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 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                  * Set total params and data to be sent.
 148                  */
 149
 150                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 151                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 152
 153                 /*
 154                  * Calculate how many parameters and data we can fit into
 155                  * this packet. Parameters get precedence.
 156                  */
 157
 158                 params_sent_thistime = MIN(params_to_send,useable_space);
 159                 data_sent_thistime = useable_space - params_sent_thistime;
 160                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 161
 162                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 163                       params_sent_thistime);
 164
 165                 if(params_sent_thistime == 0) {
 166                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 167                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 168                 } else {
 169                         /*
 170                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 171                          * parameter bytes, however the first 4 bytes of outbuf are
 172                          * the Netbios over TCP header. Thus use smb_base() to subtract
 173                          * them from the calculation.
 174                          */
 175
 176                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 177                               ((smb_buf(req->outbuf)+alignment_offset)
 178                                - smb_base(req->outbuf)));
 179                         /*
 180                          * Absolute displacement of param bytes sent in this packet.
 181                          */
 182
 183                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 184                               pp - params);
 185                 }
 186
 187                 /*
 188                  * Deal with the data portion.
 189                  */
 190
 191                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 192
 193                 if(data_sent_thistime == 0) {
 194                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 195                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 196                 } else {
 197                         /*
 198                          * The offset of the data bytes is the offset of the
 199                          * parameter bytes plus the number of parameters being sent this time.
 200                          */
 201
 202                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 203                               ((smb_buf(req->outbuf)+alignment_offset) -
 204                                smb_base(req->outbuf))
 205                               + params_sent_thistime + data_alignment_offset);
 206                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 207                 }
 208
 209                 /*
 210                  * Copy the param bytes into the packet.
 211                  */
 212
 213                 if(params_sent_thistime) {
 214                         if (alignment_offset != 0) {
 215                                 memset(smb_buf(req->outbuf), 0,
 216                                        alignment_offset);
 217                         }
 218                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 219                                params_sent_thistime);
 220                 }
 221
 222                 /*
 223                  * Copy in the data bytes
 224                  */
 225
 226                 if(data_sent_thistime) {
 227                         if (data_alignment_offset != 0) {
 228                                 memset((smb_buf(req->outbuf)+alignment_offset+
 229                                         params_sent_thistime), 0,
 230                                        data_alignment_offset);
 231                         }
 232                         memcpy(smb_buf(req->outbuf)+alignment_offset
 233                                +params_sent_thistime+data_alignment_offset,
 234                                pd,data_sent_thistime);
 235                 }
 236
 237                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 238                         params_sent_thistime, data_sent_thistime, useable_space));
 239                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 240                         params_to_send, data_to_send, paramsize, datasize));
 241
 242                 if (NT_STATUS_V(nt_error)) {
 243                         error_packet_set((char *)req->outbuf,
 244                                          0, 0, nt_error,
 245                                          __LINE__,__FILE__);
 246                 }
 247
 248                 /* Send the packet */
 249                 show_msg((char *)req->outbuf);
 250                 if (!srv_send_smb(sconn,
 251                                 (char *)req->outbuf,
 252                                 true, req->seqnum+1,
 253                                 IS_CONN_ENCRYPTED(conn),
 254                                 &req->pcd)) {
 255                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 256                 }
 257
 258                 TALLOC_FREE(req->outbuf);
 259
 260                 pp += params_sent_thistime;
 261                 pd += data_sent_thistime;
 262
 263                 params_to_send -= params_sent_thistime;
 264                 data_to_send -= data_sent_thistime;
 265
 266                 /*
 267                  * Sanity check
 268                  */
 269
 270                 if(params_to_send < 0 || data_to_send < 0) {
 271                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 272                                 params_to_send, data_to_send));
 273                         exit_server_cleanly("send_nt_replies: internal error");
 274                 }
 275         }
 276 }
 277
 278 /****************************************************************************
 279  Reply to an NT create and X call on a pipe
 280 ****************************************************************************/
 281
 282 static void nt_open_pipe(char *fname, connection_struct *conn,
 283                          struct smb_request *req, int *ppnum)
 284 {
 285         files_struct *fsp;
 286         NTSTATUS status;
 287
 288         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 289
 290         /* Strip \\ off the name. */
 291         fname++;
 292
 293         status = open_np_file(req, fname, &fsp);
 294         if (!NT_STATUS_IS_OK(status)) {
 295                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 296                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 297                                         ERRDOS, ERRbadpipe);
 298                         return;
 299                 }
 300                 reply_nterror(req, status);
 301                 return;
 302         }
 303
 304         *ppnum = fsp->fnum;
 305         return;
 306 }
 307
 308 /****************************************************************************
 309  Reply to an NT create and X call for pipes.
 310 ****************************************************************************/
 311
 312 static void do_ntcreate_pipe_open(connection_struct *conn,
 313                                   struct smb_request *req)
 314 {
 315         char *fname = NULL;
 316         int pnum = -1;
 317         char *p = NULL;
 318         uint32 flags = IVAL(req->vwv+3, 1);
 319         TALLOC_CTX *ctx = talloc_tos();
 320
 321         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
 322
 323         if (!fname) {
 324                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 325                                 ERRDOS, ERRbadpipe);
 326                 return;
 327         }
 328         nt_open_pipe(fname, conn, req, &pnum);
 329
 330         if (req->outbuf) {
 331                 /* error reply */
 332                 return;
 333         }
 334
 335         /*
 336          * Deal with pipe return.
 337          */
 338
 339         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 340                 /* This is very strange. We
 341                  * return 50 words, but only set
 342                  * the wcnt to 42 ? It's definately
 343                  * what happens on the wire....
 344                  */
 345                 reply_outbuf(req, 50, 0);
 346                 SCVAL(req->outbuf,smb_wct,42);
 347         } else {
 348                 reply_outbuf(req, 34, 0);
 349         }
 350
 351         p = (char *)req->outbuf + smb_vwv2;
 352         p++;
 353         SSVAL(p,0,pnum);
 354         p += 2;
 355         SIVAL(p,0,FILE_WAS_OPENED);
 356         p += 4;
 357         p += 32;
 358         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 359         p += 20;
 360         /* File type. */
 361         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 362         /* Device state. */
 363         SSVAL(p,2, 0x5FF); /* ? */
 364         p += 4;
 365
 366         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 367                 p += 25;
 368                 SIVAL(p,0,FILE_GENERIC_ALL);
 369                 /*
 370                  * For pipes W2K3 seems to return
 371                  * 0x12019B next.
 372                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 373                  */
 374                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 375         }
 376
 377         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 378
 379         chain_reply(req);
 380 }
 381
 382 struct case_semantics_state {
 383         connection_struct *conn;
 384         bool case_sensitive;
 385         bool case_preserve;
 386         bool short_case_preserve;
 387 };
 388
 389 /****************************************************************************
 390  Restore case semantics.
 391 ****************************************************************************/
 392
 393 static int restore_case_semantics(struct case_semantics_state *state)
 394 {
 395         state->conn->case_sensitive = state->case_sensitive;
 396         state->conn->case_preserve = state->case_preserve;
 397         state->conn->short_case_preserve = state->short_case_preserve;
 398         return 0;
 399 }
 400
 401 /****************************************************************************
 402  Save case semantics.
 403 ****************************************************************************/
 404
 405 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 406                                                 connection_struct *conn)
 407 {
 408         struct case_semantics_state *result;
 409
 410         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 411                 return NULL;
 412         }
 413
 414         result->conn = conn;
 415         result->case_sensitive = conn->case_sensitive;
 416         result->case_preserve = conn->case_preserve;
 417         result->short_case_preserve = conn->short_case_preserve;
 418
 419         /* Set to POSIX. */
 420         conn->case_sensitive = True;
 421         conn->case_preserve = True;
 422         conn->short_case_preserve = True;
 423
 424         talloc_set_destructor(result, restore_case_semantics);
 425
 426         return result;
 427 }
 428
 429 /****************************************************************************
 430  Reply to an NT create and X call.
 431 ****************************************************************************/
 432
 433 void reply_ntcreate_and_X(struct smb_request *req)
 434 {
 435         connection_struct *conn = req->conn;
 436         struct smb_filename *smb_fname = NULL;
 437         char *fname = NULL;
 438         uint32 flags;
 439         uint32 access_mask;
 440         uint32 file_attributes;
 441         uint32 share_access;
 442         uint32 create_disposition;
 443         uint32 create_options;
 444         uint16 root_dir_fid;
 445         uint64_t allocation_size;
 446         /* Breakout the oplock request bits so we can set the
 447            reply bits separately. */
 448         uint32 fattr=0;
 449         SMB_OFF_T file_len = 0;
 450         int info = 0;
 451         files_struct *fsp = NULL;
 452         char *p = NULL;
 453         struct timespec create_timespec;
 454         struct timespec c_timespec;
 455         struct timespec a_timespec;
 456         struct timespec m_timespec;
 457         struct timespec write_time_ts;
 458         NTSTATUS status;
 459         int oplock_request;
 460         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 461         struct case_semantics_state *case_state = NULL;
 462         TALLOC_CTX *ctx = talloc_tos();
 463
 464         START_PROFILE(SMBntcreateX);
 465
 466         if (req->wct < 24) {
 467                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 468                 goto out;
 469         }
 470
 471         flags = IVAL(req->vwv+3, 1);
 472         access_mask = IVAL(req->vwv+7, 1);
 473         file_attributes = IVAL(req->vwv+13, 1);
 474         share_access = IVAL(req->vwv+15, 1);
 475         create_disposition = IVAL(req->vwv+17, 1);
 476         create_options = IVAL(req->vwv+19, 1);
 477         root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
 478
 479         allocation_size = BVAL(req->vwv+9, 1);
 480
 481         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 482                             STR_TERMINATE, &status);
 483
 484         if (!NT_STATUS_IS_OK(status)) {
 485                 reply_nterror(req, status);
 486                 goto out;
 487         }
 488
 489         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 490                   "file_attributes = 0x%x, share_access = 0x%x, "
 491                   "create_disposition = 0x%x create_options = 0x%x "
 492                   "root_dir_fid = 0x%x, fname = %s\n",
 493                         (unsigned int)flags,
 494                         (unsigned int)access_mask,
 495                         (unsigned int)file_attributes,
 496                         (unsigned int)share_access,
 497                         (unsigned int)create_disposition,
 498                         (unsigned int)create_options,
 499                         (unsigned int)root_dir_fid,
 500                         fname));
 501
 502         /*
 503          * we need to remove ignored bits when they come directly from the client
 504          * because we reuse some of them for internal stuff
 505          */
 506         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 507
 508         /*
 509          * If it's an IPC, use the pipe handler.
 510          */
 511
 512         if (IS_IPC(conn)) {
 513                 if (lp_nt_pipe_support()) {
 514                         do_ntcreate_pipe_open(conn, req);
 515                         goto out;
 516                 }
 517                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 518                 goto out;
 519         }
 520
 521         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 522         if (oplock_request) {
 523                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 524                         ? BATCH_OPLOCK : 0;
 525         }
 526
 527         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 528                 case_state = set_posix_case_semantics(ctx, conn);
 529                 if (!case_state) {
 530                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 531                         goto out;
 532                 }
 533         }
 534
 535         status = filename_convert(ctx,
 536                                 conn,
 537                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 538                                 fname,
 539                                 (create_disposition == FILE_CREATE)
 540                                         ? UCF_CREATING_FILE : 0,
 541                                 NULL,
 542                                 &smb_fname);
 543
 544         TALLOC_FREE(case_state);
 545
 546         if (!NT_STATUS_IS_OK(status)) {
 547                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 548                         reply_botherror(req,
 549                                 NT_STATUS_PATH_NOT_COVERED,
 550                                 ERRSRV, ERRbadpath);
 551                         goto out;
 552                 }
 553                 reply_nterror(req, status);
 554                 goto out;
 555         }
 556
 557         /*
 558          * Bug #6898 - clients using Windows opens should
 559          * never be able to set this attribute into the
 560          * VFS.
