source3/smbd/smb1_nttrans.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB NT transaction handling
   4    Copyright (C) Jeremy Allison                 1994-2007
   5    Copyright (C) Stefan (metze) Metzmacher      2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "system/filesys.h"
  23 #include "smbd/smbd.h"
  24 #include "smbd/globals.h"
  25 #include "fake_file.h"
  26 #include "../libcli/security/security.h"
  27 #include "../librpc/gen_ndr/ndr_security.h"
  28 #include "passdb/lookup_sid.h"
  29 #include "auth.h"
  30 #include "smbprofile.h"
  31 #include "libsmb/libsmb.h"
  32 #include "lib/util_ea.h"
  33 #include "librpc/gen_ndr/ndr_quota.h"
  34 #include "librpc/gen_ndr/ndr_security.h"
  35
  36 static char *nttrans_realloc(char **ptr, size_t size)
  37 {
  38         if (ptr==NULL) {
  39                 smb_panic("nttrans_realloc() called with NULL ptr");
  40         }
  41
  42         *ptr = (char *)SMB_REALLOC(*ptr, size);
  43         if(*ptr == NULL) {
  44                 return NULL;
  45         }
  46         memset(*ptr,'\0',size);
  47         return *ptr;
  48 }
  49
  50 /****************************************************************************
  51  Send the required number of replies back.
  52  We assume all fields other than the data fields are
  53  set correctly for the type of call.
  54  HACK ! Always assumes smb_setup field is zero.
  55 ****************************************************************************/
  56
  57 static void send_nt_replies(connection_struct *conn,
  58                             struct smb_request *req, NTSTATUS nt_error,
  59                             char *params, int paramsize,
  60                             char *pdata, int datasize)
  61 {
  62         int data_to_send = datasize;
  63         int params_to_send = paramsize;
  64         int useable_space;
  65         char *pp = params;
  66         char *pd = pdata;
  67         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  68         int alignment_offset = 1;
  69         int data_alignment_offset = 0;
  70         struct smbXsrv_connection *xconn = req->xconn;
  71         int max_send = xconn->smb1.sessions.max_send;
  72
  73         /*
  74          * If there genuinely are no parameters or data to send just send
  75          * the empty packet.
  76          */
  77
  78         if(params_to_send == 0 && data_to_send == 0) {
  79                 reply_smb1_outbuf(req, 18, 0);
  80                 if (NT_STATUS_V(nt_error)) {
  81                         error_packet_set((char *)req->outbuf,
  82                                          0, 0, nt_error,
  83                                          __LINE__,__FILE__);
  84                 }
  85                 show_msg((char *)req->outbuf);
  86                 if (!smb1_srv_send(xconn,
  87                                    (char *)req->outbuf,
  88                                    true,
  89                                    req->seqnum + 1,
  90                                    IS_CONN_ENCRYPTED(conn))) {
  91                         exit_server_cleanly("send_nt_replies: smb1_srv_send failed.");
  92                 }
  93                 TALLOC_FREE(req->outbuf);
  94                 return;
  95         }
  96
  97         /*
  98          * When sending params and data ensure that both are nicely aligned.
  99          * Only do this alignment when there is also data to send - else
 100          * can cause NT redirector problems.
 101          */
 102
 103         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
 104                 data_alignment_offset = 4 - (params_to_send % 4);
 105         }
 106
 107         /*
 108          * Space is bufsize minus Netbios over TCP header minus SMB header.
 109          * The alignment_offset is to align the param bytes on a four byte
 110          * boundary (2 bytes for data len, one byte pad).
 111          * NT needs this to work correctly.
 112          */
 113
 114         useable_space = max_send - (smb_size
 115                                     + 2 * 18 /* wct */
 116                                     + alignment_offset
 117                                     + data_alignment_offset);
 118
 119         if (useable_space < 0) {
 120                 char *msg = talloc_asprintf(
 121                         talloc_tos(),
 122                         "send_nt_replies failed sanity useable_space = %d!!!",
 123                         useable_space);
 124                 DEBUG(0, ("%s\n", msg));
 125                 exit_server_cleanly(msg);
 126         }
 127
 128         while (params_to_send || data_to_send) {
 129
 130                 /*
 131                  * Calculate whether we will totally or partially fill this packet.
 132                  */
 133
 134                 total_sent_thistime = params_to_send + data_to_send;
 135
 136                 /*
 137                  * We can never send more than useable_space.
 138                  */
 139
 140                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 141
 142                 reply_smb1_outbuf(req, 18,
 143                              total_sent_thistime + alignment_offset
 144                              + data_alignment_offset);
 145
 146                 /*
 147                  * Set total params and data to be sent.
 148                  */
 149
 150                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 151                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 152
 153                 /*
 154                  * Calculate how many parameters and data we can fit into
 155                  * this packet. Parameters get precedence.
 156                  */
 157
 158                 params_sent_thistime = MIN(params_to_send,useable_space);
 159                 data_sent_thistime = useable_space - params_sent_thistime;
 160                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 161
 162                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 163                       params_sent_thistime);
 164
 165                 if(params_sent_thistime == 0) {
 166                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 167                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 168                 } else {
 169                         /*
 170                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 171                          * parameter bytes, however the first 4 bytes of outbuf are
 172                          * the Netbios over TCP header. Thus use smb_base() to subtract
 173                          * them from the calculation.
 174                          */
 175
 176                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 177                               ((smb_buf(req->outbuf)+alignment_offset)
 178                                - smb_base(req->outbuf)));
 179                         /*
 180                          * Absolute displacement of param bytes sent in this packet.
 181                          */
 182
 183                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 184                               pp - params);
 185                 }
 186
 187                 /*
 188                  * Deal with the data portion.
 189                  */
 190
 191                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 192
 193                 if(data_sent_thistime == 0) {
 194                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 195                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 196                 } else {
 197                         /*
 198                          * The offset of the data bytes is the offset of the
 199                          * parameter bytes plus the number of parameters being sent this time.
 200                          */
 201
 202                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 203                               ((smb_buf(req->outbuf)+alignment_offset) -
 204                                smb_base(req->outbuf))
 205                               + params_sent_thistime + data_alignment_offset);
 206                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 207                 }
 208
 209                 /*
 210                  * Copy the param bytes into the packet.
 211                  */
 212
 213                 if(params_sent_thistime) {
 214                         if (alignment_offset != 0) {
 215                                 memset(smb_buf(req->outbuf), 0,
 216                                        alignment_offset);
 217                         }
 218                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 219                                params_sent_thistime);
 220                 }
 221
 222                 /*
 223                  * Copy in the data bytes
 224                  */
 225
 226                 if(data_sent_thistime) {
 227                         if (data_alignment_offset != 0) {
 228                                 memset((smb_buf(req->outbuf)+alignment_offset+
 229                                         params_sent_thistime), 0,
 230                                        data_alignment_offset);
 231                         }
 232                         memcpy(smb_buf(req->outbuf)+alignment_offset
 233                                +params_sent_thistime+data_alignment_offset,
 234                                pd,data_sent_thistime);
 235                 }
 236
 237                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 238                         params_sent_thistime, data_sent_thistime, useable_space));
 239                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 240                         params_to_send, data_to_send, paramsize, datasize));
 241
 242                 if (NT_STATUS_V(nt_error)) {
 243                         error_packet_set((char *)req->outbuf,
 244                                          0, 0, nt_error,
 245                                          __LINE__,__FILE__);
 246                 }
 247
 248                 /* Send the packet */
 249                 show_msg((char *)req->outbuf);
 250                 if (!smb1_srv_send(xconn,
 251                                    (char *)req->outbuf,
 252                                    true,
 253                                    req->seqnum + 1,
 254                                    IS_CONN_ENCRYPTED(conn))) {
 255                         exit_server_cleanly("send_nt_replies: smb1_srv_send failed.");
 256                 }
 257
 258                 TALLOC_FREE(req->outbuf);
 259
 260                 pp += params_sent_thistime;
 261                 pd += data_sent_thistime;
 262
 263                 params_to_send -= params_sent_thistime;
 264                 data_to_send -= data_sent_thistime;
 265
 266                 /*
 267                  * Sanity check
 268                  */
 269
 270                 if(params_to_send < 0 || data_to_send < 0) {
 271                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 272                                 params_to_send, data_to_send));
 273                         exit_server_cleanly("send_nt_replies: internal error");
 274                 }
 275         }
 276 }
 277
 278 /****************************************************************************
 279  Reply to an NT create and X call on a pipe
 280 ****************************************************************************/
 281
 282 static void nt_open_pipe(char *fname, connection_struct *conn,
 283                          struct smb_request *req, uint16_t *ppnum)
 284 {
 285         files_struct *fsp;
 286         NTSTATUS status;
 287
 288         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 289
 290         /* Strip \\ off the name if present. */
 291         while (fname[0] == '\\') {
 292                 fname++;
 293         }
 294
 295         status = open_np_file(req, fname, &fsp);
 296         if (!NT_STATUS_IS_OK(status)) {
 297                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 298                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 299                                         ERRDOS, ERRbadpipe);
 300                         return;
 301                 }
 302                 reply_nterror(req, status);
 303                 return;
 304         }
 305
 306         *ppnum = fsp->fnum;
 307         return;
 308 }
 309
 310 /****************************************************************************
 311  Reply to an NT create and X call for pipes.
 312 ****************************************************************************/
 313
 314 static void do_ntcreate_pipe_open(connection_struct *conn,
 315                                   struct smb_request *req)
 316 {
 317         char *fname = NULL;
 318         uint16_t pnum = FNUM_FIELD_INVALID;
 319         char *p = NULL;
 320         uint32_t flags = IVAL(req->vwv+3, 1);
 321         TALLOC_CTX *ctx = talloc_tos();
 322
 323         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
 324
 325         if (!fname) {
 326                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 327                                 ERRDOS, ERRbadpipe);
 328                 return;
 329         }
 330         nt_open_pipe(fname, conn, req, &pnum);
 331
 332         if (req->outbuf) {
 333                 /* error reply */
 334                 return;
 335         }
 336
 337         /*
 338          * Deal with pipe return.
 339          */
 340
 341         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 342                 /* This is very strange. We
 343                  * return 50 words, but only set
 344                  * the wcnt to 42 ? It's definitely
 345                  * what happens on the wire....
 346                  */
 347                 reply_smb1_outbuf(req, 50, 0);
 348                 SCVAL(req->outbuf,smb_wct,42);
 349         } else {
 350                 reply_smb1_outbuf(req, 34, 0);
 351         }
 352
 353         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 354         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 355
 356         p = (char *)req->outbuf + smb_vwv2;
 357         p++;
 358         SSVAL(p,0,pnum);
 359         p += 2;
 360         SIVAL(p,0,FILE_WAS_OPENED);
 361         p += 4;
 362         p += 32;
 363         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 364         p += 20;
 365         /* File type. */
 366         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 367         /* Device state. */
 368         SSVAL(p,2, 0x5FF); /* ? */
 369         p += 4;
 370
 371         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 372                 p += 25;
 373                 SIVAL(p,0,FILE_GENERIC_ALL);
 374                 /*
 375                  * For pipes W2K3 seems to return
 376                  * 0x12019B next.
