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 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   /*
  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|
 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         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         START_PROFILE(SMBntcreateX);
 568
 569         /* If it's an IPC, use the pipe handler. */
 570
 571         if (IS_IPC(conn)) {
 572                 if (lp_nt_pipe_support()) {
 573                         END_PROFILE(SMBntcreateX);
 574                         return do_ntcreate_pipe_open(conn,inbuf,outbuf,length,bufsize);
 575                 } else {
 576                         END_PROFILE(SMBntcreateX);
 577                         return(ERROR_DOS(ERRDOS,ERRbadaccess));
 578                 }
 579         }
 580
 581
 582         /*
 583          * We need to construct the open_and_X ofun value from the
 584          * NT values, as that's what our code is structured to accept.
 585          */
 586
 587         if((smb_ofun = map_create_disposition( create_disposition )) == -1) {
 588                 END_PROFILE(SMBntcreateX);
 589                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
 590         }
 591
 592         /*
 593          * Get the file name.
 594          */
 595
 596         if(root_dir_fid != 0) {
 597                 /*
 598                  * This filename is relative to a directory fid.
 599                  */
 600                 files_struct *dir_fsp = file_fsp(inbuf,smb_ntcreate_RootDirectoryFid);
 601                 size_t dir_name_len;
 602
 603                 if(!dir_fsp) {
 604                         END_PROFILE(SMBntcreateX);
 605                         return(ERROR_DOS(ERRDOS,ERRbadfid));
 606                 }
 607
 608                 if(!dir_fsp->is_directory) {
 609
 610                         srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
 611
 612                         /*
 613                          * Check to see if this is a mac fork of some kind.
 614                          */
 615
 616                         if( strchr_m(fname, ':')) {
 617                                 END_PROFILE(SMBntcreateX);
 618                                 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
 619                         }
 620                         END_PROFILE(SMBntcreateX);
 621                         return(ERROR_DOS(ERRDOS,ERRbadfid));
 622                 }
 623
 624                 /*
 625                  * Copy in the base directory name.
 626                  */
 627
 628                 pstrcpy( fname, dir_fsp->fsp_name );
 629                 dir_name_len = strlen(fname);
 630
 631                 /*
 632                  * Ensure it ends in a '\'.
 633                  */
 634
 635                 if(fname[dir_name_len-1] != '\\' && fname[dir_name_len-1] != '/') {
 636                         pstrcat(fname, "\\");
 637                         dir_name_len++;
 638                 }
 639
 640                 srvstr_pull_buf(inbuf, &fname[dir_name_len], smb_buf(inbuf), sizeof(fname)-dir_name_len, STR_TERMINATE);
 641         } else {
 642                 srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
 643
 644                 /*
 645                  * Check to see if this is a mac fork of some kind.
 646                  */
 647
 648                 if( strchr_m(fname, ':')) {
 649                         END_PROFILE(SMBntcreateX);
 650                         return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
 651                 }
 652         }
 653
 654         /*
 655          * Now contruct the smb_open_mode value from the filename,
 656          * desired access and the share access.
 657          */
 658         RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
 659
 660         if((smb_open_mode = map_share_mode(fname, create_options, &desired_access,
 661                                            share_access,
 662                                            file_attributes)) == -1) {
 663                 END_PROFILE(SMBntcreateX);
 664                 return ERROR_DOS(ERRDOS,ERRbadaccess);
 665         }
 666
 667         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 668         if (oplock_request) {
 669                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
 670         }
 671
 672         /*
 673          * Ordinary file or directory.
 674          */
 675
 676         /*
 677          * Check if POSIX semantics are wanted.
 678          */
 679
 680         set_posix_case_semantics(file_attributes);
 681
 682         unix_convert(fname,conn,0,&bad_path,&sbuf);
 683
 684         unixmode = unix_mode(conn,smb_attr | aARCH, fname);
 685
 686         /*
 687          * If it's a request for a directory open, deal with it separately.
 688          */
 689
 690         if(create_options & FILE_DIRECTORY_FILE) {
 691                 oplock_request = 0;
 692
 693                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
 694
 695                 restore_case_semantics(file_attributes);
 696
 697                 if(!fsp) {
 698                         set_bad_path_error(errno, bad_path);
 699                         END_PROFILE(SMBntcreateX);
 700                         return(UNIXERROR(ERRDOS,ERRnoaccess));
 701                 }
 702         } else {
 703                 /*
 704                  * Ordinary file case.
 705                  */
 706
 707                 /* NB. We have a potential bug here. If we
 708                  * cause an oplock break to ourselves, then we
 709                  * could end up processing filename related
 710                  * SMB requests whilst we await the oplock
 711                  * break response. As we may have changed the
 712                  * filename case semantics to be POSIX-like,
 713                  * this could mean a filename request could
 714                  * fail when it should succeed. This is a rare
 715                  * condition, but eventually we must arrange
 716                  * to restore the correct case semantics
 717                  * before issuing an oplock break request to
 718                  * our client. JRA.  */
 719
 720                 fsp = open_file_shared1(conn,fname,&sbuf,
 721                                         desired_access,
 722                                         smb_open_mode,
 723                                         smb_ofun,unixmode, oplock_request,
 724                                         &rmode,&smb_action);
 725
 726                 if (!fsp) {
 727                         /* We cheat here. There are two cases we
 728                          * care about. One is a directory rename,
 729                          * where the NT client will attempt to
 730                          * open the source directory for
 731                          * DELETE access. Note that when the
 732                          * NT client does this it does *not*
 733                          * set the directory bit in the
 734                          * request packet. This is translated
 735                          * into a read/write open
 736                          * request. POSIX states that any open
 737                          * for write request on a directory
 738                          * will generate an EISDIR error, so
 739                          * we can catch this here and open a
 740                          * pseudo handle that is flagged as a
 741                          * directory. The second is an open
 742                          * for a permissions read only, which
 743                          * we handle in the open_file_stat case. JRA.
