diff options
Diffstat (limited to 'src/shared')
96 files changed, 0 insertions, 23411 deletions
diff --git a/src/shared/Makefile b/src/shared/Makefile deleted file mode 120000 index d0b0e8e008..0000000000 --- a/src/shared/Makefile +++ /dev/null @@ -1 +0,0 @@ -../Makefile
\ No newline at end of file diff --git a/src/shared/acl-util.c b/src/shared/acl-util.c deleted file mode 100644 index 2aa951fce9..0000000000 --- a/src/shared/acl-util.c +++ /dev/null @@ -1,429 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011,2013 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 <errno.h> -#include <stdbool.h> - -#include "acl-util.h" -#include "alloc-util.h" -#include "string-util.h" -#include "strv.h" -#include "user-util.h" -#include "util.h" - -int acl_find_uid(acl_t acl, uid_t uid, acl_entry_t *entry) { - acl_entry_t i; - int r; - - assert(acl); - assert(entry); - - for (r = acl_get_entry(acl, ACL_FIRST_ENTRY, &i); - r > 0; - r = acl_get_entry(acl, ACL_NEXT_ENTRY, &i)) { - - acl_tag_t tag; - uid_t *u; - bool b; - - if (acl_get_tag_type(i, &tag) < 0) - return -errno; - - if (tag != ACL_USER) - continue; - - u = acl_get_qualifier(i); - if (!u) - return -errno; - - b = *u == uid; - acl_free(u); - - if (b) { - *entry = i; - return 1; - } - } - if (r < 0) - return -errno; - - return 0; -} - -int calc_acl_mask_if_needed(acl_t *acl_p) { - acl_entry_t i; - int r; - bool need = false; - - assert(acl_p); - - for (r = acl_get_entry(*acl_p, ACL_FIRST_ENTRY, &i); - r > 0; - r = acl_get_entry(*acl_p, ACL_NEXT_ENTRY, &i)) { - acl_tag_t tag; - - if (acl_get_tag_type(i, &tag) < 0) - return -errno; - - if (tag == ACL_MASK) - return 0; - - if (IN_SET(tag, ACL_USER, ACL_GROUP)) - need = true; - } - if (r < 0) - return -errno; - - if (need && acl_calc_mask(acl_p) < 0) - return -errno; - - return need; -} - -int add_base_acls_if_needed(acl_t *acl_p, const char *path) { - acl_entry_t i; - int r; - bool have_user_obj = false, have_group_obj = false, have_other = false; - struct stat st; - _cleanup_(acl_freep) acl_t basic = NULL; - - assert(acl_p); - - for (r = acl_get_entry(*acl_p, ACL_FIRST_ENTRY, &i); - r > 0; - r = acl_get_entry(*acl_p, ACL_NEXT_ENTRY, &i)) { - acl_tag_t tag; - - if (acl_get_tag_type(i, &tag) < 0) - return -errno; - - if (tag == ACL_USER_OBJ) - have_user_obj = true; - else if (tag == ACL_GROUP_OBJ) - have_group_obj = true; - else if (tag == ACL_OTHER) - have_other = true; - if (have_user_obj && have_group_obj && have_other) - return 0; - } - if (r < 0) - return -errno; - - r = stat(path, &st); - if (r < 0) - return -errno; - - basic = acl_from_mode(st.st_mode); - if (!basic) - return -errno; - - for (r = acl_get_entry(basic, ACL_FIRST_ENTRY, &i); - r > 0; - r = acl_get_entry(basic, ACL_NEXT_ENTRY, &i)) { - acl_tag_t tag; - acl_entry_t dst; - - if (acl_get_tag_type(i, &tag) < 0) - return -errno; - - if ((tag == ACL_USER_OBJ && have_user_obj) || - (tag == ACL_GROUP_OBJ && have_group_obj) || - (tag == ACL_OTHER && have_other)) - continue; - - r = acl_create_entry(acl_p, &dst); - if (r < 0) - return -errno; - - r = acl_copy_entry(dst, i); - if (r < 0) - return -errno; - } - if (r < 0) - return -errno; - return 0; -} - -int acl_search_groups(const char *path, char ***ret_groups) { - _cleanup_strv_free_ char **g = NULL; - _cleanup_(acl_free) acl_t acl = NULL; - bool ret = false; - acl_entry_t entry; - int r; - - assert(path); - - acl = acl_get_file(path, ACL_TYPE_DEFAULT); - if (!acl) - return -errno; - - r = acl_get_entry(acl, ACL_FIRST_ENTRY, &entry); - for (;;) { - _cleanup_(acl_free_gid_tpp) gid_t *gid = NULL; - acl_tag_t tag; - - if (r < 0) - return -errno; - if (r == 0) - break; - - if (acl_get_tag_type(entry, &tag) < 0) - return -errno; - - if (tag != ACL_GROUP) - goto next; - - gid = acl_get_qualifier(entry); - if (!gid) - return -errno; - - if (in_gid(*gid) > 0) { - if (!ret_groups) - return true; - - ret = true; - } - - if (ret_groups) { - char *name; - - name = gid_to_name(*gid); - if (!name) - return -ENOMEM; - - r = strv_consume(&g, name); - if (r < 0) - return r; - } - - next: - r = acl_get_entry(acl, ACL_NEXT_ENTRY, &entry); - } - - if (ret_groups) { - *ret_groups = g; - g = NULL; - } - - return ret; -} - -int parse_acl(const char *text, acl_t *acl_access, acl_t *acl_default, bool want_mask) { - _cleanup_free_ char **a = NULL, **d = NULL; /* strings are not be freed */ - _cleanup_strv_free_ char **split; - char **entry; - int r = -EINVAL; - _cleanup_(acl_freep) acl_t a_acl = NULL, d_acl = NULL; - - split = strv_split(text, ","); - if (!split) - return -ENOMEM; - - STRV_FOREACH(entry, split) { - char *p; - - p = startswith(*entry, "default:"); - if (!p) - p = startswith(*entry, "d:"); - - if (p) - r = strv_push(&d, p); - else - r = strv_push(&a, *entry); - if (r < 0) - return r; - } - - if (!strv_isempty(a)) { - _cleanup_free_ char *join; - - join = strv_join(a, ","); - if (!join) - return -ENOMEM; - - a_acl = acl_from_text(join); - if (!a_acl) - return -errno; - - if (want_mask) { - r = calc_acl_mask_if_needed(&a_acl); - if (r < 0) - return r; - } - } - - if (!strv_isempty(d)) { - _cleanup_free_ char *join; - - join = strv_join(d, ","); - if (!join) - return -ENOMEM; - - d_acl = acl_from_text(join); - if (!d_acl) - return -errno; - - if (want_mask) { - r = calc_acl_mask_if_needed(&d_acl); - if (r < 0) - return r; - } - } - - *acl_access = a_acl; - *acl_default = d_acl; - a_acl = d_acl = NULL; - - return 0; -} - -static int acl_entry_equal(acl_entry_t a, acl_entry_t b) { - acl_tag_t tag_a, tag_b; - - if (acl_get_tag_type(a, &tag_a) < 0) - return -errno; - - if (acl_get_tag_type(b, &tag_b) < 0) - return -errno; - - if (tag_a != tag_b) - return false; - - switch (tag_a) { - case ACL_USER_OBJ: - case ACL_GROUP_OBJ: - case ACL_MASK: - case ACL_OTHER: - /* can have only one of those */ - return true; - case ACL_USER: { - _cleanup_(acl_free_uid_tpp) uid_t *uid_a = NULL, *uid_b = NULL; - - uid_a = acl_get_qualifier(a); - if (!uid_a) - return -errno; - - uid_b = acl_get_qualifier(b); - if (!uid_b) - return -errno; - - return *uid_a == *uid_b; - } - case ACL_GROUP: { - _cleanup_(acl_free_gid_tpp) gid_t *gid_a = NULL, *gid_b = NULL; - - gid_a = acl_get_qualifier(a); - if (!gid_a) - return -errno; - - gid_b = acl_get_qualifier(b); - if (!gid_b) - return -errno; - - return *gid_a == *gid_b; - } - default: - assert_not_reached("Unknown acl tag type"); - } -} - -static int find_acl_entry(acl_t acl, acl_entry_t entry, acl_entry_t *out) { - acl_entry_t i; - int r; - - for (r = acl_get_entry(acl, ACL_FIRST_ENTRY, &i); - r > 0; - r = acl_get_entry(acl, ACL_NEXT_ENTRY, &i)) { - - r = acl_entry_equal(i, entry); - if (r < 0) - return r; - if (r > 0) { - *out = i; - return 1; - } - } - if (r < 0) - return -errno; - return 0; -} - -int acls_for_file(const char *path, acl_type_t type, acl_t new, acl_t *acl) { - _cleanup_(acl_freep) acl_t old; - acl_entry_t i; - int r; - - old = acl_get_file(path, type); - if (!old) - return -errno; - - for (r = acl_get_entry(new, ACL_FIRST_ENTRY, &i); - r > 0; - r = acl_get_entry(new, ACL_NEXT_ENTRY, &i)) { - - acl_entry_t j; - - r = find_acl_entry(old, i, &j); - if (r < 0) - return r; - if (r == 0) - if (acl_create_entry(&old, &j) < 0) - return -errno; - - if (acl_copy_entry(j, i) < 0) - return -errno; - } - if (r < 0) - return -errno; - - *acl = old; - old = NULL; - return 0; -} - -int add_acls_for_user(int fd, uid_t uid) { - _cleanup_(acl_freep) acl_t acl = NULL; - acl_entry_t entry; - acl_permset_t permset; - int r; - - acl = acl_get_fd(fd); - if (!acl) - return -errno; - - 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) - return -errno; - } - - /* 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) - return -errno; - - r = calc_acl_mask_if_needed(&acl); - if (r < 0) - return r; - - return acl_set_fd(fd, acl); -} diff --git a/src/shared/acl-util.h b/src/shared/acl-util.h deleted file mode 100644 index 396e9e067e..0000000000 --- a/src/shared/acl-util.h +++ /dev/null @@ -1,48 +0,0 @@ -#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/>. -***/ - -#ifdef HAVE_ACL - -#include <acl/libacl.h> -#include <stdbool.h> -#include <sys/acl.h> - -#include "macro.h" - -int acl_find_uid(acl_t acl, uid_t uid, acl_entry_t *entry); -int calc_acl_mask_if_needed(acl_t *acl_p); -int add_base_acls_if_needed(acl_t *acl_p, const char *path); -int acl_search_groups(const char* path, char ***ret_groups); -int parse_acl(const char *text, acl_t *acl_access, acl_t *acl_default, bool want_mask); -int acls_for_file(const char *path, acl_type_t type, acl_t new, acl_t *acl); -int add_acls_for_user(int fd, uid_t uid); - -/* acl_free takes multiple argument types. - * Multiple cleanup functions are necessary. */ -DEFINE_TRIVIAL_CLEANUP_FUNC(acl_t, acl_free); -#define acl_free_charp acl_free -DEFINE_TRIVIAL_CLEANUP_FUNC(char*, acl_free_charp); -#define acl_free_uid_tp acl_free -DEFINE_TRIVIAL_CLEANUP_FUNC(uid_t*, acl_free_uid_tp); -#define acl_free_gid_tp acl_free -DEFINE_TRIVIAL_CLEANUP_FUNC(gid_t*, acl_free_gid_tp); - -#endif diff --git a/src/shared/acpi-fpdt.c b/src/shared/acpi-fpdt.c deleted file mode 100644 index 6779691c28..0000000000 --- a/src/shared/acpi-fpdt.c +++ /dev/null @@ -1,164 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2013 Kay Sievers - - 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 <stdint.h> -#include <string.h> -#include <unistd.h> - -#include "acpi-fpdt.h" -#include "alloc-util.h" -#include "fd-util.h" -#include "fileio.h" -#include "time-util.h" - -struct acpi_table_header { - char signature[4]; - uint32_t length; - uint8_t revision; - uint8_t checksum; - char oem_id[6]; - char oem_table_id[8]; - uint32_t oem_revision; - char asl_compiler_id[4]; - uint32_t asl_compiler_revision; -}; - -enum { - ACPI_FPDT_TYPE_BOOT = 0, - ACPI_FPDT_TYPE_S3PERF = 1, -}; - -struct acpi_fpdt_header { - uint16_t type; - uint8_t length; - uint8_t revision; - uint8_t reserved[4]; - uint64_t ptr; -}; - -struct acpi_fpdt_boot_header { - char signature[4]; - uint32_t length; -}; - -enum { - ACPI_FPDT_S3PERF_RESUME_REC = 0, - ACPI_FPDT_S3PERF_SUSPEND_REC = 1, - ACPI_FPDT_BOOT_REC = 2, -}; - -struct acpi_fpdt_boot { - uint16_t type; - uint8_t length; - uint8_t revision; - uint8_t reserved[4]; - uint64_t reset_end; - uint64_t load_start; - uint64_t startup_start; - uint64_t exit_services_entry; - uint64_t exit_services_exit; -}; - -int acpi_get_boot_usec(usec_t *loader_start, usec_t *loader_exit) { - _cleanup_free_ char *buf = NULL; - struct acpi_table_header *tbl; - size_t l = 0; - struct acpi_fpdt_header *rec; - int r; - uint64_t ptr = 0; - _cleanup_close_ int fd = -1; - struct acpi_fpdt_boot_header hbrec; - struct acpi_fpdt_boot brec; - - r = read_full_file("/sys/firmware/acpi/tables/FPDT", &buf, &l); - if (r < 0) - return r; - - if (l < sizeof(struct acpi_table_header) + sizeof(struct acpi_fpdt_header)) - return -EINVAL; - - tbl = (struct acpi_table_header *)buf; - if (l != tbl->length) - return -EINVAL; - - if (memcmp(tbl->signature, "FPDT", 4) != 0) - return -EINVAL; - - /* find Firmware Basic Boot Performance Pointer Record */ - for (rec = (struct acpi_fpdt_header *)(buf + sizeof(struct acpi_table_header)); - (char *)rec < buf + l; - rec = (struct acpi_fpdt_header *)((char *)rec + rec->length)) { - if (rec->length <= 0) - break; - if (rec->type != ACPI_FPDT_TYPE_BOOT) - continue; - if (rec->length != sizeof(struct acpi_fpdt_header)) - continue; - - ptr = rec->ptr; - break; - } - - if (ptr == 0) - return -ENODATA; - - /* read Firmware Basic Boot Performance Data Record */ - fd = open("/dev/mem", O_CLOEXEC|O_RDONLY); - if (fd < 0) - return -errno; - - l = pread(fd, &hbrec, sizeof(struct acpi_fpdt_boot_header), ptr); - if (l != sizeof(struct acpi_fpdt_boot_header)) - return -EINVAL; - - if (memcmp(hbrec.signature, "FBPT", 4) != 0) - return -EINVAL; - - if (hbrec.length < sizeof(struct acpi_fpdt_boot_header) + sizeof(struct acpi_fpdt_boot)) - return -EINVAL; - - l = pread(fd, &brec, sizeof(struct acpi_fpdt_boot), ptr + sizeof(struct acpi_fpdt_boot_header)); - if (l != sizeof(struct acpi_fpdt_boot)) - return -EINVAL; - - if (brec.length != sizeof(struct acpi_fpdt_boot)) - return -EINVAL; - - if (brec.type != ACPI_FPDT_BOOT_REC) - return -EINVAL; - - if (brec.exit_services_exit == 0) - /* Non-UEFI compatible boot. */ - return -ENODATA; - - if (brec.startup_start == 0 || brec.exit_services_exit < brec.startup_start) - return -EINVAL; - if (brec.exit_services_exit > NSEC_PER_HOUR) - return -EINVAL; - - if (loader_start) - *loader_start = brec.startup_start / 1000; - if (loader_exit) - *loader_exit = brec.exit_services_exit / 1000; - - return 0; -} diff --git a/src/shared/acpi-fpdt.h b/src/shared/acpi-fpdt.h deleted file mode 100644 index fc28175d0a..0000000000 --- a/src/shared/acpi-fpdt.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 Kay Sievers - - 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-util.h> - -int acpi_get_boot_usec(usec_t *loader_start, usec_t *loader_exit); diff --git a/src/shared/apparmor-util.c b/src/shared/apparmor-util.c deleted file mode 100644 index edd695fd23..0000000000 --- a/src/shared/apparmor-util.c +++ /dev/null @@ -1,39 +0,0 @@ -/*** - 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 <stddef.h> - -#include "alloc-util.h" -#include "apparmor-util.h" -#include "fileio.h" -#include "parse-util.h" - -bool mac_apparmor_use(void) { - static int cached_use = -1; - - if (cached_use < 0) { - _cleanup_free_ char *p = NULL; - - cached_use = - read_one_line_file("/sys/module/apparmor/parameters/enabled", &p) >= 0 && - parse_boolean(p) > 0; - } - - return cached_use; -} diff --git a/src/shared/apparmor-util.h b/src/shared/apparmor-util.h deleted file mode 100644 index 524f740152..0000000000 --- a/src/shared/apparmor-util.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once - -/*** - 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 <stdbool.h> - -bool mac_apparmor_use(void); diff --git a/src/shared/ask-password-api.c b/src/shared/ask-password-api.c deleted file mode 100644 index 2597cfc648..0000000000 --- a/src/shared/ask-password-api.c +++ /dev/null @@ -1,734 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <inttypes.h> -#include <limits.h> -#include <poll.h> -#include <signal.h> -#include <stdbool.h> -#include <stddef.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/inotify.h> -#include <sys/signalfd.h> -#include <sys/socket.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/uio.h> -#include <sys/un.h> -#include <termios.h> -#include <unistd.h> - -#include "alloc-util.h" -#include "ask-password-api.h" -#include "fd-util.h" -#include "fileio.h" -#include "formats-util.h" -#include "io-util.h" -#include "log.h" -#include "macro.h" -#include "missing.h" -#include "mkdir.h" -#include "random-util.h" -#include "signal-util.h" -#include "socket-util.h" -#include "string-util.h" -#include "strv.h" -#include "terminal-util.h" -#include "time-util.h" -#include "umask-util.h" -#include "utf8.h" -#include "util.h" - -#define KEYRING_TIMEOUT_USEC ((5 * USEC_PER_MINUTE) / 2) - -static int lookup_key(const char *keyname, key_serial_t *ret) { - key_serial_t serial; - - assert(keyname); - assert(ret); - - serial = request_key("user", keyname, NULL, 0); - if (serial == -1) - return negative_errno(); - - *ret = serial; - return 0; -} - -static int retrieve_key(key_serial_t serial, char ***ret) { - _cleanup_free_ char *p = NULL; - long m = 100, n; - char **l; - - assert(ret); - - for (;;) { - p = new(char, m); - if (!p) - return -ENOMEM; - - n = keyctl(KEYCTL_READ, (unsigned long) serial, (unsigned long) p, (unsigned long) m, 0); - if (n < 0) - return -errno; - - if (n < m) - break; - - memory_erase(p, n); - free(p); - m *= 2; - } - - l = strv_parse_nulstr(p, n); - if (!l) - return -ENOMEM; - - memory_erase(p, n); - - *ret = l; - return 0; -} - -static int add_to_keyring(const char *keyname, AskPasswordFlags flags, char **passwords) { - _cleanup_strv_free_erase_ char **l = NULL; - _cleanup_free_ char *p = NULL; - key_serial_t serial; - size_t n; - int r; - - assert(keyname); - assert(passwords); - - if (!(flags & ASK_PASSWORD_PUSH_CACHE)) - return 0; - - r = lookup_key(keyname, &serial); - if (r >= 0) { - r = retrieve_key(serial, &l); - if (r < 0) - return r; - } else if (r != -ENOKEY) - return r; - - r = strv_extend_strv(&l, passwords, true); - if (r <= 0) - return r; - - r = strv_make_nulstr(l, &p, &n); - if (r < 0) - return r; - - serial = add_key("user", keyname, p, n, KEY_SPEC_USER_KEYRING); - memory_erase(p, n); - if (serial == -1) - return -errno; - - if (keyctl(KEYCTL_SET_TIMEOUT, - (unsigned long) serial, - (unsigned long) DIV_ROUND_UP(KEYRING_TIMEOUT_USEC, USEC_PER_SEC), 0, 0) < 0) - log_debug_errno(errno, "Failed to adjust timeout: %m"); - - log_debug("Added key to keyring as %" PRIi32 ".", serial); - - return 1; -} - -static int add_to_keyring_and_log(const char *keyname, AskPasswordFlags flags, char **passwords) { - int r; - - assert(keyname); - assert(passwords); - - r = add_to_keyring(keyname, flags, passwords); - if (r < 0) - return log_debug_errno(r, "Failed to add password to keyring: %m"); - - return 0; -} - -int ask_password_keyring(const char *keyname, AskPasswordFlags flags, char ***ret) { - - key_serial_t serial; - int r; - - assert(keyname); - assert(ret); - - if (!(flags & ASK_PASSWORD_ACCEPT_CACHED)) - return -EUNATCH; - - r = lookup_key(keyname, &serial); - if (r == -ENOSYS) /* when retrieving the distinction doesn't matter */ - return -ENOKEY; - if (r < 0) - return r; - - return retrieve_key(serial, ret); -} - -static void backspace_chars(int ttyfd, size_t p) { - - if (ttyfd < 0) - return; - - while (p > 0) { - p--; - - loop_write(ttyfd, "\b \b", 3, false); - } -} - -int ask_password_tty( - const char *message, - const char *keyname, - usec_t until, - AskPasswordFlags flags, - const char *flag_file, - char **ret) { - - struct termios old_termios, new_termios; - char passphrase[LINE_MAX + 1] = {}, *x; - size_t p = 0, codepoint = 0; - int r; - _cleanup_close_ int ttyfd = -1, notify = -1; - struct pollfd pollfd[2]; - bool reset_tty = false; - bool dirty = false; - enum { - POLL_TTY, - POLL_INOTIFY - }; - - assert(ret); - - if (flags & ASK_PASSWORD_NO_TTY) - return -EUNATCH; - - if (!message) - message = "Password:"; - - if (flag_file) { - notify = inotify_init1(IN_CLOEXEC|IN_NONBLOCK); - if (notify < 0) { - r = -errno; - goto finish; - } - - if (inotify_add_watch(notify, flag_file, IN_ATTRIB /* for the link count */) < 0) { - r = -errno; - goto finish; - } - } - - ttyfd = open("/dev/tty", O_RDWR|O_NOCTTY|O_CLOEXEC); - if (ttyfd >= 0) { - - if (tcgetattr(ttyfd, &old_termios) < 0) { - r = -errno; - goto finish; - } - - if (colors_enabled()) - loop_write(ttyfd, ANSI_HIGHLIGHT, strlen(ANSI_HIGHLIGHT), false); - loop_write(ttyfd, message, strlen(message), false); - loop_write(ttyfd, " ", 1, false); - if (colors_enabled()) - loop_write(ttyfd, ANSI_NORMAL, strlen(ANSI_NORMAL), false); - - new_termios = old_termios; - new_termios.c_lflag &= ~(ICANON|ECHO); - new_termios.c_cc[VMIN] = 1; - new_termios.c_cc[VTIME] = 0; - - if (tcsetattr(ttyfd, TCSADRAIN, &new_termios) < 0) { - r = -errno; - goto finish; - } - - reset_tty = true; - } - - zero(pollfd); - pollfd[POLL_TTY].fd = ttyfd >= 0 ? ttyfd : STDIN_FILENO; - pollfd[POLL_TTY].events = POLLIN; - pollfd[POLL_INOTIFY].fd = notify; - pollfd[POLL_INOTIFY].events = POLLIN; - - for (;;) { - char c; - int sleep_for = -1, k; - ssize_t n; - - if (until > 0) { - usec_t y; - - y = now(CLOCK_MONOTONIC); - - if (y > until) { - r = -ETIME; - goto finish; - } - - sleep_for = (int) ((until - y) / USEC_PER_MSEC); - } - - if (flag_file) - if (access(flag_file, F_OK) < 0) { - r = -errno; - goto finish; - } - - k = poll(pollfd, notify >= 0 ? 2 : 1, sleep_for); - if (k < 0) { - if (errno == EINTR) - continue; - - r = -errno; - goto finish; - } else if (k == 0) { - r = -ETIME; - goto finish; - } - - if (notify >= 0 && pollfd[POLL_INOTIFY].revents != 0) - flush_fd(notify); - - if (pollfd[POLL_TTY].revents == 0) - continue; - - n = read(ttyfd >= 0 ? ttyfd : STDIN_FILENO, &c, 1); - if (n < 0) { - if (errno == EINTR || errno == EAGAIN) - continue; - - r = -errno; - goto finish; - - } else if (n == 0) - break; - - if (c == '\n') - break; - else if (c == 21) { /* C-u */ - - if (!(flags & ASK_PASSWORD_SILENT)) - backspace_chars(ttyfd, p); - p = 0; - - } else if (c == '\b' || c == 127) { - - if (p > 0) { - - if (!(flags & ASK_PASSWORD_SILENT)) - backspace_chars(ttyfd, 1); - - p--; - } else if (!dirty && !(flags & ASK_PASSWORD_SILENT)) { - - flags |= ASK_PASSWORD_SILENT; - - /* There are two ways to enter silent - * mode. Either by pressing backspace - * as first key (and only as first - * key), or ... */ - if (ttyfd >= 0) - loop_write(ttyfd, "(no echo) ", 10, false); - - } else if (ttyfd >= 0) - loop_write(ttyfd, "\a", 1, false); - - } else if (c == '\t' && !(flags & ASK_PASSWORD_SILENT)) { - - backspace_chars(ttyfd, p); - flags |= ASK_PASSWORD_SILENT; - - /* ... or by pressing TAB at any time. */ - - if (ttyfd >= 0) - loop_write(ttyfd, "(no echo) ", 10, false); - } else { - if (p >= sizeof(passphrase)-1) { - loop_write(ttyfd, "\a", 1, false); - continue; - } - - passphrase[p++] = c; - - if (!(flags & ASK_PASSWORD_SILENT) && ttyfd >= 0) { - n = utf8_encoded_valid_unichar(passphrase + codepoint); - if (n >= 0) { - codepoint = p; - loop_write(ttyfd, (flags & ASK_PASSWORD_ECHO) ? &c : "*", 1, false); - } - } - - dirty = true; - } - - c = 'x'; - } - - x = strndup(passphrase, p); - memory_erase(passphrase, p); - if (!x) { - r = -ENOMEM; - goto finish; - } - - if (keyname) - (void) add_to_keyring_and_log(keyname, flags, STRV_MAKE(x)); - - *ret = x; - r = 0; - -finish: - if (ttyfd >= 0 && reset_tty) { - loop_write(ttyfd, "\n", 1, false); - tcsetattr(ttyfd, TCSADRAIN, &old_termios); - } - - return r; -} - -static int create_socket(char **name) { - union sockaddr_union sa = { - .un.sun_family = AF_UNIX, - }; - _cleanup_close_ int fd = -1; - static const int one = 1; - char *c; - int r; - - assert(name); - - fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); - if (fd < 0) - return -errno; - - snprintf(sa.un.sun_path, sizeof(sa.un.sun_path)-1, "/run/systemd/ask-password/sck.%" PRIx64, random_u64()); - - RUN_WITH_UMASK(0177) { - if (bind(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) - return -errno; - } - - if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) - return -errno; - - c = strdup(sa.un.sun_path); - if (!c) - return -ENOMEM; - - *name = c; - - r = fd; - fd = -1; - - return r; -} - -int ask_password_agent( - const char *message, - const char *icon, - const char *id, - const char *keyname, - usec_t until, - AskPasswordFlags flags, - char ***ret) { - - enum { - FD_SOCKET, - FD_SIGNAL, - _FD_MAX - }; - - _cleanup_close_ int socket_fd = -1, signal_fd = -1, fd = -1; - char temp[] = "/run/systemd/ask-password/tmp.XXXXXX"; - char final[sizeof(temp)] = ""; - _cleanup_free_ char *socket_name = NULL; - _cleanup_strv_free_ char **l = NULL; - _cleanup_fclose_ FILE *f = NULL; - struct pollfd pollfd[_FD_MAX]; - sigset_t mask, oldmask; - int r; - - assert(ret); - - if (flags & ASK_PASSWORD_NO_AGENT) - return -EUNATCH; - - assert_se(sigemptyset(&mask) >= 0); - assert_se(sigset_add_many(&mask, SIGINT, SIGTERM, -1) >= 0); - assert_se(sigprocmask(SIG_BLOCK, &mask, &oldmask) >= 0); - - (void) mkdir_p_label("/run/systemd/ask-password", 0755); - - fd = mkostemp_safe(temp); - if (fd < 0) { - r = fd; - goto finish; - } - - (void) fchmod(fd, 0644); - - f = fdopen(fd, "w"); - if (!f) { - r = -errno; - goto finish; - } - - fd = -1; - - signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); - if (signal_fd < 0) { - r = -errno; - goto finish; - } - - socket_fd = create_socket(&socket_name); - if (socket_fd < 0) { - r = socket_fd; - goto finish; - } - - fprintf(f, - "[Ask]\n" - "PID="PID_FMT"\n" - "Socket=%s\n" - "AcceptCached=%i\n" - "Echo=%i\n" - "NotAfter="USEC_FMT"\n", - getpid(), - socket_name, - (flags & ASK_PASSWORD_ACCEPT_CACHED) ? 1 : 0, - (flags & ASK_PASSWORD_ECHO) ? 1 : 0, - until); - - if (message) - fprintf(f, "Message=%s\n", message); - - if (icon) - fprintf(f, "Icon=%s\n", icon); - - if (id) - fprintf(f, "Id=%s\n", id); - - r = fflush_and_check(f); - if (r < 0) - goto finish; - - memcpy(final, temp, sizeof(temp)); - - final[sizeof(final)-11] = 'a'; - final[sizeof(final)-10] = 's'; - final[sizeof(final)-9] = 'k'; - - if (rename(temp, final) < 0) { - r = -errno; - goto finish; - } - - zero(pollfd); - pollfd[FD_SOCKET].fd = socket_fd; - pollfd[FD_SOCKET].events = POLLIN; - pollfd[FD_SIGNAL].fd = signal_fd; - pollfd[FD_SIGNAL].events = POLLIN; - - for (;;) { - char passphrase[LINE_MAX+1]; - struct msghdr msghdr; - struct iovec iovec; - struct ucred *ucred; - union { - struct cmsghdr cmsghdr; - uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; - } control; - ssize_t n; - int k; - usec_t t; - - t = now(CLOCK_MONOTONIC); - - if (until > 0 && until <= t) { - r = -ETIME; - goto finish; - } - - k = poll(pollfd, _FD_MAX, until > 0 ? (int) ((until-t)/USEC_PER_MSEC) : -1); - if (k < 0) { - if (errno == EINTR) - continue; - - r = -errno; - goto finish; - } - - if (k <= 0) { - r = -ETIME; - goto finish; - } - - if (pollfd[FD_SIGNAL].revents & POLLIN) { - r = -EINTR; - goto finish; - } - - if (pollfd[FD_SOCKET].revents != POLLIN) { - r = -EIO; - goto finish; - } - - zero(iovec); - iovec.iov_base = passphrase; - iovec.iov_len = sizeof(passphrase); - - zero(control); - zero(msghdr); - msghdr.msg_iov = &iovec; - msghdr.msg_iovlen = 1; - msghdr.msg_control = &control; - msghdr.msg_controllen = sizeof(control); - - n = recvmsg(socket_fd, &msghdr, 0); - if (n < 0) { - if (errno == EAGAIN || - errno == EINTR) - continue; - - r = -errno; - goto finish; - } - - cmsg_close_all(&msghdr); - - if (n <= 0) { - log_debug("Message too short"); - continue; - } - - if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || - control.cmsghdr.cmsg_level != SOL_SOCKET || - control.cmsghdr.cmsg_type != SCM_CREDENTIALS || - control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { - log_debug("Received message without credentials. Ignoring."); - continue; - } - - ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); - if (ucred->uid != 0) { - log_debug("Got request from unprivileged user. Ignoring."); - continue; - } - - if (passphrase[0] == '+') { - /* An empty message refers to the empty password */ - if (n == 1) - l = strv_new("", NULL); - else - l = strv_parse_nulstr(passphrase+1, n-1); - memory_erase(passphrase, n); - if (!l) { - r = -ENOMEM; - goto finish; - } - - if (strv_length(l) <= 0) { - l = strv_free(l); - log_debug("Invalid packet"); - continue; - } - - break; - } - - if (passphrase[0] == '-') { - r = -ECANCELED; - goto finish; - } - - log_debug("Invalid packet"); - } - - if (keyname) - (void) add_to_keyring_and_log(keyname, flags, l); - - *ret = l; - l = NULL; - r = 0; - -finish: - if (socket_name) - (void) unlink(socket_name); - - (void) unlink(temp); - - if (final[0]) - (void) unlink(final); - - assert_se(sigprocmask(SIG_SETMASK, &oldmask, NULL) == 0); - return r; -} - -int ask_password_auto( - const char *message, - const char *icon, - const char *id, - const char *keyname, - usec_t until, - AskPasswordFlags flags, - char ***ret) { - - int r; - - assert(ret); - - if ((flags & ASK_PASSWORD_ACCEPT_CACHED) && keyname) { - r = ask_password_keyring(keyname, flags, ret); - if (r != -ENOKEY) - return r; - } - - if (!(flags & ASK_PASSWORD_NO_TTY) && isatty(STDIN_FILENO)) { - char *s = NULL, **l = NULL; - - r = ask_password_tty(message, keyname, until, flags, NULL, &s); - if (r < 0) - return r; - - r = strv_push(&l, s); - if (r < 0) { - string_erase(s); - free(s); - return -ENOMEM; - } - - *ret = l; - return 0; - } - - if (!(flags & ASK_PASSWORD_NO_AGENT)) - return ask_password_agent(message, icon, id, keyname, until, flags, ret); - - return -EUNATCH; -} diff --git a/src/shared/ask-password-api.h b/src/shared/ask-password-api.h deleted file mode 100644 index 9d7f65130c..0000000000 --- a/src/shared/ask-password-api.h +++ /dev/null @@ -1,38 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 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 "time-util.h" - -typedef enum AskPasswordFlags { - ASK_PASSWORD_ACCEPT_CACHED = 1, - ASK_PASSWORD_PUSH_CACHE = 2, - ASK_PASSWORD_ECHO = 4, /* show the password literally while reading, instead of "*" */ - ASK_PASSWORD_SILENT = 8, /* do no show any password at all while reading */ - ASK_PASSWORD_NO_TTY = 16, - ASK_PASSWORD_NO_AGENT = 32, -} AskPasswordFlags; - -int ask_password_tty(const char *message, const char *keyname, usec_t until, AskPasswordFlags flags, const char *flag_file, char **ret); -int ask_password_agent(const char *message, const char *icon, const char *id, const char *keyname, usec_t until, AskPasswordFlags flag, char ***ret); -int ask_password_keyring(const char *keyname, AskPasswordFlags flags, char ***ret); -int ask_password_auto(const char *message, const char *icon, const char *id, const char *keyname, usec_t until, AskPasswordFlags flag, char ***ret); diff --git a/src/shared/base-filesystem.c b/src/shared/base-filesystem.c deleted file mode 100644 index 59a34a9d11..0000000000 --- a/src/shared/base-filesystem.c +++ /dev/null @@ -1,129 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2014 Kay Sievers - - 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 <stdbool.h> -#include <stdlib.h> -#include <sys/stat.h> -#include <syslog.h> -#include <unistd.h> - -#include "alloc-util.h" -#include "base-filesystem.h" -#include "fd-util.h" -#include "log.h" -#include "macro.h" -#include "string-util.h" -#include "umask-util.h" -#include "user-util.h" -#include "util.h" - -typedef struct BaseFilesystem { - const char *dir; - mode_t mode; - const char *target; - const char *exists; - bool ignore_failure; -} BaseFilesystem; - -static const BaseFilesystem table[] = { - { "bin", 0, "usr/bin\0", NULL }, - { "lib", 0, "usr/lib\0", NULL }, - { "root", 0755, NULL, NULL, true }, - { "sbin", 0, "usr/sbin\0", NULL }, - { "usr", 0755, NULL, NULL }, - { "var", 0755, NULL, NULL }, - { "etc", 0755, NULL, NULL }, -#if defined(__i386__) || defined(__x86_64__) - { "lib64", 0, "usr/lib/x86_64-linux-gnu\0" - "usr/lib64\0", "ld-linux-x86-64.so.2" }, -#endif -}; - -int base_filesystem_create(const char *root, uid_t uid, gid_t gid) { - _cleanup_close_ int fd = -1; - unsigned i; - int r = 0; - - fd = open(root, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); - if (fd < 0) - return log_error_errno(errno, "Failed to open root file system: %m"); - - for (i = 0; i < ELEMENTSOF(table); i ++) { - if (faccessat(fd, table[i].dir, F_OK, AT_SYMLINK_NOFOLLOW) >= 0) - continue; - - if (table[i].target) { - const char *target = NULL, *s; - - /* check if one of the targets exists */ - NULSTR_FOREACH(s, table[i].target) { - if (faccessat(fd, s, F_OK, AT_SYMLINK_NOFOLLOW) < 0) - continue; - - /* check if a specific file exists at the target path */ - if (table[i].exists) { - _cleanup_free_ char *p = NULL; - - p = strjoin(s, "/", table[i].exists, NULL); - if (!p) - return log_oom(); - - if (faccessat(fd, p, F_OK, AT_SYMLINK_NOFOLLOW) < 0) - continue; - } - - target = s; - break; - } - - if (!target) - continue; - - r = symlinkat(target, fd, table[i].dir); - if (r < 0 && errno != EEXIST) - return log_error_errno(errno, "Failed to create symlink at %s/%s: %m", root, table[i].dir); - - if (uid != UID_INVALID || gid != UID_INVALID) { - if (fchownat(fd, table[i].dir, uid, gid, AT_SYMLINK_NOFOLLOW) < 0) - return log_error_errno(errno, "Failed to chown symlink at %s/%s: %m", root, table[i].dir); - } - - continue; - } - - RUN_WITH_UMASK(0000) - r = mkdirat(fd, table[i].dir, table[i].mode); - if (r < 0 && errno != EEXIST) { - log_full_errno(table[i].ignore_failure ? LOG_DEBUG : LOG_ERR, errno, - "Failed to create directory at %s/%s: %m", root, table[i].dir); - - if (!table[i].ignore_failure) - return -errno; - } - - if (uid != UID_INVALID || gid != UID_INVALID) { - if (fchownat(fd, table[i].dir, uid, gid, AT_SYMLINK_NOFOLLOW) < 0) - return log_error_errno(errno, "Failed to chown directory at %s/%s: %m", root, table[i].dir); - } - } - - return 0; -} diff --git a/src/shared/base-filesystem.h b/src/shared/base-filesystem.h deleted file mode 100644 index 49599f0a60..0000000000 --- a/src/shared/base-filesystem.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2014 Kay Sievers - - 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 base_filesystem_create(const char *root, uid_t uid, gid_t gid); diff --git a/src/shared/boot-timestamps.c b/src/shared/boot-timestamps.c deleted file mode 100644 index 7e0152761c..0000000000 --- a/src/shared/boot-timestamps.c +++ /dev/null @@ -1,64 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - Copyright 2013 Kay Sievers - - 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 "acpi-fpdt.h" -#include "boot-timestamps.h" -#include "efivars.h" -#include "macro.h" -#include "time-util.h" - -int boot_timestamps(const dual_timestamp *n, dual_timestamp *firmware, dual_timestamp *loader) { - usec_t x = 0, y = 0, a; - int r; - dual_timestamp _n; - - assert(firmware); - assert(loader); - - if (!n) { - dual_timestamp_get(&_n); - n = &_n; - } - - r = acpi_get_boot_usec(&x, &y); - if (r < 0) { - r = efi_loader_get_boot_usec(&x, &y); - if (r < 0) - return r; - } - - /* Let's convert this to timestamps where the firmware - * began/loader began working. To make this more confusing: - * since usec_t is unsigned and the kernel's monotonic clock - * begins at kernel initialization we'll actually initialize - * the monotonic timestamps here as negative of the actual - * value. */ - - firmware->monotonic = y; - loader->monotonic = y - x; - - a = n->monotonic + firmware->monotonic; - firmware->realtime = n->realtime > a ? n->realtime - a : 0; - - a = n->monotonic + loader->monotonic; - loader->realtime = n->realtime > a ? n->realtime - a : 0; - - return 0; -} diff --git a/src/shared/boot-timestamps.h b/src/shared/boot-timestamps.h deleted file mode 100644 index 6f691026be..0000000000 --- a/src/shared/boot-timestamps.h +++ /dev/null @@ -1,25 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - Copyright 2013 Kay Sievers - - 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-util.h> - -int boot_timestamps(const dual_timestamp *n, dual_timestamp *firmware, dual_timestamp *loader); diff --git a/src/shared/bus-unit-util.c b/src/shared/bus-unit-util.c deleted file mode 100644 index f639e0e832..0000000000 --- a/src/shared/bus-unit-util.c +++ /dev/null @@ -1,1350 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2016 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 "alloc-util.h" -#include "bus-internal.h" -#include "bus-unit-util.h" -#include "bus-util.h" -#include "cgroup-util.h" -#include "env-util.h" -#include "escape.h" -#include "hashmap.h" -#include "list.h" -#include "locale-util.h" -#include "parse-util.h" -#include "path-util.h" -#include "process-util.h" -#include "rlimit-util.h" -#include "signal-util.h" -#include "string-util.h" -#include "syslog-util.h" -#include "terminal-util.h" -#include "utf8.h" -#include "util.h" - -int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u) { - assert(message); - assert(u); - - u->machine = NULL; - - return sd_bus_message_read( - message, - "(ssssssouso)", - &u->id, - &u->description, - &u->load_state, - &u->active_state, - &u->sub_state, - &u->following, - &u->unit_path, - &u->job_id, - &u->job_type, - &u->job_path); -} - -int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment) { - const char *eq, *field; - int r, rl; - - assert(m); - assert(assignment); - - eq = strchr(assignment, '='); - if (!eq) { - log_error("Not an assignment: %s", assignment); - return -EINVAL; - } - - r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); - if (r < 0) - return bus_log_create_error(r); - - field = strndupa(assignment, eq - assignment); - eq++; - - if (streq(field, "CPUQuota")) { - - if (isempty(eq)) - r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", USEC_INFINITY); - else { - r = parse_percent_unbounded(eq); - if (r <= 0) { - log_error_errno(r, "CPU quota '%s' invalid.", eq); - return -EINVAL; - } - - r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", (usec_t) r * USEC_PER_SEC / 100U); - } - - goto finish; - - } else if (streq(field, "EnvironmentFile")) { - - r = sd_bus_message_append(m, "sv", "EnvironmentFiles", "a(sb)", 1, - eq[0] == '-' ? eq + 1 : eq, - eq[0] == '-'); - goto finish; - - } else if (STR_IN_SET(field, "AccuracySec", "RandomizedDelaySec", "RuntimeMaxSec")) { - char *n; - usec_t t; - size_t l; - - r = parse_sec(eq, &t); - if (r < 0) - return log_error_errno(r, "Failed to parse %s= parameter: %s", field, eq); - - l = strlen(field); - n = newa(char, l + 2); - if (!n) - return log_oom(); - - /* Change suffix Sec → USec */ - strcpy(mempcpy(n, field, l - 3), "USec"); - r = sd_bus_message_append(m, "sv", n, "t", t); - goto finish; - - } else if (STR_IN_SET(field, "MemoryLow", "MemoryHigh", "MemoryMax", "MemoryLimit")) { - uint64_t bytes; - - if (isempty(eq) || streq(eq, "infinity")) - bytes = CGROUP_LIMIT_MAX; - else { - r = parse_percent(eq); - if (r >= 0) { - char *n; - - /* When this is a percentage we'll convert this into a relative value in the range - * 0…UINT32_MAX and pass it in the MemoryLowScale property (and related - * ones). This way the physical memory size can be determined server-side */ - - n = strjoina(field, "Scale"); - r = sd_bus_message_append(m, "sv", n, "u", (uint32_t) (((uint64_t) UINT32_MAX * r) / 100U)); - goto finish; - - } else { - r = parse_size(eq, 1024, &bytes); - if (r < 0) - return log_error_errno(r, "Failed to parse bytes specification %s", assignment); - } - } - - r = sd_bus_message_append(m, "sv", field, "t", bytes); - goto finish; - } else if (streq(field, "TasksMax")) { - uint64_t t; - - if (isempty(eq) || streq(eq, "infinity")) - t = (uint64_t) -1; - else { - r = parse_percent(eq); - if (r >= 0) { - r = sd_bus_message_append(m, "sv", "TasksMaxScale", "u", (uint32_t) (((uint64_t) UINT32_MAX * r) / 100U)); - goto finish; - } else { - r = safe_atou64(eq, &t); - if (r < 0) - return log_error_errno(r, "Failed to parse maximum tasks specification %s", assignment); - } - - } - - r = sd_bus_message_append(m, "sv", "TasksMax", "t", t); - goto finish; - } - - r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); - if (r < 0) - return bus_log_create_error(r); - - rl = rlimit_from_string(field); - if (rl >= 0) { - const char *sn; - struct rlimit l; - - r = rlimit_parse(rl, eq, &l); - if (r < 0) - return log_error_errno(r, "Failed to parse resource limit: %s", eq); - - r = sd_bus_message_append(m, "v", "t", l.rlim_max); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_close_container(m); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); - if (r < 0) - return bus_log_create_error(r); - - sn = strjoina(field, "Soft"); - r = sd_bus_message_append(m, "sv", sn, "t", l.rlim_cur); - - } else if (STR_IN_SET(field, - "CPUAccounting", "MemoryAccounting", "IOAccounting", "BlockIOAccounting", "TasksAccounting", - "SendSIGHUP", "SendSIGKILL", "WakeSystem", "DefaultDependencies", - "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "RemainAfterExit", - "PrivateTmp", "PrivateDevices", "PrivateNetwork", "PrivateUsers", "NoNewPrivileges", - "SyslogLevelPrefix", "Delegate", "RemainAfterElapse", "MemoryDenyWriteExecute", - "RestrictRealtime", "DynamicUser", "RemoveIPC", "ProtectKernelTunables", - "ProtectKernelModules", "ProtectControlGroups")) { - - r = parse_boolean(eq); - if (r < 0) - return log_error_errno(r, "Failed to parse boolean assignment %s.", assignment); - - r = sd_bus_message_append(m, "v", "b", r); - - } else if (STR_IN_SET(field, "CPUWeight", "StartupCPUWeight")) { - uint64_t u; - - r = cg_weight_parse(eq, &u); - if (r < 0) { - log_error("Failed to parse %s value %s.", field, eq); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "t", u); - - } else if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) { - uint64_t u; - - r = cg_cpu_shares_parse(eq, &u); - if (r < 0) { - log_error("Failed to parse %s value %s.", field, eq); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "t", u); - - } else if (STR_IN_SET(field, "IOWeight", "StartupIOWeight")) { - uint64_t u; - - r = cg_weight_parse(eq, &u); - if (r < 0) { - log_error("Failed to parse %s value %s.", field, eq); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "t", u); - - } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) { - uint64_t u; - - r = cg_blkio_weight_parse(eq, &u); - if (r < 0) { - log_error("Failed to parse %s value %s.", field, eq); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "t", u); - - } else if (STR_IN_SET(field, - "User", "Group", "DevicePolicy", "KillMode", - "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath", - "StandardInput", "StandardOutput", "StandardError", - "Description", "Slice", "Type", "WorkingDirectory", - "RootDirectory", "SyslogIdentifier", "ProtectSystem", - "ProtectHome", "SELinuxContext")) - r = sd_bus_message_append(m, "v", "s", eq); - - else if (streq(field, "SyslogLevel")) { - int level; - - level = log_level_from_string(eq); - if (level < 0) { - log_error("Failed to parse %s value %s.", field, eq); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "i", level); - - } else if (streq(field, "SyslogFacility")) { - int facility; - - facility = log_facility_unshifted_from_string(eq); - if (facility < 0) { - log_error("Failed to parse %s value %s.", field, eq); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "i", facility); - - } else if (streq(field, "DeviceAllow")) { - - if (isempty(eq)) - r = sd_bus_message_append(m, "v", "a(ss)", 0); - else { - const char *path, *rwm, *e; - - e = strchr(eq, ' '); - if (e) { - path = strndupa(eq, e - eq); - rwm = e+1; - } else { - path = eq; - rwm = ""; - } - - if (!is_deviceallow_pattern(path)) { - log_error("%s is not a device file in /dev.", path); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm); - } - - } else if (cgroup_io_limit_type_from_string(field) >= 0 || STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { - - if (isempty(eq)) - r = sd_bus_message_append(m, "v", "a(st)", 0); - else { - const char *path, *bandwidth, *e; - uint64_t bytes; - - e = strchr(eq, ' '); - if (e) { - path = strndupa(eq, e - eq); - bandwidth = e+1; - } else { - log_error("Failed to parse %s value %s.", field, eq); - return -EINVAL; - } - - if (!path_startswith(path, "/dev")) { - log_error("%s is not a device file in /dev.", path); - return -EINVAL; - } - - if (streq(bandwidth, "infinity")) { - bytes = CGROUP_LIMIT_MAX; - } else { - r = parse_size(bandwidth, 1000, &bytes); - if (r < 0) { - log_error("Failed to parse byte value %s.", bandwidth); - return -EINVAL; - } - } - - r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes); - } - - } else if (STR_IN_SET(field, "IODeviceWeight", "BlockIODeviceWeight")) { - - if (isempty(eq)) - r = sd_bus_message_append(m, "v", "a(st)", 0); - else { - const char *path, *weight, *e; - uint64_t u; - - e = strchr(eq, ' '); - if (e) { - path = strndupa(eq, e - eq); - weight = e+1; - } else { - log_error("Failed to parse %s value %s.", field, eq); - return -EINVAL; - } - - if (!path_startswith(path, "/dev")) { - log_error("%s is not a device file in /dev.", path); - return -EINVAL; - } - - r = safe_atou64(weight, &u); - if (r < 0) { - log_error("Failed to parse %s value %s.", field, weight); - return -EINVAL; - } - r = sd_bus_message_append(m, "v", "a(st)", 1, path, u); - } - - } else if (streq(field, "Nice")) { - int n; - - r = parse_nice(eq, &n); - if (r < 0) - return log_error_errno(r, "Failed to parse nice value: %s", eq); - - r = sd_bus_message_append(m, "v", "i", (int32_t) n); - - } else if (STR_IN_SET(field, "Environment", "PassEnvironment")) { - const char *p; - - r = sd_bus_message_open_container(m, 'v', "as"); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_open_container(m, 'a', "s"); - if (r < 0) - return bus_log_create_error(r); - - p = eq; - - for (;;) { - _cleanup_free_ char *word = NULL; - - r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); - if (r < 0) { - log_error("Failed to parse Environment value %s", eq); - return -EINVAL; - } - if (r == 0) - break; - - if (streq(field, "Environment")) { - if (!env_assignment_is_valid(word)) { - log_error("Invalid environment assignment: %s", word); - return -EINVAL; - } - } else { /* PassEnvironment */ - if (!env_name_is_valid(word)) { - log_error("Invalid environment variable name: %s", word); - return -EINVAL; - } - } - - r = sd_bus_message_append_basic(m, 's', word); - if (r < 0) - return bus_log_create_error(r); - } - - r = sd_bus_message_close_container(m); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_close_container(m); - - } else if (streq(field, "KillSignal")) { - int sig; - - sig = signal_from_string_try_harder(eq); - if (sig < 0) { - log_error("Failed to parse %s value %s.", field, eq); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "i", sig); - - } else if (streq(field, "TimerSlackNSec")) { - nsec_t n; - - r = parse_nsec(eq, &n); - if (r < 0) { - log_error("Failed to parse %s value %s", field, eq); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "t", n); - } else if (streq(field, "OOMScoreAdjust")) { - int oa; - - r = safe_atoi(eq, &oa); - if (r < 0) { - log_error("Failed to parse %s value %s", field, eq); - return -EINVAL; - } - - if (!oom_score_adjust_is_valid(oa)) { - log_error("OOM score adjust value out of range"); - return -EINVAL; - } - - r = sd_bus_message_append(m, "v", "i", oa); - } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories", - "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) { - const char *p; - - r = sd_bus_message_open_container(m, 'v', "as"); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_open_container(m, 'a', "s"); - if (r < 0) - return bus_log_create_error(r); - - p = eq; - - for (;;) { - _cleanup_free_ char *word = NULL; - int offset; - - r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); - if (r < 0) { - log_error("Failed to parse %s value %s", field, eq); - return -EINVAL; - } - if (r == 0) - break; - - if (!utf8_is_valid(word)) { - log_error("Failed to parse %s value %s", field, eq); - return -EINVAL; - } - - offset = word[0] == '-'; - if (!path_is_absolute(word + offset)) { - log_error("Failed to parse %s value %s", field, eq); - return -EINVAL; - } - - path_kill_slashes(word + offset); - - r = sd_bus_message_append_basic(m, 's', word); - if (r < 0) - return bus_log_create_error(r); - } - - r = sd_bus_message_close_container(m); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_close_container(m); - - } else if (streq(field, "RuntimeDirectory")) { - const char *p; - - r = sd_bus_message_open_container(m, 'v', "as"); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_open_container(m, 'a', "s"); - if (r < 0) - return bus_log_create_error(r); - - p = eq; - - for (;;) { - _cleanup_free_ char *word = NULL; - - r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); - if (r < 0) - return log_error_errno(r, "Failed to parse %s value %s", field, eq); - - if (r == 0) - break; - - r = sd_bus_message_append_basic(m, 's', word); - if (r < 0) - return bus_log_create_error(r); - } - - r = sd_bus_message_close_container(m); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_close_container(m); - - } else { - log_error("Unknown assignment %s.", assignment); - return -EINVAL; - } - -finish: - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_close_container(m); - if (r < 0) - return bus_log_create_error(r); - - return 0; -} - -int bus_append_unit_property_assignment_many(sd_bus_message *m, char **l) { - char **i; - int r; - - assert(m); - - STRV_FOREACH(i, l) { - r = bus_append_unit_property_assignment(m, *i); - if (r < 0) - return r; - } - - return 0; -} - -typedef struct BusWaitForJobs { - sd_bus *bus; - Set *jobs; - - char *name; - char *result; - - sd_bus_slot *slot_job_removed; - sd_bus_slot *slot_disconnected; -} BusWaitForJobs; - -static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) { - assert(m); - - log_error("Warning! D-Bus connection terminated."); - sd_bus_close(sd_bus_message_get_bus(m)); - - return 0; -} - -static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) { - const char *path, *unit, *result; - BusWaitForJobs *d = userdata; - uint32_t id; - char *found; - int r; - - assert(m); - assert(d); - - r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result); - if (r < 0) { - bus_log_parse_error(r); - return 0; - } - - found = set_remove(d->jobs, (char*) path); - if (!found) - return 0; - - free(found); - - if (!isempty(result)) - d->result = strdup(result); - - if (!isempty(unit)) - d->name = strdup(unit); - - return 0; -} - -void bus_wait_for_jobs_free(BusWaitForJobs *d) { - if (!d) - return; - - set_free_free(d->jobs); - - sd_bus_slot_unref(d->slot_disconnected); - sd_bus_slot_unref(d->slot_job_removed); - - sd_bus_unref(d->bus); - - free(d->name); - free(d->result); - - free(d); -} - -int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) { - _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL; - int r; - - assert(bus); - assert(ret); - - d = new0(BusWaitForJobs, 1); - if (!d) - return -ENOMEM; - - d->bus = sd_bus_ref(bus); - - /* When we are a bus client we match by sender. Direct - * connections OTOH have no initialized sender field, and - * hence we ignore the sender then */ - r = sd_bus_add_match( - bus, - &d->slot_job_removed, - bus->bus_client ? - "type='signal'," - "sender='org.freedesktop.systemd1'," - "interface='org.freedesktop.systemd1.Manager'," - "member='JobRemoved'," - "path='/org/freedesktop/systemd1'" : - "type='signal'," - "interface='org.freedesktop.systemd1.Manager'," - "member='JobRemoved'," - "path='/org/freedesktop/systemd1'", - match_job_removed, d); - if (r < 0) - return r; - - r = sd_bus_add_match( - bus, - &d->slot_disconnected, - "type='signal'," - "sender='org.freedesktop.DBus.Local'," - "interface='org.freedesktop.DBus.Local'," - "member='Disconnected'", - match_disconnected, d); - if (r < 0) - return r; - - *ret = d; - d = NULL; - - return 0; -} - -static int bus_process_wait(sd_bus *bus) { - int r; - - for (;;) { - r = sd_bus_process(bus, NULL); - if (r < 0) - return r; - if (r > 0) - return 0; - - r = sd_bus_wait(bus, (uint64_t) -1); - if (r < 0) - return r; - } -} - -static int bus_job_get_service_result(BusWaitForJobs *d, char **result) { - _cleanup_free_ char *dbus_path = NULL; - - assert(d); - assert(d->name); - assert(result); - - dbus_path = unit_dbus_path_from_name(d->name); - if (!dbus_path) - return -ENOMEM; - - return sd_bus_get_property_string(d->bus, - "org.freedesktop.systemd1", - dbus_path, - "org.freedesktop.systemd1.Service", - "Result", - NULL, - result); -} - -static const struct { - const char *result, *explanation; -} explanations [] = { - { "resources", "of unavailable resources or another system error" }, - { "timeout", "a timeout was exceeded" }, - { "exit-code", "the control process exited with error code" }, - { "signal", "a fatal signal was delivered to the control process" }, - { "core-dump", "a fatal signal was delivered causing the control process to dump core" }, - { "watchdog", "the service failed to send watchdog ping" }, - { "start-limit", "start of the service was attempted too often" } -}; - -static void log_job_error_with_service_result(const char* service, const char *result, const char* const* extra_args) { - _cleanup_free_ char *service_shell_quoted = NULL; - const char *systemctl = "systemctl", *journalctl = "journalctl"; - - assert(service); - - service_shell_quoted = shell_maybe_quote(service); - - if (extra_args && extra_args[1]) { - _cleanup_free_ char *t; - - t = strv_join((char**) extra_args, " "); - systemctl = strjoina("systemctl ", t ? : "<args>"); - journalctl = strjoina("journalctl ", t ? : "<args>"); - } - - if (!isempty(result)) { - unsigned i; - - for (i = 0; i < ELEMENTSOF(explanations); ++i) - if (streq(result, explanations[i].result)) - break; - - if (i < ELEMENTSOF(explanations)) { - log_error("Job for %s failed because %s.\n" - "See \"%s status %s\" and \"%s -xe\" for details.\n", - service, - explanations[i].explanation, - systemctl, - service_shell_quoted ?: "<service>", - journalctl); - goto finish; - } - } - - log_error("Job for %s failed.\n" - "See \"%s status %s\" and \"%s -xe\" for details.\n", - service, - systemctl, - service_shell_quoted ?: "<service>", - journalctl); - -finish: - /* For some results maybe additional explanation is required */ - if (streq_ptr(result, "start-limit")) - log_info("To force a start use \"%1$s reset-failed %2$s\"\n" - "followed by \"%1$s start %2$s\" again.", - systemctl, - service_shell_quoted ?: "<service>"); -} - -static int check_wait_response(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { - int r = 0; - - assert(d->result); - - if (!quiet) { - if (streq(d->result, "canceled")) - log_error("Job for %s canceled.", strna(d->name)); - else if (streq(d->result, "timeout")) - log_error("Job for %s timed out.", strna(d->name)); - else if (streq(d->result, "dependency")) - log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name)); - else if (streq(d->result, "invalid")) - log_error("%s is not active, cannot reload.", strna(d->name)); - else if (streq(d->result, "assert")) - log_error("Assertion failed on job for %s.", strna(d->name)); - else if (streq(d->result, "unsupported")) - log_error("Operation on or unit type of %s not supported on this system.", strna(d->name)); - else if (!streq(d->result, "done") && !streq(d->result, "skipped")) { - if (d->name) { - int q; - _cleanup_free_ char *result = NULL; - - q = bus_job_get_service_result(d, &result); - if (q < 0) - log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name); - - log_job_error_with_service_result(d->name, result, extra_args); - } else - log_error("Job failed. See \"journalctl -xe\" for details."); - } - } - - if (streq(d->result, "canceled")) - r = -ECANCELED; - else if (streq(d->result, "timeout")) - r = -ETIME; - else if (streq(d->result, "dependency")) - r = -EIO; - else if (streq(d->result, "invalid")) - r = -ENOEXEC; - else if (streq(d->result, "assert")) - r = -EPROTO; - else if (streq(d->result, "unsupported")) - r = -EOPNOTSUPP; - else if (!streq(d->result, "done") && !streq(d->result, "skipped")) - r = -EIO; - - return r; -} - -int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { - int r = 0; - - assert(d); - - while (!set_isempty(d->jobs)) { - int q; - - q = bus_process_wait(d->bus); - if (q < 0) - return log_error_errno(q, "Failed to wait for response: %m"); - - if (d->result) { - q = check_wait_response(d, quiet, extra_args); - /* Return the first error as it is most likely to be - * meaningful. */ - if (q < 0 && r == 0) - r = q; - - log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name)); - } - - d->name = mfree(d->name); - d->result = mfree(d->result); - } - - return r; -} - -int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) { - int r; - - assert(d); - - r = set_ensure_allocated(&d->jobs, &string_hash_ops); - if (r < 0) - return r; - - return set_put_strdup(d->jobs, path); -} - -int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) { - int r; - - r = bus_wait_for_jobs_add(d, path); - if (r < 0) - return log_oom(); - - return bus_wait_for_jobs(d, quiet, NULL); -} - -int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) { - const char *type, *path, *source; - int r; - - /* changes is dereferenced when calling unit_file_dump_changes() later, - * so we have to make sure this is not NULL. */ - assert(changes); - assert(n_changes); - - r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)"); - if (r < 0) - return bus_log_parse_error(r); - - while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) { - /* We expect only "success" changes to be sent over the bus. - Hence, reject anything negative. */ - UnitFileChangeType ch = unit_file_change_type_from_string(type); - - if (ch < 0) { - log_notice("Manager reported unknown change type \"%s\" for path \"%s\", ignoring.", type, path); - continue; - } - - r = unit_file_changes_add(changes, n_changes, ch, path, source); - if (r < 0) - return r; - } - if (r < 0) - return bus_log_parse_error(r); - - r = sd_bus_message_exit_container(m); - if (r < 0) - return bus_log_parse_error(r); - - unit_file_dump_changes(0, NULL, *changes, *n_changes, false); - return 0; -} - -struct CGroupInfo { - char *cgroup_path; - bool is_const; /* If false, cgroup_path should be free()'d */ - - Hashmap *pids; /* PID → process name */ - bool done; - - struct CGroupInfo *parent; - LIST_FIELDS(struct CGroupInfo, siblings); - LIST_HEAD(struct CGroupInfo, children); - size_t n_children; -}; - -static bool IS_ROOT(const char *p) { - return isempty(p) || streq(p, "/"); -} - -static int add_cgroup(Hashmap *cgroups, const char *path, bool is_const, struct CGroupInfo **ret) { - struct CGroupInfo *parent = NULL, *cg; - int r; - - assert(cgroups); - assert(ret); - - if (IS_ROOT(path)) - path = "/"; - - cg = hashmap_get(cgroups, path); - if (cg) { - *ret = cg; - return 0; - } - - if (!IS_ROOT(path)) { - const char *e, *pp; - - e = strrchr(path, '/'); - if (!e) - return -EINVAL; - - pp = strndupa(path, e - path); - if (!pp) - return -ENOMEM; - - r = add_cgroup(cgroups, pp, false, &parent); - if (r < 0) - return r; - } - - cg = new0(struct CGroupInfo, 1); - if (!cg) - return -ENOMEM; - - if (is_const) - cg->cgroup_path = (char*) path; - else { - cg->cgroup_path = strdup(path); - if (!cg->cgroup_path) { - free(cg); - return -ENOMEM; - } - } - - cg->is_const = is_const; - cg->parent = parent; - - r = hashmap_put(cgroups, cg->cgroup_path, cg); - if (r < 0) { - if (!is_const) - free(cg->cgroup_path); - free(cg); - return r; - } - - if (parent) { - LIST_PREPEND(siblings, parent->children, cg); - parent->n_children++; - } - - *ret = cg; - return 1; -} - -static int add_process( - Hashmap *cgroups, - const char *path, - pid_t pid, - const char *name) { - - struct CGroupInfo *cg; - int r; - - assert(cgroups); - assert(name); - assert(pid > 0); - - r = add_cgroup(cgroups, path, true, &cg); - if (r < 0) - return r; - - r = hashmap_ensure_allocated(&cg->pids, &trivial_hash_ops); - if (r < 0) - return r; - - return hashmap_put(cg->pids, PID_TO_PTR(pid), (void*) name); -} - -static void remove_cgroup(Hashmap *cgroups, struct CGroupInfo *cg) { - assert(cgroups); - assert(cg); - - while (cg->children) - remove_cgroup(cgroups, cg->children); - - hashmap_remove(cgroups, cg->cgroup_path); - - if (!cg->is_const) - free(cg->cgroup_path); - - hashmap_free(cg->pids); - - if (cg->parent) - LIST_REMOVE(siblings, cg->parent->children, cg); - - free(cg); -} - -static int cgroup_info_compare_func(const void *a, const void *b) { - const struct CGroupInfo *x = *(const struct CGroupInfo* const*) a, *y = *(const struct CGroupInfo* const*) b; - - assert(x); - assert(y); - - return strcmp(x->cgroup_path, y->cgroup_path); -} - -static int dump_processes( - Hashmap *cgroups, - const char *cgroup_path, - const char *prefix, - unsigned n_columns, - OutputFlags flags) { - - struct CGroupInfo *cg; - int r; - - assert(prefix); - - if (IS_ROOT(cgroup_path)) - cgroup_path = "/"; - - cg = hashmap_get(cgroups, cgroup_path); - if (!cg) - return 0; - - if (!hashmap_isempty(cg->pids)) { - const char *name; - size_t n = 0, i; - pid_t *pids; - void *pidp; - Iterator j; - int width; - - /* Order processes by their PID */ - pids = newa(pid_t, hashmap_size(cg->pids)); - - HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) - pids[n++] = PTR_TO_PID(pidp); - - assert(n == hashmap_size(cg->pids)); - qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); - - width = DECIMAL_STR_WIDTH(pids[n-1]); - - for (i = 0; i < n; i++) { - _cleanup_free_ char *e = NULL; - const char *special; - bool more; - - name = hashmap_get(cg->pids, PID_TO_PTR(pids[i])); - assert(name); - - if (n_columns != 0) { - unsigned k; - - k = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); - - e = ellipsize(name, k, 100); - if (e) - name = e; - } - - more = i+1 < n || cg->children; - special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); - - fprintf(stdout, "%s%s%*"PID_PRI" %s\n", - prefix, - special, - width, pids[i], - name); - } - } - - if (cg->children) { - struct CGroupInfo **children, *child; - size_t n = 0, i; - - /* Order subcgroups by their name */ - children = newa(struct CGroupInfo*, cg->n_children); - LIST_FOREACH(siblings, child, cg->children) - children[n++] = child; - assert(n == cg->n_children); - qsort_safe(children, n, sizeof(struct CGroupInfo*), cgroup_info_compare_func); - - if (n_columns != 0) - n_columns = MAX(LESS_BY(n_columns, 2U), 20U); - - for (i = 0; i < n; i++) { - _cleanup_free_ char *pp = NULL; - const char *name, *special; - bool more; - - child = children[i]; - - name = strrchr(child->cgroup_path, '/'); - if (!name) - return -EINVAL; - name++; - - more = i+1 < n; - special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); - - fputs(prefix, stdout); - fputs(special, stdout); - fputs(name, stdout); - fputc('\n', stdout); - - special = special_glyph(more ? TREE_VERTICAL : TREE_SPACE); - - pp = strappend(prefix, special); - if (!pp) - return -ENOMEM; - - r = dump_processes(cgroups, child->cgroup_path, pp, n_columns, flags); - if (r < 0) - return r; - } - } - - cg->done = true; - return 0; -} - -static int dump_extra_processes( - Hashmap *cgroups, - const char *prefix, - unsigned n_columns, - OutputFlags flags) { - - _cleanup_free_ pid_t *pids = NULL; - _cleanup_hashmap_free_ Hashmap *names = NULL; - struct CGroupInfo *cg; - size_t n_allocated = 0, n = 0, k; - Iterator i; - int width, r; - - /* Prints the extra processes, i.e. those that are in cgroups we haven't displayed yet. We show them as - * combined, sorted, linear list. */ - - HASHMAP_FOREACH(cg, cgroups, i) { - const char *name; - void *pidp; - Iterator j; - - if (cg->done) - continue; - - if (hashmap_isempty(cg->pids)) - continue; - - r = hashmap_ensure_allocated(&names, &trivial_hash_ops); - if (r < 0) - return r; - - if (!GREEDY_REALLOC(pids, n_allocated, n + hashmap_size(cg->pids))) - return -ENOMEM; - - HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) { - pids[n++] = PTR_TO_PID(pidp); - - r = hashmap_put(names, pidp, (void*) name); - if (r < 0) - return r; - } - } - - if (n == 0) - return 0; - - qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); - width = DECIMAL_STR_WIDTH(pids[n-1]); - - for (k = 0; k < n; k++) { - _cleanup_free_ char *e = NULL; - const char *name; - - name = hashmap_get(names, PID_TO_PTR(pids[k])); - assert(name); - - if (n_columns != 0) { - unsigned z; - - z = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); - - e = ellipsize(name, z, 100); - if (e) - name = e; - } - - fprintf(stdout, "%s%s %*" PID_PRI " %s\n", - prefix, - special_glyph(TRIANGULAR_BULLET), - width, pids[k], - name); - } - - return 0; -} - -int unit_show_processes( - sd_bus *bus, - const char *unit, - const char *cgroup_path, - const char *prefix, - unsigned n_columns, - OutputFlags flags, - sd_bus_error *error) { - - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - Hashmap *cgroups = NULL; - struct CGroupInfo *cg; - int r; - - assert(bus); - assert(unit); - - if (flags & OUTPUT_FULL_WIDTH) - n_columns = 0; - else if (n_columns <= 0) - n_columns = columns(); - - prefix = strempty(prefix); - - r = sd_bus_call_method( - bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "GetUnitProcesses", - error, - &reply, - "s", - unit); - if (r < 0) - return r; - - cgroups = hashmap_new(&string_hash_ops); - if (!cgroups) - return -ENOMEM; - - r = sd_bus_message_enter_container(reply, 'a', "(sus)"); - if (r < 0) - goto finish; - - for (;;) { - const char *path = NULL, *name = NULL; - uint32_t pid; - - r = sd_bus_message_read(reply, "(sus)", &path, &pid, &name); - if (r < 0) - goto finish; - if (r == 0) - break; - - r = add_process(cgroups, path, pid, name); - if (r < 0) - goto finish; - } - - r = sd_bus_message_exit_container(reply); - if (r < 0) - goto finish; - - r = dump_processes(cgroups, cgroup_path, prefix, n_columns, flags); - if (r < 0) - goto finish; - - r = dump_extra_processes(cgroups, prefix, n_columns, flags); - -finish: - while ((cg = hashmap_first(cgroups))) - remove_cgroup(cgroups, cg); - - hashmap_free(cgroups); - - return r; -} diff --git a/src/shared/bus-unit-util.h b/src/shared/bus-unit-util.h deleted file mode 100644 index d102ea180e..0000000000 --- a/src/shared/bus-unit-util.h +++ /dev/null @@ -1,58 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2016 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 "sd-bus.h" - -#include "output-mode.h" -#include "install.h" - -typedef struct UnitInfo { - const char *machine; - const char *id; - const char *description; - const char *load_state; - const char *active_state; - const char *sub_state; - const char *following; - const char *unit_path; - uint32_t job_id; - const char *job_type; - const char *job_path; -} UnitInfo; - -int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u); - -int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment); -int bus_append_unit_property_assignment_many(sd_bus_message *m, char **l); - -typedef struct BusWaitForJobs BusWaitForJobs; - -int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret); -void bus_wait_for_jobs_free(BusWaitForJobs *d); -int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path); -int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args); -int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet); - -DEFINE_TRIVIAL_CLEANUP_FUNC(BusWaitForJobs*, bus_wait_for_jobs_free); - -int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes); - -int unit_show_processes(sd_bus *bus, const char *unit, const char *cgroup_path, const char *prefix, unsigned n_columns, OutputFlags flags, sd_bus_error *error); diff --git a/src/shared/bus-util.c b/src/shared/bus-util.c deleted file mode 100644 index bb90c89cc2..0000000000 --- a/src/shared/bus-util.c +++ /dev/null @@ -1,1567 +0,0 @@ -/*** - 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 <errno.h> -#include <fcntl.h> -#include <inttypes.