source3/rpc_server/srv_pipe.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *  Almost completely rewritten by (C) Jeremy Allison 2005.
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 /*  this module apparently provides an implementation of DCE/RPC over a
  21  *  named pipe (IPC$ connection using SMBtrans).  details of DCE/RPC
  22  *  documentation are available (in on-line form) from the X-Open group.
  23  *
  24  *  this module should provide a level of abstraction between SMB
  25  *  and DCE/RPC, while minimising the amount of mallocs, unnecessary
  26  *  data copies, and network traffic.
  27  *
  28  */
  29
  30 #include "includes.h"
  31
  32 extern struct pipe_id_info pipe_names[];
  33 extern struct current_user current_user;
  34
  35 #undef DBGC_CLASS
  36 #define DBGC_CLASS DBGC_RPC_SRV
  37
  38 static void free_pipe_ntlmssp_auth_data(struct pipe_auth_data *auth)
  39 {
  40         AUTH_NTLMSSP_STATE *a = auth->a_u.auth_ntlmssp_state;
  41
  42         if (a) {
  43                 auth_ntlmssp_end(&a);
  44         }
  45         auth->a_u.auth_ntlmssp_state = NULL;
  46 }
  47
  48 static DATA_BLOB generic_session_key(void)
  49 {
  50         return data_blob("SystemLibraryDTC", 16);
  51 }
  52
  53 /*******************************************************************
  54  Generate the next PDU to be returned from the data in p->rdata.
  55  Handle NTLMSSP.
  56  ********************************************************************/
  57
  58 static bool create_next_pdu_ntlmssp(pipes_struct *p)
  59 {
  60         RPC_HDR_RESP hdr_resp;
  61         uint32 ss_padding_len = 0;
  62         uint32 data_space_available;
  63         uint32 data_len_left;
  64         uint32 data_len;
  65         prs_struct outgoing_pdu;
  66         NTSTATUS status;
  67         DATA_BLOB auth_blob;
  68         RPC_HDR_AUTH auth_info;
  69         uint8 auth_type, auth_level;
  70         AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
  71
  72         /*
  73          * If we're in the fault state, keep returning fault PDU's until
  74          * the pipe gets closed. JRA.
  75          */
  76
  77         if(p->fault_state) {
  78                 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
  79                 return True;
  80         }
  81
  82         memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
  83
  84         /* Change the incoming request header to a response. */
  85         p->hdr.pkt_type = RPC_RESPONSE;
  86
  87         /* Set up rpc header flags. */
  88         if (p->out_data.data_sent_length == 0) {
  89                 p->hdr.flags = RPC_FLG_FIRST;
  90         } else {
  91                 p->hdr.flags = 0;
  92         }
  93
  94         /*
  95          * Work out how much we can fit in a single PDU.
  96          */
  97
  98         data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
  99
 100         /*
 101          * Ensure there really is data left to send.
 102          */
 103
 104         if(!data_len_left) {
 105                 DEBUG(0,("create_next_pdu_ntlmssp: no data left to send !\n"));
 106                 return False;
 107         }
 108
 109         data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
 110                                         RPC_HDR_AUTH_LEN - NTLMSSP_SIG_SIZE;
 111
 112         /*
 113          * The amount we send is the minimum of the available
 114          * space and the amount left to send.
 115          */
 116
 117         data_len = MIN(data_len_left, data_space_available);
 118
 119         /*
 120          * Set up the alloc hint. This should be the data left to
 121          * send.
 122          */
 123
 124         hdr_resp.alloc_hint = data_len_left;
 125
 126         /*
 127          * Work out if this PDU will be the last.
 128          */
 129
 130         if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
 131                 p->hdr.flags |= RPC_FLG_LAST;
 132                 if (data_len_left % 8) {
 133                         ss_padding_len = 8 - (data_len_left % 8);
 134                         DEBUG(10,("create_next_pdu_ntlmssp: adding sign/seal padding of %u\n",
 135                                 ss_padding_len ));
 136                 }
 137         }
 138
 139         /*
 140          * Set up the header lengths.
 141          */
 142
 143         p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN +
 144                         data_len + ss_padding_len +
 145                         RPC_HDR_AUTH_LEN + NTLMSSP_SIG_SIZE;
 146         p->hdr.auth_len = NTLMSSP_SIG_SIZE;
 147
 148
 149         /*
 150          * Init the parse struct to point at the outgoing
 151          * data.
 152          */
 153
 154         prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
 155         prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
 156
 157         /* Store the header in the data stream. */
 158         if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
 159                 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR.\n"));
 160                 prs_mem_free(&outgoing_pdu);
 161                 return False;
 162         }
 163
 164         if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
 165                 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_RESP.\n"));
 166                 prs_mem_free(&outgoing_pdu);
 167                 return False;
 168         }
 169
 170         /* Copy the data into the PDU. */
 171
 172         if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
 173                 DEBUG(0,("create_next_pdu_ntlmssp: failed to copy %u bytes of data.\n", (unsigned int)data_len));
 174                 prs_mem_free(&outgoing_pdu);
 175                 return False;
 176         }
 177
 178         /* Copy the sign/seal padding data. */
 179         if (ss_padding_len) {
 180                 char pad[8];
 181
 182                 memset(pad, '\0', 8);
 183                 if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
 184                         DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes of pad data.\n",
 185                                         (unsigned int)ss_padding_len));
 186                         prs_mem_free(&outgoing_pdu);
 187                         return False;
 188                 }
 189         }
 190
 191
 192         /* Now write out the auth header and null blob. */
 193         if (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) {
 194                 auth_type = RPC_NTLMSSP_AUTH_TYPE;
 195         } else {
 196                 auth_type = RPC_SPNEGO_AUTH_TYPE;
 197         }
 198         if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
 199                 auth_level = RPC_AUTH_LEVEL_PRIVACY;
 200         } else {
 201                 auth_level = RPC_AUTH_LEVEL_INTEGRITY;
 202         }
 203
 204         init_rpc_hdr_auth(&auth_info, auth_type, auth_level, ss_padding_len, 1 /* context id. */);
 205         if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
 206                 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_AUTH.\n"));
 207                 prs_mem_free(&outgoing_pdu);
 208                 return False;
 209         }
 210
 211         /* Generate the sign blob. */
 212
 213         switch (p->auth.auth_level) {
 214                 case PIPE_AUTH_LEVEL_PRIVACY:
 215                         /* Data portion is encrypted. */
 216                         status = ntlmssp_seal_packet(a->ntlmssp_state,
 217                                                         (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
 218                                                         data_len + ss_padding_len,
 219                                                         (unsigned char *)prs_data_p(&outgoing_pdu),
 220                                                         (size_t)prs_offset(&outgoing_pdu),
 221                                                         &auth_blob);
 222                         if (!NT_STATUS_IS_OK(status)) {
 223                                 data_blob_free(&auth_blob);
 224                                 prs_mem_free(&outgoing_pdu);
 225                                 return False;
 226                         }
 227                         break;
 228                 case PIPE_AUTH_LEVEL_INTEGRITY:
 229                         /* Data is signed. */
 230                         status = ntlmssp_sign_packet(a->ntlmssp_state,
 231                                                         (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
 232                                                         data_len + ss_padding_len,
 233                                                         (unsigned char *)prs_data_p(&outgoing_pdu),
 234                                                         (size_t)prs_offset(&outgoing_pdu),
 235                                                         &auth_blob);
 236                         if (!NT_STATUS_IS_OK(status)) {
 237                                 data_blob_free(&auth_blob);
 238                                 prs_mem_free(&outgoing_pdu);
 239                                 return False;
 240                         }
 241                         break;
 242                 default:
 243                         prs_mem_free(&outgoing_pdu);
 244                         return False;
 245         }
 246
 247         /* Append the auth blob. */
 248         if (!prs_copy_data_in(&outgoing_pdu, (char *)auth_blob.data, NTLMSSP_SIG_SIZE)) {
 249                 DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes auth blob.\n",
 250                                 (unsigned int)NTLMSSP_SIG_SIZE));
 251                 data_blob_free(&auth_blob);
 252                 prs_mem_free(&outgoing_pdu);
 253                 return False;
 254         }
 255
 256         data_blob_free(&auth_blob);
 257
 258         /*
 259          * Setup the counts for this PDU.
 260          */
 261
 262         p->out_data.data_sent_length += data_len;
 263         p->out_data.current_pdu_len = p->hdr.frag_len;
 264         p->out_data.current_pdu_sent = 0;
 265
 266         prs_mem_free(&outgoing_pdu);
 267         return True;
 268 }
 269
 270 /*******************************************************************
 271  Generate the next PDU to be returned from the data in p->rdata.
 272  Return an schannel authenticated fragment.
 273  ********************************************************************/
 274
 275 static bool create_next_pdu_schannel(pipes_struct *p)
 276 {
 277         RPC_HDR_RESP hdr_resp;
 278         uint32 ss_padding_len = 0;
 279         uint32 data_len;
 280         uint32 data_space_available;
 281         uint32 data_len_left;
 282         prs_struct outgoing_pdu;
 283         uint32 data_pos;
 284
 285         /*
 286          * If we're in the fault state, keep returning fault PDU's until
 287          * the pipe gets closed. JRA.
 288          */
 289
 290         if(p->fault_state) {
 291                 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
 292                 return True;
 293         }
 294
 295         memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
 296
 297         /* Change the incoming request header to a response. */
 298         p->hdr.pkt_type = RPC_RESPONSE;
 299
 300         /* Set up rpc header flags. */
 301         if (p->out_data.data_sent_length == 0) {
 302                 p->hdr.flags = RPC_FLG_FIRST;
 303         } else {
 304                 p->hdr.flags = 0;
 305         }
 306
 307         /*
 308          * Work out how much we can fit in a single PDU.
 309          */
 310
 311         data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
 312
 313         /*
 314          * Ensure there really is data left to send.
 315          */
 316
 317         if(!data_len_left) {
 318                 DEBUG(0,("create_next_pdu_schannel: no data left to send !\n"));
 319                 return False;
 320         }
 321
 322         data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
 323                                         RPC_HDR_AUTH_LEN - RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
 324
 325         /*
 326          * The amount we send is the minimum of the available
 327          * space and the amount left to send.
