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 #include "lib/util_ea.h"
  33 #include "librpc/gen_ndr/ndr_quota.h"
  34 #include "librpc/gen_ndr/ndr_security.h"
  35
  36 extern const struct generic_mapping file_generic_mapping;
  37
  38 static char *nttrans_realloc(char **ptr, size_t size)
  39 {
  40         if (ptr==NULL) {
  41                 smb_panic("nttrans_realloc() called with NULL ptr");
  42         }
  43
  44         *ptr = (char *)SMB_REALLOC(*ptr, size);
  45         if(*ptr == NULL) {
  46                 return NULL;
  47         }
  48         memset(*ptr,'\0',size);
  49         return *ptr;
  50 }
  51
  52 /****************************************************************************
  53  Send the required number of replies back.
  54  We assume all fields other than the data fields are
  55  set correctly for the type of call.
  56  HACK ! Always assumes smb_setup field is zero.
  57 ****************************************************************************/
  58
  59 static void send_nt_replies(connection_struct *conn,
  60                             struct smb_request *req, NTSTATUS nt_error,
  61                             char *params, int paramsize,
  62                             char *pdata, int datasize)
  63 {
  64         int data_to_send = datasize;
  65         int params_to_send = paramsize;
  66         int useable_space;
  67         char *pp = params;
  68         char *pd = pdata;
  69         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  70         int alignment_offset = 1;
  71         int data_alignment_offset = 0;
  72         struct smbXsrv_connection *xconn = req->xconn;
  73         int max_send = xconn->smb1.sessions.max_send;
  74
  75         /*
  76          * If there genuinely are no parameters or data to send just send
  77          * the empty packet.
  78          */
  79
  80         if(params_to_send == 0 && data_to_send == 0) {
  81                 reply_outbuf(req, 18, 0);
  82                 if (NT_STATUS_V(nt_error)) {
  83                         error_packet_set((char *)req->outbuf,
  84                                          0, 0, nt_error,
  85                                          __LINE__,__FILE__);
  86                 }
  87                 show_msg((char *)req->outbuf);
  88                 if (!srv_send_smb(xconn,
  89                                 (char *)req->outbuf,
  90                                 true, req->seqnum+1,
  91                                 IS_CONN_ENCRYPTED(conn),
  92                                 &req->pcd)) {
  93                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
  94                 }
  95                 TALLOC_FREE(req->outbuf);
  96                 return;
  97         }
  98
  99         /*
 100          * When sending params and data ensure that both are nicely aligned.
 101          * Only do this alignment when there is also data to send - else
 102          * can cause NT redirector problems.
 103          */
 104
 105         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
 106                 data_alignment_offset = 4 - (params_to_send % 4);
 107         }
 108
 109         /*
 110          * Space is bufsize minus Netbios over TCP header minus SMB header.
 111          * The alignment_offset is to align the param bytes on a four byte
 112          * boundary (2 bytes for data len, one byte pad).
 113          * NT needs this to work correctly.
 114          */
 115
 116         useable_space = max_send - (smb_size
 117                                     + 2 * 18 /* wct */
 118                                     + alignment_offset
 119                                     + data_alignment_offset);
 120
 121         if (useable_space < 0) {
 122                 char *msg = talloc_asprintf(
 123                         talloc_tos(),
 124                         "send_nt_replies failed sanity useable_space = %d!!!",
 125                         useable_space);
 126                 DEBUG(0, ("%s\n", msg));
 127                 exit_server_cleanly(msg);
 128         }
 129
 130         while (params_to_send || data_to_send) {
 131
 132                 /*
 133                  * Calculate whether we will totally or partially fill this packet.
 134                  */
 135
 136                 total_sent_thistime = params_to_send + data_to_send;
 137
 138                 /*
 139                  * We can never send more than useable_space.
 140                  */
 141
 142                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 143
 144                 reply_outbuf(req, 18,
 145                              total_sent_thistime + alignment_offset
 146                              + data_alignment_offset);
 147
 148                 /*
 149                  * Set total params and data to be sent.
 150                  */
 151
 152                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 153                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 154
 155                 /*
 156                  * Calculate how many parameters and data we can fit into
 157                  * this packet. Parameters get precedence.
 158                  */
 159
 160                 params_sent_thistime = MIN(params_to_send,useable_space);
 161                 data_sent_thistime = useable_space - params_sent_thistime;
 162                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 163
 164                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 165                       params_sent_thistime);
 166
 167                 if(params_sent_thistime == 0) {
 168                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 169                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 170                 } else {
 171                         /*
 172                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 173                          * parameter bytes, however the first 4 bytes of outbuf are
 174                          * the Netbios over TCP header. Thus use smb_base() to subtract
 175                          * them from the calculation.
 176                          */
 177
 178                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 179                               ((smb_buf(req->outbuf)+alignment_offset)
 180                                - smb_base(req->outbuf)));
 181                         /*
 182                          * Absolute displacement of param bytes sent in this packet.
 183                          */
 184
 185                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 186                               pp - params);
 187                 }
 188
 189                 /*
 190                  * Deal with the data portion.
 191                  */
 192
 193                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 194
 195                 if(data_sent_thistime == 0) {
 196                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 197                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 198                 } else {
 199                         /*
 200                          * The offset of the data bytes is the offset of the
 201                          * parameter bytes plus the number of parameters being sent this time.
 202                          */
 203
 204                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 205                               ((smb_buf(req->outbuf)+alignment_offset) -
 206                                smb_base(req->outbuf))
 207                               + params_sent_thistime + data_alignment_offset);
 208                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 209                 }
 210
 211                 /*
 212                  * Copy the param bytes into the packet.
 213                  */
 214
 215                 if(params_sent_thistime) {
 216                         if (alignment_offset != 0) {
 217                                 memset(smb_buf(req->outbuf), 0,
 218                                        alignment_offset);
 219                         }
 220                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 221                                params_sent_thistime);
 222                 }
 223
 224                 /*
 225                  * Copy in the data bytes
 226                  */
 227
 228                 if(data_sent_thistime) {
 229                         if (data_alignment_offset != 0) {
 230                                 memset((smb_buf(req->outbuf)+alignment_offset+
 231                                         params_sent_thistime), 0,
 232                                        data_alignment_offset);
 233                         }
 234                         memcpy(smb_buf(req->outbuf)+alignment_offset
 235                                +params_sent_thistime+data_alignment_offset,
 236                                pd,data_sent_thistime);
 237                 }
 238
 239                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 240                         params_sent_thistime, data_sent_thistime, useable_space));
 241                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 242                         params_to_send, data_to_send, paramsize, datasize));
 243
 244                 if (NT_STATUS_V(nt_error)) {
 245                         error_packet_set((char *)req->outbuf,
 246                                          0, 0, nt_error,
 247                                          __LINE__,__FILE__);
 248                 }
 249
 250                 /* Send the packet */
 251                 show_msg((char *)req->outbuf);
 252                 if (!srv_send_smb(xconn,
 253                                 (char *)req->outbuf,
 254                                 true, req->seqnum+1,
 255                                 IS_CONN_ENCRYPTED(conn),
 256                                 &req->pcd)) {
 257                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 258                 }
 259
 260                 TALLOC_FREE(req->outbuf);
 261
 262                 pp += params_sent_thistime;
 263                 pd += data_sent_thistime;
 264
 265                 params_to_send -= params_sent_thistime;
 266                 data_to_send -= data_sent_thistime;
 267
 268                 /*
 269                  * Sanity check
 270                  */
 271
 272                 if(params_to_send < 0 || data_to_send < 0) {
 273                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 274                                 params_to_send, data_to_send));
 275                         exit_server_cleanly("send_nt_replies: internal error");
 276                 }
 277         }
 278 }
 279
 280 /****************************************************************************
 281  Reply to an NT create and X call on a pipe
 282 ****************************************************************************/
 283
 284 static void nt_open_pipe(char *fname, connection_struct *conn,
 285                          struct smb_request *req, uint16_t *ppnum)
 286 {
 287         files_struct *fsp;
 288         NTSTATUS status;
 289
 290         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 291
 292         /* Strip \\ off the name if present. */
 293         while (fname[0] == '\\') {
 294                 fname++;
 295         }
 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         uint16_t pnum = FNUM_FIELD_INVALID;
 321         char *p = NULL;
 322         uint32_t 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 definitely
 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         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 356         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 357
 358         p = (char *)req->outbuf + smb_vwv2;
 359         p++;
 360         SSVAL(p,0,pnum);
 361         p += 2;
 362         SIVAL(p,0,FILE_WAS_OPENED);
 363         p += 4;
 364         p += 32;
 365         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 366         p += 20;
 367         /* File type. */
 368         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 369         /* Device state. */
 370         SSVAL(p,2, 0x5FF); /* ? */
 371         p += 4;
 372
 373         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 374                 p += 25;
 375                 SIVAL(p,0,FILE_GENERIC_ALL);
 376                 /*
 377                  * For pipes W2K3 seems to return
 378                  * 0x12019B next.
 379                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 380                  */
 381                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 382         }
 383
 384         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 385 }
 386
 387 struct case_semantics_state {
 388         connection_struct *conn;
 389         bool case_sensitive;
 390         bool case_preserve;
 391         bool short_case_preserve;
 392 };
 393
 394 /****************************************************************************
 395  Restore case semantics.
 396 ****************************************************************************/
 397
 398 static int restore_case_semantics(struct case_semantics_state *state)
 399 {
 400         state->conn->case_sensitive = state->case_sensitive;
 401         state->conn->case_preserve = state->case_preserve;
 402         state->conn->short_case_preserve = state->short_case_preserve;
 403         return 0;
 404 }
 405
 406 /****************************************************************************
 407  Save case semantics.
 408 ****************************************************************************/
 409
 410 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 411                                                 connection_struct *conn)
 412 {
 413         struct case_semantics_state *result;
 414
 415         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 416                 return NULL;
 417         }
 418
 419         result->conn = conn;
 420         result->case_sensitive = conn->case_sensitive;
 421         result->case_preserve = conn->case_preserve;
 422         result->short_case_preserve = conn->short_case_preserve;
 423
 424         /* Set to POSIX. */
 425         conn->case_sensitive = True;
 426         conn->case_preserve = True;
 427         conn->short_case_preserve = True;
 428
 429         talloc_set_destructor(result, restore_case_semantics);
 430
 431         return result;
 432 }
 433
 434 /****************************************************************************
 435  Reply to an NT create and X call.
 436 ****************************************************************************/
 437
 438 void reply_ntcreate_and_X(struct smb_request *req)
 439 {
 440         connection_struct *conn = req->conn;
 441         struct smb_filename *smb_fname = NULL;
 442         char *fname = NULL;
 443         uint32_t flags;
 444         uint32_t access_mask;
 445         uint32_t file_attributes;
 446         uint32_t share_access;
 447         uint32_t create_disposition;
 448         uint32_t create_options;
 449         uint16_t root_dir_fid;
 450         uint64_t allocation_size;
 451         /* Breakout the oplock request bits so we can set the
 452            reply bits separately. */
 453         uint32_t fattr=0;
 454         off_t file_len = 0;
 455         int info = 0;
 456         files_struct *fsp = NULL;
 457         char *p = NULL;
 458         struct timespec create_timespec;
 459         struct timespec c_timespec;
 460         struct timespec a_timespec;
 461         struct timespec m_timespec;
 462         NTSTATUS status;
 463         int oplock_request;
 464         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 465         struct case_semantics_state *case_state = NULL;
 466         uint32_t ucf_flags;
 467         TALLOC_CTX *ctx = talloc_tos();
 468
 469         START_PROFILE(SMBntcreateX);
 470
 471         if (req->wct < 24) {
 472                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 473                 goto out;
 474         }
 475
 476         flags = IVAL(req->vwv+3, 1);
 477         access_mask = IVAL(req->vwv+7, 1);
 478         file_attributes = IVAL(req->vwv+13, 1);
 479         share_access = IVAL(req->vwv+15, 1);
 480         create_disposition = IVAL(req->vwv+17, 1);
 481         create_options = IVAL(req->vwv+19, 1);
 482         root_dir_fid = (uint16_t)IVAL(req->vwv+5, 1);
 483
 484         allocation_size = BVAL(req->vwv+9, 1);
 485
 486         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 487                             STR_TERMINATE, &status);
 488
 489         if (!NT_STATUS_IS_OK(status)) {
 490                 reply_nterror(req, status);
 491                 goto out;
 492         }
 493
 494         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 495                   "file_attributes = 0x%x, share_access = 0x%x, "
 496                   "create_disposition = 0x%x create_options = 0x%x "
 497                   "root_dir_fid = 0x%x, fname = %s\n",
 498                         (unsigned int)flags,
 499                         (unsigned int)access_mask,
 500                         (unsigned int)file_attributes,
 501                         (unsigned int)share_access,
 502                         (unsigned int)create_disposition,
 503                         (unsigned int)create_options,
 504                         (unsigned int)root_dir_fid,
 505                         fname));
 506
 507         /*
 508          * we need to remove ignored bits when they come directly from the client
 509          * because we reuse some of them for internal stuff
 510          */
 511         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 512
 513         /*
 514          * If it's an IPC, use the pipe handler.
