source/smbd/nttrans.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB NT transaction handling
   4    Copyright (C) Jeremy Allison 1994-1998
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22
  23 extern int Protocol;
  24 extern int smb_read_error;
  25 extern int global_oplock_break;
  26 extern BOOL case_sensitive;
  27 extern BOOL case_preserve;
  28 extern BOOL short_case_preserve;
  29
  30 static const char *known_nt_pipes[] = {
  31         "\\LANMAN",
  32         "\\srvsvc",
  33         "\\samr",
  34         "\\wkssvc",
  35         "\\NETLOGON",
  36         "\\ntlsa",
  37         "\\ntsvcs",
  38         "\\lsass",
  39         "\\lsarpc",
  40         "\\winreg",
  41         "\\spoolss",
  42         "\\netdfs",
  43         NULL
  44 };
  45
  46 /* Map generic permissions to file object specific permissions */
  47
  48 struct generic_mapping file_generic_mapping = {
  49         FILE_GENERIC_READ,
  50         FILE_GENERIC_WRITE,
  51         FILE_GENERIC_EXECUTE,
  52         FILE_GENERIC_ALL
  53 };
  54
  55 /****************************************************************************
  56  Send the required number of replies back.
  57  We assume all fields other than the data fields are
  58  set correctly for the type of call.
  59  HACK ! Always assumes smb_setup field is zero.
  60 ****************************************************************************/
  61
  62 static int send_nt_replies(char *inbuf, char *outbuf, int bufsize, NTSTATUS nt_error, char *params,
  63                            int paramsize, char *pdata, int datasize)
  64 {
  65         extern int max_send;
  66         int data_to_send = datasize;
  67         int params_to_send = paramsize;
  68         int useable_space;
  69         char *pp = params;
  70         char *pd = pdata;
  71         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  72         int alignment_offset = 3;
  73         int data_alignment_offset = 0;
  74
  75         /*
  76          * Initially set the wcnt area to be 18 - this is true for all
  77          * transNT replies.
  78          */
  79
  80         set_message(outbuf,18,0,True);
  81
  82         if (NT_STATUS_V(nt_error))
  83                 ERROR_NT(nt_error);
  84
  85         /*
  86          * If there genuinely are no parameters or data to send just send
  87          * the empty packet.
  88          */
  89
  90         if(params_to_send == 0 && data_to_send == 0) {
  91                 if (!send_smb(smbd_server_fd(),outbuf))
  92                         exit_server("send_nt_replies: send_smb failed.");
  93                 return 0;
  94         }
  95
  96         /*
  97          * When sending params and data ensure that both are nicely aligned.
  98          * Only do this alignment when there is also data to send - else
  99          * can cause NT redirector problems.
 100          */
 101
 102         if (((params_to_send % 4) != 0) && (data_to_send != 0))
 103                 data_alignment_offset = 4 - (params_to_send % 4);
 104
 105         /*
 106          * Space is bufsize minus Netbios over TCP header minus SMB header.
 107          * The alignment_offset is to align the param bytes on a four byte
 108          * boundary (2 bytes for data len, one byte pad).
 109          * NT needs this to work correctly.
 110          */
 111
 112         useable_space = bufsize - ((smb_buf(outbuf)+
 113                                 alignment_offset+data_alignment_offset) -
 114                                 outbuf);
 115
 116         /*
 117          * useable_space can never be more than max_send minus the
 118          * alignment offset.
 119          */
 120
 121         useable_space = MIN(useable_space,
 122                                 max_send - (alignment_offset+data_alignment_offset));
 123
 124
 125         while (params_to_send || data_to_send) {
 126
 127                 /*
 128                  * Calculate whether we will totally or partially fill this packet.
 129                  */
 130
 131                 total_sent_thistime = params_to_send + data_to_send +
 132                                         alignment_offset + data_alignment_offset;
 133
 134                 /*
 135                  * We can never send more than useable_space.
 136                  */
 137
 138                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 139
 140                 set_message(outbuf, 18, total_sent_thistime, True);
 141
 142                 /*
 143                  * Set total params and data to be sent.
 144                  */
 145
 146                 SIVAL(outbuf,smb_ntr_TotalParameterCount,paramsize);
 147                 SIVAL(outbuf,smb_ntr_TotalDataCount,datasize);
 148
 149                 /*
 150                  * Calculate how many parameters and data we can fit into
 151                  * this packet. Parameters get precedence.
 152                  */
 153
 154                 params_sent_thistime = MIN(params_to_send,useable_space);
 155                 data_sent_thistime = useable_space - params_sent_thistime;
 156                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 157
 158                 SIVAL(outbuf,smb_ntr_ParameterCount,params_sent_thistime);
 159
 160                 if(params_sent_thistime == 0) {
 161                         SIVAL(outbuf,smb_ntr_ParameterOffset,0);
 162                         SIVAL(outbuf,smb_ntr_ParameterDisplacement,0);
 163                 } else {
 164                         /*
 165                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 166                          * parameter bytes, however the first 4 bytes of outbuf are
 167                          * the Netbios over TCP header. Thus use smb_base() to subtract
 168                          * them from the calculation.
 169                          */
 170
 171                         SIVAL(outbuf,smb_ntr_ParameterOffset,
 172                                 ((smb_buf(outbuf)+alignment_offset) - smb_base(outbuf)));
 173                         /*
 174                          * Absolute displacement of param bytes sent in this packet.
 175                          */
 176
 177                         SIVAL(outbuf,smb_ntr_ParameterDisplacement,pp - params);
 178                 }
 179
 180                 /*
 181                  * Deal with the data portion.
 182                  */
 183
 184                 SIVAL(outbuf,smb_ntr_DataCount, data_sent_thistime);
 185
 186                 if(data_sent_thistime == 0) {
 187                         SIVAL(outbuf,smb_ntr_DataOffset,0);
 188                         SIVAL(outbuf,smb_ntr_DataDisplacement, 0);
 189                 } else {
 190                         /*
 191                          * The offset of the data bytes is the offset of the
 192                          * parameter bytes plus the number of parameters being sent this time.
 193                          */
 194
 195                         SIVAL(outbuf,smb_ntr_DataOffset,((smb_buf(outbuf)+alignment_offset) -
 196                                 smb_base(outbuf)) + params_sent_thistime + data_alignment_offset);
 197                                 SIVAL(outbuf,smb_ntr_DataDisplacement, pd - pdata);
 198                 }
 199
 200                 /*
 201                  * Copy the param bytes into the packet.
 202                  */
 203
 204                 if(params_sent_thistime)
 205                         memcpy((smb_buf(outbuf)+alignment_offset),pp,params_sent_thistime);
 206
 207                 /*
 208                  * Copy in the data bytes
 209                  */
 210
 211                 if(data_sent_thistime)
 212                         memcpy(smb_buf(outbuf)+alignment_offset+params_sent_thistime+
 213                                 data_alignment_offset,pd,data_sent_thistime);
 214
 215                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 216                         params_sent_thistime, data_sent_thistime, useable_space));
 217                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 218                         params_to_send, data_to_send, paramsize, datasize));
 219
 220                 /* Send the packet */
 221                 if (!send_smb(smbd_server_fd(),outbuf))
 222                         exit_server("send_nt_replies: send_smb failed.");
 223
 224                 pp += params_sent_thistime;
 225                 pd += data_sent_thistime;
 226
 227                 params_to_send -= params_sent_thistime;
 228                 data_to_send -= data_sent_thistime;
 229
 230                 /*
 231                  * Sanity check
 232                  */
 233
 234                 if(params_to_send < 0 || data_to_send < 0) {
 235                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 236                                 params_to_send, data_to_send));
 237                         return -1;
 238                 }
 239         }
 240
 241         return 0;
 242 }
 243
 244 /****************************************************************************
 245  Save case statics.
 246 ****************************************************************************/
 247
 248 static BOOL saved_case_sensitive;
 249 static BOOL saved_case_preserve;
 250 static BOOL saved_short_case_preserve;
 251
 252 /****************************************************************************
 253  Save case semantics.
 254 ****************************************************************************/
 255
 256 static void set_posix_case_semantics(uint32 file_attributes)
 257 {
 258         if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS))
 259                 return;
 260
 261         saved_case_sensitive = case_sensitive;
 262         saved_case_preserve = case_preserve;
 263         saved_short_case_preserve = short_case_preserve;
 264
 265         /* Set to POSIX. */
 266         case_sensitive = True;
 267         case_preserve = True;
 268         short_case_preserve = True;
 269 }
 270
 271 /****************************************************************************
 272  Restore case semantics.
 273 ****************************************************************************/
 274
 275 static void restore_case_semantics(uint32 file_attributes)
 276 {
 277         if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS))
 278                 return;
 279
 280         case_sensitive = saved_case_sensitive;
 281         case_preserve = saved_case_preserve;
 282         short_case_preserve = saved_short_case_preserve;
 283 }
 284
 285 /****************************************************************************