 561          */
 562         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 563
 564         status = SMB_VFS_CREATE_FILE(
 565                 conn,                                   /* conn */
 566                 req,                                    /* req */
 567                 root_dir_fid,                           /* root_dir_fid */
 568                 smb_fname,                              /* fname */
 569                 access_mask,                            /* access_mask */
 570                 share_access,                           /* share_access */
 571                 create_disposition,                     /* create_disposition*/
 572                 create_options,                         /* create_options */
 573                 file_attributes,                        /* file_attributes */
 574                 oplock_request,                         /* oplock_request */
 575                 allocation_size,                        /* allocation_size */
 576                 0,                                      /* private_flags */
 577                 NULL,                                   /* sd */
 578                 NULL,                                   /* ea_list */
 579                 &fsp,                                   /* result */
 580                 &info);                                 /* pinfo */
 581
 582         if (!NT_STATUS_IS_OK(status)) {
 583                 if (open_was_deferred(req->mid)) {
 584                         /* We have re-scheduled this call, no error. */
 585                         goto out;
 586                 }
 587                 reply_openerror(req, status);
 588                 goto out;
 589         }
 590
 591         /* Ensure we're pointing at the correct stat struct. */
 592         TALLOC_FREE(smb_fname);
 593         smb_fname = fsp->fsp_name;
 594
 595         /*
 596          * If the caller set the extended oplock request bit
 597          * and we granted one (by whatever means) - set the
 598          * correct bit for extended oplock reply.
 599          */
 600
 601         if (oplock_request &&
 602             (lp_fake_oplocks(SNUM(conn))
 603              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 604
 605                 /*
 606                  * Exclusive oplock granted
 607                  */
 608
 609                 if (flags & REQUEST_BATCH_OPLOCK) {
 610                         oplock_granted = BATCH_OPLOCK_RETURN;
 611                 } else {
 612                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 613                 }
 614         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 615                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 616         } else {
 617                 oplock_granted = NO_OPLOCK_RETURN;
 618         }
 619
 620         file_len = smb_fname->st.st_ex_size;
 621
 622         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 623                 /* This is very strange. We
 624                  * return 50 words, but only set
 625                  * the wcnt to 42 ? It's definately
 626                  * what happens on the wire....
 627                  */
 628                 reply_outbuf(req, 50, 0);
 629                 SCVAL(req->outbuf,smb_wct,42);
 630         } else {
 631                 reply_outbuf(req, 34, 0);
 632         }
 633
 634         p = (char *)req->outbuf + smb_vwv2;
 635
 636         SCVAL(p, 0, oplock_granted);
 637
 638         p++;
 639         SSVAL(p,0,fsp->fnum);
 640         p += 2;
 641         if ((create_disposition == FILE_SUPERSEDE)
 642             && (info == FILE_WAS_OVERWRITTEN)) {
 643                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 644         } else {
 645                 SIVAL(p,0,info);
 646         }
 647         p += 4;
 648
 649         fattr = dos_mode(conn, smb_fname);
 650         if (fattr == 0) {
 651                 fattr = FILE_ATTRIBUTE_NORMAL;
 652         }
 653
 654         /* Deal with other possible opens having a modified
 655            write time. JRA. */
 656         ZERO_STRUCT(write_time_ts);
 657         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
 658         if (!null_timespec(write_time_ts)) {
 659                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
 660         }
 661
 662         /* Create time. */
 663         create_timespec = get_create_timespec(conn, fsp, smb_fname);
 664         a_timespec = smb_fname->st.st_ex_atime;
 665         m_timespec = smb_fname->st.st_ex_mtime;
 666         c_timespec = get_change_timespec(conn, fsp, smb_fname);
 667
 668         if (lp_dos_filetime_resolution(SNUM(conn))) {
 669                 dos_filetime_timespec(&create_timespec);
 670                 dos_filetime_timespec(&a_timespec);
 671                 dos_filetime_timespec(&m_timespec);
 672                 dos_filetime_timespec(&c_timespec);
 673         }
 674
 675         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
 676         p += 8;
 677         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
 678         p += 8;
 679         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
 680         p += 8;
 681         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
 682         p += 8;
 683         SIVAL(p,0,fattr); /* File Attributes. */
 684         p += 4;
 685         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 686         p += 8;
 687         SOFF_T(p,0,file_len);
 688         p += 8;
 689         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 690                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
 691                 size_t num_names = 0;
 692                 unsigned int num_streams = 0;
 693                 struct stream_struct *streams = NULL;
 694
 695                 /* Do we have any EA's ? */
 696                 status = get_ea_names_from_file(ctx, conn, fsp,
 697                                 smb_fname->base_name, NULL, &num_names);
 698                 if (NT_STATUS_IS_OK(status) && num_names) {
 699                         file_status &= ~NO_EAS;
 700                 }
 701                 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
 702                         &num_streams, &streams);
 703                 /* There is always one stream, ::$DATA. */
 704                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
 705                         file_status &= ~NO_SUBSTREAMS;
 706                 }
 707                 TALLOC_FREE(streams);
 708                 SSVAL(p,2,file_status);
 709         }
 710         p += 4;
 711         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 712
 713         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 714                 uint32 perms = 0;
 715                 p += 25;
 716                 if (fsp->is_directory ||
 717                     can_write_to_file(conn, smb_fname)) {
 718                         perms = FILE_GENERIC_ALL;
 719                 } else {
 720                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 721                 }
 722                 SIVAL(p,0,perms);
 723         }
 724
 725         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
 726                 fsp->fnum, smb_fname_str_dbg(smb_fname)));
 727
 728         chain_reply(req);
 729  out:
 730         END_PROFILE(SMBntcreateX);
 731         return;
 732 }
 733
 734 /****************************************************************************
 735  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 736 ****************************************************************************/
 737
 738 static void do_nt_transact_create_pipe(connection_struct *conn,
 739                                        struct smb_request *req,
 740                                        uint16 **ppsetup, uint32 setup_count,
 741                                        char **ppparams, uint32 parameter_count,
 742                                        char **ppdata, uint32 data_count)
 743 {
 744         char *fname = NULL;
 745         char *params = *ppparams;
 746         int pnum = -1;
 747         char *p = NULL;
 748         NTSTATUS status;
 749         size_t param_len;
 750         uint32 flags;
 751         TALLOC_CTX *ctx = talloc_tos();
 752
 753         /*
 754          * Ensure minimum number of parameters sent.
 755          */
 756
 757         if(parameter_count < 54) {
 758                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 759                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 760                 return;
 761         }
 762
 763         flags = IVAL(params,0);
 764
 765         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
 766                         parameter_count-53, STR_TERMINATE,
 767                         &status);
 768         if (!NT_STATUS_IS_OK(status)) {
 769                 reply_nterror(req, status);
 770                 return;
 771         }
 772
 773         nt_open_pipe(fname, conn, req, &pnum);
 774
 775         if (req->outbuf) {
 776                 /* Error return */
 777                 return;
 778         }
 779
 780         /* Realloc the size of parameters and data we will return */
 781         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 782                 /* Extended response is 32 more byyes. */
 783                 param_len = 101;
 784         } else {
 785                 param_len = 69;
 786         }
 787         params = nttrans_realloc(ppparams, param_len);
 788         if(params == NULL) {
 789                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 790                 return;
 791         }
 792
 793         p = params;
 794         SCVAL(p,0,NO_OPLOCK_RETURN);
 795
 796         p += 2;
 797         SSVAL(p,0,pnum);
 798         p += 2;
 799         SIVAL(p,0,FILE_WAS_OPENED);
 800         p += 8;
 801
 802         p += 32;
 803         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 804         p += 20;
 805         /* File type. */
 806         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 807         /* Device state. */
 808         SSVAL(p,2, 0x5FF); /* ? */
 809         p += 4;
 810
 811         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 812                 p += 25;
 813                 SIVAL(p,0,FILE_GENERIC_ALL);
 814                 /*
 815                  * For pipes W2K3 seems to return
 816                  * 0x12019B next.
 817                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 818                  */
 819                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 820         }
 821
 822         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 823
 824         /* Send the required number of replies */
 825         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 826
 827         return;
 828 }
 829
 830 /*********************************************************************
 831  Windows seems to do canonicalization of inheritance bits. Do the
 832  same.
 833 *********************************************************************/
 834
 835 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
 836 {
 837         bool set_auto_inherited = false;
 838
 839         /*
 840          * We need to filter out the
 841          * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
 842          * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
 843          * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
 844          * when an ACE is inherited. Otherwise we zero these bits out.
 845          * See:
 846          *
 847          * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
 848          *
 849          * for details.
 850          */
 851
 852         if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
 853                         == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
 854                 set_auto_inherited = true;
 855         }
 856
 857         psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
 858         if (set_auto_inherited) {
 859                 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
 860         }
 861 }
 862
 863 /****************************************************************************
 864  Internal fn to set security descriptors.
 865 ****************************************************************************/
 866
 867 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
 868                        uint32_t security_info_sent)
 869 {
 870         NTSTATUS status;
 871
 872         if (!CAN_WRITE(fsp->conn)) {
 873                 return NT_STATUS_ACCESS_DENIED;
 874         }
 875
 876         if (!lp_nt_acl_support(SNUM(fsp->conn))) {
 877                 return NT_STATUS_OK;
 878         }
 879
 880         if (psd->owner_sid == NULL) {
 881                 security_info_sent &= ~SECINFO_OWNER;
 882         }
 883         if (psd->group_sid == NULL) {
 884                 security_info_sent &= ~SECINFO_GROUP;
 885         }
 886
 887         /* Ensure we have at least one thing set. */
 888         if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
 889                 /* Just like W2K3 */
 890                 return NT_STATUS_OK;
 891         }
 892
 893         /* Ensure we have the rights to do this. */
 894         if (security_info_sent & SECINFO_OWNER) {
 895                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 896                         return NT_STATUS_ACCESS_DENIED;
 897                 }
 898         }
 899
 900         if (security_info_sent & SECINFO_GROUP) {
 901                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 902                         return NT_STATUS_ACCESS_DENIED;
 903                 }
 904         }
 905
 906         if (security_info_sent & SECINFO_DACL) {
 907                 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
 908                         return NT_STATUS_ACCESS_DENIED;
 909                 }
 910                 /* Convert all the generic bits. */
 911                 if (psd->dacl) {
 912                         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 913                 }
 914         }
 915
 916         if (security_info_sent & SECINFO_SACL) {
 917                 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
 918                         return NT_STATUS_ACCESS_DENIED;
 919                 }
 920                 /* Convert all the generic bits. */
 921                 if (psd->sacl) {
 922                         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 923                 }
 924         }
 925
 926         canonicalize_inheritance_bits(psd);
 927
 928         if (DEBUGLEVEL >= 10) {
 929                 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
 930                 NDR_PRINT_DEBUG(security_descriptor, psd);
 931         }
 932
 933         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 934
 935         TALLOC_FREE(psd);
 936
 937         return status;
 938 }
 939
 940 /****************************************************************************
 941  Internal fn to set security descriptors from a data blob.
 942 ****************************************************************************/
 943
 944 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
 945                        uint32_t security_info_sent)
 946 {
 947         struct security_descriptor *psd = NULL;
 948         NTSTATUS status;
 949
 950         if (sd_len == 0) {
 951                 return NT_STATUS_INVALID_PARAMETER;
 952         }
 953
 954         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 955
 956         if (!NT_STATUS_IS_OK(status)) {
 957                 return status;
 958         }
 959
 960         return set_sd(fsp, psd, security_info_sent);
 961 }
 962
 963 /****************************************************************************
 964  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
 965 ****************************************************************************/
 966
 967 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
 968 {
 969         struct ea_list *ea_list_head = NULL;
 970         size_t offset = 0;
 971
 972         if (data_size < 4) {
 973                 return NULL;
 974         }
 975
 976         while (offset + 4 <= data_size) {
 977                 size_t next_offset = IVAL(pdata,offset);
 978                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
 979
 980                 if (!eal) {
 981                         return NULL;
 982                 }
 983
 984                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
 985                 if (next_offset == 0) {
 986                         break;
 987                 }
 988
 989                 /* Integer wrap protection for the increment. */
 990                 if (offset + next_offset < offset) {
 991                         break;
 992                 }
 993
 994                 offset += next_offset;
 995
 996                 /* Integer wrap protection for while loop. */
 997                 if (offset + 4 < offset) {
 998                         break;
 999                 }
1000
1001         }
1002
1003         return ea_list_head;
1004 }
1005
1006 /****************************************************************************
1007  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1008 ****************************************************************************/
1009
1010 static void call_nt_transact_create(connection_struct *conn,
1011                                     struct smb_request *req,
1012                                     uint16 **ppsetup, uint32 setup_count,
1013                                     char **ppparams, uint32 parameter_count,
1014                                     char **ppdata, uint32 data_count,
1015                                     uint32 max_data_count)
1016 {
1017         struct smb_filename *smb_fname = NULL;
1018         char *fname = NULL;
1019         char *params = *ppparams;
1020         char *data = *ppdata;
1021         /* Breakout the oplock request bits so we can set the reply bits separately. */
1022         uint32 fattr=0;
1023         SMB_OFF_T file_len = 0;
1024         int info = 0;
1025         files_struct *fsp = NULL;
1026         char *p = NULL;
1027         uint32 flags;
1028         uint32 access_mask;
1029         uint32 file_attributes;
1030         uint32 share_access;
1031         uint32 create_disposition;
1032         uint32 create_options;
1033         uint32 sd_len;
1034         struct security_descriptor *sd = NULL;
1035         uint32 ea_len;
1036         uint16 root_dir_fid;
1037         struct timespec create_timespec;
1038         struct timespec c_timespec;
1039         struct timespec a_timespec;
1040         struct timespec m_timespec;
1041         struct timespec write_time_ts;
1042         struct ea_list *ea_list = NULL;
1043         NTSTATUS status;
1044         size_t param_len;
1045         uint64_t allocation_size;
1046         int oplock_request;
1047         uint8_t oplock_granted;
1048         struct case_semantics_state *case_state = NULL;
1049         TALLOC_CTX *ctx = talloc_tos();
1050
1051         DEBUG(5,("call_nt_transact_create\n"));
1052
1053         /*
1054          * If it's an IPC, use the pipe handler.
