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 "auth/gensec/gensec.h"
  28 #include "../lib/util/dlinklist.h"
  29 #include "rpc_server/dcerpc_server.h"
  30 #include "rpc_server/dcerpc_server_proto.h"
  31 #include "rpc_server/service_rpc.h"
  32 #include "lib/events/events.h"
  33 #include "smbd/service_task.h"
  34 #include "smbd/service_stream.h"
  35 #include "smbd/service.h"
  36 #include "system/filesys.h"
  37 #include "libcli/security/security.h"
  38 #include "lib/socket/socket.h"
  39 #include "lib/messaging/irpc.h"
  40 #include "system/network.h"
  41 #include "lib/socket/netif.h"
  42 #include "param/param.h"
  43 #include "../lib/tsocket/tsocket.h"
  44 #include "librpc/rpc/dcerpc_proto.h"
  45 #include "../lib/util/tevent_ntstatus.h"
  46 #include "libcli/raw/smb.h"
  47 #include "../libcli/named_pipe_auth/npa_tstream.h"
  48
  49 struct dcesrv_socket_context {
  50         const struct dcesrv_endpoint *endpoint;
  51         struct dcesrv_context *dcesrv_ctx;
  52 };
  53
  54 static void dcesrv_terminate_connection(struct dcesrv_connection *dce_conn, const char *reason)
  55 {
  56         struct stream_connection *srv_conn;
  57         srv_conn = talloc_get_type(dce_conn->transport.private_data,
  58                                    struct stream_connection);
  59
  60         stream_terminate_connection(srv_conn, reason);
  61 }
  62
  63 static void dcesrv_sock_reply_done(struct tevent_req *subreq);
  64
  65 struct dcesrv_sock_reply_state {
  66         struct dcesrv_connection *dce_conn;
  67         struct dcesrv_call_state *call;
  68         struct iovec iov;
  69 };
  70
  71 static void dcesrv_sock_report_output_data(struct dcesrv_connection *dce_conn)
  72 {
  73         struct dcesrv_call_state *call;
  74
  75         call = dce_conn->call_list;
  76         if (!call || !call->replies) {
  77                 return;
  78         }
  79
  80         while (call->replies) {
  81                 struct data_blob_list_item *rep = call->replies;
  82                 struct dcesrv_sock_reply_state *substate;
  83                 struct tevent_req *subreq;
  84
  85                 substate = talloc(call, struct dcesrv_sock_reply_state);
  86                 if (!substate) {
  87                         dcesrv_terminate_connection(dce_conn, "no memory");
  88                         return;
  89                 }
  90
  91                 substate->dce_conn = dce_conn;
  92                 substate->call = NULL;
  93
  94                 DLIST_REMOVE(call->replies, rep);
  95
  96                 if (call->replies == NULL) {
  97                         substate->call = call;
  98                 }
  99
 100                 substate->iov.iov_base = rep->blob.data;
 101                 substate->iov.iov_len = rep->blob.length;
 102
 103                 subreq = tstream_writev_queue_send(substate,
 104                                                    dce_conn->event_ctx,
 105                                                    dce_conn->stream,
 106                                                    dce_conn->send_queue,
 107                                                    &substate->iov, 1);
 108                 if (!subreq) {
 109                         dcesrv_terminate_connection(dce_conn, "no memory");
 110                         return;
 111                 }
 112                 tevent_req_set_callback(subreq, dcesrv_sock_reply_done,
 113                                         substate);
 114         }
 115
 116         DLIST_REMOVE(call->conn->call_list, call);
 117         call->list = DCESRV_LIST_NONE;
 118 }
 119
 120 static void dcesrv_sock_reply_done(struct tevent_req *subreq)
 121 {
 122         struct dcesrv_sock_reply_state *substate = tevent_req_callback_data(subreq,
 123                                                 struct dcesrv_sock_reply_state);
 124         int ret;
 125         int sys_errno;
 126         NTSTATUS status;
 127         struct dcesrv_call_state *call = substate->call;
 128
 129         ret = tstream_writev_queue_recv(subreq, &sys_errno);
 130         TALLOC_FREE(subreq);
 131         if (ret == -1) {
 132                 status = map_nt_error_from_unix(sys_errno);
 133                 dcesrv_terminate_connection(substate->dce_conn, nt_errstr(status));
 134                 return;
 135         }
 136
 137         talloc_free(substate);
 138         if (call) {
 139                 talloc_free(call);
