source3/rpc_parse/parse_misc.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) Gerald (Jerry) Carter             2005
   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  Reads or writes a UTIME type.
  30 ********************************************************************/
  31
  32 static bool smb_io_utime(const char *desc, UTIME *t, prs_struct *ps, int depth)
  33 {
  34         if (t == NULL)
  35                 return False;
  36
  37         prs_debug(ps, depth, desc, "smb_io_utime");
  38         depth++;
  39
  40         if(!prs_align(ps))
  41                 return False;
  42
  43         if(!prs_uint32 ("time", ps, depth, &t->time))
  44                 return False;
  45
  46         return True;
  47 }
  48
  49 /*******************************************************************
  50  Reads or writes an NTTIME structure.
  51 ********************************************************************/
  52
  53 bool smb_io_time(const char *desc, NTTIME *nttime, prs_struct *ps, int depth)
  54 {
  55         uint32 low, high;
  56         if (nttime == NULL)
  57                 return False;
  58
  59         prs_debug(ps, depth, desc, "smb_io_time");
  60         depth++;
  61
  62         if(!prs_align(ps))
  63                 return False;
  64
  65         if (MARSHALLING(ps)) {
  66                 low = *nttime & 0xFFFFFFFF;
  67                 high = *nttime >> 32;
  68         }
  69
  70         if(!prs_uint32("low ", ps, depth, &low)) /* low part */
  71                 return False;
  72         if(!prs_uint32("high", ps, depth, &high)) /* high part */
  73                 return False;
  74
  75         if (UNMARSHALLING(ps)) {
  76                 *nttime = (((uint64_t)high << 32) + low);
  77         }
  78
  79         return True;
  80 }
  81
  82 /*******************************************************************
  83  Reads or writes an NTTIME structure.
  84 ********************************************************************/
  85
  86 bool smb_io_nttime(const char *desc, prs_struct *ps, int depth, NTTIME *nttime)
  87 {
  88         return smb_io_time( desc, nttime, ps, depth );
  89 }
  90
  91 /*******************************************************************
  92  Gets an enumeration handle from an ENUM_HND structure.
  93 ********************************************************************/
  94
  95 uint32 get_enum_hnd(ENUM_HND *enh)
  96 {
  97         return (enh && enh->ptr_hnd != 0) ? enh->handle : 0;
  98 }
  99
 100 /*******************************************************************
 101  Inits an ENUM_HND structure.
 102 ********************************************************************/
 103
 104 void init_enum_hnd(ENUM_HND *enh, uint32 hnd)
 105 {
 106         DEBUG(5,("smb_io_enum_hnd\n"));
 107
 108         enh->ptr_hnd = (hnd != 0) ? 1 : 0;
 109         enh->handle = hnd;
 110 }
 111
 112 /*******************************************************************
 113  Reads or writes an ENUM_HND structure.
 114 ********************************************************************/
 115
 116 bool smb_io_enum_hnd(const char *desc, ENUM_HND *hnd, prs_struct *ps, int depth)
 117 {
 118         if (hnd == NULL)
 119                 return False;
 120
 121         prs_debug(ps, depth, desc, "smb_io_enum_hnd");
 122         depth++;
 123
 124         if(!prs_align(ps))
 125                 return False;
 126
 127         if(!prs_uint32("ptr_hnd", ps, depth, &hnd->ptr_hnd)) /* pointer */
 128                 return False;
 129
 130         if (hnd->ptr_hnd != 0) {
 131                 if(!prs_uint32("handle ", ps, depth, &hnd->handle )) /* enum handle */
 132                         return False;
 133         }
 134
 135         return True;
 136 }
 137
 138 /*******************************************************************
 139  Reads or writes a DOM_SID structure.
 140 ********************************************************************/
 141
 142 bool smb_io_dom_sid(const char *desc, DOM_SID *sid, prs_struct *ps, int depth)
 143 {
 144         int i;
 145
 146         if (sid == NULL)
 147                 return False;
 148
 149         prs_debug(ps, depth, desc, "smb_io_dom_sid");
 150         depth++;
 151
 152         if(!prs_uint8 ("sid_rev_num", ps, depth, &sid->sid_rev_num))
 153                 return False;
 154
 155         if(!prs_uint8 ("num_auths  ", ps, depth, (uint8 *)&sid->num_auths))
 156                 return False;
 157
 158         for (i = 0; i < 6; i++)
 159         {
 160                 fstring tmp;
 161                 slprintf(tmp, sizeof(tmp) - 1, "id_auth[%d] ", i);
 162                 if(!prs_uint8 (tmp, ps, depth, &sid->id_auth[i]))
 163                         return False;
 164         }
 165
 166         /* oops! XXXX should really issue a warning here... */
 167         if (sid->num_auths > MAXSUBAUTHS)
 168                 sid->num_auths = MAXSUBAUTHS;
 169
 170         if(!prs_uint32s(False, "sub_auths ", ps, depth, sid->sub_auths, sid->num_auths))
 171                 return False;
 172
 173         return True;
 174 }
 175
 176 /*******************************************************************
 177  Inits a DOM_SID2 structure.
 178 ********************************************************************/
 179
 180 void init_dom_sid2(DOM_SID2 *sid2, const DOM_SID *sid)
 181 {
 182         sid2->sid = *sid;
 183         sid2->num_auths = sid2->sid.num_auths;
 184 }
 185
 186 /*******************************************************************
 187  Reads or writes a DOM_SID2 structure.
 188 ********************************************************************/
 189
 190 bool smb_io_dom_sid2_p(const char *desc, prs_struct *ps, int depth, DOM_SID2 **sid2)
 191 {
 192         uint32 data_p;
 193
 194         /* caputure the pointer value to stream */
 195
 196         data_p = *sid2 ? 0xf000baaa : 0;
 197
 198         if ( !prs_uint32("dom_sid2_p", ps, depth, &data_p ))
 199                 return False;
 200
 201         /* we're done if there is no data */
 202
 203         if ( !data_p )
 204                 return True;
 205
 206         if (UNMARSHALLING(ps)) {
 207                 if ( !(*sid2 = PRS_ALLOC_MEM(ps, DOM_SID2, 1)) )
 208                         return False;
 209         }
 210
 211         return True;
 212 }
 213 /*******************************************************************
 214  Reads or writes a DOM_SID2 structure.
 215 ********************************************************************/
 216
 217 bool smb_io_dom_sid2(const char *desc, DOM_SID2 *sid, prs_struct *ps, int depth)
 218 {
 219         if (sid == NULL)
 220                 return False;
 221
 222         prs_debug(ps, depth, desc, "smb_io_dom_sid2");
 223         depth++;
 224
 225         if(!prs_align(ps))
 226                 return False;
 227
 228         if(!prs_uint32("num_auths", ps, depth, &sid->num_auths))
 229                 return False;
 230
 231         if(!smb_io_dom_sid("sid", &sid->sid, ps, depth))
 232                 return False;
 233
 234         return True;
 235 }
 236
 237 /*******************************************************************
 238  Reads or writes a struct GUID
 239 ********************************************************************/
 240
 241 bool smb_io_uuid(const char *desc, struct GUID *uuid,
 242                  prs_struct *ps, int depth)
 243 {
 244         if (uuid == NULL)
 245                 return False;
 246
 247         prs_debug(ps, depth, desc, "smb_io_uuid");
 248         depth++;
 249
 250         if(!prs_uint32 ("data   ", ps, depth, &uuid->time_low))
 251                 return False;
 252         if(!prs_uint16 ("data   ", ps, depth, &uuid->time_mid))
 253                 return False;
 254         if(!prs_uint16 ("data   ", ps, depth, &uuid->time_hi_and_version))
 255                 return False;
 256
 257         if(!prs_uint8s (False, "data   ", ps, depth, uuid->clock_seq, sizeof(uuid->clock_seq)))
 258                 return False;
 259         if(!prs_uint8s (False, "data   ", ps, depth, uuid->node, sizeof(uuid->node)))
 260                 return False;
 261
 262         return True;
 263 }
 264
 265 /*******************************************************************
 266 creates a STRHDR structure.
