source3/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         "\\rpcecho",
  44         NULL
  45 };
  46
  47 /* Map generic permissions to file object specific permissions */
  48
  49 struct generic_mapping file_generic_mapping = {
  50         FILE_GENERIC_READ,
  51         FILE_GENERIC_WRITE,
  52         FILE_GENERIC_EXECUTE,
  53         FILE_GENERIC_ALL
  54 };
  55
  56 /****************************************************************************
  57  Send the required number of replies back.
  58  We assume all fields other than the data fields are
  59  set correctly for the type of call.
  60  HACK ! Always assumes smb_setup field is zero.
  61 ****************************************************************************/
  62
  63 static int send_nt_replies(char *inbuf, char *outbuf, int bufsize, NTSTATUS nt_error, char *params,
  64                            int paramsize, char *pdata, int datasize)
  65 {
  66         extern int max_send;
  67         int data_to_send = datasize;
  68         int params_to_send = paramsize;
  69         int useable_space;
  70         char *pp = params;
  71         char *pd = pdata;
  72         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  73         int alignment_offset = 3;
  74         int data_alignment_offset = 0;
  75
  76         /*
  77          * Initially set the wcnt area to be 18 - this is true for all
  78          * transNT replies.
  79          */
  80
  81         set_message(outbuf,18,0,True);
  82
  83         if (NT_STATUS_V(nt_error))
  84                 ERROR_NT(nt_error);
  85
  86         /*
  87          * If there genuinely are no parameters or data to send just send
  88          * the empty packet.
  89          */
  90
  91         if(params_to_send == 0 && data_to_send == 0) {
  92                 if (!send_smb(smbd_server_fd(),outbuf))
  93                         exit_server("send_nt_replies: send_smb failed.");
  94                 return 0;
  95         }
  96
  97         /*
  98          * When sending params and data ensure that both are nicely aligned.
  99          * Only do this alignment when there is also data to send - else
 100          * can cause NT redirector problems.
 101          */
 102
 103         if (((params_to_send % 4) != 0) && (data_to_send != 0))
 104                 data_alignment_offset = 4 - (params_to_send % 4);
 105
 106         /*
 107          * Space is bufsize minus Netbios over TCP header minus SMB header.
 108          * The alignment_offset is to align the param bytes on a four byte
 109          * boundary (2 bytes for data len, one byte pad).
 110          * NT needs this to work correctly.
 111          */
 112
 113         useable_space = bufsize - ((smb_buf(outbuf)+
 114                                 alignment_offset+data_alignment_offset) -
 115                                 outbuf);
 116
 117         /*
 118          * useable_space can never be more than max_send minus the
 119          * alignment offset.
 120          */
 121
 122         useable_space = MIN(useable_space,
 123                                 max_send - (alignment_offset+data_alignment_offset));
 124
 125
 126         while (params_to_send || data_to_send) {
 127
 128                 /*
 129                  * Calculate whether we will totally or partially fill this packet.
 130                  */
 131
 132                 total_sent_thistime = params_to_send + data_to_send +
 133                                         alignment_offset + data_alignment_offset;
 134
 135                 /*
 136                  * We can never send more than useable_space.
 137                  */
 138
 139                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 140
 141                 set_message(outbuf, 18, total_sent_thistime, True);
 142
 143                 /*
 144                  * Set total params and data to be sent.
 145                  */
 146
 147                 SIVAL(outbuf,smb_ntr_TotalParameterCount,paramsize);
 148                 SIVAL(outbuf,smb_ntr_TotalDataCount,datasize);
 149
 150                 /*
 151                  * Calculate how many parameters and data we can fit into
 152                  * this packet. Parameters get precedence.
 153                  */
 154
 155                 params_sent_thistime = MIN(params_to_send,useable_space);
 156                 data_sent_thistime = useable_space - params_sent_thistime;
 157                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 158
 159                 SIVAL(outbuf,smb_ntr_ParameterCount,params_sent_thistime);
 160
 161                 if(params_sent_thistime == 0) {
 162                         SIVAL(outbuf,smb_ntr_ParameterOffset,0);
 163                         SIVAL(outbuf,smb_ntr_ParameterDisplacement,0);
 164                 } else {
 165                         /*
 166                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 167                          * parameter bytes, however the first 4 bytes of outbuf are
 168                          * the Netbios over TCP header. Thus use smb_base() to subtract
 169                          * them from the calculation.
 170                          */
 171
 172                         SIVAL(outbuf,smb_ntr_ParameterOffset,
 173                                 ((smb_buf(outbuf)+alignment_offset) - smb_base(outbuf)));
 174                         /*
 175                          * Absolute displacement of param bytes sent in this packet.
 176                          */
 177
 178                         SIVAL(outbuf,smb_ntr_ParameterDisplacement,pp - params);
 179                 }
 180
 181                 /*
 182                  * Deal with the data portion.
 183                  */
 184
 185                 SIVAL(outbuf,smb_ntr_DataCount, data_sent_thistime);
 186
 187                 if(data_sent_thistime == 0) {
 188                         SIVAL(outbuf,smb_ntr_DataOffset,0);
 189                         SIVAL(outbuf,smb_ntr_DataDisplacement, 0);
 190                 } else {
 191                         /*
 192                          * The offset of the data bytes is the offset of the
 193                          * parameter bytes plus the number of parameters being sent this time.
 194                          */
 195
 196                         SIVAL(outbuf,smb_ntr_DataOffset,((smb_buf(outbuf)+alignment_offset) -
 197                                 smb_base(outbuf)) + params_sent_thistime + data_alignment_offset);
 198                                 SIVAL(outbuf,smb_ntr_DataDisplacement, pd - pdata);
 199                 }
 200
 201                 /*
 202                  * Copy the param bytes into the packet.
 203                  */
 204
 205                 if(params_sent_thistime)
 206                         memcpy((smb_buf(outbuf)+alignment_offset),pp,params_sent_thistime);
 207
 208                 /*
 209                  * Copy in the data bytes
 210                  */
 211
 212                 if(data_sent_thistime)
 213                         memcpy(smb_buf(outbuf)+alignment_offset+params_sent_thistime+
 214                                 data_alignment_offset,pd,data_sent_thistime);
 215
 216                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 217                         params_sent_thistime, data_sent_thistime, useable_space));
 218                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 219                         params_to_send, data_to_send, paramsize, datasize));
 220
 221                 /* Send the packet */
 222                 if (!send_smb(smbd_server_fd(),outbuf))
 223                         exit_server("send_nt_replies: send_smb failed.");
 224
 225                 pp += params_sent_thistime;
 226                 pd += data_sent_thistime;
 227
 228                 params_to_send -= params_sent_thistime;
 229                 data_to_send -= data_sent_thistime;
 230
 231                 /*
 232                  * Sanity check
 233                  */
 234
 235                 if(params_to_send < 0 || data_to_send < 0) {
 236                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 237                                 params_to_send, data_to_send));
 238                         return -1;
 239                 }
 240         }
 241
 242         return 0;
 243 }
 244
 245 /****************************************************************************
 246  Save case statics.
 247 ****************************************************************************/
 248
 249 static BOOL saved_case_sensitive;
 250 static BOOL saved_case_preserve;
 251 static BOOL saved_short_case_preserve;
 252
 253 /****************************************************************************
 254  Save case semantics.
 255 ****************************************************************************/
 256
 257 static void set_posix_case_semantics(uint32 file_attributes)
 258 {
 259         if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS))
 260                 return;
 261
 262         saved_case_sensitive = case_sensitive;
 263         saved_case_preserve = case_preserve;
 264         saved_short_case_preserve = short_case_preserve;
 265
 266         /* Set to POSIX. */
 267         case_sensitive = True;
 268         case_preserve = True;
 269         short_case_preserve = True;
 270 }
 271
 272 /****************************************************************************
 273  Restore case semantics.
 274 ****************************************************************************/
 275
 276 static void restore_case_semantics(uint32 file_attributes)
 277 {
 278         if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS))
 279                 return;
 280
 281         case_sensitive = saved_case_sensitive;
 282         case_preserve = saved_case_preserve;
 283         short_case_preserve = saved_short_case_preserve;
 284 }
 285
 286 /****************************************************************************
 287  Utility function to map create disposition.
 288 ****************************************************************************/
 289
 290 static int map_create_disposition( uint32 create_disposition)
 291 {
 292         int ret;
 293
 294         switch( create_disposition ) {
 295                 case FILE_CREATE:
 296                         /* create if not exist, fail if exist */
 297                         ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_FAIL);
 298                         break;
 299                 case FILE_SUPERSEDE:
 300                 case FILE_OVERWRITE_IF:
 301                         /* create if not exist, trunc if exist */
 302                         ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
 303                         break;
 304                 case FILE_OPEN:
 305                         /* fail if not exist, open if exists */
 306                         ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN);
 307                         break;
 308                 case FILE_OPEN_IF:
 309                         /* create if not exist, open if exists */
 310                         ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_OPEN);
 311                         break;
 312                 case FILE_OVERWRITE:
 313                         /* fail if not exist, truncate if exists */
 314                         ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
 315                         break;
 316                 default:
 317                         DEBUG(0,("map_create_disposition: Incorrect value for create_disposition = %d\n",
 318                                 create_disposition ));
 319                         return -1;
 320         }
 321
 322         DEBUG(10,("map_create_disposition: Mapped create_disposition 0x%lx to 0x%x\n",
 323                         (unsigned long)create_disposition, ret ));
 324
 325         return ret;
 326 }
 327
 328 /****************************************************************************
 329  Utility function to map share modes.
 330 ****************************************************************************/
 331
 332 static int map_share_mode( char *fname, uint32 create_options,
 333                         uint32 *desired_access, uint32 share_access, uint32 file_attributes)
 334 {
 335         int smb_open_mode = -1;
 336
 337         /*
 338          * Convert GENERIC bits to specific bits.
