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 "system/filesys.h"
  23 #include "smbd/smbd.h"
  24 #include "smbd/globals.h"
  25 #include "fake_file.h"
  26 #include "../libcli/security/security.h"
  27 #include "../librpc/gen_ndr/ndr_security.h"
  28 #include "passdb/lookup_sid.h"
  29 #include "auth.h"
  30 #include "ntioctl.h"
  31 #include "smbprofile.h"
  32 #include "libsmb/libsmb.h"
  33
  34 extern const struct generic_mapping file_generic_mapping;
  35
  36 static char *nttrans_realloc(char **ptr, size_t size)
  37 {
  38         if (ptr==NULL) {
  39                 smb_panic("nttrans_realloc() called with NULL ptr");
  40         }
  41
  42         *ptr = (char *)SMB_REALLOC(*ptr, size);
  43         if(*ptr == NULL) {
  44                 return NULL;
  45         }
  46         memset(*ptr,'\0',size);
  47         return *ptr;
  48 }
  49
  50 /****************************************************************************
  51  Send the required number of replies back.
  52  We assume all fields other than the data fields are
  53  set correctly for the type of call.
  54  HACK ! Always assumes smb_setup field is zero.
  55 ****************************************************************************/
  56
  57 static void send_nt_replies(connection_struct *conn,
  58                             struct smb_request *req, NTSTATUS nt_error,
  59                             char *params, int paramsize,
  60                             char *pdata, int datasize)
  61 {
  62         int data_to_send = datasize;
  63         int params_to_send = paramsize;
  64         int useable_space;
  65         char *pp = params;
  66         char *pd = pdata;
  67         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  68         int alignment_offset = 1;
  69         int data_alignment_offset = 0;
  70         struct smbd_server_connection *sconn = req->sconn;
  71         int max_send = sconn->smb1.sessions.max_send;
  72
  73         /*
  74          * If there genuinely are no parameters or data to send just send
  75          * the empty packet.
  76          */
  77
  78         if(params_to_send == 0 && data_to_send == 0) {
  79                 reply_outbuf(req, 18, 0);
  80                 if (NT_STATUS_V(nt_error)) {
  81                         error_packet_set((char *)req->outbuf,
  82                                          0, 0, nt_error,
  83                                          __LINE__,__FILE__);
  84                 }
  85                 show_msg((char *)req->outbuf);
  86                 if (!srv_send_smb(sconn,
  87                                 (char *)req->outbuf,
  88                                 true, req->seqnum+1,
  89                                 IS_CONN_ENCRYPTED(conn),
  90                                 &req->pcd)) {
  91                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
  92                 }
  93                 TALLOC_FREE(req->outbuf);
  94                 return;
  95         }
  96
  97         /*
  98          * When sending params and data ensure that both are nicely aligned.
  99          * Only do this alignment when there is also data to send - else
 100          * can cause NT redirector problems.
 101          */
 102
 103         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
 104                 data_alignment_offset = 4 - (params_to_send % 4);
 105         }
 106
 107         /*
 108          * Space is bufsize minus Netbios over TCP header minus SMB header.
 109          * The alignment_offset is to align the param bytes on a four byte
 110          * boundary (2 bytes for data len, one byte pad).
 111          * NT needs this to work correctly.
 112          */
 113
 114         useable_space = max_send - (smb_size
 115                                     + 2 * 18 /* wct */
 116                                     + alignment_offset
 117                                     + data_alignment_offset);
 118
 119         if (useable_space < 0) {
 120                 char *msg = talloc_asprintf(
 121                         talloc_tos(),
 122                         "send_nt_replies failed sanity useable_space = %d!!!",
 123                         useable_space);
 124                 DEBUG(0, ("%s\n", msg));
 125                 exit_server_cleanly(msg);
 126         }
 127
 128         while (params_to_send || data_to_send) {
 129
 130                 /*
 131                  * Calculate whether we will totally or partially fill this packet.
 132                  */
 133
 134                 total_sent_thistime = params_to_send + data_to_send;
 135
 136                 /*
 137                  * We can never send more than useable_space.
 138                  */
 139
 140                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 141
 142                 reply_outbuf(req, 18,
 143                              total_sent_thistime + alignment_offset
 144                              + data_alignment_offset);
 145
 146                 /*
 147                  * We might have had SMBnttranss in req->inbuf, fix that.
 148                  */
 149                 SCVAL(req->outbuf, smb_com, SMBnttrans);
 150
 151                 /*
 152                  * Set total params and data to be sent.
 153                  */
 154
 155                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 156                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 157
 158                 /*
 159                  * Calculate how many parameters and data we can fit into
 160                  * this packet. Parameters get precedence.
 161                  */
 162
 163                 params_sent_thistime = MIN(params_to_send,useable_space);
 164                 data_sent_thistime = useable_space - params_sent_thistime;
 165                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 166
 167                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 168                       params_sent_thistime);
 169
 170                 if(params_sent_thistime == 0) {
 171                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 172                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 173                 } else {
 174                         /*
 175                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 176                          * parameter bytes, however the first 4 bytes of outbuf are
 177                          * the Netbios over TCP header. Thus use smb_base() to subtract
 178                          * them from the calculation.
 179                          */
 180
 181                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 182                               ((smb_buf(req->outbuf)+alignment_offset)
 183                                - smb_base(req->outbuf)));
 184                         /*
 185                          * Absolute displacement of param bytes sent in this packet.
 186                          */
 187
 188                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 189                               pp - params);
 190                 }
 191
 192                 /*
 193                  * Deal with the data portion.
 194                  */
 195
 196                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 197
 198                 if(data_sent_thistime == 0) {
 199                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 200                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 201                 } else {
 202                         /*
 203                          * The offset of the data bytes is the offset of the
 204                          * parameter bytes plus the number of parameters being sent this time.
 205                          */
 206
 207                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 208                               ((smb_buf(req->outbuf)+alignment_offset) -
 209                                smb_base(req->outbuf))
 210                               + params_sent_thistime + data_alignment_offset);
 211                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 212                 }
 213
 214                 /*
 215                  * Copy the param bytes into the packet.
 216                  */
 217
 218                 if(params_sent_thistime) {
 219                         if (alignment_offset != 0) {
 220                                 memset(smb_buf(req->outbuf), 0,
 221                                        alignment_offset);
 222                         }
 223                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 224                                params_sent_thistime);
 225                 }
 226
 227                 /*
 228                  * Copy in the data bytes
 229                  */
 230
 231                 if(data_sent_thistime) {
 232                         if (data_alignment_offset != 0) {
 233                                 memset((smb_buf(req->outbuf)+alignment_offset+
 234                                         params_sent_thistime), 0,
 235                                        data_alignment_offset);
 236                         }
 237                         memcpy(smb_buf(req->outbuf)+alignment_offset
 238                                +params_sent_thistime+data_alignment_offset,
 239                                pd,data_sent_thistime);
 240                 }
 241
 242                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 243                         params_sent_thistime, data_sent_thistime, useable_space));
 244                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 245                         params_to_send, data_to_send, paramsize, datasize));
 246
 247                 if (NT_STATUS_V(nt_error)) {
 248                         error_packet_set((char *)req->outbuf,
 249                                          0, 0, nt_error,
 250                                          __LINE__,__FILE__);
 251                 }
 252
 253                 /* Send the packet */
 254                 show_msg((char *)req->outbuf);
 255                 if (!srv_send_smb(sconn,
 256                                 (char *)req->outbuf,
 257                                 true, req->seqnum+1,
 258                                 IS_CONN_ENCRYPTED(conn),
 259                                 &req->pcd)) {
 260                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 261                 }
 262
 263                 TALLOC_FREE(req->outbuf);
 264
 265                 pp += params_sent_thistime;
 266                 pd += data_sent_thistime;
 267
 268                 params_to_send -= params_sent_thistime;
 269                 data_to_send -= data_sent_thistime;
 270
 271                 /*
 272                  * Sanity check
 273                  */
 274
 275                 if(params_to_send < 0 || data_to_send < 0) {
 276                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 277                                 params_to_send, data_to_send));
 278                         exit_server_cleanly("send_nt_replies: internal error");
 279                 }
 280         }
 281 }
 282
 283 /****************************************************************************
 284  Reply to an NT create and X call on a pipe
 285 ****************************************************************************/
 286
 287 static void nt_open_pipe(char *fname, connection_struct *conn,
 288                          struct smb_request *req, int *ppnum)
 289 {
 290         files_struct *fsp;
 291         NTSTATUS status;
 292
 293         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 294
 295         /* Strip \\ off the name. */
 296         fname++;
 297
 298         status = open_np_file(req, fname, &fsp);
 299         if (!NT_STATUS_IS_OK(status)) {
 300                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 301                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 302                                         ERRDOS, ERRbadpipe);
 303                         return;
 304                 }
 305                 reply_nterror(req, status);
 306                 return;
 307         }
 308
 309         *ppnum = fsp->fnum;
 310         return;
 311 }
 312
 313 /****************************************************************************
 314  Reply to an NT create and X call for pipes.
 315 ****************************************************************************/
 316
 317 static void do_ntcreate_pipe_open(connection_struct *conn,
 318                                   struct smb_request *req)
 319 {
 320         char *fname = NULL;
 321         int pnum = -1;
 322         char *p = NULL;
 323         uint32 flags = IVAL(req->vwv+3, 1);
 324         TALLOC_CTX *ctx = talloc_tos();
 325
 326         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
 327
 328         if (!fname) {
 329                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 330                                 ERRDOS, ERRbadpipe);
 331                 return;
 332         }
 333         nt_open_pipe(fname, conn, req, &pnum);
 334
 335         if (req->outbuf) {
 336                 /* error reply */
 337                 return;
 338         }
 339
 340         /*
 341          * Deal with pipe return.
 342          */
 343
 344         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 345                 /* This is very strange. We
 346                  * return 50 words, but only set
 347                  * the wcnt to 42 ? It's definately
 348                  * what happens on the wire....
 349                  */
 350                 reply_outbuf(req, 50, 0);
 351                 SCVAL(req->outbuf,smb_wct,42);
 352         } else {
 353                 reply_outbuf(req, 34, 0);
 354         }
 355
 356         p = (char *)req->outbuf + smb_vwv2;
 357         p++;
 358         SSVAL(p,0,pnum);
 359         p += 2;
 360         SIVAL(p,0,FILE_WAS_OPENED);
 361         p += 4;
 362         p += 32;
 363         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 364         p += 20;
 365         /* File type. */
 366         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 367         /* Device state. */
 368         SSVAL(p,2, 0x5FF); /* ? */
 369         p += 4;
 370
 371         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 372                 p += 25;
 373                 SIVAL(p,0,FILE_GENERIC_ALL);
 374                 /*
 375                  * For pipes W2K3 seems to return
 376                  * 0x12019B next.