 267 ********************************************************************/
 268
 269 void init_str_hdr(STRHDR *hdr, int max_len, int len, uint32 buffer)
 270 {
 271         hdr->str_max_len = max_len;
 272         hdr->str_str_len = len;
 273         hdr->buffer      = buffer;
 274 }
 275
 276 /*******************************************************************
 277  Reads or writes a STRHDR structure.
 278 ********************************************************************/
 279
 280 bool smb_io_strhdr(const char *desc,  STRHDR *hdr, prs_struct *ps, int depth)
 281 {
 282         if (hdr == NULL)
 283                 return False;
 284
 285         prs_debug(ps, depth, desc, "smb_io_strhdr");
 286         depth++;
 287
 288         if(!prs_align(ps))
 289                 return False;
 290
 291         if(!prs_uint16("str_str_len", ps, depth, &hdr->str_str_len))
 292                 return False;
 293         if(!prs_uint16("str_max_len", ps, depth, &hdr->str_max_len))
 294                 return False;
 295         if(!prs_uint32("buffer     ", ps, depth, &hdr->buffer))
 296                 return False;
 297
 298         return True;
 299 }
 300
 301 /*******************************************************************
 302  Inits a UNIHDR structure.
 303 ********************************************************************/
 304
 305 void init_uni_hdr(UNIHDR *hdr, UNISTR2 *str2)
 306 {
 307         hdr->uni_str_len = 2 * (str2->uni_str_len);
 308         hdr->uni_max_len = 2 * (str2->uni_max_len);
 309         hdr->buffer = (str2->uni_str_len != 0) ? 1 : 0;
 310 }
 311
 312 /*******************************************************************
 313  Reads or writes a UNIHDR structure.
 314 ********************************************************************/
 315
 316 bool smb_io_unihdr(const char *desc, UNIHDR *hdr, prs_struct *ps, int depth)
 317 {
 318         if (hdr == NULL)
 319                 return False;
 320
 321         prs_debug(ps, depth, desc, "smb_io_unihdr");
 322         depth++;
 323
 324         if(!prs_align(ps))
 325                 return False;
 326
 327         if(!prs_uint16("uni_str_len", ps, depth, &hdr->uni_str_len))
 328                 return False;
 329         if(!prs_uint16("uni_max_len", ps, depth, &hdr->uni_max_len))
 330                 return False;
 331         if(!prs_uint32("buffer     ", ps, depth, &hdr->buffer))
 332                 return False;
 333
 334         return True;
 335 }
 336
 337 /*******************************************************************
 338  Inits a BUFHDR structure.
 339 ********************************************************************/
 340
 341 void init_buf_hdr(BUFHDR *hdr, int max_len, int len)
 342 {
 343         hdr->buf_max_len = max_len;
 344         hdr->buf_len     = len;
 345 }
 346
 347 /*******************************************************************
 348  prs_uint16 wrapper. Call this and it sets up a pointer to where the
 349  uint16 should be stored, or gets the size if reading.
 350  ********************************************************************/
 351
 352 bool smb_io_hdrbuf_pre(const char *desc, BUFHDR *hdr, prs_struct *ps, int depth, uint32 *offset)
 353 {
 354         (*offset) = prs_offset(ps);
 355         if (ps->io) {
 356
 357                 /* reading. */
 358
 359                 if(!smb_io_hdrbuf(desc, hdr, ps, depth))
 360                         return False;
 361
 362         } else {
 363
 364                 /* writing. */
 365
 366                 if(!prs_set_offset(ps, prs_offset(ps) + (sizeof(uint32) * 2)))
 367                         return False;
 368         }
 369
 370         return True;
 371 }
 372
 373 /*******************************************************************
 374  smb_io_hdrbuf wrapper. Call this and it retrospectively stores the size.
 375  Does nothing on reading, as that is already handled by ...._pre()
 376  ********************************************************************/
 377
 378 bool smb_io_hdrbuf_post(const char *desc, BUFHDR *hdr, prs_struct *ps, int depth,
 379                                 uint32 ptr_hdrbuf, uint32 max_len, uint32 len)
 380 {
 381         if (!ps->io) {
 382                 /* writing: go back and do a retrospective job.  i hate this */
 383
 384                 uint32 old_offset = prs_offset(ps);
 385
 386                 init_buf_hdr(hdr, max_len, len);
 387                 if(!prs_set_offset(ps, ptr_hdrbuf))
 388                         return False;
 389                 if(!smb_io_hdrbuf(desc, hdr, ps, depth))
 390                         return False;
 391
 392                 if(!prs_set_offset(ps, old_offset))
 393                         return False;
 394         }
 395
 396         return True;
 397 }
 398
 399 /*******************************************************************
 400  Reads or writes a BUFHDR structure.
 401 ********************************************************************/
 402
 403 bool smb_io_hdrbuf(const char *desc, BUFHDR *hdr, prs_struct *ps, int depth)
 404 {
 405         if (hdr == NULL)
 406                 return False;
 407
 408         prs_debug(ps, depth, desc, "smb_io_hdrbuf");
 409         depth++;
 410
 411         if(!prs_align(ps))
 412                 return False;
 413
 414         if(!prs_uint32("buf_max_len", ps, depth, &hdr->buf_max_len))
 415                 return False;
 416         if(!prs_uint32("buf_len    ", ps, depth, &hdr->buf_len))
 417                 return False;
 418
 419         return True;
 420 }
 421
 422 /*******************************************************************
 423  Inits a UNISTR structure.
 424 ********************************************************************/
 425
 426 void init_unistr(UNISTR *str, const char *buf)
 427 {
 428         size_t len;
 429
 430         if (buf == NULL) {
 431                 str->buffer = NULL;
 432                 return;
 433         }
 434
 435         len = rpcstr_push_talloc(talloc_tos(), &str->buffer, buf);
 436         if (len == (size_t)-1) {
 437                 str->buffer = NULL;
 438         }
 439 }
 440
 441 /*******************************************************************
 442 reads or writes a UNISTR structure.
 443 XXXX NOTE: UNISTR structures NEED to be null-terminated.
 444 ********************************************************************/
 445
 446 bool smb_io_unistr(const char *desc, UNISTR *uni, prs_struct *ps, int depth)
 447 {
 448         if (uni == NULL)
 449                 return False;
 450
 451         prs_debug(ps, depth, desc, "smb_io_unistr");
 452         depth++;
 453
 454         if(!prs_unistr("unistr", ps, depth, uni))
 455                 return False;
 456
 457         return True;
 458 }
 459
 460 /*******************************************************************
 461  Allocate the RPC_DATA_BLOB memory.
 462 ********************************************************************/
 463
 464 static void create_rpc_blob(RPC_DATA_BLOB *str, size_t len)
 465 {
 466         if (len) {
 467                 str->buffer = (uint8 *)TALLOC_ZERO(talloc_tos(), len);
 468                 if (str->buffer == NULL)
 469                         smb_panic("create_rpc_blob: talloc fail");
 470                 str->buf_len = len;
 471         } else {
 472                 str->buffer = NULL;
 473                 str->buf_len = 0;
 474         }
 475 }
 476
 477 /*******************************************************************
 478  Inits a RPC_DATA_BLOB structure from a uint32
 479 ********************************************************************/
 480
 481 void init_rpc_blob_uint32(RPC_DATA_BLOB *str, uint32 val)
 482 {
 483         ZERO_STRUCTP(str);
 484
 485         /* set up string lengths. */
 486         create_rpc_blob(str, sizeof(uint32));
