source4/rpc_server/service_rpc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    smbd-specific dcerpc server code
   5
   6    Copyright (C) Andrew Tridgell 2003-2005
   7    Copyright (C) Stefan (metze) Metzmacher 2004-2005
   8    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2004,2007
   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 "librpc/gen_ndr/ndr_dcerpc.h"
  26 #include "auth/auth.h"
  27 #include "../lib/util/dlinklist.h"
  28 #include "rpc_server/dcerpc_server.h"
  29 #include "rpc_server/dcerpc_server_proto.h"
  30 #include "system/filesys.h"
  31 #include "lib/messaging/irpc.h"
  32 #include "system/network.h"
  33 #include "lib/socket/netif.h"
  34 #include "param/param.h"
  35 #include "../lib/tsocket/tsocket.h"
  36 #include "librpc/rpc/dcerpc_proto.h"
  37 #include "../lib/util/tevent_ntstatus.h"
  38 #include "libcli/raw/smb.h"
  39 #include "../libcli/named_pipe_auth/npa_tstream.h"
  40 #include "smbd/process_model.h"
  41
  42 struct dcesrv_socket_context {
  43         const struct dcesrv_endpoint *endpoint;
  44         struct dcesrv_context *dcesrv_ctx;
  45 };
  46
  47 static void dcesrv_terminate_connection(struct dcesrv_connection *dce_conn, const char *reason)
  48 {
  49         struct stream_connection *srv_conn;
  50         srv_conn = talloc_get_type(dce_conn->transport.private_data,
  51                                    struct stream_connection);
  52
  53         stream_terminate_connection(srv_conn, reason);
  54 }
  55
  56 static void dcesrv_sock_reply_done(struct tevent_req *subreq);
  57
  58 struct dcesrv_sock_reply_state {
  59         struct dcesrv_connection *dce_conn;
  60         struct dcesrv_call_state *call;
  61         struct iovec iov;
  62 };
  63
  64 static void dcesrv_sock_report_output_data(struct dcesrv_connection *dce_conn)
  65 {
  66         struct dcesrv_call_state *call;
  67
  68         call = dce_conn->call_list;
  69         if (!call || !call->replies) {
  70                 return;
  71         }
  72
  73         while (call->replies) {
  74                 struct data_blob_list_item *rep = call->replies;
  75                 struct dcesrv_sock_reply_state *substate;
  76                 struct tevent_req *subreq;
  77
  78                 substate = talloc(call, struct dcesrv_sock_reply_state);
  79                 if (!substate) {
  80                         dcesrv_terminate_connection(dce_conn, "no memory");
  81                         return;
  82                 }
  83
  84                 substate->dce_conn = dce_conn;
  85                 substate->call = NULL;
  86
  87                 DLIST_REMOVE(call->replies, rep);
  88
  89                 if (call->replies == NULL) {
  90                         substate->call = call;
  91                 }
  92
  93                 substate->iov.iov_base = rep->blob.data;
  94                 substate->iov.iov_len = rep->blob.length;
  95
  96                 subreq = tstream_writev_queue_send(substate,
  97                                                    dce_conn->event_ctx,
  98                                                    dce_conn->stream,
  99                                                    dce_conn->send_queue,
 100                                                    &substate->iov, 1);
 101                 if (!subreq) {
 102                         dcesrv_terminate_connection(dce_conn, "no memory");
 103                         return;
 104                 }
 105                 tevent_req_set_callback(subreq, dcesrv_sock_reply_done,
 106                                         substate);
 107         }
 108
 109         DLIST_REMOVE(call->conn->call_list, call);
 110         call->list = DCESRV_LIST_NONE;
 111 }
 112
 113 static void dcesrv_sock_reply_done(struct tevent_req *subreq)
 114 {
 115         struct dcesrv_sock_reply_state *substate = tevent_req_callback_data(subreq,
 116                                                 struct dcesrv_sock_reply_state);
 117         int ret;
 118         int sys_errno;
 119         NTSTATUS status;
 120         struct dcesrv_call_state *call = substate->call;
 121