 328          */
 329
 330         data_len = MIN(data_len_left, data_space_available);
 331
 332         /*
 333          * Set up the alloc hint. This should be the data left to
 334          * send.
 335          */
 336
 337         hdr_resp.alloc_hint = data_len_left;
 338
 339         /*
 340          * Work out if this PDU will be the last.
 341          */
 342
 343         if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
 344                 p->hdr.flags |= RPC_FLG_LAST;
 345                 if (data_len_left % 8) {
 346                         ss_padding_len = 8 - (data_len_left % 8);
 347                         DEBUG(10,("create_next_pdu_schannel: adding sign/seal padding of %u\n",
 348                                 ss_padding_len ));
 349                 }
 350         }
 351
 352         p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len + ss_padding_len +
 353                                 RPC_HDR_AUTH_LEN + RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
 354         p->hdr.auth_len = RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
 355
 356         /*
 357          * Init the parse struct to point at the outgoing
 358          * data.
 359          */
 360
 361         prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
 362         prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
 363
 364         /* Store the header in the data stream. */
 365         if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
 366                 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR.\n"));
 367                 prs_mem_free(&outgoing_pdu);
 368                 return False;
 369         }
 370
 371         if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
 372                 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_RESP.\n"));
 373                 prs_mem_free(&outgoing_pdu);
 374                 return False;
 375         }
 376
 377         /* Store the current offset. */
 378         data_pos = prs_offset(&outgoing_pdu);
 379
 380         /* Copy the data into the PDU. */
 381
 382         if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
 383                 DEBUG(0,("create_next_pdu_schannel: failed to copy %u bytes of data.\n", (unsigned int)data_len));
 384                 prs_mem_free(&outgoing_pdu);
 385                 return False;
 386         }
 387
 388         /* Copy the sign/seal padding data. */
 389         if (ss_padding_len) {
 390                 char pad[8];
 391                 memset(pad, '\0', 8);
 392                 if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
 393                         DEBUG(0,("create_next_pdu_schannel: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
 394                         prs_mem_free(&outgoing_pdu);
 395                         return False;
 396                 }
 397         }
 398
 399         {
 400                 /*
 401                  * Schannel processing.
 402                  */
 403                 char *data;
 404                 RPC_HDR_AUTH auth_info;
 405                 RPC_AUTH_SCHANNEL_CHK verf;
 406
 407                 data = prs_data_p(&outgoing_pdu) + data_pos;
 408                 /* Check it's the type of reply we were expecting to decode */
 409
 410                 init_rpc_hdr_auth(&auth_info,
 411                                 RPC_SCHANNEL_AUTH_TYPE,
 412                                 p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY ?
 413                                         RPC_AUTH_LEVEL_PRIVACY : RPC_AUTH_LEVEL_INTEGRITY,
 414                                 ss_padding_len, 1);
 415
 416                 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
 417                         DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_AUTH.\n"));
 418                         prs_mem_free(&outgoing_pdu);
 419                         return False;
 420                 }
 421
 422                 schannel_encode(p->auth.a_u.schannel_auth,
 423                               p->auth.auth_level,
 424                               SENDER_IS_ACCEPTOR,
 425                               &verf, data, data_len + ss_padding_len);
 426
 427                 if (!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
 428                                 &verf, &outgoing_pdu, 0)) {
 429                         prs_mem_free(&outgoing_pdu);
 430                         return False;
 431                 }
 432
 433                 p->auth.a_u.schannel_auth->seq_num++;
 434         }
 435
 436         /*
 437          * Setup the counts for this PDU.
 438          */
 439
 440         p->out_data.data_sent_length += data_len;
 441         p->out_data.current_pdu_len = p->hdr.frag_len;
 442         p->out_data.current_pdu_sent = 0;
 443
 444         prs_mem_free(&outgoing_pdu);
 445         return True;
 446 }
 447
 448 /*******************************************************************
 449  Generate the next PDU to be returned from the data in p->rdata.
 450  No authentication done.
 451 ********************************************************************/
 452
 453 static bool create_next_pdu_noauth(pipes_struct *p)
 454 {
 455         RPC_HDR_RESP hdr_resp;
 456         uint32 data_len;
 457         uint32 data_space_available;
 458         uint32 data_len_left;
 459         prs_struct outgoing_pdu;
 460
 461         /*
 462          * If we're in the fault state, keep returning fault PDU's until
 463          * the pipe gets closed. JRA.
 464          */
 465
 466         if(p->fault_state) {
 467                 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
 468                 return True;
 469         }
 470
 471         memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
 472
 473         /* Change the incoming request header to a response. */
 474         p->hdr.pkt_type = RPC_RESPONSE;
 475
 476         /* Set up rpc header flags. */
 477         if (p->out_data.data_sent_length == 0) {
 478                 p->hdr.flags = RPC_FLG_FIRST;
 479         } else {
 480                 p->hdr.flags = 0;
 481         }
 482
 483         /*
 484          * Work out how much we can fit in a single PDU.
 485          */
 486
 487         data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
 488
 489         /*
 490          * Ensure there really is data left to send.
 491          */
 492
 493         if(!data_len_left) {
 494                 DEBUG(0,("create_next_pdu_noath: no data left to send !\n"));
 495                 return False;
 496         }
 497
 498         data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN;
 499
 500         /*
 501          * The amount we send is the minimum of the available
 502          * space and the amount left to send.
 503          */
 504
 505         data_len = MIN(data_len_left, data_space_available);
 506
 507         /*
 508          * Set up the alloc hint. This should be the data left to
 509          * send.
 510          */
 511
 512         hdr_resp.alloc_hint = data_len_left;
 513
 514         /*
 515          * Work out if this PDU will be the last.
 516          */
 517
 518         if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
 519                 p->hdr.flags |= RPC_FLG_LAST;
 520         }
 521
 522         /*
 523          * Set up the header lengths.
 524          */
 525
 526         p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len;
 527         p->hdr.auth_len = 0;
 528
 529         /*
 530          * Init the parse struct to point at the outgoing
 531          * data.
 532          */
 533
 534         prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
 535         prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
 536
 537         /* Store the header in the data stream. */
 538         if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
 539                 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR.\n"));
 540                 prs_mem_free(&outgoing_pdu);
 541                 return False;
 542         }
 543
 544         if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
 545                 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR_RESP.\n"));
 546                 prs_mem_free(&outgoing_pdu);
 547                 return False;
 548         }
 549
 550         /* Copy the data into the PDU. */
 551
 552         if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
 553                 DEBUG(0,("create_next_pdu_noauth: failed to copy %u bytes of data.\n", (unsigned int)data_len));
 554                 prs_mem_free(&outgoing_pdu);
 555                 return False;
 556         }
 557
 558         /*
 559          * Setup the counts for this PDU.
 560          */
 561
 562         p->out_data.data_sent_length += data_len;
 563         p->out_data.current_pdu_len = p->hdr.frag_len;
 564         p->out_data.current_pdu_sent = 0;
 565
 566         prs_mem_free(&outgoing_pdu);
 567         return True;
 568 }
 569
 570 /*******************************************************************
 571  Generate the next PDU to be returned from the data in p->rdata.
 572 ********************************************************************/
 573
 574 bool create_next_pdu(pipes_struct *p)
 575 {
 576         switch(p->auth.auth_level) {
 577                 case PIPE_AUTH_LEVEL_NONE:
 578                 case PIPE_AUTH_LEVEL_CONNECT:
 579                         /* This is incorrect for auth level connect. Fixme. JRA */
 580                         return create_next_pdu_noauth(p);
 581
 582                 default:
 583                         switch(p->auth.auth_type) {
 584                                 case PIPE_AUTH_TYPE_NTLMSSP:
 585                                 case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
 586                                         return create_next_pdu_ntlmssp(p);
 587                                 case PIPE_AUTH_TYPE_SCHANNEL:
 588                                         return create_next_pdu_schannel(p);
 589                                 default:
 590                                         break;
 591                         }
 592         }
 593
 594         DEBUG(0,("create_next_pdu: invalid internal auth level %u / type %u",
 595                         (unsigned int)p->auth.auth_level,
 596                         (unsigned int)p->auth.auth_type));
 597         return False;
 598 }
 599
 600 /*******************************************************************
 601  Process an NTLMSSP authentication response.
 602  If this function succeeds, the user has been authenticated
 603  and their domain, name and calling workstation stored in
 604  the pipe struct.
 605 *******************************************************************/
 606
 607 static bool pipe_ntlmssp_verify_final(pipes_struct *p, DATA_BLOB *p_resp_blob)
 608 {
 609         DATA_BLOB reply;
 610         NTSTATUS status;
 611         AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
 612
 613         DEBUG(5,("pipe_ntlmssp_verify_final: pipe %s checking user details\n", p->name));
 614
 615         ZERO_STRUCT(reply);
 616
 617         memset(p->user_name, '\0', sizeof(p->user_name));
 618         memset(p->pipe_user_name, '\0', sizeof(p->pipe_user_name));
 619         memset(p->domain, '\0', sizeof(p->domain));
 620         memset(p->wks, '\0', sizeof(p->wks));
 621
 622         /* Set up for non-authenticated user. */
 623         TALLOC_FREE(p->pipe_user.nt_user_token);
 624         p->pipe_user.ut.ngroups = 0;
 625         SAFE_FREE( p->pipe_user.ut.groups);
 626
 627         /* this has to be done as root in order to verify the password */
 628         become_root();
 629         status = auth_ntlmssp_update(a, *p_resp_blob, &reply);
 630         unbecome_root();
 631
 632         /* Don't generate a reply. */
 633         data_blob_free(&reply);
 634
 635         if (!NT_STATUS_IS_OK(status)) {
 636                 return False;
 637         }
 638
 639         /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
 640            ensure the underlying NTLMSSP flags are also set. If not we should
 641            refuse the bind. */
 642
 643         if (p->auth.auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
 644                 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
 645                         DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet integrity requested "
 646                                 "but client declined signing.\n",
 647                                         p->name ));
 648                         return False;
 649                 }
 650         }
 651         if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
 652                 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
 653                         DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet privacy requested "
 654                                 "but client declined sealing.\n",
 655                                         p->name ));
 656                         return False;
 657                 }
 658         }
 659
 660         fstrcpy(p->user_name, a->ntlmssp_state->user);
 661         fstrcpy(p->pipe_user_name, a->server_info->unix_name);
 662         fstrcpy(p->domain, a->ntlmssp_state->domain);
 663         fstrcpy(p->wks, a->ntlmssp_state->workstation);
 664
 665         DEBUG(5,("pipe_ntlmssp_verify_final: OK: user: %s domain: %s workstation: %s\n",
 666                 p->user_name, p->domain, p->wks));
 667
 668         /*
 669          * Store the UNIX credential data (uid/gid pair) in the pipe structure.
