source3/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 const struct generic_mapping file_generic_mapping;
  26
  27 static char *nttrans_realloc(char **ptr, size_t size)
  28 {
  29         if (ptr==NULL) {
  30                 smb_panic("nttrans_realloc() called with NULL ptr");
  31         }
  32
  33         *ptr = (char *)SMB_REALLOC(*ptr, size);
  34         if(*ptr == NULL) {
  35                 return NULL;
  36         }
  37         memset(*ptr,'\0',size);
  38         return *ptr;
  39 }
  40
  41 /****************************************************************************
  42  Send the required number of replies back.
  43  We assume all fields other than the data fields are
  44  set correctly for the type of call.
  45  HACK ! Always assumes smb_setup field is zero.
  46 ****************************************************************************/
  47
  48 void send_nt_replies(connection_struct *conn,
  49                         struct smb_request *req, NTSTATUS nt_error,
  50                      char *params, int paramsize,
  51                      char *pdata, int datasize)
  52 {
  53         int data_to_send = datasize;
  54         int params_to_send = paramsize;
  55         int useable_space;
  56         char *pp = params;
  57         char *pd = pdata;
  58         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  59         int alignment_offset = 3;
  60         int data_alignment_offset = 0;
  61
  62         /*
  63          * If there genuinely are no parameters or data to send just send
  64          * the empty packet.
  65          */
  66
  67         if(params_to_send == 0 && data_to_send == 0) {
  68                 reply_outbuf(req, 18, 0);
  69                 show_msg((char *)req->outbuf);
  70                 return;
  71         }
  72
  73         /*
  74          * When sending params and data ensure that both are nicely aligned.
  75          * Only do this alignment when there is also data to send - else
  76          * can cause NT redirector problems.
  77          */
  78
  79         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
  80                 data_alignment_offset = 4 - (params_to_send % 4);
  81         }
  82
  83         /*
  84          * Space is bufsize minus Netbios over TCP header minus SMB header.
  85          * The alignment_offset is to align the param bytes on a four byte
  86          * boundary (2 bytes for data len, one byte pad).
  87          * NT needs this to work correctly.
  88          */
  89
  90         useable_space = max_send - (smb_size
  91                                     + 2 * 18 /* wct */
  92                                     + alignment_offset
  93                                     + data_alignment_offset);
  94
  95         if (useable_space < 0) {
  96                 char *msg = talloc_asprintf(
  97                         talloc_tos(),
  98                         "send_nt_replies failed sanity useable_space = %d!!!",
  99                         useable_space);
 100                 DEBUG(0, ("%s\n", msg));
 101                 exit_server_cleanly(msg);
 102         }
 103
 104         while (params_to_send || data_to_send) {
 105
 106                 /*
 107                  * Calculate whether we will totally or partially fill this packet.
 108                  */
 109
 110                 total_sent_thistime = params_to_send + data_to_send;
 111
 112                 /*
 113                  * We can never send more than useable_space.
 114                  */
 115
 116                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 117
 118                 reply_outbuf(req, 18,
 119                              total_sent_thistime + alignment_offset
 120                              + data_alignment_offset);
 121
 122                 /*
 123                  * Set total params and data to be sent.
 124                  */
 125
 126                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 127                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 128
 129                 /*
 130                  * Calculate how many parameters and data we can fit into
 131                  * this packet. Parameters get precedence.
 132                  */
 133
 134                 params_sent_thistime = MIN(params_to_send,useable_space);
 135                 data_sent_thistime = useable_space - params_sent_thistime;
 136                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 137
 138                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 139                       params_sent_thistime);
 140
 141                 if(params_sent_thistime == 0) {
 142                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 143                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 144                 } else {
 145                         /*
 146                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 147                          * parameter bytes, however the first 4 bytes of outbuf are
 148                          * the Netbios over TCP header. Thus use smb_base() to subtract
 149                          * them from the calculation.
 150                          */
 151
 152                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 153                               ((smb_buf(req->outbuf)+alignment_offset)
 154                                - smb_base(req->outbuf)));
 155                         /*
 156                          * Absolute displacement of param bytes sent in this packet.
 157                          */
 158
 159                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 160                               pp - params);
 161                 }
 162
 163                 /*
 164                  * Deal with the data portion.
 165                  */
 166
 167                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 168
 169                 if(data_sent_thistime == 0) {
 170                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 171                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 172                 } else {
 173                         /*
 174                          * The offset of the data bytes is the offset of the
 175                          * parameter bytes plus the number of parameters being sent this time.
 176                          */
 177
 178                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 179                               ((smb_buf(req->outbuf)+alignment_offset) -
 180                                smb_base(req->outbuf))
 181                               + params_sent_thistime + data_alignment_offset);
 182                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 183                 }
 184
 185                 /*
 186                  * Copy the param bytes into the packet.
 187                  */
 188
 189                 if(params_sent_thistime) {
 190                         if (alignment_offset != 0) {
 191                                 memset(smb_buf(req->outbuf), 0,
 192                                        alignment_offset);
 193                         }
 194                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 195                                params_sent_thistime);
 196                 }
 197
 198                 /*
 199                  * Copy in the data bytes
 200                  */
 201
 202                 if(data_sent_thistime) {
 203                         if (data_alignment_offset != 0) {
 204                                 memset((smb_buf(req->outbuf)+alignment_offset+
 205                                         params_sent_thistime), 0,
 206                                        data_alignment_offset);
 207                         }
 208                         memcpy(smb_buf(req->outbuf)+alignment_offset
 209                                +params_sent_thistime+data_alignment_offset,
 210                                pd,data_sent_thistime);
 211                 }
 212
 213                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 214                         params_sent_thistime, data_sent_thistime, useable_space));
 215                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 216                         params_to_send, data_to_send, paramsize, datasize));
 217
 218                 if (NT_STATUS_V(nt_error)) {
 219                         error_packet_set((char *)req->outbuf,
 220                                          0, 0, nt_error,
 221                                          __LINE__,__FILE__);
 222                 }
 223
 224                 /* Send the packet */
 225                 show_msg((char *)req->outbuf);
 226                 if (!srv_send_smb(smbd_server_fd(),
 227                                 (char *)req->outbuf,
 228                                 IS_CONN_ENCRYPTED(conn))) {
 229                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 230                 }
 231
 232                 TALLOC_FREE(req->outbuf);
 233
 234                 pp += params_sent_thistime;
 235                 pd += data_sent_thistime;
 236
 237                 params_to_send -= params_sent_thistime;
 238                 data_to_send -= data_sent_thistime;
 239
 240                 /*
 241                  * Sanity check
 242                  */
 243
 244                 if(params_to_send < 0 || data_to_send < 0) {
 245                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 246                                 params_to_send, data_to_send));
 247                         exit_server_cleanly("send_nt_replies: internal error");
 248                 }
 249         }
 250 }
 251
 252 /****************************************************************************
 253  Is it an NTFS stream name ?
 254  An NTFS file name is <path>.<extention>:<stream name>:<stream type>
 255  $DATA can be used as both a stream name and a stream type. A missing stream
 256  name or type implies $DATA.
 257 ****************************************************************************/
 258
 259 bool is_ntfs_stream_name(const char *fname)
 260 {
 261         if (lp_posix_pathnames()) {
 262                 return False;
 263         }
 264         return (strchr_m(fname, ':') != NULL) ? True : False;
 265 }
 266
 267 /****************************************************************************
 268  Reply to an NT create and X call on a pipe
 269 ****************************************************************************/
 270
 271 static void nt_open_pipe(char *fname, connection_struct *conn,
 272                          struct smb_request *req, int *ppnum)
 273 {
 274         files_struct *fsp;
 275         NTSTATUS status;
 276
 277         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 278
 279         /* Strip \\ off the name. */
 280         fname++;
 281
 282         status = np_open(req, conn, fname, &fsp);
 283         if (!NT_STATUS_IS_OK(status)) {
 284                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 285                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 286                                         ERRDOS, ERRbadpipe);
 287                         return;
 288                 }
 289                 reply_nterror(req, status);
 290                 return;
 291         }
 292
 293         *ppnum = fsp->fnum;
 294         return;
 295 }
 296
 297 /****************************************************************************
 298  Reply to an NT create and X call for pipes.
 299 ****************************************************************************/
 300
 301 static void do_ntcreate_pipe_open(connection_struct *conn,
 302                                   struct smb_request *req)
 303 {
 304         char *fname = NULL;
 305         int pnum = -1;
 306         char *p = NULL;
 307         uint32 flags = IVAL(req->inbuf,smb_ntcreate_Flags);
 308         TALLOC_CTX *ctx = talloc_tos();
 309
 310         srvstr_pull_buf_talloc(ctx, (char *)req->inbuf, req->flags2, &fname,
 311                                req->buf, STR_TERMINATE);
 312
 313         if (!fname) {
 314                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 315                                 ERRDOS, ERRbadpipe);
 316                 return;
 317         }
 318         nt_open_pipe(fname, conn, req, &pnum);
 319
 320         if (req->outbuf) {
 321                 /* error reply */
 322                 return;
 323         }
 324
 325         /*
 326          * Deal with pipe return.
 327          */
 328
 329         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 330                 /* This is very strange. We
 331                  * return 50 words, but only set
 332                  * the wcnt to 42 ? It's definately
 333                  * what happens on the wire....
 334                  */
 335                 reply_outbuf(req, 50, 0);
 336                 SCVAL(req->outbuf,smb_wct,42);
 337         } else {
 338                 reply_outbuf(req, 34, 0);
 339         }
 340
 341         p = (char *)req->outbuf + smb_vwv2;
 342         p++;
 343         SSVAL(p,0,pnum);
 344         p += 2;
 345         SIVAL(p,0,FILE_WAS_OPENED);
 346         p += 4;
 347         p += 32;
 348         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 349         p += 20;
 350         /* File type. */
 351         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 352         /* Device state. */
 353         SSVAL(p,2, 0x5FF); /* ? */
 354         p += 4;
 355
 356         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 357                 p += 25;
 358                 SIVAL(p,0,FILE_GENERIC_ALL);
 359                 /*
 360                  * For pipes W2K3 seems to return
 361                  * 0x12019B next.
