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 "smbprofile.h"
  31 #include "libsmb/libsmb.h"
  32
  33 extern const struct generic_mapping file_generic_mapping;
  34
  35 static char *nttrans_realloc(char **ptr, size_t size)
  36 {
  37         if (ptr==NULL) {
  38                 smb_panic("nttrans_realloc() called with NULL ptr");
  39         }
  40
  41         *ptr = (char *)SMB_REALLOC(*ptr, size);
  42         if(*ptr == NULL) {
  43                 return NULL;
  44         }
  45         memset(*ptr,'\0',size);
  46         return *ptr;
  47 }
  48
  49 /****************************************************************************
  50  Send the required number of replies back.
  51  We assume all fields other than the data fields are
  52  set correctly for the type of call.
  53  HACK ! Always assumes smb_setup field is zero.
  54 ****************************************************************************/
  55
  56 static void send_nt_replies(connection_struct *conn,
  57                             struct smb_request *req, NTSTATUS nt_error,
  58                             char *params, int paramsize,
  59                             char *pdata, int datasize)
  60 {
  61         int data_to_send = datasize;
  62         int params_to_send = paramsize;
  63         int useable_space;
  64         char *pp = params;
  65         char *pd = pdata;
  66         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  67         int alignment_offset = 1;
  68         int data_alignment_offset = 0;
  69         struct smbd_server_connection *sconn = req->sconn;
  70         int max_send = sconn->smb1.sessions.max_send;
  71
  72         /*
  73          * If there genuinely are no parameters or data to send just send
  74          * the empty packet.
  75          */
  76
  77         if(params_to_send == 0 && data_to_send == 0) {
  78                 reply_outbuf(req, 18, 0);
  79                 if (NT_STATUS_V(nt_error)) {
  80                         error_packet_set((char *)req->outbuf,
  81                                          0, 0, nt_error,
  82                                          __LINE__,__FILE__);
  83                 }
  84                 show_msg((char *)req->outbuf);
  85                 if (!srv_send_smb(sconn,
  86                                 (char *)req->outbuf,
  87                                 true, req->seqnum+1,
  88                                 IS_CONN_ENCRYPTED(conn),
  89                                 &req->pcd)) {
  90                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
  91                 }
  92                 TALLOC_FREE(req->outbuf);
  93                 return;
  94         }
  95
  96         /*
  97          * When sending params and data ensure that both are nicely aligned.
  98          * Only do this alignment when there is also data to send - else
  99          * can cause NT redirector problems.
 100          */
 101
 102         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
 103                 data_alignment_offset = 4 - (params_to_send % 4);
 104         }
 105
 106         /*
 107          * Space is bufsize minus Netbios over TCP header minus SMB header.
 108          * The alignment_offset is to align the param bytes on a four byte
 109          * boundary (2 bytes for data len, one byte pad).
 110          * NT needs this to work correctly.
 111          */
 112
 113         useable_space = max_send - (smb_size
 114                                     + 2 * 18 /* wct */
 115                                     + alignment_offset
 116                                     + data_alignment_offset);
 117
 118         if (useable_space < 0) {
 119                 char *msg = talloc_asprintf(
 120                         talloc_tos(),
 121                         "send_nt_replies failed sanity useable_space = %d!!!",
 122                         useable_space);
 123                 DEBUG(0, ("%s\n", msg));
 124                 exit_server_cleanly(msg);
 125         }
 126
 127         while (params_to_send || data_to_send) {
 128
 129                 /*
 130                  * Calculate whether we will totally or partially fill this packet.
 131                  */
 132
 133                 total_sent_thistime = params_to_send + data_to_send;
 134
 135                 /*
 136                  * We can never send more than useable_space.
 137                  */
 138
 139                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 140
 141                 reply_outbuf(req, 18,
 142                              total_sent_thistime + alignment_offset
 143                              + data_alignment_offset);
 144
 145                 /*
 146                  * We might have had SMBnttranss in req->inbuf, fix that.
 147                  */
 148                 SCVAL(req->outbuf, smb_com, SMBnttrans);
 149
 150                 /*
 151                  * Set total params and data to be sent.
 152                  */
 153
 154                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 155                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 156
 157                 /*
 158                  * Calculate how many parameters and data we can fit into
 159                  * this packet. Parameters get precedence.
 160                  */
 161
 162                 params_sent_thistime = MIN(params_to_send,useable_space);
 163                 data_sent_thistime = useable_space - params_sent_thistime;
 164                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 165
 166                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 167                       params_sent_thistime);
 168
 169                 if(params_sent_thistime == 0) {
 170                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 171                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 172                 } else {
 173                         /*
 174                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 175                          * parameter bytes, however the first 4 bytes of outbuf are
 176                          * the Netbios over TCP header. Thus use smb_base() to subtract
 177                          * them from the calculation.
 178                          */
 179
 180                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 181                               ((smb_buf(req->outbuf)+alignment_offset)
 182                                - smb_base(req->outbuf)));
 183                         /*
 184                          * Absolute displacement of param bytes sent in this packet.
 185                          */
 186
 187                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 188                               pp - params);
 189                 }
 190
 191                 /*
 192                  * Deal with the data portion.
 193                  */
 194
 195                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 196
 197                 if(data_sent_thistime == 0) {
 198                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 199                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 200                 } else {
 201                         /*
 202                          * The offset of the data bytes is the offset of the
 203                          * parameter bytes plus the number of parameters being sent this time.
 204                          */
 205
 206                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 207                               ((smb_buf(req->outbuf)+alignment_offset) -
 208                                smb_base(req->outbuf))
 209                               + params_sent_thistime + data_alignment_offset);
 210                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 211                 }
 212
 213                 /*
 214                  * Copy the param bytes into the packet.
 215                  */
 216
 217                 if(params_sent_thistime) {
 218                         if (alignment_offset != 0) {
 219                                 memset(smb_buf(req->outbuf), 0,
 220                                        alignment_offset);
 221                         }
 222                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 223                                params_sent_thistime);
 224                 }
 225
 226                 /*
 227                  * Copy in the data bytes
 228                  */
 229
 230                 if(data_sent_thistime) {
 231                         if (data_alignment_offset != 0) {
 232                                 memset((smb_buf(req->outbuf)+alignment_offset+
 233                                         params_sent_thistime), 0,
 234                                        data_alignment_offset);
 235                         }
 236                         memcpy(smb_buf(req->outbuf)+alignment_offset
 237                                +params_sent_thistime+data_alignment_offset,
 238                                pd,data_sent_thistime);
 239                 }
 240
 241                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 242                         params_sent_thistime, data_sent_thistime, useable_space));
 243                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 244                         params_to_send, data_to_send, paramsize, datasize));
 245
 246                 if (NT_STATUS_V(nt_error)) {
 247                         error_packet_set((char *)req->outbuf,
 248                                          0, 0, nt_error,
 249                                          __LINE__,__FILE__);
 250                 }
 251
 252                 /* Send the packet */
 253                 show_msg((char *)req->outbuf);
 254                 if (!srv_send_smb(sconn,
 255                                 (char *)req->outbuf,
 256                                 true, req->seqnum+1,
 257                                 IS_CONN_ENCRYPTED(conn),
 258                                 &req->pcd)) {
 259                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 260                 }
 261
 262                 TALLOC_FREE(req->outbuf);
 263
 264                 pp += params_sent_thistime;
 265                 pd += data_sent_thistime;
 266
 267                 params_to_send -= params_sent_thistime;
 268                 data_to_send -= data_sent_thistime;
 269
 270                 /*
 271                  * Sanity check
 272                  */
 273
 274                 if(params_to_send < 0 || data_to_send < 0) {
 275                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 276                                 params_to_send, data_to_send));
 277                         exit_server_cleanly("send_nt_replies: internal error");
 278                 }
 279         }
 280 }
 281
 282 /****************************************************************************
 283  Reply to an NT create and X call on a pipe
 284 ****************************************************************************/
 285
 286 static void nt_open_pipe(char *fname, connection_struct *conn,
 287                          struct smb_request *req, int *ppnum)
 288 {
 289         files_struct *fsp;
 290         NTSTATUS status;
 291
 292         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 293
 294         /* Strip \\ off the name. */
 295         fname++;
 296
 297         status = open_np_file(req, fname, &fsp);
 298         if (!NT_STATUS_IS_OK(status)) {
 299                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 300                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 301                                         ERRDOS, ERRbadpipe);
 302                         return;
 303                 }
 304                 reply_nterror(req, status);
 305                 return;
 306         }
 307
 308         *ppnum = fsp->fnum;
 309         return;
 310 }
 311
 312 /****************************************************************************
 313  Reply to an NT create and X call for pipes.
 314 ****************************************************************************/
 315
 316 static void do_ntcreate_pipe_open(connection_struct *conn,
 317                                   struct smb_request *req)
 318 {
 319         char *fname = NULL;
 320         int pnum = -1;
 321         char *p = NULL;
 322         uint32 flags = IVAL(req->vwv+3, 1);
 323         TALLOC_CTX *ctx = talloc_tos();
 324
 325         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
 326
 327         if (!fname) {
 328                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 329                                 ERRDOS, ERRbadpipe);
 330                 return;
 331         }
 332         nt_open_pipe(fname, conn, req, &pnum);
 333
 334         if (req->outbuf) {
 335                 /* error reply */
 336                 return;
 337         }
 338
 339         /*
 340          * Deal with pipe return.
 341          */
 342
 343         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 344                 /* This is very strange. We
 345                  * return 50 words, but only set
 346                  * the wcnt to 42 ? It's definately
 347                  * what happens on the wire....
 348                  */
 349                 reply_outbuf(req, 50, 0);
 350                 SCVAL(req->outbuf,smb_wct,42);
 351         } else {
 352                 reply_outbuf(req, 34, 0);
 353         }
 354
 355         p = (char *)req->outbuf + smb_vwv2;
 356         p++;
 357         SSVAL(p,0,pnum);
 358         p += 2;
 359         SIVAL(p,0,FILE_WAS_OPENED);
 360         p += 4;
 361         p += 32;
 362         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 363         p += 20;
 364         /* File type. */
 365         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 366         /* Device state. */
 367         SSVAL(p,2, 0x5FF); /* ? */
 368         p += 4;
 369
 370         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 371                 p += 25;
 372                 SIVAL(p,0,FILE_GENERIC_ALL);
 373                 /*
 374                  * For pipes W2K3 seems to return
 375                  * 0x12019B next.
