diff options
| author | Andy Wingo <wingo@pobox.com> | 2015-04-19 13:28:46 +0200 |
|---|---|---|
| committer | Andy Wingo <wingo@pobox.com> | 2015-04-19 13:28:46 +0200 |
| commit | 4d6a9d42289f0616c7e37a6d2d7e085d5c71870e (patch) | |
| tree | 48ebe44e3842fec27f0928cba2f3cea11b54b26a | |
| parent | d2d9ac67812e2f8c8b82a0f3428aa576b4d58a71 (diff) | |
Remove src/journal
71 files changed, 0 insertions, 24905 deletions
diff --git a/src/journal/.gitignore b/src/journal/.gitignore deleted file mode 100644 index d6a79460cd..0000000000 --- a/src/journal/.gitignore +++ /dev/null @@ -1,2 +0,0 @@ -/journald-gperf.c -/libsystemd-journal.pc diff --git a/src/journal/Makefile b/src/journal/Makefile deleted file mode 120000 index d0b0e8e008..0000000000 --- a/src/journal/Makefile +++ /dev/null @@ -1 +0,0 @@ -../Makefile
\ No newline at end of file diff --git a/src/journal/cat.c b/src/journal/cat.c deleted file mode 100644 index 2e236f0004..0000000000 --- a/src/journal/cat.c +++ /dev/null @@ -1,173 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdio.h> -#include <getopt.h> -#include <unistd.h> -#include <stdlib.h> -#include <errno.h> -#include <fcntl.h> - -#include "systemd/sd-journal.h" - -#include "util.h" -#include "build.h" - -static char *arg_identifier = NULL; -static int arg_priority = LOG_INFO; -static bool arg_level_prefix = true; - -static void help(void) { - printf("%s [OPTIONS...] {COMMAND} ...\n\n" - "Execute process with stdout/stderr connected to the journal.\n\n" - " -h --help Show this help\n" - " --version Show package version\n" - " -t --identifier=STRING Set syslog identifier\n" - " -p --priority=PRIORITY Set priority value (0..7)\n" - " --level-prefix=BOOL Control whether level prefix shall be parsed\n" - , program_invocation_short_name); -} - -static int parse_argv(int argc, char *argv[]) { - - enum { - ARG_VERSION = 0x100, - ARG_LEVEL_PREFIX - }; - - static const struct option options[] = { - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, ARG_VERSION }, - { "identifier", required_argument, NULL, 't' }, - { "priority", required_argument, NULL, 'p' }, - { "level-prefix", required_argument, NULL, ARG_LEVEL_PREFIX }, - {} - }; - - int c; - - assert(argc >= 0); - assert(argv); - - while ((c = getopt_long(argc, argv, "+ht:p:", options, NULL)) >= 0) - - switch (c) { - - case 'h': - help(); - return 0; - - case ARG_VERSION: - puts(PACKAGE_STRING); - puts(SYSTEMD_FEATURES); - return 0; - - case 't': - free(arg_identifier); - if (isempty(optarg)) - arg_identifier = NULL; - else { - arg_identifier = strdup(optarg); - if (!arg_identifier) - return log_oom(); - } - break; - - case 'p': - arg_priority = log_level_from_string(optarg); - if (arg_priority < 0) { - log_error("Failed to parse priority value."); - return arg_priority; - } - break; - - case ARG_LEVEL_PREFIX: { - int k; - - k = parse_boolean(optarg); - if (k < 0) { - log_error("Failed to parse level prefix value."); - return k; - } - arg_level_prefix = k; - break; - } - - case '?': - return -EINVAL; - - default: - assert_not_reached("Unhandled option"); - } - - return 1; -} - -int main(int argc, char *argv[]) { - int r, fd = -1, saved_stderr = -1; - - log_parse_environment(); - log_open(); - - r = parse_argv(argc, argv); - if (r <= 0) - goto finish; - - fd = sd_journal_stream_fd(arg_identifier, arg_priority, arg_level_prefix); - if (fd < 0) { - log_error_errno(fd, "Failed to create stream fd: %m"); - r = fd; - goto finish; - } - - saved_stderr = fcntl(STDERR_FILENO, F_DUPFD_CLOEXEC, 3); - - if (dup3(fd, STDOUT_FILENO, 0) < 0 || - dup3(fd, STDERR_FILENO, 0) < 0) { - log_error_errno(errno, "Failed to duplicate fd: %m"); - r = -errno; - goto finish; - } - - if (fd >= 3) - safe_close(fd); - - fd = -1; - - if (argc <= optind) - execl("/bin/cat", "/bin/cat", NULL); - else - execvp(argv[optind], argv + optind); - - r = -errno; - - /* Let's try to restore a working stderr, so we can print the error message */ - if (saved_stderr >= 0) - dup3(saved_stderr, STDERR_FILENO, 0); - - log_error_errno(r, "Failed to execute process: %m"); - -finish: - safe_close(fd); - safe_close(saved_stderr); - - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} diff --git a/src/journal/catalog.c b/src/journal/catalog.c deleted file mode 100644 index 0801e13599..0000000000 --- a/src/journal/catalog.c +++ /dev/null @@ -1,703 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <fcntl.h> -#include <stdio.h> -#include <unistd.h> -#include <errno.h> -#include <string.h> -#include <sys/mman.h> -#include <locale.h> - -#include "util.h" -#include "log.h" -#include "sparse-endian.h" -#include "sd-id128.h" -#include "hashmap.h" -#include "strv.h" -#include "strbuf.h" -#include "conf-files.h" -#include "mkdir.h" -#include "catalog.h" -#include "siphash24.h" - -const char * const catalog_file_dirs[] = { - "/usr/local/lib/systemd/catalog/", - "/usr/lib/systemd/catalog/", - NULL -}; - -#define CATALOG_SIGNATURE (uint8_t[]) { 'R', 'H', 'H', 'H', 'K', 'S', 'L', 'P' } - -typedef struct CatalogHeader { - uint8_t signature[8]; /* "RHHHKSLP" */ - le32_t compatible_flags; - le32_t incompatible_flags; - le64_t header_size; - le64_t n_items; - le64_t catalog_item_size; -} CatalogHeader; - -typedef struct CatalogItem { - sd_id128_t id; - char language[32]; - le64_t offset; -} CatalogItem; - -static unsigned long catalog_hash_func(const void *p, const uint8_t hash_key[HASH_KEY_SIZE]) { - const CatalogItem *i = p; - uint64_t u; - size_t l, sz; - void *v; - - l = strlen(i->language); - sz = sizeof(i->id) + l; - v = alloca(sz); - - memcpy(mempcpy(v, &i->id, sizeof(i->id)), i->language, l); - - siphash24((uint8_t*) &u, v, sz, hash_key); - - return (unsigned long) u; -} - -static int catalog_compare_func(const void *a, const void *b) { - const CatalogItem *i = a, *j = b; - unsigned k; - - for (k = 0; k < ELEMENTSOF(j->id.bytes); k++) { - if (i->id.bytes[k] < j->id.bytes[k]) - return -1; - if (i->id.bytes[k] > j->id.bytes[k]) - return 1; - } - - return strcmp(i->language, j->language); -} - -const struct hash_ops catalog_hash_ops = { - .hash = catalog_hash_func, - .compare = catalog_compare_func -}; - -static int finish_item( - Hashmap *h, - struct strbuf *sb, - sd_id128_t id, - const char *language, - const char *payload) { - - ssize_t offset; - _cleanup_free_ CatalogItem *i = NULL; - int r; - - assert(h); - assert(sb); - assert(payload); - - offset = strbuf_add_string(sb, payload, strlen(payload)); - if (offset < 0) - return log_oom(); - - i = new0(CatalogItem, 1); - if (!i) - return log_oom(); - - i->id = id; - if (language) { - assert(strlen(language) > 1 && strlen(language) < 32); - strcpy(i->language, language); - } - i->offset = htole64((uint64_t) offset); - - r = hashmap_put(h, i, i); - if (r == -EEXIST) { - log_warning("Duplicate entry for " SD_ID128_FORMAT_STR ".%s, ignoring.", - SD_ID128_FORMAT_VAL(id), language ? language : "C"); - return 0; - } else if (r < 0) - return r; - - i = NULL; - return 0; -} - -int catalog_file_lang(const char* filename, char **lang) { - char *beg, *end, *_lang; - - end = endswith(filename, ".catalog"); - if (!end) - return 0; - - beg = end - 1; - while (beg > filename && *beg != '.' && *beg != '/' && end - beg < 32) - beg --; - - if (*beg != '.' || end <= beg + 1) - return 0; - - _lang = strndup(beg + 1, end - beg - 1); - if (!_lang) - return -ENOMEM; - - *lang = _lang; - return 1; -} - -static int catalog_entry_lang(const char* filename, int line, - const char* t, const char* deflang, char **lang) { - size_t c; - - c = strlen(t); - if (c == 0) { - log_error("[%s:%u] Language too short.", filename, line); - return -EINVAL; - } - if (c > 31) { - log_error("[%s:%u] language too long.", filename, line); - return -EINVAL; - } - - if (deflang) { - if (streq(t, deflang)) { - log_warning("[%s:%u] language specified unnecessarily", - filename, line); - return 0; - } else - log_warning("[%s:%u] language differs from default for file", - filename, line); - } - - *lang = strdup(t); - if (!*lang) - return -ENOMEM; - - return 0; -} - -int catalog_import_file(Hashmap *h, struct strbuf *sb, const char *path) { - _cleanup_fclose_ FILE *f = NULL; - _cleanup_free_ char *payload = NULL; - unsigned n = 0; - sd_id128_t id; - _cleanup_free_ char *deflang = NULL, *lang = NULL; - bool got_id = false, empty_line = true; - int r; - - assert(h); - assert(sb); - assert(path); - - f = fopen(path, "re"); - if (!f) - return log_error_errno(errno, "Failed to open file %s: %m", path); - - r = catalog_file_lang(path, &deflang); - if (r < 0) - log_error_errno(errno, "Failed to determine language for file %s: %m", path); - if (r == 1) - log_debug("File %s has language %s.", path, deflang); - - for (;;) { - char line[LINE_MAX]; - size_t a, b, c; - char *t; - - if (!fgets(line, sizeof(line), f)) { - if (feof(f)) - break; - - log_error_errno(errno, "Failed to read file %s: %m", path); - return -errno; - } - - n++; - - truncate_nl(line); - - if (line[0] == 0) { - empty_line = true; - continue; - } - - if (strchr(COMMENTS "\n", line[0])) - continue; - - if (empty_line && - strlen(line) >= 2+1+32 && - line[0] == '-' && - line[1] == '-' && - line[2] == ' ' && - (line[2+1+32] == ' ' || line[2+1+32] == '\0')) { - - bool with_language; - sd_id128_t jd; - - /* New entry */ - - with_language = line[2+1+32] != '\0'; - line[2+1+32] = '\0'; - - if (sd_id128_from_string(line + 2 + 1, &jd) >= 0) { - - if (got_id) { - r = finish_item(h, sb, id, lang ?: deflang, payload); - if (r < 0) - return r; - - free(lang); - lang = NULL; - } - - if (with_language) { - t = strstrip(line + 2 + 1 + 32 + 1); - - r = catalog_entry_lang(path, n, t, deflang, &lang); - if (r < 0) - return r; - } - - got_id = true; - empty_line = false; - id = jd; - - if (payload) - payload[0] = '\0'; - - continue; - } - } - - /* Payload */ - if (!got_id) { - log_error("[%s:%u] Got payload before ID.", path, n); - return -EINVAL; - } - - a = payload ? strlen(payload) : 0; - b = strlen(line); - - c = a + (empty_line ? 1 : 0) + b + 1 + 1; - t = realloc(payload, c); - if (!t) - return log_oom(); - - if (empty_line) { - t[a] = '\n'; - memcpy(t + a + 1, line, b); - t[a+b+1] = '\n'; - t[a+b+2] = 0; - } else { - memcpy(t + a, line, b); - t[a+b] = '\n'; - t[a+b+1] = 0; - } - - payload = t; - empty_line = false; - } - - if (got_id) { - r = finish_item(h, sb, id, lang ?: deflang, payload); - if (r < 0) - return r; - } - - return 0; -} - -static long write_catalog(const char *database, Hashmap *h, struct strbuf *sb, - CatalogItem *items, size_t n) { - CatalogHeader header; - _cleanup_fclose_ FILE *w = NULL; - int r; - _cleanup_free_ char *d, *p = NULL; - size_t k; - - d = dirname_malloc(database); - if (!d) - return log_oom(); - - r = mkdir_p(d, 0775); - if (r < 0) - return log_error_errno(r, "Recursive mkdir %s: %m", d); - - r = fopen_temporary(database, &w, &p); - if (r < 0) - return log_error_errno(r, "Failed to open database for writing: %s: %m", - database); - - zero(header); - memcpy(header.signature, CATALOG_SIGNATURE, sizeof(header.signature)); - header.header_size = htole64(ALIGN_TO(sizeof(CatalogHeader), 8)); - header.catalog_item_size = htole64(sizeof(CatalogItem)); - header.n_items = htole64(hashmap_size(h)); - - r = -EIO; - - k = fwrite(&header, 1, sizeof(header), w); - if (k != sizeof(header)) { - log_error("%s: failed to write header.", p); - goto error; - } - - k = fwrite(items, 1, n * sizeof(CatalogItem), w); - if (k != n * sizeof(CatalogItem)) { - log_error("%s: failed to write database.", p); - goto error; - } - - k = fwrite(sb->buf, 1, sb->len, w); - if (k != sb->len) { - log_error("%s: failed to write strings.", p); - goto error; - } - - fflush(w); - - if (ferror(w)) { - log_error("%s: failed to write database.", p); - goto error; - } - - fchmod(fileno(w), 0644); - - if (rename(p, database) < 0) { - log_error_errno(errno, "rename (%s -> %s) failed: %m", p, database); - r = -errno; - goto error; - } - - return ftell(w); - -error: - unlink(p); - return r; -} - -int catalog_update(const char* database, const char* root, const char* const* dirs) { - _cleanup_strv_free_ char **files = NULL; - char **f; - struct strbuf *sb = NULL; - _cleanup_hashmap_free_free_ Hashmap *h = NULL; - _cleanup_free_ CatalogItem *items = NULL; - CatalogItem *i; - Iterator j; - unsigned n; - long r; - - h = hashmap_new(&catalog_hash_ops); - sb = strbuf_new(); - - if (!h || !sb) { - r = log_oom(); - goto finish; - } - - r = conf_files_list_strv(&files, ".catalog", root, dirs); - if (r < 0) { - log_error_errno(r, "Failed to get catalog files: %m"); - goto finish; - } - - STRV_FOREACH(f, files) { - log_debug("Reading file '%s'", *f); - r = catalog_import_file(h, sb, *f); - if (r < 0) { - log_error("Failed to import file '%s': %s.", - *f, strerror(-r)); - goto finish; - } - } - - if (hashmap_size(h) <= 0) { - log_info("No items in catalog."); - goto finish; - } else - log_debug("Found %u items in catalog.", hashmap_size(h)); - - strbuf_complete(sb); - - items = new(CatalogItem, hashmap_size(h)); - if (!items) { - r = log_oom(); - goto finish; - } - - n = 0; - HASHMAP_FOREACH(i, h, j) { - log_debug("Found " SD_ID128_FORMAT_STR ", language %s", - SD_ID128_FORMAT_VAL(i->id), - isempty(i->language) ? "C" : i->language); - items[n++] = *i; - } - - assert(n == hashmap_size(h)); - qsort_safe(items, n, sizeof(CatalogItem), catalog_compare_func); - - r = write_catalog(database, h, sb, items, n); - if (r < 0) - log_error_errno(r, "Failed to write %s: %m", database); - else - log_debug("%s: wrote %u items, with %zu bytes of strings, %ld total size.", - database, n, sb->len, r); - -finish: - if (sb) - strbuf_cleanup(sb); - - return r < 0 ? r : 0; -} - -static int open_mmap(const char *database, int *_fd, struct stat *_st, void **_p) { - const CatalogHeader *h; - int fd; - void *p; - struct stat st; - - assert(_fd); - assert(_st); - assert(_p); - - fd = open(database, O_RDONLY|O_CLOEXEC); - if (fd < 0) - return -errno; - - if (fstat(fd, &st) < 0) { - safe_close(fd); - return -errno; - } - - if (st.st_size < (off_t) sizeof(CatalogHeader)) { - safe_close(fd); - return -EINVAL; - } - - p = mmap(NULL, PAGE_ALIGN(st.st_size), PROT_READ, MAP_SHARED, fd, 0); - if (p == MAP_FAILED) { - safe_close(fd); - return -errno; - } - - h = p; - if (memcmp(h->signature, CATALOG_SIGNATURE, sizeof(h->signature)) != 0 || - le64toh(h->header_size) < sizeof(CatalogHeader) || - le64toh(h->catalog_item_size) < sizeof(CatalogItem) || - h->incompatible_flags != 0 || - le64toh(h->n_items) <= 0 || - st.st_size < (off_t) (le64toh(h->header_size) + le64toh(h->catalog_item_size) * le64toh(h->n_items))) { - safe_close(fd); - munmap(p, st.st_size); - return -EBADMSG; - } - - *_fd = fd; - *_st = st; - *_p = p; - - return 0; -} - -static const char *find_id(void *p, sd_id128_t id) { - CatalogItem key, *f = NULL; - const CatalogHeader *h = p; - const char *loc; - - zero(key); - key.id = id; - - loc = setlocale(LC_MESSAGES, NULL); - if (loc && loc[0] && !streq(loc, "C") && !streq(loc, "POSIX")) { - strncpy(key.language, loc, sizeof(key.language)); - key.language[strcspn(key.language, ".@")] = 0; - - f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func); - if (!f) { - char *e; - - e = strchr(key.language, '_'); - if (e) { - *e = 0; - f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func); - } - } - } - - if (!f) { - zero(key.language); - f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func); - } - - if (!f) - return NULL; - - return (const char*) p + - le64toh(h->header_size) + - le64toh(h->n_items) * le64toh(h->catalog_item_size) + - le64toh(f->offset); -} - -int catalog_get(const char* database, sd_id128_t id, char **_text) { - _cleanup_close_ int fd = -1; - void *p = NULL; - struct stat st = {}; - char *text = NULL; - int r; - const char *s; - - assert(_text); - - r = open_mmap(database, &fd, &st, &p); - if (r < 0) - return r; - - s = find_id(p, id); - if (!s) { - r = -ENOENT; - goto finish; - } - - text = strdup(s); - if (!text) { - r = -ENOMEM; - goto finish; - } - - *_text = text; - r = 0; - -finish: - if (p) - munmap(p, st.st_size); - - return r; -} - -static char *find_header(const char *s, const char *header) { - - for (;;) { - const char *v, *e; - - v = startswith(s, header); - if (v) { - v += strspn(v, WHITESPACE); - return strndup(v, strcspn(v, NEWLINE)); - } - - /* End of text */ - e = strchr(s, '\n'); - if (!e) - return NULL; - - /* End of header */ - if (e == s) - return NULL; - - s = e + 1; - } -} - -static void dump_catalog_entry(FILE *f, sd_id128_t id, const char *s, bool oneline) { - if (oneline) { - _cleanup_free_ char *subject = NULL, *defined_by = NULL; - - subject = find_header(s, "Subject:"); - defined_by = find_header(s, "Defined-By:"); - - fprintf(f, SD_ID128_FORMAT_STR " %s: %s\n", - SD_ID128_FORMAT_VAL(id), - strna(defined_by), strna(subject)); - } else - fprintf(f, "-- " SD_ID128_FORMAT_STR "\n%s\n", - SD_ID128_FORMAT_VAL(id), s); -} - - -int catalog_list(FILE *f, const char *database, bool oneline) { - _cleanup_close_ int fd = -1; - void *p = NULL; - struct stat st; - const CatalogHeader *h; - const CatalogItem *items; - int r; - unsigned n; - sd_id128_t last_id; - bool last_id_set = false; - - r = open_mmap(database, &fd, &st, &p); - if (r < 0) - return r; - - h = p; - items = (const CatalogItem*) ((const uint8_t*) p + le64toh(h->header_size)); - - for (n = 0; n < le64toh(h->n_items); n++) { - const char *s; - - if (last_id_set && sd_id128_equal(last_id, items[n].id)) - continue; - - assert_se(s = find_id(p, items[n].id)); - - dump_catalog_entry(f, items[n].id, s, oneline); - - last_id_set = true; - last_id = items[n].id; - } - - munmap(p, st.st_size); - - return 0; -} - -int catalog_list_items(FILE *f, const char *database, bool oneline, char **items) { - char **item; - int r = 0; - - STRV_FOREACH(item, items) { - sd_id128_t id; - int k; - _cleanup_free_ char *msg = NULL; - - k = sd_id128_from_string(*item, &id); - if (k < 0) { - log_error_errno(k, "Failed to parse id128 '%s': %m", - *item); - if (r == 0) - r = k; - continue; - } - - k = catalog_get(database, id, &msg); - if (k < 0) { - log_full(k == -ENOENT ? LOG_NOTICE : LOG_ERR, - "Failed to retrieve catalog entry for '%s': %s", - *item, strerror(-k)); - if (r == 0) - r = k; - continue; - } - - dump_catalog_entry(f, id, msg, oneline); - } - - return r; -} diff --git a/src/journal/catalog.h b/src/journal/catalog.h deleted file mode 100644 index a72ecf6de7..0000000000 --- a/src/journal/catalog.h +++ /dev/null @@ -1,37 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdbool.h> - -#include "sd-id128.h" -#include "hashmap.h" -#include "strbuf.h" - -int catalog_import_file(Hashmap *h, struct strbuf *sb, const char *path); -int catalog_update(const char* database, const char* root, const char* const* dirs); -int catalog_get(const char* database, sd_id128_t id, char **data); -int catalog_list(FILE *f, const char* database, bool oneline); -int catalog_list_items(FILE *f, const char* database, bool oneline, char **items); -int catalog_file_lang(const char *filename, char **lang); -extern const char * const catalog_file_dirs[]; -extern const struct hash_ops catalog_hash_ops; diff --git a/src/journal/compress.c b/src/journal/compress.c deleted file mode 100644 index 383f6a6e96..0000000000 --- a/src/journal/compress.c +++ /dev/null @@ -1,658 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#ifdef HAVE_XZ -# include <lzma.h> -#endif - -#ifdef HAVE_LZ4 -# include <lz4.h> -#endif - -#include "compress.h" -#include "macro.h" -#include "util.h" -#include "sparse-endian.h" -#include "journal-def.h" - -#define ALIGN_8(l) ALIGN_TO(l, sizeof(size_t)) - -static const char* const object_compressed_table[_OBJECT_COMPRESSED_MAX] = { - [OBJECT_COMPRESSED_XZ] = "XZ", - [OBJECT_COMPRESSED_LZ4] = "LZ4", -}; - -DEFINE_STRING_TABLE_LOOKUP(object_compressed, int); - -int compress_blob_xz(const void *src, uint64_t src_size, void *dst, size_t *dst_size) { -#ifdef HAVE_XZ - static const lzma_options_lzma opt = { - 1u << 20u, NULL, 0, LZMA_LC_DEFAULT, LZMA_LP_DEFAULT, - LZMA_PB_DEFAULT, LZMA_MODE_FAST, 128, LZMA_MF_HC3, 4}; - static const lzma_filter filters[2] = { - {LZMA_FILTER_LZMA2, (lzma_options_lzma*) &opt}, - {LZMA_VLI_UNKNOWN, NULL} - }; - lzma_ret ret; - size_t out_pos = 0; - - assert(src); - assert(src_size > 0); - assert(dst); - assert(dst_size); - - /* Returns < 0 if we couldn't compress the data or the - * compressed result is longer than the original */ - - if (src_size < 80) - return -ENOBUFS; - - ret = lzma_stream_buffer_encode((lzma_filter*) filters, LZMA_CHECK_NONE, NULL, - src, src_size, dst, &out_pos, src_size - 1); - if (ret != LZMA_OK) - return -ENOBUFS; - - *dst_size = out_pos; - return 0; -#else - return -EPROTONOSUPPORT; -#endif -} - -int compress_blob_lz4(const void *src, uint64_t src_size, void *dst, size_t *dst_size) { -#ifdef HAVE_LZ4 - int r; - - assert(src); - assert(src_size > 0); - assert(dst); - assert(dst_size); - - /* Returns < 0 if we couldn't compress the data or the - * compressed result is longer than the original */ - - if (src_size < 9) - return -ENOBUFS; - - r = LZ4_compress_limitedOutput(src, dst + 8, src_size, src_size - 8 - 1); - if (r <= 0) - return -ENOBUFS; - - *(le64_t*) dst = htole64(src_size); - *dst_size = r + 8; - - return 0; -#else - return -EPROTONOSUPPORT; -#endif -} - - -int decompress_blob_xz(const void *src, uint64_t src_size, - void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max) { - -#ifdef HAVE_XZ - _cleanup_(lzma_end) lzma_stream s = LZMA_STREAM_INIT; - lzma_ret ret; - size_t space; - - assert(src); - assert(src_size > 0); - assert(dst); - assert(dst_alloc_size); - assert(dst_size); - assert(*dst_alloc_size == 0 || *dst); - - ret = lzma_stream_decoder(&s, UINT64_MAX, 0); - if (ret != LZMA_OK) - return -ENOMEM; - - space = MIN(src_size * 2, dst_max ?: (size_t) -1); - if (!greedy_realloc(dst, dst_alloc_size, space, 1)) - return -ENOMEM; - - s.next_in = src; - s.avail_in = src_size; - - s.next_out = *dst; - s.avail_out = space; - - for (;;) { - size_t used; - - ret = lzma_code(&s, LZMA_FINISH); - - if (ret == LZMA_STREAM_END) - break; - else if (ret != LZMA_OK) - return -ENOMEM; - - if (dst_max > 0 && (space - s.avail_out) >= dst_max) - break; - else if (dst_max > 0 && space == dst_max) - return -ENOBUFS; - - used = space - s.avail_out; - space = MIN(2 * space, dst_max ?: (size_t) -1); - if (!greedy_realloc(dst, dst_alloc_size, space, 1)) - return -ENOMEM; - - s.avail_out = space - used; - s.next_out = *dst + used; - } - - *dst_size = space - s.avail_out; - return 0; -#else - return -EPROTONOSUPPORT; -#endif -} - -int decompress_blob_lz4(const void *src, uint64_t src_size, - void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max) { - -#ifdef HAVE_LZ4 - char* out; - int r, size; /* LZ4 uses int for size */ - - assert(src); - assert(src_size > 0); - assert(dst); - assert(dst_alloc_size); - assert(dst_size); - assert(*dst_alloc_size == 0 || *dst); - - if (src_size <= 8) - return -EBADMSG; - - size = le64toh( *(le64_t*)src ); - if (size < 0 || (le64_t) size != *(le64_t*)src) - return -EFBIG; - if ((size_t) size > *dst_alloc_size) { - out = realloc(*dst, size); - if (!out) - return -ENOMEM; - *dst = out; - *dst_alloc_size = size; - } else - out = *dst; - - r = LZ4_decompress_safe(src + 8, out, src_size - 8, size); - if (r < 0 || r != size) - return -EBADMSG; - - *dst_size = size; - return 0; -#else - return -EPROTONOSUPPORT; -#endif -} - -int decompress_blob(int compression, - const void *src, uint64_t src_size, - void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max) { - if (compression == OBJECT_COMPRESSED_XZ) - return decompress_blob_xz(src, src_size, - dst, dst_alloc_size, dst_size, dst_max); - else if (compression == OBJECT_COMPRESSED_LZ4) - return decompress_blob_lz4(src, src_size, - dst, dst_alloc_size, dst_size, dst_max); - else - return -EBADMSG; -} - - -int decompress_startswith_xz(const void *src, uint64_t src_size, - void **buffer, size_t *buffer_size, - const void *prefix, size_t prefix_len, - uint8_t extra) { - -#ifdef HAVE_XZ - _cleanup_(lzma_end) lzma_stream s = LZMA_STREAM_INIT; - lzma_ret ret; - - /* Checks whether the decompressed blob starts with the - * mentioned prefix. The byte extra needs to follow the - * prefix */ - - assert(src); - assert(src_size > 0); - assert(buffer); - assert(buffer_size); - assert(prefix); - assert(*buffer_size == 0 || *buffer); - - ret = lzma_stream_decoder(&s, UINT64_MAX, 0); - if (ret != LZMA_OK) - return -EBADMSG; - - if (!(greedy_realloc(buffer, buffer_size, ALIGN_8(prefix_len + 1), 1))) - return -ENOMEM; - - s.next_in = src; - s.avail_in = src_size; - - s.next_out = *buffer; - s.avail_out = *buffer_size; - - for (;;) { - ret = lzma_code(&s, LZMA_FINISH); - - if (ret != LZMA_STREAM_END && ret != LZMA_OK) - return -EBADMSG; - - if (*buffer_size - s.avail_out >= prefix_len + 1) - return memcmp(*buffer, prefix, prefix_len) == 0 && - ((const uint8_t*) *buffer)[prefix_len] == extra; - - if (ret == LZMA_STREAM_END) - return 0; - - s.avail_out += *buffer_size; - - if (!(greedy_realloc(buffer, buffer_size, *buffer_size * 2, 1))) - return -ENOMEM; - - s.next_out = *buffer + *buffer_size - s.avail_out; - } - -#else - return -EPROTONOSUPPORT; -#endif -} - -int decompress_startswith_lz4(const void *src, uint64_t src_size, - void **buffer, size_t *buffer_size, - const void *prefix, size_t prefix_len, - uint8_t extra) { -#ifdef HAVE_LZ4 - /* Checks whether the decompressed blob starts with the - * mentioned prefix. The byte extra needs to follow the - * prefix */ - - int r; - - assert(src); - assert(src_size > 0); - assert(buffer); - assert(buffer_size); - assert(prefix); - assert(*buffer_size == 0 || *buffer); - - if (src_size <= 8) - return -EBADMSG; - - if (!(greedy_realloc(buffer, buffer_size, ALIGN_8(prefix_len + 1), 1))) - return -ENOMEM; - - r = LZ4_decompress_safe_partial(src + 8, *buffer, src_size - 8, - prefix_len + 1, *buffer_size); - - if (r < 0) - return -EBADMSG; - if ((unsigned) r >= prefix_len + 1) - return memcmp(*buffer, prefix, prefix_len) == 0 && - ((const uint8_t*) *buffer)[prefix_len] == extra; - else - return 0; - -#else - return -EPROTONOSUPPORT; -#endif -} - -int decompress_startswith(int compression, - const void *src, uint64_t src_size, - void **buffer, size_t *buffer_size, - const void *prefix, size_t prefix_len, - uint8_t extra) { - if (compression == OBJECT_COMPRESSED_XZ) - return decompress_startswith_xz(src, src_size, - buffer, buffer_size, - prefix, prefix_len, - extra); - else if (compression == OBJECT_COMPRESSED_LZ4) - return decompress_startswith_lz4(src, src_size, - buffer, buffer_size, - prefix, prefix_len, - extra); - else - return -EBADMSG; -} - -int compress_stream_xz(int fdf, int fdt, off_t max_bytes) { -#ifdef HAVE_XZ - _cleanup_(lzma_end) lzma_stream s = LZMA_STREAM_INIT; - lzma_ret ret; - - uint8_t buf[BUFSIZ], out[BUFSIZ]; - lzma_action action = LZMA_RUN; - - assert(fdf >= 0); - assert(fdt >= 0); - - ret = lzma_easy_encoder(&s, LZMA_PRESET_DEFAULT, LZMA_CHECK_CRC64); - if (ret != LZMA_OK) { - log_error("Failed to initialize XZ encoder: code %u", ret); - return -EINVAL; - } - - for (;;) { - if (s.avail_in == 0 && action == LZMA_RUN) { - size_t m = sizeof(buf); - ssize_t n; - - if (max_bytes != -1 && m > (size_t) max_bytes) - m = max_bytes; - - n = read(fdf, buf, m); - if (n < 0) - return -errno; - if (n == 0) - action = LZMA_FINISH; - else { - s.next_in = buf; - s.avail_in = n; - - if (max_bytes != -1) { - assert(max_bytes >= n); - max_bytes -= n; - } - } - } - - if (s.avail_out == 0) { - s.next_out = out; - s.avail_out = sizeof(out); - } - - ret = lzma_code(&s, action); - if (ret != LZMA_OK && ret != LZMA_STREAM_END) { - log_error("Compression failed: code %u", ret); - return -EBADMSG; - } - - if (s.avail_out == 0 || ret == LZMA_STREAM_END) { - ssize_t n, k; - - n = sizeof(out) - s.avail_out; - - k = loop_write(fdt, out, n, false); - if (k < 0) - return k; - - if (ret == LZMA_STREAM_END) { - log_debug("XZ compression finished (%"PRIu64" -> %"PRIu64" bytes, %.1f%%)", - s.total_in, s.total_out, - (double) s.total_out / s.total_in * 100); - - return 0; - } - } - } -#else - return -EPROTONOSUPPORT; -#endif -} - -#define LZ4_BUFSIZE (512*1024) - -int compress_stream_lz4(int fdf, int fdt, off_t max_bytes) { - -#ifdef HAVE_LZ4 - - _cleanup_free_ char *buf1 = NULL, *buf2 = NULL, *out = NULL; - char *buf; - LZ4_stream_t lz4_data = {}; - le32_t header; - size_t total_in = 0, total_out = sizeof(header); - ssize_t n; - - assert(fdf >= 0); - assert(fdt >= 0); - - buf1 = malloc(LZ4_BUFSIZE); - buf2 = malloc(LZ4_BUFSIZE); - out = malloc(LZ4_COMPRESSBOUND(LZ4_BUFSIZE)); - if (!buf1 || !buf2 || !out) - return log_oom(); - - buf = buf1; - for (;;) { - size_t m; - int r; - - m = LZ4_BUFSIZE; - if (max_bytes != -1 && m > (size_t) max_bytes - total_in) - m = max_bytes - total_in; - - n = read(fdf, buf, m); - if (n < 0) - return -errno; - if (n == 0) - break; - - total_in += n; - - r = LZ4_compress_continue(&lz4_data, buf, out, n); - if (r == 0) { - log_error("LZ4 compression failed."); - return -EBADMSG; - } - - header = htole32(r); - errno = 0; - - n = write(fdt, &header, sizeof(header)); - if (n < 0) - return -errno; - if (n != sizeof(header)) - return errno ? -errno : -EIO; - - n = loop_write(fdt, out, r, false); - if (n < 0) - return n; - - total_out += sizeof(header) + r; - - buf = buf == buf1 ? buf2 : buf1; - } - - header = htole32(0); - n = write(fdt, &header, sizeof(header)); - if (n < 0) - return -errno; - if (n != sizeof(header)) - return errno ? -errno : -EIO; - - log_debug("LZ4 compression finished (%zu -> %zu bytes, %.1f%%)", - total_in, total_out, - (double) total_out / total_in * 100); - - return 0; -#else - return -EPROTONOSUPPORT; -#endif -} - -int decompress_stream_xz(int fdf, int fdt, off_t max_bytes) { - -#ifdef HAVE_XZ - _cleanup_(lzma_end) lzma_stream s = LZMA_STREAM_INIT; - lzma_ret ret; - - uint8_t buf[BUFSIZ], out[BUFSIZ]; - lzma_action action = LZMA_RUN; - - assert(fdf >= 0); - assert(fdt >= 0); - - ret = lzma_stream_decoder(&s, UINT64_MAX, 0); - if (ret != LZMA_OK) { - log_error("Failed to initialize XZ decoder: code %u", ret); - return -ENOMEM; - } - - for (;;) { - if (s.avail_in == 0 && action == LZMA_RUN) { - ssize_t n; - - n = read(fdf, buf, sizeof(buf)); - if (n < 0) - return -errno; - if (n == 0) - action = LZMA_FINISH; - else { - s.next_in = buf; - s.avail_in = n; - } - } - - if (s.avail_out == 0) { - s.next_out = out; - s.avail_out = sizeof(out); - } - - ret = lzma_code(&s, action); - if (ret != LZMA_OK && ret != LZMA_STREAM_END) { - log_error("Decompression failed: code %u", ret); - return -EBADMSG; - } - - if (s.avail_out == 0 || ret == LZMA_STREAM_END) { - ssize_t n, k; - - n = sizeof(out) - s.avail_out; - - if (max_bytes != -1) { - if (max_bytes < n) - return -EFBIG; - - max_bytes -= n; - } - - k = loop_write(fdt, out, n, false); - if (k < 0) - return k; - - if (ret == LZMA_STREAM_END) { - log_debug("XZ decompression finished (%"PRIu64" -> %"PRIu64" bytes, %.1f%%)", - s.total_in, s.total_out, - (double) s.total_out / s.total_in * 100); - - return 0; - } - } - } -#else - log_error("Cannot decompress file. Compiled without XZ support."); - return -EPROTONOSUPPORT; -#endif -} - -int decompress_stream_lz4(int fdf, int fdt, off_t max_bytes) { - -#ifdef HAVE_LZ4 - _cleanup_free_ char *buf = NULL, *out = NULL; - size_t buf_size = 0; - LZ4_streamDecode_t lz4_data = {}; - le32_t header; - size_t total_in = sizeof(header), total_out = 0; - - assert(fdf >= 0); - assert(fdt >= 0); - - out = malloc(4*LZ4_BUFSIZE); - if (!out) - return log_oom(); - - for (;;) { - ssize_t m; - int r; - - r = loop_read_exact(fdf, &header, sizeof(header), false); - if (r < 0) - return r; - - m = le32toh(header); - if (m == 0) - break; - - /* We refuse to use a bigger decompression buffer than - * the one used for compression by 4 times. This means - * that compression buffer size can be enlarged 4 - * times. This can be changed, but old binaries might - * not accept buffers compressed by newer binaries then. - */ - if (m > LZ4_COMPRESSBOUND(LZ4_BUFSIZE * 4)) { - log_error("Compressed stream block too big: %zd bytes", m); - return -EBADMSG; - } - - total_in += sizeof(header) + m; - - if (!GREEDY_REALLOC(buf, buf_size, m)) - return log_oom(); - - r = loop_read_exact(fdf, buf, m, false); - if (r < 0) - return r; - - r = LZ4_decompress_safe_continue(&lz4_data, buf, out, m, 4*LZ4_BUFSIZE); - if (r <= 0) - log_error("LZ4 decompression failed."); - - total_out += r; - - if (max_bytes != -1 && total_out > (size_t) max_bytes) { - log_debug("Decompressed stream longer than %zd bytes", max_bytes); - return -EFBIG; - } - - r = loop_write(fdt, out, r, false); - if (r < 0) - return r; - } - - log_debug("LZ4 decompression finished (%zu -> %zu bytes, %.1f%%)", - total_in, total_out, - (double) total_out / total_in * 100); - - return 0; -#else - log_error("Cannot decompress file. Compiled without LZ4 support."); - return -EPROTONOSUPPORT; -#endif -} - -int decompress_stream(const char *filename, int fdf, int fdt, off_t max_bytes) { - - if (endswith(filename, ".lz4")) - return decompress_stream_lz4(fdf, fdt, max_bytes); - else if (endswith(filename, ".xz")) - return decompress_stream_xz(fdf, fdt, max_bytes); - else - return -EPROTONOSUPPORT; -} diff --git a/src/journal/compress.h b/src/journal/compress.h deleted file mode 100644 index 6294f16faa..0000000000 --- a/src/journal/compress.h +++ /dev/null @@ -1,84 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> - -#include "journal-def.h" - -const char* object_compressed_to_string(int compression); -int object_compressed_from_string(const char *compression); - -int compress_blob_xz(const void *src, uint64_t src_size, void *dst, size_t *dst_size); -int compress_blob_lz4(const void *src, uint64_t src_size, void *dst, size_t *dst_size); - -static inline int compress_blob(const void *src, uint64_t src_size, void *dst, size_t *dst_size) { - int r; -#ifdef HAVE_LZ4 - r = compress_blob_lz4(src, src_size, dst, dst_size); - if (r == 0) - return OBJECT_COMPRESSED_LZ4; -#else - r = compress_blob_xz(src, src_size, dst, dst_size); - if (r == 0) - return OBJECT_COMPRESSED_XZ; -#endif - return r; -} - -int decompress_blob_xz(const void *src, uint64_t src_size, - void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max); -int decompress_blob_lz4(const void *src, uint64_t src_size, - void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max); -int decompress_blob(int compression, - const void *src, uint64_t src_size, - void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max); - -int decompress_startswith_xz(const void *src, uint64_t src_size, - void **buffer, size_t *buffer_size, - const void *prefix, size_t prefix_len, - uint8_t extra); -int decompress_startswith_lz4(const void *src, uint64_t src_size, - void **buffer, size_t *buffer_size, - const void *prefix, size_t prefix_len, - uint8_t extra); -int decompress_startswith(int compression, - const void *src, uint64_t src_size, - void **buffer, size_t *buffer_size, - const void *prefix, size_t prefix_len, - uint8_t extra); - -int compress_stream_xz(int fdf, int fdt, off_t max_bytes); -int compress_stream_lz4(int fdf, int fdt, off_t max_bytes); - -int decompress_stream_xz(int fdf, int fdt, off_t max_size); -int decompress_stream_lz4(int fdf, int fdt, off_t max_size); - -#ifdef HAVE_LZ4 -# define compress_stream compress_stream_lz4 -# define COMPRESSED_EXT ".lz4" -#else -# define compress_stream compress_stream_xz -# define COMPRESSED_EXT ".xz" -#endif - -int decompress_stream(const char *filename, int fdf, int fdt, off_t max_bytes); diff --git a/src/journal/coredump-vacuum.c b/src/journal/coredump-vacuum.c deleted file mode 100644 index 9b73795e5b..0000000000 --- a/src/journal/coredump-vacuum.c +++ /dev/null @@ -1,270 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <sys/statvfs.h> - -#include "util.h" -#include "time-util.h" -#include "hashmap.h" -#include "macro.h" - -#include "coredump-vacuum.h" - -#define DEFAULT_MAX_USE_LOWER (off_t) (1ULL*1024ULL*1024ULL) /* 1 MiB */ -#define DEFAULT_MAX_USE_UPPER (off_t) (4ULL*1024ULL*1024ULL*1024ULL) /* 4 GiB */ -#define DEFAULT_KEEP_FREE_UPPER (off_t) (4ULL*1024ULL*1024ULL*1024ULL) /* 4 GiB */ -#define DEFAULT_KEEP_FREE (off_t) (1024ULL*1024ULL) /* 1 MB */ - -struct vacuum_candidate { - unsigned n_files; - char *oldest_file; - usec_t oldest_mtime; -}; - -static void vacuum_candidate_free(struct vacuum_candidate *c) { - if (!c) - return; - - free(c->oldest_file); - free(c); -} - -DEFINE_TRIVIAL_CLEANUP_FUNC(struct vacuum_candidate*, vacuum_candidate_free); - -static void vacuum_candidate_hasmap_free(Hashmap *h) { - struct vacuum_candidate *c; - - while ((c = hashmap_steal_first(h))) - vacuum_candidate_free(c); - - hashmap_free(h); -} - -DEFINE_TRIVIAL_CLEANUP_FUNC(Hashmap*, vacuum_candidate_hasmap_free); - -static int uid_from_file_name(const char *filename, uid_t *uid) { - const char *p, *e, *u; - - p = startswith(filename, "core."); - if (!p) - return -EINVAL; - - /* Skip the comm field */ - p = strchr(p, '.'); - if (!p) - return -EINVAL; - p++; - - /* Find end up UID */ - e = strchr(p, '.'); - if (!e) - return -EINVAL; - - u = strndupa(p, e-p); - return parse_uid(u, uid); -} - -static bool vacuum_necessary(int fd, off_t sum, off_t keep_free, off_t max_use) { - off_t fs_size = 0, fs_free = (off_t) -1; - struct statvfs sv; - - assert(fd >= 0); - - if (fstatvfs(fd, &sv) >= 0) { - fs_size = sv.f_frsize * sv.f_blocks; - fs_free = sv.f_frsize * sv.f_bfree; - } - - if (max_use == (off_t) -1) { - - if (fs_size > 0) { - max_use = PAGE_ALIGN(fs_size / 10); /* 10% */ - - if (max_use > DEFAULT_MAX_USE_UPPER) - max_use = DEFAULT_MAX_USE_UPPER; - - if (max_use < DEFAULT_MAX_USE_LOWER) - max_use = DEFAULT_MAX_USE_LOWER; - } - else - max_use = DEFAULT_MAX_USE_LOWER; - } else - max_use = PAGE_ALIGN(max_use); - - if (max_use > 0 && sum > max_use) - return true; - - if (keep_free == (off_t) -1) { - - if (fs_size > 0) { - keep_free = PAGE_ALIGN((fs_size * 3) / 20); /* 15% */ - - if (keep_free > DEFAULT_KEEP_FREE_UPPER) - keep_free = DEFAULT_KEEP_FREE_UPPER; - } else - keep_free = DEFAULT_KEEP_FREE; - } else - keep_free = PAGE_ALIGN(keep_free); - - if (keep_free > 0 && fs_free < keep_free) - return true; - - return false; -} - -int coredump_vacuum(int exclude_fd, off_t keep_free, off_t max_use) { - _cleanup_closedir_ DIR *d = NULL; - struct stat exclude_st; - int r; - - if (keep_free <= 0 && max_use <= 0) - return 0; - - if (exclude_fd >= 0) { - if (fstat(exclude_fd, &exclude_st) < 0) - return log_error_errno(errno, "Failed to fstat(): %m"); - } - - /* This algorithm will keep deleting the oldest file of the - * user with the most coredumps until we are back in the size - * limits. Note that vacuuming for journal files is different, - * because we rely on rate-limiting of the messages there, - * to avoid being flooded. */ - - d = opendir("/var/lib/systemd/coredump"); - if (!d) { - if (errno == ENOENT) - return 0; - - log_error_errno(errno, "Can't open coredump directory: %m"); - return -errno; - } - - for (;;) { - _cleanup_(vacuum_candidate_hasmap_freep) Hashmap *h = NULL; - struct vacuum_candidate *worst = NULL; - struct dirent *de; - off_t sum = 0; - - rewinddir(d); - - FOREACH_DIRENT(de, d, goto fail) { - struct vacuum_candidate *c; - struct stat st; - uid_t uid; - usec_t t; - - r = uid_from_file_name(de->d_name, &uid); - if (r < 0) - continue; - - if (fstatat(dirfd(d), de->d_name, &st, AT_NO_AUTOMOUNT|AT_SYMLINK_NOFOLLOW) < 0) { - if (errno == ENOENT) - continue; - - log_warning("Failed to stat /var/lib/systemd/coredump/%s", de->d_name); - continue; - } - - if (!S_ISREG(st.st_mode)) - continue; - - if (exclude_fd >= 0 && - exclude_st.st_dev == st.st_dev && - exclude_st.st_ino == st.st_ino) - continue; - - r = hashmap_ensure_allocated(&h, NULL); - if (r < 0) - return log_oom(); - - t = timespec_load(&st.st_mtim); - - c = hashmap_get(h, UINT32_TO_PTR(uid)); - if (c) { - - if (t < c->oldest_mtime) { - char *n; - - n = strdup(de->d_name); - if (!n) - return log_oom(); - - free(c->oldest_file); - c->oldest_file = n; - c->oldest_mtime = t; - } - - } else { - _cleanup_(vacuum_candidate_freep) struct vacuum_candidate *n = NULL; - - n = new0(struct vacuum_candidate, 1); - if (!n) - return log_oom(); - - n->oldest_file = strdup(de->d_name); - if (!n->oldest_file) - return log_oom(); - - n->oldest_mtime = t; - - r = hashmap_put(h, UINT32_TO_PTR(uid), n); - if (r < 0) - return log_oom(); - - c = n; - n = NULL; - } - - c->n_files++; - - if (!worst || - worst->n_files < c->n_files || - (worst->n_files == c->n_files && c->oldest_mtime < worst->oldest_mtime)) - worst = c; - - sum += st.st_blocks * 512; - } - - if (!worst) - break; - - r = vacuum_necessary(dirfd(d), sum, keep_free, max_use); - if (r <= 0) - return r; - - if (unlinkat(dirfd(d), worst->oldest_file, 0) < 0) { - - if (errno == ENOENT) - continue; - - log_error_errno(errno, "Failed to remove file %s: %m", worst->oldest_file); - return -errno; - } else - log_info("Removed old coredump %s.", worst->oldest_file); - } - - return 0; - -fail: - log_error_errno(errno, "Failed to read directory: %m"); - return -errno; -} diff --git a/src/journal/coredump-vacuum.h b/src/journal/coredump-vacuum.h deleted file mode 100644 index 7ad4399305..0000000000 --- a/src/journal/coredump-vacuum.h +++ /dev/null @@ -1,26 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <sys/types.h> - -int coredump_vacuum(int exclude_fd, off_t keep_free, off_t max_use); diff --git a/src/journal/coredump.c b/src/journal/coredump.c deleted file mode 100644 index 4e23e487fb..0000000000 --- a/src/journal/coredump.c +++ /dev/null @@ -1,862 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <unistd.h> -#include <stdio.h> -#include <sys/prctl.h> -#include <sys/xattr.h> - -#ifdef HAVE_ELFUTILS -# include <dwarf.h> -# include <elfutils/libdwfl.h> -#endif - -#include "sd-journal.h" -#include "sd-login.h" -#include "log.h" -#include "util.h" -#include "fileio.h" -#include "strv.h" -#include "macro.h" -#include "mkdir.h" -#include "special.h" -#include "cgroup-util.h" -#include "conf-parser.h" -#include "copy.h" -#include "stacktrace.h" -#include "compress.h" -#include "acl-util.h" -#include "capability.h" -#include "journald-native.h" -#include "coredump-vacuum.h" - -/* The maximum size up to which we process coredumps */ -#define PROCESS_SIZE_MAX ((off_t) (2LLU*1024LLU*1024LLU*1024LLU)) - -/* The maximum size up to which we leave the coredump around on - * disk */ -#define EXTERNAL_SIZE_MAX PROCESS_SIZE_MAX - -/* The maximum size up to which we store the coredump in the - * journal */ -#define JOURNAL_SIZE_MAX ((size_t) (767LU*1024LU*1024LU)) - -/* Make sure to not make this larger than the maximum journal entry - * size. See DATA_SIZE_MAX in journald-native.c. */ -assert_cc(JOURNAL_SIZE_MAX <= DATA_SIZE_MAX); - -enum { - INFO_PID, - INFO_UID, - INFO_GID, - INFO_SIGNAL, - INFO_TIMESTAMP, - INFO_COMM, - INFO_EXE, - _INFO_LEN -}; - -typedef enum CoredumpStorage { - COREDUMP_STORAGE_NONE, - COREDUMP_STORAGE_EXTERNAL, - COREDUMP_STORAGE_JOURNAL, - COREDUMP_STORAGE_BOTH, - _COREDUMP_STORAGE_MAX, - _COREDUMP_STORAGE_INVALID = -1 -} CoredumpStorage; - -static const char* const coredump_storage_table[_COREDUMP_STORAGE_MAX] = { - [COREDUMP_STORAGE_NONE] = "none", - [COREDUMP_STORAGE_EXTERNAL] = "external", - [COREDUMP_STORAGE_JOURNAL] = "journal", - [COREDUMP_STORAGE_BOTH] = "both", -}; - -DEFINE_PRIVATE_STRING_TABLE_LOOKUP(coredump_storage, CoredumpStorage); -static DEFINE_CONFIG_PARSE_ENUM(config_parse_coredump_storage, coredump_storage, CoredumpStorage, "Failed to parse storage setting"); - -static CoredumpStorage arg_storage = COREDUMP_STORAGE_EXTERNAL; -static bool arg_compress = true; -static off_t arg_process_size_max = PROCESS_SIZE_MAX; -static off_t arg_external_size_max = EXTERNAL_SIZE_MAX; -static size_t arg_journal_size_max = JOURNAL_SIZE_MAX; -static off_t arg_keep_free = (off_t) -1; -static off_t arg_max_use = (off_t) -1; - -static int parse_config(void) { - static const ConfigTableItem items[] = { - { "Coredump", "Storage", config_parse_coredump_storage, 0, &arg_storage }, - { "Coredump", "Compress", config_parse_bool, 0, &arg_compress }, - { "Coredump", "ProcessSizeMax", config_parse_iec_off, 0, &arg_process_size_max }, - { "Coredump", "ExternalSizeMax", config_parse_iec_off, 0, &arg_external_size_max }, - { "Coredump", "JournalSizeMax", config_parse_iec_size, 0, &arg_journal_size_max }, - { "Coredump", "KeepFree", config_parse_iec_off, 0, &arg_keep_free }, - { "Coredump", "MaxUse", config_parse_iec_off, 0, &arg_max_use }, - {} - }; - - return config_parse_many("/etc/systemd/coredump.conf", - CONF_DIRS_NULSTR("systemd/coredump.conf"), - "Coredump\0", - config_item_table_lookup, items, - false, NULL); -} - -static int fix_acl(int fd, uid_t uid) { - -#ifdef HAVE_ACL - _cleanup_(acl_freep) acl_t acl = NULL; - acl_entry_t entry; - acl_permset_t permset; - - assert(fd >= 0); - - if (uid <= SYSTEM_UID_MAX) - return 0; - - /* Make sure normal users can read (but not write or delete) - * their own coredumps */ - - acl = acl_get_fd(fd); - if (!acl) - return log_error_errno(errno, "Failed to get ACL: %m"); - - if (acl_create_entry(&acl, &entry) < 0 || - acl_set_tag_type(entry, ACL_USER) < 0 || - acl_set_qualifier(entry, &uid) < 0) { - log_error_errno(errno, "Failed to patch ACL: %m"); - return -errno; - } - - if (acl_get_permset(entry, &permset) < 0 || - acl_add_perm(permset, ACL_READ) < 0 || - calc_acl_mask_if_needed(&acl) < 0) { - log_warning_errno(errno, "Failed to patch ACL: %m"); - return -errno; - } - - if (acl_set_fd(fd, acl) < 0) - return log_error_errno(errno, "Failed to apply ACL: %m"); -#endif - - return 0; -} - -static int fix_xattr(int fd, const char *info[_INFO_LEN]) { - - static const char * const xattrs[_INFO_LEN] = { - [INFO_PID] = "user.coredump.pid", - [INFO_UID] = "user.coredump.uid", - [INFO_GID] = "user.coredump.gid", - [INFO_SIGNAL] = "user.coredump.signal", - [INFO_TIMESTAMP] = "user.coredump.timestamp", - [INFO_COMM] = "user.coredump.comm", - [INFO_EXE] = "user.coredump.exe", - }; - - int r = 0; - unsigned i; - - assert(fd >= 0); - - /* Attach some metadata to coredumps via extended - * attributes. Just because we can. */ - - for (i = 0; i < _INFO_LEN; i++) { - int k; - - if (isempty(info[i]) || !xattrs[i]) - continue; - - k = fsetxattr(fd, xattrs[i], info[i], strlen(info[i]), XATTR_CREATE); - if (k < 0 && r == 0) - r = -errno; - } - - return r; -} - -#define filename_escape(s) xescape((s), "./ ") - -static int fix_permissions( - int fd, - const char *filename, - const char *target, - const char *info[_INFO_LEN], - uid_t uid) { - - assert(fd >= 0); - assert(filename); - assert(target); - assert(info); - - /* Ignore errors on these */ - fchmod(fd, 0640); - fix_acl(fd, uid); - fix_xattr(fd, info); - - if (fsync(fd) < 0) - return log_error_errno(errno, "Failed to sync coredump %s: %m", filename); - - if (rename(filename, target) < 0) - return log_error_errno(errno, "Failed to rename coredump %s -> %s: %m", filename, target); - - return 0; -} - -static int maybe_remove_external_coredump(const char *filename, off_t size) { - - /* Returns 1 if might remove, 0 if will not remove, < 0 on error. */ - - if (IN_SET(arg_storage, COREDUMP_STORAGE_EXTERNAL, COREDUMP_STORAGE_BOTH) && - size <= arg_external_size_max) - return 0; - - if (!filename) - return 1; - - if (unlink(filename) < 0 && errno != ENOENT) - return log_error_errno(errno, "Failed to unlink %s: %m", filename); - - return 1; -} - -static int make_filename(const char *info[_INFO_LEN], char **ret) { - _cleanup_free_ char *c = NULL, *u = NULL, *p = NULL, *t = NULL; - sd_id128_t boot = {}; - int r; - - assert(info); - - c = filename_escape(info[INFO_COMM]); - if (!c) - return -ENOMEM; - - u = filename_escape(info[INFO_UID]); - if (!u) - return -ENOMEM; - - r = sd_id128_get_boot(&boot); - if (r < 0) - return r; - - p = filename_escape(info[INFO_PID]); - if (!p) - return -ENOMEM; - - t = filename_escape(info[INFO_TIMESTAMP]); - if (!t) - return -ENOMEM; - - if (asprintf(ret, - "/var/lib/systemd/coredump/core.%s.%s." SD_ID128_FORMAT_STR ".%s.%s000000", - c, - u, - SD_ID128_FORMAT_VAL(boot), - p, - t) < 0) - return -ENOMEM; - - return 0; -} - -static int save_external_coredump( - const char *info[_INFO_LEN], - uid_t uid, - char **ret_filename, - int *ret_fd, - off_t *ret_size) { - - _cleanup_free_ char *fn = NULL, *tmp = NULL; - _cleanup_close_ int fd = -1; - struct stat st; - int r; - - assert(info); - assert(ret_filename); - assert(ret_fd); - assert(ret_size); - - r = make_filename(info, &fn); - if (r < 0) - return log_error_errno(r, "Failed to determine coredump file name: %m"); - - r = tempfn_random(fn, &tmp); - if (r < 0) - return log_error_errno(r, "Failed to determine temporary file name: %m"); - - mkdir_p_label("/var/lib/systemd/coredump", 0755); - - fd = open(tmp, O_CREAT|O_EXCL|O_RDWR|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW, 0640); - if (fd < 0) - return log_error_errno(errno, "Failed to create coredump file %s: %m", tmp); - - r = copy_bytes(STDIN_FILENO, fd, arg_process_size_max, false); - if (r == -EFBIG) { - log_error("Coredump of %s (%s) is larger than configured processing limit, refusing.", info[INFO_PID], info[INFO_COMM]); - goto fail; - } else if (IN_SET(r, -EDQUOT, -ENOSPC)) { - log_error("Not enough disk space for coredump of %s (%s), refusing.", info[INFO_PID], info[INFO_COMM]); - goto fail; - } else if (r < 0) { - log_error_errno(r, "Failed to dump coredump to file: %m"); - goto fail; - } - - if (fstat(fd, &st) < 0) { - log_error_errno(errno, "Failed to fstat coredump %s: %m", tmp); - goto fail; - } - - if (lseek(fd, 0, SEEK_SET) == (off_t) -1) { - log_error_errno(errno, "Failed to seek on %s: %m", tmp); - goto fail; - } - -#if defined(HAVE_XZ) || defined(HAVE_LZ4) - /* If we will remove the coredump anyway, do not compress. */ - if (maybe_remove_external_coredump(NULL, st.st_size) == 0 - && arg_compress) { - - _cleanup_free_ char *fn_compressed = NULL, *tmp_compressed = NULL; - _cleanup_close_ int fd_compressed = -1; - - fn_compressed = strappend(fn, COMPRESSED_EXT); - if (!fn_compressed) { - log_oom(); - goto uncompressed; - } - - r = tempfn_random(fn_compressed, &tmp_compressed); - if (r < 0) { - log_error_errno(r, "Failed to determine temporary file name for %s: %m", fn_compressed); - goto uncompressed; - } - - fd_compressed = open(tmp_compressed, O_CREAT|O_EXCL|O_RDWR|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW, 0640); - if (fd_compressed < 0) { - log_error_errno(errno, "Failed to create file %s: %m", tmp_compressed); - goto uncompressed; - } - - r = compress_stream(fd, fd_compressed, -1); - if (r < 0) { - log_error_errno(r, "Failed to compress %s: %m", tmp_compressed); - goto fail_compressed; - } - - r = fix_permissions(fd_compressed, tmp_compressed, fn_compressed, info, uid); - if (r < 0) - goto fail_compressed; - - /* OK, this worked, we can get rid of the uncompressed version now */ - unlink_noerrno(tmp); - - *ret_filename = fn_compressed; /* compressed */ - *ret_fd = fd; /* uncompressed */ - *ret_size = st.st_size; /* uncompressed */ - - fn_compressed = NULL; - fd = -1; - - return 0; - - fail_compressed: - unlink_noerrno(tmp_compressed); - } - -uncompressed: -#endif - r = fix_permissions(fd, tmp, fn, info, uid); - if (r < 0) - goto fail; - - *ret_filename = fn; - *ret_fd = fd; - *ret_size = st.st_size; - - fn = NULL; - fd = -1; - - return 0; - -fail: - unlink_noerrno(tmp); - return r; -} - -static int allocate_journal_field(int fd, size_t size, char **ret, size_t *ret_size) { - _cleanup_free_ char *field = NULL; - ssize_t n; - - assert(fd >= 0); - assert(ret); - assert(ret_size); - - if (lseek(fd, 0, SEEK_SET) == (off_t) -1) - return log_warning_errno(errno, "Failed to seek: %m"); - - field = malloc(9 + size); - if (!field) { - log_warning("Failed to allocate memory for coredump, coredump will not be stored."); - return -ENOMEM; - } - - memcpy(field, "COREDUMP=", 9); - - n = read(fd, field + 9, size); - if (n < 0) - return log_error_errno((int) n, "Failed to read core data: %m"); - if ((size_t) n < size) { - log_error("Core data too short."); - return -EIO; - } - - *ret = field; - *ret_size = size + 9; - - field = NULL; - - return 0; -} - -/* Joins /proc/[pid]/fd/ and /proc/[pid]/fdinfo/ into the following lines: - * 0:/dev/pts/23 - * pos: 0 - * flags: 0100002 - * - * 1:/dev/pts/23 - * pos: 0 - * flags: 0100002 - * - * 2:/dev/pts/23 - * pos: 0 - * flags: 0100002 - * EOF - */ -static int compose_open_fds(pid_t pid, char **open_fds) { - _cleanup_closedir_ DIR *proc_fd_dir = NULL; - _cleanup_close_ int proc_fdinfo_fd = -1; - _cleanup_free_ char *buffer = NULL; - _cleanup_fclose_ FILE *stream = NULL; - const char *fddelim = "", *path; - struct dirent *dent = NULL; - size_t size = 0; - int r = 0; - - assert(pid >= 0); - assert(open_fds != NULL); - - path = procfs_file_alloca(pid, "fd"); - proc_fd_dir = opendir(path); - if (!proc_fd_dir) - return -errno; - - proc_fdinfo_fd = openat(dirfd(proc_fd_dir), "../fdinfo", O_DIRECTORY|O_NOFOLLOW|O_CLOEXEC|O_PATH); - if (proc_fdinfo_fd < 0) - return -errno; - - stream = open_memstream(&buffer, &size); - if (!stream) - return -ENOMEM; - - FOREACH_DIRENT(dent, proc_fd_dir, return -errno) { - _cleanup_fclose_ FILE *fdinfo = NULL; - _cleanup_free_ char *fdname = NULL; - char line[LINE_MAX]; - int fd; - - r = readlinkat_malloc(dirfd(proc_fd_dir), dent->d_name, &fdname); - if (r < 0) - return r; - - fprintf(stream, "%s%s:%s\n", fddelim, dent->d_name, fdname); - fddelim = "\n"; - - /* Use the directory entry from /proc/[pid]/fd with /proc/[pid]/fdinfo */ - fd = openat(proc_fdinfo_fd, dent->d_name, O_NOFOLLOW|O_CLOEXEC|O_RDONLY); - if (fd < 0) - continue; - - fdinfo = fdopen(fd, "re"); - if (fdinfo == NULL) { - close(fd); - continue; - } - - FOREACH_LINE(line, fdinfo, break) { - fputs(line, stream); - if (!endswith(line, "\n")) - fputc('\n', stream); - } - } - - errno = 0; - fclose(stream); - stream = NULL; - - if (errno != 0) - return -errno; - - *open_fds = buffer; - buffer = NULL; - - return 0; -} - -int main(int argc, char* argv[]) { - - /* The small core field we allocate on the stack, to keep things simple */ - char - *core_pid = NULL, *core_uid = NULL, *core_gid = NULL, *core_signal = NULL, - *core_session = NULL, *core_exe = NULL, *core_comm = NULL, *core_cmdline = NULL, - *core_cgroup = NULL, *core_cwd = NULL, *core_root = NULL, *core_unit = NULL, - *core_slice = NULL; - - /* The larger ones we allocate on the heap */ - _cleanup_free_ char - *core_timestamp = NULL, *core_message = NULL, *coredump_data = NULL, *core_owner_uid = NULL, - *core_open_fds = NULL, *core_proc_status = NULL, *core_proc_maps = NULL, *core_proc_limits = NULL, - *core_proc_cgroup = NULL, *core_environ = NULL; - - _cleanup_free_ char *exe = NULL, *comm = NULL, *filename = NULL; - const char *info[_INFO_LEN]; - - _cleanup_close_ int coredump_fd = -1; - - struct iovec iovec[26]; - off_t coredump_size; - int r, j = 0; - uid_t uid, owner_uid; - gid_t gid; - pid_t pid; - char *t; - const char *p; - - /* Make sure we never enter a loop */ - prctl(PR_SET_DUMPABLE, 0); - - /* First, log to a safe place, since we don't know what - * crashed and it might be journald which we'd rather not log - * to then. */ - log_set_target(LOG_TARGET_KMSG); - log_open(); - - if (argc < INFO_COMM + 1) { - log_error("Not enough arguments passed from kernel (%d, expected %d).", - argc - 1, INFO_COMM + 1 - 1); - r = -EINVAL; - goto finish; - } - - /* Ignore all parse errors */ - parse_config(); - - log_debug("Selected storage '%s'.", coredump_storage_to_string(arg_storage)); - log_debug("Selected compression %s.", yes_no(arg_compress)); - - r = parse_uid(argv[INFO_UID + 1], &uid); - if (r < 0) { - log_error("Failed to parse UID."); - goto finish; - } - - r = parse_pid(argv[INFO_PID + 1], &pid); - if (r < 0) { - log_error("Failed to parse PID."); - goto finish; - } - - r = parse_gid(argv[INFO_GID + 1], &gid); - if (r < 0) { - log_error("Failed to parse GID."); - goto finish; - } - - if (get_process_comm(pid, &comm) < 0) { - log_warning("Failed to get COMM, falling back to the command line."); - comm = strv_join(argv + INFO_COMM + 1, " "); - } - - if (get_process_exe(pid, &exe) < 0) - log_warning("Failed to get EXE."); - - info[INFO_PID] = argv[INFO_PID + 1]; - info[INFO_UID] = argv[INFO_UID + 1]; - info[INFO_GID] = argv[INFO_GID + 1]; - info[INFO_SIGNAL] = argv[INFO_SIGNAL + 1]; - info[INFO_TIMESTAMP] = argv[INFO_TIMESTAMP + 1]; - info[INFO_COMM] = comm; - info[INFO_EXE] = exe; - - if (cg_pid_get_unit(pid, &t) >= 0) { - - if (streq(t, SPECIAL_JOURNALD_SERVICE)) { - free(t); - - /* If we are journald, we cut things short, - * don't write to the journal, but still - * create a coredump. */ - - if (arg_storage != COREDUMP_STORAGE_NONE) - arg_storage = COREDUMP_STORAGE_EXTERNAL; - - r = save_external_coredump(info, uid, &filename, &coredump_fd, &coredump_size); - if (r < 0) - goto finish; - - r = maybe_remove_external_coredump(filename, coredump_size); - if (r < 0) - goto finish; - - log_info("Detected coredump of the journal daemon itself, diverted to %s.", filename); - goto finish; - } - - core_unit = strjoina("COREDUMP_UNIT=", t); - free(t); - - } else if (cg_pid_get_user_unit(pid, &t) >= 0) { - core_unit = strjoina("COREDUMP_USER_UNIT=", t); - free(t); - } - - if (core_unit) - IOVEC_SET_STRING(iovec[j++], core_unit); - - /* OK, now we know it's not the journal, hence we can make use - * of it now. */ - log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); - log_open(); - - core_pid = strjoina("COREDUMP_PID=", info[INFO_PID]); - IOVEC_SET_STRING(iovec[j++], core_pid); - - core_uid = strjoina("COREDUMP_UID=", info[INFO_UID]); - IOVEC_SET_STRING(iovec[j++], core_uid); - - core_gid = strjoina("COREDUMP_GID=", info[INFO_GID]); - IOVEC_SET_STRING(iovec[j++], core_gid); - - core_signal = strjoina("COREDUMP_SIGNAL=", info[INFO_SIGNAL]); - IOVEC_SET_STRING(iovec[j++], core_signal); - - if (sd_pid_get_session(pid, &t) >= 0) { - core_session = strjoina("COREDUMP_SESSION=", t); - free(t); - - IOVEC_SET_STRING(iovec[j++], core_session); - } - - if (sd_pid_get_owner_uid(pid, &owner_uid) >= 0) { - r = asprintf(&core_owner_uid, - "COREDUMP_OWNER_UID=" UID_FMT, owner_uid); - if (r > 0) - IOVEC_SET_STRING(iovec[j++], core_owner_uid); - } - - if (sd_pid_get_slice(pid, &t) >= 0) { - core_slice = strjoina("COREDUMP_SLICE=", t); - free(t); - - IOVEC_SET_STRING(iovec[j++], core_slice); - } - - if (comm) { - core_comm = strjoina("COREDUMP_COMM=", comm); - IOVEC_SET_STRING(iovec[j++], core_comm); - } - - if (exe) { - core_exe = strjoina("COREDUMP_EXE=", exe); - IOVEC_SET_STRING(iovec[j++], core_exe); - } - - if (get_process_cmdline(pid, 0, false, &t) >= 0) { - core_cmdline = strjoina("COREDUMP_CMDLINE=", t); - free(t); - - IOVEC_SET_STRING(iovec[j++], core_cmdline); - } - - if (cg_pid_get_path_shifted(pid, NULL, &t) >= 0) { - core_cgroup = strjoina("COREDUMP_CGROUP=", t); - free(t); - - IOVEC_SET_STRING(iovec[j++], core_cgroup); - } - - if (compose_open_fds(pid, &t) >= 0) { - core_open_fds = strappend("COREDUMP_OPEN_FDS=", t); - free(t); - - if (core_open_fds) - IOVEC_SET_STRING(iovec[j++], core_open_fds); - } - - p = procfs_file_alloca(pid, "status"); - if (read_full_file(p, &t, NULL) >= 0) { - core_proc_status = strappend("COREDUMP_PROC_STATUS=", t); - free(t); - - if (core_proc_status) - IOVEC_SET_STRING(iovec[j++], core_proc_status); - } - - p = procfs_file_alloca(pid, "maps"); - if (read_full_file(p, &t, NULL) >= 0) { - core_proc_maps = strappend("COREDUMP_PROC_MAPS=", t); - free(t); - - if (core_proc_maps) - IOVEC_SET_STRING(iovec[j++], core_proc_maps); - } - - p = procfs_file_alloca(pid, "limits"); - if (read_full_file(p, &t, NULL) >= 0) { - core_proc_limits = strappend("COREDUMP_PROC_LIMITS=", t); - free(t); - - if (core_proc_limits) - IOVEC_SET_STRING(iovec[j++], core_proc_limits); - } - - p = procfs_file_alloca(pid, "cgroup"); - if (read_full_file(p, &t, NULL) >=0) { - core_proc_cgroup = strappend("COREDUMP_PROC_CGROUP=", t); - free(t); - - if (core_proc_cgroup) - IOVEC_SET_STRING(iovec[j++], core_proc_cgroup); - } - - if (get_process_cwd(pid, &t) >= 0) { - core_cwd = strjoina("COREDUMP_CWD=", t); - free(t); - - IOVEC_SET_STRING(iovec[j++], core_cwd); - } - - if (get_process_root(pid, &t) >= 0) { - core_root = strjoina("COREDUMP_ROOT=", t); - free(t); - - IOVEC_SET_STRING(iovec[j++], core_root); - } - - if (get_process_environ(pid, &t) >= 0) { - core_environ = strappend("COREDUMP_ENVIRON=", t); - free(t); - - if (core_environ) - IOVEC_SET_STRING(iovec[j++], core_environ); - } - - core_timestamp = strjoin("COREDUMP_TIMESTAMP=", info[INFO_TIMESTAMP], "000000", NULL); - if (core_timestamp) - IOVEC_SET_STRING(iovec[j++], core_timestamp); - - IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1"); - IOVEC_SET_STRING(iovec[j++], "PRIORITY=2"); - - /* Vacuum before we write anything again */ - coredump_vacuum(-1, arg_keep_free, arg_max_use); - - /* Always stream the coredump to disk, if that's possible */ - r = save_external_coredump(info, uid, &filename, &coredump_fd, &coredump_size); - if (r < 0) - /* skip whole core dumping part */ - goto log; - - /* If we don't want to keep the coredump on disk, remove it - * now, as later on we will lack the privileges for - * it. However, we keep the fd to it, so that we can still - * process it and log it. */ - r = maybe_remove_external_coredump(filename, coredump_size); - if (r < 0) - goto finish; - if (r == 0) { - const char *coredump_filename; - - coredump_filename = strjoina("COREDUMP_FILENAME=", filename); - IOVEC_SET_STRING(iovec[j++], coredump_filename); - } - - /* Vacuum again, but exclude the coredump we just created */ - coredump_vacuum(coredump_fd, arg_keep_free, arg_max_use); - - /* Now, let's drop privileges to become the user who owns the - * segfaulted process and allocate the coredump memory under - * the user's uid. This also ensures that the credentials - * journald will see are the ones of the coredumping user, - * thus making sure the user gets access to the core - * dump. Let's also get rid of all capabilities, if we run as - * root, we won't need them anymore. */ - r = drop_privileges(uid, gid, 0); - if (r < 0) { - log_error_errno(r, "Failed to drop privileges: %m"); - goto finish; - } - -#ifdef HAVE_ELFUTILS - /* Try to get a strack trace if we can */ - if (coredump_size <= arg_process_size_max) { - _cleanup_free_ char *stacktrace = NULL; - - r = coredump_make_stack_trace(coredump_fd, exe, &stacktrace); - if (r >= 0) - core_message = strjoin("MESSAGE=Process ", info[INFO_PID], " (", comm, ") of user ", info[INFO_UID], " dumped core.\n\n", stacktrace, NULL); - else if (r == -EINVAL) - log_warning("Failed to generate stack trace: %s", dwfl_errmsg(dwfl_errno())); - else - log_warning_errno(r, "Failed to generate stack trace: %m"); - } - - if (!core_message) -#endif -log: - core_message = strjoin("MESSAGE=Process ", info[INFO_PID], " (", comm, ") of user ", info[INFO_UID], " dumped core.", NULL); - if (core_message) - IOVEC_SET_STRING(iovec[j++], core_message); - - /* Optionally store the entire coredump in the journal */ - if (IN_SET(arg_storage, COREDUMP_STORAGE_JOURNAL, COREDUMP_STORAGE_BOTH) && - coredump_size <= (off_t) arg_journal_size_max) { - size_t sz = 0; - - /* Store the coredump itself in the journal */ - - r = allocate_journal_field(coredump_fd, (size_t) coredump_size, &coredump_data, &sz); - if (r >= 0) { - iovec[j].iov_base = coredump_data; - iovec[j].iov_len = sz; - j++; - } - } - - r = sd_journal_sendv(iovec, j); - if (r < 0) - log_error_errno(r, "Failed to log coredump: %m"); - -finish: - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} diff --git a/src/journal/coredump.conf b/src/journal/coredump.conf deleted file mode 100644 index c2f0643e03..0000000000 --- a/src/journal/coredump.conf +++ /dev/null @@ -1,21 +0,0 @@ -# This file is part of systemd. -# -# systemd is free software; you can redistribute it and/or modify it -# under the terms of the GNU Lesser General Public License as published by -# the Free Software Foundation; either version 2.1 of the License, or -# (at your option) any later version. -# -# Entries in this file show the compile time defaults. -# You can change settings by editing this file. -# Defaults can be restored by simply deleting this file. -# -# See coredump.conf(5) for details. - -[Coredump] -#Storage=external -#Compress=yes -#ProcessSizeMax=2G -#ExternalSizeMax=2G -#JournalSizeMax=767M -#MaxUse= -#KeepFree= diff --git a/src/journal/coredumpctl.c b/src/journal/coredumpctl.c deleted file mode 100644 index 4026a1c26f..0000000000 --- a/src/journal/coredumpctl.c +++ /dev/null @@ -1,860 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Zbigniew JÄ™drzejewski-Szmek - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <locale.h> -#include <stdio.h> -#include <string.h> -#include <getopt.h> -#include <fcntl.h> -#include <unistd.h> - -#include "sd-journal.h" -#include "build.h" -#include "set.h" -#include "util.h" -#include "log.h" -#include "path-util.h" -#include "pager.h" -#include "macro.h" -#include "journal-internal.h" -#include "compress.h" -#include "sigbus.h" - -static enum { - ACTION_NONE, - ACTION_INFO, - ACTION_LIST, - ACTION_DUMP, - ACTION_GDB, -} arg_action = ACTION_LIST; -static const char* arg_field = NULL; -static int arg_no_pager = false; -static int arg_no_legend = false; -static int arg_one = false; -static FILE* arg_output = NULL; - -static Set *new_matches(void) { - Set *set; - char *tmp; - int r; - - set = set_new(NULL); - if (!set) { - log_oom(); - return NULL; - } - - tmp = strdup("MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1"); - if (!tmp) { - log_oom(); - set_free(set); - return NULL; - } - - r = set_consume(set, tmp); - if (r < 0) { - log_error_errno(r, "failed to add to set: %m"); - set_free(set); - return NULL; - } - - return set; -} - -static int add_match(Set *set, const char *match) { - int r = -ENOMEM; - unsigned pid; - const char* prefix; - char *pattern = NULL; - _cleanup_free_ char *p = NULL; - - if (strchr(match, '=')) - prefix = ""; - else if (strchr(match, '/')) { - p = path_make_absolute_cwd(match); - if (!p) - goto fail; - - match = p; - prefix = "COREDUMP_EXE="; - } - else if (safe_atou(match, &pid) == 0) - prefix = "COREDUMP_PID="; - else - prefix = "COREDUMP_COMM="; - - pattern = strjoin(prefix, match, NULL); - if (!pattern) - goto fail; - - log_debug("Adding pattern: %s", pattern); - r = set_consume(set, pattern); - if (r < 0) { - log_error_errno(r, "Failed to add pattern: %m"); - goto fail; - } - - return 0; -fail: - return log_error_errno(r, "Failed to add match: %m"); -} - -static void help(void) { - printf("%s [OPTIONS...]\n\n" - "List or retrieve coredumps from the journal.\n\n" - "Flags:\n" - " -h --help Show this help\n" - " --version Print version string\n" - " --no-pager Do not pipe output into a pager\n" - " --no-legend Do not print the column headers.