source3/smbd/nttrans.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB NT transaction handling
   4    Copyright (C) Jeremy Allison                 1994-2007
   5    Copyright (C) Stefan (metze) Metzmacher      2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "system/filesys.h"
  23 #include "smbd/smbd.h"
  24 #include "smbd/globals.h"
  25 #include "fake_file.h"
  26 #include "../libcli/security/security.h"
  27 #include "../librpc/gen_ndr/ndr_security.h"
  28 #include "passdb/lookup_sid.h"
  29 #include "auth.h"
  30 #include "smbprofile.h"
  31 #include "libsmb/libsmb.h"
  32
  33 extern const struct generic_mapping file_generic_mapping;
  34
  35 static char *nttrans_realloc(char **ptr, size_t size)
  36 {
  37         if (ptr==NULL) {
  38                 smb_panic("nttrans_realloc() called with NULL ptr");
  39         }
  40
  41         *ptr = (char *)SMB_REALLOC(*ptr, size);
  42         if(*ptr == NULL) {
  43                 return NULL;
  44         }
  45         memset(*ptr,'\0',size);
  46         return *ptr;
  47 }
  48
  49 /****************************************************************************
  50  Send the required number of replies back.
  51  We assume all fields other than the data fields are
  52  set correctly for the type of call.
  53  HACK ! Always assumes smb_setup field is zero.
  54 ****************************************************************************/
  55
  56 static void send_nt_replies(connection_struct *conn,
  57                             struct smb_request *req, NTSTATUS nt_error,
  58                             char *params, int paramsize,
  59                             char *pdata, int datasize)
  60 {
  61         int data_to_send = datasize;
  62         int params_to_send = paramsize;
  63         int useable_space;
  64         char *pp = params;
  65         char *pd = pdata;
  66         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  67         int alignment_offset = 1;
  68         int data_alignment_offset = 0;
  69         struct smbd_server_connection *sconn = req->sconn;
  70         int max_send = sconn->smb1.sessions.max_send;
  71
  72         /*
  73          * If there genuinely are no parameters or data to send just send
  74          * the empty packet.
  75          */
  76
  77         if(params_to_send == 0 && data_to_send == 0) {
  78                 reply_outbuf(req, 18, 0);
  79                 if (NT_STATUS_V(nt_error)) {
  80                         error_packet_set((char *)req->outbuf,
  81                                          0, 0, nt_error,
  82                                          __LINE__,__FILE__);
  83                 }
  84                 show_msg((char *)req->outbuf);
  85                 if (!srv_send_smb(sconn,
  86                                 (char *)req->outbuf,
  87                                 true, req->seqnum+1,
  88                                 IS_CONN_ENCRYPTED(conn),
  89                                 &req->pcd)) {
  90                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
  91                 }
  92                 TALLOC_FREE(req->outbuf);
  93                 return;
  94         }
  95
  96         /*
  97          * When sending params and data ensure that both are nicely aligned.
  98          * Only do this alignment when there is also data to send - else
  99          * can cause NT redirector problems.
 100          */
 101
 102         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
 103                 data_alignment_offset = 4 - (params_to_send % 4);
 104         }
 105
 106         /*
 107          * Space is bufsize minus Netbios over TCP header minus SMB header.
 108          * The alignment_offset is to align the param bytes on a four byte
 109          * boundary (2 bytes for data len, one byte pad).
 110          * NT needs this to work correctly.
 111          */
 112
 113         useable_space = max_send - (smb_size
 114                                     + 2 * 18 /* wct */
 115                                     + alignment_offset
 116                                     + data_alignment_offset);
 117
 118         if (useable_space < 0) {
 119                 char *msg = talloc_asprintf(
 120                         talloc_tos(),
 121                         "send_nt_replies failed sanity useable_space = %d!!!",
 122                         useable_space);
 123                 DEBUG(0, ("%s\n", msg));
 124                 exit_server_cleanly(msg);
 125         }
 126
 127         while (params_to_send || data_to_send) {
 128
 129                 /*
 130                  * Calculate whether we will totally or partially fill this packet.
 131                  */
 132
 133                 total_sent_thistime = params_to_send + data_to_send;
 134
 135                 /*
 136                  * We can never send more than useable_space.
 137                  */
 138
 139                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 140
 141                 reply_outbuf(req, 18,
 142                              total_sent_thistime + alignment_offset
 143                              + data_alignment_offset);
 144
 145                 /*
 146                  * Set total params and data to be sent.
 147                  */
 148
 149                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 150                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 151
 152                 /*
 153                  * Calculate how many parameters and data we can fit into
 154                  * this packet. Parameters get precedence.
 155                  */
 156
 157                 params_sent_thistime = MIN(params_to_send,useable_space);
 158                 data_sent_thistime = useable_space - params_sent_thistime;
 159                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 160
 161                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 162                       params_sent_thistime);
 163
 164                 if(params_sent_thistime == 0) {
 165                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 166                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 167                 } else {
 168                         /*
 169                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 170                          * parameter bytes, however the first 4 bytes of outbuf are
 171                          * the Netbios over TCP header. Thus use smb_base() to subtract
 172                          * them from the calculation.
 173                          */
 174
 175                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 176                               ((smb_buf(req->outbuf)+alignment_offset)
 177                                - smb_base(req->outbuf)));
 178                         /*
 179                          * Absolute displacement of param bytes sent in this packet.
 180                          */
 181
 182                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 183                               pp - params);
 184                 }
 185
 186                 /*
 187                  * Deal with the data portion.
 188                  */
 189
 190                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 191
 192                 if(data_sent_thistime == 0) {
 193                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 194                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 195                 } else {
 196                         /*
 197                          * The offset of the data bytes is the offset of the
 198                          * parameter bytes plus the number of parameters being sent this time.
 199                          */
 200
 201                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 202                               ((smb_buf(req->outbuf)+alignment_offset) -
 203                                smb_base(req->outbuf))
 204                               + params_sent_thistime + data_alignment_offset);
 205                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 206                 }
 207
 208                 /*
 209                  * Copy the param bytes into the packet.
 210                  */
 211
 212                 if(params_sent_thistime) {
 213                         if (alignment_offset != 0) {
 214                                 memset(smb_buf(req->outbuf), 0,
 215                                        alignment_offset);
 216                         }
 217                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 218                                params_sent_thistime);
 219                 }
 220
 221                 /*
 222                  * Copy in the data bytes
 223                  */
 224
 225                 if(data_sent_thistime) {
 226                         if (data_alignment_offset != 0) {
 227                                 memset((smb_buf(req->outbuf)+alignment_offset+
 228                                         params_sent_thistime), 0,
 229                                        data_alignment_offset);
 230                         }
 231                         memcpy(smb_buf(req->outbuf)+alignment_offset
 232                                +params_sent_thistime+data_alignment_offset,
 233                                pd,data_sent_thistime);
 234                 }
 235
 236                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 237                         params_sent_thistime, data_sent_thistime, useable_space));
 238                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 239                         params_to_send, data_to_send, paramsize, datasize));
 240
 241                 if (NT_STATUS_V(nt_error)) {
 242                         error_packet_set((char *)req->outbuf,
 243                                          0, 0, nt_error,
 244                                          __LINE__,__FILE__);
 245                 }
 246
 247                 /* Send the packet */
 248                 show_msg((char *)req->outbuf);
 249                 if (!srv_send_smb(sconn,
 250                                 (char *)req->outbuf,
 251                                 true, req->seqnum+1,
 252                                 IS_CONN_ENCRYPTED(conn),
 253                                 &req->pcd)) {
 254                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 255                 }
 256
 257                 TALLOC_FREE(req->outbuf);
 258
 259                 pp += params_sent_thistime;
 260                 pd += data_sent_thistime;
 261
 262                 params_to_send -= params_sent_thistime;
 263                 data_to_send -= data_sent_thistime;
 264
 265                 /*
 266                  * Sanity check
 267                  */
 268
 269                 if(params_to_send < 0 || data_to_send < 0) {
 270                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 271                                 params_to_send, data_to_send));
 272                         exit_server_cleanly("send_nt_replies: internal error");
 273                 }
 274         }
 275 }
 276
 277 /****************************************************************************
 278  Reply to an NT create and X call on a pipe
 279 ****************************************************************************/
 280
 281 static void nt_open_pipe(char *fname, connection_struct *conn,
 282                          struct smb_request *req, uint16_t *ppnum)
 283 {
 284         files_struct *fsp;
 285         NTSTATUS status;
 286
 287         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 288
 289         /* Strip \\ off the name if present. */
 290         while (fname[0] == '\\') {
 291                 fname++;
 292         }
 293
 294         status = open_np_file(req, fname, &fsp);
 295         if (!NT_STATUS_IS_OK(status)) {
 296                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 297                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 298                                         ERRDOS, ERRbadpipe);
 299                         return;
 300                 }
 301                 reply_nterror(req, status);
 302                 return;
 303         }
 304
 305         *ppnum = fsp->fnum;
 306         return;
 307 }
 308
 309 /****************************************************************************
 310  Reply to an NT create and X call for pipes.
 311 ****************************************************************************/
 312
 313 static void do_ntcreate_pipe_open(connection_struct *conn,
 314                                   struct smb_request *req)
 315 {
 316         char *fname = NULL;
 317         uint16_t pnum = FNUM_FIELD_INVALID;
 318         char *p = NULL;
 319         uint32 flags = IVAL(req->vwv+3, 1);
 320         TALLOC_CTX *ctx = talloc_tos();
 321
 322         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
 323
 324         if (!fname) {
 325                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 326                                 ERRDOS, ERRbadpipe);
 327                 return;
 328         }
 329         nt_open_pipe(fname, conn, req, &pnum);
 330
 331         if (req->outbuf) {
 332                 /* error reply */
 333                 return;
 334         }
 335
 336         /*
 337          * Deal with pipe return.
 338          */
 339
 340         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 341                 /* This is very strange. We
 342                  * return 50 words, but only set
 343                  * the wcnt to 42 ? It's definitely
 344                  * what happens on the wire....
 345                  */
 346                 reply_outbuf(req, 50, 0);
 347                 SCVAL(req->outbuf,smb_wct,42);
 348         } else {
 349                 reply_outbuf(req, 34, 0);
 350         }
 351
 352         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 353         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 354
 355         p = (char *)req->outbuf + smb_vwv2;
 356         p++;
 357         SSVAL(p,0,pnum);
 358         p += 2;
 359         SIVAL(p,0,FILE_WAS_OPENED);
 360         p += 4;
 361         p += 32;
 362         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 363         p += 20;
 364         /* File type. */
 365         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 366         /* Device state. */
 367         SSVAL(p,2, 0x5FF); /* ? */
 368         p += 4;
 369
 370         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 371                 p += 25;
 372                 SIVAL(p,0,FILE_GENERIC_ALL);
 373                 /*
 374                  * For pipes W2K3 seems to return
 375                  * 0x12019B next.