 377                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 378                  */
 379                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 380         }
 381
 382         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 383
 384         chain_reply(req);
 385 }
 386
 387 struct case_semantics_state {
 388         connection_struct *conn;
 389         bool case_sensitive;
 390         bool case_preserve;
 391         bool short_case_preserve;
 392 };
 393
 394 /****************************************************************************
 395  Restore case semantics.
 396 ****************************************************************************/
 397
 398 static int restore_case_semantics(struct case_semantics_state *state)
 399 {
 400         state->conn->case_sensitive = state->case_sensitive;
 401         state->conn->case_preserve = state->case_preserve;
 402         state->conn->short_case_preserve = state->short_case_preserve;
 403         return 0;
 404 }
 405
 406 /****************************************************************************
 407  Save case semantics.
 408 ****************************************************************************/
 409
 410 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 411                                                 connection_struct *conn)
 412 {
 413         struct case_semantics_state *result;
 414
 415         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 416                 return NULL;
 417         }
 418
 419         result->conn = conn;
 420         result->case_sensitive = conn->case_sensitive;
 421         result->case_preserve = conn->case_preserve;
 422         result->short_case_preserve = conn->short_case_preserve;
 423
 424         /* Set to POSIX. */
 425         conn->case_sensitive = True;
 426         conn->case_preserve = True;
 427         conn->short_case_preserve = True;
 428
 429         talloc_set_destructor(result, restore_case_semantics);
 430
 431         return result;
 432 }
 433
 434 /****************************************************************************
 435  Reply to an NT create and X call.
 436 ****************************************************************************/
 437
 438 void reply_ntcreate_and_X(struct smb_request *req)
 439 {
 440         connection_struct *conn = req->conn;
 441         struct smb_filename *smb_fname = NULL;
 442         char *fname = NULL;
 443         uint32 flags;
 444         uint32 access_mask;
 445         uint32 file_attributes;
 446         uint32 share_access;
 447         uint32 create_disposition;
 448         uint32 create_options;
 449         uint16 root_dir_fid;
 450         uint64_t allocation_size;
 451         /* Breakout the oplock request bits so we can set the
 452            reply bits separately. */
 453         uint32 fattr=0;
 454         SMB_OFF_T file_len = 0;
 455         int info = 0;
 456         files_struct *fsp = NULL;
 457         char *p = NULL;
 458         struct timespec create_timespec;
 459         struct timespec c_timespec;
 460         struct timespec a_timespec;
 461         struct timespec m_timespec;
 462         struct timespec write_time_ts;
 463         NTSTATUS status;
 464         int oplock_request;
 465         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 466         struct case_semantics_state *case_state = NULL;
 467         TALLOC_CTX *ctx = talloc_tos();
 468
 469         START_PROFILE(SMBntcreateX);
 470
 471         if (req->wct < 24) {
 472                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 473                 goto out;
 474         }
 475
 476         flags = IVAL(req->vwv+3, 1);
 477         access_mask = IVAL(req->vwv+7, 1);
 478         file_attributes = IVAL(req->vwv+13, 1);
 479         share_access = IVAL(req->vwv+15, 1);
 480         create_disposition = IVAL(req->vwv+17, 1);
 481         create_options = IVAL(req->vwv+19, 1);
 482         root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
 483
 484         allocation_size = BVAL(req->vwv+9, 1);
 485
 486         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 487                             STR_TERMINATE, &status);
 488
 489         if (!NT_STATUS_IS_OK(status)) {
 490                 reply_nterror(req, status);
 491                 goto out;
 492         }
 493
 494         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 495                   "file_attributes = 0x%x, share_access = 0x%x, "
 496                   "create_disposition = 0x%x create_options = 0x%x "
 497                   "root_dir_fid = 0x%x, fname = %s\n",
 498                         (unsigned int)flags,
 499                         (unsigned int)access_mask,
 500                         (unsigned int)file_attributes,
 501                         (unsigned int)share_access,
 502                         (unsigned int)create_disposition,
 503                         (unsigned int)create_options,
 504                         (unsigned int)root_dir_fid,
 505                         fname));
 506
 507         /*
 508          * we need to remove ignored bits when they come directly from the client
 509          * because we reuse some of them for internal stuff
 510          */
 511         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 512
 513         /*
 514          * If it's an IPC, use the pipe handler.
 515          */
 516
 517         if (IS_IPC(conn)) {
 518                 if (lp_nt_pipe_support()) {
 519                         do_ntcreate_pipe_open(conn, req);
 520                         goto out;
 521                 }
 522                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 523                 goto out;
 524         }
 525
 526         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 527         if (oplock_request) {
 528                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 529                         ? BATCH_OPLOCK : 0;
 530         }
 531
 532         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 533                 case_state = set_posix_case_semantics(ctx, conn);
 534                 if (!case_state) {
 535                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 536                         goto out;
 537                 }
 538         }
 539
 540         status = filename_convert(ctx,
 541                                 conn,
 542                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 543                                 fname,
 544                                 0,
 545                                 NULL,
 546                                 &smb_fname);
 547
 548         TALLOC_FREE(case_state);
 549
 550         if (!NT_STATUS_IS_OK(status)) {
 551                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 552                         reply_botherror(req,
 553                                 NT_STATUS_PATH_NOT_COVERED,
 554                                 ERRSRV, ERRbadpath);
 555                         goto out;
 556                 }
 557                 reply_nterror(req, status);
 558                 goto out;
 559         }
 560
 561         /*
 562          * Bug #6898 - clients using Windows opens should
 563          * never be able to set this attribute into the
 564          * VFS.
 565          */
 566         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 567
 568         status = SMB_VFS_CREATE_FILE(
 569                 conn,                                   /* conn */
 570                 req,                                    /* req */
 571                 root_dir_fid,                           /* root_dir_fid */
 572                 smb_fname,                              /* fname */
 573                 access_mask,                            /* access_mask */
 574                 share_access,                           /* share_access */
 575                 create_disposition,                     /* create_disposition*/
 576                 create_options,                         /* create_options */
 577                 file_attributes,                        /* file_attributes */
 578                 oplock_request,                         /* oplock_request */
 579                 allocation_size,                        /* allocation_size */
 580                 0,                                      /* private_flags */
 581                 NULL,                                   /* sd */
 582                 NULL,                                   /* ea_list */
 583                 &fsp,                                   /* result */
 584                 &info);                                 /* pinfo */
 585
 586         if (!NT_STATUS_IS_OK(status)) {
 587                 if (open_was_deferred(req->mid)) {
 588                         /* We have re-scheduled this call, no error. */
 589                         goto out;
 590                 }
 591                 reply_openerror(req, status);
 592                 goto out;
 593         }
 594
 595         /* Ensure we're pointing at the correct stat struct. */
 596         TALLOC_FREE(smb_fname);
 597         smb_fname = fsp->fsp_name;
 598
 599         /*
 600          * If the caller set the extended oplock request bit
 601          * and we granted one (by whatever means) - set the
 602          * correct bit for extended oplock reply.
 603          */
 604
 605         if (oplock_request &&
 606             (lp_fake_oplocks(SNUM(conn))
 607              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 608
 609                 /*
 610                  * Exclusive oplock granted
 611                  */
 612
 613                 if (flags & REQUEST_BATCH_OPLOCK) {
 614                         oplock_granted = BATCH_OPLOCK_RETURN;
 615                 } else {
 616                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 617                 }
 618         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 619                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 620         } else {
 621                 oplock_granted = NO_OPLOCK_RETURN;
 622         }
 623
 624         file_len = smb_fname->st.st_ex_size;
 625
 626         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 627                 /* This is very strange. We
 628                  * return 50 words, but only set
 629                  * the wcnt to 42 ? It's definately
 630                  * what happens on the wire....
 631                  */
 632                 reply_outbuf(req, 50, 0);
 633                 SCVAL(req->outbuf,smb_wct,42);
 634         } else {
 635                 reply_outbuf(req, 34, 0);
 636         }
 637
 638         p = (char *)req->outbuf + smb_vwv2;
 639
 640         SCVAL(p, 0, oplock_granted);
 641
 642         p++;
 643         SSVAL(p,0,fsp->fnum);
 644         p += 2;
 645         if ((create_disposition == FILE_SUPERSEDE)
 646             && (info == FILE_WAS_OVERWRITTEN)) {
 647                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 648         } else {
 649                 SIVAL(p,0,info);
 650         }
 651         p += 4;
 652
 653         fattr = dos_mode(conn, smb_fname);
 654         if (fattr == 0) {
 655                 fattr = FILE_ATTRIBUTE_NORMAL;
 656         }
 657
 658         /* Deal with other possible opens having a modified
 659            write time. JRA. */
 660         ZERO_STRUCT(write_time_ts);
 661         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
 662         if (!null_timespec(write_time_ts)) {
 663                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
 664         }
 665
 666         /* Create time. */
 667         create_timespec = get_create_timespec(conn, fsp, smb_fname);
 668         a_timespec = smb_fname->st.st_ex_atime;
 669         m_timespec = smb_fname->st.st_ex_mtime;
 670         c_timespec = get_change_timespec(conn, fsp, smb_fname);
 671
 672         if (lp_dos_filetime_resolution(SNUM(conn))) {
 673                 dos_filetime_timespec(&create_timespec);
 674                 dos_filetime_timespec(&a_timespec);
 675                 dos_filetime_timespec(&m_timespec);
 676                 dos_filetime_timespec(&c_timespec);
 677         }
 678
 679         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
 680         p += 8;
 681         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
 682         p += 8;
 683         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
 684         p += 8;
 685         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
 686         p += 8;
 687         SIVAL(p,0,fattr); /* File Attributes. */
 688         p += 4;
 689         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 690         p += 8;
 691         SOFF_T(p,0,file_len);
 692         p += 8;
 693         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 694                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
 695                 size_t num_names = 0;
 696                 unsigned int num_streams;
 697                 struct stream_struct *streams = NULL;
 698
 699                 /* Do we have any EA's ? */
 700                 status = get_ea_names_from_file(ctx, conn, fsp,
 701                                 smb_fname->base_name, NULL, &num_names);
 702                 if (NT_STATUS_IS_OK(status) && num_names) {
 703                         file_status &= ~NO_EAS;
 704                 }
 705                 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
 706                         &num_streams, &streams);
 707                 /* There is always one stream, ::$DATA. */
 708                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
 709                         file_status &= ~NO_SUBSTREAMS;
 710                 }
 711                 TALLOC_FREE(streams);
 712                 SSVAL(p,2,file_status);
 713         }
 714         p += 4;
 715         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 716
 717         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 718                 uint32 perms = 0;
 719                 p += 25;
 720                 if (fsp->is_directory ||
 721                     can_write_to_file(conn, smb_fname)) {
 722                         perms = FILE_GENERIC_ALL;
 723                 } else {
 724                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 725                 }
 726                 SIVAL(p,0,perms);
 727         }
 728
 729         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
 730                 fsp->fnum, smb_fname_str_dbg(smb_fname)));
 731
 732         chain_reply(req);
 733  out:
 734         END_PROFILE(SMBntcreateX);
 735         return;
 736 }
 737
 738 /****************************************************************************
 739  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 740 ****************************************************************************/
 741
 742 static void do_nt_transact_create_pipe(connection_struct *conn,
 743                                        struct smb_request *req,
 744                                        uint16 **ppsetup, uint32 setup_count,
 745                                        char **ppparams, uint32 parameter_count,
 746                                        char **ppdata, uint32 data_count)
 747 {
 748         char *fname = NULL;
 749         char *params = *ppparams;
 750         int pnum = -1;
 751         char *p = NULL;
 752         NTSTATUS status;
 753         size_t param_len;
 754         uint32 flags;
 755         TALLOC_CTX *ctx = talloc_tos();
 756
 757         /*
 758          * Ensure minimum number of parameters sent.
 759          */
 760
 761         if(parameter_count < 54) {
 762                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 763                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 764                 return;
 765         }
 766
 767         flags = IVAL(params,0);
 768
 769         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
 770                         parameter_count-53, STR_TERMINATE,
 771                         &status);
 772         if (!NT_STATUS_IS_OK(status)) {
 773                 reply_nterror(req, status);
 774                 return;
 775         }
 776
 777         nt_open_pipe(fname, conn, req, &pnum);
 778
 779         if (req->outbuf) {
 780                 /* Error return */
 781                 return;
 782         }
 783
 784         /* Realloc the size of parameters and data we will return */
 785         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 786                 /* Extended response is 32 more byyes. */
 787                 param_len = 101;
 788         } else {
 789                 param_len = 69;
 790         }
 791         params = nttrans_realloc(ppparams, param_len);
 792         if(params == NULL) {
 793                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 794                 return;
 795         }
 796
 797         p = params;
 798         SCVAL(p,0,NO_OPLOCK_RETURN);
 799
 800         p += 2;
 801         SSVAL(p,0,pnum);
 802         p += 2;
 803         SIVAL(p,0,FILE_WAS_OPENED);
 804         p += 8;
 805
 806         p += 32;
 807         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 808         p += 20;
 809         /* File type. */
 810         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 811         /* Device state. */
 812         SSVAL(p,2, 0x5FF); /* ? */
 813         p += 4;
 814
 815         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 816                 p += 25;
 817                 SIVAL(p,0,FILE_GENERIC_ALL);
 818                 /*
 819                  * For pipes W2K3 seems to return
 820                  * 0x12019B next.