 670          */
 671
 672         p->pipe_user.ut.uid = a->server_info->uid;
 673         p->pipe_user.ut.gid = a->server_info->gid;
 674
 675         /*
 676          * We're an authenticated bind over smbd, so the session key needs to
 677          * be set to "SystemLibraryDTC". Weird, but this is what Windows
 678          * does. See the RPC-SAMBA3SESSIONKEY.
 679          */
 680
 681         data_blob_free(&p->session_key);
 682         p->session_key = generic_session_key();
 683         if (!p->session_key.data) {
 684                 return False;
 685         }
 686
 687         p->pipe_user.ut.ngroups = a->server_info->n_groups;
 688         if (p->pipe_user.ut.ngroups) {
 689                 if (!(p->pipe_user.ut.groups = (gid_t *)memdup(a->server_info->groups,
 690                                                 sizeof(gid_t) * p->pipe_user.ut.ngroups))) {
 691                         DEBUG(0,("failed to memdup group list to p->pipe_user.groups\n"));
 692                         return False;
 693                 }
 694         }
 695
 696         if (a->server_info->ptok) {
 697                 p->pipe_user.nt_user_token =
 698                         dup_nt_token(NULL, a->server_info->ptok);
 699         } else {
 700                 DEBUG(1,("Error: Authmodule failed to provide nt_user_token\n"));
 701                 p->pipe_user.nt_user_token = NULL;
 702                 return False;
 703         }
 704
 705         return True;
 706 }
 707
 708 /*******************************************************************
 709  The switch table for the pipe names and the functions to handle them.
 710 *******************************************************************/
 711
 712 struct rpc_table {
 713         struct {
 714                 const char *clnt;
 715                 const char *srv;
 716         } pipe;
 717         const struct api_struct *cmds;
 718         int n_cmds;
 719 };
 720
 721 static struct rpc_table *rpc_lookup;
 722 static int rpc_lookup_size;
 723
 724 /*******************************************************************
 725  This is the "stage3" NTLMSSP response after a bind request and reply.
 726 *******************************************************************/
 727
 728 bool api_pipe_bind_auth3(pipes_struct *p, prs_struct *rpc_in_p)
 729 {
 730         RPC_HDR_AUTH auth_info;
 731         uint32 pad;
 732         DATA_BLOB blob;
 733
 734         ZERO_STRUCT(blob);
 735
 736         DEBUG(5,("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
 737
 738         if (p->hdr.auth_len == 0) {
 739                 DEBUG(0,("api_pipe_bind_auth3: No auth field sent !\n"));
 740                 goto err;
 741         }
 742
 743         /* 4 bytes padding. */
 744         if (!prs_uint32("pad", rpc_in_p, 0, &pad)) {
 745                 DEBUG(0,("api_pipe_bind_auth3: unmarshall of 4 byte pad failed.\n"));
 746                 goto err;
 747         }
 748
 749         /*
 750          * Decode the authentication verifier response.
 751          */
 752
 753         if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
 754                 DEBUG(0,("api_pipe_bind_auth3: unmarshall of RPC_HDR_AUTH failed.\n"));
 755                 goto err;
 756         }
 757
 758         if (auth_info.auth_type != RPC_NTLMSSP_AUTH_TYPE) {
 759                 DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
 760                         (unsigned int)auth_info.auth_type ));
 761                 return False;
 762         }
 763
 764         blob = data_blob(NULL,p->hdr.auth_len);
 765
 766         if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
 767                 DEBUG(0,("api_pipe_bind_auth3: Failed to pull %u bytes - the response blob.\n",
 768                         (unsigned int)p->hdr.auth_len ));
 769                 goto err;
 770         }
 771
 772         /*
 773          * The following call actually checks the challenge/response data.
 774          * for correctness against the given DOMAIN\user name.
 775          */
 776
 777         if (!pipe_ntlmssp_verify_final(p, &blob)) {
 778                 goto err;
 779         }
 780
 781         data_blob_free(&blob);
 782
 783         p->pipe_bound = True;
 784
 785         return True;
 786
 787  err:
 788
 789         data_blob_free(&blob);
 790         free_pipe_ntlmssp_auth_data(&p->auth);
 791         p->auth.a_u.auth_ntlmssp_state = NULL;
 792
 793         return False;
 794 }
 795
 796 /*******************************************************************
 797  Marshall a bind_nak pdu.
 798 *******************************************************************/
 799
 800 static bool setup_bind_nak(pipes_struct *p)
 801 {
 802         prs_struct outgoing_rpc;
 803         RPC_HDR nak_hdr;
 804         uint16 zero = 0;
 805
 806         /* Free any memory in the current return data buffer. */
 807         prs_mem_free(&p->out_data.rdata);
 808
 809         /*
 810          * Marshall directly into the outgoing PDU space. We
 811          * must do this as we need to set to the bind response
 812          * header and are never sending more than one PDU here.
 813          */
 814
 815         prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
 816         prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
 817
 818         /*
 819          * Initialize a bind_nak header.
 820          */
 821
 822         init_rpc_hdr(&nak_hdr, RPC_BINDNACK, RPC_FLG_FIRST | RPC_FLG_LAST,
 823                 p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
 824
 825         /*
 826          * Marshall the header into the outgoing PDU.
 827          */
 828
 829         if(!smb_io_rpc_hdr("", &nak_hdr, &outgoing_rpc, 0)) {
 830                 DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
 831                 prs_mem_free(&outgoing_rpc);
 832                 return False;
 833         }
 834
 835         /*
 836          * Now add the reject reason.
 837          */
 838
 839         if(!prs_uint16("reject code", &outgoing_rpc, 0, &zero)) {
 840                 prs_mem_free(&outgoing_rpc);
 841                 return False;
 842         }
 843
 844         p->out_data.data_sent_length = 0;
 845         p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
 846         p->out_data.current_pdu_sent = 0;
 847
 848         if (p->auth.auth_data_free_func) {
 849                 (*p->auth.auth_data_free_func)(&p->auth);
 850         }
 851         p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
 852         p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
 853         p->pipe_bound = False;
 854
 855         return True;
 856 }
 857
 858 /*******************************************************************
 859  Marshall a fault pdu.
 860 *******************************************************************/
 861
 862 bool setup_fault_pdu(pipes_struct *p, NTSTATUS status)
 863 {
 864         prs_struct outgoing_pdu;
 865         RPC_HDR fault_hdr;
 866         RPC_HDR_RESP hdr_resp;
 867         RPC_HDR_FAULT fault_resp;
 868
 869         /* Free any memory in the current return data buffer. */
 870         prs_mem_free(&p->out_data.rdata);
 871
 872         /*
 873          * Marshall directly into the outgoing PDU space. We
 874          * must do this as we need to set to the bind response
 875          * header and are never sending more than one PDU here.
 876          */
 877
 878         prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
 879         prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
 880
 881         /*
 882          * Initialize a fault header.
 883          */
 884
 885         init_rpc_hdr(&fault_hdr, RPC_FAULT, RPC_FLG_FIRST | RPC_FLG_LAST | RPC_FLG_NOCALL,
 886             p->hdr.call_id, RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN, 0);
 887
 888         /*
 889          * Initialize the HDR_RESP and FAULT parts of the PDU.
 890          */
 891
 892         memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
 893
 894         fault_resp.status = status;
 895         fault_resp.reserved = 0;
 896
 897         /*
 898          * Marshall the header into the outgoing PDU.
 899          */
 900
 901         if(!smb_io_rpc_hdr("", &fault_hdr, &outgoing_pdu, 0)) {
 902                 DEBUG(0,("setup_fault_pdu: marshalling of RPC_HDR failed.\n"));
 903                 prs_mem_free(&outgoing_pdu);
 904                 return False;
 905         }
 906
 907         if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
 908                 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_RESP.\n"));
 909                 prs_mem_free(&outgoing_pdu);
 910                 return False;
 911         }
 912
 913         if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &outgoing_pdu, 0)) {
 914                 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_FAULT.\n"));
 915                 prs_mem_free(&outgoing_pdu);
 916                 return False;
 917         }
 918
 919         p->out_data.data_sent_length = 0;
 920         p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
 921         p->out_data.current_pdu_sent = 0;
 922
 923         prs_mem_free(&outgoing_pdu);
 924         return True;
 925 }
 926
 927 #if 0
 928 /*******************************************************************
 929  Marshall a cancel_ack pdu.
 930  We should probably check the auth-verifier here.
 931 *******************************************************************/
 932
 933 bool setup_cancel_ack_reply(pipes_struct *p, prs_struct *rpc_in_p)
 934 {
 935         prs_struct outgoing_pdu;
 936         RPC_HDR ack_reply_hdr;
 937
 938         /* Free any memory in the current return data buffer. */
 939         prs_mem_free(&p->out_data.rdata);
 940
 941         /*
 942          * Marshall directly into the outgoing PDU space. We
 943          * must do this as we need to set to the bind response
 944          * header and are never sending more than one PDU here.
 945          */
 946
 947         prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
 948         prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
 949
 950         /*
 951          * Initialize a cancel_ack header.
