source/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 2 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, write to the Free Software
  21  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 #include "includes.h"
  25
  26 #undef DBGC_CLASS
  27 #define DBGC_CLASS DBGC_RPC_PARSE
  28
  29 /*******************************************************************
  30 interface/version dce/rpc pipe identification
  31 ********************************************************************/
  32
  33 #define TRANS_SYNT_V2                       \
  34 {                                           \
  35         {                                   \
  36                 0x8a885d04, 0x1ceb, 0x11c9, \
  37                 { 0x9f, 0xe8 },             \
  38                 { 0x08, 0x00,               \
  39                   0x2b, 0x10, 0x48, 0x60 }  \
  40         }, 0x02                             \
  41 }
  42
  43 #define SYNT_NETLOGON_V2                    \
  44 {                                           \
  45         {                                   \
  46                 0x8a885d04, 0x1ceb, 0x11c9, \
  47                 { 0x9f, 0xe8 },             \
  48                 { 0x08, 0x00,               \
  49                   0x2b, 0x10, 0x48, 0x60 }  \
  50         }, 0x02                             \
  51 }
  52
  53 #define SYNT_WKSSVC_V1                      \
  54 {                                           \
  55         {                                   \
  56                 0x6bffd098, 0xa112, 0x3610, \
  57                 { 0x98, 0x33 },             \
  58                 { 0x46, 0xc3,               \
  59                   0xf8, 0x7e, 0x34, 0x5a }  \
  60         }, 0x01                             \
  61 }
  62
  63 #define SYNT_SRVSVC_V3                      \
  64 {                                           \
  65         {                                   \
  66                 0x4b324fc8, 0x1670, 0x01d3, \
  67                 { 0x12, 0x78 },             \
  68                 { 0x5a, 0x47,               \
  69                   0xbf, 0x6e, 0xe1, 0x88 }  \
  70         }, 0x03                             \
  71 }
  72
  73 #define SYNT_LSARPC_V0                      \
  74 {                                           \
  75         {                                   \
  76                 0x12345778, 0x1234, 0xabcd, \
  77                 { 0xef, 0x00 },             \
  78                 { 0x01, 0x23,               \
  79                   0x45, 0x67, 0x89, 0xab }  \
  80         }, 0x00                             \
  81 }
  82
  83 #define SYNT_LSARPC_V0_DS                \
  84 {                                           \
  85         {                                   \
  86                 0x3919286a, 0xb10c, 0x11d0, \
  87                 { 0x9b, 0xa8 },             \
  88                 { 0x00, 0xc0,               \
  89                   0x4f, 0xd9, 0x2e, 0xf5 }  \
  90         }, 0x00                             \
  91 }
  92
  93 #define SYNT_SAMR_V1                        \
  94 {                                           \
  95         {                                   \
  96                 0x12345778, 0x1234, 0xabcd, \
  97                 { 0xef, 0x00 },             \
  98                 { 0x01, 0x23,               \
  99                   0x45, 0x67, 0x89, 0xac }  \
 100         }, 0x01                             \
 101 }
 102
 103 #define SYNT_NETLOGON_V1                    \
 104 {                                           \
 105         {                                   \
 106                 0x12345678, 0x1234, 0xabcd, \
 107                 { 0xef, 0x00 },             \
 108                 { 0x01, 0x23,               \
 109                   0x45, 0x67, 0xcf, 0xfb }  \
 110         }, 0x01                             \
 111 }
 112
 113 #define SYNT_WINREG_V1                      \
 114 {                                           \
 115         {                                   \
 116                 0x338cd001, 0x2244, 0x31f1, \
 117                 { 0xaa, 0xaa },             \
 118                 { 0x90, 0x00,               \
 119                   0x38, 0x00, 0x10, 0x03 }  \
 120         }, 0x01                             \
 121 }
 122
 123 #define SYNT_SPOOLSS_V1                     \
 124 {                                           \
 125         {                                   \
 126                 0x12345678, 0x1234, 0xabcd, \
 127                 { 0xef, 0x00 },             \
 128                 { 0x01, 0x23,               \
 129                   0x45, 0x67, 0x89, 0xab }  \
