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/*
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#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"
#include "param/param.h"
static WERROR dreplsrv_init_creds(struct dreplsrv_service *service)
{
service->system_session_info = system_session(service->task->lp_ctx);
if (service->system_session_info == NULL) {
return WERR_NOMEM;
}
return WERR_OK;
}
static WERROR dreplsrv_connect_samdb(struct dreplsrv_service *service, struct loadparm_context *lp_ctx)
{
const struct GUID *ntds_guid;
struct drsuapi_DsBindInfo28 *bind_info28;
service->samdb = samdb_connect(service, service->task->event_ctx, lp_ctx, service->system_session_info);
if (!service->samdb) {
return WERR_DS_UNAVAILABLE;
}
ntds_guid = samdb_ntds_objectGUID(service->samdb);
if (!ntds_guid) {
return WERR_DS_UNAVAILABLE;
}
service->ntds_guid = *ntds_guid;
bind_info28 = &service->bind_info28;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_BASE;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V5;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7;
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT;
#if 0 /* we don't support XPRESS compression yet */
bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_XPRESS_COMPRESS;
#endif
/* TODO: fill in site_guid */
bind_info28->site_guid = GUID_zero();
/* TODO: find out how this is really triggered! */
bind_info28->pid = 0;
bind_info28->repl_epoch = 0;
return WERR_OK;
}
/*
DsReplicaSync messages from the DRSUAPI server are forwarded here
*/
static NTSTATUS drepl_replica_sync(struct irpc_message *msg,
struct drsuapi_DsReplicaSync *r)
{
struct dreplsrv_service *service = talloc_get_type(msg->private_data,
struct dreplsrv_service);
struct drsuapi_DsReplicaObjectIdentifier *nc = r->in.req->req1.naming_context;
r->out.result = dreplsrv_schedule_partition_pull_by_nc(service, msg, nc);
if (W_ERROR_IS_OK(r->out.result)) {
DEBUG(3,("drepl_replica_sync: forcing sync of partition (%s, %s)\n",
GUID_string(msg, &nc->guid),
nc->dn));
dreplsrv_run_pending_ops(service);
} else {
DEBUG(3,("drepl_replica_sync: failed setup of sync of partition (%s, %s) - %s\n",
GUID_string(msg, &nc->guid),
nc->dn,
win_errstr(r->out.result)));
}
return NT_STATUS_OK;
}
/*
startup the dsdb replicator service task
*/
static void dreplsrv_task_init(struct task_server *task)
{
WERROR status;
struct dreplsrv_service *service;
uint32_t periodic_startup_interval;
bool am_rodc;
int ret;
switch (lpcfg_server_role(task->lp_ctx)) {
case ROLE_STANDALONE:
task_server_terminate(task, "dreplsrv: no DSDB replication required in standalone configuration",
false);
return;
case ROLE_DOMAIN_MEMBER:
task_server_terminate(task, "dreplsrv: no DSDB replication required in domain member configuration",
false);
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", true);
return;
}
service->task = task;
service->startup_time = timeval_current();
task->private_data = 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)), true);
return;
}
status = dreplsrv_connect_samdb(service, task->lp_ctx);
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)), true);
return;
}
status = dreplsrv_load_partitions(service);
if (!W_ERROR_IS_OK(status)) {
task_server_terminate(task, talloc_asprintf(task,
"dreplsrv: Failed to load partitions: %s\n",
win_errstr(status)), true);
return;
}
periodic_startup_interval = lpcfg_parm_int(task->lp_ctx, NULL, "dreplsrv", "periodic_startup_interval", 15); /* in seconds */
service->periodic.interval = lpcfg_parm_int(task->lp_ctx, NULL, "dreplsrv", "periodic_interval", 300); /* in seconds */
status = dreplsrv_periodic_schedule(service, periodic_startup_interval);
if (!W_ERROR_IS_OK(status)) {
task_server_terminate(task, talloc_asprintf(task,
"dreplsrv: Failed to periodic schedule: %s\n",
win_errstr(status)), true);
return;
}
/* if we are a RODC then we do not send DSReplicaSync*/
ret = samdb_rodc(service->samdb, &am_rodc);
if (ret == LDB_SUCCESS && !am_rodc) {
service->notify.interval = lpcfg_parm_int(task->lp_ctx, NULL, "dreplsrv",
"notify_interval", 5); /* in seconds */
status = dreplsrv_notify_schedule(service, service->notify.interval);
if (!W_ERROR_IS_OK(status)) {
task_server_terminate(task, talloc_asprintf(task,
"dreplsrv: Failed to setup notify schedule: %s\n",
win_errstr(status)), true);
return;
}
}
irpc_add_name(task->msg_ctx, "dreplsrv");
IRPC_REGISTER(task->msg_ctx, drsuapi, DRSUAPI_DSREPLICASYNC, drepl_replica_sync, service);
messaging_register(task->msg_ctx, service, MSG_DREPL_ALLOCATE_RID, dreplsrv_allocate_rid);
}
/*
register ourselves as a available server
*/
NTSTATUS server_service_drepl_init(void)
{
return register_server_service("drepl", dreplsrv_task_init);
}
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