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 "smbd/service.h"
  31 #include "system/filesys.h"
  32 #include "lib/socket/socket.h"
  33 #include "lib/messaging/irpc.h"
  34 #include "system/network.h"
  35 #include "lib/socket/netif.h"
  36 #include "param/param.h"
  37 #include "../lib/tsocket/tsocket.h"
  38 #include "librpc/rpc/dcerpc_proto.h"
  39 #include "../lib/util/tevent_ntstatus.h"
  40 #include "libcli/raw/smb.h"
  41 #include "../libcli/named_pipe_auth/npa_tstream.h"
  42
  43 struct dcesrv_socket_context {
  44         const struct dcesrv_endpoint *endpoint;
  45         struct dcesrv_context *dcesrv_ctx;
  46 };
  47
  48 static void dcesrv_terminate_connection(struct dcesrv_connection *dce_conn, const char *reason)
  49 {
  50         struct stream_connection *srv_conn;
  51         srv_conn = talloc_get_type(dce_conn->transport.private_data,
  52                                    struct stream_connection);
  53
  54         stream_terminate_connection(srv_conn, reason);
  55 }
  56
  57 static void dcesrv_sock_reply_done(struct tevent_req *subreq);
  58
  59 struct dcesrv_sock_reply_state {
  60         struct dcesrv_connection *dce_conn;
  61         struct dcesrv_call_state *call;
  62         struct iovec iov;
  63 };
  64
  65 static void dcesrv_sock_report_output_data(struct dcesrv_connection *dce_conn)
  66 {
  67         struct dcesrv_call_state *call;
  68
  69         call = dce_conn->call_list;
  70         if (!call || !call->replies) {
  71                 return;
  72         }
  73
  74         while (call->replies) {
  75                 struct data_blob_list_item *rep = call->replies;
  76                 struct dcesrv_sock_reply_state *substate;
  77                 struct tevent_req *subreq;
  78
  79                 substate = talloc(call, struct dcesrv_sock_reply_state);
  80                 if (!substate) {
  81                         dcesrv_terminate_connection(dce_conn, "no memory");
  82                         return;
  83                 }
  84
  85                 substate->dce_conn = dce_conn;
  86                 substate->call = NULL;
  87
  88                 DLIST_REMOVE(call->replies, rep);
  89
  90                 if (call->replies == NULL) {
  91                         substate->call = call;
  92                 }
  93
  94                 substate->iov.iov_base = rep->blob.data;
  95                 substate->iov.iov_len = rep->blob.length;
  96
  97                 subreq = tstream_writev_queue_send(substate,
  98                                                    dce_conn->event_ctx,
  99                                                    dce_conn->stream,
 100                                                    dce_conn->send_queue,
 101                                                    &substate->iov, 1);
 102                 if (!subreq) {
 103                         dcesrv_terminate_connection(dce_conn, "no memory");
 104                         return;
 105                 }
 106                 tevent_req_set_callback(subreq, dcesrv_sock_reply_done,
 107                                         substate);
 108         }
 109
 110         DLIST_REMOVE(call->conn->call_list, call);
 111         call->list = DCESRV_LIST_NONE;
 112 }
 113
 114 static void dcesrv_sock_reply_done(struct tevent_req *subreq)
 115 {
 116         struct dcesrv_sock_reply_state *substate = tevent_req_callback_data(subreq,
 117                                                 struct dcesrv_sock_reply_state);
 118         int ret;
 119         int sys_errno;
 120         NTSTATUS status;
 121         struct dcesrv_call_state *call = substate->call;
 122
 123         ret = tstream_writev_queue_recv(subreq, &sys_errno);
 124         TALLOC_FREE(subreq);
 125         if (ret == -1) {
 126                 status = map_nt_error_from_unix(sys_errno);
 127                 dcesrv_terminate_connection(substate->dce_conn, nt_errstr(status));
 128                 return;
 129         }
 130
 131         talloc_free(substate);
 132         if (call) {
 133                 talloc_free(call);
 134         }
 135 }
 136
 137 static struct socket_address *dcesrv_sock_get_my_addr(struct dcesrv_connection *dcesrv_conn, TALLOC_CTX *mem_ctx)
 138 {
 139         struct stream_connection *srv_conn;
 140         srv_conn = talloc_get_type(dcesrv_conn->transport.private_data,