 487         SIVAL(str->buffer, 0, val);
 488 }
 489
 490 /*******************************************************************
 491  Inits a RPC_DATA_BLOB structure.
 492 ********************************************************************/
 493
 494 void init_rpc_blob_str(RPC_DATA_BLOB *str, const char *buf, int len)
 495 {
 496         ZERO_STRUCTP(str);
 497
 498         /* set up string lengths. */
 499         if (len) {
 500                 create_rpc_blob(str, len*2);
 501                 rpcstr_push(str->buffer, buf, (size_t)str->buf_len, STR_TERMINATE);
 502         }
 503 }
 504
 505 /*******************************************************************
 506  Inits a RPC_DATA_BLOB structure from a hex string.
 507 ********************************************************************/
 508
 509 void init_rpc_blob_hex(RPC_DATA_BLOB *str, const char *buf)
 510 {
 511         ZERO_STRUCTP(str);
 512         if (buf && *buf) {
 513                 size_t len = strlen(buf);
 514                 create_rpc_blob(str, len);
 515                 str->buf_len = strhex_to_str((char *)str->buffer, str->buf_len,
 516                                 buf, len);
 517         }
 518 }
 519
 520 /*******************************************************************
 521  Inits a RPC_DATA_BLOB structure.
 522 ********************************************************************/
 523
 524 void init_rpc_blob_bytes(RPC_DATA_BLOB *str, uint8 *buf, size_t len)
 525 {
 526         ZERO_STRUCTP(str);
 527
 528         /* max buffer size (allocated size) */
 529         if (buf != NULL && len) {
 530                 create_rpc_blob(str, len);
 531                 memcpy(str->buffer, buf, len);
 532         }
 533         str->buf_len = len;
 534 }
 535
 536 /*******************************************************************
 537 reads or writes a BUFFER5 structure.
 538 the buf_len member tells you how large the buffer is.
 539 ********************************************************************/
 540 bool smb_io_buffer5(const char *desc, BUFFER5 *buf5, prs_struct *ps, int depth)
 541 {
 542         prs_debug(ps, depth, desc, "smb_io_buffer5");
 543         depth++;
 544
 545         if (buf5 == NULL) return False;
 546
 547         if(!prs_align(ps))
 548                 return False;
 549         if(!prs_uint32("buf_len", ps, depth, &buf5->buf_len))
 550                 return False;
 551
 552         if(buf5->buf_len) {
 553                 if(!prs_buffer5(True, "buffer" , ps, depth, buf5))
 554                         return False;
 555         }
 556
 557         return True;
 558 }
 559
 560 /*******************************************************************
 561 creates a UNISTR2 structure: sets up the buffer, too
 562 ********************************************************************/
 563
 564 void init_buf_unistr2(UNISTR2 *str, uint32 *ptr, const char *buf)
 565 {
 566         if (buf != NULL) {
 567                 *ptr = 1;
 568                 init_unistr2(str, buf, UNI_STR_TERMINATE);
 569         } else {
 570                 *ptr = 0;
 571                 init_unistr2(str, NULL, UNI_FLAGS_NONE);
 572
 573         }
 574 }
 575
 576 /*******************************************************************
 577  Copies a UNISTR2 structure.
 578 ********************************************************************/
 579
 580 void copy_unistr2(UNISTR2 *str, const UNISTR2 *from)
 581 {
 582         if (from->buffer == NULL) {
 583                 ZERO_STRUCTP(str);
 584                 return;
 585         }
 586
 587         SMB_ASSERT(from->uni_max_len >= from->uni_str_len);
 588
 589         str->uni_max_len = from->uni_max_len;
 590         str->offset      = from->offset;
 591         str->uni_str_len = from->uni_str_len;
 592
 593         /* the string buffer is allocated to the maximum size
 594            (the the length of the source string) to prevent
 595            reallocation of memory. */
 596         if (str->buffer == NULL) {
 597                 if (str->uni_max_len) {
 598                         str->buffer = (uint16 *)TALLOC_ZERO_ARRAY(talloc_tos(), uint16, str->uni_max_len);
 599                         if ((str->buffer == NULL)) {
 600                                 smb_panic("copy_unistr2: talloc fail");
 601                                 return;
 602                         }
 603                         /* copy the string */
 604                         memcpy(str->buffer, from->buffer, str->uni_max_len*sizeof(uint16));
 605                 } else {
 606                         str->buffer = NULL;
 607                 }
 608         }
 609 }
 610
 611 /*******************************************************************
 612  Creates a STRING2 structure.
 613 ********************************************************************/
 614
 615 void init_string2(STRING2 *str, const char *buf, size_t max_len, size_t str_len)
 616 {
 617         /* set up string lengths. */
 618         SMB_ASSERT(max_len >= str_len);
 619
 620         /* Ensure buf is valid if str_len was set. Coverity check. */
 621         if (str_len && !buf) {
 622                 return;
 623         }
 624
 625         str->str_max_len = max_len;
 626         str->offset = 0;
 627         str->str_str_len = str_len;
 628
 629         /* store the string */
 630         if(str_len != 0) {
 631                 str->buffer = (uint8 *)TALLOC_ZERO(talloc_tos(),
 632                                                    str->str_max_len);
 633                 if (str->buffer == NULL)
 634                         smb_panic("init_string2: malloc fail");
 635                 memcpy(str->buffer, buf, str_len);
 636         }
 637 }
 638
 639 /*******************************************************************
 640  Reads or writes a STRING2 structure.
 641  XXXX NOTE: STRING2 structures need NOT be null-terminated.
 642    the str_str_len member tells you how long the string is;
 643    the str_max_len member tells you how large the buffer is.
 644 ********************************************************************/
 645
 646 bool smb_io_string2(const char *desc, STRING2 *str2, uint32 buffer, prs_struct *ps, int depth)
 647 {
 648         if (str2 == NULL)
 649                 return False;
 650
 651         if (buffer) {
 652
 653                 prs_debug(ps, depth, desc, "smb_io_string2");
 654                 depth++;
 655
 656                 if(!prs_align(ps))
 657                         return False;
 658
 659                 if(!prs_uint32("str_max_len", ps, depth, &str2->str_max_len))
 660                         return False;
 661                 if(!prs_uint32("offset     ", ps, depth, &str2->offset))
 662                         return False;
 663                 if(!prs_uint32("str_str_len", ps, depth, &str2->str_str_len))
 664                         return False;
 665
 666                 /* buffer advanced by indicated length of string
 667                    NOT by searching for null-termination */
 668                 if(!prs_string2(True, "buffer     ", ps, depth, str2))
 669                         return False;
 670
 671         } else {
 672
 673                 prs_debug(ps, depth, desc, "smb_io_string2 - NULL");
 674                 depth++;
 675                 memset((char *)str2, '\0', sizeof(*str2));
 676
 677         }
 678
 679         return True;
 680 }
 681
 682 /*******************************************************************
 683  Inits a UNISTR2 structure.
 684 ********************************************************************/
 685
 686 void init_unistr2(UNISTR2 *str, const char *buf, enum unistr2_term_codes flags)
 687 {
 688         size_t len = 0;
 689         uint32 num_chars = 0;
 690
 691         if (buf) {
 692                 /* We always null terminate the copy. */
 693                 len = strlen(buf) + 1;
 694                 if ( flags == UNI_STR_DBLTERMINATE )
 695                         len++;
 696         }
 697
 698         if (buf == NULL || len == 0) {
 699                 /* no buffer -- nothing to do */
 700                 str->uni_max_len = 0;
 701                 str->offset = 0;
 702                 str->uni_str_len = 0;
 703
 704                 return;
 705         }
 706
 707
 708         str->buffer = TALLOC_ZERO_ARRAY(talloc_tos(), uint16, len);
 709         if (str->buffer == NULL) {
 710                 smb_panic("init_unistr2: malloc fail");
 711                 return;
 712         }
 713
 714         /* Ensure len is the length in *bytes* */
 715         len *= sizeof(uint16);
 716
 717         /*
 718          * The UNISTR2 must be initialized !!!