 821                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 822                  */
 823                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 824         }
 825
 826         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 827
 828         /* Send the required number of replies */
 829         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 830
 831         return;
 832 }
 833
 834 /****************************************************************************
 835  Internal fn to set security descriptors.
 836 ****************************************************************************/
 837
 838 NTSTATUS set_sd(files_struct *fsp, uint8_t *data, uint32_t sd_len,
 839                        uint32_t security_info_sent)
 840 {
 841         struct security_descriptor *psd = NULL;
 842         NTSTATUS status;
 843
 844         if (sd_len == 0) {
 845                 return NT_STATUS_INVALID_PARAMETER;
 846         }
 847
 848         if (!CAN_WRITE(fsp->conn)) {
 849                 return NT_STATUS_ACCESS_DENIED;
 850         }
 851
 852         if (!lp_nt_acl_support(SNUM(fsp->conn))) {
 853                 return NT_STATUS_OK;
 854         }
 855
 856         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 857
 858         if (!NT_STATUS_IS_OK(status)) {
 859                 return status;
 860         }
 861
 862         if (psd->owner_sid == NULL) {
 863                 security_info_sent &= ~SECINFO_OWNER;
 864         }
 865         if (psd->group_sid == NULL) {
 866                 security_info_sent &= ~SECINFO_GROUP;
 867         }
 868
 869         /* Ensure we have at least one thing set. */
 870         if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
 871                 return NT_STATUS_INVALID_PARAMETER;
 872         }
 873
 874         /* Ensure we have the rights to do this. */
 875         if (security_info_sent & SECINFO_OWNER) {
 876                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 877                         return NT_STATUS_ACCESS_DENIED;
 878                 }
 879         }
 880
 881         if (security_info_sent & SECINFO_GROUP) {
 882                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 883                         return NT_STATUS_ACCESS_DENIED;
 884                 }
 885         }
 886
 887         if (security_info_sent & SECINFO_DACL) {
 888                 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
 889                         return NT_STATUS_ACCESS_DENIED;
 890                 }
 891                 /* Convert all the generic bits. */
 892                 if (psd->dacl) {
 893                         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 894                 }
 895         }
 896
 897         if (security_info_sent & SECINFO_SACL) {
 898                 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
 899                         return NT_STATUS_ACCESS_DENIED;
 900                 }
 901                 /* Convert all the generic bits. */
 902                 if (psd->sacl) {
 903                         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 904                 }
 905         }
 906
 907         if (DEBUGLEVEL >= 10) {
 908                 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
 909                 NDR_PRINT_DEBUG(security_descriptor, psd);
 910         }
 911
 912         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 913
 914         TALLOC_FREE(psd);
 915
 916         return status;
 917 }
 918
 919 /****************************************************************************
 920  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
 921 ****************************************************************************/
 922
 923 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
 924 {
 925         struct ea_list *ea_list_head = NULL;
 926         size_t offset = 0;
 927
 928         if (data_size < 4) {
 929                 return NULL;
 930         }
 931
 932         while (offset + 4 <= data_size) {
 933                 size_t next_offset = IVAL(pdata,offset);
 934                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
 935
 936                 if (!eal) {
 937                         return NULL;
 938                 }
 939
 940                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
 941                 if (next_offset == 0) {
 942                         break;
 943                 }
 944                 offset += next_offset;
 945         }
 946
 947         return ea_list_head;
 948 }
 949
 950 /****************************************************************************
 951  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
 952 ****************************************************************************/
 953
 954 static void call_nt_transact_create(connection_struct *conn,
 955                                     struct smb_request *req,
 956                                     uint16 **ppsetup, uint32 setup_count,
 957                                     char **ppparams, uint32 parameter_count,
 958                                     char **ppdata, uint32 data_count,
 959                                     uint32 max_data_count)
 960 {
 961         struct smb_filename *smb_fname = NULL;
 962         char *fname = NULL;
 963         char *params = *ppparams;
 964         char *data = *ppdata;
 965         /* Breakout the oplock request bits so we can set the reply bits separately. */
 966         uint32 fattr=0;
 967         SMB_OFF_T file_len = 0;
 968         int info = 0;
 969         files_struct *fsp = NULL;
 970         char *p = NULL;
 971         uint32 flags;
 972         uint32 access_mask;
 973         uint32 file_attributes;
 974         uint32 share_access;
 975         uint32 create_disposition;
 976         uint32 create_options;
 977         uint32 sd_len;
 978         struct security_descriptor *sd = NULL;
 979         uint32 ea_len;
 980         uint16 root_dir_fid;
 981         struct timespec create_timespec;
 982         struct timespec c_timespec;
 983         struct timespec a_timespec;
 984         struct timespec m_timespec;
 985         struct timespec write_time_ts;
 986         struct ea_list *ea_list = NULL;
 987         NTSTATUS status;
 988         size_t param_len;
 989         uint64_t allocation_size;
 990         int oplock_request;
 991         uint8_t oplock_granted;
 992         struct case_semantics_state *case_state = NULL;
 993         TALLOC_CTX *ctx = talloc_tos();
 994
 995         DEBUG(5,("call_nt_transact_create\n"));
 996
 997         /*
 998          * If it's an IPC, use the pipe handler.
 999          */
1000
1001         if (IS_IPC(conn)) {
1002                 if (lp_nt_pipe_support()) {
1003                         do_nt_transact_create_pipe(
1004                                 conn, req,
1005                                 ppsetup, setup_count,
1006                                 ppparams, parameter_count,
1007                                 ppdata, data_count);
1008                         goto out;
1009                 }
1010                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1011                 goto out;
1012         }
1013
1014         /*
1015          * Ensure minimum number of parameters sent.
1016          */
1017
1018         if(parameter_count < 54) {
1019                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1020                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1021                 goto out;
1022         }
1023
1024         flags = IVAL(params,0);
1025         access_mask = IVAL(params,8);
1026         file_attributes = IVAL(params,20);
1027         share_access = IVAL(params,24);
1028         create_disposition = IVAL(params,28);
1029         create_options = IVAL(params,32);
1030         sd_len = IVAL(params,36);
1031         ea_len = IVAL(params,40);
1032         root_dir_fid = (uint16)IVAL(params,4);
1033         allocation_size = BVAL(params,12);
1034
1035         /*
1036          * we need to remove ignored bits when they come directly from the client
1037          * because we reuse some of them for internal stuff
1038          */
1039         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1040
1041         /* Ensure the data_len is correct for the sd and ea values given. */
1042         if ((ea_len + sd_len > data_count)
1043             || (ea_len > data_count) || (sd_len > data_count)
1044             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1045                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1046                            "%u, data_count = %u\n", (unsigned int)ea_len,
1047                            (unsigned int)sd_len, (unsigned int)data_count));
1048                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1049                 goto out;
1050         }
1051
1052         if (sd_len) {
1053                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1054                            sd_len));
1055
1056                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1057                                              &sd);
1058                 if (!NT_STATUS_IS_OK(status)) {
1059                         DEBUG(10, ("call_nt_transact_create: "
1060                                    "unmarshall_sec_desc failed: %s\n",
1061                                    nt_errstr(status)));
1062                         reply_nterror(req, status);
1063                         goto out;
1064                 }
1065         }
1066
1067         if (ea_len) {
1068                 if (!lp_ea_support(SNUM(conn))) {
1069                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1070                                    "EA's not supported.\n",
1071                                    (unsigned int)ea_len));
1072                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1073                         goto out;
1074                 }
1075
1076                 if (ea_len < 10) {
1077                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1078                                   "too small (should be more than 10)\n",
1079                                   (unsigned int)ea_len ));
1080                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1081                         goto out;
1082                 }
1083
1084                 /* We have already checked that ea_len <= data_count here. */
1085                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1086                                                ea_len);
1087                 if (ea_list == NULL) {
1088                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1089                         goto out;
1090                 }
1091         }
1092
1093         srvstr_get_path(ctx, params, req->flags2, &fname,
1094                         params+53, parameter_count-53,
1095                         STR_TERMINATE, &status);
1096         if (!NT_STATUS_IS_OK(status)) {
1097                 reply_nterror(req, status);
1098                 goto out;
1099         }
1100
1101         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1102                 case_state = set_posix_case_semantics(ctx, conn);
1103                 if (!case_state) {
1104                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1105                         goto out;
1106                 }
1107         }
1108
1109         status = filename_convert(ctx,
1110                                 conn,
1111                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1112                                 fname,
1113                                 0,
1114                                 NULL,
1115                                 &smb_fname);
1116
1117         TALLOC_FREE(case_state);
1118
1119         if (!NT_STATUS_IS_OK(status)) {
1120                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1121                         reply_botherror(req,
1122                                 NT_STATUS_PATH_NOT_COVERED,
1123                                 ERRSRV, ERRbadpath);
1124                         goto out;
1125                 }
1126                 reply_nterror(req, status);
1127                 goto out;
1128         }
1129
1130         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1131         if (oplock_request) {
1132                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1133                         ? BATCH_OPLOCK : 0;
1134         }
1135
1136         /*
1137          * Bug #6898 - clients using Windows opens should
1138          * never be able to set this attribute into the
1139          * VFS.
1140          */
1141         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1142
1143         status = SMB_VFS_CREATE_FILE(
1144                 conn,                                   /* conn */
1145                 req,                                    /* req */
1146                 root_dir_fid,                           /* root_dir_fid */
1147                 smb_fname,                              /* fname */
1148                 access_mask,                            /* access_mask */
1149                 share_access,                           /* share_access */
1150                 create_disposition,                     /* create_disposition*/
1151                 create_options,                         /* create_options */
1152                 file_attributes,                        /* file_attributes */
1153                 oplock_request,                         /* oplock_request */
1154                 allocation_size,                        /* allocation_size */
1155                 0,                                      /* private_flags */
1156                 sd,                                     /* sd */
1157                 ea_list,                                /* ea_list */
1158                 &fsp,                                   /* result */
1159                 &info);                                 /* pinfo */
1160
1161         if(!NT_STATUS_IS_OK(status)) {
1162                 if (open_was_deferred(req->mid)) {
1163                         /* We have re-scheduled this call, no error. */
1164                         return;
1165                 }
1166                 reply_openerror(req, status);
1167                 goto out;
1168         }
1169
1170         /* Ensure we're pointing at the correct stat struct. */
1171         TALLOC_FREE(smb_fname);
1172         smb_fname = fsp->fsp_name;
1173
1174         /*
1175          * If the caller set the extended oplock request bit
1176          * and we granted one (by whatever means) - set the
1177          * correct bit for extended oplock reply.
