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 "smbd/globals.h"
  23
  24 extern const struct generic_mapping file_generic_mapping;
  25
  26 static char *nttrans_realloc(char **ptr, size_t size)
  27 {
  28         if (ptr==NULL) {
  29                 smb_panic("nttrans_realloc() called with NULL ptr");
  30         }
  31
  32         *ptr = (char *)SMB_REALLOC(*ptr, size);
  33         if(*ptr == NULL) {
  34                 return NULL;
  35         }
  36         memset(*ptr,'\0',size);
  37         return *ptr;
  38 }
  39
  40 /****************************************************************************
  41  Send the required number of replies back.
  42  We assume all fields other than the data fields are
  43  set correctly for the type of call.
  44  HACK ! Always assumes smb_setup field is zero.
  45 ****************************************************************************/
  46
  47 void send_nt_replies(connection_struct *conn,
  48                         struct smb_request *req, NTSTATUS nt_error,
  49                      char *params, int paramsize,
  50                      char *pdata, int datasize)
  51 {
  52         int data_to_send = datasize;
  53         int params_to_send = paramsize;
  54         int useable_space;
  55         char *pp = params;
  56         char *pd = pdata;
  57         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  58         int alignment_offset = 3;
  59         int data_alignment_offset = 0;
  60         struct smbd_server_connection *sconn = smbd_server_conn;
  61         int max_send = sconn->smb1.sessions.max_send;
  62
  63         /*
  64          * If there genuinely are no parameters or data to send just send
  65          * the empty packet.
  66          */
  67
  68         if(params_to_send == 0 && data_to_send == 0) {
  69                 reply_outbuf(req, 18, 0);
  70                 if (NT_STATUS_V(nt_error)) {
  71                         error_packet_set((char *)req->outbuf,
  72                                          0, 0, nt_error,
  73                                          __LINE__,__FILE__);
  74                 }
  75                 show_msg((char *)req->outbuf);
  76                 if (!srv_send_smb(smbd_server_fd(),
  77                                 (char *)req->outbuf,
  78                                 true, req->seqnum+1,
  79                                 IS_CONN_ENCRYPTED(conn),
  80                                 &req->pcd)) {
  81                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
  82                 }
  83                 TALLOC_FREE(req->outbuf);
  84                 return;
  85         }
  86
  87         /*
  88          * When sending params and data ensure that both are nicely aligned.
  89          * Only do this alignment when there is also data to send - else
  90          * can cause NT redirector problems.
  91          */
  92
  93         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
  94                 data_alignment_offset = 4 - (params_to_send % 4);
  95         }
  96
  97         /*
  98          * Space is bufsize minus Netbios over TCP header minus SMB header.
  99          * The alignment_offset is to align the param bytes on a four byte
 100          * boundary (2 bytes for data len, one byte pad).
 101          * NT needs this to work correctly.
 102          */
 103
 104         useable_space = max_send - (smb_size
 105                                     + 2 * 18 /* wct */
 106                                     + alignment_offset
 107                                     + data_alignment_offset);
 108
 109         if (useable_space < 0) {
 110                 char *msg = talloc_asprintf(
 111                         talloc_tos(),
 112                         "send_nt_replies failed sanity useable_space = %d!!!",
 113                         useable_space);
 114                 DEBUG(0, ("%s\n", msg));
 115                 exit_server_cleanly(msg);
 116         }
 117
 118         while (params_to_send || data_to_send) {
 119
 120                 /*
 121                  * Calculate whether we will totally or partially fill this packet.
 122                  */
 123
 124                 total_sent_thistime = params_to_send + data_to_send;
 125
 126                 /*
 127                  * We can never send more than useable_space.
 128                  */
 129
 130                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 131
 132                 reply_outbuf(req, 18,
 133                              total_sent_thistime + alignment_offset
 134                              + data_alignment_offset);
 135
 136                 /*
 137                  * We might have had SMBnttranss in req->inbuf, fix that.
 138                  */
 139                 SCVAL(req->outbuf, smb_com, SMBnttrans);
 140
 141                 /*
 142                  * Set total params and data to be sent.
 143                  */
 144
 145                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 146                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 147
 148                 /*
 149                  * Calculate how many parameters and data we can fit into
 150                  * this packet. Parameters get precedence.
 151                  */
 152
 153                 params_sent_thistime = MIN(params_to_send,useable_space);
 154                 data_sent_thistime = useable_space - params_sent_thistime;
 155                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 156
 157                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 158                       params_sent_thistime);
 159
 160                 if(params_sent_thistime == 0) {
 161                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 162                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 163                 } else {
 164                         /*
 165                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 166                          * parameter bytes, however the first 4 bytes of outbuf are
 167                          * the Netbios over TCP header. Thus use smb_base() to subtract
 168                          * them from the calculation.
 169                          */
 170
 171                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 172                               ((smb_buf(req->outbuf)+alignment_offset)
 173                                - smb_base(req->outbuf)));
 174                         /*
 175                          * Absolute displacement of param bytes sent in this packet.
 176                          */
 177
 178                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 179                               pp - params);
 180                 }
 181
 182                 /*
 183                  * Deal with the data portion.
 184                  */
 185
 186                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 187
 188                 if(data_sent_thistime == 0) {
 189                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 190                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 191                 } else {
 192                         /*
 193                          * The offset of the data bytes is the offset of the
 194                          * parameter bytes plus the number of parameters being sent this time.
 195                          */
 196
 197                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 198                               ((smb_buf(req->outbuf)+alignment_offset) -
 199                                smb_base(req->outbuf))
 200                               + params_sent_thistime + data_alignment_offset);
 201                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 202                 }
 203
 204                 /*
 205                  * Copy the param bytes into the packet.
 206                  */
 207
 208                 if(params_sent_thistime) {
 209                         if (alignment_offset != 0) {
 210                                 memset(smb_buf(req->outbuf), 0,
 211                                        alignment_offset);
 212                         }
 213                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 214                                params_sent_thistime);
 215                 }
 216
 217                 /*
 218                  * Copy in the data bytes
 219                  */
 220
 221                 if(data_sent_thistime) {
 222                         if (data_alignment_offset != 0) {
 223                                 memset((smb_buf(req->outbuf)+alignment_offset+
 224                                         params_sent_thistime), 0,
 225                                        data_alignment_offset);
 226                         }
 227                         memcpy(smb_buf(req->outbuf)+alignment_offset
 228                                +params_sent_thistime+data_alignment_offset,
 229                                pd,data_sent_thistime);
 230                 }
 231
 232                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 233                         params_sent_thistime, data_sent_thistime, useable_space));
 234                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 235                         params_to_send, data_to_send, paramsize, datasize));
 236
 237                 if (NT_STATUS_V(nt_error)) {
 238                         error_packet_set((char *)req->outbuf,
 239                                          0, 0, nt_error,
 240                                          __LINE__,__FILE__);
 241                 }
 242
 243                 /* Send the packet */
 244                 show_msg((char *)req->outbuf);
 245                 if (!srv_send_smb(smbd_server_fd(),
 246                                 (char *)req->outbuf,
 247                                 true, req->seqnum+1,
 248                                 IS_CONN_ENCRYPTED(conn),
 249                                 &req->pcd)) {
 250                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 251                 }
 252
 253                 TALLOC_FREE(req->outbuf);
 254
 255                 pp += params_sent_thistime;
 256                 pd += data_sent_thistime;
 257
 258                 params_to_send -= params_sent_thistime;
 259                 data_to_send -= data_sent_thistime;
 260
 261                 /*
 262                  * Sanity check
 263                  */
 264
 265                 if(params_to_send < 0 || data_to_send < 0) {
 266                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 267                                 params_to_send, data_to_send));
 268                         exit_server_cleanly("send_nt_replies: internal error");
 269                 }
 270         }
 271 }
 272
 273 /****************************************************************************
 274  Reply to an NT create and X call on a pipe
 275 ****************************************************************************/
 276
 277 static void nt_open_pipe(char *fname, connection_struct *conn,
 278                          struct smb_request *req, int *ppnum)
 279 {
 280         files_struct *fsp;
 281         NTSTATUS status;
 282
 283         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 284
 285         /* Strip \\ off the name. */
 286         fname++;
 287
 288         status = open_np_file(req, fname, &fsp);
 289         if (!NT_STATUS_IS_OK(status)) {
 290                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 291                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 292                                         ERRDOS, ERRbadpipe);
 293                         return;
 294                 }
 295                 reply_nterror(req, status);
 296                 return;
 297         }
 298
 299         *ppnum = fsp->fnum;
 300         return;
 301 }
 302
 303 /****************************************************************************
 304  Reply to an NT create and X call for pipes.
 305 ****************************************************************************/
 306
 307 static void do_ntcreate_pipe_open(connection_struct *conn,
 308                                   struct smb_request *req)
 309 {
 310         char *fname = NULL;
 311         int pnum = -1;
 312         char *p = NULL;
 313         uint32 flags = IVAL(req->vwv+3, 1);
 314         TALLOC_CTX *ctx = talloc_tos();
 315
 316         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
 317
 318         if (!fname) {
 319                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 320                                 ERRDOS, ERRbadpipe);
 321                 return;
 322         }
 323         nt_open_pipe(fname, conn, req, &pnum);
 324
 325         if (req->outbuf) {
 326                 /* error reply */
 327                 return;
 328         }
 329
 330         /*
 331          * Deal with pipe return.
 332          */
 333
 334         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 335                 /* This is very strange. We
 336                  * return 50 words, but only set
 337                  * the wcnt to 42 ? It's definately
 338                  * what happens on the wire....
 339                  */
 340                 reply_outbuf(req, 50, 0);
 341                 SCVAL(req->outbuf,smb_wct,42);
 342         } else {
 343                 reply_outbuf(req, 34, 0);
 344         }
 345
 346         p = (char *)req->outbuf + smb_vwv2;
 347         p++;
 348         SSVAL(p,0,pnum);
 349         p += 2;
 350         SIVAL(p,0,FILE_WAS_OPENED);
 351         p += 4;
 352         p += 32;
 353         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 354         p += 20;
 355         /* File type. */
 356         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 357         /* Device state. */
 358         SSVAL(p,2, 0x5FF); /* ? */
 359         p += 4;
 360
 361         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 362                 p += 25;
 363                 SIVAL(p,0,FILE_GENERIC_ALL);
 364                 /*
 365                  * For pipes W2K3 seems to return
 366                  * 0x12019B next.
