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_proto.h"
  41 #include "system/network.h"
  42 #include "lib/socket/netif.h"
  43 #include "dsdb/samdb/samdb.h"
  44 #include "param/param.h"
  45 /*
  46   close the socket and shutdown a server_context
  47 */
  48 void ldapsrv_terminate_connection(struct ldapsrv_connection *conn,
  49                                          const char *reason)
  50 {
  51         packet_recv_disable(conn->packet);
  52         TALLOC_FREE(conn->packet);
  53         TALLOC_FREE(conn->sockets.tls);
  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   disable packets on other sockets while processing this one
 136  */
 137 static void ldapsrv_disable_recv(struct ldapsrv_connection *conn)
 138 {
 139         struct ldapsrv_packet_interfaces *p;
 140         for (p=conn->service->packet_interfaces; p; p=p->next) {
 141                 if (p->packet != conn->packet) {
 142                         packet_recv_disable(p->packet);
 143                 }
 144         }
 145 }
 146
 147 /*
 148   disable packets on other sockets while processing this one
 149  */
 150 static void ldapsrv_enable_recv(struct ldapsrv_connection *conn)
 151 {
 152         struct ldapsrv_packet_interfaces *p;
 153         for (p=conn->service->packet_interfaces; p; p=p->next) {
 154                 if (p->packet != conn->packet) {
 155                         packet_recv_enable(p->packet);
 156                 }
 157         }
 158 }
 159
 160 /*
 161   decode/process data
 162 */
 163 static NTSTATUS ldapsrv_decode(void *private_data, DATA_BLOB blob)
 164 {
 165         NTSTATUS status;
 166         struct ldapsrv_connection *conn = talloc_get_type(private_data,
 167                                                           struct ldapsrv_connection);
 168         struct asn1_data *asn1 = asn1_init(conn);
 169         struct ldap_message *msg = talloc(conn, struct ldap_message);
 170
 171         if (asn1 == NULL || msg == NULL) {
 172                 return NT_STATUS_NO_MEMORY;
 173         }
 174
 175         if (!asn1_load(asn1, blob)) {
 176                 talloc_free(msg);
 177                 talloc_free(asn1);
 178                 return NT_STATUS_NO_MEMORY;
 179         }
 180
 181         status = ldap_decode(asn1, samba_ldap_control_handlers(), msg);
 182         if (!NT_STATUS_IS_OK(status)) {
 183                 asn1_free(asn1);
 184                 return status;
 185         }
 186
 187         data_blob_free(&blob);
 188         talloc_steal(conn, msg);
 189         asn1_free(asn1);
 190
 191         /* disable messages on other sockets while processing this one */
 192         ldapsrv_disable_recv(conn);
 193
 194         ldapsrv_process_message(conn, msg);
 195
 196         ldapsrv_enable_recv(conn);
 197
 198         return NT_STATUS_OK;
 199 }
 200
 201 /*
 202  Idle timeout handler
 203 */
 204 static void ldapsrv_conn_idle_timeout(struct tevent_context *ev,
 205                                       struct tevent_timer *te,
 206                                       struct timeval t,
 207                                       void *private_data)
 208 {
 209         struct ldapsrv_connection *conn = talloc_get_type(private_data, struct ldapsrv_connection);
 210
 211         ldapsrv_terminate_connection(conn, "Timeout. No requests after bind");
 212 }
 213
 214 /*
 215   called when a LDAP socket becomes readable
 216 */
 217 void ldapsrv_recv(struct stream_connection *c, uint16_t flags)
 218 {
 219         struct ldapsrv_connection *conn =
 220                 talloc_get_type(c->private_data, struct ldapsrv_connection);
 221
 222         if (conn->limits.ite) { /* clean initial timeout if any */
 223                 talloc_free(conn->limits.ite);
 224                 conn->limits.ite = NULL;
 225         }
 226
 227         if (conn->limits.te) { /* clean idle timeout if any */
 228                 talloc_free(conn->limits.te);
 229                 conn->limits.te = NULL;
 230         }
 231
 232         packet_recv(conn->packet);
 233
 234         /* set idle timeout */
 235         conn->limits.te = event_add_timed(c->event.ctx, conn,
 236                                            timeval_current_ofs(conn->limits.conn_idle_time, 0),
 237                                            ldapsrv_conn_idle_timeout, conn);
 238 }
 239
 240 /*
 241   called when a LDAP socket becomes writable
 242 */