 719          * jfm, 7/7/2001.
 720          */
 721         if (buf) {
 722                 rpcstr_push((char *)str->buffer, buf, len, STR_TERMINATE);
 723                 num_chars = strlen_w(str->buffer);
 724                 if (flags == UNI_STR_TERMINATE || flags == UNI_MAXLEN_TERMINATE) {
 725                         num_chars++;
 726                 }
 727                 if ( flags == UNI_STR_DBLTERMINATE )
 728                         num_chars += 2;
 729         }
 730
 731         str->uni_max_len = num_chars;
 732         str->offset = 0;
 733         str->uni_str_len = num_chars;
 734         if ( num_chars && ((flags == UNI_MAXLEN_TERMINATE) || (flags == UNI_BROKEN_NON_NULL)) )
 735                 str->uni_max_len++;
 736 }
 737
 738 /*******************************************************************
 739  Inits a UNISTR4 structure.
 740 ********************************************************************/
 741
 742 void init_unistr4(UNISTR4 *uni4, const char *buf, enum unistr2_term_codes flags)
 743 {
 744         uni4->string = TALLOC_P( talloc_tos(), UNISTR2 );
 745         if (!uni4->string) {
 746                 smb_panic("init_unistr4: talloc fail");
 747                 return;
 748         }
 749         init_unistr2( uni4->string, buf, flags );
 750
 751         uni4->length = 2 * (uni4->string->uni_str_len);
 752         uni4->size   = 2 * (uni4->string->uni_max_len);
 753 }
 754
 755 void init_unistr4_w( TALLOC_CTX *ctx, UNISTR4 *uni4, const smb_ucs2_t *buf )
 756 {
 757         uni4->string = TALLOC_P( ctx, UNISTR2 );
 758         if (!uni4->string) {
 759                 smb_panic("init_unistr4_w: talloc fail");
 760                 return;
 761         }
 762         init_unistr2_w( ctx, uni4->string, buf );
 763
 764         uni4->length = 2 * (uni4->string->uni_str_len);
 765         uni4->size   = 2 * (uni4->string->uni_max_len);
 766 }
 767
 768 /**
 769  *  Inits a UNISTR2 structure.
 770  *  @param  ctx talloc context to allocate string on
 771  *  @param  str pointer to string to create
 772  *  @param  buf UCS2 null-terminated buffer to init from
 773 */
 774
 775 void init_unistr2_w(TALLOC_CTX *ctx, UNISTR2 *str, const smb_ucs2_t *buf)
 776 {
 777         uint32 len = buf ? strlen_w(buf) : 0;
 778
 779         ZERO_STRUCTP(str);
 780
 781         /* set up string lengths. */
 782         str->uni_max_len = len;
 783         str->offset = 0;
 784         str->uni_str_len = len;
 785
 786         if (len + 1) {
 787                 str->buffer = TALLOC_ZERO_ARRAY(ctx, uint16, len + 1);
 788                 if (str->buffer == NULL) {
 789                         smb_panic("init_unistr2_w: talloc fail");
 790                         return;
 791                 }
 792         } else {
 793                 str->buffer = NULL;
 794         }
 795
 796         /*
 797          * don't move this test above ! The UNISTR2 must be initialized !!!
 798          * jfm, 7/7/2001.
 799          */
 800         if (buf==NULL)
 801                 return;
 802
 803         /* Yes, this is a strncpy( foo, bar, strlen(bar)) - but as
 804            long as the buffer above is talloc()ed correctly then this
 805            is the correct thing to do */
 806         if (len+1) {
 807                 strncpy_w(str->buffer, buf, len + 1);
 808         }
 809 }
 810
 811 /*******************************************************************
 812  Inits a UNISTR2 structure from a UNISTR
 813 ********************************************************************/
 814
 815 void init_unistr2_from_unistr(TALLOC_CTX *ctx, UNISTR2 *to, const UNISTR *from)
 816 {
 817         uint32 i;
 818
 819         /* the destination UNISTR2 should never be NULL.
 820            if it is it is a programming error */
 821
 822         /* if the source UNISTR is NULL, then zero out
 823            the destination string and return */
 824         ZERO_STRUCTP (to);
 825         if ((from == NULL) || (from->buffer == NULL))
 826                 return;
 827
 828         /* get the length; UNISTR must be NULL terminated */
 829         i = 0;
 830         while ((from->buffer)[i]!='\0')
 831                 i++;
 832         i++;    /* one more to catch the terminating NULL */
 833                 /* is this necessary -- jerry?  I need to think */
 834
 835         /* set up string lengths; uni_max_len is set to i+1
 836            because we need to account for the final NULL termination */
 837         to->uni_max_len = i;
 838         to->offset = 0;
 839         to->uni_str_len = i;
 840
 841         /* allocate the space and copy the string buffer */
 842         if (i) {
 843                 to->buffer = TALLOC_ZERO_ARRAY(ctx, uint16, i);
 844                 if (to->buffer == NULL)
 845                         smb_panic("init_unistr2_from_unistr: talloc fail");
 846                 memcpy(to->buffer, from->buffer, i*sizeof(uint16));
 847         } else {
 848                 to->buffer = NULL;
 849         }
 850         return;
 851 }
 852
 853 /*******************************************************************
 854   Inits a UNISTR2 structure from a DATA_BLOB.
 855   The length of the data_blob must count the bytes of the buffer.
 856   Copies the blob data.
 857 ********************************************************************/
 858
 859 void init_unistr2_from_datablob(UNISTR2 *str, DATA_BLOB *blob)
 860 {
 861         /* Allocs the unistring */
 862         init_unistr2(str, NULL, UNI_FLAGS_NONE);
 863
 864         /* Sets the values */
 865         str->uni_str_len = blob->length / sizeof(uint16);
 866         str->uni_max_len = str->uni_str_len;
 867         str->offset = 0;
 868         if (blob->length) {
 869                 str->buffer = (uint16 *) memdup(blob->data, blob->length);
 870         } else {
 871                 str->buffer = NULL;
 872         }
 873         if ((str->buffer == NULL) && (blob->length > 0)) {
 874                 smb_panic("init_unistr2_from_datablob: malloc fail");
 875         }
 876 }
 877
 878 /*******************************************************************
 879  UNISTR2* are a little different in that the pointer and the UNISTR2
 880  are not necessarily read/written back to back.  So we break it up
 881  into 2 separate functions.
