source/smbd/nttrans.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB NT transaction handling
   4    Copyright (C) Jeremy Allison                 1994-2007
   5    Copyright (C) Stefan (metze) Metzmacher      2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22
  23 extern int max_send;
  24 extern enum protocol_types Protocol;
  25 extern struct current_user current_user;
  26
  27 static const char *known_nt_pipes[] = {
  28         "\\LANMAN",
  29         "\\srvsvc",
  30         "\\samr",
  31         "\\wkssvc",
  32         "\\NETLOGON",
  33         "\\ntlsa",
  34         "\\ntsvcs",
  35         "\\lsass",
  36         "\\lsarpc",
  37         "\\winreg",
  38         "\\initshutdown",
  39         "\\spoolss",
  40         "\\netdfs",
  41         "\\rpcecho",
  42         "\\svcctl",
  43         "\\eventlog",
  44         "\\unixinfo",
  45         NULL
  46 };
  47
  48 static char *nttrans_realloc(char **ptr, size_t size)
  49 {
  50         if (ptr==NULL) {
  51                 smb_panic("nttrans_realloc() called with NULL ptr");
  52         }
  53
  54         *ptr = (char *)SMB_REALLOC(*ptr, size);
  55         if(*ptr == NULL) {
  56                 return NULL;
  57         }
  58         memset(*ptr,'\0',size);
  59         return *ptr;
  60 }
  61
  62 /****************************************************************************
  63  Send the required number of replies back.
  64  We assume all fields other than the data fields are
  65  set correctly for the type of call.
  66  HACK ! Always assumes smb_setup field is zero.
  67 ****************************************************************************/
  68
  69 void send_nt_replies(struct smb_request *req, NTSTATUS nt_error,
  70                      char *params, int paramsize,
  71                      char *pdata, int datasize)
  72 {
  73         int data_to_send = datasize;
  74         int params_to_send = paramsize;
  75         int useable_space;
  76         char *pp = params;
  77         char *pd = pdata;
  78         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  79         int alignment_offset = 3;
  80         int data_alignment_offset = 0;
  81
  82         /*
  83          * If there genuinely are no parameters or data to send just send
  84          * the empty packet.
  85          */
  86
  87         if(params_to_send == 0 && data_to_send == 0) {
  88                 reply_outbuf(req, 18, 0);
  89                 show_msg((char *)req->outbuf);
  90                 return;
  91         }
  92
  93         /*
  94          * When sending params and data ensure that both are nicely aligned.
  95          * Only do this alignment when there is also data to send - else
  96          * can cause NT redirector problems.
  97          */
  98
  99         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
 100                 data_alignment_offset = 4 - (params_to_send % 4);
 101         }
 102
 103         /*
 104          * Space is bufsize minus Netbios over TCP header minus SMB header.
 105          * The alignment_offset is to align the param bytes on a four byte
 106          * boundary (2 bytes for data len, one byte pad).
 107          * NT needs this to work correctly.
 108          */
 109
 110         useable_space = max_send - (smb_size
 111                                     + 2 * 18 /* wct */
 112                                     + alignment_offset
 113                                     + data_alignment_offset);
 114
 115         /*
 116          * useable_space can never be more than max_send minus the
 117          * alignment offset.
 118          */
 119
 120         useable_space = MIN(useable_space,
 121                                 max_send - (alignment_offset+data_alignment_offset));
 122
 123
 124         while (params_to_send || data_to_send) {
 125
 126                 /*
 127                  * Calculate whether we will totally or partially fill this packet.
 128                  */
 129
 130                 total_sent_thistime = params_to_send + data_to_send +
 131                                         alignment_offset + data_alignment_offset;
 132
 133                 /*
 134                  * We can never send more than useable_space.
 135                  */
 136
 137                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 138
 139                 reply_outbuf(req, 18, total_sent_thistime);
 140
 141                 /*
 142                  * Set total params and data to be sent.
 143                  */
 144
 145                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 146                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 147
 148                 /*
 149                  * Calculate how many parameters and data we can fit into
 150                  * this packet. Parameters get precedence.
 151                  */
 152
 153                 params_sent_thistime = MIN(params_to_send,useable_space);
 154                 data_sent_thistime = useable_space - params_sent_thistime;
 155                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 156
 157                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 158                       params_sent_thistime);
 159
 160                 if(params_sent_thistime == 0) {
 161                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 162                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 163                 } else {
 164                         /*
 165                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 166                          * parameter bytes, however the first 4 bytes of outbuf are
 167                          * the Netbios over TCP header. Thus use smb_base() to subtract
 168                          * them from the calculation.
 169                          */
 170
 171                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 172                               ((smb_buf(req->outbuf)+alignment_offset)
 173                                - smb_base(req->outbuf)));
 174                         /*
 175                          * Absolute displacement of param bytes sent in this packet.
 176                          */
 177
 178                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 179                               pp - params);
 180                 }
 181
 182                 /*
 183                  * Deal with the data portion.
 184                  */
 185
 186                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 187
 188                 if(data_sent_thistime == 0) {
 189                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 190                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 191                 } else {
 192                         /*
 193                          * The offset of the data bytes is the offset of the
 194                          * parameter bytes plus the number of parameters being sent this time.
 195                          */
 196
 197                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 198                               ((smb_buf(req->outbuf)+alignment_offset) -
 199                                smb_base(req->outbuf))
 200                               + params_sent_thistime + data_alignment_offset);
 201                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 202                 }
 203
 204                 /*
 205                  * Copy the param bytes into the packet.
 206                  */
 207
 208                 if(params_sent_thistime) {
 209                         if (alignment_offset != 0) {
 210                                 memset(smb_buf(req->outbuf), 0,
 211                                        alignment_offset);
 212                         }
 213                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 214                                params_sent_thistime);
 215                 }
 216
 217                 /*
 218                  * Copy in the data bytes
 219                  */
 220
 221                 if(data_sent_thistime) {
 222                         if (data_alignment_offset != 0) {
 223                                 memset((smb_buf(req->outbuf)+alignment_offset+
 224                                         params_sent_thistime), 0,
 225                                        data_alignment_offset);
 226                         }
 227                         memcpy(smb_buf(req->outbuf)+alignment_offset
 228                                +params_sent_thistime+data_alignment_offset,
 229                                pd,data_sent_thistime);
 230                 }
 231
 232                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 233                         params_sent_thistime, data_sent_thistime, useable_space));
 234                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 235                         params_to_send, data_to_send, paramsize, datasize));
 236
 237                 if (NT_STATUS_V(nt_error)) {
 238                         error_packet_set((char *)req->outbuf,
 239                                          0, 0, nt_error,
 240                                          __LINE__,__FILE__);
 241                 }
 242
 243                 /* Send the packet */
 244                 show_msg((char *)req->outbuf);
 245                 if (!send_smb(smbd_server_fd(),(char *)req->outbuf)) {
 246                         exit_server_cleanly("send_nt_replies: send_smb failed.");
 247                 }
 248
 249                 TALLOC_FREE(req->outbuf);
 250
 251                 pp += params_sent_thistime;
 252                 pd += data_sent_thistime;
 253
 254                 params_to_send -= params_sent_thistime;
 255                 data_to_send -= data_sent_thistime;
 256
 257                 /*
 258                  * Sanity check
 259                  */
 260
 261                 if(params_to_send < 0 || data_to_send < 0) {
 262                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 263                                 params_to_send, data_to_send));
 264                         return;
 265                 }
 266         }
 267 }
 268
 269 /****************************************************************************
 270  Is it an NTFS stream name ?
 271 ****************************************************************************/
 272
 273 bool is_ntfs_stream_name(const char *fname)
 274 {
 275         if (lp_posix_pathnames()) {
 276                 return False;
 277         }
 278         return (strchr_m(fname, ':') != NULL) ? True : False;
 279 }
 280
 281 struct case_semantics_state {
 282         connection_struct *conn;
 283         bool case_sensitive;
 284         bool case_preserve;
 285         bool short_case_preserve;
 286 };
 287
 288 /****************************************************************************
 289  Restore case semantics.
 290 ****************************************************************************/
 291 static int restore_case_semantics(struct case_semantics_state *state)
 292 {
 293         state->conn->case_sensitive = state->case_sensitive;
 294         state->conn->case_preserve = state->case_preserve;
 295         state->conn->short_case_preserve = state->short_case_preserve;
 296         return 0;
 297 }
 298
 299 /****************************************************************************
 300  Save case semantics.
 301 ****************************************************************************/
 302 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 303                                                              connection_struct *conn)
 304 {
 305         struct case_semantics_state *result;
 306
 307         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 308                 DEBUG(0, ("talloc failed\n"));
 309                 return NULL;
 310         }
 311
 312         result->conn = conn;
 313         result->case_sensitive = conn->case_sensitive;
 314         result->case_preserve = conn->case_preserve;
 315         result->short_case_preserve = conn->short_case_preserve;
 316
 317         /* Set to POSIX. */
 318         conn->case_sensitive = True;
 319         conn->case_preserve = True;
 320         conn->short_case_preserve = True;
 321
 322         talloc_set_destructor(result, restore_case_semantics);
 323
 324         return result;
 325 }
 326
 327 /****************************************************************************
 328  Reply to an NT create and X call on a pipe
 329 ****************************************************************************/
 330
 331 static void nt_open_pipe(char *fname, connection_struct *conn,
 332                          struct smb_request *req, int *ppnum)
 333 {
 334         smb_np_struct *p = NULL;
 335         int i;
 336
 337         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 338
 339         /* See if it is one we want to handle. */
 340
 341         if (lp_disable_spoolss() && strequal(fname, "\\spoolss")) {
 342                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 343                                 ERRDOS, ERRbadpipe);
 344                 return;
 345         }
 346
 347         for( i = 0; known_nt_pipes[i]; i++ ) {
 348                 if( strequal(fname,known_nt_pipes[i])) {
 349                         break;
 350                 }
 351         }
 352
 353         if ( known_nt_pipes[i] == NULL ) {
 354                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 355                                 ERRDOS, ERRbadpipe);
 356                 return;
 357         }
 358
 359         /* Strip \\ off the name. */
 360         fname++;
 361
 362         DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
 363
 364         p = open_rpc_pipe_p(fname, conn, req->vuid);
 365         if (!p) {
 366                 reply_doserror(req, ERRSRV, ERRnofids);
 367                 return;
 368         }
 369
 370         /* TODO: Add pipe to db */
 371
 372         if ( !store_pipe_opendb( p ) ) {
 373                 DEBUG(3,("nt_open_pipe: failed to store %s pipe open.\n", fname));
 374         }
 375
 376         *ppnum = p->pnum;
 377         return;
 378 }
 379
 380 /****************************************************************************
 381  Reply to an NT create and X call for pipes.
 382 ****************************************************************************/
 383
 384 static void do_ntcreate_pipe_open(connection_struct *conn,
 385                                   struct smb_request *req)
 386 {
 387         char *fname = NULL;
 388         int pnum = -1;
 389         char *p = NULL;
 390         uint32 flags = IVAL(req->inbuf,smb_ntcreate_Flags);
 391         TALLOC_CTX *ctx = talloc_tos();
 392
 393         srvstr_pull_buf_talloc(ctx, (char *)req->inbuf, req->flags2, &fname,
 394                         smb_buf(req->inbuf), STR_TERMINATE);
 395
 396         if (!fname) {
 397                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 398                                 ERRDOS, ERRbadpipe);
 399                 return;
 400         }
 401         nt_open_pipe(fname, conn, req, &pnum);
 402
 403         if (req->outbuf) {
 404                 /* error reply */
 405                 return;
 406         }
 407
 408         /*
 409          * Deal with pipe return.
 410          */
 411
 412         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 413                 /* This is very strange. We
 414                  * return 50 words, but only set
 415                  * the wcnt to 42 ? It's definately
 416                  * what happens on the wire....
 417                  */
 418                 reply_outbuf(req, 50, 0);
 419                 SCVAL(req->outbuf,smb_wct,42);
 420         } else {
 421                 reply_outbuf(req, 34, 0);
 422         }
 423
 424         p = (char *)req->outbuf + smb_vwv2;
 425         p++;
 426         SSVAL(p,0,pnum);
 427         p += 2;
 428         SIVAL(p,0,FILE_WAS_OPENED);
 429         p += 4;
 430         p += 32;
 431         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 432         p += 20;
 433         /* File type. */
 434         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 435         /* Device state. */
 436         SSVAL(p,2, 0x5FF); /* ? */
 437         p += 4;
 438
 439         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 440                 p += 25;
 441                 SIVAL(p,0,FILE_GENERIC_ALL);
 442                 /*
 443                  * For pipes W2K3 seems to return
 444                  * 0x12019B next.
