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 #include "lib/util_ea.h"
  33
  34 extern const struct generic_mapping file_generic_mapping;
  35
  36 static char *nttrans_realloc(char **ptr, size_t size)
  37 {
  38         if (ptr==NULL) {
  39                 smb_panic("nttrans_realloc() called with NULL ptr");
  40         }
  41
  42         *ptr = (char *)SMB_REALLOC(*ptr, size);
  43         if(*ptr == NULL) {
  44                 return NULL;
  45         }
  46         memset(*ptr,'\0',size);
  47         return *ptr;
  48 }
  49
  50 /****************************************************************************
  51  Send the required number of replies back.
  52  We assume all fields other than the data fields are
  53  set correctly for the type of call.
  54  HACK ! Always assumes smb_setup field is zero.
  55 ****************************************************************************/
  56
  57 static void send_nt_replies(connection_struct *conn,
  58                             struct smb_request *req, NTSTATUS nt_error,
  59                             char *params, int paramsize,
  60                             char *pdata, int datasize)
  61 {
  62         int data_to_send = datasize;
  63         int params_to_send = paramsize;
  64         int useable_space;
  65         char *pp = params;
  66         char *pd = pdata;
  67         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
  68         int alignment_offset = 1;
  69         int data_alignment_offset = 0;
  70         struct smbXsrv_connection *xconn = req->xconn;
  71         int max_send = xconn->smb1.sessions.max_send;
  72
  73         /*
  74          * If there genuinely are no parameters or data to send just send
  75          * the empty packet.
  76          */
  77
  78         if(params_to_send == 0 && data_to_send == 0) {
  79                 reply_outbuf(req, 18, 0);
  80                 if (NT_STATUS_V(nt_error)) {
  81                         error_packet_set((char *)req->outbuf,
  82                                          0, 0, nt_error,
  83                                          __LINE__,__FILE__);
  84                 }
  85                 show_msg((char *)req->outbuf);
  86                 if (!srv_send_smb(xconn,
  87                                 (char *)req->outbuf,
  88                                 true, req->seqnum+1,
  89                                 IS_CONN_ENCRYPTED(conn),
  90                                 &req->pcd)) {
  91                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
  92                 }
  93                 TALLOC_FREE(req->outbuf);
  94                 return;
  95         }
  96
  97         /*
  98          * When sending params and data ensure that both are nicely aligned.
  99          * Only do this alignment when there is also data to send - else
 100          * can cause NT redirector problems.
 101          */
 102
 103         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
 104                 data_alignment_offset = 4 - (params_to_send % 4);
 105         }
 106
 107         /*
 108          * Space is bufsize minus Netbios over TCP header minus SMB header.
 109          * The alignment_offset is to align the param bytes on a four byte
 110          * boundary (2 bytes for data len, one byte pad).
 111          * NT needs this to work correctly.
 112          */
 113
 114         useable_space = max_send - (smb_size
 115                                     + 2 * 18 /* wct */
 116                                     + alignment_offset
 117                                     + data_alignment_offset);
 118
 119         if (useable_space < 0) {
 120                 char *msg = talloc_asprintf(
 121                         talloc_tos(),
 122                         "send_nt_replies failed sanity useable_space = %d!!!",
 123                         useable_space);
 124                 DEBUG(0, ("%s\n", msg));
 125                 exit_server_cleanly(msg);
 126         }
 127
 128         while (params_to_send || data_to_send) {
 129
 130                 /*
 131                  * Calculate whether we will totally or partially fill this packet.
 132                  */
 133
 134                 total_sent_thistime = params_to_send + data_to_send;
 135
 136                 /*
 137                  * We can never send more than useable_space.
 138                  */
 139
 140                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
 141
 142                 reply_outbuf(req, 18,
 143                              total_sent_thistime + alignment_offset
 144                              + data_alignment_offset);
 145
 146                 /*
 147                  * Set total params and data to be sent.
 148                  */
 149
 150                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
 151                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
 152
 153                 /*
 154                  * Calculate how many parameters and data we can fit into
 155                  * this packet. Parameters get precedence.
 156                  */
 157
 158                 params_sent_thistime = MIN(params_to_send,useable_space);
 159                 data_sent_thistime = useable_space - params_sent_thistime;
 160                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
 161
 162                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
 163                       params_sent_thistime);
 164
 165                 if(params_sent_thistime == 0) {
 166                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
 167                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
 168                 } else {
 169                         /*
 170                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
 171                          * parameter bytes, however the first 4 bytes of outbuf are
 172                          * the Netbios over TCP header. Thus use smb_base() to subtract
 173                          * them from the calculation.
 174                          */
 175
 176                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
 177                               ((smb_buf(req->outbuf)+alignment_offset)
 178                                - smb_base(req->outbuf)));
 179                         /*
 180                          * Absolute displacement of param bytes sent in this packet.
 181                          */
 182
 183                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
 184                               pp - params);
 185                 }
 186
 187                 /*
 188                  * Deal with the data portion.
 189                  */
 190
 191                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
 192
 193                 if(data_sent_thistime == 0) {
 194                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
 195                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
 196                 } else {
 197                         /*
 198                          * The offset of the data bytes is the offset of the
 199                          * parameter bytes plus the number of parameters being sent this time.
 200                          */
 201
 202                         SIVAL(req->outbuf, smb_ntr_DataOffset,
 203                               ((smb_buf(req->outbuf)+alignment_offset) -
 204                                smb_base(req->outbuf))
 205                               + params_sent_thistime + data_alignment_offset);
 206                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
 207                 }
 208
 209                 /*
 210                  * Copy the param bytes into the packet.
 211                  */
 212
 213                 if(params_sent_thistime) {
 214                         if (alignment_offset != 0) {
 215                                 memset(smb_buf(req->outbuf), 0,
 216                                        alignment_offset);
 217                         }
 218                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
 219                                params_sent_thistime);
 220                 }
 221
 222                 /*
 223                  * Copy in the data bytes
 224                  */
 225
 226                 if(data_sent_thistime) {
 227                         if (data_alignment_offset != 0) {
 228                                 memset((smb_buf(req->outbuf)+alignment_offset+
 229                                         params_sent_thistime), 0,
 230                                        data_alignment_offset);
 231                         }
 232                         memcpy(smb_buf(req->outbuf)+alignment_offset
 233                                +params_sent_thistime+data_alignment_offset,
 234                                pd,data_sent_thistime);
 235                 }
 236
 237                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
 238                         params_sent_thistime, data_sent_thistime, useable_space));
 239                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
 240                         params_to_send, data_to_send, paramsize, datasize));
 241
 242                 if (NT_STATUS_V(nt_error)) {
 243                         error_packet_set((char *)req->outbuf,
 244                                          0, 0, nt_error,
 245                                          __LINE__,__FILE__);
 246                 }
 247
 248                 /* Send the packet */
 249                 show_msg((char *)req->outbuf);
 250                 if (!srv_send_smb(xconn,
 251                                 (char *)req->outbuf,
 252                                 true, req->seqnum+1,
 253                                 IS_CONN_ENCRYPTED(conn),
 254                                 &req->pcd)) {
 255                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
 256                 }
 257
 258                 TALLOC_FREE(req->outbuf);
 259
 260                 pp += params_sent_thistime;
 261                 pd += data_sent_thistime;
 262
 263                 params_to_send -= params_sent_thistime;
 264                 data_to_send -= data_sent_thistime;
 265
 266                 /*
 267                  * Sanity check
 268                  */
 269
 270                 if(params_to_send < 0 || data_to_send < 0) {
 271                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
 272                                 params_to_send, data_to_send));
 273                         exit_server_cleanly("send_nt_replies: internal error");
 274                 }
 275         }
 276 }
 277
 278 /****************************************************************************
 279  Reply to an NT create and X call on a pipe
 280 ****************************************************************************/
 281
 282 static void nt_open_pipe(char *fname, connection_struct *conn,
 283                          struct smb_request *req, uint16_t *ppnum)
 284 {
 285         files_struct *fsp;
 286         NTSTATUS status;
 287
 288         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
 289
 290         /* Strip \\ off the name if present. */
 291         while (fname[0] == '\\') {
 292                 fname++;
 293         }
 294
 295         status = open_np_file(req, fname, &fsp);
 296         if (!NT_STATUS_IS_OK(status)) {
 297                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 298                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 299                                         ERRDOS, ERRbadpipe);
 300                         return;
 301                 }
 302                 reply_nterror(req, status);
 303                 return;
 304         }
 305
 306         *ppnum = fsp->fnum;
 307         return;
 308 }
 309
 310 /****************************************************************************