 377                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 378                  */
 379                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 380         }
 381
 382         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 383 }
 384
 385 struct case_semantics_state {
 386         connection_struct *conn;
 387         bool case_sensitive;
 388         bool case_preserve;
 389         bool short_case_preserve;
 390 };
 391
 392 /****************************************************************************
 393  Restore case semantics.
 394 ****************************************************************************/
 395
 396 static int restore_case_semantics(struct case_semantics_state *state)
 397 {
 398         state->conn->case_sensitive = state->case_sensitive;
 399         state->conn->case_preserve = state->case_preserve;
 400         state->conn->short_case_preserve = state->short_case_preserve;
 401         return 0;
 402 }
 403
 404 /****************************************************************************
 405  Save case semantics.
 406 ****************************************************************************/
 407
 408 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 409                                                 connection_struct *conn)
 410 {
 411         struct case_semantics_state *result;
 412
 413         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 414                 return NULL;
 415         }
 416
 417         result->conn = conn;
 418         result->case_sensitive = conn->case_sensitive;
 419         result->case_preserve = conn->case_preserve;
 420         result->short_case_preserve = conn->short_case_preserve;
 421
 422         /* Set to POSIX. */
 423         conn->case_sensitive = True;
 424         conn->case_preserve = True;
 425         conn->short_case_preserve = True;
 426
 427         talloc_set_destructor(result, restore_case_semantics);
 428
 429         return result;
 430 }
 431
 432 /*
 433  * Calculate the full path name given a relative fid.
 434  */
 435 static NTSTATUS get_relative_fid_filename(connection_struct *conn,
 436                                           struct smb_request *req,
 437                                           uint16_t root_dir_fid,
 438                                           char *path,
 439                                           char **path_out)
 440 {
 441         struct files_struct *dir_fsp = NULL;
 442         char *new_path = NULL;
 443
 444         if (root_dir_fid == 0 || path == NULL) {
 445                 return NT_STATUS_INTERNAL_ERROR;
 446         }
 447
 448         dir_fsp = file_fsp(req, root_dir_fid);
 449         if (dir_fsp == NULL) {
 450                 return NT_STATUS_INVALID_HANDLE;
 451         }
 452
 453         if (fsp_is_alternate_stream(dir_fsp)) {
 454                 return NT_STATUS_INVALID_HANDLE;
 455         }
 456
 457         if (!dir_fsp->fsp_flags.is_directory) {
 458                 /*
 459                  * Check to see if this is a mac fork of some kind.
 460                  */
 461                 if (conn->fs_capabilities & FILE_NAMED_STREAMS) {
 462                         char *stream = NULL;
 463
 464                         stream = strchr_m(path, ':');
 465                         if (stream != NULL) {
 466                                 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
 467                         }
 468                 }
 469
 470                 /*
 471                  * We need to handle the case when we get a relative open
 472                  * relative to a file and the pathname is blank - this is a
 473                  * reopen! (hint from demyn plantenberg)
 474                  */
 475                 return NT_STATUS_INVALID_HANDLE;
 476         }
 477
 478         if (ISDOT(dir_fsp->fsp_name->base_name)) {
 479                 /*
 480                  * We're at the toplevel dir, the final file name
 481                  * must not contain ./, as this is filtered out
 482                  * normally by srvstr_get_path and unix_convert
 483                  * explicitly rejects paths containing ./.
 484                  */
 485                 new_path = talloc_strdup(talloc_tos(), path);
 486         } else {
 487                 /*
 488                  * Copy in the base directory name.
 489                  */
 490
 491                 new_path = talloc_asprintf(talloc_tos(),
 492                                            "%s/%s",
 493                                            dir_fsp->fsp_name->base_name,
 494                                            path);
 495         }
 496         if (new_path == NULL) {
 497                 return NT_STATUS_NO_MEMORY;
 498         }
 499
 500         *path_out = new_path;
 501         return NT_STATUS_OK;
 502 }
 503
 504 /****************************************************************************
 505  Reply to an NT create and X call.
 506 ****************************************************************************/
 507
 508 void reply_ntcreate_and_X(struct smb_request *req)
 509 {
 510         connection_struct *conn = req->conn;
 511         struct files_struct *dirfsp = NULL;
 512         struct smb_filename *smb_fname = NULL;
 513         char *fname = NULL;
 514         uint32_t flags;
 515         uint32_t access_mask;
 516         uint32_t file_attributes;
 517         uint32_t share_access;
 518         uint32_t create_disposition;
 519         uint32_t create_options;
 520         uint16_t root_dir_fid;
 521         uint64_t allocation_size;
 522         /* Breakout the oplock request bits so we can set the
 523            reply bits separately. */
 524         uint32_t fattr=0;
 525         off_t file_len = 0;
 526         int info = 0;
 527         files_struct *fsp = NULL;
 528         char *p = NULL;
 529         struct timespec create_timespec;
 530         struct timespec c_timespec;
 531         struct timespec a_timespec;
 532         struct timespec m_timespec;
 533         NTSTATUS status;
 534         int oplock_request;
 535         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 536         struct case_semantics_state *case_state = NULL;
 537         uint32_t ucf_flags;
 538         NTTIME twrp = 0;
 539         TALLOC_CTX *ctx = talloc_tos();
 540
 541         START_PROFILE(SMBntcreateX);
 542
 543         if (req->wct < 24) {
 544                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 545                 goto out;
 546         }
 547
 548         flags = IVAL(req->vwv+3, 1);
 549         access_mask = IVAL(req->vwv+7, 1);
 550         file_attributes = IVAL(req->vwv+13, 1);
 551         share_access = IVAL(req->vwv+15, 1);
 552         create_disposition = IVAL(req->vwv+17, 1);
 553         create_options = IVAL(req->vwv+19, 1);
 554         root_dir_fid = (uint16_t)IVAL(req->vwv+5, 1);
 555
 556         allocation_size = BVAL(req->vwv+9, 1);
 557
 558         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 559                             STR_TERMINATE, &status);
 560
 561         if (!NT_STATUS_IS_OK(status)) {
 562                 reply_nterror(req, status);
 563                 goto out;
 564         }
 565
 566         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 567                   "file_attributes = 0x%x, share_access = 0x%x, "
 568                   "create_disposition = 0x%x create_options = 0x%x "
 569                   "root_dir_fid = 0x%x, fname = %s\n",
 570                         (unsigned int)flags,
 571                         (unsigned int)access_mask,
 572                         (unsigned int)file_attributes,
 573                         (unsigned int)share_access,
 574                         (unsigned int)create_disposition,
 575                         (unsigned int)create_options,
 576                         (unsigned int)root_dir_fid,
 577                         fname));
 578
 579         /*
 580          * we need to remove ignored bits when they come directly from the client
 581          * because we reuse some of them for internal stuff
 582          */
 583         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 584
 585         /*
 586          * If it's an IPC, use the pipe handler.
 587          */
 588
 589         if (IS_IPC(conn)) {
 590                 if (lp_nt_pipe_support()) {
 591                         do_ntcreate_pipe_open(conn, req);
 592                         goto out;
 593                 }
 594                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 595                 goto out;
 596         }
 597
 598         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 599         if (oplock_request) {
 600                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 601                         ? BATCH_OPLOCK : 0;
 602         }
 603
 604         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 605                 case_state = set_posix_case_semantics(ctx, conn);
 606                 if (!case_state) {
 607                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 608                         goto out;
 609                 }
 610         }
 611
 612         if (root_dir_fid != 0) {
 613                 char *new_fname = NULL;
 614
 615                 status = get_relative_fid_filename(conn,
 616                                                    req,
 617                                                    root_dir_fid,
 618                                                    fname,
 619                                                    &new_fname);
 620                 if (!NT_STATUS_IS_OK(status)) {
 621                         reply_nterror(req, status);
 622                         goto out;
 623                 }
 624                 fname = new_fname;
 625         }
 626
 627         ucf_flags = filename_create_ucf_flags(req, create_disposition);
 628         if (ucf_flags & UCF_GMT_PATHNAME) {
 629                 extract_snapshot_token(fname, &twrp);
 630         }
 631         status = smb1_strip_dfs_path(ctx, &ucf_flags, &fname);
 632         if (!NT_STATUS_IS_OK(status)) {
 633                 reply_nterror(req, status);
 634                 goto out;
 635         }
 636
 637         status = filename_convert_dirfsp(
 638                 ctx, conn, fname, ucf_flags, twrp, &dirfsp, &smb_fname);
 639
 640         TALLOC_FREE(case_state);
 641
 642         if (!NT_STATUS_IS_OK(status)) {
 643                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 644                         reply_botherror(req,
 645                                 NT_STATUS_PATH_NOT_COVERED,
 646                                 ERRSRV, ERRbadpath);
 647                         goto out;
 648                 }
 649                 reply_nterror(req, status);
 650                 goto out;
 651         }
 652
 653         /*
 654          * Bug #6898 - clients using Windows opens should
 655          * never be able to set this attribute into the
 656          * VFS.
 657          */
 658         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 659
 660         status = SMB_VFS_CREATE_FILE(
 661                 conn,                                   /* conn */
 662                 req,                                    /* req */
 663                 dirfsp,                                 /* dirfsp */
 664                 smb_fname,                              /* fname */
 665                 access_mask,                            /* access_mask */
 666                 share_access,                           /* share_access */
 667                 create_disposition,                     /* create_disposition*/
 668                 create_options,                         /* create_options */
 669                 file_attributes,                        /* file_attributes */
 670                 oplock_request,                         /* oplock_request */
 671                 NULL,                                   /* lease */
 672                 allocation_size,                        /* allocation_size */
 673                 0,                                      /* private_flags */
 674                 NULL,                                   /* sd */
 675                 NULL,                                   /* ea_list */
 676                 &fsp,                                   /* result */
 677                 &info,                                  /* pinfo */
 678                 NULL, NULL);                            /* create context */
 679
 680         if (!NT_STATUS_IS_OK(status)) {
 681                 if (open_was_deferred(req->xconn, req->mid)) {
 682                         /* We have re-scheduled this call, no error. */
 683                         goto out;
 684                 }
 685                 if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
 686                         bool ok = defer_smb1_sharing_violation(req);
 687                         if (ok) {
 688                                 goto out;
 689                         }
 690                 }
 691                 reply_openerror(req, status);
 692                 goto out;
 693         }
 694
 695         /* Ensure we're pointing at the correct stat struct. */
 696         smb_fname = fsp->fsp_name;
 697
 698         /*
 699          * If the caller set the extended oplock request bit
 700          * and we granted one (by whatever means) - set the
 701          * correct bit for extended oplock reply.