 130         }, 0x01                             \
 131 }
 132
 133 #define SYNT_NONE_V0                        \
 134 {                                           \
 135         {                                   \
 136                 0x0, 0x0, 0x0,              \
 137                 { 0x00, 0x00 },             \
 138                 { 0x00, 0x00,               \
 139                   0x00, 0x00, 0x00, 0x00 }  \
 140         }, 0x00                             \
 141 }
 142
 143 #define SYNT_NETDFS_V3                      \
 144 {                                           \
 145         {                                   \
 146                 0x4fc742e0, 0x4a10, 0x11cf, \
 147                 { 0x82, 0x73 },             \
 148                 { 0x00, 0xaa,               \
 149                   0x00, 0x4a, 0xe6, 0x73 }  \
 150         }, 0x03                             \
 151 }
 152
 153 #define SYNT_ECHO_V1                        \
 154 {                                           \
 155         {                                   \
 156                 0x60a15ec5, 0x4de8, 0x11d7, \
 157                 { 0xa6, 0x37 },             \
 158                 { 0x00, 0x50,               \
 159                   0x56, 0xa2, 0x01, 0x82 }  \
 160         }, 0x01                             \
 161 }
 162
 163 #define SYNT_SHUTDOWN_V1                    \
 164 {                                           \
 165         {                                   \
 166                 0x894de0c0, 0x0d55, 0x11d3, \
 167                 { 0xa3, 0x22 },             \
 168                 { 0x00, 0xc0,               \
 169                   0x4f, 0xa3, 0x21, 0xa1 }  \
 170         }, 0x01                             \
 171 }
 172
 173 #define SYNT_SVCCTL_V2                      \
 174 {                                           \
 175         {                                   \
 176                 0x367abb81, 0x9844, 0x35f1, \
 177                 { 0xad, 0x32 },             \
 178                 { 0x98, 0xf0,               \
 179                   0x38, 0x00, 0x10, 0x03 }  \
 180         }, 0x02                             \
 181 }
 182
 183
 184 #define SYNT_EVENTLOG_V0                    \
 185 {                                           \
 186         {                                   \
 187                 0x82273fdc, 0xe32a, 0x18c3, \
 188                 { 0x3f, 0x78 },             \
 189                 { 0x82, 0x79,               \
 190                   0x29, 0xdc, 0x23, 0xea }  \
 191         }, 0x00                             \
 192 }
 193
 194 #define SYNT_NTSVCS_V1                      \
 195 {                                           \
 196         {                                   \
 197                 0x8d9f4e40, 0xa03d, 0x11ce, \
 198                 { 0x8f, 0x69},              \
 199                 { 0x08, 0x00,               \
 200                   0x3e, 0x30, 0x05, 0x1b }  \
 201         }, 0x01                             \
 202 }
 203
 204 /*
 205  * IMPORTANT!!  If you update this structure, make sure to
 206  * update the index #defines in smb.h.
 207  */
 208
 209 const struct pipe_id_info pipe_names [] =
 210 {
 211         /* client pipe , abstract syntax       , server pipe   , transfer syntax */
 212         { PIPE_LSARPC  , SYNT_LSARPC_V0        , PIPE_LSASS    , TRANS_SYNT_V2 },
 213         { PIPE_LSARPC  , SYNT_LSARPC_V0_DS     , PIPE_LSASS    , TRANS_SYNT_V2 },
 214         { PIPE_SAMR    , SYNT_SAMR_V1          , PIPE_LSASS    , TRANS_SYNT_V2 },
 215         { PIPE_NETLOGON, SYNT_NETLOGON_V1      , PIPE_LSASS    , TRANS_SYNT_V2 },
 216         { PIPE_SRVSVC  , SYNT_SRVSVC_V3        , PIPE_NTSVCS   , TRANS_SYNT_V2 },
 217         { PIPE_WKSSVC  , SYNT_WKSSVC_V1        , PIPE_NTSVCS   , TRANS_SYNT_V2 },
 218         { PIPE_WINREG  , SYNT_WINREG_V1        , PIPE_WINREG   , TRANS_SYNT_V2 },
 219         { PIPE_SPOOLSS , SYNT_SPOOLSS_V1       , PIPE_SPOOLSS  , TRANS_SYNT_V2 },
 220         { PIPE_NETDFS  , SYNT_NETDFS_V3        , PIPE_NETDFS   , TRANS_SYNT_V2 },
 221         { PIPE_ECHO    , SYNT_ECHO_V1          , PIPE_ECHO     , TRANS_SYNT_V2 },
 222         { PIPE_SHUTDOWN, SYNT_SHUTDOWN_V1      , PIPE_SHUTDOWN , TRANS_SYNT_V2 },
 223         { PIPE_SVCCTL  , SYNT_SVCCTL_V2        , PIPE_NTSVCS   , TRANS_SYNT_V2 },
 224         { PIPE_EVENTLOG, SYNT_EVENTLOG_V0      , PIPE_EVENTLOG , TRANS_SYNT_V2 },
 225         { PIPE_NTSVCS  , SYNT_NTSVCS_V1        , PIPE_NTSVCS   , TRANS_SYNT_V2 },
 226         { NULL         , SYNT_NONE_V0          , NULL          , SYNT_NONE_V0  }
 227 };
 228
 229 /****************************************************************************