\n" - " -1 Show information about most recent entry only\n" - " -F --field=FIELD List all values a certain field takes\n" - " -o --output=FILE Write output to FILE\n\n" - - "Commands:\n" - " list [MATCHES...] List available coredumps (default)\n" - " info [MATCHES...] Show detailed information about one or more coredumps\n" - " dump [MATCHES...] Print first matching coredump to stdout\n" - " gdb [MATCHES...] Start gdb for the first matching coredump\n" - , program_invocation_short_name); -} - -static int parse_argv(int argc, char *argv[], Set *matches) { - enum { - ARG_VERSION = 0x100, - ARG_NO_PAGER, - ARG_NO_LEGEND, - }; - - int r, c; - - static const struct option options[] = { - { "help", no_argument, NULL, 'h' }, - { "version" , no_argument, NULL, ARG_VERSION }, - { "no-pager", no_argument, NULL, ARG_NO_PAGER }, - { "no-legend", no_argument, NULL, ARG_NO_LEGEND }, - { "output", required_argument, NULL, 'o' }, - { "field", required_argument, NULL, 'F' }, - {} - }; - - assert(argc >= 0); - assert(argv); - - while ((c = getopt_long(argc, argv, "ho:F:1", options, NULL)) >= 0) - switch(c) { - - case 'h': - arg_action = ACTION_NONE; - help(); - return 0; - - case ARG_VERSION: - arg_action = ACTION_NONE; - puts(PACKAGE_STRING); - puts(SYSTEMD_FEATURES); - return 0; - - case ARG_NO_PAGER: - arg_no_pager = true; - break; - - case ARG_NO_LEGEND: - arg_no_legend = true; - break; - - case 'o': - if (arg_output) { - log_error("cannot set output more than once"); - return -EINVAL; - } - - arg_output = fopen(optarg, "we"); - if (!arg_output) - return log_error_errno(errno, "writing to '%s': %m", optarg); - - break; - - case 'F': - if (arg_field) { - log_error("cannot use --field/-F more than once"); - return -EINVAL; - } - arg_field = optarg; - break; - - case '1': - arg_one = true; - break; - - case '?': - return -EINVAL; - - default: - assert_not_reached("Unhandled option"); - } - - if (optind < argc) { - const char *cmd = argv[optind++]; - if (streq(cmd, "list")) - arg_action = ACTION_LIST; - else if (streq(cmd, "dump")) - arg_action = ACTION_DUMP; - else if (streq(cmd, "gdb")) - arg_action = ACTION_GDB; - else if (streq(cmd, "info")) - arg_action = ACTION_INFO; - else { - log_error("Unknown action '%s'", cmd); - return -EINVAL; - } - } - - if (arg_field && arg_action != ACTION_LIST) { - log_error("Option --field/-F only makes sense with list"); - return -EINVAL; - } - - while (optind < argc) { - r = add_match(matches, argv[optind]); - if (r != 0) - return r; - optind++; - } - - return 0; -} - -static int retrieve(const void *data, - size_t len, - const char *name, - char **var) { - - size_t ident; - char *v; - - ident = strlen(name) + 1; /* name + "=" */ - - if (len < ident) - return 0; - - if (memcmp(data, name, ident - 1) != 0) - return 0; - - if (((const char*) data)[ident - 1] != '=') - return 0; - - v = strndup((const char*)data + ident, len - ident); - if (!v) - return log_oom(); - - free(*var); - *var = v; - - return 0; -} - -static void print_field(FILE* file, sd_journal *j) { - _cleanup_free_ char *value = NULL; - const void *d; - size_t l; - - assert(file); - assert(j); - - assert(arg_field); - - SD_JOURNAL_FOREACH_DATA(j, d, l) - retrieve(d, l, arg_field, &value); - - if (value) - fprintf(file, "%s\n", value); -} - -static int print_list(FILE* file, sd_journal *j, int had_legend) { - _cleanup_free_ char - *pid = NULL, *uid = NULL, *gid = NULL, - *sgnl = NULL, *exe = NULL, *comm = NULL, *cmdline = NULL, - *filename = NULL; - const void *d; - size_t l; - usec_t t; - char buf[FORMAT_TIMESTAMP_MAX]; - int r; - bool present; - - assert(file); - assert(j); - - SD_JOURNAL_FOREACH_DATA(j, d, l) { - retrieve(d, l, "COREDUMP_PID", &pid); - retrieve(d, l, "COREDUMP_UID", &uid); - retrieve(d, l, "COREDUMP_GID", &gid); - retrieve(d, l, "COREDUMP_SIGNAL", &sgnl); - retrieve(d, l, "COREDUMP_EXE", &exe); - retrieve(d, l, "COREDUMP_COMM", &comm); - retrieve(d, l, "COREDUMP_CMDLINE", &cmdline); - retrieve(d, l, "COREDUMP_FILENAME", &filename); - } - - if (!pid && !uid && !gid && !sgnl && !exe && !comm && !cmdline && !filename) { - log_warning("Empty coredump log entry"); - return -EINVAL; - } - - r = sd_journal_get_realtime_usec(j, &t); - if (r < 0) - return log_error_errno(r, "Failed to get realtime timestamp: %m"); - - format_timestamp(buf, sizeof(buf), t); - present = filename && access(filename, F_OK) == 0; - - if (!had_legend && !arg_no_legend) - fprintf(file, "%-*s %*s %*s %*s %*s %*s %s\n", - FORMAT_TIMESTAMP_WIDTH, "TIME", - 6, "PID", - 5, "UID", - 5, "GID", - 3, "SIG", - 1, "PRESENT", - "EXE"); - - fprintf(file, "%-*s %*s %*s %*s %*s %*s %s\n", - FORMAT_TIMESTAMP_WIDTH, buf, - 6, strna(pid), - 5, strna(uid), - 5, strna(gid), - 3, strna(sgnl), - 1, present ? "*" : "", - strna(exe ?: (comm ?: cmdline))); - - return 0; -} - -static int print_info(FILE *file, sd_journal *j, bool need_space) { - _cleanup_free_ char - *pid = NULL, *uid = NULL, *gid = NULL, - *sgnl = NULL, *exe = NULL, *comm = NULL, *cmdline = NULL, - *unit = NULL, *user_unit = NULL, *session = NULL, - *boot_id = NULL, *machine_id = NULL, *hostname = NULL, - *slice = NULL, *cgroup = NULL, *owner_uid = NULL, - *message = NULL, *timestamp = NULL, *filename = NULL; - const void *d; - size_t l; - int r; - - assert(file); - assert(j); - - SD_JOURNAL_FOREACH_DATA(j, d, l) { - retrieve(d, l, "COREDUMP_PID", &pid); - retrieve(d, l, "COREDUMP_UID", &uid); - retrieve(d, l, "COREDUMP_GID", &gid); - retrieve(d, l, "COREDUMP_SIGNAL", &sgnl); - retrieve(d, l, "COREDUMP_EXE", &exe); - retrieve(d, l, "COREDUMP_COMM", &comm); - retrieve(d, l, "COREDUMP_CMDLINE", &cmdline); - retrieve(d, l, "COREDUMP_UNIT", &unit); - retrieve(d, l, "COREDUMP_USER_UNIT", &user_unit); - retrieve(d, l, "COREDUMP_SESSION", &session); - retrieve(d, l, "COREDUMP_OWNER_UID", &owner_uid); - retrieve(d, l, "COREDUMP_SLICE", &slice); - retrieve(d, l, "COREDUMP_CGROUP", &cgroup); - retrieve(d, l, "COREDUMP_TIMESTAMP", ×tamp); - retrieve(d, l, "COREDUMP_FILENAME", &filename); - retrieve(d, l, "_BOOT_ID", &boot_id); - retrieve(d, l, "_MACHINE_ID", &machine_id); - retrieve(d, l, "_HOSTNAME", &hostname); - retrieve(d, l, "MESSAGE", &message); - } - - if (need_space) - fputs("\n", file); - - if (comm) - fprintf(file, - " PID: %s%s%s (%s)\n", - ansi_highlight(), strna(pid), ansi_highlight_off(), comm); - else - fprintf(file, - " PID: %s%s%s\n", - ansi_highlight(), strna(pid), ansi_highlight_off()); - - if (uid) { - uid_t n; - - if (parse_uid(uid, &n) >= 0) { - _cleanup_free_ char *u = NULL; - - u = uid_to_name(n); - fprintf(file, - " UID: %s (%s)\n", - uid, u); - } else { - fprintf(file, - " UID: %s\n", - uid); - } - } - - if (gid) { - gid_t n; - - if (parse_gid(gid, &n) >= 0) { - _cleanup_free_ char *g = NULL; - - g = gid_to_name(n); - fprintf(file, - " GID: %s (%s)\n", - gid, g); - } else { - fprintf(file, - " GID: %s\n", - gid); - } - } - - if (sgnl) { - int sig; - - if (safe_atoi(sgnl, &sig) >= 0) - fprintf(file, " Signal: %s (%s)\n", sgnl, signal_to_string(sig)); - else - fprintf(file, " Signal: %s\n", sgnl); - } - - if (timestamp) { - usec_t u; - - r = safe_atou64(timestamp, &u); - if (r >= 0) { - char absolute[FORMAT_TIMESTAMP_MAX], relative[FORMAT_TIMESPAN_MAX]; - - fprintf(file, - " Timestamp: %s (%s)\n", - format_timestamp(absolute, sizeof(absolute), u), - format_timestamp_relative(relative, sizeof(relative), u)); - - } else - fprintf(file, " Timestamp: %s\n", timestamp); - } - - if (cmdline) - fprintf(file, " Command Line: %s\n", cmdline); - if (exe) - fprintf(file, " Executable: %s%s%s\n", ansi_highlight(), exe, ansi_highlight_off()); - if (cgroup) - fprintf(file, " Control Group: %s\n", cgroup); - if (unit) - fprintf(file, " Unit: %s\n", unit); - if (user_unit) - fprintf(file, " User Unit: %s\n", unit); - if (slice) - fprintf(file, " Slice: %s\n", slice); - if (session) - fprintf(file, " Session: %s\n", session); - if (owner_uid) { - uid_t n; - - if (parse_uid(owner_uid, &n) >= 0) { - _cleanup_free_ char *u = NULL; - - u = uid_to_name(n); - fprintf(file, - " Owner UID: %s (%s)\n", - owner_uid, u); - } else { - fprintf(file, - " Owner UID: %s\n", - owner_uid); - } - } - if (boot_id) - fprintf(file, " Boot ID: %s\n", boot_id); - if (machine_id) - fprintf(file, " Machine ID: %s\n", machine_id); - if (hostname) - fprintf(file, " Hostname: %s\n", hostname); - - if (filename && access(filename, F_OK) == 0) - fprintf(file, " Coredump: %s\n", filename); - - if (message) { - _cleanup_free_ char *m = NULL; - - m = strreplace(message, "\n", "\n "); - - fprintf(file, " Message: %s\n", strstrip(m ?: message)); - } - - return 0; -} - -static int focus(sd_journal *j) { - int r; - - r = sd_journal_seek_tail(j); - if (r == 0) - r = sd_journal_previous(j); - if (r < 0) - return log_error_errno(r, "Failed to search journal: %m"); - if (r == 0) { - log_error("No match found."); - return -ESRCH; - } - return r; -} - -static void print_entry(sd_journal *j, unsigned n_found) { - assert(j); - - if (arg_action == ACTION_INFO) - print_info(stdout, j, n_found); - else if (arg_field) - print_field(stdout, j); - else - print_list(stdout, j, n_found); -} - -static int dump_list(sd_journal *j) { - unsigned n_found = 0; - int r; - - assert(j); - - /* The coredumps are likely to compressed, and for just - * listing them we don't need to decompress them, so let's - * pick a fairly low data threshold here */ - sd_journal_set_data_threshold(j, 4096); - - if (arg_one) { - r = focus(j); - if (r < 0) - return r; - - print_entry(j, 0); - } else { - SD_JOURNAL_FOREACH(j) - print_entry(j, n_found++); - - if (!arg_field && n_found <= 0) { - log_notice("No coredumps found."); - return -ESRCH; - } - } - - return 0; -} - -static int save_core(sd_journal *j, int fd, char **path, bool *unlink_temp) { - const char *data; - _cleanup_free_ char *filename = NULL; - size_t len; - int r; - - assert((fd >= 0) != !!path); - assert(!!path == !!unlink_temp); - - /* Prefer uncompressed file to journal (probably cached) to - * compressed file (probably uncached). */ - r = sd_journal_get_data(j, "COREDUMP_FILENAME", (const void**) &data, &len); - if (r < 0 && r != -ENOENT) - log_warning_errno(r, "Failed to retrieve COREDUMP_FILENAME: %m"); - else if (r == 0) - retrieve(data, len, "COREDUMP_FILENAME", &filename); - - if (filename && access(filename, R_OK) < 0) { - log_full(errno == ENOENT ? LOG_DEBUG : LOG_WARNING, - "File %s is not readable: %m", filename); - free(filename); - filename = NULL; - } - - if (filename && !endswith(filename, ".xz") && !endswith(filename, ".lz4")) { - if (path) { - *path = filename; - filename = NULL; - } - - return 0; - } else { - _cleanup_close_ int fdt = -1; - char *temp = NULL; - - if (fd < 0) { - temp = strdup("/var/tmp/coredump-XXXXXX"); - if (!temp) - return log_oom(); - - fdt = mkostemp_safe(temp, O_WRONLY|O_CLOEXEC); - if (fdt < 0) - return log_error_errno(errno, "Failed to create temporary file: %m"); - log_debug("Created temporary file %s", temp); - - fd = fdt; - } - - r = sd_journal_get_data(j, "COREDUMP", (const void**) &data, &len); - if (r == 0) { - ssize_t sz; - - assert(len >= 9); - data += 9; - len -= 9; - - sz = write(fdt, data, len); - if (sz < 0) { - log_error_errno(errno, "Failed to write temporary file: %m"); - r = -errno; - goto error; - } - if (sz != (ssize_t) len) { - log_error("Short write to temporary file."); - r = -EIO; - goto error; - } - } else if (filename) { -#if defined(HAVE_XZ) || defined(HAVE_LZ4) - _cleanup_close_ int fdf; - - fdf = open(filename, O_RDONLY | O_CLOEXEC); - if (fdf < 0) { - log_error_errno(errno, "Failed to open %s: %m", filename); - r = -errno; - goto error; - } - - r = decompress_stream(filename, fdf, fd, -1); - if (r < 0) { - log_error_errno(r, "Failed to decompress %s: %m", filename); - goto error; - } -#else - log_error("Cannot decompress file. Compiled without compression support."); - r = -EOPNOTSUPP; - goto error; -#endif - } else { - if (r == -ENOENT) - log_error("Cannot retrieve coredump from journal nor disk."); - else - log_error_errno(r, "Failed to retrieve COREDUMP field: %m"); - goto error; - } - - if (temp) { - *path = temp; - *unlink_temp = true; - } - - return 0; - -error: - if (temp) { - unlink(temp); - log_debug("Removed temporary file %s", temp); - } - return r; - } -} - -static int dump_core(sd_journal* j) { - int r; - - assert(j); - - r = focus(j); - if (r < 0) - return r; - - print_info(arg_output ? stdout : stderr, j, false); - - if (on_tty() && !arg_output) { - log_error("Refusing to dump core to tty."); - return -ENOTTY; - } - - r = save_core(j, arg_output ? fileno(arg_output) : STDOUT_FILENO, NULL, NULL); - if (r < 0) - return log_error_errno(r, "Coredump retrieval failed: %m"); - - r = sd_journal_previous(j); - if (r >= 0) - log_warning("More than one entry matches, ignoring rest."); - - return 0; -} - -static int run_gdb(sd_journal *j) { - _cleanup_free_ char *exe = NULL, *path = NULL; - bool unlink_path = false; - const char *data; - siginfo_t st; - size_t len; - pid_t pid; - int r; - - assert(j); - - r = focus(j); - if (r < 0) - return r; - - print_info(stdout, j, false); - fputs("\n", stdout); - - r = sd_journal_get_data(j, "COREDUMP_EXE", (const void**) &data, &len); - if (r < 0) - return log_error_errno(r, "Failed to retrieve COREDUMP_EXE field: %m"); - - assert(len > strlen("COREDUMP_EXE=")); - data += strlen("COREDUMP_EXE="); - len -= strlen("COREDUMP_EXE="); - - exe = strndup(data, len); - if (!exe) - return log_oom(); - - if (endswith(exe, " (deleted)")) { - log_error("Binary already deleted."); - return -ENOENT; - } - - if (!path_is_absolute(exe)) { - log_error("Binary is not an absolute path."); - return -ENOENT; - } - - r = save_core(j, -1, &path, &unlink_path); - if (r < 0) - return log_error_errno(r, "Failed to retrieve core: %m"); - - pid = fork(); - if (pid < 0) { - log_error_errno(errno, "Failed to fork(): %m"); - r = -errno; - goto finish; - } - if (pid == 0) { - execlp("gdb", "gdb", exe, path, NULL); - - log_error_errno(errno, "Failed to invoke gdb: %m"); - _exit(1); - } - - r = wait_for_terminate(pid, &st); - if (r < 0) { - log_error_errno(errno, "Failed to wait for gdb: %m"); - goto finish; - } - - r = st.si_code == CLD_EXITED ? st.si_status : 255; - -finish: - if (unlink_path) { - log_debug("Removed temporary file %s", path); - unlink(path); - } - - return r; -} - -int main(int argc, char *argv[]) { - _cleanup_journal_close_ sd_journal*j = NULL; - const char* match; - Iterator it; - int r = 0; - _cleanup_set_free_free_ Set *matches = NULL; - - setlocale(LC_ALL, ""); - log_parse_environment(); - log_open(); - - matches = new_matches(); - if (!matches) { - r = -ENOMEM; - goto end; - } - - r = parse_argv(argc, argv, matches); - if (r < 0) - goto end; - - if (arg_action == ACTION_NONE) - goto end; - - sigbus_install(); - - r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY); - if (r < 0) { - log_error_errno(r, "Failed to open journal: %m"); - goto end; - } - - /* We want full data, nothing truncated. */ - sd_journal_set_data_threshold(j, 0); - - SET_FOREACH(match, matches, it) { - r = sd_journal_add_match(j, match, strlen(match)); - if (r != 0) { - log_error_errno(r, "Failed to add match '%s': %m", - match); - goto end; - } - } - - if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) { - _cleanup_free_ char *filter; - - filter = journal_make_match_string(j); - log_debug("Journal filter: %s", filter); - } - - switch(arg_action) { - - case ACTION_LIST: - case ACTION_INFO: - if (!arg_no_pager) - pager_open(false); - - r = dump_list(j); - break; - - case ACTION_DUMP: - r = dump_core(j); - break; - - case ACTION_GDB: - r = run_gdb(j); - break; - - default: - assert_not_reached("Shouldn't be here"); - } - -end: - pager_close(); - - if (arg_output) - fclose(arg_output); - - return r >= 0 ? r : EXIT_FAILURE; -} diff --git a/src/journal/fsprg.c b/src/journal/fsprg.c deleted file mode 100644 index a9f564c249..0000000000 --- a/src/journal/fsprg.c +++ /dev/null @@ -1,389 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/* - * fsprg v0.1 - (seekable) forward-secure pseudorandom generator - * Copyright (C) 2012 B. Poettering - * Contact: fsprg@point-at-infinity.org - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301 USA - */ - -/* - * See "Practical Secure Logging: Seekable Sequential Key Generators" - * by G. A. Marson, B. Poettering for details: - * - * http://eprint.iacr.org/2013/397 - */ - -#include <gcrypt.h> -#include <string.h> - -#include "fsprg.h" - -#define ISVALID_SECPAR(secpar) (((secpar) % 16 == 0) && ((secpar) >= 16) && ((secpar) <= 16384)) -#define VALIDATE_SECPAR(secpar) assert(ISVALID_SECPAR(secpar)); - -#define RND_HASH GCRY_MD_SHA256 -#define RND_GEN_P 0x01 -#define RND_GEN_Q 0x02 -#define RND_GEN_X 0x03 - -/******************************************************************************/ - -static void mpi_export(void *buf, size_t buflen, const gcry_mpi_t x) { - unsigned len; - size_t nwritten; - - assert(gcry_mpi_cmp_ui(x, 0) >= 0); - len = (gcry_mpi_get_nbits(x) + 7) / 8; - assert(len <= buflen); - memzero(buf, buflen); - gcry_mpi_print(GCRYMPI_FMT_USG, buf + (buflen - len), len, &nwritten, x); - assert(nwritten == len); -} - -static gcry_mpi_t mpi_import(const void *buf, size_t buflen) { - gcry_mpi_t h; - unsigned len; - - gcry_mpi_scan(&h, GCRYMPI_FMT_USG, buf, buflen, NULL); - len = (gcry_mpi_get_nbits(h) + 7) / 8; - assert(len <= buflen); - assert(gcry_mpi_cmp_ui(h, 0) >= 0); - - return h; -} - -static void uint64_export(void *buf, size_t buflen, uint64_t x) { - assert(buflen == 8); - ((uint8_t*) buf)[0] = (x >> 56) & 0xff; - ((uint8_t*) buf)[1] = (x >> 48) & 0xff; - ((uint8_t*) buf)[2] = (x >> 40) & 0xff; - ((uint8_t*) buf)[3] = (x >> 32) & 0xff; - ((uint8_t*) buf)[4] = (x >> 24) & 0xff; - ((uint8_t*) buf)[5] = (x >> 16) & 0xff; - ((uint8_t*) buf)[6] = (x >> 8) & 0xff; - ((uint8_t*) buf)[7] = (x >> 0) & 0xff; -} - -_pure_ static uint64_t uint64_import(const void *buf, size_t buflen) { - assert(buflen == 8); - return - (uint64_t)(((uint8_t*) buf)[0]) << 56 | - (uint64_t)(((uint8_t*) buf)[1]) << 48 | - (uint64_t)(((uint8_t*) buf)[2]) << 40 | - (uint64_t)(((uint8_t*) buf)[3]) << 32 | - (uint64_t)(((uint8_t*) buf)[4]) << 24 | - (uint64_t)(((uint8_t*) buf)[5]) << 16 | - (uint64_t)(((uint8_t*) buf)[6]) << 8 | - (uint64_t)(((uint8_t*) buf)[7]) << 0; -} - -/* deterministically generate from seed/idx a string of buflen pseudorandom bytes */ -static void det_randomize(void *buf, size_t buflen, const void *seed, size_t seedlen, uint32_t idx) { - gcry_md_hd_t hd, hd2; - size_t olen, cpylen; - uint32_t ctr; - - olen = gcry_md_get_algo_dlen(RND_HASH); - gcry_md_open(&hd, RND_HASH, 0); - gcry_md_write(hd, seed, seedlen); - gcry_md_putc(hd, (idx >> 24) & 0xff); - gcry_md_putc(hd, (idx >> 16) & 0xff); - gcry_md_putc(hd, (idx >> 8) & 0xff); - gcry_md_putc(hd, (idx >> 0) & 0xff); - - for (ctr = 0; buflen; ctr++) { - gcry_md_copy(&hd2, hd); - gcry_md_putc(hd2, (ctr >> 24) & 0xff); - gcry_md_putc(hd2, (ctr >> 16) & 0xff); - gcry_md_putc(hd2, (ctr >> 8) & 0xff); - gcry_md_putc(hd2, (ctr >> 0) & 0xff); - gcry_md_final(hd2); - cpylen = (buflen < olen) ? buflen : olen; - memcpy(buf, gcry_md_read(hd2, RND_HASH), cpylen); - gcry_md_close(hd2); - buf += cpylen; - buflen -= cpylen; - } - gcry_md_close(hd); -} - -/* deterministically generate from seed/idx a prime of length `bits' that is 3 (mod 4) */ -static gcry_mpi_t genprime3mod4(int bits, const void *seed, size_t seedlen, uint32_t idx) { - size_t buflen = bits / 8; - uint8_t buf[buflen]; - gcry_mpi_t p; - - assert(bits % 8 == 0); - assert(buflen > 0); - - det_randomize(buf, buflen, seed, seedlen, idx); - buf[0] |= 0xc0; /* set upper two bits, so that n=pq has maximum size */ - buf[buflen - 1] |= 0x03; /* set lower two bits, to have result 3 (mod 4) */ - - p = mpi_import(buf, buflen); - while (gcry_prime_check(p, 0)) - gcry_mpi_add_ui(p, p, 4); - - return p; -} - -/* deterministically generate from seed/idx a quadratic residue (mod n) */ -static gcry_mpi_t gensquare(const gcry_mpi_t n, const void *seed, size_t seedlen, uint32_t idx, unsigned secpar) { - size_t buflen = secpar / 8; - uint8_t buf[buflen]; - gcry_mpi_t x; - - det_randomize(buf, buflen, seed, seedlen, idx); - buf[0] &= 0x7f; /* clear upper bit, so that we have x < n */ - x = mpi_import(buf, buflen); - assert(gcry_mpi_cmp(x, n) < 0); - gcry_mpi_mulm(x, x, x, n); - return x; -} - -/* compute 2^m (mod phi(p)), for a prime p */ -static gcry_mpi_t twopowmodphi(uint64_t m, const gcry_mpi_t p) { - gcry_mpi_t phi, r; - int n; - - phi = gcry_mpi_new(0); - gcry_mpi_sub_ui(phi, p, 1); - - /* count number of used bits in m */ - for (n = 0; (1ULL << n) <= m; n++) - ; - - r = gcry_mpi_new(0); - gcry_mpi_set_ui(r, 1); - while (n) { /* square and multiply algorithm for fast exponentiation */ - n--; - gcry_mpi_mulm(r, r, r, phi); - if (m & ((uint64_t)1 << n)) { - gcry_mpi_add(r, r, r); - if (gcry_mpi_cmp(r, phi) >= 0) - gcry_mpi_sub(r, r, phi); - } - } - - gcry_mpi_release(phi); - return r; -} - -/* Decompose $x \in Z_n$ into $(xp,xq) \in Z_p \times Z_q$ using Chinese Remainder Theorem */ -static void CRT_decompose(gcry_mpi_t *xp, gcry_mpi_t *xq, const gcry_mpi_t x, const gcry_mpi_t p, const gcry_mpi_t q) { - *xp = gcry_mpi_new(0); - *xq = gcry_mpi_new(0); - gcry_mpi_mod(*xp, x, p); - gcry_mpi_mod(*xq, x, q); -} - -/* Compose $(xp,xq) \in Z_p \times Z_q$ into $x \in Z_n$ using Chinese Remainder Theorem */ -static void CRT_compose(gcry_mpi_t *x, const gcry_mpi_t xp, const gcry_mpi_t xq, const gcry_mpi_t p, const gcry_mpi_t q) { - gcry_mpi_t a, u; - - a = gcry_mpi_new(0); - u = gcry_mpi_new(0); - *x = gcry_mpi_new(0); - gcry_mpi_subm(a, xq, xp, q); - gcry_mpi_invm(u, p, q); - gcry_mpi_mulm(a, a, u, q); /* a = (xq - xp) / p (mod q) */ - gcry_mpi_mul(*x, p, a); - gcry_mpi_add(*x, *x, xp); /* x = p * ((xq - xp) / p mod q) + xp */ - gcry_mpi_release(a); - gcry_mpi_release(u); -} - -static void initialize_libgcrypt(void) { - const char *p; - if (gcry_control(GCRYCTL_INITIALIZATION_FINISHED_P)) - return; - - p = gcry_check_version("1.4.5"); - assert(p); - - /* Turn off "secmem". Clients which whish to make use of this - * feature should initialize the library manually */ - gcry_control(GCRYCTL_DISABLE_SECMEM); - gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0); -} - -/******************************************************************************/ - -size_t FSPRG_mskinbytes(unsigned _secpar) { - VALIDATE_SECPAR(_secpar); - return 2 + 2 * (_secpar / 2) / 8; /* to store header,p,q */ -} - -size_t FSPRG_mpkinbytes(unsigned _secpar) { - VALIDATE_SECPAR(_secpar); - return 2 + _secpar / 8; /* to store header,n */ -} - -size_t FSPRG_stateinbytes(unsigned _secpar) { - VALIDATE_SECPAR(_secpar); - return 2 + 2 * _secpar / 8 + 8; /* to store header,n,x,epoch */ -} - -static void store_secpar(void *buf, uint16_t secpar) { - secpar = secpar / 16 - 1; - ((uint8_t*) buf)[0] = (secpar >> 8) & 0xff; - ((uint8_t*) buf)[1] = (secpar >> 0) & 0xff; -} - -static uint16_t read_secpar(const void *buf) { - uint16_t secpar; - secpar = - (uint16_t)(((uint8_t*) buf)[0]) << 8 | - (uint16_t)(((uint8_t*) buf)[1]) << 0; - return 16 * (secpar + 1); -} - -void FSPRG_GenMK(void *msk, void *mpk, const void *seed, size_t seedlen, unsigned _secpar) { - uint8_t iseed[FSPRG_RECOMMENDED_SEEDLEN]; - gcry_mpi_t n, p, q; - uint16_t secpar; - - VALIDATE_SECPAR(_secpar); - secpar = _secpar; - - initialize_libgcrypt(); - - if (!seed) { - gcry_randomize(iseed, FSPRG_RECOMMENDED_SEEDLEN, GCRY_STRONG_RANDOM); - seed = iseed; - seedlen = FSPRG_RECOMMENDED_SEEDLEN; - } - - p = genprime3mod4(secpar / 2, seed, seedlen, RND_GEN_P); - q = genprime3mod4(secpar / 2, seed, seedlen, RND_GEN_Q); - - if (msk) { - store_secpar(msk + 0, secpar); - mpi_export(msk + 2 + 0 * (secpar / 2) / 8, (secpar / 2) / 8, p); - mpi_export(msk + 2 + 1 * (secpar / 2) / 8, (secpar / 2) / 8, q); - } - - if (mpk) { - n = gcry_mpi_new(0); - gcry_mpi_mul(n, p, q); - assert(gcry_mpi_get_nbits(n) == secpar); - - store_secpar(mpk + 0, secpar); - mpi_export(mpk + 2, secpar / 8, n); - - gcry_mpi_release(n); - } - - gcry_mpi_release(p); - gcry_mpi_release(q); -} - -void FSPRG_GenState0(void *state, const void *mpk, const void *seed, size_t seedlen) { - gcry_mpi_t n, x; - uint16_t secpar; - - initialize_libgcrypt(); - - secpar = read_secpar(mpk + 0); - n = mpi_import(mpk + 2, secpar / 8); - x = gensquare(n, seed, seedlen, RND_GEN_X, secpar); - - memcpy(state, mpk, 2 + secpar / 8); - mpi_export(state + 2 + 1 * secpar / 8, secpar / 8, x); - memzero(state + 2 + 2 * secpar / 8, 8); - - gcry_mpi_release(n); - gcry_mpi_release(x); -} - -void FSPRG_Evolve(void *state) { - gcry_mpi_t n, x; - uint16_t secpar; - uint64_t epoch; - - initialize_libgcrypt(); - - secpar = read_secpar(state + 0); - n = mpi_import(state + 2 + 0 * secpar / 8, secpar / 8); - x = mpi_import(state + 2 + 1 * secpar / 8, secpar / 8); - epoch = uint64_import(state + 2 + 2 * secpar / 8, 8); - - gcry_mpi_mulm(x, x, x, n); - epoch++; - - mpi_export(state + 2 + 1 * secpar / 8, secpar / 8, x); - uint64_export(state + 2 + 2 * secpar / 8, 8, epoch); - - gcry_mpi_release(n); - gcry_mpi_release(x); -} - -uint64_t FSPRG_GetEpoch(const void *state) { - uint16_t secpar; - secpar = read_secpar(state + 0); - return uint64_import(state + 2 + 2 * secpar / 8, 8); -} - -void FSPRG_Seek(void *state, uint64_t epoch, const void *msk, const void *seed, size_t seedlen) { - gcry_mpi_t p, q, n, x, xp, xq, kp, kq, xm; - uint16_t secpar; - - initialize_libgcrypt(); - - secpar = read_secpar(msk + 0); - p = mpi_import(msk + 2 + 0 * (secpar / 2) / 8, (secpar / 2) / 8); - q = mpi_import(msk + 2 + 1 * (secpar / 2) / 8, (secpar / 2) / 8); - - n = gcry_mpi_new(0); - gcry_mpi_mul(n, p, q); - - x = gensquare(n, seed, seedlen, RND_GEN_X, secpar); - CRT_decompose(&xp, &xq, x, p, q); /* split (mod n) into (mod p) and (mod q) using CRT */ - - kp = twopowmodphi(epoch, p); /* compute 2^epoch (mod phi(p)) */ - kq = twopowmodphi(epoch, q); /* compute 2^epoch (mod phi(q)) */ - - gcry_mpi_powm(xp, xp, kp, p); /* compute x^(2^epoch) (mod p) */ - gcry_mpi_powm(xq, xq, kq, q); /* compute x^(2^epoch) (mod q) */ - - CRT_compose(&xm, xp, xq, p, q); /* combine (mod p) and (mod q) to (mod n) using CRT */ - - store_secpar(state + 0, secpar); - mpi_export(state + 2 + 0 * secpar / 8, secpar / 8, n); - mpi_export(state + 2 + 1 * secpar / 8, secpar / 8, xm); - uint64_export(state + 2 + 2 * secpar / 8, 8, epoch); - - gcry_mpi_release(p); - gcry_mpi_release(q); - gcry_mpi_release(n); - gcry_mpi_release(x); - gcry_mpi_release(xp); - gcry_mpi_release(xq); - gcry_mpi_release(kp); - gcry_mpi_release(kq); - gcry_mpi_release(xm); -} - -void FSPRG_GetKey(const void *state, void *key, size_t keylen, uint32_t idx) { - uint16_t secpar; - - initialize_libgcrypt(); - - secpar = read_secpar(state + 0); - det_randomize(key, keylen, state + 2, 2 * secpar / 8 + 8, idx); -} diff --git a/src/journal/fsprg.h b/src/journal/fsprg.h deleted file mode 100644 index 150d034828..0000000000 --- a/src/journal/fsprg.h +++ /dev/null @@ -1,66 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#ifndef __fsprgh__ -#define __fsprgh__ - -/* - * fsprg v0.1 - (seekable) forward-secure pseudorandom generator - * Copyright (C) 2012 B. Poettering - * Contact: fsprg@point-at-infinity.org - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <sys/types.h> -#include <inttypes.h> - -#include "macro.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define FSPRG_RECOMMENDED_SECPAR 1536 -#define FSPRG_RECOMMENDED_SEEDLEN (96/8) - -size_t FSPRG_mskinbytes(unsigned secpar) _const_; -size_t FSPRG_mpkinbytes(unsigned secpar) _const_; -size_t FSPRG_stateinbytes(unsigned secpar) _const_; - -/* Setup msk and mpk. Providing seed != NULL makes this algorithm deterministic. */ -void FSPRG_GenMK(void *msk, void *mpk, const void *seed, size_t seedlen, unsigned secpar); - -/* Initialize state deterministically in dependence on seed. */ -/* Note: in case one wants to run only one GenState0 per GenMK it is safe to use - the same seed for both GenMK and GenState0. -*/ -void FSPRG_GenState0(void *state, const void *mpk, const void *seed, size_t seedlen); - -void FSPRG_Evolve(void *state); - -uint64_t FSPRG_GetEpoch(const void *state) _pure_; - -/* Seek to any arbitrary state (by providing msk together with seed from GenState0). */ -void FSPRG_Seek(void *state, uint64_t epoch, const void *msk, const void *seed, size_t seedlen); - -void FSPRG_GetKey(const void *state, void *key, size_t keylen, uint32_t idx); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/journal/journal-authenticate.c b/src/journal/journal-authenticate.c deleted file mode 100644 index cdc80e2d26..0000000000 --- a/src/journal/journal-authenticate.c +++ /dev/null @@ -1,562 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <fcntl.h> -#include <sys/mman.h> - -#include "journal-def.h" -#include "journal-file.h" -#include "journal-authenticate.h" -#include "fsprg.h" - -static uint64_t journal_file_tag_seqnum(JournalFile *f) { - uint64_t r; - - assert(f); - - r = le64toh(f->header->n_tags) + 1; - f->header->n_tags = htole64(r); - - return r; -} - -int journal_file_append_tag(JournalFile *f) { - Object *o; - uint64_t p; - int r; - - assert(f); - - if (!f->seal) - return 0; - - if (!f->hmac_running) - return 0; - - assert(f->hmac); - - r = journal_file_append_object(f, OBJECT_TAG, sizeof(struct TagObject), &o, &p); - if (r < 0) - return r; - - o->tag.seqnum = htole64(journal_file_tag_seqnum(f)); - o->tag.epoch = htole64(FSPRG_GetEpoch(f->fsprg_state)); - - log_debug("Writing tag %"PRIu64" for epoch %"PRIu64"", - le64toh(o->tag.seqnum), - FSPRG_GetEpoch(f->fsprg_state)); - - /* Add the tag object itself, so that we can protect its - * header. This will exclude the actual hash value in it */ - r = journal_file_hmac_put_object(f, OBJECT_TAG, o, p); - if (r < 0) - return r; - - /* Get the HMAC tag and store it in the object */ - memcpy(o->tag.tag, gcry_md_read(f->hmac, 0), TAG_LENGTH); - f->hmac_running = false; - - return 0; -} - -int journal_file_hmac_start(JournalFile *f) { - uint8_t key[256 / 8]; /* Let's pass 256 bit from FSPRG to HMAC */ - assert(f); - - if (!f->seal) - return 0; - - if (f->hmac_running) - return 0; - - /* Prepare HMAC for next cycle */ - gcry_md_reset(f->hmac); - FSPRG_GetKey(f->fsprg_state, key, sizeof(key), 0); - gcry_md_setkey(f->hmac, key, sizeof(key)); - - f->hmac_running = true; - - return 0; -} - -static int journal_file_get_epoch(JournalFile *f, uint64_t realtime, uint64_t *epoch) { - uint64_t t; - - assert(f); - assert(epoch); - assert(f->seal); - - if (f->fss_start_usec == 0 || - f->fss_interval_usec == 0) - return -EOPNOTSUPP; - - if (realtime < f->fss_start_usec) - return -ESTALE; - - t = realtime - f->fss_start_usec; - t = t / f->fss_interval_usec; - - *epoch = t; - return 0; -} - -static int journal_file_fsprg_need_evolve(JournalFile *f, uint64_t realtime) { - uint64_t goal, epoch; - int r; - assert(f); - - if (!f->seal) - return 0; - - r = journal_file_get_epoch(f, realtime, &goal); - if (r < 0) - return r; - - epoch = FSPRG_GetEpoch(f->fsprg_state); - if (epoch > goal) - return -ESTALE; - - return epoch != goal; -} - -int journal_file_fsprg_evolve(JournalFile *f, uint64_t realtime) { - uint64_t goal, epoch; - int r; - - assert(f); - - if (!f->seal) - return 0; - - r = journal_file_get_epoch(f, realtime, &goal); - if (r < 0) - return r; - - epoch = FSPRG_GetEpoch(f->fsprg_state); - if (epoch < goal) - log_debug("Evolving FSPRG key from epoch %"PRIu64" to %"PRIu64".", epoch, goal); - - for (;;) { - if (epoch > goal) - return -ESTALE; - if (epoch == goal) - return 0; - - FSPRG_Evolve(f->fsprg_state); - epoch = FSPRG_GetEpoch(f->fsprg_state); - } -} - -int journal_file_fsprg_seek(JournalFile *f, uint64_t goal) { - void *msk; - uint64_t epoch; - - assert(f); - - if (!f->seal) - return 0; - - assert(f->fsprg_seed); - - if (f->fsprg_state) { - /* Cheaper... */ - - epoch = FSPRG_GetEpoch(f->fsprg_state); - if (goal == epoch) - return 0; - - if (goal == epoch+1) { - FSPRG_Evolve(f->fsprg_state); - return 0; - } - } else { - f->fsprg_state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR); - f->fsprg_state = malloc(f->fsprg_state_size); - - if (!f->fsprg_state) - return -ENOMEM; - } - - log_debug("Seeking FSPRG key to %"PRIu64".", goal); - - msk = alloca(FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR)); - FSPRG_GenMK(msk, NULL, f->fsprg_seed, f->fsprg_seed_size, FSPRG_RECOMMENDED_SECPAR); - FSPRG_Seek(f->fsprg_state, goal, msk, f->fsprg_seed, f->fsprg_seed_size); - return 0; -} - -int journal_file_maybe_append_tag(JournalFile *f, uint64_t realtime) { - int r; - - assert(f); - - if (!f->seal) - return 0; - - if (realtime <= 0) - realtime = now(CLOCK_REALTIME); - - r = journal_file_fsprg_need_evolve(f, realtime); - if (r <= 0) - return 0; - - r = journal_file_append_tag(f); - if (r < 0) - return r; - - r = journal_file_fsprg_evolve(f, realtime); - if (r < 0) - return r; - - return 0; -} - -int journal_file_hmac_put_object(JournalFile *f, ObjectType type, Object *o, uint64_t p) { - int r; - - assert(f); - - if (!f->seal) - return 0; - - r = journal_file_hmac_start(f); - if (r < 0) - return r; - - if (!o) { - r = journal_file_move_to_object(f, type, p, &o); - if (r < 0) - return r; - } else { - if (type > OBJECT_UNUSED && o->object.type != type) - return -EBADMSG; - } - - gcry_md_write(f->hmac, o, offsetof(ObjectHeader, payload)); - - switch (o->object.type) { - - case OBJECT_DATA: - /* All but hash and payload are mutable */ - gcry_md_write(f->hmac, &o->data.hash, sizeof(o->data.hash)); - gcry_md_write(f->hmac, o->data.payload, le64toh(o->object.size) - offsetof(DataObject, payload)); - break; - - case OBJECT_FIELD: - /* Same here */ - gcry_md_write(f->hmac, &o->field.hash, sizeof(o->field.hash)); - gcry_md_write(f->hmac, o->field.payload, le64toh(o->object.size) - offsetof(FieldObject, payload)); - break; - - case OBJECT_ENTRY: - /* All */ - gcry_md_write(f->hmac, &o->entry.seqnum, le64toh(o->object.size) - offsetof(EntryObject, seqnum)); - break; - - case OBJECT_FIELD_HASH_TABLE: - case OBJECT_DATA_HASH_TABLE: - case OBJECT_ENTRY_ARRAY: - /* Nothing: everything is mutable */ - break; - - case OBJECT_TAG: - /* All but the tag itself */ - gcry_md_write(f->hmac, &o->tag.seqnum, sizeof(o->tag.seqnum)); - gcry_md_write(f->hmac, &o->tag.epoch, sizeof(o->tag.epoch)); - break; - default: - return -EINVAL; - } - - return 0; -} - -int journal_file_hmac_put_header(JournalFile *f) { - int r; - - assert(f); - - if (!f->seal) - return 0; - - r = journal_file_hmac_start(f); - if (r < 0) - return r; - - /* All but state+reserved, boot_id, arena_size, - * tail_object_offset, n_objects, n_entries, - * tail_entry_seqnum, head_entry_seqnum, entry_array_offset, - * head_entry_realtime, tail_entry_realtime, - * tail_entry_monotonic, n_data, n_fields, n_tags, - * n_entry_arrays. */ - - gcry_md_write(f->hmac, f->header->signature, offsetof(Header, state) - offsetof(Header, signature)); - gcry_md_write(f->hmac, &f->header->file_id, offsetof(Header, boot_id) - offsetof(Header, file_id)); - gcry_md_write(f->hmac, &f->header->seqnum_id, offsetof(Header, arena_size) - offsetof(Header, seqnum_id)); - gcry_md_write(f->hmac, &f->header->data_hash_table_offset, offsetof(Header, tail_object_offset) - offsetof(Header, data_hash_table_offset)); - - return 0; -} - -int journal_file_fss_load(JournalFile *f) { - int r, fd = -1; - char *p = NULL; - struct stat st; - FSSHeader *m = NULL; - sd_id128_t machine; - - assert(f); - - if (!f->seal) - return 0; - - r = sd_id128_get_machine(&machine); - if (r < 0) - return r; - - if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss", - SD_ID128_FORMAT_VAL(machine)) < 0) - return -ENOMEM; - - fd = open(p, O_RDWR|O_CLOEXEC|O_NOCTTY, 0600); - if (fd < 0) { - if (errno != ENOENT) - log_error_errno(errno, "Failed to open %s: %m", p); - - r = -errno; - goto finish; - } - - if (fstat(fd, &st) < 0) { - r = -errno; - goto finish; - } - - if (st.st_size < (off_t) sizeof(FSSHeader)) { - r = -ENODATA; - goto finish; - } - - m = mmap(NULL, PAGE_ALIGN(sizeof(FSSHeader)), PROT_READ, MAP_SHARED, fd, 0); - if (m == MAP_FAILED) { - m = NULL; - r = -errno; - goto finish; - } - - if (memcmp(m->signature, FSS_HEADER_SIGNATURE, 8) != 0) { - r = -EBADMSG; - goto finish; - } - - if (m->incompatible_flags != 0) { - r = -EPROTONOSUPPORT; - goto finish; - } - - if (le64toh(m->header_size) < sizeof(FSSHeader)) { - r = -EBADMSG; - goto finish; - } - - if (le64toh(m->fsprg_state_size) != FSPRG_stateinbytes(le16toh(m->fsprg_secpar))) { - r = -EBADMSG; - goto finish; - } - - f->fss_file_size = le64toh(m->header_size) + le64toh(m->fsprg_state_size); - if ((uint64_t) st.st_size < f->fss_file_size) { - r = -ENODATA; - goto finish; - } - - if (!sd_id128_equal(machine, m->machine_id)) { - r = -EHOSTDOWN; - goto finish; - } - - if (le64toh(m->start_usec) <= 0 || - le64toh(m->interval_usec) <= 0) { - r = -EBADMSG; - goto finish; - } - - f->fss_file = mmap(NULL, PAGE_ALIGN(f->fss_file_size), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); - if (f->fss_file == MAP_FAILED) { - f->fss_file = NULL; - r = -errno; - goto finish; - } - - f->fss_start_usec = le64toh(f->fss_file->start_usec); - f->fss_interval_usec = le64toh(f->fss_file->interval_usec); - - f->fsprg_state = (uint8_t*) f->fss_file + le64toh(f->fss_file->header_size); - f->fsprg_state_size = le64toh(f->fss_file->fsprg_state_size); - - r = 0; - -finish: - if (m) - munmap(m, PAGE_ALIGN(sizeof(FSSHeader))); - - safe_close(fd); - free(p); - - return r; -} - -static void initialize_libgcrypt(void) { - const char *p; - - if (gcry_control(GCRYCTL_INITIALIZATION_FINISHED_P)) - return; - - p = gcry_check_version("1.4.5"); - assert(p); - - gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0); -} - -int journal_file_hmac_setup(JournalFile *f) { - gcry_error_t e; - - if (!f->seal) - return 0; - - initialize_libgcrypt(); - - e = gcry_md_open(&f->hmac, GCRY_MD_SHA256, GCRY_MD_FLAG_HMAC); - if (e != 0) - return -EOPNOTSUPP; - - return 0; -} - -int journal_file_append_first_tag(JournalFile *f) { - int r; - uint64_t p; - - if (!f->seal) - return 0; - - log_debug("Calculating first tag..."); - - r = journal_file_hmac_put_header(f); - if (r < 0) - return r; - - p = le64toh(f->header->field_hash_table_offset); - if (p < offsetof(Object, hash_table.items)) - return -EINVAL; - p -= offsetof(Object, hash_table.items); - - r = journal_file_hmac_put_object(f, OBJECT_FIELD_HASH_TABLE, NULL, p); - if (r < 0) - return r; - - p = le64toh(f->header->data_hash_table_offset); - if (p < offsetof(Object, hash_table.items)) - return -EINVAL; - p -= offsetof(Object, hash_table.items); - - r = journal_file_hmac_put_object(f, OBJECT_DATA_HASH_TABLE, NULL, p); - if (r < 0) - return r; - - r = journal_file_append_tag(f); - if (r < 0) - return r; - - return 0; -} - -int journal_file_parse_verification_key(JournalFile *f, const char *key) { - uint8_t *seed; - size_t seed_size, c; - const char *k; - int r; - unsigned long long start, interval; - - seed_size = FSPRG_RECOMMENDED_SEEDLEN; - seed = malloc(seed_size); - if (!seed) - return -ENOMEM; - - k = key; - for (c = 0; c < seed_size; c++) { - int x, y; - - while (*k == '-') - k++; - - x = unhexchar(*k); - if (x < 0) { - free(seed); - return -EINVAL; - } - k++; - y = unhexchar(*k); - if (y < 0) { - free(seed); - return -EINVAL; - } - k++; - - seed[c] = (uint8_t) (x * 16 + y); - } - - if (*k != '/') { - free(seed); - return -EINVAL; - } - k++; - - r = sscanf(k, "%llx-%llx", &start, &interval); - if (r != 2) { - free(seed); - return -EINVAL; - } - - f->fsprg_seed = seed; - f->fsprg_seed_size = seed_size; - - f->fss_start_usec = start * interval; - f->fss_interval_usec = interval; - - return 0; -} - -bool journal_file_next_evolve_usec(JournalFile *f, usec_t *u) { - uint64_t epoch; - - assert(f); - assert(u); - - if (!f->seal) - return false; - - epoch = FSPRG_GetEpoch(f->fsprg_state); - - *u = (usec_t) (f->fss_start_usec + f->fss_interval_usec * epoch + f->fss_interval_usec); - - return true; -} diff --git a/src/journal/journal-authenticate.h b/src/journal/journal-authenticate.h deleted file mode 100644 index 118bb1367b..0000000000 --- a/src/journal/journal-authenticate.h +++ /dev/null @@ -1,43 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdbool.h> - -#include "journal-file.h" - -int journal_file_append_tag(JournalFile *f); -int journal_file_maybe_append_tag(JournalFile *f, uint64_t realtime); -int journal_file_append_first_tag(JournalFile *f); - -int journal_file_hmac_setup(JournalFile *f); -int journal_file_hmac_start(JournalFile *f); -int journal_file_hmac_put_header(JournalFile *f); -int journal_file_hmac_put_object(JournalFile *f, ObjectType type, Object *o, uint64_t p); - -int journal_file_fss_load(JournalFile *f); -int journal_file_parse_verification_key(JournalFile *f, const char *key); - -int journal_file_fsprg_evolve(JournalFile *f, uint64_t realtime); -int journal_file_fsprg_seek(JournalFile *f, uint64_t epoch); - -bool journal_file_next_evolve_usec(JournalFile *f, usec_t *u); diff --git a/src/journal/journal-def.h b/src/journal/journal-def.h deleted file mode 100644 index ab089cb966..0000000000 --- a/src/journal/journal-def.h +++ /dev/null @@ -1,240 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "sparse-endian.h" - -#include "systemd/sd-id128.h" - -#include "macro.h" - -/* - * If you change this file you probably should also change its documentation: - * - * http://www.freedesktop.org/wiki/Software/systemd/journal-files - * - */ - -typedef struct Header Header; - -typedef struct ObjectHeader ObjectHeader; -typedef union Object Object; - -typedef struct DataObject DataObject; -typedef struct FieldObject FieldObject; -typedef struct EntryObject EntryObject; -typedef struct HashTableObject HashTableObject; -typedef struct EntryArrayObject EntryArrayObject; -typedef struct TagObject TagObject; - -typedef struct EntryItem EntryItem; -typedef struct HashItem HashItem; - -typedef struct FSSHeader FSSHeader; - -/* Object types */ -typedef enum ObjectType { - OBJECT_UNUSED, /* also serves as "any type" or "additional context" */ - OBJECT_DATA, - OBJECT_FIELD, - OBJECT_ENTRY, - OBJECT_DATA_HASH_TABLE, - OBJECT_FIELD_HASH_TABLE, - OBJECT_ENTRY_ARRAY, - OBJECT_TAG, - _OBJECT_TYPE_MAX -} ObjectType; - -/* Object flags */ -enum { - OBJECT_COMPRESSED_XZ = 1 << 0, - OBJECT_COMPRESSED_LZ4 = 1 << 1, - _OBJECT_COMPRESSED_MAX -}; - -#define OBJECT_COMPRESSION_MASK (OBJECT_COMPRESSED_XZ | OBJECT_COMPRESSED_LZ4) - -struct ObjectHeader { - uint8_t type; - uint8_t flags; - uint8_t reserved[6]; - le64_t size; - uint8_t payload[]; -} _packed_; - -struct DataObject { - ObjectHeader object; - le64_t hash; - le64_t next_hash_offset; - le64_t next_field_offset; - le64_t entry_offset; /* the first array entry we store inline */ - le64_t entry_array_offset; - le64_t n_entries; - uint8_t payload[]; -} _packed_; - -struct FieldObject { - ObjectHeader object; - le64_t hash; - le64_t next_hash_offset; - le64_t head_data_offset; - uint8_t payload[]; -} _packed_; - -struct EntryItem { - le64_t object_offset; - le64_t hash; -} _packed_; - -struct EntryObject { - ObjectHeader object; - le64_t seqnum; - le64_t realtime; - le64_t monotonic; - sd_id128_t boot_id; - le64_t xor_hash; - EntryItem items[]; -} _packed_; - -struct HashItem { - le64_t head_hash_offset; - le64_t tail_hash_offset; -} _packed_; - -struct HashTableObject { - ObjectHeader object; - HashItem items[]; -} _packed_; - -struct EntryArrayObject { - ObjectHeader object; - le64_t next_entry_array_offset; - le64_t items[]; -} _packed_; - -#define TAG_LENGTH (256/8) - -struct TagObject { - ObjectHeader object; - le64_t seqnum; - le64_t epoch; - uint8_t tag[TAG_LENGTH]; /* SHA-256 HMAC */ -} _packed_; - -union Object { - ObjectHeader object; - DataObject data; - FieldObject field; - EntryObject entry; - HashTableObject hash_table; - EntryArrayObject entry_array; - TagObject tag; -}; - -enum { - STATE_OFFLINE = 0, - STATE_ONLINE = 1, - STATE_ARCHIVED = 2, - _STATE_MAX -}; - -/* Header flags */ -enum { - HEADER_INCOMPATIBLE_COMPRESSED_XZ = 1 << 0, - HEADER_INCOMPATIBLE_COMPRESSED_LZ4 = 1 << 1, -}; - -#define HEADER_INCOMPATIBLE_ANY (HEADER_INCOMPATIBLE_COMPRESSED_XZ|HEADER_INCOMPATIBLE_COMPRESSED_LZ4) - -#if defined(HAVE_XZ) && defined(HAVE_LZ4) -# define HEADER_INCOMPATIBLE_SUPPORTED HEADER_INCOMPATIBLE_ANY -#elif defined(HAVE_XZ) -# define HEADER_INCOMPATIBLE_SUPPORTED HEADER_INCOMPATIBLE_COMPRESSED_XZ -#elif defined(HAVE_LZ4) -# define HEADER_INCOMPATIBLE_SUPPORTED HEADER_INCOMPATIBLE_COMPRESSED_LZ4 -#else -# define HEADER_INCOMPATIBLE_SUPPORTED 0 -#endif - -enum { - HEADER_COMPATIBLE_SEALED = 1 -}; - -#define HEADER_COMPATIBLE_ANY HEADER_COMPATIBLE_SEALED -#ifdef HAVE_GCRYPT -# define HEADER_COMPATIBLE_SUPPORTED HEADER_COMPATIBLE_SEALED -#else -# define HEADER_COMPATIBLE_SUPPORTED 0 -#endif - -#define HEADER_SIGNATURE ((char[]) { 'L', 'P', 'K', 'S', 'H', 'H', 'R', 'H' }) - -struct Header { - uint8_t signature[8]; /* "LPKSHHRH" */ - le32_t compatible_flags; - le32_t incompatible_flags; - uint8_t state; - uint8_t reserved[7]; - sd_id128_t file_id; - sd_id128_t machine_id; - sd_id128_t boot_id; /* last writer */ - sd_id128_t seqnum_id; - le64_t header_size; - le64_t arena_size; - le64_t data_hash_table_offset; - le64_t data_hash_table_size; - le64_t field_hash_table_offset; - le64_t field_hash_table_size; - le64_t tail_object_offset; - le64_t n_objects; - le64_t n_entries; - le64_t tail_entry_seqnum; - le64_t head_entry_seqnum; - le64_t entry_array_offset; - le64_t head_entry_realtime; - le64_t tail_entry_realtime; - le64_t tail_entry_monotonic; - /* Added in 187 */ - le64_t n_data; - le64_t n_fields; - /* Added in 189 */ - le64_t n_tags; - le64_t n_entry_arrays; - - /* Size: 224 */ -} _packed_; - -#define FSS_HEADER_SIGNATURE ((char[]) { 'K', 'S', 'H', 'H', 'R', 'H', 'L', 'P' }) - -struct FSSHeader { - uint8_t signature[8]; /* "KSHHRHLP" */ - le32_t compatible_flags; - le32_t incompatible_flags; - sd_id128_t machine_id; - sd_id128_t boot_id; /* last writer */ - le64_t header_size; - le64_t start_usec; - le64_t interval_usec; - le16_t fsprg_secpar; - le16_t reserved[3]; - le64_t fsprg_state_size; -} _packed_; diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c deleted file mode 100644 index 5a4e7cbd7d..0000000000 --- a/src/journal/journal-file.c +++ /dev/null @@ -1,3119 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <sys/mman.h> -#include <errno.h> -#include <sys/uio.h> -#include <unistd.h> -#include <sys/statvfs.h> -#include <fcntl.h> -#include <stddef.h> -#include <linux/fs.h> - -#include "btrfs-util.h" -#include "journal-def.h" -#include "journal-file.h" -#include "journal-authenticate.h" -#include "lookup3.h" -#include "compress.h" - -#define DEFAULT_DATA_HASH_TABLE_SIZE (2047ULL*sizeof(HashItem)) -#define DEFAULT_FIELD_HASH_TABLE_SIZE (333ULL*sizeof(HashItem)) - -#define COMPRESSION_SIZE_THRESHOLD (512ULL) - -/* This is the minimum journal file size */ -#define JOURNAL_FILE_SIZE_MIN (4ULL*1024ULL*1024ULL) /* 4 MiB */ - -/* These are the lower and upper bounds if we deduce the max_use value - * from the file system size */ -#define DEFAULT_MAX_USE_LOWER (1ULL*1024ULL*1024ULL) /* 1 MiB */ -#define DEFAULT_MAX_USE_UPPER (4ULL*1024ULL*1024ULL*1024ULL) /* 4 GiB */ - -/* This is the upper bound if we deduce max_size from max_use */ -#define DEFAULT_MAX_SIZE_UPPER (128ULL*1024ULL*1024ULL) /* 128 MiB */ - -/* This is the upper bound if we deduce the keep_free value from the - * file system size */ -#define DEFAULT_KEEP_FREE_UPPER (4ULL*1024ULL*1024ULL*1024ULL) /* 4 GiB */ - -/* This is the keep_free value when we can't determine the system - * size */ -#define DEFAULT_KEEP_FREE (1024ULL*1024ULL) /* 1 MB */ - -/* n_data was the first entry we added after the initial file format design */ -#define HEADER_SIZE_MIN ALIGN64(offsetof(Header, n_data)) - -/* How many entries to keep in the entry array chain cache at max */ -#define CHAIN_CACHE_MAX 20 - -/* How much to increase the journal file size at once each time we allocate something new. */ -#define FILE_SIZE_INCREASE (8ULL*1024ULL*1024ULL) /* 8MB */ - -/* Reread fstat() of the file for detecting deletions at least this often */ -#define LAST_STAT_REFRESH_USEC (5*USEC_PER_SEC) - -/* The mmap context to use for the header we pick as one above the last defined typed */ -#define CONTEXT_HEADER _OBJECT_TYPE_MAX - -static int journal_file_set_online(JournalFile *f) { - assert(f); - - if (!f->writable) - return -EPERM; - - if (!(f->fd >= 0 && f->header)) - return -EINVAL; - - if (mmap_cache_got_sigbus(f->mmap, f->fd)) - return -EIO; - - switch(f->header->state) { - case STATE_ONLINE: - return 0; - - case STATE_OFFLINE: - f->header->state = STATE_ONLINE; - fsync(f->fd); - return 0; - - default: - return -EINVAL; - } -} - -int journal_file_set_offline(JournalFile *f) { - assert(f); - - if (!f->writable) - return -EPERM; - - if (!(f->fd >= 0 && f->header)) - return -EINVAL; - - if (f->header->state != STATE_ONLINE) - return 0; - - fsync(f->fd); - - if (mmap_cache_got_sigbus(f->mmap, f->fd)) - return -EIO; - - f->header->state = STATE_OFFLINE; - - if (mmap_cache_got_sigbus(f->mmap, f->fd)) - return -EIO; - - fsync(f->fd); - - return 0; -} - -void journal_file_close(JournalFile *f) { - assert(f); - -#ifdef HAVE_GCRYPT - /* Write the final tag */ - if (f->seal && f->writable) - journal_file_append_tag(f); -#endif - - journal_file_set_offline(f); - - if (f->mmap && f->fd >= 0) - mmap_cache_close_fd(f->mmap, f->fd); - - if (f->fd >= 0 && f->defrag_on_close) { - - /* Be friendly to btrfs: turn COW back on again now, - * and defragment the file. We won't write to the file - * ever again, hence remove all fragmentation, and - * reenable all the good bits COW usually provides - * (such as data checksumming). */ - - (void) chattr_fd(f->fd, false, FS_NOCOW_FL); - (void) btrfs_defrag_fd(f->fd); - } - - safe_close(f->fd); - free(f->path); - - if (f->mmap) - mmap_cache_unref(f->mmap); - - ordered_hashmap_free_free(f->chain_cache); - -#if defined(HAVE_XZ) || defined(HAVE_LZ4) - free(f->compress_buffer); -#endif - -#ifdef HAVE_GCRYPT - if (f->fss_file) - munmap(f->fss_file, PAGE_ALIGN(f->fss_file_size)); - else if (f->fsprg_state) - free(f->fsprg_state); - - free(f->fsprg_seed); - - if (f->hmac) - gcry_md_close(f->hmac); -#endif - - free(f); -} - -static int journal_file_init_header(JournalFile *f, JournalFile *template) { - Header h = {}; - ssize_t k; - int r; - - assert(f); - - memcpy(h.signature, HEADER_SIGNATURE, 8); - h.header_size = htole64(ALIGN64(sizeof(h))); - - h.incompatible_flags |= htole32( - f->compress_xz * HEADER_INCOMPATIBLE_COMPRESSED_XZ | - f->compress_lz4 * HEADER_INCOMPATIBLE_COMPRESSED_LZ4); - - h.compatible_flags = htole32( - f->seal * HEADER_COMPATIBLE_SEALED); - - r = sd_id128_randomize(&h.file_id); - if (r < 0) - return r; - - if (template) { - h.seqnum_id = template->header->seqnum_id; - h.tail_entry_seqnum = template->header->tail_entry_seqnum; - } else - h.seqnum_id = h.file_id; - - k = pwrite(f->fd, &h, sizeof(h), 0); - if (k < 0) - return -errno; - - if (k != sizeof(h)) - return -EIO; - - return 0; -} - -static int journal_file_refresh_header(JournalFile *f) { - sd_id128_t boot_id; - int r; - - assert(f); - - r = sd_id128_get_machine(&f->header->machine_id); - if (r < 0) - return r; - - r = sd_id128_get_boot(&boot_id); - if (r < 0) - return r; - - if (sd_id128_equal(boot_id, f->header->boot_id)) - f->tail_entry_monotonic_valid = true; - - f->header->boot_id = boot_id; - - r = journal_file_set_online(f); - - /* Sync the online state to disk */ - fsync(f->fd); - - return r; -} - -static int journal_file_verify_header(JournalFile *f) { - uint32_t flags; - - assert(f); - - if (memcmp(f->header->signature, HEADER_SIGNATURE, 8)) - return -EBADMSG; - - /* In both read and write mode we refuse to open files with - * incompatible flags we don't know */ - flags = le32toh(f->header->incompatible_flags); - if (flags & ~HEADER_INCOMPATIBLE_SUPPORTED) { - if (flags & ~HEADER_INCOMPATIBLE_ANY) - log_debug("Journal file %s has unknown incompatible flags %"PRIx32, - f->path, flags & ~HEADER_INCOMPATIBLE_ANY); - flags = (flags & HEADER_INCOMPATIBLE_ANY) & ~HEADER_INCOMPATIBLE_SUPPORTED; - if (flags) - log_debug("Journal file %s uses incompatible flags %"PRIx32 - " disabled at compilation time.", f->path, flags); - return -EPROTONOSUPPORT; - } - - /* When open for writing we refuse to open files with - * compatible flags, too */ - flags = le32toh(f->header->compatible_flags); - if (f->writable && (flags & ~HEADER_COMPATIBLE_SUPPORTED)) { - if (flags & ~HEADER_COMPATIBLE_ANY) - log_debug("Journal file %s has unknown compatible flags %"PRIx32, - f->path, flags & ~HEADER_COMPATIBLE_ANY); - flags = (flags & HEADER_COMPATIBLE_ANY) & ~HEADER_COMPATIBLE_SUPPORTED; - if (flags) - log_debug("Journal file %s uses compatible flags %"PRIx32 - " disabled at compilation time.", f->path, flags); - return -EPROTONOSUPPORT; - } - - if (f->header->state >= _STATE_MAX) - return -EBADMSG; - - /* The first addition was n_data, so check that we are at least this large */ - if (le64toh(f->header->header_size) < HEADER_SIZE_MIN) - return -EBADMSG; - - if (JOURNAL_HEADER_SEALED(f->header) && !JOURNAL_HEADER_CONTAINS(f->header, n_entry_arrays)) - return -EBADMSG; - - if ((le64toh(f->header->header_size) + le64toh(f->header->arena_size)) > (uint64_t) f->last_stat.st_size) - return -ENODATA; - - if (le64toh(f->header->tail_object_offset) > (le64toh(f->header->header_size) + le64toh(f->header->arena_size))) - return -ENODATA; - - if (!VALID64(le64toh(f->header->data_hash_table_offset)) || - !VALID64(le64toh(f->header->field_hash_table_offset)) || - !VALID64(le64toh(f->header->tail_object_offset)) || - !VALID64(le64toh(f->header->entry_array_offset))) - return -ENODATA; - - if (f->writable) { - uint8_t state; - sd_id128_t machine_id; - int r; - - r = sd_id128_get_machine(&machine_id); - if (r < 0) - return r; - - if (!sd_id128_equal(machine_id, f->header->machine_id)) - return -EHOSTDOWN; - - state = f->header->state; - - if (state == STATE_ONLINE) { - log_debug("Journal file %s is already online. Assuming unclean closing.", f->path); - return -EBUSY; - } else if (state == STATE_ARCHIVED) - return -ESHUTDOWN; - else if (state != STATE_OFFLINE) { - log_debug("Journal file %s has unknown state %i.", f->path, state); - return -EBUSY; - } - } - - f->compress_xz = JOURNAL_HEADER_COMPRESSED_XZ(f->header); - f->compress_lz4 = JOURNAL_HEADER_COMPRESSED_LZ4(f->header); - - f->seal = JOURNAL_HEADER_SEALED(f->header); - - return 0; -} - -static int journal_file_fstat(JournalFile *f) { - assert(f); - assert(f->fd >= 0); - - if (fstat(f->fd, &f->last_stat) < 0) - return -errno; - - f->last_stat_usec = now(CLOCK_MONOTONIC); - - /* Refuse appending to files that are already deleted */ - if (f->last_stat.st_nlink <= 0) - return -EIDRM; - - return 0; -} - -static int journal_file_allocate(JournalFile *f, uint64_t offset, uint64_t size) { - uint64_t old_size, new_size; - int r; - - assert(f); - - /* We assume that this file is not sparse, and we know that - * for sure, since we always call posix_fallocate() - * ourselves */ - - if (mmap_cache_got_sigbus(f->mmap, f->fd)) - return -EIO; - - old_size = - le64toh(f->header->header_size) + - le64toh(f->header->arena_size); - - new_size = PAGE_ALIGN(offset + size); - if (new_size < le64toh(f->header->header_size)) - new_size = le64toh(f->header->header_size); - - if (new_size <= old_size) { - - /* We already pre-allocated enough space, but before - * we write to it, let's check with fstat() if the - * file got deleted, in order make sure we don't throw - * away the data immediately. Don't check fstat() for - * all writes though, but only once ever 10s. */ - - if (f->last_stat_usec + LAST_STAT_REFRESH_USEC > now(CLOCK_MONOTONIC)) - return 0; - - return journal_file_fstat(f); - } - - /* Allocate more space. */ - - if (f->metrics.max_size > 0 && new_size > f->metrics.max_size) - return -E2BIG; - - if (new_size > f->metrics.min_size && f->metrics.keep_free > 0) { - struct statvfs svfs; - - if (fstatvfs(f->fd, &svfs) >= 0) { - uint64_t available; - - available = svfs.f_bfree * svfs.f_bsize; - - if (available >= f->metrics.keep_free) - available -= f->metrics.keep_free; - else - available = 0; - - if (new_size - old_size > available) - return -E2BIG; - } - } - - /* Increase by larger blocks at once */ - new_size = ((new_size+FILE_SIZE_INCREASE-1) / FILE_SIZE_INCREASE) * FILE_SIZE_INCREASE; - if (f->metrics.max_size > 0 && new_size > f->metrics.max_size) - new_size = f->metrics.max_size; - - /* Note that the glibc fallocate() fallback is very - inefficient, hence we try to minimize the allocation area - as we can. */ - r = posix_fallocate(f->fd, old_size, new_size - old_size); - if (r != 0) - return -r; - - f->header->arena_size = htole64(new_size - le64toh(f->header->header_size)); - - return journal_file_fstat(f); -} - -static unsigned type_to_context(ObjectType type) { - /* One context for each type, plus one catch-all for the rest */ - assert_cc(_OBJECT_TYPE_MAX <= MMAP_CACHE_MAX_CONTEXTS); - assert_cc(CONTEXT_HEADER < MMAP_CACHE_MAX_CONTEXTS); - return type > OBJECT_UNUSED && type < _OBJECT_TYPE_MAX ? type : 0; -} - -static int journal_file_move_to(JournalFile *f, ObjectType type, bool keep_always, uint64_t offset, uint64_t size, void **ret) { - int r; - - assert(f); - assert(ret); - - if (size <= 0) - return -EINVAL; - - /* Avoid SIGBUS on invalid accesses */ - if (offset + size > (uint64_t) f->last_stat.st_size) { - /* Hmm, out of range? Let's refresh the fstat() data - * first, before we trust that check. */ - - r = journal_file_fstat(f); - if (r < 0) - return r; - - if (offset + size > (uint64_t) f->last_stat.st_size) - return -EADDRNOTAVAIL; - } - - return mmap_cache_get(f->mmap, f->fd, f->prot, type_to_context(type), keep_always, offset, size, &f->last_stat, ret); -} - -static uint64_t minimum_header_size(Object *o) { - - static const uint64_t table[] = { - [OBJECT_DATA] = sizeof(DataObject), - [OBJECT_FIELD] = sizeof(FieldObject), - [OBJECT_ENTRY] = sizeof(EntryObject), - [OBJECT_DATA_HASH_TABLE] = sizeof(HashTableObject), - [OBJECT_FIELD_HASH_TABLE] = sizeof(HashTableObject), - [OBJECT_ENTRY_ARRAY] = sizeof(EntryArrayObject), - [OBJECT_TAG] = sizeof(TagObject), - }; - - if (o->object.type >= ELEMENTSOF(table) || table[o->object.type] <= 0) - return sizeof(ObjectHeader); - - return table[o->object.type]; -} - -int journal_file_move_to_object(JournalFile *f, ObjectType type, uint64_t offset, Object **ret) { - int r; - void *t; - Object *o; - uint64_t s; - - assert(f); - assert(ret); - - /* Objects may only be located at multiple of 64 bit */ - if (!VALID64(offset)) - return -EFAULT; - - r = journal_file_move_to(f, type, false, offset, sizeof(ObjectHeader), &t); - if (r < 0) - return r; - - o = (Object*) t; - s = le64toh(o->object.size); - - if (s < sizeof(ObjectHeader)) - return -EBADMSG; - - if (o->object.type <= OBJECT_UNUSED) - return -EBADMSG; - - if (s < minimum_header_size(o)) - return -EBADMSG; - - if (type > OBJECT_UNUSED && o->object.type != type) - return -EBADMSG; - - if (s > sizeof(ObjectHeader)) { - r = journal_file_move_to(f, type, false, offset, s, &t); - if (r < 0) - return r; - - o = (Object*) t; - } - - *ret = o; - return 0; -} - -static uint64_t journal_file_entry_seqnum(JournalFile *f, uint64_t *seqnum) { - uint64_t r; - - assert(f); - - r = le64toh(f->header->tail_entry_seqnum) + 1; - - if (seqnum) { - /* If an external seqnum counter was passed, we update - * both the local and the external one, and set it to - * the maximum of both */ - - if (*seqnum + 1 > r) - r = *seqnum + 1; - - *seqnum = r; - } - - f->header->tail_entry_seqnum = htole64(r); - - if (f->header->head_entry_seqnum == 0) - f->header->head_entry_seqnum = htole64(r); - - return r; -} - -int journal_file_append_object(JournalFile *f, ObjectType type, uint64_t size, Object **ret, uint64_t *offset) { - int r; - uint64_t p; - Object *tail, *o; - void *t; - - assert(f); - assert(type > OBJECT_UNUSED && type < _OBJECT_TYPE_MAX); - assert(size >= sizeof(ObjectHeader)); - assert(offset); - assert(ret); - - r = journal_file_set_online(f); - if (r < 0) - return r; - - p = le64toh(f->header->tail_object_offset); - if (p == 0) - p = le64toh(f->header->header_size); - else { - r = journal_file_move_to_object(f, OBJECT_UNUSED, p, &tail); - if (r < 0) - return r; - - p += ALIGN64(le64toh(tail->object.size)); - } - - r = journal_file_allocate(f, p, size); - if (r < 0) - return r; - - r = journal_file_move_to(f, type, false, p, size, &t); - if (r < 0) - return r; - - o = (Object*) t; - - zero(o->object); - o->object.type = type; - o->object.size = htole64(size); - - f->header->tail_object_offset = htole64(p); - f->header->n_objects = htole64(le64toh(f->header->n_objects) + 1); - - *ret = o; - *offset = p; - - return 0; -} - -static int journal_file_setup_data_hash_table(JournalFile *f) { - uint64_t s, p; - Object *o; - int r; - - assert(f); - - /* We estimate that we need 1 hash table entry per 768 of - journal file and we want to make sure we never get beyond - 75% fill level. Calculate the hash table size for the - maximum file size based on these metrics. */ - - s = (f->metrics.max_size * 4 / 768 / 3) * sizeof(HashItem); - if (s < DEFAULT_DATA_HASH_TABLE_SIZE) - s = DEFAULT_DATA_HASH_TABLE_SIZE; - - log_debug("Reserving %"PRIu64" entries in hash table.", s / sizeof(HashItem)); - - r = journal_file_append_object(f, - OBJECT_DATA_HASH_TABLE, - offsetof(Object, hash_table.items) + s, - &o, &p); - if (r < 0) - return r; - - memzero(o->hash_table.items, s); - - f->header->data_hash_table_offset = htole64(p + offsetof(Object, hash_table.items)); - f->header->data_hash_table_size = htole64(s); - - return 0; -} - -static int journal_file_setup_field_hash_table(JournalFile *f) { - uint64_t s, p; - Object *o; - int r; - - assert(f); - - /* We use a fixed size hash table for the fields as this - * number should grow very slowly only */ - - s = DEFAULT_FIELD_HASH_TABLE_SIZE; - r = journal_file_append_object(f, - OBJECT_FIELD_HASH_TABLE, - offsetof(Object, hash_table.items) + s, - &o, &p); - if (r < 0) - return r; - - memzero(o->hash_table.items, s); - - f->header->field_hash_table_offset = htole64(p + offsetof(Object, hash_table.items)); - f->header->field_hash_table_size = htole64(s); - - return 0; -} - -static int journal_file_map_data_hash_table(JournalFile *f) { - uint64_t s, p; - void *t; - int r; - - assert(f); - - p = le64toh(f->header->data_hash_table_offset); - s = le64toh(f->header->data_hash_table_size); - - r = journal_file_move_to(f, - OBJECT_DATA_HASH_TABLE, - true, - p, s, - &t); - if (r < 0) - return r; - - f->data_hash_table = t; - return 0; -} - -static int journal_file_map_field_hash_table(JournalFile *f) { - uint64_t s, p; - void *t; - int r; - - assert(f); - - p = le64toh(f->header->field_hash_table_offset); - s = le64toh(f->header->field_hash_table_size); - - r = journal_file_move_to(f, - OBJECT_FIELD_HASH_TABLE, - true, - p, s, - &t); - if (r < 0) - return r; - - f->field_hash_table = t; - return 0; -} - -static int journal_file_link_field( - JournalFile *f, - Object *o, - uint64_t offset, - uint64_t hash) { - - uint64_t p, h, m; - int r; - - assert(f); - assert(o); - assert(offset > 0); - - if (o->object.type != OBJECT_FIELD) - return -EINVAL; - - m = le64toh(f->header->field_hash_table_size) / sizeof(HashItem); - if (m <= 0) - return -EBADMSG; - - /* This might alter the window we are looking at */ - o->field.next_hash_offset = o->field.head_data_offset = 0; - - h = hash % m; - p = le64toh(f->field_hash_table[h].tail_hash_offset); - if (p == 0) - f->field_hash_table[h].head_hash_offset = htole64(offset); - else { - r = journal_file_move_to_object(f, OBJECT_FIELD, p, &o); - if (r < 0) - return r; - - o->field.next_hash_offset = htole64(offset); - } - - f->field_hash_table[h].tail_hash_offset = htole64(offset); - - if (JOURNAL_HEADER_CONTAINS(f->header, n_fields)) - f->header->n_fields = htole64(le64toh(f->header->n_fields) + 1); - - return 0; -} - -static int journal_file_link_data( - JournalFile *f, - Object *o, - uint64_t offset, - uint64_t hash) { - - uint64_t p, h, m; - int r; - - assert(f); - assert(o); - assert(offset > 0); - - if (o->object.type != OBJECT_DATA) - return -EINVAL; - - m = le64toh(f->header->data_hash_table_size) / sizeof(HashItem); - if (m <= 0) - return -EBADMSG; - - /* This might alter the window we are looking at */ - o->data.next_hash_offset = o->data.next_field_offset = 0; - o->data.entry_offset = o->data.entry_array_offset = 0; - o->data.n_entries = 0; - - h = hash % m; - p = le64toh(f->data_hash_table[h].tail_hash_offset); - if (p == 0) - /* Only entry in the hash table is easy */ - f->data_hash_table[h].head_hash_offset = htole64(offset); - else { - /* Move back to the previous data object, to patch in - * pointer */ - - r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); - if (r < 0) - return r; - - o->data.next_hash_offset = htole64(offset); - } - - f->data_hash_table[h].tail_hash_offset = htole64(offset); - - if (JOURNAL_HEADER_CONTAINS(f->header, n_data)) - f->header->n_data = htole64(le64toh(f->header->n_data) + 1); - - return 0; -} - -int journal_file_find_field_object_with_hash( - JournalFile *f, - const void *field, uint64_t size, uint64_t hash, - Object **ret, uint64_t *offset) { - - uint64_t p, osize, h, m; - int r; - - assert(f); - assert(field && size > 0); - - osize = offsetof(Object, field.payload) + size; - - m = le64toh(f->header->field_hash_table_size) / sizeof(HashItem); - - if (m <= 0) - return -EBADMSG; - - h = hash % m; - p = le64toh(f->field_hash_table[h].head_hash_offset); - - while (p > 0) { - Object *o; - - r = journal_file_move_to_object(f, OBJECT_FIELD, p, &o); - if (r < 0) - return r; - - if (le64toh(o->field.hash) == hash && - le64toh(o->object.size) == osize && - memcmp(o->field.payload, field, size) == 0) { - - if (ret) - *ret = o; - if (offset) - *offset = p; - - return 1; - } - - p = le64toh(o->field.next_hash_offset); - } - - return 0; -} - -int journal_file_find_field_object( - JournalFile *f, - const void *field, uint64_t size, - Object **ret, uint64_t *offset) { - - uint64_t hash; - - assert(f); - assert(field && size > 0); - - hash = hash64(field, size); - - return journal_file_find_field_object_with_hash(f, - field, size, hash, - ret, offset); -} - -int journal_file_find_data_object_with_hash( - JournalFile *f, - const void *data, uint64_t size, uint64_t hash, - Object **ret, uint64_t *offset) { - - uint64_t p, osize, h, m; - int r; - - assert(f); - assert(data || size == 0); - - osize = offsetof(Object, data.payload) + size; - - m = le64toh(f->header->data_hash_table_size) / sizeof(HashItem); - if (m <= 0) - return -EBADMSG; - - h = hash % m; - p = le64toh(f->data_hash_table[h].head_hash_offset); - - while (p > 0) { - Object *o; - - r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); - if (r < 0) - return r; - - if (le64toh(o->data.hash) != hash) - goto next; - - if (o->object.flags & OBJECT_COMPRESSION_MASK) { -#if defined(HAVE_XZ) || defined(HAVE_LZ4) - uint64_t l; - size_t rsize = 0; - - l = le64toh(o->object.size); - if (l <= offsetof(Object, data.payload)) - return -EBADMSG; - - l -= offsetof(Object, data.payload); - - r = decompress_blob(o->object.flags & OBJECT_COMPRESSION_MASK, - o->data.payload, l, &f->compress_buffer, &f->compress_buffer_size, &rsize, 0); - if (r < 0) - return r; - - if (rsize == size && - memcmp(f->compress_buffer, data, size) == 0) { - - if (ret) - *ret = o; - - if (offset) - *offset = p; - - return 1; - } -#else - return -EPROTONOSUPPORT; -#endif - } else if (le64toh(o->object.size) == osize && - memcmp(o->data.payload, data, size) == 0) { - - if (ret) - *ret = o; - - if (offset) - *offset = p; - - return 1; - } - - next: - p = le64toh(o->data.next_hash_offset); - } - - return 0; -} - -int journal_file_find_data_object( - JournalFile *f, - const void *data, uint64_t size, - Object **ret, uint64_t *offset) { - - uint64_t hash; - - assert(f); - assert(data || size == 0); - - hash = hash64(data, size); - - return journal_file_find_data_object_with_hash(f, - data, size, hash, - ret, offset); -} - -static int journal_file_append_field( - JournalFile *f, - const void *field, uint64_t size, - Object **ret, uint64_t *offset) { - - uint64_t hash, p; - uint64_t osize; - Object *o; - int r; - - assert(f); - assert(field && size > 0); - - hash = hash64(field, size); - - r = journal_file_find_field_object_with_hash(f, field, size, hash, &o, &p); - if (r < 0) - return r; - else if (r > 0) { - - if (ret) - *ret = o; - - if (offset) - *offset = p; - - return 0; - } - - osize = offsetof(Object, field.payload) + size; - r = journal_file_append_object(f, OBJECT_FIELD, osize, &o, &p); - if (r < 0) - return r; - - o->field.hash = htole64(hash); - memcpy(o->field.payload, field, size); - - r = journal_file_link_field(f, o, p, hash); - if (r < 0) - return r; - - /* The linking might have altered the window, so let's - * refresh our pointer */ - r = journal_file_move_to_object(f, OBJECT_FIELD, p, &o); - if (r < 0) - return r; - -#ifdef HAVE_GCRYPT - r = journal_file_hmac_put_object(f, OBJECT_FIELD, o, p); - if (r < 0) - return r; -#endif - - if (ret) - *ret = o; - - if (offset) - *offset = p; - - return 0; -} - -static int journal_file_append_data( - JournalFile *f, - const void *data, uint64_t size, - Object **ret, uint64_t *offset) { - - uint64_t hash, p; - uint64_t osize; - Object *o; - int r, compression = 0; - const void *eq; - - assert(f); - assert(data || size == 0); - - hash = hash64(data, size); - - r = journal_file_find_data_object_with_hash(f, data, size, hash, &o, &p); - if (r < 0) - return r; - else if (r > 0) { - - if (ret) - *ret = o; - - if (offset) - *offset = p; - - return 0; - } - - osize = offsetof(Object, data.payload) + size; - r = journal_file_append_object(f, OBJECT_DATA, osize, &o, &p); - if (r < 0) - return r; - - o->data.hash = htole64(hash); - -#if defined(HAVE_XZ) || defined(HAVE_LZ4) - if (f->compress_xz && - size >= COMPRESSION_SIZE_THRESHOLD) { - size_t rsize = 0; - - compression = compress_blob(data, size, o->data.payload, &rsize); - - if (compression) { - o->object.size = htole64(offsetof(Object, data.payload) + rsize); - o->object.flags |= compression; - - log_debug("Compressed data object %"PRIu64" -> %zu using %s", - size, rsize, object_compressed_to_string(compression)); - } - } -#endif - - if (!compression && size > 0) - memcpy(o->data.payload, data, size); - - r = journal_file_link_data(f, o, p, hash); - if (r < 0) - return r; - - /* The linking might have altered the window, so let's - * refresh our pointer */ - r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); - if (r < 0) - return r; - - if (!data) - eq = NULL; - else - eq = memchr(data, '=', size); - if (eq && eq > data) { - Object *fo = NULL; - uint64_t fp; - - /* Create field object ... */ - r = journal_file_append_field(f, data, (uint8_t*) eq - (uint8_t*) data, &fo, &fp); - if (r < 0) - return r; - - /* ... and link it in. */ - o->data.next_field_offset = fo->field.head_data_offset; - fo->field.head_data_offset = le64toh(p); - } - -#ifdef HAVE_GCRYPT - r = journal_file_hmac_put_object(f, OBJECT_DATA, o, p); - if (r < 0) - return r; -#endif - - if (ret) - *ret = o; - - if (offset) - *offset = p; - - return 0; -} - -uint64_t journal_file_entry_n_items(Object *o) { - assert(o); - - if (o->object.type != OBJECT_ENTRY) - return 0; - - return (le64toh(o->object.size) - offsetof(Object, entry.items)) / sizeof(EntryItem); -} - -uint64_t journal_file_entry_array_n_items(Object *o) { - assert(o); - - if (o->object.type != OBJECT_ENTRY_ARRAY) - return 0; - - return (le64toh(o->object.size) - offsetof(Object, entry_array.items)) / sizeof(uint64_t); -} - -uint64_t journal_file_hash_table_n_items(Object *o) { - assert(o); - - if (o->object.type != OBJECT_DATA_HASH_TABLE && - o->object.type != OBJECT_FIELD_HASH_TABLE) - return 0; - - return (le64toh(o->object.size) - offsetof(Object, hash_table.items)) / sizeof(HashItem); -} - -static int link_entry_into_array(JournalFile *f, - le64_t *first, - le64_t *idx, - uint64_t p) { - int r; - uint64_t n = 0, ap = 0, q, i, a, hidx; - Object *o; - - assert(f); - assert(first); - assert(idx); - assert(p > 0); - - a = le64toh(*first); - i = hidx = le64toh(*idx); - while (a > 0) { - - r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o); - if (r < 0) - return r; - - n = journal_file_entry_array_n_items(o); - if (i < n) { - o->entry_array.items[i] = htole64(p); - *idx = htole64(hidx + 1); - return 0; - } - - i -= n; - ap = a; - a = le64toh(o->entry_array.next_entry_array_offset); - } - - if (hidx > n) - n = (hidx+1) * 2; - else - n = n * 2; - - if (n < 4) - n = 4; - - r = journal_file_append_object(f, OBJECT_ENTRY_ARRAY, - offsetof(Object, entry_array.items) + n * sizeof(uint64_t), - &o, &q); - if (r < 0) - return r; - -#ifdef HAVE_GCRYPT - r = journal_file_hmac_put_object(f, OBJECT_ENTRY_ARRAY, o, q); - if (r < 0) - return r; -#endif - - o->entry_array.items[i] = htole64(p); - - if (ap == 0) - *first = htole64(q); - else { - r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, ap, &o); - if (r < 0) - return r; - - o->entry_array.next_entry_array_offset = htole64(q); - } - - if (JOURNAL_HEADER_CONTAINS(f->header, n_entry_arrays)) - f->header->n_entry_arrays = htole64(le64toh(f->header->n_entry_arrays) + 1); - - *idx = htole64(hidx + 1); - - return 0; -} - -static int link_entry_into_array_plus_one(JournalFile *f, - le64_t *extra, - le64_t *first, - le64_t *idx, - uint64_t p) { - - int r; - - assert(f); - assert(extra); - assert(first); - assert(idx); - assert(p > 0); - - if (*idx == 0) - *extra = htole64(p); - else { - le64_t i; - - i = htole64(le64toh(*idx) - 1); - r = link_entry_into_array(f, first, &i, p); - if (r < 0) - return r; - } - - *idx = htole64(le64toh(*idx) + 1); - return 0; -} - -static int journal_file_link_entry_item(JournalFile *f, Object *o, uint64_t offset, uint64_t i) { - uint64_t p; - int r; - assert(f); - assert(o); - assert(offset > 0); - - p = le64toh(o->entry.items[i].object_offset); - if (p == 0) - return -EINVAL; - - r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); - if (r < 0) - return r; - - return link_entry_into_array_plus_one(f, - &o->data.entry_offset, - &o->data.entry_array_offset, - &o->data.n_entries, - offset); -} - -static int journal_file_link_entry(JournalFile *f, Object *o, uint64_t offset) { - uint64_t n, i; - int r; - - assert(f); - assert(o); - assert(offset > 0); - - if (o->object.type != OBJECT_ENTRY) - return -EINVAL; - - __sync_synchronize(); - - /* Link up the entry itself */ - r = link_entry_into_array(f, - &f->header->entry_array_offset, - &f->header->n_entries, - offset); - if (r < 0) - return r; - - /* log_debug("=> %s seqnr=%"PRIu64" n_entries=%"PRIu64, f->path, o->entry.seqnum, f->header->n_entries); */ - - if (f->header->head_entry_realtime == 0) - f->header->head_entry_realtime = o->entry.realtime; - - f->header->tail_entry_realtime = o->entry.realtime; - f->header->tail_entry_monotonic = o->entry.monotonic; - - f->tail_entry_monotonic_valid = true; - - /* Link up the items */ - n = journal_file_entry_n_items(o); - for (i = 0; i < n; i++) { - r = journal_file_link_entry_item(f, o, offset, i); - if (r < 0) - return r; - } - - return 0; -} - -static