 702          */
 703
 704         if (oplock_request &&
 705             (lp_fake_oplocks(SNUM(conn))
 706              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 707
 708                 /*
 709                  * Exclusive oplock granted
 710                  */
 711
 712                 if (flags & REQUEST_BATCH_OPLOCK) {
 713                         oplock_granted = BATCH_OPLOCK_RETURN;
 714                 } else {
 715                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 716                 }
 717         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 718                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 719         } else {
 720                 oplock_granted = NO_OPLOCK_RETURN;
 721         }
 722
 723         file_len = smb_fname->st.st_ex_size;
 724
 725         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 726                 /* This is very strange. We
 727                  * return 50 words, but only set
 728                  * the wcnt to 42 ? It's definitely
 729                  * what happens on the wire....
 730                  */
 731                 reply_smb1_outbuf(req, 50, 0);
 732                 SCVAL(req->outbuf,smb_wct,42);
 733         } else {
 734                 reply_smb1_outbuf(req, 34, 0);
 735         }
 736
 737         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 738         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 739
 740         p = (char *)req->outbuf + smb_vwv2;
 741
 742         SCVAL(p, 0, oplock_granted);
 743
 744         p++;
 745         SSVAL(p,0,fsp->fnum);
 746         p += 2;
 747         if ((create_disposition == FILE_SUPERSEDE)
 748             && (info == FILE_WAS_OVERWRITTEN)) {
 749                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 750         } else {
 751                 SIVAL(p,0,info);
 752         }
 753         p += 4;
 754
 755         fattr = fdos_mode(fsp);
 756         if (fattr == 0) {
 757                 fattr = FILE_ATTRIBUTE_NORMAL;
 758         }
 759
 760         /* Create time. */
 761         create_timespec = get_create_timespec(conn, fsp, smb_fname);
 762         a_timespec = smb_fname->st.st_ex_atime;
 763         m_timespec = smb_fname->st.st_ex_mtime;
 764         c_timespec = get_change_timespec(conn, fsp, smb_fname);
 765
 766         if (lp_dos_filetime_resolution(SNUM(conn))) {
 767                 dos_filetime_timespec(&create_timespec);
 768                 dos_filetime_timespec(&a_timespec);
 769                 dos_filetime_timespec(&m_timespec);
 770                 dos_filetime_timespec(&c_timespec);
 771         }
 772
 773         put_long_date_full_timespec(conn->ts_res, p, &create_timespec); /* create time. */
 774         p += 8;
 775         put_long_date_full_timespec(conn->ts_res, p, &a_timespec); /* access time */
 776         p += 8;
 777         put_long_date_full_timespec(conn->ts_res, p, &m_timespec); /* write time */
 778         p += 8;
 779         put_long_date_full_timespec(conn->ts_res, p, &c_timespec); /* change time */
 780         p += 8;
 781         SIVAL(p,0,fattr); /* File Attributes. */
 782         p += 4;
 783         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 784         p += 8;
 785         SOFF_T(p,0,file_len);
 786         p += 8;
 787         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 788                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
 789                 unsigned int num_streams = 0;
 790                 struct stream_struct *streams = NULL;
 791
 792                 if (lp_ea_support(SNUM(conn))) {
 793                         size_t num_names = 0;
 794                         /* Do we have any EA's ? */
 795                         status = get_ea_names_from_fsp(
 796                             ctx, smb_fname->fsp, NULL, &num_names);
 797                         if (NT_STATUS_IS_OK(status) && num_names) {
 798                                 file_status &= ~NO_EAS;
 799                         }
 800                 }
 801
 802                 status = vfs_fstreaminfo(smb_fname->fsp, ctx,
 803                         &num_streams, &streams);
 804                 /* There is always one stream, ::$DATA. */
 805                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
 806                         file_status &= ~NO_SUBSTREAMS;
 807                 }
 808                 TALLOC_FREE(streams);
 809                 SSVAL(p,2,file_status);
 810         }
 811         p += 4;
 812         SCVAL(p,0,fsp->fsp_flags.is_directory ? 1 : 0);
 813
 814         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 815                 uint32_t perms = 0;
 816                 p += 25;
 817                 if (fsp->fsp_flags.is_directory ||
 818                     fsp->fsp_flags.can_write ||
 819                     can_write_to_fsp(fsp))
 820                 {
 821                         perms = FILE_GENERIC_ALL;
 822                 } else {
 823                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 824                 }
 825                 SIVAL(p,0,perms);
 826         }
 827
 828         DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
 829                 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
 830
 831  out:
 832         END_PROFILE(SMBntcreateX);
 833         return;
 834 }
 835
 836 /****************************************************************************
 837  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 838 ****************************************************************************/
 839
 840 static void do_nt_transact_create_pipe(connection_struct *conn,
 841                                        struct smb_request *req,
 842                                        uint16_t **ppsetup, uint32_t setup_count,
 843                                        char **ppparams, uint32_t parameter_count,
 844                                        char **ppdata, uint32_t data_count)
 845 {
 846         char *fname = NULL;
 847         char *params = *ppparams;
 848         uint16_t pnum = FNUM_FIELD_INVALID;
 849         char *p = NULL;
 850         NTSTATUS status;
 851         size_t param_len;
 852         uint32_t flags;
 853         TALLOC_CTX *ctx = talloc_tos();
 854
 855         /*
 856          * Ensure minimum number of parameters sent.
 857          */
 858
 859         if(parameter_count < 54) {
 860                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 861                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 862                 return;
 863         }
 864
 865         flags = IVAL(params,0);
 866
 867         if (req->posix_pathnames) {
 868                 srvstr_get_path_posix(ctx,
 869                         params,
 870                         req->flags2,
 871                         &fname,
 872                         params+53,
 873                         parameter_count-53,
 874                         STR_TERMINATE,
 875                         &status);
 876         } else {
 877                 srvstr_get_path(ctx,
 878                         params,
 879                         req->flags2,
 880                         &fname,
 881                         params+53,
 882                         parameter_count-53,
 883                         STR_TERMINATE,
 884                         &status);
 885         }
 886         if (!NT_STATUS_IS_OK(status)) {
 887                 reply_nterror(req, status);
 888                 return;
 889         }
 890
 891         nt_open_pipe(fname, conn, req, &pnum);
 892
 893         if (req->outbuf) {
 894                 /* Error return */
 895                 return;
 896         }
 897
 898         /* Realloc the size of parameters and data we will return */
 899         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 900                 /* Extended response is 32 more byyes. */
 901                 param_len = 101;
 902         } else {
 903                 param_len = 69;
 904         }
 905         params = nttrans_realloc(ppparams, param_len);
 906         if(params == NULL) {
 907                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 908                 return;
 909         }
 910
 911         p = params;
 912         SCVAL(p,0,NO_OPLOCK_RETURN);
 913
 914         p += 2;
 915         SSVAL(p,0,pnum);
 916         p += 2;
 917         SIVAL(p,0,FILE_WAS_OPENED);
 918         p += 8;
 919
 920         p += 32;
 921         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 922         p += 20;
 923         /* File type. */
 924         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 925         /* Device state. */
 926         SSVAL(p,2, 0x5FF); /* ? */
 927         p += 4;
 928
 929         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 930                 p += 25;
 931                 SIVAL(p,0,FILE_GENERIC_ALL);
 932                 /*
 933                  * For pipes W2K3 seems to return
 934                  * 0x12019B next.
 935                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 936                  */
 937                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 938         }
 939
 940         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 941
 942         /* Send the required number of replies */
 943         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 944
 945         return;
 946 }
 947
 948 /****************************************************************************
 949  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
 950 ****************************************************************************/
 951
 952 static void call_nt_transact_create(connection_struct *conn,
 953                                     struct smb_request *req,
 954                                     uint16_t **ppsetup, uint32_t setup_count,
 955                                     char **ppparams, uint32_t parameter_count,
 956                                     char **ppdata, uint32_t data_count,
 957                                     uint32_t max_data_count)
 958 {
 959         struct smb_filename *smb_fname = NULL;
 960         char *fname = NULL;
 961         char *params = *ppparams;
 962         char *data = *ppdata;
 963         /* Breakout the oplock request bits so we can set the reply bits separately. */
 964         uint32_t fattr=0;
 965         off_t file_len = 0;
 966         int info = 0;
 967         struct files_struct *dirfsp = NULL;
 968         files_struct *fsp = NULL;
 969         char *p = NULL;
 970         uint32_t flags;
 971         uint32_t access_mask;
 972         uint32_t file_attributes;
 973         uint32_t share_access;
 974         uint32_t create_disposition;
 975         uint32_t create_options;
 976         uint32_t sd_len;
 977         struct security_descriptor *sd = NULL;
 978         uint32_t ea_len;
 979         uint16_t root_dir_fid;
 980         struct timespec create_timespec;
 981         struct timespec c_timespec;
 982         struct timespec a_timespec;
 983         struct timespec m_timespec;
 984         struct ea_list *ea_list = NULL;
 985         NTSTATUS status;
 986         size_t param_len;
 987         uint64_t allocation_size;
 988         int oplock_request;
 989         uint8_t oplock_granted;
 990         struct case_semantics_state *case_state = NULL;
 991         uint32_t ucf_flags;
 992         NTTIME twrp = 0;
 993         TALLOC_CTX *ctx = talloc_tos();
 994
 995         DEBUG(5,("call_nt_transact_create\n"));
 996
 997         /*
 998          * If it's an IPC, use the pipe handler.
 999          */
1000
1001         if (IS_IPC(conn)) {
1002                 if (lp_nt_pipe_support()) {
1003                         do_nt_transact_create_pipe(
1004                                 conn, req,
1005                                 ppsetup, setup_count,
1006                                 ppparams, parameter_count,
1007                                 ppdata, data_count);
1008                         goto out;
1009                 }
1010                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1011                 goto out;
1012         }
1013
1014         /*
1015          * Ensure minimum number of parameters sent.
