source3/smbd/nttrans.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB NT transaction handling
   4    Copyright (C) Jeremy Allison                 1994-2007
   5    Copyright (C) Stefan (metze) Metzmacher      2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "system/filesys.h"
  23 #include "smbd/smbd.h"
  24 #include "smbd/globals.h"
  25 #include "fake_file.h"
  26 #include "../libcli/security/security.h"
  27 #include "../librpc/gen_ndr/ndr_security.h"
  28 #include "passdb/lookup_sid.h"
  29 #include "auth.h"
  30 #include "smbprofile.h"
  31 #include "libsmb/libsmb.h"
  32
  33 extern const struct generic_mapping file_generic_mapping;
  34
  35 static char *nttrans_realloc(char **ptr, size_t size)
  36 {
  37         if (ptr==NULL) {
  38                 smb_panic("nttrans_realloc() called with NULL ptr");
  39         }
  40
  41         *ptr = (char *)SMB_REALLOC(*ptr, size);
  42         if(*ptr == NULL) {
  43                 return NULL;
  44         }
  45         memset(*ptr,'\0',size);
  46         return *ptr;
  47 }
  48
  49 /****************************************************************************
  50  Send the required number of replies back.
  51  We assume all fields other than the data fields are
  52  set correctly for the type of call.
  53  HACK ! Always assumes smb_setup field is zero.
  54 ****************************************************************************/
  55
  56 static void send_nt_replies(connection_struct *conn,
  57                             struct smb_request *req, NTSTATUS nt_error,
  58                             char *params, int paramsize,
  59                             char *pdata, int datasize)
  60 {
  61         int data_to_send = datasize;
  62         int params_to_send = paramsize;
  63         int useable_space;
  64         char *pp = params;
  65         char *pd = pdata;
  66         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  67         int alignment_offset = 1;
  68         int data_alignment_offset = 0;
  69         struct smbd_server_connection *sconn = req->sconn;
  70         int max_send = sconn->smb1.sessions.max_send;
  71
  72         /*
  73          * If there genuinely are no parameters or data to send just send
  74          * the empty packet.
  75          */
  76
  77         if(params_to_send == 0 && data_to_send == 0) {
  78                 reply_outbuf(req, 18, 0);
  79                 if (NT_STATUS_V(nt_error)) {
  80                         error_packet_set((char *)req->outbuf,
  81                                          0, 0, nt_error,
  82                                          __LINE__,__FILE__);
  83                 }
  84                 show_msg((char *)req->outbuf);
  85                 if (!srv_send_smb(sconn,
  86                                 (char *)req->outbuf,
  87                                 true, req->seqnum+1,
  88                                 IS_CONN_ENCRYPTED(conn),
  89                                 &req->pcd)) {
  90                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
  91                 }
  92                 TALLOC_FREE(req->outbuf);
  93                 return;
  94         }
  95
  96         /*
  97          * When sending params and data ensure that both are nicely aligned.
  98          * Only do this alignment when there is also data to send - else
  99          * can cause NT redirector problems.
 100          */
 101
 102         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
 103                 data_alignment_offset = 4 - (params_to_send % 4);
 104         }
 105
 106         /*
 107          * Space is bufsize minus Netbios over TCP header minus SMB header.
 108          * The alignment_offset is to align the param bytes on a four byte
 109          * boundary (2 bytes for data len, one byte pad).
 110          * NT needs this to work correctly.
 111          */
 112
 113         useable_space = max_send - (smb_size
 114                                     + 2 * 18 /* wct */
 115                                     + alignment_offset
 116                                     + data_alignment_offset);
 117
 118         if (useable_space < 0) {
 119                 char *msg = talloc_asprintf(
 120                         talloc_tos(),
 121                         "send_nt_replies failed sanity useable_space = %d!!!",
 122                         useable_space);
 123                 DEBUG(0, ("%s\n", msg));
 124                 exit_server_cleanly(msg);
 125         }
 126
 127         while (params_to_send || data_to_send) {
 128
 129                 /*
 130                  * Calculate whether we will totally or partially fill this packet.
 131                  */
 132
 133                 total_sent_thistime = params_to_send + data_to_send;
 134
 135                 /*
 136                  * We can never send more than useable_space.
 137                  */
 138
 139                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 140
 141                 reply_outbuf(req, 18,
 142                              total_sent_thistime + alignment_offset
 143                              + data_alignment_offset);
 144
 145                 /*
 146                  * Set total params and data to be sent.
 147                  */
 148
 149                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 150                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 151
 152                 /*
 153                  * Calculate how many parameters and data we can fit into
 154                  * this packet. Parameters get precedence.
 155                  */
 156
 157                 params_sent_thistime = MIN(params_to_send,useable_space);
 158                 data_sent_thistime = useable_space - params_sent_thistime;
 159                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 160
 161                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 162                       params_sent_thistime);
 163
 164                 if(params_sent_thistime == 0) {
 165                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 166                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 167                 } else {
 168                         /*
 169                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 170                          * parameter bytes, however the first 4 bytes of outbuf are
 171                          * the Netbios over TCP header. Thus use smb_base() to subtract
 172                          * them from the calculation.
 173                          */
 174
 175                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 176                               ((smb_buf(req->outbuf)+alignment_offset)
 177                                - smb_base(req->outbuf)));
 178                         /*
 179                          * Absolute displacement of param bytes sent in this packet.
 180                          */
 181
 182                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 183                               pp - params);
 184                 }
 185
 186                 /*
 187                  * Deal with the data portion.
 188                  */
 189
 190                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 191
 192                 if(data_sent_thistime == 0) {
 193                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 194                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 195                 } else {
 196                         /*
 197                          * The offset of the data bytes is the offset of the
 198                          * parameter bytes plus the number of parameters being sent this time.
 199                          */
 200
 201                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 202                               ((smb_buf(req->outbuf)+alignment_offset) -
 203                                smb_base(req->outbuf))
 204                               + params_sent_thistime + data_alignment_offset);
 205                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 206                 }
 207
 208                 /*
 209                  * Copy the param bytes into the packet.
 210                  */
 211
 212                 if(params_sent_thistime) {
 213                         if (alignment_offset != 0) {
 214                                 memset(smb_buf(req->outbuf), 0,
 215                                        alignment_offset);
 216                         }
 217                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 218                                params_sent_thistime);
 219                 }
 220
 221                 /*
 222                  * Copy in the data bytes
 223                  */
 224
 225                 if(data_sent_thistime) {
 226                         if (data_alignment_offset != 0) {
 227                                 memset((smb_buf(req->outbuf)+alignment_offset+
 228                                         params_sent_thistime), 0,
 229                                        data_alignment_offset);
 230                         }
 231                         memcpy(smb_buf(req->outbuf)+alignment_offset
 232                                +params_sent_thistime+data_alignment_offset,
 233                                pd,data_sent_thistime);
 234                 }
 235
 236                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 237                         params_sent_thistime, data_sent_thistime, useable_space));
 238                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 239                         params_to_send, data_to_send, paramsize, datasize));
 240
 241                 if (NT_STATUS_V(nt_error)) {
 242                         error_packet_set((char *)req->outbuf,
 243                                          0, 0, nt_error,
 244                                          __LINE__,__FILE__);
 245                 }
 246
 247                 /* Send the packet */
 248                 show_msg((char *)req->outbuf);
 249                 if (!srv_send_smb(sconn,
 250                                 (char *)req->outbuf,
 251                                 true, req->seqnum+1,
 252                                 IS_CONN_ENCRYPTED(conn),
 253                                 &req->pcd)) {
 254                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 255                 }
 256
 257                 TALLOC_FREE(req->outbuf);
 258
 259                 pp += params_sent_thistime;
 260                 pd += data_sent_thistime;
 261
 262                 params_to_send -= params_sent_thistime;
 263                 data_to_send -= data_sent_thistime;
 264
 265                 /*
 266                  * Sanity check
 267                  */
 268
 269                 if(params_to_send < 0 || data_to_send < 0) {
 270                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 271                                 params_to_send, data_to_send));
 272                         exit_server_cleanly("send_nt_replies: internal error");
 273                 }
 274         }
 275 }
 276
 277 /****************************************************************************
 278  Reply to an NT create and X call on a pipe
 279 ****************************************************************************/
 280
 281 static void nt_open_pipe(char *fname, connection_struct *conn,
 282                          struct smb_request *req, uint16_t *ppnum)
 283 {
 284         files_struct *fsp;
 285         NTSTATUS status;
 286
 287         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 288
 289         /* Strip \\ off the name if present. */
 290         while (fname[0] == '\\') {
 291                 fname++;
 292         }
 293
 294         status = open_np_file(req, fname, &fsp);
 295         if (!NT_STATUS_IS_OK(status)) {
 296                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 297                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 298                                         ERRDOS, ERRbadpipe);
 299                         return;
 300                 }
 301                 reply_nterror(req, status);
 302                 return;
 303         }
 304
 305         *ppnum = fsp->fnum;
 306         return;
 307 }
 308
 309 /****************************************************************************
 310  Reply to an NT create and X call for pipes.
 311 ****************************************************************************/
 312
 313 static void do_ntcreate_pipe_open(connection_struct *conn,
 314                                   struct smb_request *req)
 315 {
 316         char *fname = NULL;
 317         uint16_t pnum = FNUM_FIELD_INVALID;
 318         char *p = NULL;
 319         uint32 flags = IVAL(req->vwv+3, 1);
 320         TALLOC_CTX *ctx = talloc_tos();
 321
 322         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
 323
 324         if (!fname) {
 325                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 326                                 ERRDOS, ERRbadpipe);
 327                 return;
 328         }
 329         nt_open_pipe(fname, conn, req, &pnum);
 330
 331         if (req->outbuf) {
 332                 /* error reply */
 333                 return;
 334         }
 335
 336         /*
 337          * Deal with pipe return.
 338          */
 339
 340         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 341                 /* This is very strange. We
 342                  * return 50 words, but only set
 343                  * the wcnt to 42 ? It's definitely
 344                  * what happens on the wire....
 345                  */
 346                 reply_outbuf(req, 50, 0);
 347                 SCVAL(req->outbuf,smb_wct,42);
 348         } else {
 349                 reply_outbuf(req, 34, 0);
 350         }
 351
 352         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 353         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 354
 355         p = (char *)req->outbuf + smb_vwv2;
 356         p++;
 357         SSVAL(p,0,pnum);
 358         p += 2;
 359         SIVAL(p,0,FILE_WAS_OPENED);
 360         p += 4;
 361         p += 32;
 362         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 363         p += 20;
 364         /* File type. */
 365         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 366         /* Device state. */
 367         SSVAL(p,2, 0x5FF); /* ? */
 368         p += 4;
 369
 370         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 371                 p += 25;
 372                 SIVAL(p,0,FILE_GENERIC_ALL);
 373                 /*
 374                  * For pipes W2K3 seems to return
 375                  * 0x12019B next.