 376                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 377                  */
 378                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 379         }
 380
 381         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 382 }
 383
 384 struct case_semantics_state {
 385         connection_struct *conn;
 386         bool case_sensitive;
 387         bool case_preserve;
 388         bool short_case_preserve;
 389 };
 390
 391 /****************************************************************************
 392  Restore case semantics.
 393 ****************************************************************************/
 394
 395 static int restore_case_semantics(struct case_semantics_state *state)
 396 {
 397         state->conn->case_sensitive = state->case_sensitive;
 398         state->conn->case_preserve = state->case_preserve;
 399         state->conn->short_case_preserve = state->short_case_preserve;
 400         return 0;
 401 }
 402
 403 /****************************************************************************
 404  Save case semantics.
 405 ****************************************************************************/
 406
 407 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 408                                                 connection_struct *conn)
 409 {
 410         struct case_semantics_state *result;
 411
 412         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 413                 return NULL;
 414         }
 415
 416         result->conn = conn;
 417         result->case_sensitive = conn->case_sensitive;
 418         result->case_preserve = conn->case_preserve;
 419         result->short_case_preserve = conn->short_case_preserve;
 420
 421         /* Set to POSIX. */
 422         conn->case_sensitive = True;
 423         conn->case_preserve = True;
 424         conn->short_case_preserve = True;
 425
 426         talloc_set_destructor(result, restore_case_semantics);
 427
 428         return result;
 429 }
 430
 431 /****************************************************************************
 432  Reply to an NT create and X call.
 433 ****************************************************************************/
 434
 435 void reply_ntcreate_and_X(struct smb_request *req)
 436 {
 437         connection_struct *conn = req->conn;
 438         struct smb_filename *smb_fname = NULL;
 439         char *fname = NULL;
 440         uint32 flags;
 441         uint32 access_mask;
 442         uint32 file_attributes;
 443         uint32 share_access;
 444         uint32 create_disposition;
 445         uint32 create_options;
 446         uint16 root_dir_fid;
 447         uint64_t allocation_size;
 448         /* Breakout the oplock request bits so we can set the
 449            reply bits separately. */
 450         uint32 fattr=0;
 451         off_t file_len = 0;
 452         int info = 0;
 453         files_struct *fsp = NULL;
 454         char *p = NULL;
 455         struct timespec create_timespec;
 456         struct timespec c_timespec;
 457         struct timespec a_timespec;
 458         struct timespec m_timespec;
 459         struct timespec write_time_ts;
 460         NTSTATUS status;
 461         int oplock_request;
 462         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 463         struct case_semantics_state *case_state = NULL;
 464         TALLOC_CTX *ctx = talloc_tos();
 465
 466         START_PROFILE(SMBntcreateX);
 467
 468         if (req->wct < 24) {
 469                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 470                 goto out;
 471         }
 472
 473         flags = IVAL(req->vwv+3, 1);
 474         access_mask = IVAL(req->vwv+7, 1);
 475         file_attributes = IVAL(req->vwv+13, 1);
 476         share_access = IVAL(req->vwv+15, 1);
 477         create_disposition = IVAL(req->vwv+17, 1);
 478         create_options = IVAL(req->vwv+19, 1);
 479         root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
 480
 481         allocation_size = BVAL(req->vwv+9, 1);
 482
 483         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 484                             STR_TERMINATE, &status);
 485
 486         if (!NT_STATUS_IS_OK(status)) {
 487                 reply_nterror(req, status);
 488                 goto out;
 489         }
 490
 491         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 492                   "file_attributes = 0x%x, share_access = 0x%x, "
 493                   "create_disposition = 0x%x create_options = 0x%x "
 494                   "root_dir_fid = 0x%x, fname = %s\n",
 495                         (unsigned int)flags,
 496                         (unsigned int)access_mask,
 497                         (unsigned int)file_attributes,
 498                         (unsigned int)share_access,
 499                         (unsigned int)create_disposition,
 500                         (unsigned int)create_options,
 501                         (unsigned int)root_dir_fid,
 502                         fname));
 503
 504         /*
 505          * we need to remove ignored bits when they come directly from the client
 506          * because we reuse some of them for internal stuff
 507          */
 508         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 509
 510         /*
 511          * If it's an IPC, use the pipe handler.
 512          */
 513
 514         if (IS_IPC(conn)) {
 515                 if (lp_nt_pipe_support()) {
 516                         do_ntcreate_pipe_open(conn, req);
 517                         goto out;
 518                 }
 519                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 520                 goto out;
 521         }
 522
 523         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 524         if (oplock_request) {
 525                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 526                         ? BATCH_OPLOCK : 0;
 527         }
 528
 529         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 530                 case_state = set_posix_case_semantics(ctx, conn);
 531                 if (!case_state) {
 532                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 533                         goto out;
 534                 }
 535         }
 536
 537         status = filename_convert(ctx,
 538                                 conn,
 539                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 540                                 fname,
 541                                 0,
 542                                 NULL,
 543                                 &smb_fname);
 544
 545         TALLOC_FREE(case_state);
 546
 547         if (!NT_STATUS_IS_OK(status)) {
 548                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 549                         reply_botherror(req,
 550                                 NT_STATUS_PATH_NOT_COVERED,
 551                                 ERRSRV, ERRbadpath);
 552                         goto out;
 553                 }
 554                 reply_nterror(req, status);
 555                 goto out;
 556         }
 557
 558         /*
 559          * Bug #6898 - clients using Windows opens should
 560          * never be able to set this attribute into the
 561          * VFS.
 562          */
 563         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 564
 565         status = SMB_VFS_CREATE_FILE(
 566                 conn,                                   /* conn */
 567                 req,                                    /* req */
 568                 root_dir_fid,                           /* root_dir_fid */
 569                 smb_fname,                              /* fname */
 570                 access_mask,                            /* access_mask */
 571                 share_access,                           /* share_access */
 572                 create_disposition,                     /* create_disposition*/
 573                 create_options,                         /* create_options */
 574                 file_attributes,                        /* file_attributes */
 575                 oplock_request,                         /* oplock_request */
 576                 allocation_size,                        /* allocation_size */
 577                 0,                                      /* private_flags */
 578                 NULL,                                   /* sd */
 579                 NULL,                                   /* ea_list */
 580                 &fsp,                                   /* result */
 581                 &info);                                 /* pinfo */
 582
 583         if (!NT_STATUS_IS_OK(status)) {
 584                 if (open_was_deferred(req->sconn, req->mid)) {
 585                         /* We have re-scheduled this call, no error. */
 586                         goto out;
 587                 }
 588                 reply_openerror(req, status);
 589                 goto out;
 590         }
 591
 592         /* Ensure we're pointing at the correct stat struct. */
 593         TALLOC_FREE(smb_fname);
 594         smb_fname = fsp->fsp_name;
 595
 596         /*
 597          * If the caller set the extended oplock request bit
 598          * and we granted one (by whatever means) - set the
 599          * correct bit for extended oplock reply.
 600          */
 601
 602         if (oplock_request &&
 603             (lp_fake_oplocks(SNUM(conn))
 604              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 605
 606                 /*
 607                  * Exclusive oplock granted
 608                  */
 609
 610                 if (flags & REQUEST_BATCH_OPLOCK) {
 611                         oplock_granted = BATCH_OPLOCK_RETURN;
 612                 } else {
 613                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 614                 }
 615         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 616                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 617         } else {
 618                 oplock_granted = NO_OPLOCK_RETURN;
 619         }
 620
 621         file_len = smb_fname->st.st_ex_size;
 622
 623         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 624                 /* This is very strange. We
 625                  * return 50 words, but only set
 626                  * the wcnt to 42 ? It's definitely
 627                  * what happens on the wire....
 628                  */
 629                 reply_outbuf(req, 50, 0);
 630                 SCVAL(req->outbuf,smb_wct,42);
 631         } else {
 632                 reply_outbuf(req, 34, 0);
 633         }
 634
 635         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 636         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 637
 638         p = (char *)req->outbuf + smb_vwv2;
 639
 640         SCVAL(p, 0, oplock_granted);
 641
 642         p++;
 643         SSVAL(p,0,fsp->fnum);
 644         p += 2;
 645         if ((create_disposition == FILE_SUPERSEDE)
 646             && (info == FILE_WAS_OVERWRITTEN)) {
 647                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 648         } else {
 649                 SIVAL(p,0,info);
 650         }
 651         p += 4;
 652
 653         fattr = dos_mode(conn, smb_fname);
 654         if (fattr == 0) {
 655                 fattr = FILE_ATTRIBUTE_NORMAL;
 656         }
 657
 658         /* Deal with other possible opens having a modified
 659            write time. JRA. */
 660         ZERO_STRUCT(write_time_ts);
 661         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
 662         if (!null_timespec(write_time_ts)) {
 663                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
 664         }
 665
 666         /* Create time. */
 667         create_timespec = get_create_timespec(conn, fsp, smb_fname);
 668         a_timespec = smb_fname->st.st_ex_atime;
 669         m_timespec = smb_fname->st.st_ex_mtime;
 670         c_timespec = get_change_timespec(conn, fsp, smb_fname);
 671
 672         if (lp_dos_filetime_resolution(SNUM(conn))) {
 673                 dos_filetime_timespec(&create_timespec);
 674                 dos_filetime_timespec(&a_timespec);
 675                 dos_filetime_timespec(&m_timespec);
 676                 dos_filetime_timespec(&c_timespec);
 677         }
 678
 679         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
 680         p += 8;
 681         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
 682         p += 8;
 683         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
 684         p += 8;
 685         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
 686         p += 8;
 687         SIVAL(p,0,fattr); /* File Attributes. */
 688         p += 4;
 689         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 690         p += 8;
 691         SOFF_T(p,0,file_len);
 692         p += 8;
 693         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 694                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
 695                 size_t num_names = 0;
 696                 unsigned int num_streams = 0;
 697                 struct stream_struct *streams = NULL;
 698
 699                 /* Do we have any EA's ? */
 700                 status = get_ea_names_from_file(ctx, conn, fsp,
 701                                 smb_fname->base_name, NULL, &num_names);
 702                 if (NT_STATUS_IS_OK(status) && num_names) {
 703                         file_status &= ~NO_EAS;
 704                 }
 705                 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
 706                         &num_streams, &streams);
 707                 /* There is always one stream, ::$DATA. */
 708                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
 709                         file_status &= ~NO_SUBSTREAMS;
 710                 }
 711                 TALLOC_FREE(streams);
 712                 SSVAL(p,2,file_status);
 713         }
 714         p += 4;
 715         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 716
 717         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 718                 uint32 perms = 0;
 719                 p += 25;
 720                 if (fsp->is_directory ||
 721                     can_write_to_file(conn, smb_fname)) {
 722                         perms = FILE_GENERIC_ALL;
 723                 } else {
 724                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 725                 }
 726                 SIVAL(p,0,perms);
 727         }
 728
 729         DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
 730                 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
 731
 732  out:
 733         END_PROFILE(SMBntcreateX);
 734         return;
 735 }
 736
 737 /****************************************************************************
 738  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 739 ****************************************************************************/
 740
 741 static void do_nt_transact_create_pipe(connection_struct *conn,
 742                                        struct smb_request *req,
 743                                        uint16 **ppsetup, uint32 setup_count,
 744                                        char **ppparams, uint32 parameter_count,
 745                                        char **ppdata, uint32 data_count)
 746 {
 747         char *fname = NULL;
 748         char *params = *ppparams;
 749         uint16_t pnum = FNUM_FIELD_INVALID;
 750         char *p = NULL;
 751         NTSTATUS status;
 752         size_t param_len;
 753         uint32 flags;
 754         TALLOC_CTX *ctx = talloc_tos();
 755
 756         /*
 757          * Ensure minimum number of parameters sent.