 362                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 363                  */
 364                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 365         }
 366
 367         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 368
 369         chain_reply(req);
 370 }
 371
 372 /****************************************************************************
 373  Reply to an NT create and X call.
 374 ****************************************************************************/
 375
 376 void reply_ntcreate_and_X(struct smb_request *req)
 377 {
 378         connection_struct *conn = req->conn;
 379         char *fname = NULL;
 380         uint32 flags;
 381         uint32 access_mask;
 382         uint32 file_attributes;
 383         uint32 share_access;
 384         uint32 create_disposition;
 385         uint32 create_options;
 386         uint16 root_dir_fid;
 387         uint64_t allocation_size;
 388         /* Breakout the oplock request bits so we can set the
 389            reply bits separately. */
 390         uint32 fattr=0;
 391         SMB_OFF_T file_len = 0;
 392         SMB_STRUCT_STAT sbuf;
 393         int info = 0;
 394         files_struct *fsp = NULL;
 395         char *p = NULL;
 396         struct timespec c_timespec;
 397         struct timespec a_timespec;
 398         struct timespec m_timespec;
 399         NTSTATUS status;
 400         int oplock_request;
 401         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 402         TALLOC_CTX *ctx = talloc_tos();
 403
 404         START_PROFILE(SMBntcreateX);
 405
 406         if (req->wct < 24) {
 407                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 408                 return;
 409         }
 410
 411         flags = IVAL(req->inbuf,smb_ntcreate_Flags);
 412         access_mask = IVAL(req->inbuf,smb_ntcreate_DesiredAccess);
 413         file_attributes = IVAL(req->inbuf,smb_ntcreate_FileAttributes);
 414         share_access = IVAL(req->inbuf,smb_ntcreate_ShareAccess);
 415         create_disposition = IVAL(req->inbuf,smb_ntcreate_CreateDisposition);
 416         create_options = IVAL(req->inbuf,smb_ntcreate_CreateOptions);
 417         root_dir_fid = (uint16)IVAL(req->inbuf,smb_ntcreate_RootDirectoryFid);
 418
 419         allocation_size = (uint64_t)IVAL(req->inbuf,
 420                                              smb_ntcreate_AllocationSize);
 421 #ifdef LARGE_SMB_OFF_T
 422         allocation_size |= (((uint64_t)IVAL(
 423                                      req->inbuf,
 424                                      smb_ntcreate_AllocationSize + 4)) << 32);
 425 #endif
 426
 427         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 428                             STR_TERMINATE, &status);
 429
 430         if (!NT_STATUS_IS_OK(status)) {
 431                 reply_nterror(req, status);
 432                 END_PROFILE(SMBntcreateX);
 433                 return;
 434         }
 435
 436         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 437                   "file_attributes = 0x%x, share_access = 0x%x, "
 438                   "create_disposition = 0x%x create_options = 0x%x "
 439                   "root_dir_fid = 0x%x, fname = %s\n",
 440                         (unsigned int)flags,
 441                         (unsigned int)access_mask,
 442                         (unsigned int)file_attributes,
 443                         (unsigned int)share_access,
 444                         (unsigned int)create_disposition,
 445                         (unsigned int)create_options,
 446                         (unsigned int)root_dir_fid,
 447                         fname));
 448
 449         /*
 450          * we need to remove ignored bits when they come directly from the client
 451          * because we reuse some of them for internal stuff
 452          */
 453         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 454
 455         /*
 456          * If it's an IPC, use the pipe handler.
 457          */
 458
 459         if (IS_IPC(conn)) {
 460                 if (lp_nt_pipe_support()) {
 461                         do_ntcreate_pipe_open(conn, req);
 462                         END_PROFILE(SMBntcreateX);
 463                         return;
 464                 }
 465                 reply_doserror(req, ERRDOS, ERRnoaccess);
 466                 END_PROFILE(SMBntcreateX);
 467                 return;
 468         }
 469
 470         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 471         if (oplock_request) {
 472                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 473                         ? BATCH_OPLOCK : 0;
 474         }
 475
 476         status = create_file(conn, req, root_dir_fid, fname,
 477                              access_mask, share_access, create_disposition,
 478                              create_options, file_attributes, oplock_request,
 479                              allocation_size, NULL, NULL, &fsp, &info, &sbuf);
 480
 481         if (!NT_STATUS_IS_OK(status)) {
 482                 if (open_was_deferred(req->mid)) {
 483                         /* We have re-scheduled this call, no error. */
 484                         END_PROFILE(SMBntcreateX);
 485                         return;
 486                 }
 487                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
 488                         reply_botherror(req, status, ERRDOS, ERRfilexists);
 489                 }
 490                 else {
 491                         reply_nterror(req, status);
 492                 }
 493                 END_PROFILE(SMBntcreateX);
 494                 return;
 495         }
 496
 497         /*
 498          * If the caller set the extended oplock request bit
 499          * and we granted one (by whatever means) - set the
 500          * correct bit for extended oplock reply.
 501          */
 502
 503         if (oplock_request &&
 504             (lp_fake_oplocks(SNUM(conn))
 505              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 506
 507                 /*
 508                  * Exclusive oplock granted
 509                  */
 510
 511                 if (flags & REQUEST_BATCH_OPLOCK) {
 512                         oplock_granted = BATCH_OPLOCK_RETURN;
 513                 } else {
 514                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 515                 }
 516         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 517                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 518         } else {
 519                 oplock_granted = NO_OPLOCK_RETURN;
 520         }
 521
 522         file_len = sbuf.st_size;
 523         fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
 524         if (fattr == 0) {
 525                 fattr = FILE_ATTRIBUTE_NORMAL;
 526         }
 527
 528         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 529                 /* This is very strange. We
 530                  * return 50 words, but only set
 531                  * the wcnt to 42 ? It's definately
 532                  * what happens on the wire....
 533                  */
 534                 reply_outbuf(req, 50, 0);
 535                 SCVAL(req->outbuf,smb_wct,42);
 536         } else {
 537                 reply_outbuf(req, 34, 0);
 538         }
 539
 540         p = (char *)req->outbuf + smb_vwv2;
 541
 542         SCVAL(p, 0, oplock_granted);
 543
 544         p++;
 545         SSVAL(p,0,fsp->fnum);
 546         p += 2;
 547         if ((create_disposition == FILE_SUPERSEDE)
 548             && (info == FILE_WAS_OVERWRITTEN)) {
 549                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 550         } else {
 551                 SIVAL(p,0,info);
 552         }
 553         p += 4;
 554
 555         /* Create time. */
 556         c_timespec = get_create_timespec(
 557                 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
 558         a_timespec = get_atimespec(&sbuf);
 559         m_timespec = get_mtimespec(&sbuf);
 560
 561         if (lp_dos_filetime_resolution(SNUM(conn))) {
 562                 dos_filetime_timespec(&c_timespec);
 563                 dos_filetime_timespec(&a_timespec);
 564                 dos_filetime_timespec(&m_timespec);
 565         }
 566
 567         put_long_date_timespec(p, c_timespec); /* create time. */
 568         p += 8;
 569         put_long_date_timespec(p, a_timespec); /* access time */
 570         p += 8;
 571         put_long_date_timespec(p, m_timespec); /* write time */
 572         p += 8;
 573         put_long_date_timespec(p, m_timespec); /* change time */
 574         p += 8;
 575         SIVAL(p,0,fattr); /* File Attributes. */
 576         p += 4;
 577         SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
 578         p += 8;
 579         SOFF_T(p,0,file_len);
 580         p += 8;
 581         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 582                 SSVAL(p,2,0x7);
 583         }
 584         p += 4;
 585         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 586
 587         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 588                 uint32 perms = 0;
 589                 p += 25;
 590                 if (fsp->is_directory
 591                     || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
 592                         perms = FILE_GENERIC_ALL;
 593                 } else {
 594                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 595                 }
 596                 SIVAL(p,0,perms);
 597         }
 598
 599         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
 600                  fsp->fnum, fsp->fsp_name));
 601
 602         chain_reply(req);
 603         END_PROFILE(SMBntcreateX);
 604         return;
 605 }
 606
 607 /****************************************************************************
 608  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 609 ****************************************************************************/
 610
 611 static void do_nt_transact_create_pipe(connection_struct *conn,
 612                                        struct smb_request *req,
 613                                        uint16 **ppsetup, uint32 setup_count,
 614                                        char **ppparams, uint32 parameter_count,
 615                                        char **ppdata, uint32 data_count)
 616 {
 617         char *fname = NULL;
 618         char *params = *ppparams;
 619         int pnum = -1;
 620         char *p = NULL;
 621         NTSTATUS status;
 622         size_t param_len;
 623         uint32 flags;
 624         TALLOC_CTX *ctx = talloc_tos();
 625
 626         /*
 627          * Ensure minimum number of parameters sent.
 628          */
 629
 630         if(parameter_count < 54) {
 631                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 632                 reply_doserror(req, ERRDOS, ERRnoaccess);
 633                 return;
 634         }
 635
 636         flags = IVAL(params,0);
 637
 638         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
 639                         parameter_count-53, STR_TERMINATE,
 640                         &status);
 641         if (!NT_STATUS_IS_OK(status)) {
 642                 reply_nterror(req, status);
 643                 return;
 644         }
 645
 646         nt_open_pipe(fname, conn, req, &pnum);
 647
 648         if (req->outbuf) {
 649                 /* Error return */
 650                 return;
 651         }
 652
 653         /* Realloc the size of parameters and data we will return */
 654         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 655                 /* Extended response is 32 more byyes. */
 656                 param_len = 101;
 657         } else {
 658                 param_len = 69;
 659         }
 660         params = nttrans_realloc(ppparams, param_len);
 661         if(params == NULL) {
 662                 reply_doserror(req, ERRDOS, ERRnomem);
 663                 return;
 664         }
 665
 666         p = params;
 667         SCVAL(p,0,NO_OPLOCK_RETURN);
 668
 669         p += 2;
 670         SSVAL(p,0,pnum);
 671         p += 2;
 672         SIVAL(p,0,FILE_WAS_OPENED);
 673         p += 8;
 674
 675         p += 32;
 676         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 677         p += 20;
 678         /* File type. */
 679         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 680         /* Device state. */
 681         SSVAL(p,2, 0x5FF); /* ? */
 682         p += 4;
 683
 684         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 685                 p += 25;
 686                 SIVAL(p,0,FILE_GENERIC_ALL);
 687                 /*
 688                  * For pipes W2K3 seems to return
 689                  * 0x12019B next.
