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                 TALLOC_CTX *shadow_mem_ctx = NULL;
2219                 bool labels = False;
2220                 uint32 labels_data_count = 0;
2221                 uint32 i;
2222                 char *cur_pdata;
2223
2224                 if (!check_fsp_open(conn, req, fsp)) {
2225                         return;
2226                 }
2227
2228                 if (max_data_count < 16) {
2229                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2230                                 max_data_count));
2231                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2232                         return;
2233                 }
2234
2235                 if (max_data_count > 16) {
2236                         labels = True;
2237                 }
2238
2239                 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2240                 if (shadow_mem_ctx == NULL) {
2241                         DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2242                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2243                         return;
2244                 }
2245
2246                 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,
2247                                             struct shadow_copy_data);
2248                 if (shadow_data == NULL) {
2249                         DEBUG(0,("TALLOC_ZERO() failed!\n"));
2250                         talloc_destroy(shadow_mem_ctx);
2251                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2252                         return;
2253                 }
2254
2255                 shadow_data->mem_ctx = shadow_mem_ctx;
2256
2257                 /*
2258                  * Call the VFS routine to actually do the work.
2259                  */
2260                 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2261                         talloc_destroy(shadow_data->mem_ctx);
2262                         if (errno == ENOSYS) {
2263                                 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2264                                         conn->connectpath));
2265                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2266                                 return;
2267                         } else {
2268                                 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2269                                         conn->connectpath));
2270                                 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2271                                 return;
2272                         }
2273                 }
2274
2275                 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2276
2277                 if (!labels) {
2278                         data_count = 16;
2279                 } else {
2280                         data_count = 12+labels_data_count+4;
2281                 }
2282
2283                 if (max_data_count<data_count) {
2284                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2285                                 max_data_count,data_count));
2286                         talloc_destroy(shadow_data->mem_ctx);
2287                         reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2288                         return;
2289                 }
2290
2291                 pdata = nttrans_realloc(ppdata, data_count);
2292                 if (pdata == NULL) {
2293                         talloc_destroy(shadow_data->mem_ctx);
2294                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2295                         return;
2296                 }
2297
2298                 cur_pdata = pdata;
2299
2300                 /* num_volumes 4 bytes */
2301                 SIVAL(pdata,0,shadow_data->num_volumes);
2302
2303                 if (labels) {
2304                         /* num_labels 4 bytes */
2305                         SIVAL(pdata,4,shadow_data->num_volumes);
2306                 }
2307
2308                 /* needed_data_count 4 bytes */
2309                 SIVAL(pdata, 8, labels_data_count+4);
2310
2311                 cur_pdata+=12;
2312
2313                 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2314                           shadow_data->num_volumes, fsp_str_dbg(fsp)));
2315                 if (labels && shadow_data->labels) {
2316                         for (i=0;i<shadow_data->num_volumes;i++) {
2317                                 srvstr_push(pdata, req->flags2,
2318                                             cur_pdata, shadow_data->labels[i],
2319                                             2*sizeof(SHADOW_COPY_LABEL),
2320                                             STR_UNICODE|STR_TERMINATE);
2321                                 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2322                                 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2323                         }
2324                 }
2325
2326                 talloc_destroy(shadow_data->mem_ctx);
2327
2328                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2329                                 pdata, data_count);
2330
2331                 return;
2332         }
2333
2334         case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2335         {
2336                 /* pretend this succeeded -
2337                  *
2338                  * we have to send back a list with all files owned by this SID
2339                  *
2340                  * but I have to check that --metze
2341                  */
2342                 struct dom_sid sid;
2343                 uid_t uid;
2344                 size_t sid_len;
2345
2346                 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2347
2348                 if (!check_fsp_open(conn, req, fsp)) {
2349                         return;
2350                 }
2351
2352                 if (data_count < 8) {
2353                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2354                         return;
2355                 }
2356
2357                 sid_len = MIN(data_count-4,SID_MAX_SIZE);
2358
2359                 /* unknown 4 bytes: this is not the length of the sid :-(  */
2360                 /*unknown = IVAL(pdata,0);*/
2361
2362                 if (!sid_parse(pdata+4,sid_len,&sid)) {
2363                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2364                         return;
2365                 }
2366                 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2367
2368                 if (!sid_to_uid(&sid, &uid)) {
2369                         DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2370                                  sid_string_dbg(&sid),
2371                                  (unsigned long)sid_len));
2372                         uid = (-1);
2373                 }
2374
2375                 /* we can take a look at the find source :-)
2376                  *
2377                  * find ./ -uid $uid  -name '*'   is what we need here
2378                  *
2379                  *
2380                  * and send 4bytes len and then NULL terminated unicode strings
2381                  * for each file
2382                  *
2383                  * but I don't know how to deal with the paged results
2384                  * (maybe we can hang the result anywhere in the fsp struct)
2385                  *
2386                  * we don't send all files at once
2387                  * and at the next we should *not* start from the beginning,
2388                  * so we have to cache the result
2389                  *
2390                  * --metze
2391                  */
2392
2393                 /* this works for now... */
2394                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2395                 return;
2396         }
2397         case FSCTL_QUERY_ALLOCATED_RANGES:
2398         {
2399                 /* FIXME: This is just a dummy reply, telling that all of the
2400                  * file is allocated. MKS cp needs that.