 376                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 377                  */
 378                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 379         }
 380
 381         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 382
 383         chain_reply(req);
 384 }
 385
 386 struct case_semantics_state {
 387         connection_struct *conn;
 388         bool case_sensitive;
 389         bool case_preserve;
 390         bool short_case_preserve;
 391 };
 392
 393 /****************************************************************************
 394  Restore case semantics.
 395 ****************************************************************************/
 396
 397 static int restore_case_semantics(struct case_semantics_state *state)
 398 {
 399         state->conn->case_sensitive = state->case_sensitive;
 400         state->conn->case_preserve = state->case_preserve;
 401         state->conn->short_case_preserve = state->short_case_preserve;
 402         return 0;
 403 }
 404
 405 /****************************************************************************
 406  Save case semantics.
 407 ****************************************************************************/
 408
 409 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 410                                                 connection_struct *conn)
 411 {
 412         struct case_semantics_state *result;
 413
 414         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 415                 return NULL;
 416         }
 417
 418         result->conn = conn;
 419         result->case_sensitive = conn->case_sensitive;
 420         result->case_preserve = conn->case_preserve;
 421         result->short_case_preserve = conn->short_case_preserve;
 422
 423         /* Set to POSIX. */
 424         conn->case_sensitive = True;
 425         conn->case_preserve = True;
 426         conn->short_case_preserve = True;
 427
 428         talloc_set_destructor(result, restore_case_semantics);
 429
 430         return result;
 431 }
 432
 433 /****************************************************************************
 434  Reply to an NT create and X call.
 435 ****************************************************************************/
 436
 437 void reply_ntcreate_and_X(struct smb_request *req)
 438 {
 439         connection_struct *conn = req->conn;
 440         struct smb_filename *smb_fname = NULL;
 441         char *fname = NULL;
 442         uint32 flags;
 443         uint32 access_mask;
 444         uint32 file_attributes;
 445         uint32 share_access;
 446         uint32 create_disposition;
 447         uint32 create_options;
 448         uint16 root_dir_fid;
 449         uint64_t allocation_size;
 450         /* Breakout the oplock request bits so we can set the
 451            reply bits separately. */
 452         uint32 fattr=0;
 453         SMB_OFF_T file_len = 0;
 454         int info = 0;
 455         files_struct *fsp = NULL;
 456         char *p = NULL;
 457         struct timespec create_timespec;
 458         struct timespec c_timespec;
 459         struct timespec a_timespec;
 460         struct timespec m_timespec;
 461         struct timespec write_time_ts;
 462         NTSTATUS status;
 463         int oplock_request;
 464         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 465         struct case_semantics_state *case_state = NULL;
 466         TALLOC_CTX *ctx = talloc_tos();
 467
 468         START_PROFILE(SMBntcreateX);
 469
 470         if (req->wct < 24) {
 471                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 472                 goto out;
 473         }
 474
 475         flags = IVAL(req->vwv+3, 1);
 476         access_mask = IVAL(req->vwv+7, 1);
 477         file_attributes = IVAL(req->vwv+13, 1);
 478         share_access = IVAL(req->vwv+15, 1);
 479         create_disposition = IVAL(req->vwv+17, 1);
 480         create_options = IVAL(req->vwv+19, 1);
 481         root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
 482
 483         allocation_size = BVAL(req->vwv+9, 1);
 484
 485         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 486                             STR_TERMINATE, &status);
 487
 488         if (!NT_STATUS_IS_OK(status)) {
 489                 reply_nterror(req, status);
 490                 goto out;
 491         }
 492
 493         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 494                   "file_attributes = 0x%x, share_access = 0x%x, "
 495                   "create_disposition = 0x%x create_options = 0x%x "
 496                   "root_dir_fid = 0x%x, fname = %s\n",
 497                         (unsigned int)flags,
 498                         (unsigned int)access_mask,
 499                         (unsigned int)file_attributes,
 500                         (unsigned int)share_access,
 501                         (unsigned int)create_disposition,
 502                         (unsigned int)create_options,
 503                         (unsigned int)root_dir_fid,
 504                         fname));
 505
 506         /*
 507          * we need to remove ignored bits when they come directly from the client
 508          * because we reuse some of them for internal stuff
 509          */
 510         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 511
 512         /*
 513          * If it's an IPC, use the pipe handler.
 514          */
 515
 516         if (IS_IPC(conn)) {
 517                 if (lp_nt_pipe_support()) {
 518                         do_ntcreate_pipe_open(conn, req);
 519                         goto out;
 520                 }
 521                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 522                 goto out;
 523         }
 524
 525         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 526         if (oplock_request) {
 527                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 528                         ? BATCH_OPLOCK : 0;
 529         }
 530
 531         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 532                 case_state = set_posix_case_semantics(ctx, conn);
 533                 if (!case_state) {
 534                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 535                         goto out;
 536                 }
 537         }
 538
 539         status = filename_convert(ctx,
 540                                 conn,
 541                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 542                                 fname,
 543                                 0,
 544                                 NULL,
 545                                 &smb_fname);
 546
 547         TALLOC_FREE(case_state);
 548
 549         if (!NT_STATUS_IS_OK(status)) {
 550                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 551                         reply_botherror(req,
 552                                 NT_STATUS_PATH_NOT_COVERED,
 553                                 ERRSRV, ERRbadpath);
 554                         goto out;
 555                 }
 556                 reply_nterror(req, status);
 557                 goto out;
 558         }
 559
 560         /*
 561          * Bug #6898 - clients using Windows opens should
 562          * never be able to set this attribute into the
 563          * VFS.
 564          */
 565         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 566
 567         status = SMB_VFS_CREATE_FILE(
 568                 conn,                                   /* conn */
 569                 req,                                    /* req */
 570                 root_dir_fid,                           /* root_dir_fid */
 571                 smb_fname,                              /* fname */
 572                 access_mask,                            /* access_mask */
 573                 share_access,                           /* share_access */
 574                 create_disposition,                     /* create_disposition*/
 575                 create_options,                         /* create_options */
 576                 file_attributes,                        /* file_attributes */
 577                 oplock_request,                         /* oplock_request */
 578                 allocation_size,                        /* allocation_size */
 579                 0,                                      /* private_flags */
 580                 NULL,                                   /* sd */
 581                 NULL,                                   /* ea_list */
 582                 &fsp,                                   /* result */
 583                 &info);                                 /* pinfo */
 584
 585         if (!NT_STATUS_IS_OK(status)) {
 586                 if (open_was_deferred(req->sconn, req->mid)) {
 587                         /* We have re-scheduled this call, no error. */
 588                         goto out;
 589                 }
 590                 reply_openerror(req, status);
 591                 goto out;
 592         }
 593
 594         /* Ensure we're pointing at the correct stat struct. */
 595         TALLOC_FREE(smb_fname);
 596         smb_fname = fsp->fsp_name;
 597
 598         /*
 599          * If the caller set the extended oplock request bit
 600          * and we granted one (by whatever means) - set the
 601          * correct bit for extended oplock reply.
 602          */
 603
 604         if (oplock_request &&
 605             (lp_fake_oplocks(SNUM(conn))
 606              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 607
 608                 /*
 609                  * Exclusive oplock granted
 610                  */
 611
 612                 if (flags & REQUEST_BATCH_OPLOCK) {
 613                         oplock_granted = BATCH_OPLOCK_RETURN;
 614                 } else {
 615                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 616                 }
 617         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 618                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 619         } else {
 620                 oplock_granted = NO_OPLOCK_RETURN;
 621         }
 622
 623         file_len = smb_fname->st.st_ex_size;
 624
 625         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 626                 /* This is very strange. We
 627                  * return 50 words, but only set
 628                  * the wcnt to 42 ? It's definately
 629                  * what happens on the wire....
 630                  */
 631                 reply_outbuf(req, 50, 0);
 632                 SCVAL(req->outbuf,smb_wct,42);
 633         } else {
 634                 reply_outbuf(req, 34, 0);
 635         }
 636
 637         p = (char *)req->outbuf + smb_vwv2;
 638
 639         SCVAL(p, 0, oplock_granted);
 640
 641         p++;
 642         SSVAL(p,0,fsp->fnum);
 643         p += 2;
 644         if ((create_disposition == FILE_SUPERSEDE)
 645             && (info == FILE_WAS_OVERWRITTEN)) {
 646                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 647         } else {
 648                 SIVAL(p,0,info);
 649         }
 650         p += 4;
 651
 652         fattr = dos_mode(conn, smb_fname);
 653         if (fattr == 0) {
 654                 fattr = FILE_ATTRIBUTE_NORMAL;
 655         }
 656
 657         /* Deal with other possible opens having a modified
 658            write time. JRA. */
 659         ZERO_STRUCT(write_time_ts);
 660         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
 661         if (!null_timespec(write_time_ts)) {
 662                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
 663         }
 664
 665         /* Create time. */
 666         create_timespec = get_create_timespec(conn, fsp, smb_fname);
 667         a_timespec = smb_fname->st.st_ex_atime;
 668         m_timespec = smb_fname->st.st_ex_mtime;
 669         c_timespec = get_change_timespec(conn, fsp, smb_fname);
 670
 671         if (lp_dos_filetime_resolution(SNUM(conn))) {
 672                 dos_filetime_timespec(&create_timespec);
 673                 dos_filetime_timespec(&a_timespec);
 674                 dos_filetime_timespec(&m_timespec);
 675                 dos_filetime_timespec(&c_timespec);
 676         }
 677
 678         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
 679         p += 8;
 680         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
 681         p += 8;
 682         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
 683         p += 8;
 684         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
 685         p += 8;
 686         SIVAL(p,0,fattr); /* File Attributes. */
 687         p += 4;
 688         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 689         p += 8;
 690         SOFF_T(p,0,file_len);
 691         p += 8;
 692         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 693                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
 694                 size_t num_names = 0;
 695                 unsigned int num_streams = 0;
 696                 struct stream_struct *streams = NULL;
 697
 698                 /* Do we have any EA's ? */
 699                 status = get_ea_names_from_file(ctx, conn, fsp,
 700                                 smb_fname->base_name, NULL, &num_names);
 701                 if (NT_STATUS_IS_OK(status) && num_names) {
 702                         file_status &= ~NO_EAS;
 703                 }
 704                 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
 705                         &num_streams, &streams);
 706                 /* There is always one stream, ::$DATA. */
 707                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
 708                         file_status &= ~NO_SUBSTREAMS;
 709                 }
 710                 TALLOC_FREE(streams);
 711                 SSVAL(p,2,file_status);
 712         }
 713         p += 4;
 714         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 715
 716         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 717                 uint32 perms = 0;
 718                 p += 25;
 719                 if (fsp->is_directory ||
 720                     can_write_to_file(conn, smb_fname)) {
 721                         perms = FILE_GENERIC_ALL;
 722                 } else {
 723                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 724                 }
 725                 SIVAL(p,0,perms);
 726         }
 727
 728         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
 729                 fsp->fnum, smb_fname_str_dbg(smb_fname)));
 730
 731         chain_reply(req);
 732  out:
 733         END_PROFILE(SMBntcreateX);
 734         return;
 735 }
 736
 737 /****************************************************************************
 738  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 739 ****************************************************************************/
 740
 741 static void do_nt_transact_create_pipe(connection_struct *conn,
 742                                        struct smb_request *req,
 743                                        uint16 **ppsetup, uint32 setup_count,
 744                                        char **ppparams, uint32 parameter_count,
 745                                        char **ppdata, uint32 data_count)
 746 {
 747         char *fname = NULL;
 748         char *params = *ppparams;
 749         int pnum = -1;
 750         char *p = NULL;
 751         NTSTATUS status;
 752         size_t param_len;
 753         uint32 flags;
 754         TALLOC_CTX *ctx = talloc_tos();
 755
 756         /*
 757          * Ensure minimum number of parameters sent.