 367                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 368                  */
 369                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 370         }
 371
 372         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 373
 374         chain_reply(req);
 375 }
 376
 377 struct case_semantics_state {
 378         connection_struct *conn;
 379         bool case_sensitive;
 380         bool case_preserve;
 381         bool short_case_preserve;
 382 };
 383
 384 /****************************************************************************
 385  Restore case semantics.
 386 ****************************************************************************/
 387
 388 static int restore_case_semantics(struct case_semantics_state *state)
 389 {
 390         state->conn->case_sensitive = state->case_sensitive;
 391         state->conn->case_preserve = state->case_preserve;
 392         state->conn->short_case_preserve = state->short_case_preserve;
 393         return 0;
 394 }
 395
 396 /****************************************************************************
 397  Save case semantics.
 398 ****************************************************************************/
 399
 400 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 401                                                 connection_struct *conn)
 402 {
 403         struct case_semantics_state *result;
 404
 405         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 406                 return NULL;
 407         }
 408
 409         result->conn = conn;
 410         result->case_sensitive = conn->case_sensitive;
 411         result->case_preserve = conn->case_preserve;
 412         result->short_case_preserve = conn->short_case_preserve;
 413
 414         /* Set to POSIX. */
 415         conn->case_sensitive = True;
 416         conn->case_preserve = True;
 417         conn->short_case_preserve = True;
 418
 419         talloc_set_destructor(result, restore_case_semantics);
 420
 421         return result;
 422 }
 423
 424 /****************************************************************************
 425  Reply to an NT create and X call.
 426 ****************************************************************************/
 427
 428 void reply_ntcreate_and_X(struct smb_request *req)
 429 {
 430         connection_struct *conn = req->conn;
 431         struct smb_filename *smb_fname = NULL;
 432         char *fname = NULL;
 433         uint32 flags;
 434         uint32 access_mask;
 435         uint32 file_attributes;
 436         uint32 share_access;
 437         uint32 create_disposition;
 438         uint32 create_options;
 439         uint16 root_dir_fid;
 440         uint64_t allocation_size;
 441         /* Breakout the oplock request bits so we can set the
 442            reply bits separately. */
 443         uint32 fattr=0;
 444         SMB_OFF_T file_len = 0;
 445         int info = 0;
 446         files_struct *fsp = NULL;
 447         char *p = NULL;
 448         struct timespec create_timespec;
 449         struct timespec c_timespec;
 450         struct timespec a_timespec;
 451         struct timespec m_timespec;
 452         struct timespec write_time_ts;
 453         NTSTATUS status;
 454         int oplock_request;
 455         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 456         struct case_semantics_state *case_state = NULL;
 457         TALLOC_CTX *ctx = talloc_tos();
 458
 459         START_PROFILE(SMBntcreateX);
 460
 461         if (req->wct < 24) {
 462                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 463                 goto out;
 464         }
 465
 466         flags = IVAL(req->vwv+3, 1);
 467         access_mask = IVAL(req->vwv+7, 1);
 468         file_attributes = IVAL(req->vwv+13, 1);
 469         share_access = IVAL(req->vwv+15, 1);
 470         create_disposition = IVAL(req->vwv+17, 1);
 471         create_options = IVAL(req->vwv+19, 1);
 472         root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
 473
 474         allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
 475 #ifdef LARGE_SMB_OFF_T
 476         allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
 477 #endif
 478
 479         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 480                             STR_TERMINATE, &status);
 481
 482         if (!NT_STATUS_IS_OK(status)) {
 483                 reply_nterror(req, status);
 484                 goto out;
 485         }
 486
 487         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 488                   "file_attributes = 0x%x, share_access = 0x%x, "
 489                   "create_disposition = 0x%x create_options = 0x%x "
 490                   "root_dir_fid = 0x%x, fname = %s\n",
 491                         (unsigned int)flags,
 492                         (unsigned int)access_mask,
 493                         (unsigned int)file_attributes,
 494                         (unsigned int)share_access,
 495                         (unsigned int)create_disposition,
 496                         (unsigned int)create_options,
 497                         (unsigned int)root_dir_fid,
 498                         fname));
 499
 500         /*
 501          * we need to remove ignored bits when they come directly from the client
 502          * because we reuse some of them for internal stuff
 503          */
 504         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 505
 506         /*
 507          * If it's an IPC, use the pipe handler.
 508          */
 509
 510         if (IS_IPC(conn)) {
 511                 if (lp_nt_pipe_support()) {
 512                         do_ntcreate_pipe_open(conn, req);
 513                         goto out;
 514                 }
 515                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 516                 goto out;
 517         }
 518
 519         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 520         if (oplock_request) {
 521                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 522                         ? BATCH_OPLOCK : 0;
 523         }
 524
 525         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 526                 case_state = set_posix_case_semantics(ctx, conn);
 527                 if (!case_state) {
 528                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 529                         goto out;
 530                 }
 531         }
 532
 533         status = filename_convert(ctx,
 534                                 conn,
 535                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 536                                 fname,
 537                                 0,
 538                                 NULL,
 539                                 &smb_fname);
 540
 541         TALLOC_FREE(case_state);
 542
 543         if (!NT_STATUS_IS_OK(status)) {
 544                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 545                         reply_botherror(req,
 546                                 NT_STATUS_PATH_NOT_COVERED,
 547                                 ERRSRV, ERRbadpath);
 548                         goto out;
 549                 }
 550                 reply_nterror(req, status);
 551                 goto out;
 552         }
 553
 554         /*
 555          * Bug #6898 - clients using Windows opens should
 556          * never be able to set this attribute into the
 557          * VFS.
 558          */
 559         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 560
 561         status = SMB_VFS_CREATE_FILE(
 562                 conn,                                   /* conn */
 563                 req,                                    /* req */
 564                 root_dir_fid,                           /* root_dir_fid */
 565                 smb_fname,                              /* fname */
 566                 access_mask,                            /* access_mask */
 567                 share_access,                           /* share_access */
 568                 create_disposition,                     /* create_disposition*/
 569                 create_options,                         /* create_options */
 570                 file_attributes,                        /* file_attributes */
 571                 oplock_request,                         /* oplock_request */
 572                 allocation_size,                        /* allocation_size */
 573                 NULL,                                   /* sd */
 574                 NULL,                                   /* ea_list */
 575                 &fsp,                                   /* result */
 576                 &info);                                 /* pinfo */
 577
 578         if (!NT_STATUS_IS_OK(status)) {
 579                 if (open_was_deferred(req->mid)) {
 580                         /* We have re-scheduled this call, no error. */
 581                         goto out;
 582                 }
 583                 reply_openerror(req, status);
 584                 goto out;
 585         }
 586
 587         /* Ensure we're pointing at the correct stat struct. */
 588         TALLOC_FREE(smb_fname);
 589         smb_fname = fsp->fsp_name;
 590
 591         /*
 592          * If the caller set the extended oplock request bit
 593          * and we granted one (by whatever means) - set the
 594          * correct bit for extended oplock reply.
 595          */
 596
 597         if (oplock_request &&
 598             (lp_fake_oplocks(SNUM(conn))
 599              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 600
 601                 /*
 602                  * Exclusive oplock granted
 603                  */
 604
 605                 if (flags & REQUEST_BATCH_OPLOCK) {
 606                         oplock_granted = BATCH_OPLOCK_RETURN;
 607                 } else {
 608                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 609                 }
 610         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 611                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 612         } else {
 613                 oplock_granted = NO_OPLOCK_RETURN;
 614         }
 615
 616         file_len = smb_fname->st.st_ex_size;
 617
 618         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 619                 /* This is very strange. We
 620                  * return 50 words, but only set
 621                  * the wcnt to 42 ? It's definately
 622                  * what happens on the wire....
 623                  */
 624                 reply_outbuf(req, 50, 0);
 625                 SCVAL(req->outbuf,smb_wct,42);
 626         } else {
 627                 reply_outbuf(req, 34, 0);
 628         }
 629
 630         p = (char *)req->outbuf + smb_vwv2;
 631
 632         SCVAL(p, 0, oplock_granted);
 633
 634         p++;
 635         SSVAL(p,0,fsp->fnum);
 636         p += 2;
 637         if ((create_disposition == FILE_SUPERSEDE)
 638             && (info == FILE_WAS_OVERWRITTEN)) {
 639                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 640         } else {
 641                 SIVAL(p,0,info);
 642         }
 643         p += 4;
 644
 645         fattr = dos_mode(conn, smb_fname);
 646         if (fattr == 0) {
 647                 fattr = FILE_ATTRIBUTE_NORMAL;
 648         }
 649
 650         /* Deal with other possible opens having a modified
 651            write time. JRA. */
 652         ZERO_STRUCT(write_time_ts);
 653         get_file_infos(fsp->file_id, NULL, &write_time_ts);
 654         if (!null_timespec(write_time_ts)) {
 655                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
 656         }
 657
 658         /* Create time. */
 659         create_timespec = get_create_timespec(conn, fsp, smb_fname);
 660         a_timespec = smb_fname->st.st_ex_atime;
 661         m_timespec = smb_fname->st.st_ex_mtime;
 662         c_timespec = get_change_timespec(conn, fsp, smb_fname);
 663
 664         if (lp_dos_filetime_resolution(SNUM(conn))) {
 665                 dos_filetime_timespec(&create_timespec);
 666                 dos_filetime_timespec(&a_timespec);
 667                 dos_filetime_timespec(&m_timespec);
 668                 dos_filetime_timespec(&c_timespec);
 669         }
 670
 671         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
 672         p += 8;
 673         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
 674         p += 8;
 675         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
 676         p += 8;
 677         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
 678         p += 8;
 679         SIVAL(p,0,fattr); /* File Attributes. */
 680         p += 4;
 681         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 682         p += 8;
 683         SOFF_T(p,0,file_len);
 684         p += 8;
 685         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 686                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
 687                 size_t num_names = 0;
 688                 unsigned int num_streams;
 689                 struct stream_struct *streams = NULL;
 690
 691                 /* Do we have any EA's ? */
 692                 status = get_ea_names_from_file(ctx, conn, fsp,
 693                                 smb_fname->base_name, NULL, &num_names);
 694                 if (NT_STATUS_IS_OK(status) && num_names) {
 695                         file_status &= ~NO_EAS;
 696                 }
 697                 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
 698                         &num_streams, &streams);
 699                 /* There is always one stream, ::$DATA. */
 700                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
 701                         file_status &= ~NO_SUBSTREAMS;
 702                 }
 703                 TALLOC_FREE(streams);
 704                 SSVAL(p,2,file_status);
 705         }
 706         p += 4;
 707         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 708
 709         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 710                 uint32 perms = 0;
 711                 p += 25;
 712                 if (fsp->is_directory ||
 713                     can_write_to_file(conn, smb_fname)) {
 714                         perms = FILE_GENERIC_ALL;
 715                 } else {
 716                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 717                 }
 718                 SIVAL(p,0,perms);
 719         }
 720
 721         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
 722                 fsp->fnum, smb_fname_str_dbg(smb_fname)));
 723
 724         chain_reply(req);
 725  out:
 726         END_PROFILE(SMBntcreateX);
 727         return;
 728 }
 729
 730 /****************************************************************************
 731  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 732 ****************************************************************************/
 733
 734 static void do_nt_transact_create_pipe(connection_struct *conn,
 735                                        struct smb_request *req,
 736                                        uint16 **ppsetup, uint32 setup_count,
 737                                        char **ppparams, uint32 parameter_count,
 738                                        char **ppdata, uint32 data_count)
 739 {
 740         char *fname = NULL;
 741         char *params = *ppparams;
 742         int pnum = -1;
 743         char *p = NULL;
 744         NTSTATUS status;
 745         size_t param_len;
 746         uint32 flags;
 747         TALLOC_CTX *ctx = talloc_tos();
 748
 749         /*
 750          * Ensure minimum number of parameters sent.