 952          */
 953
 954         init_rpc_hdr(&ack_reply_hdr, RPC_CANCEL_ACK, RPC_FLG_FIRST | RPC_FLG_LAST,
 955                         p->hdr.call_id, RPC_HEADER_LEN, 0);
 956
 957         /*
 958          * Marshall the header into the outgoing PDU.
 959          */
 960
 961         if(!smb_io_rpc_hdr("", &ack_reply_hdr, &outgoing_pdu, 0)) {
 962                 DEBUG(0,("setup_cancel_ack_reply: marshalling of RPC_HDR failed.\n"));
 963                 prs_mem_free(&outgoing_pdu);
 964                 return False;
 965         }
 966
 967         p->out_data.data_sent_length = 0;
 968         p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
 969         p->out_data.current_pdu_sent = 0;
 970
 971         prs_mem_free(&outgoing_pdu);
 972         return True;
 973 }
 974 #endif
 975
 976 /*******************************************************************
 977  Ensure a bind request has the correct abstract & transfer interface.
 978  Used to reject unknown binds from Win2k.
 979 *******************************************************************/
 980
 981 bool check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
 982                     RPC_IFACE* transfer, uint32 context_id)
 983 {
 984         char *pipe_name = p->name;
 985         int i=0;
 986         fstring pname;
 987
 988         fstrcpy(pname,"\\PIPE\\");
 989         fstrcat(pname,pipe_name);
 990
 991         DEBUG(3,("check_bind_req for %s\n", pname));
 992
 993         /* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
 994
 995         for ( i=0; pipe_names[i].client_pipe; i++ ) {
 996                 DEBUG(10,("checking %s\n", pipe_names[i].client_pipe));
 997                 if ( strequal(pipe_names[i].client_pipe, pname)
 998                         && (abstract->version == pipe_names[i].abstr_syntax.version)
 999                         && (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid, sizeof(struct GUID)) == 0)
1000                         && (transfer->version == pipe_names[i].trans_syntax.version)
1001                         && (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(struct GUID)) == 0) ) {
1002                         struct api_struct       *fns = NULL;
1003                         int                     n_fns = 0;
1004                         PIPE_RPC_FNS            *context_fns;
1005
1006                         if ( !(context_fns = SMB_MALLOC_P(PIPE_RPC_FNS)) ) {
1007                                 DEBUG(0,("check_bind_req: malloc() failed!\n"));
1008                                 return False;
1009                         }
1010
1011                         /* save the RPC function table associated with this bind */
1012
1013                         get_pipe_fns(i, &fns, &n_fns);
1014
1015                         context_fns->cmds = fns;
1016                         context_fns->n_cmds = n_fns;
1017                         context_fns->context_id = context_id;
1018
1019                         /* add to the list of open contexts */
1020
1021                         DLIST_ADD( p->contexts, context_fns );
1022
1023                         break;
1024                 }
1025         }
1026
1027         if(pipe_names[i].client_pipe == NULL) {
1028                 return False;
1029         }
1030
1031         return True;
1032 }
1033
1034 /*******************************************************************
1035  Register commands to an RPC pipe
1036 *******************************************************************/
1037
1038 NTSTATUS rpc_pipe_register_commands(int version, const char *clnt, const char *srv, const struct api_struct *cmds, int size)
1039 {
1040         struct rpc_table *rpc_entry;
1041
1042         if (!clnt || !srv || !cmds) {
1043                 return NT_STATUS_INVALID_PARAMETER;
1044         }
1045
1046         if (version != SMB_RPC_INTERFACE_VERSION) {
1047                 DEBUG(0,("Can't register rpc commands!\n"
1048                          "You tried to register a rpc module with SMB_RPC_INTERFACE_VERSION %d"
1049                          ", while this version of samba uses version %d!\n",
1050                          version,SMB_RPC_INTERFACE_VERSION));
1051                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
1052         }
1053
1054         /* TODO:
1055          *
1056          * we still need to make sure that don't register the same commands twice!!!
1057          *
1058          * --metze
1059          */
1060
1061         /* We use a temporary variable because this call can fail and
1062            rpc_lookup will still be valid afterwards.  It could then succeed if
1063            called again later */
1064         rpc_lookup_size++;
1065         rpc_entry = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(rpc_lookup, struct rpc_table, rpc_lookup_size);
1066         if (NULL == rpc_entry) {
1067                 rpc_lookup_size--;
1068                 DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
1069                 return NT_STATUS_NO_MEMORY;
1070         } else {
1071                 rpc_lookup = rpc_entry;
1072         }
1073
1074         rpc_entry = rpc_lookup + (rpc_lookup_size - 1);
1075         ZERO_STRUCTP(rpc_entry);
1076         rpc_entry->pipe.clnt = SMB_STRDUP(clnt);
1077         rpc_entry->pipe.srv = SMB_STRDUP(srv);
1078         rpc_entry->cmds = cmds;
1079         rpc_entry->n_cmds = size;
1080
1081         return NT_STATUS_OK;
1082 }
1083
1084 /*******************************************************************
1085  Handle a SPNEGO krb5 bind auth.
1086 *******************************************************************/
1087
1088 static bool pipe_spnego_auth_bind_kerberos(pipes_struct *p, prs_struct *rpc_in_p, RPC_HDR_AUTH *pauth_info,
1089                 DATA_BLOB *psecblob, prs_struct *pout_auth)
1090 {
1091         return False;
1092 }
1093
1094 /*******************************************************************
1095  Handle the first part of a SPNEGO bind auth.
1096 *******************************************************************/
1097
1098 static bool pipe_spnego_auth_bind_negotiate(pipes_struct *p, prs_struct *rpc_in_p,
1099                                         RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1100 {
1101         DATA_BLOB blob;
1102         DATA_BLOB secblob;
1103         DATA_BLOB response;
1104         DATA_BLOB chal;
1105         char *OIDs[ASN1_MAX_OIDS];
1106         int i;
1107         NTSTATUS status;
1108         bool got_kerberos_mechanism = False;
1109         AUTH_NTLMSSP_STATE *a = NULL;
1110         RPC_HDR_AUTH auth_info;
1111
1112         ZERO_STRUCT(secblob);
1113         ZERO_STRUCT(chal);
1114         ZERO_STRUCT(response);
1115
1116         /* Grab the SPNEGO blob. */
1117         blob = data_blob(NULL,p->hdr.auth_len);
1118
1119         if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1120                 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to pull %u bytes - the SPNEGO auth header.\n",
1121                         (unsigned int)p->hdr.auth_len ));
1122                 goto err;
1123         }
1124
1125         if (blob.data[0] != ASN1_APPLICATION(0)) {
1126                 goto err;
1127         }
1128
1129         /* parse out the OIDs and the first sec blob */
1130         if (!parse_negTokenTarg(blob, OIDs, &secblob)) {
1131                 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to parse the security blob.\n"));
1132                 goto err;
1133         }
1134
1135         if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 || strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
1136                 got_kerberos_mechanism = True;
1137         }
1138
1139         for (i=0;OIDs[i];i++) {
1140                 DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got OID %s\n", OIDs[i]));
1141                 SAFE_FREE(OIDs[i]);
1142         }
1143         DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got secblob of size %lu\n", (unsigned long)secblob.length));
1144
1145         if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) || lp_use_kerberos_keytab()) ) {
1146                 bool ret = pipe_spnego_auth_bind_kerberos(p, rpc_in_p, pauth_info, &secblob, pout_auth);
1147                 data_blob_free(&secblob);
1148                 data_blob_free(&blob);
1149                 return ret;
1150         }
1151
1152         if (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP && p->auth.a_u.auth_ntlmssp_state) {
1153                 /* Free any previous auth type. */
1154                 free_pipe_ntlmssp_auth_data(&p->auth);
1155         }
1156
1157         /* Initialize the NTLM engine. */
1158         status = auth_ntlmssp_start(&a);
1159         if (!NT_STATUS_IS_OK(status)) {
1160                 goto err;
1161         }
1162
1163         /*
1164          * Pass the first security blob of data to it.
1165          * This can return an error or NT_STATUS_MORE_PROCESSING_REQUIRED
1166          * which means we need another packet to complete the bind.
1167          */
1168
1169         status = auth_ntlmssp_update(a, secblob, &chal);
1170
1171         if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1172                 DEBUG(3,("pipe_spnego_auth_bind_negotiate: auth_ntlmssp_update failed.\n"));
1173                 goto err;
1174         }
1175
1176         /* Generate the response blob we need for step 2 of the bind. */
1177         response = spnego_gen_auth_response(&chal, status, OID_NTLMSSP);
1178
1179         /* Copy the blob into the pout_auth parse struct */
1180         init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1181         if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1182                 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of RPC_HDR_AUTH failed.\n"));
1183                 goto err;
1184         }
1185
1186         if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1187                 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of data blob failed.\n"));
1188                 goto err;
1189         }
1190
1191         p->auth.a_u.auth_ntlmssp_state = a;
1192         p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1193         p->auth.auth_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
1194
1195         data_blob_free(&blob);
1196         data_blob_free(&secblob);
1197         data_blob_free(&chal);
1198         data_blob_free(&response);
1199
1200         /* We can't set pipe_bound True yet - we need an RPC_ALTER_CONTEXT response packet... */
1201         return True;
1202
1203  err:
1204
1205         data_blob_free(&blob);
1206         data_blob_free(&secblob);
1207         data_blob_free(&chal);
1208         data_blob_free(&response);
1209
1210         p->auth.a_u.auth_ntlmssp_state = NULL;
1211
1212         return False;
1213 }
1214
1215 /*******************************************************************
1216  Handle the second part of a SPNEGO bind auth.
1217 *******************************************************************/
1218
1219 static bool pipe_spnego_auth_bind_continue(pipes_struct *p, prs_struct *rpc_in_p,
1220                                         RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1221 {
1222         RPC_HDR_AUTH auth_info;
1223         DATA_BLOB spnego_blob;
1224         DATA_BLOB auth_blob;
1225         DATA_BLOB auth_reply;
1226         DATA_BLOB response;
1227         AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1228
1229         ZERO_STRUCT(spnego_blob);
1230         ZERO_STRUCT(auth_blob);
1231         ZERO_STRUCT(auth_reply);
1232         ZERO_STRUCT(response);
1233
1234         if (p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP || !a) {
1235                 DEBUG(0,("pipe_spnego_auth_bind_continue: not in NTLMSSP auth state.\n"));
1236                 goto err;
1237         }
1238
1239         /* Grab the SPNEGO blob. */
1240         spnego_blob = data_blob(NULL,p->hdr.auth_len);
1241
1242         if (!prs_copy_data_out((char *)spnego_blob.data, rpc_in_p, p->hdr.auth_len)) {
1243                 DEBUG(0,("pipe_spnego_auth_bind_continue: Failed to pull %u bytes - the SPNEGO auth header.\n",
1244                         (unsigned int)p->hdr.auth_len ));
1245                 goto err;
1246         }
1247
1248         if (spnego_blob.data[0] != ASN1_CONTEXT(1)) {
1249                 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob type.\n"));
1250                 goto err;
1251         }
1252
1253         if (!spnego_parse_auth(spnego_blob, &auth_blob)) {
1254                 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob.\n"));
1255                 goto err;
1256         }
1257
1258         /*
1259          * The following call actually checks the challenge/response data.