2401                  * Adding the real allocated ranges via FIEMAP on Linux
2402                  * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
2403                  * this FSCTL correct for sparse files.
2404                  */
2405                 NTSTATUS status;
2406                 uint64_t offset, length;
2407
2408                 if (!check_fsp_open(conn, req, fsp)) {
2409                         return;
2410                 }
2411
2412                 if (data_count != 16) {
2413                         DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
2414                                 data_count));
2415                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2416                         return;
2417                 }
2418
2419                 if (max_data_count < 16) {
2420                         DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_data_count(%u) < 16 is invalid!\n",
2421                                 max_data_count));
2422                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2423                         return;
2424                 }
2425
2426                 offset = BVAL(pdata,0);
2427                 length = BVAL(pdata,8);
2428
2429                 if (offset + length < offset) {
2430                         /* No 64-bit integer wrap. */
2431                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2432                         return;
2433                 }
2434
2435                 status = vfs_stat_fsp(fsp);
2436                 if (!NT_STATUS_IS_OK(status)) {
2437                         reply_nterror(req, status);
2438                         return;
2439                 }
2440
2441                 if (offset > fsp->fsp_name->st.st_ex_size ||
2442                                 fsp->fsp_name->st.st_ex_size == 0 ||
2443                                 length == 0) {
2444                         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2445                 } else {
2446                         uint64_t end = offset + length;
2447                         end = MIN(end, fsp->fsp_name->st.st_ex_size);
2448                         SBVAL(pdata,0,0);
2449                         SBVAL(pdata,8,end);
2450                         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2451                                 pdata, 16);
2452                 }
2453                 return;
2454         }
2455         case FSCTL_IS_VOLUME_DIRTY:
2456                 DEBUG(10,("FSCTL_IS_VOLUME_DIRTY: called on FID[0x%04X] "
2457                           "(but not implemented)\n", (int)fidnum));
2458                 /*
2459                  * http://msdn.microsoft.com/en-us/library/cc232128%28PROT.10%29.aspx
2460                  * says we have to respond with NT_STATUS_INVALID_PARAMETER
2461                  */
2462                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2463                 return;
2464         default:
2465                 /* Only print this once... */
2466                 if (!logged_ioctl_message) {
2467                         logged_ioctl_message = true;
2468                         DEBUG(2,("call_nt_transact_ioctl(0x%x): "
2469                                  "Currently not implemented.\n",
2470                                  function));
2471                 }
2472         }
2473
2474         reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2475 }
2476
2477
2478 #ifdef HAVE_SYS_QUOTAS
2479 /****************************************************************************
2480  Reply to get user quota
2481 ****************************************************************************/
2482
2483 static void call_nt_transact_get_user_quota(connection_struct *conn,
2484                                             struct smb_request *req,
2485                                             uint16 **ppsetup,
2486                                             uint32 setup_count,
2487                                             char **ppparams,
2488                                             uint32 parameter_count,
2489                                             char **ppdata,
2490                                             uint32 data_count,
2491                                             uint32 max_data_count)
2492 {
2493         NTSTATUS nt_status = NT_STATUS_OK;
2494         char *params = *ppparams;
2495         char *pdata = *ppdata;
2496         char *entry;
2497         int data_len=0,param_len=0;
2498         int qt_len=0;
2499         int entry_len = 0;
2500         files_struct *fsp = NULL;
2501         uint16 level = 0;
2502         size_t sid_len;
2503         struct dom_sid sid;
2504         bool start_enum = True;
2505         SMB_NTQUOTA_STRUCT qt;
2506         SMB_NTQUOTA_LIST *tmp_list;
2507         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2508
2509         ZERO_STRUCT(qt);
2510
2511         /* access check */
2512         if (get_current_uid(conn) != 0) {
2513                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2514                          "[%s]\n", lp_servicename(SNUM(conn)),
2515                          conn->session_info->unix_name));
2516                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2517                 return;
2518         }
2519
2520         /*
2521          * Ensure minimum number of parameters sent.
