source3/rpc_parse/parse_rpc.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *  Copyright (C) Andrew Tridgell              1992-1997,
   5  *  Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
   6  *  Copyright (C) Paul Ashton                       1997.
   7  *  Copyright (C) Jeremy Allison                    1999.
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 3 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #include "includes.h"
  24
  25 #undef DBGC_CLASS
  26 #define DBGC_CLASS DBGC_RPC_PARSE
  27
  28 /*******************************************************************
  29 interface/version dce/rpc pipe identification
  30 ********************************************************************/
  31
  32 const struct ndr_syntax_id syntax_spoolss = {
  33         {
  34                 0x12345678, 0x1234, 0xabcd,
  35                 { 0xef, 0x00 },
  36                 { 0x01, 0x23,
  37                   0x45, 0x67, 0x89, 0xab }
  38         }, 0x01
  39 };
  40
  41 /*
  42  * IMPORTANT!!  If you update this structure, make sure to
  43  * update the index #defines in smb.h.
  44  */
  45
  46 const struct pipe_id_info pipe_names [] =
  47 {
  48         { PIPE_LSARPC  , &ndr_table_lsarpc.syntax_id, PIPE_LSASS    , &ndr_transfer_syntax },
  49         { PIPE_LSARPC  , &ndr_table_dssetup.syntax_id, PIPE_LSASS    , &ndr_transfer_syntax },
  50         { PIPE_SAMR    , &ndr_table_samr.syntax_id, PIPE_LSASS    , &ndr_transfer_syntax },
  51         { PIPE_NETLOGON, &ndr_table_netlogon.syntax_id, PIPE_LSASS    , &ndr_transfer_syntax },
  52         { PIPE_SRVSVC  , &ndr_table_srvsvc.syntax_id, PIPE_NTSVCS   , &ndr_transfer_syntax },
  53         { PIPE_WKSSVC  , &ndr_table_wkssvc.syntax_id, PIPE_NTSVCS   , &ndr_transfer_syntax },
  54         { PIPE_WINREG  , &ndr_table_winreg.syntax_id, PIPE_WINREG   , &ndr_transfer_syntax },
  55         { PIPE_SPOOLSS , &syntax_spoolss        , PIPE_SPOOLSS  , &ndr_transfer_syntax },
  56         { PIPE_NETDFS  , &ndr_table_netdfs.syntax_id, PIPE_NETDFS   , &ndr_transfer_syntax },
  57         { PIPE_ECHO    , &ndr_table_rpcecho.syntax_id, PIPE_ECHO     , &ndr_transfer_syntax },
  58         { PIPE_SHUTDOWN, &ndr_table_initshutdown.syntax_id, PIPE_SHUTDOWN , &ndr_transfer_syntax },
  59         { PIPE_SVCCTL  , &ndr_table_svcctl.syntax_id, PIPE_NTSVCS   , &ndr_transfer_syntax },
  60         { PIPE_EVENTLOG, &ndr_table_eventlog.syntax_id, PIPE_EVENTLOG , &ndr_transfer_syntax },
  61         { PIPE_NTSVCS  , &ndr_table_ntsvcs.syntax_id, PIPE_NTSVCS   , &ndr_transfer_syntax },
  62         { PIPE_EPMAPPER  , &ndr_table_epmapper.syntax_id, PIPE_EPMAPPER   , &ndr_transfer_syntax },
  63         { NULL         , NULL                  , NULL          , NULL }
  64 };
  65
  66 /****************************************************************************
  67  Return the pipe name from the index.
  68  ****************************************************************************/
  69
  70 const char *cli_get_pipe_name(int pipe_idx)
  71 {
  72         return &pipe_names[pipe_idx].client_pipe[5];
  73 }
  74
  75 /****************************************************************************
  76  Return the pipe idx from the syntax.
  77  ****************************************************************************/
  78 int cli_get_pipe_idx(const RPC_IFACE *syntax)
  79 {
  80         int i;
  81         for (i = 0; pipe_names[i].client_pipe; i++) {
  82                 if (GUID_equal(&pipe_names[i].abstr_syntax->uuid, &syntax->uuid) &&
  83                     pipe_names[i].abstr_syntax->if_version == syntax->if_version)
  84                         return i;
  85         }
  86
  87         return -1;