 140         }
 141 }
 142
 143 static struct socket_address *dcesrv_sock_get_my_addr(struct dcesrv_connection *dcesrv_conn, TALLOC_CTX *mem_ctx)
 144 {
 145         struct stream_connection *srv_conn;
 146         srv_conn = talloc_get_type(dcesrv_conn->transport.private_data,
 147                                    struct stream_connection);
 148
 149         return socket_get_my_addr(srv_conn->socket, mem_ctx);
 150 }
 151
 152 static struct socket_address *dcesrv_sock_get_peer_addr(struct dcesrv_connection *dcesrv_conn, TALLOC_CTX *mem_ctx)
 153 {
 154         struct stream_connection *srv_conn;
 155         srv_conn = talloc_get_type(dcesrv_conn->transport.private_data,
 156                                    struct stream_connection);
 157
 158         return socket_get_peer_addr(srv_conn->socket, mem_ctx);
 159 }
 160
 161 struct dcerpc_read_ncacn_packet_state {
 162         struct {
 163                 struct smb_iconv_convenience *smb_iconv_c;
 164         } caller;
 165         DATA_BLOB buffer;
 166         struct ncacn_packet *pkt;
 167 };
 168
 169 static int dcerpc_read_ncacn_packet_next_vector(struct tstream_context *stream,
 170                                                 void *private_data,
 171                                                 TALLOC_CTX *mem_ctx,
 172                                                 struct iovec **_vector,
 173                                                 size_t *_count);
 174 static void dcerpc_read_ncacn_packet_done(struct tevent_req *subreq);
 175
 176 static struct tevent_req *dcerpc_read_ncacn_packet_send(TALLOC_CTX *mem_ctx,
 177                                                  struct tevent_context *ev,
 178                                                  struct tstream_context *stream,
 179                                                  struct smb_iconv_convenience *ic)
 180 {
 181         struct tevent_req *req;
 182         struct dcerpc_read_ncacn_packet_state *state;
 183         struct tevent_req *subreq;
 184
 185         req = tevent_req_create(mem_ctx, &state,
 186                                 struct dcerpc_read_ncacn_packet_state);
 187         if (req == NULL) {
 188                 return NULL;
 189         }
 190
 191         state->caller.smb_iconv_c = ic;
 192         state->buffer = data_blob_const(NULL, 0);
 193         state->pkt = talloc(state, struct ncacn_packet);
 194         if (tevent_req_nomem(state->pkt, req)) {
 195                 goto post;
 196         }
 197
 198         subreq = tstream_readv_pdu_send(state, ev,
 199                                         stream,
 200                                         dcerpc_read_ncacn_packet_next_vector,
 201                                         state);
 202         if (tevent_req_nomem(subreq, req)) {
 203                 goto post;
 204         }
 205         tevent_req_set_callback(subreq, dcerpc_read_ncacn_packet_done, req);
 206
 207         return req;
 208  post:
 209         tevent_req_post(req, ev);
 210         return req;
 211 }
 212
 213 static int dcerpc_read_ncacn_packet_next_vector(struct tstream_context *stream,
 214                                                 void *private_data,
 215                                                 TALLOC_CTX *mem_ctx,
 216                                                 struct iovec **_vector,
 217                                                 size_t *_count)
 218 {
 219         struct dcerpc_read_ncacn_packet_state *state =
 220                 talloc_get_type_abort(private_data,
 221                 struct dcerpc_read_ncacn_packet_state);
 222         struct iovec *vector;
 223         off_t ofs = 0;
 224
 225         if (state->buffer.length == 0) {
 226                 /* first get enough to read the fragment length */
 227                 ofs = 0;
 228                 state->buffer.length = DCERPC_FRAG_LEN_OFFSET + 2;
 229                 state->buffer.data = talloc_array(state, uint8_t,
 230                                                   state->buffer.length);
 231                 if (!state->buffer.data) {
 232                         return -1;
 233                 }
 234         } else if (state->buffer.length == (DCERPC_FRAG_LEN_OFFSET + 2)) {
 235                 /* now read the fragment length and allocate the full buffer */
 236                 size_t frag_len = dcerpc_get_frag_length(&state->buffer);
 237
 238                 ofs = state->buffer.length;