1055          */
1056
1057         if (IS_IPC(conn)) {
1058                 if (lp_nt_pipe_support()) {
1059                         do_nt_transact_create_pipe(
1060                                 conn, req,
1061                                 ppsetup, setup_count,
1062                                 ppparams, parameter_count,
1063                                 ppdata, data_count);
1064                         goto out;
1065                 }
1066                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1067                 goto out;
1068         }
1069
1070         /*
1071          * Ensure minimum number of parameters sent.
1072          */
1073
1074         if(parameter_count < 54) {
1075                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1076                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1077                 goto out;
1078         }
1079
1080         flags = IVAL(params,0);
1081         access_mask = IVAL(params,8);
1082         file_attributes = IVAL(params,20);
1083         share_access = IVAL(params,24);
1084         create_disposition = IVAL(params,28);
1085         create_options = IVAL(params,32);
1086         sd_len = IVAL(params,36);
1087         ea_len = IVAL(params,40);
1088         root_dir_fid = (uint16)IVAL(params,4);
1089         allocation_size = BVAL(params,12);
1090
1091         /*
1092          * we need to remove ignored bits when they come directly from the client
1093          * because we reuse some of them for internal stuff
1094          */
1095         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1096
1097         /* Ensure the data_len is correct for the sd and ea values given. */
1098         if ((ea_len + sd_len > data_count)
1099             || (ea_len > data_count) || (sd_len > data_count)
1100             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1101                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1102                            "%u, data_count = %u\n", (unsigned int)ea_len,
1103                            (unsigned int)sd_len, (unsigned int)data_count));
1104                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1105                 goto out;
1106         }
1107
1108         if (sd_len) {
1109                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1110                            sd_len));
1111
1112                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1113                                              &sd);
1114                 if (!NT_STATUS_IS_OK(status)) {
1115                         DEBUG(10, ("call_nt_transact_create: "
1116                                    "unmarshall_sec_desc failed: %s\n",
1117                                    nt_errstr(status)));
1118                         reply_nterror(req, status);
1119                         goto out;
1120                 }
1121         }
1122
1123         if (ea_len) {
1124                 if (!lp_ea_support(SNUM(conn))) {
1125                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1126                                    "EA's not supported.\n",
1127                                    (unsigned int)ea_len));
1128                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1129                         goto out;
1130                 }
1131
1132                 if (ea_len < 10) {
1133                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1134                                   "too small (should be more than 10)\n",
1135                                   (unsigned int)ea_len ));
1136                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1137                         goto out;
1138                 }
1139
1140                 /* We have already checked that ea_len <= data_count here. */
1141                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1142                                                ea_len);
1143                 if (ea_list == NULL) {
1144                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1145                         goto out;
1146                 }
1147         }
1148
1149         srvstr_get_path(ctx, params, req->flags2, &fname,
1150                         params+53, parameter_count-53,
1151                         STR_TERMINATE, &status);
1152         if (!NT_STATUS_IS_OK(status)) {
1153                 reply_nterror(req, status);
1154                 goto out;
1155         }
1156
1157         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1158                 case_state = set_posix_case_semantics(ctx, conn);
1159                 if (!case_state) {
1160                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1161                         goto out;
1162                 }
1163         }
1164
1165         status = filename_convert(ctx,
1166                                 conn,
1167                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1168                                 fname,
1169                                 (create_disposition == FILE_CREATE)
1170                                         ? UCF_CREATING_FILE : 0,
1171                                 NULL,
1172                                 &smb_fname);
1173
1174         TALLOC_FREE(case_state);
1175
1176         if (!NT_STATUS_IS_OK(status)) {
1177                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1178                         reply_botherror(req,
1179                                 NT_STATUS_PATH_NOT_COVERED,
1180                                 ERRSRV, ERRbadpath);
1181                         goto out;
1182                 }
1183                 reply_nterror(req, status);
1184                 goto out;
1185         }
1186
1187         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1188         if (oplock_request) {
1189                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1190                         ? BATCH_OPLOCK : 0;
1191         }
1192
1193         /*
1194          * Bug #6898 - clients using Windows opens should
1195          * never be able to set this attribute into the
1196          * VFS.
1197          */
1198         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1199
1200         status = SMB_VFS_CREATE_FILE(
1201                 conn,                                   /* conn */
1202                 req,                                    /* req */
1203                 root_dir_fid,                           /* root_dir_fid */
1204                 smb_fname,                              /* fname */
1205                 access_mask,                            /* access_mask */
1206                 share_access,                           /* share_access */
1207                 create_disposition,                     /* create_disposition*/
1208                 create_options,                         /* create_options */
1209                 file_attributes,                        /* file_attributes */
1210                 oplock_request,                         /* oplock_request */
1211                 allocation_size,                        /* allocation_size */
1212                 0,                                      /* private_flags */
1213                 sd,                                     /* sd */
1214                 ea_list,                                /* ea_list */
1215                 &fsp,                                   /* result */
1216                 &info);                                 /* pinfo */
1217
1218         if(!NT_STATUS_IS_OK(status)) {
1219                 if (open_was_deferred(req->mid)) {
1220                         /* We have re-scheduled this call, no error. */
1221                         return;
1222                 }
1223                 reply_openerror(req, status);
1224                 goto out;
1225         }
1226
1227         /* Ensure we're pointing at the correct stat struct. */
1228         TALLOC_FREE(smb_fname);
1229         smb_fname = fsp->fsp_name;
1230
1231         /*
1232          * If the caller set the extended oplock request bit
1233          * and we granted one (by whatever means) - set the
1234          * correct bit for extended oplock reply.
1235          */
1236
1237         if (oplock_request &&
1238             (lp_fake_oplocks(SNUM(conn))
1239              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1240
1241                 /*
1242                  * Exclusive oplock granted
1243                  */
1244
1245                 if (flags & REQUEST_BATCH_OPLOCK) {
1246                         oplock_granted = BATCH_OPLOCK_RETURN;
1247                 } else {
1248                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1249                 }
1250         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1251                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1252         } else {
1253                 oplock_granted = NO_OPLOCK_RETURN;
1254         }
1255
1256         file_len = smb_fname->st.st_ex_size;
1257
1258         /* Realloc the size of parameters and data we will return */
1259         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1260                 /* Extended response is 32 more byyes. */
1261                 param_len = 101;
1262         } else {
1263                 param_len = 69;
1264         }
1265         params = nttrans_realloc(ppparams, param_len);
1266         if(params == NULL) {
1267                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1268                 goto out;
1269         }
1270
1271         p = params;
1272         SCVAL(p, 0, oplock_granted);
1273
1274         p += 2;
1275         SSVAL(p,0,fsp->fnum);
1276         p += 2;
1277         if ((create_disposition == FILE_SUPERSEDE)
1278             && (info == FILE_WAS_OVERWRITTEN)) {
1279                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1280         } else {
1281                 SIVAL(p,0,info);
1282         }
1283         p += 8;
1284
1285         fattr = dos_mode(conn, smb_fname);
1286         if (fattr == 0) {
1287                 fattr = FILE_ATTRIBUTE_NORMAL;
1288         }
1289
1290         /* Deal with other possible opens having a modified
1291            write time. JRA. */
1292         ZERO_STRUCT(write_time_ts);
1293         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1294         if (!null_timespec(write_time_ts)) {
1295                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1296         }
1297
1298         /* Create time. */
1299         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1300         a_timespec = smb_fname->st.st_ex_atime;
1301         m_timespec = smb_fname->st.st_ex_mtime;
1302         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1303
1304         if (lp_dos_filetime_resolution(SNUM(conn))) {
1305                 dos_filetime_timespec(&create_timespec);
1306                 dos_filetime_timespec(&a_timespec);
1307                 dos_filetime_timespec(&m_timespec);
1308                 dos_filetime_timespec(&c_timespec);
1309         }
1310
1311         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1312         p += 8;
1313         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1314         p += 8;
1315         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1316         p += 8;
1317         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1318         p += 8;
1319         SIVAL(p,0,fattr); /* File Attributes. */
1320         p += 4;
1321         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1322         p += 8;
1323         SOFF_T(p,0,file_len);
1324         p += 8;
1325         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1326                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1327                 size_t num_names = 0;
1328                 unsigned int num_streams = 0;
1329                 struct stream_struct *streams = NULL;
1330
1331                 /* Do we have any EA's ? */
1332                 status = get_ea_names_from_file(ctx, conn, fsp,
1333                                 smb_fname->base_name, NULL, &num_names);
1334                 if (NT_STATUS_IS_OK(status) && num_names) {
1335                         file_status &= ~NO_EAS;
1336                 }
1337                 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
1338                         &num_streams, &streams);
1339                 /* There is always one stream, ::$DATA. */
1340                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1341                         file_status &= ~NO_SUBSTREAMS;
1342                 }
1343                 TALLOC_FREE(streams);
1344                 SSVAL(p,2,file_status);
1345         }
1346         p += 4;
1347         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1348
1349         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1350                 uint32 perms = 0;
1351                 p += 25;
1352                 if (fsp->is_directory ||
1353                     can_write_to_file(conn, smb_fname)) {
1354                         perms = FILE_GENERIC_ALL;
1355                 } else {
1356                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1357                 }
1358                 SIVAL(p,0,perms);
1359         }
1360
1361         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1362                  smb_fname_str_dbg(smb_fname)));
1363
1364         /* Send the required number of replies */
1365         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1366  out:
1367         return;
1368 }
1369
1370 /****************************************************************************
1371  Reply to a NT CANCEL request.
1372  conn POINTER CAN BE NULL HERE !
1373 ****************************************************************************/
1374
1375 void reply_ntcancel(struct smb_request *req)
1376 {
1377         /*
1378          * Go through and cancel any pending change notifies.