 286  Utility function to map create disposition.
 287 ****************************************************************************/
 288
 289 static int map_create_disposition( uint32 create_disposition)
 290 {
 291         int ret;
 292
 293         switch( create_disposition ) {
 294                 case FILE_CREATE:
 295                         /* create if not exist, fail if exist */
 296                         ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_FAIL);
 297                         break;
 298                 case FILE_SUPERSEDE:
 299                 case FILE_OVERWRITE_IF:
 300                         /* create if not exist, trunc if exist */
 301                         ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
 302                         break;
 303                 case FILE_OPEN:
 304                         /* fail if not exist, open if exists */
 305                         ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN);
 306                         break;
 307                 case FILE_OPEN_IF:
 308                         /* create if not exist, open if exists */
 309                         ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_OPEN);
 310                         break;
 311                 case FILE_OVERWRITE:
 312                         /* fail if not exist, truncate if exists */
 313                         ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
 314                         break;
 315                 default:
 316                         DEBUG(0,("map_create_disposition: Incorrect value for create_disposition = %d\n",
 317                                 create_disposition ));
 318                         return -1;
 319         }
 320
 321         DEBUG(10,("map_create_disposition: Mapped create_disposition 0x%lx to 0x%x\n",
 322                         (unsigned long)create_disposition, ret ));
 323
 324         return ret;
 325 }
 326
 327 /****************************************************************************
 328  Utility function to map share modes.
 329 ****************************************************************************/
 330
 331 static int map_share_mode( char *fname, uint32 create_options,
 332                         uint32 *desired_access, uint32 share_access, uint32 file_attributes)
 333 {
 334         int smb_open_mode = -1;
 335
 336         /*
 337          * Convert GENERIC bits to specific bits.
 338          */
 339
 340         se_map_generic(desired_access, &file_generic_mapping);
 341
 342         switch( *desired_access & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA) ) {
 343                 case FILE_READ_DATA:
 344                         smb_open_mode = DOS_OPEN_RDONLY;
 345                         break;
 346                 case FILE_WRITE_DATA:
 347                 case FILE_APPEND_DATA:
 348                 case FILE_WRITE_DATA|FILE_APPEND_DATA:
 349                         smb_open_mode = DOS_OPEN_WRONLY;
 350                         break;
 351                 case FILE_READ_DATA|FILE_WRITE_DATA:
 352                 case FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA:
 353                 case FILE_READ_DATA|FILE_APPEND_DATA:
 354                         smb_open_mode = DOS_OPEN_RDWR;
 355                         break;
 356         }
 357
 358         /*
 359          * NB. For DELETE_ACCESS we should really check the
 360          * directory permissions, as that is what controls
 361          * delete, and for WRITE_DAC_ACCESS we should really
 362          * check the ownership, as that is what controls the
 363          * chmod. Note that this is *NOT* a security hole (this
 364          * note is for you, Andrew) as we are not *allowing*
 365          * the access at this point, the actual unlink or
 366          * chown or chmod call would do this. We are just helping
 367          * clients out by telling them if they have a hope
 368          * of any of this succeeding. POSIX acls may still
 369          * deny the real call. JRA.
 370          */
 371
 372         if (smb_open_mode == -1) {
 373
 374                 if(*desired_access & (DELETE_ACCESS|WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS|SYNCHRONIZE_ACCESS|
 375                                         FILE_EXECUTE|FILE_READ_ATTRIBUTES|
 376                                         FILE_READ_EA|FILE_WRITE_EA|SYSTEM_SECURITY_ACCESS|
 377                                         FILE_WRITE_ATTRIBUTES|READ_CONTROL_ACCESS)) {
 378                         smb_open_mode = DOS_OPEN_RDONLY;
 379                 } else if(*desired_access == 0) {
 380
 381                         /*
 382                          * JRA - NT seems to sometimes send desired_access as zero. play it safe
 383                          * and map to a stat open.
 384                          */
 385
 386                         smb_open_mode = DOS_OPEN_RDONLY;
 387
 388                 } else {
 389                         DEBUG(0,("map_share_mode: Incorrect value 0x%lx for desired_access to file %s\n",
 390                                 (unsigned long)*desired_access, fname));
 391                         return -1;
 392                 }
 393         }
 394
 395         /*
 396          * Set the special bit that means allow share delete.
 397          * This is held outside the normal share mode bits at 1<<15.
 398          * JRA.
 399          */
 400
 401         if(share_access & FILE_SHARE_DELETE) {
 402                 smb_open_mode |= ALLOW_SHARE_DELETE;
 403                 DEBUG(10,("map_share_mode: FILE_SHARE_DELETE requested. open_mode = 0x%x\n", smb_open_mode));
 404         }
 405
 406         /*
 407          * We need to store the intent to open for Delete. This
 408          * is what determines if a delete on close flag can be set.
 409          * This is the wrong way (and place) to store this, but for 2.2 this
 410          * is the only practical way. JRA.
 411          */
 412
 413         if(*desired_access & DELETE_ACCESS) {
 414                 DEBUG(10,("map_share_mode: DELETE_ACCESS requested. open_mode = 0x%x\n", smb_open_mode));
 415         }
 416
 417         if (create_options & FILE_DELETE_ON_CLOSE) {
 418                 /* Implicit delete access is *NOT* requested... */
 419                 smb_open_mode |= DELETE_ON_CLOSE_FLAG;
 420                 DEBUG(10,("map_share_mode: FILE_DELETE_ON_CLOSE requested. open_mode = 0x%x\n", smb_open_mode));
 421         }
 422
 423         /* Add in the requested share mode. */
 424         switch( share_access & (FILE_SHARE_READ|FILE_SHARE_WRITE)) {
 425                 case FILE_SHARE_READ:
 426                         smb_open_mode |= SET_DENY_MODE(DENY_WRITE);
 427                         break;
 428                 case FILE_SHARE_WRITE:
 429                         smb_open_mode |= SET_DENY_MODE(DENY_READ);
 430                         break;
 431                 case (FILE_SHARE_READ|FILE_SHARE_WRITE):
 432                         smb_open_mode |= SET_DENY_MODE(DENY_NONE);
 433                         break;
 434                 case FILE_SHARE_NONE:
 435                         smb_open_mode |= SET_DENY_MODE(DENY_ALL);
 436                         break;
 437         }
 438
 439         /*
 440          * Handle an O_SYNC request.
 441          */
 442
 443         if(file_attributes & FILE_FLAG_WRITE_THROUGH)
 444                 smb_open_mode |= FILE_SYNC_OPENMODE;
 445
 446         DEBUG(10,("map_share_mode: Mapped desired access 0x%lx, share access 0x%lx, file attributes 0x%lx \
 447 to open_mode 0x%x\n", (unsigned long)*desired_access, (unsigned long)share_access,
 448                 (unsigned long)file_attributes, smb_open_mode ));
 449
 450         return smb_open_mode;
 451 }
 452
 453 /****************************************************************************
 454  Reply to an NT create and X call on a pipe.
 455 ****************************************************************************/
 456
 457 static int nt_open_pipe(char *fname, connection_struct *conn,
 458                         char *inbuf, char *outbuf, int *ppnum)
 459 {
 460         smb_np_struct *p = NULL;
 461
 462         uint16 vuid = SVAL(inbuf, smb_uid);
 463         int i;
 464
 465         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 466
 467         /* See if it is one we want to handle. */
 468
 469         if (lp_disable_spoolss() && strequal(fname, "\\spoolss"))
 470                 return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe));
 471
 472         for( i = 0; known_nt_pipes[i]; i++ )
 473                 if( strequal(fname,known_nt_pipes[i]))
 474                         break;
 475
 476         if ( known_nt_pipes[i] == NULL )
 477                 return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe));
 478
 479         /* Strip \\ off the name. */
 480         fname++;
 481
 482         DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
 483
 484         p = open_rpc_pipe_p(fname, conn, vuid);
 485         if (!p)
 486                 return(ERROR_DOS(ERRSRV,ERRnofids));
 487
 488         *ppnum = p->pnum;
 489
 490         return 0;
 491 }
 492
 493 /****************************************************************************
 494  Reply to an NT create and X call for pipes.
 495 ****************************************************************************/
 496
 497 static int do_ntcreate_pipe_open(connection_struct *conn,
 498                          char *inbuf,char *outbuf,int length,int bufsize)
 499 {
 500         pstring fname;
 501         int ret;
 502         int pnum = -1;
 503         char *p = NULL;
 504
 505         srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
 506
 507         if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0)
 508                 return ret;
 509
 510         /*
 511          * Deal with pipe return.