 122         ret = tstream_writev_queue_recv(subreq, &sys_errno);
 123         TALLOC_FREE(subreq);
 124         if (ret == -1) {
 125                 status = map_nt_error_from_unix(sys_errno);
 126                 dcesrv_terminate_connection(substate->dce_conn, nt_errstr(status));
 127                 return;
 128         }
 129
 130         talloc_free(substate);
 131         if (call) {
 132                 talloc_free(call);
 133         }
 134 }
 135
 136 struct dcerpc_read_ncacn_packet_state {
 137         struct {
 138         } caller;
 139         DATA_BLOB buffer;
 140         struct ncacn_packet *pkt;
 141 };
 142
 143 static int dcerpc_read_ncacn_packet_next_vector(struct tstream_context *stream,
 144                                                 void *private_data,
 145                                                 TALLOC_CTX *mem_ctx,
 146                                                 struct iovec **_vector,
 147                                                 size_t *_count);
 148 static void dcerpc_read_ncacn_packet_done(struct tevent_req *subreq);
 149
 150 static struct tevent_req *dcerpc_read_ncacn_packet_send(TALLOC_CTX *mem_ctx,
 151                                                  struct tevent_context *ev,
 152                                                  struct tstream_context *stream)
 153 {
 154         struct tevent_req *req;
 155         struct dcerpc_read_ncacn_packet_state *state;
 156         struct tevent_req *subreq;
 157
 158         req = tevent_req_create(mem_ctx, &state,
 159                                 struct dcerpc_read_ncacn_packet_state);
 160         if (req == NULL) {
 161                 return NULL;
 162         }
 163
 164         state->buffer = data_blob_const(NULL, 0);
 165         state->pkt = talloc(state, struct ncacn_packet);
 166         if (tevent_req_nomem(state->pkt, req)) {
 167                 goto post;
 168         }
 169
 170         subreq = tstream_readv_pdu_send(state, ev,
 171                                         stream,
 172                                         dcerpc_read_ncacn_packet_next_vector,
 173                                         state);
 174         if (tevent_req_nomem(subreq, req)) {
 175                 goto post;
 176         }
 177         tevent_req_set_callback(subreq, dcerpc_read_ncacn_packet_done, req);
 178
 179         return req;
 180  post:
 181         tevent_req_post(req, ev);
 182         return req;
 183 }
 184
 185 static int dcerpc_read_ncacn_packet_next_vector(struct tstream_context *stream,
 186                                                 void *private_data,
 187                                                 TALLOC_CTX *mem_ctx,
 188                                                 struct iovec **_vector,
 189                                                 size_t *_count)
 190 {
 191         struct dcerpc_read_ncacn_packet_state *state =
 192                 talloc_get_type_abort(private_data,
 193                 struct dcerpc_read_ncacn_packet_state);
 194         struct iovec *vector;
 195         off_t ofs = 0;
 196
 197         if (state->buffer.length == 0) {
 198                 /* first get enough to read the fragment length */
 199                 ofs = 0;
 200                 state->buffer.length = DCERPC_FRAG_LEN_OFFSET + 2;
 201                 state->buffer.data = talloc_array(state, uint8_t,
 202                                                   state->buffer.length);
 203                 if (!state->buffer.data) {
 204                         return -1;
 205                 }
 206         } else if (state->buffer.length == (DCERPC_FRAG_LEN_OFFSET + 2)) {
 207                 /* now read the fragment length and allocate the full buffer */
 208                 size_t frag_len = dcerpc_get_frag_length(&state->buffer);
 209
 210                 ofs = state->buffer.length;
 211
 212                 state->buffer.data = talloc_realloc(state,
 213                                                     state->buffer.data,
 214                                                     uint8_t, frag_len);
 215                 if (!state->buffer.data) {
 216                         return -1;