 515          */
 516
 517         if (IS_IPC(conn)) {
 518                 if (lp_nt_pipe_support()) {
 519                         do_ntcreate_pipe_open(conn, req);
 520                         goto out;
 521                 }
 522                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 523                 goto out;
 524         }
 525
 526         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 527         if (oplock_request) {
 528                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 529                         ? BATCH_OPLOCK : 0;
 530         }
 531
 532         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 533                 case_state = set_posix_case_semantics(ctx, conn);
 534                 if (!case_state) {
 535                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 536                         goto out;
 537                 }
 538         }
 539
 540         ucf_flags = filename_create_ucf_flags(req, create_disposition);
 541         status = filename_convert(ctx,
 542                                 conn,
 543                                 fname,
 544                                 ucf_flags,
 545                                 NULL,
 546                                 NULL,
 547                                 &smb_fname);
 548
 549         TALLOC_FREE(case_state);
 550
 551         if (!NT_STATUS_IS_OK(status)) {
 552                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 553                         reply_botherror(req,
 554                                 NT_STATUS_PATH_NOT_COVERED,
 555                                 ERRSRV, ERRbadpath);
 556                         goto out;
 557                 }
 558                 reply_nterror(req, status);
 559                 goto out;
 560         }
 561
 562         /*
 563          * Bug #6898 - clients using Windows opens should
 564          * never be able to set this attribute into the
 565          * VFS.
 566          */
 567         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 568
 569         status = SMB_VFS_CREATE_FILE(
 570                 conn,                                   /* conn */
 571                 req,                                    /* req */
 572                 root_dir_fid,                           /* root_dir_fid */
 573                 smb_fname,                              /* fname */
 574                 access_mask,                            /* access_mask */
 575                 share_access,                           /* share_access */
 576                 create_disposition,                     /* create_disposition*/
 577                 create_options,                         /* create_options */
 578                 file_attributes,                        /* file_attributes */
 579                 oplock_request,                         /* oplock_request */
 580                 NULL,                                   /* lease */
 581                 allocation_size,                        /* allocation_size */
 582                 0,                                      /* private_flags */
 583                 NULL,                                   /* sd */
 584                 NULL,                                   /* ea_list */
 585                 &fsp,                                   /* result */
 586                 &info,                                  /* pinfo */
 587                 NULL, NULL);                            /* create context */
 588
 589         if (!NT_STATUS_IS_OK(status)) {
 590                 if (open_was_deferred(req->xconn, req->mid)) {
 591                         /* We have re-scheduled this call, no error. */
 592                         goto out;
 593                 }
 594                 reply_openerror(req, status);
 595                 goto out;
 596         }
 597
 598         /* Ensure we're pointing at the correct stat struct. */
 599         TALLOC_FREE(smb_fname);
 600         smb_fname = fsp->fsp_name;
 601
 602         /*
 603          * If the caller set the extended oplock request bit
 604          * and we granted one (by whatever means) - set the
 605          * correct bit for extended oplock reply.
 606          */
 607
 608         if (oplock_request &&
 609             (lp_fake_oplocks(SNUM(conn))
 610              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 611
 612                 /*
 613                  * Exclusive oplock granted
 614                  */
 615
 616                 if (flags & REQUEST_BATCH_OPLOCK) {
 617                         oplock_granted = BATCH_OPLOCK_RETURN;
 618                 } else {
 619                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 620                 }
 621         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 622                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 623         } else {
 624                 oplock_granted = NO_OPLOCK_RETURN;
 625         }
 626
 627         file_len = smb_fname->st.st_ex_size;
 628
 629         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 630                 /* This is very strange. We
 631                  * return 50 words, but only set
 632                  * the wcnt to 42 ? It's definitely
 633                  * what happens on the wire....
 634                  */
 635                 reply_outbuf(req, 50, 0);
 636                 SCVAL(req->outbuf,smb_wct,42);
 637         } else {
 638                 reply_outbuf(req, 34, 0);
 639         }
 640
 641         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 642         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 643
 644         p = (char *)req->outbuf + smb_vwv2;
 645
 646         SCVAL(p, 0, oplock_granted);
 647
 648         p++;
 649         SSVAL(p,0,fsp->fnum);
 650         p += 2;
 651         if ((create_disposition == FILE_SUPERSEDE)
 652             && (info == FILE_WAS_OVERWRITTEN)) {
 653                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 654         } else {
 655                 SIVAL(p,0,info);
 656         }
 657         p += 4;
 658
 659         fattr = dos_mode(conn, smb_fname);
 660         if (fattr == 0) {
 661                 fattr = FILE_ATTRIBUTE_NORMAL;
 662         }
 663
 664         /* Create time. */
 665         create_timespec = get_create_timespec(conn, fsp, smb_fname);
 666         a_timespec = smb_fname->st.st_ex_atime;
 667         m_timespec = smb_fname->st.st_ex_mtime;
 668         c_timespec = get_change_timespec(conn, fsp, smb_fname);
 669
 670         if (lp_dos_filetime_resolution(SNUM(conn))) {
 671                 dos_filetime_timespec(&create_timespec);
 672                 dos_filetime_timespec(&a_timespec);
 673                 dos_filetime_timespec(&m_timespec);
 674                 dos_filetime_timespec(&c_timespec);
 675         }
 676
 677         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
 678         p += 8;
 679         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
 680         p += 8;
 681         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
 682         p += 8;
 683         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
 684         p += 8;
 685         SIVAL(p,0,fattr); /* File Attributes. */
 686         p += 4;
 687         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 688         p += 8;
 689         SOFF_T(p,0,file_len);
 690         p += 8;
 691         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 692                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
 693                 unsigned int num_streams = 0;
 694                 struct stream_struct *streams = NULL;
 695
 696                 if (lp_ea_support(SNUM(conn))) {
 697                         size_t num_names = 0;
 698                         /* Do we have any EA's ? */
 699                         status = get_ea_names_from_file(
 700                             ctx, conn, fsp, smb_fname, NULL, &num_names);
 701                         if (NT_STATUS_IS_OK(status) && num_names) {
 702                                 file_status &= ~NO_EAS;
 703                         }
 704                 }
 705
 706                 status = vfs_streaminfo(conn, NULL, smb_fname, ctx,
 707                         &num_streams, &streams);
 708                 /* There is always one stream, ::$DATA. */
 709                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
 710                         file_status &= ~NO_SUBSTREAMS;
 711                 }
 712                 TALLOC_FREE(streams);
 713                 SSVAL(p,2,file_status);
 714         }
 715         p += 4;
 716         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 717
 718         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 719                 uint32_t perms = 0;
 720                 p += 25;
 721                 if (fsp->is_directory ||
 722                     fsp->can_write ||
 723                     can_write_to_file(conn, smb_fname)) {
 724                         perms = FILE_GENERIC_ALL;
 725                 } else {
 726                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 727                 }
 728                 SIVAL(p,0,perms);
 729         }
 730
 731         DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
 732                 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
 733
 734  out:
 735         END_PROFILE(SMBntcreateX);
 736         return;
 737 }
 738
 739 /****************************************************************************
 740  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 741 ****************************************************************************/
 742
 743 static void do_nt_transact_create_pipe(connection_struct *conn,
 744                                        struct smb_request *req,
 745                                        uint16_t **ppsetup, uint32_t setup_count,
 746                                        char **ppparams, uint32_t parameter_count,
 747                                        char **ppdata, uint32_t data_count)
 748 {
 749         char *fname = NULL;
 750         char *params = *ppparams;
 751         uint16_t pnum = FNUM_FIELD_INVALID;
 752         char *p = NULL;
 753         NTSTATUS status;
 754         size_t param_len;
 755         uint32_t flags;
 756         TALLOC_CTX *ctx = talloc_tos();
 757
 758         /*
 759          * Ensure minimum number of parameters sent.
 760          */
 761
 762         if(parameter_count < 54) {
 763                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 764                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 765                 return;
 766         }
 767
 768         flags = IVAL(params,0);
 769
 770         if (req->posix_pathnames) {
 771                 srvstr_get_path_posix(ctx,
 772                         params,
 773                         req->flags2,
 774                         &fname,
 775                         params+53,
 776                         parameter_count-53,
 777                         STR_TERMINATE,
 778                         &status);
 779         } else {
 780                 srvstr_get_path(ctx,
 781                         params,
 782                         req->flags2,
 783                         &fname,
 784                         params+53,
 785                         parameter_count-53,
 786                         STR_TERMINATE,
 787                         &status);
 788         }
 789         if (!NT_STATUS_IS_OK(status)) {
 790                 reply_nterror(req, status);
 791                 return;
 792         }
 793
 794         nt_open_pipe(fname, conn, req, &pnum);
 795
 796         if (req->outbuf) {
 797                 /* Error return */
 798                 return;
 799         }
 800
 801         /* Realloc the size of parameters and data we will return */
 802         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 803                 /* Extended response is 32 more byyes. */
 804                 param_len = 101;
 805         } else {
 806                 param_len = 69;
 807         }
 808         params = nttrans_realloc(ppparams, param_len);
 809         if(params == NULL) {
 810                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 811                 return;
 812         }
 813
 814         p = params;
 815         SCVAL(p,0,NO_OPLOCK_RETURN);
 816
 817         p += 2;
 818         SSVAL(p,0,pnum);
 819         p += 2;
 820         SIVAL(p,0,FILE_WAS_OPENED);
 821         p += 8;
 822
 823         p += 32;
 824         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 825         p += 20;
 826         /* File type. */
 827         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 828         /* Device state. */
 829         SSVAL(p,2, 0x5FF); /* ? */
 830         p += 4;
 831
 832         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 833                 p += 25;
 834                 SIVAL(p,0,FILE_GENERIC_ALL);
 835                 /*
 836                  * For pipes W2K3 seems to return
 837                  * 0x12019B next.
 838                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 839                  */
 840                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 841         }
 842
 843         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 844
 845         /* Send the required number of replies */
 846         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 847
 848         return;
 849 }
 850
 851 /*********************************************************************
 852  Windows seems to do canonicalization of inheritance bits. Do the
 853  same.
 854 *********************************************************************/
 855
 856 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
 857 {
 858         bool set_auto_inherited = false;
 859
 860         /*
 861          * We need to filter out the
 862          * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
 863          * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
 864          * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
 865          * when an ACE is inherited. Otherwise we zero these bits out.
 866          * See:
 867          *
 868          * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
 869          *
 870          * for details.