  88 }
  89
  90 /*******************************************************************
  91  Inits an RPC_HDR structure.
  92 ********************************************************************/
  93
  94 void init_rpc_hdr(RPC_HDR *hdr, enum RPC_PKT_TYPE pkt_type, uint8 flags,
  95                                 uint32 call_id, int data_len, int auth_len)
  96 {
  97         hdr->major        = 5;               /* RPC version 5 */
  98         hdr->minor        = 0;               /* minor version 0 */
  99         hdr->pkt_type     = pkt_type;        /* RPC packet type */
 100         hdr->flags        = flags;           /* dce/rpc flags */
 101         hdr->pack_type[0] = 0x10;            /* little-endian data representation */
 102         hdr->pack_type[1] = 0;               /* packed data representation */
 103         hdr->pack_type[2] = 0;               /* packed data representation */
 104         hdr->pack_type[3] = 0;               /* packed data representation */
 105         hdr->frag_len     = data_len;        /* fragment length, fill in later */
 106         hdr->auth_len     = auth_len;        /* authentication length */
 107         hdr->call_id      = call_id;         /* call identifier - match incoming RPC */
 108 }
 109
 110 /*******************************************************************
 111  Reads or writes an RPC_HDR structure.
 112 ********************************************************************/
 113
 114 bool smb_io_rpc_hdr(const char *desc,  RPC_HDR *rpc, prs_struct *ps, int depth)
 115 {
 116         if (rpc == NULL)
 117                 return False;
 118
 119         prs_debug(ps, depth, desc, "smb_io_rpc_hdr");
 120         depth++;
 121
 122         if(!prs_uint8 ("major     ", ps, depth, &rpc->major))
 123                 return False;
 124
 125         if(!prs_uint8 ("minor     ", ps, depth, &rpc->minor))
 126                 return False;
 127         if(!prs_uint8 ("pkt_type  ", ps, depth, &rpc->pkt_type))
 128                 return False;
 129         if(!prs_uint8 ("flags     ", ps, depth, &rpc->flags))
 130                 return False;
 131
 132         /* We always marshall in little endian format. */
 133         if (MARSHALLING(ps))
 134                 rpc->pack_type[0] = 0x10;
 135
 136         if(!prs_uint8("pack_type0", ps, depth, &rpc->pack_type[0]))
 137                 return False;
 138         if(!prs_uint8("pack_type1", ps, depth, &rpc->pack_type[1]))
 139                 return False;
 140         if(!prs_uint8("pack_type2", ps, depth, &rpc->pack_type[2]))
 141                 return False;
 142         if(!prs_uint8("pack_type3", ps, depth, &rpc->pack_type[3]))
 143                 return False;
 144
 145         /*
 146          * If reading and pack_type[0] == 0 then the data is in big-endian
 147          * format. Set the flag in the prs_struct to specify reverse-endainness.
 148          */
 149
 150         if (UNMARSHALLING(ps) && rpc->pack_type[0] == 0) {
 151                 DEBUG(10,("smb_io_rpc_hdr: PDU data format is big-endian. Setting flag.\n"));
 152                 prs_set_endian_data(ps, RPC_BIG_ENDIAN);
 153         }
 154
 155         if(!prs_uint16("frag_len  ", ps, depth, &rpc->frag_len))
 156                 return False;
 157         if(!prs_uint16("auth_len  ", ps, depth, &rpc->auth_len))
 158                 return False;
 159         if(!prs_uint32("call_id   ", ps, depth, &rpc->call_id))
 160                 return False;
 161         return True;