 751          */
 752
 753         if(parameter_count < 54) {
 754                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 755                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 756                 return;
 757         }
 758
 759         flags = IVAL(params,0);
 760
 761         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
 762                         parameter_count-53, STR_TERMINATE,
 763                         &status);
 764         if (!NT_STATUS_IS_OK(status)) {
 765                 reply_nterror(req, status);
 766                 return;
 767         }
 768
 769         nt_open_pipe(fname, conn, req, &pnum);
 770
 771         if (req->outbuf) {
 772                 /* Error return */
 773                 return;
 774         }
 775
 776         /* Realloc the size of parameters and data we will return */
 777         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 778                 /* Extended response is 32 more byyes. */
 779                 param_len = 101;
 780         } else {
 781                 param_len = 69;
 782         }
 783         params = nttrans_realloc(ppparams, param_len);
 784         if(params == NULL) {
 785                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 786                 return;
 787         }
 788
 789         p = params;
 790         SCVAL(p,0,NO_OPLOCK_RETURN);
 791
 792         p += 2;
 793         SSVAL(p,0,pnum);
 794         p += 2;
 795         SIVAL(p,0,FILE_WAS_OPENED);
 796         p += 8;
 797
 798         p += 32;
 799         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 800         p += 20;
 801         /* File type. */
 802         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 803         /* Device state. */
 804         SSVAL(p,2, 0x5FF); /* ? */
 805         p += 4;
 806
 807         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 808                 p += 25;
 809                 SIVAL(p,0,FILE_GENERIC_ALL);
 810                 /*
 811                  * For pipes W2K3 seems to return
 812                  * 0x12019B next.
 813                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 814                  */
 815                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 816         }
 817
 818         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 819
 820         /* Send the required number of replies */
 821         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 822
 823         return;
 824 }
 825
 826 /****************************************************************************
 827  Internal fn to set security descriptors.
 828 ****************************************************************************/
 829
 830 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
 831                        uint32 security_info_sent)
 832 {
 833         SEC_DESC *psd = NULL;
 834         NTSTATUS status;
 835
 836         if (sd_len == 0) {
 837                 return NT_STATUS_INVALID_PARAMETER;
 838         }
 839
 840         if (!CAN_WRITE(fsp->conn)) {
 841                 return NT_STATUS_ACCESS_DENIED;
 842         }
 843
 844         if (!lp_nt_acl_support(SNUM(fsp->conn))) {
 845                 return NT_STATUS_OK;
 846         }
 847
 848         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 849
 850         if (!NT_STATUS_IS_OK(status)) {
 851                 return status;
 852         }
 853
 854         if (psd->owner_sid == NULL) {
 855                 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
 856         }
 857         if (psd->group_sid == NULL) {
 858                 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
 859         }
 860
 861         /* Ensure we have at least one thing set. */
 862         if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
 863                 return NT_STATUS_INVALID_PARAMETER;
 864         }
 865
 866         /* Ensure we have the rights to do this. */
 867         if (security_info_sent & SECINFO_OWNER) {
 868                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 869                         return NT_STATUS_ACCESS_DENIED;
 870                 }
 871         }
 872
 873         if (security_info_sent & SECINFO_GROUP) {
 874                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 875                         return NT_STATUS_ACCESS_DENIED;
 876                 }
 877         }
 878
 879         if (security_info_sent & SECINFO_DACL) {
 880                 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
 881                         return NT_STATUS_ACCESS_DENIED;
 882                 }
 883                 /* Convert all the generic bits. */
 884                 if (psd->dacl) {
 885                         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 886                 }
 887         }
 888
 889         if (security_info_sent & SECINFO_SACL) {
 890                 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
 891                         return NT_STATUS_ACCESS_DENIED;
 892                 }
 893                 /* Convert all the generic bits. */
 894                 if (psd->sacl) {
 895                         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 896                 }
 897         }
 898
 899         if (DEBUGLEVEL >= 10) {
 900                 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
 901                 NDR_PRINT_DEBUG(security_descriptor, psd);
 902         }
 903
 904         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 905
 906         TALLOC_FREE(psd);
 907
 908         return status;
 909 }
 910
 911 /****************************************************************************
 912  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
 913 ****************************************************************************/
 914
 915 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
 916 {
 917         struct ea_list *ea_list_head = NULL;
 918         size_t offset = 0;
 919
 920         if (data_size < 4) {
 921                 return NULL;
 922         }
 923
 924         while (offset + 4 <= data_size) {
 925                 size_t next_offset = IVAL(pdata,offset);
 926                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
 927
 928                 if (!eal) {
 929                         return NULL;
 930                 }
 931
 932                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
 933                 if (next_offset == 0) {
 934                         break;
 935                 }
 936                 offset += next_offset;
 937         }
 938
 939         return ea_list_head;
 940 }
 941
 942 /****************************************************************************
 943  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
 944 ****************************************************************************/
 945
 946 static void call_nt_transact_create(connection_struct *conn,
 947                                     struct smb_request *req,
 948                                     uint16 **ppsetup, uint32 setup_count,
 949                                     char **ppparams, uint32 parameter_count,
 950                                     char **ppdata, uint32 data_count,
 951                                     uint32 max_data_count)
 952 {
 953         struct smb_filename *smb_fname = NULL;
 954         char *fname = NULL;
 955         char *params = *ppparams;
 956         char *data = *ppdata;
 957         /* Breakout the oplock request bits so we can set the reply bits separately. */
 958         uint32 fattr=0;
 959         SMB_OFF_T file_len = 0;
 960         int info = 0;
 961         files_struct *fsp = NULL;
 962         char *p = NULL;
 963         uint32 flags;
 964         uint32 access_mask;
 965         uint32 file_attributes;
 966         uint32 share_access;
 967         uint32 create_disposition;
 968         uint32 create_options;
 969         uint32 sd_len;
 970         struct security_descriptor *sd = NULL;
 971         uint32 ea_len;
 972         uint16 root_dir_fid;
 973         struct timespec create_timespec;
 974         struct timespec c_timespec;
 975         struct timespec a_timespec;
 976         struct timespec m_timespec;
 977         struct timespec write_time_ts;
 978         struct ea_list *ea_list = NULL;
 979         NTSTATUS status;
 980         size_t param_len;
 981         uint64_t allocation_size;
 982         int oplock_request;
 983         uint8_t oplock_granted;
 984         struct case_semantics_state *case_state = NULL;
 985         TALLOC_CTX *ctx = talloc_tos();
 986
 987         DEBUG(5,("call_nt_transact_create\n"));
 988
 989         /*
 990          * If it's an IPC, use the pipe handler.
 991          */
 992
 993         if (IS_IPC(conn)) {
 994                 if (lp_nt_pipe_support()) {
 995                         do_nt_transact_create_pipe(
 996                                 conn, req,
 997                                 ppsetup, setup_count,
 998                                 ppparams, parameter_count,
 999                                 ppdata, data_count);
1000                         goto out;
1001                 }
1002                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1003                 goto out;
1004         }
1005
1006         /*
1007          * Ensure minimum number of parameters sent.
1008          */
1009
1010         if(parameter_count < 54) {
1011                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1012                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1013                 goto out;
1014         }
1015
1016         flags = IVAL(params,0);
1017         access_mask = IVAL(params,8);
1018         file_attributes = IVAL(params,20);
1019         share_access = IVAL(params,24);
1020         create_disposition = IVAL(params,28);
1021         create_options = IVAL(params,32);
1022         sd_len = IVAL(params,36);
1023         ea_len = IVAL(params,40);
1024         root_dir_fid = (uint16)IVAL(params,4);
1025         allocation_size = (uint64_t)IVAL(params,12);
1026 #ifdef LARGE_SMB_OFF_T
1027         allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
1028 #endif
1029
1030         /*
1031          * we need to remove ignored bits when they come directly from the client
1032          * because we reuse some of them for internal stuff
1033          */
1034         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1035
1036         /* Ensure the data_len is correct for the sd and ea values given. */
1037         if ((ea_len + sd_len > data_count)
1038             || (ea_len > data_count) || (sd_len > data_count)
1039             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1040                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1041                            "%u, data_count = %u\n", (unsigned int)ea_len,
1042                            (unsigned int)sd_len, (unsigned int)data_count));
1043                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1044                 goto out;
1045         }
1046
1047         if (sd_len) {
1048                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1049                            sd_len));
1050
1051                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1052                                              &sd);
1053                 if (!NT_STATUS_IS_OK(status)) {
1054                         DEBUG(10, ("call_nt_transact_create: "
1055                                    "unmarshall_sec_desc failed: %s\n",
1056                                    nt_errstr(status)));
1057                         reply_nterror(req, status);
1058                         goto out;
1059                 }
1060         }
1061
1062         if (ea_len) {
1063                 if (!lp_ea_support(SNUM(conn))) {
1064                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1065                                    "EA's not supported.\n",
1066                                    (unsigned int)ea_len));
1067                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1068                         goto out;
1069                 }
1070
1071                 if (ea_len < 10) {
1072                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1073                                   "too small (should be more than 10)\n",
1074                                   (unsigned int)ea_len ));
1075                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1076                         goto out;
1077                 }
1078
1079                 /* We have already checked that ea_len <= data_count here. */
1080                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1081                                                ea_len);
1082                 if (ea_list == NULL) {
1083                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1084                         goto out;
1085                 }
1086         }
1087
1088         srvstr_get_path(ctx, params, req->flags2, &fname,
1089                         params+53, parameter_count-53,
1090                         STR_TERMINATE, &status);
1091         if (!NT_STATUS_IS_OK(status)) {
1092                 reply_nterror(req, status);
1093                 goto out;
1094         }
1095
1096         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1097                 case_state = set_posix_case_semantics(ctx, conn);
1098                 if (!case_state) {
1099                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1100                         goto out;
1101                 }
1102         }
1103
1104         status = filename_convert(ctx,
1105                                 conn,
1106                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1107                                 fname,
1108                                 0,
1109                                 NULL,
1110                                 &smb_fname);
1111
1112         TALLOC_FREE(case_state);
1113
1114         if (!NT_STATUS_IS_OK(status)) {
1115                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1116                         reply_botherror(req,
1117                                 NT_STATUS_PATH_NOT_COVERED,
1118                                 ERRSRV, ERRbadpath);
1119                         goto out;
1120                 }
1121                 reply_nterror(req, status);
1122                 goto out;
1123         }
1124
1125         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1126         if (oplock_request) {
1127                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1128                         ? BATCH_OPLOCK : 0;
1129         }
1130
1131         /*
1132          * Bug #6898 - clients using Windows opens should
1133          * never be able to set this attribute into the
1134          * VFS.
1135          */
1136         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1137
1138         status = SMB_VFS_CREATE_FILE(
1139                 conn,                                   /* conn */
1140                 req,                                    /* req */
1141                 root_dir_fid,                           /* root_dir_fid */
1142                 smb_fname,                              /* fname */
1143                 access_mask,                            /* access_mask */
1144                 share_access,                           /* share_access */
1145                 create_disposition,                     /* create_disposition*/
1146                 create_options,                         /* create_options */
1147                 file_attributes,                        /* file_attributes */
1148                 oplock_request,                         /* oplock_request */
1149                 allocation_size,                        /* allocation_size */
1150                 sd,                                     /* sd */
1151                 ea_list,                                /* ea_list */
1152                 &fsp,                                   /* result */
1153                 &info);                                 /* pinfo */
1154
1155         if(!NT_STATUS_IS_OK(status)) {
1156                 if (open_was_deferred(req->mid)) {
1157                         /* We have re-scheduled this call, no error. */
1158                         return;
1159                 }
1160                 reply_openerror(req, status);
1161                 goto out;
1162         }
1163
1164         /* Ensure we're pointing at the correct stat struct. */
1165         TALLOC_FREE(smb_fname);
1166         smb_fname = fsp->fsp_name;
1167
1168         /*
1169          * If the caller set the extended oplock request bit
1170          * and we granted one (by whatever means) - set the
1171          * correct bit for extended oplock reply.