1260          * for correctness against the given DOMAIN\user name.
1261          */
1262
1263         if (!pipe_ntlmssp_verify_final(p, &auth_blob)) {
1264                 goto err;
1265         }
1266
1267         data_blob_free(&spnego_blob);
1268         data_blob_free(&auth_blob);
1269
1270         /* Generate the spnego "accept completed" blob - no incoming data. */
1271         response = spnego_gen_auth_response(&auth_reply, NT_STATUS_OK, OID_NTLMSSP);
1272
1273         /* Copy the blob into the pout_auth parse struct */
1274         init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1275         if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1276                 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of RPC_HDR_AUTH failed.\n"));
1277                 goto err;
1278         }
1279
1280         if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1281                 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of data blob failed.\n"));
1282                 goto err;
1283         }
1284
1285         data_blob_free(&auth_reply);
1286         data_blob_free(&response);
1287
1288         p->pipe_bound = True;
1289
1290         return True;
1291
1292  err:
1293
1294         data_blob_free(&spnego_blob);
1295         data_blob_free(&auth_blob);
1296         data_blob_free(&auth_reply);
1297         data_blob_free(&response);
1298
1299         free_pipe_ntlmssp_auth_data(&p->auth);
1300         p->auth.a_u.auth_ntlmssp_state = NULL;
1301
1302         return False;
1303 }
1304
1305 /*******************************************************************
1306  Handle an schannel bind auth.
1307 *******************************************************************/
1308
1309 static bool pipe_schannel_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1310                                         RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1311 {
1312         RPC_HDR_AUTH auth_info;
1313         RPC_AUTH_SCHANNEL_NEG neg;
1314         RPC_AUTH_VERIFIER auth_verifier;
1315         bool ret;
1316         struct dcinfo *pdcinfo;
1317         uint32 flags;
1318
1319         if (!smb_io_rpc_auth_schannel_neg("", &neg, rpc_in_p, 0)) {
1320                 DEBUG(0,("pipe_schannel_auth_bind: Could not unmarshal SCHANNEL auth neg\n"));
1321                 return False;
1322         }
1323
1324         /*
1325          * The neg.myname key here must match the remote computer name
1326          * given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
1327          * operations that use credentials.
1328          */
1329
1330         become_root();
1331         ret = secrets_restore_schannel_session_info(p->mem_ctx, neg.myname, &pdcinfo);
1332         unbecome_root();
1333
1334         if (!ret) {
1335                 DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
1336                 return False;
1337         }
1338
1339         p->auth.a_u.schannel_auth = TALLOC_P(p->pipe_state_mem_ctx, struct schannel_auth_struct);
1340         if (!p->auth.a_u.schannel_auth) {
1341                 TALLOC_FREE(pdcinfo);
1342                 return False;
1343         }
1344
1345         memset(p->auth.a_u.schannel_auth->sess_key, 0, sizeof(p->auth.a_u.schannel_auth->sess_key));
1346         memcpy(p->auth.a_u.schannel_auth->sess_key, pdcinfo->sess_key,
1347                         sizeof(pdcinfo->sess_key));
1348
1349         TALLOC_FREE(pdcinfo);
1350
1351         p->auth.a_u.schannel_auth->seq_num = 0;
1352
1353         /*
1354          * JRA. Should we also copy the schannel session key into the pipe session key p->session_key
1355          * here ? We do that for NTLMSSP, but the session key is already set up from the vuser
1356          * struct of the person who opened the pipe. I need to test this further. JRA.
1357          *
1358          * VL. As we are mapping this to guest set the generic key
1359          * "SystemLibraryDTC" key here. It's a bit difficult to test against
1360          * W2k3, as it does not allow schannel binds against SAMR and LSA
1361          * anymore.
1362          */
1363
1364         data_blob_free(&p->session_key);
1365         p->session_key = generic_session_key();
1366         if (p->session_key.data == NULL) {
1367                 DEBUG(0, ("pipe_schannel_auth_bind: Could not alloc session"
1368                           " key\n"));
1369                 return False;
1370         }
1371
1372         init_rpc_hdr_auth(&auth_info, RPC_SCHANNEL_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1373         if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1374                 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1375                 return False;
1376         }
1377
1378         /*** SCHANNEL verifier ***/
1379
1380         init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
1381         if(!smb_io_rpc_schannel_verifier("", &auth_verifier, pout_auth, 0)) {
1382                 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_AUTH_VERIFIER failed.\n"));
1383                 return False;
1384         }
1385
1386         prs_align(pout_auth);
1387
1388         flags = 5;
1389         if(!prs_uint32("flags ", pout_auth, 0, &flags)) {
1390                 return False;
1391         }
1392
1393         DEBUG(10,("pipe_schannel_auth_bind: schannel auth: domain [%s] myname [%s]\n",
1394                 neg.domain, neg.myname));
1395
1396         /* We're finished with this bind - no more packets. */
1397         p->auth.auth_data_free_func = NULL;
1398         p->auth.auth_type = PIPE_AUTH_TYPE_SCHANNEL;
1399
1400         p->pipe_bound = True;
1401
1402         return True;
1403 }
1404
1405 /*******************************************************************
1406  Handle an NTLMSSP bind auth.
1407 *******************************************************************/
1408
1409 static bool pipe_ntlmssp_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1410                                         RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1411 {
1412         RPC_HDR_AUTH auth_info;
1413         DATA_BLOB blob;
1414         DATA_BLOB response;
1415         NTSTATUS status;
1416         AUTH_NTLMSSP_STATE *a = NULL;
1417
1418         ZERO_STRUCT(blob);
1419         ZERO_STRUCT(response);
1420
1421         /* Grab the NTLMSSP blob. */
1422         blob = data_blob(NULL,p->hdr.auth_len);
1423
1424         if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1425                 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to pull %u bytes - the NTLM auth header.\n",
1426                         (unsigned int)p->hdr.auth_len ));
1427                 goto err;
1428         }
1429
1430         if (strncmp((char *)blob.data, "NTLMSSP", 7) != 0) {
1431                 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to read NTLMSSP in blob\n"));
1432                 goto err;
1433         }
1434
1435         /* We have an NTLMSSP blob. */
1436         status = auth_ntlmssp_start(&a);
1437         if (!NT_STATUS_IS_OK(status)) {
1438                 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_start failed: %s\n",
1439                         nt_errstr(status) ));
1440                 goto err;
1441         }
1442
1443         status = auth_ntlmssp_update(a, blob, &response);
1444         if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1445                 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_update failed: %s\n",
1446                         nt_errstr(status) ));
1447                 goto err;
1448         }
1449
1450         data_blob_free(&blob);
1451
1452         /* Copy the blob into the pout_auth parse struct */
1453         init_rpc_hdr_auth(&auth_info, RPC_NTLMSSP_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1454         if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1455                 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1456                 goto err;
1457         }
1458
1459         if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1460                 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of data blob failed.\n"));
1461                 goto err;
1462         }
1463
1464         p->auth.a_u.auth_ntlmssp_state = a;
1465         p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1466         p->auth.auth_type = PIPE_AUTH_TYPE_NTLMSSP;
1467
1468         data_blob_free(&blob);
1469         data_blob_free(&response);
1470
1471         DEBUG(10,("pipe_ntlmssp_auth_bind: NTLMSSP auth started\n"));
1472
1473         /* We can't set pipe_bound True yet - we need an RPC_AUTH3 response packet... */
1474         return True;
1475
1476   err:
1477
1478         data_blob_free(&blob);
1479         data_blob_free(&response);
1480
1481         free_pipe_ntlmssp_auth_data(&p->auth);
1482         p->auth.a_u.auth_ntlmssp_state = NULL;
1483         return False;
1484 }
1485
1486 /*******************************************************************
1487  Respond to a pipe bind request.
1488 *******************************************************************/
1489
1490 bool api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
1491 {
1492         RPC_HDR_BA hdr_ba;
1493         RPC_HDR_RB hdr_rb;
1494         RPC_HDR_AUTH auth_info;
1495         uint16 assoc_gid;
1496         fstring ack_pipe_name;
1497         prs_struct out_hdr_ba;
1498         prs_struct out_auth;
1499         prs_struct outgoing_rpc;
1500         int i = 0;
1501         int auth_len = 0;
1502         unsigned int auth_type = RPC_ANONYMOUS_AUTH_TYPE;
1503
1504         /* No rebinds on a bound pipe - use alter context. */
1505         if (p->pipe_bound) {
1506                 DEBUG(2,("api_pipe_bind_req: rejecting bind request on bound pipe %s.\n", p->pipe_srv_name));
1507                 return setup_bind_nak(p);
1508         }
1509
1510         prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1511
1512         /*
1513          * Marshall directly into the outgoing PDU space. We
1514          * must do this as we need to set to the bind response
1515          * header and are never sending more than one PDU here.
1516          */
1517
1518         prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1519
1520         /*
1521          * Setup the memory to marshall the ba header, and the
1522          * auth footers.