 376                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 377                  */
 378                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 379         }
 380
 381         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 382 }
 383
 384 struct case_semantics_state {
 385         connection_struct *conn;
 386         bool case_sensitive;
 387         bool case_preserve;
 388         bool short_case_preserve;
 389 };
 390
 391 /****************************************************************************
 392  Restore case semantics.
 393 ****************************************************************************/
 394
 395 static int restore_case_semantics(struct case_semantics_state *state)
 396 {
 397         state->conn->case_sensitive = state->case_sensitive;
 398         state->conn->case_preserve = state->case_preserve;
 399         state->conn->short_case_preserve = state->short_case_preserve;
 400         return 0;
 401 }
 402
 403 /****************************************************************************
 404  Save case semantics.
 405 ****************************************************************************/
 406
 407 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 408                                                 connection_struct *conn)
 409 {
 410         struct case_semantics_state *result;
 411
 412         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 413                 return NULL;
 414         }
 415
 416         result->conn = conn;
 417         result->case_sensitive = conn->case_sensitive;
 418         result->case_preserve = conn->case_preserve;
 419         result->short_case_preserve = conn->short_case_preserve;
 420
 421         /* Set to POSIX. */
 422         conn->case_sensitive = True;
 423         conn->case_preserve = True;
 424         conn->short_case_preserve = True;
 425
 426         talloc_set_destructor(result, restore_case_semantics);
 427
 428         return result;
 429 }
 430
 431 /****************************************************************************
 432  Reply to an NT create and X call.
 433 ****************************************************************************/
 434
 435 void reply_ntcreate_and_X(struct smb_request *req)
 436 {
 437         connection_struct *conn = req->conn;
 438         struct smb_filename *smb_fname = NULL;
 439         char *fname = NULL;
 440         uint32 flags;
 441         uint32 access_mask;
 442         uint32 file_attributes;
 443         uint32 share_access;
 444         uint32 create_disposition;
 445         uint32 create_options;
 446         uint16 root_dir_fid;
 447         uint64_t allocation_size;
 448         /* Breakout the oplock request bits so we can set the
 449            reply bits separately. */
 450         uint32 fattr=0;
 451         off_t file_len = 0;
 452         int info = 0;
 453         files_struct *fsp = NULL;
 454         char *p = NULL;
 455         struct timespec create_timespec;
 456         struct timespec c_timespec;
 457         struct timespec a_timespec;
 458         struct timespec m_timespec;
 459         struct timespec write_time_ts;
 460         NTSTATUS status;
 461         int oplock_request;
 462         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 463         struct case_semantics_state *case_state = NULL;
 464         TALLOC_CTX *ctx = talloc_tos();
 465
 466         START_PROFILE(SMBntcreateX);
 467
 468         if (req->wct < 24) {
 469                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 470                 goto out;
 471         }
 472
 473         flags = IVAL(req->vwv+3, 1);
 474         access_mask = IVAL(req->vwv+7, 1);
 475         file_attributes = IVAL(req->vwv+13, 1);
 476         share_access = IVAL(req->vwv+15, 1);
 477         create_disposition = IVAL(req->vwv+17, 1);
 478         create_options = IVAL(req->vwv+19, 1);
 479         root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
 480
 481         allocation_size = BVAL(req->vwv+9, 1);
 482
 483         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 484                             STR_TERMINATE, &status);
 485
 486         if (!NT_STATUS_IS_OK(status)) {
 487                 reply_nterror(req, status);
 488                 goto out;
 489         }
 490
 491         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 492                   "file_attributes = 0x%x, share_access = 0x%x, "
 493                   "create_disposition = 0x%x create_options = 0x%x "
 494                   "root_dir_fid = 0x%x, fname = %s\n",
 495                         (unsigned int)flags,
 496                         (unsigned int)access_mask,
 497                         (unsigned int)file_attributes,
 498                         (unsigned int)share_access,
 499                         (unsigned int)create_disposition,
 500                         (unsigned int)create_options,
 501                         (unsigned int)root_dir_fid,
 502                         fname));
 503
 504         /*
 505          * we need to remove ignored bits when they come directly from the client
 506          * because we reuse some of them for internal stuff
 507          */
 508         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 509
 510         /*
 511          * If it's an IPC, use the pipe handler.
 512          */
 513
 514         if (IS_IPC(conn)) {
 515                 if (lp_nt_pipe_support()) {
 516                         do_ntcreate_pipe_open(conn, req);
 517                         goto out;
 518                 }
 519                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 520                 goto out;
 521         }
 522
 523         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 524         if (oplock_request) {
 525                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 526                         ? BATCH_OPLOCK : 0;
 527         }
 528
 529         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 530                 case_state = set_posix_case_semantics(ctx, conn);
 531                 if (!case_state) {
 532                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 533                         goto out;
 534                 }
 535         }
 536
 537         status = filename_convert(ctx,
 538                                 conn,
 539                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 540                                 fname,
 541                                 (create_disposition == FILE_CREATE)
 542                                   ? UCF_PREP_CREATEFILE : 0,
 543                                 NULL,
 544                                 &smb_fname);
 545
 546         TALLOC_FREE(case_state);
 547
 548         if (!NT_STATUS_IS_OK(status)) {
 549                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 550                         reply_botherror(req,
 551                                 NT_STATUS_PATH_NOT_COVERED,
 552                                 ERRSRV, ERRbadpath);
 553                         goto out;
 554                 }
 555                 reply_nterror(req, status);
 556                 goto out;
 557         }
 558
 559         /*
 560          * Bug #6898 - clients using Windows opens should
 561          * never be able to set this attribute into the
 562          * VFS.
 563          */
 564         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 565
 566         status = SMB_VFS_CREATE_FILE(
 567                 conn,                                   /* conn */
 568                 req,                                    /* req */
 569                 root_dir_fid,                           /* root_dir_fid */
 570                 smb_fname,                              /* fname */
 571                 access_mask,                            /* access_mask */
 572                 share_access,                           /* share_access */
 573                 create_disposition,                     /* create_disposition*/
 574                 create_options,                         /* create_options */
 575                 file_attributes,                        /* file_attributes */
 576                 oplock_request,                         /* oplock_request */
 577                 allocation_size,                        /* allocation_size */
 578                 0,                                      /* private_flags */
 579                 NULL,                                   /* sd */
 580                 NULL,                                   /* ea_list */
 581                 &fsp,                                   /* result */
 582                 &info);                                 /* pinfo */
 583
 584         if (!NT_STATUS_IS_OK(status)) {
 585                 if (open_was_deferred(req->sconn, req->mid)) {
 586                         /* We have re-scheduled this call, no error. */
 587                         goto out;
 588                 }
 589                 reply_openerror(req, status);
 590                 goto out;
 591         }
 592
 593         /* Ensure we're pointing at the correct stat struct. */
 594         TALLOC_FREE(smb_fname);
 595         smb_fname = fsp->fsp_name;
 596
 597         /*
 598          * If the caller set the extended oplock request bit
 599          * and we granted one (by whatever means) - set the
 600          * correct bit for extended oplock reply.
 601          */
 602
 603         if (oplock_request &&
 604             (lp_fake_oplocks(SNUM(conn))
 605              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 606
 607                 /*
 608                  * Exclusive oplock granted
 609                  */
 610
 611                 if (flags & REQUEST_BATCH_OPLOCK) {
 612                         oplock_granted = BATCH_OPLOCK_RETURN;
 613                 } else {
 614                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 615                 }
 616         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 617                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 618         } else {
 619                 oplock_granted = NO_OPLOCK_RETURN;
 620         }
 621
 622         file_len = smb_fname->st.st_ex_size;
 623
 624         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 625                 /* This is very strange. We
 626                  * return 50 words, but only set
 627                  * the wcnt to 42 ? It's definitely
 628                  * what happens on the wire....
 629                  */
 630                 reply_outbuf(req, 50, 0);
 631                 SCVAL(req->outbuf,smb_wct,42);
 632         } else {
 633                 reply_outbuf(req, 34, 0);
 634         }
 635
 636         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 637         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 638
 639         p = (char *)req->outbuf + smb_vwv2;
 640
 641         SCVAL(p, 0, oplock_granted);
 642
 643         p++;
 644         SSVAL(p,0,fsp->fnum);
 645         p += 2;
 646         if ((create_disposition == FILE_SUPERSEDE)
 647             && (info == FILE_WAS_OVERWRITTEN)) {
 648                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 649         } else {
 650                 SIVAL(p,0,info);
 651         }
 652         p += 4;
 653
 654         fattr = dos_mode(conn, smb_fname);
 655         if (fattr == 0) {
 656                 fattr = FILE_ATTRIBUTE_NORMAL;
 657         }
 658
 659         /* Deal with other possible opens having a modified
 660            write time. JRA. */
 661         ZERO_STRUCT(write_time_ts);
 662         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
 663         if (!null_timespec(write_time_ts)) {
 664                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
 665         }
 666
 667         /* Create time. */
 668         create_timespec = get_create_timespec(conn, fsp, smb_fname);
 669         a_timespec = smb_fname->st.st_ex_atime;
 670         m_timespec = smb_fname->st.st_ex_mtime;
 671         c_timespec = get_change_timespec(conn, fsp, smb_fname);
 672
 673         if (lp_dos_filetime_resolution(SNUM(conn))) {
 674                 dos_filetime_timespec(&create_timespec);
 675                 dos_filetime_timespec(&a_timespec);
 676                 dos_filetime_timespec(&m_timespec);
 677                 dos_filetime_timespec(&c_timespec);
 678         }
 679
 680         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
 681         p += 8;
 682         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
 683         p += 8;
 684         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
 685         p += 8;
 686         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
 687         p += 8;
 688         SIVAL(p,0,fattr); /* File Attributes. */
 689         p += 4;
 690         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 691         p += 8;
 692         SOFF_T(p,0,file_len);
 693         p += 8;
 694         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 695                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
 696                 size_t num_names = 0;
 697                 unsigned int num_streams = 0;
 698                 struct stream_struct *streams = NULL;
 699
 700                 /* Do we have any EA's ? */
 701                 status = get_ea_names_from_file(ctx, conn, fsp,
 702                                 smb_fname->base_name, NULL, &num_names);
 703                 if (NT_STATUS_IS_OK(status) && num_names) {
 704                         file_status &= ~NO_EAS;
 705                 }
 706                 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, 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 perms = 0;
 720                 p += 25;
 721                 if (fsp->is_directory ||
 722                     can_write_to_file(conn, smb_fname)) {
 723                         perms = FILE_GENERIC_ALL;
 724                 } else {
 725                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 726                 }
 727                 SIVAL(p,0,perms);
 728         }
 729
 730         DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
 731                 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
 732
 733  out:
 734         END_PROFILE(SMBntcreateX);
 735         return;
 736 }
 737
 738 /****************************************************************************
 739  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 740 ****************************************************************************/
 741
 742 static void do_nt_transact_create_pipe(connection_struct *conn,
 743                                        struct smb_request *req,
 744                                        uint16 **ppsetup, uint32 setup_count,
 745                                        char **ppparams, uint32 parameter_count,
 746                                        char **ppdata, uint32 data_count)
 747 {
 748         char *fname = NULL;
 749         char *params = *ppparams;
 750         uint16_t pnum = FNUM_FIELD_INVALID;
 751         char *p = NULL;
 752         NTSTATUS status;
 753         size_t param_len;
 754         uint32 flags;
 755         TALLOC_CTX *ctx = talloc_tos();
 756
 757         /*
 758          * Ensure minimum number of parameters sent.