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/ioctl.h> -#include <sys/resource.h> -#include <sys/socket.h> -#include <unistd.h> - -#include "sd-bus-protocol.h" -#include "sd-bus.h" -#include "sd-daemon.h" -#include "sd-event.h" -#include "sd-id128.h" - -#include "alloc-util.h" -#include "bus-internal.h" -#include "bus-label.h" -#include "bus-message.h" -#include "bus-util.h" -#include "def.h" -#include "escape.h" -#include "fd-util.h" -#include "missing.h" -#include "parse-util.h" -#include "proc-cmdline.h" -#include "rlimit-util.h" -#include "stdio-util.h" -#include "strv.h" -#include "user-util.h" - -static int name_owner_change_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { - sd_event *e = userdata; - - assert(m); - assert(e); - - sd_bus_close(sd_bus_message_get_bus(m)); - sd_event_exit(e, 0); - - return 1; -} - -int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name) { - _cleanup_free_ char *match = NULL; - const char *unique; - int r; - - assert(e); - assert(bus); - assert(name); - - /* We unregister the name here and then wait for the - * NameOwnerChanged signal for this event to arrive before we - * quit. We do this in order to make sure that any queued - * requests are still processed before we really exit. */ - - r = sd_bus_get_unique_name(bus, &unique); - if (r < 0) - return r; - - r = asprintf(&match, - "sender='org.freedesktop.DBus'," - "type='signal'," - "interface='org.freedesktop.DBus'," - "member='NameOwnerChanged'," - "path='/org/freedesktop/DBus'," - "arg0='%s'," - "arg1='%s'," - "arg2=''", name, unique); - if (r < 0) - return -ENOMEM; - - r = sd_bus_add_match(bus, NULL, match, name_owner_change_callback, e); - if (r < 0) - return r; - - r = sd_bus_release_name(bus, name); - if (r < 0) - return r; - - return 0; -} - -int bus_event_loop_with_idle( - sd_event *e, - sd_bus *bus, - const char *name, - usec_t timeout, - check_idle_t check_idle, - void *userdata) { - bool exiting = false; - int r, code; - - assert(e); - assert(bus); - assert(name); - - for (;;) { - bool idle; - - r = sd_event_get_state(e); - if (r < 0) - return r; - if (r == SD_EVENT_FINISHED) - break; - - if (check_idle) - idle = check_idle(userdata); - else - idle = true; - - r = sd_event_run(e, exiting || !idle ? (uint64_t) -1 : timeout); - if (r < 0) - return r; - - if (r == 0 && !exiting && idle) { - - r = sd_bus_try_close(bus); - if (r == -EBUSY) - continue; - - /* Fallback for dbus1 connections: we - * unregister the name and wait for the - * response to come through for it */ - if (r == -EOPNOTSUPP) { - - /* Inform the service manager that we - * are going down, so that it will - * queue all further start requests, - * instead of assuming we are already - * running. */ - sd_notify(false, "STOPPING=1"); - - r = bus_async_unregister_and_exit(e, bus, name); - if (r < 0) - return r; - - exiting = true; - continue; - } - - if (r < 0) - return r; - - sd_event_exit(e, 0); - break; - } - } - - r = sd_event_get_exit_code(e, &code); - if (r < 0) - return r; - - return code; -} - -int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *rep = NULL; - int r, has_owner = 0; - - assert(c); - assert(name); - - r = sd_bus_call_method(c, - "org.freedesktop.DBus", - "/org/freedesktop/dbus", - "org.freedesktop.DBus", - "NameHasOwner", - error, - &rep, - "s", - name); - if (r < 0) - return r; - - r = sd_bus_message_read_basic(rep, 'b', &has_owner); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - return has_owner; -} - -static int check_good_user(sd_bus_message *m, uid_t good_user) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - uid_t sender_uid; - int r; - - assert(m); - - if (good_user == UID_INVALID) - return 0; - - r = sd_bus_query_sender_creds(m, SD_BUS_CREDS_EUID, &creds); - if (r < 0) - return r; - - /* Don't trust augmented credentials for authorization */ - assert_return((sd_bus_creds_get_augmented_mask(creds) & SD_BUS_CREDS_EUID) == 0, -EPERM); - - r = sd_bus_creds_get_euid(creds, &sender_uid); - if (r < 0) - return r; - - return sender_uid == good_user; -} - -int bus_test_polkit( - sd_bus_message *call, - int capability, - const char *action, - const char **details, - uid_t good_user, - bool *_challenge, - sd_bus_error *e) { - - int r; - - assert(call); - assert(action); - - /* Tests non-interactively! */ - - r = check_good_user(call, good_user); - if (r != 0) - return r; - - r = sd_bus_query_sender_privilege(call, capability); - if (r < 0) - return r; - else if (r > 0) - return 1; -#ifdef ENABLE_POLKIT - else { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *request = NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - int authorized = false, challenge = false; - const char *sender, **k, **v; - - sender = sd_bus_message_get_sender(call); - if (!sender) - return -EBADMSG; - - r = sd_bus_message_new_method_call( - call->bus, - &request, - "org.freedesktop.PolicyKit1", - "/org/freedesktop/PolicyKit1/Authority", - "org.freedesktop.PolicyKit1.Authority", - "CheckAuthorization"); - if (r < 0) - return r; - - r = sd_bus_message_append( - request, - "(sa{sv})s", - "system-bus-name", 1, "name", "s", sender, - action); - if (r < 0) - return r; - - r = sd_bus_message_open_container(request, 'a', "{ss}"); - if (r < 0) - return r; - - STRV_FOREACH_PAIR(k, v, details) { - r = sd_bus_message_append(request, "{ss}", *k, *v); - if (r < 0) - return r; - } - - r = sd_bus_message_close_container(request); - if (r < 0) - return r; - - r = sd_bus_message_append(request, "us", 0, NULL); - if (r < 0) - return r; - - r = sd_bus_call(call->bus, request, 0, e, &reply); - if (r < 0) { - /* Treat no PK available as access denied */ - if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) { - sd_bus_error_free(e); - return -EACCES; - } - - return r; - } - - r = sd_bus_message_enter_container(reply, 'r', "bba{ss}"); - if (r < 0) - return r; - - r = sd_bus_message_read(reply, "bb", &authorized, &challenge); - if (r < 0) - return r; - - if (authorized) - return 1; - - if (_challenge) { - *_challenge = challenge; - return 0; - } - } -#endif - - return -EACCES; -} - -#ifdef ENABLE_POLKIT - -typedef struct AsyncPolkitQuery { - sd_bus_message *request, *reply; - sd_bus_message_handler_t callback; - void *userdata; - sd_bus_slot *slot; - Hashmap *registry; -} AsyncPolkitQuery; - -static void async_polkit_query_free(AsyncPolkitQuery *q) { - - if (!q) - return; - - sd_bus_slot_unref(q->slot); - - if (q->registry && q->request) - hashmap_remove(q->registry, q->request); - - sd_bus_message_unref(q->request); - sd_bus_message_unref(q->reply); - - free(q); -} - -static int async_polkit_callback(sd_bus_message *reply, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_error_free) sd_bus_error error_buffer = SD_BUS_ERROR_NULL; - AsyncPolkitQuery *q = userdata; - int r; - - assert(reply); - assert(q); - - q->slot = sd_bus_slot_unref(q->slot); - q->reply = sd_bus_message_ref(reply); - - r = sd_bus_message_rewind(q->request, true); - if (r < 0) { - r = sd_bus_reply_method_errno(q->request, r, NULL); - goto finish; - } - - r = q->callback(q->request, q->userdata, &error_buffer); - r = bus_maybe_reply_error(q->request, r, &error_buffer); - -finish: - async_polkit_query_free(q); - - return r; -} - -#endif - -int bus_verify_polkit_async( - sd_bus_message *call, - int capability, - const char *action, - const char **details, - bool interactive, - uid_t good_user, - Hashmap **registry, - sd_bus_error *error) { - -#ifdef ENABLE_POLKIT - _cleanup_(sd_bus_message_unrefp) sd_bus_message *pk = NULL; - AsyncPolkitQuery *q; - const char *sender, **k, **v; - sd_bus_message_handler_t callback; - void *userdata; - int c; -#endif - int r; - - assert(call); - assert(action); - assert(registry); - - r = check_good_user(call, good_user); - if (r != 0) - return r; - -#ifdef ENABLE_POLKIT - q = hashmap_get(*registry, call); - if (q) { - int authorized, challenge; - - /* This is the second invocation of this function, and - * there's already a response from polkit, let's - * process it */ - assert(q->reply); - - if (sd_bus_message_is_method_error(q->reply, NULL)) { - const sd_bus_error *e; - - /* Copy error from polkit reply */ - e = sd_bus_message_get_error(q->reply); - sd_bus_error_copy(error, e); - - /* Treat no PK available as access denied */ - if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) - return -EACCES; - - return -sd_bus_error_get_errno(e); - } - - r = sd_bus_message_enter_container(q->reply, 'r', "bba{ss}"); - if (r >= 0) - r = sd_bus_message_read(q->reply, "bb", &authorized, &challenge); - - if (r < 0) - return r; - - if (authorized) - return 1; - - if (challenge) - return sd_bus_error_set(error, SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED, "Interactive authentication required."); - - return -EACCES; - } -#endif - - r = sd_bus_query_sender_privilege(call, capability); - if (r < 0) - return r; - else if (r > 0) - return 1; - -#ifdef ENABLE_POLKIT - if (sd_bus_get_current_message(call->bus) != call) - return -EINVAL; - - callback = sd_bus_get_current_handler(call->bus); - if (!callback) - return -EINVAL; - - userdata = sd_bus_get_current_userdata(call->bus); - - sender = sd_bus_message_get_sender(call); - if (!sender) - return -EBADMSG; - - c = sd_bus_message_get_allow_interactive_authorization(call); - if (c < 0) - return c; - if (c > 0) - interactive = true; - - r = hashmap_ensure_allocated(registry, NULL); - if (r < 0) - return r; - - r = sd_bus_message_new_method_call( - call->bus, - &pk, - "org.freedesktop.PolicyKit1", - "/org/freedesktop/PolicyKit1/Authority", - "org.freedesktop.PolicyKit1.Authority", - "CheckAuthorization"); - if (r < 0) - return r; - - r = sd_bus_message_append( - pk, - "(sa{sv})s", - "system-bus-name", 1, "name", "s", sender, - action); - if (r < 0) - return r; - - r = sd_bus_message_open_container(pk, 'a', "{ss}"); - if (r < 0) - return r; - - STRV_FOREACH_PAIR(k, v, details) { - r = sd_bus_message_append(pk, "{ss}", *k, *v); - if (r < 0) - return r; - } - - r = sd_bus_message_close_container(pk); - if (r < 0) - return r; - - r = sd_bus_message_append(pk, "us", !!interactive, NULL); - if (r < 0) - return r; - - q = new0(AsyncPolkitQuery, 1); - if (!q) - return -ENOMEM; - - q->request = sd_bus_message_ref(call); - q->callback = callback; - q->userdata = userdata; - - r = hashmap_put(*registry, call, q); - if (r < 0) { - async_polkit_query_free(q); - return r; - } - - q->registry = *registry; - - r = sd_bus_call_async(call->bus, &q->slot, pk, async_polkit_callback, q, 0); - if (r < 0) { - async_polkit_query_free(q); - return r; - } - - return 0; -#endif - - return -EACCES; -} - -void bus_verify_polkit_async_registry_free(Hashmap *registry) { -#ifdef ENABLE_POLKIT - AsyncPolkitQuery *q; - - while ((q = hashmap_steal_first(registry))) - async_polkit_query_free(q); - - hashmap_free(registry); -#endif -} - -int bus_check_peercred(sd_bus *c) { - struct ucred ucred; - socklen_t l; - int fd; - - assert(c); - - fd = sd_bus_get_fd(c); - if (fd < 0) - return fd; - - l = sizeof(struct ucred); - if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0) - return -errno; - - if (l != sizeof(struct ucred)) - return -E2BIG; - - if (ucred.uid != 0 && ucred.uid != geteuid()) - return -EPERM; - - return 1; -} - -int bus_connect_system_systemd(sd_bus **_bus) { - _cleanup_(sd_bus_unrefp) sd_bus *bus = NULL; - int r; - - assert(_bus); - - if (geteuid() != 0) - return sd_bus_default_system(_bus); - - /* If we are root and kdbus is not available, then let's talk - * directly to the system instance, instead of going via the - * bus */ - - r = sd_bus_new(&bus); - if (r < 0) - return r; - - r = sd_bus_set_address(bus, KERNEL_SYSTEM_BUS_ADDRESS); - if (r < 0) - return r; - - bus->bus_client = true; - - r = sd_bus_start(bus); - if (r >= 0) { - *_bus = bus; - bus = NULL; - return 0; - } - - bus = sd_bus_unref(bus); - - r = sd_bus_new(&bus); - if (r < 0) - return r; - - r = sd_bus_set_address(bus, "unix:path=/run/systemd/private"); - if (r < 0) - return r; - - r = sd_bus_start(bus); - if (r < 0) - return sd_bus_default_system(_bus); - - r = bus_check_peercred(bus); - if (r < 0) - return r; - - *_bus = bus; - bus = NULL; - - return 0; -} - -int bus_connect_user_systemd(sd_bus **_bus) { - _cleanup_(sd_bus_unrefp) sd_bus *bus = NULL; - _cleanup_free_ char *ee = NULL; - const char *e; - int r; - - /* Try via kdbus first, and then directly */ - - assert(_bus); - - r = sd_bus_new(&bus); - if (r < 0) - return r; - - if (asprintf(&bus->address, KERNEL_USER_BUS_ADDRESS_FMT, getuid()) < 0) - return -ENOMEM; - - bus->bus_client = true; - - r = sd_bus_start(bus); - if (r >= 0) { - *_bus = bus; - bus = NULL; - return 0; - } - - bus = sd_bus_unref(bus); - - e = secure_getenv("XDG_RUNTIME_DIR"); - if (!e) - return sd_bus_default_user(_bus); - - ee = bus_address_escape(e); - if (!ee) - return -ENOMEM; - - r = sd_bus_new(&bus); - if (r < 0) - return r; - - bus->address = strjoin("unix:path=", ee, "/systemd/private", NULL); - if (!bus->address) - return -ENOMEM; - - r = sd_bus_start(bus); - if (r < 0) - return sd_bus_default_user(_bus); - - r = bus_check_peercred(bus); - if (r < 0) - return r; - - *_bus = bus; - bus = NULL; - - return 0; -} - -#define print_property(name, fmt, ...) \ - do { \ - if (value) \ - printf(fmt "\n", __VA_ARGS__); \ - else \ - printf("%s=" fmt "\n", name, __VA_ARGS__); \ - } while(0) - -int bus_print_property(const char *name, sd_bus_message *property, bool value, bool all) { - char type; - const char *contents; - int r; - - assert(name); - assert(property); - - r = sd_bus_message_peek_type(property, &type, &contents); - if (r < 0) - return r; - - switch (type) { - - case SD_BUS_TYPE_STRING: { - const char *s; - - r = sd_bus_message_read_basic(property, type, &s); - if (r < 0) - return r; - - if (all || !isempty(s)) { - _cleanup_free_ char *escaped = NULL; - - escaped = xescape(s, "\n"); - if (!escaped) - return -ENOMEM; - - print_property(name, "%s", escaped); - } - - return 1; - } - - case SD_BUS_TYPE_BOOLEAN: { - int b; - - r = sd_bus_message_read_basic(property, type, &b); - if (r < 0) - return r; - - print_property(name, "%s", yes_no(b)); - - return 1; - } - - case SD_BUS_TYPE_UINT64: { - uint64_t u; - - r = sd_bus_message_read_basic(property, type, &u); - if (r < 0) - return r; - - /* Yes, heuristics! But we can change this check - * should it turn out to not be sufficient */ - - if (endswith(name, "Timestamp")) { - char timestamp[FORMAT_TIMESTAMP_MAX], *t; - - t = format_timestamp(timestamp, sizeof(timestamp), u); - if (t || all) - print_property(name, "%s", strempty(t)); - - } else if (strstr(name, "USec")) { - char timespan[FORMAT_TIMESPAN_MAX]; - - print_property(name, "%s", format_timespan(timespan, sizeof(timespan), u, 0)); - } else - print_property(name, "%"PRIu64, u); - - return 1; - } - - case SD_BUS_TYPE_INT64: { - int64_t i; - - r = sd_bus_message_read_basic(property, type, &i); - if (r < 0) - return r; - - print_property(name, "%"PRIi64, i); - - return 1; - } - - case SD_BUS_TYPE_UINT32: { - uint32_t u; - - r = sd_bus_message_read_basic(property, type, &u); - if (r < 0) - return r; - - if (strstr(name, "UMask") || strstr(name, "Mode")) - print_property(name, "%04o", u); - else - print_property(name, "%"PRIu32, u); - - return 1; - } - - case SD_BUS_TYPE_INT32: { - int32_t i; - - r = sd_bus_message_read_basic(property, type, &i); - if (r < 0) - return r; - - print_property(name, "%"PRIi32, i); - return 1; - } - - case SD_BUS_TYPE_DOUBLE: { - double d; - - r = sd_bus_message_read_basic(property, type, &d); - if (r < 0) - return r; - - print_property(name, "%g", d); - return 1; - } - - case SD_BUS_TYPE_ARRAY: - if (streq(contents, "s")) { - bool first = true; - const char *str; - - r = sd_bus_message_enter_container(property, SD_BUS_TYPE_ARRAY, contents); - if (r < 0) - return r; - - while ((r = sd_bus_message_read_basic(property, SD_BUS_TYPE_STRING, &str)) > 0) { - _cleanup_free_ char *escaped = NULL; - - if (first && !value) - printf("%s=", name); - - escaped = xescape(str, "\n "); - if (!escaped) - return -ENOMEM; - - printf("%s%s", first ? "" : " ", escaped); - - first = false; - } - if (r < 0) - return r; - - if (first && all && !value) - printf("%s=", name); - if (!first || all) - puts(""); - - r = sd_bus_message_exit_container(property); - if (r < 0) - return r; - - return 1; - - } else if (streq(contents, "y")) { - const uint8_t *u; - size_t n; - - r = sd_bus_message_read_array(property, SD_BUS_TYPE_BYTE, (const void**) &u, &n); - if (r < 0) - return r; - - if (all || n > 0) { - unsigned int i; - - if (!value) - printf("%s=", name); - - for (i = 0; i < n; i++) - printf("%02x", u[i]); - - puts(""); - } - - return 1; - - } else if (streq(contents, "u")) { - uint32_t *u; - size_t n; - - r = sd_bus_message_read_array(property, SD_BUS_TYPE_UINT32, (const void**) &u, &n); - if (r < 0) - return r; - - if (all || n > 0) { - unsigned int i; - - if (!value) - printf("%s=", name); - - for (i = 0; i < n; i++) - printf("%08x", u[i]); - - puts(""); - } - - return 1; - } - - break; - } - - return 0; -} - -int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool value, bool all) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - int r; - - assert(bus); - assert(path); - - r = sd_bus_call_method(bus, - dest, - path, - "org.freedesktop.DBus.Properties", - "GetAll", - &error, - &reply, - "s", ""); - if (r < 0) - return r; - - r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}"); - if (r < 0) - return r; - - while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { - const char *name; - const char *contents; - - r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &name); - if (r < 0) - return r; - - if (!filter || strv_find(filter, name)) { - r = sd_bus_message_peek_type(reply, NULL, &contents); - if (r < 0) - return r; - - r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents); - if (r < 0) - return r; - - r = bus_print_property(name, reply, value, all); - if (r < 0) - return r; - if (r == 0) { - if (all) - printf("%s=[unprintable]\n", name); - /* skip what we didn't read */ - r = sd_bus_message_skip(reply, contents); - if (r < 0) - return r; - } - - r = sd_bus_message_exit_container(reply); - if (r < 0) - return r; - } else { - r = sd_bus_message_skip(reply, "v"); - if (r < 0) - return r; - } - - r = sd_bus_message_exit_container(reply); - if (r < 0) - return r; - } - if (r < 0) - return r; - - r = sd_bus_message_exit_container(reply); - if (r < 0) - return r; - - return 0; -} - -int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { - sd_id128_t *p = userdata; - const void *v; - size_t n; - int r; - - r = sd_bus_message_read_array(m, SD_BUS_TYPE_BYTE, &v, &n); - if (r < 0) - return r; - - if (n == 0) - *p = SD_ID128_NULL; - else if (n == 16) - memcpy((*p).bytes, v, n); - else - return -EINVAL; - - return 0; -} - -static int map_basic(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { - char type; - int r; - - r = sd_bus_message_peek_type(m, &type, NULL); - if (r < 0) - return r; - - switch (type) { - - case SD_BUS_TYPE_STRING: { - char **p = userdata; - const char *s; - - r = sd_bus_message_read_basic(m, type, &s); - if (r < 0) - return r; - - if (isempty(s)) - s = NULL; - - return free_and_strdup(p, s); - } - - case SD_BUS_TYPE_ARRAY: { - _cleanup_strv_free_ char **l = NULL; - char ***p = userdata; - - r = bus_message_read_strv_extend(m, &l); - if (r < 0) - return r; - - strv_free(*p); - *p = l; - l = NULL; - return 0; - } - - case SD_BUS_TYPE_BOOLEAN: { - unsigned b; - int *p = userdata; - - r = sd_bus_message_read_basic(m, type, &b); - if (r < 0) - return r; - - *p = b; - return 0; - } - - case SD_BUS_TYPE_INT32: - case SD_BUS_TYPE_UINT32: { - uint32_t u, *p = userdata; - - r = sd_bus_message_read_basic(m, type, &u); - if (r < 0) - return r; - - *p = u; - return 0; - } - - case SD_BUS_TYPE_INT64: - case SD_BUS_TYPE_UINT64: { - uint64_t t, *p = userdata; - - r = sd_bus_message_read_basic(m, type, &t); - if (r < 0) - return r; - - *p = t; - return 0; - } - - case SD_BUS_TYPE_DOUBLE: { - double d, *p = userdata; - - r = sd_bus_message_read_basic(m, type, &d); - if (r < 0) - return r; - - *p = d; - return 0; - }} - - return -EOPNOTSUPP; -} - -int bus_message_map_all_properties( - sd_bus_message *m, - const struct bus_properties_map *map, - void *userdata) { - - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - int r; - - assert(m); - assert(map); - - r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}"); - if (r < 0) - return r; - - while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { - const struct bus_properties_map *prop; - const char *member; - const char *contents; - void *v; - unsigned i; - - r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &member); - if (r < 0) - return r; - - for (i = 0, prop = NULL; map[i].member; i++) - if (streq(map[i].member, member)) { - prop = &map[i]; - break; - } - - if (prop) { - r = sd_bus_message_peek_type(m, NULL, &contents); - if (r < 0) - return r; - - r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, contents); - if (r < 0) - return r; - - v = (uint8_t *)userdata + prop->offset; - if (map[i].set) - r = prop->set(sd_bus_message_get_bus(m), member, m, &error, v); - else - r = map_basic(sd_bus_message_get_bus(m), member, m, &error, v); - if (r < 0) - return r; - - r = sd_bus_message_exit_container(m); - if (r < 0) - return r; - } else { - r = sd_bus_message_skip(m, "v"); - if (r < 0) - return r; - } - - r = sd_bus_message_exit_container(m); - if (r < 0) - return r; - } - if (r < 0) - return r; - - return sd_bus_message_exit_container(m); -} - -int bus_message_map_properties_changed( - sd_bus_message *m, - const struct bus_properties_map *map, - void *userdata) { - - const char *member; - int r, invalidated, i; - - assert(m); - assert(map); - - r = bus_message_map_all_properties(m, map, userdata); - if (r < 0) - return r; - - r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "s"); - if (r < 0) - return r; - - invalidated = 0; - while ((r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &member)) > 0) - for (i = 0; map[i].member; i++) - if (streq(map[i].member, member)) { - ++invalidated; - break; - } - if (r < 0) - return r; - - r = sd_bus_message_exit_container(m); - if (r < 0) - return r; - - return invalidated; -} - -int bus_map_all_properties( - sd_bus *bus, - const char *destination, - const char *path, - const struct bus_properties_map *map, - void *userdata) { - - _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - int r; - - assert(bus); - assert(destination); - assert(path); - assert(map); - - r = sd_bus_call_method( - bus, - destination, - path, - "org.freedesktop.DBus.Properties", - "GetAll", - &error, - &m, - "s", ""); - if (r < 0) - return r; - - return bus_message_map_all_properties(m, map, userdata); -} - -int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **ret) { - _cleanup_(sd_bus_unrefp) sd_bus *bus = NULL; - int r; - - assert(transport >= 0); - assert(transport < _BUS_TRANSPORT_MAX); - assert(ret); - - assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); - assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); - - switch (transport) { - - case BUS_TRANSPORT_LOCAL: - if (user) - r = sd_bus_default_user(&bus); - else - r = sd_bus_default_system(&bus); - - break; - - case BUS_TRANSPORT_REMOTE: - r = sd_bus_open_system_remote(&bus, host); - break; - - case BUS_TRANSPORT_MACHINE: - r = sd_bus_open_system_machine(&bus, host); - break; - - default: - assert_not_reached("Hmm, unknown transport type."); - } - if (r < 0) - return r; - - r = sd_bus_set_exit_on_disconnect(bus, true); - if (r < 0) - return r; - - *ret = bus; - bus = NULL; - - return 0; -} - -int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus) { - int r; - - assert(transport >= 0); - assert(transport < _BUS_TRANSPORT_MAX); - assert(bus); - - assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); - assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); - - switch (transport) { - - case BUS_TRANSPORT_LOCAL: - if (user) - r = bus_connect_user_systemd(bus); - else - r = bus_connect_system_systemd(bus); - - break; - - case BUS_TRANSPORT_REMOTE: - r = sd_bus_open_system_remote(bus, host); - break; - - case BUS_TRANSPORT_MACHINE: - r = sd_bus_open_system_machine(bus, host); - break; - - default: - assert_not_reached("Hmm, unknown transport type."); - } - - return r; -} - -int bus_property_get_bool( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - int b = *(bool*) userdata; - - return sd_bus_message_append_basic(reply, 'b', &b); -} - -int bus_property_get_id128( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - sd_id128_t *id = userdata; - - if (sd_id128_is_null(*id)) /* Add an empty array if the ID is zero */ - return sd_bus_message_append(reply, "ay", 0); - else - return sd_bus_message_append_array(reply, 'y', id->bytes, 16); -} - -#if __SIZEOF_SIZE_T__ != 8 -int bus_property_get_size( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - uint64_t sz = *(size_t*) userdata; - - return sd_bus_message_append_basic(reply, 't', &sz); -} -#endif - -#if __SIZEOF_LONG__ != 8 -int bus_property_get_long( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - int64_t l = *(long*) userdata; - - return sd_bus_message_append_basic(reply, 'x', &l); -} - -int bus_property_get_ulong( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - uint64_t ul = *(unsigned long*) userdata; - - return sd_bus_message_append_basic(reply, 't', &ul); -} -#endif - -int bus_log_parse_error(int r) { - return log_error_errno(r, "Failed to parse bus message: %m"); -} - -int bus_log_create_error(int r) { - return log_error_errno(r, "Failed to create bus message: %m"); -} - -/** - * bus_path_encode_unique() - encode unique object path - * @b: bus connection or NULL - * @prefix: object path prefix - * @sender_id: unique-name of client, or NULL - * @external_id: external ID to be chosen by client, or NULL - * @ret_path: storage for encoded object path pointer - * - * Whenever we provide a bus API that allows clients to create and manage - * server-side objects, we need to provide a unique name for these objects. If - * we let the server choose the name, we suffer from a race condition: If a - * client creates an object asynchronously, it cannot destroy that object until - * it received the method reply. It cannot know the name of the new object, - * thus, it cannot destroy it. Furthermore, it enforces a round-trip. - * - * Therefore, many APIs allow the client to choose the unique name for newly - * created objects. There're two problems to solve, though: - * 1) Object names are usually defined via dbus object paths, which are - * usually globally namespaced. Therefore, multiple clients must be able - * to choose unique object names without interference. - * 2) If multiple libraries share the same bus connection, they must be - * able to choose unique object names without interference. - * The first problem is solved easily by prefixing a name with the - * unique-bus-name of a connection. The server side must enforce this and - * reject any other name. The second problem is solved by providing unique - * suffixes from within sd-bus. - * - * This helper allows clients to create unique object-paths. It uses the - * template '/prefix/sender_id/external_id' and returns the new path in - * @ret_path (must be freed by the caller). - * If @sender_id is NULL, the unique-name of @b is used. If @external_id is - * NULL, this function allocates a unique suffix via @b (by requesting a new - * cookie). If both @sender_id and @external_id are given, @b can be passed as - * NULL. - * - * Returns: 0 on success, negative error code on failure. - */ -int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path) { - _cleanup_free_ char *sender_label = NULL, *external_label = NULL; - char external_buf[DECIMAL_STR_MAX(uint64_t)], *p; - int r; - - assert_return(b || (sender_id && external_id), -EINVAL); - assert_return(object_path_is_valid(prefix), -EINVAL); - assert_return(ret_path, -EINVAL); - - if (!sender_id) { - r = sd_bus_get_unique_name(b, &sender_id); - if (r < 0) - return r; - } - - if (!external_id) { - xsprintf(external_buf, "%"PRIu64, ++b->cookie); - external_id = external_buf; - } - - sender_label = bus_label_escape(sender_id); - if (!sender_label) - return -ENOMEM; - - external_label = bus_label_escape(external_id); - if (!external_label) - return -ENOMEM; - - p = strjoin(prefix, "/", sender_label, "/", external_label, NULL); - if (!p) - return -ENOMEM; - - *ret_path = p; - return 0; -} - -/** - * bus_path_decode_unique() - decode unique object path - * @path: object path to decode - * @prefix: object path prefix - * @ret_sender: output parameter for sender-id label - * @ret_external: output parameter for external-id label - * - * This does the reverse of bus_path_encode_unique() (see its description for - * details). Both trailing labels, sender-id and external-id, are unescaped and - * returned in the given output parameters (the caller must free them). - * - * Note that this function returns 0 if the path does not match the template - * (see bus_path_encode_unique()), 1 if it matched. - * - * Returns: Negative error code on failure, 0 if the given object path does not - * match the template (return parameters are set to NULL), 1 if it was - * parsed successfully (return parameters contain allocated labels). - */ -int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external) { - const char *p, *q; - char *sender, *external; - - assert(object_path_is_valid(path)); - assert(object_path_is_valid(prefix)); - assert(ret_sender); - assert(ret_external); - - p = object_path_startswith(path, prefix); - if (!p) { - *ret_sender = NULL; - *ret_external = NULL; - return 0; - } - - q = strchr(p, '/'); - if (!q) { - *ret_sender = NULL; - *ret_external = NULL; - return 0; - } - - sender = bus_label_unescape_n(p, q - p); - external = bus_label_unescape(q + 1); - if (!sender || !external) { - free(sender); - free(external); - return -ENOMEM; - } - - *ret_sender = sender; - *ret_external = external; - return 1; -} - -int bus_property_get_rlimit( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - struct rlimit *rl; - uint64_t u; - rlim_t x; - const char *is_soft; - - assert(bus); - assert(reply); - assert(userdata); - - is_soft = endswith(property, "Soft"); - rl = *(struct rlimit**) userdata; - if (rl) - x = is_soft ? rl->rlim_cur : rl->rlim_max; - else { - struct rlimit buf = {}; - int z; - const char *s; - - s = is_soft ? strndupa(property, is_soft - property) : property; - - z = rlimit_from_string(strstr(s, "Limit")); - assert(z >= 0); - - getrlimit(z, &buf); - x = is_soft ? buf.rlim_cur : buf.rlim_max; - } - - /* rlim_t might have different sizes, let's map - * RLIMIT_INFINITY to (uint64_t) -1, so that it is the same on - * all archs */ - u = x == RLIM_INFINITY ? (uint64_t) -1 : (uint64_t) x; - - return sd_bus_message_append(reply, "t", u); -} diff --git a/src/shared/bus-util.h b/src/shared/bus-util.h deleted file mode 100644 index 934e0b5b77..0000000000 --- a/src/shared/bus-util.h +++ /dev/null @@ -1,161 +0,0 @@ -#pragma once - -/*** - 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 <stdbool.h> -#include <stddef.h> -#include <stdint.h> -#include <sys/types.h> - -#include "sd-bus.h" -#include "sd-event.h" - -#include "hashmap.h" -#include "macro.h" -#include "string-util.h" - -typedef enum BusTransport { - BUS_TRANSPORT_LOCAL, - BUS_TRANSPORT_REMOTE, - BUS_TRANSPORT_MACHINE, - _BUS_TRANSPORT_MAX, - _BUS_TRANSPORT_INVALID = -1 -} BusTransport; - -typedef int (*bus_property_set_t) (sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata); - -struct bus_properties_map { - const char *member; - const char *signature; - bus_property_set_t set; - size_t offset; -}; - -int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata); - -int bus_message_map_all_properties(sd_bus_message *m, const struct bus_properties_map *map, void *userdata); -int bus_message_map_properties_changed(sd_bus_message *m, const struct bus_properties_map *map, void *userdata); -int bus_map_all_properties(sd_bus *bus, const char *destination, const char *path, const struct bus_properties_map *map, void *userdata); - -int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name); - -typedef bool (*check_idle_t)(void *userdata); - -int bus_event_loop_with_idle(sd_event *e, sd_bus *bus, const char *name, usec_t timeout, check_idle_t check_idle, void *userdata); - -int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error); - -int bus_check_peercred(sd_bus *c); - -int bus_test_polkit(sd_bus_message *call, int capability, const char *action, const char **details, uid_t good_user, bool *_challenge, sd_bus_error *e); - -int bus_verify_polkit_async(sd_bus_message *call, int capability, const char *action, const char **details, bool interactive, uid_t good_user, Hashmap **registry, sd_bus_error *error); -void bus_verify_polkit_async_registry_free(Hashmap *registry); - -int bus_connect_system_systemd(sd_bus **_bus); -int bus_connect_user_systemd(sd_bus **_bus); - -int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **bus); -int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus); - -int bus_print_property(const char *name, sd_bus_message *property, bool value, bool all); -int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool value, bool all); - -int bus_property_get_bool(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); -int bus_property_get_id128(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); - -#define bus_property_get_usec ((sd_bus_property_get_t) NULL) -#define bus_property_set_usec ((sd_bus_property_set_t) NULL) - -assert_cc(sizeof(int) == sizeof(int32_t)); -#define bus_property_get_int ((sd_bus_property_get_t) NULL) - -assert_cc(sizeof(unsigned) == sizeof(unsigned)); -#define bus_property_get_unsigned ((sd_bus_property_get_t) NULL) - -/* On 64bit machines we can use the default serializer for size_t and - * friends, otherwise we need to cast this manually */ -#if __SIZEOF_SIZE_T__ == 8 -#define bus_property_get_size ((sd_bus_property_get_t) NULL) -#else -int bus_property_get_size(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); -#endif - -#if __SIZEOF_LONG__ == 8 -#define bus_property_get_long ((sd_bus_property_get_t) NULL) -#define bus_property_get_ulong ((sd_bus_property_get_t) NULL) -#else -int bus_property_get_long(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); -int bus_property_get_ulong(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); -#endif - -/* uid_t and friends on Linux 32 bit. This means we can just use the - * default serializer for 32bit unsigned, for serializing it, and map - * it to NULL here */ -assert_cc(sizeof(uid_t) == sizeof(uint32_t)); -#define bus_property_get_uid ((sd_bus_property_get_t) NULL) - -assert_cc(sizeof(gid_t) == sizeof(uint32_t)); -#define bus_property_get_gid ((sd_bus_property_get_t) NULL) - -assert_cc(sizeof(pid_t) == sizeof(uint32_t)); -#define bus_property_get_pid ((sd_bus_property_get_t) NULL) - -assert_cc(sizeof(mode_t) == sizeof(uint32_t)); -#define bus_property_get_mode ((sd_bus_property_get_t) NULL) - -int bus_log_parse_error(int r); -int bus_log_create_error(int r); - -#define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type) \ - int function(sd_bus *bus, \ - const char *path, \ - const char *interface, \ - const char *property, \ - sd_bus_message *reply, \ - void *userdata, \ - sd_bus_error *error) { \ - \ - const char *value; \ - type *field = userdata; \ - int r; \ - \ - assert(bus); \ - assert(reply); \ - assert(field); \ - \ - value = strempty(name##_to_string(*field)); \ - \ - r = sd_bus_message_append_basic(reply, 's', value); \ - if (r < 0) \ - return r; \ - \ - return 1; \ - } \ - struct __useless_struct_to_allow_trailing_semicolon__ - -#define BUS_PROPERTY_DUAL_TIMESTAMP(name, offset, flags) \ - SD_BUS_PROPERTY(name, "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, realtime), (flags)), \ - SD_BUS_PROPERTY(name "Monotonic", "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, monotonic), (flags)) - -int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path); -int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external); - -int bus_property_get_rlimit(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); diff --git a/src/shared/cgroup-show.c b/src/shared/cgroup-show.c deleted file mode 100644 index 3e451db715..0000000000 --- a/src/shared/cgroup-show.c +++ /dev/null @@ -1,312 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <dirent.h> -#include <errno.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "alloc-util.h" -#include "cgroup-show.h" -#include "cgroup-util.h" -#include "fd-util.h" -#include "formats-util.h" -#include "locale-util.h" -#include "macro.h" -#include "output-mode.h" -#include "path-util.h" -#include "process-util.h" -#include "string-util.h" -#include "terminal-util.h" - -static void show_pid_array( - pid_t pids[], - unsigned n_pids, - const char *prefix, - unsigned n_columns, - bool extra, - bool more, - OutputFlags flags) { - - unsigned i, j, pid_width; - - if (n_pids == 0) - return; - - qsort(pids, n_pids, sizeof(pid_t), pid_compare_func); - - /* Filter duplicates */ - for (j = 0, i = 1; i < n_pids; i++) { - if (pids[i] == pids[j]) - continue; - pids[++j] = pids[i]; - } - n_pids = j + 1; - pid_width = DECIMAL_STR_WIDTH(pids[j]); - - if (flags & OUTPUT_FULL_WIDTH) - n_columns = 0; - else { - if (n_columns > pid_width+2) - n_columns -= pid_width+2; - else - n_columns = 20; - } - for (i = 0; i < n_pids; i++) { - _cleanup_free_ char *t = NULL; - - get_process_cmdline(pids[i], n_columns, true, &t); - - if (extra) - printf("%s%s ", prefix, special_glyph(TRIANGULAR_BULLET)); - else - printf("%s%s", prefix, special_glyph(((more || i < n_pids-1) ? TREE_BRANCH : TREE_RIGHT))); - - printf("%*"PID_PRI" %s\n", pid_width, pids[i], strna(t)); - } -} - -static int show_cgroup_one_by_path( - const char *path, - const char *prefix, - unsigned n_columns, - bool more, - OutputFlags flags) { - - char *fn; - _cleanup_fclose_ FILE *f = NULL; - size_t n = 0, n_allocated = 0; - _cleanup_free_ pid_t *pids = NULL; - _cleanup_free_ char *p = NULL; - pid_t pid; - int r; - - r = cg_mangle_path(path, &p); - if (r < 0) - return r; - - fn = strjoina(p, "/cgroup.procs"); - f = fopen(fn, "re"); - if (!f) - return -errno; - - while ((r = cg_read_pid(f, &pid)) > 0) { - - if (!(flags & OUTPUT_KERNEL_THREADS) && is_kernel_thread(pid) > 0) - continue; - - if (!GREEDY_REALLOC(pids, n_allocated, n + 1)) - return -ENOMEM; - - assert(n < n_allocated); - pids[n++] = pid; - } - - if (r < 0) - return r; - - show_pid_array(pids, n, prefix, n_columns, false, more, flags); - - return 0; -} - -int show_cgroup_by_path( - const char *path, - const char *prefix, - unsigned n_columns, - OutputFlags flags) { - - _cleanup_free_ char *fn = NULL, *p1 = NULL, *last = NULL, *p2 = NULL; - _cleanup_closedir_ DIR *d = NULL; - char *gn = NULL; - bool shown_pids = false; - int r; - - assert(path); - - if (n_columns <= 0) - n_columns = columns(); - - prefix = strempty(prefix); - - r = cg_mangle_path(path, &fn); - if (r < 0) - return r; - - d = opendir(fn); - if (!d) - return -errno; - - while ((r = cg_read_subgroup(d, &gn)) > 0) { - _cleanup_free_ char *k = NULL; - - k = strjoin(fn, "/", gn, NULL); - free(gn); - if (!k) - return -ENOMEM; - - if (!(flags & OUTPUT_SHOW_ALL) && cg_is_empty_recursive(NULL, k) > 0) - continue; - - if (!shown_pids) { - show_cgroup_one_by_path(path, prefix, n_columns, true, flags); - shown_pids = true; - } - - if (last) { - printf("%s%s%s\n", prefix, special_glyph(TREE_BRANCH), cg_unescape(basename(last))); - - if (!p1) { - p1 = strappend(prefix, special_glyph(TREE_VERTICAL)); - if (!p1) - return -ENOMEM; - } - - show_cgroup_by_path(last, p1, n_columns-2, flags); - free(last); - } - - last = k; - k = NULL; - } - - if (r < 0) - return r; - - if (!shown_pids) - show_cgroup_one_by_path(path, prefix, n_columns, !!last, flags); - - if (last) { - printf("%s%s%s\n", prefix, special_glyph(TREE_RIGHT), cg_unescape(basename(last))); - - if (!p2) { - p2 = strappend(prefix, " "); - if (!p2) - return -ENOMEM; - } - - show_cgroup_by_path(last, p2, n_columns-2, flags); - } - - return 0; -} - -int show_cgroup(const char *controller, - const char *path, - const char *prefix, - unsigned n_columns, - OutputFlags flags) { - _cleanup_free_ char *p = NULL; - int r; - - assert(path); - - r = cg_get_path(controller, path, NULL, &p); - if (r < 0) - return r; - - return show_cgroup_by_path(p, prefix, n_columns, flags); -} - -static int show_extra_pids( - const char *controller, - const char *path, - const char *prefix, - unsigned n_columns, - const pid_t pids[], - unsigned n_pids, - OutputFlags flags) { - - _cleanup_free_ pid_t *copy = NULL; - unsigned i, j; - int r; - - assert(path); - - if (n_pids <= 0) - return 0; - - if (n_columns <= 0) - n_columns = columns(); - - prefix = strempty(prefix); - - copy = new(pid_t, n_pids); - if (!copy) - return -ENOMEM; - - for (i = 0, j = 0; i < n_pids; i++) { - _cleanup_free_ char *k = NULL; - - r = cg_pid_get_path(controller, pids[i], &k); - if (r < 0) - return r; - - if (path_startswith(k, path)) - continue; - - copy[j++] = pids[i]; - } - - show_pid_array(copy, j, prefix, n_columns, true, false, flags); - - return 0; -} - -int show_cgroup_and_extra( - const char *controller, - const char *path, - const char *prefix, - unsigned n_columns, - const pid_t extra_pids[], - unsigned n_extra_pids, - OutputFlags flags) { - - int r; - - assert(path); - - r = show_cgroup(controller, path, prefix, n_columns, flags); - if (r < 0) - return r; - - return show_extra_pids(controller, path, prefix, n_columns, extra_pids, n_extra_pids, flags); -} - -int show_cgroup_and_extra_by_spec( - const char *spec, - const char *prefix, - unsigned n_columns, - const pid_t extra_pids[], - unsigned n_extra_pids, - OutputFlags flags) { - - _cleanup_free_ char *controller = NULL, *path = NULL; - int r; - - assert(spec); - - r = cg_split_spec(spec, &controller, &path); - if (r < 0) - return r; - - return show_cgroup_and_extra(controller, path, prefix, n_columns, extra_pids, n_extra_pids, flags); -} diff --git a/src/shared/cgroup-show.h b/src/shared/cgroup-show.h deleted file mode 100644 index 5c1d6e6d98..0000000000 --- a/src/shared/cgroup-show.h +++ /dev/null @@ -1,32 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 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 "logs-show.h" -#include "output-mode.h" - -int show_cgroup_by_path(const char *path, const char *prefix, unsigned columns, OutputFlags flags); -int show_cgroup(const char *controller, const char *path, const char *prefix, unsigned columns, OutputFlags flags); - -int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned n_columns, const pid_t extra_pids[], unsigned n_extra_pids, OutputFlags flags); -int show_cgroup_and_extra(const char *controller, const char *path, const char *prefix, unsigned n_columns, const pid_t extra_pids[], unsigned n_extra_pids, OutputFlags flags); diff --git a/src/shared/clean-ipc.c b/src/shared/clean-ipc.c deleted file mode 100644 index d5db604f03..0000000000 --- a/src/shared/clean-ipc.c +++ /dev/null @@ -1,389 +0,0 @@ -/*** - 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 <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <limits.h> -#include <mqueue.h> -#include <stdbool.h> -#include <stdio.h> -#include <string.h> -#include <sys/ipc.h> -#include <sys/msg.h> -#include <sys/sem.h> -#include <sys/shm.h> -#include <sys/stat.h> -#include <unistd.h> - -#include "clean-ipc.h" -#include "dirent-util.h" -#include "fd-util.h" -#include "fileio.h" -#include "formats-util.h" -#include "log.h" -#include "macro.h" -#include "string-util.h" -#include "strv.h" -#include "user-util.h" - -static bool match_uid_gid(uid_t subject_uid, gid_t subject_gid, uid_t delete_uid, gid_t delete_gid) { - - if (uid_is_valid(delete_uid) && subject_uid == delete_uid) - return true; - - if (gid_is_valid(delete_gid) && subject_gid == delete_gid) - return true; - - return false; -} - -static int clean_sysvipc_shm(uid_t delete_uid, gid_t delete_gid) { - _cleanup_fclose_ FILE *f = NULL; - char line[LINE_MAX]; - bool first = true; - int ret = 0; - - f = fopen("/proc/sysvipc/shm", "re"); - if (!f) { - if (errno == ENOENT) - return 0; - - return log_warning_errno(errno, "Failed to open /proc/sysvipc/shm: %m"); - } - - FOREACH_LINE(line, f, goto fail) { - unsigned n_attached; - pid_t cpid, lpid; - uid_t uid, cuid; - gid_t gid, cgid; - int shmid; - - if (first) { - first = false; - continue; - } - - truncate_nl(line); - - if (sscanf(line, "%*i %i %*o %*u " PID_FMT " " PID_FMT " %u " UID_FMT " " GID_FMT " " UID_FMT " " GID_FMT, - &shmid, &cpid, &lpid, &n_attached, &uid, &gid, &cuid, &cgid) != 8) - continue; - - if (n_attached > 0) - continue; - - if (!match_uid_gid(uid, gid, delete_uid, delete_gid)) - continue; - - if (shmctl(shmid, IPC_RMID, NULL) < 0) { - - /* Ignore entries that are already deleted */ - if (errno == EIDRM || errno == EINVAL) - continue; - - ret = log_warning_errno(errno, - "Failed to remove SysV shared memory segment %i: %m", - shmid); - } else - log_debug("Removed SysV shared memory segment %i.", shmid); - } - - return ret; - -fail: - return log_warning_errno(errno, "Failed to read /proc/sysvipc/shm: %m"); -} - -static int clean_sysvipc_sem(uid_t delete_uid, gid_t delete_gid) { - _cleanup_fclose_ FILE *f = NULL; - char line[LINE_MAX]; - bool first = true; - int ret = 0; - - f = fopen("/proc/sysvipc/sem", "re"); - if (!f) { - if (errno == ENOENT) - return 0; - - return log_warning_errno(errno, "Failed to open /proc/sysvipc/sem: %m"); - } - - FOREACH_LINE(line, f, goto fail) { - uid_t uid, cuid; - gid_t gid, cgid; - int semid; - - if (first) { - first = false; - continue; - } - - truncate_nl(line); - - if (sscanf(line, "%*i %i %*o %*u " UID_FMT " " GID_FMT " " UID_FMT " " GID_FMT, - &semid, &uid, &gid, &cuid, &cgid) != 5) - continue; - - if (!match_uid_gid(uid, gid, delete_uid, delete_gid)) - continue; - - if (semctl(semid, 0, IPC_RMID) < 0) { - - /* Ignore entries that are already deleted */ - if (errno == EIDRM || errno == EINVAL) - continue; - - ret = log_warning_errno(errno, - "Failed to remove SysV semaphores object %i: %m", - semid); - } else - log_debug("Removed SysV semaphore %i.", semid); - } - - return ret; - -fail: - return log_warning_errno(errno, "Failed to read /proc/sysvipc/sem: %m"); -} - -static int clean_sysvipc_msg(uid_t delete_uid, gid_t delete_gid) { - _cleanup_fclose_ FILE *f = NULL; - char line[LINE_MAX]; - bool first = true; - int ret = 0; - - f = fopen("/proc/sysvipc/msg", "re"); - if (!f) { - if (errno == ENOENT) - return 0; - - return log_warning_errno(errno, "Failed to open /proc/sysvipc/msg: %m"); - } - - FOREACH_LINE(line, f, goto fail) { - uid_t uid, cuid; - gid_t gid, cgid; - pid_t cpid, lpid; - int msgid; - - if (first) { - first = false; - continue; - } - - truncate_nl(line); - - if (sscanf(line, "%*i %i %*o %*u %*u " PID_FMT " " PID_FMT " " UID_FMT " " GID_FMT " " UID_FMT " " GID_FMT, - &msgid, &cpid, &lpid, &uid, &gid, &cuid, &cgid) != 7) - continue; - - if (!match_uid_gid(uid, gid, delete_uid, delete_gid)) - continue; - - if (msgctl(msgid, IPC_RMID, NULL) < 0) { - - /* Ignore entries that are already deleted */ - if (errno == EIDRM || errno == EINVAL) - continue; - - ret = log_warning_errno(errno, - "Failed to remove SysV message queue %i: %m", - msgid); - } else - log_debug("Removed SysV message queue %i.", msgid); - } - - return ret; - -fail: - return log_warning_errno(errno, "Failed to read /proc/sysvipc/msg: %m"); -} - -static int clean_posix_shm_internal(DIR *dir, uid_t uid, gid_t gid) { - struct dirent *de; - int ret = 0, r; - - assert(dir); - - FOREACH_DIRENT_ALL(de, dir, goto fail) { - struct stat st; - - if (STR_IN_SET(de->d_name, "..", ".")) - continue; - - if (fstatat(dirfd(dir), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) { - if (errno == ENOENT) - continue; - - ret = log_warning_errno(errno, "Failed to stat() POSIX shared memory segment %s: %m", de->d_name); - continue; - } - - if (!match_uid_gid(st.st_uid, st.st_gid, uid, gid)) - continue; - - if (S_ISDIR(st.st_mode)) { - _cleanup_closedir_ DIR *kid; - - kid = xopendirat(dirfd(dir), de->d_name, O_NOFOLLOW|O_NOATIME); - if (!kid) { - if (errno != ENOENT) - ret = log_warning_errno(errno, "Failed to enter shared memory directory %s: %m", de->d_name); - } else { - r = clean_posix_shm_internal(kid, uid, gid); - if (r < 0) - ret = r; - } - - if (unlinkat(dirfd(dir), de->d_name, AT_REMOVEDIR) < 0) { - - if (errno == ENOENT) - continue; - - ret = log_warning_errno(errno, "Failed to remove POSIX shared memory directory %s: %m", de->d_name); - } else - log_debug("Removed POSIX shared memory directory %s", de->d_name); - } else { - - if (unlinkat(dirfd(dir), de->d_name, 0) < 0) { - - if (errno == ENOENT) - continue; - - ret = log_warning_errno(errno, "Failed to remove POSIX shared memory segment %s: %m", de->d_name); - } else - log_debug("Removed POSIX shared memory segment %s", de->d_name); - } - } - - return ret; - -fail: - return log_warning_errno(errno, "Failed to read /dev/shm: %m"); -} - -static int clean_posix_shm(uid_t uid, gid_t gid) { - _cleanup_closedir_ DIR *dir = NULL; - - dir = opendir("/dev/shm"); - if (!dir) { - if (errno == ENOENT) - return 0; - - return log_warning_errno(errno, "Failed to open /dev/shm: %m"); - } - - return clean_posix_shm_internal(dir, uid, gid); -} - -static int clean_posix_mq(uid_t uid, gid_t gid) { - _cleanup_closedir_ DIR *dir = NULL; - struct dirent *de; - int ret = 0; - - dir = opendir("/dev/mqueue"); - if (!dir) { - if (errno == ENOENT) - return 0; - - return log_warning_errno(errno, "Failed to open /dev/mqueue: %m"); - } - - FOREACH_DIRENT_ALL(de, dir, goto fail) { - struct stat st; - char fn[1+strlen(de->d_name)+1]; - - if (STR_IN_SET(de->d_name, "..", ".")) - continue; - - if (fstatat(dirfd(dir), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) { - if (errno == ENOENT) - continue; - - ret = log_warning_errno(errno, - "Failed to stat() MQ segment %s: %m", - de->d_name); - continue; - } - - if (!match_uid_gid(st.st_uid, st.st_gid, uid, gid)) - continue; - - fn[0] = '/'; - strcpy(fn+1, de->d_name); - - if (mq_unlink(fn) < 0) { - if (errno == ENOENT) - continue; - - ret = log_warning_errno(errno, - "Failed to unlink POSIX message queue %s: %m", - fn); - } else - log_debug("Removed POSIX message queue %s", fn); - } - - return ret; - -fail: - return log_warning_errno(errno, "Failed to read /dev/mqueue: %m"); -} - -int clean_ipc(uid_t uid, gid_t gid) { - int ret = 0, r; - - /* Anything to do? */ - if (!uid_is_valid(uid) && !gid_is_valid(gid)) - return 0; - - /* Refuse to clean IPC of the root user */ - if (uid == 0 && gid == 0) - return 0; - - r = clean_sysvipc_shm(uid, gid); - if (r < 0) - ret = r; - - r = clean_sysvipc_sem(uid, gid); - if (r < 0) - ret = r; - - r = clean_sysvipc_msg(uid, gid); - if (r < 0) - ret = r; - - r = clean_posix_shm(uid, gid); - if (r < 0) - ret = r; - - r = clean_posix_mq(uid, gid); - if (r < 0) - ret = r; - - return ret; -} - -int clean_ipc_by_uid(uid_t uid) { - return clean_ipc(uid, GID_INVALID); -} - -int clean_ipc_by_gid(gid_t gid) { - return clean_ipc(UID_INVALID, gid); -} diff --git a/src/shared/clean-ipc.h b/src/shared/clean-ipc.h deleted file mode 100644 index 6ca57f44fd..0000000000 --- a/src/shared/clean-ipc.h +++ /dev/null @@ -1,26 +0,0 @@ -#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 clean_ipc(uid_t uid, gid_t gid); -int clean_ipc_by_uid(uid_t uid); -int clean_ipc_by_gid(gid_t gid); diff --git a/src/shared/condition.c b/src/shared/condition.c deleted file mode 100644 index 8bd6a51a99..0000000000 --- a/src/shared/condition.c +++ /dev/null @@ -1,578 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <fnmatch.h> -#include <limits.h> -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <time.h> -#include <unistd.h> - -#include "sd-id128.h" - -#include "alloc-util.h" -#include "apparmor-util.h" -#include "architecture.h" -#include "audit-util.h" -#include "cap-list.h" -#include "condition.h" -#include "extract-word.h" -#include "fd-util.h" -#include "fileio.h" -#include "glob-util.h" -#include "hostname-util.h" -#include "ima-util.h" -#include "list.h" -#include "macro.h" -#include "mount-util.h" -#include "parse-util.h" -#include "path-util.h" -#include "proc-cmdline.h" -#include "selinux-util.h" -#include "smack-util.h" -#include "stat-util.h" -#include "string-table.h" -#include "string-util.h" -#include "util.h" -#include "virt.h" - -Condition* condition_new(ConditionType type, const char *parameter, bool trigger, bool negate) { - Condition *c; - int r; - - assert(type >= 0); - assert(type < _CONDITION_TYPE_MAX); - assert((!parameter) == (type == CONDITION_NULL)); - - c = new0(Condition, 1); - if (!c) - return NULL; - - c->type = type; - c->trigger = trigger; - c->negate = negate; - - r = free_and_strdup(&c->parameter, parameter); - if (r < 0) { - free(c); - return NULL; - } - - return c; -} - -void condition_free(Condition *c) { - assert(c); - - free(c->parameter); - free(c); -} - -Condition* condition_free_list(Condition *first) { - Condition *c, *n; - - LIST_FOREACH_SAFE(conditions, c, n, first) - condition_free(c); - - return NULL; -} - -static int condition_test_kernel_command_line(Condition *c) { - _cleanup_free_ char *line = NULL; - const char *p; - bool equal; - int r; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_KERNEL_COMMAND_LINE); - - r = proc_cmdline(&line); - if (r < 0) - return r; - - equal = !!strchr(c->parameter, '='); - p = line; - - for (;;) { - _cleanup_free_ char *word = NULL; - bool found; - - r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX); - if (r < 0) - return r; - if (r == 0) - break; - - if (equal) - found = streq(word, c->parameter); - else { - const char *f; - - f = startswith(word, c->parameter); - found = f && (*f == '=' || *f == 0); - } - - if (found) - return true; - } - - return false; -} - -static int condition_test_virtualization(Condition *c) { - int b, v; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_VIRTUALIZATION); - - if (streq(c->parameter, "private-users")) - return running_in_userns(); - - v = detect_virtualization(); - if (v < 0) - return v; - - /* First, compare with yes/no */ - b = parse_boolean(c->parameter); - if (b >= 0) - return b == !!v; - - /* Then, compare categorization */ - if (streq(c->parameter, "vm")) - return VIRTUALIZATION_IS_VM(v); - - if (streq(c->parameter, "container")) - return VIRTUALIZATION_IS_CONTAINER(v); - - /* Finally compare id */ - return v != VIRTUALIZATION_NONE && streq(c->parameter, virtualization_to_string(v)); -} - -static int condition_test_architecture(Condition *c) { - int a, b; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_ARCHITECTURE); - - a = uname_architecture(); - if (a < 0) - return a; - - if (streq(c->parameter, "native")) - b = native_architecture(); - else { - b = architecture_from_string(c->parameter); - if (b < 0) /* unknown architecture? Then it's definitely not ours */ - return false; - } - - return a == b; -} - -static int condition_test_host(Condition *c) { - _cleanup_free_ char *h = NULL; - sd_id128_t x, y; - int r; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_HOST); - - if (sd_id128_from_string(c->parameter, &x) >= 0) { - - r = sd_id128_get_machine(&y); - if (r < 0) - return r; - - return sd_id128_equal(x, y); - } - - h = gethostname_malloc(); - if (!h) - return -ENOMEM; - - return fnmatch(c->parameter, h, FNM_CASEFOLD) == 0; -} - -static int condition_test_ac_power(Condition *c) { - int r; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_AC_POWER); - - r = parse_boolean(c->parameter); - if (r < 0) - return r; - - return (on_ac_power() != 0) == !!r; -} - -static int condition_test_security(Condition *c) { - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_SECURITY); - - if (streq(c->parameter, "selinux")) - return mac_selinux_have(); - if (streq(c->parameter, "smack")) - return mac_smack_use(); - if (streq(c->parameter, "apparmor")) - return mac_apparmor_use(); - if (streq(c->parameter, "audit")) - return use_audit(); - if (streq(c->parameter, "ima")) - return use_ima(); - - return false; -} - -static int condition_test_capability(Condition *c) { - _cleanup_fclose_ FILE *f = NULL; - int value; - char line[LINE_MAX]; - unsigned long long capabilities = -1; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_CAPABILITY); - - /* If it's an invalid capability, we don't have it */ - value = capability_from_name(c->parameter); - if (value < 0) - return -EINVAL; - - /* If it's a valid capability we default to assume - * that we have it */ - - f = fopen("/proc/self/status", "re"); - if (!f) - return -errno; - - while (fgets(line, sizeof(line), f)) { - truncate_nl(line); - - if (startswith(line, "CapBnd:")) { - (void) sscanf(line+7, "%llx", &capabilities); - break; - } - } - - return !!