 758          */
 759
 760         if(parameter_count < 54) {
 761                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 762                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 763                 return;
 764         }
 765
 766         flags = IVAL(params,0);
 767
 768         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
 769                         parameter_count-53, STR_TERMINATE,
 770                         &status);
 771         if (!NT_STATUS_IS_OK(status)) {
 772                 reply_nterror(req, status);
 773                 return;
 774         }
 775
 776         nt_open_pipe(fname, conn, req, &pnum);
 777
 778         if (req->outbuf) {
 779                 /* Error return */
 780                 return;
 781         }
 782
 783         /* Realloc the size of parameters and data we will return */
 784         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 785                 /* Extended response is 32 more byyes. */
 786                 param_len = 101;
 787         } else {
 788                 param_len = 69;
 789         }
 790         params = nttrans_realloc(ppparams, param_len);
 791         if(params == NULL) {
 792                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 793                 return;
 794         }
 795
 796         p = params;
 797         SCVAL(p,0,NO_OPLOCK_RETURN);
 798
 799         p += 2;
 800         SSVAL(p,0,pnum);
 801         p += 2;
 802         SIVAL(p,0,FILE_WAS_OPENED);
 803         p += 8;
 804
 805         p += 32;
 806         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 807         p += 20;
 808         /* File type. */
 809         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 810         /* Device state. */
 811         SSVAL(p,2, 0x5FF); /* ? */
 812         p += 4;
 813
 814         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 815                 p += 25;
 816                 SIVAL(p,0,FILE_GENERIC_ALL);
 817                 /*
 818                  * For pipes W2K3 seems to return
 819                  * 0x12019B next.
 820                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 821                  */
 822                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 823         }
 824
 825         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 826
 827         /* Send the required number of replies */
 828         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 829
 830         return;
 831 }
 832
 833 /*********************************************************************
 834  Windows seems to do canonicalization of inheritance bits. Do the
 835  same.
 836 *********************************************************************/
 837
 838 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
 839 {
 840         bool set_auto_inherited = false;
 841
 842         /*
 843          * We need to filter out the
 844          * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
 845          * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
 846          * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
 847          * when an ACE is inherited. Otherwise we zero these bits out.
 848          * See:
 849          *
 850          * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
 851          *
 852          * for details.
 853          */
 854
 855         if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
 856                         == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
 857                 set_auto_inherited = true;
 858         }
 859
 860         psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
 861         if (set_auto_inherited) {
 862                 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
 863         }
 864 }
 865
 866 /****************************************************************************
 867  Internal fn to set security descriptors.
 868 ****************************************************************************/
 869
 870 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
 871                        uint32_t security_info_sent)
 872 {
 873         NTSTATUS status;
 874
 875         if (!CAN_WRITE(fsp->conn)) {
 876                 return NT_STATUS_ACCESS_DENIED;
 877         }
 878
 879         if (!lp_nt_acl_support(SNUM(fsp->conn))) {
 880                 return NT_STATUS_OK;
 881         }
 882
 883         if (psd->owner_sid == NULL) {
 884                 security_info_sent &= ~SECINFO_OWNER;
 885         }
 886         if (psd->group_sid == NULL) {
 887                 security_info_sent &= ~SECINFO_GROUP;
 888         }
 889
 890         /* Ensure we have at least one thing set. */
 891         if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
 892                 if (security_info_sent & SECINFO_LABEL) {
 893                         /* Only consider SECINFO_LABEL if no other
 894                            bits are set. Just like W2K3 we don't
 895                            store this. */
 896                         return NT_STATUS_OK;
 897                 }
 898                 return NT_STATUS_INVALID_PARAMETER;
 899         }
 900
 901         /* Ensure we have the rights to do this. */
 902         if (security_info_sent & SECINFO_OWNER) {
 903                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 904                         return NT_STATUS_ACCESS_DENIED;
 905                 }
 906         }
 907
 908         if (security_info_sent & SECINFO_GROUP) {
 909                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 910                         return NT_STATUS_ACCESS_DENIED;
 911                 }
 912         }
 913
 914         if (security_info_sent & SECINFO_DACL) {
 915                 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
 916                         return NT_STATUS_ACCESS_DENIED;
 917                 }
 918                 /* Convert all the generic bits. */
 919                 if (psd->dacl) {
 920                         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 921                 }
 922         }
 923
 924         if (security_info_sent & SECINFO_SACL) {
 925                 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
 926                         return NT_STATUS_ACCESS_DENIED;
 927                 }
 928                 /* Convert all the generic bits. */
 929                 if (psd->sacl) {
 930                         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 931                 }
 932         }
 933
 934         canonicalize_inheritance_bits(psd);
 935
 936         if (DEBUGLEVEL >= 10) {
 937                 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
 938                 NDR_PRINT_DEBUG(security_descriptor, psd);
 939         }
 940
 941         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 942
 943         TALLOC_FREE(psd);
 944
 945         return status;
 946 }
 947
 948 /****************************************************************************
 949  Internal fn to set security descriptors from a data blob.
 950 ****************************************************************************/
 951
 952 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
 953                        uint32_t security_info_sent)
 954 {
 955         struct security_descriptor *psd = NULL;
 956         NTSTATUS status;
 957
 958         if (sd_len == 0) {
 959                 return NT_STATUS_INVALID_PARAMETER;
 960         }
 961
 962         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 963
 964         if (!NT_STATUS_IS_OK(status)) {
 965                 return status;
 966         }
 967
 968         return set_sd(fsp, psd, security_info_sent);
 969 }
 970
 971 /****************************************************************************
 972  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
 973 ****************************************************************************/
 974
 975 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
 976 {
 977         struct ea_list *ea_list_head = NULL;
 978         size_t offset = 0;
 979
 980         if (data_size < 4) {
 981                 return NULL;
 982         }
 983
 984         while (offset + 4 <= data_size) {
 985                 size_t next_offset = IVAL(pdata,offset);
 986                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
 987
 988                 if (!eal) {
 989                         return NULL;
 990                 }
 991
 992                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
 993                 if (next_offset == 0) {
 994                         break;
 995                 }
 996                 offset += next_offset;
 997         }
 998
 999         return ea_list_head;
1000 }
1001
1002 /****************************************************************************
1003  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1004 ****************************************************************************/
1005
1006 static void call_nt_transact_create(connection_struct *conn,
1007                                     struct smb_request *req,
1008                                     uint16 **ppsetup, uint32 setup_count,
1009                                     char **ppparams, uint32 parameter_count,
1010                                     char **ppdata, uint32 data_count,
1011                                     uint32 max_data_count)
1012 {
1013         struct smb_filename *smb_fname = NULL;
1014         char *fname = NULL;
1015         char *params = *ppparams;
1016         char *data = *ppdata;
1017         /* Breakout the oplock request bits so we can set the reply bits separately. */
1018         uint32 fattr=0;
1019         off_t file_len = 0;
1020         int info = 0;
1021         files_struct *fsp = NULL;
1022         char *p = NULL;
1023         uint32 flags;
1024         uint32 access_mask;
1025         uint32 file_attributes;
1026         uint32 share_access;
1027         uint32 create_disposition;
1028         uint32 create_options;
1029         uint32 sd_len;
1030         struct security_descriptor *sd = NULL;
1031         uint32 ea_len;
1032         uint16 root_dir_fid;
1033         struct timespec create_timespec;
1034         struct timespec c_timespec;
1035         struct timespec a_timespec;
1036         struct timespec m_timespec;
1037         struct timespec write_time_ts;
1038         struct ea_list *ea_list = NULL;
1039         NTSTATUS status;
1040         size_t param_len;
1041         uint64_t allocation_size;
1042         int oplock_request;
1043         uint8_t oplock_granted;
1044         struct case_semantics_state *case_state = NULL;
1045         TALLOC_CTX *ctx = talloc_tos();
1046
1047         DEBUG(5,("call_nt_transact_create\n"));
1048
1049         /*
1050          * If it's an IPC, use the pipe handler.
1051          */
1052
1053         if (IS_IPC(conn)) {
1054                 if (lp_nt_pipe_support()) {
1055                         do_nt_transact_create_pipe(
1056                                 conn, req,
1057                                 ppsetup, setup_count,
1058                                 ppparams, parameter_count,
1059                                 ppdata, data_count);
1060                         goto out;
1061                 }
1062                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1063                 goto out;
1064         }
1065
1066         /*
1067          * Ensure minimum number of parameters sent.
1068          */
1069
1070         if(parameter_count < 54) {
1071                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1072                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1073                 goto out;
1074         }
1075
1076         flags = IVAL(params,0);
1077         access_mask = IVAL(params,8);
1078         file_attributes = IVAL(params,20);
1079         share_access = IVAL(params,24);
1080         create_disposition = IVAL(params,28);
1081         create_options = IVAL(params,32);
1082         sd_len = IVAL(params,36);
1083         ea_len = IVAL(params,40);
1084         root_dir_fid = (uint16)IVAL(params,4);
1085         allocation_size = BVAL(params,12);
1086
1087         /*
1088          * we need to remove ignored bits when they come directly from the client
1089          * because we reuse some of them for internal stuff
1090          */
1091         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1092
1093         /* Ensure the data_len is correct for the sd and ea values given. */
1094         if ((ea_len + sd_len > data_count)
1095             || (ea_len > data_count) || (sd_len > data_count)
1096             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1097                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1098                            "%u, data_count = %u\n", (unsigned int)ea_len,
1099                            (unsigned int)sd_len, (unsigned int)data_count));
1100                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1101                 goto out;
1102         }
1103
1104         if (sd_len) {
1105                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1106                            sd_len));
1107
1108                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1109                                              &sd);
1110                 if (!NT_STATUS_IS_OK(status)) {
1111                         DEBUG(10, ("call_nt_transact_create: "
1112                                    "unmarshall_sec_desc failed: %s\n",
1113                                    nt_errstr(status)));
1114                         reply_nterror(req, status);
1115                         goto out;
1116                 }
1117         }
1118
1119         if (ea_len) {
1120                 if (!lp_ea_support(SNUM(conn))) {
1121                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1122                                    "EA's not supported.\n",
1123                                    (unsigned int)ea_len));
1124                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1125                         goto out;
1126                 }
1127
1128                 if (ea_len < 10) {
1129                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1130                                   "too small (should be more than 10)\n",
1131                                   (unsigned int)ea_len ));
1132                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1133                         goto out;
1134                 }
1135
1136                 /* We have already checked that ea_len <= data_count here. */
1137                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1138                                                ea_len);
1139                 if (ea_list == NULL) {
1140                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1141                         goto out;
1142                 }
1143         }
1144
1145         srvstr_get_path(ctx, params, req->flags2, &fname,
1146                         params+53, parameter_count-53,
1147                         STR_TERMINATE, &status);
1148         if (!NT_STATUS_IS_OK(status)) {
1149                 reply_nterror(req, status);
1150                 goto out;
1151         }
1152
1153         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1154                 case_state = set_posix_case_semantics(ctx, conn);
1155                 if (!case_state) {
1156                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1157                         goto out;
1158                 }
1159         }
1160
1161         status = filename_convert(ctx,
1162                                 conn,
1163                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1164                                 fname,
1165                                 0,
1166                                 NULL,
1167                                 &smb_fname);
1168
1169         TALLOC_FREE(case_state);
1170
1171         if (!NT_STATUS_IS_OK(status)) {
1172                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1173                         reply_botherror(req,
1174                                 NT_STATUS_PATH_NOT_COVERED,
1175                                 ERRSRV, ERRbadpath);
1176                         goto out;
1177                 }
1178                 reply_nterror(req, status);
1179                 goto out;
1180         }
1181
1182         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1183         if (oplock_request) {
1184                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1185                         ? BATCH_OPLOCK : 0;
1186         }
1187
1188         /*
1189          * Bug #6898 - clients using Windows opens should
1190          * never be able to set this attribute into the
1191          * VFS.
