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/*
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_pull_handler_te(struct event_context *ev, struct timed_event *te,
struct timeval t, void *ptr);
static void wreplsrv_pull_handler_creq(struct composite_context *creq)
{
struct wreplsrv_partner *partner = talloc_get_type(creq->async.private_data, struct wreplsrv_partner);
uint32_t interval;
partner->pull.last_status = wreplsrv_pull_cycle_recv(partner->pull.creq);
partner->pull.creq = NULL;
talloc_free(partner->pull.cycle_io);
partner->pull.cycle_io = NULL;
if (!NT_STATUS_IS_OK(partner->pull.last_status)) {
interval = partner->pull.error_count * partner->pull.retry_interval;
interval = MIN(interval, partner->pull.interval);
partner->pull.error_count++;
DEBUG(1,("wreplsrv_pull_cycle(%s): %s: next: %us\n",
partner->address, nt_errstr(partner->pull.last_status),
interval));
} else {
interval = partner->pull.interval;
partner->pull.error_count = 0;
DEBUG(2,("wreplsrv_pull_cycle(%s): %s: next: %us\n",
partner->address, nt_errstr(partner->pull.last_status),
interval));
}
partner->pull.te = event_add_timed(partner->service->task->event_ctx, partner,
timeval_current_ofs(interval, 0),
wreplsrv_pull_handler_te, partner);
if (!partner->pull.te) {
DEBUG(0,("wreplsrv_pull_handler_creq: event_add_timed() failed! no memory!\n"));
}
}
static void wreplsrv_pull_handler_te(struct event_context *ev, struct timed_event *te,
struct timeval t, void *ptr)
{
struct wreplsrv_partner *partner = talloc_get_type(ptr, struct wreplsrv_partner);
partner->pull.te = NULL;
partner->pull.cycle_io = talloc(partner, struct wreplsrv_pull_cycle_io);
if (!partner->pull.cycle_io) {
goto requeue;
}
partner->pull.cycle_io->in.partner = partner;
partner->pull.cycle_io->in.num_owners = 0;
partner->pull.cycle_io->in.owners = NULL;
partner->pull.cycle_io->in.wreplconn = 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 requeue;
}
partner->pull.creq->async.fn = wreplsrv_pull_handler_creq;
partner->pull.creq->async.private_data = partner;
return;
requeue:
talloc_free(partner->pull.cycle_io);
partner->pull.cycle_io = NULL;
/* retry later */
partner->pull.te = event_add_timed(partner->service->task->event_ctx, partner,
timeval_add(&t, partner->pull.retry_interval, 0),
wreplsrv_pull_handler_te, partner);
if (!partner->pull.te) {
DEBUG(0,("wreplsrv_pull_handler_te: event_add_timed() failed! no memory!\n"));
}
}
NTSTATUS wreplsrv_sched_inform_action(struct wreplsrv_partner *partner, struct wrepl_table *inform_in)
{
if (partner->pull.creq) {
/* there's already a pull in progress, so we're done */
return NT_STATUS_OK;
}
/* remove the scheduled pull */
talloc_free(partner->pull.te);
partner->pull.te = NULL;
partner->pull.cycle_io = talloc(partner, struct wreplsrv_pull_cycle_io);
if (!partner->pull.cycle_io) {
goto requeue;
}
partner->pull.cycle_io->in.partner = partner;
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);
partner->pull.cycle_io->in.wreplconn = 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 requeue;
}
partner->pull.creq->async.fn = wreplsrv_pull_handler_creq;
partner->pull.creq->async.private_data = partner;
return NT_STATUS_OK;
requeue:
talloc_free(partner->pull.cycle_io);
partner->pull.cycle_io = NULL;
/* retry later */
partner->pull.te = event_add_timed(partner->service->task->event_ctx, partner,
timeval_current_ofs(partner->pull.retry_interval, 0),
wreplsrv_pull_handler_te, partner);
if (!partner->pull.te) {
DEBUG(0,("wreplsrv_pull_handler_te: event_add_timed() failed! no memory!\n"));
}
return NT_STATUS_OK;
}
NTSTATUS wreplsrv_setup_out_connections(struct wreplsrv_service *service)
{
struct wreplsrv_partner *cur;
for (cur = service->partners; cur; cur = cur->next) {
if ((cur->type & WINSREPL_PARTNER_PULL) && cur->pull.interval) {
cur->pull.te = event_add_timed(service->task->event_ctx, cur,
timeval_zero(), wreplsrv_pull_handler_te, cur);
NT_STATUS_HAVE_NO_MEMORY(cur->pull.te);
}
}
return NT_STATUS_OK;
}
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