(capabilities & (1ULL << value)); -} - -static int condition_test_needs_update(Condition *c) { - const char *p; - struct stat usr, other; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_NEEDS_UPDATE); - - /* If the file system is read-only we shouldn't suggest an update */ - if (path_is_read_only_fs(c->parameter) > 0) - return false; - - /* Any other failure means we should allow the condition to be true, - * so that we rather invoke too many update tools than too - * few. */ - - if (!path_is_absolute(c->parameter)) - return true; - - p = strjoina(c->parameter, "/.updated"); - if (lstat(p, &other) < 0) - return true; - - if (lstat("/usr/", &usr) < 0) - return true; - - /* - * First, compare seconds as they are always accurate... - */ - if (usr.st_mtim.tv_sec != other.st_mtim.tv_sec) - return usr.st_mtim.tv_sec > other.st_mtim.tv_sec; - - /* - * ...then compare nanoseconds. - * - * A false positive is only possible when /usr's nanoseconds > 0 - * (otherwise /usr cannot be strictly newer than the target file) - * AND the target file's nanoseconds == 0 - * (otherwise the filesystem supports nsec timestamps, see stat(2)). - */ - if (usr.st_mtim.tv_nsec > 0 && other.st_mtim.tv_nsec == 0) { - _cleanup_free_ char *timestamp_str = NULL; - uint64_t timestamp; - int r; - - r = parse_env_file(p, NULL, "TIMESTAMP_NSEC", ×tamp_str, NULL); - if (r < 0) { - log_error_errno(r, "Failed to parse timestamp file '%s', using mtime: %m", p); - return true; - } else if (r == 0) { - log_debug("No data in timestamp file '%s', using mtime", p); - return true; - } - - r = safe_atou64(timestamp_str, ×tamp); - if (r < 0) { - log_error_errno(r, "Failed to parse timestamp value '%s' in file '%s', using mtime: %m", timestamp_str, p); - return true; - } - - timespec_store(&other.st_mtim, timestamp); - } - - return usr.st_mtim.tv_nsec > other.st_mtim.tv_nsec; -} - -static int condition_test_first_boot(Condition *c) { - int r; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_FIRST_BOOT); - - r = parse_boolean(c->parameter); - if (r < 0) - return r; - - return (access("/run/systemd/first-boot", F_OK) >= 0) == !!r; -} - -static int condition_test_path_exists(Condition *c) { - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_PATH_EXISTS); - - return access(c->parameter, F_OK) >= 0; -} - -static int condition_test_path_exists_glob(Condition *c) { - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_PATH_EXISTS_GLOB); - - return glob_exists(c->parameter) > 0; -} - -static int condition_test_path_is_directory(Condition *c) { - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_PATH_IS_DIRECTORY); - - return is_dir(c->parameter, true) > 0; -} - -static int condition_test_path_is_symbolic_link(Condition *c) { - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_PATH_IS_SYMBOLIC_LINK); - - return is_symlink(c->parameter) > 0; -} - -static int condition_test_path_is_mount_point(Condition *c) { - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_PATH_IS_MOUNT_POINT); - - return path_is_mount_point(c->parameter, AT_SYMLINK_FOLLOW) > 0; -} - -static int condition_test_path_is_read_write(Condition *c) { - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_PATH_IS_READ_WRITE); - - return path_is_read_only_fs(c->parameter) <= 0; -} - -static int condition_test_directory_not_empty(Condition *c) { - int r; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_DIRECTORY_NOT_EMPTY); - - r = dir_is_empty(c->parameter); - return r <= 0 && r != -ENOENT; -} - -static int condition_test_file_not_empty(Condition *c) { - struct stat st; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_FILE_NOT_EMPTY); - - return (stat(c->parameter, &st) >= 0 && - S_ISREG(st.st_mode) && - st.st_size > 0); -} - -static int condition_test_file_is_executable(Condition *c) { - struct stat st; - - assert(c); - assert(c->parameter); - assert(c->type == CONDITION_FILE_IS_EXECUTABLE); - - return (stat(c->parameter, &st) >= 0 && - S_ISREG(st.st_mode) && - (st.st_mode & 0111)); -} - -static int condition_test_null(Condition *c) { - assert(c); - assert(c->type == CONDITION_NULL); - - /* Note that during parsing we already evaluate the string and - * store it in c->negate */ - return true; -} - -int condition_test(Condition *c) { - - static int (*const condition_tests[_CONDITION_TYPE_MAX])(Condition *c) = { - [CONDITION_PATH_EXISTS] = condition_test_path_exists, - [CONDITION_PATH_EXISTS_GLOB] = condition_test_path_exists_glob, - [CONDITION_PATH_IS_DIRECTORY] = condition_test_path_is_directory, - [CONDITION_PATH_IS_SYMBOLIC_LINK] = condition_test_path_is_symbolic_link, - [CONDITION_PATH_IS_MOUNT_POINT] = condition_test_path_is_mount_point, - [CONDITION_PATH_IS_READ_WRITE] = condition_test_path_is_read_write, - [CONDITION_DIRECTORY_NOT_EMPTY] = condition_test_directory_not_empty, - [CONDITION_FILE_NOT_EMPTY] = condition_test_file_not_empty, - [CONDITION_FILE_IS_EXECUTABLE] = condition_test_file_is_executable, - [CONDITION_KERNEL_COMMAND_LINE] = condition_test_kernel_command_line, - [CONDITION_VIRTUALIZATION] = condition_test_virtualization, - [CONDITION_SECURITY] = condition_test_security, - [CONDITION_CAPABILITY] = condition_test_capability, - [CONDITION_HOST] = condition_test_host, - [CONDITION_AC_POWER] = condition_test_ac_power, - [CONDITION_ARCHITECTURE] = condition_test_architecture, - [CONDITION_NEEDS_UPDATE] = condition_test_needs_update, - [CONDITION_FIRST_BOOT] = condition_test_first_boot, - [CONDITION_NULL] = condition_test_null, - }; - - int r, b; - - assert(c); - assert(c->type >= 0); - assert(c->type < _CONDITION_TYPE_MAX); - - r = condition_tests[c->type](c); - if (r < 0) { - c->result = CONDITION_ERROR; - return r; - } - - b = (r > 0) == !c->negate; - c->result = b ? CONDITION_SUCCEEDED : CONDITION_FAILED; - return b; -} - -void condition_dump(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t)) { - assert(c); - assert(f); - - if (!prefix) - prefix = ""; - - fprintf(f, - "%s\t%s: %s%s%s %s\n", - prefix, - to_string(c->type), - c->trigger ? "|" : "", - c->negate ? "!" : "", - c->parameter, - condition_result_to_string(c->result)); -} - -void condition_dump_list(Condition *first, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t)) { - Condition *c; - - LIST_FOREACH(conditions, c, first) - condition_dump(c, f, prefix, to_string); -} - -static const char* const condition_type_table[_CONDITION_TYPE_MAX] = { - [CONDITION_ARCHITECTURE] = "ConditionArchitecture", - [CONDITION_VIRTUALIZATION] = "ConditionVirtualization", - [CONDITION_HOST] = "ConditionHost", - [CONDITION_KERNEL_COMMAND_LINE] = "ConditionKernelCommandLine", - [CONDITION_SECURITY] = "ConditionSecurity", - [CONDITION_CAPABILITY] = "ConditionCapability", - [CONDITION_AC_POWER] = "ConditionACPower", - [CONDITION_NEEDS_UPDATE] = "ConditionNeedsUpdate", - [CONDITION_FIRST_BOOT] = "ConditionFirstBoot", - [CONDITION_PATH_EXISTS] = "ConditionPathExists", - [CONDITION_PATH_EXISTS_GLOB] = "ConditionPathExistsGlob", - [CONDITION_PATH_IS_DIRECTORY] = "ConditionPathIsDirectory", - [CONDITION_PATH_IS_SYMBOLIC_LINK] = "ConditionPathIsSymbolicLink", - [CONDITION_PATH_IS_MOUNT_POINT] = "ConditionPathIsMountPoint", - [CONDITION_PATH_IS_READ_WRITE] = "ConditionPathIsReadWrite", - [CONDITION_DIRECTORY_NOT_EMPTY] = "ConditionDirectoryNotEmpty", - [CONDITION_FILE_NOT_EMPTY] = "ConditionFileNotEmpty", - [CONDITION_FILE_IS_EXECUTABLE] = "ConditionFileIsExecutable", - [CONDITION_NULL] = "ConditionNull" -}; - -DEFINE_STRING_TABLE_LOOKUP(condition_type, ConditionType); - -static const char* const assert_type_table[_CONDITION_TYPE_MAX] = { - [CONDITION_ARCHITECTURE] = "AssertArchitecture", - [CONDITION_VIRTUALIZATION] = "AssertVirtualization", - [CONDITION_HOST] = "AssertHost", - [CONDITION_KERNEL_COMMAND_LINE] = "AssertKernelCommandLine", - [CONDITION_SECURITY] = "AssertSecurity", - [CONDITION_CAPABILITY] = "AssertCapability", - [CONDITION_AC_POWER] = "AssertACPower", - [CONDITION_NEEDS_UPDATE] = "AssertNeedsUpdate", - [CONDITION_FIRST_BOOT] = "AssertFirstBoot", - [CONDITION_PATH_EXISTS] = "AssertPathExists", - [CONDITION_PATH_EXISTS_GLOB] = "AssertPathExistsGlob", - [CONDITION_PATH_IS_DIRECTORY] = "AssertPathIsDirectory", - [CONDITION_PATH_IS_SYMBOLIC_LINK] = "AssertPathIsSymbolicLink", - [CONDITION_PATH_IS_MOUNT_POINT] = "AssertPathIsMountPoint", - [CONDITION_PATH_IS_READ_WRITE] = "AssertPathIsReadWrite", - [CONDITION_DIRECTORY_NOT_EMPTY] = "AssertDirectoryNotEmpty", - [CONDITION_FILE_NOT_EMPTY] = "AssertFileNotEmpty", - [CONDITION_FILE_IS_EXECUTABLE] = "AssertFileIsExecutable", - [CONDITION_NULL] = "AssertNull" -}; - -DEFINE_STRING_TABLE_LOOKUP(assert_type, ConditionType); - -static const char* const condition_result_table[_CONDITION_RESULT_MAX] = { - [CONDITION_UNTESTED] = "untested", - [CONDITION_SUCCEEDED] = "succeeded", - [CONDITION_FAILED] = "failed", - [CONDITION_ERROR] = "error", -}; - -DEFINE_STRING_TABLE_LOOKUP(condition_result, ConditionResult); diff --git a/src/shared/condition.h b/src/shared/condition.h deleted file mode 100644 index bdda04b770..0000000000 --- a/src/shared/condition.h +++ /dev/null @@ -1,94 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 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 <stdio.h> - -#include "list.h" -#include "macro.h" - -typedef enum ConditionType { - CONDITION_ARCHITECTURE, - CONDITION_VIRTUALIZATION, - CONDITION_HOST, - CONDITION_KERNEL_COMMAND_LINE, - CONDITION_SECURITY, - CONDITION_CAPABILITY, - CONDITION_AC_POWER, - - CONDITION_NEEDS_UPDATE, - CONDITION_FIRST_BOOT, - - CONDITION_PATH_EXISTS, - CONDITION_PATH_EXISTS_GLOB, - CONDITION_PATH_IS_DIRECTORY, - CONDITION_PATH_IS_SYMBOLIC_LINK, - CONDITION_PATH_IS_MOUNT_POINT, - CONDITION_PATH_IS_READ_WRITE, - CONDITION_DIRECTORY_NOT_EMPTY, - CONDITION_FILE_NOT_EMPTY, - CONDITION_FILE_IS_EXECUTABLE, - - CONDITION_NULL, - - _CONDITION_TYPE_MAX, - _CONDITION_TYPE_INVALID = -1 -} ConditionType; - -typedef enum ConditionResult { - CONDITION_UNTESTED, - CONDITION_SUCCEEDED, - CONDITION_FAILED, - CONDITION_ERROR, - _CONDITION_RESULT_MAX, - _CONDITION_RESULT_INVALID = -1 -} ConditionResult; - -typedef struct Condition { - ConditionType type:8; - - bool trigger:1; - bool negate:1; - - ConditionResult result:6; - - char *parameter; - - LIST_FIELDS(struct Condition, conditions); -} Condition; - -Condition* condition_new(ConditionType type, const char *parameter, bool trigger, bool negate); -void condition_free(Condition *c); -Condition* condition_free_list(Condition *c); - -int condition_test(Condition *c); - -void condition_dump(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t)); -void condition_dump_list(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t)); - -const char* condition_type_to_string(ConditionType t) _const_; -ConditionType condition_type_from_string(const char *s) _pure_; - -const char* assert_type_to_string(ConditionType t) _const_; -ConditionType assert_type_from_string(const char *s) _pure_; - -const char* condition_result_to_string(ConditionResult r) _const_; -ConditionResult condition_result_from_string(const char *s) _pure_; diff --git a/src/shared/conf-parser.c b/src/shared/conf-parser.c deleted file mode 100644 index 2ec0155b71..0000000000 --- a/src/shared/conf-parser.c +++ /dev/null @@ -1,961 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <limits.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> - -#include "alloc-util.h" -#include "conf-files.h" -#include "conf-parser.h" -#include "extract-word.h" -#include "fd-util.h" -#include "fs-util.h" -#include "log.h" -#include "macro.h" -#include "parse-util.h" -#include "path-util.h" -#include "process-util.h" -#include "signal-util.h" -#include "socket-util.h" -#include "string-util.h" -#include "strv.h" -#include "syslog-util.h" -#include "time-util.h" -#include "utf8.h" - -int config_item_table_lookup( - const void *table, - const char *section, - const char *lvalue, - ConfigParserCallback *func, - int *ltype, - void **data, - void *userdata) { - - const ConfigTableItem *t; - - assert(table); - assert(lvalue); - assert(func); - assert(ltype); - assert(data); - - for (t = table; t->lvalue; t++) { - - if (!streq(lvalue, t->lvalue)) - continue; - - if (!streq_ptr(section, t->section)) - continue; - - *func = t->parse; - *ltype = t->ltype; - *data = t->data; - return 1; - } - - return 0; -} - -int config_item_perf_lookup( - const void *table, - const char *section, - const char *lvalue, - ConfigParserCallback *func, - int *ltype, - void **data, - void *userdata) { - - ConfigPerfItemLookup lookup = (ConfigPerfItemLookup) table; - const ConfigPerfItem *p; - - assert(table); - assert(lvalue); - assert(func); - assert(ltype); - assert(data); - - if (!section) - p = lookup(lvalue, strlen(lvalue)); - else { - char *key; - - key = strjoin(section, ".", lvalue, NULL); - if (!key) - return -ENOMEM; - - p = lookup(key, strlen(key)); - free(key); - } - - if (!p) - return 0; - - *func = p->parse; - *ltype = p->ltype; - *data = (uint8_t*) userdata + p->offset; - return 1; -} - -/* Run the user supplied parser for an assignment */ -static int next_assignment(const char *unit, - const char *filename, - unsigned line, - ConfigItemLookup lookup, - const void *table, - const char *section, - unsigned section_line, - const char *lvalue, - const char *rvalue, - bool relaxed, - void *userdata) { - - ConfigParserCallback func = NULL; - int ltype = 0; - void *data = NULL; - int r; - - assert(filename); - assert(line > 0); - assert(lookup); - assert(lvalue); - assert(rvalue); - - r = lookup(table, section, lvalue, &func, <ype, &data, userdata); - if (r < 0) - return r; - - if (r > 0) { - if (func) - return func(unit, filename, line, section, section_line, - lvalue, ltype, rvalue, data, userdata); - - return 0; - } - - /* Warn about unknown non-extension fields. */ - if (!relaxed && !startswith(lvalue, "X-")) - log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown lvalue '%s' in section '%s'", lvalue, section); - - return 0; -} - -/* Parse a variable assignment line */ -static int parse_line(const char* unit, - const char *filename, - unsigned line, - const char *sections, - ConfigItemLookup lookup, - const void *table, - bool relaxed, - bool allow_include, - char **section, - unsigned *section_line, - bool *section_ignored, - char *l, - void *userdata) { - - char *e; - - assert(filename); - assert(line > 0); - assert(lookup); - assert(l); - - l = strstrip(l); - - if (!*l) - return 0; - - if (strchr(COMMENTS "\n", *l)) - return 0; - - if (startswith(l, ".include ")) { - _cleanup_free_ char *fn = NULL; - - /* .includes are a bad idea, we only support them here - * for historical reasons. They create cyclic include - * problems and make it difficult to detect - * configuration file changes with an easy - * stat(). Better approaches, such as .d/ drop-in - * snippets exist. - * - * Support for them should be eventually removed. */ - - if (!allow_include) { - log_syntax(unit, LOG_ERR, filename, line, 0, ".include not allowed here. Ignoring."); - return 0; - } - - fn = file_in_same_dir(filename, strstrip(l+9)); - if (!fn) - return -ENOMEM; - - return config_parse(unit, fn, NULL, sections, lookup, table, relaxed, false, false, userdata); - } - - if (*l == '[') { - size_t k; - char *n; - - k = strlen(l); - assert(k > 0); - - if (l[k-1] != ']') { - log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid section header '%s'", l); - return -EBADMSG; - } - - n = strndup(l+1, k-2); - if (!n) - return -ENOMEM; - - if (sections && !nulstr_contains(sections, n)) { - - if (!relaxed && !startswith(n, "X-")) - log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown section '%s'. Ignoring.", n); - - free(n); - *section = mfree(*section); - *section_line = 0; - *section_ignored = true; - } else { - free(*section); - *section = n; - *section_line = line; - *section_ignored = false; - } - - return 0; - } - - if (sections && !*section) { - - if (!relaxed && !*section_ignored) - log_syntax(unit, LOG_WARNING, filename, line, 0, "Assignment outside of section. Ignoring."); - - return 0; - } - - e = strchr(l, '='); - if (!e) { - log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing '='."); - return -EINVAL; - } - - *e = 0; - e++; - - return next_assignment(unit, - filename, - line, - lookup, - table, - *section, - *section_line, - strstrip(l), - strstrip(e), - relaxed, - userdata); -} - -/* Go through the file and parse each line */ -int config_parse(const char *unit, - const char *filename, - FILE *f, - const char *sections, - ConfigItemLookup lookup, - const void *table, - bool relaxed, - bool allow_include, - bool warn, - void *userdata) { - - _cleanup_free_ char *section = NULL, *continuation = NULL; - _cleanup_fclose_ FILE *ours = NULL; - unsigned line = 0, section_line = 0; - bool section_ignored = false, allow_bom = true; - int r; - - assert(filename); - assert(lookup); - - if (!f) { - f = ours = fopen(filename, "re"); - if (!f) { - /* Only log on request, except for ENOENT, - * since we return 0 to the caller. */ - if (warn || errno == ENOENT) - log_full(errno == ENOENT ? LOG_DEBUG : LOG_ERR, - "Failed to open configuration file '%s': %m", filename); - return errno == ENOENT ? 0 : -errno; - } - } - - fd_warn_permissions(filename, fileno(f)); - - for (;;) { - char buf[LINE_MAX], *l, *p, *c = NULL, *e; - bool escaped = false; - - if (!fgets(buf, sizeof buf, f)) { - if (feof(f)) - break; - - return log_error_errno(errno, "Failed to read configuration file '%s': %m", filename); - } - - l = buf; - if (allow_bom && startswith(l, UTF8_BYTE_ORDER_MARK)) - l += strlen(UTF8_BYTE_ORDER_MARK); - allow_bom = false; - - truncate_nl(l); - - if (continuation) { - c = strappend(continuation, l); - if (!c) { - if (warn) - log_oom(); - return -ENOMEM; - } - - continuation = mfree(continuation); - p = c; - } else - p = l; - - for (e = p; *e; e++) { - if (escaped) - escaped = false; - else if (*e == '\\') - escaped = true; - } - - if (escaped) { - *(e-1) = ' '; - - if (c) - continuation = c; - else { - continuation = strdup(l); - if (!continuation) { - if (warn) - log_oom(); - return -ENOMEM; - } - } - - continue; - } - - r = parse_line(unit, - filename, - ++line, - sections, - lookup, - table, - relaxed, - allow_include, - §ion, - §ion_line, - §ion_ignored, - p, - userdata); - free(c); - - if (r < 0) { - if (warn) - log_warning_errno(r, "Failed to parse file '%s': %m", - filename); - return r; - } - } - - return 0; -} - -static int config_parse_many_files( - const char *conf_file, - char **files, - const char *sections, - ConfigItemLookup lookup, - const void *table, - bool relaxed, - void *userdata) { - - char **fn; - int r; - - if (conf_file) { - r = config_parse(NULL, conf_file, NULL, sections, lookup, table, relaxed, false, true, userdata); - if (r < 0) - return r; - } - - STRV_FOREACH(fn, files) { - r = config_parse(NULL, *fn, NULL, sections, lookup, table, relaxed, false, true, userdata); - if (r < 0) - return r; - } - - return 0; -} - -/* Parse each config file in the directories specified as nulstr. */ -int config_parse_many_nulstr( - const char *conf_file, - const char *conf_file_dirs, - const char *sections, - ConfigItemLookup lookup, - const void *table, - bool relaxed, - void *userdata) { - - _cleanup_strv_free_ char **files = NULL; - int r; - - r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs); - if (r < 0) - return r; - - return config_parse_many_files(conf_file, files, - sections, lookup, table, relaxed, userdata); -} - -/* Parse each config file in the directories specified as strv. */ -int config_parse_many( - const char *conf_file, - const char* const* conf_file_dirs, - const char *dropin_dirname, - const char *sections, - ConfigItemLookup lookup, - const void *table, - bool relaxed, - void *userdata) { - - _cleanup_strv_free_ char **dropin_dirs = NULL; - _cleanup_strv_free_ char **files = NULL; - const char *suffix; - int r; - - suffix = strjoina("/", dropin_dirname); - r = strv_extend_strv_concat(&dropin_dirs, (char**) conf_file_dirs, suffix); - if (r < 0) - return r; - - r = conf_files_list_strv(&files, ".conf", NULL, (const char* const*) dropin_dirs); - if (r < 0) - return r; - - return config_parse_many_files(conf_file, files, - sections, lookup, table, relaxed, userdata); -} - -#define DEFINE_PARSER(type, vartype, conv_func) \ - int config_parse_##type( \ - 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) { \ - \ - vartype *i = data; \ - int r; \ - \ - assert(filename); \ - assert(lvalue); \ - assert(rvalue); \ - assert(data); \ - \ - r = conv_func(rvalue, i); \ - if (r < 0) \ - log_syntax(unit, LOG_ERR, filename, line, r, \ - "Failed to parse %s value, ignoring: %s", \ - #type, rvalue); \ - \ - return 0; \ - } \ - struct __useless_struct_to_allow_trailing_semicolon__ - -DEFINE_PARSER(int, int, safe_atoi); -DEFINE_PARSER(long, long, safe_atoli); -DEFINE_PARSER(uint16, uint16_t, safe_atou16); -DEFINE_PARSER(uint32, uint32_t, safe_atou32); -DEFINE_PARSER(uint64, uint64_t, safe_atou64); -DEFINE_PARSER(unsigned, unsigned, safe_atou); -DEFINE_PARSER(double, double, safe_atod); -DEFINE_PARSER(nsec, nsec_t, parse_nsec); -DEFINE_PARSER(sec, usec_t, parse_sec); -DEFINE_PARSER(mode, mode_t, parse_mode); - -int config_parse_iec_size(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) { - - size_t *sz = data; - uint64_t v; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - r = parse_size(rvalue, 1024, &v); - if (r < 0 || (uint64_t) (size_t) v != v) { - log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue); - return 0; - } - - *sz = (size_t) v; - return 0; -} - -int config_parse_si_size(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) { - - size_t *sz = data; - uint64_t v; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - r = parse_size(rvalue, 1000, &v); - if (r < 0 || (uint64_t) (size_t) v != v) { - log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue); - return 0; - } - - *sz = (size_t) v; - return 0; -} - -int config_parse_iec_uint64(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) { - - uint64_t *bytes = data; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - r = parse_size(rvalue, 1024, bytes); - if (r < 0) - log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue); - - return 0; -} - -int config_parse_bool(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) { - - int k; - bool *b = data; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - k = parse_boolean(rvalue); - if (k < 0) { - log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse boolean value, ignoring: %s", rvalue); - return 0; - } - - *b = !!k; - return 0; -} - -int config_parse_tristate( - 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) { - - int k, *t = data; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - /* A tristate is pretty much a boolean, except that it can - * also take the special value -1, indicating "uninitialized", - * much like NULL is for a pointer type. */ - - k = parse_boolean(rvalue); - if (k < 0) { - log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse boolean value, ignoring: %s", rvalue); - return 0; - } - - *t = !!k; - return 0; -} - -int config_parse_string( - 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) { - - char **s = data, *n; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (!utf8_is_valid(rvalue)) { - log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue); - return 0; - } - - if (isempty(rvalue)) - n = NULL; - else { - n = strdup(rvalue); - if (!n) - return log_oom(); - } - - free(*s); - *s = n; - - return 0; -} - -int config_parse_path( - 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) { - - char **s = data, *n; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (!utf8_is_valid(rvalue)) { - log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue); - return 0; - } - - if (!path_is_absolute(rvalue)) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Not an absolute path, ignoring: %s", rvalue); - return 0; - } - - n = strdup(rvalue); - if (!n) - return log_oom(); - - path_kill_slashes(n); - - free(*s); - *s = n; - - return 0; -} - -int config_parse_strv(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) { - - char ***sv = data; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (isempty(rvalue)) { - char **empty; - - /* Empty assignment resets the list. As a special rule - * we actually fill in a real empty array here rather - * than NULL, since some code wants to know if - * something was set at all... */ - empty = new0(char*, 1); - if (!empty) - return log_oom(); - - strv_free(*sv); - *sv = empty; - - return 0; - } - - for (;;) { - char *word = NULL; - - r = extract_first_word(&rvalue, &word, WHITESPACE, EXTRACT_QUOTES|EXTRACT_RETAIN_ESCAPE); - if (r == 0) - break; - if (r == -ENOMEM) - return log_oom(); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); - break; - } - - if (!utf8_is_valid(word)) { - log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue); - free(word); - continue; - } - r = strv_consume(sv, word); - if (r < 0) - return log_oom(); - } - - return 0; -} - -int config_parse_log_facility( - 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) { - - - int *o = data, x; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - x = log_facility_unshifted_from_string(rvalue); - if (x < 0) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse log facility, ignoring: %s", rvalue); - return 0; - } - - *o = (x << 3) | LOG_PRI(*o); - - return 0; -} - -int config_parse_log_level( - 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) { - - - int *o = data, x; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - x = log_level_from_string(rvalue); - if (x < 0) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse log level, ignoring: %s", rvalue); - return 0; - } - - *o = (*o & LOG_FACMASK) | x; - return 0; -} - -int config_parse_signal( - 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) { - - int *sig = data, r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(sig); - - r = signal_from_string_try_harder(rvalue); - if (r <= 0) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse signal name, ignoring: %s", rvalue); - return 0; - } - - *sig = r; - return 0; -} - -int config_parse_personality( - 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) { - - unsigned long *personality = data, p; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(personality); - - p = personality_from_string(rvalue); - if (p == PERSONALITY_INVALID) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse personality, ignoring: %s", rvalue); - return 0; - } - - *personality = p; - return 0; -} - -int config_parse_ifname( - 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) { - - char **s = data; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (isempty(rvalue)) { - *s = mfree(*s); - return 0; - } - - if (!ifname_valid(rvalue)) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Interface name is not valid or too long, ignoring assignment: %s", rvalue); - return 0; - } - - r = free_and_strdup(s, rvalue); - if (r < 0) - return log_oom(); - - return 0; -} diff --git a/src/shared/conf-parser.h b/src/shared/conf-parser.h deleted file mode 100644 index 26ff3df16f..0000000000 --- a/src/shared/conf-parser.h +++ /dev/null @@ -1,242 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 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 <stdbool.h> -#include <stddef.h> -#include <stdio.h> -#include <syslog.h> - -#include "alloc-util.h" -#include "log.h" -#include "macro.h" - -/* An abstract parser for simple, line based, shallow configuration - * files consisting of variable assignments only. */ - -/* Prototype for a parser for a specific configuration setting */ -typedef int (*ConfigParserCallback)(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); - -/* Wraps information for parsing a specific configuration variable, to - * be stored in a simple array */ -typedef struct ConfigTableItem { - const char *section; /* Section */ - const char *lvalue; /* Name of the variable */ - ConfigParserCallback parse; /* Function that is called to parse the variable's value */ - int ltype; /* Distinguish different variables passed to the same callback */ - void *data; /* Where to store the variable's data */ -} ConfigTableItem; - -/* Wraps information for parsing a specific configuration variable, to - * be stored in a gperf perfect hashtable */ -typedef struct ConfigPerfItem { - const char *section_and_lvalue; /* Section + "." + name of the variable */ - ConfigParserCallback parse; /* Function that is called to parse the variable's value */ - int ltype; /* Distinguish different variables passed to the same callback */ - size_t offset; /* Offset where to store data, from the beginning of userdata */ -} ConfigPerfItem; - -/* Prototype for a low-level gperf lookup function */ -typedef const ConfigPerfItem* (*ConfigPerfItemLookup)(const char *section_and_lvalue, unsigned length); - -/* Prototype for a generic high-level lookup function */ -typedef int (*ConfigItemLookup)( - const void *table, - const char *section, - const char *lvalue, - ConfigParserCallback *func, - int *ltype, - void **data, - void *userdata); - -/* Linear table search implementation of ConfigItemLookup, based on - * ConfigTableItem arrays */ -int config_item_table_lookup(const void *table, const char *section, const char *lvalue, ConfigParserCallback *func, int *ltype, void **data, void *userdata); - -/* gperf implementation of ConfigItemLookup, based on gperf - * ConfigPerfItem tables */ -int config_item_perf_lookup(const void *table, const char *section, const char *lvalue, ConfigParserCallback *func, int *ltype, void **data, void *userdata); - -int config_parse( - const char *unit, - const char *filename, - FILE *f, - const char *sections, /* nulstr */ - ConfigItemLookup lookup, - const void *table, - bool relaxed, - bool allow_include, - bool warn, - void *userdata); - -int config_parse_many_nulstr( - const char *conf_file, /* possibly NULL */ - const char *conf_file_dirs, /* nulstr */ - const char *sections, /* nulstr */ - ConfigItemLookup lookup, - const void *table, - bool relaxed, - void *userdata); - -int config_parse_many( - const char *conf_file, /* possibly NULL */ - const char* const* conf_file_dirs, - const char *dropin_dirname, - const char *sections, /* nulstr */ - ConfigItemLookup lookup, - const void *table, - bool relaxed, - void *userdata); - -/* Generic parsers */ -int config_parse_int(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); -int config_parse_unsigned(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); -int config_parse_long(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); -int config_parse_uint16(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); -int config_parse_uint32(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); -int config_parse_uint64(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); -int config_parse_double(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); -int config_parse_iec_size(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); -int config_parse_si_size(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); -int config_parse_iec_uint64(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); -int config_parse_bool(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); -int config_parse_tristate(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); -int config_parse_string(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); -int config_parse_path(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); -int config_parse_strv(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); -int config_parse_sec(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); -int config_parse_nsec(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); -int config_parse_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); -int config_parse_log_facility(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); -int config_parse_log_level(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); -int config_parse_signal(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); -int config_parse_personality(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); -int config_parse_ifname(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); - -#define DEFINE_CONFIG_PARSE_ENUM(function,name,type,msg) \ - int function(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) { \ - \ - type *i = data, x; \ - \ - assert(filename); \ - assert(lvalue); \ - assert(rvalue); \ - assert(data); \ - \ - if ((x = name##_from_string(rvalue)) < 0) { \ - log_syntax(unit, LOG_ERR, filename, line, -x, \ - msg ", ignoring: %s", rvalue); \ - return 0; \ - } \ - \ - *i = x; \ - return 0; \ - } - -#define DEFINE_CONFIG_PARSE_ENUMV(function,name,type,invalid,msg) \ - int function(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) { \ - \ - type **enums = data, x, *ys; \ - _cleanup_free_ type *xs = NULL; \ - const char *word, *state; \ - size_t l, i = 0; \ - \ - assert(filename); \ - assert(lvalue); \ - assert(rvalue); \ - assert(data); \ - \ - xs = new0(type, 1); \ - if (!xs) \ - return -ENOMEM; \ - \ - *xs = invalid; \ - \ - FOREACH_WORD(word, l, rvalue, state) { \ - _cleanup_free_ char *en = NULL; \ - type *new_xs; \ - \ - en = strndup(word, l); \ - if (!en) \ - return -ENOMEM; \ - \ - if ((x = name##_from_string(en)) < 0) { \ - log_syntax(unit, LOG_ERR, filename, line, \ - -x, msg ", ignoring: %s", en); \ - continue; \ - } \ - \ - for (ys = xs; x != invalid && *ys != invalid; ys++) { \ - if (*ys == x) { \ - log_syntax(unit, LOG_ERR, filename, \ - line, -x, \ - "Duplicate entry, ignoring: %s", \ - en); \ - x = invalid; \ - } \ - } \ - \ - if (x == invalid) \ - continue; \ - \ - *(xs + i) = x; \ - new_xs = realloc(xs, (++i + 1) * sizeof(type)); \ - if (new_xs) \ - xs = new_xs; \ - else \ - return -ENOMEM; \ - \ - *(xs + i) = invalid; \ - } \ - \ - free(*enums); \ - *enums = xs; \ - xs = NULL; \ - \ - return 0; \ - } diff --git a/src/shared/dev-setup.c b/src/shared/dev-setup.c deleted file mode 100644 index b2d464c117..0000000000 --- a/src/shared/dev-setup.c +++ /dev/null @@ -1,73 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010-2012 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 <unistd.h> - -#include "alloc-util.h" -#include "dev-setup.h" -#include "label.h" -#include "log.h" -#include "path-util.h" -#include "user-util.h" -#include "util.h" - -int dev_setup(const char *prefix, uid_t uid, gid_t gid) { - static const char symlinks[] = - "-/proc/kcore\0" "/dev/core\0" - "/proc/self/fd\0" "/dev/fd\0" - "/proc/self/fd/0\0" "/dev/stdin\0" - "/proc/self/fd/1\0" "/dev/stdout\0" - "/proc/self/fd/2\0" "/dev/stderr\0"; - - const char *j, *k; - int r; - - NULSTR_FOREACH_PAIR(j, k, symlinks) { - _cleanup_free_ char *link_name = NULL; - const char *n; - - if (j[0] == '-') { - j++; - - if (access(j, F_OK) < 0) - continue; - } - - if (prefix) { - link_name = prefix_root(prefix, k); - if (!link_name) - return -ENOMEM; - - n = link_name; - } else - n = k; - - r = symlink_label(j, n); - if (r < 0) - log_debug_errno(r, "Failed to symlink %s to %s: %m", j, n); - - if (uid != UID_INVALID || gid != GID_INVALID) - if (lchown(n, uid, gid) < 0) - log_debug_errno(errno, "Failed to chown %s: %m", n); - } - - return 0; -} diff --git a/src/shared/dev-setup.h b/src/shared/dev-setup.h deleted file mode 100644 index 5766a62060..0000000000 --- a/src/shared/dev-setup.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010-2012 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 <sys/types.h> - -int dev_setup(const char *prefix, uid_t uid, gid_t gid); diff --git a/src/shared/dns-domain.c b/src/shared/dns-domain.c deleted file mode 100644 index 892f0aadf5..0000000000 --- a/src/shared/dns-domain.c +++ /dev/null @@ -1,1326 +0,0 @@ -/*** - 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/>. - ***/ - -#ifdef HAVE_LIBIDN -#include <idna.h> -#include <stringprep.h> -#endif - -#include <endian.h> -#include <netinet/in.h> -#include <stdio.h> -#include <string.h> -#include <sys/socket.h> - -#include "alloc-util.h" -#include "dns-domain.h" -#include "hashmap.h" -#include "hexdecoct.h" -#include "in-addr-util.h" -#include "macro.h" -#include "parse-util.h" -#include "string-util.h" -#include "strv.h" -#include "utf8.h" - -int dns_label_unescape(const char **name, char *dest, size_t sz) { - const char *n; - char *d; - int r = 0; - - assert(name); - assert(*name); - - n = *name; - d = dest; - - for (;;) { - if (*n == '.') { - n++; - break; - } - - if (*n == 0) - break; - - if (r >= DNS_LABEL_MAX) - return -EINVAL; - - if (sz <= 0) - return -ENOBUFS; - - if (*n == '\\') { - /* Escaped character */ - - n++; - - if (*n == 0) - /* Ending NUL */ - return -EINVAL; - - else if (*n == '\\' || *n == '.') { - /* Escaped backslash or dot */ - - if (d) - *(d++) = *n; - sz--; - r++; - n++; - - } else if (n[0] >= '0' && n[0] <= '9') { - unsigned k; - - /* Escaped literal ASCII character */ - - if (!(n[1] >= '0' && n[1] <= '9') || - !(n[2] >= '0' && n[2] <= '9')) - return -EINVAL; - - k = ((unsigned) (n[0] - '0') * 100) + - ((unsigned) (n[1] - '0') * 10) + - ((unsigned) (n[2] - '0')); - - /* Don't allow anything that doesn't - * fit in 8bit. Note that we do allow - * control characters, as some servers - * (e.g. cloudflare) are happy to - * generate labels with them - * inside. */ - if (k > 255) - return -EINVAL; - - if (d) - *(d++) = (char) k; - sz--; - r++; - - n += 3; - } else - return -EINVAL; - - } else if ((uint8_t) *n >= (uint8_t) ' ' && *n != 127) { - - /* Normal character */ - - if (d) - *(d++) = *n; - sz--; - r++; - n++; - } else - return -EINVAL; - } - - /* Empty label that is not at the end? */ - if (r == 0 && *n) - return -EINVAL; - - /* More than one trailing dot? */ - if (*n == '.') - return -EINVAL; - - if (sz >= 1 && d) - *d = 0; - - *name = n; - return r; -} - -/* @label_terminal: terminal character of a label, updated to point to the terminal character of - * the previous label (always skipping one dot) or to NULL if there are no more - * labels. */ -int dns_label_unescape_suffix(const char *name, const char **label_terminal, char *dest, size_t sz) { - const char *terminal; - int r; - - assert(name); - assert(label_terminal); - assert(dest); - - /* no more labels */ - if (!*label_terminal) { - if (sz >= 1) - *dest = 0; - - return 0; - } - - terminal = *label_terminal; - assert(*terminal == '.' || *terminal == 0); - - /* Skip current terminal character (and accept domain names ending it ".") */ - if (*terminal == 0) - terminal--; - if (terminal >= name && *terminal == '.') - terminal--; - - /* Point name to the last label, and terminal to the preceding terminal symbol (or make it a NULL pointer) */ - for (;;) { - if (terminal < name) { - /* Reached the first label, so indicate that there are no more */ - terminal = NULL; - break; - } - - /* Find the start of the last label */ - if (*terminal == '.') { - const char *y; - unsigned slashes = 0; - - for (y = terminal - 1; y >= name && *y == '\\'; y--) - slashes++; - - if (slashes % 2 == 0) { - /* The '.' was not escaped */ - name = terminal + 1; - break; - } else { - terminal = y; - continue; - } - } - - terminal--; - } - - r = dns_label_unescape(&name, dest, sz); - if (r < 0) - return r; - - *label_terminal = terminal; - - return r; -} - -int dns_label_escape(const char *p, size_t l, char *dest, size_t sz) { - char *q; - - /* DNS labels must be between 1 and 63 characters long. A - * zero-length label does not exist. See RFC 2182, Section - * 11. */ - - if (l <= 0 || l > DNS_LABEL_MAX) - return -EINVAL; - if (sz < 1) - return -ENOBUFS; - - assert(p); - assert(dest); - - q = dest; - while (l > 0) { - - if (*p == '.' || *p == '\\') { - - /* Dot or backslash */ - - if (sz < 3) - return -ENOBUFS; - - *(q++) = '\\'; - *(q++) = *p; - - sz -= 2; - - } else if (*p == '_' || - *p == '-' || - (*p >= '0' && *p <= '9') || - (*p >= 'a' && *p <= 'z') || - (*p >= 'A' && *p <= 'Z')) { - - /* Proper character */ - - if (sz < 2) - return -ENOBUFS; - - *(q++) = *p; - sz -= 1; - - } else { - - /* Everything else */ - - if (sz < 5) - return -ENOBUFS; - - *(q++) = '\\'; - *(q++) = '0' + (char) ((uint8_t) *p / 100); - *(q++) = '0' + (char) (((uint8_t) *p / 10) % 10); - *(q++) = '0' + (char) ((uint8_t) *p % 10); - - sz -= 4; - } - - p++; - l--; - } - - *q = 0; - return (int) (q - dest); -} - -int dns_label_escape_new(const char *p, size_t l, char **ret) { - _cleanup_free_ char *s = NULL; - int r; - - assert(p); - assert(ret); - - if (l <= 0 || l > DNS_LABEL_MAX) - return -EINVAL; - - s = new(char, DNS_LABEL_ESCAPED_MAX); - if (!s) - return -ENOMEM; - - r = dns_label_escape(p, l, s, DNS_LABEL_ESCAPED_MAX); - if (r < 0) - return r; - - *ret = s; - s = NULL; - - return r; -} - -int dns_label_apply_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max) { -#ifdef HAVE_LIBIDN - _cleanup_free_ uint32_t *input = NULL; - size_t input_size, l; - const char *p; - bool contains_8bit = false; - char buffer[DNS_LABEL_MAX+1]; - - assert(encoded); - assert(decoded); - - /* Converts an U-label into an A-label */ - - if (encoded_size <= 0) - return -EINVAL; - - for (p = encoded; p < encoded + encoded_size; p++) - if ((uint8_t) *p > 127) - contains_8bit = true; - - if (!contains_8bit) { - if (encoded_size > DNS_LABEL_MAX) - return -EINVAL; - - return 0; - } - - input = stringprep_utf8_to_ucs4(encoded, encoded_size, &input_size); - if (!input) - return -ENOMEM; - - if (idna_to_ascii_4i(input, input_size, buffer, 0) != 0) - return -EINVAL; - - l = strlen(buffer); - - /* Verify that the result is not longer than one DNS label. */ - if (l <= 0 || l > DNS_LABEL_MAX) - return -EINVAL; - if (l > decoded_max) - return -ENOBUFS; - - memcpy(decoded, buffer, l); - - /* If there's room, append a trailing NUL byte, but only then */ - if (decoded_max > l) - decoded[l] = 0; - - return (int) l; -#else - return 0; -#endif -} - -int dns_label_undo_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max) { -#ifdef HAVE_LIBIDN - size_t input_size, output_size; - _cleanup_free_ uint32_t *input = NULL; - _cleanup_free_ char *result = NULL; - uint32_t *output = NULL; - size_t w; - - /* To be invoked after unescaping. Converts an A-label into an U-label. */ - - assert(encoded); - assert(decoded); - - if (encoded_size <= 0 || encoded_size > DNS_LABEL_MAX) - return -EINVAL; - - if (encoded_size < sizeof(IDNA_ACE_PREFIX)-1) - return 0; - - if (memcmp(encoded, IDNA_ACE_PREFIX, sizeof(IDNA_ACE_PREFIX) -1) != 0) - return 0; - - input = stringprep_utf8_to_ucs4(encoded, encoded_size, &input_size); - if (!input) - return -ENOMEM; - - output_size = input_size; - output = newa(uint32_t, output_size); - - idna_to_unicode_44i(input, input_size, output, &output_size, 0); - - result = stringprep_ucs4_to_utf8(output, output_size, NULL, &w); - if (!result) - return -ENOMEM; - if (w <= 0) - return -EINVAL; - if (w > decoded_max) - return -ENOBUFS; - - memcpy(decoded, result, w); - - /* Append trailing NUL byte if there's space, but only then. */ - if (decoded_max > w) - decoded[w] = 0; - - return w; -#else - return 0; -#endif -} - -int dns_name_concat(const char *a, const char *b, char **_ret) { - _cleanup_free_ char *ret = NULL; - size_t n = 0, allocated = 0; - const char *p; - bool first = true; - int r; - - if (a) - p = a; - else if (b) { - p = b; - b = NULL; - } else - goto finish; - - for (;;) { - char label[DNS_LABEL_MAX]; - - r = dns_label_unescape(&p, label, sizeof(label)); - if (r < 0) - return r; - if (r == 0) { - if (*p != 0) - return -EINVAL; - - if (b) { - /* Now continue with the second string, if there is one */ - p = b; - b = NULL; - continue; - } - - break; - } - - if (_ret) { - if (!GREEDY_REALLOC(ret, allocated, n + !first + DNS_LABEL_ESCAPED_MAX)) - return -ENOMEM; - - r = dns_label_escape(label, r, ret + n + !first, DNS_LABEL_ESCAPED_MAX); - if (r < 0) - return r; - - if (!first) - ret[n] = '.'; - } else { - char escaped[DNS_LABEL_ESCAPED_MAX]; - - r = dns_label_escape(label, r, escaped, sizeof(escaped)); - if (r < 0) - return r; - } - - if (!first) - n++; - else - first = false; - - n += r; - } - -finish: - if (n > DNS_HOSTNAME_MAX) - return -EINVAL; - - if (_ret) { - if (n == 0) { - /* Nothing appended? If so, generate at least a single dot, to indicate the DNS root domain */ - if (!GREEDY_REALLOC(ret, allocated, 2)) - return -ENOMEM; - - ret[n++] = '.'; - } else { - if (!GREEDY_REALLOC(ret, allocated, n + 1)) - return -ENOMEM; - } - - ret[n] = 0; - *_ret = ret; - ret = NULL; - } - - return 0; -} - -void dns_name_hash_func(const void *s, struct siphash *state) { - const char *p = s; - int r; - - assert(p); - - for (;;) { - char label[DNS_LABEL_MAX+1]; - - r = dns_label_unescape(&p, label, sizeof(label)); - if (r < 0) - break; - if (r == 0) - break; - - ascii_strlower_n(label, r); - siphash24_compress(label, r, state); - siphash24_compress_byte(0, state); /* make sure foobar and foo.bar result in different hashes */ - } - - /* enforce that all names are terminated by the empty label */ - string_hash_func("", state); -} - -int dns_name_compare_func(const void *a, const void *b) { - const char *x, *y; - int r, q; - - assert(a); - assert(b); - - x = (const char *) a + strlen(a); - y = (const char *) b + strlen(b); - - for (;;) { - char la[DNS_LABEL_MAX], lb[DNS_LABEL_MAX]; - - if (x == NULL && y == NULL) - return 0; - - r = dns_label_unescape_suffix(a, &x, la, sizeof(la)); - q = dns_label_unescape_suffix(b, &y, lb, sizeof(lb)); - if (r < 0 || q < 0) - return r - q; - - r = ascii_strcasecmp_nn(la, r, lb, q); - if (r != 0) - return r; - } -} - -const struct hash_ops dns_name_hash_ops = { - .hash = dns_name_hash_func, - .compare = dns_name_compare_func -}; - -int dns_name_equal(const char *x, const char *y) { - int r, q; - - assert(x); - assert(y); - - for (;;) { - char la[DNS_LABEL_MAX], lb[DNS_LABEL_MAX]; - - r = dns_label_unescape(&x, la, sizeof(la)); - if (r < 0) - return r; - - q = dns_label_unescape(&y, lb, sizeof(lb)); - if (q < 0) - return q; - - if (r != q) - return false; - if (r == 0) - return true; - - if (ascii_strcasecmp_n(la, lb, r) != 0) - return false; - } -} - -int dns_name_endswith(const char *name, const char *suffix) { - const char *n, *s, *saved_n = NULL; - int r, q; - - assert(name); - assert(suffix); - - n = name; - s = suffix; - - for (;;) { - char ln[DNS_LABEL_MAX], ls[DNS_LABEL_MAX]; - - r = dns_label_unescape(&n, ln, sizeof(ln)); - if (r < 0) - return r; - - if (!saved_n) - saved_n = n; - - q = dns_label_unescape(&s, ls, sizeof(ls)); - if (q < 0) - return q; - - if (r == 0 && q == 0) - return true; - if (r == 0 && saved_n == n) - return false; - - if (r != q || ascii_strcasecmp_n(ln, ls, r) != 0) { - - /* Not the same, let's jump back, and try with the next label again */ - s = suffix; - n = saved_n; - saved_n = NULL; - } - } -} - -int dns_name_startswith(const char *name, const char *prefix) { - const char *n, *p; - int r, q; - - assert(name); - assert(prefix); - - n = name; - p = prefix; - - for (;;) { - char ln[DNS_LABEL_MAX], lp[DNS_LABEL_MAX]; - - r = dns_label_unescape(&p, lp, sizeof(lp)); - if (r < 0) - return r; - if (r == 0) - return true; - - q = dns_label_unescape(&n, ln, sizeof(ln)); - if (q < 0) - return q; - - if (r != q) - return false; - if (ascii_strcasecmp_n(ln, lp, r) != 0) - return false; - } -} - -int dns_name_change_suffix(const char *name, const char *old_suffix, const char *new_suffix, char **ret) { - const char *n, *s, *saved_before = NULL, *saved_after = NULL, *prefix; - int r, q; - - assert(name); - assert(old_suffix); - assert(new_suffix); - assert(ret); - - n = name; - s = old_suffix; - - for (;;) { - char ln[DNS_LABEL_MAX], ls[DNS_LABEL_MAX]; - - if (!saved_before) - saved_before = n; - - r = dns_label_unescape(&n, ln, sizeof(ln)); - if (r < 0) - return r; - - if (!saved_after) - saved_after = n; - - q = dns_label_unescape(&s, ls, sizeof(ls)); - if (q < 0) - return q; - - if (r == 0 && q == 0) - break; - if (r == 0 && saved_after == n) { - *ret = NULL; /* doesn't match */ - return 0; - } - - if (r != q || ascii_strcasecmp_n(ln, ls, r) != 0) { - - /* Not the same, let's jump back, and try with the next label again */ - s = old_suffix; - n = saved_after; - saved_after = saved_before = NULL; - } - } - - /* Found it! Now generate the new name */ - prefix = strndupa(name, saved_before - name); - - r = dns_name_concat(prefix, new_suffix, ret); - if (r < 0) - return r; - - return 1; -} - -int dns_name_between(const char *a, const char *b, const char *c) { - int n; - - /* Determine if b is strictly greater than a and strictly smaller than c. - We consider the order of names to be circular, so that if a is - strictly greater than c, we consider b to be between them if it is - either greater than a or smaller than c. This is how the canonical - DNS name order used in NSEC records work. */ - - n = dns_name_compare_func(a, c); - if (n == 0) - return -EINVAL; - else if (n < 0) - /* a<---b--->c */ - return dns_name_compare_func(a, b) < 0 && - dns_name_compare_func(b, c) < 0; - else - /* <--b--c a--b--> */ - return dns_name_compare_func(b, c) < 0 || - dns_name_compare_func(a, b) < 0; -} - -int dns_name_reverse(int family, const union in_addr_union *a, char **ret) { - const uint8_t *p; - int r; - - assert(a); - assert(ret); - - p = (const uint8_t*) a; - - if (family == AF_INET) - r = asprintf(ret, "%u.%u.%u.%u.in-addr.arpa", p[3], p[2], p[1], p[0]); - else if (family == AF_INET6) - r = asprintf(ret, "%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.ip6.arpa", - hexchar(p[15] & 0xF), hexchar(p[15] >> 4), hexchar(p[14] & 0xF), hexchar(p[14] >> 4), - hexchar(p[13] & 0xF), hexchar(p[13] >> 4), hexchar(p[12] & 0xF), hexchar(p[12] >> 4), - hexchar(p[11] & 0xF), hexchar(p[11] >> 4), hexchar(p[10] & 0xF), hexchar(p[10] >> 4), - hexchar(p[ 9] & 0xF), hexchar(p[ 9] >> 4), hexchar(p[ 8] & 0xF), hexchar(p[ 8] >> 4), - hexchar(p[ 7] & 0xF), hexchar(p[ 7] >> 4), hexchar(p[ 6] & 0xF), hexchar(p[ 6] >> 4), - hexchar(p[ 5] & 0xF), hexchar(p[ 5] >> 4), hexchar(p[ 4] & 0xF), hexchar(p[ 4] >> 4), - hexchar(p[ 3] & 0xF), hexchar(p[ 3] >> 4), hexchar(p[ 2] & 0xF), hexchar(p[ 2] >> 4), - hexchar(p[ 1] & 0xF), hexchar(p[ 1] >> 4), hexchar(p[ 0] & 0xF), hexchar(p[ 0] >> 4)); - else - return -EAFNOSUPPORT; - if (r < 0) - return -ENOMEM; - - return 0; -} - -int dns_name_address(const char *p, int *family, union in_addr_union *address) { - int r; - - assert(p); - assert(family); - assert(address); - - r = dns_name_endswith(p, "in-addr.arpa"); - if (r < 0) - return r; - if (r > 0) { - uint8_t a[4]; - unsigned i; - - for (i = 0; i < ELEMENTSOF(a); i++) { - char label[DNS_LABEL_MAX+1]; - - r = dns_label_unescape(&p, label, sizeof(label)); - if (r < 0) - return r; - if (r == 0) - return -EINVAL; - if (r > 3) - return -EINVAL; - - r = safe_atou8(label, &a[i]); - if (r < 0) - return r; - } - - r = dns_name_equal(p, "in-addr.arpa"); - if (r <= 0) - return r; - - *family = AF_INET; - address->in.s_addr = htobe32(((uint32_t) a[3] << 24) | - ((uint32_t) a[2] << 16) | - ((uint32_t) a[1] << 8) | - (uint32_t) a[0]); - - return 1; - } - - r = dns_name_endswith(p, "ip6.arpa"); - if (r < 0) - return r; - if (r > 0) { - struct in6_addr a; - unsigned i; - - for (i = 0; i < ELEMENTSOF(a.s6_addr); i++) { - char label[DNS_LABEL_MAX+1]; - int x, y; - - r = dns_label_unescape(&p, label, sizeof(label)); - if (r <= 0) - return r; - if (r != 1) - return -EINVAL; - x = unhexchar(label[0]); - if (x < 0) - return -EINVAL; - - r = dns_label_unescape(&p, label, sizeof(label)); - if (r <= 0) - return r; - if (r != 1) - return -EINVAL; - y = unhexchar(label[0]); - if (y < 0) - return -EINVAL; - - a.s6_addr[ELEMENTSOF(a.s6_addr) - i - 1] = (uint8_t) y << 4 | (uint8_t) x; - } - - r = dns_name_equal(p, "ip6.arpa"); - if (r <= 0) - return r; - - *family = AF_INET6; - address->in6 = a; - return 1; - } - - return 0; -} - -bool dns_name_is_root(const char *name) { - - assert(name); - - /* There are exactly two ways to encode the root domain name: - * as empty string, or with a single dot. */ - - return STR_IN_SET(name, "", "."); -} - -bool dns_name_is_single_label(const char *name) { - int r; - - assert(name); - - r = dns_name_parent(&name); - if (r <= 0) - return false; - - return dns_name_is_root(name); -} - -/* Encode a domain name according to RFC 1035 Section 3.1, without compression */ -int dns_name_to_wire_format(const char *domain, uint8_t *buffer, size_t len, bool canonical) { - uint8_t *label_length, *out; - int r; - - assert(domain); - assert(buffer); - - out = buffer; - - do { - /* Reserve a byte for label length */ - if (len <= 0) - return -ENOBUFS; - len--; - label_length = out; - out++; - - /* Convert and copy a single label. Note that - * dns_label_unescape() returns 0 when it hits the end - * of the domain name, which we rely on here to encode - * the trailing NUL byte. */ - r = dns_label_unescape(&domain, (char *) out, len); - if (r < 0) - return r; - - /* Optionally, output the name in DNSSEC canonical - * format, as described in RFC 4034, section 6.2. Or - * in other words: in lower-case. */ - if (canonical) - ascii_strlower_n((char*) out, (size_t) r); - - /* Fill label length, move forward */ - *label_length = r; - out += r; - len -= r; - - } while (r != 0); - - /* Verify the maximum size of the encoded name. The trailing - * dot + NUL byte account are included this time, hence - * compare against DNS_HOSTNAME_MAX + 2 (which is 255) this - * time. */ - if (out - buffer > DNS_HOSTNAME_MAX + 2) - return -EINVAL; - - return out - buffer; -} - -static bool srv_type_label_is_valid(const char *label, size_t n) { - size_t k; - - assert(label); - - if (n < 2) /* Label needs to be at least 2 chars long */ - return false; - - if (label[0] != '_') /* First label char needs to be underscore */ - return false; - - /* Second char must be a letter */ - if (!(label[1] >= 'A' && label[1] <= 'Z') && - !(label[1] >= 'a' && label[1] <= 'z')) - return false; - - /* Third and further chars must be alphanumeric or a hyphen */ - for (k = 2; k < n; k++) { - if (!(label[k] >= 'A' && label[k] <= 'Z') && - !(label[k] >= 'a' && label[k] <= 'z') && - !(label[k] >= '0' && label[k] <= '9') && - label[k] != '-') - return false; - } - - return true; -} - -bool dns_srv_type_is_valid(const char *name) { - unsigned c = 0; - int r; - - if (!name) - return false; - - for (;;) { - char label[DNS_LABEL_MAX]; - - /* This more or less implements RFC 6335, Section 5.1 */ - - r = dns_label_unescape(&name, label, sizeof(label)); - if (r < 0) - return false; - if (r == 0) - break; - - if (c >= 2) - return false; - - if (!srv_type_label_is_valid(label, r)) - return false; - - c++; - } - - return c == 2; /* exactly two labels */ -} - -bool dns_service_name_is_valid(const char *name) { - size_t l; - - /* This more or less implements RFC 6763, Section 4.1.1 */ - - if (!name) - return false; - - if (!utf8_is_valid(name)) - return false; - - if (string_has_cc(name, NULL)) - return false; - - l = strlen(name); - if (l <= 0) - return false; - if (l > 63) - return false; - - return true; -} - -int dns_service_join(const char *name, const char *type, const char *domain, char **ret) { - char escaped[DNS_LABEL_ESCAPED_MAX]; - _cleanup_free_ char *n = NULL; - int r; - - assert(type); - assert(domain); - assert(ret); - - if (!dns_srv_type_is_valid(type)) - return -EINVAL; - - if (!name) - return dns_name_concat(type, domain, ret); - - if (!dns_service_name_is_valid(name)) - return -EINVAL; - - r = dns_label_escape(name, strlen(name), escaped, sizeof(escaped)); - if (r < 0) - return r; - - r = dns_name_concat(type, domain, &n); - if (r < 0) - return r; - - return dns_name_concat(escaped, n, ret); -} - -static bool dns_service_name_label_is_valid(const char *label, size_t n) { - char *s; - - assert(label); - - if (memchr(label, 0, n)) - return false; - - s = strndupa(label, n); - return dns_service_name_is_valid(s); -} - -int dns_service_split(const char *joined, char **_name, char **_type, char **_domain) { - _cleanup_free_ char *name = NULL, *type = NULL, *domain = NULL; - const char *p = joined, *q = NULL, *d = NULL; - char a[DNS_LABEL_MAX], b[DNS_LABEL_MAX], c[DNS_LABEL_MAX]; - int an, bn, cn, r; - unsigned x = 0; - - assert(joined); - - /* Get first label from the full name */ - an = dns_label_unescape(&p, a, sizeof(a)); - if (an < 0) - return an; - - if (an > 0) { - x++; - - /* If there was a first label, try to get the second one */ - bn = dns_label_unescape(&p, b, sizeof(b)); - if (bn < 0) - return bn; - - if (bn > 0) { - x++; - - /* If there was a second label, try to get the third one */ - q = p; - cn = dns_label_unescape(&p, c, sizeof(c)); - if (cn < 0) - return cn; - - if (cn > 0) - x++; - } else - cn = 0; - } else - an = 0; - - if (x >= 2 && srv_type_label_is_valid(b, bn)) { - - if (x >= 3 && srv_type_label_is_valid(c, cn)) { - - if (dns_service_name_label_is_valid(a, an)) { - /* OK, got <name> . <type> . <type2> . <domain> */ - - name = strndup(a, an); - if (!name) - return -ENOMEM; - - type = strjoin(b, ".", c, NULL); - if (!type) - return -ENOMEM; - - d = p; - goto finish; - } - - } else if (srv_type_label_is_valid(a, an)) { - - /* OK, got <type> . <type2> . <domain> */ - - name = NULL; - - type = strjoin(a, ".", b, NULL); - if (!type) - return -ENOMEM; - - d = q; - goto finish; - } - } - - name = NULL; - type = NULL; - d = joined; - -finish: - r = dns_name_normalize(d, &domain); - if (r < 0) - return r; - - if (_domain) { - *_domain = domain; - domain = NULL; - } - - if (_type) { - *_type = type; - type = NULL; - } - - if (_name) { - *_name = name; - name = NULL; - } - - return 0; -} - -static int dns_name_build_suffix_table(const char *name, const char*table[]) { - const char *p; - unsigned n = 0; - int r; - - assert(name); - assert(table); - - p = name; - for (;;) { - if (n > DNS_N_LABELS_MAX) - return -EINVAL; - - table[n] = p; - r = dns_name_parent(&p); - if (r < 0) - return r; - if (r == 0) - break; - - n++; - } - - return (int) n; -} - -int dns_name_suffix(const char *name, unsigned n_labels, const char **ret) { - const char* labels[DNS_N_LABELS_MAX+1]; - int n; - - assert(name); - assert(ret); - - n = dns_name_build_suffix_table(name, labels); - if (n < 0) - return n; - - if ((unsigned) n < n_labels) - return -EINVAL; - - *ret = labels[n - n_labels]; - return (int) (n - n_labels); -} - -int dns_name_skip(const char *a, unsigned n_labels, const char **ret) { - int r; - - assert(a); - assert(ret); - - for (; n_labels > 0; n_labels--) { - r = dns_name_parent(&a); - if (r < 0) - return r; - if (r == 0) { - *ret = ""; - return 0; - } - } - - *ret = a; - return 1; -} - -int dns_name_count_labels(const char *name) { - unsigned n = 0; - const char *p; - int r; - - assert(name); - - p = name; - for (;;) { - r = dns_name_parent(&p); - if (r < 0) - return r; - if (r == 0) - break; - - if (n >= DNS_N_LABELS_MAX) - return -EINVAL; - - n++; - } - - return (int) n; -} - -int dns_name_equal_skip(const char *a, unsigned n_labels, const char *b) { - int r; - - assert(a); - assert(b); - - r = dns_name_skip(a, n_labels, &a); - if (r <= 0) - return r; - - return dns_name_equal(a, b); -} - -int dns_name_common_suffix(const char *a, const char *b, const char **ret) { - const char *a_labels[DNS_N_LABELS_MAX+1], *b_labels[DNS_N_LABELS_MAX+1]; - int n = 0, m = 0, k = 0, r, q; - - assert(a); - assert(b); - assert(ret); - - /* Determines the common suffix of domain names a and b */ - - n = dns_name_build_suffix_table(a, a_labels); - if (n < 0) - return n; - - m = dns_name_build_suffix_table(b, b_labels); - if (m < 0) - return m; - - for (;;) { - char la[DNS_LABEL_MAX], lb[DNS_LABEL_MAX]; - const char *x, *y; - - if (k >= n || k >= m) { - *ret = a_labels[n - k]; - return 0; - } - - x = a_labels[n - 1 - k]; - r = dns_label_unescape(&x, la, sizeof(la)); - if (r < 0) - return r; - - y = b_labels[m - 1 - k]; - q = dns_label_unescape(&y, lb, sizeof(lb)); - if (q < 0) - return q; - - if (r != q || ascii_strcasecmp_n(la, lb, r) != 0) { - *ret = a_labels[n - k]; - return 0; - } - - k++; - } -} - -int dns_name_apply_idna(const char *name, char **ret) { - _cleanup_free_ char *buf = NULL; - size_t n = 0, allocated = 0; - bool first = true; - int r, q; - - assert(name); - assert(ret); - - for (;;) { - char label[DNS_LABEL_MAX]; - - r = dns_label_unescape(&name, label, sizeof(label)); - if (r < 0) - return r; - if (r == 0) - break; - - q = dns_label_apply_idna(label, r, label, sizeof(label)); - if (q < 0) - return q; - if (q > 0) - r = q; - - if (!GREEDY_REALLOC(buf, allocated, n + !first + DNS_LABEL_ESCAPED_MAX)) - return -ENOMEM; - - r = dns_label_escape(label, r, buf + n + !first, DNS_LABEL_ESCAPED_MAX); - if (r < 0) - return r; - - if (first) - first = false; - else - buf[n++] = '.'; - - n +=r; - } - - if (n > DNS_HOSTNAME_MAX) - return -EINVAL; - - if (!GREEDY_REALLOC(buf, allocated, n + 1)) - return -ENOMEM; - - buf[n] = 0; - *ret = buf; - buf = NULL; - - return (int) n; -} diff --git a/src/shared/dns-domain.h b/src/shared/dns-domain.h deleted file mode 100644 index af780f0b8b..0000000000 --- a/src/shared/dns-domain.h +++ /dev/null @@ -1,109 +0,0 @@ -#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 <errno.h> -#include <stdbool.h> -#include <stddef.h> -#include <stdint.h> - -#include "hashmap.h" -#include "in-addr-util.h" - -/* Length of a single label, with all escaping removed, excluding any trailing dot or NUL byte */ -#define DNS_LABEL_MAX 63 - -/* Worst case length of a single label, with all escaping applied and room for a trailing NUL byte. */ -#define DNS_LABEL_ESCAPED_MAX (DNS_LABEL_MAX*4+1) - -/* Maximum length of a full hostname, consisting of a series of unescaped labels, and no trailing dot or NUL byte */ -#define DNS_HOSTNAME_MAX 253 - -/* Maximum length of a full hostname, on the wire, including the final NUL byte */ -#define DNS_WIRE_FOMAT_HOSTNAME_MAX 255 - -/* Maximum number of labels per valid hostname */ -#define DNS_N_LABELS_MAX 127 - -int dns_label_unescape(const char **name, char *dest, size_t sz); -int dns_label_unescape_suffix(const char *name, const char **label_end, char *dest, size_t sz); -int dns_label_escape(const char *p, size_t l, char *dest, size_t sz); -int dns_label_escape_new(const char *p, size_t l, char **ret); - -static inline int dns_name_parent(const char **name) { - return dns_label_unescape(name, NULL, DNS_LABEL_MAX); -} - -int dns_label_apply_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max); -int dns_label_undo_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max); - -int dns_name_concat(const char *a, const char *b, char **ret); - -static inline int dns_name_normalize(const char *s, char **ret) { - /* dns_name_concat() normalizes as a side-effect */ - return dns_name_concat(s, NULL, ret); -} - -static inline int dns_name_is_valid(const char *s) { - int r; - - /* dns_name_normalize() verifies as a side effect */ - r = dns_name_normalize(s, NULL); - if (r == -EINVAL) - return 0; - if (r < 0) - return r; - return 1; -} - -void dns_name_hash_func(const void *s, struct siphash *state); -int dns_name_compare_func(const void *a, const void *b); -extern const struct hash_ops dns_name_hash_ops; - -int dns_name_between(const char *a, const char *b, const char *c); -int dns_name_equal(const char *x, const char *y); -int dns_name_endswith(const char *name, const char *suffix); -int dns_name_startswith(const char *name, const char *prefix); - -int dns_name_change_suffix(const char *name, const char *old_suffix, const char *new_suffix, char **ret); - -int dns_name_reverse(int family, const union in_addr_union *a, char **ret); -int dns_name_address(const char *p, int *family, union in_addr_union *a); - -bool dns_name_is_root(const char *name); -bool dns_name_is_single_label(const char *name); - -int dns_name_to_wire_format(const char *domain, uint8_t *buffer, size_t len, bool canonical); - -bool dns_srv_type_is_valid(const char *name); -bool dns_service_name_is_valid(const char *name); - -int dns_service_join(const char *name, const char *type, const char *domain, char **ret); -int dns_service_split(const char *joined, char **name, char **type, char **domain); - -int dns_name_suffix(const char *name, unsigned n_labels, const char **ret); -int dns_name_count_labels(const char *name); - -int dns_name_skip(const char *a, unsigned n_labels, const char **ret); -int dns_name_equal_skip(const char *a, unsigned n_labels, const char *b); - -int dns_name_common_suffix(const char *a, const char *b, const char **ret); - -int dns_name_apply_idna(const char *name, char **ret); diff --git a/src/shared/dropin.c b/src/shared/dropin.c deleted file mode 100644 index b9cd952ac8..0000000000 --- a/src/shared/dropin.c +++ /dev/null @@ -1,251 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2014 Zbigniew Jędrzejewski-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 <dirent.h> -#include <errno.