 230  Return the pipe name from the index.
 231  ****************************************************************************/
 232
 233 const char *cli_get_pipe_name(int pipe_idx)
 234 {
 235         return &pipe_names[pipe_idx].client_pipe[5];
 236 }
 237
 238 /*******************************************************************
 239  Inits an RPC_HDR structure.
 240 ********************************************************************/
 241
 242 void init_rpc_hdr(RPC_HDR *hdr, enum RPC_PKT_TYPE pkt_type, uint8 flags,
 243                                 uint32 call_id, int data_len, int auth_len)
 244 {
 245         hdr->major        = 5;               /* RPC version 5 */
 246         hdr->minor        = 0;               /* minor version 0 */
 247         hdr->pkt_type     = pkt_type;        /* RPC packet type */
 248         hdr->flags        = flags;           /* dce/rpc flags */
 249         hdr->pack_type[0] = 0x10;            /* little-endian data representation */
 250         hdr->pack_type[1] = 0;               /* packed data representation */
 251         hdr->pack_type[2] = 0;               /* packed data representation */
 252         hdr->pack_type[3] = 0;               /* packed data representation */
 253         hdr->frag_len     = data_len;        /* fragment length, fill in later */
 254         hdr->auth_len     = auth_len;        /* authentication length */
 255         hdr->call_id      = call_id;         /* call identifier - match incoming RPC */
 256 }
 257
 258 /*******************************************************************
 259  Reads or writes an RPC_HDR structure.
 260 ********************************************************************/
 261
 262 BOOL smb_io_rpc_hdr(const char *desc,  RPC_HDR *rpc, prs_struct *ps, int depth)
 263 {
 264         if (rpc == NULL)
 265                 return False;
 266
 267         prs_debug(ps, depth, desc, "smb_io_rpc_hdr");
 268         depth++;
 269
 270         if(!prs_uint8 ("major     ", ps, depth, &rpc->major))
 271                 return False;
 272
 273         if(!prs_uint8 ("minor     ", ps, depth, &rpc->minor))
 274                 return False;
 275         if(!prs_uint8 ("pkt_type  ", ps, depth, &rpc->pkt_type))
 276                 return False;
 277         if(!prs_uint8 ("flags     ", ps, depth, &rpc->flags))
 278                 return False;
 279
 280         /* We always marshall in little endian format. */
 281         if (MARSHALLING(ps))
 282                 rpc->pack_type[0] = 0x10;
 283
 284         if(!prs_uint8("pack_type0", ps, depth, &rpc->pack_type[0]))
 285                 return False;
 286         if(!prs_uint8("pack_type1", ps, depth, &rpc->pack_type[1]))
 287                 return False;
 288         if(!prs_uint8("pack_type2", ps, depth, &rpc->pack_type[2]))
 289                 return False;
 290         if(!prs_uint8("pack_type3", ps, depth, &rpc->pack_type[3]))
 291                 return False;
 292
 293         /*
 294          * If reading and pack_type[0] == 0 then the data is in big-endian
 295          * format. Set the flag in the prs_struct to specify reverse-endainness.