1172          */
1173
1174         if (oplock_request &&
1175             (lp_fake_oplocks(SNUM(conn))
1176              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1177
1178                 /*
1179                  * Exclusive oplock granted
1180                  */
1181
1182                 if (flags & REQUEST_BATCH_OPLOCK) {
1183                         oplock_granted = BATCH_OPLOCK_RETURN;
1184                 } else {
1185                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1186                 }
1187         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1188                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1189         } else {
1190                 oplock_granted = NO_OPLOCK_RETURN;
1191         }
1192
1193         file_len = smb_fname->st.st_ex_size;
1194
1195         /* Realloc the size of parameters and data we will return */
1196         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1197                 /* Extended response is 32 more byyes. */
1198                 param_len = 101;
1199         } else {
1200                 param_len = 69;
1201         }
1202         params = nttrans_realloc(ppparams, param_len);
1203         if(params == NULL) {
1204                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1205                 goto out;
1206         }
1207
1208         p = params;
1209         SCVAL(p, 0, oplock_granted);
1210
1211         p += 2;
1212         SSVAL(p,0,fsp->fnum);
1213         p += 2;
1214         if ((create_disposition == FILE_SUPERSEDE)
1215             && (info == FILE_WAS_OVERWRITTEN)) {
1216                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1217         } else {
1218                 SIVAL(p,0,info);
1219         }
1220         p += 8;
1221
1222         fattr = dos_mode(conn, smb_fname);
1223         if (fattr == 0) {
1224                 fattr = FILE_ATTRIBUTE_NORMAL;
1225         }
1226
1227         /* Deal with other possible opens having a modified
1228            write time. JRA. */
1229         ZERO_STRUCT(write_time_ts);
1230         get_file_infos(fsp->file_id, NULL, &write_time_ts);
1231         if (!null_timespec(write_time_ts)) {
1232                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1233         }
1234
1235         /* Create time. */
1236         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1237         a_timespec = smb_fname->st.st_ex_atime;
1238         m_timespec = smb_fname->st.st_ex_mtime;
1239         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1240
1241         if (lp_dos_filetime_resolution(SNUM(conn))) {
1242                 dos_filetime_timespec(&create_timespec);
1243                 dos_filetime_timespec(&a_timespec);
1244                 dos_filetime_timespec(&m_timespec);
1245                 dos_filetime_timespec(&c_timespec);
1246         }
1247
1248         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1249         p += 8;
1250         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1251         p += 8;
1252         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1253         p += 8;
1254         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1255         p += 8;
1256         SIVAL(p,0,fattr); /* File Attributes. */
1257         p += 4;
1258         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1259         p += 8;
1260         SOFF_T(p,0,file_len);
1261         p += 8;
1262         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1263                 SSVAL(p,2,0x7);
1264         }
1265         p += 4;
1266         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1267
1268         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1269                 uint32 perms = 0;
1270                 p += 25;
1271                 if (fsp->is_directory ||
1272                     can_write_to_file(conn, smb_fname)) {
1273                         perms = FILE_GENERIC_ALL;
1274                 } else {
1275                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1276                 }
1277                 SIVAL(p,0,perms);
1278         }
1279
1280         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1281                  smb_fname_str_dbg(smb_fname)));
1282
1283         /* Send the required number of replies */
1284         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1285  out:
1286         return;
1287 }
1288
1289 /****************************************************************************
1290  Reply to a NT CANCEL request.
1291  conn POINTER CAN BE NULL HERE !
1292 ****************************************************************************/
1293
1294 void reply_ntcancel(struct smb_request *req)
1295 {
1296         /*
1297          * Go through and cancel any pending change notifies.
1298          */
1299
1300         START_PROFILE(SMBntcancel);
1301         srv_cancel_sign_response(smbd_server_conn);
1302         remove_pending_change_notify_requests_by_mid(req->mid);
1303         remove_pending_lock_requests_by_mid(req->mid);
1304
1305         DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1306
1307         END_PROFILE(SMBntcancel);
1308         return;
1309 }
1310
1311 /****************************************************************************
1312  Copy a file.
1313 ****************************************************************************/
1314
1315 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1316                                 connection_struct *conn,
1317                                 struct smb_request *req,
1318                                 struct smb_filename *smb_fname_src,
1319                                 struct smb_filename *smb_fname_dst,
1320                                 uint32 attrs)
1321 {
1322         files_struct *fsp1,*fsp2;
1323         uint32 fattr;
1324         int info;
1325         SMB_OFF_T ret=-1;
1326         NTSTATUS status = NT_STATUS_OK;
1327         char *parent;
1328
1329         if (!CAN_WRITE(conn)) {
1330                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1331                 goto out;
1332         }
1333
1334         /* Source must already exist. */
1335         if (!VALID_STAT(smb_fname_src->st)) {
1336                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1337                 goto out;
1338         }
1339
1340         /* Ensure attributes match. */
1341         fattr = dos_mode(conn, smb_fname_src);
1342         if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1343                 status = NT_STATUS_NO_SUCH_FILE;
1344                 goto out;
1345         }
1346
1347         /* Disallow if dst file already exists. */
1348         if (VALID_STAT(smb_fname_dst->st)) {
1349                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1350                 goto out;
1351         }
1352
1353         /* No links from a directory. */
1354         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1355                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1356                 goto out;
1357         }
1358
1359         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1360                   smb_fname_str_dbg(smb_fname_src),
1361                   smb_fname_str_dbg(smb_fname_dst)));
1362
1363         status = SMB_VFS_CREATE_FILE(
1364                 conn,                                   /* conn */
1365                 req,                                    /* req */
1366                 0,                                      /* root_dir_fid */
1367                 smb_fname_src,                          /* fname */
1368                 FILE_READ_DATA,                         /* access_mask */
1369                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1370                     FILE_SHARE_DELETE),
1371                 FILE_OPEN,                              /* create_disposition*/
1372                 0,                                      /* create_options */
1373                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1374                 NO_OPLOCK,                              /* oplock_request */
1375                 0,                                      /* allocation_size */
1376                 NULL,                                   /* sd */
1377                 NULL,                                   /* ea_list */
1378                 &fsp1,                                  /* result */
1379                 &info);                                 /* pinfo */
1380
1381         if (!NT_STATUS_IS_OK(status)) {
1382                 goto out;
1383         }
1384
1385         status = SMB_VFS_CREATE_FILE(
1386                 conn,                                   /* conn */
1387                 req,                                    /* req */
1388                 0,                                      /* root_dir_fid */
1389                 smb_fname_dst,                          /* fname */
1390                 FILE_WRITE_DATA,                        /* access_mask */
1391                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1392                     FILE_SHARE_DELETE),
1393                 FILE_CREATE,                            /* create_disposition*/
1394                 0,                                      /* create_options */
1395                 fattr,                                  /* file_attributes */
1396                 NO_OPLOCK,                              /* oplock_request */
1397                 0,                                      /* allocation_size */
1398                 NULL,                                   /* sd */
1399                 NULL,                                   /* ea_list */
1400                 &fsp2,                                  /* result */
1401                 &info);                                 /* pinfo */
1402
1403         if (!NT_STATUS_IS_OK(status)) {
1404                 close_file(NULL, fsp1, ERROR_CLOSE);
1405                 goto out;
1406         }
1407
1408         if (smb_fname_src->st.st_ex_size) {
1409                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1410         }
1411
1412         /*
1413          * As we are opening fsp1 read-only we only expect
1414          * an error on close on fsp2 if we are out of space.
1415          * Thus we don't look at the error return from the
1416          * close of fsp1.
1417          */
1418         close_file(NULL, fsp1, NORMAL_CLOSE);
1419
1420         /* Ensure the modtime is set correctly on the destination file. */
1421         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1422
1423         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1424
1425         /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1426            creates the file. This isn't the correct thing to do in the copy
1427            case. JRA */
1428         if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1429                             NULL)) {
1430                 status = NT_STATUS_NO_MEMORY;
1431                 goto out;
1432         }
1433         file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1434         TALLOC_FREE(parent);
1435
1436         if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1437                 status = NT_STATUS_DISK_FULL;
1438                 goto out;
1439         }
1440  out:
1441         if (!NT_STATUS_IS_OK(status)) {
1442                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1443                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1444                         smb_fname_str_dbg(smb_fname_dst)));
1445         }
1446
1447         return status;
1448 }
1449
1450 /****************************************************************************
1451  Reply to a NT rename request.
1452 ****************************************************************************/
1453
1454 void reply_ntrename(struct smb_request *req)
1455 {
1456         connection_struct *conn = req->conn;
1457         struct smb_filename *smb_fname_old = NULL;
1458         struct smb_filename *smb_fname_new = NULL;
1459         char *oldname = NULL;
1460         char *newname = NULL;
1461         const char *p;
1462         NTSTATUS status;
1463         bool src_has_wcard = False;
1464         bool dest_has_wcard = False;
1465         uint32 attrs;
1466         uint32_t ucf_flags_src = 0;
1467         uint32_t ucf_flags_dst = 0;
1468         uint16 rename_type;
1469         TALLOC_CTX *ctx = talloc_tos();
1470
1471         START_PROFILE(SMBntrename);
1472
1473         if (req->wct < 4) {
1474                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1475                 goto out;
1476         }
1477
1478         attrs = SVAL(req->vwv+0, 0);
1479         rename_type = SVAL(req->vwv+1, 0);
1480
1481         p = (const char *)req->buf + 1;
1482         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1483                                        &status, &src_has_wcard);
1484         if (!NT_STATUS_IS_OK(status)) {
1485                 reply_nterror(req, status);
1486                 goto out;
1487         }
1488
1489         if (ms_has_wild(oldname)) {
1490                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1491                 goto out;
1492         }
1493
1494         p++;
1495         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1496                                        &status, &dest_has_wcard);
1497         if (!NT_STATUS_IS_OK(status)) {
1498                 reply_nterror(req, status);
1499                 goto out;
1500         }
1501
1502         /* The newname must begin with a ':' if the oldname contains a ':'. */
1503         if (strchr_m(oldname, ':') && (newname[0] != ':')) {
1504                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1505                 goto out;
1506         }
1507
1508         /*
1509          * If this is a rename operation, allow wildcards and save the
1510          * destination's last component.
