source4/rpc_server/service_rpc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    smbd-specific dcerpc server code
   5
   6    Copyright (C) Andrew Tridgell 2003-2005
   7    Copyright (C) Stefan (metze) Metzmacher 2004-2005
   8    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2004,2007
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25 #include "librpc/gen_ndr/ndr_dcerpc.h"
  26 #include "auth/auth.h"
  27 #include "../lib/util/dlinklist.h"
  28 #include "rpc_server/dcerpc_server.h"
  29 #include "rpc_server/dcerpc_server_proto.h"
  30 #include "system/filesys.h"
  31 #include "lib/messaging/irpc.h"
  32 #include "system/network.h"
  33 #include "lib/socket/netif.h"
  34 #include "param/param.h"
  35 #include "../lib/tsocket/tsocket.h"
  36 #include "librpc/rpc/dcerpc_proto.h"
  37 #include "../lib/util/tevent_ntstatus.h"
  38 #include "libcli/raw/smb.h"
  39 #include "../libcli/named_pipe_auth/npa_tstream.h"
  40 #include "smbd/process_model.h"
  41
  42 struct dcesrv_socket_context {
  43         const struct dcesrv_endpoint *endpoint;
  44         struct dcesrv_context *dcesrv_ctx;
  45 };
  46
  47 static void dcesrv_terminate_connection(struct dcesrv_connection *dce_conn, const char *reason)
  48 {
  49         struct stream_connection *srv_conn;
  50         srv_conn = talloc_get_type(dce_conn->transport.private_data,
  51                                    struct stream_connection);
  52
  53         stream_terminate_connection(srv_conn, reason);
  54 }
  55
  56 static void dcesrv_sock_reply_done(struct tevent_req *subreq);
  57
  58 struct dcesrv_sock_reply_state {
  59         struct dcesrv_connection *dce_conn;
  60         struct dcesrv_call_state *call;
  61         struct iovec iov;
  62 };
  63
  64 static void dcesrv_sock_report_output_data(struct dcesrv_connection *dce_conn)
  65 {
  66         struct dcesrv_call_state *call;
  67
  68         call = dce_conn->call_list;
  69         if (!call || !call->replies) {
  70                 return;
  71         }
  72
  73         while (call->replies) {
  74                 struct data_blob_list_item *rep = call->replies;
  75                 struct dcesrv_sock_reply_state *substate;
  76                 struct tevent_req *subreq;
  77
  78                 substate = talloc(call, struct dcesrv_sock_reply_state);
  79                 if (!substate) {
  80                         dcesrv_terminate_connection(dce_conn, "no memory");
  81                         return;
  82                 }
  83
  84                 substate->dce_conn = dce_conn;
  85                 substate->call = NULL;
  86
  87                 DLIST_REMOVE(call->replies, rep);
  88
  89                 if (call->replies == NULL) {
  90                         substate->call = call;
  91                 }
  92
  93                 substate->iov.iov_base = rep->blob.data;
  94                 substate->iov.iov_len = rep->blob.length;
  95
  96                 subreq = tstream_writev_queue_send(substate,
  97                                                    dce_conn->event_ctx,
  98                                                    dce_conn->stream,
  99                                                    dce_conn->send_queue,
 100                                                    &substate->iov, 1);
 101                 if (!subreq) {
 102                         dcesrv_terminate_connection(dce_conn, "no memory");
 103                         return;
 104                 }
 105                 tevent_req_set_callback(subreq, dcesrv_sock_reply_done,
 106                                         substate);
 107         }
 108
 109         DLIST_REMOVE(call->conn->call_list, call);
 110         call->list = DCESRV_LIST_NONE;
 111 }
 112
 113 static void dcesrv_sock_reply_done(struct tevent_req *subreq)
 114 {
 115         struct dcesrv_sock_reply_state *substate = tevent_req_callback_data(subreq,
 116                                                 struct dcesrv_sock_reply_state);
 117         int ret;
 118         int sys_errno;
 119         NTSTATUS status;
 120         struct dcesrv_call_state *call = substate->call;
 121
 122         ret = tstream_writev_queue_recv(subreq, &sys_errno);
 123         TALLOC_FREE(subreq);
 124         if (ret == -1) {
 125                 status = map_nt_error_from_unix(sys_errno);
 126                 dcesrv_terminate_connection(substate->dce_conn, nt_errstr(status));
