1/* 2 Unix SMB/CIFS mplementation. 3 DSDB replication service 4 5 Copyright (C) Stefan Metzmacher 2007 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. 19 20*/ 21 22#include "includes.h" 23#include "dsdb/samdb/samdb.h" 24#include "auth/auth.h" 25#include "smbd/service.h" 26#include "lib/events/events.h" 27#include "lib/messaging/irpc.h" 28#include "dsdb/repl/drepl_service.h" 29#include "lib/ldb/include/ldb_errors.h" 30#include "../lib/util/dlinklist.h" 31#include "librpc/gen_ndr/ndr_misc.h" 32#include "librpc/gen_ndr/ndr_drsuapi.h" 33#include "librpc/gen_ndr/ndr_drsblobs.h" 34#include "param/param.h" 35 36static WERROR dreplsrv_init_creds(struct dreplsrv_service *service) 37{ 38 NTSTATUS status; 39 40 status = auth_system_session_info(service, service->task->lp_ctx, 41 &service->system_session_info); 42 if (!NT_STATUS_IS_OK(status)) { 43 return ntstatus_to_werror(status); 44 } 45 46 return WERR_OK; 47} 48 49static WERROR dreplsrv_connect_samdb(struct dreplsrv_service *service, struct loadparm_context *lp_ctx) 50{ 51 const struct GUID *ntds_guid; 52 struct drsuapi_DsBindInfo28 *bind_info28; 53 54 service->samdb = samdb_connect(service, service->task->event_ctx, lp_ctx, service->system_session_info); 55 if (!service->samdb) { 56 return WERR_DS_UNAVAILABLE; 57 } 58 59 ntds_guid = samdb_ntds_objectGUID(service->samdb); 60 if (!ntds_guid) { 61 return WERR_DS_UNAVAILABLE; 62 } 63 64 service->ntds_guid = *ntds_guid; 65 66 bind_info28 = &service->bind_info28; 67 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_BASE; 68 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION; 69 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI; 70 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2; 71 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS; 72 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1; 73 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION; 74 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE; 75 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2; 76 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION; 77 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2; 78 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD; 79 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND; 80 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO; 81 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION; 82 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01; 83 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP; 84 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY; 85 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3; 86 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_00100000; 87 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2; 88 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6; 89 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS; 90 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8; 91 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5; 92 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6; 93 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3; 94 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7; 95 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT; 96#if 0 /* we don't support XPRESS compression yet */ 97 bind_info28->supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_XPRESS_COMPRESS; 98#endif 99 /* TODO: fill in site_guid */ 100 bind_info28->site_guid = GUID_zero(); 101 /* TODO: find out how this is really triggered! */ 102 bind_info28->pid = 0; 103 bind_info28->repl_epoch = 0; 104 105 return WERR_OK; 106} 107 108/* 109 DsReplicaSync messages from the DRSUAPI server are forwarded here 110 */ 111static NTSTATUS drepl_replica_sync(struct irpc_message *msg, 112 struct drsuapi_DsReplicaSync *r) 113{ 114 struct dreplsrv_service *service = talloc_get_type(msg->private_data, 115 struct dreplsrv_service); 116 struct GUID *guid = &r->in.req.req1.naming_context->guid; 117 118 r->out.result = dreplsrv_schedule_partition_pull_by_guid(service, msg, guid); 119 if (W_ERROR_IS_OK(r->out.result)) { 120 DEBUG(3,("drepl_replica_sync: forcing sync of partition %s\n", 121 GUID_string(msg, guid))); 122 dreplsrv_run_pending_ops(service); 123 } else { 124 DEBUG(3,("drepl_replica_sync: failed setup of sync of partition %s - %s\n", 125 GUID_string(msg, guid), win_errstr(r->out.result))); 126 } 127 return NT_STATUS_OK; 128} 129 130/* 131 startup the dsdb replicator service task 132*/ 133static void dreplsrv_task_init(struct task_server *task) 134{ 135 WERROR status; 136 struct dreplsrv_service *service; 137 uint32_t periodic_startup_interval; 138 139 switch (lp_server_role(task->lp_ctx)) { 140 case ROLE_STANDALONE: 141 task_server_terminate(task, "dreplsrv: no DSDB replication required in standalone configuration", 142 false); 143 return; 144 case ROLE_DOMAIN_MEMBER: 145 task_server_terminate(task, "dreplsrv: no DSDB replication required in domain member configuration", 146 false); 147 return; 148 case ROLE_DOMAIN_CONTROLLER: 149 /* Yes, we want DSDB replication */ 150 break; 151 } 152 153 task_server_set_title(task, "task[dreplsrv]"); 154 155 service = talloc_zero(task, struct dreplsrv_service); 156 if (!service) { 157 task_server_terminate(task, "dreplsrv_task_init: out of memory", true); 158 return; 159 } 160 service->task = task; 161 service->startup_time = timeval_current(); 162 task->private_data = service; 163 164 status = dreplsrv_init_creds(service); 165 if (!W_ERROR_IS_OK(status)) { 166 task_server_terminate(task, talloc_asprintf(task, 167 "dreplsrv: Failed to obtain server credentials: %s\n", 168 win_errstr(status)), true); 169 return; 170 } 171 172 status = dreplsrv_connect_samdb(service, task->lp_ctx); 173 if (!W_ERROR_IS_OK(status)) { 174 task_server_terminate(task, talloc_asprintf(task, 175 "dreplsrv: Failed to connect to local samdb: %s\n", 176 win_errstr(status)), true); 177 return; 178 } 179 180 status = dreplsrv_load_partitions(service); 181 if (!W_ERROR_IS_OK(status)) { 182 task_server_terminate(task, talloc_asprintf(task, 183 "dreplsrv: Failed to load partitions: %s\n", 184 win_errstr(status)), true); 185 return; 186 } 187 188 periodic_startup_interval = lp_parm_int(task->lp_ctx, NULL, "dreplsrv", "periodic_startup_interval", 15); /* in seconds */ 189 service->periodic.interval = lp_parm_int(task->lp_ctx, NULL, "dreplsrv", "periodic_interval", 300); /* in seconds */ 190 191 status = dreplsrv_periodic_schedule(service, periodic_startup_interval); 192 if (!W_ERROR_IS_OK(status)) { 193 task_server_terminate(task, talloc_asprintf(task, 194 "dreplsrv: Failed to periodic schedule: %s\n", 195 win_errstr(status)), true); 196 return; 197 } 198 199 service->notify.interval = lp_parm_int(task->lp_ctx, NULL, "dreplsrv", 200 "notify_interval", 5); /* in seconds */ 201 status = dreplsrv_notify_schedule(service, service->notify.interval); 202 if (!W_ERROR_IS_OK(status)) { 203 task_server_terminate(task, talloc_asprintf(task, 204 "dreplsrv: Failed to setup notify schedule: %s\n", 205 win_errstr(status)), true); 206 return; 207 } 208 209 irpc_add_name(task->msg_ctx, "dreplsrv"); 210 211 IRPC_REGISTER(task->msg_ctx, drsuapi, DRSUAPI_DSREPLICASYNC, drepl_replica_sync, service); 212} 213 214/* 215 register ourselves as a available server 216*/ 217NTSTATUS server_service_drepl_init(void) 218{ 219 return register_server_service("drepl", dreplsrv_task_init); 220} 221