 311  Reply to an NT create and X call for pipes.
 312 ****************************************************************************/
 313
 314 static void do_ntcreate_pipe_open(connection_struct *conn,
 315                                   struct smb_request *req)
 316 {
 317         char *fname = NULL;
 318         uint16_t pnum = FNUM_FIELD_INVALID;
 319         char *p = NULL;
 320         uint32_t flags = IVAL(req->vwv+3, 1);
 321         TALLOC_CTX *ctx = talloc_tos();
 322
 323         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
 324
 325         if (!fname) {
 326                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 327                                 ERRDOS, ERRbadpipe);
 328                 return;
 329         }
 330         nt_open_pipe(fname, conn, req, &pnum);
 331
 332         if (req->outbuf) {
 333                 /* error reply */
 334                 return;
 335         }
 336
 337         /*
 338          * Deal with pipe return.
 339          */
 340
 341         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 342                 /* This is very strange. We
 343                  * return 50 words, but only set
 344                  * the wcnt to 42 ? It's definitely
 345                  * what happens on the wire....
 346                  */
 347                 reply_outbuf(req, 50, 0);
 348                 SCVAL(req->outbuf,smb_wct,42);
 349         } else {
 350                 reply_outbuf(req, 34, 0);
 351         }
 352
 353         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 354         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 355
 356         p = (char *)req->outbuf + smb_vwv2;
 357         p++;
 358         SSVAL(p,0,pnum);
 359         p += 2;
 360         SIVAL(p,0,FILE_WAS_OPENED);
 361         p += 4;
 362         p += 32;
 363         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 364         p += 20;
 365         /* File type. */
 366         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 367         /* Device state. */
 368         SSVAL(p,2, 0x5FF); /* ? */
 369         p += 4;
 370
 371         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 372                 p += 25;
 373                 SIVAL(p,0,FILE_GENERIC_ALL);
 374                 /*
 375                  * For pipes W2K3 seems to return
 376                  * 0x12019B next.
 377                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 378                  */
 379                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 380         }
 381
 382         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
 383 }
 384
 385 struct case_semantics_state {
 386         connection_struct *conn;
 387         bool case_sensitive;
 388         bool case_preserve;
 389         bool short_case_preserve;
 390 };
 391
 392 /****************************************************************************
 393  Restore case semantics.
 394 ****************************************************************************/
 395
 396 static int restore_case_semantics(struct case_semantics_state *state)
 397 {
 398         state->conn->case_sensitive = state->case_sensitive;
 399         state->conn->case_preserve = state->case_preserve;
 400         state->conn->short_case_preserve = state->short_case_preserve;
 401         return 0;
 402 }
 403
 404 /****************************************************************************
 405  Save case semantics.
 406 ****************************************************************************/
 407
 408 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
 409                                                 connection_struct *conn)
 410 {
 411         struct case_semantics_state *result;
 412
 413         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
 414                 return NULL;
 415         }
 416
 417         result->conn = conn;
 418         result->case_sensitive = conn->case_sensitive;
 419         result->case_preserve = conn->case_preserve;
 420         result->short_case_preserve = conn->short_case_preserve;
 421
 422         /* Set to POSIX. */
 423         conn->case_sensitive = True;
 424         conn->case_preserve = True;
 425         conn->short_case_preserve = True;
 426
 427         talloc_set_destructor(result, restore_case_semantics);
 428
 429         return result;
 430 }
 431
 432 /****************************************************************************
 433  Reply to an NT create and X call.
 434 ****************************************************************************/
 435
 436 void reply_ntcreate_and_X(struct smb_request *req)
 437 {
 438         connection_struct *conn = req->conn;
 439         struct smb_filename *smb_fname = NULL;
 440         char *fname = NULL;
 441         uint32_t flags;
 442         uint32_t access_mask;
 443         uint32_t file_attributes;
 444         uint32_t share_access;
 445         uint32_t create_disposition;
 446         uint32_t create_options;
 447         uint16_t root_dir_fid;
 448         uint64_t allocation_size;
 449         /* Breakout the oplock request bits so we can set the
 450            reply bits separately. */
 451         uint32_t fattr=0;
 452         off_t file_len = 0;
 453         int info = 0;
 454         files_struct *fsp = NULL;
 455         char *p = NULL;
 456         struct timespec create_timespec;
 457         struct timespec c_timespec;
 458         struct timespec a_timespec;
 459         struct timespec m_timespec;
 460         NTSTATUS status;
 461         int oplock_request;
 462         uint8_t oplock_granted = NO_OPLOCK_RETURN;
 463         struct case_semantics_state *case_state = NULL;
 464         uint32_t ucf_flags = UCF_PREP_CREATEFILE |
 465                         (req->posix_pathnames ? UCF_POSIX_PATHNAMES : 0);
 466         TALLOC_CTX *ctx = talloc_tos();
 467
 468         START_PROFILE(SMBntcreateX);
 469
 470         if (req->wct < 24) {
 471                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 472                 goto out;
 473         }
 474
 475         flags = IVAL(req->vwv+3, 1);
 476         access_mask = IVAL(req->vwv+7, 1);
 477         file_attributes = IVAL(req->vwv+13, 1);
 478         share_access = IVAL(req->vwv+15, 1);
 479         create_disposition = IVAL(req->vwv+17, 1);
 480         create_options = IVAL(req->vwv+19, 1);
 481         root_dir_fid = (uint16_t)IVAL(req->vwv+5, 1);
 482
 483         allocation_size = BVAL(req->vwv+9, 1);
 484
 485         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
 486                             STR_TERMINATE, &status);
 487
 488         if (!NT_STATUS_IS_OK(status)) {
 489                 reply_nterror(req, status);
 490                 goto out;
 491         }
 492
 493         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
 494                   "file_attributes = 0x%x, share_access = 0x%x, "
 495                   "create_disposition = 0x%x create_options = 0x%x "
 496                   "root_dir_fid = 0x%x, fname = %s\n",
 497                         (unsigned int)flags,
 498                         (unsigned int)access_mask,
 499                         (unsigned int)file_attributes,
 500                         (unsigned int)share_access,
 501                         (unsigned int)create_disposition,
 502                         (unsigned int)create_options,
 503                         (unsigned int)root_dir_fid,
 504                         fname));
 505
 506         /*
 507          * we need to remove ignored bits when they come directly from the client
 508          * because we reuse some of them for internal stuff
 509          */
 510         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
 511
 512         /*
 513          * If it's an IPC, use the pipe handler.
