s3-winbind: Implemented samr backend function common_sequence_number.

diff --git a/source3/winbindd/winbindd_samr.c b/source3/winbindd/winbindd_samr.c
index b611602e8b058240c35d1c64b005a926a2fc5d05..3815e1327150333e9786fb54aa94947707c30e64 100644 (file)
--- a/source3/winbindd/winbindd_samr.c
+++ b/source3/winbindd/winbindd_samr.c
@@ -1402,11 +1402,73 @@ error:
 static NTSTATUS common_sequence_number(struct winbindd_domain *domain,
                                       uint32_t *seq)
 {
-       /* TODO FIXME */
-       return NT_STATUS_NOT_IMPLEMENTED;
+       struct rpc_pipe_client *samr_pipe;
+       struct policy_handle dom_pol;
+       union samr_DomainInfo *info = NULL;
+       bool got_seq_num = false;
+       TALLOC_CTX *mem_ctx;
+       NTSTATUS status;
+
+       DEBUG(3,("samr: sequence number\n"));
+
+       mem_ctx = talloc_init("common_sequence_number");
+       if (mem_ctx == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       if (seq) {
+               *seq = DOM_SEQUENCE_NONE;
+       }
+
+       status = open_internal_samr_conn(mem_ctx, domain, &samr_pipe, &dom_pol);
+       if (!NT_STATUS_IS_OK(status)) {
+               goto error;
+       }
+
+       /* query domain info */
+       status = rpccli_samr_QueryDomainInfo(samr_pipe,
+                                            mem_ctx,
+                                            &dom_pol,
+                                            8,
+                                            &info);
+       if (NT_STATUS_IS_OK(status)) {
+               if (seq) {
+                       *seq = info->info8.sequence_num;
+                       got_seq_num = true;
+               }
+               goto seq_num;
+       }
+
+       /* retry with info-level 2 in case the dc does not support info-level 8
+        * (like all older samba2 and samba3 dc's) - Guenther */
+       status = rpccli_samr_QueryDomainInfo(samr_pipe,
+                                            mem_ctx,
+                                            &dom_pol,
+                                            2,
+                                            &info);
+       if (NT_STATUS_IS_OK(status)) {
+               if (seq) {
+                       *seq = info->general.sequence_num;
+                       got_seq_num = true;
+               }
+       }
+
+seq_num:
+       if (got_seq_num) {
+               DEBUG(10,("domain_sequence_number: for domain %s is %u\n",
+                         domain->name, (unsigned)*seq));
+       } else {
+               DEBUG(10,("domain_sequence_number: failed to get sequence "
+                         "number (%u) for domain %s\n",
+                         (unsigned) *seq, domain->name ));
+               status = NT_STATUS_OK;
+       }
+
+error:
+       talloc_destroy(mem_ctx);
+       return status;
 }
 
-#if 0
 /* the rpc backend methods are exposed via this structure */
 struct winbindd_methods builtin_passdb_methods = {
        .consistent            = false,
@@ -1446,4 +1508,3 @@ struct winbindd_methods sam_passdb_methods = {
        .password_policy       = common_password_policy,
        .trusted_domains       = sam_trusted_domains
 };
-#endif