 296          */
 297
 298         if (UNMARSHALLING(ps) && rpc->pack_type[0] == 0) {
 299                 DEBUG(10,("smb_io_rpc_hdr: PDU data format is big-endian. Setting flag.\n"));
 300                 prs_set_endian_data(ps, RPC_BIG_ENDIAN);
 301         }
 302
 303         if(!prs_uint16("frag_len  ", ps, depth, &rpc->frag_len))
 304                 return False;
 305         if(!prs_uint16("auth_len  ", ps, depth, &rpc->auth_len))
 306                 return False;
 307         if(!prs_uint32("call_id   ", ps, depth, &rpc->call_id))
 308                 return False;
 309         return True;
 310 }
 311
 312 /*******************************************************************
 313  Reads or writes an RPC_IFACE structure.
 314 ********************************************************************/
 315
 316 static BOOL smb_io_rpc_iface(const char *desc, RPC_IFACE *ifc, prs_struct *ps, int depth)
 317 {
 318         if (ifc == NULL)
 319                 return False;
 320
 321         prs_debug(ps, depth, desc, "smb_io_rpc_iface");
 322         depth++;
 323
 324         if (!prs_align(ps))
 325                 return False;
 326
 327         if (!smb_io_uuid(  "uuid", &ifc->uuid, ps, depth))
 328                 return False;
 329
 330         if(!prs_uint32 ("version", ps, depth, &ifc->version))
 331                 return False;
 332
 333         return True;
 334 }
 335
 336 /*******************************************************************
 337  Inits an RPC_ADDR_STR structure.
 338 ********************************************************************/
 339
 340 static void init_rpc_addr_str(RPC_ADDR_STR *str, const char *name)
 341 {
 342         str->len = strlen(name) + 1;
 343         fstrcpy(str->str, name);
 344 }
 345
 346 /*******************************************************************
 347  Reads or writes an RPC_ADDR_STR structure.
 348 ********************************************************************/
 349
 350 static BOOL smb_io_rpc_addr_str(const char *desc,  RPC_ADDR_STR *str, prs_struct *ps, int depth)
 351 {
 352         if (str == NULL)
 353                 return False;
 354
 355         prs_debug(ps, depth, desc, "smb_io_rpc_addr_str");
 356         depth++;
 357         if(!prs_align(ps))
 358                 return False;
 359
 360         if(!prs_uint16 (      "len", ps, depth, &str->len))
 361                 return False;
 362         if(!prs_uint8s (True, "str", ps, depth, (uchar*)str->str, MIN(str->len, sizeof(str->str)) ))
 363                 return False;
 364         return True;
 365 }
 366
 367 /*******************************************************************
 368  Inits an RPC_HDR_BBA structure.
 369 ********************************************************************/
 370
 371 static void init_rpc_hdr_bba(RPC_HDR_BBA *bba, uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid)
 372 {
 373         bba->max_tsize = max_tsize; /* maximum transmission fragment size (0x1630) */
 374         bba->max_rsize = max_rsize; /* max receive fragment size (0x1630) */
 375         bba->assoc_gid = assoc_gid; /* associated group id (0x0) */
 376 }
 377
 378 /*******************************************************************
 379  Reads or writes an RPC_HDR_BBA structure.
 380 ********************************************************************/
 381
 382 static BOOL smb_io_rpc_hdr_bba(const char *desc,  RPC_HDR_BBA *rpc, prs_struct *ps, int depth)
 383 {
 384         if (rpc == NULL)
 385                 return False;
 386
 387         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_bba");
 388         depth++;
 389
 390         if(!prs_uint16("max_tsize", ps, depth, &rpc->max_tsize))
 391                 return False;
 392         if(!prs_uint16("max_rsize", ps, depth, &rpc->max_rsize))
 393                 return False;
 394         if(!prs_uint32("assoc_gid", ps, depth, &rpc->assoc_gid))
 395                 return False;
 396         return True;
 397 }
 398
 399 /*******************************************************************
 400  Inits an RPC_CONTEXT structure.
 401  Note the transfer pointer must remain valid until this is marshalled.
 402 ********************************************************************/
 403
 404 void init_rpc_context(RPC_CONTEXT *rpc_ctx, uint16 context_id, RPC_IFACE *abstract, RPC_IFACE *transfer)
 405 {
 406         rpc_ctx->context_id   = context_id   ; /* presentation context identifier (0x0) */
 407         rpc_ctx->num_transfer_syntaxes = 1 ; /* the number of syntaxes (has always been 1?)(0x1) */
 408
 409         /* num and vers. of interface client is using */
 410         rpc_ctx->abstract = *abstract;
 411
 412         /* vers. of interface to use for replies */
 413         rpc_ctx->transfer = transfer;
