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-rw-r--r--src/journal/journal-verify.c1163
1 files changed, 0 insertions, 1163 deletions
diff --git a/src/journal/journal-verify.c b/src/journal/journal-verify.c
deleted file mode 100644
index 1a67d5a04b..0000000000
--- a/src/journal/journal-verify.c
+++ /dev/null
@@ -1,1163 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2012 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <unistd.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <stddef.h>
-
-#include "util.h"
-#include "macro.h"
-#include "journal-def.h"
-#include "journal-file.h"
-#include "journal-authenticate.h"
-#include "journal-verify.h"
-#include "lookup3.h"
-#include "compress.h"
-#include "fsprg.h"
-
-static int journal_file_object_verify(JournalFile *f, Object *o) {
- uint64_t i;
-
- assert(f);
- assert(o);
-
- /* This does various superficial tests about the length an
- * possible field values. It does not follow any references to
- * other objects. */
-
- if ((o->object.flags & OBJECT_COMPRESSED) &&
- o->object.type != OBJECT_DATA)
- return -EBADMSG;
-
- switch (o->object.type) {
-
- case OBJECT_DATA: {
- uint64_t h1, h2;
-
- if (le64toh(o->data.entry_offset) <= 0 ||
- le64toh(o->data.n_entries) <= 0)
- return -EBADMSG;
-
- if (le64toh(o->object.size) - offsetof(DataObject, payload) <= 0)
- return -EBADMSG;
-
- h1 = le64toh(o->data.hash);
-
- if (o->object.flags & OBJECT_COMPRESSED) {
-#ifdef HAVE_XZ
- void *b = NULL;
- uint64_t alloc = 0, b_size;
-
- if (!uncompress_blob(o->data.payload,
- le64toh(o->object.size) - offsetof(Object, data.payload),
- &b, &alloc, &b_size))
- return -EBADMSG;
-
- h2 = hash64(b, b_size);
- free(b);
-#else
- return -EPROTONOSUPPORT;
-#endif
- } else
- h2 = hash64(o->data.payload, le64toh(o->object.size) - offsetof(Object, data.payload));
-
- if (h1 != h2)
- return -EBADMSG;
-
- if (!VALID64(o->data.next_hash_offset) ||
- !VALID64(o->data.next_field_offset) ||
- !VALID64(o->data.entry_offset) ||
- !VALID64(o->data.entry_array_offset))
- return -EBADMSG;
-
- break;
- }
-
- case OBJECT_FIELD:
- if (le64toh(o->object.size) - offsetof(FieldObject, payload) <= 0)
- return -EBADMSG;
-
- if (!VALID64(o->field.next_hash_offset) ||
- !VALID64(o->field.head_data_offset))
- return -EBADMSG;
- break;
-
- case OBJECT_ENTRY:
- if ((le64toh(o->object.size) - offsetof(EntryObject, items)) % sizeof(EntryItem) != 0)
- return -EBADMSG;
-
- if ((le64toh(o->object.size) - offsetof(EntryObject, items)) / sizeof(EntryItem) <= 0)
- return -EBADMSG;
-
- if (le64toh(o->entry.seqnum) <= 0 ||
- !VALID_REALTIME(le64toh(o->entry.realtime)) ||
- !VALID_MONOTONIC(le64toh(o->entry.monotonic)))
- return -EBADMSG;
-
- for (i = 0; i < journal_file_entry_n_items(o); i++) {
- if (o->entry.items[i].object_offset == 0 ||
- !VALID64(o->entry.items[i].object_offset))
- return -EBADMSG;
- }
-
- break;
-
- case OBJECT_DATA_HASH_TABLE:
- case OBJECT_FIELD_HASH_TABLE:
- if ((le64toh(o->object.size) - offsetof(HashTableObject, items)) % sizeof(HashItem) != 0)
- return -EBADMSG;
-
- if ((le64toh(o->object.size) - offsetof(HashTableObject, items)) / sizeof(HashItem) <= 0)
- return -EBADMSG;
-
- for (i = 0; i < journal_file_hash_table_n_items(o); i++) {
- if (o->hash_table.items[i].head_hash_offset != 0 &&
- !VALID64(le64toh(o->hash_table.items[i].head_hash_offset)))
