source3/smbd/nttrans.c

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