1379          */
1380
1381         START_PROFILE(SMBntcancel);
1382         srv_cancel_sign_response(req->sconn);
1383         remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1384         remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1385
1386         DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1387                 (unsigned long long)req->mid));
1388
1389         END_PROFILE(SMBntcancel);
1390         return;
1391 }
1392
1393 /****************************************************************************
1394  Copy a file.
1395 ****************************************************************************/
1396
1397 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1398                                 connection_struct *conn,
1399                                 struct smb_request *req,
1400                                 struct smb_filename *smb_fname_src,
1401                                 struct smb_filename *smb_fname_dst,
1402                                 uint32 attrs)
1403 {
1404         files_struct *fsp1,*fsp2;
1405         uint32 fattr;
1406         int info;
1407         SMB_OFF_T ret=-1;
1408         NTSTATUS status = NT_STATUS_OK;
1409         char *parent;
1410
1411         if (!CAN_WRITE(conn)) {
1412                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1413                 goto out;
1414         }
1415
1416         /* Source must already exist. */
1417         if (!VALID_STAT(smb_fname_src->st)) {
1418                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1419                 goto out;
1420         }
1421
1422         /* Ensure attributes match. */
1423         fattr = dos_mode(conn, smb_fname_src);
1424         if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1425                 status = NT_STATUS_NO_SUCH_FILE;
1426                 goto out;
1427         }
1428
1429         /* Disallow if dst file already exists. */
1430         if (VALID_STAT(smb_fname_dst->st)) {
1431                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1432                 goto out;
1433         }
1434
1435         /* No links from a directory. */
1436         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1437                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1438                 goto out;
1439         }
1440
1441         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1442                   smb_fname_str_dbg(smb_fname_src),
1443                   smb_fname_str_dbg(smb_fname_dst)));
1444
1445         status = SMB_VFS_CREATE_FILE(
1446                 conn,                                   /* conn */
1447                 req,                                    /* req */
1448                 0,                                      /* root_dir_fid */
1449                 smb_fname_src,                          /* fname */
1450                 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1451                         FILE_READ_EA,                   /* access_mask */
1452                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1453                     FILE_SHARE_DELETE),
1454                 FILE_OPEN,                              /* create_disposition*/
1455                 0,                                      /* create_options */
1456                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1457                 NO_OPLOCK,                              /* oplock_request */
1458                 0,                                      /* allocation_size */
1459                 0,                                      /* private_flags */
1460                 NULL,                                   /* sd */
1461                 NULL,                                   /* ea_list */
1462                 &fsp1,                                  /* result */
1463                 &info);                                 /* pinfo */
1464
1465         if (!NT_STATUS_IS_OK(status)) {
1466                 goto out;
1467         }
1468
1469         status = SMB_VFS_CREATE_FILE(
1470                 conn,                                   /* conn */
1471                 req,                                    /* req */
1472                 0,                                      /* root_dir_fid */
1473                 smb_fname_dst,                          /* fname */
1474                 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1475                         FILE_WRITE_EA,                  /* access_mask */
1476                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1477                     FILE_SHARE_DELETE),
1478                 FILE_CREATE,                            /* create_disposition*/
1479                 0,                                      /* create_options */
1480                 fattr,                                  /* file_attributes */
1481                 NO_OPLOCK,                              /* oplock_request */
1482                 0,                                      /* allocation_size */
1483                 0,                                      /* private_flags */
1484                 NULL,                                   /* sd */
1485                 NULL,                                   /* ea_list */
1486                 &fsp2,                                  /* result */
1487                 &info);                                 /* pinfo */
1488
1489         if (!NT_STATUS_IS_OK(status)) {
1490                 close_file(NULL, fsp1, ERROR_CLOSE);
1491                 goto out;
1492         }
1493
1494         if (smb_fname_src->st.st_ex_size) {
1495                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1496         }
1497
1498         /*
1499          * As we are opening fsp1 read-only we only expect
1500          * an error on close on fsp2 if we are out of space.
1501          * Thus we don't look at the error return from the
1502          * close of fsp1.
1503          */
1504         close_file(NULL, fsp1, NORMAL_CLOSE);
1505
1506         /* Ensure the modtime is set correctly on the destination file. */
1507         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1508
1509         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1510
1511         /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1512            creates the file. This isn't the correct thing to do in the copy
1513            case. JRA */
1514         if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1515                             NULL)) {
1516                 status = NT_STATUS_NO_MEMORY;
1517                 goto out;
1518         }
1519         file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1520         TALLOC_FREE(parent);
1521
1522         if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1523                 status = NT_STATUS_DISK_FULL;
1524                 goto out;
1525         }
1526  out:
1527         if (!NT_STATUS_IS_OK(status)) {
1528                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1529                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1530                         smb_fname_str_dbg(smb_fname_dst)));
1531         }
1532
1533         return status;
1534 }
1535
1536 /****************************************************************************
1537  Reply to a NT rename request.
1538 ****************************************************************************/
1539
1540 void reply_ntrename(struct smb_request *req)
1541 {
1542         connection_struct *conn = req->conn;
1543         struct smb_filename *smb_fname_old = NULL;
1544         struct smb_filename *smb_fname_new = NULL;
1545         char *oldname = NULL;
1546         char *newname = NULL;
1547         const char *p;
1548         NTSTATUS status;
1549         bool src_has_wcard = False;
1550         bool dest_has_wcard = False;
1551         uint32 attrs;
1552         uint32_t ucf_flags_src = 0;
1553         uint32_t ucf_flags_dst = 0;
1554         uint16 rename_type;
1555         TALLOC_CTX *ctx = talloc_tos();
1556         bool stream_rename = false;
1557
1558         START_PROFILE(SMBntrename);
1559
1560         if (req->wct < 4) {
1561                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1562                 goto out;
1563         }
1564
1565         attrs = SVAL(req->vwv+0, 0);
1566         rename_type = SVAL(req->vwv+1, 0);
1567
1568         p = (const char *)req->buf + 1;
1569         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1570                                        &status, &src_has_wcard);
1571         if (!NT_STATUS_IS_OK(status)) {
1572                 reply_nterror(req, status);
1573                 goto out;
1574         }
1575
1576         if (ms_has_wild(oldname)) {
1577                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1578                 goto out;
1579         }
1580
1581         p++;
1582         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1583                                        &status, &dest_has_wcard);
1584         if (!NT_STATUS_IS_OK(status)) {
1585                 reply_nterror(req, status);
1586                 goto out;
1587         }
1588
1589         if (!lp_posix_pathnames()) {
1590                 /* The newname must begin with a ':' if the
1591                    oldname contains a ':'. */
1592                 if (strchr_m(oldname, ':')) {
1593                         if (newname[0] != ':') {
1594                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1595                                 goto out;
1596                         }
1597                         stream_rename = true;
1598                 }
1599         }
1600
1601         /*
1602          * If this is a rename operation, allow wildcards and save the
1603          * destination's last component.
1604          */
1605         if (rename_type == RENAME_FLAG_RENAME) {
1606                 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1607                 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1608         }
1609
1610         /* rename_internals() calls unix_convert(), so don't call it here. */
1611         status = filename_convert(ctx, conn,
1612                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1613                                   oldname,
1614                                   ucf_flags_src,
1615                                   NULL,
1616                                   &smb_fname_old);
1617         if (!NT_STATUS_IS_OK(status)) {
1618                 if (NT_STATUS_EQUAL(status,
1619                                     NT_STATUS_PATH_NOT_COVERED)) {
1620                         reply_botherror(req,
1621                                         NT_STATUS_PATH_NOT_COVERED,
1622                                         ERRSRV, ERRbadpath);
1623                         goto out;
1624                 }
1625                 reply_nterror(req, status);
1626                 goto out;
1627         }
1628
1629         status = filename_convert(ctx, conn,
1630                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1631                                   newname,
1632                                   ucf_flags_dst,
1633                                   &dest_has_wcard,
1634                                   &smb_fname_new);
1635         if (!NT_STATUS_IS_OK(status)) {
1636                 if (NT_STATUS_EQUAL(status,
1637                                     NT_STATUS_PATH_NOT_COVERED)) {
1638                         reply_botherror(req,
1639                                         NT_STATUS_PATH_NOT_COVERED,
1640                                         ERRSRV, ERRbadpath);
1641                         goto out;
1642                 }
1643                 reply_nterror(req, status);
1644                 goto out;
1645         }
1646
1647         if (stream_rename) {
1648                 /* smb_fname_new must be the same as smb_fname_old. */
1649                 TALLOC_FREE(smb_fname_new->base_name);
1650                 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1651                                                 smb_fname_old->base_name);
1652                 if (!smb_fname_new->base_name) {
1653                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1654                         goto out;
1655                 }
1656         }
1657
1658         DEBUG(3,("reply_ntrename: %s -> %s\n",
1659                  smb_fname_str_dbg(smb_fname_old),
1660                  smb_fname_str_dbg(smb_fname_new)));
1661
1662         switch(rename_type) {
1663                 case RENAME_FLAG_RENAME:
1664                         status = rename_internals(ctx, conn, req,
1665                                                   smb_fname_old, smb_fname_new,
1666                                                   attrs, False, src_has_wcard,
1667                                                   dest_has_wcard,
1668                                                   DELETE_ACCESS);
1669                         break;
1670                 case RENAME_FLAG_HARD_LINK:
1671                         if (src_has_wcard || dest_has_wcard) {
1672                                 /* No wildcards. */
1673                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1674                         } else {
1675                                 status = hardlink_internals(ctx, conn,
1676                                                             req,
1677                                                             false,
1678                                                             smb_fname_old,
1679                                                             smb_fname_new);
1680                         }
1681                         break;
1682                 case RENAME_FLAG_COPY:
1683                         if (src_has_wcard || dest_has_wcard) {
1684                                 /* No wildcards. */
1685                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1686                         } else {
1687                                 status = copy_internals(ctx, conn, req,
1688                                                         smb_fname_old,
1689                                                         smb_fname_new,
1690                                                         attrs);
1691                         }
1692                         break;
1693                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1694                         status = NT_STATUS_INVALID_PARAMETER;
1695                         break;
1696                 default:
1697                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1698                         break;
1699         }
1700
1701         if (!NT_STATUS_IS_OK(status)) {
1702                 if (open_was_deferred(req->mid)) {
1703                         /* We have re-scheduled this call. */
1704                         goto out;
1705                 }
1706
1707                 reply_nterror(req, status);
1708                 goto out;
1709         }
1710
1711         reply_outbuf(req, 0, 0);
1712  out:
1713         END_PROFILE(SMBntrename);
1714         return;
1715 }
1716
1717 /****************************************************************************
1718  Reply to a notify change - queue the request and
1719  don't allow a directory to be opened.
1720 ****************************************************************************/
1721
1722 static void smbd_smb1_notify_reply(struct smb_request *req,
1723                                    NTSTATUS error_code,
1724                                    uint8_t *buf, size_t len)
1725 {
1726         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1727 }
1728
1729 static void call_nt_transact_notify_change(connection_struct *conn,
1730                                            struct smb_request *req,
1731                                            uint16 **ppsetup,
1732                                            uint32 setup_count,
1733                                            char **ppparams,
1734                                            uint32 parameter_count,
1735                                            char **ppdata, uint32 data_count,
1736                                            uint32 max_data_count,
1737                                            uint32 max_param_count)
1738 {
1739         uint16 *setup = *ppsetup;
1740         files_struct *fsp;
1741         uint32 filter;
1742         NTSTATUS status;
1743         bool recursive;
1744
1745         if(setup_count < 6) {
1746                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1747                 return;
1748         }
1749
1750         fsp = file_fsp(req, SVAL(setup,4));
1751         filter = IVAL(setup, 0);
1752         recursive = (SVAL(setup, 6) != 0) ? True : False;
1753
1754         DEBUG(3,("call_nt_transact_notify_change\n"));
1755
1756         if(!fsp) {
1757                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1758                 return;
1759         }
1760
1761         {
1762                 char *filter_string;
1763
1764                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1765                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1766                         return;
1767                 }
1768
1769                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1770                          "called on %s, filter = %s, recursive = %d\n",
1771                          fsp_str_dbg(fsp), filter_string, recursive));
1772
1773                 TALLOC_FREE(filter_string);
1774         }
1775
1776         if((!fsp->is_directory) || (conn != fsp->conn)) {
1777                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1778                 return;
1779         }
1780
1781         if (fsp->notify == NULL) {
1782
1783                 status = change_notify_create(fsp, filter, recursive);
1784
1785                 if (!NT_STATUS_IS_OK(status)) {
1786                         DEBUG(10, ("change_notify_create returned %s\n",
1787                                    nt_errstr(status)));
1788                         reply_nterror(req, status);
1789                         return;
1790                 }
1791         }
1792
1793         if (fsp->notify->num_changes != 0) {
1794
1795                 /*
1796                  * We've got changes pending, respond immediately
1797                  */
1798
1799                 /*
1800                  * TODO: write a torture test to check the filtering behaviour
1801                  * here.