- return -EBADMSG;
- if (o->hash_table.items[i].tail_hash_offset != 0 &&
- !VALID64(le64toh(o->hash_table.items[i].tail_hash_offset)))
- return -EBADMSG;
-
- if ((o->hash_table.items[i].head_hash_offset != 0) !=
- (o->hash_table.items[i].tail_hash_offset != 0))
- return -EBADMSG;
- }
-
- break;
-
- case OBJECT_ENTRY_ARRAY:
- if ((le64toh(o->object.size) - offsetof(EntryArrayObject, items)) % sizeof(le64_t) != 0)
- return -EBADMSG;
-
- if ((le64toh(o->object.size) - offsetof(EntryArrayObject, items)) / sizeof(le64_t) <= 0)
- return -EBADMSG;
-
- if (!VALID64(o->entry_array.next_entry_array_offset))
- return -EBADMSG;
-
- for (i = 0; i < journal_file_entry_array_n_items(o); i++)
- if (o->entry_array.items[i] != 0 &&
- !VALID64(o->entry_array.items[i]))
- return -EBADMSG;
-
- break;
-
- case OBJECT_TAG:
- if (le64toh(o->object.size) != sizeof(TagObject))
- return -EBADMSG;
-
- if (!VALID_EPOCH(o->tag.epoch))
- return -EBADMSG;
-
- break;
- }
-
- return 0;
-}
-
-static void draw_progress(uint64_t p, usec_t *last_usec) {
- unsigned n, i, j, k;
- usec_t z, x;
-
- if (!on_tty())
- return;
-
- z = now(CLOCK_MONOTONIC);
- x = *last_usec;
-
- if (x != 0 && x + 40 * USEC_PER_MSEC > z)
- return;
-
- *last_usec = z;
-
- n = (3 * columns()) / 4;
- j = (n * (unsigned) p) / 65535ULL;
- k = n - j;
-
- fputs("\r\x1B[?25l" ANSI_HIGHLIGHT_GREEN_ON, stdout);
-
- for (i = 0; i < j; i++)
- fputs("\xe2\x96\x88", stdout);
-
- fputs(ANSI_HIGHLIGHT_OFF, stdout);
-
- for (i = 0; i < k; i++)
- fputs("\xe2\x96\x91", stdout);
-
- printf(" %3lu%%", 100LU * (unsigned long) p / 65535LU);
-
- fputs("\r\x1B[?25h", stdout);
- fflush(stdout);
-}
-
-static void flush_progress(void) {
- unsigned n, i;
-
- if (!on_tty())
- return;
-
- n = (3 * columns()) / 4;
-
- putchar('\r');
-
- for (i = 0; i < n + 5; i++)
- putchar(' ');
-
- putchar('\r');
- fflush(stdout);
-}
-
-static int write_uint64(int fd, uint64_t p) {
- ssize_t k;
-
- k = write(fd, &p, sizeof(p));
- if (k < 0)
- return -errno;
- if (k != sizeof(p))
- return -EIO;
-
- return 0;
-}
-
-static int contains_uint64(MMapCache *m, int fd, uint64_t n, uint64_t p) {
- uint64_t a, b;
- int r;
-
- assert(m);
- assert(fd >= 0);
-
- /* Bisection ... */
-
- a = 0; b = n;
- while (a < b) {
- uint64_t c, *z;
-
- c = (a + b) / 2;
-
- r = mmap_cache_get(m, fd, PROT_READ|PROT_WRITE, 0, false, c * sizeof(uint64_t), sizeof(uint64_t), NULL, (void **) &z);
- if (r < 0)
- return r;
-
- if (*z == p)
- return 1;
-
- if (a + 1 >= b)
- return 0;
-
- if (p < *z)
- b = c;
- else
- a = c;
- }
-
- return 0;
-}
-
-static int entry_points_to_data(
- JournalFile *f,
- int entry_fd,
- uint64_t n_entries,
- uint64_t entry_p,
- uint64_t data_p) {
-
- int r;
- uint64_t i, n, a;
- Object *o;
- bool found = false;
-
- assert(f);
- assert(entry_fd >= 0);
-
- if (!contains_uint64(f->mmap, entry_fd, n_entries, entry_p)) {
- log_error("Data object references invalid entry at %llu", (unsigned long long) data_p);
- return -EBADMSG;
- }
-
- r = journal_file_move_to_object(f, OBJECT_ENTRY, entry_p, &o);
- if (r < 0)
- return r;
-
- n = journal_file_entry_n_items(o);
- for (i = 0; i < n; i++)
- if (le64toh(o->entry.items[i].object_offset) == data_p) {
- found = true;
- break;
- }
-
- if (!found) {
- log_error("Data object not referenced by linked entry at %llu", (unsigned long long) data_p);
- return -EBADMSG;