 414 }
 415
 416 /*******************************************************************
 417  Inits an RPC_HDR_RB structure.
 418  Note the context pointer must remain valid until this is marshalled.
 419 ********************************************************************/
 420
 421 void init_rpc_hdr_rb(RPC_HDR_RB *rpc,
 422                                 uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid,
 423                                 RPC_CONTEXT *context)
 424 {
 425         init_rpc_hdr_bba(&rpc->bba, max_tsize, max_rsize, assoc_gid);
 426
 427         rpc->num_contexts = 1;
 428         rpc->rpc_context = context;
 429 }
 430
 431 /*******************************************************************
 432  Reads or writes an RPC_CONTEXT structure.
 433 ********************************************************************/
 434
 435 BOOL smb_io_rpc_context(const char *desc, RPC_CONTEXT *rpc_ctx, prs_struct *ps, int depth)
 436 {
 437         int i;
 438
 439         if (rpc_ctx == NULL)
 440                 return False;
 441
 442         if(!prs_align(ps))
 443                 return False;
 444         if(!prs_uint16("context_id  ", ps, depth, &rpc_ctx->context_id ))
 445                 return False;
 446         if(!prs_uint8 ("num_transfer_syntaxes", ps, depth, &rpc_ctx->num_transfer_syntaxes))
 447                 return False;
 448
 449         /* num_transfer_syntaxes must not be zero. */
 450         if (rpc_ctx->num_transfer_syntaxes == 0)
 451                 return False;
 452
 453         if(!smb_io_rpc_iface("", &rpc_ctx->abstract, ps, depth))
 454                 return False;
 455
 456         if (UNMARSHALLING(ps)) {
 457                 if (!(rpc_ctx->transfer = PRS_ALLOC_MEM(ps, RPC_IFACE, rpc_ctx->num_transfer_syntaxes))) {
 458                         return False;
 459                 }
 460         }
 461
 462         for (i = 0; i < rpc_ctx->num_transfer_syntaxes; i++ ) {
 463                 if (!smb_io_rpc_iface("", &rpc_ctx->transfer[i], ps, depth))
 464                         return False;
 465         }
 466         return True;
 467 }
 468
 469 /*******************************************************************
 470  Reads or writes an RPC_HDR_RB structure.
 471 ********************************************************************/
 472
 473 BOOL smb_io_rpc_hdr_rb(const char *desc, RPC_HDR_RB *rpc, prs_struct *ps, int depth)
 474 {
 475         int i;
 476
 477         if (rpc == NULL)
 478                 return False;
 479
 480         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_rb");
 481         depth++;
 482
 483         if(!smb_io_rpc_hdr_bba("", &rpc->bba, ps, depth))
 484                 return False;
 485
 486         if(!prs_uint8("num_contexts", ps, depth, &rpc->num_contexts))
 487                 return False;
 488
 489         /* 3 pad bytes following - will be mopped up by the prs_align in smb_io_rpc_context(). */
 490
 491         /* num_contexts must not be zero. */
 492         if (rpc->num_contexts == 0)
 493                 return False;
 494
 495         if (UNMARSHALLING(ps)) {
 496                 if (!(rpc->rpc_context = PRS_ALLOC_MEM(ps, RPC_CONTEXT, rpc->num_contexts))) {
 497                         return False;
 498                 }
 499         }
 500
 501         for (i = 0; i < rpc->num_contexts; i++ ) {
 502                 if (!smb_io_rpc_context("", &rpc->rpc_context[i], ps, depth))
 503                         return False;
 504         }
 505
 506         return True;
 507 }
 508
 509 /*******************************************************************
 510  Inits an RPC_RESULTS structure.
 511
 512  lkclXXXX only one reason at the moment!
 513 ********************************************************************/
 514
 515 static void init_rpc_results(RPC_RESULTS *res,
 516                                 uint8 num_results, uint16 result, uint16 reason)
 517 {
 518         res->num_results = num_results; /* the number of results (0x01) */
 519         res->result      = result     ;  /* result (0x00 = accept) */
 520         res->reason      = reason     ;  /* reason (0x00 = no reason specified) */
 521 }
 522
 523 /*******************************************************************
 524  Reads or writes an RPC_RESULTS structure.
 525
 526  lkclXXXX only one reason at the moment!