 871          */
 872
 873         if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
 874                         == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
 875                 set_auto_inherited = true;
 876         }
 877
 878         psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
 879         if (set_auto_inherited) {
 880                 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
 881         }
 882 }
 883
 884 /****************************************************************************
 885  Internal fn to set security descriptors.
 886 ****************************************************************************/
 887
 888 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
 889                        uint32_t security_info_sent)
 890 {
 891         NTSTATUS status;
 892
 893         if (!CAN_WRITE(fsp->conn)) {
 894                 return NT_STATUS_ACCESS_DENIED;
 895         }
 896
 897         if (!lp_nt_acl_support(SNUM(fsp->conn))) {
 898                 return NT_STATUS_OK;
 899         }
 900
 901         if (S_ISLNK(fsp->fsp_name->st.st_ex_mode)) {
 902                 DEBUG(10, ("ACL set on symlink %s denied.\n",
 903                         fsp_str_dbg(fsp)));
 904                 return NT_STATUS_ACCESS_DENIED;
 905         }
 906
 907         if (psd->owner_sid == NULL) {
 908                 security_info_sent &= ~SECINFO_OWNER;
 909         }
 910         if (psd->group_sid == NULL) {
 911                 security_info_sent &= ~SECINFO_GROUP;
 912         }
 913
 914         /* Ensure we have at least one thing set. */
 915         if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
 916                 /* Just like W2K3 */
 917                 return NT_STATUS_OK;
 918         }
 919
 920         /* Ensure we have the rights to do this. */
 921         if (security_info_sent & SECINFO_OWNER) {
 922                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 923                         return NT_STATUS_ACCESS_DENIED;
 924                 }
 925         }
 926
 927         if (security_info_sent & SECINFO_GROUP) {
 928                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 929                         return NT_STATUS_ACCESS_DENIED;
 930                 }
 931         }
 932
 933         if (security_info_sent & SECINFO_DACL) {
 934                 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
 935                         return NT_STATUS_ACCESS_DENIED;
 936                 }
 937                 /* Convert all the generic bits. */
 938                 if (psd->dacl) {
 939                         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 940                 }
 941         }
 942
 943         if (security_info_sent & SECINFO_SACL) {
 944                 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
 945                         return NT_STATUS_ACCESS_DENIED;
 946                 }
 947                 /* Convert all the generic bits. */
 948                 if (psd->sacl) {
 949                         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 950                 }
 951         }
 952
 953         canonicalize_inheritance_bits(psd);
 954
 955         if (DEBUGLEVEL >= 10) {
 956                 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
 957                 NDR_PRINT_DEBUG(security_descriptor, psd);
 958         }
 959
 960         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 961
 962         TALLOC_FREE(psd);
 963
 964         return status;
 965 }
 966
 967 /****************************************************************************
 968  Internal fn to set security descriptors from a data blob.
 969 ****************************************************************************/
 970
 971 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
 972                        uint32_t security_info_sent)
 973 {
 974         struct security_descriptor *psd = NULL;
 975         NTSTATUS status;
 976
 977         if (sd_len == 0) {
 978                 return NT_STATUS_INVALID_PARAMETER;
 979         }
 980
 981         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 982
 983         if (!NT_STATUS_IS_OK(status)) {
 984                 return status;
 985         }
 986
 987         return set_sd(fsp, psd, security_info_sent);
 988 }
 989
 990 /****************************************************************************
 991  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
 992 ****************************************************************************/
 993
 994 static void call_nt_transact_create(connection_struct *conn,
 995                                     struct smb_request *req,
 996                                     uint16_t **ppsetup, uint32_t setup_count,
 997                                     char **ppparams, uint32_t parameter_count,
 998                                     char **ppdata, uint32_t data_count,
 999                                     uint32_t max_data_count)
1000 {
1001         struct smb_filename *smb_fname = NULL;
1002         char *fname = NULL;
1003         char *params = *ppparams;
1004         char *data = *ppdata;
1005         /* Breakout the oplock request bits so we can set the reply bits separately. */
1006         uint32_t fattr=0;
1007         off_t file_len = 0;
1008         int info = 0;
1009         files_struct *fsp = NULL;
1010         char *p = NULL;
1011         uint32_t flags;
1012         uint32_t access_mask;
1013         uint32_t file_attributes;
1014         uint32_t share_access;
1015         uint32_t create_disposition;
1016         uint32_t create_options;
1017         uint32_t sd_len;
1018         struct security_descriptor *sd = NULL;
1019         uint32_t ea_len;
1020         uint16_t root_dir_fid;
1021         struct timespec create_timespec;
1022         struct timespec c_timespec;
1023         struct timespec a_timespec;
1024         struct timespec m_timespec;
1025         struct ea_list *ea_list = NULL;
1026         NTSTATUS status;
1027         size_t param_len;
1028         uint64_t allocation_size;
1029         int oplock_request;
1030         uint8_t oplock_granted;
1031         struct case_semantics_state *case_state = NULL;
1032         uint32_t ucf_flags;
1033         TALLOC_CTX *ctx = talloc_tos();
1034
1035         DEBUG(5,("call_nt_transact_create\n"));
1036
1037         /*
1038          * If it's an IPC, use the pipe handler.
1039          */
1040
1041         if (IS_IPC(conn)) {
1042                 if (lp_nt_pipe_support()) {
1043                         do_nt_transact_create_pipe(
1044                                 conn, req,
1045                                 ppsetup, setup_count,
1046                                 ppparams, parameter_count,
1047                                 ppdata, data_count);
1048                         goto out;
1049                 }
1050                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1051                 goto out;
1052         }
1053
1054         /*
1055          * Ensure minimum number of parameters sent.
1056          */
1057
1058         if(parameter_count < 54) {
1059                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1060                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1061                 goto out;
1062         }
1063
1064         flags = IVAL(params,0);
1065         access_mask = IVAL(params,8);
1066         file_attributes = IVAL(params,20);
1067         share_access = IVAL(params,24);
1068         create_disposition = IVAL(params,28);
1069         create_options = IVAL(params,32);
1070         sd_len = IVAL(params,36);
1071         ea_len = IVAL(params,40);
1072         root_dir_fid = (uint16_t)IVAL(params,4);
1073         allocation_size = BVAL(params,12);
1074
1075         /*
1076          * we need to remove ignored bits when they come directly from the client
1077          * because we reuse some of them for internal stuff
1078          */
1079         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1080
1081         if (req->posix_pathnames) {
1082                 srvstr_get_path_posix(ctx,
1083                         params,
1084                         req->flags2,
1085                         &fname,
1086                         params+53,
1087                         parameter_count-53,
1088                         STR_TERMINATE,
1089                         &status);
1090         } else {
1091                 srvstr_get_path(ctx,
1092                         params,
1093                         req->flags2,
1094                         &fname,
1095                         params+53,
1096                         parameter_count-53,
1097                         STR_TERMINATE,
1098                         &status);
1099         }
1100         if (!NT_STATUS_IS_OK(status)) {
1101                 reply_nterror(req, status);
1102                 goto out;
1103         }
1104
1105         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1106                 case_state = set_posix_case_semantics(ctx, conn);
1107                 if (!case_state) {
1108                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1109                         goto out;
1110                 }
1111         }
1112
1113         ucf_flags = filename_create_ucf_flags(req, create_disposition);
1114         status = filename_convert(ctx,
1115                                 conn,
1116                                 fname,
1117                                 ucf_flags,
1118                                 NULL,
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         /* Ensure the data_len is correct for the sd and ea values given. */
1136         if ((ea_len + sd_len > data_count)
1137             || (ea_len > data_count) || (sd_len > data_count)
1138             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1139                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1140                            "%u, data_count = %u\n", (unsigned int)ea_len,
1141                            (unsigned int)sd_len, (unsigned int)data_count));
1142                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1143                 goto out;
1144         }
1145
1146         if (sd_len) {
1147                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1148                            sd_len));
1149
1150                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1151                                              &sd);
1152                 if (!NT_STATUS_IS_OK(status)) {
1153                         DEBUG(10, ("call_nt_transact_create: "
1154                                    "unmarshall_sec_desc failed: %s\n",
1155                                    nt_errstr(status)));
1156                         reply_nterror(req, status);
1157                         goto out;
1158                 }
1159         }
1160
1161         if (ea_len) {
1162                 if (!lp_ea_support(SNUM(conn))) {
1163                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1164                                    "EA's not supported.\n",
1165                                    (unsigned int)ea_len));
1166                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1167                         goto out;
1168                 }
1169
1170                 if (ea_len < 10) {
1171                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1172                                   "too small (should be more than 10)\n",
1173                                   (unsigned int)ea_len ));
1174                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1175                         goto out;
1176                 }
1177
1178                 /* We have already checked that ea_len <= data_count here. */
1179                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1180                                                ea_len);
1181                 if (ea_list == NULL) {
1182                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1183                         goto out;
1184                 }
1185
1186                 if (!req->posix_pathnames &&
1187                                 ea_list_has_invalid_name(ea_list)) {
1188                         /* Realloc the size of parameters and data we will return */
1189                         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1190                                 /* Extended response is 32 more byyes. */
1191                                 param_len = 101;
1192                         } else {
1193                                 param_len = 69;
1194                         }
1195                         params = nttrans_realloc(ppparams, param_len);
1196                         if(params == NULL) {
1197                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1198                                 goto out;
1199                         }
1200
1201                         memset(params, '\0', param_len);
1202                         send_nt_replies(conn, req, STATUS_INVALID_EA_NAME,
1203                                 params, param_len, NULL, 0);
1204                         goto out;
1205                 }
1206         }
1207
1208         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1209         if (oplock_request) {
1210                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1211                         ? BATCH_OPLOCK : 0;
1212         }
1213
1214         /*
1215          * Bug #6898 - clients using Windows opens should
1216          * never be able to set this attribute into the
1217          * VFS.
1218          */
1219         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1220
1221         status = SMB_VFS_CREATE_FILE(
1222                 conn,                                   /* conn */
1223                 req,                                    /* req */
1224                 root_dir_fid,                           /* root_dir_fid */
1225                 smb_fname,                              /* fname */
1226                 access_mask,                            /* access_mask */
1227                 share_access,                           /* share_access */
1228                 create_disposition,                     /* create_disposition*/
1229                 create_options,                         /* create_options */
1230                 file_attributes,                        /* file_attributes */
1231                 oplock_request,                         /* oplock_request */
1232                 NULL,                                   /* lease */
1233                 allocation_size,                        /* allocation_size */
1234                 0,                                      /* private_flags */
1235                 sd,                                     /* sd */
1236                 ea_list,                                /* ea_list */
1237                 &fsp,                                   /* result */
1238                 &info,                                  /* pinfo */
1239                 NULL, NULL);                            /* create context */
1240
1241         if(!NT_STATUS_IS_OK(status)) {
1242                 if (open_was_deferred(req->xconn, req->mid)) {
1243                         /* We have re-scheduled this call, no error. */
1244                         return;
1245                 }
1246                 reply_openerror(req, status);
1247                 goto out;
1248         }
1249
1250         /* Ensure we're pointing at the correct stat struct. */
1251         TALLOC_FREE(smb_fname);
1252         smb_fname = fsp->fsp_name;
1253
1254         /*
1255          * If the caller set the extended oplock request bit
1256          * and we granted one (by whatever means) - set the
1257          * correct bit for extended oplock reply.
1258          */
1259
1260         if (oplock_request &&
1261             (lp_fake_oplocks(SNUM(conn))
1262              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1263
1264                 /*
1265                  * Exclusive oplock granted
1266                  */
1267
1268                 if (flags & REQUEST_BATCH_OPLOCK) {
1269                         oplock_granted = BATCH_OPLOCK_RETURN;
1270                 } else {
1271                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1272                 }
1273         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1274                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1275         } else {
1276                 oplock_granted = NO_OPLOCK_RETURN;
1277         }
1278
1279         file_len = smb_fname->st.st_ex_size;
1280
1281         /* Realloc the size of parameters and data we will return */
1282         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1283                 /* Extended response is 32 more byyes. */
1284                 param_len = 101;
1285         } else {
1286                 param_len = 69;
1287         }
1288         params = nttrans_realloc(ppparams, param_len);
1289         if(params == NULL) {
1290                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1291                 goto out;
1292         }
1293
1294         p = params;
1295         SCVAL(p, 0, oplock_granted);
1296
1297         p += 2;
1298         SSVAL(p,0,fsp->fnum);
1299         p += 2;
1300         if ((create_disposition == FILE_SUPERSEDE)
1301             && (info == FILE_WAS_OVERWRITTEN)) {
1302                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1303         } else {
1304                 SIVAL(p,0,info);
1305         }
1306         p += 8;
1307
1308         fattr = dos_mode(conn, smb_fname);
1309         if (fattr == 0) {
1310                 fattr = FILE_ATTRIBUTE_NORMAL;
1311         }
1312
1313         /* Create time. */
1314         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1315         a_timespec = smb_fname->st.st_ex_atime;
1316         m_timespec = smb_fname->st.st_ex_mtime;
1317         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1318
1319         if (lp_dos_filetime_resolution(SNUM(conn))) {
1320                 dos_filetime_timespec(&create_timespec);
1321                 dos_filetime_timespec(&a_timespec);
1322                 dos_filetime_timespec(&m_timespec);
1323                 dos_filetime_timespec(&c_timespec);
1324         }
1325
1326         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1327         p += 8;
1328         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1329         p += 8;
1330         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1331         p += 8;
1332         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1333         p += 8;
1334         SIVAL(p,0,fattr); /* File Attributes. */
1335         p += 4;
1336         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1337         p += 8;
1338         SOFF_T(p,0,file_len);
1339         p += 8;
1340         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1341                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1342                 unsigned int num_streams = 0;
1343                 struct stream_struct *streams = NULL;
1344
1345                 if (lp_ea_support(SNUM(conn))) {
1346                         size_t num_names = 0;
1347                         /* Do we have any EA's ? */
1348                         status = get_ea_names_from_file(
1349                             ctx, conn, fsp, smb_fname, NULL, &num_names);
1350                         if (NT_STATUS_IS_OK(status) && num_names) {
1351                                 file_status &= ~NO_EAS;
1352                         }
1353                 }
1354
1355                 status = vfs_streaminfo(conn, NULL, smb_fname, ctx,
1356                         &num_streams, &streams);
1357                 /* There is always one stream, ::$DATA. */
1358                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1359                         file_status &= ~NO_SUBSTREAMS;
1360                 }
1361                 TALLOC_FREE(streams);
1362                 SSVAL(p,2,file_status);
1363         }
1364         p += 4;
1365         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1366
1367         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1368                 uint32_t perms = 0;
1369                 p += 25;
1370                 if (fsp->is_directory ||
1371                     fsp->can_write ||
1372                     can_write_to_file(conn, smb_fname)) {
1373                         perms = FILE_GENERIC_ALL;
1374                 } else {
1375                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1376                 }
1377                 SIVAL(p,0,perms);
1378         }
1379
1380         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1381                  smb_fname_str_dbg(smb_fname)));
1382
1383         /* Send the required number of replies */
1384         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1385  out:
1386         return;
1387 }
1388
1389 /****************************************************************************
1390  Reply to a NT CANCEL request.
1391  conn POINTER CAN BE NULL HERE !