 445                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 446                  */
 447                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 448         }
 449
 450         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 451
 452         chain_reply(req);
 453 }
 454
 455 static NTSTATUS create_file(connection_struct *conn,
 456                             struct smb_request *req,
 457                             uint16_t root_dir_fid,
 458                             char *fname,
 459                             uint32_t flags,
 460                             uint32_t access_mask,
 461                             uint32_t file_attributes,
 462                             uint32_t share_access,
 463                             uint32_t create_disposition,
 464                             uint32_t create_options,
 465                             int oplock_request,
 466                             SMB_BIG_UINT allocation_size,
 467                             struct security_descriptor *sd,
 468                             struct ea_list *ea_list,
 469
 470                             files_struct **result,
 471                             int *pinfo,
 472                             uint8_t *poplock_granted,
 473                             SMB_STRUCT_STAT *psbuf)
 474 {
 475         TALLOC_CTX *frame = talloc_stackframe();
 476         struct case_semantics_state *case_state = NULL;
 477         SMB_STRUCT_STAT sbuf;
 478         int info = FILE_WAS_OPENED;
 479         files_struct *fsp = NULL;
 480         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 481         NTSTATUS status;
 482
 483         DEBUG(10,("create_file: flags = 0x%x, access_mask = 0x%x "
 484                   "file_attributes = 0x%x, share_access = 0x%x, "
 485                   "create_disposition = 0x%x create_options = 0x%x "
 486                   "root_dir_fid = 0x%x, ea_list = 0x%x, sd = 0x%x, "
 487                   "fname = %s\n",
 488                   (unsigned int)flags,
 489                   (unsigned int)access_mask,
 490                   (unsigned int)file_attributes,
 491                   (unsigned int)share_access,
 492                   (unsigned int)create_disposition,
 493                   (unsigned int)create_options,
 494                   (unsigned int)root_dir_fid,
 495                   (unsigned int)ea_list,
 496                   (unsigned int)sd,
 497                   fname));
 498
 499         SET_STAT_INVALID(sbuf);
 500
 501         if (create_options & FILE_OPEN_BY_FILE_ID) {
 502                 status = NT_STATUS_NOT_SUPPORTED;
 503                 goto fail;
 504         }
 505
 506         /*
 507          * Get the file name.
 508          */
 509
 510         if (root_dir_fid != 0) {
 511                 /*
 512                  * This filename is relative to a directory fid.
 513                  */
 514                 char *parent_fname = NULL;
 515                 files_struct *dir_fsp = file_fsp(root_dir_fid);
 516
 517                 if (dir_fsp == NULL) {
 518                         status = NT_STATUS_INVALID_HANDLE;
 519                         goto fail;
 520                 }
 521
 522                 if (!dir_fsp->is_directory) {
 523
 524                         /*
 525                          * Check to see if this is a mac fork of some kind.
 526                          */
 527
 528                         if (is_ntfs_stream_name(fname)) {
 529                                 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
 530                                 goto fail;
 531                         }
 532
 533                         /*
 534                           we need to handle the case when we get a
 535                           relative open relative to a file and the
 536                           pathname is blank - this is a reopen!
 537                           (hint from demyn plantenberg)
 538                         */
 539
 540                         status = NT_STATUS_INVALID_HANDLE;
 541                         goto fail;
 542                 }
 543
 544                 if (ISDOT(dir_fsp->fsp_name)) {
 545                         /*
 546                          * We're at the toplevel dir, the final file name
 547                          * must not contain ./, as this is filtered out
 548                          * normally by srvstr_get_path and unix_convert
 549                          * explicitly rejects paths containing ./.
 550                          */
 551                         parent_fname = talloc_strdup(talloc_tos(), "");
 552                         if (parent_fname == NULL) {
 553                                 status = NT_STATUS_NO_MEMORY;
 554                                 goto fail;
 555                         }
 556                 } else {
 557                         size_t dir_name_len = strlen(dir_fsp->fsp_name);
 558
 559                         /*
 560                          * Copy in the base directory name.
 561                          */
 562
 563                         parent_fname = TALLOC_ARRAY(talloc_tos(), char,
 564                                                     dir_name_len+2);
 565                         if (parent_fname == NULL) {
 566                                 status = NT_STATUS_NO_MEMORY;
 567                                 goto fail;
 568                         }
 569                         memcpy(parent_fname, dir_fsp->fsp_name,
 570                                dir_name_len+1);
 571
 572                         /*
 573                          * Ensure it ends in a '/'.
 574                          * We used TALLOC_SIZE +2 to add space for the '/'.
 575                          */
 576
 577                         if(dir_name_len
 578                            && (parent_fname[dir_name_len-1] != '\\')
 579                            && (parent_fname[dir_name_len-1] != '/')) {
 580                                 parent_fname[dir_name_len] = '/';
 581                                 parent_fname[dir_name_len+1] = '\0';
 582                         }
 583                 }
 584
 585                 fname = talloc_asprintf(talloc_tos(), "%s%s", parent_fname,
 586                                         fname);
 587                 if (fname == NULL) {
 588                         status = NT_STATUS_NO_MEMORY;
 589                         goto fail;
 590                 }
 591         } else {
 592                 /*
 593                  * Check to see if this is a mac fork of some kind.
 594                  */
 595
 596                 if (is_ntfs_stream_name(fname)) {
 597                         enum FAKE_FILE_TYPE fake_file_type;
 598
 599                         fake_file_type = is_fake_file(fname);
 600
 601                         if (fake_file_type == FAKE_FILE_TYPE_NONE) {
 602                                 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
 603                         }
 604
 605                         /*
 606                          * Here we go! support for changing the disk quotas
 607                          * --metze
 608                          *
 609                          * We need to fake up to open this MAGIC QUOTA file
 610                          * and return a valid FID.
 611                          *
 612                          * w2k close this file directly after openening xp
 613                          * also tries a QUERY_FILE_INFO on the file and then
 614                          * close it
 615                          */
 616                         status = open_fake_file(conn, fake_file_type, fname,
 617                                                 access_mask, &fsp);
 618                         if (!NT_STATUS_IS_OK(status)) {
 619                                 goto fail;
 620                         }
 621
 622                         goto done;
 623                 }
 624         }
 625
 626         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 627         if (oplock_request) {
 628                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 629                         ? BATCH_OPLOCK : 0;
 630         }
 631
 632         status = resolve_dfspath(
 633                 talloc_tos(), conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
 634                 fname, &fname);
 635
 636         if (!NT_STATUS_IS_OK(status)) {
 637                 /*
 638                  * For PATH_NOT_COVERED we had
 639                  * reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
 640                  *                 ERRSRV, ERRbadpath);
 641                  * Need to fix in callers
 642                  */
 643                 goto fail;
 644         }
 645
 646         /*
 647          * Ordinary file or directory.
 648          */
 649
 650         /*
 651          * Check if POSIX semantics are wanted.
 652          */
 653
 654         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 655                 case_state = set_posix_case_semantics(talloc_tos(), conn);
 656                 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 657         }
 658
 659         status = unix_convert(talloc_tos(), conn, fname, False, &fname, NULL,
 660                               &sbuf);
 661         if (!NT_STATUS_IS_OK(status)) {
 662                 goto fail;
 663         }
 664
 665         /* All file access must go through check_name() */
 666
 667         status = check_name(conn, fname);
 668         if (!NT_STATUS_IS_OK(status)) {
 669                 goto fail;
 670         }
 671
 672         /* This is the correct thing to do (check every time) but can_delete
 673          * is expensive (it may have to read the parent directory
 674          * permissions). So for now we're not doing it unless we have a strong
 675          * hint the client is really going to delete this file. If the client
 676          * is forcing FILE_CREATE let the filesystem take care of the
 677          * permissions. */
 678
 679         /* Setting FILE_SHARE_DELETE is the hint. */
 680
 681         if (lp_acl_check_permissions(SNUM(conn))
 682             && (create_disposition != FILE_CREATE)
 683             && (share_access & FILE_SHARE_DELETE)
 684             && (access_mask & DELETE_ACCESS)
 685             && (((dos_mode(conn, fname, &sbuf) & FILE_ATTRIBUTE_READONLY)
 686                  && !lp_delete_readonly(SNUM(conn)))
 687                 || !can_delete_file_in_directory(conn, fname))) {
 688                 status = NT_STATUS_ACCESS_DENIED;
 689                 goto fail;
 690         }
 691
 692 #if 0
 693         /* We need to support SeSecurityPrivilege for this. */
 694         if ((access_mask & SEC_RIGHT_SYSTEM_SECURITY) &&
 695                         !user_has_privileges(current_user.nt_user_token,
 696                                 &se_security)) {
 697                 status = NT_STATUS_PRIVILEGE_NOT_HELD;
 698                 goto fail;
 699         }
 700 #endif
 701
 702         /*
 703          * If it's a request for a directory open, deal with it separately.
 704          */
 705
 706         if (create_options & FILE_DIRECTORY_FILE) {
 707
 708                 /* Can't open a temp directory. IFS kit test. */
 709                 if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
 710                         status = NT_STATUS_INVALID_PARAMETER;
 711                         goto fail;
 712                 }
 713
 714                 /*
 715                  * We will get a create directory here if the Win32
 716                  * app specified a security descriptor in the
 717                  * CreateDirectory() call.
 718                  */
 719
 720                 oplock_request = 0;
 721                 status = open_directory(
 722                         conn, req, fname, &sbuf, access_mask, share_access,
 723                         create_disposition, create_options, file_attributes,
 724                         &info, &fsp);
 725         } else {
 726
 727                 /*
 728                  * Ordinary file case.
 729                  */
 730
 731                 status = open_file_ntcreate(
 732                         conn, req, fname, &sbuf, access_mask, share_access,
 733                         create_disposition, create_options, file_attributes,
 734                         oplock_request, &info, &fsp);
 735
 736                 if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) {
 737
 738                         /*
 739                          * Fail the open if it was explicitly a non-directory
 740                          * file.
 741                          */
 742
 743                         if (create_options & FILE_NON_DIRECTORY_FILE) {
 744                                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
 745                                 goto fail;
 746                         }
 747
 748                         oplock_request = 0;
 749                         status = open_directory(
 750                                 conn, req, fname, &sbuf, access_mask,
 751                                 share_access, create_disposition,
 752                                 create_options, file_attributes,
 753                                 &info, &fsp);
 754                 }
 755         }
 756
 757         TALLOC_FREE(case_state);
 758
 759         if (!NT_STATUS_IS_OK(status)) {
 760                 goto fail;
 761         }
 762
 763         /*
 764          * According to the MS documentation, the only time the security
 765          * descriptor is applied to the opened file is iff we *created* the
 766          * file; an existing file stays the same.
 767          *
 768          * Also, it seems (from observation) that you can open the file with
 769          * any access mask but you can still write the sd. We need to override
 770          * the granted access before we call set_sd
 771          * Patch for bug #2242 from Tom Lackemann <cessnatomny@yahoo.com>.
 772          */
 773
 774         if ((sd != NULL) && (info == FILE_WAS_CREATED)
 775             && lp_nt_acl_support(SNUM(conn))) {
 776
 777                 uint32_t sec_info_sent = ALL_SECURITY_INFORMATION;
 778                 uint32_t saved_access_mask = fsp->access_mask;
 779
 780                 if (sd->owner_sid==0) {
 781                         sec_info_sent &= ~OWNER_SECURITY_INFORMATION;
 782                 }
 783                 if (sd->group_sid==0) {
 784                         sec_info_sent &= ~GROUP_SECURITY_INFORMATION;
 785                 }
 786                 if (sd->sacl==0) {
 787                         sec_info_sent &= ~SACL_SECURITY_INFORMATION;
 788                 }
 789                 if (sd->dacl==0) {
 790                         sec_info_sent &= ~DACL_SECURITY_INFORMATION;
 791                 }
 792
 793                 fsp->access_mask = FILE_GENERIC_ALL;
 794
 795                 status = SMB_VFS_FSET_NT_ACL(
 796                         fsp, fsp->fh->fd, sec_info_sent, sd);
 797
 798                 fsp->access_mask = saved_access_mask;
 799
 800                 if (!NT_STATUS_IS_OK(status)) {
 801                         goto fail;
 802                 }
 803         }
 804
 805         if ((ea_list != NULL) && (info == FILE_WAS_CREATED)) {
 806                 status = set_ea(conn, fsp, fname, ea_list);
 807                 if (!NT_STATUS_IS_OK(status)) {
 808                         goto fail;
 809                 }
 810         }
 811
 812         if (!fsp->is_directory && S_ISDIR(sbuf.st_mode)) {
 813                 status = NT_STATUS_ACCESS_DENIED;
 814                 goto fail;
 815         }
 816
 817         /* Save the requested allocation size. */
 818         if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) {
 819                 if (allocation_size
 820                     && (allocation_size > sbuf.st_size)) {
 821                         fsp->initial_allocation_size = smb_roundup(
 822                                 fsp->conn, allocation_size);
 823                         if (fsp->is_directory) {
 824                                 /* Can't set allocation size on a directory. */
 825                                 status = NT_STATUS_ACCESS_DENIED;
 826                                 goto fail;
 827                         }
 828                         if (vfs_allocate_file_space(
 829                                     fsp, fsp->initial_allocation_size) == -1) {
 830                                 status = NT_STATUS_DISK_FULL;
 831                                 goto fail;
 832                         }
 833                 } else {
 834                         fsp->initial_allocation_size = smb_roundup(
 835                                 fsp->conn, (SMB_BIG_UINT)sbuf.st_size);
 836                 }
 837         }
 838
 839         /*
 840          * If the caller set the extended oplock request bit
 841          * and we granted one (by whatever means) - set the
 842          * correct bit for extended oplock reply.