2522          */
2523
2524         if (parameter_count < 4) {
2525                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2526                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2527                 return;
2528         }
2529
2530         /* maybe we can check the quota_fnum */
2531         fsp = file_fsp(req, SVAL(params,0));
2532         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2533                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2534                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2535                 return;
2536         }
2537
2538         /* the NULL pointer checking for fsp->fake_file_handle->pd
2539          * is done by CHECK_NTQUOTA_HANDLE_OK()
2540          */
2541         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2542
2543         level = SVAL(params,2);
2544
2545         /* unknown 12 bytes leading in params */
2546
2547         switch (level) {
2548                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2549                         /* seems that we should continue with the enum here --metze */
2550
2551                         if (qt_handle->quota_list!=NULL &&
2552                             qt_handle->tmp_list==NULL) {
2553
2554                                 /* free the list */
2555                                 free_ntquota_list(&(qt_handle->quota_list));
2556
2557                                 /* Realloc the size of parameters and data we will return */
2558                                 param_len = 4;
2559                                 params = nttrans_realloc(ppparams, param_len);
2560                                 if(params == NULL) {
2561                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2562                                         return;
2563                                 }
2564
2565                                 data_len = 0;
2566                                 SIVAL(params,0,data_len);
2567
2568                                 break;
2569                         }
2570
2571                         start_enum = False;
2572
2573                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2574
2575                         if (qt_handle->quota_list==NULL &&
2576                                 qt_handle->tmp_list==NULL) {
2577                                 start_enum = True;
2578                         }
2579
2580                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2581                                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2582                                 return;
2583                         }
2584
2585                         /* Realloc the size of parameters and data we will return */
2586                         param_len = 4;
2587                         params = nttrans_realloc(ppparams, param_len);
2588                         if(params == NULL) {
2589                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2590                                 return;
2591                         }
2592
2593                         /* we should not trust the value in max_data_count*/
2594                         max_data_count = MIN(max_data_count,2048);
2595
2596                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2597                         if(pdata == NULL) {
2598                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2599                                 return;
2600                         }
2601
2602                         entry = pdata;
2603
2604                         /* set params Size of returned Quota Data 4 bytes*/
2605                         /* but set it later when we know it */
2606
2607                         /* for each entry push the data */
2608
2609                         if (start_enum) {
2610                                 qt_handle->tmp_list = qt_handle->quota_list;
2611                         }
2612
2613                         tmp_list = qt_handle->tmp_list;
2614
2615                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2616                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2617
2618                                 sid_len = ndr_size_dom_sid(
2619                                         &tmp_list->quotas->sid, 0);
2620                                 entry_len = 40 + sid_len;
2621
2622                                 /* nextoffset entry 4 bytes */
2623                                 SIVAL(entry,0,entry_len);
2624
2625                                 /* then the len of the SID 4 bytes */
2626                                 SIVAL(entry,4,sid_len);
2627
2628                                 /* unknown data 8 bytes uint64_t */
2629                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2630
2631                                 /* the used disk space 8 bytes uint64_t */
2632                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2633
2634                                 /* the soft quotas 8 bytes uint64_t */
2635                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2636
2637                                 /* the hard quotas 8 bytes uint64_t */
2638                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2639
2640                                 /* and now the SID */
2641                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2642                         }
2643
2644                         qt_handle->tmp_list = tmp_list;
2645
2646                         /* overwrite the offset of the last entry */
2647                         SIVAL(entry-entry_len,0,0);
2648
2649                         data_len = 4+qt_len;
2650                         /* overwrite the params quota_data_len */
2651                         SIVAL(params,0,data_len);
2652
2653                         break;
2654
2655                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2656
2657                         /* unknown 4 bytes IVAL(pdata,0) */