 217                 }
 218                 state->buffer.length = frag_len;
 219         } else {
 220                 /* if we reach this we have a full fragment */
 221                 *_vector = NULL;
 222                 *_count = 0;
 223                 return 0;
 224         }
 225
 226         /* now create the vector that we want to be filled */
 227         vector = talloc_array(mem_ctx, struct iovec, 1);
 228         if (!vector) {
 229                 return -1;
 230         }
 231
 232         vector[0].iov_base = state->buffer.data + ofs;
 233         vector[0].iov_len = state->buffer.length - ofs;
 234
 235         *_vector = vector;
 236         *_count = 1;
 237         return 0;
 238 }
 239
 240 static void dcerpc_read_ncacn_packet_done(struct tevent_req *subreq)
 241 {
 242         struct tevent_req *req = tevent_req_callback_data(subreq,
 243                                  struct tevent_req);
 244         struct dcerpc_read_ncacn_packet_state *state = tevent_req_data(req,
 245                                         struct dcerpc_read_ncacn_packet_state);
 246         int ret;
 247         int sys_errno;
 248         struct ndr_pull *ndr;
 249         enum ndr_err_code ndr_err;
 250         NTSTATUS status;
 251
 252         ret = tstream_readv_pdu_recv(subreq, &sys_errno);
 253         TALLOC_FREE(subreq);
 254         if (ret == -1) {
 255                 status = map_nt_error_from_unix(sys_errno);
 256                 tevent_req_nterror(req, status);
 257                 return;
 258         }
 259
 260         ndr = ndr_pull_init_blob(&state->buffer, state->pkt);
 261         if (tevent_req_nomem(ndr, req)) {
 262                 return;
 263         }
 264
 265         if (!(CVAL(ndr->data, DCERPC_DREP_OFFSET) & DCERPC_DREP_LE)) {
 266                 ndr->flags |= LIBNDR_FLAG_BIGENDIAN;
 267         }
 268
 269         if (CVAL(ndr->data, DCERPC_PFC_OFFSET) & DCERPC_PFC_FLAG_OBJECT_UUID) {
 270                 ndr->flags |= LIBNDR_FLAG_OBJECT_PRESENT;
 271         }
 272
 273         ndr_err = ndr_pull_ncacn_packet(ndr, NDR_SCALARS|NDR_BUFFERS, state->pkt);
 274         TALLOC_FREE(ndr);
 275         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 276                 status = ndr_map_error2ntstatus(ndr_err);
 277                 tevent_req_nterror(req, status);
 278                 return;
 279         }
 280
 281         tevent_req_done(req);
 282 }
 283
 284 static NTSTATUS dcerpc_read_ncacn_packet_recv(struct tevent_req *req,
 285                                        TALLOC_CTX *mem_ctx,
 286                                        struct ncacn_packet **pkt,
 287                                        DATA_BLOB *buffer)
 288 {
 289         struct dcerpc_read_ncacn_packet_state *state = tevent_req_data(req,
 290                                         struct dcerpc_read_ncacn_packet_state);
 291         NTSTATUS status;
 292
 293         if (tevent_req_is_nterror(req, &status)) {
 294                 tevent_req_received(req);
 295                 return status;
 296         }
 297
 298         *pkt = talloc_move(mem_ctx, &state->pkt);
 299         if (buffer) {
 300                 buffer->data = talloc_move(mem_ctx, &state->buffer.data);
 301                 buffer->length = state->buffer.length;
 302         }
 303
 304         tevent_req_received(req);
 305         return NT_STATUS_OK;
 306 }
 307
 308 static void dcesrv_read_fragment_done(struct tevent_req *subreq);
 309
 310 static void dcesrv_sock_accept(struct stream_connection *srv_conn)
 311 {
 312         NTSTATUS status;
 313         struct dcesrv_socket_context *dcesrv_sock =
 314                 talloc_get_type(srv_conn->private_data, struct dcesrv_socket_context);
 315         struct dcesrv_connection *dcesrv_conn = NULL;
 316         int ret;
 317         struct tevent_req *subreq;
 318         struct loadparm_context *lp_ctx = dcesrv_sock->dcesrv_ctx->lp_ctx;
 319
 320         if (!srv_conn->session_info) {
 321                 status = auth_anonymous_session_info(srv_conn,
 322                                                      lp_ctx,
 323                                                      &srv_conn->session_info);