 882  See SPOOL_USER_1 in include/rpc_spoolss.h for an example.
 883 ********************************************************************/
 884
 885 bool prs_io_unistr2_p(const char *desc, prs_struct *ps, int depth, UNISTR2 **uni2)
 886 {
 887         uint32 data_p;
 888
 889         /* caputure the pointer value to stream */
 890
 891         data_p = *uni2 ? 0xf000baaa : 0;
 892
 893         if ( !prs_uint32("ptr", ps, depth, &data_p ))
 894                 return False;
 895
 896         /* we're done if there is no data */
 897
 898         if ( !data_p )
 899                 return True;
 900
 901         if (UNMARSHALLING(ps)) {
 902                 if ( !(*uni2 = PRS_ALLOC_MEM(ps, UNISTR2, 1)) )
 903                         return False;
 904         }
 905
 906         return True;
 907 }
 908
 909 /*******************************************************************
 910  now read/write the actual UNISTR2.  Memory for the UNISTR2 (but
 911  not UNISTR2.buffer) has been allocated previously by prs_unistr2_p()
 912 ********************************************************************/
 913
 914 bool prs_io_unistr2(const char *desc, prs_struct *ps, int depth, UNISTR2 *uni2 )
 915 {
 916         /* just return true if there is no pointer to deal with.
 917            the memory must have been previously allocated on unmarshalling
 918            by prs_unistr2_p() */
 919
 920         if ( !uni2 )
 921                 return True;
 922
 923         /* just pass off to smb_io_unstr2() passing the uni2 address as
 924            the pointer (like you would expect) */
 925
 926         return smb_io_unistr2( desc, uni2, uni2 ? 1 : 0, ps, depth );
 927 }
 928
 929 /*******************************************************************
 930  Reads or writes a UNISTR2 structure.
 931  XXXX NOTE: UNISTR2 structures need NOT be null-terminated.
 932    the uni_str_len member tells you how long the string is;
 933    the uni_max_len member tells you how large the buffer is.
 934 ********************************************************************/
 935
 936 bool smb_io_unistr2(const char *desc, UNISTR2 *uni2, uint32 buffer, prs_struct *ps, int depth)
 937 {
 938         if (uni2 == NULL)
 939                 return False;
 940
 941         if (buffer) {
 942
 943                 prs_debug(ps, depth, desc, "smb_io_unistr2");
 944                 depth++;
 945
 946                 if(!prs_align(ps))
 947                         return False;
 948
 949                 if(!prs_uint32("uni_max_len", ps, depth, &uni2->uni_max_len))
 950                         return False;
 951                 if(!prs_uint32("offset     ", ps, depth, &uni2->offset))
 952                         return False;
 953                 if(!prs_uint32("uni_str_len", ps, depth, &uni2->uni_str_len))
 954                         return False;
 955
 956                 /* buffer advanced by indicated length of string
 957                    NOT by searching for null-termination */
 958                 if(!prs_unistr2(True, "buffer     ", ps, depth, uni2))
 959                         return False;
 960
 961         } else {
 962
 963                 prs_debug(ps, depth, desc, "smb_io_unistr2 - NULL");
 964                 depth++;
 965                 memset((char *)uni2, '\0', sizeof(*uni2));
 966
 967         }
 968
 969         return True;
 970 }
 971
 972 /*******************************************************************
 973  now read/write UNISTR4
 974 ********************************************************************/
 975
 976 bool prs_unistr4(const char *desc, prs_struct *ps, int depth, UNISTR4 *uni4)
 977 {
 978         void *ptr;
 979         prs_debug(ps, depth, desc, "prs_unistr4");
 980         depth++;
 981
 982         if ( !prs_uint16("length", ps, depth, &uni4->length ))
 983                 return False;
 984         if ( !prs_uint16("size", ps, depth, &uni4->size ))
 985                 return False;
 986
 987         ptr = uni4->string;
 988
 989         if ( !prs_pointer( desc, ps, depth, &ptr, sizeof(UNISTR2), (PRS_POINTER_CAST)prs_io_unistr2 ) )
 990                 return False;
 991
 992         uni4->string = (UNISTR2 *)ptr;
 993
 994         return True;
 995 }
 996
 997 /*******************************************************************
 998  now read/write UNISTR4 header
 999 ********************************************************************/
1000
1001 bool prs_unistr4_hdr(const char *desc, prs_struct *ps, int depth, UNISTR4 *uni4)
1002 {
1003         prs_debug(ps, depth, desc, "prs_unistr4_hdr");
1004         depth++;
1005
1006         if ( !prs_uint16("length", ps, depth, &uni4->length) )
1007                 return False;
1008         if ( !prs_uint16("size", ps, depth, &uni4->size) )
1009                 return False;
1010         if ( !prs_io_unistr2_p(desc, ps, depth, &uni4->string) )
1011                 return False;
1012
1013         return True;
1014 }
1015
1016 /*******************************************************************
1017  now read/write UNISTR4 string
1018 ********************************************************************/
1019
1020 bool prs_unistr4_str(const char *desc, prs_struct *ps, int depth, UNISTR4 *uni4)
1021 {
1022         prs_debug(ps, depth, desc, "prs_unistr4_str");
1023         depth++;
1024
1025         if ( !prs_io_unistr2(desc, ps, depth, uni4->string) )
1026                 return False;
1027
1028         return True;
1029 }
1030
1031 /*******************************************************************
1032  Reads or writes a UNISTR4_ARRAY structure.
1033 ********************************************************************/
1034
1035 bool prs_unistr4_array(const char *desc, prs_struct *ps, int depth, UNISTR4_ARRAY *array )
1036 {
1037         unsigned int i;
1038
1039         prs_debug(ps, depth, desc, "prs_unistr4_array");
1040         depth++;
1041
1042         if(!prs_uint32("count", ps, depth, &array->count))
1043                 return False;
1044
1045         if (UNMARSHALLING(ps)) {
1046                 if (array->count) {
1047                         if ( !(array->strings = TALLOC_ZERO_ARRAY( talloc_tos(), UNISTR4, array->count)) )
1048                                 return False;
1049                 } else {
1050                         array->strings = NULL;
1051                 }
1052         }
1053
1054         /* write the headers and then the actual string buffer */
1055
1056         for ( i=0; i<array->count; i++ ) {
1057                 if ( !prs_unistr4_hdr( "string", ps, depth, &array->strings[i]) )
1058                         return False;
1059         }
1060
1061         for (i=0;i<array->count;i++) {
1062                 if ( !prs_unistr4_str("string", ps, depth, &array->strings[i]) )
1063                         return False;
1064         }
1065
1066         return True;
1067 }
1068
1069 /********************************************************************
1070   initialise a UNISTR_ARRAY from a char**
1071 ********************************************************************/
1072
1073 bool init_unistr4_array( UNISTR4_ARRAY *array, uint32 count, const char **strings )
1074 {
1075         unsigned int i;
1076
1077         array->count = count;
1078
1079         /* allocate memory for the array of UNISTR4 objects */
1080
1081         if (array->count) {
1082                 if ( !(array->strings = TALLOC_ZERO_ARRAY(talloc_tos(), UNISTR4, count )) )
1083                         return False;
1084         } else {
1085                 array->strings = NULL;
1086         }
1087
1088         for ( i=0; i<count; i++ )
1089                 init_unistr4( &array->strings[i], strings[i], UNI_STR_TERMINATE );
1090
1091         return True;
1092 }
1093
1094 /*******************************************************************
1095  Inits a DOM_RID structure.
1096 ********************************************************************/
1097
1098 void init_dom_rid(DOM_RID *prid, uint32 rid, uint16 type, uint32 idx)
1099 {
1100         prid->type    = type;
1101         prid->rid     = rid;
1102         prid->rid_idx = idx;
