source4/dsdb/repl/drepl_service.c

   1 /*
   2    Unix SMB/CIFS mplementation.
   3    DSDB replication service
   4
   5    Copyright (C) Stefan Metzmacher 2007
   6    Copyright (C) Kamen Mazdrashki <kamenim@samba.org> 2010
   7
   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 3 of the License, or
  11    (at your option) any later version.
  12
  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.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 */
  22
  23 #include "includes.h"
  24 #include "dsdb/samdb/samdb.h"
  25 #include "auth/auth.h"
  26 #include "smbd/service.h"
  27 #include "lib/events/events.h"
  28 #include "dsdb/repl/drepl_service.h"
  29 #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 "librpc/gen_ndr/ndr_irpc.h"
  35 #include "param/param.h"
  36 #include "libds/common/roles.h"
  37
  38 #undef DBGC_CLASS
  39 #define DBGC_CLASS            DBGC_DRS_REPL
  40
  41 /**
  42  * Call-back data for _drepl_replica_sync_done_cb()
  43  */
  44 struct drepl_replica_sync_cb_data {
  45         struct irpc_message *msg;
  46         struct drsuapi_DsReplicaSync *r;
  47
  48         /* number of ops left to be completed */
  49         int ops_count;
  50
  51         /* last failure error code */
  52         WERROR werr_last_failure;
  53 };
  54
  55
  56 static WERROR dreplsrv_init_creds(struct dreplsrv_service *service)
  57 {
  58         service->system_session_info = system_session(service->task->lp_ctx);
  59         if (service->system_session_info == NULL) {
  60                 return WERR_NOT_ENOUGH_MEMORY;
  61         }
  62
  63         return WERR_OK;
  64 }
  65
  66 static WERROR dreplsrv_connect_samdb(struct dreplsrv_service *service, struct loadparm_context *lp_ctx)
  67 {
  68         const struct GUID *ntds_guid;
  69         struct drsuapi_DsBindInfo28 *bind_info28;
  70
  71         service->samdb = samdb_connect(service,
  72                                        service->task->event_ctx,
  73                                        lp_ctx,
  74                                        service->system_session_info,
  75                                        NULL,
  76                                        0);
  77         if (!service->samdb) {
  78                 return WERR_DS_UNAVAILABLE;
  79         }
  80
  81         ntds_guid = samdb_ntds_objectGUID(service->samdb);
  82         if (!ntds_guid) {
  83                 return WERR_DS_UNAVAILABLE;
  84         }
  85         service->ntds_guid = *ntds_guid;
  86
  87         if (samdb_rodc(service->samdb, &service->am_rodc) != LDB_SUCCESS) {
  88                 DEBUG(0,(__location__ ": Failed to determine RODC status\n"));
  89                 return WERR_DS_UNAVAILABLE;
  90         }
  91
  92         bind_info28                             = &service->bind_info28;
  93         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_BASE;
  94         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION;
  95         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI;
  96         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2;
  97         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS;
  98         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1;
  99         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION;
 100         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE;
 101         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2;
 102         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION;
 103         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2;
 104         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD;
 105         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND;
 106         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO;
 107         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION;
 108         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01;
 109         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP;
 110         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY;
 111         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3;
 112         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V5;
 113         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2;
 114         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6;
 115         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS;
 116         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8;
 117         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5;
 118         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6;
 119         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3;
 120         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7;
 121         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT;
 122 #if 0 /* we don't support XPRESS compression yet */
 123         bind_info28->supported_extensions       |= DRSUAPI_SUPPORTED_EXTENSION_XPRESS_COMPRESS;
 124 #endif
 125         /* TODO: fill in site_guid */
 126         bind_info28->site_guid                  = GUID_zero();
 127         /* TODO: find out how this is really triggered! */
 128         bind_info28->pid                        = 0;
 129         bind_info28->repl_epoch                 = 0;
 130
 131         return WERR_OK;
 132 }
 133
 134
 135 /**
 136  * Callback for dreplsrv_out_operation operation completion.
 137  *
 138  * We just need to complete a waiting IRPC message here.
 139  * In case pull operation has failed,
 140  * caller of this callback will dump
 141  * failure information.
 142  *
 143  * NOTE: cb_data is allocated in IRPC msg's context
 144  * and will be freed during irpc_send_reply() call.