 162 }
 163
 164 /*******************************************************************
 165  Reads or writes an RPC_IFACE structure.
 166 ********************************************************************/
 167
 168 static bool smb_io_rpc_iface(const char *desc, RPC_IFACE *ifc, prs_struct *ps, int depth)
 169 {
 170         if (ifc == NULL)
 171                 return False;
 172
 173         prs_debug(ps, depth, desc, "smb_io_rpc_iface");
 174         depth++;
 175
 176         if (!prs_align(ps))
 177                 return False;
 178
 179         if (!smb_io_uuid(  "uuid", &ifc->uuid, ps, depth))
 180                 return False;
 181
 182         if(!prs_uint32 ("version", ps, depth, &ifc->if_version))
 183                 return False;
 184
 185         return True;
 186 }
 187
 188 /*******************************************************************
 189  Inits an RPC_ADDR_STR structure.
 190 ********************************************************************/
 191
 192 static void init_rpc_addr_str(RPC_ADDR_STR *str, const char *name)
 193 {
 194         str->len = strlen(name) + 1;
 195         fstrcpy(str->str, name);
 196 }
 197
 198 /*******************************************************************
 199  Reads or writes an RPC_ADDR_STR structure.
 200 ********************************************************************/
 201
 202 static bool smb_io_rpc_addr_str(const char *desc,  RPC_ADDR_STR *str, prs_struct *ps, int depth)
 203 {
 204         if (str == NULL)
 205                 return False;
 206
 207         prs_debug(ps, depth, desc, "smb_io_rpc_addr_str");
 208         depth++;
 209         if(!prs_align(ps))
 210                 return False;
 211
 212         if(!prs_uint16 (      "len", ps, depth, &str->len))
 213                 return False;
 214         if(!prs_uint8s (True, "str", ps, depth, (uchar*)str->str, MIN(str->len, sizeof(str->str)) ))
 215                 return False;
 216         return True;
 217 }
 218
 219 /*******************************************************************
 220  Inits an RPC_HDR_BBA structure.
 221 ********************************************************************/
 222
 223 static void init_rpc_hdr_bba(RPC_HDR_BBA *bba, uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid)
 224 {
 225         bba->max_tsize = max_tsize; /* maximum transmission fragment size (0x1630) */
 226         bba->max_rsize = max_rsize; /* max receive fragment size (0x1630) */
 227         bba->assoc_gid = assoc_gid; /* associated group id (0x0) */
 228 }
 229
 230 /*******************************************************************
 231  Reads or writes an RPC_HDR_BBA structure.
 232 ********************************************************************/
 233
 234 static bool smb_io_rpc_hdr_bba(const char *desc,  RPC_HDR_BBA *rpc, prs_struct *ps, int depth)
 235 {
 236         if (rpc == NULL)
 237                 return False;
 238
 239         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_bba");
 240         depth++;
 241
 242         if(!prs_uint16("max_tsize", ps, depth, &rpc->max_tsize))
 243                 return False;
 244         if(!prs_uint16("max_rsize", ps, depth, &rpc->max_rsize))
 245                 return False;
 246         if(!prs_uint32("assoc_gid", ps, depth, &rpc->assoc_gid))
 247                 return False;
 248         return True;
 249 }
 250
 251 /*******************************************************************
 252  Inits an RPC_CONTEXT structure.
 253  Note the transfer pointer must remain valid until this is marshalled.
 254 ********************************************************************/
 255
 256 void init_rpc_context(RPC_CONTEXT *rpc_ctx, uint16 context_id,
 257                       const RPC_IFACE *abstract, const RPC_IFACE *transfer)
 258 {
 259         rpc_ctx->context_id   = context_id   ; /* presentation context identifier (0x0) */
 260         rpc_ctx->num_transfer_syntaxes = 1 ; /* the number of syntaxes (has always been 1?)(0x1) */
 261
 262         /* num and vers. of interface client is using */
 263         rpc_ctx->abstract = *abstract;
 264
 265         /* vers. of interface to use for replies */
 266         rpc_ctx->transfer = CONST_DISCARD(RPC_IFACE *, transfer);