 339          */
 340
 341         se_map_generic(desired_access, &file_generic_mapping);
 342
 343         switch( *desired_access & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA) ) {
 344                 case FILE_READ_DATA:
 345                         smb_open_mode = DOS_OPEN_RDONLY;
 346                         break;
 347                 case FILE_WRITE_DATA:
 348                 case FILE_APPEND_DATA:
 349                 case FILE_WRITE_DATA|FILE_APPEND_DATA:
 350                         smb_open_mode = DOS_OPEN_WRONLY;
 351                         break;
 352                 case FILE_READ_DATA|FILE_WRITE_DATA:
 353                 case FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA:
 354                 case FILE_READ_DATA|FILE_APPEND_DATA:
 355                         smb_open_mode = DOS_OPEN_RDWR;
 356                         break;
 357         }
 358
 359         /*
 360          * NB. For DELETE_ACCESS we should really check the
 361          * directory permissions, as that is what controls
 362          * delete, and for WRITE_DAC_ACCESS we should really
 363          * check the ownership, as that is what controls the
 364          * chmod. Note that this is *NOT* a security hole (this
 365          * note is for you, Andrew) as we are not *allowing*
 366          * the access at this point, the actual unlink or
 367          * chown or chmod call would do this. We are just helping
 368          * clients out by telling them if they have a hope
 369          * of any of this succeeding. POSIX acls may still
 370          * deny the real call. JRA.
 371          */
 372
 373         if (smb_open_mode == -1) {
 374
 375                 if(*desired_access & (DELETE_ACCESS|WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS|SYNCHRONIZE_ACCESS|
 376                                         FILE_EXECUTE|FILE_READ_ATTRIBUTES|
 377                                         FILE_READ_EA|FILE_WRITE_EA|SYSTEM_SECURITY_ACCESS|
 378                                         FILE_WRITE_ATTRIBUTES|READ_CONTROL_ACCESS)) {
 379                         smb_open_mode = DOS_OPEN_RDONLY;
 380                 } else if(*desired_access == 0) {
 381
 382                         /*
 383                          * JRA - NT seems to sometimes send desired_access as zero. play it safe
 384                          * and map to a stat open.
 385                          */
 386
 387                         smb_open_mode = DOS_OPEN_RDONLY;
 388
 389                 } else {
 390                         DEBUG(0,("map_share_mode: Incorrect value 0x%lx for desired_access to file %s\n",
 391                                 (unsigned long)*desired_access, fname));
 392                         return -1;
 393                 }
 394         }
 395
 396         /*
 397          * Set the special bit that means allow share delete.
 398          * This is held outside the normal share mode bits at 1<<15.
 399          * JRA.
 400          */
 401
 402         if(share_access & FILE_SHARE_DELETE) {
 403                 smb_open_mode |= ALLOW_SHARE_DELETE;
 404                 DEBUG(10,("map_share_mode: FILE_SHARE_DELETE requested. open_mode = 0x%x\n", smb_open_mode));
 405         }
 406
 407         /*
 408          * We need to store the intent to open for Delete. This
 409          * is what determines if a delete on close flag can be set.
 410          * This is the wrong way (and place) to store this, but for 2.2 this
 411          * is the only practical way. JRA.
 412          */
 413
 414         if(*desired_access & DELETE_ACCESS) {
 415                 DEBUG(10,("map_share_mode: DELETE_ACCESS requested. open_mode = 0x%x\n", smb_open_mode));
 416         }
 417
 418         if (create_options & FILE_DELETE_ON_CLOSE) {
 419                 /* Implicit delete access is *NOT* requested... */
 420                 smb_open_mode |= DELETE_ON_CLOSE_FLAG;
 421                 DEBUG(10,("map_share_mode: FILE_DELETE_ON_CLOSE requested. open_mode = 0x%x\n", smb_open_mode));
 422         }
 423
 424         /* Add in the requested share mode. */
 425         switch( share_access & (FILE_SHARE_READ|FILE_SHARE_WRITE)) {
 426                 case FILE_SHARE_READ:
 427                         smb_open_mode |= SET_DENY_MODE(DENY_WRITE);
 428                         break;
 429                 case FILE_SHARE_WRITE:
 430                         smb_open_mode |= SET_DENY_MODE(DENY_READ);
 431                         break;
 432                 case (FILE_SHARE_READ|FILE_SHARE_WRITE):
 433                         smb_open_mode |= SET_DENY_MODE(DENY_NONE);
 434                         break;
 435                 case FILE_SHARE_NONE:
 436                         smb_open_mode |= SET_DENY_MODE(DENY_ALL);
 437                         break;
 438         }
 439
 440         /*
 441          * Handle an O_SYNC request.
 442          */
 443
 444         if(file_attributes & FILE_FLAG_WRITE_THROUGH)
 445                 smb_open_mode |= FILE_SYNC_OPENMODE;
 446
 447         DEBUG(10,("map_share_mode: Mapped desired access 0x%lx, share access 0x%lx, file attributes 0x%lx \
 448 to open_mode 0x%x\n", (unsigned long)*desired_access, (unsigned long)share_access,
 449                 (unsigned long)file_attributes, smb_open_mode ));
 450
 451         return smb_open_mode;
 452 }
 453
 454 /****************************************************************************
 455  Reply to an NT create and X call on a pipe.
 456 ****************************************************************************/
 457
 458 static int nt_open_pipe(char *fname, connection_struct *conn,
 459                         char *inbuf, char *outbuf, int *ppnum)
 460 {
 461         smb_np_struct *p = NULL;
 462
 463         uint16 vuid = SVAL(inbuf, smb_uid);
 464         int i;
 465
 466         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 467
 468         /* See if it is one we want to handle. */
 469
 470         if (lp_disable_spoolss() && strequal(fname, "\\spoolss"))
 471                 return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe));
 472
 473         for( i = 0; known_nt_pipes[i]; i++ )
 474                 if( strequal(fname,known_nt_pipes[i]))
 475                         break;
 476
 477         if ( known_nt_pipes[i] == NULL )
 478                 return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe));
 479
 480         /* Strip \\ off the name. */
 481         fname++;
 482
 483         DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
 484
 485         p = open_rpc_pipe_p(fname, conn, vuid);
 486         if (!p)
 487                 return(ERROR_DOS(ERRSRV,ERRnofids));
 488
 489         *ppnum = p->pnum;
 490
 491         return 0;
 492 }
 493
 494 /****************************************************************************
 495  Reply to an NT create and X call for pipes.
 496 ****************************************************************************/
 497
 498 static int do_ntcreate_pipe_open(connection_struct *conn,
 499                          char *inbuf,char *outbuf,int length,int bufsize)
 500 {
 501         pstring fname;
 502         int ret;
 503         int pnum = -1;
 504         char *p = NULL;
 505
 506         srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
 507
 508         if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0)
 509                 return ret;
 510
 511         /*
 512          * Deal with pipe return.
