int (*check)(TDB_DATA, TDB_DATA, void *),
void *private_data);
+static bool check_hash_chain(struct tdb_context *tdb,
+ tdb_off_t off,
+ uint64_t hash,
+ tdb_off_t used[],
+ size_t num_used,
+ size_t *num_found,
+ int (*check)(TDB_DATA, TDB_DATA, void *),
+ void *private_data)
+{
+ struct tdb_used_record rec;
+
+ if (tdb_read_convert(tdb, off, &rec, sizeof(rec)) == -1)
+ return false;
+
+ if (rec_magic(&rec) != TDB_CHAIN_MAGIC) {
+ tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_DEBUG_ERROR,
+ "tdb_check: Bad hash chain magic %llu",
+ (long long)rec_magic(&rec));
+ return false;
+ }
+
+ if (rec_data_length(&rec) != sizeof(struct tdb_chain)) {
+ tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_DEBUG_ERROR,
+ "tdb_check: Bad hash chain length %llu vs %zu",
+ (long long)rec_data_length(&rec),
+ sizeof(struct tdb_chain));
+ return false;
+ }
+ if (rec_key_length(&rec) != 0) {
+ tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_DEBUG_ERROR,
+ "tdb_check: Bad hash chain key length %llu",
+ (long long)rec_key_length(&rec));
+ return false;
+ }
+ if (rec_hash(&rec) != 0) {
+ tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_DEBUG_ERROR,
+ "tdb_check: Bad hash chain hash value %llu",
+ (long long)rec_hash(&rec));
+ return false;
+ }
+
+ off += sizeof(rec);
+ if (!check_hash_tree(tdb, off, 0, hash, 64,
+ used, num_used, num_found, check, private_data))
+ return false;
+
+ off = tdb_read_off(tdb, off + offsetof(struct tdb_chain, next));
+ if (off == TDB_OFF_ERR)
+ return false;
+ if (off == 0)
+ return true;
+ (*num_found)++;
+ return check_hash_chain(tdb, off, hash, used, num_used, num_found,
+ check, private_data);
+}
+
static bool check_hash_record(struct tdb_context *tdb,
tdb_off_t off,
uint64_t hprefix,
{
struct tdb_used_record rec;
+ if (hprefix_bits >= 64)
+ return check_hash_chain(tdb, off, hprefix, used, num_used,
+ num_found, check, private_data);
+
if (tdb_read_convert(tdb, off, &rec, sizeof(rec)) == -1)
return false;
+ if (rec_magic(&rec) != TDB_HTABLE_MAGIC) {
+ tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_DEBUG_ERROR,
+ "tdb_check: Bad hash table magic %llu",
+ (long long)rec_magic(&rec));
+ return false;
+ }
if (rec_data_length(&rec)
!= sizeof(tdb_off_t) << TDB_SUBLEVEL_HASH_BITS) {
tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_DEBUG_ERROR,
*p ^= 1;
(*num_found)++;
+ if (hprefix_bits == 64) {
+ /* Chained entries are unordered. */
+ if (is_subhash(group[b])) {
+ tdb_logerr(tdb, TDB_ERR_CORRUPT,
+ TDB_DEBUG_ERROR,
+ "tdb_check: Invalid chain"
+ " entry subhash");
+ goto fail;
+ }
+ h = hash_record(tdb, off);
+ if (h != hprefix) {
+ tdb_logerr(tdb, TDB_ERR_CORRUPT,
+ TDB_DEBUG_ERROR,
+ "check: bad hash chain"
+ " placement"
+ " 0x%llx vs 0x%llx",
+ (long long)h,
+ (long long)hprefix);
+ goto fail;
+ }
+ if (tdb_read_convert(tdb, off, &rec,
+ sizeof(rec)))
+ goto fail;
+ goto check;
+ }
+
if (is_subhash(group[b])) {