1016          */
1017
1018         if(parameter_count < 54) {
1019                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1020                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1021                 goto out;
1022         }
1023
1024         flags = IVAL(params,0);
1025         access_mask = IVAL(params,8);
1026         file_attributes = IVAL(params,20);
1027         share_access = IVAL(params,24);
1028         create_disposition = IVAL(params,28);
1029         create_options = IVAL(params,32);
1030         sd_len = IVAL(params,36);
1031         ea_len = IVAL(params,40);
1032         root_dir_fid = (uint16_t)IVAL(params,4);
1033         allocation_size = BVAL(params,12);
1034
1035         /*
1036          * we need to remove ignored bits when they come directly from the client
1037          * because we reuse some of them for internal stuff
1038          */
1039         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1040
1041         if (req->posix_pathnames) {
1042                 srvstr_get_path_posix(ctx,
1043                         params,
1044                         req->flags2,
1045                         &fname,
1046                         params+53,
1047                         parameter_count-53,
1048                         STR_TERMINATE,
1049                         &status);
1050         } else {
1051                 srvstr_get_path(ctx,
1052                         params,
1053                         req->flags2,
1054                         &fname,
1055                         params+53,
1056                         parameter_count-53,
1057                         STR_TERMINATE,
1058                         &status);
1059         }
1060         if (!NT_STATUS_IS_OK(status)) {
1061                 reply_nterror(req, status);
1062                 goto out;
1063         }
1064
1065         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1066                 case_state = set_posix_case_semantics(ctx, conn);
1067                 if (!case_state) {
1068                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1069                         goto out;
1070                 }
1071         }
1072
1073         if (root_dir_fid != 0) {
1074                 char *new_fname = NULL;
1075
1076                 status = get_relative_fid_filename(conn,
1077                                                    req,
1078                                                    root_dir_fid,
1079                                                    fname,
1080                                                    &new_fname);
1081                 if (!NT_STATUS_IS_OK(status)) {
1082                         reply_nterror(req, status);
1083                         goto out;
1084                 }
1085                 fname = new_fname;
1086         }
1087
1088         ucf_flags = filename_create_ucf_flags(req, create_disposition);
1089         if (ucf_flags & UCF_GMT_PATHNAME) {
1090                 extract_snapshot_token(fname, &twrp);
1091         }
1092         status = smb1_strip_dfs_path(ctx, &ucf_flags, &fname);
1093         if (!NT_STATUS_IS_OK(status)) {
1094                 reply_nterror(req, status);
1095                 goto out;
1096         }
1097
1098         status = filename_convert_dirfsp(ctx,
1099                                          conn,
1100                                          fname,
1101                                          ucf_flags,
1102                                          twrp,
1103                                          &dirfsp,
1104                                          &smb_fname);
1105
1106         TALLOC_FREE(case_state);
1107
1108         if (!NT_STATUS_IS_OK(status)) {
1109                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1110                         reply_botherror(req,
1111                                 NT_STATUS_PATH_NOT_COVERED,
1112                                 ERRSRV, ERRbadpath);
1113                         goto out;
1114                 }
1115                 reply_nterror(req, status);
1116                 goto out;
1117         }
1118
1119         /* Ensure the data_len is correct for the sd and ea values given. */
1120         if ((ea_len + sd_len > data_count)
1121             || (ea_len > data_count) || (sd_len > data_count)
1122             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1123                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1124                            "%u, data_count = %u\n", (unsigned int)ea_len,
1125                            (unsigned int)sd_len, (unsigned int)data_count));
1126                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1127                 goto out;
1128         }
1129
1130         if (sd_len) {
1131                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1132                            sd_len));
1133
1134                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1135                                              &sd);
1136                 if (!NT_STATUS_IS_OK(status)) {
1137                         DEBUG(10, ("call_nt_transact_create: "
1138                                    "unmarshall_sec_desc failed: %s\n",
1139                                    nt_errstr(status)));
1140                         reply_nterror(req, status);
1141                         goto out;
1142                 }
1143         }
1144
1145         if (ea_len) {
1146                 if (!lp_ea_support(SNUM(conn))) {
1147                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1148                                    "EA's not supported.\n",
1149                                    (unsigned int)ea_len));
1150                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1151                         goto out;
1152                 }
1153
1154                 if (ea_len < 10) {
1155                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1156                                   "too small (should be more than 10)\n",
1157                                   (unsigned int)ea_len ));
1158                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1159                         goto out;
1160                 }
1161
1162                 /* We have already checked that ea_len <= data_count here. */
1163                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1164                                                ea_len);
1165                 if (ea_list == NULL) {
1166                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1167                         goto out;
1168                 }
1169
1170                 if (!req->posix_pathnames &&
1171                                 ea_list_has_invalid_name(ea_list)) {
1172                         /* Realloc the size of parameters and data we will return */
1173                         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1174                                 /* Extended response is 32 more bytes. */
1175                                 param_len = 101;
1176                         } else {
1177                                 param_len = 69;
1178                         }
1179                         params = nttrans_realloc(ppparams, param_len);
1180                         if(params == NULL) {
1181                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1182                                 goto out;
1183                         }
1184
1185                         memset(params, '\0', param_len);
1186                         send_nt_replies(conn, req, STATUS_INVALID_EA_NAME,
1187                                 params, param_len, NULL, 0);
1188                         goto out;
1189                 }
1190         }
1191
1192         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1193         if (oplock_request) {
1194                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1195                         ? BATCH_OPLOCK : 0;
1196         }
1197
1198         /*
1199          * Bug #6898 - clients using Windows opens should
1200          * never be able to set this attribute into the
1201          * VFS.
1202          */
1203         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1204
1205         status = SMB_VFS_CREATE_FILE(
1206                 conn,                                   /* conn */
1207                 req,                                    /* req */
1208                 dirfsp,                                 /* dirfsp */
1209                 smb_fname,                              /* fname */
1210                 access_mask,                            /* access_mask */
1211                 share_access,                           /* share_access */
1212                 create_disposition,                     /* create_disposition*/
1213                 create_options,                         /* create_options */
1214                 file_attributes,                        /* file_attributes */
1215                 oplock_request,                         /* oplock_request */
1216                 NULL,                                   /* lease */
1217                 allocation_size,                        /* allocation_size */
1218                 0,                                      /* private_flags */
1219                 sd,                                     /* sd */
1220                 ea_list,                                /* ea_list */
1221                 &fsp,                                   /* result */
1222                 &info,                                  /* pinfo */
1223                 NULL, NULL);                            /* create context */
1224
1225         if(!NT_STATUS_IS_OK(status)) {
1226                 if (open_was_deferred(req->xconn, req->mid)) {
1227                         /* We have re-scheduled this call, no error. */
1228                         return;
1229                 }
1230                 if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
1231                         bool ok = defer_smb1_sharing_violation(req);
1232                         if (ok) {
1233                                 return;
1234                         }
1235                 }
1236                 reply_openerror(req, status);
1237                 goto out;
1238         }
1239
1240         /* Ensure we're pointing at the correct stat struct. */
1241         TALLOC_FREE(smb_fname);
1242         smb_fname = fsp->fsp_name;
1243
1244         /*
1245          * If the caller set the extended oplock request bit
1246          * and we granted one (by whatever means) - set the
1247          * correct bit for extended oplock reply.
1248          */
1249
1250         if (oplock_request &&
1251             (lp_fake_oplocks(SNUM(conn))
1252              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1253
1254                 /*
1255                  * Exclusive oplock granted
1256                  */
1257
1258                 if (flags & REQUEST_BATCH_OPLOCK) {
1259                         oplock_granted = BATCH_OPLOCK_RETURN;
1260                 } else {
1261                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1262                 }
1263         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1264                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1265         } else {
1266                 oplock_granted = NO_OPLOCK_RETURN;
1267         }
1268
1269         file_len = smb_fname->st.st_ex_size;
1270
1271         /* Realloc the size of parameters and data we will return */
1272         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1273                 /* Extended response is 32 more byyes. */
1274                 param_len = 101;
1275         } else {
1276                 param_len = 69;
1277         }
1278         params = nttrans_realloc(ppparams, param_len);
1279         if(params == NULL) {
1280                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1281                 goto out;
1282         }
1283
1284         p = params;
1285         SCVAL(p, 0, oplock_granted);
1286
1287         p += 2;
1288         SSVAL(p,0,fsp->fnum);
1289         p += 2;
1290         if ((create_disposition == FILE_SUPERSEDE)
1291             && (info == FILE_WAS_OVERWRITTEN)) {
1292                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1293         } else {
1294                 SIVAL(p,0,info);
1295         }
1296         p += 8;
1297
1298         fattr = fdos_mode(fsp);
1299         if (fattr == 0) {
1300                 fattr = FILE_ATTRIBUTE_NORMAL;
1301         }
1302
1303         /* Create time. */
1304         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1305         a_timespec = smb_fname->st.st_ex_atime;
1306         m_timespec = smb_fname->st.st_ex_mtime;
1307         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1308
1309         if (lp_dos_filetime_resolution(SNUM(conn))) {
1310                 dos_filetime_timespec(&create_timespec);
1311                 dos_filetime_timespec(&a_timespec);
1312                 dos_filetime_timespec(&m_timespec);
1313                 dos_filetime_timespec(&c_timespec);
1314         }
1315
1316         put_long_date_full_timespec(conn->ts_res, p, &create_timespec); /* create time. */
1317         p += 8;
1318         put_long_date_full_timespec(conn->ts_res, p, &a_timespec); /* access time */
1319         p += 8;
1320         put_long_date_full_timespec(conn->ts_res, p, &m_timespec); /* write time */
1321         p += 8;
1322         put_long_date_full_timespec(conn->ts_res, p, &c_timespec); /* change time */
1323         p += 8;
1324         SIVAL(p,0,fattr); /* File Attributes. */
1325         p += 4;
1326         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1327         p += 8;
1328         SOFF_T(p,0,file_len);
1329         p += 8;
1330         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1331                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1332                 unsigned int num_streams = 0;
1333                 struct stream_struct *streams = NULL;
1334
1335                 if (lp_ea_support(SNUM(conn))) {
1336                         size_t num_names = 0;
1337                         /* Do we have any EA's ? */
1338                         status = get_ea_names_from_fsp(
1339                             ctx, smb_fname->fsp, NULL, &num_names);
1340                         if (NT_STATUS_IS_OK(status) && num_names) {
1341                                 file_status &= ~NO_EAS;
1342                         }
1343                 }
1344
1345                 status = vfs_fstreaminfo(smb_fname->fsp, ctx,
1346                         &num_streams, &streams);
1347                 /* There is always one stream, ::$DATA. */
1348                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1349                         file_status &= ~NO_SUBSTREAMS;
1350                 }
1351                 TALLOC_FREE(streams);
1352                 SSVAL(p,2,file_status);
1353         }
1354         p += 4;
1355         SCVAL(p,0,fsp->fsp_flags.is_directory ? 1 : 0);
1356
1357         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1358                 uint32_t perms = 0;
1359                 p += 25;
1360                 if (fsp->fsp_flags.is_directory ||
1361                     fsp->fsp_flags.can_write ||
1362                     can_write_to_fsp(fsp))
1363                 {
1364                         perms = FILE_GENERIC_ALL;
1365                 } else {
1366                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1367                 }
1368                 SIVAL(p,0,perms);
1369         }
1370
1371         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1372                  smb_fname_str_dbg(smb_fname)));
1373
1374         /* Send the required number of replies */
1375         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1376  out:
1377         return;
1378 }
1379
1380 /****************************************************************************
1381  Reply to a NT CANCEL request.
1382  conn POINTER CAN BE NULL HERE !