 513          */
 514
 515         set_message(outbuf,34,0,True);
 516
 517         p = outbuf + smb_vwv2;
 518         p++;
 519         SSVAL(p,0,pnum);
 520         p += 2;
 521         SIVAL(p,0,FILE_WAS_OPENED);
 522         p += 4;
 523         p += 32;
 524         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 525         p += 20;
 526         /* File type. */
 527         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 528         /* Device state. */
 529         SSVAL(p,2, 0x5FF); /* ? */
 530
 531         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 532
 533         return chain_reply(inbuf,outbuf,length,bufsize);
 534 }
 535
 536 /****************************************************************************
 537  Reply to an NT create and X call.
 538 ****************************************************************************/
 539
 540 int reply_ntcreate_and_X(connection_struct *conn,
 541                          char *inbuf,char *outbuf,int length,int bufsize)
 542 {
 543         int result;
 544         pstring fname;
 545         uint32 flags = IVAL(inbuf,smb_ntcreate_Flags);
 546         uint32 desired_access = IVAL(inbuf,smb_ntcreate_DesiredAccess);
 547         uint32 file_attributes = IVAL(inbuf,smb_ntcreate_FileAttributes);
 548         uint32 share_access = IVAL(inbuf,smb_ntcreate_ShareAccess);
 549         uint32 create_disposition = IVAL(inbuf,smb_ntcreate_CreateDisposition);
 550         uint32 create_options = IVAL(inbuf,smb_ntcreate_CreateOptions);
 551         uint16 root_dir_fid = (uint16)IVAL(inbuf,smb_ntcreate_RootDirectoryFid);
 552         SMB_BIG_UINT allocation_size = 0;
 553         int smb_ofun;
 554         int smb_open_mode;
 555         int smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
 556         /* Breakout the oplock request bits so we can set the
 557            reply bits separately. */
 558         int oplock_request = 0;
 559         mode_t unixmode;
 560         int fmode=0,rmode=0;
 561         SMB_OFF_T file_len = 0;
 562         SMB_STRUCT_STAT sbuf;
 563         int smb_action = 0;
 564         BOOL bad_path = False;
 565         files_struct *fsp=NULL;
 566         char *p = NULL;
 567         time_t c_time;
 568         BOOL extended_oplock_granted = False;
 569
 570         START_PROFILE(SMBntcreateX);
 571
 572         DEBUG(10,("reply_ntcreateX: flags = 0x%x, desired_access = 0x%x \
 573 file_attributes = 0x%x, share_access = 0x%x, create_disposition = 0x%x \
 574 create_options = 0x%x root_dir_fid = 0x%x\n", flags, desired_access, file_attributes,
 575                         share_access, create_disposition,
 576                         create_options, root_dir_fid ));
 577
 578         /* If it's an IPC, use the pipe handler. */
 579
 580         if (IS_IPC(conn)) {
 581                 if (lp_nt_pipe_support()) {
 582                         END_PROFILE(SMBntcreateX);
 583                         return do_ntcreate_pipe_open(conn,inbuf,outbuf,length,bufsize);
 584                 } else {
 585                         END_PROFILE(SMBntcreateX);
 586                         return(ERROR_DOS(ERRDOS,ERRnoaccess));
 587                 }
 588         }
 589
 590         if (create_options & FILE_OPEN_BY_FILE_ID) {
 591                 END_PROFILE(SMBntcreateX);
 592                 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
 593         }
 594
 595         /*
 596          * We need to construct the open_and_X ofun value from the
 597          * NT values, as that's what our code is structured to accept.
 598          */
 599
 600         if((smb_ofun = map_create_disposition( create_disposition )) == -1) {
 601                 END_PROFILE(SMBntcreateX);
 602                 return(ERROR_DOS(ERRDOS,ERRnoaccess));
 603         }
 604
 605         /*
 606          * Get the file name.
 607          */
 608
 609         if(root_dir_fid != 0) {
 610                 /*
 611                  * This filename is relative to a directory fid.
 612                  */
 613                 files_struct *dir_fsp = file_fsp(inbuf,smb_ntcreate_RootDirectoryFid);
 614                 size_t dir_name_len;
 615
 616                 if(!dir_fsp) {
 617                         END_PROFILE(SMBntcreateX);
 618                         return(ERROR_DOS(ERRDOS,ERRbadfid));
 619                 }
 620
 621                 if(!dir_fsp->is_directory) {
 622
 623                         srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
 624
 625                         /*
 626                          * Check to see if this is a mac fork of some kind.
 627                          */
 628
 629                         if( strchr_m(fname, ':')) {
 630                                 END_PROFILE(SMBntcreateX);
 631                                 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
 632                         }
 633
 634
 635                         /*
 636                           we need to handle the case when we get a
 637                           relative open relative to a file and the
 638                           pathname is blank - this is a reopen!
 639                           (hint from demyn plantenberg)
 640                         */
 641
 642
 643                         END_PROFILE(SMBntcreateX);
 644                         return(ERROR_DOS(ERRDOS,ERRbadfid));
 645                 }
 646
 647                 /*
 648                  * Copy in the base directory name.
 649                  */
 650
 651                 pstrcpy( fname, dir_fsp->fsp_name );
 652                 dir_name_len = strlen(fname);
 653
 654                 /*
 655                  * Ensure it ends in a '\'.
 656                  */
 657
 658                 if(fname[dir_name_len-1] != '\\' && fname[dir_name_len-1] != '/') {
 659                         pstrcat(fname, "\\");
 660                         dir_name_len++;
 661                 }
 662
 663                 srvstr_pull_buf(inbuf, &fname[dir_name_len], smb_buf(inbuf), sizeof(fname)-dir_name_len, STR_TERMINATE);
 664         } else {
 665                 srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
 666
 667                 /*
 668                  * Check to see if this is a mac fork of some kind.
 669                  */
 670
 671                 if( strchr_m(fname, ':')) {
 672                         END_PROFILE(SMBntcreateX);
 673                         return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
 674                 }
 675         }
 676
 677         /*
 678          * Now contruct the smb_open_mode value from the filename,
 679          * desired access and the share access.
 680          */
 681         RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
 682
 683         if((smb_open_mode = map_share_mode(fname, create_options, &desired_access,
 684                                            share_access,
 685                                            file_attributes)) == -1) {
 686                 END_PROFILE(SMBntcreateX);
 687                 return ERROR_DOS(ERRDOS,ERRnoaccess);
 688         }
 689
 690         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 691         if (oplock_request) {
 692                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
 693         }
 694
 695         /*
 696          * Ordinary file or directory.
 697          */
 698
 699         /*
 700          * Check if POSIX semantics are wanted.
 701          */
 702
 703         set_posix_case_semantics(file_attributes);
 704
 705         unix_convert(fname,conn,0,&bad_path,&sbuf);
 706
 707         unixmode = unix_mode(conn,smb_attr | aARCH, fname);
 708
 709         /*
 710          * If it's a request for a directory open, deal with it separately.
 711          */
 712
 713         if(create_options & FILE_DIRECTORY_FILE) {
 714                 oplock_request = 0;
 715
 716                 /* Can't open a temp directory. IFS kit test. */
 717                 if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
 718                         END_PROFILE(SMBntcreateX);
 719                         return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
 720                 }
 721
 722                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
 723
 724                 restore_case_semantics(file_attributes);
 725
 726                 if(!fsp) {
 727                         set_bad_path_error(errno, bad_path);
 728                         END_PROFILE(SMBntcreateX);
 729                         return(UNIXERROR(ERRDOS,ERRnoaccess));
 730                 }
 731         } else {
 732                 /*
 733                  * Ordinary file case.
 734                  */
 735
 736                 /* NB. We have a potential bug here. If we
 737                  * cause an oplock break to ourselves, then we
 738                  * could end up processing filename related
 739                  * SMB requests whilst we await the oplock
 740                  * break response. As we may have changed the
 741                  * filename case semantics to be POSIX-like,
 742                  * this could mean a filename request could
 743                  * fail when it should succeed. This is a rare
 744                  * condition, but eventually we must arrange
 745                  * to restore the correct case semantics
 746                  * before issuing an oplock break request to
 747                  * our client. JRA.  */
 748
 749                 fsp = open_file_shared1(conn,fname,&sbuf,
 750                                         desired_access,
 751                                         smb_open_mode,
 752                                         smb_ofun,unixmode, oplock_request,
 753                                         &rmode,&smb_action);
 754
 755                 if (!fsp) {
 756                         /* We cheat here. There are two cases we
 757                          * care about. One is a directory rename,
 758                          * where the NT client will attempt to
 759                          * open the source directory for
 760                          * DELETE access. Note that when the
 761                          * NT client does this it does *not*
 762                          * set the directory bit in the
 763                          * request packet. This is translated
 764                          * into a read/write open
 765                          * request. POSIX states that any open
 766                          * for write request on a directory
 767                          * will generate an EISDIR error, so
 768                          * we can catch this here and open a
 769                          * pseudo handle that is flagged as a
 770                          * directory. The second is an open
 771                          * for a permissions read only, which
 772                          * we handle in the open_file_stat case. JRA.
 773                          */
 774
 775                         if(errno == EISDIR) {
 776
 777                                 /*
 778                                  * Fail the open if it was explicitly a non-directory file.
