r26648: Move detection of global catalog captability to a central function, so

[samba.git] / source4 / dsdb / common / util.c

diff --git a/source4/dsdb/common/util.c b/source4/dsdb/common/util.c
index 345f13fcbcce94912d6b9015e25e6a7349af682d..17a20199d51473b2dc8e5a1c1a2f5f819a44d909 100644 (file)
--- a/source4/dsdb/common/util.c
+++ b/source4/dsdb/common/util.c
@@ -1367,6 +1367,42 @@ failed:
        return false;
 }
 
+/*
+  work out if we are a Global Catalog server for the domain of the current open ldb
+*/
+bool samdb_is_gc(struct ldb_context *ldb)
+{
+       const char *attrs[] = { "options", NULL };
+       int ret, options;
+       struct ldb_result *res;
+       TALLOC_CTX *tmp_ctx;
+
+       tmp_ctx = talloc_new(ldb);
+       if (tmp_ctx == NULL) {
+               DEBUG(1, ("talloc_new failed in samdb_is_pdc"));
+               return false;
+       }
+
+       /* Query cn=ntds settings,.... */
+       ret = ldb_search(ldb, samdb_ntds_settings_dn(ldb), LDB_SCOPE_BASE, NULL, attrs, &res);
+       if (ret) {
+               return false;
+       }
+       if (res->count != 1) {
+               talloc_free(res);
+               return false;
+       }
+
+       options = ldb_msg_find_attr_as_int(res->msgs[0], "options", 0);
+       talloc_free(res);
+       talloc_free(ldb);
+
+       /* if options attribute has the 0x00000001 flag set, then enable the global catlog */
+       if (options & 0x000000001) {
+               return true;
+       }
+       return false;
+}
 
 /* Find a domain object in the parents of a particular DN.  */
 int samdb_search_for_parent_domain(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, struct ldb_dn *dn,