 267 }
 268
 269 /*******************************************************************
 270  Inits an RPC_HDR_RB structure.
 271  Note the context pointer must remain valid until this is marshalled.
 272 ********************************************************************/
 273
 274 void init_rpc_hdr_rb(RPC_HDR_RB *rpc,
 275                                 uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid,
 276                                 RPC_CONTEXT *context)
 277 {
 278         init_rpc_hdr_bba(&rpc->bba, max_tsize, max_rsize, assoc_gid);
 279
 280         rpc->num_contexts = 1;
 281         rpc->rpc_context = context;
 282 }
 283
 284 /*******************************************************************
 285  Reads or writes an RPC_CONTEXT structure.
 286 ********************************************************************/
 287
 288 bool smb_io_rpc_context(const char *desc, RPC_CONTEXT *rpc_ctx, prs_struct *ps, int depth)
 289 {
 290         int i;
 291
 292         if (rpc_ctx == NULL)
 293                 return False;
 294
 295         if(!prs_align(ps))
 296                 return False;
 297         if(!prs_uint16("context_id  ", ps, depth, &rpc_ctx->context_id ))
 298                 return False;
 299         if(!prs_uint8 ("num_transfer_syntaxes", ps, depth, &rpc_ctx->num_transfer_syntaxes))
 300                 return False;
 301
 302         /* num_transfer_syntaxes must not be zero. */
 303         if (rpc_ctx->num_transfer_syntaxes == 0)
 304                 return False;
 305
 306         if(!smb_io_rpc_iface("", &rpc_ctx->abstract, ps, depth))
 307                 return False;
 308
 309         if (UNMARSHALLING(ps)) {
 310                 if (!(rpc_ctx->transfer = PRS_ALLOC_MEM(ps, RPC_IFACE, rpc_ctx->num_transfer_syntaxes))) {
 311                         return False;
 312                 }
 313         }
 314
 315         for (i = 0; i < rpc_ctx->num_transfer_syntaxes; i++ ) {
 316                 if (!smb_io_rpc_iface("", &rpc_ctx->transfer[i], ps, depth))
 317                         return False;
 318         }
 319         return True;
 320 }
 321
 322 /*******************************************************************
 323  Reads or writes an RPC_HDR_RB structure.
 324 ********************************************************************/
 325
 326 bool smb_io_rpc_hdr_rb(const char *desc, RPC_HDR_RB *rpc, prs_struct *ps, int depth)
 327 {
 328         int i;
 329
 330         if (rpc == NULL)
 331                 return False;
 332
 333         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_rb");
 334         depth++;
 335
 336         if(!smb_io_rpc_hdr_bba("", &rpc->bba, ps, depth))
 337                 return False;
 338
 339         if(!prs_uint8("num_contexts", ps, depth, &rpc->num_contexts))
 340                 return False;
 341
 342         /* 3 pad bytes following - will be mopped up by the prs_align in smb_io_rpc_context(). */
 343
 344         /* num_contexts must not be zero. */
 345         if (rpc->num_contexts == 0)
 346                 return False;
 347
 348         if (UNMARSHALLING(ps)) {
 349                 if (!(rpc->rpc_context = PRS_ALLOC_MEM(ps, RPC_CONTEXT, rpc->num_contexts))) {
 350                         return False;
 351                 }
 352         }
 353
 354         for (i = 0; i < rpc->num_contexts; i++ ) {
 355                 if (!smb_io_rpc_context("", &rpc->rpc_context[i], ps, depth))
 356                         return False;
 357         }
 358
 359         return True;
 360 }
 361
 362 /*******************************************************************
 363  Inits an RPC_RESULTS structure.
 364
 365  lkclXXXX only one reason at the moment!
 366 ********************************************************************/
 367
 368 static void init_rpc_results(RPC_RESULTS *res,
 369                                 uint8 num_results, uint16 result, uint16 reason)
 370 {
 371         res->num_results = num_results; /* the number of results (0x01) */
 372         res->result      = result     ;  /* result (0x00 = accept) */
 373         res->reason      = reason     ;  /* reason (0x00 = no reason specified) */
 374 }
 375
 376 /*******************************************************************
 377  Reads or writes an RPC_RESULTS structure.
 378
 379  lkclXXXX only one reason at the moment!