 514          */
 515
 516         if (IS_IPC(conn)) {
 517                 if (lp_nt_pipe_support()) {
 518                         do_ntcreate_pipe_open(conn, req);
 519                         goto out;
 520                 }
 521                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 522                 goto out;
 523         }
 524
 525         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
 526         if (oplock_request) {
 527                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
 528                         ? BATCH_OPLOCK : 0;
 529         }
 530
 531         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
 532                 case_state = set_posix_case_semantics(ctx, conn);
 533                 if (!case_state) {
 534                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 535                         goto out;
 536                 }
 537         }
 538
 539         status = filename_convert(ctx,
 540                                 conn,
 541                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 542                                 fname,
 543                                 ucf_flags,
 544                                 NULL,
 545                                 &smb_fname);
 546
 547         TALLOC_FREE(case_state);
 548
 549         if (!NT_STATUS_IS_OK(status)) {
 550                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 551                         reply_botherror(req,
 552                                 NT_STATUS_PATH_NOT_COVERED,
 553                                 ERRSRV, ERRbadpath);
 554                         goto out;
 555                 }
 556                 reply_nterror(req, status);
 557                 goto out;
 558         }
 559
 560         /*
 561          * Bug #6898 - clients using Windows opens should
 562          * never be able to set this attribute into the
 563          * VFS.
 564          */
 565         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 566
 567         status = SMB_VFS_CREATE_FILE(
 568                 conn,                                   /* conn */
 569                 req,                                    /* req */
 570                 root_dir_fid,                           /* root_dir_fid */
 571                 smb_fname,                              /* fname */
 572                 access_mask,                            /* access_mask */
 573                 share_access,                           /* share_access */
 574                 create_disposition,                     /* create_disposition*/
 575                 create_options,                         /* create_options */
 576                 file_attributes,                        /* file_attributes */
 577                 oplock_request,                         /* oplock_request */
 578                 NULL,                                   /* lease */
 579                 allocation_size,                        /* allocation_size */
 580                 0,                                      /* private_flags */
 581                 NULL,                                   /* sd */
 582                 NULL,                                   /* ea_list */
 583                 &fsp,                                   /* result */
 584                 &info,                                  /* pinfo */
 585                 NULL, NULL);                            /* create context */
 586
 587         if (!NT_STATUS_IS_OK(status)) {
 588                 if (open_was_deferred(req->xconn, req->mid)) {
 589                         /* We have re-scheduled this call, no error. */
 590                         goto out;
 591                 }
 592                 reply_openerror(req, status);
 593                 goto out;
 594         }
 595
 596         /* Ensure we're pointing at the correct stat struct. */
 597         TALLOC_FREE(smb_fname);
 598         smb_fname = fsp->fsp_name;
 599
 600         /*
 601          * If the caller set the extended oplock request bit
 602          * and we granted one (by whatever means) - set the
 603          * correct bit for extended oplock reply.
 604          */
 605
 606         if (oplock_request &&
 607             (lp_fake_oplocks(SNUM(conn))
 608              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
 609
 610                 /*
 611                  * Exclusive oplock granted
 612                  */
 613
 614                 if (flags & REQUEST_BATCH_OPLOCK) {
 615                         oplock_granted = BATCH_OPLOCK_RETURN;
 616                 } else {
 617                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
 618                 }
 619         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
 620                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
 621         } else {
 622                 oplock_granted = NO_OPLOCK_RETURN;
 623         }
 624
 625         file_len = smb_fname->st.st_ex_size;
 626
 627         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 628                 /* This is very strange. We
 629                  * return 50 words, but only set
 630                  * the wcnt to 42 ? It's definitely
 631                  * what happens on the wire....
 632                  */
 633                 reply_outbuf(req, 50, 0);
 634                 SCVAL(req->outbuf,smb_wct,42);
 635         } else {
 636                 reply_outbuf(req, 34, 0);
 637         }
 638
 639         SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
 640         SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 641
 642         p = (char *)req->outbuf + smb_vwv2;
 643
 644         SCVAL(p, 0, oplock_granted);
 645
 646         p++;
 647         SSVAL(p,0,fsp->fnum);
 648         p += 2;
 649         if ((create_disposition == FILE_SUPERSEDE)
 650             && (info == FILE_WAS_OVERWRITTEN)) {
 651                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
 652         } else {
 653                 SIVAL(p,0,info);
 654         }
 655         p += 4;
 656
 657         fattr = dos_mode(conn, smb_fname);
 658         if (fattr == 0) {
 659                 fattr = FILE_ATTRIBUTE_NORMAL;
 660         }
 661
 662         /* Create time. */
 663         create_timespec = get_create_timespec(conn, fsp, smb_fname);
 664         a_timespec = smb_fname->st.st_ex_atime;
 665         m_timespec = smb_fname->st.st_ex_mtime;
 666         c_timespec = get_change_timespec(conn, fsp, smb_fname);
 667
 668         if (lp_dos_filetime_resolution(SNUM(conn))) {
 669                 dos_filetime_timespec(&create_timespec);
 670                 dos_filetime_timespec(&a_timespec);
 671                 dos_filetime_timespec(&m_timespec);
 672                 dos_filetime_timespec(&c_timespec);
 673         }
 674
 675         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
 676         p += 8;
 677         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
 678         p += 8;
 679         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
 680         p += 8;
 681         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
 682         p += 8;
 683         SIVAL(p,0,fattr); /* File Attributes. */
 684         p += 4;
 685         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
 686         p += 8;
 687         SOFF_T(p,0,file_len);
 688         p += 8;
 689         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 690                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
 691                 size_t num_names = 0;
 692                 unsigned int num_streams = 0;
 693                 struct stream_struct *streams = NULL;
 694
 695                 /* Do we have any EA's ? */
 696                 status = get_ea_names_from_file(ctx, conn, fsp,
 697                                 smb_fname, NULL, &num_names);
 698                 if (NT_STATUS_IS_OK(status) && num_names) {
 699                         file_status &= ~NO_EAS;
 700                 }
 701                 status = vfs_streaminfo(conn, NULL, smb_fname, ctx,
 702                         &num_streams, &streams);
 703                 /* There is always one stream, ::$DATA. */
 704                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
 705                         file_status &= ~NO_SUBSTREAMS;
 706                 }
 707                 TALLOC_FREE(streams);
 708                 SSVAL(p,2,file_status);
 709         }
 710         p += 4;
 711         SCVAL(p,0,fsp->is_directory ? 1 : 0);
 712
 713         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 714                 uint32_t perms = 0;
 715                 p += 25;
 716                 if (fsp->is_directory ||
 717                     fsp->can_write ||
 718                     can_write_to_file(conn, smb_fname)) {
 719                         perms = FILE_GENERIC_ALL;
 720                 } else {
 721                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
 722                 }
 723                 SIVAL(p,0,perms);
 724         }
 725
 726         DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
 727                 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
 728
 729  out:
 730         END_PROFILE(SMBntcreateX);
 731         return;
 732 }
 733
 734 /****************************************************************************