int journal_file_append_entry_internal( - JournalFile *f, - const dual_timestamp *ts, - uint64_t xor_hash, - const EntryItem items[], unsigned n_items, - uint64_t *seqnum, - Object **ret, uint64_t *offset) { - uint64_t np; - uint64_t osize; - Object *o; - int r; - - assert(f); - assert(items || n_items == 0); - assert(ts); - - osize = offsetof(Object, entry.items) + (n_items * sizeof(EntryItem)); - - r = journal_file_append_object(f, OBJECT_ENTRY, osize, &o, &np); - if (r < 0) - return r; - - o->entry.seqnum = htole64(journal_file_entry_seqnum(f, seqnum)); - memcpy(o->entry.items, items, n_items * sizeof(EntryItem)); - o->entry.realtime = htole64(ts->realtime); - o->entry.monotonic = htole64(ts->monotonic); - o->entry.xor_hash = htole64(xor_hash); - o->entry.boot_id = f->header->boot_id; - -#ifdef HAVE_GCRYPT - r = journal_file_hmac_put_object(f, OBJECT_ENTRY, o, np); - if (r < 0) - return r; -#endif - - r = journal_file_link_entry(f, o, np); - if (r < 0) - return r; - - if (ret) - *ret = o; - - if (offset) - *offset = np; - - return 0; -} - -void journal_file_post_change(JournalFile *f) { - assert(f); - - /* inotify() does not receive IN_MODIFY events from file - * accesses done via mmap(). After each access we hence - * trigger IN_MODIFY by truncating the journal file to its - * current size which triggers IN_MODIFY. */ - - __sync_synchronize(); - - if (ftruncate(f->fd, f->last_stat.st_size) < 0) - log_error_errno(errno, "Failed to truncate file to its own size: %m"); -} - -static int entry_item_cmp(const void *_a, const void *_b) { - const EntryItem *a = _a, *b = _b; - - if (le64toh(a->object_offset) < le64toh(b->object_offset)) - return -1; - if (le64toh(a->object_offset) > le64toh(b->object_offset)) - return 1; - return 0; -} - -int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const struct iovec iovec[], unsigned n_iovec, uint64_t *seqnum, Object **ret, uint64_t *offset) { - unsigned i; - EntryItem *items; - int r; - uint64_t xor_hash = 0; - struct dual_timestamp _ts; - - assert(f); - assert(iovec || n_iovec == 0); - - if (!ts) { - dual_timestamp_get(&_ts); - ts = &_ts; - } - - if (f->tail_entry_monotonic_valid && - ts->monotonic < le64toh(f->header->tail_entry_monotonic)) - return -EINVAL; - -#ifdef HAVE_GCRYPT - r = journal_file_maybe_append_tag(f, ts->realtime); - if (r < 0) - return r; -#endif - - /* alloca() can't take 0, hence let's allocate at least one */ - items = alloca(sizeof(EntryItem) * MAX(1u, n_iovec)); - - for (i = 0; i < n_iovec; i++) { - uint64_t p; - Object *o; - - r = journal_file_append_data(f, iovec[i].iov_base, iovec[i].iov_len, &o, &p); - if (r < 0) - return r; - - xor_hash ^= le64toh(o->data.hash); - items[i].object_offset = htole64(p); - items[i].hash = o->data.hash; - } - - /* Order by the position on disk, in order to improve seek - * times for rotating media. */ - qsort_safe(items, n_iovec, sizeof(EntryItem), entry_item_cmp); - - r = journal_file_append_entry_internal(f, ts, xor_hash, items, n_iovec, seqnum, ret, offset); - - /* If the memory mapping triggered a SIGBUS then we return an - * IO error and ignore the error code passed down to us, since - * it is very likely just an effect of a nullified replacement - * mapping page */ - - if (mmap_cache_got_sigbus(f->mmap, f->fd)) - r = -EIO; - - journal_file_post_change(f); - - return r; -} - -typedef struct ChainCacheItem { - uint64_t first; /* the array at the beginning of the chain */ - uint64_t array; /* the cached array */ - uint64_t begin; /* the first item in the cached array */ - uint64_t total; /* the total number of items in all arrays before this one in the chain */ - uint64_t last_index; /* the last index we looked at, to optimize locality when bisecting */ -} ChainCacheItem; - -static void chain_cache_put( - OrderedHashmap *h, - ChainCacheItem *ci, - uint64_t first, - uint64_t array, - uint64_t begin, - uint64_t total, - uint64_t last_index) { - - if (!ci) { - /* If the chain item to cache for this chain is the - * first one it's not worth caching anything */ - if (array == first) - return; - - if (ordered_hashmap_size(h) >= CHAIN_CACHE_MAX) { - ci = ordered_hashmap_steal_first(h); - assert(ci); - } else { - ci = new(ChainCacheItem, 1); - if (!ci) - return; - } - - ci->first = first; - - if (ordered_hashmap_put(h, &ci->first, ci) < 0) { - free(ci); - return; - } - } else - assert(ci->first == first); - - ci->array = array; - ci->begin = begin; - ci->total = total; - ci->last_index = last_index; -} - -static int generic_array_get( - JournalFile *f, - uint64_t first, - uint64_t i, - Object **ret, uint64_t *offset) { - - Object *o; - uint64_t p = 0, a, t = 0; - int r; - ChainCacheItem *ci; - - assert(f); - - a = first; - - /* Try the chain cache first */ - ci = ordered_hashmap_get(f->chain_cache, &first); - if (ci && i > ci->total) { - a = ci->array; - i -= ci->total; - t = ci->total; - } - - while (a > 0) { - uint64_t k; - - r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o); - if (r < 0) - return r; - - k = journal_file_entry_array_n_items(o); - if (i < k) { - p = le64toh(o->entry_array.items[i]); - goto found; - } - - i -= k; - t += k; - a = le64toh(o->entry_array.next_entry_array_offset); - } - - return 0; - -found: - /* Let's cache this item for the next invocation */ - chain_cache_put(f->chain_cache, ci, first, a, le64toh(o->entry_array.items[0]), t, i); - - r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o); - if (r < 0) - return r; - - if (ret) - *ret = o; - - if (offset) - *offset = p; - - return 1; -} - -static int generic_array_get_plus_one( - JournalFile *f, - uint64_t extra, - uint64_t first, - uint64_t i, - Object **ret, uint64_t *offset) { - - Object *o; - - assert(f); - - if (i == 0) { - int r; - - r = journal_file_move_to_object(f, OBJECT_ENTRY, extra, &o); - if (r < 0) - return r; - - if (ret) - *ret = o; - - if (offset) - *offset = extra; - - return 1; - } - - return generic_array_get(f, first, i-1, ret, offset); -} - -enum { - TEST_FOUND, - TEST_LEFT, - TEST_RIGHT -}; - -static int generic_array_bisect( - JournalFile *f, - uint64_t first, - uint64_t n, - uint64_t needle, - int (*test_object)(JournalFile *f, uint64_t p, uint64_t needle), - direction_t direction, - Object **ret, - uint64_t *offset, - uint64_t *idx) { - - uint64_t a, p, t = 0, i = 0, last_p = 0, last_index = (uint64_t) -1; - bool subtract_one = false; - Object *o, *array = NULL; - int r; - ChainCacheItem *ci; - - assert(f); - assert(test_object); - - /* Start with the first array in the chain */ - a = first; - - ci = ordered_hashmap_get(f->chain_cache, &first); - if (ci && n > ci->total) { - /* Ah, we have iterated this bisection array chain - * previously! Let's see if we can skip ahead in the - * chain, as far as the last time. But we can't jump - * backwards in the chain, so let's check that - * first. */ - - r = test_object(f, ci->begin, needle); - if (r < 0) - return r; - - if (r == TEST_LEFT) { - /* OK, what we are looking for is right of the - * begin of this EntryArray, so let's jump - * straight to previously cached array in the - * chain */ - - a = ci->array; - n -= ci->total; - t = ci->total; - last_index = ci->last_index; - } - } - - while (a > 0) { - uint64_t left, right, k, lp; - - r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &array); - if (r < 0) - return r; - - k = journal_file_entry_array_n_items(array); - right = MIN(k, n); - if (right <= 0) - return 0; - - i = right - 1; - lp = p = le64toh(array->entry_array.items[i]); - if (p <= 0) - return -EBADMSG; - - r = test_object(f, p, needle); - if (r < 0) - return r; - - if (r == TEST_FOUND) - r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT; - - if (r == TEST_RIGHT) { - left = 0; - right -= 1; - - if (last_index != (uint64_t) -1) { - assert(last_index <= right); - - /* If we cached the last index we - * looked at, let's try to not to jump - * too wildly around and see if we can - * limit the range to look at early to - * the immediate neighbors of the last - * index we looked at. */ - - if (last_index > 0) { - uint64_t x = last_index - 1; - - p = le64toh(array->entry_array.items[x]); - if (p <= 0) - return -EBADMSG; - - r = test_object(f, p, needle); - if (r < 0) - return r; - - if (r == TEST_FOUND) - r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT; - - if (r == TEST_RIGHT) - right = x; - else - left = x + 1; - } - - if (last_index < right) { - uint64_t y = last_index + 1; - - p = le64toh(array->entry_array.items[y]); - if (p <= 0) - return -EBADMSG; - - r = test_object(f, p, needle); - if (r < 0) - return r; - - if (r == TEST_FOUND) - r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT; - - if (r == TEST_RIGHT) - right = y; - else - left = y + 1; - } - } - - for (;;) { - if (left == right) { - if (direction == DIRECTION_UP) - subtract_one = true; - - i = left; - goto found; - } - - assert(left < right); - i = (left + right) / 2; - - p = le64toh(array->entry_array.items[i]); - if (p <= 0) - return -EBADMSG; - - r = test_object(f, p, needle); - if (r < 0) - return r; - - if (r == TEST_FOUND) - r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT; - - if (r == TEST_RIGHT) - right = i; - else - left = i + 1; - } - } - - if (k >= n) { - if (direction == DIRECTION_UP) { - i = n; - subtract_one = true; - goto found; - } - - return 0; - } - - last_p = lp; - - n -= k; - t += k; - last_index = (uint64_t) -1; - a = le64toh(array->entry_array.next_entry_array_offset); - } - - return 0; - -found: - if (subtract_one && t == 0 && i == 0) - return 0; - - /* Let's cache this item for the next invocation */ - chain_cache_put(f->chain_cache, ci, first, a, le64toh(array->entry_array.items[0]), t, subtract_one ? (i > 0 ? i-1 : (uint64_t) -1) : i); - - if (subtract_one && i == 0) - p = last_p; - else if (subtract_one) - p = le64toh(array->entry_array.items[i-1]); - else - p = le64toh(array->entry_array.items[i]); - - r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o); - if (r < 0) - return r; - - if (ret) - *ret = o; - - if (offset) - *offset = p; - - if (idx) - *idx = t + i + (subtract_one ? -1 : 0); - - return 1; -} - -static int generic_array_bisect_plus_one( - JournalFile *f, - uint64_t extra, - uint64_t first, - uint64_t n, - uint64_t needle, - int (*test_object)(JournalFile *f, uint64_t p, uint64_t needle), - direction_t direction, - Object **ret, - uint64_t *offset, - uint64_t *idx) { - - int r; - bool step_back = false; - Object *o; - - assert(f); - assert(test_object); - - if (n <= 0) - return 0; - - /* This bisects the array in object 'first', but first checks - * an extra */ - r = test_object(f, extra, needle); - if (r < 0) - return r; - - if (r == TEST_FOUND) - r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT; - - /* if we are looking with DIRECTION_UP then we need to first - see if in the actual array there is a matching entry, and - return the last one of that. But if there isn't any we need - to return this one. Hence remember this, and return it - below. */ - if (r == TEST_LEFT) - step_back = direction == DIRECTION_UP; - - if (r == TEST_RIGHT) { - if (direction == DIRECTION_DOWN) - goto found; - else - return 0; - } - - r = generic_array_bisect(f, first, n-1, needle, test_object, direction, ret, offset, idx); - - if (r == 0 && step_back) - goto found; - - if (r > 0 && idx) - (*idx) ++; - - return r; - -found: - r = journal_file_move_to_object(f, OBJECT_ENTRY, extra, &o); - if (r < 0) - return r; - - if (ret) - *ret = o; - - if (offset) - *offset = extra; - - if (idx) - *idx = 0; - - return 1; -} - -_pure_ static int test_object_offset(JournalFile *f, uint64_t p, uint64_t needle) { - assert(f); - assert(p > 0); - - if (p == needle) - return TEST_FOUND; - else if (p < needle) - return TEST_LEFT; - else - return TEST_RIGHT; -} - -static int test_object_seqnum(JournalFile *f, uint64_t p, uint64_t needle) { - Object *o; - int r; - - assert(f); - assert(p > 0); - - r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o); - if (r < 0) - return r; - - if (le64toh(o->entry.seqnum) == needle) - return TEST_FOUND; - else if (le64toh(o->entry.seqnum) < needle) - return TEST_LEFT; - else - return TEST_RIGHT; -} - -int journal_file_move_to_entry_by_seqnum( - JournalFile *f, - uint64_t seqnum, - direction_t direction, - Object **ret, - uint64_t *offset) { - - return generic_array_bisect(f, - le64toh(f->header->entry_array_offset), - le64toh(f->header->n_entries), - seqnum, - test_object_seqnum, - direction, - ret, offset, NULL); -} - -static int test_object_realtime(JournalFile *f, uint64_t p, uint64_t needle) { - Object *o; - int r; - - assert(f); - assert(p > 0); - - r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o); - if (r < 0) - return r; - - if (le64toh(o->entry.realtime) == needle) - return TEST_FOUND; - else if (le64toh(o->entry.realtime) < needle) - return TEST_LEFT; - else - return TEST_RIGHT; -} - -int journal_file_move_to_entry_by_realtime( - JournalFile *f, - uint64_t realtime, - direction_t direction, - Object **ret, - uint64_t *offset) { - - return generic_array_bisect(f, - le64toh(f->header->entry_array_offset), - le64toh(f->header->n_entries), - realtime, - test_object_realtime, - direction, - ret, offset, NULL); -} - -static int test_object_monotonic(JournalFile *f, uint64_t p, uint64_t needle) { - Object *o; - int r; - - assert(f); - assert(p > 0); - - r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o); - if (r < 0) - return r; - - if (le64toh(o->entry.monotonic) == needle) - return TEST_FOUND; - else if (le64toh(o->entry.monotonic) < needle) - return TEST_LEFT; - else - return TEST_RIGHT; -} - -static int find_data_object_by_boot_id( - JournalFile *f, - sd_id128_t boot_id, - Object **o, - uint64_t *b) { - - char t[sizeof("_BOOT_ID=")-1 + 32 + 1] = "_BOOT_ID="; - - sd_id128_to_string(boot_id, t + 9); - return journal_file_find_data_object(f, t, sizeof(t) - 1, o, b); -} - -int journal_file_move_to_entry_by_monotonic( - JournalFile *f, - sd_id128_t boot_id, - uint64_t monotonic, - direction_t direction, - Object **ret, - uint64_t *offset) { - - Object *o; - int r; - - assert(f); - - r = find_data_object_by_boot_id(f, boot_id, &o, NULL); - if (r < 0) - return r; - if (r == 0) - return -ENOENT; - - return generic_array_bisect_plus_one(f, - le64toh(o->data.entry_offset), - le64toh(o->data.entry_array_offset), - le64toh(o->data.n_entries), - monotonic, - test_object_monotonic, - direction, - ret, offset, NULL); -} - -void journal_file_reset_location(JournalFile *f) { - f->location_type = LOCATION_HEAD; - f->current_offset = 0; - f->current_seqnum = 0; - f->current_realtime = 0; - f->current_monotonic = 0; - zero(f->current_boot_id); - f->current_xor_hash = 0; -} - -void journal_file_save_location(JournalFile *f, Object *o, uint64_t offset) { - f->location_type = LOCATION_SEEK; - f->current_offset = offset; - f->current_seqnum = le64toh(o->entry.seqnum); - f->current_realtime = le64toh(o->entry.realtime); - f->current_monotonic = le64toh(o->entry.monotonic); - f->current_boot_id = o->entry.boot_id; - f->current_xor_hash = le64toh(o->entry.xor_hash); -} - -int journal_file_compare_locations(JournalFile *af, JournalFile *bf) { - assert(af); - assert(bf); - assert(af->location_type == LOCATION_SEEK); - assert(bf->location_type == LOCATION_SEEK); - - /* If contents and timestamps match, these entries are - * identical, even if the seqnum does not match */ - if (sd_id128_equal(af->current_boot_id, bf->current_boot_id) && - af->current_monotonic == bf->current_monotonic && - af->current_realtime == bf->current_realtime && - af->current_xor_hash == bf->current_xor_hash) - return 0; - - if (sd_id128_equal(af->header->seqnum_id, bf->header->seqnum_id)) { - - /* If this is from the same seqnum source, compare - * seqnums */ - if (af->current_seqnum < bf->current_seqnum) - return -1; - if (af->current_seqnum > bf->current_seqnum) - return 1; - - /* Wow! This is weird, different data but the same - * seqnums? Something is borked, but let's make the - * best of it and compare by time. */ - } - - if (sd_id128_equal(af->current_boot_id, bf->current_boot_id)) { - - /* If the boot id matches, compare monotonic time */ - if (af->current_monotonic < bf->current_monotonic) - return -1; - if (af->current_monotonic > bf->current_monotonic) - return 1; - } - - /* Otherwise, compare UTC time */ - if (af->current_realtime < bf->current_realtime) - return -1; - if (af->current_realtime > bf->current_realtime) - return 1; - - /* Finally, compare by contents */ - if (af->current_xor_hash < bf->current_xor_hash) - return -1; - if (af->current_xor_hash > bf->current_xor_hash) - return 1; - - return 0; -} - -int journal_file_next_entry( - JournalFile *f, - uint64_t p, - direction_t direction, - Object **ret, uint64_t *offset) { - - uint64_t i, n, ofs; - int r; - - assert(f); - - n = le64toh(f->header->n_entries); - if (n <= 0) - return 0; - - if (p == 0) - i = direction == DIRECTION_DOWN ? 0 : n - 1; - else { - r = generic_array_bisect(f, - le64toh(f->header->entry_array_offset), - le64toh(f->header->n_entries), - p, - test_object_offset, - DIRECTION_DOWN, - NULL, NULL, - &i); - if (r <= 0) - return r; - - if (direction == DIRECTION_DOWN) { - if (i >= n - 1) - return 0; - - i++; - } else { - if (i <= 0) - return 0; - - i--; - } - } - - /* And jump to it */ - r = generic_array_get(f, - le64toh(f->header->entry_array_offset), - i, - ret, &ofs); - if (r <= 0) - return r; - - if (p > 0 && - (direction == DIRECTION_DOWN ? ofs <= p : ofs >= p)) { - log_debug("%s: entry array corrupted at entry %"PRIu64, - f->path, i); - return -EBADMSG; - } - - if (offset) - *offset = ofs; - - return 1; -} - -int journal_file_next_entry_for_data( - JournalFile *f, - Object *o, uint64_t p, - uint64_t data_offset, - direction_t direction, - Object **ret, uint64_t *offset) { - - uint64_t n, i; - int r; - Object *d; - - assert(f); - assert(p > 0 || !o); - - r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d); - if (r < 0) - return r; - - n = le64toh(d->data.n_entries); - if (n <= 0) - return n; - - if (!o) - i = direction == DIRECTION_DOWN ? 0 : n - 1; - else { - if (o->object.type != OBJECT_ENTRY) - return -EINVAL; - - r = generic_array_bisect_plus_one(f, - le64toh(d->data.entry_offset), - le64toh(d->data.entry_array_offset), - le64toh(d->data.n_entries), - p, - test_object_offset, - DIRECTION_DOWN, - NULL, NULL, - &i); - - if (r <= 0) - return r; - - if (direction == DIRECTION_DOWN) { - if (i >= n - 1) - return 0; - - i++; - } else { - if (i <= 0) - return 0; - - i--; - } - - } - - return generic_array_get_plus_one(f, - le64toh(d->data.entry_offset), - le64toh(d->data.entry_array_offset), - i, - ret, offset); -} - -int journal_file_move_to_entry_by_offset_for_data( - JournalFile *f, - uint64_t data_offset, - uint64_t p, - direction_t direction, - Object **ret, uint64_t *offset) { - - int r; - Object *d; - - assert(f); - - r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d); - if (r < 0) - return r; - - return generic_array_bisect_plus_one(f, - le64toh(d->data.entry_offset), - le64toh(d->data.entry_array_offset), - le64toh(d->data.n_entries), - p, - test_object_offset, - direction, - ret, offset, NULL); -} - -int journal_file_move_to_entry_by_monotonic_for_data( - JournalFile *f, - uint64_t data_offset, - sd_id128_t boot_id, - uint64_t monotonic, - direction_t direction, - Object **ret, uint64_t *offset) { - - Object *o, *d; - int r; - uint64_t b, z; - - assert(f); - - /* First, seek by time */ - r = find_data_object_by_boot_id(f, boot_id, &o, &b); - if (r < 0) - return r; - if (r == 0) - return -ENOENT; - - r = generic_array_bisect_plus_one(f, - le64toh(o->data.entry_offset), - le64toh(o->data.entry_array_offset), - le64toh(o->data.n_entries), - monotonic, - test_object_monotonic, - direction, - NULL, &z, NULL); - if (r <= 0) - return r; - - /* And now, continue seeking until we find an entry that - * exists in both bisection arrays */ - - for (;;) { - Object *qo; - uint64_t p, q; - - r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d); - if (r < 0) - return r; - - r = generic_array_bisect_plus_one(f, - le64toh(d->data.entry_offset), - le64toh(d->data.entry_array_offset), - le64toh(d->data.n_entries), - z, - test_object_offset, - direction, - NULL, &p, NULL); - if (r <= 0) - return r; - - r = journal_file_move_to_object(f, OBJECT_DATA, b, &o); - if (r < 0) - return r; - - r = generic_array_bisect_plus_one(f, - le64toh(o->data.entry_offset), - le64toh(o->data.entry_array_offset), - le64toh(o->data.n_entries), - p, - test_object_offset, - direction, - &qo, &q, NULL); - - if (r <= 0) - return r; - - if (p == q) { - if (ret) - *ret = qo; - if (offset) - *offset = q; - - return 1; - } - - z = q; - } -} - -int journal_file_move_to_entry_by_seqnum_for_data( - JournalFile *f, - uint64_t data_offset, - uint64_t seqnum, - direction_t direction, - Object **ret, uint64_t *offset) { - - Object *d; - int r; - - assert(f); - - r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d); - if (r < 0) - return r; - - return generic_array_bisect_plus_one(f, - le64toh(d->data.entry_offset), - le64toh(d->data.entry_array_offset), - le64toh(d->data.n_entries), - seqnum, - test_object_seqnum, - direction, - ret, offset, NULL); -} - -int journal_file_move_to_entry_by_realtime_for_data( - JournalFile *f, - uint64_t data_offset, - uint64_t realtime, - direction_t direction, - Object **ret, uint64_t *offset) { - - Object *d; - int r; - - assert(f); - - r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d); - if (r < 0) - return r; - - return generic_array_bisect_plus_one(f, - le64toh(d->data.entry_offset), - le64toh(d->data.entry_array_offset), - le64toh(d->data.n_entries), - realtime, - test_object_realtime, - direction, - ret, offset, NULL); -} - -void journal_file_dump(JournalFile *f) { - Object *o; - int r; - uint64_t p; - - assert(f); - - journal_file_print_header(f); - - p = le64toh(f->header->header_size); - while (p != 0) { - r = journal_file_move_to_object(f, OBJECT_UNUSED, p, &o); - if (r < 0) - goto fail; - - switch (o->object.type) { - - case OBJECT_UNUSED: - printf("Type: OBJECT_UNUSED\n"); - break; - - case OBJECT_DATA: - printf("Type: OBJECT_DATA\n"); - break; - - case OBJECT_FIELD: - printf("Type: OBJECT_FIELD\n"); - break; - - case OBJECT_ENTRY: - printf("Type: OBJECT_ENTRY seqnum=%"PRIu64" monotonic=%"PRIu64" realtime=%"PRIu64"\n", - le64toh(o->entry.seqnum), - le64toh(o->entry.monotonic), - le64toh(o->entry.realtime)); - break; - - case OBJECT_FIELD_HASH_TABLE: - printf("Type: OBJECT_FIELD_HASH_TABLE\n"); - break; - - case OBJECT_DATA_HASH_TABLE: - printf("Type: OBJECT_DATA_HASH_TABLE\n"); - break; - - case OBJECT_ENTRY_ARRAY: - printf("Type: OBJECT_ENTRY_ARRAY\n"); - break; - - case OBJECT_TAG: - printf("Type: OBJECT_TAG seqnum=%"PRIu64" epoch=%"PRIu64"\n", - le64toh(o->tag.seqnum), - le64toh(o->tag.epoch)); - break; - - default: - printf("Type: unknown (%i)\n", o->object.type); - break; - } - - if (o->object.flags & OBJECT_COMPRESSION_MASK) - printf("Flags: %s\n", - object_compressed_to_string(o->object.flags & OBJECT_COMPRESSION_MASK)); - - if (p == le64toh(f->header->tail_object_offset)) - p = 0; - else - p = p + ALIGN64(le64toh(o->object.size)); - } - - return; -fail: - log_error("File corrupt"); -} - -static const char* format_timestamp_safe(char *buf, size_t l, usec_t t) { - const char *x; - - x = format_timestamp(buf, l, t); - if (x) - return x; - return " --- "; -} - -void journal_file_print_header(JournalFile *f) { - char a[33], b[33], c[33], d[33]; - char x[FORMAT_TIMESTAMP_MAX], y[FORMAT_TIMESTAMP_MAX], z[FORMAT_TIMESTAMP_MAX]; - struct stat st; - char bytes[FORMAT_BYTES_MAX]; - - assert(f); - - printf("File Path: %s\n" - "File ID: %s\n" - "Machine ID: %s\n" - "Boot ID: %s\n" - "Sequential Number ID: %s\n" - "State: %s\n" - "Compatible Flags:%s%s\n" - "Incompatible Flags:%s%s%s\n" - "Header size: %"PRIu64"\n" - "Arena size: %"PRIu64"\n" - "Data Hash Table Size: %"PRIu64"\n" - "Field Hash Table Size: %"PRIu64"\n" - "Rotate Suggested: %s\n" - "Head Sequential Number: %"PRIu64"\n" - "Tail Sequential Number: %"PRIu64"\n" - "Head Realtime Timestamp: %s\n" - "Tail Realtime Timestamp: %s\n" - "Tail Monotonic Timestamp: %s\n" - "Objects: %"PRIu64"\n" - "Entry Objects: %"PRIu64"\n", - f->path, - sd_id128_to_string(f->header->file_id, a), - sd_id128_to_string(f->header->machine_id, b), - sd_id128_to_string(f->header->boot_id, c), - sd_id128_to_string(f->header->seqnum_id, d), - f->header->state == STATE_OFFLINE ? "OFFLINE" : - f->header->state == STATE_ONLINE ? "ONLINE" : - f->header->state == STATE_ARCHIVED ? "ARCHIVED" : "UNKNOWN", - JOURNAL_HEADER_SEALED(f->header) ? " SEALED" : "", - (le32toh(f->header->compatible_flags) & ~HEADER_COMPATIBLE_ANY) ? " ???" : "", - JOURNAL_HEADER_COMPRESSED_XZ(f->header) ? " COMPRESSED-XZ" : "", - JOURNAL_HEADER_COMPRESSED_LZ4(f->header) ? " COMPRESSED-LZ4" : "", - (le32toh(f->header->incompatible_flags) & ~HEADER_INCOMPATIBLE_ANY) ? " ???" : "", - le64toh(f->header->header_size), - le64toh(f->header->arena_size), - le64toh(f->header->data_hash_table_size) / sizeof(HashItem), - le64toh(f->header->field_hash_table_size) / sizeof(HashItem), - yes_no(journal_file_rotate_suggested(f, 0)), - le64toh(f->header->head_entry_seqnum), - le64toh(f->header->tail_entry_seqnum), - format_timestamp_safe(x, sizeof(x), le64toh(f->header->head_entry_realtime)), - format_timestamp_safe(y, sizeof(y), le64toh(f->header->tail_entry_realtime)), - format_timespan(z, sizeof(z), le64toh(f->header->tail_entry_monotonic), USEC_PER_MSEC), - le64toh(f->header->n_objects), - le64toh(f->header->n_entries)); - - if (JOURNAL_HEADER_CONTAINS(f->header, n_data)) - printf("Data Objects: %"PRIu64"\n" - "Data Hash Table Fill: %.1f%%\n", - le64toh(f->header->n_data), - 100.0 * (double) le64toh(f->header->n_data) / ((double) (le64toh(f->header->data_hash_table_size) / sizeof(HashItem)))); - - if (JOURNAL_HEADER_CONTAINS(f->header, n_fields)) - printf("Field Objects: %"PRIu64"\n" - "Field Hash Table Fill: %.1f%%\n", - le64toh(f->header->n_fields), - 100.0 * (double) le64toh(f->header->n_fields) / ((double) (le64toh(f->header->field_hash_table_size) / sizeof(HashItem)))); - - if (JOURNAL_HEADER_CONTAINS(f->header, n_tags)) - printf("Tag Objects: %"PRIu64"\n", - le64toh(f->header->n_tags)); - if (JOURNAL_HEADER_CONTAINS(f->header, n_entry_arrays)) - printf("Entry Array Objects: %"PRIu64"\n", - le64toh(f->header->n_entry_arrays)); - - if (fstat(f->fd, &st) >= 0) - printf("Disk usage: %s\n", format_bytes(bytes, sizeof(bytes), (off_t) st.st_blocks * 512ULL)); -} - -int journal_file_open( - const char *fname, - int flags, - mode_t mode, - bool compress, - bool seal, - JournalMetrics *metrics, - MMapCache *mmap_cache, - JournalFile *template, - JournalFile **ret) { - - bool newly_created = false; - JournalFile *f; - void *h; - int r; - - assert(fname); - assert(ret); - - if ((flags & O_ACCMODE) != O_RDONLY && - (flags & O_ACCMODE) != O_RDWR) - return -EINVAL; - - if (!endswith(fname, ".journal") && - !endswith(fname, ".journal~")) - return -EINVAL; - - f = new0(JournalFile, 1); - if (!f) - return -ENOMEM; - - f->fd = -1; - f->mode = mode; - - f->flags = flags; - f->prot = prot_from_flags(flags); - f->writable = (flags & O_ACCMODE) != O_RDONLY; -#if defined(HAVE_LZ4) - f->compress_lz4 = compress; -#elif defined(HAVE_XZ) - f->compress_xz = compress; -#endif -#ifdef HAVE_GCRYPT - f->seal = seal; -#endif - - if (mmap_cache) - f->mmap = mmap_cache_ref(mmap_cache); - else { - f->mmap = mmap_cache_new(); - if (!f->mmap) { - r = -ENOMEM; - goto fail; - } - } - - f->path = strdup(fname); - if (!f->path) { - r = -ENOMEM; - goto fail; - } - - f->chain_cache = ordered_hashmap_new(&uint64_hash_ops); - if (!f->chain_cache) { - r = -ENOMEM; - goto fail; - } - - f->fd = open(f->path, f->flags|O_CLOEXEC, f->mode); - if (f->fd < 0) { - r = -errno; - goto fail; - } - - r = journal_file_fstat(f); - if (r < 0) - goto fail; - - if (f->last_stat.st_size == 0 && f->writable) { - - /* Before we write anything, turn off COW logic. Given - * our write pattern that is quite unfriendly to COW - * file systems this should greatly improve - * performance on COW file systems, such as btrfs, at - * the expense of data integrity features (which - * shouldn't be too bad, given that we do our own - * checksumming). */ - r = chattr_fd(f->fd, true, FS_NOCOW_FL); - if (r < 0 && r != -ENOTTY) - log_warning_errno(r, "Failed to set file attributes: %m"); - - /* Let's attach the creation time to the journal file, - * so that the vacuuming code knows the age of this - * file even if the file might end up corrupted one - * day... Ideally we'd just use the creation time many - * file systems maintain for each file, but there is - * currently no usable API to query this, hence let's - * emulate this via extended attributes. If extended - * attributes are not supported we'll just skip this, - * and rely solely on mtime/atime/ctime of the file. */ - - fd_setcrtime(f->fd, 0); - -#ifdef HAVE_GCRYPT - /* Try to load the FSPRG state, and if we can't, then - * just don't do sealing */ - if (f->seal) { - r = journal_file_fss_load(f); - if (r < 0) - f->seal = false; - } -#endif - - r = journal_file_init_header(f, template); - if (r < 0) - goto fail; - - r = journal_file_fstat(f); - if (r < 0) - goto fail; - - newly_created = true; - } - - if (f->last_stat.st_size < (off_t) HEADER_SIZE_MIN) { - r = -EIO; - goto fail; - } - - r = mmap_cache_get(f->mmap, f->fd, f->prot, CONTEXT_HEADER, true, 0, PAGE_ALIGN(sizeof(Header)), &f->last_stat, &h); - if (r < 0) - goto fail; - - f->header = h; - - if (!newly_created) { - r = journal_file_verify_header(f); - if (r < 0) - goto fail; - } - -#ifdef HAVE_GCRYPT - if (!newly_created && f->writable) { - r = journal_file_fss_load(f); - if (r < 0) - goto fail; - } -#endif - - if (f->writable) { - if (metrics) { - journal_default_metrics(metrics, f->fd); - f->metrics = *metrics; - } else if (template) - f->metrics = template->metrics; - - r = journal_file_refresh_header(f); - if (r < 0) - goto fail; - } - -#ifdef HAVE_GCRYPT - r = journal_file_hmac_setup(f); - if (r < 0) - goto fail; -#endif - - if (newly_created) { - r = journal_file_setup_field_hash_table(f); - if (r < 0) - goto fail; - - r = journal_file_setup_data_hash_table(f); - if (r < 0) - goto fail; - -#ifdef HAVE_GCRYPT - r = journal_file_append_first_tag(f); - if (r < 0) - goto fail; -#endif - } - - r = journal_file_map_field_hash_table(f); - if (r < 0) - goto fail; - - r = journal_file_map_data_hash_table(f); - if (r < 0) - goto fail; - - if (mmap_cache_got_sigbus(f->mmap, f->fd)) { - r = -EIO; - goto fail; - } - - *ret = f; - return 0; - -fail: - if (f->fd >= 0 && mmap_cache_got_sigbus(f->mmap, f->fd)) - r = -EIO; - - journal_file_close(f); - - return r; -} - -int journal_file_rotate(JournalFile **f, bool compress, bool seal) { - _cleanup_free_ char *p = NULL; - size_t l; - JournalFile *old_file, *new_file = NULL; - int r; - - assert(f); - assert(*f); - - old_file = *f; - - if (!old_file->writable) - return -EINVAL; - - if (!endswith(old_file->path, ".journal")) - return -EINVAL; - - l = strlen(old_file->path); - r = asprintf(&p, "%.*s@" SD_ID128_FORMAT_STR "-%016"PRIx64"-%016"PRIx64".journal", - (int) l - 8, old_file->path, - SD_ID128_FORMAT_VAL(old_file->header->seqnum_id), - le64toh((*f)->header->head_entry_seqnum), - le64toh((*f)->header->head_entry_realtime)); - if (r < 0) - return -ENOMEM; - - /* Try to rename the file to the archived version. If the file - * already was deleted, we'll get ENOENT, let's ignore that - * case. */ - r = rename(old_file->path, p); - if (r < 0 && errno != ENOENT) - return -errno; - - old_file->header->state = STATE_ARCHIVED; - - /* Currently, btrfs is not very good with out write patterns - * and fragments heavily. Let's defrag our journal files when - * we archive them */ - old_file->defrag_on_close = true; - - r = journal_file_open(old_file->path, old_file->flags, old_file->mode, compress, seal, NULL, old_file->mmap, old_file, &new_file); - journal_file_close(old_file); - - *f = new_file; - return r; -} - -int journal_file_open_reliably( - const char *fname, - int flags, - mode_t mode, - bool compress, - bool seal, - JournalMetrics *metrics, - MMapCache *mmap_cache, - JournalFile *template, - JournalFile **ret) { - - int r; - size_t l; - _cleanup_free_ char *p = NULL; - - r = journal_file_open(fname, flags, mode, compress, seal, - metrics, mmap_cache, template, ret); - if (!IN_SET(r, - -EBADMSG, /* corrupted */ - -ENODATA, /* truncated */ - -EHOSTDOWN, /* other machine */ - -EPROTONOSUPPORT, /* incompatible feature */ - -EBUSY, /* unclean shutdown */ - -ESHUTDOWN, /* already archived */ - -EIO, /* IO error, including SIGBUS on mmap */ - -EIDRM /* File has been deleted */)) - return r; - - if ((flags & O_ACCMODE) == O_RDONLY) - return r; - - if (!(flags & O_CREAT)) - return r; - - if (!endswith(fname, ".journal")) - return r; - - /* The file is corrupted. Rotate it away and try it again (but only once) */ - - l = strlen(fname); - if (asprintf(&p, "%.*s@%016"PRIx64 "-%016"PRIx64 ".journal~", - (int) l - 8, fname, - now(CLOCK_REALTIME), - random_u64()) < 0) - return -ENOMEM; - - r = rename(fname, p); - if (r < 0) - return -errno; - - /* btrfs doesn't cope well with our write pattern and - * fragments heavily. Let's defrag all files we rotate */ - - (void) chattr_path(p, false, FS_NOCOW_FL); - (void) btrfs_defrag(p); - - log_warning("File %s corrupted or uncleanly shut down, renaming and replacing.", fname); - - return journal_file_open(fname, flags, mode, compress, seal, - metrics, mmap_cache, template, ret); -} - -int journal_file_copy_entry(JournalFile *from, JournalFile *to, Object *o, uint64_t p, uint64_t *seqnum, Object **ret, uint64_t *offset) { - uint64_t i, n; - uint64_t q, xor_hash = 0; - int r; - EntryItem *items; - dual_timestamp ts; - - assert(from); - assert(to); - assert(o); - assert(p); - - if (!to->writable) - return -EPERM; - - ts.monotonic = le64toh(o->entry.monotonic); - ts.realtime = le64toh(o->entry.realtime); - - n = journal_file_entry_n_items(o); - /* alloca() can't take 0, hence let's allocate at least one */ - items = alloca(sizeof(EntryItem) * MAX(1u, n)); - - for (i = 0; i < n; i++) { - uint64_t l, h; - le64_t le_hash; - size_t t; - void *data; - Object *u; - - q = le64toh(o->entry.items[i].object_offset); - le_hash = o->entry.items[i].hash; - - r = journal_file_move_to_object(from, OBJECT_DATA, q, &o); - if (r < 0) - return r; - - if (le_hash != o->data.hash) - return -EBADMSG; - - l = le64toh(o->object.size) - offsetof(Object, data.payload); - t = (size_t) l; - - /* We hit the limit on 32bit machines */ - if ((uint64_t) t != l) - return -E2BIG; - - if (o->object.flags & OBJECT_COMPRESSION_MASK) { -#if defined(HAVE_XZ) || defined(HAVE_LZ4) - size_t rsize = 0; - - r = decompress_blob(o->object.flags & OBJECT_COMPRESSION_MASK, - o->data.payload, l, &from->compress_buffer, &from->compress_buffer_size, &rsize, 0); - if (r < 0) - return r; - - data = from->compress_buffer; - l = rsize; -#else - return -EPROTONOSUPPORT; -#endif - } else - data = o->data.payload; - - r = journal_file_append_data(to, data, l, &u, &h); - if (r < 0) - return r; - - xor_hash ^= le64toh(u->data.hash); - items[i].object_offset = htole64(h); - items[i].hash = u->data.hash; - - r = journal_file_move_to_object(from, OBJECT_ENTRY, p, &o); - if (r < 0) - return r; - } - - r = journal_file_append_entry_internal(to, &ts, xor_hash, items, n, seqnum, ret, offset); - - if (mmap_cache_got_sigbus(to->mmap, to->fd)) - return -EIO; - - return r; -} - -void journal_default_metrics(JournalMetrics *m, int fd) { - uint64_t fs_size = 0; - struct statvfs ss; - char a[FORMAT_BYTES_MAX], b[FORMAT_BYTES_MAX], c[FORMAT_BYTES_MAX], d[FORMAT_BYTES_MAX]; - - assert(m); - assert(fd >= 0); - - if (fstatvfs(fd, &ss) >= 0) - fs_size = ss.f_frsize * ss.f_blocks; - - if (m->max_use == (uint64_t) -1) { - - if (fs_size > 0) { - m->max_use = PAGE_ALIGN(fs_size / 10); /* 10% of file system size */ - - if (m->max_use > DEFAULT_MAX_USE_UPPER) - m->max_use = DEFAULT_MAX_USE_UPPER; - - if (m->max_use < DEFAULT_MAX_USE_LOWER) - m->max_use = DEFAULT_MAX_USE_LOWER; - } else - m->max_use = DEFAULT_MAX_USE_LOWER; - } else { - m->max_use = PAGE_ALIGN(m->max_use); - - if (m->max_use < JOURNAL_FILE_SIZE_MIN*2) - m->max_use = JOURNAL_FILE_SIZE_MIN*2; - } - - if (m->max_size == (uint64_t) -1) { - m->max_size = PAGE_ALIGN(m->max_use / 8); /* 8 chunks */ - - if (m->max_size > DEFAULT_MAX_SIZE_UPPER) - m->max_size = DEFAULT_MAX_SIZE_UPPER; - } else - m->max_size = PAGE_ALIGN(m->max_size); - - if (m->max_size < JOURNAL_FILE_SIZE_MIN) - m->max_size = JOURNAL_FILE_SIZE_MIN; - - if (m->max_size*2 > m->max_use) - m->max_use = m->max_size*2; - - if (m->min_size == (uint64_t) -1) - m->min_size = JOURNAL_FILE_SIZE_MIN; - else { - m->min_size = PAGE_ALIGN(m->min_size); - - if (m->min_size < JOURNAL_FILE_SIZE_MIN) - m->min_size = JOURNAL_FILE_SIZE_MIN; - - if (m->min_size > m->max_size) - m->max_size = m->min_size; - } - - if (m->keep_free == (uint64_t) -1) { - - if (fs_size > 0) { - m->keep_free = PAGE_ALIGN(fs_size * 3 / 20); /* 15% of file system size */ - - if (m->keep_free > DEFAULT_KEEP_FREE_UPPER) - m->keep_free = DEFAULT_KEEP_FREE_UPPER; - - } else - m->keep_free = DEFAULT_KEEP_FREE; - } - - log_debug("Fixed max_use=%s max_size=%s min_size=%s keep_free=%s", - format_bytes(a, sizeof(a), m->max_use), - format_bytes(b, sizeof(b), m->max_size), - format_bytes(c, sizeof(c), m->min_size), - format_bytes(d, sizeof(d), m->keep_free)); -} - -int journal_file_get_cutoff_realtime_usec(JournalFile *f, usec_t *from, usec_t *to) { - assert(f); - assert(from || to); - - if (from) { - if (f->header->head_entry_realtime == 0) - return -ENOENT; - - *from = le64toh(f->header->head_entry_realtime); - } - - if (to) { - if (f->header->tail_entry_realtime == 0) - return -ENOENT; - - *to = le64toh(f->header->tail_entry_realtime); - } - - return 1; -} - -int journal_file_get_cutoff_monotonic_usec(JournalFile *f, sd_id128_t boot_id, usec_t *from, usec_t *to) { - Object *o; - uint64_t p; - int r; - - assert(f); - assert(from || to); - - r = find_data_object_by_boot_id(f, boot_id, &o, &p); - if (r <= 0) - return r; - - if (le64toh(o->data.n_entries) <= 0) - return 0; - - if (from) { - r = journal_file_move_to_object(f, OBJECT_ENTRY, le64toh(o->data.entry_offset), &o); - if (r < 0) - return r; - - *from = le64toh(o->entry.monotonic); - } - - if (to) { - r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); - if (r < 0) - return r; - - r = generic_array_get_plus_one(f, - le64toh(o->data.entry_offset), - le64toh(o->data.entry_array_offset), - le64toh(o->data.n_entries)-1, - &o, NULL); - if (r <= 0) - return r; - - *to = le64toh(o->entry.monotonic); - } - - return 1; -} - -bool journal_file_rotate_suggested(JournalFile *f, usec_t max_file_usec) { - assert(f); - - /* If we gained new header fields we gained new features, - * hence suggest a rotation */ - if (le64toh(f->header->header_size) < sizeof(Header)) { - log_debug("%s uses an outdated header, suggesting rotation.", f->path); - return true; - } - - /* Let's check if the hash tables grew over a certain fill - * level (75%, borrowing this value from Java's hash table - * implementation), and if so suggest a rotation. To calculate - * the fill level we need the n_data field, which only exists - * in newer versions. */ - - if (JOURNAL_HEADER_CONTAINS(f->header, n_data)) - if (le64toh(f->header->n_data) * 4ULL > (le64toh(f->header->data_hash_table_size) / sizeof(HashItem)) * 3ULL) { - log_debug("Data hash table of %s has a fill level at %.1f (%"PRIu64" of %"PRIu64" items, %llu file size, %"PRIu64" bytes per hash table item), suggesting rotation.", - f->path, - 100.0 * (double) le64toh(f->header->n_data) / ((double) (le64toh(f->header->data_hash_table_size) / sizeof(HashItem))), - le64toh(f->header->n_data), - le64toh(f->header->data_hash_table_size) / sizeof(HashItem), - (unsigned long long) f->last_stat.st_size, - f->last_stat.st_size / le64toh(f->header->n_data)); - return true; - } - - if (JOURNAL_HEADER_CONTAINS(f->header, n_fields)) - if (le64toh(f->header->n_fields) * 4ULL > (le64toh(f->header->field_hash_table_size) / sizeof(HashItem)) * 3ULL) { - log_debug("Field hash table of %s has a fill level at %.1f (%"PRIu64" of %"PRIu64" items), suggesting rotation.", - f->path, - 100.0 * (double) le64toh(f->header->n_fields) / ((double) (le64toh(f->header->field_hash_table_size) / sizeof(HashItem))), - le64toh(f->header->n_fields), - le64toh(f->header->field_hash_table_size) / sizeof(HashItem)); - return true; - } - - /* Are the data objects properly indexed by field objects? */ - if (JOURNAL_HEADER_CONTAINS(f->header, n_data) && - JOURNAL_HEADER_CONTAINS(f->header, n_fields) && - le64toh(f->header->n_data) > 0 && - le64toh(f->header->n_fields) == 0) - return true; - - if (max_file_usec > 0) { - usec_t t, h; - - h = le64toh(f->header->head_entry_realtime); - t = now(CLOCK_REALTIME); - - if (h > 0 && t > h + max_file_usec) - return true; - } - - return false; -} diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h deleted file mode 100644 index 403c8f760c..0000000000 --- a/src/journal/journal-file.h +++ /dev/null @@ -1,231 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <inttypes.h> - -#ifdef HAVE_GCRYPT -#include <gcrypt.h> -#endif - -#include "sd-id128.h" - -#include "sparse-endian.h" -#include "journal-def.h" -#include "macro.h" -#include "mmap-cache.h" -#include "hashmap.h" - -typedef struct JournalMetrics { - uint64_t max_use; - uint64_t use; - uint64_t max_size; - uint64_t min_size; - uint64_t keep_free; -} JournalMetrics; - -typedef enum direction { - DIRECTION_UP, - DIRECTION_DOWN -} direction_t; - -typedef enum LocationType { - /* The first and last entries, resp. */ - LOCATION_HEAD, - LOCATION_TAIL, - - /* We already read the entry we currently point to, and the - * next one to read should probably not be this one again. */ - LOCATION_DISCRETE, - - /* We should seek to the precise location specified, and - * return it, as we haven't read it yet. */ - LOCATION_SEEK -} LocationType; - -typedef struct JournalFile { - int fd; - - mode_t mode; - - int flags; - int prot; - bool writable:1; - bool compress_xz:1; - bool compress_lz4:1; - bool seal:1; - bool defrag_on_close:1; - - bool tail_entry_monotonic_valid:1; - - direction_t last_direction; - LocationType location_type; - uint64_t last_n_entries; - - char *path; - struct stat last_stat; - usec_t last_stat_usec; - - Header *header; - HashItem *data_hash_table; - HashItem *field_hash_table; - - uint64_t current_offset; - uint64_t current_seqnum; - uint64_t current_realtime; - uint64_t current_monotonic; - sd_id128_t current_boot_id; - uint64_t current_xor_hash; - - JournalMetrics metrics; - MMapCache *mmap; - - OrderedHashmap *chain_cache; - -#if defined(HAVE_XZ) || defined(HAVE_LZ4) - void *compress_buffer; - size_t compress_buffer_size; -#endif - -#ifdef HAVE_GCRYPT - gcry_md_hd_t hmac; - bool hmac_running; - - FSSHeader *fss_file; - size_t fss_file_size; - - uint64_t fss_start_usec; - uint64_t fss_interval_usec; - - void *fsprg_state; - size_t fsprg_state_size; - - void *fsprg_seed; - size_t fsprg_seed_size; -#endif -} JournalFile; - -int journal_file_open( - const char *fname, - int flags, - mode_t mode, - bool compress, - bool seal, - JournalMetrics *metrics, - MMapCache *mmap_cache, - JournalFile *template, - JournalFile **ret); - -int journal_file_set_offline(JournalFile *f); -void journal_file_close(JournalFile *j); - -int journal_file_open_reliably( - const char *fname, - int flags, - mode_t mode, - bool compress, - bool seal, - JournalMetrics *metrics, - MMapCache *mmap_cache, - JournalFile *template, - JournalFile **ret); - -#define ALIGN64(x) (((x) + 7ULL) & ~7ULL) -#define VALID64(x) (((x) & 7ULL) == 0ULL) - -/* Use six characters to cover the offsets common in smallish journal - * files without adding too many zeros. */ -#define OFSfmt "%06"PRIx64 - -static inline bool VALID_REALTIME(uint64_t u) { - /* This considers timestamps until the year 3112 valid. That should be plenty room... */ - return u > 0 && u < (1ULL << 55); -} - -static inline bool VALID_MONOTONIC(uint64_t u) { - /* This considers timestamps until 1142 years of runtime valid. */ - return u < (1ULL << 55); -} - -static inline bool VALID_EPOCH(uint64_t u) { - /* This allows changing the key for 1142 years, every usec. */ - return u < (1ULL << 55); -} - -#define JOURNAL_HEADER_CONTAINS(h, field) \ - (le64toh((h)->header_size) >= offsetof(Header, field) + sizeof((h)->field)) - -#define JOURNAL_HEADER_SEALED(h) \ - (!!(le32toh((h)->compatible_flags) & HEADER_COMPATIBLE_SEALED)) - -#define JOURNAL_HEADER_COMPRESSED_XZ(h) \ - (!!(le32toh((h)->incompatible_flags) & HEADER_INCOMPATIBLE_COMPRESSED_XZ)) - -#define JOURNAL_HEADER_COMPRESSED_LZ4(h) \ - (!!(le32toh((h)->incompatible_flags) & HEADER_INCOMPATIBLE_COMPRESSED_LZ4)) - -int journal_file_move_to_object(JournalFile *f, ObjectType type, uint64_t offset, Object **ret); - -uint64_t journal_file_entry_n_items(Object *o) _pure_; -uint64_t journal_file_entry_array_n_items(Object *o) _pure_; -uint64_t journal_file_hash_table_n_items(Object *o) _pure_; - -int journal_file_append_object(JournalFile *f, ObjectType type, uint64_t size, Object **ret, uint64_t *offset); -int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const struct iovec iovec[], unsigned n_iovec, uint64_t *seqno, Object **ret, uint64_t *offset); - -int journal_file_find_data_object(JournalFile *f, const void *data, uint64_t size, Object **ret, uint64_t *offset); -int journal_file_find_data_object_with_hash(JournalFile *f, const void *data, uint64_t size, uint64_t hash, Object **ret, uint64_t *offset); - -int journal_file_find_field_object(JournalFile *f, const void *field, uint64_t size, Object **ret, uint64_t *offset); -int journal_file_find_field_object_with_hash(JournalFile *f, const void *field, uint64_t size, uint64_t hash, Object **ret, uint64_t *offset); - -void journal_file_reset_location(JournalFile *f); -void journal_file_save_location(JournalFile *f, Object *o, uint64_t offset); -int journal_file_compare_locations(JournalFile *af, JournalFile *bf); -int journal_file_next_entry(JournalFile *f, uint64_t p, direction_t direction, Object **ret, uint64_t *offset); - -int journal_file_next_entry_for_data(JournalFile *f, Object *o, uint64_t p, uint64_t data_offset, direction_t direction, Object **ret, uint64_t *offset); - -int journal_file_move_to_entry_by_seqnum(JournalFile *f, uint64_t seqnum, direction_t direction, Object **ret, uint64_t *offset); -int journal_file_move_to_entry_by_realtime(JournalFile *f, uint64_t realtime, direction_t direction, Object **ret, uint64_t *offset); -int journal_file_move_to_entry_by_monotonic(JournalFile *f, sd_id128_t boot_id, uint64_t monotonic, direction_t direction, Object **ret, uint64_t *offset); - -int journal_file_move_to_entry_by_offset_for_data(JournalFile *f, uint64_t data_offset, uint64_t p, direction_t direction, Object **ret, uint64_t *offset); -int journal_file_move_to_entry_by_seqnum_for_data(JournalFile *f, uint64_t data_offset, uint64_t seqnum, direction_t direction, Object **ret, uint64_t *offset); -int journal_file_move_to_entry_by_realtime_for_data(JournalFile *f, uint64_t data_offset, uint64_t realtime, direction_t direction, Object **ret, uint64_t *offset); -int journal_file_move_to_entry_by_monotonic_for_data(JournalFile *f, uint64_t data_offset, sd_id128_t boot_id, uint64_t monotonic, direction_t direction, Object **ret, uint64_t *offset); - -int journal_file_copy_entry(JournalFile *from, JournalFile *to, Object *o, uint64_t p, uint64_t *seqnum, Object **ret, uint64_t *offset); - -void journal_file_dump(JournalFile *f); -void journal_file_print_header(JournalFile *f); - -int journal_file_rotate(JournalFile **f, bool compress, bool seal); - -void journal_file_post_change(JournalFile *f); - -void journal_default_metrics(JournalMetrics *m, int fd); - -int journal_file_get_cutoff_realtime_usec(JournalFile *f, usec_t *from, usec_t *to); -int journal_file_get_cutoff_monotonic_usec(JournalFile *f, sd_id128_t boot, usec_t *from, usec_t *to); - -bool journal_file_rotate_suggested(JournalFile *f, usec_t max_file_usec); diff --git a/src/journal/journal-internal.h b/src/journal/journal-internal.h deleted file mode 100644 index b51ecdb600..0000000000 --- a/src/journal/journal-internal.h +++ /dev/null @@ -1,134 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <sys/types.h> -#include <inttypes.h> -#include <stdbool.h> - -#include "systemd/sd-id128.h" - -#include "journal-def.h" -#include "list.h" -#include "hashmap.h" -#include "set.h" -#include "journal-file.h" -#include "sd-journal.h" - -typedef struct Match Match; -typedef struct Location Location; -typedef struct Directory Directory; - -typedef enum MatchType { - MATCH_DISCRETE, - MATCH_OR_TERM, - MATCH_AND_TERM -} MatchType; - -struct Match { - MatchType type; - Match *parent; - LIST_FIELDS(Match, matches); - - /* For concrete matches */ - char *data; - size_t size; - le64_t le_hash; - - /* For terms */ - LIST_HEAD(Match, matches); -}; - -struct Location { - LocationType type; - - bool seqnum_set; - bool realtime_set; - bool monotonic_set; - bool xor_hash_set; - - uint64_t seqnum; - sd_id128_t seqnum_id; - - uint64_t realtime; - - uint64_t monotonic; - sd_id128_t boot_id; - - uint64_t xor_hash; -}; - -struct Directory { - char *path; - int wd; - bool is_root; -}; - -struct sd_journal { - char *path; - char *prefix; - - OrderedHashmap *files; - MMapCache *mmap; - - Location current_location; - - JournalFile *current_file; - uint64_t current_field; - - Match *level0, *level1, *level2; - - pid_t original_pid; - - int inotify_fd; - unsigned current_invalidate_counter, last_invalidate_counter; - usec_t last_process_usec; - - char *unique_field; - JournalFile *unique_file; - uint64_t unique_offset; - - int flags; - - bool on_network; - bool no_new_files; - bool unique_file_lost; /* File we were iterating over got - removed, and there were no more - files, so sd_j_enumerate_unique - will return a value equal to 0. */ - - size_t data_threshold; - - Hashmap *directories_by_path; - Hashmap *directories_by_wd; - - Set *errors; -}; - -char *journal_make_match_string(sd_journal *j); -void journal_print_header(sd_journal *j); - -DEFINE_TRIVIAL_CLEANUP_FUNC(sd_journal*, sd_journal_close); -#define _cleanup_journal_close_ _cleanup_(sd_journal_closep) - -#define JOURNAL_FOREACH_DATA_RETVAL(j, data, l, retval) \ - for (sd_journal_restart_data(j); ((retval) = sd_journal_enumerate_data((j), &(data), &(l))) > 0; ) diff --git a/src/journal/journal-qrcode.c b/src/journal/journal-qrcode.c deleted file mode 100644 index 1db66e89c6..0000000000 --- a/src/journal/journal-qrcode.c +++ /dev/null @@ -1,138 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <assert.h> -#include <stdio.h> -#include <errno.h> -#include <stdlib.h> -#include <stdbool.h> - -#include <qrencode.h> - -#include "journal-qrcode.h" - -#define WHITE_ON_BLACK "\033[40;37;1m" -#define NORMAL "\033[0m" - -static void print_border(FILE *output, unsigned width) { - unsigned x, y; - - /* Four rows of border */ - for (y = 0; y < 4; y += 2) { - fputs(WHITE_ON_BLACK, output); - - for (x = 0; x < 4 + width + 4; x++) - fputs("\342\226\210", output); - - fputs(NORMAL "\n", output); - } -} - -int print_qr_code( - FILE *output, - const void *seed, - size_t seed_size, - uint64_t start, - uint64_t interval, - const char *hn, - sd_id128_t machine) { - - FILE *f; - char *url = NULL; - size_t url_size = 0, i; - QRcode* qr; - unsigned x, y; - - assert(seed); - assert(seed_size > 0); - - f = open_memstream(&url, &url_size); - if (!f) - return -ENOMEM; - - fputs("fss://", f); - - for (i = 0; i < seed_size; i++) { - if (i > 0 && i % 3 == 0) - fputc('-', f); - fprintf(f, "%02x", ((uint8_t*) seed)[i]); - } - - fprintf(f, "/%"PRIx64"-%"PRIx64"?machine=" SD_ID128_FORMAT_STR, - start, - interval, - SD_ID128_FORMAT_VAL(machine)); - - if (hn) - fprintf(f, ";hostname=%s", hn); - - if (ferror(f)) { - fclose(f); - free(url); - return -ENOMEM; - } - - fclose(f); - - qr = QRcode_encodeString(url, 0, QR_ECLEVEL_L, QR_MODE_8, 1); - free(url); - - if (!qr) - return -ENOMEM; - - print_border(output, qr->width); - - for (y = 0; y < (unsigned) qr->width; y += 2) { - const uint8_t *row1, *row2; - - row1 = qr->data + qr->width * y; - row2 = row1 + qr->width; - - fputs(WHITE_ON_BLACK, output); - for (x = 0; x < 4; x++) - fputs("\342\226\210", output); - - for (x = 0; x < (unsigned) qr->width; x ++) { - bool a, b; - - a = row1[x] & 1; - b = (y+1) < (unsigned) qr->width ? (row2[x] & 1) : false; - - if (a && b) - fputc(' ', output); - else if (a) - fputs("\342\226\204", output); - else if (b) - fputs("\342\226\200", output); - else - fputs("\342\226\210", output); - } - - for (x = 0; x < 4; x++) - fputs("\342\226\210", output); - fputs(NORMAL "\n", output); - } - - print_border(output, qr->width); - - QRcode_free(qr); - return 0; -} diff --git a/src/journal/journal-qrcode.h b/src/journal/journal-qrcode.h deleted file mode 100644 index 3ff6a3ad4a..0000000000 --- a/src/journal/journal-qrcode.h +++ /dev/null @@ -1,28 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdio.h> - -#include "systemd/sd-id128.h" - -int print_qr_code(FILE *f, const void *seed, size_t seed_size, uint64_t start, uint64_t interval, const char *hn, sd_id128_t machine); diff --git a/src/journal/journal-send.c b/src/journal/journal-send.c deleted file mode 100644 index 1e3a463504..0000000000 --- a/src/journal/journal-send.c +++ /dev/null @@ -1,573 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <sys/socket.h> -#include <sys/un.h> -#include <errno.h> -#include <stddef.h> -#include <unistd.h> -#include <fcntl.h> -#include <printf.h> - -#define SD_JOURNAL_SUPPRESS_LOCATION - -#include "sd-journal.h" -#include "util.h" -#include "socket-util.h" -#include "memfd-util.h" - -#define SNDBUF_SIZE (8*1024*1024) - -#define ALLOCA_CODE_FUNC(f, func) \ - do { \ - size_t _fl; \ - const char *_func = (func); \ - char **_f = &(f); \ - _fl = strlen(_func) + 1; \ - *_f = alloca(_fl + 10); \ - memcpy(*_f, "CODE_FUNC=", 10); \ - memcpy(*_f + 10, _func, _fl); \ - } while(false) - -/* We open a single fd, and we'll share it with the current process, - * all its threads, and all its subprocesses. This means we need to - * initialize it atomically, and need to operate on it atomically - * never assuming we are the only user */ - -static int journal_fd(void) { - int fd; - static int fd_plus_one = 0; - -retry: - if (fd_plus_one > 0) - return fd_plus_one - 1; - - fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0); - if (fd < 0) - return -errno; - - fd_inc_sndbuf(fd, SNDBUF_SIZE); - - if (!__sync_bool_compare_and_swap(&fd_plus_one, 0, fd+1)) { - safe_close(fd); - goto retry; - } - - return fd; -} - -_public_ int sd_journal_print(int priority, const char *format, ...) { - int r; - va_list ap; - - va_start(ap, format); - r = sd_journal_printv(priority, format, ap); - va_end(ap); - - return r; -} - -_public_ int sd_journal_printv(int priority, const char *format, va_list ap) { - - /* FIXME: Instead of limiting things to LINE_MAX we could do a - C99 variable-length array on the stack here in a loop. */ - - char buffer[8 + LINE_MAX], p[sizeof("PRIORITY=")-1 + DECIMAL_STR_MAX(int) + 1]; - struct iovec iov[2]; - - assert_return(priority >= 0, -EINVAL); - assert_return(priority <= 7, -EINVAL); - assert_return(format, -EINVAL); - - xsprintf(p, "PRIORITY=%i", priority & LOG_PRIMASK); - - memcpy(buffer, "MESSAGE=", 8); - vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap); - - zero(iov); - IOVEC_SET_STRING(iov[0], buffer); - IOVEC_SET_STRING(iov[1], p); - - return sd_journal_sendv(iov, 2); -} - -_printf_(1, 0) static int fill_iovec_sprintf(const char *format, va_list ap, int extra, struct iovec **_iov) { - PROTECT_ERRNO; - int r, n = 0, i = 0, j; - struct iovec *iov = NULL; - - assert(_iov); - - if (extra > 0) { - n = MAX(extra * 2, extra + 4); - iov = malloc0(n * sizeof(struct iovec)); - if (!iov) { - r = -ENOMEM; - goto fail; - } - - i = extra; - } - - while (format) { - struct iovec *c; - char *buffer; - va_list aq; - - if (i >= n) { - n = MAX(i*2, 4); - c = realloc(iov, n * sizeof(struct iovec)); - if (!c) { - r = -ENOMEM; - goto fail; - } - - iov = c; - } - - va_copy(aq, ap); - if (vasprintf(&buffer, format, aq) < 0) { - va_end(aq); - r = -ENOMEM; - goto fail; - } - va_end(aq); - - VA_FORMAT_ADVANCE(format, ap); - - IOVEC_SET_STRING(iov[i++], buffer); - - format = va_arg(ap, char *); - } - - *_iov = iov; - - return i; - -fail: - for (j = 0; j < i; j++) - free(iov[j].iov_base); - - free(iov); - - return r; -} - -_public_ int sd_journal_send(const char *format, ...) { - int r, i, j; - va_list ap; - struct iovec *iov = NULL; - - va_start(ap, format); - i = fill_iovec_sprintf(format, ap, 0, &iov); - va_end(ap); - - if (_unlikely_(i < 0)) { - r = i; - goto finish; - } - - r = sd_journal_sendv(iov, i); - -finish: - for (j = 0; j < i; j++) - free(iov[j].iov_base); - - free(iov); - - return r; -} - -_public_ int sd_journal_sendv(const struct iovec *iov, int n) { - PROTECT_ERRNO; - int fd, r; - _cleanup_close_ int buffer_fd = -1; - struct iovec *w; - uint64_t *l; - int i, j = 0; - struct sockaddr_un sa = { - .sun_family = AF_UNIX, - .sun_path = "/run/systemd/journal/socket", - }; - struct msghdr mh = { - .msg_name = &sa, - .msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(sa.sun_path), - }; - ssize_t k; - union { - struct cmsghdr cmsghdr; - uint8_t buf[CMSG_SPACE(sizeof(int))]; - } control; - struct cmsghdr *cmsg; - bool have_syslog_identifier = false; - bool seal = true; - - assert_return(iov, -EINVAL); - assert_return(n > 0, -EINVAL); - - w = alloca(sizeof(struct iovec) * n * 5 + 3); - l = alloca(sizeof(uint64_t) * n); - - for (i = 0; i < n; i++) { - char *c, *nl; - - if (_unlikely_(!iov[i].iov_base || iov[i].iov_len <= 1)) - return -EINVAL; - - c = memchr(iov[i].iov_base, '=', iov[i].iov_len); - if (_unlikely_(!c || c == iov[i].iov_base)) - return -EINVAL; - - have_syslog_identifier = have_syslog_identifier || - (c == (char *) iov[i].iov_base + 17 && - startswith(iov[i].iov_base, "SYSLOG_IDENTIFIER")); - - nl = memchr(iov[i].iov_base, '\n', iov[i].iov_len); - if (nl) { - if (_unlikely_(nl < c)) - return -EINVAL; - - /* Already includes a newline? Bummer, then - * let's write the variable name, then a - * newline, then the size (64bit LE), followed - * by the data and a final newline */ - - w[j].iov_base = iov[i].iov_base; - w[j].iov_len = c - (char*) iov[i].iov_base; - j++; - - IOVEC_SET_STRING(w[j++], "\n"); - - l[i] = htole64(iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1); - w[j].iov_base = &l[i]; - w[j].iov_len = sizeof(uint64_t); - j++; - - w[j].iov_base = c + 1; - w[j].iov_len = iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1; - j++; - - } else - /* Nothing special? Then just add the line and - * append a newline */ - w[j++] = iov[i]; - - IOVEC_SET_STRING(w[j++], "\n"); - } - - if (!have_syslog_identifier && - string_is_safe(program_invocation_short_name)) { - - /* Implicitly add program_invocation_short_name, if it - * is not set explicitly. We only do this for - * program_invocation_short_name, and nothing else - * since everything else is much nicer to retrieve - * from the outside. */ - - IOVEC_SET_STRING(w[j++], "SYSLOG_IDENTIFIER="); - IOVEC_SET_STRING(w[j++], program_invocation_short_name); - IOVEC_SET_STRING(w[j++], "\n"); - } - - fd = journal_fd(); - if (_unlikely_(fd < 0)) - return fd; - - mh.msg_iov = w; - mh.msg_iovlen = j; - - k = sendmsg(fd, &mh, MSG_NOSIGNAL); - if (k >= 0) - return 0; - - /* Fail silently if the journal is not available */ - if (errno == ENOENT) - return 0; - - if (errno != EMSGSIZE && errno != ENOBUFS) - return -errno; - - /* Message doesn't fit... Let's dump the data in a memfd or - * temporary file and just pass a file descriptor of it to the - * other side. - * - * For the temporary files we use /dev/shm instead of /tmp - * here, since we want this to be a tmpfs, and one that is - * available from early boot on and where unprivileged users - * can create files. */ - buffer_fd = memfd_new(NULL); - if (buffer_fd < 0) { - if (buffer_fd == -ENOSYS) { - buffer_fd = open_tmpfile("/dev/shm", O_RDWR | O_CLOEXEC); - if (buffer_fd < 0) - return buffer_fd; - - seal = false; - } else - return buffer_fd; - } - - n = writev(buffer_fd, w, j); - if (n < 0) - return -errno; - - if (seal) { - r = memfd_set_sealed(buffer_fd); - if (r < 0) - return r; - } - - mh.msg_iov = NULL; - mh.msg_iovlen = 0; - - zero(control); - mh.msg_control = &control; - mh.msg_controllen = sizeof(control); - - cmsg = CMSG_FIRSTHDR(&mh); - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_RIGHTS; - cmsg->cmsg_len = CMSG_LEN(sizeof(int)); - memcpy(CMSG_DATA(cmsg), &buffer_fd, sizeof(int)); - - mh.msg_controllen = cmsg->cmsg_len; - - k = sendmsg(fd, &mh, MSG_NOSIGNAL); - if (k < 0) - return -errno; - - return 0; -} - -static int fill_iovec_perror_and_send(const char *message, int skip, struct iovec iov[]) { - PROTECT_ERRNO; - size_t n, k; - - k = isempty(message) ? 