 690                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 691                  */
 692                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 693         }
 694
 695         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 696
 697         /* Send the required number of replies */
 698         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 699
 700         return;
 701 }
 702
 703 /****************************************************************************
 704  Internal fn to set security descriptors.
 705 ****************************************************************************/
 706
 707 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
 708                        uint32 security_info_sent)
 709 {
 710         SEC_DESC *psd = NULL;
 711         NTSTATUS status;
 712
 713         if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
 714                 return NT_STATUS_OK;
 715         }
 716
 717         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 718
 719         if (!NT_STATUS_IS_OK(status)) {
 720                 return status;
 721         }
 722
 723         if (psd->owner_sid==0) {
 724                 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
 725         }
 726         if (psd->group_sid==0) {
 727                 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
 728         }
 729         if (psd->sacl==0) {
 730                 security_info_sent &= ~SACL_SECURITY_INFORMATION;
 731         }
 732         if (psd->dacl==0) {
 733                 security_info_sent &= ~DACL_SECURITY_INFORMATION;
 734         }
 735
 736         /* Convert all the generic bits. */
 737         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 738         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 739
 740         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 741
 742         TALLOC_FREE(psd);
 743
 744         return status;
 745 }
 746
 747 /****************************************************************************
 748  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
 749 ****************************************************************************/
 750
 751 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
 752 {
 753         struct ea_list *ea_list_head = NULL;
 754         size_t offset = 0;
 755
 756         if (data_size < 4) {
 757                 return NULL;
 758         }
 759
 760         while (offset + 4 <= data_size) {
 761                 size_t next_offset = IVAL(pdata,offset);
 762                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
 763
 764                 if (!eal) {
 765                         return NULL;
 766                 }
 767
 768                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
 769                 if (next_offset == 0) {
 770                         break;
 771                 }
 772                 offset += next_offset;
 773         }
 774
 775         return ea_list_head;
 776 }
 777
 778 /****************************************************************************
 779  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
 780 ****************************************************************************/
 781
 782 static void call_nt_transact_create(connection_struct *conn,
 783                                     struct smb_request *req,
 784                                     uint16 **ppsetup, uint32 setup_count,
 785                                     char **ppparams, uint32 parameter_count,
 786                                     char **ppdata, uint32 data_count,
 787                                     uint32 max_data_count)
 788 {
 789         char *fname = NULL;
 790         char *params = *ppparams;
 791         char *data = *ppdata;
 792         /* Breakout the oplock request bits so we can set the reply bits separately. */
 793         uint32 fattr=0;
 794         SMB_OFF_T file_len = 0;
 795         SMB_STRUCT_STAT sbuf;
 796         int info = 0;
 797         files_struct *fsp = NULL;
 798         char *p = NULL;
 799         uint32 flags;
 800         uint32 access_mask;
 801         uint32 file_attributes;
 802         uint32 share_access;
 803         uint32 create_disposition;
 804         uint32 create_options;
 805         uint32 sd_len;
 806         struct security_descriptor *sd = NULL;
 807         uint32 ea_len;
 808         uint16 root_dir_fid;
 809         struct timespec c_timespec;
 810         struct timespec a_timespec;
 811         struct timespec m_timespec;
 812         struct ea_list *ea_list = NULL;
 813         NTSTATUS status;
 814         size_t param_len;
 815         uint64_t allocation_size;
 816         int oplock_request;
 817         uint8_t oplock_granted;
 818         TALLOC_CTX *ctx = talloc_tos();
 819
 820         DEBUG(5,("call_nt_transact_create\n"));
 821
 822         /*
 823          * If it's an IPC, use the pipe handler.
 824          */
 825
 826         if (IS_IPC(conn)) {
 827                 if (lp_nt_pipe_support()) {
 828                         do_nt_transact_create_pipe(
 829                                 conn, req,
 830                                 ppsetup, setup_count,
 831                                 ppparams, parameter_count,
 832                                 ppdata, data_count);
 833                         return;
 834                 }
 835                 reply_doserror(req, ERRDOS, ERRnoaccess);
 836                 return;
 837         }
 838
 839         /*
 840          * Ensure minimum number of parameters sent.
 841          */
 842
 843         if(parameter_count < 54) {
 844                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 845                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 846                 return;
 847         }
 848
 849         flags = IVAL(params,0);
 850         access_mask = IVAL(params,8);
 851         file_attributes = IVAL(params,20);
 852         share_access = IVAL(params,24);
 853         create_disposition = IVAL(params,28);
 854         create_options = IVAL(params,32);
 855         sd_len = IVAL(params,36);
 856         ea_len = IVAL(params,40);
 857         root_dir_fid = (uint16)IVAL(params,4);
 858         allocation_size = (uint64_t)IVAL(params,12);
 859 #ifdef LARGE_SMB_OFF_T
 860         allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
 861 #endif
 862
 863         /*
 864          * we need to remove ignored bits when they come directly from the client
 865          * because we reuse some of them for internal stuff
 866          */
 867         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 868
 869         /* Ensure the data_len is correct for the sd and ea values given. */
 870         if ((ea_len + sd_len > data_count)
 871             || (ea_len > data_count) || (sd_len > data_count)
 872             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
 873                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
 874                            "%u, data_count = %u\n", (unsigned int)ea_len,
 875                            (unsigned int)sd_len, (unsigned int)data_count));
 876                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 877                 return;
 878         }
 879
 880         if (sd_len) {
 881                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
 882                            sd_len));
 883
 884                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
 885                                              &sd);
 886                 if (!NT_STATUS_IS_OK(status)) {
 887                         DEBUG(10, ("call_nt_transact_create: "
 888                                    "unmarshall_sec_desc failed: %s\n",
 889                                    nt_errstr(status)));
 890                         reply_nterror(req, status);
 891                         return;
 892                 }
 893         }
 894
 895         if (ea_len) {
 896                 if (!lp_ea_support(SNUM(conn))) {
 897                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
 898                                    "EA's not supported.\n",
 899                                    (unsigned int)ea_len));
 900                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
 901                         return;
 902                 }
 903
 904                 if (ea_len < 10) {
 905                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
 906                                   "too small (should be more than 10)\n",
 907                                   (unsigned int)ea_len ));
 908                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 909                         return;
 910                 }
 911
 912                 /* We have already checked that ea_len <= data_count here. */
 913                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
 914                                                ea_len);
 915                 if (ea_list == NULL) {
 916                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 917                         return;
 918                 }
 919         }
 920
 921         srvstr_get_path(ctx, params, req->flags2, &fname,
 922                         params+53, parameter_count-53,
 923                         STR_TERMINATE, &status);
 924         if (!NT_STATUS_IS_OK(status)) {
 925                 reply_nterror(req, status);
 926                 return;
 927         }
 928
 929         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 930         if (oplock_request) {
 931                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 932                         ? BATCH_OPLOCK : 0;
 933         }
 934
 935         status = create_file(conn, req, root_dir_fid, fname,
 936                              access_mask, share_access, create_disposition,
 937                              create_options, file_attributes, oplock_request,
 938                              allocation_size, sd, ea_list, &fsp, &info, &sbuf);
 939
 940         if(!NT_STATUS_IS_OK(status)) {
 941                 if (open_was_deferred(req->mid)) {
 942                         /* We have re-scheduled this call, no error. */
 943                         return;
 944                 }
 945                 reply_openerror(req, status);
 946                 return;
 947         }
 948
 949         /*
 950          * If the caller set the extended oplock request bit
 951          * and we granted one (by whatever means) - set the
 952          * correct bit for extended oplock reply.
 953          */
 954
 955         if (oplock_request &&
 956             (lp_fake_oplocks(SNUM(conn))
 957              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 958
 959                 /*
 960                  * Exclusive oplock granted
 961                  */
 962
 963                 if (flags & REQUEST_BATCH_OPLOCK) {
 964                         oplock_granted = BATCH_OPLOCK_RETURN;
 965                 } else {
 966                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 967                 }
 968         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 969                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 970         } else {
 971                 oplock_granted = NO_OPLOCK_RETURN;
 972         }
 973
 974         file_len = sbuf.st_size;
 975         fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
 976         if (fattr == 0) {
 977                 fattr = FILE_ATTRIBUTE_NORMAL;
 978         }
 979
 980         /* Realloc the size of parameters and data we will return */
 981         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 982                 /* Extended response is 32 more byyes. */
 983                 param_len = 101;
 984         } else {
 985                 param_len = 69;
 986         }
 987         params = nttrans_realloc(ppparams, param_len);
 988         if(params == NULL) {
 989                 reply_doserror(req, ERRDOS, ERRnomem);
 990                 return;
 991         }
 992
 993         p = params;
 994         SCVAL(p, 0, oplock_granted);
 995
 996         p += 2;
 997         SSVAL(p,0,fsp->fnum);
 998         p += 2;
 999         if ((create_disposition == FILE_SUPERSEDE)
1000             && (info == FILE_WAS_OVERWRITTEN)) {
1001                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1002         } else {
1003                 SIVAL(p,0,info);
1004         }
1005         p += 8;
1006
1007         /* Create time. */
1008         c_timespec = get_create_timespec(
1009                 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1010         a_timespec = get_atimespec(&sbuf);
1011         m_timespec = get_mtimespec(&sbuf);
1012
1013         if (lp_dos_filetime_resolution(SNUM(conn))) {
1014                 dos_filetime_timespec(&c_timespec);
1015                 dos_filetime_timespec(&a_timespec);
1016                 dos_filetime_timespec(&m_timespec);
1017         }
1018
1019         put_long_date_timespec(p, c_timespec); /* create time. */
1020         p += 8;
1021         put_long_date_timespec(p, a_timespec); /* access time */
1022         p += 8;
1023         put_long_date_timespec(p, m_timespec); /* write time */
1024         p += 8;
1025         put_long_date_timespec(p, m_timespec); /* change time */
1026         p += 8;
1027         SIVAL(p,0,fattr); /* File Attributes. */
1028         p += 4;
1029         SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
1030         p += 8;
1031         SOFF_T(p,0,file_len);
1032         p += 8;
1033         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1034                 SSVAL(p,2,0x7);
1035         }
1036         p += 4;
1037         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1038
1039         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1040                 uint32 perms = 0;
1041                 p += 25;
1042                 if (fsp->is_directory
1043                     || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1044                         perms = FILE_GENERIC_ALL;
1045                 } else {
1046                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1047                 }
1048                 SIVAL(p,0,perms);
1049         }
1050
1051         DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1052
1053         /* Send the required number of replies */
1054         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1055
1056         return;
1057 }
1058
1059 /****************************************************************************
1060  Reply to a NT CANCEL request.
1061  conn POINTER CAN BE NULL HERE !
1062 ****************************************************************************/
1063
1064 void reply_ntcancel(struct smb_request *req)
1065 {
1066         /*
1067          * Go through and cancel any pending change notifies.
