source3/smbd/nttrans.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB NT transaction handling
   4    Copyright (C) Jeremy Allison                 1994-2007
   5    Copyright (C) Stefan (metze) Metzmacher      2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "smbd/globals.h"
  23
  24 extern enum protocol_types Protocol;
  25 extern const struct generic_mapping file_generic_mapping;
  26
  27 static char *nttrans_realloc(char **ptr, size_t size)
  28 {
  29         if (ptr==NULL) {
  30                 smb_panic("nttrans_realloc() called with NULL ptr");
  31         }
  32
  33         *ptr = (char *)SMB_REALLOC(*ptr, size);
  34         if(*ptr == NULL) {
  35                 return NULL;
  36         }
  37         memset(*ptr,'\0',size);
  38         return *ptr;
  39 }
  40
  41 /****************************************************************************
  42  Send the required number of replies back.
  43  We assume all fields other than the data fields are
  44  set correctly for the type of call.
  45  HACK ! Always assumes smb_setup field is zero.
  46 ****************************************************************************/
  47
  48 void send_nt_replies(connection_struct *conn,
  49                         struct smb_request *req, NTSTATUS nt_error,
  50                      char *params, int paramsize,
  51                      char *pdata, int datasize)
  52 {
  53         int data_to_send = datasize;
  54         int params_to_send = paramsize;
  55         int useable_space;
  56         char *pp = params;
  57         char *pd = pdata;
  58         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  59         int alignment_offset = 3;
  60         int data_alignment_offset = 0;
  61         struct smbd_server_connection *sconn = smbd_server_conn;
  62         int max_send = sconn->smb1.sessions.max_send;
  63
  64         /*
  65          * If there genuinely are no parameters or data to send just send
  66          * the empty packet.
  67          */
  68
  69         if(params_to_send == 0 && data_to_send == 0) {
  70                 reply_outbuf(req, 18, 0);
  71                 show_msg((char *)req->outbuf);
  72                 return;
  73         }
  74
  75         /*
  76          * When sending params and data ensure that both are nicely aligned.
  77          * Only do this alignment when there is also data to send - else
  78          * can cause NT redirector problems.
  79          */
  80
  81         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
  82                 data_alignment_offset = 4 - (params_to_send % 4);
  83         }
  84
  85         /*
  86          * Space is bufsize minus Netbios over TCP header minus SMB header.
  87          * The alignment_offset is to align the param bytes on a four byte
  88          * boundary (2 bytes for data len, one byte pad).
  89          * NT needs this to work correctly.
  90          */
  91
  92         useable_space = max_send - (smb_size
  93                                     + 2 * 18 /* wct */
  94                                     + alignment_offset
  95                                     + data_alignment_offset);
  96
  97         if (useable_space < 0) {
  98                 char *msg = talloc_asprintf(
  99                         talloc_tos(),
 100                         "send_nt_replies failed sanity useable_space = %d!!!",
 101                         useable_space);
 102                 DEBUG(0, ("%s\n", msg));
 103                 exit_server_cleanly(msg);
 104         }
 105
 106         while (params_to_send || data_to_send) {
 107
 108                 /*
 109                  * Calculate whether we will totally or partially fill this packet.
 110                  */
 111
 112                 total_sent_thistime = params_to_send + data_to_send;
 113
 114                 /*
 115                  * We can never send more than useable_space.
 116                  */
 117
 118                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 119
 120                 reply_outbuf(req, 18,
 121                              total_sent_thistime + alignment_offset
 122                              + data_alignment_offset);
 123
 124                 /*
 125                  * We might have had SMBnttranss in req->inbuf, fix that.
 126                  */
 127                 SCVAL(req->outbuf, smb_com, SMBnttrans);
 128
 129                 /*
 130                  * Set total params and data to be sent.
 131                  */
 132
 133                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 134                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 135
 136                 /*
 137                  * Calculate how many parameters and data we can fit into
 138                  * this packet. Parameters get precedence.
 139                  */
 140
 141                 params_sent_thistime = MIN(params_to_send,useable_space);
 142                 data_sent_thistime = useable_space - params_sent_thistime;
 143                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 144
 145                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 146                       params_sent_thistime);
 147
 148                 if(params_sent_thistime == 0) {
 149                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 150                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 151                 } else {
 152                         /*
 153                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 154                          * parameter bytes, however the first 4 bytes of outbuf are
 155                          * the Netbios over TCP header. Thus use smb_base() to subtract
 156                          * them from the calculation.
 157                          */
 158
 159                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 160                               ((smb_buf(req->outbuf)+alignment_offset)
 161                                - smb_base(req->outbuf)));
 162                         /*
 163                          * Absolute displacement of param bytes sent in this packet.
 164                          */
 165
 166                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 167                               pp - params);
 168                 }
 169
 170                 /*
 171                  * Deal with the data portion.
 172                  */
 173
 174                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 175
 176                 if(data_sent_thistime == 0) {
 177                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 178                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 179                 } else {
 180                         /*
 181                          * The offset of the data bytes is the offset of the
 182                          * parameter bytes plus the number of parameters being sent this time.
 183                          */
 184
 185                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 186                               ((smb_buf(req->outbuf)+alignment_offset) -
 187                                smb_base(req->outbuf))
 188                               + params_sent_thistime + data_alignment_offset);
 189                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 190                 }
 191
 192                 /*
 193                  * Copy the param bytes into the packet.
 194                  */
 195
 196                 if(params_sent_thistime) {
 197                         if (alignment_offset != 0) {
 198                                 memset(smb_buf(req->outbuf), 0,
 199                                        alignment_offset);
 200                         }
 201                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 202                                params_sent_thistime);
 203                 }
 204
 205                 /*
 206                  * Copy in the data bytes
 207                  */
 208
 209                 if(data_sent_thistime) {
 210                         if (data_alignment_offset != 0) {
 211                                 memset((smb_buf(req->outbuf)+alignment_offset+
 212                                         params_sent_thistime), 0,
 213                                        data_alignment_offset);
 214                         }
 215                         memcpy(smb_buf(req->outbuf)+alignment_offset
 216                                +params_sent_thistime+data_alignment_offset,
 217                                pd,data_sent_thistime);
 218                 }
 219
 220                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 221                         params_sent_thistime, data_sent_thistime, useable_space));
 222                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 223                         params_to_send, data_to_send, paramsize, datasize));
 224
 225                 if (NT_STATUS_V(nt_error)) {
 226                         error_packet_set((char *)req->outbuf,
 227                                          0, 0, nt_error,
 228                                          __LINE__,__FILE__);
 229                 }
 230
 231                 /* Send the packet */
 232                 show_msg((char *)req->outbuf);
 233                 if (!srv_send_smb(smbd_server_fd(),
 234                                 (char *)req->outbuf,
 235                                 true, req->seqnum+1,
 236                                 IS_CONN_ENCRYPTED(conn),
 237                                 &req->pcd)) {
 238                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 239                 }
 240
 241                 TALLOC_FREE(req->outbuf);
 242
 243                 pp += params_sent_thistime;
 244                 pd += data_sent_thistime;
 245
 246                 params_to_send -= params_sent_thistime;
 247                 data_to_send -= data_sent_thistime;
 248
 249                 /*
 250                  * Sanity check
 251                  */
 252
 253                 if(params_to_send < 0 || data_to_send < 0) {
 254                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 255                                 params_to_send, data_to_send));
 256                         exit_server_cleanly("send_nt_replies: internal error");
 257                 }
 258         }
 259 }
 260
 261 /****************************************************************************
 262  Is it an NTFS stream name ?
 263  An NTFS file name is <path>.<extention>:<stream name>:<stream type>
 264  $DATA can be used as both a stream name and a stream type. A missing stream
 265  name or type implies $DATA.
 266
 267  Both Windows stream names and POSIX files can contain the ':' character.
 268  This function first checks for the existence of a colon in the last component
 269  of the given name.  If the name contains a colon we differentiate between a
 270  stream and POSIX file by checking if the latter exists through a POSIX stat.
 271
 272  Function assumes we've already chdir() to the "root" directory of fname.
 273 ****************************************************************************/
 274
 275 bool is_ntfs_stream_name(const char *fname)
 276 {
 277         const char *lastcomp;
 278         SMB_STRUCT_STAT sbuf;
 279
 280         /* If all pathnames are treated as POSIX we ignore streams. */
 281         if (lp_posix_pathnames()) {
 282                 return false;
 283         }
 284
 285         /* Find the last component of the name. */
 286         if ((lastcomp = strrchr_m(fname, '/')) != NULL)
 287                 ++lastcomp;
 288         else
 289                 lastcomp = fname;
 290
 291         /* If there is no colon in the last component, it's not a stream. */
 292         if (strchr_m(lastcomp, ':') == NULL)
 293                 return false;
 294
 295         /*
 296          * If file already exists on disk, it's not a stream. The stat must
 297          * bypass the vfs layer so streams modules don't intefere.
 298          */
 299         if (sys_stat(fname, &sbuf) == 0) {
 300                 DEBUG(5, ("is_ntfs_stream_name: file %s contains a ':' but is "
 301                         "not a stream\n", fname));
 302                 return false;
 303         }
 304
 305         return true;
 306 }
 307
 308 /****************************************************************************
 309  Reply to an NT create and X call on a pipe
 310 ****************************************************************************/
 311
 312 static void nt_open_pipe(char *fname, connection_struct *conn,
 313                          struct smb_request *req, int *ppnum)
 314 {
 315         files_struct *fsp;
 316         NTSTATUS status;
 317
 318         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 319
 320         /* Strip \\ off the name. */
 321         fname++;
 322
 323         status = open_np_file(req, fname, &fsp);
 324         if (!NT_STATUS_IS_OK(status)) {
 325                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 326                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 327                                         ERRDOS, ERRbadpipe);
 328                         return;
 329                 }
 330                 reply_nterror(req, status);
 331                 return;
 332         }
 333
 334         *ppnum = fsp->fnum;
 335         return;
 336 }
 337
 338 /****************************************************************************
 339  Reply to an NT create and X call for pipes.
 340 ****************************************************************************/
 341
 342 static void do_ntcreate_pipe_open(connection_struct *conn,
 343                                   struct smb_request *req)
 344 {
 345         char *fname = NULL;
 346         int pnum = -1;
 347         char *p = NULL;
 348         uint32 flags = IVAL(req->vwv+3, 1);
 349         TALLOC_CTX *ctx = talloc_tos();
 350
 351         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
 352
 353         if (!fname) {
 354                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 355                                 ERRDOS, ERRbadpipe);
 356                 return;
 357         }
 358         nt_open_pipe(fname, conn, req, &pnum);
 359
 360         if (req->outbuf) {
 361                 /* error reply */
 362                 return;
 363         }
 364
 365         /*
 366          * Deal with pipe return.
 367          */
 368
 369         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 370                 /* This is very strange. We
 371                  * return 50 words, but only set
 372                  * the wcnt to 42 ? It's definately
 373                  * what happens on the wire....
 374                  */
 375                 reply_outbuf(req, 50, 0);
 376                 SCVAL(req->outbuf,smb_wct,42);
 377         } else {
 378                 reply_outbuf(req, 34, 0);
 379         }
 380
 381         p = (char *)req->outbuf + smb_vwv2;
 382         p++;
 383         SSVAL(p,0,pnum);
 384         p += 2;
 385         SIVAL(p,0,FILE_WAS_OPENED);
 386         p += 4;
 387         p += 32;
 388         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 389         p += 20;
 390         /* File type. */
 391         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 392         /* Device state. */
 393         SSVAL(p,2, 0x5FF); /* ? */
 394         p += 4;
 395
 396         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 397                 p += 25;
 398                 SIVAL(p,0,FILE_GENERIC_ALL);
 399                 /*
 400                  * For pipes W2K3 seems to return
 401                  * 0x12019B next.
