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authorAndrew Tridgell <tridge@samba.org>2011-08-02 17:15:28 +1000
committerAndrew Tridgell <tridge@samba.org>2011-08-04 16:17:25 +1000
commite07ca09a7bac30b99b0033a59746ba166e429aec (patch)
tree846bd9eb037f00d0273926aa42862b1c2bf55165 /lib
parent7b5f0a7120c91989976d2f946ad1af9d6dc934c7 (diff)
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ldb: changed DN matching rules to obey GUID/SID/string ordering
when matching two DNs, the GUID takes priority, then the SID, then the string component Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org> Pair-Programmed-With: Amitay Isaacs <amitay@gmail.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/ldb-samba/ldif_handlers.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/lib/ldb-samba/ldif_handlers.c b/lib/ldb-samba/ldif_handlers.c
index ca6fa74b00..a89749750f 100644
--- a/lib/ldb-samba/ldif_handlers.c
+++ b/lib/ldb-samba/ldif_handlers.c
@@ -1119,6 +1119,52 @@ static int samba_syntax_operator_fn(struct ldb_context *ldb, enum ldb_parse_op o
}
/*
+ see if two DNs match, comparing first by GUID, then by SID, and
+ finally by string components
+ */
+static int samba_dn_extended_match(struct ldb_context *ldb,
+ const struct ldb_val *v1,
+ const struct ldb_val *v2,
+ bool *matched)
+{
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_dn *dn1, *dn2;
+ const struct ldb_val *guid1, *guid2, *sid1, *sid2;
+
+ tmp_ctx = talloc_new(ldb);
+
+ dn1 = ldb_dn_from_ldb_val(tmp_ctx, ldb, v1);
+ dn2 = ldb_dn_from_ldb_val(tmp_ctx, ldb, v2);
+ if (!dn1 || !dn2) {
+ /* couldn't parse as DN's */
+ talloc_free(tmp_ctx);
+ (*matched) = false;
+ return LDB_SUCCESS;
+ }
+
+ guid1 = ldb_dn_get_extended_component(dn1, "GUID");
+ guid2 = ldb_dn_get_extended_component(dn2, "GUID");
+ if (guid1 && guid2) {
+ (*matched) = (data_blob_cmp(guid1, guid2) == 0);
+ talloc_free(tmp_ctx);
+ return LDB_SUCCESS;
+ }
+
+ sid1 = ldb_dn_get_extended_component(dn1, "SID");
+ sid2 = ldb_dn_get_extended_component(dn2, "SID");
+ if (sid1 && sid2) {
+ (*matched) = (data_blob_cmp(sid1, sid2) == 0);
+ talloc_free(tmp_ctx);
+ return LDB_SUCCESS;
+ }
+
+ (*matched) = (ldb_dn_compare(dn1, dn2) == 0);
+
+ talloc_free(tmp_ctx);
+ return LDB_SUCCESS;
+}
+
+/*
special operation for DNs, to take account of the RMD_FLAGS deleted bit
*/
static int samba_syntax_operator_dn(struct ldb_context *ldb, enum ldb_parse_op operation,
@@ -1127,9 +1173,17 @@ static int samba_syntax_operator_dn(struct ldb_context *ldb, enum ldb_parse_op o
{
if (operation == LDB_OP_PRESENT && dsdb_dn_is_deleted_val(v1)) {
/* If the DN is deleted, then we can't search for it */
+
+ /* should this be for equality too? */
*matched = false;
return LDB_SUCCESS;
}
+
+ if (operation == LDB_OP_EQUALITY &&
+ samba_dn_extended_match(ldb, v1, v2, matched) == LDB_SUCCESS) {
+ return LDB_SUCCESS;
+ }
+
return samba_syntax_operator_fn(ldb, operation, a, v1, v2, matched);
}