1192          */
1193         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1194
1195         status = SMB_VFS_CREATE_FILE(
1196                 conn,                                   /* conn */
1197                 req,                                    /* req */
1198                 root_dir_fid,                           /* root_dir_fid */
1199                 smb_fname,                              /* fname */
1200                 access_mask,                            /* access_mask */
1201                 share_access,                           /* share_access */
1202                 create_disposition,                     /* create_disposition*/
1203                 create_options,                         /* create_options */
1204                 file_attributes,                        /* file_attributes */
1205                 oplock_request,                         /* oplock_request */
1206                 allocation_size,                        /* allocation_size */
1207                 0,                                      /* private_flags */
1208                 sd,                                     /* sd */
1209                 ea_list,                                /* ea_list */
1210                 &fsp,                                   /* result */
1211                 &info);                                 /* pinfo */
1212
1213         if(!NT_STATUS_IS_OK(status)) {
1214                 if (open_was_deferred(req->sconn, req->mid)) {
1215                         /* We have re-scheduled this call, no error. */
1216                         return;
1217                 }
1218                 reply_openerror(req, status);
1219                 goto out;
1220         }
1221
1222         /* Ensure we're pointing at the correct stat struct. */
1223         TALLOC_FREE(smb_fname);
1224         smb_fname = fsp->fsp_name;
1225
1226         /*
1227          * If the caller set the extended oplock request bit
1228          * and we granted one (by whatever means) - set the
1229          * correct bit for extended oplock reply.
1230          */
1231
1232         if (oplock_request &&
1233             (lp_fake_oplocks(SNUM(conn))
1234              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1235
1236                 /*
1237                  * Exclusive oplock granted
1238                  */
1239
1240                 if (flags & REQUEST_BATCH_OPLOCK) {
1241                         oplock_granted = BATCH_OPLOCK_RETURN;
1242                 } else {
1243                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1244                 }
1245         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1246                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1247         } else {
1248                 oplock_granted = NO_OPLOCK_RETURN;
1249         }
1250
1251         file_len = smb_fname->st.st_ex_size;
1252
1253         /* Realloc the size of parameters and data we will return */
1254         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1255                 /* Extended response is 32 more byyes. */
1256                 param_len = 101;
1257         } else {
1258                 param_len = 69;
1259         }
1260         params = nttrans_realloc(ppparams, param_len);
1261         if(params == NULL) {
1262                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1263                 goto out;
1264         }
1265
1266         p = params;
1267         SCVAL(p, 0, oplock_granted);
1268
1269         p += 2;
1270         SSVAL(p,0,fsp->fnum);
1271         p += 2;
1272         if ((create_disposition == FILE_SUPERSEDE)
1273             && (info == FILE_WAS_OVERWRITTEN)) {
1274                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1275         } else {
1276                 SIVAL(p,0,info);
1277         }
1278         p += 8;
1279
1280         fattr = dos_mode(conn, smb_fname);
1281         if (fattr == 0) {
1282                 fattr = FILE_ATTRIBUTE_NORMAL;
1283         }
1284
1285         /* Deal with other possible opens having a modified
1286            write time. JRA. */
1287         ZERO_STRUCT(write_time_ts);
1288         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1289         if (!null_timespec(write_time_ts)) {
1290                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1291         }
1292
1293         /* Create time. */
1294         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1295         a_timespec = smb_fname->st.st_ex_atime;
1296         m_timespec = smb_fname->st.st_ex_mtime;
1297         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1298
1299         if (lp_dos_filetime_resolution(SNUM(conn))) {
1300                 dos_filetime_timespec(&create_timespec);
1301                 dos_filetime_timespec(&a_timespec);
1302                 dos_filetime_timespec(&m_timespec);
1303                 dos_filetime_timespec(&c_timespec);
1304         }
1305
1306         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1307         p += 8;
1308         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1309         p += 8;
1310         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1311         p += 8;
1312         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1313         p += 8;
1314         SIVAL(p,0,fattr); /* File Attributes. */
1315         p += 4;
1316         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1317         p += 8;
1318         SOFF_T(p,0,file_len);
1319         p += 8;
1320         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1321                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1322                 size_t num_names = 0;
1323                 unsigned int num_streams = 0;
1324                 struct stream_struct *streams = NULL;
1325
1326                 /* Do we have any EA's ? */
1327                 status = get_ea_names_from_file(ctx, conn, fsp,
1328                                 smb_fname->base_name, NULL, &num_names);
1329                 if (NT_STATUS_IS_OK(status) && num_names) {
1330                         file_status &= ~NO_EAS;
1331                 }
1332                 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
1333                         &num_streams, &streams);
1334                 /* There is always one stream, ::$DATA. */
1335                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1336                         file_status &= ~NO_SUBSTREAMS;
1337                 }
1338                 TALLOC_FREE(streams);
1339                 SSVAL(p,2,file_status);
1340         }
1341         p += 4;
1342         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1343
1344         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1345                 uint32 perms = 0;
1346                 p += 25;
1347                 if (fsp->is_directory ||
1348                     can_write_to_file(conn, smb_fname)) {
1349                         perms = FILE_GENERIC_ALL;
1350                 } else {
1351                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1352                 }
1353                 SIVAL(p,0,perms);
1354         }
1355
1356         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1357                  smb_fname_str_dbg(smb_fname)));
1358
1359         /* Send the required number of replies */
1360         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1361  out:
1362         return;
1363 }
1364
1365 /****************************************************************************
1366  Reply to a NT CANCEL request.
1367  conn POINTER CAN BE NULL HERE !
1368 ****************************************************************************/
1369
1370 void reply_ntcancel(struct smb_request *req)
1371 {
1372         /*
1373          * Go through and cancel any pending change notifies.
1374          */
1375
1376         START_PROFILE(SMBntcancel);
1377         srv_cancel_sign_response(req->sconn);
1378         remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1379         remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1380
1381         DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1382                 (unsigned long long)req->mid));
1383
1384         END_PROFILE(SMBntcancel);
1385         return;
1386 }
1387
1388 /****************************************************************************
1389  Copy a file.
1390 ****************************************************************************/
1391
1392 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1393                                 connection_struct *conn,
1394                                 struct smb_request *req,
1395                                 struct smb_filename *smb_fname_src,
1396                                 struct smb_filename *smb_fname_dst,
1397                                 uint32 attrs)
1398 {
1399         files_struct *fsp1,*fsp2;
1400         uint32 fattr;
1401         int info;
1402         off_t ret=-1;
1403         NTSTATUS status = NT_STATUS_OK;
1404         char *parent;
1405
1406         if (!CAN_WRITE(conn)) {
1407                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1408                 goto out;
1409         }
1410
1411         /* Source must already exist. */
1412         if (!VALID_STAT(smb_fname_src->st)) {
1413                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1414                 goto out;
1415         }
1416
1417         /* Ensure attributes match. */
1418         fattr = dos_mode(conn, smb_fname_src);
1419         if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1420                 status = NT_STATUS_NO_SUCH_FILE;
1421                 goto out;
1422         }
1423
1424         /* Disallow if dst file already exists. */
1425         if (VALID_STAT(smb_fname_dst->st)) {
1426                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1427                 goto out;
1428         }
1429
1430         /* No links from a directory. */
1431         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1432                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1433                 goto out;
1434         }
1435
1436         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1437                   smb_fname_str_dbg(smb_fname_src),
1438                   smb_fname_str_dbg(smb_fname_dst)));
1439
1440         status = SMB_VFS_CREATE_FILE(
1441                 conn,                                   /* conn */
1442                 req,                                    /* req */
1443                 0,                                      /* root_dir_fid */
1444                 smb_fname_src,                          /* fname */
1445                 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1446                         FILE_READ_EA,                   /* access_mask */
1447                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1448                     FILE_SHARE_DELETE),
1449                 FILE_OPEN,                              /* create_disposition*/
1450                 0,                                      /* create_options */
1451                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1452                 NO_OPLOCK,                              /* oplock_request */
1453                 0,                                      /* allocation_size */
1454                 0,                                      /* private_flags */
1455                 NULL,                                   /* sd */
1456                 NULL,                                   /* ea_list */
1457                 &fsp1,                                  /* result */
1458                 &info);                                 /* pinfo */
1459
1460         if (!NT_STATUS_IS_OK(status)) {
1461                 goto out;
1462         }
1463
1464         status = SMB_VFS_CREATE_FILE(
1465                 conn,                                   /* conn */
1466                 req,                                    /* req */
1467                 0,                                      /* root_dir_fid */
1468                 smb_fname_dst,                          /* fname */
1469                 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1470                         FILE_WRITE_EA,                  /* access_mask */
1471                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1472                     FILE_SHARE_DELETE),
1473                 FILE_CREATE,                            /* create_disposition*/
1474                 0,                                      /* create_options */
1475                 fattr,                                  /* file_attributes */
1476                 NO_OPLOCK,                              /* oplock_request */
1477                 0,                                      /* allocation_size */
1478                 0,                                      /* private_flags */
1479                 NULL,                                   /* sd */
1480                 NULL,                                   /* ea_list */
1481                 &fsp2,                                  /* result */
1482                 &info);                                 /* pinfo */
1483
1484         if (!NT_STATUS_IS_OK(status)) {
1485                 close_file(NULL, fsp1, ERROR_CLOSE);
1486                 goto out;
1487         }
1488
1489         if (smb_fname_src->st.st_ex_size) {
1490                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1491         }
1492
1493         /*
1494          * As we are opening fsp1 read-only we only expect
1495          * an error on close on fsp2 if we are out of space.
1496          * Thus we don't look at the error return from the
1497          * close of fsp1.
1498          */
1499         close_file(NULL, fsp1, NORMAL_CLOSE);
1500
1501         /* Ensure the modtime is set correctly on the destination file. */
1502         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1503
1504         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1505
1506         /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1507            creates the file. This isn't the correct thing to do in the copy
1508            case. JRA */
1509         if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1510                             NULL)) {
1511                 status = NT_STATUS_NO_MEMORY;
1512                 goto out;
1513         }
1514         file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1515         TALLOC_FREE(parent);
1516
1517         if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1518                 status = NT_STATUS_DISK_FULL;
1519                 goto out;
1520         }
1521  out:
1522         if (!NT_STATUS_IS_OK(status)) {
1523                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1524                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1525                         smb_fname_str_dbg(smb_fname_dst)));
1526         }
1527
1528         return status;
1529 }
1530
1531 /****************************************************************************
1532  Reply to a NT rename request.
1533 ****************************************************************************/
1534
1535 void reply_ntrename(struct smb_request *req)
1536 {
1537         connection_struct *conn = req->conn;
1538         struct smb_filename *smb_fname_old = NULL;
1539         struct smb_filename *smb_fname_new = NULL;
1540         char *oldname = NULL;
1541         char *newname = NULL;
1542         const char *p;
1543         NTSTATUS status;
1544         bool src_has_wcard = False;
1545         bool dest_has_wcard = False;
1546         uint32 attrs;
1547         uint32_t ucf_flags_src = 0;
1548         uint32_t ucf_flags_dst = 0;
1549         uint16 rename_type;
1550         TALLOC_CTX *ctx = talloc_tos();
1551         bool stream_rename = false;
1552
1553         START_PROFILE(SMBntrename);
1554
1555         if (req->wct < 4) {
1556                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1557                 goto out;
1558         }
1559
1560         attrs = SVAL(req->vwv+0, 0);
1561         rename_type = SVAL(req->vwv+1, 0);
1562
1563         p = (const char *)req->buf + 1;
1564         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1565                                        &status, &src_has_wcard);
1566         if (!NT_STATUS_IS_OK(status)) {
1567                 reply_nterror(req, status);
1568                 goto out;
1569         }
1570
1571         if (ms_has_wild(oldname)) {
1572                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1573                 goto out;
1574         }
1575
1576         p++;
1577         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1578                                        &status, &dest_has_wcard);
1579         if (!NT_STATUS_IS_OK(status)) {
1580                 reply_nterror(req, status);
1581                 goto out;
1582         }
1583
1584         if (!lp_posix_pathnames()) {
1585                 /* The newname must begin with a ':' if the
1586                    oldname contains a ':'. */
1587                 if (strchr_m(oldname, ':')) {
1588                         if (newname[0] != ':') {
1589                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1590                                 goto out;
1591                         }
1592                         stream_rename = true;
1593                 }
1594         }
1595
1596         /*
1597          * If this is a rename operation, allow wildcards and save the
1598          * destination's last component.
