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 #define TRANS_SYNT_V2                       \
  33 {                                           \
  34         {                                   \
  35                 0x8a885d04, 0x1ceb, 0x11c9, \
  36                 { 0x9f, 0xe8 },             \
  37                 { 0x08, 0x00,               \
  38                   0x2b, 0x10, 0x48, 0x60 }  \
  39         }, 0x02                             \
  40 }
  41
  42 #define SYNT_NETLOGON_V2                    \
  43 {                                           \
  44         {                                   \
  45                 0x8a885d04, 0x1ceb, 0x11c9, \
  46                 { 0x9f, 0xe8 },             \
  47                 { 0x08, 0x00,               \
  48                   0x2b, 0x10, 0x48, 0x60 }  \
  49         }, 0x02                             \
  50 }
  51
  52 #define SYNT_WKSSVC_V1                      \
  53 {                                           \
  54         {                                   \
  55                 0x6bffd098, 0xa112, 0x3610, \
  56                 { 0x98, 0x33 },             \
  57                 { 0x46, 0xc3,               \
  58                   0xf8, 0x7e, 0x34, 0x5a }  \
  59         }, 0x01                             \
  60 }
  61
  62 #define SYNT_SRVSVC_V3                      \
  63 {                                           \
  64         {                                   \
  65                 0x4b324fc8, 0x1670, 0x01d3, \
  66                 { 0x12, 0x78 },             \
  67                 { 0x5a, 0x47,               \
  68                   0xbf, 0x6e, 0xe1, 0x88 }  \
  69         }, 0x03                             \
  70 }
  71
  72 #define SYNT_LSARPC_V0                      \
  73 {                                           \
  74         {                                   \
  75                 0x12345778, 0x1234, 0xabcd, \
  76                 { 0xef, 0x00 },             \
  77                 { 0x01, 0x23,               \
  78                   0x45, 0x67, 0x89, 0xab }  \
  79         }, 0x00                             \
  80 }
  81
  82 #define SYNT_LSARPC_V0_DS                \
  83 {                                           \
  84         {                                   \
  85                 0x3919286a, 0xb10c, 0x11d0, \
  86                 { 0x9b, 0xa8 },             \
  87                 { 0x00, 0xc0,               \
  88                   0x4f, 0xd9, 0x2e, 0xf5 }  \
  89         }, 0x00                             \
  90 }
  91
  92 #define SYNT_SAMR_V1                        \
  93 {                                           \
  94         {                                   \
  95                 0x12345778, 0x1234, 0xabcd, \
  96                 { 0xef, 0x00 },             \
  97                 { 0x01, 0x23,               \
  98                   0x45, 0x67, 0x89, 0xac }  \
  99         }, 0x01                             \
 100 }
 101
 102 #define SYNT_NETLOGON_V1                    \
 103 {                                           \
 104         {                                   \
 105                 0x12345678, 0x1234, 0xabcd, \
 106                 { 0xef, 0x00 },             \
 107                 { 0x01, 0x23,               \
 108                   0x45, 0x67, 0xcf, 0xfb }  \
 109         }, 0x01                             \
 110 }
 111
 112 #define SYNT_WINREG_V1                      \
 113 {                                           \
 114         {                                   \
 115                 0x338cd001, 0x2244, 0x31f1, \
 116                 { 0xaa, 0xaa },             \
 117                 { 0x90, 0x00,               \
 118                   0x38, 0x00, 0x10, 0x03 }  \
 119         }, 0x01                             \
 120 }
 121
 122 #define SYNT_SPOOLSS_V1                     \
 123 {                                           \
 124         {                                   \
 125                 0x12345678, 0x1234, 0xabcd, \
 126                 { 0xef, 0x00 },             \
 127                 { 0x01, 0x23,               \
 128                   0x45, 0x67, 0x89, 0xab }  \
 129         }, 0x01                             \
 130 }
 131
 132 #define SYNT_NONE_V0                        \
 133 {                                           \
 134         {                                   \
 135                 0x0, 0x0, 0x0,              \