 380 ********************************************************************/
 381
 382 static bool smb_io_rpc_results(const char *desc, RPC_RESULTS *res, prs_struct *ps, int depth)
 383 {
 384         if (res == NULL)
 385                 return False;
 386
 387         prs_debug(ps, depth, desc, "smb_io_rpc_results");
 388         depth++;
 389
 390         if(!prs_align(ps))
 391                 return False;
 392
 393         if(!prs_uint8 ("num_results", ps, depth, &res->num_results))
 394                 return False;
 395
 396         if(!prs_align(ps))
 397                 return False;
 398
 399         if(!prs_uint16("result     ", ps, depth, &res->result))
 400                 return False;
 401         if(!prs_uint16("reason     ", ps, depth, &res->reason))
 402                 return False;
 403         return True;
 404 }
 405
 406 /*******************************************************************
 407  Init an RPC_HDR_BA structure.
 408
 409  lkclXXXX only one reason at the moment!
 410
 411 ********************************************************************/
 412
 413 void init_rpc_hdr_ba(RPC_HDR_BA *rpc,
 414                                 uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid,
 415                                 const char *pipe_addr,
 416                                 uint8 num_results, uint16 result, uint16 reason,
 417                                 RPC_IFACE *transfer)
 418 {
 419         init_rpc_hdr_bba (&rpc->bba, max_tsize, max_rsize, assoc_gid);
 420         init_rpc_addr_str(&rpc->addr, pipe_addr);
 421         init_rpc_results (&rpc->res, num_results, result, reason);
 422
 423         /* the transfer syntax from the request */
 424         memcpy(&rpc->transfer, transfer, sizeof(rpc->transfer));
 425 }
 426
 427 /*******************************************************************
 428  Reads or writes an RPC_HDR_BA structure.
 429 ********************************************************************/
 430
 431 bool smb_io_rpc_hdr_ba(const char *desc, RPC_HDR_BA *rpc, prs_struct *ps, int depth)
 432 {
 433         if (rpc == NULL)
 434                 return False;
 435
 436         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_ba");
 437         depth++;
 438
 439         if(!smb_io_rpc_hdr_bba("", &rpc->bba, ps, depth))
 440                 return False;
 441         if(!smb_io_rpc_addr_str("", &rpc->addr, ps, depth))
 442                 return False;
 443         if(!smb_io_rpc_results("", &rpc->res, ps, depth))
 444                 return False;
 445         if(!smb_io_rpc_iface("", &rpc->transfer, ps, depth))
 446                 return False;
 447         return True;
 448 }
 449
 450 /*******************************************************************
 451  Init an RPC_HDR_REQ structure.
 452 ********************************************************************/
 453
 454 void init_rpc_hdr_req(RPC_HDR_REQ *hdr, uint32 alloc_hint, uint16 opnum)
 455 {
 456         hdr->alloc_hint   = alloc_hint; /* allocation hint */
 457         hdr->context_id   = 0;         /* presentation context identifier */
 458         hdr->opnum        = opnum;     /* opnum */
 459 }
 460
 461 /*******************************************************************
 462  Reads or writes an RPC_HDR_REQ structure.
 463 ********************************************************************/
 464
 465 bool smb_io_rpc_hdr_req(const char *desc, RPC_HDR_REQ *rpc, prs_struct *ps, int depth)
 466 {
 467         if (rpc == NULL)
 468                 return False;
 469
 470         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_req");
 471         depth++;
 472
 473         if(!prs_uint32("alloc_hint", ps, depth, &rpc->alloc_hint))
 474                 return False;
 475         if(!prs_uint16("context_id", ps, depth, &rpc->context_id))
 476                 return False;
 477         if(!prs_uint16("opnum     ", ps, depth, &rpc->opnum))
 478                 return False;
 479         return True;