1802                  */
1803
1804                 change_notify_reply(req,
1805                                     NT_STATUS_OK,
1806                                     max_param_count,
1807                                     fsp->notify,
1808                                     smbd_smb1_notify_reply);
1809
1810                 /*
1811                  * change_notify_reply() above has independently sent its
1812                  * results
1813                  */
1814                 return;
1815         }
1816
1817         /*
1818          * No changes pending, queue the request
1819          */
1820
1821         status = change_notify_add_request(req,
1822                         max_param_count,
1823                         filter,
1824                         recursive, fsp,
1825                         smbd_smb1_notify_reply);
1826         if (!NT_STATUS_IS_OK(status)) {
1827                 reply_nterror(req, status);
1828         }
1829         return;
1830 }
1831
1832 /****************************************************************************
1833  Reply to an NT transact rename command.
1834 ****************************************************************************/
1835
1836 static void call_nt_transact_rename(connection_struct *conn,
1837                                     struct smb_request *req,
1838                                     uint16 **ppsetup, uint32 setup_count,
1839                                     char **ppparams, uint32 parameter_count,
1840                                     char **ppdata, uint32 data_count,
1841                                     uint32 max_data_count)
1842 {
1843         char *params = *ppparams;
1844         char *new_name = NULL;
1845         files_struct *fsp = NULL;
1846         bool dest_has_wcard = False;
1847         NTSTATUS status;
1848         TALLOC_CTX *ctx = talloc_tos();
1849
1850         if(parameter_count < 5) {
1851                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1852                 return;
1853         }
1854
1855         fsp = file_fsp(req, SVAL(params, 0));
1856         if (!check_fsp(conn, req, fsp)) {
1857                 return;
1858         }
1859         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1860                               parameter_count - 4,
1861                               STR_TERMINATE, &status, &dest_has_wcard);
1862         if (!NT_STATUS_IS_OK(status)) {
1863                 reply_nterror(req, status);
1864                 return;
1865         }
1866
1867         /*
1868          * W2K3 ignores this request as the RAW-RENAME test
1869          * demonstrates, so we do.
1870          */
1871         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1872
1873         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1874                  fsp_str_dbg(fsp), new_name));
1875
1876         return;
1877 }
1878
1879 /******************************************************************************
1880  Fake up a completely empty SD.
1881 *******************************************************************************/
1882
1883 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1884 {
1885         size_t sd_size;
1886
1887         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1888         if(!*ppsd) {
1889                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1890                 return NT_STATUS_NO_MEMORY;
1891         }
1892
1893         return NT_STATUS_OK;
1894 }
1895
1896 /****************************************************************************
1897  Reply to query a security descriptor.
1898  Callable from SMB2 and SMB2.
1899  If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1900  the required size.
1901 ****************************************************************************/
1902
1903 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1904                                         TALLOC_CTX *mem_ctx,
1905                                         files_struct *fsp,
1906                                         uint32_t security_info_wanted,
1907                                         uint32_t max_data_count,
1908                                         uint8_t **ppmarshalled_sd,
1909                                         size_t *psd_size)
1910 {
1911         NTSTATUS status;
1912         struct security_descriptor *psd = NULL;
1913
1914         /*
1915          * Get the permissions to return.
1916          */
1917
1918         if ((security_info_wanted & SECINFO_SACL) &&
1919                         !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1920                 return NT_STATUS_ACCESS_DENIED;
1921         }
1922
1923         if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1924                         !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1925                 return NT_STATUS_ACCESS_DENIED;
1926         }
1927
1928         if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1929                         SECINFO_GROUP|SECINFO_SACL)) {
1930                 /* Don't return SECINFO_LABEL if anything else was
1931                    requested. See bug #8458. */
1932                 security_info_wanted &= ~SECINFO_LABEL;
1933         }
1934
1935         if (!lp_nt_acl_support(SNUM(conn))) {
1936                 status = get_null_nt_acl(mem_ctx, &psd);
1937         } else if (security_info_wanted & SECINFO_LABEL) {
1938                 /* Like W2K3 return a null object. */
1939                 status = get_null_nt_acl(mem_ctx, &psd);
1940         } else {
1941                 status = SMB_VFS_FGET_NT_ACL(
1942                         fsp, security_info_wanted, &psd);
1943         }
1944         if (!NT_STATUS_IS_OK(status)) {
1945                 return status;
1946         }
1947
1948         if (!(security_info_wanted & SECINFO_OWNER)) {
1949                 psd->owner_sid = NULL;
1950         }
1951         if (!(security_info_wanted & SECINFO_GROUP)) {
1952                 psd->group_sid = NULL;
1953         }
1954         if (!(security_info_wanted & SECINFO_DACL)) {
1955                 psd->type &= ~SEC_DESC_DACL_PRESENT;
1956                 psd->dacl = NULL;
1957         }
1958         if (!(security_info_wanted & SECINFO_SACL)) {
1959                 psd->type &= ~SEC_DESC_SACL_PRESENT;
1960                 psd->sacl = NULL;
1961         }
1962
1963         /* If the SACL/DACL is NULL, but was requested, we mark that it is
1964          * present in the reply to match Windows behavior */
1965         if (psd->sacl == NULL &&
1966             security_info_wanted & SECINFO_SACL)
1967                 psd->type |= SEC_DESC_SACL_PRESENT;
1968         if (psd->dacl == NULL &&
1969             security_info_wanted & SECINFO_DACL)
1970                 psd->type |= SEC_DESC_DACL_PRESENT;
1971
1972         if (security_info_wanted & SECINFO_LABEL) {
1973                 /* Like W2K3 return a null object. */
1974                 psd->owner_sid = NULL;
1975                 psd->group_sid = NULL;
1976                 psd->dacl = NULL;
1977                 psd->sacl = NULL;
1978                 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
1979         }
1980
1981         *psd_size = ndr_size_security_descriptor(psd, 0);
1982
1983         DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1984                 (unsigned long)*psd_size));
1985
1986         if (DEBUGLEVEL >= 10) {
1987                 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1988                           fsp_str_dbg(fsp)));
1989                 NDR_PRINT_DEBUG(security_descriptor, psd);
1990         }
1991
1992         if (max_data_count < *psd_size) {
1993                 TALLOC_FREE(psd);
1994                 return NT_STATUS_BUFFER_TOO_SMALL;
1995         }
1996
1997         status = marshall_sec_desc(mem_ctx, psd,
1998                                    ppmarshalled_sd, psd_size);
1999
2000         if (!NT_STATUS_IS_OK(status)) {
2001                 TALLOC_FREE(psd);
2002                 return status;
2003         }
2004
2005         TALLOC_FREE(psd);
2006         return NT_STATUS_OK;
2007 }
2008
2009 /****************************************************************************
2010  SMB1 reply to query a security descriptor.
2011 ****************************************************************************/
2012
2013 static void call_nt_transact_query_security_desc(connection_struct *conn,
2014                                                  struct smb_request *req,
2015                                                  uint16 **ppsetup,
2016                                                  uint32 setup_count,
2017                                                  char **ppparams,
2018                                                  uint32 parameter_count,
2019                                                  char **ppdata,
2020                                                  uint32 data_count,
2021                                                  uint32 max_data_count)
2022 {
2023         char *params = *ppparams;
2024         char *data = *ppdata;
2025         size_t sd_size = 0;
2026         uint32 security_info_wanted;
2027         files_struct *fsp = NULL;
2028         NTSTATUS status;
2029         uint8_t *marshalled_sd = NULL;
2030
2031         if(parameter_count < 8) {
2032                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2033                 return;
2034         }
2035
2036         fsp = file_fsp(req, SVAL(params,0));
2037         if(!fsp) {
2038                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2039                 return;
2040         }
2041
2042         security_info_wanted = IVAL(params,4);
2043
2044         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2045                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2046                  (unsigned int)security_info_wanted));
2047
2048         params = nttrans_realloc(ppparams, 4);
2049         if(params == NULL) {
2050                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2051                 return;
2052         }
2053
2054         /*
2055          * Get the permissions to return.
2056          */
2057
2058         status = smbd_do_query_security_desc(conn,
2059                                         talloc_tos(),
2060                                         fsp,
2061                                         security_info_wanted,
2062                                         max_data_count,
2063                                         &marshalled_sd,
2064                                         &sd_size);
2065
2066         if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2067                 SIVAL(params,0,(uint32_t)sd_size);
2068                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2069                         params, 4, NULL, 0);
2070                 return;
2071         }
2072
2073         if (!NT_STATUS_IS_OK(status)) {
2074                 reply_nterror(req, status);
2075                 return;
2076         }
2077
2078         SMB_ASSERT(sd_size > 0);
2079
2080         SIVAL(params,0,(uint32_t)sd_size);
2081
2082         if (max_data_count < sd_size) {
2083                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2084                                 params, 4, NULL, 0);
2085                 return;
2086         }
2087
2088         /*
2089          * Allocate the data we will return.
2090          */
2091
2092         data = nttrans_realloc(ppdata, sd_size);
2093         if(data == NULL) {
2094                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2095                 return;
2096         }
2097
2098         memcpy(data, marshalled_sd, sd_size);
2099
2100         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2101
2102         return;
2103 }
2104
2105 /****************************************************************************
2106  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2107 ****************************************************************************/
2108
2109 static void call_nt_transact_set_security_desc(connection_struct *conn,
2110                                                struct smb_request *req,
2111                                                uint16 **ppsetup,
2112                                                uint32 setup_count,
2113                                                char **ppparams,
2114                                                uint32 parameter_count,
2115                                                char **ppdata,
2116                                                uint32 data_count,
2117                                                uint32 max_data_count)
2118 {
2119         char *params= *ppparams;
2120         char *data = *ppdata;
2121         files_struct *fsp = NULL;
2122         uint32 security_info_sent = 0;
2123         NTSTATUS status;
2124
2125         if(parameter_count < 8) {
2126                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2127                 return;
2128         }
2129
2130         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2131                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2132                 return;
2133         }
2134
2135         if (!CAN_WRITE(fsp->conn)) {
2136                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2137                 return;
2138         }
2139
2140         if(!lp_nt_acl_support(SNUM(conn))) {
2141                 goto done;
2142         }
2143
2144         security_info_sent = IVAL(params,4);
2145
2146         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2147                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2148
2149         if (data_count == 0) {
2150                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2151                 return;
2152         }
2153
2154         status = set_sd_blob(fsp, (uint8 *)data, data_count, security_info_sent);
2155
2156         if (!NT_STATUS_IS_OK(status)) {
2157                 reply_nterror(req, status);
2158                 return;
2159         }
2160
2161   done:
2162         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2163         return;
2164 }
2165
2166 /*
2167  * Implement the default fsctl operation.
2168  */
2169
2170 static bool vfswrap_logged_ioctl_message = false;
2171
2172 /*
2173  * In 3.6 we do not have a SMB_VFS_FSCTL() function
2174  * it's just faked to make it more look like
2175  * master (4.0)
2176  */
2177 NTSTATUS smb_fsctl(struct files_struct *fsp,
2178                        TALLOC_CTX *ctx,
2179                        uint32_t function,
2180                        uint16_t req_flags,  /* Needed for UNICODE ... */
2181                        const uint8_t *_in_data,
2182                        uint32_t in_len,
2183                        uint8_t **_out_data,
2184                        uint32_t max_out_len,
2185                        uint32_t *out_len)
2186 {
2187         const char *in_data = (const char *)_in_data;
2188         char **out_data = (char **)_out_data;
2189
2190         switch (function) {
2191         case FSCTL_SET_SPARSE:
2192         {
2193                 bool set_sparse = true;
2194                 NTSTATUS status;
2195
2196                 if (in_len >= 1 && in_data[0] == 0) {
2197                         set_sparse = false;
2198                 }
2199
2200                 status = file_set_sparse(fsp->conn, fsp, set_sparse);
2201
2202                 DEBUG(NT_STATUS_IS_OK(status) ? 10 : 9,
2203                       ("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
2204                        smb_fname_str_dbg(fsp->fsp_name), set_sparse,
2205                        nt_errstr(status)));
2206
2207                 return status;
2208         }
2209
2210         case FSCTL_CREATE_OR_GET_OBJECT_ID:
2211         {
2212                 unsigned char objid[16];
2213                 char *return_data = NULL;
2214
2215                 /* This should return the object-id on this file.
2216                  * I think I'll make this be the inode+dev. JRA.