 136                 { 0x00, 0x00 },             \
 137                 { 0x00, 0x00,               \
 138                   0x00, 0x00, 0x00, 0x00 }  \
 139         }, 0x00                             \
 140 }
 141
 142 #define SYNT_NETDFS_V3                      \
 143 {                                           \
 144         {                                   \
 145                 0x4fc742e0, 0x4a10, 0x11cf, \
 146                 { 0x82, 0x73 },             \
 147                 { 0x00, 0xaa,               \
 148                   0x00, 0x4a, 0xe6, 0x73 }  \
 149         }, 0x03                             \
 150 }
 151
 152 #define SYNT_ECHO_V1                        \
 153 {                                           \
 154         {                                   \
 155                 0x60a15ec5, 0x4de8, 0x11d7, \
 156                 { 0xa6, 0x37 },             \
 157                 { 0x00, 0x50,               \
 158                   0x56, 0xa2, 0x01, 0x82 }  \
 159         }, 0x01                             \
 160 }
 161
 162 #define SYNT_SHUTDOWN_V1                    \
 163 {                                           \
 164         {                                   \
 165                 0x894de0c0, 0x0d55, 0x11d3, \
 166                 { 0xa3, 0x22 },             \
 167                 { 0x00, 0xc0,               \
 168                   0x4f, 0xa3, 0x21, 0xa1 }  \
 169         }, 0x01                             \
 170 }
 171
 172 #define SYNT_SVCCTL_V2                      \
 173 {                                           \
 174         {                                   \
 175                 0x367abb81, 0x9844, 0x35f1, \
 176                 { 0xad, 0x32 },             \
 177                 { 0x98, 0xf0,               \
 178                   0x38, 0x00, 0x10, 0x03 }  \
 179         }, 0x02                             \
 180 }
 181
 182
 183 #define SYNT_EVENTLOG_V0                    \
 184 {                                           \
 185         {                                   \
 186                 0x82273fdc, 0xe32a, 0x18c3, \
 187                 { 0x3f, 0x78 },             \
 188                 { 0x82, 0x79,               \
 189                   0x29, 0xdc, 0x23, 0xea }  \
 190         }, 0x00                             \
 191 }
 192
 193 #define SYNT_NTSVCS_V1                      \
 194 {                                           \
 195         {                                   \
 196                 0x8d9f4e40, 0xa03d, 0x11ce, \
 197                 { 0x8f, 0x69},              \
 198                 { 0x08, 0x00,               \
 199                   0x3e, 0x30, 0x05, 0x1b }  \
 200         }, 0x01                             \
 201 }
 202
 203 /*
 204  * IMPORTANT!!  If you update this structure, make sure to
 205  * update the index #defines in smb.h.
 206  */
 207
 208 const struct pipe_id_info pipe_names [] =
 209 {
 210         /* client pipe , abstract syntax       , server pipe   , transfer syntax */
 211         { PIPE_LSARPC  , SYNT_LSARPC_V0        , PIPE_LSASS    , TRANS_SYNT_V2 },
 212         { PIPE_LSARPC  , SYNT_LSARPC_V0_DS     , PIPE_LSASS    , TRANS_SYNT_V2 },
 213         { PIPE_SAMR    , SYNT_SAMR_V1          , PIPE_LSASS    , TRANS_SYNT_V2 },
 214         { PIPE_NETLOGON, SYNT_NETLOGON_V1      , PIPE_LSASS    , TRANS_SYNT_V2 },
 215         { PIPE_SRVSVC  , SYNT_SRVSVC_V3        , PIPE_NTSVCS   , TRANS_SYNT_V2 },
 216         { PIPE_WKSSVC  , SYNT_WKSSVC_V1        , PIPE_NTSVCS   , TRANS_SYNT_V2 },
 217         { PIPE_WINREG  , SYNT_WINREG_V1        , PIPE_WINREG   , TRANS_SYNT_V2 },
 218         { PIPE_SPOOLSS , SYNT_SPOOLSS_V1       , PIPE_SPOOLSS  , TRANS_SYNT_V2 },
 219         { PIPE_NETDFS  , SYNT_NETDFS_V3        , PIPE_NETDFS   , TRANS_SYNT_V2 },
 220         { PIPE_ECHO    , SYNT_ECHO_V1          , PIPE_ECHO     , TRANS_SYNT_V2 },
 221         { PIPE_SHUTDOWN, SYNT_SHUTDOWN_V1      , PIPE_SHUTDOWN , TRANS_SYNT_V2 },
 222         { PIPE_SVCCTL  , SYNT_SVCCTL_V2        , PIPE_NTSVCS   , TRANS_SYNT_V2 },
 223         { PIPE_EVENTLOG, SYNT_EVENTLOG_V0      , PIPE_EVENTLOG , TRANS_SYNT_V2 },
 224         { PIPE_NTSVCS  , SYNT_NTSVCS_V1        , PIPE_NTSVCS   , TRANS_SYNT_V2 },
 225         { NULL         , SYNT_NONE_V0          , NULL          , SYNT_NONE_V0  }
 226 };
 227
 228 /****************************************************************************