 402                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 403                  */
 404                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 405         }
 406
 407         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 408
 409         chain_reply(req);
 410 }
 411
 412 /****************************************************************************
 413  Reply to an NT create and X call.
 414 ****************************************************************************/
 415
 416 void reply_ntcreate_and_X(struct smb_request *req)
 417 {
 418         connection_struct *conn = req->conn;
 419         struct smb_filename *smb_fname = NULL;
 420         char *fname = NULL;
 421         uint32 flags;
 422         uint32 access_mask;
 423         uint32 file_attributes;
 424         uint32 share_access;
 425         uint32 create_disposition;
 426         uint32 create_options;
 427         uint16 root_dir_fid;
 428         uint64_t allocation_size;
 429         /* Breakout the oplock request bits so we can set the
 430            reply bits separately. */
 431         uint32 fattr=0;
 432         SMB_OFF_T file_len = 0;
 433         int info = 0;
 434         files_struct *fsp = NULL;
 435         char *p = NULL;
 436         struct timespec c_timespec;
 437         struct timespec a_timespec;
 438         struct timespec m_timespec;
 439         NTSTATUS status;
 440         int oplock_request;
 441         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 442         TALLOC_CTX *ctx = talloc_tos();
 443
 444         START_PROFILE(SMBntcreateX);
 445
 446         if (req->wct < 24) {
 447                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 448                 return;
 449         }
 450
 451         flags = IVAL(req->vwv+3, 1);
 452         access_mask = IVAL(req->vwv+7, 1);
 453         file_attributes = IVAL(req->vwv+13, 1);
 454         share_access = IVAL(req->vwv+15, 1);
 455         create_disposition = IVAL(req->vwv+17, 1);
 456         create_options = IVAL(req->vwv+19, 1);
 457         root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
 458
 459         allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
 460 #ifdef LARGE_SMB_OFF_T
 461         allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
 462 #endif
 463
 464         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 465                             STR_TERMINATE, &status);
 466
 467         if (!NT_STATUS_IS_OK(status)) {
 468                 reply_nterror(req, status);
 469                 goto out;
 470         }
 471
 472         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 473                   "file_attributes = 0x%x, share_access = 0x%x, "
 474                   "create_disposition = 0x%x create_options = 0x%x "
 475                   "root_dir_fid = 0x%x, fname = %s\n",
 476                         (unsigned int)flags,
 477                         (unsigned int)access_mask,
 478                         (unsigned int)file_attributes,
 479                         (unsigned int)share_access,
 480                         (unsigned int)create_disposition,
 481                         (unsigned int)create_options,
 482                         (unsigned int)root_dir_fid,
 483                         fname));
 484
 485         /*
 486          * we need to remove ignored bits when they come directly from the client
 487          * because we reuse some of them for internal stuff
 488          */
 489         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 490
 491         /*
 492          * If it's an IPC, use the pipe handler.
 493          */
 494
 495         if (IS_IPC(conn)) {
 496                 if (lp_nt_pipe_support()) {
 497                         do_ntcreate_pipe_open(conn, req);
 498                         goto out;
 499                 }
 500                 reply_doserror(req, ERRDOS, ERRnoaccess);
 501                 goto out;
 502         }
 503
 504         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 505         if (oplock_request) {
 506                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 507                         ? BATCH_OPLOCK : 0;
 508         }
 509
 510         status = resolve_dfspath(ctx,
 511                                 conn,
 512                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 513                                 fname,
 514                                 &fname);
 515
 516         if (!NT_STATUS_IS_OK(status)) {
 517                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 518                         reply_botherror(req,
 519                                 NT_STATUS_PATH_NOT_COVERED,
 520                                 ERRSRV, ERRbadpath);
 521                         goto out;
 522                 }
 523                 reply_nterror(req, status);
 524                 goto out;
 525         }
 526
 527         status = unix_convert(ctx, conn, fname, &smb_fname, 0);
 528         if (!NT_STATUS_IS_OK(status)) {
 529                 reply_nterror(req, status);
 530                 goto out;
 531         }
 532
 533         status = SMB_VFS_CREATE_FILE(
 534                 conn,                                   /* conn */
 535                 req,                                    /* req */
 536                 root_dir_fid,                           /* root_dir_fid */
 537                 smb_fname,                              /* fname */
 538                 access_mask,                            /* access_mask */
 539                 share_access,                           /* share_access */
 540                 create_disposition,                     /* create_disposition*/
 541                 create_options,                         /* create_options */
 542                 file_attributes,                        /* file_attributes */
 543                 oplock_request,                         /* oplock_request */
 544                 allocation_size,                        /* allocation_size */
 545                 NULL,                                   /* sd */
 546                 NULL,                                   /* ea_list */
 547                 &fsp,                                   /* result */
 548                 &info);                                 /* pinfo */
 549
 550         if (!NT_STATUS_IS_OK(status)) {
 551                 if (open_was_deferred(req->mid)) {
 552                         /* We have re-scheduled this call, no error. */
 553                         goto out;
 554                 }
 555                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
 556                         reply_botherror(req, status, ERRDOS, ERRfilexists);
 557                 }
 558                 else {
 559                         reply_nterror(req, status);
 560                 }
 561                 goto out;
 562         }
 563
 564         /*
 565          * If the caller set the extended oplock request bit
 566          * and we granted one (by whatever means) - set the
 567          * correct bit for extended oplock reply.
 568          */
 569
 570         if (oplock_request &&
 571             (lp_fake_oplocks(SNUM(conn))
 572              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 573
 574                 /*
 575                  * Exclusive oplock granted
 576                  */
 577
 578                 if (flags & REQUEST_BATCH_OPLOCK) {
 579                         oplock_granted = BATCH_OPLOCK_RETURN;
 580                 } else {
 581                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 582                 }
 583         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 584                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 585         } else {
 586                 oplock_granted = NO_OPLOCK_RETURN;
 587         }
 588
 589         file_len = smb_fname->st.st_ex_size;
 590         fattr = dos_mode(conn,fsp->fsp_name,&smb_fname->st);
 591         if (fattr == 0) {
 592                 fattr = FILE_ATTRIBUTE_NORMAL;
 593         }
 594
 595         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 596                 /* This is very strange. We
 597                  * return 50 words, but only set
 598                  * the wcnt to 42 ? It's definately
 599                  * what happens on the wire....
 600                  */
 601                 reply_outbuf(req, 50, 0);
 602                 SCVAL(req->outbuf,smb_wct,42);
 603         } else {
 604                 reply_outbuf(req, 34, 0);
 605         }
 606
 607         p = (char *)req->outbuf + smb_vwv2;
 608
 609         SCVAL(p, 0, oplock_granted);
 610
 611         p++;
 612         SSVAL(p,0,fsp->fnum);
 613         p += 2;
 614         if ((create_disposition == FILE_SUPERSEDE)
 615             && (info == FILE_WAS_OVERWRITTEN)) {
 616                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 617         } else {
 618                 SIVAL(p,0,info);
 619         }
 620         p += 4;
 621
 622         /* Create time. */
 623         c_timespec = smb_fname->st.st_ex_btime;
 624         a_timespec = smb_fname->st.st_ex_atime;
 625         m_timespec = smb_fname->st.st_ex_mtime;
 626
 627         if (lp_dos_filetime_resolution(SNUM(conn))) {
 628                 dos_filetime_timespec(&c_timespec);
 629                 dos_filetime_timespec(&a_timespec);
 630                 dos_filetime_timespec(&m_timespec);
 631         }
 632
 633         put_long_date_timespec(p, c_timespec); /* create time. */
 634         p += 8;
 635         put_long_date_timespec(p, a_timespec); /* access time */
 636         p += 8;
 637         put_long_date_timespec(p, m_timespec); /* write time */
 638         p += 8;
 639         put_long_date_timespec(p, m_timespec); /* change time */
 640         p += 8;
 641         SIVAL(p,0,fattr); /* File Attributes. */
 642         p += 4;
 643         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 644         p += 8;
 645         SOFF_T(p,0,file_len);
 646         p += 8;
 647         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 648                 SSVAL(p,2,0x7);
 649         }
 650         p += 4;
 651         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 652
 653         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 654                 uint32 perms = 0;
 655                 p += 25;
 656                 if (fsp->is_directory ||
 657                     can_write_to_file(conn, fsp->fsp_name, &smb_fname->st)) {
 658                         perms = FILE_GENERIC_ALL;
 659                 } else {
 660                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 661                 }
 662                 SIVAL(p,0,perms);
 663         }
 664
 665         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
 666                  fsp->fnum, fsp->fsp_name));
 667
 668         chain_reply(req);
 669  out:
 670         TALLOC_FREE(smb_fname);
 671         END_PROFILE(SMBntcreateX);
 672         return;
 673 }
 674
 675 /****************************************************************************
 676  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 677 ****************************************************************************/
 678
 679 static void do_nt_transact_create_pipe(connection_struct *conn,
 680                                        struct smb_request *req,
 681                                        uint16 **ppsetup, uint32 setup_count,
 682                                        char **ppparams, uint32 parameter_count,
 683                                        char **ppdata, uint32 data_count)
 684 {
 685         char *fname = NULL;
 686         char *params = *ppparams;
 687         int pnum = -1;
 688         char *p = NULL;
 689         NTSTATUS status;
 690         size_t param_len;
 691         uint32 flags;
 692         TALLOC_CTX *ctx = talloc_tos();
 693
 694         /*
 695          * Ensure minimum number of parameters sent.
 696          */
 697
 698         if(parameter_count < 54) {
 699                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 700                 reply_doserror(req, ERRDOS, ERRnoaccess);
 701                 return;
 702         }
 703
 704         flags = IVAL(params,0);
 705
 706         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
 707                         parameter_count-53, STR_TERMINATE,
 708                         &status);
 709         if (!NT_STATUS_IS_OK(status)) {
 710                 reply_nterror(req, status);
 711                 return;
 712         }
 713
 714         nt_open_pipe(fname, conn, req, &pnum);
 715
 716         if (req->outbuf) {
 717                 /* Error return */
 718                 return;
 719         }
 720
 721         /* Realloc the size of parameters and data we will return */
 722         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 723                 /* Extended response is 32 more byyes. */
 724                 param_len = 101;
 725         } else {
 726                 param_len = 69;
 727         }
 728         params = nttrans_realloc(ppparams, param_len);
 729         if(params == NULL) {
 730                 reply_doserror(req, ERRDOS, ERRnomem);
 731                 return;
 732         }
 733
 734         p = params;
 735         SCVAL(p,0,NO_OPLOCK_RETURN);
 736
 737         p += 2;
 738         SSVAL(p,0,pnum);
 739         p += 2;
 740         SIVAL(p,0,FILE_WAS_OPENED);
 741         p += 8;
 742
 743         p += 32;
 744         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 745         p += 20;
 746         /* File type. */
 747         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 748         /* Device state. */
 749         SSVAL(p,2, 0x5FF); /* ? */
 750         p += 4;
 751
 752         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 753                 p += 25;
 754                 SIVAL(p,0,FILE_GENERIC_ALL);
 755                 /*
 756                  * For pipes W2K3 seems to return
 757                  * 0x12019B next.