 239
 240                 state->buffer.data = talloc_realloc(state,
 241                                                     state->buffer.data,
 242                                                     uint8_t, frag_len);
 243                 if (!state->buffer.data) {
 244                         return -1;
 245                 }
 246                 state->buffer.length = frag_len;
 247         } else {
 248                 /* if we reach this we have a full fragment */
 249                 *_vector = NULL;
 250                 *_count = 0;
 251                 return 0;
 252         }
 253
 254         /* now create the vector that we want to be filled */
 255         vector = talloc_array(mem_ctx, struct iovec, 1);
 256         if (!vector) {
 257                 return -1;
 258         }
 259
 260         vector[0].iov_base = state->buffer.data + ofs;
 261         vector[0].iov_len = state->buffer.length - ofs;
 262
 263         *_vector = vector;
 264         *_count = 1;
 265         return 0;
 266 }
 267
 268 static void dcerpc_read_ncacn_packet_done(struct tevent_req *subreq)
 269 {
 270         struct tevent_req *req = tevent_req_callback_data(subreq,
 271                                  struct tevent_req);
 272         struct dcerpc_read_ncacn_packet_state *state = tevent_req_data(req,
 273                                         struct dcerpc_read_ncacn_packet_state);
 274         int ret;
 275         int sys_errno;
 276         struct ndr_pull *ndr;
 277         enum ndr_err_code ndr_err;
 278         NTSTATUS status;
 279
 280         ret = tstream_readv_pdu_recv(subreq, &sys_errno);
 281         TALLOC_FREE(subreq);
 282         if (ret == -1) {
 283                 status = map_nt_error_from_unix(sys_errno);
 284                 tevent_req_nterror(req, status);
 285                 return;
 286         }
 287
 288         ndr = ndr_pull_init_blob(&state->buffer,
 289                                  state->pkt,
 290                                  state->caller.smb_iconv_c);
 291         if (tevent_req_nomem(ndr, req)) {
 292                 return;
 293         }
 294
 295         if (!(CVAL(ndr->data, DCERPC_DREP_OFFSET) & DCERPC_DREP_LE)) {
 296                 ndr->flags |= LIBNDR_FLAG_BIGENDIAN;
 297         }
 298
 299         if (CVAL(ndr->data, DCERPC_PFC_OFFSET) & DCERPC_PFC_FLAG_OBJECT_UUID) {
 300                 ndr->flags |= LIBNDR_FLAG_OBJECT_PRESENT;
 301         }
 302
 303         ndr_err = ndr_pull_ncacn_packet(ndr, NDR_SCALARS|NDR_BUFFERS, state->pkt);
 304         TALLOC_FREE(ndr);
 305         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 306                 status = ndr_map_error2ntstatus(ndr_err);
 307                 tevent_req_nterror(req, status);
 308                 return;
 309         }
 310
 311         tevent_req_done(req);
 312 }
 313
 314 static NTSTATUS dcerpc_read_ncacn_packet_recv(struct tevent_req *req,
 315                                        TALLOC_CTX *mem_ctx,
 316                                        struct ncacn_packet **pkt,
 317                                        DATA_BLOB *buffer)
 318 {
 319         struct dcerpc_read_ncacn_packet_state *state = tevent_req_data(req,
 320                                         struct dcerpc_read_ncacn_packet_state);
 321         NTSTATUS status;
 322
 323         if (tevent_req_is_nterror(req, &status)) {
 324                 tevent_req_received(req);
 325                 return status;
 326         }
 327
 328         *pkt = talloc_move(mem_ctx, &state->pkt);
 329         if (buffer) {
 330                 buffer->data = talloc_move(mem_ctx, &state->buffer.data);
 331                 buffer->length = state->buffer.length;
 332         }
 333
 334         tevent_req_received(req);
 335         return NT_STATUS_OK;
 336 }
 337
 338 static void dcesrv_read_fragment_done(struct tevent_req *subreq);
 339
 340 static void dcesrv_sock_accept(struct stream_connection *srv_conn)
 341 {
 342         NTSTATUS status;
 343         struct dcesrv_socket_context *dcesrv_sock =
 344                 talloc_get_type(srv_conn->private_data, struct dcesrv_socket_context);
 345         struct dcesrv_connection *dcesrv_conn = NULL;
 346         int ret;
 347         struct tevent_req *subreq;
 348         struct loadparm_context *lp_ctx = dcesrv_sock->dcesrv_ctx->lp_ctx;
 349
 350         if (!srv_conn->session_info) {
 351                 status = auth_anonymous_session_info(srv_conn,