 145  */
 146 static void _drepl_replica_sync_done_cb(struct dreplsrv_service *service,
 147                                         WERROR werr,
 148                                         enum drsuapi_DsExtendedError ext_err,
 149                                         void *cb_data)
 150 {
 151         struct drepl_replica_sync_cb_data *data = talloc_get_type(cb_data,
 152                                                                   struct drepl_replica_sync_cb_data);
 153         struct irpc_message *msg = data->msg;
 154         struct drsuapi_DsReplicaSync *r = data->r;
 155
 156         /* store last bad result */
 157         if (!W_ERROR_IS_OK(werr)) {
 158                 data->werr_last_failure = werr;
 159         }
 160
 161         /* decrement pending ops count */
 162         data->ops_count--;
 163
 164         if (data->ops_count == 0) {
 165                 /* Return result to client */
 166                 r->out.result = data->werr_last_failure;
 167
 168                 /* complete IRPC message */
 169                 irpc_send_reply(msg, NT_STATUS_OK);
 170         }
 171 }
 172
 173 /**
 174  * Helper to schedule a replication operation with a source DSA.
 175  * If 'data' is valid pointer, then a callback
 176  * for the operation is passed and 'data->msg' is
 177  * marked as 'deferred' - defer_reply = true
 178  */
 179 static WERROR _drepl_schedule_replication(struct dreplsrv_service *service,
 180                                           struct dreplsrv_partition_source_dsa *dsa,
 181                                           struct drsuapi_DsReplicaObjectIdentifier *nc,
 182                                           uint32_t rep_options,
 183                                           struct drepl_replica_sync_cb_data *data,
 184                                           TALLOC_CTX *mem_ctx)
 185 {
 186         WERROR werr;
 187         dreplsrv_extended_callback_t fn_callback = NULL;
 188
 189         if (data) {
 190                 fn_callback = _drepl_replica_sync_done_cb;
 191         }
 192
 193         /* schedule replication item */
 194         werr = dreplsrv_schedule_partition_pull_source(service, dsa, rep_options,
 195                                                        DRSUAPI_EXOP_NONE, 0,
 196                                                        fn_callback, data);
 197         if (!W_ERROR_IS_OK(werr)) {
 198                 DEBUG(0,("%s: failed setup of sync of partition (%s, %s, %s) - %s\n",
 199                          __FUNCTION__,
 200                          GUID_string(mem_ctx, &nc->guid),
 201                          nc->dn,
 202                          dsa->repsFrom1->other_info->dns_name,
 203                          win_errstr(werr)));
 204                 return werr;
 205         }
 206         /* log we've scheduled a replication item */
 207         DEBUG(3,("%s: forcing sync of partition (%s, %s, %s)\n",
 208                  __FUNCTION__,
 209                  GUID_string(mem_ctx, &nc->guid),
 210                  nc->dn,
 211                  dsa->repsFrom1->other_info->dns_name));
 212
 213         /* mark IRPC message as deferred if necessary */
 214         if (data) {
 215                 data->ops_count++;
 216                 data->msg->defer_reply = true;
 217         }
 218
 219         return WERR_OK;
 220 }
 221
 222 /*
 223   DsReplicaSync messages from the DRSUAPI server are forwarded here
 224  */
 225 static NTSTATUS drepl_replica_sync(struct irpc_message *msg,
 226                                    struct drsuapi_DsReplicaSync *r)
 227 {
 228         WERROR werr;
 229         struct dreplsrv_partition *p;
 230         struct drepl_replica_sync_cb_data *cb_data;
 231         struct dreplsrv_partition_source_dsa *dsa;
 232         struct drsuapi_DsReplicaSyncRequest1 *req1;
 233         struct drsuapi_DsReplicaObjectIdentifier *nc;
 234         struct dreplsrv_service *service = talloc_get_type(msg->private_data,
 235                                                            struct dreplsrv_service);
 236
 237 #define REPLICA_SYNC_FAIL(_msg, _werr) do {\
 238                 if (!W_ERROR_IS_OK(_werr)) { \
 239                         DEBUG(0,(__location__ ": Failure - %s. werr = %s\n", \
 240                                  _msg, win_errstr(_werr))); \
 241                         NDR_PRINT_IN_DEBUG(drsuapi_DsReplicaSync, r); \
 242                 } \
 243                 r->out.result = _werr; \
 244                 goto done;\
 245         } while(0)
 246
 247
 248         if (r->in.level != 1) {
 249                 REPLICA_SYNC_FAIL("Unsupported level",
 250                                   WERR_DS_DRA_INVALID_PARAMETER);
 251         }
 252
 253         req1 = &r->in.req->req1;
 254         nc   = req1->naming_context;
 255
 256         /* Check input parameters */
 257         if (!nc) {
 258                 REPLICA_SYNC_FAIL("Invalid Naming Context",
 259                                   WERR_DS_DRA_INVALID_PARAMETER);
