source4/ldap_server/ldap_server.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    LDAP server
   5
   6    Copyright (C) Andrew Tridgell 2005
   7    Copyright (C) Volker Lendecke 2004
   8    Copyright (C) Stefan Metzmacher 2004
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25 #include "lib/events/events.h"
  26 #include "auth/auth.h"
  27 #include "auth/credentials/credentials.h"
  28 #include "librpc/gen_ndr/ndr_samr.h"
  29 #include "../lib/util/dlinklist.h"
  30 #include "../lib/util/asn1.h"
  31 #include "ldap_server/ldap_server.h"
  32 #include "smbd/service_task.h"
  33 #include "smbd/service_stream.h"
  34 #include "smbd/service.h"
  35 #include "smbd/process_model.h"
  36 #include "lib/tls/tls.h"
  37 #include "lib/messaging/irpc.h"
  38 #include "lib/ldb/include/ldb.h"
  39 #include "lib/ldb/include/ldb_errors.h"
  40 #include "libcli/ldap/ldap.h"
  41 #include "libcli/ldap/ldap_proto.h"
  42 #include "system/network.h"
  43 #include "lib/socket/netif.h"
  44 #include "dsdb/samdb/samdb.h"
  45 #include "param/param.h"
  46 /*
  47   close the socket and shutdown a server_context
  48 */
  49 void ldapsrv_terminate_connection(struct ldapsrv_connection *conn,
  50                                          const char *reason)
  51 {
  52         packet_recv_disable(conn->packet);
  53         TALLOC_FREE(conn->packet);
  54         stream_terminate_connection(conn->connection, reason);
  55 }
  56
  57 /*
  58   handle packet errors
  59 */
  60 static void ldapsrv_error_handler(void *private_data, NTSTATUS status)
  61 {
  62         struct ldapsrv_connection *conn = talloc_get_type(private_data,
  63                                                           struct ldapsrv_connection);
  64         ldapsrv_terminate_connection(conn, nt_errstr(status));
  65 }
  66
  67 /*
  68   process a decoded ldap message
  69 */
  70 static void ldapsrv_process_message(struct ldapsrv_connection *conn,
  71                                     struct ldap_message *msg)
  72 {
  73         struct ldapsrv_call *call;
  74         NTSTATUS status;
  75         DATA_BLOB blob;
  76
  77         call = talloc(conn, struct ldapsrv_call);
  78         if (!call) {
  79                 ldapsrv_terminate_connection(conn, "no memory");
  80                 return;
  81         }
  82
  83         call->request = talloc_steal(call, msg);
  84         call->conn = conn;
  85         call->replies = NULL;
  86         call->send_callback = NULL;
  87         call->send_private = NULL;
  88
  89         /* make the call */
  90         status = ldapsrv_do_call(call);
  91         if (!NT_STATUS_IS_OK(status)) {
  92                 talloc_free(call);
  93                 return;
  94         }
  95
  96         blob = data_blob(NULL, 0);
  97
  98         if (call->replies == NULL) {
  99                 talloc_free(call);
 100                 return;
 101         }
 102
 103         /* build all the replies into a single blob */
 104         while (call->replies) {
 105                 DATA_BLOB b;
 106                 bool ret;
 107
 108                 msg = call->replies->msg;
 109                 if (!ldap_encode(msg, samba_ldap_control_handlers(), &b, call)) {
 110                         DEBUG(0,("Failed to encode ldap reply of type %d\n", msg->type));
 111                         talloc_free(call);
 112                         return;
 113                 }
 114
 115                 ret = data_blob_append(call, &blob, b.data, b.length);
 116                 data_blob_free(&b);
 117
 118                 talloc_set_name_const(blob.data, "Outgoing, encoded LDAP packet");
 119
 120                 if (!ret) {
 121                         talloc_free(call);
 122                         return;
 123                 }
 124
 125                 DLIST_REMOVE(call->replies, call->replies);
 126         }
 127
 128         packet_send_callback(conn->packet, blob,
 129                              call->send_callback, call->send_private);
 130         talloc_free(call);
 131         return;
 132 }
 133
 134 /*
 135   decode/process data
 136 */
 137 static NTSTATUS ldapsrv_decode(void *private_data, DATA_BLOB blob)
 138 {
 139         NTSTATUS status;
 140         struct ldapsrv_connection *conn = talloc_get_type(private_data,
 141                                                           struct ldapsrv_connection);
 142         struct asn1_data *asn1 = asn1_init(conn);
 143         struct ldap_message *msg = talloc(conn, struct ldap_message);
 144
 145         if (asn1 == NULL || msg == NULL) {
 146                 return NT_STATUS_NO_MEMORY;
 147         }
 148
 149         if (!asn1_load(asn1, blob)) {