1392 ****************************************************************************/
1393
1394 void reply_ntcancel(struct smb_request *req)
1395 {
1396         struct smbXsrv_connection *xconn = req->xconn;
1397         struct smbd_server_connection *sconn = req->sconn;
1398
1399         /*
1400          * Go through and cancel any pending change notifies.
1401          */
1402
1403         START_PROFILE(SMBntcancel);
1404         srv_cancel_sign_response(xconn);
1405         remove_pending_change_notify_requests_by_mid(sconn, req->mid);
1406         remove_pending_lock_requests_by_mid_smb1(sconn, req->mid);
1407         cancel_deferred_open_message_smb(xconn, req->mid);
1408
1409         DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1410                 (unsigned long long)req->mid));
1411
1412         END_PROFILE(SMBntcancel);
1413         return;
1414 }
1415
1416 /****************************************************************************
1417  Copy a file.
1418 ****************************************************************************/
1419
1420 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1421                                 connection_struct *conn,
1422                                 struct smb_request *req,
1423                                 struct smb_filename *smb_fname_src,
1424                                 struct smb_filename *smb_fname_dst,
1425                                 uint32_t attrs)
1426 {
1427         files_struct *fsp1,*fsp2;
1428         uint32_t fattr;
1429         int info;
1430         off_t ret=-1;
1431         NTSTATUS status = NT_STATUS_OK;
1432         char *parent;
1433
1434         if (!CAN_WRITE(conn)) {
1435                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1436                 goto out;
1437         }
1438
1439         /* Source must already exist. */
1440         if (!VALID_STAT(smb_fname_src->st)) {
1441                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1442                 goto out;
1443         }
1444
1445         /* Ensure attributes match. */
1446         fattr = dos_mode(conn, smb_fname_src);
1447         if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1448                 status = NT_STATUS_NO_SUCH_FILE;
1449                 goto out;
1450         }
1451
1452         /* Disallow if dst file already exists. */
1453         if (VALID_STAT(smb_fname_dst->st)) {
1454                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1455                 goto out;
1456         }
1457
1458         /* No links from a directory. */
1459         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1460                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1461                 goto out;
1462         }
1463
1464         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1465                   smb_fname_str_dbg(smb_fname_src),
1466                   smb_fname_str_dbg(smb_fname_dst)));
1467
1468         status = SMB_VFS_CREATE_FILE(
1469                 conn,                                   /* conn */
1470                 req,                                    /* req */
1471                 0,                                      /* root_dir_fid */
1472                 smb_fname_src,                          /* fname */
1473                 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1474                         FILE_READ_EA,                   /* access_mask */
1475                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1476                     FILE_SHARE_DELETE),
1477                 FILE_OPEN,                              /* create_disposition*/
1478                 0,                                      /* create_options */
1479                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1480                 NO_OPLOCK,                              /* oplock_request */
1481                 NULL,                                   /* lease */
1482                 0,                                      /* allocation_size */
1483                 0,                                      /* private_flags */
1484                 NULL,                                   /* sd */
1485                 NULL,                                   /* ea_list */
1486                 &fsp1,                                  /* result */
1487                 &info,                                  /* pinfo */
1488                 NULL, NULL);                            /* create context */
1489
1490         if (!NT_STATUS_IS_OK(status)) {
1491                 goto out;
1492         }
1493
1494         status = SMB_VFS_CREATE_FILE(
1495                 conn,                                   /* conn */
1496                 req,                                    /* req */
1497                 0,                                      /* root_dir_fid */
1498                 smb_fname_dst,                          /* fname */
1499                 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1500                         FILE_WRITE_EA,                  /* access_mask */
1501                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1502                     FILE_SHARE_DELETE),
1503                 FILE_CREATE,                            /* create_disposition*/
1504                 0,                                      /* create_options */
1505                 fattr,                                  /* file_attributes */
1506                 NO_OPLOCK,                              /* oplock_request */
1507                 NULL,                                   /* lease */
1508                 0,                                      /* allocation_size */
1509                 0,                                      /* private_flags */
1510                 NULL,                                   /* sd */
1511                 NULL,                                   /* ea_list */
1512                 &fsp2,                                  /* result */
1513                 &info,                                  /* pinfo */
1514                 NULL, NULL);                            /* create context */
1515
1516         if (!NT_STATUS_IS_OK(status)) {
1517                 close_file(NULL, fsp1, ERROR_CLOSE);
1518                 goto out;
1519         }
1520
1521         if (smb_fname_src->st.st_ex_size) {
1522                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1523         }
1524
1525         /*
1526          * As we are opening fsp1 read-only we only expect
1527          * an error on close on fsp2 if we are out of space.
1528          * Thus we don't look at the error return from the
1529          * close of fsp1.
1530          */
1531         close_file(NULL, fsp1, NORMAL_CLOSE);
1532
1533         /* Ensure the modtime is set correctly on the destination file. */
1534         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1535
1536         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1537
1538         /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1539            creates the file. This isn't the correct thing to do in the copy
1540            case. JRA */
1541         if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1542                             NULL)) {
1543                 status = NT_STATUS_NO_MEMORY;
1544                 goto out;
1545         }
1546         file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1547         TALLOC_FREE(parent);
1548
1549         if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1550                 status = NT_STATUS_DISK_FULL;
1551                 goto out;
1552         }
1553  out:
1554         if (!NT_STATUS_IS_OK(status)) {
1555                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1556                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1557                         smb_fname_str_dbg(smb_fname_dst)));
1558         }
1559
1560         return status;
1561 }
1562
1563 /****************************************************************************
1564  Reply to a NT rename request.
1565 ****************************************************************************/
1566
1567 void reply_ntrename(struct smb_request *req)
1568 {
1569         connection_struct *conn = req->conn;
1570         struct smb_filename *smb_fname_old = NULL;
1571         struct smb_filename *smb_fname_new = NULL;
1572         char *oldname = NULL;
1573         char *newname = NULL;
1574         const char *p;
1575         NTSTATUS status;
1576         bool src_has_wcard = False;
1577         bool dest_has_wcard = False;
1578         uint32_t attrs;
1579         uint32_t ucf_flags_src = ucf_flags_from_smb_request(req);
1580         uint32_t ucf_flags_dst = ucf_flags_from_smb_request(req);
1581         uint16_t rename_type;
1582         TALLOC_CTX *ctx = talloc_tos();
1583         bool stream_rename = false;
1584
1585         START_PROFILE(SMBntrename);
1586
1587         if (req->wct < 4) {
1588                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1589                 goto out;
1590         }
1591
1592         attrs = SVAL(req->vwv+0, 0);
1593         rename_type = SVAL(req->vwv+1, 0);
1594
1595         p = (const char *)req->buf + 1;
1596         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1597                                        &status, &src_has_wcard);
1598         if (!NT_STATUS_IS_OK(status)) {
1599                 reply_nterror(req, status);
1600                 goto out;
1601         }
1602
1603         if (!req->posix_pathnames && ms_has_wild(oldname)) {
1604                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1605                 goto out;
1606         }
1607
1608         p++;
1609         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1610                                        &status, &dest_has_wcard);
1611         if (!NT_STATUS_IS_OK(status)) {
1612                 reply_nterror(req, status);
1613                 goto out;
1614         }
1615
1616         if (!req->posix_pathnames) {
1617                 /* The newname must begin with a ':' if the
1618                    oldname contains a ':'. */
1619                 if (strchr_m(oldname, ':')) {
1620                         if (newname[0] != ':') {
1621                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1622                                 goto out;
1623                         }
1624                         stream_rename = true;
1625                 }
1626         }
1627
1628         /*
1629          * If this is a rename operation, allow wildcards and save the
1630          * destination's last component.
1631          */
1632         if (rename_type == RENAME_FLAG_RENAME) {
1633                 ucf_flags_src |= UCF_COND_ALLOW_WCARD_LCOMP;
1634                 ucf_flags_dst |= UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1635         }
1636
1637         /* rename_internals() calls unix_convert(), so don't call it here. */
1638         status = filename_convert(ctx, conn,
1639                                   oldname,
1640                                   ucf_flags_src,
1641                                   NULL,
1642                                   NULL,
1643                                   &smb_fname_old);
1644         if (!NT_STATUS_IS_OK(status)) {
1645                 if (NT_STATUS_EQUAL(status,
1646                                     NT_STATUS_PATH_NOT_COVERED)) {
1647                         reply_botherror(req,
1648                                         NT_STATUS_PATH_NOT_COVERED,
1649                                         ERRSRV, ERRbadpath);
1650                         goto out;
1651                 }
1652                 reply_nterror(req, status);
1653                 goto out;
1654         }
1655
1656         status = filename_convert(ctx, conn,
1657                                   newname,
1658                                   ucf_flags_dst,
1659                                   NULL,
1660                                   &dest_has_wcard,
1661                                   &smb_fname_new);
1662         if (!NT_STATUS_IS_OK(status)) {
1663                 if (NT_STATUS_EQUAL(status,
1664                                     NT_STATUS_PATH_NOT_COVERED)) {
1665                         reply_botherror(req,
1666                                         NT_STATUS_PATH_NOT_COVERED,
1667                                         ERRSRV, ERRbadpath);
1668                         goto out;
1669                 }
1670                 reply_nterror(req, status);
1671                 goto out;
1672         }
1673
1674         if (stream_rename) {
1675                 /* smb_fname_new must be the same as smb_fname_old. */
1676                 TALLOC_FREE(smb_fname_new->base_name);
1677                 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1678                                                 smb_fname_old->base_name);
1679                 if (!smb_fname_new->base_name) {
1680                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1681                         goto out;
1682                 }
1683         }
1684
1685         DEBUG(3,("reply_ntrename: %s -> %s\n",
1686                  smb_fname_str_dbg(smb_fname_old),
1687                  smb_fname_str_dbg(smb_fname_new)));
1688
1689         switch(rename_type) {
1690                 case RENAME_FLAG_RENAME:
1691                         status = rename_internals(ctx, conn, req,
1692                                                   smb_fname_old, smb_fname_new,
1693                                                   attrs, False, src_has_wcard,
1694                                                   dest_has_wcard,
1695                                                   DELETE_ACCESS);
1696                         break;
1697                 case RENAME_FLAG_HARD_LINK:
1698                         if (src_has_wcard || dest_has_wcard) {
1699                                 /* No wildcards. */
1700                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1701                         } else {
1702                                 status = hardlink_internals(ctx, conn,
1703                                                             req,
1704                                                             false,
1705                                                             smb_fname_old,
1706                                                             smb_fname_new);
1707                         }
1708                         break;
1709                 case RENAME_FLAG_COPY:
1710                         if (src_has_wcard || dest_has_wcard) {
1711                                 /* No wildcards. */
1712                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1713                         } else {
1714                                 status = copy_internals(ctx, conn, req,
1715                                                         smb_fname_old,
1716                                                         smb_fname_new,
1717                                                         attrs);
1718                         }
1719                         break;
1720                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1721                         status = NT_STATUS_INVALID_PARAMETER;
1722                         break;
1723                 default:
1724                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1725                         break;
1726         }
1727
1728         if (!NT_STATUS_IS_OK(status)) {
1729                 if (open_was_deferred(req->xconn, req->mid)) {
1730                         /* We have re-scheduled this call. */
1731                         goto out;
1732                 }
1733
1734                 reply_nterror(req, status);
1735                 goto out;
1736         }
1737
1738         reply_outbuf(req, 0, 0);
1739  out:
1740         END_PROFILE(SMBntrename);
1741         return;
1742 }
1743
1744 /****************************************************************************
1745  Reply to a notify change - queue the request and
1746  don't allow a directory to be opened.