 260         }
 261
 262         /* Find Naming context to be synchronized */
 263         werr = dreplsrv_partition_find_for_nc(service,
 264                                               &nc->guid, &nc->sid, nc->dn,
 265                                               &p);
 266         if (!W_ERROR_IS_OK(werr)) {
 267                 REPLICA_SYNC_FAIL("Failed to find requested Naming Context",
 268                                   werr);
 269         }
 270
 271         /* should we process it asynchronously? */
 272         if (req1->options & DRSUAPI_DRS_ASYNC_OP) {
 273                 cb_data = NULL;
 274         } else {
 275                 cb_data = talloc_zero(msg, struct drepl_replica_sync_cb_data);
 276                 if (!cb_data) {
 277                         REPLICA_SYNC_FAIL("Not enough memory",
 278                                           WERR_DS_DRA_INTERNAL_ERROR);
 279                 }
 280
 281                 cb_data->msg = msg;
 282                 cb_data->r   = r;
 283                 cb_data->werr_last_failure = WERR_OK;
 284         }
 285
 286         /* collect source DSAs to sync with */
 287         if (req1->options & DRSUAPI_DRS_SYNC_ALL) {
 288                 for (dsa = p->sources; dsa; dsa = dsa->next) {
 289                         /* schedule replication item */
 290                         werr = _drepl_schedule_replication(service, dsa, nc,
 291                                                            req1->options, cb_data, msg);
 292                         if (!W_ERROR_IS_OK(werr)) {
 293                                 REPLICA_SYNC_FAIL("_drepl_schedule_replication() failed",
 294                                                   werr);
 295                         }
 296                 }
 297         } else {
 298                 if (req1->options & DRSUAPI_DRS_SYNC_BYNAME) {
 299                         /* client should pass at least valid string */
 300                         if (!req1->source_dsa_dns) {
 301                                 REPLICA_SYNC_FAIL("'source_dsa_dns' is not valid",
 302                                                   WERR_DS_DRA_INVALID_PARAMETER);
 303                         }
 304
 305                         werr = dreplsrv_partition_source_dsa_by_dns(p,
 306                                                                     req1->source_dsa_dns,
 307                                                                     &dsa);
 308                 } else {
 309                         /* client should pass at least some GUID */
 310                         if (GUID_all_zero(&req1->source_dsa_guid)) {
 311                                 REPLICA_SYNC_FAIL("'source_dsa_guid' is not valid",
 312                                                   WERR_DS_DRA_INVALID_PARAMETER);
 313                         }
 314
 315                         werr = dreplsrv_partition_source_dsa_by_guid(p,
 316                                                                      &req1->source_dsa_guid,
 317                                                                      &dsa);
 318                         if (W_ERROR_EQUAL(werr, WERR_DS_DRA_NO_REPLICA)) {
 319                                 /* we don't have this source setup as
 320                                    a replication partner. Create a
 321                                    temporary dsa structure for this
 322                                    replication */
 323                                 werr = dreplsrv_partition_source_dsa_temporary(p,
 324                                                                                msg,
 325                                                                                &req1->source_dsa_guid,
 326                                                                                &dsa);
 327                         }
 328                 }
 329                 if (!W_ERROR_IS_OK(werr)) {
 330                         REPLICA_SYNC_FAIL("Failed to locate source DSA for given NC",
 331                                           werr);
 332                 }
 333
 334                 /* schedule replication item */
 335                 werr = _drepl_schedule_replication(service, dsa, nc,
 336                                                    req1->options, cb_data, msg);
 337                 if (!W_ERROR_IS_OK(werr)) {
 338                         REPLICA_SYNC_FAIL("_drepl_schedule_replication() failed",
 339                                           werr);
 340                 }
 341         }
 342
 343         /* if we got here, everything is OK */
 344         r->out.result = WERR_OK;
 345
 346         /*
 347          * schedule replication event to force
 348          * replication as soon as possible
 349          */
 350         dreplsrv_pendingops_schedule_pull_now(service);
 351
 352 done:
 353         return NT_STATUS_OK;
 354 }
 355
 356 /**
 357  * Called when drplsrv should refresh its state.