0 : strlen(message) + 2; - n = 8 + k + 256 + 1; - - for (;;) { - char buffer[n]; - char* j; - - errno = 0; - j = strerror_r(_saved_errno_, buffer + 8 + k, n - 8 - k); - if (errno == 0) { - char error[sizeof("ERRNO=")-1 + DECIMAL_STR_MAX(int) + 1]; - - if (j != buffer + 8 + k) - memmove(buffer + 8 + k, j, strlen(j)+1); - - memcpy(buffer, "MESSAGE=", 8); - - if (k > 0) { - memcpy(buffer + 8, message, k - 2); - memcpy(buffer + 8 + k - 2, ": ", 2); - } - - xsprintf(error, "ERRNO=%i", _saved_errno_); - - IOVEC_SET_STRING(iov[skip+0], "PRIORITY=3"); - IOVEC_SET_STRING(iov[skip+1], buffer); - IOVEC_SET_STRING(iov[skip+2], error); - - return sd_journal_sendv(iov, skip + 3); - } - - if (errno != ERANGE) - return -errno; - - n *= 2; - } -} - -_public_ int sd_journal_perror(const char *message) { - struct iovec iovec[3]; - - return fill_iovec_perror_and_send(message, 0, iovec); -} - -_public_ int sd_journal_stream_fd(const char *identifier, int priority, int level_prefix) { - union sockaddr_union sa = { - .un.sun_family = AF_UNIX, - .un.sun_path = "/run/systemd/journal/stdout", - }; - _cleanup_close_ int fd = -1; - char *header; - size_t l; - int r; - - assert_return(priority >= 0, -EINVAL); - assert_return(priority <= 7, -EINVAL); - - fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); - if (fd < 0) - return -errno; - - r = connect(fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)); - if (r < 0) - return -errno; - - if (shutdown(fd, SHUT_RD) < 0) - return -errno; - - fd_inc_sndbuf(fd, SNDBUF_SIZE); - - if (!identifier) - identifier = ""; - - l = strlen(identifier); - header = alloca(l + 1 + 1 + 2 + 2 + 2 + 2 + 2); - - memcpy(header, identifier, l); - header[l++] = '\n'; - header[l++] = '\n'; /* unit id */ - header[l++] = '0' + priority; - header[l++] = '\n'; - header[l++] = '0' + !!level_prefix; - header[l++] = '\n'; - header[l++] = '0'; - header[l++] = '\n'; - header[l++] = '0'; - header[l++] = '\n'; - header[l++] = '0'; - header[l++] = '\n'; - - r = loop_write(fd, header, l, false); - if (r < 0) - return r; - - r = fd; - fd = -1; - return r; -} - -_public_ int sd_journal_print_with_location(int priority, const char *file, const char *line, const char *func, const char *format, ...) { - int r; - va_list ap; - - va_start(ap, format); - r = sd_journal_printv_with_location(priority, file, line, func, format, ap); - va_end(ap); - - return r; -} - -_public_ int sd_journal_printv_with_location(int priority, const char *file, const char *line, const char *func, const char *format, va_list ap) { - char buffer[8 + LINE_MAX], p[sizeof("PRIORITY=")-1 + DECIMAL_STR_MAX(int) + 1]; - struct iovec iov[5]; - char *f; - - assert_return(priority >= 0, -EINVAL); - assert_return(priority <= 7, -EINVAL); - assert_return(format, -EINVAL); - - xsprintf(p, "PRIORITY=%i", priority & LOG_PRIMASK); - - memcpy(buffer, "MESSAGE=", 8); - vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap); - - /* func is initialized from __func__ which is not a macro, but - * a static const char[], hence cannot easily be prefixed with - * CODE_FUNC=, hence let's do it manually here. */ - ALLOCA_CODE_FUNC(f, func); - - zero(iov); - IOVEC_SET_STRING(iov[0], buffer); - IOVEC_SET_STRING(iov[1], p); - IOVEC_SET_STRING(iov[2], file); - IOVEC_SET_STRING(iov[3], line); - IOVEC_SET_STRING(iov[4], f); - - return sd_journal_sendv(iov, ELEMENTSOF(iov)); -} - -_public_ int sd_journal_send_with_location(const char *file, const char *line, const char *func, const char *format, ...) { - int r, i, j; - va_list ap; - struct iovec *iov = NULL; - char *f; - - va_start(ap, format); - i = fill_iovec_sprintf(format, ap, 3, &iov); - va_end(ap); - - if (_unlikely_(i < 0)) { - r = i; - goto finish; - } - - ALLOCA_CODE_FUNC(f, func); - - IOVEC_SET_STRING(iov[0], file); - IOVEC_SET_STRING(iov[1], line); - IOVEC_SET_STRING(iov[2], f); - - r = sd_journal_sendv(iov, i); - -finish: - for (j = 3; j < i; j++) - free(iov[j].iov_base); - - free(iov); - - return r; -} - -_public_ int sd_journal_sendv_with_location( - const char *file, const char *line, - const char *func, - const struct iovec *iov, int n) { - - struct iovec *niov; - char *f; - - assert_return(iov, -EINVAL); - assert_return(n > 0, -EINVAL); - - niov = alloca(sizeof(struct iovec) * (n + 3)); - memcpy(niov, iov, sizeof(struct iovec) * n); - - ALLOCA_CODE_FUNC(f, func); - - IOVEC_SET_STRING(niov[n++], file); - IOVEC_SET_STRING(niov[n++], line); - IOVEC_SET_STRING(niov[n++], f); - - return sd_journal_sendv(niov, n); -} - -_public_ int sd_journal_perror_with_location( - const char *file, const char *line, - const char *func, - const char *message) { - - struct iovec iov[6]; - char *f; - - ALLOCA_CODE_FUNC(f, func); - - IOVEC_SET_STRING(iov[0], file); - IOVEC_SET_STRING(iov[1], line); - IOVEC_SET_STRING(iov[2], f); - - return fill_iovec_perror_and_send(message, 3, iov); -} diff --git a/src/journal/journal-vacuum.c b/src/journal/journal-vacuum.c deleted file mode 100644 index 81a577ea27..0000000000 --- a/src/journal/journal-vacuum.c +++ /dev/null @@ -1,329 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <fcntl.h> -#include <sys/stat.h> -#include <unistd.h> - -#include "journal-def.h" -#include "journal-file.h" -#include "journal-vacuum.h" -#include "sd-id128.h" -#include "util.h" - -struct vacuum_info { - uint64_t usage; - char *filename; - - uint64_t realtime; - sd_id128_t seqnum_id; - uint64_t seqnum; - - bool have_seqnum; -}; - -static int vacuum_compare(const void *_a, const void *_b) { - const struct vacuum_info *a, *b; - - a = _a; - b = _b; - - if (a->have_seqnum && b->have_seqnum && - sd_id128_equal(a->seqnum_id, b->seqnum_id)) { - if (a->seqnum < b->seqnum) - return -1; - else if (a->seqnum > b->seqnum) - return 1; - else - return 0; - } - - if (a->realtime < b->realtime) - return -1; - else if (a->realtime > b->realtime) - return 1; - else if (a->have_seqnum && b->have_seqnum) - return memcmp(&a->seqnum_id, &b->seqnum_id, 16); - else - return strcmp(a->filename, b->filename); -} - -static void patch_realtime( - const char *dir, - const char *fn, - const struct stat *st, - unsigned long long *realtime) { - - _cleanup_free_ const char *path = NULL; - usec_t x, crtime = 0; - - /* The timestamp was determined by the file name, but let's - * see if the file might actually be older than the file name - * suggested... */ - - assert(dir); - assert(fn); - assert(st); - assert(realtime); - - x = timespec_load(&st->st_ctim); - if (x > 0 && x != USEC_INFINITY && x < *realtime) - *realtime = x; - - x = timespec_load(&st->st_atim); - if (x > 0 && x != USEC_INFINITY && x < *realtime) - *realtime = x; - - x = timespec_load(&st->st_mtim); - if (x > 0 && x != USEC_INFINITY && x < *realtime) - *realtime = x; - - /* Let's read the original creation time, if possible. Ideally - * we'd just query the creation time the FS might provide, but - * unfortunately there's currently no sane API to query - * it. Hence let's implement this manually... */ - - /* Unfortunately there is is not fgetxattrat(), so we need to - * go via path here. :-( */ - - path = strjoin(dir, "/", fn, NULL); - if (!path) - return; - - if (path_getcrtime(path, &crtime) >= 0) { - if (crtime < *realtime) - *realtime = crtime; - } -} - -static int journal_file_empty(int dir_fd, const char *name) { - _cleanup_close_ int fd; - struct stat st; - le64_t n_entries; - ssize_t n; - - fd = openat(dir_fd, name, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NONBLOCK); - if (fd < 0) - return -errno; - - if (fstat(fd, &st) < 0) - return -errno; - - /* If an offline file doesn't even have a header we consider it empty */ - if (st.st_size < (off_t) sizeof(Header)) - return 1; - - /* If the number of entries is empty, we consider it empty, too */ - n = pread(fd, &n_entries, sizeof(n_entries), offsetof(Header, n_entries)); - if (n < 0) - return -errno; - if (n != sizeof(n_entries)) - return -EIO; - - return le64toh(n_entries) <= 0; -} - -int journal_directory_vacuum( - const char *directory, - uint64_t max_use, - usec_t max_retention_usec, - usec_t *oldest_usec, - bool verbose) { - - _cleanup_closedir_ DIR *d = NULL; - int r = 0; - struct vacuum_info *list = NULL; - unsigned n_list = 0, i; - size_t n_allocated = 0; - uint64_t sum = 0, freed = 0; - usec_t retention_limit = 0; - char sbytes[FORMAT_BYTES_MAX]; - - assert(directory); - - if (max_use <= 0 && max_retention_usec <= 0) - return 0; - - if (max_retention_usec > 0) { - retention_limit = now(CLOCK_REALTIME); - if (retention_limit > max_retention_usec) - retention_limit -= max_retention_usec; - else - max_retention_usec = retention_limit = 0; - } - - d = opendir(directory); - if (!d) - return -errno; - - for (;;) { - struct dirent *de; - size_t q; - struct stat st; - char *p; - unsigned long long seqnum = 0, realtime; - sd_id128_t seqnum_id; - bool have_seqnum; - - errno = 0; - de = readdir(d); - if (!de && errno != 0) { - r = -errno; - goto finish; - } - - if (!de) - break; - - if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) - continue; - - if (!S_ISREG(st.st_mode)) - continue; - - q = strlen(de->d_name); - - if (endswith(de->d_name, ".journal")) { - - /* Vacuum archived files */ - - if (q < 1 + 32 + 1 + 16 + 1 + 16 + 8) - continue; - - if (de->d_name[q-8-16-1] != '-' || - de->d_name[q-8-16-1-16-1] != '-' || - de->d_name[q-8-16-1-16-1-32-1] != '@') - continue; - - p = strdup(de->d_name); - if (!p) { - r = -ENOMEM; - goto finish; - } - - de->d_name[q-8-16-1-16-1] = 0; - if (sd_id128_from_string(de->d_name + q-8-16-1-16-1-32, &seqnum_id) < 0) { - free(p); - continue; - } - - if (sscanf(de->d_name + q-8-16-1-16, "%16llx-%16llx.journal", &seqnum, &realtime) != 2) { - free(p); - continue; - } - - have_seqnum = true; - - } else if (endswith(de->d_name, ".journal~")) { - unsigned long long tmp; - - /* Vacuum corrupted files */ - - if (q < 1 + 16 + 1 + 16 + 8 + 1) - continue; - - if (de->d_name[q-1-8-16-1] != '-' || - de->d_name[q-1-8-16-1-16-1] != '@') - continue; - - p = strdup(de->d_name); - if (!p) { - r = -ENOMEM; - goto finish; - } - - if (sscanf(de->d_name + q-1-8-16-1-16, "%16llx-%16llx.journal~", &realtime, &tmp) != 2) { - free(p); - continue; - } - - have_seqnum = false; - } else - /* We do not vacuum active files or unknown files! */ - continue; - - if (journal_file_empty(dirfd(d), p)) { - /* Always vacuum empty non-online files. */ - - uint64_t size = 512UL * (uint64_t) st.st_blocks; - - if (unlinkat(dirfd(d), p, 0) >= 0) { - log_full(verbose ? LOG_INFO : LOG_DEBUG, "Deleted empty archived journal %s/%s (%s).", directory, p, format_bytes(sbytes, sizeof(sbytes), size)); - freed += size; - } else if (errno != ENOENT) - log_warning_errno(errno, "Failed to delete empty archived journal %s/%s: %m", directory, p); - - free(p); - continue; - } - - patch_realtime(directory, p, &st, &realtime); - - if (!GREEDY_REALLOC(list, n_allocated, n_list + 1)) { - free(p); - r = -ENOMEM; - goto finish; - } - - list[n_list].filename = p; - list[n_list].usage = 512UL * (uint64_t) st.st_blocks; - list[n_list].seqnum = seqnum; - list[n_list].realtime = realtime; - list[n_list].seqnum_id = seqnum_id; - list[n_list].have_seqnum = have_seqnum; - - sum += list[n_list].usage; - - n_list ++; - } - - qsort_safe(list, n_list, sizeof(struct vacuum_info), vacuum_compare); - - for (i = 0; i < n_list; i++) { - if ((max_retention_usec <= 0 || list[i].realtime >= retention_limit) && - (max_use <= 0 || sum <= max_use)) - break; - - if (unlinkat(dirfd(d), list[i].filename, 0) >= 0) { - log_full(verbose ? LOG_INFO : LOG_DEBUG, "Deleted archived journal %s/%s (%s).", directory, list[i].filename, format_bytes(sbytes, sizeof(sbytes), list[i].usage)); - freed += list[i].usage; - - if (list[i].usage < sum) - sum -= list[i].usage; - else - sum = 0; - - } else if (errno != ENOENT) - log_warning_errno(errno, "Failed to delete archived journal %s/%s: %m", directory, list[i].filename); - } - - if (oldest_usec && i < n_list && (*oldest_usec == 0 || list[i].realtime < *oldest_usec)) - *oldest_usec = list[i].realtime; - -finish: - for (i = 0; i < n_list; i++) - free(list[i].filename); - free(list); - - log_full(verbose ? LOG_INFO : LOG_DEBUG, "Vacuuming done, freed %s of archived journals on disk.", format_bytes(sbytes, sizeof(sbytes), freed)); - - return r; -} diff --git a/src/journal/journal-vacuum.h b/src/journal/journal-vacuum.h deleted file mode 100644 index c45cc31d0e..0000000000 --- a/src/journal/journal-vacuum.h +++ /dev/null @@ -1,25 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - - -int journal_directory_vacuum(const char *directory, uint64_t max_use, usec_t max_retention_usec, usec_t *oldest_usec, bool vacuum); diff --git a/src/journal/journal-verify.c b/src/journal/journal-verify.c deleted file mode 100644 index 146c10b4d4..0000000000 --- a/src/journal/journal-verify.c +++ /dev/null @@ -1,1289 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> -#include <sys/mman.h> -#include <fcntl.h> -#include <stddef.h> - -#include "util.h" -#include "macro.h" -#include "journal-def.h" -#include "journal-file.h" -#include "journal-authenticate.h" -#include "journal-verify.h" -#include "lookup3.h" -#include "compress.h" - -static void draw_progress(uint64_t p, usec_t *last_usec) { - unsigned n, i, j, k; - usec_t z, x; - - if (!on_tty()) - return; - - z = now(CLOCK_MONOTONIC); - x = *last_usec; - - if (x != 0 && x + 40 * USEC_PER_MSEC > z) - return; - - *last_usec = z; - - n = (3 * columns()) / 4; - j = (n * (unsigned) p) / 65535ULL; - k = n - j; - - fputs("\r\x1B[?25l" ANSI_HIGHLIGHT_GREEN_ON, stdout); - - for (i = 0; i < j; i++) - fputs("\xe2\x96\x88", stdout); - - fputs(ANSI_HIGHLIGHT_OFF, stdout); - - for (i = 0; i < k; i++) - fputs("\xe2\x96\x91", stdout); - - printf(" %3"PRIu64"%%", 100U * p / 65535U); - - fputs("\r\x1B[?25h", stdout); - fflush(stdout); -} - -static void flush_progress(void) { - unsigned n, i; - - if (!on_tty()) - return; - - n = (3 * columns()) / 4; - - putchar('\r'); - - for (i = 0; i < n + 5; i++) - putchar(' '); - - putchar('\r'); - fflush(stdout); -} - -#define debug(_offset, _fmt, ...) do{ \ - flush_progress(); \ - log_debug(OFSfmt": " _fmt, _offset, ##__VA_ARGS__); \ - } while(0) - -#define warning(_offset, _fmt, ...) do{ \ - flush_progress(); \ - log_warning(OFSfmt": " _fmt, _offset, ##__VA_ARGS__); \ - } while(0) - -#define error(_offset, _fmt, ...) do{ \ - flush_progress(); \ - log_error(OFSfmt": " _fmt, (uint64_t)_offset, ##__VA_ARGS__); \ - } while(0) - -static int journal_file_object_verify(JournalFile *f, uint64_t offset, Object *o) { - uint64_t i; - - assert(f); - assert(offset); - assert(o); - - /* This does various superficial tests about the length an - * possible field values. It does not follow any references to - * other objects. */ - - if ((o->object.flags & OBJECT_COMPRESSED_XZ) && - o->object.type != OBJECT_DATA) - return -EBADMSG; - - switch (o->object.type) { - - case OBJECT_DATA: { - uint64_t h1, h2; - int compression, r; - - if (le64toh(o->data.entry_offset) == 0) - warning(offset, "unused data (entry_offset==0)"); - - if ((le64toh(o->data.entry_offset) == 0) ^ (le64toh(o->data.n_entries) == 0)) { - error(offset, "bad n_entries: %"PRIu64, o->data.n_entries); - return -EBADMSG; - } - - if (le64toh(o->object.size) - offsetof(DataObject, payload) <= 0) { - error(offset, "bad object size (<= %zu): %"PRIu64, - offsetof(DataObject, payload), - le64toh(o->object.size)); - return -EBADMSG; - } - - h1 = le64toh(o->data.hash); - - compression = o->object.flags & OBJECT_COMPRESSION_MASK; - if (compression) { - _cleanup_free_ void *b = NULL; - size_t alloc = 0, b_size; - - r = decompress_blob(compression, - o->data.payload, - le64toh(o->object.size) - offsetof(Object, data.payload), - &b, &alloc, &b_size, 0); - if (r < 0) { - error(offset, "%s decompression failed: %s", - object_compressed_to_string(compression), strerror(-r)); - return r; - } - - h2 = hash64(b, b_size); - } else - h2 = hash64(o->data.payload, le64toh(o->object.size) - offsetof(Object, data.payload)); - - if (h1 != h2) { - error(offset, "invalid hash (%08"PRIx64" vs. %08"PRIx64, h1, h2); - return -EBADMSG; - } - - if (!VALID64(o->data.next_hash_offset) || - !VALID64(o->data.next_field_offset) || - !VALID64(o->data.entry_offset) || - !VALID64(o->data.entry_array_offset)) { - error(offset, "invalid offset (next_hash_offset="OFSfmt", next_field_offset="OFSfmt", entry_offset="OFSfmt", entry_array_offset="OFSfmt, - o->data.next_hash_offset, - o->data.next_field_offset, - o->data.entry_offset, - o->data.entry_array_offset); - return -EBADMSG; - } - - break; - } - - case OBJECT_FIELD: - if (le64toh(o->object.size) - offsetof(FieldObject, payload) <= 0) { - error(offset, - "bad field size (<= %zu): %"PRIu64, - offsetof(FieldObject, payload), - le64toh(o->object.size)); - return -EBADMSG; - } - - if (!VALID64(o->field.next_hash_offset) || - !VALID64(o->field.head_data_offset)) { - error(offset, - "invalid offset (next_hash_offset="OFSfmt", head_data_offset="OFSfmt, - o->field.next_hash_offset, - o->field.head_data_offset); - return -EBADMSG; - } - break; - - case OBJECT_ENTRY: - if ((le64toh(o->object.size) - offsetof(EntryObject, items)) % sizeof(EntryItem) != 0) { - error(offset, - "bad entry size (<= %zu): %"PRIu64, - offsetof(EntryObject, items), - le64toh(o->object.size)); - return -EBADMSG; - } - - if ((le64toh(o->object.size) - offsetof(EntryObject, items)) / sizeof(EntryItem) <= 0) { - error(offset, - "invalid number items in entry: %"PRIu64, - (le64toh(o->object.size) - offsetof(EntryObject, items)) / sizeof(EntryItem)); - return -EBADMSG; - } - - if (le64toh(o->entry.seqnum) <= 0) { - error(offset, - "invalid entry seqnum: %"PRIx64, - le64toh(o->entry.seqnum)); - return -EBADMSG; - } - - if (!VALID_REALTIME(le64toh(o->entry.realtime))) { - error(offset, - "invalid entry realtime timestamp: %"PRIu64, - le64toh(o->entry.realtime)); - return -EBADMSG; - } - - if (!VALID_MONOTONIC(le64toh(o->entry.monotonic))) { - error(offset, - "invalid entry monotonic timestamp: %"PRIu64, - le64toh(o->entry.monotonic)); - return -EBADMSG; - } - - for (i = 0; i < journal_file_entry_n_items(o); i++) { - if (o->entry.items[i].object_offset == 0 || - !VALID64(o->entry.items[i].object_offset)) { - error(offset, - "invalid entry item (%"PRIu64"/%"PRIu64" offset: "OFSfmt, - i, journal_file_entry_n_items(o), - o->entry.items[i].object_offset); - return -EBADMSG; - } - } - - break; - - case OBJECT_DATA_HASH_TABLE: - case OBJECT_FIELD_HASH_TABLE: - if ((le64toh(o->object.size) - offsetof(HashTableObject, items)) % sizeof(HashItem) != 0 || - (le64toh(o->object.size) - offsetof(HashTableObject, items)) / sizeof(HashItem) <= 0) { - error(offset, - "invalid %s hash table size: %"PRIu64, - o->object.type == OBJECT_DATA_HASH_TABLE ? "data" : "field", - le64toh(o->object.size)); - return -EBADMSG; - } - - for (i = 0; i < journal_file_hash_table_n_items(o); i++) { - if (o->hash_table.items[i].head_hash_offset != 0 && - !VALID64(le64toh(o->hash_table.items[i].head_hash_offset))) { - error(offset, - "invalid %s hash table item (%"PRIu64"/%"PRIu64") head_hash_offset: "OFSfmt, - o->object.type == OBJECT_DATA_HASH_TABLE ? "data" : "field", - i, journal_file_hash_table_n_items(o), - le64toh(o->hash_table.items[i].head_hash_offset)); - return -EBADMSG; - } - if (o->hash_table.items[i].tail_hash_offset != 0 && - !VALID64(le64toh(o->hash_table.items[i].tail_hash_offset))) { - error(offset, - "invalid %s hash table item (%"PRIu64"/%"PRIu64") tail_hash_offset: "OFSfmt, - o->object.type == OBJECT_DATA_HASH_TABLE ? "data" : "field", - i, journal_file_hash_table_n_items(o), - le64toh(o->hash_table.items[i].tail_hash_offset)); - return -EBADMSG; - } - - if ((o->hash_table.items[i].head_hash_offset != 0) != - (o->hash_table.items[i].tail_hash_offset != 0)) { - error(offset, - "invalid %s hash table item (%"PRIu64"/%"PRIu64"): head_hash_offset="OFSfmt" tail_hash_offset="OFSfmt, - o->object.type == OBJECT_DATA_HASH_TABLE ? "data" : "field", - i, journal_file_hash_table_n_items(o), - le64toh(o->hash_table.items[i].head_hash_offset), - le64toh(o->hash_table.items[i].tail_hash_offset)); - return -EBADMSG; - } - } - - break; - - case OBJECT_ENTRY_ARRAY: - if ((le64toh(o->object.size) - offsetof(EntryArrayObject, items)) % sizeof(le64_t) != 0 || - (le64toh(o->object.size) - offsetof(EntryArrayObject, items)) / sizeof(le64_t) <= 0) { - error(offset, - "invalid object entry array size: %"PRIu64, - le64toh(o->object.size)); - return -EBADMSG; - } - - if (!VALID64(o->entry_array.next_entry_array_offset)) { - error(offset, - "invalid object entry array next_entry_array_offset: "OFSfmt, - o->entry_array.next_entry_array_offset); - return -EBADMSG; - } - - for (i = 0; i < journal_file_entry_array_n_items(o); i++) - if (le64toh(o->entry_array.items[i]) != 0 && - !VALID64(le64toh(o->entry_array.items[i]))) { - error(offset, - "invalid object entry array item (%"PRIu64"/%"PRIu64"): "OFSfmt, - i, journal_file_entry_array_n_items(o), - le64toh(o->entry_array.items[i])); - return -EBADMSG; - } - - break; - - case OBJECT_TAG: - if (le64toh(o->object.size) != sizeof(TagObject)) { - error(offset, - "invalid object tag size: %"PRIu64, - le64toh(o->object.size)); - return -EBADMSG; - } - - if (!VALID_EPOCH(o->tag.epoch)) { - error(offset, - "invalid object tag epoch: %"PRIu64, - o->tag.epoch); - return -EBADMSG; - } - - break; - } - - return 0; -} - -static int write_uint64(int fd, uint64_t p) { - ssize_t k; - - k = write(fd, &p, sizeof(p)); - if (k < 0) - return -errno; - if (k != sizeof(p)) - return -EIO; - - return 0; -} - -static int contains_uint64(MMapCache *m, int fd, uint64_t n, uint64_t p) { - uint64_t a, b; - int r; - - assert(m); - assert(fd >= 0); - - /* Bisection ... */ - - a = 0; b = n; - while (a < b) { - uint64_t c, *z; - - c = (a + b) / 2; - - r = mmap_cache_get(m, fd, PROT_READ|PROT_WRITE, 0, false, c * sizeof(uint64_t), sizeof(uint64_t), NULL, (void **) &z); - if (r < 0) - return r; - - if (*z == p) - return 1; - - if (a + 1 >= b) - return 0; - - if (p < *z) - b = c; - else - a = c; - } - - return 0; -} - -static int entry_points_to_data( - JournalFile *f, - int entry_fd, - uint64_t n_entries, - uint64_t entry_p, - uint64_t data_p) { - - int r; - uint64_t i, n, a; - Object *o; - bool found = false; - - assert(f); - assert(entry_fd >= 0); - - if (!contains_uint64(f->mmap, entry_fd, n_entries, entry_p)) { - error(data_p, - "data object references invalid entry at "OFSfmt, entry_p); - return -EBADMSG; - } - - r = journal_file_move_to_object(f, OBJECT_ENTRY, entry_p, &o); - if (r < 0) - return r; - - n = journal_file_entry_n_items(o); - for (i = 0; i < n; i++) - if (le64toh(o->entry.items[i].object_offset) == data_p) { - found = true; - break; - } - - if (!found) { - error(entry_p, - "data object at "OFSfmt" not referenced by linked entry", data_p); - return -EBADMSG; - } - - /* Check if this entry is also in main entry array. Since the - * main entry array has already been verified we can rely on - * its consistency. */ - - i = 0; - n = le64toh(f->header->n_entries); - a = le64toh(f->header->entry_array_offset); - - while (i < n) { - uint64_t m, u; - - r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o); - if (r < 0) - return r; - - m = journal_file_entry_array_n_items(o); - u = MIN(n - i, m); - - if (entry_p <= le64toh(o->entry_array.items[u-1])) { - uint64_t x, y, z; - - x = 0; - y = u; - - while (x < y) { - z = (x + y) / 2; - - if (le64toh(o->entry_array.items[z]) == entry_p) - return 0; - - if (x + 1 >= y) - break; - - if (entry_p < le64toh(o->entry_array.items[z])) - y = z; - else - x = z; - } - - error(entry_p, "entry object doesn't exist in main entry array"); - return -EBADMSG; - } - - i += u; - a = le64toh(o->entry_array.next_entry_array_offset); - } - - return 0; -} - -static int verify_data( - JournalFile *f, - Object *o, uint64_t p, - int entry_fd, uint64_t n_entries, - int entry_array_fd, uint64_t n_entry_arrays) { - - uint64_t i, n, a, last, q; - int r; - - assert(f); - assert(o); - assert(entry_fd >= 0); - assert(entry_array_fd >= 0); - - n = le64toh(o->data.n_entries); - a = le64toh(o->data.entry_array_offset); - - /* Entry array means at least two objects */ - if (a && n < 2) { - error(p, - "entry array present (entry_array_offset="OFSfmt", but n_entries=%"PRIu64")", - a, n); - return -EBADMSG; - } - - if (n == 0) - return 0; - - /* We already checked that earlier */ - assert(o->data.entry_offset); - - last = q = le64toh(o->data.entry_offset); - r = entry_points_to_data(f, entry_fd, n_entries, q, p); - if (r < 0) - return r; - - i = 1; - while (i < n) { - uint64_t next, m, j; - - if (a == 0) { - error(p, "array chain too short"); - return -EBADMSG; - } - - if (!contains_uint64(f->mmap, entry_array_fd, n_entry_arrays, a)) { - error(p, "invalid array offset "OFSfmt, a); - return -EBADMSG; - } - - r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o); - if (r < 0) - return r; - - next = le64toh(o->entry_array.next_entry_array_offset); - if (next != 0 && next <= a) { - error(p, "array chain has cycle (jumps back from "OFSfmt" to "OFSfmt")", - a, next); - return -EBADMSG; - } - - m = journal_file_entry_array_n_items(o); - for (j = 0; i < n && j < m; i++, j++) { - - q = le64toh(o->entry_array.items[j]); - if (q <= last) { - error(p, "data object's entry array not sorted"); - return -EBADMSG; - } - last = q; - - r = entry_points_to_data(f, entry_fd, n_entries, q, p); - if (r < 0) - return r; - - /* Pointer might have moved, reposition */ - r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o); - if (r < 0) - return r; - } - - a = next; - } - - return 0; -} - -static int verify_hash_table( - JournalFile *f, - int data_fd, uint64_t n_data, - int entry_fd, uint64_t n_entries, - int entry_array_fd, uint64_t n_entry_arrays, - usec_t *last_usec, - bool show_progress) { - - uint64_t i, n; - int r; - - assert(f); - assert(data_fd >= 0); - assert(entry_fd >= 0); - assert(entry_array_fd >= 0); - assert(last_usec); - - n = le64toh(f->header->data_hash_table_size) / sizeof(HashItem); - for (i = 0; i < n; i++) { - uint64_t last = 0, p; - - if (show_progress) - draw_progress(0xC000 + (0x3FFF * i / n), last_usec); - - p = le64toh(f->data_hash_table[i].head_hash_offset); - while (p != 0) { - Object *o; - uint64_t next; - - if (!contains_uint64(f->mmap, data_fd, n_data, p)) { - error(p, "invalid data object at hash entry %"PRIu64" of %"PRIu64, - i, n); - return -EBADMSG; - } - - r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); - if (r < 0) - return r; - - next = le64toh(o->data.next_hash_offset); - if (next != 0 && next <= p) { - error(p, "hash chain has a cycle in hash entry %"PRIu64" of %"PRIu64, - i, n); - return -EBADMSG; - } - - if (le64toh(o->data.hash) % n != i) { - error(p, "hash value mismatch in hash entry %"PRIu64" of %"PRIu64, - i, n); - return -EBADMSG; - } - - r = verify_data(f, o, p, entry_fd, n_entries, entry_array_fd, n_entry_arrays); - if (r < 0) - return r; - - last = p; - p = next; - } - - if (last != le64toh(f->data_hash_table[i].tail_hash_offset)) { - error(p, "tail hash pointer mismatch in hash table"); - return -EBADMSG; - } - } - - return 0; -} - -static int data_object_in_hash_table(JournalFile *f, uint64_t hash, uint64_t p) { - uint64_t n, h, q; - int r; - assert(f); - - n = le64toh(f->header->data_hash_table_size) / sizeof(HashItem); - h = hash % n; - - q = le64toh(f->data_hash_table[h].head_hash_offset); - while (q != 0) { - Object *o; - - if (p == q) - return 1; - - r = journal_file_move_to_object(f, OBJECT_DATA, q, &o); - if (r < 0) - return r; - - q = le64toh(o->data.next_hash_offset); - } - - return 0; -} - -static int verify_entry( - JournalFile *f, - Object *o, uint64_t p, - int data_fd, uint64_t n_data) { - - uint64_t i, n; - int r; - - assert(f); - assert(o); - assert(data_fd >= 0); - - n = journal_file_entry_n_items(o); - for (i = 0; i < n; i++) { - uint64_t q, h; - Object *u; - - q = le64toh(o->entry.items[i].object_offset); - h = le64toh(o->entry.items[i].hash); - - if (!contains_uint64(f->mmap, data_fd, n_data, q)) { - error(p, "invalid data object of entry"); - return -EBADMSG; - } - - r = journal_file_move_to_object(f, OBJECT_DATA, q, &u); - if (r < 0) - return r; - - if (le64toh(u->data.hash) != h) { - error(p, "hash mismatch for data object of entry"); - return -EBADMSG; - } - - r = data_object_in_hash_table(f, h, q); - if (r < 0) - return r; - if (r == 0) { - error(p, "data object missing from hash table"); - return -EBADMSG; - } - } - - return 0; -} - -static int verify_entry_array( - JournalFile *f, - int data_fd, uint64_t n_data, - int entry_fd, uint64_t n_entries, - int entry_array_fd, uint64_t n_entry_arrays, - usec_t *last_usec, - bool show_progress) { - - uint64_t i = 0, a, n, last = 0; - int r; - - assert(f); - assert(data_fd >= 0); - assert(entry_fd >= 0); - assert(entry_array_fd >= 0); - assert(last_usec); - - n = le64toh(f->header->n_entries); - a = le64toh(f->header->entry_array_offset); - while (i < n) { - uint64_t next, m, j; - Object *o; - - if (show_progress) - draw_progress(0x8000 + (0x3FFF * i / n), last_usec); - - if (a == 0) { - error(a, "array chain too short at %"PRIu64" of %"PRIu64, i, n); - return -EBADMSG; - } - - if (!contains_uint64(f->mmap, entry_array_fd, n_entry_arrays, a)) { - error(a, "invalid array %"PRIu64" of %"PRIu64, i, n); - return -EBADMSG; - } - - r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o); - if (r < 0) - return r; - - next = le64toh(o->entry_array.next_entry_array_offset); - if (next != 0 && next <= a) { - error(a, - "array chain has cycle at %"PRIu64" of %"PRIu64" (jumps back from to "OFSfmt")", - i, n, next); - return -EBADMSG; - } - - m = journal_file_entry_array_n_items(o); - for (j = 0; i < n && j < m; i++, j++) { - uint64_t p; - - p = le64toh(o->entry_array.items[j]); - if (p <= last) { - error(a, "entry array not sorted at %"PRIu64" of %"PRIu64, - i, n); - return -EBADMSG; - } - last = p; - - if (!contains_uint64(f->mmap, entry_fd, n_entries, p)) { - error(a, "invalid array entry at %"PRIu64" of %"PRIu64, - i, n); - return -EBADMSG; - } - - r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o); - if (r < 0) - return r; - - r = verify_entry(f, o, p, data_fd, n_data); - if (r < 0) - return r; - - /* Pointer might have moved, reposition */ - r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o); - if (r < 0) - return r; - } - - a = next; - } - - return 0; -} - -int journal_file_verify( - JournalFile *f, - const char *key, - usec_t *first_contained, usec_t *last_validated, usec_t *last_contained, - bool show_progress) { - int r; - Object *o; - uint64_t p = 0, last_epoch = 0, last_tag_realtime = 0, last_sealed_realtime = 0; - - uint64_t entry_seqnum = 0, entry_monotonic = 0, entry_realtime = 0; - sd_id128_t entry_boot_id; - bool entry_seqnum_set = false, entry_monotonic_set = false, entry_realtime_set = false, found_main_entry_array = false; - uint64_t n_weird = 0, n_objects = 0, n_entries = 0, n_data = 0, n_fields = 0, n_data_hash_tables = 0, n_field_hash_tables = 0, n_entry_arrays = 0, n_tags = 0; - usec_t last_usec = 0; - int data_fd = -1, entry_fd = -1, entry_array_fd = -1; - unsigned i; - bool found_last = false; -#ifdef HAVE_GCRYPT - uint64_t last_tag = 0; -#endif - assert(f); - - if (key) { -#ifdef HAVE_GCRYPT - r = journal_file_parse_verification_key(f, key); - if (r < 0) { - log_error("Failed to parse seed."); - return r; - } -#else - return -EOPNOTSUPP; -#endif - } else if (f->seal) - return -ENOKEY; - - data_fd = open_tmpfile("/var/tmp", O_RDWR | O_CLOEXEC); - if (data_fd < 0) { - log_error_errno(errno, "Failed to create data file: %m"); - r = -errno; - goto fail; - } - - entry_fd = open_tmpfile("/var/tmp", O_RDWR | O_CLOEXEC); - if (entry_fd < 0) { - log_error_errno(errno, "Failed to create entry file: %m"); - r = -errno; - goto fail; - } - - entry_array_fd = open_tmpfile("/var/tmp", O_RDWR | O_CLOEXEC); - if (entry_array_fd < 0) { - log_error_errno(errno, "Failed to create entry array file: %m"); - r = -errno; - goto fail; - } - - if (le32toh(f->header->compatible_flags) & ~HEADER_COMPATIBLE_SUPPORTED) { - log_error("Cannot verify file with unknown extensions."); - r = -EOPNOTSUPP; - goto fail; - } - - for (i = 0; i < sizeof(f->header->reserved); i++) - if (f->header->reserved[i] != 0) { - error(offsetof(Header, reserved[i]), "reserved field is non-zero"); - r = -EBADMSG; - goto fail; - } - - /* First iteration: we go through all objects, verify the - * superficial structure, headers, hashes. */ - - p = le64toh(f->header->header_size); - while (p != 0) { - if (show_progress) - draw_progress(0x7FFF * p / le64toh(f->header->tail_object_offset), &last_usec); - - r = journal_file_move_to_object(f, OBJECT_UNUSED, p, &o); - if (r < 0) { - error(p, "invalid object"); - goto fail; - } - - if (p > le64toh(f->header->tail_object_offset)) { - error(offsetof(Header, tail_object_offset), "invalid tail object pointer"); - r = -EBADMSG; - goto fail; - } - - if (p == le64toh(f->header->tail_object_offset)) - found_last = true; - - n_objects ++; - - r = journal_file_object_verify(f, p, o); - if (r < 0) { - error(p, "invalid object contents: %s", strerror(-r)); - goto fail; - } - - if ((o->object.flags & OBJECT_COMPRESSED_XZ) && - (o->object.flags & OBJECT_COMPRESSED_LZ4)) { - error(p, "objected with double compression"); - r = -EINVAL; - goto fail; - } - - if ((o->object.flags & OBJECT_COMPRESSED_XZ) && !JOURNAL_HEADER_COMPRESSED_XZ(f->header)) { - error(p, "XZ compressed object in file without XZ compression"); - r = -EBADMSG; - goto fail; - } - - if ((o->object.flags & OBJECT_COMPRESSED_LZ4) && !JOURNAL_HEADER_COMPRESSED_LZ4(f->header)) { - error(p, "LZ4 compressed object in file without LZ4 compression"); - r = -EBADMSG; - goto fail; - } - - switch (o->object.type) { - - case OBJECT_DATA: - r = write_uint64(data_fd, p); - if (r < 0) - goto fail; - - n_data++; - break; - - case OBJECT_FIELD: - n_fields++; - break; - - case OBJECT_ENTRY: - if (JOURNAL_HEADER_SEALED(f->header) && n_tags <= 0) { - error(p, "first entry before first tag"); - r = -EBADMSG; - goto fail; - } - - r = write_uint64(entry_fd, p); - if (r < 0) - goto fail; - - if (le64toh(o->entry.realtime) < last_tag_realtime) { - error(p, "older entry after newer tag"); - r = -EBADMSG; - goto fail; - } - - if (!entry_seqnum_set && - le64toh(o->entry.seqnum) != le64toh(f->header->head_entry_seqnum)) { - error(p, "head entry sequence number incorrect"); - r = -EBADMSG; - goto fail; - } - - if (entry_seqnum_set && - entry_seqnum >= le64toh(o->entry.seqnum)) { - error(p, "entry sequence number out of synchronization"); - r = -EBADMSG; - goto fail; - } - - entry_seqnum = le64toh(o->entry.seqnum); - entry_seqnum_set = true; - - if (entry_monotonic_set && - sd_id128_equal(entry_boot_id, o->entry.boot_id) && - entry_monotonic > le64toh(o->entry.monotonic)) { - error(p, "entry timestamp out of synchronization"); - r = -EBADMSG; - goto fail; - } - - entry_monotonic = le64toh(o->entry.monotonic); - entry_boot_id = o->entry.boot_id; - entry_monotonic_set = true; - - if (!entry_realtime_set && - le64toh(o->entry.realtime) != le64toh(f->header->head_entry_realtime)) { - error(p, "head entry realtime timestamp incorrect"); - r = -EBADMSG; - goto fail; - } - - entry_realtime = le64toh(o->entry.realtime); - entry_realtime_set = true; - - n_entries ++; - break; - - case OBJECT_DATA_HASH_TABLE: - if (n_data_hash_tables > 1) { - error(p, "more than one data hash table"); - r = -EBADMSG; - goto fail; - } - - if (le64toh(f->header->data_hash_table_offset) != p + offsetof(HashTableObject, items) || - le64toh(f->header->data_hash_table_size) != le64toh(o->object.size) - offsetof(HashTableObject, items)) { - error(p, "header fields for data hash table invalid"); - r = -EBADMSG; - goto fail; - } - - n_data_hash_tables++; - break; - - case OBJECT_FIELD_HASH_TABLE: - if (n_field_hash_tables > 1) { - error(p, "more than one field hash table"); - r = -EBADMSG; - goto fail; - } - - if (le64toh(f->header->field_hash_table_offset) != p + offsetof(HashTableObject, items) || - le64toh(f->header->field_hash_table_size) != le64toh(o->object.size) - offsetof(HashTableObject, items)) { - error(p, "header fields for field hash table invalid"); - r = -EBADMSG; - goto fail; - } - - n_field_hash_tables++; - break; - - case OBJECT_ENTRY_ARRAY: - r = write_uint64(entry_array_fd, p); - if (r < 0) - goto fail; - - if (p == le64toh(f->header->entry_array_offset)) { - if (found_main_entry_array) { - error(p, "more than one main entry array"); - r = -EBADMSG; - goto fail; - } - - found_main_entry_array = true; - } - - n_entry_arrays++; - break; - - case OBJECT_TAG: - if (!JOURNAL_HEADER_SEALED(f->header)) { - error(p, "tag object in file without sealing"); - r = -EBADMSG; - goto fail; - } - - if (le64toh(o->tag.seqnum) != n_tags + 1) { - error(p, "tag sequence number out of synchronization"); - r = -EBADMSG; - goto fail; - } - - if (le64toh(o->tag.epoch) < last_epoch) { - error(p, "epoch sequence out of synchronization"); - r = -EBADMSG; - goto fail; - } - -#ifdef HAVE_GCRYPT - if (f->seal) { - uint64_t q, rt; - - debug(p, "checking tag %"PRIu64"...", le64toh(o->tag.seqnum)); - - rt = f->fss_start_usec + o->tag.epoch * f->fss_interval_usec; - if (entry_realtime_set && entry_realtime >= rt + f->fss_interval_usec) { - error(p, "tag/entry realtime timestamp out of synchronization"); - r = -EBADMSG; - goto fail; - } - - /* OK, now we know the epoch. So let's now set - * it, and calculate the HMAC for everything - * since the last tag. */ - r = journal_file_fsprg_seek(f, le64toh(o->tag.epoch)); - if (r < 0) - goto fail; - - r = journal_file_hmac_start(f); - if (r < 0) - goto fail; - - if (last_tag == 0) { - r = journal_file_hmac_put_header(f); - if (r < 0) - goto fail; - - q = le64toh(f->header->header_size); - } else - q = last_tag; - - while (q <= p) { - r = journal_file_move_to_object(f, OBJECT_UNUSED, q, &o); - if (r < 0) - goto fail; - - r = journal_file_hmac_put_object(f, OBJECT_UNUSED, o, q); - if (r < 0) - goto fail; - - q = q + ALIGN64(le64toh(o->object.size)); - } - - /* Position might have changed, let's reposition things */ - r = journal_file_move_to_object(f, OBJECT_UNUSED, p, &o); - if (r < 0) - goto fail; - - if (memcmp(o->tag.tag, gcry_md_read(f->hmac, 0), TAG_LENGTH) != 0) { - error(p, "tag failed verification"); - r = -EBADMSG; - goto fail; - } - - f->hmac_running = false; - last_tag_realtime = rt; - last_sealed_realtime = entry_realtime; - } - - last_tag = p + ALIGN64(le64toh(o->object.size)); -#endif - - last_epoch = le64toh(o->tag.epoch); - - n_tags ++; - break; - - default: - n_weird ++; - } - - if (p == le64toh(f->header->tail_object_offset)) - p = 0; - else - p = p + ALIGN64(le64toh(o->object.size)); - } - - if (!found_last) { - error(le64toh(f->header->tail_object_offset), "tail object pointer dead"); - r = -EBADMSG; - goto fail; - } - - if (n_objects != le64toh(f->header->n_objects)) { - error(offsetof(Header, n_objects), "object number mismatch"); - r = -EBADMSG; - goto fail; - } - - if (n_entries != le64toh(f->header->n_entries)) { - error(offsetof(Header, n_entries), "entry number mismatch"); - r = -EBADMSG; - goto fail; - } - - if (JOURNAL_HEADER_CONTAINS(f->header, n_data) && - n_data != le64toh(f->header->n_data)) { - error(offsetof(Header, n_data), "data number mismatch"); - r = -EBADMSG; - goto fail; - } - - if (JOURNAL_HEADER_CONTAINS(f->header, n_fields) && - n_fields != le64toh(f->header->n_fields)) { - error(offsetof(Header, n_fields), "field number mismatch"); - r = -EBADMSG; - goto fail; - } - - if (JOURNAL_HEADER_CONTAINS(f->header, n_tags) && - n_tags != le64toh(f->header->n_tags)) { - error(offsetof(Header, n_tags), "tag number mismatch"); - r = -EBADMSG; - goto fail; - } - - if (JOURNAL_HEADER_CONTAINS(f->header, n_entry_arrays) && - n_entry_arrays != le64toh(f->header->n_entry_arrays)) { - error(offsetof(Header, n_entry_arrays), "entry array number mismatch"); - r = -EBADMSG; - goto fail; - } - - if (n_data_hash_tables != 1) { - error(0, "missing data hash table"); - r = -EBADMSG; - goto fail; - } - - if (n_field_hash_tables != 1) { - error(0, "missing field hash table"); - r = -EBADMSG; - goto fail; - } - - if (!found_main_entry_array) { - error(0, "missing entry array"); - r = -EBADMSG; - goto fail; - } - - if (entry_seqnum_set && - entry_seqnum != le64toh(f->header->tail_entry_seqnum)) { - error(offsetof(Header, tail_entry_seqnum), "invalid tail seqnum"); - r = -EBADMSG; - goto fail; - } - - if (entry_monotonic_set && - (!sd_id128_equal(entry_boot_id, f->header->boot_id) || - entry_monotonic != le64toh(f->header->tail_entry_monotonic))) { - error(0, "invalid tail monotonic timestamp"); - r = -EBADMSG; - goto fail; - } - - if (entry_realtime_set && entry_realtime != le64toh(f->header->tail_entry_realtime)) { - error(0, "invalid tail realtime timestamp"); - r = -EBADMSG; - goto fail; - } - - /* Second iteration: we follow all objects referenced from the - * two entry points: the object hash table and the entry - * array. We also check that everything referenced (directly - * or indirectly) in the data hash table also exists in the - * entry array, and vice versa. Note that we do not care for - * unreferenced objects. We only care that everything that is - * referenced is consistent. */ - - r = verify_entry_array(f, - data_fd, n_data, - entry_fd, n_entries, - entry_array_fd, n_entry_arrays, - &last_usec, - show_progress); - if (r < 0) - goto fail; - - r = verify_hash_table(f, - data_fd, n_data, - entry_fd, n_entries, - entry_array_fd, n_entry_arrays, - &last_usec, - show_progress); - if (r < 0) - goto fail; - - if (show_progress) - flush_progress(); - - mmap_cache_close_fd(f->mmap, data_fd); - mmap_cache_close_fd(f->mmap, entry_fd); - mmap_cache_close_fd(f->mmap, entry_array_fd); - - safe_close(data_fd); - safe_close(entry_fd); - safe_close(entry_array_fd); - - if (first_contained) - *first_contained = le64toh(f->header->head_entry_realtime); - if (last_validated) - *last_validated = last_sealed_realtime; - if (last_contained) - *last_contained = le64toh(f->header->tail_entry_realtime); - - return 0; - -fail: - if (show_progress) - flush_progress(); - - log_error("File corruption detected at %s:"OFSfmt" (of %llu bytes, %"PRIu64"%%).", - f->path, - p, - (unsigned long long) f->last_stat.st_size, - 100 * p / f->last_stat.st_size); - - if (data_fd >= 0) { - mmap_cache_close_fd(f->mmap, data_fd); - safe_close(data_fd); - } - - if (entry_fd >= 0) { - mmap_cache_close_fd(f->mmap, entry_fd); - safe_close(entry_fd); - } - - if (entry_array_fd >= 0) { - mmap_cache_close_fd(f->mmap, entry_array_fd); - safe_close(entry_array_fd); - } - - return r; -} diff --git a/src/journal/journal-verify.h b/src/journal/journal-verify.h deleted file mode 100644 index e392ab61d7..0000000000 --- a/src/journal/journal-verify.h +++ /dev/null @@ -1,26 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "journal-file.h" - -int journal_file_verify(JournalFile *f, const char *key, usec_t *first_contained, usec_t *last_validated, usec_t *last_contained, bool show_progress); diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c deleted file mode 100644 index b4f88bcd0a..0000000000 --- a/src/journal/journalctl.c +++ /dev/null @@ -1,2106 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <locale.h> -#include <fcntl.h> -#include <fnmatch.h> -#include <errno.h> -#include <stddef.h> -#include <string.h> -#include <stdio.h> -#include <unistd.h> -#include <stdlib.h> -#include <getopt.h> -#include <signal.h> -#include <poll.h> -#include <sys/stat.h> -#include <sys/inotify.h> -#include <linux/fs.h> - -#include "sd-journal.h" -#include "sd-bus.h" - -#include "log.h" -#include "logs-show.h" -#include "util.h" -#include "acl-util.h" -#include "path-util.h" -#include "fileio.h" -#include "build.h" -#include "pager.h" -#include "strv.h" -#include "set.h" -#include "sigbus.h" -#include "journal-internal.h" -#include "journal-def.h" -#include "journal-verify.h" -#include "journal-qrcode.h" -#include "journal-vacuum.h" -#include "fsprg.h" -#include "unit-name.h" -#include "catalog.h" -#include "mkdir.h" -#include "bus-util.h" -#include "bus-error.h" - -#define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE) - -enum { - /* Special values for arg_lines */ - ARG_LINES_DEFAULT = -2, - ARG_LINES_ALL = -1, -}; - -static OutputMode arg_output = OUTPUT_SHORT; -static bool arg_utc = false; -static bool arg_pager_end = false; -static bool arg_follow = false; -static bool arg_full = true; -static bool arg_all = false; -static bool arg_no_pager = false; -static int arg_lines = ARG_LINES_DEFAULT; -static bool arg_no_tail = false; -static bool arg_quiet = false; -static bool arg_merge = false; -static bool arg_boot = false; -static sd_id128_t arg_boot_id = {}; -static int arg_boot_offset = 0; -static bool arg_dmesg = false; -static const char *arg_cursor = NULL; -static const char *arg_after_cursor = NULL; -static bool arg_show_cursor = false; -static const char *arg_directory = NULL; -static char **arg_file = NULL; -static int arg_priorities = 0xFF; -static const char *arg_verify_key = NULL; -#ifdef HAVE_GCRYPT -static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC; -static bool arg_force = false; -#endif -static usec_t arg_since, arg_until; -static bool arg_since_set = false, arg_until_set = false; -static char **arg_syslog_identifier = NULL; -static char **arg_system_units = NULL; -static char **arg_user_units = NULL; -static const char *arg_field = NULL; -static bool arg_catalog = false; -static bool arg_reverse = false; -static int arg_journal_type = 0; -static const char *arg_root = NULL; -static const char *arg_machine = NULL; -static off_t arg_vacuum_size = (off_t) -1; -static usec_t arg_vacuum_time = USEC_INFINITY; - -static enum { - ACTION_SHOW, - ACTION_NEW_ID128, - ACTION_PRINT_HEADER, - ACTION_SETUP_KEYS, - ACTION_VERIFY, - ACTION_DISK_USAGE, - ACTION_LIST_CATALOG, - ACTION_DUMP_CATALOG, - ACTION_UPDATE_CATALOG, - ACTION_LIST_BOOTS, - ACTION_FLUSH, - ACTION_VACUUM, -} arg_action = ACTION_SHOW; - -typedef struct boot_id_t { - sd_id128_t id; - uint64_t first; - uint64_t last; -} boot_id_t; - -static void pager_open_if_enabled(void) { - - if (arg_no_pager) - return; - - pager_open(arg_pager_end); -} - -static char *format_timestamp_maybe_utc(char *buf, size_t l, usec_t t) { - - if (arg_utc) - return format_timestamp_utc(buf, l, t); - - return format_timestamp(buf, l, t); -} - -static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) { - sd_id128_t id = SD_ID128_NULL; - int off = 0, r; - - if (strlen(x) >= 32) { - char *t; - - t = strndupa(x, 32); - r = sd_id128_from_string(t, &id); - if (r >= 0) - x += 32; - - if (*x != '-' && *x != '+' && *x != 0) - return -EINVAL; - - if (*x != 0) { - r = safe_atoi(x, &off); - if (r < 0) - return r; - } - } else { - r = safe_atoi(x, &off); - if (r < 0) - return r; - } - - if (boot_id) - *boot_id = id; - - if (offset) - *offset = off; - - return 0; -} - -static void help(void) { - - pager_open_if_enabled(); - - printf("%s [OPTIONS...] [MATCHES...]\n\n" - "Query the journal.\n\n" - "Flags:\n" - " --system Show the system journal\n" - " --user Show the user journal for the current user\n" - " -M --machine=CONTAINER Operate on local container\n" - " --since=DATE Show entries not older than the specified date\n" - " --until=DATE Show entries not newer than the specified date\n" - " -c --cursor=CURSOR Show entries starting at the specified cursor\n" - " --after-cursor=CURSOR Show entries after the specified cursor\n" - " --show-cursor Print the cursor after all the entries\n" - " -b --boot[=ID] Show current boot or the specified boot\n" - " --list-boots Show terse information about recorded boots\n" - " -k --dmesg Show kernel message log from the current boot\n" - " -u --unit=UNIT Show logs from the specified unit\n" - " --user-unit=UNIT Show logs from the specified user unit\n" - " -t --identifier=STRING Show entries with the specified syslog identifier\n" - " -p --priority=RANGE Show entries with the specified priority\n" - " -e --pager-end Immediately jump to the end in the pager\n" - " -f --follow Follow the journal\n" - " -n --lines[=INTEGER] Number of journal entries to show\n" - " --no-tail Show all lines, even in follow mode\n" - " -r --reverse Show the newest entries first\n" - " -o --output=STRING Change journal output mode (short, short-iso,\n" - " short-precise, short-monotonic, verbose,\n" - " export, json, json-pretty, json-sse, cat)\n" - " --utc Express time in Coordinated Universal Time (UTC)\n" - " -x --catalog Add message explanations where available\n" - " --no-full Ellipsize fields\n" - " -a --all Show all fields, including long and unprintable\n" - " -q --quiet Do not show privilege warning\n" - " --no-pager Do not pipe output into a pager\n" - " -m --merge Show entries from all available journals\n" - " -D --directory=PATH Show journal files from directory\n" - " --file=PATH Show journal file\n" - " --root=ROOT Operate on catalog files underneath the root ROOT\n" -#ifdef HAVE_GCRYPT - " --interval=TIME Time interval for changing the FSS sealing key\n" - " --verify-key=KEY Specify FSS verification key\n" - " --force Override of the FSS key pair with --setup-keys\n" -#endif - "\nCommands:\n" - " -h --help Show this help text\n" - " --version Show package version\n" - " -F --field=FIELD List all values that a specified field takes\n" - " --new-id128 Generate a new 128-bit ID\n" - " --disk-usage Show total disk usage of all journal files\n" - " --vacuum-size=BYTES Reduce disk usage below specified size\n" - " --vacuum-time=TIME Remove journal files older than specified date\n" - " --flush Flush all journal data from /run into /var\n" - " --header Show journal header information\n" - " --list-catalog Show all message IDs in the catalog\n" - " --dump-catalog Show entries in the message catalog\n" - " --update-catalog Update the message catalog database\n" -#ifdef HAVE_GCRYPT - " --setup-keys Generate a new FSS key pair\n" - " --verify Verify journal file consistency\n" -#endif - , program_invocation_short_name); -} - -static int parse_argv(int argc, char *argv[]) { - - enum { - ARG_VERSION = 0x100, - ARG_NO_PAGER, - ARG_NO_FULL, - ARG_NO_TAIL, - ARG_NEW_ID128, - ARG_LIST_BOOTS, - ARG_USER, - ARG_SYSTEM, - ARG_ROOT, - ARG_HEADER, - ARG_SETUP_KEYS, - ARG_FILE, - ARG_INTERVAL, - ARG_VERIFY, - ARG_VERIFY_KEY, - ARG_DISK_USAGE, - ARG_SINCE, - ARG_UNTIL, - ARG_AFTER_CURSOR, - ARG_SHOW_CURSOR, - ARG_USER_UNIT, - ARG_LIST_CATALOG, - ARG_DUMP_CATALOG, - ARG_UPDATE_CATALOG, - ARG_FORCE, - ARG_UTC, - ARG_FLUSH, - ARG_VACUUM_SIZE, - ARG_VACUUM_TIME, - }; - - static const struct option options[] = { - { "help", no_argument, NULL, 'h' }, - { "version" , no_argument, NULL, ARG_VERSION }, - { "no-pager", no_argument, NULL, ARG_NO_PAGER }, - { "pager-end", no_argument, NULL, 'e' }, - { "follow", no_argument, NULL, 'f' }, - { "force", no_argument, NULL, ARG_FORCE }, - { "output", required_argument, NULL, 'o' }, - { "all", no_argument, NULL, 'a' }, - { "full", no_argument, NULL, 'l' }, - { "no-full", no_argument, NULL, ARG_NO_FULL }, - { "lines", optional_argument, NULL, 'n' }, - { "no-tail", no_argument, NULL, ARG_NO_TAIL }, - { "new-id128", no_argument, NULL, ARG_NEW_ID128 }, - { "quiet", no_argument, NULL, 'q' }, - { "merge", no_argument, NULL, 'm' }, - { "boot", optional_argument, NULL, 'b' }, - { "list-boots", no_argument, NULL, ARG_LIST_BOOTS }, - { "this-boot", optional_argument, NULL, 'b' }, /* deprecated */ - { "dmesg", no_argument, NULL, 'k' }, - { "system", no_argument, NULL, ARG_SYSTEM }, - { "user", no_argument, NULL, ARG_USER }, - { "directory", required_argument, NULL, 'D' }, - { "file", required_argument, NULL, ARG_FILE }, - { "root", required_argument, NULL, ARG_ROOT }, - { "header", no_argument, NULL, ARG_HEADER }, - { "identifier", required_argument, NULL, 't' }, - { "priority", required_argument, NULL, 'p' }, - { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS }, - { "interval", required_argument, NULL, ARG_INTERVAL }, - { "verify", no_argument, NULL, ARG_VERIFY }, - { "verify-key", required_argument, NULL, ARG_VERIFY_KEY }, - { "disk-usage", no_argument, NULL, ARG_DISK_USAGE }, - { "cursor", required_argument, NULL, 'c' }, - { "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR }, - { "show-cursor", no_argument, NULL, ARG_SHOW_CURSOR }, - { "since", required_argument, NULL, ARG_SINCE }, - { "until", required_argument, NULL, ARG_UNTIL }, - { "unit", required_argument, NULL, 'u' }, - { "user-unit", required_argument, NULL, ARG_USER_UNIT }, - { "field", required_argument, NULL, 'F' }, - { "catalog", no_argument, NULL, 'x' }, - { "list-catalog", no_argument, NULL, ARG_LIST_CATALOG }, - { "dump-catalog", no_argument, NULL, ARG_DUMP_CATALOG }, - { "update-catalog", no_argument, NULL, ARG_UPDATE_CATALOG }, - { "reverse", no_argument, NULL, 'r' }, - { "machine", required_argument, NULL, 'M' }, - { "utc", no_argument, NULL, ARG_UTC }, - { "flush", no_argument, NULL, ARG_FLUSH }, - { "vacuum-size", required_argument, NULL, ARG_VACUUM_SIZE }, - { "vacuum-time", required_argument, NULL, ARG_VACUUM_TIME }, - {} - }; - - int c, r; - - assert(argc >= 0); - assert(argv); - - while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:c:t:u:F:xrM:", options, NULL)) >= 0) - - switch (c) { - - case 'h': - help(); - return 0; - - case ARG_VERSION: - puts(PACKAGE_STRING); - puts(SYSTEMD_FEATURES); - return 0; - - case ARG_NO_PAGER: - arg_no_pager = true; - break; - - case 'e': - arg_pager_end = true; - - if (arg_lines == ARG_LINES_DEFAULT) - arg_lines = 1000; - - break; - - case 'f': - arg_follow = true; - break; - - case 'o': - arg_output = output_mode_from_string(optarg); - if (arg_output < 0) { - log_error("Unknown output format '%s'.", optarg); - return -EINVAL; - } - - if (arg_output == OUTPUT_EXPORT || - arg_output == OUTPUT_JSON || - arg_output == OUTPUT_JSON_PRETTY || - arg_output == OUTPUT_JSON_SSE || - arg_output == OUTPUT_CAT) - arg_quiet = true; - - break; - - case 'l': - arg_full = true; - break; - - case ARG_NO_FULL: - arg_full = false; - break; - - case 'a': - arg_all = true; - break; - - case 'n': - if (optarg) { - if (streq(optarg, "all")) - arg_lines = ARG_LINES_ALL; - else { - r = safe_atoi(optarg, &arg_lines); - if (r < 0 || arg_lines < 0) { - log_error("Failed to parse lines '%s'", optarg); - return -EINVAL; - } - } - } else { - arg_lines = 10; - - /* Hmm, no argument? Maybe the next - * word on the command line is - * supposed to be the argument? Let's - * see if there is one, and is - * parsable. */ - if (optind < argc) { - int n; - if (streq(argv[optind], "all")) { - arg_lines = ARG_LINES_ALL; - optind++; - } else if (safe_atoi(argv[optind], &n) >= 0 && n >= 0) { - arg_lines = n; - optind++; - } - } - } - - break; - - case ARG_NO_TAIL: - arg_no_tail = true; - break; - - case ARG_NEW_ID128: - arg_action = ACTION_NEW_ID128; - break; - - case 'q': - arg_quiet = true; - break; - - case 'm': - arg_merge = true; - break; - - case 'b': - arg_boot = true; - - if (optarg) { - r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset); - if (r < 0) { - log_error("Failed to parse boot descriptor '%s'", optarg); - return -EINVAL; - } - } else { - - /* Hmm, no argument? Maybe the next - * word on the command line is - * supposed to be the argument? Let's - * see if there is one and is parsable - * as a boot descriptor... */ - - if (optind < argc && - parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset) >= 0) - optind++; - } - - break; - - case ARG_LIST_BOOTS: - arg_action = ACTION_LIST_BOOTS; - break; - - case 'k': - arg_boot = arg_dmesg = true; - break; - - case ARG_SYSTEM: - arg_journal_type |= SD_JOURNAL_SYSTEM; - break; - - case ARG_USER: - arg_journal_type |= SD_JOURNAL_CURRENT_USER; - break; - - case 'M': - arg_machine = optarg; - break; - - case 'D': - arg_directory = optarg; - break; - - case ARG_FILE: - r = glob_extend(&arg_file, optarg); - if (r < 0) - return log_error_errno(r, "Failed to add paths: %m"); - break; - - case ARG_ROOT: - arg_root = optarg; - break; - - case 'c': - arg_cursor = optarg; - break; - - case ARG_AFTER_CURSOR: - arg_after_cursor = optarg; - break; - - case ARG_SHOW_CURSOR: - arg_show_cursor = true; - break; - - case ARG_HEADER: - arg_action = ACTION_PRINT_HEADER; - break; - - case ARG_VERIFY: - arg_action = ACTION_VERIFY; - break; - - case ARG_DISK_USAGE: - arg_action = ACTION_DISK_USAGE; - break; - - case ARG_VACUUM_SIZE: - r = parse_size(optarg, 1024, &arg_vacuum_size); - if (r < 0) { - log_error("Failed to parse vacuum size: %s", optarg); - return r; - } - - arg_action = ACTION_VACUUM; - break; - - case ARG_VACUUM_TIME: - r = parse_sec(optarg, &arg_vacuum_time); - if (r < 0) { - log_error("Failed to parse vacuum time: %s", optarg); - return r; - } - - arg_action = ACTION_VACUUM; - break; - -#ifdef HAVE_GCRYPT - case ARG_FORCE: - arg_force = true; - break; - - case ARG_SETUP_KEYS: - arg_action = ACTION_SETUP_KEYS; - break; - - - case ARG_VERIFY_KEY: - arg_action = ACTION_VERIFY; - arg_verify_key = optarg; - arg_merge = false; - break; - - case ARG_INTERVAL: - r = parse_sec(optarg, &arg_interval); - if (r < 0 || arg_interval <= 0) { - log_error("Failed to parse sealing key change interval: %s", optarg); - return -EINVAL; - } - break; -#else - case ARG_SETUP_KEYS: - case ARG_VERIFY_KEY: - case ARG_INTERVAL: - case ARG_FORCE: - log_error("Forward-secure sealing not available."); - return -EOPNOTSUPP; -#endif - - case 'p': { - const char *dots; - - dots = strstr(optarg, ".."); - if (dots) { - char *a; - int from, to, i; - - /* a range */ - a = strndup(optarg, dots - optarg); - if (!a) - return log_oom(); - - from = log_level_from_string(a); - to = log_level_from_string(dots + 2); - free(a); - - if (from < 0 || to < 0) { - log_error("Failed to parse log level range %s", optarg); - return -EINVAL; - } - - arg_priorities = 0; - - if (from < to) { - for (i = from; i <= to; i++) - arg_priorities |= 1 << i; - } else { - for (i = to; i <= from; i++) - arg_priorities |= 1 << i; - } - - } else { - int p, i; - - p = log_level_from_string(optarg); - if (p < 0) { - log_error("Unknown log level %s", optarg); - return -EINVAL; - } - - arg_priorities = 0; - - for (i = 0; i <= p; i++) - arg_priorities |= 1 << i; - } - - break; - } - - case ARG_SINCE: - r = parse_timestamp(optarg, &arg_since); - if (r < 0) { - log_error("Failed to parse timestamp: %s", optarg); - return -EINVAL; - } - arg_since_set = true; - break; - - case ARG_UNTIL: - r = parse_timestamp(optarg, &arg_until); - if (r < 0) { - log_error("Failed to parse timestamp: %s", optarg); - return -EINVAL; - } - arg_until_set = true; - break; - - case 't': - r = strv_extend(&arg_syslog_identifier, optarg); - if (r < 0) - return log_oom(); - break; - - case 'u': - r = strv_extend(&arg_system_units, optarg); - if (r < 0) - return log_oom(); - break; - - case ARG_USER_UNIT: - r = strv_extend(&arg_user_units, optarg); - if (r < 0) - return log_oom(); - break; - - case 'F': - arg_field = optarg; - break; - - case 'x': - arg_catalog = true; - break; - - case ARG_LIST_CATALOG: - arg_action = ACTION_LIST_CATALOG; - break; - - case ARG_DUMP_CATALOG: - arg_action = ACTION_DUMP_CATALOG; - break; - - case ARG_UPDATE_CATALOG: - arg_action = ACTION_UPDATE_CATALOG; - break; - - case 'r': - arg_reverse = true; - break; - - case ARG_UTC: - arg_utc = true; - break; - - case ARG_FLUSH: - arg_action = ACTION_FLUSH; - break; - - case '?': - return -EINVAL; - - default: - assert_not_reached("Unhandled option"); - } - - if (arg_follow && !arg_no_tail && !arg_since && arg_lines == ARG_LINES_DEFAULT) - arg_lines = 10; - - if (!!arg_directory + !!arg_file + !!arg_machine > 1) { - log_error("Please specify either -D/--directory= or --file= or -M/--machine=, not more than one."); - return -EINVAL; - } - - if (arg_since_set && arg_until_set && arg_since > arg_until) { - log_error("--since= must be before --until=."); - return -EINVAL; - } - - if (!!arg_cursor + !!arg_after_cursor + !!arg_since_set > 1) { - log_error("Please specify only one of --since=, --cursor=, and --after-cursor."); - return -EINVAL; - } - - if (arg_follow && arg_reverse) { - log_error("Please specify either --reverse= or --follow=, not both."); - return -EINVAL; - } - - if (arg_action != ACTION_SHOW && optind < argc) { - log_error("Extraneous arguments starting with '%s'", argv[optind]); - return -EINVAL; - } - - return 1; -} - -static int generate_new_id128(void) { - sd_id128_t id; - int r; - unsigned i; - - r = sd_id128_randomize(&id); - if (r < 0) - return log_error_errno(r, "Failed to generate ID: %m"); - - printf("As string:\n" - SD_ID128_FORMAT_STR "\n\n" - "As UUID:\n" - "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n\n" - "As macro:\n" - "#define MESSAGE_XYZ SD_ID128_MAKE(", - SD_ID128_FORMAT_VAL(id), - SD_ID128_FORMAT_VAL(id)); - for (i = 0; i < 16; i++) - printf("%02x%s", id.bytes[i], i != 15 ? "," : ""); - fputs(")\n\n", stdout); - - printf("As Python constant:\n" - ">>> import uuid\n" - ">>> MESSAGE_XYZ = uuid.UUID('" SD_ID128_FORMAT_STR "')\n", - SD_ID128_FORMAT_VAL(id)); - - return 0; -} - -static int add_matches(sd_journal *j, char **args) { - char **i; - bool have_term = false; - - assert(j); - - STRV_FOREACH(i, args) { - int r; - - if (streq(*i, "+")) { - if (!have_term) - break; - r = sd_journal_add_disjunction(j); - have_term = false; - - } else if (path_is_absolute(*i)) { - _cleanup_free_ char *p, *t = NULL, *t2 = NULL; - const char *path; - _cleanup_free_ char *interpreter = NULL; - struct stat st; - - p = canonicalize_file_name(*i); - path = p ? p : *i; - - if (stat(path, &st) < 0) - return log_error_errno(errno, "Couldn't stat file: %m"); - - if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) { - if (executable_is_script(path, &interpreter) > 0) { - _cleanup_free_ char *comm; - - comm = strndup(basename(path), 15); - if (!comm) - return log_oom(); - - t = strappend("_COMM=", comm); - - /* Append _EXE only if the interpreter is not a link. - Otherwise, it might be outdated often. */ - if (lstat(interpreter, &st) == 0 && - !S_ISLNK(st.st_mode)) { - t2 = strappend("_EXE=", interpreter); - if (!t2) - return log_oom(); - } - } else - t = strappend("_EXE=", path); - } else if (S_ISCHR(st.st_mode)) { - if (asprintf(&t, "_KERNEL_DEVICE=c%u:%u", - major(st.st_rdev), - minor(st.st_rdev)) < 0) - return -ENOMEM; - } else if (S_ISBLK(st.st_mode)) { - if (asprintf(&t, "_KERNEL_DEVICE=b%u:%u", - major(st.st_rdev), - minor(st.st_rdev)) < 0) - return -ENOMEM; - } else { - log_error("File is neither a device node, nor regular file, nor executable: %s", *i); - return -EINVAL; - } - - if (!t) - return log_oom(); - - r = sd_journal_add_match(j, t, 0); - if (t2) - r = sd_journal_add_match(j, t2, 0); - have_term = true; - - } else { - r = sd_journal_add_match(j, *i, 0); - have_term = true; - } - - if (r < 0) - return log_error_errno(r, "Failed to add match '%s': %m", *i); - } - - if (!strv_isempty(args) && !have_term) { - log_error("\"+\" can only be used between terms"); - return -EINVAL; - } - - return 0; -} - -static int boot_id_cmp(const void *a, const void *b) { - uint64_t _a, _b; - - _a = ((const boot_id_t *)a)->first; - _b = ((const boot_id_t *)b)->first; - - return _a < _b ? -1 : (_a > _b ? 1 : 0); -} - -static int get_boots(sd_journal *j, - boot_id_t **boots, - unsigned int *count, - boot_id_t *query_ref_boot) { - int r; - const void *data; - size_t length, allocated = 0; - - assert(j); - assert(boots); - assert(count); - - r = sd_journal_query_unique(j, "_BOOT_ID"); - if (r < 0) - return r; - - *count = 0; - SD_JOURNAL_FOREACH_UNIQUE(j, data, length) { - boot_id_t *id; - - assert(startswith(data, "_BOOT_ID=")); - - if (!GREEDY_REALLOC(*boots, allocated, *count + 1)) - return log_oom(); - - id = *boots + *count; - - r = sd_id128_from_string(((const char *)data) + strlen("_BOOT_ID="), &id->id); - if (r < 0) - continue; - - r = sd_journal_add_match(j, data, length); - if (r < 0) - return r; - - r = sd_journal_seek_head(j); - if (r < 0) - return r; - - r = sd_journal_next(j); - if (r < 0) - return r; - else if (r == 0) - goto flush; - - r = sd_journal_get_realtime_usec(j, &id->first); - if (r < 0) - return r; - - if (query_ref_boot) { - id->last = 0; - if (sd_id128_equal(id->id, query_ref_boot->id)) - *query_ref_boot = *id; - } else { - r = sd_journal_seek_tail(j); - if (r < 0) - return r; - - r = sd_journal_previous(j); - if (r < 0) - return r; - else if (r == 0) - goto flush; - - r = sd_journal_get_realtime_usec(j, &id->last); - if (r < 0) - return r; - } - - (*count)++; - flush: - sd_journal_flush_matches(j); - } - - qsort_safe(*boots, *count, sizeof(boot_id_t), boot_id_cmp); - return 0; -} - -static int list_boots(sd_journal *j) { - int r, w, i; - unsigned int count; - boot_id_t *id; - _cleanup_free_ boot_id_t *all_ids = NULL; - - assert(j); - - r = get_boots(j, &all_ids, &count, NULL); - if (r < 0) - return r; - - pager_open_if_enabled(); - - /* numbers are one less, but we need an extra char for the sign */ - w = DECIMAL_STR_WIDTH(count - 1) + 1; - - for (id = all_ids, i = 0; id < all_ids + count; id++, i++) { - char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; - - printf("% *i " SD_ID128_FORMAT_STR " %s—%s\n", - w, i - count + 1, - SD_ID128_FORMAT_VAL(id->id), - format_timestamp_maybe_utc(a, sizeof(a), id->first), - format_timestamp_maybe_utc(b, sizeof(b), id->last)); - } - - return 0; -} - -static int get_boot_id_by_offset(sd_journal *j, sd_id128_t *boot_id, int offset) { - int r; - unsigned int count; - boot_id_t ref_boot_id = {}, *id; - _cleanup_free_ boot_id_t *all_ids = NULL; - - assert(j); - assert(boot_id); - - ref_boot_id.id = *boot_id; - r = get_boots(j, &all_ids, &count, &ref_boot_id); - if (r < 0) - return r; - - if (sd_id128_equal(*boot_id, SD_ID128_NULL)) { - if (offset > (int) count || offset <= -(int)count) - return -EADDRNOTAVAIL; - - *boot_id = all_ids[(offset <= 0)*count + offset - 1].id; - } else { - id = bsearch(&ref_boot_id, all_ids, count, sizeof(boot_id_t), boot_id_cmp); - - if (!id || - offset <= 0 ? (id - all_ids) + offset < 0 : - (id - all_ids) + offset >= (int) count) - return -EADDRNOTAVAIL; - - *boot_id = (id + offset)->id; - } - - return 0; -} - -static int add_boot(sd_journal *j) { - char match[9+32+1] = "_BOOT_ID="; - int r; - - assert(j); - - if (!arg_boot) - return 0; - - if (arg_boot_offset == 0 && sd_id128_equal(arg_boot_id, SD_ID128_NULL)) - return add_match_this_boot(j, arg_machine); - - r = get_boot_id_by_offset(j, &arg_boot_id, arg_boot_offset); - if (r < 0) { - if (sd_id128_equal(arg_boot_id, SD_ID128_NULL)) - log_error_errno(r, "Failed to look up boot %+i: %m", arg_boot_offset); - else - log_error("Failed to look up boot ID "SD_ID128_FORMAT_STR"%+i: %s", - SD_ID128_FORMAT_VAL(arg_boot_id), arg_boot_offset, strerror(-r)); - return r; - } - - sd_id128_to_string(arg_boot_id, match + 9); - - r = sd_journal_add_match(j, match, sizeof(match) - 1); - if (r < 0) - return log_error_errno(r, "Failed to add match: %m"); - - r = sd_journal_add_conjunction(j); - if (r < 0) - return r; - - return 0; -} - -static int add_dmesg(sd_journal *j) { - int r; - assert(j); - - if (!arg_dmesg) - return 0; - - r = sd_journal_add_match(j, "_TRANSPORT=kernel", strlen("_TRANSPORT=kernel")); - if (r < 0) - return log_error_errno(r, "Failed to add match: %m"); - - r = sd_journal_add_conjunction(j); - if (r < 0) - return r; - - return 0; -} - -static int get_possible_units(sd_journal *j, - const char *fields, - char **patterns, - Set **units) { - _cleanup_set_free_free_ Set *found; - const char *field; - int r; - - found = set_new(&string_hash_ops); - if (!found) - return log_oom(); - - NULSTR_FOREACH(field, fields) { - const void *data; - size_t size; - - r = sd_journal_query_unique(j, field); - if (r < 0) - return r; - - SD_JOURNAL_FOREACH_UNIQUE(j, data, size) { - char **pattern, *eq; - size_t prefix; - _cleanup_free_ char *u = NULL; - - eq = memchr(data, '=', size); - if (eq) - prefix = eq - (char*) data + 1; - else - prefix = 0; - - u = strndup((char*) data + prefix, size - prefix); - if (!u) - return log_oom(); - - STRV_FOREACH(pattern, patterns) - if (fnmatch(*pattern, u, FNM_NOESCAPE) == 0) { - log_debug("Matched %s with pattern %s=%s", u, field, *pattern); - - r = set_consume(found, u); - u = NULL; - if (r < 0 && r != -EEXIST) - return r; - - break; - } - } - } - - *units = found; - found = NULL; - return 0; -} - -/* This list is supposed to return the superset of unit names - * possibly matched by rules added with add_matches_for_unit... */ -#define SYSTEM_UNITS \ - "_SYSTEMD_UNIT\0" \ - "COREDUMP_UNIT\0" \ - "UNIT\0" \ - "OBJECT_SYSTEMD_UNIT\0" \ - "_SYSTEMD_SLICE\0" - -/* ... and add_matches_for_user_unit */ -#define USER_UNITS \ - "_SYSTEMD_USER_UNIT\0" \ - "USER_UNIT\0" \ - "COREDUMP_USER_UNIT\0" \ - "OBJECT_SYSTEMD_USER_UNIT\0" - -static int add_units(sd_journal *j) { - _cleanup_strv_free_ char **patterns = NULL; - int r, count = 0; - char **i; - - assert(j); - - STRV_FOREACH(i, arg_system_units) { - _cleanup_free_ char *u = NULL; - - u = unit_name_mangle(*i, MANGLE_GLOB); - if (!u) - return log_oom(); - - if (string_is_glob(u)) { - r = strv_push(&patterns, u); - if (r < 0) - return r; - u = NULL; - } else { - r = add_matches_for_unit(j, u); - if (r < 0) - return r; - r = sd_journal_add_disjunction(j); - if (r < 0) - return r; - count ++; - } - } - - if (!strv_isempty(patterns)) { - _cleanup_set_free_free_ Set *units = NULL; - Iterator it; - char *u; - - r = get_possible_units(j, SYSTEM_UNITS, patterns, &units); - if (r < 0) - return r; - - SET_FOREACH(u, units, it) { - r = add_matches_for_unit(j, u); - if (r < 0) - return r; - r = sd_journal_add_disjunction(j); - if (r < 0) - return r; - count ++; - } - } - - strv_free(patterns); - patterns = NULL; - - STRV_FOREACH(i, arg_user_units) { - _cleanup_free_ char *u = NULL; - - u = unit_name_mangle(*i, MANGLE_GLOB); - if (!u) - return log_oom(); - - if (string_is_glob(u)) { - r = strv_push(&patterns, u); - if (r < 0) - return r; - u = NULL; - } else { - r = add_matches_for_user_unit(j, u, getuid()); - if (r < 0) - return r; - r = sd_journal_add_disjunction(j); - if (r < 0) - return r; - count ++; - } - } - - if (!strv_isempty(patterns)) { - _cleanup_set_free_free_ Set *units = NULL; - Iterator it; - char *u; - - r = get_possible_units(j, USER_UNITS, patterns, &units); - if (r < 0) - return r; - - SET_FOREACH(u, units, it) { - r = add_matches_for_user_unit(j, u, getuid()); - if (r < 0) - return r; - r = sd_journal_add_disjunction(j); - if (r < 0) - return r; - count ++; - } - } - - /* Complain if the user request matches but nothing whatsoever was - * found, since otherwise everything would be matched. */ - if (!(strv_isempty(arg_system_units) && strv_isempty(arg_user_units)) && count == 0) - return -ENODATA; - - r = sd_journal_add_conjunction(j); - if (r < 0) - return r; - - return 0; -} - -static int add_priorities(sd_journal *j) { - char match[] = "PRIORITY=0"; - int i, r; - assert(j); - - if (arg_priorities == 0xFF) - return 0; - - for (i = LOG_EMERG; i <= LOG_DEBUG; i++) - if (arg_priorities & (1 << i)) { - match[sizeof(match)-2] = '0' + i; - - r = sd_journal_add_match(j, match, strlen(match)); - if (r < 0) - return log_error_errno(r, "Failed to add match: %m"); - } - - r = sd_journal_add_conjunction(j); - if (r < 0) - return r; - - return 0; -} - - -static int add_syslog_identifier(sd_journal *j) { - int r; - char **i; - - assert(j); - - STRV_FOREACH(i, arg_syslog_identifier) { - char *u; - - u = strjoina("SYSLOG_IDENTIFIER=", *i); - r = sd_journal_add_match(j, u, 0); - if (r < 0) - return r; - r = sd_journal_add_disjunction(j); - if (r < 0) - return r; - } - - r = sd_journal_add_conjunction(j); - if (r < 0) - return r; - - return 0; -} - -static int setup_keys(void) { -#ifdef HAVE_GCRYPT - size_t mpk_size, seed_size, state_size, i; - uint8_t *mpk, *seed, *state; - int fd = -1, r; - sd_id128_t machine, boot; - char *p = NULL, *k = NULL; - struct FSSHeader h; - uint64_t n; - struct stat st; - - r = stat("/var/log/journal", &st); - if (r < 0 && errno != ENOENT && errno != ENOTDIR) - return log_error_errno(errno, "stat(\"%s\") failed: %m", "/var/log/journal"); - - if (r < 0 || !S_ISDIR(st.st_mode)) { - log_error("%s is not a directory, must be using persistent logging for FSS.", - "/var/log/journal"); - return r < 0 ? -errno : -ENOTDIR; - } - - r = sd_id128_get_machine(&machine); - if (r < 0) - return log_error_errno(r, "Failed to get machine ID: %m"); - - r = sd_id128_get_boot(&boot); - if (r < 0) - return log_error_errno(r, "Failed to get boot ID: %m"); - - if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss", - SD_ID128_FORMAT_VAL(machine)) < 0) - return log_oom(); - - if (arg_force) { - r = unlink(p); - if (r < 0 && errno != ENOENT) { - r = log_error_errno(errno, "unlink(\"%s\") failed: %m", p); - goto finish; - } - } else if (access(p, F_OK) >= 0) { - log_error("Sealing key file %s exists already. Use --force to recreate.", p); - r = -EEXIST; - goto finish; - } - - if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX", - SD_ID128_FORMAT_VAL(machine)) < 0) { - r = log_oom(); - goto finish; - } - - mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR); - mpk = alloca(mpk_size); - - seed_size = FSPRG_RECOMMENDED_SEEDLEN; - seed = alloca(seed_size); - - state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR); - state = alloca(state_size); - - fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY); - if (fd < 0) { - log_error_errno(errno, "Failed to open /dev/random: %m"); - r = -errno; - goto finish; - } - - log_info("Generating seed..."); - r = loop_read_exact(fd, seed, seed_size, true); - if (r < 0) { - log_error_errno(r, "Failed to read random seed: %m"); - goto finish; - } - - log_info("Generating key pair..."); - FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR); - - log_info("Generating sealing key..."); - FSPRG_GenState0(state, mpk, seed, seed_size); - - assert(arg_interval > 0); - - n = now(CLOCK_REALTIME); - n /= arg_interval; - - safe_close(fd); - fd = mkostemp_safe(k, O_WRONLY|O_CLOEXEC); - if (fd < 0) { - log_error_errno(errno, "Failed to open %s: %m", k); - r = -errno; - goto finish; - } - - /* Enable secure remove, exclusion from dump, synchronous - * writing and in-place updating */ - r = chattr_fd(fd, true, FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL); - if (r < 0) - log_warning_errno(errno, "Failed to set file attributes: %m"); - - zero(h); - memcpy(h.signature, "KSHHRHLP", 8); - h.machine_id = machine; - h.boot_id = boot; - h.header_size = htole64(sizeof(h)); - h.start_usec = htole64(n * arg_interval); - h.interval_usec = htole64(arg_interval); - h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR); - h.fsprg_state_size = htole64(state_size); - - r = loop_write(fd, &h, sizeof(h), false); - if (r < 0) { - log_error_errno(r, "Failed to write header: %m"); - goto finish; - } - - r = loop_write(fd, state, state_size, false); - if (r < 0) { - log_error_errno(r, "Failed to write state: %m"); - goto finish; - } - - if (link(k, p) < 0) { - log_error_errno(errno, "Failed to link file: %m"); - r = -errno; - goto finish; - } - - if (on_tty()) { - fprintf(stderr, - "\n" - "The new key pair has been generated. The " ANSI_HIGHLIGHT_ON "secret sealing key" ANSI_HIGHLIGHT_OFF " has been written to\n" - "the following local file. This key file is automatically updated when the\n" - "sealing key is advanced. It should not be used on multiple hosts.\n" - "\n" - "\t%s\n" - "\n" - "Please write down the following " ANSI_HIGHLIGHT_ON "secret verification key" ANSI_HIGHLIGHT_OFF ". It should be stored\n" - "at a safe location and should not be saved locally on disk.\n" - "\n\t" ANSI_HIGHLIGHT_RED_ON, p); - fflush(stderr); - } - for (i = 0; i < seed_size; i++) { - if (i > 0 && i % 3 == 0) - putchar('-'); - printf("%02x", ((uint8_t*) seed)[i]); - } - - printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval); - - if (on_tty()) { - char tsb[FORMAT_TIMESPAN_MAX], *hn; - - fprintf(stderr, - ANSI_HIGHLIGHT_OFF "\n" - "The sealing key is automatically changed every %s.\n", - format_timespan(tsb, sizeof(tsb), arg_interval, 0)); - - hn = gethostname_malloc(); - - if (hn) { - hostname_cleanup(hn, false); - fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine)); - } else - fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine)); - -#ifdef HAVE_QRENCODE - /* If this is not an UTF-8 system don't print any QR codes */ - if (is_locale_utf8()) { - fputs("\nTo transfer the verification key to your phone please scan the QR code below:\n\n", stderr); - print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine); - } -#endif - free(hn); - } - - r = 0; - -finish: - safe_close(fd); - - if (k) { - unlink(k); - free(k); - } - - free(p); - - return r; -#else - log_error("Forward-secure sealing not available."); - return -EOPNOTSUPP; -#endif -} - -static int verify(sd_journal *j) { - int r = 0; - Iterator i; - JournalFile *f; - - assert(j); - - log_show_color(true); - - ORDERED_HASHMAP_FOREACH(f, j->files, i) { - int k; - usec_t first = 0, validated = 0, last = 0; - -#ifdef HAVE_GCRYPT - if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) - log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path); -#endif - - k = journal_file_verify(f, arg_verify_key, &first, &validated, &last, true); - if (k == -EINVAL) { - /* If the key was invalid give up right-away. */ - return k; - } else if (k < 0) { - log_warning("FAIL: %s (%s)", f->path, strerror(-k)); - r = k; - } else { - char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX]; - log_info("PASS: %s", f->path); - - if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) { - if (validated > 0) { - log_info("=> Validated from %s to %s, final %s entries not sealed.", - format_timestamp_maybe_utc(a, sizeof(a), first), - format_timestamp_maybe_utc(b, sizeof(b), validated), - format_timespan(c, sizeof(c), last > validated ? last - validated : 0, 0)); - } else if (last > 0) - log_info("=> No sealing yet, %s of entries not sealed.", - format_timespan(c, sizeof(c), last - first, 0)); - else - log_info("=> No sealing yet, no entries in file."); - } - } - } - - return r; -} - -#ifdef HAVE_ACL -static int access_check_var_log_journal(sd_journal *j) { - _cleanup_strv_free_ char **g = NULL; - bool have_access; - int r; - - assert(j); - - have_access = in_group("systemd-journal") > 0; - - if (!have_access) { - const char* dir; - - if (access("/run/log/journal", F_OK) >= 0) - dir = "/run/log/journal"; - else - dir = "/var/log/journal"; - - /* Let's enumerate all groups from the default ACL of - * the directory, which generally should allow access - * to most journal files too */ - r = search_acl_groups(&g, dir, &have_access); - if (r < 0) - return r; - } - - if (!have_access) { - - if (strv_isempty(g)) - log_notice("Hint: You are currently not seeing messages from other users and the system.\n" - " Users in the 'systemd-journal' group can see all messages. Pass -q to\n" - " turn off this notice."); - else { - _cleanup_free_ char *s = NULL; - - r = strv_extend(&g, "systemd-journal"); - if (r < 0) - return log_oom(); - - strv_sort(g); - strv_uniq(g); - - s = strv_join(g, "', '"); - if (!s) - return log_oom(); - - log_notice("Hint: You are currently not seeing messages from other users and the system.\n" - " Users in groups '%s' can see all messages.