1747 ****************************************************************************/
1748
1749 static void smbd_smb1_notify_reply(struct smb_request *req,
1750                                    NTSTATUS error_code,
1751                                    uint8_t *buf, size_t len)
1752 {
1753         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1754 }
1755
1756 static void call_nt_transact_notify_change(connection_struct *conn,
1757                                            struct smb_request *req,
1758                                            uint16_t **ppsetup,
1759                                            uint32_t setup_count,
1760                                            char **ppparams,
1761                                            uint32_t parameter_count,
1762                                            char **ppdata, uint32_t data_count,
1763                                            uint32_t max_data_count,
1764                                            uint32_t max_param_count)
1765 {
1766         uint16_t *setup = *ppsetup;
1767         files_struct *fsp;
1768         uint32_t filter;
1769         NTSTATUS status;
1770         bool recursive;
1771
1772         if(setup_count < 6) {
1773                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1774                 return;
1775         }
1776
1777         fsp = file_fsp(req, SVAL(setup,4));
1778         filter = IVAL(setup, 0);
1779         recursive = (SVAL(setup, 6) != 0) ? True : False;
1780
1781         DEBUG(3,("call_nt_transact_notify_change\n"));
1782
1783         if(!fsp) {
1784                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1785                 return;
1786         }
1787
1788         {
1789                 char *filter_string;
1790
1791                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1792                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1793                         return;
1794                 }
1795
1796                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1797                          "called on %s, filter = %s, recursive = %d\n",
1798                          fsp_str_dbg(fsp), filter_string, recursive));
1799
1800                 TALLOC_FREE(filter_string);
1801         }
1802
1803         if((!fsp->is_directory) || (conn != fsp->conn)) {
1804                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1805                 return;
1806         }
1807
1808         if (fsp->notify == NULL) {
1809
1810                 status = change_notify_create(fsp, filter, recursive);
1811
1812                 if (!NT_STATUS_IS_OK(status)) {
1813                         DEBUG(10, ("change_notify_create returned %s\n",
1814                                    nt_errstr(status)));
1815                         reply_nterror(req, status);
1816                         return;
1817                 }
1818         }
1819
1820         if (change_notify_fsp_has_changes(fsp)) {
1821
1822                 /*
1823                  * We've got changes pending, respond immediately
1824                  */
1825
1826                 /*
1827                  * TODO: write a torture test to check the filtering behaviour
1828                  * here.
1829                  */
1830
1831                 change_notify_reply(req,
1832                                     NT_STATUS_OK,
1833                                     max_param_count,
1834                                     fsp->notify,
1835                                     smbd_smb1_notify_reply);
1836
1837                 /*
1838                  * change_notify_reply() above has independently sent its
1839                  * results
1840                  */
1841                 return;
1842         }
1843
1844         /*
1845          * No changes pending, queue the request
1846          */
1847
1848         status = change_notify_add_request(req,
1849                         max_param_count,
1850                         filter,
1851                         recursive, fsp,
1852                         smbd_smb1_notify_reply);
1853         if (!NT_STATUS_IS_OK(status)) {
1854                 reply_nterror(req, status);
1855         }
1856         return;
1857 }
1858
1859 /****************************************************************************
1860  Reply to an NT transact rename command.
1861 ****************************************************************************/
1862
1863 static void call_nt_transact_rename(connection_struct *conn,
1864                                     struct smb_request *req,
1865                                     uint16_t **ppsetup, uint32_t setup_count,
1866                                     char **ppparams, uint32_t parameter_count,
1867                                     char **ppdata, uint32_t data_count,
1868                                     uint32_t max_data_count)
1869 {
1870         char *params = *ppparams;
1871         char *new_name = NULL;
1872         files_struct *fsp = NULL;
1873         bool dest_has_wcard = False;
1874         NTSTATUS status;
1875         TALLOC_CTX *ctx = talloc_tos();
1876
1877         if(parameter_count < 5) {
1878                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1879                 return;
1880         }
1881
1882         fsp = file_fsp(req, SVAL(params, 0));
1883         if (!check_fsp(conn, req, fsp)) {
1884                 return;
1885         }
1886         if (req->posix_pathnames) {
1887                 srvstr_get_path_wcard_posix(ctx,
1888                                 params,
1889                                 req->flags2,
1890                                 &new_name,
1891                                 params+4,
1892                                 parameter_count - 4,
1893                                 STR_TERMINATE,
1894                                 &status,
1895                                 &dest_has_wcard);
1896         } else {
1897                 srvstr_get_path_wcard(ctx,
1898                                 params,
1899                                 req->flags2,
1900                                 &new_name,
1901                                 params+4,
1902                                 parameter_count - 4,
1903                                 STR_TERMINATE,
1904                                 &status,
1905                                 &dest_has_wcard);
1906         }
1907
1908         if (!NT_STATUS_IS_OK(status)) {
1909                 reply_nterror(req, status);
1910                 return;
1911         }
1912
1913         /*
1914          * W2K3 ignores this request as the RAW-RENAME test
1915          * demonstrates, so we do.
1916          */
1917         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1918
1919         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1920                  fsp_str_dbg(fsp), new_name));
1921
1922         return;
1923 }
1924
1925 /******************************************************************************
1926  Fake up a completely empty SD.
1927 *******************************************************************************/
1928
1929 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1930 {
1931         size_t sd_size;
1932
1933         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1934         if(!*ppsd) {
1935                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1936                 return NT_STATUS_NO_MEMORY;
1937         }
1938
1939         return NT_STATUS_OK;
1940 }
1941
1942 /****************************************************************************
1943  Reply to query a security descriptor.
1944  Callable from SMB1 and SMB2.
1945  If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1946  the required size.
1947 ****************************************************************************/
1948
1949 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1950                                         TALLOC_CTX *mem_ctx,
1951                                         files_struct *fsp,
1952                                         uint32_t security_info_wanted,
1953                                         uint32_t max_data_count,
1954                                         uint8_t **ppmarshalled_sd,
1955                                         size_t *psd_size)
1956 {
1957         NTSTATUS status;
1958         struct security_descriptor *psd = NULL;
1959         TALLOC_CTX *frame = talloc_stackframe();
1960
1961         /*
1962          * Get the permissions to return.
1963          */
1964
1965         if ((security_info_wanted & SECINFO_SACL) &&
1966                         !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1967                 DEBUG(10, ("Access to SACL denied.\n"));
1968                 TALLOC_FREE(frame);
1969                 return NT_STATUS_ACCESS_DENIED;
1970         }
1971
1972         if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1973                         !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1974                 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1975                 TALLOC_FREE(frame);
1976                 return NT_STATUS_ACCESS_DENIED;
1977         }
1978
1979         if (S_ISLNK(fsp->fsp_name->st.st_ex_mode)) {
1980                 DEBUG(10, ("ACL get on symlink %s denied.\n",
1981                         fsp_str_dbg(fsp)));
1982                 TALLOC_FREE(frame);
1983                 return NT_STATUS_ACCESS_DENIED;
1984         }
1985
1986         if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1987                         SECINFO_GROUP|SECINFO_SACL)) {
1988                 /* Don't return SECINFO_LABEL if anything else was
1989                    requested. See bug #8458. */
1990                 security_info_wanted &= ~SECINFO_LABEL;
1991         }
1992
1993         if (!lp_nt_acl_support(SNUM(conn))) {
1994                 status = get_null_nt_acl(frame, &psd);
1995         } else if (security_info_wanted & SECINFO_LABEL) {
1996                 /* Like W2K3 return a null object. */
1997                 status = get_null_nt_acl(frame, &psd);
1998         } else {
1999                 status = SMB_VFS_FGET_NT_ACL(
2000                         fsp, security_info_wanted, frame, &psd);
2001         }
2002         if (!NT_STATUS_IS_OK(status)) {
2003                 TALLOC_FREE(frame);
2004                 return status;
2005         }
2006
2007         if (!(security_info_wanted & SECINFO_OWNER)) {
2008                 psd->owner_sid = NULL;
2009         }
2010         if (!(security_info_wanted & SECINFO_GROUP)) {
2011                 psd->group_sid = NULL;
2012         }
2013         if (!(security_info_wanted & SECINFO_DACL)) {
2014                 psd->type &= ~SEC_DESC_DACL_PRESENT;
2015                 psd->dacl = NULL;
2016         }
2017         if (!(security_info_wanted & SECINFO_SACL)) {
2018                 psd->type &= ~SEC_DESC_SACL_PRESENT;
2019                 psd->sacl = NULL;
2020         }
2021
2022         /* If the SACL/DACL is NULL, but was requested, we mark that it is
2023          * present in the reply to match Windows behavior */
2024         if (psd->sacl == NULL &&
2025             security_info_wanted & SECINFO_SACL)
2026                 psd->type |= SEC_DESC_SACL_PRESENT;
2027         if (psd->dacl == NULL &&
2028             security_info_wanted & SECINFO_DACL)
2029                 psd->type |= SEC_DESC_DACL_PRESENT;
2030
2031         if (security_info_wanted & SECINFO_LABEL) {
2032                 /* Like W2K3 return a null object. */
2033                 psd->owner_sid = NULL;
2034                 psd->group_sid = NULL;
2035                 psd->dacl = NULL;
2036                 psd->sacl = NULL;
2037                 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
2038         }
2039
2040         *psd_size = ndr_size_security_descriptor(psd, 0);
2041
2042         DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
2043                 (unsigned long)*psd_size));
2044
2045         if (DEBUGLEVEL >= 10) {
2046                 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
2047                           fsp_str_dbg(fsp)));
2048                 NDR_PRINT_DEBUG(security_descriptor, psd);
2049         }
2050
2051         if (max_data_count < *psd_size) {
2052                 TALLOC_FREE(frame);
2053                 return NT_STATUS_BUFFER_TOO_SMALL;
2054         }
2055
2056         status = marshall_sec_desc(mem_ctx, psd,
2057                                    ppmarshalled_sd, psd_size);
2058
2059         if (!NT_STATUS_IS_OK(status)) {
2060                 TALLOC_FREE(frame);
2061                 return status;
2062         }
2063
2064         TALLOC_FREE(frame);
2065         return NT_STATUS_OK;
2066 }
2067
2068 /****************************************************************************
2069  SMB1 reply to query a security descriptor.
2070 ****************************************************************************/
2071
2072 static void call_nt_transact_query_security_desc(connection_struct *conn,
2073                                                  struct smb_request *req,
2074                                                  uint16_t **ppsetup,
2075                                                  uint32_t setup_count,
2076                                                  char **ppparams,
2077                                                  uint32_t parameter_count,
2078                                                  char **ppdata,
2079                                                  uint32_t data_count,
2080                                                  uint32_t max_data_count)
2081 {
2082         char *params = *ppparams;
2083         char *data = *ppdata;
2084         size_t sd_size = 0;
2085         uint32_t security_info_wanted;
2086         files_struct *fsp = NULL;
2087         NTSTATUS status;
2088         uint8_t *marshalled_sd = NULL;
2089
2090         if(parameter_count < 8) {
2091                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2092                 return;
2093         }
2094
2095         fsp = file_fsp(req, SVAL(params,0));
2096         if(!fsp) {
2097                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2098                 return;
2099         }
2100
2101         security_info_wanted = IVAL(params,4);
2102
2103         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2104                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2105                  (unsigned int)security_info_wanted));
2106
2107         params = nttrans_realloc(ppparams, 4);
2108         if(params == NULL) {
2109                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2110                 return;
2111         }
2112
2113         /*
2114          * Get the permissions to return.
