2 Unix SMB/CIFS implementation.
4 WINS Replication server
6 Copyright (C) Stefan Metzmacher 2005
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include "librpc/gen_ndr/ndr_winsrepl.h"
25 #include "wrepl_server/wrepl_server.h"
26 #include "libcli/composite/composite.h"
27 #include "wrepl_server/wrepl_out_helpers.h"
29 static void wreplsrv_out_pull_reschedule(struct wreplsrv_partner *partner, uint32_t interval)
33 partner->pull.next_run = timeval_current_ofs(interval, 0);
34 status = wreplsrv_periodic_schedule(partner->service, interval);
35 if (!NT_STATUS_IS_OK(status)) {
36 DEBUG(0,("wreplsrv_periodic_schedule() failed\n"));
40 static void wreplsrv_pull_handler_creq(struct composite_context *creq)
42 struct wreplsrv_partner *partner = talloc_get_type(creq->async.private_data, struct wreplsrv_partner);
43 struct wreplsrv_pull_cycle_io *old_cycle_io;
44 struct wrepl_table inform_in;
46 partner->pull.last_status = wreplsrv_pull_cycle_recv(partner->pull.creq);
47 partner->pull.creq = NULL;
49 old_cycle_io = partner->pull.cycle_io;
50 partner->pull.cycle_io = NULL;
52 if (NT_STATUS_IS_OK(partner->pull.last_status)) {
53 partner->pull.error_count = 0;
54 DEBUG(2,("wreplsrv_pull_cycle(%s): %s\n",
55 partner->address, nt_errstr(partner->pull.last_status)));
59 partner->pull.error_count++;
61 if (partner->pull.error_count > 1) {
62 uint32_t retry_interval;
64 retry_interval = partner->pull.error_count * partner->pull.retry_interval;
65 retry_interval = MIN(retry_interval, partner->pull.interval);
67 DEBUG(1,("wreplsrv_pull_cycle(%s): %s: error_count: %u: reschedule(%u)\n",
68 partner->address, nt_errstr(partner->pull.last_status),
69 partner->pull.error_count, retry_interval));
71 wreplsrv_out_pull_reschedule(partner, retry_interval);
75 DEBUG(1,("wreplsrv_pull_cycle(%s): %s: error_count:%u retry\n",
76 partner->address, nt_errstr(partner->pull.last_status),
77 partner->pull.error_count));
78 inform_in.partner_count = old_cycle_io->in.num_owners;
79 inform_in.partners = old_cycle_io->in.owners;
80 wreplsrv_out_partner_pull(partner, &inform_in);
82 talloc_free(old_cycle_io);
85 void wreplsrv_out_partner_pull(struct wreplsrv_partner *partner, struct wrepl_table *inform_in)
87 /* there's already a pull in progress, so we're done */
88 if (partner->pull.creq) return;
90 partner->pull.cycle_io = talloc(partner, struct wreplsrv_pull_cycle_io);
91 if (!partner->pull.cycle_io) {
95 partner->pull.cycle_io->in.partner = partner;
96 partner->pull.cycle_io->in.wreplconn = NULL;
98 partner->pull.cycle_io->in.num_owners = inform_in->partner_count;
99 partner->pull.cycle_io->in.owners = inform_in->partners;
100 talloc_steal(partner->pull.cycle_io, inform_in->partners);
102 partner->pull.cycle_io->in.num_owners = 0;
103 partner->pull.cycle_io->in.owners = NULL;
105 partner->pull.creq = wreplsrv_pull_cycle_send(partner->pull.cycle_io, partner->pull.cycle_io);
106 if (!partner->pull.creq) {
107 DEBUG(1,("wreplsrv_pull_cycle_send(%s) failed\n",
112 partner->pull.creq->async.fn = wreplsrv_pull_handler_creq;
113 partner->pull.creq->async.private_data = partner;
117 talloc_free(partner->pull.cycle_io);
118 partner->pull.cycle_io = NULL;
119 DEBUG(0,("wreplsrv_out_partner_pull(%s): no memory? (ignoring)\n",
124 NTSTATUS wreplsrv_out_pull_run(struct wreplsrv_service *service)
126 struct wreplsrv_partner *partner;
128 for (partner = service->partners; partner; partner = partner->next) {
129 /* if it's not a pull partner, go to the next partner */
130 if (!(partner->type & WINSREPL_PARTNER_PULL)) continue;
132 /* if pulling is disabled for the partner, go to the next one */
133 if (partner->pull.interval == 0) continue;
135 /* if the next timer isn't reached, go to the next partner */
136 if (!timeval_expired(&partner->pull.next_run)) continue;
138 wreplsrv_out_pull_reschedule(partner, partner->pull.interval);
140 wreplsrv_out_partner_pull(partner, NULL);