 758                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 759                  */
 760                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 761         }
 762
 763         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 764
 765         /* Send the required number of replies */
 766         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 767
 768         return;
 769 }
 770
 771 /****************************************************************************
 772  Internal fn to set security descriptors.
 773 ****************************************************************************/
 774
 775 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
 776                        uint32 security_info_sent)
 777 {
 778         SEC_DESC *psd = NULL;
 779         NTSTATUS status;
 780
 781         if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
 782                 return NT_STATUS_OK;
 783         }
 784
 785         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 786
 787         if (!NT_STATUS_IS_OK(status)) {
 788                 return status;
 789         }
 790
 791         if (psd->owner_sid == NULL) {
 792                 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
 793         }
 794         if (psd->group_sid == NULL) {
 795                 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
 796         }
 797
 798         /* Convert all the generic bits. */
 799         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 800         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 801
 802         if (DEBUGLEVEL >= 10) {
 803                 DEBUG(10,("set_sd for file %s\n", fsp->fsp_name ));
 804                 NDR_PRINT_DEBUG(security_descriptor, psd);
 805         }
 806
 807         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 808
 809         TALLOC_FREE(psd);
 810
 811         return status;
 812 }
 813
 814 /****************************************************************************
 815  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
 816 ****************************************************************************/
 817
 818 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
 819 {
 820         struct ea_list *ea_list_head = NULL;
 821         size_t offset = 0;
 822
 823         if (data_size < 4) {
 824                 return NULL;
 825         }
 826
 827         while (offset + 4 <= data_size) {
 828                 size_t next_offset = IVAL(pdata,offset);
 829                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
 830
 831                 if (!eal) {
 832                         return NULL;
 833                 }
 834
 835                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
 836                 if (next_offset == 0) {
 837                         break;
 838                 }
 839                 offset += next_offset;
 840         }
 841
 842         return ea_list_head;
 843 }
 844
 845 /****************************************************************************
 846  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
 847 ****************************************************************************/
 848
 849 static void call_nt_transact_create(connection_struct *conn,
 850                                     struct smb_request *req,
 851                                     uint16 **ppsetup, uint32 setup_count,
 852                                     char **ppparams, uint32 parameter_count,
 853                                     char **ppdata, uint32 data_count,
 854                                     uint32 max_data_count)
 855 {
 856         struct smb_filename *smb_fname = NULL;
 857         char *fname = NULL;
 858         char *params = *ppparams;
 859         char *data = *ppdata;
 860         /* Breakout the oplock request bits so we can set the reply bits separately. */
 861         uint32 fattr=0;
 862         SMB_OFF_T file_len = 0;
 863         int info = 0;
 864         files_struct *fsp = NULL;
 865         char *p = NULL;
 866         uint32 flags;
 867         uint32 access_mask;
 868         uint32 file_attributes;
 869         uint32 share_access;
 870         uint32 create_disposition;
 871         uint32 create_options;
 872         uint32 sd_len;
 873         struct security_descriptor *sd = NULL;
 874         uint32 ea_len;
 875         uint16 root_dir_fid;
 876         struct timespec c_timespec;
 877         struct timespec a_timespec;
 878         struct timespec m_timespec;
 879         struct ea_list *ea_list = NULL;
 880         NTSTATUS status;
 881         size_t param_len;
 882         uint64_t allocation_size;
 883         int oplock_request;
 884         uint8_t oplock_granted;
 885         TALLOC_CTX *ctx = talloc_tos();
 886
 887         DEBUG(5,("call_nt_transact_create\n"));
 888
 889         /*
 890          * If it's an IPC, use the pipe handler.
 891          */
 892
 893         if (IS_IPC(conn)) {
 894                 if (lp_nt_pipe_support()) {
 895                         do_nt_transact_create_pipe(
 896                                 conn, req,
 897                                 ppsetup, setup_count,
 898                                 ppparams, parameter_count,
 899                                 ppdata, data_count);
 900                         goto out;
 901                 }
 902                 reply_doserror(req, ERRDOS, ERRnoaccess);
 903                 goto out;
 904         }
 905
 906         /*
 907          * Ensure minimum number of parameters sent.
 908          */
 909
 910         if(parameter_count < 54) {
 911                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 912                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 913                 goto out;
 914         }
 915
 916         flags = IVAL(params,0);
 917         access_mask = IVAL(params,8);
 918         file_attributes = IVAL(params,20);
 919         share_access = IVAL(params,24);
 920         create_disposition = IVAL(params,28);
 921         create_options = IVAL(params,32);
 922         sd_len = IVAL(params,36);
 923         ea_len = IVAL(params,40);
 924         root_dir_fid = (uint16)IVAL(params,4);
 925         allocation_size = (uint64_t)IVAL(params,12);
 926 #ifdef LARGE_SMB_OFF_T
 927         allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
 928 #endif
 929
 930         /*
 931          * we need to remove ignored bits when they come directly from the client
 932          * because we reuse some of them for internal stuff
 933          */
 934         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 935
 936         /* Ensure the data_len is correct for the sd and ea values given. */
 937         if ((ea_len + sd_len > data_count)
 938             || (ea_len > data_count) || (sd_len > data_count)
 939             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
 940                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
 941                            "%u, data_count = %u\n", (unsigned int)ea_len,
 942                            (unsigned int)sd_len, (unsigned int)data_count));
 943                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 944                 goto out;
 945         }
 946
 947         if (sd_len) {
 948                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
 949                            sd_len));
 950
 951                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
 952                                              &sd);
 953                 if (!NT_STATUS_IS_OK(status)) {
 954                         DEBUG(10, ("call_nt_transact_create: "
 955                                    "unmarshall_sec_desc failed: %s\n",
 956                                    nt_errstr(status)));
 957                         reply_nterror(req, status);
 958                         goto out;
 959                 }
 960         }
 961
 962         if (ea_len) {
 963                 if (!lp_ea_support(SNUM(conn))) {
 964                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
 965                                    "EA's not supported.\n",
 966                                    (unsigned int)ea_len));
 967                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
 968                         goto out;
 969                 }
 970
 971                 if (ea_len < 10) {
 972                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
 973                                   "too small (should be more than 10)\n",
 974                                   (unsigned int)ea_len ));
 975                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 976                         goto out;
 977                 }
 978
 979                 /* We have already checked that ea_len <= data_count here. */
 980                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
 981                                                ea_len);
 982                 if (ea_list == NULL) {
 983                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 984                         goto out;
 985                 }
 986         }
 987
 988         srvstr_get_path(ctx, params, req->flags2, &fname,
 989                         params+53, parameter_count-53,
 990                         STR_TERMINATE, &status);
 991         if (!NT_STATUS_IS_OK(status)) {
 992                 reply_nterror(req, status);
 993                 goto out;
 994         }
 995
 996         status = resolve_dfspath(ctx,
 997                                 conn,
 998                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 999                                 fname,
1000                                 &fname);
1001
1002         if (!NT_STATUS_IS_OK(status)) {
1003                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1004                         reply_botherror(req,
1005                                 NT_STATUS_PATH_NOT_COVERED,
1006                                 ERRSRV, ERRbadpath);
1007                         goto out;
1008                 }
1009                 reply_nterror(req, status);
1010                 goto out;
1011         }
1012
1013         status = unix_convert(ctx, conn, fname, &smb_fname, 0);
1014         if (!NT_STATUS_IS_OK(status)) {
1015                 reply_nterror(req, status);
1016                 goto out;
1017         }
1018
1019         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1020         if (oplock_request) {
1021                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1022                         ? BATCH_OPLOCK : 0;
1023         }
1024
1025         status = SMB_VFS_CREATE_FILE(
1026                 conn,                                   /* conn */
1027                 req,                                    /* req */
1028                 root_dir_fid,                           /* root_dir_fid */
1029                 smb_fname,                              /* fname */
1030                 access_mask,                            /* access_mask */
1031                 share_access,                           /* share_access */
1032                 create_disposition,                     /* create_disposition*/
1033                 create_options,                         /* create_options */
1034                 file_attributes,                        /* file_attributes */
1035                 oplock_request,                         /* oplock_request */
1036                 allocation_size,                        /* allocation_size */
1037                 sd,                                     /* sd */
1038                 ea_list,                                /* ea_list */
1039                 &fsp,                                   /* result */
1040                 &info);                                 /* pinfo */
1041
1042         if(!NT_STATUS_IS_OK(status)) {
1043                 if (open_was_deferred(req->mid)) {
1044                         /* We have re-scheduled this call, no error. */
1045                         return;
1046                 }
1047                 reply_openerror(req, status);
1048                 goto out;
1049         }
1050
1051         /*
1052          * If the caller set the extended oplock request bit
1053          * and we granted one (by whatever means) - set the
1054          * correct bit for extended oplock reply.
1055          */
1056
1057         if (oplock_request &&
1058             (lp_fake_oplocks(SNUM(conn))
1059              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1060
1061                 /*
1062                  * Exclusive oplock granted
1063                  */
1064
1065                 if (flags & REQUEST_BATCH_OPLOCK) {
1066                         oplock_granted = BATCH_OPLOCK_RETURN;
1067                 } else {
1068                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1069                 }
1070         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1071                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1072         } else {
1073                 oplock_granted = NO_OPLOCK_RETURN;
1074         }
1075
1076         file_len = smb_fname->st.st_ex_size;
1077         fattr = dos_mode(conn, fsp->fsp_name, &smb_fname->st);
1078         if (fattr == 0) {
1079                 fattr = FILE_ATTRIBUTE_NORMAL;
1080         }
1081
1082         /* Realloc the size of parameters and data we will return */
1083         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1084                 /* Extended response is 32 more byyes. */
1085                 param_len = 101;
1086         } else {
1087                 param_len = 69;
1088         }
1089         params = nttrans_realloc(ppparams, param_len);
1090         if(params == NULL) {
1091                 reply_doserror(req, ERRDOS, ERRnomem);
1092                 goto out;
1093         }
1094
1095         p = params;
1096         SCVAL(p, 0, oplock_granted);
1097
1098         p += 2;
1099         SSVAL(p,0,fsp->fnum);
1100         p += 2;
1101         if ((create_disposition == FILE_SUPERSEDE)
1102             && (info == FILE_WAS_OVERWRITTEN)) {
1103                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1104         } else {
1105                 SIVAL(p,0,info);
1106         }
1107         p += 8;
1108
1109         /* Create time. */
1110         c_timespec = smb_fname->st.st_ex_btime;
1111         a_timespec = smb_fname->st.st_ex_atime;
1112         m_timespec = smb_fname->st.st_ex_mtime;
1113
1114         if (lp_dos_filetime_resolution(SNUM(conn))) {
1115                 dos_filetime_timespec(&c_timespec);
1116                 dos_filetime_timespec(&a_timespec);
1117                 dos_filetime_timespec(&m_timespec);
1118         }
1119
1120         put_long_date_timespec(p, c_timespec); /* create time. */
1121         p += 8;
1122         put_long_date_timespec(p, a_timespec); /* access time */
1123         p += 8;
1124         put_long_date_timespec(p, m_timespec); /* write time */
1125         p += 8;
1126         put_long_date_timespec(p, m_timespec); /* change time */
1127         p += 8;
1128         SIVAL(p,0,fattr); /* File Attributes. */
1129         p += 4;
1130         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1131         p += 8;
1132         SOFF_T(p,0,file_len);
1133         p += 8;
1134         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1135                 SSVAL(p,2,0x7);
1136         }
1137         p += 4;
1138         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1139
1140         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1141                 uint32 perms = 0;
1142                 p += 25;
1143                 if (fsp->is_directory ||
1144                     can_write_to_file(conn, fsp->fsp_name, &smb_fname->st)) {
1145                         perms = FILE_GENERIC_ALL;
1146                 } else {
1147                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1148                 }
1149                 SIVAL(p,0,perms);
1150         }
1151
1152         DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1153
1154         /* Send the required number of replies */
1155         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1156  out:
1157         TALLOC_FREE(smb_fname);
1158         return;
1159 }
1160
1161 /****************************************************************************
1162  Reply to a NT CANCEL request.
1163  conn POINTER CAN BE NULL HERE !