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> - -#include "alloc-util.h" -#include "conf-files.h" -#include "dropin.h" -#include "escape.h" -#include "fd-util.h" -#include "fileio-label.h" -#include "hashmap.h" -#include "log.h" -#include "macro.h" -#include "mkdir.h" -#include "path-util.h" -#include "set.h" -#include "string-util.h" -#include "strv.h" -#include "unit-name.h" - -int drop_in_file(const char *dir, const char *unit, unsigned level, - const char *name, char **_p, char **_q) { - - _cleanup_free_ char *b = NULL; - char *p, *q; - - char prefix[DECIMAL_STR_MAX(unsigned)]; - - assert(unit); - assert(name); - assert(_p); - assert(_q); - - sprintf(prefix, "%u", level); - - b = xescape(name, "/."); - if (!b) - return -ENOMEM; - - if (!filename_is_valid(b)) - return -EINVAL; - - p = strjoin(dir, "/", unit, ".d", NULL); - if (!p) - return -ENOMEM; - - q = strjoin(p, "/", prefix, "-", b, ".conf", NULL); - if (!q) { - free(p); - return -ENOMEM; - } - - *_p = p; - *_q = q; - return 0; -} - -int write_drop_in(const char *dir, const char *unit, unsigned level, - const char *name, const char *data) { - - _cleanup_free_ char *p = NULL, *q = NULL; - int r; - - assert(dir); - assert(unit); - assert(name); - assert(data); - - r = drop_in_file(dir, unit, level, name, &p, &q); - if (r < 0) - return r; - - (void) mkdir_p(p, 0755); - return write_string_file_atomic_label(q, data); -} - -int write_drop_in_format(const char *dir, const char *unit, unsigned level, - const char *name, const char *format, ...) { - _cleanup_free_ char *p = NULL; - va_list ap; - int r; - - assert(dir); - assert(unit); - assert(name); - assert(format); - - va_start(ap, format); - r = vasprintf(&p, format, ap); - va_end(ap); - - if (r < 0) - return -ENOMEM; - - return write_drop_in(dir, unit, level, name, p); -} - -static int iterate_dir( - const char *path, - UnitDependency dependency, - dependency_consumer_t consumer, - void *arg, - char ***strv) { - - _cleanup_closedir_ DIR *d = NULL; - int r; - - assert(path); - - /* The config directories are special, since the order of the - * drop-ins matters */ - if (dependency < 0) { - r = strv_extend(strv, path); - if (r < 0) - return log_oom(); - - return 0; - } - - assert(consumer); - - d = opendir(path); - if (!d) { - if (errno == ENOENT) - return 0; - - return log_error_errno(errno, "Failed to open directory %s: %m", path); - } - - for (;;) { - struct dirent *de; - _cleanup_free_ char *f = NULL; - - errno = 0; - de = readdir(d); - if (!de && errno > 0) - return log_error_errno(errno, "Failed to read directory %s: %m", path); - - if (!de) - break; - - if (hidden_or_backup_file(de->d_name)) - continue; - - f = strjoin(path, "/", de->d_name, NULL); - if (!f) - return log_oom(); - - r = consumer(dependency, de->d_name, f, arg); - if (r < 0) - return r; - } - - return 0; -} - -int unit_file_process_dir( - Set *unit_path_cache, - const char *unit_path, - const char *name, - const char *suffix, - UnitDependency dependency, - dependency_consumer_t consumer, - void *arg, - char ***strv) { - - _cleanup_free_ char *path = NULL; - int r; - - assert(unit_path); - assert(name); - assert(suffix); - - path = strjoin(unit_path, "/", name, suffix, NULL); - if (!path) - return log_oom(); - - if (!unit_path_cache || set_get(unit_path_cache, path)) - (void) iterate_dir(path, dependency, consumer, arg, strv); - - if (unit_name_is_valid(name, UNIT_NAME_INSTANCE)) { - _cleanup_free_ char *template = NULL, *p = NULL; - /* Also try the template dir */ - - r = unit_name_template(name, &template); - if (r < 0) - return log_error_errno(r, "Failed to generate template from unit name: %m"); - - p = strjoin(unit_path, "/", template, suffix, NULL); - if (!p) - return log_oom(); - - if (!unit_path_cache || set_get(unit_path_cache, p)) - (void) iterate_dir(p, dependency, consumer, arg, strv); - } - - return 0; -} - -int unit_file_find_dropin_paths( - char **lookup_path, - Set *unit_path_cache, - Set *names, - char ***paths) { - - _cleanup_strv_free_ char **strv = NULL, **ans = NULL; - Iterator i; - char *t; - int r; - - assert(paths); - - SET_FOREACH(t, names, i) { - char **p; - - STRV_FOREACH(p, lookup_path) - unit_file_process_dir(unit_path_cache, *p, t, ".d", _UNIT_DEPENDENCY_INVALID, NULL, NULL, &strv); - } - - if (strv_isempty(strv)) - return 0; - - r = conf_files_list_strv(&ans, ".conf", NULL, (const char**) strv); - if (r < 0) - return log_warning_errno(r, "Failed to get list of configuration files: %m"); - - *paths = ans; - ans = NULL; - return 1; -} diff --git a/src/shared/dropin.h b/src/shared/dropin.h deleted file mode 100644 index c1936f397b..0000000000 --- a/src/shared/dropin.h +++ /dev/null @@ -1,61 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2014 Zbigniew Jędrzejewski-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 "hashmap.h" -#include "macro.h" -#include "set.h" -#include "unit-name.h" - -int drop_in_file(const char *dir, const char *unit, unsigned level, - const char *name, char **_p, char **_q); - -int write_drop_in(const char *dir, const char *unit, unsigned level, - const char *name, const char *data); - -int write_drop_in_format(const char *dir, const char *unit, unsigned level, - const char *name, const char *format, ...) _printf_(5, 6); - -/** - * This callback will be called for each directory entry @entry, - * with @filepath being the full path to the entry. - * - * If return value is negative, loop will be aborted. - */ -typedef int (*dependency_consumer_t)(UnitDependency dependency, - const char *entry, - const char* filepath, - void *arg); - -int unit_file_process_dir( - Set * unit_path_cache, - const char *unit_path, - const char *name, - const char *suffix, - UnitDependency dependency, - dependency_consumer_t consumer, - void *arg, - char ***strv); - -int unit_file_find_dropin_paths( - char **lookup_path, - Set *unit_path_cache, - Set *names, - char ***paths); diff --git a/src/shared/efivars.c b/src/shared/efivars.c deleted file mode 100644 index 8631a5a5d9..0000000000 --- a/src/shared/efivars.c +++ /dev/null @@ -1,715 +0,0 @@ -/*** - 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 <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <limits.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <unistd.h> - -#include "sd-id128.h" - -#include "alloc-util.h" -#include "dirent-util.h" -#include "efivars.h" -#include "fd-util.h" -#include "io-util.h" -#include "macro.h" -#include "parse-util.h" -#include "stdio-util.h" -#include "time-util.h" -#include "utf8.h" -#include "util.h" -#include "virt.h" - -#ifdef ENABLE_EFI - -#define LOAD_OPTION_ACTIVE 0x00000001 -#define MEDIA_DEVICE_PATH 0x04 -#define MEDIA_HARDDRIVE_DP 0x01 -#define MEDIA_FILEPATH_DP 0x04 -#define SIGNATURE_TYPE_GUID 0x02 -#define MBR_TYPE_EFI_PARTITION_TABLE_HEADER 0x02 -#define END_DEVICE_PATH_TYPE 0x7f -#define END_ENTIRE_DEVICE_PATH_SUBTYPE 0xff -#define EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001 - -struct boot_option { - uint32_t attr; - uint16_t path_len; - uint16_t title[]; -} _packed_; - -struct drive_path { - uint32_t part_nr; - uint64_t part_start; - uint64_t part_size; - char signature[16]; - uint8_t mbr_type; - uint8_t signature_type; -} _packed_; - -struct device_path { - uint8_t type; - uint8_t sub_type; - uint16_t length; - union { - uint16_t path[0]; - struct drive_path drive; - }; -} _packed_; - -bool is_efi_boot(void) { - return access("/sys/firmware/efi", F_OK) >= 0; -} - -static int read_flag(const char *varname) { - int r; - _cleanup_free_ void *v = NULL; - size_t s; - uint8_t b; - - r = efi_get_variable(EFI_VENDOR_GLOBAL, varname, NULL, &v, &s); - if (r < 0) - return r; - - if (s != 1) - return -EINVAL; - - b = *(uint8_t *)v; - r = b > 0; - return r; -} - -bool is_efi_secure_boot(void) { - return read_flag("SecureBoot") > 0; -} - -bool is_efi_secure_boot_setup_mode(void) { - return read_flag("SetupMode") > 0; -} - -int efi_reboot_to_firmware_supported(void) { - int r; - size_t s; - uint64_t b; - _cleanup_free_ void *v = NULL; - - if (!is_efi_boot() || detect_container() > 0) - return -EOPNOTSUPP; - - r = efi_get_variable(EFI_VENDOR_GLOBAL, "OsIndicationsSupported", NULL, &v, &s); - if (r < 0) - return r; - else if (s != sizeof(uint64_t)) - return -EINVAL; - - b = *(uint64_t *)v; - b &= EFI_OS_INDICATIONS_BOOT_TO_FW_UI; - return b > 0 ? 0 : -EOPNOTSUPP; -} - -static int get_os_indications(uint64_t *os_indication) { - int r; - size_t s; - _cleanup_free_ void *v = NULL; - - r = efi_reboot_to_firmware_supported(); - if (r < 0) - return r; - - r = efi_get_variable(EFI_VENDOR_GLOBAL, "OsIndications", NULL, &v, &s); - if (r == -ENOENT) { - /* Some firmware implementations that do support - * OsIndications and report that with - * OsIndicationsSupported will remove the - * OsIndications variable when it is unset. Let's - * pretend it's 0 then, to hide this implementation - * detail. Note that this call will return -ENOENT - * then only if the support for OsIndications is - * missing entirely, as determined by - * efi_reboot_to_firmware_supported() above. */ - *os_indication = 0; - return 0; - } else if (r < 0) - return r; - else if (s != sizeof(uint64_t)) - return -EINVAL; - - *os_indication = *(uint64_t *)v; - return 0; -} - -int efi_get_reboot_to_firmware(void) { - int r; - uint64_t b; - - r = get_os_indications(&b); - if (r < 0) - return r; - - return !!(b & EFI_OS_INDICATIONS_BOOT_TO_FW_UI); -} - -int efi_set_reboot_to_firmware(bool value) { - int r; - uint64_t b, b_new; - - r = get_os_indications(&b); - if (r < 0) - return r; - - if (value) - b_new = b | EFI_OS_INDICATIONS_BOOT_TO_FW_UI; - else - b_new = b & ~EFI_OS_INDICATIONS_BOOT_TO_FW_UI; - - /* Avoid writing to efi vars store if we can due to firmware bugs. */ - if (b != b_new) - return efi_set_variable(EFI_VENDOR_GLOBAL, "OsIndications", &b_new, sizeof(uint64_t)); - - return 0; -} - -int efi_get_variable( - sd_id128_t vendor, - const char *name, - uint32_t *attribute, - void **value, - size_t *size) { - - _cleanup_close_ int fd = -1; - _cleanup_free_ char *p = NULL; - uint32_t a; - ssize_t n; - struct stat st; - _cleanup_free_ void *buf = NULL; - - assert(name); - assert(value); - assert(size); - - if (asprintf(&p, - "/sys/firmware/efi/efivars/%s-%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", - name, SD_ID128_FORMAT_VAL(vendor)) < 0) - return -ENOMEM; - - fd = open(p, O_RDONLY|O_NOCTTY|O_CLOEXEC); - if (fd < 0) - return -errno; - - if (fstat(fd, &st) < 0) - return -errno; - if (st.st_size < 4) - return -EIO; - if (st.st_size > 4*1024*1024 + 4) - return -E2BIG; - - n = read(fd, &a, sizeof(a)); - if (n < 0) - return -errno; - if (n != sizeof(a)) - return -EIO; - - buf = malloc(st.st_size - 4 + 2); - if (!buf) - return -ENOMEM; - - n = read(fd, buf, (size_t) st.st_size - 4); - if (n < 0) - return -errno; - if (n != (ssize_t) st.st_size - 4) - return -EIO; - - /* Always NUL terminate (2 bytes, to protect UTF-16) */ - ((char*) buf)[st.st_size - 4] = 0; - ((char*) buf)[st.st_size - 4 + 1] = 0; - - *value = buf; - buf = NULL; - *size = (size_t) st.st_size - 4; - - if (attribute) - *attribute = a; - - return 0; -} - -int efi_set_variable( - sd_id128_t vendor, - const char *name, - const void *value, - size_t size) { - - struct var { - uint32_t attr; - char buf[]; - } _packed_ * _cleanup_free_ buf = NULL; - _cleanup_free_ char *p = NULL; - _cleanup_close_ int fd = -1; - - assert(name); - - if (asprintf(&p, - "/sys/firmware/efi/efivars/%s-%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", - name, SD_ID128_FORMAT_VAL(vendor)) < 0) - return -ENOMEM; - - if (size == 0) { - if (unlink(p) < 0) - return -errno; - return 0; - } - - fd = open(p, O_WRONLY|O_CREAT|O_NOCTTY|O_CLOEXEC, 0644); - if (fd < 0) - return -errno; - - buf = malloc(sizeof(uint32_t) + size); - if (!buf) - return -ENOMEM; - - buf->attr = EFI_VARIABLE_NON_VOLATILE|EFI_VARIABLE_BOOTSERVICE_ACCESS|EFI_VARIABLE_RUNTIME_ACCESS; - memcpy(buf->buf, value, size); - - return loop_write(fd, buf, sizeof(uint32_t) + size, false); -} - -int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p) { - _cleanup_free_ void *s = NULL; - size_t ss = 0; - int r; - char *x; - - r = efi_get_variable(vendor, name, NULL, &s, &ss); - if (r < 0) - return r; - - x = utf16_to_utf8(s, ss); - if (!x) - return -ENOMEM; - - *p = x; - return 0; -} - -static size_t utf16_size(const uint16_t *s) { - size_t l = 0; - - while (s[l] > 0) - l++; - - return (l+1) * sizeof(uint16_t); -} - -static void efi_guid_to_id128(const void *guid, sd_id128_t *id128) { - struct uuid { - uint32_t u1; - uint16_t u2; - uint16_t u3; - uint8_t u4[8]; - } _packed_; - const struct uuid *uuid = guid; - - id128->bytes[0] = (uuid->u1 >> 24) & 0xff; - id128->bytes[1] = (uuid->u1 >> 16) & 0xff; - id128->bytes[2] = (uuid->u1 >> 8) & 0xff; - id128->bytes[3] = (uuid->u1) & 0xff; - id128->bytes[4] = (uuid->u2 >> 8) & 0xff; - id128->bytes[5] = (uuid->u2) & 0xff; - id128->bytes[6] = (uuid->u3 >> 8) & 0xff; - id128->bytes[7] = (uuid->u3) & 0xff; - memcpy(&id128->bytes[8], uuid->u4, sizeof(uuid->u4)); -} - -int efi_get_boot_option( - uint16_t id, - char **title, - sd_id128_t *part_uuid, - char **path, - bool *active) { - - char boot_id[9]; - _cleanup_free_ uint8_t *buf = NULL; - size_t l; - struct boot_option *header; - size_t title_size; - _cleanup_free_ char *s = NULL, *p = NULL; - sd_id128_t p_uuid = SD_ID128_NULL; - int r; - - xsprintf(boot_id, "Boot%04X", id); - r = efi_get_variable(EFI_VENDOR_GLOBAL, boot_id, NULL, (void **)&buf, &l); - if (r < 0) - return r; - if (l < sizeof(struct boot_option)) - return -ENOENT; - - header = (struct boot_option *)buf; - title_size = utf16_size(header->title); - if (title_size > l - offsetof(struct boot_option, title)) - return -EINVAL; - - if (title) { - s = utf16_to_utf8(header->title, title_size); - if (!s) - return -ENOMEM; - } - - if (header->path_len > 0) { - uint8_t *dbuf; - size_t dnext; - - dbuf = buf + offsetof(struct boot_option, title) + title_size; - dnext = 0; - while (dnext < header->path_len) { - struct device_path *dpath; - - dpath = (struct device_path *)(dbuf + dnext); - if (dpath->length < 4) - break; - - /* Type 0x7F – End of Hardware Device Path, Sub-Type 0xFF – End Entire Device Path */ - if (dpath->type == END_DEVICE_PATH_TYPE && dpath->sub_type == END_ENTIRE_DEVICE_PATH_SUBTYPE) - break; - - dnext += dpath->length; - - /* Type 0x04 – Media Device Path */ - if (dpath->type != MEDIA_DEVICE_PATH) - continue; - - /* Sub-Type 1 – Hard Drive */ - if (dpath->sub_type == MEDIA_HARDDRIVE_DP) { - /* 0x02 – GUID Partition Table */ - if (dpath->drive.mbr_type != MBR_TYPE_EFI_PARTITION_TABLE_HEADER) - continue; - - /* 0x02 – GUID signature */ - if (dpath->drive.signature_type != SIGNATURE_TYPE_GUID) - continue; - - if (part_uuid) - efi_guid_to_id128(dpath->drive.signature, &p_uuid); - continue; - } - - /* Sub-Type 4 – File Path */ - if (dpath->sub_type == MEDIA_FILEPATH_DP && !p && path) { - p = utf16_to_utf8(dpath->path, dpath->length-4); - efi_tilt_backslashes(p); - continue; - } - } - } - - if (title) { - *title = s; - s = NULL; - } - if (part_uuid) - *part_uuid = p_uuid; - if (path) { - *path = p; - p = NULL; - } - if (active) - *active = !!(header->attr & LOAD_OPTION_ACTIVE); - - return 0; -} - -static void to_utf16(uint16_t *dest, const char *src) { - int i; - - for (i = 0; src[i] != '\0'; i++) - dest[i] = src[i]; - dest[i] = '\0'; -} - -struct guid { - uint32_t u1; - uint16_t u2; - uint16_t u3; - uint8_t u4[8]; -} _packed_; - -static void id128_to_efi_guid(sd_id128_t id, void *guid) { - struct guid *uuid = guid; - - uuid->u1 = id.bytes[0] << 24 | id.bytes[1] << 16 | id.bytes[2] << 8 | id.bytes[3]; - uuid->u2 = id.bytes[4] << 8 | id.bytes[5]; - uuid->u3 = id.bytes[6] << 8 | id.bytes[7]; - memcpy(uuid->u4, id.bytes+8, sizeof(uuid->u4)); -} - -static uint16_t *tilt_slashes(uint16_t *s) { - uint16_t *p; - - for (p = s; *p; p++) - if (*p == '/') - *p = '\\'; - - return s; -} - -int efi_add_boot_option(uint16_t id, const char *title, - uint32_t part, uint64_t pstart, uint64_t psize, - sd_id128_t part_uuid, const char *path) { - char boot_id[9]; - size_t size; - size_t title_len; - size_t path_len; - struct boot_option *option; - struct device_path *devicep; - _cleanup_free_ char *buf = NULL; - - title_len = (strlen(title)+1) * 2; - path_len = (strlen(path)+1) * 2; - - buf = calloc(sizeof(struct boot_option) + title_len + - sizeof(struct drive_path) + - sizeof(struct device_path) + path_len, 1); - if (!buf) - return -ENOMEM; - - /* header */ - option = (struct boot_option *)buf; - option->attr = LOAD_OPTION_ACTIVE; - option->path_len = offsetof(struct device_path, drive) + sizeof(struct drive_path) + - offsetof(struct device_path, path) + path_len + - offsetof(struct device_path, path); - to_utf16(option->title, title); - size = offsetof(struct boot_option, title) + title_len; - - /* partition info */ - devicep = (struct device_path *)(buf + size); - devicep->type = MEDIA_DEVICE_PATH; - devicep->sub_type = MEDIA_HARDDRIVE_DP; - devicep->length = offsetof(struct device_path, drive) + sizeof(struct drive_path); - devicep->drive.part_nr = part; - devicep->drive.part_start = pstart; - devicep->drive.part_size = psize; - devicep->drive.signature_type = SIGNATURE_TYPE_GUID; - devicep->drive.mbr_type = MBR_TYPE_EFI_PARTITION_TABLE_HEADER; - id128_to_efi_guid(part_uuid, devicep->drive.signature); - size += devicep->length; - - /* path to loader */ - devicep = (struct device_path *)(buf + size); - devicep->type = MEDIA_DEVICE_PATH; - devicep->sub_type = MEDIA_FILEPATH_DP; - devicep->length = offsetof(struct device_path, path) + path_len; - to_utf16(devicep->path, path); - tilt_slashes(devicep->path); - size += devicep->length; - - /* end of path */ - devicep = (struct device_path *)(buf + size); - devicep->type = END_DEVICE_PATH_TYPE; - devicep->sub_type = END_ENTIRE_DEVICE_PATH_SUBTYPE; - devicep->length = offsetof(struct device_path, path); - size += devicep->length; - - xsprintf(boot_id, "Boot%04X", id); - return efi_set_variable(EFI_VENDOR_GLOBAL, boot_id, buf, size); -} - -int efi_remove_boot_option(uint16_t id) { - char boot_id[9]; - - xsprintf(boot_id, "Boot%04X", id); - return efi_set_variable(EFI_VENDOR_GLOBAL, boot_id, NULL, 0); -} - -int efi_get_boot_order(uint16_t **order) { - _cleanup_free_ void *buf = NULL; - size_t l; - int r; - - r = efi_get_variable(EFI_VENDOR_GLOBAL, "BootOrder", NULL, &buf, &l); - if (r < 0) - return r; - - if (l <= 0) - return -ENOENT; - - if (l % sizeof(uint16_t) > 0 || - l / sizeof(uint16_t) > INT_MAX) - return -EINVAL; - - *order = buf; - buf = NULL; - return (int) (l / sizeof(uint16_t)); -} - -int efi_set_boot_order(uint16_t *order, size_t n) { - return efi_set_variable(EFI_VENDOR_GLOBAL, "BootOrder", order, n * sizeof(uint16_t)); -} - -static int boot_id_hex(const char s[4]) { - int i; - int id = 0; - - for (i = 0; i < 4; i++) - if (s[i] >= '0' && s[i] <= '9') - id |= (s[i] - '0') << (3 - i) * 4; - else if (s[i] >= 'A' && s[i] <= 'F') - id |= (s[i] - 'A' + 10) << (3 - i) * 4; - else - return -EINVAL; - - return id; -} - -static int cmp_uint16(const void *_a, const void *_b) { - const uint16_t *a = _a, *b = _b; - - return (int)*a - (int)*b; -} - -int efi_get_boot_options(uint16_t **options) { - _cleanup_closedir_ DIR *dir = NULL; - struct dirent *de; - _cleanup_free_ uint16_t *list = NULL; - size_t alloc = 0; - int count = 0; - - assert(options); - - dir = opendir("/sys/firmware/efi/efivars/"); - if (!dir) - return -errno; - - FOREACH_DIRENT(de, dir, return -errno) { - int id; - - if (strncmp(de->d_name, "Boot", 4) != 0) - continue; - - if (strlen(de->d_name) != 45) - continue; - - if (strcmp(de->d_name + 8, "-8be4df61-93ca-11d2-aa0d-00e098032b8c") != 0) - continue; - - id = boot_id_hex(de->d_name + 4); - if (id < 0) - continue; - - if (!GREEDY_REALLOC(list, alloc, count + 1)) - return -ENOMEM; - - list[count++] = id; - } - - qsort_safe(list, count, sizeof(uint16_t), cmp_uint16); - - *options = list; - list = NULL; - return count; -} - -static int read_usec(sd_id128_t vendor, const char *name, usec_t *u) { - _cleanup_free_ char *j = NULL; - int r; - uint64_t x = 0; - - assert(name); - assert(u); - - r = efi_get_variable_string(EFI_VENDOR_LOADER, name, &j); - if (r < 0) - return r; - - r = safe_atou64(j, &x); - if (r < 0) - return r; - - *u = x; - return 0; -} - -int efi_loader_get_boot_usec(usec_t *firmware, usec_t *loader) { - uint64_t x, y; - int r; - - assert(firmware); - assert(loader); - - r = read_usec(EFI_VENDOR_LOADER, "LoaderTimeInitUSec", &x); - if (r < 0) - return r; - - r = read_usec(EFI_VENDOR_LOADER, "LoaderTimeExecUSec", &y); - if (r < 0) - return r; - - if (y == 0 || y < x) - return -EIO; - - if (y > USEC_PER_HOUR) - return -EIO; - - *firmware = x; - *loader = y; - - return 0; -} - -int efi_loader_get_device_part_uuid(sd_id128_t *u) { - _cleanup_free_ char *p = NULL; - int r, parsed[16]; - - r = efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderDevicePartUUID", &p); - if (r < 0) - return r; - - if (sscanf(p, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", - &parsed[0], &parsed[1], &parsed[2], &parsed[3], - &parsed[4], &parsed[5], &parsed[6], &parsed[7], - &parsed[8], &parsed[9], &parsed[10], &parsed[11], - &parsed[12], &parsed[13], &parsed[14], &parsed[15]) != 16) - return -EIO; - - if (u) { - unsigned i; - - for (i = 0; i < ELEMENTSOF(parsed); i++) - u->bytes[i] = parsed[i]; - } - - return 0; -} - -#endif - -char *efi_tilt_backslashes(char *s) { - char *p; - - for (p = s; *p; p++) - if (*p == '\\') - *p = '/'; - - return s; -} diff --git a/src/shared/efivars.h b/src/shared/efivars.h deleted file mode 100644 index b61d14c4ec..0000000000 --- a/src/shared/efivars.h +++ /dev/null @@ -1,131 +0,0 @@ -#pragma once - -/*** - 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 <stdbool.h> -#include <stddef.h> -#include <stdint.h> - -#include "sd-id128.h" - -#include "time-util.h" - -#define EFI_VENDOR_LOADER SD_ID128_MAKE(4a,67,b0,82,0a,4c,41,cf,b6,c7,44,0b,29,bb,8c,4f) -#define EFI_VENDOR_GLOBAL SD_ID128_MAKE(8b,e4,df,61,93,ca,11,d2,aa,0d,00,e0,98,03,2b,8c) -#define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 -#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 -#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 - -#ifdef ENABLE_EFI - -bool is_efi_boot(void); -bool is_efi_secure_boot(void); -bool is_efi_secure_boot_setup_mode(void); -int efi_reboot_to_firmware_supported(void); -int efi_get_reboot_to_firmware(void); -int efi_set_reboot_to_firmware(bool value); - -int efi_get_variable(sd_id128_t vendor, const char *name, uint32_t *attribute, void **value, size_t *size); -int efi_set_variable(sd_id128_t vendor, const char *name, const void *value, size_t size); -int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p); - -int efi_get_boot_option(uint16_t nr, char **title, sd_id128_t *part_uuid, char **path, bool *active); -int efi_add_boot_option(uint16_t id, const char *title, uint32_t part, uint64_t pstart, uint64_t psize, sd_id128_t part_uuid, const char *path); -int efi_remove_boot_option(uint16_t id); -int efi_get_boot_order(uint16_t **order); -int efi_set_boot_order(uint16_t *order, size_t n); -int efi_get_boot_options(uint16_t **options); - -int efi_loader_get_device_part_uuid(sd_id128_t *u); -int efi_loader_get_boot_usec(usec_t *firmware, usec_t *loader); - -#else - -static inline bool is_efi_boot(void) { - return false; -} - -static inline bool is_efi_secure_boot(void) { - return false; -} - -static inline bool is_efi_secure_boot_setup_mode(void) { - return false; -} - -static inline int efi_reboot_to_firmware_supported(void) { - return -EOPNOTSUPP; -} - -static inline int efi_get_reboot_to_firmware(void) { - return -EOPNOTSUPP; -} - -static inline int efi_set_reboot_to_firmware(bool value) { - return -EOPNOTSUPP; -} - -static inline int efi_get_variable(sd_id128_t vendor, const char *name, uint32_t *attribute, void **value, size_t *size) { - return -EOPNOTSUPP; -} - -static inline int efi_set_variable(sd_id128_t vendor, const char *name, const void *value, size_t size) { - return -EOPNOTSUPP; -} - -static inline int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p) { - return -EOPNOTSUPP; -} - -static inline int efi_get_boot_option(uint16_t nr, char **title, sd_id128_t *part_uuid, char **path, bool *active) { - return -EOPNOTSUPP; -} - -static inline int efi_add_boot_option(uint16_t id, const char *title, uint32_t part, uint64_t pstart, uint64_t psize, sd_id128_t part_uuid, const char *path) { - return -EOPNOTSUPP; -} - -static inline int efi_remove_boot_option(uint16_t id) { - return -EOPNOTSUPP; -} - -static inline int efi_get_boot_order(uint16_t **order) { - return -EOPNOTSUPP; -} - -static inline int efi_set_boot_order(uint16_t *order, size_t n) { - return -EOPNOTSUPP; -} - -static inline int efi_get_boot_options(uint16_t **options) { - return -EOPNOTSUPP; -} - -static inline int efi_loader_get_device_part_uuid(sd_id128_t *u) { - return -EOPNOTSUPP; -} - -static inline int efi_loader_get_boot_usec(usec_t *firmware, usec_t *loader) { - return -EOPNOTSUPP; -} - -#endif - -char *efi_tilt_backslashes(char *s); diff --git a/src/shared/fdset.c b/src/shared/fdset.c deleted file mode 100644 index 527f27bc67..0000000000 --- a/src/shared/fdset.c +++ /dev/null @@ -1,273 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <alloca.h> -#include <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <stddef.h> - -#include "sd-daemon.h" - -#include "fd-util.h" -#include "fdset.h" -#include "log.h" -#include "macro.h" -#include "parse-util.h" -#include "path-util.h" -#include "set.h" - -#define MAKE_SET(s) ((Set*) s) -#define MAKE_FDSET(s) ((FDSet*) s) - -FDSet *fdset_new(void) { - return MAKE_FDSET(set_new(NULL)); -} - -int fdset_new_array(FDSet **ret, const int *fds, unsigned n_fds) { - unsigned i; - FDSet *s; - int r; - - assert(ret); - - s = fdset_new(); - if (!s) - return -ENOMEM; - - for (i = 0; i < n_fds; i++) { - - r = fdset_put(s, fds[i]); - if (r < 0) { - set_free(MAKE_SET(s)); - return r; - } - } - - *ret = s; - return 0; -} - -FDSet* fdset_free(FDSet *s) { - void *p; - - while ((p = set_steal_first(MAKE_SET(s)))) { - /* Valgrind's fd might have ended up in this set here, - * due to fdset_new_fill(). We'll ignore all failures - * here, so that the EBADFD that valgrind will return - * us on close() doesn't influence us */ - - /* When reloading duplicates of the private bus - * connection fds and suchlike are closed here, which - * has no effect at all, since they are only - * duplicates. So don't be surprised about these log - * messages. */ - - log_debug("Closing left-over fd %i", PTR_TO_FD(p)); - close_nointr(PTR_TO_FD(p)); - } - - set_free(MAKE_SET(s)); - return NULL; -} - -int fdset_put(FDSet *s, int fd) { - assert(s); - assert(fd >= 0); - - return set_put(MAKE_SET(s), FD_TO_PTR(fd)); -} - -int fdset_put_dup(FDSet *s, int fd) { - int copy, r; - - assert(s); - assert(fd >= 0); - - copy = fcntl(fd, F_DUPFD_CLOEXEC, 3); - if (copy < 0) - return -errno; - - r = fdset_put(s, copy); - if (r < 0) { - safe_close(copy); - return r; - } - - return copy; -} - -bool fdset_contains(FDSet *s, int fd) { - assert(s); - assert(fd >= 0); - - return !!set_get(MAKE_SET(s), FD_TO_PTR(fd)); -} - -int fdset_remove(FDSet *s, int fd) { - assert(s); - assert(fd >= 0); - - return set_remove(MAKE_SET(s), FD_TO_PTR(fd)) ? fd : -ENOENT; -} - -int fdset_new_fill(FDSet **_s) { - _cleanup_closedir_ DIR *d = NULL; - struct dirent *de; - int r = 0; - FDSet *s; - - assert(_s); - - /* Creates an fdset and fills in all currently open file - * descriptors. */ - - d = opendir("/proc/self/fd"); - if (!d) - return -errno; - - s = fdset_new(); - if (!s) { - r = -ENOMEM; - goto finish; - } - - while ((de = readdir(d))) { - int fd = -1; - - if (hidden_or_backup_file(de->d_name)) - continue; - - r = safe_atoi(de->d_name, &fd); - if (r < 0) - goto finish; - - if (fd < 3) - continue; - - if (fd == dirfd(d)) - continue; - - r = fdset_put(s, fd); - if (r < 0) - goto finish; - } - - r = 0; - *_s = s; - s = NULL; - -finish: - /* We won't close the fds here! */ - if (s) - set_free(MAKE_SET(s)); - - return r; -} - -int fdset_cloexec(FDSet *fds, bool b) { - Iterator i; - void *p; - int r; - - assert(fds); - - SET_FOREACH(p, MAKE_SET(fds), i) { - r = fd_cloexec(PTR_TO_FD(p), b); - if (r < 0) - return r; - } - - return 0; -} - -int fdset_new_listen_fds(FDSet **_s, bool unset) { - int n, fd, r; - FDSet *s; - - assert(_s); - - /* Creates an fdset and fills in all passed file descriptors */ - - s = fdset_new(); - if (!s) { - r = -ENOMEM; - goto fail; - } - - n = sd_listen_fds(unset); - for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) { - r = fdset_put(s, fd); - if (r < 0) - goto fail; - } - - *_s = s; - return 0; - - -fail: - if (s) - set_free(MAKE_SET(s)); - - return r; -} - -int fdset_close_others(FDSet *fds) { - void *e; - Iterator i; - int *a; - unsigned j, m; - - j = 0, m = fdset_size(fds); - a = alloca(sizeof(int) * m); - SET_FOREACH(e, MAKE_SET(fds), i) - a[j++] = PTR_TO_FD(e); - - assert(j == m); - - return close_all_fds(a, j); -} - -unsigned fdset_size(FDSet *fds) { - return set_size(MAKE_SET(fds)); -} - -bool fdset_isempty(FDSet *fds) { - return set_isempty(MAKE_SET(fds)); -} - -int fdset_iterate(FDSet *s, Iterator *i) { - void *p; - - if (!set_iterate(MAKE_SET(s), i, &p)) - return -ENOENT; - - return PTR_TO_FD(p); -} - -int fdset_steal_first(FDSet *fds) { - void *p; - - p = set_steal_first(MAKE_SET(fds)); - if (!p) - return -ENOENT; - - return PTR_TO_FD(p); -} diff --git a/src/shared/fdset.h b/src/shared/fdset.h deleted file mode 100644 index 16efe5bdf2..0000000000 --- a/src/shared/fdset.h +++ /dev/null @@ -1,58 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 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 "hashmap.h" -#include "macro.h" -#include "set.h" - -typedef struct FDSet FDSet; - -FDSet* fdset_new(void); -FDSet* fdset_free(FDSet *s); - -int fdset_put(FDSet *s, int fd); -int fdset_put_dup(FDSet *s, int fd); - -bool fdset_contains(FDSet *s, int fd); -int fdset_remove(FDSet *s, int fd); - -int fdset_new_array(FDSet **ret, const int *fds, unsigned n_fds); -int fdset_new_fill(FDSet **ret); -int fdset_new_listen_fds(FDSet **ret, bool unset); - -int fdset_cloexec(FDSet *fds, bool b); - -int fdset_close_others(FDSet *fds); - -unsigned fdset_size(FDSet *fds); -bool fdset_isempty(FDSet *fds); - -int fdset_iterate(FDSet *s, Iterator *i); - -int fdset_steal_first(FDSet *fds); - -#define FDSET_FOREACH(fd, fds, i) \ - for ((i) = ITERATOR_FIRST, (fd) = fdset_iterate((fds), &(i)); (fd) >= 0; (fd) = fdset_iterate((fds), &(i))) - -DEFINE_TRIVIAL_CLEANUP_FUNC(FDSet*, fdset_free); -#define _cleanup_fdset_free_ _cleanup_(fdset_freep) diff --git a/src/shared/firewall-util.c b/src/shared/firewall-util.c deleted file mode 100644 index f73108eaa3..0000000000 --- a/src/shared/firewall-util.c +++ /dev/null @@ -1,357 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2015 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/>. -***/ - -#warning "Temporary work-around for broken glibc vs. linux kernel header definitions" -#warning "This really should be removed sooner rather than later, when this is fixed upstream" -#define _NET_IF_H 1 - -#include <alloca.h> -#include <arpa/inet.h> -#include <endian.h> -#include <errno.h> -#include <stddef.h> -#include <string.h> -#include <sys/socket.h> -#include <net/if.h> -#ifndef IFNAMSIZ -#define IFNAMSIZ 16 -#endif -#include <linux/if.h> -#include <linux/netfilter_ipv4/ip_tables.h> -#include <linux/netfilter/nf_nat.h> -#include <linux/netfilter/xt_addrtype.h> -#include <libiptc/libiptc.h> - -#include "alloc-util.h" -#include "firewall-util.h" -#include "in-addr-util.h" -#include "macro.h" -#include "socket-util.h" - -DEFINE_TRIVIAL_CLEANUP_FUNC(struct xtc_handle*, iptc_free); - -static int entry_fill_basics( - struct ipt_entry *entry, - int protocol, - const char *in_interface, - const union in_addr_union *source, - unsigned source_prefixlen, - const char *out_interface, - const union in_addr_union *destination, - unsigned destination_prefixlen) { - - assert(entry); - - if (out_interface && !ifname_valid(out_interface)) - return -EINVAL; - if (in_interface && !ifname_valid(in_interface)) - return -EINVAL; - - entry->ip.proto = protocol; - - if (in_interface) { - strcpy(entry->ip.iniface, in_interface); - memset(entry->ip.iniface_mask, 0xFF, strlen(in_interface)+1); - } - if (source) { - entry->ip.src = source->in; - in_addr_prefixlen_to_netmask(&entry->ip.smsk, source_prefixlen); - } - - if (out_interface) { - strcpy(entry->ip.outiface, out_interface); - memset(entry->ip.outiface_mask, 0xFF, strlen(out_interface)+1); - } - if (destination) { - entry->ip.dst = destination->in; - in_addr_prefixlen_to_netmask(&entry->ip.dmsk, destination_prefixlen); - } - - return 0; -} - -int fw_add_masquerade( - bool add, - int af, - int protocol, - const union in_addr_union *source, - unsigned source_prefixlen, - const char *out_interface, - const union in_addr_union *destination, - unsigned destination_prefixlen) { - - _cleanup_(iptc_freep) struct xtc_handle *h = NULL; - struct ipt_entry *entry, *mask; - struct ipt_entry_target *t; - size_t sz; - struct nf_nat_ipv4_multi_range_compat *mr; - int r; - - if (af != AF_INET) - return -EOPNOTSUPP; - - if (protocol != 0 && protocol != IPPROTO_TCP && protocol != IPPROTO_UDP) - return -EOPNOTSUPP; - - h = iptc_init("nat"); - if (!h) - return -errno; - - sz = XT_ALIGN(sizeof(struct ipt_entry)) + - XT_ALIGN(sizeof(struct ipt_entry_target)) + - XT_ALIGN(sizeof(struct nf_nat_ipv4_multi_range_compat)); - - /* Put together the entry we want to add or remove */ - entry = alloca0(sz); - entry->next_offset = sz; - entry->target_offset = XT_ALIGN(sizeof(struct ipt_entry)); - r = entry_fill_basics(entry, protocol, NULL, source, source_prefixlen, out_interface, destination, destination_prefixlen); - if (r < 0) - return r; - - /* Fill in target part */ - t = ipt_get_target(entry); - t->u.target_size = - XT_ALIGN(sizeof(struct ipt_entry_target)) + - XT_ALIGN(sizeof(struct nf_nat_ipv4_multi_range_compat)); - strncpy(t->u.user.name, "MASQUERADE", sizeof(t->u.user.name)); - mr = (struct nf_nat_ipv4_multi_range_compat*) t->data; - mr->rangesize = 1; - - /* Create a search mask entry */ - mask = alloca(sz); - memset(mask, 0xFF, sz); - - if (add) { - if (iptc_check_entry("POSTROUTING", entry, (unsigned char*) mask, h)) - return 0; - if (errno != ENOENT) /* if other error than not existing yet, fail */ - return -errno; - - if (!iptc_insert_entry("POSTROUTING", entry, 0, h)) - return -errno; - } else { - if (!iptc_delete_entry("POSTROUTING", entry, (unsigned char*) mask, h)) { - if (errno == ENOENT) /* if it's already gone, all is good! */ - return 0; - - return -errno; - } - } - - if (!iptc_commit(h)) - return -errno; - - return 0; -} - -int fw_add_local_dnat( - bool add, - int af, - int protocol, - const char *in_interface, - const union in_addr_union *source, - unsigned source_prefixlen, - const union in_addr_union *destination, - unsigned destination_prefixlen, - uint16_t local_port, - const union in_addr_union *remote, - uint16_t remote_port, - const union in_addr_union *previous_remote) { - - - _cleanup_(iptc_freep) struct xtc_handle *h = NULL; - struct ipt_entry *entry, *mask; - struct ipt_entry_target *t; - struct ipt_entry_match *m; - struct xt_addrtype_info_v1 *at; - struct nf_nat_ipv4_multi_range_compat *mr; - size_t sz, msz; - int r; - - assert(add || !previous_remote); - - if (af != AF_INET) - return -EOPNOTSUPP; - - if (protocol != IPPROTO_TCP && protocol != IPPROTO_UDP) - return -EOPNOTSUPP; - - if (local_port <= 0) - return -EINVAL; - - if (remote_port <= 0) - return -EINVAL; - - h = iptc_init("nat"); - if (!h) - return -errno; - - sz = XT_ALIGN(sizeof(struct ipt_entry)) + - XT_ALIGN(sizeof(struct ipt_entry_match)) + - XT_ALIGN(sizeof(struct xt_addrtype_info_v1)) + - XT_ALIGN(sizeof(struct ipt_entry_target)) + - XT_ALIGN(sizeof(struct nf_nat_ipv4_multi_range_compat)); - - if (protocol == IPPROTO_TCP) - msz = XT_ALIGN(sizeof(struct ipt_entry_match)) + - XT_ALIGN(sizeof(struct xt_tcp)); - else - msz = XT_ALIGN(sizeof(struct ipt_entry_match)) + - XT_ALIGN(sizeof(struct xt_udp)); - - sz += msz; - - /* Fill in basic part */ - entry = alloca0(sz); - entry->next_offset = sz; - entry->target_offset = - XT_ALIGN(sizeof(struct ipt_entry)) + - XT_ALIGN(sizeof(struct ipt_entry_match)) + - XT_ALIGN(sizeof(struct xt_addrtype_info_v1)) + - msz; - r = entry_fill_basics(entry, protocol, in_interface, source, source_prefixlen, NULL, destination, destination_prefixlen); - if (r < 0) - return r; - - /* Fill in first match */ - m = (struct ipt_entry_match*) ((uint8_t*) entry + XT_ALIGN(sizeof(struct ipt_entry))); - m->u.match_size = msz; - if (protocol == IPPROTO_TCP) { - struct xt_tcp *tcp; - - strncpy(m->u.user.name, "tcp", sizeof(m->u.user.name)); - tcp = (struct xt_tcp*) m->data; - tcp->dpts[0] = tcp->dpts[1] = local_port; - tcp->spts[0] = 0; - tcp->spts[1] = 0xFFFF; - - } else { - struct xt_udp *udp; - - strncpy(m->u.user.name, "udp", sizeof(m->u.user.name)); - udp = (struct xt_udp*) m->data; - udp->dpts[0] = udp->dpts[1] = local_port; - udp->spts[0] = 0; - udp->spts[1] = 0xFFFF; - } - - /* Fill in second match */ - m = (struct ipt_entry_match*) ((uint8_t*) entry + XT_ALIGN(sizeof(struct ipt_entry)) + msz); - m->u.match_size = - XT_ALIGN(sizeof(struct ipt_entry_match)) + - XT_ALIGN(sizeof(struct xt_addrtype_info_v1)); - strncpy(m->u.user.name, "addrtype", sizeof(m->u.user.name)); - m->u.user.revision = 1; - at = (struct xt_addrtype_info_v1*) m->data; - at->dest = XT_ADDRTYPE_LOCAL; - - /* Fill in target part */ - t = ipt_get_target(entry); - t->u.target_size = - XT_ALIGN(sizeof(struct ipt_entry_target)) + - XT_ALIGN(sizeof(struct nf_nat_ipv4_multi_range_compat)); - strncpy(t->u.user.name, "DNAT", sizeof(t->u.user.name)); - mr = (struct nf_nat_ipv4_multi_range_compat*) t->data; - mr->rangesize = 1; - mr->range[0].flags = NF_NAT_RANGE_PROTO_SPECIFIED|NF_NAT_RANGE_MAP_IPS; - mr->range[0].min_ip = mr->range[0].max_ip = remote->in.s_addr; - if (protocol == IPPROTO_TCP) - mr->range[0].min.tcp.port = mr->range[0].max.tcp.port = htons(remote_port); - else - mr->range[0].min.udp.port = mr->range[0].max.udp.port = htons(remote_port); - - mask = alloca0(sz); - memset(mask, 0xFF, sz); - - if (add) { - /* Add the PREROUTING rule, if it is missing so far */ - if (!iptc_check_entry("PREROUTING", entry, (unsigned char*) mask, h)) { - if (errno != ENOENT) - return -EINVAL; - - if (!iptc_insert_entry("PREROUTING", entry, 0, h)) - return -errno; - } - - /* If a previous remote is set, remove its entry */ - if (previous_remote && previous_remote->in.s_addr != remote->in.s_addr) { - mr->range[0].min_ip = mr->range[0].max_ip = previous_remote->in.s_addr; - - if (!iptc_delete_entry("PREROUTING", entry, (unsigned char*) mask, h)) { - if (errno != ENOENT) - return -errno; - } - - mr->range[0].min_ip = mr->range[0].max_ip = remote->in.s_addr; - } - - /* Add the OUTPUT rule, if it is missing so far */ - if (!in_interface) { - - /* Don't apply onto loopback addresses */ - if (!destination) { - entry->ip.dst.s_addr = htobe32(0x7F000000); - entry->ip.dmsk.s_addr = htobe32(0xFF000000); - entry->ip.invflags = IPT_INV_DSTIP; - } - - if (!iptc_check_entry("OUTPUT", entry, (unsigned char*) mask, h)) { - if (errno != ENOENT) - return -errno; - - if (!iptc_insert_entry("OUTPUT", entry, 0, h)) - return -errno; - } - - /* If a previous remote is set, remove its entry */ - if (previous_remote && previous_remote->in.s_addr != remote->in.s_addr) { - mr->range[0].min_ip = mr->range[0].max_ip = previous_remote->in.s_addr; - - if (!iptc_delete_entry("OUTPUT", entry, (unsigned char*) mask, h)) { - if (errno != ENOENT) - return -errno; - } - } - } - } else { - if (!iptc_delete_entry("PREROUTING", entry, (unsigned char*) mask, h)) { - if (errno != ENOENT) - return -errno; - } - - if (!in_interface) { - if (!destination) { - entry->ip.dst.s_addr = htobe32(0x7F000000); - entry->ip.dmsk.s_addr = htobe32(0xFF000000); - entry->ip.invflags = IPT_INV_DSTIP; - } - - if (!iptc_delete_entry("OUTPUT", entry, (unsigned char*) mask, h)) { - if (errno != ENOENT) - return -errno; - } - } - } - - if (!iptc_commit(h)) - return -errno; - - return 0; -} diff --git a/src/shared/firewall-util.h b/src/shared/firewall-util.h deleted file mode 100644 index c39b34cf8f..0000000000 --- a/src/shared/firewall-util.h +++ /dev/null @@ -1,83 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2015 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 <stdint.h> - -#include "in-addr-util.h" - -#ifdef HAVE_LIBIPTC - -int fw_add_masquerade( - bool add, - int af, - int protocol, - const union in_addr_union *source, - unsigned source_prefixlen, - const char *out_interface, - const union in_addr_union *destination, - unsigned destination_prefixlen); - -int fw_add_local_dnat( - bool add, - int af, - int protocol, - const char *in_interface, - const union in_addr_union *source, - unsigned source_prefixlen, - const union in_addr_union *destination, - unsigned destination_prefixlen, - uint16_t local_port, - const union in_addr_union *remote, - uint16_t remote_port, - const union in_addr_union *previous_remote); - -#else - -static inline int fw_add_masquerade( - bool add, - int af, - int protocol, - const union in_addr_union *source, - unsigned source_prefixlen, - const char *out_interface, - const union in_addr_union *destination, - unsigned destination_prefixlen) { - return -EOPNOTSUPP; -} - -static inline int fw_add_local_dnat( - bool add, - int af, - int protocol, - const char *in_interface, - const union in_addr_union *source, - unsigned source_prefixlen, - const union in_addr_union *destination, - unsigned destination_prefixlen, - uint16_t local_port, - const union in_addr_union *remote, - uint16_t remote_port, - const union in_addr_union *previous_remote) { - return -EOPNOTSUPP; -} - -#endif diff --git a/src/shared/fstab-util.c b/src/shared/fstab-util.c deleted file mode 100644 index a4e0cd3267..0000000000 --- a/src/shared/fstab-util.c +++ /dev/null @@ -1,263 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2015 Zbigniew Jędrzejewski-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 <errno.h> -#include <mntent.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "alloc-util.h" -#include "device-nodes.h" -#include "fstab-util.h" -#include "macro.h" -#include "mount-util.h" -#include "parse-util.h" -#include "path-util.h" -#include "string-util.h" -#include "strv.h" -#include "util.h" - -bool fstab_is_mount_point(const char *mount) { - _cleanup_endmntent_ FILE *f = NULL; - struct mntent *m; - - f = setmntent("/etc/fstab", "r"); - if (!f) - return false; - - while ((m = getmntent(f))) - if (path_equal(m->mnt_dir, mount)) - return true; - - return false; -} - -int fstab_filter_options(const char *opts, const char *names, - const char **namefound, char **value, char **filtered) { - const char *name, *n = NULL, *x; - _cleanup_strv_free_ char **stor = NULL; - _cleanup_free_ char *v = NULL, **strv = NULL; - - assert(names && *names); - - if (!opts) - goto answer; - - /* If !value and !filtered, this function is not allowed to fail. */ - - if (!filtered) { - const char *word, *state; - size_t l; - - FOREACH_WORD_SEPARATOR(word, l, opts, ",", state) - NULSTR_FOREACH(name, names) { - if (l < strlen(name)) - continue; - if (!strneq(word, name, strlen(name))) - continue; - - /* we know that the string is NUL - * terminated, so *x is valid */ - x = word + strlen(name); - if (IN_SET(*x, '\0', '=', ',')) { - n = name; - if (value) { - free(v); - if (IN_SET(*x, '\0', ',')) - v = NULL; - else { - assert(*x == '='); - x++; - v = strndup(x, l - strlen(name) - 1); - if (!v) - return -ENOMEM; - } - } - } - } - } else { - char **t, **s; - - stor = strv_split(opts, ","); - if (!stor) - return -ENOMEM; - strv = memdup(stor, sizeof(char*) * (strv_length(stor) + 1)); - if (!strv) - return -ENOMEM; - - for (s = t = strv; *s; s++) { - NULSTR_FOREACH(name, names) { - x = startswith(*s, name); - if (x && IN_SET(*x, '\0', '=')) - goto found; - } - - *t = *s; - t++; - continue; - found: - /* Keep the last occurence found */ - n = name; - if (value) { - free(v); - if (*x == '\0') - v = NULL; - else { - assert(*x == '='); - x++; - v = strdup(x); - if (!v) - return -ENOMEM; - } - } - } - *t = NULL; - } - -answer: - if (namefound) - *namefound = n; - if (filtered) { - char *f; - - f = strv_join(strv, ","); - if (!f) - return -ENOMEM; - - *filtered = f; - } - if (value) { - *value = v; - v = NULL; - } - - return !!n; -} - -int fstab_extract_values(const char *opts, const char *name, char ***values) { - _cleanup_strv_free_ char **optsv = NULL, **res = NULL; - char **s; - - assert(opts); - assert(name); - assert(values); - - optsv = strv_split(opts, ","); - if (!optsv) - return -ENOMEM; - - STRV_FOREACH(s, optsv) { - char *arg; - int r; - - arg = startswith(*s, name); - if (!arg || *arg != '=') - continue; - r = strv_extend(&res, arg + 1); - if (r < 0) - return r; - } - - *values = res; - res = NULL; - - return !!*values; -} - -int fstab_find_pri(const char *options, int *ret) { - _cleanup_free_ char *opt = NULL; - int r; - unsigned pri; - - assert(ret); - - r = fstab_filter_options(options, "pri\0", NULL, &opt, NULL); - if (r < 0) - return r; - if (r == 0 || !opt) - return 0; - - r = safe_atou(opt, &pri); - if (r < 0) - return r; - - if ((int) pri < 0) - return -ERANGE; - - *ret = (int) pri; - return 1; -} - -static char *unquote(const char *s, const char* quotes) { - size_t l; - assert(s); - - /* This is rather stupid, simply removes the heading and - * trailing quotes if there is one. Doesn't care about - * escaping or anything. - * - * DON'T USE THIS FOR NEW CODE ANYMORE!*/ - - l = strlen(s); - if (l < 2) - return strdup(s); - - if (strchr(quotes, s[0]) && s[l-1] == s[0]) - return strndup(s+1, l-2); - - return strdup(s); -} - -static char *tag_to_udev_node(const char *tagvalue, const char *by) { - _cleanup_free_ char *t = NULL, *u = NULL; - size_t enc_len; - - u = unquote(tagvalue, QUOTES); - if (!u) - return NULL; - - enc_len = strlen(u) * 4 + 1; - t = new(char, enc_len); - if (!t) - return NULL; - - if (encode_devnode_name(u, t, enc_len) < 0) - return NULL; - - return strjoin("/dev/disk/by-", by, "/", t, NULL); -} - -char *fstab_node_to_udev_node(const char *p) { - assert(p); - - if (startswith(p, "LABEL=")) - return tag_to_udev_node(p+6, "label"); - - if (startswith(p, "UUID=")) - return tag_to_udev_node(p+5, "uuid"); - - if (startswith(p, "PARTUUID=")) - return tag_to_udev_node(p+9, "partuuid"); - - if (startswith(p, "PARTLABEL=")) - return tag_to_udev_node(p+10, "partlabel"); - - return strdup(p); -} diff --git a/src/shared/fstab-util.h b/src/shared/fstab-util.h deleted file mode 100644 index 679f6902f7..0000000000 --- a/src/shared/fstab-util.h +++ /dev/null @@ -1,52 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2015 Zbigniew Jędrzejewski-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 <stdbool.h> -#include <stddef.h> - -#include "macro.h" - -bool fstab_is_mount_point(const char *mount); - -int fstab_filter_options(const char *opts, const char *names, const char **namefound, char **value, char **filtered); - -int fstab_extract_values(const char *opts, const char *name, char ***values); - -static inline bool fstab_test_option(const char *opts, const char *names) { - return !!fstab_filter_options(opts, names, NULL, NULL, NULL); -} - -int fstab_find_pri(const char *options, int *ret); - -static inline bool fstab_test_yes_no_option(const char *opts, const char *yes_no) { - int r; - const char *opt; - - /* If first name given is last, return 1. - * If second name given is last or neither is found, return 0. */ - - r = fstab_filter_options(opts, yes_no, &opt, NULL, NULL); - assert(r >= 0); - - return opt == yes_no; -} - -char *fstab_node_to_udev_node(const char *p); diff --git a/src/shared/gcrypt-util.c b/src/shared/gcrypt-util.c deleted file mode 100644 index 39b544b6f0..0000000000 --- a/src/shared/gcrypt-util.c +++ /dev/null @@ -1,71 +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/>. -***/ - -#ifdef HAVE_GCRYPT -#include <gcrypt.h> - -#include "gcrypt-util.h" -#include "hexdecoct.h" - -void initialize_libgcrypt(bool secmem) { - 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 wish to make use of this - * feature should initialize the library manually */ - if (!secmem) - gcry_control(GCRYCTL_DISABLE_SECMEM); - gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0); -} - -int string_hashsum(const char *s, size_t len, int md_algorithm, char **out) { - gcry_md_hd_t md = NULL; - size_t hash_size; - void *hash; - char *enc; - - initialize_libgcrypt(false); - - hash_size = gcry_md_get_algo_dlen(md_algorithm); - assert(hash_size > 0); - - gcry_md_open(&md, md_algorithm, 0); - if (!md) - return -EIO; - - gcry_md_write(md, s, len); - - hash = gcry_md_read(md, 0); - if (!hash) - return -EIO; - - enc = hexmem(hash, hash_size); - if (!enc) - return -ENOMEM; - - *out = enc; - return 0; -} -#endif diff --git a/src/shared/gcrypt-util.h b/src/shared/gcrypt-util.h deleted file mode 100644 index 1da12a32be..0000000000 --- a/src/shared/gcrypt-util.h +++ /dev/null @@ -1,47 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2016 Zbigniew Jędrzejewski-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 <errno.h> -#include <stdbool.h> -#include <stddef.h> - -#ifdef HAVE_GCRYPT -#include <gcrypt.h> - -void initialize_libgcrypt(bool secmem); -int string_hashsum(const char *s, size_t len, int md_algorithm, char **out); -#endif - -static inline int string_hashsum_sha224(const char *s, size_t len, char **out) { -#ifdef HAVE_GCRYPT - return string_hashsum(s, len, GCRY_MD_SHA224, out); -#else - return -EOPNOTSUPP; -#endif -} - -static inline int string_hashsum_sha256(const char *s, size_t len, char **out) { -#ifdef HAVE_GCRYPT - return string_hashsum(s, len, GCRY_MD_SHA256, out); -#else - return -EOPNOTSUPP; -#endif -} diff --git a/src/shared/generator.c b/src/shared/generator.c deleted file mode 100644 index 70afc6a285..0000000000 --- a/src/shared/generator.c +++ /dev/null @@ -1,207 +0,0 @@ -/*** - 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 <errno.h> -#include <unistd.h> - -#include "alloc-util.h" -#include "dropin.h" -#include "escape.h" -#include "fd-util.h" -#include "fileio.h" -#include "fstab-util.h" -#include "generator.h" -#include "log.h" -#include "macro.h" -#include "mkdir.h" -#include "path-util.h" -#include "special.h" -#include "string-util.h" -#include "time-util.h" -#include "unit-name.h" -#include "util.h" - -static int write_fsck_sysroot_service(const char *dir, const char *what) { - _cleanup_free_ char *device = NULL, *escaped = NULL; - _cleanup_fclose_ FILE *f = NULL; - const char *unit; - int r; - - escaped = cescape(what); - if (!escaped) - return log_oom(); - - unit = strjoina(dir, "/systemd-fsck-root.service"); - log_debug("Creating %s", unit); - - r = unit_name_from_path(what, ".device", &device); - if (r < 0) - return log_error_errno(r, "Failed to convert device \"%s\" to unit name: %m", what); - - f = fopen(unit, "wxe"); - if (!f) - return log_error_errno(errno, "Failed to create unit file %s: %m", unit); - - fprintf(f, - "# Automatically generated by %1$s\n\n" - "[Unit]\n" - "Documentation=man:systemd-fsck-root.service(8)\n" - "Description=File System Check on %2$s\n" - "DefaultDependencies=no\n" - "BindsTo=%3$s\n" - "After=initrd-root-device.target local-fs-pre.target\n" - "Before=shutdown.target\n" - "\n" - "[Service]\n" - "Type=oneshot\n" - "RemainAfterExit=yes\n" - "ExecStart=" SYSTEMD_FSCK_PATH " %4$s\n" - "TimeoutSec=0\n", - program_invocation_short_name, - what, - device, - escaped); - - r = fflush_and_check(f); - if (r < 0) - return log_error_errno(r, "Failed to write unit file %s: %m", unit); - - return 0; -} - -int generator_write_fsck_deps( - FILE *f, - const char *dir, - const char *what, - const char *where, - const char *fstype) { - - int r; - - assert(f); - assert(dir); - assert(what); - assert(where); - - if (!is_device_path(what)) { - log_warning("Checking was requested for \"%s\", but it is not a device.", what); - return 0; - } - - if (!isempty(fstype) && !streq(fstype, "auto")) { - r = fsck_exists(fstype); - if (r < 0) - log_warning_errno(r, "Checking was requested for %s, but couldn't detect if fsck.%s may be used, proceeding: %m", what, fstype); - else if (r == 0) { - /* treat missing check as essentially OK */ - log_debug("Checking was requested for %s, but fsck.%s does not exist.", what, fstype); - return 0; - } - } - - if (path_equal(where, "/")) { - const char *lnk; - - lnk = strjoina(dir, "/" SPECIAL_LOCAL_FS_TARGET ".wants/systemd-fsck-root.service"); - - mkdir_parents(lnk, 0755); - if (symlink(SYSTEM_DATA_UNIT_PATH "/systemd-fsck-root.service", lnk) < 0) - return log_error_errno(errno, "Failed to create symlink %s: %m", lnk); - - } else { - _cleanup_free_ char *_fsck = NULL; - const char *fsck; - - if (in_initrd() && path_equal(where, "/sysroot")) { - r = write_fsck_sysroot_service(dir, what); - if (r < 0) - return r; - - fsck = "systemd-fsck-root.service"; - } else { - r = unit_name_from_path_instance("systemd-fsck", what, ".service", &_fsck); - if (r < 0) - return log_error_errno(r, "Failed to create fsck service name: %m"); - - fsck = _fsck; - } - - fprintf(f, - "Requires=%1$s\n" - "After=%1$s\n", - fsck); - } - - return 0; -} - -int generator_write_timeouts( - const char *dir, - const char *what, - const char *where, - const char *opts, - char **filtered) { - - /* Allow configuration how long we wait for a device that - * backs a mount point to show up. This is useful to support - * endless device timeouts for devices that show up only after - * user input, like crypto devices. */ - - _cleanup_free_ char *node = NULL, *unit = NULL, *timeout = NULL; - usec_t u; - int r; - - r = fstab_filter_options(opts, "comment=systemd.device-timeout\0" "x-systemd.device-timeout\0", - NULL, &timeout, filtered); - if (r <= 0) - return r; - - r = parse_sec(timeout, &u); - if (r < 0) { - log_warning("Failed to parse timeout for %s, ignoring: %s", where, timeout); - return 0; - } - - node = fstab_node_to_udev_node(what); - if (!node) - return log_oom(); - - r = unit_name_from_path(node, ".device", &unit); - if (r < 0) - return log_error_errno(r, "Failed to make unit name from path: %m"); - - return write_drop_in_format(dir, unit, 50, "device-timeout", - "# Automatically generated by %s\n\n" - "[Unit]\nJobTimeoutSec=%s", - program_invocation_short_name, timeout); -} - -int generator_write_initrd_root_device_deps(const char *dir, const char *what) { - _cleanup_free_ char *unit = NULL; - int r; - - r = unit_name_from_path(what, ".device", &unit); - if (r < 0) - return log_error_errno(r, "Failed to make unit name from path: %m"); - - return write_drop_in_format(dir, SPECIAL_INITRD_ROOT_DEVICE_TARGET, 50, "root-device", - "# Automatically generated by %s\n\n" - "[Unit]\nRequires=%s\nAfter=%s", - program_invocation_short_name, unit, unit); -} diff --git a/src/shared/generator.h b/src/shared/generator.h deleted file mode 100644 index a6017c1b76..0000000000 --- a/src/shared/generator.h +++ /dev/null @@ -1,40 +0,0 @@ -#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 <stdio.h> - -int generator_write_fsck_deps( - FILE *f, - const char *dir, - const char *what, - const char *where, - const char *type); - -int generator_write_timeouts( - const char *dir, - const char *what, - const char *where, - const char *opts, - char **filtered); - -int generator_write_initrd_root_device_deps( - const char *dir, - const char *what); diff --git a/src/shared/gpt.h b/src/shared/gpt.h deleted file mode 100644 index 55b41bbcd8..0000000000 --- a/src/shared/gpt.h +++ /dev/null @@ -1,66 +0,0 @@ -#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 <endian.h> - -#include "sd-id128.h" - -/* We only support root disk discovery for x86, x86-64, Itanium and ARM for - * now, since EFI for anything else doesn't really exist, and we only - * care for root partitions on the same disk as the EFI ESP. */ - -#define GPT_ROOT_X86 SD_ID128_MAKE(44,47,95,40,f2,97,41,b2,9a,f7,d1,31,d5,f0,45,8a) -#define GPT_ROOT_X86_64 SD_ID128_MAKE(4f,68,bc,e3,e8,cd,4d,b1,96,e7,fb,ca,f9,84,b7,09) -#define GPT_ROOT_ARM SD_ID128_MAKE(69,da,d7,10,2c,e4,4e,3c,b1,6c,21,a1,d4,9a,be,d3) -#define GPT_ROOT_ARM_64 SD_ID128_MAKE(b9,21,b0,45,1d,f0,41,c3,af,44,4c,6f,28,0d,3f,ae) -#define GPT_ROOT_IA64 SD_ID128_MAKE(99,3d,8d,3d,f8,0e,42,25,85,5a,9d,af,8e,d7,ea,97) - -#define GPT_ESP SD_ID128_MAKE(c1,2a,73,28,f8,1f,11,d2,ba,4b,00,a0,c9,3e,c9,3b) -#define GPT_SWAP SD_ID128_MAKE(06,57,fd,6d,a4,ab,43,c4,84,e5,09,33,c8,4b,4f,4f) -#define GPT_HOME SD_ID128_MAKE(93,3a,c7,e1,2e,b4,4f,13,b8,44,0e,14,e2,ae,f9,15) -#define GPT_SRV SD_ID128_MAKE(3b,8f,84,25,20,e0,4f,3b,90,7f,1a,25,a7,6f,98,e8) - -#if defined(__x86_64__) -# define GPT_ROOT_NATIVE GPT_ROOT_X86_64 -# define GPT_ROOT_SECONDARY GPT_ROOT_X86 -#elif defined(__i386__) -# define GPT_ROOT_NATIVE GPT_ROOT_X86 -#endif - -#if defined(__ia64__) -# define GPT_ROOT_NATIVE GPT_ROOT_IA64 -#endif - -#if defined(__aarch64__) && (__BYTE_ORDER != __BIG_ENDIAN) -# define GPT_ROOT_NATIVE GPT_ROOT_ARM_64 -# define GPT_ROOT_SECONDARY GPT_ROOT_ARM -#elif defined(__arm__) && (__BYTE_ORDER != __BIG_ENDIAN) -# define GPT_ROOT_NATIVE GPT_ROOT_ARM -#endif - -/* Flags we recognize on the root, swap, home and srv partitions when - * doing auto-discovery. These happen to be identical to what - * Microsoft defines for its own Basic Data Partitions, but that's - * just because we saw no point in defining any other values here. */ -#define GPT_FLAG_READ_ONLY (1ULL << 60) -#define GPT_FLAG_NO_AUTO (1ULL << 63) - -#define GPT_LINUX_GENERIC SD_ID128_MAKE(0f,c6,3d,af,84,83,47,72,8e,79,3d,69,d8,47,7d,e4) diff --git a/src/shared/ima-util.c b/src/shared/ima-util.c deleted file mode 100644 index 789064d653..0000000000 --- a/src/shared/ima-util.c +++ /dev/null @@ -1,32 +0,0 @@ -/*** - 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 <unistd.h> - -#include "ima-util.h" - -static int use_ima_cached = -1; - -bool use_ima(void) { - - if (use_ima_cached < 0) - use_ima_cached = access("/sys/kernel/security/ima/", F_OK) >= 0; - - return use_ima_cached; -} diff --git a/src/shared/ima-util.h b/src/shared/ima-util.h deleted file mode 100644 index 5be94761fd..0000000000 --- a/src/shared/ima-util.