uint64_t subprefix;
subprefix = (hprefix
goto fail;
}
+ check:
if (check) {
TDB_DATA key, data;
key.dsize = rec_key_length(&rec);
static bool check_hash(struct tdb_context *tdb,
tdb_off_t used[],
- size_t num_used, size_t num_flists,
+ size_t num_used, size_t num_ftables,
int (*check)(TDB_DATA, TDB_DATA, void *),
void *private_data)
{
- /* Free lists also show up as used. */
- size_t num_found = num_flists;
+ /* Free tables also show up as used. */
+ size_t num_found = num_ftables;
if (!check_hash_tree(tdb, offsetof(struct tdb_header, hashtable),
TDB_TOPLEVEL_HASH_BITS-TDB_HASH_GROUP_BITS,
static bool check_free(struct tdb_context *tdb,
tdb_off_t off,
const struct tdb_free_record *frec,
- tdb_off_t prev, unsigned int flist, unsigned int bucket)
+ tdb_off_t prev, unsigned int ftable,
+ unsigned int bucket)
{
if (frec_magic(frec) != TDB_FREE_MAGIC) {
tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_DEBUG_ERROR,
(long long)off, (long long)frec->magic_and_prev);
return false;
}
- if (frec_flist(frec) != flist) {
+ if (frec_ftable(frec) != ftable) {
tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_DEBUG_ERROR,
- "tdb_check: offset %llu bad freelist %u",
- (long long)off, frec_flist(frec));
+ "tdb_check: offset %llu bad freetable %u",
+ (long long)off, frec_ftable(frec));
return false;
}
return true;
}
-static bool check_free_list(struct tdb_context *tdb,
- tdb_off_t flist_off,
- unsigned flist_num,
- tdb_off_t free[],
- size_t num_free,
- size_t *num_found)
+static bool check_free_table(struct tdb_context *tdb,
+ tdb_off_t ftable_off,
+ unsigned ftable_num,
+ tdb_off_t fr[],
+ size_t num_free,
+ size_t *num_found)
{
- struct tdb_freelist flist;
+ struct tdb_freetable ft;
tdb_off_t h;
unsigned int i;
- if (tdb_read_convert(tdb, flist_off, &flist, sizeof(flist)) == -1)
+ if (tdb_read_convert(tdb, ftable_off, &ft, sizeof(ft)) == -1)
return false;
- if (rec_magic(&flist.hdr) != TDB_MAGIC
- || rec_key_length(&flist.hdr) != 0
- || rec_data_length(&flist.hdr) != sizeof(flist) - sizeof(flist.hdr)
- || rec_hash(&flist.hdr) != 1) {
+ if (rec_magic(&ft.hdr) != TDB_FTABLE_MAGIC
+ || rec_key_length(&ft.hdr) != 0
+ || rec_data_length(&ft.hdr) != sizeof(ft) - sizeof(ft.hdr)
+ || rec_hash(&ft.hdr) != 0) {
tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_DEBUG_ERROR,
- "tdb_check: Invalid header on free list");
+ "tdb_check: Invalid header on free table");
return false;
}
tdb_off_t off, prev = 0, *p;
struct tdb_free_record f;
- h = bucket_off(flist_off, i);
+ h = bucket_off(ftable_off, i);
for (off = tdb_read_off(tdb, h); off; off = f.next) {
if (off == TDB_OFF_ERR)
return false;
if (tdb_read_convert(tdb, off, &f, sizeof(f)))
return false;
- if (!check_free(tdb, off, &f, prev, flist_num, i))
+ if (!check_free(tdb, off, &f, prev, ftable_num, i))
return false;
/* FIXME: Check hash bits */
- p = asearch(&off, free, num_free, off_cmp);