1068          */
1069
1070         START_PROFILE(SMBntcancel);
1071         remove_pending_change_notify_requests_by_mid(req->mid);
1072         remove_pending_lock_requests_by_mid(req->mid);
1073         srv_cancel_sign_response(req->mid);
1074
1075         DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1076
1077         END_PROFILE(SMBntcancel);
1078         return;
1079 }
1080
1081 /****************************************************************************
1082  Copy a file.
1083 ****************************************************************************/
1084
1085 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1086                                 connection_struct *conn,
1087                                 struct smb_request *req,
1088                                 const char *oldname_in,
1089                                 const char *newname_in,
1090                                 uint32 attrs)
1091 {
1092         SMB_STRUCT_STAT sbuf1, sbuf2;
1093         char *oldname = NULL;
1094         char *newname = NULL;
1095         char *last_component_oldname = NULL;
1096         char *last_component_newname = NULL;
1097         files_struct *fsp1,*fsp2;
1098         uint32 fattr;
1099         int info;
1100         SMB_OFF_T ret=-1;
1101         NTSTATUS status = NT_STATUS_OK;
1102
1103         ZERO_STRUCT(sbuf1);
1104         ZERO_STRUCT(sbuf2);
1105
1106         if (!CAN_WRITE(conn)) {
1107                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1108         }
1109
1110         status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1111                         &last_component_oldname, &sbuf1);
1112         if (!NT_STATUS_IS_OK(status)) {
1113                 return status;
1114         }
1115
1116         status = check_name(conn, oldname);
1117         if (!NT_STATUS_IS_OK(status)) {
1118                 return status;
1119         }
1120
1121         /* Source must already exist. */
1122         if (!VALID_STAT(sbuf1)) {
1123                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1124         }
1125         /* Ensure attributes match. */
1126         fattr = dos_mode(conn,oldname,&sbuf1);
1127         if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1128                 return NT_STATUS_NO_SUCH_FILE;
1129         }
1130
1131         status = unix_convert(ctx, conn, newname_in, False, &newname,
1132                         &last_component_newname, &sbuf2);
1133         if (!NT_STATUS_IS_OK(status)) {
1134                 return status;
1135         }
1136
1137         status = check_name(conn, newname);
1138         if (!NT_STATUS_IS_OK(status)) {
1139                 return status;
1140         }
1141
1142         /* Disallow if newname already exists. */
1143         if (VALID_STAT(sbuf2)) {
1144                 return NT_STATUS_OBJECT_NAME_COLLISION;
1145         }
1146
1147         /* No links from a directory. */
1148         if (S_ISDIR(sbuf1.st_mode)) {
1149                 return NT_STATUS_FILE_IS_A_DIRECTORY;
1150         }
1151
1152         /* Ensure this is within the share. */
1153         status = check_reduced_name(conn, oldname);
1154         if (!NT_STATUS_IS_OK(status)) {
1155                 return status;
1156         }
1157
1158         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1159                                 oldname, newname));
1160
1161         status = open_file_ntcreate(conn, req, oldname, &sbuf1,
1162                         FILE_READ_DATA, /* Read-only. */
1163                         FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1164                         FILE_OPEN,
1165                         0, /* No create options. */
1166                         FILE_ATTRIBUTE_NORMAL,
1167                         NO_OPLOCK,
1168                         &info, &fsp1);
1169
1170         if (!NT_STATUS_IS_OK(status)) {
1171                 return status;
1172         }
1173
1174         status = open_file_ntcreate(conn, req, newname, &sbuf2,
1175                         FILE_WRITE_DATA, /* Read-only. */
1176                         FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1177                         FILE_CREATE,
1178                         0, /* No create options. */
1179                         fattr,
1180                         NO_OPLOCK,
1181                         &info, &fsp2);
1182
1183         if (!NT_STATUS_IS_OK(status)) {
1184                 close_file(NULL, fsp1, ERROR_CLOSE);
1185                 return status;
1186         }
1187
1188         if (sbuf1.st_size) {
1189                 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1190         }
1191
1192         /*
1193          * As we are opening fsp1 read-only we only expect
1194          * an error on close on fsp2 if we are out of space.
1195          * Thus we don't look at the error return from the
1196          * close of fsp1.
1197          */
1198         close_file(NULL, fsp1, NORMAL_CLOSE);
1199
1200         /* Ensure the modtime is set correctly on the destination file. */
1201         set_close_write_time(fsp2, get_mtimespec(&sbuf1));
1202
1203         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1204
1205         /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1206            creates the file. This isn't the correct thing to do in the copy
1207            case. JRA */
1208         file_set_dosmode(conn, newname, fattr, &sbuf2,
1209                          parent_dirname(newname),false);
1210
1211         if (ret < (SMB_OFF_T)sbuf1.st_size) {
1212                 return NT_STATUS_DISK_FULL;
1213         }
1214
1215         if (!NT_STATUS_IS_OK(status)) {
1216                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1217                         nt_errstr(status), oldname, newname));
1218         }
1219         return status;
1220 }
1221
1222 /****************************************************************************
1223  Reply to a NT rename request.
1224 ****************************************************************************/
1225
1226 void reply_ntrename(struct smb_request *req)
1227 {
1228         connection_struct *conn = req->conn;
1229         char *oldname = NULL;
1230         char *newname = NULL;
1231         const char *p;
1232         NTSTATUS status;
1233         bool src_has_wcard = False;
1234         bool dest_has_wcard = False;
1235         uint32 attrs;
1236         uint16 rename_type;
1237         TALLOC_CTX *ctx = talloc_tos();
1238
1239         START_PROFILE(SMBntrename);
1240
1241         if (req->wct < 4) {
1242                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1243                 END_PROFILE(SMBntrename);
1244                 return;
1245         }
1246
1247         attrs = SVAL(req->inbuf,smb_vwv0);
1248         rename_type = SVAL(req->inbuf,smb_vwv1);
1249
1250         p = (const char *)req->buf + 1;
1251         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1252                                        &status, &src_has_wcard);
1253         if (!NT_STATUS_IS_OK(status)) {
1254                 reply_nterror(req, status);
1255                 END_PROFILE(SMBntrename);
1256                 return;
1257         }
1258
1259         if( is_ntfs_stream_name(oldname)) {
1260                 /* Can't rename a stream. */
1261                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1262                 END_PROFILE(SMBntrename);
1263                 return;
1264         }
1265
1266         if (ms_has_wild(oldname)) {
1267                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1268                 END_PROFILE(SMBntrename);
1269                 return;
1270         }
1271
1272         p++;
1273         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1274                                        &status, &dest_has_wcard);
1275         if (!NT_STATUS_IS_OK(status)) {
1276                 reply_nterror(req, status);
1277                 END_PROFILE(SMBntrename);
1278                 return;
1279         }
1280
1281         status = resolve_dfspath(ctx, conn,
1282                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1283                                 oldname,
1284                                 &oldname);
1285         if (!NT_STATUS_IS_OK(status)) {
1286                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1287                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1288                                         ERRSRV, ERRbadpath);
1289                         END_PROFILE(SMBntrename);
1290                         return;
1291                 }
1292                 reply_nterror(req, status);
1293                 END_PROFILE(SMBntrename);
1294                 return;
1295         }
1296
1297         status = resolve_dfspath(ctx, conn,
1298                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1299                                 newname,
1300                                 &newname);
1301         if (!NT_STATUS_IS_OK(status)) {
1302                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1303                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1304                                         ERRSRV, ERRbadpath);
1305                         END_PROFILE(SMBntrename);
1306                         return;
1307                 }
1308                 reply_nterror(req, status);
1309                 END_PROFILE(SMBntrename);
1310                 return;
1311         }
1312
1313         DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1314
1315         switch(rename_type) {
1316                 case RENAME_FLAG_RENAME:
1317                         status = rename_internals(ctx, conn, req, oldname,
1318                                         newname, attrs, False, src_has_wcard,
1319                                         dest_has_wcard, DELETE_ACCESS);
1320                         break;
1321                 case RENAME_FLAG_HARD_LINK:
1322                         if (src_has_wcard || dest_has_wcard) {
1323                                 /* No wildcards. */
1324                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1325                         } else {
1326                                 status = hardlink_internals(ctx,
1327                                                 conn,
1328                                                 oldname,
1329                                                 newname);
1330                         }
1331                         break;
1332                 case RENAME_FLAG_COPY:
1333                         if (src_has_wcard || dest_has_wcard) {
1334                                 /* No wildcards. */
1335                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1336                         } else {
1337                                 status = copy_internals(ctx, conn, req, oldname,
1338                                                         newname, attrs);
1339                         }
1340                         break;
1341                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1342                         status = NT_STATUS_INVALID_PARAMETER;
1343                         break;
1344                 default:
1345                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1346                         break;
1347         }
1348
1349         if (!NT_STATUS_IS_OK(status)) {
1350                 if (open_was_deferred(req->mid)) {
1351                         /* We have re-scheduled this call. */
1352                         END_PROFILE(SMBntrename);
1353                         return;
1354                 }
1355
1356                 reply_nterror(req, status);
1357                 END_PROFILE(SMBntrename);
1358                 return;
1359         }
1360
1361         reply_outbuf(req, 0, 0);
1362
1363         END_PROFILE(SMBntrename);
1364         return;
1365 }
1366
1367 /****************************************************************************
1368  Reply to a notify change - queue the request and
1369  don't allow a directory to be opened.
1370 ****************************************************************************/
1371
1372 static void call_nt_transact_notify_change(connection_struct *conn,
1373                                            struct smb_request *req,
1374                                            uint16 **ppsetup,
1375                                            uint32 setup_count,
1376                                            char **ppparams,
1377                                            uint32 parameter_count,
1378                                            char **ppdata, uint32 data_count,
1379                                            uint32 max_data_count,
1380                                            uint32 max_param_count)
1381 {
1382         uint16 *setup = *ppsetup;
1383         files_struct *fsp;
1384         uint32 filter;
1385         NTSTATUS status;
1386         bool recursive;
1387
1388         if(setup_count < 6) {
1389                 reply_doserror(req, ERRDOS, ERRbadfunc);
1390                 return;
1391         }
1392
1393         fsp = file_fsp(req, SVAL(setup,4));
1394         filter = IVAL(setup, 0);
1395         recursive = (SVAL(setup, 6) != 0) ? True : False;
1396
1397         DEBUG(3,("call_nt_transact_notify_change\n"));
1398
1399         if(!fsp) {
1400                 reply_doserror(req, ERRDOS, ERRbadfid);
1401                 return;
1402         }
1403
1404         {
1405                 char *filter_string;
1406
1407                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1408                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1409                         return;
1410                 }
1411
1412                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1413                          "called on %s, filter = %s, recursive = %d\n",
1414                          fsp->fsp_name, filter_string, recursive));
1415
1416                 TALLOC_FREE(filter_string);
1417         }
1418
1419         if((!fsp->is_directory) || (conn != fsp->conn)) {
1420                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1421                 return;
1422         }
1423
1424         if (fsp->notify == NULL) {
1425
1426                 status = change_notify_create(fsp, filter, recursive);
1427
1428                 if (!NT_STATUS_IS_OK(status)) {
1429                         DEBUG(10, ("change_notify_create returned %s\n",
1430                                    nt_errstr(status)));
1431                         reply_nterror(req, status);
1432                         return;
1433                 }
1434         }
1435
1436         if (fsp->notify->num_changes != 0) {
1437
1438                 /*
1439                  * We've got changes pending, respond immediately
1440                  */
1441
1442                 /*
1443                  * TODO: write a torture test to check the filtering behaviour
1444                  * here.