 127                 return;
 128         }
 129
 130         talloc_free(substate);
 131         if (call) {
 132                 talloc_free(call);
 133         }
 134 }
 135
 136 static struct socket_address *dcesrv_sock_get_my_addr(struct dcesrv_connection *dcesrv_conn, TALLOC_CTX *mem_ctx)
 137 {
 138         struct stream_connection *srv_conn;
 139         srv_conn = talloc_get_type(dcesrv_conn->transport.private_data,
 140                                    struct stream_connection);
 141
 142         return socket_get_my_addr(srv_conn->socket, mem_ctx);
 143 }
 144
 145 static struct socket_address *dcesrv_sock_get_peer_addr(struct dcesrv_connection *dcesrv_conn, TALLOC_CTX *mem_ctx)
 146 {
 147         struct stream_connection *srv_conn;
 148         srv_conn = talloc_get_type(dcesrv_conn->transport.private_data,
 149                                    struct stream_connection);
 150
 151         return socket_get_peer_addr(srv_conn->socket, mem_ctx);
 152 }
 153
 154 struct dcerpc_read_ncacn_packet_state {
 155         struct {
 156                 struct smb_iconv_convenience *smb_iconv_c;
 157         } caller;
 158         DATA_BLOB buffer;
 159         struct ncacn_packet *pkt;
 160 };
 161
 162 static int dcerpc_read_ncacn_packet_next_vector(struct tstream_context *stream,
 163                                                 void *private_data,
 164                                                 TALLOC_CTX *mem_ctx,
 165                                                 struct iovec **_vector,
 166                                                 size_t *_count);
 167 static void dcerpc_read_ncacn_packet_done(struct tevent_req *subreq);
 168
 169 static struct tevent_req *dcerpc_read_ncacn_packet_send(TALLOC_CTX *mem_ctx,
 170                                                  struct tevent_context *ev,
 171                                                  struct tstream_context *stream,
 172                                                  struct smb_iconv_convenience *ic)
 173 {
 174         struct tevent_req *req;
 175         struct dcerpc_read_ncacn_packet_state *state;
 176         struct tevent_req *subreq;
 177
 178         req = tevent_req_create(mem_ctx, &state,
 179                                 struct dcerpc_read_ncacn_packet_state);
 180         if (req == NULL) {
 181                 return NULL;
 182         }
 183
 184         state->caller.smb_iconv_c = ic;
 185         state->buffer = data_blob_const(NULL, 0);
 186         state->pkt = talloc(state, struct ncacn_packet);
 187         if (tevent_req_nomem(state->pkt, req)) {
 188                 goto post;
 189         }
 190
 191         subreq = tstream_readv_pdu_send(state, ev,
 192                                         stream,
 193                                         dcerpc_read_ncacn_packet_next_vector,
 194                                         state);
 195         if (tevent_req_nomem(subreq, req)) {
 196                 goto post;
 197         }
 198         tevent_req_set_callback(subreq, dcerpc_read_ncacn_packet_done, req);
 199
 200         return req;
 201  post:
 202         tevent_req_post(req, ev);
 203         return req;
 204 }
 205
 206 static int dcerpc_read_ncacn_packet_next_vector(struct tstream_context *stream,
 207                                                 void *private_data,
 208                                                 TALLOC_CTX *mem_ctx,
 209                                                 struct iovec **_vector,
 210                                                 size_t *_count)
 211 {
 212         struct dcerpc_read_ncacn_packet_state *state =
 213                 talloc_get_type_abort(private_data,
 214                 struct dcerpc_read_ncacn_packet_state);
 215         struct iovec *vector;
 216         off_t ofs = 0;
 217
 218         if (state->buffer.length == 0) {
 219                 /* first get enough to read the fragment length */
 220                 ofs = 0;
 221                 state->buffer.length = DCERPC_FRAG_LEN_OFFSET + 2;
 222                 state->buffer.data = talloc_array(state, uint8_t,
 223                                                   state->buffer.length);
 224                 if (!state->buffer.data) {
 225                         return -1;
 226                 }
 227         } else if (state->buffer.length == (DCERPC_FRAG_LEN_OFFSET + 2)) {
 228                 /* now read the fragment length and allocate the full buffer */