 512          */
 513
 514         set_message(outbuf,34,0,True);
 515
 516         p = outbuf + smb_vwv2;
 517         p++;
 518         SSVAL(p,0,pnum);
 519         p += 2;
 520         SIVAL(p,0,FILE_WAS_OPENED);
 521         p += 4;
 522         p += 32;
 523         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 524         p += 20;
 525         /* File type. */
 526         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 527         /* Device state. */
 528         SSVAL(p,2, 0x5FF); /* ? */
 529
 530         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 531
 532         return chain_reply(inbuf,outbuf,length,bufsize);
 533 }
 534
 535 /****************************************************************************
 536  Reply to an NT create and X call.
 537 ****************************************************************************/
 538
 539 int reply_ntcreate_and_X(connection_struct *conn,
 540                          char *inbuf,char *outbuf,int length,int bufsize)
 541 {
 542         int result;
 543         pstring fname;
 544         uint32 flags = IVAL(inbuf,smb_ntcreate_Flags);
 545         uint32 desired_access = IVAL(inbuf,smb_ntcreate_DesiredAccess);
 546         uint32 file_attributes = IVAL(inbuf,smb_ntcreate_FileAttributes);
 547         uint32 share_access = IVAL(inbuf,smb_ntcreate_ShareAccess);
 548         uint32 create_disposition = IVAL(inbuf,smb_ntcreate_CreateDisposition);
 549         uint32 create_options = IVAL(inbuf,smb_ntcreate_CreateOptions);
 550         uint16 root_dir_fid = (uint16)IVAL(inbuf,smb_ntcreate_RootDirectoryFid);
 551         SMB_BIG_UINT allocation_size = 0;
 552         int smb_ofun;
 553         int smb_open_mode;
 554         int smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
 555         /* Breakout the oplock request bits so we can set the
 556            reply bits separately. */
 557         int oplock_request = 0;
 558         mode_t unixmode;
 559         int fmode=0,rmode=0;
 560         SMB_OFF_T file_len = 0;
 561         SMB_STRUCT_STAT sbuf;
 562         int smb_action = 0;
 563         BOOL bad_path = False;
 564         files_struct *fsp=NULL;
 565         char *p = NULL;
 566         time_t c_time;
 567         BOOL extended_oplock_granted = False;
 568
 569         START_PROFILE(SMBntcreateX);
 570
 571         DEBUG(10,("reply_ntcreateX: flags = 0x%x, desired_access = 0x%x \
 572 file_attributes = 0x%x, share_access = 0x%x, create_disposition = 0x%x \
 573 create_options = 0x%x root_dir_fid = 0x%x\n", flags, desired_access, file_attributes,
 574                         share_access, create_disposition,
 575                         create_options, root_dir_fid ));
 576
 577         /* If it's an IPC, use the pipe handler. */
 578
 579         if (IS_IPC(conn)) {
 580                 if (lp_nt_pipe_support()) {
 581                         END_PROFILE(SMBntcreateX);
 582                         return do_ntcreate_pipe_open(conn,inbuf,outbuf,length,bufsize);
 583                 } else {
 584                         END_PROFILE(SMBntcreateX);
 585                         return(ERROR_DOS(ERRDOS,ERRnoaccess));
 586                 }
 587         }
 588
 589         if (create_options & FILE_OPEN_BY_FILE_ID) {
 590                 END_PROFILE(SMBntcreateX);
 591                 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
 592         }
 593
 594         /*
 595          * We need to construct the open_and_X ofun value from the
 596          * NT values, as that's what our code is structured to accept.
 597          */
 598
 599         if((smb_ofun = map_create_disposition( create_disposition )) == -1) {
 600                 END_PROFILE(SMBntcreateX);
 601                 return(ERROR_DOS(ERRDOS,ERRnoaccess));
 602         }
 603
 604         /*
 605          * Get the file name.
 606          */
 607
 608         if(root_dir_fid != 0) {
 609                 /*
 610                  * This filename is relative to a directory fid.
 611                  */
 612                 files_struct *dir_fsp = file_fsp(inbuf,smb_ntcreate_RootDirectoryFid);
 613                 size_t dir_name_len;
 614
 615                 if(!dir_fsp) {
 616                         END_PROFILE(SMBntcreateX);
 617                         return(ERROR_DOS(ERRDOS,ERRbadfid));
 618                 }
 619
 620                 if(!dir_fsp->is_directory) {
 621
 622                         srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
 623
 624                         /*
 625                          * Check to see if this is a mac fork of some kind.
 626                          */
 627
 628                         if( strchr_m(fname, ':')) {
 629                                 END_PROFILE(SMBntcreateX);
 630                                 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
 631                         }
 632
 633
 634                         /*
 635                           we need to handle the case when we get a
 636                           relative open relative to a file and the
 637                           pathname is blank - this is a reopen!
 638                           (hint from demyn plantenberg)
 639                         */
 640
 641
 642                         END_PROFILE(SMBntcreateX);
 643                         return(ERROR_DOS(ERRDOS,ERRbadfid));
 644                 }
 645
 646                 /*
 647                  * Copy in the base directory name.
 648                  */
 649
 650                 pstrcpy( fname, dir_fsp->fsp_name );
 651                 dir_name_len = strlen(fname);
 652
 653                 /*
 654                  * Ensure it ends in a '\'.
 655                  */
 656
 657                 if(fname[dir_name_len-1] != '\\' && fname[dir_name_len-1] != '/') {
 658                         pstrcat(fname, "\\");
 659                         dir_name_len++;
 660                 }
 661
 662                 srvstr_pull_buf(inbuf, &fname[dir_name_len], smb_buf(inbuf), sizeof(fname)-dir_name_len, STR_TERMINATE);
 663         } else {
 664                 srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
 665
 666                 /*
 667                  * Check to see if this is a mac fork of some kind.
 668                  */
 669
 670                 if( strchr_m(fname, ':')) {
 671                         END_PROFILE(SMBntcreateX);
 672                         return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
 673                 }
 674         }
 675
 676         /*
 677          * Now contruct the smb_open_mode value from the filename,
 678          * desired access and the share access.
 679          */
 680         RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
 681
 682         if((smb_open_mode = map_share_mode(fname, create_options, &desired_access,
 683                                            share_access,
 684                                            file_attributes)) == -1) {
 685                 END_PROFILE(SMBntcreateX);
 686                 return ERROR_DOS(ERRDOS,ERRnoaccess);
 687         }
 688
 689         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 690         if (oplock_request) {
 691                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
 692         }
 693
 694         /*
 695          * Ordinary file or directory.
 696          */
 697
 698         /*
 699          * Check if POSIX semantics are wanted.
 700          */
 701
 702         set_posix_case_semantics(file_attributes);
 703
 704         unix_convert(fname,conn,0,&bad_path,&sbuf);
 705
 706         unixmode = unix_mode(conn,smb_attr | aARCH, fname);
 707
 708         /*
 709          * If it's a request for a directory open, deal with it separately.
 710          */
 711
 712         if(create_options & FILE_DIRECTORY_FILE) {
 713                 oplock_request = 0;
 714
 715                 /* Can't open a temp directory. IFS kit test. */
 716                 if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
 717                         END_PROFILE(SMBntcreateX);
 718                         return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
 719                 }
 720
 721                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
 722
 723                 restore_case_semantics(file_attributes);
 724
 725                 if(!fsp) {
 726                         set_bad_path_error(errno, bad_path);
 727                         END_PROFILE(SMBntcreateX);
 728                         return(UNIXERROR(ERRDOS,ERRnoaccess));
 729                 }
 730         } else {
 731                 /*
 732                  * Ordinary file case.
 733                  */
 734
 735                 /* NB. We have a potential bug here. If we
 736                  * cause an oplock break to ourselves, then we
 737                  * could end up processing filename related
 738                  * SMB requests whilst we await the oplock
 739                  * break response. As we may have changed the
 740                  * filename case semantics to be POSIX-like,
 741                  * this could mean a filename request could
 742                  * fail when it should succeed. This is a rare
 743                  * condition, but eventually we must arrange
 744                  * to restore the correct case semantics
 745                  * before issuing an oplock break request to
 746                  * our client. JRA.  */
 747
 748                 fsp = open_file_shared1(conn,fname,&sbuf,
 749                                         desired_access,
 750                                         smb_open_mode,
 751                                         smb_ofun,unixmode, oplock_request,
 752                                         &rmode,&smb_action);
 753
 754                 if (!fsp) {
 755                         /* We cheat here. There are two cases we
 756                          * care about. One is a directory rename,
 757                          * where the NT client will attempt to
 758                          * open the source directory for
 759                          * DELETE access. Note that when the
 760                          * NT client does this it does *not*
 761                          * set the directory bit in the
 762                          * request packet. This is translated
 763                          * into a read/write open
 764                          * request. POSIX states that any open
 765                          * for write request on a directory
 766                          * will generate an EISDIR error, so
 767                          * we can catch this here and open a
 768                          * pseudo handle that is flagged as a
 769                          * directory. The second is an open
 770                          * for a permissions read only, which
 771                          * we handle in the open_file_stat case. JRA.
 772                          */
 773
 774                         if(errno == EISDIR) {
 775
 776                                 /*
 777                                  * Fail the open if it was explicitly a non-directory file.