 843          */
 844
 845         if (oplock_request &&
 846             (lp_fake_oplocks(SNUM(conn))
 847              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 848
 849                 /*
 850                  * Exclusive oplock granted
 851                  */
 852
 853                 if (flags & REQUEST_BATCH_OPLOCK) {
 854                         oplock_granted = BATCH_OPLOCK_RETURN;
 855                 } else {
 856                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 857                 }
 858         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 859                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 860         } else {
 861                 oplock_granted = NO_OPLOCK_RETURN;
 862         }
 863
 864  done:
 865         DEBUG(10, ("create_file: info=%d, oplock_granted=%d\n",
 866                    info, (int)oplock_granted));
 867
 868         *result = fsp;
 869         *pinfo = info;
 870         *poplock_granted = oplock_granted;
 871         *psbuf = sbuf;
 872         TALLOC_FREE(frame);
 873         return NT_STATUS_OK;
 874
 875  fail:
 876         DEBUG(10, ("create_file: %s\n", nt_errstr(status)));
 877
 878         if (fsp != NULL) {
 879                 close_file(fsp, ERROR_CLOSE);
 880                 fsp = NULL;
 881         }
 882         TALLOC_FREE(frame);
 883         return status;
 884 }
 885
 886 /****************************************************************************
 887  Reply to an NT create and X call.
 888 ****************************************************************************/
 889
 890 void reply_ntcreate_and_X(connection_struct *conn, struct smb_request *req)
 891 {
 892         char *fname = NULL;
 893         uint32 flags;
 894         uint32 access_mask;
 895         uint32 file_attributes;
 896         uint32 share_access;
 897         uint32 create_disposition;
 898         uint32 create_options;
 899         uint16 root_dir_fid;
 900         SMB_BIG_UINT allocation_size;
 901         /* Breakout the oplock request bits so we can set the
 902            reply bits separately. */
 903         int oplock_request = 0;
 904         uint32 fattr=0;
 905         SMB_OFF_T file_len = 0;
 906         SMB_STRUCT_STAT sbuf;
 907         int info = 0;
 908         files_struct *fsp = NULL;
 909         char *p = NULL;
 910         struct timespec c_timespec;
 911         struct timespec a_timespec;
 912         struct timespec m_timespec;
 913         NTSTATUS status;
 914         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 915         TALLOC_CTX *ctx = talloc_tos();
 916
 917         START_PROFILE(SMBntcreateX);
 918
 919         if (req->wct < 24) {
 920                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 921                 return;
 922         }
 923
 924         flags = IVAL(req->inbuf,smb_ntcreate_Flags);
 925         access_mask = IVAL(req->inbuf,smb_ntcreate_DesiredAccess);
 926         file_attributes = IVAL(req->inbuf,smb_ntcreate_FileAttributes);
 927         share_access = IVAL(req->inbuf,smb_ntcreate_ShareAccess);
 928         create_disposition = IVAL(req->inbuf,smb_ntcreate_CreateDisposition);
 929         create_options = IVAL(req->inbuf,smb_ntcreate_CreateOptions);
 930         root_dir_fid = (uint16)IVAL(req->inbuf,smb_ntcreate_RootDirectoryFid);
 931
 932         allocation_size = (SMB_BIG_UINT)IVAL(req->inbuf,
 933                                              smb_ntcreate_AllocationSize);
 934 #ifdef LARGE_SMB_OFF_T
 935         allocation_size |= (((SMB_BIG_UINT)IVAL(
 936                                      req->inbuf,
 937                                      smb_ntcreate_AllocationSize + 4)) << 32);
 938 #endif
 939
 940         srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname,
 941                         smb_buf(req->inbuf), 0, STR_TERMINATE, &status);
 942
 943         if (!NT_STATUS_IS_OK(status)) {
 944                 reply_nterror(req, status);
 945                 END_PROFILE(SMBntcreateX);
 946                 return;
 947         }
 948
 949         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 950                   "file_attributes = 0x%x, share_access = 0x%x, "
 951                   "create_disposition = 0x%x create_options = 0x%x "
 952                   "root_dir_fid = 0x%x, fname = %s\n",
 953                         (unsigned int)flags,
 954                         (unsigned int)access_mask,
 955                         (unsigned int)file_attributes,
 956                         (unsigned int)share_access,
 957                         (unsigned int)create_disposition,
 958                         (unsigned int)create_options,
 959                         (unsigned int)root_dir_fid,
 960                         fname));
 961
 962         /*
 963          * If it's an IPC, use the pipe handler.
 964          */
 965
 966         if (IS_IPC(conn)) {
 967                 if (lp_nt_pipe_support()) {
 968                         do_ntcreate_pipe_open(conn, req);
 969                         END_PROFILE(SMBntcreateX);
 970                         return;
 971                 } else {
 972                         reply_doserror(req, ERRDOS, ERRnoaccess);
 973                         END_PROFILE(SMBntcreateX);
 974                         return;
 975                 }
 976         }
 977
 978         status = create_file(conn, req, root_dir_fid, fname, flags,
 979                              access_mask, file_attributes, share_access,
 980                              create_disposition, create_options,
 981                              oplock_request, allocation_size, NULL, NULL,
 982                              &fsp, &info, &oplock_granted, &sbuf);
 983
 984         if (!NT_STATUS_IS_OK(status)) {
 985                 if (open_was_deferred(req->mid)) {
 986                         /* We have re-scheduled this call, no error. */
 987                         END_PROFILE(SMBntcreateX);
 988                         return;
 989                 }
 990                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
 991                         reply_botherror(req, status, ERRDOS, ERRfilexists);
 992                 }
 993                 else {
 994                         reply_nterror(req, status);
 995                 }
 996                 END_PROFILE(SMBntcreateX);
 997                 return;
 998         }
 999
1000         file_len = sbuf.st_size;
1001         fattr = dos_mode(conn,fname,&sbuf);
1002         if (fattr == 0) {
1003                 fattr = FILE_ATTRIBUTE_NORMAL;
1004         }
1005
1006         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1007                 /* This is very strange. We
1008                  * return 50 words, but only set
1009                  * the wcnt to 42 ? It's definately
1010                  * what happens on the wire....
1011                  */
1012                 reply_outbuf(req, 50, 0);
1013                 SCVAL(req->outbuf,smb_wct,42);
1014         } else {
1015                 reply_outbuf(req, 34, 0);
1016         }
1017
1018         p = (char *)req->outbuf + smb_vwv2;
1019
1020         SCVAL(p, 0, oplock_granted);
1021
1022         p++;
1023         SSVAL(p,0,fsp->fnum);
1024         p += 2;
1025         if ((create_disposition == FILE_SUPERSEDE)
1026             && (info == FILE_WAS_OVERWRITTEN)) {
1027                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1028         } else {
1029                 SIVAL(p,0,info);
1030         }
1031         p += 4;
1032
1033         /* Create time. */
1034         c_timespec = get_create_timespec(
1035                 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1036         a_timespec = get_atimespec(&sbuf);
1037         m_timespec = get_mtimespec(&sbuf);
1038
1039         if (lp_dos_filetime_resolution(SNUM(conn))) {
1040                 dos_filetime_timespec(&c_timespec);
1041                 dos_filetime_timespec(&a_timespec);
1042                 dos_filetime_timespec(&m_timespec);
1043         }
1044
1045         put_long_date_timespec(p, c_timespec); /* create time. */
1046         p += 8;
1047         put_long_date_timespec(p, a_timespec); /* access time */
1048         p += 8;
1049         put_long_date_timespec(p, m_timespec); /* write time */
1050         p += 8;
1051         put_long_date_timespec(p, m_timespec); /* change time */
1052         p += 8;
1053         SIVAL(p,0,fattr); /* File Attributes. */
1054         p += 4;
1055         SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
1056         p += 8;
1057         SOFF_T(p,0,file_len);
1058         p += 8;
1059         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1060                 SSVAL(p,2,0x7);
1061         }
1062         p += 4;
1063         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1064
1065         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1066                 uint32 perms = 0;
1067                 p += 25;
1068                 if (fsp->is_directory
1069                     || can_write_to_file(conn, fname, &sbuf)) {
1070                         perms = FILE_GENERIC_ALL;
1071                 } else {
1072                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1073                 }
1074                 SIVAL(p,0,perms);
1075         }
1076
1077         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
1078                  fsp->fnum, fsp->fsp_name));
1079
1080         chain_reply(req);
1081         END_PROFILE(SMBntcreateX);
1082         return;
1083 }
1084
1085 /****************************************************************************
1086  Reply to a NT_TRANSACT_CREATE call to open a pipe.
1087 ****************************************************************************/
1088
1089 static void do_nt_transact_create_pipe(connection_struct *conn,
1090                                        struct smb_request *req,
1091                                        uint16 **ppsetup, uint32 setup_count,
1092                                        char **ppparams, uint32 parameter_count,
1093                                        char **ppdata, uint32 data_count)
1094 {
1095         char *fname = NULL;
1096         char *params = *ppparams;
1097         int pnum = -1;
1098         char *p = NULL;
1099         NTSTATUS status;
1100         size_t param_len;
1101         uint32 flags;
1102         TALLOC_CTX *ctx = talloc_tos();
1103
1104         /*
1105          * Ensure minimum number of parameters sent.
1106          */
1107
1108         if(parameter_count < 54) {
1109                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1110                 reply_doserror(req, ERRDOS, ERRnoaccess);
1111                 return;
1112         }
1113
1114         flags = IVAL(params,0);
1115
1116         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
1117                         parameter_count-53, STR_TERMINATE,
1118                         &status);
1119         if (!NT_STATUS_IS_OK(status)) {
1120                 reply_nterror(req, status);
1121                 return;
1122         }
1123
1124         nt_open_pipe(fname, conn, req, &pnum);
1125
1126         if (req->outbuf) {
1127                 /* Error return */
1128                 return;
1129         }
1130
1131         /* Realloc the size of parameters and data we will return */
1132         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1133                 /* Extended response is 32 more byyes. */
1134                 param_len = 101;
1135         } else {
1136                 param_len = 69;
1137         }
1138         params = nttrans_realloc(ppparams, param_len);
1139         if(params == NULL) {
1140                 reply_doserror(req, ERRDOS, ERRnomem);
1141                 return;
1142         }
1143
1144         p = params;
1145         SCVAL(p,0,NO_OPLOCK_RETURN);
1146
1147         p += 2;
1148         SSVAL(p,0,pnum);
1149         p += 2;
1150         SIVAL(p,0,FILE_WAS_OPENED);
1151         p += 8;
1152
1153         p += 32;
1154         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
1155         p += 20;
1156         /* File type. */
1157         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
1158         /* Device state. */
1159         SSVAL(p,2, 0x5FF); /* ? */
1160         p += 4;
1161
1162         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1163                 p += 25;
1164                 SIVAL(p,0,FILE_GENERIC_ALL);
1165                 /*
1166                  * For pipes W2K3 seems to return
1167                  * 0x12019B next.
1168                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
1169                  */
1170                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
1171         }
1172
1173         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
1174
1175         /* Send the required number of replies */
1176         send_nt_replies(req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1177
1178         return;
1179 }
1180
1181 /****************************************************************************
1182  Internal fn to set security descriptors.
1183 ****************************************************************************/
1184
1185 static NTSTATUS set_sd(files_struct *fsp, char *data, uint32 sd_len, uint32 security_info_sent)
1186 {
1187         prs_struct pd;
1188         SEC_DESC *psd = NULL;
1189         TALLOC_CTX *mem_ctx;
1190         NTSTATUS status;
1191
1192         if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
1193                 return NT_STATUS_OK;
1194         }
1195
1196         /*
1197          * Init the parse struct we will unmarshall from.
1198          */
1199
1200         if ((mem_ctx = talloc_init("set_sd")) == NULL) {
1201                 DEBUG(0,("set_sd: talloc_init failed.\n"));
1202                 return NT_STATUS_NO_MEMORY;
1203         }
1204
1205         prs_init(&pd, 0, mem_ctx, UNMARSHALL);
1206
1207         /*
1208          * Setup the prs_struct to point at the memory we just
1209          * allocated.
1210          */
1211
1212         prs_give_memory( &pd, data, sd_len, False);
1213
1214         /*
1215          * Finally, unmarshall from the data buffer.
1216          */
1217
1218         if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1219                 DEBUG(0,("set_sd: Error in unmarshalling security descriptor.\n"));
1220                 /*
1221                  * Return access denied for want of a better error message..