 150                 talloc_free(msg);
 151                 talloc_free(asn1);
 152                 return NT_STATUS_NO_MEMORY;
 153         }
 154
 155         status = ldap_decode(asn1, samba_ldap_control_handlers(), msg);
 156         if (!NT_STATUS_IS_OK(status)) {
 157                 asn1_free(asn1);
 158                 return status;
 159         }
 160
 161         data_blob_free(&blob);
 162         talloc_steal(conn, msg);
 163         asn1_free(asn1);
 164
 165         ldapsrv_process_message(conn, msg);
 166         return NT_STATUS_OK;
 167 }
 168
 169 /*
 170  Idle timeout handler
 171 */
 172 static void ldapsrv_conn_idle_timeout(struct tevent_context *ev,
 173                                       struct tevent_timer *te,
 174                                       struct timeval t,
 175                                       void *private_data)
 176 {
 177         struct ldapsrv_connection *conn = talloc_get_type(private_data, struct ldapsrv_connection);
 178
 179         ldapsrv_terminate_connection(conn, "Timeout. No requests after bind");
 180 }
 181
 182 /*
 183   called when a LDAP socket becomes readable
 184 */
 185 void ldapsrv_recv(struct stream_connection *c, uint16_t flags)
 186 {
 187         struct ldapsrv_connection *conn =
 188                 talloc_get_type(c->private_data, struct ldapsrv_connection);
 189
 190         if (conn->limits.ite) { /* clean initial timeout if any */
 191                 talloc_free(conn->limits.ite);
 192                 conn->limits.ite = NULL;
 193         }
 194
 195         if (conn->limits.te) { /* clean idle timeout if any */
 196                 talloc_free(conn->limits.te);
 197                 conn->limits.te = NULL;
 198         }
 199
 200         packet_recv(conn->packet);
 201
 202         /* set idle timeout */
 203         conn->limits.te = event_add_timed(c->event.ctx, conn,
 204                                            timeval_current_ofs(conn->limits.conn_idle_time, 0),
 205                                            ldapsrv_conn_idle_timeout, conn);
 206 }
 207
 208 /*
 209   called when a LDAP socket becomes writable
 210 */
 211 static void ldapsrv_send(struct stream_connection *c, uint16_t flags)
 212 {
 213         struct ldapsrv_connection *conn =
 214                 talloc_get_type(c->private_data, struct ldapsrv_connection);
 215
 216         packet_queue_run(conn->packet);
 217 }
 218
 219 static void ldapsrv_conn_init_timeout(struct tevent_context *ev,
 220                                       struct tevent_timer *te,
 221                                       struct timeval t,
 222                                       void *private_data)
 223 {
 224         struct ldapsrv_connection *conn = talloc_get_type(private_data, struct ldapsrv_connection);
 225
 226         ldapsrv_terminate_connection(conn, "Timeout. No requests after initial connection");
 227 }
 228
 229 static int ldapsrv_load_limits(struct ldapsrv_connection *conn)
 230 {
 231         TALLOC_CTX *tmp_ctx;
 232         const char *attrs[] = { "configurationNamingContext", NULL };
 233         const char *attrs2[] = { "lDAPAdminLimits", NULL };
 234         struct ldb_message_element *el;
 235         struct ldb_result *res = NULL;
 236         struct ldb_dn *basedn;
 237         struct ldb_dn *conf_dn;
 238         struct ldb_dn *policy_dn;
 239         int i,ret;
 240
 241         /* set defaults limits in case of failure */
 242         conn->limits.initial_timeout = 120;
 243         conn->limits.conn_idle_time = 900;
 244         conn->limits.max_page_size = 1000;
 245         conn->limits.search_timeout = 120;
 246
 247
 248         tmp_ctx = talloc_new(conn);
 249         if (tmp_ctx == NULL) {
 250                 return -1;
 251         }
 252
 253         basedn = ldb_dn_new(tmp_ctx, conn->ldb, NULL);
 254         if ( ! ldb_dn_validate(basedn)) {
 255                 goto failed;
 256         }
 257
 258         ret = ldb_search(conn->ldb, tmp_ctx, &res, basedn, LDB_SCOPE_BASE, attrs, NULL);
 259         if (ret != LDB_SUCCESS) {
 260                 goto failed;
 261         }
 262
 263         if (res->count != 1) {
 264                 goto failed;
 265         }
 266
 267         conf_dn = ldb_msg_find_attr_as_dn(conn->ldb, tmp_ctx, res->msgs[0], "configurationNamingContext");
 268         if (conf_dn == NULL) {
 269                 goto failed;
 270         }
 271
 272         policy_dn = ldb_dn_copy(tmp_ctx, conf_dn);
 273         ldb_dn_add_child_fmt(policy_dn, "CN=Default Query Policy,CN=Query-Policies,CN=Directory Service,CN=Windows NT,CN=Services");
 274         if (policy_dn == NULL) {
 275                 goto failed;