1178          */
1179
1180         if (oplock_request &&
1181             (lp_fake_oplocks(SNUM(conn))
1182              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1183
1184                 /*
1185                  * Exclusive oplock granted
1186                  */
1187
1188                 if (flags & REQUEST_BATCH_OPLOCK) {
1189                         oplock_granted = BATCH_OPLOCK_RETURN;
1190                 } else {
1191                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1192                 }
1193         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1194                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1195         } else {
1196                 oplock_granted = NO_OPLOCK_RETURN;
1197         }
1198
1199         file_len = smb_fname->st.st_ex_size;
1200
1201         /* Realloc the size of parameters and data we will return */
1202         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1203                 /* Extended response is 32 more byyes. */
1204                 param_len = 101;
1205         } else {
1206                 param_len = 69;
1207         }
1208         params = nttrans_realloc(ppparams, param_len);
1209         if(params == NULL) {
1210                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1211                 goto out;
1212         }
1213
1214         p = params;
1215         SCVAL(p, 0, oplock_granted);
1216
1217         p += 2;
1218         SSVAL(p,0,fsp->fnum);
1219         p += 2;
1220         if ((create_disposition == FILE_SUPERSEDE)
1221             && (info == FILE_WAS_OVERWRITTEN)) {
1222                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1223         } else {
1224                 SIVAL(p,0,info);
1225         }
1226         p += 8;
1227
1228         fattr = dos_mode(conn, smb_fname);
1229         if (fattr == 0) {
1230                 fattr = FILE_ATTRIBUTE_NORMAL;
1231         }
1232
1233         /* Deal with other possible opens having a modified
1234            write time. JRA. */
1235         ZERO_STRUCT(write_time_ts);
1236         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1237         if (!null_timespec(write_time_ts)) {
1238                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1239         }
1240
1241         /* Create time. */
1242         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1243         a_timespec = smb_fname->st.st_ex_atime;
1244         m_timespec = smb_fname->st.st_ex_mtime;
1245         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1246
1247         if (lp_dos_filetime_resolution(SNUM(conn))) {
1248                 dos_filetime_timespec(&create_timespec);
1249                 dos_filetime_timespec(&a_timespec);
1250                 dos_filetime_timespec(&m_timespec);
1251                 dos_filetime_timespec(&c_timespec);
1252         }
1253
1254         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1255         p += 8;
1256         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1257         p += 8;
1258         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1259         p += 8;
1260         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1261         p += 8;
1262         SIVAL(p,0,fattr); /* File Attributes. */
1263         p += 4;
1264         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1265         p += 8;
1266         SOFF_T(p,0,file_len);
1267         p += 8;
1268         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1269                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1270                 size_t num_names = 0;
1271                 unsigned int num_streams;
1272                 struct stream_struct *streams = NULL;
1273
1274                 /* Do we have any EA's ? */
1275                 status = get_ea_names_from_file(ctx, conn, fsp,
1276                                 smb_fname->base_name, NULL, &num_names);
1277                 if (NT_STATUS_IS_OK(status) && num_names) {
1278                         file_status &= ~NO_EAS;
1279                 }
1280                 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
1281                         &num_streams, &streams);
1282                 /* There is always one stream, ::$DATA. */
1283                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1284                         file_status &= ~NO_SUBSTREAMS;
1285                 }
1286                 TALLOC_FREE(streams);
1287                 SSVAL(p,2,file_status);
1288         }
1289         p += 4;
1290         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1291
1292         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1293                 uint32 perms = 0;
1294                 p += 25;
1295                 if (fsp->is_directory ||
1296                     can_write_to_file(conn, smb_fname)) {
1297                         perms = FILE_GENERIC_ALL;
1298                 } else {
1299                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1300                 }
1301                 SIVAL(p,0,perms);
1302         }
1303
1304         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1305                  smb_fname_str_dbg(smb_fname)));
1306
1307         /* Send the required number of replies */
1308         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1309  out:
1310         return;
1311 }
1312
1313 /****************************************************************************
1314  Reply to a NT CANCEL request.
1315  conn POINTER CAN BE NULL HERE !
1316 ****************************************************************************/
1317
1318 void reply_ntcancel(struct smb_request *req)
1319 {
1320         /*
1321          * Go through and cancel any pending change notifies.
1322          */
1323
1324         START_PROFILE(SMBntcancel);
1325         srv_cancel_sign_response(req->sconn);
1326         remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1327         remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1328
1329         DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1330                 (unsigned long long)req->mid));
1331
1332         END_PROFILE(SMBntcancel);
1333         return;
1334 }
1335
1336 /****************************************************************************
1337  Copy a file.
1338 ****************************************************************************/
1339
1340 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1341                                 connection_struct *conn,
1342                                 struct smb_request *req,
1343                                 struct smb_filename *smb_fname_src,
1344                                 struct smb_filename *smb_fname_dst,
1345                                 uint32 attrs)
1346 {
1347         files_struct *fsp1,*fsp2;
1348         uint32 fattr;
1349         int info;
1350         SMB_OFF_T ret=-1;
1351         NTSTATUS status = NT_STATUS_OK;
1352         char *parent;
1353
1354         if (!CAN_WRITE(conn)) {
1355                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1356                 goto out;
1357         }
1358
1359         /* Source must already exist. */
1360         if (!VALID_STAT(smb_fname_src->st)) {
1361                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1362                 goto out;
1363         }
1364
1365         /* Ensure attributes match. */
1366         fattr = dos_mode(conn, smb_fname_src);
1367         if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1368                 status = NT_STATUS_NO_SUCH_FILE;
1369                 goto out;
1370         }
1371
1372         /* Disallow if dst file already exists. */
1373         if (VALID_STAT(smb_fname_dst->st)) {
1374                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1375                 goto out;
1376         }
1377
1378         /* No links from a directory. */
1379         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1380                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1381                 goto out;
1382         }
1383
1384         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1385                   smb_fname_str_dbg(smb_fname_src),
1386                   smb_fname_str_dbg(smb_fname_dst)));
1387
1388         status = SMB_VFS_CREATE_FILE(
1389                 conn,                                   /* conn */
1390                 req,                                    /* req */
1391                 0,                                      /* root_dir_fid */
1392                 smb_fname_src,                          /* fname */
1393                 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1394                         FILE_READ_EA,                   /* access_mask */
1395                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1396                     FILE_SHARE_DELETE),
1397                 FILE_OPEN,                              /* create_disposition*/
1398                 0,                                      /* create_options */
1399                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1400                 NO_OPLOCK,                              /* oplock_request */
1401                 0,                                      /* allocation_size */
1402                 0,                                      /* private_flags */
1403                 NULL,                                   /* sd */
1404                 NULL,                                   /* ea_list */
1405                 &fsp1,                                  /* result */
1406                 &info);                                 /* pinfo */
1407
1408         if (!NT_STATUS_IS_OK(status)) {
1409                 goto out;
1410         }
1411
1412         status = SMB_VFS_CREATE_FILE(
1413                 conn,                                   /* conn */
1414                 req,                                    /* req */
1415                 0,                                      /* root_dir_fid */
1416                 smb_fname_dst,                          /* fname */
1417                 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1418                         FILE_WRITE_EA,                  /* access_mask */
1419                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1420                     FILE_SHARE_DELETE),
1421                 FILE_CREATE,                            /* create_disposition*/
1422                 0,                                      /* create_options */
1423                 fattr,                                  /* file_attributes */
1424                 NO_OPLOCK,                              /* oplock_request */
1425                 0,                                      /* allocation_size */
1426                 0,                                      /* private_flags */
1427                 NULL,                                   /* sd */
1428                 NULL,                                   /* ea_list */
1429                 &fsp2,                                  /* result */
1430                 &info);                                 /* pinfo */
1431
1432         if (!NT_STATUS_IS_OK(status)) {
1433                 close_file(NULL, fsp1, ERROR_CLOSE);
1434                 goto out;
1435         }
1436
1437         if (smb_fname_src->st.st_ex_size) {
1438                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1439         }
1440
1441         /*
1442          * As we are opening fsp1 read-only we only expect
1443          * an error on close on fsp2 if we are out of space.
1444          * Thus we don't look at the error return from the
1445          * close of fsp1.
1446          */
1447         close_file(NULL, fsp1, NORMAL_CLOSE);
1448
1449         /* Ensure the modtime is set correctly on the destination file. */
1450         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1451
1452         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1453
1454         /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1455            creates the file. This isn't the correct thing to do in the copy
1456            case. JRA */
1457         if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1458                             NULL)) {
1459                 status = NT_STATUS_NO_MEMORY;
1460                 goto out;
1461         }
1462         file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1463         TALLOC_FREE(parent);
1464
1465         if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1466                 status = NT_STATUS_DISK_FULL;
1467                 goto out;
1468         }
1469  out:
1470         if (!NT_STATUS_IS_OK(status)) {
1471                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1472                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1473                         smb_fname_str_dbg(smb_fname_dst)));
1474         }
1475
1476         return status;
1477 }
1478
1479 /****************************************************************************
1480  Reply to a NT rename request.
1481 ****************************************************************************/
1482
1483 void reply_ntrename(struct smb_request *req)
1484 {
1485         connection_struct *conn = req->conn;
1486         struct smb_filename *smb_fname_old = NULL;
1487         struct smb_filename *smb_fname_new = NULL;
1488         char *oldname = NULL;
1489         char *newname = NULL;
1490         const char *p;
1491         NTSTATUS status;
1492         bool src_has_wcard = False;
1493         bool dest_has_wcard = False;
1494         uint32 attrs;
1495         uint32_t ucf_flags_src = 0;
1496         uint32_t ucf_flags_dst = 0;
1497         uint16 rename_type;
1498         TALLOC_CTX *ctx = talloc_tos();
1499         bool stream_rename = false;
1500
1501         START_PROFILE(SMBntrename);
1502
1503         if (req->wct < 4) {
1504                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1505                 goto out;
1506         }
1507
1508         attrs = SVAL(req->vwv+0, 0);
1509         rename_type = SVAL(req->vwv+1, 0);
1510
1511         p = (const char *)req->buf + 1;
1512         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1513                                        &status, &src_has_wcard);
1514         if (!NT_STATUS_IS_OK(status)) {
1515                 reply_nterror(req, status);
1516                 goto out;
1517         }
1518
1519         if (ms_has_wild(oldname)) {
1520                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1521                 goto out;
1522         }
1523
1524         p++;
1525         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1526                                        &status, &dest_has_wcard);
1527         if (!NT_STATUS_IS_OK(status)) {
1528                 reply_nterror(req, status);
1529                 goto out;
1530         }
1531
1532         if (!lp_posix_pathnames()) {
1533                 /* The newname must begin with a ':' if the
1534                    oldname contains a ':'. */
1535                 if (strchr_m(oldname, ':')) {
1536                         if (newname[0] != ':') {
1537                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1538                                 goto out;
1539                         }
1540                         stream_rename = true;
1541                 }
1542         }
1543
1544         /*
1545          * If this is a rename operation, allow wildcards and save the
1546          * destination's last component.
1547          */
1548         if (rename_type == RENAME_FLAG_RENAME) {
1549                 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1550                 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1551         }
1552
1553         /* rename_internals() calls unix_convert(), so don't call it here. */
1554         status = filename_convert(ctx, conn,
1555                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1556                                   oldname,
1557                                   ucf_flags_src,
1558                                   NULL,
1559                                   &smb_fname_old);
1560         if (!NT_STATUS_IS_OK(status)) {
1561                 if (NT_STATUS_EQUAL(status,
1562                                     NT_STATUS_PATH_NOT_COVERED)) {
1563                         reply_botherror(req,
1564                                         NT_STATUS_PATH_NOT_COVERED,
1565                                         ERRSRV, ERRbadpath);
1566                         goto out;
1567                 }
1568                 reply_nterror(req, status);
1569                 goto out;
1570         }
1571
1572         status = filename_convert(ctx, conn,
1573                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1574                                   newname,
1575                                   ucf_flags_dst,
1576                                   &dest_has_wcard,
1577                                   &smb_fname_new);
1578         if (!NT_STATUS_IS_OK(status)) {
1579                 if (NT_STATUS_EQUAL(status,
1580                                     NT_STATUS_PATH_NOT_COVERED)) {
1581                         reply_botherror(req,
1582                                         NT_STATUS_PATH_NOT_COVERED,
1583                                         ERRSRV, ERRbadpath);
1584                         goto out;
1585                 }
1586                 reply_nterror(req, status);
1587                 goto out;
1588         }
1589
1590         if (stream_rename) {
1591                 /* smb_fname_new must be the same as smb_fname_old. */
1592                 TALLOC_FREE(smb_fname_new->base_name);
1593                 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1594                                                 smb_fname_old->base_name);
1595                 if (!smb_fname_new->base_name) {
1596                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1597                         goto out;
1598                 }
1599         }
1600
1601         DEBUG(3,("reply_ntrename: %s -> %s\n",
1602                  smb_fname_str_dbg(smb_fname_old),
1603                  smb_fname_str_dbg(smb_fname_new)));
1604
1605         switch(rename_type) {
1606                 case RENAME_FLAG_RENAME:
1607                         status = rename_internals(ctx, conn, req,
1608                                                   smb_fname_old, smb_fname_new,
1609                                                   attrs, False, src_has_wcard,
1610                                                   dest_has_wcard,
1611                                                   DELETE_ACCESS);
1612                         break;
1613                 case RENAME_FLAG_HARD_LINK:
1614                         if (src_has_wcard || dest_has_wcard) {
1615                                 /* No wildcards. */
1616                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1617                         } else {
1618                                 status = hardlink_internals(ctx, conn,
1619                                                             req,
1620                                                             false,
1621                                                             smb_fname_old,
1622                                                             smb_fname_new);
1623                         }
1624                         break;
1625                 case RENAME_FLAG_COPY:
1626                         if (src_has_wcard || dest_has_wcard) {
1627                                 /* No wildcards. */
1628                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1629                         } else {
1630                                 status = copy_internals(ctx, conn, req,
1631                                                         smb_fname_old,
1632                                                         smb_fname_new,
1633                                                         attrs);
1634                         }
1635                         break;
1636                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1637                         status = NT_STATUS_INVALID_PARAMETER;
1638                         break;
1639                 default:
1640                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1641                         break;
1642         }
1643
1644         if (!NT_STATUS_IS_OK(status)) {
1645                 if (open_was_deferred(req->mid)) {
1646                         /* We have re-scheduled this call. */
1647                         goto out;
1648                 }
1649
1650                 reply_nterror(req, status);
1651                 goto out;
1652         }
1653
1654         reply_outbuf(req, 0, 0);
1655  out:
1656         END_PROFILE(SMBntrename);
1657         return;
1658 }
1659
1660 /****************************************************************************
1661  Reply to a notify change - queue the request and
1662  don't allow a directory to be opened.