 229  Return the pipe name from the index.
 230  ****************************************************************************/
 231
 232 const char *cli_get_pipe_name(int pipe_idx)
 233 {
 234         return &pipe_names[pipe_idx].client_pipe[5];
 235 }
 236
 237 /*******************************************************************
 238  Inits an RPC_HDR structure.
 239 ********************************************************************/
 240
 241 void init_rpc_hdr(RPC_HDR *hdr, enum RPC_PKT_TYPE pkt_type, uint8 flags,
 242                                 uint32 call_id, int data_len, int auth_len)
 243 {
 244         hdr->major        = 5;               /* RPC version 5 */
 245         hdr->minor        = 0;               /* minor version 0 */
 246         hdr->pkt_type     = pkt_type;        /* RPC packet type */
 247         hdr->flags        = flags;           /* dce/rpc flags */
 248         hdr->pack_type[0] = 0x10;            /* little-endian data representation */
 249         hdr->pack_type[1] = 0;               /* packed data representation */
 250         hdr->pack_type[2] = 0;               /* packed data representation */
 251         hdr->pack_type[3] = 0;               /* packed data representation */
 252         hdr->frag_len     = data_len;        /* fragment length, fill in later */
 253         hdr->auth_len     = auth_len;        /* authentication length */
 254         hdr->call_id      = call_id;         /* call identifier - match incoming RPC */
 255 }
 256
 257 /*******************************************************************
 258  Reads or writes an RPC_HDR structure.
 259 ********************************************************************/
 260
 261 bool smb_io_rpc_hdr(const char *desc,  RPC_HDR *rpc, prs_struct *ps, int depth)
 262 {
 263         if (rpc == NULL)
 264                 return False;
 265
 266         prs_debug(ps, depth, desc, "smb_io_rpc_hdr");
 267         depth++;
 268
 269         if(!prs_uint8 ("major     ", ps, depth, &rpc->major))
 270                 return False;
 271
 272         if(!prs_uint8 ("minor     ", ps, depth, &rpc->minor))
 273                 return False;
 274         if(!prs_uint8 ("pkt_type  ", ps, depth, &rpc->pkt_type))
 275                 return False;
 276         if(!prs_uint8 ("flags     ", ps, depth, &rpc->flags))
 277                 return False;
 278
 279         /* We always marshall in little endian format. */
 280         if (MARSHALLING(ps))
 281                 rpc->pack_type[0] = 0x10;
 282
 283         if(!prs_uint8("pack_type0", ps, depth, &rpc->pack_type[0]))
 284                 return False;
 285         if(!prs_uint8("pack_type1", ps, depth, &rpc->pack_type[1]))
 286                 return False;
 287         if(!prs_uint8("pack_type2", ps, depth, &rpc->pack_type[2]))
 288                 return False;
 289         if(!prs_uint8("pack_type3", ps, depth, &rpc->pack_type[3]))
 290                 return False;
 291
 292         /*
 293          * If reading and pack_type[0] == 0 then the data is in big-endian
 294          * format. Set the flag in the prs_struct to specify reverse-endainness.