1445                  */
1446
1447                 change_notify_reply(fsp->conn, req->inbuf, max_param_count, fsp->notify);
1448
1449                 /*
1450                  * change_notify_reply() above has independently sent its
1451                  * results
1452                  */
1453                 return;
1454         }
1455
1456         /*
1457          * No changes pending, queue the request
1458          */
1459
1460         status = change_notify_add_request(req,
1461                         max_param_count,
1462                         filter,
1463                         recursive, fsp);
1464         if (!NT_STATUS_IS_OK(status)) {
1465                 reply_nterror(req, status);
1466         }
1467         return;
1468 }
1469
1470 /****************************************************************************
1471  Reply to an NT transact rename command.
1472 ****************************************************************************/
1473
1474 static void call_nt_transact_rename(connection_struct *conn,
1475                                     struct smb_request *req,
1476                                     uint16 **ppsetup, uint32 setup_count,
1477                                     char **ppparams, uint32 parameter_count,
1478                                     char **ppdata, uint32 data_count,
1479                                     uint32 max_data_count)
1480 {
1481         char *params = *ppparams;
1482         char *new_name = NULL;
1483         files_struct *fsp = NULL;
1484         bool dest_has_wcard = False;
1485         NTSTATUS status;
1486         TALLOC_CTX *ctx = talloc_tos();
1487
1488         if(parameter_count < 5) {
1489                 reply_doserror(req, ERRDOS, ERRbadfunc);
1490                 return;
1491         }
1492
1493         fsp = file_fsp(req, SVAL(params, 0));
1494         if (!check_fsp(conn, req, fsp)) {
1495                 return;
1496         }
1497         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1498                               parameter_count - 4,
1499                               STR_TERMINATE, &status, &dest_has_wcard);
1500         if (!NT_STATUS_IS_OK(status)) {
1501                 reply_nterror(req, status);
1502                 return;
1503         }
1504
1505         /*
1506          * W2K3 ignores this request as the RAW-RENAME test
1507          * demonstrates, so we do.
1508          */
1509         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1510
1511         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1512                  fsp->fsp_name, new_name));
1513
1514         return;
1515 }
1516
1517 /******************************************************************************
1518  Fake up a completely empty SD.
1519 *******************************************************************************/
1520
1521 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1522 {
1523         size_t sd_size;
1524
1525         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1526         if(!*ppsd) {
1527                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1528                 return NT_STATUS_NO_MEMORY;
1529         }
1530
1531         return NT_STATUS_OK;
1532 }
1533
1534 /****************************************************************************
1535  Reply to query a security descriptor.
1536 ****************************************************************************/
1537
1538 static void call_nt_transact_query_security_desc(connection_struct *conn,
1539                                                  struct smb_request *req,
1540                                                  uint16 **ppsetup,
1541                                                  uint32 setup_count,
1542                                                  char **ppparams,
1543                                                  uint32 parameter_count,
1544                                                  char **ppdata,
1545                                                  uint32 data_count,
1546                                                  uint32 max_data_count)
1547 {
1548         char *params = *ppparams;
1549         char *data = *ppdata;
1550         SEC_DESC *psd = NULL;
1551         size_t sd_size;
1552         uint32 security_info_wanted;
1553         files_struct *fsp = NULL;
1554         NTSTATUS status;
1555         DATA_BLOB blob;
1556
1557         if(parameter_count < 8) {
1558                 reply_doserror(req, ERRDOS, ERRbadfunc);
1559                 return;
1560         }
1561
1562         fsp = file_fsp(req, SVAL(params,0));
1563         if(!fsp) {
1564                 reply_doserror(req, ERRDOS, ERRbadfid);
1565                 return;
1566         }
1567
1568         security_info_wanted = IVAL(params,4);
1569
1570         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1571                         (unsigned int)security_info_wanted ));
1572
1573         params = nttrans_realloc(ppparams, 4);
1574         if(params == NULL) {
1575                 reply_doserror(req, ERRDOS, ERRnomem);
1576                 return;
1577         }
1578
1579         /*
1580          * Get the permissions to return.
1581          */
1582
1583         if (!lp_nt_acl_support(SNUM(conn))) {
1584                 status = get_null_nt_acl(talloc_tos(), &psd);
1585         } else {
1586                 status = SMB_VFS_FGET_NT_ACL(
1587                         fsp, security_info_wanted, &psd);
1588         }
1589
1590         if (!NT_STATUS_IS_OK(status)) {
1591                 reply_nterror(req, status);
1592                 return;
1593         }
1594
1595         sd_size = ndr_size_security_descriptor(psd, 0);
1596
1597         DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1598
1599         SIVAL(params,0,(uint32)sd_size);
1600
1601         if (max_data_count < sd_size) {
1602                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1603                                 params, 4, *ppdata, 0);
1604                 return;
1605         }
1606
1607         /*
1608          * Allocate the data we will point this at.
1609          */
1610
1611         data = nttrans_realloc(ppdata, sd_size);
1612         if(data == NULL) {
1613                 reply_doserror(req, ERRDOS, ERRnomem);
1614                 return;
1615         }
1616
1617         status = marshall_sec_desc(talloc_tos(), psd,
1618                                    &blob.data, &blob.length);
1619
1620         if (!NT_STATUS_IS_OK(status)) {
1621                 reply_nterror(req, status);
1622                 return;
1623         }
1624
1625         SMB_ASSERT(sd_size == blob.length);
1626         memcpy(data, blob.data, sd_size);
1627
1628         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1629
1630         return;
1631 }
1632
1633 /****************************************************************************
1634  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1635 ****************************************************************************/
1636
1637 static void call_nt_transact_set_security_desc(connection_struct *conn,
1638                                                struct smb_request *req,
1639                                                uint16 **ppsetup,
1640                                                uint32 setup_count,
1641                                                char **ppparams,
1642                                                uint32 parameter_count,
1643                                                char **ppdata,
1644                                                uint32 data_count,
1645                                                uint32 max_data_count)
1646 {
1647         char *params= *ppparams;
1648         char *data = *ppdata;
1649         files_struct *fsp = NULL;
1650         uint32 security_info_sent = 0;
1651         NTSTATUS status;
1652
1653         if(parameter_count < 8) {
1654                 reply_doserror(req, ERRDOS, ERRbadfunc);
1655                 return;
1656         }
1657
1658         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1659                 reply_doserror(req, ERRDOS, ERRbadfid);
1660                 return;
1661         }
1662
1663         if(!lp_nt_acl_support(SNUM(conn))) {
1664                 goto done;
1665         }
1666
1667         security_info_sent = IVAL(params,4);
1668
1669         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1670                 (unsigned int)security_info_sent ));
1671
1672         if (data_count == 0) {
1673                 reply_doserror(req, ERRDOS, ERRnoaccess);
1674                 return;
1675         }
1676
1677         status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1678
1679         if (!NT_STATUS_IS_OK(status)) {
1680                 reply_nterror(req, status);
1681                 return;
1682         }
1683
1684   done:
1685         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1686         return;
1687 }
1688
1689 /****************************************************************************
1690  Reply to NT IOCTL
1691 ****************************************************************************/
1692
1693 static void call_nt_transact_ioctl(connection_struct *conn,
1694                                    struct smb_request *req,
1695                                    uint16 **ppsetup, uint32 setup_count,
1696                                    char **ppparams, uint32 parameter_count,
1697                                    char **ppdata, uint32 data_count,
1698                                    uint32 max_data_count)
1699 {
1700         uint32 function;
1701         uint16 fidnum;
1702         files_struct *fsp;
1703         uint8 isFSctl;
1704         uint8 compfilter;
1705         static bool logged_message;
1706         char *pdata = *ppdata;
1707
1708         if (setup_count != 8) {
1709                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1710                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1711                 return;
1712         }
1713
1714         function = IVAL(*ppsetup, 0);
1715         fidnum = SVAL(*ppsetup, 4);
1716         isFSctl = CVAL(*ppsetup, 6);
1717         compfilter = CVAL(*ppsetup, 7);
1718
1719         DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1720                  function, fidnum, isFSctl, compfilter));
1721
1722         fsp=file_fsp(req, fidnum);
1723         /* this check is done in each implemented function case for now
1724            because I don't want to break anything... --metze
1725         FSP_BELONGS_CONN(fsp,conn);*/
1726
1727         switch (function) {
1728         case FSCTL_SET_SPARSE:
1729                 /* pretend this succeeded - tho strictly we should
1730                    mark the file sparse (if the local fs supports it)
1731                    so we can know if we need to pre-allocate or not */
1732
1733                 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1734                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1735                 return;
1736
1737         case FSCTL_CREATE_OR_GET_OBJECT_ID:
1738         {
1739                 unsigned char objid[16];
1740
1741                 /* This should return the object-id on this file.
1742                  * I think I'll make this be the inode+dev. JRA.
1743                  */
1744
1745                 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1746
1747                 if (!fsp_belongs_conn(conn, req, fsp)) {
1748                         return;
1749                 }
1750
1751                 data_count = 64;
1752                 pdata = nttrans_realloc(ppdata, data_count);
1753                 if (pdata == NULL) {
1754                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1755                         return;
1756                 }
1757                 push_file_id_16(pdata, &fsp->file_id);
1758                 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1759                 push_file_id_16(pdata+32, &fsp->file_id);
1760                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1761                                 pdata, data_count);
1762                 return;
1763         }
1764
1765         case FSCTL_GET_REPARSE_POINT:
1766                 /* pretend this fail - my winXP does it like this
1767                  * --metze
1768                  */
1769
1770                 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1771                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1772                 return;
1773
1774         case FSCTL_SET_REPARSE_POINT:
1775                 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1776                  * --metze
1777                  */
1778
1779                 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1780                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1781                 return;
1782
1783         case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1784         {
1785                 /*
1786                  * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1787                  * and return their volume names.  If max_data_count is 16, then it is just
1788                  * asking for the number of volumes and length of the combined names.
1789                  *
1790                  * pdata is the data allocated by our caller, but that uses
1791                  * total_data_count (which is 0 in our case) rather than max_data_count.
1792                  * Allocate the correct amount and return the pointer to let
1793                  * it be deallocated when we return.
1794                  */
1795                 SHADOW_COPY_DATA *shadow_data = NULL;
1796                 TALLOC_CTX *shadow_mem_ctx = NULL;
1797                 bool labels = False;
1798                 uint32 labels_data_count = 0;
1799                 uint32 i;
1800                 char *cur_pdata;
1801
1802                 if (!fsp_belongs_conn(conn, req, fsp)) {
1803                         return;
1804                 }
1805
1806                 if (max_data_count < 16) {
1807                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1808                                 max_data_count));
1809                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1810                         return;
1811                 }
1812
1813                 if (max_data_count > 16) {
1814                         labels = True;
1815                 }
1816
1817                 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1818                 if (shadow_mem_ctx == NULL) {
1819                         DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1820                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1821                         return;
1822                 }
1823
1824                 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1825                 if (shadow_data == NULL) {
1826                         DEBUG(0,("TALLOC_ZERO() failed!\n"));
1827                         talloc_destroy(shadow_mem_ctx);
1828                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1829                         return;
1830                 }
1831
1832                 shadow_data->mem_ctx = shadow_mem_ctx;
1833
1834                 /*
1835                  * Call the VFS routine to actually do the work.