 229                 size_t frag_len = dcerpc_get_frag_length(&state->buffer);
 230
 231                 ofs = state->buffer.length;
 232
 233                 state->buffer.data = talloc_realloc(state,
 234                                                     state->buffer.data,
 235                                                     uint8_t, frag_len);
 236                 if (!state->buffer.data) {
 237                         return -1;
 238                 }
 239                 state->buffer.length = frag_len;
 240         } else {
 241                 /* if we reach this we have a full fragment */
 242                 *_vector = NULL;
 243                 *_count = 0;
 244                 return 0;
 245         }
 246
 247         /* now create the vector that we want to be filled */
 248         vector = talloc_array(mem_ctx, struct iovec, 1);
 249         if (!vector) {
 250                 return -1;
 251         }
 252
 253         vector[0].iov_base = state->buffer.data + ofs;
 254         vector[0].iov_len = state->buffer.length - ofs;
 255
 256         *_vector = vector;
 257         *_count = 1;
 258         return 0;
 259 }
 260
 261 static void dcerpc_read_ncacn_packet_done(struct tevent_req *subreq)
 262 {
 263         struct tevent_req *req = tevent_req_callback_data(subreq,
 264                                  struct tevent_req);
 265         struct dcerpc_read_ncacn_packet_state *state = tevent_req_data(req,
 266                                         struct dcerpc_read_ncacn_packet_state);
 267         int ret;
 268         int sys_errno;
 269         struct ndr_pull *ndr;
 270         enum ndr_err_code ndr_err;
 271         NTSTATUS status;
 272
 273         ret = tstream_readv_pdu_recv(subreq, &sys_errno);
 274         TALLOC_FREE(subreq);
 275         if (ret == -1) {
 276                 status = map_nt_error_from_unix(sys_errno);
 277                 tevent_req_nterror(req, status);
 278                 return;
 279         }
 280
 281         ndr = ndr_pull_init_blob(&state->buffer,
 282                                  state->pkt,
 283                                  state->caller.smb_iconv_c);
 284         if (tevent_req_nomem(ndr, req)) {
 285                 return;
 286         }
 287
 288         if (!(CVAL(ndr->data, DCERPC_DREP_OFFSET) & DCERPC_DREP_LE)) {
 289                 ndr->flags |= LIBNDR_FLAG_BIGENDIAN;
 290         }
 291
 292         if (CVAL(ndr->data, DCERPC_PFC_OFFSET) & DCERPC_PFC_FLAG_OBJECT_UUID) {
 293                 ndr->flags |= LIBNDR_FLAG_OBJECT_PRESENT;
 294         }
 295
 296         ndr_err = ndr_pull_ncacn_packet(ndr, NDR_SCALARS|NDR_BUFFERS, state->pkt);
 297         TALLOC_FREE(ndr);
 298         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 299                 status = ndr_map_error2ntstatus(ndr_err);
 300                 tevent_req_nterror(req, status);
 301                 return;
 302         }
 303
 304         tevent_req_done(req);
 305 }
 306
 307 static NTSTATUS dcerpc_read_ncacn_packet_recv(struct tevent_req *req,
 308                                        TALLOC_CTX *mem_ctx,
 309                                        struct ncacn_packet **pkt,
 310                                        DATA_BLOB *buffer)
 311 {
 312         struct dcerpc_read_ncacn_packet_state *state = tevent_req_data(req,
 313                                         struct dcerpc_read_ncacn_packet_state);
 314         NTSTATUS status;
 315
 316         if (tevent_req_is_nterror(req, &status)) {
 317                 tevent_req_received(req);
 318                 return status;
 319         }
 320
 321         *pkt = talloc_move(mem_ctx, &state->pkt);
 322         if (buffer) {
 323                 buffer->data = talloc_move(mem_ctx, &state->buffer.data);
 324                 buffer->length = state->buffer.length;
 325         }
 326
 327         tevent_req_received(req);
 328         return NT_STATUS_OK;
 329 }
 330
 331 static void dcesrv_read_fragment_done(struct tevent_req *subreq);
 332
 333 static void dcesrv_sock_accept(struct stream_connection *srv_conn)
 334 {
 335         NTSTATUS status;
 336         struct dcesrv_socket_context *dcesrv_sock =
 337                 talloc_get_type(srv_conn->private_data, struct dcesrv_socket_context);
 338         struct dcesrv_connection *dcesrv_conn = NULL;
 339         int ret;
 340         struct tevent_req *subreq;