 295          */
 296
 297         if (UNMARSHALLING(ps) && rpc->pack_type[0] == 0) {
 298                 DEBUG(10,("smb_io_rpc_hdr: PDU data format is big-endian. Setting flag.\n"));
 299                 prs_set_endian_data(ps, RPC_BIG_ENDIAN);
 300         }
 301
 302         if(!prs_uint16("frag_len  ", ps, depth, &rpc->frag_len))
 303                 return False;
 304         if(!prs_uint16("auth_len  ", ps, depth, &rpc->auth_len))
 305                 return False;
 306         if(!prs_uint32("call_id   ", ps, depth, &rpc->call_id))
 307                 return False;
 308         return True;
 309 }
 310
 311 /*******************************************************************
 312  Reads or writes an RPC_IFACE structure.
 313 ********************************************************************/
 314
 315 static bool smb_io_rpc_iface(const char *desc, RPC_IFACE *ifc, prs_struct *ps, int depth)
 316 {
 317         if (ifc == NULL)
 318                 return False;
 319
 320         prs_debug(ps, depth, desc, "smb_io_rpc_iface");
 321         depth++;
 322
 323         if (!prs_align(ps))
 324                 return False;
 325
 326         if (!smb_io_uuid(  "uuid", &ifc->uuid, ps, depth))
 327                 return False;
 328
 329         if(!prs_uint32 ("version", ps, depth, &ifc->version))
 330                 return False;
 331
 332         return True;
 333 }
 334
 335 /*******************************************************************
 336  Inits an RPC_ADDR_STR structure.
 337 ********************************************************************/
 338
 339 static void init_rpc_addr_str(RPC_ADDR_STR *str, const char *name)
 340 {
 341         str->len = strlen(name) + 1;
 342         fstrcpy(str->str, name);
 343 }
 344
 345 /*******************************************************************
 346  Reads or writes an RPC_ADDR_STR structure.
 347 ********************************************************************/
 348
 349 static bool smb_io_rpc_addr_str(const char *desc,  RPC_ADDR_STR *str, prs_struct *ps, int depth)
 350 {
 351         if (str == NULL)
 352                 return False;
 353
 354         prs_debug(ps, depth, desc, "smb_io_rpc_addr_str");
 355         depth++;
 356         if(!prs_align(ps))
 357                 return False;
 358
 359         if(!prs_uint16 (      "len", ps, depth, &str->len))
 360                 return False;
 361         if(!prs_uint8s (True, "str", ps, depth, (uchar*)str->str, MIN(str->len, sizeof(str->str)) ))
 362                 return False;
 363         return True;
 364 }
 365
 366 /*******************************************************************
 367  Inits an RPC_HDR_BBA structure.
 368 ********************************************************************/
 369
 370 static void init_rpc_hdr_bba(RPC_HDR_BBA *bba, uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid)
 371 {
 372         bba->max_tsize = max_tsize; /* maximum transmission fragment size (0x1630) */
 373         bba->max_rsize = max_rsize; /* max receive fragment size (0x1630) */
 374         bba->assoc_gid = assoc_gid; /* associated group id (0x0) */
 375 }
 376
 377 /*******************************************************************
 378  Reads or writes an RPC_HDR_BBA structure.
 379 ********************************************************************/
 380
 381 static bool smb_io_rpc_hdr_bba(const char *desc,  RPC_HDR_BBA *rpc, prs_struct *ps, int depth)
 382 {
 383         if (rpc == NULL)
 384                 return False;
 385
 386         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_bba");
 387         depth++;
 388
 389         if(!prs_uint16("max_tsize", ps, depth, &rpc->max_tsize))
 390                 return False;
 391         if(!prs_uint16("max_rsize", ps, depth, &rpc->max_rsize))
 392                 return False;
 393         if(!prs_uint32("assoc_gid", ps, depth, &rpc->assoc_gid))
 394                 return False;
 395         return True;
 396 }
 397
 398 /*******************************************************************
 399  Inits an RPC_CONTEXT structure.
 400  Note the transfer pointer must remain valid until this is marshalled.
 401 ********************************************************************/
 402
 403 void init_rpc_context(RPC_CONTEXT *rpc_ctx, uint16 context_id, RPC_IFACE *abstract, RPC_IFACE *transfer)
 404 {
 405         rpc_ctx->context_id   = context_id   ; /* presentation context identifier (0x0) */
 406         rpc_ctx->num_transfer_syntaxes = 1 ; /* the number of syntaxes (has always been 1?)(0x1) */
 407
 408         /* num and vers. of interface client is using */
 409         rpc_ctx->abstract = *abstract;
 410
 411         /* vers. of interface to use for replies */
 412         rpc_ctx->transfer = transfer;