 735  Reply to a NT_TRANSACT_CREATE call to open a pipe.
 736 ****************************************************************************/
 737
 738 static void do_nt_transact_create_pipe(connection_struct *conn,
 739                                        struct smb_request *req,
 740                                        uint16_t **ppsetup, uint32_t setup_count,
 741                                        char **ppparams, uint32_t parameter_count,
 742                                        char **ppdata, uint32_t data_count)
 743 {
 744         char *fname = NULL;
 745         char *params = *ppparams;
 746         uint16_t pnum = FNUM_FIELD_INVALID;
 747         char *p = NULL;
 748         NTSTATUS status;
 749         size_t param_len;
 750         uint32_t flags;
 751         TALLOC_CTX *ctx = talloc_tos();
 752
 753         /*
 754          * Ensure minimum number of parameters sent.
 755          */
 756
 757         if(parameter_count < 54) {
 758                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
 759                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 760                 return;
 761         }
 762
 763         flags = IVAL(params,0);
 764
 765         if (req->posix_pathnames) {
 766                 srvstr_get_path_posix(ctx,
 767                         params,
 768                         req->flags2,
 769                         &fname,
 770                         params+53,
 771                         parameter_count-53,
 772                         STR_TERMINATE,
 773                         &status);
 774         } else {
 775                 srvstr_get_path(ctx,
 776                         params,
 777                         req->flags2,
 778                         &fname,
 779                         params+53,
 780                         parameter_count-53,
 781                         STR_TERMINATE,
 782                         &status);
 783         }
 784         if (!NT_STATUS_IS_OK(status)) {
 785                 reply_nterror(req, status);
 786                 return;
 787         }
 788
 789         nt_open_pipe(fname, conn, req, &pnum);
 790
 791         if (req->outbuf) {
 792                 /* Error return */
 793                 return;
 794         }
 795
 796         /* Realloc the size of parameters and data we will return */
 797         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 798                 /* Extended response is 32 more byyes. */
 799                 param_len = 101;
 800         } else {
 801                 param_len = 69;
 802         }
 803         params = nttrans_realloc(ppparams, param_len);
 804         if(params == NULL) {
 805                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 806                 return;
 807         }
 808
 809         p = params;
 810         SCVAL(p,0,NO_OPLOCK_RETURN);
 811
 812         p += 2;
 813         SSVAL(p,0,pnum);
 814         p += 2;
 815         SIVAL(p,0,FILE_WAS_OPENED);
 816         p += 8;
 817
 818         p += 32;
 819         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
 820         p += 20;
 821         /* File type. */
 822         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
 823         /* Device state. */
 824         SSVAL(p,2, 0x5FF); /* ? */
 825         p += 4;
 826
 827         if (flags & EXTENDED_RESPONSE_REQUIRED) {
 828                 p += 25;
 829                 SIVAL(p,0,FILE_GENERIC_ALL);
 830                 /*
 831                  * For pipes W2K3 seems to return
 832                  * 0x12019B next.
 833                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
 834                  */
 835                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
 836         }
 837
 838         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
 839
 840         /* Send the required number of replies */
 841         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
 842
 843         return;
 844 }
 845
 846 /*********************************************************************
 847  Windows seems to do canonicalization of inheritance bits. Do the
 848  same.
 849 *********************************************************************/
 850
 851 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
 852 {
 853         bool set_auto_inherited = false;
 854
 855         /*
 856          * We need to filter out the
 857          * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
 858          * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
 859          * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
 860          * when an ACE is inherited. Otherwise we zero these bits out.
 861          * See:
 862          *
 863          * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
 864          *
 865          * for details.
 866          */
 867
 868         if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
 869                         == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
 870                 set_auto_inherited = true;
 871         }
 872
 873         psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
 874         if (set_auto_inherited) {
 875                 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
 876         }
 877 }
 878
 879 /****************************************************************************
 880  Internal fn to set security descriptors.
 881 ****************************************************************************/
 882
 883 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
 884                        uint32_t security_info_sent)
 885 {
 886         NTSTATUS status;
 887
 888         if (!CAN_WRITE(fsp->conn)) {
 889                 return NT_STATUS_ACCESS_DENIED;
 890         }
 891
 892         if (!lp_nt_acl_support(SNUM(fsp->conn))) {
 893                 return NT_STATUS_OK;
 894         }
 895
 896         if (S_ISLNK(fsp->fsp_name->st.st_ex_mode)) {
 897                 DEBUG(10, ("ACL set on symlink %s denied.\n",
 898                         fsp_str_dbg(fsp)));
 899                 return NT_STATUS_ACCESS_DENIED;
 900         }
 901
 902         if (psd->owner_sid == NULL) {
 903                 security_info_sent &= ~SECINFO_OWNER;
 904         }
 905         if (psd->group_sid == NULL) {
 906                 security_info_sent &= ~SECINFO_GROUP;
 907         }
 908
 909         /* Ensure we have at least one thing set. */
 910         if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
 911                 /* Just like W2K3 */
 912                 return NT_STATUS_OK;
 913         }
 914
 915         /* Ensure we have the rights to do this. */
 916         if (security_info_sent & SECINFO_OWNER) {
 917                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 918                         return NT_STATUS_ACCESS_DENIED;
 919                 }
 920         }
 921
 922         if (security_info_sent & SECINFO_GROUP) {
 923                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
 924                         return NT_STATUS_ACCESS_DENIED;
 925                 }
 926         }
 927
 928         if (security_info_sent & SECINFO_DACL) {
 929                 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
 930                         return NT_STATUS_ACCESS_DENIED;
 931                 }
 932                 /* Convert all the generic bits. */
 933                 if (psd->dacl) {
 934                         security_acl_map_generic(psd->dacl, &file_generic_mapping);
 935                 }
 936         }
 937
 938         if (security_info_sent & SECINFO_SACL) {
 939                 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
 940                         return NT_STATUS_ACCESS_DENIED;
 941                 }
 942                 /* Convert all the generic bits. */
 943                 if (psd->sacl) {
 944                         security_acl_map_generic(psd->sacl, &file_generic_mapping);
 945                 }
 946         }
 947
 948         canonicalize_inheritance_bits(psd);
 949
 950         if (DEBUGLEVEL >= 10) {
 951                 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
 952                 NDR_PRINT_DEBUG(security_descriptor, psd);
 953         }
 954
 955         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
 956
 957         TALLOC_FREE(psd);
 958
 959         return status;
 960 }
 961
 962 /****************************************************************************