 341         struct loadparm_context *lp_ctx = dcesrv_sock->dcesrv_ctx->lp_ctx;
 342
 343         if (!srv_conn->session_info) {
 344                 status = auth_anonymous_session_info(srv_conn,
 345                                                      srv_conn->event.ctx,
 346                                                      lp_ctx,
 347                                                      &srv_conn->session_info);
 348                 if (!NT_STATUS_IS_OK(status)) {
 349                         DEBUG(0,("dcesrv_sock_accept: auth_anonymous_session_info failed: %s\n",
 350                                 nt_errstr(status)));
 351                         stream_terminate_connection(srv_conn, nt_errstr(status));
 352                         return;
 353                 }
 354         }
 355
 356         status = dcesrv_endpoint_connect(dcesrv_sock->dcesrv_ctx,
 357                                          srv_conn,
 358                                          dcesrv_sock->endpoint,
 359                                          srv_conn->session_info,
 360                                          srv_conn->event.ctx,
 361                                          srv_conn->msg_ctx,
 362                                          srv_conn->server_id,
 363                                          DCESRV_CALL_STATE_FLAG_MAY_ASYNC,
 364                                          &dcesrv_conn);
 365         if (!NT_STATUS_IS_OK(status)) {
 366                 DEBUG(0,("dcesrv_sock_accept: dcesrv_endpoint_connect failed: %s\n",
 367                         nt_errstr(status)));
 368                 stream_terminate_connection(srv_conn, nt_errstr(status));
 369                 return;
 370         }
 371
 372         dcesrv_conn->transport.private_data             = srv_conn;
 373         dcesrv_conn->transport.report_output_data       = dcesrv_sock_report_output_data;
 374         dcesrv_conn->transport.get_my_addr              = dcesrv_sock_get_my_addr;
 375         dcesrv_conn->transport.get_peer_addr            = dcesrv_sock_get_peer_addr;
 376
 377         TALLOC_FREE(srv_conn->event.fde);
 378
 379         dcesrv_conn->send_queue = tevent_queue_create(dcesrv_conn, "dcesrv send queue");
 380         if (!dcesrv_conn->send_queue) {
 381                 status = NT_STATUS_NO_MEMORY;
 382                 DEBUG(0,("dcesrv_sock_accept: tevent_queue_create(%s)\n",
 383                         nt_errstr(status)));
 384                 stream_terminate_connection(srv_conn, nt_errstr(status));
 385                 return;
 386         }
 387
 388         if (dcesrv_sock->endpoint->ep_description->transport == NCACN_NP) {
 389                 dcesrv_conn->auth_state.session_key = dcesrv_inherited_session_key;
 390                 ret = tstream_npa_existing_socket(dcesrv_conn,
 391                                                   socket_get_fd(srv_conn->socket),
 392                                                   FILE_TYPE_MESSAGE_MODE_PIPE,
 393                                                   &dcesrv_conn->stream);
 394         } else {
 395                 ret = tstream_bsd_existing_socket(dcesrv_conn,
 396                                                   socket_get_fd(srv_conn->socket),
 397                                                   &dcesrv_conn->stream);
 398         }
 399         if (ret == -1) {
 400                 status = map_nt_error_from_unix(errno);
 401                 DEBUG(0,("dcesrv_sock_accept: failed to setup tstream: %s\n",
 402                         nt_errstr(status)));
 403                 stream_terminate_connection(srv_conn, nt_errstr(status));
 404                 return;
 405         }
 406
 407         srv_conn->private_data = dcesrv_conn;
 408
 409         irpc_add_name(srv_conn->msg_ctx, "rpc_server");
 410
 411         subreq = dcerpc_read_ncacn_packet_send(dcesrv_conn,
 412                                                dcesrv_conn->event_ctx,
 413                                                dcesrv_conn->stream,
 414                                                lp_iconv_convenience(lp_ctx));
 415         if (!subreq) {
 416                 status = NT_STATUS_NO_MEMORY;
 417                 DEBUG(0,("dcesrv_sock_accept: dcerpc_read_fragment_buffer_send(%s)\n",
 418                         nt_errstr(status)));
 419                 stream_terminate_connection(srv_conn, nt_errstr(status));
 420                 return;