 243 static void ldapsrv_send(struct stream_connection *c, uint16_t flags)
 244 {
 245         struct ldapsrv_connection *conn =
 246                 talloc_get_type(c->private_data, struct ldapsrv_connection);
 247
 248         packet_queue_run(conn->packet);
 249 }
 250
 251 static void ldapsrv_conn_init_timeout(struct tevent_context *ev,
 252                                       struct tevent_timer *te,
 253                                       struct timeval t,
 254                                       void *private_data)
 255 {
 256         struct ldapsrv_connection *conn = talloc_get_type(private_data, struct ldapsrv_connection);
 257
 258         ldapsrv_terminate_connection(conn, "Timeout. No requests after initial connection");
 259 }
 260
 261 static int ldapsrv_load_limits(struct ldapsrv_connection *conn)
 262 {
 263         TALLOC_CTX *tmp_ctx;
 264         const char *attrs[] = { "configurationNamingContext", NULL };
 265         const char *attrs2[] = { "lDAPAdminLimits", NULL };
 266         struct ldb_message_element *el;
 267         struct ldb_result *res = NULL;
 268         struct ldb_dn *basedn;
 269         struct ldb_dn *conf_dn;
 270         struct ldb_dn *policy_dn;
 271         unsigned int i;
 272         int ret;
 273
 274         /* set defaults limits in case of failure */
 275         conn->limits.initial_timeout = 120;
 276         conn->limits.conn_idle_time = 900;
 277         conn->limits.max_page_size = 1000;
 278         conn->limits.search_timeout = 120;
 279
 280
 281         tmp_ctx = talloc_new(conn);
 282         if (tmp_ctx == NULL) {
 283                 return -1;
 284         }
 285
 286         basedn = ldb_dn_new(tmp_ctx, conn->ldb, NULL);
 287         if ( ! ldb_dn_validate(basedn)) {
 288                 goto failed;
 289         }
 290
 291         ret = ldb_search(conn->ldb, tmp_ctx, &res, basedn, LDB_SCOPE_BASE, attrs, NULL);
 292         if (ret != LDB_SUCCESS) {
 293                 goto failed;
 294         }
 295
 296         if (res->count != 1) {
 297                 goto failed;
 298         }
 299
 300         conf_dn = ldb_msg_find_attr_as_dn(conn->ldb, tmp_ctx, res->msgs[0], "configurationNamingContext");
 301         if (conf_dn == NULL) {
 302                 goto failed;
 303         }
 304
 305         policy_dn = ldb_dn_copy(tmp_ctx, conf_dn);
 306         ldb_dn_add_child_fmt(policy_dn, "CN=Default Query Policy,CN=Query-Policies,CN=Directory Service,CN=Windows NT,CN=Services");
 307         if (policy_dn == NULL) {
 308                 goto failed;
 309         }
 310
 311         ret = ldb_search(conn->ldb, tmp_ctx, &res, policy_dn, LDB_SCOPE_BASE, attrs2, NULL);
 312         if (ret != LDB_SUCCESS) {
 313                 goto failed;
 314         }
 315
 316         if (res->count != 1) {
 317                 goto failed;
 318         }
 319
 320         el = ldb_msg_find_element(res->msgs[0], "lDAPAdminLimits");
 321         if (el == NULL) {
 322                 goto failed;
 323         }
 324
 325         for (i = 0; i < el->num_values; i++) {
 326                 char policy_name[256];
 327                 int policy_value, s;
 328
 329                 s = sscanf((const char *)el->values[i].data, "%255[^=]=%d", policy_name, &policy_value);
 330                 if (ret != 2 || policy_value == 0)
 331                         continue;
 332
 333                 if (strcasecmp("InitRecvTimeout", policy_name) == 0) {
 334                         conn->limits.initial_timeout = policy_value;
 335                         continue;
 336                 }
 337                 if (strcasecmp("MaxConnIdleTime", policy_name) == 0) {
 338                         conn->limits.conn_idle_time = policy_value;
 339                         continue;
 340                 }
 341                 if (strcasecmp("MaxPageSize", policy_name) == 0) {
 342                         conn->limits.max_page_size = policy_value;
 343                         continue;
 344                 }
 345                 if (strcasecmp("MaxQueryDuration", policy_name) == 0) {
 346                         conn->limits.search_timeout = policy_value;
 347                         continue;
 348                 }
 349         }
 350
 351         return 0;
 352
 353 failed:
 354         DEBUG(0, ("Failed to load ldap server query policies\n"));
 355         talloc_free(tmp_ctx);
 356         return -1;
 357 }
 358
 359 /*