 358  * For example, when KCC change topology, dreplsrv
 359  * should update its cache
 360  *
 361  * @param partition_dn If not empty/NULL, partition to update
 362  */
 363 static NTSTATUS dreplsrv_refresh(struct irpc_message *msg,
 364                                  struct dreplsrv_refresh *r)
 365 {
 366         struct dreplsrv_service *s = talloc_get_type(msg->private_data,
 367                                                      struct dreplsrv_service);
 368
 369         r->out.result = dreplsrv_refresh_partitions(s);
 370
 371         return NT_STATUS_OK;
 372 }
 373
 374 /**
 375  * Called when the auth code wants us to try and replicate
 376  * a users secrets
 377  */
 378 static NTSTATUS drepl_trigger_repl_secret(struct irpc_message *msg,
 379                                           struct drepl_trigger_repl_secret *r)
 380 {
 381         struct dreplsrv_service *service = talloc_get_type(msg->private_data,
 382                                                            struct dreplsrv_service);
 383
 384
 385         drepl_repl_secret(service, r->in.user_dn);
 386
 387         /* we are not going to be sending a reply to this request */
 388         msg->no_reply = true;
 389
 390         return NT_STATUS_OK;
 391 }
 392
 393
 394 /*
 395   DsReplicaAdd messages from the DRSUAPI server are forwarded here
 396  */
 397 static NTSTATUS dreplsrv_replica_add(struct irpc_message *msg,
 398                                   struct drsuapi_DsReplicaAdd *r)
 399 {
 400         struct dreplsrv_service *service = talloc_get_type(msg->private_data,
 401                                                            struct dreplsrv_service);
 402         return drepl_replica_add(service, r);
 403 }
 404
 405 /*
 406   DsReplicaDel messages from the DRSUAPI server are forwarded here
 407  */
 408 static NTSTATUS dreplsrv_replica_del(struct irpc_message *msg,
 409                                   struct drsuapi_DsReplicaDel *r)
 410 {
 411         struct dreplsrv_service *service = talloc_get_type(msg->private_data,
 412                                                            struct dreplsrv_service);
 413         return drepl_replica_del(service, r);
 414 }
 415
 416 /*
 417   DsReplicaMod messages from the DRSUAPI server are forwarded here
 418  */
 419 static NTSTATUS dreplsrv_replica_mod(struct irpc_message *msg,
 420                                   struct drsuapi_DsReplicaMod *r)
 421 {
 422         struct dreplsrv_service *service = talloc_get_type(msg->private_data,
 423                                                            struct dreplsrv_service);
 424         return drepl_replica_mod(service, r);
 425 }
 426
 427
 428 /*
 429   startup the dsdb replicator service task
 430 */
 431 static void dreplsrv_task_init(struct task_server *task)
 432 {
 433         WERROR status;
 434         struct dreplsrv_service *service;
 435         uint32_t periodic_startup_interval;
 436
 437         switch (lpcfg_server_role(task->lp_ctx)) {
 438         case ROLE_STANDALONE:
 439                 task_server_terminate(task, "dreplsrv: no DSDB replication required in standalone configuration",
 440                                       false);
 441                 return;
 442         case ROLE_DOMAIN_MEMBER:
 443                 task_server_terminate(task, "dreplsrv: no DSDB replication required in domain member configuration",
 444                                       false);
 445                 return;
 446         case ROLE_ACTIVE_DIRECTORY_DC:
 447                 /* Yes, we want DSDB replication */
 448                 break;
 449         }
 450
 451         task_server_set_title(task, "task[dreplsrv]");
 452
 453         service = talloc_zero(task, struct dreplsrv_service);
 454         if (!service) {
 455                 task_server_terminate(task, "dreplsrv_task_init: out of memory", true);
 456                 return;
 457         }
 458         service->task           = task;
 459         service->startup_time   = timeval_current();
 460         task->private_data      = service;
 461
 462         status = dreplsrv_init_creds(service);
 463         if (!W_ERROR_IS_OK(status)) {
 464                 task_server_terminate(task, talloc_asprintf(task,
 465                                       "dreplsrv: Failed to obtain server credentials: %s\n",