 779                                  */
 780
 781                                 if (create_options & FILE_NON_DIRECTORY_FILE) {
 782                                         restore_case_semantics(file_attributes);
 783                                         SSVAL(outbuf, smb_flg2,
 784                                               SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
 785                                         END_PROFILE(SMBntcreateX);
 786                                         return ERROR_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
 787                                 }
 788
 789                                 oplock_request = 0;
 790                                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
 791
 792                                 if(!fsp) {
 793                                         restore_case_semantics(file_attributes);
 794                                         set_bad_path_error(errno, bad_path);
 795                                         END_PROFILE(SMBntcreateX);
 796                                         return(UNIXERROR(ERRDOS,ERRnoaccess));
 797                                 }
 798                         } else {
 799
 800                                 restore_case_semantics(file_attributes);
 801                                 set_bad_path_error(errno, bad_path);
 802                                 END_PROFILE(SMBntcreateX);
 803                                 return(UNIXERROR(ERRDOS,ERRnoaccess));
 804                         }
 805                 }
 806         }
 807
 808         restore_case_semantics(file_attributes);
 809
 810         file_len = sbuf.st_size;
 811         fmode = dos_mode(conn,fname,&sbuf);
 812         if(fmode == 0)
 813                 fmode = FILE_ATTRIBUTE_NORMAL;
 814         if (!fsp->is_directory && (fmode & aDIR)) {
 815                 close_file(fsp,False);
 816                 END_PROFILE(SMBntcreateX);
 817                 return ERROR_DOS(ERRDOS,ERRnoaccess);
 818         }
 819
 820         /* Save the requested allocation size. */
 821         allocation_size = (SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize);
 822 #ifdef LARGE_SMB_OFF_T
 823         allocation_size |= (((SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize + 4)) << 32);
 824 #endif
 825         if (allocation_size && (allocation_size > (SMB_BIG_UINT)file_len)) {
 826                 fsp->initial_allocation_size = SMB_ROUNDUP(allocation_size,SMB_ROUNDUP_ALLOCATION_SIZE);
 827                 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
 828                         close_file(fsp,False);
 829                         END_PROFILE(SMBntcreateX);
 830                         return ERROR_NT(NT_STATUS_DISK_FULL);
 831                 }
 832         } else {
 833                 fsp->initial_allocation_size = SMB_ROUNDUP(((SMB_BIG_UINT)file_len),SMB_ROUNDUP_ALLOCATION_SIZE);
 834         }
 835
 836         /*
 837          * If the caller set the extended oplock request bit
 838          * and we granted one (by whatever means) - set the
 839          * correct bit for extended oplock reply.
 840          */
 841
 842         if (oplock_request && lp_fake_oplocks(SNUM(conn)))
 843                 extended_oplock_granted = True;
 844
 845         if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
 846                 extended_oplock_granted = True;
 847
 848 #if 0
 849         /* W2K sends back 42 words here ! If we do the same it breaks offline sync. Go figure... ? JRA. */
 850         set_message(outbuf,42,0,True);
 851 #else
 852         set_message(outbuf,34,0,True);
 853 #endif
 854
 855         p = outbuf + smb_vwv2;
 856
 857         /*
 858          * Currently as we don't support level II oplocks we just report
 859          * exclusive & batch here.
 860          */
 861
 862         if (extended_oplock_granted) {
 863                 if (flags & REQUEST_BATCH_OPLOCK) {
 864                         SCVAL(p,0, BATCH_OPLOCK_RETURN);
 865                 } else {
 866                         SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN);
 867                 }
 868         } else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type)) {
 869                 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
 870         } else {
 871                 SCVAL(p,0,NO_OPLOCK_RETURN);
 872         }
 873
 874         p++;
 875         SSVAL(p,0,fsp->fnum);
 876         p += 2;
 877         if ((create_disposition == FILE_SUPERSEDE) && (smb_action == FILE_WAS_OVERWRITTEN))
 878                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 879         else
 880                 SIVAL(p,0,smb_action);
 881         p += 4;
 882
 883         /* Create time. */
 884         c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
 885
 886         if (lp_dos_filetime_resolution(SNUM(conn))) {
 887                 c_time &= ~1;
 888                 sbuf.st_atime &= ~1;
 889                 sbuf.st_mtime &= ~1;
 890                 sbuf.st_mtime &= ~1;
 891         }
 892
 893         put_long_date(p,c_time);
 894         p += 8;
 895         put_long_date(p,sbuf.st_atime); /* access time */
 896         p += 8;
 897         put_long_date(p,sbuf.st_mtime); /* write time */
 898         p += 8;
 899         put_long_date(p,sbuf.st_mtime); /* change time */
 900         p += 8;
 901         SIVAL(p,0,fmode); /* File Attributes. */
 902         p += 4;
 903         SOFF_T(p, 0, get_allocation_size(fsp,&sbuf));
 904         p += 8;
 905         SOFF_T(p,0,file_len);
 906         p += 12;
 907         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 908
 909         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name));
 910
 911         result = chain_reply(inbuf,outbuf,length,bufsize);
 912         END_PROFILE(SMBntcreateX);
 913         return result;
 914 }
 915
 916 /****************************************************************************
 917  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 918 ****************************************************************************/
 919
 920 static int do_nt_transact_create_pipe( connection_struct *conn,
 921                                         char *inbuf, char *outbuf, int length,
 922                                         int bufsize, char **ppsetup, char **ppparams,
 923                                         char **ppdata)
 924 {
 925         pstring fname;
 926         int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount);
 927         char *params = *ppparams;
 928         int ret;
 929         int pnum = -1;
 930         char *p = NULL;
 931
 932         /*
 933          * Ensure minimum number of parameters sent.
 934          */
 935
 936         if(total_parameter_count < 54) {
 937                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)total_parameter_count));
 938                 return ERROR_DOS(ERRDOS,ERRnoaccess);
 939         }
 940
 941         srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
 942
 943         if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0)
 944                 return ret;
 945
 946         /* Realloc the size of parameters and data we will return */
 947         params = Realloc(*ppparams, 69);
 948         if(params == NULL)
 949                 return ERROR_DOS(ERRDOS,ERRnomem);
 950
 951         *ppparams = params;
 952
 953         memset((char *)params,'\0',69);
 954
 955         p = params;
 956         SCVAL(p,0,NO_OPLOCK_RETURN);
 957
 958         p += 2;
 959         SSVAL(p,0,pnum);
 960         p += 2;
 961         SIVAL(p,0,FILE_WAS_OPENED);
 962         p += 8;
 963
 964         p += 32;
 965         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 966         p += 20;
 967         /* File type. */
 968         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 969         /* Device state. */
 970         SSVAL(p,2, 0x5FF); /* ? */
 971
 972         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 973
 974         /* Send the required number of replies */
 975         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 69, *ppdata, 0);
 976
 977         return -1;
 978 }
 979
 980 /****************************************************************************
 981  Internal fn to set security descriptors.
 982 ****************************************************************************/
 983
 984 static NTSTATUS set_sd(files_struct *fsp, char *data, uint32 sd_len, uint32 security_info_sent)
 985 {
 986         prs_struct pd;
 987         SEC_DESC *psd = NULL;
 988         TALLOC_CTX *mem_ctx;
 989         BOOL ret;
 990
 991         if (sd_len == 0) {
 992                 return NT_STATUS_OK;
 993         }
 994
 995         /*
 996          * Init the parse struct we will unmarshall from.
 997          */
 998
 999         if ((mem_ctx = talloc_init("set_sd")) == NULL) {
1000                 DEBUG(0,("set_sd: talloc_init failed.\n"));
1001                 return NT_STATUS_NO_MEMORY;
1002         }
1003
1004         prs_init(&pd, 0, mem_ctx, UNMARSHALL);
1005
1006         /*
1007          * Setup the prs_struct to point at the memory we just
1008          * allocated.
1009          */
1010
1011         prs_give_memory( &pd, data, sd_len, False);
1012
1013         /*
1014          * Finally, unmarshall from the data buffer.
1015          */
1016
1017         if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1018                 DEBUG(0,("set_sd: Error in unmarshalling security descriptor.\n"));
1019                 /*
1020                  * Return access denied for want of a better error message..