 141                                    struct stream_connection);
 142
 143         return socket_get_my_addr(srv_conn->socket, mem_ctx);
 144 }
 145
 146 static struct socket_address *dcesrv_sock_get_peer_addr(struct dcesrv_connection *dcesrv_conn, TALLOC_CTX *mem_ctx)
 147 {
 148         struct stream_connection *srv_conn;
 149         srv_conn = talloc_get_type(dcesrv_conn->transport.private_data,
 150                                    struct stream_connection);
 151
 152         return socket_get_peer_addr(srv_conn->socket, mem_ctx);
 153 }
 154
 155 struct dcerpc_read_ncacn_packet_state {
 156         struct {
 157                 struct smb_iconv_convenience *smb_iconv_c;
 158         } caller;
 159         DATA_BLOB buffer;
 160         struct ncacn_packet *pkt;
 161 };
 162
 163 static int dcerpc_read_ncacn_packet_next_vector(struct tstream_context *stream,
 164                                                 void *private_data,
 165                                                 TALLOC_CTX *mem_ctx,
 166                                                 struct iovec **_vector,
 167                                                 size_t *_count);
 168 static void dcerpc_read_ncacn_packet_done(struct tevent_req *subreq);
 169
 170 static struct tevent_req *dcerpc_read_ncacn_packet_send(TALLOC_CTX *mem_ctx,
 171                                                  struct tevent_context *ev,
 172                                                  struct tstream_context *stream,
 173                                                  struct smb_iconv_convenience *ic)
 174 {
 175         struct tevent_req *req;
 176         struct dcerpc_read_ncacn_packet_state *state;
 177         struct tevent_req *subreq;
 178
 179         req = tevent_req_create(mem_ctx, &state,
 180                                 struct dcerpc_read_ncacn_packet_state);
 181         if (req == NULL) {
 182                 return NULL;
 183         }
 184
 185         state->caller.smb_iconv_c = ic;
 186         state->buffer = data_blob_const(NULL, 0);
 187         state->pkt = talloc(state, struct ncacn_packet);
 188         if (tevent_req_nomem(state->pkt, req)) {
 189                 goto post;
 190         }
 191
 192         subreq = tstream_readv_pdu_send(state, ev,
 193                                         stream,
 194                                         dcerpc_read_ncacn_packet_next_vector,
 195                                         state);
 196         if (tevent_req_nomem(subreq, req)) {
 197                 goto post;
 198         }
 199         tevent_req_set_callback(subreq, dcerpc_read_ncacn_packet_done, req);
 200
 201         return req;
 202  post:
 203         tevent_req_post(req, ev);
 204         return req;
 205 }
 206
 207 static int dcerpc_read_ncacn_packet_next_vector(struct tstream_context *stream,
 208                                                 void *private_data,
 209                                                 TALLOC_CTX *mem_ctx,
 210                                                 struct iovec **_vector,
 211                                                 size_t *_count)
 212 {
 213         struct dcerpc_read_ncacn_packet_state *state =
 214                 talloc_get_type_abort(private_data,
 215                 struct dcerpc_read_ncacn_packet_state);
 216         struct iovec *vector;
 217         off_t ofs = 0;
 218
 219         if (state->buffer.length == 0) {
 220                 /* first get enough to read the fragment length */
 221                 ofs = 0;
 222                 state->buffer.length = DCERPC_FRAG_LEN_OFFSET + 2;
 223                 state->buffer.data = talloc_array(state, uint8_t,
 224                                                   state->buffer.length);
 225                 if (!state->buffer.data) {
 226                         return -1;
 227                 }
 228         } else if (state->buffer.length == (DCERPC_FRAG_LEN_OFFSET + 2)) {
 229                 /* now read the fragment length and allocate the full buffer */
 230                 size_t frag_len = dcerpc_get_frag_length(&state->buffer);
 231
 232                 ofs = state->buffer.length;
 233
 234                 state->buffer.data = talloc_realloc(state,
 235                                                     state->buffer.data,
 236                                                     uint8_t, frag_len);