 352                                                      srv_conn->event.ctx,
 353                                                      lp_ctx,
 354                                                      &srv_conn->session_info);
 355                 if (!NT_STATUS_IS_OK(status)) {
 356                         DEBUG(0,("dcesrv_sock_accept: auth_anonymous_session_info failed: %s\n",
 357                                 nt_errstr(status)));
 358                         stream_terminate_connection(srv_conn, nt_errstr(status));
 359                         return;
 360                 }
 361         }
 362
 363         status = dcesrv_endpoint_connect(dcesrv_sock->dcesrv_ctx,
 364                                          srv_conn,
 365                                          dcesrv_sock->endpoint,
 366                                          srv_conn->session_info,
 367                                          srv_conn->event.ctx,
 368                                          srv_conn->msg_ctx,
 369                                          srv_conn->server_id,
 370                                          DCESRV_CALL_STATE_FLAG_MAY_ASYNC,
 371                                          &dcesrv_conn);
 372         if (!NT_STATUS_IS_OK(status)) {
 373                 DEBUG(0,("dcesrv_sock_accept: dcesrv_endpoint_connect failed: %s\n",
 374                         nt_errstr(status)));
 375                 stream_terminate_connection(srv_conn, nt_errstr(status));
 376                 return;
 377         }
 378
 379         dcesrv_conn->transport.private_data             = srv_conn;
 380         dcesrv_conn->transport.report_output_data       = dcesrv_sock_report_output_data;
 381         dcesrv_conn->transport.get_my_addr              = dcesrv_sock_get_my_addr;
 382         dcesrv_conn->transport.get_peer_addr            = dcesrv_sock_get_peer_addr;
 383
 384         TALLOC_FREE(srv_conn->event.fde);
 385
 386         dcesrv_conn->send_queue = tevent_queue_create(dcesrv_conn, "dcesrv send queue");
 387         if (!dcesrv_conn->send_queue) {
 388                 status = NT_STATUS_NO_MEMORY;
 389                 DEBUG(0,("dcesrv_sock_accept: tevent_queue_create(%s)\n",
 390                         nt_errstr(status)));
 391                 stream_terminate_connection(srv_conn, nt_errstr(status));
 392                 return;
 393         }
 394
 395         if (dcesrv_sock->endpoint->ep_description->transport == NCACN_NP) {
 396                 dcesrv_conn->auth_state.session_key = dcesrv_inherited_session_key;
 397                 ret = tstream_npa_existing_socket(dcesrv_conn,
 398                                                   socket_get_fd(srv_conn->socket),
 399                                                   FILE_TYPE_MESSAGE_MODE_PIPE,
 400                                                   &dcesrv_conn->stream);
 401         } else {
 402                 ret = tstream_bsd_existing_socket(dcesrv_conn,
 403                                                   socket_get_fd(srv_conn->socket),
 404                                                   &dcesrv_conn->stream);
 405         }
 406         if (ret == -1) {
 407                 status = map_nt_error_from_unix(errno);
 408                 DEBUG(0,("dcesrv_sock_accept: failed to setup tstream: %s\n",
 409                         nt_errstr(status)));
 410                 stream_terminate_connection(srv_conn, nt_errstr(status));
 411                 return;
 412         }
 413
 414         srv_conn->private_data = dcesrv_conn;
 415
 416         irpc_add_name(srv_conn->msg_ctx, "rpc_server");
 417
 418         subreq = dcerpc_read_ncacn_packet_send(dcesrv_conn,
 419                                                dcesrv_conn->event_ctx,
 420                                                dcesrv_conn->stream,
 421                                                lp_iconv_convenience(lp_ctx));
 422         if (!subreq) {
 423                 status = NT_STATUS_NO_MEMORY;
 424                 DEBUG(0,("dcesrv_sock_accept: dcerpc_read_fragment_buffer_send(%s)\n",
 425                         nt_errstr(status)));
 426                 stream_terminate_connection(srv_conn, nt_errstr(status));
 427                 return;
 428         }
 429         tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dcesrv_conn);
 430
 431         return;
 432 }
 433
 434 static void dcesrv_read_fragment_done(struct tevent_req *subreq)