 744                          */
 745
 746                         if(errno == EISDIR) {
 747
 748                                 /*
 749                                  * Fail the open if it was explicitly a non-directory file.
 750                                  */
 751
 752                                 if (create_options & FILE_NON_DIRECTORY_FILE) {
 753                                         restore_case_semantics(file_attributes);
 754                                         SSVAL(outbuf, smb_flg2,
 755                                               SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
 756                                         END_PROFILE(SMBntcreateX);
 757                                         return ERROR_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
 758                                 }
 759
 760                                 oplock_request = 0;
 761                                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
 762
 763                                 if(!fsp) {
 764                                         restore_case_semantics(file_attributes);
 765                                         set_bad_path_error(errno, bad_path);
 766                                         END_PROFILE(SMBntcreateX);
 767                                         return(UNIXERROR(ERRDOS,ERRnoaccess));
 768                                 }
 769                         } else {
 770
 771                                 restore_case_semantics(file_attributes);
 772                                 set_bad_path_error(errno, bad_path);
 773                                 END_PROFILE(SMBntcreateX);
 774                                 return(UNIXERROR(ERRDOS,ERRnoaccess));
 775                         }
 776                 }
 777         }
 778
 779         restore_case_semantics(file_attributes);
 780
 781         file_len = sbuf.st_size;
 782         fmode = dos_mode(conn,fname,&sbuf);
 783         if(fmode == 0)
 784                 fmode = FILE_ATTRIBUTE_NORMAL;
 785         if (!fsp->is_directory && (fmode & aDIR)) {
 786                 close_file(fsp,False);
 787                 END_PROFILE(SMBntcreateX);
 788                 return ERROR_DOS(ERRDOS,ERRnoaccess);
 789         }
 790
 791         /*
 792          * If the caller set the extended oplock request bit
 793          * and we granted one (by whatever means) - set the
 794          * correct bit for extended oplock reply.
 795          */
 796
 797         if (oplock_request && lp_fake_oplocks(SNUM(conn)))
 798                 smb_action |= EXTENDED_OPLOCK_GRANTED;
 799
 800         if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
 801                 smb_action |= EXTENDED_OPLOCK_GRANTED;
 802
 803 #if 0
 804         /* W2K sends back 42 words here ! If we do the same it breaks offline sync. Go figure... ? JRA. */
 805         set_message(outbuf,42,0,True);
 806 #else
 807         set_message(outbuf,34,0,True);
 808 #endif
 809
 810         p = outbuf + smb_vwv2;
 811
 812         /*
 813          * Currently as we don't support level II oplocks we just report
 814          * exclusive & batch here.
 815          */
 816
 817         if (smb_action & EXTENDED_OPLOCK_GRANTED) {
 818                 if (flags & REQUEST_BATCH_OPLOCK) {
 819                         SCVAL(p,0, BATCH_OPLOCK_RETURN);
 820                 } else {
 821                         SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN);
 822                 }
 823         } else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type)) {
 824                 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
 825         } else {
 826                 SCVAL(p,0,NO_OPLOCK_RETURN);
 827         }
 828
 829         p++;
 830         SSVAL(p,0,fsp->fnum);
 831         p += 2;
 832         SIVAL(p,0,smb_action);
 833         p += 4;
 834
 835         /* Create time. */
 836         c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
 837
 838         if (lp_dos_filetime_resolution(SNUM(conn))) {
 839                 c_time &= ~1;
 840                 sbuf.st_atime &= ~1;
 841                 sbuf.st_mtime &= ~1;
 842                 sbuf.st_mtime &= ~1;
 843         }
 844
 845         put_long_date(p,c_time);
 846         p += 8;
 847         put_long_date(p,sbuf.st_atime); /* access time */
 848         p += 8;
 849         put_long_date(p,sbuf.st_mtime); /* write time */
 850         p += 8;
 851         put_long_date(p,sbuf.st_mtime); /* change time */
 852         p += 8;
 853         SIVAL(p,0,fmode); /* File Attributes. */
 854         p += 4;
 855         SOFF_T(p, 0, SMB_ROUNDUP_ALLOCATION(file_len));
 856         p += 8;
 857         SOFF_T(p,0,file_len);
 858         p += 12;
 859         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 860
 861         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name));
 862
 863         result = chain_reply(inbuf,outbuf,length,bufsize);
 864         END_PROFILE(SMBntcreateX);
 865         return result;
 866 }
 867
 868 /****************************************************************************
 869  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 870 ****************************************************************************/
 871
 872 static int do_nt_transact_create_pipe( connection_struct *conn,
 873                                         char *inbuf, char *outbuf, int length,
 874                                         int bufsize, char **ppsetup, char **ppparams,
 875                                         char **ppdata)
 876 {
 877         pstring fname;
 878         int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount);
 879         char *params = *ppparams;
 880         int ret;
 881         int pnum = -1;
 882         char *p = NULL;
 883
 884         /*
 885          * Ensure minimum number of parameters sent.