2658
2659                         if (data_count < 8) {
2660                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2661                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2662                                 return;
2663                         }
2664
2665                         sid_len = IVAL(pdata,4);
2666                         /* Ensure this is less than 1mb. */
2667                         if (sid_len > (1024*1024)) {
2668                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2669                                 return;
2670                         }
2671
2672                         if (data_count < 8+sid_len) {
2673                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2674                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2675                                 return;
2676                         }
2677
2678                         data_len = 4+40+sid_len;
2679
2680                         if (max_data_count < data_len) {
2681                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2682                                         max_data_count, data_len));
2683                                 param_len = 4;
2684                                 SIVAL(params,0,data_len);
2685                                 data_len = 0;
2686                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2687                                 break;
2688                         }
2689
2690                         if (!sid_parse(pdata+8,sid_len,&sid)) {
2691                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2692                                 return;
2693                         }
2694
2695                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2696                                 ZERO_STRUCT(qt);
2697                                 /*
2698                                  * we have to return zero's in all fields
2699                                  * instead of returning an error here
2700                                  * --metze
2701                                  */
2702                         }
2703
2704                         /* Realloc the size of parameters and data we will return */
2705                         param_len = 4;
2706                         params = nttrans_realloc(ppparams, param_len);
2707                         if(params == NULL) {
2708                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2709                                 return;
2710                         }
2711
2712                         pdata = nttrans_realloc(ppdata, data_len);
2713                         if(pdata == NULL) {
2714                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2715                                 return;
2716                         }
2717
2718                         entry = pdata;
2719
2720                         /* set params Size of returned Quota Data 4 bytes*/
2721                         SIVAL(params,0,data_len);
2722
2723                         /* nextoffset entry 4 bytes */
2724                         SIVAL(entry,0,0);
2725
2726                         /* then the len of the SID 4 bytes */
2727                         SIVAL(entry,4,sid_len);
2728
2729                         /* unknown data 8 bytes uint64_t */
2730                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2731
2732                         /* the used disk space 8 bytes uint64_t */
2733                         SBIG_UINT(entry,16,qt.usedspace);
2734
2735                         /* the soft quotas 8 bytes uint64_t */
2736                         SBIG_UINT(entry,24,qt.softlim);
2737
2738                         /* the hard quotas 8 bytes uint64_t */
2739                         SBIG_UINT(entry,32,qt.hardlim);
2740
2741                         /* and now the SID */
2742                         sid_linearize(entry+40, sid_len, &sid);
2743
2744                         break;
2745
2746                 default:
2747                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2748                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2749                         return;
2750                         break;
2751         }
2752
2753         send_nt_replies(conn, req, nt_status, params, param_len,
2754                         pdata, data_len);
2755 }
2756
2757 /****************************************************************************
2758  Reply to set user quota
2759 ****************************************************************************/
2760
2761 static void call_nt_transact_set_user_quota(connection_struct *conn,
2762                                             struct smb_request *req,
2763                                             uint16 **ppsetup,
2764                                             uint32 setup_count,
2765                                             char **ppparams,
2766                                             uint32 parameter_count,
2767                                             char **ppdata,
2768                                             uint32 data_count,
2769                                             uint32 max_data_count)
2770 {
2771         char *params = *ppparams;
2772         char *pdata = *ppdata;
2773         int data_len=0,param_len=0;
2774         SMB_NTQUOTA_STRUCT qt;
2775         size_t sid_len;
2776         struct dom_sid sid;
2777         files_struct *fsp = NULL;
2778
2779         ZERO_STRUCT(qt);
2780
2781         /* access check */
2782         if (get_current_uid(conn) != 0) {
2783                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2784                          "[%s]\n", lp_servicename(SNUM(conn)),
2785                          conn->session_info->unix_name));
2786                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2787                 return;
2788         }
2789
2790         /*
2791          * Ensure minimum number of parameters sent.