 480 }
 481
 482 /*******************************************************************
 483  Reads or writes an RPC_HDR_RESP structure.
 484 ********************************************************************/
 485
 486 bool smb_io_rpc_hdr_resp(const char *desc, RPC_HDR_RESP *rpc, prs_struct *ps, int depth)
 487 {
 488         if (rpc == NULL)
 489                 return False;
 490
 491         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_resp");
 492         depth++;
 493
 494         if(!prs_uint32("alloc_hint", ps, depth, &rpc->alloc_hint))
 495                 return False;
 496         if(!prs_uint16("context_id", ps, depth, &rpc->context_id))
 497                 return False;
 498         if(!prs_uint8 ("cancel_ct ", ps, depth, &rpc->cancel_count))
 499                 return False;
 500         if(!prs_uint8 ("reserved  ", ps, depth, &rpc->reserved))
 501                 return False;
 502         return True;
 503 }
 504
 505 /*******************************************************************
 506  Reads or writes an RPC_HDR_FAULT structure.
 507 ********************************************************************/
 508
 509 bool smb_io_rpc_hdr_fault(const char *desc, RPC_HDR_FAULT *rpc, prs_struct *ps, int depth)
 510 {
 511         if (rpc == NULL)
 512                 return False;
 513
 514         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_fault");
 515         depth++;
 516
 517         if(!prs_dcerpc_status("status  ", ps, depth, &rpc->status))
 518                 return False;
 519         if(!prs_uint32("reserved", ps, depth, &rpc->reserved))
 520                 return False;
 521
 522     return True;
 523 }
 524
 525 /*******************************************************************
 526  Inits an RPC_HDR_AUTH structure.
 527 ********************************************************************/
 528
 529 void init_rpc_hdr_auth(RPC_HDR_AUTH *rai,
 530                                 uint8 auth_type, uint8 auth_level,
 531                                 uint8 auth_pad_len,
 532                                 uint32 auth_context_id)
 533 {
 534         rai->auth_type     = auth_type;
 535         rai->auth_level    = auth_level;
 536         rai->auth_pad_len  = auth_pad_len;
 537         rai->auth_reserved = 0;
 538         rai->auth_context_id = auth_context_id;
 539 }
 540
 541 /*******************************************************************
 542  Reads or writes an RPC_HDR_AUTH structure.
 543 ********************************************************************/
 544
 545 bool smb_io_rpc_hdr_auth(const char *desc, RPC_HDR_AUTH *rai, prs_struct *ps, int depth)
 546 {
 547         if (rai == NULL)
 548                 return False;
 549
 550         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_auth");
 551         depth++;
 552
 553         if(!prs_align(ps))
 554                 return False;
 555
 556         if(!prs_uint8 ("auth_type    ", ps, depth, &rai->auth_type))
 557                 return False;
 558         if(!prs_uint8 ("auth_level   ", ps, depth, &rai->auth_level))
 559                 return False;
 560         if(!prs_uint8 ("auth_pad_len ", ps, depth, &rai->auth_pad_len))
 561                 return False;
 562         if(!prs_uint8 ("auth_reserved", ps, depth, &rai->auth_reserved))
 563                 return False;
 564         if(!prs_uint32("auth_context_id", ps, depth, &rai->auth_context_id))
 565                 return False;
 566
 567         return True;
 568 }
 569
 570 /*******************************************************************
 571  Checks an RPC_AUTH_VERIFIER structure.
 572 ********************************************************************/
 573
 574 bool rpc_auth_verifier_chk(RPC_AUTH_VERIFIER *rav,
 575                                 const char *signature, uint32 msg_type)
 576 {
 577         return (strequal(rav->signature, signature) && rav->msg_type == msg_type);
 578 }
 579
 580 /*******************************************************************
 581  Inits an RPC_AUTH_VERIFIER structure.
 582 ********************************************************************/
 583
 584 void init_rpc_auth_verifier(RPC_AUTH_VERIFIER *rav,
 585                                 const char *signature, uint32 msg_type)