 360   remove a packet interface from the service level list
 361  */
 362 static int packet_interface_destructor(struct ldapsrv_packet_interfaces *packet_interface)
 363 {
 364         DLIST_REMOVE(packet_interface->service->packet_interfaces, packet_interface);
 365         return 0;
 366 }
 367
 368 /*
 369   initialise a server_context from a open socket and register a event handler
 370   for reading from that socket
 371 */
 372 static void ldapsrv_accept(struct stream_connection *c,
 373                            struct auth_session_info *session_info)
 374 {
 375         struct ldapsrv_service *ldapsrv_service =
 376                 talloc_get_type(c->private_data, struct ldapsrv_service);
 377         struct ldapsrv_connection *conn;
 378         struct cli_credentials *server_credentials;
 379         struct socket_address *socket_address;
 380         NTSTATUS status;
 381         int port;
 382
 383         conn = talloc_zero(c, struct ldapsrv_connection);
 384         if (!conn) {
 385                 stream_terminate_connection(c, "ldapsrv_accept: out of memory");
 386                 return;
 387         }
 388
 389         conn->packet      = NULL;
 390         conn->connection  = c;
 391         conn->service     = ldapsrv_service;
 392         conn->sockets.raw = c->socket;
 393         conn->lp_ctx      = ldapsrv_service->task->lp_ctx;
 394
 395         c->private_data   = conn;
 396
 397         socket_address = socket_get_my_addr(c->socket, conn);
 398         if (!socket_address) {
 399                 ldapsrv_terminate_connection(conn, "ldapsrv_accept: failed to obtain local socket address!");
 400                 return;
 401         }
 402         port = socket_address->port;
 403         talloc_free(socket_address);
 404
 405         if (port == 636) {
 406                 struct socket_context *tls_socket = tls_init_server(ldapsrv_service->tls_params, c->socket,
 407                                                                     c->event.fde, NULL);
 408                 if (!tls_socket) {
 409                         ldapsrv_terminate_connection(conn, "ldapsrv_accept: tls_init_server() failed");
 410                         return;
 411                 }
 412                 talloc_steal(c, tls_socket);
 413                 c->socket = tls_socket;
 414                 conn->sockets.tls = tls_socket;
 415
 416         } else if (port == 3268) /* Global catalog */ {
 417                 conn->global_catalog = true;
 418         }
 419         conn->packet = packet_init(conn);
 420         if (conn->packet == NULL) {
 421                 ldapsrv_terminate_connection(conn, "out of memory");
 422                 return;
 423         }
 424
 425         packet_set_private(conn->packet, conn);
 426         packet_set_socket(conn->packet, c->socket);
 427         packet_set_callback(conn->packet, ldapsrv_decode);
 428         packet_set_full_request(conn->packet, ldap_full_packet);
 429         packet_set_error_handler(conn->packet, ldapsrv_error_handler);
 430         packet_set_event_context(conn->packet, c->event.ctx);
 431         packet_set_fde(conn->packet, c->event.fde);
 432         packet_set_serialise(conn->packet);
 433
 434         if (conn->sockets.tls) {
 435                 packet_set_unreliable_select(conn->packet);
 436         }
 437
 438         /* Ensure we don't get packets until the database is ready below */
 439         packet_recv_disable(conn->packet);
 440
 441         /* add to the service level list of packet interfaces, to
 442          * allow us to serialise between connections
 443          */
 444         conn->packet_interface = talloc(conn, struct ldapsrv_packet_interfaces);
 445         if (conn->packet_interface == NULL) {
 446                 ldapsrv_terminate_connection(conn, "out of memory");
 447         }
 448         conn->packet_interface->service = ldapsrv_service;
 449         conn->packet_interface->packet = conn->packet;
 450         DLIST_ADD(conn->service->packet_interfaces, conn->packet_interface);
 451         talloc_set_destructor(conn->packet_interface, packet_interface_destructor);
 452
 453         server_credentials = cli_credentials_init(conn);
 454         if (!server_credentials) {
 455                 stream_terminate_connection(c, "Failed to init server credentials\n");
 456                 return;
 457         }
 458
 459         cli_credentials_set_conf(server_credentials, conn->lp_ctx);
