s4/repl: implement DsReplicaSync

This patch implements DsReplicaSync by passing the call via irpc to
the repl server task. The repl server then triggers an immediate
replication of the specified partition.

This means we no longer need to set a small value for
dreplsrv:periodic_interval to force frequent DRS replication. We can
now wait for the DC to send us a ReplicaSync msg for any partition
that changes, and we immediately sync that partition.

1 files changed, 26 insertions, 5 deletions

diff --git a/source4/rpc_server/drsuapi/dcesrv_drsuapi.c b/source4/rpc_server/drsuapi/dcesrv_drsuapi.c
index a9c7eb794a..73cc8cb1ef 100644
--- a/source4/rpc_server/drsuapi/dcesrv_drsuapi.c
+++ b/source4/rpc_server/drsuapi/dcesrv_drsuapi.c
@@ -29,6 +29,7 @@
 #include "lib/ldb/include/ldb_errors.h"
 #include "param/param.h"
 #include "librpc/gen_ndr/ndr_drsblobs.h"
+#include "messaging/irpc.h"
 
 /* 
   drsuapi_DsBind 
@@ -228,12 +229,32 @@ static WERROR dcesrv_drsuapi_DsUnbind(struct dcesrv_call_state *dce_call, TALLOC
   drsuapi_DsReplicaSync 
 */
 static WERROR dcesrv_drsuapi_DsReplicaSync(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
-		       struct drsuapi_DsReplicaSync *r)
+					   struct drsuapi_DsReplicaSync *r)
 {
-	/* TODO: implement this call correct!
-	 *       for now we just say yes,
-	 *       because we have no output parameter
-	 */
+	struct server_id *repld;
+	struct irpc_request *ireq;
+
+	if (DEBUGLVL(4)) {
+		NDR_PRINT_IN_DEBUG(drsuapi_DsReplicaSync, r);
+	}
+
+	repld = irpc_servers_byname(dce_call->msg_ctx, mem_ctx, "dreplsrv");
+	if (repld == NULL || repld[0].id == 0) {
+		DEBUG(0,("DsReplicaSync: Unable to find dreplsrv task\n"));
+		return WERR_DS_DRA_INTERNAL_ERROR;
+	}
+
+	ireq = IRPC_CALL_SEND(dce_call->msg_ctx, repld[0],
+			      drsuapi, DRSUAPI_DSREPLICASYNC,
+			      r, mem_ctx);
+	if (ireq == NULL) {
+		DEBUG(0,("DsReplicaSync: Failed to forward request to dreplsrv task\n"));
+		return WERR_DS_DRA_INTERNAL_ERROR;
+	}
+
+	/* we are not interested in a reply */
+	talloc_free(ireq);
+
 	return WERR_OK;
 }