1021                  */
1022                 talloc_destroy(mem_ctx);
1023                 return NT_STATUS_NO_MEMORY;
1024         }
1025
1026         if (psd->off_owner_sid==0)
1027                 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
1028         if (psd->off_grp_sid==0)
1029                 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
1030         if (psd->off_sacl==0)
1031                 security_info_sent &= ~SACL_SECURITY_INFORMATION;
1032         if (psd->off_dacl==0)
1033                 security_info_sent &= ~DACL_SECURITY_INFORMATION;
1034
1035         ret = fsp->conn->vfs_ops.fset_nt_acl( fsp, fsp->fd, security_info_sent, psd);
1036
1037         if (!ret) {
1038                 talloc_destroy(mem_ctx);
1039                 return NT_STATUS_ACCESS_DENIED;
1040         }
1041
1042         talloc_destroy(mem_ctx);
1043
1044         return NT_STATUS_OK;
1045 }
1046
1047 /****************************************************************************
1048  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1049 ****************************************************************************/
1050
1051 static int call_nt_transact_create(connection_struct *conn,
1052                                         char *inbuf, char *outbuf, int length,
1053                                         int bufsize, char **ppsetup, char **ppparams,
1054                                         char **ppdata)
1055 {
1056         pstring fname;
1057         char *params = *ppparams;
1058         char *data = *ppdata;
1059         int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount);
1060         /* Breakout the oplock request bits so we can set the reply bits separately. */
1061         int oplock_request = 0;
1062         mode_t unixmode;
1063         int fmode=0,rmode=0;
1064         SMB_OFF_T file_len = 0;
1065         SMB_STRUCT_STAT sbuf;
1066         int smb_action = 0;
1067         BOOL bad_path = False;
1068         files_struct *fsp = NULL;
1069         char *p = NULL;
1070         BOOL extended_oplock_granted = False;
1071         uint32 flags;
1072         uint32 desired_access;
1073         uint32 file_attributes;
1074         uint32 share_access;
1075         uint32 create_disposition;
1076         uint32 create_options;
1077         uint32 sd_len;
1078         uint16 root_dir_fid;
1079         SMB_BIG_UINT allocation_size = 0;
1080         int smb_ofun;
1081         int smb_open_mode;
1082         int smb_attr;
1083         time_t c_time;
1084         NTSTATUS nt_status;
1085
1086         DEBUG(5,("call_nt_transact_create\n"));
1087
1088         /*
1089          * If it's an IPC, use the pipe handler.
1090          */
1091
1092         if (IS_IPC(conn)) {
1093                 if (lp_nt_pipe_support())
1094                         return do_nt_transact_create_pipe(conn, inbuf, outbuf, length,
1095                                         bufsize, ppsetup, ppparams, ppdata);
1096                 else
1097                         return ERROR_DOS(ERRDOS,ERRnoaccess);
1098         }
1099
1100         /*
1101          * Ensure minimum number of parameters sent.
1102          */
1103
1104         if(total_parameter_count < 54) {
1105                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)total_parameter_count));
1106                 return ERROR_DOS(ERRDOS,ERRnoaccess);
1107         }
1108
1109         flags = IVAL(params,0);
1110         desired_access = IVAL(params,8);
1111         file_attributes = IVAL(params,20);
1112         share_access = IVAL(params,24);
1113         create_disposition = IVAL(params,28);
1114         create_options = IVAL(params,32);
1115         sd_len = IVAL(params,36);
1116         root_dir_fid = (uint16)IVAL(params,4);
1117         smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
1118
1119         if (create_options & FILE_OPEN_BY_FILE_ID) {
1120                 END_PROFILE(SMBntcreateX);
1121                 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1122         }
1123
1124         /*
1125          * We need to construct the open_and_X ofun value from the
1126          * NT values, as that's what our code is structured to accept.
1127          */
1128
1129         if((smb_ofun = map_create_disposition( create_disposition )) == -1)
1130                 return ERROR_DOS(ERRDOS,ERRbadmem);
1131
1132         /*
1133          * Get the file name.
1134          */
1135
1136         if(root_dir_fid != 0) {
1137                 /*
1138                  * This filename is relative to a directory fid.
1139                  */
1140
1141                 files_struct *dir_fsp = file_fsp(params,4);
1142                 size_t dir_name_len;
1143
1144                 if(!dir_fsp)
1145                         return ERROR_DOS(ERRDOS,ERRbadfid);
1146
1147                 if(!dir_fsp->is_directory) {
1148
1149                         srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
1150
1151                         /*
1152                          * Check to see if this is a mac fork of some kind.
1153                          */
1154
1155                         if( strchr_m(fname, ':'))
1156                                 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1157
1158                         return ERROR_DOS(ERRDOS,ERRbadfid);
1159                 }
1160
1161                 /*
1162                  * Copy in the base directory name.
1163                  */
1164
1165                 pstrcpy( fname, dir_fsp->fsp_name );
1166                 dir_name_len = strlen(fname);
1167
1168                 /*
1169                  * Ensure it ends in a '\'.
1170                  */
1171
1172                 if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) {
1173                         pstrcat(fname, "\\");
1174                         dir_name_len++;
1175                 }
1176
1177                 srvstr_pull(inbuf, &fname[dir_name_len], params+53, sizeof(fname)-dir_name_len,
1178                                 total_parameter_count-53, STR_TERMINATE);
1179         } else {
1180                 srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
1181
1182                 /*
1183                  * Check to see if this is a mac fork of some kind.
1184                  */
1185
1186                 if( strchr_m(fname, ':'))
1187                         return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1188         }
1189
1190         /*
1191          * Now contruct the smb_open_mode value from the desired access
1192          * and the share access.
1193          */
1194
1195         if((smb_open_mode = map_share_mode( fname, create_options, &desired_access,
1196                                                 share_access, file_attributes)) == -1)
1197                 return ERROR_DOS(ERRDOS,ERRnoaccess);
1198
1199         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1200         oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
1201
1202         /*
1203          * Check if POSIX semantics are wanted.
1204          */
1205
1206         set_posix_case_semantics(file_attributes);
1207
1208         RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
1209
1210         unix_convert(fname,conn,0,&bad_path,&sbuf);
1211
1212         unixmode = unix_mode(conn,smb_attr | aARCH, fname);
1213
1214         /*
1215          * If it's a request for a directory open, deal with it separately.
1216          */
1217
1218         if(create_options & FILE_DIRECTORY_FILE) {
1219
1220                 /* Can't open a temp directory. IFS kit test. */
1221                 if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
1222                         END_PROFILE(SMBntcreateX);
1223                         return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1224                 }
1225
1226                 oplock_request = 0;
1227
1228                 /*
1229                  * We will get a create directory here if the Win32
1230                  * app specified a security descriptor in the
1231                  * CreateDirectory() call.
1232                  */
1233
1234                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
1235
1236                 if(!fsp) {
1237                         restore_case_semantics(file_attributes);
1238                         set_bad_path_error(errno, bad_path);
1239                         return(UNIXERROR(ERRDOS,ERRnoaccess));
1240                 }
1241
1242         } else {
1243
1244                 /*
1245                  * Ordinary file case.
1246                  */
1247
1248                 fsp = open_file_shared1(conn,fname,&sbuf,desired_access,
1249                                                 smb_open_mode,smb_ofun,unixmode,
1250                                                 oplock_request,&rmode,&smb_action);
1251
1252                 if (!fsp) {
1253
1254                         if(errno == EISDIR) {
1255
1256                                 /*
1257                                  * Fail the open if it was explicitly a non-directory file.
1258                                  */
1259
1260                                 if (create_options & FILE_NON_DIRECTORY_FILE) {
1261                                         restore_case_semantics(file_attributes);
1262                                         SSVAL(outbuf, smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
1263                                         return ERROR_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
1264                                 }
1265
1266                                 oplock_request = 0;
1267                                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
1268
1269                                 if(!fsp) {
1270                                         restore_case_semantics(file_attributes);
1271                                         set_bad_path_error(errno, bad_path);
1272                                         return(UNIXERROR(ERRDOS,ERRnoaccess));
1273                                 }
1274                         } else {
1275                                 restore_case_semantics(file_attributes);
1276                                 set_bad_path_error(errno, bad_path);
1277                                 return(UNIXERROR(ERRDOS,ERRnoaccess));
1278                         }
1279                 }
1280
1281                 file_len = sbuf.st_size;
1282                 fmode = dos_mode(conn,fname,&sbuf);
1283                 if(fmode == 0)
1284                         fmode = FILE_ATTRIBUTE_NORMAL;
1285
1286                 if (fmode & aDIR) {
1287                         close_file(fsp,False);
1288                         restore_case_semantics(file_attributes);
1289                         return ERROR_DOS(ERRDOS,ERRnoaccess);
1290                 }
1291
1292                 /*
1293                  * If the caller set the extended oplock request bit
1294                  * and we granted one (by whatever means) - set the
1295                  * correct bit for extended oplock reply.
1296                  */
1297
1298                 if (oplock_request && lp_fake_oplocks(SNUM(conn)))
1299                         extended_oplock_granted = True;
1300
1301                 if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
1302                         extended_oplock_granted = True;
1303         }
1304
1305         /*
1306          * Now try and apply the desired SD.