 759          */
 760
 761         if(parameter_count < 54) {
 762                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 763                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 764                 return;
 765         }
 766
 767         flags = IVAL(params,0);
 768
 769         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
 770                         parameter_count-53, STR_TERMINATE,
 771                         &status);
 772         if (!NT_STATUS_IS_OK(status)) {
 773                 reply_nterror(req, status);
 774                 return;
 775         }
 776
 777         nt_open_pipe(fname, conn, req, &pnum);
 778
 779         if (req->outbuf) {
 780                 /* Error return */
 781                 return;
 782         }
 783
 784         /* Realloc the size of parameters and data we will return */
 785         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 786                 /* Extended response is 32 more byyes. */
 787                 param_len = 101;
 788         } else {
 789                 param_len = 69;
 790         }
 791         params = nttrans_realloc(ppparams, param_len);
 792         if(params == NULL) {
 793                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 794                 return;
 795         }
 796
 797         p = params;
 798         SCVAL(p,0,NO_OPLOCK_RETURN);
 799
 800         p += 2;
 801         SSVAL(p,0,pnum);
 802         p += 2;
 803         SIVAL(p,0,FILE_WAS_OPENED);
 804         p += 8;
 805
 806         p += 32;
 807         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 808         p += 20;
 809         /* File type. */
 810         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 811         /* Device state. */
 812         SSVAL(p,2, 0x5FF); /* ? */
 813         p += 4;
 814
 815         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 816                 p += 25;
 817                 SIVAL(p,0,FILE_GENERIC_ALL);
 818                 /*
 819                  * For pipes W2K3 seems to return
 820                  * 0x12019B next.
 821                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 822                  */
 823                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 824         }
 825
 826         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 827
 828         /* Send the required number of replies */
 829         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 830
 831         return;
 832 }
 833
 834 /*********************************************************************
 835  Windows seems to do canonicalization of inheritance bits. Do the
 836  same.
 837 *********************************************************************/
 838
 839 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
 840 {
 841         bool set_auto_inherited = false;
 842
 843         /*
 844          * We need to filter out the
 845          * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
 846          * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
 847          * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
 848          * when an ACE is inherited. Otherwise we zero these bits out.
 849          * See:
 850          *
 851          * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
 852          *
 853          * for details.
 854          */
 855
 856         if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
 857                         == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
 858                 set_auto_inherited = true;
 859         }
 860
 861         psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
 862         if (set_auto_inherited) {
 863                 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
 864         }
 865 }
 866
 867 /****************************************************************************
 868  Internal fn to set security descriptors.
 869 ****************************************************************************/
 870
 871 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
 872                        uint32_t security_info_sent)
 873 {
 874         NTSTATUS status;
 875
 876         if (!CAN_WRITE(fsp->conn)) {
 877                 return NT_STATUS_ACCESS_DENIED;
 878         }
 879
 880         if (!lp_nt_acl_support(SNUM(fsp->conn))) {
 881                 return NT_STATUS_OK;
 882         }
 883
 884         if (psd->owner_sid == NULL) {
 885                 security_info_sent &= ~SECINFO_OWNER;
 886         }
 887         if (psd->group_sid == NULL) {
 888                 security_info_sent &= ~SECINFO_GROUP;
 889         }
 890
 891         /* Ensure we have at least one thing set. */
 892         if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
 893                 /* Just like W2K3 */
 894                 return NT_STATUS_OK;
 895         }
 896
 897         /* Ensure we have the rights to do this. */
 898         if (security_info_sent & SECINFO_OWNER) {
 899                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 900                         return NT_STATUS_ACCESS_DENIED;
 901                 }
 902         }
 903
 904         if (security_info_sent & SECINFO_GROUP) {
 905                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 906                         return NT_STATUS_ACCESS_DENIED;
 907                 }
 908         }
 909
 910         if (security_info_sent & SECINFO_DACL) {
 911                 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
 912                         return NT_STATUS_ACCESS_DENIED;
 913                 }
 914                 /* Convert all the generic bits. */
 915                 if (psd->dacl) {
 916                         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 917                 }
 918         }
 919
 920         if (security_info_sent & SECINFO_SACL) {
 921                 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
 922                         return NT_STATUS_ACCESS_DENIED;
 923                 }
 924                 /* Convert all the generic bits. */
 925                 if (psd->sacl) {
 926                         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 927                 }
 928         }
 929
 930         canonicalize_inheritance_bits(psd);
 931
 932         if (DEBUGLEVEL >= 10) {
 933                 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
 934                 NDR_PRINT_DEBUG(security_descriptor, psd);
 935         }
 936
 937         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 938
 939         TALLOC_FREE(psd);
 940
 941         return status;
 942 }
 943
 944 /****************************************************************************
 945  Internal fn to set security descriptors from a data blob.
 946 ****************************************************************************/
 947
 948 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
 949                        uint32_t security_info_sent)
 950 {
 951         struct security_descriptor *psd = NULL;
 952         NTSTATUS status;
 953
 954         if (sd_len == 0) {
 955                 return NT_STATUS_INVALID_PARAMETER;
 956         }
 957
 958         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 959
 960         if (!NT_STATUS_IS_OK(status)) {
 961                 return status;
 962         }
 963
 964         return set_sd(fsp, psd, security_info_sent);
 965 }
 966
 967 /****************************************************************************
 968  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
 969 ****************************************************************************/
 970
 971 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
 972 {
 973         struct ea_list *ea_list_head = NULL;
 974         size_t offset = 0;
 975
 976         if (data_size < 4) {
 977                 return NULL;
 978         }
 979
 980         while (offset + 4 <= data_size) {
 981                 size_t next_offset = IVAL(pdata,offset);
 982                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
 983
 984                 if (!eal) {
 985                         return NULL;
 986                 }
 987
 988                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
 989                 if (next_offset == 0) {
 990                         break;
 991                 }
 992
 993                 /* Integer wrap protection for the increment. */
 994                 if (offset + next_offset < offset) {
 995                         break;
 996                 }
 997
 998                 offset += next_offset;
 999
1000                 /* Integer wrap protection for while loop. */
1001                 if (offset + 4 < offset) {
1002                         break;
1003                 }
1004
1005         }
1006
1007         return ea_list_head;
1008 }
1009
1010 /****************************************************************************
1011  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1012 ****************************************************************************/
1013
1014 static void call_nt_transact_create(connection_struct *conn,
1015                                     struct smb_request *req,
1016                                     uint16 **ppsetup, uint32 setup_count,
1017                                     char **ppparams, uint32 parameter_count,
1018                                     char **ppdata, uint32 data_count,
1019                                     uint32 max_data_count)
1020 {
1021         struct smb_filename *smb_fname = NULL;
1022         char *fname = NULL;
1023         char *params = *ppparams;
1024         char *data = *ppdata;
1025         /* Breakout the oplock request bits so we can set the reply bits separately. */
1026         uint32 fattr=0;
1027         off_t file_len = 0;
1028         int info = 0;
1029         files_struct *fsp = NULL;
1030         char *p = NULL;
1031         uint32 flags;
1032         uint32 access_mask;
1033         uint32 file_attributes;
1034         uint32 share_access;
1035         uint32 create_disposition;
1036         uint32 create_options;
1037         uint32 sd_len;
1038         struct security_descriptor *sd = NULL;
1039         uint32 ea_len;
1040         uint16 root_dir_fid;
1041         struct timespec create_timespec;
1042         struct timespec c_timespec;
1043         struct timespec a_timespec;
1044         struct timespec m_timespec;
1045         struct timespec write_time_ts;
1046         struct ea_list *ea_list = NULL;
1047         NTSTATUS status;
1048         size_t param_len;
1049         uint64_t allocation_size;
1050         int oplock_request;
1051         uint8_t oplock_granted;
1052         struct case_semantics_state *case_state = NULL;
1053         TALLOC_CTX *ctx = talloc_tos();
1054
1055         DEBUG(5,("call_nt_transact_create\n"));
1056
1057         /*
1058          * If it's an IPC, use the pipe handler.
1059          */
1060
1061         if (IS_IPC(conn)) {
1062                 if (lp_nt_pipe_support()) {
1063                         do_nt_transact_create_pipe(
1064                                 conn, req,
1065                                 ppsetup, setup_count,
1066                                 ppparams, parameter_count,
1067                                 ppdata, data_count);
1068                         goto out;
1069                 }
1070                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1071                 goto out;
1072         }
1073
1074         /*
1075          * Ensure minimum number of parameters sent.
1076          */
1077
1078         if(parameter_count < 54) {
1079                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1080                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1081                 goto out;
1082         }
1083
1084         flags = IVAL(params,0);
1085         access_mask = IVAL(params,8);
1086         file_attributes = IVAL(params,20);
1087         share_access = IVAL(params,24);
1088         create_disposition = IVAL(params,28);
1089         create_options = IVAL(params,32);
1090         sd_len = IVAL(params,36);
1091         ea_len = IVAL(params,40);
1092         root_dir_fid = (uint16)IVAL(params,4);
1093         allocation_size = BVAL(params,12);
1094
1095         /*
1096          * we need to remove ignored bits when they come directly from the client
1097          * because we reuse some of them for internal stuff
1098          */
1099         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1100
1101         srvstr_get_path(ctx, params, req->flags2, &fname,
1102                         params+53, parameter_count-53,
1103                         STR_TERMINATE, &status);
1104         if (!NT_STATUS_IS_OK(status)) {
1105                 reply_nterror(req, status);
1106                 goto out;
1107         }
1108
1109         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1110                 case_state = set_posix_case_semantics(ctx, conn);
1111                 if (!case_state) {
1112                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1113                         goto out;
1114                 }
1115         }
1116
1117         status = filename_convert(ctx,
1118                                 conn,
1119                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1120                                 fname,
1121                                 (create_disposition == FILE_CREATE)
1122                                   ? UCF_PREP_CREATEFILE : 0,
1123                                 NULL,
1124                                 &smb_fname);
1125
1126         TALLOC_FREE(case_state);
1127
1128         if (!NT_STATUS_IS_OK(status)) {
1129                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1130                         reply_botherror(req,
1131                                 NT_STATUS_PATH_NOT_COVERED,
1132                                 ERRSRV, ERRbadpath);
1133                         goto out;
1134                 }
1135                 reply_nterror(req, status);
1136                 goto out;
1137         }
1138
1139         /* Ensure the data_len is correct for the sd and ea values given. */
1140         if ((ea_len + sd_len > data_count)
1141             || (ea_len > data_count) || (sd_len > data_count)
1142             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1143                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1144                            "%u, data_count = %u\n", (unsigned int)ea_len,
1145                            (unsigned int)sd_len, (unsigned int)data_count));
1146                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1147                 goto out;
1148         }
1149
1150         if (sd_len) {
1151                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1152                            sd_len));
1153
1154                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1155                                              &sd);
1156                 if (!NT_STATUS_IS_OK(status)) {
1157                         DEBUG(10, ("call_nt_transact_create: "
1158                                    "unmarshall_sec_desc failed: %s\n",
1159                                    nt_errstr(status)));
1160                         reply_nterror(req, status);
1161                         goto out;
1162                 }
1163         }
1164
1165         if (ea_len) {
1166                 if (!lp_ea_support(SNUM(conn))) {
1167                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1168                                    "EA's not supported.\n",
1169                                    (unsigned int)ea_len));
1170                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1171                         goto out;
1172                 }
1173
1174                 if (ea_len < 10) {
1175                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1176                                   "too small (should be more than 10)\n",
1177                                   (unsigned int)ea_len ));
1178                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1179                         goto out;
1180                 }
1181
1182                 /* We have already checked that ea_len <= data_count here. */
1183                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1184                                                ea_len);
1185                 if (ea_list == NULL) {
1186                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1187                         goto out;
1188                 }
1189
1190                 if (ea_list_has_invalid_name(ea_list)) {
1191                         /* Realloc the size of parameters and data we will return */
1192                         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1193                                 /* Extended response is 32 more byyes. */
1194                                 param_len = 101;
1195                         } else {
1196                                 param_len = 69;
1197                         }
1198                         params = nttrans_realloc(ppparams, param_len);
1199                         if(params == NULL) {
1200                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1201                                 goto out;
1202                         }
1203
1204                         memset(params, '\0', param_len);
1205                         send_nt_replies(conn, req, STATUS_INVALID_EA_NAME,
1206                                 params, param_len, NULL, 0);
1207                         goto out;
1208                 }
1209         }
1210
1211         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1212         if (oplock_request) {
1213                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1214                         ? BATCH_OPLOCK : 0;
1215         }
1216
1217         /*
1218          * Bug #6898 - clients using Windows opens should
1219          * never be able to set this attribute into the
1220          * VFS.