1164 ****************************************************************************/
1165
1166 void reply_ntcancel(struct smb_request *req)
1167 {
1168         /*
1169          * Go through and cancel any pending change notifies.
1170          */
1171
1172         START_PROFILE(SMBntcancel);
1173         srv_cancel_sign_response(smbd_server_conn);
1174         remove_pending_change_notify_requests_by_mid(req->mid);
1175         remove_pending_lock_requests_by_mid(req->mid);
1176
1177         DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1178
1179         END_PROFILE(SMBntcancel);
1180         return;
1181 }
1182
1183 /****************************************************************************
1184  Copy a file.
1185 ****************************************************************************/
1186
1187 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1188                                 connection_struct *conn,
1189                                 struct smb_request *req,
1190                                 const char *oldname_in,
1191                                 const char *newname_in,
1192                                 uint32 attrs)
1193 {
1194         struct smb_filename *smb_fname_src = NULL;
1195         struct smb_filename *smb_fname_dst = NULL;
1196         char *oldname = NULL;
1197         char *newname = NULL;
1198         files_struct *fsp1,*fsp2;
1199         uint32 fattr;
1200         int info;
1201         SMB_OFF_T ret=-1;
1202         NTSTATUS status = NT_STATUS_OK;
1203         char *parent;
1204
1205         if (!CAN_WRITE(conn)) {
1206                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1207                 goto out;
1208         }
1209
1210         status = unix_convert(ctx, conn, oldname_in, &smb_fname_src, 0);
1211         if (!NT_STATUS_IS_OK(status)) {
1212                 goto out;
1213         }
1214
1215         status = check_name(conn, smb_fname_src->base_name);
1216         if (!NT_STATUS_IS_OK(status)) {
1217                 goto out;
1218         }
1219
1220         /* Source must already exist. */
1221         if (!VALID_STAT(smb_fname_src->st)) {
1222                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1223                 goto out;
1224         }
1225
1226         status = get_full_smb_filename(ctx, smb_fname_src, &oldname);
1227         if (!NT_STATUS_IS_OK(status)) {
1228                 goto out;
1229         }
1230
1231         /* Ensure attributes match. */
1232         fattr = dos_mode(conn, oldname, &smb_fname_src->st);
1233         if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1234                 status = NT_STATUS_NO_SUCH_FILE;
1235                 goto out;
1236         }
1237
1238         status = unix_convert(ctx, conn, newname_in, &smb_fname_dst, 0);
1239         if (!NT_STATUS_IS_OK(status)) {
1240                 goto out;
1241         }
1242
1243         status = check_name(conn, smb_fname_dst->base_name);
1244         if (!NT_STATUS_IS_OK(status)) {
1245                 goto out;
1246         }
1247
1248         /* Disallow if dst file already exists. */
1249         if (VALID_STAT(smb_fname_dst->st)) {
1250                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1251                 goto out;
1252         }
1253
1254         /* No links from a directory. */
1255         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1256                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1257                 goto out;
1258         }
1259
1260         /* Ensure this is within the share. */
1261         status = check_reduced_name(conn, smb_fname_src->base_name);
1262         if (!NT_STATUS_IS_OK(status)) {
1263                 goto out;
1264         }
1265
1266         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1267                   smb_fname_str_dbg(smb_fname_src),
1268                   smb_fname_str_dbg(smb_fname_dst)));
1269
1270         status = SMB_VFS_CREATE_FILE(
1271                 conn,                                   /* conn */
1272                 req,                                    /* req */
1273                 0,                                      /* root_dir_fid */
1274                 smb_fname_src,                          /* fname */
1275                 FILE_READ_DATA,                         /* access_mask */
1276                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1277                     FILE_SHARE_DELETE),
1278                 FILE_OPEN,                              /* create_disposition*/
1279                 0,                                      /* create_options */
1280                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1281                 NO_OPLOCK,                              /* oplock_request */
1282                 0,                                      /* allocation_size */
1283                 NULL,                                   /* sd */
1284                 NULL,                                   /* ea_list */
1285                 &fsp1,                                  /* result */
1286                 &info);                                 /* pinfo */
1287
1288         if (!NT_STATUS_IS_OK(status)) {
1289                 goto out;
1290         }
1291
1292         status = SMB_VFS_CREATE_FILE(
1293                 conn,                                   /* conn */
1294                 req,                                    /* req */
1295                 0,                                      /* root_dir_fid */
1296                 smb_fname_dst,                          /* fname */
1297                 FILE_WRITE_DATA,                        /* access_mask */
1298                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1299                     FILE_SHARE_DELETE),
1300                 FILE_CREATE,                            /* create_disposition*/
1301                 0,                                      /* create_options */
1302                 fattr,                                  /* file_attributes */
1303                 NO_OPLOCK,                              /* oplock_request */
1304                 0,                                      /* allocation_size */
1305                 NULL,                                   /* sd */
1306                 NULL,                                   /* ea_list */
1307                 &fsp2,                                  /* result */
1308                 &info);                                 /* pinfo */
1309
1310         if (!NT_STATUS_IS_OK(status)) {
1311                 close_file(NULL, fsp1, ERROR_CLOSE);
1312                 goto out;
1313         }
1314
1315         if (smb_fname_src->st.st_ex_size) {
1316                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1317         }
1318
1319         /*
1320          * As we are opening fsp1 read-only we only expect
1321          * an error on close on fsp2 if we are out of space.
1322          * Thus we don't look at the error return from the
1323          * close of fsp1.
1324          */
1325         close_file(NULL, fsp1, NORMAL_CLOSE);
1326
1327         /* Ensure the modtime is set correctly on the destination file. */
1328         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1329
1330         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1331
1332         status = get_full_smb_filename(ctx, smb_fname_dst, &newname);
1333         if (!NT_STATUS_IS_OK(status)) {
1334                 goto out;
1335         }
1336
1337         /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1338            creates the file. This isn't the correct thing to do in the copy
1339            case. JRA */
1340         if (!parent_dirname(talloc_tos(), newname, &parent, NULL)) {
1341                 status = NT_STATUS_NO_MEMORY;
1342                 goto out;
1343         }
1344         file_set_dosmode(conn, newname, fattr, &smb_fname_dst->st, parent,
1345                          false);
1346         TALLOC_FREE(parent);
1347
1348         if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1349                 status = NT_STATUS_DISK_FULL;
1350                 goto out;
1351         }
1352  out:
1353         if (!NT_STATUS_IS_OK(status)) {
1354                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1355                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1356                         smb_fname_str_dbg(smb_fname_dst)));
1357         }
1358
1359         TALLOC_FREE(smb_fname_src);
1360         TALLOC_FREE(smb_fname_dst);
1361         TALLOC_FREE(oldname);
1362         TALLOC_FREE(newname);
1363
1364         return status;
1365 }
1366
1367 /****************************************************************************
1368  Reply to a NT rename request.
1369 ****************************************************************************/
1370
1371 void reply_ntrename(struct smb_request *req)
1372 {
1373         connection_struct *conn = req->conn;
1374         char *oldname = NULL;
1375         char *newname = NULL;
1376         const char *p;
1377         NTSTATUS status;
1378         bool src_has_wcard = False;
1379         bool dest_has_wcard = False;
1380         uint32 attrs;
1381         uint16 rename_type;
1382         TALLOC_CTX *ctx = talloc_tos();
1383
1384         START_PROFILE(SMBntrename);
1385
1386         if (req->wct < 4) {
1387                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1388                 END_PROFILE(SMBntrename);
1389                 return;
1390         }
1391
1392         attrs = SVAL(req->vwv+0, 0);
1393         rename_type = SVAL(req->vwv+1, 0);
1394
1395         p = (const char *)req->buf + 1;
1396         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1397                                        &status, &src_has_wcard);
1398         if (!NT_STATUS_IS_OK(status)) {
1399                 reply_nterror(req, status);
1400                 END_PROFILE(SMBntrename);
1401                 return;
1402         }
1403
1404         if (ms_has_wild(oldname)) {
1405                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1406                 END_PROFILE(SMBntrename);
1407                 return;
1408         }
1409
1410         p++;
1411         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1412                                        &status, &dest_has_wcard);
1413         if (!NT_STATUS_IS_OK(status)) {
1414                 reply_nterror(req, status);
1415                 END_PROFILE(SMBntrename);
1416                 return;
1417         }
1418
1419         status = resolve_dfspath(ctx, conn,
1420                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1421                                 oldname,
1422                                 &oldname);
1423         if (!NT_STATUS_IS_OK(status)) {
1424                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1425                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1426                                         ERRSRV, ERRbadpath);
1427                         END_PROFILE(SMBntrename);
1428                         return;
1429                 }
1430                 reply_nterror(req, status);
1431                 END_PROFILE(SMBntrename);
1432                 return;
1433         }
1434
1435         status = resolve_dfspath(ctx, conn,
1436                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1437                                 newname,
1438                                 &newname);
1439         if (!NT_STATUS_IS_OK(status)) {
1440                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1441                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1442                                         ERRSRV, ERRbadpath);
1443                         END_PROFILE(SMBntrename);
1444                         return;
1445                 }
1446                 reply_nterror(req, status);
1447                 END_PROFILE(SMBntrename);
1448                 return;
1449         }
1450
1451         /* The new name must begin with a ':' if the old name is a stream. */
1452         if (is_ntfs_stream_name(oldname) && (newname[0] != ':')) {
1453                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1454                 END_PROFILE(SMBntrename);
1455                 return;
1456         }
1457
1458         DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1459
1460         switch(rename_type) {
1461                 case RENAME_FLAG_RENAME:
1462                         status = rename_internals(ctx, conn, req, oldname,
1463                                         newname, attrs, False, src_has_wcard,
1464                                         dest_has_wcard, DELETE_ACCESS);
1465                         break;
1466                 case RENAME_FLAG_HARD_LINK:
1467                         if (src_has_wcard || dest_has_wcard) {
1468                                 /* No wildcards. */
1469                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1470                         } else {
1471                                 status = hardlink_internals(ctx,
1472                                                 conn,
1473                                                 oldname,
1474                                                 newname);
1475                         }
1476                         break;
1477                 case RENAME_FLAG_COPY:
1478                         if (src_has_wcard || dest_has_wcard) {
1479                                 /* No wildcards. */
1480                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1481                         } else {
1482                                 status = copy_internals(ctx, conn, req, oldname,
1483                                                         newname, attrs);
1484                         }
1485                         break;
1486                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1487                         status = NT_STATUS_INVALID_PARAMETER;
1488                         break;
1489                 default:
1490                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1491                         break;
1492         }
1493
1494         if (!NT_STATUS_IS_OK(status)) {
1495                 if (open_was_deferred(req->mid)) {
1496                         /* We have re-scheduled this call. */
1497                         END_PROFILE(SMBntrename);
1498                         return;
1499                 }
1500
1501                 reply_nterror(req, status);
1502                 END_PROFILE(SMBntrename);
1503                 return;
1504         }
1505
1506         reply_outbuf(req, 0, 0);
1507
1508         END_PROFILE(SMBntrename);
1509         return;
1510 }
1511
1512 /****************************************************************************
1513  Reply to a notify change - queue the request and
1514  don't allow a directory to be opened.