1307          */
1308
1309         if (sd_len && !NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, sd_len, ALL_SECURITY_INFORMATION))) {
1310                 close_file(fsp,False);
1311                 restore_case_semantics(file_attributes);
1312                 return ERROR_NT(nt_status);
1313         }
1314
1315         restore_case_semantics(file_attributes);
1316
1317         /* Save the requested allocation size. */
1318         allocation_size = (SMB_BIG_UINT)IVAL(params,12);
1319 #ifdef LARGE_SMB_OFF_T
1320         allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
1321 #endif
1322         if (allocation_size && (allocation_size > file_len)) {
1323                 fsp->initial_allocation_size = SMB_ROUNDUP(allocation_size,SMB_ROUNDUP_ALLOCATION_SIZE);
1324                 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1325                         close_file(fsp,False);
1326                         END_PROFILE(SMBntcreateX);
1327                         return ERROR_NT(NT_STATUS_DISK_FULL);
1328                 }
1329         } else {
1330                 fsp->initial_allocation_size = SMB_ROUNDUP(((SMB_BIG_UINT)file_len),SMB_ROUNDUP_ALLOCATION_SIZE);
1331         }
1332
1333         /* Realloc the size of parameters and data we will return */
1334         params = Realloc(*ppparams, 69);
1335         if(params == NULL)
1336                 return ERROR_DOS(ERRDOS,ERRnomem);
1337
1338         *ppparams = params;
1339
1340         memset((char *)params,'\0',69);
1341
1342         p = params;
1343         if (extended_oplock_granted)
1344                 SCVAL(p,0, BATCH_OPLOCK_RETURN);
1345         else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type))
1346                 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
1347         else
1348                 SCVAL(p,0,NO_OPLOCK_RETURN);
1349
1350         p += 2;
1351         SSVAL(p,0,fsp->fnum);
1352         p += 2;
1353         if ((create_disposition == FILE_SUPERSEDE) && (smb_action == FILE_WAS_OVERWRITTEN))
1354                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1355         else
1356                 SIVAL(p,0,smb_action);
1357         p += 8;
1358
1359         /* Create time. */
1360         c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
1361
1362         if (lp_dos_filetime_resolution(SNUM(conn))) {
1363                 c_time &= ~1;
1364                 sbuf.st_atime &= ~1;
1365                 sbuf.st_mtime &= ~1;
1366                 sbuf.st_mtime &= ~1;
1367         }
1368
1369         put_long_date(p,c_time);
1370         p += 8;
1371         put_long_date(p,sbuf.st_atime); /* access time */
1372         p += 8;
1373         put_long_date(p,sbuf.st_mtime); /* write time */
1374         p += 8;
1375         put_long_date(p,sbuf.st_mtime); /* change time */
1376         p += 8;
1377         SIVAL(p,0,fmode); /* File Attributes. */
1378         p += 4;
1379         SOFF_T(p, 0, get_allocation_size(fsp,&sbuf));
1380         p += 8;
1381         SOFF_T(p,0,file_len);
1382
1383         DEBUG(5,("call_nt_transact_create: open name = %s\n", fname));
1384
1385         /* Send the required number of replies */
1386         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 69, *ppdata, 0);
1387
1388         return -1;
1389 }
1390
1391 /****************************************************************************
1392  Reply to a NT CANCEL request.
1393 ****************************************************************************/
1394
1395 int reply_ntcancel(connection_struct *conn,
1396                    char *inbuf,char *outbuf,int length,int bufsize)
1397 {
1398         /*
1399          * Go through and cancel any pending change notifies.
1400          */
1401
1402         int mid = SVAL(inbuf,smb_mid);
1403         START_PROFILE(SMBntcancel);
1404         remove_pending_change_notify_requests_by_mid(mid);
1405         remove_pending_lock_requests_by_mid(mid);
1406
1407         DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", mid));
1408
1409         END_PROFILE(SMBntcancel);
1410         return(-1);
1411 }
1412
1413 /****************************************************************************
1414  Reply to an unsolicited SMBNTtranss - just ignore it!
1415 ****************************************************************************/
1416
1417 int reply_nttranss(connection_struct *conn,
1418                    char *inbuf,char *outbuf,int length,int bufsize)
1419 {
1420         START_PROFILE(SMBnttranss);
1421         DEBUG(4,("Ignoring nttranss of length %d\n",length));
1422         END_PROFILE(SMBnttranss);
1423         return(-1);
1424 }
1425
1426 /****************************************************************************
1427  Reply to a notify change - queue the request and
1428  don't allow a directory to be opened.
1429 ****************************************************************************/
1430
1431 static int call_nt_transact_notify_change(connection_struct *conn,
1432                                    char *inbuf, char *outbuf, int length,
1433                                    int bufsize,
1434                                    char **ppsetup,
1435                                    char **ppparams, char **ppdata)
1436 {
1437         char *setup = *ppsetup;
1438         files_struct *fsp;
1439         uint32 flags;
1440
1441         fsp = file_fsp(setup,4);
1442         flags = IVAL(setup, 0);
1443
1444         DEBUG(3,("call_nt_transact_notify_change\n"));
1445
1446         if(!fsp)
1447                 return ERROR_DOS(ERRDOS,ERRbadfid);
1448
1449         if((!fsp->is_directory) || (conn != fsp->conn))
1450                 return ERROR_DOS(ERRDOS,ERRbadfid);
1451
1452         if (!change_notify_set(inbuf, fsp, conn, flags))
1453                 return(UNIXERROR(ERRDOS,ERRbadfid));
1454
1455         DEBUG(3,("call_nt_transact_notify_change: notify change called on directory \
1456 name = %s\n", fsp->fsp_name ));
1457
1458         return -1;
1459 }
1460
1461 /****************************************************************************
1462  Reply to an NT transact rename command.
1463 ****************************************************************************/
1464
1465 static int call_nt_transact_rename(connection_struct *conn,
1466                                    char *inbuf, char *outbuf, int length,
1467                                    int bufsize,
1468                                    char **ppsetup, char **ppparams, char **ppdata)
1469 {
1470         char *params = *ppparams;
1471         pstring new_name;
1472         files_struct *fsp = file_fsp(params, 0);
1473         BOOL replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False;
1474         NTSTATUS status;
1475
1476         CHECK_FSP(fsp, conn);
1477         srvstr_pull(inbuf, new_name, params+4, sizeof(new_name), -1, STR_TERMINATE);
1478
1479         status = rename_internals(conn, fsp->fsp_name,
1480                                   new_name, replace_if_exists);
1481         if (!NT_STATUS_IS_OK(status))
1482                 return ERROR_NT(status);
1483
1484         /*
1485          * Rename was successful.
1486          */
1487         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1488
1489         DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
1490                  fsp->fsp_name, new_name));
1491
1492         /*
1493          * Win2k needs a changenotify request response before it will
1494          * update after a rename..
1495          */
1496
1497         process_pending_change_notify_queue((time_t)0);
1498
1499         return -1;
1500 }
1501
1502 /******************************************************************************
1503  Fake up a completely empty SD.
1504 *******************************************************************************/
1505
1506 static size_t get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1507 {
1508         extern DOM_SID global_sid_World;
1509         size_t sd_size;
1510
1511         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1512         if(!*ppsd) {
1513                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1514                 sd_size = 0;
1515         }
1516
1517         return sd_size;
1518 }
1519
1520 /****************************************************************************
1521  Reply to query a security descriptor - currently this is not implemented (it
1522  is planned to be though). Right now it just returns the same thing NT would
1523  when queried on a FAT filesystem. JRA.
1524 ****************************************************************************/
1525
1526 static int call_nt_transact_query_security_desc(connection_struct *conn,
1527                                                 char *inbuf, char *outbuf,
1528                                                 int length, int bufsize,
1529                                                 char **ppsetup, char **ppparams, char **ppdata)
1530 {
1531         uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
1532         char *params = *ppparams;
1533         char *data = *ppdata;
1534         prs_struct pd;
1535         SEC_DESC *psd = NULL;
1536         size_t sd_size;
1537         TALLOC_CTX *mem_ctx;
1538
1539         files_struct *fsp = file_fsp(params,0);
1540
1541         if(!fsp)
1542                 return ERROR_DOS(ERRDOS,ERRbadfid);
1543
1544         DEBUG(3,("call_nt_transact_query_security_desc: file = %s\n", fsp->fsp_name ));
1545
1546         params = Realloc(*ppparams, 4);
1547         if(params == NULL)
1548                 return ERROR_DOS(ERRDOS,ERRnomem);
1549
1550         *ppparams = params;
1551
1552         if ((mem_ctx = talloc_init("call_nt_transact_query_security_desc")) == NULL) {
1553                 DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n"));
1554                 return ERROR_DOS(ERRDOS,ERRnomem);
1555         }
1556
1557         /*
1558          * Get the permissions to return.
1559          */
1560
1561         if (!lp_nt_acl_support(SNUM(conn)))
1562                 sd_size = get_null_nt_acl(mem_ctx, &psd);
1563         else
1564                 sd_size = conn->vfs_ops.fget_nt_acl(fsp, fsp->fd, &psd);
1565
1566         if (sd_size == 0) {
1567                 talloc_destroy(mem_ctx);
1568                 return(UNIXERROR(ERRDOS,ERRnoaccess));
1569         }
1570
1571         DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %d.\n",(int)sd_size));
1572
1573         SIVAL(params,0,(uint32)sd_size);
1574
1575         if(max_data_count < sd_size) {
1576
1577                 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_BUFFER_TOO_SMALL,
1578                         params, 4, *ppdata, 0);
1579                 talloc_destroy(mem_ctx);
1580                 return -1;
1581         }
1582
1583         /*
1584          * Allocate the data we will point this at.