2115          */
2116
2117         status = smbd_do_query_security_desc(conn,
2118                                         talloc_tos(),
2119                                         fsp,
2120                                         security_info_wanted &
2121                                         SMB_SUPPORTED_SECINFO_FLAGS,
2122                                         max_data_count,
2123                                         &marshalled_sd,
2124                                         &sd_size);
2125
2126         if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2127                 SIVAL(params,0,(uint32_t)sd_size);
2128                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2129                         params, 4, NULL, 0);
2130                 return;
2131         }
2132
2133         if (!NT_STATUS_IS_OK(status)) {
2134                 reply_nterror(req, status);
2135                 return;
2136         }
2137
2138         SMB_ASSERT(sd_size > 0);
2139
2140         SIVAL(params,0,(uint32_t)sd_size);
2141
2142         if (max_data_count < sd_size) {
2143                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2144                                 params, 4, NULL, 0);
2145                 return;
2146         }
2147
2148         /*
2149          * Allocate the data we will return.
2150          */
2151
2152         data = nttrans_realloc(ppdata, sd_size);
2153         if(data == NULL) {
2154                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2155                 return;
2156         }
2157
2158         memcpy(data, marshalled_sd, sd_size);
2159
2160         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2161
2162         return;
2163 }
2164
2165 /****************************************************************************
2166  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2167 ****************************************************************************/
2168
2169 static void call_nt_transact_set_security_desc(connection_struct *conn,
2170                                                struct smb_request *req,
2171                                                uint16_t **ppsetup,
2172                                                uint32_t setup_count,
2173                                                char **ppparams,
2174                                                uint32_t parameter_count,
2175                                                char **ppdata,
2176                                                uint32_t data_count,
2177                                                uint32_t max_data_count)
2178 {
2179         char *params= *ppparams;
2180         char *data = *ppdata;
2181         files_struct *fsp = NULL;
2182         uint32_t security_info_sent = 0;
2183         NTSTATUS status;
2184
2185         if(parameter_count < 8) {
2186                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2187                 return;
2188         }
2189
2190         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2191                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2192                 return;
2193         }
2194
2195         if (!CAN_WRITE(fsp->conn)) {
2196                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2197                 return;
2198         }
2199
2200         if(!lp_nt_acl_support(SNUM(conn))) {
2201                 goto done;
2202         }
2203
2204         security_info_sent = IVAL(params,4);
2205
2206         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2207                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2208
2209         if (data_count == 0) {
2210                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2211                 return;
2212         }
2213
2214         status = set_sd_blob(fsp, (uint8_t *)data, data_count,
2215                              security_info_sent & SMB_SUPPORTED_SECINFO_FLAGS);
2216         if (!NT_STATUS_IS_OK(status)) {
2217                 reply_nterror(req, status);
2218                 return;
2219         }
2220
2221   done:
2222         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2223         return;
2224 }
2225
2226 /****************************************************************************
2227  Reply to NT IOCTL
2228 ****************************************************************************/
2229
2230 static void call_nt_transact_ioctl(connection_struct *conn,
2231                                    struct smb_request *req,
2232                                    uint16_t **ppsetup, uint32_t setup_count,
2233                                    char **ppparams, uint32_t parameter_count,
2234                                    char **ppdata, uint32_t data_count,
2235                                    uint32_t max_data_count)
2236 {
2237         NTSTATUS status;
2238         uint32_t function;
2239         uint16_t fidnum;
2240         files_struct *fsp;
2241         uint8_t isFSctl;
2242         uint8_t compfilter;
2243         char *out_data = NULL;
2244         uint32_t out_data_len = 0;
2245         char *pdata = *ppdata;
2246         TALLOC_CTX *ctx = talloc_tos();
2247
2248         if (setup_count != 8) {
2249                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2250                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2251                 return;
2252         }
2253
2254         function = IVAL(*ppsetup, 0);
2255         fidnum = SVAL(*ppsetup, 4);
2256         isFSctl = CVAL(*ppsetup, 6);
2257         compfilter = CVAL(*ppsetup, 7);
2258
2259         DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2260                  function, fidnum, isFSctl, compfilter));
2261
2262         fsp=file_fsp(req, fidnum);
2263
2264         /*
2265          * We don't really implement IOCTLs, especially on files.
2266          */
2267         if (!isFSctl) {
2268                 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2269                         isFSctl));
2270                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2271                 return;
2272         }
2273
2274         /* Has to be for an open file! */
2275         if (!check_fsp_open(conn, req, fsp)) {
2276                 return;
2277         }
2278
2279         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2280
2281         /*
2282          * out_data might be allocated by the VFS module, but talloc should be
2283          * used, and should be cleaned up when the request ends.
2284          */
2285         status = SMB_VFS_FSCTL(fsp,
2286                                ctx,
2287                                function,
2288                                req->flags2,
2289                                (uint8_t *)pdata,
2290                                data_count,
2291                                (uint8_t **)&out_data,
2292                                max_data_count,
2293                                &out_data_len);
2294         if (!NT_STATUS_IS_OK(status)) {
2295                 reply_nterror(req, status);
2296         } else {
2297                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2298         }
2299 }
2300
2301
2302 #ifdef HAVE_SYS_QUOTAS
2303 static enum ndr_err_code fill_qtlist_from_sids(TALLOC_CTX *mem_ctx,
2304                                                struct files_struct *fsp,
2305                                                SMB_NTQUOTA_HANDLE *qt_handle,
2306                                                struct dom_sid *sids,
2307                                                uint32_t elems)
2308 {
2309         uint32_t i;
2310         TALLOC_CTX *list_ctx = NULL;
2311
2312         list_ctx = talloc_init("quota_sid_list");
2313
2314         if (list_ctx == NULL) {
2315                 DBG_ERR("failed to allocate\n");
2316                 return NDR_ERR_ALLOC;
2317         }
2318
2319         if (qt_handle->quota_list!=NULL) {
2320                 free_ntquota_list(&(qt_handle->quota_list));
2321         }
2322         for (i = 0; i < elems; i++) {
2323                 SMB_NTQUOTA_STRUCT qt;
2324                 SMB_NTQUOTA_LIST *list_item;
2325                 bool ok;
2326
2327                 if (!NT_STATUS_IS_OK(vfs_get_ntquota(fsp,
2328                                                      SMB_USER_QUOTA_TYPE,
2329                                                      &sids[i], &qt))) {
2330                         /* non fatal error, return empty item in result */
2331                         ZERO_STRUCT(qt);
2332                         continue;
2333                 }
2334
2335
2336                 list_item = talloc_zero(list_ctx, SMB_NTQUOTA_LIST);
2337                 if (list_item == NULL) {
2338                         DBG_ERR("failed to allocate\n");
2339                         return NDR_ERR_ALLOC;
2340                 }
2341
2342                 ok = sid_to_uid(&sids[i], &list_item->uid);
2343                 if (!ok) {
2344                         struct dom_sid_buf buf;
2345                         DBG_WARNING("Could not convert SID %s to uid\n",
2346                                     dom_sid_str_buf(&sids[i], &buf));
2347                         /* No idea what to return here... */
2348                         return NDR_ERR_INVALID_POINTER;
2349                 }
2350
2351                 list_item->quotas = talloc_zero(list_item, SMB_NTQUOTA_STRUCT);
2352                 if (list_item->quotas == NULL) {
2353                         DBG_ERR("failed to allocate\n");
2354                         return NDR_ERR_ALLOC;
2355                 }
2356
2357                 *list_item->quotas = qt;
2358                 list_item->mem_ctx = list_ctx;
2359                 DLIST_ADD(qt_handle->quota_list, list_item);
2360         }
2361         qt_handle->tmp_list = qt_handle->quota_list;
2362         return NDR_ERR_SUCCESS;
2363 }
2364
2365 static enum ndr_err_code extract_sids_from_buf(TALLOC_CTX *mem_ctx,
2366                                   uint32_t sidlistlength,
2367                                   DATA_BLOB *sid_buf,
2368                                   struct dom_sid **sids,
2369                                   uint32_t *num)
2370 {
2371         DATA_BLOB blob;
2372         uint32_t i = 0;
2373         enum ndr_err_code err;
2374
2375         struct sid_list_elem {
2376                 struct sid_list_elem *prev, *next;
2377                 struct dom_sid sid;
2378         };
2379
2380         struct sid_list_elem *sid_list = NULL;
2381         struct sid_list_elem *iter = NULL;
2382         TALLOC_CTX *list_ctx = talloc_init("sid_list");
2383         if (!list_ctx) {
2384                 DBG_ERR("OOM\n");
2385                 err = NDR_ERR_ALLOC;
2386                 goto done;
2387         }
2388
2389         *num = 0;
2390         *sids = NULL;
2391
2392         if (sidlistlength) {
2393                 uint32_t offset = 0;
2394                 struct ndr_pull *ndr_pull = NULL;
2395
2396                 if (sidlistlength > sid_buf->length) {
2397                         DBG_ERR("sid_list_length 0x%x exceeds "
2398                                 "available bytes %zx\n",
2399                                 sidlistlength,
2400                                 sid_buf->length);
2401                         err = NDR_ERR_OFFSET;
2402                         goto done;
2403                 }
2404                 while (true) {
2405                         struct file_get_quota_info info;
2406                         struct sid_list_elem *item = NULL;
2407                         uint32_t new_offset = 0;
2408                         blob.data = sid_buf->data + offset;
2409                         blob.length = sidlistlength - offset;
2410                         ndr_pull = ndr_pull_init_blob(&blob, list_ctx);
2411                         if (!ndr_pull) {
2412                                 DBG_ERR("OOM\n");
2413                                 err = NDR_ERR_ALLOC;
2414                                 goto done;
2415                         }
2416                         err = ndr_pull_file_get_quota_info(ndr_pull,
2417                                            NDR_SCALARS | NDR_BUFFERS, &info);
2418                         if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2419                                 DBG_ERR("Failed to pull file_get_quota_info "
2420                                         "from sidlist buffer\n");
2421                                 goto done;
2422                         }
2423                         item = talloc_zero(list_ctx, struct sid_list_elem);
2424                         if (!item) {
2425                                 DBG_ERR("OOM\n");
2426                                 err = NDR_ERR_ALLOC;
2427                                 goto done;
2428                         }
2429                         item->sid = info.sid;
2430                         DLIST_ADD(sid_list, item);
2431                         i++;
2432                         if (i == UINT32_MAX) {
2433                                 DBG_ERR("Integer overflow\n");
2434                                 err = NDR_ERR_ARRAY_SIZE;
2435                                 goto done;
2436                         }
2437                         new_offset = info.next_entry_offset;
2438
2439                         /* if new_offset == 0 no more sid(s) to read. */
2440                         if (new_offset == 0) {
2441                                 break;
2442                         }
2443
2444                         /* Integer wrap? */
2445                         if ((offset + new_offset) < offset) {
2446                                 DBG_ERR("Integer wrap while adding "
2447                                         "new_offset 0x%x to current "
2448                                         "buffer offset 0x%x\n",
2449                                         new_offset, offset);
2450                                 err = NDR_ERR_OFFSET;
2451                                 goto done;
2452                         }
2453
2454                         offset += new_offset;
2455
2456                         /* check if new offset is outside buffer boundry. */
2457                         if (offset >= sidlistlength) {
2458                                 DBG_ERR("bufsize 0x%x exceeded by "
2459                                         "new offset 0x%x)\n",
2460                                         sidlistlength,
2461                                         offset);
2462                                 err = NDR_ERR_OFFSET;
2463                                 goto done;
2464                         }
2465                 }
2466                 *sids = talloc_zero_array(mem_ctx, struct dom_sid, i);
2467                 if (*sids == NULL) {
2468                         DBG_ERR("OOM\n");
2469                         err = NDR_ERR_ALLOC;
2470                         goto done;
2471                 }
2472
2473                 *num = i;
2474
2475                 for (iter = sid_list, i = 0; iter; iter = iter->next, i++) {
2476                         struct dom_sid_buf buf;
2477                         (*sids)[i] = iter->sid;
2478                         DBG_DEBUG("quota SID[%u] %s\n",
2479                                 (unsigned int)i,
2480                                 dom_sid_str_buf(&iter->sid, &buf));
2481                 }
2482         }
2483         err = NDR_ERR_SUCCESS;
2484 done:
2485         TALLOC_FREE(list_ctx);
2486         return err;
2487 }
2488
2489 NTSTATUS smbd_do_query_getinfo_quota(TALLOC_CTX *mem_ctx,
2490                                      files_struct *fsp,
2491                                      bool restart_scan,
2492                                      bool return_single,
2493                                      uint32_t sid_list_length,
2494                                      DATA_BLOB *sid_buf,
2495                                      uint32_t max_data_count,
2496                                      uint8_t **p_data,
2497                                      uint32_t *p_data_size)
2498 {
2499         NTSTATUS status;
2500         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2501         SMB_NTQUOTA_LIST *qt_list = NULL;
2502         DATA_BLOB blob = data_blob_null;
2503         enum ndr_err_code err;
2504
2505         qt_handle =
2506                 (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2507
2508         if (sid_list_length ) {
2509                 struct dom_sid *sids;
2510                 uint32_t elems = 0;
2511                 /*
2512                  * error check pulled offsets and lengths for wrap and
2513                  * exceeding available bytes.