 276         }
 277
 278         ret = ldb_search(conn->ldb, tmp_ctx, &res, policy_dn, LDB_SCOPE_BASE, attrs2, NULL);
 279         if (ret != LDB_SUCCESS) {
 280                 goto failed;
 281         }
 282
 283         if (res->count != 1) {
 284                 goto failed;
 285         }
 286
 287         el = ldb_msg_find_element(res->msgs[0], "lDAPAdminLimits");
 288         if (el == NULL) {
 289                 goto failed;
 290         }
 291
 292         for (i = 0; i < el->num_values; i++) {
 293                 char policy_name[256];
 294                 int policy_value, s;
 295
 296                 s = sscanf((const char *)el->values[i].data, "%255[^=]=%d", policy_name, &policy_value);
 297                 if (ret != 2 || policy_value == 0)
 298                         continue;
 299
 300                 if (strcasecmp("InitRecvTimeout", policy_name) == 0) {
 301                         conn->limits.initial_timeout = policy_value;
 302                         continue;
 303                 }
 304                 if (strcasecmp("MaxConnIdleTime", policy_name) == 0) {
 305                         conn->limits.conn_idle_time = policy_value;
 306                         continue;
 307                 }
 308                 if (strcasecmp("MaxPageSize", policy_name) == 0) {
 309                         conn->limits.max_page_size = policy_value;
 310                         continue;
 311                 }
 312                 if (strcasecmp("MaxQueryDuration", policy_name) == 0) {
 313                         conn->limits.search_timeout = policy_value;
 314                         continue;
 315                 }
 316         }
 317
 318         return 0;
 319
 320 failed:
 321         DEBUG(0, ("Failed to load ldap server query policies\n"));
 322         talloc_free(tmp_ctx);
 323         return -1;
 324 }
 325
 326 /*
 327   initialise a server_context from a open socket and register a event handler
 328   for reading from that socket
 329 */
 330 static void ldapsrv_accept(struct stream_connection *c,
 331                            struct auth_session_info *session_info)
 332 {
 333         struct ldapsrv_service *ldapsrv_service =
 334                 talloc_get_type(c->private_data, struct ldapsrv_service);
 335         struct ldapsrv_connection *conn;
 336         struct cli_credentials *server_credentials;
 337         struct socket_address *socket_address;
 338         NTSTATUS status;
 339         int port;
 340
 341         conn = talloc_zero(c, struct ldapsrv_connection);
 342         if (!conn) {
 343                 stream_terminate_connection(c, "ldapsrv_accept: out of memory");
 344                 return;
 345         }
 346
 347         conn->packet      = NULL;
 348         conn->connection  = c;
 349         conn->service     = ldapsrv_service;
 350         conn->sockets.raw = c->socket;
 351         conn->lp_ctx      = ldapsrv_service->task->lp_ctx;
 352
 353         c->private_data   = conn;
 354
 355         socket_address = socket_get_my_addr(c->socket, conn);
 356         if (!socket_address) {
 357                 ldapsrv_terminate_connection(conn, "ldapsrv_accept: failed to obtain local socket address!");
 358                 return;
 359         }
 360         port = socket_address->port;
 361         talloc_free(socket_address);
 362
 363         if (port == 636) {
 364                 struct socket_context *tls_socket = tls_init_server(ldapsrv_service->tls_params, c->socket,
 365                                                                     c->event.fde, NULL);
 366                 if (!tls_socket) {
 367                         ldapsrv_terminate_connection(conn, "ldapsrv_accept: tls_init_server() failed");
 368                         return;
 369                 }
 370                 talloc_steal(c, tls_socket);
 371                 c->socket = tls_socket;
 372                 conn->sockets.tls = tls_socket;
 373
 374         } else if (port == 3268) /* Global catalog */ {
 375                 conn->global_catalog = true;
 376         }
 377         conn->packet = packet_init(conn);
 378         if (conn->packet == NULL) {
 379                 ldapsrv_terminate_connection(conn, "out of memory");
 380                 return;
 381         }
 382
 383         packet_set_private(conn->packet, conn);
 384         packet_set_socket(conn->packet, c->socket);
 385         packet_set_callback(conn->packet, ldapsrv_decode);
 386         packet_set_full_request(conn->packet, ldap_full_packet);
 387         packet_set_error_handler(conn->packet, ldapsrv_error_handler);
 388         packet_set_event_context(conn->packet, c->event.ctx);
 389         packet_set_fde(conn->packet, c->event.fde);