\n" - " Pass -q to turn off this notice.", s); - } - } - - return 0; -} -#endif - -static int access_check(sd_journal *j) { - Iterator it; - void *code; - int r = 0; - - assert(j); - - if (set_isempty(j->errors)) { - if (ordered_hashmap_isempty(j->files)) - log_notice("No journal files were found."); - return 0; - } - - if (set_contains(j->errors, INT_TO_PTR(-EACCES))) { -#ifdef HAVE_ACL - /* If /run/log/journal or /var/log/journal exist, try - to pring a nice notice if the user lacks access to it. */ - if (!arg_quiet && geteuid() != 0) { - r = access_check_var_log_journal(j); - if (r < 0) - return r; - } -#else - if (geteuid() != 0 && in_group("systemd-journal") <= 0) { - log_error("Unprivileged users cannot access messages. Users in the 'systemd-journal' group\n" - "group may access messages."); - return -EACCES; - } -#endif - - if (ordered_hashmap_isempty(j->files)) { - log_error("No journal files were opened due to insufficient permissions."); - r = -EACCES; - } - } - - SET_FOREACH(code, j->errors, it) { - int err; - - err = -PTR_TO_INT(code); - assert(err > 0); - - if (err != EACCES) - log_warning_errno(err, "Error was encountered while opening journal files: %m"); - } - - return r; -} - -static int flush_to_var(void) { - _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_bus_close_unref_ sd_bus *bus = NULL; - _cleanup_close_ int watch_fd = -1; - int r; - - /* Quick exit */ - if (access("/run/systemd/journal/flushed", F_OK) >= 0) - return 0; - - /* OK, let's actually do the full logic, send SIGUSR1 to the - * daemon and set up inotify to wait for the flushed file to appear */ - r = bus_open_system_systemd(&bus); - if (r < 0) - return log_error_errno(r, "Failed to get D-Bus connection: %m"); - - r = sd_bus_call_method( - bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "KillUnit", - &error, - NULL, - "ssi", "systemd-journald.service", "main", SIGUSR1); - if (r < 0) { - log_error("Failed to kill journal service: %s", bus_error_message(&error, r)); - return r; - } - - mkdir_p("/run/systemd/journal", 0755); - - watch_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); - if (watch_fd < 0) - return log_error_errno(errno, "Failed to create inotify watch: %m"); - - r = inotify_add_watch(watch_fd, "/run/systemd/journal", IN_CREATE|IN_DONT_FOLLOW|IN_ONLYDIR); - if (r < 0) - return log_error_errno(errno, "Failed to watch journal directory: %m"); - - for (;;) { - if (access("/run/systemd/journal/flushed", F_OK) >= 0) - break; - - if (errno != ENOENT) - return log_error_errno(errno, "Failed to check for existence of /run/systemd/journal/flushed: %m"); - - r = fd_wait_for_event(watch_fd, POLLIN, USEC_INFINITY); - if (r < 0) - return log_error_errno(r, "Failed to wait for event: %m"); - - r = flush_fd(watch_fd); - if (r < 0) - return log_error_errno(r, "Failed to flush inotify events: %m"); - } - - return 0; -} - -int main(int argc, char *argv[]) { - int r; - _cleanup_journal_close_ sd_journal *j = NULL; - bool need_seek = false; - sd_id128_t previous_boot_id; - bool previous_boot_id_valid = false, first_line = true; - int n_shown = 0; - bool ellipsized = false; - - setlocale(LC_ALL, ""); - log_parse_environment(); - log_open(); - - r = parse_argv(argc, argv); - if (r <= 0) - goto finish; - - signal(SIGWINCH, columns_lines_cache_reset); - sigbus_install(); - - /* Increase max number of open files to 16K if we can, we - * might needs this when browsing journal files, which might - * be split up into many files. */ - setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(16384)); - - if (arg_action == ACTION_NEW_ID128) { - r = generate_new_id128(); - goto finish; - } - - if (arg_action == ACTION_FLUSH) { - r = flush_to_var(); - goto finish; - } - - if (arg_action == ACTION_SETUP_KEYS) { - r = setup_keys(); - goto finish; - } - - if (arg_action == ACTION_UPDATE_CATALOG || - arg_action == ACTION_LIST_CATALOG || - arg_action == ACTION_DUMP_CATALOG) { - - _cleanup_free_ char *database; - - database = path_join(arg_root, CATALOG_DATABASE, NULL); - if (!database) { - r = log_oom(); - goto finish; - } - - if (arg_action == ACTION_UPDATE_CATALOG) { - r = catalog_update(database, arg_root, catalog_file_dirs); - if (r < 0) - log_error_errno(r, "Failed to list catalog: %m"); - } else { - bool oneline = arg_action == ACTION_LIST_CATALOG; - - if (optind < argc) - r = catalog_list_items(stdout, database, - oneline, argv + optind); - else - r = catalog_list(stdout, database, oneline); - if (r < 0) - log_error_errno(r, "Failed to list catalog: %m"); - } - - goto finish; - } - - if (arg_directory) - r = sd_journal_open_directory(&j, arg_directory, arg_journal_type); - else if (arg_file) - r = sd_journal_open_files(&j, (const char**) arg_file, 0); - else if (arg_machine) - r = sd_journal_open_container(&j, arg_machine, 0); - else - r = sd_journal_open(&j, !arg_merge*SD_JOURNAL_LOCAL_ONLY + arg_journal_type); - if (r < 0) { - log_error_errno(r, "Failed to open %s: %m", - arg_directory ? arg_directory : arg_file ? "files" : "journal"); - return EXIT_FAILURE; - } - - r = access_check(j); - if (r < 0) - return EXIT_FAILURE; - - if (arg_action == ACTION_VERIFY) { - r = verify(j); - goto finish; - } - - if (arg_action == ACTION_PRINT_HEADER) { - journal_print_header(j); - return EXIT_SUCCESS; - } - - if (arg_action == ACTION_DISK_USAGE) { - uint64_t bytes = 0; - char sbytes[FORMAT_BYTES_MAX]; - - r = sd_journal_get_usage(j, &bytes); - if (r < 0) - return EXIT_FAILURE; - - printf("Archived and active journals take up %s on disk.\n", - format_bytes(sbytes, sizeof(sbytes), bytes)); - return EXIT_SUCCESS; - } - - if (arg_action == ACTION_VACUUM) { - Directory *d; - Iterator i; - - HASHMAP_FOREACH(d, j->directories_by_path, i) { - int q; - - if (d->is_root) - continue; - - q = journal_directory_vacuum(d->path, arg_vacuum_size, arg_vacuum_time, NULL, true); - if (q < 0) { - log_error_errno(q, "Failed to vacuum: %m"); - r = q; - } - } - - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; - } - - if (arg_action == ACTION_LIST_BOOTS) { - r = list_boots(j); - goto finish; - } - - /* add_boot() must be called first! - * It may need to seek the journal to find parent boot IDs. */ - r = add_boot(j); - if (r < 0) - return EXIT_FAILURE; - - r = add_dmesg(j); - if (r < 0) - return EXIT_FAILURE; - - r = add_units(j); - strv_free(arg_system_units); - strv_free(arg_user_units); - - if (r < 0) { - log_error_errno(r, "Failed to add filter for units: %m"); - return EXIT_FAILURE; - } - - r = add_syslog_identifier(j); - if (r < 0) { - log_error_errno(r, "Failed to add filter for syslog identifiers: %m"); - return EXIT_FAILURE; - } - - r = add_priorities(j); - if (r < 0) { - log_error_errno(r, "Failed to add filter for priorities: %m"); - return EXIT_FAILURE; - } - - r = add_matches(j, argv + optind); - if (r < 0) { - log_error_errno(r, "Failed to add filters: %m"); - return EXIT_FAILURE; - } - - if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) { - _cleanup_free_ char *filter; - - filter = journal_make_match_string(j); - log_debug("Journal filter: %s", filter); - } - - if (arg_field) { - const void *data; - size_t size; - - r = sd_journal_set_data_threshold(j, 0); - if (r < 0) { - log_error("Failed to unset data size threshold"); - return EXIT_FAILURE; - } - - r = sd_journal_query_unique(j, arg_field); - if (r < 0) { - log_error_errno(r, "Failed to query unique data objects: %m"); - return EXIT_FAILURE; - } - - SD_JOURNAL_FOREACH_UNIQUE(j, data, size) { - const void *eq; - - if (arg_lines >= 0 && n_shown >= arg_lines) - break; - - eq = memchr(data, '=', size); - if (eq) - printf("%.*s\n", (int) (size - ((const uint8_t*) eq - (const uint8_t*) data + 1)), (const char*) eq + 1); - else - printf("%.*s\n", (int) size, (const char*) data); - - n_shown ++; - } - - return EXIT_SUCCESS; - } - - /* Opening the fd now means the first sd_journal_wait() will actually wait */ - if (arg_follow) { - r = sd_journal_get_fd(j); - if (r < 0) - return EXIT_FAILURE; - } - - if (arg_cursor || arg_after_cursor) { - r = sd_journal_seek_cursor(j, arg_cursor ?: arg_after_cursor); - if (r < 0) { - log_error_errno(r, "Failed to seek to cursor: %m"); - return EXIT_FAILURE; - } - if (!arg_reverse) - r = sd_journal_next_skip(j, 1 + !!arg_after_cursor); - else - r = sd_journal_previous_skip(j, 1 + !!arg_after_cursor); - - if (arg_after_cursor && r < 2) { - /* We couldn't find the next entry after the cursor. */ - if (arg_follow) - need_seek = true; - else - arg_lines = 0; - } - - } else if (arg_since_set && !arg_reverse) { - r = sd_journal_seek_realtime_usec(j, arg_since); - if (r < 0) { - log_error_errno(r, "Failed to seek to date: %m"); - return EXIT_FAILURE; - } - r = sd_journal_next(j); - - } else if (arg_until_set && arg_reverse) { - r = sd_journal_seek_realtime_usec(j, arg_until); - if (r < 0) { - log_error_errno(r, "Failed to seek to date: %m"); - return EXIT_FAILURE; - } - r = sd_journal_previous(j); - - } else if (arg_lines >= 0) { - r = sd_journal_seek_tail(j); - if (r < 0) { - log_error_errno(r, "Failed to seek to tail: %m"); - return EXIT_FAILURE; - } - - r = sd_journal_previous_skip(j, arg_lines); - - } else if (arg_reverse) { - r = sd_journal_seek_tail(j); - if (r < 0) { - log_error_errno(r, "Failed to seek to tail: %m"); - return EXIT_FAILURE; - } - - r = sd_journal_previous(j); - - } else { - r = sd_journal_seek_head(j); - if (r < 0) { - log_error_errno(r, "Failed to seek to head: %m"); - return EXIT_FAILURE; - } - - r = sd_journal_next(j); - } - - if (r < 0) { - log_error_errno(r, "Failed to iterate through journal: %m"); - return EXIT_FAILURE; - } - - if (!arg_follow) - pager_open_if_enabled(); - - if (!arg_quiet) { - usec_t start, end; - char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX]; - - r = sd_journal_get_cutoff_realtime_usec(j, &start, &end); - if (r < 0) { - log_error_errno(r, "Failed to get cutoff: %m"); - goto finish; - } - - if (r > 0) { - if (arg_follow) - printf("-- Logs begin at %s. --\n", - format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start)); - else - printf("-- Logs begin at %s, end at %s. --\n", - format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start), - format_timestamp_maybe_utc(end_buf, sizeof(end_buf), end)); - } - } - - for (;;) { - while (arg_lines < 0 || n_shown < arg_lines || (arg_follow && !first_line)) { - int flags; - - if (need_seek) { - if (!arg_reverse) - r = sd_journal_next(j); - else - r = sd_journal_previous(j); - if (r < 0) { - log_error_errno(r, "Failed to iterate through journal: %m"); - goto finish; - } - if (r == 0) - break; - } - - if (arg_until_set && !arg_reverse) { - usec_t usec; - - r = sd_journal_get_realtime_usec(j, &usec); - if (r < 0) { - log_error_errno(r, "Failed to determine timestamp: %m"); - goto finish; - } - if (usec > arg_until) - goto finish; - } - - if (arg_since_set && arg_reverse) { - usec_t usec; - - r = sd_journal_get_realtime_usec(j, &usec); - if (r < 0) { - log_error_errno(r, "Failed to determine timestamp: %m"); - goto finish; - } - if (usec < arg_since) - goto finish; - } - - if (!arg_merge && !arg_quiet) { - sd_id128_t boot_id; - - r = sd_journal_get_monotonic_usec(j, NULL, &boot_id); - if (r >= 0) { - if (previous_boot_id_valid && - !sd_id128_equal(boot_id, previous_boot_id)) - printf("%s-- Reboot --%s\n", - ansi_highlight(), ansi_highlight_off()); - - previous_boot_id = boot_id; - previous_boot_id_valid = true; - } - } - - flags = - arg_all * OUTPUT_SHOW_ALL | - arg_full * OUTPUT_FULL_WIDTH | - on_tty() * OUTPUT_COLOR | - arg_catalog * OUTPUT_CATALOG | - arg_utc * OUTPUT_UTC; - - r = output_journal(stdout, j, arg_output, 0, flags, &ellipsized); - need_seek = true; - if (r == -EADDRNOTAVAIL) - break; - else if (r < 0 || ferror(stdout)) - goto finish; - - n_shown++; - } - - if (!arg_follow) { - if (arg_show_cursor) { - _cleanup_free_ char *cursor = NULL; - - r = sd_journal_get_cursor(j, &cursor); - if (r < 0 && r != -EADDRNOTAVAIL) - log_error_errno(r, "Failed to get cursor: %m"); - else if (r >= 0) - printf("-- cursor: %s\n", cursor); - } - - break; - } - - r = sd_journal_wait(j, (uint64_t) -1); - if (r < 0) { - log_error_errno(r, "Couldn't wait for journal event: %m"); - goto finish; - } - - first_line = false; - } - -finish: - pager_close(); - - strv_free(arg_file); - - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} diff --git a/src/journal/journald-audit.c b/src/journal/journald-audit.c deleted file mode 100644 index 46eb82fa34..0000000000 --- a/src/journal/journald-audit.c +++ /dev/null @@ -1,555 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "missing.h" -#include "journald-audit.h" - -typedef struct MapField { - const char *audit_field; - const char *journal_field; - int (*map)(const char *field, const char **p, struct iovec **iov, size_t *n_iov_allocated, unsigned *n_iov); -} MapField; - -static int map_simple_field(const char *field, const char **p, struct iovec **iov, size_t *n_iov_allocated, unsigned *n_iov) { - _cleanup_free_ char *c = NULL; - size_t l = 0, allocated = 0; - const char *e; - - assert(field); - assert(p); - assert(iov); - assert(n_iov); - - l = strlen(field); - allocated = l + 1; - c = malloc(allocated); - if (!c) - return -ENOMEM; - - memcpy(c, field, l); - for (e = *p; *e != ' ' && *e != 0; e++) { - if (!GREEDY_REALLOC(c, allocated, l+2)) - return -ENOMEM; - - c[l++] = *e; - } - - c[l] = 0; - - if (!GREEDY_REALLOC(*iov, *n_iov_allocated, *n_iov + 1)) - return -ENOMEM; - - (*iov)[*n_iov].iov_base = c; - (*iov)[*n_iov].iov_len = l; - (*n_iov) ++; - - *p = e; - c = NULL; - - return 1; -} - -static int map_string_field_internal(const char *field, const char **p, struct iovec **iov, size_t *n_iov_allocated, unsigned *n_iov, bool filter_printable) { - _cleanup_free_ char *c = NULL; - const char *s, *e; - size_t l; - - assert(field); - assert(p); - assert(iov); - assert(n_iov); - - /* The kernel formats string fields in one of two formats. */ - - if (**p == '"') { - /* Normal quoted syntax */ - s = *p + 1; - e = strchr(s, '"'); - if (!e) - return 0; - - l = strlen(field) + (e - s); - c = malloc(l+1); - if (!c) - return -ENOMEM; - - *((char*) mempcpy(stpcpy(c, field), s, e - s)) = 0; - - e += 1; - - } else if (unhexchar(**p) >= 0) { - /* Hexadecimal escaping */ - size_t allocated = 0; - - l = strlen(field); - allocated = l + 2; - c = malloc(allocated); - if (!c) - return -ENOMEM; - - memcpy(c, field, l); - for (e = *p; *e != ' ' && *e != 0; e += 2) { - int a, b; - uint8_t x; - - a = unhexchar(e[0]); - if (a < 0) - return 0; - - b = unhexchar(e[1]); - if (b < 0) - return 0; - - x = ((uint8_t) a << 4 | (uint8_t) b); - - if (filter_printable && x < (uint8_t) ' ') - x = (uint8_t) ' '; - - if (!GREEDY_REALLOC(c, allocated, l+2)) - return -ENOMEM; - - c[l++] = (char) x; - } - - c[l] = 0; - } else - return 0; - - if (!GREEDY_REALLOC(*iov, *n_iov_allocated, *n_iov + 1)) - return -ENOMEM; - - (*iov)[*n_iov].iov_base = c; - (*iov)[*n_iov].iov_len = l; - (*n_iov) ++; - - *p = e; - c = NULL; - - return 1; -} - -static int map_string_field(const char *field, const char **p, struct iovec **iov, size_t *n_iov_allocated, unsigned *n_iov) { - return map_string_field_internal(field, p, iov, n_iov_allocated, n_iov, false); -} - -static int map_string_field_printable(const char *field, const char **p, struct iovec **iov, size_t *n_iov_allocated, unsigned *n_iov) { - return map_string_field_internal(field, p, iov, n_iov_allocated, n_iov, true); -} - -static int map_generic_field(const char *prefix, const char **p, struct iovec **iov, size_t *n_iov_allocated, unsigned *n_iov) { - const char *e, *f; - char *c, *t; - int r; - - /* Implements fallback mappings for all fields we don't know */ - - for (e = *p; e < *p + 16; e++) { - - if (*e == 0 || *e == ' ') - return 0; - - if (*e == '=') - break; - - if (!((*e >= 'a' && *e <= 'z') || - (*e >= 'A' && *e <= 'Z') || - (*e >= '0' && *e <= '9') || - *e == '_' || *e == '-')) - return 0; - } - - if (e <= *p || e >= *p + 16) - return 0; - - c = alloca(strlen(prefix) + (e - *p) + 2); - - t = stpcpy(c, prefix); - for (f = *p; f < e; f++) { - char x; - - if (*f >= 'a' && *f <= 'z') - x = (*f - 'a') + 'A'; /* uppercase */ - else if (*f == '-') - x = '_'; /* dashes → underscores */ - else - x = *f; - - *(t++) = x; - } - strcpy(t, "="); - - e ++; - - r = map_simple_field(c, &e, iov, n_iov_allocated, n_iov); - if (r < 0) - return r; - - *p = e; - return r; -} - -/* Kernel fields are those occurring in the audit string before - * msg='. All of these fields are trusted, hence carry the "_" prefix. - * We try to translate the fields we know into our native names. The - * other's are generically mapped to _AUDIT_FIELD_XYZ= */ -static const MapField map_fields_kernel[] = { - - /* First, we map certain well-known audit fields into native - * well-known fields */ - { "pid=", "_PID=", map_simple_field }, - { "ppid=", "_PPID=", map_simple_field }, - { "uid=", "_UID=", map_simple_field }, - { "euid=", "_EUID=", map_simple_field }, - { "fsuid=", "_FSUID=", map_simple_field }, - { "gid=", "_GID=", map_simple_field }, - { "egid=", "_EGID=", map_simple_field }, - { "fsgid=", "_FSGID=", map_simple_field }, - { "tty=", "_TTY=", map_simple_field }, - { "ses=", "_AUDIT_SESSION=", map_simple_field }, - { "auid=", "_AUDIT_LOGINUID=", map_simple_field }, - { "subj=", "_SELINUX_CONTEXT=", map_simple_field }, - { "comm=", "_COMM=", map_string_field }, - { "exe=", "_EXE=", map_string_field }, - { "proctitle=", "_CMDLINE=", map_string_field_printable }, - - /* Some fields don't map to native well-known fields. However, - * we know that they are string fields, hence let's undo - * string field escaping for them, though we stick to the - * generic field names. */ - { "path=", "_AUDIT_FIELD_PATH=", map_string_field }, - { "dev=", "_AUDIT_FIELD_DEV=", map_string_field }, - { "name=", "_AUDIT_FIELD_NAME=", map_string_field }, - {} -}; - -/* Userspace fields are those occurring in the audit string after - * msg='. All of these fields are untrusted, hence carry no "_" - * prefix. We map the fields we don't know to AUDIT_FIELD_XYZ= */ -static const MapField map_fields_userspace[] = { - { "cwd=", "AUDIT_FIELD_CWD=", map_string_field }, - { "cmd=", "AUDIT_FIELD_CMD=", map_string_field }, - { "acct=", "AUDIT_FIELD_ACCT=", map_string_field }, - { "exe=", "AUDIT_FIELD_EXE=", map_string_field }, - { "comm=", "AUDIT_FIELD_COMM=", map_string_field }, - {} -}; - -static int map_all_fields( - const char *p, - const MapField map_fields[], - const char *prefix, - bool handle_msg, - struct iovec **iov, - size_t *n_iov_allocated, - unsigned *n_iov) { - - int r; - - assert(p); - assert(iov); - assert(n_iov_allocated); - assert(n_iov); - - for (;;) { - bool mapped = false; - const MapField *m; - const char *v; - - p += strspn(p, WHITESPACE); - - if (*p == 0) - return 0; - - if (handle_msg) { - v = startswith(p, "msg='"); - if (v) { - const char *e; - char *c; - - /* Userspace message. It's enclosed in - simple quotation marks, is not - escaped, but the last field in the - line, hence let's remove the - quotation mark, and apply the - userspace mapping instead of the - kernel mapping. */ - - e = endswith(v, "'"); - if (!e) - return 0; /* don't continue splitting up if the final quotation mark is missing */ - - c = strndupa(v, e - v); - return map_all_fields(c, map_fields_userspace, "AUDIT_FIELD_", false, iov, n_iov_allocated, n_iov); - } - } - - /* Try to map the kernel fields to our own names */ - for (m = map_fields; m->audit_field; m++) { - v = startswith(p, m->audit_field); - if (!v) - continue; - - r = m->map(m->journal_field, &v, iov, n_iov_allocated, n_iov); - if (r < 0) - return log_debug_errno(r, "Failed to parse audit array: %m"); - - if (r > 0) { - mapped = true; - p = v; - break; - } - } - - if (!mapped) { - r = map_generic_field(prefix, &p, iov, n_iov_allocated, n_iov); - if (r < 0) - return log_debug_errno(r, "Failed to parse audit array: %m"); - - if (r == 0) { - /* Couldn't process as generic field, let's just skip over it */ - p += strcspn(p, WHITESPACE); - } - } - } -} - -static void process_audit_string(Server *s, int type, const char *data, size_t size) { - _cleanup_free_ struct iovec *iov = NULL; - size_t n_iov_allocated = 0; - unsigned n_iov = 0, k; - uint64_t seconds, msec, id; - const char *p; - unsigned z; - char id_field[sizeof("_AUDIT_ID=") + DECIMAL_STR_MAX(uint64_t)], - type_field[sizeof("_AUDIT_TYPE=") + DECIMAL_STR_MAX(int)], - source_time_field[sizeof("_SOURCE_REALTIME_TIMESTAMP=") + DECIMAL_STR_MAX(usec_t)]; - char *m; - - assert(s); - - if (size <= 0) - return; - - if (!data) - return; - - /* Note that the input buffer is NUL terminated, but let's - * check whether there is a spurious NUL byte */ - if (memchr(data, 0, size)) - return; - - p = startswith(data, "audit"); - if (!p) - return; - - if (sscanf(p, "(%" PRIu64 ".%" PRIu64 ":%" PRIu64 "):%n", - &seconds, - &msec, - &id, - &k) != 3) - return; - - p += k; - p += strspn(p, WHITESPACE); - - if (isempty(p)) - return; - - n_iov_allocated = N_IOVEC_META_FIELDS + 7; - iov = new(struct iovec, n_iov_allocated); - if (!iov) { - log_oom(); - return; - } - - IOVEC_SET_STRING(iov[n_iov++], "_TRANSPORT=audit"); - - sprintf(source_time_field, "_SOURCE_REALTIME_TIMESTAMP=%" PRIu64, - (usec_t) seconds * USEC_PER_SEC + (usec_t) msec * USEC_PER_MSEC); - IOVEC_SET_STRING(iov[n_iov++], source_time_field); - - sprintf(type_field, "_AUDIT_TYPE=%i", type); - IOVEC_SET_STRING(iov[n_iov++], type_field); - - sprintf(id_field, "_AUDIT_ID=%" PRIu64, id); - IOVEC_SET_STRING(iov[n_iov++], id_field); - - assert_cc(32 == LOG_AUTH); - IOVEC_SET_STRING(iov[n_iov++], "SYSLOG_FACILITY=32"); - IOVEC_SET_STRING(iov[n_iov++], "SYSLOG_IDENTIFIER=audit"); - - m = alloca(strlen("MESSAGE=<audit-") + DECIMAL_STR_MAX(int) + strlen("> ") + strlen(p) + 1); - sprintf(m, "MESSAGE=<audit-%i> %s", type, p); - IOVEC_SET_STRING(iov[n_iov++], m); - - z = n_iov; - - map_all_fields(p, map_fields_kernel, "_AUDIT_FIELD_", true, &iov, &n_iov_allocated, &n_iov); - - if (!GREEDY_REALLOC(iov, n_iov_allocated, n_iov + N_IOVEC_META_FIELDS)) { - log_oom(); - goto finish; - } - - server_dispatch_message(s, iov, n_iov, n_iov_allocated, NULL, NULL, NULL, 0, NULL, LOG_NOTICE, 0); - -finish: - /* free() all entries that map_all_fields() added. All others - * are allocated on the stack or are constant. */ - - for (; z < n_iov; z++) - free(iov[z].iov_base); -} - -void server_process_audit_message( - Server *s, - const void *buffer, - size_t buffer_size, - const struct ucred *ucred, - const union sockaddr_union *sa, - socklen_t salen) { - - const struct nlmsghdr *nl = buffer; - - assert(s); - - if (buffer_size < ALIGN(sizeof(struct nlmsghdr))) - return; - - assert(buffer); - - /* Filter out fake data */ - if (!sa || - salen != sizeof(struct sockaddr_nl) || - sa->nl.nl_family != AF_NETLINK || - sa->nl.nl_pid != 0) { - log_debug("Audit netlink message from invalid sender."); - return; - } - - if (!ucred || ucred->pid != 0) { - log_debug("Audit netlink message with invalid credentials."); - return; - } - - if (!NLMSG_OK(nl, buffer_size)) { - log_error("Audit netlink message truncated."); - return; - } - - /* Ignore special Netlink messages */ - if (IN_SET(nl->nlmsg_type, NLMSG_NOOP, NLMSG_ERROR)) - return; - - /* Below AUDIT_FIRST_USER_MSG theer are only control messages, let's ignore those */ - if (nl->nlmsg_type < AUDIT_FIRST_USER_MSG) - return; - - process_audit_string(s, nl->nlmsg_type, NLMSG_DATA(nl), nl->nlmsg_len - ALIGN(sizeof(struct nlmsghdr))); -} - -static int enable_audit(int fd, bool b) { - struct { - union { - struct nlmsghdr header; - uint8_t header_space[NLMSG_HDRLEN]; - }; - struct audit_status body; - } _packed_ request = { - .header.nlmsg_len = NLMSG_LENGTH(sizeof(struct audit_status)), - .header.nlmsg_type = AUDIT_SET, - .header.nlmsg_flags = NLM_F_REQUEST, - .header.nlmsg_seq = 1, - .header.nlmsg_pid = 0, - .body.mask = AUDIT_STATUS_ENABLED, - .body.enabled = b, - }; - union sockaddr_union sa = { - .nl.nl_family = AF_NETLINK, - .nl.nl_pid = 0, - }; - struct iovec iovec = { - .iov_base = &request, - .iov_len = NLMSG_LENGTH(sizeof(struct audit_status)), - }; - struct msghdr mh = { - .msg_iov = &iovec, - .msg_iovlen = 1, - .msg_name = &sa.sa, - .msg_namelen = sizeof(sa.nl), - }; - - ssize_t n; - - n = sendmsg(fd, &mh, MSG_NOSIGNAL); - if (n < 0) - return -errno; - if (n != NLMSG_LENGTH(sizeof(struct audit_status))) - return -EIO; - - /* We don't wait for the result here, we can't do anything - * about it anyway */ - - return 0; -} - -int server_open_audit(Server *s) { - static const int one = 1; - int r; - - if (s->audit_fd < 0) { - static const union sockaddr_union sa = { - .nl.nl_family = AF_NETLINK, - .nl.nl_pid = 0, - .nl.nl_groups = AUDIT_NLGRP_READLOG, - }; - - s->audit_fd = socket(AF_NETLINK, SOCK_RAW|SOCK_CLOEXEC|SOCK_NONBLOCK, NETLINK_AUDIT); - if (s->audit_fd < 0) { - if (errno == EAFNOSUPPORT || errno == EPROTONOSUPPORT) - log_debug("Audit not supported in the kernel."); - else - log_warning_errno(errno, "Failed to create audit socket, ignoring: %m"); - - return 0; - } - - r = bind(s->audit_fd, &sa.sa, sizeof(sa.nl)); - if (r < 0) - return log_error_errno(errno, "Failed to join audit multicast group: %m"); - } else - fd_nonblock(s->audit_fd, 1); - - r = setsockopt(s->audit_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); - if (r < 0) - return log_error_errno(errno, "Failed to set SO_PASSCRED on audit socket: %m"); - - r = sd_event_add_io(s->event, &s->audit_event_source, s->audit_fd, EPOLLIN, server_process_datagram, s); - if (r < 0) - return log_error_errno(r, "Failed to add audit fd to event loop: %m"); - - /* We are listening now, try to enable audit */ - r = enable_audit(s->audit_fd, true); - if (r < 0) - log_warning_errno(r, "Failed to issue audit enable call: %m"); - - return 0; -} diff --git a/src/journal/journald-audit.h b/src/journal/journald-audit.h deleted file mode 100644 index 68cdfb3410..0000000000 --- a/src/journal/journald-audit.h +++ /dev/null @@ -1,29 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "socket-util.h" -#include "journald-server.h" - -void server_process_audit_message(Server *s, const void *buffer, size_t buffer_size, const struct ucred *ucred, const union sockaddr_union *sa, socklen_t salen); - -int server_open_audit(Server*s); diff --git a/src/journal/journald-console.c b/src/journal/journald-console.c deleted file mode 100644 index f7ea779f0b..0000000000 --- a/src/journal/journald-console.c +++ /dev/null @@ -1,109 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <time.h> -#include <fcntl.h> -#include <sys/socket.h> - -#include "fileio.h" -#include "journald-server.h" -#include "journald-console.h" - -static bool prefix_timestamp(void) { - - static int cached_printk_time = -1; - - if (_unlikely_(cached_printk_time < 0)) { - _cleanup_free_ char *p = NULL; - - cached_printk_time = - read_one_line_file("/sys/module/printk/parameters/time", &p) >= 0 - && parse_boolean(p) > 0; - } - - return cached_printk_time; -} - -void server_forward_console( - Server *s, - int priority, - const char *identifier, - const char *message, - const struct ucred *ucred) { - - struct iovec iovec[5]; - struct timespec ts; - char tbuf[sizeof("[] ")-1 + DECIMAL_STR_MAX(ts.tv_sec) + DECIMAL_STR_MAX(ts.tv_nsec)-3 + 1]; - char header_pid[sizeof("[]: ")-1 + DECIMAL_STR_MAX(pid_t)]; - int n = 0, fd; - _cleanup_free_ char *ident_buf = NULL; - const char *tty; - - assert(s); - assert(message); - - if (LOG_PRI(priority) > s->max_level_console) - return; - - /* First: timestamp */ - if (prefix_timestamp()) { - assert_se(clock_gettime(CLOCK_MONOTONIC, &ts) == 0); - xsprintf(tbuf, "[%5"PRI_TIME".%06ld] ", - ts.tv_sec, - ts.tv_nsec / 1000); - IOVEC_SET_STRING(iovec[n++], tbuf); - } - - /* Second: identifier and PID */ - if (ucred) { - if (!identifier) { - get_process_comm(ucred->pid, &ident_buf); - identifier = ident_buf; - } - - xsprintf(header_pid, "["PID_FMT"]: ", ucred->pid); - - if (identifier) - IOVEC_SET_STRING(iovec[n++], identifier); - - IOVEC_SET_STRING(iovec[n++], header_pid); - } else if (identifier) { - IOVEC_SET_STRING(iovec[n++], identifier); - IOVEC_SET_STRING(iovec[n++], ": "); - } - - /* Fourth: message */ - IOVEC_SET_STRING(iovec[n++], message); - IOVEC_SET_STRING(iovec[n++], "\n"); - - tty = s->tty_path ? s->tty_path : "/dev/console"; - - fd = open_terminal(tty, O_WRONLY|O_NOCTTY|O_CLOEXEC); - if (fd < 0) { - log_debug_errno(errno, "Failed to open %s for logging: %m", tty); - return; - } - - if (writev(fd, iovec, n) < 0) - log_debug_errno(errno, "Failed to write to %s for logging: %m", tty); - - safe_close(fd); -} diff --git a/src/journal/journald-console.h b/src/journal/journald-console.h deleted file mode 100644 index d8af2267e1..0000000000 --- a/src/journal/journald-console.h +++ /dev/null @@ -1,26 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "journald-server.h" - -void server_forward_console(Server *s, int priority, const char *identifier, const char *message, const struct ucred *ucred); diff --git a/src/journal/journald-gperf.gperf b/src/journal/journald-gperf.gperf deleted file mode 100644 index 74554c1c34..0000000000 --- a/src/journal/journald-gperf.gperf +++ /dev/null @@ -1,42 +0,0 @@ -%{ -#include <stddef.h> -#include <sys/socket.h> -#include "conf-parser.h" -#include "journald-server.h" -%} -struct ConfigPerfItem; -%null_strings -%language=ANSI-C -%define slot-name section_and_lvalue -%define hash-function-name journald_gperf_hash -%define lookup-function-name journald_gperf_lookup -%readonly-tables -%omit-struct-type -%struct-type -%includes -%% -Journal.Storage, config_parse_storage, 0, offsetof(Server, storage) -Journal.Compress, config_parse_bool, 0, offsetof(Server, compress) -Journal.Seal, config_parse_bool, 0, offsetof(Server, seal) -Journal.SyncIntervalSec, config_parse_sec, 0, offsetof(Server, sync_interval_usec) -Journal.RateLimitInterval, config_parse_sec, 0, offsetof(Server, rate_limit_interval) -Journal.RateLimitBurst, config_parse_unsigned, 0, offsetof(Server, rate_limit_burst) -Journal.SystemMaxUse, config_parse_iec_off, 0, offsetof(Server, system_metrics.max_use) -Journal.SystemMaxFileSize, config_parse_iec_off, 0, offsetof(Server, system_metrics.max_size) -Journal.SystemKeepFree, config_parse_iec_off, 0, offsetof(Server, system_metrics.keep_free) -Journal.RuntimeMaxUse, config_parse_iec_off, 0, offsetof(Server, runtime_metrics.max_use) -Journal.RuntimeMaxFileSize, config_parse_iec_off, 0, offsetof(Server, runtime_metrics.max_size) -Journal.RuntimeKeepFree, config_parse_iec_off, 0, offsetof(Server, runtime_metrics.keep_free) -Journal.MaxRetentionSec, config_parse_sec, 0, offsetof(Server, max_retention_usec) -Journal.MaxFileSec, config_parse_sec, 0, offsetof(Server, max_file_usec) -Journal.ForwardToSyslog, config_parse_bool, 0, offsetof(Server, forward_to_syslog) -Journal.ForwardToKMsg, config_parse_bool, 0, offsetof(Server, forward_to_kmsg) -Journal.ForwardToConsole, config_parse_bool, 0, offsetof(Server, forward_to_console) -Journal.ForwardToWall, config_parse_bool, 0, offsetof(Server, forward_to_wall) -Journal.TTYPath, config_parse_path, 0, offsetof(Server, tty_path) -Journal.MaxLevelStore, config_parse_log_level, 0, offsetof(Server, max_level_store) -Journal.MaxLevelSyslog, config_parse_log_level, 0, offsetof(Server, max_level_syslog) -Journal.MaxLevelKMsg, config_parse_log_level, 0, offsetof(Server, max_level_kmsg) -Journal.MaxLevelConsole, config_parse_log_level, 0, offsetof(Server, max_level_console) -Journal.MaxLevelWall, config_parse_log_level, 0, offsetof(Server, max_level_wall) -Journal.SplitMode, config_parse_split_mode, 0, offsetof(Server, split_mode) diff --git a/src/journal/journald-kmsg.c b/src/journal/journald-kmsg.c deleted file mode 100644 index c4216c4043..0000000000 --- a/src/journal/journald-kmsg.c +++ /dev/null @@ -1,466 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> -#include <sys/epoll.h> -#include <fcntl.h> -#include <sys/mman.h> -#include <sys/socket.h> - -#include "systemd/sd-messages.h" -#include <libudev.h> - -#include "journald-server.h" -#include "journald-kmsg.h" -#include "journald-syslog.h" - -void server_forward_kmsg( - Server *s, - int priority, - const char *identifier, - const char *message, - const struct ucred *ucred) { - - struct iovec iovec[5]; - char header_priority[DECIMAL_STR_MAX(priority) + 3], - header_pid[sizeof("[]: ")-1 + DECIMAL_STR_MAX(pid_t) + 1]; - int n = 0; - char *ident_buf = NULL; - - assert(s); - assert(priority >= 0); - assert(priority <= 999); - assert(message); - - if (_unlikely_(LOG_PRI(priority) > s->max_level_kmsg)) - return; - - if (_unlikely_(s->dev_kmsg_fd < 0)) - return; - - /* Never allow messages with kernel facility to be written to - * kmsg, regardless where the data comes from. */ - priority = syslog_fixup_facility(priority); - - /* First: priority field */ - xsprintf(header_priority, "<%i>", priority); - IOVEC_SET_STRING(iovec[n++], header_priority); - - /* Second: identifier and PID */ - if (ucred) { - if (!identifier) { - get_process_comm(ucred->pid, &ident_buf); - identifier = ident_buf; - } - - xsprintf(header_pid, "["PID_FMT"]: ", ucred->pid); - - if (identifier) - IOVEC_SET_STRING(iovec[n++], identifier); - - IOVEC_SET_STRING(iovec[n++], header_pid); - } else if (identifier) { - IOVEC_SET_STRING(iovec[n++], identifier); - IOVEC_SET_STRING(iovec[n++], ": "); - } - - /* Fourth: message */ - IOVEC_SET_STRING(iovec[n++], message); - IOVEC_SET_STRING(iovec[n++], "\n"); - - if (writev(s->dev_kmsg_fd, iovec, n) < 0) - log_debug_errno(errno, "Failed to write to /dev/kmsg for logging: %m"); - - free(ident_buf); -} - -static bool is_us(const char *pid) { - pid_t t; - - assert(pid); - - if (parse_pid(pid, &t) < 0) - return false; - - return t == getpid(); -} - -static void dev_kmsg_record(Server *s, const char *p, size_t l) { - struct iovec iovec[N_IOVEC_META_FIELDS + 7 + N_IOVEC_KERNEL_FIELDS + 2 + N_IOVEC_UDEV_FIELDS]; - char *message = NULL, *syslog_priority = NULL, *syslog_pid = NULL, *syslog_facility = NULL, *syslog_identifier = NULL, *source_time = NULL; - int priority, r; - unsigned n = 0, z = 0, j; - unsigned long long usec; - char *identifier = NULL, *pid = NULL, *e, *f, *k; - uint64_t serial; - size_t pl; - char *kernel_device = NULL; - - assert(s); - assert(p); - - if (l <= 0) - return; - - e = memchr(p, ',', l); - if (!e) - return; - *e = 0; - - r = safe_atoi(p, &priority); - if (r < 0 || priority < 0 || priority > 999) - return; - - if (s->forward_to_kmsg && (priority & LOG_FACMASK) != LOG_KERN) - return; - - l -= (e - p) + 1; - p = e + 1; - e = memchr(p, ',', l); - if (!e) - return; - *e = 0; - - r = safe_atou64(p, &serial); - if (r < 0) - return; - - if (s->kernel_seqnum) { - /* We already read this one? */ - if (serial < *s->kernel_seqnum) - return; - - /* Did we lose any? */ - if (serial > *s->kernel_seqnum) - server_driver_message(s, SD_MESSAGE_JOURNAL_MISSED, "Missed %"PRIu64" kernel messages", - serial - *s->kernel_seqnum); - - /* Make sure we never read this one again. Note that - * we always store the next message serial we expect - * here, simply because this makes handling the first - * message with serial 0 easy. */ - *s->kernel_seqnum = serial + 1; - } - - l -= (e - p) + 1; - p = e + 1; - f = memchr(p, ';', l); - if (!f) - return; - /* Kernel 3.6 has the flags field, kernel 3.5 lacks that */ - e = memchr(p, ',', l); - if (!e || f < e) - e = f; - *e = 0; - - r = safe_atollu(p, &usec); - if (r < 0) - return; - - l -= (f - p) + 1; - p = f + 1; - e = memchr(p, '\n', l); - if (!e) - return; - *e = 0; - - pl = e - p; - l -= (e - p) + 1; - k = e + 1; - - for (j = 0; l > 0 && j < N_IOVEC_KERNEL_FIELDS; j++) { - char *m; - /* Meta data fields attached */ - - if (*k != ' ') - break; - - k ++, l --; - - e = memchr(k, '\n', l); - if (!e) - return; - - *e = 0; - - m = cunescape_length_with_prefix(k, e - k, "_KERNEL_"); - if (!m) - break; - - if (startswith(m, "_KERNEL_DEVICE=")) - kernel_device = m + 15; - - IOVEC_SET_STRING(iovec[n++], m); - z++; - - l -= (e - k) + 1; - k = e + 1; - } - - if (kernel_device) { - struct udev_device *ud; - - ud = udev_device_new_from_device_id(s->udev, kernel_device); - if (ud) { - const char *g; - struct udev_list_entry *ll; - char *b; - - g = udev_device_get_devnode(ud); - if (g) { - b = strappend("_UDEV_DEVNODE=", g); - if (b) { - IOVEC_SET_STRING(iovec[n++], b); - z++; - } - } - - g = udev_device_get_sysname(ud); - if (g) { - b = strappend("_UDEV_SYSNAME=", g); - if (b) { - IOVEC_SET_STRING(iovec[n++], b); - z++; - } - } - - j = 0; - ll = udev_device_get_devlinks_list_entry(ud); - udev_list_entry_foreach(ll, ll) { - - if (j > N_IOVEC_UDEV_FIELDS) - break; - - g = udev_list_entry_get_name(ll); - if (g) { - b = strappend("_UDEV_DEVLINK=", g); - if (b) { - IOVEC_SET_STRING(iovec[n++], b); - z++; - } - } - - j++; - } - - udev_device_unref(ud); - } - } - - if (asprintf(&source_time, "_SOURCE_MONOTONIC_TIMESTAMP=%llu", usec) >= 0) - IOVEC_SET_STRING(iovec[n++], source_time); - - IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=kernel"); - - if (asprintf(&syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK) >= 0) - IOVEC_SET_STRING(iovec[n++], syslog_priority); - - if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0) - IOVEC_SET_STRING(iovec[n++], syslog_facility); - - if ((priority & LOG_FACMASK) == LOG_KERN) - IOVEC_SET_STRING(iovec[n++], "SYSLOG_IDENTIFIER=kernel"); - else { - pl -= syslog_parse_identifier((const char**) &p, &identifier, &pid); - - /* Avoid any messages we generated ourselves via - * log_info() and friends. */ - if (pid && is_us(pid)) - goto finish; - - if (identifier) { - syslog_identifier = strappend("SYSLOG_IDENTIFIER=", identifier); - if (syslog_identifier) - IOVEC_SET_STRING(iovec[n++], syslog_identifier); - } - - if (pid) { - syslog_pid = strappend("SYSLOG_PID=", pid); - if (syslog_pid) - IOVEC_SET_STRING(iovec[n++], syslog_pid); - } - } - - message = cunescape_length_with_prefix(p, pl, "MESSAGE="); - if (message) - IOVEC_SET_STRING(iovec[n++], message); - - server_dispatch_message(s, iovec, n, ELEMENTSOF(iovec), NULL, NULL, NULL, 0, NULL, priority, 0); - -finish: - for (j = 0; j < z; j++) - free(iovec[j].iov_base); - - free(message); - free(syslog_priority); - free(syslog_identifier); - free(syslog_pid); - free(syslog_facility); - free(source_time); - free(identifier); - free(pid); -} - -static int server_read_dev_kmsg(Server *s) { - char buffer[8192+1]; /* the kernel-side limit per record is 8K currently */ - ssize_t l; - - assert(s); - assert(s->dev_kmsg_fd >= 0); - - l = read(s->dev_kmsg_fd, buffer, sizeof(buffer) - 1); - if (l == 0) - return 0; - if (l < 0) { - /* Old kernels who don't allow reading from /dev/kmsg - * return EINVAL when we try. So handle this cleanly, - * but don' try to ever read from it again. */ - if (errno == EINVAL) { - s->dev_kmsg_event_source = sd_event_source_unref(s->dev_kmsg_event_source); - return 0; - } - - if (errno == EAGAIN || errno == EINTR || errno == EPIPE) - return 0; - - log_error_errno(errno, "Failed to read from kernel: %m"); - return -errno; - } - - dev_kmsg_record(s, buffer, l); - return 1; -} - -int server_flush_dev_kmsg(Server *s) { - int r; - - assert(s); - - if (s->dev_kmsg_fd < 0) - return 0; - - if (!s->dev_kmsg_readable) - return 0; - - log_debug("Flushing /dev/kmsg..."); - - for (;;) { - r = server_read_dev_kmsg(s); - if (r < 0) - return r; - - if (r == 0) - break; - } - - return 0; -} - -static int dispatch_dev_kmsg(sd_event_source *es, int fd, uint32_t revents, void *userdata) { - Server *s = userdata; - - assert(es); - assert(fd == s->dev_kmsg_fd); - assert(s); - - if (revents & EPOLLERR) - log_warning("/dev/kmsg buffer overrun, some messages lost."); - - if (!(revents & EPOLLIN)) - log_error("Got invalid event from epoll for /dev/kmsg: %"PRIx32, revents); - - return server_read_dev_kmsg(s); -} - -int server_open_dev_kmsg(Server *s) { - int r; - - assert(s); - - s->dev_kmsg_fd = open("/dev/kmsg", O_RDWR|O_CLOEXEC|O_NONBLOCK|O_NOCTTY); - if (s->dev_kmsg_fd < 0) { - log_full(errno == ENOENT ? LOG_DEBUG : LOG_WARNING, - "Failed to open /dev/kmsg, ignoring: %m"); - return 0; - } - - r = sd_event_add_io(s->event, &s->dev_kmsg_event_source, s->dev_kmsg_fd, EPOLLIN, dispatch_dev_kmsg, s); - if (r < 0) { - - /* This will fail with EPERM on older kernels where - * /dev/kmsg is not readable. */ - if (r == -EPERM) { - r = 0; - goto fail; - } - - log_error_errno(r, "Failed to add /dev/kmsg fd to event loop: %m"); - goto fail; - } - - r = sd_event_source_set_priority(s->dev_kmsg_event_source, SD_EVENT_PRIORITY_IMPORTANT+10); - if (r < 0) { - log_error_errno(r, "Failed to adjust priority of kmsg event source: %m"); - goto fail; - } - - s->dev_kmsg_readable = true; - - return 0; - -fail: - s->dev_kmsg_event_source = sd_event_source_unref(s->dev_kmsg_event_source); - s->dev_kmsg_fd = safe_close(s->dev_kmsg_fd); - - return r; -} - -int server_open_kernel_seqnum(Server *s) { - _cleanup_close_ int fd; - uint64_t *p; - - assert(s); - - /* We store the seqnum we last read in an mmaped file. That - * way we can just use it like a variable, but it is - * persistent and automatically flushed at reboot. */ - - fd = open("/run/systemd/journal/kernel-seqnum", O_RDWR|O_CREAT|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW, 0644); - if (fd < 0) { - log_error_errno(errno, "Failed to open /run/systemd/journal/kernel-seqnum, ignoring: %m"); - return 0; - } - - if (posix_fallocate(fd, 0, sizeof(uint64_t)) < 0) { - log_error_errno(errno, "Failed to allocate sequential number file, ignoring: %m"); - return 0; - } - - p = mmap(NULL, sizeof(uint64_t), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); - if (p == MAP_FAILED) { - log_error_errno(errno, "Failed to map sequential number file, ignoring: %m"); - return 0; - } - - s->kernel_seqnum = p; - - return 0; -} diff --git a/src/journal/journald-kmsg.h b/src/journal/journald-kmsg.h deleted file mode 100644 index 9a9d089967..0000000000 --- a/src/journal/journald-kmsg.h +++ /dev/null @@ -1,31 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "journald-server.h" - -int server_open_dev_kmsg(Server *s); -int server_flush_dev_kmsg(Server *s); - -void server_forward_kmsg(Server *s, int priority, const char *identifier, const char *message, const struct ucred *ucred); - -int server_open_kernel_seqnum(Server *s); diff --git a/src/journal/journald-native.c b/src/journal/journald-native.c deleted file mode 100644 index 851625de04..0000000000 --- a/src/journal/journald-native.c +++ /dev/null @@ -1,461 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> -#include <stddef.h> -#include <sys/epoll.h> -#include <sys/mman.h> - -#include "socket-util.h" -#include "path-util.h" -#include "selinux-util.h" -#include "journald-server.h" -#include "journald-native.h" -#include "journald-kmsg.h" -#include "journald-console.h" -#include "journald-syslog.h" -#include "journald-wall.h" -#include "memfd-util.h" - -bool valid_user_field(const char *p, size_t l, bool allow_protected) { - const char *a; - - /* We kinda enforce POSIX syntax recommendations for - environment variables here, but make a couple of additional - requirements. - - http://pubs.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap08.html */ - - /* No empty field names */ - if (l <= 0) - return false; - - /* Don't allow names longer than 64 chars */ - if (l > 64) - return false; - - /* Variables starting with an underscore are protected */ - if (!allow_protected && p[0] == '_') - return false; - - /* Don't allow digits as first character */ - if (p[0] >= '0' && p[0] <= '9') - return false; - - /* Only allow A-Z0-9 and '_' */ - for (a = p; a < p + l; a++) - if ((*a < 'A' || *a > 'Z') && - (*a < '0' || *a > '9') && - *a != '_') - return false; - - return true; -} - -static bool allow_object_pid(const struct ucred *ucred) { - return ucred && ucred->uid == 0; -} - -void server_process_native_message( - Server *s, - const void *buffer, size_t buffer_size, - const struct ucred *ucred, - const struct timeval *tv, - const char *label, size_t label_len) { - - struct iovec *iovec = NULL; - unsigned n = 0, j, tn = (unsigned) -1; - const char *p; - size_t remaining, m = 0, entry_size = 0; - int priority = LOG_INFO; - char *identifier = NULL, *message = NULL; - pid_t object_pid = 0; - - assert(s); - assert(buffer || buffer_size == 0); - - p = buffer; - remaining = buffer_size; - - while (remaining > 0) { - const char *e, *q; - - e = memchr(p, '\n', remaining); - - if (!e) { - /* Trailing noise, let's ignore it, and flush what we collected */ - log_debug("Received message with trailing noise, ignoring."); - break; - } - - if (e == p) { - /* Entry separator */ - - if (entry_size + n + 1 > ENTRY_SIZE_MAX) { /* data + separators + trailer */ - log_debug("Entry is too big with %u properties and %zu bytes, ignoring.", n, entry_size); - continue; - } - - server_dispatch_message(s, iovec, n, m, ucred, tv, label, label_len, NULL, priority, object_pid); - n = 0; - priority = LOG_INFO; - entry_size = 0; - - p++; - remaining--; - continue; - } - - if (*p == '.' || *p == '#') { - /* Ignore control commands for now, and - * comments too. */ - remaining -= (e - p) + 1; - p = e + 1; - continue; - } - - /* A property follows */ - - /* n existing properties, 1 new, +1 for _TRANSPORT */ - if (!GREEDY_REALLOC(iovec, m, n + 2 + N_IOVEC_META_FIELDS + N_IOVEC_OBJECT_FIELDS)) { - log_oom(); - break; - } - - q = memchr(p, '=', e - p); - if (q) { - if (valid_user_field(p, q - p, false)) { - size_t l; - - l = e - p; - - /* If the field name starts with an - * underscore, skip the variable, - * since that indidates a trusted - * field */ - iovec[n].iov_base = (char*) p; - iovec[n].iov_len = l; - entry_size += iovec[n].iov_len; - n++; - - /* We need to determine the priority - * of this entry for the rate limiting - * logic */ - if (l == 10 && - startswith(p, "PRIORITY=") && - p[9] >= '0' && p[9] <= '9') - priority = (priority & LOG_FACMASK) | (p[9] - '0'); - - else if (l == 17 && - startswith(p, "SYSLOG_FACILITY=") && - p[16] >= '0' && p[16] <= '9') - priority = (priority & LOG_PRIMASK) | ((p[16] - '0') << 3); - - else if (l == 18 && - startswith(p, "SYSLOG_FACILITY=") && - p[16] >= '0' && p[16] <= '9' && - p[17] >= '0' && p[17] <= '9') - priority = (priority & LOG_PRIMASK) | (((p[16] - '0')*10 + (p[17] - '0')) << 3); - - else if (l >= 19 && - startswith(p, "SYSLOG_IDENTIFIER=")) { - char *t; - - t = strndup(p + 18, l - 18); - if (t) { - free(identifier); - identifier = t; - } - } else if (l >= 8 && - startswith(p, "MESSAGE=")) { - char *t; - - t = strndup(p + 8, l - 8); - if (t) { - free(message); - message = t; - } - } else if (l > strlen("OBJECT_PID=") && - l < strlen("OBJECT_PID=") + DECIMAL_STR_MAX(pid_t) && - startswith(p, "OBJECT_PID=") && - allow_object_pid(ucred)) { - char buf[DECIMAL_STR_MAX(pid_t)]; - memcpy(buf, p + strlen("OBJECT_PID="), l - strlen("OBJECT_PID=")); - char_array_0(buf); - - /* ignore error */ - parse_pid(buf, &object_pid); - } - } - - remaining -= (e - p) + 1; - p = e + 1; - continue; - } else { - le64_t l_le; - uint64_t l; - char *k; - - if (remaining < e - p + 1 + sizeof(uint64_t) + 1) { - log_debug("Failed to parse message, ignoring."); - break; - } - - memcpy(&l_le, e + 1, sizeof(uint64_t)); - l = le64toh(l_le); - - if (l > DATA_SIZE_MAX) { - log_debug("Received binary data block of %"PRIu64" bytes is too large, ignoring.", l); - break; - } - - if ((uint64_t) remaining < e - p + 1 + sizeof(uint64_t) + l + 1 || - e[1+sizeof(uint64_t)+l] != '\n') { - log_debug("Failed to parse message, ignoring."); - break; - } - - k = malloc((e - p) + 1 + l); - if (!k) { - log_oom(); - break; - } - - memcpy(k, p, e - p); - k[e - p] = '='; - memcpy(k + (e - p) + 1, e + 1 + sizeof(uint64_t), l); - - if (valid_user_field(p, e - p, false)) { - iovec[n].iov_base = k; - iovec[n].iov_len = (e - p) + 1 + l; - entry_size += iovec[n].iov_len; - n++; - } else - free(k); - - remaining -= (e - p) + 1 + sizeof(uint64_t) + l + 1; - p = e + 1 + sizeof(uint64_t) + l + 1; - } - } - - if (n <= 0) - goto finish; - - tn = n++; - IOVEC_SET_STRING(iovec[tn], "_TRANSPORT=journal"); - entry_size += strlen("_TRANSPORT=journal"); - - if (entry_size + n + 1 > ENTRY_SIZE_MAX) { /* data + separators + trailer */ - log_debug("Entry is too big with %u properties and %zu bytes, ignoring.", - n, entry_size); - goto finish; - } - - if (message) { - if (s->forward_to_syslog) - server_forward_syslog(s, priority, identifier, message, ucred, tv); - - if (s->forward_to_kmsg) - server_forward_kmsg(s, priority, identifier, message, ucred); - - if (s->forward_to_console) - server_forward_console(s, priority, identifier, message, ucred); - - if (s->forward_to_wall) - server_forward_wall(s, priority, identifier, message, ucred); - } - - server_dispatch_message(s, iovec, n, m, ucred, tv, label, label_len, NULL, priority, object_pid); - -finish: - for (j = 0; j < n; j++) { - if (j == tn) - continue; - - if (iovec[j].iov_base < buffer || - (const uint8_t*) iovec[j].iov_base >= (const uint8_t*) buffer + buffer_size) - free(iovec[j].iov_base); - } - - free(iovec); - free(identifier); - free(message); -} - -void server_process_native_file( - Server *s, - int fd, - const struct ucred *ucred, - const struct timeval *tv, - const char *label, size_t label_len) { - - struct stat st; - bool sealed; - int r; - - /* Data is in the passed fd, since it didn't fit in a - * datagram. */ - - assert(s); - assert(fd >= 0); - - /* If it's a memfd, check if it is sealed. If so, we can just - * use map it and use it, and do not need to copy the data - * out. */ - sealed = memfd_get_sealed(fd) > 0; - - if (!sealed && (!ucred || ucred->uid != 0)) { - _cleanup_free_ char *sl = NULL, *k = NULL; - const char *e; - - /* If this is not a sealed memfd, and the peer is unknown or - * unprivileged, then verify the path. */ - - if (asprintf(&sl, "/proc/self/fd/%i", fd) < 0) { - log_oom(); - return; - } - - r = readlink_malloc(sl, &k); - if (r < 0) { - log_error_errno(errno, "readlink(%s) failed: %m", sl); - return; - } - - e = path_startswith(k, "/dev/shm/"); - if (!e) - e = path_startswith(k, "/tmp/"); - if (!e) - e = path_startswith(k, "/var/tmp/"); - if (!e) { - log_error("Received file outside of allowed directories. Refusing."); - return; - } - - if (!filename_is_valid(e)) { - log_error("Received file in subdirectory of allowed directories. Refusing."); - return; - } - } - - if (fstat(fd, &st) < 0) { - log_error_errno(errno, "Failed to stat passed file, ignoring: %m"); - return; - } - - if (!S_ISREG(st.st_mode)) { - log_error("File passed is not regular. Ignoring."); - return; - } - - if (st.st_size <= 0) - return; - - if (st.st_size > ENTRY_SIZE_MAX) { - log_error("File passed too large. Ignoring."); - return; - } - - if (sealed) { - void *p; - size_t ps; - - /* The file is sealed, we can just map it and use it. */ - - ps = PAGE_ALIGN(st.st_size); - p = mmap(NULL, ps, PROT_READ, MAP_PRIVATE, fd, 0); - if (p == MAP_FAILED) { - log_error_errno(errno, "Failed to map memfd, ignoring: %m"); - return; - } - - server_process_native_message(s, p, st.st_size, ucred, tv, label, label_len); - assert_se(munmap(p, ps) >= 0); - } else { - _cleanup_free_ void *p = NULL; - ssize_t n; - - /* The file is not sealed, we can't map the file here, since - * clients might then truncate it and trigger a SIGBUS for - * us. So let's stupidly read it */ - - p = malloc(st.st_size); - if (!p) { - log_oom(); - return; - } - - n = pread(fd, p, st.st_size, 0); - if (n < 0) - log_error_errno(n, "Failed to read file, ignoring: %m"); - else if (n > 0) - server_process_native_message(s, p, n, ucred, tv, label, label_len); - } -} - -int server_open_native_socket(Server*s) { - static const int one = 1; - int r; - - assert(s); - - if (s->native_fd < 0) { - union sockaddr_union sa = { - .un.sun_family = AF_UNIX, - .un.sun_path = "/run/systemd/journal/socket", - }; - - s->native_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); - if (s->native_fd < 0) - return log_error_errno(errno, "socket() failed: %m"); - - unlink(sa.un.sun_path); - - r = bind(s->native_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)); - if (r < 0) - return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); - - chmod(sa.un.sun_path, 0666); - } else - fd_nonblock(s->native_fd, 1); - - r = setsockopt(s->native_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); - if (r < 0) - return log_error_errno(errno, "SO_PASSCRED failed: %m"); - -#ifdef HAVE_SELINUX - if (mac_selinux_use()) { - r = setsockopt(s->native_fd, SOL_SOCKET, SO_PASSSEC, &one, sizeof(one)); - if (r < 0) - log_warning_errno(errno, "SO_PASSSEC failed: %m"); - } -#endif - - r = setsockopt(s->native_fd, SOL_SOCKET, SO_TIMESTAMP, &one, sizeof(one)); - if (r < 0) - return log_error_errno(errno, "SO_TIMESTAMP failed: %m"); - - r = sd_event_add_io(s->event, &s->native_event_source, s->native_fd, EPOLLIN, server_process_datagram, s); - if (r < 0) - return log_error_errno(r, "Failed to add native server fd to event loop: %m"); - - return 0; -} diff --git a/src/journal/journald-native.h b/src/journal/journald-native.h deleted file mode 100644 index 2f9d458fb5..0000000000 --- a/src/journal/journald-native.h +++ /dev/null @@ -1,37 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "journald-server.h" - -/* Make sure not to make this smaller than the maximum coredump - * size. See COREDUMP_MAX in coredump.c */ -#define ENTRY_SIZE_MAX (1024*1024*770u) -#define DATA_SIZE_MAX (1024*1024*768u) - -bool valid_user_field(const char *p, size_t l, bool allow_protected); - -void server_process_native_message(Server *s, const void *buffer, size_t buffer_size, const struct ucred *ucred, const struct timeval *tv, const char *label, size_t label_len); - -void server_process_native_file(Server *s, int fd, const struct ucred *ucred, const struct timeval *tv, const char *label, size_t label_len); - -int server_open_native_socket(Server*s); diff --git a/src/journal/journald-rate-limit.c b/src/journal/journald-rate-limit.c deleted file mode 100644 index 6d779d2966..0000000000 --- a/src/journal/journald-rate-limit.c +++ /dev/null @@ -1,264 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <string.h> -#include <errno.h> - -#include "journald-rate-limit.h" -#include "list.h" -#include "util.h" -#include "hashmap.h" - -#define POOLS_MAX 5 -#define BUCKETS_MAX 127 -#define GROUPS_MAX 2047 - -static const int priority_map[] = { - [LOG_EMERG] = 0, - [LOG_ALERT] = 0, - [LOG_CRIT] = 0, - [LOG_ERR] = 1, - [LOG_WARNING] = 2, - [LOG_NOTICE] = 3, - [LOG_INFO] = 3, - [LOG_DEBUG] = 4 -}; - -typedef struct JournalRateLimitPool JournalRateLimitPool; -typedef struct JournalRateLimitGroup JournalRateLimitGroup; - -struct JournalRateLimitPool { - usec_t begin; - unsigned num; - unsigned suppressed; -}; - -struct JournalRateLimitGroup { - JournalRateLimit *parent; - - char *id; - JournalRateLimitPool pools[POOLS_MAX]; - unsigned long hash; - - LIST_FIELDS(JournalRateLimitGroup, bucket); - LIST_FIELDS(JournalRateLimitGroup, lru); -}; - -struct JournalRateLimit { - usec_t interval; - unsigned burst; - - JournalRateLimitGroup* buckets[BUCKETS_MAX]; - JournalRateLimitGroup *lru, *lru_tail; - - unsigned n_groups; - - uint8_t hash_key[16]; -}; - -JournalRateLimit *journal_rate_limit_new(usec_t interval, unsigned burst) { - JournalRateLimit *r; - - assert(interval > 0 || burst == 0); - - r = new0(JournalRateLimit, 1); - if (!r) - return NULL; - - r->interval = interval; - r->burst = burst; - - random_bytes(r->hash_key, sizeof(r->hash_key)); - - return r; -} - -static void journal_rate_limit_group_free(JournalRateLimitGroup *g) { - assert(g); - - if (g->parent) { - assert(g->parent->n_groups > 0); - - if (g->parent->lru_tail == g) - g->parent->lru_tail = g->lru_prev; - - LIST_REMOVE(lru, g->parent->lru, g); - LIST_REMOVE(bucket, g->parent->buckets[g->hash % BUCKETS_MAX], g); - - g->parent->n_groups --; - } - - free(g->id); - free(g); -} - -void journal_rate_limit_free(JournalRateLimit *r) { - assert(r); - - while (r->lru) - journal_rate_limit_group_free(r->lru); - - free(r); -} - -_pure_ static bool journal_rate_limit_group_expired(JournalRateLimitGroup *g, usec_t ts) { - unsigned i; - - assert(g); - - for (i = 0; i < POOLS_MAX; i++) - if (g->pools[i].begin + g->parent->interval >= ts) - return false; - - return true; -} - -static void journal_rate_limit_vacuum(JournalRateLimit *r, usec_t ts) { - assert(r); - - /* Makes room for at least one new item, but drop all - * expored items too. */ - - while (r->n_groups >= GROUPS_MAX || - (r->lru_tail && journal_rate_limit_group_expired(r->lru_tail, ts))) - journal_rate_limit_group_free(r->lru_tail); -} - -static JournalRateLimitGroup* journal_rate_limit_group_new(JournalRateLimit *r, const char *id, usec_t ts) { - JournalRateLimitGroup *g; - - assert(r); - assert(id); - - g = new0(JournalRateLimitGroup, 1); - if (!g) - return NULL; - - g->id = strdup(id); - if (!g->id) - goto fail; - - g->hash = string_hash_func(g->id, r->hash_key); - - journal_rate_limit_vacuum(r, ts); - - LIST_PREPEND(bucket, r->buckets[g->hash % BUCKETS_MAX], g); - LIST_PREPEND(lru, r->lru, g); - if (!g->lru_next) - r->lru_tail = g; - r->n_groups ++; - - g->parent = r; - return g; - -fail: - journal_rate_limit_group_free(g); - return NULL; -} - -static unsigned burst_modulate(unsigned burst, uint64_t available) { - unsigned k; - - /* Modulates the burst rate a bit with the amount of available - * disk space */ - - k = u64log2(available); - - /* 1MB */ - if (k <= 20) - return burst; - - burst = (burst * (k-20)) / 4; - - /* - * Example: - * - * <= 1MB = rate * 1 - * 16MB = rate * 2 - * 256MB = rate * 3 - * 4GB = rate * 4 - * 64GB = rate * 5 - * 1TB = rate * 6 - */ - - return burst; -} - -int journal_rate_limit_test(JournalRateLimit *r, const char *id, int priority, uint64_t available) { - unsigned long h; - JournalRateLimitGroup *g; - JournalRateLimitPool *p; - unsigned burst; - usec_t ts; - - assert(id); - - if (!r) - return 1; - - if (r->interval == 0 || r->burst == 0) - return 1; - - burst = burst_modulate(r->burst, available); - - ts = now(CLOCK_MONOTONIC); - - h = string_hash_func(id, r->hash_key); - g = r->buckets[h % BUCKETS_MAX]; - - LIST_FOREACH(bucket, g, g) - if (streq(g->id, id)) - break; - - if (!g) { - g = journal_rate_limit_group_new(r, id, ts); - if (!g) - return -ENOMEM; - } - - p = &g->pools[priority_map[priority]]; - - if (p->begin <= 0) { - p->suppressed = 0; - p->num = 1; - p->begin = ts; - return 1; - } - - if (p->begin + r->interval < ts) { - unsigned s; - - s = p->suppressed; - p->suppressed = 0; - p->num = 1; - p->begin = ts; - - return 1 + s; - } - - if (p->num <= burst) { - p->num++; - return 1; - } - - p->suppressed++; - return 0; -} diff --git a/src/journal/journald-rate-limit.h b/src/journal/journald-rate-limit.h deleted file mode 100644 index 466239d3c6..0000000000 --- a/src/journal/journald-rate-limit.h +++ /dev/null @@ -1,30 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "util.h" - -typedef struct JournalRateLimit JournalRateLimit; - -JournalRateLimit *journal_rate_limit_new(usec_t interval, unsigned burst); -void journal_rate_limit_free(JournalRateLimit *r); -int journal_rate_limit_test(JournalRateLimit *r, const char *id, int priority, uint64_t available); diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c deleted file mode 100644 index 2488884634..0000000000 --- a/src/journal/journald-server.c +++ /dev/null @@ -1,1694 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <sys/signalfd.h> -#include <sys/ioctl.h> -#include <linux/sockios.h> -#include <sys/statvfs.h> -#include <sys/mman.h> - -#include <libudev.h> - -#include "sd-journal.h" -#include "sd-messages.h" -#include "sd-daemon.h" -#include "mkdir.h" -#include "hashmap.h" -#include "journal-file.h" -#include "socket-util.h" -#include "cgroup-util.h" -#include "missing.h" -#include "conf-parser.h" -#include "selinux-util.h" -#include "journal-internal.h" -#include "journal-vacuum.h" -#include "journal-authenticate.h" -#include "journald-rate-limit.h" -#include "journald-kmsg.h" -#include "journald-syslog.h" -#include "journald-stream.h" -#include "journald-native.h" -#include "journald-audit.h" -#include "journald-server.h" -#include "acl-util.h" - -#ifdef HAVE_SELINUX -#include <selinux/selinux.h> -#endif - -#define USER_JOURNALS_MAX 1024 - -#define DEFAULT_SYNC_INTERVAL_USEC (5*USEC_PER_MINUTE) -#define DEFAULT_RATE_LIMIT_INTERVAL (30*USEC_PER_SEC) -#define DEFAULT_RATE_LIMIT_BURST 1000 -#define DEFAULT_MAX_FILE_USEC USEC_PER_MONTH - -#define RECHECK_AVAILABLE_SPACE_USEC (30*USEC_PER_SEC) - -static const char* const storage_table[_STORAGE_MAX] = { - [STORAGE_AUTO] = "auto", - [STORAGE_VOLATILE] = "volatile", - [STORAGE_PERSISTENT] = "persistent", - [STORAGE_NONE] = "none" -}; - -DEFINE_STRING_TABLE_LOOKUP(storage, Storage); -DEFINE_CONFIG_PARSE_ENUM(config_parse_storage, storage, Storage, "Failed to parse storage setting"); - -static const char* const split_mode_table[_SPLIT_MAX] = { - [SPLIT_LOGIN] = "login", - [SPLIT_UID] = "uid", - [SPLIT_NONE] = "none", -}; - -DEFINE_STRING_TABLE_LOOKUP(split_mode, SplitMode); -DEFINE_CONFIG_PARSE_ENUM(config_parse_split_mode, split_mode, SplitMode, "Failed to parse split mode setting"); - -static uint64_t available_space(Server *s, bool verbose) { - char ids[33]; - _cleanup_free_ char *p = NULL; - sd_id128_t machine; - struct statvfs ss; - uint64_t sum = 0, ss_avail = 0, avail = 0; - int r; - _cleanup_closedir_ DIR *d = NULL; - usec_t ts; - const char *f; - JournalMetrics *m; - - ts = now(CLOCK_MONOTONIC); - - if (s->cached_available_space_timestamp + RECHECK_AVAILABLE_SPACE_USEC > ts - && !verbose) - return s->cached_available_space; - - r = sd_id128_get_machine(&machine); - if (r < 0) - return 0; - - if (s->system_journal) { - f = "/var/log/journal/"; - m = &s->system_metrics; - } else { - f = "/run/log/journal/"; - m = &s->runtime_metrics; - } - - assert(m); - - p = strappend(f, sd_id128_to_string(machine, ids)); - if (!p) - return 0; - - d = opendir(p); - if (!d) - return 0; - - if (fstatvfs(dirfd(d), &ss) < 0) - return 0; - - for (;;) { - struct stat st; - struct dirent *de; - - errno = 0; - de = readdir(d); - if (!de && errno != 0) - return 0; - - if (!de) - break; - - if (!endswith(de->d_name, ".journal") && - !endswith(de->d_name, ".journal~")) - continue; - - if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) - continue; - - if (!S_ISREG(st.st_mode)) - continue; - - sum += (uint64_t) st.st_blocks * 512UL; - } - - ss_avail = ss.f_bsize * ss.f_bavail; - - /* If we reached a high mark, we will always allow this much - * again, unless usage goes above max_use. This watermark - * value is cached so that we don't give up space on pressure, - * but hover below the maximum usage. */ - - if (m->use < sum) - m->use = sum; - - avail = LESS_BY(ss_avail, m->keep_free); - - s->cached_available_space = LESS_BY(MIN(m->max_use, avail), sum); - s->cached_available_space_timestamp = ts; - - if (verbose) { - char fb1[FORMAT_BYTES_MAX], fb2[FORMAT_BYTES_MAX], fb3[FORMAT_BYTES_MAX], - fb4[FORMAT_BYTES_MAX], fb5[FORMAT_BYTES_MAX]; - - server_driver_message(s, SD_MESSAGE_JOURNAL_USAGE, - "%s journal is using %s (max allowed %s, " - "trying to leave %s free of %s available → current limit %s).", - s->system_journal ? "Permanent" : "Runtime", - format_bytes(fb1, sizeof(fb1), sum), - format_bytes(fb2, sizeof(fb2), m->max_use), - format_bytes(fb3, sizeof(fb3), m->keep_free), - format_bytes(fb4, sizeof(fb4), ss_avail), - format_bytes(fb5, sizeof(fb5), s->cached_available_space + sum)); - } - - return s->cached_available_space; -} - -void server_fix_perms(Server *s, JournalFile *f, uid_t uid) { - int r; -#ifdef HAVE_ACL - acl_t acl; - acl_entry_t entry; - acl_permset_t permset; -#endif - - assert(f); - - r = fchmod(f->fd, 0640); - if (r < 0) - log_warning_errno(r, "Failed to fix access mode on %s, ignoring: %m", f->path); - -#ifdef HAVE_ACL - if (uid <= SYSTEM_UID_MAX) - return; - - acl = acl_get_fd(f->fd); - if (!acl) { - log_warning_errno(errno, "Failed to read ACL on %s, ignoring: %m", f->path); - return; - } - - r = acl_find_uid(acl, uid, &entry); - if (r <= 0) { - - if (acl_create_entry(&acl, &entry) < 0 || - acl_set_tag_type(entry, ACL_USER) < 0 || - acl_set_qualifier(entry, &uid) < 0) { - log_warning_errno(errno, "Failed to patch ACL on %s, ignoring: %m", f->path); - goto finish; - } - } - - /* We do not recalculate the mask unconditionally here, - * so that the fchmod() mask above stays intact. */ - if (acl_get_permset(entry, &permset) < 0 || - acl_add_perm(permset, ACL_READ) < 0 || - calc_acl_mask_if_needed(&acl) < 0) { - log_warning_errno(errno, "Failed to patch ACL on %s, ignoring: %m", f->path); - goto finish; - } - - if (acl_set_fd(f->fd, acl) < 0) - log_warning_errno(errno, "Failed to set ACL on %s, ignoring: %m", f->path); - -finish: - acl_free(acl); -#endif -} - -static JournalFile* find_journal(Server *s, uid_t uid) { - _cleanup_free_ char *p = NULL; - int r; - JournalFile *f; - sd_id128_t machine; - - assert(s); - - /* We split up user logs only on /var, not on /run. If the - * runtime file is open, we write to it exclusively, in order - * to guarantee proper order as soon as we flush /run to - * /var and close the runtime file. */ - - if (s->runtime_journal) - return s->runtime_journal; - - if (uid <= SYSTEM_UID_MAX) - return s->system_journal; - - r = sd_id128_get_machine(&machine); - if (r < 0) - return s->system_journal; - - f = ordered_hashmap_get(s->user_journals, UINT32_TO_PTR(uid)); - if (f) - return f; - - if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/user-"UID_FMT".journal", - SD_ID128_FORMAT_VAL(machine), uid) < 0) - return s->system_journal; - - while (ordered_hashmap_size(s->user_journals) >= USER_JOURNALS_MAX) { - /* Too many open? Then let's close one */ - f = ordered_hashmap_steal_first(s->user_journals); - assert(f); - journal_file_close(f); - } - - r = journal_file_open_reliably(p, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &f); - if (r < 0) - return s->system_journal; - - server_fix_perms(s, f, uid); - - r = ordered_hashmap_put(s->user_journals, UINT32_TO_PTR(uid), f); - if (r < 0) { - journal_file_close(f); - return s->system_journal; - } - - return f; -} - -static int do_rotate( - Server *s, - JournalFile **f, - const char* name, - bool seal, - uint32_t uid) { - - int r; - assert(s); - - if (!