1221          */
1222         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1223
1224         status = SMB_VFS_CREATE_FILE(
1225                 conn,                                   /* conn */
1226                 req,                                    /* req */
1227                 root_dir_fid,                           /* root_dir_fid */
1228                 smb_fname,                              /* fname */
1229                 access_mask,                            /* access_mask */
1230                 share_access,                           /* share_access */
1231                 create_disposition,                     /* create_disposition*/
1232                 create_options,                         /* create_options */
1233                 file_attributes,                        /* file_attributes */
1234                 oplock_request,                         /* oplock_request */
1235                 allocation_size,                        /* allocation_size */
1236                 0,                                      /* private_flags */
1237                 sd,                                     /* sd */
1238                 ea_list,                                /* ea_list */
1239                 &fsp,                                   /* result */
1240                 &info);                                 /* pinfo */
1241
1242         if(!NT_STATUS_IS_OK(status)) {
1243                 if (open_was_deferred(req->sconn, req->mid)) {
1244                         /* We have re-scheduled this call, no error. */
1245                         return;
1246                 }
1247                 reply_openerror(req, status);
1248                 goto out;
1249         }
1250
1251         /* Ensure we're pointing at the correct stat struct. */
1252         TALLOC_FREE(smb_fname);
1253         smb_fname = fsp->fsp_name;
1254
1255         /*
1256          * If the caller set the extended oplock request bit
1257          * and we granted one (by whatever means) - set the
1258          * correct bit for extended oplock reply.
1259          */
1260
1261         if (oplock_request &&
1262             (lp_fake_oplocks(SNUM(conn))
1263              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1264
1265                 /*
1266                  * Exclusive oplock granted
1267                  */
1268
1269                 if (flags & REQUEST_BATCH_OPLOCK) {
1270                         oplock_granted = BATCH_OPLOCK_RETURN;
1271                 } else {
1272                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1273                 }
1274         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1275                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1276         } else {
1277                 oplock_granted = NO_OPLOCK_RETURN;
1278         }
1279
1280         file_len = smb_fname->st.st_ex_size;
1281
1282         /* Realloc the size of parameters and data we will return */
1283         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1284                 /* Extended response is 32 more byyes. */
1285                 param_len = 101;
1286         } else {
1287                 param_len = 69;
1288         }
1289         params = nttrans_realloc(ppparams, param_len);
1290         if(params == NULL) {
1291                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1292                 goto out;
1293         }
1294
1295         p = params;
1296         SCVAL(p, 0, oplock_granted);
1297
1298         p += 2;
1299         SSVAL(p,0,fsp->fnum);
1300         p += 2;
1301         if ((create_disposition == FILE_SUPERSEDE)
1302             && (info == FILE_WAS_OVERWRITTEN)) {
1303                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1304         } else {
1305                 SIVAL(p,0,info);
1306         }
1307         p += 8;
1308
1309         fattr = dos_mode(conn, smb_fname);
1310         if (fattr == 0) {
1311                 fattr = FILE_ATTRIBUTE_NORMAL;
1312         }
1313
1314         /* Deal with other possible opens having a modified
1315            write time. JRA. */
1316         ZERO_STRUCT(write_time_ts);
1317         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1318         if (!null_timespec(write_time_ts)) {
1319                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1320         }
1321
1322         /* Create time. */
1323         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1324         a_timespec = smb_fname->st.st_ex_atime;
1325         m_timespec = smb_fname->st.st_ex_mtime;
1326         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1327
1328         if (lp_dos_filetime_resolution(SNUM(conn))) {
1329                 dos_filetime_timespec(&create_timespec);
1330                 dos_filetime_timespec(&a_timespec);
1331                 dos_filetime_timespec(&m_timespec);
1332                 dos_filetime_timespec(&c_timespec);
1333         }
1334
1335         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1336         p += 8;
1337         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1338         p += 8;
1339         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1340         p += 8;
1341         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1342         p += 8;
1343         SIVAL(p,0,fattr); /* File Attributes. */
1344         p += 4;
1345         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1346         p += 8;
1347         SOFF_T(p,0,file_len);
1348         p += 8;
1349         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1350                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1351                 size_t num_names = 0;
1352                 unsigned int num_streams = 0;
1353                 struct stream_struct *streams = NULL;
1354
1355                 /* Do we have any EA's ? */
1356                 status = get_ea_names_from_file(ctx, conn, fsp,
1357                                 smb_fname->base_name, NULL, &num_names);
1358                 if (NT_STATUS_IS_OK(status) && num_names) {
1359                         file_status &= ~NO_EAS;
1360                 }
1361                 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
1362                         &num_streams, &streams);
1363                 /* There is always one stream, ::$DATA. */
1364                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1365                         file_status &= ~NO_SUBSTREAMS;
1366                 }
1367                 TALLOC_FREE(streams);
1368                 SSVAL(p,2,file_status);
1369         }
1370         p += 4;
1371         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1372
1373         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1374                 uint32 perms = 0;
1375                 p += 25;
1376                 if (fsp->is_directory ||
1377                     can_write_to_file(conn, smb_fname)) {
1378                         perms = FILE_GENERIC_ALL;
1379                 } else {
1380                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1381                 }
1382                 SIVAL(p,0,perms);
1383         }
1384
1385         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1386                  smb_fname_str_dbg(smb_fname)));
1387
1388         /* Send the required number of replies */
1389         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1390  out:
1391         return;
1392 }
1393
1394 /****************************************************************************
1395  Reply to a NT CANCEL request.
1396  conn POINTER CAN BE NULL HERE !
1397 ****************************************************************************/
1398
1399 void reply_ntcancel(struct smb_request *req)
1400 {
1401         /*
1402          * Go through and cancel any pending change notifies.
1403          */
1404
1405         START_PROFILE(SMBntcancel);
1406         srv_cancel_sign_response(req->sconn);
1407         remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1408         remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1409
1410         DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1411                 (unsigned long long)req->mid));
1412
1413         END_PROFILE(SMBntcancel);
1414         return;
1415 }
1416
1417 /****************************************************************************
1418  Copy a file.
1419 ****************************************************************************/
1420
1421 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1422                                 connection_struct *conn,
1423                                 struct smb_request *req,
1424                                 struct smb_filename *smb_fname_src,
1425                                 struct smb_filename *smb_fname_dst,
1426                                 uint32 attrs)
1427 {
1428         files_struct *fsp1,*fsp2;
1429         uint32 fattr;
1430         int info;
1431         off_t ret=-1;
1432         NTSTATUS status = NT_STATUS_OK;
1433         char *parent;
1434
1435         if (!CAN_WRITE(conn)) {
1436                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1437                 goto out;
1438         }
1439
1440         /* Source must already exist. */
1441         if (!VALID_STAT(smb_fname_src->st)) {
1442                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1443                 goto out;
1444         }
1445
1446         /* Ensure attributes match. */
1447         fattr = dos_mode(conn, smb_fname_src);
1448         if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1449                 status = NT_STATUS_NO_SUCH_FILE;
1450                 goto out;
1451         }
1452
1453         /* Disallow if dst file already exists. */
1454         if (VALID_STAT(smb_fname_dst->st)) {
1455                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1456                 goto out;
1457         }
1458
1459         /* No links from a directory. */
1460         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1461                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1462                 goto out;
1463         }
1464
1465         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1466                   smb_fname_str_dbg(smb_fname_src),
1467                   smb_fname_str_dbg(smb_fname_dst)));
1468
1469         status = SMB_VFS_CREATE_FILE(
1470                 conn,                                   /* conn */
1471                 req,                                    /* req */
1472                 0,                                      /* root_dir_fid */
1473                 smb_fname_src,                          /* fname */
1474                 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1475                         FILE_READ_EA,                   /* access_mask */
1476                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1477                     FILE_SHARE_DELETE),
1478                 FILE_OPEN,                              /* create_disposition*/
1479                 0,                                      /* create_options */
1480                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1481                 NO_OPLOCK,                              /* oplock_request */
1482                 0,                                      /* allocation_size */
1483                 0,                                      /* private_flags */
1484                 NULL,                                   /* sd */
1485                 NULL,                                   /* ea_list */
1486                 &fsp1,                                  /* result */
1487                 &info);                                 /* pinfo */
1488
1489         if (!NT_STATUS_IS_OK(status)) {
1490                 goto out;
1491         }
1492
1493         status = SMB_VFS_CREATE_FILE(
1494                 conn,                                   /* conn */
1495                 req,                                    /* req */
1496                 0,                                      /* root_dir_fid */
1497                 smb_fname_dst,                          /* fname */
1498                 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1499                         FILE_WRITE_EA,                  /* access_mask */
1500                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1501                     FILE_SHARE_DELETE),
1502                 FILE_CREATE,                            /* create_disposition*/
1503                 0,                                      /* create_options */
1504                 fattr,                                  /* file_attributes */
1505                 NO_OPLOCK,                              /* oplock_request */
1506                 0,                                      /* allocation_size */
1507                 0,                                      /* private_flags */
1508                 NULL,                                   /* sd */
1509                 NULL,                                   /* ea_list */
1510                 &fsp2,                                  /* result */
1511                 &info);                                 /* pinfo */
1512
1513         if (!NT_STATUS_IS_OK(status)) {
1514                 close_file(NULL, fsp1, ERROR_CLOSE);
1515                 goto out;
1516         }
1517
1518         if (smb_fname_src->st.st_ex_size) {
1519                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1520         }
1521
1522         /*
1523          * As we are opening fsp1 read-only we only expect
1524          * an error on close on fsp2 if we are out of space.
1525          * Thus we don't look at the error return from the
1526          * close of fsp1.