1836                  */
1837                 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1838                         talloc_destroy(shadow_data->mem_ctx);
1839                         if (errno == ENOSYS) {
1840                                 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1841                                         conn->connectpath));
1842                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1843                                 return;
1844                         } else {
1845                                 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1846                                         conn->connectpath));
1847                                 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1848                                 return;
1849                         }
1850                 }
1851
1852                 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1853
1854                 if (!labels) {
1855                         data_count = 16;
1856                 } else {
1857                         data_count = 12+labels_data_count+4;
1858                 }
1859
1860                 if (max_data_count<data_count) {
1861                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1862                                 max_data_count,data_count));
1863                         talloc_destroy(shadow_data->mem_ctx);
1864                         reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1865                         return;
1866                 }
1867
1868                 pdata = nttrans_realloc(ppdata, data_count);
1869                 if (pdata == NULL) {
1870                         talloc_destroy(shadow_data->mem_ctx);
1871                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1872                         return;
1873                 }
1874
1875                 cur_pdata = pdata;
1876
1877                 /* num_volumes 4 bytes */
1878                 SIVAL(pdata,0,shadow_data->num_volumes);
1879
1880                 if (labels) {
1881                         /* num_labels 4 bytes */
1882                         SIVAL(pdata,4,shadow_data->num_volumes);
1883                 }
1884
1885                 /* needed_data_count 4 bytes */
1886                 SIVAL(pdata,8,labels_data_count);
1887
1888                 cur_pdata+=12;
1889
1890                 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1891                         shadow_data->num_volumes,fsp->fsp_name));
1892                 if (labels && shadow_data->labels) {
1893                         for (i=0;i<shadow_data->num_volumes;i++) {
1894                                 srvstr_push(pdata, req->flags2,
1895                                             cur_pdata, shadow_data->labels[i],
1896                                             2*sizeof(SHADOW_COPY_LABEL),
1897                                             STR_UNICODE|STR_TERMINATE);
1898                                 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
1899                                 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
1900                         }
1901                 }
1902
1903                 talloc_destroy(shadow_data->mem_ctx);
1904
1905                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1906                                 pdata, data_count);
1907
1908                 return;
1909         }
1910
1911         case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
1912         {
1913                 /* pretend this succeeded -
1914                  *
1915                  * we have to send back a list with all files owned by this SID
1916                  *
1917                  * but I have to check that --metze
1918                  */
1919                 DOM_SID sid;
1920                 uid_t uid;
1921                 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
1922
1923                 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
1924
1925                 if (!fsp_belongs_conn(conn, req, fsp)) {
1926                         return;
1927                 }
1928
1929                 /* unknown 4 bytes: this is not the length of the sid :-(  */
1930                 /*unknown = IVAL(pdata,0);*/
1931
1932                 sid_parse(pdata+4,sid_len,&sid);
1933                 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
1934
1935                 if (!sid_to_uid(&sid, &uid)) {
1936                         DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
1937                                  sid_string_dbg(&sid),
1938                                  (unsigned long)sid_len));
1939                         uid = (-1);
1940                 }
1941
1942                 /* we can take a look at the find source :-)
1943                  *
1944                  * find ./ -uid $uid  -name '*'   is what we need here
1945                  *
1946                  *
1947                  * and send 4bytes len and then NULL terminated unicode strings
1948                  * for each file
1949                  *
1950                  * but I don't know how to deal with the paged results
1951                  * (maybe we can hang the result anywhere in the fsp struct)
1952                  *
1953                  * we don't send all files at once
1954                  * and at the next we should *not* start from the beginning,
1955                  * so we have to cache the result
1956                  *
1957                  * --metze
1958                  */
1959
1960                 /* this works for now... */
1961                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1962                 return;
1963         }
1964         default:
1965                 if (!logged_message) {
1966                         logged_message = True; /* Only print this once... */
1967                         DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
1968                                  function));
1969                 }
1970         }
1971
1972         reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1973 }
1974
1975
1976 #ifdef HAVE_SYS_QUOTAS
1977 /****************************************************************************
1978  Reply to get user quota
1979 ****************************************************************************/
1980
1981 static void call_nt_transact_get_user_quota(connection_struct *conn,
1982                                             struct smb_request *req,
1983                                             uint16 **ppsetup,
1984                                             uint32 setup_count,
1985                                             char **ppparams,
1986                                             uint32 parameter_count,
1987                                             char **ppdata,
1988                                             uint32 data_count,
1989                                             uint32 max_data_count)
1990 {
1991         NTSTATUS nt_status = NT_STATUS_OK;
1992         char *params = *ppparams;
1993         char *pdata = *ppdata;
1994         char *entry;
1995         int data_len=0,param_len=0;
1996         int qt_len=0;
1997         int entry_len = 0;
1998         files_struct *fsp = NULL;
1999         uint16 level = 0;
2000         size_t sid_len;
2001         DOM_SID sid;
2002         bool start_enum = True;
2003         SMB_NTQUOTA_STRUCT qt;
2004         SMB_NTQUOTA_LIST *tmp_list;
2005         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2006
2007         ZERO_STRUCT(qt);
2008
2009         /* access check */
2010         if (conn->server_info->utok.uid != 0) {
2011                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2012                          "[%s]\n", lp_servicename(SNUM(conn)),
2013                          conn->server_info->unix_name));
2014                 reply_doserror(req, ERRDOS, ERRnoaccess);
2015                 return;
2016         }
2017
2018         /*
2019          * Ensure minimum number of parameters sent.
2020          */
2021
2022         if (parameter_count < 4) {
2023                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2024                 reply_doserror(req, ERRDOS, ERRinvalidparam);
2025                 return;
2026         }
2027
2028         /* maybe we can check the quota_fnum */
2029         fsp = file_fsp(req, SVAL(params,0));
2030         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2031                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2032                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2033                 return;
2034         }
2035
2036         /* the NULL pointer checking for fsp->fake_file_handle->pd
2037          * is done by CHECK_NTQUOTA_HANDLE_OK()
2038          */
2039         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2040
2041         level = SVAL(params,2);
2042
2043         /* unknown 12 bytes leading in params */
2044
2045         switch (level) {
2046                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2047                         /* seems that we should continue with the enum here --metze */
2048
2049                         if (qt_handle->quota_list!=NULL &&
2050                             qt_handle->tmp_list==NULL) {
2051
2052                                 /* free the list */
2053                                 free_ntquota_list(&(qt_handle->quota_list));
2054
2055                                 /* Realloc the size of parameters and data we will return */
2056                                 param_len = 4;
2057                                 params = nttrans_realloc(ppparams, param_len);
2058                                 if(params == NULL) {
2059                                         reply_doserror(req, ERRDOS, ERRnomem);
2060                                         return;
2061                                 }
2062
2063                                 data_len = 0;
2064                                 SIVAL(params,0,data_len);
2065
2066                                 break;
2067                         }
2068
2069                         start_enum = False;
2070
2071                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2072
2073                         if (qt_handle->quota_list==NULL &&
2074                                 qt_handle->tmp_list==NULL) {
2075                                 start_enum = True;
2076                         }
2077
2078                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2079                                 reply_doserror(req, ERRSRV, ERRerror);
2080                                 return;
2081                         }
2082
2083                         /* Realloc the size of parameters and data we will return */
2084                         param_len = 4;
2085                         params = nttrans_realloc(ppparams, param_len);
2086                         if(params == NULL) {
2087                                 reply_doserror(req, ERRDOS, ERRnomem);
2088                                 return;
2089                         }
2090
2091                         /* we should not trust the value in max_data_count*/
2092                         max_data_count = MIN(max_data_count,2048);
2093
2094                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2095                         if(pdata == NULL) {
2096                                 reply_doserror(req, ERRDOS, ERRnomem);
2097                                 return;
2098                         }
2099
2100                         entry = pdata;
2101
2102                         /* set params Size of returned Quota Data 4 bytes*/
2103                         /* but set it later when we know it */
2104
2105                         /* for each entry push the data */
2106
2107                         if (start_enum) {
2108                                 qt_handle->tmp_list = qt_handle->quota_list;
2109                         }
2110
2111                         tmp_list = qt_handle->tmp_list;
2112
2113                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2114                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2115
2116                                 sid_len = ndr_size_dom_sid(
2117                                         &tmp_list->quotas->sid, 0);
2118                                 entry_len = 40 + sid_len;
2119
2120                                 /* nextoffset entry 4 bytes */
2121                                 SIVAL(entry,0,entry_len);
2122
2123                                 /* then the len of the SID 4 bytes */
2124                                 SIVAL(entry,4,sid_len);
2125
2126                                 /* unknown data 8 bytes uint64_t */
2127                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2128
2129                                 /* the used disk space 8 bytes uint64_t */
2130                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2131
2132                                 /* the soft quotas 8 bytes uint64_t */
2133                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2134
2135                                 /* the hard quotas 8 bytes uint64_t */
2136                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2137
2138                                 /* and now the SID */
2139                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2140                         }
2141
2142                         qt_handle->tmp_list = tmp_list;
2143
2144                         /* overwrite the offset of the last entry */
2145                         SIVAL(entry-entry_len,0,0);
2146
2147                         data_len = 4+qt_len;
2148                         /* overwrite the params quota_data_len */
2149                         SIVAL(params,0,data_len);
2150
2151                         break;
2152
2153                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2154
2155                         /* unknown 4 bytes IVAL(pdata,0) */
2156
2157                         if (data_count < 8) {
2158                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2159                                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2160                                 return;
2161                         }
2162
2163                         sid_len = IVAL(pdata,4);
2164                         /* Ensure this is less than 1mb. */
2165                         if (sid_len > (1024*1024)) {
2166                                 reply_doserror(req, ERRDOS, ERRnomem);
2167                                 return;
2168                         }
2169
2170                         if (data_count < 8+sid_len) {
2171                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2172                                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2173                                 return;
2174                         }
2175
2176                         data_len = 4+40+sid_len;
2177
2178                         if (max_data_count < data_len) {
2179                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2180                                         max_data_count, data_len));
2181                                 param_len = 4;
2182                                 SIVAL(params,0,data_len);
2183                                 data_len = 0;
2184                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2185                                 break;
2186                         }
2187
2188                         sid_parse(pdata+8,sid_len,&sid);
2189
2190                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2191                                 ZERO_STRUCT(qt);
2192                                 /*
2193                                  * we have to return zero's in all fields
2194                                  * instead of returning an error here
2195                                  * --metze
2196                                  */
2197                         }
2198
2199                         /* Realloc the size of parameters and data we will return */
2200                         param_len = 4;
2201                         params = nttrans_realloc(ppparams, param_len);
2202                         if(params == NULL) {
2203                                 reply_doserror(req, ERRDOS, ERRnomem);
2204                                 return;
2205                         }
2206
2207                         pdata = nttrans_realloc(ppdata, data_len);
2208                         if(pdata == NULL) {
2209                                 reply_doserror(req, ERRDOS, ERRnomem);
2210                                 return;
2211                         }
2212
2213                         entry = pdata;
2214
2215                         /* set params Size of returned Quota Data 4 bytes*/
2216                         SIVAL(params,0,data_len);
2217
2218                         /* nextoffset entry 4 bytes */
2219                         SIVAL(entry,0,0);
2220
2221                         /* then the len of the SID 4 bytes */
2222                         SIVAL(entry,4,sid_len);
2223
2224                         /* unknown data 8 bytes uint64_t */
2225                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2226
2227                         /* the used disk space 8 bytes uint64_t */
2228                         SBIG_UINT(entry,16,qt.usedspace);
2229
2230                         /* the soft quotas 8 bytes uint64_t */
2231                         SBIG_UINT(entry,24,qt.softlim);
2232
2233                         /* the hard quotas 8 bytes uint64_t */
2234                         SBIG_UINT(entry,32,qt.hardlim);
2235
2236                         /* and now the SID */
2237                         sid_linearize(entry+40, sid_len, &sid);
2238
2239                         break;
2240
2241                 default:
2242                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2243                         reply_doserror(req, ERRSRV, ERRerror);
2244                         return;
2245                         break;
2246         }
2247
2248         send_nt_replies(conn, req, nt_status, params, param_len,
2249                         pdata, data_len);
2250 }
2251
2252 /****************************************************************************
2253  Reply to set user quota
2254 ****************************************************************************/
2255
2256 static void call_nt_transact_set_user_quota(connection_struct *conn,
2257                                             struct smb_request *req,
2258                                             uint16 **ppsetup,
2259                                             uint32 setup_count,
2260                                             char **ppparams,
2261                                             uint32 parameter_count,
2262                                             char **ppdata,
2263                                             uint32 data_count,
2264                                             uint32 max_data_count)
2265 {
2266         char *params = *ppparams;
2267         char *pdata = *ppdata;
2268         int data_len=0,param_len=0;
2269         SMB_NTQUOTA_STRUCT qt;
2270         size_t sid_len;
2271         DOM_SID sid;
2272         files_struct *fsp = NULL;
2273
2274         ZERO_STRUCT(qt);
2275
2276         /* access check */
2277         if (conn->server_info->utok.uid != 0) {
2278                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2279                          "[%s]\n", lp_servicename(SNUM(conn)),
2280                          conn->server_info->unix_name));
2281                 reply_doserror(req, ERRDOS, ERRnoaccess);
2282                 return;
2283         }
2284
2285         /*
2286          * Ensure minimum number of parameters sent.