1585          */
1586
1587         data = Realloc(*ppdata, sd_size);
1588         if(data == NULL) {
1589                 talloc_destroy(mem_ctx);
1590                 return ERROR_DOS(ERRDOS,ERRnomem);
1591         }
1592
1593         *ppdata = data;
1594
1595         memset(data, '\0', sd_size);
1596
1597         /*
1598          * Init the parse struct we will marshall into.
1599          */
1600
1601         prs_init(&pd, 0, mem_ctx, MARSHALL);
1602
1603         /*
1604          * Setup the prs_struct to point at the memory we just
1605          * allocated.
1606          */
1607
1608         prs_give_memory( &pd, data, (uint32)sd_size, False);
1609
1610         /*
1611          * Finally, linearize into the outgoing buffer.
1612          */
1613
1614         if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1615                 DEBUG(0,("call_nt_transact_query_security_desc: Error in marshalling \
1616 security descriptor.\n"));
1617                 /*
1618                  * Return access denied for want of a better error message..
1619                  */
1620                 talloc_destroy(mem_ctx);
1621                 return(UNIXERROR(ERRDOS,ERRnoaccess));
1622         }
1623
1624         /*
1625          * Now we can delete the security descriptor.
1626          */
1627
1628         talloc_destroy(mem_ctx);
1629
1630         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 4, data, (int)sd_size);
1631         return -1;
1632 }
1633
1634 /****************************************************************************
1635  Reply to set a security descriptor. Map to UNIX perms.
1636 ****************************************************************************/
1637
1638 static int call_nt_transact_set_security_desc(connection_struct *conn,
1639                                                                         char *inbuf, char *outbuf, int length,
1640                                                                         int bufsize, char **ppsetup,
1641                                                                         char **ppparams, char **ppdata)
1642 {
1643         uint32 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
1644         char *params= *ppparams;
1645         char *data = *ppdata;
1646         uint32 total_data_count = (uint32)IVAL(inbuf, smb_nts_TotalDataCount);
1647         files_struct *fsp = NULL;
1648         uint32 security_info_sent = 0;
1649         NTSTATUS nt_status;
1650
1651         if(total_parameter_count < 8)
1652                 return ERROR_DOS(ERRDOS,ERRbadfunc);
1653
1654         if((fsp = file_fsp(params,0)) == NULL)
1655                 return ERROR_DOS(ERRDOS,ERRbadfid);
1656
1657         if(!lp_nt_acl_support(SNUM(conn)))
1658                 goto done;
1659
1660         security_info_sent = IVAL(params,4);
1661
1662         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1663                 (unsigned int)security_info_sent ));
1664
1665         if (total_data_count == 0)
1666                 return ERROR_DOS(ERRDOS, ERRnoaccess);
1667
1668         if (!NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, total_data_count, security_info_sent)))
1669                 return ERROR_NT(nt_status);
1670
1671   done:
1672
1673         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1674         return -1;
1675 }
1676
1677 /****************************************************************************
1678  Reply to NT IOCTL
1679 ****************************************************************************/
1680 static int call_nt_transact_ioctl(connection_struct *conn,
1681                                   char *inbuf, char *outbuf, int length,
1682                                   int bufsize,
1683                                   char **ppsetup, int setup_count,
1684                                   char **ppparams, int parameter_count,
1685                                   char **ppdata, int data_count)
1686 {
1687         unsigned fnum, control;
1688         static BOOL logged_message;
1689
1690         if (setup_count != 8) {
1691                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1692                 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1693         }
1694
1695         fnum = SVAL(*ppsetup, 4);
1696         control = IVAL(*ppsetup, 0);
1697
1698         DEBUG(6,("call_nt_transact_ioctl: fnum=%d control=0x%x\n",
1699                  fnum, control));
1700
1701         switch (control) {
1702         case NTIOCTL_SET_SPARSE:
1703                 /* pretend this succeeded - tho strictly we should
1704                    mark the file sparse (if the local fs supports it)
1705                    so we can know if we need to pre-allocate or not */
1706                 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1707                 return -1;
1708
1709         default:
1710                 if (!logged_message) {
1711                         logged_message = True; /* Only print this once... */
1712                         DEBUG(3,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
1713                                  control));
1714                 }
1715         }
1716
1717         return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1718 }
1719
1720 /****************************************************************************
1721  Reply to a SMBNTtrans.
1722 ****************************************************************************/
1723
1724 int reply_nttrans(connection_struct *conn,
1725                         char *inbuf,char *outbuf,int length,int bufsize)
1726 {
1727         int  outsize = 0;
1728 #if 0 /* Not used. */
1729         uint16 max_setup_count = CVAL(inbuf, smb_nt_MaxSetupCount);
1730         uint32 max_parameter_count = IVAL(inbuf, smb_nt_MaxParameterCount);
1731         uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
1732 #endif /* Not used. */
1733         uint32 total_parameter_count = IVAL(inbuf, smb_nt_TotalParameterCount);
1734         uint32 total_data_count = IVAL(inbuf, smb_nt_TotalDataCount);
1735         uint32 parameter_count = IVAL(inbuf,smb_nt_ParameterCount);
1736         uint32 parameter_offset = IVAL(inbuf,smb_nt_ParameterOffset);
1737         uint32 data_count = IVAL(inbuf,smb_nt_DataCount);
1738         uint32 data_offset = IVAL(inbuf,smb_nt_DataOffset);
1739         uint16 setup_count = 2*CVAL(inbuf,smb_nt_SetupCount); /* setup count is in *words* */
1740         uint16 function_code = SVAL( inbuf, smb_nt_Function);
1741         char *params = NULL, *data = NULL, *setup = NULL;
1742         uint32 num_params_sofar, num_data_sofar;
1743         START_PROFILE(SMBnttrans);
1744
1745         if(global_oplock_break &&
1746                         ((function_code == NT_TRANSACT_CREATE) ||
1747                          (function_code == NT_TRANSACT_RENAME))) {
1748                 /*
1749                  * Queue this open message as we are the process of an oplock break.
1750                  */
1751
1752                 DEBUG(2,("reply_nttrans: queueing message code 0x%x \
1753 due to being in oplock break state.\n", (unsigned int)function_code ));
1754
1755                 push_oplock_pending_smb_message( inbuf, length);
1756                 END_PROFILE(SMBnttrans);
1757                 return -1;
1758         }
1759
1760         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
1761                 END_PROFILE(SMBnttrans);
1762                 return ERROR_DOS(ERRSRV,ERRaccess);
1763         }
1764
1765         outsize = set_message(outbuf,0,0,True);
1766
1767         /*
1768          * All nttrans messages we handle have smb_wct == 19 + setup_count.
1769          * Ensure this is so as a sanity check.