 527 ********************************************************************/
 528
 529 static BOOL smb_io_rpc_results(const char *desc, RPC_RESULTS *res, prs_struct *ps, int depth)
 530 {
 531         if (res == NULL)
 532                 return False;
 533
 534         prs_debug(ps, depth, desc, "smb_io_rpc_results");
 535         depth++;
 536
 537         if(!prs_align(ps))
 538                 return False;
 539
 540         if(!prs_uint8 ("num_results", ps, depth, &res->num_results))
 541                 return False;
 542
 543         if(!prs_align(ps))
 544                 return False;
 545
 546         if(!prs_uint16("result     ", ps, depth, &res->result))
 547                 return False;
 548         if(!prs_uint16("reason     ", ps, depth, &res->reason))
 549                 return False;
 550         return True;
 551 }
 552
 553 /*******************************************************************
 554  Init an RPC_HDR_BA structure.
 555
 556  lkclXXXX only one reason at the moment!
 557
 558 ********************************************************************/
 559
 560 void init_rpc_hdr_ba(RPC_HDR_BA *rpc,
 561                                 uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid,
 562                                 const char *pipe_addr,
 563                                 uint8 num_results, uint16 result, uint16 reason,
 564                                 RPC_IFACE *transfer)
 565 {
 566         init_rpc_hdr_bba (&rpc->bba, max_tsize, max_rsize, assoc_gid);
 567         init_rpc_addr_str(&rpc->addr, pipe_addr);
 568         init_rpc_results (&rpc->res, num_results, result, reason);
 569
 570         /* the transfer syntax from the request */
 571         memcpy(&rpc->transfer, transfer, sizeof(rpc->transfer));
 572 }
 573
 574 /*******************************************************************
 575  Reads or writes an RPC_HDR_BA structure.
 576 ********************************************************************/
 577
 578 BOOL smb_io_rpc_hdr_ba(const char *desc, RPC_HDR_BA *rpc, prs_struct *ps, int depth)
 579 {
 580         if (rpc == NULL)
 581                 return False;
 582
 583         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_ba");
 584         depth++;
 585
 586         if(!smb_io_rpc_hdr_bba("", &rpc->bba, ps, depth))
 587                 return False;
 588         if(!smb_io_rpc_addr_str("", &rpc->addr, ps, depth))
 589                 return False;
 590         if(!smb_io_rpc_results("", &rpc->res, ps, depth))
 591                 return False;
 592         if(!smb_io_rpc_iface("", &rpc->transfer, ps, depth))
 593                 return False;
 594         return True;
 595 }
 596
 597 /*******************************************************************
 598  Init an RPC_HDR_REQ structure.
 599 ********************************************************************/
 600
 601 void init_rpc_hdr_req(RPC_HDR_REQ *hdr, uint32 alloc_hint, uint16 opnum)
 602 {
 603         hdr->alloc_hint   = alloc_hint; /* allocation hint */
 604         hdr->context_id   = 0;         /* presentation context identifier */
 605         hdr->opnum        = opnum;     /* opnum */
 606 }
 607
 608 /*******************************************************************
 609  Reads or writes an RPC_HDR_REQ structure.
 610 ********************************************************************/
 611
 612 BOOL smb_io_rpc_hdr_req(const char *desc, RPC_HDR_REQ *rpc, prs_struct *ps, int depth)
 613 {
 614         if (rpc == NULL)
 615                 return False;
 616
 617         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_req");
 618         depth++;
 619
 620         if(!prs_uint32("alloc_hint", ps, depth, &rpc->alloc_hint))
 621                 return False;
 622         if(!prs_uint16("context_id", ps, depth, &rpc->context_id))
 623                 return False;
 624         if(!prs_uint16("opnum     ", ps, depth, &rpc->opnum))
 625                 return False;
 626         return True;