 421         }
 422         tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dcesrv_conn);
 423
 424         return;
 425 }
 426
 427 static void dcesrv_read_fragment_done(struct tevent_req *subreq)
 428 {
 429         struct dcesrv_connection *dce_conn = tevent_req_callback_data(subreq,
 430                                              struct dcesrv_connection);
 431         struct ncacn_packet *pkt;
 432         DATA_BLOB buffer;
 433         NTSTATUS status;
 434         struct loadparm_context *lp_ctx = dce_conn->dce_ctx->lp_ctx;
 435
 436         status = dcerpc_read_ncacn_packet_recv(subreq, dce_conn,
 437                                                &pkt, &buffer);
 438         TALLOC_FREE(subreq);
 439         if (!NT_STATUS_IS_OK(status)) {
 440                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 441                 return;
 442         }
 443
 444         status = dcesrv_process_ncacn_packet(dce_conn, pkt, buffer);
 445         if (!NT_STATUS_IS_OK(status)) {
 446                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 447                 return;
 448         }
 449
 450         subreq = dcerpc_read_ncacn_packet_send(dce_conn,
 451                                                dce_conn->event_ctx,
 452                                                dce_conn->stream,
 453                                                lp_iconv_convenience(lp_ctx));
 454         if (!subreq) {
 455                 status = NT_STATUS_NO_MEMORY;
 456                 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
 457                 return;
 458         }
 459         tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dce_conn);
 460 }
 461
 462 static void dcesrv_sock_recv(struct stream_connection *conn, uint16_t flags)
 463 {
 464         struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
 465                                              struct dcesrv_connection);
 466         dcesrv_terminate_connection(dce_conn, "dcesrv_sock_recv triggered");
 467 }
 468
 469 static void dcesrv_sock_send(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_send triggered");
 474 }
 475
 476
 477 static const struct stream_server_ops dcesrv_stream_ops = {
 478         .name                   = "rpc",
 479         .accept_connection      = dcesrv_sock_accept,
 480         .recv_handler           = dcesrv_sock_recv,
 481         .send_handler           = dcesrv_sock_send,
 482 };
 483
 484
 485
 486 static NTSTATUS dcesrv_add_ep_unix(struct dcesrv_context *dce_ctx,
 487                                    struct loadparm_context *lp_ctx,
 488                                    struct dcesrv_endpoint *e,
 489                             struct tevent_context *event_ctx, const struct model_ops *model_ops)
 490 {
 491         struct dcesrv_socket_context *dcesrv_sock;
 492         uint16_t port = 1;
 493         NTSTATUS status;
 494
 495         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 496         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 497
 498         /* remember the endpoint of this socket */
 499         dcesrv_sock->endpoint           = e;
 500         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 501
 502         status = stream_setup_socket(event_ctx, lp_ctx,
 503                                      model_ops, &dcesrv_stream_ops,
 504                                      "unix", e->ep_description->endpoint, &port,
 505                                      lp_socket_options(lp_ctx),
 506                                      dcesrv_sock);
 507         if (!NT_STATUS_IS_OK(status)) {
 508                 DEBUG(0,("service_setup_stream_socket(path=%s) failed - %s\n",
 509                          e->ep_description->endpoint, nt_errstr(status)));
 510         }
 511
 512         return status;
 513 }
 514
 515 static NTSTATUS dcesrv_add_ep_ncalrpc(struct dcesrv_context *dce_ctx,
 516                                       struct loadparm_context *lp_ctx,
 517                                       struct dcesrv_endpoint *e,
 518                                       struct tevent_context *event_ctx, const struct model_ops *model_ops)
 519 {
 520         struct dcesrv_socket_context *dcesrv_sock;
 521         uint16_t port = 1;
 522         char *full_path;
 523         NTSTATUS status;
 524
 525         if (!e->ep_description->endpoint) {
 526                 /* No identifier specified: use DEFAULT.