 886          */
 887
 888         if(total_parameter_count < 54) {
 889                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)total_parameter_count));
 890                 return ERROR_DOS(ERRDOS,ERRbadaccess);
 891         }
 892
 893         srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
 894
 895         if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0)
 896                 return ret;
 897
 898         /* Realloc the size of parameters and data we will return */
 899         params = Realloc(*ppparams, 69);
 900         if(params == NULL)
 901                 return ERROR_DOS(ERRDOS,ERRnomem);
 902
 903         *ppparams = params;
 904
 905         memset((char *)params,'\0',69);
 906
 907         p = params;
 908         SCVAL(p,0,NO_OPLOCK_RETURN);
 909
 910         p += 2;
 911         SSVAL(p,0,pnum);
 912         p += 2;
 913         SIVAL(p,0,FILE_WAS_OPENED);
 914         p += 8;
 915
 916         p += 32;
 917         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 918         p += 20;
 919         /* File type. */
 920         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 921         /* Device state. */
 922         SSVAL(p,2, 0x5FF); /* ? */
 923
 924         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 925
 926         /* Send the required number of replies */
 927         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 69, *ppdata, 0);
 928
 929         return -1;
 930 }
 931
 932 /****************************************************************************
 933  Internal fn to set security descriptors.
 934 ****************************************************************************/
 935
 936 static NTSTATUS set_sd(files_struct *fsp, char *data, uint32 sd_len, uint32 security_info_sent)
 937 {
 938         prs_struct pd;
 939         SEC_DESC *psd = NULL;
 940         TALLOC_CTX *mem_ctx;
 941         BOOL ret;
 942
 943         if (sd_len == 0) {
 944                 return NT_STATUS_OK;
 945         }
 946
 947         /*
 948          * Init the parse struct we will unmarshall from.
 949          */
 950
 951         if ((mem_ctx = talloc_init()) == NULL) {
 952                 DEBUG(0,("set_sd: talloc_init failed.\n"));
 953                 return NT_STATUS_NO_MEMORY;
 954         }
 955
 956         prs_init(&pd, 0, mem_ctx, UNMARSHALL);
 957
 958         /*
 959          * Setup the prs_struct to point at the memory we just
 960          * allocated.
 961          */
 962
 963         prs_give_memory( &pd, data, sd_len, False);
 964
 965         /*
 966          * Finally, unmarshall from the data buffer.
 967          */
 968
 969         if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
 970                 DEBUG(0,("set_sd: Error in unmarshalling security descriptor.\n"));
 971                 /*
 972                  * Return access denied for want of a better error message..
 973                  */
 974                 talloc_destroy(mem_ctx);
 975                 return NT_STATUS_NO_MEMORY;
 976         }
 977
 978         if (psd->off_owner_sid==0)
 979                 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
 980         if (psd->off_grp_sid==0)
 981                 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
 982         if (psd->off_sacl==0)
 983                 security_info_sent &= ~SACL_SECURITY_INFORMATION;
 984         if (psd->off_dacl==0)
 985                 security_info_sent &= ~DACL_SECURITY_INFORMATION;
 986
 987         ret = fsp->conn->vfs_ops.fset_nt_acl( fsp, fsp->fd, security_info_sent, psd);
 988
 989         if (!ret) {
 990                 talloc_destroy(mem_ctx);
 991                 return NT_STATUS_ACCESS_DENIED;
 992         }
 993
 994         talloc_destroy(mem_ctx);
 995
 996         return NT_STATUS_OK;
 997 }
 998
 999 /****************************************************************************
1000  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1001 ****************************************************************************/
1002
1003 static int call_nt_transact_create(connection_struct *conn,
1004                                         char *inbuf, char *outbuf, int length,
1005                                         int bufsize, char **ppsetup, char **ppparams,
1006                                         char **ppdata)
1007 {
1008         pstring fname;
1009         char *params = *ppparams;
1010         char *data = *ppdata;
1011         int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount);
1012         /* Breakout the oplock request bits so we can set the reply bits separately. */
1013         int oplock_request = 0;
1014         mode_t unixmode;
1015         int fmode=0,rmode=0;
1016         SMB_OFF_T file_len = 0;
1017         SMB_STRUCT_STAT sbuf;
1018         int smb_action = 0;
1019         BOOL bad_path = False;
1020         files_struct *fsp = NULL;
1021         char *p = NULL;
1022         uint32 flags;
1023         uint32 desired_access;
1024         uint32 file_attributes;
1025         uint32 share_access;
1026         uint32 create_disposition;
1027         uint32 create_options;
1028         uint32 sd_len;
1029         uint16 root_dir_fid;
1030         int smb_ofun;
1031         int smb_open_mode;
1032         int smb_attr;
1033         time_t c_time;
1034         NTSTATUS nt_status;
1035
1036         DEBUG(5,("call_nt_transact_create\n"));
1037
1038         /*
1039          * If it's an IPC, use the pipe handler.
1040          */
1041
1042         if (IS_IPC(conn)) {
1043                 if (lp_nt_pipe_support())
1044                         return do_nt_transact_create_pipe(conn, inbuf, outbuf, length,
1045                                         bufsize, ppsetup, ppparams, ppdata);
1046                 else
1047                         return ERROR_DOS(ERRDOS,ERRbadaccess);
1048         }
1049
1050         /*
1051          * Ensure minimum number of parameters sent.
1052          */
1053
1054         if(total_parameter_count < 54) {
1055                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)total_parameter_count));
1056                 return ERROR_DOS(ERRDOS,ERRbadaccess);
1057         }
1058
1059         flags = IVAL(params,0);
1060         desired_access = IVAL(params,8);
1061         file_attributes = IVAL(params,20);
1062         share_access = IVAL(params,24);
1063         create_disposition = IVAL(params,28);
1064         create_options = IVAL(params,32);
1065         sd_len = IVAL(params,36);
1066         root_dir_fid = (uint16)IVAL(params,4);
1067         smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
1068
1069         /*
1070          * We need to construct the open_and_X ofun value from the
1071          * NT values, as that's what our code is structured to accept.