1103 }
1104
1105 /*******************************************************************
1106  Reads or writes a DOM_RID structure.
1107 ********************************************************************/
1108
1109 bool smb_io_dom_rid(const char *desc, DOM_RID *rid, prs_struct *ps, int depth)
1110 {
1111         if (rid == NULL)
1112                 return False;
1113
1114         prs_debug(ps, depth, desc, "smb_io_dom_rid");
1115         depth++;
1116
1117         if(!prs_align(ps))
1118                 return False;
1119
1120         if(!prs_uint16("type   ", ps, depth, &rid->type))
1121                 return False;
1122         if(!prs_align(ps))
1123                 return False;
1124         if(!prs_uint32("rid    ", ps, depth, &rid->rid))
1125                 return False;
1126         if(!prs_uint32("rid_idx", ps, depth, &rid->rid_idx))
1127                 return False;
1128
1129         return True;
1130 }
1131
1132 /*******************************************************************
1133  Reads or writes a DOM_RID2 structure.
1134 ********************************************************************/
1135
1136 bool smb_io_dom_rid2(const char *desc, DOM_RID2 *rid, prs_struct *ps, int depth)
1137 {
1138         if (rid == NULL)
1139                 return False;
1140
1141         prs_debug(ps, depth, desc, "smb_io_dom_rid2");
1142         depth++;
1143
1144         if(!prs_align(ps))
1145                 return False;
1146
1147         if(!prs_uint16("type   ", ps, depth, &rid->type))
1148                 return False;
1149         if(!prs_align(ps))
1150                 return False;
1151         if(!prs_uint32("rid    ", ps, depth, &rid->rid))
1152                 return False;
1153         if(!prs_uint32("rid_idx", ps, depth, &rid->rid_idx))
1154                 return False;
1155         if(!prs_uint32("unknown", ps, depth, &rid->unknown))
1156                 return False;
1157
1158         return True;
1159 }
1160
1161
1162 /*******************************************************************
1163 creates a DOM_RID3 structure.
1164 ********************************************************************/
1165
1166 void init_dom_rid3(DOM_RID3 *rid3, uint32 rid, uint8 type)
1167 {
1168     rid3->rid      = rid;
1169     rid3->type1    = type;
1170     rid3->ptr_type = 0x1; /* non-zero, basically. */
1171     rid3->type2    = 0x1;
1172     rid3->unk      = type;
1173 }
1174
1175 /*******************************************************************
1176 reads or writes a DOM_RID3 structure.
1177 ********************************************************************/
1178
1179 bool smb_io_dom_rid3(const char *desc, DOM_RID3 *rid3, prs_struct *ps, int depth)
1180 {
1181         if (rid3 == NULL)
1182                 return False;
1183
1184         prs_debug(ps, depth, desc, "smb_io_dom_rid3");
1185         depth++;
1186
1187         if(!prs_align(ps))
1188                 return False;
1189
1190         if(!prs_uint32("rid     ", ps, depth, &rid3->rid))
1191                 return False;
1192         if(!prs_uint32("type1   ", ps, depth, &rid3->type1))
1193                 return False;
1194         if(!prs_uint32("ptr_type", ps, depth, &rid3->ptr_type))
1195                 return False;
1196         if(!prs_uint32("type2   ", ps, depth, &rid3->type2))
1197                 return False;
1198         if(!prs_uint32("unk     ", ps, depth, &rid3->unk))
1199                 return False;
1200
1201         return True;
1202 }
1203
1204 /*******************************************************************
1205  Inits a DOM_RID4 structure.
1206 ********************************************************************/
1207
1208 void init_dom_rid4(DOM_RID4 *rid4, uint16 unknown, uint16 attr, uint32 rid)
1209 {
1210     rid4->unknown = unknown;
1211     rid4->attr    = attr;
1212     rid4->rid     = rid;
1213 }
1214
1215 /*******************************************************************
1216  Inits a DOM_CLNT_SRV structure.
1217 ********************************************************************/
1218
1219 void init_clnt_srv(DOM_CLNT_SRV *logcln, const char *logon_srv,
1220                    const char *comp_name)
1221 {
1222         DEBUG(5,("init_clnt_srv: %d\n", __LINE__));
1223
1224         if (logon_srv != NULL) {
1225                 logcln->undoc_buffer = 1;
1226                 init_unistr2(&logcln->uni_logon_srv, logon_srv, UNI_STR_TERMINATE);
1227         } else {
1228                 logcln->undoc_buffer = 0;
1229         }
1230
1231         if (comp_name != NULL) {
1232                 logcln->undoc_buffer2 = 1;
1233                 init_unistr2(&logcln->uni_comp_name, comp_name, UNI_STR_TERMINATE);
1234         } else {
1235                 logcln->undoc_buffer2 = 0;
1236         }
1237 }
1238
1239 /*******************************************************************
1240  Inits or writes a DOM_CLNT_SRV structure.
1241 ********************************************************************/
1242
1243 bool smb_io_clnt_srv(const char *desc, DOM_CLNT_SRV *logcln, prs_struct *ps, int depth)
1244 {
1245         if (logcln == NULL)
1246                 return False;
1247
1248         prs_debug(ps, depth, desc, "smb_io_clnt_srv");
1249         depth++;
1250
1251         if(!prs_align(ps))
1252                 return False;
1253
1254         if(!prs_uint32("undoc_buffer ", ps, depth, &logcln->undoc_buffer))
1255                 return False;
1256
1257         if (logcln->undoc_buffer != 0) {
1258                 if(!smb_io_unistr2("unistr2", &logcln->uni_logon_srv, logcln->undoc_buffer, ps, depth))
1259                         return False;
1260         }
1261
1262         if(!prs_align(ps))
1263                 return False;
1264
1265         if(!prs_uint32("undoc_buffer2", ps, depth, &logcln->undoc_buffer2))
1266                 return False;
1267
1268         if (logcln->undoc_buffer2 != 0) {
1269                 if(!smb_io_unistr2("unistr2", &logcln->uni_comp_name, logcln->undoc_buffer2, ps, depth))
1270                         return False;
1271         }
1272
1273         return True;
1274 }
1275
1276 /*******************************************************************
1277  Inits a DOM_LOG_INFO structure.
1278 ********************************************************************/
1279
1280 void init_log_info(DOM_LOG_INFO *loginfo, const char *logon_srv, const char *acct_name,
1281                 uint16 sec_chan, const char *comp_name)
1282 {
1283         DEBUG(5,("make_log_info %d\n", __LINE__));
1284
1285         loginfo->undoc_buffer = 1;
1286
1287         init_unistr2(&loginfo->uni_logon_srv, logon_srv, UNI_STR_TERMINATE);
1288         init_unistr2(&loginfo->uni_acct_name, acct_name, UNI_STR_TERMINATE);
1289
1290         loginfo->sec_chan = sec_chan;
1291
1292         init_unistr2(&loginfo->uni_comp_name, comp_name, UNI_STR_TERMINATE);
1293 }
1294
1295 /*******************************************************************
1296  Reads or writes a DOM_LOG_INFO structure.
1297 ********************************************************************/
1298
1299 bool smb_io_log_info(const char *desc, DOM_LOG_INFO *loginfo, prs_struct *ps, int depth)
1300 {
1301         if (loginfo == NULL)
1302                 return False;
1303
1304         prs_debug(ps, depth, desc, "smb_io_log_info");
1305         depth++;
1306
1307         if(!prs_align(ps))
1308                 return False;
1309
1310         if(!prs_uint32("undoc_buffer", ps, depth, &loginfo->undoc_buffer))
1311                 return False;
1312
1313         if(!smb_io_unistr2("unistr2", &loginfo->uni_logon_srv, True, ps, depth))
1314                 return False;
1315         if(!smb_io_unistr2("unistr2", &loginfo->uni_acct_name, True, ps, depth))
1316                 return False;
1317
1318         if(!prs_uint16("sec_chan", ps, depth, &loginfo->sec_chan))
1319                 return False;
1320
1321         if(!smb_io_unistr2("unistr2", &loginfo->uni_comp_name, True, ps, depth))
1322                 return False;
1323
1324         return True;