1527          */
1528         close_file(NULL, fsp1, NORMAL_CLOSE);
1529
1530         /* Ensure the modtime is set correctly on the destination file. */
1531         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1532
1533         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1534
1535         /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1536            creates the file. This isn't the correct thing to do in the copy
1537            case. JRA */
1538         if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1539                             NULL)) {
1540                 status = NT_STATUS_NO_MEMORY;
1541                 goto out;
1542         }
1543         file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1544         TALLOC_FREE(parent);
1545
1546         if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1547                 status = NT_STATUS_DISK_FULL;
1548                 goto out;
1549         }
1550  out:
1551         if (!NT_STATUS_IS_OK(status)) {
1552                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1553                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1554                         smb_fname_str_dbg(smb_fname_dst)));
1555         }
1556
1557         return status;
1558 }
1559
1560 /****************************************************************************
1561  Reply to a NT rename request.
1562 ****************************************************************************/
1563
1564 void reply_ntrename(struct smb_request *req)
1565 {
1566         connection_struct *conn = req->conn;
1567         struct smb_filename *smb_fname_old = NULL;
1568         struct smb_filename *smb_fname_new = NULL;
1569         char *oldname = NULL;
1570         char *newname = NULL;
1571         const char *p;
1572         NTSTATUS status;
1573         bool src_has_wcard = False;
1574         bool dest_has_wcard = False;
1575         uint32 attrs;
1576         uint32_t ucf_flags_src = 0;
1577         uint32_t ucf_flags_dst = 0;
1578         uint16 rename_type;
1579         TALLOC_CTX *ctx = talloc_tos();
1580         bool stream_rename = false;
1581
1582         START_PROFILE(SMBntrename);
1583
1584         if (req->wct < 4) {
1585                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1586                 goto out;
1587         }
1588
1589         attrs = SVAL(req->vwv+0, 0);
1590         rename_type = SVAL(req->vwv+1, 0);
1591
1592         p = (const char *)req->buf + 1;
1593         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1594                                        &status, &src_has_wcard);
1595         if (!NT_STATUS_IS_OK(status)) {
1596                 reply_nterror(req, status);
1597                 goto out;
1598         }
1599
1600         if (ms_has_wild(oldname)) {
1601                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1602                 goto out;
1603         }
1604
1605         p++;
1606         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1607                                        &status, &dest_has_wcard);
1608         if (!NT_STATUS_IS_OK(status)) {
1609                 reply_nterror(req, status);
1610                 goto out;
1611         }
1612
1613         if (!lp_posix_pathnames()) {
1614                 /* The newname must begin with a ':' if the
1615                    oldname contains a ':'. */
1616                 if (strchr_m(oldname, ':')) {
1617                         if (newname[0] != ':') {
1618                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1619                                 goto out;
1620                         }
1621                         stream_rename = true;
1622                 }
1623         }
1624
1625         /*
1626          * If this is a rename operation, allow wildcards and save the
1627          * destination's last component.
1628          */
1629         if (rename_type == RENAME_FLAG_RENAME) {
1630                 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1631                 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1632         }
1633
1634         /* rename_internals() calls unix_convert(), so don't call it here. */
1635         status = filename_convert(ctx, conn,
1636                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1637                                   oldname,
1638                                   ucf_flags_src,
1639                                   NULL,
1640                                   &smb_fname_old);
1641         if (!NT_STATUS_IS_OK(status)) {
1642                 if (NT_STATUS_EQUAL(status,
1643                                     NT_STATUS_PATH_NOT_COVERED)) {
1644                         reply_botherror(req,
1645                                         NT_STATUS_PATH_NOT_COVERED,
1646                                         ERRSRV, ERRbadpath);
1647                         goto out;
1648                 }
1649                 reply_nterror(req, status);
1650                 goto out;
1651         }
1652
1653         status = filename_convert(ctx, conn,
1654                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1655                                   newname,
1656                                   ucf_flags_dst,
1657                                   &dest_has_wcard,
1658                                   &smb_fname_new);
1659         if (!NT_STATUS_IS_OK(status)) {
1660                 if (NT_STATUS_EQUAL(status,
1661                                     NT_STATUS_PATH_NOT_COVERED)) {
1662                         reply_botherror(req,
1663                                         NT_STATUS_PATH_NOT_COVERED,
1664                                         ERRSRV, ERRbadpath);
1665                         goto out;
1666                 }
1667                 reply_nterror(req, status);
1668                 goto out;
1669         }
1670
1671         if (stream_rename) {
1672                 /* smb_fname_new must be the same as smb_fname_old. */
1673                 TALLOC_FREE(smb_fname_new->base_name);
1674                 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1675                                                 smb_fname_old->base_name);
1676                 if (!smb_fname_new->base_name) {
1677                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1678                         goto out;
1679                 }
1680         }
1681
1682         DEBUG(3,("reply_ntrename: %s -> %s\n",
1683                  smb_fname_str_dbg(smb_fname_old),
1684                  smb_fname_str_dbg(smb_fname_new)));
1685
1686         switch(rename_type) {
1687                 case RENAME_FLAG_RENAME:
1688                         status = rename_internals(ctx, conn, req,
1689                                                   smb_fname_old, smb_fname_new,
1690                                                   attrs, False, src_has_wcard,
1691                                                   dest_has_wcard,
1692                                                   DELETE_ACCESS);
1693                         break;
1694                 case RENAME_FLAG_HARD_LINK:
1695                         if (src_has_wcard || dest_has_wcard) {
1696                                 /* No wildcards. */
1697                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1698                         } else {
1699                                 status = hardlink_internals(ctx, conn,
1700                                                             req,
1701                                                             false,
1702                                                             smb_fname_old,
1703                                                             smb_fname_new);
1704                         }
1705                         break;
1706                 case RENAME_FLAG_COPY:
1707                         if (src_has_wcard || dest_has_wcard) {
1708                                 /* No wildcards. */
1709                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1710                         } else {
1711                                 status = copy_internals(ctx, conn, req,
1712                                                         smb_fname_old,
1713                                                         smb_fname_new,
1714                                                         attrs);
1715                         }
1716                         break;
1717                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1718                         status = NT_STATUS_INVALID_PARAMETER;
1719                         break;
1720                 default:
1721                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1722                         break;
1723         }
1724
1725         if (!NT_STATUS_IS_OK(status)) {
1726                 if (open_was_deferred(req->sconn, req->mid)) {
1727                         /* We have re-scheduled this call. */
1728                         goto out;
1729                 }
1730
1731                 reply_nterror(req, status);
1732                 goto out;
1733         }
1734
1735         reply_outbuf(req, 0, 0);
1736  out:
1737         END_PROFILE(SMBntrename);
1738         return;
1739 }
1740
1741 /****************************************************************************
1742  Reply to a notify change - queue the request and
1743  don't allow a directory to be opened.
1744 ****************************************************************************/
1745
1746 static void smbd_smb1_notify_reply(struct smb_request *req,
1747                                    NTSTATUS error_code,
1748                                    uint8_t *buf, size_t len)
1749 {
1750         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1751 }
1752
1753 static void call_nt_transact_notify_change(connection_struct *conn,
1754                                            struct smb_request *req,
1755                                            uint16 **ppsetup,
1756                                            uint32 setup_count,
1757                                            char **ppparams,
1758                                            uint32 parameter_count,
1759                                            char **ppdata, uint32 data_count,
1760                                            uint32 max_data_count,
1761                                            uint32 max_param_count)
1762 {
1763         uint16 *setup = *ppsetup;
1764         files_struct *fsp;
1765         uint32 filter;
1766         NTSTATUS status;
1767         bool recursive;
1768
1769         if(setup_count < 6) {
1770                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1771                 return;
1772         }
1773
1774         fsp = file_fsp(req, SVAL(setup,4));
1775         filter = IVAL(setup, 0);
1776         recursive = (SVAL(setup, 6) != 0) ? True : False;
1777
1778         DEBUG(3,("call_nt_transact_notify_change\n"));
1779
1780         if(!fsp) {
1781                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1782                 return;
1783         }
1784
1785         {
1786                 char *filter_string;
1787
1788                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1789                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1790                         return;
1791                 }
1792
1793                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1794                          "called on %s, filter = %s, recursive = %d\n",
1795                          fsp_str_dbg(fsp), filter_string, recursive));
1796
1797                 TALLOC_FREE(filter_string);
1798         }
1799
1800         if((!fsp->is_directory) || (conn != fsp->conn)) {
1801                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1802                 return;
1803         }
1804
1805         if (fsp->notify == NULL) {
1806
1807                 status = change_notify_create(fsp, filter, recursive);
1808
1809                 if (!NT_STATUS_IS_OK(status)) {
1810                         DEBUG(10, ("change_notify_create returned %s\n",
1811                                    nt_errstr(status)));
1812                         reply_nterror(req, status);
1813                         return;
1814                 }
1815         }
1816
1817         if (change_notify_fsp_has_changes(fsp)) {
1818
1819                 /*
1820                  * We've got changes pending, respond immediately
1821                  */
1822
1823                 /*
1824                  * TODO: write a torture test to check the filtering behaviour
1825                  * here.
1826                  */
1827
1828                 change_notify_reply(req,
1829                                     NT_STATUS_OK,
1830                                     max_param_count,
1831                                     fsp->notify,
1832                                     smbd_smb1_notify_reply);
1833
1834                 /*
1835                  * change_notify_reply() above has independently sent its
1836                  * results
1837                  */
1838                 return;
1839         }
1840
1841         /*
1842          * No changes pending, queue the request
1843          */
1844
1845         status = change_notify_add_request(req,
1846                         max_param_count,
1847                         filter,
1848                         recursive, fsp,
1849                         smbd_smb1_notify_reply);
1850         if (!NT_STATUS_IS_OK(status)) {
1851                 reply_nterror(req, status);
1852         }
1853         return;
1854 }
1855
1856 /****************************************************************************
1857  Reply to an NT transact rename command.
1858 ****************************************************************************/
1859
1860 static void call_nt_transact_rename(connection_struct *conn,
1861                                     struct smb_request *req,
1862                                     uint16 **ppsetup, uint32 setup_count,
1863                                     char **ppparams, uint32 parameter_count,
1864                                     char **ppdata, uint32 data_count,
1865                                     uint32 max_data_count)
1866 {
1867         char *params = *ppparams;
1868         char *new_name = NULL;
1869         files_struct *fsp = NULL;
1870         bool dest_has_wcard = False;
1871         NTSTATUS status;
1872         TALLOC_CTX *ctx = talloc_tos();
1873
1874         if(parameter_count < 5) {
1875                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1876                 return;
1877         }
1878
1879         fsp = file_fsp(req, SVAL(params, 0));
1880         if (!check_fsp(conn, req, fsp)) {
1881                 return;
1882         }
1883         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1884                               parameter_count - 4,
1885                               STR_TERMINATE, &status, &dest_has_wcard);
1886         if (!NT_STATUS_IS_OK(status)) {
1887                 reply_nterror(req, status);
1888                 return;
1889         }
1890
1891         /*
1892          * W2K3 ignores this request as the RAW-RENAME test
1893          * demonstrates, so we do.
1894          */
1895         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1896
1897         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1898                  fsp_str_dbg(fsp), new_name));
1899
1900         return;
1901 }
1902
1903 /******************************************************************************
1904  Fake up a completely empty SD.
1905 *******************************************************************************/
1906
1907 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1908 {
1909         size_t sd_size;
1910
1911         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1912         if(!*ppsd) {
1913                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1914                 return NT_STATUS_NO_MEMORY;
1915         }
1916
1917         return NT_STATUS_OK;
1918 }
1919
1920 /****************************************************************************
1921  Reply to query a security descriptor.
1922  Callable from SMB2 and SMB2.
1923  If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1924  the required size.
1925 ****************************************************************************/
1926
1927 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1928                                         TALLOC_CTX *mem_ctx,
1929                                         files_struct *fsp,
1930                                         uint32_t security_info_wanted,
1931                                         uint32_t max_data_count,
1932                                         uint8_t **ppmarshalled_sd,
1933                                         size_t *psd_size)
1934 {
1935         NTSTATUS status;
1936         struct security_descriptor *psd = NULL;
1937         TALLOC_CTX *frame = talloc_stackframe();
1938
1939         /*
1940          * Get the permissions to return.
