X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftdb%2Fcheck.c;h=4fbbb92c5a4ae62902d14b7ccffa697df0ccbde8;hp=53fb286613a3e829e8f2aa159109124c3e182503;hb=97648992fdd50535fe276261368c179df993202b;hpb=a1ace0cd114e0c588d6ce1b9e7386af11716e0bd

diff --git a/ccan/tdb/check.c b/ccan/tdb/check.c
index 53fb2866..4fbbb92c 100644
--- a/ccan/tdb/check.c
+++ b/ccan/tdb/check.c
@@ -29,6 +29,7 @@
 static bool tdb_check_header(struct tdb_context *tdb, tdb_off_t *recovery)
 {
 	struct tdb_header hdr;
+	uint32_t h1, h2;
 
 	if (tdb->methods->tdb_read(tdb, 0, &hdr, sizeof(hdr), 0) == -1)
 		return false;
@@ -39,7 +40,12 @@ static bool tdb_check_header(struct tdb_context *tdb, tdb_off_t *recovery)
 	if (hdr.version != TDB_VERSION)
 		goto corrupt;
 
-	if (hdr.hashcheck != hashcheck(tdb))
+	if (hdr.rwlocks != 0 && hdr.rwlocks != TDB_HASH_RWLOCK_MAGIC)
+		goto corrupt;
+
+	tdb_header_hash(tdb, &h1, &h2);
+	if (hdr.magic1_hash && hdr.magic2_hash &&
+	    (hdr.magic1_hash != h1 || hdr.magic2_hash != h2))
 		goto corrupt;
 
 	if (hdr.hash_size == 0)
@@ -303,7 +309,7 @@ static bool tdb_check_free_record(struct tdb_context *tdb,
 }
 
 /* Slow, but should be very rare. */
-static size_t dead_space(struct tdb_context *tdb, tdb_off_t off)
+size_t tdb_dead_space(struct tdb_context *tdb, tdb_off_t off)
 {
 	size_t len;
 
@@ -401,7 +407,7 @@ int tdb_check(struct tdb_context *tdb,
 				found_recovery = true;
 				break;
 			}
-			dead = dead_space(tdb, off);
+			dead = tdb_dead_space(tdb, off);
 			if (dead < sizeof(rec))
 				goto corrupt;