- }
-
- /* Check if this entry is also in main entry array. Since the
- * main entry array has already been verified we can rely on
- * its consistency.*/
-
- i = 0;
- n = le64toh(f->header->n_entries);
- a = le64toh(f->header->entry_array_offset);
-
- while (i < n) {
- uint64_t m, u;
-
- r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
- if (r < 0)
- return r;
-
- m = journal_file_entry_array_n_items(o);
- u = MIN(n - i, m);
-
- if (entry_p <= le64toh(o->entry_array.items[u-1])) {
- uint64_t x, y, z;
-
- x = 0;
- y = u;
-
- while (x < y) {
- z = (x + y) / 2;
-
- if (le64toh(o->entry_array.items[z]) == entry_p)
- return 0;
-
- if (x + 1 >= y)
- break;
-
- if (entry_p < le64toh(o->entry_array.items[z]))
- y = z;
- else
- x = z;
- }
-
- log_error("Entry object doesn't exist in main entry array at %llu", (unsigned long long) entry_p);
- return -EBADMSG;
- }
-
- i += u;
- a = le64toh(o->entry_array.next_entry_array_offset);
- }
-
- return 0;
-}
-
-static int verify_data(
- JournalFile *f,
- Object *o, uint64_t p,
- int entry_fd, uint64_t n_entries,
- int entry_array_fd, uint64_t n_entry_arrays) {
-
- uint64_t i, n, a, last, q;
- int r;
-
- assert(f);
- assert(o);
- assert(entry_fd >= 0);
- assert(entry_array_fd >= 0);
-
- n = le64toh(o->data.n_entries);
- a = le64toh(o->data.entry_array_offset);
-
- /* We already checked this earlier */
- assert(n > 0);
-
- last = q = le64toh(o->data.entry_offset);
- r = entry_points_to_data(f, entry_fd, n_entries, q, p);
- if (r < 0)
- return r;
-
- i = 1;
- while (i < n) {
- uint64_t next, m, j;
-
- if (a == 0) {
- log_error("Array chain too short at %llu", (unsigned long long) p);
- return -EBADMSG;
- }
-
- if (!contains_uint64(f->mmap, entry_array_fd, n_entry_arrays, a)) {
- log_error("Invalid array at %llu", (unsigned long long) p);
- return -EBADMSG;
- }
-
- r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
- if (r < 0)
- return r;
-
- next = le64toh(o->entry_array.next_entry_array_offset);
- if (next != 0 && next <= a) {
- log_error("Array chain has cycle at %llu", (unsigned long long) p);
- return -EBADMSG;
- }
-
- m = journal_file_entry_array_n_items(o);
- for (j = 0; i < n && j < m; i++, j++) {
-
- q = le64toh(o->entry_array.items[j]);
- if (q <= last) {
- log_error("Data object's entry array not sorted at %llu", (unsigned long long) p);
- return -EBADMSG;
- }
- last = q;
-
- r = entry_points_to_data(f, entry_fd, n_entries, q, p);
- if (r < 0)
- return r;
-
- /* Pointer might have moved, reposition */
- r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
- if (r < 0)
- return r;
- }
-
- a = next;
- }
-
- return 0;
-}
-
-static int verify_hash_table(
- JournalFile *f,
- int data_fd, uint64_t n_data,
- int entry_fd, uint64_t n_entries,
- int entry_array_fd, uint64_t n_entry_arrays,
- usec_t *last_usec,
- bool show_progress) {
-
- uint64_t i, n;
- int r;
-
- assert(f);
- assert(data_fd >= 0);
- assert(entry_fd >= 0);
- assert(entry_array_fd >= 0);
- assert(last_usec);
-
- n = le64toh(f->header->data_hash_table_size) / sizeof(HashItem);
- for (i = 0; i < n; i++) {
- uint64_t last = 0, p;
-
- if (show_progress)
- draw_progress(0xC000 + (0x3FFF * i / n), last_usec);
-
- p = le64toh(f->data_hash_table[i].head_hash_offset);
- while (p != 0) {
- Object *o;
- uint64_t next;
-
- if (!contains_uint64(f->mmap, data_fd, n_data, p)) {