 324                 if (!NT_STATUS_IS_OK(status)) {
 325                         DEBUG(0,("dcesrv_sock_accept: auth_anonymous_session_info failed: %s\n",
 326                                 nt_errstr(status)));
 327                         stream_terminate_connection(srv_conn, nt_errstr(status));
 328                         return;
 329                 }
 330         }
 331
 332         status = dcesrv_endpoint_connect(dcesrv_sock->dcesrv_ctx,
 333                                          srv_conn,
 334                                          dcesrv_sock->endpoint,
 335                                          srv_conn->session_info,
 336                                          srv_conn->event.ctx,
 337                                          srv_conn->msg_ctx,
 338                                          srv_conn->server_id,
 339                                          DCESRV_CALL_STATE_FLAG_MAY_ASYNC,
 340                                          &dcesrv_conn);
 341         if (!NT_STATUS_IS_OK(status)) {
 342                 DEBUG(0,("dcesrv_sock_accept: dcesrv_endpoint_connect failed: %s\n",
 343                         nt_errstr(status)));
 344                 stream_terminate_connection(srv_conn, nt_errstr(status));
 345                 return;
 346         }
 347
 348         dcesrv_conn->transport.private_data             = srv_conn;
 349         dcesrv_conn->transport.report_output_data       = dcesrv_sock_report_output_data;
 350
 351         TALLOC_FREE(srv_conn->event.fde);
 352
 353         dcesrv_conn->send_queue = tevent_queue_create(dcesrv_conn, "dcesrv send queue");
 354         if (!dcesrv_conn->send_queue) {
 355                 status = NT_STATUS_NO_MEMORY;
 356                 DEBUG(0,("dcesrv_sock_accept: tevent_queue_create(%s)\n",
 357                         nt_errstr(status)));
 358                 stream_terminate_connection(srv_conn, nt_errstr(status));
 359                 return;
 360         }
 361
 362         if (dcesrv_sock->endpoint->ep_description->transport == NCACN_NP) {
 363                 dcesrv_conn->auth_state.session_key = dcesrv_inherited_session_key;
 364                 dcesrv_conn->stream = talloc_move(dcesrv_conn,
 365                                                   &srv_conn->tstream);
 366         } else {
 367                 ret = tstream_bsd_existing_socket(dcesrv_conn,
 368                                                   socket_get_fd(srv_conn->socket),
 369                                                   &dcesrv_conn->stream);
 370                 if (ret == -1) {
 371                         status = map_nt_error_from_unix(errno);
 372                         DEBUG(0, ("dcesrv_sock_accept: "
 373                                   "failed to setup tstream: %s\n",
 374                                   nt_errstr(status)));
 375                         stream_terminate_connection(srv_conn, nt_errstr(status));
 376                         return;
 377                 }
 378         }
 379
 380         dcesrv_conn->local_address = srv_conn->local_address;
 381         dcesrv_conn->remote_address = srv_conn->remote_address;
 382
 383         srv_conn->private_data = dcesrv_conn;
 384
 385         irpc_add_name(srv_conn->msg_ctx, "rpc_server");
 386
 387         subreq = dcerpc_read_ncacn_packet_send(dcesrv_conn,
 388                                                dcesrv_conn->event_ctx,
 389                                                dcesrv_conn->stream);
 390         if (!subreq) {
 391                 status = NT_STATUS_NO_MEMORY;
 392                 DEBUG(0,("dcesrv_sock_accept: dcerpc_read_fragment_buffer_send(%s)\n",
 393                         nt_errstr(status)));
 394                 stream_terminate_connection(srv_conn, nt_errstr(status));
 395                 return;
 396         }
 397         tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dcesrv_conn);
 398
 399         return;
 400 }
 401
 402 static void dcesrv_read_fragment_done(struct tevent_req *subreq)
 403 {
 404         struct dcesrv_connection *dce_conn = tevent_req_callback_data(subreq,