2287          */
2288
2289         if (parameter_count < 2) {
2290                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2291                 reply_doserror(req, ERRDOS, ERRinvalidparam);
2292                 return;
2293         }
2294
2295         /* maybe we can check the quota_fnum */
2296         fsp = file_fsp(req, SVAL(params,0));
2297         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2298                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2299                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2300                 return;
2301         }
2302
2303         if (data_count < 40) {
2304                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2305                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2306                 return;
2307         }
2308
2309         /* offset to next quota record.
2310          * 4 bytes IVAL(pdata,0)
2311          * unused here...
2312          */
2313
2314         /* sid len */
2315         sid_len = IVAL(pdata,4);
2316
2317         if (data_count < 40+sid_len) {
2318                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2319                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2320                 return;
2321         }
2322
2323         /* unknown 8 bytes in pdata
2324          * maybe its the change time in NTTIME
2325          */
2326
2327         /* the used space 8 bytes (uint64_t)*/
2328         qt.usedspace = (uint64_t)IVAL(pdata,16);
2329 #ifdef LARGE_SMB_OFF_T
2330         qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2331 #else /* LARGE_SMB_OFF_T */
2332         if ((IVAL(pdata,20) != 0)&&
2333                 ((qt.usedspace != 0xFFFFFFFF)||
2334                 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2335                 /* more than 32 bits? */
2336                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2337                 return;
2338         }
2339 #endif /* LARGE_SMB_OFF_T */
2340
2341         /* the soft quotas 8 bytes (uint64_t)*/
2342         qt.softlim = (uint64_t)IVAL(pdata,24);
2343 #ifdef LARGE_SMB_OFF_T
2344         qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2345 #else /* LARGE_SMB_OFF_T */
2346         if ((IVAL(pdata,28) != 0)&&
2347                 ((qt.softlim != 0xFFFFFFFF)||
2348                 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2349                 /* more than 32 bits? */
2350                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2351                 return;
2352         }
2353 #endif /* LARGE_SMB_OFF_T */
2354
2355         /* the hard quotas 8 bytes (uint64_t)*/
2356         qt.hardlim = (uint64_t)IVAL(pdata,32);
2357 #ifdef LARGE_SMB_OFF_T
2358         qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2359 #else /* LARGE_SMB_OFF_T */
2360         if ((IVAL(pdata,36) != 0)&&
2361                 ((qt.hardlim != 0xFFFFFFFF)||
2362                 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2363                 /* more than 32 bits? */
2364                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2365                 return;
2366         }
2367 #endif /* LARGE_SMB_OFF_T */
2368
2369         sid_parse(pdata+40,sid_len,&sid);
2370         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2371
2372         /* 44 unknown bytes left... */
2373
2374         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2375                 reply_doserror(req, ERRSRV, ERRerror);
2376                 return;
2377         }
2378
2379         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2380                         pdata, data_len);
2381 }
2382 #endif /* HAVE_SYS_QUOTAS */
2383
2384 static void handle_nttrans(connection_struct *conn,
2385                            struct trans_state *state,
2386                            struct smb_request *req)
2387 {
2388         if (Protocol >= PROTOCOL_NT1) {
2389                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2390                 SSVAL(req->inbuf,smb_flg2,req->flags2);
2391         }
2392
2393         /* Now we must call the relevant NT_TRANS function */
2394         switch(state->call) {
2395                 case NT_TRANSACT_CREATE:
2396                 {
2397                         START_PROFILE(NT_transact_create);
2398                         call_nt_transact_create(
2399                                 conn, req,
2400                                 &state->setup, state->setup_count,
2401                                 &state->param, state->total_param,
2402                                 &state->data, state->total_data,
2403                                 state->max_data_return);
2404                         END_PROFILE(NT_transact_create);
2405                         break;
2406                 }
2407
2408                 case NT_TRANSACT_IOCTL:
2409                 {
2410                         START_PROFILE(NT_transact_ioctl);
2411                         call_nt_transact_ioctl(
2412                                 conn, req,
2413                                 &state->setup, state->setup_count,
2414                                 &state->param, state->total_param,
2415                                 &state->data, state->total_data,
2416                                 state->max_data_return);
2417                         END_PROFILE(NT_transact_ioctl);
2418                         break;
2419                 }
2420
2421                 case NT_TRANSACT_SET_SECURITY_DESC:
2422                 {
2423                         START_PROFILE(NT_transact_set_security_desc);
2424                         call_nt_transact_set_security_desc(
2425                                 conn, req,
2426                                 &state->setup, state->setup_count,
2427                                 &state->param, state->total_param,
2428                                 &state->data, state->total_data,
2429                                 state->max_data_return);
2430                         END_PROFILE(NT_transact_set_security_desc);
2431                         break;
2432                 }
2433
2434                 case NT_TRANSACT_NOTIFY_CHANGE:
2435                 {
2436                         START_PROFILE(NT_transact_notify_change);
2437                         call_nt_transact_notify_change(
2438                                 conn, req,
2439                                 &state->setup, state->setup_count,
2440                                 &state->param, state->total_param,
2441                                 &state->data, state->total_data,
2442                                 state->max_data_return,
2443                                 state->max_param_return);
2444                         END_PROFILE(NT_transact_notify_change);
2445                         break;
2446                 }
2447
2448                 case NT_TRANSACT_RENAME:
2449                 {
2450                         START_PROFILE(NT_transact_rename);
2451                         call_nt_transact_rename(
2452                                 conn, req,
2453                                 &state->setup, state->setup_count,
2454                                 &state->param, state->total_param,
2455                                 &state->data, state->total_data,
2456                                 state->max_data_return);
2457                         END_PROFILE(NT_transact_rename);
2458                         break;
2459                 }
2460
2461                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2462                 {
2463                         START_PROFILE(NT_transact_query_security_desc);
2464                         call_nt_transact_query_security_desc(
2465                                 conn, req,
2466                                 &state->setup, state->setup_count,
2467                                 &state->param, state->total_param,
2468                                 &state->data, state->total_data,
2469                                 state->max_data_return);
2470                         END_PROFILE(NT_transact_query_security_desc);
2471                         break;
2472                 }
2473
2474 #ifdef HAVE_SYS_QUOTAS
2475                 case NT_TRANSACT_GET_USER_QUOTA:
2476                 {
2477                         START_PROFILE(NT_transact_get_user_quota);
2478                         call_nt_transact_get_user_quota(
2479                                 conn, req,
2480                                 &state->setup, state->setup_count,
2481                                 &state->param, state->total_param,
2482                                 &state->data, state->total_data,
2483                                 state->max_data_return);
2484                         END_PROFILE(NT_transact_get_user_quota);
2485                         break;
2486                 }
2487
2488                 case NT_TRANSACT_SET_USER_QUOTA:
2489                 {
2490                         START_PROFILE(NT_transact_set_user_quota);
2491                         call_nt_transact_set_user_quota(
2492                                 conn, req,
2493                                 &state->setup, state->setup_count,
2494                                 &state->param, state->total_param,
2495                                 &state->data, state->total_data,
2496                                 state->max_data_return);
2497                         END_PROFILE(NT_transact_set_user_quota);
2498                         break;
2499                 }
2500 #endif /* HAVE_SYS_QUOTAS */
2501
2502                 default:
2503                         /* Error in request */
2504                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2505                                  "nttrans call\n", state->call));
2506                         reply_doserror(req, ERRSRV, ERRerror);
2507                         return;
2508         }
2509         return;
2510 }
2511
2512 /****************************************************************************