 413 }
 414
 415 /*******************************************************************
 416  Inits an RPC_HDR_RB structure.
 417  Note the context pointer must remain valid until this is marshalled.
 418 ********************************************************************/
 419
 420 void init_rpc_hdr_rb(RPC_HDR_RB *rpc,
 421                                 uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid,
 422                                 RPC_CONTEXT *context)
 423 {
 424         init_rpc_hdr_bba(&rpc->bba, max_tsize, max_rsize, assoc_gid);
 425
 426         rpc->num_contexts = 1;
 427         rpc->rpc_context = context;
 428 }
 429
 430 /*******************************************************************
 431  Reads or writes an RPC_CONTEXT structure.
 432 ********************************************************************/
 433
 434 bool smb_io_rpc_context(const char *desc, RPC_CONTEXT *rpc_ctx, prs_struct *ps, int depth)
 435 {
 436         int i;
 437
 438         if (rpc_ctx == NULL)
 439                 return False;
 440
 441         if(!prs_align(ps))
 442                 return False;
 443         if(!prs_uint16("context_id  ", ps, depth, &rpc_ctx->context_id ))
 444                 return False;
 445         if(!prs_uint8 ("num_transfer_syntaxes", ps, depth, &rpc_ctx->num_transfer_syntaxes))
 446                 return False;
 447
 448         /* num_transfer_syntaxes must not be zero. */
 449         if (rpc_ctx->num_transfer_syntaxes == 0)
 450                 return False;
 451
 452         if(!smb_io_rpc_iface("", &rpc_ctx->abstract, ps, depth))
 453                 return False;
 454
 455         if (UNMARSHALLING(ps)) {
 456                 if (!(rpc_ctx->transfer = PRS_ALLOC_MEM(ps, RPC_IFACE, rpc_ctx->num_transfer_syntaxes))) {
 457                         return False;
 458                 }
 459         }
 460
 461         for (i = 0; i < rpc_ctx->num_transfer_syntaxes; i++ ) {
 462                 if (!smb_io_rpc_iface("", &rpc_ctx->transfer[i], ps, depth))
 463                         return False;
 464         }
 465         return True;
 466 }
 467
 468 /*******************************************************************
 469  Reads or writes an RPC_HDR_RB structure.
 470 ********************************************************************/
 471
 472 bool smb_io_rpc_hdr_rb(const char *desc, RPC_HDR_RB *rpc, prs_struct *ps, int depth)
 473 {
 474         int i;
 475
 476         if (rpc == NULL)
 477                 return False;
 478
 479         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_rb");
 480         depth++;
 481
 482         if(!smb_io_rpc_hdr_bba("", &rpc->bba, ps, depth))
 483                 return False;
 484
 485         if(!prs_uint8("num_contexts", ps, depth, &rpc->num_contexts))
 486                 return False;
 487
 488         /* 3 pad bytes following - will be mopped up by the prs_align in smb_io_rpc_context(). */
 489
 490         /* num_contexts must not be zero. */
 491         if (rpc->num_contexts == 0)
 492                 return False;
 493
 494         if (UNMARSHALLING(ps)) {
 495                 if (!(rpc->rpc_context = PRS_ALLOC_MEM(ps, RPC_CONTEXT, rpc->num_contexts))) {
 496                         return False;
 497                 }
 498         }
 499
 500         for (i = 0; i < rpc->num_contexts; i++ ) {
 501                 if (!smb_io_rpc_context("", &rpc->rpc_context[i], ps, depth))
 502                         return False;
 503         }
 504
 505         return True;
 506 }
 507
 508 /*******************************************************************
 509  Inits an RPC_RESULTS structure.
 510
 511  lkclXXXX only one reason at the moment!
 512 ********************************************************************/
 513
 514 static void init_rpc_results(RPC_RESULTS *res,
 515                                 uint8 num_results, uint16 result, uint16 reason)
 516 {
 517         res->num_results = num_results; /* the number of results (0x01) */
 518         res->result      = result     ;  /* result (0x00 = accept) */
 519         res->reason      = reason     ;  /* reason (0x00 = no reason specified) */
 520 }
 521
 522 /*******************************************************************
 523  Reads or writes an RPC_RESULTS structure.
 524
 525  lkclXXXX only one reason at the moment!