1072          */
1073
1074         if((smb_ofun = map_create_disposition( create_disposition )) == -1)
1075                 return ERROR_DOS(ERRDOS,ERRbadmem);
1076
1077         /*
1078          * Get the file name.
1079          */
1080
1081         if(root_dir_fid != 0) {
1082                 /*
1083                  * This filename is relative to a directory fid.
1084                  */
1085
1086                 files_struct *dir_fsp = file_fsp(params,4);
1087                 size_t dir_name_len;
1088
1089                 if(!dir_fsp)
1090                         return ERROR_DOS(ERRDOS,ERRbadfid);
1091
1092                 if(!dir_fsp->is_directory) {
1093
1094                         srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
1095
1096                         /*
1097                          * Check to see if this is a mac fork of some kind.
1098                          */
1099
1100                         if( strchr_m(fname, ':'))
1101                                 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1102
1103                         return ERROR_DOS(ERRDOS,ERRbadfid);
1104                 }
1105
1106                 /*
1107                  * Copy in the base directory name.
1108                  */
1109
1110                 pstrcpy( fname, dir_fsp->fsp_name );
1111                 dir_name_len = strlen(fname);
1112
1113                 /*
1114                  * Ensure it ends in a '\'.
1115                  */
1116
1117                 if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) {
1118                         pstrcat(fname, "\\");
1119                         dir_name_len++;
1120                 }
1121
1122                 srvstr_pull(inbuf, &fname[dir_name_len], params+53, sizeof(fname)-dir_name_len,
1123                                 total_parameter_count-53, STR_TERMINATE);
1124         } else {
1125                 srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
1126
1127                 /*
1128                  * Check to see if this is a mac fork of some kind.
1129                  */
1130
1131                 if( strchr_m(fname, ':'))
1132                         return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1133         }
1134
1135         /*
1136          * Now contruct the smb_open_mode value from the desired access
1137          * and the share access.
1138          */
1139
1140         if((smb_open_mode = map_share_mode( fname, create_options, &desired_access,
1141                                                 share_access, file_attributes)) == -1)
1142                 return ERROR_DOS(ERRDOS,ERRbadaccess);
1143
1144         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1145         oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
1146
1147         /*
1148          * Check if POSIX semantics are wanted.
1149          */
1150
1151         set_posix_case_semantics(file_attributes);
1152
1153         RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
1154
1155         unix_convert(fname,conn,0,&bad_path,&sbuf);
1156
1157         unixmode = unix_mode(conn,smb_attr | aARCH, fname);
1158
1159         /*
1160          * If it's a request for a directory open, deal with it separately.
1161          */
1162
1163         if(create_options & FILE_DIRECTORY_FILE) {
1164
1165                 oplock_request = 0;
1166
1167                 /*
1168                  * We will get a create directory here if the Win32
1169                  * app specified a security descriptor in the
1170                  * CreateDirectory() call.
1171                  */
1172
1173                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
1174
1175                 if(!fsp) {
1176                         restore_case_semantics(file_attributes);
1177                         set_bad_path_error(errno, bad_path);
1178                         return(UNIXERROR(ERRDOS,ERRnoaccess));
1179                 }
1180
1181         } else {
1182
1183                 /*
1184                  * Ordinary file case.
1185                  */
1186
1187                 fsp = open_file_shared1(conn,fname,&sbuf,desired_access,
1188                                                 smb_open_mode,smb_ofun,unixmode,
1189                                                 oplock_request,&rmode,&smb_action);
1190
1191                 if (!fsp) {
1192
1193                         if(errno == EISDIR) {
1194
1195                                 /*
1196                                  * Fail the open if it was explicitly a non-directory file.
1197                                  */
1198
1199                                 if (create_options & FILE_NON_DIRECTORY_FILE) {
1200                                         restore_case_semantics(file_attributes);
1201                                         SSVAL(outbuf, smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
1202                                         return ERROR_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
1203                                 }
1204
1205                                 oplock_request = 0;
1206                                 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
1207
1208                                 if(!fsp) {
1209                                         restore_case_semantics(file_attributes);
1210                                         set_bad_path_error(errno, bad_path);
1211                                         return(UNIXERROR(ERRDOS,ERRnoaccess));
1212                                 }
1213                         } else {
1214                                 restore_case_semantics(file_attributes);
1215                                 set_bad_path_error(errno, bad_path);
1216                                 return(UNIXERROR(ERRDOS,ERRnoaccess));
1217                         }
1218                 }
1219
1220                 file_len = sbuf.st_size;
1221                 fmode = dos_mode(conn,fname,&sbuf);
1222                 if(fmode == 0)
1223                         fmode = FILE_ATTRIBUTE_NORMAL;
1224
1225                 if (fmode & aDIR) {
1226                         close_file(fsp,False);
1227                         restore_case_semantics(file_attributes);
1228                         return ERROR_DOS(ERRDOS,ERRnoaccess);
1229                 }
1230
1231                 /*
1232                  * If the caller set the extended oplock request bit
1233                  * and we granted one (by whatever means) - set the
1234                  * correct bit for extended oplock reply.
1235                  */
1236
1237                 if (oplock_request && lp_fake_oplocks(SNUM(conn)))
1238                         smb_action |= EXTENDED_OPLOCK_GRANTED;
1239
1240                 if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
1241                         smb_action |= EXTENDED_OPLOCK_GRANTED;
1242         }
1243
1244         /*
1245          * Now try and apply the desired SD.