1325 }
1326
1327 /*******************************************************************
1328  Reads or writes a DOM_CHAL structure.
1329 ********************************************************************/
1330
1331 bool smb_io_chal(const char *desc, DOM_CHAL *chal, prs_struct *ps, int depth)
1332 {
1333         if (chal == NULL)
1334                 return False;
1335
1336         prs_debug(ps, depth, desc, "smb_io_chal");
1337         depth++;
1338
1339         if(!prs_uint8s (False, "data", ps, depth, chal->data, 8))
1340                 return False;
1341
1342         return True;
1343 }
1344
1345 /*******************************************************************
1346  Reads or writes a DOM_CRED structure.
1347 ********************************************************************/
1348
1349 bool smb_io_cred(const char *desc,  DOM_CRED *cred, prs_struct *ps, int depth)
1350 {
1351         if (cred == NULL)
1352                 return False;
1353
1354         prs_debug(ps, depth, desc, "smb_io_cred");
1355         depth++;
1356
1357         if(!prs_align(ps))
1358                 return False;
1359
1360         if(!smb_io_chal ("", &cred->challenge, ps, depth))
1361                 return False;
1362
1363         if(!smb_io_utime("", &cred->timestamp, ps, depth))
1364                 return False;
1365
1366         return True;
1367 }
1368
1369 /*******************************************************************
1370  Inits a DOM_CLNT_INFO2 structure.
1371 ********************************************************************/
1372
1373 void init_clnt_info2(DOM_CLNT_INFO2 *clnt,
1374                                 const char *logon_srv, const char *comp_name,
1375                                 const DOM_CRED *clnt_cred)
1376 {
1377         DEBUG(5,("make_clnt_info: %d\n", __LINE__));
1378
1379         init_clnt_srv(&clnt->login, logon_srv, comp_name);
1380
1381         if (clnt_cred != NULL) {
1382                 clnt->ptr_cred = 1;
1383                 memcpy(&clnt->cred, clnt_cred, sizeof(clnt->cred));
1384         } else {
1385                 clnt->ptr_cred = 0;
1386         }
1387 }
1388
1389 /*******************************************************************
1390  Reads or writes a DOM_CLNT_INFO2 structure.
1391 ********************************************************************/
1392
1393 bool smb_io_clnt_info2(const char *desc, DOM_CLNT_INFO2 *clnt, prs_struct *ps, int depth)
1394 {
1395         if (clnt == NULL)
1396                 return False;
1397
1398         prs_debug(ps, depth, desc, "smb_io_clnt_info2");
1399         depth++;
1400
1401         if(!prs_align(ps))
1402                 return False;
1403
1404         if(!smb_io_clnt_srv("", &clnt->login, ps, depth))
1405                 return False;
1406
1407         if(!prs_align(ps))
1408                 return False;
1409
1410         if(!prs_uint32("ptr_cred", ps, depth, &clnt->ptr_cred))
1411                 return False;
1412         if(!smb_io_cred("", &clnt->cred, ps, depth))
1413                 return False;
1414
1415         return True;
1416 }
1417
1418 /*******************************************************************
1419  Inits a DOM_CLNT_INFO structure.
1420 ********************************************************************/
1421
1422 void init_clnt_info(DOM_CLNT_INFO *clnt,
1423                 const char *logon_srv, const char *acct_name,
1424                 uint16 sec_chan, const char *comp_name,
1425                 const DOM_CRED *cred)
1426 {
1427         DEBUG(5,("make_clnt_info\n"));
1428
1429         init_log_info(&clnt->login, logon_srv, acct_name, sec_chan, comp_name);
1430         memcpy(&clnt->cred, cred, sizeof(clnt->cred));
1431 }
1432
1433 /*******************************************************************
1434  Reads or writes a DOM_CLNT_INFO structure.
1435 ********************************************************************/
1436
1437 bool smb_io_clnt_info(const char *desc,  DOM_CLNT_INFO *clnt, prs_struct *ps, int depth)
1438 {
1439         if (clnt == NULL)
1440                 return False;
1441
1442         prs_debug(ps, depth, desc, "smb_io_clnt_info");
1443         depth++;
1444
1445         if(!prs_align(ps))
1446                 return False;
1447
1448         if(!smb_io_log_info("", &clnt->login, ps, depth))
1449                 return False;
1450         if(!smb_io_cred("", &clnt->cred, ps, depth))
1451                 return False;
1452
1453         return True;
1454 }
1455
1456 /*******************************************************************
1457  Inits a DOM_LOGON_ID structure.
1458 ********************************************************************/
1459
1460 void init_logon_id(DOM_LOGON_ID *logonid, uint32 log_id_low, uint32 log_id_high)
1461 {
1462         DEBUG(5,("make_logon_id: %d\n", __LINE__));
1463
1464         logonid->low  = log_id_low;
1465         logonid->high = log_id_high;
1466 }
1467
1468 /*******************************************************************
1469  Reads or writes a DOM_LOGON_ID structure.
1470 ********************************************************************/
1471
1472 bool smb_io_logon_id(const char *desc, DOM_LOGON_ID *logonid, prs_struct *ps, int depth)
1473 {
1474         if (logonid == NULL)
1475                 return False;
1476
1477         prs_debug(ps, depth, desc, "smb_io_logon_id");
1478         depth++;
1479
1480         if(!prs_align(ps))
1481                 return False;
1482
1483         if(!prs_uint32("low ", ps, depth, &logonid->low ))
1484                 return False;
1485         if(!prs_uint32("high", ps, depth, &logonid->high))
1486                 return False;
1487
1488         return True;
1489 }
1490
1491 /*******************************************************************
1492  Inits an OWF_INFO structure.
1493 ********************************************************************/
1494
1495 void init_owf_info(OWF_INFO *hash, const uint8 data[16])
1496 {
1497         DEBUG(5,("init_owf_info: %d\n", __LINE__));
1498
1499         if (data != NULL)
1500                 memcpy(hash->data, data, sizeof(hash->data));
1501         else
1502                 memset((char *)hash->data, '\0', sizeof(hash->data));
1503 }
1504
1505 /*******************************************************************
1506  Reads or writes an OWF_INFO structure.
1507 ********************************************************************/
1508
1509 bool smb_io_owf_info(const char *desc, OWF_INFO *hash, prs_struct *ps, int depth)
1510 {
1511         if (hash == NULL)
1512                 return False;
1513
1514         prs_debug(ps, depth, desc, "smb_io_owf_info");
1515         depth++;
1516
1517         if(!prs_align(ps))
1518                 return False;
1519
1520         if(!prs_uint8s (False, "data", ps, depth, hash->data, 16))
1521                 return False;
1522
1523         return True;
1524 }
1525
1526 /*******************************************************************
1527  Reads or writes a DOM_GID structure.
1528 ********************************************************************/
1529
1530 bool smb_io_gid(const char *desc,  DOM_GID *gid, prs_struct *ps, int depth)
1531 {
1532         if (gid == NULL)
1533                 return False;
1534
1535         prs_debug(ps, depth, desc, "smb_io_gid");
1536         depth++;
1537
1538         if(!prs_align(ps))
1539                 return False;
1540
1541         if(!prs_uint32("g_rid", ps, depth, &gid->g_rid))
1542                 return False;
1543         if(!prs_uint32("attr ", ps, depth, &gid->attr))
1544                 return False;
1545
1546         return True;