 627 }
 628
 629 /*******************************************************************
 630  Reads or writes an RPC_HDR_RESP structure.
 631 ********************************************************************/
 632
 633 BOOL smb_io_rpc_hdr_resp(const char *desc, RPC_HDR_RESP *rpc, prs_struct *ps, int depth)
 634 {
 635         if (rpc == NULL)
 636                 return False;
 637
 638         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_resp");
 639         depth++;
 640
 641         if(!prs_uint32("alloc_hint", ps, depth, &rpc->alloc_hint))
 642                 return False;
 643         if(!prs_uint16("context_id", ps, depth, &rpc->context_id))
 644                 return False;
 645         if(!prs_uint8 ("cancel_ct ", ps, depth, &rpc->cancel_count))
 646                 return False;
 647         if(!prs_uint8 ("reserved  ", ps, depth, &rpc->reserved))
 648                 return False;
 649         return True;
 650 }
 651
 652 /*******************************************************************
 653  Reads or writes an RPC_HDR_FAULT structure.
 654 ********************************************************************/
 655
 656 BOOL smb_io_rpc_hdr_fault(const char *desc, RPC_HDR_FAULT *rpc, prs_struct *ps, int depth)
 657 {
 658         if (rpc == NULL)
 659                 return False;
 660
 661         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_fault");
 662         depth++;
 663
 664         if(!prs_dcerpc_status("status  ", ps, depth, &rpc->status))
 665                 return False;
 666         if(!prs_uint32("reserved", ps, depth, &rpc->reserved))
 667                 return False;
 668
 669     return True;
 670 }
 671
 672 /*******************************************************************
 673  Inits an RPC_HDR_AUTH structure.
 674 ********************************************************************/
 675
 676 void init_rpc_hdr_auth(RPC_HDR_AUTH *rai,
 677                                 uint8 auth_type, uint8 auth_level,
 678                                 uint8 auth_pad_len,
 679                                 uint32 auth_context_id)
 680 {
 681         rai->auth_type     = auth_type;
 682         rai->auth_level    = auth_level;
 683         rai->auth_pad_len  = auth_pad_len;
 684         rai->auth_reserved = 0;
 685         rai->auth_context_id = auth_context_id;
 686 }
 687
 688 /*******************************************************************
 689  Reads or writes an RPC_HDR_AUTH structure.
 690 ********************************************************************/
 691
 692 BOOL smb_io_rpc_hdr_auth(const char *desc, RPC_HDR_AUTH *rai, prs_struct *ps, int depth)
 693 {
 694         if (rai == NULL)
 695                 return False;
 696
 697         prs_debug(ps, depth, desc, "smb_io_rpc_hdr_auth");
 698         depth++;
 699
 700         if(!prs_align(ps))
 701                 return False;
 702
 703         if(!prs_uint8 ("auth_type    ", ps, depth, &rai->auth_type))
 704                 return False;
 705         if(!prs_uint8 ("auth_level   ", ps, depth, &rai->auth_level))
 706                 return False;
 707         if(!prs_uint8 ("auth_pad_len ", ps, depth, &rai->auth_pad_len))
 708                 return False;
 709         if(!prs_uint8 ("auth_reserved", ps, depth, &rai->auth_reserved))
 710                 return False;
 711         if(!prs_uint32("auth_context_id", ps, depth, &rai->auth_context_id))
 712                 return False;
 713
 714         return True;
 715 }
 716
 717 /*******************************************************************
 718  Checks an RPC_AUTH_VERIFIER structure.
 719 ********************************************************************/
 720
 721 BOOL rpc_auth_verifier_chk(RPC_AUTH_VERIFIER *rav,
 722                                 const char *signature, uint32 msg_type)
 723 {
 724         return (strequal(rav->signature, signature) && rav->msg_type == msg_type);
 725 }
 726
 727 /*******************************************************************
 728  Inits an RPC_AUTH_VERIFIER structure.
 729 ********************************************************************/
 730
 731 void init_rpc_auth_verifier(RPC_AUTH_VERIFIER *rav,
 732                                 const char *signature, uint32 msg_type)