1383 ****************************************************************************/
1384
1385 void reply_ntcancel(struct smb_request *req)
1386 {
1387         struct smbXsrv_connection *xconn = req->xconn;
1388         struct smbd_server_connection *sconn = req->sconn;
1389         bool found;
1390
1391         /*
1392          * Go through and cancel any pending change notifies.
1393          */
1394
1395         START_PROFILE(SMBntcancel);
1396         smb1_srv_cancel_sign_response(xconn);
1397         found = remove_pending_change_notify_requests_by_mid(sconn, req->mid);
1398         if (!found) {
1399                 smbd_smb1_brl_finish_by_mid(sconn, req->mid);
1400         }
1401
1402         DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1403                 (unsigned long long)req->mid));
1404
1405         END_PROFILE(SMBntcancel);
1406         return;
1407 }
1408
1409 /****************************************************************************
1410  Reply to a NT rename request.
1411 ****************************************************************************/
1412
1413 void reply_ntrename(struct smb_request *req)
1414 {
1415         connection_struct *conn = req->conn;
1416         struct files_struct *src_dirfsp = NULL;
1417         struct smb_filename *smb_fname_old = NULL;
1418         struct files_struct *dst_dirfsp = NULL;
1419         struct smb_filename *smb_fname_new = NULL;
1420         char *oldname = NULL;
1421         char *newname = NULL;
1422         const char *dst_original_lcomp = NULL;
1423         const char *p;
1424         NTSTATUS status;
1425         uint32_t attrs;
1426         uint32_t ucf_flags_src = ucf_flags_from_smb_request(req);
1427         NTTIME src_twrp = 0;
1428         uint32_t ucf_flags_dst = ucf_flags_from_smb_request(req);
1429         NTTIME dst_twrp = 0;
1430         uint16_t rename_type;
1431         TALLOC_CTX *ctx = talloc_tos();
1432         bool stream_rename = false;
1433
1434         START_PROFILE(SMBntrename);
1435
1436         if (req->wct < 4) {
1437                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1438                 goto out;
1439         }
1440
1441         attrs = SVAL(req->vwv+0, 0);
1442         rename_type = SVAL(req->vwv+1, 0);
1443
1444         p = (const char *)req->buf + 1;
1445         p += srvstr_get_path_req(ctx, req, &oldname, p, STR_TERMINATE,
1446                                        &status);
1447         if (!NT_STATUS_IS_OK(status)) {
1448                 reply_nterror(req, status);
1449                 goto out;
1450         }
1451
1452         if (!req->posix_pathnames && ms_has_wild(oldname)) {
1453                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1454                 goto out;
1455         }
1456
1457         p++;
1458         p += srvstr_get_path_req(ctx, req, &newname, p, STR_TERMINATE,
1459                                        &status);
1460         if (!NT_STATUS_IS_OK(status)) {
1461                 reply_nterror(req, status);
1462                 goto out;
1463         }
1464
1465         if (!req->posix_pathnames && ms_has_wild(newname)) {
1466                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1467                 goto out;
1468         }
1469
1470         if (!req->posix_pathnames) {
1471                 /* The newname must begin with a ':' if the
1472                    oldname contains a ':'. */
1473                 if (strchr_m(oldname, ':')) {
1474                         if (newname[0] != ':') {
1475                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1476                                 goto out;
1477                         }
1478                         stream_rename = true;
1479                 }
1480         }
1481
1482         if (ucf_flags_src & UCF_GMT_PATHNAME) {
1483                 extract_snapshot_token(oldname, &src_twrp);
1484         }
1485         status = smb1_strip_dfs_path(ctx, &ucf_flags_src, &oldname);
1486         if (!NT_STATUS_IS_OK(status)) {
1487                 reply_nterror(req, status);
1488                 goto out;
1489         }
1490
1491         status = filename_convert_dirfsp(ctx,
1492                                          conn,
1493                                          oldname,
1494                                          ucf_flags_src,
1495                                          src_twrp,
1496                                          &src_dirfsp,
1497                                          &smb_fname_old);
1498         if (!NT_STATUS_IS_OK(status)) {
1499                 if (NT_STATUS_EQUAL(status,
1500                                     NT_STATUS_PATH_NOT_COVERED)) {
1501                         reply_botherror(req,
1502                                         NT_STATUS_PATH_NOT_COVERED,
1503                                         ERRSRV, ERRbadpath);
1504                         goto out;
1505                 }
1506                 reply_nterror(req, status);
1507                 goto out;
1508         }
1509
1510         if (stream_rename) {
1511                 /*
1512                  * No point in calling filename_convert()
1513                  * on a raw stream name. It can never find
1514                  * the file anyway. Use the same logic as
1515                  * SMB2_FILE_RENAME_INFORMATION_INTERNAL
1516                  * and generate smb_fname_new directly.
1517                  */
1518                 smb_fname_new = synthetic_smb_fname(talloc_tos(),
1519                                         smb_fname_old->base_name,
1520                                         newname,
1521                                         NULL,
1522                                         smb_fname_old->twrp,
1523                                         smb_fname_old->flags);
1524                 if (smb_fname_new == NULL) {
1525                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1526                         goto out;
1527                 }
1528         } else {
1529                 if (ucf_flags_dst & UCF_GMT_PATHNAME) {
1530                         extract_snapshot_token(newname,
1531                                                &dst_twrp);
1532                 }
1533                 status = smb1_strip_dfs_path(ctx, &ucf_flags_dst, &newname);
1534                 if (!NT_STATUS_IS_OK(status)) {
1535                         reply_nterror(req, status);
1536                         goto out;
1537                 }
1538                 status = filename_convert_dirfsp(ctx,
1539                                                  conn,
1540                                                  newname,
1541                                                  ucf_flags_dst,
1542                                                  dst_twrp,
1543                                                  &dst_dirfsp,
1544                                                  &smb_fname_new);
1545                 if (!NT_STATUS_IS_OK(status)) {
1546                         if (NT_STATUS_EQUAL(status,
1547                                             NT_STATUS_PATH_NOT_COVERED)) {
1548                                 reply_botherror(req,
1549                                                 NT_STATUS_PATH_NOT_COVERED,
1550                                                 ERRSRV, ERRbadpath);
1551                                 goto out;
1552                         }
1553                         reply_nterror(req, status);
1554                         goto out;
1555                 }
1556         }
1557
1558         /* Get the last component of the destination for rename_internals(). */
1559         dst_original_lcomp = get_original_lcomp(ctx,
1560                                         conn,
1561                                         newname,
1562                                         ucf_flags_dst);
1563         if (dst_original_lcomp == NULL) {
1564                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1565                 goto out;
1566         }
1567
1568
1569         DEBUG(3,("reply_ntrename: %s -> %s\n",
1570                  smb_fname_str_dbg(smb_fname_old),
1571                  smb_fname_str_dbg(smb_fname_new)));
1572
1573         switch(rename_type) {
1574                 case RENAME_FLAG_RENAME:
1575                         status = rename_internals(ctx,
1576                                                 conn,
1577                                                 req,
1578                                                 src_dirfsp,
1579                                                 smb_fname_old,
1580                                                 smb_fname_new,
1581                                                 dst_original_lcomp,
1582                                                 attrs,
1583                                                 false,
1584                                                 DELETE_ACCESS);
1585                         break;
1586                 case RENAME_FLAG_HARD_LINK:
1587                         status = hardlink_internals(ctx,
1588                                                     conn,
1589                                                     req,
1590                                                     false,
1591                                                     smb_fname_old,
1592                                                     smb_fname_new);
1593                         break;
1594                 case RENAME_FLAG_COPY:
1595                         status = copy_internals(ctx,
1596                                                 conn,
1597                                                 req,
1598                                                 src_dirfsp,
1599                                                 smb_fname_old,
1600                                                 dst_dirfsp,
1601                                                 smb_fname_new,
1602                                                 attrs);
1603                         break;
1604                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1605                         status = NT_STATUS_INVALID_PARAMETER;
1606                         break;
1607                 default:
1608                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1609                         break;
1610         }
1611
1612         if (!NT_STATUS_IS_OK(status)) {
1613                 if (open_was_deferred(req->xconn, req->mid)) {
1614                         /* We have re-scheduled this call. */
1615                         goto out;
1616                 }
1617                 if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
1618                         bool ok = defer_smb1_sharing_violation(req);
1619                         if (ok) {
1620                                 goto out;
1621                         }
1622                 }
1623
1624                 reply_nterror(req, status);
1625                 goto out;
1626         }
1627
1628         reply_smb1_outbuf(req, 0, 0);
1629  out:
1630         END_PROFILE(SMBntrename);
1631         return;
1632 }
1633
1634 /****************************************************************************
1635  Reply to a notify change - queue the request and
1636  don't allow a directory to be opened.
1637 ****************************************************************************/
1638
1639 static void smbd_smb1_notify_reply(struct smb_request *req,
1640                                    NTSTATUS error_code,
1641                                    uint8_t *buf, size_t len)
1642 {
1643         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1644 }
1645
1646 static void call_nt_transact_notify_change(connection_struct *conn,
1647                                            struct smb_request *req,
1648                                            uint16_t **ppsetup,
1649                                            uint32_t setup_count,
1650                                            char **ppparams,
1651                                            uint32_t parameter_count,
1652                                            char **ppdata, uint32_t data_count,
1653                                            uint32_t max_data_count,
1654                                            uint32_t max_param_count)
1655 {
1656         uint16_t *setup = *ppsetup;
1657         files_struct *fsp;
1658         uint32_t filter;
1659         NTSTATUS status;
1660         bool recursive;
1661
1662         if(setup_count < 6) {
1663                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1664                 return;
1665         }
1666
1667         fsp = file_fsp(req, SVAL(setup,4));
1668         filter = IVAL(setup, 0);
1669         recursive = (SVAL(setup, 6) != 0) ? True : False;
1670
1671         DEBUG(3,("call_nt_transact_notify_change\n"));
1672
1673         if(!fsp) {
1674                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1675                 return;
1676         }
1677
1678         {
1679                 char *filter_string;
1680
1681                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1682                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1683                         return;
1684                 }
1685
1686                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1687                          "called on %s, filter = %s, recursive = %d\n",
1688                          fsp_str_dbg(fsp), filter_string, recursive));
1689
1690                 TALLOC_FREE(filter_string);
1691         }
1692
1693         if((!fsp->fsp_flags.is_directory) || (conn != fsp->conn)) {
1694                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1695                 return;
1696         }
1697
1698         if (fsp->notify == NULL) {
1699
1700                 status = change_notify_create(fsp,
1701                                               max_param_count,
1702                                               filter,
1703                                               recursive);
1704                 if (!NT_STATUS_IS_OK(status)) {
1705                         DEBUG(10, ("change_notify_create returned %s\n",
1706                                    nt_errstr(status)));
1707                         reply_nterror(req, status);
1708                         return;
1709                 }
1710         }
1711
1712         if (change_notify_fsp_has_changes(fsp)) {
1713
1714                 /*
1715                  * We've got changes pending, respond immediately
1716                  */
1717
1718                 /*
1719                  * TODO: write a torture test to check the filtering behaviour
1720                  * here.
