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54f4536980
So instead of running dreplsrv_periodic_schedule when receiving a DRS_REPLICA_SYNC request which will force the DC to look for changes with all the DC it usually replicate to, we reduce it to the DC specified in the DRS_REPLICA_SYNC request. It will allow also to do have the correct options as set by the client who send the DRS_REPLICA_SYNC. Signed-off-by: Matthieu Patou <mat@matws.net> Reviewed-by: Stefan Metzmacher <metze@samba.org>
197 lines
5.3 KiB
C
197 lines
5.3 KiB
C
/*
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Unix SMB/CIFS mplementation.
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DSDB replication service periodic handling
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Copyright (C) Stefan Metzmacher 2007
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "lib/events/events.h"
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#include "dsdb/samdb/samdb.h"
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#include "auth/auth.h"
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#include "smbd/service.h"
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#include "dsdb/repl/drepl_service.h"
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#include <ldb_errors.h>
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#include "../lib/util/dlinklist.h"
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#include "librpc/gen_ndr/ndr_misc.h"
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#include "librpc/gen_ndr/ndr_drsuapi.h"
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#include "librpc/gen_ndr/ndr_drsblobs.h"
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static void dreplsrv_periodic_run(struct dreplsrv_service *service);
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static void dreplsrv_periodic_handler_te(struct tevent_context *ev, struct tevent_timer *te,
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struct timeval t, void *ptr)
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{
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struct dreplsrv_service *service = talloc_get_type(ptr, struct dreplsrv_service);
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WERROR status;
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service->periodic.te = NULL;
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dreplsrv_periodic_run(service);
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status = dreplsrv_periodic_schedule(service, service->periodic.interval);
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if (!W_ERROR_IS_OK(status)) {
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task_server_terminate(service->task, win_errstr(status), false);
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return;
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}
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}
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WERROR dreplsrv_periodic_schedule(struct dreplsrv_service *service, uint32_t next_interval)
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{
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TALLOC_CTX *tmp_mem;
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struct tevent_timer *new_te;
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struct timeval next_time;
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/* prevent looping */
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if (next_interval == 0) next_interval = 1;
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next_time = timeval_current_ofs(next_interval, 50);
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if (service->periodic.te) {
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/*
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* if the timestamp of the new event is higher,
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* as current next we don't need to reschedule
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*/
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if (timeval_compare(&next_time, &service->periodic.next_event) > 0) {
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return WERR_OK;
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}
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}
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/* reset the next scheduled timestamp */
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service->periodic.next_event = next_time;
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new_te = tevent_add_timer(service->task->event_ctx, service,
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service->periodic.next_event,
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dreplsrv_periodic_handler_te, service);
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W_ERROR_HAVE_NO_MEMORY(new_te);
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tmp_mem = talloc_new(service);
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DEBUG(4,("dreplsrv_periodic_schedule(%u) %sscheduled for: %s\n",
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next_interval,
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(service->periodic.te?"re":""),
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nt_time_string(tmp_mem, timeval_to_nttime(&next_time))));
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talloc_free(tmp_mem);
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talloc_free(service->periodic.te);
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service->periodic.te = new_te;
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return WERR_OK;
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}
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static void dreplsrv_periodic_run(struct dreplsrv_service *service)
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{
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TALLOC_CTX *mem_ctx;
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DEBUG(4,("dreplsrv_periodic_run(): schedule pull replication\n"));
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/*
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* KCC or some administrative tool
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* might have changed Topology graph
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* i.e. repsFrom/repsTo
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*/
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dreplsrv_refresh_partitions(service);
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mem_ctx = talloc_new(service);
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dreplsrv_schedule_pull_replication(service, mem_ctx);
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talloc_free(mem_ctx);
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DEBUG(4,("dreplsrv_periodic_run(): run pending_ops memory=%u\n",
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(unsigned)talloc_total_blocks(service)));
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dreplsrv_ridalloc_check_rid_pool(service);
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dreplsrv_run_pending_ops(service);
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}
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/*
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run the next pending op, either a notify or a pull
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*/
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void dreplsrv_run_pending_ops(struct dreplsrv_service *s)
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{
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if (!s->ops.notifies && !s->ops.pending) {
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return;
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}
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if (!s->ops.notifies ||
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(s->ops.pending &&
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s->ops.notifies->schedule_time > s->ops.pending->schedule_time)) {
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dreplsrv_run_pull_ops(s);
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} else {
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dreplsrv_notify_run_ops(s);
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}
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}
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static void dreplsrv_pending_run(struct dreplsrv_service *service);
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static void dreplsrv_pending_handler_te(struct tevent_context *ev, struct tevent_timer *te,
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struct timeval t, void *ptr)
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{
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struct dreplsrv_service *service = talloc_get_type(ptr, struct dreplsrv_service);
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service->pending.te = NULL;
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dreplsrv_pending_run(service);
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}
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WERROR dreplsrv_pendingops_schedule(struct dreplsrv_service *service, uint32_t next_interval)
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{
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TALLOC_CTX *tmp_mem;
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struct tevent_timer *new_te;
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struct timeval next_time;
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/* prevent looping */
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if (next_interval == 0) {
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next_interval = 1;
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}
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next_time = timeval_current_ofs(next_interval, 50);
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if (service->pending.te) {
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/*
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* if the timestamp of the new event is higher,
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* as current next we don't need to reschedule
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*/
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if (timeval_compare(&next_time, &service->pending.next_event) > 0) {
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return WERR_OK;
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}
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}
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/* reset the next scheduled timestamp */
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service->pending.next_event = next_time;
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new_te = tevent_add_timer(service->task->event_ctx, service,
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service->pending.next_event,
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dreplsrv_pending_handler_te, service);
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W_ERROR_HAVE_NO_MEMORY(new_te);
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tmp_mem = talloc_new(service);
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DEBUG(4,("dreplsrv_pending_schedule(%u) %sscheduled for: %s\n",
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next_interval,
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(service->pending.te?"re":""),
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nt_time_string(tmp_mem, timeval_to_nttime(&next_time))));
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talloc_free(tmp_mem);
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talloc_free(service->pending.te);
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service->pending.te = new_te;
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return WERR_OK;
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}
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static void dreplsrv_pending_run(struct dreplsrv_service *service)
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{
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dreplsrv_run_pending_ops(service);
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}
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