 237                 if (!state->buffer.data) {
 238                         return -1;
 239                 }
 240                 state->buffer.length = frag_len;
 241         } else {
 242                 /* if we reach this we have a full fragment */
 243                 *_vector = NULL;
 244                 *_count = 0;
 245                 return 0;
 246         }
 247
 248         /* now create the vector that we want to be filled */
 249         vector = talloc_array(mem_ctx, struct iovec, 1);
 250         if (!vector) {
 251                 return -1;
 252         }
 253
 254         vector[0].iov_base = state->buffer.data + ofs;
 255         vector[0].iov_len = state->buffer.length - ofs;
 256
 257         *_vector = vector;
 258         *_count = 1;
 259         return 0;
 260 }
 261
 262 static void dcerpc_read_ncacn_packet_done(struct tevent_req *subreq)
 263 {
 264         struct tevent_req *req = tevent_req_callback_data(subreq,
 265                                  struct tevent_req);
 266         struct dcerpc_read_ncacn_packet_state *state = tevent_req_data(req,
 267                                         struct dcerpc_read_ncacn_packet_state);
 268         int ret;
 269         int sys_errno;
 270         struct ndr_pull *ndr;
 271         enum ndr_err_code ndr_err;
 272         NTSTATUS status;
 273
 274         ret = tstream_readv_pdu_recv(subreq, &sys_errno);
 275         TALLOC_FREE(subreq);
 276         if (ret == -1) {
 277                 status = map_nt_error_from_unix(sys_errno);
 278                 tevent_req_nterror(req, status);
 279                 return;
 280         }
 281
 282         ndr = ndr_pull_init_blob(&state->buffer,
 283                                  state->pkt,
 284                                  state->caller.smb_iconv_c);
 285         if (tevent_req_nomem(ndr, req)) {
 286                 return;
 287         }
 288
 289         if (!(CVAL(ndr->data, DCERPC_DREP_OFFSET) & DCERPC_DREP_LE)) {
 290                 ndr->flags |= LIBNDR_FLAG_BIGENDIAN;
 291         }
 292
 293         if (CVAL(ndr->data, DCERPC_PFC_OFFSET) & DCERPC_PFC_FLAG_OBJECT_UUID) {
 294                 ndr->flags |= LIBNDR_FLAG_OBJECT_PRESENT;
 295         }
 296
 297         ndr_err = ndr_pull_ncacn_packet(ndr, NDR_SCALARS|NDR_BUFFERS, state->pkt);
 298         TALLOC_FREE(ndr);
 299         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 300                 status = ndr_map_error2ntstatus(ndr_err);
 301                 tevent_req_nterror(req, status);
 302                 return;
 303         }
 304
 305         tevent_req_done(req);
 306 }
 307
 308 static NTSTATUS dcerpc_read_ncacn_packet_recv(struct tevent_req *req,
 309                                        TALLOC_CTX *mem_ctx,
 310                                        struct ncacn_packet **pkt,
 311                                        DATA_BLOB *buffer)
 312 {
 313         struct dcerpc_read_ncacn_packet_state *state = tevent_req_data(req,
 314                                         struct dcerpc_read_ncacn_packet_state);
 315         NTSTATUS status;
 316
 317         if (tevent_req_is_nterror(req, &status)) {
 318                 tevent_req_received(req);
 319                 return status;
 320         }
 321
 322         *pkt = talloc_move(mem_ctx, &state->pkt);
 323         if (buffer) {
 324                 buffer->data = talloc_move(mem_ctx, &state->buffer.data);
 325                 buffer->length = state->buffer.length;
 326         }
 327
 328         tevent_req_received(req);
 329         return NT_STATUS_OK;
 330 }
 331
 332 static void dcesrv_read_fragment_done(struct tevent_req *subreq);
 333
 334 static void dcesrv_sock_accept(struct stream_connection *srv_conn)
 335 {
 336         NTSTATUS status;
 337         struct dcesrv_socket_context *dcesrv_sock =
 338                 talloc_get_type(srv_conn->private_data, struct dcesrv_socket_context);
 339         struct dcesrv_connection *dcesrv_conn = NULL;
 340         int ret;
 341         struct tevent_req *subreq;
 342         struct loadparm_context *lp_ctx = dcesrv_sock->dcesrv_ctx->lp_ctx;
 343
 344         if (!srv_conn->session_info) {
 345                 status = auth_anonymous_session_info(srv_conn,
 346                                                      srv_conn->event.ctx,
 347                                                      lp_ctx,