1222                  */
1223                 talloc_destroy(mem_ctx);
1224                 return NT_STATUS_NO_MEMORY;
1225         }
1226
1227         if (psd->owner_sid==0) {
1228                 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
1229         }
1230         if (psd->group_sid==0) {
1231                 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
1232         }
1233         if (psd->sacl==0) {
1234                 security_info_sent &= ~SACL_SECURITY_INFORMATION;
1235         }
1236         if (psd->dacl==0) {
1237                 security_info_sent &= ~DACL_SECURITY_INFORMATION;
1238         }
1239
1240         status = SMB_VFS_FSET_NT_ACL( fsp, fsp->fh->fd, security_info_sent, psd);
1241
1242         talloc_destroy(mem_ctx);
1243         return status;
1244 }
1245
1246 /****************************************************************************
1247  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
1248 ****************************************************************************/
1249
1250 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
1251 {
1252         struct ea_list *ea_list_head = NULL;
1253         size_t offset = 0;
1254
1255         if (data_size < 4) {
1256                 return NULL;
1257         }
1258
1259         while (offset + 4 <= data_size) {
1260                 size_t next_offset = IVAL(pdata,offset);
1261                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
1262
1263                 if (!eal) {
1264                         return NULL;
1265                 }
1266
1267                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
1268                 if (next_offset == 0) {
1269                         break;
1270                 }
1271                 offset += next_offset;
1272         }
1273
1274         return ea_list_head;
1275 }
1276
1277 /****************************************************************************
1278  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1279 ****************************************************************************/
1280
1281 static void call_nt_transact_create(connection_struct *conn,
1282                                     struct smb_request *req,
1283                                     uint16 **ppsetup, uint32 setup_count,
1284                                     char **ppparams, uint32 parameter_count,
1285                                     char **ppdata, uint32 data_count,
1286                                     uint32 max_data_count)
1287 {
1288         char *fname = NULL;
1289         char *params = *ppparams;
1290         char *data = *ppdata;
1291         /* Breakout the oplock request bits so we can set the reply bits separately. */
1292         int oplock_request = 0;
1293         uint32 fattr=0;
1294         SMB_OFF_T file_len = 0;
1295         SMB_STRUCT_STAT sbuf;
1296         int info = 0;
1297         files_struct *fsp = NULL;
1298         char *p = NULL;
1299         uint32 flags;
1300         uint32 access_mask;
1301         uint32 file_attributes;
1302         uint32 share_access;
1303         uint32 create_disposition;
1304         uint32 create_options;
1305         uint32 sd_len;
1306         struct security_descriptor *sd = NULL;
1307         uint32 ea_len;
1308         uint16 root_dir_fid;
1309         struct timespec c_timespec;
1310         struct timespec a_timespec;
1311         struct timespec m_timespec;
1312         struct ea_list *ea_list = NULL;
1313         NTSTATUS status;
1314         size_t param_len;
1315         SMB_BIG_UINT allocation_size;
1316         uint8_t oplock_granted;
1317         TALLOC_CTX *ctx = talloc_tos();
1318
1319         DEBUG(5,("call_nt_transact_create\n"));
1320
1321         /*
1322          * If it's an IPC, use the pipe handler.
1323          */
1324
1325         if (IS_IPC(conn)) {
1326                 if (lp_nt_pipe_support()) {
1327                         do_nt_transact_create_pipe(
1328                                 conn, req,
1329                                 ppsetup, setup_count,
1330                                 ppparams, parameter_count,
1331                                 ppdata, data_count);
1332                         return;
1333                 } else {
1334                         reply_doserror(req, ERRDOS, ERRnoaccess);
1335                         return;
1336                 }
1337         }
1338
1339         /*
1340          * Ensure minimum number of parameters sent.
1341          */
1342
1343         if(parameter_count < 54) {
1344                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1345                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1346                 return;
1347         }
1348
1349         flags = IVAL(params,0);
1350         access_mask = IVAL(params,8);
1351         file_attributes = IVAL(params,20);
1352         share_access = IVAL(params,24);
1353         create_disposition = IVAL(params,28);
1354         create_options = IVAL(params,32);
1355         sd_len = IVAL(params,36);
1356         ea_len = IVAL(params,40);
1357         root_dir_fid = (uint16)IVAL(params,4);
1358         allocation_size = (SMB_BIG_UINT)IVAL(params,12);
1359 #ifdef LARGE_SMB_OFF_T
1360         allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
1361 #endif
1362
1363         /* Ensure the data_len is correct for the sd and ea values given. */
1364         if ((ea_len + sd_len > data_count)
1365             || (ea_len > data_count) || (sd_len > data_count)
1366             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1367                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1368                            "%u, data_count = %u\n", (unsigned int)ea_len,
1369                            (unsigned int)sd_len, (unsigned int)data_count));
1370                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1371                 return;
1372         }
1373
1374         if (sd_len) {
1375                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1376                            sd_len));
1377
1378                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1379                                              &sd);
1380                 if (!NT_STATUS_IS_OK(status)) {
1381                         DEBUG(10, ("call_nt_transact_create: "
1382                                    "unmarshall_sec_desc failed: %s\n",
1383                                    nt_errstr(status)));
1384                         reply_nterror(req, status);
1385                         return;
1386                 }
1387         }
1388
1389         if (ea_len) {
1390                 if (!lp_ea_support(SNUM(conn))) {
1391                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1392                                    "EA's not supported.\n",
1393                                    (unsigned int)ea_len));
1394                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1395                         return;
1396                 }
1397
1398                 if (ea_len < 10) {
1399                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1400                                   "too small (should be more than 10)\n",
1401                                   (unsigned int)ea_len ));
1402                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1403                         return;
1404                 }
1405
1406                 /* We have already checked that ea_len <= data_count here. */
1407                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1408                                                ea_len);
1409                 if (ea_list == NULL) {
1410                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1411                         return;
1412                 }
1413         }
1414
1415         srvstr_get_path(ctx, params, req->flags2, &fname,
1416                         params+53, parameter_count-53,
1417                         STR_TERMINATE, &status);
1418         if (!NT_STATUS_IS_OK(status)) {
1419                 reply_nterror(req, status);
1420                 return;
1421         }
1422
1423         status = create_file(conn, req, root_dir_fid, fname, flags,
1424                              access_mask, file_attributes, share_access,
1425                              create_disposition, create_options,
1426                              oplock_request, allocation_size, sd, ea_list,
1427                              &fsp, &info, &oplock_granted, &sbuf);
1428
1429         if(!NT_STATUS_IS_OK(status)) {
1430                 if (open_was_deferred(req->mid)) {
1431                         /* We have re-scheduled this call, no error. */
1432                         return;
1433                 }
1434                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
1435                         reply_botherror(req, status, ERRDOS, ERRfilexists);
1436                 }
1437                 else {
1438                         reply_nterror(req, status);
1439                 }
1440                 return;
1441         }
1442
1443         file_len = sbuf.st_size;
1444         fattr = dos_mode(conn,fname,&sbuf);
1445         if (fattr == 0) {
1446                 fattr = FILE_ATTRIBUTE_NORMAL;
1447         }
1448
1449         /* Realloc the size of parameters and data we will return */
1450         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1451                 /* Extended response is 32 more byyes. */
1452                 param_len = 101;
1453         } else {
1454                 param_len = 69;
1455         }
1456         params = nttrans_realloc(ppparams, param_len);
1457         if(params == NULL) {
1458                 reply_doserror(req, ERRDOS, ERRnomem);
1459                 return;
1460         }
1461
1462         p = params;
1463         SCVAL(p, 0, oplock_granted);
1464
1465         p += 2;
1466         SSVAL(p,0,fsp->fnum);
1467         p += 2;
1468         if ((create_disposition == FILE_SUPERSEDE)
1469             && (info == FILE_WAS_OVERWRITTEN)) {
1470                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1471         } else {
1472                 SIVAL(p,0,info);
1473         }
1474         p += 8;
1475
1476         /* Create time. */
1477         c_timespec = get_create_timespec(
1478                 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1479         a_timespec = get_atimespec(&sbuf);
1480         m_timespec = get_mtimespec(&sbuf);
1481
1482         if (lp_dos_filetime_resolution(SNUM(conn))) {
1483                 dos_filetime_timespec(&c_timespec);
1484                 dos_filetime_timespec(&a_timespec);
1485                 dos_filetime_timespec(&m_timespec);
1486         }
1487
1488         put_long_date_timespec(p, c_timespec); /* create time. */
1489         p += 8;
1490         put_long_date_timespec(p, a_timespec); /* access time */
1491         p += 8;
1492         put_long_date_timespec(p, m_timespec); /* write time */
1493         p += 8;
1494         put_long_date_timespec(p, m_timespec); /* change time */
1495         p += 8;
1496         SIVAL(p,0,fattr); /* File Attributes. */
1497         p += 4;
1498         SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
1499         p += 8;
1500         SOFF_T(p,0,file_len);
1501         p += 8;
1502         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1503                 SSVAL(p,2,0x7);
1504         }
1505         p += 4;
1506         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1507
1508         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1509                 uint32 perms = 0;
1510                 p += 25;
1511                 if (fsp->is_directory
1512                     || can_write_to_file(conn, fname, &sbuf)) {
1513                         perms = FILE_GENERIC_ALL;
1514                 } else {
1515                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1516                 }
1517                 SIVAL(p,0,perms);
1518         }
1519
1520         DEBUG(5,("call_nt_transact_create: open name = %s\n", fname));
1521
1522         /* Send the required number of replies */
1523         send_nt_replies(req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1524
1525         return;
1526 }
1527
1528 /****************************************************************************
1529  Reply to a NT CANCEL request.
1530  conn POINTER CAN BE NULL HERE !
1531 ****************************************************************************/
1532
1533 void reply_ntcancel(connection_struct *conn, struct smb_request *req)
1534 {
1535         /*
1536          * Go through and cancel any pending change notifies.
1537          */
1538
1539         START_PROFILE(SMBntcancel);
1540         remove_pending_change_notify_requests_by_mid(req->mid);
1541         remove_pending_lock_requests_by_mid(req->mid);
1542         srv_cancel_sign_response(req->mid);
1543
1544         DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1545
1546         END_PROFILE(SMBntcancel);
1547         return;
1548 }
1549
1550 /****************************************************************************
1551  Copy a file.
1552 ****************************************************************************/
1553
1554 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1555                                 connection_struct *conn,
1556                                 struct smb_request *req,
1557                                 const char *oldname_in,
1558                                 const char *newname_in,
1559                                 uint32 attrs)
1560 {
1561         SMB_STRUCT_STAT sbuf1, sbuf2;
1562         char *oldname = NULL;
1563         char *newname = NULL;
1564         char *last_component_oldname = NULL;
1565         char *last_component_newname = NULL;
1566         files_struct *fsp1,*fsp2;
1567         uint32 fattr;
1568         int info;
1569         SMB_OFF_T ret=-1;
1570         NTSTATUS status = NT_STATUS_OK;
1571
1572         ZERO_STRUCT(sbuf1);
1573         ZERO_STRUCT(sbuf2);
1574
1575         if (!CAN_WRITE(conn)) {
1576                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1577         }
1578
1579         status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1580                         &last_component_oldname, &sbuf1);
1581         if (!NT_STATUS_IS_OK(status)) {
1582                 return status;
1583         }
1584
1585         status = check_name(conn, oldname);
1586         if (!NT_STATUS_IS_OK(status)) {
1587                 return status;
1588         }
1589
1590         /* Source must already exist. */
1591         if (!VALID_STAT(sbuf1)) {
1592                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1593         }
1594         /* Ensure attributes match. */
1595         fattr = dos_mode(conn,oldname,&sbuf1);
1596         if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1597                 return NT_STATUS_NO_SUCH_FILE;
1598         }
1599
1600         status = unix_convert(ctx, conn, newname_in, False, &newname,
1601                         &last_component_newname, &sbuf2);
1602         if (!NT_STATUS_IS_OK(status)) {
1603                 return status;
1604         }
1605
1606         status = check_name(conn, newname);
1607         if (!NT_STATUS_IS_OK(status)) {
1608                 return status;
1609         }
1610
1611         /* Disallow if newname already exists. */
1612         if (VALID_STAT(sbuf2)) {
1613                 return NT_STATUS_OBJECT_NAME_COLLISION;
1614         }
1615
1616         /* No links from a directory. */
1617         if (S_ISDIR(sbuf1.st_mode)) {
1618                 return NT_STATUS_FILE_IS_A_DIRECTORY;
1619         }
1620
1621         /* Ensure this is within the share. */
1622         status = check_reduced_name(conn, oldname);
1623         if (!NT_STATUS_IS_OK(status)) {
1624                 return status;
1625         }
1626
1627         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1628                                 oldname, newname));
1629
1630         status = open_file_ntcreate(conn, req, oldname, &sbuf1,
1631                         FILE_READ_DATA, /* Read-only. */
1632                         FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1633                         FILE_OPEN,
1634                         0, /* No create options. */
1635                         FILE_ATTRIBUTE_NORMAL,
1636                         NO_OPLOCK,
1637                         &info, &fsp1);
1638
1639         if (!NT_STATUS_IS_OK(status)) {
1640                 return status;
1641         }
1642
1643         status = open_file_ntcreate(conn, req, newname, &sbuf2,
1644                         FILE_WRITE_DATA, /* Read-only. */
1645                         FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1646                         FILE_CREATE,
1647                         0, /* No create options. */
1648                         fattr,
1649                         NO_OPLOCK,
1650                         &info, &fsp2);
1651
1652         if (!NT_STATUS_IS_OK(status)) {
1653                 close_file(fsp1,ERROR_CLOSE);
1654                 return status;
1655         }
1656
1657         if (sbuf1.st_size) {
1658                 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1659         }
1660
1661         /*
1662          * As we are opening fsp1 read-only we only expect
1663          * an error on close on fsp2 if we are out of space.