2217                  */
2218
2219                 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fsp->fnum));
2220
2221                 *out_len = (max_out_len >= 64) ? 64 : max_out_len;
2222                 /* Hmmm, will this cause problems if less data asked for? */
2223                 return_data = talloc_array(ctx, char, 64);
2224                 if (return_data == NULL) {
2225                         return NT_STATUS_NO_MEMORY;
2226                 }
2227
2228                 /* For backwards compatibility only store the dev/inode. */
2229                 push_file_id_16(return_data, &fsp->file_id);
2230                 memcpy(return_data+16,create_volume_objectid(fsp->conn,objid),16);
2231                 push_file_id_16(return_data+32, &fsp->file_id);
2232                 *out_data = return_data;
2233                 return NT_STATUS_OK;
2234         }
2235
2236         case FSCTL_GET_REPARSE_POINT:
2237         {
2238                 /* Fail it with STATUS_NOT_A_REPARSE_POINT */
2239                 DEBUG(10, ("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X] Status: NOT_IMPLEMENTED\n", fsp->fnum));
2240                 return NT_STATUS_NOT_A_REPARSE_POINT;
2241         }
2242
2243         case FSCTL_SET_REPARSE_POINT:
2244         {
2245                 /* Fail it with STATUS_NOT_A_REPARSE_POINT */
2246                 DEBUG(10, ("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X] Status: NOT_IMPLEMENTED\n", fsp->fnum));
2247                 return NT_STATUS_NOT_A_REPARSE_POINT;
2248         }
2249
2250         case FSCTL_GET_SHADOW_COPY_DATA:
2251         {
2252                 /*
2253                  * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2254                  * and return their volume names.  If max_data_count is 16, then it is just
2255                  * asking for the number of volumes and length of the combined names.
2256                  *
2257                  * pdata is the data allocated by our caller, but that uses
2258                  * total_data_count (which is 0 in our case) rather than max_data_count.
2259                  * Allocate the correct amount and return the pointer to let
2260                  * it be deallocated when we return.
2261                  */
2262                 struct shadow_copy_data *shadow_data = NULL;
2263                 bool labels = False;
2264                 uint32 labels_data_count = 0;
2265                 uint32 i;
2266                 char *cur_pdata = NULL;
2267
2268                 if (max_out_len < 16) {
2269                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2270                                 max_out_len));
2271                         return NT_STATUS_INVALID_PARAMETER;
2272                 }
2273
2274                 if (max_out_len > 16) {
2275                         labels = True;
2276                 }
2277
2278                 shadow_data = talloc_zero(ctx, struct shadow_copy_data);
2279                 if (shadow_data == NULL) {
2280                         DEBUG(0,("TALLOC_ZERO() failed!\n"));
2281                         return NT_STATUS_NO_MEMORY;
2282                 }
2283
2284                 /*
2285                  * Call the VFS routine to actually do the work.
2286                  */
2287                 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2288                         TALLOC_FREE(shadow_data);
2289                         if (errno == ENOSYS) {
2290                                 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2291                                         fsp->conn->connectpath));
2292                                 return NT_STATUS_NOT_SUPPORTED;
2293                         } else {
2294                                 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2295                                         fsp->conn->connectpath));
2296                                 return NT_STATUS_UNSUCCESSFUL;
2297                         }
2298                 }
2299
2300                 labels_data_count = (shadow_data->num_volumes * 2 *
2301                                         sizeof(SHADOW_COPY_LABEL)) + 2;
2302
2303                 if (!labels) {
2304                         *out_len = 16;
2305                 } else {
2306                         *out_len = 12 + labels_data_count + 4;
2307                 }
2308
2309                 if (max_out_len < *out_len) {
2310                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2311                                 max_out_len, *out_len));
2312                         TALLOC_FREE(shadow_data);
2313                         return NT_STATUS_BUFFER_TOO_SMALL;
2314                 }
2315
2316                 cur_pdata = talloc_array(ctx, char, *out_len);
2317                 if (cur_pdata == NULL) {
2318                         TALLOC_FREE(shadow_data);
2319                         return NT_STATUS_NO_MEMORY;
2320                 }
2321
2322                 *out_data = cur_pdata;
2323
2324                 /* num_volumes 4 bytes */
2325                 SIVAL(cur_pdata, 0, shadow_data->num_volumes);
2326
2327                 if (labels) {
2328                         /* num_labels 4 bytes */
2329                         SIVAL(cur_pdata, 4, shadow_data->num_volumes);
2330                 }
2331
2332                 /* needed_data_count 4 bytes */
2333                 SIVAL(cur_pdata, 8, labels_data_count + 4);
2334
2335                 cur_pdata += 12;
2336
2337                 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2338                           shadow_data->num_volumes, fsp_str_dbg(fsp)));
2339                 if (labels && shadow_data->labels) {
2340                         for (i=0; i<shadow_data->num_volumes; i++) {
2341                                 srvstr_push(cur_pdata, req_flags,
2342                                             cur_pdata, shadow_data->labels[i],
2343                                             2 * sizeof(SHADOW_COPY_LABEL),
2344                                             STR_UNICODE|STR_TERMINATE);
2345                                 cur_pdata += 2 * sizeof(SHADOW_COPY_LABEL);
2346                                 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2347                         }
2348                 }
2349
2350                 TALLOC_FREE(shadow_data);
2351
2352                 return NT_STATUS_OK;
2353         }
2354
2355         case FSCTL_FIND_FILES_BY_SID:
2356         {
2357                 /* pretend this succeeded -
2358                  *
2359                  * we have to send back a list with all files owned by this SID
2360                  *
2361                  * but I have to check that --metze
2362                  */
2363                 struct dom_sid sid;
2364                 uid_t uid;
2365                 size_t sid_len;
2366
2367                 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n", fsp->fnum));
2368
2369                 if (in_len < 8) {
2370                         /* NT_STATUS_BUFFER_TOO_SMALL maybe? */
2371                         return NT_STATUS_INVALID_PARAMETER;
2372                 }
2373
2374                 sid_len = MIN(in_len - 4,SID_MAX_SIZE);
2375
2376                 /* unknown 4 bytes: this is not the length of the sid :-(  */
2377                 /*unknown = IVAL(pdata,0);*/
2378
2379                 if (!sid_parse(in_data + 4, sid_len, &sid)) {
2380                         return NT_STATUS_INVALID_PARAMETER;
2381                 }
2382                 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2383
2384                 if (!sid_to_uid(&sid, &uid)) {
2385                         DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2386                                  sid_string_dbg(&sid),
2387                                  (unsigned long)sid_len));
2388                         uid = (-1);
2389                 }
2390
2391                 /* we can take a look at the find source :-)
2392                  *
2393                  * find ./ -uid $uid  -name '*'   is what we need here
2394                  *
2395                  *
2396                  * and send 4bytes len and then NULL terminated unicode strings
2397                  * for each file
2398                  *
2399                  * but I don't know how to deal with the paged results
2400                  * (maybe we can hang the result anywhere in the fsp struct)
2401                  *
2402                  * but I don't know how to deal with the paged results
2403                  * (maybe we can hang the result anywhere in the fsp struct)
2404                  *
2405                  * we don't send all files at once
2406                  * and at the next we should *not* start from the beginning,
2407                  * so we have to cache the result
2408                  *
2409                  * --metze
2410                  */
2411
2412                 /* this works for now... */
2413                 return NT_STATUS_OK;
2414         }
2415
2416         case FSCTL_QUERY_ALLOCATED_RANGES:
2417         {
2418                 /* FIXME: This is just a dummy reply, telling that all of the
2419                  * file is allocated. MKS cp needs that.
2420                  * Adding the real allocated ranges via FIEMAP on Linux
2421                  * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
2422                  * this FSCTL correct for sparse files.
2423                  */
2424                 NTSTATUS status;
2425                 uint64_t offset, length;
2426                 char *out_data_tmp = NULL;
2427
2428                 if (in_len != 16) {
2429                         DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
2430                                 in_len));
2431                         return NT_STATUS_INVALID_PARAMETER;
2432                 }
2433
2434                 if (max_out_len < 16) {
2435                         DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_out_len (%u) < 16 is invalid!\n",
2436                                 max_out_len));
2437                         return NT_STATUS_INVALID_PARAMETER;
2438                 }
2439
2440                 offset = BVAL(in_data,0);
2441                 length = BVAL(in_data,8);
2442
2443                 if (offset + length < offset) {
2444                         /* No 64-bit integer wrap. */
2445                         return NT_STATUS_INVALID_PARAMETER;
2446                 }
2447
2448                 /* Shouldn't this be SMB_VFS_STAT ... ? */
2449                 status = vfs_stat_fsp(fsp);
2450                 if (!NT_STATUS_IS_OK(status)) {
2451                         return status;
2452                 }
2453
2454                 *out_len = 16;
2455                 out_data_tmp = talloc_array(ctx, char, *out_len);
2456                 if (out_data_tmp == NULL) {
2457                         DEBUG(10, ("unable to allocate memory for response\n"));
2458                         return NT_STATUS_NO_MEMORY;
2459                 }
2460
2461                 if (offset > fsp->fsp_name->st.st_ex_size ||
2462                                 fsp->fsp_name->st.st_ex_size == 0 ||
2463                                 length == 0) {
2464                         memset(out_data_tmp, 0, *out_len);
2465                 } else {
2466                         uint64_t end = offset + length;
2467                         end = MIN(end, fsp->fsp_name->st.st_ex_size);
2468                         SBVAL(out_data_tmp, 0, 0);
2469                         SBVAL(out_data_tmp, 8, end);
2470                 }
2471
2472                 *out_data = out_data_tmp;
2473
2474                 return NT_STATUS_OK;
2475         }
2476
2477         case FSCTL_IS_VOLUME_DIRTY:
2478         {
2479                 DEBUG(10,("FSCTL_IS_VOLUME_DIRTY: called on FID[0x%04X] "
2480                           "(but not implemented)\n", fsp->fnum));
2481                 /*
2482                  * http://msdn.microsoft.com/en-us/library/cc232128%28PROT.10%29.aspx
2483                  * says we have to respond with NT_STATUS_INVALID_PARAMETER
2484                  */
2485                 return NT_STATUS_INVALID_PARAMETER;
2486         }
2487
2488         default:
2489                 /*
2490                  * Only print once ... unfortunately there could be lots of
2491                  * different FSCTLs that are called.
2492                  */
2493                 if (!vfswrap_logged_ioctl_message) {
2494                         vfswrap_logged_ioctl_message = true;
2495                         DEBUG(2, ("%s (0x%x): Currently not implemented.\n",
2496                         __FUNCTION__, function));
2497                 }
2498         }
2499
2500         return NT_STATUS_NOT_SUPPORTED;
2501 }
2502
2503 /****************************************************************************
2504  Reply to NT IOCTL
2505 ****************************************************************************/
2506
2507 static void call_nt_transact_ioctl(connection_struct *conn,
2508                                    struct smb_request *req,
2509                                    uint16 **ppsetup, uint32 setup_count,
2510                                    char **ppparams, uint32 parameter_count,
2511                                    char **ppdata, uint32 data_count,
2512                                    uint32 max_data_count)
2513 {
2514         NTSTATUS status;
2515         uint32 function;
2516         uint16 fidnum;
2517         files_struct *fsp;
2518         uint8 isFSctl;
2519         uint8 compfilter;
2520         char *out_data = NULL;
2521         uint32 out_data_len = 0;
2522         char *pdata = *ppdata;
2523         TALLOC_CTX *ctx = talloc_tos();
2524
2525         if (setup_count != 8) {
2526                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2527                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2528                 return;
2529         }
2530
2531         function = IVAL(*ppsetup, 0);
2532         fidnum = SVAL(*ppsetup, 4);
2533         isFSctl = CVAL(*ppsetup, 6);
2534         compfilter = CVAL(*ppsetup, 7);
2535
2536         DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2537                  function, fidnum, isFSctl, compfilter));
2538
2539         fsp=file_fsp(req, fidnum);
2540
2541         /*
2542          * We don't really implement IOCTLs, especially on files.
2543          */
2544         if (!isFSctl) {
2545                 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2546                         isFSctl));
2547                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2548                 return;
2549         }
2550
2551         /* Has to be for an open file! */
2552         if (!check_fsp_open(conn, req, fsp)) {
2553                 return;
2554         }
2555
2556         /*
2557          * out_data might be allocated by the VFS module, but talloc should be
2558          * used, and should be cleaned up when the request ends.