1663 ****************************************************************************/
1664
1665 static void smbd_smb1_notify_reply(struct smb_request *req,
1666                                    NTSTATUS error_code,
1667                                    uint8_t *buf, size_t len)
1668 {
1669         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1670 }
1671
1672 static void call_nt_transact_notify_change(connection_struct *conn,
1673                                            struct smb_request *req,
1674                                            uint16 **ppsetup,
1675                                            uint32 setup_count,
1676                                            char **ppparams,
1677                                            uint32 parameter_count,
1678                                            char **ppdata, uint32 data_count,
1679                                            uint32 max_data_count,
1680                                            uint32 max_param_count)
1681 {
1682         uint16 *setup = *ppsetup;
1683         files_struct *fsp;
1684         uint32 filter;
1685         NTSTATUS status;
1686         bool recursive;
1687
1688         if(setup_count < 6) {
1689                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1690                 return;
1691         }
1692
1693         fsp = file_fsp(req, SVAL(setup,4));
1694         filter = IVAL(setup, 0);
1695         recursive = (SVAL(setup, 6) != 0) ? True : False;
1696
1697         DEBUG(3,("call_nt_transact_notify_change\n"));
1698
1699         if(!fsp) {
1700                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1701                 return;
1702         }
1703
1704         {
1705                 char *filter_string;
1706
1707                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1708                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1709                         return;
1710                 }
1711
1712                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1713                          "called on %s, filter = %s, recursive = %d\n",
1714                          fsp_str_dbg(fsp), filter_string, recursive));
1715
1716                 TALLOC_FREE(filter_string);
1717         }
1718
1719         if((!fsp->is_directory) || (conn != fsp->conn)) {
1720                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1721                 return;
1722         }
1723
1724         if (fsp->notify == NULL) {
1725
1726                 status = change_notify_create(fsp, filter, recursive);
1727
1728                 if (!NT_STATUS_IS_OK(status)) {
1729                         DEBUG(10, ("change_notify_create returned %s\n",
1730                                    nt_errstr(status)));
1731                         reply_nterror(req, status);
1732                         return;
1733                 }
1734         }
1735
1736         if (fsp->notify->num_changes != 0) {
1737
1738                 /*
1739                  * We've got changes pending, respond immediately
1740                  */
1741
1742                 /*
1743                  * TODO: write a torture test to check the filtering behaviour
1744                  * here.
1745                  */
1746
1747                 change_notify_reply(req,
1748                                     NT_STATUS_OK,
1749                                     max_param_count,
1750                                     fsp->notify,
1751                                     smbd_smb1_notify_reply);
1752
1753                 /*
1754                  * change_notify_reply() above has independently sent its
1755                  * results
1756                  */
1757                 return;
1758         }
1759
1760         /*
1761          * No changes pending, queue the request
1762          */
1763
1764         status = change_notify_add_request(req,
1765                         max_param_count,
1766                         filter,
1767                         recursive, fsp,
1768                         smbd_smb1_notify_reply);
1769         if (!NT_STATUS_IS_OK(status)) {
1770                 reply_nterror(req, status);
1771         }
1772         return;
1773 }
1774
1775 /****************************************************************************
1776  Reply to an NT transact rename command.
1777 ****************************************************************************/
1778
1779 static void call_nt_transact_rename(connection_struct *conn,
1780                                     struct smb_request *req,
1781                                     uint16 **ppsetup, uint32 setup_count,
1782                                     char **ppparams, uint32 parameter_count,
1783                                     char **ppdata, uint32 data_count,
1784                                     uint32 max_data_count)
1785 {
1786         char *params = *ppparams;
1787         char *new_name = NULL;
1788         files_struct *fsp = NULL;
1789         bool dest_has_wcard = False;
1790         NTSTATUS status;
1791         TALLOC_CTX *ctx = talloc_tos();
1792
1793         if(parameter_count < 5) {
1794                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1795                 return;
1796         }
1797
1798         fsp = file_fsp(req, SVAL(params, 0));
1799         if (!check_fsp(conn, req, fsp)) {
1800                 return;
1801         }
1802         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1803                               parameter_count - 4,
1804                               STR_TERMINATE, &status, &dest_has_wcard);
1805         if (!NT_STATUS_IS_OK(status)) {
1806                 reply_nterror(req, status);
1807                 return;
1808         }
1809
1810         /*
1811          * W2K3 ignores this request as the RAW-RENAME test
1812          * demonstrates, so we do.
1813          */
1814         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1815
1816         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1817                  fsp_str_dbg(fsp), new_name));
1818
1819         return;
1820 }
1821
1822 /******************************************************************************
1823  Fake up a completely empty SD.
1824 *******************************************************************************/
1825
1826 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1827 {
1828         size_t sd_size;
1829
1830         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1831         if(!*ppsd) {
1832                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1833                 return NT_STATUS_NO_MEMORY;
1834         }
1835
1836         return NT_STATUS_OK;
1837 }
1838
1839 /****************************************************************************
1840  Reply to query a security descriptor.
1841  Callable from SMB2 and SMB2.
1842  If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1843  the required size.
1844 ****************************************************************************/
1845
1846 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1847                                         TALLOC_CTX *mem_ctx,
1848                                         files_struct *fsp,
1849                                         uint32_t security_info_wanted,
1850                                         uint32_t max_data_count,
1851                                         uint8_t **ppmarshalled_sd,
1852                                         size_t *psd_size)
1853 {
1854         NTSTATUS status;
1855         struct security_descriptor *psd = NULL;
1856
1857         /*
1858          * Get the permissions to return.
1859          */
1860
1861         if ((security_info_wanted & SECINFO_SACL) &&
1862                         !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1863                 return NT_STATUS_ACCESS_DENIED;
1864         }
1865
1866         if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1867                         !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1868                 return NT_STATUS_ACCESS_DENIED;
1869         }
1870
1871         if (!lp_nt_acl_support(SNUM(conn))) {
1872                 status = get_null_nt_acl(mem_ctx, &psd);
1873         } else {
1874                 status = SMB_VFS_FGET_NT_ACL(
1875                         fsp, security_info_wanted, &psd);
1876         }
1877         if (!NT_STATUS_IS_OK(status)) {
1878                 return status;
1879         }
1880
1881         if (!(security_info_wanted & SECINFO_OWNER)) {
1882                 psd->owner_sid = NULL;
1883         }
1884         if (!(security_info_wanted & SECINFO_GROUP)) {
1885                 psd->group_sid = NULL;
1886         }
1887         if (!(security_info_wanted & SECINFO_DACL)) {
1888                 psd->dacl = NULL;
1889         }
1890         if (!(security_info_wanted & SECINFO_SACL)) {
1891                 psd->sacl = NULL;
1892         }
1893
1894         /* If the SACL/DACL is NULL, but was requested, we mark that it is
1895          * present in the reply to match Windows behavior */
1896         if (psd->sacl == NULL &&
1897             security_info_wanted & SECINFO_SACL)
1898                 psd->type |= SEC_DESC_SACL_PRESENT;
1899         if (psd->dacl == NULL &&
1900             security_info_wanted & SECINFO_DACL)
1901                 psd->type |= SEC_DESC_DACL_PRESENT;
1902
1903         *psd_size = ndr_size_security_descriptor(psd, 0);
1904
1905         DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1906                 (unsigned long)*psd_size));
1907
1908         if (DEBUGLEVEL >= 10) {
1909                 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1910                           fsp_str_dbg(fsp)));
1911                 NDR_PRINT_DEBUG(security_descriptor, psd);
1912         }
1913
1914         if (max_data_count < *psd_size) {
1915                 TALLOC_FREE(psd);
1916                 return NT_STATUS_BUFFER_TOO_SMALL;
1917         }
1918
1919         status = marshall_sec_desc(mem_ctx, psd,
1920                                    ppmarshalled_sd, psd_size);
1921
1922         if (!NT_STATUS_IS_OK(status)) {
1923                 TALLOC_FREE(psd);
1924                 return status;
1925         }
1926
1927         TALLOC_FREE(psd);
1928         return NT_STATUS_OK;
1929 }
1930
1931 /****************************************************************************
1932  SMB1 reply to query a security descriptor.
1933 ****************************************************************************/
1934
1935 static void call_nt_transact_query_security_desc(connection_struct *conn,
1936                                                  struct smb_request *req,
1937                                                  uint16 **ppsetup,
1938                                                  uint32 setup_count,
1939                                                  char **ppparams,
1940                                                  uint32 parameter_count,
1941                                                  char **ppdata,
1942                                                  uint32 data_count,
1943                                                  uint32 max_data_count)
1944 {
1945         char *params = *ppparams;
1946         char *data = *ppdata;
1947         size_t sd_size = 0;
1948         uint32 security_info_wanted;
1949         files_struct *fsp = NULL;
1950         NTSTATUS status;
1951         uint8_t *marshalled_sd = NULL;
1952
1953         if(parameter_count < 8) {
1954                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1955                 return;
1956         }
1957
1958         fsp = file_fsp(req, SVAL(params,0));
1959         if(!fsp) {
1960                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1961                 return;
1962         }
1963
1964         security_info_wanted = IVAL(params,4);
1965
1966         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1967                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1968                  (unsigned int)security_info_wanted));
1969
1970         params = nttrans_realloc(ppparams, 4);
1971         if(params == NULL) {
1972                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1973                 return;
1974         }
1975
1976         /*
1977          * Get the permissions to return.
1978          */
1979
1980         status = smbd_do_query_security_desc(conn,
1981                                         talloc_tos(),
1982                                         fsp,
1983                                         security_info_wanted,
1984                                         max_data_count,
1985                                         &marshalled_sd,
1986                                         &sd_size);
1987
1988         if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
1989                 SIVAL(params,0,(uint32_t)sd_size);
1990                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1991                         params, 4, NULL, 0);
1992                 return;
1993         }
1994
1995         if (!NT_STATUS_IS_OK(status)) {
1996                 reply_nterror(req, status);
1997                 return;
1998         }
1999
2000         SMB_ASSERT(sd_size > 0);
2001
2002         SIVAL(params,0,(uint32_t)sd_size);
2003
2004         if (max_data_count < sd_size) {
2005                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2006                                 params, 4, NULL, 0);
2007                 return;
2008         }
2009
2010         /*
2011          * Allocate the data we will return.