1523          */
1524
1525         if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1526                 DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
1527                 prs_mem_free(&outgoing_rpc);
1528                 return False;
1529         }
1530
1531         if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1532                 DEBUG(0,("api_pipe_bind_req: malloc out_auth failed.\n"));
1533                 prs_mem_free(&outgoing_rpc);
1534                 prs_mem_free(&out_hdr_ba);
1535                 return False;
1536         }
1537
1538         DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
1539
1540         /*
1541          * Try and find the correct pipe name to ensure
1542          * that this is a pipe name we support.
1543          */
1544
1545
1546         for (i = 0; i < rpc_lookup_size; i++) {
1547                 if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1548                         DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1549                                 rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1550                         fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1551                         break;
1552                 }
1553         }
1554
1555         if (i == rpc_lookup_size) {
1556                 if (NT_STATUS_IS_ERR(smb_probe_module("rpc", p->name))) {
1557                        DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
1558                                 p->name ));
1559                         prs_mem_free(&outgoing_rpc);
1560                         prs_mem_free(&out_hdr_ba);
1561                         prs_mem_free(&out_auth);
1562
1563                         return setup_bind_nak(p);
1564                 }
1565
1566                 for (i = 0; i < rpc_lookup_size; i++) {
1567                        if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1568                                DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1569                                          rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1570                                fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1571                                break;
1572                        }
1573                 }
1574
1575                 if (i == rpc_lookup_size) {
1576                         DEBUG(0, ("module %s doesn't provide functions for pipe %s!\n", p->name, p->name));
1577                         goto err_exit;
1578                 }
1579         }
1580
1581         /* decode the bind request */
1582         if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0))  {
1583                 DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_RB struct.\n"));
1584                 goto err_exit;
1585         }
1586
1587         /* name has to be \PIPE\xxxxx */
1588         fstrcpy(ack_pipe_name, "\\PIPE\\");
1589         fstrcat(ack_pipe_name, p->pipe_srv_name);
1590
1591         DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
1592
1593         /*
1594          * Check if this is an authenticated bind request.
1595          */
1596
1597         if (p->hdr.auth_len) {
1598                 /*
1599                  * Decode the authentication verifier.
1600                  */
1601
1602                 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1603                         DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1604                         goto err_exit;
1605                 }
1606
1607                 auth_type = auth_info.auth_type;
1608
1609                 /* Work out if we have to sign or seal etc. */
1610                 switch (auth_info.auth_level) {
1611                         case RPC_AUTH_LEVEL_INTEGRITY:
1612                                 p->auth.auth_level = PIPE_AUTH_LEVEL_INTEGRITY;
1613                                 break;
1614                         case RPC_AUTH_LEVEL_PRIVACY:
1615                                 p->auth.auth_level = PIPE_AUTH_LEVEL_PRIVACY;
1616                                 break;
1617                         default:
1618                                 DEBUG(0,("api_pipe_bind_req: unexpected auth level (%u).\n",
1619                                         (unsigned int)auth_info.auth_level ));
1620                                 goto err_exit;
1621                 }
1622         } else {
1623                 ZERO_STRUCT(auth_info);
1624         }
1625
1626         assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1627
1628         switch(auth_type) {
1629                 case RPC_NTLMSSP_AUTH_TYPE:
1630                         if (!pipe_ntlmssp_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1631                                 goto err_exit;
1632                         }
1633                         assoc_gid = 0x7a77;
1634                         break;
1635
1636                 case RPC_SCHANNEL_AUTH_TYPE:
1637                         if (!pipe_schannel_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1638                                 goto err_exit;
1639                         }
1640                         break;
1641
1642                 case RPC_SPNEGO_AUTH_TYPE:
1643                         if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p, &auth_info, &out_auth)) {
1644                                 goto err_exit;
1645                         }
1646                         break;
1647
1648                 case RPC_ANONYMOUS_AUTH_TYPE:
1649                         /* Unauthenticated bind request. */
1650                         /* Get the authenticated pipe user from current_user */
1651                         if (!copy_current_user(&p->pipe_user, &current_user)) {
1652                                 DEBUG(10, ("Could not copy current user\n"));
1653                                 goto err_exit;
1654                         }
1655                         /* We're finished - no more packets. */
1656                         p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
1657                         /* We must set the pipe auth_level here also. */
1658                         p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
1659                         p->pipe_bound = True;
1660                         /* The session key was initialized from the SMB
1661                          * session in make_internal_rpc_pipe_p */
1662                         break;
1663
1664                 default:
1665                         DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n", auth_type ));
1666                         goto err_exit;
1667         }
1668
1669         /*
1670          * Create the bind response struct.
1671          */
1672
1673         /* If the requested abstract synt uuid doesn't match our client pipe,
1674                 reject the bind_ack & set the transfer interface synt to all 0's,
1675                 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1676                 unknown to NT4)
1677                 Needed when adding entries to a DACL from NT5 - SK */
1678
1679         if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1680                                 hdr_rb.rpc_context[0].context_id )) {
1681                 init_rpc_hdr_ba(&hdr_ba,
1682                         RPC_MAX_PDU_FRAG_LEN,
1683                         RPC_MAX_PDU_FRAG_LEN,
1684                         assoc_gid,
1685                         ack_pipe_name,
1686                         0x1, 0x0, 0x0,
1687                         &hdr_rb.rpc_context[0].transfer[0]);
1688         } else {
1689                 RPC_IFACE null_interface;
1690                 ZERO_STRUCT(null_interface);
1691                 /* Rejection reason: abstract syntax not supported */
1692                 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1693                                         RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1694                                         ack_pipe_name, 0x1, 0x2, 0x1,
1695                                         &null_interface);
1696                 p->pipe_bound = False;
1697         }
1698
1699         /*
1700          * and marshall it.
1701          */
1702
1703         if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1704                 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_BA failed.\n"));
1705                 goto err_exit;
1706         }
1707
1708         /*
1709          * Create the header, now we know the length.
1710          */
1711
1712         if (prs_offset(&out_auth)) {
1713                 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1714         }
1715
1716         init_rpc_hdr(&p->hdr, RPC_BINDACK, RPC_FLG_FIRST | RPC_FLG_LAST,
1717                         p->hdr.call_id,
1718                         RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1719                         auth_len);
1720
1721         /*
1722          * Marshall the header into the outgoing PDU.
1723          */
1724
1725         if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1726                 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
1727                 goto err_exit;
1728         }
1729
1730         /*
1731          * Now add the RPC_HDR_BA and any auth needed.
1732          */
1733
1734         if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1735                 DEBUG(0,("api_pipe_bind_req: append of RPC_HDR_BA failed.\n"));
1736                 goto err_exit;
1737         }
1738
1739         if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1740                 DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
1741                 goto err_exit;
1742         }
1743
1744         /*
1745          * Setup the lengths for the initial reply.
1746          */
1747
1748         p->out_data.data_sent_length = 0;
1749         p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1750         p->out_data.current_pdu_sent = 0;
1751
1752         prs_mem_free(&out_hdr_ba);
1753         prs_mem_free(&out_auth);
1754
1755         return True;
1756
1757   err_exit:
1758
1759         prs_mem_free(&outgoing_rpc);
1760         prs_mem_free(&out_hdr_ba);
1761         prs_mem_free(&out_auth);
1762         return setup_bind_nak(p);
1763 }
1764
1765 /****************************************************************************
1766  Deal with an alter context call. Can be third part of 3 leg auth request for
1767  SPNEGO calls.
1768 ****************************************************************************/
1769
1770 bool api_pipe_alter_context(pipes_struct *p, prs_struct *rpc_in_p)
1771 {
1772         RPC_HDR_BA hdr_ba;
1773         RPC_HDR_RB hdr_rb;
1774         RPC_HDR_AUTH auth_info;
1775         uint16 assoc_gid;
1776         fstring ack_pipe_name;
1777         prs_struct out_hdr_ba;
1778         prs_struct out_auth;
1779         prs_struct outgoing_rpc;
1780         int auth_len = 0;
1781
1782         prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1783
1784         /*
1785          * Marshall directly into the outgoing PDU space. We
1786          * must do this as we need to set to the bind response
1787          * header and are never sending more than one PDU here.
1788          */
1789
1790         prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1791
1792         /*
1793          * Setup the memory to marshall the ba header, and the
1794          * auth footers.
1795          */
1796
1797         if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1798                 DEBUG(0,("api_pipe_alter_context: malloc out_hdr_ba failed.\n"));
1799                 prs_mem_free(&outgoing_rpc);
1800                 return False;
1801         }
1802
1803         if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1804                 DEBUG(0,("api_pipe_alter_context: malloc out_auth failed.\n"));
1805                 prs_mem_free(&outgoing_rpc);
1806                 prs_mem_free(&out_hdr_ba);
1807                 return False;
1808         }
1809
1810         DEBUG(5,("api_pipe_alter_context: decode request. %d\n", __LINE__));
1811
1812         /* decode the alter context request */
1813         if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0))  {
1814                 DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_RB struct.\n"));
1815                 goto err_exit;
1816         }
1817
1818         /* secondary address CAN be NULL
1819          * as the specs say it's ignored.
1820          * It MUST be NULL to have the spoolss working.
1821          */
1822         fstrcpy(ack_pipe_name,"");
1823
1824         DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
1825
1826         /*
1827          * Check if this is an authenticated alter context request.
1828          */
1829
1830         if (p->hdr.auth_len != 0) {
1831                 /*
1832                  * Decode the authentication verifier.
1833                  */
1834
1835                 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1836                         DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1837                         goto err_exit;
1838                 }
1839
1840                 /*
1841                  * Currently only the SPNEGO auth type uses the alter ctx
1842                  * response in place of the NTLMSSP auth3 type.
1843                  */
1844
1845                 if (auth_info.auth_type == RPC_SPNEGO_AUTH_TYPE) {
1846                         /* We can only finish if the pipe is unbound. */
1847                         if (!p->pipe_bound) {
1848                                 if (!pipe_spnego_auth_bind_continue(p, rpc_in_p, &auth_info, &out_auth)) {
1849                                         goto err_exit;
1850                                 }
1851                         } else {
1852                                 goto err_exit;
1853                         }
1854                 }
1855         } else {
1856                 ZERO_STRUCT(auth_info);
1857         }
1858
1859         assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1860
1861         /*
1862          * Create the bind response struct.