1721                  */
1722
1723                 change_notify_reply(req,
1724                                     NT_STATUS_OK,
1725                                     max_param_count,
1726                                     fsp->notify,
1727                                     smbd_smb1_notify_reply);
1728
1729                 /*
1730                  * change_notify_reply() above has independently sent its
1731                  * results
1732                  */
1733                 return;
1734         }
1735
1736         /*
1737          * No changes pending, queue the request
1738          */
1739
1740         status = change_notify_add_request(req,
1741                         max_param_count,
1742                         filter,
1743                         recursive, fsp,
1744                         smbd_smb1_notify_reply);
1745         if (!NT_STATUS_IS_OK(status)) {
1746                 reply_nterror(req, status);
1747         }
1748         return;
1749 }
1750
1751 /****************************************************************************
1752  Reply to an NT transact rename command.
1753 ****************************************************************************/
1754
1755 static void call_nt_transact_rename(connection_struct *conn,
1756                                     struct smb_request *req,
1757                                     uint16_t **ppsetup, uint32_t setup_count,
1758                                     char **ppparams, uint32_t parameter_count,
1759                                     char **ppdata, uint32_t data_count,
1760                                     uint32_t max_data_count)
1761 {
1762         char *params = *ppparams;
1763         char *new_name = NULL;
1764         files_struct *fsp = NULL;
1765         NTSTATUS status;
1766         TALLOC_CTX *ctx = talloc_tos();
1767
1768         if(parameter_count < 5) {
1769                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1770                 return;
1771         }
1772
1773         fsp = file_fsp(req, SVAL(params, 0));
1774         if (!check_fsp(conn, req, fsp)) {
1775                 return;
1776         }
1777         if (req->posix_pathnames) {
1778                 srvstr_get_path_posix(ctx,
1779                                 params,
1780                                 req->flags2,
1781                                 &new_name,
1782                                 params+4,
1783                                 parameter_count - 4,
1784                                 STR_TERMINATE,
1785                                 &status);
1786         } else {
1787                 srvstr_get_path(ctx,
1788                                 params,
1789                                 req->flags2,
1790                                 &new_name,
1791                                 params+4,
1792                                 parameter_count - 4,
1793                                 STR_TERMINATE,
1794                                 &status);
1795         }
1796
1797         if (!NT_STATUS_IS_OK(status)) {
1798                 reply_nterror(req, status);
1799                 return;
1800         }
1801
1802         /*
1803          * W2K3 ignores this request as the RAW-RENAME test
1804          * demonstrates, so we do.
1805          */
1806         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1807
1808         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1809                  fsp_str_dbg(fsp), new_name));
1810
1811         return;
1812 }
1813
1814 /****************************************************************************
1815  SMB1 reply to query a security descriptor.
1816 ****************************************************************************/
1817
1818 static void call_nt_transact_query_security_desc(connection_struct *conn,
1819                                                  struct smb_request *req,
1820                                                  uint16_t **ppsetup,
1821                                                  uint32_t setup_count,
1822                                                  char **ppparams,
1823                                                  uint32_t parameter_count,
1824                                                  char **ppdata,
1825                                                  uint32_t data_count,
1826                                                  uint32_t max_data_count)
1827 {
1828         char *params = *ppparams;
1829         char *data = *ppdata;
1830         size_t sd_size = 0;
1831         uint32_t security_info_wanted;
1832         files_struct *fsp = NULL;
1833         NTSTATUS status;
1834         uint8_t *marshalled_sd = NULL;
1835
1836         if(parameter_count < 8) {
1837                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1838                 return;
1839         }
1840
1841         fsp = file_fsp(req, SVAL(params,0));
1842         if(!fsp) {
1843                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1844                 return;
1845         }
1846
1847         security_info_wanted = IVAL(params,4);
1848
1849         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1850                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1851                  (unsigned int)security_info_wanted));
1852
1853         params = nttrans_realloc(ppparams, 4);
1854         if(params == NULL) {
1855                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1856                 return;
1857         }
1858
1859         /*
1860          * Get the permissions to return.
1861          */
1862
1863         status = smbd_do_query_security_desc(conn,
1864                                         talloc_tos(),
1865                                         fsp,
1866                                         security_info_wanted &
1867                                         SMB_SUPPORTED_SECINFO_FLAGS,
1868                                         max_data_count,
1869                                         &marshalled_sd,
1870                                         &sd_size);
1871
1872         if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
1873                 SIVAL(params,0,(uint32_t)sd_size);
1874                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1875                         params, 4, NULL, 0);
1876                 return;
1877         }
1878
1879         if (!NT_STATUS_IS_OK(status)) {
1880                 reply_nterror(req, status);
1881                 return;
1882         }
1883
1884         SMB_ASSERT(sd_size > 0);
1885
1886         SIVAL(params,0,(uint32_t)sd_size);
1887
1888         if (max_data_count < sd_size) {
1889                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1890                                 params, 4, NULL, 0);
1891                 return;
1892         }
1893
1894         /*
1895          * Allocate the data we will return.
1896          */
1897
1898         data = nttrans_realloc(ppdata, sd_size);
1899         if(data == NULL) {
1900                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1901                 return;
1902         }
1903
1904         memcpy(data, marshalled_sd, sd_size);
1905
1906         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1907
1908         return;
1909 }
1910
1911 /****************************************************************************
1912  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1913 ****************************************************************************/
1914
1915 static void call_nt_transact_set_security_desc(connection_struct *conn,
1916                                                struct smb_request *req,
1917                                                uint16_t **ppsetup,
1918                                                uint32_t setup_count,
1919                                                char **ppparams,
1920                                                uint32_t parameter_count,
1921                                                char **ppdata,
1922                                                uint32_t data_count,
1923                                                uint32_t max_data_count)
1924 {
1925         char *params= *ppparams;
1926         char *data = *ppdata;
1927         files_struct *fsp = NULL;
1928         uint32_t security_info_sent = 0;
1929         NTSTATUS status;
1930
1931         if(parameter_count < 8) {
1932                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1933                 return;
1934         }
1935
1936         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1937                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1938                 return;
1939         }
1940
1941         if (!CAN_WRITE(fsp->conn)) {
1942                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1943                 return;
1944         }
1945
1946         if(!lp_nt_acl_support(SNUM(conn))) {
1947                 goto done;
1948         }
1949
1950         security_info_sent = IVAL(params,4);
1951
1952         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
1953                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
1954
1955         if (data_count == 0) {
1956                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1957                 return;
1958         }
1959
1960         status = set_sd_blob(fsp, (uint8_t *)data, data_count,
1961                              security_info_sent & SMB_SUPPORTED_SECINFO_FLAGS);
1962         if (!NT_STATUS_IS_OK(status)) {
1963                 reply_nterror(req, status);
1964                 return;
1965         }
1966
1967   done:
1968         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1969         return;
1970 }
1971
1972 /****************************************************************************
1973  Reply to NT IOCTL
1974 ****************************************************************************/
1975
1976 static void call_nt_transact_ioctl(connection_struct *conn,
1977                                    struct smb_request *req,
1978                                    uint16_t **ppsetup, uint32_t setup_count,
1979                                    char **ppparams, uint32_t parameter_count,
1980                                    char **ppdata, uint32_t data_count,
1981                                    uint32_t max_data_count)
1982 {
1983         NTSTATUS status;
1984         uint32_t function;
1985         uint16_t fidnum;
1986         files_struct *fsp;
1987         uint8_t isFSctl;
1988         uint8_t compfilter;
1989         char *out_data = NULL;
1990         uint32_t out_data_len = 0;
1991         char *pdata = *ppdata;
1992         TALLOC_CTX *ctx = talloc_tos();
1993
1994         if (setup_count != 8) {
1995                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1996                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1997                 return;
1998         }
1999
2000         function = IVAL(*ppsetup, 0);
2001         fidnum = SVAL(*ppsetup, 4);
2002         isFSctl = CVAL(*ppsetup, 6);
2003         compfilter = CVAL(*ppsetup, 7);
2004
2005         DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2006                  function, fidnum, isFSctl, compfilter));
2007
2008         fsp=file_fsp(req, fidnum);
2009
2010         /*
2011          * We don't really implement IOCTLs, especially on files.
2012          */
2013         if (!isFSctl) {
2014                 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2015                         isFSctl));
2016                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2017                 return;
2018         }
2019
2020         /* Has to be for an open file! */
2021         if (!check_fsp_open(conn, req, fsp)) {
2022                 return;
2023         }
2024
2025         /*
2026          * out_data might be allocated by the VFS module, but talloc should be
2027          * used, and should be cleaned up when the request ends.
2028          */
2029         status = SMB_VFS_FSCTL(fsp,
2030                                ctx,
2031                                function,
2032                                req->flags2,
2033                                (uint8_t *)pdata,
2034                                data_count,
2035                                (uint8_t **)&out_data,
2036                                max_data_count,
2037                                &out_data_len);
2038         if (!NT_STATUS_IS_OK(status)) {
2039                 reply_nterror(req, status);
2040         } else {
2041                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2042         }
2043 }
2044
2045
2046 #ifdef HAVE_SYS_QUOTAS
2047 /****************************************************************************
2048  Reply to get user quota
2049 ****************************************************************************/
2050
2051 static void call_nt_transact_get_user_quota(connection_struct *conn,
2052                                             struct smb_request *req,
2053                                             uint16_t **ppsetup,
2054                                             uint32_t setup_count,
2055                                             char **ppparams,
2056                                             uint32_t parameter_count,
2057                                             char **ppdata,
2058                                             uint32_t data_count,
2059                                             uint32_t max_data_count)
2060 {
2061         const struct loadparm_substitution *lp_sub =
2062                 loadparm_s3_global_substitution();
2063         NTSTATUS nt_status = NT_STATUS_OK;
2064         char *params = *ppparams;
2065         char *pdata = *ppdata;
2066         int data_len = 0;
2067         int param_len = 0;
2068         files_struct *fsp = NULL;
2069         DATA_BLOB blob = data_blob_null;
2070         struct nttrans_query_quota_params info = {0};
2071         enum ndr_err_code err;
2072         TALLOC_CTX *tmp_ctx = NULL;
2073         uint32_t resp_len = 0;
2074         uint8_t *resp_data = 0;
2075
2076         tmp_ctx = talloc_init("ntquota_list");
2077         if (!tmp_ctx) {
2078                 nt_status = NT_STATUS_NO_MEMORY;
2079                 goto error;
2080         }
2081
2082         /* access check */
2083         if (get_current_uid(conn) != sec_initial_uid()) {
2084                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2085                          "[%s]\n", lp_servicename(talloc_tos(), lp_sub, SNUM(conn)),
2086                          conn->session_info->unix_info->unix_name));
2087                 nt_status = NT_STATUS_ACCESS_DENIED;
2088                 goto error;
2089         }
2090
2091         blob.data = (uint8_t*)params;
2092         blob.length = parameter_count;
2093
2094         err = ndr_pull_struct_blob(&blob, tmp_ctx, &info,
2095                 (ndr_pull_flags_fn_t)ndr_pull_nttrans_query_quota_params);
2096
2097         if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2098                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: failed to pull "
2099                          "query_quota_params.\n"));
2100                 nt_status = NT_STATUS_INVALID_PARAMETER;
2101                 goto error;
2102         }
2103         DBG_DEBUG("info.return_single_entry = %u, info.restart_scan = %u, "
2104                   "info.sid_list_length = %u, info.start_sid_length = %u, "
2105                   "info.start_sid_offset = %u\n",
2106                   (unsigned int)info.return_single_entry,
2107                   (unsigned int)info.restart_scan,
2108                   (unsigned int)info.sid_list_length,
2109                   (unsigned int)info.start_sid_length,
2110                   (unsigned int)info.start_sid_offset);
2111
2112         /* set blob to point at data for further parsing */
2113         blob.data = (uint8_t*)pdata;
2114         blob.length = data_count;
2115         /*
2116          * Although MS-SMB ref is ambiguous here, a microsoft client will
2117          * only ever send a start sid (as part of a list) with
2118          * sid_list_length & start_sid_offset both set to the actual list
2119          * length. Note: Only a single result is returned in this case
2120          * In the case where either start_sid_offset or start_sid_length
2121          * are set alone or if both set (but have different values) then
2122          * it seems windows will return a number of entries from the start
2123          * of the list of users with quotas set. This behaviour is undocumented
2124          * and windows clients do not send messages of that type. As such we
2125          * currently will reject these requests.