*f) - return -EINVAL; - - r = journal_file_rotate(f, s->compress, seal); - if (r < 0) - if (*f) - log_error_errno(r, "Failed to rotate %s: %m", (*f)->path); - else - log_error_errno(r, "Failed to create new %s journal: %m", name); - else - server_fix_perms(s, *f, uid); - - return r; -} - -void server_rotate(Server *s) { - JournalFile *f; - void *k; - Iterator i; - int r; - - log_debug("Rotating..."); - - do_rotate(s, &s->runtime_journal, "runtime", false, 0); - do_rotate(s, &s->system_journal, "system", s->seal, 0); - - ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) { - r = do_rotate(s, &f, "user", s->seal, PTR_TO_UINT32(k)); - if (r >= 0) - ordered_hashmap_replace(s->user_journals, k, f); - else if (!f) - /* Old file has been closed and deallocated */ - ordered_hashmap_remove(s->user_journals, k); - } -} - -void server_sync(Server *s) { - JournalFile *f; - void *k; - Iterator i; - int r; - - if (s->system_journal) { - r = journal_file_set_offline(s->system_journal); - if (r < 0) - log_error_errno(r, "Failed to sync system journal: %m"); - } - - ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) { - r = journal_file_set_offline(f); - if (r < 0) - log_error_errno(r, "Failed to sync user journal: %m"); - } - - if (s->sync_event_source) { - r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_OFF); - if (r < 0) - log_error_errno(r, "Failed to disable sync timer source: %m"); - } - - s->sync_scheduled = false; -} - -static void do_vacuum( - Server *s, - const char *id, - JournalFile *f, - const char* path, - JournalMetrics *metrics) { - - const char *p; - int r; - - if (!f) - return; - - p = strjoina(path, id); - r = journal_directory_vacuum(p, metrics->max_use, s->max_retention_usec, &s->oldest_file_usec, false); - if (r < 0 && r != -ENOENT) - log_error_errno(r, "Failed to vacuum %s: %m", p); -} - -void server_vacuum(Server *s) { - char ids[33]; - sd_id128_t machine; - int r; - - log_debug("Vacuuming..."); - - s->oldest_file_usec = 0; - - r = sd_id128_get_machine(&machine); - if (r < 0) { - log_error_errno(r, "Failed to get machine ID: %m"); - return; - } - sd_id128_to_string(machine, ids); - - do_vacuum(s, ids, s->system_journal, "/var/log/journal/", &s->system_metrics); - do_vacuum(s, ids, s->runtime_journal, "/run/log/journal/", &s->runtime_metrics); - - s->cached_available_space_timestamp = 0; -} - -static void server_cache_machine_id(Server *s) { - sd_id128_t id; - int r; - - assert(s); - - r = sd_id128_get_machine(&id); - if (r < 0) - return; - - sd_id128_to_string(id, stpcpy(s->machine_id_field, "_MACHINE_ID=")); -} - -static void server_cache_boot_id(Server *s) { - sd_id128_t id; - int r; - - assert(s); - - r = sd_id128_get_boot(&id); - if (r < 0) - return; - - sd_id128_to_string(id, stpcpy(s->boot_id_field, "_BOOT_ID=")); -} - -static void server_cache_hostname(Server *s) { - _cleanup_free_ char *t = NULL; - char *x; - - assert(s); - - t = gethostname_malloc(); - if (!t) - return; - - x = strappend("_HOSTNAME=", t); - if (!x) - return; - - free(s->hostname_field); - s->hostname_field = x; -} - -static bool shall_try_append_again(JournalFile *f, int r) { - - /* -E2BIG Hit configured limit - -EFBIG Hit fs limit - -EDQUOT Quota limit hit - -ENOSPC Disk full - -EIO I/O error of some kind (mmap) - -EHOSTDOWN Other machine - -EBUSY Unclean shutdown - -EPROTONOSUPPORT Unsupported feature - -EBADMSG Corrupted - -ENODATA Truncated - -ESHUTDOWN Already archived - -EIDRM Journal file has been deleted */ - - if (r == -E2BIG || r == -EFBIG || r == -EDQUOT || r == -ENOSPC) - log_debug("%s: Allocation limit reached, rotating.", f->path); - else if (r == -EHOSTDOWN) - log_info("%s: Journal file from other machine, rotating.", f->path); - else if (r == -EBUSY) - log_info("%s: Unclean shutdown, rotating.", f->path); - else if (r == -EPROTONOSUPPORT) - log_info("%s: Unsupported feature, rotating.", f->path); - else if (r == -EBADMSG || r == -ENODATA || r == ESHUTDOWN) - log_warning("%s: Journal file corrupted, rotating.", f->path); - else if (r == -EIO) - log_warning("%s: IO error, rotating.", f->path); - else if (r == -EIDRM) - log_warning("%s: Journal file has been deleted, rotating.", f->path); - else - return false; - - return true; -} - -static void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n, int priority) { - JournalFile *f; - bool vacuumed = false; - int r; - - assert(s); - assert(iovec); - assert(n > 0); - - f = find_journal(s, uid); - if (!f) - return; - - if (journal_file_rotate_suggested(f, s->max_file_usec)) { - log_debug("%s: Journal header limits reached or header out-of-date, rotating.", f->path); - server_rotate(s); - server_vacuum(s); - vacuumed = true; - - f = find_journal(s, uid); - if (!f) - return; - } - - r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL); - if (r >= 0) { - server_schedule_sync(s, priority); - return; - } - - if (vacuumed || !shall_try_append_again(f, r)) { - log_error_errno(r, "Failed to write entry (%d items, %zu bytes), ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n)); - return; - } - - server_rotate(s); - server_vacuum(s); - - f = find_journal(s, uid); - if (!f) - return; - - log_debug("Retrying write."); - r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL); - if (r < 0) - log_error_errno(r, "Failed to write entry (%d items, %zu bytes) despite vacuuming, ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n)); - else - server_schedule_sync(s, priority); -} - -static void dispatch_message_real( - Server *s, - struct iovec *iovec, unsigned n, unsigned m, - const struct ucred *ucred, - const struct timeval *tv, - const char *label, size_t label_len, - const char *unit_id, - int priority, - pid_t object_pid) { - - char pid[sizeof("_PID=") + DECIMAL_STR_MAX(pid_t)], - uid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)], - gid[sizeof("_GID=") + DECIMAL_STR_MAX(gid_t)], - owner_uid[sizeof("_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)], - source_time[sizeof("_SOURCE_REALTIME_TIMESTAMP=") + DECIMAL_STR_MAX(usec_t)], - o_uid[sizeof("OBJECT_UID=") + DECIMAL_STR_MAX(uid_t)], - o_gid[sizeof("OBJECT_GID=") + DECIMAL_STR_MAX(gid_t)], - o_owner_uid[sizeof("OBJECT_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)]; - uid_t object_uid; - gid_t object_gid; - char *x; - int r; - char *t, *c; - uid_t realuid = 0, owner = 0, journal_uid; - bool owner_valid = false; -#ifdef HAVE_AUDIT - char audit_session[sizeof("_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)], - audit_loginuid[sizeof("_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)], - o_audit_session[sizeof("OBJECT_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)], - o_audit_loginuid[sizeof("OBJECT_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)]; - - uint32_t audit; - uid_t loginuid; -#endif - - assert(s); - assert(iovec); - assert(n > 0); - assert(n + N_IOVEC_META_FIELDS + (object_pid ? N_IOVEC_OBJECT_FIELDS : 0) <= m); - - if (ucred) { - realuid = ucred->uid; - - sprintf(pid, "_PID="PID_FMT, ucred->pid); - IOVEC_SET_STRING(iovec[n++], pid); - - sprintf(uid, "_UID="UID_FMT, ucred->uid); - IOVEC_SET_STRING(iovec[n++], uid); - - sprintf(gid, "_GID="GID_FMT, ucred->gid); - IOVEC_SET_STRING(iovec[n++], gid); - - r = get_process_comm(ucred->pid, &t); - if (r >= 0) { - x = strjoina("_COMM=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - - r = get_process_exe(ucred->pid, &t); - if (r >= 0) { - x = strjoina("_EXE=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - - r = get_process_cmdline(ucred->pid, 0, false, &t); - if (r >= 0) { - x = strjoina("_CMDLINE=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - - r = get_process_capeff(ucred->pid, &t); - if (r >= 0) { - x = strjoina("_CAP_EFFECTIVE=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - -#ifdef HAVE_AUDIT - r = audit_session_from_pid(ucred->pid, &audit); - if (r >= 0) { - sprintf(audit_session, "_AUDIT_SESSION=%"PRIu32, audit); - IOVEC_SET_STRING(iovec[n++], audit_session); - } - - r = audit_loginuid_from_pid(ucred->pid, &loginuid); - if (r >= 0) { - sprintf(audit_loginuid, "_AUDIT_LOGINUID="UID_FMT, loginuid); - IOVEC_SET_STRING(iovec[n++], audit_loginuid); - } -#endif - - r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &c); - if (r >= 0) { - char *session = NULL; - - x = strjoina("_SYSTEMD_CGROUP=", c); - IOVEC_SET_STRING(iovec[n++], x); - - r = cg_path_get_session(c, &t); - if (r >= 0) { - session = strjoina("_SYSTEMD_SESSION=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], session); - } - - if (cg_path_get_owner_uid(c, &owner) >= 0) { - owner_valid = true; - - sprintf(owner_uid, "_SYSTEMD_OWNER_UID="UID_FMT, owner); - IOVEC_SET_STRING(iovec[n++], owner_uid); - } - - if (cg_path_get_unit(c, &t) >= 0) { - x = strjoina("_SYSTEMD_UNIT=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } else if (unit_id && !session) { - x = strjoina("_SYSTEMD_UNIT=", unit_id); - IOVEC_SET_STRING(iovec[n++], x); - } - - if (cg_path_get_user_unit(c, &t) >= 0) { - x = strjoina("_SYSTEMD_USER_UNIT=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } else if (unit_id && session) { - x = strjoina("_SYSTEMD_USER_UNIT=", unit_id); - IOVEC_SET_STRING(iovec[n++], x); - } - - if (cg_path_get_slice(c, &t) >= 0) { - x = strjoina("_SYSTEMD_SLICE=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - - free(c); - } else if (unit_id) { - x = strjoina("_SYSTEMD_UNIT=", unit_id); - IOVEC_SET_STRING(iovec[n++], x); - } - -#ifdef HAVE_SELINUX - if (mac_selinux_use()) { - if (label) { - x = alloca(strlen("_SELINUX_CONTEXT=") + label_len + 1); - - *((char*) mempcpy(stpcpy(x, "_SELINUX_CONTEXT="), label, label_len)) = 0; - IOVEC_SET_STRING(iovec[n++], x); - } else { - security_context_t con; - - if (getpidcon(ucred->pid, &con) >= 0) { - x = strjoina("_SELINUX_CONTEXT=", con); - - freecon(con); - IOVEC_SET_STRING(iovec[n++], x); - } - } - } -#endif - } - assert(n <= m); - - if (object_pid) { - r = get_process_uid(object_pid, &object_uid); - if (r >= 0) { - sprintf(o_uid, "OBJECT_UID="UID_FMT, object_uid); - IOVEC_SET_STRING(iovec[n++], o_uid); - } - - r = get_process_gid(object_pid, &object_gid); - if (r >= 0) { - sprintf(o_gid, "OBJECT_GID="GID_FMT, object_gid); - IOVEC_SET_STRING(iovec[n++], o_gid); - } - - r = get_process_comm(object_pid, &t); - if (r >= 0) { - x = strjoina("OBJECT_COMM=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - - r = get_process_exe(object_pid, &t); - if (r >= 0) { - x = strjoina("OBJECT_EXE=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - - r = get_process_cmdline(object_pid, 0, false, &t); - if (r >= 0) { - x = strjoina("OBJECT_CMDLINE=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - -#ifdef HAVE_AUDIT - r = audit_session_from_pid(object_pid, &audit); - if (r >= 0) { - sprintf(o_audit_session, "OBJECT_AUDIT_SESSION=%"PRIu32, audit); - IOVEC_SET_STRING(iovec[n++], o_audit_session); - } - - r = audit_loginuid_from_pid(object_pid, &loginuid); - if (r >= 0) { - sprintf(o_audit_loginuid, "OBJECT_AUDIT_LOGINUID="UID_FMT, loginuid); - IOVEC_SET_STRING(iovec[n++], o_audit_loginuid); - } -#endif - - r = cg_pid_get_path_shifted(object_pid, s->cgroup_root, &c); - if (r >= 0) { - x = strjoina("OBJECT_SYSTEMD_CGROUP=", c); - IOVEC_SET_STRING(iovec[n++], x); - - r = cg_path_get_session(c, &t); - if (r >= 0) { - x = strjoina("OBJECT_SYSTEMD_SESSION=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - - if (cg_path_get_owner_uid(c, &owner) >= 0) { - sprintf(o_owner_uid, "OBJECT_SYSTEMD_OWNER_UID="UID_FMT, owner); - IOVEC_SET_STRING(iovec[n++], o_owner_uid); - } - - if (cg_path_get_unit(c, &t) >= 0) { - x = strjoina("OBJECT_SYSTEMD_UNIT=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - - if (cg_path_get_user_unit(c, &t) >= 0) { - x = strjoina("OBJECT_SYSTEMD_USER_UNIT=", t); - free(t); - IOVEC_SET_STRING(iovec[n++], x); - } - - free(c); - } - } - assert(n <= m); - - if (tv) { - sprintf(source_time, "_SOURCE_REALTIME_TIMESTAMP=%llu", (unsigned long long) timeval_load(tv)); - IOVEC_SET_STRING(iovec[n++], source_time); - } - - /* Note that strictly speaking storing the boot id here is - * redundant since the entry includes this in-line - * anyway. However, we need this indexed, too. */ - if (!isempty(s->boot_id_field)) - IOVEC_SET_STRING(iovec[n++], s->boot_id_field); - - if (!isempty(s->machine_id_field)) - IOVEC_SET_STRING(iovec[n++], s->machine_id_field); - - if (!isempty(s->hostname_field)) - IOVEC_SET_STRING(iovec[n++], s->hostname_field); - - assert(n <= m); - - if (s->split_mode == SPLIT_UID && realuid > 0) - /* Split up strictly by any UID */ - journal_uid = realuid; - else if (s->split_mode == SPLIT_LOGIN && realuid > 0 && owner_valid && owner > 0) - /* Split up by login UIDs. We do this only if the - * realuid is not root, in order not to accidentally - * leak privileged information to the user that is - * logged by a privileged process that is part of an - * unprivileged session. */ - journal_uid = owner; - else - journal_uid = 0; - - write_to_journal(s, journal_uid, iovec, n, priority); -} - -void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) { - char mid[11 + 32 + 1]; - char buffer[16 + LINE_MAX + 1]; - struct iovec iovec[N_IOVEC_META_FIELDS + 4]; - int n = 0; - va_list ap; - struct ucred ucred = {}; - - assert(s); - assert(format); - - IOVEC_SET_STRING(iovec[n++], "PRIORITY=6"); - IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver"); - - memcpy(buffer, "MESSAGE=", 8); - va_start(ap, format); - vsnprintf(buffer + 8, sizeof(buffer) - 8, format, ap); - va_end(ap); - IOVEC_SET_STRING(iovec[n++], buffer); - - if (!sd_id128_equal(message_id, SD_ID128_NULL)) { - snprintf(mid, sizeof(mid), LOG_MESSAGE_ID(message_id)); - IOVEC_SET_STRING(iovec[n++], mid); - } - - ucred.pid = getpid(); - ucred.uid = getuid(); - ucred.gid = getgid(); - - dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0); -} - -void server_dispatch_message( - Server *s, - struct iovec *iovec, unsigned n, unsigned m, - const struct ucred *ucred, - const struct timeval *tv, - const char *label, size_t label_len, - const char *unit_id, - int priority, - pid_t object_pid) { - - int rl, r; - _cleanup_free_ char *path = NULL; - char *c; - - assert(s); - assert(iovec || n == 0); - - if (n == 0) - return; - - if (LOG_PRI(priority) > s->max_level_store) - return; - - /* Stop early in case the information will not be stored - * in a journal. */ - if (s->storage == STORAGE_NONE) - return; - - if (!ucred) - goto finish; - - r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &path); - if (r < 0) - goto finish; - - /* example: /user/lennart/3/foobar - * /system/dbus.service/foobar - * - * So let's cut of everything past the third /, since that is - * where user directories start */ - - c = strchr(path, '/'); - if (c) { - c = strchr(c+1, '/'); - if (c) { - c = strchr(c+1, '/'); - if (c) - *c = 0; - } - } - - rl = journal_rate_limit_test(s->rate_limit, path, - priority & LOG_PRIMASK, available_space(s, false)); - - if (rl == 0) - return; - - /* Write a suppression message if we suppressed something */ - if (rl > 1) - server_driver_message(s, SD_MESSAGE_JOURNAL_DROPPED, - "Suppressed %u messages from %s", rl - 1, path); - -finish: - dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, priority, object_pid); -} - - -static int system_journal_open(Server *s, bool flush_requested) { - int r; - char *fn; - sd_id128_t machine; - char ids[33]; - - r = sd_id128_get_machine(&machine); - if (r < 0) - return log_error_errno(r, "Failed to get machine id: %m"); - - sd_id128_to_string(machine, ids); - - if (!s->system_journal && - (s->storage == STORAGE_PERSISTENT || s->storage == STORAGE_AUTO) && - (flush_requested - || access("/run/systemd/journal/flushed", F_OK) >= 0)) { - - /* If in auto mode: first try to create the machine - * path, but not the prefix. - * - * If in persistent mode: create /var/log/journal and - * the machine path */ - - if (s->storage == STORAGE_PERSISTENT) - (void) mkdir("/var/log/journal/", 0755); - - fn = strjoina("/var/log/journal/", ids); - (void) mkdir(fn, 0755); - - fn = strjoina(fn, "/system.journal"); - r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &s->system_journal); - - if (r >= 0) - server_fix_perms(s, s->system_journal, 0); - else if (r < 0) { - if (r != -ENOENT && r != -EROFS) - log_warning_errno(r, "Failed to open system journal: %m"); - - r = 0; - } - } - - if (!s->runtime_journal && - (s->storage != STORAGE_NONE)) { - - fn = strjoin("/run/log/journal/", ids, "/system.journal", NULL); - if (!fn) - return -ENOMEM; - - if (s->system_journal) { - - /* Try to open the runtime journal, but only - * if it already exists, so that we can flush - * it into the system journal */ - - r = journal_file_open(fn, O_RDWR, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal); - free(fn); - - if (r < 0) { - if (r != -ENOENT) - log_warning_errno(r, "Failed to open runtime journal: %m"); - - r = 0; - } - - } else { - - /* OK, we really need the runtime journal, so create - * it if necessary. */ - - (void) mkdir("/run/log", 0755); - (void) mkdir("/run/log/journal", 0755); - (void) mkdir_parents(fn, 0750); - - r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal); - free(fn); - - if (r < 0) - return log_error_errno(r, "Failed to open runtime journal: %m"); - } - - if (s->runtime_journal) - server_fix_perms(s, s->runtime_journal, 0); - } - - available_space(s, true); - - return r; -} - -int server_flush_to_var(Server *s) { - sd_id128_t machine; - sd_journal *j = NULL; - char ts[FORMAT_TIMESPAN_MAX]; - usec_t start; - unsigned n = 0; - int r; - - assert(s); - - if (s->storage != STORAGE_AUTO && - s->storage != STORAGE_PERSISTENT) - return 0; - - if (!s->runtime_journal) - return 0; - - system_journal_open(s, true); - - if (!s->system_journal) - return 0; - - log_debug("Flushing to /var..."); - - start = now(CLOCK_MONOTONIC); - - r = sd_id128_get_machine(&machine); - if (r < 0) - return r; - - r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY); - if (r < 0) - return log_error_errno(r, "Failed to read runtime journal: %m"); - - sd_journal_set_data_threshold(j, 0); - - SD_JOURNAL_FOREACH(j) { - Object *o = NULL; - JournalFile *f; - - f = j->current_file; - assert(f && f->current_offset > 0); - - n++; - - r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); - if (r < 0) { - log_error_errno(r, "Can't read entry: %m"); - goto finish; - } - - r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL); - if (r >= 0) - continue; - - if (!shall_try_append_again(s->system_journal, r)) { - log_error_errno(r, "Can't write entry: %m"); - goto finish; - } - - server_rotate(s); - server_vacuum(s); - - if (!s->system_journal) { - log_notice("Didn't flush runtime journal since rotation of system journal wasn't successful."); - r = -EIO; - goto finish; - } - - log_debug("Retrying write."); - r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL); - if (r < 0) { - log_error_errno(r, "Can't write entry: %m"); - goto finish; - } - } - -finish: - journal_file_post_change(s->system_journal); - - journal_file_close(s->runtime_journal); - s->runtime_journal = NULL; - - if (r >= 0) - rm_rf("/run/log/journal", false, true, false); - - sd_journal_close(j); - - server_driver_message(s, SD_ID128_NULL, "Time spent on flushing to /var is %s for %u entries.", format_timespan(ts, sizeof(ts), now(CLOCK_MONOTONIC) - start, 0), n); - - return r; -} - -int server_process_datagram(sd_event_source *es, int fd, uint32_t revents, void *userdata) { - Server *s = userdata; - - assert(s); - assert(fd == s->native_fd || fd == s->syslog_fd || fd == s->audit_fd); - - if (revents != EPOLLIN) { - log_error("Got invalid event from epoll for datagram fd: %"PRIx32, revents); - return -EIO; - } - - for (;;) { - struct ucred *ucred = NULL; - struct timeval *tv = NULL; - struct cmsghdr *cmsg; - char *label = NULL; - size_t label_len = 0; - struct iovec iovec; - - union { - struct cmsghdr cmsghdr; - - /* We use NAME_MAX space for the SELinux label - * here. The kernel currently enforces no - * limit, but according to suggestions from - * the SELinux people this will change and it - * will probably be identical to NAME_MAX. For - * now we use that, but this should be updated - * one day when the final limit is known. */ - uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + - CMSG_SPACE(sizeof(struct timeval)) + - CMSG_SPACE(sizeof(int)) + /* fd */ - CMSG_SPACE(NAME_MAX)]; /* selinux label */ - } control = {}; - union sockaddr_union sa = {}; - struct msghdr msghdr = { - .msg_iov = &iovec, - .msg_iovlen = 1, - .msg_control = &control, - .msg_controllen = sizeof(control), - .msg_name = &sa, - .msg_namelen = sizeof(sa), - }; - - ssize_t n; - int *fds = NULL; - unsigned n_fds = 0; - int v = 0; - size_t m; - - /* Try to get the right size, if we can. (Not all - * sockets support SIOCINQ, hence we just try, but - * don't rely on it. */ - (void) ioctl(fd, SIOCINQ, &v); - - /* Fix it up, if it is too small. We use the same fixed value as auditd here. Awful! */ - m = PAGE_ALIGN(MAX3((size_t) v + 1, - (size_t) LINE_MAX, - ALIGN(sizeof(struct nlmsghdr)) + ALIGN((size_t) MAX_AUDIT_MESSAGE_LENGTH)) + 1); - - if (!GREEDY_REALLOC(s->buffer, s->buffer_size, m)) - return log_oom(); - - iovec.iov_base = s->buffer; - iovec.iov_len = s->buffer_size - 1; /* Leave room for trailing NUL we add later */ - - n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); - if (n < 0) { - if (errno == EINTR || errno == EAGAIN) - return 0; - - log_error_errno(errno, "recvmsg() failed: %m"); - return -errno; - } - - for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg; cmsg = CMSG_NXTHDR(&msghdr, cmsg)) { - - if (cmsg->cmsg_level == SOL_SOCKET && - cmsg->cmsg_type == SCM_CREDENTIALS && - cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) - ucred = (struct ucred*) CMSG_DATA(cmsg); - else if (cmsg->cmsg_level == SOL_SOCKET && - cmsg->cmsg_type == SCM_SECURITY) { - label = (char*) CMSG_DATA(cmsg); - label_len = cmsg->cmsg_len - CMSG_LEN(0); - } else if (cmsg->cmsg_level == SOL_SOCKET && - cmsg->cmsg_type == SO_TIMESTAMP && - cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval))) - tv = (struct timeval*) CMSG_DATA(cmsg); - else if (cmsg->cmsg_level == SOL_SOCKET && - cmsg->cmsg_type == SCM_RIGHTS) { - fds = (int*) CMSG_DATA(cmsg); - n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); - } - } - - /* And a trailing NUL, just in case */ - s->buffer[n] = 0; - - if (fd == s->syslog_fd) { - if (n > 0 && n_fds == 0) - server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len); - else if (n_fds > 0) - log_warning("Got file descriptors via syslog socket. Ignoring."); - - } else if (fd == s->native_fd) { - if (n > 0 && n_fds == 0) - server_process_native_message(s, s->buffer, n, ucred, tv, label, label_len); - else if (n == 0 && n_fds == 1) - server_process_native_file(s, fds[0], ucred, tv, label, label_len); - else if (n_fds > 0) - log_warning("Got too many file descriptors via native socket. Ignoring."); - - } else { - assert(fd == s->audit_fd); - - if (n > 0 && n_fds == 0) - server_process_audit_message(s, s->buffer, n, ucred, &sa, msghdr.msg_namelen); - else if (n_fds > 0) - log_warning("Got file descriptors via audit socket. Ignoring."); - } - - close_many(fds, n_fds); - } -} - -static int dispatch_sigusr1(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { - Server *s = userdata; - - assert(s); - - log_info("Received request to flush runtime journal from PID %"PRIu32, si->ssi_pid); - - server_flush_to_var(s); - server_sync(s); - server_vacuum(s); - - touch("/run/systemd/journal/flushed"); - - return 0; -} - -static int dispatch_sigusr2(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { - Server *s = userdata; - - assert(s); - - log_info("Received request to rotate journal from PID %"PRIu32, si->ssi_pid); - server_rotate(s); - server_vacuum(s); - - return 0; -} - -static int dispatch_sigterm(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { - Server *s = userdata; - - assert(s); - - log_received_signal(LOG_INFO, si); - - sd_event_exit(s->event, 0); - return 0; -} - -static int setup_signals(Server *s) { - sigset_t mask; - int r; - - assert(s); - - assert_se(sigemptyset(&mask) == 0); - sigset_add_many(&mask, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, -1); - assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); - - r = sd_event_add_signal(s->event, &s->sigusr1_event_source, SIGUSR1, dispatch_sigusr1, s); - if (r < 0) - return r; - - r = sd_event_add_signal(s->event, &s->sigusr2_event_source, SIGUSR2, dispatch_sigusr2, s); - if (r < 0) - return r; - - r = sd_event_add_signal(s->event, &s->sigterm_event_source, SIGTERM, dispatch_sigterm, s); - if (r < 0) - return r; - - r = sd_event_add_signal(s->event, &s->sigint_event_source, SIGINT, dispatch_sigterm, s); - if (r < 0) - return r; - - return 0; -} - -static int server_parse_proc_cmdline(Server *s) { - _cleanup_free_ char *line = NULL; - const char *w, *state; - size_t l; - int r; - - r = proc_cmdline(&line); - if (r < 0) { - log_warning_errno(r, "Failed to read /proc/cmdline, ignoring: %m"); - return 0; - } - - FOREACH_WORD_QUOTED(w, l, line, state) { - _cleanup_free_ char *word; - - word = strndup(w, l); - if (!word) - return -ENOMEM; - - if (startswith(word, "systemd.journald.forward_to_syslog=")) { - r = parse_boolean(word + 35); - if (r < 0) - log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35); - else - s->forward_to_syslog = r; - } else if (startswith(word, "systemd.journald.forward_to_kmsg=")) { - r = parse_boolean(word + 33); - if (r < 0) - log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33); - else - s->forward_to_kmsg = r; - } else if (startswith(word, "systemd.journald.forward_to_console=")) { - r = parse_boolean(word + 36); - if (r < 0) - log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36); - else - s->forward_to_console = r; - } else if (startswith(word, "systemd.journald.forward_to_wall=")) { - r = parse_boolean(word + 33); - if (r < 0) - log_warning("Failed to parse forward to wall switch %s. Ignoring.", word + 33); - else - s->forward_to_wall = r; - } else if (startswith(word, "systemd.journald")) - log_warning("Invalid systemd.journald parameter. Ignoring."); - } - /* do not warn about state here, since probably systemd already did */ - - return 0; -} - -static int server_parse_config_file(Server *s) { - assert(s); - - return config_parse_many("/etc/systemd/journald.conf", - CONF_DIRS_NULSTR("systemd/journald.conf"), - "Journal\0", - config_item_perf_lookup, journald_gperf_lookup, - false, s); -} - -static int server_dispatch_sync(sd_event_source *es, usec_t t, void *userdata) { - Server *s = userdata; - - assert(s); - - server_sync(s); - return 0; -} - -int server_schedule_sync(Server *s, int priority) { - int r; - - assert(s); - - if (priority <= LOG_CRIT) { - /* Immediately sync to disk when this is of priority CRIT, ALERT, EMERG */ - server_sync(s); - return 0; - } - - if (s->sync_scheduled) - return 0; - - if (s->sync_interval_usec > 0) { - usec_t when; - - r = sd_event_now(s->event, CLOCK_MONOTONIC, &when); - if (r < 0) - return r; - - when += s->sync_interval_usec; - - if (!s->sync_event_source) { - r = sd_event_add_time( - s->event, - &s->sync_event_source, - CLOCK_MONOTONIC, - when, 0, - server_dispatch_sync, s); - if (r < 0) - return r; - - r = sd_event_source_set_priority(s->sync_event_source, SD_EVENT_PRIORITY_IMPORTANT); - } else { - r = sd_event_source_set_time(s->sync_event_source, when); - if (r < 0) - return r; - - r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_ONESHOT); - } - if (r < 0) - return r; - - s->sync_scheduled = true; - } - - return 0; -} - -static int dispatch_hostname_change(sd_event_source *es, int fd, uint32_t revents, void *userdata) { - Server *s = userdata; - - assert(s); - - server_cache_hostname(s); - return 0; -} - -static int server_open_hostname(Server *s) { - int r; - - assert(s); - - s->hostname_fd = open("/proc/sys/kernel/hostname", O_RDONLY|O_CLOEXEC|O_NDELAY|O_NOCTTY); - if (s->hostname_fd < 0) - return log_error_errno(errno, "Failed to open /proc/sys/kernel/hostname: %m"); - - r = sd_event_add_io(s->event, &s->hostname_event_source, s->hostname_fd, 0, dispatch_hostname_change, s); - if (r < 0) { - /* kernels prior to 3.2 don't support polling this file. Ignore - * the failure. */ - if (r == -EPERM) { - log_warning("Failed to register hostname fd in event loop: %s. Ignoring.", - strerror(-r)); - s->hostname_fd = safe_close(s->hostname_fd); - return 0; - } - - return log_error_errno(r, "Failed to register hostname fd in event loop: %m"); - } - - r = sd_event_source_set_priority(s->hostname_event_source, SD_EVENT_PRIORITY_IMPORTANT-10); - if (r < 0) - return log_error_errno(r, "Failed to adjust priority of host name event source: %m"); - - return 0; -} - -int server_init(Server *s) { - _cleanup_fdset_free_ FDSet *fds = NULL; - int n, r, fd; - - assert(s); - - zero(*s); - s->syslog_fd = s->native_fd = s->stdout_fd = s->dev_kmsg_fd = s->audit_fd = s->hostname_fd = -1; - s->compress = true; - s->seal = true; - - s->sync_interval_usec = DEFAULT_SYNC_INTERVAL_USEC; - s->sync_scheduled = false; - - s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL; - s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST; - - s->forward_to_wall = true; - - s->max_file_usec = DEFAULT_MAX_FILE_USEC; - - s->max_level_store = LOG_DEBUG; - s->max_level_syslog = LOG_DEBUG; - s->max_level_kmsg = LOG_NOTICE; - s->max_level_console = LOG_INFO; - s->max_level_wall = LOG_EMERG; - - memset(&s->system_metrics, 0xFF, sizeof(s->system_metrics)); - memset(&s->runtime_metrics, 0xFF, sizeof(s->runtime_metrics)); - - server_parse_config_file(s); - server_parse_proc_cmdline(s); - if (!!s->rate_limit_interval ^ !!s->rate_limit_burst) { - log_debug("Setting both rate limit interval and burst from "USEC_FMT",%u to 0,0", - s->rate_limit_interval, s->rate_limit_burst); - s->rate_limit_interval = s->rate_limit_burst = 0; - } - - mkdir_p("/run/systemd/journal", 0755); - - s->user_journals = ordered_hashmap_new(NULL); - if (!s->user_journals) - return log_oom(); - - s->mmap = mmap_cache_new(); - if (!s->mmap) - return log_oom(); - - r = sd_event_default(&s->event); - if (r < 0) - return log_error_errno(r, "Failed to create event loop: %m"); - - sd_event_set_watchdog(s->event, true); - - n = sd_listen_fds(true); - if (n < 0) - return log_error_errno(n, "Failed to read listening file descriptors from environment: %m"); - - for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) { - - if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/socket", 0) > 0) { - - if (s->native_fd >= 0) { - log_error("Too many native sockets passed."); - return -EINVAL; - } - - s->native_fd = fd; - - } else if (sd_is_socket_unix(fd, SOCK_STREAM, 1, "/run/systemd/journal/stdout", 0) > 0) { - - if (s->stdout_fd >= 0) { - log_error("Too many stdout sockets passed."); - return -EINVAL; - } - - s->stdout_fd = fd; - - } else if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/dev/log", 0) > 0 || - sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/dev-log", 0) > 0) { - - if (s->syslog_fd >= 0) { - log_error("Too many /dev/log sockets passed."); - return -EINVAL; - } - - s->syslog_fd = fd; - - } else if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) { - - if (s->audit_fd >= 0) { - log_error("Too many audit sockets passed."); - return -EINVAL; - } - - s->audit_fd = fd; - - } else { - - if (!fds) { - fds = fdset_new(); - if (!fds) - return log_oom(); - } - - r = fdset_put(fds, fd); - if (r < 0) - return log_oom(); - } - } - - r = server_open_stdout_socket(s, fds); - if (r < 0) - return r; - - if (fdset_size(fds) > 0) { - log_warning("%u unknown file descriptors passed, closing.", fdset_size(fds)); - fds = fdset_free(fds); - } - - r = server_open_syslog_socket(s); - if (r < 0) - return r; - - r = server_open_native_socket(s); - if (r < 0) - return r; - - r = server_open_dev_kmsg(s); - if (r < 0) - return r; - - r = server_open_audit(s); - if (r < 0) - return r; - - r = server_open_kernel_seqnum(s); - if (r < 0) - return r; - - r = server_open_hostname(s); - if (r < 0) - return r; - - r = setup_signals(s); - if (r < 0) - return r; - - s->udev = udev_new(); - if (!s->udev) - return -ENOMEM; - - s->rate_limit = journal_rate_limit_new(s->rate_limit_interval, s->rate_limit_burst); - if (!s->rate_limit) - return -ENOMEM; - - r = cg_get_root_path(&s->cgroup_root); - if (r < 0) - return r; - - server_cache_hostname(s); - server_cache_boot_id(s); - server_cache_machine_id(s); - - r = system_journal_open(s, false); - if (r < 0) - return r; - - return 0; -} - -void server_maybe_append_tags(Server *s) { -#ifdef HAVE_GCRYPT - JournalFile *f; - Iterator i; - usec_t n; - - n = now(CLOCK_REALTIME); - - if (s->system_journal) - journal_file_maybe_append_tag(s->system_journal, n); - - ORDERED_HASHMAP_FOREACH(f, s->user_journals, i) - journal_file_maybe_append_tag(f, n); -#endif -} - -void server_done(Server *s) { - JournalFile *f; - assert(s); - - while (s->stdout_streams) - stdout_stream_free(s->stdout_streams); - - if (s->system_journal) - journal_file_close(s->system_journal); - - if (s->runtime_journal) - journal_file_close(s->runtime_journal); - - while ((f = ordered_hashmap_steal_first(s->user_journals))) - journal_file_close(f); - - ordered_hashmap_free(s->user_journals); - - sd_event_source_unref(s->syslog_event_source); - sd_event_source_unref(s->native_event_source); - sd_event_source_unref(s->stdout_event_source); - sd_event_source_unref(s->dev_kmsg_event_source); - sd_event_source_unref(s->audit_event_source); - sd_event_source_unref(s->sync_event_source); - sd_event_source_unref(s->sigusr1_event_source); - sd_event_source_unref(s->sigusr2_event_source); - sd_event_source_unref(s->sigterm_event_source); - sd_event_source_unref(s->sigint_event_source); - sd_event_source_unref(s->hostname_event_source); - sd_event_unref(s->event); - - safe_close(s->syslog_fd); - safe_close(s->native_fd); - safe_close(s->stdout_fd); - safe_close(s->dev_kmsg_fd); - safe_close(s->audit_fd); - safe_close(s->hostname_fd); - - if (s->rate_limit) - journal_rate_limit_free(s->rate_limit); - - if (s->kernel_seqnum) - munmap(s->kernel_seqnum, sizeof(uint64_t)); - - free(s->buffer); - free(s->tty_path); - free(s->cgroup_root); - free(s->hostname_field); - - if (s->mmap) - mmap_cache_unref(s->mmap); - - if (s->udev) - udev_unref(s->udev); -} diff --git a/src/journal/journald-server.h b/src/journal/journald-server.h deleted file mode 100644 index 559d100131..0000000000 --- a/src/journal/journald-server.h +++ /dev/null @@ -1,174 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdbool.h> -#include <sys/types.h> - -#include "sd-event.h" -#include "journal-file.h" -#include "hashmap.h" -#include "audit.h" -#include "journald-rate-limit.h" -#include "list.h" - -typedef enum Storage { - STORAGE_AUTO, - STORAGE_VOLATILE, - STORAGE_PERSISTENT, - STORAGE_NONE, - _STORAGE_MAX, - _STORAGE_INVALID = -1 -} Storage; - -typedef enum SplitMode { - SPLIT_UID, - SPLIT_LOGIN, - SPLIT_NONE, - _SPLIT_MAX, - _SPLIT_INVALID = -1 -} SplitMode; - -typedef struct StdoutStream StdoutStream; - -typedef struct Server { - int syslog_fd; - int native_fd; - int stdout_fd; - int dev_kmsg_fd; - int audit_fd; - int hostname_fd; - - sd_event *event; - - sd_event_source *syslog_event_source; - sd_event_source *native_event_source; - sd_event_source *stdout_event_source; - sd_event_source *dev_kmsg_event_source; - sd_event_source *audit_event_source; - sd_event_source *sync_event_source; - sd_event_source *sigusr1_event_source; - sd_event_source *sigusr2_event_source; - sd_event_source *sigterm_event_source; - sd_event_source *sigint_event_source; - sd_event_source *hostname_event_source; - - JournalFile *runtime_journal; - JournalFile *system_journal; - OrderedHashmap *user_journals; - - uint64_t seqnum; - - char *buffer; - size_t buffer_size; - - JournalRateLimit *rate_limit; - usec_t sync_interval_usec; - usec_t rate_limit_interval; - unsigned rate_limit_burst; - - JournalMetrics runtime_metrics; - JournalMetrics system_metrics; - - bool compress; - bool seal; - - bool forward_to_kmsg; - bool forward_to_syslog; - bool forward_to_console; - bool forward_to_wall; - - unsigned n_forward_syslog_missed; - usec_t last_warn_forward_syslog_missed; - - uint64_t cached_available_space; - usec_t cached_available_space_timestamp; - - uint64_t var_available_timestamp; - - usec_t max_retention_usec; - usec_t max_file_usec; - usec_t oldest_file_usec; - - LIST_HEAD(StdoutStream, stdout_streams); - unsigned n_stdout_streams; - - char *tty_path; - - int max_level_store; - int max_level_syslog; - int max_level_kmsg; - int max_level_console; - int max_level_wall; - - Storage storage; - SplitMode split_mode; - - MMapCache *mmap; - - bool dev_kmsg_readable; - - uint64_t *kernel_seqnum; - - struct udev *udev; - - bool sync_scheduled; - - char machine_id_field[sizeof("_MACHINE_ID=") + 32]; - char boot_id_field[sizeof("_BOOT_ID=") + 32]; - char *hostname_field; - - /* Cached cgroup root, so that we don't have to query that all the time */ - char *cgroup_root; -} Server; - -#define N_IOVEC_META_FIELDS 20 -#define N_IOVEC_KERNEL_FIELDS 64 -#define N_IOVEC_UDEV_FIELDS 32 -#define N_IOVEC_OBJECT_FIELDS 11 - -void server_dispatch_message(Server *s, struct iovec *iovec, unsigned n, unsigned m, const struct ucred *ucred, const struct timeval *tv, const char *label, size_t label_len, const char *unit_id, int priority, pid_t object_pid); -void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) _printf_(3,4); - -/* gperf lookup function */ -const struct ConfigPerfItem* journald_gperf_lookup(const char *key, unsigned length); - -int config_parse_storage(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); - -const char *storage_to_string(Storage s) _const_; -Storage storage_from_string(const char *s) _pure_; - -int config_parse_split_mode(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); - -const char *split_mode_to_string(SplitMode s) _const_; -SplitMode split_mode_from_string(const char *s) _pure_; - -void server_fix_perms(Server *s, JournalFile *f, uid_t uid); -int server_init(Server *s); -void server_done(Server *s); -void server_sync(Server *s); -void server_vacuum(Server *s); -void server_rotate(Server *s); -int server_schedule_sync(Server *s, int priority); -int server_flush_to_var(Server *s); -void server_maybe_append_tags(Server *s); -int server_process_datagram(sd_event_source *es, int fd, uint32_t revents, void *userdata); diff --git a/src/journal/journald-stream.c b/src/journal/journald-stream.c deleted file mode 100644 index bc5b26d118..0000000000 --- a/src/journal/journald-stream.c +++ /dev/null @@ -1,742 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> -#include <stddef.h> - -#ifdef HAVE_SELINUX -#include <selinux/selinux.h> -#endif - -#include "sd-event.h" -#include "sd-daemon.h" -#include "socket-util.h" -#include "selinux-util.h" -#include "mkdir.h" -#include "fileio.h" -#include "journald-server.h" -#include "journald-stream.h" -#include "journald-syslog.h" -#include "journald-kmsg.h" -#include "journald-console.h" -#include "journald-wall.h" - -#define STDOUT_STREAMS_MAX 4096 - -typedef enum StdoutStreamState { - STDOUT_STREAM_IDENTIFIER, - STDOUT_STREAM_UNIT_ID, - STDOUT_STREAM_PRIORITY, - STDOUT_STREAM_LEVEL_PREFIX, - STDOUT_STREAM_FORWARD_TO_SYSLOG, - STDOUT_STREAM_FORWARD_TO_KMSG, - STDOUT_STREAM_FORWARD_TO_CONSOLE, - STDOUT_STREAM_RUNNING -} StdoutStreamState; - -struct StdoutStream { - Server *server; - StdoutStreamState state; - - int fd; - - struct ucred ucred; -#ifdef HAVE_SELINUX - security_context_t security_context; -#endif - - char *identifier; - char *unit_id; - int priority; - bool level_prefix:1; - bool forward_to_syslog:1; - bool forward_to_kmsg:1; - bool forward_to_console:1; - - bool fdstore:1; - - char buffer[LINE_MAX+1]; - size_t length; - - sd_event_source *event_source; - - char *state_file; - - LIST_FIELDS(StdoutStream, stdout_stream); -}; - -void stdout_stream_free(StdoutStream *s) { - if (!s) - return; - - if (s->server) { - assert(s->server->n_stdout_streams > 0); - s->server->n_stdout_streams --; - LIST_REMOVE(stdout_stream, s->server->stdout_streams, s); - } - - if (s->event_source) { - sd_event_source_set_enabled(s->event_source, SD_EVENT_OFF); - s->event_source = sd_event_source_unref(s->event_source); - } - - safe_close(s->fd); - -#ifdef HAVE_SELINUX - if (s->security_context) - freecon(s->security_context); -#endif - - free(s->identifier); - free(s->unit_id); - free(s->state_file); - - free(s); -} - -DEFINE_TRIVIAL_CLEANUP_FUNC(StdoutStream*, stdout_stream_free); - -static void stdout_stream_destroy(StdoutStream *s) { - if (!s) - return; - - if (s->state_file) - unlink(s->state_file); - - stdout_stream_free(s); -} - -static int stdout_stream_save(StdoutStream *s) { - _cleanup_free_ char *temp_path = NULL; - _cleanup_fclose_ FILE *f = NULL; - int r; - - assert(s); - - if (s->state != STDOUT_STREAM_RUNNING) - return 0; - - if (!s->state_file) { - struct stat st; - - r = fstat(s->fd, &st); - if (r < 0) - return log_warning_errno(errno, "Failed to stat connected stream: %m"); - - /* We use device and inode numbers as identifier for the stream */ - if (asprintf(&s->state_file, "/run/systemd/journal/streams/%lu:%lu", (unsigned long) st.st_dev, (unsigned long) st.st_ino) < 0) - return log_oom(); - } - - mkdir_p("/run/systemd/journal/streams", 0755); - - r = fopen_temporary(s->state_file, &f, &temp_path); - if (r < 0) - goto finish; - - fprintf(f, - "# This is private data. Do not parse\n" - "PRIORITY=%i\n" - "LEVEL_PREFIX=%i\n" - "FORWARD_TO_SYSLOG=%i\n" - "FORWARD_TO_KMSG=%i\n" - "FORWARD_TO_CONSOLE=%i\n", - s->priority, - s->level_prefix, - s->forward_to_syslog, - s->forward_to_kmsg, - s->forward_to_console); - - if (!isempty(s->identifier)) { - _cleanup_free_ char *escaped; - - escaped = cescape(s->identifier); - if (!escaped) { - r = -ENOMEM; - goto finish; - } - - fprintf(f, "IDENTIFIER=%s\n", escaped); - } - - if (!isempty(s->unit_id)) { - _cleanup_free_ char *escaped; - - escaped = cescape(s->unit_id); - if (!escaped) { - r = -ENOMEM; - goto finish; - } - - fprintf(f, "UNIT=%s\n", escaped); - } - - r = fflush_and_check(f); - if (r < 0) - goto finish; - - if (rename(temp_path, s->state_file) < 0) { - r = -errno; - goto finish; - } - - free(temp_path); - temp_path = NULL; - - /* Store the connection fd in PID 1, so that we get it passed - * in again on next start */ - if (!s->fdstore) { - sd_pid_notify_with_fds(0, false, "FDSTORE=1", &s->fd, 1); - s->fdstore = true; - } - -finish: - if (temp_path) - unlink(temp_path); - - if (r < 0) - log_error_errno(r, "Failed to save stream data %s: %m", s->state_file); - - return r; -} - -static int stdout_stream_log(StdoutStream *s, const char *p) { - struct iovec iovec[N_IOVEC_META_FIELDS + 5]; - int priority; - char syslog_priority[] = "PRIORITY=\0"; - char syslog_facility[sizeof("SYSLOG_FACILITY=")-1 + DECIMAL_STR_MAX(int) + 1]; - _cleanup_free_ char *message = NULL, *syslog_identifier = NULL; - unsigned n = 0; - char *label = NULL; - size_t label_len = 0; - - assert(s); - assert(p); - - if (isempty(p)) - return 0; - - priority = s->priority; - - if (s->level_prefix) - syslog_parse_priority(&p, &priority, false); - - if (s->forward_to_syslog || s->server->forward_to_syslog) - server_forward_syslog(s->server, syslog_fixup_facility(priority), s->identifier, p, &s->ucred, NULL); - - if (s->forward_to_kmsg || s->server->forward_to_kmsg) - server_forward_kmsg(s->server, priority, s->identifier, p, &s->ucred); - - if (s->forward_to_console || s->server->forward_to_console) - server_forward_console(s->server, priority, s->identifier, p, &s->ucred); - - if (s->server->forward_to_wall) - server_forward_wall(s->server, priority, s->identifier, p, &s->ucred); - - IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=stdout"); - - syslog_priority[strlen("PRIORITY=")] = '0' + LOG_PRI(priority); - IOVEC_SET_STRING(iovec[n++], syslog_priority); - - if (priority & LOG_FACMASK) { - xsprintf(syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)); - IOVEC_SET_STRING(iovec[n++], syslog_facility); - } - - if (s->identifier) { - syslog_identifier = strappend("SYSLOG_IDENTIFIER=", s->identifier); - if (syslog_identifier) - IOVEC_SET_STRING(iovec[n++], syslog_identifier); - } - - message = strappend("MESSAGE=", p); - if (message) - IOVEC_SET_STRING(iovec[n++], message); - -#ifdef HAVE_SELINUX - if (s->security_context) { - label = (char*) s->security_context; - label_len = strlen((char*) s->security_context); - } -#endif - - server_dispatch_message(s->server, iovec, n, ELEMENTSOF(iovec), &s->ucred, NULL, label, label_len, s->unit_id, priority, 0); - return 0; -} - -static int stdout_stream_line(StdoutStream *s, char *p) { - int r; - - assert(s); - assert(p); - - p = strstrip(p); - - switch (s->state) { - - case STDOUT_STREAM_IDENTIFIER: - if (isempty(p)) - s->identifier = NULL; - else { - s->identifier = strdup(p); - if (!s->identifier) - return log_oom(); - } - - s->state = STDOUT_STREAM_UNIT_ID; - return 0; - - case STDOUT_STREAM_UNIT_ID: - if (s->ucred.uid == 0) { - if (isempty(p)) - s->unit_id = NULL; - else { - s->unit_id = strdup(p); - if (!s->unit_id) - return log_oom(); - } - } - - s->state = STDOUT_STREAM_PRIORITY; - return 0; - - case STDOUT_STREAM_PRIORITY: - r = safe_atoi(p, &s->priority); - if (r < 0 || s->priority < 0 || s->priority > 999) { - log_warning("Failed to parse log priority line."); - return -EINVAL; - } - - s->state = STDOUT_STREAM_LEVEL_PREFIX; - return 0; - - case STDOUT_STREAM_LEVEL_PREFIX: - r = parse_boolean(p); - if (r < 0) { - log_warning("Failed to parse level prefix line."); - return -EINVAL; - } - - s->level_prefix = !!r; - s->state = STDOUT_STREAM_FORWARD_TO_SYSLOG; - return 0; - - case STDOUT_STREAM_FORWARD_TO_SYSLOG: - r = parse_boolean(p); - if (r < 0) { - log_warning("Failed to parse forward to syslog line."); - return -EINVAL; - } - - s->forward_to_syslog = !!r; - s->state = STDOUT_STREAM_FORWARD_TO_KMSG; - return 0; - - case STDOUT_STREAM_FORWARD_TO_KMSG: - r = parse_boolean(p); - if (r < 0) { - log_warning("Failed to parse copy to kmsg line."); - return -EINVAL; - } - - s->forward_to_kmsg = !!r; - s->state = STDOUT_STREAM_FORWARD_TO_CONSOLE; - return 0; - - case STDOUT_STREAM_FORWARD_TO_CONSOLE: - r = parse_boolean(p); - if (r < 0) { - log_warning("Failed to parse copy to console line."); - return -EINVAL; - } - - s->forward_to_console = !!r; - s->state = STDOUT_STREAM_RUNNING; - - /* Try to save the stream, so that journald can be restarted and we can recover */ - (void) stdout_stream_save(s); - return 0; - - case STDOUT_STREAM_RUNNING: - return stdout_stream_log(s, p); - } - - assert_not_reached("Unknown stream state"); -} - -static int stdout_stream_scan(StdoutStream *s, bool force_flush) { - char *p; - size_t remaining; - int r; - - assert(s); - - p = s->buffer; - remaining = s->length; - for (;;) { - char *end; - size_t skip; - - end = memchr(p, '\n', remaining); - if (end) - skip = end - p + 1; - else if (remaining >= sizeof(s->buffer) - 1) { - end = p + sizeof(s->buffer) - 1; - skip = remaining; - } else - break; - - *end = 0; - - r = stdout_stream_line(s, p); - if (r < 0) - return r; - - remaining -= skip; - p += skip; - } - - if (force_flush && remaining > 0) { - p[remaining] = 0; - r = stdout_stream_line(s, p); - if (r < 0) - return r; - - p += remaining; - remaining = 0; - } - - if (p > s->buffer) { - memmove(s->buffer, p, remaining); - s->length = remaining; - } - - return 0; -} - -static int stdout_stream_process(sd_event_source *es, int fd, uint32_t revents, void *userdata) { - StdoutStream *s = userdata; - ssize_t l; - int r; - - assert(s); - - if ((revents|EPOLLIN|EPOLLHUP) != (EPOLLIN|EPOLLHUP)) { - log_error("Got invalid event from epoll for stdout stream: %"PRIx32, revents); - goto terminate; - } - - l = read(s->fd, s->buffer+s->length, sizeof(s->buffer)-1-s->length); - if (l < 0) { - - if (errno == EAGAIN) - return 0; - - log_warning_errno(errno, "Failed to read from stream: %m"); - goto terminate; - } - - if (l == 0) { - stdout_stream_scan(s, true); - goto terminate; - } - - s->length += l; - r = stdout_stream_scan(s, false); - if (r < 0) - goto terminate; - - return 1; - -terminate: - stdout_stream_destroy(s); - return 0; -} - -static int stdout_stream_install(Server *s, int fd, StdoutStream **ret) { - _cleanup_(stdout_stream_freep) StdoutStream *stream = NULL; - int r; - - assert(s); - assert(fd >= 0); - - stream = new0(StdoutStream, 1); - if (!stream) - return log_oom(); - - stream->fd = -1; - stream->priority = LOG_INFO; - - r = getpeercred(fd, &stream->ucred); - if (r < 0) - return log_error_errno(r, "Failed to determine peer credentials: %m"); - -#ifdef HAVE_SELINUX - if (mac_selinux_use()) { - if (getpeercon(fd, &stream->security_context) < 0 && errno != ENOPROTOOPT) - log_error_errno(errno, "Failed to determine peer security context: %m"); - } -#endif - - (void) shutdown(fd, SHUT_WR); - - r = sd_event_add_io(s->event, &stream->event_source, fd, EPOLLIN, stdout_stream_process, stream); - if (r < 0) - return log_error_errno(r, "Failed to add stream to event loop: %m"); - - r = sd_event_source_set_priority(stream->event_source, SD_EVENT_PRIORITY_NORMAL+5); - if (r < 0) - return log_error_errno(r, "Failed to adjust stdout event source priority: %m"); - - stream->fd = fd; - - stream->server = s; - LIST_PREPEND(stdout_stream, s->stdout_streams, stream); - s->n_stdout_streams ++; - - if (ret) - *ret = stream; - - stream = NULL; - - return 0; -} - -static int stdout_stream_new(sd_event_source *es, int listen_fd, uint32_t revents, void *userdata) { - _cleanup_close_ int fd = -1; - Server *s = userdata; - int r; - - assert(s); - - if (revents != EPOLLIN) { - log_error("Got invalid event from epoll for stdout server fd: %"PRIx32, revents); - return -EIO; - } - - fd = accept4(s->stdout_fd, NULL, NULL, SOCK_NONBLOCK|SOCK_CLOEXEC); - if (fd < 0) { - if (errno == EAGAIN) - return 0; - - log_error_errno(errno, "Failed to accept stdout connection: %m"); - return -errno; - } - - if (s->n_stdout_streams >= STDOUT_STREAMS_MAX) { - log_warning("Too many stdout streams, refusing connection."); - return 0; - } - - r = stdout_stream_install(s, fd, NULL); - if (r < 0) - return r; - - fd = -1; - return 0; -} - -static int stdout_stream_load(StdoutStream *stream, const char *fname) { - _cleanup_free_ char - *priority = NULL, - *level_prefix = NULL, - *forward_to_syslog = NULL, - *forward_to_kmsg = NULL, - *forward_to_console = NULL; - int r; - - assert(stream); - assert(fname); - - if (!stream->state_file) { - stream->state_file = strappend("/run/systemd/journal/streams/", fname); - if (!stream->state_file) - return log_oom(); - } - - r = parse_env_file(stream->state_file, NEWLINE, - "PRIORITY", &priority, - "LEVEL_PREFIX", &level_prefix, - "FORWARD_TO_SYSLOG", &forward_to_syslog, - "FORWARD_TO_KMSG", &forward_to_kmsg, - "FORWARD_TO_CONSOLE", &forward_to_console, - "IDENTIFIER", &stream->identifier, - "UNIT", &stream->unit_id, - NULL); - if (r < 0) - return log_error_errno(r, "Failed to read: %s", stream->state_file); - - if (priority) { - int p; - - p = log_level_from_string(priority); - if (p >= 0) - stream->priority = p; - } - - if (level_prefix) { - r = parse_boolean(level_prefix); - if (r >= 0) - stream->level_prefix = r; - } - - if (forward_to_syslog) { - r = parse_boolean(forward_to_syslog); - if (r >= 0) - stream->forward_to_syslog = r; - } - - if (forward_to_kmsg) { - r = parse_boolean(forward_to_kmsg); - if (r >= 0) - stream->forward_to_kmsg = r; - } - - if (forward_to_console) { - r = parse_boolean(forward_to_console); - if (r >= 0) - stream->forward_to_console = r; - } - - return 0; -} - -static int stdout_stream_restore(Server *s, const char *fname, int fd) { - StdoutStream *stream; - int r; - - assert(s); - assert(fname); - assert(fd >= 0); - - if (s->n_stdout_streams >= STDOUT_STREAMS_MAX) { - log_warning("Too many stdout streams, refusing restoring of stream."); - return -ENOBUFS; - } - - r = stdout_stream_install(s, fd, &stream); - if (r < 0) - return r; - - stream->state = STDOUT_STREAM_RUNNING; - stream->fdstore = true; - - /* Ignore all parsing errors */ - (void) stdout_stream_load(stream, fname); - - return 0; -} - -static int server_restore_streams(Server *s, FDSet *fds) { - _cleanup_closedir_ DIR *d = NULL; - struct dirent *de; - int r; - - d = opendir("/run/systemd/journal/streams"); - if (!d) { - if (errno == ENOENT) - return 0; - - return log_warning_errno(errno, "Failed to enumerate /run/systemd/journal/streams: %m"); - } - - FOREACH_DIRENT(de, d, goto fail) { - unsigned long st_dev, st_ino; - bool found = false; - Iterator i; - int fd; - - if (sscanf(de->d_name, "%lu:%lu", &st_dev, &st_ino) != 2) - continue; - - FDSET_FOREACH(fd, fds, i) { - struct stat st; - - if (fstat(fd, &st) < 0) - return log_error_errno(errno, "Failed to stat %s: %m", de->d_name); - - if (S_ISSOCK(st.st_mode) && st.st_dev == st_dev && st.st_ino == st_ino) { - found = true; - break; - } - } - - if (!found) { - /* No file descriptor? Then let's delete the state file */ - log_debug("Cannot restore stream file %s", de->d_name); - unlinkat(dirfd(d), de->d_name, 0); - continue; - } - - fdset_remove(fds, fd); - - r = stdout_stream_restore(s, de->d_name, fd); - if (r < 0) - safe_close(fd); - } - - return 0; - -fail: - return log_error_errno(errno, "Failed to read streams directory: %m"); -} - -int server_open_stdout_socket(Server *s, FDSet *fds) { - int r; - - assert(s); - - if (s->stdout_fd < 0) { - union sockaddr_union sa = { - .un.sun_family = AF_UNIX, - .un.sun_path = "/run/systemd/journal/stdout", - }; - - s->stdout_fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); - if (s->stdout_fd < 0) - return log_error_errno(errno, "socket() failed: %m"); - - unlink(sa.un.sun_path); - - r = bind(s->stdout_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)); - if (r < 0) - return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); - - chmod(sa.un.sun_path, 0666); - - if (listen(s->stdout_fd, SOMAXCONN) < 0) - return log_error_errno(errno, "listen(%s) failed: %m", sa.un.sun_path); - } else - fd_nonblock(s->stdout_fd, 1); - - r = sd_event_add_io(s->event, &s->stdout_event_source, s->stdout_fd, EPOLLIN, stdout_stream_new, s); - if (r < 0) - return log_error_errno(r, "Failed to add stdout server fd to event source: %m"); - - r = sd_event_source_set_priority(s->stdout_event_source, SD_EVENT_PRIORITY_NORMAL+10); - if (r < 0) - return log_error_errno(r, "Failed to adjust priority of stdout server event source: %m"); - - /* Try to restore streams, but don't bother if this fails */ - (void) server_restore_streams(s, fds); - - return 0; -} diff --git a/src/journal/journald-stream.h b/src/journal/journald-stream.h deleted file mode 100644 index 94bf955d78..0000000000 --- a/src/journal/journald-stream.h +++ /dev/null @@ -1,29 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "fdset.h" -#include "journald-server.h" - -int server_open_stdout_socket(Server *s, FDSet *fds); - -void stdout_stream_free(StdoutStream *s); diff --git a/src/journal/journald-syslog.c b/src/journal/journald-syslog.c deleted file mode 100644 index 7d545ca31d..0000000000 --- a/src/journal/journald-syslog.c +++ /dev/null @@ -1,441 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> -#include <stddef.h> -#include <sys/epoll.h> - -#include "systemd/sd-messages.h" -#include "socket-util.h" -#include "selinux-util.h" -#include "journald-server.h" -#include "journald-syslog.h" -#include "journald-kmsg.h" -#include "journald-console.h" -#include "journald-wall.h" - -/* Warn once every 30s if we missed syslog message */ -#define WARN_FORWARD_SYSLOG_MISSED_USEC (30 * USEC_PER_SEC) - -static void forward_syslog_iovec(Server *s, const struct iovec *iovec, unsigned n_iovec, const struct ucred *ucred, const struct timeval *tv) { - - static const union sockaddr_union sa = { - .un.sun_family = AF_UNIX, - .un.sun_path = "/run/systemd/journal/syslog", - }; - struct msghdr msghdr = { - .msg_iov = (struct iovec *) iovec, - .msg_iovlen = n_iovec, - .msg_name = (struct sockaddr*) &sa.sa, - .msg_namelen = offsetof(union sockaddr_union, un.sun_path) - + strlen("/run/systemd/journal/syslog"), - }; - struct cmsghdr *cmsg; - union { - struct cmsghdr cmsghdr; - uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; - } control; - - assert(s); - assert(iovec); - assert(n_iovec > 0); - - if (ucred) { - zero(control); - msghdr.msg_control = &control; - msghdr.msg_controllen = sizeof(control); - - cmsg = CMSG_FIRSTHDR(&msghdr); - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_CREDENTIALS; - cmsg->cmsg_len = CMSG_LEN(sizeof(struct ucred)); - memcpy(CMSG_DATA(cmsg), ucred, sizeof(struct ucred)); - msghdr.msg_controllen = cmsg->cmsg_len; - } - - /* Forward the syslog message we received via /dev/log to - * /run/systemd/syslog. Unfortunately we currently can't set - * the SO_TIMESTAMP auxiliary data, and hence we don't. */ - - if (sendmsg(s->syslog_fd, &msghdr, MSG_NOSIGNAL) >= 0) - return; - - /* The socket is full? I guess the syslog implementation is - * too slow, and we shouldn't wait for that... */ - if (errno == EAGAIN) { - s->n_forward_syslog_missed++; - return; - } - - if (ucred && (errno == ESRCH || errno == EPERM)) { - struct ucred u; - - /* Hmm, presumably the sender process vanished - * by now, or we don't have CAP_SYS_AMDIN, so - * let's fix it as good as we can, and retry */ - - u = *ucred; - u.pid = getpid(); - memcpy(CMSG_DATA(cmsg), &u, sizeof(struct ucred)); - - if (sendmsg(s->syslog_fd, &msghdr, MSG_NOSIGNAL) >= 0) - return; - - if (errno == EAGAIN) { - s->n_forward_syslog_missed++; - return; - } - } - - if (errno != ENOENT) - log_debug_errno(errno, "Failed to forward syslog message: %m"); -} - -static void forward_syslog_raw(Server *s, int priority, const char *buffer, const struct ucred *ucred, const struct timeval *tv) { - struct iovec iovec; - - assert(s); - assert(buffer); - - if (LOG_PRI(priority) > s->max_level_syslog) - return; - - IOVEC_SET_STRING(iovec, buffer); - forward_syslog_iovec(s, &iovec, 1, ucred, tv); -} - -void server_forward_syslog(Server *s, int priority, const char *identifier, const char *message, const struct ucred *ucred, const struct timeval *tv) { - struct iovec iovec[5]; - char header_priority[DECIMAL_STR_MAX(priority) + 3], header_time[64], - header_pid[sizeof("[]: ")-1 + DECIMAL_STR_MAX(pid_t) + 1]; - int n = 0; - time_t t; - struct tm *tm; - char *ident_buf = NULL; - - assert(s); - assert(priority >= 0); - assert(priority <= 999); - assert(message); - - if (LOG_PRI(priority) > s->max_level_syslog) - return; - - /* First: priority field */ - xsprintf(header_priority, "<%i>", priority); - IOVEC_SET_STRING(iovec[n++], header_priority); - - /* Second: timestamp */ - t = tv ? tv->tv_sec : ((time_t) (now(CLOCK_REALTIME) / USEC_PER_SEC)); - tm = localtime(&t); - if (!tm) - return; - if (strftime(header_time, sizeof(header_time), "%h %e %T ", tm) <= 0) - return; - IOVEC_SET_STRING(iovec[n++], header_time); - - /* Third: identifier and PID */ - if (ucred) { - if (!identifier) { - get_process_comm(ucred->pid, &ident_buf); - identifier = ident_buf; - } - - xsprintf(header_pid, "["PID_FMT"]: ", ucred->pid); - - if (identifier) - IOVEC_SET_STRING(iovec[n++], identifier); - - IOVEC_SET_STRING(iovec[n++], header_pid); - } else if (identifier) { - IOVEC_SET_STRING(iovec[n++], identifier); - IOVEC_SET_STRING(iovec[n++], ": "); - } - - /* Fourth: message */ - IOVEC_SET_STRING(iovec[n++], message); - - forward_syslog_iovec(s, iovec, n, ucred, tv); - - free(ident_buf); -} - -int syslog_fixup_facility(int priority) { - - if ((priority & LOG_FACMASK) == 0) - return (priority & LOG_PRIMASK) | LOG_USER; - - return priority; -} - -size_t syslog_parse_identifier(const char **buf, char **identifier, char **pid) { - const char *p; - char *t; - size_t l, e; - - assert(buf); - assert(identifier); - assert(pid); - - p = *buf; - - p += strspn(p, WHITESPACE); - l = strcspn(p, WHITESPACE); - - if (l <= 0 || - p[l-1] != ':') - return 0; - - e = l; - l--; - - if (p[l-1] == ']') { - size_t k = l-1; - - for (;;) { - - if (p[k] == '[') { - t = strndup(p+k+1, l-k-2); - if (t) - *pid = t; - - l = k; - break; - } - - if (k == 0) - break; - - k--; - } - } - - t = strndup(p, l); - if (t) - *identifier = t; - - e += strspn(p + e, WHITESPACE); - *buf = p + e; - return e; -} - -static void syslog_skip_date(char **buf) { - enum { - LETTER, - SPACE, - NUMBER, - SPACE_OR_NUMBER, - COLON - } sequence[] = { - LETTER, LETTER, LETTER, - SPACE, - SPACE_OR_NUMBER, NUMBER, - SPACE, - SPACE_OR_NUMBER, NUMBER, - COLON, - SPACE_OR_NUMBER, NUMBER, - COLON, - SPACE_OR_NUMBER, NUMBER, - SPACE - }; - - char *p; - unsigned i; - - assert(buf); - assert(*buf); - - p = *buf; - - for (i = 0; i < ELEMENTSOF(sequence); i++, p++) { - - if (!*p) - return; - - switch (sequence[i]) { - - case SPACE: - if (*p != ' ') - return; - break; - - case SPACE_OR_NUMBER: - if (*p == ' ') - break; - - /* fall through */ - - case NUMBER: - if (*p < '0' || *p > '9') - return; - - break; - - case LETTER: - if (!(*p >= 'A' && *p <= 'Z') && - !(*p >= 'a' && *p <= 'z')) - return; - - break; - - case COLON: - if (*p != ':') - return; - break; - - } - } - - *buf = p; -} - -void server_process_syslog_message( - Server *s, - const char *buf, - const struct ucred *ucred, - const struct timeval *tv, - const char *label, - size_t label_len) { - - char syslog_priority[sizeof("PRIORITY=") + DECIMAL_STR_MAX(int)], - syslog_facility[sizeof("SYSLOG_FACILITY") + DECIMAL_STR_MAX(int)]; - const char *message = NULL, *syslog_identifier = NULL, *syslog_pid = NULL; - struct iovec iovec[N_IOVEC_META_FIELDS + 6]; - unsigned n = 0; - int priority = LOG_USER | LOG_INFO; - _cleanup_free_ char *identifier = NULL, *pid = NULL; - const char *orig; - - assert(s); - assert(buf); - - orig = buf; - syslog_parse_priority(&buf, &priority, true); - - if (s->forward_to_syslog) - forward_syslog_raw(s, priority, orig, ucred, tv); - - syslog_skip_date((char**) &buf); - syslog_parse_identifier(&buf, &identifier, &pid); - - if (s->forward_to_kmsg) - server_forward_kmsg(s, priority, identifier, buf, ucred); - - if (s->forward_to_console) - server_forward_console(s, priority, identifier, buf, ucred); - - if (s->forward_to_wall) - server_forward_wall(s, priority, identifier, buf, ucred); - - IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=syslog"); - - sprintf(syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK); - IOVEC_SET_STRING(iovec[n++], syslog_priority); - - if (priority & LOG_FACMASK) { - sprintf(syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)); - IOVEC_SET_STRING(iovec[n++], syslog_facility); - } - - if (identifier) { - syslog_identifier = strjoina("SYSLOG_IDENTIFIER=", identifier); - if (syslog_identifier) - IOVEC_SET_STRING(iovec[n++], syslog_identifier); - } - - if (pid) { - syslog_pid = strjoina("SYSLOG_PID=", pid); - if (syslog_pid) - IOVEC_SET_STRING(iovec[n++], syslog_pid); - } - - message = strjoina("MESSAGE=", buf); - if (message) - IOVEC_SET_STRING(iovec[n++], message); - - server_dispatch_message(s, iovec, n, ELEMENTSOF(iovec), ucred, tv, label, label_len, NULL, priority, 0); -} - -int server_open_syslog_socket(Server *s) { - static const int one = 1; - int r; - - assert(s); - - if (s->syslog_fd < 0) { - static const union sockaddr_union sa = { - .un.sun_family = AF_UNIX, - .un.sun_path = "/run/systemd/journal/dev-log", - }; - - s->syslog_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); - if (s->syslog_fd < 0) - return log_error_errno(errno, "socket() failed: %m"); - - unlink(sa.un.sun_path); - - r = bind(s->syslog_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)); - if (r < 0) - return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); - - chmod(sa.un.sun_path, 0666); - } else - fd_nonblock(s->syslog_fd, 1); - - r = setsockopt(s->syslog_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); - if (r < 0) - return log_error_errno(errno, "SO_PASSCRED failed: %m"); - -#ifdef HAVE_SELINUX - if (mac_selinux_use()) { - r = setsockopt(s->syslog_fd, SOL_SOCKET, SO_PASSSEC, &one, sizeof(one)); - if (r < 0) - log_warning_errno(errno, "SO_PASSSEC failed: %m"); - } -#endif - - r = setsockopt(s->syslog_fd, SOL_SOCKET, SO_TIMESTAMP, &one, sizeof(one)); - if (r < 0) - return log_error_errno(errno, "SO_TIMESTAMP failed: %m"); - - r = sd_event_add_io(s->event, &s->syslog_event_source, s->syslog_fd, EPOLLIN, server_process_datagram, s); - if (r < 0) - return log_error_errno(r, "Failed to add syslog server fd to event loop: %m"); - - return 0; -} - -void server_maybe_warn_forward_syslog_missed(Server *s) { - usec_t n; - assert(s); - - if (s->n_forward_syslog_missed <= 0) - return; - - n = now(CLOCK_MONOTONIC); - if (s->last_warn_forward_syslog_missed + WARN_FORWARD_SYSLOG_MISSED_USEC > n) - return; - - server_driver_message(s, SD_MESSAGE_FORWARD_SYSLOG_MISSED, "Forwarding to syslog missed %u messages.", s->n_forward_syslog_missed); - - s->n_forward_syslog_missed = 0; - s->last_warn_forward_syslog_missed = n; -} diff --git a/src/journal/journald-syslog.h b/src/journal/journald-syslog.h deleted file mode 100644 index 3774ebdf05..0000000000 --- a/src/journal/journald-syslog.h +++ /dev/null @@ -1,35 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "journald-server.h" - -int syslog_fixup_facility(int priority) _const_; - -size_t syslog_parse_identifier(const char **buf, char **identifier, char **pid); - -void server_forward_syslog(Server *s, int priority, const char *identifier, const char *message, const struct ucred *ucred, const struct timeval *tv); - -void server_process_syslog_message(Server *s, const char *buf, const struct ucred *ucred, const struct timeval *tv, const char *label, size_t label_len); -int server_open_syslog_socket(Server *s); - -void server_maybe_warn_forward_syslog_missed(Server *s); diff --git a/src/journal/journald-wall.c b/src/journal/journald-wall.c deleted file mode 100644 index e3201674d4..0000000000 --- a/src/journal/journald-wall.c +++ /dev/null @@ -1,69 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2014 Sebastian Thorarensen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "utmp-wtmp.h" -#include "journald-server.h" -#include "journald-wall.h" - -void server_forward_wall( - Server *s, - int priority, - const char *identifier, - const char *message, - const struct ucred *ucred) { - - _cleanup_free_ char *ident_buf = NULL, *l_buf = NULL; - const char *l; - int r; - - assert(s); - assert(message); - - if (LOG_PRI(priority) > s->max_level_wall) - return; - - if (ucred) { - if (!identifier) { - get_process_comm(ucred->pid, &ident_buf); - identifier = ident_buf; - } - - if (asprintf(&l_buf, "%s["PID_FMT"]: %s", strempty(identifier), ucred->pid, message) < 0) { - log_oom(); - return; - } - - l = l_buf; - - } else if (identifier) { - - l = l_buf = strjoin(identifier, ": ", message, NULL); - if (!l_buf) { - log_oom(); - return; - } - } else - l = message; - - r = utmp_wall(l, "systemd-journald", NULL); - if (r < 0) - log_debug_errno(r, "Failed to send wall message: %m"); -} diff --git a/src/journal/journald-wall.h b/src/journal/journald-wall.h deleted file mode 100644 index 45c52854a0..0000000000 --- a/src/journal/journald-wall.h +++ /dev/null @@ -1,26 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2014 Sebastian Thorarensen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "journald-server.h" - -void server_forward_wall(Server *s, int priority, const char *identifier, const char *message, const struct ucred *ucred); diff --git a/src/journal/journald.c b/src/journal/journald.c deleted file mode 100644 index 28a423326e..0000000000 --- a/src/journal/journald.c +++ /dev/null @@ -1,126 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> - -#include "systemd/sd-messages.h" -#include "systemd/sd-daemon.h" - -#include "journal-authenticate.h" -#include "journald-server.h" -#include "journald-kmsg.h" -#include "journald-syslog.h" - -#include "sigbus.h" - -int main(int argc, char *argv[]) { - Server server; - int r; - - if (argc > 1) { - log_error("This program does not take arguments."); - return EXIT_FAILURE; - } - - log_set_target(LOG_TARGET_SAFE); - log_set_facility(LOG_SYSLOG); - log_parse_environment(); - log_open(); - - umask(0022); - - sigbus_install(); - - r = server_init(&server); - if (r < 0) - goto finish; - - server_vacuum(&server); - server_flush_to_var(&server); - server_flush_dev_kmsg(&server); - - log_debug("systemd-journald running as pid "PID_FMT, getpid()); - server_driver_message(&server, SD_MESSAGE_JOURNAL_START, "Journal started"); - - sd_notify(false, - "READY=1\n" - "STATUS=Processing requests..."); - - for (;;) { - usec_t t = USEC_INFINITY, n; - - r = sd_event_get_state(server.event); - if (r < 0) - goto finish; - if (r == SD_EVENT_FINISHED) - break; - - n = now(CLOCK_REALTIME); - - if (server.max_retention_usec > 0 && server.oldest_file_usec > 0) { - - /* The retention time is reached, so let's vacuum! */ - if (server.oldest_file_usec + server.max_retention_usec < n) { - log_info("Retention time reached."); - server_rotate(&server); - server_vacuum(&server); - continue; - } - - /* Calculate when to rotate the next time */ - t = server.oldest_file_usec + server.max_retention_usec - n; - } - -#ifdef HAVE_GCRYPT - if (server.system_journal) { - usec_t u; - - if (journal_file_next_evolve_usec(server.system_journal, &u)) { - if (n >= u) - t = 0; - else - t = MIN(t, u - n); - } - } -#endif - - r = sd_event_run(server.event, t); - if (r < 0) { - log_error_errno(r, "Failed to run event loop: %m"); - goto finish; - } - - server_maybe_append_tags(&server); - server_maybe_warn_forward_syslog_missed(&server); - } - - log_debug("systemd-journald stopped as pid "PID_FMT, getpid()); - server_driver_message(&server, SD_MESSAGE_JOURNAL_STOP, "Journal stopped"); - -finish: - sd_notify(false, - "STOPPING=1\n" - "STATUS=Shutting down..."); - - server_done(&server); - - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} diff --git a/src/journal/journald.conf b/src/journal/journald.conf deleted file mode 100644 index 47eefe91c1..0000000000 --- a/src/journal/journald.conf +++ /dev/null @@ -1,39 +0,0 @@ -# This file is part of systemd. -# -# systemd is free software; you can redistribute it and/or modify it -# under the terms of the GNU Lesser General Public License as published by -# the Free Software Foundation; either version 2.1 of the License, or -# (at your option) any later version. -# -# Entries in this file show the compile time defaults. -# You can change settings by editing this file. -# Defaults can be restored by simply deleting this file. -# -# See journald.conf(5) for details. - -[Journal] -#Storage=auto -#Compress=yes -#Seal=yes -#SplitMode=uid -#SyncIntervalSec=5m -#RateLimitInterval=30s -#RateLimitBurst=1000 -#SystemMaxUse= -#SystemKeepFree= -#SystemMaxFileSize= -#RuntimeMaxUse= -#RuntimeKeepFree= -#RuntimeMaxFileSize= -#MaxRetentionSec= -#MaxFileSec=1month -#ForwardToSyslog=no -#ForwardToKMsg=no -#ForwardToConsole=no -#ForwardToWall=yes -#TTYPath=/dev/console -#MaxLevelStore=debug -#MaxLevelSyslog=debug -#MaxLevelKMsg=notice -#MaxLevelConsole=info -#MaxLevelWall=emerg diff --git a/src/journal/lookup3.c b/src/journal/lookup3.c deleted file mode 100644 index 52ffdf7b1d..0000000000 --- a/src/journal/lookup3.c +++ /dev/null @@ -1,1009 +0,0 @@ -/* Slightly modified by Lennart Poettering, to avoid name clashes, and - * unexport a few functions. */ - -#include "lookup3.h" - -/* -------------------------------------------------------------------------------- -lookup3.c, by Bob Jenkins, May 2006, Public Domain. - -These are functions for producing 32-bit hashes for hash table lookup. -hashword(), hashlittle(), hashlittle2(), hashbig(), mix(), and final() -are externally useful functions. Routines to test the hash are included -if SELF_TEST is defined. You can use this free for any purpose. It's in -the public domain. It has no warranty. - -You probably want to use hashlittle(). hashlittle() and hashbig() -hash byte arrays. hashlittle() is faster than hashbig() on -little-endian machines. Intel and AMD are little-endian machines. -On second thought, you probably want hashlittle2(), which is identical to -hashlittle() except it returns two 32-bit hashes for the price of one. -You could implement hashbig2() if you wanted but I haven't bothered here. - -If you want to find a hash of, say, exactly 7 integers, do - a = i1; b = i2; c = i3; - mix(a,b,c); - a += i4; b += i5; c += i6; - mix(a,b,c); - a += i7; - final(a,b,c); -then use c as the hash value. If you have a variable length array of -4-byte integers to hash, use hashword(). If you have a byte array (like -a character string), use hashlittle(). If you have several byte arrays, or -a mix of things, see the comments above hashlittle(). - -Why is this so big? I read 12 bytes at a time into 3 4-byte integers, -then mix those integers. This is fast (you can do a lot more thorough -mixing with 12*3 instructions on 3 integers than you can with 3 instructions -on 1 byte), but shoehorning those bytes into integers efficiently is messy. -------------------------------------------------------------------------------- -*/ -/* #define SELF_TEST 1 */ - -#include <stdio.h> /* defines printf for tests */ -#include <time.h> /* defines time_t for timings in the test */ -#include <stdint.h> /* defines uint32_t etc */ -#include <sys/param.h> /* attempt to define endianness */ -#ifdef linux -# include <endian.h> /* attempt to define endianness */ -#endif - -/* - * My best guess at if you are big-endian or little-endian. This may - * need adjustment. - */ -#if (defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && \ - __BYTE_ORDER == __LITTLE_ENDIAN) || \ - (defined(i386) || defined(__i386__) || defined(__i486__) || \ - defined(__i586__) || defined(__i686__) || defined(vax) || defined(MIPSEL)) -# define HASH_LITTLE_ENDIAN 1 -# define HASH_BIG_ENDIAN 0 -#elif (defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && \ - __BYTE_ORDER == __BIG_ENDIAN) || \ - (defined(sparc) || defined(POWERPC) || defined(mc68000) || defined(sel)) -# define HASH_LITTLE_ENDIAN 0 -# define HASH_BIG_ENDIAN 1 -#else -# define HASH_LITTLE_ENDIAN 0 -# define HASH_BIG_ENDIAN 0 -#endif - -#define hashsize(n) ((uint32_t)1<<(n)) -#define hashmask(n) (hashsize(n)-1) -#define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k)))) - -/* -------------------------------------------------------------------------------- -mix -- mix 3 32-bit values reversibly. - -This is reversible, so any information in (a,b,c) before mix() is -still in (a,b,c) after mix(). - -If four pairs of (a,b,c) inputs are run through mix(), or through -mix() in reverse, there are at least 32 bits of the output that -are sometimes the same for one pair and different for another pair. -This was tested for: -* pairs that differed by one bit, by two bits, in any combination - of top bits of (a,b,c), or in any combination of bottom bits of - (a,b,c). -* "differ" is defined as +, -, ^, or ~^. For + and -, I transformed - the output delta to a Gray code (a^(a>>1)) so a string of 1's (as - is commonly produced by subtraction) look like a single 1-bit - difference. -* the base values were pseudorandom, all zero but one bit set, or - all zero plus a counter that starts at zero. - -Some k values for my "a-=c; a^=rot(c,k); c+=b;" arrangement that -satisfy this are - 4 6 8 16 19 4 - 9 15 3 18 27 15 - 14 9 3 7 17 3 -Well, "9 15 3 18 27 15" didn't quite get 32 bits diffing -for "differ" defined as + with a one-bit base and a two-bit delta. I -used http://burtleburtle.net/bob/hash/avalanche.html to choose -the operations, constants, and arrangements of the variables. - -This does not achieve avalanche. There are input bits of (a,b,c) -that fail to affect some output bits of (a,b,c), especially of a. The -most thoroughly mixed value is c, but it doesn't really even achieve -avalanche in c. - -This allows some parallelism. Read-after-writes are good at doubling -the number of bits affected, so the goal of mixing pulls in the opposite -direction as the goal of parallelism. I did what I could. Rotates -seem to cost as much as shifts on every machine I could lay my hands -on, and rotates are much kinder to the top and bottom bits, so I used -rotates. -------------------------------------------------------------------------------- -*/ -#define mix(a,b,c) \ -{ \ - a -= c; a ^= rot(c, 4); c += b; \ - b -= a; b ^= rot(a, 6); a += c; \ - c -= b; c ^= rot(b, 8); b += a; \ - a -= c; a ^= rot(c,16); c += b; \ - b -= a; b ^= rot(a,19); a += c; \ - c -= b; c ^= rot(b, 4); b += a; \ -} - -/* -------------------------------------------------------------------------------- -final -- final mixing of 3 32-bit values (a,b,c) into c - -Pairs of (a,b,c) values differing in only a few bits will usually -produce values of c that look totally different. This was tested for -* pairs that differed by one bit, by two bits, in any combination - of top bits of (a,b,c), or in any combination of bottom bits of - (a,b,c). -* "differ" is defined as +, -, ^, or ~^. For + and -, I transformed - the output delta to a Gray code (a^(a>>1)) so a string of 1's (as - is commonly produced by subtraction) look like a single 1-bit - difference. -* the base values were pseudorandom, all zero but one bit set, or - all zero plus a counter that starts at zero. - -These constants passed: - 14 11 25 16 4 14 24 - 12 14 25 16 4 14 24 -and these came close: - 4 8 15 26 3 22 24 - 10 8 15 26 3 22 24 - 11 8 15 26 3 22 24 -------------------------------------------------------------------------------- -*/ -#define final(a,b,c) \ -{ \ - c ^= b; c -= rot(b,14); \ - a ^= c; a -= rot(c,11); \ - b ^= a; b -= rot(a,25); \ - c ^= b; c -= rot(b,16); \ - a ^= c; a -= rot(c,4); \ - b ^= a; b -= rot(a,14); \ - c ^= b; c -= rot(b,24); \ -} - -/* --------------------------------------------------------------------- - This works on all machines. To be