 778                                  */
 779
 780                                 if (create_options & FILE_NON_DIRECTORY_FILE) {
 781                                         restore_case_semantics(file_attributes);
 782                                         SSVAL(outbuf, smb_flg2,
 783                                               SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
 784                                         END_PROFILE(SMBntcreateX);
 785                                         return ERROR_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
 786                                 }
 787
 788                                 oplock_request = 0;
 789                                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
 790
 791                                 if(!fsp) {
 792                                         restore_case_semantics(file_attributes);
 793                                         set_bad_path_error(errno, bad_path);
 794                                         END_PROFILE(SMBntcreateX);
 795                                         return(UNIXERROR(ERRDOS,ERRnoaccess));
 796                                 }
 797                         } else {
 798
 799                                 restore_case_semantics(file_attributes);
 800                                 set_bad_path_error(errno, bad_path);
 801                                 END_PROFILE(SMBntcreateX);
 802                                 return(UNIXERROR(ERRDOS,ERRnoaccess));
 803                         }
 804                 }
 805         }
 806
 807         restore_case_semantics(file_attributes);
 808
 809         file_len = sbuf.st_size;
 810         fmode = dos_mode(conn,fname,&sbuf);
 811         if(fmode == 0)
 812                 fmode = FILE_ATTRIBUTE_NORMAL;
 813         if (!fsp->is_directory && (fmode & aDIR)) {
 814                 close_file(fsp,False);
 815                 END_PROFILE(SMBntcreateX);
 816                 return ERROR_DOS(ERRDOS,ERRnoaccess);
 817         }
 818
 819         /* Save the requested allocation size. */
 820         allocation_size = (SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize);
 821 #ifdef LARGE_SMB_OFF_T
 822         allocation_size |= (((SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize + 4)) << 32);
 823 #endif
 824         if (allocation_size && (allocation_size > (SMB_BIG_UINT)file_len)) {
 825                 fsp->initial_allocation_size = SMB_ROUNDUP(allocation_size,SMB_ROUNDUP_ALLOCATION_SIZE);
 826                 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
 827                         close_file(fsp,False);
 828                         END_PROFILE(SMBntcreateX);
 829                         return ERROR_NT(NT_STATUS_DISK_FULL);
 830                 }
 831         } else {
 832                 fsp->initial_allocation_size = SMB_ROUNDUP(((SMB_BIG_UINT)file_len),SMB_ROUNDUP_ALLOCATION_SIZE);
 833         }
 834
 835         /*
 836          * If the caller set the extended oplock request bit
 837          * and we granted one (by whatever means) - set the
 838          * correct bit for extended oplock reply.
 839          */
 840
 841         if (oplock_request && lp_fake_oplocks(SNUM(conn)))
 842                 extended_oplock_granted = True;
 843
 844         if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
 845                 extended_oplock_granted = True;
 846
 847 #if 0
 848         /* W2K sends back 42 words here ! If we do the same it breaks offline sync. Go figure... ? JRA. */
 849         set_message(outbuf,42,0,True);
 850 #else
 851         set_message(outbuf,34,0,True);
 852 #endif
 853
 854         p = outbuf + smb_vwv2;
 855
 856         /*
 857          * Currently as we don't support level II oplocks we just report
 858          * exclusive & batch here.
 859          */
 860
 861         if (extended_oplock_granted) {
 862                 if (flags & REQUEST_BATCH_OPLOCK) {
 863                         SCVAL(p,0, BATCH_OPLOCK_RETURN);
 864                 } else {
 865                         SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN);
 866                 }
 867         } else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type)) {
 868                 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
 869         } else {
 870                 SCVAL(p,0,NO_OPLOCK_RETURN);
 871         }
 872
 873         p++;
 874         SSVAL(p,0,fsp->fnum);
 875         p += 2;
 876         if ((create_disposition == FILE_SUPERSEDE) && (smb_action == FILE_WAS_OVERWRITTEN))
 877                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 878         else
 879                 SIVAL(p,0,smb_action);
 880         p += 4;
 881
 882         /* Create time. */
 883         c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
 884
 885         if (lp_dos_filetime_resolution(SNUM(conn))) {
 886                 c_time &= ~1;
 887                 sbuf.st_atime &= ~1;
 888                 sbuf.st_mtime &= ~1;
 889                 sbuf.st_mtime &= ~1;
 890         }
 891
 892         put_long_date(p,c_time);
 893         p += 8;
 894         put_long_date(p,sbuf.st_atime); /* access time */
 895         p += 8;
 896         put_long_date(p,sbuf.st_mtime); /* write time */
 897         p += 8;
 898         put_long_date(p,sbuf.st_mtime); /* change time */
 899         p += 8;
 900         SIVAL(p,0,fmode); /* File Attributes. */
 901         p += 4;
 902         SOFF_T(p, 0, get_allocation_size(fsp,&sbuf));
 903         p += 8;
 904         SOFF_T(p,0,file_len);
 905         p += 12;
 906         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 907
 908         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name));
 909
 910         result = chain_reply(inbuf,outbuf,length,bufsize);
 911         END_PROFILE(SMBntcreateX);
 912         return result;
 913 }
 914
 915 /****************************************************************************
 916  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 917 ****************************************************************************/
 918
 919 static int do_nt_transact_create_pipe( connection_struct *conn,
 920                                         char *inbuf, char *outbuf, int length,
 921                                         int bufsize, char **ppsetup, char **ppparams,
 922                                         char **ppdata)
 923 {
 924         pstring fname;
 925         int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount);
 926         char *params = *ppparams;
 927         int ret;
 928         int pnum = -1;
 929         char *p = NULL;
 930
 931         /*
 932          * Ensure minimum number of parameters sent.
 933          */
 934
 935         if(total_parameter_count < 54) {
 936                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)total_parameter_count));
 937                 return ERROR_DOS(ERRDOS,ERRnoaccess);
 938         }
 939
 940         srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
 941
 942         if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0)
 943                 return ret;
 944
 945         /* Realloc the size of parameters and data we will return */
 946         params = Realloc(*ppparams, 69);
 947         if(params == NULL)
 948                 return ERROR_DOS(ERRDOS,ERRnomem);
 949
 950         *ppparams = params;
 951
 952         memset((char *)params,'\0',69);
 953
 954         p = params;
 955         SCVAL(p,0,NO_OPLOCK_RETURN);
 956
 957         p += 2;
 958         SSVAL(p,0,pnum);
 959         p += 2;
 960         SIVAL(p,0,FILE_WAS_OPENED);
 961         p += 8;
 962
 963         p += 32;
 964         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 965         p += 20;
 966         /* File type. */
 967         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 968         /* Device state. */
 969         SSVAL(p,2, 0x5FF); /* ? */
 970
 971         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 972
 973         /* Send the required number of replies */
 974         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 69, *ppdata, 0);
 975
 976         return -1;
 977 }
 978
 979 /****************************************************************************
 980  Internal fn to set security descriptors.
 981 ****************************************************************************/
 982
 983 static NTSTATUS set_sd(files_struct *fsp, char *data, uint32 sd_len, uint32 security_info_sent)
 984 {
 985         prs_struct pd;
 986         SEC_DESC *psd = NULL;
 987         TALLOC_CTX *mem_ctx;
 988         BOOL ret;
 989
 990         if (sd_len == 0) {
 991                 return NT_STATUS_OK;
 992         }
 993
 994         /*
 995          * Init the parse struct we will unmarshall from.
 996          */
 997
 998         if ((mem_ctx = talloc_init("set_sd")) == NULL) {
 999                 DEBUG(0,("set_sd: talloc_init failed.\n"));
1000                 return NT_STATUS_NO_MEMORY;
1001         }
1002
1003         prs_init(&pd, 0, mem_ctx, UNMARSHALL);
1004
1005         /*
1006          * Setup the prs_struct to point at the memory we just
1007          * allocated.
1008          */
1009
1010         prs_give_memory( &pd, data, sd_len, False);
1011
1012         /*
1013          * Finally, unmarshall from the data buffer.
1014          */
1015
1016         if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1017                 DEBUG(0,("set_sd: Error in unmarshalling security descriptor.\n"));
1018                 /*
1019                  * Return access denied for want of a better error message..