 348                                                      &srv_conn->session_info);
 349                 if (!NT_STATUS_IS_OK(status)) {
 350                         DEBUG(0,("dcesrv_sock_accept: auth_anonymous_session_info failed: %s\n",
 351                                 nt_errstr(status)));
 352                         stream_terminate_connection(srv_conn, nt_errstr(status));
 353                         return;
 354                 }
 355         }
 356
 357         status = dcesrv_endpoint_connect(dcesrv_sock->dcesrv_ctx,
 358                                          srv_conn,
 359                                          dcesrv_sock->endpoint,
 360                                          srv_conn->session_info,
 361                                          srv_conn->event.ctx,
 362                                          srv_conn->msg_ctx,
 363                                          srv_conn->server_id,
 364                                          DCESRV_CALL_STATE_FLAG_MAY_ASYNC,
 365                                          &dcesrv_conn);
 366         if (!NT_STATUS_IS_OK(status)) {
 367                 DEBUG(0,("dcesrv_sock_accept: dcesrv_endpoint_connect failed: %s\n",
 368                         nt_errstr(status)));
 369                 stream_terminate_connection(srv_conn, nt_errstr(status));
 370                 return;
 371         }
 372
 373         dcesrv_conn->transport.private_data             = srv_conn;
 374         dcesrv_conn->transport.report_output_data       = dcesrv_sock_report_output_data;
 375         dcesrv_conn->transport.get_my_addr              = dcesrv_sock_get_my_addr;
 376         dcesrv_conn->transport.get_peer_addr            = dcesrv_sock_get_peer_addr;
 377
 378         TALLOC_FREE(srv_conn->event.fde);
 379
 380         dcesrv_conn->send_queue = tevent_queue_create(dcesrv_conn, "dcesrv send queue");
 381         if (!dcesrv_conn->send_queue) {
 382                 status = NT_STATUS_NO_MEMORY;
 383                 DEBUG(0,("dcesrv_sock_accept: tevent_queue_create(%s)\n",
 384                         nt_errstr(status)));
 385                 stream_terminate_connection(srv_conn, nt_errstr(status));
 386                 return;
 387         }
 388
 389         if (dcesrv_sock->endpoint->ep_description->transport == NCACN_NP) {
 390                 dcesrv_conn->auth_state.session_key = dcesrv_inherited_session_key;
 391                 ret = tstream_npa_existing_socket(dcesrv_conn,
 392                                                   socket_get_fd(srv_conn->socket),
 393                                                   FILE_TYPE_MESSAGE_MODE_PIPE,
 394                                                   &dcesrv_conn->stream);
 395         } else {
 396                 ret = tstream_bsd_existing_socket(dcesrv_conn,
 397                                                   socket_get_fd(srv_conn->socket),
 398                                                   &dcesrv_conn->stream);
 399         }
 400         if (ret == -1) {
 401                 status = map_nt_error_from_unix(errno);
 402                 DEBUG(0,("dcesrv_sock_accept: failed to setup tstream: %s\n",
 403                         nt_errstr(status)));
 404                 stream_terminate_connection(srv_conn, nt_errstr(status));
 405                 return;
 406         }
 407
 408         srv_conn->private_data = dcesrv_conn;
 409
 410         irpc_add_name(srv_conn->msg_ctx, "rpc_server");
 411
 412         subreq = dcerpc_read_ncacn_packet_send(dcesrv_conn,
 413                                                dcesrv_conn->event_ctx,
 414                                                dcesrv_conn->stream,
 415                                                lp_iconv_convenience(lp_ctx));
 416         if (!subreq) {
 417                 status = NT_STATUS_NO_MEMORY;
 418                 DEBUG(0,("dcesrv_sock_accept: dcerpc_read_fragment_buffer_send(%s)\n",
 419                         nt_errstr(status)));
 420                 stream_terminate_connection(srv_conn, nt_errstr(status));
 421                 return;
 422         }
 423         tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dcesrv_conn);
 424
 425         return;
 426 }
 427
 428 static void dcesrv_read_fragment_done(struct tevent_req *subreq)
 429 {
 430         struct dcesrv_connection *dce_conn = tevent_req_callback_data(subreq,