 527                  * DO NOT hardcode this value anywhere else. Rather, specify
 528                  * no endpoint and let the epmapper worry about it. */
 529                 e->ep_description->endpoint = talloc_strdup(dce_ctx, "DEFAULT");
 530         }
 531
 532         full_path = talloc_asprintf(dce_ctx, "%s/%s", lp_ncalrpc_dir(lp_ctx),
 533                                     e->ep_description->endpoint);
 534
 535         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 536         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 537
 538         /* remember the endpoint of this socket */
 539         dcesrv_sock->endpoint           = e;
 540         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 541
 542         status = stream_setup_socket(event_ctx, lp_ctx,
 543                                      model_ops, &dcesrv_stream_ops,
 544                                      "unix", full_path, &port,
 545                                      lp_socket_options(lp_ctx),
 546                                      dcesrv_sock);
 547         if (!NT_STATUS_IS_OK(status)) {
 548                 DEBUG(0,("service_setup_stream_socket(identifier=%s,path=%s) failed - %s\n",
 549                          e->ep_description->endpoint, full_path, nt_errstr(status)));
 550         }
 551         return status;
 552 }
 553
 554 static NTSTATUS dcesrv_add_ep_np(struct dcesrv_context *dce_ctx,
 555                                  struct loadparm_context *lp_ctx,
 556                                  struct dcesrv_endpoint *e,
 557                                  struct tevent_context *event_ctx, const struct model_ops *model_ops)
 558 {
 559         struct dcesrv_socket_context *dcesrv_sock;
 560         NTSTATUS status;
 561
 562         if (e->ep_description->endpoint == NULL) {
 563                 DEBUG(0, ("Endpoint mandatory for named pipes\n"));
 564                 return NT_STATUS_INVALID_PARAMETER;
 565         }
 566
 567         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 568         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 569
 570         /* remember the endpoint of this socket */
 571         dcesrv_sock->endpoint           = e;
 572         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 573
 574         status = stream_setup_named_pipe(event_ctx, lp_ctx,
 575                                          model_ops, &dcesrv_stream_ops,
 576                                          e->ep_description->endpoint, dcesrv_sock);
 577         if (!NT_STATUS_IS_OK(status)) {
 578                 DEBUG(0,("stream_setup_named_pipe(pipe=%s) failed - %s\n",
 579                          e->ep_description->endpoint, nt_errstr(status)));
 580                 return status;
 581         }
 582
 583         return NT_STATUS_OK;
 584 }
 585
 586 /*
 587   add a socket address to the list of events, one event per dcerpc endpoint
 588 */
 589 static NTSTATUS add_socket_rpc_tcp_iface(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
 590                                          struct tevent_context *event_ctx, const struct model_ops *model_ops,
 591                                          const char *address)
 592 {
 593         struct dcesrv_socket_context *dcesrv_sock;
 594         uint16_t port = 0;
 595         NTSTATUS status;
 596
 597         if (e->ep_description->endpoint) {
 598                 port = atoi(e->ep_description->endpoint);
 599         }
 600
 601         dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
 602         NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
 603
 604         /* remember the endpoint of this socket */
 605         dcesrv_sock->endpoint           = e;
 606         dcesrv_sock->dcesrv_ctx         = talloc_reference(dcesrv_sock, dce_ctx);
 607
 608         status = stream_setup_socket(event_ctx, dce_ctx->lp_ctx,
 609                                      model_ops, &dcesrv_stream_ops,