1020                  */
1021                 talloc_destroy(mem_ctx);
1022                 return NT_STATUS_NO_MEMORY;
1023         }
1024
1025         if (psd->off_owner_sid==0)
1026                 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
1027         if (psd->off_grp_sid==0)
1028                 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
1029         if (psd->off_sacl==0)
1030                 security_info_sent &= ~SACL_SECURITY_INFORMATION;
1031         if (psd->off_dacl==0)
1032                 security_info_sent &= ~DACL_SECURITY_INFORMATION;
1033
1034         ret = fsp->conn->vfs_ops.fset_nt_acl( fsp, fsp->fd, security_info_sent, psd);
1035
1036         if (!ret) {
1037                 talloc_destroy(mem_ctx);
1038                 return NT_STATUS_ACCESS_DENIED;
1039         }
1040
1041         talloc_destroy(mem_ctx);
1042
1043         return NT_STATUS_OK;
1044 }
1045
1046 /****************************************************************************
1047  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1048 ****************************************************************************/
1049
1050 static int call_nt_transact_create(connection_struct *conn,
1051                                         char *inbuf, char *outbuf, int length,
1052                                         int bufsize, char **ppsetup, char **ppparams,
1053                                         char **ppdata)
1054 {
1055         pstring fname;
1056         char *params = *ppparams;
1057         char *data = *ppdata;
1058         int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount);
1059         /* Breakout the oplock request bits so we can set the reply bits separately. */
1060         int oplock_request = 0;
1061         mode_t unixmode;
1062         int fmode=0,rmode=0;
1063         SMB_OFF_T file_len = 0;
1064         SMB_STRUCT_STAT sbuf;
1065         int smb_action = 0;
1066         BOOL bad_path = False;
1067         files_struct *fsp = NULL;
1068         char *p = NULL;
1069         BOOL extended_oplock_granted = False;
1070         uint32 flags;
1071         uint32 desired_access;
1072         uint32 file_attributes;
1073         uint32 share_access;
1074         uint32 create_disposition;
1075         uint32 create_options;
1076         uint32 sd_len;
1077         uint16 root_dir_fid;
1078         SMB_BIG_UINT allocation_size = 0;
1079         int smb_ofun;
1080         int smb_open_mode;
1081         int smb_attr;
1082         time_t c_time;
1083         NTSTATUS nt_status;
1084
1085         DEBUG(5,("call_nt_transact_create\n"));
1086
1087         /*
1088          * If it's an IPC, use the pipe handler.
1089          */
1090
1091         if (IS_IPC(conn)) {
1092                 if (lp_nt_pipe_support())
1093                         return do_nt_transact_create_pipe(conn, inbuf, outbuf, length,
1094                                         bufsize, ppsetup, ppparams, ppdata);
1095                 else
1096                         return ERROR_DOS(ERRDOS,ERRnoaccess);
1097         }
1098
1099         /*
1100          * Ensure minimum number of parameters sent.
1101          */
1102
1103         if(total_parameter_count < 54) {
1104                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)total_parameter_count));
1105                 return ERROR_DOS(ERRDOS,ERRnoaccess);
1106         }
1107
1108         flags = IVAL(params,0);
1109         desired_access = IVAL(params,8);
1110         file_attributes = IVAL(params,20);
1111         share_access = IVAL(params,24);
1112         create_disposition = IVAL(params,28);
1113         create_options = IVAL(params,32);
1114         sd_len = IVAL(params,36);
1115         root_dir_fid = (uint16)IVAL(params,4);
1116         smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
1117
1118         if (create_options & FILE_OPEN_BY_FILE_ID) {
1119                 END_PROFILE(SMBntcreateX);
1120                 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1121         }
1122
1123         /*
1124          * We need to construct the open_and_X ofun value from the
1125          * NT values, as that's what our code is structured to accept.
1126          */
1127
1128         if((smb_ofun = map_create_disposition( create_disposition )) == -1)
1129                 return ERROR_DOS(ERRDOS,ERRbadmem);
1130
1131         /*
1132          * Get the file name.
1133          */
1134
1135         if(root_dir_fid != 0) {
1136                 /*
1137                  * This filename is relative to a directory fid.
1138                  */
1139
1140                 files_struct *dir_fsp = file_fsp(params,4);
1141                 size_t dir_name_len;
1142
1143                 if(!dir_fsp)
1144                         return ERROR_DOS(ERRDOS,ERRbadfid);
1145
1146                 if(!dir_fsp->is_directory) {
1147
1148                         srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
1149
1150                         /*
1151                          * Check to see if this is a mac fork of some kind.
1152                          */
1153
1154                         if( strchr_m(fname, ':'))
1155                                 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1156
1157                         return ERROR_DOS(ERRDOS,ERRbadfid);
1158                 }
1159
1160                 /*
1161                  * Copy in the base directory name.
1162                  */
1163
1164                 pstrcpy( fname, dir_fsp->fsp_name );
1165                 dir_name_len = strlen(fname);
1166
1167                 /*
1168                  * Ensure it ends in a '\'.
1169                  */
1170
1171                 if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) {
1172                         pstrcat(fname, "\\");
1173                         dir_name_len++;
1174                 }
1175
1176                 srvstr_pull(inbuf, &fname[dir_name_len], params+53, sizeof(fname)-dir_name_len,
1177                                 total_parameter_count-53, STR_TERMINATE);
1178         } else {
1179                 srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
1180
1181                 /*
1182                  * Check to see if this is a mac fork of some kind.
1183                  */
1184
1185                 if( strchr_m(fname, ':'))
1186                         return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1187         }
1188
1189         /*
1190          * Now contruct the smb_open_mode value from the desired access
1191          * and the share access.
1192          */
1193
1194         if((smb_open_mode = map_share_mode( fname, create_options, &desired_access,
1195                                                 share_access, file_attributes)) == -1)
1196                 return ERROR_DOS(ERRDOS,ERRnoaccess);
1197
1198         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1199         oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
1200
1201         /*
1202          * Check if POSIX semantics are wanted.
1203          */
1204
1205         set_posix_case_semantics(file_attributes);
1206
1207         RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
1208
1209         unix_convert(fname,conn,0,&bad_path,&sbuf);
1210
1211         unixmode = unix_mode(conn,smb_attr | aARCH, fname);
1212
1213         /*
1214          * If it's a request for a directory open, deal with it separately.
1215          */
1216
1217         if(create_options & FILE_DIRECTORY_FILE) {
1218
1219                 /* Can't open a temp directory. IFS kit test. */
1220                 if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
1221                         END_PROFILE(SMBntcreateX);
1222                         return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1223                 }
1224
1225                 oplock_request = 0;
1226
1227                 /*
1228                  * We will get a create directory here if the Win32
1229                  * app specified a security descriptor in the
1230                  * CreateDirectory() call.
1231                  */
1232
1233                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
1234
1235                 if(!fsp) {
1236                         restore_case_semantics(file_attributes);
1237                         set_bad_path_error(errno, bad_path);
1238                         return(UNIXERROR(ERRDOS,ERRnoaccess));
1239                 }
1240
1241         } else {
1242
1243                 /*
1244                  * Ordinary file case.
1245                  */
1246
1247                 fsp = open_file_shared1(conn,fname,&sbuf,desired_access,
1248                                                 smb_open_mode,smb_ofun,unixmode,
1249                                                 oplock_request,&rmode,&smb_action);
1250
1251                 if (!fsp) {
1252
1253                         if(errno == EISDIR) {
1254
1255                                 /*
1256                                  * Fail the open if it was explicitly a non-directory file.
1257                                  */
1258
1259                                 if (create_options & FILE_NON_DIRECTORY_FILE) {
1260                                         restore_case_semantics(file_attributes);
1261                                         SSVAL(outbuf, smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
1262                                         return ERROR_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
1263                                 }
1264
1265                                 oplock_request = 0;
1266                                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
1267
1268                                 if(!fsp) {
1269                                         restore_case_semantics(file_attributes);
1270                                         set_bad_path_error(errno, bad_path);
1271                                         return(UNIXERROR(ERRDOS,ERRnoaccess));
1272                                 }
1273                         } else {
1274                                 restore_case_semantics(file_attributes);
1275                                 set_bad_path_error(errno, bad_path);
1276                                 return(UNIXERROR(ERRDOS,ERRnoaccess));
1277                         }
1278                 }
1279
1280                 file_len = sbuf.st_size;
1281                 fmode = dos_mode(conn,fname,&sbuf);
1282                 if(fmode == 0)
1283                         fmode = FILE_ATTRIBUTE_NORMAL;
1284
1285                 if (fmode & aDIR) {
1286                         close_file(fsp,False);
1287                         restore_case_semantics(file_attributes);
1288                         return ERROR_DOS(ERRDOS,ERRnoaccess);
1289                 }
1290
1291                 /*
1292                  * If the caller set the extended oplock request bit
1293                  * and we granted one (by whatever means) - set the
1294                  * correct bit for extended oplock reply.
1295                  */
1296
1297                 if (oplock_request && lp_fake_oplocks(SNUM(conn)))
1298                         extended_oplock_granted = True;
1299
1300                 if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
1301                         extended_oplock_granted = True;
1302         }
1303
1304         /*
1305          * Now try and apply the desired SD.