2012          */
2013
2014         data = nttrans_realloc(ppdata, sd_size);
2015         if(data == NULL) {
2016                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2017                 return;
2018         }
2019
2020         memcpy(data, marshalled_sd, sd_size);
2021
2022         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2023
2024         return;
2025 }
2026
2027 /****************************************************************************
2028  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2029 ****************************************************************************/
2030
2031 static void call_nt_transact_set_security_desc(connection_struct *conn,
2032                                                struct smb_request *req,
2033                                                uint16 **ppsetup,
2034                                                uint32 setup_count,
2035                                                char **ppparams,
2036                                                uint32 parameter_count,
2037                                                char **ppdata,
2038                                                uint32 data_count,
2039                                                uint32 max_data_count)
2040 {
2041         char *params= *ppparams;
2042         char *data = *ppdata;
2043         files_struct *fsp = NULL;
2044         uint32 security_info_sent = 0;
2045         NTSTATUS status;
2046
2047         if(parameter_count < 8) {
2048                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2049                 return;
2050         }
2051
2052         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2053                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2054                 return;
2055         }
2056
2057         if (!CAN_WRITE(fsp->conn)) {
2058                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2059                 return;
2060         }
2061
2062         if(!lp_nt_acl_support(SNUM(conn))) {
2063                 goto done;
2064         }
2065
2066         security_info_sent = IVAL(params,4);
2067
2068         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2069                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2070
2071         if (data_count == 0) {
2072                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2073                 return;
2074         }
2075
2076         status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
2077
2078         if (!NT_STATUS_IS_OK(status)) {
2079                 reply_nterror(req, status);
2080                 return;
2081         }
2082
2083   done:
2084         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2085         return;
2086 }
2087
2088 /****************************************************************************
2089  Reply to NT IOCTL
2090 ****************************************************************************/
2091
2092 static void call_nt_transact_ioctl(connection_struct *conn,
2093                                    struct smb_request *req,
2094                                    uint16 **ppsetup, uint32 setup_count,
2095                                    char **ppparams, uint32 parameter_count,
2096                                    char **ppdata, uint32 data_count,
2097                                    uint32 max_data_count)
2098 {
2099         uint32 function;
2100         uint16 fidnum;
2101         files_struct *fsp;
2102         uint8 isFSctl;
2103         uint8 compfilter;
2104         char *pdata = *ppdata;
2105
2106         if (setup_count != 8) {
2107                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2108                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2109                 return;
2110         }
2111
2112         function = IVAL(*ppsetup, 0);
2113         fidnum = SVAL(*ppsetup, 4);
2114         isFSctl = CVAL(*ppsetup, 6);
2115         compfilter = CVAL(*ppsetup, 7);
2116
2117         DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2118                  function, fidnum, isFSctl, compfilter));
2119
2120         fsp=file_fsp(req, fidnum);
2121         /* this check is done in each implemented function case for now
2122            because I don't want to break anything... --metze
2123         FSP_BELONGS_CONN(fsp,conn);*/
2124
2125         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2126
2127         switch (function) {
2128         case FSCTL_SET_SPARSE:
2129         {
2130                 bool set_sparse = true;
2131                 NTSTATUS status;
2132
2133                 if (data_count >= 1 && pdata[0] == 0) {
2134                         set_sparse = false;
2135                 }
2136
2137                 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X]set[%u]\n",
2138                          fidnum, set_sparse));
2139
2140                 if (!check_fsp_open(conn, req, fsp)) {
2141                         return;
2142                 }
2143
2144                 status = file_set_sparse(conn, fsp, set_sparse);
2145                 if (!NT_STATUS_IS_OK(status)) {
2146                         DEBUG(9,("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
2147                                  smb_fname_str_dbg(fsp->fsp_name), set_sparse, nt_errstr(status)));
2148                         reply_nterror(req, status);
2149                         return;
2150                 }
2151
2152                 DEBUG(10,("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
2153                          smb_fname_str_dbg(fsp->fsp_name), set_sparse, nt_errstr(status)));
2154                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2155                 return;
2156         }
2157         case FSCTL_CREATE_OR_GET_OBJECT_ID:
2158         {
2159                 unsigned char objid[16];
2160
2161                 /* This should return the object-id on this file.
2162                  * I think I'll make this be the inode+dev. JRA.
2163                  */
2164
2165                 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2166
2167                 if (!check_fsp_open(conn, req, fsp)) {
2168                         return;
2169                 }
2170
2171                 data_count = 64;
2172                 pdata = nttrans_realloc(ppdata, data_count);
2173                 if (pdata == NULL) {
2174                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2175                         return;
2176                 }
2177
2178                 /* For backwards compatibility only store the dev/inode. */
2179                 push_file_id_16(pdata, &fsp->file_id);
2180                 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2181                 push_file_id_16(pdata+32, &fsp->file_id);
2182                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2183                                 pdata, data_count);
2184                 return;
2185         }
2186
2187         case FSCTL_GET_REPARSE_POINT:
2188                 /* pretend this fail - my winXP does it like this
2189                  * --metze
2190                  */
2191
2192                 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2193                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2194                 return;
2195
2196         case FSCTL_SET_REPARSE_POINT:
2197                 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2198                  * --metze
2199                  */
2200
2201                 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2202                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2203                 return;
2204
2205         case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2206         {
2207                 /*
2208                  * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2209                  * and return their volume names.  If max_data_count is 16, then it is just
2210                  * asking for the number of volumes and length of the combined names.
2211                  *
2212                  * pdata is the data allocated by our caller, but that uses
2213                  * total_data_count (which is 0 in our case) rather than max_data_count.
2214                  * Allocate the correct amount and return the pointer to let
2215                  * it be deallocated when we return.
2216                  */
2217                 struct shadow_copy_data *shadow_data = NULL;
2218                 bool labels = False;
2219                 uint32 labels_data_count = 0;
2220                 uint32 i;
2221                 char *cur_pdata;
2222
2223                 if (!check_fsp_open(conn, req, fsp)) {
2224                         return;
2225                 }
2226
2227                 if (max_data_count < 16) {
2228                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2229                                 max_data_count));
2230                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2231                         return;
2232                 }
2233
2234                 if (max_data_count > 16) {
2235                         labels = True;
2236                 }
2237
2238                 shadow_data = talloc_zero(talloc_tos(),
2239                                             struct shadow_copy_data);
2240                 if (shadow_data == NULL) {
2241                         DEBUG(0,("TALLOC_ZERO() failed!\n"));
2242                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2243                         return;
2244                 }
2245
2246                 /*
2247                  * Call the VFS routine to actually do the work.
2248                  */
2249                 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2250                         TALLOC_FREE(shadow_data);
2251                         if (errno == ENOSYS) {
2252                                 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2253                                         conn->connectpath));
2254                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2255                                 return;
2256                         } else {
2257                                 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2258                                         conn->connectpath));
2259                                 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2260                                 return;
2261                         }
2262                 }
2263
2264                 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2265
2266                 if (!labels) {
2267                         data_count = 16;
2268                 } else {
2269                         data_count = 12+labels_data_count+4;
2270                 }
2271
2272                 if (max_data_count<data_count) {
2273                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2274                                 max_data_count,data_count));
2275                         TALLOC_FREE(shadow_data);
2276                         reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2277                         return;
2278                 }
2279
2280                 pdata = nttrans_realloc(ppdata, data_count);
2281                 if (pdata == NULL) {
2282                         TALLOC_FREE(shadow_data);
2283                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2284                         return;
2285                 }
2286
2287                 cur_pdata = pdata;
2288
2289                 /* num_volumes 4 bytes */
2290                 SIVAL(pdata,0,shadow_data->num_volumes);
2291
2292                 if (labels) {
2293                         /* num_labels 4 bytes */
2294                         SIVAL(pdata,4,shadow_data->num_volumes);
2295                 }
2296
2297                 /* needed_data_count 4 bytes */
2298                 SIVAL(pdata, 8, labels_data_count+4);
2299
2300                 cur_pdata+=12;
2301
2302                 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2303                           shadow_data->num_volumes, fsp_str_dbg(fsp)));
2304                 if (labels && shadow_data->labels) {
2305                         for (i=0;i<shadow_data->num_volumes;i++) {
2306                                 srvstr_push(pdata, req->flags2,
2307                                             cur_pdata, shadow_data->labels[i],
2308                                             2*sizeof(SHADOW_COPY_LABEL),
2309                                             STR_UNICODE|STR_TERMINATE);
2310                                 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2311                                 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2312                         }
2313                 }
2314
2315                 TALLOC_FREE(shadow_data);
2316
2317                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2318                                 pdata, data_count);
2319
2320                 return;
2321         }
2322
2323         case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2324         {
2325                 /* pretend this succeeded -
2326                  *
2327                  * we have to send back a list with all files owned by this SID
2328                  *
2329                  * but I have to check that --metze
2330                  */
2331                 struct dom_sid sid;
2332                 uid_t uid;
2333                 size_t sid_len;
2334
2335                 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2336
2337                 if (!check_fsp_open(conn, req, fsp)) {
2338                         return;
2339                 }
2340
2341                 if (data_count < 8) {
2342                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2343                         return;
2344                 }
2345
2346                 sid_len = MIN(data_count-4,SID_MAX_SIZE);
2347
2348                 /* unknown 4 bytes: this is not the length of the sid :-(  */
2349                 /*unknown = IVAL(pdata,0);*/
2350
2351                 if (!sid_parse(pdata+4,sid_len,&sid)) {
2352                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2353                         return;
2354                 }
2355                 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2356
2357                 if (!sid_to_uid(&sid, &uid)) {
2358                         DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2359                                  sid_string_dbg(&sid),
2360                                  (unsigned long)sid_len));
2361                         uid = (-1);
2362                 }
2363
2364                 /* we can take a look at the find source :-)
2365                  *
2366                  * find ./ -uid $uid  -name '*'   is what we need here
2367                  *
2368                  *
2369                  * and send 4bytes len and then NULL terminated unicode strings
2370                  * for each file
2371                  *
2372                  * but I don't know how to deal with the paged results
2373                  * (maybe we can hang the result anywhere in the fsp struct)
2374                  *
2375                  * we don't send all files at once
2376                  * and at the next we should *not* start from the beginning,
2377                  * so we have to cache the result
2378                  *
2379                  * --metze
2380                  */
2381
2382                 /* this works for now... */
2383                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2384                 return;
2385         }
2386         case FSCTL_QUERY_ALLOCATED_RANGES:
2387         {
2388                 /* FIXME: This is just a dummy reply, telling that all of the
2389                  * file is allocated. MKS cp needs that.
2390                  * Adding the real allocated ranges via FIEMAP on Linux
2391                  * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
2392                  * this FSCTL correct for sparse files.
2393                  */
2394                 NTSTATUS status;
2395                 uint64_t offset, length;
2396
2397                 if (!check_fsp_open(conn, req, fsp)) {
2398                         return;
2399                 }
2400
2401                 if (data_count != 16) {
2402                         DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
2403                                 data_count));
2404                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2405                         return;
2406                 }
2407
2408                 if (max_data_count < 16) {
2409                         DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_data_count(%u) < 16 is invalid!\n",
2410                                 max_data_count));
2411                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2412                         return;
2413                 }
2414
2415                 offset = BVAL(pdata,0);
2416                 length = BVAL(pdata,8);
2417
2418                 if (offset + length < offset) {
2419                         /* No 64-bit integer wrap. */
2420                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2421                         return;
2422                 }
2423
2424                 status = vfs_stat_fsp(fsp);
2425                 if (!NT_STATUS_IS_OK(status)) {
2426                         reply_nterror(req, status);
2427                         return;
2428                 }
2429
2430                 if (offset > fsp->fsp_name->st.st_ex_size ||
2431                                 fsp->fsp_name->st.st_ex_size == 0 ||
2432                                 length == 0) {
2433                         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2434                 } else {
2435                         uint64_t end = offset + length;
2436                         end = MIN(end, fsp->fsp_name->st.st_ex_size);
2437                         SBVAL(pdata,0,0);
2438                         SBVAL(pdata,8,end);
2439                         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2440                                 pdata, 16);
2441                 }
2442                 return;
2443         }
2444         case FSCTL_IS_VOLUME_DIRTY:
2445                 DEBUG(10,("FSCTL_IS_VOLUME_DIRTY: called on FID[0x%04X] "
2446                           "(but not implemented)\n", (int)fidnum));
2447                 /*
2448                  * http://msdn.microsoft.com/en-us/library/cc232128%28PROT.10%29.aspx
2449                  * says we have to respond with NT_STATUS_INVALID_PARAMETER
2450                  */
2451                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2452                 return;
2453         default:
2454                 /* Only print this once... */
2455                 if (!logged_ioctl_message) {
2456                         logged_ioctl_message = true;
2457                         DEBUG(2,("call_nt_transact_ioctl(0x%x): "
2458                                  "Currently not implemented.\n",
2459                                  function));
2460                 }
2461         }
2462
2463         reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2464 }
2465
2466
2467 #ifdef HAVE_SYS_QUOTAS
2468 /****************************************************************************
2469  Reply to get user quota
2470 ****************************************************************************/
2471
2472 static void call_nt_transact_get_user_quota(connection_struct *conn,
2473                                             struct smb_request *req,
2474                                             uint16 **ppsetup,
2475                                             uint32 setup_count,
2476                                             char **ppparams,
2477                                             uint32 parameter_count,
2478                                             char **ppdata,
2479                                             uint32 data_count,
2480                                             uint32 max_data_count)
2481 {
2482         NTSTATUS nt_status = NT_STATUS_OK;
2483         char *params = *ppparams;
2484         char *pdata = *ppdata;
2485         char *entry;
2486         int data_len=0,param_len=0;
2487         int qt_len=0;
2488         int entry_len = 0;
2489         files_struct *fsp = NULL;
2490         uint16 level = 0;
2491         size_t sid_len;
2492         struct dom_sid sid;
2493         bool start_enum = True;
2494         SMB_NTQUOTA_STRUCT qt;
2495         SMB_NTQUOTA_LIST *tmp_list;
2496         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2497
2498         ZERO_STRUCT(qt);
2499
2500         /* access check */
2501         if (get_current_uid(conn) != 0) {
2502                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2503                          "[%s]\n", lp_servicename(SNUM(conn)),
2504                          conn->session_info->unix_name));
2505                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2506                 return;
2507         }
2508
2509         /*
2510          * Ensure minimum number of parameters sent.