 460         status = cli_credentials_set_machine_account(server_credentials, conn->lp_ctx);
 461         if (!NT_STATUS_IS_OK(status)) {
 462                 stream_terminate_connection(c, talloc_asprintf(conn, "Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status)));
 463                 return;
 464         }
 465         conn->server_credentials = server_credentials;
 466
 467         conn->session_info = talloc_move(conn, &session_info);
 468
 469         if (!NT_STATUS_IS_OK(ldapsrv_backend_Init(conn))) {
 470                 ldapsrv_terminate_connection(conn, "backend Init failed");
 471                 return;
 472         }
 473
 474         /* load limits from the conf partition */
 475         ldapsrv_load_limits(conn); /* should we fail on error ? */
 476
 477         /* register the server */
 478         irpc_add_name(c->msg_ctx, "ldap_server");
 479
 480         /* set connections limits */
 481         conn->limits.ite = event_add_timed(c->event.ctx, conn,
 482                                            timeval_current_ofs(conn->limits.initial_timeout, 0),
 483                                            ldapsrv_conn_init_timeout, conn);
 484
 485         packet_recv_enable(conn->packet);
 486
 487 }
 488
 489 static void ldapsrv_accept_nonpriv(struct stream_connection *c)
 490 {
 491         struct ldapsrv_service *ldapsrv_service = talloc_get_type_abort(
 492                 c->private_data, struct ldapsrv_service);
 493         struct auth_session_info *session_info;
 494         NTSTATUS status;
 495
 496         status = auth_anonymous_session_info(
 497                 c, ldapsrv_service->task->lp_ctx, &session_info);
 498         if (!NT_STATUS_IS_OK(status)) {
 499                 stream_terminate_connection(c, "failed to setup anonymous "
 500                                             "session info");
 501                 return;
 502         }
 503         ldapsrv_accept(c, session_info);
 504 }
 505
 506 static const struct stream_server_ops ldap_stream_nonpriv_ops = {
 507         .name                   = "ldap",
 508         .accept_connection      = ldapsrv_accept_nonpriv,
 509         .recv_handler           = ldapsrv_recv,
 510         .send_handler           = ldapsrv_send,
 511 };
 512
 513 /* The feature removed behind an #ifdef until we can do it properly
 514  * with an EXTERNAL bind. */
 515
 516 #define WITH_LDAPI_PRIV_SOCKET
 517
 518 #ifdef WITH_LDAPI_PRIV_SOCKET
 519 static void ldapsrv_accept_priv(struct stream_connection *c)
 520 {
 521         struct ldapsrv_service *ldapsrv_service = talloc_get_type_abort(
 522                 c->private_data, struct ldapsrv_service);
 523         struct auth_session_info *session_info;
 524
 525         session_info = system_session(ldapsrv_service->task->lp_ctx);
 526         if (!session_info) {
 527                 stream_terminate_connection(c, "failed to setup system "
 528                                             "session info");
 529                 return;
 530         }
 531         ldapsrv_accept(c, session_info);
 532 }
 533
 534 static const struct stream_server_ops ldap_stream_priv_ops = {
 535         .name                   = "ldap",
 536         .accept_connection      = ldapsrv_accept_priv,
 537         .recv_handler           = ldapsrv_recv,
 538         .send_handler           = ldapsrv_send,
 539 };
 540
 541 #endif
 542 /*
 543   add a socket address to the list of events, one event per port
 544 */
 545 static NTSTATUS add_socket(struct tevent_context *event_context,
 546                            struct loadparm_context *lp_ctx,
 547                            const struct model_ops *model_ops,
 548                            const char *address, struct ldapsrv_service *ldap_service)
 549 {
 550         uint16_t port = 389;
 551         NTSTATUS status;
 552         struct ldb_context *ldb;
 553
 554         status = stream_setup_socket(event_context, lp_ctx,
 555                                      model_ops, &ldap_stream_nonpriv_ops,
 556                                      "ipv4", address, &port,
 557                                      lpcfg_socket_options(lp_ctx),
 558                                      ldap_service);
 559         if (!NT_STATUS_IS_OK(status)) {
 560                 DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
 561                          address, port, nt_errstr(status)));
 562                 return status;