+ p = asearch(&off, fr, num_free, off_cmp);
if (!p) {
tdb_logerr(tdb, TDB_ERR_CORRUPT,
TDB_DEBUG_ERROR,
static bool check_linear(struct tdb_context *tdb,
tdb_off_t **used, size_t *num_used,
- tdb_off_t **free, size_t *num_free,
+ tdb_off_t **fr, size_t *num_free,
tdb_off_t recovery)
{
tdb_off_t off;
}
found_recovery = true;
len = sizeof(rec.r) + rec.r.max_len;
- } else if (frec_magic(&rec.f) == TDB_FREE_MAGIC
- || frec_magic(&rec.f) == TDB_COALESCING_MAGIC) {
+ } else if (frec_magic(&rec.f) == TDB_FREE_MAGIC) {
len = sizeof(rec.u) + frec_len(&rec.f);
if (off + len > tdb->map_size) {
tdb_logerr(tdb, TDB_ERR_CORRUPT,
(long long)len, (long long)off);
return false;
}
- /* This record is free! */
- if (frec_magic(&rec.f) == TDB_FREE_MAGIC
- && !append(free, num_free, off))
+ /* This record should be in free lists. */
+ if (frec_ftable(&rec.f) != TDB_FTABLE_NONE
+ && !append(fr, num_free, off))
return false;
- } else {
+ } else if (rec_magic(&rec.u) == TDB_USED_MAGIC
+ || rec_magic(&rec.u) == TDB_CHAIN_MAGIC
+ || rec_magic(&rec.u) == TDB_HTABLE_MAGIC
+ || rec_magic(&rec.u) == TDB_FTABLE_MAGIC) {
uint64_t klen, dlen, extra;
/* This record is used! */
- if (rec_magic(&rec.u) != TDB_MAGIC) {
- tdb_logerr(tdb, TDB_ERR_CORRUPT,
- TDB_DEBUG_ERROR,
- "tdb_check: Bad magic 0x%llx"
- " at offset %zu",
- (long long)rec_magic(&rec.u),
- (size_t)off);
- return false;
- }
-
if (!append(used, num_used, off))
return false;
(long long)len, (long long)off);
return false;
}
+ } else {
+ tdb_logerr(tdb, TDB_ERR_CORRUPT,
+ TDB_DEBUG_ERROR,
+ "tdb_check: Bad magic 0x%llx at offset %zu",
+ (long long)rec_magic(&rec.u), (size_t)off);
+ return false;
}
}
int (*check)(TDB_DATA key, TDB_DATA data, void *private_data),
void *private_data)
{
- tdb_off_t *free = NULL, *used = NULL, flist, recovery;
- size_t num_free = 0, num_used = 0, num_found = 0, num_flists = 0;
+ tdb_off_t *fr = NULL, *used = NULL, ft, recovery;
+ size_t num_free = 0, num_used = 0, num_found = 0, num_ftables = 0;
if (tdb_allrecord_lock(tdb, F_RDLCK, TDB_LOCK_WAIT, false) != 0)
return -1;
goto fail;
/* First we do a linear scan, checking all records. */
- if (!check_linear(tdb, &used, &num_used, &free, &num_free, recovery))
+ if (!check_linear(tdb, &used, &num_used, &fr, &num_free, recovery))
goto fail;
- for (flist = first_flist(tdb); flist; flist = next_flist(tdb, flist)) {
- if (flist == TDB_OFF_ERR)
+ for (ft = first_ftable(tdb); ft; ft = next_ftable(tdb, ft)) {
+ if (ft == TDB_OFF_ERR)
goto fail;
- if (!check_free_list(tdb, flist, num_flists, free, num_free,
- &num_found))
+ if (!check_free_table(tdb, ft, num_ftables, fr, num_free,
+ &num_found))
goto fail;
- num_flists++;
+ num_ftables++;
}
/* FIXME: Check key uniqueness? */
- if (!check_hash(tdb, used, num_used, num_flists, check, private_data))
+ if (!check_hash(tdb, used, num_used, num_ftables, check, private_data))
goto fail;
if (num_found != num_free) {
projects / ccan / blobdiff