 435 {
 436         struct dcesrv_connection *dce_conn = tevent_req_callback_data(subreq,
 437                                              struct dcesrv_connection);
 438         struct ncacn_packet *pkt;
 439         DATA_BLOB buffer;
 440         NTSTATUS status;
 441         struct loadparm_context *lp_ctx = dce_conn->dce_ctx->lp_ctx;
 442
 443         status = dcerpc_read_ncacn_packet_recv(subreq, dce_conn,
 444                                                &pkt, &buffer);
 445         TALLOC_FREE(subreq);
 446         if (!NT_STATUS_IS_OK(status)) {
 447                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 448                 return;
 449         }
 450
 451         status = dcesrv_process_ncacn_packet(dce_conn, pkt, buffer);
 452         if (!NT_STATUS_IS_OK(status)) {
 453                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 454                 return;
 455         }
 456
 457         subreq = dcerpc_read_ncacn_packet_send(dce_conn,
 458                                                dce_conn->event_ctx,
 459                                                dce_conn->stream,
 460                                                lp_iconv_convenience(lp_ctx));
 461         if (!subreq) {
 462                 status = NT_STATUS_NO_MEMORY;
 463                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 464                 return;
 465         }
 466         tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dce_conn);
 467 }
 468
 469 static void dcesrv_sock_recv(struct stream_connection *conn, uint16_t flags)
 470 {
 471         struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
 472                                              struct dcesrv_connection);
 473         dcesrv_terminate_connection(dce_conn, "dcesrv_sock_recv triggered");
 474 }
 475
 476 static void dcesrv_sock_send(struct stream_connection *conn, uint16_t flags)
 477 {
 478         struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
 479                                              struct dcesrv_connection);
 480         dcesrv_terminate_connection(dce_conn, "dcesrv_sock_send triggered");
 481 }
 482
 483
 484 static const struct stream_server_ops dcesrv_stream_ops = {
 485         .name                   = "rpc",
 486         .accept_connection      = dcesrv_sock_accept,
 487         .recv_handler           = dcesrv_sock_recv,
 488         .send_handler           = dcesrv_sock_send,
 489 };
 490
 491
 492
 493 static NTSTATUS dcesrv_add_ep_unix(struct dcesrv_context *dce_ctx,
 494                                    struct loadparm_context *lp_ctx,
 495                                    struct dcesrv_endpoint *e,
 496                             struct tevent_context *event_ctx, const struct model_ops *model_ops)
 497 {
 498         struct dcesrv_socket_context *dcesrv_sock;
 499         uint16_t port = 1;
 500         NTSTATUS status;
 501
 502         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 503         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 504
 505         /* remember the endpoint of this socket */
 506         dcesrv_sock->endpoint           = e;
 507         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 508
 509         status = stream_setup_socket(event_ctx, lp_ctx,
 510                                      model_ops, &dcesrv_stream_ops,
 511                                      "unix", e->ep_description->endpoint, &port,
 512                                      lp_socket_options(lp_ctx),
 513                                      dcesrv_sock);
 514         if (!NT_STATUS_IS_OK(status)) {
 515                 DEBUG(0,("service_setup_stream_socket(path=%s) failed - %s\n",
 516                          e->ep_description->endpoint, nt_errstr(status)));
 517         }
 518
 519         return status;
 520 }
 521
 522 static NTSTATUS dcesrv_add_ep_ncalrpc(struct dcesrv_context *dce_ctx,
 523                                       struct loadparm_context *lp_ctx,
 524                                       struct dcesrv_endpoint *e,
 525                                       struct tevent_context *event_ctx, const struct model_ops *model_ops)
 526 {
 527         struct dcesrv_socket_context *dcesrv_sock;
 528         uint16_t port = 1;
 529         char *full_path;
 530         NTSTATUS status;
 531
 532         if (!e->ep_description->endpoint) {
 533                 /* No identifier specified: use DEFAULT.