1863          */
1864
1865         /* If the requested abstract synt uuid doesn't match our client pipe,
1866                 reject the bind_ack & set the transfer interface synt to all 0's,
1867                 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1868                 unknown to NT4)
1869                 Needed when adding entries to a DACL from NT5 - SK */
1870
1871         if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1872                                 hdr_rb.rpc_context[0].context_id )) {
1873                 init_rpc_hdr_ba(&hdr_ba,
1874                         RPC_MAX_PDU_FRAG_LEN,
1875                         RPC_MAX_PDU_FRAG_LEN,
1876                         assoc_gid,
1877                         ack_pipe_name,
1878                         0x1, 0x0, 0x0,
1879                         &hdr_rb.rpc_context[0].transfer[0]);
1880         } else {
1881                 RPC_IFACE null_interface;
1882                 ZERO_STRUCT(null_interface);
1883                 /* Rejection reason: abstract syntax not supported */
1884                 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1885                                         RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1886                                         ack_pipe_name, 0x1, 0x2, 0x1,
1887                                         &null_interface);
1888                 p->pipe_bound = False;
1889         }
1890
1891         /*
1892          * and marshall it.
1893          */
1894
1895         if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1896                 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR_BA failed.\n"));
1897                 goto err_exit;
1898         }
1899
1900         /*
1901          * Create the header, now we know the length.
1902          */
1903
1904         if (prs_offset(&out_auth)) {
1905                 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1906         }
1907
1908         init_rpc_hdr(&p->hdr, RPC_ALTCONTRESP, RPC_FLG_FIRST | RPC_FLG_LAST,
1909                         p->hdr.call_id,
1910                         RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1911                         auth_len);
1912
1913         /*
1914          * Marshall the header into the outgoing PDU.
1915          */
1916
1917         if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1918                 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR failed.\n"));
1919                 goto err_exit;
1920         }
1921
1922         /*
1923          * Now add the RPC_HDR_BA and any auth needed.
1924          */
1925
1926         if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1927                 DEBUG(0,("api_pipe_alter_context: append of RPC_HDR_BA failed.\n"));
1928                 goto err_exit;
1929         }
1930
1931         if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1932                 DEBUG(0,("api_pipe_alter_context: append of auth info failed.\n"));
1933                 goto err_exit;
1934         }
1935
1936         /*
1937          * Setup the lengths for the initial reply.
1938          */
1939
1940         p->out_data.data_sent_length = 0;
1941         p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1942         p->out_data.current_pdu_sent = 0;
1943
1944         prs_mem_free(&out_hdr_ba);
1945         prs_mem_free(&out_auth);
1946
1947         return True;
1948
1949   err_exit:
1950
1951         prs_mem_free(&outgoing_rpc);
1952         prs_mem_free(&out_hdr_ba);
1953         prs_mem_free(&out_auth);
1954         return setup_bind_nak(p);
1955 }
1956
1957 /****************************************************************************
1958  Deal with NTLMSSP sign & seal processing on an RPC request.
1959 ****************************************************************************/
1960
1961 bool api_pipe_ntlmssp_auth_process(pipes_struct *p, prs_struct *rpc_in,
1962                                         uint32 *p_ss_padding_len, NTSTATUS *pstatus)
1963 {
1964         RPC_HDR_AUTH auth_info;
1965         uint32 auth_len = p->hdr.auth_len;
1966         uint32 save_offset = prs_offset(rpc_in);
1967         AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1968         unsigned char *data = NULL;
1969         size_t data_len;
1970         unsigned char *full_packet_data = NULL;
1971         size_t full_packet_data_len;
1972         DATA_BLOB auth_blob;
1973
1974         *pstatus = NT_STATUS_OK;
1975
1976         if (p->auth.auth_level == PIPE_AUTH_LEVEL_NONE || p->auth.auth_level == PIPE_AUTH_LEVEL_CONNECT) {
1977                 return True;
1978         }
1979
1980         if (!a) {
1981                 *pstatus = NT_STATUS_INVALID_PARAMETER;
1982                 return False;
1983         }
1984
1985         /* Ensure there's enough data for an authenticated request. */
1986         if ((auth_len > RPC_MAX_SIGN_SIZE) ||
1987                         (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len)) {
1988                 DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len %u is too large.\n",
1989                         (unsigned int)auth_len ));
1990                 *pstatus = NT_STATUS_INVALID_PARAMETER;
1991                 return False;
1992         }
1993
1994         /*
1995          * We need the full packet data + length (minus auth stuff) as well as the packet data + length
1996          * after the RPC header.
1997          * We need to pass in the full packet (minus auth len) to the NTLMSSP sign and check seal
1998          * functions as NTLMv2 checks the rpc headers also.
1999          */
2000
2001         data = (unsigned char *)(prs_data_p(rpc_in) + RPC_HDR_REQ_LEN);
2002         data_len = (size_t)(p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN - RPC_HDR_AUTH_LEN - auth_len);
2003
2004         full_packet_data = p->in_data.current_in_pdu;
2005         full_packet_data_len = p->hdr.frag_len - auth_len;
2006
2007         /* Pull the auth header and the following data into a blob. */
2008         if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2009                 DEBUG(0,("api_pipe_ntlmssp_auth_process: cannot move offset to %u.\n",
2010                         (unsigned int)RPC_HDR_REQ_LEN + (unsigned int)data_len ));
2011                 *pstatus = NT_STATUS_INVALID_PARAMETER;
2012                 return False;
2013         }
2014
2015         if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2016                 DEBUG(0,("api_pipe_ntlmssp_auth_process: failed to unmarshall RPC_HDR_AUTH.\n"));
2017                 *pstatus = NT_STATUS_INVALID_PARAMETER;
2018                 return False;
2019         }
2020
2021         auth_blob.data = (unsigned char *)prs_data_p(rpc_in) + prs_offset(rpc_in);
2022         auth_blob.length = auth_len;
2023
2024         switch (p->auth.auth_level) {
2025                 case PIPE_AUTH_LEVEL_PRIVACY:
2026                         /* Data is encrypted. */
2027                         *pstatus = ntlmssp_unseal_packet(a->ntlmssp_state,
2028                                                         data, data_len,
2029                                                         full_packet_data,
2030                                                         full_packet_data_len,
2031                                                         &auth_blob);
2032                         if (!NT_STATUS_IS_OK(*pstatus)) {
2033                                 return False;
2034                         }
2035                         break;
2036                 case PIPE_AUTH_LEVEL_INTEGRITY:
2037                         /* Data is signed. */
2038                         *pstatus = ntlmssp_check_packet(a->ntlmssp_state,
2039                                                         data, data_len,
2040                                                         full_packet_data,
2041                                                         full_packet_data_len,
2042                                                         &auth_blob);
2043                         if (!NT_STATUS_IS_OK(*pstatus)) {
2044                                 return False;
2045                         }
2046                         break;
2047                 default:
2048                         *pstatus = NT_STATUS_INVALID_PARAMETER;
2049                         return False;
2050         }
2051
2052         /*
2053          * Return the current pointer to the data offset.
2054          */
2055
2056         if(!prs_set_offset(rpc_in, save_offset)) {
2057                 DEBUG(0,("api_pipe_auth_process: failed to set offset back to %u\n",
2058                         (unsigned int)save_offset ));
2059                 *pstatus = NT_STATUS_INVALID_PARAMETER;
2060                 return False;
2061         }
2062
2063         /*
2064          * Remember the padding length. We must remove it from the real data
2065          * stream once the sign/seal is done.
2066          */
2067
2068         *p_ss_padding_len = auth_info.auth_pad_len;
2069
2070         return True;
2071 }
2072
2073 /****************************************************************************
2074  Deal with schannel processing on an RPC request.
2075 ****************************************************************************/
2076
2077 bool api_pipe_schannel_process(pipes_struct *p, prs_struct *rpc_in, uint32 *p_ss_padding_len)
2078 {
2079         uint32 data_len;
2080         uint32 auth_len;
2081         uint32 save_offset = prs_offset(rpc_in);
2082         RPC_HDR_AUTH auth_info;
2083         RPC_AUTH_SCHANNEL_CHK schannel_chk;
2084
2085         auth_len = p->hdr.auth_len;
2086
2087         if (auth_len != RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN) {
2088                 DEBUG(0,("Incorrect auth_len %u.\n", (unsigned int)auth_len ));
2089                 return False;
2090         }
2091
2092         /*
2093          * The following is that length of the data we must verify or unseal.
2094          * This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
2095          * preceeding the auth_data.
2096          */
2097
2098         if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len) {
2099                 DEBUG(0,("Incorrect frag %u, auth %u.\n",
2100                         (unsigned int)p->hdr.frag_len,
2101                         (unsigned int)auth_len ));
2102                 return False;
2103         }
2104
2105         data_len = p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN -
2106                 RPC_HDR_AUTH_LEN - auth_len;
2107
2108         DEBUG(5,("data %d auth %d\n", data_len, auth_len));
2109
2110         if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2111                 DEBUG(0,("cannot move offset to %u.\n",
2112                          (unsigned int)RPC_HDR_REQ_LEN + data_len ));
2113                 return False;
2114         }
2115
2116         if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2117                 DEBUG(0,("failed to unmarshall RPC_HDR_AUTH.\n"));
2118                 return False;
2119         }
2120
2121         if (auth_info.auth_type != RPC_SCHANNEL_AUTH_TYPE) {
2122                 DEBUG(0,("Invalid auth info %d on schannel\n",
2123                          auth_info.auth_type));
2124                 return False;
2125         }
2126
2127         if(!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN, &schannel_chk, rpc_in, 0)) {
2128                 DEBUG(0,("failed to unmarshal RPC_AUTH_SCHANNEL_CHK.\n"));
2129                 return False;
2130         }
2131
2132         if (!schannel_decode(p->auth.a_u.schannel_auth,
2133                            p->auth.auth_level,
2134                            SENDER_IS_INITIATOR,
2135                            &schannel_chk,
2136                            prs_data_p(rpc_in)+RPC_HDR_REQ_LEN, data_len)) {
2137                 DEBUG(3,("failed to decode PDU\n"));
2138                 return False;
2139         }
2140
2141         /*
2142          * Return the current pointer to the data offset.