 405                                              struct dcesrv_connection);
 406         struct ncacn_packet *pkt;
 407         DATA_BLOB buffer;
 408         NTSTATUS status;
 409
 410         status = dcerpc_read_ncacn_packet_recv(subreq, dce_conn,
 411                                                &pkt, &buffer);
 412         TALLOC_FREE(subreq);
 413         if (!NT_STATUS_IS_OK(status)) {
 414                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 415                 return;
 416         }
 417
 418         status = dcesrv_process_ncacn_packet(dce_conn, pkt, buffer);
 419         if (!NT_STATUS_IS_OK(status)) {
 420                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 421                 return;
 422         }
 423
 424         subreq = dcerpc_read_ncacn_packet_send(dce_conn,
 425                                                dce_conn->event_ctx,
 426                                                dce_conn->stream);
 427         if (!subreq) {
 428                 status = NT_STATUS_NO_MEMORY;
 429                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 430                 return;
 431         }
 432         tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dce_conn);
 433 }
 434
 435 static void dcesrv_sock_recv(struct stream_connection *conn, uint16_t flags)
 436 {
 437         struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
 438                                              struct dcesrv_connection);
 439         dcesrv_terminate_connection(dce_conn, "dcesrv_sock_recv triggered");
 440 }
 441
 442 static void dcesrv_sock_send(struct stream_connection *conn, uint16_t flags)
 443 {
 444         struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
 445                                              struct dcesrv_connection);
 446         dcesrv_terminate_connection(dce_conn, "dcesrv_sock_send triggered");
 447 }
 448
 449
 450 static const struct stream_server_ops dcesrv_stream_ops = {
 451         .name                   = "rpc",
 452         .accept_connection      = dcesrv_sock_accept,
 453         .recv_handler           = dcesrv_sock_recv,
 454         .send_handler           = dcesrv_sock_send,
 455 };
 456
 457
 458
 459 static NTSTATUS dcesrv_add_ep_unix(struct dcesrv_context *dce_ctx,
 460                                    struct loadparm_context *lp_ctx,
 461                                    struct dcesrv_endpoint *e,
 462                             struct tevent_context *event_ctx, const struct model_ops *model_ops)
 463 {
 464         struct dcesrv_socket_context *dcesrv_sock;
 465         uint16_t port = 1;
 466         NTSTATUS status;
 467
 468         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 469         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 470
 471         /* remember the endpoint of this socket */
 472         dcesrv_sock->endpoint           = e;
 473         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 474
 475         status = stream_setup_socket(event_ctx, lp_ctx,
 476                                      model_ops, &dcesrv_stream_ops,
 477                                      "unix", e->ep_description->endpoint, &port,
 478                                      lp_socket_options(lp_ctx),
 479                                      dcesrv_sock);
 480         if (!NT_STATUS_IS_OK(status)) {
 481                 DEBUG(0,("service_setup_stream_socket(path=%s) failed - %s\n",
 482                          e->ep_description->endpoint, nt_errstr(status)));
 483         }
 484
 485         return status;
 486 }
 487
 488 static NTSTATUS dcesrv_add_ep_ncalrpc(struct dcesrv_context *dce_ctx,
 489                                       struct loadparm_context *lp_ctx,
 490                                       struct dcesrv_endpoint *e,
 491                                       struct tevent_context *event_ctx, const struct model_ops *model_ops)
 492 {
 493         struct dcesrv_socket_context *dcesrv_sock;
 494         uint16_t port = 1;
 495         char *full_path;
 496         NTSTATUS status;
 497
 498         if (!e->ep_description->endpoint) {
 499                 /* No identifier specified: use DEFAULT.