 534                  * DO NOT hardcode this value anywhere else. Rather, specify
 535                  * no endpoint and let the epmapper worry about it. */
 536                 e->ep_description->endpoint = talloc_strdup(dce_ctx, "DEFAULT");
 537         }
 538
 539         full_path = talloc_asprintf(dce_ctx, "%s/%s", lp_ncalrpc_dir(lp_ctx),
 540                                     e->ep_description->endpoint);
 541
 542         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 543         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 544
 545         /* remember the endpoint of this socket */
 546         dcesrv_sock->endpoint           = e;
 547         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 548
 549         status = stream_setup_socket(event_ctx, lp_ctx,
 550                                      model_ops, &dcesrv_stream_ops,
 551                                      "unix", full_path, &port,
 552                                      lp_socket_options(lp_ctx),
 553                                      dcesrv_sock);
 554         if (!NT_STATUS_IS_OK(status)) {
 555                 DEBUG(0,("service_setup_stream_socket(identifier=%s,path=%s) failed - %s\n",
 556                          e->ep_description->endpoint, full_path, nt_errstr(status)));
 557         }
 558         return status;
 559 }
 560
 561 static NTSTATUS dcesrv_add_ep_np(struct dcesrv_context *dce_ctx,
 562                                  struct loadparm_context *lp_ctx,
 563                                  struct dcesrv_endpoint *e,
 564                                  struct tevent_context *event_ctx, const struct model_ops *model_ops)
 565 {
 566         struct dcesrv_socket_context *dcesrv_sock;
 567         NTSTATUS status;
 568
 569         if (e->ep_description->endpoint == NULL) {
 570                 DEBUG(0, ("Endpoint mandatory for named pipes\n"));
 571                 return NT_STATUS_INVALID_PARAMETER;
 572         }
 573
 574         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 575         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 576
 577         /* remember the endpoint of this socket */
 578         dcesrv_sock->endpoint           = e;
 579         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 580
 581         status = stream_setup_named_pipe(event_ctx, lp_ctx,
 582                                          model_ops, &dcesrv_stream_ops,
 583                                          e->ep_description->endpoint, dcesrv_sock);
 584         if (!NT_STATUS_IS_OK(status)) {
 585                 DEBUG(0,("stream_setup_named_pipe(pipe=%s) failed - %s\n",
 586                          e->ep_description->endpoint, nt_errstr(status)));
 587                 return status;
 588         }
 589
 590         return NT_STATUS_OK;
 591 }
 592
 593 /*
 594   add a socket address to the list of events, one event per dcerpc endpoint
 595 */
 596 static NTSTATUS add_socket_rpc_tcp_iface(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
 597                                          struct tevent_context *event_ctx, const struct model_ops *model_ops,
 598                                          const char *address)
 599 {
 600         struct dcesrv_socket_context *dcesrv_sock;
 601         uint16_t port = 0;
 602         NTSTATUS status;
 603
 604         if (e->ep_description->endpoint) {
 605                 port = atoi(e->ep_description->endpoint);
 606         }
 607
 608         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 609         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 610
 611         /* remember the endpoint of this socket */
 612         dcesrv_sock->endpoint           = e;
 613         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 614
 615         status = stream_setup_socket(event_ctx, dce_ctx->lp_ctx,
 616                                      model_ops, &dcesrv_stream_ops,
 617                                      "ipv4", address, &port,
 618                                      lp_socket_options(dce_ctx->lp_ctx),
 619                                      dcesrv_sock);
 620         if (!NT_STATUS_IS_OK(status)) {