- log_error("Invalid data object at hash entry %llu of %llu",
- (unsigned long long) i, (unsigned long long) n);
- return -EBADMSG;
- }
-
- r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
- if (r < 0)
- return r;
-
- next = le64toh(o->data.next_hash_offset);
- if (next != 0 && next <= p) {
- log_error("Hash chain has a cycle in hash entry %llu of %llu",
- (unsigned long long) i, (unsigned long long) n);
- return -EBADMSG;
- }
-
- if (le64toh(o->data.hash) % n != i) {
- log_error("Hash value mismatch in hash entry %llu of %llu",
- (unsigned long long) i, (unsigned long long) n);
- return -EBADMSG;
- }
-
- r = verify_data(f, o, p, entry_fd, n_entries, entry_array_fd, n_entry_arrays);
- if (r < 0)
- return r;
-
- last = p;
- p = next;
- }
-
- if (last != le64toh(f->data_hash_table[i].tail_hash_offset)) {
- log_error("Tail hash pointer mismatch in hash table");
- return -EBADMSG;
- }
- }
-
- return 0;
-}
-
-static int data_object_in_hash_table(JournalFile *f, uint64_t hash, uint64_t p) {
- uint64_t n, h, q;
- int r;
- assert(f);
-
- n = le64toh(f->header->data_hash_table_size) / sizeof(HashItem);
- h = hash % n;
-
- q = le64toh(f->data_hash_table[h].head_hash_offset);
- while (q != 0) {
- Object *o;
-
- if (p == q)
- return 1;
-
- r = journal_file_move_to_object(f, OBJECT_DATA, q, &o);
- if (r < 0)
- return r;
-
- q = le64toh(o->data.next_hash_offset);
- }
-
- return 0;
-}
-
-static int verify_entry(
- JournalFile *f,
- Object *o, uint64_t p,
- int data_fd, uint64_t n_data) {
-
- uint64_t i, n;
- int r;
-
- assert(f);
- assert(o);
- assert(data_fd >= 0);
-
- n = journal_file_entry_n_items(o);
- for (i = 0; i < n; i++) {
- uint64_t q, h;
- Object *u;
-
- q = le64toh(o->entry.items[i].object_offset);
- h = le64toh(o->entry.items[i].hash);
-
- if (!contains_uint64(f->mmap, data_fd, n_data, q)) {
- log_error("Invalid data object at entry %llu",
- (unsigned long long) p);
- return -EBADMSG;
- }
-
- r = journal_file_move_to_object(f, OBJECT_DATA, q, &u);
- if (r < 0)
- return r;
-
- if (le64toh(u->data.hash) != h) {
- log_error("Hash mismatch for data object at entry %llu",
- (unsigned long long) p);
- return -EBADMSG;
- }
-
- r = data_object_in_hash_table(f, h, q);
- if (r < 0)
- return r;
- if (r == 0) {
- log_error("Data object missing from hash at entry %llu",
- (unsigned long long) p);
- return -EBADMSG;
- }
- }
-
- return 0;
-}
-
-static int verify_entry_array(
- JournalFile *f,
- int data_fd, uint64_t n_data,
- int entry_fd, uint64_t n_entries,
- int entry_array_fd, uint64_t n_entry_arrays,
- usec_t *last_usec,
- bool show_progress) {
-
- uint64_t i = 0, a, n, last = 0;
- int r;
-
- assert(f);
- assert(data_fd >= 0);
- assert(entry_fd >= 0);
- assert(entry_array_fd >= 0);
- assert(last_usec);
-
- n = le64toh(f->header->n_entries);
- a = le64toh(f->header->entry_array_offset);
- while (i < n) {
- uint64_t next, m, j;
- Object *o;
-
- if (show_progress)
- draw_progress(0x8000 + (0x3FFF * i / n), last_usec);
-
- if (a == 0) {
- log_error("Array chain too short at %llu of %llu",
- (unsigned long long) i, (unsigned long long) n);
- return -EBADMSG;
- }
-
- if (!contains_uint64(f->mmap, entry_array_fd, n_entry_arrays, a)) {
- log_error("Invalid array at %llu of %llu",
- (unsigned long long) i, (unsigned long long) n);
- return -EBADMSG;
- }
-
- r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