1511          */
1512         if (rename_type == RENAME_FLAG_RENAME) {
1513                 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1514                 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1515         }
1516
1517         /* rename_internals() calls unix_convert(), so don't call it here. */
1518         status = filename_convert(ctx, conn,
1519                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1520                                   oldname,
1521                                   ucf_flags_src,
1522                                   NULL,
1523                                   &smb_fname_old);
1524         if (!NT_STATUS_IS_OK(status)) {
1525                 if (NT_STATUS_EQUAL(status,
1526                                     NT_STATUS_PATH_NOT_COVERED)) {
1527                         reply_botherror(req,
1528                                         NT_STATUS_PATH_NOT_COVERED,
1529                                         ERRSRV, ERRbadpath);
1530                         goto out;
1531                 }
1532                 reply_nterror(req, status);
1533                 goto out;
1534         }
1535
1536         status = filename_convert(ctx, conn,
1537                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1538                                   newname,
1539                                   ucf_flags_dst,
1540                                   &dest_has_wcard,
1541                                   &smb_fname_new);
1542         if (!NT_STATUS_IS_OK(status)) {
1543                 if (NT_STATUS_EQUAL(status,
1544                                     NT_STATUS_PATH_NOT_COVERED)) {
1545                         reply_botherror(req,
1546                                         NT_STATUS_PATH_NOT_COVERED,
1547                                         ERRSRV, ERRbadpath);
1548                         goto out;
1549                 }
1550                 reply_nterror(req, status);
1551                 goto out;
1552         }
1553
1554         DEBUG(3,("reply_ntrename: %s -> %s\n",
1555                  smb_fname_str_dbg(smb_fname_old),
1556                  smb_fname_str_dbg(smb_fname_new)));
1557
1558         switch(rename_type) {
1559                 case RENAME_FLAG_RENAME:
1560                         status = rename_internals(ctx, conn, req,
1561                                                   smb_fname_old, smb_fname_new,
1562                                                   attrs, False, src_has_wcard,
1563                                                   dest_has_wcard,
1564                                                   DELETE_ACCESS);
1565                         break;
1566                 case RENAME_FLAG_HARD_LINK:
1567                         if (src_has_wcard || dest_has_wcard) {
1568                                 /* No wildcards. */
1569                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1570                         } else {
1571                                 status = hardlink_internals(ctx, conn,
1572                                                             smb_fname_old,
1573                                                             smb_fname_new);
1574                         }
1575                         break;
1576                 case RENAME_FLAG_COPY:
1577                         if (src_has_wcard || dest_has_wcard) {
1578                                 /* No wildcards. */
1579                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1580                         } else {
1581                                 status = copy_internals(ctx, conn, req,
1582                                                         smb_fname_old,
1583                                                         smb_fname_new,
1584                                                         attrs);
1585                         }
1586                         break;
1587                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1588                         status = NT_STATUS_INVALID_PARAMETER;
1589                         break;
1590                 default:
1591                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1592                         break;
1593         }
1594
1595         if (!NT_STATUS_IS_OK(status)) {
1596                 if (open_was_deferred(req->mid)) {
1597                         /* We have re-scheduled this call. */
1598                         goto out;
1599                 }
1600
1601                 reply_nterror(req, status);
1602                 goto out;
1603         }
1604
1605         reply_outbuf(req, 0, 0);
1606  out:
1607         END_PROFILE(SMBntrename);
1608         return;
1609 }
1610
1611 /****************************************************************************
1612  Reply to a notify change - queue the request and
1613  don't allow a directory to be opened.
1614 ****************************************************************************/
1615
1616 static void smbd_smb1_notify_reply(struct smb_request *req,
1617                                    NTSTATUS error_code,
1618                                    uint8_t *buf, size_t len)
1619 {
1620         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1621 }
1622
1623 static void call_nt_transact_notify_change(connection_struct *conn,
1624                                            struct smb_request *req,
1625                                            uint16 **ppsetup,
1626                                            uint32 setup_count,
1627                                            char **ppparams,
1628                                            uint32 parameter_count,
1629                                            char **ppdata, uint32 data_count,
1630                                            uint32 max_data_count,
1631                                            uint32 max_param_count)
1632 {
1633         uint16 *setup = *ppsetup;
1634         files_struct *fsp;
1635         uint32 filter;
1636         NTSTATUS status;
1637         bool recursive;
1638
1639         if(setup_count < 6) {
1640                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1641                 return;
1642         }
1643
1644         fsp = file_fsp(req, SVAL(setup,4));
1645         filter = IVAL(setup, 0);
1646         recursive = (SVAL(setup, 6) != 0) ? True : False;
1647
1648         DEBUG(3,("call_nt_transact_notify_change\n"));
1649
1650         if(!fsp) {
1651                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1652                 return;
1653         }
1654
1655         {
1656                 char *filter_string;
1657
1658                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1659                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1660                         return;
1661                 }
1662
1663                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1664                          "called on %s, filter = %s, recursive = %d\n",
1665                          fsp_str_dbg(fsp), filter_string, recursive));
1666
1667                 TALLOC_FREE(filter_string);
1668         }
1669
1670         if((!fsp->is_directory) || (conn != fsp->conn)) {
1671                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1672                 return;
1673         }
1674
1675         if (fsp->notify == NULL) {
1676
1677                 status = change_notify_create(fsp, filter, recursive);
1678
1679                 if (!NT_STATUS_IS_OK(status)) {
1680                         DEBUG(10, ("change_notify_create returned %s\n",
1681                                    nt_errstr(status)));
1682                         reply_nterror(req, status);
1683                         return;
1684                 }
1685         }
1686
1687         if (fsp->notify->num_changes != 0) {
1688
1689                 /*
1690                  * We've got changes pending, respond immediately
1691                  */
1692
1693                 /*
1694                  * TODO: write a torture test to check the filtering behaviour
1695                  * here.
1696                  */
1697
1698                 change_notify_reply(fsp->conn, req,
1699                                     NT_STATUS_OK,
1700                                     max_param_count,
1701                                     fsp->notify,
1702                                     smbd_smb1_notify_reply);
1703
1704                 /*
1705                  * change_notify_reply() above has independently sent its
1706                  * results
1707                  */
1708                 return;
1709         }
1710
1711         /*
1712          * No changes pending, queue the request
1713          */
1714
1715         status = change_notify_add_request(req,
1716                         max_param_count,
1717                         filter,
1718                         recursive, fsp,
1719                         smbd_smb1_notify_reply);
1720         if (!NT_STATUS_IS_OK(status)) {
1721                 reply_nterror(req, status);
1722         }
1723         return;
1724 }
1725
1726 /****************************************************************************
1727  Reply to an NT transact rename command.
1728 ****************************************************************************/
1729
1730 static void call_nt_transact_rename(connection_struct *conn,
1731                                     struct smb_request *req,
1732                                     uint16 **ppsetup, uint32 setup_count,
1733                                     char **ppparams, uint32 parameter_count,
1734                                     char **ppdata, uint32 data_count,
1735                                     uint32 max_data_count)
1736 {
1737         char *params = *ppparams;
1738         char *new_name = NULL;
1739         files_struct *fsp = NULL;
1740         bool dest_has_wcard = False;
1741         NTSTATUS status;
1742         TALLOC_CTX *ctx = talloc_tos();
1743
1744         if(parameter_count < 5) {
1745                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1746                 return;
1747         }
1748
1749         fsp = file_fsp(req, SVAL(params, 0));
1750         if (!check_fsp(conn, req, fsp)) {
1751                 return;
1752         }
1753         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1754                               parameter_count - 4,
1755                               STR_TERMINATE, &status, &dest_has_wcard);
1756         if (!NT_STATUS_IS_OK(status)) {
1757                 reply_nterror(req, status);
1758                 return;
1759         }
1760
1761         /*
1762          * W2K3 ignores this request as the RAW-RENAME test
1763          * demonstrates, so we do.
1764          */
1765         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1766
1767         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1768                  fsp_str_dbg(fsp), new_name));
1769
1770         return;
1771 }
1772
1773 /******************************************************************************
1774  Fake up a completely empty SD.
1775 *******************************************************************************/
1776
1777 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1778 {
1779         size_t sd_size;
1780
1781         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1782         if(!*ppsd) {
1783                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1784                 return NT_STATUS_NO_MEMORY;
1785         }
1786
1787         return NT_STATUS_OK;
1788 }
1789
1790 /****************************************************************************
1791  Reply to query a security descriptor.
1792 ****************************************************************************/
1793
1794 static void call_nt_transact_query_security_desc(connection_struct *conn,
1795                                                  struct smb_request *req,
1796                                                  uint16 **ppsetup,
1797                                                  uint32 setup_count,
1798                                                  char **ppparams,
1799                                                  uint32 parameter_count,
1800                                                  char **ppdata,
1801                                                  uint32 data_count,
1802                                                  uint32 max_data_count)
1803 {
1804         char *params = *ppparams;
1805         char *data = *ppdata;
1806         SEC_DESC *psd = NULL;
1807         size_t sd_size;
1808         uint32 security_info_wanted;
1809         files_struct *fsp = NULL;
1810         NTSTATUS status;
1811         DATA_BLOB blob;
1812
1813         if(parameter_count < 8) {
1814                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1815                 return;
1816         }
1817
1818         fsp = file_fsp(req, SVAL(params,0));
1819         if(!fsp) {
1820                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1821                 return;
1822         }
1823
1824         security_info_wanted = IVAL(params,4);
1825
1826         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1827                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1828                  (unsigned int)security_info_wanted));
1829
1830         params = nttrans_realloc(ppparams, 4);
1831         if(params == NULL) {
1832                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1833                 return;
1834         }
1835
1836         /*
1837          * Get the permissions to return.
1838          */
1839
1840         if ((security_info_wanted & SECINFO_SACL) &&
1841                         !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1842                 reply_nterror(req,  NT_STATUS_ACCESS_DENIED);
1843                 return;
1844         }
1845
1846         if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1847                         !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1848                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1849                 return;
1850         }
1851
1852         if (!lp_nt_acl_support(SNUM(conn))) {
1853                 status = get_null_nt_acl(talloc_tos(), &psd);
1854         } else {
1855                 status = SMB_VFS_FGET_NT_ACL(
1856                         fsp, security_info_wanted, &psd);
1857         }
1858         if (!NT_STATUS_IS_OK(status)) {
1859                 reply_nterror(req, status);
1860                 return;
1861         }
1862
1863         if (!(security_info_wanted & SECINFO_OWNER)) {
1864                 psd->owner_sid = NULL;
1865         }
1866         if (!(security_info_wanted & SECINFO_GROUP)) {
1867                 psd->group_sid = NULL;
1868         }
1869         if (!(security_info_wanted & SECINFO_DACL)) {
1870                 psd->dacl = NULL;
1871         }
1872         if (!(security_info_wanted & SECINFO_SACL)) {
1873                 psd->sacl = NULL;
1874         }
1875
1876         /* If the SACL/DACL is NULL, but was requested, we mark that it is
1877          * present in the reply to match Windows behavior */
1878         if (psd->sacl == NULL &&
1879             security_info_wanted & SACL_SECURITY_INFORMATION)
1880                 psd->type |= SEC_DESC_SACL_PRESENT;
1881         if (psd->dacl == NULL &&
1882             security_info_wanted & DACL_SECURITY_INFORMATION)
1883                 psd->type |= SEC_DESC_DACL_PRESENT;
1884
1885         sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1886
1887         DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1888
1889         if (DEBUGLEVEL >= 10) {
1890                 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n",
1891                           fsp_str_dbg(fsp)));
1892                 NDR_PRINT_DEBUG(security_descriptor, psd);
1893         }
1894
1895         SIVAL(params,0,(uint32)sd_size);
1896
1897         if (max_data_count < sd_size) {
1898                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1899                                 params, 4, *ppdata, 0);
1900                 return;
1901         }
1902
1903         /*
1904          * Allocate the data we will point this at.