 526 ********************************************************************/
 527
 528 static bool smb_io_rpc_results(const char *desc, RPC_RESULTS *res, prs_struct *ps, int depth)
 529 {
 530         if (res == NULL)
 531                 return False;
 532
 533         prs_debug(ps, depth, desc, "smb_io_rpc_results");
 534         depth++;
 535
 536         if(!prs_align(ps))
 537                 return False;
 538
 539         if(!prs_uint8 ("num_results", ps, depth, &res->num_results))
 540                 return False;
 541
 542         if(!prs_align(ps))
 543                 return False;
 544
 545         if(!prs_uint16("result     ", ps, depth, &res->result))
 546                 return False;
 547         if(!prs_uint16("reason     ", ps, depth, &res->reason))
 548                 return False;
 549         return True;
 550 }
 551
 552 /*******************************************************************
 553  Init an RPC_HDR_BA structure.
 554
 555  lkclXXXX only one reason at the moment!
 556
 557 ********************************************************************/
 558
 559 void init_rpc_hdr_ba(RPC_HDR_BA *rpc,
 560                                 uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid,
 561                                 const char *pipe_addr,
 562                                 uint8 num_results, uint16 result, uint16 reason,
 563                                 RPC_IFACE *transfer)
 564 {
 565         init_rpc_hdr_bba (&rpc->bba, max_tsize, max_rsize, assoc_gid);
 566         init_rpc_addr_str(&rpc->addr, pipe_addr);
 567         init_rpc_results (&rpc->res, num_results, result, reason);
 568
 569         /* the transfer syntax from the request */
 570         memcpy(&rpc->transfer, transfer, sizeof(rpc->transfer));
 571 }
 572
 573 /*******************************************************************
 574  Reads or writes an RPC_HDR_BA structure.
 575 ********************************************************************/
 576
 577 bool smb_io_rpc_hdr_ba(const char *desc, RPC_HDR_BA *rpc, prs_struct *ps, int depth)
 578 {
 579         if (rpc == NULL)
 580                 return False;
 581
 582         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_ba");
 583         depth++;
 584
 585         if(!smb_io_rpc_hdr_bba("", &rpc->bba, ps, depth))
 586                 return False;
 587         if(!smb_io_rpc_addr_str("", &rpc->addr, ps, depth))
 588                 return False;
 589         if(!smb_io_rpc_results("", &rpc->res, ps, depth))
 590                 return False;
 591         if(!smb_io_rpc_iface("", &rpc->transfer, ps, depth))
 592                 return False;
 593         return True;
 594 }
 595
 596 /*******************************************************************
 597  Init an RPC_HDR_REQ structure.
 598 ********************************************************************/
 599
 600 void init_rpc_hdr_req(RPC_HDR_REQ *hdr, uint32 alloc_hint, uint16 opnum)
 601 {
 602         hdr->alloc_hint   = alloc_hint; /* allocation hint */
 603         hdr->context_id   = 0;         /* presentation context identifier */
 604         hdr->opnum        = opnum;     /* opnum */
 605 }
 606
 607 /*******************************************************************
 608  Reads or writes an RPC_HDR_REQ structure.
 609 ********************************************************************/
 610
 611 bool smb_io_rpc_hdr_req(const char *desc, RPC_HDR_REQ *rpc, prs_struct *ps, int depth)
 612 {
 613         if (rpc == NULL)
 614                 return False;
 615
 616         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_req");
 617         depth++;
 618
 619         if(!prs_uint32("alloc_hint", ps, depth, &rpc->alloc_hint))
 620                 return False;
 621         if(!prs_uint16("context_id", ps, depth, &rpc->context_id))
 622                 return False;
 623         if(!prs_uint16("opnum     ", ps, depth, &rpc->opnum))
 624                 return False;
 625         return True;