 390         packet_set_serialise(conn->packet);
 391
 392         if (conn->sockets.tls) {
 393                 packet_set_unreliable_select(conn->packet);
 394         }
 395
 396         /* Ensure we don't get packets until the database is ready below */
 397         packet_recv_disable(conn->packet);
 398
 399         server_credentials = cli_credentials_init(conn);
 400         if (!server_credentials) {
 401                 stream_terminate_connection(c, "Failed to init server credentials\n");
 402                 return;
 403         }
 404
 405         cli_credentials_set_conf(server_credentials, conn->lp_ctx);
 406         status = cli_credentials_set_machine_account(server_credentials, conn->lp_ctx);
 407         if (!NT_STATUS_IS_OK(status)) {
 408                 stream_terminate_connection(c, talloc_asprintf(conn, "Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status)));
 409                 return;
 410         }
 411         conn->server_credentials = server_credentials;
 412
 413         conn->session_info = talloc_move(conn, &session_info);
 414
 415         if (!NT_STATUS_IS_OK(ldapsrv_backend_Init(conn))) {
 416                 ldapsrv_terminate_connection(conn, "backend Init failed");
 417                 return;
 418         }
 419
 420         /* load limits from the conf partition */
 421         ldapsrv_load_limits(conn); /* should we fail on error ? */
 422
 423         /* register the server */
 424         irpc_add_name(c->msg_ctx, "ldap_server");
 425
 426         /* set connections limits */
 427         conn->limits.ite = event_add_timed(c->event.ctx, conn,
 428                                            timeval_current_ofs(conn->limits.initial_timeout, 0),
 429                                            ldapsrv_conn_init_timeout, conn);
 430
 431         packet_recv_enable(conn->packet);
 432
 433 }
 434
 435 static void ldapsrv_accept_nonpriv(struct stream_connection *c)
 436 {
 437         struct ldapsrv_service *ldapsrv_service = talloc_get_type_abort(
 438                 c->private_data, struct ldapsrv_service);
 439         struct auth_session_info *session_info;
 440         NTSTATUS status;
 441
 442         status = auth_anonymous_session_info(
 443                 c, c->event.ctx, ldapsrv_service->task->lp_ctx, &session_info);
 444         if (!NT_STATUS_IS_OK(status)) {
 445                 stream_terminate_connection(c, "failed to setup anonymous "
 446                                             "session info");
 447                 return;
 448         }
 449         ldapsrv_accept(c, session_info);
 450 }
 451
 452 static const struct stream_server_ops ldap_stream_nonpriv_ops = {
 453         .name                   = "ldap",
 454         .accept_connection      = ldapsrv_accept_nonpriv,
 455         .recv_handler           = ldapsrv_recv,
 456         .send_handler           = ldapsrv_send,
 457 };
 458
 459 /* The feature removed behind an #ifdef until we can do it properly
 460  * with an EXTERNAL bind. */
 461
 462 #define WITH_LDAPI_PRIV_SOCKET
 463
 464 #ifdef WITH_LDAPI_PRIV_SOCKET
 465 static void ldapsrv_accept_priv(struct stream_connection *c)
 466 {
 467         struct ldapsrv_service *ldapsrv_service = talloc_get_type_abort(
 468                 c->private_data, struct ldapsrv_service);
 469         struct auth_session_info *session_info;
 470         NTSTATUS status;
 471
 472         status = auth_system_session_info(
 473                 c, ldapsrv_service->task->lp_ctx, &session_info);
 474         if (!NT_STATUS_IS_OK(status)) {
 475                 stream_terminate_connection(c, "failed to setup system "
 476                                             "session info");
 477                 return;
 478         }
 479         ldapsrv_accept(c, session_info);
 480 }
 481
 482 static const struct stream_server_ops ldap_stream_priv_ops = {
 483         .name                   = "ldap",
 484         .accept_connection      = ldapsrv_accept_priv,
 485         .recv_handler           = ldapsrv_recv,
 486         .send_handler           = ldapsrv_send,
 487 };
 488
 489 #endif
 490 /*
 491   add a socket address to the list of events, one event per port
 492 */
 493 static NTSTATUS add_socket(struct tevent_context *event_context,
 494                            struct loadparm_context *lp_ctx,
 495                            const struct model_ops *model_ops,
 496                            const char *address, struct ldapsrv_service *ldap_service)
 497 {
 498         uint16_t port = 389;
 499         NTSTATUS status;
 500         struct ldb_context *ldb;
 501
 502         status = stream_setup_socket(event_context, lp_ctx,