1770          */
1771
1772         if(CVAL(inbuf, smb_wct) != 19 + (setup_count/2)) {
1773                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
1774                         CVAL(inbuf, smb_wct), 19 + (setup_count/2)));
1775                 goto bad_param;
1776         }
1777
1778         /* Allocate the space for the setup, the maximum needed parameters and data */
1779
1780         if(setup_count > 0)
1781                 setup = (char *)malloc(setup_count);
1782         if (total_parameter_count > 0)
1783                 params = (char *)malloc(total_parameter_count);
1784         if (total_data_count > 0)
1785                 data = (char *)malloc(total_data_count);
1786
1787         if ((total_parameter_count && !params)  || (total_data_count && !data) ||
1788                                 (setup_count && !setup)) {
1789                 SAFE_FREE(setup);
1790                 SAFE_FREE(params);
1791                 SAFE_FREE(data);
1792                 DEBUG(0,("reply_nttrans : Out of memory\n"));
1793                 END_PROFILE(SMBnttrans);
1794                 return ERROR_DOS(ERRDOS,ERRnomem);
1795         }
1796
1797         /* Copy the param and data bytes sent with this request into the params buffer */
1798         num_params_sofar = parameter_count;
1799         num_data_sofar = data_count;
1800
1801         if (parameter_count > total_parameter_count || data_count > total_data_count)
1802                 goto bad_param;
1803
1804         if(setup) {
1805                 DEBUG(10,("reply_nttrans: setup_count = %d\n", setup_count));
1806                 if ((smb_nt_SetupStart + setup_count < smb_nt_SetupStart) ||
1807                                 (smb_nt_SetupStart + setup_count < setup_count))
1808                         goto bad_param;
1809                 if (smb_nt_SetupStart + setup_count > length)
1810                         goto bad_param;
1811
1812                 memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count);
1813                 dump_data(10, setup, setup_count);
1814         }
1815         if(params) {
1816                 DEBUG(10,("reply_nttrans: parameter_count = %d\n", parameter_count));
1817                 if ((parameter_offset + parameter_count < parameter_offset) ||
1818                                 (parameter_offset + parameter_count < parameter_count))
1819                         goto bad_param;
1820                 if (smb_base(inbuf) + parameter_offset + parameter_count > inbuf + length)
1821                         goto bad_param;
1822
1823                 memcpy( params, smb_base(inbuf) + parameter_offset, parameter_count);
1824                 dump_data(10, params, parameter_count);
1825         }
1826         if(data) {
1827                 DEBUG(10,("reply_nttrans: data_count = %d\n",data_count));
1828                 if ((data_offset + data_count < data_offset) || (data_offset + data_count < data_count))
1829                         goto bad_param;
1830                 if (smb_base(inbuf) + data_offset + data_count > inbuf + length)
1831                         goto bad_param;
1832
1833                 memcpy( data, smb_base(inbuf) + data_offset, data_count);
1834                 dump_data(10, data, data_count);
1835         }
1836
1837         if(num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
1838                 /* We need to send an interim response then receive the rest
1839                         of the parameter/data bytes */
1840                 outsize = set_message(outbuf,0,0,True);
1841                 if (!send_smb(smbd_server_fd(),outbuf))
1842                         exit_server("reply_nttrans: send_smb failed.");
1843
1844                 while( num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
1845                         BOOL ret;
1846                         uint32 parameter_displacement;
1847                         uint32 data_displacement;
1848
1849                         ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT);
1850
1851                         if((ret && (CVAL(inbuf, smb_com) != SMBnttranss)) || !ret) {
1852                                 outsize = set_message(outbuf,0,0,True);
1853                                 if(ret) {
1854                                         DEBUG(0,("reply_nttrans: Invalid secondary nttrans packet\n"));
1855                                 } else {
1856                                         DEBUG(0,("reply_nttrans: %s in getting secondary nttrans response.\n",
1857                                                 (smb_read_error == READ_ERROR) ? "error" : "timeout" ));
1858                                 }
1859                                 goto bad_param;
1860                         }
1861
1862                         /* Revise total_params and total_data in case they have changed downwards */
1863                         if (IVAL(inbuf, smb_nts_TotalParameterCount) < total_parameter_count)
1864                                 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
1865                         if (IVAL(inbuf, smb_nts_TotalDataCount) < total_data_count)
1866                                 total_data_count = IVAL(inbuf, smb_nts_TotalDataCount);
1867
1868                         parameter_count = IVAL(inbuf,smb_nts_ParameterCount);
1869                         parameter_offset = IVAL(inbuf, smb_nts_ParameterOffset);
1870                         parameter_displacement = IVAL(inbuf, smb_nts_ParameterDisplacement);
1871                         num_params_sofar += parameter_count;
1872
1873                         data_count = IVAL(inbuf, smb_nts_DataCount);
1874                         data_displacement = IVAL(inbuf, smb_nts_DataDisplacement);
1875                         data_offset = IVAL(inbuf, smb_nts_DataOffset);
1876                         num_data_sofar += data_count;
1877
1878                         if (num_params_sofar > total_parameter_count || num_data_sofar > total_data_count) {
1879                                 DEBUG(0,("reply_nttrans2: data overflow in secondary nttrans packet"));
1880                                 goto bad_param;
1881                         }
1882
1883                         if (parameter_count) {
1884                                 if (parameter_displacement + parameter_count >= total_parameter_count)
1885                                         goto bad_param;
1886                                 if ((parameter_displacement + parameter_count < parameter_displacement) ||
1887                                                 (parameter_displacement + parameter_count < parameter_count))
1888                                         goto bad_param;
1889                                 if (smb_base(inbuf) + parameter_offset + parameter_count >= inbuf + bufsize)
1890                                         goto bad_param;
1891                                 if (parameter_displacement + params < params)
1892                                         goto bad_param;
1893
1894                                 memcpy( &params[parameter_displacement], smb_base(inbuf) + parameter_offset, parameter_count);
1895                         }
1896
1897                         if (data_count) {
1898                                 if (data_displacement + data_count >= total_data_count)
1899                                         goto bad_param;
1900                                 if ((data_displacement + data_count < data_displacement) ||
1901                                                 (data_displacement + data_count < data_count))
1902                                         goto bad_param;
1903                                 if (smb_base(inbuf) + data_offset + data_count >= inbuf + bufsize)
1904                                         goto bad_param;
1905                                 if (data_displacement + data < data)
1906                                         goto bad_param;
1907
1908                                 memcpy( &data[data_displacement], smb_base(inbuf)+ data_offset, data_count);
1909                         }
1910                 }
1911         }
1912
1913         if (Protocol >= PROTOCOL_NT1)
1914                 SSVAL(outbuf,smb_flg2,SVAL(outbuf,smb_flg2) | FLAGS2_IS_LONG_NAME);
1915
1916         /* Now we must call the relevant NT_TRANS function */
1917         switch(function_code) {
1918                 case NT_TRANSACT_CREATE:
1919                         START_PROFILE_NESTED(NT_transact_create);
1920                         outsize = call_nt_transact_create(conn, inbuf, outbuf,
1921                                         length, bufsize,
1922                                         &setup, &params, &data);
1923                         END_PROFILE_NESTED(NT_transact_create);
1924                         break;
1925                 case NT_TRANSACT_IOCTL:
1926                         START_PROFILE_NESTED(NT_transact_ioctl);
1927                         outsize = call_nt_transact_ioctl(conn, inbuf, outbuf,
1928                                                          length, bufsize,
1929                                                          &setup, setup_count,
1930                                                          &params, parameter_count,
1931                                                          &data, data_count);
1932                         END_PROFILE_NESTED(NT_transact_ioctl);
1933                         break;
1934                 case NT_TRANSACT_SET_SECURITY_DESC:
1935                         START_PROFILE_NESTED(NT_transact_set_security_desc);
1936                         outsize = call_nt_transact_set_security_desc(conn, inbuf, outbuf,
1937                                         length, bufsize,
1938                                         &setup, &params, &data);
1939                         END_PROFILE_NESTED(NT_transact_set_security_desc);
1940                         break;
1941                 case NT_TRANSACT_NOTIFY_CHANGE:
1942                         START_PROFILE_NESTED(NT_transact_notify_change);
1943                         outsize = call_nt_transact_notify_change(conn, inbuf, outbuf,
1944                                         length, bufsize,
1945                                         &setup, &params, &data);
1946                         END_PROFILE_NESTED(NT_transact_notify_change);
1947                         break;
1948                 case NT_TRANSACT_RENAME:
1949                         START_PROFILE_NESTED(NT_transact_rename);
1950                         outsize = call_nt_transact_rename(conn, inbuf, outbuf,
1951                                         length, bufsize,
1952                                         &setup, &params, &data);
1953                         END_PROFILE_NESTED(NT_transact_rename);
1954                         break;
1955
1956                 case NT_TRANSACT_QUERY_SECURITY_DESC:
1957                         START_PROFILE_NESTED(NT_transact_query_security_desc);
1958                         outsize = call_nt_transact_query_security_desc(conn, inbuf, outbuf,
1959                                         length, bufsize,
1960                                         &setup, &params, &data);
1961                         END_PROFILE_NESTED(NT_transact_query_security_desc);
1962                         break;
1963                 default:
1964                         /* Error in request */
1965                         DEBUG(0,("reply_nttrans: Unknown request %d in nttrans call\n", function_code));
1966                         SAFE_FREE(setup);
1967                         SAFE_FREE(params);
1968                         SAFE_FREE(data);
1969                         END_PROFILE(SMBnttrans);
1970                         return ERROR_DOS(ERRSRV,ERRerror);
1971         }
1972
1973         /* As we do not know how many data packets will need to be
1974                 returned here the various call_nt_transact_xxxx calls
1975                 must send their own. Thus a call_nt_transact_xxxx routine only
1976                 returns a value other than -1 when it wants to send
1977                 an error packet.
1978         */
1979
1980         SAFE_FREE(setup);
1981         SAFE_FREE(params);
1982         SAFE_FREE(data);
1983         END_PROFILE(SMBnttrans);
1984         return outsize; /* If a correct response was needed the call_nt_transact_xxxx
1985                                 calls have already sent it. If outsize != -1 then it is
1986                                 returning an error packet. */
1987
1988  bad_param:
1989
1990         SAFE_FREE(params);
1991         SAFE_FREE(data);
1992         SAFE_FREE(setup);
1993         END_PROFILE(SMBnttrans);
1994         return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1995 }