1599          */
1600         if (rename_type == RENAME_FLAG_RENAME) {
1601                 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1602                 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1603         }
1604
1605         /* rename_internals() calls unix_convert(), so don't call it here. */
1606         status = filename_convert(ctx, conn,
1607                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1608                                   oldname,
1609                                   ucf_flags_src,
1610                                   NULL,
1611                                   &smb_fname_old);
1612         if (!NT_STATUS_IS_OK(status)) {
1613                 if (NT_STATUS_EQUAL(status,
1614                                     NT_STATUS_PATH_NOT_COVERED)) {
1615                         reply_botherror(req,
1616                                         NT_STATUS_PATH_NOT_COVERED,
1617                                         ERRSRV, ERRbadpath);
1618                         goto out;
1619                 }
1620                 reply_nterror(req, status);
1621                 goto out;
1622         }
1623
1624         status = filename_convert(ctx, conn,
1625                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1626                                   newname,
1627                                   ucf_flags_dst,
1628                                   &dest_has_wcard,
1629                                   &smb_fname_new);
1630         if (!NT_STATUS_IS_OK(status)) {
1631                 if (NT_STATUS_EQUAL(status,
1632                                     NT_STATUS_PATH_NOT_COVERED)) {
1633                         reply_botherror(req,
1634                                         NT_STATUS_PATH_NOT_COVERED,
1635                                         ERRSRV, ERRbadpath);
1636                         goto out;
1637                 }
1638                 reply_nterror(req, status);
1639                 goto out;
1640         }
1641
1642         if (stream_rename) {
1643                 /* smb_fname_new must be the same as smb_fname_old. */
1644                 TALLOC_FREE(smb_fname_new->base_name);
1645                 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1646                                                 smb_fname_old->base_name);
1647                 if (!smb_fname_new->base_name) {
1648                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1649                         goto out;
1650                 }
1651         }
1652
1653         DEBUG(3,("reply_ntrename: %s -> %s\n",
1654                  smb_fname_str_dbg(smb_fname_old),
1655                  smb_fname_str_dbg(smb_fname_new)));
1656
1657         switch(rename_type) {
1658                 case RENAME_FLAG_RENAME:
1659                         status = rename_internals(ctx, conn, req,
1660                                                   smb_fname_old, smb_fname_new,
1661                                                   attrs, False, src_has_wcard,
1662                                                   dest_has_wcard,
1663                                                   DELETE_ACCESS);
1664                         break;
1665                 case RENAME_FLAG_HARD_LINK:
1666                         if (src_has_wcard || dest_has_wcard) {
1667                                 /* No wildcards. */
1668                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1669                         } else {
1670                                 status = hardlink_internals(ctx, conn,
1671                                                             req,
1672                                                             false,
1673                                                             smb_fname_old,
1674                                                             smb_fname_new);
1675                         }
1676                         break;
1677                 case RENAME_FLAG_COPY:
1678                         if (src_has_wcard || dest_has_wcard) {
1679                                 /* No wildcards. */
1680                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1681                         } else {
1682                                 status = copy_internals(ctx, conn, req,
1683                                                         smb_fname_old,
1684                                                         smb_fname_new,
1685                                                         attrs);
1686                         }
1687                         break;
1688                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1689                         status = NT_STATUS_INVALID_PARAMETER;
1690                         break;
1691                 default:
1692                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1693                         break;
1694         }
1695
1696         if (!NT_STATUS_IS_OK(status)) {
1697                 if (open_was_deferred(req->sconn, req->mid)) {
1698                         /* We have re-scheduled this call. */
1699                         goto out;
1700                 }
1701
1702                 reply_nterror(req, status);
1703                 goto out;
1704         }
1705
1706         reply_outbuf(req, 0, 0);
1707  out:
1708         END_PROFILE(SMBntrename);
1709         return;
1710 }
1711
1712 /****************************************************************************
1713  Reply to a notify change - queue the request and
1714  don't allow a directory to be opened.
1715 ****************************************************************************/
1716
1717 static void smbd_smb1_notify_reply(struct smb_request *req,
1718                                    NTSTATUS error_code,
1719                                    uint8_t *buf, size_t len)
1720 {
1721         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1722 }
1723
1724 static void call_nt_transact_notify_change(connection_struct *conn,
1725                                            struct smb_request *req,
1726                                            uint16 **ppsetup,
1727                                            uint32 setup_count,
1728                                            char **ppparams,
1729                                            uint32 parameter_count,
1730                                            char **ppdata, uint32 data_count,
1731                                            uint32 max_data_count,
1732                                            uint32 max_param_count)
1733 {
1734         uint16 *setup = *ppsetup;
1735         files_struct *fsp;
1736         uint32 filter;
1737         NTSTATUS status;
1738         bool recursive;
1739
1740         if(setup_count < 6) {
1741                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1742                 return;
1743         }
1744
1745         fsp = file_fsp(req, SVAL(setup,4));
1746         filter = IVAL(setup, 0);
1747         recursive = (SVAL(setup, 6) != 0) ? True : False;
1748
1749         DEBUG(3,("call_nt_transact_notify_change\n"));
1750
1751         if(!fsp) {
1752                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1753                 return;
1754         }
1755
1756         {
1757                 char *filter_string;
1758
1759                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1760                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1761                         return;
1762                 }
1763
1764                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1765                          "called on %s, filter = %s, recursive = %d\n",
1766                          fsp_str_dbg(fsp), filter_string, recursive));
1767
1768                 TALLOC_FREE(filter_string);
1769         }
1770
1771         if((!fsp->is_directory) || (conn != fsp->conn)) {
1772                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1773                 return;
1774         }
1775
1776         if (fsp->notify == NULL) {
1777
1778                 status = change_notify_create(fsp, filter, recursive);
1779
1780                 if (!NT_STATUS_IS_OK(status)) {
1781                         DEBUG(10, ("change_notify_create returned %s\n",
1782                                    nt_errstr(status)));
1783                         reply_nterror(req, status);
1784                         return;
1785                 }
1786         }
1787
1788         if (change_notify_fsp_has_changes(fsp)) {
1789
1790                 /*
1791                  * We've got changes pending, respond immediately
1792                  */
1793
1794                 /*
1795                  * TODO: write a torture test to check the filtering behaviour
1796                  * here.
1797                  */
1798
1799                 change_notify_reply(req,
1800                                     NT_STATUS_OK,
1801                                     max_param_count,
1802                                     fsp->notify,
1803                                     smbd_smb1_notify_reply);
1804
1805                 /*
1806                  * change_notify_reply() above has independently sent its
1807                  * results
1808                  */
1809                 return;
1810         }
1811
1812         /*
1813          * No changes pending, queue the request
1814          */
1815
1816         status = change_notify_add_request(req,
1817                         max_param_count,
1818                         filter,
1819                         recursive, fsp,
1820                         smbd_smb1_notify_reply);
1821         if (!NT_STATUS_IS_OK(status)) {
1822                 reply_nterror(req, status);
1823         }
1824         return;
1825 }
1826
1827 /****************************************************************************
1828  Reply to an NT transact rename command.
1829 ****************************************************************************/
1830
1831 static void call_nt_transact_rename(connection_struct *conn,
1832                                     struct smb_request *req,
1833                                     uint16 **ppsetup, uint32 setup_count,
1834                                     char **ppparams, uint32 parameter_count,
1835                                     char **ppdata, uint32 data_count,
1836                                     uint32 max_data_count)
1837 {
1838         char *params = *ppparams;
1839         char *new_name = NULL;
1840         files_struct *fsp = NULL;
1841         bool dest_has_wcard = False;
1842         NTSTATUS status;
1843         TALLOC_CTX *ctx = talloc_tos();
1844
1845         if(parameter_count < 5) {
1846                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1847                 return;
1848         }
1849
1850         fsp = file_fsp(req, SVAL(params, 0));
1851         if (!check_fsp(conn, req, fsp)) {
1852                 return;
1853         }
1854         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1855                               parameter_count - 4,
1856                               STR_TERMINATE, &status, &dest_has_wcard);
1857         if (!NT_STATUS_IS_OK(status)) {
1858                 reply_nterror(req, status);
1859                 return;
1860         }
1861
1862         /*
1863          * W2K3 ignores this request as the RAW-RENAME test
1864          * demonstrates, so we do.
1865          */
1866         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1867
1868         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1869                  fsp_str_dbg(fsp), new_name));
1870
1871         return;
1872 }
1873
1874 /******************************************************************************
1875  Fake up a completely empty SD.
1876 *******************************************************************************/
1877
1878 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1879 {
1880         size_t sd_size;
1881
1882         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1883         if(!*ppsd) {
1884                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1885                 return NT_STATUS_NO_MEMORY;
1886         }
1887
1888         return NT_STATUS_OK;
1889 }
1890
1891 /****************************************************************************
1892  Reply to query a security descriptor.
1893  Callable from SMB2 and SMB2.
1894  If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1895  the required size.
1896 ****************************************************************************/
1897
1898 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1899                                         TALLOC_CTX *mem_ctx,
1900                                         files_struct *fsp,
1901                                         uint32_t security_info_wanted,
1902                                         uint32_t max_data_count,
1903                                         uint8_t **ppmarshalled_sd,
1904                                         size_t *psd_size)
1905 {
1906         NTSTATUS status;
1907         struct security_descriptor *psd = NULL;
1908         TALLOC_CTX *frame = talloc_stackframe();
1909
1910         /*
1911          * Get the permissions to return.