 963  Internal fn to set security descriptors from a data blob.
 964 ****************************************************************************/
 965
 966 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
 967                        uint32_t security_info_sent)
 968 {
 969         struct security_descriptor *psd = NULL;
 970         NTSTATUS status;
 971
 972         if (sd_len == 0) {
 973                 return NT_STATUS_INVALID_PARAMETER;
 974         }
 975
 976         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
 977
 978         if (!NT_STATUS_IS_OK(status)) {
 979                 return status;
 980         }
 981
 982         return set_sd(fsp, psd, security_info_sent);
 983 }
 984
 985 /****************************************************************************
 986  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
 987 ****************************************************************************/
 988
 989 static void call_nt_transact_create(connection_struct *conn,
 990                                     struct smb_request *req,
 991                                     uint16_t **ppsetup, uint32_t setup_count,
 992                                     char **ppparams, uint32_t parameter_count,
 993                                     char **ppdata, uint32_t data_count,
 994                                     uint32_t max_data_count)
 995 {
 996         struct smb_filename *smb_fname = NULL;
 997         char *fname = NULL;
 998         char *params = *ppparams;
 999         char *data = *ppdata;
1000         /* Breakout the oplock request bits so we can set the reply bits separately. */
1001         uint32_t fattr=0;
1002         off_t file_len = 0;
1003         int info = 0;
1004         files_struct *fsp = NULL;
1005         char *p = NULL;
1006         uint32_t flags;
1007         uint32_t access_mask;
1008         uint32_t file_attributes;
1009         uint32_t share_access;
1010         uint32_t create_disposition;
1011         uint32_t create_options;
1012         uint32_t sd_len;
1013         struct security_descriptor *sd = NULL;
1014         uint32_t ea_len;
1015         uint16_t root_dir_fid;
1016         struct timespec create_timespec;
1017         struct timespec c_timespec;
1018         struct timespec a_timespec;
1019         struct timespec m_timespec;
1020         struct ea_list *ea_list = NULL;
1021         NTSTATUS status;
1022         size_t param_len;
1023         uint64_t allocation_size;
1024         int oplock_request;
1025         uint8_t oplock_granted;
1026         struct case_semantics_state *case_state = NULL;
1027         uint32_t ucf_flags = UCF_PREP_CREATEFILE |
1028                         (req->posix_pathnames ? UCF_POSIX_PATHNAMES : 0);
1029         TALLOC_CTX *ctx = talloc_tos();
1030
1031         DEBUG(5,("call_nt_transact_create\n"));
1032
1033         /*
1034          * If it's an IPC, use the pipe handler.
1035          */
1036
1037         if (IS_IPC(conn)) {
1038                 if (lp_nt_pipe_support()) {
1039                         do_nt_transact_create_pipe(
1040                                 conn, req,
1041                                 ppsetup, setup_count,
1042                                 ppparams, parameter_count,
1043                                 ppdata, data_count);
1044                         goto out;
1045                 }
1046                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1047                 goto out;
1048         }
1049
1050         /*
1051          * Ensure minimum number of parameters sent.
1052          */
1053
1054         if(parameter_count < 54) {
1055                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1056                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1057                 goto out;
1058         }
1059
1060         flags = IVAL(params,0);
1061         access_mask = IVAL(params,8);
1062         file_attributes = IVAL(params,20);
1063         share_access = IVAL(params,24);
1064         create_disposition = IVAL(params,28);
1065         create_options = IVAL(params,32);
1066         sd_len = IVAL(params,36);
1067         ea_len = IVAL(params,40);
1068         root_dir_fid = (uint16_t)IVAL(params,4);
1069         allocation_size = BVAL(params,12);
1070
1071         /*
1072          * we need to remove ignored bits when they come directly from the client
1073          * because we reuse some of them for internal stuff
1074          */
1075         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1076
1077         if (req->posix_pathnames) {
1078                 srvstr_get_path_posix(ctx,
1079                         params,
1080                         req->flags2,
1081                         &fname,
1082                         params+53,
1083                         parameter_count-53,
1084                         STR_TERMINATE,
1085                         &status);
1086         } else {
1087                 srvstr_get_path(ctx,
1088                         params,
1089                         req->flags2,
1090                         &fname,
1091                         params+53,
1092                         parameter_count-53,
1093                         STR_TERMINATE,
1094                         &status);
1095         }
1096         if (!NT_STATUS_IS_OK(status)) {
1097                 reply_nterror(req, status);
1098                 goto out;
1099         }
1100
1101         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1102                 case_state = set_posix_case_semantics(ctx, conn);
1103                 if (!case_state) {
1104                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1105                         goto out;
1106                 }
1107         }
1108
1109         status = filename_convert(ctx,
1110                                 conn,
1111                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1112                                 fname,
1113                                 ucf_flags,
1114                                 NULL,
1115                                 &smb_fname);
1116
1117         TALLOC_FREE(case_state);
1118
1119         if (!NT_STATUS_IS_OK(status)) {
1120                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1121                         reply_botherror(req,
1122                                 NT_STATUS_PATH_NOT_COVERED,
1123                                 ERRSRV, ERRbadpath);
1124                         goto out;
1125                 }
1126                 reply_nterror(req, status);
1127                 goto out;
1128         }
1129
1130         /* Ensure the data_len is correct for the sd and ea values given. */
1131         if ((ea_len + sd_len > data_count)
1132             || (ea_len > data_count) || (sd_len > data_count)
1133             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1134                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1135                            "%u, data_count = %u\n", (unsigned int)ea_len,
1136                            (unsigned int)sd_len, (unsigned int)data_count));
1137                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1138                 goto out;
1139         }
1140
1141         if (sd_len) {
1142                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1143                            sd_len));
1144
1145                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1146                                              &sd);
1147                 if (!NT_STATUS_IS_OK(status)) {
1148                         DEBUG(10, ("call_nt_transact_create: "
1149                                    "unmarshall_sec_desc failed: %s\n",
1150                                    nt_errstr(status)));
1151                         reply_nterror(req, status);
1152                         goto out;
1153                 }
1154         }
1155
1156         if (ea_len) {
1157                 if (!lp_ea_support(SNUM(conn))) {
1158                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1159                                    "EA's not supported.\n",
1160                                    (unsigned int)ea_len));
1161                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1162                         goto out;
1163                 }
1164
1165                 if (ea_len < 10) {
1166                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1167                                   "too small (should be more than 10)\n",
1168                                   (unsigned int)ea_len ));
1169                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1170                         goto out;
1171                 }
1172
1173                 /* We have already checked that ea_len <= data_count here. */
1174                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1175                                                ea_len);
1176                 if (ea_list == NULL) {
1177                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1178                         goto out;
1179                 }
1180
1181                 if (ea_list_has_invalid_name(ea_list)) {
1182                         /* Realloc the size of parameters and data we will return */
1183                         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1184                                 /* Extended response is 32 more byyes. */
1185                                 param_len = 101;
1186                         } else {
1187                                 param_len = 69;
1188                         }
1189                         params = nttrans_realloc(ppparams, param_len);
1190                         if(params == NULL) {
1191                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1192                                 goto out;
1193                         }
1194
1195                         memset(params, '\0', param_len);
1196                         send_nt_replies(conn, req, STATUS_INVALID_EA_NAME,
1197                                 params, param_len, NULL, 0);
1198                         goto out;
1199                 }
1200         }
1201
1202         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1203         if (oplock_request) {
1204                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1205                         ? BATCH_OPLOCK : 0;
1206         }
1207
1208         /*
1209          * Bug #6898 - clients using Windows opens should
1210          * never be able to set this attribute into the
1211          * VFS.
