s3-winbind: Implemented samr backend function common_sid_to_name.

diff --git a/source3/winbindd/winbindd_samr.c b/source3/winbindd/winbindd_samr.c
index a5cfede1a3e4bbc767b1a1d59f1e4b11a28b09ef..1f8d03cf7e50f3bafbc0940211e726ce91d4a0c8 100644 (file)
--- a/source3/winbindd/winbindd_samr.c
+++ b/source3/winbindd/winbindd_samr.c
@@ -936,8 +936,79 @@ static NTSTATUS common_sid_to_name(struct winbindd_domain *domain,
                                   char **name,
                                   enum lsa_SidType *type)
 {
-       /* TODO FIXME */
-       return NT_STATUS_NOT_IMPLEMENTED;
+       struct rpc_pipe_client *lsa_pipe;
+       struct policy_handle lsa_policy;
+       char *mapped_name = NULL;
+       char **domains = NULL;
+       char **names = NULL;
+       enum lsa_SidType *types = NULL;
+       TALLOC_CTX *tmp_ctx;
+       NTSTATUS map_status;
+       NTSTATUS status;
+
+       DEBUG(3,("samr: sid to name\n"));
+
+       tmp_ctx = talloc_stackframe();
+       if (tmp_ctx == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       status = open_internal_lsa_conn(tmp_ctx, &lsa_pipe, &lsa_policy);
+       if (!NT_STATUS_IS_OK(status)) {
+               goto error;
+       }
+
+       /*
+        * We don't run into deadlocks here, cause winbind_off() is called in
+        * the main function.
+        */
+       status = rpccli_lsa_lookup_sids(lsa_pipe,
+                                       tmp_ctx,
+                                       &lsa_policy,
+                                       1, /* num_sids */
+                                       sid,
+                                       &domains,
+                                       &names,
+                                       &types);
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(2,("sid_to_name: failed to lookup sids: %s\n",
+                       nt_errstr(status)));
+               goto error;
+       }
+
+       if (type) {
+               *type = (enum lsa_SidType) types[0];
+       }
+
+       if (name) {
+               map_status = normalize_name_map(tmp_ctx,
+                                               domain,
+                                               *name,
+                                               &mapped_name);
+               if (NT_STATUS_IS_OK(map_status) ||
+                   NT_STATUS_EQUAL(map_status, NT_STATUS_FILE_RENAMED)) {
+                       *name = talloc_strdup(mem_ctx, mapped_name);
+                       DEBUG(5,("returning mapped name -- %s\n", *name));
+               } else {
+                       *name = talloc_strdup(mem_ctx, names[0]);
+               }
+               if (*name == NULL) {
+                       status = NT_STATUS_NO_MEMORY;
+                       goto error;
+               }
+       }
+
+       if (domain_name) {
+               *domain_name = talloc_strdup(mem_ctx, domains[0]);
+               if (*domain_name == NULL) {
+                       status = NT_STATUS_NO_MEMORY;
+                       goto error;
+               }
+       }
+
+error:
+       TALLOC_FREE(tmp_ctx);
+       return status;
 }
 
 static NTSTATUS common_rids_to_names(struct winbindd_domain *domain,