 610                                      "ipv4", address, &port,
 611                                      lp_socket_options(dce_ctx->lp_ctx),
 612                                      dcesrv_sock);
 613         if (!NT_STATUS_IS_OK(status)) {
 614                 DEBUG(0,("service_setup_stream_socket(address=%s,port=%u) failed - %s\n",
 615                          address, port, nt_errstr(status)));
 616         }
 617
 618         if (e->ep_description->endpoint == NULL) {
 619                 e->ep_description->endpoint = talloc_asprintf(dce_ctx, "%d", port);
 620         }
 621
 622         return status;
 623 }
 624
 625 static NTSTATUS dcesrv_add_ep_tcp(struct dcesrv_context *dce_ctx,
 626                                   struct loadparm_context *lp_ctx,
 627                                   struct dcesrv_endpoint *e,
 628                                   struct tevent_context *event_ctx, const struct model_ops *model_ops)
 629 {
 630         NTSTATUS status;
 631
 632         /* Add TCP/IP sockets */
 633         if (lp_interfaces(lp_ctx) && lp_bind_interfaces_only(lp_ctx)) {
 634                 int num_interfaces;
 635                 int i;
 636                 struct interface *ifaces;
 637
 638                 load_interfaces(dce_ctx, lp_interfaces(lp_ctx), &ifaces);
 639
 640                 num_interfaces = iface_count(ifaces);
 641                 for(i = 0; i < num_interfaces; i++) {
 642                         const char *address = iface_n_ip(ifaces, i);
 643                         status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, address);
 644                         NT_STATUS_NOT_OK_RETURN(status);
 645                 }
 646         } else {
 647                 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops,
 648                                                   lp_socket_address(lp_ctx));
 649                 NT_STATUS_NOT_OK_RETURN(status);
 650         }
 651
 652         return NT_STATUS_OK;
 653 }
 654
 655 NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
 656                        struct loadparm_context *lp_ctx,
 657                        struct dcesrv_endpoint *e,
 658                        struct tevent_context *event_ctx,
 659                        const struct model_ops *model_ops)
 660 {
 661         switch (e->ep_description->transport) {
 662         case NCACN_UNIX_STREAM:
 663                 return dcesrv_add_ep_unix(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 664
 665         case NCALRPC:
 666                 return dcesrv_add_ep_ncalrpc(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 667
 668         case NCACN_IP_TCP:
 669                 return dcesrv_add_ep_tcp(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 670
 671         case NCACN_NP:
 672                 return dcesrv_add_ep_np(dce_ctx, lp_ctx, e, event_ctx, model_ops);
 673
 674         default:
 675                 return NT_STATUS_NOT_SUPPORTED;
 676         }
 677 }
 678
 679 /*
 680   open the dcerpc server sockets
 681 */
 682 static void dcesrv_task_init(struct task_server *task)
 683 {
 684         NTSTATUS status;
 685         struct dcesrv_context *dce_ctx;
 686         struct dcesrv_endpoint *e;
 687         const struct model_ops *model_ops;
 688
 689         dcerpc_server_init(task->lp_ctx);
 690
 691         task_server_set_title(task, "task[dcesrv]");
 692
 693         /* run the rpc server as a single process to allow for shard
 694          * handles, and sharing of ldb contexts */
 695         model_ops = process_model_startup(task->event_ctx, "single");
 696         if (!model_ops) goto failed;
 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, 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", true);
 717 }
 718
 719 NTSTATUS server_service_rpc_init(void)
 720 {
 721
 722         return register_server_service("rpc", dcesrv_task_init);
 723 }