1246          */
1247
1248         if (sd_len && !NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, sd_len, ALL_SECURITY_INFORMATION))) {
1249                 close_file(fsp,False);
1250                 restore_case_semantics(file_attributes);
1251                 return ERROR_NT(nt_status);
1252         }
1253
1254         restore_case_semantics(file_attributes);
1255
1256         /* Realloc the size of parameters and data we will return */
1257         params = Realloc(*ppparams, 69);
1258         if(params == NULL)
1259                 return ERROR_DOS(ERRDOS,ERRnomem);
1260
1261         *ppparams = params;
1262
1263         memset((char *)params,'\0',69);
1264
1265         p = params;
1266         if (smb_action & EXTENDED_OPLOCK_GRANTED)
1267                 SCVAL(p,0, BATCH_OPLOCK_RETURN);
1268         else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type))
1269                 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
1270         else
1271                 SCVAL(p,0,NO_OPLOCK_RETURN);
1272
1273         p += 2;
1274         SSVAL(p,0,fsp->fnum);
1275         p += 2;
1276         SIVAL(p,0,smb_action);
1277         p += 8;
1278
1279         /* Create time. */
1280         c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
1281
1282         if (lp_dos_filetime_resolution(SNUM(conn))) {
1283                 c_time &= ~1;
1284                 sbuf.st_atime &= ~1;
1285                 sbuf.st_mtime &= ~1;
1286                 sbuf.st_mtime &= ~1;
1287         }
1288
1289         put_long_date(p,c_time);
1290         p += 8;
1291         put_long_date(p,sbuf.st_atime); /* access time */
1292         p += 8;
1293         put_long_date(p,sbuf.st_mtime); /* write time */
1294         p += 8;
1295         put_long_date(p,sbuf.st_mtime); /* change time */
1296         p += 8;
1297         SIVAL(p,0,fmode); /* File Attributes. */
1298         p += 4;
1299         SOFF_T(p, 0, SMB_ROUNDUP_ALLOCATION(file_len));
1300         p += 8;
1301         SOFF_T(p,0,file_len);
1302
1303         DEBUG(5,("call_nt_transact_create: open name = %s\n", fname));
1304
1305         /* Send the required number of replies */
1306         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 69, *ppdata, 0);
1307
1308         return -1;
1309 }
1310
1311 /****************************************************************************
1312  Reply to a NT CANCEL request.
1313 ****************************************************************************/
1314 int reply_ntcancel(connection_struct *conn,
1315                    char *inbuf,char *outbuf,int length,int bufsize)
1316 {
1317         /*
1318          * Go through and cancel any pending change notifies.
1319          */
1320
1321         int mid = SVAL(inbuf,smb_mid);
1322         START_PROFILE(SMBntcancel);
1323         remove_pending_change_notify_requests_by_mid(mid);
1324         remove_pending_lock_requests_by_mid(mid);
1325
1326         DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", mid));
1327
1328         END_PROFILE(SMBntcancel);
1329         return(-1);
1330 }
1331
1332 /****************************************************************************
1333  Reply to an unsolicited SMBNTtranss - just ignore it!
1334 ****************************************************************************/
1335 int reply_nttranss(connection_struct *conn,
1336                    char *inbuf,char *outbuf,int length,int bufsize)
1337 {
1338         START_PROFILE(SMBnttranss);
1339         DEBUG(4,("Ignoring nttranss of length %d\n",length));
1340         END_PROFILE(SMBnttranss);
1341         return(-1);
1342 }
1343
1344 /****************************************************************************
1345  Reply to a notify change - queue the request and
1346  don't allow a directory to be opened.
1347 ****************************************************************************/
1348 static int call_nt_transact_notify_change(connection_struct *conn,
1349                                    char *inbuf, char *outbuf, int length,
1350                                    int bufsize,
1351                                    char **ppsetup,
1352                                    char **ppparams, char **ppdata)
1353 {
1354         char *setup = *ppsetup;
1355         files_struct *fsp;
1356         uint32 flags;
1357
1358         fsp = file_fsp(setup,4);
1359         flags = IVAL(setup, 0);
1360
1361         DEBUG(3,("call_nt_transact_notify_change\n"));
1362
1363         if(!fsp)
1364                 return ERROR_DOS(ERRDOS,ERRbadfid);
1365
1366         if((!fsp->is_directory) || (conn != fsp->conn))
1367                 return ERROR_DOS(ERRDOS,ERRbadfid);
1368
1369         if (!change_notify_set(inbuf, fsp, conn, flags))
1370                 return(UNIXERROR(ERRDOS,ERRbadfid));
1371
1372         DEBUG(3,("call_nt_transact_notify_change: notify change called on directory \
1373 name = %s\n", fsp->fsp_name ));
1374
1375         return -1;
1376 }
1377
1378 /****************************************************************************
1379  Reply to an NT transact rename command.
1380 ****************************************************************************/
1381
1382 static int call_nt_transact_rename(connection_struct *conn,
1383                                    char *inbuf, char *outbuf, int length,
1384                                    int bufsize,
1385                                    char **ppsetup, char **ppparams, char **ppdata)
1386 {
1387         char *params = *ppparams;
1388         pstring new_name;
1389         files_struct *fsp = file_fsp(params, 0);
1390         BOOL replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False;
1391         NTSTATUS status;
1392
1393         CHECK_FSP(fsp, conn);
1394         srvstr_pull(inbuf, new_name, params+4, sizeof(new_name), -1, STR_TERMINATE);
1395
1396         status = rename_internals(conn, fsp->fsp_name,
1397                                   new_name, replace_if_exists);
1398         if (!NT_STATUS_IS_OK(status))
1399                 return ERROR_NT(status);
1400
1401         /*
1402          * Rename was successful.