2514                  */
2515                 if (sid_list_length > sid_buf->length) {
2516                         DBG_ERR("sid_list_length 0x%x exceeds "
2517                                 "available bytes %zx\n",
2518                                 sid_list_length,
2519                                 sid_buf->length);
2520                         return NT_STATUS_INVALID_PARAMETER;
2521                 }
2522
2523                 err = extract_sids_from_buf(mem_ctx, sid_list_length,
2524                                             sid_buf, &sids, &elems);
2525                 if (!NDR_ERR_CODE_IS_SUCCESS(err) || elems == 0) {
2526                         return NT_STATUS_INVALID_PARAMETER;
2527                 }
2528                 err = fill_qtlist_from_sids(mem_ctx,
2529                                             fsp,
2530                                             qt_handle,
2531                                             sids,
2532                                             elems);
2533                 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2534                         return NT_STATUS_INVALID_PARAMETER;
2535                 }
2536         } else if (restart_scan) {
2537                 if (vfs_get_user_ntquota_list(fsp,
2538                                               &(qt_handle->quota_list))!=0) {
2539                         return NT_STATUS_INTERNAL_ERROR;
2540                 }
2541         } else {
2542                 if (qt_handle->quota_list!=NULL &&
2543                         qt_handle->tmp_list==NULL) {
2544                         free_ntquota_list(&(qt_handle->quota_list));
2545                 }
2546         }
2547
2548         if (restart_scan !=0 ) {
2549                 qt_list = qt_handle->quota_list;
2550         } else {
2551                 qt_list = qt_handle->tmp_list;
2552         }
2553         status = fill_quota_buffer(mem_ctx, qt_list,
2554                                    return_single != 0,
2555                                    max_data_count,
2556                                    &blob,
2557                                    &qt_handle->tmp_list);
2558         if (!NT_STATUS_IS_OK(status)) {
2559                 return status;
2560         }
2561         if (blob.length > max_data_count) {
2562                 return NT_STATUS_BUFFER_TOO_SMALL;
2563         }
2564
2565         *p_data = blob.data;
2566         *p_data_size = blob.length;
2567         return NT_STATUS_OK;
2568 }
2569
2570 /****************************************************************************
2571  Reply to get user quota
2572 ****************************************************************************/
2573
2574 static void call_nt_transact_get_user_quota(connection_struct *conn,
2575                                             struct smb_request *req,
2576                                             uint16_t **ppsetup,
2577                                             uint32_t setup_count,
2578                                             char **ppparams,
2579                                             uint32_t parameter_count,
2580                                             char **ppdata,
2581                                             uint32_t data_count,
2582                                             uint32_t max_data_count)
2583 {
2584         NTSTATUS nt_status = NT_STATUS_OK;
2585         char *params = *ppparams;
2586         char *pdata = *ppdata;
2587         int data_len = 0;
2588         int param_len = 0;
2589         files_struct *fsp = NULL;
2590         DATA_BLOB blob = data_blob_null;
2591         struct nttrans_query_quota_params info = {0};
2592         enum ndr_err_code err;
2593         TALLOC_CTX *tmp_ctx = NULL;
2594         uint32_t resp_len = 0;
2595         uint8_t *resp_data = 0;
2596
2597         tmp_ctx = talloc_init("ntquota_list");
2598         if (!tmp_ctx) {
2599                 nt_status = NT_STATUS_NO_MEMORY;
2600                 goto error;
2601         }
2602
2603         /* access check */
2604         if (get_current_uid(conn) != sec_initial_uid()) {
2605                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2606                          "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2607                          conn->session_info->unix_info->unix_name));
2608                 nt_status = NT_STATUS_ACCESS_DENIED;
2609                 goto error;
2610         }
2611
2612         blob.data = (uint8_t*)params;
2613         blob.length = parameter_count;
2614
2615         err = ndr_pull_struct_blob(&blob, tmp_ctx, &info,
2616                 (ndr_pull_flags_fn_t)ndr_pull_nttrans_query_quota_params);
2617
2618         if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2619                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: failed to pull "
2620                          "query_quota_params."));
2621                 nt_status = NT_STATUS_INVALID_PARAMETER;
2622                 goto error;
2623         }
2624         DBG_DEBUG("info.return_single_entry = %u, info.restart_scan = %u, "
2625                   "info.sid_list_length = %u, info.start_sid_length = %u, "
2626                   "info.start_sid_offset = %u\n",
2627                   (unsigned int)info.return_single_entry,
2628                   (unsigned int)info.restart_scan,
2629                   (unsigned int)info.sid_list_length,
2630                   (unsigned int)info.start_sid_length,
2631                   (unsigned int)info.start_sid_offset);
2632
2633         /* set blob to point at data for further parsing */
2634         blob.data = (uint8_t*)pdata;
2635         blob.length = data_count;
2636         /*
2637          * Although MS-SMB ref is ambiguous here, a microsoft client will
2638          * only ever send a start sid (as part of a list) with
2639          * sid_list_length & start_sid_offset both set to the actual list
2640          * length. Note: Only a single result is returned in this case
2641          * In the case where either start_sid_offset or start_sid_length
2642          * are set alone or if both set (but have different values) then
2643          * it seems windows will return a number of entries from the start
2644          * of the list of users with quotas set. This behaviour is undocumented
2645          * and windows clients do not send messages of that type. As such we
2646          * currently will reject these requests.
2647          */
2648         if (info.start_sid_length
2649         || (info.sid_list_length != info.start_sid_offset)) {
2650                 DBG_ERR("TRANSACT_GET_USER_QUOTA: unsupported single or "
2651                         "compound sid format\n");
2652                 nt_status = NT_STATUS_INVALID_PARAMETER;
2653                 goto error;
2654         }
2655
2656         /* maybe we can check the quota_fnum */
2657         fsp = file_fsp(req, info.fid);
2658         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2659                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2660                 nt_status = NT_STATUS_INVALID_HANDLE;
2661                 goto error;
2662         }
2663         nt_status = smbd_do_query_getinfo_quota(tmp_ctx,
2664                                   fsp,
2665                                   info.restart_scan,
2666                                   info.return_single_entry,
2667                                   info.sid_list_length,
2668                                   &blob,
2669                                   max_data_count,
2670                                   &resp_data,
2671                                   &resp_len);
2672         if (!NT_STATUS_IS_OK(nt_status)) {
2673                 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_MORE_ENTRIES)) {
2674                         goto error;
2675                 }
2676                 nt_status = NT_STATUS_OK;
2677         }
2678
2679         param_len = 4;
2680         params = nttrans_realloc(ppparams, param_len);
2681         if(params == NULL) {
2682                 nt_status = NT_STATUS_NO_MEMORY;
2683                 goto error;
2684         }
2685
2686         data_len = resp_len;
2687         SIVAL(params, 0, data_len);
2688         pdata = nttrans_realloc(ppdata, data_len);
2689         memcpy(pdata, resp_data, data_len);
2690
2691         TALLOC_FREE(tmp_ctx);
2692         send_nt_replies(conn, req, nt_status, params, param_len,
2693                         pdata, data_len);
2694         return;
2695 error:
2696         TALLOC_FREE(tmp_ctx);
2697         reply_nterror(req, nt_status);
2698 }
2699
2700 /****************************************************************************
2701  Reply to set user quota
2702 ****************************************************************************/
2703
2704 static void call_nt_transact_set_user_quota(connection_struct *conn,
2705                                             struct smb_request *req,
2706                                             uint16_t **ppsetup,
2707                                             uint32_t setup_count,
2708                                             char **ppparams,
2709                                             uint32_t parameter_count,
2710                                             char **ppdata,
2711                                             uint32_t data_count,
2712                                             uint32_t max_data_count)
2713 {
2714         char *params = *ppparams;
2715         char *pdata = *ppdata;
2716         int data_len=0,param_len=0;
2717         SMB_NTQUOTA_STRUCT qt;
2718         struct file_quota_information info = {0};
2719         enum ndr_err_code err;
2720         struct dom_sid sid;
2721         DATA_BLOB inblob;
2722         files_struct *fsp = NULL;
2723         TALLOC_CTX *ctx = NULL;
2724         NTSTATUS status = NT_STATUS_OK;
2725         ZERO_STRUCT(qt);
2726
2727         /* access check */
2728         if (get_current_uid(conn) != sec_initial_uid()) {
2729                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2730                          "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2731                          conn->session_info->unix_info->unix_name));
2732                 status = NT_STATUS_ACCESS_DENIED;
2733                 goto error;
2734         }
2735
2736         /*
2737          * Ensure minimum number of parameters sent.
2738          */
2739
2740         if (parameter_count < 2) {
2741                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2742                 status = NT_STATUS_INVALID_PARAMETER;
2743                 goto error;
2744         }
2745
2746         /* maybe we can check the quota_fnum */
2747         fsp = file_fsp(req, SVAL(params,0));
2748         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2749                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2750                 status = NT_STATUS_INVALID_HANDLE;
2751                 goto error;
2752         }
2753
2754         ctx = talloc_init("set_user_quota");
2755         if (!ctx) {
2756                 status = NT_STATUS_NO_MEMORY;
2757                 goto error;
2758         }
2759         inblob.data = (uint8_t*)pdata;
2760         inblob.length = data_count;
2761
2762         err = ndr_pull_struct_blob(
2763                         &inblob,
2764                         ctx,
2765                         &info,
2766                         (ndr_pull_flags_fn_t)ndr_pull_file_quota_information);
2767
2768         if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2769                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: failed to pull "
2770                          "file_quota_information\n"));
2771                 status = NT_STATUS_INVALID_PARAMETER;
2772                 goto error;
2773         }
2774         qt.usedspace = info.quota_used;
2775
2776         qt.softlim = info.quota_threshold;
2777
2778         qt.hardlim = info.quota_limit;
2779
2780         sid = info.sid;
2781
2782         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2783                 status = NT_STATUS_INTERNAL_ERROR;
2784                 goto error;
2785         }
2786
2787         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2788                         pdata, data_len);
2789         TALLOC_FREE(ctx);
2790         return;
2791 error:
2792         TALLOC_FREE(ctx);
2793         reply_nterror(req, status);
2794 }
2795 #endif /* HAVE_SYS_QUOTAS */
2796
2797 static void handle_nttrans(connection_struct *conn,
2798                            struct trans_state *state,
2799                            struct smb_request *req)
2800 {
2801         if (get_Protocol() >= PROTOCOL_NT1) {
2802                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2803                 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2804         }
2805
2806
2807         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2808
2809         /* Now we must call the relevant NT_TRANS function */
2810         switch(state->call) {
2811                 case NT_TRANSACT_CREATE:
2812                 {
2813                         START_PROFILE(NT_transact_create);
2814                         call_nt_transact_create(
2815                                 conn, req,
2816                                 &state->setup, state->setup_count,
2817                                 &state->param, state->total_param,
2818                                 &state->data, state->total_data,
2819                                 state->max_data_return);
2820                         END_PROFILE(NT_transact_create);
2821                         break;
2822                 }
2823
2824                 case NT_TRANSACT_IOCTL:
2825                 {
2826                         START_PROFILE(NT_transact_ioctl);
2827                         call_nt_transact_ioctl(
2828                                 conn, req,
2829                                 &state->setup, state->setup_count,
2830                                 &state->param, state->total_param,
2831                                 &state->data, state->total_data,
2832                                 state->max_data_return);
2833                         END_PROFILE(NT_transact_ioctl);
2834                         break;
2835                 }
2836
2837                 case NT_TRANSACT_SET_SECURITY_DESC:
2838                 {
2839                         START_PROFILE(NT_transact_set_security_desc);
2840                         call_nt_transact_set_security_desc(
2841                                 conn, req,
2842                                 &state->setup, state->setup_count,
2843                                 &state->param, state->total_param,
2844                                 &state->data, state->total_data,
2845                                 state->max_data_return);
2846                         END_PROFILE(NT_transact_set_security_desc);
2847                         break;
2848                 }
2849
2850                 case NT_TRANSACT_NOTIFY_CHANGE:
2851                 {
2852                         START_PROFILE(NT_transact_notify_change);
2853                         call_nt_transact_notify_change(
2854                                 conn, req,
2855                                 &state->setup, state->setup_count,
2856                                 &state->param, state->total_param,
2857                                 &state->data, state->total_data,
2858                                 state->max_data_return,
2859                                 state->max_param_return);
2860                         END_PROFILE(NT_transact_notify_change);
2861                         break;
2862                 }
2863
2864                 case NT_TRANSACT_RENAME:
2865                 {
2866                         START_PROFILE(NT_transact_rename);
2867                         call_nt_transact_rename(
2868                                 conn, req,
2869                                 &state->setup, state->setup_count,
2870                                 &state->param, state->total_param,
2871                                 &state->data, state->total_data,
2872                                 state->max_data_return);
2873                         END_PROFILE(NT_transact_rename);
2874                         break;
2875                 }
2876
2877                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2878                 {
2879                         START_PROFILE(NT_transact_query_security_desc);
2880                         call_nt_transact_query_security_desc(
2881                                 conn, req,
2882                                 &state->setup, state->setup_count,
2883                                 &state->param, state->total_param,
2884                                 &state->data, state->total_data,
2885                                 state->max_data_return);
2886                         END_PROFILE(NT_transact_query_security_desc);
2887                         break;
2888                 }
2889
2890 #ifdef HAVE_SYS_QUOTAS
2891                 case NT_TRANSACT_GET_USER_QUOTA:
2892                 {
2893                         START_PROFILE(NT_transact_get_user_quota);
2894                         call_nt_transact_get_user_quota(
2895                                 conn, req,
2896                                 &state->setup, state->setup_count,
2897                                 &state->param, state->total_param,
2898                                 &state->data, state->total_data,
2899                                 state->max_data_return);
2900                         END_PROFILE(NT_transact_get_user_quota);
2901                         break;
2902                 }
2903
2904                 case NT_TRANSACT_SET_USER_QUOTA:
2905                 {
2906                         START_PROFILE(NT_transact_set_user_quota);
2907                         call_nt_transact_set_user_quota(
2908                                 conn, req,
2909                                 &state->setup, state->setup_count,
2910                                 &state->param, state->total_param,
2911                                 &state->data, state->total_data,
2912                                 state->max_data_return);
2913                         END_PROFILE(NT_transact_set_user_quota);
2914                         break;
2915                 }
2916 #endif /* HAVE_SYS_QUOTAS */
2917
2918                 default:
2919                         /* Error in request */
2920                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2921                                  "nttrans call\n", state->call));
2922                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2923                         return;
2924         }
2925         return;
2926 }
2927
2928 /****************************************************************************