1912          */
1913
1914         if ((security_info_wanted & SECINFO_SACL) &&
1915                         !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1916                 DEBUG(10, ("Access to SACL denied.\n"));
1917                 TALLOC_FREE(frame);
1918                 return NT_STATUS_ACCESS_DENIED;
1919         }
1920
1921         if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1922                         !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1923                 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1924                 TALLOC_FREE(frame);
1925                 return NT_STATUS_ACCESS_DENIED;
1926         }
1927
1928         if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1929                         SECINFO_GROUP|SECINFO_SACL)) {
1930                 /* Don't return SECINFO_LABEL if anything else was
1931                    requested. See bug #8458. */
1932                 security_info_wanted &= ~SECINFO_LABEL;
1933         }
1934
1935         if (!lp_nt_acl_support(SNUM(conn))) {
1936                 status = get_null_nt_acl(frame, &psd);
1937         } else if (security_info_wanted & SECINFO_LABEL) {
1938                 /* Like W2K3 return a null object. */
1939                 status = get_null_nt_acl(frame, &psd);
1940         } else {
1941                 status = SMB_VFS_FGET_NT_ACL(
1942                         fsp, security_info_wanted, frame, &psd);
1943         }
1944         if (!NT_STATUS_IS_OK(status)) {
1945                 TALLOC_FREE(frame);
1946                 return status;
1947         }
1948
1949         if (!(security_info_wanted & SECINFO_OWNER)) {
1950                 psd->owner_sid = NULL;
1951         }
1952         if (!(security_info_wanted & SECINFO_GROUP)) {
1953                 psd->group_sid = NULL;
1954         }
1955         if (!(security_info_wanted & SECINFO_DACL)) {
1956                 psd->type &= ~SEC_DESC_DACL_PRESENT;
1957                 psd->dacl = NULL;
1958         }
1959         if (!(security_info_wanted & SECINFO_SACL)) {
1960                 psd->type &= ~SEC_DESC_SACL_PRESENT;
1961                 psd->sacl = NULL;
1962         }
1963
1964         /* If the SACL/DACL is NULL, but was requested, we mark that it is
1965          * present in the reply to match Windows behavior */
1966         if (psd->sacl == NULL &&
1967             security_info_wanted & SECINFO_SACL)
1968                 psd->type |= SEC_DESC_SACL_PRESENT;
1969         if (psd->dacl == NULL &&
1970             security_info_wanted & SECINFO_DACL)
1971                 psd->type |= SEC_DESC_DACL_PRESENT;
1972
1973         if (security_info_wanted & SECINFO_LABEL) {
1974                 /* Like W2K3 return a null object. */
1975                 psd->owner_sid = NULL;
1976                 psd->group_sid = NULL;
1977                 psd->dacl = NULL;
1978                 psd->sacl = NULL;
1979                 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
1980         }
1981
1982         *psd_size = ndr_size_security_descriptor(psd, 0);
1983
1984         DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1985                 (unsigned long)*psd_size));
1986
1987         if (DEBUGLEVEL >= 10) {
1988                 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1989                           fsp_str_dbg(fsp)));
1990                 NDR_PRINT_DEBUG(security_descriptor, psd);
1991         }
1992
1993         if (max_data_count < *psd_size) {
1994                 TALLOC_FREE(frame);
1995                 return NT_STATUS_BUFFER_TOO_SMALL;
1996         }
1997
1998         status = marshall_sec_desc(mem_ctx, psd,
1999                                    ppmarshalled_sd, psd_size);
2000
2001         if (!NT_STATUS_IS_OK(status)) {
2002                 TALLOC_FREE(frame);
2003                 return status;
2004         }
2005
2006         TALLOC_FREE(frame);
2007         return NT_STATUS_OK;
2008 }
2009
2010 /****************************************************************************
2011  SMB1 reply to query a security descriptor.
2012 ****************************************************************************/
2013
2014 static void call_nt_transact_query_security_desc(connection_struct *conn,
2015                                                  struct smb_request *req,
2016                                                  uint16 **ppsetup,
2017                                                  uint32 setup_count,
2018                                                  char **ppparams,
2019                                                  uint32 parameter_count,
2020                                                  char **ppdata,
2021                                                  uint32 data_count,
2022                                                  uint32 max_data_count)
2023 {
2024         char *params = *ppparams;
2025         char *data = *ppdata;
2026         size_t sd_size = 0;
2027         uint32 security_info_wanted;
2028         files_struct *fsp = NULL;
2029         NTSTATUS status;
2030         uint8_t *marshalled_sd = NULL;
2031
2032         if(parameter_count < 8) {
2033                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2034                 return;
2035         }
2036
2037         fsp = file_fsp(req, SVAL(params,0));
2038         if(!fsp) {
2039                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2040                 return;
2041         }
2042
2043         security_info_wanted = IVAL(params,4);
2044
2045         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2046                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2047                  (unsigned int)security_info_wanted));
2048
2049         params = nttrans_realloc(ppparams, 4);
2050         if(params == NULL) {
2051                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2052                 return;
2053         }
2054
2055         /*
2056          * Get the permissions to return.
2057          */
2058
2059         status = smbd_do_query_security_desc(conn,
2060                                         talloc_tos(),
2061                                         fsp,
2062                                         security_info_wanted,
2063                                         max_data_count,
2064                                         &marshalled_sd,
2065                                         &sd_size);
2066
2067         if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2068                 SIVAL(params,0,(uint32_t)sd_size);
2069                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2070                         params, 4, NULL, 0);
2071                 return;
2072         }
2073
2074         if (!NT_STATUS_IS_OK(status)) {
2075                 reply_nterror(req, status);
2076                 return;
2077         }
2078
2079         SMB_ASSERT(sd_size > 0);
2080
2081         SIVAL(params,0,(uint32_t)sd_size);
2082
2083         if (max_data_count < sd_size) {
2084                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2085                                 params, 4, NULL, 0);
2086                 return;
2087         }
2088
2089         /*
2090          * Allocate the data we will return.
2091          */
2092
2093         data = nttrans_realloc(ppdata, sd_size);
2094         if(data == NULL) {
2095                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2096                 return;
2097         }
2098
2099         memcpy(data, marshalled_sd, sd_size);
2100
2101         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2102
2103         return;
2104 }
2105
2106 /****************************************************************************
2107  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2108 ****************************************************************************/
2109
2110 static void call_nt_transact_set_security_desc(connection_struct *conn,
2111                                                struct smb_request *req,
2112                                                uint16 **ppsetup,
2113                                                uint32 setup_count,
2114                                                char **ppparams,
2115                                                uint32 parameter_count,
2116                                                char **ppdata,
2117                                                uint32 data_count,
2118                                                uint32 max_data_count)
2119 {
2120         char *params= *ppparams;
2121         char *data = *ppdata;
2122         files_struct *fsp = NULL;
2123         uint32 security_info_sent = 0;
2124         NTSTATUS status;
2125
2126         if(parameter_count < 8) {
2127                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2128                 return;
2129         }
2130
2131         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2132                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2133                 return;
2134         }
2135
2136         if (!CAN_WRITE(fsp->conn)) {
2137                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2138                 return;
2139         }
2140
2141         if(!lp_nt_acl_support(SNUM(conn))) {
2142                 goto done;
2143         }
2144
2145         security_info_sent = IVAL(params,4);
2146
2147         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2148                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2149
2150         if (data_count == 0) {
2151                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2152                 return;
2153         }
2154
2155         status = set_sd_blob(fsp, (uint8 *)data, data_count, security_info_sent);
2156
2157         if (!NT_STATUS_IS_OK(status)) {
2158                 reply_nterror(req, status);
2159                 return;
2160         }
2161
2162   done:
2163         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2164         return;
2165 }
2166
2167 /****************************************************************************
2168  Reply to NT IOCTL
2169 ****************************************************************************/
2170
2171 static void call_nt_transact_ioctl(connection_struct *conn,
2172                                    struct smb_request *req,
2173                                    uint16 **ppsetup, uint32 setup_count,
2174                                    char **ppparams, uint32 parameter_count,
2175                                    char **ppdata, uint32 data_count,
2176                                    uint32 max_data_count)
2177 {
2178         NTSTATUS status;
2179         uint32 function;
2180         uint16 fidnum;
2181         files_struct *fsp;
2182         uint8 isFSctl;
2183         uint8 compfilter;
2184         char *out_data = NULL;
2185         uint32 out_data_len = 0;
2186         char *pdata = *ppdata;
2187         TALLOC_CTX *ctx = talloc_tos();
2188
2189         if (setup_count != 8) {
2190                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2191                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2192                 return;
2193         }
2194
2195         function = IVAL(*ppsetup, 0);
2196         fidnum = SVAL(*ppsetup, 4);
2197         isFSctl = CVAL(*ppsetup, 6);
2198         compfilter = CVAL(*ppsetup, 7);
2199
2200         DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2201                  function, fidnum, isFSctl, compfilter));
2202
2203         fsp=file_fsp(req, fidnum);
2204
2205         /*
2206          * We don't really implement IOCTLs, especially on files.
2207          */
2208         if (!isFSctl) {
2209                 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2210                         isFSctl));
2211                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2212                 return;
2213         }
2214
2215         /* Has to be for an open file! */
2216         if (!check_fsp_open(conn, req, fsp)) {
2217                 return;
2218         }
2219
2220         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2221
2222         /*
2223          * out_data might be allocated by the VFS module, but talloc should be
2224          * used, and should be cleaned up when the request ends.
2225          */
2226         status = SMB_VFS_FSCTL(fsp,
2227                                ctx,
2228                                function,
2229                                req->flags2,
2230                                (uint8_t *)pdata,
2231                                data_count,
2232                                (uint8_t **)&out_data,
2233                                max_data_count,
2234                                &out_data_len);
2235         if (!NT_STATUS_IS_OK(status)) {
2236                 reply_nterror(req, status);
2237         } else {
2238                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2239         }
2240 }
2241
2242
2243 #ifdef HAVE_SYS_QUOTAS
2244 /****************************************************************************
2245  Reply to get user quota
2246 ****************************************************************************/
2247
2248 static void call_nt_transact_get_user_quota(connection_struct *conn,
2249                                             struct smb_request *req,
2250                                             uint16 **ppsetup,
2251                                             uint32 setup_count,
2252                                             char **ppparams,
2253                                             uint32 parameter_count,
2254                                             char **ppdata,
2255                                             uint32 data_count,
2256                                             uint32 max_data_count)
2257 {
2258         NTSTATUS nt_status = NT_STATUS_OK;
2259         char *params = *ppparams;
2260         char *pdata = *ppdata;
2261         char *entry;
2262         int data_len=0,param_len=0;
2263         int qt_len=0;
2264         int entry_len = 0;
2265         files_struct *fsp = NULL;
2266         uint16 level = 0;
2267         size_t sid_len;
2268         struct dom_sid sid;
2269         bool start_enum = True;
2270         SMB_NTQUOTA_STRUCT qt;
2271         SMB_NTQUOTA_LIST *tmp_list;
2272         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2273
2274         ZERO_STRUCT(qt);
2275
2276         /* access check */
2277         if (get_current_uid(conn) != 0) {
2278                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2279                          "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2280                          conn->session_info->unix_info->unix_name));
2281                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2282                 return;
2283         }
2284
2285         /*
2286          * Ensure minimum number of parameters sent.