 466                                                             win_errstr(status)), true);
 467                 return;
 468         }
 469
 470         status = dreplsrv_connect_samdb(service, task->lp_ctx);
 471         if (!W_ERROR_IS_OK(status)) {
 472                 task_server_terminate(task, talloc_asprintf(task,
 473                                       "dreplsrv: Failed to connect to local samdb: %s\n",
 474                                                             win_errstr(status)), true);
 475                 return;
 476         }
 477
 478         status = dreplsrv_load_partitions(service);
 479         if (!W_ERROR_IS_OK(status)) {
 480                 task_server_terminate(task, talloc_asprintf(task,
 481                                       "dreplsrv: Failed to load partitions: %s\n",
 482                                                             win_errstr(status)), true);
 483                 return;
 484         }
 485
 486         periodic_startup_interval       = lpcfg_parm_int(task->lp_ctx, NULL, "dreplsrv", "periodic_startup_interval", 15); /* in seconds */
 487         service->periodic.interval      = lpcfg_parm_int(task->lp_ctx, NULL, "dreplsrv", "periodic_interval", 300); /* in seconds */
 488
 489         status = dreplsrv_periodic_schedule(service, periodic_startup_interval);
 490         if (!W_ERROR_IS_OK(status)) {
 491                 task_server_terminate(task, talloc_asprintf(task,
 492                                       "dreplsrv: Failed to periodic schedule: %s\n",
 493                                                             win_errstr(status)), true);
 494                 return;
 495         }
 496
 497         service->pending.im = tevent_create_immediate(service);
 498         if (service->pending.im == NULL) {
 499                 task_server_terminate(task,
 500                                       "dreplsrv: Failed to create immediate "
 501                                       "task for future DsReplicaSync\n",
 502                                       true);
 503                 return;
 504         }
 505
 506         /* if we are a RODC then we do not send DSReplicaSync*/
 507         if (!service->am_rodc) {
 508                 service->notify.interval = lpcfg_parm_int(task->lp_ctx, NULL, "dreplsrv",
 509                                                            "notify_interval", 5); /* in seconds */
 510                 status = dreplsrv_notify_schedule(service, service->notify.interval);
 511                 if (!W_ERROR_IS_OK(status)) {
 512                         task_server_terminate(task, talloc_asprintf(task,
 513                                                   "dreplsrv: Failed to setup notify schedule: %s\n",
 514                                                                         win_errstr(status)), true);
 515                         return;
 516                 }
 517         }
 518
 519         irpc_add_name(task->msg_ctx, "dreplsrv");
 520
 521         IRPC_REGISTER(task->msg_ctx, irpc, DREPLSRV_REFRESH, dreplsrv_refresh, service);
 522         IRPC_REGISTER(task->msg_ctx, drsuapi, DRSUAPI_DSREPLICASYNC, drepl_replica_sync, service);
 523         IRPC_REGISTER(task->msg_ctx, drsuapi, DRSUAPI_DSREPLICAADD, dreplsrv_replica_add, service);
 524         IRPC_REGISTER(task->msg_ctx, drsuapi, DRSUAPI_DSREPLICADEL, dreplsrv_replica_del, service);
 525         IRPC_REGISTER(task->msg_ctx, drsuapi, DRSUAPI_DSREPLICAMOD, dreplsrv_replica_mod, service);
 526         IRPC_REGISTER(task->msg_ctx, irpc, DREPL_TAKEFSMOROLE, drepl_take_FSMO_role, service);
 527         IRPC_REGISTER(task->msg_ctx, irpc, DREPL_TRIGGER_REPL_SECRET, drepl_trigger_repl_secret, service);
 528         imessaging_register(task->msg_ctx, service, MSG_DREPL_ALLOCATE_RID, dreplsrv_allocate_rid);
 529 }
 530
 531 /*
 532   register ourselves as a available server
 533 */
 534 NTSTATUS server_service_drepl_init(TALLOC_CTX *ctx)
 535 {
 536         static const struct service_details details = {
 537                 .inhibit_fork_on_accept = true,
 538                 .inhibit_pre_fork = true,
 539         };
 540         return register_server_service(ctx, "drepl",  dreplsrv_task_init,
 541                                        &details);
 542 }