1547 }
1548
1549 /*******************************************************************
1550  Reads or writes an POLICY_HND structure.
1551 ********************************************************************/
1552
1553 bool smb_io_pol_hnd(const char *desc, POLICY_HND *pol, prs_struct *ps, int depth)
1554 {
1555         if (pol == NULL)
1556                 return False;
1557
1558         prs_debug(ps, depth, desc, "smb_io_pol_hnd");
1559         depth++;
1560
1561         if(!prs_align(ps))
1562                 return False;
1563
1564         if(UNMARSHALLING(ps))
1565                 ZERO_STRUCTP(pol);
1566
1567         if (!prs_uint32("handle_type", ps, depth, &pol->handle_type))
1568                 return False;
1569         if (!smb_io_uuid("uuid", (struct GUID*)&pol->uuid, ps, depth))
1570                 return False;
1571
1572         return True;
1573 }
1574
1575 /*******************************************************************
1576  Create a UNISTR3.
1577 ********************************************************************/
1578
1579 void init_unistr3(UNISTR3 *str, const char *buf)
1580 {
1581         if (buf == NULL) {
1582                 str->uni_str_len=0;
1583                 str->str.buffer = NULL;
1584                 return;
1585         }
1586
1587         str->uni_str_len = strlen(buf) + 1;
1588
1589         if (str->uni_str_len) {
1590                 str->str.buffer = TALLOC_ZERO_ARRAY(talloc_tos(), uint16, str->uni_str_len);
1591                 if (str->str.buffer == NULL)
1592                         smb_panic("init_unistr3: malloc fail");
1593
1594                 rpcstr_push((char *)str->str.buffer, buf, str->uni_str_len * sizeof(uint16), STR_TERMINATE);
1595         } else {
1596                 str->str.buffer = NULL;
1597         }
1598 }
1599
1600 /*******************************************************************
1601  Reads or writes a UNISTR3 structure.
1602 ********************************************************************/
1603
1604 bool smb_io_unistr3(const char *desc, UNISTR3 *name, prs_struct *ps, int depth)
1605 {
1606         if (name == NULL)
1607                 return False;
1608
1609         prs_debug(ps, depth, desc, "smb_io_unistr3");
1610         depth++;
1611
1612         if(!prs_align(ps))
1613                 return False;
1614
1615         if(!prs_uint32("uni_str_len", ps, depth, &name->uni_str_len))
1616                 return False;
1617
1618         /* we're done if there is no string */
1619
1620         if ( name->uni_str_len == 0 )
1621                 return True;
1622
1623         /* don't know if len is specified by uni_str_len member... */
1624         /* assume unicode string is unicode-null-terminated, instead */
1625
1626         if(!prs_unistr3(True, "unistr", name, ps, depth))
1627                 return False;
1628
1629         return True;
1630 }
1631
1632 /*******************************************************************
1633  Stream a uint64_struct
1634  ********************************************************************/
1635 bool prs_uint64(const char *name, prs_struct *ps, int depth, uint64 *data64)
1636 {
1637         if (UNMARSHALLING(ps)) {
1638                 uint32 high, low;
1639
1640                 if (!prs_uint32(name, ps, depth+1, &low))
1641                         return False;
1642
1643                 if (!prs_uint32(name, ps, depth+1, &high))
1644                         return False;
1645
1646                 *data64 = ((uint64_t)high << 32) + low;
1647
1648                 return True;
1649         } else {
1650                 uint32 high = (*data64) >> 32, low = (*data64) & 0xFFFFFFFF;
1651                 return prs_uint32(name, ps, depth+1, &low) &&
1652                            prs_uint32(name, ps, depth+1, &high);
1653         }
1654 }
1655
1656 /*******************************************************************
1657 reads or writes a BUFHDR2 structure.
1658 ********************************************************************/
1659 bool smb_io_bufhdr2(const char *desc, BUFHDR2 *hdr, prs_struct *ps, int depth)
1660 {
1661         prs_debug(ps, depth, desc, "smb_io_bufhdr2");
1662         depth++;
1663
1664         if (!prs_align(ps))
1665                 return False;
1666         if (!prs_uint32("info_level", ps, depth, &(hdr->info_level)))
1667                 return False;
1668         if (!prs_uint32("length    ", ps, depth, &(hdr->length    )))
1669                 return False;
1670         if (!prs_uint32("buffer    ", ps, depth, &(hdr->buffer    )))
1671                 return False;
1672
1673         return True;
1674 }
1675
1676 /*******************************************************************
1677 reads or writes a BUFHDR4 structure.
1678 ********************************************************************/
1679 bool smb_io_bufhdr4(const char *desc, BUFHDR4 *hdr, prs_struct *ps, int depth)
1680 {
1681         prs_debug(ps, depth, desc, "smb_io_bufhdr4");
1682         depth++;
1683
1684         if (!prs_align(ps))
1685                 return False;
1686         if (!prs_uint32("size", ps, depth, &hdr->size))
1687                 return False;
1688         if (!prs_uint32("buffer", ps, depth, &hdr->buffer))
1689                 return False;
1690
1691         return True;
1692 }
1693
1694 /*******************************************************************
1695 reads or writes a RPC_DATA_BLOB structure.
1696 ********************************************************************/
1697
1698 bool smb_io_rpc_blob(const char *desc, RPC_DATA_BLOB *blob, prs_struct *ps, int depth)
1699 {
1700         prs_debug(ps, depth, desc, "smb_io_rpc_blob");
1701         depth++;
1702
1703         if (!prs_align(ps))
1704                 return False;
1705         if ( !prs_uint32("buf_len", ps, depth, &blob->buf_len) )
1706                 return False;
1707
1708         if ( blob->buf_len == 0 )
1709                 return True;
1710
1711         if (UNMARSHALLING(ps)) {
1712                 blob->buffer = PRS_ALLOC_MEM(ps, uint8, blob->buf_len);
1713                 if (!blob->buffer) {
1714                         return False;
1715                 }
1716         }
1717
1718         if ( !prs_uint8s(True, "buffer", ps, depth, blob->buffer, blob->buf_len) )
1719                 return False;
1720
1721         return True;
1722 }
1723
1724 /*******************************************************************
1725 creates a UNIHDR structure.
1726 ********************************************************************/
1727
1728 bool make_uni_hdr(UNIHDR *hdr, int len)
1729 {
1730         if (hdr == NULL)
1731         {
1732                 return False;
1733         }
1734         hdr->uni_str_len = 2 * len;
1735         hdr->uni_max_len = 2 * len;
1736         hdr->buffer      = len != 0 ? 1 : 0;
1737
1738         return True;
1739 }
1740
1741 /*******************************************************************
1742 creates a BUFHDR2 structure.
1743 ********************************************************************/
1744 bool make_bufhdr2(BUFHDR2 *hdr, uint32 info_level, uint32 length, uint32 buffer)
1745 {
1746         hdr->info_level = info_level;
1747         hdr->length     = length;
1748         hdr->buffer     = buffer;
1749
1750         return True;
1751 }
1752
1753 /*******************************************************************
1754 return the length of a UNISTR string.
1755 ********************************************************************/
1756
1757 uint32 str_len_uni(UNISTR *source)
1758 {
1759         uint32 i=0;
1760
1761         if (!source->buffer)
1762                 return 0;
1763
1764         while (source->buffer[i])
1765                 i++;
1766
1767         return i;
1768 }
1769
1770 /*******************************************************************
1771  Verifies policy handle
1772 ********************************************************************/
1773
1774 bool policy_handle_is_valid(const POLICY_HND *hnd)
1775 {
1776         POLICY_HND zero_pol;
1777
1778         ZERO_STRUCT(zero_pol);
1779         return ((memcmp(&zero_pol, hnd, sizeof(POLICY_HND)) == 0) ? false : true );
1780 }