1941          */
1942
1943         if ((security_info_wanted & SECINFO_SACL) &&
1944                         !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1945                 DEBUG(10, ("Access to SACL denied.\n"));
1946                 TALLOC_FREE(frame);
1947                 return NT_STATUS_ACCESS_DENIED;
1948         }
1949
1950         if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1951                         !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1952                 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1953                 TALLOC_FREE(frame);
1954                 return NT_STATUS_ACCESS_DENIED;
1955         }
1956
1957         if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1958                         SECINFO_GROUP|SECINFO_SACL)) {
1959                 /* Don't return SECINFO_LABEL if anything else was
1960                    requested. See bug #8458. */
1961                 security_info_wanted &= ~SECINFO_LABEL;
1962         }
1963
1964         if (!lp_nt_acl_support(SNUM(conn))) {
1965                 status = get_null_nt_acl(frame, &psd);
1966         } else if (security_info_wanted & SECINFO_LABEL) {
1967                 /* Like W2K3 return a null object. */
1968                 status = get_null_nt_acl(frame, &psd);
1969         } else {
1970                 status = SMB_VFS_FGET_NT_ACL(
1971                         fsp, security_info_wanted, frame, &psd);
1972         }
1973         if (!NT_STATUS_IS_OK(status)) {
1974                 TALLOC_FREE(frame);
1975                 return status;
1976         }
1977
1978         if (!(security_info_wanted & SECINFO_OWNER)) {
1979                 psd->owner_sid = NULL;
1980         }
1981         if (!(security_info_wanted & SECINFO_GROUP)) {
1982                 psd->group_sid = NULL;
1983         }
1984         if (!(security_info_wanted & SECINFO_DACL)) {
1985                 psd->type &= ~SEC_DESC_DACL_PRESENT;
1986                 psd->dacl = NULL;
1987         }
1988         if (!(security_info_wanted & SECINFO_SACL)) {
1989                 psd->type &= ~SEC_DESC_SACL_PRESENT;
1990                 psd->sacl = NULL;
1991         }
1992
1993         /* If the SACL/DACL is NULL, but was requested, we mark that it is
1994          * present in the reply to match Windows behavior */
1995         if (psd->sacl == NULL &&
1996             security_info_wanted & SECINFO_SACL)
1997                 psd->type |= SEC_DESC_SACL_PRESENT;
1998         if (psd->dacl == NULL &&
1999             security_info_wanted & SECINFO_DACL)
2000                 psd->type |= SEC_DESC_DACL_PRESENT;
2001
2002         if (security_info_wanted & SECINFO_LABEL) {
2003                 /* Like W2K3 return a null object. */
2004                 psd->owner_sid = NULL;
2005                 psd->group_sid = NULL;
2006                 psd->dacl = NULL;
2007                 psd->sacl = NULL;
2008                 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
2009         }
2010
2011         *psd_size = ndr_size_security_descriptor(psd, 0);
2012
2013         DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
2014                 (unsigned long)*psd_size));
2015
2016         if (DEBUGLEVEL >= 10) {
2017                 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
2018                           fsp_str_dbg(fsp)));
2019                 NDR_PRINT_DEBUG(security_descriptor, psd);
2020         }
2021
2022         if (max_data_count < *psd_size) {
2023                 TALLOC_FREE(frame);
2024                 return NT_STATUS_BUFFER_TOO_SMALL;
2025         }
2026
2027         status = marshall_sec_desc(mem_ctx, psd,
2028                                    ppmarshalled_sd, psd_size);
2029
2030         if (!NT_STATUS_IS_OK(status)) {
2031                 TALLOC_FREE(frame);
2032                 return status;
2033         }
2034
2035         TALLOC_FREE(frame);
2036         return NT_STATUS_OK;
2037 }
2038
2039 /****************************************************************************
2040  SMB1 reply to query a security descriptor.
2041 ****************************************************************************/
2042
2043 static void call_nt_transact_query_security_desc(connection_struct *conn,
2044                                                  struct smb_request *req,
2045                                                  uint16 **ppsetup,
2046                                                  uint32 setup_count,
2047                                                  char **ppparams,
2048                                                  uint32 parameter_count,
2049                                                  char **ppdata,
2050                                                  uint32 data_count,
2051                                                  uint32 max_data_count)
2052 {
2053         char *params = *ppparams;
2054         char *data = *ppdata;
2055         size_t sd_size = 0;
2056         uint32 security_info_wanted;
2057         files_struct *fsp = NULL;
2058         NTSTATUS status;
2059         uint8_t *marshalled_sd = NULL;
2060
2061         if(parameter_count < 8) {
2062                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2063                 return;
2064         }
2065
2066         fsp = file_fsp(req, SVAL(params,0));
2067         if(!fsp) {
2068                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2069                 return;
2070         }
2071
2072         security_info_wanted = IVAL(params,4);
2073
2074         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2075                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2076                  (unsigned int)security_info_wanted));
2077
2078         params = nttrans_realloc(ppparams, 4);
2079         if(params == NULL) {
2080                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2081                 return;
2082         }
2083
2084         /*
2085          * Get the permissions to return.
2086          */
2087
2088         status = smbd_do_query_security_desc(conn,
2089                                         talloc_tos(),
2090                                         fsp,
2091                                         security_info_wanted,
2092                                         max_data_count,
2093                                         &marshalled_sd,
2094                                         &sd_size);
2095
2096         if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2097                 SIVAL(params,0,(uint32_t)sd_size);
2098                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2099                         params, 4, NULL, 0);
2100                 return;
2101         }
2102
2103         if (!NT_STATUS_IS_OK(status)) {
2104                 reply_nterror(req, status);
2105                 return;
2106         }
2107
2108         SMB_ASSERT(sd_size > 0);
2109
2110         SIVAL(params,0,(uint32_t)sd_size);
2111
2112         if (max_data_count < sd_size) {
2113                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2114                                 params, 4, NULL, 0);
2115                 return;
2116         }
2117
2118         /*
2119          * Allocate the data we will return.
2120          */
2121
2122         data = nttrans_realloc(ppdata, sd_size);
2123         if(data == NULL) {
2124                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2125                 return;
2126         }
2127
2128         memcpy(data, marshalled_sd, sd_size);
2129
2130         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2131
2132         return;
2133 }
2134
2135 /****************************************************************************
2136  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2137 ****************************************************************************/
2138
2139 static void call_nt_transact_set_security_desc(connection_struct *conn,
2140                                                struct smb_request *req,
2141                                                uint16 **ppsetup,
2142                                                uint32 setup_count,
2143                                                char **ppparams,
2144                                                uint32 parameter_count,
2145                                                char **ppdata,
2146                                                uint32 data_count,
2147                                                uint32 max_data_count)
2148 {
2149         char *params= *ppparams;
2150         char *data = *ppdata;
2151         files_struct *fsp = NULL;
2152         uint32 security_info_sent = 0;
2153         NTSTATUS status;
2154
2155         if(parameter_count < 8) {
2156                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2157                 return;
2158         }
2159
2160         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2161                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2162                 return;
2163         }
2164
2165         if (!CAN_WRITE(fsp->conn)) {
2166                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2167                 return;
2168         }
2169
2170         if(!lp_nt_acl_support(SNUM(conn))) {
2171                 goto done;
2172         }
2173
2174         security_info_sent = IVAL(params,4);
2175
2176         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2177                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2178
2179         if (data_count == 0) {
2180                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2181                 return;
2182         }
2183
2184         status = set_sd_blob(fsp, (uint8 *)data, data_count, security_info_sent);
2185
2186         if (!NT_STATUS_IS_OK(status)) {
2187                 reply_nterror(req, status);
2188                 return;
2189         }
2190
2191   done:
2192         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2193         return;
2194 }
2195
2196 /****************************************************************************
2197  Reply to NT IOCTL
2198 ****************************************************************************/
2199
2200 static void call_nt_transact_ioctl(connection_struct *conn,
2201                                    struct smb_request *req,
2202                                    uint16 **ppsetup, uint32 setup_count,
2203                                    char **ppparams, uint32 parameter_count,
2204                                    char **ppdata, uint32 data_count,
2205                                    uint32 max_data_count)
2206 {
2207         NTSTATUS status;
2208         uint32 function;
2209         uint16 fidnum;
2210         files_struct *fsp;
2211         uint8 isFSctl;
2212         uint8 compfilter;
2213         char *out_data = NULL;
2214         uint32 out_data_len = 0;
2215         char *pdata = *ppdata;
2216         TALLOC_CTX *ctx = talloc_tos();
2217
2218         if (setup_count != 8) {
2219                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2220                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2221                 return;
2222         }
2223
2224         function = IVAL(*ppsetup, 0);
2225         fidnum = SVAL(*ppsetup, 4);
2226         isFSctl = CVAL(*ppsetup, 6);
2227         compfilter = CVAL(*ppsetup, 7);
2228
2229         DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2230                  function, fidnum, isFSctl, compfilter));
2231
2232         fsp=file_fsp(req, fidnum);
2233
2234         /*
2235          * We don't really implement IOCTLs, especially on files.
2236          */
2237         if (!isFSctl) {
2238                 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2239                         isFSctl));
2240                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2241                 return;
2242         }
2243
2244         /* Has to be for an open file! */
2245         if (!check_fsp_open(conn, req, fsp)) {
2246                 return;
2247         }
2248
2249         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2250
2251         /*
2252          * out_data might be allocated by the VFS module, but talloc should be
2253          * used, and should be cleaned up when the request ends.
2254          */
2255         status = SMB_VFS_FSCTL(fsp,
2256                                ctx,
2257                                function,
2258                                req->flags2,
2259                                (uint8_t *)pdata,
2260                                data_count,
2261                                (uint8_t **)&out_data,
2262                                max_data_count,
2263                                &out_data_len);
2264         if (!NT_STATUS_IS_OK(status)) {
2265                 reply_nterror(req, status);
2266         } else {
2267                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2268         }
2269 }
2270
2271
2272 #ifdef HAVE_SYS_QUOTAS
2273 /****************************************************************************
2274  Reply to get user quota
2275 ****************************************************************************/
2276
2277 static void call_nt_transact_get_user_quota(connection_struct *conn,
2278                                             struct smb_request *req,
2279                                             uint16 **ppsetup,
2280                                             uint32 setup_count,
2281                                             char **ppparams,
2282                                             uint32 parameter_count,
2283                                             char **ppdata,
2284                                             uint32 data_count,
2285                                             uint32 max_data_count)
2286 {
2287         NTSTATUS nt_status = NT_STATUS_OK;
2288         char *params = *ppparams;
2289         char *pdata = *ppdata;
2290         char *entry;
2291         int data_len=0,param_len=0;
2292         int qt_len=0;
2293         int entry_len = 0;
2294         files_struct *fsp = NULL;
2295         uint16 level = 0;
2296         size_t sid_len;
2297         struct dom_sid sid;
2298         bool start_enum = True;
2299         SMB_NTQUOTA_STRUCT qt;
2300         SMB_NTQUOTA_LIST *tmp_list;
2301         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2302
2303         ZERO_STRUCT(qt);
2304
2305         /* access check */
2306         if (get_current_uid(conn) != 0) {
2307                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2308                          "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2309                          conn->session_info->unix_info->unix_name));
2310                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2311                 return;
2312         }
2313
2314         /*
2315          * Ensure minimum number of parameters sent.
