#include "journal-verify.h"
#include "lookup3.h"
#include "compress.h"
+#include "fsprg.h"
/* FIXME:
*
return 0;
}
-int journal_file_verify(JournalFile *f, const char *key) {
+static int journal_file_parse_seed(JournalFile *f, const char *s) {
+ uint8_t *seed;
+ size_t seed_size, c;
+ const char *k;
+ int r;
+ unsigned long long start, interval;
+
+ seed_size = FSPRG_RECOMMENDED_SEEDLEN;
+ seed = malloc(seed_size);
+ if (!seed)
+ return -ENOMEM;
+
+ k = s;
+ for (c = 0; c < seed_size; c++) {
+ int x, y;
+
+ while (*k == '-')
+ k++;
+
+ x = unhexchar(*k);
+ if (x < 0) {
+ free(seed);
+ return -EINVAL;
+ }
+ k++;
+ y = unhexchar(*k);
+ if (y < 0) {
+ free(seed);
+ return -EINVAL;
+ }
+ k++;
+
+ seed[c] = (uint8_t) (x * 16 + y);
+ }
+
+ if (*k != '/') {
+ free(seed);
+ return -EINVAL;
+ }
+ k++;
+
+ r = sscanf(k, "%llx-%llx", &start, &interval);
+ if (r != 2) {
+ free(seed);
+ return -EINVAL;
+ }
+
+ f->fsprg_seed = seed;
+ f->fsprg_seed_size = seed_size;
+ f->fsprg_start_usec = start;
+ f->fsprg_interval_usec = interval;
+
+ return 0;
+}
+
+int journal_file_verify(JournalFile *f, const char *seed) {
int r;
Object *o;
- uint64_t p = 0;
- uint64_t tag_seqnum = 0, entry_seqnum = 0, entry_monotonic = 0, entry_realtime = 0;
+ uint64_t p = 0, last_tag = 0;
+ uint64_t n_tags = 0, 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;
assert(f);
+ if (seed) {
+ r = journal_file_parse_seed(f, seed);
+ if (r < 0) {
+ log_error("Failed to parse seed.");
+ return r;
+ }
+ }
+
data_fd = mkostemp(data_path, O_CLOEXEC);
if (data_fd < 0) {
log_error("Failed to create data file: %m");
/* First iteration: we go through all objects, verify the
* superficial structure, headers, hashes. */
- r = journal_file_hmac_put_header(f);
- if (r < 0) {
- log_error("Failed to calculate HMAC of header.");
- goto fail;
- }
-
p = le64toh(f->header->header_size);
while (p != 0) {
draw_progress(0x7FFF * p / le64toh(f->header->tail_object_offset), &last_usec);
goto fail;
}
- r = journal_file_hmac_put_object(f, -1, p);
- if (r < 0) {
- log_error("Failed to calculate HMAC at %llu", (unsigned long long) p);
- goto fail;
- }
+ switch (o->object.type) {
- if (o->object.type == OBJECT_TAG) {
-
- if (!(le32toh(f->header->compatible_flags) & HEADER_COMPATIBLE_AUTHENTICATED)) {
- log_error("Tag object without authentication at %llu", (unsigned long long) p);
- r = -EBADMSG;
+ case OBJECT_DATA:
+ r = write_uint64(data_fd, p);
+ if (r < 0)
goto fail;
- }
- if (le64toh(o->tag.seqnum) != tag_seqnum) {
- log_error("Tag sequence number out of synchronization at %llu", (unsigned long long) p);
- r = -EBADMSG;
- goto fail;
- }
+ n_data++;
+ break;
- } else if (o->object.type == OBJECT_ENTRY) {
+ case OBJECT_FIELD:
+ n_fields++;
+ break;
+ case OBJECT_ENTRY:
r = write_uint64(entry_fd, p);
if (r < 0)
goto fail;
entry_realtime_set = true;
n_entries ++;
- } else if (o->object.type == 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++;
-
- } else if (o->object.type == OBJECT_DATA) {
-
- r = write_uint64(data_fd, p);
- if (r < 0)
- goto fail;
-
- n_data++;
-
- } else if (o->object.type == OBJECT_FIELD)
- n_fields++;
- else if (o->object.type == OBJECT_DATA_HASH_TABLE) {
- n_data_hash_tables++;
+ 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;
r = -EBADMSG;
goto fail;
}
- } else if (o->object.type == OBJECT_FIELD_HASH_TABLE) {
- n_field_hash_tables++;
+ 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;
r = -EBADMSG;
goto fail;
}
- } else if (o->object.type >= _OBJECT_TYPE_MAX)
+
+ 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 (!(le32toh(f->header->compatible_flags) & HEADER_COMPATIBLE_AUTHENTICATED)) {
+ log_error("Tag object without authentication 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;
+ }
+
+ n_tags ++;
+ break;
+
+ default:
n_weird ++;
+ }
if (p == le64toh(f->header->tail_object_offset))
p = 0;
}
if (JOURNAL_HEADER_CONTAINS(f->header, n_tags) &&
- tag_seqnum != le64toh(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;
~ianmdlvl / elogind.git / blobdiff