1403          */
1404         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1405
1406         DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
1407                  fsp->fsp_name, new_name));
1408
1409         /*
1410          * Win2k needs a changenotify request response before it will
1411          * update after a rename..
1412          */
1413
1414         process_pending_change_notify_queue((time_t)0);
1415
1416         return -1;
1417 }
1418
1419 /******************************************************************************
1420  Fake up a completely empty SD.
1421 *******************************************************************************/
1422
1423 static size_t get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1424 {
1425         extern DOM_SID global_sid_World;
1426         size_t sd_size;
1427
1428         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1429         if(!*ppsd) {
1430                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1431                 sd_size = 0;
1432         }
1433
1434         return sd_size;
1435 }
1436
1437 /****************************************************************************
1438  Reply to query a security descriptor - currently this is not implemented (it
1439  is planned to be though). Right now it just returns the same thing NT would
1440  when queried on a FAT filesystem. JRA.
1441 ****************************************************************************/
1442
1443 static int call_nt_transact_query_security_desc(connection_struct *conn,
1444                                                 char *inbuf, char *outbuf,
1445                                                 int length, int bufsize,
1446                                                 char **ppsetup, char **ppparams, char **ppdata)
1447 {
1448   uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
1449   char *params = *ppparams;
1450   char *data = *ppdata;
1451   prs_struct pd;
1452   SEC_DESC *psd = NULL;
1453   size_t sd_size;
1454   TALLOC_CTX *mem_ctx;
1455
1456   files_struct *fsp = file_fsp(params,0);
1457
1458   if(!fsp)
1459     return ERROR_DOS(ERRDOS,ERRbadfid);
1460
1461   DEBUG(3,("call_nt_transact_query_security_desc: file = %s\n", fsp->fsp_name ));
1462
1463   params = Realloc(*ppparams, 4);
1464   if(params == NULL)
1465     return ERROR_DOS(ERRDOS,ERRnomem);
1466
1467   *ppparams = params;
1468
1469   if ((mem_ctx = talloc_init()) == NULL) {
1470     DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n"));
1471     return ERROR_DOS(ERRDOS,ERRnomem);
1472   }
1473
1474   /*
1475    * Get the permissions to return.
1476    */
1477
1478   if (!lp_nt_acl_support(SNUM(conn)))
1479     sd_size = get_null_nt_acl(mem_ctx, &psd);
1480   else
1481     sd_size = conn->vfs_ops.fget_nt_acl(fsp, fsp->fd, &psd);
1482
1483   if (sd_size == 0) {
1484     talloc_destroy(mem_ctx);
1485     return(UNIXERROR(ERRDOS,ERRnoaccess));
1486   }
1487
1488   DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %d.\n",(int)sd_size));
1489
1490   SIVAL(params,0,(uint32)sd_size);
1491
1492   if(max_data_count < sd_size) {
1493
1494     send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_BUFFER_TOO_SMALL,
1495                     params, 4, *ppdata, 0);
1496     talloc_destroy(mem_ctx);
1497     return -1;
1498   }
1499
1500   /*
1501    * Allocate the data we will point this at.
1502    */
1503
1504   data = Realloc(*ppdata, sd_size);
1505   if(data == NULL) {
1506     talloc_destroy(mem_ctx);
1507     return ERROR_DOS(ERRDOS,ERRnomem);
1508   }
1509
1510   *ppdata = data;
1511
1512   memset(data, '\0', sd_size);
1513
1514   /*
1515    * Init the parse struct we will marshall into.
1516    */
1517
1518   prs_init(&pd, 0, mem_ctx, MARSHALL);
1519
1520   /*
1521    * Setup the prs_struct to point at the memory we just
1522    * allocated.
1523    */
1524
1525   prs_give_memory( &pd, data, (uint32)sd_size, False);
1526
1527   /*
1528    * Finally, linearize into the outgoing buffer.
1529    */
1530
1531   if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1532     DEBUG(0,("call_nt_transact_query_security_desc: Error in marshalling \
1533 security descriptor.\n"));
1534     /*
1535      * Return access denied for want of a better error message..
1536      */
1537     talloc_destroy(mem_ctx);
1538     return(UNIXERROR(ERRDOS,ERRnoaccess));
1539   }
1540
1541   /*
1542    * Now we can delete the security descriptor.
1543    */
1544
1545   talloc_destroy(mem_ctx);
1546
1547   send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 4, data, (int)sd_size);
1548   return -1;
1549 }
1550
1551 /****************************************************************************
1552  Reply to set a security descriptor. Map to UNIX perms.
1553 ****************************************************************************/
1554
1555 static int call_nt_transact_set_security_desc(connection_struct *conn,
1556                                                                         char *inbuf, char *outbuf, int length,
1557                                                                         int bufsize, char **ppsetup,
1558                                                                         char **ppparams, char **ppdata)
1559 {
1560         uint32 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
1561         char *params= *ppparams;
1562         char *data = *ppdata;
1563         uint32 total_data_count = (uint32)IVAL(inbuf, smb_nts_TotalDataCount);
1564         files_struct *fsp = NULL;
1565         uint32 security_info_sent = 0;
1566         NTSTATUS nt_status;
1567
1568         if(total_parameter_count < 8)
1569                 return ERROR_DOS(ERRDOS,ERRbadfunc);
1570
1571         if((fsp = file_fsp(params,0)) == NULL)
1572                 return ERROR_DOS(ERRDOS,ERRbadfid);
1573
1574         if(!lp_nt_acl_support(SNUM(conn)))
1575                 goto done;
1576
1577         security_info_sent = IVAL(params,4);
1578
1579         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1580                 (unsigned int)security_info_sent ));
1581
1582         if (total_data_count == 0)
1583                 return ERROR_DOS(ERRDOS, ERRbadaccess);
1584
1585         if (!NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, total_data_count, security_info_sent)))
1586                 return ERROR_NT(nt_status);
1587
1588   done:
1589
1590         send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1591         return -1;
1592 }
1593
1594 /****************************************************************************