2316          */
2317
2318         if (parameter_count < 4) {
2319                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2320                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2321                 return;
2322         }
2323
2324         /* maybe we can check the quota_fnum */
2325         fsp = file_fsp(req, SVAL(params,0));
2326         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2327                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2328                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2329                 return;
2330         }
2331
2332         /* the NULL pointer checking for fsp->fake_file_handle->pd
2333          * is done by CHECK_NTQUOTA_HANDLE_OK()
2334          */
2335         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2336
2337         level = SVAL(params,2);
2338
2339         /* unknown 12 bytes leading in params */
2340
2341         switch (level) {
2342                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2343                         /* seems that we should continue with the enum here --metze */
2344
2345                         if (qt_handle->quota_list!=NULL &&
2346                             qt_handle->tmp_list==NULL) {
2347
2348                                 /* free the list */
2349                                 free_ntquota_list(&(qt_handle->quota_list));
2350
2351                                 /* Realloc the size of parameters and data we will return */
2352                                 param_len = 4;
2353                                 params = nttrans_realloc(ppparams, param_len);
2354                                 if(params == NULL) {
2355                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2356                                         return;
2357                                 }
2358
2359                                 data_len = 0;
2360                                 SIVAL(params,0,data_len);
2361
2362                                 break;
2363                         }
2364
2365                         start_enum = False;
2366
2367                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2368
2369                         if (qt_handle->quota_list==NULL &&
2370                                 qt_handle->tmp_list==NULL) {
2371                                 start_enum = True;
2372                         }
2373
2374                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2375                                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2376                                 return;
2377                         }
2378
2379                         /* Realloc the size of parameters and data we will return */
2380                         param_len = 4;
2381                         params = nttrans_realloc(ppparams, param_len);
2382                         if(params == NULL) {
2383                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2384                                 return;
2385                         }
2386
2387                         /* we should not trust the value in max_data_count*/
2388                         max_data_count = MIN(max_data_count,2048);
2389
2390                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2391                         if(pdata == NULL) {
2392                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2393                                 return;
2394                         }
2395
2396                         entry = pdata;
2397
2398                         /* set params Size of returned Quota Data 4 bytes*/
2399                         /* but set it later when we know it */
2400
2401                         /* for each entry push the data */
2402
2403                         if (start_enum) {
2404                                 qt_handle->tmp_list = qt_handle->quota_list;
2405                         }
2406
2407                         tmp_list = qt_handle->tmp_list;
2408
2409                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2410                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2411
2412                                 sid_len = ndr_size_dom_sid(
2413                                         &tmp_list->quotas->sid, 0);
2414                                 entry_len = 40 + sid_len;
2415
2416                                 /* nextoffset entry 4 bytes */
2417                                 SIVAL(entry,0,entry_len);
2418
2419                                 /* then the len of the SID 4 bytes */
2420                                 SIVAL(entry,4,sid_len);
2421
2422                                 /* unknown data 8 bytes uint64_t */
2423                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2424
2425                                 /* the used disk space 8 bytes uint64_t */
2426                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2427
2428                                 /* the soft quotas 8 bytes uint64_t */
2429                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2430
2431                                 /* the hard quotas 8 bytes uint64_t */
2432                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2433
2434                                 /* and now the SID */
2435                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2436                         }
2437
2438                         qt_handle->tmp_list = tmp_list;
2439
2440                         /* overwrite the offset of the last entry */
2441                         SIVAL(entry-entry_len,0,0);
2442
2443                         data_len = 4+qt_len;
2444                         /* overwrite the params quota_data_len */
2445                         SIVAL(params,0,data_len);
2446
2447                         break;
2448
2449                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2450
2451                         /* unknown 4 bytes IVAL(pdata,0) */
2452
2453                         if (data_count < 8) {
2454                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2455                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2456                                 return;
2457                         }
2458
2459                         sid_len = IVAL(pdata,4);
2460                         /* Ensure this is less than 1mb. */
2461                         if (sid_len > (1024*1024)) {
2462                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2463                                 return;
2464                         }
2465
2466                         if (data_count < 8+sid_len) {
2467                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2468                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2469                                 return;
2470                         }
2471
2472                         data_len = 4+40+sid_len;
2473
2474                         if (max_data_count < data_len) {
2475                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2476                                         max_data_count, data_len));
2477                                 param_len = 4;
2478                                 SIVAL(params,0,data_len);
2479                                 data_len = 0;
2480                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2481                                 break;
2482                         }
2483
2484                         if (!sid_parse(pdata+8,sid_len,&sid)) {
2485                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2486                                 return;
2487                         }
2488
2489                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2490                                 ZERO_STRUCT(qt);
2491                                 /*
2492                                  * we have to return zero's in all fields
2493                                  * instead of returning an error here
2494                                  * --metze
2495                                  */
2496                         }
2497
2498                         /* Realloc the size of parameters and data we will return */
2499                         param_len = 4;
2500                         params = nttrans_realloc(ppparams, param_len);
2501                         if(params == NULL) {
2502                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2503                                 return;
2504                         }
2505
2506                         pdata = nttrans_realloc(ppdata, data_len);
2507                         if(pdata == NULL) {
2508                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2509                                 return;
2510                         }
2511
2512                         entry = pdata;
2513
2514                         /* set params Size of returned Quota Data 4 bytes*/
2515                         SIVAL(params,0,data_len);
2516
2517                         /* nextoffset entry 4 bytes */
2518                         SIVAL(entry,0,0);
2519
2520                         /* then the len of the SID 4 bytes */
2521                         SIVAL(entry,4,sid_len);
2522
2523                         /* unknown data 8 bytes uint64_t */
2524                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2525
2526                         /* the used disk space 8 bytes uint64_t */
2527                         SBIG_UINT(entry,16,qt.usedspace);
2528
2529                         /* the soft quotas 8 bytes uint64_t */
2530                         SBIG_UINT(entry,24,qt.softlim);
2531
2532                         /* the hard quotas 8 bytes uint64_t */
2533                         SBIG_UINT(entry,32,qt.hardlim);
2534
2535                         /* and now the SID */
2536                         sid_linearize(entry+40, sid_len, &sid);
2537
2538                         break;
2539
2540                 default:
2541                         DEBUG(0, ("do_nt_transact_get_user_quota: %s: unknown "
2542                                   "level 0x%04hX\n",
2543                                   fsp_fnum_dbg(fsp), level));
2544                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2545                         return;
2546                         break;
2547         }
2548
2549         send_nt_replies(conn, req, nt_status, params, param_len,
2550                         pdata, data_len);
2551 }
2552
2553 /****************************************************************************
2554  Reply to set user quota
2555 ****************************************************************************/
2556
2557 static void call_nt_transact_set_user_quota(connection_struct *conn,
2558                                             struct smb_request *req,
2559                                             uint16 **ppsetup,
2560                                             uint32 setup_count,
2561                                             char **ppparams,
2562                                             uint32 parameter_count,
2563                                             char **ppdata,
2564                                             uint32 data_count,
2565                                             uint32 max_data_count)
2566 {
2567         char *params = *ppparams;
2568         char *pdata = *ppdata;
2569         int data_len=0,param_len=0;
2570         SMB_NTQUOTA_STRUCT qt;
2571         size_t sid_len;
2572         struct dom_sid sid;
2573         files_struct *fsp = NULL;
2574
2575         ZERO_STRUCT(qt);
2576
2577         /* access check */
2578         if (get_current_uid(conn) != 0) {
2579                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2580                          "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2581                          conn->session_info->unix_info->unix_name));
2582                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2583                 return;
2584         }
2585
2586         /*
2587          * Ensure minimum number of parameters sent.
2588          */
2589
2590         if (parameter_count < 2) {
2591                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2592                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2593                 return;
2594         }
2595
2596         /* maybe we can check the quota_fnum */
2597         fsp = file_fsp(req, SVAL(params,0));
2598         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2599                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2600                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2601                 return;
2602         }
2603
2604         if (data_count < 40) {
2605                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2606                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2607                 return;
2608         }
2609
2610         /* offset to next quota record.
2611          * 4 bytes IVAL(pdata,0)
2612          * unused here...
2613          */
2614
2615         /* sid len */
2616         sid_len = IVAL(pdata,4);
2617
2618         if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2619                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2620                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2621                 return;
2622         }
2623
2624         /* unknown 8 bytes in pdata
2625          * maybe its the change time in NTTIME
2626          */
2627
2628         /* the used space 8 bytes (uint64_t)*/
2629         qt.usedspace = BVAL(pdata,16);
2630
2631         /* the soft quotas 8 bytes (uint64_t)*/
2632         qt.softlim = BVAL(pdata,24);
2633
2634         /* the hard quotas 8 bytes (uint64_t)*/
2635         qt.hardlim = BVAL(pdata,32);
2636
2637         if (!sid_parse(pdata+40,sid_len,&sid)) {
2638                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2639                 return;
2640         }
2641
2642         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2643
2644         /* 44 unknown bytes left... */
2645
2646         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2647                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2648                 return;
2649         }
2650
2651         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2652                         pdata, data_len);
2653 }
2654 #endif /* HAVE_SYS_QUOTAS */
2655
2656 static void handle_nttrans(connection_struct *conn,
2657                            struct trans_state *state,
2658                            struct smb_request *req)
2659 {
2660         if (get_Protocol() >= PROTOCOL_NT1) {
2661                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2662                 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2663         }
2664
2665
2666         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2667
2668         /* Now we must call the relevant NT_TRANS function */
2669         switch(state->call) {
2670                 case NT_TRANSACT_CREATE:
2671                 {
2672                         START_PROFILE(NT_transact_create);
2673                         call_nt_transact_create(
2674                                 conn, req,
2675                                 &state->setup, state->setup_count,
2676                                 &state->param, state->total_param,
2677                                 &state->data, state->total_data,
2678                                 state->max_data_return);
2679                         END_PROFILE(NT_transact_create);
2680                         break;
2681                 }
2682
2683                 case NT_TRANSACT_IOCTL:
2684                 {
2685                         START_PROFILE(NT_transact_ioctl);
2686                         call_nt_transact_ioctl(
2687                                 conn, req,
2688                                 &state->setup, state->setup_count,
2689                                 &state->param, state->total_param,
2690                                 &state->data, state->total_data,
2691                                 state->max_data_return);
2692                         END_PROFILE(NT_transact_ioctl);
2693                         break;
2694                 }
2695
2696                 case NT_TRANSACT_SET_SECURITY_DESC:
2697                 {
2698                         START_PROFILE(NT_transact_set_security_desc);
2699                         call_nt_transact_set_security_desc(
2700                                 conn, req,
2701                                 &state->setup, state->setup_count,
2702                                 &state->param, state->total_param,
2703                                 &state->data, state->total_data,
2704                                 state->max_data_return);
2705                         END_PROFILE(NT_transact_set_security_desc);
2706                         break;
2707                 }
2708
2709                 case NT_TRANSACT_NOTIFY_CHANGE:
2710                 {
2711                         START_PROFILE(NT_transact_notify_change);
2712                         call_nt_transact_notify_change(
2713                                 conn, req,
2714                                 &state->setup, state->setup_count,
2715                                 &state->param, state->total_param,
2716                                 &state->data, state->total_data,
2717                                 state->max_data_return,
2718                                 state->max_param_return);
2719                         END_PROFILE(NT_transact_notify_change);
2720                         break;
2721                 }
2722
2723                 case NT_TRANSACT_RENAME:
2724                 {
2725                         START_PROFILE(NT_transact_rename);
2726                         call_nt_transact_rename(
2727                                 conn, req,
2728                                 &state->setup, state->setup_count,
2729                                 &state->param, state->total_param,
2730                                 &state->data, state->total_data,
2731                                 state->max_data_return);
2732                         END_PROFILE(NT_transact_rename);
2733                         break;
2734                 }
2735
2736                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2737                 {
2738                         START_PROFILE(NT_transact_query_security_desc);
2739                         call_nt_transact_query_security_desc(
2740                                 conn, req,
2741                                 &state->setup, state->setup_count,
2742                                 &state->param, state->total_param,
2743                                 &state->data, state->total_data,
2744                                 state->max_data_return);
2745                         END_PROFILE(NT_transact_query_security_desc);
2746                         break;
2747                 }
2748
2749 #ifdef HAVE_SYS_QUOTAS
2750                 case NT_TRANSACT_GET_USER_QUOTA:
2751                 {
2752                         START_PROFILE(NT_transact_get_user_quota);
2753                         call_nt_transact_get_user_quota(
2754                                 conn, req,
2755                                 &state->setup, state->setup_count,
2756                                 &state->param, state->total_param,
2757                                 &state->data, state->total_data,
2758                                 state->max_data_return);
2759                         END_PROFILE(NT_transact_get_user_quota);
2760                         break;
2761                 }
2762
2763                 case NT_TRANSACT_SET_USER_QUOTA:
2764                 {
2765                         START_PROFILE(NT_transact_set_user_quota);
2766                         call_nt_transact_set_user_quota(
2767                                 conn, req,
2768                                 &state->setup, state->setup_count,
2769                                 &state->param, state->total_param,
2770                                 &state->data, state->total_data,
2771                                 state->max_data_return);
2772                         END_PROFILE(NT_transact_set_user_quota);
2773                         break;
2774                 }
2775 #endif /* HAVE_SYS_QUOTAS */
2776
2777                 default:
2778                         /* Error in request */
2779                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2780                                  "nttrans call\n", state->call));
2781                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2782                         return;
2783         }
2784         return;
2785 }
2786
2787 /****************************************************************************