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once - -/*** - 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 <stdbool.h> - -bool use_ima(void); diff --git a/src/shared/import-util.c b/src/shared/import-util.c deleted file mode 100644 index ab701ad8b2..0000000000 --- a/src/shared/import-util.c +++ /dev/null @@ -1,185 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2015 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 <string.h> - -#include "alloc-util.h" -#include "btrfs-util.h" -#include "import-util.h" -#include "log.h" -#include "macro.h" -#include "path-util.h" -#include "string-table.h" -#include "string-util.h" -#include "util.h" - -int import_url_last_component(const char *url, char **ret) { - const char *e, *p; - char *s; - - e = strchrnul(url, '?'); - - while (e > url && e[-1] == '/') - e--; - - p = e; - while (p > url && p[-1] != '/') - p--; - - if (e <= p) - return -EINVAL; - - s = strndup(p, e - p); - if (!s) - return -ENOMEM; - - *ret = s; - return 0; -} - - -int import_url_change_last_component(const char *url, const char *suffix, char **ret) { - const char *e; - char *s; - - assert(url); - assert(ret); - - e = strchrnul(url, '?'); - - while (e > url && e[-1] == '/') - e--; - - while (e > url && e[-1] != '/') - e--; - - if (e <= url) - return -EINVAL; - - s = new(char, (e - url) + strlen(suffix) + 1); - if (!s) - return -ENOMEM; - - strcpy(mempcpy(s, url, e - url), suffix); - *ret = s; - return 0; -} - -static const char* const import_verify_table[_IMPORT_VERIFY_MAX] = { - [IMPORT_VERIFY_NO] = "no", - [IMPORT_VERIFY_CHECKSUM] = "checksum", - [IMPORT_VERIFY_SIGNATURE] = "signature", -}; - -DEFINE_STRING_TABLE_LOOKUP(import_verify, ImportVerify); - -int tar_strip_suffixes(const char *name, char **ret) { - const char *e; - char *s; - - e = endswith(name, ".tar"); - if (!e) - e = endswith(name, ".tar.xz"); - if (!e) - e = endswith(name, ".tar.gz"); - if (!e) - e = endswith(name, ".tar.bz2"); - if (!e) - e = endswith(name, ".tgz"); - if (!e) - e = strchr(name, 0); - - if (e <= name) - return -EINVAL; - - s = strndup(name, e - name); - if (!s) - return -ENOMEM; - - *ret = s; - return 0; -} - -int raw_strip_suffixes(const char *p, char **ret) { - - static const char suffixes[] = - ".xz\0" - ".gz\0" - ".bz2\0" - ".raw\0" - ".qcow2\0" - ".img\0" - ".bin\0"; - - _cleanup_free_ char *q = NULL; - - q = strdup(p); - if (!q) - return -ENOMEM; - - for (;;) { - const char *sfx; - bool changed = false; - - NULSTR_FOREACH(sfx, suffixes) { - char *e; - - e = endswith(q, sfx); - if (e) { - *e = 0; - changed = true; - } - } - - if (!changed) - break; - } - - *ret = q; - q = NULL; - - return 0; -} - -int import_assign_pool_quota_and_warn(const char *path) { - int r; - - r = btrfs_subvol_auto_qgroup("/var/lib/machines", 0, true); - if (r == -ENOTTY) { - log_debug_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines, as directory is not on btrfs or not a subvolume. Ignoring."); - return 0; - } - if (r < 0) - return log_error_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines: %m"); - if (r > 0) - log_info("Set up default quota hierarchy for /var/lib/machines."); - - r = btrfs_subvol_auto_qgroup(path, 0, true); - if (r == -ENOTTY) { - log_debug_errno(r, "Failed to set up quota hierarchy for %s, as directory is not on btrfs or not a subvolume. Ignoring.", path); - return 0; - } - if (r < 0) - return log_error_errno(r, "Failed to set up default quota hierarchy for %s: %m", path); - if (r > 0) - log_info("Set up default quota hierarchy for %s.", path); - - return 0; -} diff --git a/src/shared/import-util.h b/src/shared/import-util.h deleted file mode 100644 index 77b17d91f3..0000000000 --- a/src/shared/import-util.h +++ /dev/null @@ -1,43 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2015 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 "macro.h" - -typedef enum ImportVerify { - IMPORT_VERIFY_NO, - IMPORT_VERIFY_CHECKSUM, - IMPORT_VERIFY_SIGNATURE, - _IMPORT_VERIFY_MAX, - _IMPORT_VERIFY_INVALID = -1, -} ImportVerify; - -int import_url_last_component(const char *url, char **ret); -int import_url_change_last_component(const char *url, const char *suffix, char **ret); - -const char* import_verify_to_string(ImportVerify v) _const_; -ImportVerify import_verify_from_string(const char *s) _pure_; - -int tar_strip_suffixes(const char *name, char **ret); -int raw_strip_suffixes(const char *name, char **ret); - -int import_assign_pool_quota_and_warn(const char *path); diff --git a/src/shared/initreq.h b/src/shared/initreq.h deleted file mode 100644 index 710037d84b..0000000000 --- a/src/shared/initreq.h +++ /dev/null @@ -1,77 +0,0 @@ -/* - * initreq.h Interface to talk to init through /dev/initctl. - * - * Copyright (C) 1995-2004 Miquel van Smoorenburg - * - * 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 of the License, or (at your option) any later version. - * - * Version: @(#)initreq.h 1.28 31-Mar-2004 MvS - * - */ -#ifndef _INITREQ_H -#define _INITREQ_H - -#include <sys/param.h> - -#if defined(__FreeBSD_kernel__) -# define INIT_FIFO "/etc/.initctl" -#else -# define INIT_FIFO "/dev/initctl" -#endif - -#define INIT_MAGIC 0x03091969 -#define INIT_CMD_START 0 -#define INIT_CMD_RUNLVL 1 -#define INIT_CMD_POWERFAIL 2 -#define INIT_CMD_POWERFAILNOW 3 -#define INIT_CMD_POWEROK 4 -#define INIT_CMD_BSD 5 -#define INIT_CMD_SETENV 6 -#define INIT_CMD_UNSETENV 7 - -#define INIT_CMD_CHANGECONS 12345 - -#ifdef MAXHOSTNAMELEN -# define INITRQ_HLEN MAXHOSTNAMELEN -#else -# define INITRQ_HLEN 64 -#endif - -/* - * This is what BSD 4.4 uses when talking to init. - * Linux doesn't use this right now. - */ -struct init_request_bsd { - char gen_id[8]; /* Beats me.. telnetd uses "fe" */ - char tty_id[16]; /* Tty name minus /dev/tty */ - char host[INITRQ_HLEN]; /* Hostname */ - char term_type[16]; /* Terminal type */ - int signal; /* Signal to send */ - int pid; /* Process to send to */ - char exec_name[128]; /* Program to execute */ - char reserved[128]; /* For future expansion. */ -}; - - -/* - * Because of legacy interfaces, "runlevel" and "sleeptime" - * aren't in a separate struct in the union. - * - * The weird sizes are because init expects the whole - * struct to be 384 bytes. - */ -struct init_request { - int magic; /* Magic number */ - int cmd; /* What kind of request */ - int runlevel; /* Runlevel to change to */ - int sleeptime; /* Time between TERM and KILL */ - union { - struct init_request_bsd bsd; - char data[368]; - } i; -}; - -#endif diff --git a/src/shared/install-printf.c b/src/shared/install-printf.c deleted file mode 100644 index cbdf66827f..0000000000 --- a/src/shared/install-printf.c +++ /dev/null @@ -1,172 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2013 Zbigniew Jędrzejewski-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 <errno.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#include "formats-util.h" -#include "install-printf.h" -#include "install.h" -#include "macro.h" -#include "specifier.h" -#include "string-util.h" -#include "unit-name.h" -#include "user-util.h" - -static int specifier_prefix_and_instance(char specifier, void *data, void *userdata, char **ret) { - const UnitFileInstallInfo *i = userdata; - _cleanup_free_ char *prefix = NULL; - int r; - - assert(i); - - r = unit_name_to_prefix_and_instance(i->name, &prefix); - if (r < 0) - return r; - - if (endswith(prefix, "@") && i->default_instance) { - char *ans; - - ans = strjoin(prefix, i->default_instance, NULL); - if (!ans) - return -ENOMEM; - *ret = ans; - } else { - *ret = prefix; - prefix = NULL; - } - - return 0; -} - -static int specifier_name(char specifier, void *data, void *userdata, char **ret) { - const UnitFileInstallInfo *i = userdata; - char *ans; - - assert(i); - - if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE) && i->default_instance) - return unit_name_replace_instance(i->name, i->default_instance, ret); - - ans = strdup(i->name); - if (!ans) - return -ENOMEM; - *ret = ans; - return 0; -} - -static int specifier_prefix(char specifier, void *data, void *userdata, char **ret) { - const UnitFileInstallInfo *i = userdata; - - assert(i); - - return unit_name_to_prefix(i->name, ret); -} - -static int specifier_instance(char specifier, void *data, void *userdata, char **ret) { - const UnitFileInstallInfo *i = userdata; - char *instance; - int r; - - assert(i); - - r = unit_name_to_instance(i->name, &instance); - if (r < 0) - return r; - - if (isempty(instance)) { - instance = strdup(i->default_instance ?: ""); - if (!instance) - return -ENOMEM; - } - - *ret = instance; - return 0; -} - -static int specifier_user_name(char specifier, void *data, void *userdata, char **ret) { - char *t; - - /* If we are UID 0 (root), this will not result in NSS, - * otherwise it might. This is good, as we want to be able to - * run this in PID 1, where our user ID is 0, but where NSS - * lookups are not allowed. - - * We don't user getusername_malloc() here, because we don't want to look - * at $USER, to remain consistent with specifer_user_id() below. - */ - - t = uid_to_name(getuid()); - if (!t) - return -ENOMEM; - - *ret = t; - return 0; -} - -static int specifier_user_id(char specifier, void *data, void *userdata, char **ret) { - - if (asprintf(ret, UID_FMT, getuid()) < 0) - return -ENOMEM; - - return 0; -} - -int install_full_printf(UnitFileInstallInfo *i, const char *format, char **ret) { - - /* This is similar to unit_full_printf() but does not support - * anything path-related. - * - * %n: the full id of the unit (foo@bar.waldo) - * %N: the id of the unit without the suffix (foo@bar) - * %p: the prefix (foo) - * %i: the instance (bar) - - * %U the UID of the running user - * %u the username of running user - * %m the machine ID of the running system - * %H the host name of the running system - * %b the boot ID of the running system - * %v `uname -r` of the running system - */ - - const Specifier table[] = { - { 'n', specifier_name, NULL }, - { 'N', specifier_prefix_and_instance, NULL }, - { 'p', specifier_prefix, NULL }, - { 'i', specifier_instance, NULL }, - - { 'U', specifier_user_id, NULL }, - { 'u', specifier_user_name, NULL }, - - { 'm', specifier_machine_id, NULL }, - { 'H', specifier_host_name, NULL }, - { 'b', specifier_boot_id, NULL }, - { 'v', specifier_kernel_release, NULL }, - {} - }; - - assert(i); - assert(format); - assert(ret); - - return specifier_printf(format, table, i, ret); -} diff --git a/src/shared/install-printf.h b/src/shared/install-printf.h deleted file mode 100644 index 8a570fc265..0000000000 --- a/src/shared/install-printf.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 Zbigniew Jędrzejewski-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 "install.h" - -int install_full_printf(UnitFileInstallInfo *i, const char *format, char **ret); diff --git a/src/shared/install.c b/src/shared/install.c deleted file mode 100644 index 96fba6e25b..0000000000 --- a/src/shared/install.c +++ /dev/null @@ -1,3041 +0,0 @@ -/*** - 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 <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <fnmatch.h> -#include <limits.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <unistd.h> - -#include "alloc-util.h" -#include "conf-files.h" -#include "conf-parser.h" -#include "dirent-util.h" -#include "extract-word.h" -#include "fd-util.h" -#include "fileio.h" -#include "fs-util.h" -#include "hashmap.h" -#include "install-printf.h" -#include "install.h" -#include "locale-util.h" -#include "log.h" -#include "macro.h" -#include "mkdir.h" -#include "path-lookup.h" -#include "path-util.h" -#include "rm-rf.h" -#include "set.h" -#include "special.h" -#include "stat-util.h" -#include "string-table.h" -#include "string-util.h" -#include "strv.h" -#include "unit-name.h" - -#define UNIT_FILE_FOLLOW_SYMLINK_MAX 64 - -typedef enum SearchFlags { - SEARCH_LOAD = 1, - SEARCH_FOLLOW_CONFIG_SYMLINKS = 2, -} SearchFlags; - -typedef struct { - OrderedHashmap *will_process; - OrderedHashmap *have_processed; -} InstallContext; - -typedef enum { - PRESET_UNKNOWN, - PRESET_ENABLE, - PRESET_DISABLE, -} PresetAction; - -typedef struct { - char *pattern; - PresetAction action; -} PresetRule; - -typedef struct { - PresetRule *rules; - size_t n_rules; -} Presets; - -static inline void presets_freep(Presets *p) { - size_t i; - - if (!p) - return; - - for (i = 0; i < p->n_rules; i++) - free(p->rules[i].pattern); - - free(p->rules); - p->n_rules = 0; -} - -static int unit_file_lookup_state(UnitFileScope scope, const LookupPaths *paths, const char *name, UnitFileState *ret); - -bool unit_type_may_alias(UnitType type) { - return IN_SET(type, - UNIT_SERVICE, - UNIT_SOCKET, - UNIT_TARGET, - UNIT_DEVICE, - UNIT_TIMER, - UNIT_PATH); -} - -bool unit_type_may_template(UnitType type) { - return IN_SET(type, - UNIT_SERVICE, - UNIT_SOCKET, - UNIT_TARGET, - UNIT_TIMER, - UNIT_PATH); -} - -static const char *unit_file_type_table[_UNIT_FILE_TYPE_MAX] = { - [UNIT_FILE_TYPE_REGULAR] = "regular", - [UNIT_FILE_TYPE_SYMLINK] = "symlink", - [UNIT_FILE_TYPE_MASKED] = "masked", -}; - -DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(unit_file_type, UnitFileType); - -static int in_search_path(const LookupPaths *p, const char *path) { - _cleanup_free_ char *parent = NULL; - char **i; - - assert(path); - - parent = dirname_malloc(path); - if (!parent) - return -ENOMEM; - - STRV_FOREACH(i, p->search_path) - if (path_equal(parent, *i)) - return true; - - return false; -} - -static const char* skip_root(const LookupPaths *p, const char *path) { - char *e; - - assert(p); - assert(path); - - if (!p->root_dir) - return path; - - e = path_startswith(path, p->root_dir); - if (!e) - return NULL; - - /* Make sure the returned path starts with a slash */ - if (e[0] != '/') { - if (e == path || e[-1] != '/') - return NULL; - - e--; - } - - return e; -} - -static int path_is_generator(const LookupPaths *p, const char *path) { - _cleanup_free_ char *parent = NULL; - - assert(p); - assert(path); - - parent = dirname_malloc(path); - if (!parent) - return -ENOMEM; - - return path_equal_ptr(parent, p->generator) || - path_equal_ptr(parent, p->generator_early) || - path_equal_ptr(parent, p->generator_late); -} - -static int path_is_transient(const LookupPaths *p, const char *path) { - _cleanup_free_ char *parent = NULL; - - assert(p); - assert(path); - - parent = dirname_malloc(path); - if (!parent) - return -ENOMEM; - - return path_equal_ptr(parent, p->transient); -} - -static int path_is_control(const LookupPaths *p, const char *path) { - _cleanup_free_ char *parent = NULL; - - assert(p); - assert(path); - - parent = dirname_malloc(path); - if (!parent) - return -ENOMEM; - - return path_equal_ptr(parent, p->persistent_control) || - path_equal_ptr(parent, p->runtime_control); -} - -static int path_is_config(const LookupPaths *p, const char *path) { - _cleanup_free_ char *parent = NULL; - - assert(p); - assert(path); - - /* Note that we do *not* have generic checks for /etc or /run in place, since with - * them we couldn't discern configuration from transient or generated units */ - - parent = dirname_malloc(path); - if (!parent) - return -ENOMEM; - - return path_equal_ptr(parent, p->persistent_config) || - path_equal_ptr(parent, p->runtime_config); -} - -static int path_is_runtime(const LookupPaths *p, const char *path) { - _cleanup_free_ char *parent = NULL; - const char *rpath; - - assert(p); - assert(path); - - /* Everything in /run is considered runtime. On top of that we also add - * explicit checks for the various runtime directories, as safety net. */ - - rpath = skip_root(p, path); - if (rpath && path_startswith(rpath, "/run")) - return true; - - parent = dirname_malloc(path); - if (!parent) - return -ENOMEM; - - return path_equal_ptr(parent, p->runtime_config) || - path_equal_ptr(parent, p->generator) || - path_equal_ptr(parent, p->generator_early) || - path_equal_ptr(parent, p->generator_late) || - path_equal_ptr(parent, p->transient) || - path_equal_ptr(parent, p->runtime_control); -} - -static int path_is_vendor(const LookupPaths *p, const char *path) { - const char *rpath; - - assert(p); - assert(path); - - rpath = skip_root(p, path); - if (!rpath) - return 0; - - if (path_startswith(rpath, "/usr")) - return true; - -#ifdef HAVE_SPLIT_USR - if (path_startswith(rpath, "/lib")) - return true; -#endif - - return path_equal(rpath, SYSTEM_DATA_UNIT_PATH); -} - -int unit_file_changes_add( - UnitFileChange **changes, - unsigned *n_changes, - UnitFileChangeType type, - const char *path, - const char *source) { - - _cleanup_free_ char *p = NULL, *s = NULL; - UnitFileChange *c; - - assert(path); - assert(!changes == !n_changes); - - if (!changes) - return 0; - - c = realloc(*changes, (*n_changes + 1) * sizeof(UnitFileChange)); - if (!c) - return -ENOMEM; - *changes = c; - - p = strdup(path); - if (source) - s = strdup(source); - - if (!p || (source && !s)) - return -ENOMEM; - - path_kill_slashes(p); - if (s) - path_kill_slashes(s); - - c[*n_changes] = (UnitFileChange) { type, p, s }; - p = s = NULL; - (*n_changes) ++; - return 0; -} - -void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes) { - unsigned i; - - assert(changes || n_changes == 0); - - for (i = 0; i < n_changes; i++) { - free(changes[i].path); - free(changes[i].source); - } - - free(changes); -} - -void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, unsigned n_changes, bool quiet) { - unsigned i; - bool logged = false; - - assert(changes || n_changes == 0); - /* If verb is not specified, errors are not allowed! */ - assert(verb || r >= 0); - - for (i = 0; i < n_changes; i++) { - assert(verb || changes[i].type >= 0); - - switch(changes[i].type) { - case UNIT_FILE_SYMLINK: - if (!quiet) - log_info("Created symlink %s %s %s.", - changes[i].path, - special_glyph(ARROW), - changes[i].source); - break; - case UNIT_FILE_UNLINK: - if (!quiet) - log_info("Removed %s.", changes[i].path); - break; - case UNIT_FILE_IS_MASKED: - if (!quiet) - log_info("Unit %s is masked, ignoring.", changes[i].path); - break; - case UNIT_FILE_IS_DANGLING: - if (!quiet) - log_info("Unit %s is an alias to a unit that is not present, ignoring.", - changes[i].path); - break; - case -EEXIST: - if (changes[i].source) - log_error_errno(changes[i].type, - "Failed to %s unit, file %s already exists and is a symlink to %s.", - verb, changes[i].path, changes[i].source); - else - log_error_errno(changes[i].type, - "Failed to %s unit, file %s already exists.", - verb, changes[i].path); - logged = true; - break; - case -ERFKILL: - log_error_errno(changes[i].type, "Failed to %s unit, unit %s is masked.", - verb, changes[i].path); - logged = true; - break; - case -EADDRNOTAVAIL: - log_error_errno(changes[i].type, "Failed to %s unit, unit %s is transient or generated.", - verb, changes[i].path); - logged = true; - break; - case -ELOOP: - log_error_errno(changes[i].type, "Failed to %s unit, refusing to operate on linked unit file %s", - verb, changes[i].path); - logged = true; - break; - default: - assert(changes[i].type < 0); - log_error_errno(changes[i].type, "Failed to %s unit, file %s: %m.", - verb, changes[i].path); - logged = true; - } - } - - if (r < 0 && !logged) - log_error_errno(r, "Failed to %s: %m.", verb); -} - -/** - * Checks if two paths or symlinks from wd are the same, when root is the root of the filesystem. - * wc should be the full path in the host file system. - */ -static bool chroot_symlinks_same(const char *root, const char *wd, const char *a, const char *b) { - assert(path_is_absolute(wd)); - - /* This will give incorrect results if the paths are relative and go outside - * of the chroot. False negatives are possible. */ - - if (!root) - root = "/"; - - a = strjoina(path_is_absolute(a) ? root : wd, "/", a); - b = strjoina(path_is_absolute(b) ? root : wd, "/", b); - return path_equal_or_files_same(a, b); -} - -static int create_symlink( - const LookupPaths *paths, - const char *old_path, - const char *new_path, - bool force, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_free_ char *dest = NULL, *dirname = NULL; - const char *rp; - int r; - - assert(old_path); - assert(new_path); - - rp = skip_root(paths, old_path); - if (rp) - old_path = rp; - - /* Actually create a symlink, and remember that we did. Is - * smart enough to check if there's already a valid symlink in - * place. - * - * Returns 1 if a symlink was created or already exists and points to - * the right place, or negative on error. - */ - - mkdir_parents_label(new_path, 0755); - - if (symlink(old_path, new_path) >= 0) { - unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); - return 1; - } - - if (errno != EEXIST) { - unit_file_changes_add(changes, n_changes, -errno, new_path, NULL); - return -errno; - } - - r = readlink_malloc(new_path, &dest); - if (r < 0) { - /* translate EINVAL (non-symlink exists) to EEXIST */ - if (r == -EINVAL) - r = -EEXIST; - - unit_file_changes_add(changes, n_changes, r, new_path, NULL); - return r; - } - - dirname = dirname_malloc(new_path); - if (!dirname) - return -ENOMEM; - - if (chroot_symlinks_same(paths->root_dir, dirname, dest, old_path)) - return 1; - - if (!force) { - unit_file_changes_add(changes, n_changes, -EEXIST, new_path, dest); - return -EEXIST; - } - - r = symlink_atomic(old_path, new_path); - if (r < 0) { - unit_file_changes_add(changes, n_changes, r, new_path, NULL); - return r; - } - - unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL); - unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); - - return 1; -} - -static int mark_symlink_for_removal( - Set **remove_symlinks_to, - const char *p) { - - char *n; - int r; - - assert(p); - - r = set_ensure_allocated(remove_symlinks_to, &string_hash_ops); - if (r < 0) - return r; - - n = strdup(p); - if (!n) - return -ENOMEM; - - path_kill_slashes(n); - - r = set_consume(*remove_symlinks_to, n); - if (r == -EEXIST) - return 0; - if (r < 0) - return r; - - return 1; -} - -static int remove_marked_symlinks_fd( - Set *remove_symlinks_to, - int fd, - const char *path, - const char *config_path, - const LookupPaths *lp, - bool dry_run, - bool *restart, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_closedir_ DIR *d = NULL; - struct dirent *de; - int r = 0; - - assert(remove_symlinks_to); - assert(fd >= 0); - assert(path); - assert(config_path); - assert(lp); - assert(restart); - - d = fdopendir(fd); - if (!d) { - safe_close(fd); - return -errno; - } - - rewinddir(d); - - FOREACH_DIRENT(de, d, return -errno) { - - dirent_ensure_type(d, de); - - if (de->d_type == DT_DIR) { - _cleanup_free_ char *p = NULL; - int nfd, q; - - nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); - if (nfd < 0) { - if (errno == ENOENT) - continue; - - if (r == 0) - r = -errno; - continue; - } - - p = path_make_absolute(de->d_name, path); - if (!p) { - safe_close(nfd); - return -ENOMEM; - } - - /* This will close nfd, regardless whether it succeeds or not */ - q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, lp, dry_run, restart, changes, n_changes); - if (q < 0 && r == 0) - r = q; - - } else if (de->d_type == DT_LNK) { - _cleanup_free_ char *p = NULL, *dest = NULL; - const char *rp; - bool found; - int q; - - if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) - continue; - - p = path_make_absolute(de->d_name, path); - if (!p) - return -ENOMEM; - path_kill_slashes(p); - - q = readlink_malloc(p, &dest); - if (q == -ENOENT) - continue; - if (q < 0) { - if (r == 0) - r = q; - continue; - } - - /* We remove all links pointing to a file or path that is marked, as well as all files sharing - * the same name as a file that is marked. */ - - found = set_contains(remove_symlinks_to, dest) || - set_contains(remove_symlinks_to, basename(dest)) || - set_contains(remove_symlinks_to, de->d_name); - - if (!found) - continue; - - if (!dry_run) { - if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) { - if (r == 0) - r = -errno; - unit_file_changes_add(changes, n_changes, -errno, p, NULL); - continue; - } - - (void) rmdir_parents(p, config_path); - } - - unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, p, NULL); - - /* Now, remember the full path (but with the root prefix removed) of - * the symlink we just removed, and remove any symlinks to it, too. */ - - rp = skip_root(lp, p); - q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p); - if (q < 0) - return q; - if (q > 0 && !dry_run) - *restart = true; - } - } - - return r; -} - -static int remove_marked_symlinks( - Set *remove_symlinks_to, - const char *config_path, - const LookupPaths *lp, - bool dry_run, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_close_ int fd = -1; - bool restart; - int r = 0; - - assert(config_path); - assert(lp); - - if (set_size(remove_symlinks_to) <= 0) - return 0; - - fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); - if (fd < 0) - return errno == ENOENT ? 0 : -errno; - - do { - int q, cfd; - restart = false; - - cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3); - if (cfd < 0) - return -errno; - - /* This takes possession of cfd and closes it */ - q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, lp, dry_run, &restart, changes, n_changes); - if (r == 0) - r = q; - } while (restart); - - return r; -} - -static int find_symlinks_fd( - const char *root_dir, - const char *name, - int fd, - const char *path, - const char *config_path, - const LookupPaths *lp, - bool *same_name_link) { - - _cleanup_closedir_ DIR *d = NULL; - struct dirent *de; - int r = 0; - - assert(name); - assert(fd >= 0); - assert(path); - assert(config_path); - assert(lp); - assert(same_name_link); - - d = fdopendir(fd); - if (!d) { - safe_close(fd); - return -errno; - } - - FOREACH_DIRENT(de, d, return -errno) { - - dirent_ensure_type(d, de); - - if (de->d_type == DT_DIR) { - _cleanup_free_ char *p = NULL; - int nfd, q; - - nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); - if (nfd < 0) { - if (errno == ENOENT) - continue; - - if (r == 0) - r = -errno; - continue; - } - - p = path_make_absolute(de->d_name, path); - if (!p) { - safe_close(nfd); - return -ENOMEM; - } - - /* This will close nfd, regardless whether it succeeds or not */ - q = find_symlinks_fd(root_dir, name, nfd, p, config_path, lp, same_name_link); - if (q > 0) - return 1; - if (r == 0) - r = q; - - } else if (de->d_type == DT_LNK) { - _cleanup_free_ char *p = NULL, *dest = NULL; - bool found_path, found_dest, b = false; - int q; - - /* Acquire symlink name */ - p = path_make_absolute(de->d_name, path); - if (!p) - return -ENOMEM; - - /* Acquire symlink destination */ - q = readlink_malloc(p, &dest); - if (q == -ENOENT) - continue; - if (q < 0) { - if (r == 0) - r = q; - continue; - } - - /* Make absolute */ - if (!path_is_absolute(dest)) { - char *x; - - x = prefix_root(root_dir, dest); - if (!x) - return -ENOMEM; - - free(dest); - dest = x; - } - - /* Check if the symlink itself matches what we - * are looking for */ - if (path_is_absolute(name)) - found_path = path_equal(p, name); - else - found_path = streq(de->d_name, name); - - /* Check if what the symlink points to - * matches what we are looking for */ - if (path_is_absolute(name)) - found_dest = path_equal(dest, name); - else - found_dest = streq(basename(dest), name); - - if (found_path && found_dest) { - _cleanup_free_ char *t = NULL; - - /* Filter out same name links in the main - * config path */ - t = path_make_absolute(name, config_path); - if (!t) - return -ENOMEM; - - b = path_equal(t, p); - } - - if (b) - *same_name_link = true; - else if (found_path || found_dest) - return 1; - } - } - - return r; -} - -static int find_symlinks( - const char *root_dir, - const char *name, - const char *config_path, - const LookupPaths *lp, - bool *same_name_link) { - - int fd; - - assert(name); - assert(config_path); - assert(same_name_link); - - fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); - if (fd < 0) { - if (IN_SET(errno, ENOENT, ENOTDIR, EACCES)) - return 0; - return -errno; - } - - /* This takes possession of fd and closes it */ - return find_symlinks_fd(root_dir, name, fd, config_path, config_path, lp, same_name_link); -} - -static int find_symlinks_in_scope( - UnitFileScope scope, - const LookupPaths *paths, - const char *name, - UnitFileState *state) { - - bool same_name_link_runtime = false, same_name_link = false; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - assert(paths); - assert(name); - - /* First look in the persistent config path */ - r = find_symlinks(paths->root_dir, name, paths->persistent_config, paths, &same_name_link); - if (r < 0) - return r; - if (r > 0) { - *state = UNIT_FILE_ENABLED; - return r; - } - - /* Then look in runtime config path */ - r = find_symlinks(paths->root_dir, name, paths->runtime_config, paths, &same_name_link_runtime); - if (r < 0) - return r; - if (r > 0) { - *state = UNIT_FILE_ENABLED_RUNTIME; - return r; - } - - /* Hmm, we didn't find it, but maybe we found the same name - * link? */ - if (same_name_link) { - *state = UNIT_FILE_LINKED; - return 1; - } - if (same_name_link_runtime) { - *state = UNIT_FILE_LINKED_RUNTIME; - return 1; - } - - return 0; -} - -static void install_info_free(UnitFileInstallInfo *i) { - - if (!i) - return; - - free(i->name); - free(i->path); - strv_free(i->aliases); - strv_free(i->wanted_by); - strv_free(i->required_by); - strv_free(i->also); - free(i->default_instance); - free(i->symlink_target); - free(i); -} - -static OrderedHashmap* install_info_hashmap_free(OrderedHashmap *m) { - UnitFileInstallInfo *i; - - if (!m) - return NULL; - - while ((i = ordered_hashmap_steal_first(m))) - install_info_free(i); - - return ordered_hashmap_free(m); -} - -static void install_context_done(InstallContext *c) { - assert(c); - - c->will_process = install_info_hashmap_free(c->will_process); - c->have_processed = install_info_hashmap_free(c->have_processed); -} - -static UnitFileInstallInfo *install_info_find(InstallContext *c, const char *name) { - UnitFileInstallInfo *i; - - i = ordered_hashmap_get(c->have_processed, name); - if (i) - return i; - - return ordered_hashmap_get(c->will_process, name); -} - -static int install_info_may_process( - UnitFileInstallInfo *i, - const LookupPaths *paths, - UnitFileChange **changes, - unsigned *n_changes) { - assert(i); - assert(paths); - - /* Checks whether the loaded unit file is one we should process, or is masked, - * transient or generated and thus not subject to enable/disable operations. */ - - if (i->type == UNIT_FILE_TYPE_MASKED) { - unit_file_changes_add(changes, n_changes, -ERFKILL, i->path, NULL); - return -ERFKILL; - } - if (path_is_generator(paths, i->path) || - path_is_transient(paths, i->path)) { - unit_file_changes_add(changes, n_changes, -EADDRNOTAVAIL, i->path, NULL); - return -EADDRNOTAVAIL; - } - - return 0; -} - -/** - * Adds a new UnitFileInstallInfo entry under name in the InstallContext.will_process - * hashmap, or retrieves the existing one if already present. - * - * Returns negative on error, 0 if the unit was already known, 1 otherwise. - */ -static int install_info_add( - InstallContext *c, - const char *name, - const char *path, - bool auxiliary, - UnitFileInstallInfo **ret) { - - UnitFileInstallInfo *i = NULL; - int r; - - assert(c); - assert(name || path); - - if (!name) - name = basename(path); - - if (!unit_name_is_valid(name, UNIT_NAME_ANY)) - return -EINVAL; - - i = install_info_find(c, name); - if (i) { - i->auxiliary = i->auxiliary && auxiliary; - - if (ret) - *ret = i; - return 0; - } - - r = ordered_hashmap_ensure_allocated(&c->will_process, &string_hash_ops); - if (r < 0) - return r; - - i = new0(UnitFileInstallInfo, 1); - if (!i) - return -ENOMEM; - i->type = _UNIT_FILE_TYPE_INVALID; - i->auxiliary = auxiliary; - - i->name = strdup(name); - if (!i->name) { - r = -ENOMEM; - goto fail; - } - - if (path) { - i->path = strdup(path); - if (!i->path) { - r = -ENOMEM; - goto fail; - } - } - - r = ordered_hashmap_put(c->will_process, i->name, i); - if (r < 0) - goto fail; - - if (ret) - *ret = i; - - return 1; - -fail: - install_info_free(i); - return r; -} - -static int config_parse_alias( - 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 *name; - UnitType type; - - assert(filename); - assert(lvalue); - assert(rvalue); - - name = basename(filename); - type = unit_name_to_type(name); - if (!unit_type_may_alias(type)) - return log_syntax(unit, LOG_WARNING, filename, line, 0, - "Alias= is not allowed for %s units, ignoring.", - unit_type_to_string(type)); - - return config_parse_strv(unit, filename, line, section, section_line, - lvalue, ltype, rvalue, data, userdata); -} - -static int config_parse_also( - 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) { - - UnitFileInstallInfo *info = userdata, *alsoinfo = NULL; - InstallContext *c = data; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - - for (;;) { - _cleanup_free_ char *word = NULL, *printed = NULL; - - r = extract_first_word(&rvalue, &word, NULL, 0); - if (r < 0) - return r; - if (r == 0) - break; - - r = install_full_printf(info, word, &printed); - if (r < 0) - return r; - - if (!unit_name_is_valid(printed, UNIT_NAME_ANY)) - return -EINVAL; - - r = install_info_add(c, printed, NULL, true, &alsoinfo); - if (r < 0) - return r; - - r = strv_push(&info->also, printed); - if (r < 0) - return r; - - printed = NULL; - } - - return 0; -} - -static int config_parse_default_instance( - 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) { - - UnitFileInstallInfo *i = data; - const char *name; - _cleanup_free_ char *printed = NULL; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - - name = basename(filename); - if (unit_name_is_valid(name, UNIT_NAME_INSTANCE)) - /* When enabling an instance, we might be using a template unit file, - * but we should ignore DefaultInstance silently. */ - return 0; - if (!unit_name_is_valid(name, UNIT_NAME_TEMPLATE)) - return log_syntax(unit, LOG_WARNING, filename, line, 0, - "DefaultInstance= only makes sense for template units, ignoring."); - - r = install_full_printf(i, rvalue, &printed); - if (r < 0) - return r; - - if (!unit_instance_is_valid(printed)) - return -EINVAL; - - return free_and_replace(i->default_instance, printed); -} - -static int unit_file_load( - InstallContext *c, - UnitFileInstallInfo *info, - const char *path, - SearchFlags flags) { - - const ConfigTableItem items[] = { - { "Install", "Alias", config_parse_alias, 0, &info->aliases }, - { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, - { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, - { "Install", "DefaultInstance", config_parse_default_instance, 0, info }, - { "Install", "Also", config_parse_also, 0, c }, - {} - }; - - const char *name; - UnitType type; - _cleanup_fclose_ FILE *f = NULL; - _cleanup_close_ int fd = -1; - struct stat st; - int r; - - assert(info); - assert(path); - - name = basename(path); - type = unit_name_to_type(name); - if (unit_name_is_valid(name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) && - !unit_type_may_template(type)) - return log_error_errno(EINVAL, "Unit type %s cannot be templated.", unit_type_to_string(type)); - - if (!(flags & SEARCH_LOAD)) { - r = lstat(path, &st); - if (r < 0) - return -errno; - - if (null_or_empty(&st)) - info->type = UNIT_FILE_TYPE_MASKED; - else if (S_ISREG(st.st_mode)) - info->type = UNIT_FILE_TYPE_REGULAR; - else if (S_ISLNK(st.st_mode)) - return -ELOOP; - else if (S_ISDIR(st.st_mode)) - return -EISDIR; - else - return -ENOTTY; - - return 0; - } - - /* c is only needed if we actually load the file */ - assert(c); - - fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); - if (fd < 0) - return -errno; - if (fstat(fd, &st) < 0) - return -errno; - if (null_or_empty(&st)) { - info->type = UNIT_FILE_TYPE_MASKED; - return 0; - } - if (S_ISDIR(st.st_mode)) - return -EISDIR; - if (!S_ISREG(st.st_mode)) - return -ENOTTY; - - f = fdopen(fd, "re"); - if (!f) - return -errno; - fd = -1; - - r = config_parse(NULL, path, f, - NULL, - config_item_table_lookup, items, - true, true, false, info); - if (r < 0) - return log_debug_errno(r, "Failed to parse %s: %m", info->name); - - info->type = UNIT_FILE_TYPE_REGULAR; - - return - (int) strv_length(info->aliases) + - (int) strv_length(info->wanted_by) + - (int) strv_length(info->required_by); -} - -static int unit_file_load_or_readlink( - InstallContext *c, - UnitFileInstallInfo *info, - const char *path, - const char *root_dir, - SearchFlags flags) { - - _cleanup_free_ char *target = NULL; - int r; - - r = unit_file_load(c, info, path, flags); - if (r != -ELOOP) - return r; - - /* This is a symlink, let's read it. */ - - r = readlink_malloc(path, &target); - if (r < 0) - return r; - - if (path_equal(target, "/dev/null")) - info->type = UNIT_FILE_TYPE_MASKED; - else { - const char *bn; - UnitType a, b; - - bn = basename(target); - - if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN)) { - - if (!unit_name_is_valid(bn, UNIT_NAME_PLAIN)) - return -EINVAL; - - } else if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { - - if (!unit_name_is_valid(bn, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) - return -EINVAL; - - } else if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE)) { - - if (!unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) - return -EINVAL; - } else - return -EINVAL; - - /* Enforce that the symlink destination does not - * change the unit file type. */ - - a = unit_name_to_type(info->name); - b = unit_name_to_type(bn); - if (a < 0 || b < 0 || a != b) - return -EINVAL; - - if (path_is_absolute(target)) - /* This is an absolute path, prefix the root so that we always deal with fully qualified paths */ - info->symlink_target = prefix_root(root_dir, target); - else - /* This is a relative path, take it relative to the dir the symlink is located in. */ - info->symlink_target = file_in_same_dir(path, target); - if (!info->symlink_target) - return -ENOMEM; - - info->type = UNIT_FILE_TYPE_SYMLINK; - } - - return 0; -} - -static int unit_file_search( - InstallContext *c, - UnitFileInstallInfo *info, - const LookupPaths *paths, - SearchFlags flags) { - - _cleanup_free_ char *template = NULL; - char **p; - int r; - - assert(info); - assert(paths); - - /* Was this unit already loaded? */ - if (info->type != _UNIT_FILE_TYPE_INVALID) - return 0; - - if (info->path) - return unit_file_load_or_readlink(c, info, info->path, paths->root_dir, flags); - - assert(info->name); - - STRV_FOREACH(p, paths->search_path) { - _cleanup_free_ char *path = NULL; - - path = strjoin(*p, "/", info->name, NULL); - if (!path) - return -ENOMEM; - - r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); - if (r >= 0) { - info->path = path; - path = NULL; - return r; - } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) - return r; - } - - if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { - /* Unit file doesn't exist, however instance - * enablement was requested. We will check if it is - * possible to load template unit file. */ - - r = unit_name_template(info->name, &template); - if (r < 0) - return r; - - STRV_FOREACH(p, paths->search_path) { - _cleanup_free_ char *path = NULL; - - path = strjoin(*p, "/", template, NULL); - if (!path) - return -ENOMEM; - - r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); - if (r >= 0) { - info->path = path; - path = NULL; - return r; - } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) - return r; - } - } - - log_debug("Cannot find unit %s%s%s.", info->name, template ? " or " : "", strempty(template)); - return -ENOENT; -} - -static int install_info_follow( - InstallContext *c, - UnitFileInstallInfo *i, - const char *root_dir, - SearchFlags flags) { - - assert(c); - assert(i); - - if (i->type != UNIT_FILE_TYPE_SYMLINK) - return -EINVAL; - if (!i->symlink_target) - return -EINVAL; - - /* If the basename doesn't match, the caller should add a - * complete new entry for this. */ - - if (!streq(basename(i->symlink_target), i->name)) - return -EXDEV; - - free_and_replace(i->path, i->symlink_target); - i->type = _UNIT_FILE_TYPE_INVALID; - - return unit_file_load_or_readlink(c, i, i->path, root_dir, flags); -} - -/** - * Search for the unit file. If the unit name is a symlink, follow the symlink to the - * target, maybe more than once. Propagate the instance name if present. - */ -static int install_info_traverse( - UnitFileScope scope, - InstallContext *c, - const LookupPaths *paths, - UnitFileInstallInfo *start, - SearchFlags flags, - UnitFileInstallInfo **ret) { - - UnitFileInstallInfo *i; - unsigned k = 0; - int r; - - assert(paths); - assert(start); - assert(c); - - r = unit_file_search(c, start, paths, flags); - if (r < 0) - return r; - - i = start; - while (i->type == UNIT_FILE_TYPE_SYMLINK) { - /* Follow the symlink */ - - if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX) - return -ELOOP; - - if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) { - r = path_is_config(paths, i->path); - if (r < 0) - return r; - if (r > 0) - return -ELOOP; - } - - r = install_info_follow(c, i, paths->root_dir, flags); - if (r == -EXDEV) { - _cleanup_free_ char *buffer = NULL; - const char *bn; - - /* Target has a different name, create a new - * install info object for that, and continue - * with that. */ - - bn = basename(i->symlink_target); - - if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) && - unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) { - - _cleanup_free_ char *instance = NULL; - - r = unit_name_to_instance(i->name, &instance); - if (r < 0) - return r; - - r = unit_name_replace_instance(bn, instance, &buffer); - if (r < 0) - return r; - - bn = buffer; - } - - r = install_info_add(c, bn, NULL, false, &i); - if (r < 0) - return r; - - /* Try again, with the new target we found. */ - r = unit_file_search(c, i, paths, flags); - if (r == -ENOENT) - /* Translate error code to highlight this specific case */ - return -ENOLINK; - } - - if (r < 0) - return r; - } - - if (ret) - *ret = i; - - return 0; -} - -/** - * Call install_info_add() with name_or_path as the path (if name_or_path starts with "/") - * or the name (otherwise). root_dir is prepended to the path. - */ -static int install_info_add_auto( - InstallContext *c, - const LookupPaths *paths, - const char *name_or_path, - UnitFileInstallInfo **ret) { - - assert(c); - assert(name_or_path); - - if (path_is_absolute(name_or_path)) { - const char *pp; - - pp = prefix_roota(paths->root_dir, name_or_path); - - return install_info_add(c, NULL, pp, false, ret); - } else - return install_info_add(c, name_or_path, NULL, false, ret); -} - -static int install_info_discover( - UnitFileScope scope, - InstallContext *c, - const LookupPaths *paths, - const char *name, - SearchFlags flags, - UnitFileInstallInfo **ret, - UnitFileChange **changes, - unsigned *n_changes) { - - UnitFileInstallInfo *i; - int r; - - assert(c); - assert(paths); - assert(name); - - r = install_info_add_auto(c, paths, name, &i); - if (r >= 0) - r = install_info_traverse(scope, c, paths, i, flags, ret); - - if (r < 0) - unit_file_changes_add(changes, n_changes, r, name, NULL); - return r; -} - -static int install_info_symlink_alias( - UnitFileInstallInfo *i, - const LookupPaths *paths, - const char *config_path, - bool force, - UnitFileChange **changes, - unsigned *n_changes) { - - char **s; - int r = 0, q; - - assert(i); - assert(paths); - assert(config_path); - - STRV_FOREACH(s, i->aliases) { - _cleanup_free_ char *alias_path = NULL, *dst = NULL; - - q = install_full_printf(i, *s, &dst); - if (q < 0) - return q; - - alias_path = path_make_absolute(dst, config_path); - if (!alias_path) - return -ENOMEM; - - q = create_symlink(paths, i->path, alias_path, force, changes, n_changes); - if (r == 0) - r = q; - } - - return r; -} - -static int install_info_symlink_wants( - UnitFileInstallInfo *i, - const LookupPaths *paths, - const char *config_path, - char **list, - const char *suffix, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_free_ char *buf = NULL; - const char *n; - char **s; - int r = 0, q; - - assert(i); - assert(paths); - assert(config_path); - - if (strv_isempty(list)) - return 0; - - if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) { - UnitFileInstallInfo instance = { - .type = _UNIT_FILE_TYPE_INVALID, - }; - _cleanup_free_ char *path = NULL; - - /* Don't install any symlink if there's no default - * instance configured */ - - if (!i->default_instance) - return 0; - - r = unit_name_replace_instance(i->name, i->default_instance, &buf); - if (r < 0) - return r; - - instance.name = buf; - r = unit_file_search(NULL, &instance, paths, SEARCH_FOLLOW_CONFIG_SYMLINKS); - if (r < 0) - return r; - - path = instance.path; - instance.path = NULL; - - if (instance.type == UNIT_FILE_TYPE_MASKED) { - unit_file_changes_add(changes, n_changes, -ERFKILL, path, NULL); - return -ERFKILL; - } - - n = buf; - } else - n = i->name; - - STRV_FOREACH(s, list) { - _cleanup_free_ char *path = NULL, *dst = NULL; - - q = install_full_printf(i, *s, &dst); - if (q < 0) - return q; - - if (!unit_name_is_valid(dst, UNIT_NAME_ANY)) { - r = -EINVAL; - continue; - } - - path = strjoin(config_path, "/", dst, suffix, n, NULL); - if (!path) - return -ENOMEM; - - q = create_symlink(paths, i->path, path, true, changes, n_changes); - if (r == 0) - r = q; - } - - return r; -} - -static int install_info_symlink_link( - UnitFileInstallInfo *i, - const LookupPaths *paths, - const char *config_path, - bool force, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_free_ char *path = NULL; - int r; - - assert(i); - assert(paths); - assert(config_path); - assert(i->path); - - r = in_search_path(paths, i->path); - if (r < 0) - return r; - if (r > 0) - return 0; - - path = strjoin(config_path, "/", i->name, NULL); - if (!path) - return -ENOMEM; - - return create_symlink(paths, i->path, path, force, changes, n_changes); -} - -static int install_info_apply( - UnitFileInstallInfo *i, - const LookupPaths *paths, - const char *config_path, - bool force, - UnitFileChange **changes, - unsigned *n_changes) { - - int r, q; - - assert(i); - assert(paths); - assert(config_path); - - if (i->type != UNIT_FILE_TYPE_REGULAR) - return 0; - - r = install_info_symlink_alias(i, paths, config_path, force, changes, n_changes); - - q = install_info_symlink_wants(i, paths, config_path, i->wanted_by, ".wants/", changes, n_changes); - if (r == 0) - r = q; - - q = install_info_symlink_wants(i, paths, config_path, i->required_by, ".requires/", changes, n_changes); - if (r == 0) - r = q; - - q = install_info_symlink_link(i, paths, config_path, force, changes, n_changes); - /* Do not count links to the unit file towards the "carries_install_info" count */ - if (r == 0 && q < 0) - r = q; - - return r; -} - -static int install_context_apply( - UnitFileScope scope, - InstallContext *c, - const LookupPaths *paths, - const char *config_path, - bool force, - SearchFlags flags, - UnitFileChange **changes, - unsigned *n_changes) { - - UnitFileInstallInfo *i; - int r; - - assert(c); - assert(paths); - assert(config_path); - - if (ordered_hashmap_isempty(c->will_process)) - return 0; - - r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); - if (r < 0) - return r; - - r = 0; - while ((i = ordered_hashmap_first(c->will_process))) { - int q; - - q = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); - if (q < 0) - return q; - - r = install_info_traverse(scope, c, paths, i, flags, NULL); - if (r < 0) { - unit_file_changes_add(changes, n_changes, r, i->name, NULL); - return r; - } - - /* We can attempt to process a masked unit when a different unit - * that we were processing specifies it in Also=. */ - if (i->type == UNIT_FILE_TYPE_MASKED) { - unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path, NULL); - if (r >= 0) - /* Assume that something *could* have been enabled here, - * avoid "empty [Install] section" warning. */ - r += 1; - continue; - } - - if (i->type != UNIT_FILE_TYPE_REGULAR) - continue; - - q = install_info_apply(i, paths, config_path, force, changes, n_changes); - if (r >= 0) { - if (q < 0) - r = q; - else - r += q; - } - } - - return r; -} - -static int install_context_mark_for_removal( - UnitFileScope scope, - InstallContext *c, - const LookupPaths *paths, - Set **remove_symlinks_to, - const char *config_path) { - - UnitFileInstallInfo *i; - int r; - - assert(c); - assert(paths); - assert(config_path); - - /* Marks all items for removal */ - - if (ordered_hashmap_isempty(c->will_process)) - return 0; - - r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); - if (r < 0) - return r; - - while ((i = ordered_hashmap_first(c->will_process))) { - - r = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); - if (r < 0) - return r; - - r = install_info_traverse(scope, c, paths, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); - if (r == -ENOLINK) { - log_debug_errno(r, "Name %s leads to a dangling symlink, ignoring.", i->name); - continue; - } else if (r == -ENOENT && i->auxiliary) { - /* some unit specified in Also= or similar is missing */ - log_debug_errno(r, "Auxiliary unit %s not found, ignoring.", i->name); - continue; - } else if (r < 0) - return log_debug_errno(r, "Failed to find unit %s: %m", i->name); - - if (i->type != UNIT_FILE_TYPE_REGULAR) { - log_debug("Unit %s has type %s, ignoring.", - i->name, - unit_file_type_to_string(i->type) ?: "invalid"); - continue; - } - - r = mark_symlink_for_removal(remove_symlinks_to, i->name); - if (r < 0) - return r; - } - - return 0; -} - -int unit_file_mask( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - const char *config_path; - char **i; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; - - STRV_FOREACH(i, files) { - _cleanup_free_ char *path = NULL; - int q; - - if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) { - if (r == 0) - r = -EINVAL; - continue; - } - - path = path_make_absolute(*i, config_path); - if (!path) - return -ENOMEM; - - q = create_symlink(&paths, "/dev/null", path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); - if (q < 0 && r >= 0) - r = q; - } - - return r; -} - -int unit_file_unmask( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; - _cleanup_free_ char **todo = NULL; - size_t n_todo = 0, n_allocated = 0; - const char *config_path; - char **i; - bool dry_run; - int r, q; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; - dry_run = !!(flags & UNIT_FILE_DRY_RUN); - - STRV_FOREACH(i, files) { - _cleanup_free_ char *path = NULL; - - if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) - return -EINVAL; - - path = path_make_absolute(*i, config_path); - if (!path) - return -ENOMEM; - - r = null_or_empty_path(path); - if (r == -ENOENT) - continue; - if (r < 0) - return r; - if (r == 0) - continue; - - if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) - return -ENOMEM; - - todo[n_todo++] = *i; - } - - strv_uniq(todo); - - r = 0; - STRV_FOREACH(i, todo) { - _cleanup_free_ char *path = NULL; - const char *rp; - - path = path_make_absolute(*i, config_path); - if (!path) - return -ENOMEM; - - if (!dry_run && unlink(path) < 0) { - if (errno != ENOENT) { - if (r >= 0) - r = -errno; - unit_file_changes_add(changes, n_changes, -errno, path, NULL); - } - - continue; - } - - unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL); - - rp = skip_root(&paths, path); - q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path); - if (q < 0) - return q; - } - - q = remove_marked_symlinks(remove_symlinks_to, config_path, &paths, dry_run, changes, n_changes); - if (r >= 0) - r = q; - - return r; -} - -int unit_file_link( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_free_ char **todo = NULL; - size_t n_todo = 0, n_allocated = 0; - const char *config_path; - char **i; - int r, q; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; - - STRV_FOREACH(i, files) { - _cleanup_free_ char *full = NULL; - struct stat st; - char *fn; - - if (!path_is_absolute(*i)) - return -EINVAL; - - fn = basename(*i); - if (!unit_name_is_valid(fn, UNIT_NAME_ANY)) - return -EINVAL; - - full = prefix_root(paths.root_dir, *i); - if (!full) - return -ENOMEM; - - if (lstat(full, &st) < 0) - return -errno; - if (S_ISLNK(st.st_mode)) - return -ELOOP; - if (S_ISDIR(st.st_mode)) - return -EISDIR; - if (!S_ISREG(st.st_mode)) - return -ENOTTY; - - q = in_search_path(&paths, *i); - if (q < 0) - return q; - if (q > 0) - continue; - - if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) - return -ENOMEM; - - todo[n_todo++] = *i; - } - - strv_uniq(todo); - - r = 0; - STRV_FOREACH(i, todo) { - _cleanup_free_ char *new_path = NULL; - - new_path = path_make_absolute(basename(*i), config_path); - if (!new_path) - return -ENOMEM; - - q = create_symlink(&paths, *i, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); - if (q < 0 && r >= 0) - r = q; - } - - return r; -} - -static int path_shall_revert(const LookupPaths *paths, const char *path) { - int r; - - assert(paths); - assert(path); - - /* Checks whether the path is one where the drop-in directories shall be removed. */ - - r = path_is_config(paths, path); - if (r != 0) - return r; - - r = path_is_control(paths, path); - if (r != 0) - return r; - - return path_is_transient(paths, path); -} - -int unit_file_revert( - UnitFileScope scope, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_strv_free_ char **todo = NULL; - size_t n_todo = 0, n_allocated = 0; - char **i; - int r, q; - - /* Puts a unit file back into vendor state. This means: - * - * a) we remove all drop-in snippets added by the user ("config"), add to transient units ("transient"), and - * added via "systemctl set-property" ("control"), but not if the drop-in is generated ("generated"). - * - * c) if there's a vendor unit file (i.e. one in /usr) we remove any configured overriding unit files (i.e. in - * "config", but not in "transient" or "control" or even "generated"). - * - * We remove all that in both the runtime and the persistent directories, if that applies. - */ - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - STRV_FOREACH(i, files) { - bool has_vendor = false; - char **p; - - if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) - return -EINVAL; - - STRV_FOREACH(p, paths.search_path) { - _cleanup_free_ char *path = NULL, *dropin = NULL; - struct stat st; - - path = path_make_absolute(*i, *p); - if (!path) - return -ENOMEM; - - r = lstat(path, &st); - if (r < 0) { - if (errno != ENOENT) - return -errno; - } else if (S_ISREG(st.st_mode)) { - /* Check if there's a vendor version */ - r = path_is_vendor(&paths, path); - if (r < 0) - return r; - if (r > 0) - has_vendor = true; - } - - dropin = strappend(path, ".d"); - if (!dropin) - return -ENOMEM; - - r = lstat(dropin, &st); - if (r < 0) { - if (errno != ENOENT) - return -errno; - } else if (S_ISDIR(st.st_mode)) { - /* Remove the drop-ins */ - r = path_shall_revert(&paths, dropin); - if (r < 0) - return r; - if (r > 0) { - if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) - return -ENOMEM; - - todo[n_todo++] = dropin; - dropin = NULL; - } - } - } - - if (!has_vendor) - continue; - - /* OK, there's a vendor version, hence drop all configuration versions */ - STRV_FOREACH(p, paths.search_path) { - _cleanup_free_ char *path = NULL; - struct stat st; - - path = path_make_absolute(*i, *p); - if (!path) - return -ENOMEM; - - r = lstat(path, &st); - if (r < 0) { - if (errno != ENOENT) - return -errno; - } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { - r = path_is_config(&paths, path); - if (r < 0) - return r; - if (r > 0) { - if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) - return -ENOMEM; - - todo[n_todo++] = path; - path = NULL; - } - } - } - } - - strv_uniq(todo); - - r = 0; - STRV_FOREACH(i, todo) { - _cleanup_strv_free_ char **fs = NULL; - const char *rp; - char **j; - - (void) get_files_in_directory(*i, &fs); - - q = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL); - if (q < 0 && q != -ENOENT && r >= 0) { - r = q; - continue; - } - - STRV_FOREACH(j, fs) { - _cleanup_free_ char *t = NULL; - - t = strjoin(*i, "/", *j, NULL); - if (!t) - return -ENOMEM; - - unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, t, NULL); - } - - unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, *i, NULL); - - rp = skip_root(&paths, *i); - q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: *i); - if (q < 0) - return q; - } - - q = remove_marked_symlinks(remove_symlinks_to, paths.runtime_config, &paths, false, changes, n_changes); - if (r >= 0) - r = q; - - q = remove_marked_symlinks(remove_symlinks_to, paths.persistent_config, &paths, false, changes, n_changes); - if (r >= 0) - r = q; - - return r; -} - -int unit_file_add_dependency( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - const char *target, - UnitDependency dep, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_(install_context_done) InstallContext c = {}; - UnitFileInstallInfo *i, *target_info; - const char *config_path; - char **f; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - assert(target); - - if (!IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES)) - return -EINVAL; - - if (!unit_name_is_valid(target, UNIT_NAME_ANY)) - return -EINVAL; - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; - - r = install_info_discover(scope, &c, &paths, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, - &target_info, changes, n_changes); - if (r < 0) - return r; - r = install_info_may_process(target_info, &paths, changes, n_changes); - if (r < 0) - return r; - - assert(target_info->type == UNIT_FILE_TYPE_REGULAR); - - STRV_FOREACH(f, files) { - char ***l; - - r = install_info_discover(scope, &c, &paths, *f, SEARCH_FOLLOW_CONFIG_SYMLINKS, - &i, changes, n_changes); - if (r < 0) - return r; - r = install_info_may_process(i, &paths, changes, n_changes); - if (r < 0) - return r; - - assert(i->type == UNIT_FILE_TYPE_REGULAR); - - /* We didn't actually load anything from the unit - * file, but instead just add in our new symlink to - * create. */ - - if (dep == UNIT_WANTS) - l = &i->wanted_by; - else - l = &i->required_by; - - strv_free(*l); - *l = strv_new(target_info->name, NULL); - if (!*l) - return -ENOMEM; - } - - return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes); -} - -int unit_file_enable( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_(install_context_done) InstallContext c = {}; - const char *config_path; - UnitFileInstallInfo *i; - char **f; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; - - STRV_FOREACH(f, files) { - r = install_info_discover(scope, &c, &paths, *f, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, - &i, changes, n_changes); - if (r < 0) - return r; - r = install_info_may_process(i, &paths, changes, n_changes); - if (r < 0) - return r; - - assert(i->type == UNIT_FILE_TYPE_REGULAR); - } - - /* This will return the number of symlink rules that were - supposed to be created, not the ones actually created. This - is useful to determine whether the passed files had any - installation data at all. */ - - return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_LOAD, changes, n_changes); -} - -int unit_file_disable( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_(install_context_done) InstallContext c = {}; - _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; - const char *config_path; - char **i; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; - - STRV_FOREACH(i, files) { - if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) - return -EINVAL; - - r = install_info_add(&c, *i, NULL, false, NULL); - if (r < 0) - return r; - } - - r = install_context_mark_for_removal(scope, &c, &paths, &remove_symlinks_to, config_path); - if (r < 0) - return r; - - return remove_marked_symlinks(remove_symlinks_to, config_path, &paths, !!