1595  Reply to IOCTL - not implemented - no plans.
1596 ****************************************************************************/
1597
1598 static int call_nt_transact_ioctl(connection_struct *conn,
1599                                   char *inbuf, char *outbuf, int length,
1600                                   int bufsize,
1601                                   char **ppsetup, char **ppparams, char **ppdata)
1602 {
1603         static BOOL logged_message = False;
1604
1605         if(!logged_message) {
1606                 DEBUG(3,("call_nt_transact_ioctl: Currently not implemented.\n"));
1607                 logged_message = True; /* Only print this once... */
1608         }
1609         return ERROR_DOS(ERRSRV,ERRnosupport);
1610 }
1611
1612 /****************************************************************************
1613  Reply to a SMBNTtrans.
1614 ****************************************************************************/
1615 int reply_nttrans(connection_struct *conn,
1616                   char *inbuf,char *outbuf,int length,int bufsize)
1617 {
1618   int  outsize = 0;
1619 #if 0 /* Not used. */
1620   uint16 max_setup_count = CVAL(inbuf, smb_nt_MaxSetupCount);
1621   uint32 max_parameter_count = IVAL(inbuf, smb_nt_MaxParameterCount);
1622   uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
1623 #endif /* Not used. */
1624   uint32 total_parameter_count = IVAL(inbuf, smb_nt_TotalParameterCount);
1625   uint32 total_data_count = IVAL(inbuf, smb_nt_TotalDataCount);
1626   uint32 parameter_count = IVAL(inbuf,smb_nt_ParameterCount);
1627   uint32 parameter_offset = IVAL(inbuf,smb_nt_ParameterOffset);
1628   uint32 data_count = IVAL(inbuf,smb_nt_DataCount);
1629   uint32 data_offset = IVAL(inbuf,smb_nt_DataOffset);
1630   uint16 setup_count = 2*CVAL(inbuf,smb_nt_SetupCount); /* setup count is in *words* */
1631   uint16 function_code = SVAL( inbuf, smb_nt_Function);
1632   char *params = NULL, *data = NULL, *setup = NULL;
1633   uint32 num_params_sofar, num_data_sofar;
1634   START_PROFILE(SMBnttrans);
1635
1636   if(global_oplock_break && (function_code == NT_TRANSACT_CREATE)) {
1637     /*
1638      * Queue this open message as we are the process of an oplock break.
1639      */
1640
1641     DEBUG(2,("reply_nttrans: queueing message NT_TRANSACT_CREATE \
1642 due to being in oplock break state.\n" ));
1643
1644     push_oplock_pending_smb_message( inbuf, length);
1645     END_PROFILE(SMBnttrans);
1646     return -1;
1647   }
1648
1649   if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
1650     END_PROFILE(SMBnttrans);
1651     return ERROR_DOS(ERRSRV,ERRaccess);
1652   }
1653
1654   outsize = set_message(outbuf,0,0,True);
1655
1656   /*
1657    * All nttrans messages we handle have smb_wct == 19 + setup_count.
1658    * Ensure this is so as a sanity check.
1659    */
1660
1661   if(CVAL(inbuf, smb_wct) != 19 + (setup_count/2)) {
1662     DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
1663           CVAL(inbuf, smb_wct), 19 + (setup_count/2)));
1664     END_PROFILE(SMBnttrans);
1665     return ERROR_DOS(ERRSRV,ERRerror);
1666   }
1667
1668   /* Allocate the space for the setup, the maximum needed parameters and data */
1669
1670   if(setup_count > 0)
1671     setup = (char *)malloc(setup_count);
1672   if (total_parameter_count > 0)
1673     params = (char *)malloc(total_parameter_count);
1674   if (total_data_count > 0)
1675     data = (char *)malloc(total_data_count);
1676
1677   if ((total_parameter_count && !params)  || (total_data_count && !data) ||
1678       (setup_count && !setup)) {
1679         SAFE_FREE(setup);
1680         SAFE_FREE(params);
1681         SAFE_FREE(data);
1682     DEBUG(0,("reply_nttrans : Out of memory\n"));
1683     END_PROFILE(SMBnttrans);
1684     return ERROR_DOS(ERRDOS,ERRnomem);
1685   }
1686
1687   /* Copy the param and data bytes sent with this request into
1688      the params buffer */
1689   num_params_sofar = parameter_count;
1690   num_data_sofar = data_count;
1691
1692   if (parameter_count > total_parameter_count || data_count > total_data_count)
1693     exit_server("reply_nttrans: invalid sizes in packet.");
1694
1695   if(setup) {
1696     memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count);
1697     DEBUG(10,("reply_nttrans: setup_count = %d\n", setup_count));
1698     dump_data(10, setup, setup_count);
1699   }
1700   if(params) {
1701     memcpy( params, smb_base(inbuf) + parameter_offset, parameter_count);
1702     DEBUG(10,("reply_nttrans: parameter_count = %d\n", parameter_count));
1703     dump_data(10, params, parameter_count);
1704   }
1705   if(data) {
1706     memcpy( data, smb_base(inbuf) + data_offset, data_count);
1707     DEBUG(10,("reply_nttrans: data_count = %d\n",data_count));
1708     dump_data(10, data, data_count);
1709   }
1710
1711   if(num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
1712     /* We need to send an interim response then receive the rest
1713        of the parameter/data bytes */
1714     outsize = set_message(outbuf,0,0,True);
1715     if (!send_smb(smbd_server_fd(),outbuf))
1716       exit_server("reply_nttrans: send_smb failed.");
1717