1212          */
1213         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1214
1215         status = SMB_VFS_CREATE_FILE(
1216                 conn,                                   /* conn */
1217                 req,                                    /* req */
1218                 root_dir_fid,                           /* root_dir_fid */
1219                 smb_fname,                              /* fname */
1220                 access_mask,                            /* access_mask */
1221                 share_access,                           /* share_access */
1222                 create_disposition,                     /* create_disposition*/
1223                 create_options,                         /* create_options */
1224                 file_attributes,                        /* file_attributes */
1225                 oplock_request,                         /* oplock_request */
1226                 NULL,                                   /* lease */
1227                 allocation_size,                        /* allocation_size */
1228                 0,                                      /* private_flags */
1229                 sd,                                     /* sd */
1230                 ea_list,                                /* ea_list */
1231                 &fsp,                                   /* result */
1232                 &info,                                  /* pinfo */
1233                 NULL, NULL);                            /* create context */
1234
1235         if(!NT_STATUS_IS_OK(status)) {
1236                 if (open_was_deferred(req->xconn, req->mid)) {
1237                         /* We have re-scheduled this call, no error. */
1238                         return;
1239                 }
1240                 reply_openerror(req, status);
1241                 goto out;
1242         }
1243
1244         /* Ensure we're pointing at the correct stat struct. */
1245         TALLOC_FREE(smb_fname);
1246         smb_fname = fsp->fsp_name;
1247
1248         /*
1249          * If the caller set the extended oplock request bit
1250          * and we granted one (by whatever means) - set the
1251          * correct bit for extended oplock reply.
1252          */
1253
1254         if (oplock_request &&
1255             (lp_fake_oplocks(SNUM(conn))
1256              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1257
1258                 /*
1259                  * Exclusive oplock granted
1260                  */
1261
1262                 if (flags & REQUEST_BATCH_OPLOCK) {
1263                         oplock_granted = BATCH_OPLOCK_RETURN;
1264                 } else {
1265                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1266                 }
1267         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1268                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1269         } else {
1270                 oplock_granted = NO_OPLOCK_RETURN;
1271         }
1272
1273         file_len = smb_fname->st.st_ex_size;
1274
1275         /* Realloc the size of parameters and data we will return */
1276         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1277                 /* Extended response is 32 more byyes. */
1278                 param_len = 101;
1279         } else {
1280                 param_len = 69;
1281         }
1282         params = nttrans_realloc(ppparams, param_len);
1283         if(params == NULL) {
1284                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1285                 goto out;
1286         }
1287
1288         p = params;
1289         SCVAL(p, 0, oplock_granted);
1290
1291         p += 2;
1292         SSVAL(p,0,fsp->fnum);
1293         p += 2;
1294         if ((create_disposition == FILE_SUPERSEDE)
1295             && (info == FILE_WAS_OVERWRITTEN)) {
1296                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1297         } else {
1298                 SIVAL(p,0,info);
1299         }
1300         p += 8;
1301
1302         fattr = dos_mode(conn, smb_fname);
1303         if (fattr == 0) {
1304                 fattr = FILE_ATTRIBUTE_NORMAL;
1305         }
1306
1307         /* Create time. */
1308         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1309         a_timespec = smb_fname->st.st_ex_atime;
1310         m_timespec = smb_fname->st.st_ex_mtime;
1311         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1312
1313         if (lp_dos_filetime_resolution(SNUM(conn))) {
1314                 dos_filetime_timespec(&create_timespec);
1315                 dos_filetime_timespec(&a_timespec);
1316                 dos_filetime_timespec(&m_timespec);
1317                 dos_filetime_timespec(&c_timespec);
1318         }
1319
1320         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1321         p += 8;
1322         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1323         p += 8;
1324         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1325         p += 8;
1326         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1327         p += 8;
1328         SIVAL(p,0,fattr); /* File Attributes. */
1329         p += 4;
1330         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1331         p += 8;
1332         SOFF_T(p,0,file_len);
1333         p += 8;
1334         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1335                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1336                 size_t num_names = 0;
1337                 unsigned int num_streams = 0;
1338                 struct stream_struct *streams = NULL;
1339
1340                 /* Do we have any EA's ? */
1341                 status = get_ea_names_from_file(ctx, conn, fsp,
1342                                 smb_fname, NULL, &num_names);
1343                 if (NT_STATUS_IS_OK(status) && num_names) {
1344                         file_status &= ~NO_EAS;
1345                 }
1346                 status = vfs_streaminfo(conn, NULL, smb_fname, ctx,
1347                         &num_streams, &streams);
1348                 /* There is always one stream, ::$DATA. */
1349                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1350                         file_status &= ~NO_SUBSTREAMS;
1351                 }
1352                 TALLOC_FREE(streams);
1353                 SSVAL(p,2,file_status);
1354         }
1355         p += 4;
1356         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1357
1358         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1359                 uint32_t perms = 0;
1360                 p += 25;
1361                 if (fsp->is_directory ||
1362                     fsp->can_write ||
1363                     can_write_to_file(conn, smb_fname)) {
1364                         perms = FILE_GENERIC_ALL;
1365                 } else {
1366                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1367                 }
1368                 SIVAL(p,0,perms);
1369         }
1370
1371         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1372                  smb_fname_str_dbg(smb_fname)));
1373
1374         /* Send the required number of replies */
1375         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1376  out:
1377         return;
1378 }
1379
1380 /****************************************************************************
1381  Reply to a NT CANCEL request.
1382  conn POINTER CAN BE NULL HERE !
1383 ****************************************************************************/
1384
1385 void reply_ntcancel(struct smb_request *req)
1386 {
1387         struct smbXsrv_connection *xconn = req->xconn;
1388         struct smbd_server_connection *sconn = req->sconn;
1389
1390         /*
1391          * Go through and cancel any pending change notifies.
1392          */
1393
1394         START_PROFILE(SMBntcancel);
1395         srv_cancel_sign_response(xconn);
1396         remove_pending_change_notify_requests_by_mid(sconn, req->mid);
1397         remove_pending_lock_requests_by_mid_smb1(sconn, req->mid);
1398
1399         DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1400                 (unsigned long long)req->mid));
1401
1402         END_PROFILE(SMBntcancel);
1403         return;
1404 }
1405
1406 /****************************************************************************