2143          */
2144
2145         if(!prs_set_offset(rpc_in, save_offset)) {
2146                 DEBUG(0,("failed to set offset back to %u\n",
2147                          (unsigned int)save_offset ));
2148                 return False;
2149         }
2150
2151         /* The sequence number gets incremented on both send and receive. */
2152         p->auth.a_u.schannel_auth->seq_num++;
2153
2154         /*
2155          * Remember the padding length. We must remove it from the real data
2156          * stream once the sign/seal is done.
2157          */
2158
2159         *p_ss_padding_len = auth_info.auth_pad_len;
2160
2161         return True;
2162 }
2163
2164 /****************************************************************************
2165  Return a user struct for a pipe user.
2166 ****************************************************************************/
2167
2168 struct current_user *get_current_user(struct current_user *user, pipes_struct *p)
2169 {
2170         if (p->pipe_bound &&
2171                         (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP ||
2172                         (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
2173                 memcpy(user, &p->pipe_user, sizeof(struct current_user));
2174         } else {
2175                 memcpy(user, &current_user, sizeof(struct current_user));
2176         }
2177
2178         return user;
2179 }
2180
2181 /****************************************************************************
2182  Find the set of RPC functions associated with this context_id
2183 ****************************************************************************/
2184
2185 static PIPE_RPC_FNS* find_pipe_fns_by_context( PIPE_RPC_FNS *list, uint32 context_id )
2186 {
2187         PIPE_RPC_FNS *fns = NULL;
2188         PIPE_RPC_FNS *tmp = NULL;
2189
2190         if ( !list ) {
2191                 DEBUG(0,("find_pipe_fns_by_context: ERROR!  No context list for pipe!\n"));
2192                 return NULL;
2193         }
2194
2195         for (tmp=list; tmp; tmp=tmp->next ) {
2196                 if ( tmp->context_id == context_id )
2197                         break;
2198         }
2199
2200         fns = tmp;
2201
2202         return fns;
2203 }
2204
2205 /****************************************************************************
2206  Memory cleanup.
2207 ****************************************************************************/
2208
2209 void free_pipe_rpc_context( PIPE_RPC_FNS *list )
2210 {
2211         PIPE_RPC_FNS *tmp = list;
2212         PIPE_RPC_FNS *tmp2;
2213
2214         while (tmp) {
2215                 tmp2 = tmp->next;
2216                 SAFE_FREE(tmp);
2217                 tmp = tmp2;
2218         }
2219
2220         return;
2221 }
2222
2223 /****************************************************************************
2224  Find the correct RPC function to call for this request.
2225  If the pipe is authenticated then become the correct UNIX user
2226  before doing the call.
2227 ****************************************************************************/
2228
2229 bool api_pipe_request(pipes_struct *p)
2230 {
2231         bool ret = False;
2232         bool changed_user = False;
2233         PIPE_RPC_FNS *pipe_fns;
2234
2235         if (p->pipe_bound &&
2236                         ((p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) ||
2237                          (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
2238                 if(!become_authenticated_pipe_user(p)) {
2239                         prs_mem_free(&p->out_data.rdata);
2240                         return False;
2241                 }
2242                 changed_user = True;
2243         }
2244
2245         DEBUG(5, ("Requested \\PIPE\\%s\n", p->name));
2246
2247         /* get the set of RPC functions for this context */
2248
2249         pipe_fns = find_pipe_fns_by_context(p->contexts, p->hdr_req.context_id);
2250
2251         if ( pipe_fns ) {
2252                 TALLOC_CTX *frame = talloc_stackframe();
2253                 ret = api_rpcTNP(p, p->name, pipe_fns->cmds, pipe_fns->n_cmds);
2254                 TALLOC_FREE(frame);
2255         }
2256         else {
2257                 DEBUG(0,("api_pipe_request: No rpc function table associated with context [%d] on pipe [%s]\n",
2258                         p->hdr_req.context_id, p->name));
2259         }
2260
2261         if (changed_user) {
2262                 unbecome_authenticated_pipe_user();
2263         }
2264
2265         return ret;
2266 }
2267
2268 /*******************************************************************
2269  Calls the underlying RPC function for a named pipe.
2270  ********************************************************************/
2271
2272 bool api_rpcTNP(pipes_struct *p, const char *rpc_name,
2273                 const struct api_struct *api_rpc_cmds, int n_cmds)
2274 {
2275         int fn_num;
2276         fstring name;
2277         uint32 offset1, offset2;
2278
2279         /* interpret the command */
2280         DEBUG(4,("api_rpcTNP: %s op 0x%x - ", rpc_name, p->hdr_req.opnum));
2281
2282         slprintf(name, sizeof(name)-1, "in_%s", rpc_name);
2283         prs_dump(name, p->hdr_req.opnum, &p->in_data.data);
2284
2285         for (fn_num = 0; fn_num < n_cmds; fn_num++) {
2286                 if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) {
2287                         DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name));
2288                         break;
2289                 }
2290         }
2291
2292         if (fn_num == n_cmds) {
2293                 /*
2294                  * For an unknown RPC just return a fault PDU but
2295                  * return True to allow RPC's on the pipe to continue
2296                  * and not put the pipe into fault state. JRA.
2297                  */
2298                 DEBUG(4, ("unknown\n"));
2299                 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2300                 return True;
2301         }
2302
2303         offset1 = prs_offset(&p->out_data.rdata);
2304
2305         DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n",
2306                 fn_num, api_rpc_cmds[fn_num].fn));
2307         /* do the actual command */
2308         if(!api_rpc_cmds[fn_num].fn(p)) {
2309                 DEBUG(0,("api_rpcTNP: %s: %s failed.\n", rpc_name, api_rpc_cmds[fn_num].name));
2310                 prs_mem_free(&p->out_data.rdata);
2311                 return False;
2312         }
2313
2314         if (p->bad_handle_fault_state) {
2315                 DEBUG(4,("api_rpcTNP: bad handle fault return.\n"));
2316                 p->bad_handle_fault_state = False;
2317                 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_CONTEXT_MISMATCH));
2318                 return True;
2319         }
2320
2321         if (p->rng_fault_state) {
2322                 DEBUG(4, ("api_rpcTNP: rng fault return\n"));
2323                 p->rng_fault_state = False;
2324                 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2325                 return True;
2326         }
2327
2328         slprintf(name, sizeof(name)-1, "out_%s", rpc_name);
2329         offset2 = prs_offset(&p->out_data.rdata);
2330         prs_set_offset(&p->out_data.rdata, offset1);
2331         prs_dump(name, p->hdr_req.opnum, &p->out_data.rdata);
2332         prs_set_offset(&p->out_data.rdata, offset2);
2333
2334         DEBUG(5,("api_rpcTNP: called %s successfully\n", rpc_name));
2335
2336         /* Check for buffer underflow in rpc parsing */
2337
2338         if ((DEBUGLEVEL >= 10) &&
2339             (prs_offset(&p->in_data.data) != prs_data_size(&p->in_data.data))) {
2340                 size_t data_len = prs_data_size(&p->in_data.data) - prs_offset(&p->in_data.data);
2341                 char *data = (char *)SMB_MALLOC(data_len);
2342
2343                 DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
2344                 if (data) {
2345                         prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data, (uint32)data_len);
2346                         SAFE_FREE(data);
2347                 }
2348
2349         }
2350
2351         return True;
2352 }
2353
2354 /*******************************************************************
2355 *******************************************************************/
2356
2357 void get_pipe_fns( int idx, struct api_struct **fns, int *n_fns )
2358 {
2359         struct api_struct *cmds = NULL;
2360         int               n_cmds = 0;
2361
2362         switch ( idx ) {
2363                 case PI_LSARPC:
2364                         lsa_get_pipe_fns( &cmds, &n_cmds );
2365                         break;
2366                 case PI_DSSETUP:
2367                         dssetup_get_pipe_fns( &cmds, &n_cmds );
2368                         break;
2369                 case PI_SAMR:
2370                         samr_get_pipe_fns( &cmds, &n_cmds );
2371                         break;
2372                 case PI_NETLOGON:
2373                         netlog_get_pipe_fns( &cmds, &n_cmds );
2374                         break;
2375                 case PI_SRVSVC:
2376                         srvsvc2_get_pipe_fns( &cmds, &n_cmds );
2377                         break;
2378                 case PI_WKSSVC:
2379                         wkssvc_get_pipe_fns( &cmds, &n_cmds );
2380                         break;
2381                 case PI_WINREG:
2382                         winreg_get_pipe_fns( &cmds, &n_cmds );
2383                         break;
2384                 case PI_SPOOLSS:
2385                         spoolss_get_pipe_fns( &cmds, &n_cmds );
2386                         break;
2387                 case PI_NETDFS:
2388                         netdfs_get_pipe_fns( &cmds, &n_cmds );
2389                         break;
2390                 case PI_SVCCTL:
2391                         svcctl2_get_pipe_fns( &cmds, &n_cmds );
2392                         break;
2393                 case PI_EVENTLOG:
2394                         eventlog2_get_pipe_fns( &cmds, &n_cmds );
2395                         break;
2396                 case PI_NTSVCS:
2397                         ntsvcs_get_pipe_fns( &cmds, &n_cmds );
2398                         break;
2399 #ifdef DEVELOPER
2400                 case PI_RPCECHO:
2401                         rpcecho_get_pipe_fns( &cmds, &n_cmds );
2402                         break;
2403 #endif
2404                 default:
2405                         DEBUG(0,("get_pipe_fns: Unknown pipe index! [%d]\n", idx));
2406         }
2407
2408         *fns = cmds;
2409         *n_fns = n_cmds;
2410
2411         return;
2412 }