2511          */
2512
2513         if (parameter_count < 4) {
2514                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2515                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2516                 return;
2517         }
2518
2519         /* maybe we can check the quota_fnum */
2520         fsp = file_fsp(req, SVAL(params,0));
2521         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2522                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2523                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2524                 return;
2525         }
2526
2527         /* the NULL pointer checking for fsp->fake_file_handle->pd
2528          * is done by CHECK_NTQUOTA_HANDLE_OK()
2529          */
2530         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2531
2532         level = SVAL(params,2);
2533
2534         /* unknown 12 bytes leading in params */
2535
2536         switch (level) {
2537                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2538                         /* seems that we should continue with the enum here --metze */
2539
2540                         if (qt_handle->quota_list!=NULL &&
2541                             qt_handle->tmp_list==NULL) {
2542
2543                                 /* free the list */
2544                                 free_ntquota_list(&(qt_handle->quota_list));
2545
2546                                 /* Realloc the size of parameters and data we will return */
2547                                 param_len = 4;
2548                                 params = nttrans_realloc(ppparams, param_len);
2549                                 if(params == NULL) {
2550                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2551                                         return;
2552                                 }
2553
2554                                 data_len = 0;
2555                                 SIVAL(params,0,data_len);
2556
2557                                 break;
2558                         }
2559
2560                         start_enum = False;
2561
2562                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2563
2564                         if (qt_handle->quota_list==NULL &&
2565                                 qt_handle->tmp_list==NULL) {
2566                                 start_enum = True;
2567                         }
2568
2569                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2570                                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2571                                 return;
2572                         }
2573
2574                         /* Realloc the size of parameters and data we will return */
2575                         param_len = 4;
2576                         params = nttrans_realloc(ppparams, param_len);
2577                         if(params == NULL) {
2578                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2579                                 return;
2580                         }
2581
2582                         /* we should not trust the value in max_data_count*/
2583                         max_data_count = MIN(max_data_count,2048);
2584
2585                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2586                         if(pdata == NULL) {
2587                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2588                                 return;
2589                         }
2590
2591                         entry = pdata;
2592
2593                         /* set params Size of returned Quota Data 4 bytes*/
2594                         /* but set it later when we know it */
2595
2596                         /* for each entry push the data */
2597
2598                         if (start_enum) {
2599                                 qt_handle->tmp_list = qt_handle->quota_list;
2600                         }
2601
2602                         tmp_list = qt_handle->tmp_list;
2603
2604                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2605                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2606
2607                                 sid_len = ndr_size_dom_sid(
2608                                         &tmp_list->quotas->sid, 0);
2609                                 entry_len = 40 + sid_len;
2610
2611                                 /* nextoffset entry 4 bytes */
2612                                 SIVAL(entry,0,entry_len);
2613
2614                                 /* then the len of the SID 4 bytes */
2615                                 SIVAL(entry,4,sid_len);
2616
2617                                 /* unknown data 8 bytes uint64_t */
2618                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2619
2620                                 /* the used disk space 8 bytes uint64_t */
2621                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2622
2623                                 /* the soft quotas 8 bytes uint64_t */
2624                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2625
2626                                 /* the hard quotas 8 bytes uint64_t */
2627                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2628
2629                                 /* and now the SID */
2630                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2631                         }
2632
2633                         qt_handle->tmp_list = tmp_list;
2634
2635                         /* overwrite the offset of the last entry */
2636                         SIVAL(entry-entry_len,0,0);
2637
2638                         data_len = 4+qt_len;
2639                         /* overwrite the params quota_data_len */
2640                         SIVAL(params,0,data_len);
2641
2642                         break;
2643
2644                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2645
2646                         /* unknown 4 bytes IVAL(pdata,0) */
2647
2648                         if (data_count < 8) {
2649                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2650                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2651                                 return;
2652                         }
2653
2654                         sid_len = IVAL(pdata,4);
2655                         /* Ensure this is less than 1mb. */
2656                         if (sid_len > (1024*1024)) {
2657                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2658                                 return;
2659                         }
2660
2661                         if (data_count < 8+sid_len) {
2662                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2663                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2664                                 return;
2665                         }
2666
2667                         data_len = 4+40+sid_len;
2668
2669                         if (max_data_count < data_len) {
2670                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2671                                         max_data_count, data_len));
2672                                 param_len = 4;
2673                                 SIVAL(params,0,data_len);
2674                                 data_len = 0;
2675                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2676                                 break;
2677                         }
2678
2679                         if (!sid_parse(pdata+8,sid_len,&sid)) {
2680                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2681                                 return;
2682                         }
2683
2684                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2685                                 ZERO_STRUCT(qt);
2686                                 /*
2687                                  * we have to return zero's in all fields
2688                                  * instead of returning an error here
2689                                  * --metze
2690                                  */
2691                         }
2692
2693                         /* Realloc the size of parameters and data we will return */
2694                         param_len = 4;
2695                         params = nttrans_realloc(ppparams, param_len);
2696                         if(params == NULL) {
2697                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2698                                 return;
2699                         }
2700
2701                         pdata = nttrans_realloc(ppdata, data_len);
2702                         if(pdata == NULL) {
2703                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2704                                 return;
2705                         }
2706
2707                         entry = pdata;
2708
2709                         /* set params Size of returned Quota Data 4 bytes*/
2710                         SIVAL(params,0,data_len);
2711
2712                         /* nextoffset entry 4 bytes */
2713                         SIVAL(entry,0,0);
2714
2715                         /* then the len of the SID 4 bytes */
2716                         SIVAL(entry,4,sid_len);
2717
2718                         /* unknown data 8 bytes uint64_t */
2719                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2720
2721                         /* the used disk space 8 bytes uint64_t */
2722                         SBIG_UINT(entry,16,qt.usedspace);
2723
2724                         /* the soft quotas 8 bytes uint64_t */
2725                         SBIG_UINT(entry,24,qt.softlim);
2726
2727                         /* the hard quotas 8 bytes uint64_t */
2728                         SBIG_UINT(entry,32,qt.hardlim);
2729
2730                         /* and now the SID */
2731                         sid_linearize(entry+40, sid_len, &sid);
2732
2733                         break;
2734
2735                 default:
2736                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2737                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2738                         return;
2739                         break;
2740         }
2741
2742         send_nt_replies(conn, req, nt_status, params, param_len,
2743                         pdata, data_len);
2744 }
2745
2746 /****************************************************************************
2747  Reply to set user quota
2748 ****************************************************************************/
2749
2750 static void call_nt_transact_set_user_quota(connection_struct *conn,
2751                                             struct smb_request *req,
2752                                             uint16 **ppsetup,
2753                                             uint32 setup_count,
2754                                             char **ppparams,
2755                                             uint32 parameter_count,
2756                                             char **ppdata,
2757                                             uint32 data_count,
2758                                             uint32 max_data_count)
2759 {
2760         char *params = *ppparams;
2761         char *pdata = *ppdata;
2762         int data_len=0,param_len=0;
2763         SMB_NTQUOTA_STRUCT qt;
2764         size_t sid_len;
2765         struct dom_sid sid;
2766         files_struct *fsp = NULL;
2767
2768         ZERO_STRUCT(qt);
2769
2770         /* access check */
2771         if (get_current_uid(conn) != 0) {
2772                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2773                          "[%s]\n", lp_servicename(SNUM(conn)),
2774                          conn->session_info->unix_name));
2775                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2776                 return;
2777         }
2778
2779         /*
2780          * Ensure minimum number of parameters sent.
2781          */
2782
2783         if (parameter_count < 2) {
2784                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2785                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2786                 return;
2787         }
2788
2789         /* maybe we can check the quota_fnum */
2790         fsp = file_fsp(req, SVAL(params,0));
2791         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2792                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2793                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2794                 return;
2795         }
2796
2797         if (data_count < 40) {
2798                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2799                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2800                 return;
2801         }
2802
2803         /* offset to next quota record.
2804          * 4 bytes IVAL(pdata,0)
2805          * unused here...
2806          */
2807
2808         /* sid len */
2809         sid_len = IVAL(pdata,4);
2810
2811         if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2812                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2813                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2814                 return;
2815         }
2816
2817         /* unknown 8 bytes in pdata
2818          * maybe its the change time in NTTIME
2819          */
2820
2821         /* the used space 8 bytes (uint64_t)*/
2822         qt.usedspace = BVAL(pdata,16);
2823
2824         /* the soft quotas 8 bytes (uint64_t)*/
2825         qt.softlim = BVAL(pdata,24);
2826
2827         /* the hard quotas 8 bytes (uint64_t)*/
2828         qt.hardlim = BVAL(pdata,32);
2829
2830         if (!sid_parse(pdata+40,sid_len,&sid)) {
2831                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2832                 return;
2833         }
2834
2835         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2836
2837         /* 44 unknown bytes left... */
2838
2839         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2840                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2841                 return;
2842         }
2843
2844         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2845                         pdata, data_len);
2846 }
2847 #endif /* HAVE_SYS_QUOTAS */
2848
2849 static void handle_nttrans(connection_struct *conn,
2850                            struct trans_state *state,
2851                            struct smb_request *req)
2852 {
2853         if (get_Protocol() >= PROTOCOL_NT1) {
2854                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2855                 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2856         }
2857
2858
2859         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2860
2861         /* Now we must call the relevant NT_TRANS function */
2862         switch(state->call) {
2863                 case NT_TRANSACT_CREATE:
2864                 {
2865                         START_PROFILE(NT_transact_create);
2866                         call_nt_transact_create(
2867                                 conn, req,
2868                                 &state->setup, state->setup_count,
2869                                 &state->param, state->total_param,
2870                                 &state->data, state->total_data,
2871                                 state->max_data_return);
2872                         END_PROFILE(NT_transact_create);
2873                         break;
2874                 }
2875
2876                 case NT_TRANSACT_IOCTL:
2877                 {
2878                         START_PROFILE(NT_transact_ioctl);
2879                         call_nt_transact_ioctl(
2880                                 conn, req,
2881                                 &state->setup, state->setup_count,
2882                                 &state->param, state->total_param,
2883                                 &state->data, state->total_data,
2884                                 state->max_data_return);
2885                         END_PROFILE(NT_transact_ioctl);
2886                         break;
2887                 }
2888
2889                 case NT_TRANSACT_SET_SECURITY_DESC:
2890                 {
2891                         START_PROFILE(NT_transact_set_security_desc);
2892                         call_nt_transact_set_security_desc(
2893                                 conn, req,
2894                                 &state->setup, state->setup_count,
2895                                 &state->param, state->total_param,
2896                                 &state->data, state->total_data,
2897                                 state->max_data_return);
2898                         END_PROFILE(NT_transact_set_security_desc);
2899                         break;
2900                 }
2901
2902                 case NT_TRANSACT_NOTIFY_CHANGE:
2903                 {
2904                         START_PROFILE(NT_transact_notify_change);
2905                         call_nt_transact_notify_change(
2906                                 conn, req,
2907                                 &state->setup, state->setup_count,
2908                                 &state->param, state->total_param,
2909                                 &state->data, state->total_data,
2910                                 state->max_data_return,
2911                                 state->max_param_return);
2912                         END_PROFILE(NT_transact_notify_change);
2913                         break;
2914                 }
2915
2916                 case NT_TRANSACT_RENAME:
2917                 {
2918                         START_PROFILE(NT_transact_rename);
2919                         call_nt_transact_rename(
2920                                 conn, req,
2921                                 &state->setup, state->setup_count,
2922                                 &state->param, state->total_param,
2923                                 &state->data, state->total_data,
2924                                 state->max_data_return);
2925                         END_PROFILE(NT_transact_rename);
2926                         break;
2927                 }
2928
2929                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2930                 {
2931                         START_PROFILE(NT_transact_query_security_desc);
2932                         call_nt_transact_query_security_desc(
2933                                 conn, req,
2934                                 &state->setup, state->setup_count,
2935                                 &state->param, state->total_param,
2936                                 &state->data, state->total_data,
2937                                 state->max_data_return);
2938                         END_PROFILE(NT_transact_query_security_desc);
2939                         break;
2940                 }
2941
2942 #ifdef HAVE_SYS_QUOTAS
2943                 case NT_TRANSACT_GET_USER_QUOTA:
2944                 {
2945                         START_PROFILE(NT_transact_get_user_quota);
2946                         call_nt_transact_get_user_quota(
2947                                 conn, req,
2948                                 &state->setup, state->setup_count,
2949                                 &state->param, state->total_param,
2950                                 &state->data, state->total_data,
2951                                 state->max_data_return);
2952                         END_PROFILE(NT_transact_get_user_quota);
2953                         break;
2954                 }
2955
2956                 case NT_TRANSACT_SET_USER_QUOTA:
2957                 {
2958                         START_PROFILE(NT_transact_set_user_quota);
2959                         call_nt_transact_set_user_quota(
2960                                 conn, req,
2961                                 &state->setup, state->setup_count,
2962                                 &state->param, state->total_param,
2963                                 &state->data, state->total_data,
2964                                 state->max_data_return);
2965                         END_PROFILE(NT_transact_set_user_quota);
2966                         break;
2967                 }
2968 #endif /* HAVE_SYS_QUOTAS */
2969
2970                 default:
2971                         /* Error in request */
2972                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2973                                  "nttrans call\n", state->call));
2974                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2975                         return;
2976         }
2977         return;
2978 }
2979
2980 /****************************************************************************