2126          */
2127         if (info.start_sid_length
2128         || (info.sid_list_length != info.start_sid_offset)) {
2129                 DBG_ERR("TRANSACT_GET_USER_QUOTA: unsupported single or "
2130                         "compound sid format\n");
2131                 nt_status = NT_STATUS_INVALID_PARAMETER;
2132                 goto error;
2133         }
2134
2135         /* maybe we can check the quota_fnum */
2136         fsp = file_fsp(req, info.fid);
2137         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2138                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2139                 nt_status = NT_STATUS_INVALID_HANDLE;
2140                 goto error;
2141         }
2142         nt_status = smbd_do_query_getinfo_quota(tmp_ctx,
2143                                   fsp,
2144                                   info.restart_scan,
2145                                   info.return_single_entry,
2146                                   info.sid_list_length,
2147                                   &blob,
2148                                   max_data_count,
2149                                   &resp_data,
2150                                   &resp_len);
2151         if (!NT_STATUS_IS_OK(nt_status)) {
2152                 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_MORE_ENTRIES)) {
2153                         goto error;
2154                 }
2155                 nt_status = NT_STATUS_OK;
2156         }
2157
2158         param_len = 4;
2159         params = nttrans_realloc(ppparams, param_len);
2160         if(params == NULL) {
2161                 nt_status = NT_STATUS_NO_MEMORY;
2162                 goto error;
2163         }
2164
2165         data_len = resp_len;
2166         SIVAL(params, 0, data_len);
2167         pdata = nttrans_realloc(ppdata, data_len);
2168         memcpy(pdata, resp_data, data_len);
2169
2170         TALLOC_FREE(tmp_ctx);
2171         send_nt_replies(conn, req, nt_status, params, param_len,
2172                         pdata, data_len);
2173         return;
2174 error:
2175         TALLOC_FREE(tmp_ctx);
2176         reply_nterror(req, nt_status);
2177 }
2178
2179 /****************************************************************************
2180  Reply to set user quota
2181 ****************************************************************************/
2182
2183 static void call_nt_transact_set_user_quota(connection_struct *conn,
2184                                             struct smb_request *req,
2185                                             uint16_t **ppsetup,
2186                                             uint32_t setup_count,
2187                                             char **ppparams,
2188                                             uint32_t parameter_count,
2189                                             char **ppdata,
2190                                             uint32_t data_count,
2191                                             uint32_t max_data_count)
2192 {
2193         const struct loadparm_substitution *lp_sub =
2194                 loadparm_s3_global_substitution();
2195         char *params = *ppparams;
2196         char *pdata = *ppdata;
2197         int data_len=0,param_len=0;
2198         SMB_NTQUOTA_STRUCT qt;
2199         struct file_quota_information info = {0};
2200         enum ndr_err_code err;
2201         struct dom_sid sid;
2202         DATA_BLOB inblob;
2203         files_struct *fsp = NULL;
2204         TALLOC_CTX *ctx = NULL;
2205         NTSTATUS status = NT_STATUS_OK;
2206         ZERO_STRUCT(qt);
2207
2208         /* access check */
2209         if (get_current_uid(conn) != sec_initial_uid()) {
2210                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2211                          "[%s]\n", lp_servicename(talloc_tos(), lp_sub, SNUM(conn)),
2212                          conn->session_info->unix_info->unix_name));
2213                 status = NT_STATUS_ACCESS_DENIED;
2214                 goto error;
2215         }
2216
2217         /*
2218          * Ensure minimum number of parameters sent.
2219          */
2220
2221         if (parameter_count < 2) {
2222                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2223                 status = NT_STATUS_INVALID_PARAMETER;
2224                 goto error;
2225         }
2226
2227         /* maybe we can check the quota_fnum */
2228         fsp = file_fsp(req, SVAL(params,0));
2229         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2230                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2231                 status = NT_STATUS_INVALID_HANDLE;
2232                 goto error;
2233         }
2234
2235         ctx = talloc_init("set_user_quota");
2236         if (!ctx) {
2237                 status = NT_STATUS_NO_MEMORY;
2238                 goto error;
2239         }
2240         inblob.data = (uint8_t*)pdata;
2241         inblob.length = data_count;
2242
2243         err = ndr_pull_struct_blob(
2244                         &inblob,
2245                         ctx,
2246                         &info,
2247                         (ndr_pull_flags_fn_t)ndr_pull_file_quota_information);
2248
2249         if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2250                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: failed to pull "
2251                          "file_quota_information\n"));
2252                 status = NT_STATUS_INVALID_PARAMETER;
2253                 goto error;
2254         }
2255         qt.usedspace = info.quota_used;
2256
2257         qt.softlim = info.quota_threshold;
2258
2259         qt.hardlim = info.quota_limit;
2260
2261         sid = info.sid;
2262
2263         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2264                 status = NT_STATUS_INTERNAL_ERROR;
2265                 goto error;
2266         }
2267
2268         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2269                         pdata, data_len);
2270         TALLOC_FREE(ctx);
2271         return;
2272 error:
2273         TALLOC_FREE(ctx);
2274         reply_nterror(req, status);
2275 }
2276 #endif /* HAVE_SYS_QUOTAS */
2277
2278 static void handle_nttrans(connection_struct *conn,
2279                            struct trans_state *state,
2280                            struct smb_request *req)
2281 {
2282         struct smbXsrv_connection *xconn = req->xconn;
2283
2284         if (xconn->protocol >= PROTOCOL_NT1) {
2285                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2286                 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2287         }
2288
2289
2290         /* Now we must call the relevant NT_TRANS function */
2291         switch(state->call) {
2292                 case NT_TRANSACT_CREATE:
2293                 {
2294                         START_PROFILE(NT_transact_create);
2295                         call_nt_transact_create(
2296                                 conn, req,
2297                                 &state->setup, state->setup_count,
2298                                 &state->param, state->total_param,
2299                                 &state->data, state->total_data,
2300                                 state->max_data_return);
2301                         END_PROFILE(NT_transact_create);
2302                         break;
2303                 }
2304
2305                 case NT_TRANSACT_IOCTL:
2306                 {
2307                         START_PROFILE(NT_transact_ioctl);
2308                         call_nt_transact_ioctl(
2309                                 conn, req,
2310                                 &state->setup, state->setup_count,
2311                                 &state->param, state->total_param,
2312                                 &state->data, state->total_data,
2313                                 state->max_data_return);
2314                         END_PROFILE(NT_transact_ioctl);
2315                         break;
2316                 }
2317
2318                 case NT_TRANSACT_SET_SECURITY_DESC:
2319                 {
2320                         START_PROFILE(NT_transact_set_security_desc);
2321                         call_nt_transact_set_security_desc(
2322                                 conn, req,
2323                                 &state->setup, state->setup_count,
2324                                 &state->param, state->total_param,
2325                                 &state->data, state->total_data,
2326                                 state->max_data_return);
2327                         END_PROFILE(NT_transact_set_security_desc);
2328                         break;
2329                 }
2330
2331                 case NT_TRANSACT_NOTIFY_CHANGE:
2332                 {
2333                         START_PROFILE(NT_transact_notify_change);
2334                         call_nt_transact_notify_change(
2335                                 conn, req,
2336                                 &state->setup, state->setup_count,
2337                                 &state->param, state->total_param,
2338                                 &state->data, state->total_data,
2339                                 state->max_data_return,
2340                                 state->max_param_return);
2341                         END_PROFILE(NT_transact_notify_change);
2342                         break;
2343                 }
2344
2345                 case NT_TRANSACT_RENAME:
2346                 {
2347                         START_PROFILE(NT_transact_rename);
2348                         call_nt_transact_rename(
2349                                 conn, req,
2350                                 &state->setup, state->setup_count,
2351                                 &state->param, state->total_param,
2352                                 &state->data, state->total_data,
2353                                 state->max_data_return);
2354                         END_PROFILE(NT_transact_rename);
2355                         break;
2356                 }
2357
2358                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2359                 {
2360                         START_PROFILE(NT_transact_query_security_desc);
2361                         call_nt_transact_query_security_desc(
2362                                 conn, req,
2363                                 &state->setup, state->setup_count,
2364                                 &state->param, state->total_param,
2365                                 &state->data, state->total_data,
2366                                 state->max_data_return);
2367                         END_PROFILE(NT_transact_query_security_desc);
2368                         break;
2369                 }
2370
2371 #ifdef HAVE_SYS_QUOTAS
2372                 case NT_TRANSACT_GET_USER_QUOTA:
2373                 {
2374                         START_PROFILE(NT_transact_get_user_quota);
2375                         call_nt_transact_get_user_quota(
2376                                 conn, req,
2377                                 &state->setup, state->setup_count,
2378                                 &state->param, state->total_param,
2379                                 &state->data, state->total_data,
2380                                 state->max_data_return);
2381                         END_PROFILE(NT_transact_get_user_quota);
2382                         break;
2383                 }
2384
2385                 case NT_TRANSACT_SET_USER_QUOTA:
2386                 {
2387                         START_PROFILE(NT_transact_set_user_quota);
2388                         call_nt_transact_set_user_quota(
2389                                 conn, req,
2390                                 &state->setup, state->setup_count,
2391                                 &state->param, state->total_param,
2392                                 &state->data, state->total_data,
2393                                 state->max_data_return);
2394                         END_PROFILE(NT_transact_set_user_quota);
2395                         break;
2396                 }
2397 #endif /* HAVE_SYS_QUOTAS */
2398
2399                 default:
2400                         /* Error in request */
2401                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2402                                  "nttrans call\n", state->call));
2403                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2404                         return;
2405         }
2406         return;
2407 }
2408
2409 /****************************************************************************