 431                                              struct dcesrv_connection);
 432         struct ncacn_packet *pkt;
 433         DATA_BLOB buffer;
 434         NTSTATUS status;
 435         struct loadparm_context *lp_ctx = dce_conn->dce_ctx->lp_ctx;
 436
 437         status = dcerpc_read_ncacn_packet_recv(subreq, dce_conn,
 438                                                &pkt, &buffer);
 439         TALLOC_FREE(subreq);
 440         if (!NT_STATUS_IS_OK(status)) {
 441                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 442                 return;
 443         }
 444
 445         status = dcesrv_process_ncacn_packet(dce_conn, pkt, buffer);
 446         if (!NT_STATUS_IS_OK(status)) {
 447                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 448                 return;
 449         }
 450
 451         subreq = dcerpc_read_ncacn_packet_send(dce_conn,
 452                                                dce_conn->event_ctx,
 453                                                dce_conn->stream,
 454                                                lp_iconv_convenience(lp_ctx));
 455         if (!subreq) {
 456                 status = NT_STATUS_NO_MEMORY;
 457                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 458                 return;
 459         }
 460         tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dce_conn);
 461 }
 462
 463 static void dcesrv_sock_recv(struct stream_connection *conn, uint16_t flags)
 464 {
 465         struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
 466                                              struct dcesrv_connection);
 467         dcesrv_terminate_connection(dce_conn, "dcesrv_sock_recv triggered");
 468 }
 469
 470 static void dcesrv_sock_send(struct stream_connection *conn, uint16_t flags)
 471 {
 472         struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
 473                                              struct dcesrv_connection);
 474         dcesrv_terminate_connection(dce_conn, "dcesrv_sock_send triggered");
 475 }
 476
 477
 478 static const struct stream_server_ops dcesrv_stream_ops = {
 479         .name                   = "rpc",
 480         .accept_connection      = dcesrv_sock_accept,
 481         .recv_handler           = dcesrv_sock_recv,
 482         .send_handler           = dcesrv_sock_send,
 483 };
 484
 485
 486
 487 static NTSTATUS dcesrv_add_ep_unix(struct dcesrv_context *dce_ctx,
 488                                    struct loadparm_context *lp_ctx,
 489                                    struct dcesrv_endpoint *e,
 490                             struct tevent_context *event_ctx, const struct model_ops *model_ops)
 491 {
 492         struct dcesrv_socket_context *dcesrv_sock;
 493         uint16_t port = 1;
 494         NTSTATUS status;
 495
 496         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 497         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 498
 499         /* remember the endpoint of this socket */
 500         dcesrv_sock->endpoint           = e;
 501         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 502
 503         status = stream_setup_socket(event_ctx, lp_ctx,
 504                                      model_ops, &dcesrv_stream_ops,
 505                                      "unix", e->ep_description->endpoint, &port,
 506                                      lp_socket_options(lp_ctx),
 507                                      dcesrv_sock);
 508         if (!NT_STATUS_IS_OK(status)) {
 509                 DEBUG(0,("service_setup_stream_socket(path=%s) failed - %s\n",
 510                          e->ep_description->endpoint, nt_errstr(status)));
 511         }
 512
 513         return status;
 514 }
 515
 516 static NTSTATUS dcesrv_add_ep_ncalrpc(struct dcesrv_context *dce_ctx,
 517                                       struct loadparm_context *lp_ctx,
 518                                       struct dcesrv_endpoint *e,
 519                                       struct tevent_context *event_ctx, const struct model_ops *model_ops)
 520 {
 521         struct dcesrv_socket_context *dcesrv_sock;
 522         uint16_t port = 1;
 523         char *full_path;
 524         NTSTATUS status;
 525
 526         if (!e->ep_description->endpoint) {
 527                 /* No identifier specified: use DEFAULT.