2792          */
2793
2794         if (parameter_count < 2) {
2795                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2796                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2797                 return;
2798         }
2799
2800         /* maybe we can check the quota_fnum */
2801         fsp = file_fsp(req, SVAL(params,0));
2802         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2803                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2804                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2805                 return;
2806         }
2807
2808         if (data_count < 40) {
2809                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2810                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2811                 return;
2812         }
2813
2814         /* offset to next quota record.
2815          * 4 bytes IVAL(pdata,0)
2816          * unused here...
2817          */
2818
2819         /* sid len */
2820         sid_len = IVAL(pdata,4);
2821
2822         if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2823                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2824                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2825                 return;
2826         }
2827
2828         /* unknown 8 bytes in pdata
2829          * maybe its the change time in NTTIME
2830          */
2831
2832         /* the used space 8 bytes (uint64_t)*/
2833         qt.usedspace = BVAL(pdata,16);
2834
2835         /* the soft quotas 8 bytes (uint64_t)*/
2836         qt.softlim = BVAL(pdata,24);
2837
2838         /* the hard quotas 8 bytes (uint64_t)*/
2839         qt.hardlim = BVAL(pdata,32);
2840
2841         if (!sid_parse(pdata+40,sid_len,&sid)) {
2842                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2843                 return;
2844         }
2845
2846         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2847
2848         /* 44 unknown bytes left... */
2849
2850         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2851                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2852                 return;
2853         }
2854
2855         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2856                         pdata, data_len);
2857 }
2858 #endif /* HAVE_SYS_QUOTAS */
2859
2860 static void handle_nttrans(connection_struct *conn,
2861                            struct trans_state *state,
2862                            struct smb_request *req)
2863 {
2864         if (get_Protocol() >= PROTOCOL_NT1) {
2865                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2866                 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2867         }
2868
2869
2870         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2871
2872         /* Now we must call the relevant NT_TRANS function */
2873         switch(state->call) {
2874                 case NT_TRANSACT_CREATE:
2875                 {
2876                         START_PROFILE(NT_transact_create);
2877                         call_nt_transact_create(
2878                                 conn, req,
2879                                 &state->setup, state->setup_count,
2880                                 &state->param, state->total_param,
2881                                 &state->data, state->total_data,
2882                                 state->max_data_return);
2883                         END_PROFILE(NT_transact_create);
2884                         break;
2885                 }
2886
2887                 case NT_TRANSACT_IOCTL:
2888                 {
2889                         START_PROFILE(NT_transact_ioctl);
2890                         call_nt_transact_ioctl(
2891                                 conn, req,
2892                                 &state->setup, state->setup_count,
2893                                 &state->param, state->total_param,
2894                                 &state->data, state->total_data,
2895                                 state->max_data_return);
2896                         END_PROFILE(NT_transact_ioctl);
2897                         break;
2898                 }
2899
2900                 case NT_TRANSACT_SET_SECURITY_DESC:
2901                 {
2902                         START_PROFILE(NT_transact_set_security_desc);
2903                         call_nt_transact_set_security_desc(
2904                                 conn, req,
2905                                 &state->setup, state->setup_count,
2906                                 &state->param, state->total_param,
2907                                 &state->data, state->total_data,
2908                                 state->max_data_return);
2909                         END_PROFILE(NT_transact_set_security_desc);
2910                         break;
2911                 }
2912
2913                 case NT_TRANSACT_NOTIFY_CHANGE:
2914                 {
2915                         START_PROFILE(NT_transact_notify_change);
2916                         call_nt_transact_notify_change(