(flags & UNIT_FILE_DRY_RUN), changes, n_changes); -} - -int unit_file_reenable( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes) { - - char **n; - int r; - size_t l, i; - - /* First, we invoke the disable command with only the basename... */ - l = strv_length(files); - n = newa(char*, l+1); - for (i = 0; i < l; i++) - n[i] = basename(files[i]); - n[i] = NULL; - - r = unit_file_disable(scope, flags, root_dir, n, changes, n_changes); - if (r < 0) - return r; - - /* But the enable command with the full name */ - return unit_file_enable(scope, flags, root_dir, files, changes, n_changes); -} - -int unit_file_set_default( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - const char *name, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_(install_context_done) InstallContext c = {}; - UnitFileInstallInfo *i; - const char *new_path; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - assert(name); - - if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */ - return -EINVAL; - if (streq(name, SPECIAL_DEFAULT_TARGET)) - return -EINVAL; - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - r = install_info_discover(scope, &c, &paths, name, 0, &i, changes, n_changes); - if (r < 0) - return r; - r = install_info_may_process(i, &paths, changes, n_changes); - if (r < 0) - return r; - - new_path = strjoina(paths.persistent_config, "/" SPECIAL_DEFAULT_TARGET); - return create_symlink(&paths, i->path, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); -} - -int unit_file_get_default( - UnitFileScope scope, - const char *root_dir, - char **name) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_(install_context_done) InstallContext c = {}; - UnitFileInstallInfo *i; - char *n; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - assert(name); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - r = install_info_discover(scope, &c, &paths, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS, - &i, NULL, NULL); - if (r < 0) - return r; - r = install_info_may_process(i, &paths, NULL, 0); - if (r < 0) - return r; - - n = strdup(i->name); - if (!n) - return -ENOMEM; - - *name = n; - return 0; -} - -static int unit_file_lookup_state( - UnitFileScope scope, - const LookupPaths *paths, - const char *name, - UnitFileState *ret) { - - _cleanup_(install_context_done) InstallContext c = {}; - UnitFileInstallInfo *i; - UnitFileState state; - int r; - - assert(paths); - assert(name); - - if (!unit_name_is_valid(name, UNIT_NAME_ANY)) - return -EINVAL; - - r = install_info_discover(scope, &c, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, - &i, NULL, NULL); - if (r < 0) - return r; - - /* Shortcut things, if the caller just wants to know if this unit exists. */ - if (!ret) - return 0; - - switch (i->type) { - - case UNIT_FILE_TYPE_MASKED: - r = path_is_runtime(paths, i->path); - if (r < 0) - return r; - - state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; - break; - - case UNIT_FILE_TYPE_REGULAR: - r = path_is_generator(paths, i->path); - if (r < 0) - return r; - if (r > 0) { - state = UNIT_FILE_GENERATED; - break; - } - - r = path_is_transient(paths, i->path); - if (r < 0) - return r; - if (r > 0) { - state = UNIT_FILE_TRANSIENT; - break; - } - - r = find_symlinks_in_scope(scope, paths, i->name, &state); - if (r < 0) - return r; - if (r == 0) { - if (UNIT_FILE_INSTALL_INFO_HAS_RULES(i)) - state = UNIT_FILE_DISABLED; - else if (UNIT_FILE_INSTALL_INFO_HAS_ALSO(i)) - state = UNIT_FILE_INDIRECT; - else - state = UNIT_FILE_STATIC; - } - - break; - - default: - assert_not_reached("Unexpect unit file type."); - } - - *ret = state; - return 0; -} - -int unit_file_get_state( - UnitFileScope scope, - const char *root_dir, - const char *name, - UnitFileState *ret) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - assert(name); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - return unit_file_lookup_state(scope, &paths, name, ret); -} - -int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name) { - _cleanup_(install_context_done) InstallContext c = {}; - int r; - - assert(paths); - assert(name); - - if (!unit_name_is_valid(name, UNIT_NAME_ANY)) - return -EINVAL; - - r = install_info_discover(scope, &c, paths, name, 0, NULL, NULL, NULL); - if (r == -ENOENT) - return 0; - if (r < 0) - return r; - - return 1; -} - -static int read_presets(UnitFileScope scope, const char *root_dir, Presets *presets) { - _cleanup_(presets_freep) Presets ps = {}; - size_t n_allocated = 0; - _cleanup_strv_free_ char **files = NULL; - char **p; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - assert(presets); - - if (scope == UNIT_FILE_SYSTEM) - r = conf_files_list(&files, ".preset", root_dir, - "/etc/systemd/system-preset", - "/usr/local/lib/systemd/system-preset", - "/usr/lib/systemd/system-preset", -#ifdef HAVE_SPLIT_USR - "/lib/systemd/system-preset", -#endif - NULL); - else if (scope == UNIT_FILE_GLOBAL) - r = conf_files_list(&files, ".preset", root_dir, - "/etc/systemd/user-preset", - "/usr/local/lib/systemd/user-preset", - "/usr/lib/systemd/user-preset", - NULL); - else { - *presets = (Presets){}; - - return 0; - } - - if (r < 0) - return r; - - STRV_FOREACH(p, files) { - _cleanup_fclose_ FILE *f; - char line[LINE_MAX]; - int n = 0; - - f = fopen(*p, "re"); - if (!f) { - if (errno == ENOENT) - continue; - - return -errno; - } - - FOREACH_LINE(line, f, return -errno) { - PresetRule rule = {}; - const char *parameter; - char *l; - - l = strstrip(line); - n++; - - if (isempty(l)) - continue; - if (strchr(COMMENTS, *l)) - continue; - - parameter = first_word(l, "enable"); - if (parameter) { - char *pattern; - - pattern = strdup(parameter); - if (!pattern) - return -ENOMEM; - - rule = (PresetRule) { - .pattern = pattern, - .action = PRESET_ENABLE, - }; - } - - parameter = first_word(l, "disable"); - if (parameter) { - char *pattern; - - pattern = strdup(parameter); - if (!pattern) - return -ENOMEM; - - rule = (PresetRule) { - .pattern = pattern, - .action = PRESET_DISABLE, - }; - } - - if (rule.action) { - if (!GREEDY_REALLOC(ps.rules, n_allocated, ps.n_rules + 1)) - return -ENOMEM; - - ps.rules[ps.n_rules++] = rule; - continue; - } - - log_syntax(NULL, LOG_WARNING, *p, n, 0, "Couldn't parse line '%s'. Ignoring.", line); - } - } - - *presets = ps; - ps = (Presets){}; - - return 0; -} - -static int query_presets(const char *name, const Presets presets) { - PresetAction action = PRESET_UNKNOWN; - size_t i; - - if (!unit_name_is_valid(name, UNIT_NAME_ANY)) - return -EINVAL; - - for (i = 0; i < presets.n_rules; i++) - if (fnmatch(presets.rules[i].pattern, name, FNM_NOESCAPE) == 0) { - action = presets.rules[i].action; - break; - } - - switch (action) { - case PRESET_UNKNOWN: - log_debug("Preset files don't specify rule for %s. Enabling.", name); - return 1; - case PRESET_ENABLE: - log_debug("Preset files say enable %s.", name); - return 1; - case PRESET_DISABLE: - log_debug("Preset files say disable %s.", name); - return 0; - default: - assert_not_reached("invalid preset action"); - } -} - -int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name) { - _cleanup_(presets_freep) Presets presets = {}; - int r; - - r = read_presets(scope, root_dir, &presets); - if (r < 0) - return r; - - return query_presets(name, presets); -} - -static int execute_preset( - UnitFileScope scope, - InstallContext *plus, - InstallContext *minus, - const LookupPaths *paths, - const char *config_path, - char **files, - UnitFilePresetMode mode, - bool force, - UnitFileChange **changes, - unsigned *n_changes) { - - int r; - - assert(plus); - assert(minus); - assert(paths); - assert(config_path); - - if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) { - _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; - - r = install_context_mark_for_removal(scope, minus, paths, &remove_symlinks_to, config_path); - if (r < 0) - return r; - - r = remove_marked_symlinks(remove_symlinks_to, config_path, paths, false, changes, n_changes); - } else - r = 0; - - if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) { - int q; - - /* Returns number of symlinks that where supposed to be installed. */ - q = install_context_apply(scope, plus, paths, config_path, force, SEARCH_LOAD, changes, n_changes); - if (r >= 0) { - if (q < 0) - r = q; - else - r += q; - } - } - - return r; -} - -static int preset_prepare_one( - UnitFileScope scope, - InstallContext *plus, - InstallContext *minus, - LookupPaths *paths, - const char *name, - Presets presets, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_(install_context_done) InstallContext tmp = {}; - UnitFileInstallInfo *i; - int r; - - if (install_info_find(plus, name) || install_info_find(minus, name)) - return 0; - - r = install_info_discover(scope, &tmp, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, - &i, changes, n_changes); - if (r < 0) - return r; - if (!streq(name, i->name)) { - log_debug("Skipping %s because is an alias for %s", name, i->name); - return 0; - } - - r = query_presets(name, presets); - if (r < 0) - return r; - - if (r > 0) { - r = install_info_discover(scope, plus, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, - &i, changes, n_changes); - if (r < 0) - return r; - - r = install_info_may_process(i, paths, changes, n_changes); - if (r < 0) - return r; - } else - r = install_info_discover(scope, minus, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, - &i, changes, n_changes); - - return r; -} - -int unit_file_preset( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFilePresetMode mode, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_(presets_freep) Presets presets = {}; - const char *config_path; - char **i; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - assert(mode < _UNIT_FILE_PRESET_MAX); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; - - r = read_presets(scope, root_dir, &presets); - if (r < 0) - return r; - - STRV_FOREACH(i, files) { - r = preset_prepare_one(scope, &plus, &minus, &paths, *i, presets, changes, n_changes); - if (r < 0) - return r; - } - - return execute_preset(scope, &plus, &minus, &paths, config_path, files, mode, !!(flags & UNIT_FILE_FORCE), changes, n_changes); -} - -int unit_file_preset_all( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - UnitFilePresetMode mode, - UnitFileChange **changes, - unsigned *n_changes) { - - _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - _cleanup_(presets_freep) Presets presets = {}; - const char *config_path = NULL; - char **i; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - assert(mode < _UNIT_FILE_PRESET_MAX); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; - - r = read_presets(scope, root_dir, &presets); - if (r < 0) - return r; - - STRV_FOREACH(i, paths.search_path) { - _cleanup_closedir_ DIR *d = NULL; - struct dirent *de; - - d = opendir(*i); - if (!d) { - if (errno == ENOENT) - continue; - - return -errno; - } - - FOREACH_DIRENT(de, d, return -errno) { - - if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) - continue; - - dirent_ensure_type(d, de); - - if (!IN_SET(de->d_type, DT_LNK, DT_REG)) - continue; - - /* we don't pass changes[] in, because we want to handle errors on our own */ - r = preset_prepare_one(scope, &plus, &minus, &paths, de->d_name, presets, NULL, 0); - if (r == -ERFKILL) - r = unit_file_changes_add(changes, n_changes, - UNIT_FILE_IS_MASKED, de->d_name, NULL); - else if (r == -ENOLINK) - r = unit_file_changes_add(changes, n_changes, - UNIT_FILE_IS_DANGLING, de->d_name, NULL); - if (r < 0) - return r; - } - } - - return execute_preset(scope, &plus, &minus, &paths, config_path, NULL, mode, !!(flags & UNIT_FILE_FORCE), changes, n_changes); -} - -static void unit_file_list_free_one(UnitFileList *f) { - if (!f) - return; - - free(f->path); - free(f); -} - -Hashmap* unit_file_list_free(Hashmap *h) { - UnitFileList *i; - - while ((i = hashmap_steal_first(h))) - unit_file_list_free_one(i); - - return hashmap_free(h); -} - -DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free_one); - -int unit_file_get_list( - UnitFileScope scope, - const char *root_dir, - Hashmap *h, - char **states, - char **patterns) { - - _cleanup_lookup_paths_free_ LookupPaths paths = {}; - char **i; - int r; - - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - assert(h); - - r = lookup_paths_init(&paths, scope, 0, root_dir); - if (r < 0) - return r; - - STRV_FOREACH(i, paths.search_path) { - _cleanup_closedir_ DIR *d = NULL; - struct dirent *de; - - d = opendir(*i); - if (!d) { - if (errno == ENOENT) - continue; - if (IN_SET(errno, ENOTDIR, EACCES)) { - log_debug("Failed to open \"%s\": %m", *i); - continue; - } - - return -errno; - } - - FOREACH_DIRENT(de, d, return -errno) { - _cleanup_(unit_file_list_free_onep) UnitFileList *f = NULL; - - if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) - continue; - - if (!strv_fnmatch_or_empty(patterns, de->d_name, FNM_NOESCAPE)) - continue; - - if (hashmap_get(h, de->d_name)) - continue; - - dirent_ensure_type(d, de); - - if (!IN_SET(de->d_type, DT_LNK, DT_REG)) - continue; - - f = new0(UnitFileList, 1); - if (!f) - return -ENOMEM; - - f->path = path_make_absolute(de->d_name, *i); - if (!f->path) - return -ENOMEM; - - r = unit_file_lookup_state(scope, &paths, de->d_name, &f->state); - if (r < 0) - f->state = UNIT_FILE_BAD; - - if (!strv_isempty(states) && - !strv_contains(states, unit_file_state_to_string(f->state))) - continue; - - r = hashmap_put(h, basename(f->path), f); - if (r < 0) - return r; - - f = NULL; /* prevent cleanup */ - } - } - - return 0; -} - -static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { - [UNIT_FILE_ENABLED] = "enabled", - [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", - [UNIT_FILE_LINKED] = "linked", - [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", - [UNIT_FILE_MASKED] = "masked", - [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", - [UNIT_FILE_STATIC] = "static", - [UNIT_FILE_DISABLED] = "disabled", - [UNIT_FILE_INDIRECT] = "indirect", - [UNIT_FILE_GENERATED] = "generated", - [UNIT_FILE_TRANSIENT] = "transient", - [UNIT_FILE_BAD] = "bad", -}; - -DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); - -static const char* const unit_file_change_type_table[_UNIT_FILE_CHANGE_TYPE_MAX] = { - [UNIT_FILE_SYMLINK] = "symlink", - [UNIT_FILE_UNLINK] = "unlink", - [UNIT_FILE_IS_MASKED] = "masked", - [UNIT_FILE_IS_DANGLING] = "dangling", -}; - -DEFINE_STRING_TABLE_LOOKUP(unit_file_change_type, UnitFileChangeType); - -static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MAX] = { - [UNIT_FILE_PRESET_FULL] = "full", - [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only", - [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only", -}; - -DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode); diff --git a/src/shared/install.h b/src/shared/install.h deleted file mode 100644 index 7a5859e729..0000000000 --- a/src/shared/install.h +++ /dev/null @@ -1,256 +0,0 @@ -#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/>. -***/ - -typedef enum UnitFileScope UnitFileScope; -typedef enum UnitFileState UnitFileState; -typedef enum UnitFilePresetMode UnitFilePresetMode; -typedef enum UnitFileChangeType UnitFileChangeType; -typedef enum UnitFileFlags UnitFileFlags; -typedef enum UnitFileType UnitFileType; -typedef struct UnitFileChange UnitFileChange; -typedef struct UnitFileList UnitFileList; -typedef struct UnitFileInstallInfo UnitFileInstallInfo; - -#include <stdbool.h> - -#include "hashmap.h" -#include "macro.h" -#include "path-lookup.h" -#include "strv.h" -#include "unit-name.h" - -enum UnitFileScope { - UNIT_FILE_SYSTEM, - UNIT_FILE_GLOBAL, - UNIT_FILE_USER, - _UNIT_FILE_SCOPE_MAX, - _UNIT_FILE_SCOPE_INVALID = -1 -}; - -enum UnitFileState { - UNIT_FILE_ENABLED, - UNIT_FILE_ENABLED_RUNTIME, - UNIT_FILE_LINKED, - UNIT_FILE_LINKED_RUNTIME, - UNIT_FILE_MASKED, - UNIT_FILE_MASKED_RUNTIME, - UNIT_FILE_STATIC, - UNIT_FILE_DISABLED, - UNIT_FILE_INDIRECT, - UNIT_FILE_GENERATED, - UNIT_FILE_TRANSIENT, - UNIT_FILE_BAD, - _UNIT_FILE_STATE_MAX, - _UNIT_FILE_STATE_INVALID = -1 -}; - -enum UnitFilePresetMode { - UNIT_FILE_PRESET_FULL, - UNIT_FILE_PRESET_ENABLE_ONLY, - UNIT_FILE_PRESET_DISABLE_ONLY, - _UNIT_FILE_PRESET_MAX, - _UNIT_FILE_PRESET_INVALID = -1 -}; - -enum UnitFileChangeType { - UNIT_FILE_SYMLINK, - UNIT_FILE_UNLINK, - UNIT_FILE_IS_MASKED, - UNIT_FILE_IS_DANGLING, - _UNIT_FILE_CHANGE_TYPE_MAX, - _UNIT_FILE_CHANGE_INVALID = INT_MIN -}; - -enum UnitFileFlags { - UNIT_FILE_RUNTIME = 1, - UNIT_FILE_FORCE = 1 << 1, - UNIT_FILE_DRY_RUN = 1 << 2, -}; - -/* type can either one of the UnitFileChangeTypes listed above, or a negative error. - * If source is specified, it should be the contents of the path symlink. - * In case of an error, source should be the existing symlink contents or NULL - */ -struct UnitFileChange { - int type; /* UnitFileChangeType or bust */ - char *path; - char *source; -}; - -static inline bool unit_file_changes_have_modification(const UnitFileChange* changes, unsigned n_changes) { - unsigned i; - for (i = 0; i < n_changes; i++) - if (IN_SET(changes[i].type, UNIT_FILE_SYMLINK, UNIT_FILE_UNLINK)) - return true; - return false; -} - -struct UnitFileList { - char *path; - UnitFileState state; -}; - -enum UnitFileType { - UNIT_FILE_TYPE_REGULAR, - UNIT_FILE_TYPE_SYMLINK, - UNIT_FILE_TYPE_MASKED, - _UNIT_FILE_TYPE_MAX, - _UNIT_FILE_TYPE_INVALID = -1, -}; - -struct UnitFileInstallInfo { - char *name; - char *path; - - char **aliases; - char **wanted_by; - char **required_by; - char **also; - - char *default_instance; - char *symlink_target; - - UnitFileType type; - bool auxiliary; -}; - -static inline bool UNIT_FILE_INSTALL_INFO_HAS_RULES(UnitFileInstallInfo *i) { - assert(i); - - return !strv_isempty(i->aliases) || - !strv_isempty(i->wanted_by) || - !strv_isempty(i->required_by); -} - -static inline bool UNIT_FILE_INSTALL_INFO_HAS_ALSO(UnitFileInstallInfo *i) { - assert(i); - - return !strv_isempty(i->also); -} - -bool unit_type_may_alias(UnitType type) _const_; -bool unit_type_may_template(UnitType type) _const_; - -int unit_file_enable( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_disable( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_reenable( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_preset( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFilePresetMode mode, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_preset_all( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - UnitFilePresetMode mode, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_mask( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_unmask( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_link( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_revert( - UnitFileScope scope, - const char *root_dir, - char **files, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_set_default( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - const char *file, - UnitFileChange **changes, - unsigned *n_changes); -int unit_file_get_default( - UnitFileScope scope, - const char *root_dir, - char **name); -int unit_file_add_dependency( - UnitFileScope scope, - UnitFileFlags flags, - const char *root_dir, - char **files, - const char *target, - UnitDependency dep, - UnitFileChange **changes, - unsigned *n_changes); - -int unit_file_get_state(UnitFileScope scope, const char *root_dir, const char *filename, UnitFileState *ret); -int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name); - -int unit_file_get_list(UnitFileScope scope, const char *root_dir, Hashmap *h, char **states, char **patterns); -Hashmap* unit_file_list_free(Hashmap *h); - -int unit_file_changes_add(UnitFileChange **changes, unsigned *n_changes, UnitFileChangeType type, const char *path, const char *source); -void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes); -void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, unsigned n_changes, bool quiet); - -int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name); - -const char *unit_file_state_to_string(UnitFileState s) _const_; -UnitFileState unit_file_state_from_string(const char *s) _pure_; -/* from_string conversion is unreliable because of the overlap between -EPERM and -1 for error. */ - -const char *unit_file_change_type_to_string(UnitFileChangeType s) _const_; -UnitFileChangeType unit_file_change_type_from_string(const char *s) _pure_; - -const char *unit_file_preset_mode_to_string(UnitFilePresetMode m) _const_; -UnitFilePresetMode unit_file_preset_mode_from_string(const char *s) _pure_; diff --git a/src/shared/linux/auto_dev-ioctl.h b/src/shared/linux/auto_dev-ioctl.h deleted file mode 100644 index aeaeb3ea7a..0000000000 --- a/src/shared/linux/auto_dev-ioctl.h +++ /dev/null @@ -1,228 +0,0 @@ -/* - * Copyright 2008 Red Hat, Inc. All rights reserved. - * Copyright 2008 Ian Kent <raven@themaw.net> - * - * This file is part of the Linux kernel and is made available under - * the terms of the GNU General Public License, version 2, or at your - * option, any later version, incorporated herein by reference. - */ - -#ifndef _LINUX_AUTO_DEV_IOCTL_H -#define _LINUX_AUTO_DEV_IOCTL_H - -#include <linux/auto_fs.h> - -#ifdef __KERNEL__ -#include <linux/string.h> -#else -#include <string.h> -#endif /* __KERNEL__ */ - -#define AUTOFS_DEVICE_NAME "autofs" - -#define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1 -#define AUTOFS_DEV_IOCTL_VERSION_MINOR 0 - -#define AUTOFS_DEVID_LEN 16 - -#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl) - -/* - * An ioctl interface for autofs mount point control. - */ - -struct args_protover { - __u32 version; -}; - -struct args_protosubver { - __u32 sub_version; -}; - -struct args_openmount { - __u32 devid; -}; - -struct args_ready { - __u32 token; -}; - -struct args_fail { - __u32 token; - __s32 status; -}; - -struct args_setpipefd { - __s32 pipefd; -}; - -struct args_timeout { - __u64 timeout; -}; - -struct args_requester { - __u32 uid; - __u32 gid; -}; - -struct args_expire { - __u32 how; -}; - -struct args_askumount { - __u32 may_umount; -}; - -struct args_ismountpoint { - union { - struct args_in { - __u32 type; - } in; - struct args_out { - __u32 devid; - __u32 magic; - } out; - }; -}; - -/* - * All the ioctls use this structure. - * When sending a path size must account for the total length - * of the chunk of memory otherwise is is the size of the - * structure. - */ - -struct autofs_dev_ioctl { - __u32 ver_major; - __u32 ver_minor; - __u32 size; /* total size of data passed in - * including this struct */ - __s32 ioctlfd; /* automount command fd */ - - /* Command parameters */ - - union { - struct args_protover protover; - struct args_protosubver protosubver; - struct args_openmount openmount; - struct args_ready ready; - struct args_fail fail; - struct args_setpipefd setpipefd; - struct args_timeout timeout; - struct args_requester requester; - struct args_expire expire; - struct args_askumount askumount; - struct args_ismountpoint ismountpoint; - }; - - char path[0]; -}; - -static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in) { - memset(in, 0, sizeof(struct autofs_dev_ioctl)); - in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR; - in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR; - in->size = sizeof(struct autofs_dev_ioctl); - in->ioctlfd = -1; - return; -} - -/* - * If you change this make sure you make the corresponding change - * to autofs-dev-ioctl.c:lookup_ioctl() - */ -enum { - /* Get various version info */ - AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71, - AUTOFS_DEV_IOCTL_PROTOVER_CMD, - AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, - - /* Open mount ioctl fd */ - AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, - - /* Close mount ioctl fd */ - AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, - - /* Mount/expire status returns */ - AUTOFS_DEV_IOCTL_READY_CMD, - AUTOFS_DEV_IOCTL_FAIL_CMD, - - /* Activate/deactivate autofs mount */ - AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, - AUTOFS_DEV_IOCTL_CATATONIC_CMD, - - /* Expiry timeout */ - AUTOFS_DEV_IOCTL_TIMEOUT_CMD, - - /* Get mount last requesting uid and gid */ - AUTOFS_DEV_IOCTL_REQUESTER_CMD, - - /* Check for eligible expire candidates */ - AUTOFS_DEV_IOCTL_EXPIRE_CMD, - - /* Request busy status */ - AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, - - /* Check if path is a mountpoint */ - AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, -}; - -#define AUTOFS_IOCTL 0x93 - -#define AUTOFS_DEV_IOCTL_VERSION \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_PROTOVER \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_PROTOSUBVER \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_OPENMOUNT \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_CLOSEMOUNT \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_READY \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_FAIL \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_SETPIPEFD \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_CATATONIC \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_TIMEOUT \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_REQUESTER \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_EXPIRE \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_ASKUMOUNT \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl) - -#define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \ - _IOWR(AUTOFS_IOCTL, \ - AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl) - -#endif /* _LINUX_AUTO_DEV_IOCTL_H */ diff --git a/src/shared/logs-show.c b/src/shared/logs-show.c deleted file mode 100644 index f9d9c4ed62..0000000000 --- a/src/shared/logs-show.c +++ /dev/null @@ -1,1351 +0,0 @@ -/*** - 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 <fcntl.h> -#include <signal.h> -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <sys/socket.h> -#include <syslog.h> -#include <time.h> -#include <unistd.h> - -#include "sd-id128.h" -#include "sd-journal.h" - -#include "alloc-util.h" -#include "fd-util.h" -#include "formats-util.h" -#include "hashmap.h" -#include "hostname-util.h" -#include "io-util.h" -#include "journal-internal.h" -#include "log.h" -#include "logs-show.h" -#include "macro.h" -#include "output-mode.h" -#include "parse-util.h" -#include "process-util.h" -#include "sparse-endian.h" -#include "stdio-util.h" -#include "string-table.h" -#include "string-util.h" -#include "terminal-util.h" -#include "time-util.h" -#include "utf8.h" -#include "util.h" - -/* up to three lines (each up to 100 characters) or 300 characters, whichever is less */ -#define PRINT_LINE_THRESHOLD 3 -#define PRINT_CHAR_THRESHOLD 300 - -#define JSON_THRESHOLD 4096 - -static int print_catalog(FILE *f, sd_journal *j) { - int r; - _cleanup_free_ char *t = NULL, *z = NULL; - - - r = sd_journal_get_catalog(j, &t); - if (r < 0) - return r; - - z = strreplace(strstrip(t), "\n", "\n-- "); - if (!z) - return log_oom(); - - fputs("-- ", f); - fputs(z, f); - fputc('\n', f); - - return 0; -} - -static int parse_field(const void *data, size_t length, const char *field, char **target, size_t *target_size) { - size_t fl, nl; - char *buf; - - assert(data); - assert(field); - assert(target); - - fl = strlen(field); - if (length < fl) - return 0; - - if (memcmp(data, field, fl)) - return 0; - - nl = length - fl; - buf = new(char, nl+1); - if (!buf) - return log_oom(); - - memcpy(buf, (const char*) data + fl, nl); - buf[nl] = 0; - - free(*target); - *target = buf; - - if (target_size) - *target_size = nl; - - return 1; -} - -static bool shall_print(const char *p, size_t l, OutputFlags flags) { - assert(p); - - if (flags & OUTPUT_SHOW_ALL) - return true; - - if (l >= PRINT_CHAR_THRESHOLD) - return false; - - if (!utf8_is_printable(p, l)) - return false; - - return true; -} - -static bool print_multiline(FILE *f, unsigned prefix, unsigned n_columns, OutputFlags flags, int priority, const char* message, size_t message_len) { - const char *color_on = "", *color_off = ""; - const char *pos, *end; - bool ellipsized = false; - int line = 0; - - if (flags & OUTPUT_COLOR) { - if (priority <= LOG_ERR) { - color_on = ANSI_HIGHLIGHT_RED; - color_off = ANSI_NORMAL; - } else if (priority <= LOG_NOTICE) { - color_on = ANSI_HIGHLIGHT; - color_off = ANSI_NORMAL; - } - } - - /* A special case: make sure that we print a newline when - the message is empty. */ - if (message_len == 0) - fputs("\n", f); - - for (pos = message; - pos < message + message_len; - pos = end + 1, line++) { - bool continuation = line > 0; - bool tail_line; - int len; - for (end = pos; end < message + message_len && *end != '\n'; end++) - ; - len = end - pos; - assert(len >= 0); - - /* We need to figure out when we are showing not-last line, *and* - * will skip subsequent lines. In that case, we will put the dots - * at the end of the line, instead of putting dots in the middle - * or not at all. - */ - tail_line = - line + 1 == PRINT_LINE_THRESHOLD || - end + 1 >= message + PRINT_CHAR_THRESHOLD; - - if (flags & (OUTPUT_FULL_WIDTH | OUTPUT_SHOW_ALL) || - (prefix + len + 1 < n_columns && !tail_line)) { - fprintf(f, "%*s%s%.*s%s\n", - continuation * prefix, "", - color_on, len, pos, color_off); - continue; - } - - /* Beyond this point, ellipsization will happen. */ - ellipsized = true; - - if (prefix < n_columns && n_columns - prefix >= 3) { - if (n_columns - prefix > (unsigned) len + 3) - fprintf(f, "%*s%s%.*s...%s\n", - continuation * prefix, "", - color_on, len, pos, color_off); - else { - _cleanup_free_ char *e; - - e = ellipsize_mem(pos, len, n_columns - prefix, - tail_line ? 100 : 90); - if (!e) - fprintf(f, "%*s%s%.*s%s\n", - continuation * prefix, "", - color_on, len, pos, color_off); - else - fprintf(f, "%*s%s%s%s\n", - continuation * prefix, "", - color_on, e, color_off); - } - } else - fputs("...\n", f); - - if (tail_line) - break; - } - - return ellipsized; -} - -static int output_timestamp_monotonic(FILE *f, sd_journal *j, const char *monotonic) { - sd_id128_t boot_id; - uint64_t t; - int r; - - assert(f); - assert(j); - - r = -ENXIO; - if (monotonic) - r = safe_atou64(monotonic, &t); - if (r < 0) - r = sd_journal_get_monotonic_usec(j, &t, &boot_id); - if (r < 0) - return log_error_errno(r, "Failed to get monotonic timestamp: %m"); - - fprintf(f, "[%5llu.%06llu]", - (unsigned long long) (t / USEC_PER_SEC), - (unsigned long long) (t % USEC_PER_SEC)); - - return 1 + 5 + 1 + 6 + 1; -} - -static int output_timestamp_realtime(FILE *f, sd_journal *j, OutputMode mode, OutputFlags flags, const char *realtime) { - char buf[MAX(FORMAT_TIMESTAMP_MAX, 64)]; - struct tm *(*gettime_r)(const time_t *, struct tm *); - struct tm tm; - uint64_t x; - time_t t; - int r; - - assert(f); - assert(j); - - r = -ENXIO; - if (realtime) - r = safe_atou64(realtime, &x); - if (r < 0) - r = sd_journal_get_realtime_usec(j, &x); - if (r < 0) - return log_error_errno(r, "Failed to get realtime timestamp: %m"); - - if (mode == OUTPUT_SHORT_FULL) { - const char *k; - - if (flags & OUTPUT_UTC) - k = format_timestamp_utc(buf, sizeof(buf), x); - else - k = format_timestamp(buf, sizeof(buf), x); - if (!k) { - log_error("Failed to format timestamp."); - return -EINVAL; - } - - } else { - gettime_r = (flags & OUTPUT_UTC) ? gmtime_r : localtime_r; - t = (time_t) (x / USEC_PER_SEC); - - switch (mode) { - - case OUTPUT_SHORT_UNIX: - xsprintf(buf, "%10llu.%06llu", (unsigned long long) t, (unsigned long long) (x % USEC_PER_SEC)); - break; - - case OUTPUT_SHORT_ISO: - if (strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", gettime_r(&t, &tm)) <= 0) { - log_error("Failed for format ISO time"); - return -EINVAL; - } - break; - - case OUTPUT_SHORT: - case OUTPUT_SHORT_PRECISE: - - if (strftime(buf, sizeof(buf), "%b %d %H:%M:%S", gettime_r(&t, &tm)) <= 0) { - log_error("Failed to format syslog time"); - return -EINVAL; - } - - if (mode == OUTPUT_SHORT_PRECISE) { - size_t k; - - assert(sizeof(buf) > strlen(buf)); - k = sizeof(buf) - strlen(buf); - - r = snprintf(buf + strlen(buf), k, ".%06llu", (unsigned long long) (x % USEC_PER_SEC)); - if (r <= 0 || (size_t) r >= k) { /* too long? */ - log_error("Failed to format precise time"); - return -EINVAL; - } - } - break; - - default: - assert_not_reached("Unknown time format"); - } - } - - fputs(buf, f); - return (int) strlen(buf); -} - -static int output_short( - FILE *f, - sd_journal *j, - OutputMode mode, - unsigned n_columns, - OutputFlags flags) { - - int r; - const void *data; - size_t length; - size_t n = 0; - _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL; - size_t hostname_len = 0, identifier_len = 0, comm_len = 0, pid_len = 0, fake_pid_len = 0, message_len = 0, realtime_len = 0, monotonic_len = 0, priority_len = 0; - int p = LOG_INFO; - bool ellipsized = false; - - assert(f); - assert(j); - - /* Set the threshold to one bigger than the actual print - * threshold, so that if the line is actually longer than what - * we're willing to print, ellipsization will occur. This way - * we won't output a misleading line without any indication of - * truncation. - */ - sd_journal_set_data_threshold(j, flags & (OUTPUT_SHOW_ALL|OUTPUT_FULL_WIDTH) ? 0 : PRINT_CHAR_THRESHOLD + 1); - - JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { - - r = parse_field(data, length, "PRIORITY=", &priority, &priority_len); - if (r < 0) - return r; - else if (r > 0) - continue; - - r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len); - if (r < 0) - return r; - else if (r > 0) - continue; - - r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len); - if (r < 0) - return r; - else if (r > 0) - continue; - - r = parse_field(data, length, "_COMM=", &comm, &comm_len); - if (r < 0) - return r; - else if (r > 0) - continue; - - r = parse_field(data, length, "_PID=", &pid, &pid_len); - if (r < 0) - return r; - else if (r > 0) - continue; - - r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len); - if (r < 0) - return r; - else if (r > 0) - continue; - - r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len); - if (r < 0) - return r; - else if (r > 0) - continue; - - r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len); - if (r < 0) - return r; - else if (r > 0) - continue; - - r = parse_field(data, length, "MESSAGE=", &message, &message_len); - if (r < 0) - return r; - } - if (r == -EBADMSG) { - log_debug_errno(r, "Skipping message we can't read: %m"); - return 0; - } - if (r < 0) - return log_error_errno(r, "Failed to get journal fields: %m"); - - if (!message) { - log_debug("Skipping message without MESSAGE= field."); - return 0; - } - - if (!(flags & OUTPUT_SHOW_ALL)) - strip_tab_ansi(&message, &message_len); - - if (priority_len == 1 && *priority >= '0' && *priority <= '7') - p = *priority - '0'; - - if (mode == OUTPUT_SHORT_MONOTONIC) - r = output_timestamp_monotonic(f, j, monotonic); - else - r = output_timestamp_realtime(f, j, mode, flags, realtime); - if (r < 0) - return r; - n += r; - - if (flags & OUTPUT_NO_HOSTNAME) { - /* Suppress display of the hostname if this is requested. */ - hostname = NULL; - hostname_len = 0; - } - - if (hostname && shall_print(hostname, hostname_len, flags)) { - fprintf(f, " %.*s", (int) hostname_len, hostname); - n += hostname_len + 1; - } - - if (identifier && shall_print(identifier, identifier_len, flags)) { - fprintf(f, " %.*s", (int) identifier_len, identifier); - n += identifier_len + 1; - } else if (comm && shall_print(comm, comm_len, flags)) { - fprintf(f, " %.*s", (int) comm_len, comm); - n += comm_len + 1; - } else - fputs(" unknown", f); - - if (pid && shall_print(pid, pid_len, flags)) { - fprintf(f, "[%.*s]", (int) pid_len, pid); - n += pid_len + 2; - } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) { - fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid); - n += fake_pid_len + 2; - } - - if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(message, message_len)) { - char bytes[FORMAT_BYTES_MAX]; - fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len)); - } else { - fputs(": ", f); - ellipsized |= - print_multiline(f, n + 2, n_columns, flags, p, message, message_len); - } - - if (flags & OUTPUT_CATALOG) - print_catalog(f, j); - - return ellipsized; -} - -static int output_verbose( - FILE *f, - sd_journal *j, - OutputMode mode, - unsigned n_columns, - OutputFlags flags) { - - const void *data; - size_t length; - _cleanup_free_ char *cursor = NULL; - uint64_t realtime = 0; - char ts[FORMAT_TIMESTAMP_MAX + 7]; - int r; - - assert(f); - assert(j); - - sd_journal_set_data_threshold(j, 0); - - r = sd_journal_get_data(j, "_SOURCE_REALTIME_TIMESTAMP", &data, &length); - if (r == -ENOENT) - log_debug("Source realtime timestamp not found"); - else if (r < 0) - return log_full_errno(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, r, "Failed to get source realtime timestamp: %m"); - else { - _cleanup_free_ char *value = NULL; - - r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &value, NULL); - if (r < 0) - return r; - assert(r > 0); - - r = safe_atou64(value, &realtime); - if (r < 0) - log_debug_errno(r, "Failed to parse realtime timestamp: %m"); - } - - if (r < 0) { - r = sd_journal_get_realtime_usec(j, &realtime); - if (r < 0) - return log_full_errno(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, r, "Failed to get realtime timestamp: %m"); - } - - r = sd_journal_get_cursor(j, &cursor); - if (r < 0) - return log_error_errno(r, "Failed to get cursor: %m"); - - fprintf(f, "%s [%s]\n", - flags & OUTPUT_UTC ? - format_timestamp_us_utc(ts, sizeof(ts), realtime) : - format_timestamp_us(ts, sizeof(ts), realtime), - cursor); - - JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { - const char *c; - int fieldlen; - const char *on = "", *off = ""; - - c = memchr(data, '=', length); - if (!c) { - log_error("Invalid field."); - return -EINVAL; - } - fieldlen = c - (const char*) data; - - if (flags & OUTPUT_COLOR && startswith(data, "MESSAGE=")) { - on = ANSI_HIGHLIGHT; - off = ANSI_NORMAL; - } - - if ((flags & OUTPUT_SHOW_ALL) || - (((length < PRINT_CHAR_THRESHOLD) || flags & OUTPUT_FULL_WIDTH) - && utf8_is_printable(data, length))) { - fprintf(f, " %s%.*s=", on, fieldlen, (const char*)data); - print_multiline(f, 4 + fieldlen + 1, 0, OUTPUT_FULL_WIDTH, 0, c + 1, length - fieldlen - 1); - fputs(off, f); - } else { - char bytes[FORMAT_BYTES_MAX]; - - fprintf(f, " %s%.*s=[%s blob data]%s\n", - on, - (int) (c - (const char*) data), - (const char*) data, - format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1), - off); - } - } - - if (r < 0) - return r; - - if (flags & OUTPUT_CATALOG) - print_catalog(f, j); - - return 0; -} - -static int output_export( - FILE *f, - sd_journal *j, - OutputMode mode, - unsigned n_columns, - OutputFlags flags) { - - sd_id128_t boot_id; - char sid[33]; - int r; - usec_t realtime, monotonic; - _cleanup_free_ char *cursor = NULL; - const void *data; - size_t length; - - assert(j); - - sd_journal_set_data_threshold(j, 0); - - r = sd_journal_get_realtime_usec(j, &realtime); - if (r < 0) - return log_error_errno(r, "Failed to get realtime timestamp: %m"); - - r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); - if (r < 0) - return log_error_errno(r, "Failed to get monotonic timestamp: %m"); - - r = sd_journal_get_cursor(j, &cursor); - if (r < 0) - return log_error_errno(r, "Failed to get cursor: %m"); - - fprintf(f, - "__CURSOR=%s\n" - "__REALTIME_TIMESTAMP="USEC_FMT"\n" - "__MONOTONIC_TIMESTAMP="USEC_FMT"\n" - "_BOOT_ID=%s\n", - cursor, - realtime, - monotonic, - sd_id128_to_string(boot_id, sid)); - - JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { - - /* We already printed the boot id, from the data in - * the header, hence let's suppress it here */ - if (length >= 9 && - startswith(data, "_BOOT_ID=")) - continue; - - if (utf8_is_printable_newline(data, length, false)) - fwrite(data, length, 1, f); - else { - const char *c; - uint64_t le64; - - c = memchr(data, '=', length); - if (!c) { - log_error("Invalid field."); - return -EINVAL; - } - - fwrite(data, c - (const char*) data, 1, f); - fputc('\n', f); - le64 = htole64(length - (c - (const char*) data) - 1); - fwrite(&le64, sizeof(le64), 1, f); - fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f); - } - - fputc('\n', f); - } - - if (r < 0) - return r; - - fputc('\n', f); - - return 0; -} - -void json_escape( - FILE *f, - const char* p, - size_t l, - OutputFlags flags) { - - assert(f); - assert(p); - - if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD) - fputs("null", f); - - else if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(p, l)) { - bool not_first = false; - - fputs("[ ", f); - - while (l > 0) { - if (not_first) - fprintf(f, ", %u", (uint8_t) *p); - else { - not_first = true; - fprintf(f, "%u", (uint8_t) *p); - } - - p++; - l--; - } - - fputs(" ]", f); - } else { - fputc('\"', f); - - while (l > 0) { - if (*p == '"' || *p == '\\') { - fputc('\\', f); - fputc(*p, f); - } else if (*p == '\n') - fputs("\\n", f); - else if ((uint8_t) *p < ' ') - fprintf(f, "\\u%04x", (uint8_t) *p); - else - fputc(*p, f); - - p++; - l--; - } - - fputc('\"', f); - } -} - -static int output_json( - FILE *f, - sd_journal *j, - OutputMode mode, - unsigned n_columns, - OutputFlags flags) { - - uint64_t realtime, monotonic; - _cleanup_free_ char *cursor = NULL; - const void *data; - size_t length; - sd_id128_t boot_id; - char sid[33], *k; - int r; - Hashmap *h = NULL; - bool done, separator; - - assert(j); - - sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD); - - r = sd_journal_get_realtime_usec(j, &realtime); - if (r < 0) - return log_error_errno(r, "Failed to get realtime timestamp: %m"); - - r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); - if (r < 0) - return log_error_errno(r, "Failed to get monotonic timestamp: %m"); - - r = sd_journal_get_cursor(j, &cursor); - if (r < 0) - return log_error_errno(r, "Failed to get cursor: %m"); - - if (mode == OUTPUT_JSON_PRETTY) - fprintf(f, - "{\n" - "\t\"__CURSOR\" : \"%s\",\n" - "\t\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\",\n" - "\t\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\",\n" - "\t\"_BOOT_ID\" : \"%s\"", - cursor, - realtime, - monotonic, - sd_id128_to_string(boot_id, sid)); - else { - if (mode == OUTPUT_JSON_SSE) - fputs("data: ", f); - - fprintf(f, - "{ \"__CURSOR\" : \"%s\", " - "\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\", " - "\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\", " - "\"_BOOT_ID\" : \"%s\"", - cursor, - realtime, - monotonic, - sd_id128_to_string(boot_id, sid)); - } - - h = hashmap_new(&string_hash_ops); - if (!h) - return log_oom(); - - /* First round, iterate through the entry and count how often each field appears */ - JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { - const char *eq; - char *n; - unsigned u; - - if (length >= 9 && - memcmp(data, "_BOOT_ID=", 9) == 0) - continue; - - eq = memchr(data, '=', length); - if (!eq) - continue; - - n = strndup(data, eq - (const char*) data); - if (!n) { - r = log_oom(); - goto finish; - } - - u = PTR_TO_UINT(hashmap_get(h, n)); - if (u == 0) { - r = hashmap_put(h, n, UINT_TO_PTR(1)); - if (r < 0) { - free(n); - log_oom(); - goto finish; - } - } else { - r = hashmap_update(h, n, UINT_TO_PTR(u + 1)); - free(n); - if (r < 0) { - log_oom(); - goto finish; - } - } - } - - if (r < 0) - return r; - - separator = true; - do { - done = true; - - SD_JOURNAL_FOREACH_DATA(j, data, length) { - const char *eq; - char *kk, *n; - size_t m; - unsigned u; - - /* We already printed the boot id, from the data in - * the header, hence let's suppress it here */ - if (length >= 9 && - memcmp(data, "_BOOT_ID=", 9) == 0) - continue; - - eq = memchr(data, '=', length); - if (!eq) - continue; - - if (separator) { - if (mode == OUTPUT_JSON_PRETTY) - fputs(",\n\t", f); - else - fputs(", ", f); - } - - m = eq - (const char*) data; - - n = strndup(data, m); - if (!n) { - r = log_oom(); - goto finish; - } - - u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk)); - if (u == 0) { - /* We already printed this, let's jump to the next */ - free(n); - separator = false; - - continue; - } else if (u == 1) { - /* Field only appears once, output it directly */ - - json_escape(f, data, m, flags); - fputs(" : ", f); - - json_escape(f, eq + 1, length - m - 1, flags); - - hashmap_remove(h, n); - free(kk); - free(n); - - separator = true; - - continue; - - } else { - /* Field appears multiple times, output it as array */ - json_escape(f, data, m, flags); - fputs(" : [ ", f); - json_escape(f, eq + 1, length - m - 1, flags); - - /* Iterate through the end of the list */ - - while (sd_journal_enumerate_data(j, &data, &length) > 0) { - if (length < m + 1) - continue; - - if (memcmp(data, n, m) != 0) - continue; - - if (((const char*) data)[m] != '=') - continue; - - fputs(", ", f); - json_escape(f, (const char*) data + m + 1, length - m - 1, flags); - } - - fputs(" ]", f); - - hashmap_remove(h, n); - free(kk); - free(n); - - /* Iterate data fields form the beginning */ - done = false; - separator = true; - - break; - } - } - - } while (!done); - - if (mode == OUTPUT_JSON_PRETTY) - fputs("\n}\n", f); - else if (mode == OUTPUT_JSON_SSE) - fputs("}\n\n", f); - else - fputs(" }\n", f); - - r = 0; - -finish: - while ((k = hashmap_steal_first_key(h))) - free(k); - - hashmap_free(h); - - return r; -} - -static int output_cat( - FILE *f, - sd_journal *j, - OutputMode mode, - unsigned n_columns, - OutputFlags flags) { - - const void *data; - size_t l; - int r; - - assert(j); - assert(f); - - sd_journal_set_data_threshold(j, 0); - - r = sd_journal_get_data(j, "MESSAGE", &data, &l); - if (r < 0) { - /* An entry without MESSAGE=? */ - if (r == -ENOENT) - return 0; - - return log_error_errno(r, "Failed to get data: %m"); - } - - assert(l >= 8); - - fwrite((const char*) data + 8, 1, l - 8, f); - fputc('\n', f); - - return 0; -} - -static int (*output_funcs[_OUTPUT_MODE_MAX])( - FILE *f, - sd_journal*j, - OutputMode mode, - unsigned n_columns, - OutputFlags flags) = { - - [OUTPUT_SHORT] = output_short, - [OUTPUT_SHORT_ISO] = output_short, - [OUTPUT_SHORT_PRECISE] = output_short, - [OUTPUT_SHORT_MONOTONIC] = output_short, - [OUTPUT_SHORT_UNIX] = output_short, - [OUTPUT_SHORT_FULL] = output_short, - [OUTPUT_VERBOSE] = output_verbose, - [OUTPUT_EXPORT] = output_export, - [OUTPUT_JSON] = output_json, - [OUTPUT_JSON_PRETTY] = output_json, - [OUTPUT_JSON_SSE] = output_json, - [OUTPUT_CAT] = output_cat -}; - -int output_journal( - FILE *f, - sd_journal *j, - OutputMode mode, - unsigned n_columns, - OutputFlags flags, - bool *ellipsized) { - - int ret; - assert(mode >= 0); - assert(mode < _OUTPUT_MODE_MAX); - - if (n_columns <= 0) - n_columns = columns(); - - ret = output_funcs[mode](f, j, mode, n_columns, flags); - fflush(stdout); - - if (ellipsized && ret > 0) - *ellipsized = true; - - return ret; -} - -static int maybe_print_begin_newline(FILE *f, OutputFlags *flags) { - assert(f); - assert(flags); - - if (!(*flags & OUTPUT_BEGIN_NEWLINE)) - return 0; - - /* Print a beginning new line if that's request, but only once - * on the first line we print. */ - - fputc('\n', f); - *flags &= ~OUTPUT_BEGIN_NEWLINE; - return 0; -} - -static int show_journal(FILE *f, - sd_journal *j, - OutputMode mode, - unsigned n_columns, - usec_t not_before, - unsigned how_many, - OutputFlags flags, - bool *ellipsized) { - - int r; - unsigned line = 0; - bool need_seek = false; - int warn_cutoff = flags & OUTPUT_WARN_CUTOFF; - - assert(j); - assert(mode >= 0); - assert(mode < _OUTPUT_MODE_MAX); - - /* Seek to end */ - r = sd_journal_seek_tail(j); - if (r < 0) - return log_error_errno(r, "Failed to seek to tail: %m"); - - r = sd_journal_previous_skip(j, how_many); - if (r < 0) - return log_error_errno(r, "Failed to skip previous: %m"); - - for (;;) { - for (;;) { - usec_t usec; - - if (need_seek) { - r = sd_journal_next(j); - if (r < 0) - return log_error_errno(r, "Failed to iterate through journal: %m"); - } - - if (r == 0) - break; - - need_seek = true; - - if (not_before > 0) { - r = sd_journal_get_monotonic_usec(j, &usec, NULL); - - /* -ESTALE is returned if the - timestamp is not from this boot */ - if (r == -ESTALE) - continue; - else if (r < 0) - return log_error_errno(r, "Failed to get journal time: %m"); - - if (usec < not_before) - continue; - } - - line++; - maybe_print_begin_newline(f, &flags); - - r = output_journal(f, j, mode, n_columns, flags, ellipsized); - if (r < 0) - return r; - } - - if (warn_cutoff && line < how_many && not_before > 0) { - sd_id128_t boot_id; - usec_t cutoff = 0; - - /* Check whether the cutoff line is too early */ - - r = sd_id128_get_boot(&boot_id); - if (r < 0) - return log_error_errno(r, "Failed to get boot id: %m"); - - r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL); - if (r < 0) - return log_error_errno(r, "Failed to get journal cutoff time: %m"); - - if (r > 0 && not_before < cutoff) { - maybe_print_begin_newline(f, &flags); - fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n"); - } - - warn_cutoff = false; - } - - if (!(flags & OUTPUT_FOLLOW)) - break; - - r = sd_journal_wait(j, USEC_INFINITY); - if (r < 0) - return log_error_errno(r, "Failed to wait for journal: %m"); - - } - - return 0; -} - -int add_matches_for_unit(sd_journal *j, const char *unit) { - const char *m1, *m2, *m3, *m4; - int r; - - assert(j); - assert(unit); - - m1 = strjoina("_SYSTEMD_UNIT=", unit); - m2 = strjoina("COREDUMP_UNIT=", unit); - m3 = strjoina("UNIT=", unit); - m4 = strjoina("OBJECT_SYSTEMD_UNIT=", unit); - - (void)( - /* Look for messages from the service itself */ - (r = sd_journal_add_match(j, m1, 0)) || - - /* Look for coredumps of the service */ - (r = sd_journal_add_disjunction(j)) || - (r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) || - (r = sd_journal_add_match(j, "_UID=0", 0)) || - (r = sd_journal_add_match(j, m2, 0)) || - - /* Look for messages from PID 1 about this service */ - (r = sd_journal_add_disjunction(j)) || - (r = sd_journal_add_match(j, "_PID=1", 0)) || - (r = sd_journal_add_match(j, m3, 0)) || - - /* Look for messages from authorized daemons about this service */ - (r = sd_journal_add_disjunction(j)) || - (r = sd_journal_add_match(j, "_UID=0", 0)) || - (r = sd_journal_add_match(j, m4, 0)) - ); - - if (r == 0 && endswith(unit, ".slice")) { - const char *m5; - - m5 = strjoina("_SYSTEMD_SLICE=", unit); - - /* Show all messages belonging to a slice */ - (void)( - (r = sd_journal_add_disjunction(j)) || - (r = sd_journal_add_match(j, m5, 0)) - ); - } - - return r; -} - -int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) { - int r; - char *m1, *m2, *m3, *m4; - char muid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)]; - - assert(j); - assert(unit); - - m1 = strjoina("_SYSTEMD_USER_UNIT=", unit); - m2 = strjoina("USER_UNIT=", unit); - m3 = strjoina("COREDUMP_USER_UNIT=", unit); - m4 = strjoina("OBJECT_SYSTEMD_USER_UNIT=", unit); - sprintf(muid, "_UID="UID_FMT, uid); - - (void) ( - /* Look for messages from the user service itself */ - (r = sd_journal_add_match(j, m1, 0)) || - (r = sd_journal_add_match(j, muid, 0)) || - - /* Look for messages from systemd about this service */ - (r = sd_journal_add_disjunction(j)) || - (r = sd_journal_add_match(j, m2, 0)) || - (r = sd_journal_add_match(j, muid, 0)) || - - /* Look for coredumps of the service */ - (r = sd_journal_add_disjunction(j)) || - (r = sd_journal_add_match(j, m3, 0)) || - (r = sd_journal_add_match(j, muid, 0)) || - (r = sd_journal_add_match(j, "_UID=0", 0)) || - - /* Look for messages from authorized daemons about this service */ - (r = sd_journal_add_disjunction(j)) || - (r = sd_journal_add_match(j, m4, 0)) || - (r = sd_journal_add_match(j, muid, 0)) || - (r = sd_journal_add_match(j, "_UID=0", 0)) - ); - - if (r == 0 && endswith(unit, ".slice")) { - const char *m5; - - m5 = strjoina("_SYSTEMD_SLICE=", unit); - - /* Show all messages belonging to a slice */ - (void)( - (r = sd_journal_add_disjunction(j)) || - (r = sd_journal_add_match(j, m5, 0)) || - (r = sd_journal_add_match(j, muid, 0)) - ); - } - - return r; -} - -static int get_boot_id_for_machine(const char *machine, sd_id128_t *boot_id) { - _cleanup_close_pair_ int pair[2] = { -1, -1 }; - _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1; - pid_t pid, child; - siginfo_t si; - char buf[37]; - ssize_t k; - int r; - - assert(machine); - assert(boot_id); - - if (!machine_name_is_valid(machine)) - return -EINVAL; - - r = container_get_leader(machine, &pid); - if (r < 0) - return r; - - r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, NULL, &rootfd); - if (r < 0) - return r; - - if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) - return -errno; - - child = fork(); - if (child < 0) - return -errno; - - if (child == 0) { - int fd; - - pair[0] = safe_close(pair[0]); - - r = namespace_enter(pidnsfd, mntnsfd, -1, -1, rootfd); - if (r < 0) - _exit(EXIT_FAILURE); - - fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY); - if (fd < 0) - _exit(EXIT_FAILURE); - - r = loop_read_exact(fd, buf, 36, false); - safe_close(fd); - if (r < 0) - _exit(EXIT_FAILURE); - - k = send(pair[1], buf, 36, MSG_NOSIGNAL); - if (k != 36) - _exit(EXIT_FAILURE); - - _exit(EXIT_SUCCESS); - } - - pair[1] = safe_close(pair[1]); - - r = wait_for_terminate(child, &si); - if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) - return r < 0 ? r : -EIO; - - k = recv(pair[0], buf, 36, 0); - if (k != 36) - return -EIO; - - buf[36] = 0; - r = sd_id128_from_string(buf, boot_id); - if (r < 0) - return r; - - return 0; -} - -int add_match_this_boot(sd_journal *j, const char *machine) { - char match[9+32+1] = "_BOOT_ID="; - sd_id128_t boot_id; - int r; - - assert(j); - - if (machine) { - r = get_boot_id_for_machine(machine, &boot_id); - if (r < 0) - return log_error_errno(r, "Failed to get boot id of container %s: %m", machine); - } else { - r = sd_id128_get_boot(&boot_id); - if (r < 0) - return log_error_errno(r, "Failed to get boot id: %m"); - } - - sd_id128_to_string(boot_id, match + 9); - 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 log_error_errno(r, "Failed to add conjunction: %m"); - - return 0; -} - -int show_journal_by_unit( - FILE *f, - const char *unit, - OutputMode mode, - unsigned n_columns, - usec_t not_before, - unsigned how_many, - uid_t uid, - OutputFlags flags, - int journal_open_flags, - bool system_unit, - bool *ellipsized) { - - _cleanup_(sd_journal_closep) sd_journal *j = NULL; - int r; - - assert(mode >= 0); - assert(mode < _OUTPUT_MODE_MAX); - assert(unit); - - if (how_many <= 0) - return 0; - - r = sd_journal_open(&j, journal_open_flags); - if (r < 0) - return log_error_errno(r, "Failed to open journal: %m"); - - r = add_match_this_boot(j, NULL); - if (r < 0) - return r; - - if (system_unit) - r = add_matches_for_unit(j, unit); - else - r = add_matches_for_user_unit(j, unit, uid); - if (r < 0) - return log_error_errno(r, "Failed to add unit matches: %m"); - - if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) { - _cleanup_free_ char *filter; - - filter = journal_make_match_string(j); - if (!filter) - return log_oom(); - - log_debug("Journal filter: %s", filter); - } - - return show_journal(f, j, mode, n_columns, not_before, how_many, flags, ellipsized); -} diff --git a/src/shared/logs-show.h b/src/shared/logs-show.h deleted file mode 100644 index 6643440881..0000000000 --- a/src/shared/logs-show.h +++ /dev/null @@ -1,70 +0,0 @@ -#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 <stddef.h> -#include <stdio.h> -#include <sys/types.h> - -#include "sd-journal.h" - -#include "macro.h" -#include "output-mode.h" -#include "time-util.h" -#include "util.h" - -int output_journal( - FILE *f, - sd_journal *j, - OutputMode mode, - unsigned n_columns, - OutputFlags flags, - bool *ellipsized); - -int add_match_this_boot(sd_journal *j, const char *machine); - -int add_matches_for_unit( - sd_journal *j, - const char *unit); - -int add_matches_for_user_unit( - sd_journal *j, - const char *unit, - uid_t uid); - -int show_journal_by_unit( - FILE *f, - const char *unit, - OutputMode mode, - unsigned n_columns, - usec_t not_before, - unsigned how_many, - uid_t uid, - OutputFlags flags, - int journal_open_flags, - bool system_unit, - bool *ellipsized); - -void json_escape( - FILE *f, - const char* p, - size_t l, - OutputFlags flags); diff --git a/src/shared/machine-image.c b/src/shared/machine-image.c deleted file mode 100644 index 060f8d50c7..0000000000 --- a/src/shared/machine-image.c +++ /dev/null @@ -1,817 +0,0 @@ -/*** - 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 <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/file.h> -#include <sys/stat.h> -#include <unistd.h> -#include <linux/fs.h> -#include "alloc-util.h" -#include "btrfs-util.h" -#include "chattr-util.h" -#include "copy.h" -#include "dirent-util.h" -#include "fd-util.h" -#include "fs-util.h" -#include "hashmap.h" -#include "lockfile-util.h" -#include "log.h" -#include "macro.h" -#include "machine-image.h" -#include "mkdir.h" -#include "path-util.h" -#include "rm-rf.h" -#include "string-table.h" -#include "string-util.h" -#include "strv.h" -#include "time-util.h" -#include "utf8.h" -#include "util.h" -#include "xattr-util.h" - -static const char image_search_path[] = - "/var/lib/machines\0" - "/var/lib/container\0" /* legacy */ - "/usr/local/lib/machines\0" - "/usr/lib/machines\0"; - -Image *image_unref(Image *i) { - if (!i) - return NULL; - - free(i->name); - free(i->path); - return mfree(i); -} - -static char **image_settings_path(Image *image) { - _cleanup_strv_free_ char **l = NULL; - char **ret; - const char *fn, *s; - unsigned i = 0; - - assert(image); - - l = new0(char*, 4); - if (!l) - return NULL; - - fn = strjoina(image->name, ".nspawn"); - - FOREACH_STRING(s, "/etc/systemd/nspawn/", "/run/systemd/nspawn/") { - l[i] = strappend(s, fn); - if (!l[i]) - return NULL; - - i++; - } - - l[i] = file_in_same_dir(image->path, fn); - if (!l[i]) - return NULL; - - ret = l; - l = NULL; - - return ret; -} - -static int image_new( - ImageType t, - const char *pretty, - const char *path, - const char *filename, - bool read_only, - usec_t crtime, - usec_t mtime, - Image **ret) { - - _cleanup_(image_unrefp) Image *i = NULL; - - assert(t >= 0); - assert(t < _IMAGE_TYPE_MAX); - assert(pretty); - assert(filename); - assert(ret); - - i = new0(Image, 1); - if (!i) - return -ENOMEM; - - i->type = t; - i->read_only = read_only; - i->crtime = crtime; - i->mtime = mtime; - i->usage = i->usage_exclusive = (uint64_t) -1; - i->limit = i->limit_exclusive = (uint64_t) -1; - - i->name = strdup(pretty); - if (!i->name) - return -ENOMEM; - - if (path) - i->path = strjoin(path, "/", filename, NULL); - else - i->path = strdup(filename); - - if (!i->path) - return -ENOMEM; - - path_kill_slashes(i->path); - - *ret = i; - i = NULL; - - return 0; -} - -static int image_make( - const char *pretty, - int dfd, - const char *path, - const char *filename, - Image **ret) { - - struct stat st; - bool read_only; - int r; - - assert(filename); - - /* We explicitly *do* follow symlinks here, since we want to - * allow symlinking trees into /var/lib/machines/, and treat - * them normally. */ - - if (fstatat(dfd, filename, &st, 0) < 0) - return -errno; - - read_only = - (path && path_startswith(path, "/usr")) || - (faccessat(dfd, filename, W_OK, AT_EACCESS) < 0 && errno == EROFS); - - if (S_ISDIR(st.st_mode)) { - _cleanup_close_ int fd = -1; - unsigned file_attr = 0; - - if (!ret) - return 1; - - if (!pretty) - pretty = filename; - - fd = openat(dfd, filename, O_CLOEXEC|O_NOCTTY|O_DIRECTORY); - if (fd < 0) - return -errno; - - /* btrfs subvolumes have inode 256 */ - if (st.st_ino == 256) { - - r = btrfs_is_filesystem(fd); - if (r < 0) - return r; - if (r) { - BtrfsSubvolInfo info; - - /* It's a btrfs subvolume */ - - r = btrfs_subvol_get_info_fd(fd, 0, &info); - if (r < 0) - return r; - - r = image_new(IMAGE_SUBVOLUME, - pretty, - path, - filename, - info.read_only || read_only, - info.otime, - 0, - ret); - if (r < 0) - return r; - - if (btrfs_quota_scan_ongoing(fd) == 0) { - BtrfsQuotaInfo quota; - - r = btrfs_subvol_get_subtree_quota_fd(fd, 0, "a); - if (r >= 0) { - (*ret)->usage = quota.referenced; - (*ret)->usage_exclusive = quota.exclusive; - - (*ret)->limit = quota.referenced_max; - (*ret)->limit_exclusive = quota.exclusive_max; - } - } - - return 1; - } - } - - /* If the IMMUTABLE bit is set, we consider the - * directory read-only. Since the ioctl is not - * supported everywhere we ignore failures. */ - (void) read_attr_fd(fd, &file_attr); - - /* It's just a normal directory. */ - r = image_new(IMAGE_DIRECTORY, - pretty, - path, - filename, - read_only || (file_attr & FS_IMMUTABLE_FL), - 0, - 0, - ret); - if (r < 0) - return r; - - return 1; - - } else if (S_ISREG(st.st_mode) && endswith(filename, ".raw")) { - usec_t crtime = 0; - - /* It's a RAW disk image */ - - if (!ret) - return 1; - - fd_getcrtime_at(dfd, filename, &crtime, 0); - - if (!pretty) - pretty = strndupa(filename, strlen(filename) - 4); - - r = image_new(IMAGE_RAW, - pretty, - path, - filename, - !(st.st_mode & 0222) || read_only, - crtime, - timespec_load(&st.st_mtim), - ret); - if (r < 0) - return r; - - (*ret)->usage = (*ret)->usage_exclusive = st.st_blocks * 512; - (*ret)->limit = (*ret)->limit_exclusive = st.st_size; - - return 1; - } - - return 0; -} - -int image_find(const char *name, Image **ret) { - const char *path; - int r; - - assert(name); - - /* There are no images with invalid names */ - if (!image_name_is_valid(name)) - return 0; - - NULSTR_FOREACH(path, image_search_path) { - _cleanup_closedir_ DIR *d = NULL; - - d = opendir(path); - if (!d) { - if (errno == ENOENT) - continue; - - return -errno; - } - - r = image_make(NULL, dirfd(d), path, name, ret); - if (r == 0 || r == -ENOENT) { - _cleanup_free_ char *raw = NULL; - - raw = strappend(name, ".raw"); - if (!raw) - return -ENOMEM; - - r = image_make(NULL, dirfd(d), path, raw, ret); - if (r == 0 || r == -ENOENT) - continue; - } - if (r < 0) - return r; - - return 1; - } - - if (streq(name, ".host")) - return image_make(".host", AT_FDCWD, NULL, "/", ret); - - return 0; -}; - -int image_discover(Hashmap *h) { - const char *path; - int r; - - assert(h); - - NULSTR_FOREACH(path, image_search_path) { - _cleanup_closedir_ DIR *d = NULL; - struct dirent *de; - - d = opendir(path); - if (!d) { - if (errno == ENOENT) - continue; - - return -errno; - } - - FOREACH_DIRENT_ALL(de, d, return -errno) { - _cleanup_(image_unrefp) Image *image = NULL; - - if (!image_name_is_valid(de->d_name)) - continue; - - if (hashmap_contains(h, de->d_name)) - continue; - - r = image_make(NULL, dirfd(d), path, de->d_name, &image); - if (r == 0 || r == -ENOENT) - continue; - if (r < 0) - return r; - - r = hashmap_put(h, image->name, image); - if (r < 0) - return r; - - image = NULL; - } - } - - if (!hashmap_contains(h, ".host")) { - _cleanup_(image_unrefp) Image *image = NULL; - - r = image_make(".host", AT_FDCWD, NULL, "/", &image); - if (r < 0) - return r; - - r = hashmap_put(h, image->name, image); - if (r < 0) - return r; - - image = NULL; - - } - - return 0; -} - -void image_hashmap_free(Hashmap *map) { - Image *i; - - while ((i = hashmap_steal_first(map))) - image_unref(i); - - hashmap_free(map); -} - -int image_remove(Image *i) { - _cleanup_release_lock_file_ LockFile global_lock = LOCK_FILE_INIT, local_lock = LOCK_FILE_INIT; - _cleanup_strv_free_ char **settings = NULL; - char **j; - int r; - - assert(i); - - if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i)) - return -EROFS; - - settings = image_settings_path(i); - if (!settings) - return -ENOMEM; - - /* Make sure we don't interfere with a running nspawn */ - r = image_path_lock(i->path, LOCK_EX|LOCK_NB, &global_lock, &local_lock); - if (r < 0) - return r; - - switch (i->type) { - - case IMAGE_SUBVOLUME: - r = btrfs_subvol_remove(i->path, BTRFS_REMOVE_RECURSIVE|BTRFS_REMOVE_QUOTA); - if (r < 0) - return r; - break; - - case IMAGE_DIRECTORY: - /* Allow deletion of read-only directories */ - (void) chattr_path(i->path, 0, FS_IMMUTABLE_FL); - r = rm_rf(i->path, REMOVE_ROOT|REMOVE_PHYSICAL|REMOVE_SUBVOLUME); - if (r < 0) - return r; - - break; - - case IMAGE_RAW: - if (unlink(i->path) < 0) - return -errno; - break; - - default: - return -EOPNOTSUPP; - } - - STRV_FOREACH(j, settings) { - if (unlink(*j) < 0 && errno != ENOENT) - log_debug_errno(errno, "Failed to unlink %s, ignoring: %m", *j); - } - - return 0; -} - -static int rename_settings_file(const char *path, const char *new_name) { - _cleanup_free_ char *rs = NULL; - const char *fn; - - fn = strjoina(new_name, ".nspawn"); - - rs = file_in_same_dir(path, fn); - if (!rs) - return -ENOMEM; - - return rename_noreplace(AT_FDCWD, path, AT_FDCWD, rs); -} - -int image_rename(Image *i, const char *new_name) { - _cleanup_release_lock_file_ LockFile global_lock = LOCK_FILE_INIT, local_lock = LOCK_FILE_INIT, name_lock = LOCK_FILE_INIT; - _cleanup_free_ char *new_path = NULL, *nn = NULL; - _cleanup_strv_free_ char **settings = NULL; - unsigned file_attr = 0; - char **j; - int r; - - assert(i); - - if (!image_name_is_valid(new_name)) - return -EINVAL; - - if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i)) - return -EROFS; - - settings = image_settings_path(i); - if (!settings) - return -ENOMEM; - - /* Make sure we don't interfere with a running nspawn */ - r = image_path_lock(i->path, LOCK_EX|LOCK_NB, &global_lock, &local_lock); - if (r < 0) - return r; - - /* Make sure nobody takes the new name, between the time we - * checked it is currently unused in all search paths, and the - * time we take possession of it */ - r = image_name_lock(new_name, LOCK_EX|LOCK_NB, &name_lock); - if (r < 0) - return r; - - r = image_find(new_name, NULL); - if (r < 0) - return r; - if (r > 0) - return -EEXIST; - - switch (i->type) { - - case IMAGE_DIRECTORY: - /* Turn of the immutable bit while we rename the image, so that we can rename it */ - (void) read_attr_path(i->path, &file_attr); - - if (file_attr & FS_IMMUTABLE_FL) - (void) chattr_path(i->path, 0, FS_IMMUTABLE_FL); - - /* fall through */ - - case IMAGE_SUBVOLUME: - new_path = file_in_same_dir(i->path, new_name); - break; - - case IMAGE_RAW: { - const char *fn; - - fn = strjoina(new_name, ".raw"); - new_path = file_in_same_dir(i->path, fn); - break; - } - - default: - return -EOPNOTSUPP; - } - - if (!new_path) - return -ENOMEM; - - nn = strdup(new_name); - if (!nn) - return -ENOMEM; - - r = rename_noreplace(AT_FDCWD, i->path, AT_FDCWD, new_path); - if (r < 0) - return r; - - /* Restore the immutable bit, if it was set before */ - if (file_attr & FS_IMMUTABLE_FL) - (void) chattr_path(new_path, FS_IMMUTABLE_FL, FS_IMMUTABLE_FL); - - free(i->path); - i->path = new_path; - new_path = NULL; - - free(i->name); - i->name = nn; - nn = NULL; - - STRV_FOREACH(j, settings) { - r = rename_settings_file(*j, new_name); - if (r < 0 && r != -ENOENT) - log_debug_errno(r, "Failed to rename settings file %s, ignoring: %m", *j); - } - - return 0; -} - -static int clone_settings_file(const char *path, const char *new_name) { - _cleanup_free_ char *rs = NULL; - const char *fn; - - fn = strjoina(new_name, ".nspawn"); - - rs = file_in_same_dir(path, fn); - if (!rs) - return -ENOMEM; - - return copy_file_atomic(path, rs, 0664, false, 0); -} - -int image_clone(Image *i, const char *new_name, bool read_only) { - _cleanup_release_lock_file_ LockFile name_lock = LOCK_FILE_INIT; - _cleanup_strv_free_ char **settings = NULL; - const char *new_path; - char **j; - int r; - - assert(i); - - if (!image_name_is_valid(new_name)) - return -EINVAL; - - settings = image_settings_path(i); - if (!settings) - return -ENOMEM; - - /* Make sure nobody takes the new name, between the time we - * checked it is currently unused in all search paths, and the - * time we take possession of it */ - r = image_name_lock(new_name, LOCK_EX|LOCK_NB, &name_lock); - if (r < 0) - return r; - - r = image_find(new_name, NULL); - if (r < 0) - return r; - if (r > 0) - return -EEXIST; - - switch (i->type) { - - case IMAGE_SUBVOLUME: - case IMAGE_DIRECTORY: - /* If we can we'll always try to create a new btrfs subvolume here, even if the source is a plain - * directory.