 528                  * DO NOT hardcode this value anywhere else. Rather, specify
 529                  * no endpoint and let the epmapper worry about it. */
 530                 e->ep_description->endpoint = talloc_strdup(dce_ctx, "DEFAULT");
 531         }
 532
 533         full_path = talloc_asprintf(dce_ctx, "%s/%s", lp_ncalrpc_dir(lp_ctx),
 534                                     e->ep_description->endpoint);
 535
 536         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 537         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 538
 539         /* remember the endpoint of this socket */
 540         dcesrv_sock->endpoint           = e;
 541         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 542
 543         status = stream_setup_socket(event_ctx, lp_ctx,
 544                                      model_ops, &dcesrv_stream_ops,
 545                                      "unix", full_path, &port,
 546                                      lp_socket_options(lp_ctx),
 547                                      dcesrv_sock);
 548         if (!NT_STATUS_IS_OK(status)) {
 549                 DEBUG(0,("service_setup_stream_socket(identifier=%s,path=%s) failed - %s\n",
 550                          e->ep_description->endpoint, full_path, nt_errstr(status)));
 551         }
 552         return status;
 553 }
 554
 555 static NTSTATUS dcesrv_add_ep_np(struct dcesrv_context *dce_ctx,
 556                                  struct loadparm_context *lp_ctx,
 557                                  struct dcesrv_endpoint *e,
 558                                  struct tevent_context *event_ctx, const struct model_ops *model_ops)
 559 {
 560         struct dcesrv_socket_context *dcesrv_sock;
 561         NTSTATUS status;
 562
 563         if (e->ep_description->endpoint == NULL) {
 564                 DEBUG(0, ("Endpoint mandatory for named pipes\n"));
 565                 return NT_STATUS_INVALID_PARAMETER;
 566         }
 567
 568         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 569         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 570
 571         /* remember the endpoint of this socket */
 572         dcesrv_sock->endpoint           = e;
 573         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 574
 575         status = stream_setup_named_pipe(event_ctx, lp_ctx,
 576                                          model_ops, &dcesrv_stream_ops,
 577                                          e->ep_description->endpoint, dcesrv_sock);
 578         if (!NT_STATUS_IS_OK(status)) {
 579                 DEBUG(0,("stream_setup_named_pipe(pipe=%s) failed - %s\n",
 580                          e->ep_description->endpoint, nt_errstr(status)));
 581                 return status;
 582         }
 583
 584         return NT_STATUS_OK;
 585 }
 586
 587 /*
 588   add a socket address to the list of events, one event per dcerpc endpoint
 589 */
 590 static NTSTATUS add_socket_rpc_tcp_iface(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
 591                                          struct tevent_context *event_ctx, const struct model_ops *model_ops,
 592                                          const char *address)
 593 {
 594         struct dcesrv_socket_context *dcesrv_sock;
 595         uint16_t port = 0;
 596         NTSTATUS status;
 597
 598         if (e->ep_description->endpoint) {
 599                 port = atoi(e->ep_description->endpoint);
 600         }
 601
 602         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 603         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 604
 605         /* remember the endpoint of this socket */
 606         dcesrv_sock->endpoint           = e;
 607         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 608
 609         status = stream_setup_socket(event_ctx, dce_ctx->lp_ctx,
 610                                      model_ops, &dcesrv_stream_ops,
 611                                      "ipv4", address, &port,
 612                                      lp_socket_options(dce_ctx->lp_ctx),
 613                                      dcesrv_sock);
 614         if (!NT_STATUS_IS_OK(status)) {