1664          * Thus we don't look at the error return from the
1665          * close of fsp1.
1666          */
1667         close_file(fsp1,NORMAL_CLOSE);
1668
1669         /* Ensure the modtime is set correctly on the destination file. */
1670         fsp_set_pending_modtime(fsp2, get_mtimespec(&sbuf1));
1671
1672         status = close_file(fsp2,NORMAL_CLOSE);
1673
1674         /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1675            creates the file. This isn't the correct thing to do in the copy
1676            case. JRA */
1677         file_set_dosmode(conn, newname, fattr, &sbuf2,
1678                          parent_dirname(newname),false);
1679
1680         if (ret < (SMB_OFF_T)sbuf1.st_size) {
1681                 return NT_STATUS_DISK_FULL;
1682         }
1683
1684         if (!NT_STATUS_IS_OK(status)) {
1685                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1686                         nt_errstr(status), oldname, newname));
1687         }
1688         return status;
1689 }
1690
1691 /****************************************************************************
1692  Reply to a NT rename request.
1693 ****************************************************************************/
1694
1695 void reply_ntrename(connection_struct *conn, struct smb_request *req)
1696 {
1697         char *oldname = NULL;
1698         char *newname = NULL;
1699         char *p;
1700         NTSTATUS status;
1701         bool src_has_wcard = False;
1702         bool dest_has_wcard = False;
1703         uint32 attrs;
1704         uint16 rename_type;
1705         TALLOC_CTX *ctx = talloc_tos();
1706
1707         START_PROFILE(SMBntrename);
1708
1709         if (req->wct < 4) {
1710                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1711                 END_PROFILE(SMBntrename);
1712                 return;
1713         }
1714
1715         attrs = SVAL(req->inbuf,smb_vwv0);
1716         rename_type = SVAL(req->inbuf,smb_vwv1);
1717
1718         p = smb_buf(req->inbuf) + 1;
1719         p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &oldname, p,
1720                                    0, STR_TERMINATE, &status,
1721                                    &src_has_wcard);
1722         if (!NT_STATUS_IS_OK(status)) {
1723                 reply_nterror(req, status);
1724                 END_PROFILE(SMBntrename);
1725                 return;
1726         }
1727
1728         if( is_ntfs_stream_name(oldname)) {
1729                 /* Can't rename a stream. */
1730                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1731                 END_PROFILE(SMBntrename);
1732                 return;
1733         }
1734
1735         if (ms_has_wild(oldname)) {
1736                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1737                 END_PROFILE(SMBntrename);
1738                 return;
1739         }
1740
1741         p++;
1742         p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p,
1743                                    0, STR_TERMINATE, &status,
1744                                    &dest_has_wcard);
1745         if (!NT_STATUS_IS_OK(status)) {
1746                 reply_nterror(req, status);
1747                 END_PROFILE(SMBntrename);
1748                 return;
1749         }
1750
1751         status = resolve_dfspath(ctx, conn,
1752                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1753                                 oldname,
1754                                 &oldname);
1755         if (!NT_STATUS_IS_OK(status)) {
1756                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1757                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1758                                         ERRSRV, ERRbadpath);
1759                         END_PROFILE(SMBntrename);
1760                         return;
1761                 }
1762                 reply_nterror(req, status);
1763                 END_PROFILE(SMBntrename);
1764                 return;
1765         }
1766
1767         status = resolve_dfspath(ctx, conn,
1768                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1769                                 newname,
1770                                 &newname);
1771         if (!NT_STATUS_IS_OK(status)) {
1772                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1773                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1774                                         ERRSRV, ERRbadpath);
1775                         END_PROFILE(SMBntrename);
1776                         return;
1777                 }
1778                 reply_nterror(req, status);
1779                 END_PROFILE(SMBntrename);
1780                 return;
1781         }
1782
1783         DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1784
1785         switch(rename_type) {
1786                 case RENAME_FLAG_RENAME:
1787                         status = rename_internals(ctx, conn, req, oldname,
1788                                         newname, attrs, False, src_has_wcard,
1789                                         dest_has_wcard);
1790                         break;
1791                 case RENAME_FLAG_HARD_LINK:
1792                         if (src_has_wcard || dest_has_wcard) {
1793                                 /* No wildcards. */
1794                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1795                         } else {
1796                                 status = hardlink_internals(ctx,
1797                                                 conn,
1798                                                 oldname,
1799                                                 newname);
1800                         }
1801                         break;
1802                 case RENAME_FLAG_COPY:
1803                         if (src_has_wcard || dest_has_wcard) {
1804                                 /* No wildcards. */
1805                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1806                         } else {
1807                                 status = copy_internals(ctx, conn, req, oldname,
1808                                                         newname, attrs);
1809                         }
1810                         break;
1811                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1812                         status = NT_STATUS_INVALID_PARAMETER;
1813                         break;
1814                 default:
1815                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1816                         break;
1817         }
1818
1819         if (!NT_STATUS_IS_OK(status)) {
1820                 if (open_was_deferred(req->mid)) {
1821                         /* We have re-scheduled this call. */
1822                         END_PROFILE(SMBntrename);
1823                         return;
1824                 }
1825
1826                 reply_nterror(req, status);
1827                 END_PROFILE(SMBntrename);
1828                 return;
1829         }
1830
1831         reply_outbuf(req, 0, 0);
1832
1833         END_PROFILE(SMBntrename);
1834         return;
1835 }
1836
1837 /****************************************************************************
1838  Reply to a notify change - queue the request and
1839  don't allow a directory to be opened.
1840 ****************************************************************************/
1841
1842 static void call_nt_transact_notify_change(connection_struct *conn,
1843                                            struct smb_request *req,
1844                                            uint16 **ppsetup,
1845                                            uint32 setup_count,
1846                                            char **ppparams,
1847                                            uint32 parameter_count,
1848                                            char **ppdata, uint32 data_count,
1849                                            uint32 max_data_count,
1850                                            uint32 max_param_count)
1851 {
1852         uint16 *setup = *ppsetup;
1853         files_struct *fsp;
1854         uint32 filter;
1855         NTSTATUS status;
1856         bool recursive;
1857
1858         if(setup_count < 6) {
1859                 reply_doserror(req, ERRDOS, ERRbadfunc);
1860                 return;
1861         }
1862
1863         fsp = file_fsp(SVAL(setup,4));
1864         filter = IVAL(setup, 0);
1865         recursive = (SVAL(setup, 6) != 0) ? True : False;
1866
1867         DEBUG(3,("call_nt_transact_notify_change\n"));
1868
1869         if(!fsp) {
1870                 reply_doserror(req, ERRDOS, ERRbadfid);
1871                 return;
1872         }
1873
1874         {
1875                 char *filter_string;
1876
1877                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1878                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1879                         return;
1880                 }
1881
1882                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1883                          "called on %s, filter = %s, recursive = %d\n",
1884                          fsp->fsp_name, filter_string, recursive));
1885
1886                 TALLOC_FREE(filter_string);
1887         }
1888
1889         if((!fsp->is_directory) || (conn != fsp->conn)) {
1890                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1891                 return;
1892         }
1893
1894         if (fsp->notify == NULL) {
1895
1896                 status = change_notify_create(fsp, filter, recursive);
1897
1898                 if (!NT_STATUS_IS_OK(status)) {
1899                         DEBUG(10, ("change_notify_create returned %s\n",
1900                                    nt_errstr(status)));
1901                         reply_nterror(req, status);
1902                         return;
1903                 }
1904         }
1905
1906         if (fsp->notify->num_changes != 0) {
1907
1908                 /*
1909                  * We've got changes pending, respond immediately
1910                  */
1911
1912                 /*
1913                  * TODO: write a torture test to check the filtering behaviour
1914                  * here.
1915                  */
1916
1917                 change_notify_reply(req->inbuf, max_param_count, fsp->notify);
1918
1919                 /*
1920                  * change_notify_reply() above has independently sent its
1921                  * results
1922                  */
1923                 return;
1924         }
1925
1926         /*
1927          * No changes pending, queue the request
1928          */
1929
1930         status = change_notify_add_request(req->inbuf, max_param_count, filter,
1931                         recursive, fsp);
1932         if (!NT_STATUS_IS_OK(status)) {
1933                 reply_nterror(req, status);
1934         }
1935         return;
1936 }
1937
1938 /****************************************************************************
1939  Reply to an NT transact rename command.
1940 ****************************************************************************/
1941
1942 static void call_nt_transact_rename(connection_struct *conn,
1943                                     struct smb_request *req,
1944                                     uint16 **ppsetup, uint32 setup_count,
1945                                     char **ppparams, uint32 parameter_count,
1946                                     char **ppdata, uint32 data_count,
1947                                     uint32 max_data_count)
1948 {
1949         char *params = *ppparams;
1950         char *new_name = NULL;
1951         files_struct *fsp = NULL;
1952         bool replace_if_exists = False;
1953         bool dest_has_wcard = False;
1954         NTSTATUS status;
1955         TALLOC_CTX *ctx = talloc_tos();
1956
1957         if(parameter_count < 5) {
1958                 reply_doserror(req, ERRDOS, ERRbadfunc);
1959                 return;
1960         }
1961
1962         fsp = file_fsp(SVAL(params, 0));
1963         replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False;
1964         if (!check_fsp(conn, req, fsp, &current_user)) {
1965                 return;
1966         }
1967         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1968                               parameter_count - 4,
1969                               STR_TERMINATE, &status, &dest_has_wcard);
1970         if (!NT_STATUS_IS_OK(status)) {
1971                 reply_nterror(req, status);
1972                 return;
1973         }
1974
1975         status = rename_internals(ctx,
1976                         conn,
1977                         req,
1978                         fsp->fsp_name,
1979                         new_name,
1980                         0,
1981                         replace_if_exists,
1982                         False,
1983                         dest_has_wcard);
1984
1985         if (!NT_STATUS_IS_OK(status)) {
1986                 if (open_was_deferred(req->mid)) {
1987                         /* We have re-scheduled this call. */
1988                         return;
1989                 }
1990                 reply_nterror(req, status);
1991                 return;
1992         }
1993
1994         /*
1995          * Rename was successful.
1996          */
1997         send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0);
1998
1999         DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
2000                  fsp->fsp_name, new_name));
2001
2002         return;
2003 }
2004
2005 /******************************************************************************
2006  Fake up a completely empty SD.
2007 *******************************************************************************/
2008
2009 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
2010 {
2011         size_t sd_size;
2012
2013         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
2014         if(!*ppsd) {
2015                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
2016                 return NT_STATUS_NO_MEMORY;
2017         }
2018
2019         return NT_STATUS_OK;
2020 }
2021
2022 /****************************************************************************
2023  Reply to query a security descriptor.
2024 ****************************************************************************/
2025
2026 static void call_nt_transact_query_security_desc(connection_struct *conn,
2027                                                  struct smb_request *req,
2028                                                  uint16 **ppsetup,
2029                                                  uint32 setup_count,
2030                                                  char **ppparams,
2031                                                  uint32 parameter_count,
2032                                                  char **ppdata,
2033                                                  uint32 data_count,
2034                                                  uint32 max_data_count)
2035 {
2036         char *params = *ppparams;
2037         char *data = *ppdata;
2038         prs_struct pd;
2039         SEC_DESC *psd = NULL;
2040         size_t sd_size;
2041         uint32 security_info_wanted;
2042         TALLOC_CTX *mem_ctx;
2043         files_struct *fsp = NULL;
2044         NTSTATUS status;
2045
2046         if(parameter_count < 8) {
2047                 reply_doserror(req, ERRDOS, ERRbadfunc);
2048                 return;
2049         }
2050
2051         fsp = file_fsp(SVAL(params,0));
2052         if(!fsp) {
2053                 reply_doserror(req, ERRDOS, ERRbadfid);
2054                 return;
2055         }
2056
2057         security_info_wanted = IVAL(params,4);
2058
2059         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
2060                         (unsigned int)security_info_wanted ));
2061
2062         params = nttrans_realloc(ppparams, 4);
2063         if(params == NULL) {
2064                 reply_doserror(req, ERRDOS, ERRnomem);
2065                 return;
2066         }
2067
2068         if ((mem_ctx = talloc_init("call_nt_transact_query_security_desc")) == NULL) {
2069                 DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n"));
2070                 reply_doserror(req, ERRDOS, ERRnomem);
2071                 return;
2072         }
2073
2074         /*
2075          * Get the permissions to return.
2076          */
2077
2078         if (!lp_nt_acl_support(SNUM(conn))) {
2079                 status = get_null_nt_acl(mem_ctx, &psd);
2080         } else {
2081                 status = SMB_VFS_FGET_NT_ACL(fsp, fsp->fh->fd,
2082                                              security_info_wanted, &psd);
2083         }
2084
2085         if (!NT_STATUS_IS_OK(status)) {
2086                 talloc_destroy(mem_ctx);
2087                 reply_nterror(req, status);
2088                 return;
2089         }
2090
2091         sd_size = sec_desc_size(psd);
2092
2093         DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
2094
2095         SIVAL(params,0,(uint32)sd_size);
2096
2097         if(max_data_count < sd_size) {
2098
2099                 send_nt_replies(req, NT_STATUS_BUFFER_TOO_SMALL,
2100                                 params, 4, *ppdata, 0);
2101                 talloc_destroy(mem_ctx);
2102                 return;
2103         }
2104
2105         /*
2106          * Allocate the data we will point this at.