 500                  * DO NOT hardcode this value anywhere else. Rather, specify
 501                  * no endpoint and let the epmapper worry about it. */
 502                 e->ep_description->endpoint = talloc_strdup(dce_ctx, "DEFAULT");
 503         }
 504
 505         full_path = talloc_asprintf(dce_ctx, "%s/%s", lp_ncalrpc_dir(lp_ctx),
 506                                     e->ep_description->endpoint);
 507
 508         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 509         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 510
 511         /* remember the endpoint of this socket */
 512         dcesrv_sock->endpoint           = e;
 513         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 514
 515         status = stream_setup_socket(event_ctx, lp_ctx,
 516                                      model_ops, &dcesrv_stream_ops,
 517                                      "unix", full_path, &port,
 518                                      lp_socket_options(lp_ctx),
 519                                      dcesrv_sock);
 520         if (!NT_STATUS_IS_OK(status)) {
 521                 DEBUG(0,("service_setup_stream_socket(identifier=%s,path=%s) failed - %s\n",
 522                          e->ep_description->endpoint, full_path, nt_errstr(status)));
 523         }
 524         return status;
 525 }
 526
 527 static NTSTATUS dcesrv_add_ep_np(struct dcesrv_context *dce_ctx,
 528                                  struct loadparm_context *lp_ctx,
 529                                  struct dcesrv_endpoint *e,
 530                                  struct tevent_context *event_ctx, const struct model_ops *model_ops)
 531 {
 532         struct dcesrv_socket_context *dcesrv_sock;
 533         NTSTATUS status;
 534
 535         if (e->ep_description->endpoint == NULL) {
 536                 DEBUG(0, ("Endpoint mandatory for named pipes\n"));
 537                 return NT_STATUS_INVALID_PARAMETER;
 538         }
 539
 540         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 541         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 542
 543         /* remember the endpoint of this socket */
 544         dcesrv_sock->endpoint           = e;
 545         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 546
 547         status = tstream_setup_named_pipe(event_ctx, lp_ctx,
 548                                           model_ops, &dcesrv_stream_ops,
 549                                           e->ep_description->endpoint,
 550                                           dcesrv_sock);
 551         if (!NT_STATUS_IS_OK(status)) {
 552                 DEBUG(0,("stream_setup_named_pipe(pipe=%s) failed - %s\n",
 553                          e->ep_description->endpoint, nt_errstr(status)));
 554                 return status;
 555         }
 556
 557         return NT_STATUS_OK;
 558 }
 559
 560 /*
 561   add a socket address to the list of events, one event per dcerpc endpoint
 562 */
 563 static NTSTATUS add_socket_rpc_tcp_iface(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
 564                                          struct tevent_context *event_ctx, const struct model_ops *model_ops,
 565                                          const char *address)
 566 {
 567         struct dcesrv_socket_context *dcesrv_sock;
 568         uint16_t port = 0;
 569         NTSTATUS status;
 570
 571         if (e->ep_description->endpoint) {
 572                 port = atoi(e->ep_description->endpoint);
 573         }
 574
 575         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 576         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 577
 578         /* remember the endpoint of this socket */
 579         dcesrv_sock->endpoint           = e;
 580         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 581
 582         status = stream_setup_socket(event_ctx, dce_ctx->lp_ctx,
 583                                      model_ops, &dcesrv_stream_ops,
 584                                      "ipv4", address, &port,
 585                                      lp_socket_options(dce_ctx->lp_ctx),
 586                                      dcesrv_sock);
 587         if (!NT_STATUS_IS_OK(status)) {
 588                 DEBUG(0,("service_setup_stream_socket(address=%s,port=%u) failed - %s\n",