2917                                 conn, req,
2918                                 &state->setup, state->setup_count,
2919                                 &state->param, state->total_param,
2920                                 &state->data, state->total_data,
2921                                 state->max_data_return,
2922                                 state->max_param_return);
2923                         END_PROFILE(NT_transact_notify_change);
2924                         break;
2925                 }
2926
2927                 case NT_TRANSACT_RENAME:
2928                 {
2929                         START_PROFILE(NT_transact_rename);
2930                         call_nt_transact_rename(
2931                                 conn, req,
2932                                 &state->setup, state->setup_count,
2933                                 &state->param, state->total_param,
2934                                 &state->data, state->total_data,
2935                                 state->max_data_return);
2936                         END_PROFILE(NT_transact_rename);
2937                         break;
2938                 }
2939
2940                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2941                 {
2942                         START_PROFILE(NT_transact_query_security_desc);
2943                         call_nt_transact_query_security_desc(
2944                                 conn, req,
2945                                 &state->setup, state->setup_count,
2946                                 &state->param, state->total_param,
2947                                 &state->data, state->total_data,
2948                                 state->max_data_return);
2949                         END_PROFILE(NT_transact_query_security_desc);
2950                         break;
2951                 }
2952
2953 #ifdef HAVE_SYS_QUOTAS
2954                 case NT_TRANSACT_GET_USER_QUOTA:
2955                 {
2956                         START_PROFILE(NT_transact_get_user_quota);
2957                         call_nt_transact_get_user_quota(
2958                                 conn, req,
2959                                 &state->setup, state->setup_count,
2960                                 &state->param, state->total_param,
2961                                 &state->data, state->total_data,
2962                                 state->max_data_return);
2963                         END_PROFILE(NT_transact_get_user_quota);
2964                         break;
2965                 }
2966
2967                 case NT_TRANSACT_SET_USER_QUOTA:
2968                 {
2969                         START_PROFILE(NT_transact_set_user_quota);
2970                         call_nt_transact_set_user_quota(
2971                                 conn, req,
2972                                 &state->setup, state->setup_count,
2973                                 &state->param, state->total_param,
2974                                 &state->data, state->total_data,
2975                                 state->max_data_return);
2976                         END_PROFILE(NT_transact_set_user_quota);
2977                         break;
2978                 }
2979 #endif /* HAVE_SYS_QUOTAS */
2980
2981                 default:
2982                         /* Error in request */
2983                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2984                                  "nttrans call\n", state->call));
2985                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2986                         return;
2987         }
2988         return;
2989 }
2990
2991 /****************************************************************************
2992  Reply to a SMBNTtrans.
2993 ****************************************************************************/
2994
2995 void reply_nttrans(struct smb_request *req)
2996 {
2997         connection_struct *conn = req->conn;
2998         uint32_t pscnt;
2999         uint32_t psoff;
3000         uint32_t dscnt;
3001         uint32_t dsoff;
3002         uint16 function_code;
3003         NTSTATUS result;
3004         struct trans_state *state;
3005
3006         START_PROFILE(SMBnttrans);
3007
3008         if (req->wct < 19) {
3009                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3010                 END_PROFILE(SMBnttrans);
3011                 return;
3012         }
3013
3014         pscnt = IVAL(req->vwv+9, 1);
3015         psoff = IVAL(req->vwv+11, 1);
3016         dscnt = IVAL(req->vwv+13, 1);
3017         dsoff = IVAL(req->vwv+15, 1);
3018         function_code = SVAL(req->vwv+18, 0);
3019
3020         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3021                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3022                 END_PROFILE(SMBnttrans);
3023                 return;
3024         }
3025
3026         result = allow_new_trans(conn->pending_trans, req->mid);
3027         if (!NT_STATUS_IS_OK(result)) {
3028                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3029                 reply_nterror(req, result);