 626 }
 627
 628 /*******************************************************************
 629  Reads or writes an RPC_HDR_RESP structure.
 630 ********************************************************************/
 631
 632 bool smb_io_rpc_hdr_resp(const char *desc, RPC_HDR_RESP *rpc, prs_struct *ps, int depth)
 633 {
 634         if (rpc == NULL)
 635                 return False;
 636
 637         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_resp");
 638         depth++;
 639
 640         if(!prs_uint32("alloc_hint", ps, depth, &rpc->alloc_hint))
 641                 return False;
 642         if(!prs_uint16("context_id", ps, depth, &rpc->context_id))
 643                 return False;
 644         if(!prs_uint8 ("cancel_ct ", ps, depth, &rpc->cancel_count))
 645                 return False;
 646         if(!prs_uint8 ("reserved  ", ps, depth, &rpc->reserved))
 647                 return False;
 648         return True;
 649 }
 650
 651 /*******************************************************************
 652  Reads or writes an RPC_HDR_FAULT structure.
 653 ********************************************************************/
 654
 655 bool smb_io_rpc_hdr_fault(const char *desc, RPC_HDR_FAULT *rpc, prs_struct *ps, int depth)
 656 {
 657         if (rpc == NULL)
 658                 return False;
 659
 660         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_fault");
 661         depth++;
 662
 663         if(!prs_dcerpc_status("status  ", ps, depth, &rpc->status))
 664                 return False;
 665         if(!prs_uint32("reserved", ps, depth, &rpc->reserved))
 666                 return False;
 667
 668     return True;
 669 }
 670
 671 /*******************************************************************
 672  Inits an RPC_HDR_AUTH structure.
 673 ********************************************************************/
 674
 675 void init_rpc_hdr_auth(RPC_HDR_AUTH *rai,
 676                                 uint8 auth_type, uint8 auth_level,
 677                                 uint8 auth_pad_len,
 678                                 uint32 auth_context_id)
 679 {
 680         rai->auth_type     = auth_type;
 681         rai->auth_level    = auth_level;
 682         rai->auth_pad_len  = auth_pad_len;
 683         rai->auth_reserved = 0;
 684         rai->auth_context_id = auth_context_id;
 685 }
 686
 687 /*******************************************************************
 688  Reads or writes an RPC_HDR_AUTH structure.
 689 ********************************************************************/
 690
 691 bool smb_io_rpc_hdr_auth(const char *desc, RPC_HDR_AUTH *rai, prs_struct *ps, int depth)
 692 {
 693         if (rai == NULL)
 694                 return False;
 695
 696         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_auth");
 697         depth++;
 698
 699         if(!prs_align(ps))
 700                 return False;
 701
 702         if(!prs_uint8 ("auth_type    ", ps, depth, &rai->auth_type))
 703                 return False;
 704         if(!prs_uint8 ("auth_level   ", ps, depth, &rai->auth_level))
 705                 return False;
 706         if(!prs_uint8 ("auth_pad_len ", ps, depth, &rai->auth_pad_len))
 707                 return False;
 708         if(!prs_uint8 ("auth_reserved", ps, depth, &rai->auth_reserved))
 709                 return False;
 710         if(!prs_uint32("auth_context_id", ps, depth, &rai->auth_context_id))
 711                 return False;
 712
 713         return True;
 714 }
 715
 716 /*******************************************************************
 717  Checks an RPC_AUTH_VERIFIER structure.
 718 ********************************************************************/
 719
 720 bool rpc_auth_verifier_chk(RPC_AUTH_VERIFIER *rav,
 721                                 const char *signature, uint32 msg_type)
 722 {
 723         return (strequal(rav->signature, signature) && rav->msg_type == msg_type);
 724 }
 725
 726 /*******************************************************************
 727  Inits an RPC_AUTH_VERIFIER structure.
 728 ********************************************************************/
 729
 730 void init_rpc_auth_verifier(RPC_AUTH_VERIFIER *rav,
 731                                 const char *signature, uint32 msg_type)