*/ - - new_path = strjoina("/var/lib/machines/", new_name); - - r = btrfs_subvol_snapshot(i->path, new_path, (read_only ? BTRFS_SNAPSHOT_READ_ONLY : 0) | BTRFS_SNAPSHOT_FALLBACK_COPY | BTRFS_SNAPSHOT_RECURSIVE | BTRFS_SNAPSHOT_QUOTA); - if (r == -EOPNOTSUPP) { - /* No btrfs snapshots supported, create a normal directory then. */ - - r = copy_directory(i->path, new_path, false); - if (r >= 0) - (void) chattr_path(new_path, read_only ? FS_IMMUTABLE_FL : 0, FS_IMMUTABLE_FL); - } else if (r >= 0) - /* Enable "subtree" quotas for the copy, if we didn't copy any quota from the source. */ - (void) btrfs_subvol_auto_qgroup(new_path, 0, true); - - break; - - case IMAGE_RAW: - new_path = strjoina("/var/lib/machines/", new_name, ".raw"); - - r = copy_file_atomic(i->path, new_path, read_only ? 0444 : 0644, false, FS_NOCOW_FL); - break; - - default: - return -EOPNOTSUPP; - } - - if (r < 0) - return r; - - STRV_FOREACH(j, settings) { - r = clone_settings_file(*j, new_name); - if (r < 0 && r != -ENOENT) - log_debug_errno(r, "Failed to clone settings %s, ignoring: %m", *j); - } - - return 0; -} - -int image_read_only(Image *i, bool b) { - _cleanup_release_lock_file_ LockFile global_lock = LOCK_FILE_INIT, local_lock = LOCK_FILE_INIT; - int r; - assert(i); - - if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i)) - return -EROFS; - - /* Make sure we don't interfere with a running nspawn */ - r = image_path_lock(i->path, LOCK_EX|LOCK_NB, &global_lock, &local_lock); - if (r < 0) - return r; - - switch (i->type) { - - case IMAGE_SUBVOLUME: - - /* Note that we set the flag only on the top-level - * subvolume of the image. */ - - r = btrfs_subvol_set_read_only(i->path, b); - if (r < 0) - return r; - - break; - - case IMAGE_DIRECTORY: - /* For simple directory trees we cannot use the access - mode of the top-level directory, since it has an - effect on the container itself. However, we can - use the "immutable" flag, to at least make the - top-level directory read-only. It's not as good as - a read-only subvolume, but at least something, and - we can read the value back.*/ - - r = chattr_path(i->path, b ? FS_IMMUTABLE_FL : 0, FS_IMMUTABLE_FL); - if (r < 0) - return r; - - break; - - case IMAGE_RAW: { - struct stat st; - - if (stat(i->path, &st) < 0) - return -errno; - - if (chmod(i->path, (st.st_mode & 0444) | (b ? 0000 : 0200)) < 0) - return -errno; - - /* If the images is now read-only, it's a good time to - * defrag it, given that no write patterns will - * fragment it again. */ - if (b) - (void) btrfs_defrag(i->path); - break; - } - - default: - return -EOPNOTSUPP; - } - - return 0; -} - -int image_path_lock(const char *path, int operation, LockFile *global, LockFile *local) { - _cleanup_free_ char *p = NULL; - LockFile t = LOCK_FILE_INIT; - struct stat st; - int r; - - assert(path); - assert(global); - assert(local); - - /* Locks an image path. This actually creates two locks: one - * "local" one, next to the image path itself, which might be - * shared via NFS. And another "global" one, in /run, that - * uses the device/inode number. This has the benefit that we - * can even lock a tree that is a mount point, correctly. */ - - if (path_equal(path, "/")) - return -EBUSY; - - if (!path_is_absolute(path)) - return -EINVAL; - - if (stat(path, &st) >= 0) { - if (asprintf(&p, "/run/systemd/nspawn/locks/inode-%lu:%lu", (unsigned long) st.st_dev, (unsigned long) st.st_ino) < 0) - return -ENOMEM; - } - - r = make_lock_file_for(path, operation, &t); - if (r < 0) - return r; - - if (p) { - mkdir_p("/run/systemd/nspawn/locks", 0700); - - r = make_lock_file(p, operation, global); - if (r < 0) { - release_lock_file(&t); - return r; - } - } - - *local = t; - return 0; -} - -int image_set_limit(Image *i, uint64_t referenced_max) { - assert(i); - - if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i)) - return -EROFS; - - if (i->type != IMAGE_SUBVOLUME) - return -EOPNOTSUPP; - - /* We set the quota both for the subvolume as well as for the - * subtree. The latter is mostly for historical reasons, since - * we didn't use to have a concept of subtree quota, and hence - * only modified the subvolume quota. */ - - (void) btrfs_qgroup_set_limit(i->path, 0, referenced_max); - (void) btrfs_subvol_auto_qgroup(i->path, 0, true); - return btrfs_subvol_set_subtree_quota_limit(i->path, 0, referenced_max); -} - -int image_name_lock(const char *name, int operation, LockFile *ret) { - const char *p; - - assert(name); - assert(ret); - - /* Locks an image name, regardless of the precise path used. */ - - if (!image_name_is_valid(name)) - return -EINVAL; - - if (streq(name, ".host")) - return -EBUSY; - - mkdir_p("/run/systemd/nspawn/locks", 0700); - p = strjoina("/run/systemd/nspawn/locks/name-", name); - - return make_lock_file(p, operation, ret); -} - -bool image_name_is_valid(const char *s) { - if (!filename_is_valid(s)) - return false; - - if (string_has_cc(s, NULL)) - return false; - - if (!utf8_is_valid(s)) - return false; - - /* Temporary files for atomically creating new files */ - if (startswith(s, ".#")) - return false; - - return true; -} - -static const char* const image_type_table[_IMAGE_TYPE_MAX] = { - [IMAGE_DIRECTORY] = "directory", - [IMAGE_SUBVOLUME] = "subvolume", - [IMAGE_RAW] = "raw", -}; - -DEFINE_STRING_TABLE_LOOKUP(image_type, ImageType); diff --git a/src/shared/machine-image.h b/src/shared/machine-image.h deleted file mode 100644 index 7410168c4f..0000000000 --- a/src/shared/machine-image.h +++ /dev/null @@ -1,103 +0,0 @@ -#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 <stdbool.h> -#include <stdint.h> - -#include "hashmap.h" -#include "lockfile-util.h" -#include "macro.h" -#include "path-util.h" -#include "string-util.h" -#include "time-util.h" - -typedef enum ImageType { - IMAGE_DIRECTORY, - IMAGE_SUBVOLUME, - IMAGE_RAW, - _IMAGE_TYPE_MAX, - _IMAGE_TYPE_INVALID = -1 -} ImageType; - -typedef struct Image { - ImageType type; - char *name; - char *path; - bool read_only; - - usec_t crtime; - usec_t mtime; - - uint64_t usage; - uint64_t usage_exclusive; - uint64_t limit; - uint64_t limit_exclusive; - - void *userdata; -} Image; - -Image *image_unref(Image *i); -void image_hashmap_free(Hashmap *map); - -DEFINE_TRIVIAL_CLEANUP_FUNC(Image*, image_unref); -DEFINE_TRIVIAL_CLEANUP_FUNC(Hashmap*, image_hashmap_free); - -int image_find(const char *name, Image **ret); -int image_discover(Hashmap *map); - -int image_remove(Image *i); -int image_rename(Image *i, const char *new_name); -int image_clone(Image *i, const char *new_name, bool read_only); -int image_read_only(Image *i, bool b); - -const char* image_type_to_string(ImageType t) _const_; -ImageType image_type_from_string(const char *s) _pure_; - -bool image_name_is_valid(const char *s) _pure_; - -int image_path_lock(const char *path, int operation, LockFile *global, LockFile *local); -int image_name_lock(const char *name, int operation, LockFile *ret); - -int image_set_limit(Image *i, uint64_t referenced_max); - -static inline bool IMAGE_IS_HIDDEN(const struct Image *i) { - assert(i); - - return i->name && i->name[0] == '.'; -} - -static inline bool IMAGE_IS_VENDOR(const struct Image *i) { - assert(i); - - return i->path && path_startswith(i->path, "/usr"); -} - -static inline bool IMAGE_IS_HOST(const struct Image *i) { - assert(i); - - if (i->name && streq(i->name, ".host")) - return true; - - if (i->path && path_equal(i->path, "/")) - return true; - - return false; -} diff --git a/src/shared/machine-pool.c b/src/shared/machine-pool.c deleted file mode 100644 index 23890c63a0..0000000000 --- a/src/shared/machine-pool.c +++ /dev/null @@ -1,426 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2015 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 <linux/loop.h> -#include <signal.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdlib.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <sys/mount.h> -#include <sys/prctl.h> -#include <sys/stat.h> -#include <sys/statfs.h> -#include <sys/statvfs.h> -#include <unistd.h> - -#include "sd-bus-protocol.h" -#include "sd-bus.h" - -#include "alloc-util.h" -#include "btrfs-util.h" -#include "fd-util.h" -#include "fileio.h" -#include "fs-util.h" -#include "lockfile-util.h" -#include "log.h" -#include "machine-pool.h" -#include "macro.h" -#include "missing.h" -#include "mkdir.h" -#include "mount-util.h" -#include "parse-util.h" -#include "path-util.h" -#include "process-util.h" -#include "signal-util.h" -#include "stat-util.h" -#include "string-util.h" - -#define VAR_LIB_MACHINES_SIZE_START (1024UL*1024UL*500UL) -#define VAR_LIB_MACHINES_FREE_MIN (1024UL*1024UL*750UL) - -static int check_btrfs(void) { - struct statfs sfs; - - if (statfs("/var/lib/machines", &sfs) < 0) { - if (errno != ENOENT) - return -errno; - - if (statfs("/var/lib", &sfs) < 0) - return -errno; - } - - return F_TYPE_EQUAL(sfs.f_type, BTRFS_SUPER_MAGIC); -} - -static int setup_machine_raw(uint64_t size, sd_bus_error *error) { - _cleanup_free_ char *tmp = NULL; - _cleanup_close_ int fd = -1; - struct statvfs ss; - pid_t pid = 0; - siginfo_t si; - int r; - - /* We want to be able to make use of btrfs-specific file - * system features, in particular subvolumes, reflinks and - * quota. Hence, if we detect that /var/lib/machines.raw is - * not located on btrfs, let's create a loopback file, place a - * btrfs file system into it, and mount it to - * /var/lib/machines. */ - - fd = open("/var/lib/machines.raw", O_RDWR|O_CLOEXEC|O_NONBLOCK|O_NOCTTY); - if (fd >= 0) { - r = fd; - fd = -1; - return r; - } - - if (errno != ENOENT) - return sd_bus_error_set_errnof(error, errno, "Failed to open /var/lib/machines.raw: %m"); - - r = tempfn_xxxxxx("/var/lib/machines.raw", NULL, &tmp); - if (r < 0) - return r; - - (void) mkdir_p_label("/var/lib", 0755); - fd = open(tmp, O_RDWR|O_CREAT|O_EXCL|O_NOCTTY|O_CLOEXEC, 0600); - if (fd < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to create /var/lib/machines.raw: %m"); - - if (fstatvfs(fd, &ss) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to determine free space on /var/lib/machines.raw: %m"); - goto fail; - } - - if (ss.f_bsize * ss.f_bavail < VAR_LIB_MACHINES_FREE_MIN) { - r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Not enough free disk space to set up /var/lib/machines."); - goto fail; - } - - if (ftruncate(fd, size) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to enlarge /var/lib/machines.raw: %m"); - goto fail; - } - - pid = fork(); - if (pid < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to fork mkfs.btrfs: %m"); - goto fail; - } - - if (pid == 0) { - - /* Child */ - - (void) reset_all_signal_handlers(); - (void) reset_signal_mask(); - assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); - - fd = safe_close(fd); - - execlp("mkfs.btrfs", "-Lvar-lib-machines", tmp, NULL); - if (errno == ENOENT) - _exit(99); - - _exit(EXIT_FAILURE); - } - - r = wait_for_terminate(pid, &si); - if (r < 0) { - sd_bus_error_set_errnof(error, r, "Failed to wait for mkfs.btrfs: %m"); - goto fail; - } - - pid = 0; - - if (si.si_code != CLD_EXITED) { - r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "mkfs.btrfs died abnormally."); - goto fail; - } - if (si.si_status == 99) { - r = sd_bus_error_set_errnof(error, ENOENT, "Cannot set up /var/lib/machines, mkfs.btrfs is missing"); - goto fail; - } - if (si.si_status != 0) { - r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "mkfs.btrfs failed with error code %i", si.si_status); - goto fail; - } - - r = rename_noreplace(AT_FDCWD, tmp, AT_FDCWD, "/var/lib/machines.raw"); - if (r < 0) { - sd_bus_error_set_errnof(error, r, "Failed to move /var/lib/machines.raw into place: %m"); - goto fail; - } - - r = fd; - fd = -1; - - return r; - -fail: - unlink_noerrno(tmp); - - if (pid > 1) - kill_and_sigcont(pid, SIGKILL); - - return r; -} - -int setup_machine_directory(uint64_t size, sd_bus_error *error) { - _cleanup_release_lock_file_ LockFile lock_file = LOCK_FILE_INIT; - struct loop_info64 info = { - .lo_flags = LO_FLAGS_AUTOCLEAR, - }; - _cleanup_close_ int fd = -1, control = -1, loop = -1; - _cleanup_free_ char* loopdev = NULL; - char tmpdir[] = "/tmp/machine-pool.XXXXXX", *mntdir = NULL; - bool tmpdir_made = false, mntdir_made = false, mntdir_mounted = false; - char buf[FORMAT_BYTES_MAX]; - int r, nr = -1; - - /* btrfs cannot handle file systems < 16M, hence use this as minimum */ - if (size == (uint64_t) -1) - size = VAR_LIB_MACHINES_SIZE_START; - else if (size < 16*1024*1024) - size = 16*1024*1024; - - /* Make sure we only set the directory up once at a time */ - r = make_lock_file("/run/systemd/machines.lock", LOCK_EX, &lock_file); - if (r < 0) - return r; - - r = check_btrfs(); - if (r < 0) - return sd_bus_error_set_errnof(error, r, "Failed to determine whether /var/lib/machines is located on btrfs: %m"); - if (r > 0) { - (void) btrfs_subvol_make_label("/var/lib/machines"); - - r = btrfs_quota_enable("/var/lib/machines", true); - if (r < 0) - log_warning_errno(r, "Failed to enable quota for /var/lib/machines, ignoring: %m"); - - r = btrfs_subvol_auto_qgroup("/var/lib/machines", 0, true); - if (r < 0) - log_warning_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines, ignoring: %m"); - - return 1; - } - - if (path_is_mount_point("/var/lib/machines", AT_SYMLINK_FOLLOW) > 0) { - log_debug("/var/lib/machines is already a mount point, not creating loopback file for it."); - return 0; - } - - r = dir_is_populated("/var/lib/machines"); - if (r < 0 && r != -ENOENT) - return r; - if (r > 0) { - log_debug("/var/log/machines is already populated, not creating loopback file for it."); - return 0; - } - - r = mkfs_exists("btrfs"); - if (r == 0) - return sd_bus_error_set_errnof(error, ENOENT, "Cannot set up /var/lib/machines, mkfs.btrfs is missing"); - if (r < 0) - return r; - - fd = setup_machine_raw(size, error); - if (fd < 0) - return fd; - - control = open("/dev/loop-control", O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK); - if (control < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to open /dev/loop-control: %m"); - - nr = ioctl(control, LOOP_CTL_GET_FREE); - if (nr < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to allocate loop device: %m"); - - if (asprintf(&loopdev, "/dev/loop%i", nr) < 0) { - r = -ENOMEM; - goto fail; - } - - loop = open(loopdev, O_CLOEXEC|O_RDWR|O_NOCTTY|O_NONBLOCK); - if (loop < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to open loopback device: %m"); - goto fail; - } - - if (ioctl(loop, LOOP_SET_FD, fd) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to bind loopback device: %m"); - goto fail; - } - - if (ioctl(loop, LOOP_SET_STATUS64, &info) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to enable auto-clear for loopback device: %m"); - goto fail; - } - - /* We need to make sure the new /var/lib/machines directory - * has an access mode of 0700 at the time it is first made - * available. mkfs will create it with 0755 however. Hence, - * let's mount the directory into an inaccessible directory - * below /tmp first, fix the access mode, and move it to the - * public place then. */ - - if (!mkdtemp(tmpdir)) { - r = sd_bus_error_set_errnof(error, errno, "Failed to create temporary mount parent directory: %m"); - goto fail; - } - tmpdir_made = true; - - mntdir = strjoina(tmpdir, "/mnt"); - if (mkdir(mntdir, 0700) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to create temporary mount directory: %m"); - goto fail; - } - mntdir_made = true; - - if (mount(loopdev, mntdir, "btrfs", 0, NULL) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to mount loopback device: %m"); - goto fail; - } - mntdir_mounted = true; - - r = btrfs_quota_enable(mntdir, true); - if (r < 0) - log_warning_errno(r, "Failed to enable quota, ignoring: %m"); - - r = btrfs_subvol_auto_qgroup(mntdir, 0, true); - if (r < 0) - log_warning_errno(r, "Failed to set up default quota hierarchy, ignoring: %m"); - - if (chmod(mntdir, 0700) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to fix owner: %m"); - goto fail; - } - - (void) mkdir_p_label("/var/lib/machines", 0700); - - if (mount(mntdir, "/var/lib/machines", NULL, MS_BIND, NULL) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to mount directory into right place: %m"); - goto fail; - } - - (void) syncfs(fd); - - log_info("Set up /var/lib/machines as btrfs loopback file system of size %s mounted on /var/lib/machines.raw.", format_bytes(buf, sizeof(buf), size)); - - (void) umount2(mntdir, MNT_DETACH); - (void) rmdir(mntdir); - (void) rmdir(tmpdir); - - return 1; - -fail: - if (mntdir_mounted) - (void) umount2(mntdir, MNT_DETACH); - - if (mntdir_made) - (void) rmdir(mntdir); - if (tmpdir_made) - (void) rmdir(tmpdir); - - if (loop >= 0) { - (void) ioctl(loop, LOOP_CLR_FD); - loop = safe_close(loop); - } - - if (control >= 0 && nr >= 0) - (void) ioctl(control, LOOP_CTL_REMOVE, nr); - - return r; -} - -static int sync_path(const char *p) { - _cleanup_close_ int fd = -1; - - fd = open(p, O_RDONLY|O_CLOEXEC|O_NOCTTY); - if (fd < 0) - return -errno; - - if (syncfs(fd) < 0) - return -errno; - - return 0; -} - -int grow_machine_directory(void) { - char buf[FORMAT_BYTES_MAX]; - struct statvfs a, b; - uint64_t old_size, new_size, max_add; - int r; - - /* Ensure the disk space data is accurate */ - sync_path("/var/lib/machines"); - sync_path("/var/lib/machines.raw"); - - if (statvfs("/var/lib/machines.raw", &a) < 0) - return -errno; - - if (statvfs("/var/lib/machines", &b) < 0) - return -errno; - - /* Don't grow if not enough disk space is available on the host */ - if (((uint64_t) a.f_bavail * (uint64_t) a.f_bsize) <= VAR_LIB_MACHINES_FREE_MIN) - return 0; - - /* Don't grow if at least 1/3th of the fs is still free */ - if (b.f_bavail > b.f_blocks / 3) - return 0; - - /* Calculate how much we are willing to add at most */ - max_add = ((uint64_t) a.f_bavail * (uint64_t) a.f_bsize) - VAR_LIB_MACHINES_FREE_MIN; - - /* Calculate the old size */ - old_size = (uint64_t) b.f_blocks * (uint64_t) b.f_bsize; - - /* Calculate the new size as three times the size of what is used right now */ - new_size = ((uint64_t) b.f_blocks - (uint64_t) b.f_bavail) * (uint64_t) b.f_bsize * 3; - - /* Always, grow at least to the start size */ - if (new_size < VAR_LIB_MACHINES_SIZE_START) - new_size = VAR_LIB_MACHINES_SIZE_START; - - /* If the new size is smaller than the old size, don't grow */ - if (new_size < old_size) - return 0; - - /* Ensure we never add more than the maximum */ - if (new_size > old_size + max_add) - new_size = old_size + max_add; - - r = btrfs_resize_loopback("/var/lib/machines", new_size, true); - if (r <= 0) - return r; - - /* Also bump the quota, of both the subvolume leaf qgroup, as - * well as of any subtree quota group by the same id but a - * higher level, if it exists. */ - (void) btrfs_qgroup_set_limit("/var/lib/machines", 0, new_size); - (void) btrfs_subvol_set_subtree_quota_limit("/var/lib/machines", 0, new_size); - - log_info("Grew /var/lib/machines btrfs loopback file system to %s.", format_bytes(buf, sizeof(buf), new_size)); - return 1; -} diff --git a/src/shared/machine-pool.h b/src/shared/machine-pool.h deleted file mode 100644 index 40fe5ecb3a..0000000000 --- a/src/shared/machine-pool.h +++ /dev/null @@ -1,30 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2015 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 <stdint.h> - -#include "sd-bus.h" - -/* Grow the /var/lib/machines directory after each 10MiB written */ -#define GROW_INTERVAL_BYTES (UINT64_C(10) * UINT64_C(1024) * UINT64_C(1024)) - -int setup_machine_directory(uint64_t size, sd_bus_error *error); -int grow_machine_directory(void); diff --git a/src/shared/output-mode.c b/src/shared/output-mode.c deleted file mode 100644 index 67d8208ad2..0000000000 --- a/src/shared/output-mode.c +++ /dev/null @@ -1,38 +0,0 @@ -/*** - 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 "output-mode.h" -#include "string-table.h" - -static const char *const output_mode_table[_OUTPUT_MODE_MAX] = { - [OUTPUT_SHORT] = "short", - [OUTPUT_SHORT_FULL] = "short-full", - [OUTPUT_SHORT_ISO] = "short-iso", - [OUTPUT_SHORT_PRECISE] = "short-precise", - [OUTPUT_SHORT_MONOTONIC] = "short-monotonic", - [OUTPUT_SHORT_UNIX] = "short-unix", - [OUTPUT_VERBOSE] = "verbose", - [OUTPUT_EXPORT] = "export", - [OUTPUT_JSON] = "json", - [OUTPUT_JSON_PRETTY] = "json-pretty", - [OUTPUT_JSON_SSE] = "json-sse", - [OUTPUT_CAT] = "cat" -}; - -DEFINE_STRING_TABLE_LOOKUP(output_mode, OutputMode); diff --git a/src/shared/output-mode.h b/src/shared/output-mode.h deleted file mode 100644 index ff29dafcb5..0000000000 --- a/src/shared/output-mode.h +++ /dev/null @@ -1,58 +0,0 @@ -#pragma once - -/*** - 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 "macro.h" - -typedef enum OutputMode { - OUTPUT_SHORT, - OUTPUT_SHORT_FULL, - OUTPUT_SHORT_ISO, - OUTPUT_SHORT_PRECISE, - OUTPUT_SHORT_MONOTONIC, - OUTPUT_SHORT_UNIX, - OUTPUT_VERBOSE, - OUTPUT_EXPORT, - OUTPUT_JSON, - OUTPUT_JSON_PRETTY, - OUTPUT_JSON_SSE, - OUTPUT_CAT, - _OUTPUT_MODE_MAX, - _OUTPUT_MODE_INVALID = -1 -} OutputMode; - -/* The output flags definitions are shared by the logs and process tree output. Some apply to both, some only to the - * logs output, others only to the process tree output. */ - -typedef enum OutputFlags { - OUTPUT_SHOW_ALL = 1 << 0, - OUTPUT_FOLLOW = 1 << 1, - OUTPUT_WARN_CUTOFF = 1 << 2, - OUTPUT_FULL_WIDTH = 1 << 3, - OUTPUT_COLOR = 1 << 4, - OUTPUT_CATALOG = 1 << 5, - OUTPUT_BEGIN_NEWLINE = 1 << 6, - OUTPUT_UTC = 1 << 7, - OUTPUT_KERNEL_THREADS = 1 << 8, - OUTPUT_NO_HOSTNAME = 1 << 9, -} OutputFlags; - -const char* output_mode_to_string(OutputMode m) _const_; -OutputMode output_mode_from_string(const char *s) _pure_; diff --git a/src/shared/pager.c b/src/shared/pager.c deleted file mode 100644 index 09672a4abf..0000000000 --- a/src/shared/pager.c +++ /dev/null @@ -1,227 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <signal.h> -#include <stddef.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/prctl.h> -#include <unistd.h> - -#include "copy.h" -#include "fd-util.h" -#include "locale-util.h" -#include "log.h" -#include "macro.h" -#include "pager.h" -#include "process-util.h" -#include "signal-util.h" -#include "string-util.h" -#include "strv.h" -#include "terminal-util.h" - -static pid_t pager_pid = 0; - -noreturn static void pager_fallback(void) { - int r; - - r = copy_bytes(STDIN_FILENO, STDOUT_FILENO, (uint64_t) -1, false); - if (r < 0) { - log_error_errno(r, "Internal pager failed: %m"); - _exit(EXIT_FAILURE); - } - - _exit(EXIT_SUCCESS); -} - -int pager_open(bool no_pager, bool jump_to_end) { - _cleanup_close_pair_ int fd[2] = { -1, -1 }; - const char *pager; - pid_t parent_pid; - - if (no_pager) - return 0; - - if (pager_pid > 0) - return 1; - - if (terminal_is_dumb()) - return 0; - - pager = getenv("SYSTEMD_PAGER"); - if (!pager) - pager = getenv("PAGER"); - - /* If the pager is explicitly turned off, honour it */ - if (pager && STR_IN_SET(pager, "", "cat")) - return 0; - - /* Determine and cache number of columns before we spawn the - * pager so that we get the value from the actual tty */ - (void) columns(); - - if (pipe(fd) < 0) - return log_error_errno(errno, "Failed to create pager pipe: %m"); - - parent_pid = getpid(); - - pager_pid = fork(); - if (pager_pid < 0) - return log_error_errno(errno, "Failed to fork pager: %m"); - - /* In the child start the pager */ - if (pager_pid == 0) { - const char* less_opts, *less_charset; - - (void) reset_all_signal_handlers(); - (void) reset_signal_mask(); - - (void) dup2(fd[0], STDIN_FILENO); - safe_close_pair(fd); - - /* Initialize a good set of less options */ - less_opts = getenv("SYSTEMD_LESS"); - if (!less_opts) - less_opts = "FRSXMK"; - if (jump_to_end) - less_opts = strjoina(less_opts, " +G"); - setenv("LESS", less_opts, 1); - - /* Initialize a good charset for less. This is - * particularly important if we output UTF-8 - * characters. */ - less_charset = getenv("SYSTEMD_LESSCHARSET"); - if (!less_charset && is_locale_utf8()) - less_charset = "utf-8"; - if (less_charset) - setenv("LESSCHARSET", less_charset, 1); - - /* Make sure the pager goes away when the parent dies */ - if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0) - _exit(EXIT_FAILURE); - - /* Check whether our parent died before we were able - * to set the death signal */ - if (getppid() != parent_pid) - _exit(EXIT_SUCCESS); - - if (pager) { - execlp(pager, pager, NULL); - execl("/bin/sh", "sh", "-c", pager, NULL); - } - - /* Debian's alternatives command for pagers is - * called 'pager'. Note that we do not call - * sensible-pagers here, since that is just a - * shell script that implements a logic that - * is similar to this one anyway, but is - * Debian-specific. */ - execlp("pager", "pager", NULL); - - execlp("less", "less", NULL); - execlp("more", "more", NULL); - - pager_fallback(); - /* not reached */ - } - - /* Return in the parent */ - if (dup2(fd[1], STDOUT_FILENO) < 0) - return log_error_errno(errno, "Failed to duplicate pager pipe: %m"); - if (dup2(fd[1], STDERR_FILENO) < 0) - return log_error_errno(errno, "Failed to duplicate pager pipe: %m"); - - return 1; -} - -void pager_close(void) { - - if (pager_pid <= 0) - return; - - /* Inform pager that we are done */ - stdout = safe_fclose(stdout); - stderr = safe_fclose(stderr); - - (void) kill(pager_pid, SIGCONT); - (void) wait_for_terminate(pager_pid, NULL); - pager_pid = 0; -} - -bool pager_have(void) { - return pager_pid > 0; -} - -int show_man_page(const char *desc, bool null_stdio) { - const char *args[4] = { "man", NULL, NULL, NULL }; - char *e = NULL; - pid_t pid; - size_t k; - int r; - siginfo_t status; - - k = strlen(desc); - - if (desc[k-1] == ')') - e = strrchr(desc, '('); - - if (e) { - char *page = NULL, *section = NULL; - - page = strndupa(desc, e - desc); - section = strndupa(e + 1, desc + k - e - 2); - - args[1] = section; - args[2] = page; - } else - args[1] = desc; - - pid = fork(); - if (pid < 0) - return log_error_errno(errno, "Failed to fork: %m"); - - if (pid == 0) { - /* Child */ - - (void) reset_all_signal_handlers(); - (void) reset_signal_mask(); - - if (null_stdio) { - r = make_null_stdio(); - if (r < 0) { - log_error_errno(r, "Failed to kill stdio: %m"); - _exit(EXIT_FAILURE); - } - } - - execvp(args[0], (char**) args); - log_error_errno(errno, "Failed to execute man: %m"); - _exit(EXIT_FAILURE); - } - - r = wait_for_terminate(pid, &status); - if (r < 0) - return r; - - log_debug("Exit code %i status %i", status.si_code, status.si_status); - return status.si_status; -} diff --git a/src/shared/pager.h b/src/shared/pager.h deleted file mode 100644 index 893e1d2bb6..0000000000 --- a/src/shared/pager.h +++ /dev/null @@ -1,30 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 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 "macro.h" - -int pager_open(bool no_pager, bool jump_to_end); -void pager_close(void); -bool pager_have(void) _pure_; - -int show_man_page(const char *page, bool null_stdio); diff --git a/src/shared/path-lookup.c b/src/shared/path-lookup.c deleted file mode 100644 index 862096ae7b..0000000000 --- a/src/shared/path-lookup.c +++ /dev/null @@ -1,822 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "alloc-util.h" -#include "install.h" -#include "log.h" -#include "macro.h" -#include "mkdir.h" -#include "path-lookup.h" -#include "path-util.h" -#include "rm-rf.h" -#include "stat-util.h" -#include "string-util.h" -#include "strv.h" -#include "util.h" - -static int user_runtime_dir(char **ret, const char *suffix) { - const char *e; - char *j; - - assert(ret); - assert(suffix); - - e = getenv("XDG_RUNTIME_DIR"); - if (!e) - return -ENXIO; - - j = strappend(e, suffix); - if (!j) - return -ENOMEM; - - *ret = j; - return 0; -} - -static int user_config_dir(char **ret, const char *suffix) { - const char *e; - char *j; - - assert(ret); - - e = getenv("XDG_CONFIG_HOME"); - if (e) - j = strappend(e, suffix); - else { - const char *home; - - home = getenv("HOME"); - if (!home) - return -ENXIO; - - j = strjoin(home, "/.config", suffix, NULL); - } - - if (!j) - return -ENOMEM; - - *ret = j; - return 0; -} - -static int user_data_dir(char **ret, const char *suffix) { - const char *e; - char *j; - - assert(ret); - assert(suffix); - - /* We don't treat /etc/xdg/systemd here as the spec - * suggests because we assume that is a link to - * /etc/systemd/ anyway. */ - - e = getenv("XDG_DATA_HOME"); - if (e) - j = strappend(e, suffix); - else { - const char *home; - - home = getenv("HOME"); - if (!home) - return -ENXIO; - - - j = strjoin(home, "/.local/share", suffix, NULL); - } - if (!j) - return -ENOMEM; - - *ret = j; - return 1; -} - -static char** user_dirs( - const char *persistent_config, - const char *runtime_config, - const char *generator, - const char *generator_early, - const char *generator_late, - const char *transient, - const char *persistent_control, - const char *runtime_control) { - - const char * const config_unit_paths[] = { - USER_CONFIG_UNIT_PATH, - "/etc/systemd/user", - NULL - }; - - const char * const data_unit_paths[] = { - "/usr/local/lib/systemd/user", - "/usr/local/share/systemd/user", - USER_DATA_UNIT_PATH, - "/usr/lib/systemd/user", - "/usr/share/systemd/user", - NULL - }; - - const char *e; - _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL; - _cleanup_free_ char *data_home = NULL; - _cleanup_free_ char **res = NULL; - char **tmp; - int r; - - /* Implement the mechanisms defined in - * - * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html - * - * We look in both the config and the data dirs because we - * want to encourage that distributors ship their unit files - * as data, and allow overriding as configuration. - */ - - e = getenv("XDG_CONFIG_DIRS"); - if (e) { - config_dirs = strv_split(e, ":"); - if (!config_dirs) - return NULL; - } - - r = user_data_dir(&data_home, "/systemd/user"); - if (r < 0 && r != -ENXIO) - return NULL; - - e = getenv("XDG_DATA_DIRS"); - if (e) - data_dirs = strv_split(e, ":"); - else - data_dirs = strv_new("/usr/local/share", - "/usr/share", - NULL); - if (!data_dirs) - return NULL; - - /* Now merge everything we found. */ - if (strv_extend(&res, persistent_control) < 0) - return NULL; - - if (strv_extend(&res, runtime_control) < 0) - return NULL; - - if (strv_extend(&res, transient) < 0) - return NULL; - - if (strv_extend(&res, generator_early) < 0) - return NULL; - - if (!strv_isempty(config_dirs)) - if (strv_extend_strv_concat(&res, config_dirs, "/systemd/user") < 0) - return NULL; - - if (strv_extend(&res, persistent_config) < 0) - return NULL; - - if (strv_extend_strv(&res, (char**) config_unit_paths, false) < 0) - return NULL; - - if (strv_extend(&res, runtime_config) < 0) - return NULL; - - if (strv_extend(&res, generator) < 0) - return NULL; - - if (strv_extend(&res, data_home) < 0) - return NULL; - - if (!strv_isempty(data_dirs)) - if (strv_extend_strv_concat(&res, data_dirs, "/systemd/user") < 0) - return NULL; - - if (strv_extend_strv(&res, (char**) data_unit_paths, false) < 0) - return NULL; - - if (strv_extend(&res, generator_late) < 0) - return NULL; - - if (path_strv_make_absolute_cwd(res) < 0) - return NULL; - - tmp = res; - res = NULL; - return tmp; -} - -static int acquire_generator_dirs( - UnitFileScope scope, - char **generator, - char **generator_early, - char **generator_late) { - - _cleanup_free_ char *x = NULL, *y = NULL, *z = NULL; - const char *prefix; - - assert(generator); - assert(generator_early); - assert(generator_late); - - switch (scope) { - - case UNIT_FILE_SYSTEM: - prefix = "/run/systemd/"; - break; - - case UNIT_FILE_USER: { - const char *e; - - e = getenv("XDG_RUNTIME_DIR"); - if (!e) - return -ENXIO; - - prefix = strjoina(e, "/systemd/"); - break; - } - - case UNIT_FILE_GLOBAL: - return -EOPNOTSUPP; - - default: - assert_not_reached("Hmm, unexpected scope value."); - } - - x = strappend(prefix, "generator"); - if (!x) - return -ENOMEM; - - y = strappend(prefix, "generator.early"); - if (!y) - return -ENOMEM; - - z = strappend(prefix, "generator.late"); - if (!z) - return -ENOMEM; - - *generator = x; - *generator_early = y; - *generator_late = z; - - x = y = z = NULL; - return 0; -} - -static int acquire_transient_dir(UnitFileScope scope, char **ret) { - assert(ret); - - switch (scope) { - - case UNIT_FILE_SYSTEM: { - char *transient; - - transient = strdup("/run/systemd/transient"); - if (!transient) - return -ENOMEM; - - *ret = transient; - return 0; - } - - case UNIT_FILE_USER: - return user_runtime_dir(ret, "/systemd/transient"); - - case UNIT_FILE_GLOBAL: - return -EOPNOTSUPP; - - default: - assert_not_reached("Hmm, unexpected scope value."); - } -} - -static int acquire_config_dirs(UnitFileScope scope, char **persistent, char **runtime) { - _cleanup_free_ char *a = NULL, *b = NULL; - int r; - - assert(persistent); - assert(runtime); - - switch (scope) { - - case UNIT_FILE_SYSTEM: - a = strdup(SYSTEM_CONFIG_UNIT_PATH); - b = strdup("/run/systemd/system"); - break; - - case UNIT_FILE_GLOBAL: - a = strdup(USER_CONFIG_UNIT_PATH); - b = strdup("/run/systemd/user"); - break; - - case UNIT_FILE_USER: - r = user_config_dir(&a, "/systemd/user"); - if (r < 0) - return r; - - r = user_runtime_dir(runtime, "/systemd/user"); - if (r < 0) - return r; - - *persistent = a; - a = NULL; - - return 0; - - default: - assert_not_reached("Hmm, unexpected scope value."); - } - - if (!a || !b) - return -ENOMEM; - - *persistent = a; - *runtime = b; - a = b = NULL; - - return 0; -} - -static int acquire_control_dirs(UnitFileScope scope, char **persistent, char **runtime) { - _cleanup_free_ char *a = NULL; - int r; - - assert(persistent); - assert(runtime); - - switch (scope) { - - case UNIT_FILE_SYSTEM: { - _cleanup_free_ char *b = NULL; - - a = strdup("/etc/systemd/system.control"); - if (!a) - return -ENOMEM; - - b = strdup("/run/systemd/system.control"); - if (!b) - return -ENOMEM; - - *runtime = b; - b = NULL; - - break; - } - - case UNIT_FILE_USER: - r = user_config_dir(&a, "/systemd/system.control"); - if (r < 0) - return r; - - r = user_runtime_dir(runtime, "/systemd/system.control"); - if (r < 0) - return r; - - break; - - case UNIT_FILE_GLOBAL: - return -EOPNOTSUPP; - - default: - assert_not_reached("Hmm, unexpected scope value."); - } - - *persistent = a; - a = NULL; - - return 0; -} - -static int patch_root_prefix(char **p, const char *root_dir) { - char *c; - - assert(p); - - if (!*p) - return 0; - - c = prefix_root(root_dir, *p); - if (!c) - return -ENOMEM; - - free(*p); - *p = c; - - return 0; -} - -static int patch_root_prefix_strv(char **l, const char *root_dir) { - char **i; - int r; - - if (!root_dir) - return 0; - - STRV_FOREACH(i, l) { - r = patch_root_prefix(i, root_dir); - if (r < 0) - return r; - } - - return 0; -} - -int lookup_paths_init( - LookupPaths *p, - UnitFileScope scope, - LookupPathsFlags flags, - const char *root_dir) { - - _cleanup_free_ char - *root = NULL, - *persistent_config = NULL, *runtime_config = NULL, - *generator = NULL, *generator_early = NULL, *generator_late = NULL, - *transient = NULL, - *persistent_control = NULL, *runtime_control = NULL; - bool append = false; /* Add items from SYSTEMD_UNIT_PATH before normal directories */ - _cleanup_strv_free_ char **paths = NULL; - const char *e; - int r; - - assert(p); - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - - if (!isempty(root_dir) && !path_equal(root_dir, "/")) { - if (scope == UNIT_FILE_USER) - return -EINVAL; - - r = is_dir(root_dir, true); - if (r < 0) - return r; - if (r == 0) - return -ENOTDIR; - - root = strdup(root_dir); - if (!root) - return -ENOMEM; - } - - r = acquire_config_dirs(scope, &persistent_config, &runtime_config); - if (r < 0 && r != -ENXIO) - return r; - - if ((flags & LOOKUP_PATHS_EXCLUDE_GENERATED) == 0) { - r = acquire_generator_dirs(scope, &generator, &generator_early, &generator_late); - if (r < 0 && r != -EOPNOTSUPP && r != -ENXIO) - return r; - } - - r = acquire_transient_dir(scope, &transient); - if (r < 0 && r != -EOPNOTSUPP && r != -ENXIO) - return r; - - r = acquire_control_dirs(scope, &persistent_control, &runtime_control); - if (r < 0 && r != -EOPNOTSUPP && r != -ENXIO) - return r; - - /* First priority is whatever has been passed to us via env vars */ - e = getenv("SYSTEMD_UNIT_PATH"); - if (e) { - const char *k; - - k = endswith(e, ":"); - if (k) { - e = strndupa(e, k - e); - append = true; - } - - /* FIXME: empty components in other places should be - * rejected. */ - - r = path_split_and_make_absolute(e, &paths); - if (r < 0) - return r; - } - - if (!paths || append) { - /* Let's figure something out. */ - - _cleanup_strv_free_ char **add = NULL; - - /* For the user units we include share/ in the search - * path in order to comply with the XDG basedir spec. - * For the system stuff we avoid such nonsense. OTOH - * we include /lib in the search path for the system - * stuff but avoid it for user stuff. */ - - switch (scope) { - - case UNIT_FILE_SYSTEM: - add = strv_new( - /* If you modify this you also want to modify - * systemdsystemunitpath= in systemd.pc.in! */ - STRV_IFNOTNULL(persistent_control), - STRV_IFNOTNULL(runtime_control), - STRV_IFNOTNULL(transient), - STRV_IFNOTNULL(generator_early), - persistent_config, - SYSTEM_CONFIG_UNIT_PATH, - "/etc/systemd/system", - runtime_config, - "/run/systemd/system", - STRV_IFNOTNULL(generator), - "/usr/local/lib/systemd/system", - SYSTEM_DATA_UNIT_PATH, - "/usr/lib/systemd/system", -#ifdef HAVE_SPLIT_USR - "/lib/systemd/system", -#endif - STRV_IFNOTNULL(generator_late), - NULL); - break; - - case UNIT_FILE_GLOBAL: - add = strv_new( - /* If you modify this you also want to modify - * systemduserunitpath= in systemd.pc.in, and - * the arrays in user_dirs() above! */ - STRV_IFNOTNULL(persistent_control), - STRV_IFNOTNULL(runtime_control), - STRV_IFNOTNULL(transient), - STRV_IFNOTNULL(generator_early), - persistent_config, - USER_CONFIG_UNIT_PATH, - "/etc/systemd/user", - runtime_config, - "/run/systemd/user", - STRV_IFNOTNULL(generator), - "/usr/local/lib/systemd/user", - "/usr/local/share/systemd/user", - USER_DATA_UNIT_PATH, - "/usr/lib/systemd/user", - "/usr/share/systemd/user", - STRV_IFNOTNULL(generator_late), - NULL); - break; - - case UNIT_FILE_USER: - add = user_dirs(persistent_config, runtime_config, - generator, generator_early, generator_late, - transient, - persistent_config, runtime_control); - break; - - default: - assert_not_reached("Hmm, unexpected scope?"); - } - - if (!add) - return -ENOMEM; - - if (paths) { - r = strv_extend_strv(&paths, add, true); - if (r < 0) - return r; - } else { - /* Small optimization: if paths is NULL (and it usually is), we can simply assign 'add' to it, - * and don't have to copy anything */ - paths = add; - add = NULL; - } - } - - r = patch_root_prefix(&persistent_config, root); - if (r < 0) - return r; - r = patch_root_prefix(&runtime_config, root); - if (r < 0) - return r; - - r = patch_root_prefix(&generator, root); - if (r < 0) - return r; - r = patch_root_prefix(&generator_early, root); - if (r < 0) - return r; - r = patch_root_prefix(&generator_late, root); - if (r < 0) - return r; - - r = patch_root_prefix(&transient, root); - if (r < 0) - return r; - - r = patch_root_prefix(&persistent_control, root); - if (r < 0) - return r; - - r = patch_root_prefix(&runtime_control, root); - if (r < 0) - return r; - - r = patch_root_prefix_strv(paths, root); - if (r < 0) - return -ENOMEM; - - p->search_path = strv_uniq(paths); - paths = NULL; - - p->persistent_config = persistent_config; - p->runtime_config = runtime_config; - persistent_config = runtime_config = NULL; - - p->generator = generator; - p->generator_early = generator_early; - p->generator_late = generator_late; - generator = generator_early = generator_late = NULL; - - p->transient = transient; - transient = NULL; - - p->persistent_control = persistent_control; - p->runtime_control = runtime_control; - persistent_control = runtime_control = NULL; - - p->root_dir = root; - root = NULL; - - return 0; -} - -void lookup_paths_free(LookupPaths *p) { - if (!p) - return; - - p->search_path = strv_free(p->search_path); - - p->persistent_config = mfree(p->persistent_config); - p->runtime_config = mfree(p->runtime_config); - - p->generator = mfree(p->generator); - p->generator_early = mfree(p->generator_early); - p->generator_late = mfree(p->generator_late); - - p->transient = mfree(p->transient); - - p->persistent_control = mfree(p->persistent_control); - p->runtime_control = mfree(p->runtime_control); - - p->root_dir = mfree(p->root_dir); -} - -int lookup_paths_reduce(LookupPaths *p) { - _cleanup_free_ struct stat *stats = NULL; - size_t n_stats = 0, allocated = 0; - unsigned c = 0; - int r; - - assert(p); - - /* Drop duplicates and non-existing directories from the search path. We figure out whether two directories are - * the same by comparing their device and inode numbers. Note one special tweak: when we have a root path set, - * we do not follow symlinks when retrieving them, because the kernel wouldn't take the root prefix into - * account when following symlinks. When we have no root path set this restriction does not apply however. */ - - if (!p->search_path) - return 0; - - while (p->search_path[c]) { - struct stat st; - unsigned k; - - if (p->root_dir) - r = lstat(p->search_path[c], &st); - else - r = stat(p->search_path[c], &st); - if (r < 0) { - if (errno == ENOENT) - goto remove_item; - - /* If something we don't grok happened, let's better leave it in. */ - log_debug_errno(errno, "Failed to stat %s: %m", p->search_path[c]); - c++; - continue; - } - - for (k = 0; k < n_stats; k++) { - if (stats[k].st_dev == st.st_dev && - stats[k].st_ino == st.st_ino) - break; - } - - if (k < n_stats) /* Is there already an entry with the same device/inode? */ - goto remove_item; - - if (!GREEDY_REALLOC(stats, allocated, n_stats+1)) - return -ENOMEM; - - stats[n_stats++] = st; - c++; - continue; - - remove_item: - free(p->search_path[c]); - memmove(p->search_path + c, - p->search_path + c + 1, - (strv_length(p->search_path + c + 1) + 1) * sizeof(char*)); - } - - if (strv_isempty(p->search_path)) { - log_debug("Ignoring unit files."); - p->search_path = strv_free(p->search_path); - } else { - _cleanup_free_ char *t; - - t = strv_join(p->search_path, "\n\t"); - if (!t) - return -ENOMEM; - - log_debug("Looking for unit files in (higher priority first):\n\t%s", t); - } - - return 0; -} - -int lookup_paths_mkdir_generator(LookupPaths *p) { - int r, q; - - assert(p); - - if (!p->generator || !p->generator_early || !p->generator_late) - return -EINVAL; - - r = mkdir_p_label(p->generator, 0755); - - q = mkdir_p_label(p->generator_early, 0755); - if (q < 0 && r >= 0) - r = q; - - q = mkdir_p_label(p->generator_late, 0755); - if (q < 0 && r >= 0) - r = q; - - return r; -} - -void lookup_paths_trim_generator(LookupPaths *p) { - assert(p); - - /* Trim empty dirs */ - - if (p->generator) - (void) rmdir(p->generator); - if (p->generator_early) - (void) rmdir(p->generator_early); - if (p->generator_late) - (void) rmdir(p->generator_late); -} - -void lookup_paths_flush_generator(LookupPaths *p) { - assert(p); - - /* Flush the generated unit files in full */ - - if (p->generator) - (void) rm_rf(p->generator, REMOVE_ROOT); - if (p->generator_early) - (void) rm_rf(p->generator_early, REMOVE_ROOT); - if (p->generator_late) - (void) rm_rf(p->generator_late, REMOVE_ROOT); -} - -char **generator_binary_paths(UnitFileScope scope) { - - switch (scope) { - - case UNIT_FILE_SYSTEM: - return strv_new("/run/systemd/system-generators", - "/etc/systemd/system-generators", - "/usr/local/lib/systemd/system-generators", - SYSTEM_GENERATOR_PATH, - NULL); - - case UNIT_FILE_GLOBAL: - case UNIT_FILE_USER: - return strv_new("/run/systemd/user-generators", - "/etc/systemd/user-generators", - "/usr/local/lib/systemd/user-generators", - USER_GENERATOR_PATH, - NULL); - - default: - assert_not_reached("Hmm, unexpected scope."); - } -} diff --git a/src/shared/path-lookup.h b/src/shared/path-lookup.h deleted file mode 100644 index f9bb2fe237..0000000000 --- a/src/shared/path-lookup.h +++ /dev/null @@ -1,76 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 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> - -typedef struct LookupPaths LookupPaths; - -#include "install.h" -#include "macro.h" - -typedef enum LookupPathsFlags { - LOOKUP_PATHS_EXCLUDE_GENERATED = 1, -} LookupPathsFlags; - -struct LookupPaths { - /* Where we look for unit files. This includes the individual special paths below, but also any vendor - * supplied, static unit file paths. */ - char **search_path; - - /* Where we shall create or remove our installation symlinks, aka "configuration", and where the user/admin - * shall place his own unit files. */ - char *persistent_config; - char *runtime_config; - - /* Where to place generated unit files (i.e. those a "generator" tool generated). Note the special semantics of - * this directory: the generators are flushed each time a "systemctl daemon-reload" is issued. The user should - * not alter these directories directly. */ - char *generator; - char *generator_early; - char *generator_late; - - /* Where to place transient unit files (i.e. those created dynamically via the bus API). Note the special - * semantics of this directory: all units created transiently have their unit files removed as the transient - * unit is unloaded. The user should not alter this directory directly. */ - char *transient; - - /* Where the snippets created by "systemctl set-property" are placed. Note that for transient units, the - * snippets are placed in the transient directory though (see above). The user should not alter this directory - * directly. */ - char *persistent_control; - char *runtime_control; - - /* The root directory prepended to all items above, or NULL */ - char *root_dir; -}; - -int lookup_paths_init(LookupPaths *p, UnitFileScope scope, LookupPathsFlags flags, const char *root_dir); - -int lookup_paths_reduce(LookupPaths *p); - -int lookup_paths_mkdir_generator(LookupPaths *p); -void lookup_paths_trim_generator(LookupPaths *p); -void lookup_paths_flush_generator(LookupPaths *p); - -void lookup_paths_free(LookupPaths *p); -#define _cleanup_lookup_paths_free_ _cleanup_(lookup_paths_free) - -char **generator_binary_paths(UnitFileScope scope); diff --git a/src/shared/ptyfwd.c b/src/shared/ptyfwd.c deleted file mode 100644 index 293c6673fc..0000000000 --- a/src/shared/ptyfwd.c +++ /dev/null @@ -1,521 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010-2013 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 <errno.h> -#include <limits.h> -#include <signal.h> -#include <stddef.h> -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <sys/epoll.h> -#include <sys/ioctl.h> -#include <sys/time.h> -#include <termios.h> -#include <unistd.h> - -#include "sd-event.h" - -#include "alloc-util.h" -#include "fd-util.h" -#include "log.h" -#include "macro.h" -#include "ptyfwd.h" -#include "time-util.h" - -struct PTYForward { - sd_event *event; - - int master; - - PTYForwardFlags flags; - - sd_event_source *stdin_event_source; - sd_event_source *stdout_event_source; - sd_event_source *master_event_source; - - sd_event_source *sigwinch_event_source; - - struct termios saved_stdin_attr; - struct termios saved_stdout_attr; - - bool saved_stdin:1; - bool saved_stdout:1; - - bool stdin_readable:1; - bool stdin_hangup:1; - bool stdout_writable:1; - bool stdout_hangup:1; - bool master_readable:1; - bool master_writable:1; - bool master_hangup:1; - - bool read_from_master:1; - - bool done:1; - - bool last_char_set:1; - char last_char; - - char in_buffer[LINE_MAX], out_buffer[LINE_MAX]; - size_t in_buffer_full, out_buffer_full; - - usec_t escape_timestamp; - unsigned escape_counter; - - PTYForwardHandler handler; - void *userdata; -}; - -#define ESCAPE_USEC (1*USEC_PER_SEC) - -static void pty_forward_disconnect(PTYForward *f) { - - if (f) { - f->stdin_event_source = sd_event_source_unref(f->stdin_event_source); - f->stdout_event_source = sd_event_source_unref(f->stdout_event_source); - - f->master_event_source = sd_event_source_unref(f->master_event_source); - f->sigwinch_event_source = sd_event_source_unref(f->sigwinch_event_source); - f->event = sd_event_unref(f->event); - - if (f->saved_stdout) - tcsetattr(STDOUT_FILENO, TCSANOW, &f->saved_stdout_attr); - if (f->saved_stdin) - tcsetattr(STDIN_FILENO, TCSANOW, &f->saved_stdin_attr); - - f->saved_stdout = f->saved_stdin = false; - } - - /* STDIN/STDOUT should not be nonblocking normally, so let's unconditionally reset it */ - fd_nonblock(STDIN_FILENO, false); - fd_nonblock(STDOUT_FILENO, false); -} - -static int pty_forward_done(PTYForward *f, int rcode) { - _cleanup_(sd_event_unrefp) sd_event *e = NULL; - assert(f); - - if (f->done) - return 0; - - e = sd_event_ref(f->event); - - f->done = true; - pty_forward_disconnect(f); - - if (f->handler) - return f->handler(f, rcode, f->userdata); - else - return sd_event_exit(e, rcode < 0 ? EXIT_FAILURE : rcode); -} - -static bool look_for_escape(PTYForward *f, const char *buffer, size_t n) { - const char *p; - - assert(f); - assert(buffer); - assert(n > 0); - - for (p = buffer; p < buffer + n; p++) { - - /* Check for ^] */ - if (*p == 0x1D) { - usec_t nw = now(CLOCK_MONOTONIC); - - if (f->escape_counter == 0 || nw > f->escape_timestamp + ESCAPE_USEC) { - f->escape_timestamp = nw; - f->escape_counter = 1; - } else { - (f->escape_counter)++; - - if (f->escape_counter >= 3) - return true; - } - } else { - f->escape_timestamp = 0; - f->escape_counter = 0; - } - } - - return false; -} - -static bool ignore_vhangup(PTYForward *f) { - assert(f); - - if (f->flags & PTY_FORWARD_IGNORE_VHANGUP) - return true; - - if ((f->flags & PTY_FORWARD_IGNORE_INITIAL_VHANGUP) && !f->read_from_master) - return true; - - return false; -} - -static int shovel(PTYForward *f) { - ssize_t k; - - assert(f); - - while ((f->stdin_readable && f->in_buffer_full <= 0) || - (f->master_writable && f->in_buffer_full > 0) || - (f->master_readable && f->out_buffer_full <= 0) || - (f->stdout_writable && f->out_buffer_full > 0)) { - - if (f->stdin_readable && f->in_buffer_full < LINE_MAX) { - - k = read(STDIN_FILENO, f->in_buffer + f->in_buffer_full, LINE_MAX - f->in_buffer_full); - if (k < 0) { - - if (errno == EAGAIN) - f->stdin_readable = false; - else if (errno == EIO || errno == EPIPE || errno == ECONNRESET) { - f->stdin_readable = false; - f->stdin_hangup = true; - - f->stdin_event_source = sd_event_source_unref(f->stdin_event_source); - } else { - log_error_errno(errno, "read(): %m"); - return pty_forward_done(f, -errno); - } - } else if (k == 0) { - /* EOF on stdin */ - f->stdin_readable = false; - f->stdin_hangup = true; - - f->stdin_event_source = sd_event_source_unref(f->stdin_event_source); - } else { - /* Check if ^] has been pressed three times within one second. If we get this we quite - * immediately. */ - if (look_for_escape(f, f->in_buffer + f->in_buffer_full, k)) - return pty_forward_done(f, -ECANCELED); - - f->in_buffer_full += (size_t) k; - } - } - - if (f->master_writable && f->in_buffer_full > 0) { - - k = write(f->master, f->in_buffer, f->in_buffer_full); - if (k < 0) { - - if (errno == EAGAIN || errno == EIO) - f->master_writable = false; - else if (errno == EPIPE || errno == ECONNRESET) { - f->master_writable = f->master_readable = false; - f->master_hangup = true; - - f->master_event_source = sd_event_source_unref(f->master_event_source); - } else { - log_error_errno(errno, "write(): %m"); - return pty_forward_done(f, -errno); - } - } else { - assert(f->in_buffer_full >= (size_t) k); - memmove(f->in_buffer, f->in_buffer + k, f->in_buffer_full - k); - f->in_buffer_full -= k; - } - } - - if (f->master_readable && f->out_buffer_full < LINE_MAX) { - - k = read(f->master, f->out_buffer + f->out_buffer_full, LINE_MAX - f->out_buffer_full); - if (k < 0) { - - /* Note that EIO on the master device - * might be caused by vhangup() or - * temporary closing of everything on - * the other side, we treat it like - * EAGAIN here and try again, unless - * ignore_vhangup is off. */ - - if (errno == EAGAIN || (errno == EIO && ignore_vhangup(f))) - f->master_readable = false; - else if (errno == EPIPE || errno == ECONNRESET || errno == EIO) { - f->master_readable = f->master_writable = false; - f->master_hangup = true; - - f->master_event_source = sd_event_source_unref(f->master_event_source); - } else { - log_error_errno(errno, "read(): %m"); - return pty_forward_done(f, -errno); - } - } else { - f->read_from_master = true; - f->out_buffer_full += (size_t) k; - } - } - - if (f->stdout_writable && f->out_buffer_full > 0) { - - k = write(STDOUT_FILENO, f->out_buffer, f->out_buffer_full); - if (k < 0) { - - if (errno == EAGAIN) - f->stdout_writable = false; - else if (errno == EIO || errno == EPIPE || errno == ECONNRESET) { - f->stdout_writable = false; - f->stdout_hangup = true; - f->stdout_event_source = sd_event_source_unref(f->stdout_event_source); - } else { - log_error_errno(errno, "write(): %m"); - return pty_forward_done(f, -errno); - } - - } else { - - if (k > 0) { - f->last_char = f->out_buffer[k-1]; - f->last_char_set = true; - } - - assert(f->out_buffer_full >= (size_t) k); - memmove(f->out_buffer, f->out_buffer + k, f->out_buffer_full - k); - f->out_buffer_full -= k; - } - } - } - - if (f->stdin_hangup || f->stdout_hangup || f->master_hangup) { - /* Exit the loop if any side hung up and if there's - * nothing more to write or nothing we could write. */ - - if ((f->out_buffer_full <= 0 || f->stdout_hangup) && - (f->in_buffer_full <= 0 || f->master_hangup)) - return pty_forward_done(f, 0); - } - - return 0; -} - -static int on_master_event(sd_event_source *e, int fd, uint32_t revents, void *userdata) { - PTYForward *f = userdata; - - assert(f); - assert(e); - assert(e == f->master_event_source); - assert(fd >= 0); - assert(fd == f->master); - - if (revents & (EPOLLIN|EPOLLHUP)) - f->master_readable = true; - - if (revents & (EPOLLOUT|EPOLLHUP)) - f->master_writable = true; - - return shovel(f); -} - -static int on_stdin_event(sd_event_source *e, int fd, uint32_t revents, void *userdata) { - PTYForward *f = userdata; - - assert(f); - assert(e); - assert(e == f->stdin_event_source); - assert(fd >= 0); - assert(fd == STDIN_FILENO); - - if (revents & (EPOLLIN|EPOLLHUP)) - f->stdin_readable = true; - - return shovel(f); -} - -static int on_stdout_event(sd_event_source *e, int fd, uint32_t revents, void *userdata) { - PTYForward *f = userdata; - - assert(f); - assert(e); - assert(e == f->stdout_event_source); - assert(fd >= 0); - assert(fd == STDOUT_FILENO); - - if (revents & (EPOLLOUT|EPOLLHUP)) - f->stdout_writable = true; - - return shovel(f); -} - -static int on_sigwinch_event(sd_event_source *e, const struct signalfd_siginfo *si, void *userdata) { - PTYForward *f = userdata; - struct winsize ws; - - assert(f); - assert(e); - assert(e == f->sigwinch_event_source); - - /* The window size changed, let's forward that. */ - if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) >= 0) - (void) ioctl(f->master, TIOCSWINSZ, &ws); - - return 0; -} - -int pty_forward_new( - sd_event *event, - int master, - PTYForwardFlags flags, - PTYForward **ret) { - - _cleanup_(pty_forward_freep) PTYForward *f = NULL; - struct winsize ws; - int r; - - f = new0(PTYForward, 1); - if (!f) - return -ENOMEM; - - f->flags = flags; - - if (event) - f->event = sd_event_ref(event); - else { - r = sd_event_default(&f->event); - if (r < 0) - return r; - } - - if (!(flags & PTY_FORWARD_READ_ONLY)) { - r = fd_nonblock(STDIN_FILENO, true); - if (r < 0) - return r; - - r = fd_nonblock(STDOUT_FILENO, true); - if (r < 0) - return r; - } - - r = fd_nonblock(master, true); - if (r < 0) - return r; - - f->master = master; - - if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) >= 0) - (void) ioctl(master, TIOCSWINSZ, &ws); - - if (!(flags & PTY_FORWARD_READ_ONLY)) { - if (tcgetattr(STDIN_FILENO, &f->saved_stdin_attr) >= 0) { - struct termios raw_stdin_attr; - - f->saved_stdin = true; - - raw_stdin_attr = f->saved_stdin_attr; - cfmakeraw(&raw_stdin_attr); - raw_stdin_attr.c_oflag = f->saved_stdin_attr.c_oflag; - tcsetattr(STDIN_FILENO, TCSANOW, &raw_stdin_attr); - } - - if (tcgetattr(STDOUT_FILENO, &f->saved_stdout_attr) >= 0) { - struct termios raw_stdout_attr; - - f->saved_stdout = true; - - raw_stdout_attr = f->saved_stdout_attr; - cfmakeraw(&raw_stdout_attr); - raw_stdout_attr.c_iflag = f->saved_stdout_attr.c_iflag; - raw_stdout_attr.c_lflag = f->saved_stdout_attr.c_lflag; - tcsetattr(STDOUT_FILENO, TCSANOW, &raw_stdout_attr); - } - - r = sd_event_add_io(f->event, &f->stdin_event_source, STDIN_FILENO, EPOLLIN|EPOLLET, on_stdin_event, f); - if (r < 0 && r != -EPERM) - return r; - } - - r = sd_event_add_io(f->event, &f->stdout_event_source, STDOUT_FILENO, EPOLLOUT|EPOLLET, on_stdout_event, f); - if (r == -EPERM) - /* stdout without epoll support. Likely redirected to regular file. */ - f->stdout_writable = true; - else if (r < 0) - return r; - - r = sd_event_add_io(f->event, &f->master_event_source, master, EPOLLIN|EPOLLOUT|EPOLLET, on_master_event, f); - if (r < 0) - return r; - - r = sd_event_add_signal(f->event, &f->sigwinch_event_source, SIGWINCH, on_sigwinch_event, f); - if (r < 0) - return r; - - *ret = f; - f = NULL; - - return 0; -} - -PTYForward *pty_forward_free(PTYForward *f) { - pty_forward_disconnect(f); - return mfree(f); -} - -int pty_forward_get_last_char(PTYForward *f, char *ch) { - assert(f); - assert(ch); - - if (!f->last_char_set) - return -ENXIO; - - *ch = f->last_char; - return 0; -} - -int pty_forward_set_ignore_vhangup(PTYForward *f, bool b) { - int r; - - assert(f); - - if (!!(f->flags & PTY_FORWARD_IGNORE_VHANGUP) == b) - return 0; - - SET_FLAG(f->flags, PTY_FORWARD_IGNORE_VHANGUP, b); - - if (!ignore_vhangup(f)) { - - /* We shall now react to vhangup()s? Let's check - * immediately if we might be in one */ - - f->master_readable = true; - r = shovel(f); - if (r < 0) - return r; - } - - return 0; -} - -bool pty_forward_get_ignore_vhangup(PTYForward *f) { - assert(f); - - return !!