 758          */
 759
 760         if(parameter_count < 54) {
 761                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 762                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 763                 return;
 764         }
 765
 766         flags = IVAL(params,0);
 767
 768         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
 769                         parameter_count-53, STR_TERMINATE,
 770                         &status);
 771         if (!NT_STATUS_IS_OK(status)) {
 772                 reply_nterror(req, status);
 773                 return;
 774         }
 775
 776         nt_open_pipe(fname, conn, req, &pnum);
 777
 778         if (req->outbuf) {
 779                 /* Error return */
 780                 return;
 781         }
 782
 783         /* Realloc the size of parameters and data we will return */
 784         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 785                 /* Extended response is 32 more byyes. */
 786                 param_len = 101;
 787         } else {
 788                 param_len = 69;
 789         }
 790         params = nttrans_realloc(ppparams, param_len);
 791         if(params == NULL) {
 792                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 793                 return;
 794         }
 795
 796         p = params;
 797         SCVAL(p,0,NO_OPLOCK_RETURN);
 798
 799         p += 2;
 800         SSVAL(p,0,pnum);
 801         p += 2;
 802         SIVAL(p,0,FILE_WAS_OPENED);
 803         p += 8;
 804
 805         p += 32;
 806         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 807         p += 20;
 808         /* File type. */
 809         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 810         /* Device state. */
 811         SSVAL(p,2, 0x5FF); /* ? */
 812         p += 4;
 813
 814         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 815                 p += 25;
 816                 SIVAL(p,0,FILE_GENERIC_ALL);
 817                 /*
 818                  * For pipes W2K3 seems to return
 819                  * 0x12019B next.
 820                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 821                  */
 822                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 823         }
 824
 825         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 826
 827         /* Send the required number of replies */
 828         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 829
 830         return;
 831 }
 832
 833 /****************************************************************************
 834  Internal fn to set security descriptors.
 835 ****************************************************************************/
 836
 837 NTSTATUS set_sd(files_struct *fsp, uint8_t *data, uint32_t sd_len,
 838                        uint32_t security_info_sent)
 839 {
 840         struct security_descriptor *psd = NULL;
 841         NTSTATUS status;
 842
 843         if (sd_len == 0) {
 844                 return NT_STATUS_INVALID_PARAMETER;
 845         }
 846
 847         if (!CAN_WRITE(fsp->conn)) {
 848                 return NT_STATUS_ACCESS_DENIED;
 849         }
 850
 851         if (!lp_nt_acl_support(SNUM(fsp->conn))) {
 852                 return NT_STATUS_OK;
 853         }
 854
 855         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 856
 857         if (!NT_STATUS_IS_OK(status)) {
 858                 return status;
 859         }
 860
 861         if (psd->owner_sid == NULL) {
 862                 security_info_sent &= ~SECINFO_OWNER;
 863         }
 864         if (psd->group_sid == NULL) {
 865                 security_info_sent &= ~SECINFO_GROUP;
 866         }
 867
 868         /* Ensure we have at least one thing set. */
 869         if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
 870                 if (security_info_sent & SECINFO_LABEL) {
 871                         /* Only consider SECINFO_LABEL if no other
 872                            bits are set. Just like W2K3 we don't
 873                            store this. */
 874                         return NT_STATUS_OK;
 875                 }
 876                 return NT_STATUS_INVALID_PARAMETER;
 877         }
 878
 879         /* Ensure we have the rights to do this. */
 880         if (security_info_sent & SECINFO_OWNER) {
 881                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 882                         return NT_STATUS_ACCESS_DENIED;
 883                 }
 884         }
 885
 886         if (security_info_sent & SECINFO_GROUP) {
 887                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 888                         return NT_STATUS_ACCESS_DENIED;
 889                 }
 890         }
 891
 892         if (security_info_sent & SECINFO_DACL) {
 893                 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
 894                         return NT_STATUS_ACCESS_DENIED;
 895                 }
 896                 /* Convert all the generic bits. */
 897                 if (psd->dacl) {
 898                         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 899                 }
 900         }
 901
 902         if (security_info_sent & SECINFO_SACL) {
 903                 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
 904                         return NT_STATUS_ACCESS_DENIED;
 905                 }
 906                 /* Convert all the generic bits. */
 907                 if (psd->sacl) {
 908                         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 909                 }
 910         }
 911
 912         if (DEBUGLEVEL >= 10) {
 913                 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
 914                 NDR_PRINT_DEBUG(security_descriptor, psd);
 915         }
 916
 917         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 918
 919         TALLOC_FREE(psd);
 920
 921         return status;
 922 }
 923
 924 /****************************************************************************
 925  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
 926 ****************************************************************************/
 927
 928 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
 929 {
 930         struct ea_list *ea_list_head = NULL;
 931         size_t offset = 0;
 932
 933         if (data_size < 4) {
 934                 return NULL;
 935         }
 936
 937         while (offset + 4 <= data_size) {
 938                 size_t next_offset = IVAL(pdata,offset);
 939                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
 940
 941                 if (!eal) {
 942                         return NULL;
 943                 }
 944
 945                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
 946                 if (next_offset == 0) {
 947                         break;
 948                 }
 949                 offset += next_offset;
 950         }
 951
 952         return ea_list_head;
 953 }
 954
 955 /****************************************************************************
 956  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
 957 ****************************************************************************/
 958
 959 static void call_nt_transact_create(connection_struct *conn,
 960                                     struct smb_request *req,
 961                                     uint16 **ppsetup, uint32 setup_count,
 962                                     char **ppparams, uint32 parameter_count,
 963                                     char **ppdata, uint32 data_count,
 964                                     uint32 max_data_count)
 965 {
 966         struct smb_filename *smb_fname = NULL;
 967         char *fname = NULL;
 968         char *params = *ppparams;
 969         char *data = *ppdata;
 970         /* Breakout the oplock request bits so we can set the reply bits separately. */
 971         uint32 fattr=0;
 972         SMB_OFF_T file_len = 0;
 973         int info = 0;
 974         files_struct *fsp = NULL;
 975         char *p = NULL;
 976         uint32 flags;
 977         uint32 access_mask;
 978         uint32 file_attributes;
 979         uint32 share_access;
 980         uint32 create_disposition;
 981         uint32 create_options;
 982         uint32 sd_len;
 983         struct security_descriptor *sd = NULL;
 984         uint32 ea_len;
 985         uint16 root_dir_fid;
 986         struct timespec create_timespec;
 987         struct timespec c_timespec;
 988         struct timespec a_timespec;
 989         struct timespec m_timespec;
 990         struct timespec write_time_ts;
 991         struct ea_list *ea_list = NULL;
 992         NTSTATUS status;
 993         size_t param_len;
 994         uint64_t allocation_size;
 995         int oplock_request;
 996         uint8_t oplock_granted;
 997         struct case_semantics_state *case_state = NULL;
 998         TALLOC_CTX *ctx = talloc_tos();
 999
1000         DEBUG(5,("call_nt_transact_create\n"));
1001
1002         /*
1003          * If it's an IPC, use the pipe handler.
1004          */
1005
1006         if (IS_IPC(conn)) {
1007                 if (lp_nt_pipe_support()) {
1008                         do_nt_transact_create_pipe(
1009                                 conn, req,
1010                                 ppsetup, setup_count,
1011                                 ppparams, parameter_count,
1012                                 ppdata, data_count);
1013                         goto out;
1014                 }
1015                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1016                 goto out;
1017         }
1018
1019         /*
1020          * Ensure minimum number of parameters sent.
1021          */
1022
1023         if(parameter_count < 54) {
1024                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1025                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1026                 goto out;
1027         }
1028
1029         flags = IVAL(params,0);
1030         access_mask = IVAL(params,8);
1031         file_attributes = IVAL(params,20);
1032         share_access = IVAL(params,24);
1033         create_disposition = IVAL(params,28);
1034         create_options = IVAL(params,32);
1035         sd_len = IVAL(params,36);
1036         ea_len = IVAL(params,40);
1037         root_dir_fid = (uint16)IVAL(params,4);
1038         allocation_size = BVAL(params,12);
1039
1040         /*
1041          * we need to remove ignored bits when they come directly from the client
1042          * because we reuse some of them for internal stuff
1043          */
1044         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1045
1046         /* Ensure the data_len is correct for the sd and ea values given. */
1047         if ((ea_len + sd_len > data_count)
1048             || (ea_len > data_count) || (sd_len > data_count)
1049             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1050                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1051                            "%u, data_count = %u\n", (unsigned int)ea_len,
1052                            (unsigned int)sd_len, (unsigned int)data_count));
1053                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1054                 goto out;
1055         }
1056
1057         if (sd_len) {
1058                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1059                            sd_len));
1060
1061                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1062                                              &sd);
1063                 if (!NT_STATUS_IS_OK(status)) {
1064                         DEBUG(10, ("call_nt_transact_create: "
1065                                    "unmarshall_sec_desc failed: %s\n",
1066                                    nt_errstr(status)));
1067                         reply_nterror(req, status);
1068                         goto out;
1069                 }
1070         }
1071
1072         if (ea_len) {
1073                 if (!lp_ea_support(SNUM(conn))) {
1074                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1075                                    "EA's not supported.\n",
1076                                    (unsigned int)ea_len));
1077                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1078                         goto out;
1079                 }
1080
1081                 if (ea_len < 10) {
1082                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1083                                   "too small (should be more than 10)\n",
1084                                   (unsigned int)ea_len ));
1085                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1086                         goto out;
1087                 }
1088
1089                 /* We have already checked that ea_len <= data_count here. */
1090                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1091                                                ea_len);
1092                 if (ea_list == NULL) {
1093                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1094                         goto out;
1095                 }
1096         }
1097
1098         srvstr_get_path(ctx, params, req->flags2, &fname,
1099                         params+53, parameter_count-53,
1100                         STR_TERMINATE, &status);
1101         if (!NT_STATUS_IS_OK(status)) {
1102                 reply_nterror(req, status);
1103                 goto out;
1104         }
1105
1106         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1107                 case_state = set_posix_case_semantics(ctx, conn);
1108                 if (!case_state) {
1109                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1110                         goto out;
1111                 }
1112         }
1113
1114         status = filename_convert(ctx,
1115                                 conn,
1116                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1117                                 fname,
1118                                 0,
1119                                 NULL,
1120                                 &smb_fname);
1121
1122         TALLOC_FREE(case_state);
1123
1124         if (!NT_STATUS_IS_OK(status)) {
1125                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1126                         reply_botherror(req,
1127                                 NT_STATUS_PATH_NOT_COVERED,
1128                                 ERRSRV, ERRbadpath);
1129                         goto out;
1130                 }
1131                 reply_nterror(req, status);
1132                 goto out;
1133         }
1134
1135         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1136         if (oplock_request) {
1137                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1138                         ? BATCH_OPLOCK : 0;
1139         }
1140
1141         /*
1142          * Bug #6898 - clients using Windows opens should
1143          * never be able to set this attribute into the
1144          * VFS.