2287          */
2288
2289         if (parameter_count < 4) {
2290                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2291                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2292                 return;
2293         }
2294
2295         /* maybe we can check the quota_fnum */
2296         fsp = file_fsp(req, SVAL(params,0));
2297         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2298                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2299                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2300                 return;
2301         }
2302
2303         /* the NULL pointer checking for fsp->fake_file_handle->pd
2304          * is done by CHECK_NTQUOTA_HANDLE_OK()
2305          */
2306         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2307
2308         level = SVAL(params,2);
2309
2310         /* unknown 12 bytes leading in params */
2311
2312         switch (level) {
2313                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2314                         /* seems that we should continue with the enum here --metze */
2315
2316                         if (qt_handle->quota_list!=NULL &&
2317                             qt_handle->tmp_list==NULL) {
2318
2319                                 /* free the list */
2320                                 free_ntquota_list(&(qt_handle->quota_list));
2321
2322                                 /* Realloc the size of parameters and data we will return */
2323                                 param_len = 4;
2324                                 params = nttrans_realloc(ppparams, param_len);
2325                                 if(params == NULL) {
2326                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2327                                         return;
2328                                 }
2329
2330                                 data_len = 0;
2331                                 SIVAL(params,0,data_len);
2332
2333                                 break;
2334                         }
2335
2336                         start_enum = False;
2337
2338                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2339
2340                         if (qt_handle->quota_list==NULL &&
2341                                 qt_handle->tmp_list==NULL) {
2342                                 start_enum = True;
2343                         }
2344
2345                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2346                                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2347                                 return;
2348                         }
2349
2350                         /* Realloc the size of parameters and data we will return */
2351                         param_len = 4;
2352                         params = nttrans_realloc(ppparams, param_len);
2353                         if(params == NULL) {
2354                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2355                                 return;
2356                         }
2357
2358                         /* we should not trust the value in max_data_count*/
2359                         max_data_count = MIN(max_data_count,2048);
2360
2361                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2362                         if(pdata == NULL) {
2363                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2364                                 return;
2365                         }
2366
2367                         entry = pdata;
2368
2369                         /* set params Size of returned Quota Data 4 bytes*/
2370                         /* but set it later when we know it */
2371
2372                         /* for each entry push the data */
2373
2374                         if (start_enum) {
2375                                 qt_handle->tmp_list = qt_handle->quota_list;
2376                         }
2377
2378                         tmp_list = qt_handle->tmp_list;
2379
2380                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2381                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2382
2383                                 sid_len = ndr_size_dom_sid(
2384                                         &tmp_list->quotas->sid, 0);
2385                                 entry_len = 40 + sid_len;
2386
2387                                 /* nextoffset entry 4 bytes */
2388                                 SIVAL(entry,0,entry_len);
2389
2390                                 /* then the len of the SID 4 bytes */
2391                                 SIVAL(entry,4,sid_len);
2392
2393                                 /* unknown data 8 bytes uint64_t */
2394                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2395
2396                                 /* the used disk space 8 bytes uint64_t */
2397                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2398
2399                                 /* the soft quotas 8 bytes uint64_t */
2400                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2401
2402                                 /* the hard quotas 8 bytes uint64_t */
2403                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2404
2405                                 /* and now the SID */
2406                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2407                         }
2408
2409                         qt_handle->tmp_list = tmp_list;
2410
2411                         /* overwrite the offset of the last entry */
2412                         SIVAL(entry-entry_len,0,0);
2413
2414                         data_len = 4+qt_len;
2415                         /* overwrite the params quota_data_len */
2416                         SIVAL(params,0,data_len);
2417
2418                         break;
2419
2420                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2421
2422                         /* unknown 4 bytes IVAL(pdata,0) */
2423
2424                         if (data_count < 8) {
2425                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2426                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2427                                 return;
2428                         }
2429
2430                         sid_len = IVAL(pdata,4);
2431                         /* Ensure this is less than 1mb. */
2432                         if (sid_len > (1024*1024)) {
2433                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2434                                 return;
2435                         }
2436
2437                         if (data_count < 8+sid_len) {
2438                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2439                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2440                                 return;
2441                         }
2442
2443                         data_len = 4+40+sid_len;
2444
2445                         if (max_data_count < data_len) {
2446                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2447                                         max_data_count, data_len));
2448                                 param_len = 4;
2449                                 SIVAL(params,0,data_len);
2450                                 data_len = 0;
2451                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2452                                 break;
2453                         }
2454
2455                         if (!sid_parse(pdata+8,sid_len,&sid)) {
2456                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2457                                 return;
2458                         }
2459
2460                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2461                                 ZERO_STRUCT(qt);
2462                                 /*
2463                                  * we have to return zero's in all fields
2464                                  * instead of returning an error here
2465                                  * --metze
2466                                  */
2467                         }
2468
2469                         /* Realloc the size of parameters and data we will return */
2470                         param_len = 4;
2471                         params = nttrans_realloc(ppparams, param_len);
2472                         if(params == NULL) {
2473                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2474                                 return;
2475                         }
2476
2477                         pdata = nttrans_realloc(ppdata, data_len);
2478                         if(pdata == NULL) {
2479                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2480                                 return;
2481                         }
2482
2483                         entry = pdata;
2484
2485                         /* set params Size of returned Quota Data 4 bytes*/
2486                         SIVAL(params,0,data_len);
2487
2488                         /* nextoffset entry 4 bytes */
2489                         SIVAL(entry,0,0);
2490
2491                         /* then the len of the SID 4 bytes */
2492                         SIVAL(entry,4,sid_len);
2493
2494                         /* unknown data 8 bytes uint64_t */
2495                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2496
2497                         /* the used disk space 8 bytes uint64_t */
2498                         SBIG_UINT(entry,16,qt.usedspace);
2499
2500                         /* the soft quotas 8 bytes uint64_t */
2501                         SBIG_UINT(entry,24,qt.softlim);
2502
2503                         /* the hard quotas 8 bytes uint64_t */
2504                         SBIG_UINT(entry,32,qt.hardlim);
2505
2506                         /* and now the SID */
2507                         sid_linearize(entry+40, sid_len, &sid);
2508
2509                         break;
2510
2511                 default:
2512                         DEBUG(0, ("do_nt_transact_get_user_quota: %s: unknown "
2513                                   "level 0x%04hX\n",
2514                                   fsp_fnum_dbg(fsp), level));
2515                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2516                         return;
2517                         break;
2518         }
2519
2520         send_nt_replies(conn, req, nt_status, params, param_len,
2521                         pdata, data_len);
2522 }
2523
2524 /****************************************************************************
2525  Reply to set user quota
2526 ****************************************************************************/
2527
2528 static void call_nt_transact_set_user_quota(connection_struct *conn,
2529                                             struct smb_request *req,
2530                                             uint16 **ppsetup,
2531                                             uint32 setup_count,
2532                                             char **ppparams,
2533                                             uint32 parameter_count,
2534                                             char **ppdata,
2535                                             uint32 data_count,
2536                                             uint32 max_data_count)
2537 {
2538         char *params = *ppparams;
2539         char *pdata = *ppdata;
2540         int data_len=0,param_len=0;
2541         SMB_NTQUOTA_STRUCT qt;
2542         size_t sid_len;
2543         struct dom_sid sid;
2544         files_struct *fsp = NULL;
2545
2546         ZERO_STRUCT(qt);
2547
2548         /* access check */
2549         if (get_current_uid(conn) != 0) {
2550                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2551                          "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2552                          conn->session_info->unix_info->unix_name));
2553                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2554                 return;
2555         }
2556
2557         /*
2558          * Ensure minimum number of parameters sent.
2559          */
2560
2561         if (parameter_count < 2) {
2562                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2563                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2564                 return;
2565         }
2566
2567         /* maybe we can check the quota_fnum */
2568         fsp = file_fsp(req, SVAL(params,0));
2569         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2570                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2571                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2572                 return;
2573         }
2574
2575         if (data_count < 40) {
2576                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2577                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2578                 return;
2579         }
2580
2581         /* offset to next quota record.
2582          * 4 bytes IVAL(pdata,0)
2583          * unused here...
2584          */
2585
2586         /* sid len */
2587         sid_len = IVAL(pdata,4);
2588
2589         if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2590                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2591                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2592                 return;
2593         }
2594
2595         /* unknown 8 bytes in pdata
2596          * maybe its the change time in NTTIME
2597          */
2598
2599         /* the used space 8 bytes (uint64_t)*/
2600         qt.usedspace = BVAL(pdata,16);
2601
2602         /* the soft quotas 8 bytes (uint64_t)*/
2603         qt.softlim = BVAL(pdata,24);
2604
2605         /* the hard quotas 8 bytes (uint64_t)*/
2606         qt.hardlim = BVAL(pdata,32);
2607
2608         if (!sid_parse(pdata+40,sid_len,&sid)) {
2609                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2610                 return;
2611         }
2612
2613         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2614
2615         /* 44 unknown bytes left... */
2616
2617         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2618                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2619                 return;
2620         }
2621
2622         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2623                         pdata, data_len);
2624 }
2625 #endif /* HAVE_SYS_QUOTAS */
2626
2627 static void handle_nttrans(connection_struct *conn,
2628                            struct trans_state *state,
2629                            struct smb_request *req)
2630 {
2631         if (get_Protocol() >= PROTOCOL_NT1) {
2632                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2633                 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2634         }
2635
2636
2637         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2638
2639         /* Now we must call the relevant NT_TRANS function */
2640         switch(state->call) {
2641                 case NT_TRANSACT_CREATE:
2642                 {
2643                         START_PROFILE(NT_transact_create);
2644                         call_nt_transact_create(
2645                                 conn, req,
2646                                 &state->setup, state->setup_count,
2647                                 &state->param, state->total_param,
2648                                 &state->data, state->total_data,
2649                                 state->max_data_return);
2650                         END_PROFILE(NT_transact_create);
2651                         break;
2652                 }
2653
2654                 case NT_TRANSACT_IOCTL:
2655                 {
2656                         START_PROFILE(NT_transact_ioctl);
2657                         call_nt_transact_ioctl(
2658                                 conn, req,
2659                                 &state->setup, state->setup_count,
2660                                 &state->param, state->total_param,
2661                                 &state->data, state->total_data,
2662                                 state->max_data_return);
2663                         END_PROFILE(NT_transact_ioctl);
2664                         break;
2665                 }
2666
2667                 case NT_TRANSACT_SET_SECURITY_DESC:
2668                 {
2669                         START_PROFILE(NT_transact_set_security_desc);
2670                         call_nt_transact_set_security_desc(
2671                                 conn, req,
2672                                 &state->setup, state->setup_count,
2673                                 &state->param, state->total_param,
2674                                 &state->data, state->total_data,
2675                                 state->max_data_return);
2676                         END_PROFILE(NT_transact_set_security_desc);
2677                         break;
2678                 }
2679
2680                 case NT_TRANSACT_NOTIFY_CHANGE:
2681                 {
2682                         START_PROFILE(NT_transact_notify_change);
2683                         call_nt_transact_notify_change(
2684                                 conn, req,
2685                                 &state->setup, state->setup_count,
2686                                 &state->param, state->total_param,
2687                                 &state->data, state->total_data,
2688                                 state->max_data_return,
2689                                 state->max_param_return);
2690                         END_PROFILE(NT_transact_notify_change);
2691                         break;
2692                 }
2693
2694                 case NT_TRANSACT_RENAME:
2695                 {
2696                         START_PROFILE(NT_transact_rename);
2697                         call_nt_transact_rename(
2698                                 conn, req,
2699                                 &state->setup, state->setup_count,
2700                                 &state->param, state->total_param,
2701                                 &state->data, state->total_data,
2702                                 state->max_data_return);
2703                         END_PROFILE(NT_transact_rename);
2704                         break;
2705                 }
2706
2707                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2708                 {
2709                         START_PROFILE(NT_transact_query_security_desc);
2710                         call_nt_transact_query_security_desc(
2711                                 conn, req,
2712                                 &state->setup, state->setup_count,
2713                                 &state->param, state->total_param,
2714                                 &state->data, state->total_data,
2715                                 state->max_data_return);
2716                         END_PROFILE(NT_transact_query_security_desc);
2717                         break;
2718                 }
2719
2720 #ifdef HAVE_SYS_QUOTAS
2721                 case NT_TRANSACT_GET_USER_QUOTA:
2722                 {
2723                         START_PROFILE(NT_transact_get_user_quota);
2724                         call_nt_transact_get_user_quota(
2725                                 conn, req,
2726                                 &state->setup, state->setup_count,
2727                                 &state->param, state->total_param,
2728                                 &state->data, state->total_data,
2729                                 state->max_data_return);
2730                         END_PROFILE(NT_transact_get_user_quota);
2731                         break;
2732                 }
2733
2734                 case NT_TRANSACT_SET_USER_QUOTA:
2735                 {
2736                         START_PROFILE(NT_transact_set_user_quota);
2737                         call_nt_transact_set_user_quota(
2738                                 conn, req,
2739                                 &state->setup, state->setup_count,
2740                                 &state->param, state->total_param,
2741                                 &state->data, state->total_data,
2742                                 state->max_data_return);
2743                         END_PROFILE(NT_transact_set_user_quota);
2744                         break;
2745                 }
2746 #endif /* HAVE_SYS_QUOTAS */
2747
2748                 default:
2749                         /* Error in request */
2750                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2751                                  "nttrans call\n", state->call));
2752                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2753                         return;
2754         }
2755         return;
2756 }
2757
2758 /****************************************************************************
