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