1145          */
1146         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1147
1148         status = SMB_VFS_CREATE_FILE(
1149                 conn,                                   /* conn */
1150                 req,                                    /* req */
1151                 root_dir_fid,                           /* root_dir_fid */
1152                 smb_fname,                              /* fname */
1153                 access_mask,                            /* access_mask */
1154                 share_access,                           /* share_access */
1155                 create_disposition,                     /* create_disposition*/
1156                 create_options,                         /* create_options */
1157                 file_attributes,                        /* file_attributes */
1158                 oplock_request,                         /* oplock_request */
1159                 allocation_size,                        /* allocation_size */
1160                 0,                                      /* private_flags */
1161                 sd,                                     /* sd */
1162                 ea_list,                                /* ea_list */
1163                 &fsp,                                   /* result */
1164                 &info);                                 /* pinfo */
1165
1166         if(!NT_STATUS_IS_OK(status)) {
1167                 if (open_was_deferred(req->sconn, req->mid)) {
1168                         /* We have re-scheduled this call, no error. */
1169                         return;
1170                 }
1171                 reply_openerror(req, status);
1172                 goto out;
1173         }
1174
1175         /* Ensure we're pointing at the correct stat struct. */
1176         TALLOC_FREE(smb_fname);
1177         smb_fname = fsp->fsp_name;
1178
1179         /*
1180          * If the caller set the extended oplock request bit
1181          * and we granted one (by whatever means) - set the
1182          * correct bit for extended oplock reply.
1183          */
1184
1185         if (oplock_request &&
1186             (lp_fake_oplocks(SNUM(conn))
1187              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1188
1189                 /*
1190                  * Exclusive oplock granted
1191                  */
1192
1193                 if (flags & REQUEST_BATCH_OPLOCK) {
1194                         oplock_granted = BATCH_OPLOCK_RETURN;
1195                 } else {
1196                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1197                 }
1198         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1199                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1200         } else {
1201                 oplock_granted = NO_OPLOCK_RETURN;
1202         }
1203
1204         file_len = smb_fname->st.st_ex_size;
1205
1206         /* Realloc the size of parameters and data we will return */
1207         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1208                 /* Extended response is 32 more byyes. */
1209                 param_len = 101;
1210         } else {
1211                 param_len = 69;
1212         }
1213         params = nttrans_realloc(ppparams, param_len);
1214         if(params == NULL) {
1215                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1216                 goto out;
1217         }
1218
1219         p = params;
1220         SCVAL(p, 0, oplock_granted);
1221
1222         p += 2;
1223         SSVAL(p,0,fsp->fnum);
1224         p += 2;
1225         if ((create_disposition == FILE_SUPERSEDE)
1226             && (info == FILE_WAS_OVERWRITTEN)) {
1227                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1228         } else {
1229                 SIVAL(p,0,info);
1230         }
1231         p += 8;
1232
1233         fattr = dos_mode(conn, smb_fname);
1234         if (fattr == 0) {
1235                 fattr = FILE_ATTRIBUTE_NORMAL;
1236         }
1237
1238         /* Deal with other possible opens having a modified
1239            write time. JRA. */
1240         ZERO_STRUCT(write_time_ts);
1241         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1242         if (!null_timespec(write_time_ts)) {
1243                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1244         }
1245
1246         /* Create time. */
1247         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1248         a_timespec = smb_fname->st.st_ex_atime;
1249         m_timespec = smb_fname->st.st_ex_mtime;
1250         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1251
1252         if (lp_dos_filetime_resolution(SNUM(conn))) {
1253                 dos_filetime_timespec(&create_timespec);
1254                 dos_filetime_timespec(&a_timespec);
1255                 dos_filetime_timespec(&m_timespec);
1256                 dos_filetime_timespec(&c_timespec);
1257         }
1258
1259         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1260         p += 8;
1261         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1262         p += 8;
1263         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1264         p += 8;
1265         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1266         p += 8;
1267         SIVAL(p,0,fattr); /* File Attributes. */
1268         p += 4;
1269         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1270         p += 8;
1271         SOFF_T(p,0,file_len);
1272         p += 8;
1273         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1274                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1275                 size_t num_names = 0;
1276                 unsigned int num_streams = 0;
1277                 struct stream_struct *streams = NULL;
1278
1279                 /* Do we have any EA's ? */
1280                 status = get_ea_names_from_file(ctx, conn, fsp,
1281                                 smb_fname->base_name, NULL, &num_names);
1282                 if (NT_STATUS_IS_OK(status) && num_names) {
1283                         file_status &= ~NO_EAS;
1284                 }
1285                 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
1286                         &num_streams, &streams);
1287                 /* There is always one stream, ::$DATA. */
1288                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1289                         file_status &= ~NO_SUBSTREAMS;
1290                 }
1291                 TALLOC_FREE(streams);
1292                 SSVAL(p,2,file_status);
1293         }
1294         p += 4;
1295         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1296
1297         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1298                 uint32 perms = 0;
1299                 p += 25;
1300                 if (fsp->is_directory ||
1301                     can_write_to_file(conn, smb_fname)) {
1302                         perms = FILE_GENERIC_ALL;
1303                 } else {
1304                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1305                 }
1306                 SIVAL(p,0,perms);
1307         }
1308
1309         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1310                  smb_fname_str_dbg(smb_fname)));
1311
1312         /* Send the required number of replies */
1313         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1314  out:
1315         return;
1316 }
1317
1318 /****************************************************************************
1319  Reply to a NT CANCEL request.
1320  conn POINTER CAN BE NULL HERE !
1321 ****************************************************************************/
1322
1323 void reply_ntcancel(struct smb_request *req)
1324 {
1325         /*
1326          * Go through and cancel any pending change notifies.
1327          */
1328
1329         START_PROFILE(SMBntcancel);
1330         srv_cancel_sign_response(req->sconn);
1331         remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1332         remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1333
1334         DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1335                 (unsigned long long)req->mid));
1336
1337         END_PROFILE(SMBntcancel);
1338         return;
1339 }
1340
1341 /****************************************************************************
1342  Copy a file.
1343 ****************************************************************************/
1344
1345 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1346                                 connection_struct *conn,
1347                                 struct smb_request *req,
1348                                 struct smb_filename *smb_fname_src,
1349                                 struct smb_filename *smb_fname_dst,
1350                                 uint32 attrs)
1351 {
1352         files_struct *fsp1,*fsp2;
1353         uint32 fattr;
1354         int info;
1355         SMB_OFF_T ret=-1;
1356         NTSTATUS status = NT_STATUS_OK;
1357         char *parent;
1358
1359         if (!CAN_WRITE(conn)) {
1360                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1361                 goto out;
1362         }
1363
1364         /* Source must already exist. */
1365         if (!VALID_STAT(smb_fname_src->st)) {
1366                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1367                 goto out;
1368         }
1369
1370         /* Ensure attributes match. */
1371         fattr = dos_mode(conn, smb_fname_src);
1372         if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1373                 status = NT_STATUS_NO_SUCH_FILE;
1374                 goto out;
1375         }
1376
1377         /* Disallow if dst file already exists. */
1378         if (VALID_STAT(smb_fname_dst->st)) {
1379                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1380                 goto out;
1381         }
1382
1383         /* No links from a directory. */
1384         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1385                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1386                 goto out;
1387         }
1388
1389         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1390                   smb_fname_str_dbg(smb_fname_src),
1391                   smb_fname_str_dbg(smb_fname_dst)));
1392
1393         status = SMB_VFS_CREATE_FILE(
1394                 conn,                                   /* conn */
1395                 req,                                    /* req */
1396                 0,                                      /* root_dir_fid */
1397                 smb_fname_src,                          /* fname */
1398                 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1399                         FILE_READ_EA,                   /* access_mask */
1400                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1401                     FILE_SHARE_DELETE),
1402                 FILE_OPEN,                              /* create_disposition*/
1403                 0,                                      /* create_options */
1404                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1405                 NO_OPLOCK,                              /* oplock_request */
1406                 0,                                      /* allocation_size */
1407                 0,                                      /* private_flags */
1408                 NULL,                                   /* sd */
1409                 NULL,                                   /* ea_list */
1410                 &fsp1,                                  /* result */
1411                 &info);                                 /* pinfo */
1412
1413         if (!NT_STATUS_IS_OK(status)) {
1414                 goto out;
1415         }
1416
1417         status = SMB_VFS_CREATE_FILE(
1418                 conn,                                   /* conn */
1419                 req,                                    /* req */
1420                 0,                                      /* root_dir_fid */
1421                 smb_fname_dst,                          /* fname */
1422                 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1423                         FILE_WRITE_EA,                  /* access_mask */
1424                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1425                     FILE_SHARE_DELETE),
1426                 FILE_CREATE,                            /* create_disposition*/
1427                 0,                                      /* create_options */
1428                 fattr,                                  /* file_attributes */
1429                 NO_OPLOCK,                              /* oplock_request */
1430                 0,                                      /* allocation_size */
1431                 0,                                      /* private_flags */
1432                 NULL,                                   /* sd */
1433                 NULL,                                   /* ea_list */
1434                 &fsp2,                                  /* result */
1435                 &info);                                 /* pinfo */
1436
1437         if (!NT_STATUS_IS_OK(status)) {
1438                 close_file(NULL, fsp1, ERROR_CLOSE);
1439                 goto out;
1440         }
1441
1442         if (smb_fname_src->st.st_ex_size) {
1443                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1444         }
1445
1446         /*
1447          * As we are opening fsp1 read-only we only expect
1448          * an error on close on fsp2 if we are out of space.
1449          * Thus we don't look at the error return from the
1450          * close of fsp1.
1451          */
1452         close_file(NULL, fsp1, NORMAL_CLOSE);
1453
1454         /* Ensure the modtime is set correctly on the destination file. */
1455         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1456
1457         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1458
1459         /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1460            creates the file. This isn't the correct thing to do in the copy
1461            case. JRA */
1462         if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1463                             NULL)) {
1464                 status = NT_STATUS_NO_MEMORY;
1465                 goto out;
1466         }
1467         file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1468         TALLOC_FREE(parent);
1469
1470         if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1471                 status = NT_STATUS_DISK_FULL;
1472                 goto out;
1473         }
1474  out:
1475         if (!NT_STATUS_IS_OK(status)) {
1476                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1477                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1478                         smb_fname_str_dbg(smb_fname_dst)));
1479         }
1480
1481         return status;
1482 }
1483
1484 /****************************************************************************
1485  Reply to a NT rename request.
1486 ****************************************************************************/
1487
1488 void reply_ntrename(struct smb_request *req)
1489 {
1490         connection_struct *conn = req->conn;
1491         struct smb_filename *smb_fname_old = NULL;
1492         struct smb_filename *smb_fname_new = NULL;
1493         char *oldname = NULL;
1494         char *newname = NULL;
1495         const char *p;
1496         NTSTATUS status;
1497         bool src_has_wcard = False;
1498         bool dest_has_wcard = False;
1499         uint32 attrs;
1500         uint32_t ucf_flags_src = 0;
1501         uint32_t ucf_flags_dst = 0;
1502         uint16 rename_type;
1503         TALLOC_CTX *ctx = talloc_tos();
1504         bool stream_rename = false;
1505
1506         START_PROFILE(SMBntrename);
1507
1508         if (req->wct < 4) {
1509                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1510                 goto out;
1511         }
1512
1513         attrs = SVAL(req->vwv+0, 0);
1514         rename_type = SVAL(req->vwv+1, 0);
1515
1516         p = (const char *)req->buf + 1;
1517         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1518                                        &status, &src_has_wcard);
1519         if (!NT_STATUS_IS_OK(status)) {
1520                 reply_nterror(req, status);
1521                 goto out;
1522         }
1523
1524         if (ms_has_wild(oldname)) {
1525                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1526                 goto out;
1527         }
1528
1529         p++;
1530         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1531                                        &status, &dest_has_wcard);
1532         if (!NT_STATUS_IS_OK(status)) {
1533                 reply_nterror(req, status);
1534                 goto out;
1535         }
1536
1537         if (!lp_posix_pathnames()) {
1538                 /* The newname must begin with a ':' if the
1539                    oldname contains a ':'. */
1540                 if (strchr_m(oldname, ':')) {
1541                         if (newname[0] != ':') {
1542                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1543                                 goto out;
1544                         }
1545                         stream_rename = true;
1546                 }
1547         }
1548
1549         /*
1550          * If this is a rename operation, allow wildcards and save the
1551          * destination's last component.