1515 ****************************************************************************/
1516
1517 static void call_nt_transact_notify_change(connection_struct *conn,
1518                                            struct smb_request *req,
1519                                            uint16 **ppsetup,
1520                                            uint32 setup_count,
1521                                            char **ppparams,
1522                                            uint32 parameter_count,
1523                                            char **ppdata, uint32 data_count,
1524                                            uint32 max_data_count,
1525                                            uint32 max_param_count)
1526 {
1527         uint16 *setup = *ppsetup;
1528         files_struct *fsp;
1529         uint32 filter;
1530         NTSTATUS status;
1531         bool recursive;
1532
1533         if(setup_count < 6) {
1534                 reply_doserror(req, ERRDOS, ERRbadfunc);
1535                 return;
1536         }
1537
1538         fsp = file_fsp(req, SVAL(setup,4));
1539         filter = IVAL(setup, 0);
1540         recursive = (SVAL(setup, 6) != 0) ? True : False;
1541
1542         DEBUG(3,("call_nt_transact_notify_change\n"));
1543
1544         if(!fsp) {
1545                 reply_doserror(req, ERRDOS, ERRbadfid);
1546                 return;
1547         }
1548
1549         {
1550                 char *filter_string;
1551
1552                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1553                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1554                         return;
1555                 }
1556
1557                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1558                          "called on %s, filter = %s, recursive = %d\n",
1559                          fsp->fsp_name, filter_string, recursive));
1560
1561                 TALLOC_FREE(filter_string);
1562         }
1563
1564         if((!fsp->is_directory) || (conn != fsp->conn)) {
1565                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1566                 return;
1567         }
1568
1569         if (fsp->notify == NULL) {
1570
1571                 status = change_notify_create(fsp, filter, recursive);
1572
1573                 if (!NT_STATUS_IS_OK(status)) {
1574                         DEBUG(10, ("change_notify_create returned %s\n",
1575                                    nt_errstr(status)));
1576                         reply_nterror(req, status);
1577                         return;
1578                 }
1579         }
1580
1581         if (fsp->notify->num_changes != 0) {
1582
1583                 /*
1584                  * We've got changes pending, respond immediately
1585                  */
1586
1587                 /*
1588                  * TODO: write a torture test to check the filtering behaviour
1589                  * here.
1590                  */
1591
1592                 change_notify_reply(fsp->conn, req, max_param_count,
1593                                     fsp->notify);
1594
1595                 /*
1596                  * change_notify_reply() above has independently sent its
1597                  * results
1598                  */
1599                 return;
1600         }
1601
1602         /*
1603          * No changes pending, queue the request
1604          */
1605
1606         status = change_notify_add_request(req,
1607                         max_param_count,
1608                         filter,
1609                         recursive, fsp);
1610         if (!NT_STATUS_IS_OK(status)) {
1611                 reply_nterror(req, status);
1612         }
1613         return;
1614 }
1615
1616 /****************************************************************************
1617  Reply to an NT transact rename command.
1618 ****************************************************************************/
1619
1620 static void call_nt_transact_rename(connection_struct *conn,
1621                                     struct smb_request *req,
1622                                     uint16 **ppsetup, uint32 setup_count,
1623                                     char **ppparams, uint32 parameter_count,
1624                                     char **ppdata, uint32 data_count,
1625                                     uint32 max_data_count)
1626 {
1627         char *params = *ppparams;
1628         char *new_name = NULL;
1629         files_struct *fsp = NULL;
1630         bool dest_has_wcard = False;
1631         NTSTATUS status;
1632         TALLOC_CTX *ctx = talloc_tos();
1633
1634         if(parameter_count < 5) {
1635                 reply_doserror(req, ERRDOS, ERRbadfunc);
1636                 return;
1637         }
1638
1639         fsp = file_fsp(req, SVAL(params, 0));
1640         if (!check_fsp(conn, req, fsp)) {
1641                 return;
1642         }
1643         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1644                               parameter_count - 4,
1645                               STR_TERMINATE, &status, &dest_has_wcard);
1646         if (!NT_STATUS_IS_OK(status)) {
1647                 reply_nterror(req, status);
1648                 return;
1649         }
1650
1651         /*
1652          * W2K3 ignores this request as the RAW-RENAME test
1653          * demonstrates, so we do.
1654          */
1655         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1656
1657         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1658                  fsp->fsp_name, new_name));
1659
1660         return;
1661 }
1662
1663 /******************************************************************************
1664  Fake up a completely empty SD.
1665 *******************************************************************************/
1666
1667 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1668 {
1669         size_t sd_size;
1670
1671         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1672         if(!*ppsd) {
1673                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1674                 return NT_STATUS_NO_MEMORY;
1675         }
1676
1677         return NT_STATUS_OK;
1678 }
1679
1680 /****************************************************************************
1681  Reply to query a security descriptor.
1682 ****************************************************************************/
1683
1684 static void call_nt_transact_query_security_desc(connection_struct *conn,
1685                                                  struct smb_request *req,
1686                                                  uint16 **ppsetup,
1687                                                  uint32 setup_count,
1688                                                  char **ppparams,
1689                                                  uint32 parameter_count,
1690                                                  char **ppdata,
1691                                                  uint32 data_count,
1692                                                  uint32 max_data_count)
1693 {
1694         char *params = *ppparams;
1695         char *data = *ppdata;
1696         SEC_DESC *psd = NULL;
1697         size_t sd_size;
1698         uint32 security_info_wanted;
1699         files_struct *fsp = NULL;
1700         NTSTATUS status;
1701         DATA_BLOB blob;
1702
1703         if(parameter_count < 8) {
1704                 reply_doserror(req, ERRDOS, ERRbadfunc);
1705                 return;
1706         }
1707
1708         fsp = file_fsp(req, SVAL(params,0));
1709         if(!fsp) {
1710                 reply_doserror(req, ERRDOS, ERRbadfid);
1711                 return;
1712         }
1713
1714         security_info_wanted = IVAL(params,4);
1715
1716         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1717                         (unsigned int)security_info_wanted ));
1718
1719         params = nttrans_realloc(ppparams, 4);
1720         if(params == NULL) {
1721                 reply_doserror(req, ERRDOS, ERRnomem);
1722                 return;
1723         }
1724
1725         /*
1726          * Get the permissions to return.
1727          */
1728
1729         if (!lp_nt_acl_support(SNUM(conn))) {
1730                 status = get_null_nt_acl(talloc_tos(), &psd);
1731         } else {
1732                 status = SMB_VFS_FGET_NT_ACL(
1733                         fsp, security_info_wanted, &psd);
1734         }
1735         if (!NT_STATUS_IS_OK(status)) {
1736                 reply_nterror(req, status);
1737                 return;
1738         }
1739
1740         /* If the SACL/DACL is NULL, but was requested, we mark that it is
1741          * present in the reply to match Windows behavior */
1742         if (psd->sacl == NULL &&
1743             security_info_wanted & SACL_SECURITY_INFORMATION)
1744                 psd->type |= SEC_DESC_SACL_PRESENT;
1745         if (psd->dacl == NULL &&
1746             security_info_wanted & DACL_SECURITY_INFORMATION)
1747                 psd->type |= SEC_DESC_DACL_PRESENT;
1748
1749         sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1750
1751         DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1752
1753         if (DEBUGLEVEL >= 10) {
1754                 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n", fsp->fsp_name));
1755                 NDR_PRINT_DEBUG(security_descriptor, psd);
1756         }
1757
1758         SIVAL(params,0,(uint32)sd_size);
1759
1760         if (max_data_count < sd_size) {
1761                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1762                                 params, 4, *ppdata, 0);
1763                 return;
1764         }
1765
1766         /*
1767          * Allocate the data we will point this at.
1768          */
1769
1770         data = nttrans_realloc(ppdata, sd_size);
1771         if(data == NULL) {
1772                 reply_doserror(req, ERRDOS, ERRnomem);
1773                 return;
1774         }
1775
1776         status = marshall_sec_desc(talloc_tos(), psd,
1777                                    &blob.data, &blob.length);
1778
1779         if (!NT_STATUS_IS_OK(status)) {
1780                 reply_nterror(req, status);
1781                 return;
1782         }
1783
1784         SMB_ASSERT(sd_size == blob.length);
1785         memcpy(data, blob.data, sd_size);
1786
1787         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1788
1789         return;
1790 }
1791
1792 /****************************************************************************
1793  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1794 ****************************************************************************/
1795
1796 static void call_nt_transact_set_security_desc(connection_struct *conn,
1797                                                struct smb_request *req,
1798                                                uint16 **ppsetup,
1799                                                uint32 setup_count,
1800                                                char **ppparams,
1801                                                uint32 parameter_count,
1802                                                char **ppdata,
1803                                                uint32 data_count,
1804                                                uint32 max_data_count)
1805 {
1806         char *params= *ppparams;
1807         char *data = *ppdata;
1808         files_struct *fsp = NULL;
1809         uint32 security_info_sent = 0;
1810         NTSTATUS status;
1811
1812         if(parameter_count < 8) {
1813                 reply_doserror(req, ERRDOS, ERRbadfunc);
1814                 return;
1815         }
1816
1817         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1818                 reply_doserror(req, ERRDOS, ERRbadfid);
1819                 return;
1820         }
1821
1822         if(!lp_nt_acl_support(SNUM(conn))) {
1823                 goto done;
1824         }
1825
1826         security_info_sent = IVAL(params,4);
1827
1828         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1829                 (unsigned int)security_info_sent ));
1830
1831         if (data_count == 0) {
1832                 reply_doserror(req, ERRDOS, ERRnoaccess);
1833                 return;
1834         }
1835
1836         status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1837
1838         if (!NT_STATUS_IS_OK(status)) {
1839                 reply_nterror(req, status);
1840                 return;
1841         }
1842
1843   done:
1844         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1845         return;
1846 }
1847
1848 /****************************************************************************
1849  Reply to NT IOCTL
1850 ****************************************************************************/
1851
1852 static void call_nt_transact_ioctl(connection_struct *conn,
1853                                    struct smb_request *req,
1854                                    uint16 **ppsetup, uint32 setup_count,
1855                                    char **ppparams, uint32 parameter_count,
1856                                    char **ppdata, uint32 data_count,
1857                                    uint32 max_data_count)
1858 {
1859         uint32 function;
1860         uint16 fidnum;
1861         files_struct *fsp;
1862         uint8 isFSctl;
1863         uint8 compfilter;
1864         char *pdata = *ppdata;
1865
1866         if (setup_count != 8) {
1867                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1868                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1869                 return;
1870         }
1871
1872         function = IVAL(*ppsetup, 0);
1873         fidnum = SVAL(*ppsetup, 4);
1874         isFSctl = CVAL(*ppsetup, 6);
1875         compfilter = CVAL(*ppsetup, 7);
1876
1877         DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1878                  function, fidnum, isFSctl, compfilter));
1879
1880         fsp=file_fsp(req, fidnum);
1881         /* this check is done in each implemented function case for now
1882            because I don't want to break anything... --metze
1883         FSP_BELONGS_CONN(fsp,conn);*/
1884
1885         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
1886
1887         switch (function) {
1888         case FSCTL_SET_SPARSE:
1889                 /* pretend this succeeded - tho strictly we should
1890                    mark the file sparse (if the local fs supports it)
1891                    so we can know if we need to pre-allocate or not */
1892
1893                 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1894                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1895                 return;
1896
1897         case FSCTL_CREATE_OR_GET_OBJECT_ID:
1898         {
1899                 unsigned char objid[16];
1900
1901                 /* This should return the object-id on this file.