 733 {
 734         fstrcpy(rav->signature, signature); /* "NTLMSSP" */
 735         rav->msg_type = msg_type; /* NTLMSSP_MESSAGE_TYPE */
 736 }
 737
 738 /*******************************************************************
 739  Reads or writes an RPC_AUTH_VERIFIER structure.
 740 ********************************************************************/
 741
 742 BOOL smb_io_rpc_auth_verifier(const char *desc, RPC_AUTH_VERIFIER *rav, prs_struct *ps, int depth)
 743 {
 744         if (rav == NULL)
 745                 return False;
 746
 747         prs_debug(ps, depth, desc, "smb_io_rpc_auth_verifier");
 748         depth++;
 749
 750         /* "NTLMSSP" */
 751         if(!prs_string("signature", ps, depth, rav->signature,
 752                         sizeof(rav->signature)))
 753                 return False;
 754         if(!prs_uint32("msg_type ", ps, depth, &rav->msg_type)) /* NTLMSSP_MESSAGE_TYPE */
 755                 return False;
 756
 757         return True;
 758 }
 759
 760 /*******************************************************************
 761  This parses an RPC_AUTH_VERIFIER for schannel. I think
 762 ********************************************************************/
 763
 764 BOOL smb_io_rpc_schannel_verifier(const char *desc, RPC_AUTH_VERIFIER *rav, prs_struct *ps, int depth)
 765 {
 766         if (rav == NULL)
 767                 return False;
 768
 769         prs_debug(ps, depth, desc, "smb_io_rpc_schannel_verifier");
 770         depth++;
 771
 772         if(!prs_string("signature", ps, depth, rav->signature, sizeof(rav->signature)))
 773                 return False;
 774         if(!prs_uint32("msg_type ", ps, depth, &rav->msg_type))
 775                 return False;
 776
 777         return True;
 778 }
 779
 780 /*******************************************************************
 781 creates an RPC_AUTH_SCHANNEL_NEG structure.
 782 ********************************************************************/
 783
 784 void init_rpc_auth_schannel_neg(RPC_AUTH_SCHANNEL_NEG *neg,
 785                               const char *domain, const char *myname)
 786 {
 787         neg->type1 = 0;
 788         neg->type2 = 0x3;
 789         fstrcpy(neg->domain, domain);
 790         fstrcpy(neg->myname, myname);
 791 }
 792
 793 /*******************************************************************
 794  Reads or writes an RPC_AUTH_SCHANNEL_NEG structure.
 795 ********************************************************************/
 796
 797 BOOL smb_io_rpc_auth_schannel_neg(const char *desc, RPC_AUTH_SCHANNEL_NEG *neg,
 798                                 prs_struct *ps, int depth)
 799 {
 800         if (neg == NULL)
 801                 return False;
 802
 803         prs_debug(ps, depth, desc, "smb_io_rpc_auth_schannel_neg");
 804         depth++;
 805
 806         if(!prs_align(ps))
 807                 return False;
 808
 809         if(!prs_uint32("type1", ps, depth, &neg->type1))
 810                 return False;
 811         if(!prs_uint32("type2", ps, depth, &neg->type2))
 812                 return False;
 813         if(!prs_string("domain  ", ps, depth, neg->domain, sizeof(neg->domain)))
 814                 return False;
 815         if(!prs_string("myname  ", ps, depth, neg->myname, sizeof(neg->myname)))
 816                 return False;
 817
 818         return True;
 819 }
 820
 821 /*******************************************************************
 822 reads or writes an RPC_AUTH_SCHANNEL_CHK structure.
 823 ********************************************************************/
 824
 825 BOOL smb_io_rpc_auth_schannel_chk(const char *desc, int auth_len,
 826                                 RPC_AUTH_SCHANNEL_CHK * chk,
 827                                 prs_struct *ps, int depth)
 828 {
 829         if (chk == NULL)
 830                 return False;
 831
 832         prs_debug(ps, depth, desc, "smb_io_rpc_auth_schannel_chk");
 833         depth++;
 834
 835         if ( !prs_uint8s(False, "sig  ", ps, depth, chk->sig, sizeof(chk->sig)) )
 836                 return False;
 837
 838         if ( !prs_uint8s(False, "seq_num", ps, depth, chk->seq_num, sizeof(chk->seq_num)) )
 839                 return False;
 840
 841         if ( !prs_uint8s(False, "packet_digest", ps, depth, chk->packet_digest, sizeof(chk->packet_digest)) )
 842                 return False;
 843
 844         if ( auth_len == RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN ) {
 845                 if ( !prs_uint8s(False, "confounder", ps, depth, chk->confounder, sizeof(chk->confounder)) )
 846                         return False;
 847         }
 848
 849         return True;
 850 }