1552          */
1553         if (rename_type == RENAME_FLAG_RENAME) {
1554                 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1555                 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1556         }
1557
1558         /* rename_internals() calls unix_convert(), so don't call it here. */
1559         status = filename_convert(ctx, conn,
1560                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1561                                   oldname,
1562                                   ucf_flags_src,
1563                                   NULL,
1564                                   &smb_fname_old);
1565         if (!NT_STATUS_IS_OK(status)) {
1566                 if (NT_STATUS_EQUAL(status,
1567                                     NT_STATUS_PATH_NOT_COVERED)) {
1568                         reply_botherror(req,
1569                                         NT_STATUS_PATH_NOT_COVERED,
1570                                         ERRSRV, ERRbadpath);
1571                         goto out;
1572                 }
1573                 reply_nterror(req, status);
1574                 goto out;
1575         }
1576
1577         status = filename_convert(ctx, conn,
1578                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1579                                   newname,
1580                                   ucf_flags_dst,
1581                                   &dest_has_wcard,
1582                                   &smb_fname_new);
1583         if (!NT_STATUS_IS_OK(status)) {
1584                 if (NT_STATUS_EQUAL(status,
1585                                     NT_STATUS_PATH_NOT_COVERED)) {
1586                         reply_botherror(req,
1587                                         NT_STATUS_PATH_NOT_COVERED,
1588                                         ERRSRV, ERRbadpath);
1589                         goto out;
1590                 }
1591                 reply_nterror(req, status);
1592                 goto out;
1593         }
1594
1595         if (stream_rename) {
1596                 /* smb_fname_new must be the same as smb_fname_old. */
1597                 TALLOC_FREE(smb_fname_new->base_name);
1598                 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1599                                                 smb_fname_old->base_name);
1600                 if (!smb_fname_new->base_name) {
1601                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1602                         goto out;
1603                 }
1604         }
1605
1606         DEBUG(3,("reply_ntrename: %s -> %s\n",
1607                  smb_fname_str_dbg(smb_fname_old),
1608                  smb_fname_str_dbg(smb_fname_new)));
1609
1610         switch(rename_type) {
1611                 case RENAME_FLAG_RENAME:
1612                         status = rename_internals(ctx, conn, req,
1613                                                   smb_fname_old, smb_fname_new,
1614                                                   attrs, False, src_has_wcard,
1615                                                   dest_has_wcard,
1616                                                   DELETE_ACCESS);
1617                         break;
1618                 case RENAME_FLAG_HARD_LINK:
1619                         if (src_has_wcard || dest_has_wcard) {
1620                                 /* No wildcards. */
1621                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1622                         } else {
1623                                 status = hardlink_internals(ctx, conn,
1624                                                             req,
1625                                                             false,
1626                                                             smb_fname_old,
1627                                                             smb_fname_new);
1628                         }
1629                         break;
1630                 case RENAME_FLAG_COPY:
1631                         if (src_has_wcard || dest_has_wcard) {
1632                                 /* No wildcards. */
1633                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1634                         } else {
1635                                 status = copy_internals(ctx, conn, req,
1636                                                         smb_fname_old,
1637                                                         smb_fname_new,
1638                                                         attrs);
1639                         }
1640                         break;
1641                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1642                         status = NT_STATUS_INVALID_PARAMETER;
1643                         break;
1644                 default:
1645                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1646                         break;
1647         }
1648
1649         if (!NT_STATUS_IS_OK(status)) {
1650                 if (open_was_deferred(req->sconn, req->mid)) {
1651                         /* We have re-scheduled this call. */
1652                         goto out;
1653                 }
1654
1655                 reply_nterror(req, status);
1656                 goto out;
1657         }
1658
1659         reply_outbuf(req, 0, 0);
1660  out:
1661         END_PROFILE(SMBntrename);
1662         return;
1663 }
1664
1665 /****************************************************************************
1666  Reply to a notify change - queue the request and
1667  don't allow a directory to be opened.
1668 ****************************************************************************/
1669
1670 static void smbd_smb1_notify_reply(struct smb_request *req,
1671                                    NTSTATUS error_code,
1672                                    uint8_t *buf, size_t len)
1673 {
1674         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1675 }
1676
1677 static void call_nt_transact_notify_change(connection_struct *conn,
1678                                            struct smb_request *req,
1679                                            uint16 **ppsetup,
1680                                            uint32 setup_count,
1681                                            char **ppparams,
1682                                            uint32 parameter_count,
1683                                            char **ppdata, uint32 data_count,
1684                                            uint32 max_data_count,
1685                                            uint32 max_param_count)
1686 {
1687         uint16 *setup = *ppsetup;
1688         files_struct *fsp;
1689         uint32 filter;
1690         NTSTATUS status;
1691         bool recursive;
1692
1693         if(setup_count < 6) {
1694                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1695                 return;
1696         }
1697
1698         fsp = file_fsp(req, SVAL(setup,4));
1699         filter = IVAL(setup, 0);
1700         recursive = (SVAL(setup, 6) != 0) ? True : False;
1701
1702         DEBUG(3,("call_nt_transact_notify_change\n"));
1703
1704         if(!fsp) {
1705                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1706                 return;
1707         }
1708
1709         {
1710                 char *filter_string;
1711
1712                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1713                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1714                         return;
1715                 }
1716
1717                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1718                          "called on %s, filter = %s, recursive = %d\n",
1719                          fsp_str_dbg(fsp), filter_string, recursive));
1720
1721                 TALLOC_FREE(filter_string);
1722         }
1723
1724         if((!fsp->is_directory) || (conn != fsp->conn)) {
1725                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1726                 return;
1727         }
1728
1729         if (fsp->notify == NULL) {
1730
1731                 status = change_notify_create(fsp, filter, recursive);
1732
1733                 if (!NT_STATUS_IS_OK(status)) {
1734                         DEBUG(10, ("change_notify_create returned %s\n",
1735                                    nt_errstr(status)));
1736                         reply_nterror(req, status);
1737                         return;
1738                 }
1739         }
1740
1741         if (fsp->notify->num_changes != 0) {
1742
1743                 /*
1744                  * We've got changes pending, respond immediately
1745                  */
1746
1747                 /*
1748                  * TODO: write a torture test to check the filtering behaviour
1749                  * here.
1750                  */
1751
1752                 change_notify_reply(req,
1753                                     NT_STATUS_OK,
1754                                     max_param_count,
1755                                     fsp->notify,
1756                                     smbd_smb1_notify_reply);
1757
1758                 /*
1759                  * change_notify_reply() above has independently sent its
1760                  * results
1761                  */
1762                 return;
1763         }
1764
1765         /*
1766          * No changes pending, queue the request
1767          */
1768
1769         status = change_notify_add_request(req,
1770                         max_param_count,
1771                         filter,
1772                         recursive, fsp,
1773                         smbd_smb1_notify_reply);
1774         if (!NT_STATUS_IS_OK(status)) {
1775                 reply_nterror(req, status);
1776         }
1777         return;
1778 }
1779
1780 /****************************************************************************
1781  Reply to an NT transact rename command.
1782 ****************************************************************************/
1783
1784 static void call_nt_transact_rename(connection_struct *conn,
1785                                     struct smb_request *req,
1786                                     uint16 **ppsetup, uint32 setup_count,
1787                                     char **ppparams, uint32 parameter_count,
1788                                     char **ppdata, uint32 data_count,
1789                                     uint32 max_data_count)
1790 {
1791         char *params = *ppparams;
1792         char *new_name = NULL;
1793         files_struct *fsp = NULL;
1794         bool dest_has_wcard = False;
1795         NTSTATUS status;
1796         TALLOC_CTX *ctx = talloc_tos();
1797
1798         if(parameter_count < 5) {
1799                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1800                 return;
1801         }
1802
1803         fsp = file_fsp(req, SVAL(params, 0));
1804         if (!check_fsp(conn, req, fsp)) {
1805                 return;
1806         }
1807         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1808                               parameter_count - 4,
1809                               STR_TERMINATE, &status, &dest_has_wcard);
1810         if (!NT_STATUS_IS_OK(status)) {
1811                 reply_nterror(req, status);
1812                 return;
1813         }
1814
1815         /*
1816          * W2K3 ignores this request as the RAW-RENAME test
1817          * demonstrates, so we do.
1818          */
1819         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1820
1821         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1822                  fsp_str_dbg(fsp), new_name));
1823
1824         return;
1825 }
1826
1827 /******************************************************************************
1828  Fake up a completely empty SD.
1829 *******************************************************************************/
1830
1831 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1832 {
1833         size_t sd_size;
1834
1835         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1836         if(!*ppsd) {
1837                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1838                 return NT_STATUS_NO_MEMORY;
1839         }
1840
1841         return NT_STATUS_OK;
1842 }
1843
1844 /****************************************************************************
1845  Reply to query a security descriptor.
1846  Callable from SMB2 and SMB2.
1847  If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1848  the required size.
1849 ****************************************************************************/
1850
1851 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1852                                         TALLOC_CTX *mem_ctx,
1853                                         files_struct *fsp,
1854                                         uint32_t security_info_wanted,
1855                                         uint32_t max_data_count,
1856                                         uint8_t **ppmarshalled_sd,
1857                                         size_t *psd_size)
1858 {
1859         NTSTATUS status;
1860         struct security_descriptor *psd = NULL;
1861
1862         /*
1863          * Get the permissions to return.