1902                  * I think I'll make this be the inode+dev. JRA.
1903                  */
1904
1905                 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1906
1907                 if (!fsp_belongs_conn(conn, req, fsp)) {
1908                         return;
1909                 }
1910
1911                 data_count = 64;
1912                 pdata = nttrans_realloc(ppdata, data_count);
1913                 if (pdata == NULL) {
1914                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1915                         return;
1916                 }
1917
1918                 /* For backwards compatibility only store the dev/inode. */
1919                 push_file_id_16(pdata, &fsp->file_id);
1920                 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1921                 push_file_id_16(pdata+32, &fsp->file_id);
1922                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1923                                 pdata, data_count);
1924                 return;
1925         }
1926
1927         case FSCTL_GET_REPARSE_POINT:
1928                 /* pretend this fail - my winXP does it like this
1929                  * --metze
1930                  */
1931
1932                 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1933                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1934                 return;
1935
1936         case FSCTL_SET_REPARSE_POINT:
1937                 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1938                  * --metze
1939                  */
1940
1941                 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1942                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1943                 return;
1944
1945         case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1946         {
1947                 /*
1948                  * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1949                  * and return their volume names.  If max_data_count is 16, then it is just
1950                  * asking for the number of volumes and length of the combined names.
1951                  *
1952                  * pdata is the data allocated by our caller, but that uses
1953                  * total_data_count (which is 0 in our case) rather than max_data_count.
1954                  * Allocate the correct amount and return the pointer to let
1955                  * it be deallocated when we return.
1956                  */
1957                 SHADOW_COPY_DATA *shadow_data = NULL;
1958                 TALLOC_CTX *shadow_mem_ctx = NULL;
1959                 bool labels = False;
1960                 uint32 labels_data_count = 0;
1961                 uint32 i;
1962                 char *cur_pdata;
1963
1964                 if (!fsp_belongs_conn(conn, req, fsp)) {
1965                         return;
1966                 }
1967
1968                 if (max_data_count < 16) {
1969                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1970                                 max_data_count));
1971                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1972                         return;
1973                 }
1974
1975                 if (max_data_count > 16) {
1976                         labels = True;
1977                 }
1978
1979                 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1980                 if (shadow_mem_ctx == NULL) {
1981                         DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1982                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1983                         return;
1984                 }
1985
1986                 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1987                 if (shadow_data == NULL) {
1988                         DEBUG(0,("TALLOC_ZERO() failed!\n"));
1989                         talloc_destroy(shadow_mem_ctx);
1990                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1991                         return;
1992                 }
1993
1994                 shadow_data->mem_ctx = shadow_mem_ctx;
1995
1996                 /*
1997                  * Call the VFS routine to actually do the work.
1998                  */
1999                 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2000                         talloc_destroy(shadow_data->mem_ctx);
2001                         if (errno == ENOSYS) {
2002                                 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2003                                         conn->connectpath));
2004                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2005                                 return;
2006                         } else {
2007                                 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2008                                         conn->connectpath));
2009                                 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2010                                 return;
2011                         }
2012                 }
2013
2014                 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2015
2016                 if (!labels) {
2017                         data_count = 16;
2018                 } else {
2019                         data_count = 12+labels_data_count+4;
2020                 }
2021
2022                 if (max_data_count<data_count) {
2023                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2024                                 max_data_count,data_count));
2025                         talloc_destroy(shadow_data->mem_ctx);
2026                         reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2027                         return;
2028                 }
2029
2030                 pdata = nttrans_realloc(ppdata, data_count);
2031                 if (pdata == NULL) {
2032                         talloc_destroy(shadow_data->mem_ctx);
2033                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2034                         return;
2035                 }
2036
2037                 cur_pdata = pdata;
2038
2039                 /* num_volumes 4 bytes */
2040                 SIVAL(pdata,0,shadow_data->num_volumes);
2041
2042                 if (labels) {
2043                         /* num_labels 4 bytes */
2044                         SIVAL(pdata,4,shadow_data->num_volumes);
2045                 }
2046
2047                 /* needed_data_count 4 bytes */
2048                 SIVAL(pdata,8,labels_data_count);
2049
2050                 cur_pdata+=12;
2051
2052                 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2053                         shadow_data->num_volumes,fsp->fsp_name));
2054                 if (labels && shadow_data->labels) {
2055                         for (i=0;i<shadow_data->num_volumes;i++) {
2056                                 srvstr_push(pdata, req->flags2,
2057                                             cur_pdata, shadow_data->labels[i],
2058                                             2*sizeof(SHADOW_COPY_LABEL),
2059                                             STR_UNICODE|STR_TERMINATE);
2060                                 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2061                                 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2062                         }
2063                 }
2064
2065                 talloc_destroy(shadow_data->mem_ctx);
2066
2067                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2068                                 pdata, data_count);
2069
2070                 return;
2071         }
2072
2073         case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2074         {
2075                 /* pretend this succeeded -
2076                  *
2077                  * we have to send back a list with all files owned by this SID
2078                  *
2079                  * but I have to check that --metze
2080                  */
2081                 DOM_SID sid;
2082                 uid_t uid;
2083                 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2084
2085                 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2086
2087                 if (!fsp_belongs_conn(conn, req, fsp)) {
2088                         return;
2089                 }
2090
2091                 /* unknown 4 bytes: this is not the length of the sid :-(  */
2092                 /*unknown = IVAL(pdata,0);*/
2093
2094                 sid_parse(pdata+4,sid_len,&sid);
2095                 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2096
2097                 if (!sid_to_uid(&sid, &uid)) {
2098                         DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2099                                  sid_string_dbg(&sid),
2100                                  (unsigned long)sid_len));
2101                         uid = (-1);
2102                 }
2103
2104                 /* we can take a look at the find source :-)
2105                  *
2106                  * find ./ -uid $uid  -name '*'   is what we need here
2107                  *
2108                  *
2109                  * and send 4bytes len and then NULL terminated unicode strings
2110                  * for each file
2111                  *
2112                  * but I don't know how to deal with the paged results
2113                  * (maybe we can hang the result anywhere in the fsp struct)
2114                  *
2115                  * we don't send all files at once
2116                  * and at the next we should *not* start from the beginning,
2117                  * so we have to cache the result
2118                  *
2119                  * --metze
2120                  */
2121
2122                 /* this works for now... */
2123                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2124                 return;
2125         }
2126         default:
2127                 if (!logged_ioctl_message) {
2128                         logged_ioctl_message = true; /* Only print this once... */
2129                         DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2130                                  function));
2131                 }
2132         }
2133
2134         reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2135 }
2136
2137
2138 #ifdef HAVE_SYS_QUOTAS
2139 /****************************************************************************
2140  Reply to get user quota
2141 ****************************************************************************/
2142
2143 static void call_nt_transact_get_user_quota(connection_struct *conn,
2144                                             struct smb_request *req,
2145                                             uint16 **ppsetup,
2146                                             uint32 setup_count,
2147                                             char **ppparams,
2148                                             uint32 parameter_count,
2149                                             char **ppdata,
2150                                             uint32 data_count,
2151                                             uint32 max_data_count)
2152 {
2153         NTSTATUS nt_status = NT_STATUS_OK;
2154         char *params = *ppparams;
2155         char *pdata = *ppdata;
2156         char *entry;
2157         int data_len=0,param_len=0;
2158         int qt_len=0;
2159         int entry_len = 0;
2160         files_struct *fsp = NULL;
2161         uint16 level = 0;
2162         size_t sid_len;
2163         DOM_SID sid;
2164         bool start_enum = True;
2165         SMB_NTQUOTA_STRUCT qt;
2166         SMB_NTQUOTA_LIST *tmp_list;
2167         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2168
2169         ZERO_STRUCT(qt);
2170
2171         /* access check */
2172         if (conn->server_info->utok.uid != 0) {
2173                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2174                          "[%s]\n", lp_servicename(SNUM(conn)),
2175                          conn->server_info->unix_name));
2176                 reply_doserror(req, ERRDOS, ERRnoaccess);
2177                 return;
2178         }
2179
2180         /*
2181          * Ensure minimum number of parameters sent.