1407  Copy a file.
1408 ****************************************************************************/
1409
1410 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1411                                 connection_struct *conn,
1412                                 struct smb_request *req,
1413                                 struct smb_filename *smb_fname_src,
1414                                 struct smb_filename *smb_fname_dst,
1415                                 uint32_t attrs)
1416 {
1417         files_struct *fsp1,*fsp2;
1418         uint32_t fattr;
1419         int info;
1420         off_t ret=-1;
1421         NTSTATUS status = NT_STATUS_OK;
1422         char *parent;
1423
1424         if (!CAN_WRITE(conn)) {
1425                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1426                 goto out;
1427         }
1428
1429         /* Source must already exist. */
1430         if (!VALID_STAT(smb_fname_src->st)) {
1431                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1432                 goto out;
1433         }
1434
1435         /* Ensure attributes match. */
1436         fattr = dos_mode(conn, smb_fname_src);
1437         if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1438                 status = NT_STATUS_NO_SUCH_FILE;
1439                 goto out;
1440         }
1441
1442         /* Disallow if dst file already exists. */
1443         if (VALID_STAT(smb_fname_dst->st)) {
1444                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1445                 goto out;
1446         }
1447
1448         /* No links from a directory. */
1449         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1450                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1451                 goto out;
1452         }
1453
1454         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1455                   smb_fname_str_dbg(smb_fname_src),
1456                   smb_fname_str_dbg(smb_fname_dst)));
1457
1458         status = SMB_VFS_CREATE_FILE(
1459                 conn,                                   /* conn */
1460                 req,                                    /* req */
1461                 0,                                      /* root_dir_fid */
1462                 smb_fname_src,                          /* fname */
1463                 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1464                         FILE_READ_EA,                   /* access_mask */
1465                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1466                     FILE_SHARE_DELETE),
1467                 FILE_OPEN,                              /* create_disposition*/
1468                 0,                                      /* create_options */
1469                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1470                 NO_OPLOCK,                              /* oplock_request */
1471                 NULL,                                   /* lease */
1472                 0,                                      /* allocation_size */
1473                 0,                                      /* private_flags */
1474                 NULL,                                   /* sd */
1475                 NULL,                                   /* ea_list */
1476                 &fsp1,                                  /* result */
1477                 &info,                                  /* pinfo */
1478                 NULL, NULL);                            /* create context */
1479
1480         if (!NT_STATUS_IS_OK(status)) {
1481                 goto out;
1482         }
1483
1484         status = SMB_VFS_CREATE_FILE(
1485                 conn,                                   /* conn */
1486                 req,                                    /* req */
1487                 0,                                      /* root_dir_fid */
1488                 smb_fname_dst,                          /* fname */
1489                 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1490                         FILE_WRITE_EA,                  /* access_mask */
1491                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1492                     FILE_SHARE_DELETE),
1493                 FILE_CREATE,                            /* create_disposition*/
1494                 0,                                      /* create_options */
1495                 fattr,                                  /* file_attributes */
1496                 NO_OPLOCK,                              /* oplock_request */
1497                 NULL,                                   /* lease */
1498                 0,                                      /* allocation_size */
1499                 0,                                      /* private_flags */
1500                 NULL,                                   /* sd */
1501                 NULL,                                   /* ea_list */
1502                 &fsp2,                                  /* result */
1503                 &info,                                  /* pinfo */
1504                 NULL, NULL);                            /* create context */
1505
1506         if (!NT_STATUS_IS_OK(status)) {
1507                 close_file(NULL, fsp1, ERROR_CLOSE);
1508                 goto out;
1509         }
1510
1511         if (smb_fname_src->st.st_ex_size) {
1512                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1513         }
1514
1515         /*
1516          * As we are opening fsp1 read-only we only expect
1517          * an error on close on fsp2 if we are out of space.
1518          * Thus we don't look at the error return from the
1519          * close of fsp1.
1520          */
1521         close_file(NULL, fsp1, NORMAL_CLOSE);
1522
1523         /* Ensure the modtime is set correctly on the destination file. */
1524         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1525
1526         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1527
1528         /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1529            creates the file. This isn't the correct thing to do in the copy
1530            case. JRA */
1531         if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1532                             NULL)) {
1533                 status = NT_STATUS_NO_MEMORY;
1534                 goto out;
1535         }
1536         file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1537         TALLOC_FREE(parent);
1538
1539         if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1540                 status = NT_STATUS_DISK_FULL;
1541                 goto out;
1542         }
1543  out:
1544         if (!NT_STATUS_IS_OK(status)) {
1545                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1546                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1547                         smb_fname_str_dbg(smb_fname_dst)));
1548         }
1549
1550         return status;
1551 }
1552
1553 /****************************************************************************
1554  Reply to a NT rename request.
1555 ****************************************************************************/
1556
1557 void reply_ntrename(struct smb_request *req)
1558 {
1559         connection_struct *conn = req->conn;
1560         struct smb_filename *smb_fname_old = NULL;
1561         struct smb_filename *smb_fname_new = NULL;
1562         char *oldname = NULL;
1563         char *newname = NULL;
1564         const char *p;
1565         NTSTATUS status;
1566         bool src_has_wcard = False;
1567         bool dest_has_wcard = False;
1568         uint32_t attrs;
1569         uint32_t ucf_flags_src = (req->posix_pathnames ? UCF_POSIX_PATHNAMES : 0);
1570         uint32_t ucf_flags_dst = (req->posix_pathnames ? UCF_POSIX_PATHNAMES : 0);
1571         uint16_t rename_type;
1572         TALLOC_CTX *ctx = talloc_tos();
1573         bool stream_rename = false;
1574
1575         START_PROFILE(SMBntrename);
1576
1577         if (req->wct < 4) {
1578                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1579                 goto out;
1580         }
1581
1582         attrs = SVAL(req->vwv+0, 0);
1583         rename_type = SVAL(req->vwv+1, 0);
1584
1585         p = (const char *)req->buf + 1;
1586         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1587                                        &status, &src_has_wcard);
1588         if (!NT_STATUS_IS_OK(status)) {
1589                 reply_nterror(req, status);
1590                 goto out;
1591         }
1592
1593         if (!req->posix_pathnames && ms_has_wild(oldname)) {
1594                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1595                 goto out;
1596         }
1597
1598         p++;
1599         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1600                                        &status, &dest_has_wcard);
1601         if (!NT_STATUS_IS_OK(status)) {
1602                 reply_nterror(req, status);
1603                 goto out;
1604         }
1605
1606         if (!req->posix_pathnames) {
1607                 /* The newname must begin with a ':' if the
1608                    oldname contains a ':'. */
1609                 if (strchr_m(oldname, ':')) {
1610                         if (newname[0] != ':') {
1611                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1612                                 goto out;
1613                         }
1614                         stream_rename = true;
1615                 }
1616         }
1617
1618         /*
1619          * If this is a rename operation, allow wildcards and save the
1620          * destination's last component.