2759  Reply to a SMBNTtrans.
2760 ****************************************************************************/
2761
2762 void reply_nttrans(struct smb_request *req)
2763 {
2764         connection_struct *conn = req->conn;
2765         uint32_t pscnt;
2766         uint32_t psoff;
2767         uint32_t dscnt;
2768         uint32_t dsoff;
2769         uint16 function_code;
2770         NTSTATUS result;
2771         struct trans_state *state;
2772
2773         START_PROFILE(SMBnttrans);
2774
2775         if (req->wct < 19) {
2776                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2777                 END_PROFILE(SMBnttrans);
2778                 return;
2779         }
2780
2781         pscnt = IVAL(req->vwv+9, 1);
2782         psoff = IVAL(req->vwv+11, 1);
2783         dscnt = IVAL(req->vwv+13, 1);
2784         dsoff = IVAL(req->vwv+15, 1);
2785         function_code = SVAL(req->vwv+18, 0);
2786
2787         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2788                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2789                 END_PROFILE(SMBnttrans);
2790                 return;
2791         }
2792
2793         result = allow_new_trans(conn->pending_trans, req->mid);
2794         if (!NT_STATUS_IS_OK(result)) {
2795                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2796                 reply_nterror(req, result);
2797                 END_PROFILE(SMBnttrans);
2798                 return;
2799         }
2800
2801         if ((state = talloc(conn, struct trans_state)) == NULL) {
2802                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2803                 END_PROFILE(SMBnttrans);
2804                 return;
2805         }
2806
2807         state->cmd = SMBnttrans;
2808
2809         state->mid = req->mid;
2810         state->vuid = req->vuid;
2811         state->total_data = IVAL(req->vwv+3, 1);
2812         state->data = NULL;
2813         state->total_param = IVAL(req->vwv+1, 1);
2814         state->param = NULL;
2815         state->max_data_return = IVAL(req->vwv+7, 1);
2816         state->max_param_return = IVAL(req->vwv+5, 1);
2817
2818         /* setup count is in *words* */
2819         state->setup_count = 2*CVAL(req->vwv+17, 1);
2820         state->setup = NULL;
2821         state->call = function_code;
2822
2823         DEBUG(10, ("num_setup=%u, "
2824                    "param_total=%u, this_param=%u, max_param=%u, "
2825                    "data_total=%u, this_data=%u, max_data=%u, "
2826                    "param_offset=%u, data_offset=%u\n",
2827                    (unsigned)state->setup_count,
2828                    (unsigned)state->total_param, (unsigned)pscnt,
2829                    (unsigned)state->max_param_return,
2830                    (unsigned)state->total_data, (unsigned)dscnt,
2831                    (unsigned)state->max_data_return,
2832                    (unsigned)psoff, (unsigned)dsoff));
2833
2834         /*
2835          * All nttrans messages we handle have smb_wct == 19 +
2836          * state->setup_count.  Ensure this is so as a sanity check.
2837          */
2838
2839         if(req->wct != 19 + (state->setup_count/2)) {
2840                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2841                          req->wct, 19 + (state->setup_count/2)));
2842                 goto bad_param;
2843         }
2844
2845         /* Don't allow more than 128mb for each value. */
2846         if ((state->total_data > (1024*1024*128)) ||
2847             (state->total_param > (1024*1024*128))) {
2848                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2849                 END_PROFILE(SMBnttrans);
2850                 return;
2851         }
2852
2853         if ((dscnt > state->total_data) || (pscnt > state->total_param))
2854                 goto bad_param;
2855
2856         if (state->total_data)  {
2857
2858                 if (trans_oob(state->total_data, 0, dscnt)
2859                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2860                         goto bad_param;
2861                 }
2862
2863                 /* Can't use talloc here, the core routines do realloc on the
2864                  * params and data. */
2865                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2866                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
2867                                  "bytes !\n", (unsigned int)state->total_data));
2868                         TALLOC_FREE(state);
2869                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2870                         END_PROFILE(SMBnttrans);
2871                         return;
2872                 }
2873
2874                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2875         }
2876
2877         if (state->total_param) {
2878
2879                 if (trans_oob(state->total_param, 0, pscnt)
2880                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2881                         goto bad_param;
2882                 }
2883
2884                 /* Can't use talloc here, the core routines do realloc on the
2885                  * params and data. */
2886                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2887                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
2888                                  "bytes !\n", (unsigned int)state->total_param));
2889                         SAFE_FREE(state->data);
2890                         TALLOC_FREE(state);
2891                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2892                         END_PROFILE(SMBnttrans);
2893                         return;
2894                 }
2895
2896                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2897         }
2898
2899         state->received_data  = dscnt;
2900         state->received_param = pscnt;
2901
2902         if(state->setup_count > 0) {
2903                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2904                           state->setup_count));
2905
2906                 /*
2907                  * No overflow possible here, state->setup_count is an
2908                  * unsigned int, being filled by a single byte from
2909                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
2910                  * below is not necessary, it's here to clarify things. The
2911                  * validity of req->vwv and req->wct has been checked in
2912                  * init_smb_request already.
2913                  */
2914                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2915                         goto bad_param;
2916                 }
2917
2918                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2919                 if (state->setup == NULL) {
2920                         DEBUG(0,("reply_nttrans : Out of memory\n"));
2921                         SAFE_FREE(state->data);
2922                         SAFE_FREE(state->param);
2923                         TALLOC_FREE(state);
2924                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2925                         END_PROFILE(SMBnttrans);
2926                         return;
2927                 }
2928
2929                 memcpy(state->setup, req->vwv+19, state->setup_count);
2930                 dump_data(10, (uint8 *)state->setup, state->setup_count);
2931         }
2932
2933         if ((state->received_data == state->total_data) &&
2934             (state->received_param == state->total_param)) {
2935                 handle_nttrans(conn, state, req);
2936                 SAFE_FREE(state->param);
2937                 SAFE_FREE(state->data);
2938                 TALLOC_FREE(state);
2939                 END_PROFILE(SMBnttrans);
2940                 return;
2941         }
2942
2943         DLIST_ADD(conn->pending_trans, state);
2944
2945         /* We need to send an interim response then receive the rest
2946            of the parameter/data bytes */
2947         reply_outbuf(req, 0, 0);
2948         show_msg((char *)req->outbuf);
2949         END_PROFILE(SMBnttrans);
2950         return;
2951
2952   bad_param:
2953
2954         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2955         SAFE_FREE(state->data);
2956         SAFE_FREE(state->param);
2957         TALLOC_FREE(state);
2958         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2959         END_PROFILE(SMBnttrans);
2960         return;
2961 }
2962
2963 /****************************************************************************
2964  Reply to a SMBnttranss
2965  ****************************************************************************/
2966
2967 void reply_nttranss(struct smb_request *req)
2968 {
2969         connection_struct *conn = req->conn;
2970         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2971         struct trans_state *state;
2972
2973         START_PROFILE(SMBnttranss);
2974
2975         show_msg((const char *)req->inbuf);
2976
2977         /* Windows clients expect all replies to
2978            an NT transact secondary (SMBnttranss 0xA1)
2979            to have a command code of NT transact
2980            (SMBnttrans 0xA0). See bug #8989 for details. */
2981         req->cmd = SMBnttrans;
2982
2983         if (req->wct < 18) {
2984                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2985                 END_PROFILE(SMBnttranss);
2986                 return;
2987         }
2988
2989         for (state = conn->pending_trans; state != NULL;
2990              state = state->next) {
2991                 if (state->mid == req->mid) {
2992                         break;
2993                 }
2994         }
2995
2996         if ((state == NULL) || (state->cmd != SMBnttrans)) {
2997                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2998                 END_PROFILE(SMBnttranss);
2999                 return;
3000         }
3001
3002         /* Revise state->total_param and state->total_data in case they have
3003            changed downwards */
3004         if (IVAL(req->vwv+1, 1) < state->total_param) {
3005                 state->total_param = IVAL(req->vwv+1, 1);
3006         }
3007         if (IVAL(req->vwv+3, 1) < state->total_data) {
3008                 state->total_data = IVAL(req->vwv+3, 1);
3009         }
3010
3011         pcnt = IVAL(req->vwv+5, 1);
3012         poff = IVAL(req->vwv+7, 1);
3013         pdisp = IVAL(req->vwv+9, 1);
3014
3015         dcnt = IVAL(req->vwv+11, 1);
3016         doff = IVAL(req->vwv+13, 1);
3017         ddisp = IVAL(req->vwv+15, 1);
3018
3019         state->received_param += pcnt;
3020         state->received_data += dcnt;
3021
3022         if ((state->received_data > state->total_data) ||
3023             (state->received_param > state->total_param))
3024                 goto bad_param;
3025
3026         if (pcnt) {
3027                 if (trans_oob(state->total_param, pdisp, pcnt)
3028                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3029                         goto bad_param;
3030                 }
3031                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3032         }
3033
3034         if (dcnt) {
3035                 if (trans_oob(state->total_data, ddisp, dcnt)
3036                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3037                         goto bad_param;
3038                 }
3039                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3040         }
3041
3042         if ((state->received_param < state->total_param) ||
3043             (state->received_data < state->total_data)) {
3044                 END_PROFILE(SMBnttranss);
3045                 return;
3046         }
3047
3048         handle_nttrans(conn, state, req);
3049
3050         DLIST_REMOVE(conn->pending_trans, state);
3051         SAFE_FREE(state->data);
3052         SAFE_FREE(state->param);
3053         TALLOC_FREE(state);
3054         END_PROFILE(SMBnttranss);
3055         return;
3056
3057   bad_param:
3058
3059         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3060         DLIST_REMOVE(conn->pending_trans, state);
3061         SAFE_FREE(state->data);
3062         SAFE_FREE(state->param);
3063         TALLOC_FREE(state);
3064         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3065         END_PROFILE(SMBnttranss);
3066         return;
3067 }