(f->flags & PTY_FORWARD_IGNORE_VHANGUP); -} - -bool pty_forward_is_done(PTYForward *f) { - assert(f); - - return f->done; -} - -void pty_forward_set_handler(PTYForward *f, PTYForwardHandler cb, void *userdata) { - assert(f); - - f->handler = cb; - f->userdata = userdata; -} diff --git a/src/shared/ptyfwd.h b/src/shared/ptyfwd.h deleted file mode 100644 index bd5d5fec0d..0000000000 --- a/src/shared/ptyfwd.h +++ /dev/null @@ -1,54 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010-2013 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 <stdbool.h> - -#include "sd-event.h" - -#include "macro.h" - -typedef struct PTYForward PTYForward; - -typedef enum PTYForwardFlags { - PTY_FORWARD_READ_ONLY = 1, - - /* Continue reading after hangup? */ - PTY_FORWARD_IGNORE_VHANGUP = 2, - - /* Continue reading after hangup but only if we never read anything else? */ - PTY_FORWARD_IGNORE_INITIAL_VHANGUP = 4, -} PTYForwardFlags; - -typedef int (*PTYForwardHandler)(PTYForward *f, int rcode, void*userdata); - -int pty_forward_new(sd_event *event, int master, PTYForwardFlags flags, PTYForward **f); -PTYForward *pty_forward_free(PTYForward *f); - -int pty_forward_get_last_char(PTYForward *f, char *ch); - -int pty_forward_set_ignore_vhangup(PTYForward *f, bool ignore_vhangup); -bool pty_forward_get_ignore_vhangup(PTYForward *f); - -bool pty_forward_is_done(PTYForward *f); - -void pty_forward_set_handler(PTYForward *f, PTYForwardHandler handler, void *userdata); - -DEFINE_TRIVIAL_CLEANUP_FUNC(PTYForward*, pty_forward_free); diff --git a/src/shared/resolve-util.c b/src/shared/resolve-util.c deleted file mode 100644 index e2da81bab7..0000000000 --- a/src/shared/resolve-util.c +++ /dev/null @@ -1,39 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2016 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 "conf-parser.h" -#include "resolve-util.h" -#include "string-table.h" - -DEFINE_CONFIG_PARSE_ENUM(config_parse_resolve_support, resolve_support, ResolveSupport, "Failed to parse resolve support setting"); -DEFINE_CONFIG_PARSE_ENUM(config_parse_dnssec_mode, dnssec_mode, DnssecMode, "Failed to parse DNSSEC mode setting"); - -static const char* const resolve_support_table[_RESOLVE_SUPPORT_MAX] = { - [RESOLVE_SUPPORT_NO] = "no", - [RESOLVE_SUPPORT_YES] = "yes", - [RESOLVE_SUPPORT_RESOLVE] = "resolve", -}; -DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(resolve_support, ResolveSupport, RESOLVE_SUPPORT_YES); - -static const char* const dnssec_mode_table[_DNSSEC_MODE_MAX] = { - [DNSSEC_NO] = "no", - [DNSSEC_ALLOW_DOWNGRADE] = "allow-downgrade", - [DNSSEC_YES] = "yes", -}; -DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(dnssec_mode, DnssecMode, DNSSEC_YES); diff --git a/src/shared/resolve-util.h b/src/shared/resolve-util.h deleted file mode 100644 index 8636a6c134..0000000000 --- a/src/shared/resolve-util.h +++ /dev/null @@ -1,60 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2016 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 "macro.h" - -typedef enum ResolveSupport ResolveSupport; -typedef enum DnssecMode DnssecMode; - -enum ResolveSupport { - RESOLVE_SUPPORT_NO, - RESOLVE_SUPPORT_YES, - RESOLVE_SUPPORT_RESOLVE, - _RESOLVE_SUPPORT_MAX, - _RESOLVE_SUPPORT_INVALID = -1 -}; - -enum DnssecMode { - /* No DNSSEC validation is done */ - DNSSEC_NO, - - /* Validate locally, if the server knows DO, but if not, - * don't. Don't trust the AD bit. If the server doesn't do - * DNSSEC properly, downgrade to non-DNSSEC operation. Of - * course, we then are vulnerable to a downgrade attack, but - * that's life and what is configured. */ - DNSSEC_ALLOW_DOWNGRADE, - - /* Insist on DNSSEC server support, and rather fail than downgrading. */ - DNSSEC_YES, - - _DNSSEC_MODE_MAX, - _DNSSEC_MODE_INVALID = -1 -}; - -int config_parse_resolve_support(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); -int config_parse_dnssec_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* resolve_support_to_string(ResolveSupport p) _const_; -ResolveSupport resolve_support_from_string(const char *s) _pure_; - -const char* dnssec_mode_to_string(DnssecMode p) _const_; -DnssecMode dnssec_mode_from_string(const char *s) _pure_; diff --git a/src/shared/seccomp-util.c b/src/shared/seccomp-util.c deleted file mode 100644 index c9b24f1065..0000000000 --- a/src/shared/seccomp-util.c +++ /dev/null @@ -1,578 +0,0 @@ -/*** - 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 <errno.h> -#include <seccomp.h> -#include <stddef.h> -#include <sys/prctl.h> -#include <linux/seccomp.h> - -#include "macro.h" -#include "seccomp-util.h" -#include "string-util.h" -#include "util.h" - -const char* seccomp_arch_to_string(uint32_t c) { - /* Maintain order used in <seccomp.h>. - * - * Names used here should be the same as those used for ConditionArchitecture=, - * except for "subarchitectures" like x32. */ - - switch(c) { - case SCMP_ARCH_NATIVE: - return "native"; - case SCMP_ARCH_X86: - return "x86"; - case SCMP_ARCH_X86_64: - return "x86-64"; - case SCMP_ARCH_X32: - return "x32"; - case SCMP_ARCH_ARM: - return "arm"; - case SCMP_ARCH_AARCH64: - return "arm64"; - case SCMP_ARCH_MIPS: - return "mips"; - case SCMP_ARCH_MIPS64: - return "mips64"; - case SCMP_ARCH_MIPS64N32: - return "mips64-n32"; - case SCMP_ARCH_MIPSEL: - return "mips-le"; - case SCMP_ARCH_MIPSEL64: - return "mips64-le"; - case SCMP_ARCH_MIPSEL64N32: - return "mips64-le-n32"; - case SCMP_ARCH_PPC: - return "ppc"; - case SCMP_ARCH_PPC64: - return "ppc64"; - case SCMP_ARCH_PPC64LE: - return "ppc64-le"; - case SCMP_ARCH_S390: - return "s390"; - case SCMP_ARCH_S390X: - return "s390x"; - default: - return NULL; - } -} - -int seccomp_arch_from_string(const char *n, uint32_t *ret) { - if (!n) - return -EINVAL; - - assert(ret); - - if (streq(n, "native")) - *ret = SCMP_ARCH_NATIVE; - else if (streq(n, "x86")) - *ret = SCMP_ARCH_X86; - else if (streq(n, "x86-64")) - *ret = SCMP_ARCH_X86_64; - else if (streq(n, "x32")) - *ret = SCMP_ARCH_X32; - else if (streq(n, "arm")) - *ret = SCMP_ARCH_ARM; - else if (streq(n, "arm64")) - *ret = SCMP_ARCH_AARCH64; - else if (streq(n, "mips")) - *ret = SCMP_ARCH_MIPS; - else if (streq(n, "mips64")) - *ret = SCMP_ARCH_MIPS64; - else if (streq(n, "mips64-n32")) - *ret = SCMP_ARCH_MIPS64N32; - else if (streq(n, "mips-le")) - *ret = SCMP_ARCH_MIPSEL; - else if (streq(n, "mips64-le")) - *ret = SCMP_ARCH_MIPSEL64; - else if (streq(n, "mips64-le-n32")) - *ret = SCMP_ARCH_MIPSEL64N32; - else if (streq(n, "ppc")) - *ret = SCMP_ARCH_PPC; - else if (streq(n, "ppc64")) - *ret = SCMP_ARCH_PPC64; - else if (streq(n, "ppc64-le")) - *ret = SCMP_ARCH_PPC64LE; - else if (streq(n, "s390")) - *ret = SCMP_ARCH_S390; - else if (streq(n, "s390x")) - *ret = SCMP_ARCH_S390X; - else - return -EINVAL; - - return 0; -} - -int seccomp_init_conservative(scmp_filter_ctx *ret, uint32_t default_action) { - scmp_filter_ctx seccomp; - int r; - - /* Much like seccomp_init(), but tries to be a bit more conservative in its defaults: all secondary archs are - * added by default, and NNP is turned off. */ - - seccomp = seccomp_init(default_action); - if (!seccomp) - return -ENOMEM; - - r = seccomp_add_secondary_archs(seccomp); - if (r < 0) - goto finish; - - r = seccomp_attr_set(seccomp, SCMP_FLTATR_CTL_NNP, 0); - if (r < 0) - goto finish; - - *ret = seccomp; - return 0; - -finish: - seccomp_release(seccomp); - return r; -} - -int seccomp_add_secondary_archs(scmp_filter_ctx ctx) { - - /* Add in all possible secondary archs we are aware of that - * this kernel might support. */ - - static const int seccomp_arches[] = { -#if defined(__i386__) || defined(__x86_64__) - SCMP_ARCH_X86, - SCMP_ARCH_X86_64, - SCMP_ARCH_X32, - -#elif defined(__arm__) || defined(__aarch64__) - SCMP_ARCH_ARM, - SCMP_ARCH_AARCH64, - -#elif defined(__arm__) || defined(__aarch64__) - SCMP_ARCH_ARM, - SCMP_ARCH_AARCH64, - -#elif defined(__mips__) || defined(__mips64__) - SCMP_ARCH_MIPS, - SCMP_ARCH_MIPS64, - SCMP_ARCH_MIPS64N32, - SCMP_ARCH_MIPSEL, - SCMP_ARCH_MIPSEL64, - SCMP_ARCH_MIPSEL64N32, - -#elif defined(__powerpc__) || defined(__powerpc64__) - SCMP_ARCH_PPC, - SCMP_ARCH_PPC64, - SCMP_ARCH_PPC64LE, - -#elif defined(__s390__) || defined(__s390x__) - SCMP_ARCH_S390, - SCMP_ARCH_S390X, -#endif - }; - - unsigned i; - int r; - - for (i = 0; i < ELEMENTSOF(seccomp_arches); i++) { - r = seccomp_arch_add(ctx, seccomp_arches[i]); - if (r < 0 && r != -EEXIST) - return r; - } - - return 0; -} - -static bool is_basic_seccomp_available(void) { - int r; - r = prctl(PR_GET_SECCOMP, 0, 0, 0, 0); - return r >= 0; -} - -static bool is_seccomp_filter_available(void) { - int r; - r = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, NULL, 0, 0); - return r < 0 && errno == EFAULT; -} - -bool is_seccomp_available(void) { - static int cached_enabled = -1; - if (cached_enabled < 0) - cached_enabled = is_basic_seccomp_available() && is_seccomp_filter_available(); - return cached_enabled; -} - -const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = { - [SYSCALL_FILTER_SET_BASIC_IO] = { - /* Basic IO */ - .name = "@basic-io", - .value = - "close\0" - "dup2\0" - "dup3\0" - "dup\0" - "lseek\0" - "pread64\0" - "preadv\0" - "pwrite64\0" - "pwritev\0" - "read\0" - "readv\0" - "write\0" - "writev\0" - }, - [SYSCALL_FILTER_SET_CLOCK] = { - /* Clock */ - .name = "@clock", - .value = - "adjtimex\0" - "clock_adjtime\0" - "clock_settime\0" - "settimeofday\0" - "stime\0" - }, - [SYSCALL_FILTER_SET_CPU_EMULATION] = { - /* CPU emulation calls */ - .name = "@cpu-emulation", - .value = - "modify_ldt\0" - "subpage_prot\0" - "switch_endian\0" - "vm86\0" - "vm86old\0" - }, - [SYSCALL_FILTER_SET_DEBUG] = { - /* Debugging/Performance Monitoring/Tracing */ - .name = "@debug", - .value = - "lookup_dcookie\0" - "perf_event_open\0" - "process_vm_readv\0" - "process_vm_writev\0" - "ptrace\0" - "rtas\0" -#ifdef __NR_s390_runtime_instr - "s390_runtime_instr\0" -#endif - "sys_debug_setcontext\0" - }, - [SYSCALL_FILTER_SET_DEFAULT] = { - /* Default list: the most basic of operations */ - .name = "@default", - .value = - "clock_getres\0" - "clock_gettime\0" - "clock_nanosleep\0" - "execve\0" - "exit\0" - "exit_group\0" - "getrlimit\0" /* make sure processes can query stack size and such */ - "gettimeofday\0" - "nanosleep\0" - "pause\0" - "rt_sigreturn\0" - "sigreturn\0" - "time\0" - }, - [SYSCALL_FILTER_SET_IO_EVENT] = { - /* Event loop use */ - .name = "@io-event", - .value = - "_newselect\0" - "epoll_create1\0" - "epoll_create\0" - "epoll_ctl\0" - "epoll_ctl_old\0" - "epoll_pwait\0" - "epoll_wait\0" - "epoll_wait_old\0" - "eventfd2\0" - "eventfd\0" - "poll\0" - "ppoll\0" - "pselect6\0" - "select\0" - }, - [SYSCALL_FILTER_SET_IPC] = { - /* Message queues, SYSV IPC or other IPC */ - .name = "@ipc", - .value = "ipc\0" - "memfd_create\0" - "mq_getsetattr\0" - "mq_notify\0" - "mq_open\0" - "mq_timedreceive\0" - "mq_timedsend\0" - "mq_unlink\0" - "msgctl\0" - "msgget\0" - "msgrcv\0" - "msgsnd\0" - "pipe2\0" - "pipe\0" - "process_vm_readv\0" - "process_vm_writev\0" - "semctl\0" - "semget\0" - "semop\0" - "semtimedop\0" - "shmat\0" - "shmctl\0" - "shmdt\0" - "shmget\0" - }, - [SYSCALL_FILTER_SET_KEYRING] = { - /* Keyring */ - .name = "@keyring", - .value = - "add_key\0" - "keyctl\0" - "request_key\0" - }, - [SYSCALL_FILTER_SET_MODULE] = { - /* Kernel module control */ - .name = "@module", - .value = - "delete_module\0" - "finit_module\0" - "init_module\0" - }, - [SYSCALL_FILTER_SET_MOUNT] = { - /* Mounting */ - .name = "@mount", - .value = - "chroot\0" - "mount\0" - "pivot_root\0" - "umount2\0" - "umount\0" - }, - [SYSCALL_FILTER_SET_NETWORK_IO] = { - /* Network or Unix socket IO, should not be needed if not network facing */ - .name = "@network-io", - .value = - "accept4\0" - "accept\0" - "bind\0" - "connect\0" - "getpeername\0" - "getsockname\0" - "getsockopt\0" - "listen\0" - "recv\0" - "recvfrom\0" - "recvmmsg\0" - "recvmsg\0" - "send\0" - "sendmmsg\0" - "sendmsg\0" - "sendto\0" - "setsockopt\0" - "shutdown\0" - "socket\0" - "socketcall\0" - "socketpair\0" - }, - [SYSCALL_FILTER_SET_OBSOLETE] = { - /* Unusual, obsolete or unimplemented, some unknown even to libseccomp */ - .name = "@obsolete", - .value = - "_sysctl\0" - "afs_syscall\0" - "break\0" - "create_module\0" - "ftime\0" - "get_kernel_syms\0" - "getpmsg\0" - "gtty\0" - "lock\0" - "mpx\0" - "prof\0" - "profil\0" - "putpmsg\0" - "query_module\0" - "security\0" - "sgetmask\0" - "ssetmask\0" - "stty\0" - "sysfs\0" - "tuxcall\0" - "ulimit\0" - "uselib\0" - "ustat\0" - "vserver\0" - }, - [SYSCALL_FILTER_SET_PRIVILEGED] = { - /* Nice grab-bag of all system calls which need superuser capabilities */ - .name = "@privileged", - .value = - "@clock\0" - "@module\0" - "@raw-io\0" - "acct\0" - "bdflush\0" - "bpf\0" - "capset\0" - "chown32\0" - "chown\0" - "chroot\0" - "fchown32\0" - "fchown\0" - "fchownat\0" - "kexec_file_load\0" - "kexec_load\0" - "lchown32\0" - "lchown\0" - "nfsservctl\0" - "pivot_root\0" - "quotactl\0" - "reboot\0" - "setdomainname\0" - "setfsuid32\0" - "setfsuid\0" - "setgroups32\0" - "setgroups\0" - "sethostname\0" - "setresuid32\0" - "setresuid\0" - "setreuid32\0" - "setreuid\0" - "setuid32\0" - "setuid\0" - "swapoff\0" - "swapon\0" - "_sysctl\0" - "vhangup\0" - }, - [SYSCALL_FILTER_SET_PROCESS] = { - /* Process control, execution, namespaces */ - .name = "@process", - .value = - "arch_prctl\0" - "clone\0" - "execveat\0" - "fork\0" - "kill\0" - "prctl\0" - "setns\0" - "tgkill\0" - "tkill\0" - "unshare\0" - "vfork\0" - }, - [SYSCALL_FILTER_SET_RAW_IO] = { - /* Raw I/O ports */ - .name = "@raw-io", - .value = - "ioperm\0" - "iopl\0" - "pciconfig_iobase\0" - "pciconfig_read\0" - "pciconfig_write\0" -#ifdef __NR_s390_pci_mmio_read - "s390_pci_mmio_read\0" -#endif -#ifdef __NR_s390_pci_mmio_write - "s390_pci_mmio_write\0" -#endif - }, - [SYSCALL_FILTER_SET_RESOURCES] = { - /* Alter resource settings */ - .name = "@resources", - .value = - "sched_setparam\0" - "sched_setscheduler\0" - "sched_setaffinity\0" - "setpriority\0" - "setrlimit\0" - "set_mempolicy\0" - "migrate_pages\0" - "move_pages\0" - "mbind\0" - "sched_setattr\0" - "prlimit64\0" - }, -}; - -const SyscallFilterSet *syscall_filter_set_find(const char *name) { - unsigned i; - - if (isempty(name) || name[0] != '@') - return NULL; - - for (i = 0; i < _SYSCALL_FILTER_SET_MAX; i++) - if (streq(syscall_filter_sets[i].name, name)) - return syscall_filter_sets + i; - - return NULL; -} - -int seccomp_add_syscall_filter_set(scmp_filter_ctx seccomp, const SyscallFilterSet *set, uint32_t action) { - const char *sys; - int r; - - assert(seccomp); - assert(set); - - NULSTR_FOREACH(sys, set->value) { - int id; - - if (sys[0] == '@') { - const SyscallFilterSet *other; - - other = syscall_filter_set_find(sys); - if (!other) - return -EINVAL; - - r = seccomp_add_syscall_filter_set(seccomp, other, action); - } else { - id = seccomp_syscall_resolve_name(sys); - if (id == __NR_SCMP_ERROR) - return -EINVAL; - - r = seccomp_rule_add(seccomp, action, id, 0); - } - if (r < 0) - return r; - } - - return 0; -} - -int seccomp_load_filter_set(uint32_t default_action, const SyscallFilterSet *set, uint32_t action) { - scmp_filter_ctx seccomp; - int r; - - assert(set); - - /* The one-stop solution: allocate a seccomp object, add a filter to it, and apply it */ - - r = seccomp_init_conservative(&seccomp, default_action); - if (r < 0) - return r; - - r = seccomp_add_syscall_filter_set(seccomp, set, action); - if (r < 0) - goto finish; - - r = seccomp_load(seccomp); - -finish: - seccomp_release(seccomp); - return r; - -} diff --git a/src/shared/seccomp-util.h b/src/shared/seccomp-util.h deleted file mode 100644 index 8e209efef2..0000000000 --- a/src/shared/seccomp-util.h +++ /dev/null @@ -1,66 +0,0 @@ -#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 <seccomp.h> -#include <stdbool.h> -#include <stdint.h> - -const char* seccomp_arch_to_string(uint32_t c); -int seccomp_arch_from_string(const char *n, uint32_t *ret); - -int seccomp_init_conservative(scmp_filter_ctx *ret, uint32_t default_action); - -int seccomp_add_secondary_archs(scmp_filter_ctx c); - -bool is_seccomp_available(void); - -typedef struct SyscallFilterSet { - const char *name; - const char *value; -} SyscallFilterSet; - -enum { - SYSCALL_FILTER_SET_BASIC_IO, - SYSCALL_FILTER_SET_CLOCK, - SYSCALL_FILTER_SET_CPU_EMULATION, - SYSCALL_FILTER_SET_DEBUG, - SYSCALL_FILTER_SET_DEFAULT, - SYSCALL_FILTER_SET_IO_EVENT, - SYSCALL_FILTER_SET_IPC, - SYSCALL_FILTER_SET_KEYRING, - SYSCALL_FILTER_SET_MODULE, - SYSCALL_FILTER_SET_MOUNT, - SYSCALL_FILTER_SET_NETWORK_IO, - SYSCALL_FILTER_SET_OBSOLETE, - SYSCALL_FILTER_SET_PRIVILEGED, - SYSCALL_FILTER_SET_PROCESS, - SYSCALL_FILTER_SET_RAW_IO, - SYSCALL_FILTER_SET_RESOURCES, - _SYSCALL_FILTER_SET_MAX -}; - -extern const SyscallFilterSet syscall_filter_sets[]; - -const SyscallFilterSet *syscall_filter_set_find(const char *name); - -int seccomp_add_syscall_filter_set(scmp_filter_ctx seccomp, const SyscallFilterSet *set, uint32_t action); - -int seccomp_load_filter_set(uint32_t default_action, const SyscallFilterSet *set, uint32_t action); diff --git a/src/shared/sleep-config.c b/src/shared/sleep-config.c deleted file mode 100644 index ed31a80c8d..0000000000 --- a/src/shared/sleep-config.c +++ /dev/null @@ -1,278 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2013 Zbigniew Jędrzejewski-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 <errno.h> -#include <stdbool.h> -#include <stddef.h> -#include <stdio.h> -#include <string.h> -#include <syslog.h> -#include <unistd.h> - -#include "alloc-util.h" -#include "conf-parser.h" -#include "def.h" -#include "env-util.h" -#include "fd-util.h" -#include "fileio.h" -#include "log.h" -#include "macro.h" -#include "parse-util.h" -#include "sleep-config.h" -#include "string-util.h" -#include "strv.h" - -#define USE(x, y) do { (x) = (y); (y) = NULL; } while (0) - -int parse_sleep_config(const char *verb, char ***_modes, char ***_states) { - - _cleanup_strv_free_ char - **suspend_mode = NULL, **suspend_state = NULL, - **hibernate_mode = NULL, **hibernate_state = NULL, - **hybrid_mode = NULL, **hybrid_state = NULL; - char **modes, **states; - - const ConfigTableItem items[] = { - { "Sleep", "SuspendMode", config_parse_strv, 0, &suspend_mode }, - { "Sleep", "SuspendState", config_parse_strv, 0, &suspend_state }, - { "Sleep", "HibernateMode", config_parse_strv, 0, &hibernate_mode }, - { "Sleep", "HibernateState", config_parse_strv, 0, &hibernate_state }, - { "Sleep", "HybridSleepMode", config_parse_strv, 0, &hybrid_mode }, - { "Sleep", "HybridSleepState", config_parse_strv, 0, &hybrid_state }, - {} - }; - - config_parse_many_nulstr(PKGSYSCONFDIR "/sleep.conf", - CONF_PATHS_NULSTR("systemd/sleep.conf.d"), - "Sleep\0", config_item_table_lookup, items, - false, NULL); - - if (streq(verb, "suspend")) { - /* empty by default */ - USE(modes, suspend_mode); - - if (suspend_state) - USE(states, suspend_state); - else - states = strv_new("mem", "standby", "freeze", NULL); - - } else if (streq(verb, "hibernate")) { - if (hibernate_mode) - USE(modes, hibernate_mode); - else - modes = strv_new("platform", "shutdown", NULL); - - if (hibernate_state) - USE(states, hibernate_state); - else - states = strv_new("disk", NULL); - - } else if (streq(verb, "hybrid-sleep")) { - if (hybrid_mode) - USE(modes, hybrid_mode); - else - modes = strv_new("suspend", "platform", "shutdown", NULL); - - if (hybrid_state) - USE(states, hybrid_state); - else - states = strv_new("disk", NULL); - - } else - assert_not_reached("what verb"); - - if ((!modes && !streq(verb, "suspend")) || !states) { - strv_free(modes); - strv_free(states); - return log_oom(); - } - - *_modes = modes; - *_states = states; - return 0; -} - -int can_sleep_state(char **types) { - char **type; - int r; - _cleanup_free_ char *p = NULL; - - if (strv_isempty(types)) - return true; - - /* If /sys is read-only we cannot sleep */ - if (access("/sys/power/state", W_OK) < 0) - return false; - - r = read_one_line_file("/sys/power/state", &p); - if (r < 0) - return false; - - STRV_FOREACH(type, types) { - const char *word, *state; - size_t l, k; - - k = strlen(*type); - FOREACH_WORD_SEPARATOR(word, l, p, WHITESPACE, state) - if (l == k && memcmp(word, *type, l) == 0) - return true; - } - - return false; -} - -int can_sleep_disk(char **types) { - char **type; - int r; - _cleanup_free_ char *p = NULL; - - if (strv_isempty(types)) - return true; - - /* If /sys is read-only we cannot sleep */ - if (access("/sys/power/disk", W_OK) < 0) - return false; - - r = read_one_line_file("/sys/power/disk", &p); - if (r < 0) - return false; - - STRV_FOREACH(type, types) { - const char *word, *state; - size_t l, k; - - k = strlen(*type); - FOREACH_WORD_SEPARATOR(word, l, p, WHITESPACE, state) { - if (l == k && memcmp(word, *type, l) == 0) - return true; - - if (l == k + 2 && - word[0] == '[' && - memcmp(word + 1, *type, l - 2) == 0 && - word[l-1] == ']') - return true; - } - } - - return false; -} - -#define HIBERNATION_SWAP_THRESHOLD 0.98 - -static int hibernation_partition_size(size_t *size, size_t *used) { - _cleanup_fclose_ FILE *f; - unsigned i; - - assert(size); - assert(used); - - f = fopen("/proc/swaps", "re"); - if (!f) { - log_full(errno == ENOENT ? LOG_DEBUG : LOG_WARNING, - "Failed to retrieve open /proc/swaps: %m"); - assert(errno > 0); - return -errno; - } - - (void) fscanf(f, "%*s %*s %*s %*s %*s\n"); - - for (i = 1;; i++) { - _cleanup_free_ char *dev = NULL, *type = NULL; - size_t size_field, used_field; - int k; - - k = fscanf(f, - "%ms " /* device/file */ - "%ms " /* type of swap */ - "%zu " /* swap size */ - "%zu " /* used */ - "%*i\n", /* priority */ - &dev, &type, &size_field, &used_field); - if (k != 4) { - if (k == EOF) - break; - - log_warning("Failed to parse /proc/swaps:%u", i); - continue; - } - - if (streq(type, "partition") && endswith(dev, "\\040(deleted)")) { - log_warning("Ignoring deleted swapfile '%s'.", dev); - continue; - } - - *size = size_field; - *used = used_field; - return 0; - } - - log_debug("No swap partitions were found."); - return -ENOSYS; -} - -static bool enough_memory_for_hibernation(void) { - _cleanup_free_ char *active = NULL; - unsigned long long act = 0; - size_t size = 0, used = 0; - int r; - - if (getenv_bool("SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK") > 0) - return true; - - r = hibernation_partition_size(&size, &used); - if (r < 0) - return false; - - r = get_proc_field("/proc/meminfo", "Active(anon)", WHITESPACE, &active); - if (r < 0) { - log_error_errno(r, "Failed to retrieve Active(anon) from /proc/meminfo: %m"); - return false; - } - - r = safe_atollu(active, &act); - if (r < 0) { - log_error_errno(r, "Failed to parse Active(anon) from /proc/meminfo: %s: %m", - active); - return false; - } - - r = act <= (size - used) * HIBERNATION_SWAP_THRESHOLD; - log_debug("Hibernation is %spossible, Active(anon)=%llu kB, size=%zu kB, used=%zu kB, threshold=%.2g%%", - r ? "" : "im", act, size, used, 100*HIBERNATION_SWAP_THRESHOLD); - - return r; -} - -int can_sleep(const char *verb) { - _cleanup_strv_free_ char **modes = NULL, **states = NULL; - int r; - - assert(streq(verb, "suspend") || - streq(verb, "hibernate") || - streq(verb, "hybrid-sleep")); - - r = parse_sleep_config(verb, &modes, &states); - if (r < 0) - return false; - - if (!can_sleep_state(states) || !can_sleep_disk(modes)) - return false; - - return streq(verb, "suspend") || enough_memory_for_hibernation(); -} diff --git a/src/shared/sleep-config.h b/src/shared/sleep-config.h deleted file mode 100644 index ad10039ff4..0000000000 --- a/src/shared/sleep-config.h +++ /dev/null @@ -1,26 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 Zbigniew Jędrzejewski-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/>. -***/ - -int parse_sleep_config(const char *verb, char ***modes, char ***states); - -int can_sleep(const char *verb); -int can_sleep_disk(char **types); -int can_sleep_state(char **types); diff --git a/src/shared/spawn-ask-password-agent.c b/src/shared/spawn-ask-password-agent.c deleted file mode 100644 index a46b7525f0..0000000000 --- a/src/shared/spawn-ask-password-agent.c +++ /dev/null @@ -1,62 +0,0 @@ -/*** - 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 <signal.h> -#include <stdlib.h> -#include <unistd.h> - -#include "log.h" -#include "process-util.h" -#include "spawn-ask-password-agent.h" -#include "util.h" - -static pid_t agent_pid = 0; - -int ask_password_agent_open(void) { - int r; - - if (agent_pid > 0) - return 0; - - /* We check STDIN here, not STDOUT, since this is about input, - * not output */ - if (!isatty(STDIN_FILENO)) - return 0; - - r = fork_agent(&agent_pid, - NULL, 0, - SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, - SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL); - if (r < 0) - return log_error_errno(r, "Failed to fork TTY ask password agent: %m"); - - return 1; -} - -void ask_password_agent_close(void) { - - if (agent_pid <= 0) - return; - - /* Inform agent that we are done */ - (void) kill(agent_pid, SIGTERM); - (void) kill(agent_pid, SIGCONT); - (void) wait_for_terminate(agent_pid, NULL); - agent_pid = 0; -} diff --git a/src/shared/spawn-ask-password-agent.h b/src/shared/spawn-ask-password-agent.h deleted file mode 100644 index fb0749b13f..0000000000 --- a/src/shared/spawn-ask-password-agent.h +++ /dev/null @@ -1,23 +0,0 @@ -#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 ask_password_agent_open(void); -void ask_password_agent_close(void); diff --git a/src/shared/spawn-polkit-agent.c b/src/shared/spawn-polkit-agent.c deleted file mode 100644 index 7dae4d14fe..0000000000 --- a/src/shared/spawn-polkit-agent.c +++ /dev/null @@ -1,102 +0,0 @@ -/*** - 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 <poll.h> -#include <signal.h> -#include <stdlib.h> -#include <unistd.h> - -#include "fd-util.h" -#include "io-util.h" -#include "log.h" -#include "macro.h" -#include "process-util.h" -#include "spawn-polkit-agent.h" -#include "stdio-util.h" -#include "time-util.h" -#include "util.h" - -#ifdef ENABLE_POLKIT -static pid_t agent_pid = 0; - -int polkit_agent_open(void) { - int r; - int pipe_fd[2]; - char notify_fd[DECIMAL_STR_MAX(int) + 1]; - - if (agent_pid > 0) - return 0; - - /* Clients that run as root don't need to activate/query polkit */ - if (geteuid() == 0) - return 0; - - /* We check STDIN here, not STDOUT, since this is about input, - * not output */ - if (!isatty(STDIN_FILENO)) - return 0; - - if (pipe2(pipe_fd, 0) < 0) - return -errno; - - xsprintf(notify_fd, "%i", pipe_fd[1]); - - r = fork_agent(&agent_pid, - &pipe_fd[1], 1, - POLKIT_AGENT_BINARY_PATH, - POLKIT_AGENT_BINARY_PATH, "--notify-fd", notify_fd, "--fallback", NULL); - - /* Close the writing side, because that's the one for the agent */ - safe_close(pipe_fd[1]); - - if (r < 0) - log_error_errno(r, "Failed to fork TTY ask password agent: %m"); - else - /* Wait until the agent closes the fd */ - fd_wait_for_event(pipe_fd[0], POLLHUP, USEC_INFINITY); - - safe_close(pipe_fd[0]); - - return r; -} - -void polkit_agent_close(void) { - - if (agent_pid <= 0) - return; - - /* Inform agent that we are done */ - (void) kill(agent_pid, SIGTERM); - (void) kill(agent_pid, SIGCONT); - - (void) wait_for_terminate(agent_pid, NULL); - agent_pid = 0; -} - -#else - -int polkit_agent_open(void) { - return 0; -} - -void polkit_agent_close(void) { -} - -#endif diff --git a/src/shared/spawn-polkit-agent.h b/src/shared/spawn-polkit-agent.h deleted file mode 100644 index 42b2989ded..0000000000 --- a/src/shared/spawn-polkit-agent.h +++ /dev/null @@ -1,23 +0,0 @@ -#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/>. -***/ - -int polkit_agent_open(void); -void polkit_agent_close(void); diff --git a/src/shared/specifier.c b/src/shared/specifier.c deleted file mode 100644 index 1c17eb5251..0000000000 --- a/src/shared/specifier.c +++ /dev/null @@ -1,188 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <stdbool.h> -#include <stddef.h> -#include <stdlib.h> -#include <string.h> -#include <sys/utsname.h> - -#include "sd-id128.h" - -#include "alloc-util.h" -#include "hostname-util.h" -#include "macro.h" -#include "specifier.h" -#include "string-util.h" - -/* - * Generic infrastructure for replacing %x style specifiers in - * strings. Will call a callback for each replacement. - * - */ - -int specifier_printf(const char *text, const Specifier table[], void *userdata, char **_ret) { - char *ret, *t; - const char *f; - bool percent = false; - size_t l; - int r; - - assert(text); - assert(table); - - l = strlen(text); - ret = new(char, l+1); - if (!ret) - return -ENOMEM; - - t = ret; - - for (f = text; *f; f++, l--) { - - if (percent) { - if (*f == '%') - *(t++) = '%'; - else { - const Specifier *i; - - for (i = table; i->specifier; i++) - if (i->specifier == *f) - break; - - if (i->lookup) { - _cleanup_free_ char *w = NULL; - char *n; - size_t k, j; - - r = i->lookup(i->specifier, i->data, userdata, &w); - if (r < 0) { - free(ret); - return r; - } - - j = t - ret; - k = strlen(w); - - n = new(char, j + k + l + 1); - if (!n) { - free(ret); - return -ENOMEM; - } - - memcpy(n, ret, j); - memcpy(n + j, w, k); - - free(ret); - - ret = n; - t = n + j + k; - } else { - *(t++) = '%'; - *(t++) = *f; - } - } - - percent = false; - } else if (*f == '%') - percent = true; - else - *(t++) = *f; - } - - *t = 0; - *_ret = ret; - return 0; -} - -/* Generic handler for simple string replacements */ - -int specifier_string(char specifier, void *data, void *userdata, char **ret) { - char *n; - - n = strdup(strempty(data)); - if (!n) - return -ENOMEM; - - *ret = n; - return 0; -} - -int specifier_machine_id(char specifier, void *data, void *userdata, char **ret) { - sd_id128_t id; - char *n; - int r; - - r = sd_id128_get_machine(&id); - if (r < 0) - return r; - - n = new(char, 33); - if (!n) - return -ENOMEM; - - *ret = sd_id128_to_string(id, n); - return 0; -} - -int specifier_boot_id(char specifier, void *data, void *userdata, char **ret) { - sd_id128_t id; - char *n; - int r; - - r = sd_id128_get_boot(&id); - if (r < 0) - return r; - - n = new(char, 33); - if (!n) - return -ENOMEM; - - *ret = sd_id128_to_string(id, n); - return 0; -} - -int specifier_host_name(char specifier, void *data, void *userdata, char **ret) { - char *n; - - n = gethostname_malloc(); - if (!n) - return -ENOMEM; - - *ret = n; - return 0; -} - -int specifier_kernel_release(char specifier, void *data, void *userdata, char **ret) { - struct utsname uts; - char *n; - int r; - - r = uname(&uts); - if (r < 0) - return -errno; - - n = strdup(uts.release); - if (!n) - return -ENOMEM; - - *ret = n; - return 0; -} diff --git a/src/shared/specifier.h b/src/shared/specifier.h deleted file mode 100644 index 6b1623ee61..0000000000 --- a/src/shared/specifier.h +++ /dev/null @@ -1,37 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 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/>. -***/ - -typedef int (*SpecifierCallback)(char specifier, void *data, void *userdata, char **ret); - -typedef struct Specifier { - const char specifier; - const SpecifierCallback lookup; - void *data; -} Specifier; - -int specifier_printf(const char *text, const Specifier table[], void *userdata, char **ret); - -int specifier_string(char specifier, void *data, void *userdata, char **ret); - -int specifier_machine_id(char specifier, void *data, void *userdata, char **ret); -int specifier_boot_id(char specifier, void *data, void *userdata, char **ret); -int specifier_host_name(char specifier, void *data, void *userdata, char **ret); -int specifier_kernel_release(char specifier, void *data, void *userdata, char **ret); diff --git a/src/shared/switch-root.c b/src/shared/switch-root.c deleted file mode 100644 index 4eff4f692e..0000000000 --- a/src/shared/switch-root.c +++ /dev/null @@ -1,167 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2012 Harald Hoyer, 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 <limits.h> -#include <stdbool.h> -#include <stdio.h> -#include <sys/mount.h> -#include <sys/stat.h> -#include <unistd.h> - -#include "base-filesystem.h" -#include "fd-util.h" -#include "log.h" -#include "missing.h" -#include "mkdir.h" -#include "path-util.h" -#include "rm-rf.h" -#include "stdio-util.h" -#include "string-util.h" -#include "switch-root.h" -#include "user-util.h" -#include "util.h" - -int switch_root(const char *new_root, const char *oldroot, bool detach_oldroot, unsigned long mountflags) { - - /* Don't try to unmount/move the old "/", there's no way to do it. */ - static const char move_mounts[] = - "/dev\0" - "/proc\0" - "/sys\0" - "/run\0"; - - _cleanup_close_ int old_root_fd = -1; - struct stat new_root_stat; - bool old_root_remove; - const char *i, *temporary_old_root; - - if (path_equal(new_root, "/")) - return 0; - - temporary_old_root = strjoina(new_root, oldroot); - mkdir_p_label(temporary_old_root, 0755); - - old_root_remove = in_initrd(); - - if (stat(new_root, &new_root_stat) < 0) - return log_error_errno(errno, "Failed to stat directory %s: %m", new_root); - - /* Work-around for kernel design: the kernel refuses switching - * root if any file systems are mounted MS_SHARED. Hence - * remount them MS_PRIVATE here as a work-around. - * - * https://bugzilla.redhat.com/show_bug.cgi?id=847418 */ - if (mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) < 0) - log_warning_errno(errno, "Failed to make \"/\" private mount: %m"); - - NULSTR_FOREACH(i, move_mounts) { - char new_mount[PATH_MAX]; - struct stat sb; - size_t n; - - n = snprintf(new_mount, sizeof new_mount, "%s%s", new_root, i); - if (n >= sizeof new_mount) { - bool move = mountflags & MS_MOVE; - - log_warning("New path is too long, %s: %s%s", - move ? "forcing unmount instead" : "ignoring", - new_root, i); - - if (move) - if (umount2(i, MNT_FORCE) < 0) - log_warning_errno(errno, "Failed to unmount %s: %m", i); - continue; - } - - mkdir_p_label(new_mount, 0755); - - if (stat(new_mount, &sb) < 0 || - sb.st_dev != new_root_stat.st_dev) { - - /* Mount point seems to be mounted already or - * stat failed. Unmount the old mount point. */ - if (umount2(i, MNT_DETACH) < 0) - log_warning_errno(errno, "Failed to unmount %s: %m", i); - continue; - } - - if (mount(i, new_mount, NULL, mountflags, NULL) < 0) { - if (mountflags & MS_MOVE) { - log_error_errno(errno, "Failed to move mount %s to %s, forcing unmount: %m", i, new_mount); - - if (umount2(i, MNT_FORCE) < 0) - log_warning_errno(errno, "Failed to unmount %s: %m", i); - - } else if (mountflags & MS_BIND) - log_error_errno(errno, "Failed to bind mount %s to %s: %m", i, new_mount); - } - } - - /* Do not fail, if base_filesystem_create() fails. Not all - * switch roots are like base_filesystem_create() wants them - * to look like. They might even boot, if they are RO and - * don't have the FS layout. Just ignore the error and - * switch_root() nevertheless. */ - (void) base_filesystem_create(new_root, UID_INVALID, GID_INVALID); - - if (chdir(new_root) < 0) - return log_error_errno(errno, "Failed to change directory to %s: %m", new_root); - - if (old_root_remove) { - old_root_fd = open("/", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOCTTY|O_DIRECTORY); - if (old_root_fd < 0) - log_warning_errno(errno, "Failed to open root directory: %m"); - } - - /* We first try a pivot_root() so that we can umount the old - * root dir. In many cases (i.e. where rootfs is /), that's - * not possible however, and hence we simply overmount root */ - if (pivot_root(new_root, temporary_old_root) >= 0) { - - /* Immediately get rid of the old root, if detach_oldroot is set. - * Since we are running off it we need to do this lazily. */ - if (detach_oldroot && umount2(oldroot, MNT_DETACH) < 0) - log_error_errno(errno, "Failed to lazily umount old root dir %s, %s: %m", - oldroot, - errno == ENOENT ? "ignoring" : "leaving it around"); - - } else if (mount(new_root, "/", NULL, MS_MOVE, NULL) < 0) - return log_error_errno(errno, "Failed to mount moving %s to /: %m", new_root); - - if (chroot(".") < 0) - return log_error_errno(errno, "Failed to change root: %m"); - - if (chdir("/") < 0) - return log_error_errno(errno, "Failed to change directory: %m"); - - if (old_root_fd >= 0) { - struct stat rb; - - if (fstat(old_root_fd, &rb) < 0) - log_warning_errno(errno, "Failed to stat old root directory, leaving: %m"); - else { - (void) rm_rf_children(old_root_fd, 0, &rb); - old_root_fd = -1; - } - } - - return 0; -} diff --git a/src/shared/switch-root.h b/src/shared/switch-root.h deleted file mode 100644 index a7a080b3e8..0000000000 --- a/src/shared/switch-root.h +++ /dev/null @@ -1,23 +0,0 @@ -#pragma once - -#include <stdbool.h> -/*** - This file is part of systemd. - - Copyright 2012 Harald Hoyer, 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 switch_root(const char *new_root, const char *oldroot, bool detach_oldroot, unsigned long mountflags); diff --git a/src/shared/sysctl-util.c b/src/shared/sysctl-util.c deleted file mode 100644 index e1ccb3294c..0000000000 --- a/src/shared/sysctl-util.c +++ /dev/null @@ -1,73 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <string.h> - -#include "fileio.h" -#include "log.h" -#include "macro.h" -#include "string-util.h" -#include "sysctl-util.h" - -char *sysctl_normalize(char *s) { - char *n; - - n = strpbrk(s, "/."); - /* If the first separator is a slash, the path is - * assumed to be normalized and slashes remain slashes - * and dots remains dots. */ - if (!n || *n == '/') - return s; - - /* Otherwise, dots become slashes and slashes become - * dots. Fun. */ - while (n) { - if (*n == '.') - *n = '/'; - else - *n = '.'; - - n = strpbrk(n + 1, "/."); - } - - return s; -} - -int sysctl_write(const char *property, const char *value) { - char *p; - - assert(property); - assert(value); - - log_debug("Setting '%s' to '%s'", property, value); - - p = strjoina("/proc/sys/", property); - return write_string_file(p, value, 0); -} - -int sysctl_read(const char *property, char **content) { - char *p; - - assert(property); - assert(content); - - p = strjoina("/proc/sys/", property); - return read_full_file(p, content, NULL); -} diff --git a/src/shared/sysctl-util.h b/src/shared/sysctl-util.h deleted file mode 100644 index 2decb39f58..0000000000 --- a/src/shared/sysctl-util.h +++ /dev/null @@ -1,25 +0,0 @@ -#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/>. -***/ - -char *sysctl_normalize(char *s); -int sysctl_read(const char *property, char **value); -int sysctl_write(const char *property, const char *value); - diff --git a/src/shared/test-tables.h b/src/shared/test-tables.h deleted file mode 100644 index 228e510104..0000000000 --- a/src/shared/test-tables.h +++ /dev/null @@ -1,60 +0,0 @@ -/*** - This file is part of systemd - - Copyright 2013 Zbigniew Jędrzejewski-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 <stdio.h> -#include <stdlib.h> - -typedef const char* (*lookup_t)(int); -typedef int (*reverse_t)(const char*); - -static inline void _test_table(const char *name, - lookup_t lookup, - reverse_t reverse, - int size, - bool sparse) { - int i, boring = 0; - - for (i = -1; i < size + 1; i++) { - const char* val = lookup(i); - int rev; - - if (val) { - rev = reverse(val); - boring = 0; - } else { - rev = reverse("--no-such--value----"); - boring += i >= 0; - } - - if (boring < 1 || i == size) - printf("%s: %d → %s → %d\n", name, i, val, rev); - else if (boring == 1) - printf("%*s ...\n", (int) strlen(name), ""); - - assert_se(!(i >= 0 && i < size ? - sparse ? rev != i && rev != -1 : val == NULL || rev != i : - val != NULL || rev != -1)); - } -} - -#define test_table(lower, upper) \ - _test_table(STRINGIFY(lower), lower##_to_string, lower##_from_string, _##upper##_MAX, false) - -#define test_table_sparse(lower, upper) \ - _test_table(STRINGIFY(lower), lower##_to_string, lower##_from_string, _##upper##_MAX, true) diff --git a/src/shared/tests.c b/src/shared/tests.c deleted file mode 100644 index 409116290d..0000000000 --- a/src/shared/tests.c +++ /dev/null @@ -1,33 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2016 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 <util.h> - -#include "tests.h" - -char* setup_fake_runtime_dir(void) { - char t[] = "/tmp/fake-xdg-runtime-XXXXXX", *p; - - assert_se(mkdtemp(t)); - assert_se(setenv("XDG_RUNTIME_DIR", t, 1) >= 0); - assert_se(p = strdup(t)); - - return p; -} diff --git a/src/shared/tests.h b/src/shared/tests.h deleted file mode 100644 index 93f09013a1..0000000000 --- a/src/shared/tests.h +++ /dev/null @@ -1,22 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2016 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/>. -***/ - -char* setup_fake_runtime_dir(void); diff --git a/src/shared/udev-util.h b/src/shared/udev-util.h deleted file mode 100644 index ca0889f8a6..0000000000 --- a/src/shared/udev-util.h +++ /dev/null @@ -1,44 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 Zbigniew Jędrzejewski-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 "udev.h" -#include "util.h" - -DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev*, udev_unref); -DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_device*, udev_device_unref); -DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_enumerate*, udev_enumerate_unref); -DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_event*, udev_event_unref); -DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_rules*, udev_rules_unref); -DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_ctrl*, udev_ctrl_unref); -DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_ctrl_connection*, udev_ctrl_connection_unref); -DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_ctrl_msg*, udev_ctrl_msg_unref); -DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_monitor*, udev_monitor_unref); - -#define _cleanup_udev_unref_ _cleanup_(udev_unrefp) -#define _cleanup_udev_device_unref_ _cleanup_(udev_device_unrefp) -#define _cleanup_udev_enumerate_unref_ _cleanup_(udev_enumerate_unrefp) -#define _cleanup_udev_event_unref_ _cleanup_(udev_event_unrefp) -#define _cleanup_udev_rules_unref_ _cleanup_(udev_rules_unrefp) -#define _cleanup_udev_ctrl_unref_ _cleanup_(udev_ctrl_unrefp) -#define _cleanup_udev_ctrl_connection_unref_ _cleanup_(udev_ctrl_connection_unrefp) -#define _cleanup_udev_ctrl_msg_unref_ _cleanup_(udev_ctrl_msg_unrefp) -#define _cleanup_udev_monitor_unref_ _cleanup_(udev_monitor_unrefp) -#define _cleanup_udev_list_cleanup_ _cleanup_(udev_list_cleanup) diff --git a/src/shared/uid-range.c b/src/shared/uid-range.c deleted file mode 100644 index b6ec474390..0000000000 --- a/src/shared/uid-range.c +++ /dev/null @@ -1,208 +0,0 @@ -/*** - 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 <errno.h> -#include <stdlib.h> -#include <string.h> - -#include "macro.h" -#include "uid-range.h" -#include "user-util.h" - -static bool uid_range_intersect(UidRange *range, uid_t start, uid_t nr) { - assert(range); - - return range->start <= start + nr && - range->start + range->nr >= start; -} - -static void uid_range_coalesce(UidRange **p, unsigned *n) { - unsigned i, j; - - assert(p); - assert(n); - - for (i = 0; i < *n; i++) { - for (j = i + 1; j < *n; j++) { - UidRange *x = (*p)+i, *y = (*p)+j; - - if (uid_range_intersect(x, y->start, y->nr)) { - uid_t begin, end; - - begin = MIN(x->start, y->start); - end = MAX(x->start + x->nr, y->start + y->nr); - - x->start = begin; - x->nr = end - begin; - - if (*n > j+1) - memmove(y, y+1, sizeof(UidRange) * (*n - j -1)); - - (*n)--; - j--; - } - } - } - -} - -static int uid_range_compare(const void *a, const void *b) { - const UidRange *x = a, *y = b; - - if (x->start < y->start) - return -1; - if (x->start > y->start) - return 1; - - if (x->nr < y->nr) - return -1; - if (x->nr > y->nr) - return 1; - - return 0; -} - -int uid_range_add(UidRange **p, unsigned *n, uid_t start, uid_t nr) { - bool found = false; - UidRange *x; - unsigned i; - - assert(p); - assert(n); - - if (nr <= 0) - return 0; - - for (i = 0; i < *n; i++) { - x = (*p) + i; - if (uid_range_intersect(x, start, nr)) { - found = true; - break; - } - } - - if (found) { - uid_t begin, end; - - begin = MIN(x->start, start); - end = MAX(x->start + x->nr, start + nr); - - x->start = begin; - x->nr = end - begin; - } else { - UidRange *t; - - t = realloc(*p, sizeof(UidRange) * (*n + 1)); - if (!t) - return -ENOMEM; - - *p = t; - x = t + ((*n) ++); - - x->start = start; - x->nr = nr; - } - - qsort(*p, *n, sizeof(UidRange), uid_range_compare); - uid_range_coalesce(p, n); - - return *n; -} - -int uid_range_add_str(UidRange **p, unsigned *n, const char *s) { - uid_t start, nr; - const char *t; - int r; - - assert(p); - assert(n); - assert(s); - - t = strchr(s, '-'); - if (t) { - char *b; - uid_t end; - - b = strndupa(s, t - s); - r = parse_uid(b, &start); - if (r < 0) - return r; - - r = parse_uid(t+1, &end); - if (r < 0) - return r; - - if (end < start) - return -EINVAL; - - nr = end - start + 1; - } else { - r = parse_uid(s, &start); - if (r < 0) - return r; - - nr = 1; - } - - return uid_range_add(p, n, start, nr); -} - -int uid_range_next_lower(const UidRange *p, unsigned n, uid_t *uid) { - uid_t closest = UID_INVALID, candidate; - unsigned i; - - assert(p); - assert(uid); - - candidate = *uid - 1; - - for (i = 0; i < n; i++) { - uid_t begin, end; - - begin = p[i].start; - end = p[i].start + p[i].nr - 1; - - if (candidate >= begin && candidate <= end) { - *uid = candidate; - return 1; - } - - if (end < candidate) - closest = end; - } - - if (closest == UID_INVALID) - return -EBUSY; - - *uid = closest; - return 1; -} - -bool uid_range_contains(const UidRange *p, unsigned n, uid_t uid) { - unsigned i; - - assert(p); - assert(uid); - - for (i = 0; i < n; i++) - if (uid >= p[i].start && uid < p[i].start + p[i].nr) - return true; - - return false; -} diff --git a/src/shared/uid-range.h b/src/shared/uid-range.h deleted file mode 100644 index 4044eb4c9c..0000000000 --- a/src/shared/uid-range.h +++ /dev/null @@ -1,33 +0,0 @@ -#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 <stdbool.h> -#include <sys/types.h> - -typedef struct UidRange { - uid_t start, nr; -} UidRange; - -int uid_range_add(UidRange **p, unsigned *n, uid_t start, uid_t nr); -int uid_range_add_str(UidRange **p, unsigned *n, const char *s); - -int uid_range_next_lower(const UidRange *p, unsigned n, uid_t *uid); -bool uid_range_contains(const UidRange *p, unsigned n, uid_t uid); diff --git a/src/shared/utmp-wtmp.c b/src/shared/utmp-wtmp.c deleted file mode 100644 index 9750dcd817..0000000000 --- a/src/shared/utmp-wtmp.c +++ /dev/null @@ -1,445 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <poll.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/time.h> -#include <sys/utsname.h> -#include <unistd.h> -#include <utmpx.h> - -#include "alloc-util.h" -#include "fd-util.h" -#include "hostname-util.h" -#include "macro.h" -#include "path-util.h" -#include "string-util.h" -#include "terminal-util.h" -#include "time-util.h" -#include "user-util.h" -#include "util.h" -#include "utmp-wtmp.h" - -int utmp_get_runlevel(int *runlevel, int *previous) { - struct utmpx *found, lookup = { .ut_type = RUN_LVL }; - int r; - const char *e; - - assert(runlevel); - - /* If these values are set in the environment this takes - * precedence. Presumably, sysvinit does this to work around a - * race condition that would otherwise exist where we'd always - * go to disk and hence might read runlevel data that might be - * very new and does not apply to the current script being - * executed. */ - - e = getenv("RUNLEVEL"); - if (e && e[0] > 0) { - *runlevel = e[0]; - - if (previous) { - /* $PREVLEVEL seems to be an Upstart thing */ - - e = getenv("PREVLEVEL"); - if (e && e[0] > 0) - *previous = e[0]; - else - *previous = 0; - } - - return 0; - } - - if (utmpxname(_PATH_UTMPX) < 0) - return -errno; - - setutxent(); - - found = getutxid(&lookup); - if (!found) - r = -errno; - else { - int a, b; - - a = found->ut_pid & 0xFF; - b = (found->ut_pid >> 8) & 0xFF; - - *runlevel = a; - if (previous) - *previous = b; - - r = 0; - } - - endutxent(); - - return r; -} - -static void init_timestamp(struct utmpx *store, usec_t t) { - assert(store); - - if (t <= 0) - t = now(CLOCK_REALTIME); - - store->ut_tv.tv_sec = t / USEC_PER_SEC; - store->ut_tv.tv_usec = t % USEC_PER_SEC; -} - -static void init_entry(struct utmpx *store, usec_t t) { - struct utsname uts = {}; - - assert(store); - - init_timestamp(store, t); - - if (uname(&uts) >= 0) - strncpy(store->ut_host, uts.release, sizeof(store->ut_host)); - - strncpy(store->ut_line, "~", sizeof(store->ut_line)); /* or ~~ ? */ - strncpy(store->ut_id, "~~", sizeof(store->ut_id)); -} - -static int write_entry_utmp(const struct utmpx *store) { - int r; - - assert(store); - - /* utmp is similar to wtmp, but there is only one entry for - * each entry type resp. user; i.e. basically a key/value - * table. */ - - if (utmpxname(_PATH_UTMPX) < 0) - return -errno; - - setutxent(); - - if (!pututxline(store)) - r = -errno; - else - r = 0; - - endutxent(); - - return r; -} - -static int write_entry_wtmp(const struct utmpx *store) { - assert(store); - - /* wtmp is a simple append-only file where each entry is - simply appended to the end; i.e. basically a log. */ - - errno = 0; - updwtmpx(_PATH_WTMPX, store); - return -errno; -} - -static int write_utmp_wtmp(const struct utmpx *store_utmp, const struct utmpx *store_wtmp) { - int r, s; - - r = write_entry_utmp(store_utmp); - s = write_entry_wtmp(store_wtmp); - - if (r >= 0) - r = s; - - /* If utmp/wtmp have been disabled, that's a good thing, hence - * ignore the errors */ - if (r == -ENOENT) - r = 0; - - return r; -} - -static int write_entry_both(const struct utmpx *store) { - return write_utmp_wtmp(store, store); -} - -int utmp_put_shutdown(void) { - struct utmpx store = {}; - - init_entry(&store, 0); - - store.ut_type = RUN_LVL; - strncpy(store.ut_user, "shutdown", sizeof(store.ut_user)); - - return write_entry_both(&store); -} - -int utmp_put_reboot(usec_t t) { - struct utmpx store = {}; - - init_entry(&store, t); - - store.ut_type = BOOT_TIME; - strncpy(store.ut_user, "reboot", sizeof(store.ut_user)); - - return write_entry_both(&store); -} - -_pure_ static const char *sanitize_id(const char *id) { - size_t l; - - assert(id); - l = strlen(id); - - if (l <= sizeof(((struct utmpx*) NULL)->ut_id)) - return id; - - return id + l - sizeof(((struct utmpx*) NULL)->ut_id); -} - -int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user) { - struct utmpx store = { - .ut_type = INIT_PROCESS, - .ut_pid = pid, - .ut_session = sid, - }; - int r; - - assert(id); - - init_timestamp(&store, 0); - - /* ut_id needs only be nul-terminated if it is shorter than sizeof(ut_id) */ - strncpy(store.ut_id, sanitize_id(id), sizeof(store.ut_id)); - - if (line) - strncpy(store.ut_line, basename(line), sizeof(store.ut_line)); - - r = write_entry_both(&store); - if (r < 0) - return r; - - if (ut_type == LOGIN_PROCESS || ut_type == USER_PROCESS) { - store.ut_type = LOGIN_PROCESS; - r = write_entry_both(&store); - if (r < 0) - return r; - } - - if (ut_type == USER_PROCESS) { - store.ut_type = USER_PROCESS; - strncpy(store.ut_user, user, sizeof(store.ut_user)-1); - r = write_entry_both(&store); - if (r < 0) - return r; - } - - return 0; -} - -int utmp_put_dead_process(const char *id, pid_t pid, int code, int status) { - struct utmpx lookup = { - .ut_type = INIT_PROCESS /* looks for DEAD_PROCESS, LOGIN_PROCESS, USER_PROCESS, too */ - }, store, store_wtmp, *found; - - assert(id); - - setutxent(); - - /* ut_id needs only be nul-terminated if it is shorter than sizeof(ut_id) */ - strncpy(lookup.ut_id, sanitize_id(id), sizeof(lookup.ut_id)); - - found = getutxid(&lookup); - if (!found) - return 0; - - if (found->ut_pid != pid) - return 0; - - memcpy(&store, found, sizeof(store)); - store.ut_type = DEAD_PROCESS; - store.ut_exit.e_termination = code; - store.ut_exit.e_exit = status; - - zero(store.ut_user); - zero(store.ut_host); - zero(store.ut_tv); - - memcpy(&store_wtmp, &store, sizeof(store_wtmp)); - /* wtmp wants the current time */ - init_timestamp(&store_wtmp, 0); - - return write_utmp_wtmp(&store, &store_wtmp); -} - - -int utmp_put_runlevel(int runlevel, int previous) { - struct utmpx store = {}; - int r; - - assert(runlevel > 0); - - if (previous <= 0) { - /* Find the old runlevel automatically */ - - r = utmp_get_runlevel(&previous, NULL); - if (r < 0) { - if (r != -ESRCH) - return r; - - previous = 0; - } - } - - if (previous == runlevel) - return 0; - - init_entry(&store, 0); - - store.ut_type = RUN_LVL; - store.ut_pid = (runlevel & 0xFF) | ((previous & 0xFF) << 8); - strncpy(store.ut_user, "runlevel", sizeof(store.ut_user)); - - return write_entry_both(&store); -} - -#define TIMEOUT_MSEC 50 - -static int write_to_terminal(const char *tty, const char *message) { - _cleanup_close_ int fd = -1; - const char *p; - size_t left; - usec_t end; - - assert(tty); - assert(message); - - fd = open(tty, O_WRONLY|O_NDELAY|O_NOCTTY|O_CLOEXEC); - if (fd < 0 || !isatty(fd)) - return -errno; - - p = message; - left = strlen(message); - - end = now(CLOCK_MONOTONIC) + TIMEOUT_MSEC*USEC_PER_MSEC; - - while (left > 0) { - ssize_t n; - struct pollfd pollfd = { - .fd = fd, - .events = POLLOUT, - }; - usec_t t; - int k; - - t = now(CLOCK_MONOTONIC); - - if (t >= end) - return -ETIME; - - k = poll(&pollfd, 1, (end - t) / USEC_PER_MSEC); - if (k < 0) - return -errno; - - if (k == 0) - return -ETIME; - - n = write(fd, p, left); - if (n < 0) { - if (errno == EAGAIN) - continue; - - return -errno; - } - - assert((size_t) n <= left); - - p += n; - left -= n; - } - - return 0; -} - -int utmp_wall( - const char *message, - const char *username, - const char *origin_tty, - bool (*match_tty)(const char *tty, void *userdata), - void *userdata) { - - _cleanup_free_ char *text = NULL, *hn = NULL, *un = NULL, *stdin_tty = NULL; - char date[FORMAT_TIMESTAMP_MAX]; - struct utmpx *u; - int r; - - hn = gethostname_malloc(); - if (!hn) - return -ENOMEM; - if (!username) { - un = getlogname_malloc(); - if (!un) - return -ENOMEM; - } - - if (!origin_tty) { - getttyname_harder(STDIN_FILENO, &stdin_tty); - origin_tty = stdin_tty; - } - - if (asprintf(&text, - "\a\r\n" - "Broadcast message from %s@%s%s%s (%s):\r\n\r\n" - "%s\r\n\r\n", - un ?: username, hn, - origin_tty ? " on " : "", strempty(origin_tty), - format_timestamp(date, sizeof(date), now(CLOCK_REALTIME)), - message) < 0) - return -ENOMEM; - - setutxent(); - - r = 0; - - while ((u = getutxent())) { - _cleanup_free_ char *buf = NULL; - const char *path; - int q; - - if (u->ut_type != USER_PROCESS || u->ut_user[0] == 0) - continue; - - /* this access is fine, because strlen("/dev/") << 32 (UT_LINESIZE) */ - if (path_startswith(u->ut_line, "/dev/")) - path = u->ut_line; - else { - if (asprintf(&buf, "/dev/%.*s", (int) sizeof(u->ut_line), u->ut_line) < 0) - return -ENOMEM; - - path = buf; - } - - if (!match_tty || match_tty(path, userdata)) { - q = write_to_terminal(path, text); - if (q < 0) - r = q; - } - } - - return r; -} diff --git a/src/shared/utmp-wtmp.h b/src/shared/utmp-wtmp.h deleted file mode 100644 index 438e270a26..0000000000 --- a/src/shared/utmp-wtmp.h +++ /dev/null @@ -1,74 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 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 "time-util.h" -#include "util.h" - -#ifdef HAVE_UTMP -int utmp_get_runlevel(int *runlevel, int *previous); - -int utmp_put_shutdown(void); -int utmp_put_reboot(usec_t timestamp); -int utmp_put_runlevel(int runlevel, int previous); - -int utmp_put_dead_process(const char *id, pid_t pid, int code, int status); -int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user); - -int utmp_wall( - const char *message, - const char *username, - const char *origin_tty, - bool (*match_tty)(const char *tty, void *userdata), - void *userdata); - -#else /* HAVE_UTMP */ - -static inline int utmp_get_runlevel(int *runlevel, int *previous) { - return -ESRCH; -} -static inline int utmp_put_shutdown(void) { - return 0; -} -static inline int utmp_put_reboot(usec_t timestamp) { - return 0; -} -static inline int utmp_put_runlevel(int runlevel, int previous) { - return 0; -} -static inline int utmp_put_dead_process(const char *id, pid_t pid, int code, int status) { - return 0; -} -static inline int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user) { - return 0; -} -static inline int utmp_wall( - const char *message, - const char *username, - const char *origin_tty, - bool (*match_tty)(const char *tty, void *userdata), - void *userdata) { - return 0; -} - -#endif /* HAVE_UTMP */ diff --git a/src/shared/vlan-util.c b/src/shared/vlan-util.c deleted file mode 100644 index 78d66dd3d9..0000000000 --- a/src/shared/vlan-util.c +++ /dev/null @@ -1,69 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2016 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 "vlan-util.h" -#include "parse-util.h" -#include "conf-parser.h" - -int parse_vlanid(const char *p, uint16_t *ret) { - uint16_t id; - int r; - - r = safe_atou16(p, &id); - if (r < 0) - return r; - if (!vlanid_is_valid(id)) - return -ERANGE; - - *ret = id; - return 0; -} - -int config_parse_vlanid( - 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) { - - uint16_t *id = data; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - r = parse_vlanid(rvalue, id); - if (r == -ERANGE) { - log_syntax(unit, LOG_ERR, filename, line, r, "VLAN identifier outside of valid range 0…4094, ignoring: %s", rvalue); - return 0; - } - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VLAN identifier value, ignoring: %s", rvalue); - return 0; - } - - return 0; -} diff --git a/src/shared/vlan-util.h b/src/shared/vlan-util.h deleted file mode 100644 index ce6763b3a3..0000000000 --- a/src/shared/vlan-util.h +++ /dev/null @@ -1,35 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2016 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 <inttypes.h> - -#define VLANID_MAX 4094 -#define VLANID_INVALID UINT16_MAX - -/* Note that we permit VLAN Id 0 here, as that is apparently OK by the Linux kernel */ -static inline bool vlanid_is_valid(uint16_t id) { - return id <= VLANID_MAX; -} - -int parse_vlanid(const char *p, uint16_t *ret); - -int config_parse_vlanid(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); diff --git a/src/shared/watchdog.c b/src/shared/watchdog.c deleted file mode 100644 index 4f3e0125f3..0000000000 --- a/src/shared/watchdog.c +++ /dev/null @@ -1,164 +0,0 @@ -/*** - 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 <fcntl.h> -#include <sys/ioctl.h> -#include <syslog.h> -#include <unistd.h> -#include <linux/watchdog.h> - -#include "fd-util.h" -#include "log.h" -#include "time-util.h" -#include "watchdog.h" - -static int watchdog_fd = -1; -static usec_t watchdog_timeout = USEC_INFINITY; - -static int update_timeout(void) { - int r; - - if (watchdog_fd < 0) - return 0; - - if (watchdog_timeout == USEC_INFINITY) - return 0; - else if (watchdog_timeout == 0) { - int flags; - - flags = WDIOS_DISABLECARD; - r = ioctl(watchdog_fd, WDIOC_SETOPTIONS, &flags); - if (r < 0) - return log_warning_errno(errno, "Failed to disable hardware watchdog: %m"); - } else { - int sec, flags; - char buf[FORMAT_TIMESPAN_MAX]; - - sec = (int) ((watchdog_timeout + USEC_PER_SEC - 1) / USEC_PER_SEC); - r = ioctl(watchdog_fd, WDIOC_SETTIMEOUT, &sec); - if (r < 0) - return log_warning_errno(errno, "Failed to set timeout to %is: %m", sec); - - watchdog_timeout = (usec_t) sec * USEC_PER_SEC; - log_info("Set hardware watchdog to %s.", format_timespan(buf, sizeof(buf), watchdog_timeout, 0)); - - flags = WDIOS_ENABLECARD; - r = ioctl(watchdog_fd, WDIOC_SETOPTIONS, &flags); - if (r < 0) { - /* ENOTTY means the watchdog is always enabled so we're fine */ - log_full(errno == ENOTTY ? LOG_DEBUG : LOG_WARNING, - "Failed to enable hardware watchdog: %m"); - if (errno != ENOTTY) - return -errno; - } - - r = ioctl(watchdog_fd, WDIOC_KEEPALIVE, 0); - if (r < 0) - return log_warning_errno(errno, "Failed to ping hardware watchdog: %m"); - } - - return 0; -} - -static int open_watchdog(void) { - struct watchdog_info ident; - - if (watchdog_fd >= 0) - return 0; - - watchdog_fd = open("/dev/watchdog", O_WRONLY|O_CLOEXEC); - if (watchdog_fd < 0) - return -errno; - - if (ioctl(watchdog_fd, WDIOC_GETSUPPORT, &ident) >= 0) - log_info("Hardware watchdog '%s', version %x", - ident.identity, - ident.firmware_version); - - return update_timeout(); -} - -int watchdog_set_timeout(usec_t *usec) { - int r; - - watchdog_timeout = *usec; - - /* If we didn't open the watchdog yet and didn't get any - * explicit timeout value set, don't do anything */ - if (watchdog_fd < 0 && watchdog_timeout == USEC_INFINITY) - return 0; - - if (watchdog_fd < 0) - r = open_watchdog(); - else - r = update_timeout(); - - *usec = watchdog_timeout; - - return r; -} - -int watchdog_ping(void) { - int r; - - if (watchdog_fd < 0) { - r = open_watchdog(); - if (r < 0) - return r; - } - - r = ioctl(watchdog_fd, WDIOC_KEEPALIVE, 0); - if (r < 0) - return log_warning_errno(errno, "Failed to ping hardware watchdog: %m"); - - return 0; -} - -void watchdog_close(bool disarm) { - int r; - - if (watchdog_fd < 0) - return; - - if (disarm) { - int flags; - - /* Explicitly disarm it */ - flags = WDIOS_DISABLECARD; - r = ioctl(watchdog_fd, WDIOC_SETOPTIONS, &flags); - if (r < 0) - log_warning_errno(errno, "Failed to disable hardware watchdog: %m"); - - /* To be sure, use magic close logic, too */ - for (;;) { - static const char v = 'V'; - - if (write(watchdog_fd, &v, 1) > 0) - break; - - if (errno != EINTR) { - log_error_errno(errno, "Failed to disarm watchdog timer: %m"); - break; - } - } - } - - watchdog_fd = safe_close(watchdog_fd); -} diff --git a/src/shared/watchdog.h b/src/shared/watchdog.h deleted file mode 100644 index f6ec178ea1..0000000000 --- a/src/shared/watchdog.h +++ /dev/null @@ -1,29 +0,0 @@ -#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 "time-util.h" -#include "util.h" - -int watchdog_set_timeout(usec_t *usec); -int watchdog_ping(void); -void watchdog_close(bool disarm); |