Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 157 insertions, 0 deletions

diff --git a/source4/dsdb/repl/drepl_periodic.c b/source4/dsdb/repl/drepl_periodic.c
new file mode 100644
index 0000000..4cdc8cb
--- /dev/null
+++ b/source4/dsdb/repl/drepl_periodic.c
@@ -0,0 +1,157 @@
+/* 
+   Unix SMB/CIFS Implementation.
+   DSDB replication service periodic handling
+   
+   Copyright (C) Stefan Metzmacher 2007
+    
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+   
+*/
+
+#include "includes.h"
+#include "lib/events/events.h"
+#include "dsdb/samdb/samdb.h"
+#include "auth/auth.h"
+#include "samba/service.h"
+#include "dsdb/repl/drepl_service.h"
+#include <ldb_errors.h>
+#include "../lib/util/dlinklist.h"
+#include "librpc/gen_ndr/ndr_misc.h"
+#include "librpc/gen_ndr/ndr_drsuapi.h"
+#include "librpc/gen_ndr/ndr_drsblobs.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS            DBGC_DRS_REPL
+
+static void dreplsrv_periodic_run(struct dreplsrv_service *service);
+
+static void dreplsrv_periodic_handler_te(struct tevent_context *ev, struct tevent_timer *te,
+					 struct timeval t, void *ptr)
+{
+	struct dreplsrv_service *service = talloc_get_type(ptr, struct dreplsrv_service);
+	WERROR status;
+
+	service->periodic.te = NULL;
+
+	dreplsrv_periodic_run(service);
+
+	status = dreplsrv_periodic_schedule(service, service->periodic.interval);
+	if (!W_ERROR_IS_OK(status)) {
+		task_server_terminate(service->task, win_errstr(status), false);
+		return;
+	}
+}
+
+WERROR dreplsrv_periodic_schedule(struct dreplsrv_service *service, uint32_t next_interval)
+{
+	TALLOC_CTX *tmp_mem;
+	struct tevent_timer *new_te;
+	struct timeval next_time;
+
+	/* prevent looping */
+	if (next_interval == 0) next_interval = 1;
+
+	next_time = timeval_current_ofs(next_interval, 50);
+
+	if (service->periodic.te) {
+		/*
+		 * if the timestamp of the new event is higher,
+		 * as current next we don't need to reschedule
+		 */
+		if (timeval_compare(&next_time, &service->periodic.next_event) > 0) {
+			return WERR_OK;
+		}
+	}
+
+	/* reset the next scheduled timestamp */
+	service->periodic.next_event = next_time;
+
+	new_te = tevent_add_timer(service->task->event_ctx, service,
+			         service->periodic.next_event,
+			         dreplsrv_periodic_handler_te, service);
+	W_ERROR_HAVE_NO_MEMORY(new_te);
+
+	tmp_mem = talloc_new(service);
+	DEBUG(4,("dreplsrv_periodic_schedule(%u) %sscheduled for: %s\n",
+		next_interval,
+		(service->periodic.te?"re":""),
+		nt_time_string(tmp_mem, timeval_to_nttime(&next_time))));
+	talloc_free(tmp_mem);
+
+	talloc_free(service->periodic.te);
+	service->periodic.te = new_te;
+
+	return WERR_OK;
+}
+
+static void dreplsrv_periodic_run(struct dreplsrv_service *service)
+{
+	TALLOC_CTX *mem_ctx;
+
+	DEBUG(4,("dreplsrv_periodic_run(): schedule pull replication\n"));
+
+	/*
+	 * KCC or some administrative tool
+	 * might have changed Topology graph
+	 * i.e. repsFrom/repsTo
+	 */
+	dreplsrv_refresh_partitions(service);
+
+	mem_ctx = talloc_new(service);
+	dreplsrv_schedule_pull_replication(service, mem_ctx);
+	talloc_free(mem_ctx);
+
+	DEBUG(4,("dreplsrv_periodic_run(): run pending_ops memory=%u\n", 
+		 (unsigned)talloc_total_blocks(service)));
+
+	dreplsrv_ridalloc_check_rid_pool(service);
+
+	dreplsrv_run_pending_ops(service);
+}
+
+/*
+  run the next pending op, either a notify or a pull
+ */
+void dreplsrv_run_pending_ops(struct dreplsrv_service *s)
+{
+	if (!s->ops.notifies && !s->ops.pending) {
+		return;
+	}
+	if (!s->ops.notifies ||
+	    (s->ops.pending &&
+	     s->ops.notifies->schedule_time > s->ops.pending->schedule_time)) {
+		dreplsrv_run_pull_ops(s);
+	} else {
+		dreplsrv_notify_run_ops(s);
+	}
+}
+
+static void dreplsrv_pending_pull_handler_im(struct tevent_context *ev,
+					     struct tevent_immediate *im,
+					     void *ptr)
+{
+	struct dreplsrv_service *service = talloc_get_type(ptr, struct dreplsrv_service);
+
+	dreplsrv_run_pull_ops(service);
+}
+
+void dreplsrv_pendingops_schedule_pull_now(struct dreplsrv_service *service)
+{
+	tevent_schedule_immediate(service->pending.im, service->task->event_ctx,
+				  dreplsrv_pending_pull_handler_im,
+				  service);
+
+	return;
+}
+