1864          */
1865
1866         if ((security_info_wanted & SECINFO_SACL) &&
1867                         !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1868                 return NT_STATUS_ACCESS_DENIED;
1869         }
1870
1871         if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1872                         !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1873                 return NT_STATUS_ACCESS_DENIED;
1874         }
1875
1876         if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1877                         SECINFO_GROUP|SECINFO_SACL)) {
1878                 /* Don't return SECINFO_LABEL if anything else was
1879                    requested. See bug #8458. */
1880                 security_info_wanted &= ~SECINFO_LABEL;
1881         }
1882
1883         if (!lp_nt_acl_support(SNUM(conn))) {
1884                 status = get_null_nt_acl(mem_ctx, &psd);
1885         } else if (security_info_wanted & SECINFO_LABEL) {
1886                 /* Like W2K3 return a null object. */
1887                 status = get_null_nt_acl(mem_ctx, &psd);
1888         } else {
1889                 status = SMB_VFS_FGET_NT_ACL(
1890                         fsp, security_info_wanted, &psd);
1891         }
1892         if (!NT_STATUS_IS_OK(status)) {
1893                 return status;
1894         }
1895
1896         if (!(security_info_wanted & SECINFO_OWNER)) {
1897                 psd->owner_sid = NULL;
1898         }
1899         if (!(security_info_wanted & SECINFO_GROUP)) {
1900                 psd->group_sid = NULL;
1901         }
1902         if (!(security_info_wanted & SECINFO_DACL)) {
1903                 psd->dacl = NULL;
1904         }
1905         if (!(security_info_wanted & SECINFO_SACL)) {
1906                 psd->sacl = NULL;
1907         }
1908
1909         /* If the SACL/DACL is NULL, but was requested, we mark that it is
1910          * present in the reply to match Windows behavior */
1911         if (psd->sacl == NULL &&
1912             security_info_wanted & SECINFO_SACL)
1913                 psd->type |= SEC_DESC_SACL_PRESENT;
1914         if (psd->dacl == NULL &&
1915             security_info_wanted & SECINFO_DACL)
1916                 psd->type |= SEC_DESC_DACL_PRESENT;
1917
1918         if (security_info_wanted & SECINFO_LABEL) {
1919                 /* Like W2K3 return a null object. */
1920                 psd->owner_sid = NULL;
1921                 psd->group_sid = NULL;
1922                 psd->dacl = NULL;
1923                 psd->sacl = NULL;
1924                 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
1925         }
1926
1927         *psd_size = ndr_size_security_descriptor(psd, 0);
1928
1929         DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1930                 (unsigned long)*psd_size));
1931
1932         if (DEBUGLEVEL >= 10) {
1933                 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1934                           fsp_str_dbg(fsp)));
1935                 NDR_PRINT_DEBUG(security_descriptor, psd);
1936         }
1937
1938         if (max_data_count < *psd_size) {
1939                 TALLOC_FREE(psd);
1940                 return NT_STATUS_BUFFER_TOO_SMALL;
1941         }
1942
1943         status = marshall_sec_desc(mem_ctx, psd,
1944                                    ppmarshalled_sd, psd_size);
1945
1946         if (!NT_STATUS_IS_OK(status)) {
1947                 TALLOC_FREE(psd);
1948                 return status;
1949         }
1950
1951         TALLOC_FREE(psd);
1952         return NT_STATUS_OK;
1953 }
1954
1955 /****************************************************************************
1956  SMB1 reply to query a security descriptor.
1957 ****************************************************************************/
1958
1959 static void call_nt_transact_query_security_desc(connection_struct *conn,
1960                                                  struct smb_request *req,
1961                                                  uint16 **ppsetup,
1962                                                  uint32 setup_count,
1963                                                  char **ppparams,
1964                                                  uint32 parameter_count,
1965                                                  char **ppdata,
1966                                                  uint32 data_count,
1967                                                  uint32 max_data_count)
1968 {
1969         char *params = *ppparams;
1970         char *data = *ppdata;
1971         size_t sd_size = 0;
1972         uint32 security_info_wanted;
1973         files_struct *fsp = NULL;
1974         NTSTATUS status;
1975         uint8_t *marshalled_sd = NULL;
1976
1977         if(parameter_count < 8) {
1978                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1979                 return;
1980         }
1981
1982         fsp = file_fsp(req, SVAL(params,0));
1983         if(!fsp) {
1984                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1985                 return;
1986         }
1987
1988         security_info_wanted = IVAL(params,4);
1989
1990         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1991                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1992                  (unsigned int)security_info_wanted));
1993
1994         params = nttrans_realloc(ppparams, 4);
1995         if(params == NULL) {
1996                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1997                 return;
1998         }
1999
2000         /*
2001          * Get the permissions to return.
2002          */
2003
2004         status = smbd_do_query_security_desc(conn,
2005                                         talloc_tos(),
2006                                         fsp,
2007                                         security_info_wanted,
2008                                         max_data_count,
2009                                         &marshalled_sd,
2010                                         &sd_size);
2011
2012         if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2013                 SIVAL(params,0,(uint32_t)sd_size);
2014                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2015                         params, 4, NULL, 0);
2016                 return;
2017         }
2018
2019         if (!NT_STATUS_IS_OK(status)) {
2020                 reply_nterror(req, status);
2021                 return;
2022         }
2023
2024         SMB_ASSERT(sd_size > 0);
2025
2026         SIVAL(params,0,(uint32_t)sd_size);
2027
2028         if (max_data_count < sd_size) {
2029                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2030                                 params, 4, NULL, 0);
2031                 return;
2032         }
2033
2034         /*
2035          * Allocate the data we will return.
2036          */
2037
2038         data = nttrans_realloc(ppdata, sd_size);
2039         if(data == NULL) {
2040                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2041                 return;
2042         }
2043
2044         memcpy(data, marshalled_sd, sd_size);
2045
2046         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2047
2048         return;
2049 }
2050
2051 /****************************************************************************
2052  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2053 ****************************************************************************/
2054
2055 static void call_nt_transact_set_security_desc(connection_struct *conn,
2056                                                struct smb_request *req,
2057                                                uint16 **ppsetup,
2058                                                uint32 setup_count,
2059                                                char **ppparams,
2060                                                uint32 parameter_count,
2061                                                char **ppdata,
2062                                                uint32 data_count,
2063                                                uint32 max_data_count)
2064 {
2065         char *params= *ppparams;
2066         char *data = *ppdata;
2067         files_struct *fsp = NULL;
2068         uint32 security_info_sent = 0;
2069         NTSTATUS status;
2070
2071         if(parameter_count < 8) {
2072                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2073                 return;
2074         }
2075
2076         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2077                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2078                 return;
2079         }
2080
2081         if (!CAN_WRITE(fsp->conn)) {
2082                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2083                 return;
2084         }
2085
2086         if(!lp_nt_acl_support(SNUM(conn))) {
2087                 goto done;
2088         }
2089
2090         security_info_sent = IVAL(params,4);
2091
2092         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2093                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2094
2095         if (data_count == 0) {
2096                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2097                 return;
2098         }
2099
2100         status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
2101
2102         if (!NT_STATUS_IS_OK(status)) {
2103                 reply_nterror(req, status);
2104                 return;
2105         }
2106
2107   done:
2108         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2109         return;
2110 }
2111
2112 /****************************************************************************
2113  Reply to NT IOCTL
2114 ****************************************************************************/
2115
2116 static void call_nt_transact_ioctl(connection_struct *conn,
2117                                    struct smb_request *req,
2118                                    uint16 **ppsetup, uint32 setup_count,
2119                                    char **ppparams, uint32 parameter_count,
2120                                    char **ppdata, uint32 data_count,
2121                                    uint32 max_data_count)
2122 {
2123         NTSTATUS status;
2124         uint32 function;
2125         uint16 fidnum;
2126         files_struct *fsp;
2127         uint8 isFSctl;
2128         uint8 compfilter;
2129         char *out_data = NULL;
2130         uint32 out_data_len = 0;
2131         char *pdata = *ppdata;
2132         TALLOC_CTX *ctx = talloc_tos();
2133
2134         if (setup_count != 8) {
2135                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2136                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2137                 return;
2138         }
2139
2140         function = IVAL(*ppsetup, 0);
2141         fidnum = SVAL(*ppsetup, 4);
2142         isFSctl = CVAL(*ppsetup, 6);
2143         compfilter = CVAL(*ppsetup, 7);
2144
2145         DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2146                  function, fidnum, isFSctl, compfilter));
2147
2148         fsp=file_fsp(req, fidnum);
2149
2150         /*
2151          * We don't really implement IOCTLs, especially on files.
2152          */
2153         if (!isFSctl) {
2154                 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2155                         isFSctl));
2156                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2157                 return;
2158         }
2159
2160         /* Has to be for an open file! */
2161         if (!check_fsp_open(conn, req, fsp)) {
2162                 return;
2163         }
2164
2165         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2166
2167         /*
2168          * out_data might be allocated by the VFS module, but talloc should be
2169          * used, and should be cleaned up when the request ends.
2170          */
2171         status = SMB_VFS_FSCTL(fsp,
2172                                ctx,
2173                                function,
2174                                req->flags2,
2175                                (uint8_t *)pdata,
2176                                data_count,
2177                                (uint8_t **)&out_data,
2178                                max_data_count,
2179                                &out_data_len);
2180         if (!NT_STATUS_IS_OK(status)) {
2181                 reply_nterror(req, status);
2182         } else {
2183                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2184         }
2185 }
2186
2187
2188 #ifdef HAVE_SYS_QUOTAS
2189 /****************************************************************************
2190  Reply to get user quota
2191 ****************************************************************************/
2192
2193 static void call_nt_transact_get_user_quota(connection_struct *conn,
2194                                             struct smb_request *req,
2195                                             uint16 **ppsetup,
2196                                             uint32 setup_count,
2197                                             char **ppparams,
2198                                             uint32 parameter_count,
2199                                             char **ppdata,
2200                                             uint32 data_count,
2201                                             uint32 max_data_count)
2202 {
2203         NTSTATUS nt_status = NT_STATUS_OK;
2204         char *params = *ppparams;
2205         char *pdata = *ppdata;
2206         char *entry;
2207         int data_len=0,param_len=0;
2208         int qt_len=0;
2209         int entry_len = 0;
2210         files_struct *fsp = NULL;
2211         uint16 level = 0;
2212         size_t sid_len;
2213         struct dom_sid sid;
2214         bool start_enum = True;
2215         SMB_NTQUOTA_STRUCT qt;
2216         SMB_NTQUOTA_LIST *tmp_list;
2217         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2218
2219         ZERO_STRUCT(qt);
2220
2221         /* access check */
2222         if (get_current_uid(conn) != 0) {
2223                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2224                          "[%s]\n", lp_servicename(SNUM(conn)),
2225                          conn->session_info->unix_info->unix_name));
2226                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2227                 return;
2228         }
2229
2230         /*
2231          * Ensure minimum number of parameters sent.