1905          */
1906
1907         data = nttrans_realloc(ppdata, sd_size);
1908         if(data == NULL) {
1909                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1910                 return;
1911         }
1912
1913         status = marshall_sec_desc(talloc_tos(), psd,
1914                                    &blob.data, &blob.length);
1915
1916         if (!NT_STATUS_IS_OK(status)) {
1917                 reply_nterror(req, status);
1918                 return;
1919         }
1920
1921         SMB_ASSERT(sd_size == blob.length);
1922         memcpy(data, blob.data, sd_size);
1923
1924         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1925
1926         return;
1927 }
1928
1929 /****************************************************************************
1930  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1931 ****************************************************************************/
1932
1933 static void call_nt_transact_set_security_desc(connection_struct *conn,
1934                                                struct smb_request *req,
1935                                                uint16 **ppsetup,
1936                                                uint32 setup_count,
1937                                                char **ppparams,
1938                                                uint32 parameter_count,
1939                                                char **ppdata,
1940                                                uint32 data_count,
1941                                                uint32 max_data_count)
1942 {
1943         char *params= *ppparams;
1944         char *data = *ppdata;
1945         files_struct *fsp = NULL;
1946         uint32 security_info_sent = 0;
1947         NTSTATUS status;
1948
1949         if(parameter_count < 8) {
1950                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1951                 return;
1952         }
1953
1954         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1955                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1956                 return;
1957         }
1958
1959         if(!lp_nt_acl_support(SNUM(conn))) {
1960                 goto done;
1961         }
1962
1963         security_info_sent = IVAL(params,4);
1964
1965         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
1966                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
1967
1968         if (data_count == 0) {
1969                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1970                 return;
1971         }
1972
1973         status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1974
1975         if (!NT_STATUS_IS_OK(status)) {
1976                 reply_nterror(req, status);
1977                 return;
1978         }
1979
1980   done:
1981         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1982         return;
1983 }
1984
1985 /****************************************************************************
1986  Reply to NT IOCTL
1987 ****************************************************************************/
1988
1989 static void call_nt_transact_ioctl(connection_struct *conn,
1990                                    struct smb_request *req,
1991                                    uint16 **ppsetup, uint32 setup_count,
1992                                    char **ppparams, uint32 parameter_count,
1993                                    char **ppdata, uint32 data_count,
1994                                    uint32 max_data_count)
1995 {
1996         uint32 function;
1997         uint16 fidnum;
1998         files_struct *fsp;
1999         uint8 isFSctl;
2000         uint8 compfilter;
2001         char *pdata = *ppdata;
2002
2003         if (setup_count != 8) {
2004                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2005                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2006                 return;
2007         }
2008
2009         function = IVAL(*ppsetup, 0);
2010         fidnum = SVAL(*ppsetup, 4);
2011         isFSctl = CVAL(*ppsetup, 6);
2012         compfilter = CVAL(*ppsetup, 7);
2013
2014         DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2015                  function, fidnum, isFSctl, compfilter));
2016
2017         fsp=file_fsp(req, fidnum);
2018         /* this check is done in each implemented function case for now
2019            because I don't want to break anything... --metze
2020         FSP_BELONGS_CONN(fsp,conn);*/
2021
2022         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2023
2024         switch (function) {
2025         case FSCTL_SET_SPARSE:
2026                 /* pretend this succeeded - tho strictly we should
2027                    mark the file sparse (if the local fs supports it)
2028                    so we can know if we need to pre-allocate or not */
2029
2030                 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
2031                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2032                 return;
2033
2034         case FSCTL_CREATE_OR_GET_OBJECT_ID:
2035         {
2036                 unsigned char objid[16];
2037
2038                 /* This should return the object-id on this file.
2039                  * I think I'll make this be the inode+dev. JRA.
2040                  */
2041
2042                 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2043
2044                 if (!fsp_belongs_conn(conn, req, fsp)) {
2045                         return;
2046                 }
2047
2048                 data_count = 64;
2049                 pdata = nttrans_realloc(ppdata, data_count);
2050                 if (pdata == NULL) {
2051                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2052                         return;
2053                 }
2054
2055                 /* For backwards compatibility only store the dev/inode. */
2056                 push_file_id_16(pdata, &fsp->file_id);
2057                 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2058                 push_file_id_16(pdata+32, &fsp->file_id);
2059                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2060                                 pdata, data_count);
2061                 return;
2062         }
2063
2064         case FSCTL_GET_REPARSE_POINT:
2065                 /* pretend this fail - my winXP does it like this
2066                  * --metze
2067                  */
2068
2069                 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2070                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2071                 return;
2072
2073         case FSCTL_SET_REPARSE_POINT:
2074                 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2075                  * --metze
2076                  */
2077
2078                 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2079                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2080                 return;
2081
2082         case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2083         {
2084                 /*
2085                  * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2086                  * and return their volume names.  If max_data_count is 16, then it is just
2087                  * asking for the number of volumes and length of the combined names.
2088                  *
2089                  * pdata is the data allocated by our caller, but that uses
2090                  * total_data_count (which is 0 in our case) rather than max_data_count.
2091                  * Allocate the correct amount and return the pointer to let
2092                  * it be deallocated when we return.
2093                  */
2094                 SHADOW_COPY_DATA *shadow_data = NULL;
2095                 TALLOC_CTX *shadow_mem_ctx = NULL;
2096                 bool labels = False;
2097                 uint32 labels_data_count = 0;
2098                 uint32 i;
2099                 char *cur_pdata;
2100
2101                 if (!fsp_belongs_conn(conn, req, fsp)) {
2102                         return;
2103                 }
2104
2105                 if (max_data_count < 16) {
2106                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2107                                 max_data_count));
2108                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2109                         return;
2110                 }
2111
2112                 if (max_data_count > 16) {
2113                         labels = True;
2114                 }
2115
2116                 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2117                 if (shadow_mem_ctx == NULL) {
2118                         DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2119                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2120                         return;
2121                 }
2122
2123                 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
2124                 if (shadow_data == NULL) {
2125                         DEBUG(0,("TALLOC_ZERO() failed!\n"));
2126                         talloc_destroy(shadow_mem_ctx);
2127                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2128                         return;
2129                 }
2130
2131                 shadow_data->mem_ctx = shadow_mem_ctx;
2132
2133                 /*
2134                  * Call the VFS routine to actually do the work.
2135                  */
2136                 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2137                         talloc_destroy(shadow_data->mem_ctx);
2138                         if (errno == ENOSYS) {
2139                                 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2140                                         conn->connectpath));
2141                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2142                                 return;
2143                         } else {
2144                                 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2145                                         conn->connectpath));
2146                                 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2147                                 return;
2148                         }
2149                 }
2150
2151                 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2152
2153                 if (!labels) {
2154                         data_count = 16;
2155                 } else {
2156                         data_count = 12+labels_data_count+4;
2157                 }
2158
2159                 if (max_data_count<data_count) {
2160                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2161                                 max_data_count,data_count));
2162                         talloc_destroy(shadow_data->mem_ctx);
2163                         reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2164                         return;
2165                 }
2166
2167                 pdata = nttrans_realloc(ppdata, data_count);
2168                 if (pdata == NULL) {
2169                         talloc_destroy(shadow_data->mem_ctx);
2170                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2171                         return;
2172                 }
2173
2174                 cur_pdata = pdata;
2175
2176                 /* num_volumes 4 bytes */
2177                 SIVAL(pdata,0,shadow_data->num_volumes);
2178
2179                 if (labels) {
2180                         /* num_labels 4 bytes */
2181                         SIVAL(pdata,4,shadow_data->num_volumes);
2182                 }
2183
2184                 /* needed_data_count 4 bytes */
2185                 SIVAL(pdata, 8, labels_data_count+4);
2186
2187                 cur_pdata+=12;
2188
2189                 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2190                           shadow_data->num_volumes, fsp_str_dbg(fsp)));
2191                 if (labels && shadow_data->labels) {
2192                         for (i=0;i<shadow_data->num_volumes;i++) {
2193                                 srvstr_push(pdata, req->flags2,
2194                                             cur_pdata, shadow_data->labels[i],
2195                                             2*sizeof(SHADOW_COPY_LABEL),
2196                                             STR_UNICODE|STR_TERMINATE);
2197                                 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2198                                 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2199                         }
2200                 }
2201
2202                 talloc_destroy(shadow_data->mem_ctx);
2203
2204                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2205                                 pdata, data_count);
2206
2207                 return;
2208         }
2209
2210         case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2211         {
2212                 /* pretend this succeeded -
2213                  *
2214                  * we have to send back a list with all files owned by this SID
2215                  *
2216                  * but I have to check that --metze
2217                  */
2218                 DOM_SID sid;
2219                 uid_t uid;
2220                 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2221
2222                 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2223
2224                 if (!fsp_belongs_conn(conn, req, fsp)) {
2225                         return;
2226                 }
2227
2228                 /* unknown 4 bytes: this is not the length of the sid :-(  */
2229                 /*unknown = IVAL(pdata,0);*/
2230
2231                 if (!sid_parse(pdata+4,sid_len,&sid)) {
2232                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2233                         return;
2234                 }
2235
2236                 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2237
2238                 if (!sid_to_uid(&sid, &uid)) {
2239                         DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2240                                  sid_string_dbg(&sid),
2241                                  (unsigned long)sid_len));
2242                         uid = (-1);
2243                 }
2244
2245                 /* we can take a look at the find source :-)
2246                  *
2247                  * find ./ -uid $uid  -name '*'   is what we need here
2248                  *
2249                  *
2250                  * and send 4bytes len and then NULL terminated unicode strings
2251                  * for each file
2252                  *
2253                  * but I don't know how to deal with the paged results
2254                  * (maybe we can hang the result anywhere in the fsp struct)
2255                  *
2256                  * we don't send all files at once
2257                  * and at the next we should *not* start from the beginning,
2258                  * so we have to cache the result
2259                  *
2260                  * --metze
2261                  */
2262
2263                 /* this works for now... */
2264                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2265                 return;
2266         }
2267         default:
2268                 if (!logged_ioctl_message) {
2269                         logged_ioctl_message = true; /* Only print this once... */
2270                         DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2271                                  function));
2272                 }
2273         }
2274
2275         reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2276 }
2277
2278
2279 #ifdef HAVE_SYS_QUOTAS
2280 /****************************************************************************
2281  Reply to get user quota
2282 ****************************************************************************/
2283
2284 static void call_nt_transact_get_user_quota(connection_struct *conn,
2285                                             struct smb_request *req,
2286                                             uint16 **ppsetup,
2287                                             uint32 setup_count,
2288                                             char **ppparams,
2289                                             uint32 parameter_count,
2290                                             char **ppdata,
2291                                             uint32 data_count,
2292                                             uint32 max_data_count)
2293 {
2294         NTSTATUS nt_status = NT_STATUS_OK;
2295         char *params = *ppparams;
2296         char *pdata = *ppdata;
2297         char *entry;
2298         int data_len=0,param_len=0;
2299         int qt_len=0;
2300         int entry_len = 0;
2301         files_struct *fsp = NULL;
2302         uint16 level = 0;
2303         size_t sid_len;
2304         DOM_SID sid;
2305         bool start_enum = True;
2306         SMB_NTQUOTA_STRUCT qt;
2307         SMB_NTQUOTA_LIST *tmp_list;
2308         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2309
2310         ZERO_STRUCT(qt);
2311
2312         /* access check */
2313         if (conn->server_info->utok.uid != 0) {
2314                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2315                          "[%s]\n", lp_servicename(SNUM(conn)),
2316                          conn->server_info->unix_name));
2317                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2318                 return;
2319         }
2320
2321         /*
2322          * Ensure minimum number of parameters sent.