2107          */
2108
2109         data = nttrans_realloc(ppdata, sd_size);
2110         if(data == NULL) {
2111                 talloc_destroy(mem_ctx);
2112                 reply_doserror(req, ERRDOS, ERRnomem);
2113                 return;
2114         }
2115
2116         /*
2117          * Init the parse struct we will marshall into.
2118          */
2119
2120         prs_init(&pd, 0, mem_ctx, MARSHALL);
2121
2122         /*
2123          * Setup the prs_struct to point at the memory we just
2124          * allocated.
2125          */
2126
2127         prs_give_memory( &pd, data, (uint32)sd_size, False);
2128
2129         /*
2130          * Finally, linearize into the outgoing buffer.
2131          */
2132
2133         if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
2134                 DEBUG(0,("call_nt_transact_query_security_desc: Error in marshalling \
2135 security descriptor.\n"));
2136                 /*
2137                  * Return access denied for want of a better error message..
2138                  */
2139                 talloc_destroy(mem_ctx);
2140                 reply_unixerror(req, ERRDOS, ERRnoaccess);
2141                 return;
2142         }
2143
2144         /*
2145          * Now we can delete the security descriptor.
2146          */
2147
2148         talloc_destroy(mem_ctx);
2149
2150         send_nt_replies(req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2151         return;
2152 }
2153
2154 /****************************************************************************
2155  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2156 ****************************************************************************/
2157
2158 static void call_nt_transact_set_security_desc(connection_struct *conn,
2159                                                struct smb_request *req,
2160                                                uint16 **ppsetup,
2161                                                uint32 setup_count,
2162                                                char **ppparams,
2163                                                uint32 parameter_count,
2164                                                char **ppdata,
2165                                                uint32 data_count,
2166                                                uint32 max_data_count)
2167 {
2168         char *params= *ppparams;
2169         char *data = *ppdata;
2170         files_struct *fsp = NULL;
2171         uint32 security_info_sent = 0;
2172         NTSTATUS nt_status;
2173
2174         if(parameter_count < 8) {
2175                 reply_doserror(req, ERRDOS, ERRbadfunc);
2176                 return;
2177         }
2178
2179         if((fsp = file_fsp(SVAL(params,0))) == NULL) {
2180                 reply_doserror(req, ERRDOS, ERRbadfid);
2181                 return;
2182         }
2183
2184         if(!lp_nt_acl_support(SNUM(conn))) {
2185                 goto done;
2186         }
2187
2188         security_info_sent = IVAL(params,4);
2189
2190         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
2191                 (unsigned int)security_info_sent ));
2192
2193         if (data_count == 0) {
2194                 reply_doserror(req, ERRDOS, ERRnoaccess);
2195                 return;
2196         }
2197
2198         if (!NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, data_count, security_info_sent))) {
2199                 reply_nterror(req, nt_status);
2200                 return;
2201         }
2202
2203   done:
2204
2205         send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0);
2206         return;
2207 }
2208
2209 /****************************************************************************
2210  Reply to NT IOCTL
2211 ****************************************************************************/
2212
2213 static void call_nt_transact_ioctl(connection_struct *conn,
2214                                    struct smb_request *req,
2215                                    uint16 **ppsetup, uint32 setup_count,
2216                                    char **ppparams, uint32 parameter_count,
2217                                    char **ppdata, uint32 data_count,
2218                                    uint32 max_data_count)
2219 {
2220         uint32 function;
2221         uint16 fidnum;
2222         files_struct *fsp;
2223         uint8 isFSctl;
2224         uint8 compfilter;
2225         static bool logged_message;
2226         char *pdata = *ppdata;
2227
2228         if (setup_count != 8) {
2229                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2230                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2231                 return;
2232         }
2233
2234         function = IVAL(*ppsetup, 0);
2235         fidnum = SVAL(*ppsetup, 4);
2236         isFSctl = CVAL(*ppsetup, 6);
2237         compfilter = CVAL(*ppsetup, 7);
2238
2239         DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2240                  function, fidnum, isFSctl, compfilter));
2241
2242         fsp=file_fsp(fidnum);
2243         /* this check is done in each implemented function case for now
2244            because I don't want to break anything... --metze
2245         FSP_BELONGS_CONN(fsp,conn);*/
2246
2247         switch (function) {
2248         case FSCTL_SET_SPARSE:
2249                 /* pretend this succeeded - tho strictly we should
2250                    mark the file sparse (if the local fs supports it)
2251                    so we can know if we need to pre-allocate or not */
2252
2253                 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
2254                 send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0);
2255                 return;
2256
2257         case FSCTL_CREATE_OR_GET_OBJECT_ID:
2258         {
2259                 unsigned char objid[16];
2260
2261                 /* This should return the object-id on this file.
2262                  * I think I'll make this be the inode+dev. JRA.
2263                  */
2264
2265                 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2266
2267                 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
2268                         return;
2269                 }
2270
2271                 data_count = 64;
2272                 pdata = nttrans_realloc(ppdata, data_count);
2273                 if (pdata == NULL) {
2274                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2275                         return;
2276                 }
2277                 push_file_id_16(pdata, &fsp->file_id);
2278                 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2279                 push_file_id_16(pdata+32, &fsp->file_id);
2280                 send_nt_replies(req, NT_STATUS_OK, NULL, 0,
2281                                 pdata, data_count);
2282                 return;
2283         }
2284
2285         case FSCTL_GET_REPARSE_POINT:
2286                 /* pretend this fail - my winXP does it like this
2287                  * --metze
2288                  */
2289
2290                 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2291                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2292                 return;
2293
2294         case FSCTL_SET_REPARSE_POINT:
2295                 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2296                  * --metze
2297                  */
2298
2299                 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2300                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2301                 return;
2302
2303         case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2304         {
2305                 /*
2306                  * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2307                  * and return their volume names.  If max_data_count is 16, then it is just
2308                  * asking for the number of volumes and length of the combined names.
2309                  *
2310                  * pdata is the data allocated by our caller, but that uses
2311                  * total_data_count (which is 0 in our case) rather than max_data_count.
2312                  * Allocate the correct amount and return the pointer to let
2313                  * it be deallocated when we return.
2314                  */
2315                 SHADOW_COPY_DATA *shadow_data = NULL;
2316                 TALLOC_CTX *shadow_mem_ctx = NULL;
2317                 bool labels = False;
2318                 uint32 labels_data_count = 0;
2319                 uint32 i;
2320                 char *cur_pdata;
2321
2322                 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
2323                         return;
2324                 }
2325
2326                 if (max_data_count < 16) {
2327                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2328                                 max_data_count));
2329                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2330                         return;
2331                 }
2332
2333                 if (max_data_count > 16) {
2334                         labels = True;
2335                 }
2336
2337                 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2338                 if (shadow_mem_ctx == NULL) {
2339                         DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2340                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2341                         return;
2342                 }
2343
2344                 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
2345                 if (shadow_data == NULL) {
2346                         DEBUG(0,("TALLOC_ZERO() failed!\n"));
2347                         talloc_destroy(shadow_mem_ctx);
2348                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2349                         return;
2350                 }
2351
2352                 shadow_data->mem_ctx = shadow_mem_ctx;
2353
2354                 /*
2355                  * Call the VFS routine to actually do the work.
2356                  */
2357                 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2358                         talloc_destroy(shadow_data->mem_ctx);
2359                         if (errno == ENOSYS) {
2360                                 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2361                                         conn->connectpath));
2362                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2363                                 return;
2364                         } else {
2365                                 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2366                                         conn->connectpath));
2367                                 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2368                                 return;
2369                         }
2370                 }
2371
2372                 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2373
2374                 if (!labels) {
2375                         data_count = 16;
2376                 } else {
2377                         data_count = 12+labels_data_count+4;
2378                 }
2379
2380                 if (max_data_count<data_count) {
2381                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2382                                 max_data_count,data_count));
2383                         talloc_destroy(shadow_data->mem_ctx);
2384                         reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2385                         return;
2386                 }
2387
2388                 pdata = nttrans_realloc(ppdata, data_count);
2389                 if (pdata == NULL) {
2390                         talloc_destroy(shadow_data->mem_ctx);
2391                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2392                         return;
2393                 }
2394
2395                 cur_pdata = pdata;
2396
2397                 /* num_volumes 4 bytes */
2398                 SIVAL(pdata,0,shadow_data->num_volumes);
2399
2400                 if (labels) {
2401                         /* num_labels 4 bytes */
2402                         SIVAL(pdata,4,shadow_data->num_volumes);
2403                 }
2404
2405                 /* needed_data_count 4 bytes */
2406                 SIVAL(pdata,8,labels_data_count);
2407
2408                 cur_pdata+=12;
2409
2410                 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2411                         shadow_data->num_volumes,fsp->fsp_name));
2412                 if (labels && shadow_data->labels) {
2413                         for (i=0;i<shadow_data->num_volumes;i++) {
2414                                 srvstr_push(pdata, req->flags2,
2415                                             cur_pdata, shadow_data->labels[i],
2416                                             2*sizeof(SHADOW_COPY_LABEL),
2417                                             STR_UNICODE|STR_TERMINATE);
2418                                 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2419                                 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2420                         }
2421                 }
2422
2423                 talloc_destroy(shadow_data->mem_ctx);
2424
2425                 send_nt_replies(req, NT_STATUS_OK, NULL, 0,
2426                                 pdata, data_count);
2427
2428                 return;
2429         }
2430
2431         case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2432         {
2433                 /* pretend this succeeded -
2434                  *
2435                  * we have to send back a list with all files owned by this SID
2436                  *
2437                  * but I have to check that --metze
2438                  */
2439                 DOM_SID sid;
2440                 uid_t uid;
2441                 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2442
2443                 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2444
2445                 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
2446                         return;
2447                 }
2448
2449                 /* unknown 4 bytes: this is not the length of the sid :-(  */
2450                 /*unknown = IVAL(pdata,0);*/
2451
2452                 sid_parse(pdata+4,sid_len,&sid);
2453                 DEBUGADD(10,("for SID: %s\n",sid_string_static(&sid)));
2454
2455                 if (!sid_to_uid(&sid, &uid)) {
2456                         DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2457                                 sid_string_static(&sid),(unsigned long)sid_len));
2458                         uid = (-1);
2459                 }
2460
2461                 /* we can take a look at the find source :-)
2462                  *
2463                  * find ./ -uid $uid  -name '*'   is what we need here
2464                  *
2465                  *
2466                  * and send 4bytes len and then NULL terminated unicode strings
2467                  * for each file
2468                  *
2469                  * but I don't know how to deal with the paged results
2470                  * (maybe we can hang the result anywhere in the fsp struct)
2471                  *
2472                  * we don't send all files at once
2473                  * and at the next we should *not* start from the beginning,
2474                  * so we have to cache the result
2475                  *
2476                  * --metze
2477                  */
2478
2479                 /* this works for now... */
2480                 send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0);
2481                 return;
2482         }
2483         default:
2484                 if (!logged_message) {
2485                         logged_message = True; /* Only print this once... */
2486                         DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2487                                  function));
2488                 }
2489         }
2490
2491         reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2492 }
2493
2494
2495 #ifdef HAVE_SYS_QUOTAS
2496 /****************************************************************************
2497  Reply to get user quota
2498 ****************************************************************************/
2499
2500 static void call_nt_transact_get_user_quota(connection_struct *conn,
2501                                             struct smb_request *req,
2502                                             uint16 **ppsetup,
2503                                             uint32 setup_count,
2504                                             char **ppparams,
2505                                             uint32 parameter_count,
2506                                             char **ppdata,
2507                                             uint32 data_count,
2508                                             uint32 max_data_count)
2509 {
2510         NTSTATUS nt_status = NT_STATUS_OK;
2511         char *params = *ppparams;
2512         char *pdata = *ppdata;
2513         char *entry;
2514         int data_len=0,param_len=0;
2515         int qt_len=0;
2516         int entry_len = 0;
2517         files_struct *fsp = NULL;
2518         uint16 level = 0;
2519         size_t sid_len;
2520         DOM_SID sid;
2521         bool start_enum = True;
2522         SMB_NTQUOTA_STRUCT qt;
2523         SMB_NTQUOTA_LIST *tmp_list;
2524         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2525
2526         ZERO_STRUCT(qt);
2527
2528         /* access check */
2529         if (current_user.ut.uid != 0) {
2530                 DEBUG(1,("get_user_quota: access_denied service [%s] user [%s]\n",
2531                         lp_servicename(SNUM(conn)),conn->user));
2532                 reply_doserror(req, ERRDOS, ERRnoaccess);
2533                 return;
2534         }
2535
2536         /*
2537          * Ensure minimum number of parameters sent.