2788  Reply to a SMBNTtrans.
2789 ****************************************************************************/
2790
2791 void reply_nttrans(struct smb_request *req)
2792 {
2793         connection_struct *conn = req->conn;
2794         uint32_t pscnt;
2795         uint32_t psoff;
2796         uint32_t dscnt;
2797         uint32_t dsoff;
2798         uint16 function_code;
2799         NTSTATUS result;
2800         struct trans_state *state;
2801
2802         START_PROFILE(SMBnttrans);
2803
2804         if (req->wct < 19) {
2805                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2806                 END_PROFILE(SMBnttrans);
2807                 return;
2808         }
2809
2810         pscnt = IVAL(req->vwv+9, 1);
2811         psoff = IVAL(req->vwv+11, 1);
2812         dscnt = IVAL(req->vwv+13, 1);
2813         dsoff = IVAL(req->vwv+15, 1);
2814         function_code = SVAL(req->vwv+18, 0);
2815
2816         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2817                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2818                 END_PROFILE(SMBnttrans);
2819                 return;
2820         }
2821
2822         result = allow_new_trans(conn->pending_trans, req->mid);
2823         if (!NT_STATUS_IS_OK(result)) {
2824                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2825                 reply_nterror(req, result);
2826                 END_PROFILE(SMBnttrans);
2827                 return;
2828         }
2829
2830         if ((state = talloc(conn, struct trans_state)) == NULL) {
2831                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2832                 END_PROFILE(SMBnttrans);
2833                 return;
2834         }
2835
2836         state->cmd = SMBnttrans;
2837
2838         state->mid = req->mid;
2839         state->vuid = req->vuid;
2840         state->total_data = IVAL(req->vwv+3, 1);
2841         state->data = NULL;
2842         state->total_param = IVAL(req->vwv+1, 1);
2843         state->param = NULL;
2844         state->max_data_return = IVAL(req->vwv+7, 1);
2845         state->max_param_return = IVAL(req->vwv+5, 1);
2846
2847         /* setup count is in *words* */
2848         state->setup_count = 2*CVAL(req->vwv+17, 1);
2849         state->setup = NULL;
2850         state->call = function_code;
2851
2852         DEBUG(10, ("num_setup=%u, "
2853                    "param_total=%u, this_param=%u, max_param=%u, "
2854                    "data_total=%u, this_data=%u, max_data=%u, "
2855                    "param_offset=%u, data_offset=%u\n",
2856                    (unsigned)state->setup_count,
2857                    (unsigned)state->total_param, (unsigned)pscnt,
2858                    (unsigned)state->max_param_return,
2859                    (unsigned)state->total_data, (unsigned)dscnt,
2860                    (unsigned)state->max_data_return,
2861                    (unsigned)psoff, (unsigned)dsoff));
2862
2863         /*
2864          * All nttrans messages we handle have smb_wct == 19 +
2865          * state->setup_count.  Ensure this is so as a sanity check.
2866          */
2867
2868         if(req->wct != 19 + (state->setup_count/2)) {
2869                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2870                          req->wct, 19 + (state->setup_count/2)));
2871                 goto bad_param;
2872         }
2873
2874         /* Don't allow more than 128mb for each value. */
2875         if ((state->total_data > (1024*1024*128)) ||
2876             (state->total_param > (1024*1024*128))) {
2877                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2878                 END_PROFILE(SMBnttrans);
2879                 return;
2880         }
2881
2882         if ((dscnt > state->total_data) || (pscnt > state->total_param))
2883                 goto bad_param;
2884
2885         if (state->total_data)  {
2886
2887                 if (trans_oob(state->total_data, 0, dscnt)
2888                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2889                         goto bad_param;
2890                 }
2891
2892                 /* Can't use talloc here, the core routines do realloc on the
2893                  * params and data. */
2894                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2895                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
2896                                  "bytes !\n", (unsigned int)state->total_data));
2897                         TALLOC_FREE(state);
2898                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2899                         END_PROFILE(SMBnttrans);
2900                         return;
2901                 }
2902
2903                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2904         }
2905
2906         if (state->total_param) {
2907
2908                 if (trans_oob(state->total_param, 0, pscnt)
2909                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2910                         goto bad_param;
2911                 }
2912
2913                 /* Can't use talloc here, the core routines do realloc on the
2914                  * params and data. */
2915                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2916                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
2917                                  "bytes !\n", (unsigned int)state->total_param));
2918                         SAFE_FREE(state->data);
2919                         TALLOC_FREE(state);
2920                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2921                         END_PROFILE(SMBnttrans);
2922                         return;
2923                 }
2924
2925                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2926         }
2927
2928         state->received_data  = dscnt;
2929         state->received_param = pscnt;
2930
2931         if(state->setup_count > 0) {
2932                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2933                           state->setup_count));
2934
2935                 /*
2936                  * No overflow possible here, state->setup_count is an
2937                  * unsigned int, being filled by a single byte from
2938                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
2939                  * below is not necessary, it's here to clarify things. The
2940                  * validity of req->vwv and req->wct has been checked in
2941                  * init_smb_request already.
2942                  */
2943                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2944                         goto bad_param;
2945                 }
2946
2947                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2948                 if (state->setup == NULL) {
2949                         DEBUG(0,("reply_nttrans : Out of memory\n"));
2950                         SAFE_FREE(state->data);
2951                         SAFE_FREE(state->param);
2952                         TALLOC_FREE(state);
2953                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2954                         END_PROFILE(SMBnttrans);
2955                         return;
2956                 }
2957
2958                 memcpy(state->setup, req->vwv+19, state->setup_count);
2959                 dump_data(10, (uint8 *)state->setup, state->setup_count);
2960         }
2961
2962         if ((state->received_data == state->total_data) &&
2963             (state->received_param == state->total_param)) {
2964                 handle_nttrans(conn, state, req);
2965                 SAFE_FREE(state->param);
2966                 SAFE_FREE(state->data);
2967                 TALLOC_FREE(state);
2968                 END_PROFILE(SMBnttrans);
2969                 return;
2970         }
2971
2972         DLIST_ADD(conn->pending_trans, state);
2973
2974         /* We need to send an interim response then receive the rest
2975            of the parameter/data bytes */
2976         reply_outbuf(req, 0, 0);
2977         show_msg((char *)req->outbuf);
2978         END_PROFILE(SMBnttrans);
2979         return;
2980
2981   bad_param:
2982
2983         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2984         SAFE_FREE(state->data);
2985         SAFE_FREE(state->param);
2986         TALLOC_FREE(state);
2987         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2988         END_PROFILE(SMBnttrans);
2989         return;
2990 }
2991
2992 /****************************************************************************
2993  Reply to a SMBnttranss
2994  ****************************************************************************/
2995
2996 void reply_nttranss(struct smb_request *req)
2997 {
2998         connection_struct *conn = req->conn;
2999         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3000         struct trans_state *state;
3001
3002         START_PROFILE(SMBnttranss);
3003
3004         show_msg((const char *)req->inbuf);
3005
3006         /* Windows clients expect all replies to
3007            an NT transact secondary (SMBnttranss 0xA1)
3008            to have a command code of NT transact
3009            (SMBnttrans 0xA0). See bug #8989 for details. */
3010         req->cmd = SMBnttrans;
3011
3012         if (req->wct < 18) {
3013                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3014                 END_PROFILE(SMBnttranss);
3015                 return;
3016         }
3017
3018         for (state = conn->pending_trans; state != NULL;
3019              state = state->next) {
3020                 if (state->mid == req->mid) {
3021                         break;
3022                 }
3023         }
3024
3025         if ((state == NULL) || (state->cmd != SMBnttrans)) {
3026                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3027                 END_PROFILE(SMBnttranss);
3028                 return;
3029         }
3030
3031         /* Revise state->total_param and state->total_data in case they have
3032            changed downwards */
3033         if (IVAL(req->vwv+1, 1) < state->total_param) {
3034                 state->total_param = IVAL(req->vwv+1, 1);
3035         }
3036         if (IVAL(req->vwv+3, 1) < state->total_data) {
3037                 state->total_data = IVAL(req->vwv+3, 1);
3038         }
3039
3040         pcnt = IVAL(req->vwv+5, 1);
3041         poff = IVAL(req->vwv+7, 1);
3042         pdisp = IVAL(req->vwv+9, 1);
3043
3044         dcnt = IVAL(req->vwv+11, 1);
3045         doff = IVAL(req->vwv+13, 1);
3046         ddisp = IVAL(req->vwv+15, 1);
3047
3048         state->received_param += pcnt;
3049         state->received_data += dcnt;
3050
3051         if ((state->received_data > state->total_data) ||
3052             (state->received_param > state->total_param))
3053                 goto bad_param;
3054
3055         if (pcnt) {
3056                 if (trans_oob(state->total_param, pdisp, pcnt)
3057                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3058                         goto bad_param;
3059                 }
3060                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3061         }
3062
3063         if (dcnt) {
3064                 if (trans_oob(state->total_data, ddisp, dcnt)
3065                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3066                         goto bad_param;
3067                 }
3068                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3069         }
3070
3071         if ((state->received_param < state->total_param) ||
3072             (state->received_data < state->total_data)) {
3073                 END_PROFILE(SMBnttranss);
3074                 return;
3075         }
3076
3077         handle_nttrans(conn, state, req);
3078
3079         DLIST_REMOVE(conn->pending_trans, state);
3080         SAFE_FREE(state->data);
3081         SAFE_FREE(state->param);
3082         TALLOC_FREE(state);
3083         END_PROFILE(SMBnttranss);
3084         return;
3085
3086   bad_param:
3087
3088         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3089         DLIST_REMOVE(conn->pending_trans, state);
3090         SAFE_FREE(state->data);
3091         SAFE_FREE(state->param);
3092         TALLOC_FREE(state);
3093         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3094         END_PROFILE(SMBnttranss);
3095         return;
3096 }