2559          */
2560         status = smb_fsctl(fsp,
2561                                ctx,
2562                                function,
2563                                req->flags2,
2564                                (uint8_t *)pdata,
2565                                data_count,
2566                                (uint8_t **)&out_data,
2567                                max_data_count,
2568                                &out_data_len);
2569         if (!NT_STATUS_IS_OK(status)) {
2570                 reply_nterror(req, status);
2571         } else {
2572                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2573         }
2574 }
2575
2576
2577 #ifdef HAVE_SYS_QUOTAS
2578 /****************************************************************************
2579  Reply to get user quota
2580 ****************************************************************************/
2581
2582 static void call_nt_transact_get_user_quota(connection_struct *conn,
2583                                             struct smb_request *req,
2584                                             uint16 **ppsetup,
2585                                             uint32 setup_count,
2586                                             char **ppparams,
2587                                             uint32 parameter_count,
2588                                             char **ppdata,
2589                                             uint32 data_count,
2590                                             uint32 max_data_count)
2591 {
2592         NTSTATUS nt_status = NT_STATUS_OK;
2593         char *params = *ppparams;
2594         char *pdata = *ppdata;
2595         char *entry;
2596         int data_len=0,param_len=0;
2597         int qt_len=0;
2598         int entry_len = 0;
2599         files_struct *fsp = NULL;
2600         uint16 level = 0;
2601         size_t sid_len;
2602         struct dom_sid sid;
2603         bool start_enum = True;
2604         SMB_NTQUOTA_STRUCT qt;
2605         SMB_NTQUOTA_LIST *tmp_list;
2606         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2607
2608         ZERO_STRUCT(qt);
2609
2610         /* access check */
2611         if (get_current_uid(conn) != 0) {
2612                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2613                          "[%s]\n", lp_servicename(SNUM(conn)),
2614                          conn->session_info->unix_name));
2615                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2616                 return;
2617         }
2618
2619         /*
2620          * Ensure minimum number of parameters sent.
2621          */
2622
2623         if (parameter_count < 4) {
2624                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2625                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2626                 return;
2627         }
2628
2629         /* maybe we can check the quota_fnum */
2630         fsp = file_fsp(req, SVAL(params,0));
2631         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2632                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2633                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2634                 return;
2635         }
2636
2637         /* the NULL pointer checking for fsp->fake_file_handle->pd
2638          * is done by CHECK_NTQUOTA_HANDLE_OK()
2639          */
2640         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2641
2642         level = SVAL(params,2);
2643
2644         /* unknown 12 bytes leading in params */
2645
2646         switch (level) {
2647                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2648                         /* seems that we should continue with the enum here --metze */
2649
2650                         if (qt_handle->quota_list!=NULL &&
2651                             qt_handle->tmp_list==NULL) {
2652
2653                                 /* free the list */
2654                                 free_ntquota_list(&(qt_handle->quota_list));
2655
2656                                 /* Realloc the size of parameters and data we will return */
2657                                 param_len = 4;
2658                                 params = nttrans_realloc(ppparams, param_len);
2659                                 if(params == NULL) {
2660                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2661                                         return;
2662                                 }
2663
2664                                 data_len = 0;
2665                                 SIVAL(params,0,data_len);
2666
2667                                 break;
2668                         }
2669
2670                         start_enum = False;
2671
2672                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2673
2674                         if (qt_handle->quota_list==NULL &&
2675                                 qt_handle->tmp_list==NULL) {
2676                                 start_enum = True;
2677                         }
2678
2679                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2680                                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2681                                 return;
2682                         }
2683
2684                         /* Realloc the size of parameters and data we will return */
2685                         param_len = 4;
2686                         params = nttrans_realloc(ppparams, param_len);
2687                         if(params == NULL) {
2688                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2689                                 return;
2690                         }
2691
2692                         /* we should not trust the value in max_data_count*/
2693                         max_data_count = MIN(max_data_count,2048);
2694
2695                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2696                         if(pdata == NULL) {
2697                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2698                                 return;
2699                         }
2700
2701                         entry = pdata;
2702
2703                         /* set params Size of returned Quota Data 4 bytes*/
2704                         /* but set it later when we know it */
2705
2706                         /* for each entry push the data */
2707
2708                         if (start_enum) {
2709                                 qt_handle->tmp_list = qt_handle->quota_list;
2710                         }
2711
2712                         tmp_list = qt_handle->tmp_list;
2713
2714                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2715                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2716
2717                                 sid_len = ndr_size_dom_sid(
2718                                         &tmp_list->quotas->sid, 0);
2719                                 entry_len = 40 + sid_len;
2720
2721                                 /* nextoffset entry 4 bytes */
2722                                 SIVAL(entry,0,entry_len);
2723
2724                                 /* then the len of the SID 4 bytes */
2725                                 SIVAL(entry,4,sid_len);
2726
2727                                 /* unknown data 8 bytes uint64_t */
2728                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2729
2730                                 /* the used disk space 8 bytes uint64_t */
2731                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2732
2733                                 /* the soft quotas 8 bytes uint64_t */
2734                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2735
2736                                 /* the hard quotas 8 bytes uint64_t */
2737                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2738
2739                                 /* and now the SID */
2740                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2741                         }
2742
2743                         qt_handle->tmp_list = tmp_list;
2744
2745                         /* overwrite the offset of the last entry */
2746                         SIVAL(entry-entry_len,0,0);
2747
2748                         data_len = 4+qt_len;
2749                         /* overwrite the params quota_data_len */
2750                         SIVAL(params,0,data_len);
2751
2752                         break;
2753
2754                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2755
2756                         /* unknown 4 bytes IVAL(pdata,0) */
2757
2758                         if (data_count < 8) {
2759                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2760                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2761                                 return;
2762                         }
2763
2764                         sid_len = IVAL(pdata,4);
2765                         /* Ensure this is less than 1mb. */
2766                         if (sid_len > (1024*1024)) {
2767                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2768                                 return;
2769                         }
2770
2771                         if (data_count < 8+sid_len) {
2772                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2773                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2774                                 return;
2775                         }
2776
2777                         data_len = 4+40+sid_len;
2778
2779                         if (max_data_count < data_len) {
2780                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2781                                         max_data_count, data_len));
2782                                 param_len = 4;
2783                                 SIVAL(params,0,data_len);
2784                                 data_len = 0;
2785                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2786                                 break;
2787                         }
2788
2789                         if (!sid_parse(pdata+8,sid_len,&sid)) {
2790                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2791                                 return;
2792                         }
2793
2794                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2795                                 ZERO_STRUCT(qt);
2796                                 /*
2797                                  * we have to return zero's in all fields
2798                                  * instead of returning an error here
2799                                  * --metze
2800                                  */
2801                         }
2802
2803                         /* Realloc the size of parameters and data we will return */
2804                         param_len = 4;
2805                         params = nttrans_realloc(ppparams, param_len);
2806                         if(params == NULL) {
2807                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2808                                 return;
2809                         }
2810
2811                         pdata = nttrans_realloc(ppdata, data_len);
2812                         if(pdata == NULL) {
2813                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2814                                 return;
2815                         }
2816
2817                         entry = pdata;
2818
2819                         /* set params Size of returned Quota Data 4 bytes*/
2820                         SIVAL(params,0,data_len);
2821
2822                         /* nextoffset entry 4 bytes */
2823                         SIVAL(entry,0,0);
2824
2825                         /* then the len of the SID 4 bytes */
2826                         SIVAL(entry,4,sid_len);
2827
2828                         /* unknown data 8 bytes uint64_t */
2829                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2830
2831                         /* the used disk space 8 bytes uint64_t */
2832                         SBIG_UINT(entry,16,qt.usedspace);
2833
2834                         /* the soft quotas 8 bytes uint64_t */
2835                         SBIG_UINT(entry,24,qt.softlim);
2836
2837                         /* the hard quotas 8 bytes uint64_t */
2838                         SBIG_UINT(entry,32,qt.hardlim);
2839
2840                         /* and now the SID */
2841                         sid_linearize(entry+40, sid_len, &sid);
2842
2843                         break;
2844
2845                 default:
2846                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2847                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2848                         return;
2849                         break;
2850         }
2851
2852         send_nt_replies(conn, req, nt_status, params, param_len,
2853                         pdata, data_len);
2854 }
2855
2856 /****************************************************************************
2857  Reply to set user quota
2858 ****************************************************************************/
2859
2860 static void call_nt_transact_set_user_quota(connection_struct *conn,
2861                                             struct smb_request *req,
2862                                             uint16 **ppsetup,
2863                                             uint32 setup_count,
2864                                             char **ppparams,
2865                                             uint32 parameter_count,
2866                                             char **ppdata,
2867                                             uint32 data_count,
2868                                             uint32 max_data_count)
2869 {
2870         char *params = *ppparams;
2871         char *pdata = *ppdata;
2872         int data_len=0,param_len=0;
2873         SMB_NTQUOTA_STRUCT qt;
2874         size_t sid_len;
2875         struct dom_sid sid;
2876         files_struct *fsp = NULL;
2877
2878         ZERO_STRUCT(qt);
2879
2880         /* access check */
2881         if (get_current_uid(conn) != 0) {
2882                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2883                          "[%s]\n", lp_servicename(SNUM(conn)),
2884                          conn->session_info->unix_name));
2885                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2886                 return;
2887         }
2888
2889         /*
2890          * Ensure minimum number of parameters sent.
2891          */
2892
2893         if (parameter_count < 2) {
2894                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2895                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2896                 return;
2897         }
2898
2899         /* maybe we can check the quota_fnum */
2900         fsp = file_fsp(req, SVAL(params,0));
2901         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2902                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2903                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2904                 return;
2905         }
2906
2907         if (data_count < 40) {
2908                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2909                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2910                 return;
2911         }
2912
2913         /* offset to next quota record.
2914          * 4 bytes IVAL(pdata,0)
2915          * unused here...
2916          */
2917
2918         /* sid len */
2919         sid_len = IVAL(pdata,4);
2920
2921         if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2922                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2923                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2924                 return;
2925         }
2926
2927         /* unknown 8 bytes in pdata
2928          * maybe its the change time in NTTIME
2929          */
2930
2931         /* the used space 8 bytes (uint64_t)*/
2932         qt.usedspace = BVAL(pdata,16);
2933
2934         /* the soft quotas 8 bytes (uint64_t)*/
2935         qt.softlim = BVAL(pdata,24);
2936
2937         /* the hard quotas 8 bytes (uint64_t)*/
2938         qt.hardlim = BVAL(pdata,32);
2939
2940         if (!sid_parse(pdata+40,sid_len,&sid)) {
2941                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2942                 return;
2943         }
2944
2945         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2946
2947         /* 44 unknown bytes left... */
2948
2949         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2950                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2951                 return;
2952         }
2953
2954         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2955                         pdata, data_len);
2956 }
2957 #endif /* HAVE_SYS_QUOTAS */
2958
2959 static void handle_nttrans(connection_struct *conn,
2960                            struct trans_state *state,
2961                            struct smb_request *req)
2962 {
2963         if (get_Protocol() >= PROTOCOL_NT1) {
2964                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2965                 SSVAL(req->inbuf,smb_flg2,req->flags2);
2966         }
2967
2968
2969         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2970
2971         /* Now we must call the relevant NT_TRANS function */
2972         switch(state->call) {
2973                 case NT_TRANSACT_CREATE:
2974                 {
2975                         START_PROFILE(NT_transact_create);
2976                         call_nt_transact_create(
2977                                 conn, req,
2978                                 &state->setup, state->setup_count,
2979                                 &state->param, state->total_param,
2980                                 &state->data, state->total_data,
2981                                 state->max_data_return);
2982                         END_PROFILE(NT_transact_create);
2983                         break;
2984                 }
2985
2986                 case NT_TRANSACT_IOCTL:
2987                 {
2988                         START_PROFILE(NT_transact_ioctl);
2989                         call_nt_transact_ioctl(
2990                                 conn, req,
2991                                 &state->setup, state->setup_count,
2992                                 &state->param, state->total_param,
2993                                 &state->data, state->total_data,
2994                                 state->max_data_return);
2995                         END_PROFILE(NT_transact_ioctl);
2996                         break;
2997                 }
2998
2999                 case NT_TRANSACT_SET_SECURITY_DESC:
3000                 {
3001                         START_PROFILE(NT_transact_set_security_desc);
3002                         call_nt_transact_set_security_desc(
3003                                 conn, req,
3004                                 &state->setup, state->setup_count,
3005                                 &state->param, state->total_param,
3006                                 &state->data, state->total_data,
3007                                 state->max_data_return);
3008                         END_PROFILE(NT_transact_set_security_desc);
3009                         break;
3010                 }
3011
3012                 case NT_TRANSACT_NOTIFY_CHANGE:
3013                 {
3014                         START_PROFILE(NT_transact_notify_change);
3015                         call_nt_transact_notify_change(
3016                                 conn, req,
3017                                 &state->setup, state->setup_count,
3018                                 &state->param, state->total_param,
3019                                 &state->data, state->total_data,
3020                                 state->max_data_return,
3021                                 state->max_param_return);
3022                         END_PROFILE(NT_transact_notify_change);
3023                         break;
3024                 }
3025
3026                 case NT_TRANSACT_RENAME:
3027                 {
3028                         START_PROFILE(NT_transact_rename);
3029                         call_nt_transact_rename(
3030                                 conn, req,
3031                                 &state->setup, state->setup_count,
3032                                 &state->param, state->total_param,
3033                                 &state->data, state->total_data,
3034                                 state->max_data_return);
3035                         END_PROFILE(NT_transact_rename);
3036                         break;
3037                 }
3038
3039                 case NT_TRANSACT_QUERY_SECURITY_DESC:
3040                 {
3041                         START_PROFILE(NT_transact_query_security_desc);
3042                         call_nt_transact_query_security_desc(
3043                                 conn, req,
3044                                 &state->setup, state->setup_count,
3045                                 &state->param, state->total_param,
3046                                 &state->data, state->total_data,
3047                                 state->max_data_return);
3048                         END_PROFILE(NT_transact_query_security_desc);
3049                         break;
3050                 }
3051
3052 #ifdef HAVE_SYS_QUOTAS
3053                 case NT_TRANSACT_GET_USER_QUOTA:
3054                 {
3055                         START_PROFILE(NT_transact_get_user_quota);
3056                         call_nt_transact_get_user_quota(
3057                                 conn, req,
3058                                 &state->setup, state->setup_count,
3059                                 &state->param, state->total_param,
3060                                 &state->data, state->total_data,
3061                                 state->max_data_return);
3062                         END_PROFILE(NT_transact_get_user_quota);
3063                         break;
3064                 }
3065
3066                 case NT_TRANSACT_SET_USER_QUOTA:
3067                 {
3068                         START_PROFILE(NT_transact_set_user_quota);
3069                         call_nt_transact_set_user_quota(
3070                                 conn, req,
3071                                 &state->setup, state->setup_count,
3072                                 &state->param, state->total_param,
3073                                 &state->data, state->total_data,
3074                                 state->max_data_return);
3075                         END_PROFILE(NT_transact_set_user_quota);
3076                         break;
3077                 }
3078 #endif /* HAVE_SYS_QUOTAS */
3079
3080                 default:
3081                         /* Error in request */
3082                         DEBUG(0,("handle_nttrans: Unknown request %d in "
3083                                  "nttrans call\n", state->call));
3084                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
3085                         return;
3086         }
3087         return;
3088 }
3089
3090 /****************************************************************************