2410  Reply to a SMBNTtrans.
2411 ****************************************************************************/
2412
2413 void reply_nttrans(struct smb_request *req)
2414 {
2415         connection_struct *conn = req->conn;
2416         uint32_t pscnt;
2417         uint32_t psoff;
2418         uint32_t dscnt;
2419         uint32_t dsoff;
2420         uint16_t function_code;
2421         NTSTATUS result;
2422         struct trans_state *state;
2423
2424         START_PROFILE(SMBnttrans);
2425
2426         if (req->wct < 19) {
2427                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2428                 END_PROFILE(SMBnttrans);
2429                 return;
2430         }
2431
2432         pscnt = IVAL(req->vwv+9, 1);
2433         psoff = IVAL(req->vwv+11, 1);
2434         dscnt = IVAL(req->vwv+13, 1);
2435         dsoff = IVAL(req->vwv+15, 1);
2436         function_code = SVAL(req->vwv+18, 0);
2437
2438         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2439                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2440                 END_PROFILE(SMBnttrans);
2441                 return;
2442         }
2443
2444         result = allow_new_trans(conn->pending_trans, req->mid);
2445         if (!NT_STATUS_IS_OK(result)) {
2446                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2447                 reply_nterror(req, result);
2448                 END_PROFILE(SMBnttrans);
2449                 return;
2450         }
2451
2452         if ((state = talloc(conn, struct trans_state)) == NULL) {
2453                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2454                 END_PROFILE(SMBnttrans);
2455                 return;
2456         }
2457
2458         state->cmd = SMBnttrans;
2459
2460         state->mid = req->mid;
2461         state->vuid = req->vuid;
2462         state->total_data = IVAL(req->vwv+3, 1);
2463         state->data = NULL;
2464         state->total_param = IVAL(req->vwv+1, 1);
2465         state->param = NULL;
2466         state->max_data_return = IVAL(req->vwv+7, 1);
2467         state->max_param_return = IVAL(req->vwv+5, 1);
2468
2469         /* setup count is in *words* */
2470         state->setup_count = 2*CVAL(req->vwv+17, 1);
2471         state->setup = NULL;
2472         state->call = function_code;
2473
2474         DEBUG(10, ("num_setup=%u, "
2475                    "param_total=%u, this_param=%u, max_param=%u, "
2476                    "data_total=%u, this_data=%u, max_data=%u, "
2477                    "param_offset=%u, data_offset=%u\n",
2478                    (unsigned)state->setup_count,
2479                    (unsigned)state->total_param, (unsigned)pscnt,
2480                    (unsigned)state->max_param_return,
2481                    (unsigned)state->total_data, (unsigned)dscnt,
2482                    (unsigned)state->max_data_return,
2483                    (unsigned)psoff, (unsigned)dsoff));
2484
2485         /*
2486          * All nttrans messages we handle have smb_wct == 19 +
2487          * state->setup_count.  Ensure this is so as a sanity check.
2488          */
2489
2490         if(req->wct != 19 + (state->setup_count/2)) {
2491                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2492                          req->wct, 19 + (state->setup_count/2)));
2493                 goto bad_param;
2494         }
2495
2496         /* Don't allow more than 128mb for each value. */
2497         if ((state->total_data > (1024*1024*128)) ||
2498             (state->total_param > (1024*1024*128))) {
2499                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2500                 END_PROFILE(SMBnttrans);
2501                 return;
2502         }
2503
2504         if ((dscnt > state->total_data) || (pscnt > state->total_param))
2505                 goto bad_param;
2506
2507         if (state->total_data)  {
2508
2509                 if (smb_buffer_oob(state->total_data, 0, dscnt)
2510                     || smb_buffer_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2511                         goto bad_param;
2512                 }
2513
2514                 /* Can't use talloc here, the core routines do realloc on the
2515                  * params and data. */
2516                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2517                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
2518                                  "bytes !\n", (unsigned int)state->total_data));
2519                         TALLOC_FREE(state);
2520                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2521                         END_PROFILE(SMBnttrans);
2522                         return;
2523                 }
2524
2525                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2526         }
2527
2528         if (state->total_param) {
2529
2530                 if (smb_buffer_oob(state->total_param, 0, pscnt)
2531                     || smb_buffer_oob(smb_len(req->inbuf), psoff, pscnt)) {
2532                         goto bad_param;
2533                 }
2534
2535                 /* Can't use talloc here, the core routines do realloc on the
2536                  * params and data. */
2537                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2538                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
2539                                  "bytes !\n", (unsigned int)state->total_param));
2540                         SAFE_FREE(state->data);
2541                         TALLOC_FREE(state);
2542                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2543                         END_PROFILE(SMBnttrans);
2544                         return;
2545                 }
2546
2547                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2548         }
2549
2550         state->received_data  = dscnt;
2551         state->received_param = pscnt;
2552
2553         if(state->setup_count > 0) {
2554                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2555                           state->setup_count));
2556
2557                 /*
2558                  * No overflow possible here, state->setup_count is an
2559                  * unsigned int, being filled by a single byte from
2560                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
2561                  * below is not necessary, it's here to clarify things. The
2562                  * validity of req->vwv and req->wct has been checked in
2563                  * init_smb1_request already.
2564                  */
2565                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2566                         goto bad_param;
2567                 }
2568
2569                 state->setup = (uint16_t *)TALLOC(state, state->setup_count);
2570                 if (state->setup == NULL) {
2571                         DEBUG(0,("reply_nttrans : Out of memory\n"));
2572                         SAFE_FREE(state->data);
2573                         SAFE_FREE(state->param);
2574                         TALLOC_FREE(state);
2575                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2576                         END_PROFILE(SMBnttrans);
2577                         return;
2578                 }
2579
2580                 memcpy(state->setup, req->vwv+19, state->setup_count);
2581                 dump_data(10, (uint8_t *)state->setup, state->setup_count);
2582         }
2583
2584         if ((state->received_data == state->total_data) &&
2585             (state->received_param == state->total_param)) {
2586                 handle_nttrans(conn, state, req);
2587                 SAFE_FREE(state->param);
2588                 SAFE_FREE(state->data);
2589                 TALLOC_FREE(state);
2590                 END_PROFILE(SMBnttrans);
2591                 return;
2592         }
2593
2594         DLIST_ADD(conn->pending_trans, state);
2595
2596         /* We need to send an interim response then receive the rest
2597            of the parameter/data bytes */
2598         reply_smb1_outbuf(req, 0, 0);
2599         show_msg((char *)req->outbuf);
2600         END_PROFILE(SMBnttrans);
2601         return;
2602
2603   bad_param:
2604
2605         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2606         SAFE_FREE(state->data);
2607         SAFE_FREE(state->param);
2608         TALLOC_FREE(state);
2609         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2610         END_PROFILE(SMBnttrans);
2611         return;
2612 }
2613
2614 /****************************************************************************
2615  Reply to a SMBnttranss
2616  ****************************************************************************/
2617
2618 void reply_nttranss(struct smb_request *req)
2619 {
2620         connection_struct *conn = req->conn;
2621         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2622         struct trans_state *state;
2623
2624         START_PROFILE(SMBnttranss);
2625
2626         show_msg((const char *)req->inbuf);
2627
2628         /* Windows clients expect all replies to
2629            an NT transact secondary (SMBnttranss 0xA1)
2630            to have a command code of NT transact
2631            (SMBnttrans 0xA0). See bug #8989 for details. */
2632         req->cmd = SMBnttrans;
2633
2634         if (req->wct < 18) {
2635                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2636                 END_PROFILE(SMBnttranss);
2637                 return;
2638         }
2639
2640         for (state = conn->pending_trans; state != NULL;
2641              state = state->next) {
2642                 if (state->mid == req->mid) {
2643                         break;
2644                 }
2645         }
2646
2647         if ((state == NULL) || (state->cmd != SMBnttrans)) {
2648                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2649                 END_PROFILE(SMBnttranss);
2650                 return;
2651         }
2652
2653         /* Revise state->total_param and state->total_data in case they have
2654            changed downwards */
2655         if (IVAL(req->vwv+1, 1) < state->total_param) {
2656                 state->total_param = IVAL(req->vwv+1, 1);
2657         }
2658         if (IVAL(req->vwv+3, 1) < state->total_data) {
2659                 state->total_data = IVAL(req->vwv+3, 1);
2660         }
2661
2662         pcnt = IVAL(req->vwv+5, 1);
2663         poff = IVAL(req->vwv+7, 1);
2664         pdisp = IVAL(req->vwv+9, 1);
2665
2666         dcnt = IVAL(req->vwv+11, 1);
2667         doff = IVAL(req->vwv+13, 1);
2668         ddisp = IVAL(req->vwv+15, 1);
2669
2670         state->received_param += pcnt;
2671         state->received_data += dcnt;
2672
2673         if ((state->received_data > state->total_data) ||
2674             (state->received_param > state->total_param))
2675                 goto bad_param;
2676
2677         if (pcnt) {
2678                 if (smb_buffer_oob(state->total_param, pdisp, pcnt)
2679                     || smb_buffer_oob(smb_len(req->inbuf), poff, pcnt)) {
2680                         goto bad_param;
2681                 }
2682                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2683         }
2684
2685         if (dcnt) {
2686                 if (smb_buffer_oob(state->total_data, ddisp, dcnt)
2687                     || smb_buffer_oob(smb_len(req->inbuf), doff, dcnt)) {
2688                         goto bad_param;
2689                 }
2690                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2691         }
2692
2693         if ((state->received_param < state->total_param) ||
2694             (state->received_data < state->total_data)) {
2695                 END_PROFILE(SMBnttranss);
2696                 return;
2697         }
2698
2699         handle_nttrans(conn, state, req);
2700
2701         DLIST_REMOVE(conn->pending_trans, state);
2702         SAFE_FREE(state->data);
2703         SAFE_FREE(state->param);
2704         TALLOC_FREE(state);
2705         END_PROFILE(SMBnttranss);
2706         return;
2707
2708   bad_param:
2709
2710         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2711         DLIST_REMOVE(conn->pending_trans, state);
2712         SAFE_FREE(state->data);
2713         SAFE_FREE(state->param);
2714         TALLOC_FREE(state);
2715         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2716         END_PROFILE(SMBnttranss);
2717         return;
2718 }