mirror of
https://github.com/samba-team/samba.git
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0479a2f1cb
There are still a few tidyups of old FSF addresses to come (in both s3
and s4). More commits soon.
(This used to be commit fcf38a38ac)
143 lines
4.5 KiB
C
143 lines
4.5 KiB
C
/*
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Unix SMB/CIFS implementation.
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WINS Replication server
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Copyright (C) Stefan Metzmacher 2005
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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 "librpc/gen_ndr/winsrepl.h"
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#include "wrepl_server/wrepl_server.h"
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#include "libcli/composite/composite.h"
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static void wreplsrv_out_pull_reschedule(struct wreplsrv_partner *partner, uint32_t interval)
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{
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NTSTATUS status;
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partner->pull.next_run = timeval_current_ofs(interval, 0);
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status = wreplsrv_periodic_schedule(partner->service, interval);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0,("wreplsrv_periodic_schedule() failed\n"));
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}
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}
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static void wreplsrv_pull_handler_creq(struct composite_context *creq)
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{
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struct wreplsrv_partner *partner = talloc_get_type(creq->async.private_data, struct wreplsrv_partner);
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struct wreplsrv_pull_cycle_io *old_cycle_io;
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struct wrepl_table inform_in;
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partner->pull.last_status = wreplsrv_pull_cycle_recv(partner->pull.creq);
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partner->pull.creq = NULL;
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old_cycle_io = partner->pull.cycle_io;
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partner->pull.cycle_io = NULL;
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if (NT_STATUS_IS_OK(partner->pull.last_status)) {
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partner->pull.error_count = 0;
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DEBUG(2,("wreplsrv_pull_cycle(%s): %s\n",
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partner->address, nt_errstr(partner->pull.last_status)));
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goto done;
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}
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partner->pull.error_count++;
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if (partner->pull.error_count > 1) {
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uint32_t retry_interval;
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retry_interval = partner->pull.error_count * partner->pull.retry_interval;
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retry_interval = MIN(retry_interval, partner->pull.interval);
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DEBUG(1,("wreplsrv_pull_cycle(%s): %s: error_count: %u: reschedule(%u)\n",
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partner->address, nt_errstr(partner->pull.last_status),
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partner->pull.error_count, retry_interval));
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wreplsrv_out_pull_reschedule(partner, retry_interval);
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goto done;
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}
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DEBUG(1,("wreplsrv_pull_cycle(%s): %s: error_count:%u retry\n",
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partner->address, nt_errstr(partner->pull.last_status),
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partner->pull.error_count));
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inform_in.partner_count = old_cycle_io->in.num_owners;
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inform_in.partners = old_cycle_io->in.owners;
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wreplsrv_out_partner_pull(partner, &inform_in);
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done:
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talloc_free(old_cycle_io);
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}
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void wreplsrv_out_partner_pull(struct wreplsrv_partner *partner, struct wrepl_table *inform_in)
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{
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/* there's already a pull in progress, so we're done */
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if (partner->pull.creq) return;
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partner->pull.cycle_io = talloc(partner, struct wreplsrv_pull_cycle_io);
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if (!partner->pull.cycle_io) {
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goto nomem;
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}
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partner->pull.cycle_io->in.partner = partner;
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partner->pull.cycle_io->in.wreplconn = NULL;
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if (inform_in) {
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partner->pull.cycle_io->in.num_owners = inform_in->partner_count;
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partner->pull.cycle_io->in.owners = inform_in->partners;
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talloc_steal(partner->pull.cycle_io, inform_in->partners);
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} else {
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partner->pull.cycle_io->in.num_owners = 0;
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partner->pull.cycle_io->in.owners = NULL;
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}
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partner->pull.creq = wreplsrv_pull_cycle_send(partner->pull.cycle_io, partner->pull.cycle_io);
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if (!partner->pull.creq) {
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DEBUG(1,("wreplsrv_pull_cycle_send(%s) failed\n",
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partner->address));
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goto nomem;
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}
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partner->pull.creq->async.fn = wreplsrv_pull_handler_creq;
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partner->pull.creq->async.private_data = partner;
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return;
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nomem:
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talloc_free(partner->pull.cycle_io);
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partner->pull.cycle_io = NULL;
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DEBUG(0,("wreplsrv_out_partner_pull(%s): no memory? (ignoring)\n",
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partner->address));
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return;
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}
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NTSTATUS wreplsrv_out_pull_run(struct wreplsrv_service *service)
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{
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struct wreplsrv_partner *partner;
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for (partner = service->partners; partner; partner = partner->next) {
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/* if it's not a pull partner, go to the next partner */
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if (!(partner->type & WINSREPL_PARTNER_PULL)) continue;
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/* if pulling is disabled for the partner, go to the next one */
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if (partner->pull.interval == 0) continue;
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/* if the next timer isn't reached, go to the next partner */
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if (!timeval_expired(&partner->pull.next_run)) continue;
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wreplsrv_out_pull_reschedule(partner, partner->pull.interval);
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wreplsrv_out_partner_pull(partner, NULL);
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}
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return NT_STATUS_OK;
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}
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