2232          */
2233
2234         if (parameter_count < 4) {
2235                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2236                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2237                 return;
2238         }
2239
2240         /* maybe we can check the quota_fnum */
2241         fsp = file_fsp(req, SVAL(params,0));
2242         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2243                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2244                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2245                 return;
2246         }
2247
2248         /* the NULL pointer checking for fsp->fake_file_handle->pd
2249          * is done by CHECK_NTQUOTA_HANDLE_OK()
2250          */
2251         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2252
2253         level = SVAL(params,2);
2254
2255         /* unknown 12 bytes leading in params */
2256
2257         switch (level) {
2258                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2259                         /* seems that we should continue with the enum here --metze */
2260
2261                         if (qt_handle->quota_list!=NULL &&
2262                             qt_handle->tmp_list==NULL) {
2263
2264                                 /* free the list */
2265                                 free_ntquota_list(&(qt_handle->quota_list));
2266
2267                                 /* Realloc the size of parameters and data we will return */
2268                                 param_len = 4;
2269                                 params = nttrans_realloc(ppparams, param_len);
2270                                 if(params == NULL) {
2271                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2272                                         return;
2273                                 }
2274
2275                                 data_len = 0;
2276                                 SIVAL(params,0,data_len);
2277
2278                                 break;
2279                         }
2280
2281                         start_enum = False;
2282
2283                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2284
2285                         if (qt_handle->quota_list==NULL &&
2286                                 qt_handle->tmp_list==NULL) {
2287                                 start_enum = True;
2288                         }
2289
2290                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2291                                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2292                                 return;
2293                         }
2294
2295                         /* Realloc the size of parameters and data we will return */
2296                         param_len = 4;
2297                         params = nttrans_realloc(ppparams, param_len);
2298                         if(params == NULL) {
2299                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2300                                 return;
2301                         }
2302
2303                         /* we should not trust the value in max_data_count*/
2304                         max_data_count = MIN(max_data_count,2048);
2305
2306                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2307                         if(pdata == NULL) {
2308                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2309                                 return;
2310                         }
2311
2312                         entry = pdata;
2313
2314                         /* set params Size of returned Quota Data 4 bytes*/
2315                         /* but set it later when we know it */
2316
2317                         /* for each entry push the data */
2318
2319                         if (start_enum) {
2320                                 qt_handle->tmp_list = qt_handle->quota_list;
2321                         }
2322
2323                         tmp_list = qt_handle->tmp_list;
2324
2325                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2326                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2327
2328                                 sid_len = ndr_size_dom_sid(
2329                                         &tmp_list->quotas->sid, 0);
2330                                 entry_len = 40 + sid_len;
2331
2332                                 /* nextoffset entry 4 bytes */
2333                                 SIVAL(entry,0,entry_len);
2334
2335                                 /* then the len of the SID 4 bytes */
2336                                 SIVAL(entry,4,sid_len);
2337
2338                                 /* unknown data 8 bytes uint64_t */
2339                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2340
2341                                 /* the used disk space 8 bytes uint64_t */
2342                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2343
2344                                 /* the soft quotas 8 bytes uint64_t */
2345                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2346
2347                                 /* the hard quotas 8 bytes uint64_t */
2348                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2349
2350                                 /* and now the SID */
2351                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2352                         }
2353
2354                         qt_handle->tmp_list = tmp_list;
2355
2356                         /* overwrite the offset of the last entry */
2357                         SIVAL(entry-entry_len,0,0);
2358
2359                         data_len = 4+qt_len;
2360                         /* overwrite the params quota_data_len */
2361                         SIVAL(params,0,data_len);
2362
2363                         break;
2364
2365                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2366
2367                         /* unknown 4 bytes IVAL(pdata,0) */
2368
2369                         if (data_count < 8) {
2370                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2371                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2372                                 return;
2373                         }
2374
2375                         sid_len = IVAL(pdata,4);
2376                         /* Ensure this is less than 1mb. */
2377                         if (sid_len > (1024*1024)) {
2378                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2379                                 return;
2380                         }
2381
2382                         if (data_count < 8+sid_len) {
2383                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2384                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2385                                 return;
2386                         }
2387
2388                         data_len = 4+40+sid_len;
2389
2390                         if (max_data_count < data_len) {
2391                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2392                                         max_data_count, data_len));
2393                                 param_len = 4;
2394                                 SIVAL(params,0,data_len);
2395                                 data_len = 0;
2396                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2397                                 break;
2398                         }
2399
2400                         if (!sid_parse(pdata+8,sid_len,&sid)) {
2401                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2402                                 return;
2403                         }
2404
2405                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2406                                 ZERO_STRUCT(qt);
2407                                 /*
2408                                  * we have to return zero's in all fields
2409                                  * instead of returning an error here
2410                                  * --metze
2411                                  */
2412                         }
2413
2414                         /* Realloc the size of parameters and data we will return */
2415                         param_len = 4;
2416                         params = nttrans_realloc(ppparams, param_len);
2417                         if(params == NULL) {
2418                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2419                                 return;
2420                         }
2421
2422                         pdata = nttrans_realloc(ppdata, data_len);
2423                         if(pdata == NULL) {
2424                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2425                                 return;
2426                         }
2427
2428                         entry = pdata;
2429
2430                         /* set params Size of returned Quota Data 4 bytes*/
2431                         SIVAL(params,0,data_len);
2432
2433                         /* nextoffset entry 4 bytes */
2434                         SIVAL(entry,0,0);
2435
2436                         /* then the len of the SID 4 bytes */
2437                         SIVAL(entry,4,sid_len);
2438
2439                         /* unknown data 8 bytes uint64_t */
2440                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2441
2442                         /* the used disk space 8 bytes uint64_t */
2443                         SBIG_UINT(entry,16,qt.usedspace);
2444
2445                         /* the soft quotas 8 bytes uint64_t */
2446                         SBIG_UINT(entry,24,qt.softlim);
2447
2448                         /* the hard quotas 8 bytes uint64_t */
2449                         SBIG_UINT(entry,32,qt.hardlim);
2450
2451                         /* and now the SID */
2452                         sid_linearize(entry+40, sid_len, &sid);
2453
2454                         break;
2455
2456                 default:
2457                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2458                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2459                         return;
2460                         break;
2461         }
2462
2463         send_nt_replies(conn, req, nt_status, params, param_len,
2464                         pdata, data_len);
2465 }
2466
2467 /****************************************************************************
2468  Reply to set user quota
2469 ****************************************************************************/
2470
2471 static void call_nt_transact_set_user_quota(connection_struct *conn,
2472                                             struct smb_request *req,
2473                                             uint16 **ppsetup,
2474                                             uint32 setup_count,
2475                                             char **ppparams,
2476                                             uint32 parameter_count,
2477                                             char **ppdata,
2478                                             uint32 data_count,
2479                                             uint32 max_data_count)
2480 {
2481         char *params = *ppparams;
2482         char *pdata = *ppdata;
2483         int data_len=0,param_len=0;
2484         SMB_NTQUOTA_STRUCT qt;
2485         size_t sid_len;
2486         struct dom_sid sid;
2487         files_struct *fsp = NULL;
2488
2489         ZERO_STRUCT(qt);
2490
2491         /* access check */
2492         if (get_current_uid(conn) != 0) {
2493                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2494                          "[%s]\n", lp_servicename(SNUM(conn)),
2495                          conn->session_info->unix_info->unix_name));
2496                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2497                 return;
2498         }
2499
2500         /*
2501          * Ensure minimum number of parameters sent.
2502          */
2503
2504         if (parameter_count < 2) {
2505                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2506                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2507                 return;
2508         }
2509
2510         /* maybe we can check the quota_fnum */
2511         fsp = file_fsp(req, SVAL(params,0));
2512         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2513                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2514                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2515                 return;
2516         }
2517
2518         if (data_count < 40) {
2519                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2520                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2521                 return;
2522         }
2523
2524         /* offset to next quota record.
2525          * 4 bytes IVAL(pdata,0)
2526          * unused here...
2527          */
2528
2529         /* sid len */
2530         sid_len = IVAL(pdata,4);
2531
2532         if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2533                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2534                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2535                 return;
2536         }
2537
2538         /* unknown 8 bytes in pdata
2539          * maybe its the change time in NTTIME
2540          */
2541
2542         /* the used space 8 bytes (uint64_t)*/
2543         qt.usedspace = BVAL(pdata,16);
2544
2545         /* the soft quotas 8 bytes (uint64_t)*/
2546         qt.softlim = BVAL(pdata,24);
2547
2548         /* the hard quotas 8 bytes (uint64_t)*/
2549         qt.hardlim = BVAL(pdata,32);
2550
2551         if (!sid_parse(pdata+40,sid_len,&sid)) {
2552                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2553                 return;
2554         }
2555
2556         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2557
2558         /* 44 unknown bytes left... */
2559
2560         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2561                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2562                 return;
2563         }
2564
2565         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2566                         pdata, data_len);
2567 }
2568 #endif /* HAVE_SYS_QUOTAS */
2569
2570 static void handle_nttrans(connection_struct *conn,
2571                            struct trans_state *state,
2572                            struct smb_request *req)
2573 {
2574         if (get_Protocol() >= PROTOCOL_NT1) {
2575                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2576                 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2577         }
2578
2579
2580         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2581
2582         /* Now we must call the relevant NT_TRANS function */
2583         switch(state->call) {
2584                 case NT_TRANSACT_CREATE:
2585                 {
2586                         START_PROFILE(NT_transact_create);
2587                         call_nt_transact_create(
2588                                 conn, req,
2589                                 &state->setup, state->setup_count,
2590                                 &state->param, state->total_param,
2591                                 &state->data, state->total_data,
2592                                 state->max_data_return);
2593                         END_PROFILE(NT_transact_create);
2594                         break;
2595                 }
2596
2597                 case NT_TRANSACT_IOCTL:
2598                 {
2599                         START_PROFILE(NT_transact_ioctl);
2600                         call_nt_transact_ioctl(
2601                                 conn, req,
2602                                 &state->setup, state->setup_count,
2603                                 &state->param, state->total_param,
2604                                 &state->data, state->total_data,
2605                                 state->max_data_return);
2606                         END_PROFILE(NT_transact_ioctl);
2607                         break;
2608                 }
2609
2610                 case NT_TRANSACT_SET_SECURITY_DESC:
2611                 {
2612                         START_PROFILE(NT_transact_set_security_desc);
2613                         call_nt_transact_set_security_desc(
2614                                 conn, req,
2615                                 &state->setup, state->setup_count,
2616                                 &state->param, state->total_param,
2617                                 &state->data, state->total_data,
2618                                 state->max_data_return);
2619                         END_PROFILE(NT_transact_set_security_desc);
2620                         break;
2621                 }
2622
2623                 case NT_TRANSACT_NOTIFY_CHANGE:
2624                 {
2625                         START_PROFILE(NT_transact_notify_change);
2626                         call_nt_transact_notify_change(
2627                                 conn, req,
2628                                 &state->setup, state->setup_count,
2629                                 &state->param, state->total_param,
2630                                 &state->data, state->total_data,
2631                                 state->max_data_return,
2632                                 state->max_param_return);
2633                         END_PROFILE(NT_transact_notify_change);
2634                         break;
2635                 }
2636
2637                 case NT_TRANSACT_RENAME:
2638                 {
2639                         START_PROFILE(NT_transact_rename);
2640                         call_nt_transact_rename(
2641                                 conn, req,
2642                                 &state->setup, state->setup_count,
2643                                 &state->param, state->total_param,
2644                                 &state->data, state->total_data,
2645                                 state->max_data_return);
2646                         END_PROFILE(NT_transact_rename);
2647                         break;
2648                 }
2649
2650                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2651                 {
2652                         START_PROFILE(NT_transact_query_security_desc);
2653                         call_nt_transact_query_security_desc(
2654                                 conn, req,
2655                                 &state->setup, state->setup_count,
2656                                 &state->param, state->total_param,
2657                                 &state->data, state->total_data,
2658                                 state->max_data_return);
2659                         END_PROFILE(NT_transact_query_security_desc);
2660                         break;
2661                 }
2662
2663 #ifdef HAVE_SYS_QUOTAS
2664                 case NT_TRANSACT_GET_USER_QUOTA:
2665                 {
2666                         START_PROFILE(NT_transact_get_user_quota);
2667                         call_nt_transact_get_user_quota(
2668                                 conn, req,
2669                                 &state->setup, state->setup_count,
2670                                 &state->param, state->total_param,
2671                                 &state->data, state->total_data,
2672                                 state->max_data_return);
2673                         END_PROFILE(NT_transact_get_user_quota);
2674                         break;
2675                 }
2676
2677                 case NT_TRANSACT_SET_USER_QUOTA:
2678                 {
2679                         START_PROFILE(NT_transact_set_user_quota);
2680                         call_nt_transact_set_user_quota(
2681                                 conn, req,
2682                                 &state->setup, state->setup_count,
2683                                 &state->param, state->total_param,
2684                                 &state->data, state->total_data,
2685                                 state->max_data_return);
2686                         END_PROFILE(NT_transact_set_user_quota);
2687                         break;
2688                 }
2689 #endif /* HAVE_SYS_QUOTAS */
2690
2691                 default:
2692                         /* Error in request */
2693                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2694                                  "nttrans call\n", state->call));
2695                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2696                         return;
2697         }
2698         return;
2699 }
2700
2701 /****************************************************************************
