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authorAndrew Tridgell <tridge@samba.org>2009-12-16 13:36:17 +1100
committerAndrew Tridgell <tridge@samba.org>2009-12-16 20:56:22 +1100
commit3c1f18c5e2c3f56d512aa9a8cfab2f5698bafbb0 (patch)
tree3878e189f1c02032bbb619bf524f0b06a57b88bd /source4/dsdb
parent7d0fdcae1e68f24a642e1b0fb0069ec54502fbb9 (diff)
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s4-dsdb: added dsdb_find_nc_root()
This is based on the function of the same name from Eduardo Lima <eduardoll@gmail.com>, but using ldb_dn_compare, to give us comparisons consistent with what the rest of the code uses. We will use this function in combination with dsdb_wellknown_dn() to find the Deleted Objects container for any object. Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
Diffstat (limited to 'source4/dsdb')
-rw-r--r--source4/dsdb/common/util.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/source4/dsdb/common/util.c b/source4/dsdb/common/util.c
index 1162196843..ffc11b02f7 100644
--- a/source4/dsdb/common/util.c
+++ b/source4/dsdb/common/util.c
@@ -2782,3 +2782,67 @@ int dsdb_wellknown_dn(struct ldb_context *samdb, TALLOC_CTX *mem_ctx,
talloc_free(tmp_ctx);
return LDB_SUCCESS;
}
+
+
+/*
+ find a NC root given a DN within the NC
+ */
+int dsdb_find_nc_root(struct ldb_context *samdb, TALLOC_CTX *mem_ctx, struct ldb_dn *dn,
+ struct ldb_dn **nc_root)
+{
+ const char *root_attrs[] = { "namingContexts", NULL };
+ TALLOC_CTX *tmp_ctx;
+ int ret;
+ struct ldb_message_element *el;
+ struct ldb_result *root_res;
+ int i;
+ struct ldb_dn **nc_dns;
+
+ tmp_ctx = talloc_new(samdb);
+ if (tmp_ctx == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = ldb_search(samdb, tmp_ctx, &root_res,
+ ldb_dn_new(tmp_ctx, samdb, ""), LDB_SCOPE_BASE, root_attrs, NULL);
+ if (ret) {
+ DEBUG(1,("Searching for namingContexts in rootDSE failed: %s\n", ldb_errstring(samdb)));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ el = ldb_msg_find_element(root_res->msgs[0], "namingContexts");
+ if (!el) {
+ DEBUG(1,("Finding namingContexts element in root_res failed: %s\n",
+ ldb_errstring(samdb)));
+ talloc_free(tmp_ctx);
+ return LDB_ERR_NO_SUCH_ATTRIBUTE;
+ }
+
+ nc_dns = talloc_array(tmp_ctx, struct ldb_dn *, el->num_values);
+ if (!nc_dns) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ for (i=0; i<el->num_values; i++) {
+ nc_dns[i] = ldb_dn_from_ldb_val(nc_dns, samdb, &el->values[i]);
+ if (nc_dns[i] == NULL) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ }
+
+ qsort(nc_dns, el->num_values, sizeof(nc_dns[0]), (comparison_fn_t)ldb_dn_compare);
+
+ for (i=0; i<el->num_values; i++) {
+ if (ldb_dn_compare_base(nc_dns[i], dn) == 0) {
+ (*nc_root) = talloc_steal(mem_ctx, nc_dns[i]);
+ talloc_free(tmp_ctx);
+ return LDB_SUCCESS;
+ }
+ }
+
+ talloc_free(tmp_ctx);
+ return LDB_ERR_NO_SUCH_OBJECT;
+}