 503                                      model_ops, &ldap_stream_nonpriv_ops,
 504                                      "ipv4", address, &port,
 505                                      lp_socket_options(lp_ctx),
 506                                      ldap_service);
 507         if (!NT_STATUS_IS_OK(status)) {
 508                 DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
 509                          address, port, nt_errstr(status)));
 510         }
 511
 512         if (tls_support(ldap_service->tls_params)) {
 513                 /* add ldaps server */
 514                 port = 636;
 515                 status = stream_setup_socket(event_context, lp_ctx,
 516                                              model_ops,
 517                                              &ldap_stream_nonpriv_ops,
 518                                              "ipv4", address, &port,
 519                                              lp_socket_options(lp_ctx),
 520                                              ldap_service);
 521                 if (!NT_STATUS_IS_OK(status)) {
 522                         DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
 523                                  address, port, nt_errstr(status)));
 524                 }
 525         }
 526
 527         /* Load LDAP database, but only to read our settings */
 528         ldb = samdb_connect(ldap_service, ldap_service->task->event_ctx,
 529                             lp_ctx, system_session(ldap_service, lp_ctx));
 530         if (!ldb) {
 531                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 532         }
 533
 534         if (samdb_is_gc(ldb)) {
 535                 port = 3268;
 536                 status = stream_setup_socket(event_context, lp_ctx,
 537                                              model_ops,
 538                                              &ldap_stream_nonpriv_ops,
 539                                              "ipv4", address, &port,
 540                                              lp_socket_options(lp_ctx),
 541                                              ldap_service);
 542                 if (!NT_STATUS_IS_OK(status)) {
 543                         DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
 544                                  address, port, nt_errstr(status)));
 545                 }
 546         }
 547
 548         /* And once we are bound, free the tempoary ldb, it will
 549          * connect again on each incoming LDAP connection */
 550         talloc_free(ldb);
 551
 552         return status;
 553 }
 554
 555 /*
 556   open the ldap server sockets
 557 */
 558 static void ldapsrv_task_init(struct task_server *task)
 559 {
 560         char *ldapi_path;
 561 #ifdef WITH_LDAPI_PRIV_SOCKET
 562         char *priv_dir;
 563 #endif
 564         struct ldapsrv_service *ldap_service;
 565         NTSTATUS status;
 566         const struct model_ops *model_ops;
 567
 568         switch (lp_server_role(task->lp_ctx)) {
 569         case ROLE_STANDALONE:
 570                 task_server_terminate(task, "ldap_server: no LDAP server required in standalone configuration");
 571                 return;
 572         case ROLE_DOMAIN_MEMBER:
 573                 task_server_terminate(task, "ldap_server: no LDAP server required in member server configuration");
 574                 return;
 575         case ROLE_DOMAIN_CONTROLLER:
 576                 /* Yes, we want an LDAP server */
 577                 break;
 578         }
 579
 580         task_server_set_title(task, "task[ldapsrv]");
 581
 582         /* run the ldap server as a single process */
 583         model_ops = process_model_startup(task->event_ctx, "single");
 584         if (!model_ops) goto failed;
 585
 586         ldap_service = talloc_zero(task, struct ldapsrv_service);
 587         if (ldap_service == NULL) goto failed;
 588
 589         ldap_service->task = task;
 590
 591         ldap_service->tls_params = tls_initialise(ldap_service, task->lp_ctx);
 592         if (ldap_service->tls_params == NULL) goto failed;
 593
 594         if (lp_interfaces(task->lp_ctx) && lp_bind_interfaces_only(task->lp_ctx)) {
 595                 struct interface *ifaces;
 596                 int num_interfaces;
 597                 int i;
 598
 599                 load_interfaces(task, lp_interfaces(task->lp_ctx), &ifaces);
 600                 num_interfaces = iface_count(ifaces);
 601
 602                 /* We have been given an interfaces line, and been
 603                    told to only bind to those interfaces. Create a
 604                    socket per interface and bind to only these.