useful, it requires - -- that the key be an array of uint32_t's, and - -- that the length be the number of uint32_t's in the key - - The function hashword() is identical to hashlittle() on little-endian - machines, and identical to hashbig() on big-endian machines, - except that the length has to be measured in uint32_ts rather than in - bytes. hashlittle() is more complicated than hashword() only because - hashlittle() has to dance around fitting the key bytes into registers. --------------------------------------------------------------------- -*/ -uint32_t jenkins_hashword( -const uint32_t *k, /* the key, an array of uint32_t values */ -size_t length, /* the length of the key, in uint32_ts */ -uint32_t initval) /* the previous hash, or an arbitrary value */ -{ - uint32_t a,b,c; - - /* Set up the internal state */ - a = b = c = 0xdeadbeef + (((uint32_t)length)<<2) + initval; - - /*------------------------------------------------- handle most of the key */ - while (length > 3) - { - a += k[0]; - b += k[1]; - c += k[2]; - mix(a,b,c); - length -= 3; - k += 3; - } - - /*------------------------------------------- handle the last 3 uint32_t's */ - switch(length) /* all the case statements fall through */ - { - case 3 : c+=k[2]; - case 2 : b+=k[1]; - case 1 : a+=k[0]; - final(a,b,c); - case 0: /* case 0: nothing left to add */ - break; - } - /*------------------------------------------------------ report the result */ - return c; -} - - -/* --------------------------------------------------------------------- -hashword2() -- same as hashword(), but take two seeds and return two -32-bit values. pc and pb must both be nonnull, and *pc and *pb must -both be initialized with seeds. If you pass in (*pb)==0, the output -(*pc) will be the same as the return value from hashword(). --------------------------------------------------------------------- -*/ -void jenkins_hashword2 ( -const uint32_t *k, /* the key, an array of uint32_t values */ -size_t length, /* the length of the key, in uint32_ts */ -uint32_t *pc, /* IN: seed OUT: primary hash value */ -uint32_t *pb) /* IN: more seed OUT: secondary hash value */ -{ - uint32_t a,b,c; - - /* Set up the internal state */ - a = b = c = 0xdeadbeef + ((uint32_t)(length<<2)) + *pc; - c += *pb; - - /*------------------------------------------------- handle most of the key */ - while (length > 3) - { - a += k[0]; - b += k[1]; - c += k[2]; - mix(a,b,c); - length -= 3; - k += 3; - } - - /*------------------------------------------- handle the last 3 uint32_t's */ - switch(length) /* all the case statements fall through */ - { - case 3 : c+=k[2]; - case 2 : b+=k[1]; - case 1 : a+=k[0]; - final(a,b,c); - case 0: /* case 0: nothing left to add */ - break; - } - /*------------------------------------------------------ report the result */ - *pc=c; *pb=b; -} - - -/* -------------------------------------------------------------------------------- -hashlittle() -- hash a variable-length key into a 32-bit value - k : the key (the unaligned variable-length array of bytes) - length : the length of the key, counting by bytes - initval : can be any 4-byte value -Returns a 32-bit value. Every bit of the key affects every bit of -the return value. Two keys differing by one or two bits will have -totally different hash values. - -The best hash table sizes are powers of 2. There is no need to do -mod a prime (mod is sooo slow!). If you need less than 32 bits, -use a bitmask. For example, if you need only 10 bits, do - h = (h & hashmask(10)); -In which case, the hash table should have hashsize(10) elements. - -If you are hashing n strings (uint8_t **)k, do it like this: - for (i=0, h=0; i<n; ++i) h = hashlittle( k[i], len[i], h); - -By Bob Jenkins, 2006. bob_jenkins@burtleburtle.net. You may use this -code any way you wish, private, educational, or commercial. It's free. - -Use for hash table lookup, or anything where one collision in 2^^32 is -acceptable. Do NOT use for cryptographic purposes. -------------------------------------------------------------------------------- -*/ - -uint32_t jenkins_hashlittle( const void *key, size_t length, uint32_t initval) -{ - uint32_t a,b,c; /* internal state */ - union { const void *ptr; size_t i; } u; /* needed for Mac Powerbook G4 */ - - /* Set up the internal state */ - a = b = c = 0xdeadbeef + ((uint32_t)length) + initval; - - u.ptr = key; - if (HASH_LITTLE_ENDIAN && ((u.i & 0x3) == 0)) { - const uint32_t *k = (const uint32_t *)key; /* read 32-bit chunks */ - - /*------ all but last block: aligned reads and affect 32 bits of (a,b,c) */ - while (length > 12) - { - a += k[0]; - b += k[1]; - c += k[2]; - mix(a,b,c); - length -= 12; - k += 3; - } - - /*----------------------------- handle the last (probably partial) block */ - /* - * "k[2]&0xffffff" actually reads beyond the end of the string, but - * then masks off the part it's not allowed to read. Because the - * string is aligned, the masked-off tail is in the same word as the - * rest of the string. Every machine with memory protection I've seen - * does it on word boundaries, so is OK with this. But VALGRIND will - * still catch it and complain. The masking trick does make the hash - * noticeably faster for short strings (like English words). - */ -#ifndef VALGRIND - - switch(length) - { - case 12: c+=k[2]; b+=k[1]; a+=k[0]; break; - case 11: c+=k[2]&0xffffff; b+=k[1]; a+=k[0]; break; - case 10: c+=k[2]&0xffff; b+=k[1]; a+=k[0]; break; - case 9 : c+=k[2]&0xff; b+=k[1]; a+=k[0]; break; - case 8 : b+=k[1]; a+=k[0]; break; - case 7 : b+=k[1]&0xffffff; a+=k[0]; break; - case 6 : b+=k[1]&0xffff; a+=k[0]; break; - case 5 : b+=k[1]&0xff; a+=k[0]; break; - case 4 : a+=k[0]; break; - case 3 : a+=k[0]&0xffffff; break; - case 2 : a+=k[0]&0xffff; break; - case 1 : a+=k[0]&0xff; break; - case 0 : return c; /* zero length strings require no mixing */ - } - -#else /* make valgrind happy */ - { - const uint8_t *k8 = (const uint8_t *) k; - - switch(length) - { - case 12: c+=k[2]; b+=k[1]; a+=k[0]; break; - case 11: c+=((uint32_t)k8[10])<<16; /* fall through */ - case 10: c+=((uint32_t)k8[9])<<8; /* fall through */ - case 9 : c+=k8[8]; /* fall through */ - case 8 : b+=k[1]; a+=k[0]; break; - case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */ - case 6 : b+=((uint32_t)k8[5])<<8; /* fall through */ - case 5 : b+=k8[4]; /* fall through */ - case 4 : a+=k[0]; break; - case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */ - case 2 : a+=((uint32_t)k8[1])<<8; /* fall through */ - case 1 : a+=k8[0]; break; - case 0 : return c; - } - } - -#endif /* !valgrind */ - - } else if (HASH_LITTLE_ENDIAN && ((u.i & 0x1) == 0)) { - const uint16_t *k = (const uint16_t *)key; /* read 16-bit chunks */ - const uint8_t *k8; - - /*--------------- all but last block: aligned reads and different mixing */ - while (length > 12) - { - a += k[0] + (((uint32_t)k[1])<<16); - b += k[2] + (((uint32_t)k[3])<<16); - c += k[4] + (((uint32_t)k[5])<<16); - mix(a,b,c); - length -= 12; - k += 6; - } - - /*----------------------------- handle the last (probably partial) block */ - k8 = (const uint8_t *)k; - switch(length) - { - case 12: c+=k[4]+(((uint32_t)k[5])<<16); - b+=k[2]+(((uint32_t)k[3])<<16); - a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 11: c+=((uint32_t)k8[10])<<16; /* fall through */ - case 10: c+=k[4]; - b+=k[2]+(((uint32_t)k[3])<<16); - a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 9 : c+=k8[8]; /* fall through */ - case 8 : b+=k[2]+(((uint32_t)k[3])<<16); - a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */ - case 6 : b+=k[2]; - a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 5 : b+=k8[4]; /* fall through */ - case 4 : a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */ - case 2 : a+=k[0]; - break; - case 1 : a+=k8[0]; - break; - case 0 : return c; /* zero length requires no mixing */ - } - - } else { /* need to read the key one byte at a time */ - const uint8_t *k = (const uint8_t *)key; - - /*--------------- all but the last block: affect some 32 bits of (a,b,c) */ - while (length > 12) - { - a += k[0]; - a += ((uint32_t)k[1])<<8; - a += ((uint32_t)k[2])<<16; - a += ((uint32_t)k[3])<<24; - b += k[4]; - b += ((uint32_t)k[5])<<8; - b += ((uint32_t)k[6])<<16; - b += ((uint32_t)k[7])<<24; - c += k[8]; - c += ((uint32_t)k[9])<<8; - c += ((uint32_t)k[10])<<16; - c += ((uint32_t)k[11])<<24; - mix(a,b,c); - length -= 12; - k += 12; - } - - /*-------------------------------- last block: affect all 32 bits of (c) */ - switch(length) /* all the case statements fall through */ - { - case 12: c+=((uint32_t)k[11])<<24; - case 11: c+=((uint32_t)k[10])<<16; - case 10: c+=((uint32_t)k[9])<<8; - case 9 : c+=k[8]; - case 8 : b+=((uint32_t)k[7])<<24; - case 7 : b+=((uint32_t)k[6])<<16; - case 6 : b+=((uint32_t)k[5])<<8; - case 5 : b+=k[4]; - case 4 : a+=((uint32_t)k[3])<<24; - case 3 : a+=((uint32_t)k[2])<<16; - case 2 : a+=((uint32_t)k[1])<<8; - case 1 : a+=k[0]; - break; - case 0 : return c; - } - } - - final(a,b,c); - return c; -} - - -/* - * hashlittle2: return 2 32-bit hash values - * - * This is identical to hashlittle(), except it returns two 32-bit hash - * values instead of just one. This is good enough for hash table - * lookup with 2^^64 buckets, or if you want a second hash if you're not - * happy with the first, or if you want a probably-unique 64-bit ID for - * the key. *pc is better mixed than *pb, so use *pc first. If you want - * a 64-bit value do something like "*pc + (((uint64_t)*pb)<<32)". - */ -void jenkins_hashlittle2( - const void *key, /* the key to hash */ - size_t length, /* length of the key */ - uint32_t *pc, /* IN: primary initval, OUT: primary hash */ - uint32_t *pb) /* IN: secondary initval, OUT: secondary hash */ -{ - uint32_t a,b,c; /* internal state */ - union { const void *ptr; size_t i; } u; /* needed for Mac Powerbook G4 */ - - /* Set up the internal state */ - a = b = c = 0xdeadbeef + ((uint32_t)length) + *pc; - c += *pb; - - u.ptr = key; - if (HASH_LITTLE_ENDIAN && ((u.i & 0x3) == 0)) { - const uint32_t *k = (const uint32_t *)key; /* read 32-bit chunks */ - - /*------ all but last block: aligned reads and affect 32 bits of (a,b,c) */ - while (length > 12) - { - a += k[0]; - b += k[1]; - c += k[2]; - mix(a,b,c); - length -= 12; - k += 3; - } - - /*----------------------------- handle the last (probably partial) block */ - /* - * "k[2]&0xffffff" actually reads beyond the end of the string, but - * then masks off the part it's not allowed to read. Because the - * string is aligned, the masked-off tail is in the same word as the - * rest of the string. Every machine with memory protection I've seen - * does it on word boundaries, so is OK with this. But VALGRIND will - * still catch it and complain. The masking trick does make the hash - * noticeably faster for short strings (like English words). - */ -#ifndef VALGRIND - - switch(length) - { - case 12: c+=k[2]; b+=k[1]; a+=k[0]; break; - case 11: c+=k[2]&0xffffff; b+=k[1]; a+=k[0]; break; - case 10: c+=k[2]&0xffff; b+=k[1]; a+=k[0]; break; - case 9 : c+=k[2]&0xff; b+=k[1]; a+=k[0]; break; - case 8 : b+=k[1]; a+=k[0]; break; - case 7 : b+=k[1]&0xffffff; a+=k[0]; break; - case 6 : b+=k[1]&0xffff; a+=k[0]; break; - case 5 : b+=k[1]&0xff; a+=k[0]; break; - case 4 : a+=k[0]; break; - case 3 : a+=k[0]&0xffffff; break; - case 2 : a+=k[0]&0xffff; break; - case 1 : a+=k[0]&0xff; break; - case 0 : *pc=c; *pb=b; return; /* zero length strings require no mixing */ - } - -#else /* make valgrind happy */ - - { - const uint8_t *k8 = (const uint8_t *)k; - switch(length) - { - case 12: c+=k[2]; b+=k[1]; a+=k[0]; break; - case 11: c+=((uint32_t)k8[10])<<16; /* fall through */ - case 10: c+=((uint32_t)k8[9])<<8; /* fall through */ - case 9 : c+=k8[8]; /* fall through */ - case 8 : b+=k[1]; a+=k[0]; break; - case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */ - case 6 : b+=((uint32_t)k8[5])<<8; /* fall through */ - case 5 : b+=k8[4]; /* fall through */ - case 4 : a+=k[0]; break; - case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */ - case 2 : a+=((uint32_t)k8[1])<<8; /* fall through */ - case 1 : a+=k8[0]; break; - case 0 : *pc=c; *pb=b; return; /* zero length strings require no mixing */ - } - } - -#endif /* !valgrind */ - - } else if (HASH_LITTLE_ENDIAN && ((u.i & 0x1) == 0)) { - const uint16_t *k = (const uint16_t *)key; /* read 16-bit chunks */ - const uint8_t *k8; - - /*--------------- all but last block: aligned reads and different mixing */ - while (length > 12) - { - a += k[0] + (((uint32_t)k[1])<<16); - b += k[2] + (((uint32_t)k[3])<<16); - c += k[4] + (((uint32_t)k[5])<<16); - mix(a,b,c); - length -= 12; - k += 6; - } - - /*----------------------------- handle the last (probably partial) block */ - k8 = (const uint8_t *)k; - switch(length) - { - case 12: c+=k[4]+(((uint32_t)k[5])<<16); - b+=k[2]+(((uint32_t)k[3])<<16); - a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 11: c+=((uint32_t)k8[10])<<16; /* fall through */ - case 10: c+=k[4]; - b+=k[2]+(((uint32_t)k[3])<<16); - a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 9 : c+=k8[8]; /* fall through */ - case 8 : b+=k[2]+(((uint32_t)k[3])<<16); - a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */ - case 6 : b+=k[2]; - a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 5 : b+=k8[4]; /* fall through */ - case 4 : a+=k[0]+(((uint32_t)k[1])<<16); - break; - case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */ - case 2 : a+=k[0]; - break; - case 1 : a+=k8[0]; - break; - case 0 : *pc=c; *pb=b; return; /* zero length strings require no mixing */ - } - - } else { /* need to read the key one byte at a time */ - const uint8_t *k = (const uint8_t *)key; - - /*--------------- all but the last block: affect some 32 bits of (a,b,c) */ - while (length > 12) - { - a += k[0]; - a += ((uint32_t)k[1])<<8; - a += ((uint32_t)k[2])<<16; - a += ((uint32_t)k[3])<<24; - b += k[4]; - b += ((uint32_t)k[5])<<8; - b += ((uint32_t)k[6])<<16; - b += ((uint32_t)k[7])<<24; - c += k[8]; - c += ((uint32_t)k[9])<<8; - c += ((uint32_t)k[10])<<16; - c += ((uint32_t)k[11])<<24; - mix(a,b,c); - length -= 12; - k += 12; - } - - /*-------------------------------- last block: affect all 32 bits of (c) */ - switch(length) /* all the case statements fall through */ - { - case 12: c+=((uint32_t)k[11])<<24; - case 11: c+=((uint32_t)k[10])<<16; - case 10: c+=((uint32_t)k[9])<<8; - case 9 : c+=k[8]; - case 8 : b+=((uint32_t)k[7])<<24; - case 7 : b+=((uint32_t)k[6])<<16; - case 6 : b+=((uint32_t)k[5])<<8; - case 5 : b+=k[4]; - case 4 : a+=((uint32_t)k[3])<<24; - case 3 : a+=((uint32_t)k[2])<<16; - case 2 : a+=((uint32_t)k[1])<<8; - case 1 : a+=k[0]; - break; - case 0 : *pc=c; *pb=b; return; /* zero length strings require no mixing */ - } - } - - final(a,b,c); - *pc=c; *pb=b; -} - - - -/* - * hashbig(): - * This is the same as hashword() on big-endian machines. It is different - * from hashlittle() on all machines. hashbig() takes advantage of - * big-endian byte ordering. - */ -uint32_t jenkins_hashbig( const void *key, size_t length, uint32_t initval) -{ - uint32_t a,b,c; - union { const void *ptr; size_t i; } u; /* to cast key to (size_t) happily */ - - /* Set up the internal state */ - a = b = c = 0xdeadbeef + ((uint32_t)length) + initval; - - u.ptr = key; - if (HASH_BIG_ENDIAN && ((u.i & 0x3) == 0)) { - const uint32_t *k = (const uint32_t *)key; /* read 32-bit chunks */ - - /*------ all but last block: aligned reads and affect 32 bits of (a,b,c) */ - while (length > 12) - { - a += k[0]; - b += k[1]; - c += k[2]; - mix(a,b,c); - length -= 12; - k += 3; - } - - /*----------------------------- handle the last (probably partial) block */ - /* - * "k[2]<<8" actually reads beyond the end of the string, but - * then shifts out the part it's not allowed to read. Because the - * string is aligned, the illegal read is in the same word as the - * rest of the string. Every machine with memory protection I've seen - * does it on word boundaries, so is OK with this. But VALGRIND will - * still catch it and complain. The masking trick does make the hash - * noticeably faster for short strings (like English words). - */ -#ifndef VALGRIND - - switch(length) - { - case 12: c+=k[2]; b+=k[1]; a+=k[0]; break; - case 11: c+=k[2]&0xffffff00; b+=k[1]; a+=k[0]; break; - case 10: c+=k[2]&0xffff0000; b+=k[1]; a+=k[0]; break; - case 9 : c+=k[2]&0xff000000; b+=k[1]; a+=k[0]; break; - case 8 : b+=k[1]; a+=k[0]; break; - case 7 : b+=k[1]&0xffffff00; a+=k[0]; break; - case 6 : b+=k[1]&0xffff0000; a+=k[0]; break; - case 5 : b+=k[1]&0xff000000; a+=k[0]; break; - case 4 : a+=k[0]; break; - case 3 : a+=k[0]&0xffffff00; break; - case 2 : a+=k[0]&0xffff0000; break; - case 1 : a+=k[0]&0xff000000; break; - case 0 : return c; /* zero length strings require no mixing */ - } - -#else /* make valgrind happy */ - - { - const uint8_t *k8 = (const uint8_t *)k; - switch(length) /* all the case statements fall through */ - { - case 12: c+=k[2]; b+=k[1]; a+=k[0]; break; - case 11: c+=((uint32_t)k8[10])<<8; /* fall through */ - case 10: c+=((uint32_t)k8[9])<<16; /* fall through */ - case 9 : c+=((uint32_t)k8[8])<<24; /* fall through */ - case 8 : b+=k[1]; a+=k[0]; break; - case 7 : b+=((uint32_t)k8[6])<<8; /* fall through */ - case 6 : b+=((uint32_t)k8[5])<<16; /* fall through */ - case 5 : b+=((uint32_t)k8[4])<<24; /* fall through */ - case 4 : a+=k[0]; break; - case 3 : a+=((uint32_t)k8[2])<<8; /* fall through */ - case 2 : a+=((uint32_t)k8[1])<<16; /* fall through */ - case 1 : a+=((uint32_t)k8[0])<<24; break; - case 0 : return c; - } - } - -#endif /* !VALGRIND */ - - } else { /* need to read the key one byte at a time */ - const uint8_t *k = (const uint8_t *)key; - - /*--------------- all but the last block: affect some 32 bits of (a,b,c) */ - while (length > 12) - { - a += ((uint32_t)k[0])<<24; - a += ((uint32_t)k[1])<<16; - a += ((uint32_t)k[2])<<8; - a += ((uint32_t)k[3]); - b += ((uint32_t)k[4])<<24; - b += ((uint32_t)k[5])<<16; - b += ((uint32_t)k[6])<<8; - b += ((uint32_t)k[7]); - c += ((uint32_t)k[8])<<24; - c += ((uint32_t)k[9])<<16; - c += ((uint32_t)k[10])<<8; - c += ((uint32_t)k[11]); - mix(a,b,c); - length -= 12; - k += 12; - } - - /*-------------------------------- last block: affect all 32 bits of (c) */ - switch(length) /* all the case statements fall through */ - { - case 12: c+=k[11]; - case 11: c+=((uint32_t)k[10])<<8; - case 10: c+=((uint32_t)k[9])<<16; - case 9 : c+=((uint32_t)k[8])<<24; - case 8 : b+=k[7]; - case 7 : b+=((uint32_t)k[6])<<8; - case 6 : b+=((uint32_t)k[5])<<16; - case 5 : b+=((uint32_t)k[4])<<24; - case 4 : a+=k[3]; - case 3 : a+=((uint32_t)k[2])<<8; - case 2 : a+=((uint32_t)k[1])<<16; - case 1 : a+=((uint32_t)k[0])<<24; - break; - case 0 : return c; - } - } - - final(a,b,c); - return c; -} - - -#ifdef SELF_TEST - -/* used for timings */ -void driver1() -{ - uint8_t buf[256]; - uint32_t i; - uint32_t h=0; - time_t a,z; - - time(&a); - for (i=0; i<256; ++i) buf[i] = 'x'; - for (i=0; i<1; ++i) - { - h = hashlittle(&buf[0],1,h); - } - time(&z); - if (z-a > 0) printf("time %d %.8x\n", z-a, h); -} - -/* check that every input bit changes every output bit half the time */ -#define HASHSTATE 1 -#define HASHLEN 1 -#define MAXPAIR 60 -#define MAXLEN 70 -void driver2() -{ - uint8_t qa[MAXLEN+1], qb[MAXLEN+2], *a = &qa[0], *b = &qb[1]; - uint32_t c[HASHSTATE], d[HASHSTATE], i=0, j=0, k, l, m=0, z; - uint32_t e[HASHSTATE],f[HASHSTATE],g[HASHSTATE],h[HASHSTATE]; - uint32_t x[HASHSTATE],y[HASHSTATE]; - uint32_t hlen; - - printf("No more than %d trials should ever be needed \n",MAXPAIR/2); - for (hlen=0; hlen < MAXLEN; ++hlen) - { - z=0; - for (i=0; i<hlen; ++i) /*----------------------- for each input byte, */ - { - for (j=0; j<8; ++j) /*------------------------ for each input bit, */ - { - for (m=1; m<8; ++m) /*------------ for serveral possible initvals, */ - { - for (l=0; l<HASHSTATE; ++l) - e[l]=f[l]=g[l]=h[l]=x[l]=y[l]=~((uint32_t)0); - - /*---- check that every output bit is affected by that input bit */ - for (k=0; k<MAXPAIR; k+=2) - { - uint32_t finished=1; - /* keys have one bit different */ - for (l=0; l<hlen+1; ++l) {a[l] = b[l] = (uint8_t)0;} - /* have a and b be two keys differing in only one bit */ - a[i] ^= (k<<j); - a[i] ^= (k>>(8-j)); - c[0] = hashlittle(a, hlen, m); - b[i] ^= ((k+1)<<j); - b[i] ^= ((k+1)>>(8-j)); - d[0] = hashlittle(b, hlen, m); - /* check every bit is 1, 0, set, and not set at least once */ - for (l=0; l<HASHSTATE; ++l) - { - e[l] &= (c[l]^d[l]); - f[l] &= ~(c[l]^d[l]); - g[l] &= c[l]; - h[l] &= ~c[l]; - x[l] &= d[l]; - y[l] &= ~d[l]; - if (e[l]|f[l]|g[l]|h[l]|x[l]|y[l]) finished=0; - } - if (finished) break; - } - if (k>z) z=k; - if (k==MAXPAIR) - { - printf("Some bit didn't change: "); - printf("%.8x %.8x %.8x %.8x %.8x %.8x ", - e[0],f[0],g[0],h[0],x[0],y[0]); - printf("i %d j %d m %d len %d\n", i, j, m, hlen); - } - if (z==MAXPAIR) goto done; - } - } - } - done: - if (z < MAXPAIR) - { - printf("Mix success %2d bytes %2d initvals ",i,m); - printf("required %d trials\n", z/2); - } - } - printf("\n"); -} - -/* Check for reading beyond the end of the buffer and alignment problems */ -void driver3() -{ - uint8_t buf[MAXLEN+20], *b; - uint32_t len; - uint8_t q[] = "This is the time for all good men to come to the aid of their country..."; - uint32_t h; - uint8_t qq[] = "xThis is the time for all good men to come to the aid of their country..."; - uint32_t i; - uint8_t qqq[] = "xxThis is the time for all good men to come to the aid of their country..."; - uint32_t j; - uint8_t qqqq[] = "xxxThis is the time for all good men to come to the aid of their country..."; - uint32_t ref,x,y; - uint8_t *p; - - printf("Endianness. These lines should all be the same (for values filled in):\n"); - printf("%.8x %.8x %.8x\n", - hashword((const uint32_t *)q, (sizeof(q)-1)/4, 13), - hashword((const uint32_t *)q, (sizeof(q)-5)/4, 13), - hashword((const uint32_t *)q, (sizeof(q)-9)/4, 13)); - p = q; - printf("%.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n", - hashlittle(p, sizeof(q)-1, 13), hashlittle(p, sizeof(q)-2, 13), - hashlittle(p, sizeof(q)-3, 13), hashlittle(p, sizeof(q)-4, 13), - hashlittle(p, sizeof(q)-5, 13), hashlittle(p, sizeof(q)-6, 13), - hashlittle(p, sizeof(q)-7, 13), hashlittle(p, sizeof(q)-8, 13), - hashlittle(p, sizeof(q)-9, 13), hashlittle(p, sizeof(q)-10, 13), - hashlittle(p, sizeof(q)-11, 13), hashlittle(p, sizeof(q)-12, 13)); - p = &qq[1]; - printf("%.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n", - hashlittle(p, sizeof(q)-1, 13), hashlittle(p, sizeof(q)-2, 13), - hashlittle(p, sizeof(q)-3, 13), hashlittle(p, sizeof(q)-4, 13), - hashlittle(p, sizeof(q)-5, 13), hashlittle(p, sizeof(q)-6, 13), - hashlittle(p, sizeof(q)-7, 13), hashlittle(p, sizeof(q)-8, 13), - hashlittle(p, sizeof(q)-9, 13), hashlittle(p, sizeof(q)-10, 13), - hashlittle(p, sizeof(q)-11, 13), hashlittle(p, sizeof(q)-12, 13)); - p = &qqq[2]; - printf("%.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n", - hashlittle(p, sizeof(q)-1, 13), hashlittle(p, sizeof(q)-2, 13), - hashlittle(p, sizeof(q)-3, 13), hashlittle(p, sizeof(q)-4, 13), - hashlittle(p, sizeof(q)-5, 13), hashlittle(p, sizeof(q)-6, 13), - hashlittle(p, sizeof(q)-7, 13), hashlittle(p, sizeof(q)-8, 13), - hashlittle(p, sizeof(q)-9, 13), hashlittle(p, sizeof(q)-10, 13), - hashlittle(p, sizeof(q)-11, 13), hashlittle(p, sizeof(q)-12, 13)); - p = &qqqq[3]; - printf("%.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n", - hashlittle(p, sizeof(q)-1, 13), hashlittle(p, sizeof(q)-2, 13), - hashlittle(p, sizeof(q)-3, 13), hashlittle(p, sizeof(q)-4, 13), - hashlittle(p, sizeof(q)-5, 13), hashlittle(p, sizeof(q)-6, 13), - hashlittle(p, sizeof(q)-7, 13), hashlittle(p, sizeof(q)-8, 13), - hashlittle(p, sizeof(q)-9, 13), hashlittle(p, sizeof(q)-10, 13), - hashlittle(p, sizeof(q)-11, 13), hashlittle(p, sizeof(q)-12, 13)); - printf("\n"); - - /* check that hashlittle2 and hashlittle produce the same results */ - i=47; j=0; - hashlittle2(q, sizeof(q), &i, &j); - if (hashlittle(q, sizeof(q), 47) != i) - printf("hashlittle2 and hashlittle mismatch\n"); - - /* check that hashword2 and hashword produce the same results */ - len = 0xdeadbeef; - i=47, j=0; - hashword2(&len, 1, &i, &j); - if (hashword(&len, 1, 47) != i) - printf("hashword2 and hashword mismatch %x %x\n", - i, hashword(&len, 1, 47)); - - /* check hashlittle doesn't read before or after the ends of the string */ - for (h=0, b=buf+1; h<8; ++h, ++b) - { - for (i=0; i<MAXLEN; ++i) - { - len = i; - for (j=0; j<i; ++j) *(b+j)=0; - - /* these should all be equal */ - ref = hashlittle(b, len, (uint32_t)1); - *(b+i)=(uint8_t)~0; - *(b-1)=(uint8_t)~0; - x = hashlittle(b, len, (uint32_t)1); - y = hashlittle(b, len, (uint32_t)1); - if ((ref != x) || (ref != y)) - { - printf("alignment error: %.8x %.8x %.8x %d %d\n",ref,x,y, - h, i); - } - } - } -} - -/* check for problems with nulls */ - void driver4() -{ - uint8_t buf[1]; - uint32_t h,i,state[HASHSTATE]; - - - buf[0] = ~0; - for (i=0; i<HASHSTATE; ++i) state[i] = 1; - printf("These should all be different\n"); - for (i=0, h=0; i<8; ++i) - { - h = hashlittle(buf, 0, h); - printf("%2ld 0-byte strings, hash is %.8x\n", i, h); - } -} - -void driver5() -{ - uint32_t b,c; - b=0, c=0, hashlittle2("", 0, &c, &b); - printf("hash is %.8lx %.8lx\n", c, b); /* deadbeef deadbeef */ - b=0xdeadbeef, c=0, hashlittle2("", 0, &c, &b); - printf("hash is %.8lx %.8lx\n", c, b); /* bd5b7dde deadbeef */ - b=0xdeadbeef, c=0xdeadbeef, hashlittle2("", 0, &c, &b); - printf("hash is %.8lx %.8lx\n", c, b); /* 9c093ccd bd5b7dde */ - b=0, c=0, hashlittle2("Four score and seven years ago", 30, &c, &b); - printf("hash is %.8lx %.8lx\n", c, b); /* 17770551 ce7226e6 */ - b=1, c=0, hashlittle2("Four score and seven years ago", 30, &c, &b); - printf("hash is %.8lx %.8lx\n", c, b); /* e3607cae bd371de4 */ - b=0, c=1, hashlittle2("Four score and seven years ago", 30, &c, &b); - printf("hash is %.8lx %.8lx\n", c, b); /* cd628161 6cbea4b3 */ - c = hashlittle("Four score and seven years ago", 30, 0); - printf("hash is %.8lx\n", c); /* 17770551 */ - c = hashlittle("Four score and seven years ago", 30, 1); - printf("hash is %.8lx\n", c); /* cd628161 */ -} - - -int main() -{ - driver1(); /* test that the key is hashed: used for timings */ - driver2(); /* test that whole key is hashed thoroughly */ - driver3(); /* test that nothing but the key is hashed */ - driver4(); /* test hashing multiple buffers (all buffers are null) */ - driver5(); /* test the hash against known vectors */ - return 1; -} - -#endif /* SELF_TEST */ diff --git a/src/journal/lookup3.h b/src/journal/lookup3.h deleted file mode 100644 index 3224473a6a..0000000000 --- a/src/journal/lookup3.h +++ /dev/null @@ -1,24 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -#include <inttypes.h> -#include <sys/types.h> - -#include "macro.h" - -uint32_t jenkins_hashword(const uint32_t *k, size_t length, uint32_t initval) _pure_; -void jenkins_hashword2(const uint32_t *k, size_t length, uint32_t *pc, uint32_t *pb); - -uint32_t jenkins_hashlittle(const void *key, size_t length, uint32_t initval) _pure_; -void jenkins_hashlittle2(const void *key, size_t length, uint32_t *pc, uint32_t *pb); - -uint32_t jenkins_hashbig(const void *key, size_t length, uint32_t initval) _pure_; - -static inline uint64_t hash64(const void *data, size_t length) { - uint32_t a = 0, b = 0; - - jenkins_hashlittle2(data, length, &a, &b); - - return ((uint64_t) a << 32ULL) | (uint64_t) b; -} diff --git a/src/journal/mmap-cache.c b/src/journal/mmap-cache.c deleted file mode 100644 index 22f75540b8..0000000000 --- a/src/journal/mmap-cache.c +++ /dev/null @@ -1,705 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <stdlib.h> -#include <sys/mman.h> - -#include "hashmap.h" -#include "list.h" -#include "log.h" -#include "util.h" -#include "macro.h" -#include "sigbus.h" -#include "mmap-cache.h" - -typedef struct Window Window; -typedef struct Context Context; -typedef struct FileDescriptor FileDescriptor; - -struct Window { - MMapCache *cache; - - bool invalidated; - bool keep_always; - bool in_unused; - - int prot; - void *ptr; - uint64_t offset; - size_t size; - - FileDescriptor *fd; - - LIST_FIELDS(Window, by_fd); - LIST_FIELDS(Window, unused); - - LIST_HEAD(Context, contexts); -}; - -struct Context { - MMapCache *cache; - unsigned id; - Window *window; - - LIST_FIELDS(Context, by_window); -}; - -struct FileDescriptor { - MMapCache *cache; - int fd; - bool sigbus; - LIST_HEAD(Window, windows); -}; - -struct MMapCache { - int n_ref; - unsigned n_windows; - - unsigned n_hit, n_missed; - - - Hashmap *fds; - Context *contexts[MMAP_CACHE_MAX_CONTEXTS]; - - LIST_HEAD(Window, unused); - Window *last_unused; -}; - -#define WINDOWS_MIN 64 - -#ifdef ENABLE_DEBUG_MMAP_CACHE -/* Tiny windows increase mmap activity and the chance of exposing unsafe use. */ -# define WINDOW_SIZE (page_size()) -#else -# define WINDOW_SIZE (8ULL*1024ULL*1024ULL) -#endif - -MMapCache* mmap_cache_new(void) { - MMapCache *m; - - m = new0(MMapCache, 1); - if (!m) - return NULL; - - m->n_ref = 1; - return m; -} - -MMapCache* mmap_cache_ref(MMapCache *m) { - assert(m); - assert(m->n_ref > 0); - - m->n_ref ++; - return m; -} - -static void window_unlink(Window *w) { - Context *c; - - assert(w); - - if (w->ptr) - munmap(w->ptr, w->size); - - if (w->fd) - LIST_REMOVE(by_fd, w->fd->windows, w); - - if (w->in_unused) { - if (w->cache->last_unused == w) - w->cache->last_unused = w->unused_prev; - - LIST_REMOVE(unused, w->cache->unused, w); - } - - LIST_FOREACH(by_window, c, w->contexts) { - assert(c->window == w); - c->window = NULL; - } -} - -static void window_invalidate(Window *w) { - assert(w); - - if (w->invalidated) - return; - - /* Replace the window with anonymous pages. This is useful - * when we hit a SIGBUS and want to make sure the file cannot - * trigger any further SIGBUS, possibly overrunning the sigbus - * queue. */ - - assert_se(mmap(w->ptr, w->size, w->prot, MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0) == w->ptr); - w->invalidated = true; -} - -static void window_free(Window *w) { - assert(w); - - window_unlink(w); - w->cache->n_windows--; - free(w); -} - -_pure_ static bool window_matches(Window *w, int fd, int prot, uint64_t offset, size_t size) { - assert(w); - assert(fd >= 0); - assert(size > 0); - - return - w->fd && - fd == w->fd->fd && - prot == w->prot && - offset >= w->offset && - offset + size <= w->offset + w->size; -} - -static Window *window_add(MMapCache *m) { - Window *w; - - assert(m); - - if (!m->last_unused || m->n_windows <= WINDOWS_MIN) { - - /* Allocate a new window */ - w = new0(Window, 1); - if (!w) - return NULL; - m->n_windows++; - } else { - - /* Reuse an existing one */ - w = m->last_unused; - window_unlink(w); - zero(*w); - } - - w->cache = m; - return w; -} - -static void context_detach_window(Context *c) { - Window *w; - - assert(c); - - if (!c->window) - return; - - w = c->window; - c->window = NULL; - LIST_REMOVE(by_window, w->contexts, c); - - if (!w->contexts && !w->keep_always) { - /* Not used anymore? */ -#ifdef ENABLE_DEBUG_MMAP_CACHE - /* Unmap unused windows immediately to expose use-after-unmap - * by SIGSEGV. */ - window_free(w); -#else - LIST_PREPEND(unused, c->cache->unused, w); - if (!c->cache->last_unused) - c->cache->last_unused = w; - - w->in_unused = true; -#endif - } -} - -static void context_attach_window(Context *c, Window *w) { - assert(c); - assert(w); - - if (c->window == w) - return; - - context_detach_window(c); - - if (w->in_unused) { - /* Used again? */ - LIST_REMOVE(unused, c->cache->unused, w); - if (c->cache->last_unused == w) - c->cache->last_unused = w->unused_prev; - - w->in_unused = false; - } - - c->window = w; - LIST_PREPEND(by_window, w->contexts, c); -} - -static Context *context_add(MMapCache *m, unsigned id) { - Context *c; - - assert(m); - - c = m->contexts[id]; - if (c) - return c; - - c = new0(Context, 1); - if (!c) - return NULL; - - c->cache = m; - c->id = id; - - assert(!m->contexts[id]); - m->contexts[id] = c; - - return c; -} - -static void context_free(Context *c) { - assert(c); - - context_detach_window(c); - - if (c->cache) { - assert(c->cache->contexts[c->id] == c); - c->cache->contexts[c->id] = NULL; - } - - free(c); -} - -static void fd_free(FileDescriptor *f) { - assert(f); - - while (f->windows) - window_free(f->windows); - - if (f->cache) - assert_se(hashmap_remove(f->cache->fds, INT_TO_PTR(f->fd + 1))); - - free(f); -} - -static FileDescriptor* fd_add(MMapCache *m, int fd) { - FileDescriptor *f; - int r; - - assert(m); - assert(fd >= 0); - - f = hashmap_get(m->fds, INT_TO_PTR(fd + 1)); - if (f) - return f; - - r = hashmap_ensure_allocated(&m->fds, NULL); - if (r < 0) - return NULL; - - f = new0(FileDescriptor, 1); - if (!f) - return NULL; - - f->cache = m; - f->fd = fd; - - r = hashmap_put(m->fds, UINT_TO_PTR(fd + 1), f); - if (r < 0) { - free(f); - return NULL; - } - - return f; -} - -static void mmap_cache_free(MMapCache *m) { - FileDescriptor *f; - int i; - - assert(m); - - for (i = 0; i < MMAP_CACHE_MAX_CONTEXTS; i++) - if (m->contexts[i]) - context_free(m->contexts[i]); - - while ((f = hashmap_first(m->fds))) - fd_free(f); - - hashmap_free(m->fds); - - while (m->unused) - window_free(m->unused); - - free(m); -} - -MMapCache* mmap_cache_unref(MMapCache *m) { - assert(m); - assert(m->n_ref > 0); - - m->n_ref --; - if (m->n_ref == 0) - mmap_cache_free(m); - - return NULL; -} - -static int make_room(MMapCache *m) { - assert(m); - - if (!m->last_unused) - return 0; - - window_free(m->last_unused); - return 1; -} - -static int try_context( - MMapCache *m, - int fd, - int prot, - unsigned context, - bool keep_always, - uint64_t offset, - size_t size, - void **ret) { - - Context *c; - - assert(m); - assert(m->n_ref > 0); - assert(fd >= 0); - assert(size > 0); - assert(ret); - - c = m->contexts[context]; - if (!c) - return 0; - - assert(c->id == context); - - if (!c->window) - return 0; - - if (!window_matches(c->window, fd, prot, offset, size)) { - - /* Drop the reference to the window, since it's unnecessary now */ - context_detach_window(c); - return 0; - } - - if (c->window->fd->sigbus) - return -EIO; - - c->window->keep_always |= keep_always; - - *ret = (uint8_t*) c->window->ptr + (offset - c->window->offset); - return 1; -} - -static int find_mmap( - MMapCache *m, - int fd, - int prot, - unsigned context, - bool keep_always, - uint64_t offset, - size_t size, - void **ret) { - - FileDescriptor *f; - Window *w; - Context *c; - - assert(m); - assert(m->n_ref > 0); - assert(fd >= 0); - assert(size > 0); - - f = hashmap_get(m->fds, INT_TO_PTR(fd + 1)); - if (!f) - return 0; - - assert(f->fd == fd); - - if (f->sigbus) - return -EIO; - - LIST_FOREACH(by_fd, w, f->windows) - if (window_matches(w, fd, prot, offset, size)) - break; - - if (!w) - return 0; - - c = context_add(m, context); - if (!c) - return -ENOMEM; - - context_attach_window(c, w); - w->keep_always += keep_always; - - *ret = (uint8_t*) w->ptr + (offset - w->offset); - return 1; -} - -static int add_mmap( - MMapCache *m, - int fd, - int prot, - unsigned context, - bool keep_always, - uint64_t offset, - size_t size, - struct stat *st, - void **ret) { - - uint64_t woffset, wsize; - Context *c; - FileDescriptor *f; - Window *w; - void *d; - int r; - - assert(m); - assert(m->n_ref > 0); - assert(fd >= 0); - assert(size > 0); - assert(ret); - - woffset = offset & ~((uint64_t) page_size() - 1ULL); - wsize = size + (offset - woffset); - wsize = PAGE_ALIGN(wsize); - - if (wsize < WINDOW_SIZE) { - uint64_t delta; - - delta = PAGE_ALIGN((WINDOW_SIZE - wsize) / 2); - - if (delta > offset) - woffset = 0; - else - woffset -= delta; - - wsize = WINDOW_SIZE; - } - - if (st) { - /* Memory maps that are larger then the files - underneath have undefined behavior. Hence, clamp - things to the file size if we know it */ - - if (woffset >= (uint64_t) st->st_size) - return -EADDRNOTAVAIL; - - if (woffset + wsize > (uint64_t) st->st_size) - wsize = PAGE_ALIGN(st->st_size - woffset); - } - - for (;;) { - d = mmap(NULL, wsize, prot, MAP_SHARED, fd, woffset); - if (d != MAP_FAILED) - break; - if (errno != ENOMEM) - return -errno; - - r = make_room(m); - if (r < 0) - return r; - if (r == 0) - return -ENOMEM; - } - - c = context_add(m, context); - if (!c) - goto outofmem; - - f = fd_add(m, fd); - if (!f) - goto outofmem; - - w = window_add(m); - if (!w) - goto outofmem; - - w->keep_always = keep_always; - w->ptr = d; - w->offset = woffset; - w->prot = prot; - w->size = wsize; - w->fd = f; - - LIST_PREPEND(by_fd, f->windows, w); - - context_detach_window(c); - c->window = w; - LIST_PREPEND(by_window, w->contexts, c); - - *ret = (uint8_t*) w->ptr + (offset - w->offset); - return 1; - -outofmem: - munmap(d, wsize); - return -ENOMEM; -} - -int mmap_cache_get( - MMapCache *m, - int fd, - int prot, - unsigned context, - bool keep_always, - uint64_t offset, - size_t size, - struct stat *st, - void **ret) { - - int r; - - assert(m); - assert(m->n_ref > 0); - assert(fd >= 0); - assert(size > 0); - assert(ret); - assert(context < MMAP_CACHE_MAX_CONTEXTS); - - /* Check whether the current context is the right one already */ - r = try_context(m, fd, prot, context, keep_always, offset, size, ret); - if (r != 0) { - m->n_hit ++; - return r; - } - - /* Search for a matching mmap */ - r = find_mmap(m, fd, prot, context, keep_always, offset, size, ret); - if (r != 0) { - m->n_hit ++; - return r; - } - - m->n_missed++; - - /* Create a new mmap */ - return add_mmap(m, fd, prot, context, keep_always, offset, size, st, ret); -} - -unsigned mmap_cache_get_hit(MMapCache *m) { - assert(m); - - return m->n_hit; -} - -unsigned mmap_cache_get_missed(MMapCache *m) { - assert(m); - - return m->n_missed; -} - -static void mmap_cache_process_sigbus(MMapCache *m) { - bool found = false; - FileDescriptor *f; - Iterator i; - int r; - - assert(m); - - /* Iterate through all triggered pages and mark their files as - * invalidated */ - for (;;) { - bool ours; - void *addr; - - r = sigbus_pop(&addr); - if (_likely_(r == 0)) - break; - if (r < 0) { - log_error_errno(r, "SIGBUS handling failed: %m"); - abort(); - } - - ours = false; - HASHMAP_FOREACH(f, m->fds, i) { - Window *w; - - LIST_FOREACH(by_fd, w, f->windows) { - if ((uint8_t*) addr >= (uint8_t*) w->ptr && - (uint8_t*) addr < (uint8_t*) w->ptr + w->size) { - found = ours = f->sigbus = true; - break; - } - } - - if (ours) - break; - } - - /* Didn't find a matching window, give up */ - if (!ours) { - log_error("Unknown SIGBUS page, aborting."); - abort(); - } - } - - /* The list of triggered pages is now empty. Now, let's remap - * all windows of the triggered file to anonymous maps, so - * that no page of the file in question is triggered again, so - * that we can be sure not to hit the queue size limit. */ - if (_likely_(!found)) - return; - - HASHMAP_FOREACH(f, m->fds, i) { - Window *w; - - if (!f->sigbus) - continue; - - LIST_FOREACH(by_fd, w, f->windows) - window_invalidate(w); - } -} - -bool mmap_cache_got_sigbus(MMapCache *m, int fd) { - FileDescriptor *f; - - assert(m); - assert(fd >= 0); - - mmap_cache_process_sigbus(m); - - f = hashmap_get(m->fds, INT_TO_PTR(fd + 1)); - if (!f) - return false; - - return f->sigbus; -} - -void mmap_cache_close_fd(MMapCache *m, int fd) { - FileDescriptor *f; - - assert(m); - assert(fd >= 0); - - /* Make sure that any queued SIGBUS are first dispatched, so - * that we don't end up with a SIGBUS entry we cannot relate - * to any existing memory map */ - - mmap_cache_process_sigbus(m); - - f = hashmap_get(m->fds, INT_TO_PTR(fd + 1)); - if (!f) - return; - - fd_free(f); -} diff --git a/src/journal/mmap-cache.h b/src/journal/mmap-cache.h deleted file mode 100644 index 37ea7b4a9c..0000000000 --- a/src/journal/mmap-cache.h +++ /dev/null @@ -1,51 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdbool.h> -#include <sys/stat.h> - -/* One context per object type, plus one of the header, plus one "additional" one */ -#define MMAP_CACHE_MAX_CONTEXTS 9 - -typedef struct MMapCache MMapCache; - -MMapCache* mmap_cache_new(void); -MMapCache* mmap_cache_ref(MMapCache *m); -MMapCache* mmap_cache_unref(MMapCache *m); - -int mmap_cache_get( - MMapCache *m, - int fd, - int prot, - unsigned context, - bool keep_always, - uint64_t offset, - size_t size, - struct stat *st, - void **ret); -void mmap_cache_close_fd(MMapCache *m, int fd); - -unsigned mmap_cache_get_hit(MMapCache *m); -unsigned mmap_cache_get_missed(MMapCache *m); - -bool mmap_cache_got_sigbus(MMapCache *m, int fd); diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c deleted file mode 100644 index 9b9e8ac859..0000000000 --- a/src/journal/sd-journal.c +++ /dev/null @@ -1,2618 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <fcntl.h> -#include <stddef.h> -#include <unistd.h> -#include <sys/inotify.h> -#include <poll.h> -#include <sys/vfs.h> -#include <linux/magic.h> - -#include "sd-journal.h" -#include "journal-def.h" -#include "journal-file.h" -#include "hashmap.h" -#include "list.h" -#include "strv.h" -#include "path-util.h" -#include "lookup3.h" -#include "compress.h" -#include "journal-internal.h" -#include "missing.h" -#include "catalog.h" -#include "replace-var.h" -#include "fileio.h" - -#define JOURNAL_FILES_MAX 7168 - -#define JOURNAL_FILES_RECHECK_USEC (2 * USEC_PER_SEC) - -#define REPLACE_VAR_MAX 256 - -#define DEFAULT_DATA_THRESHOLD (64*1024) - -static void remove_file_real(sd_journal *j, JournalFile *f); - -static bool journal_pid_changed(sd_journal *j) { - assert(j); - - /* We don't support people creating a journal object and - * keeping it around over a fork(). Let's complain. */ - - return j->original_pid != getpid(); -} - -/* We return an error here only if we didn't manage to - memorize the real error. */ -static int set_put_error(sd_journal *j, int r) { - int k; - - if (r >= 0) - return r; - - k = set_ensure_allocated(&j->errors, NULL); - if (k < 0) - return k; - - return set_put(j->errors, INT_TO_PTR(r)); -} - -static void detach_location(sd_journal *j) { - Iterator i; - JournalFile *f; - - assert(j); - - j->current_file = NULL; - j->current_field = 0; - - ORDERED_HASHMAP_FOREACH(f, j->files, i) - journal_file_reset_location(f); -} - -static void reset_location(sd_journal *j) { - assert(j); - - detach_location(j); - zero(j->current_location); -} - -static void init_location(Location *l, LocationType type, JournalFile *f, Object *o) { - assert(l); - assert(type == LOCATION_DISCRETE || type == LOCATION_SEEK); - assert(f); - assert(o->object.type == OBJECT_ENTRY); - - l->type = type; - l->seqnum = le64toh(o->entry.seqnum); - l->seqnum_id = f->header->seqnum_id; - l->realtime = le64toh(o->entry.realtime); - l->monotonic = le64toh(o->entry.monotonic); - l->boot_id = o->entry.boot_id; - l->xor_hash = le64toh(o->entry.xor_hash); - - l->seqnum_set = l->realtime_set = l->monotonic_set = l->xor_hash_set = true; -} - -static void set_location(sd_journal *j, JournalFile *f, Object *o) { - assert(j); - assert(f); - assert(o); - - init_location(&j->current_location, LOCATION_DISCRETE, f, o); - - j->current_file = f; - j->current_field = 0; - - /* Let f know its candidate entry was picked. */ - assert(f->location_type == LOCATION_SEEK); - f->location_type = LOCATION_DISCRETE; -} - -static int match_is_valid(const void *data, size_t size) { - const char *b, *p; - - assert(data); - - if (size < 2) - return false; - - if (startswith(data, "__")) - return false; - - b = data; - for (p = b; p < b + size; p++) { - - if (*p == '=') - return p > b; - - if (*p == '_') - continue; - - if (*p >= 'A' && *p <= 'Z') - continue; - - if (*p >= '0' && *p <= '9') - continue; - - return false; - } - - return false; -} - -static bool same_field(const void *_a, size_t s, const void *_b, size_t t) { - const uint8_t *a = _a, *b = _b; - size_t j; - - for (j = 0; j < s && j < t; j++) { - - if (a[j] != b[j]) - return false; - - if (a[j] == '=') - return true; - } - - assert_not_reached("\"=\" not found"); -} - -static Match *match_new(Match *p, MatchType t) { - Match *m; - - m = new0(Match, 1); - if (!m) - return NULL; - - m->type = t; - - if (p) { - m->parent = p; - LIST_PREPEND(matches, p->matches, m); - } - - return m; -} - -static void match_free(Match *m) { - assert(m); - - while (m->matches) - match_free(m->matches); - - if (m->parent) - LIST_REMOVE(matches, m->parent->matches, m); - - free(m->data); - free(m); -} - -static void match_free_if_empty(Match *m) { - if (!m || m->matches) - return; - - match_free(m); -} - -_public_ int sd_journal_add_match(sd_journal *j, const void *data, size_t size) { - Match *l3, *l4, *add_here = NULL, *m; - le64_t le_hash; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(data, -EINVAL); - - if (size == 0) - size = strlen(data); - - assert_return(match_is_valid(data, size), -EINVAL); - - /* level 0: AND term - * level 1: OR terms - * level 2: AND terms - * level 3: OR terms - * level 4: concrete matches */ - - if (!j->level0) { - j->level0 = match_new(NULL, MATCH_AND_TERM); - if (!j->level0) - return -ENOMEM; - } - - if (!j->level1) { - j->level1 = match_new(j->level0, MATCH_OR_TERM); - if (!j->level1) - return -ENOMEM; - } - - if (!j->level2) { - j->level2 = match_new(j->level1, MATCH_AND_TERM); - if (!j->level2) - return -ENOMEM; - } - - assert(j->level0->type == MATCH_AND_TERM); - assert(j->level1->type == MATCH_OR_TERM); - assert(j->level2->type == MATCH_AND_TERM); - - le_hash = htole64(hash64(data, size)); - - LIST_FOREACH(matches, l3, j->level2->matches) { - assert(l3->type == MATCH_OR_TERM); - - LIST_FOREACH(matches, l4, l3->matches) { - assert(l4->type == MATCH_DISCRETE); - - /* Exactly the same match already? Then ignore - * this addition */ - if (l4->le_hash == le_hash && - l4->size == size && - memcmp(l4->data, data, size) == 0) - return 0; - - /* Same field? Then let's add this to this OR term */ - if (same_field(data, size, l4->data, l4->size)) { - add_here = l3; - break; - } - } - - if (add_here) - break; - } - - if (!add_here) { - add_here = match_new(j->level2, MATCH_OR_TERM); - if (!add_here) - goto fail; - } - - m = match_new(add_here, MATCH_DISCRETE); - if (!m) - goto fail; - - m->le_hash = le_hash; - m->size = size; - m->data = memdup(data, size); - if (!m->data) - goto fail; - - detach_location(j); - - return 0; - -fail: - match_free_if_empty(add_here); - match_free_if_empty(j->level2); - match_free_if_empty(j->level1); - match_free_if_empty(j->level0); - - return -ENOMEM; -} - -_public_ int sd_journal_add_conjunction(sd_journal *j) { - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - if (!j->level0) - return 0; - - if (!j->level1) - return 0; - - if (!j->level1->matches) - return 0; - - j->level1 = NULL; - j->level2 = NULL; - - return 0; -} - -_public_ int sd_journal_add_disjunction(sd_journal *j) { - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - if (!j->level0) - return 0; - - if (!j->level1) - return 0; - - if (!j->level2) - return 0; - - if (!j->level2->matches) - return 0; - - j->level2 = NULL; - return 0; -} - -static char *match_make_string(Match *m) { - char *p, *r; - Match *i; - bool enclose = false; - - if (!m) - return strdup("none"); - - if (m->type == MATCH_DISCRETE) - return strndup(m->data, m->size); - - p = NULL; - LIST_FOREACH(matches, i, m->matches) { - char *t, *k; - - t = match_make_string(i); - if (!t) { - free(p); - return NULL; - } - - if (p) { - k = strjoin(p, m->type == MATCH_OR_TERM ? " OR " : " AND ", t, NULL); - free(p); - free(t); - - if (!k) - return NULL; - - p = k; - - enclose = true; - } else - p = t; - } - - if (enclose) { - r = strjoin("(", p, ")", NULL); - free(p); - return r; - } - - return p; -} - -char *journal_make_match_string(sd_journal *j) { - assert(j); - - return match_make_string(j->level0); -} - -_public_ void sd_journal_flush_matches(sd_journal *j) { - if (!j) - return; - - if (j->level0) - match_free(j->level0); - - j->level0 = j->level1 = j->level2 = NULL; - - detach_location(j); -} - -_pure_ static int compare_with_location(JournalFile *f, Location *l) { - assert(f); - assert(l); - assert(f->location_type == LOCATION_SEEK); - assert(l->type == LOCATION_DISCRETE || l->type == LOCATION_SEEK); - - if (l->monotonic_set && - sd_id128_equal(f->current_boot_id, l->boot_id) && - l->realtime_set && - f->current_realtime == l->realtime && - l->xor_hash_set && - f->current_xor_hash == l->xor_hash) - return 0; - - if (l->seqnum_set && - sd_id128_equal(f->header->seqnum_id, l->seqnum_id)) { - - if (f->current_seqnum < l->seqnum) - return -1; - if (f->current_seqnum > l->seqnum) - return 1; - } - - if (l->monotonic_set && - sd_id128_equal(f->current_boot_id, l->boot_id)) { - - if (f->current_monotonic < l->monotonic) - return -1; - if (f->current_monotonic > l->monotonic) - return 1; - } - - if (l->realtime_set) { - - if (f->current_realtime < l->realtime) - return -1; - if (f->current_realtime > l->realtime) - return 1; - } - - if (l->xor_hash_set) { - - if (f->current_xor_hash < l->xor_hash) - return -1; - if (f->current_xor_hash > l->xor_hash) - return 1; - } - - return 0; -} - -static int next_for_match( - sd_journal *j, - Match *m, - JournalFile *f, - uint64_t after_offset, - direction_t direction, - Object **ret, - uint64_t *offset) { - - int r; - uint64_t np = 0; - Object *n; - - assert(j); - assert(m); - assert(f); - - if (m->type == MATCH_DISCRETE) { - uint64_t dp; - - r = journal_file_find_data_object_with_hash(f, m->data, m->size, le64toh(m->le_hash), NULL, &dp); - if (r <= 0) - return r; - - return journal_file_move_to_entry_by_offset_for_data(f, dp, after_offset, direction, ret, offset); - - } else if (m->type == MATCH_OR_TERM) { - Match *i; - - /* Find the earliest match beyond after_offset */ - - LIST_FOREACH(matches, i, m->matches) { - uint64_t cp; - - r = next_for_match(j, i, f, after_offset, direction, NULL, &cp); - if (r < 0) - return r; - else if (r > 0) { - if (np == 0 || (direction == DIRECTION_DOWN ? cp < np : cp > np)) - np = cp; - } - } - - if (np == 0) - return 0; - - } else if (m->type == MATCH_AND_TERM) { - Match *i, *last_moved; - - /* Always jump to the next matching entry and repeat - * this until we find an offset that matches for all - * matches. */ - - if (!m->matches) - return 0; - - r = next_for_match(j, m->matches, f, after_offset, direction, NULL, &np); - if (r <= 0) - return r; - - assert(direction == DIRECTION_DOWN ? np >= after_offset : np <= after_offset); - last_moved = m->matches; - - LIST_LOOP_BUT_ONE(matches, i, m->matches, last_moved) { - uint64_t cp; - - r = next_for_match(j, i, f, np, direction, NULL, &cp); - if (r <= 0) - return r; - - assert(direction == DIRECTION_DOWN ? cp >= np : cp <= np); - if (direction == DIRECTION_DOWN ? cp > np : cp < np) { - np = cp; - last_moved = i; - } - } - } - - assert(np > 0); - - r = journal_file_move_to_object(f, OBJECT_ENTRY, np, &n); - if (r < 0) - return r; - - if (ret) - *ret = n; - if (offset) - *offset = np; - - return 1; -} - -static int find_location_for_match( - sd_journal *j, - Match *m, - JournalFile *f, - direction_t direction, - Object **ret, - uint64_t *offset) { - - int r; - - assert(j); - assert(m); - assert(f); - - if (m->type == MATCH_DISCRETE) { - uint64_t dp; - - r = journal_file_find_data_object_with_hash(f, m->data, m->size, le64toh(m->le_hash), NULL, &dp); - if (r <= 0) - return r; - - /* FIXME: missing: find by monotonic */ - - if (j->current_location.type == LOCATION_HEAD) - return journal_file_next_entry_for_data(f, NULL, 0, dp, DIRECTION_DOWN, ret, offset); - if (j->current_location.type == LOCATION_TAIL) - return journal_file_next_entry_for_data(f, NULL, 0, dp, DIRECTION_UP, ret, offset); - if (j->current_location.seqnum_set && sd_id128_equal(j->current_location.seqnum_id, f->header->seqnum_id)) - return journal_file_move_to_entry_by_seqnum_for_data(f, dp, j->current_location.seqnum, direction, ret, offset); - if (j->current_location.monotonic_set) { - r = journal_file_move_to_entry_by_monotonic_for_data(f, dp, j->current_location.boot_id, j->current_location.monotonic, direction, ret, offset); - if (r != -ENOENT) - return r; - } - if (j->current_location.realtime_set) - return journal_file_move_to_entry_by_realtime_for_data(f, dp, j->current_location.realtime, direction, ret, offset); - - return journal_file_next_entry_for_data(f, NULL, 0, dp, direction, ret, offset); - - } else if (m->type == MATCH_OR_TERM) { - uint64_t np = 0; - Object *n; - Match *i; - - /* Find the earliest match */ - - LIST_FOREACH(matches, i, m->matches) { - uint64_t cp; - - r = find_location_for_match(j, i, f, direction, NULL, &cp); - if (r < 0) - return r; - else if (r > 0) { - if (np == 0 || (direction == DIRECTION_DOWN ? np > cp : np < cp)) - np = cp; - } - } - - if (np == 0) - return 0; - - r = journal_file_move_to_object(f, OBJECT_ENTRY, np, &n); - if (r < 0) - return r; - - if (ret) - *ret = n; - if (offset) - *offset = np; - - return 1; - - } else { - Match *i; - uint64_t np = 0; - - assert(m->type == MATCH_AND_TERM); - - /* First jump to the last match, and then find the - * next one where all matches match */ - - if (!m->matches) - return 0; - - LIST_FOREACH(matches, i, m->matches) { - uint64_t cp; - - r = find_location_for_match(j, i, f, direction, NULL, &cp); - if (r <= 0) - return r; - - if (np == 0 || (direction == DIRECTION_DOWN ? cp > np : cp < np)) - np = cp; - } - - return next_for_match(j, m, f, np, direction, ret, offset); - } -} - -static int find_location_with_matches( - sd_journal *j, - JournalFile *f, - direction_t direction, - Object **ret, - uint64_t *offset) { - - int r; - - assert(j); - assert(f); - assert(ret); - assert(offset); - - if (!j->level0) { - /* No matches is simple */ - - if (j->current_location.type == LOCATION_HEAD) - return journal_file_next_entry(f, 0, DIRECTION_DOWN, ret, offset); - if (j->current_location.type == LOCATION_TAIL) - return journal_file_next_entry(f, 0, DIRECTION_UP, ret, offset); - if (j->current_location.seqnum_set && sd_id128_equal(j->current_location.seqnum_id, f->header->seqnum_id)) - return journal_file_move_to_entry_by_seqnum(f, j->current_location.seqnum, direction, ret, offset); - if (j->current_location.monotonic_set) { - r = journal_file_move_to_entry_by_monotonic(f, j->current_location.boot_id, j->current_location.monotonic, direction, ret, offset); - if (r != -ENOENT) - return r; - } - if (j->current_location.realtime_set) - return journal_file_move_to_entry_by_realtime(f, j->current_location.realtime, direction, ret, offset); - - return journal_file_next_entry(f, 0, direction, ret, offset); - } else - return find_location_for_match(j, j->level0, f, direction, ret, offset); -} - -static int next_with_matches( - sd_journal *j, - JournalFile *f, - direction_t direction, - Object **ret, - uint64_t *offset) { - - assert(j); - assert(f); - assert(ret); - assert(offset); - - /* No matches is easy. We simple advance the file - * pointer by one. */ - if (!j->level0) - return journal_file_next_entry(f, f->current_offset, direction, ret, offset); - - /* If we have a match then we look for the next matching entry - * with an offset at least one step larger */ - return next_for_match(j, j->level0, f, - direction == DIRECTION_DOWN ? f->current_offset + 1 - : f->current_offset - 1, - direction, ret, offset); -} - -static int next_beyond_location(sd_journal *j, JournalFile *f, direction_t direction) { - Object *c; - uint64_t cp, n_entries; - int r; - - assert(j); - assert(f); - - n_entries = le64toh(f->header->n_entries); - - /* If we hit EOF before, we don't need to look into this file again - * unless direction changed or new entries appeared. */ - if (f->last_direction == direction && f->location_type == LOCATION_TAIL && - n_entries == f->last_n_entries) - return 0; - - f->last_n_entries = n_entries; - - if (f->last_direction == direction && f->current_offset > 0) { - /* LOCATION_SEEK here means we did the work in a previous - * iteration and the current location already points to a - * candidate entry. */ - if (f->location_type != LOCATION_SEEK) { - r = next_with_matches(j, f, direction, &c, &cp); - if (r <= 0) - return r; - - journal_file_save_location(f, c, cp); - } - } else { - f->last_direction = direction; - - r = find_location_with_matches(j, f, direction, &c, &cp); - if (r <= 0) - return r; - - journal_file_save_location(f, c, cp); - } - - /* OK, we found the spot, now let's advance until an entry - * that is actually different from what we were previously - * looking at. This is necessary to handle entries which exist - * in two (or more) journal files, and which shall all be - * suppressed but one. */ - - for (;;) { - bool found; - - if (j->current_location.type == LOCATION_DISCRETE) { - int k; - - k = compare_with_location(f, &j->current_location); - - found = direction == DIRECTION_DOWN ? k > 0 : k < 0; - } else - found = true; - - if (found) - return 1; - - r = next_with_matches(j, f, direction, &c, &cp); - if (r <= 0) - return r; - - journal_file_save_location(f, c, cp); - } -} - -static int real_journal_next(sd_journal *j, direction_t direction) { - JournalFile *f, *new_file = NULL; - Iterator i; - Object *o; - int r; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - ORDERED_HASHMAP_FOREACH(f, j->files, i) { - bool found; - - r = next_beyond_location(j, f, direction); - if (r < 0) { - log_debug_errno(r, "Can't iterate through %s, ignoring: %m", f->path); - remove_file_real(j, f); - continue; - } else if (r == 0) { - f->location_type = LOCATION_TAIL; - continue; - } - - if (!new_file) - found = true; - else { - int k; - - k = journal_file_compare_locations(f, new_file); - - found = direction == DIRECTION_DOWN ? k < 0 : k > 0; - } - - if (found) - new_file = f; - } - - if (!new_file) - return 0; - - r = journal_file_move_to_object(new_file, OBJECT_ENTRY, new_file->current_offset, &o); - if (r < 0) - return r; - - set_location(j, new_file, o); - - return 1; -} - -_public_ int sd_journal_next(sd_journal *j) { - return real_journal_next(j, DIRECTION_DOWN); -} - -_public_ int sd_journal_previous(sd_journal *j) { - return real_journal_next(j, DIRECTION_UP); -} - -static int real_journal_next_skip(sd_journal *j, direction_t direction, uint64_t skip) { - int c = 0, r; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - if (skip == 0) { - /* If this is not a discrete skip, then at least - * resolve the current location */ - if (j->current_location.type != LOCATION_DISCRETE) - return real_journal_next(j, direction); - - return 0; - } - - do { - r = real_journal_next(j, direction); - if (r < 0) - return r; - - if (r == 0) - return c; - - skip--; - c++; - } while (skip > 0); - - return c; -} - -_public_ int sd_journal_next_skip(sd_journal *j, uint64_t skip) { - return real_journal_next_skip(j, DIRECTION_DOWN, skip); -} - -_public_ int sd_journal_previous_skip(sd_journal *j, uint64_t skip) { - return real_journal_next_skip(j, DIRECTION_UP, skip); -} - -_public_ int sd_journal_get_cursor(sd_journal *j, char **cursor) { - Object *o; - int r; - char bid[33], sid[33]; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(cursor, -EINVAL); - - if (!j->current_file || j->current_file->current_offset <= 0) - return -EADDRNOTAVAIL; - - r = journal_file_move_to_object(j->current_file, OBJECT_ENTRY, j->current_file->current_offset, &o); - if (r < 0) - return r; - - sd_id128_to_string(j->current_file->header->seqnum_id, sid); - sd_id128_to_string(o->entry.boot_id, bid); - - if (asprintf(cursor, - "s=%s;i=%"PRIx64";b=%s;m=%"PRIx64";t=%"PRIx64";x=%"PRIx64, - sid, le64toh(o->entry.seqnum), - bid, le64toh(o->entry.monotonic), - le64toh(o->entry.realtime), - le64toh(o->entry.xor_hash)) < 0) - return -ENOMEM; - - return 0; -} - -_public_ int sd_journal_seek_cursor(sd_journal *j, const char *cursor) { - const char *word, *state; - size_t l; - unsigned long long seqnum, monotonic, realtime, xor_hash; - bool - seqnum_id_set = false, - seqnum_set = false, - boot_id_set = false, - monotonic_set = false, - realtime_set = false, - xor_hash_set = false; - sd_id128_t seqnum_id, boot_id; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(!isempty(cursor), -EINVAL); - - FOREACH_WORD_SEPARATOR(word, l, cursor, ";", state) { - char *item; - int k = 0; - - if (l < 2 || word[1] != '=') - return -EINVAL; - - item = strndup(word, l); - if (!item) - return -ENOMEM; - - switch (word[0]) { - - case 's': - seqnum_id_set = true; - k = sd_id128_from_string(item+2, &seqnum_id); - break; - - case 'i': - seqnum_set = true; - if (sscanf(item+2, "%llx", &seqnum) != 1) - k = -EINVAL; - break; - - case 'b': - boot_id_set = true; - k = sd_id128_from_string(item+2, &boot_id); - break; - - case 'm': - monotonic_set = true; - if (sscanf(item+2, "%llx", &monotonic) != 1) - k = -EINVAL; - break; - - case 't': - realtime_set = true; - if (sscanf(item+2, "%llx", &realtime) != 1) - k = -EINVAL; - break; - - case 'x': - xor_hash_set = true; - if (sscanf(item+2, "%llx", &xor_hash) != 1) - k = -EINVAL; - break; - } - - free(item); - - if (k < 0) - return k; - } - - if ((!seqnum_set || !seqnum_id_set) && - (!monotonic_set || !boot_id_set) && - !realtime_set) - return -EINVAL; - - reset_location(j); - - j->current_location.type = LOCATION_SEEK; - - if (realtime_set) { - j->current_location.realtime = (uint64_t) realtime; - j->current_location.realtime_set = true; - } - - if (seqnum_set && seqnum_id_set) { - j->current_location.seqnum = (uint64_t) seqnum; - j->current_location.seqnum_id = seqnum_id; - j->current_location.seqnum_set = true; - } - - if (monotonic_set && boot_id_set) { - j->current_location.monotonic = (uint64_t) monotonic; - j->current_location.boot_id = boot_id; - j->current_location.monotonic_set = true; - } - - if (xor_hash_set) { - j->current_location.xor_hash = (uint64_t) xor_hash; - j->current_location.xor_hash_set = true; - } - - return 0; -} - -_public_ int sd_journal_test_cursor(sd_journal *j, const char *cursor) { - int r; - const char *word, *state; - size_t l; - Object *o; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(!isempty(cursor), -EINVAL); - - if (!j->current_file || j->current_file->current_offset <= 0) - return -EADDRNOTAVAIL; - - r = journal_file_move_to_object(j->current_file, OBJECT_ENTRY, j->current_file->current_offset, &o); - if (r < 0) - return r; - - FOREACH_WORD_SEPARATOR(word, l, cursor, ";", state) { - _cleanup_free_ char *item = NULL; - sd_id128_t id; - unsigned long long ll; - int k = 0; - - if (l < 2 || word[1] != '=') - return -EINVAL; - - item = strndup(word, l); - if (!item) - return -ENOMEM; - - switch (word[0]) { - - case 's': - k = sd_id128_from_string(item+2, &id); - if (k < 0) - return k; - if (!sd_id128_equal(id, j->current_file->header->seqnum_id)) - return 0; - break; - - case 'i': - if (sscanf(item+2, "%llx", &ll) != 1) - return -EINVAL; - if (ll != le64toh(o->entry.seqnum)) - return 0; - break; - - case 'b': - k = sd_id128_from_string(item+2, &id); - if (k < 0) - return k; - if (!sd_id128_equal(id, o->entry.boot_id)) - return 0; - break; - - case 'm': - if (sscanf(item+2, "%llx", &ll) != 1) - return -EINVAL; - if (ll != le64toh(o->entry.monotonic)) - return 0; - break; - - case 't': - if (sscanf(item+2, "%llx", &ll) != 1) - return -EINVAL; - if (ll != le64toh(o->entry.realtime)) - return 0; - break; - - case 'x': - if (sscanf(item+2, "%llx", &ll) != 1) - return -EINVAL; - if (ll != le64toh(o->entry.xor_hash)) - return 0; - break; - } - } - - return 1; -} - - -_public_ int sd_journal_seek_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t usec) { - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - reset_location(j); - j->current_location.type = LOCATION_SEEK; - j->current_location.boot_id = boot_id; - j->current_location.monotonic = usec; - j->current_location.monotonic_set = true; - - return 0; -} - -_public_ int sd_journal_seek_realtime_usec(sd_journal *j, uint64_t usec) { - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - reset_location(j); - j->current_location.type = LOCATION_SEEK; - j->current_location.realtime = usec; - j->current_location.realtime_set = true; - - return 0; -} - -_public_ int sd_journal_seek_head(sd_journal *j) { - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - reset_location(j); - j->current_location.type = LOCATION_HEAD; - - return 0; -} - -_public_ int sd_journal_seek_tail(sd_journal *j) { - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - reset_location(j); - j->current_location.type = LOCATION_TAIL; - - return 0; -} - -static void check_network(sd_journal *j, int fd) { - struct statfs sfs; - - assert(j); - - if (j->on_network) - return; - - if (fstatfs(fd, &sfs) < 0) - return; - - j->on_network = - F_TYPE_EQUAL(sfs.f_type, CIFS_MAGIC_NUMBER) || - F_TYPE_EQUAL(sfs.f_type, CODA_SUPER_MAGIC) || - F_TYPE_EQUAL(sfs.f_type, NCP_SUPER_MAGIC) || - F_TYPE_EQUAL(sfs.f_type, NFS_SUPER_MAGIC) || - F_TYPE_EQUAL(sfs.f_type, SMB_SUPER_MAGIC); -} - -static bool file_has_type_prefix(const char *prefix, const char *filename) { - const char *full, *tilded, *atted; - - full = strjoina(prefix, ".journal"); - tilded = strjoina(full, "~"); - atted = strjoina(prefix, "@"); - - return streq(filename, full) || - streq(filename, tilded) || - startswith(filename, atted); -} - -static bool file_type_wanted(int flags, const char *filename) { - if (!endswith(filename, ".journal") && !endswith(filename, ".journal~")) - return false; - - /* no flags set → every type is OK */ - if (!(flags & (SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER))) - return true; - - if (flags & SD_JOURNAL_SYSTEM && file_has_type_prefix("system", filename)) - return true; - - if (flags & SD_JOURNAL_CURRENT_USER) { - char prefix[5 + DECIMAL_STR_MAX(uid_t) + 1]; - - xsprintf(prefix, "user-"UID_FMT, getuid()); - - if (file_has_type_prefix(prefix, filename)) - return true; - } - - return false; -} - -static int add_any_file(sd_journal *j, const char *path) { - JournalFile *f = NULL; - int r; - - assert(j); - assert(path); - - if (ordered_hashmap_get(j->files, path)) - return 0; - - if (ordered_hashmap_size(j->files) >= JOURNAL_FILES_MAX) { - log_warning("Too many open journal files, not adding %s.", path); - return set_put_error(j, -ETOOMANYREFS); - } - - r = journal_file_open(path, O_RDONLY, 0, false, false, NULL, j->mmap, NULL, &f); - if (r < 0) - return r; - - /* journal_file_dump(f); */ - - r = ordered_hashmap_put(j->files, f->path, f); - if (r < 0) { - journal_file_close(f); - return r; - } - - log_debug("File %s added.", f->path); - - check_network(j, f->fd); - - j->current_invalidate_counter ++; - - return 0; -} - -static int add_file(sd_journal *j, const char *prefix, const char *filename) { - _cleanup_free_ char *path = NULL; - int r; - - assert(j); - assert(prefix); - assert(filename); - - if (j->no_new_files || - !file_type_wanted(j->flags, filename)) - return 0; - - path = strjoin(prefix, "/", filename, NULL); - if (!path) - return -ENOMEM; - - r = add_any_file(j, path); - if (r == -ENOENT) - return 0; - return r; -} - -static int remove_file(sd_journal *j, const char *prefix, const char *filename) { - _cleanup_free_ char *path; - JournalFile *f; - - assert(j); - assert(prefix); - assert(filename); - - path = strjoin(prefix, "/", filename, NULL); - if (!path) - return -ENOMEM; - - f = ordered_hashmap_get(j->files, path); - if (!f) - return 0; - - remove_file_real(j, f); - return 0; -} - -static void remove_file_real(sd_journal *j, JournalFile *f) { - assert(j); - assert(f); - - ordered_hashmap_remove(j->files, f->path); - - log_debug("File %s removed.", f->path); - - if (j->current_file == f) { - j->current_file = NULL; - j->current_field = 0; - } - - if (j->unique_file == f) { - /* Jump to the next unique_file or NULL if that one was last */ - j->unique_file = ordered_hashmap_next(j->files, j->unique_file->path); - j->unique_offset = 0; - if (!j->unique_file) - j->unique_file_lost = true; - } - - journal_file_close(f); - - j->current_invalidate_counter ++; -} - -static int add_directory(sd_journal *j, const char *prefix, const char *dirname) { - _cleanup_free_ char *path = NULL; - int r; - _cleanup_closedir_ DIR *d = NULL; - sd_id128_t id, mid; - Directory *m; - - assert(j); - assert(prefix); - assert(dirname); - - log_debug("Considering %s/%s.", prefix, dirname); - - if ((j->flags & SD_JOURNAL_LOCAL_ONLY) && - (sd_id128_from_string(dirname, &id) < 0 || - sd_id128_get_machine(&mid) < 0 || - !