1306          */
1307
1308         if (sd_len && !NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, sd_len, ALL_SECURITY_INFORMATION))) {
1309                 close_file(fsp,False);
1310                 restore_case_semantics(file_attributes);
1311                 return ERROR_NT(nt_status);
1312         }
1313
1314         restore_case_semantics(file_attributes);
1315
1316         /* Save the requested allocation size. */
1317         allocation_size = (SMB_BIG_UINT)IVAL(params,12);
1318 #ifdef LARGE_SMB_OFF_T
1319         allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
1320 #endif
1321         if (allocation_size && (allocation_size > file_len)) {
1322                 fsp->initial_allocation_size = SMB_ROUNDUP(allocation_size,SMB_ROUNDUP_ALLOCATION_SIZE);
1323                 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1324                         close_file(fsp,False);
1325                         END_PROFILE(SMBntcreateX);
1326                         return ERROR_NT(NT_STATUS_DISK_FULL);
1327                 }
1328         } else {
1329                 fsp->initial_allocation_size = SMB_ROUNDUP(((SMB_BIG_UINT)file_len),SMB_ROUNDUP_ALLOCATION_SIZE);
1330         }
1331
1332         /* Realloc the size of parameters and data we will return */
1333         params = Realloc(*ppparams, 69);
1334         if(params == NULL)
1335                 return ERROR_DOS(ERRDOS,ERRnomem);
1336
1337         *ppparams = params;
1338
1339         memset((char *)params,'\0',69);
1340
1341         p = params;
1342         if (extended_oplock_granted)
1343                 SCVAL(p,0, BATCH_OPLOCK_RETURN);
1344         else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type))
1345                 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
1346         else
1347                 SCVAL(p,0,NO_OPLOCK_RETURN);
1348
1349         p += 2;
1350         SSVAL(p,0,fsp->fnum);
1351         p += 2;
1352         if ((create_disposition == FILE_SUPERSEDE) && (smb_action == FILE_WAS_OVERWRITTEN))
1353                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1354         else
1355                 SIVAL(p,0,smb_action);
1356         p += 8;
1357
1358         /* Create time. */
1359         c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
1360
1361         if (lp_dos_filetime_resolution(SNUM(conn))) {
1362                 c_time &= ~1;
1363                 sbuf.st_atime &= ~1;
1364                 sbuf.st_mtime &= ~1;
1365                 sbuf.st_mtime &= ~1;
1366         }
1367
1368         put_long_date(p,c_time);
1369         p += 8;
1370         put_long_date(p,sbuf.st_atime); /* access time */
1371         p += 8;
1372         put_long_date(p,sbuf.st_mtime); /* write time */
1373         p += 8;
1374         put_long_date(p,sbuf.st_mtime); /* change time */
1375         p += 8;
1376         SIVAL(p,0,fmode); /* File Attributes. */
1377         p += 4;
1378         SOFF_T(p, 0, get_allocation_size(fsp,&sbuf));
1379         p += 8;
1380         SOFF_T(p,0,file_len);
1381
1382         DEBUG(5,("call_nt_transact_create: open name = %s\n", fname));
1383
1384         /* Send the required number of replies */
1385         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 69, *ppdata, 0);
1386
1387         return -1;
1388 }
1389
1390 /****************************************************************************
1391  Reply to a NT CANCEL request.
1392 ****************************************************************************/
1393
1394 int reply_ntcancel(connection_struct *conn,
1395                    char *inbuf,char *outbuf,int length,int bufsize)
1396 {
1397         /*
1398          * Go through and cancel any pending change notifies.
1399          */
1400
1401         int mid = SVAL(inbuf,smb_mid);
1402         START_PROFILE(SMBntcancel);
1403         remove_pending_change_notify_requests_by_mid(mid);
1404         remove_pending_lock_requests_by_mid(mid);
1405
1406         DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", mid));
1407
1408         END_PROFILE(SMBntcancel);
1409         return(-1);
1410 }
1411
1412 /****************************************************************************
1413  Reply to an unsolicited SMBNTtranss - just ignore it!
1414 ****************************************************************************/
1415
1416 int reply_nttranss(connection_struct *conn,
1417                    char *inbuf,char *outbuf,int length,int bufsize)
1418 {
1419         START_PROFILE(SMBnttranss);
1420         DEBUG(4,("Ignoring nttranss of length %d\n",length));
1421         END_PROFILE(SMBnttranss);
1422         return(-1);
1423 }
1424
1425 /****************************************************************************
1426  Reply to a notify change - queue the request and
1427  don't allow a directory to be opened.
1428 ****************************************************************************/
1429
1430 static int call_nt_transact_notify_change(connection_struct *conn,
1431                                    char *inbuf, char *outbuf, int length,
1432                                    int bufsize,
1433                                    char **ppsetup,
1434                                    char **ppparams, char **ppdata)
1435 {
1436         char *setup = *ppsetup;
1437         files_struct *fsp;
1438         uint32 flags;
1439
1440         fsp = file_fsp(setup,4);
1441         flags = IVAL(setup, 0);
1442
1443         DEBUG(3,("call_nt_transact_notify_change\n"));
1444
1445         if(!fsp)
1446                 return ERROR_DOS(ERRDOS,ERRbadfid);
1447
1448         if((!fsp->is_directory) || (conn != fsp->conn))
1449                 return ERROR_DOS(ERRDOS,ERRbadfid);
1450
1451         if (!change_notify_set(inbuf, fsp, conn, flags))
1452                 return(UNIXERROR(ERRDOS,ERRbadfid));
1453
1454         DEBUG(3,("call_nt_transact_notify_change: notify change called on directory \
1455 name = %s\n", fsp->fsp_name ));
1456
1457         return -1;
1458 }
1459
1460 /****************************************************************************
1461  Reply to an NT transact rename command.
1462 ****************************************************************************/
1463
1464 static int call_nt_transact_rename(connection_struct *conn,
1465                                    char *inbuf, char *outbuf, int length,
1466                                    int bufsize,
1467                                    char **ppsetup, char **ppparams, char **ppdata)
1468 {
1469         char *params = *ppparams;
1470         pstring new_name;
1471         files_struct *fsp = file_fsp(params, 0);
1472         BOOL replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False;
1473         NTSTATUS status;
1474
1475         CHECK_FSP(fsp, conn);
1476         srvstr_pull(inbuf, new_name, params+4, sizeof(new_name), -1, STR_TERMINATE);
1477
1478         status = rename_internals(conn, fsp->fsp_name,
1479                                   new_name, replace_if_exists);
1480         if (!NT_STATUS_IS_OK(status))
1481                 return ERROR_NT(status);
1482
1483         /*
1484          * Rename was successful.
1485          */
1486         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1487
1488         DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
1489                  fsp->fsp_name, new_name));
1490
1491         /*
1492          * Win2k needs a changenotify request response before it will
1493          * update after a rename..
1494          */
1495
1496         process_pending_change_notify_queue((time_t)0);
1497
1498         return -1;
1499 }
1500
1501 /******************************************************************************
1502  Fake up a completely empty SD.
1503 *******************************************************************************/
1504
1505 static size_t get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1506 {
1507         extern DOM_SID global_sid_World;
1508         size_t sd_size;
1509
1510         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1511         if(!*ppsd) {
1512                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1513                 sd_size = 0;
1514         }
1515
1516         return sd_size;
1517 }
1518
1519 /****************************************************************************
1520  Reply to query a security descriptor - currently this is not implemented (it
1521  is planned to be though). Right now it just returns the same thing NT would
1522  when queried on a FAT filesystem. JRA.
1523 ****************************************************************************/
1524
1525 static int call_nt_transact_query_security_desc(connection_struct *conn,
1526                                                 char *inbuf, char *outbuf,
1527                                                 int length, int bufsize,
1528                                                 char **ppsetup, char **ppparams, char **ppdata)
1529 {
1530         uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
1531         char *params = *ppparams;
1532         char *data = *ppdata;
1533         prs_struct pd;
1534         SEC_DESC *psd = NULL;
1535         size_t sd_size;
1536         TALLOC_CTX *mem_ctx;
1537
1538         files_struct *fsp = file_fsp(params,0);
1539
1540         if(!fsp)
1541                 return ERROR_DOS(ERRDOS,ERRbadfid);
1542
1543         DEBUG(3,("call_nt_transact_query_security_desc: file = %s\n", fsp->fsp_name ));
1544
1545         params = Realloc(*ppparams, 4);
1546         if(params == NULL)
1547                 return ERROR_DOS(ERRDOS,ERRnomem);
1548
1549         *ppparams = params;
1550
1551         if ((mem_ctx = talloc_init("call_nt_transact_query_security_desc")) == NULL) {
1552                 DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n"));
1553                 return ERROR_DOS(ERRDOS,ERRnomem);
1554         }
1555
1556         /*
1557          * Get the permissions to return.