 732 {
 733         fstrcpy(rav->signature, signature); /* "NTLMSSP" */
 734         rav->msg_type = msg_type; /* NTLMSSP_MESSAGE_TYPE */
 735 }
 736
 737 /*******************************************************************
 738  Reads or writes an RPC_AUTH_VERIFIER structure.
 739 ********************************************************************/
 740
 741 bool smb_io_rpc_auth_verifier(const char *desc, RPC_AUTH_VERIFIER *rav, prs_struct *ps, int depth)
 742 {
 743         if (rav == NULL)
 744                 return False;
 745
 746         prs_debug(ps, depth, desc, "smb_io_rpc_auth_verifier");
 747         depth++;
 748
 749         /* "NTLMSSP" */
 750         if(!prs_string("signature", ps, depth, rav->signature,
 751                         sizeof(rav->signature)))
 752                 return False;
 753         if(!prs_uint32("msg_type ", ps, depth, &rav->msg_type)) /* NTLMSSP_MESSAGE_TYPE */
 754                 return False;
 755
 756         return True;
 757 }
 758
 759 /*******************************************************************
 760  This parses an RPC_AUTH_VERIFIER for schannel. I think
 761 ********************************************************************/
 762
 763 bool smb_io_rpc_schannel_verifier(const char *desc, RPC_AUTH_VERIFIER *rav, prs_struct *ps, int depth)
 764 {
 765         if (rav == NULL)
 766                 return False;
 767
 768         prs_debug(ps, depth, desc, "smb_io_rpc_schannel_verifier");
 769         depth++;
 770
 771         if(!prs_string("signature", ps, depth, rav->signature, sizeof(rav->signature)))
 772                 return False;
 773         if(!prs_uint32("msg_type ", ps, depth, &rav->msg_type))
 774                 return False;
 775
 776         return True;
 777 }
 778
 779 /*******************************************************************
 780 creates an RPC_AUTH_SCHANNEL_NEG structure.
 781 ********************************************************************/
 782
 783 void init_rpc_auth_schannel_neg(RPC_AUTH_SCHANNEL_NEG *neg,
 784                               const char *domain, const char *myname)
 785 {
 786         neg->type1 = 0;
 787         neg->type2 = 0x3;
 788         fstrcpy(neg->domain, domain);
 789         fstrcpy(neg->myname, myname);
 790 }
 791
 792 /*******************************************************************
 793  Reads or writes an RPC_AUTH_SCHANNEL_NEG structure.
 794 ********************************************************************/
 795
 796 bool smb_io_rpc_auth_schannel_neg(const char *desc, RPC_AUTH_SCHANNEL_NEG *neg,
 797                                 prs_struct *ps, int depth)
 798 {
 799         if (neg == NULL)
 800                 return False;
 801
 802         prs_debug(ps, depth, desc, "smb_io_rpc_auth_schannel_neg");
 803         depth++;
 804
 805         if(!prs_align(ps))
 806                 return False;
 807
 808         if(!prs_uint32("type1", ps, depth, &neg->type1))
 809                 return False;
 810         if(!prs_uint32("type2", ps, depth, &neg->type2))
 811                 return False;
 812         if(!prs_string("domain  ", ps, depth, neg->domain, sizeof(neg->domain)))
 813                 return False;
 814         if(!prs_string("myname  ", ps, depth, neg->myname, sizeof(neg->myname)))
 815                 return False;
 816
 817         return True;
 818 }
 819
 820 /*******************************************************************
 821 reads or writes an RPC_AUTH_SCHANNEL_CHK structure.
 822 ********************************************************************/
 823
 824 bool smb_io_rpc_auth_schannel_chk(const char *desc, int auth_len,
 825                                 RPC_AUTH_SCHANNEL_CHK * chk,
 826                                 prs_struct *ps, int depth)
 827 {
 828         if (chk == NULL)
 829                 return False;
 830
 831         prs_debug(ps, depth, desc, "smb_io_rpc_auth_schannel_chk");
 832         depth++;
 833
 834         if ( !prs_uint8s(False, "sig  ", ps, depth, chk->sig, sizeof(chk->sig)) )
 835                 return False;
 836
 837         if ( !prs_uint8s(False, "seq_num", ps, depth, chk->seq_num, sizeof(chk->seq_num)) )
 838                 return False;
 839
 840         if ( !prs_uint8s(False, "packet_digest", ps, depth, chk->packet_digest, sizeof(chk->packet_digest)) )
 841                 return False;
 842
 843         if ( auth_len == RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN ) {
 844                 if ( !prs_uint8s(False, "confounder", ps, depth, chk->confounder, sizeof(chk->confounder)) )
 845                         return False;
 846         }
 847
 848         return True;
 849 }