- if (r < 0)
- return r;
-
- next = le64toh(o->entry_array.next_entry_array_offset);
- if (next != 0 && next <= a) {
- log_error("Array chain has cycle at %llu of %llu",
- (unsigned long long) i, (unsigned long long) n);
- return -EBADMSG;
- }
-
- m = journal_file_entry_array_n_items(o);
- for (j = 0; i < n && j < m; i++, j++) {
- uint64_t p;
-
- p = le64toh(o->entry_array.items[j]);
- if (p <= last) {
- log_error("Entry array not sorted at %llu of %llu",
- (unsigned long long) i, (unsigned long long) n);
- return -EBADMSG;
- }
- last = p;
-
- if (!contains_uint64(f->mmap, entry_fd, n_entries, p)) {
- log_error("Invalid array entry at %llu of %llu",
- (unsigned long long) i, (unsigned long long) n);
- return -EBADMSG;
- }
-
- r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o);
- if (r < 0)
- return r;
-
- r = verify_entry(f, o, p, data_fd, n_data);
- if (r < 0)
- return r;
-
- /* Pointer might have moved, reposition */
- r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
- if (r < 0)
- return r;
- }
-
- a = next;
- }
-
- return 0;
-}
-
-int journal_file_verify(
- JournalFile *f,
- const char *key,
- usec_t *first_contained, usec_t *last_validated, usec_t *last_contained,
- bool show_progress) {
- int r;
- Object *o;
- uint64_t p = 0, last_epoch = 0, last_tag_realtime = 0, last_sealed_realtime = 0;
-
- uint64_t entry_seqnum = 0, entry_monotonic = 0, entry_realtime = 0;
- sd_id128_t entry_boot_id;
- bool entry_seqnum_set = false, entry_monotonic_set = false, entry_realtime_set = false, found_main_entry_array = false;
- uint64_t n_weird = 0, n_objects = 0, n_entries = 0, n_data = 0, n_fields = 0, n_data_hash_tables = 0, n_field_hash_tables = 0, n_entry_arrays = 0, n_tags = 0;
- usec_t last_usec = 0;
- int data_fd = -1, entry_fd = -1, entry_array_fd = -1;
- char data_path[] = "/var/tmp/journal-data-XXXXXX",
- entry_path[] = "/var/tmp/journal-entry-XXXXXX",
- entry_array_path[] = "/var/tmp/journal-entry-array-XXXXXX";
- unsigned i;
- bool found_last;
-#ifdef HAVE_GCRYPT
- uint64_t last_tag = 0;
-#endif
- assert(f);
-
- if (key) {
-#ifdef HAVE_GCRYPT
- r = journal_file_parse_verification_key(f, key);
- if (r < 0) {
- log_error("Failed to parse seed.");
- return r;
- }
-#else
- return -ENOTSUP;
-#endif
- } else if (f->seal)
- return -ENOKEY;
-
- data_fd = mkostemp(data_path, O_CLOEXEC);
- if (data_fd < 0) {
- log_error("Failed to create data file: %m");
- r = -errno;
- goto fail;
- }
- unlink(data_path);
-
- entry_fd = mkostemp(entry_path, O_CLOEXEC);
- if (entry_fd < 0) {
- log_error("Failed to create entry file: %m");
- r = -errno;
- goto fail;
- }
- unlink(entry_path);
-
- entry_array_fd = mkostemp(entry_array_path, O_CLOEXEC);
- if (entry_array_fd < 0) {
- log_error("Failed to create entry array file: %m");
- r = -errno;
- goto fail;
- }
- unlink(entry_array_path);
-
-#ifdef HAVE_GCRYPT
- if ((le32toh(f->header->compatible_flags) & ~HEADER_COMPATIBLE_SEALED) != 0)
-#else
- if (f->header->compatible_flags != 0)
-#endif
- {
- log_error("Cannot verify file with unknown extensions.");
- r = -ENOTSUP;
- goto fail;
- }
-
- for (i = 0; i < sizeof(f->header->reserved); i++)
- if (f->header->reserved[i] != 0) {
- log_error("Reserved field in non-zero.");
- r = -EBADMSG;
- goto fail;
- }
-
- /* First iteration: we go through all objects, verify the