1558          */
1559
1560         if (!lp_nt_acl_support(SNUM(conn)))
1561                 sd_size = get_null_nt_acl(mem_ctx, &psd);
1562         else
1563                 sd_size = conn->vfs_ops.fget_nt_acl(fsp, fsp->fd, &psd);
1564
1565         if (sd_size == 0) {
1566                 talloc_destroy(mem_ctx);
1567                 return(UNIXERROR(ERRDOS,ERRnoaccess));
1568         }
1569
1570         DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %d.\n",(int)sd_size));
1571
1572         SIVAL(params,0,(uint32)sd_size);
1573
1574         if(max_data_count < sd_size) {
1575
1576                 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_BUFFER_TOO_SMALL,
1577                         params, 4, *ppdata, 0);
1578                 talloc_destroy(mem_ctx);
1579                 return -1;
1580         }
1581
1582         /*
1583          * Allocate the data we will point this at.
1584          */
1585
1586         data = Realloc(*ppdata, sd_size);
1587         if(data == NULL) {
1588                 talloc_destroy(mem_ctx);
1589                 return ERROR_DOS(ERRDOS,ERRnomem);
1590         }
1591
1592         *ppdata = data;
1593
1594         memset(data, '\0', sd_size);
1595
1596         /*
1597          * Init the parse struct we will marshall into.
1598          */
1599
1600         prs_init(&pd, 0, mem_ctx, MARSHALL);
1601
1602         /*
1603          * Setup the prs_struct to point at the memory we just
1604          * allocated.
1605          */
1606
1607         prs_give_memory( &pd, data, (uint32)sd_size, False);
1608
1609         /*
1610          * Finally, linearize into the outgoing buffer.
1611          */
1612
1613         if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1614                 DEBUG(0,("call_nt_transact_query_security_desc: Error in marshalling \
1615 security descriptor.\n"));
1616                 /*
1617                  * Return access denied for want of a better error message..
1618                  */
1619                 talloc_destroy(mem_ctx);
1620                 return(UNIXERROR(ERRDOS,ERRnoaccess));
1621         }
1622
1623         /*
1624          * Now we can delete the security descriptor.
1625          */
1626
1627         talloc_destroy(mem_ctx);
1628
1629         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 4, data, (int)sd_size);
1630         return -1;
1631 }
1632
1633 /****************************************************************************
1634  Reply to set a security descriptor. Map to UNIX perms.
1635 ****************************************************************************/
1636
1637 static int call_nt_transact_set_security_desc(connection_struct *conn,
1638                                                                         char *inbuf, char *outbuf, int length,
1639                                                                         int bufsize, char **ppsetup,
1640                                                                         char **ppparams, char **ppdata)
1641 {
1642         uint32 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
1643         char *params= *ppparams;
1644         char *data = *ppdata;
1645         uint32 total_data_count = (uint32)IVAL(inbuf, smb_nts_TotalDataCount);
1646         files_struct *fsp = NULL;
1647         uint32 security_info_sent = 0;
1648         NTSTATUS nt_status;
1649
1650         if(total_parameter_count < 8)
1651                 return ERROR_DOS(ERRDOS,ERRbadfunc);
1652
1653         if((fsp = file_fsp(params,0)) == NULL)
1654                 return ERROR_DOS(ERRDOS,ERRbadfid);
1655
1656         if(!lp_nt_acl_support(SNUM(conn)))
1657                 goto done;
1658
1659         security_info_sent = IVAL(params,4);
1660
1661         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1662                 (unsigned int)security_info_sent ));
1663
1664         if (total_data_count == 0)
1665                 return ERROR_DOS(ERRDOS, ERRnoaccess);
1666
1667         if (!NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, total_data_count, security_info_sent)))
1668                 return ERROR_NT(nt_status);
1669
1670   done:
1671
1672         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1673         return -1;
1674 }
1675
1676 /****************************************************************************
1677  Reply to NT IOCTL
1678 ****************************************************************************/
1679 static int call_nt_transact_ioctl(connection_struct *conn,
1680                                   char *inbuf, char *outbuf, int length,
1681                                   int bufsize,
1682                                   char **ppsetup, int setup_count,
1683                                   char **ppparams, int parameter_count,
1684                                   char **ppdata, int data_count)
1685 {
1686         unsigned fnum, control;
1687         static BOOL logged_message;
1688
1689         if (setup_count != 8) {
1690                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1691                 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1692         }
1693
1694         fnum = SVAL(*ppsetup, 4);
1695         control = IVAL(*ppsetup, 0);
1696
1697         DEBUG(6,("call_nt_transact_ioctl: fnum=%d control=0x%x\n",
1698                  fnum, control));
1699
1700         switch (control) {
1701         case NTIOCTL_SET_SPARSE:
1702                 /* pretend this succeeded - tho strictly we should
1703                    mark the file sparse (if the local fs supports it)
1704                    so we can know if we need to pre-allocate or not */
1705                 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1706                 return -1;
1707
1708         default:
1709                 if (!logged_message) {
1710                         logged_message = True; /* Only print this once... */
1711                         DEBUG(3,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
1712                                  control));
1713                 }
1714         }
1715
1716         return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1717 }
1718
1719 /****************************************************************************
1720  Reply to a SMBNTtrans.
1721 ****************************************************************************/
1722
1723 int reply_nttrans(connection_struct *conn,
1724                         char *inbuf,char *outbuf,int length,int bufsize)
1725 {
1726         int  outsize = 0;
1727 #if 0 /* Not used. */
1728         uint16 max_setup_count = CVAL(inbuf, smb_nt_MaxSetupCount);
1729         uint32 max_parameter_count = IVAL(inbuf, smb_nt_MaxParameterCount);
1730         uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
1731 #endif /* Not used. */
1732         uint32 total_parameter_count = IVAL(inbuf, smb_nt_TotalParameterCount);
1733         uint32 total_data_count = IVAL(inbuf, smb_nt_TotalDataCount);
1734         uint32 parameter_count = IVAL(inbuf,smb_nt_ParameterCount);
1735         uint32 parameter_offset = IVAL(inbuf,smb_nt_ParameterOffset);
1736         uint32 data_count = IVAL(inbuf,smb_nt_DataCount);
1737         uint32 data_offset = IVAL(inbuf,smb_nt_DataOffset);
1738         uint16 setup_count = 2*CVAL(inbuf,smb_nt_SetupCount); /* setup count is in *words* */
1739         uint16 function_code = SVAL( inbuf, smb_nt_Function);
1740         char *params = NULL, *data = NULL, *setup = NULL;
1741         uint32 num_params_sofar, num_data_sofar;
1742         START_PROFILE(SMBnttrans);
1743
1744         if(global_oplock_break &&
1745                         ((function_code == NT_TRANSACT_CREATE) ||
1746                          (function_code == NT_TRANSACT_RENAME))) {
1747                 /*
1748                  * Queue this open message as we are the process of an oplock break.
1749                  */
1750
1751                 DEBUG(2,("reply_nttrans: queueing message code 0x%x \
1752 due to being in oplock break state.\n", (unsigned int)function_code ));
1753
1754                 push_oplock_pending_smb_message( inbuf, length);
1755                 END_PROFILE(SMBnttrans);
1756                 return -1;
1757         }
1758
1759         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
1760                 END_PROFILE(SMBnttrans);
1761                 return ERROR_DOS(ERRSRV,ERRaccess);
1762         }
1763
1764         outsize = set_message(outbuf,0,0,True);
1765
1766         /*
1767          * All nttrans messages we handle have smb_wct == 19 + setup_count.
1768          * Ensure this is so as a sanity check.