 615                 DEBUG(0,("service_setup_stream_socket(address=%s,port=%u) failed - %s\n",
 616                          address, port, nt_errstr(status)));
 617         }
 618
 619         if (e->ep_description->endpoint == NULL) {
 620                 e->ep_description->endpoint = talloc_asprintf(dce_ctx, "%d", port);
 621         }
 622
 623         return status;
 624 }
 625
 626 static NTSTATUS dcesrv_add_ep_tcp(struct dcesrv_context *dce_ctx,
 627                                   struct loadparm_context *lp_ctx,
 628                                   struct dcesrv_endpoint *e,
 629                                   struct tevent_context *event_ctx, const struct model_ops *model_ops)
 630 {
 631         NTSTATUS status;
 632
 633         /* Add TCP/IP sockets */
 634         if (lp_interfaces(lp_ctx) && lp_bind_interfaces_only(lp_ctx)) {
 635                 int num_interfaces;
 636                 int i;
 637                 struct interface *ifaces;
 638
 639                 load_interfaces(dce_ctx, lp_interfaces(lp_ctx), &ifaces);
 640
 641                 num_interfaces = iface_count(ifaces);
 642                 for(i = 0; i < num_interfaces; i++) {
 643                         const char *address = iface_n_ip(ifaces, i);
 644                         status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, address);
 645                         NT_STATUS_NOT_OK_RETURN(status);
 646                 }
 647         } else {
 648                 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops,
 649                                                   lp_socket_address(lp_ctx));
 650                 NT_STATUS_NOT_OK_RETURN(status);
 651         }
 652
 653         return NT_STATUS_OK;
 654 }
 655
 656 NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
 657                        struct loadparm_context *lp_ctx,
 658                        struct dcesrv_endpoint *e,
 659                        struct tevent_context *event_ctx,
 660                        const struct model_ops *model_ops)
 661 {
 662         switch (e->ep_description->transport) {
 663         case NCACN_UNIX_STREAM:
 664                 return dcesrv_add_ep_unix(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 665
 666         case NCALRPC:
 667                 return dcesrv_add_ep_ncalrpc(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 668
 669         case NCACN_IP_TCP:
 670                 return dcesrv_add_ep_tcp(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 671
 672         case NCACN_NP:
 673                 return dcesrv_add_ep_np(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 674
 675         default:
 676                 return NT_STATUS_NOT_SUPPORTED;
 677         }
 678 }
 679
 680 /*
 681   open the dcerpc server sockets
 682 */
 683 static void dcesrv_task_init(struct task_server *task)
 684 {
 685         NTSTATUS status;
 686         struct dcesrv_context *dce_ctx;
 687         struct dcesrv_endpoint *e;
 688
 689         dcerpc_server_init(task->lp_ctx);
 690
 691         task_server_set_title(task, "task[dcesrv]");
 692
 693         status = dcesrv_init_context(task->event_ctx,
 694                                      task->lp_ctx,
 695                                      lp_dcerpc_endpoint_servers(task->lp_ctx),
 696                                      &dce_ctx);
 697         if (!NT_STATUS_IS_OK(status)) goto failed;
 698
 699         /* Make sure the directory for NCALRPC exists */
 700         if (!directory_exist(lp_ncalrpc_dir(task->lp_ctx))) {
 701                 mkdir(lp_ncalrpc_dir(task->lp_ctx), 0755);
 702         }
 703
 704         for (e=dce_ctx->endpoint_list;e;e=e->next) {
 705                 status = dcesrv_add_ep(dce_ctx, task->lp_ctx, e, task->event_ctx, task->model_ops);
 706                 if (!NT_STATUS_IS_OK(status)) goto failed;
 707         }
 708
 709         return;
 710 failed:
 711         task_server_terminate(task, "Failed to startup dcerpc server task", true);
 712 }
 713
 714 NTSTATUS server_service_rpc_init(void)
 715 {
 716
 717         return register_server_service("rpc", dcesrv_task_init);
 718 }