- * superficial structure, headers, hashes. */
-
- p = le64toh(f->header->header_size);
- while (p != 0) {
- if (show_progress)
- draw_progress(0x7FFF * p / le64toh(f->header->tail_object_offset), &last_usec);
-
- r = journal_file_move_to_object(f, -1, p, &o);
- if (r < 0) {
- log_error("Invalid object at %llu", (unsigned long long) p);
- goto fail;
- }
-
- if (p > le64toh(f->header->tail_object_offset)) {
- log_error("Invalid tail object pointer");
- r = -EBADMSG;
- goto fail;
- }
-
- if (p == le64toh(f->header->tail_object_offset))
- found_last = true;
-
- n_objects ++;
-
- r = journal_file_object_verify(f, o);
- if (r < 0) {
- log_error("Invalid object contents at %llu", (unsigned long long) p);
- goto fail;
- }
-
- if ((o->object.flags & OBJECT_COMPRESSED) && !JOURNAL_HEADER_COMPRESSED(f->header)) {
- log_error("Compressed object in file without compression at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- switch (o->object.type) {
-
- case OBJECT_DATA:
- r = write_uint64(data_fd, p);
- if (r < 0)
- goto fail;
-
- n_data++;
- break;
-
- case OBJECT_FIELD:
- n_fields++;
- break;
-
- case OBJECT_ENTRY:
- if (JOURNAL_HEADER_SEALED(f->header) && n_tags <= 0) {
- log_error("First entry before first tag at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- r = write_uint64(entry_fd, p);
- if (r < 0)
- goto fail;
-
- if (le64toh(o->entry.realtime) < last_tag_realtime) {
- log_error("Older entry after newer tag at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- if (!entry_seqnum_set &&
- le64toh(o->entry.seqnum) != le64toh(f->header->head_entry_seqnum)) {
- log_error("Head entry sequence number incorrect at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- if (entry_seqnum_set &&
- entry_seqnum >= le64toh(o->entry.seqnum)) {
- log_error("Entry sequence number out of synchronization at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- entry_seqnum = le64toh(o->entry.seqnum);
- entry_seqnum_set = true;
-
- if (entry_monotonic_set &&
- sd_id128_equal(entry_boot_id, o->entry.boot_id) &&
- entry_monotonic > le64toh(o->entry.monotonic)) {
- log_error("Entry timestamp out of synchronization at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- entry_monotonic = le64toh(o->entry.monotonic);
- entry_boot_id = o->entry.boot_id;
- entry_monotonic_set = true;
-
- if (!entry_realtime_set &&
- le64toh(o->entry.realtime) != le64toh(f->header->head_entry_realtime)) {
- log_error("Head entry realtime timestamp incorrect");
- r = -EBADMSG;
- goto fail;
- }
-
- entry_realtime = le64toh(o->entry.realtime);
- entry_realtime_set = true;
-
- n_entries ++;
- break;
-
- case OBJECT_DATA_HASH_TABLE:
- if (n_data_hash_tables > 1) {
- log_error("More than one data hash table at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- if (le64toh(f->header->data_hash_table_offset) != p + offsetof(HashTableObject, items) ||
- le64toh(f->header->data_hash_table_size) != le64toh(o->object.size) - offsetof(HashTableObject, items)) {
- log_error("Header fields for data hash table invalid");
- r = -EBADMSG;
- goto fail;
- }
-
- n_data_hash_tables++;
- break;
-
- case OBJECT_FIELD_HASH_TABLE:
- if (n_field_hash_tables > 1) {
- log_error("More than one field hash table at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- if (le64toh(f->header->field_hash_table_offset) != p + offsetof(HashTableObject, items) ||