2538          */
2539
2540         if (parameter_count < 4) {
2541                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2542                 reply_doserror(req, ERRDOS, ERRinvalidparam);
2543                 return;
2544         }
2545
2546         /* maybe we can check the quota_fnum */
2547         fsp = file_fsp(SVAL(params,0));
2548         if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2549                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2550                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2551                 return;
2552         }
2553
2554         /* the NULL pointer checking for fsp->fake_file_handle->pd
2555          * is done by CHECK_NTQUOTA_HANDLE_OK()
2556          */
2557         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->pd;
2558
2559         level = SVAL(params,2);
2560
2561         /* unknown 12 bytes leading in params */
2562
2563         switch (level) {
2564                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2565                         /* seems that we should continue with the enum here --metze */
2566
2567                         if (qt_handle->quota_list!=NULL &&
2568                             qt_handle->tmp_list==NULL) {
2569
2570                                 /* free the list */
2571                                 free_ntquota_list(&(qt_handle->quota_list));
2572
2573                                 /* Realloc the size of parameters and data we will return */
2574                                 param_len = 4;
2575                                 params = nttrans_realloc(ppparams, param_len);
2576                                 if(params == NULL) {
2577                                         reply_doserror(req, ERRDOS, ERRnomem);
2578                                         return;
2579                                 }
2580
2581                                 data_len = 0;
2582                                 SIVAL(params,0,data_len);
2583
2584                                 break;
2585                         }
2586
2587                         start_enum = False;
2588
2589                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2590
2591                         if (qt_handle->quota_list==NULL &&
2592                                 qt_handle->tmp_list==NULL) {
2593                                 start_enum = True;
2594                         }
2595
2596                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2597                                 reply_doserror(req, ERRSRV, ERRerror);
2598                                 return;
2599                         }
2600
2601                         /* Realloc the size of parameters and data we will return */
2602                         param_len = 4;
2603                         params = nttrans_realloc(ppparams, param_len);
2604                         if(params == NULL) {
2605                                 reply_doserror(req, ERRDOS, ERRnomem);
2606                                 return;
2607                         }
2608
2609                         /* we should not trust the value in max_data_count*/
2610                         max_data_count = MIN(max_data_count,2048);
2611
2612                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2613                         if(pdata == NULL) {
2614                                 reply_doserror(req, ERRDOS, ERRnomem);
2615                                 return;
2616                         }
2617
2618                         entry = pdata;
2619
2620                         /* set params Size of returned Quota Data 4 bytes*/
2621                         /* but set it later when we know it */
2622
2623                         /* for each entry push the data */
2624
2625                         if (start_enum) {
2626                                 qt_handle->tmp_list = qt_handle->quota_list;
2627                         }
2628
2629                         tmp_list = qt_handle->tmp_list;
2630
2631                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2632                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2633
2634                                 sid_len = sid_size(&tmp_list->quotas->sid);
2635                                 entry_len = 40 + sid_len;
2636
2637                                 /* nextoffset entry 4 bytes */
2638                                 SIVAL(entry,0,entry_len);
2639
2640                                 /* then the len of the SID 4 bytes */
2641                                 SIVAL(entry,4,sid_len);
2642
2643                                 /* unknown data 8 bytes SMB_BIG_UINT */
2644                                 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/
2645
2646                                 /* the used disk space 8 bytes SMB_BIG_UINT */
2647                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2648
2649                                 /* the soft quotas 8 bytes SMB_BIG_UINT */
2650                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2651
2652                                 /* the hard quotas 8 bytes SMB_BIG_UINT */
2653                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2654
2655                                 /* and now the SID */
2656                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2657                         }
2658
2659                         qt_handle->tmp_list = tmp_list;
2660
2661                         /* overwrite the offset of the last entry */
2662                         SIVAL(entry-entry_len,0,0);
2663
2664                         data_len = 4+qt_len;
2665                         /* overwrite the params quota_data_len */
2666                         SIVAL(params,0,data_len);
2667
2668                         break;
2669
2670                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2671
2672                         /* unknown 4 bytes IVAL(pdata,0) */
2673
2674                         if (data_count < 8) {
2675                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2676                                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2677                                 return;
2678                         }
2679
2680                         sid_len = IVAL(pdata,4);
2681                         /* Ensure this is less than 1mb. */
2682                         if (sid_len > (1024*1024)) {
2683                                 reply_doserror(req, ERRDOS, ERRnomem);
2684                                 return;
2685                         }
2686
2687                         if (data_count < 8+sid_len) {
2688                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2689                                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2690                                 return;
2691                         }
2692
2693                         data_len = 4+40+sid_len;
2694
2695                         if (max_data_count < data_len) {
2696                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2697                                         max_data_count, data_len));
2698                                 param_len = 4;
2699                                 SIVAL(params,0,data_len);
2700                                 data_len = 0;
2701                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2702                                 break;
2703                         }
2704
2705                         sid_parse(pdata+8,sid_len,&sid);
2706
2707                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2708                                 ZERO_STRUCT(qt);
2709                                 /*
2710                                  * we have to return zero's in all fields
2711                                  * instead of returning an error here
2712                                  * --metze
2713                                  */
2714                         }
2715
2716                         /* Realloc the size of parameters and data we will return */
2717                         param_len = 4;
2718                         params = nttrans_realloc(ppparams, param_len);
2719                         if(params == NULL) {
2720                                 reply_doserror(req, ERRDOS, ERRnomem);
2721                                 return;
2722                         }
2723
2724                         pdata = nttrans_realloc(ppdata, data_len);
2725                         if(pdata == NULL) {
2726                                 reply_doserror(req, ERRDOS, ERRnomem);
2727                                 return;
2728                         }
2729
2730                         entry = pdata;
2731
2732                         /* set params Size of returned Quota Data 4 bytes*/
2733                         SIVAL(params,0,data_len);
2734
2735                         /* nextoffset entry 4 bytes */
2736                         SIVAL(entry,0,0);
2737
2738                         /* then the len of the SID 4 bytes */
2739                         SIVAL(entry,4,sid_len);
2740
2741                         /* unknown data 8 bytes SMB_BIG_UINT */
2742                         SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/
2743
2744                         /* the used disk space 8 bytes SMB_BIG_UINT */
2745                         SBIG_UINT(entry,16,qt.usedspace);
2746
2747                         /* the soft quotas 8 bytes SMB_BIG_UINT */
2748                         SBIG_UINT(entry,24,qt.softlim);
2749
2750                         /* the hard quotas 8 bytes SMB_BIG_UINT */
2751                         SBIG_UINT(entry,32,qt.hardlim);
2752
2753                         /* and now the SID */
2754                         sid_linearize(entry+40, sid_len, &sid);
2755
2756                         break;
2757
2758                 default:
2759                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2760                         reply_doserror(req, ERRSRV, ERRerror);
2761                         return;
2762                         break;
2763         }
2764
2765         send_nt_replies(req, nt_status, params, param_len,
2766                         pdata, data_len);
2767 }
2768
2769 /****************************************************************************
2770  Reply to set user quota
2771 ****************************************************************************/
2772
2773 static void call_nt_transact_set_user_quota(connection_struct *conn,
2774                                             struct smb_request *req,
2775                                             uint16 **ppsetup,
2776                                             uint32 setup_count,
2777                                             char **ppparams,
2778                                             uint32 parameter_count,
2779                                             char **ppdata,
2780                                             uint32 data_count,
2781                                             uint32 max_data_count)
2782 {
2783         char *params = *ppparams;
2784         char *pdata = *ppdata;
2785         int data_len=0,param_len=0;
2786         SMB_NTQUOTA_STRUCT qt;
2787         size_t sid_len;
2788         DOM_SID sid;
2789         files_struct *fsp = NULL;
2790
2791         ZERO_STRUCT(qt);
2792
2793         /* access check */
2794         if (current_user.ut.uid != 0) {
2795                 DEBUG(1,("set_user_quota: access_denied service [%s] user [%s]\n",
2796                         lp_servicename(SNUM(conn)),conn->user));
2797                 reply_doserror(req, ERRDOS, ERRnoaccess);
2798                 return;
2799         }
2800
2801         /*
2802          * Ensure minimum number of parameters sent.
2803          */
2804
2805         if (parameter_count < 2) {
2806                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2807                 reply_doserror(req, ERRDOS, ERRinvalidparam);
2808                 return;
2809         }
2810
2811         /* maybe we can check the quota_fnum */
2812         fsp = file_fsp(SVAL(params,0));
2813         if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2814                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2815                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2816                 return;
2817         }
2818
2819         if (data_count < 40) {
2820                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2821                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2822                 return;
2823         }
2824
2825         /* offset to next quota record.
2826          * 4 bytes IVAL(pdata,0)
2827          * unused here...
2828          */
2829
2830         /* sid len */
2831         sid_len = IVAL(pdata,4);
2832
2833         if (data_count < 40+sid_len) {
2834                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2835                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2836                 return;
2837         }
2838
2839         /* unknown 8 bytes in pdata
2840          * maybe its the change time in NTTIME
2841          */
2842
2843         /* the used space 8 bytes (SMB_BIG_UINT)*/
2844         qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16);
2845 #ifdef LARGE_SMB_OFF_T
2846         qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32);
2847 #else /* LARGE_SMB_OFF_T */
2848         if ((IVAL(pdata,20) != 0)&&
2849                 ((qt.usedspace != 0xFFFFFFFF)||
2850                 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2851                 /* more than 32 bits? */
2852                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2853                 return;
2854         }
2855 #endif /* LARGE_SMB_OFF_T */
2856
2857         /* the soft quotas 8 bytes (SMB_BIG_UINT)*/
2858         qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24);
2859 #ifdef LARGE_SMB_OFF_T
2860         qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32);
2861 #else /* LARGE_SMB_OFF_T */
2862         if ((IVAL(pdata,28) != 0)&&
2863                 ((qt.softlim != 0xFFFFFFFF)||
2864                 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2865                 /* more than 32 bits? */
2866                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2867                 return;
2868         }
2869 #endif /* LARGE_SMB_OFF_T */
2870
2871         /* the hard quotas 8 bytes (SMB_BIG_UINT)*/
2872         qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32);
2873 #ifdef LARGE_SMB_OFF_T
2874         qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32);
2875 #else /* LARGE_SMB_OFF_T */
2876         if ((IVAL(pdata,36) != 0)&&
2877                 ((qt.hardlim != 0xFFFFFFFF)||
2878                 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2879                 /* more than 32 bits? */
2880                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2881                 return;
2882         }
2883 #endif /* LARGE_SMB_OFF_T */
2884
2885         sid_parse(pdata+40,sid_len,&sid);
2886         DEBUGADD(8,("SID: %s\n",sid_string_static(&sid)));
2887
2888         /* 44 unknown bytes left... */
2889
2890         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2891                 reply_doserror(req, ERRSRV, ERRerror);
2892                 return;
2893         }
2894
2895         send_nt_replies(req, NT_STATUS_OK, params, param_len,
2896                         pdata, data_len);
2897 }
2898 #endif /* HAVE_SYS_QUOTAS */
2899
2900 static void handle_nttrans(connection_struct *conn,
2901                            struct trans_state *state,
2902                            struct smb_request *req)
2903 {
2904         if (Protocol >= PROTOCOL_NT1) {
2905                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2906                 SSVAL(req->inbuf,smb_flg2,req->flags2);
2907         }
2908
2909         /* Now we must call the relevant NT_TRANS function */
2910         switch(state->call) {
2911                 case NT_TRANSACT_CREATE:
2912                 {
2913                         START_PROFILE(NT_transact_create);
2914                         call_nt_transact_create(
2915                                 conn, req,
2916                                 &state->setup, state->setup_count,
2917                                 &state->param, state->total_param,
2918                                 &state->data, state->total_data,
2919                                 state->max_data_return);
2920                         END_PROFILE(NT_transact_create);
2921                         break;
2922                 }
2923
2924                 case NT_TRANSACT_IOCTL:
2925                 {
2926                         START_PROFILE(NT_transact_ioctl);
2927                         call_nt_transact_ioctl(
2928                                 conn, req,
2929                                 &state->setup, state->setup_count,
2930                                 &state->param, state->total_param,
2931                                 &state->data, state->total_data,
2932                                 state->max_data_return);
2933                         END_PROFILE(NT_transact_ioctl);
2934                         break;
2935                 }
2936
2937                 case NT_TRANSACT_SET_SECURITY_DESC:
2938                 {
2939                         START_PROFILE(NT_transact_set_security_desc);
2940                         call_nt_transact_set_security_desc(
2941                                 conn, req,
2942                                 &state->setup, state->setup_count,
2943                                 &state->param, state->total_param,
2944                                 &state->data, state->total_data,
2945                                 state->max_data_return);
2946                         END_PROFILE(NT_transact_set_security_desc);
2947                         break;
2948                 }
2949
2950                 case NT_TRANSACT_NOTIFY_CHANGE:
2951                 {
2952                         START_PROFILE(NT_transact_notify_change);
2953                         call_nt_transact_notify_change(
2954                                 conn, req,
2955                                 &state->setup, state->setup_count,
2956                                 &state->param, state->total_param,
2957                                 &state->data, state->total_data,
2958                                 state->max_data_return,
2959                                 state->max_param_return);
2960                         END_PROFILE(NT_transact_notify_change);
2961                         break;
2962                 }
2963
2964                 case NT_TRANSACT_RENAME:
2965                 {
2966                         START_PROFILE(NT_transact_rename);
2967                         call_nt_transact_rename(
2968                                 conn, req,
2969                                 &state->setup, state->setup_count,
2970                                 &state->param, state->total_param,
2971                                 &state->data, state->total_data,
2972                                 state->max_data_return);
2973                         END_PROFILE(NT_transact_rename);
2974                         break;
2975                 }
2976
2977                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2978                 {
2979                         START_PROFILE(NT_transact_query_security_desc);
2980                         call_nt_transact_query_security_desc(
2981                                 conn, req,
2982                                 &state->setup, state->setup_count,
2983                                 &state->param, state->total_param,
2984                                 &state->data, state->total_data,
2985                                 state->max_data_return);
2986                         END_PROFILE(NT_transact_query_security_desc);
2987                         break;
2988                 }
2989
2990 #ifdef HAVE_SYS_QUOTAS
2991                 case NT_TRANSACT_GET_USER_QUOTA:
2992                 {
2993                         START_PROFILE(NT_transact_get_user_quota);
2994                         call_nt_transact_get_user_quota(
2995                                 conn, req,
2996                                 &state->setup, state->setup_count,
2997                                 &state->param, state->total_param,
2998                                 &state->data, state->total_data,
2999                                 state->max_data_return);
3000                         END_PROFILE(NT_transact_get_user_quota);
3001                         break;
3002                 }
3003
3004                 case NT_TRANSACT_SET_USER_QUOTA:
3005                 {
3006                         START_PROFILE(NT_transact_set_user_quota);
3007                         call_nt_transact_set_user_quota(
3008                                 conn, req,
3009                                 &state->setup, state->setup_count,
3010                                 &state->param, state->total_param,
3011                                 &state->data, state->total_data,
3012                                 state->max_data_return);
3013                         END_PROFILE(NT_transact_set_user_quota);
3014                         break;
3015                 }
3016 #endif /* HAVE_SYS_QUOTAS */
3017
3018                 default:
3019                         /* Error in request */
3020                         DEBUG(0,("handle_nttrans: Unknown request %d in "
3021                                  "nttrans call\n", state->call));
3022                         reply_doserror(req, ERRSRV, ERRerror);
3023                         return;
3024         }
3025         return;
3026 }
3027
3028 /****************************************************************************