 586 {
 587         fstrcpy(rav->signature, signature); /* "NTLMSSP" */
 588         rav->msg_type = msg_type; /* NTLMSSP_MESSAGE_TYPE */
 589 }
 590
 591 /*******************************************************************
 592  Reads or writes an RPC_AUTH_VERIFIER structure.
 593 ********************************************************************/
 594
 595 bool smb_io_rpc_auth_verifier(const char *desc, RPC_AUTH_VERIFIER *rav, prs_struct *ps, int depth)
 596 {
 597         if (rav == NULL)
 598                 return False;
 599
 600         prs_debug(ps, depth, desc, "smb_io_rpc_auth_verifier");
 601         depth++;
 602
 603         /* "NTLMSSP" */
 604         if(!prs_string("signature", ps, depth, rav->signature,
 605                         sizeof(rav->signature)))
 606                 return False;
 607         if(!prs_uint32("msg_type ", ps, depth, &rav->msg_type)) /* NTLMSSP_MESSAGE_TYPE */
 608                 return False;
 609
 610         return True;
 611 }
 612
 613 /*******************************************************************
 614  This parses an RPC_AUTH_VERIFIER for schannel. I think
 615 ********************************************************************/
 616
 617 bool smb_io_rpc_schannel_verifier(const char *desc, RPC_AUTH_VERIFIER *rav, prs_struct *ps, int depth)
 618 {
 619         if (rav == NULL)
 620                 return False;
 621
 622         prs_debug(ps, depth, desc, "smb_io_rpc_schannel_verifier");
 623         depth++;
 624
 625         if(!prs_string("signature", ps, depth, rav->signature, sizeof(rav->signature)))
 626                 return False;
 627         if(!prs_uint32("msg_type ", ps, depth, &rav->msg_type))
 628                 return False;
 629
 630         return True;
 631 }
 632
 633 /*******************************************************************
 634 creates an RPC_AUTH_SCHANNEL_NEG structure.
 635 ********************************************************************/
 636
 637 void init_rpc_auth_schannel_neg(RPC_AUTH_SCHANNEL_NEG *neg,
 638                               const char *domain, const char *myname)
 639 {
 640         neg->type1 = 0;
 641         neg->type2 = 0x3;
 642         fstrcpy(neg->domain, domain);
 643         fstrcpy(neg->myname, myname);
 644 }
 645
 646 /*******************************************************************
 647  Reads or writes an RPC_AUTH_SCHANNEL_NEG structure.
 648 ********************************************************************/
 649
 650 bool smb_io_rpc_auth_schannel_neg(const char *desc, RPC_AUTH_SCHANNEL_NEG *neg,
 651                                 prs_struct *ps, int depth)
 652 {
 653         if (neg == NULL)
 654                 return False;
 655
 656         prs_debug(ps, depth, desc, "smb_io_rpc_auth_schannel_neg");
 657         depth++;
 658
 659         if(!prs_align(ps))
 660                 return False;
 661
 662         if(!prs_uint32("type1", ps, depth, &neg->type1))
 663                 return False;
 664         if(!prs_uint32("type2", ps, depth, &neg->type2))
 665                 return False;
 666         if(!prs_string("domain  ", ps, depth, neg->domain, sizeof(neg->domain)))
 667                 return False;
 668         if(!prs_string("myname  ", ps, depth, neg->myname, sizeof(neg->myname)))
 669                 return False;
 670
 671         return True;
 672 }
 673
 674 /*******************************************************************
 675 reads or writes an RPC_AUTH_SCHANNEL_CHK structure.
 676 ********************************************************************/
 677
 678 bool smb_io_rpc_auth_schannel_chk(const char *desc, int auth_len,
 679                                 RPC_AUTH_SCHANNEL_CHK * chk,
 680                                 prs_struct *ps, int depth)
 681 {
 682         if (chk == NULL)
 683                 return False;
 684
 685         prs_debug(ps, depth, desc, "smb_io_rpc_auth_schannel_chk");
 686         depth++;
 687
 688         if ( !prs_uint8s(False, "sig  ", ps, depth, chk->sig, sizeof(chk->sig)) )
 689                 return False;
 690
 691         if ( !prs_uint8s(False, "seq_num", ps, depth, chk->seq_num, sizeof(chk->seq_num)) )
 692                 return False;
 693
 694         if ( !prs_uint8s(False, "packet_digest", ps, depth, chk->packet_digest, sizeof(chk->packet_digest)) )
 695                 return False;
 696
 697         if ( auth_len == RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN ) {
 698                 if ( !prs_uint8s(False, "confounder", ps, depth, chk->confounder, sizeof(chk->confounder)) )
 699                         return False;
 700         }
 701
 702         return True;
 703 }