(sd_id128_equal(id, mid) || path_startswith(prefix, "/run")))) - return 0; - - path = strjoin(prefix, "/", dirname, NULL); - if (!path) - return -ENOMEM; - - d = opendir(path); - if (!d) { - log_debug_errno(errno, "Failed to open %s: %m", path); - if (errno == ENOENT) - return 0; - return -errno; - } - - m = hashmap_get(j->directories_by_path, path); - if (!m) { - m = new0(Directory, 1); - if (!m) - return -ENOMEM; - - m->is_root = false; - m->path = path; - - if (hashmap_put(j->directories_by_path, m->path, m) < 0) { - free(m); - return -ENOMEM; - } - - path = NULL; /* avoid freeing in cleanup */ - j->current_invalidate_counter ++; - - log_debug("Directory %s added.", m->path); - - } else if (m->is_root) - return 0; - - if (m->wd <= 0 && j->inotify_fd >= 0) { - - m->wd = inotify_add_watch(j->inotify_fd, m->path, - IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB|IN_DELETE| - IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_MOVED_FROM| - IN_ONLYDIR); - - if (m->wd > 0 && hashmap_put(j->directories_by_wd, INT_TO_PTR(m->wd), m) < 0) - inotify_rm_watch(j->inotify_fd, m->wd); - } - - for (;;) { - struct dirent *de; - - errno = 0; - de = readdir(d); - if (!de && errno != 0) { - r = -errno; - log_debug_errno(errno, "Failed to read directory %s: %m", m->path); - return r; - } - if (!de) - break; - - if (dirent_is_file_with_suffix(de, ".journal") || - dirent_is_file_with_suffix(de, ".journal~")) { - r = add_file(j, m->path, de->d_name); - if (r < 0) { - log_debug_errno(r, "Failed to add file %s/%s: %m", - m->path, de->d_name); - r = set_put_error(j, r); - if (r < 0) - return r; - } - } - } - - check_network(j, dirfd(d)); - - return 0; -} - -static int add_root_directory(sd_journal *j, const char *p) { - _cleanup_closedir_ DIR *d = NULL; - Directory *m; - int r; - - assert(j); - assert(p); - - if ((j->flags & SD_JOURNAL_RUNTIME_ONLY) && - !path_startswith(p, "/run")) - return -EINVAL; - - if (j->prefix) - p = strjoina(j->prefix, p); - - d = opendir(p); - if (!d) - return -errno; - - m = hashmap_get(j->directories_by_path, p); - if (!m) { - m = new0(Directory, 1); - if (!m) - return -ENOMEM; - - m->is_root = true; - m->path = strdup(p); - if (!m->path) { - free(m); - return -ENOMEM; - } - - if (hashmap_put(j->directories_by_path, m->path, m) < 0) { - free(m->path); - free(m); - return -ENOMEM; - } - - j->current_invalidate_counter ++; - - log_debug("Root directory %s added.", m->path); - - } else if (!m->is_root) - return 0; - - if (m->wd <= 0 && j->inotify_fd >= 0) { - - m->wd = inotify_add_watch(j->inotify_fd, m->path, - IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB|IN_DELETE| - IN_ONLYDIR); - - if (m->wd > 0 && hashmap_put(j->directories_by_wd, INT_TO_PTR(m->wd), m) < 0) - inotify_rm_watch(j->inotify_fd, m->wd); - } - - if (j->no_new_files) - return 0; - - for (;;) { - struct dirent *de; - sd_id128_t id; - - errno = 0; - de = readdir(d); - if (!de && errno != 0) { - r = -errno; - log_debug_errno(errno, "Failed to read directory %s: %m", m->path); - return r; - } - if (!de) - break; - - if (dirent_is_file_with_suffix(de, ".journal") || - dirent_is_file_with_suffix(de, ".journal~")) { - r = add_file(j, m->path, de->d_name); - if (r < 0) { - log_debug_errno(r, "Failed to add file %s/%s: %m", - m->path, de->d_name); - r = set_put_error(j, r); - if (r < 0) - return r; - } - } else if ((de->d_type == DT_DIR || de->d_type == DT_LNK || de->d_type == DT_UNKNOWN) && - sd_id128_from_string(de->d_name, &id) >= 0) { - - r = add_directory(j, m->path, de->d_name); - if (r < 0) - log_debug_errno(r, "Failed to add directory %s/%s: %m", m->path, de->d_name); - } - } - - check_network(j, dirfd(d)); - - return 0; -} - -static int remove_directory(sd_journal *j, Directory *d) { - assert(j); - - if (d->wd > 0) { - hashmap_remove(j->directories_by_wd, INT_TO_PTR(d->wd)); - - if (j->inotify_fd >= 0) - inotify_rm_watch(j->inotify_fd, d->wd); - } - - hashmap_remove(j->directories_by_path, d->path); - - if (d->is_root) - log_debug("Root directory %s removed.", d->path); - else - log_debug("Directory %s removed.", d->path); - - free(d->path); - free(d); - - return 0; -} - -static int add_search_paths(sd_journal *j) { - int r; - const char search_paths[] = - "/run/log/journal\0" - "/var/log/journal\0"; - const char *p; - - assert(j); - - /* We ignore most errors here, since the idea is to only open - * what's actually accessible, and ignore the rest. */ - - NULSTR_FOREACH(p, search_paths) { - r = add_root_directory(j, p); - if (r < 0 && r != -ENOENT) { - r = set_put_error(j, r); - if (r < 0) - return r; - } - } - - return 0; -} - -static int add_current_paths(sd_journal *j) { - Iterator i; - JournalFile *f; - - assert(j); - assert(j->no_new_files); - - /* Simply adds all directories for files we have open as - * "root" directories. We don't expect errors here, so we - * treat them as fatal. */ - - ORDERED_HASHMAP_FOREACH(f, j->files, i) { - _cleanup_free_ char *dir; - int r; - - dir = dirname_malloc(f->path); - if (!dir) - return -ENOMEM; - - r = add_root_directory(j, dir); - if (r < 0) { - set_put_error(j, r); - return r; - } - } - - return 0; -} - - -static int allocate_inotify(sd_journal *j) { - assert(j); - - if (j->inotify_fd < 0) { - j->inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); - if (j->inotify_fd < 0) - return -errno; - } - - if (!j->directories_by_wd) { - j->directories_by_wd = hashmap_new(NULL); - if (!j->directories_by_wd) - return -ENOMEM; - } - - return 0; -} - -static sd_journal *journal_new(int flags, const char *path) { - sd_journal *j; - - j = new0(sd_journal, 1); - if (!j) - return NULL; - - j->original_pid = getpid(); - j->inotify_fd = -1; - j->flags = flags; - j->data_threshold = DEFAULT_DATA_THRESHOLD; - - if (path) { - j->path = strdup(path); - if (!j->path) - goto fail; - } - - j->files = ordered_hashmap_new(&string_hash_ops); - j->directories_by_path = hashmap_new(&string_hash_ops); - j->mmap = mmap_cache_new(); - if (!j->files || !j->directories_by_path || !j->mmap) - goto fail; - - return j; - -fail: - sd_journal_close(j); - return NULL; -} - -_public_ int sd_journal_open(sd_journal **ret, int flags) { - sd_journal *j; - int r; - - assert_return(ret, -EINVAL); - assert_return((flags & ~(SD_JOURNAL_LOCAL_ONLY|SD_JOURNAL_RUNTIME_ONLY|SD_JOURNAL_SYSTEM|SD_JOURNAL_CURRENT_USER)) == 0, -EINVAL); - - j = journal_new(flags, NULL); - if (!j) - return -ENOMEM; - - r = add_search_paths(j); - if (r < 0) - goto fail; - - *ret = j; - return 0; - -fail: - sd_journal_close(j); - - return r; -} - -_public_ int sd_journal_open_container(sd_journal **ret, const char *machine, int flags) { - _cleanup_free_ char *root = NULL, *class = NULL; - sd_journal *j; - char *p; - int r; - - assert_return(machine, -EINVAL); - assert_return(ret, -EINVAL); - assert_return((flags & ~(SD_JOURNAL_LOCAL_ONLY|SD_JOURNAL_SYSTEM)) == 0, -EINVAL); - assert_return(machine_name_is_valid(machine), -EINVAL); - - p = strjoina("/run/systemd/machines/", machine); - r = parse_env_file(p, NEWLINE, "ROOT", &root, "CLASS", &class, NULL); - if (r == -ENOENT) - return -EHOSTDOWN; - if (r < 0) - return r; - if (!root) - return -ENODATA; - - if (!streq_ptr(class, "container")) - return -EIO; - - j = journal_new(flags, NULL); - if (!j) - return -ENOMEM; - - j->prefix = root; - root = NULL; - - r = add_search_paths(j); - if (r < 0) - goto fail; - - *ret = j; - return 0; - -fail: - sd_journal_close(j); - return r; -} - -_public_ int sd_journal_open_directory(sd_journal **ret, const char *path, int flags) { - sd_journal *j; - int r; - - assert_return(ret, -EINVAL); - assert_return(path, -EINVAL); - assert_return(flags == 0, -EINVAL); - - j = journal_new(flags, path); - if (!j) - return -ENOMEM; - - r = add_root_directory(j, path); - if (r < 0) { - set_put_error(j, r); - goto fail; - } - - *ret = j; - return 0; - -fail: - sd_journal_close(j); - - return r; -} - -_public_ int sd_journal_open_files(sd_journal **ret, const char **paths, int flags) { - sd_journal *j; - const char **path; - int r; - - assert_return(ret, -EINVAL); - assert_return(flags == 0, -EINVAL); - - j = journal_new(flags, NULL); - if (!j) - return -ENOMEM; - - STRV_FOREACH(path, paths) { - r = add_any_file(j, *path); - if (r < 0) { - log_error_errno(r, "Failed to open %s: %m", *path); - goto fail; - } - } - - j->no_new_files = true; - - *ret = j; - return 0; - -fail: - sd_journal_close(j); - - return r; -} - -_public_ void sd_journal_close(sd_journal *j) { - Directory *d; - JournalFile *f; - - if (!j) - return; - - sd_journal_flush_matches(j); - - while ((f = ordered_hashmap_steal_first(j->files))) - journal_file_close(f); - - ordered_hashmap_free(j->files); - - while ((d = hashmap_first(j->directories_by_path))) - remove_directory(j, d); - - while ((d = hashmap_first(j->directories_by_wd))) - remove_directory(j, d); - - hashmap_free(j->directories_by_path); - hashmap_free(j->directories_by_wd); - - safe_close(j->inotify_fd); - - if (j->mmap) { - log_debug("mmap cache statistics: %u hit, %u miss", mmap_cache_get_hit(j->mmap), mmap_cache_get_missed(j->mmap)); - mmap_cache_unref(j->mmap); - } - - free(j->path); - free(j->prefix); - free(j->unique_field); - set_free(j->errors); - free(j); -} - -_public_ int sd_journal_get_realtime_usec(sd_journal *j, uint64_t *ret) { - Object *o; - JournalFile *f; - int r; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(ret, -EINVAL); - - f = j->current_file; - if (!f) - return -EADDRNOTAVAIL; - - if (f->current_offset <= 0) - return -EADDRNOTAVAIL; - - r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); - if (r < 0) - return r; - - *ret = le64toh(o->entry.realtime); - return 0; -} - -_public_ int sd_journal_get_monotonic_usec(sd_journal *j, uint64_t *ret, sd_id128_t *ret_boot_id) { - Object *o; - JournalFile *f; - int r; - sd_id128_t id; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - f = j->current_file; - if (!f) - return -EADDRNOTAVAIL; - - if (f->current_offset <= 0) - return -EADDRNOTAVAIL; - - r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); - if (r < 0) - return r; - - if (ret_boot_id) - *ret_boot_id = o->entry.boot_id; - else { - r = sd_id128_get_boot(&id); - if (r < 0) - return r; - - if (!sd_id128_equal(id, o->entry.boot_id)) - return -ESTALE; - } - - if (ret) - *ret = le64toh(o->entry.monotonic); - - return 0; -} - -static bool field_is_valid(const char *field) { - const char *p; - - assert(field); - - if (isempty(field)) - return false; - - if (startswith(field, "__")) - return false; - - for (p = field; *p; p++) { - - if (*p == '_') - continue; - - if (*p >= 'A' && *p <= 'Z') - continue; - - if (*p >= '0' && *p <= '9') - continue; - - return false; - } - - return true; -} - -_public_ int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *size) { - JournalFile *f; - uint64_t i, n; - size_t field_length; - int r; - Object *o; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(field, -EINVAL); - assert_return(data, -EINVAL); - assert_return(size, -EINVAL); - assert_return(field_is_valid(field), -EINVAL); - - f = j->current_file; - if (!f) - return -EADDRNOTAVAIL; - - if (f->current_offset <= 0) - return -EADDRNOTAVAIL; - - r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); - if (r < 0) - return r; - - field_length = strlen(field); - - n = journal_file_entry_n_items(o); - for (i = 0; i < n; i++) { - uint64_t p, l; - le64_t le_hash; - size_t t; - int compression; - - p = le64toh(o->entry.items[i].object_offset); - le_hash = o->entry.items[i].hash; - r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); - if (r < 0) - return r; - - if (le_hash != o->data.hash) - return -EBADMSG; - - l = le64toh(o->object.size) - offsetof(Object, data.payload); - - compression = o->object.flags & OBJECT_COMPRESSION_MASK; - if (compression) { -#if defined(HAVE_XZ) || defined(HAVE_LZ4) - if (decompress_startswith(compression, - o->data.payload, l, - &f->compress_buffer, &f->compress_buffer_size, - field, field_length, '=')) { - - size_t rsize; - - r = decompress_blob(compression, - o->data.payload, l, - &f->compress_buffer, &f->compress_buffer_size, &rsize, - j->data_threshold); - if (r < 0) - return r; - - *data = f->compress_buffer; - *size = (size_t) rsize; - - return 0; - } -#else - return -EPROTONOSUPPORT; -#endif - } else if (l >= field_length+1 && - memcmp(o->data.payload, field, field_length) == 0 && - o->data.payload[field_length] == '=') { - - t = (size_t) l; - - if ((uint64_t) t != l) - return -E2BIG; - - *data = o->data.payload; - *size = t; - - return 0; - } - - r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); - if (r < 0) - return r; - } - - return -ENOENT; -} - -static int return_data(sd_journal *j, JournalFile *f, Object *o, const void **data, size_t *size) { - size_t t; - uint64_t l; - int compression; - - l = le64toh(o->object.size) - offsetof(Object, data.payload); - t = (size_t) l; - - /* We can't read objects larger than 4G on a 32bit machine */ - if ((uint64_t) t != l) - return -E2BIG; - - compression = o->object.flags & OBJECT_COMPRESSION_MASK; - if (compression) { -#if defined(HAVE_XZ) || defined(HAVE_LZ4) - size_t rsize; - int r; - - r = decompress_blob(compression, - o->data.payload, l, &f->compress_buffer, - &f->compress_buffer_size, &rsize, j->data_threshold); - if (r < 0) - return r; - - *data = f->compress_buffer; - *size = (size_t) rsize; -#else - return -EPROTONOSUPPORT; -#endif - } else { - *data = o->data.payload; - *size = t; - } - - return 0; -} - -_public_ int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *size) { - JournalFile *f; - uint64_t p, n; - le64_t le_hash; - int r; - Object *o; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(data, -EINVAL); - assert_return(size, -EINVAL); - - f = j->current_file; - if (!f) - return -EADDRNOTAVAIL; - - if (f->current_offset <= 0) - return -EADDRNOTAVAIL; - - r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); - if (r < 0) - return r; - - n = journal_file_entry_n_items(o); - if (j->current_field >= n) - return 0; - - p = le64toh(o->entry.items[j->current_field].object_offset); - le_hash = o->entry.items[j->current_field].hash; - r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); - if (r < 0) - return r; - - if (le_hash != o->data.hash) - return -EBADMSG; - - r = return_data(j, f, o, data, size); - if (r < 0) - return r; - - j->current_field ++; - - return 1; -} - -_public_ void sd_journal_restart_data(sd_journal *j) { - if (!j) - return; - - j->current_field = 0; -} - -_public_ int sd_journal_get_fd(sd_journal *j) { - int r; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - if (j->inotify_fd >= 0) - return j->inotify_fd; - - r = allocate_inotify(j); - if (r < 0) - return r; - - /* Iterate through all dirs again, to add them to the - * inotify */ - if (j->no_new_files) - r = add_current_paths(j); - else if (j->path) - r = add_root_directory(j, j->path); - else - r = add_search_paths(j); - if (r < 0) - return r; - - return j->inotify_fd; -} - -_public_ int sd_journal_get_events(sd_journal *j) { - int fd; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - fd = sd_journal_get_fd(j); - if (fd < 0) - return fd; - - return POLLIN; -} - -_public_ int sd_journal_get_timeout(sd_journal *j, uint64_t *timeout_usec) { - int fd; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(timeout_usec, -EINVAL); - - fd = sd_journal_get_fd(j); - if (fd < 0) - return fd; - - if (!j->on_network) { - *timeout_usec = (uint64_t) -1; - return 0; - } - - /* If we are on the network we need to regularly check for - * changes manually */ - - *timeout_usec = j->last_process_usec + JOURNAL_FILES_RECHECK_USEC; - return 1; -} - -static void process_inotify_event(sd_journal *j, struct inotify_event *e) { - Directory *d; - int r; - - assert(j); - assert(e); - - /* Is this a subdirectory we watch? */ - d = hashmap_get(j->directories_by_wd, INT_TO_PTR(e->wd)); - if (d) { - sd_id128_t id; - - if (!(e->mask & IN_ISDIR) && e->len > 0 && - (endswith(e->name, ".journal") || - endswith(e->name, ".journal~"))) { - - /* Event for a journal file */ - - if (e->mask & (IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB)) { - r = add_file(j, d->path, e->name); - if (r < 0) { - log_debug_errno(r, "Failed to add file %s/%s: %m", - d->path, e->name); - set_put_error(j, r); - } - - } else if (e->mask & (IN_DELETE|IN_MOVED_FROM|IN_UNMOUNT)) { - - r = remove_file(j, d->path, e->name); - if (r < 0) - log_debug_errno(r, "Failed to remove file %s/%s: %m", d->path, e->name); - } - - } else if (!d->is_root && e->len == 0) { - - /* Event for a subdirectory */ - - if (e->mask & (IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT)) { - r = remove_directory(j, d); - if (r < 0) - log_debug_errno(r, "Failed to remove directory %s: %m", d->path); - } - - - } else if (d->is_root && (e->mask & IN_ISDIR) && e->len > 0 && sd_id128_from_string(e->name, &id) >= 0) { - - /* Event for root directory */ - - if (e->mask & (IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB)) { - r = add_directory(j, d->path, e->name); - if (r < 0) - log_debug_errno(r, "Failed to add directory %s/%s: %m", d->path, e->name); - } - } - - return; - } - - if (e->mask & IN_IGNORED) - return; - - log_warning("Unknown inotify event."); -} - -static int determine_change(sd_journal *j) { - bool b; - - assert(j); - - b = j->current_invalidate_counter != j->last_invalidate_counter; - j->last_invalidate_counter = j->current_invalidate_counter; - - return b ? SD_JOURNAL_INVALIDATE : SD_JOURNAL_APPEND; -} - -_public_ int sd_journal_process(sd_journal *j) { - bool got_something = false; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - j->last_process_usec = now(CLOCK_MONOTONIC); - - for (;;) { - union inotify_event_buffer buffer; - struct inotify_event *e; - ssize_t l; - - l = read(j->inotify_fd, &buffer, sizeof(buffer)); - if (l < 0) { - if (errno == EAGAIN || errno == EINTR) - return got_something ? determine_change(j) : SD_JOURNAL_NOP; - - return -errno; - } - - got_something = true; - - FOREACH_INOTIFY_EVENT(e, buffer, l) - process_inotify_event(j, e); - } -} - -_public_ int sd_journal_wait(sd_journal *j, uint64_t timeout_usec) { - int r; - uint64_t t; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - if (j->inotify_fd < 0) { - - /* This is the first invocation, hence create the - * inotify watch */ - r = sd_journal_get_fd(j); - if (r < 0) - return r; - - /* The journal might have changed since the context - * object was created and we weren't watching before, - * hence don't wait for anything, and return - * immediately. */ - return determine_change(j); - } - - r = sd_journal_get_timeout(j, &t); - if (r < 0) - return r; - - if (t != (uint64_t) -1) { - usec_t n; - - n = now(CLOCK_MONOTONIC); - t = t > n ? t - n : 0; - - if (timeout_usec == (uint64_t) -1 || timeout_usec > t) - timeout_usec = t; - } - - do { - r = fd_wait_for_event(j->inotify_fd, POLLIN, timeout_usec); - } while (r == -EINTR); - - if (r < 0) - return r; - - return sd_journal_process(j); -} - -_public_ int sd_journal_get_cutoff_realtime_usec(sd_journal *j, uint64_t *from, uint64_t *to) { - Iterator i; - JournalFile *f; - bool first = true; - uint64_t fmin = 0, tmax = 0; - int r; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(from || to, -EINVAL); - assert_return(from != to, -EINVAL); - - ORDERED_HASHMAP_FOREACH(f, j->files, i) { - usec_t fr, t; - - r = journal_file_get_cutoff_realtime_usec(f, &fr, &t); - if (r == -ENOENT) - continue; - if (r < 0) - return r; - if (r == 0) - continue; - - if (first) { - fmin = fr; - tmax = t; - first = false; - } else { - fmin = MIN(fr, fmin); - tmax = MAX(t, tmax); - } - } - - if (from) - *from = fmin; - if (to) - *to = tmax; - - return first ? 0 : 1; -} - -_public_ int sd_journal_get_cutoff_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t *from, uint64_t *to) { - Iterator i; - JournalFile *f; - bool found = false; - int r; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(from || to, -EINVAL); - assert_return(from != to, -EINVAL); - - ORDERED_HASHMAP_FOREACH(f, j->files, i) { - usec_t fr, t; - - r = journal_file_get_cutoff_monotonic_usec(f, boot_id, &fr, &t); - if (r == -ENOENT) - continue; - if (r < 0) - return r; - if (r == 0) - continue; - - if (found) { - if (from) - *from = MIN(fr, *from); - if (to) - *to = MAX(t, *to); - } else { - if (from) - *from = fr; - if (to) - *to = t; - found = true; - } - } - - return found; -} - -void journal_print_header(sd_journal *j) { - Iterator i; - JournalFile *f; - bool newline = false; - - assert(j); - - ORDERED_HASHMAP_FOREACH(f, j->files, i) { - if (newline) - putchar('\n'); - else - newline = true; - - journal_file_print_header(f); - } -} - -_public_ int sd_journal_get_usage(sd_journal *j, uint64_t *bytes) { - Iterator i; - JournalFile *f; - uint64_t sum = 0; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(bytes, -EINVAL); - - ORDERED_HASHMAP_FOREACH(f, j->files, i) { - struct stat st; - - if (fstat(f->fd, &st) < 0) - return -errno; - - sum += (uint64_t) st.st_blocks * 512ULL; - } - - *bytes = sum; - return 0; -} - -_public_ int sd_journal_query_unique(sd_journal *j, const char *field) { - char *f; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(!isempty(field), -EINVAL); - assert_return(field_is_valid(field), -EINVAL); - - f = strdup(field); - if (!f) - return -ENOMEM; - - free(j->unique_field); - j->unique_field = f; - j->unique_file = NULL; - j->unique_offset = 0; - j->unique_file_lost = false; - - return 0; -} - -_public_ int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *l) { - size_t k; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(data, -EINVAL); - assert_return(l, -EINVAL); - assert_return(j->unique_field, -EINVAL); - - k = strlen(j->unique_field); - - if (!j->unique_file) { - if (j->unique_file_lost) - return 0; - - j->unique_file = ordered_hashmap_first(j->files); - if (!j->unique_file) - return 0; - - j->unique_offset = 0; - } - - for (;;) { - JournalFile *of; - Iterator i; - Object *o; - const void *odata; - size_t ol; - bool found; - int r; - - /* Proceed to next data object in the field's linked list */ - if (j->unique_offset == 0) { - r = journal_file_find_field_object(j->unique_file, j->unique_field, k, &o, NULL); - if (r < 0) - return r; - - j->unique_offset = r > 0 ? le64toh(o->field.head_data_offset) : 0; - } else { - r = journal_file_move_to_object(j->unique_file, OBJECT_DATA, j->unique_offset, &o); - if (r < 0) - return r; - - j->unique_offset = le64toh(o->data.next_field_offset); - } - - /* We reached the end of the list? Then start again, with the next file */ - if (j->unique_offset == 0) { - j->unique_file = ordered_hashmap_next(j->files, j->unique_file->path); - if (!j->unique_file) - return 0; - - continue; - } - - /* We do not use OBJECT_DATA context here, but OBJECT_UNUSED - * instead, so that we can look at this data object at the same - * time as one on another file */ - r = journal_file_move_to_object(j->unique_file, OBJECT_UNUSED, j->unique_offset, &o); - if (r < 0) - return r; - - /* Let's do the type check by hand, since we used 0 context above. */ - if (o->object.type != OBJECT_DATA) { - log_debug("%s:offset " OFSfmt ": object has type %d, expected %d", - j->unique_file->path, j->unique_offset, - o->object.type, OBJECT_DATA); - return -EBADMSG; - } - - r = return_data(j, j->unique_file, o, &odata, &ol); - if (r < 0) - return r; - - /* Check if we have at least the field name and "=". */ - if (ol <= k) { - log_debug("%s:offset " OFSfmt ": object has size %zu, expected at least %zu", - j->unique_file->path, j->unique_offset, - ol, k + 1); - return -EBADMSG; - } - - if (memcmp(odata, j->unique_field, k) || ((const char*) odata)[k] != '=') { - log_debug("%s:offset " OFSfmt ": object does not start with \"%s=\"", - j->unique_file->path, j->unique_offset, - j->unique_field); - return -EBADMSG; - } - - /* OK, now let's see if we already returned this data - * object by checking if it exists in the earlier - * traversed files. */ - found = false; - ORDERED_HASHMAP_FOREACH(of, j->files, i) { - Object *oo; - uint64_t op; - - if (of == j->unique_file) - break; - - /* Skip this file it didn't have any fields - * indexed */ - if (JOURNAL_HEADER_CONTAINS(of->header, n_fields) && - le64toh(of->header->n_fields) <= 0) - continue; - - r = journal_file_find_data_object_with_hash(of, odata, ol, le64toh(o->data.hash), &oo, &op); - if (r < 0) - return r; - - if (r > 0) - found = true; - } - - if (found) - continue; - - r = return_data(j, j->unique_file, o, data, l); - if (r < 0) - return r; - - return 1; - } -} - -_public_ void sd_journal_restart_unique(sd_journal *j) { - if (!j) - return; - - j->unique_file = NULL; - j->unique_offset = 0; - j->unique_file_lost = false; -} - -_public_ int sd_journal_reliable_fd(sd_journal *j) { - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - return !j->on_network; -} - -static char *lookup_field(const char *field, void *userdata) { - sd_journal *j = userdata; - const void *data; - size_t size, d; - int r; - - assert(field); - assert(j); - - r = sd_journal_get_data(j, field, &data, &size); - if (r < 0 || - size > REPLACE_VAR_MAX) - return strdup(field); - - d = strlen(field) + 1; - - return strndup((const char*) data + d, size - d); -} - -_public_ int sd_journal_get_catalog(sd_journal *j, char **ret) { - const void *data; - size_t size; - sd_id128_t id; - _cleanup_free_ char *text = NULL, *cid = NULL; - char *t; - int r; - - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(ret, -EINVAL); - - r = sd_journal_get_data(j, "MESSAGE_ID", &data, &size); - if (r < 0) - return r; - - cid = strndup((const char*) data + 11, size - 11); - if (!cid) - return -ENOMEM; - - r = sd_id128_from_string(cid, &id); - if (r < 0) - return r; - - r = catalog_get(CATALOG_DATABASE, id, &text); - if (r < 0) - return r; - - t = replace_var(text, lookup_field, j); - if (!t) - return -ENOMEM; - - *ret = t; - return 0; -} - -_public_ int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret) { - assert_return(ret, -EINVAL); - - return catalog_get(CATALOG_DATABASE, id, ret); -} - -_public_ int sd_journal_set_data_threshold(sd_journal *j, size_t sz) { - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - - j->data_threshold = sz; - return 0; -} - -_public_ int sd_journal_get_data_threshold(sd_journal *j, size_t *sz) { - assert_return(j, -EINVAL); - assert_return(!journal_pid_changed(j), -ECHILD); - assert_return(sz, -EINVAL); - - *sz = j->data_threshold; - return 0; -} diff --git a/src/journal/stacktrace.c b/src/journal/stacktrace.c deleted file mode 100644 index 6b9d2729f5..0000000000 --- a/src/journal/stacktrace.c +++ /dev/null @@ -1,200 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <dwarf.h> -#include <elfutils/libdwfl.h> - -#include "util.h" -#include "macro.h" -#include "stacktrace.h" - -#define FRAMES_MAX 64 -#define THREADS_MAX 64 - -struct stack_context { - FILE *f; - Dwfl *dwfl; - Elf *elf; - unsigned n_thread; - unsigned n_frame; -}; - -static int frame_callback(Dwfl_Frame *frame, void *userdata) { - struct stack_context *c = userdata; - Dwarf_Addr pc, pc_adjusted, bias = 0; - _cleanup_free_ Dwarf_Die *scopes = NULL; - const char *fname = NULL, *symbol = NULL; - Dwfl_Module *module; - bool is_activation; - - assert(frame); - assert(c); - - if (c->n_frame >= FRAMES_MAX) - return DWARF_CB_ABORT; - - if (!dwfl_frame_pc(frame, &pc, &is_activation)) - return DWARF_CB_ABORT; - - pc_adjusted = pc - (is_activation ? 0 : 1); - - module = dwfl_addrmodule(c->dwfl, pc_adjusted); - if (module) { - Dwarf_Die *s, *cudie; - int n; - - cudie = dwfl_module_addrdie(module, pc_adjusted, &bias); - if (cudie) { - n = dwarf_getscopes(cudie, pc_adjusted - bias, &scopes); - for (s = scopes; s < scopes + n; s++) { - if (IN_SET(dwarf_tag(s), DW_TAG_subprogram, DW_TAG_inlined_subroutine, DW_TAG_entry_point)) { - Dwarf_Attribute *a, space; - - a = dwarf_attr_integrate(s, DW_AT_MIPS_linkage_name, &space); - if (!a) - a = dwarf_attr_integrate(s, DW_AT_linkage_name, &space); - if (a) - symbol = dwarf_formstring(a); - if (!symbol) - symbol = dwarf_diename(s); - - if (symbol) - break; - } - } - } - - if (!symbol) - symbol = dwfl_module_addrname(module, pc_adjusted); - - fname = dwfl_module_info(module, NULL, NULL, NULL, NULL, NULL, NULL, NULL); - } - - fprintf(c->f, "#%-2u 0x%016" PRIx64 " %s (%s)\n", c->n_frame, (uint64_t) pc, strna(symbol), strna(fname)); - c->n_frame ++; - - return DWARF_CB_OK; -} - -static int thread_callback(Dwfl_Thread *thread, void *userdata) { - struct stack_context *c = userdata; - pid_t tid; - - assert(thread); - assert(c); - - if (c->n_thread >= THREADS_MAX) - return DWARF_CB_ABORT; - - if (c->n_thread != 0) - fputc('\n', c->f); - - c->n_frame = 0; - - tid = dwfl_thread_tid(thread); - fprintf(c->f, "Stack trace of thread " PID_FMT ":\n", tid); - - if (dwfl_thread_getframes(thread, frame_callback, c) < 0) - return DWARF_CB_ABORT; - - c->n_thread ++; - - return DWARF_CB_OK; -} - -int coredump_make_stack_trace(int fd, const char *executable, char **ret) { - - static const Dwfl_Callbacks callbacks = { - .find_elf = dwfl_build_id_find_elf, - .find_debuginfo = dwfl_standard_find_debuginfo, - }; - - struct stack_context c = {}; - char *buf = NULL; - size_t sz = 0; - int r; - - assert(fd >= 0); - assert(ret); - - if (lseek(fd, 0, SEEK_SET) == (off_t) -1) - return -errno; - - c.f = open_memstream(&buf, &sz); - if (!c.f) - return -ENOMEM; - - elf_version(EV_CURRENT); - - c.elf = elf_begin(fd, ELF_C_READ_MMAP, NULL); - if (!c.elf) { - r = -EINVAL; - goto finish; - } - - c.dwfl = dwfl_begin(&callbacks); - if (!c.dwfl) { - r = -EINVAL; - goto finish; - } - - if (dwfl_core_file_report(c.dwfl, c.elf, executable) < 0) { - r = -EINVAL; - goto finish; - } - - if (dwfl_report_end(c.dwfl, NULL, NULL) != 0) { - r = -EINVAL; - goto finish; - } - - if (dwfl_core_file_attach(c.dwfl, c.elf) < 0) { - r = -EINVAL; - goto finish; - } - - if (dwfl_getthreads(c.dwfl, thread_callback, &c) < 0) { - r = -EINVAL; - goto finish; - } - - fclose(c.f); - c.f = NULL; - - *ret = buf; - buf = NULL; - - r = 0; - -finish: - if (c.dwfl) - dwfl_end(c.dwfl); - - if (c.elf) - elf_end(c.elf); - - if (c.f) - fclose(c.f); - - free(buf); - - return r; -} diff --git a/src/journal/stacktrace.h b/src/journal/stacktrace.h deleted file mode 100644 index 189e5c4597..0000000000 --- a/src/journal/stacktrace.h +++ /dev/null @@ -1,24 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -int coredump_make_stack_trace(int fd, const char *executable, char **ret); diff --git a/src/journal/test-catalog.c b/src/journal/test-catalog.c deleted file mode 100644 index dbfdea609d..0000000000 --- a/src/journal/test-catalog.c +++ /dev/null @@ -1,181 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - Copyright 2013 Zbigniew JÄ™drzejewski-Szmek - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <locale.h> -#include <unistd.h> -#include <errno.h> -#include <fcntl.h> - -#include "util.h" -#include "log.h" -#include "macro.h" -#include "sd-messages.h" -#include "catalog.h" - -static const char *catalog_dirs[] = { - CATALOG_DIR, - NULL, -}; - -static const char *no_catalog_dirs[] = { - "/bin/hopefully/with/no/catalog", - NULL -}; - -static void test_import(Hashmap *h, struct strbuf *sb, - const char* contents, ssize_t size, int code) { - int r; - char name[] = "/tmp/test-catalog.XXXXXX"; - _cleanup_close_ int fd; - - fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC); - assert_se(fd >= 0); - assert_se(write(fd, contents, size) == size); - - r = catalog_import_file(h, sb, name); - assert_se(r == code); - - unlink(name); -} - -static void test_catalog_importing(void) { - Hashmap *h; - struct strbuf *sb; - - assert_se(h = hashmap_new(&catalog_hash_ops)); - assert_se(sb = strbuf_new()); - -#define BUF "xxx" - test_import(h, sb, BUF, sizeof(BUF), -EINVAL); -#undef BUF - assert_se(hashmap_isempty(h)); - log_debug("----------------------------------------"); - -#define BUF \ -"-- 0027229ca0644181a76c4e92458afaff dededededededededededededededede\n" \ -"Subject: message\n" \ -"\n" \ -"payload\n" - test_import(h, sb, BUF, sizeof(BUF), -EINVAL); -#undef BUF - - log_debug("----------------------------------------"); - -#define BUF \ -"-- 0027229ca0644181a76c4e92458afaff dededededededededededededededed\n" \ -"Subject: message\n" \ -"\n" \ -"payload\n" - test_import(h, sb, BUF, sizeof(BUF), 0); -#undef BUF - - assert_se(hashmap_size(h) == 1); - - log_debug("----------------------------------------"); - - hashmap_free_free(h); - strbuf_cleanup(sb); -} - - -static const char* database = NULL; - -static void test_catalog_update(void) { - static char name[] = "/tmp/test-catalog.XXXXXX"; - int r; - - r = mkostemp_safe(name, O_RDWR|O_CLOEXEC); - assert_se(r >= 0); - - database = name; - - /* Test what happens if there are no files. */ - r = catalog_update(database, NULL, NULL); - assert_se(r >= 0); - - /* Test what happens if there are no files in the directory. */ - r = catalog_update(database, NULL, no_catalog_dirs); - assert_se(r >= 0); - - /* Make sure that we at least have some files loaded or the - catalog_list below will fail. */ - r = catalog_update(database, NULL, catalog_dirs); - assert_se(r >= 0); -} - -static void test_catalog_file_lang(void) { - _cleanup_free_ char *lang = NULL, *lang2 = NULL, *lang3 = NULL, *lang4 = NULL; - - assert_se(catalog_file_lang("systemd.de_DE.catalog", &lang) == 1); - assert_se(streq(lang, "de_DE")); - - assert_se(catalog_file_lang("systemd..catalog", &lang2) == 0); - assert_se(lang2 == NULL); - - assert_se(catalog_file_lang("systemd.fr.catalog", &lang2) == 1); - assert_se(streq(lang2, "fr")); - - assert_se(catalog_file_lang("systemd.fr.catalog.gz", &lang3) == 0); - assert_se(lang3 == NULL); - - assert_se(catalog_file_lang("systemd.01234567890123456789012345678901.catalog", &lang3) == 0); - assert_se(lang3 == NULL); - - assert_se(catalog_file_lang("systemd.0123456789012345678901234567890.catalog", &lang3) == 1); - assert_se(streq(lang3, "0123456789012345678901234567890")); - - assert_se(catalog_file_lang("/x/y/systemd.catalog", &lang4) == 0); - assert_se(lang4 == NULL); - - assert_se(catalog_file_lang("/x/y/systemd.ru_RU.catalog", &lang4) == 1); - assert_se(streq(lang4, "ru_RU")); -} - -int main(int argc, char *argv[]) { - _cleanup_free_ char *text = NULL; - int r; - - setlocale(LC_ALL, "de_DE.UTF-8"); - - log_parse_environment(); - log_open(); - - test_catalog_file_lang(); - - test_catalog_importing(); - - test_catalog_update(); - - r = catalog_list(stdout, database, true); - assert_se(r >= 0); - - r = catalog_list(stdout, database, false); - assert_se(r >= 0); - - assert_se(catalog_get(database, SD_MESSAGE_COREDUMP, &text) >= 0); - printf(">>>%s<<<\n", text); - - if (database) - unlink(database); - - return 0; -} diff --git a/src/journal/test-compress-benchmark.c b/src/journal/test-compress-benchmark.c deleted file mode 100644 index c8e5b76c6c..0000000000 --- a/src/journal/test-compress-benchmark.c +++ /dev/null @@ -1,113 +0,0 @@ -/*** - This file is part of systemd - - Copyright 2014 Zbigniew JÄ™drzejewski-Szmek - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "compress.h" -#include "util.h" -#include "macro.h" - -typedef int (compress_t)(const void *src, uint64_t src_size, void *dst, size_t *dst_size); -typedef int (decompress_t)(const void *src, uint64_t src_size, - void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max); - -#define MAX_SIZE (1024*1024LU) - -static char* make_buf(size_t count) { - char *buf; - size_t i; - - buf = malloc(count); - assert_se(buf); - - for (i = 0; i < count; i++) - buf[i] = 'a' + i % ('z' - 'a' + 1); - - return buf; -} - -static void test_compress_decompress(const char* label, - compress_t compress, decompress_t decompress) { - usec_t n, n2 = 0; - float dt; - - _cleanup_free_ char *text, *buf; - _cleanup_free_ void *buf2 = NULL; - size_t buf2_allocated = 0; - size_t skipped = 0, compressed = 0, total = 0; - - text = make_buf(MAX_SIZE); - buf = calloc(MAX_SIZE + 1, 1); - assert_se(text && buf); - - n = now(CLOCK_MONOTONIC); - - for (size_t i = 1; i <= MAX_SIZE; i += (i < 2048 ? 1 : 217)) { - size_t j = 0, k = 0; - int r; - - r = compress(text, i, buf, &j); - /* assume compression must be successful except for small inputs */ - assert_se(r == 0 || (i < 2048 && r == -ENOBUFS)); - /* check for overwrites */ - assert_se(buf[i] == 0); - if (r != 0) { - skipped += i; - continue; - } - - assert_se(j > 0); - if (j >= i) - log_error("%s \"compressed\" %zu -> %zu", label, i, j); - - r = decompress(buf, j, &buf2, &buf2_allocated, &k, 0); - assert_se(r == 0); - assert_se(buf2_allocated >= k); - assert_se(k == i); - - assert_se(memcmp(text, buf2, i) == 0); - - total += i; - compressed += j; - - n2 = now(CLOCK_MONOTONIC); - if (n2 - n > 60 * USEC_PER_SEC) - break; - } - - dt = (n2-n) / 1e6; - - log_info("%s: compressed & decompressed %zu bytes in %.2fs (%.2fMiB/s), " - "mean compresion %.2f%%, skipped %zu bytes", - label, total, dt, - total / 1024. / 1024 / dt, - 100 - compressed * 100. / total, - skipped); -} - -int main(int argc, char *argv[]) { - - log_set_max_level(LOG_DEBUG); - -#ifdef HAVE_XZ - test_compress_decompress("XZ", compress_blob_xz, decompress_blob_xz); -#endif -#ifdef HAVE_LZ4 - test_compress_decompress("LZ4", compress_blob_lz4, decompress_blob_lz4); -#endif - return 0; -} diff --git a/src/journal/test-compress.c b/src/journal/test-compress.c deleted file mode 100644 index ae41c0c4c7..0000000000 --- a/src/journal/test-compress.c +++ /dev/null @@ -1,246 +0,0 @@ -/*** - This file is part of systemd - - Copyright 2014 Ronny Chevalier - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "compress.h" -#include "util.h" -#include "macro.h" - -#ifdef HAVE_XZ -# define XZ_OK 0 -#else -# define XZ_OK -EPROTONOSUPPORT -#endif - -#ifdef HAVE_LZ4 -# define LZ4_OK 0 -#else -# define LZ4_OK -EPROTONOSUPPORT -#endif - -typedef int (compress_blob_t)(const void *src, uint64_t src_size, - void *dst, size_t *dst_size); -typedef int (decompress_blob_t)(const void *src, uint64_t src_size, - void **dst, size_t *dst_alloc_size, - size_t* dst_size, size_t dst_max); -typedef int (decompress_sw_t)(const void *src, uint64_t src_size, - void **buffer, size_t *buffer_size, - const void *prefix, size_t prefix_len, - uint8_t extra); - -typedef int (compress_stream_t)(int fdf, int fdt, off_t max_bytes); -typedef int (decompress_stream_t)(int fdf, int fdt, off_t max_size); - -static void test_compress_decompress(int compression, - compress_blob_t compress, - decompress_blob_t decompress, - const char *data, - size_t data_len, - bool may_fail) { - char compressed[512]; - size_t csize = 512; - size_t usize = 0; - _cleanup_free_ char *decompressed = NULL; - int r; - - log_info("/* testing %s %s blob compression/decompression */", - object_compressed_to_string(compression), data); - - r = compress(data, data_len, compressed, &csize); - if (r == -ENOBUFS) { - log_info_errno(r, "compression failed: %m"); - assert_se(may_fail); - } else { - assert_se(r == 0); - r = decompress(compressed, csize, - (void **) &decompressed, &usize, &csize, 0); - assert_se(r == 0); - assert_se(decompressed); - assert_se(memcmp(decompressed, data, data_len) == 0); - } - - r = decompress("garbage", 7, - (void **) &decompressed, &usize, &csize, 0); - assert_se(r < 0); - - /* make sure to have the minimal lz4 compressed size */ - r = decompress("00000000\1g", 9, - (void **) &decompressed, &usize, &csize, 0); - assert_se(r < 0); - - r = decompress("\100000000g", 9, - (void **) &decompressed, &usize, &csize, 0); - assert_se(r < 0); - - memzero(decompressed, usize); -} - -static void test_decompress_startswith(int compression, - compress_blob_t compress, - decompress_sw_t decompress_sw, - const char *data, - size_t data_len, - bool may_fail) { - - char compressed[512]; - size_t csize = 512; - size_t usize = 0; - _cleanup_free_ char *decompressed = NULL; - int r; - - log_info("/* testing decompress_startswith with %s on %s text*/", - object_compressed_to_string(compression), data); - - r = compress(data, data_len, compressed, &csize); - if (r == -ENOBUFS) { - log_info_errno(r, "compression failed: %m"); - assert_se(may_fail); - return; - } - assert_se(r == 0); - - assert_se(decompress_sw(compressed, - csize, - (void **) &decompressed, - &usize, - data, strlen(data), '\0') > 0); - assert_se(decompress_sw(compressed, - csize, - (void **) &decompressed, - &usize, - data, strlen(data), 'w') == 0); - assert_se(decompress_sw(compressed, - csize, - (void **) &decompressed, - &usize, - "barbarbar", 9, ' ') == 0); - assert_se(decompress_sw(compressed, - csize, - (void **) &decompressed, - &usize, - data, strlen(data), '\0') > 0); -} - -static void test_compress_stream(int compression, - const char* cat, - compress_stream_t compress, - decompress_stream_t decompress, - const char *srcfile) { - - _cleanup_close_ int src = -1, dst = -1, dst2 = -1; - char pattern[] = "/tmp/systemd-test.xz.XXXXXX", - pattern2[] = "/tmp/systemd-test.xz.XXXXXX"; - int r; - _cleanup_free_ char *cmd = NULL, *cmd2; - struct stat st = {}; - - log_debug("/* testing %s compression */", - object_compressed_to_string(compression)); - - log_debug("/* create source from %s */", srcfile); - - assert_se((src = open(srcfile, O_RDONLY|O_CLOEXEC)) >= 0); - - log_debug("/* test compression */"); - - assert_se((dst = mkostemp_safe(pattern, O_RDWR|O_CLOEXEC)) >= 0); - - assert_se(compress(src, dst, -1) == 0); - - if (cat) { - assert_se(asprintf(&cmd, "%s %s | diff %s -", cat, pattern, srcfile) > 0); - assert_se(system(cmd) == 0); - } - - log_debug("/* test decompression */"); - - assert_se((dst2 = mkostemp_safe(pattern2, O_RDWR|O_CLOEXEC)) >= 0); - - assert_se(stat(srcfile, &st) == 0); - - assert_se(lseek(dst, 0, SEEK_SET) == 0); - r = decompress(dst, dst2, st.st_size); - assert_se(r == 0); - - assert_se(asprintf(&cmd2, "diff %s %s", srcfile, pattern2) > 0); - assert_se(system(cmd2) == 0); - - log_debug("/* test faulty decompression */"); - - assert_se(lseek(dst, 1, SEEK_SET) == 1); - r = decompress(dst, dst2, st.st_size); - assert_se(r == -EBADMSG); - - assert_se(lseek(dst, 0, SEEK_SET) == 0); - assert_se(lseek(dst2, 0, SEEK_SET) == 0); - r = decompress(dst, dst2, st.st_size - 1); - assert_se(r == -EFBIG); - - assert_se(unlink(pattern) == 0); - assert_se(unlink(pattern2) == 0); -} - -int main(int argc, char *argv[]) { - const char text[] = - "text\0foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF" - "foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF"; - - char data[512] = "random\0"; - - log_set_max_level(LOG_DEBUG); - - random_bytes(data + 7, sizeof(data) - 7); - -#ifdef HAVE_XZ - test_compress_decompress(OBJECT_COMPRESSED_XZ, compress_blob_xz, decompress_blob_xz, - text, sizeof(text), false); - test_compress_decompress(OBJECT_COMPRESSED_XZ, compress_blob_xz, decompress_blob_xz, - data, sizeof(data), true); - test_decompress_startswith(OBJECT_COMPRESSED_XZ, - compress_blob_xz, decompress_startswith_xz, - text, sizeof(text), false); - test_decompress_startswith(OBJECT_COMPRESSED_XZ, - compress_blob_xz, decompress_startswith_xz, - data, sizeof(data), true); - test_compress_stream(OBJECT_COMPRESSED_XZ, "xzcat", - compress_stream_xz, decompress_stream_xz, argv[0]); -#else - log_info("/* XZ test skipped */"); -#endif - -#ifdef HAVE_LZ4 - test_compress_decompress(OBJECT_COMPRESSED_LZ4, compress_blob_lz4, decompress_blob_lz4, - text, sizeof(text), false); - test_compress_decompress(OBJECT_COMPRESSED_LZ4, compress_blob_lz4, decompress_blob_lz4, - data, sizeof(data), true); - test_decompress_startswith(OBJECT_COMPRESSED_LZ4, - compress_blob_lz4, decompress_startswith_lz4, - text, sizeof(text), false); - test_decompress_startswith(OBJECT_COMPRESSED_LZ4, - compress_blob_lz4, decompress_startswith_lz4, - data, sizeof(data), true); - - /* Produced stream is not compatible with lz4 binary, skip lz4cat check. */ - test_compress_stream(OBJECT_COMPRESSED_LZ4, NULL, - compress_stream_lz4, decompress_stream_lz4, argv[0]); -#else - log_info("/* LZ4 test skipped */"); -#endif - - return 0; -} diff --git a/src/journal/test-coredump-vacuum.c b/src/journal/test-coredump-vacuum.c deleted file mode 100644 index a4dd00125d..0000000000 --- a/src/journal/test-coredump-vacuum.c +++ /dev/null @@ -1,32 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Zbigniew JÄ™drzejewski-Szmek - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdlib.h> - -#include "coredump-vacuum.h" - -int main(int argc, char *argv[]) { - - if (coredump_vacuum(-1, (off_t) -1, 70 * 1024) < 0) - return EXIT_FAILURE; - - return EXIT_SUCCESS; -} diff --git a/src/journal/test-journal-enum.c b/src/journal/test-journal-enum.c deleted file mode 100644 index cde2025ae9..0000000000 --- a/src/journal/test-journal-enum.c +++ /dev/null @@ -1,54 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdio.h> - -#include "log.h" -#include "sd-journal.h" -#include "macro.h" -#include "journal-internal.h" - -int main(int argc, char *argv[]) { - unsigned n = 0; - _cleanup_journal_close_ sd_journal*j = NULL; - - log_set_max_level(LOG_DEBUG); - - assert_se(sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY) >= 0); - - assert_se(sd_journal_add_match(j, "_TRANSPORT=syslog", 0) >= 0); - assert_se(sd_journal_add_match(j, "_UID=0", 0) >= 0); - - SD_JOURNAL_FOREACH_BACKWARDS(j) { - const void *d; - size_t l; - - assert_se(sd_journal_get_data(j, "MESSAGE", &d, &l) >= 0); - - printf("%.*s\n", (int) l, (char*) d); - - n ++; - if (n >= 10) - break; - } - - return 0; -} diff --git a/src/journal/test-journal-flush.c b/src/journal/test-journal-flush.c deleted file mode 100644 index 914ca0b4d1..0000000000 --- a/src/journal/test-journal-flush.c +++ /dev/null @@ -1,74 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2013 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <fcntl.h> - -#include "sd-journal.h" -#include "macro.h" -#include "journal-file.h" -#include "journal-internal.h" - -int main(int argc, char *argv[]) { - - char dn[] = "/var/tmp/test-journal-flush.XXXXXX", *fn; - JournalFile *new_journal = NULL; - sd_journal *j = NULL; - unsigned n = 0; - int r; - - assert_se(mkdtemp(dn)); - fn = strappend(dn, "/test.journal"); - - r = journal_file_open(fn, O_CREAT|O_RDWR, 0644, false, false, NULL, NULL, NULL, &new_journal); - assert_se(r >= 0); - - r = sd_journal_open(&j, 0); - assert_se(r >= 0); - - sd_journal_set_data_threshold(j, 0); - - SD_JOURNAL_FOREACH(j) { - Object *o; - JournalFile *f; - - f = j->current_file; - assert_se(f && f->current_offset > 0); - - r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); - assert_se(r >= 0); - - r = journal_file_copy_entry(f, new_journal, o, f->current_offset, NULL, NULL, NULL); - assert_se(r >= 0); - - n++; - if (n > 10000) - break; - } - - sd_journal_close(j); - - journal_file_close(new_journal); - - unlink(fn); - assert_se(rmdir(dn) == 0); - - return 0; -} diff --git a/src/journal/test-journal-init.c b/src/journal/test-journal-init.c deleted file mode 100644 index 11fb150fe8..0000000000 --- a/src/journal/test-journal-init.c +++ /dev/null @@ -1,64 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2013 Zbigniew JÄ™drzejewski-Szmek - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "systemd/sd-journal.h" - -#include "log.h" -#include "util.h" - -int main(int argc, char *argv[]) { - sd_journal *j; - int r, i, I = 100; - char t[] = "/tmp/journal-stream-XXXXXX"; - - log_set_max_level(LOG_DEBUG); - - if (argc >= 2) { - r = safe_atoi(argv[1], &I); - if (r < 0) - log_info("Could not parse loop count argument. Using default."); - } - - log_info("Running %d loops", I); - - assert_se(mkdtemp(t)); - - for (i = 0; i < I; i++) { - r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY); - assert_se(r == 0); - - sd_journal_close(j); - - r = sd_journal_open_directory(&j, t, 0); - assert_se(r == 0); - - sd_journal_close(j); - - j = NULL; - r = sd_journal_open_directory(&j, t, SD_JOURNAL_LOCAL_ONLY); - assert_se(r == -EINVAL); - assert_se(j == NULL); - } - - assert_se(rm_rf_dangerous(t, false, true, false) >= 0); - - return 0; -} diff --git a/src/journal/test-journal-interleaving.c b/src/journal/test-journal-interleaving.c deleted file mode 100644 index 3e6141771c..0000000000 --- a/src/journal/test-journal-interleaving.c +++ /dev/null @@ -1,297 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2013 Marius Vollmer - Copyright 2013 Zbigniew JÄ™drzejewski-Szmek - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> -#include <fcntl.h> - -#include "systemd/sd-journal.h" - -#include "journal-file.h" -#include "journal-vacuum.h" -#include "util.h" -#include "log.h" - -/* This program tests skipping around in a multi-file journal. - */ - -static bool arg_keep = false; - -noreturn static void log_assert_errno(const char *text, int eno, const char *file, int line, const char *func) { - log_internal(LOG_CRIT, 0, file, line, func, - "'%s' failed at %s:%u (%s): %s.", - text, file, line, func, strerror(eno)); - abort(); -} - -#define assert_ret(expr) \ - do { \ - int _r_ = (expr); \ - if (_unlikely_(_r_ < 0)) \ - log_assert_errno(#expr, -_r_, __FILE__, __LINE__, __PRETTY_FUNCTION__); \ - } while (false) - -static JournalFile *test_open(const char *name) { - JournalFile *f; - assert_ret(journal_file_open(name, O_RDWR|O_CREAT, 0644, true, false, NULL, NULL, NULL, &f)); - return f; -} - -static void test_close(JournalFile *f) { - journal_file_close (f); -} - -static void append_number(JournalFile *f, int n, uint64_t *seqnum) { - char *p; - dual_timestamp ts; - struct iovec iovec[1]; - - dual_timestamp_get(&ts); - - assert_se(asprintf(&p, "NUMBER=%d", n) >= 0); - iovec[0].iov_base = p; - iovec[0].iov_len = strlen(p); - assert_ret(journal_file_append_entry(f, &ts, iovec, 1, seqnum, NULL, NULL)); - free(p); -} - -static void test_check_number (sd_journal *j, int n) { - const void *d; - _cleanup_free_ char *k; - size_t l; - int x; - - assert_ret(sd_journal_get_data(j, "NUMBER", &d, &l)); - assert_se(k = strndup(d, l)); - printf("%s\n", k); - - assert_se(safe_atoi(k + 7, &x) >= 0); - assert_se(n == x); -} - -static void test_check_numbers_down (sd_journal *j, int count) { - int i; - - for (i = 1; i <= count; i++) { - int r; - test_check_number(j, i); - assert_ret(r = sd_journal_next(j)); - if (i == count) - assert_se(r == 0); - else - assert_se(r == 1); - } - -} - -static void test_check_numbers_up (sd_journal *j, int count) { - for (int i = count; i >= 1; i--) { - int r; - test_check_number(j, i); - assert_ret(r = sd_journal_previous(j)); - if (i == 1) - assert_se(r == 0); - else - assert_se(r == 1); - } - -} - -static void setup_sequential(void) { - JournalFile *one, *two; - one = test_open("one.journal"); - two = test_open("two.journal"); - append_number(one, 1, NULL); - append_number(one, 2, NULL); - append_number(two, 3, NULL); - append_number(two, 4, NULL); - test_close(one); - test_close(two); -} - -static void setup_interleaved(void) { - JournalFile *one, *two; - one = test_open("one.journal"); - two = test_open("two.journal"); - append_number(one, 1, NULL); - append_number(two, 2, NULL); - append_number(one, 3, NULL); - append_number(two, 4, NULL); - test_close(one); - test_close(two); -} - -static void test_skip(void (*setup)(void)) { - char t[] = "/tmp/journal-skip-XXXXXX"; - sd_journal *j; - int r; - - assert_se(mkdtemp(t)); - assert_se(chdir(t) >= 0); - - setup(); - - /* Seek to head, iterate down. - */ - assert_ret(sd_journal_open_directory(&j, t, 0)); - assert_ret(sd_journal_seek_head(j)); - assert_ret(sd_journal_next(j)); - test_check_numbers_down(j, 4); - sd_journal_close(j); - - /* Seek to tail, iterate up. - */ - assert_ret(sd_journal_open_directory(&j, t, 0)); - assert_ret(sd_journal_seek_tail(j)); - assert_ret(sd_journal_previous(j)); - test_check_numbers_up(j, 4); - sd_journal_close(j); - - /* Seek to tail, skip to head, iterate down. - */ - assert_ret(sd_journal_open_directory(&j, t, 0)); - assert_ret(sd_journal_seek_tail(j)); - assert_ret(r = sd_journal_previous_skip(j, 4)); - assert_se(r == 4); - test_check_numbers_down(j, 4); - sd_journal_close(j); - - /* Seek to head, skip to tail, iterate up. - */ - assert_ret(sd_journal_open_directory(&j, t, 0)); - assert_ret(sd_journal_seek_head(j)); - assert_ret(r = sd_journal_next_skip(j, 4)); - assert_se(r == 4); - test_check_numbers_up(j, 4); - sd_journal_close(j); - - log_info("Done..."); - - if (arg_keep) - log_info("Not removing %s", t); - else { - journal_directory_vacuum(".", 3000000, 0, NULL, true); - - assert_se(rm_rf_dangerous(t, false, true, false) >= 0); - } - - puts("------------------------------------------------------------"); -} - -static void test_sequence_numbers(void) { - - char t[] = "/tmp/journal-seq-XXXXXX"; - JournalFile *one, *two; - uint64_t seqnum = 0; - sd_id128_t seqnum_id; - - assert_se(mkdtemp(t)); - assert_se(chdir(t) >= 0); - - assert_se(journal_file_open("one.journal", O_RDWR|O_CREAT, 0644, - true, false, NULL, NULL, NULL, &one) == 0); - - append_number(one, 1, &seqnum); - printf("seqnum=%"PRIu64"\n", seqnum); - assert_se(seqnum == 1); - append_number(one, 2, &seqnum); - printf("seqnum=%"PRIu64"\n", seqnum); - assert_se(seqnum == 2); - - assert_se(one->header->state == STATE_ONLINE); - assert_se(!sd_id128_equal(one->header->file_id, one->header->machine_id)); - assert_se(!sd_id128_equal(one->header->file_id, one->header->boot_id)); - assert_se(sd_id128_equal(one->header->file_id, one->header->seqnum_id)); - - memcpy(&seqnum_id, &one->header->seqnum_id, sizeof(sd_id128_t)); - - assert_se(journal_file_open("two.journal", O_RDWR|O_CREAT, 0644, - true, false, NULL, NULL, one, &two) == 0); - - assert_se(two->header->state == STATE_ONLINE); - assert_se(!sd_id128_equal(two->header->file_id, one->header->file_id)); - assert_se(sd_id128_equal(one->header->machine_id, one->header->machine_id)); - assert_se(sd_id128_equal(one->header->boot_id, one->header->boot_id)); - assert_se(sd_id128_equal(one->header->seqnum_id, one->header->seqnum_id)); - - append_number(two, 3, &seqnum); - printf("seqnum=%"PRIu64"\n", seqnum); - assert_se(seqnum == 3); - append_number(two, 4, &seqnum); - printf("seqnum=%"PRIu64"\n", seqnum); - assert_se(seqnum == 4); - - test_close(two); - - append_number(one, 5, &seqnum); - printf("seqnum=%"PRIu64"\n", seqnum); - assert_se(seqnum == 5); - - append_number(one, 6, &seqnum); - printf("seqnum=%"PRIu64"\n", seqnum); - assert_se(seqnum == 6); - - test_close(one); - - /* restart server */ - seqnum = 0; - - assert_se(journal_file_open("two.journal", O_RDWR, 0, - true, false, NULL, NULL, NULL, &two) == 0); - - assert_se(sd_id128_equal(two->header->seqnum_id, seqnum_id)); - - append_number(two, 7, &seqnum); - printf("seqnum=%"PRIu64"\n", seqnum); - assert_se(seqnum == 5); - - /* So..., here we have the same seqnum in two files with the - * same seqnum_id. */ - - test_close(two); - - log_info("Done..."); - - if (arg_keep) - log_info("Not removing %s", t); - else { - journal_directory_vacuum(".", 3000000, 0, NULL, true); - - assert_se(rm_rf_dangerous(t, false, true, false) >= 0); - } -} - -int main(int argc, char *argv[]) { - log_set_max_level(LOG_DEBUG); - - /* journal_file_open requires a valid machine id */ - if (access("/etc/machine-id", F_OK) != 0) - return EXIT_TEST_SKIP; - - arg_keep = argc > 1; - - test_skip(setup_sequential); - test_skip(setup_interleaved); - - test_sequence_numbers(); - - return 0; -} diff --git a/src/journal/test-journal-match.c b/src/journal/test-journal-match.c deleted file mode 100644 index a3187053c9..0000000000 --- a/src/journal/test-journal-match.c +++ /dev/null @@ -1,76 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdio.h> - -#include "systemd/sd-journal.h" - -#include "journal-internal.h" -#include "util.h" -#include "log.h" - -int main(int argc, char *argv[]) { - _cleanup_journal_close_ sd_journal*j; - _cleanup_free_ char *t; - - log_set_max_level(LOG_DEBUG); - - assert_se(sd_journal_open(&j, 0) >= 0); - - assert_se(sd_journal_add_match(j, "foobar", 0) < 0); - assert_se(sd_journal_add_match(j, "foobar=waldo", 0) < 0); - assert_se(sd_journal_add_match(j, "", 0) < 0); - assert_se(sd_journal_add_match(j, "=", 0) < 0); - assert_se(sd_journal_add_match(j, "=xxxxx", 0) < 0); - assert_se(sd_journal_add_match(j, "HALLO=WALDO", 0) >= 0); - assert_se(sd_journal_add_match(j, "QUUX=mmmm", 0) >= 0); - assert_se(sd_journal_add_match(j, "QUUX=xxxxx", 0) >= 0); - assert_se(sd_journal_add_match(j, "HALLO=", 0) >= 0); - assert_se(sd_journal_add_match(j, "QUUX=xxxxx", 0) >= 0); - assert_se(sd_journal_add_match(j, "QUUX=yyyyy", 0) >= 0); - assert_se(sd_journal_add_match(j, "PIFF=paff", 0) >= 0); - - assert_se(sd_journal_add_disjunction(j) >= 0); - - assert_se(sd_journal_add_match(j, "ONE=one", 0) >= 0); - assert_se(sd_journal_add_match(j, "ONE=two", 0) >= 0); - assert_se(sd_journal_add_match(j, "TWO=two", 0) >= 0); - - assert_se(sd_journal_add_conjunction(j) >= 0); - - assert_se(sd_journal_add_match(j, "L4_1=yes", 0) >= 0); - assert_se(sd_journal_add_match(j, "L4_1=ok", 0) >= 0); - assert_se(sd_journal_add_match(j, "L4_2=yes", 0) >= 0); - assert_se(sd_journal_add_match(j, "L4_2=ok", 0) >= 0); - - assert_se(sd_journal_add_disjunction(j) >= 0); - - assert_se(sd_journal_add_match(j, "L3=yes", 0) >= 0); - assert_se(sd_journal_add_match(j, "L3=ok", 0) >= 0); - - assert_se(t = journal_make_match_string(j)); - - printf("resulting match expression is: %s\n", t); - - assert_se(streq(t, "(((L3=ok OR L3=yes) OR ((L4_2=ok OR L4_2=yes) AND (L4_1=ok OR L4_1=yes))) AND ((TWO=two AND (ONE=two OR ONE=one)) OR (PIFF=paff AND (QUUX=yyyyy OR QUUX=xxxxx OR QUUX=mmmm) AND (HALLO= OR HALLO=WALDO))))")); - - return 0; -} diff --git a/src/journal/test-journal-send.c b/src/journal/test-journal-send.c deleted file mode 100644 index 81ca47ed8d..0000000000 --- a/src/journal/test-journal-send.c +++ /dev/null @@ -1,78 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "systemd/sd-journal.h" -#include <stdlib.h> -#include <unistd.h> - -#include "log.h" - -int main(int argc, char *argv[]) { - char huge[4096*1024]; - - log_set_max_level(LOG_DEBUG); - - sd_journal_print(LOG_INFO, "piepapo"); - - sd_journal_send("MESSAGE=foobar", - "VALUE=%i", 7, - NULL); - - errno = ENOENT; - sd_journal_perror("Foobar"); - - sd_journal_perror(""); - - memset(huge, 'x', sizeof(huge)); - memcpy(huge, "HUGE=", 5); - char_array_0(huge); - - sd_journal_send("MESSAGE=Huge field attached", - huge, - NULL); - - sd_journal_send("MESSAGE=uiui", - "VALUE=A", - "VALUE=B", - "VALUE=C", - "SINGLETON=1", - "OTHERVALUE=X", - "OTHERVALUE=Y", - "WITH_BINARY=this is a binary value \a", - NULL); - - syslog(LOG_NOTICE, "Hello World!"); - - sd_journal_print(LOG_NOTICE, "Hello World"); - - sd_journal_send("MESSAGE=Hello World!", - "MESSAGE_ID=52fb62f99e2c49d89cfbf9d6de5e3555", - "PRIORITY=5", - "HOME=%s", getenv("HOME"), - "TERM=%s", getenv("TERM"), - "PAGE_SIZE=%li", sysconf(_SC_PAGESIZE), - "N_CPUS=%li", sysconf(_SC_NPROCESSORS_ONLN), - NULL); - - sleep(1); - - return 0; -} diff --git a/src/journal/test-journal-stream.c b/src/journal/test-journal-stream.c deleted file mode 100644 index b8caeb3d41..0000000000 --- a/src/journal/test-journal-stream.c +++ /dev/null @@ -1,186 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> -#include <fcntl.h> - -#include "systemd/sd-journal.h" - -#include "journal-file.h" -#include "journal-internal.h" -#include "util.h" -#include "log.h" -#include "macro.h" - -#define N_ENTRIES 200 - -static void verify_contents(sd_journal *j, unsigned skip) { - unsigned i; - - assert_se(j); - - i = 0; - SD_JOURNAL_FOREACH(j) { - const void *d; - char *k, *c; - size_t l; - unsigned u = 0; - - assert_se(sd_journal_get_cursor(j, &k) >= 0); - printf("cursor: %s\n", k); - free(k); - - assert_se(sd_journal_get_data(j, "MAGIC", &d, &l) >= 0); - printf("\t%.*s\n", (int) l, (const char*) d); - - assert_se(sd_journal_get_data(j, "NUMBER", &d, &l) >= 0); - assert_se(k = strndup(d, l)); - printf("\t%s\n", k); - - if (skip > 0) { - assert_se(safe_atou(k + 7, &u) >= 0); - assert_se(i == u); - i += skip; - } - - free(k); - - assert_se(sd_journal_get_cursor(j, &c) >= 0); - assert_se(sd_journal_test_cursor(j, c) > 0); - free(c); - } - - if (skip > 0) - assert_se(i == N_ENTRIES); -} - -int main(int argc, char *argv[]) { - JournalFile *one, *two, *three; - char t[] = "/tmp/journal-stream-XXXXXX"; - unsigned i; - _cleanup_journal_close_ sd_journal *j = NULL; - char *z; - const void *data; - size_t l; - - /* journal_file_open requires a valid machine id */ - if (access("/etc/machine-id", F_OK) != 0) - return EXIT_TEST_SKIP; - - log_set_max_level(LOG_DEBUG); - - assert_se(mkdtemp(t)); - assert_se(chdir(t) >= 0); - - assert_se(journal_file_open("one.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, &one) == 0); - assert_se(journal_file_open("two.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, &two) == 0); - assert_se(journal_file_open("three.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, &three) == 0); - - for (i = 0; i < N_ENTRIES; i++) { - char *p, *q; - dual_timestamp ts; - struct iovec iovec[2]; - - dual_timestamp_get(&ts); - - assert_se(asprintf(&p, "NUMBER=%u", i) >= 0); - iovec[0].iov_base = p; - iovec[0].iov_len = strlen(p); - - assert_se(asprintf(&q, "MAGIC=%s", i % 5 == 0 ? "quux" : "waldo") >= 0); - - iovec[1].iov_base = q; - iovec[1].iov_len = strlen(q); - - if (i % 10 == 0) - assert_se(journal_file_append_entry(three, &ts, iovec, 2, NULL, NULL, NULL) == 0); - else { - if (i % 3 == 0) - assert_se(journal_file_append_entry(two, &ts, iovec, 2, NULL, NULL, NULL) == 0); - - assert_se(journal_file_append_entry(one, &ts, iovec, 2, NULL, NULL, NULL) == 0); - } - - free(p); - free(q); - } - - journal_file_close(one); - journal_file_close(two); - journal_file_close(three); - - assert_se(sd_journal_open_directory(&j, t, 0) >= 0); - - assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0); - SD_JOURNAL_FOREACH_BACKWARDS(j) { - _cleanup_free_ char *c; - - assert_se(sd_journal_get_data(j, "NUMBER", &data, &l) >= 0); - printf("\t%.*s\n", (int) l, (const char*) data); - - assert_se(sd_journal_get_cursor(j, &c) >= 0); - assert_se(sd_journal_test_cursor(j, c) > 0); - } - - SD_JOURNAL_FOREACH(j) { - _cleanup_free_ char *c; - - assert_se(sd_journal_get_data(j, "NUMBER", &data, &l) >= 0); - printf("\t%.*s\n", (int) l, (const char*) data); - - assert_se(sd_journal_get_cursor(j, &c) >= 0); - assert_se(sd_journal_test_cursor(j, c) > 0); - } - - sd_journal_flush_matches(j); - - verify_contents(j, 1); - - printf("NEXT TEST\n"); - assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0); - - assert_se(z = journal_make_match_string(j)); - printf("resulting match expression is: %s\n", z); - free(z); - - verify_contents(j, 5); - - printf("NEXT TEST\n"); - sd_journal_flush_matches(j); - assert_se(sd_journal_add_match(j, "MAGIC=waldo", 0) >= 0); - assert_se(sd_journal_add_match(j, "NUMBER=10", 0) >= 0); - assert_se(sd_journal_add_match(j, "NUMBER=11", 0) >= 0); - assert_se(sd_journal_add_match(j, "NUMBER=12", 0) >= 0); - - assert_se(z = journal_make_match_string(j)); - printf("resulting match expression is: %s\n", z); - free(z); - - verify_contents(j, 0); - - assert_se(sd_journal_query_unique(j, "NUMBER") >= 0); - SD_JOURNAL_FOREACH_UNIQUE(j, data, l) - printf("%.*s\n", (int) l, (const char*) data); - - assert_se(rm_rf_dangerous(t, false, true, false) >= 0); - - return 0; -} diff --git a/src/journal/test-journal-syslog.c b/src/journal/test-journal-syslog.c deleted file mode 100644 index c99ca0654b..0000000000 --- a/src/journal/test-journal-syslog.c +++ /dev/null @@ -1,44 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "journald-syslog.h" -#include "macro.h" - -static void test_syslog_parse_identifier(const char* str, - const char *ident, const char*pid, int ret) { - const char *buf = str; - _cleanup_free_ char *ident2 = NULL, *pid2 = NULL; - int ret2; - - ret2 = syslog_parse_identifier(&buf, &ident2, &pid2); - - assert_se(ret == ret2); - assert_se(ident == ident2 || streq_ptr(ident, ident2)); - assert_se(pid == pid2 || streq_ptr(pid, pid2)); -} - -int main(void) { - test_syslog_parse_identifier("pidu[111]: xxx", "pidu", "111", 11); - test_syslog_parse_identifier("pidu: xxx", "pidu", NULL, 6); - test_syslog_parse_identifier("pidu xxx", NULL, NULL, 0); - - return 0; -} diff --git a/src/journal/test-journal-verify.c b/src/journal/test-journal-verify.c deleted file mode 100644 index de9cd9c8b8..0000000000 --- a/src/journal/test-journal-verify.c +++ /dev/null @@ -1,150 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdio.h> -#include <unistd.h> -#include <fcntl.h> - -#include "util.h" -#include "log.h" -#include "journal-file.h" -#include "journal-verify.h" - -#define N_ENTRIES 6000 -#define RANDOM_RANGE 77 - -static void bit_toggle(const char *fn, uint64_t p) { - uint8_t b; - ssize_t r; - int fd; - - fd = open(fn, O_RDWR|O_CLOEXEC); - assert_se(fd >= 0); - - r = pread(fd, &b, 1, p/8); - assert_se(r == 1); - - b ^= 1 << (p % 8); - - r = pwrite(fd, &b, 1, p/8); - assert_se(r == 1); - - safe_close(fd); -} - -static int raw_verify(const char *fn, const char *verification_key) { - JournalFile *f; - int r; - - r = journal_file_open(fn, O_RDONLY, 0666, true, !!verification_key, NULL, NULL, NULL, &f); - if (r < 0) - return r; - - r = journal_file_verify(f, verification_key, NULL, NULL, NULL, false); - journal_file_close(f); - - return r; -} - -int main(int argc, char *argv[]) { - char t[] = "/tmp/journal-XXXXXX"; - unsigned n; - JournalFile *f; - const char *verification_key = argv[1]; - usec_t from = 0, to = 0, total = 0; - char a[FORMAT_TIMESTAMP_MAX]; - char b[FORMAT_TIMESTAMP_MAX]; - char c[FORMAT_TIMESPAN_MAX]; - struct stat st; - uint64_t p; - - /* journal_file_open requires a valid machine id */ - if (access("/etc/machine-id", F_OK) != 0) - return EXIT_TEST_SKIP; - - log_set_max_level(LOG_DEBUG); - - assert_se(mkdtemp(t)); - assert_se(chdir(t) >= 0); - - log_info("Generating..."); - - assert_se(journal_file_open("test.journal", O_RDWR|O_CREAT, 0666, true, !!verification_key, NULL, NULL, NULL, &f) == 0); - - for (n = 0; n < N_ENTRIES; n++) { - struct iovec iovec; - struct dual_timestamp ts; - char *test; - - dual_timestamp_get(&ts); - - assert_se(asprintf(&test, "RANDOM=%lu", random() % RANDOM_RANGE)); - - iovec.iov_base = (void*) test; - iovec.iov_len = strlen(test); - - assert_se(journal_file_append_entry(f, &ts, &iovec, 1, NULL, NULL, NULL) == 0); - - free(test); - } - - journal_file_close(f); - - log_info("Verifying..."); - - assert_se(journal_file_open("test.journal", O_RDONLY, 0666, true, !!verification_key, NULL, NULL, NULL, &f) == 0); - /* journal_file_print_header(f); */ - journal_file_dump(f); - - assert_se(journal_file_verify(f, verification_key, &from, &to, &total, true) >= 0); - - if (verification_key && JOURNAL_HEADER_SEALED(f->header)) { - log_info("=> Validated from %s to %s, %s missing", - format_timestamp(a, sizeof(a), from), - format_timestamp(b, sizeof(b), to), - format_timespan(c, sizeof(c), total > to ? total - to : 0, 0)); - } - - journal_file_close(f); - - if (verification_key) { - log_info("Toggling bits..."); - - assert_se(stat("test.journal", &st) >= 0); - - for (p = 38448*8+0; p < ((uint64_t) st.st_size * 8); p ++) { - bit_toggle("test.journal", p); - - log_info("[ %"PRIu64"+%"PRIu64"]", p / 8, p % 8); - - if (raw_verify("test.journal", verification_key) >= 0) - log_notice(ANSI_HIGHLIGHT_RED_ON ">>>> %"PRIu64" (bit %"PRIu64") can be toggled without detection." ANSI_HIGHLIGHT_OFF, p / 8, p % 8); - - bit_toggle("test.journal", p); - } - } - - log_info("Exiting..."); - - assert_se(rm_rf_dangerous(t, false, true, false) >= 0); - - return 0; -} diff --git a/src/journal/test-journal.c b/src/journal/test-journal.c deleted file mode 100644 index f7cc75b3d5..0000000000 --- a/src/journal/test-journal.c +++ /dev/null @@ -1,180 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <fcntl.h> -#include <unistd.h> - - -#include "log.h" -#include "journal-file.h" -#include "journal-authenticate.h" -#include "journal-vacuum.h" - -static bool arg_keep = false; - -static void test_non_empty(void) { - dual_timestamp ts; - JournalFile *f; - struct iovec iovec; - static const char test[] = "TEST1=1", test2[] = "TEST2=2"; - Object *o; - uint64_t p; - char t[] = "/tmp/journal-XXXXXX"; - - log_set_max_level(LOG_DEBUG); - - assert_se(mkdtemp(t)); - assert_se(chdir(t) >= 0); - - assert_se(journal_file_open("test.journal", O_RDWR|O_CREAT, 0666, true, true, NULL, NULL, NULL, &f) == 0); - - dual_timestamp_get(&ts); - - iovec.iov_base = (void*) test; - iovec.iov_len = strlen(test); - assert_se(journal_file_append_entry(f, &ts, &iovec, 1, NULL, NULL, NULL) == 0); - - iovec.iov_base = (void*) test2; - iovec.iov_len = strlen(test2); - assert_se(journal_file_append_entry(f, &ts, &iovec, 1, NULL, NULL, NULL) == 0); - - iovec.iov_base = (void*) test; - iovec.iov_len = strlen(test); - assert_se(journal_file_append_entry(f, &ts, &iovec, 1, NULL, NULL, NULL) == 0); - -#ifdef HAVE_GCRYPT - journal_file_append_tag(f); -#endif - journal_file_dump(f); - - assert_se(journal_file_next_entry(f, 0, DIRECTION_DOWN, &o, &p) == 1); - assert_se(le64toh(o->entry.seqnum) == 1); - - assert_se(journal_file_next_entry(f, p, DIRECTION_DOWN, &o, &p) == 1); - assert_se(le64toh(o->entry.seqnum) == 2); - - assert_se(journal_file_next_entry(f, p, DIRECTION_DOWN, &o, &p) == 1); - assert_se(le64toh(o->entry.seqnum) == 3); - - assert_se(journal_file_next_entry(f, p, DIRECTION_DOWN, &o, &p) == 0); - - assert_se(journal_file_next_entry(f, 0, DIRECTION_DOWN, &o, &p) == 1); - assert_se(le64toh(o->entry.seqnum) == 1); - - assert_se(journal_file_find_data_object(f, test, strlen(test), NULL, &p) == 1); - assert_se(journal_file_next_entry_for_data(f, NULL, 0, p, DIRECTION_DOWN, &o, NULL) == 1); - assert_se(le64toh(o->entry.seqnum) == 1); - - assert_se(journal_file_next_entry_for_data(f, NULL, 0, p, DIRECTION_UP, &o, NULL) == 1); - assert_se(le64toh(o->entry.seqnum) == 3); - - assert_se(journal_file_find_data_object(f, test2, strlen(test2), NULL, &p) == 1); - assert_se(journal_file_next_entry_for_data(f, NULL, 0, p, DIRECTION_UP, &o, NULL) == 1); - assert_se(le64toh(o->entry.seqnum) == 2); - - assert_se(journal_file_next_entry_for_data(f, NULL, 0, p, DIRECTION_DOWN, &o, NULL) == 1); - assert_se(le64toh(o->entry.seqnum) == 2); - - assert_se(journal_file_find_data_object(f, "quux", 4, NULL, &p) == 0); - - assert_se(journal_file_move_to_entry_by_seqnum(f, 1, DIRECTION_DOWN, &o, NULL) == 1); - assert_se(le64toh(o->entry.seqnum) == 1); - - assert_se(journal_file_move_to_entry_by_seqnum(f, 3, DIRECTION_DOWN, &o, NULL) == 1); - assert_se(le64toh(o->entry.seqnum) == 3); - - assert_se(journal_file_move_to_entry_by_seqnum(f, 2, DIRECTION_DOWN, &o, NULL) == 1); - assert_se(le64toh(o->entry.seqnum) == 2); - - assert_se(journal_file_move_to_entry_by_seqnum(f, 10, DIRECTION_DOWN, &o, NULL) == 0); - - journal_file_rotate(&f, true, true); - journal_file_rotate(&f, true, true); - - journal_file_close(f); - - log_info("Done..."); - - if (arg_keep) - log_info("Not removing %s", t); - else { - journal_directory_vacuum(".", 3000000, 0, NULL, true); - - assert_se(rm_rf_dangerous(t, false, true, false) >= 0); - } - - puts("------------------------------------------------------------"); -} - -static void test_empty(void) { - JournalFile *f1, *f2, *f3, *f4; - char t[] = "/tmp/journal-XXXXXX"; - - log_set_max_level(LOG_DEBUG); - - assert_se(mkdtemp(t)); - assert_se(chdir(t) >= 0); - - assert_se(journal_file_open("test.journal", O_RDWR|O_CREAT, 0666, false, false, NULL, NULL, NULL, &f1) == 0); - - assert_se(journal_file_open("test-compress.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, &f2) == 0); - - assert_se(journal_file_open("test-seal.journal", O_RDWR|O_CREAT, 0666, false, true, NULL, NULL, NULL, &f3) == 0); - - assert_se(journal_file_open("test-seal-compress.journal", O_RDWR|O_CREAT, 0666, true, true, NULL, NULL, NULL, &f4) == 0); - - journal_file_print_header(f1); - puts(""); - journal_file_print_header(f2); - puts(""); - journal_file_print_header(f3); - puts(""); - journal_file_print_header(f4); - puts(""); - - log_info("Done..."); - - if (arg_keep) - log_info("Not removing %s", t); - else { - journal_directory_vacuum(".", 3000000, 0, NULL, true); - - assert_se(rm_rf_dangerous(t, false, true, false) >= 0); - } - - journal_file_close(f1); - journal_file_close(f2); - journal_file_close(f3); - journal_file_close(f4); -} - -int main(int argc, char *argv[]) { - arg_keep = argc > 1; - - /* journal_file_open requires a valid machine id */ - if (access("/etc/machine-id", F_OK) != 0) - return EXIT_TEST_SKIP; - - test_non_empty(); - test_empty(); - - return 0; -} diff --git a/src/journal/test-mmap-cache.c b/src/journal/test-mmap-cache.c deleted file mode 100644 index 3258b22702..0000000000 --- a/src/journal/test-mmap-cache.c +++ /dev/null @@ -1,79 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdlib.h> -#include <sys/mman.h> -#include <unistd.h> -#include <fcntl.h> - -#include "macro.h" -#include "util.h" -#include "mmap-cache.h" - -int main(int argc, char *argv[]) { - int x, y, z, r; - char px[] = "/tmp/testmmapXXXXXXX", py[] = "/tmp/testmmapYXXXXXX", pz[] = "/tmp/testmmapZXXXXXX"; - MMapCache *m; - void *p, *q; - - assert_se(m = mmap_cache_new()); - - x = mkostemp_safe(px, O_RDWR|O_CLOEXEC); - assert_se(x >= 0); - unlink(px); - - y = mkostemp_safe(py, O_RDWR|O_CLOEXEC); - assert_se(y >= 0); - unlink(py); - - z = mkostemp_safe(pz, O_RDWR|O_CLOEXEC); - assert_se(z >= 0); - unlink(pz); - - r = mmap_cache_get(m, x, PROT_READ, 0, false, 1, 2, NULL, &p); - assert_se(r >= 0); - - r = mmap_cache_get(m, x, PROT_READ, 0, false, 2, 2, NULL, &q); - assert_se(r >= 0); - - assert_se((uint8_t*) p + 1 == (uint8_t*) q); - - r = mmap_cache_get(m, x, PROT_READ, 1, false, 3, 2, NULL, &q); - assert_se(r >= 0); - - assert_se((uint8_t*) p + 2 == (uint8_t*) q); - - r = mmap_cache_get(m, x, PROT_READ, 0, false, 16ULL*1024ULL*1024ULL, 2, NULL, &p); - assert_se(r >= 0); - - r = mmap_cache_get(m, x, PROT_READ, 1, false, 16ULL*1024ULL*1024ULL+1, 2, NULL, &q); - assert_se(r >= 0); - - assert_se((uint8_t*) p + 1 == (uint8_t*) q); - - mmap_cache_unref(m); - - safe_close(x); - safe_close(y); - safe_close(z); - - return 0; -} |