2323          */
2324
2325         if (parameter_count < 4) {
2326                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2327                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2328                 return;
2329         }
2330
2331         /* maybe we can check the quota_fnum */
2332         fsp = file_fsp(req, SVAL(params,0));
2333         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2334                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2335                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2336                 return;
2337         }
2338
2339         /* the NULL pointer checking for fsp->fake_file_handle->pd
2340          * is done by CHECK_NTQUOTA_HANDLE_OK()
2341          */
2342         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2343
2344         level = SVAL(params,2);
2345
2346         /* unknown 12 bytes leading in params */
2347
2348         switch (level) {
2349                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2350                         /* seems that we should continue with the enum here --metze */
2351
2352                         if (qt_handle->quota_list!=NULL &&
2353                             qt_handle->tmp_list==NULL) {
2354
2355                                 /* free the list */
2356                                 free_ntquota_list(&(qt_handle->quota_list));
2357
2358                                 /* Realloc the size of parameters and data we will return */
2359                                 param_len = 4;
2360                                 params = nttrans_realloc(ppparams, param_len);
2361                                 if(params == NULL) {
2362                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2363                                         return;
2364                                 }
2365
2366                                 data_len = 0;
2367                                 SIVAL(params,0,data_len);
2368
2369                                 break;
2370                         }
2371
2372                         start_enum = False;
2373
2374                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2375
2376                         if (qt_handle->quota_list==NULL &&
2377                                 qt_handle->tmp_list==NULL) {
2378                                 start_enum = True;
2379                         }
2380
2381                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2382                                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2383                                 return;
2384                         }
2385
2386                         /* Realloc the size of parameters and data we will return */
2387                         param_len = 4;
2388                         params = nttrans_realloc(ppparams, param_len);
2389                         if(params == NULL) {
2390                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2391                                 return;
2392                         }
2393
2394                         /* we should not trust the value in max_data_count*/
2395                         max_data_count = MIN(max_data_count,2048);
2396
2397                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2398                         if(pdata == NULL) {
2399                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2400                                 return;
2401                         }
2402
2403                         entry = pdata;
2404
2405                         /* set params Size of returned Quota Data 4 bytes*/
2406                         /* but set it later when we know it */
2407
2408                         /* for each entry push the data */
2409
2410                         if (start_enum) {
2411                                 qt_handle->tmp_list = qt_handle->quota_list;
2412                         }
2413
2414                         tmp_list = qt_handle->tmp_list;
2415
2416                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2417                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2418
2419                                 sid_len = ndr_size_dom_sid(
2420                                         &tmp_list->quotas->sid, NULL, 0);
2421                                 entry_len = 40 + sid_len;
2422
2423                                 /* nextoffset entry 4 bytes */
2424                                 SIVAL(entry,0,entry_len);
2425
2426                                 /* then the len of the SID 4 bytes */
2427                                 SIVAL(entry,4,sid_len);
2428
2429                                 /* unknown data 8 bytes uint64_t */
2430                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2431
2432                                 /* the used disk space 8 bytes uint64_t */
2433                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2434
2435                                 /* the soft quotas 8 bytes uint64_t */
2436                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2437
2438                                 /* the hard quotas 8 bytes uint64_t */
2439                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2440
2441                                 /* and now the SID */
2442                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2443                         }
2444
2445                         qt_handle->tmp_list = tmp_list;
2446
2447                         /* overwrite the offset of the last entry */
2448                         SIVAL(entry-entry_len,0,0);
2449
2450                         data_len = 4+qt_len;
2451                         /* overwrite the params quota_data_len */
2452                         SIVAL(params,0,data_len);
2453
2454                         break;
2455
2456                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2457
2458                         /* unknown 4 bytes IVAL(pdata,0) */
2459
2460                         if (data_count < 8) {
2461                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2462                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2463                                 return;
2464                         }
2465
2466                         sid_len = IVAL(pdata,4);
2467                         /* Ensure this is less than 1mb. */
2468                         if (sid_len > (1024*1024)) {
2469                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2470                                 return;
2471                         }
2472
2473                         if (data_count < 8+sid_len) {
2474                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2475                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2476                                 return;
2477                         }
2478
2479                         data_len = 4+40+sid_len;
2480
2481                         if (max_data_count < data_len) {
2482                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2483                                         max_data_count, data_len));
2484                                 param_len = 4;
2485                                 SIVAL(params,0,data_len);
2486                                 data_len = 0;
2487                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2488                                 break;
2489                         }
2490
2491                         if (!sid_parse(pdata+8,sid_len,&sid)) {
2492                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2493                                 return;
2494                         }
2495
2496                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2497                                 ZERO_STRUCT(qt);
2498                                 /*
2499                                  * we have to return zero's in all fields
2500                                  * instead of returning an error here
2501                                  * --metze
2502                                  */
2503                         }
2504
2505                         /* Realloc the size of parameters and data we will return */
2506                         param_len = 4;
2507                         params = nttrans_realloc(ppparams, param_len);
2508                         if(params == NULL) {
2509                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2510                                 return;
2511                         }
2512
2513                         pdata = nttrans_realloc(ppdata, data_len);
2514                         if(pdata == NULL) {
2515                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2516                                 return;
2517                         }
2518
2519                         entry = pdata;
2520
2521                         /* set params Size of returned Quota Data 4 bytes*/
2522                         SIVAL(params,0,data_len);
2523
2524                         /* nextoffset entry 4 bytes */
2525                         SIVAL(entry,0,0);
2526
2527                         /* then the len of the SID 4 bytes */
2528                         SIVAL(entry,4,sid_len);
2529
2530                         /* unknown data 8 bytes uint64_t */
2531                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2532
2533                         /* the used disk space 8 bytes uint64_t */
2534                         SBIG_UINT(entry,16,qt.usedspace);
2535
2536                         /* the soft quotas 8 bytes uint64_t */
2537                         SBIG_UINT(entry,24,qt.softlim);
2538
2539                         /* the hard quotas 8 bytes uint64_t */
2540                         SBIG_UINT(entry,32,qt.hardlim);
2541
2542                         /* and now the SID */
2543                         sid_linearize(entry+40, sid_len, &sid);
2544
2545                         break;
2546
2547                 default:
2548                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2549                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2550                         return;
2551                         break;
2552         }
2553
2554         send_nt_replies(conn, req, nt_status, params, param_len,
2555                         pdata, data_len);
2556 }
2557
2558 /****************************************************************************
2559  Reply to set user quota
2560 ****************************************************************************/
2561
2562 static void call_nt_transact_set_user_quota(connection_struct *conn,
2563                                             struct smb_request *req,
2564                                             uint16 **ppsetup,
2565                                             uint32 setup_count,
2566                                             char **ppparams,
2567                                             uint32 parameter_count,
2568                                             char **ppdata,
2569                                             uint32 data_count,
2570                                             uint32 max_data_count)
2571 {
2572         char *params = *ppparams;
2573         char *pdata = *ppdata;
2574         int data_len=0,param_len=0;
2575         SMB_NTQUOTA_STRUCT qt;
2576         size_t sid_len;
2577         DOM_SID sid;
2578         files_struct *fsp = NULL;
2579
2580         ZERO_STRUCT(qt);
2581
2582         /* access check */
2583         if (conn->server_info->utok.uid != 0) {
2584                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2585                          "[%s]\n", lp_servicename(SNUM(conn)),
2586                          conn->server_info->unix_name));
2587                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2588                 return;
2589         }
2590
2591         /*
2592          * Ensure minimum number of parameters sent.
2593          */
2594
2595         if (parameter_count < 2) {
2596                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2597                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2598                 return;
2599         }
2600
2601         /* maybe we can check the quota_fnum */
2602         fsp = file_fsp(req, SVAL(params,0));
2603         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2604                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2605                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2606                 return;
2607         }
2608
2609         if (data_count < 40) {
2610                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2611                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2612                 return;
2613         }
2614
2615         /* offset to next quota record.
2616          * 4 bytes IVAL(pdata,0)
2617          * unused here...
2618          */
2619
2620         /* sid len */
2621         sid_len = IVAL(pdata,4);
2622
2623         if (data_count < 40+sid_len) {
2624                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2625                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2626                 return;
2627         }
2628
2629         /* unknown 8 bytes in pdata
2630          * maybe its the change time in NTTIME
2631          */
2632
2633         /* the used space 8 bytes (uint64_t)*/
2634         qt.usedspace = (uint64_t)IVAL(pdata,16);
2635 #ifdef LARGE_SMB_OFF_T
2636         qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2637 #else /* LARGE_SMB_OFF_T */
2638         if ((IVAL(pdata,20) != 0)&&
2639                 ((qt.usedspace != 0xFFFFFFFF)||
2640                 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2641                 /* more than 32 bits? */
2642                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2643                 return;
2644         }
2645 #endif /* LARGE_SMB_OFF_T */
2646
2647         /* the soft quotas 8 bytes (uint64_t)*/
2648         qt.softlim = (uint64_t)IVAL(pdata,24);
2649 #ifdef LARGE_SMB_OFF_T
2650         qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2651 #else /* LARGE_SMB_OFF_T */
2652         if ((IVAL(pdata,28) != 0)&&
2653                 ((qt.softlim != 0xFFFFFFFF)||
2654                 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2655                 /* more than 32 bits? */
2656                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2657                 return;
2658         }
2659 #endif /* LARGE_SMB_OFF_T */
2660
2661         /* the hard quotas 8 bytes (uint64_t)*/
2662         qt.hardlim = (uint64_t)IVAL(pdata,32);
2663 #ifdef LARGE_SMB_OFF_T
2664         qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2665 #else /* LARGE_SMB_OFF_T */
2666         if ((IVAL(pdata,36) != 0)&&
2667                 ((qt.hardlim != 0xFFFFFFFF)||
2668                 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2669                 /* more than 32 bits? */
2670                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2671                 return;
2672         }
2673 #endif /* LARGE_SMB_OFF_T */
2674
2675         if (!sid_parse(pdata+40,sid_len,&sid)) {
2676                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2677                 return;
2678         }
2679
2680         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2681
2682         /* 44 unknown bytes left... */
2683
2684         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2685                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2686                 return;
2687         }
2688
2689         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2690                         pdata, data_len);
2691 }
2692 #endif /* HAVE_SYS_QUOTAS */
2693
2694 static void handle_nttrans(connection_struct *conn,
2695                            struct trans_state *state,
2696                            struct smb_request *req)
2697 {
2698         if (get_Protocol() >= PROTOCOL_NT1) {
2699                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2700                 SSVAL(req->inbuf,smb_flg2,req->flags2);
2701         }
2702
2703
2704         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2705
2706         /* Now we must call the relevant NT_TRANS function */
2707         switch(state->call) {
2708                 case NT_TRANSACT_CREATE:
2709                 {
2710                         START_PROFILE(NT_transact_create);
2711                         call_nt_transact_create(
2712                                 conn, req,
2713                                 &state->setup, state->setup_count,
2714                                 &state->param, state->total_param,
2715                                 &state->data, state->total_data,
2716                                 state->max_data_return);
2717                         END_PROFILE(NT_transact_create);
2718                         break;
2719                 }
2720
2721                 case NT_TRANSACT_IOCTL:
2722                 {
2723                         START_PROFILE(NT_transact_ioctl);
2724                         call_nt_transact_ioctl(
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_ioctl);
2731                         break;
2732                 }
2733
2734                 case NT_TRANSACT_SET_SECURITY_DESC:
2735                 {
2736                         START_PROFILE(NT_transact_set_security_desc);
2737                         call_nt_transact_set_security_desc(
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_security_desc);
2744                         break;
2745                 }
2746
2747                 case NT_TRANSACT_NOTIFY_CHANGE:
2748                 {
2749                         START_PROFILE(NT_transact_notify_change);
2750                         call_nt_transact_notify_change(
2751                                 conn, req,
2752                                 &state->setup, state->setup_count,
2753                                 &state->param, state->total_param,
2754                                 &state->data, state->total_data,
2755                                 state->max_data_return,
2756                                 state->max_param_return);
2757                         END_PROFILE(NT_transact_notify_change);
2758                         break;
2759                 }
2760
2761                 case NT_TRANSACT_RENAME:
2762                 {
2763                         START_PROFILE(NT_transact_rename);
2764                         call_nt_transact_rename(
2765                                 conn, req,
2766                                 &state->setup, state->setup_count,
2767                                 &state->param, state->total_param,
2768                                 &state->data, state->total_data,
2769                                 state->max_data_return);
2770                         END_PROFILE(NT_transact_rename);
2771                         break;
2772                 }
2773
2774                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2775                 {
2776                         START_PROFILE(NT_transact_query_security_desc);
2777                         call_nt_transact_query_security_desc(
2778                                 conn, req,
2779                                 &state->setup, state->setup_count,
2780                                 &state->param, state->total_param,
2781                                 &state->data, state->total_data,
2782                                 state->max_data_return);
2783                         END_PROFILE(NT_transact_query_security_desc);
2784                         break;
2785                 }
2786
2787 #ifdef HAVE_SYS_QUOTAS
2788                 case NT_TRANSACT_GET_USER_QUOTA:
2789                 {
2790                         START_PROFILE(NT_transact_get_user_quota);
2791                         call_nt_transact_get_user_quota(
2792                                 conn, req,
2793                                 &state->setup, state->setup_count,
2794                                 &state->param, state->total_param,
2795                                 &state->data, state->total_data,
2796                                 state->max_data_return);
2797                         END_PROFILE(NT_transact_get_user_quota);
2798                         break;
2799                 }
2800
2801                 case NT_TRANSACT_SET_USER_QUOTA:
2802                 {
2803                         START_PROFILE(NT_transact_set_user_quota);
2804                         call_nt_transact_set_user_quota(
2805                                 conn, req,
2806                                 &state->setup, state->setup_count,
2807                                 &state->param, state->total_param,
2808                                 &state->data, state->total_data,
2809                                 state->max_data_return);
2810                         END_PROFILE(NT_transact_set_user_quota);
2811                         break;
2812                 }
2813 #endif /* HAVE_SYS_QUOTAS */
2814
2815                 default:
2816                         /* Error in request */
2817                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2818                                  "nttrans call\n", state->call));
2819                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2820                         return;
2821         }
2822         return;
2823 }
2824
2825 /****************************************************************************