2182          */
2183
2184         if (parameter_count < 4) {
2185                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2186                 reply_doserror(req, ERRDOS, ERRinvalidparam);
2187                 return;
2188         }
2189
2190         /* maybe we can check the quota_fnum */
2191         fsp = file_fsp(req, SVAL(params,0));
2192         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2193                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2194                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2195                 return;
2196         }
2197
2198         /* the NULL pointer checking for fsp->fake_file_handle->pd
2199          * is done by CHECK_NTQUOTA_HANDLE_OK()
2200          */
2201         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2202
2203         level = SVAL(params,2);
2204
2205         /* unknown 12 bytes leading in params */
2206
2207         switch (level) {
2208                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2209                         /* seems that we should continue with the enum here --metze */
2210
2211                         if (qt_handle->quota_list!=NULL &&
2212                             qt_handle->tmp_list==NULL) {
2213
2214                                 /* free the list */
2215                                 free_ntquota_list(&(qt_handle->quota_list));
2216
2217                                 /* Realloc the size of parameters and data we will return */
2218                                 param_len = 4;
2219                                 params = nttrans_realloc(ppparams, param_len);
2220                                 if(params == NULL) {
2221                                         reply_doserror(req, ERRDOS, ERRnomem);
2222                                         return;
2223                                 }
2224
2225                                 data_len = 0;
2226                                 SIVAL(params,0,data_len);
2227
2228                                 break;
2229                         }
2230
2231                         start_enum = False;
2232
2233                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2234
2235                         if (qt_handle->quota_list==NULL &&
2236                                 qt_handle->tmp_list==NULL) {
2237                                 start_enum = True;
2238                         }
2239
2240                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2241                                 reply_doserror(req, ERRSRV, ERRerror);
2242                                 return;
2243                         }
2244
2245                         /* Realloc the size of parameters and data we will return */
2246                         param_len = 4;
2247                         params = nttrans_realloc(ppparams, param_len);
2248                         if(params == NULL) {
2249                                 reply_doserror(req, ERRDOS, ERRnomem);
2250                                 return;
2251                         }
2252
2253                         /* we should not trust the value in max_data_count*/
2254                         max_data_count = MIN(max_data_count,2048);
2255
2256                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2257                         if(pdata == NULL) {
2258                                 reply_doserror(req, ERRDOS, ERRnomem);
2259                                 return;
2260                         }
2261
2262                         entry = pdata;
2263
2264                         /* set params Size of returned Quota Data 4 bytes*/
2265                         /* but set it later when we know it */
2266
2267                         /* for each entry push the data */
2268
2269                         if (start_enum) {
2270                                 qt_handle->tmp_list = qt_handle->quota_list;
2271                         }
2272
2273                         tmp_list = qt_handle->tmp_list;
2274
2275                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2276                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2277
2278                                 sid_len = ndr_size_dom_sid(
2279                                         &tmp_list->quotas->sid, NULL, 0);
2280                                 entry_len = 40 + sid_len;
2281
2282                                 /* nextoffset entry 4 bytes */
2283                                 SIVAL(entry,0,entry_len);
2284
2285                                 /* then the len of the SID 4 bytes */
2286                                 SIVAL(entry,4,sid_len);
2287
2288                                 /* unknown data 8 bytes uint64_t */
2289                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2290
2291                                 /* the used disk space 8 bytes uint64_t */
2292                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2293
2294                                 /* the soft quotas 8 bytes uint64_t */
2295                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2296
2297                                 /* the hard quotas 8 bytes uint64_t */
2298                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2299
2300                                 /* and now the SID */
2301                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2302                         }
2303
2304                         qt_handle->tmp_list = tmp_list;
2305
2306                         /* overwrite the offset of the last entry */
2307                         SIVAL(entry-entry_len,0,0);
2308
2309                         data_len = 4+qt_len;
2310                         /* overwrite the params quota_data_len */
2311                         SIVAL(params,0,data_len);
2312
2313                         break;
2314
2315                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2316
2317                         /* unknown 4 bytes IVAL(pdata,0) */
2318
2319                         if (data_count < 8) {
2320                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2321                                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2322                                 return;
2323                         }
2324
2325                         sid_len = IVAL(pdata,4);
2326                         /* Ensure this is less than 1mb. */
2327                         if (sid_len > (1024*1024)) {
2328                                 reply_doserror(req, ERRDOS, ERRnomem);
2329                                 return;
2330                         }
2331
2332                         if (data_count < 8+sid_len) {
2333                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2334                                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2335                                 return;
2336                         }
2337
2338                         data_len = 4+40+sid_len;
2339
2340                         if (max_data_count < data_len) {
2341                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2342                                         max_data_count, data_len));
2343                                 param_len = 4;
2344                                 SIVAL(params,0,data_len);
2345                                 data_len = 0;
2346                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2347                                 break;
2348                         }
2349
2350                         sid_parse(pdata+8,sid_len,&sid);
2351
2352                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2353                                 ZERO_STRUCT(qt);
2354                                 /*
2355                                  * we have to return zero's in all fields
2356                                  * instead of returning an error here
2357                                  * --metze
2358                                  */
2359                         }
2360
2361                         /* Realloc the size of parameters and data we will return */
2362                         param_len = 4;
2363                         params = nttrans_realloc(ppparams, param_len);
2364                         if(params == NULL) {
2365                                 reply_doserror(req, ERRDOS, ERRnomem);
2366                                 return;
2367                         }
2368
2369                         pdata = nttrans_realloc(ppdata, data_len);
2370                         if(pdata == NULL) {
2371                                 reply_doserror(req, ERRDOS, ERRnomem);
2372                                 return;
2373                         }
2374
2375                         entry = pdata;
2376
2377                         /* set params Size of returned Quota Data 4 bytes*/
2378                         SIVAL(params,0,data_len);
2379
2380                         /* nextoffset entry 4 bytes */
2381                         SIVAL(entry,0,0);
2382
2383                         /* then the len of the SID 4 bytes */
2384                         SIVAL(entry,4,sid_len);
2385
2386                         /* unknown data 8 bytes uint64_t */
2387                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2388
2389                         /* the used disk space 8 bytes uint64_t */
2390                         SBIG_UINT(entry,16,qt.usedspace);
2391
2392                         /* the soft quotas 8 bytes uint64_t */
2393                         SBIG_UINT(entry,24,qt.softlim);
2394
2395                         /* the hard quotas 8 bytes uint64_t */
2396                         SBIG_UINT(entry,32,qt.hardlim);
2397
2398                         /* and now the SID */
2399                         sid_linearize(entry+40, sid_len, &sid);
2400
2401                         break;
2402
2403                 default:
2404                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2405                         reply_doserror(req, ERRSRV, ERRerror);
2406                         return;
2407                         break;
2408         }
2409
2410         send_nt_replies(conn, req, nt_status, params, param_len,
2411                         pdata, data_len);
2412 }
2413
2414 /****************************************************************************
2415  Reply to set user quota
2416 ****************************************************************************/
2417
2418 static void call_nt_transact_set_user_quota(connection_struct *conn,
2419                                             struct smb_request *req,
2420                                             uint16 **ppsetup,
2421                                             uint32 setup_count,
2422                                             char **ppparams,
2423                                             uint32 parameter_count,
2424                                             char **ppdata,
2425                                             uint32 data_count,
2426                                             uint32 max_data_count)
2427 {
2428         char *params = *ppparams;
2429         char *pdata = *ppdata;
2430         int data_len=0,param_len=0;
2431         SMB_NTQUOTA_STRUCT qt;
2432         size_t sid_len;
2433         DOM_SID sid;
2434         files_struct *fsp = NULL;
2435
2436         ZERO_STRUCT(qt);
2437
2438         /* access check */
2439         if (conn->server_info->utok.uid != 0) {
2440                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2441                          "[%s]\n", lp_servicename(SNUM(conn)),
2442                          conn->server_info->unix_name));
2443                 reply_doserror(req, ERRDOS, ERRnoaccess);
2444                 return;
2445         }
2446
2447         /*
2448          * Ensure minimum number of parameters sent.
2449          */
2450
2451         if (parameter_count < 2) {
2452                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2453                 reply_doserror(req, ERRDOS, ERRinvalidparam);
2454                 return;
2455         }
2456
2457         /* maybe we can check the quota_fnum */
2458         fsp = file_fsp(req, SVAL(params,0));
2459         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2460                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2461                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2462                 return;
2463         }
2464
2465         if (data_count < 40) {
2466                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2467                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2468                 return;
2469         }
2470
2471         /* offset to next quota record.
2472          * 4 bytes IVAL(pdata,0)
2473          * unused here...
2474          */
2475
2476         /* sid len */
2477         sid_len = IVAL(pdata,4);
2478
2479         if (data_count < 40+sid_len) {
2480                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2481                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2482                 return;
2483         }
2484
2485         /* unknown 8 bytes in pdata
2486          * maybe its the change time in NTTIME
2487          */
2488
2489         /* the used space 8 bytes (uint64_t)*/
2490         qt.usedspace = (uint64_t)IVAL(pdata,16);
2491 #ifdef LARGE_SMB_OFF_T
2492         qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2493 #else /* LARGE_SMB_OFF_T */
2494         if ((IVAL(pdata,20) != 0)&&
2495                 ((qt.usedspace != 0xFFFFFFFF)||
2496                 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2497                 /* more than 32 bits? */
2498                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2499                 return;
2500         }
2501 #endif /* LARGE_SMB_OFF_T */
2502
2503         /* the soft quotas 8 bytes (uint64_t)*/
2504         qt.softlim = (uint64_t)IVAL(pdata,24);
2505 #ifdef LARGE_SMB_OFF_T
2506         qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2507 #else /* LARGE_SMB_OFF_T */
2508         if ((IVAL(pdata,28) != 0)&&
2509                 ((qt.softlim != 0xFFFFFFFF)||
2510                 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2511                 /* more than 32 bits? */
2512                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2513                 return;
2514         }
2515 #endif /* LARGE_SMB_OFF_T */
2516
2517         /* the hard quotas 8 bytes (uint64_t)*/
2518         qt.hardlim = (uint64_t)IVAL(pdata,32);
2519 #ifdef LARGE_SMB_OFF_T
2520         qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2521 #else /* LARGE_SMB_OFF_T */
2522         if ((IVAL(pdata,36) != 0)&&
2523                 ((qt.hardlim != 0xFFFFFFFF)||
2524                 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2525                 /* more than 32 bits? */
2526                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2527                 return;
2528         }
2529 #endif /* LARGE_SMB_OFF_T */
2530
2531         sid_parse(pdata+40,sid_len,&sid);
2532         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2533
2534         /* 44 unknown bytes left... */
2535
2536         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2537                 reply_doserror(req, ERRSRV, ERRerror);
2538                 return;
2539         }
2540
2541         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2542                         pdata, data_len);
2543 }
2544 #endif /* HAVE_SYS_QUOTAS */
2545
2546 static void handle_nttrans(connection_struct *conn,
2547                            struct trans_state *state,
2548                            struct smb_request *req)
2549 {
2550         if (Protocol >= PROTOCOL_NT1) {
2551                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2552                 SSVAL(req->inbuf,smb_flg2,req->flags2);
2553         }
2554
2555
2556         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2557
2558         /* Now we must call the relevant NT_TRANS function */
2559         switch(state->call) {
2560                 case NT_TRANSACT_CREATE:
2561                 {
2562                         START_PROFILE(NT_transact_create);
2563                         call_nt_transact_create(
2564                                 conn, req,
2565                                 &state->setup, state->setup_count,
2566                                 &state->param, state->total_param,
2567                                 &state->data, state->total_data,
2568                                 state->max_data_return);
2569                         END_PROFILE(NT_transact_create);
2570                         break;
2571                 }
2572
2573                 case NT_TRANSACT_IOCTL:
2574                 {
2575                         START_PROFILE(NT_transact_ioctl);
2576                         call_nt_transact_ioctl(
2577                                 conn, req,
2578                                 &state->setup, state->setup_count,
2579                                 &state->param, state->total_param,
2580                                 &state->data, state->total_data,
2581                                 state->max_data_return);
2582                         END_PROFILE(NT_transact_ioctl);
2583                         break;
2584                 }
2585
2586                 case NT_TRANSACT_SET_SECURITY_DESC:
2587                 {
2588                         START_PROFILE(NT_transact_set_security_desc);
2589                         call_nt_transact_set_security_desc(
2590                                 conn, req,
2591                                 &state->setup, state->setup_count,
2592                                 &state->param, state->total_param,
2593                                 &state->data, state->total_data,
2594                                 state->max_data_return);
2595                         END_PROFILE(NT_transact_set_security_desc);
2596                         break;
2597                 }
2598
2599                 case NT_TRANSACT_NOTIFY_CHANGE:
2600                 {
2601                         START_PROFILE(NT_transact_notify_change);
2602                         call_nt_transact_notify_change(
2603                                 conn, req,
2604                                 &state->setup, state->setup_count,
2605                                 &state->param, state->total_param,
2606                                 &state->data, state->total_data,
2607                                 state->max_data_return,
2608                                 state->max_param_return);
2609                         END_PROFILE(NT_transact_notify_change);
2610                         break;
2611                 }
2612
2613                 case NT_TRANSACT_RENAME:
2614                 {
2615                         START_PROFILE(NT_transact_rename);
2616                         call_nt_transact_rename(
2617                                 conn, req,
2618                                 &state->setup, state->setup_count,
2619                                 &state->param, state->total_param,
2620                                 &state->data, state->total_data,
2621                                 state->max_data_return);
2622                         END_PROFILE(NT_transact_rename);
2623                         break;
2624                 }
2625
2626                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2627                 {
2628                         START_PROFILE(NT_transact_query_security_desc);
2629                         call_nt_transact_query_security_desc(
2630                                 conn, req,
2631                                 &state->setup, state->setup_count,
2632                                 &state->param, state->total_param,
2633                                 &state->data, state->total_data,
2634                                 state->max_data_return);
2635                         END_PROFILE(NT_transact_query_security_desc);
2636                         break;
2637                 }
2638
2639 #ifdef HAVE_SYS_QUOTAS
2640                 case NT_TRANSACT_GET_USER_QUOTA:
2641                 {
2642                         START_PROFILE(NT_transact_get_user_quota);
2643                         call_nt_transact_get_user_quota(
2644                                 conn, req,
2645                                 &state->setup, state->setup_count,
2646                                 &state->param, state->total_param,
2647                                 &state->data, state->total_data,
2648                                 state->max_data_return);
2649                         END_PROFILE(NT_transact_get_user_quota);
2650                         break;
2651                 }
2652
2653                 case NT_TRANSACT_SET_USER_QUOTA:
2654                 {
2655                         START_PROFILE(NT_transact_set_user_quota);
2656                         call_nt_transact_set_user_quota(
2657                                 conn, req,
2658                                 &state->setup, state->setup_count,
2659                                 &state->param, state->total_param,
2660                                 &state->data, state->total_data,
2661                                 state->max_data_return);
2662                         END_PROFILE(NT_transact_set_user_quota);
2663                         break;
2664                 }
2665 #endif /* HAVE_SYS_QUOTAS */
2666
2667                 default:
2668                         /* Error in request */
2669                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2670                                  "nttrans call\n", state->call));
2671                         reply_doserror(req, ERRSRV, ERRerror);
2672                         return;
2673         }
2674         return;
2675 }
2676
2677 /****************************************************************************