 605                 */
 606                 for(i = 0; i < num_interfaces; i++) {
 607                         const char *address = iface_n_ip(ifaces, i);
 608                         status = add_socket(task->event_ctx, task->lp_ctx, model_ops, address, ldap_service);
 609                         if (!NT_STATUS_IS_OK(status)) goto failed;
 610                 }
 611         } else {
 612                 status = add_socket(task->event_ctx, task->lp_ctx, model_ops,
 613                                     lp_socket_address(task->lp_ctx), ldap_service);
 614                 if (!NT_STATUS_IS_OK(status)) goto failed;
 615         }
 616
 617         ldapi_path = private_path(ldap_service, task->lp_ctx, "ldapi");
 618         if (!ldapi_path) {
 619                 goto failed;
 620         }
 621
 622         status = stream_setup_socket(task->event_ctx, task->lp_ctx,
 623                                      model_ops, &ldap_stream_nonpriv_ops,
 624                                      "unix", ldapi_path, NULL,
 625                                      lp_socket_options(task->lp_ctx),
 626                                      ldap_service);
 627         talloc_free(ldapi_path);
 628         if (!NT_STATUS_IS_OK(status)) {
 629                 DEBUG(0,("ldapsrv failed to bind to %s - %s\n",
 630                          ldapi_path, nt_errstr(status)));
 631         }
 632
 633 #ifdef WITH_LDAPI_PRIV_SOCKET
 634         priv_dir = private_path(ldap_service, task->lp_ctx, "ldap_priv");
 635         if (priv_dir == NULL) {
 636                 goto failed;
 637         }
 638         /*
 639          * Make sure the directory for the privileged ldapi socket exists, and
 640          * is of the correct permissions
 641          */
 642         if (!directory_create_or_exist(priv_dir, geteuid(), 0750)) {
 643                 task_server_terminate(task, "Cannot create ldap "
 644                                       "privileged ldapi directory");
 645                 return;
 646         }
 647         ldapi_path = talloc_asprintf(ldap_service, "%s/ldapi", priv_dir);
 648         talloc_free(priv_dir);
 649         if (ldapi_path == NULL) {
 650                 goto failed;
 651         }
 652
 653         status = stream_setup_socket(task->event_ctx, task->lp_ctx,
 654                                      model_ops, &ldap_stream_priv_ops,
 655                                      "unix", ldapi_path, NULL,
 656                                      lp_socket_options(task->lp_ctx),
 657                                      ldap_service);
 658         talloc_free(ldapi_path);
 659         if (!NT_STATUS_IS_OK(status)) {
 660                 DEBUG(0,("ldapsrv failed to bind to %s - %s\n",
 661                          ldapi_path, nt_errstr(status)));
 662         }
 663
 664 #endif
 665         return;
 666
 667 failed:
 668         task_server_terminate(task, "Failed to startup ldap server task");
 669 }
 670
 671
 672 NTSTATUS server_service_ldap_init(void)
 673 {
 674         return register_server_service("ldap", ldapsrv_task_init);
 675 }