3030                 END_PROFILE(SMBnttrans);
3031                 return;
3032         }
3033
3034         if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
3035                 reply_nterror(req, NT_STATUS_NO_MEMORY);
3036                 END_PROFILE(SMBnttrans);
3037                 return;
3038         }
3039
3040         state->cmd = SMBnttrans;
3041
3042         state->mid = req->mid;
3043         state->vuid = req->vuid;
3044         state->total_data = IVAL(req->vwv+3, 1);
3045         state->data = NULL;
3046         state->total_param = IVAL(req->vwv+1, 1);
3047         state->param = NULL;
3048         state->max_data_return = IVAL(req->vwv+7, 1);
3049         state->max_param_return = IVAL(req->vwv+5, 1);
3050
3051         /* setup count is in *words* */
3052         state->setup_count = 2*CVAL(req->vwv+17, 1);
3053         state->setup = NULL;
3054         state->call = function_code;
3055
3056         DEBUG(10, ("num_setup=%u, "
3057                    "param_total=%u, this_param=%u, max_param=%u, "
3058                    "data_total=%u, this_data=%u, max_data=%u, "
3059                    "param_offset=%u, data_offset=%u\n",
3060                    (unsigned)state->setup_count,
3061                    (unsigned)state->total_param, (unsigned)pscnt,
3062                    (unsigned)state->max_param_return,
3063                    (unsigned)state->total_data, (unsigned)dscnt,
3064                    (unsigned)state->max_data_return,
3065                    (unsigned)psoff, (unsigned)dsoff));
3066
3067         /*
3068          * All nttrans messages we handle have smb_wct == 19 +
3069          * state->setup_count.  Ensure this is so as a sanity check.
3070          */
3071
3072         if(req->wct != 19 + (state->setup_count/2)) {
3073                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3074                          req->wct, 19 + (state->setup_count/2)));
3075                 goto bad_param;
3076         }
3077
3078         /* Don't allow more than 128mb for each value. */
3079         if ((state->total_data > (1024*1024*128)) ||
3080             (state->total_param > (1024*1024*128))) {
3081                 reply_nterror(req, NT_STATUS_NO_MEMORY);
3082                 END_PROFILE(SMBnttrans);
3083                 return;
3084         }
3085
3086         if ((dscnt > state->total_data) || (pscnt > state->total_param))
3087                 goto bad_param;
3088
3089         if (state->total_data)  {
3090
3091                 if (trans_oob(state->total_data, 0, dscnt)
3092                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3093                         goto bad_param;
3094                 }
3095
3096                 /* Can't use talloc here, the core routines do realloc on the
3097                  * params and data. */
3098                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3099                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
3100                                  "bytes !\n", (unsigned int)state->total_data));
3101                         TALLOC_FREE(state);
3102                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3103                         END_PROFILE(SMBnttrans);
3104                         return;
3105                 }
3106
3107                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3108         }
3109
3110         if (state->total_param) {
3111
3112                 if (trans_oob(state->total_param, 0, pscnt)
3113                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3114                         goto bad_param;
3115                 }
3116
3117                 /* Can't use talloc here, the core routines do realloc on the
3118                  * params and data. */
3119                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3120                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
3121                                  "bytes !\n", (unsigned int)state->total_param));
3122                         SAFE_FREE(state->data);
3123                         TALLOC_FREE(state);
3124                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3125                         END_PROFILE(SMBnttrans);
3126                         return;
3127                 }
3128
3129                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3130         }
3131
3132         state->received_data  = dscnt;
3133         state->received_param = pscnt;
3134
3135         if(state->setup_count > 0) {
3136                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3137                           state->setup_count));
3138
3139                 /*
3140                  * No overflow possible here, state->setup_count is an
3141                  * unsigned int, being filled by a single byte from
3142                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
3143                  * below is not necessary, it's here to clarify things. The
3144                  * validity of req->vwv and req->wct has been checked in
3145                  * init_smb_request already.