2981  Reply to a SMBNTtrans.
2982 ****************************************************************************/
2983
2984 void reply_nttrans(struct smb_request *req)
2985 {
2986         connection_struct *conn = req->conn;
2987         uint32_t pscnt;
2988         uint32_t psoff;
2989         uint32_t dscnt;
2990         uint32_t dsoff;
2991         uint16 function_code;
2992         NTSTATUS result;
2993         struct trans_state *state;
2994
2995         START_PROFILE(SMBnttrans);
2996
2997         if (req->wct < 19) {
2998                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2999                 END_PROFILE(SMBnttrans);
3000                 return;
3001         }
3002
3003         pscnt = IVAL(req->vwv+9, 1);
3004         psoff = IVAL(req->vwv+11, 1);
3005         dscnt = IVAL(req->vwv+13, 1);
3006         dsoff = IVAL(req->vwv+15, 1);
3007         function_code = SVAL(req->vwv+18, 0);
3008
3009         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3010                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3011                 END_PROFILE(SMBnttrans);
3012                 return;
3013         }
3014
3015         result = allow_new_trans(conn->pending_trans, req->mid);
3016         if (!NT_STATUS_IS_OK(result)) {
3017                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3018                 reply_nterror(req, result);
3019                 END_PROFILE(SMBnttrans);
3020                 return;
3021         }
3022
3023         if ((state = talloc(conn, struct trans_state)) == NULL) {
3024                 reply_nterror(req, NT_STATUS_NO_MEMORY);
3025                 END_PROFILE(SMBnttrans);
3026                 return;
3027         }
3028
3029         state->cmd = SMBnttrans;
3030
3031         state->mid = req->mid;
3032         state->vuid = req->vuid;
3033         state->total_data = IVAL(req->vwv+3, 1);
3034         state->data = NULL;
3035         state->total_param = IVAL(req->vwv+1, 1);
3036         state->param = NULL;
3037         state->max_data_return = IVAL(req->vwv+7, 1);
3038         state->max_param_return = IVAL(req->vwv+5, 1);
3039
3040         /* setup count is in *words* */
3041         state->setup_count = 2*CVAL(req->vwv+17, 1);
3042         state->setup = NULL;
3043         state->call = function_code;
3044
3045         DEBUG(10, ("num_setup=%u, "
3046                    "param_total=%u, this_param=%u, max_param=%u, "
3047                    "data_total=%u, this_data=%u, max_data=%u, "
3048                    "param_offset=%u, data_offset=%u\n",
3049                    (unsigned)state->setup_count,
3050                    (unsigned)state->total_param, (unsigned)pscnt,
3051                    (unsigned)state->max_param_return,
3052                    (unsigned)state->total_data, (unsigned)dscnt,
3053                    (unsigned)state->max_data_return,
3054                    (unsigned)psoff, (unsigned)dsoff));
3055
3056         /*
3057          * All nttrans messages we handle have smb_wct == 19 +
3058          * state->setup_count.  Ensure this is so as a sanity check.
3059          */
3060
3061         if(req->wct != 19 + (state->setup_count/2)) {
3062                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3063                          req->wct, 19 + (state->setup_count/2)));
3064                 goto bad_param;
3065         }
3066
3067         /* Don't allow more than 128mb for each value. */
3068         if ((state->total_data > (1024*1024*128)) ||
3069             (state->total_param > (1024*1024*128))) {
3070                 reply_nterror(req, NT_STATUS_NO_MEMORY);
3071                 END_PROFILE(SMBnttrans);
3072                 return;
3073         }
3074
3075         if ((dscnt > state->total_data) || (pscnt > state->total_param))
3076                 goto bad_param;
3077
3078         if (state->total_data)  {
3079
3080                 if (trans_oob(state->total_data, 0, dscnt)
3081                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3082                         goto bad_param;
3083                 }
3084
3085                 /* Can't use talloc here, the core routines do realloc on the
3086                  * params and data. */
3087                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3088                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
3089                                  "bytes !\n", (unsigned int)state->total_data));
3090                         TALLOC_FREE(state);
3091                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3092                         END_PROFILE(SMBnttrans);
3093                         return;
3094                 }
3095
3096                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3097         }
3098
3099         if (state->total_param) {
3100
3101                 if (trans_oob(state->total_param, 0, pscnt)
3102                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3103                         goto bad_param;
3104                 }
3105
3106                 /* Can't use talloc here, the core routines do realloc on the
3107                  * params and data. */
3108                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3109                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
3110                                  "bytes !\n", (unsigned int)state->total_param));
3111                         SAFE_FREE(state->data);
3112                         TALLOC_FREE(state);
3113                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3114                         END_PROFILE(SMBnttrans);
3115                         return;
3116                 }
3117
3118                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3119         }
3120
3121         state->received_data  = dscnt;
3122         state->received_param = pscnt;
3123
3124         if(state->setup_count > 0) {
3125                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3126                           state->setup_count));
3127
3128                 /*
3129                  * No overflow possible here, state->setup_count is an
3130                  * unsigned int, being filled by a single byte from
3131                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
3132                  * below is not necessary, it's here to clarify things. The
3133                  * validity of req->vwv and req->wct has been checked in
3134                  * init_smb_request already.
3135                  */
3136                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3137                         goto bad_param;
3138                 }
3139
3140                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3141                 if (state->setup == NULL) {
3142                         DEBUG(0,("reply_nttrans : Out of memory\n"));
3143                         SAFE_FREE(state->data);
3144                         SAFE_FREE(state->param);
3145                         TALLOC_FREE(state);
3146                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3147                         END_PROFILE(SMBnttrans);
3148                         return;
3149                 }
3150
3151                 memcpy(state->setup, req->vwv+19, state->setup_count);
3152                 dump_data(10, (uint8 *)state->setup, state->setup_count);
3153         }
3154
3155         if ((state->received_data == state->total_data) &&
3156             (state->received_param == state->total_param)) {
3157                 handle_nttrans(conn, state, req);
3158                 SAFE_FREE(state->param);
3159                 SAFE_FREE(state->data);
3160                 TALLOC_FREE(state);
3161                 END_PROFILE(SMBnttrans);
3162                 return;
3163         }
3164
3165         DLIST_ADD(conn->pending_trans, state);
3166
3167         /* We need to send an interim response then receive the rest
3168            of the parameter/data bytes */
3169         reply_outbuf(req, 0, 0);
3170         show_msg((char *)req->outbuf);
3171         END_PROFILE(SMBnttrans);
3172         return;
3173
3174   bad_param:
3175
3176         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3177         SAFE_FREE(state->data);
3178         SAFE_FREE(state->param);
3179         TALLOC_FREE(state);
3180         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3181         END_PROFILE(SMBnttrans);
3182         return;
3183 }
3184
3185 /****************************************************************************
3186  Reply to a SMBnttranss
3187  ****************************************************************************/
3188
3189 void reply_nttranss(struct smb_request *req)
3190 {
3191         connection_struct *conn = req->conn;
3192         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3193         struct trans_state *state;
3194
3195         START_PROFILE(SMBnttranss);
3196
3197         show_msg((const char *)req->inbuf);
3198
3199         if (req->wct < 18) {
3200                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3201                 END_PROFILE(SMBnttranss);
3202                 return;
3203         }
3204
3205         for (state = conn->pending_trans; state != NULL;
3206              state = state->next) {
3207                 if (state->mid == req->mid) {
3208                         break;
3209                 }
3210         }
3211
3212         if ((state == NULL) || (state->cmd != SMBnttrans)) {
3213                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3214                 END_PROFILE(SMBnttranss);
3215                 return;
3216         }
3217
3218         /* Revise state->total_param and state->total_data in case they have
3219            changed downwards */
3220         if (IVAL(req->vwv+1, 1) < state->total_param) {
3221                 state->total_param = IVAL(req->vwv+1, 1);
3222         }
3223         if (IVAL(req->vwv+3, 1) < state->total_data) {
3224                 state->total_data = IVAL(req->vwv+3, 1);
3225         }
3226
3227         pcnt = IVAL(req->vwv+5, 1);
3228         poff = IVAL(req->vwv+7, 1);
3229         pdisp = IVAL(req->vwv+9, 1);
3230
3231         dcnt = IVAL(req->vwv+11, 1);
3232         doff = IVAL(req->vwv+13, 1);
3233         ddisp = IVAL(req->vwv+15, 1);
3234
3235         state->received_param += pcnt;
3236         state->received_data += dcnt;
3237
3238         if ((state->received_data > state->total_data) ||
3239             (state->received_param > state->total_param))
3240                 goto bad_param;
3241
3242         if (pcnt) {
3243                 if (trans_oob(state->total_param, pdisp, pcnt)
3244                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3245                         goto bad_param;
3246                 }
3247                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3248         }
3249
3250         if (dcnt) {
3251                 if (trans_oob(state->total_data, ddisp, dcnt)
3252                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3253                         goto bad_param;
3254                 }
3255                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3256         }
3257
3258         if ((state->received_param < state->total_param) ||
3259             (state->received_data < state->total_data)) {
3260                 END_PROFILE(SMBnttranss);
3261                 return;
3262         }
3263
3264         handle_nttrans(conn, state, req);
3265
3266         DLIST_REMOVE(conn->pending_trans, state);
3267         SAFE_FREE(state->data);
3268         SAFE_FREE(state->param);
3269         TALLOC_FREE(state);
3270         END_PROFILE(SMBnttranss);
3271         return;
3272
3273   bad_param:
3274
3275         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3276         DLIST_REMOVE(conn->pending_trans, state);
3277         SAFE_FREE(state->data);
3278         SAFE_FREE(state->param);
3279         TALLOC_FREE(state);
3280         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3281         END_PROFILE(SMBnttranss);
3282         return;
3283 }