2678  Reply to a SMBNTtrans.
2679 ****************************************************************************/
2680
2681 void reply_nttrans(struct smb_request *req)
2682 {
2683         connection_struct *conn = req->conn;
2684         uint32_t pscnt;
2685         uint32_t psoff;
2686         uint32_t dscnt;
2687         uint32_t dsoff;
2688         uint16 function_code;
2689         NTSTATUS result;
2690         struct trans_state *state;
2691
2692         START_PROFILE(SMBnttrans);
2693
2694         if (req->wct < 19) {
2695                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2696                 END_PROFILE(SMBnttrans);
2697                 return;
2698         }
2699
2700         pscnt = IVAL(req->vwv+9, 1);
2701         psoff = IVAL(req->vwv+11, 1);
2702         dscnt = IVAL(req->vwv+13, 1);
2703         dsoff = IVAL(req->vwv+15, 1);
2704         function_code = SVAL(req->vwv+18, 0);
2705
2706         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2707                 reply_doserror(req, ERRSRV, ERRaccess);
2708                 END_PROFILE(SMBnttrans);
2709                 return;
2710         }
2711
2712         result = allow_new_trans(conn->pending_trans, req->mid);
2713         if (!NT_STATUS_IS_OK(result)) {
2714                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2715                 reply_nterror(req, result);
2716                 END_PROFILE(SMBnttrans);
2717                 return;
2718         }
2719
2720         if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2721                 reply_doserror(req, ERRSRV, ERRaccess);
2722                 END_PROFILE(SMBnttrans);
2723                 return;
2724         }
2725
2726         state->cmd = SMBnttrans;
2727
2728         state->mid = req->mid;
2729         state->vuid = req->vuid;
2730         state->total_data = IVAL(req->vwv+3, 1);
2731         state->data = NULL;
2732         state->total_param = IVAL(req->vwv+1, 1);
2733         state->param = NULL;
2734         state->max_data_return = IVAL(req->vwv+7, 1);
2735         state->max_param_return = IVAL(req->vwv+5, 1);
2736
2737         /* setup count is in *words* */
2738         state->setup_count = 2*CVAL(req->vwv+17, 1);
2739         state->setup = NULL;
2740         state->call = function_code;
2741
2742         DEBUG(10, ("num_setup=%u, "
2743                    "param_total=%u, this_param=%u, max_param=%u, "
2744                    "data_total=%u, this_data=%u, max_data=%u, "
2745                    "param_offset=%u, data_offset=%u\n",
2746                    (unsigned)state->setup_count,
2747                    (unsigned)state->total_param, (unsigned)pscnt,
2748                    (unsigned)state->max_param_return,
2749                    (unsigned)state->total_data, (unsigned)dscnt,
2750                    (unsigned)state->max_data_return,
2751                    (unsigned)psoff, (unsigned)dsoff));
2752
2753         /*
2754          * All nttrans messages we handle have smb_wct == 19 +
2755          * state->setup_count.  Ensure this is so as a sanity check.
2756          */
2757
2758         if(req->wct != 19 + (state->setup_count/2)) {
2759                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2760                          req->wct, 19 + (state->setup_count/2)));
2761                 goto bad_param;
2762         }
2763
2764         /* Don't allow more than 128mb for each value. */
2765         if ((state->total_data > (1024*1024*128)) ||
2766             (state->total_param > (1024*1024*128))) {
2767                 reply_doserror(req, ERRDOS, ERRnomem);
2768                 END_PROFILE(SMBnttrans);
2769                 return;
2770         }
2771
2772         if ((dscnt > state->total_data) || (pscnt > state->total_param))
2773                 goto bad_param;
2774
2775         if (state->total_data)  {
2776
2777                 if (trans_oob(state->total_data, 0, dscnt)
2778                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2779                         goto bad_param;
2780                 }
2781
2782                 /* Can't use talloc here, the core routines do realloc on the
2783                  * params and data. */
2784                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2785                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
2786                                  "bytes !\n", (unsigned int)state->total_data));
2787                         TALLOC_FREE(state);
2788                         reply_doserror(req, ERRDOS, ERRnomem);
2789                         END_PROFILE(SMBnttrans);
2790                         return;
2791                 }
2792
2793                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2794         }
2795
2796         if (state->total_param) {
2797
2798                 if (trans_oob(state->total_param, 0, pscnt)
2799                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2800                         goto bad_param;
2801                 }
2802
2803                 /* Can't use talloc here, the core routines do realloc on the
2804                  * params and data. */
2805                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2806                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
2807                                  "bytes !\n", (unsigned int)state->total_param));
2808                         SAFE_FREE(state->data);
2809                         TALLOC_FREE(state);
2810                         reply_doserror(req, ERRDOS, ERRnomem);
2811                         END_PROFILE(SMBnttrans);
2812                         return;
2813                 }
2814
2815                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2816         }
2817
2818         state->received_data  = dscnt;
2819         state->received_param = pscnt;
2820
2821         if(state->setup_count > 0) {
2822                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2823                           state->setup_count));
2824
2825                 /*
2826                  * No overflow possible here, state->setup_count is an
2827                  * unsigned int, being filled by a single byte from
2828                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
2829                  * below is not necessary, it's here to clarify things. The
2830                  * validity of req->vwv and req->wct has been checked in
2831                  * init_smb_request already.
2832                  */
2833                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2834                         goto bad_param;
2835                 }
2836
2837                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2838                 if (state->setup == NULL) {
2839                         DEBUG(0,("reply_nttrans : Out of memory\n"));
2840                         SAFE_FREE(state->data);
2841                         SAFE_FREE(state->param);
2842                         TALLOC_FREE(state);
2843                         reply_doserror(req, ERRDOS, ERRnomem);
2844                         END_PROFILE(SMBnttrans);
2845                         return;
2846                 }
2847
2848                 memcpy(state->setup, req->vwv+19, state->setup_count);
2849                 dump_data(10, (uint8 *)state->setup, state->setup_count);
2850         }
2851
2852         if ((state->received_data == state->total_data) &&
2853             (state->received_param == state->total_param)) {
2854                 handle_nttrans(conn, state, req);
2855                 SAFE_FREE(state->param);
2856                 SAFE_FREE(state->data);
2857                 TALLOC_FREE(state);
2858                 END_PROFILE(SMBnttrans);
2859                 return;
2860         }
2861
2862         DLIST_ADD(conn->pending_trans, state);
2863
2864         /* We need to send an interim response then receive the rest
2865            of the parameter/data bytes */
2866         reply_outbuf(req, 0, 0);
2867         show_msg((char *)req->outbuf);
2868         END_PROFILE(SMBnttrans);
2869         return;
2870
2871   bad_param:
2872
2873         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2874         SAFE_FREE(state->data);
2875         SAFE_FREE(state->param);
2876         TALLOC_FREE(state);
2877         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2878         END_PROFILE(SMBnttrans);
2879         return;
2880 }
2881
2882 /****************************************************************************
2883  Reply to a SMBnttranss
2884  ****************************************************************************/
2885
2886 void reply_nttranss(struct smb_request *req)
2887 {
2888         connection_struct *conn = req->conn;
2889         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2890         struct trans_state *state;
2891
2892         START_PROFILE(SMBnttranss);
2893
2894         show_msg((char *)req->inbuf);
2895
2896         if (req->wct < 18) {
2897                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2898                 END_PROFILE(SMBnttranss);
2899                 return;
2900         }
2901
2902         for (state = conn->pending_trans; state != NULL;
2903              state = state->next) {
2904                 if (state->mid == req->mid) {
2905                         break;
2906                 }
2907         }
2908
2909         if ((state == NULL) || (state->cmd != SMBnttrans)) {
2910                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2911                 END_PROFILE(SMBnttranss);
2912                 return;
2913         }
2914
2915         /* Revise state->total_param and state->total_data in case they have
2916            changed downwards */
2917         if (IVAL(req->vwv+1, 1) < state->total_param) {
2918                 state->total_param = IVAL(req->vwv+1, 1);
2919         }
2920         if (IVAL(req->vwv+3, 1) < state->total_data) {
2921                 state->total_data = IVAL(req->vwv+3, 1);
2922         }
2923
2924         pcnt = IVAL(req->vwv+5, 1);
2925         poff = IVAL(req->vwv+7, 1);
2926         pdisp = IVAL(req->vwv+9, 1);
2927
2928         dcnt = IVAL(req->vwv+11, 1);
2929         doff = IVAL(req->vwv+13, 1);
2930         ddisp = IVAL(req->vwv+15, 1);
2931
2932         state->received_param += pcnt;
2933         state->received_data += dcnt;
2934
2935         if ((state->received_data > state->total_data) ||
2936             (state->received_param > state->total_param))
2937                 goto bad_param;
2938
2939         if (pcnt) {
2940                 if (trans_oob(state->total_param, pdisp, pcnt)
2941                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2942                         goto bad_param;
2943                 }
2944                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2945         }
2946
2947         if (dcnt) {
2948                 if (trans_oob(state->total_data, ddisp, dcnt)
2949                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2950                         goto bad_param;
2951                 }
2952                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2953         }
2954
2955         if ((state->received_param < state->total_param) ||
2956             (state->received_data < state->total_data)) {
2957                 END_PROFILE(SMBnttranss);
2958                 return;
2959         }
2960
2961         handle_nttrans(conn, state, req);
2962
2963         DLIST_REMOVE(conn->pending_trans, state);
2964         SAFE_FREE(state->data);
2965         SAFE_FREE(state->param);
2966         TALLOC_FREE(state);
2967         END_PROFILE(SMBnttranss);
2968         return;
2969
2970   bad_param:
2971
2972         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2973         DLIST_REMOVE(conn->pending_trans, state);
2974         SAFE_FREE(state->data);
2975         SAFE_FREE(state->param);
2976         TALLOC_FREE(state);
2977         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2978         END_PROFILE(SMBnttranss);
2979         return;
2980 }