2826  Reply to a SMBNTtrans.
2827 ****************************************************************************/
2828
2829 void reply_nttrans(struct smb_request *req)
2830 {
2831         connection_struct *conn = req->conn;
2832         uint32_t pscnt;
2833         uint32_t psoff;
2834         uint32_t dscnt;
2835         uint32_t dsoff;
2836         uint16 function_code;
2837         NTSTATUS result;
2838         struct trans_state *state;
2839
2840         START_PROFILE(SMBnttrans);
2841
2842         if (req->wct < 19) {
2843                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2844                 END_PROFILE(SMBnttrans);
2845                 return;
2846         }
2847
2848         pscnt = IVAL(req->vwv+9, 1);
2849         psoff = IVAL(req->vwv+11, 1);
2850         dscnt = IVAL(req->vwv+13, 1);
2851         dsoff = IVAL(req->vwv+15, 1);
2852         function_code = SVAL(req->vwv+18, 0);
2853
2854         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2855                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2856                 END_PROFILE(SMBnttrans);
2857                 return;
2858         }
2859
2860         result = allow_new_trans(conn->pending_trans, req->mid);
2861         if (!NT_STATUS_IS_OK(result)) {
2862                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2863                 reply_nterror(req, result);
2864                 END_PROFILE(SMBnttrans);
2865                 return;
2866         }
2867
2868         if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2869                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2870                 END_PROFILE(SMBnttrans);
2871                 return;
2872         }
2873
2874         state->cmd = SMBnttrans;
2875
2876         state->mid = req->mid;
2877         state->vuid = req->vuid;
2878         state->total_data = IVAL(req->vwv+3, 1);
2879         state->data = NULL;
2880         state->total_param = IVAL(req->vwv+1, 1);
2881         state->param = NULL;
2882         state->max_data_return = IVAL(req->vwv+7, 1);
2883         state->max_param_return = IVAL(req->vwv+5, 1);
2884
2885         /* setup count is in *words* */
2886         state->setup_count = 2*CVAL(req->vwv+17, 1);
2887         state->setup = NULL;
2888         state->call = function_code;
2889
2890         DEBUG(10, ("num_setup=%u, "
2891                    "param_total=%u, this_param=%u, max_param=%u, "
2892                    "data_total=%u, this_data=%u, max_data=%u, "
2893                    "param_offset=%u, data_offset=%u\n",
2894                    (unsigned)state->setup_count,
2895                    (unsigned)state->total_param, (unsigned)pscnt,
2896                    (unsigned)state->max_param_return,
2897                    (unsigned)state->total_data, (unsigned)dscnt,
2898                    (unsigned)state->max_data_return,
2899                    (unsigned)psoff, (unsigned)dsoff));
2900
2901         /*
2902          * All nttrans messages we handle have smb_wct == 19 +
2903          * state->setup_count.  Ensure this is so as a sanity check.
2904          */
2905
2906         if(req->wct != 19 + (state->setup_count/2)) {
2907                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2908                          req->wct, 19 + (state->setup_count/2)));
2909                 goto bad_param;
2910         }
2911
2912         /* Don't allow more than 128mb for each value. */
2913         if ((state->total_data > (1024*1024*128)) ||
2914             (state->total_param > (1024*1024*128))) {
2915                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2916                 END_PROFILE(SMBnttrans);
2917                 return;
2918         }
2919
2920         if ((dscnt > state->total_data) || (pscnt > state->total_param))
2921                 goto bad_param;
2922
2923         if (state->total_data)  {
2924
2925                 if (trans_oob(state->total_data, 0, dscnt)
2926                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2927                         goto bad_param;
2928                 }
2929
2930                 /* Can't use talloc here, the core routines do realloc on the
2931                  * params and data. */
2932                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2933                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
2934                                  "bytes !\n", (unsigned int)state->total_data));
2935                         TALLOC_FREE(state);
2936                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2937                         END_PROFILE(SMBnttrans);
2938                         return;
2939                 }
2940
2941                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2942         }
2943
2944         if (state->total_param) {
2945
2946                 if (trans_oob(state->total_param, 0, pscnt)
2947                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2948                         goto bad_param;
2949                 }
2950
2951                 /* Can't use talloc here, the core routines do realloc on the
2952                  * params and data. */
2953                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2954                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
2955                                  "bytes !\n", (unsigned int)state->total_param));
2956                         SAFE_FREE(state->data);
2957                         TALLOC_FREE(state);
2958                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2959                         END_PROFILE(SMBnttrans);
2960                         return;
2961                 }
2962
2963                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2964         }
2965
2966         state->received_data  = dscnt;
2967         state->received_param = pscnt;
2968
2969         if(state->setup_count > 0) {
2970                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2971                           state->setup_count));
2972
2973                 /*
2974                  * No overflow possible here, state->setup_count is an
2975                  * unsigned int, being filled by a single byte from
2976                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
2977                  * below is not necessary, it's here to clarify things. The
2978                  * validity of req->vwv and req->wct has been checked in
2979                  * init_smb_request already.
2980                  */
2981                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2982                         goto bad_param;
2983                 }
2984
2985                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2986                 if (state->setup == NULL) {
2987                         DEBUG(0,("reply_nttrans : Out of memory\n"));
2988                         SAFE_FREE(state->data);
2989                         SAFE_FREE(state->param);
2990                         TALLOC_FREE(state);
2991                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2992                         END_PROFILE(SMBnttrans);
2993                         return;
2994                 }
2995
2996                 memcpy(state->setup, req->vwv+19, state->setup_count);
2997                 dump_data(10, (uint8 *)state->setup, state->setup_count);
2998         }
2999
3000         if ((state->received_data == state->total_data) &&
3001             (state->received_param == state->total_param)) {
3002                 handle_nttrans(conn, state, req);
3003                 SAFE_FREE(state->param);
3004                 SAFE_FREE(state->data);
3005                 TALLOC_FREE(state);
3006                 END_PROFILE(SMBnttrans);
3007                 return;
3008         }
3009
3010         DLIST_ADD(conn->pending_trans, state);
3011
3012         /* We need to send an interim response then receive the rest
3013            of the parameter/data bytes */
3014         reply_outbuf(req, 0, 0);
3015         show_msg((char *)req->outbuf);
3016         END_PROFILE(SMBnttrans);
3017         return;
3018
3019   bad_param:
3020
3021         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3022         SAFE_FREE(state->data);
3023         SAFE_FREE(state->param);
3024         TALLOC_FREE(state);
3025         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3026         END_PROFILE(SMBnttrans);
3027         return;
3028 }
3029
3030 /****************************************************************************
3031  Reply to a SMBnttranss
3032  ****************************************************************************/
3033
3034 void reply_nttranss(struct smb_request *req)
3035 {
3036         connection_struct *conn = req->conn;
3037         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3038         struct trans_state *state;
3039
3040         START_PROFILE(SMBnttranss);
3041
3042         show_msg((char *)req->inbuf);
3043
3044         if (req->wct < 18) {
3045                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3046                 END_PROFILE(SMBnttranss);
3047                 return;
3048         }
3049
3050         for (state = conn->pending_trans; state != NULL;
3051              state = state->next) {
3052                 if (state->mid == req->mid) {
3053                         break;
3054                 }
3055         }
3056
3057         if ((state == NULL) || (state->cmd != SMBnttrans)) {
3058                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3059                 END_PROFILE(SMBnttranss);
3060                 return;
3061         }
3062
3063         /* Revise state->total_param and state->total_data in case they have
3064            changed downwards */
3065         if (IVAL(req->vwv+1, 1) < state->total_param) {
3066                 state->total_param = IVAL(req->vwv+1, 1);
3067         }
3068         if (IVAL(req->vwv+3, 1) < state->total_data) {
3069                 state->total_data = IVAL(req->vwv+3, 1);
3070         }
3071
3072         pcnt = IVAL(req->vwv+5, 1);
3073         poff = IVAL(req->vwv+7, 1);
3074         pdisp = IVAL(req->vwv+9, 1);
3075
3076         dcnt = IVAL(req->vwv+11, 1);
3077         doff = IVAL(req->vwv+13, 1);
3078         ddisp = IVAL(req->vwv+15, 1);
3079
3080         state->received_param += pcnt;
3081         state->received_data += dcnt;
3082
3083         if ((state->received_data > state->total_data) ||
3084             (state->received_param > state->total_param))
3085                 goto bad_param;
3086
3087         if (pcnt) {
3088                 if (trans_oob(state->total_param, pdisp, pcnt)
3089                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3090                         goto bad_param;
3091                 }
3092                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3093         }
3094
3095         if (dcnt) {
3096                 if (trans_oob(state->total_data, ddisp, dcnt)
3097                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3098                         goto bad_param;
3099                 }
3100                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3101         }
3102
3103         if ((state->received_param < state->total_param) ||
3104             (state->received_data < state->total_data)) {
3105                 END_PROFILE(SMBnttranss);
3106                 return;
3107         }
3108
3109         handle_nttrans(conn, state, req);
3110
3111         DLIST_REMOVE(conn->pending_trans, state);
3112         SAFE_FREE(state->data);
3113         SAFE_FREE(state->param);
3114         TALLOC_FREE(state);
3115         END_PROFILE(SMBnttranss);
3116         return;
3117
3118   bad_param:
3119
3120         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3121         DLIST_REMOVE(conn->pending_trans, state);
3122         SAFE_FREE(state->data);
3123         SAFE_FREE(state->param);
3124         TALLOC_FREE(state);
3125         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3126         END_PROFILE(SMBnttranss);
3127         return;
3128 }