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-rw-r--r--source4/dsdb/samdb/ldb_modules/util.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/util.c b/source4/dsdb/samdb/ldb_modules/util.c
index 5d66177d8b..16d5ddecd6 100644
--- a/source4/dsdb/samdb/ldb_modules/util.c
+++ b/source4/dsdb/samdb/ldb_modules/util.c
@@ -492,3 +492,46 @@ int dsdb_check_single_valued_link(const struct dsdb_attribute *attr,
return LDB_SUCCESS;
}
+
+
+/*
+ find a 'reference' DN that points at another object
+ (eg. serverReference, rIDManagerReference etc)
+ */
+int dsdb_module_reference_dn(struct ldb_module *module, TALLOC_CTX *mem_ctx, struct ldb_dn *base,
+ const char *attribute, struct ldb_dn **dn)
+{
+ const char *attrs[2];
+ struct ldb_result *res;
+ int ret;
+
+ attrs[0] = attribute;
+ attrs[1] = NULL;
+
+ ret = dsdb_module_search_dn(module, mem_ctx, &res, base, attrs, 0);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ *dn = ldb_msg_find_attr_as_dn(ldb_module_get_ctx(module),
+ mem_ctx, res->msgs[0], attribute);
+ if (!*dn) {
+ talloc_free(res);
+ return LDB_ERR_NO_SUCH_ATTRIBUTE;
+ }
+
+ talloc_free(res);
+ return LDB_SUCCESS;
+}
+
+/*
+ find the RID Manager$ DN via the rIDManagerReference attribute in the
+ base DN
+ */
+int dsdb_module_rid_manager_dn(struct ldb_module *module, TALLOC_CTX *mem_ctx, struct ldb_dn **dn)
+{
+ return dsdb_module_reference_dn(module, mem_ctx,
+ samdb_base_dn(ldb_module_get_ctx(module)),
+ "rIDManagerReference", dn);
+}
+