1769          */
1770
1771         if(CVAL(inbuf, smb_wct) != 19 + (setup_count/2)) {
1772                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
1773                         CVAL(inbuf, smb_wct), 19 + (setup_count/2)));
1774                 goto bad_param;
1775         }
1776
1777         /* Allocate the space for the setup, the maximum needed parameters and data */
1778
1779         if(setup_count > 0)
1780                 setup = (char *)malloc(setup_count);
1781         if (total_parameter_count > 0)
1782                 params = (char *)malloc(total_parameter_count);
1783         if (total_data_count > 0)
1784                 data = (char *)malloc(total_data_count);
1785
1786         if ((total_parameter_count && !params)  || (total_data_count && !data) ||
1787                                 (setup_count && !setup)) {
1788                 SAFE_FREE(setup);
1789                 SAFE_FREE(params);
1790                 SAFE_FREE(data);
1791                 DEBUG(0,("reply_nttrans : Out of memory\n"));
1792                 END_PROFILE(SMBnttrans);
1793                 return ERROR_DOS(ERRDOS,ERRnomem);
1794         }
1795
1796         /* Copy the param and data bytes sent with this request into the params buffer */
1797         num_params_sofar = parameter_count;
1798         num_data_sofar = data_count;
1799
1800         if (parameter_count > total_parameter_count || data_count > total_data_count)
1801                 goto bad_param;
1802
1803         if(setup) {
1804                 DEBUG(10,("reply_nttrans: setup_count = %d\n", setup_count));
1805                 if ((smb_nt_SetupStart + setup_count < smb_nt_SetupStart) ||
1806                                 (smb_nt_SetupStart + setup_count < setup_count))
1807                         goto bad_param;
1808                 if (smb_nt_SetupStart + setup_count > length)
1809                         goto bad_param;
1810
1811                 memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count);
1812                 dump_data(10, setup, setup_count);
1813         }
1814         if(params) {
1815                 DEBUG(10,("reply_nttrans: parameter_count = %d\n", parameter_count));
1816                 if ((parameter_offset + parameter_count < parameter_offset) ||
1817                                 (parameter_offset + parameter_count < parameter_count))
1818                         goto bad_param;
1819                 if (smb_base(inbuf) + parameter_offset + parameter_count > inbuf + length)
1820                         goto bad_param;
1821
1822                 memcpy( params, smb_base(inbuf) + parameter_offset, parameter_count);
1823                 dump_data(10, params, parameter_count);
1824         }
1825         if(data) {
1826                 DEBUG(10,("reply_nttrans: data_count = %d\n",data_count));
1827                 if ((data_offset + data_count < data_offset) || (data_offset + data_count < data_count))
1828                         goto bad_param;
1829                 if (smb_base(inbuf) + data_offset + data_count > inbuf + length)
1830                         goto bad_param;
1831
1832                 memcpy( data, smb_base(inbuf) + data_offset, data_count);
1833                 dump_data(10, data, data_count);
1834         }
1835
1836         if(num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
1837                 /* We need to send an interim response then receive the rest
1838                         of the parameter/data bytes */
1839                 outsize = set_message(outbuf,0,0,True);
1840                 if (!send_smb(smbd_server_fd(),outbuf))
1841                         exit_server("reply_nttrans: send_smb failed.");
1842
1843                 while( num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
1844                         BOOL ret;
1845                         uint32 parameter_displacement;
1846                         uint32 data_displacement;
1847
1848                         ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT);
1849
1850                         if((ret && (CVAL(inbuf, smb_com) != SMBnttranss)) || !ret) {
1851                                 outsize = set_message(outbuf,0,0,True);
1852                                 if(ret) {
1853                                         DEBUG(0,("reply_nttrans: Invalid secondary nttrans packet\n"));
1854                                 } else {
1855                                         DEBUG(0,("reply_nttrans: %s in getting secondary nttrans response.\n",
1856                                                 (smb_read_error == READ_ERROR) ? "error" : "timeout" ));
1857                                 }
1858                                 goto bad_param;
1859                         }
1860
1861                         /* Revise total_params and total_data in case they have changed downwards */
1862                         if (IVAL(inbuf, smb_nts_TotalParameterCount) < total_parameter_count)
1863                                 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
1864                         if (IVAL(inbuf, smb_nts_TotalDataCount) < total_data_count)
1865                                 total_data_count = IVAL(inbuf, smb_nts_TotalDataCount);
1866
1867                         parameter_count = IVAL(inbuf,smb_nts_ParameterCount);
1868                         parameter_offset = IVAL(inbuf, smb_nts_ParameterOffset);
1869                         parameter_displacement = IVAL(inbuf, smb_nts_ParameterDisplacement);
1870                         num_params_sofar += parameter_count;
1871
1872                         data_count = IVAL(inbuf, smb_nts_DataCount);
1873                         data_displacement = IVAL(inbuf, smb_nts_DataDisplacement);
1874                         data_offset = IVAL(inbuf, smb_nts_DataDisplacement);
1875                         num_data_sofar += data_count;
1876
1877                         if (num_params_sofar > total_parameter_count || num_data_sofar > total_data_count) {
1878                                 DEBUG(0,("reply_nttrans2: data overflow in secondary nttrans packet"));
1879                                 goto bad_param;
1880                         }
1881
1882                         if (parameter_count) {
1883                                 if (parameter_displacement + parameter_count >= total_parameter_count)
1884                                         goto bad_param;
1885                                 if ((parameter_displacement + parameter_count < parameter_displacement) ||
1886                                                 (parameter_displacement + parameter_count < parameter_count))
1887                                         goto bad_param;
1888                                 if (smb_base(inbuf) + parameter_offset + parameter_count >= inbuf + bufsize)
1889                                         goto bad_param;
1890                                 if (parameter_displacement + params < params)
1891                                         goto bad_param;
1892
1893                                 memcpy( &params[parameter_displacement], smb_base(inbuf) + parameter_offset, parameter_count);
1894                         }
1895
1896                         if (data_count) {
1897                                 if (data_displacement + data_count >= total_data_count)
1898                                         goto bad_param;
1899                                 if ((data_displacement + data_count < data_displacement) ||
1900                                                 (data_displacement + data_count < data_count))
1901                                         goto bad_param;
1902                                 if (smb_base(inbuf) + data_offset + data_count >= inbuf + bufsize)
1903                                         goto bad_param;
1904                                 if (data_displacement + data < data)
1905                                         goto bad_param;
1906
1907                                 memcpy( &data[data_displacement], smb_base(inbuf)+ data_offset, data_count);
1908                         }
1909                 }
1910         }
1911
1912         if (Protocol >= PROTOCOL_NT1)
1913                 SSVAL(outbuf,smb_flg2,SVAL(outbuf,smb_flg2) | FLAGS2_IS_LONG_NAME);
1914
1915         /* Now we must call the relevant NT_TRANS function */
1916         switch(function_code) {
1917                 case NT_TRANSACT_CREATE:
1918                         START_PROFILE_NESTED(NT_transact_create);
1919                         outsize = call_nt_transact_create(conn, inbuf, outbuf,
1920                                         length, bufsize,
1921                                         &setup, &params, &data);
1922                         END_PROFILE_NESTED(NT_transact_create);
1923                         break;
1924                 case NT_TRANSACT_IOCTL:
1925                         START_PROFILE_NESTED(NT_transact_ioctl);
1926                         outsize = call_nt_transact_ioctl(conn, inbuf, outbuf,
1927                                                          length, bufsize,
1928                                                          &setup, setup_count,
1929                                                          &params, parameter_count,
1930                                                          &data, data_count);
1931                         END_PROFILE_NESTED(NT_transact_ioctl);
1932                         break;
1933                 case NT_TRANSACT_SET_SECURITY_DESC:
1934                         START_PROFILE_NESTED(NT_transact_set_security_desc);
1935                         outsize = call_nt_transact_set_security_desc(conn, inbuf, outbuf,
1936                                         length, bufsize,
1937                                         &setup, &params, &data);
1938                         END_PROFILE_NESTED(NT_transact_set_security_desc);
1939                         break;
1940                 case NT_TRANSACT_NOTIFY_CHANGE:
1941                         START_PROFILE_NESTED(NT_transact_notify_change);
1942                         outsize = call_nt_transact_notify_change(conn, inbuf, outbuf,
1943                                         length, bufsize,
1944                                         &setup, &params, &data);
1945                         END_PROFILE_NESTED(NT_transact_notify_change);
1946                         break;
1947                 case NT_TRANSACT_RENAME:
1948                         START_PROFILE_NESTED(NT_transact_rename);
1949                         outsize = call_nt_transact_rename(conn, inbuf, outbuf,
1950                                         length, bufsize,
1951                                         &setup, &params, &data);
1952                         END_PROFILE_NESTED(NT_transact_rename);
1953                         break;
1954
1955                 case NT_TRANSACT_QUERY_SECURITY_DESC:
1956                         START_PROFILE_NESTED(NT_transact_query_security_desc);
1957                         outsize = call_nt_transact_query_security_desc(conn, inbuf, outbuf,
1958                                         length, bufsize,
1959                                         &setup, &params, &data);
1960                         END_PROFILE_NESTED(NT_transact_query_security_desc);
1961                         break;
1962                 default:
1963                         /* Error in request */
1964                         DEBUG(0,("reply_nttrans: Unknown request %d in nttrans call\n", function_code));
1965                         SAFE_FREE(setup);
1966                         SAFE_FREE(params);
1967                         SAFE_FREE(data);
1968                         END_PROFILE(SMBnttrans);
1969                         return ERROR_DOS(ERRSRV,ERRerror);
1970         }
1971
1972         /* As we do not know how many data packets will need to be
1973                 returned here the various call_nt_transact_xxxx calls
1974                 must send their own. Thus a call_nt_transact_xxxx routine only
1975                 returns a value other than -1 when it wants to send
1976                 an error packet.
1977         */
1978
1979         SAFE_FREE(setup);
1980         SAFE_FREE(params);
1981         SAFE_FREE(data);
1982         END_PROFILE(SMBnttrans);
1983         return outsize; /* If a correct response was needed the call_nt_transact_xxxx
1984                                 calls have already sent it. If outsize != -1 then it is
1985                                 returning an error packet. */
1986
1987  bad_param:
1988
1989         SAFE_FREE(params);
1990         SAFE_FREE(data);
1991         SAFE_FREE(setup);
1992         END_PROFILE(SMBnttrans);
1993         return ERROR_DOS(ERRDOS,ERRinvalidparam);
1994 }