- le64toh(f->header->field_hash_table_size) != le64toh(o->object.size) - offsetof(HashTableObject, items)) {
- log_error("Header fields for field hash table invalid");
- r = -EBADMSG;
- goto fail;
- }
-
- n_field_hash_tables++;
- break;
-
- case OBJECT_ENTRY_ARRAY:
- r = write_uint64(entry_array_fd, p);
- if (r < 0)
- goto fail;
-
- if (p == le64toh(f->header->entry_array_offset)) {
- if (found_main_entry_array) {
- log_error("More than one main entry array at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- found_main_entry_array = true;
- }
-
- n_entry_arrays++;
- break;
-
- case OBJECT_TAG:
- if (!JOURNAL_HEADER_SEALED(f->header)) {
- log_error("Tag object in file without sealing at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- if (le64toh(o->tag.seqnum) != n_tags + 1) {
- log_error("Tag sequence number out of synchronization at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- if (le64toh(o->tag.epoch) < last_epoch) {
- log_error("Epoch sequence out of synchronization at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
-#ifdef HAVE_GCRYPT
- if (f->seal) {
- uint64_t q, rt;
-
- log_debug("Checking tag %llu..", (unsigned long long) le64toh(o->tag.seqnum));
-
- rt = f->fss_start_usec + o->tag.epoch * f->fss_interval_usec;
- if (entry_realtime_set && entry_realtime >= rt + f->fss_interval_usec) {
- log_error("Tag/entry realtime timestamp out of synchronization at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- /* OK, now we know the epoch. So let's now set
- * it, and calculate the HMAC for everything
- * since the last tag. */
- r = journal_file_fsprg_seek(f, le64toh(o->tag.epoch));
- if (r < 0)
- goto fail;
-
- r = journal_file_hmac_start(f);
- if (r < 0)
- goto fail;
-
- if (last_tag == 0) {
- r = journal_file_hmac_put_header(f);
- if (r < 0)
- goto fail;
-
- q = le64toh(f->header->header_size);
- } else
- q = last_tag;
-
- while (q <= p) {
- r = journal_file_move_to_object(f, -1, q, &o);
- if (r < 0)
- goto fail;
-
- r = journal_file_hmac_put_object(f, -1, o, q);
- if (r < 0)
- goto fail;
-
- q = q + ALIGN64(le64toh(o->object.size));
- }
-
- /* Position might have changed, let's reposition things */
- r = journal_file_move_to_object(f, -1, p, &o);
- if (r < 0)
- goto fail;
-
- if (memcmp(o->tag.tag, gcry_md_read(f->hmac, 0), TAG_LENGTH) != 0) {
- log_error("Tag failed verification at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
-
- f->hmac_running = false;
- last_tag_realtime = rt;
- last_sealed_realtime = entry_realtime;
- }
-
- last_tag = p + ALIGN64(le64toh(o->object.size));
-#endif
-
- last_epoch = le64toh(o->tag.epoch);
-
- n_tags ++;
- break;
-
- default:
- n_weird ++;
- }
-
- if (p == le64toh(f->header->tail_object_offset))
- p = 0;
- else
- p = p + ALIGN64(le64toh(o->object.size));
- }
-
- if (!found_last) {
- log_error("Tail object pointer dead");
- r = -EBADMSG;
- goto fail;
- }
-
- if (n_objects != le64toh(f->header->n_objects)) {
- log_error("Object number mismatch");
- r = -EBADMSG;
- goto fail;
- }
-
- if (n_entries != le64toh(f->header->n_entries)) {
- log_error("Entry number mismatch");
- r = -EBADMSG;
- goto fail;
- }
-
- if (JOURNAL_HEADER_CONTAINS(f->header, n_data) &&
- n_data != le64toh(f->header->n_data)) {
- log_error("Data number mismatch");
- r = -EBADMSG;
- goto fail;
- }
-