3146                  */
3147                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3148                         goto bad_param;
3149                 }
3150
3151                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3152                 if (state->setup == NULL) {
3153                         DEBUG(0,("reply_nttrans : Out of memory\n"));
3154                         SAFE_FREE(state->data);
3155                         SAFE_FREE(state->param);
3156                         TALLOC_FREE(state);
3157                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3158                         END_PROFILE(SMBnttrans);
3159                         return;
3160                 }
3161
3162                 memcpy(state->setup, req->vwv+19, state->setup_count);
3163                 dump_data(10, (uint8 *)state->setup, state->setup_count);
3164         }
3165
3166         if ((state->received_data == state->total_data) &&
3167             (state->received_param == state->total_param)) {
3168                 handle_nttrans(conn, state, req);
3169                 SAFE_FREE(state->param);
3170                 SAFE_FREE(state->data);
3171                 TALLOC_FREE(state);
3172                 END_PROFILE(SMBnttrans);
3173                 return;
3174         }
3175
3176         DLIST_ADD(conn->pending_trans, state);
3177
3178         /* We need to send an interim response then receive the rest
3179            of the parameter/data bytes */
3180         reply_outbuf(req, 0, 0);
3181         show_msg((char *)req->outbuf);
3182         END_PROFILE(SMBnttrans);
3183         return;
3184
3185   bad_param:
3186
3187         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3188         SAFE_FREE(state->data);
3189         SAFE_FREE(state->param);
3190         TALLOC_FREE(state);
3191         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3192         END_PROFILE(SMBnttrans);
3193         return;
3194 }
3195
3196 /****************************************************************************
3197  Reply to a SMBnttranss
3198  ****************************************************************************/
3199
3200 void reply_nttranss(struct smb_request *req)
3201 {
3202         connection_struct *conn = req->conn;
3203         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3204         struct trans_state *state;
3205
3206         START_PROFILE(SMBnttranss);
3207
3208         show_msg((const char *)req->inbuf);
3209
3210         if (req->wct < 18) {
3211                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3212                 END_PROFILE(SMBnttranss);
3213                 return;
3214         }
3215
3216         for (state = conn->pending_trans; state != NULL;
3217              state = state->next) {
3218                 if (state->mid == req->mid) {
3219                         break;
3220                 }
3221         }
3222
3223         if ((state == NULL) || (state->cmd != SMBnttrans)) {
3224                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3225                 END_PROFILE(SMBnttranss);
3226                 return;
3227         }
3228
3229         /* Revise state->total_param and state->total_data in case they have
3230            changed downwards */
3231         if (IVAL(req->vwv+1, 1) < state->total_param) {
3232                 state->total_param = IVAL(req->vwv+1, 1);
3233         }
3234         if (IVAL(req->vwv+3, 1) < state->total_data) {
3235                 state->total_data = IVAL(req->vwv+3, 1);
3236         }
3237
3238         pcnt = IVAL(req->vwv+5, 1);
3239         poff = IVAL(req->vwv+7, 1);
3240         pdisp = IVAL(req->vwv+9, 1);
3241
3242         dcnt = IVAL(req->vwv+11, 1);
3243         doff = IVAL(req->vwv+13, 1);
3244         ddisp = IVAL(req->vwv+15, 1);
3245
3246         state->received_param += pcnt;
3247         state->received_data += dcnt;
3248
3249         if ((state->received_data > state->total_data) ||
3250             (state->received_param > state->total_param))
3251                 goto bad_param;
3252
3253         if (pcnt) {
3254                 if (trans_oob(state->total_param, pdisp, pcnt)
3255                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3256                         goto bad_param;
3257                 }
3258                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3259         }
3260
3261         if (dcnt) {
3262                 if (trans_oob(state->total_data, ddisp, dcnt)
3263                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3264                         goto bad_param;
3265                 }
3266                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3267         }
3268
3269         if ((state->received_param < state->total_param) ||
3270             (state->received_data < state->total_data)) {
3271                 END_PROFILE(SMBnttranss);
3272                 return;
3273         }
3274
3275         handle_nttrans(conn, state, req);
3276
3277         DLIST_REMOVE(conn->pending_trans, state);
3278         SAFE_FREE(state->data);
3279         SAFE_FREE(state->param);
3280         TALLOC_FREE(state);
3281         END_PROFILE(SMBnttranss);
3282         return;
3283
3284   bad_param:
3285
3286         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3287         DLIST_REMOVE(conn->pending_trans, state);
3288         SAFE_FREE(state->data);
3289         SAFE_FREE(state->param);
3290         TALLOC_FREE(state);
3291         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3292         END_PROFILE(SMBnttranss);
3293         return;
3294 }