 589                          address, port, nt_errstr(status)));
 590         }
 591
 592         if (e->ep_description->endpoint == NULL) {
 593                 e->ep_description->endpoint = talloc_asprintf(dce_ctx, "%d", port);
 594         }
 595
 596         return status;
 597 }
 598
 599 static NTSTATUS dcesrv_add_ep_tcp(struct dcesrv_context *dce_ctx,
 600                                   struct loadparm_context *lp_ctx,
 601                                   struct dcesrv_endpoint *e,
 602                                   struct tevent_context *event_ctx, const struct model_ops *model_ops)
 603 {
 604         NTSTATUS status;
 605
 606         /* Add TCP/IP sockets */
 607         if (lp_interfaces(lp_ctx) && lp_bind_interfaces_only(lp_ctx)) {
 608                 int num_interfaces;
 609                 int i;
 610                 struct interface *ifaces;
 611
 612                 load_interfaces(dce_ctx, lp_interfaces(lp_ctx), &ifaces);
 613
 614                 num_interfaces = iface_count(ifaces);
 615                 for(i = 0; i < num_interfaces; i++) {
 616                         const char *address = iface_n_ip(ifaces, i);
 617                         status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, address);
 618                         NT_STATUS_NOT_OK_RETURN(status);
 619                 }
 620         } else {
 621                 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops,
 622                                                   lp_socket_address(lp_ctx));
 623                 NT_STATUS_NOT_OK_RETURN(status);
 624         }
 625
 626         return NT_STATUS_OK;
 627 }
 628
 629 NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
 630                        struct loadparm_context *lp_ctx,
 631                        struct dcesrv_endpoint *e,
 632                        struct tevent_context *event_ctx,
 633                        const struct model_ops *model_ops)
 634 {
 635         switch (e->ep_description->transport) {
 636         case NCACN_UNIX_STREAM:
 637                 return dcesrv_add_ep_unix(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 638
 639         case NCALRPC:
 640                 return dcesrv_add_ep_ncalrpc(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 641
 642         case NCACN_IP_TCP:
 643                 return dcesrv_add_ep_tcp(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 644
 645         case NCACN_NP:
 646                 return dcesrv_add_ep_np(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 647
 648         default:
 649                 return NT_STATUS_NOT_SUPPORTED;
 650         }
 651 }
 652
 653 /*
 654   open the dcerpc server sockets
 655 */
 656 static void dcesrv_task_init(struct task_server *task)
 657 {
 658         NTSTATUS status;
 659         struct dcesrv_context *dce_ctx;
 660         struct dcesrv_endpoint *e;
 661         const struct model_ops *model_ops;
 662
 663         dcerpc_server_init(task->lp_ctx);
 664
 665         task_server_set_title(task, "task[dcesrv]");
 666
 667         /* run the rpc server as a single process to allow for shard
 668          * handles, and sharing of ldb contexts */
 669         model_ops = process_model_startup(task->event_ctx, "single");
 670         if (!model_ops) goto failed;
 671
 672         status = dcesrv_init_context(task->event_ctx,
 673                                      task->lp_ctx,
 674                                      lp_dcerpc_endpoint_servers(task->lp_ctx),
 675                                      &dce_ctx);
 676         if (!NT_STATUS_IS_OK(status)) goto failed;
 677
 678         /* Make sure the directory for NCALRPC exists */
 679         if (!directory_exist(lp_ncalrpc_dir(task->lp_ctx))) {
 680                 mkdir(lp_ncalrpc_dir(task->lp_ctx), 0755);
 681         }
 682
 683         for (e=dce_ctx->endpoint_list;e;e=e->next) {
 684                 status = dcesrv_add_ep(dce_ctx, task->lp_ctx, e, task->event_ctx, model_ops);
 685                 if (!NT_STATUS_IS_OK(status)) goto failed;
 686         }
 687
 688         return;
 689 failed:
 690         task_server_terminate(task, "Failed to startup dcerpc server task", true);
 691 }
 692
 693 NTSTATUS server_service_rpc_init(void)
 694 {
 695
 696         return register_server_service("rpc", dcesrv_task_init);
 697 }