2929  Reply to a SMBNTtrans.
2930 ****************************************************************************/
2931
2932 void reply_nttrans(struct smb_request *req)
2933 {
2934         connection_struct *conn = req->conn;
2935         uint32_t pscnt;
2936         uint32_t psoff;
2937         uint32_t dscnt;
2938         uint32_t dsoff;
2939         uint16_t function_code;
2940         NTSTATUS result;
2941         struct trans_state *state;
2942
2943         START_PROFILE(SMBnttrans);
2944
2945         if (req->wct < 19) {
2946                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2947                 END_PROFILE(SMBnttrans);
2948                 return;
2949         }
2950
2951         pscnt = IVAL(req->vwv+9, 1);
2952         psoff = IVAL(req->vwv+11, 1);
2953         dscnt = IVAL(req->vwv+13, 1);
2954         dsoff = IVAL(req->vwv+15, 1);
2955         function_code = SVAL(req->vwv+18, 0);
2956
2957         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2958                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2959                 END_PROFILE(SMBnttrans);
2960                 return;
2961         }
2962
2963         result = allow_new_trans(conn->pending_trans, req->mid);
2964         if (!NT_STATUS_IS_OK(result)) {
2965                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2966                 reply_nterror(req, result);
2967                 END_PROFILE(SMBnttrans);
2968                 return;
2969         }
2970
2971         if ((state = talloc(conn, struct trans_state)) == NULL) {
2972                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2973                 END_PROFILE(SMBnttrans);
2974                 return;
2975         }
2976
2977         state->cmd = SMBnttrans;
2978
2979         state->mid = req->mid;
2980         state->vuid = req->vuid;
2981         state->total_data = IVAL(req->vwv+3, 1);
2982         state->data = NULL;
2983         state->total_param = IVAL(req->vwv+1, 1);
2984         state->param = NULL;
2985         state->max_data_return = IVAL(req->vwv+7, 1);
2986         state->max_param_return = IVAL(req->vwv+5, 1);
2987
2988         /* setup count is in *words* */
2989         state->setup_count = 2*CVAL(req->vwv+17, 1);
2990         state->setup = NULL;
2991         state->call = function_code;
2992
2993         DEBUG(10, ("num_setup=%u, "
2994                    "param_total=%u, this_param=%u, max_param=%u, "
2995                    "data_total=%u, this_data=%u, max_data=%u, "
2996                    "param_offset=%u, data_offset=%u\n",
2997                    (unsigned)state->setup_count,
2998                    (unsigned)state->total_param, (unsigned)pscnt,
2999                    (unsigned)state->max_param_return,
3000                    (unsigned)state->total_data, (unsigned)dscnt,
3001                    (unsigned)state->max_data_return,
3002                    (unsigned)psoff, (unsigned)dsoff));
3003
3004         /*
3005          * All nttrans messages we handle have smb_wct == 19 +
3006          * state->setup_count.  Ensure this is so as a sanity check.
3007          */
3008
3009         if(req->wct != 19 + (state->setup_count/2)) {
3010                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3011                          req->wct, 19 + (state->setup_count/2)));
3012                 goto bad_param;
3013         }
3014
3015         /* Don't allow more than 128mb for each value. */
3016         if ((state->total_data > (1024*1024*128)) ||
3017             (state->total_param > (1024*1024*128))) {
3018                 reply_nterror(req, NT_STATUS_NO_MEMORY);
3019                 END_PROFILE(SMBnttrans);
3020                 return;
3021         }
3022
3023         if ((dscnt > state->total_data) || (pscnt > state->total_param))
3024                 goto bad_param;
3025
3026         if (state->total_data)  {
3027
3028                 if (trans_oob(state->total_data, 0, dscnt)
3029                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3030                         goto bad_param;
3031                 }
3032
3033                 /* Can't use talloc here, the core routines do realloc on the
3034                  * params and data. */
3035                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3036                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
3037                                  "bytes !\n", (unsigned int)state->total_data));
3038                         TALLOC_FREE(state);
3039                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3040                         END_PROFILE(SMBnttrans);
3041                         return;
3042                 }
3043
3044                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3045         }
3046
3047         if (state->total_param) {
3048
3049                 if (trans_oob(state->total_param, 0, pscnt)
3050                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3051                         goto bad_param;
3052                 }
3053
3054                 /* Can't use talloc here, the core routines do realloc on the
3055                  * params and data. */
3056                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3057                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
3058                                  "bytes !\n", (unsigned int)state->total_param));
3059                         SAFE_FREE(state->data);
3060                         TALLOC_FREE(state);
3061                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3062                         END_PROFILE(SMBnttrans);
3063                         return;
3064                 }
3065
3066                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3067         }
3068
3069         state->received_data  = dscnt;
3070         state->received_param = pscnt;
3071
3072         if(state->setup_count > 0) {
3073                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3074                           state->setup_count));
3075
3076                 /*
3077                  * No overflow possible here, state->setup_count is an
3078                  * unsigned int, being filled by a single byte from
3079                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
3080                  * below is not necessary, it's here to clarify things. The
3081                  * validity of req->vwv and req->wct has been checked in
3082                  * init_smb_request already.
3083                  */
3084                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3085                         goto bad_param;
3086                 }
3087
3088                 state->setup = (uint16_t *)TALLOC(state, state->setup_count);
3089                 if (state->setup == NULL) {
3090                         DEBUG(0,("reply_nttrans : Out of memory\n"));
3091                         SAFE_FREE(state->data);
3092                         SAFE_FREE(state->param);
3093                         TALLOC_FREE(state);
3094                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3095                         END_PROFILE(SMBnttrans);
3096                         return;
3097                 }
3098
3099                 memcpy(state->setup, req->vwv+19, state->setup_count);
3100                 dump_data(10, (uint8_t *)state->setup, state->setup_count);
3101         }
3102
3103         if ((state->received_data == state->total_data) &&
3104             (state->received_param == state->total_param)) {
3105                 handle_nttrans(conn, state, req);
3106                 SAFE_FREE(state->param);
3107                 SAFE_FREE(state->data);
3108                 TALLOC_FREE(state);
3109                 END_PROFILE(SMBnttrans);
3110                 return;
3111         }
3112
3113         DLIST_ADD(conn->pending_trans, state);
3114
3115         /* We need to send an interim response then receive the rest
3116            of the parameter/data bytes */
3117         reply_outbuf(req, 0, 0);
3118         show_msg((char *)req->outbuf);
3119         END_PROFILE(SMBnttrans);
3120         return;
3121
3122   bad_param:
3123
3124         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3125         SAFE_FREE(state->data);
3126         SAFE_FREE(state->param);
3127         TALLOC_FREE(state);
3128         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3129         END_PROFILE(SMBnttrans);
3130         return;
3131 }
3132
3133 /****************************************************************************
3134  Reply to a SMBnttranss
3135  ****************************************************************************/
3136
3137 void reply_nttranss(struct smb_request *req)
3138 {
3139         connection_struct *conn = req->conn;
3140         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3141         struct trans_state *state;
3142
3143         START_PROFILE(SMBnttranss);
3144
3145         show_msg((const char *)req->inbuf);
3146
3147         /* Windows clients expect all replies to
3148            an NT transact secondary (SMBnttranss 0xA1)
3149            to have a command code of NT transact
3150            (SMBnttrans 0xA0). See bug #8989 for details. */
3151         req->cmd = SMBnttrans;
3152
3153         if (req->wct < 18) {
3154                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3155                 END_PROFILE(SMBnttranss);
3156                 return;
3157         }
3158
3159         for (state = conn->pending_trans; state != NULL;
3160              state = state->next) {
3161                 if (state->mid == req->mid) {
3162                         break;
3163                 }
3164         }
3165
3166         if ((state == NULL) || (state->cmd != SMBnttrans)) {
3167                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3168                 END_PROFILE(SMBnttranss);
3169                 return;
3170         }
3171
3172         /* Revise state->total_param and state->total_data in case they have
3173            changed downwards */
3174         if (IVAL(req->vwv+1, 1) < state->total_param) {
3175                 state->total_param = IVAL(req->vwv+1, 1);
3176         }
3177         if (IVAL(req->vwv+3, 1) < state->total_data) {
3178                 state->total_data = IVAL(req->vwv+3, 1);
3179         }
3180
3181         pcnt = IVAL(req->vwv+5, 1);
3182         poff = IVAL(req->vwv+7, 1);
3183         pdisp = IVAL(req->vwv+9, 1);
3184
3185         dcnt = IVAL(req->vwv+11, 1);
3186         doff = IVAL(req->vwv+13, 1);
3187         ddisp = IVAL(req->vwv+15, 1);
3188
3189         state->received_param += pcnt;
3190         state->received_data += dcnt;
3191
3192         if ((state->received_data > state->total_data) ||
3193             (state->received_param > state->total_param))
3194                 goto bad_param;
3195
3196         if (pcnt) {
3197                 if (trans_oob(state->total_param, pdisp, pcnt)
3198                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3199                         goto bad_param;
3200                 }
3201                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3202         }
3203
3204         if (dcnt) {
3205                 if (trans_oob(state->total_data, ddisp, dcnt)
3206                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3207                         goto bad_param;
3208                 }
3209                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3210         }
3211
3212         if ((state->received_param < state->total_param) ||
3213             (state->received_data < state->total_data)) {
3214                 END_PROFILE(SMBnttranss);
3215                 return;
3216         }
3217
3218         handle_nttrans(conn, state, req);
3219
3220         DLIST_REMOVE(conn->pending_trans, state);
3221         SAFE_FREE(state->data);
3222         SAFE_FREE(state->param);
3223         TALLOC_FREE(state);
3224         END_PROFILE(SMBnttranss);
3225         return;
3226
3227   bad_param:
3228
3229         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3230         DLIST_REMOVE(conn->pending_trans, state);
3231         SAFE_FREE(state->data);
3232         SAFE_FREE(state->param);
3233         TALLOC_FREE(state);
3234         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3235         END_PROFILE(SMBnttranss);
3236         return;
3237 }