- if (JOURNAL_HEADER_CONTAINS(f->header, n_fields) &&
- n_fields != le64toh(f->header->n_fields)) {
- log_error("Field number mismatch");
- r = -EBADMSG;
- goto fail;
- }
-
- if (JOURNAL_HEADER_CONTAINS(f->header, n_tags) &&
- n_tags != le64toh(f->header->n_tags)) {
- log_error("Tag number mismatch");
- r = -EBADMSG;
- goto fail;
- }
-
- if (JOURNAL_HEADER_CONTAINS(f->header, n_entry_arrays) &&
- n_entry_arrays != le64toh(f->header->n_entry_arrays)) {
- log_error("Entry array number mismatch");
- r = -EBADMSG;
- goto fail;
- }
-
- if (n_data_hash_tables != 1) {
- log_error("Missing data hash table");
- r = -EBADMSG;
- goto fail;
- }
-
- if (n_field_hash_tables != 1) {
- log_error("Missing field hash table");
- r = -EBADMSG;
- goto fail;
- }
-
- if (!found_main_entry_array) {
- log_error("Missing entry array");
- r = -EBADMSG;
- goto fail;
- }
-
- if (entry_seqnum_set &&
- entry_seqnum != le64toh(f->header->tail_entry_seqnum)) {
- log_error("Invalid tail seqnum");
- r = -EBADMSG;
- goto fail;
- }
-
- if (entry_monotonic_set &&
- (!sd_id128_equal(entry_boot_id, f->header->boot_id) ||
- entry_monotonic != le64toh(f->header->tail_entry_monotonic))) {
- log_error("Invalid tail monotonic timestamp");
- r = -EBADMSG;
- goto fail;
- }
-
- if (entry_realtime_set && entry_realtime != le64toh(f->header->tail_entry_realtime)) {
- log_error("Invalid tail realtime timestamp");
- r = -EBADMSG;
- goto fail;
- }
-
- /* Second iteration: we follow all objects referenced from the
- * two entry points: the object hash table and the entry
- * array. We also check that everything referenced (directly
- * or indirectly) in the data hash table also exists in the
- * entry array, and vice versa. Note that we do not care for
- * unreferenced objects. We only care that everything that is
- * referenced is consistent. */
-
- r = verify_entry_array(f,
- data_fd, n_data,
- entry_fd, n_entries,
- entry_array_fd, n_entry_arrays,
- &last_usec,
- show_progress);
- if (r < 0)
- goto fail;
-
- r = verify_hash_table(f,
- data_fd, n_data,
- entry_fd, n_entries,
- entry_array_fd, n_entry_arrays,
- &last_usec,
- show_progress);
- if (r < 0)
- goto fail;
-
- if (show_progress)
- flush_progress();
-
- mmap_cache_close_fd(f->mmap, data_fd);
- mmap_cache_close_fd(f->mmap, entry_fd);
- mmap_cache_close_fd(f->mmap, entry_array_fd);
-
- close_nointr_nofail(data_fd);
- close_nointr_nofail(entry_fd);
- close_nointr_nofail(entry_array_fd);
-
- if (first_contained)
- *first_contained = le64toh(f->header->head_entry_realtime);
- if (last_validated)
- *last_validated = last_sealed_realtime;
- if (last_contained)
- *last_contained = le64toh(f->header->tail_entry_realtime);
-
- return 0;
-
-fail:
- if (show_progress)
- flush_progress();
-
- log_error("File corruption detected at %s:%llu (of %llu, %llu%%).",
- f->path,
- (unsigned long long) p,
- (unsigned long long) f->last_stat.st_size,
- (unsigned long long) (100 * p / f->last_stat.st_size));
-
- if (data_fd >= 0) {
- mmap_cache_close_fd(f->mmap, data_fd);
- close_nointr_nofail(data_fd);
- }
-
- if (entry_fd >= 0) {
- mmap_cache_close_fd(f->mmap, entry_fd);
- close_nointr_nofail(entry_fd);
- }
-
- if (entry_array_fd >= 0) {
- mmap_cache_close_fd(f->mmap, entry_array_fd);
- close_nointr_nofail(entry_array_fd);
- }
-
- return r;
-}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-23 07:31:54 +0000