--- /dev/null
+/*
+ Unix SMB/CIFS mplementation.
+ DSDB replication service
+
+ Copyright (C) Stefan Metzmacher 2007
+
+ 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 "dsdb/samdb/samdb.h"
+#include "auth/auth.h"
+#include "smbd/service.h"
+#include "lib/events/events.h"
+#include "lib/messaging/irpc.h"
+#include "dsdb/repl/drepl_service.h"
+#include "lib/ldb/include/ldb_errors.h"
+#include "lib/util/dlinklist.h"
+#include "librpc/gen_ndr/ndr_misc.h"
+#include "librpc/gen_ndr/ndr_drsuapi.h"
+#include "librpc/gen_ndr/ndr_drsblobs.h"
+
+static WERROR dreplsrv_init_creds(struct dreplsrv_service *service)
+{
+ NTSTATUS status;
+
+ status = auth_system_session_info(service, &service->system_session_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ return ntstatus_to_werror(status);
+ }
+
+ return WERR_OK;
+}
+
+static WERROR dreplsrv_connect_samdb(struct dreplsrv_service *service)
+{
+ service->samdb = samdb_connect(service, service->system_session_info);
+ if (!service->samdb) {
+ return WERR_DS_SERVICE_UNAVAILABLE;
+ }
+
+ return WERR_OK;
+}
+
+static void dreplsrv_periodic_handler_te(struct event_context *ev, struct timed_event *te,
+ struct timeval t, void *ptr)
+{
+ struct dreplsrv_service *service = talloc_get_type(ptr, struct dreplsrv_service);
+ WERROR status;
+
+ service->periodic.te = NULL;
+
+ status = dreplsrv_periodic_schedule(service, service->periodic.interval);
+ if (!W_ERROR_IS_OK(status)) {
+ task_server_terminate(service->task, win_errstr(status));
+ return;
+ }
+}
+
+WERROR dreplsrv_periodic_schedule(struct dreplsrv_service *service, uint32_t next_interval)
+{
+ TALLOC_CTX *tmp_mem;
+ struct timed_event *new_te;
+ struct timeval next_time;
+
+ /* prevent looping */
+ if (next_interval == 0) next_interval = 1;
+
+ next_time = timeval_current_ofs(next_interval, 5000);
+
+ if (service->periodic.te) {
+ /*
+ * if the timestamp of the new event is higher,
+ * as current next we don't need to reschedule
+ */
+ if (timeval_compare(&next_time, &service->periodic.next_event) > 0) {
+ return WERR_OK;
+ }
+ }
+
+ /* reset the next scheduled timestamp */
+ service->periodic.next_event = next_time;
+
+ new_te = event_add_timed(service->task->event_ctx, service,
+ service->periodic.next_event,
+ dreplsrv_periodic_handler_te, service);
+ W_ERROR_HAVE_NO_MEMORY(new_te);
+
+ tmp_mem = talloc_new(service);
+ DEBUG(4,("dreplsrv_periodic_schedule(%u) %sscheduled for: %s\n",
+ next_interval,
+ (service->periodic.te?"re":""),
+ nt_time_string(tmp_mem, timeval_to_nttime(&next_time))));
+ talloc_free(tmp_mem);
+
+ talloc_free(service->periodic.te);
+ service->periodic.te = new_te;
+
+ return WERR_OK;
+}
+/*
+ startup the dsdb replicator service task
+*/
+static void dreplsrv_task_init(struct task_server *task)
+{
+ WERROR status;
+ struct dreplsrv_service *service;
+
+ switch (lp_server_role()) {
+ case ROLE_STANDALONE:
+ task_server_terminate(task, "dreplsrv: no DSDB replication required in standalone configuration");
+ return;
+ case ROLE_DOMAIN_MEMBER:
+ task_server_terminate(task, "dreplsrv: no DSDB replication required in domain member configuration");
+ return;
+ case ROLE_DOMAIN_CONTROLLER:
+ /* Yes, we want DSDB replication */
+ break;
+ }
+
+ task_server_set_title(task, "task[dreplsrv]");
+
+ service = talloc_zero(task, struct dreplsrv_service);
+ if (!service) {
+ task_server_terminate(task, "dreplsrv_task_init: out of memory");
+ return;
+ }
+ service->task = task;
+ service->startup_time = timeval_current();
+ task->private = service;
+
+ status = dreplsrv_init_creds(service);
+ if (!W_ERROR_IS_OK(status)) {
+ task_server_terminate(task, talloc_asprintf(task,
+ "dreplsrv: Failed to obtain server credentials: %s\n",
+ win_errstr(status)));
+ return;
+ }
+
+ status = dreplsrv_connect_samdb(service);
+ if (!W_ERROR_IS_OK(status)) {
+ task_server_terminate(task, talloc_asprintf(task,
+ "dreplsrv: Failed to connect to local samdb: %s\n",
+ win_errstr(status)));
+ return;
+ }
+
+ service->periodic.interval = 30; /* in seconds */
+
+ status = dreplsrv_periodic_schedule(service, service->periodic.interval);
+ if (!W_ERROR_IS_OK(status)) {
+ task_server_terminate(task, talloc_asprintf(task,
+ "dreplsrv: Failed to periodic schedule: %s\n",
+ win_errstr(status)));
+ return;
+ }
+
+ irpc_add_name(task->msg_ctx, "dreplsrv");
+}
+
+/*
+ initialise the dsdb replicator service
+ */
+static NTSTATUS dreplsrv_init(struct event_context *event_ctx, const struct model_ops *model_ops)
+{
+ return task_server_startup(event_ctx, model_ops, dreplsrv_task_init);
+}
+
+/*
+ register ourselves as a available server
+*/
+NTSTATUS server_service_drepl_init(void)
+{
+ return register_server_service("drepl", dreplsrv_init);
+}
--- /dev/null
+/*
+ Unix SMB/CIFS mplementation.
+ DSDB replication service
+
+ Copyright (C) Stefan Metzmacher 2007
+
+ 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.
+
+*/
+
+#ifndef _DSDB_REPL_DREPL_SERVICE_H_
+#define _DSDB_REPL_DREPL_SERVICE_H_
+
+struct dreplsrv_service {
+ /* the whole drepl service is in one task */
+ struct task_server *task;
+
+ /* the time the service was started */
+ struct timeval startup_time;
+
+ /*
+ * system session info
+ * with machine account credentials
+ */
+ struct auth_session_info *system_session_info;
+
+ /*
+ * a connection to the local samdb
+ */
+ struct ldb_context *samdb;
+
+ /* some stuff for periodic processing */
+ struct {
+ /*
+ * the interval between to periodic runs
+ */
+ uint32_t interval;
+
+ /*
+ * the timestamp for the next event,
+ * this is the timstamp passed to event_add_timed()
+ */
+ struct timeval next_event;
+
+ /* here we have a reference to the timed event the schedules the periodic stuff */
+ struct timed_event *te;
+ } periodic;
+
+};
+
+#include "dsdb/repl/drepl_service_proto.h"
+
+#endif /* _DSDB_REPL_DREPL_SERVICE_H_ */
git.samba.org / metze / samba / wip.git / commitdiff