3029  Reply to a SMBNTtrans.
3030 ****************************************************************************/
3031
3032 void reply_nttrans(connection_struct *conn, struct smb_request *req)
3033 {
3034         uint32 pscnt;
3035         uint32 psoff;
3036         uint32 dscnt;
3037         uint32 dsoff;
3038         uint16 function_code;
3039         NTSTATUS result;
3040         struct trans_state *state;
3041         int size;
3042
3043         START_PROFILE(SMBnttrans);
3044
3045         if (req->wct < 19) {
3046                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3047                 END_PROFILE(SMBnttrans);
3048                 return;
3049         }
3050
3051         size = smb_len(req->inbuf) + 4;
3052         pscnt = IVAL(req->inbuf,smb_nt_ParameterCount);
3053         psoff = IVAL(req->inbuf,smb_nt_ParameterOffset);
3054         dscnt = IVAL(req->inbuf,smb_nt_DataCount);
3055         dsoff = IVAL(req->inbuf,smb_nt_DataOffset);
3056         function_code = SVAL(req->inbuf, smb_nt_Function);
3057
3058         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3059                 reply_doserror(req, ERRSRV, ERRaccess);
3060                 END_PROFILE(SMBnttrans);
3061                 return;
3062         }
3063
3064         result = allow_new_trans(conn->pending_trans, req->mid);
3065         if (!NT_STATUS_IS_OK(result)) {
3066                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3067                 reply_nterror(req, result);
3068                 END_PROFILE(SMBnttrans);
3069                 return;
3070         }
3071
3072         if ((state = TALLOC_P(conn->mem_ctx, struct trans_state)) == NULL) {
3073                 reply_doserror(req, ERRSRV, ERRaccess);
3074                 END_PROFILE(SMBnttrans);
3075                 return;
3076         }
3077
3078         state->cmd = SMBnttrans;
3079
3080         state->mid = req->mid;
3081         state->vuid = req->vuid;
3082         state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount);
3083         state->data = NULL;
3084         state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount);
3085         state->param = NULL;
3086         state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount);
3087         state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount);
3088
3089         /* setup count is in *words* */
3090         state->setup_count = 2*CVAL(req->inbuf,smb_nt_SetupCount);
3091         state->setup = NULL;
3092         state->call = function_code;
3093
3094         /*
3095          * All nttrans messages we handle have smb_wct == 19 +
3096          * state->setup_count.  Ensure this is so as a sanity check.
3097          */
3098
3099         if(req->wct != 19 + (state->setup_count/2)) {
3100                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3101                          req->wct, 19 + (state->setup_count/2)));
3102                 goto bad_param;
3103         }
3104
3105         /* Don't allow more than 128mb for each value. */
3106         if ((state->total_data > (1024*1024*128)) ||
3107             (state->total_param > (1024*1024*128))) {
3108                 reply_doserror(req, ERRDOS, ERRnomem);
3109                 END_PROFILE(SMBnttrans);
3110                 return;
3111         }
3112
3113         if ((dscnt > state->total_data) || (pscnt > state->total_param))
3114                 goto bad_param;
3115
3116         if (state->total_data)  {
3117                 /* Can't use talloc here, the core routines do realloc on the
3118                  * params and data. */
3119                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3120                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
3121                                  "bytes !\n", (unsigned int)state->total_data));
3122                         TALLOC_FREE(state);
3123                         reply_doserror(req, ERRDOS, ERRnomem);
3124                         END_PROFILE(SMBnttrans);
3125                         return;
3126                 }
3127                 if ((dsoff+dscnt < dsoff) || (dsoff+dscnt < dscnt))
3128                         goto bad_param;
3129                 if ((smb_base(req->inbuf)+dsoff+dscnt
3130                      > (char *)req->inbuf + size) ||
3131                     (smb_base(req->inbuf)+dsoff+dscnt < smb_base(req->inbuf)))
3132                         goto bad_param;
3133
3134                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3135         }
3136
3137         if (state->total_param) {
3138                 /* Can't use talloc here, the core routines do realloc on the
3139                  * params and data. */
3140                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3141                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
3142                                  "bytes !\n", (unsigned int)state->total_param));
3143                         SAFE_FREE(state->data);
3144                         TALLOC_FREE(state);
3145                         reply_doserror(req, ERRDOS, ERRnomem);
3146                         END_PROFILE(SMBnttrans);
3147                         return;
3148                 }
3149                 if ((psoff+pscnt < psoff) || (psoff+pscnt < pscnt))
3150                         goto bad_param;
3151                 if ((smb_base(req->inbuf)+psoff+pscnt
3152                      > (char *)req->inbuf + size) ||
3153                     (smb_base(req->inbuf)+psoff+pscnt < smb_base(req->inbuf)))
3154                         goto bad_param;
3155
3156                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3157         }
3158
3159         state->received_data  = dscnt;
3160         state->received_param = pscnt;
3161
3162         if(state->setup_count > 0) {
3163                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3164                           state->setup_count));
3165                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3166                 if (state->setup == NULL) {
3167                         DEBUG(0,("reply_nttrans : Out of memory\n"));
3168                         SAFE_FREE(state->data);
3169                         SAFE_FREE(state->param);
3170                         TALLOC_FREE(state);
3171                         reply_doserror(req, ERRDOS, ERRnomem);
3172                         END_PROFILE(SMBnttrans);
3173                         return;
3174                 }
3175
3176                 if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) ||
3177                     (smb_nt_SetupStart + state->setup_count < state->setup_count)) {
3178                         goto bad_param;
3179                 }
3180                 if (smb_nt_SetupStart + state->setup_count > size) {
3181                         goto bad_param;
3182                 }
3183
3184                 memcpy( state->setup, &req->inbuf[smb_nt_SetupStart],
3185                         state->setup_count);
3186                 dump_data(10, (uint8 *)state->setup, state->setup_count);
3187         }
3188
3189         if ((state->received_data == state->total_data) &&
3190             (state->received_param == state->total_param)) {
3191                 handle_nttrans(conn, state, req);
3192                 SAFE_FREE(state->param);
3193                 SAFE_FREE(state->data);
3194                 TALLOC_FREE(state);
3195                 END_PROFILE(SMBnttrans);
3196                 return;
3197         }
3198
3199         DLIST_ADD(conn->pending_trans, state);
3200
3201         /* We need to send an interim response then receive the rest
3202            of the parameter/data bytes */
3203         reply_outbuf(req, 0, 0);
3204         show_msg((char *)req->outbuf);
3205         END_PROFILE(SMBnttrans);
3206         return;
3207
3208   bad_param:
3209
3210         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3211         SAFE_FREE(state->data);
3212         SAFE_FREE(state->param);
3213         TALLOC_FREE(state);
3214         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3215         END_PROFILE(SMBnttrans);
3216         return;
3217 }
3218
3219 /****************************************************************************
3220  Reply to a SMBnttranss
3221  ****************************************************************************/
3222
3223 void reply_nttranss(connection_struct *conn, struct smb_request *req)
3224 {
3225         unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp;
3226         struct trans_state *state;
3227
3228         int size;
3229
3230         START_PROFILE(SMBnttranss);
3231
3232         show_msg((char *)req->inbuf);
3233
3234         if (req->wct < 18) {
3235                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3236                 END_PROFILE(SMBnttranss);
3237                 return;
3238         }
3239
3240         for (state = conn->pending_trans; state != NULL;
3241              state = state->next) {
3242                 if (state->mid == req->mid) {
3243                         break;
3244                 }
3245         }
3246
3247         if ((state == NULL) || (state->cmd != SMBnttrans)) {
3248                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3249                 END_PROFILE(SMBnttranss);
3250                 return;
3251         }
3252
3253         /* Revise state->total_param and state->total_data in case they have
3254            changed downwards */
3255         if (IVAL(req->inbuf, smb_nts_TotalParameterCount)
3256             < state->total_param) {
3257                 state->total_param = IVAL(req->inbuf,
3258                                           smb_nts_TotalParameterCount);
3259         }
3260         if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) {
3261                 state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount);
3262         }
3263
3264         size = smb_len(req->inbuf) + 4;
3265
3266         pcnt = IVAL(req->inbuf,smb_nts_ParameterCount);
3267         poff = IVAL(req->inbuf, smb_nts_ParameterOffset);
3268         pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement);
3269
3270         dcnt = IVAL(req->inbuf, smb_nts_DataCount);
3271         ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement);
3272         doff = IVAL(req->inbuf, smb_nts_DataOffset);
3273
3274         state->received_param += pcnt;
3275         state->received_data += dcnt;
3276
3277         if ((state->received_data > state->total_data) ||
3278             (state->received_param > state->total_param))
3279                 goto bad_param;
3280
3281         if (pcnt) {
3282                 if (pdisp+pcnt > state->total_param)
3283                         goto bad_param;
3284                 if ((pdisp+pcnt < pdisp) || (pdisp+pcnt < pcnt))
3285                         goto bad_param;
3286                 if (pdisp > state->total_param)
3287                         goto bad_param;
3288                 if ((smb_base(req->inbuf) + poff + pcnt
3289                      > (char *)req->inbuf + size) ||
3290                     (smb_base(req->inbuf) + poff + pcnt
3291                      < smb_base(req->inbuf)))
3292                         goto bad_param;
3293                 if (state->param + pdisp < state->param)
3294                         goto bad_param;
3295
3296                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,
3297                        pcnt);
3298         }
3299
3300         if (dcnt) {
3301                 if (ddisp+dcnt > state->total_data)
3302                         goto bad_param;
3303                 if ((ddisp+dcnt < ddisp) || (ddisp+dcnt < dcnt))
3304                         goto bad_param;
3305                 if (ddisp > state->total_data)
3306                         goto bad_param;
3307                 if ((smb_base(req->inbuf) + doff + dcnt
3308                      > (char *)req->inbuf + size) ||
3309                     (smb_base(req->inbuf) + doff + dcnt
3310                      < smb_base(req->inbuf)))
3311                         goto bad_param;
3312                 if (state->data + ddisp < state->data)
3313                         goto bad_param;
3314
3315                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
3316                        dcnt);
3317         }
3318
3319         if ((state->received_param < state->total_param) ||
3320             (state->received_data < state->total_data)) {
3321                 END_PROFILE(SMBnttranss);
3322                 return;
3323         }
3324
3325         /*
3326          * construct_reply_common will copy smb_com from inbuf to
3327          * outbuf. SMBnttranss is wrong here.
3328          */
3329         SCVAL(req->inbuf,smb_com,SMBnttrans);
3330
3331         handle_nttrans(conn, state, req);
3332
3333         DLIST_REMOVE(conn->pending_trans, state);
3334         SAFE_FREE(state->data);
3335         SAFE_FREE(state->param);
3336         TALLOC_FREE(state);
3337         END_PROFILE(SMBnttranss);
3338         return;
3339
3340   bad_param:
3341
3342         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3343         DLIST_REMOVE(conn->pending_trans, state);
3344         SAFE_FREE(state->data);
3345         SAFE_FREE(state->param);
3346         TALLOC_FREE(state);
3347         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3348         END_PROFILE(SMBnttranss);
3349         return;
3350 }