2513  Reply to a SMBNTtrans.
2514 ****************************************************************************/
2515
2516 void reply_nttrans(struct smb_request *req)
2517 {
2518         connection_struct *conn = req->conn;
2519         uint32_t pscnt;
2520         uint32_t psoff;
2521         uint32_t dscnt;
2522         uint32_t dsoff;
2523         uint16 function_code;
2524         NTSTATUS result;
2525         struct trans_state *state;
2526         uint32_t size;
2527         uint32_t av_size;
2528
2529         START_PROFILE(SMBnttrans);
2530
2531         if (req->wct < 19) {
2532                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2533                 END_PROFILE(SMBnttrans);
2534                 return;
2535         }
2536
2537         size = smb_len(req->inbuf) + 4;
2538         av_size = smb_len(req->inbuf);
2539         pscnt = IVAL(req->inbuf,smb_nt_ParameterCount);
2540         psoff = IVAL(req->inbuf,smb_nt_ParameterOffset);
2541         dscnt = IVAL(req->inbuf,smb_nt_DataCount);
2542         dsoff = IVAL(req->inbuf,smb_nt_DataOffset);
2543         function_code = SVAL(req->inbuf, smb_nt_Function);
2544
2545         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2546                 reply_doserror(req, ERRSRV, ERRaccess);
2547                 END_PROFILE(SMBnttrans);
2548                 return;
2549         }
2550
2551         result = allow_new_trans(conn->pending_trans, req->mid);
2552         if (!NT_STATUS_IS_OK(result)) {
2553                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2554                 reply_nterror(req, result);
2555                 END_PROFILE(SMBnttrans);
2556                 return;
2557         }
2558
2559         if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2560                 reply_doserror(req, ERRSRV, ERRaccess);
2561                 END_PROFILE(SMBnttrans);
2562                 return;
2563         }
2564
2565         state->cmd = SMBnttrans;
2566
2567         state->mid = req->mid;
2568         state->vuid = req->vuid;
2569         state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount);
2570         state->data = NULL;
2571         state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount);
2572         state->param = NULL;
2573         state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount);
2574         state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount);
2575
2576         /* setup count is in *words* */
2577         state->setup_count = 2*CVAL(req->inbuf,smb_nt_SetupCount);
2578         state->setup = NULL;
2579         state->call = function_code;
2580
2581         DEBUG(10, ("num_setup=%u, "
2582                    "param_total=%u, this_param=%u, max_param=%u, "
2583                    "data_total=%u, this_data=%u, max_data=%u, "
2584                    "param_offset=%u, data_offset=%u\n",
2585                    (unsigned)state->setup_count,
2586                    (unsigned)state->total_param, (unsigned)pscnt,
2587                    (unsigned)state->max_param_return,
2588                    (unsigned)state->total_data, (unsigned)dscnt,
2589                    (unsigned)state->max_data_return,
2590                    (unsigned)psoff, (unsigned)dsoff));
2591
2592         /*
2593          * All nttrans messages we handle have smb_wct == 19 +
2594          * state->setup_count.  Ensure this is so as a sanity check.
2595          */
2596
2597         if(req->wct != 19 + (state->setup_count/2)) {
2598                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2599                          req->wct, 19 + (state->setup_count/2)));
2600                 goto bad_param;
2601         }
2602
2603         /* Don't allow more than 128mb for each value. */
2604         if ((state->total_data > (1024*1024*128)) ||
2605             (state->total_param > (1024*1024*128))) {
2606                 reply_doserror(req, ERRDOS, ERRnomem);
2607                 END_PROFILE(SMBnttrans);
2608                 return;
2609         }
2610
2611         if ((dscnt > state->total_data) || (pscnt > state->total_param))
2612                 goto bad_param;
2613
2614         if (state->total_data)  {
2615                 /* Can't use talloc here, the core routines do realloc on the
2616                  * params and data. */
2617                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2618                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
2619                                  "bytes !\n", (unsigned int)state->total_data));
2620                         TALLOC_FREE(state);
2621                         reply_doserror(req, ERRDOS, ERRnomem);
2622                         END_PROFILE(SMBnttrans);
2623                         return;
2624                 }
2625
2626                 if (dscnt > state->total_data ||
2627                                 dsoff+dscnt < dsoff) {
2628                         goto bad_param;
2629                 }
2630
2631                 if (dsoff > av_size ||
2632                                 dscnt > av_size ||
2633                                 dsoff+dscnt > av_size) {
2634                         goto bad_param;
2635                 }
2636
2637                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2638         }
2639
2640         if (state->total_param) {
2641                 /* Can't use talloc here, the core routines do realloc on the
2642                  * params and data. */
2643                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2644                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
2645                                  "bytes !\n", (unsigned int)state->total_param));
2646                         SAFE_FREE(state->data);
2647                         TALLOC_FREE(state);
2648                         reply_doserror(req, ERRDOS, ERRnomem);
2649                         END_PROFILE(SMBnttrans);
2650                         return;
2651                 }
2652
2653                 if (pscnt > state->total_param ||
2654                                 psoff+pscnt < psoff) {
2655                         goto bad_param;
2656                 }
2657
2658                 if (psoff > av_size ||
2659                                 pscnt > av_size ||
2660                                 psoff+pscnt > av_size) {
2661                         goto bad_param;
2662                 }
2663
2664                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2665         }
2666
2667         state->received_data  = dscnt;
2668         state->received_param = pscnt;
2669
2670         if(state->setup_count > 0) {
2671                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2672                           state->setup_count));
2673                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2674                 if (state->setup == NULL) {
2675                         DEBUG(0,("reply_nttrans : Out of memory\n"));
2676                         SAFE_FREE(state->data);
2677                         SAFE_FREE(state->param);
2678                         TALLOC_FREE(state);
2679                         reply_doserror(req, ERRDOS, ERRnomem);
2680                         END_PROFILE(SMBnttrans);
2681                         return;
2682                 }
2683
2684                 if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) ||
2685                     (smb_nt_SetupStart + state->setup_count < state->setup_count)) {
2686                         goto bad_param;
2687                 }
2688                 if (smb_nt_SetupStart + state->setup_count > size) {
2689                         goto bad_param;
2690                 }
2691
2692                 memcpy( state->setup, &req->inbuf[smb_nt_SetupStart],
2693                         state->setup_count);
2694                 dump_data(10, (uint8 *)state->setup, state->setup_count);
2695         }
2696
2697         if ((state->received_data == state->total_data) &&
2698             (state->received_param == state->total_param)) {
2699                 handle_nttrans(conn, state, req);
2700                 SAFE_FREE(state->param);
2701                 SAFE_FREE(state->data);
2702                 TALLOC_FREE(state);
2703                 END_PROFILE(SMBnttrans);
2704                 return;
2705         }
2706
2707         DLIST_ADD(conn->pending_trans, state);
2708
2709         /* We need to send an interim response then receive the rest
2710            of the parameter/data bytes */
2711         reply_outbuf(req, 0, 0);
2712         show_msg((char *)req->outbuf);
2713         END_PROFILE(SMBnttrans);
2714         return;
2715
2716   bad_param:
2717
2718         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2719         SAFE_FREE(state->data);
2720         SAFE_FREE(state->param);
2721         TALLOC_FREE(state);
2722         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2723         END_PROFILE(SMBnttrans);
2724         return;
2725 }
2726
2727 /****************************************************************************
2728  Reply to a SMBnttranss
2729  ****************************************************************************/
2730
2731 void reply_nttranss(struct smb_request *req)
2732 {
2733         connection_struct *conn = req->conn;
2734         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2735         struct trans_state *state;
2736         uint32_t av_size;
2737         uint32_t size;
2738
2739         START_PROFILE(SMBnttranss);
2740
2741         show_msg((char *)req->inbuf);
2742
2743         if (req->wct < 18) {
2744                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2745                 END_PROFILE(SMBnttranss);
2746                 return;
2747         }
2748
2749         for (state = conn->pending_trans; state != NULL;
2750              state = state->next) {
2751                 if (state->mid == req->mid) {
2752                         break;
2753                 }
2754         }
2755
2756         if ((state == NULL) || (state->cmd != SMBnttrans)) {
2757                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2758                 END_PROFILE(SMBnttranss);
2759                 return;
2760         }
2761
2762         /* Revise state->total_param and state->total_data in case they have
2763            changed downwards */
2764         if (IVAL(req->inbuf, smb_nts_TotalParameterCount)
2765             < state->total_param) {
2766                 state->total_param = IVAL(req->inbuf,
2767                                           smb_nts_TotalParameterCount);
2768         }
2769         if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) {
2770                 state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount);
2771         }
2772
2773         size = smb_len(req->inbuf) + 4;
2774         av_size = smb_len(req->inbuf);
2775
2776         pcnt = IVAL(req->inbuf,smb_nts_ParameterCount);
2777         poff = IVAL(req->inbuf, smb_nts_ParameterOffset);
2778         pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement);
2779
2780         dcnt = IVAL(req->inbuf, smb_nts_DataCount);
2781         ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement);
2782         doff = IVAL(req->inbuf, smb_nts_DataOffset);
2783
2784         state->received_param += pcnt;
2785         state->received_data += dcnt;
2786
2787         if ((state->received_data > state->total_data) ||
2788             (state->received_param > state->total_param))
2789                 goto bad_param;
2790
2791         if (pcnt) {
2792                 if (pdisp > state->total_param ||
2793                                 pcnt > state->total_param ||
2794                                 pdisp+pcnt > state->total_param ||
2795                                 pdisp+pcnt < pdisp) {
2796                         goto bad_param;
2797                 }
2798
2799                 if (poff > av_size ||
2800                                 pcnt > av_size ||
2801                                 poff+pcnt > av_size ||
2802                                 poff+pcnt < poff) {
2803                         goto bad_param;
2804                 }
2805
2806                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,
2807                        pcnt);
2808         }
2809
2810         if (dcnt) {
2811                 if (ddisp > state->total_data ||
2812                                 dcnt > state->total_data ||
2813                                 ddisp+dcnt > state->total_data ||
2814                                 ddisp+dcnt < ddisp) {
2815                         goto bad_param;
2816                 }
2817
2818                 if (ddisp > av_size ||
2819                                 dcnt > av_size ||
2820                                 ddisp+dcnt > av_size ||
2821                                 ddisp+dcnt < ddisp) {
2822                         goto bad_param;
2823                 }
2824
2825                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
2826                        dcnt);
2827         }
2828
2829         if ((state->received_param < state->total_param) ||
2830             (state->received_data < state->total_data)) {
2831                 END_PROFILE(SMBnttranss);
2832                 return;
2833         }
2834
2835         /*
2836          * construct_reply_common will copy smb_com from inbuf to
2837          * outbuf. SMBnttranss is wrong here.
2838          */
2839         SCVAL(req->inbuf,smb_com,SMBnttrans);
2840
2841         handle_nttrans(conn, state, req);
2842
2843         DLIST_REMOVE(conn->pending_trans, state);
2844         SAFE_FREE(state->data);
2845         SAFE_FREE(state->param);
2846         TALLOC_FREE(state);
2847         END_PROFILE(SMBnttranss);
2848         return;
2849
2850   bad_param:
2851
2852         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2853         DLIST_REMOVE(conn->pending_trans, state);
2854         SAFE_FREE(state->data);
2855         SAFE_FREE(state->param);
2856         TALLOC_FREE(state);
2857         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2858         END_PROFILE(SMBnttranss);
2859         return;
2860 }