2702  Reply to a SMBNTtrans.
2703 ****************************************************************************/
2704
2705 void reply_nttrans(struct smb_request *req)
2706 {
2707         connection_struct *conn = req->conn;
2708         uint32_t pscnt;
2709         uint32_t psoff;
2710         uint32_t dscnt;
2711         uint32_t dsoff;
2712         uint16 function_code;
2713         NTSTATUS result;
2714         struct trans_state *state;
2715
2716         START_PROFILE(SMBnttrans);
2717
2718         if (req->wct < 19) {
2719                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2720                 END_PROFILE(SMBnttrans);
2721                 return;
2722         }
2723
2724         pscnt = IVAL(req->vwv+9, 1);
2725         psoff = IVAL(req->vwv+11, 1);
2726         dscnt = IVAL(req->vwv+13, 1);
2727         dsoff = IVAL(req->vwv+15, 1);
2728         function_code = SVAL(req->vwv+18, 0);
2729
2730         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2731                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2732                 END_PROFILE(SMBnttrans);
2733                 return;
2734         }
2735
2736         result = allow_new_trans(conn->pending_trans, req->mid);
2737         if (!NT_STATUS_IS_OK(result)) {
2738                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2739                 reply_nterror(req, result);
2740                 END_PROFILE(SMBnttrans);
2741                 return;
2742         }
2743
2744         if ((state = talloc(conn, struct trans_state)) == NULL) {
2745                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2746                 END_PROFILE(SMBnttrans);
2747                 return;
2748         }
2749
2750         state->cmd = SMBnttrans;
2751
2752         state->mid = req->mid;
2753         state->vuid = req->vuid;
2754         state->total_data = IVAL(req->vwv+3, 1);
2755         state->data = NULL;
2756         state->total_param = IVAL(req->vwv+1, 1);
2757         state->param = NULL;
2758         state->max_data_return = IVAL(req->vwv+7, 1);
2759         state->max_param_return = IVAL(req->vwv+5, 1);
2760
2761         /* setup count is in *words* */
2762         state->setup_count = 2*CVAL(req->vwv+17, 1);
2763         state->setup = NULL;
2764         state->call = function_code;
2765
2766         DEBUG(10, ("num_setup=%u, "
2767                    "param_total=%u, this_param=%u, max_param=%u, "
2768                    "data_total=%u, this_data=%u, max_data=%u, "
2769                    "param_offset=%u, data_offset=%u\n",
2770                    (unsigned)state->setup_count,
2771                    (unsigned)state->total_param, (unsigned)pscnt,
2772                    (unsigned)state->max_param_return,
2773                    (unsigned)state->total_data, (unsigned)dscnt,
2774                    (unsigned)state->max_data_return,
2775                    (unsigned)psoff, (unsigned)dsoff));
2776
2777         /*
2778          * All nttrans messages we handle have smb_wct == 19 +
2779          * state->setup_count.  Ensure this is so as a sanity check.
2780          */
2781
2782         if(req->wct != 19 + (state->setup_count/2)) {
2783                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2784                          req->wct, 19 + (state->setup_count/2)));
2785                 goto bad_param;
2786         }
2787
2788         /* Don't allow more than 128mb for each value. */
2789         if ((state->total_data > (1024*1024*128)) ||
2790             (state->total_param > (1024*1024*128))) {
2791                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2792                 END_PROFILE(SMBnttrans);
2793                 return;
2794         }
2795
2796         if ((dscnt > state->total_data) || (pscnt > state->total_param))
2797                 goto bad_param;
2798
2799         if (state->total_data)  {
2800
2801                 if (trans_oob(state->total_data, 0, dscnt)
2802                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2803                         goto bad_param;
2804                 }
2805
2806                 /* Can't use talloc here, the core routines do realloc on the
2807                  * params and data. */
2808                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2809                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
2810                                  "bytes !\n", (unsigned int)state->total_data));
2811                         TALLOC_FREE(state);
2812                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2813                         END_PROFILE(SMBnttrans);
2814                         return;
2815                 }
2816
2817                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2818         }
2819
2820         if (state->total_param) {
2821
2822                 if (trans_oob(state->total_param, 0, pscnt)
2823                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2824                         goto bad_param;
2825                 }
2826
2827                 /* Can't use talloc here, the core routines do realloc on the
2828                  * params and data. */
2829                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2830                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
2831                                  "bytes !\n", (unsigned int)state->total_param));
2832                         SAFE_FREE(state->data);
2833                         TALLOC_FREE(state);
2834                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2835                         END_PROFILE(SMBnttrans);
2836                         return;
2837                 }
2838
2839                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2840         }
2841
2842         state->received_data  = dscnt;
2843         state->received_param = pscnt;
2844
2845         if(state->setup_count > 0) {
2846                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2847                           state->setup_count));
2848
2849                 /*
2850                  * No overflow possible here, state->setup_count is an
2851                  * unsigned int, being filled by a single byte from
2852                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
2853                  * below is not necessary, it's here to clarify things. The
2854                  * validity of req->vwv and req->wct has been checked in
2855                  * init_smb_request already.
2856                  */
2857                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2858                         goto bad_param;
2859                 }
2860
2861                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2862                 if (state->setup == NULL) {
2863                         DEBUG(0,("reply_nttrans : Out of memory\n"));
2864                         SAFE_FREE(state->data);
2865                         SAFE_FREE(state->param);
2866                         TALLOC_FREE(state);
2867                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2868                         END_PROFILE(SMBnttrans);
2869                         return;
2870                 }
2871
2872                 memcpy(state->setup, req->vwv+19, state->setup_count);
2873                 dump_data(10, (uint8 *)state->setup, state->setup_count);
2874         }
2875
2876         if ((state->received_data == state->total_data) &&
2877             (state->received_param == state->total_param)) {
2878                 handle_nttrans(conn, state, req);
2879                 SAFE_FREE(state->param);
2880                 SAFE_FREE(state->data);
2881                 TALLOC_FREE(state);
2882                 END_PROFILE(SMBnttrans);
2883                 return;
2884         }
2885
2886         DLIST_ADD(conn->pending_trans, state);
2887
2888         /* We need to send an interim response then receive the rest
2889            of the parameter/data bytes */
2890         reply_outbuf(req, 0, 0);
2891         show_msg((char *)req->outbuf);
2892         END_PROFILE(SMBnttrans);
2893         return;
2894
2895   bad_param:
2896
2897         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2898         SAFE_FREE(state->data);
2899         SAFE_FREE(state->param);
2900         TALLOC_FREE(state);
2901         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2902         END_PROFILE(SMBnttrans);
2903         return;
2904 }
2905
2906 /****************************************************************************
2907  Reply to a SMBnttranss
2908  ****************************************************************************/
2909
2910 void reply_nttranss(struct smb_request *req)
2911 {
2912         connection_struct *conn = req->conn;
2913         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2914         struct trans_state *state;
2915
2916         START_PROFILE(SMBnttranss);
2917
2918         show_msg((const char *)req->inbuf);
2919
2920         if (req->wct < 18) {
2921                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2922                 END_PROFILE(SMBnttranss);
2923                 return;
2924         }
2925
2926         for (state = conn->pending_trans; state != NULL;
2927              state = state->next) {
2928                 if (state->mid == req->mid) {
2929                         break;
2930                 }
2931         }
2932
2933         if ((state == NULL) || (state->cmd != SMBnttrans)) {
2934                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2935                 END_PROFILE(SMBnttranss);
2936                 return;
2937         }
2938
2939         /* Revise state->total_param and state->total_data in case they have
2940            changed downwards */
2941         if (IVAL(req->vwv+1, 1) < state->total_param) {
2942                 state->total_param = IVAL(req->vwv+1, 1);
2943         }
2944         if (IVAL(req->vwv+3, 1) < state->total_data) {
2945                 state->total_data = IVAL(req->vwv+3, 1);
2946         }
2947
2948         pcnt = IVAL(req->vwv+5, 1);
2949         poff = IVAL(req->vwv+7, 1);
2950         pdisp = IVAL(req->vwv+9, 1);
2951
2952         dcnt = IVAL(req->vwv+11, 1);
2953         doff = IVAL(req->vwv+13, 1);
2954         ddisp = IVAL(req->vwv+15, 1);
2955
2956         state->received_param += pcnt;
2957         state->received_data += dcnt;
2958
2959         if ((state->received_data > state->total_data) ||
2960             (state->received_param > state->total_param))
2961                 goto bad_param;
2962
2963         if (pcnt) {
2964                 if (trans_oob(state->total_param, pdisp, pcnt)
2965                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2966                         goto bad_param;
2967                 }
2968                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2969         }
2970
2971         if (dcnt) {
2972                 if (trans_oob(state->total_data, ddisp, dcnt)
2973                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2974                         goto bad_param;
2975                 }
2976                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2977         }
2978
2979         if ((state->received_param < state->total_param) ||
2980             (state->received_data < state->total_data)) {
2981                 END_PROFILE(SMBnttranss);
2982                 return;
2983         }
2984
2985         handle_nttrans(conn, state, req);
2986
2987         DLIST_REMOVE(conn->pending_trans, state);
2988         SAFE_FREE(state->data);
2989         SAFE_FREE(state->param);
2990         TALLOC_FREE(state);
2991         END_PROFILE(SMBnttranss);
2992         return;
2993
2994   bad_param:
2995
2996         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2997         DLIST_REMOVE(conn->pending_trans, state);
2998         SAFE_FREE(state->data);
2999         SAFE_FREE(state->param);
3000         TALLOC_FREE(state);
3001         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3002         END_PROFILE(SMBnttranss);
3003         return;
3004 }