1718     while( num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
1719       BOOL ret;
1720
1721       ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT);
1722
1723       if((ret && (CVAL(inbuf, smb_com) != SMBnttranss)) || !ret) {
1724         outsize = set_message(outbuf,0,0,True);
1725         if(ret) {
1726                 DEBUG(0,("reply_nttrans: Invalid secondary nttrans packet\n"));
1727         } else {
1728                 DEBUG(0,("reply_nttrans: %s in getting secondary nttrans response.\n",
1729                          (smb_read_error == READ_ERROR) ? "error" : "timeout" ));
1730         }
1731         SAFE_FREE(params);
1732         SAFE_FREE(data);
1733         SAFE_FREE(setup);
1734         END_PROFILE(SMBnttrans);
1735         return ERROR_DOS(ERRSRV,ERRerror);
1736       }
1737
1738       /* Revise total_params and total_data in case they have changed downwards */
1739       total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
1740       total_data_count = IVAL(inbuf, smb_nts_TotalDataCount);
1741       num_params_sofar += (parameter_count = IVAL(inbuf,smb_nts_ParameterCount));
1742       num_data_sofar += ( data_count = IVAL(inbuf, smb_nts_DataCount));
1743       if (num_params_sofar > total_parameter_count || num_data_sofar > total_data_count)
1744         exit_server("reply_nttrans2: data overflow in secondary nttrans packet");
1745
1746       memcpy( &params[ IVAL(inbuf, smb_nts_ParameterDisplacement)],
1747               smb_base(inbuf) + IVAL(inbuf, smb_nts_ParameterOffset), parameter_count);
1748       memcpy( &data[IVAL(inbuf, smb_nts_DataDisplacement)],
1749               smb_base(inbuf)+ IVAL(inbuf, smb_nts_DataOffset), data_count);
1750     }
1751   }
1752
1753   if (Protocol >= PROTOCOL_NT1)
1754     SSVAL(outbuf,smb_flg2,SVAL(outbuf,smb_flg2) | FLAGS2_IS_LONG_NAME);
1755
1756   /* Now we must call the relevant NT_TRANS function */
1757   switch(function_code) {
1758     case NT_TRANSACT_CREATE:
1759       START_PROFILE_NESTED(NT_transact_create);
1760       outsize = call_nt_transact_create(conn, inbuf, outbuf, length, bufsize,
1761                                         &setup, &params, &data);
1762       END_PROFILE_NESTED(NT_transact_create);
1763       break;
1764     case NT_TRANSACT_IOCTL:
1765       START_PROFILE_NESTED(NT_transact_ioctl);
1766       outsize = call_nt_transact_ioctl(conn,
1767                                        inbuf, outbuf, length, bufsize,
1768                                        &setup, &params, &data);
1769       END_PROFILE_NESTED(NT_transact_ioctl);
1770       break;
1771     case NT_TRANSACT_SET_SECURITY_DESC:
1772       START_PROFILE_NESTED(NT_transact_set_security_desc);
1773       outsize = call_nt_transact_set_security_desc(conn, inbuf, outbuf,
1774                                                    length, bufsize,
1775                                                    &setup, &params, &data);
1776       END_PROFILE_NESTED(NT_transact_set_security_desc);
1777       break;
1778     case NT_TRANSACT_NOTIFY_CHANGE:
1779       START_PROFILE_NESTED(NT_transact_notify_change);
1780       outsize = call_nt_transact_notify_change(conn, inbuf, outbuf,
1781                                                length, bufsize,
1782                                                &setup, &params, &data);
1783       END_PROFILE_NESTED(NT_transact_notify_change);
1784       break;
1785     case NT_TRANSACT_RENAME:
1786       START_PROFILE_NESTED(NT_transact_rename);
1787       outsize = call_nt_transact_rename(conn, inbuf, outbuf, length,
1788                                         bufsize,
1789                                         &setup, &params, &data);
1790       END_PROFILE_NESTED(NT_transact_rename);
1791       break;
1792
1793     case NT_TRANSACT_QUERY_SECURITY_DESC:
1794       START_PROFILE_NESTED(NT_transact_query_security_desc);
1795       outsize = call_nt_transact_query_security_desc(conn, inbuf, outbuf,
1796                                                      length, bufsize,
1797                                                      &setup, &params, &data);
1798       END_PROFILE_NESTED(NT_transact_query_security_desc);
1799       break;
1800   default:
1801           /* Error in request */
1802           DEBUG(0,("reply_nttrans: Unknown request %d in nttrans call\n", function_code));
1803           SAFE_FREE(setup);
1804           SAFE_FREE(params);
1805           SAFE_FREE(data);
1806           END_PROFILE(SMBnttrans);
1807           return ERROR_DOS(ERRSRV,ERRerror);
1808   }
1809
1810   /* As we do not know how many data packets will need to be
1811      returned here the various call_nt_transact_xxxx calls
1812      must send their own. Thus a call_nt_transact_xxxx routine only
1813      returns a value other than -1 when it wants to send
1814      an error packet.
1815   */
1816
1817   SAFE_FREE(setup);
1818   SAFE_FREE(params);
1819   SAFE_FREE(data);
1820   END_PROFILE(SMBnttrans);
1821   return outsize; /* If a correct response was needed the call_nt_transact_xxxx
1822                      calls have already sent it. If outsize != -1 then it is
1823                      returning an error packet. */
1824 }