 563         }
 564
 565         if (tls_support(ldap_service->tls_params)) {
 566                 /* add ldaps server */
 567                 port = 636;
 568                 status = stream_setup_socket(event_context, lp_ctx,
 569                                              model_ops,
 570                                              &ldap_stream_nonpriv_ops,
 571                                              "ipv4", address, &port,
 572                                              lpcfg_socket_options(lp_ctx),
 573                                              ldap_service);
 574                 if (!NT_STATUS_IS_OK(status)) {
 575                         DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
 576                                  address, port, nt_errstr(status)));
 577                         return status;
 578                 }
 579         }
 580
 581         /* Load LDAP database, but only to read our settings */
 582         ldb = samdb_connect(ldap_service, ldap_service->task->event_ctx,
 583                             lp_ctx, system_session(lp_ctx));
 584         if (!ldb) {
 585                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 586         }
 587
 588         if (samdb_is_gc(ldb)) {
 589                 port = 3268;
 590                 status = stream_setup_socket(event_context, lp_ctx,
 591                                              model_ops,
 592                                              &ldap_stream_nonpriv_ops,
 593                                              "ipv4", address, &port,
 594                                              lpcfg_socket_options(lp_ctx),
 595                                              ldap_service);
 596                 if (!NT_STATUS_IS_OK(status)) {
 597                         DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
 598                                  address, port, nt_errstr(status)));
 599                         return status;
 600                 }
 601         }
 602
 603         /* And once we are bound, free the tempoary ldb, it will
 604          * connect again on each incoming LDAP connection */
 605         talloc_unlink(ldap_service, ldb);
 606
 607         return NT_STATUS_OK;
 608 }
 609
 610 /*
 611   open the ldap server sockets
 612 */
 613 static void ldapsrv_task_init(struct task_server *task)
 614 {
 615         char *ldapi_path;
 616 #ifdef WITH_LDAPI_PRIV_SOCKET
 617         char *priv_dir;
 618 #endif
 619         struct ldapsrv_service *ldap_service;
 620         NTSTATUS status;
 621         const struct model_ops *model_ops;
 622
 623         switch (lpcfg_server_role(task->lp_ctx)) {
 624         case ROLE_STANDALONE:
 625                 task_server_terminate(task, "ldap_server: no LDAP server required in standalone configuration",
 626                                       false);
 627                 return;
 628         case ROLE_DOMAIN_MEMBER:
 629                 task_server_terminate(task, "ldap_server: no LDAP server required in member server configuration",
 630                                       false);
 631                 return;
 632         case ROLE_DOMAIN_CONTROLLER:
 633                 /* Yes, we want an LDAP server */
 634                 break;
 635         }
 636
 637         task_server_set_title(task, "task[ldapsrv]");
 638
 639         /* run the ldap server as a single process */
 640         model_ops = process_model_startup(task->event_ctx, "single");
 641         if (!model_ops) goto failed;
 642
 643         ldap_service = talloc_zero(task, struct ldapsrv_service);
 644         if (ldap_service == NULL) goto failed;
 645
 646         ldap_service->task = task;
 647
 648         ldap_service->tls_params = tls_initialise(ldap_service, task->lp_ctx);
 649         if (ldap_service->tls_params == NULL) goto failed;
 650
 651         if (lpcfg_interfaces(task->lp_ctx) && lpcfg_bind_interfaces_only(task->lp_ctx)) {
 652                 struct interface *ifaces;
 653                 int num_interfaces;
 654                 int i;
 655
 656                 load_interfaces(task, lpcfg_interfaces(task->lp_ctx), &ifaces);
 657                 num_interfaces = iface_count(ifaces);
 658
 659                 /* We have been given an interfaces line, and been
 660                    told to only bind to those interfaces. Create a
 661                    socket per interface and bind to only these.