3091  Reply to a SMBNTtrans.
3092 ****************************************************************************/
3093
3094 void reply_nttrans(struct smb_request *req)
3095 {
3096         connection_struct *conn = req->conn;
3097         uint32_t pscnt;
3098         uint32_t psoff;
3099         uint32_t dscnt;
3100         uint32_t dsoff;
3101         uint16 function_code;
3102         NTSTATUS result;
3103         struct trans_state *state;
3104
3105         START_PROFILE(SMBnttrans);
3106
3107         if (req->wct < 19) {
3108                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3109                 END_PROFILE(SMBnttrans);
3110                 return;
3111         }
3112
3113         pscnt = IVAL(req->vwv+9, 1);
3114         psoff = IVAL(req->vwv+11, 1);
3115         dscnt = IVAL(req->vwv+13, 1);
3116         dsoff = IVAL(req->vwv+15, 1);
3117         function_code = SVAL(req->vwv+18, 0);
3118
3119         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3120                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3121                 END_PROFILE(SMBnttrans);
3122                 return;
3123         }
3124
3125         result = allow_new_trans(conn->pending_trans, req->mid);
3126         if (!NT_STATUS_IS_OK(result)) {
3127                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3128                 reply_nterror(req, result);
3129                 END_PROFILE(SMBnttrans);
3130                 return;
3131         }
3132
3133         if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
3134                 reply_nterror(req, NT_STATUS_NO_MEMORY);
3135                 END_PROFILE(SMBnttrans);
3136                 return;
3137         }
3138
3139         state->cmd = SMBnttrans;
3140
3141         state->mid = req->mid;
3142         state->vuid = req->vuid;
3143         state->total_data = IVAL(req->vwv+3, 1);
3144         state->data = NULL;
3145         state->total_param = IVAL(req->vwv+1, 1);
3146         state->param = NULL;
3147         state->max_data_return = IVAL(req->vwv+7, 1);
3148         state->max_param_return = IVAL(req->vwv+5, 1);
3149
3150         /* setup count is in *words* */
3151         state->setup_count = 2*CVAL(req->vwv+17, 1);
3152         state->setup = NULL;
3153         state->call = function_code;
3154
3155         DEBUG(10, ("num_setup=%u, "
3156                    "param_total=%u, this_param=%u, max_param=%u, "
3157                    "data_total=%u, this_data=%u, max_data=%u, "
3158                    "param_offset=%u, data_offset=%u\n",
3159                    (unsigned)state->setup_count,
3160                    (unsigned)state->total_param, (unsigned)pscnt,
3161                    (unsigned)state->max_param_return,
3162                    (unsigned)state->total_data, (unsigned)dscnt,
3163                    (unsigned)state->max_data_return,
3164                    (unsigned)psoff, (unsigned)dsoff));
3165
3166         /*
3167          * All nttrans messages we handle have smb_wct == 19 +
3168          * state->setup_count.  Ensure this is so as a sanity check.
3169          */
3170
3171         if(req->wct != 19 + (state->setup_count/2)) {
3172                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3173                          req->wct, 19 + (state->setup_count/2)));
3174                 goto bad_param;
3175         }
3176
3177         /* Don't allow more than 128mb for each value. */
3178         if ((state->total_data > (1024*1024*128)) ||
3179             (state->total_param > (1024*1024*128))) {
3180                 reply_nterror(req, NT_STATUS_NO_MEMORY);
3181                 END_PROFILE(SMBnttrans);
3182                 return;
3183         }
3184
3185         if ((dscnt > state->total_data) || (pscnt > state->total_param))
3186                 goto bad_param;
3187
3188         if (state->total_data)  {
3189
3190                 if (trans_oob(state->total_data, 0, dscnt)
3191                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3192                         goto bad_param;
3193                 }
3194
3195                 /* Can't use talloc here, the core routines do realloc on the
3196                  * params and data. */
3197                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3198                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
3199                                  "bytes !\n", (unsigned int)state->total_data));
3200                         TALLOC_FREE(state);
3201                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3202                         END_PROFILE(SMBnttrans);
3203                         return;
3204                 }
3205
3206                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3207         }
3208
3209         if (state->total_param) {
3210
3211                 if (trans_oob(state->total_param, 0, pscnt)
3212                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3213                         goto bad_param;
3214                 }
3215
3216                 /* Can't use talloc here, the core routines do realloc on the
3217                  * params and data. */
3218                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3219                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
3220                                  "bytes !\n", (unsigned int)state->total_param));
3221                         SAFE_FREE(state->data);
3222                         TALLOC_FREE(state);
3223                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3224                         END_PROFILE(SMBnttrans);
3225                         return;
3226                 }
3227
3228                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3229         }
3230
3231         state->received_data  = dscnt;
3232         state->received_param = pscnt;
3233
3234         if(state->setup_count > 0) {
3235                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3236                           state->setup_count));
3237
3238                 /*
3239                  * No overflow possible here, state->setup_count is an
3240                  * unsigned int, being filled by a single byte from
3241                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
3242                  * below is not necessary, it's here to clarify things. The
3243                  * validity of req->vwv and req->wct has been checked in
3244                  * init_smb_request already.
3245                  */
3246                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3247                         goto bad_param;
3248                 }
3249
3250                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3251                 if (state->setup == NULL) {
3252                         DEBUG(0,("reply_nttrans : Out of memory\n"));
3253                         SAFE_FREE(state->data);
3254                         SAFE_FREE(state->param);
3255                         TALLOC_FREE(state);
3256                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3257                         END_PROFILE(SMBnttrans);
3258                         return;
3259                 }
3260
3261                 memcpy(state->setup, req->vwv+19, state->setup_count);
3262                 dump_data(10, (uint8 *)state->setup, state->setup_count);
3263         }
3264
3265         if ((state->received_data == state->total_data) &&
3266             (state->received_param == state->total_param)) {
3267                 handle_nttrans(conn, state, req);
3268                 SAFE_FREE(state->param);
3269                 SAFE_FREE(state->data);
3270                 TALLOC_FREE(state);
3271                 END_PROFILE(SMBnttrans);
3272                 return;
3273         }
3274
3275         DLIST_ADD(conn->pending_trans, state);
3276
3277         /* We need to send an interim response then receive the rest
3278            of the parameter/data bytes */
3279         reply_outbuf(req, 0, 0);
3280         show_msg((char *)req->outbuf);
3281         END_PROFILE(SMBnttrans);
3282         return;
3283
3284   bad_param:
3285
3286         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3287         SAFE_FREE(state->data);
3288         SAFE_FREE(state->param);
3289         TALLOC_FREE(state);
3290         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3291         END_PROFILE(SMBnttrans);
3292         return;
3293 }
3294
3295 /****************************************************************************
3296  Reply to a SMBnttranss
3297  ****************************************************************************/
3298
3299 void reply_nttranss(struct smb_request *req)
3300 {
3301         connection_struct *conn = req->conn;
3302         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3303         struct trans_state *state;
3304
3305         START_PROFILE(SMBnttranss);
3306
3307         show_msg((char *)req->inbuf);
3308
3309         /* Windows clients expect all replies to
3310            an NT transact secondary (SMBnttranss 0xA1)
3311            to have a command code of NT transact
3312            (SMBnttrans 0xA0). See bug #8989 for details. */
3313         req->cmd = SMBnttrans;
3314
3315         if (req->wct < 18) {
3316                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3317                 END_PROFILE(SMBnttranss);
3318                 return;
3319         }
3320
3321         for (state = conn->pending_trans; state != NULL;
3322              state = state->next) {
3323                 if (state->mid == req->mid) {
3324                         break;
3325                 }
3326         }
3327
3328         if ((state == NULL) || (state->cmd != SMBnttrans)) {
3329                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3330                 END_PROFILE(SMBnttranss);
3331                 return;
3332         }
3333
3334         /* Revise state->total_param and state->total_data in case they have
3335            changed downwards */
3336         if (IVAL(req->vwv+1, 1) < state->total_param) {
3337                 state->total_param = IVAL(req->vwv+1, 1);
3338         }
3339         if (IVAL(req->vwv+3, 1) < state->total_data) {
3340                 state->total_data = IVAL(req->vwv+3, 1);
3341         }
3342
3343         pcnt = IVAL(req->vwv+5, 1);
3344         poff = IVAL(req->vwv+7, 1);
3345         pdisp = IVAL(req->vwv+9, 1);
3346
3347         dcnt = IVAL(req->vwv+11, 1);
3348         doff = IVAL(req->vwv+13, 1);
3349         ddisp = IVAL(req->vwv+15, 1);
3350
3351         state->received_param += pcnt;
3352         state->received_data += dcnt;
3353
3354         if ((state->received_data > state->total_data) ||
3355             (state->received_param > state->total_param))
3356                 goto bad_param;
3357
3358         if (pcnt) {
3359                 if (trans_oob(state->total_param, pdisp, pcnt)
3360                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3361                         goto bad_param;
3362                 }
3363                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3364         }
3365
3366         if (dcnt) {
3367                 if (trans_oob(state->total_data, ddisp, dcnt)
3368                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3369                         goto bad_param;
3370                 }
3371                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3372         }
3373
3374         if ((state->received_param < state->total_param) ||
3375             (state->received_data < state->total_data)) {
3376                 END_PROFILE(SMBnttranss);
3377                 return;
3378         }
3379
3380         handle_nttrans(conn, state, req);
3381
3382         DLIST_REMOVE(conn->pending_trans, state);
3383         SAFE_FREE(state->data);
3384         SAFE_FREE(state->param);
3385         TALLOC_FREE(state);
3386         END_PROFILE(SMBnttranss);
3387         return;
3388
3389   bad_param:
3390
3391         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3392         DLIST_REMOVE(conn->pending_trans, state);
3393         SAFE_FREE(state->data);
3394         SAFE_FREE(state->param);
3395         TALLOC_FREE(state);
3396         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3397         END_PROFILE(SMBnttranss);
3398         return;
3399 }