--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ WINS Replication server
+
+ Copyright (C) Stefan Metzmacher 2005
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "dlinklist.h"
+#include "lib/events/events.h"
+#include "lib/socket/socket.h"
+#include "smbd/service_task.h"
+#include "smbd/service_stream.h"
+#include "lib/messaging/irpc.h"
+#include "librpc/gen_ndr/ndr_winsrepl.h"
+#include "wrepl_server/wrepl_server.h"
+#include "nbt_server/wins/winsdb.h"
+#include "ldb/include/ldb.h"
+#include "libcli/composite/composite.h"
+#include "libcli/wrepl/winsrepl.h"
+#include "wrepl_server/wrepl_out_helpers.h"
+
+static void wreplsrv_out_pull_reschedule(struct wreplsrv_partner *partner, uint32_t interval)
+{
+ NTSTATUS status;
+
+ partner->pull.next_run = timeval_current_ofs(interval, 0);
+ status = wreplsrv_periodic_schedule(partner->service, interval);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("wreplsrv_periodic_schedule() failed\n"));
+ }
+}
+
+static void wreplsrv_pull_handler_creq(struct composite_context *creq)
+{
+ struct wreplsrv_partner *partner = talloc_get_type(creq->async.private_data, struct wreplsrv_partner);
+ struct wreplsrv_pull_cycle_io *old_cycle_io;
+ struct wrepl_table inform_in;
+
+ partner->pull.last_status = wreplsrv_pull_cycle_recv(partner->pull.creq);
+ partner->pull.creq = NULL;
+
+ old_cycle_io = partner->pull.cycle_io;
+ partner->pull.cycle_io = NULL;
+
+ if (NT_STATUS_IS_OK(partner->pull.last_status)) {
+ partner->pull.error_count = 0;
+ DEBUG(2,("wreplsrv_pull_cycle(%s): %s\n",
+ partner->address, nt_errstr(partner->pull.last_status)));
+ goto done;
+ }
+
+ partner->pull.error_count++;
+
+ if (partner->pull.error_count > 1) {
+ uint32_t retry_interval;
+
+ retry_interval = partner->pull.error_count * partner->pull.retry_interval;
+ retry_interval = MIN(retry_interval, partner->pull.interval);
+
+ DEBUG(1,("wreplsrv_pull_cycle(%s): %s: error_count: %u: reschedule(%u)\n",
+ partner->address, nt_errstr(partner->pull.last_status),
+ partner->pull.error_count, retry_interval));
+
+ wreplsrv_out_pull_reschedule(partner, retry_interval);
+ goto done;
+ }
+
+ DEBUG(1,("wreplsrv_pull_cycle(%s): %s: error_count:%u retry\n",
+ partner->address, nt_errstr(partner->pull.last_status),
+ partner->pull.error_count));
+ inform_in.partner_count = old_cycle_io->in.num_owners;
+ inform_in.partners = old_cycle_io->in.owners;
+ wreplsrv_out_partner_pull(partner, &inform_in);
+done:
+ talloc_free(old_cycle_io);
+}
+
+void wreplsrv_out_partner_pull(struct wreplsrv_partner *partner, struct wrepl_table *inform_in)
+{
+ /* there's already a pull in progress, so we're done */
+ if (partner->pull.creq) return;
+
+ partner->pull.cycle_io = talloc(partner, struct wreplsrv_pull_cycle_io);
+ if (!partner->pull.cycle_io) {
+ goto nomem;
+ }
+
+ partner->pull.cycle_io->in.partner = partner;
+ partner->pull.cycle_io->in.wreplconn = NULL;
+ if (inform_in) {
+ partner->pull.cycle_io->in.num_owners = inform_in->partner_count;
+ partner->pull.cycle_io->in.owners = inform_in->partners;
+ talloc_steal(partner->pull.cycle_io, inform_in->partners);
+ } else {
+ partner->pull.cycle_io->in.num_owners = 0;
+ partner->pull.cycle_io->in.owners = NULL;
+ }
+ partner->pull.creq = wreplsrv_pull_cycle_send(partner->pull.cycle_io, partner->pull.cycle_io);
+ if (!partner->pull.creq) {
+ DEBUG(1,("wreplsrv_pull_cycle_send(%s) failed\n",
+ partner->address));
+ goto nomem;
+ }
+
+ partner->pull.creq->async.fn = wreplsrv_pull_handler_creq;
+ partner->pull.creq->async.private_data = partner;
+
+ return;
+nomem:
+ talloc_free(partner->pull.cycle_io);
+ partner->pull.cycle_io = NULL;
+ DEBUG(0,("wreplsrv_out_partner_pull(%s): no memory? (ignoring)\n",
+ partner->address));
+ return;
+}
+
+NTSTATUS wreplsrv_out_pull_run(struct wreplsrv_service *service)
+{
+ struct wreplsrv_partner *partner;
+
+ for (partner = service->partners; partner; partner = partner->next) {
+ /* if it's not a pull partner, go to the next partner */
+ if (!(partner->type & WINSREPL_PARTNER_PULL)) continue;
+
+ /* if pulling is disabled for the partner, go to the next one */
+ if (partner->pull.interval == 0) continue;
+
+ /* if the next timer isn't reached, go to the next partner */
+ if (!timeval_expired(&partner->pull.next_run)) continue;
+
+ wreplsrv_out_pull_reschedule(partner, partner->pull.interval);
+
+ wreplsrv_out_partner_pull(partner, NULL);
+ }
+
+ return NT_STATUS_OK;
+}
git.samba.org / kai / samba.git / blobdiff