 662                 */
 663                 for(i = 0; i < num_interfaces; i++) {
 664                         const char *address = iface_n_ip(ifaces, i);
 665                         status = add_socket(task->event_ctx, task->lp_ctx, model_ops, address, ldap_service);
 666                         if (!NT_STATUS_IS_OK(status)) goto failed;
 667                 }
 668         } else {
 669                 status = add_socket(task->event_ctx, task->lp_ctx, model_ops,
 670                                     lpcfg_socket_address(task->lp_ctx), ldap_service);
 671                 if (!NT_STATUS_IS_OK(status)) goto failed;
 672         }
 673
 674         ldapi_path = private_path(ldap_service, task->lp_ctx, "ldapi");
 675         if (!ldapi_path) {
 676                 goto failed;
 677         }
 678
 679         status = stream_setup_socket(task->event_ctx, task->lp_ctx,
 680                                      model_ops, &ldap_stream_nonpriv_ops,
 681                                      "unix", ldapi_path, NULL,
 682                                      lpcfg_socket_options(task->lp_ctx),
 683                                      ldap_service);
 684         talloc_free(ldapi_path);
 685         if (!NT_STATUS_IS_OK(status)) {
 686                 DEBUG(0,("ldapsrv failed to bind to %s - %s\n",
 687                          ldapi_path, nt_errstr(status)));
 688         }
 689
 690 #ifdef WITH_LDAPI_PRIV_SOCKET
 691         priv_dir = private_path(ldap_service, task->lp_ctx, "ldap_priv");
 692         if (priv_dir == NULL) {
 693                 goto failed;
 694         }
 695         /*
 696          * Make sure the directory for the privileged ldapi socket exists, and
 697          * is of the correct permissions
 698          */
 699         if (!directory_create_or_exist(priv_dir, geteuid(), 0750)) {
 700                 task_server_terminate(task, "Cannot create ldap "
 701                                       "privileged ldapi directory", true);
 702                 return;
 703         }
 704         ldapi_path = talloc_asprintf(ldap_service, "%s/ldapi", priv_dir);
 705         talloc_free(priv_dir);
 706         if (ldapi_path == NULL) {
 707                 goto failed;
 708         }
 709
 710         status = stream_setup_socket(task->event_ctx, task->lp_ctx,
 711                                      model_ops, &ldap_stream_priv_ops,
 712                                      "unix", ldapi_path, NULL,
 713                                      lpcfg_socket_options(task->lp_ctx),
 714                                      ldap_service);
 715         talloc_free(ldapi_path);
 716         if (!NT_STATUS_IS_OK(status)) {
 717                 DEBUG(0,("ldapsrv failed to bind to %s - %s\n",
 718                          ldapi_path, nt_errstr(status)));
 719         }
 720
 721 #endif
 722         return;
 723
 724 failed:
 725         task_server_terminate(task, "Failed to startup ldap server task", true);
 726 }
 727
 728
 729 NTSTATUS server_service_ldap_init(void)
 730 {
 731         return register_server_service("ldap", ldapsrv_task_init);
 732 }