 621                 DEBUG(0,("service_setup_stream_socket(address=%s,port=%u) failed - %s\n",
 622                          address, port, nt_errstr(status)));
 623         }
 624
 625         if (e->ep_description->endpoint == NULL) {
 626                 e->ep_description->endpoint = talloc_asprintf(dce_ctx, "%d", port);
 627         }
 628
 629         return status;
 630 }
 631
 632 static NTSTATUS dcesrv_add_ep_tcp(struct dcesrv_context *dce_ctx,
 633                                   struct loadparm_context *lp_ctx,
 634                                   struct dcesrv_endpoint *e,
 635                                   struct tevent_context *event_ctx, const struct model_ops *model_ops)
 636 {
 637         NTSTATUS status;
 638
 639         /* Add TCP/IP sockets */
 640         if (lp_interfaces(lp_ctx) && lp_bind_interfaces_only(lp_ctx)) {
 641                 int num_interfaces;
 642                 int i;
 643                 struct interface *ifaces;
 644
 645                 load_interfaces(dce_ctx, lp_interfaces(lp_ctx), &ifaces);
 646
 647                 num_interfaces = iface_count(ifaces);
 648                 for(i = 0; i < num_interfaces; i++) {
 649                         const char *address = iface_n_ip(ifaces, i);
 650                         status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, address);
 651                         NT_STATUS_NOT_OK_RETURN(status);
 652                 }
 653         } else {
 654                 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops,
 655                                                   lp_socket_address(lp_ctx));
 656                 NT_STATUS_NOT_OK_RETURN(status);
 657         }
 658
 659         return NT_STATUS_OK;
 660 }
 661
 662 NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
 663                        struct loadparm_context *lp_ctx,
 664                        struct dcesrv_endpoint *e,
 665                        struct tevent_context *event_ctx,
 666                        const struct model_ops *model_ops)
 667 {
 668         switch (e->ep_description->transport) {
 669         case NCACN_UNIX_STREAM:
 670                 return dcesrv_add_ep_unix(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 671
 672         case NCALRPC:
 673                 return dcesrv_add_ep_ncalrpc(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 674
 675         case NCACN_IP_TCP:
 676                 return dcesrv_add_ep_tcp(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 677
 678         case NCACN_NP:
 679                 return dcesrv_add_ep_np(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 680
 681         default:
 682                 return NT_STATUS_NOT_SUPPORTED;
 683         }
 684 }
 685
 686 /*
 687   open the dcerpc server sockets
 688 */
 689 static void dcesrv_task_init(struct task_server *task)
 690 {
 691         NTSTATUS status;
 692         struct dcesrv_context *dce_ctx;
 693         struct dcesrv_endpoint *e;
 694
 695         dcerpc_server_init(task->lp_ctx);
 696
 697         task_server_set_title(task, "task[dcesrv]");
 698
 699         status = dcesrv_init_context(task->event_ctx,
 700                                      task->lp_ctx,
 701                                      lp_dcerpc_endpoint_servers(task->lp_ctx),
 702                                      &dce_ctx);
 703         if (!NT_STATUS_IS_OK(status)) goto failed;
 704
 705         /* Make sure the directory for NCALRPC exists */
 706         if (!directory_exist(lp_ncalrpc_dir(task->lp_ctx))) {
 707                 mkdir(lp_ncalrpc_dir(task->lp_ctx), 0755);
 708         }
 709
 710         for (e=dce_ctx->endpoint_list;e;e=e->next) {
 711                 status = dcesrv_add_ep(dce_ctx, task->lp_ctx, e, task->event_ctx, task->model_ops);
 712                 if (!NT_STATUS_IS_OK(status)) goto failed;
 713         }
 714
 715         return;
 716 failed:
 717         task_server_terminate(task, "Failed to startup dcerpc server task");
 718 }
 719
 720 NTSTATUS server_service_rpc_init(void)
 721 {
 722
 723         return register_server_service("rpc", dcesrv_task_init);
 724 }