1621          */
1622         if (rename_type == RENAME_FLAG_RENAME) {
1623                 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1624                 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1625         }
1626
1627         /* rename_internals() calls unix_convert(), so don't call it here. */
1628         status = filename_convert(ctx, conn,
1629                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1630                                   oldname,
1631                                   ucf_flags_src,
1632                                   NULL,
1633                                   &smb_fname_old);
1634         if (!NT_STATUS_IS_OK(status)) {
1635                 if (NT_STATUS_EQUAL(status,
1636                                     NT_STATUS_PATH_NOT_COVERED)) {
1637                         reply_botherror(req,
1638                                         NT_STATUS_PATH_NOT_COVERED,
1639                                         ERRSRV, ERRbadpath);
1640                         goto out;
1641                 }
1642                 reply_nterror(req, status);
1643                 goto out;
1644         }
1645
1646         status = filename_convert(ctx, conn,
1647                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1648                                   newname,
1649                                   ucf_flags_dst,
1650                                   &dest_has_wcard,
1651                                   &smb_fname_new);
1652         if (!NT_STATUS_IS_OK(status)) {
1653                 if (NT_STATUS_EQUAL(status,
1654                                     NT_STATUS_PATH_NOT_COVERED)) {
1655                         reply_botherror(req,
1656                                         NT_STATUS_PATH_NOT_COVERED,
1657                                         ERRSRV, ERRbadpath);
1658                         goto out;
1659                 }
1660                 reply_nterror(req, status);
1661                 goto out;
1662         }
1663
1664         if (stream_rename) {
1665                 /* smb_fname_new must be the same as smb_fname_old. */
1666                 TALLOC_FREE(smb_fname_new->base_name);
1667                 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1668                                                 smb_fname_old->base_name);
1669                 if (!smb_fname_new->base_name) {
1670                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1671                         goto out;
1672                 }
1673         }
1674
1675         DEBUG(3,("reply_ntrename: %s -> %s\n",
1676                  smb_fname_str_dbg(smb_fname_old),
1677                  smb_fname_str_dbg(smb_fname_new)));
1678
1679         switch(rename_type) {
1680                 case RENAME_FLAG_RENAME:
1681                         status = rename_internals(ctx, conn, req,
1682                                                   smb_fname_old, smb_fname_new,
1683                                                   attrs, False, src_has_wcard,
1684                                                   dest_has_wcard,
1685                                                   DELETE_ACCESS);
1686                         break;
1687                 case RENAME_FLAG_HARD_LINK:
1688                         if (src_has_wcard || dest_has_wcard) {
1689                                 /* No wildcards. */
1690                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1691                         } else {
1692                                 status = hardlink_internals(ctx, conn,
1693                                                             req,
1694                                                             false,
1695                                                             smb_fname_old,
1696                                                             smb_fname_new);
1697                         }
1698                         break;
1699                 case RENAME_FLAG_COPY:
1700                         if (src_has_wcard || dest_has_wcard) {
1701                                 /* No wildcards. */
1702                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1703                         } else {
1704                                 status = copy_internals(ctx, conn, req,
1705                                                         smb_fname_old,
1706                                                         smb_fname_new,
1707                                                         attrs);
1708                         }
1709                         break;
1710                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1711                         status = NT_STATUS_INVALID_PARAMETER;
1712                         break;
1713                 default:
1714                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1715                         break;
1716         }
1717
1718         if (!NT_STATUS_IS_OK(status)) {
1719                 if (open_was_deferred(req->xconn, req->mid)) {
1720                         /* We have re-scheduled this call. */
1721                         goto out;
1722                 }
1723
1724                 reply_nterror(req, status);
1725                 goto out;
1726         }
1727
1728         reply_outbuf(req, 0, 0);
1729  out:
1730         END_PROFILE(SMBntrename);
1731         return;
1732 }
1733
1734 /****************************************************************************
1735  Reply to a notify change - queue the request and
1736  don't allow a directory to be opened.
1737 ****************************************************************************/
1738
1739 static void smbd_smb1_notify_reply(struct smb_request *req,
1740                                    NTSTATUS error_code,
1741                                    uint8_t *buf, size_t len)
1742 {
1743         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1744 }
1745
1746 static void call_nt_transact_notify_change(connection_struct *conn,
1747                                            struct smb_request *req,
1748                                            uint16_t **ppsetup,
1749                                            uint32_t setup_count,
1750                                            char **ppparams,
1751                                            uint32_t parameter_count,
1752                                            char **ppdata, uint32_t data_count,
1753                                            uint32_t max_data_count,
1754                                            uint32_t max_param_count)
1755 {
1756         uint16_t *setup = *ppsetup;
1757         files_struct *fsp;
1758         uint32_t filter;
1759         NTSTATUS status;
1760         bool recursive;
1761
1762         if(setup_count < 6) {
1763                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1764                 return;
1765         }
1766
1767         fsp = file_fsp(req, SVAL(setup,4));
1768         filter = IVAL(setup, 0);
1769         recursive = (SVAL(setup, 6) != 0) ? True : False;
1770
1771         DEBUG(3,("call_nt_transact_notify_change\n"));
1772
1773         if(!fsp) {
1774                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1775                 return;
1776         }
1777
1778         {
1779                 char *filter_string;
1780
1781                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1782                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1783                         return;
1784                 }
1785
1786                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1787                          "called on %s, filter = %s, recursive = %d\n",
1788                          fsp_str_dbg(fsp), filter_string, recursive));
1789
1790                 TALLOC_FREE(filter_string);
1791         }
1792
1793         if((!fsp->is_directory) || (conn != fsp->conn)) {
1794                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1795                 return;
1796         }
1797
1798         if (fsp->notify == NULL) {
1799
1800                 status = change_notify_create(fsp, filter, recursive);
1801
1802                 if (!NT_STATUS_IS_OK(status)) {
1803                         DEBUG(10, ("change_notify_create returned %s\n",
1804                                    nt_errstr(status)));
1805                         reply_nterror(req, status);
1806                         return;
1807                 }
1808         }
1809
1810         if (change_notify_fsp_has_changes(fsp)) {
1811
1812                 /*
1813                  * We've got changes pending, respond immediately
1814                  */
1815
1816                 /*
1817                  * TODO: write a torture test to check the filtering behaviour
1818                  * here.
1819                  */
1820
1821                 change_notify_reply(req,
1822                                     NT_STATUS_OK,
1823                                     max_param_count,
1824                                     fsp->notify,
1825                                     smbd_smb1_notify_reply);
1826
1827                 /*
1828                  * change_notify_reply() above has independently sent its
1829                  * results
1830                  */
1831                 return;
1832         }
1833
1834         /*
1835          * No changes pending, queue the request
1836          */
1837
1838         status = change_notify_add_request(req,
1839                         max_param_count,
1840                         filter,
1841                         recursive, fsp,
1842                         smbd_smb1_notify_reply);
1843         if (!NT_STATUS_IS_OK(status)) {
1844                 reply_nterror(req, status);
1845         }
1846         return;
1847 }
1848
1849 /****************************************************************************
1850  Reply to an NT transact rename command.
1851 ****************************************************************************/
1852
1853 static void call_nt_transact_rename(connection_struct *conn,
1854                                     struct smb_request *req,
1855                                     uint16_t **ppsetup, uint32_t setup_count,
1856                                     char **ppparams, uint32_t parameter_count,
1857                                     char **ppdata, uint32_t data_count,
1858                                     uint32_t max_data_count)
1859 {
1860         char *params = *ppparams;
1861         char *new_name = NULL;
1862         files_struct *fsp = NULL;
1863         bool dest_has_wcard = False;
1864         NTSTATUS status;
1865         TALLOC_CTX *ctx = talloc_tos();
1866
1867         if(parameter_count < 5) {
1868                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1869                 return;
1870         }
1871
1872         fsp = file_fsp(req, SVAL(params, 0));
1873         if (!check_fsp(conn, req, fsp)) {
1874                 return;
1875         }
1876         if (req->posix_pathnames) {
1877                 srvstr_get_path_wcard_posix(ctx,
1878                                 params,
1879                                 req->flags2,
1880                                 &new_name,
1881                                 params+4,
1882                                 parameter_count - 4,
1883                                 STR_TERMINATE,
1884                                 &status,
1885                                 &dest_has_wcard);
1886         } else {
1887                 srvstr_get_path_wcard(ctx,
1888                                 params,
1889                                 req->flags2,
1890                                 &new_name,
1891                                 params+4,
1892                                 parameter_count - 4,
1893                                 STR_TERMINATE,
1894                                 &status,
1895                                 &dest_has_wcard);
1896         }
1897
1898         if (!NT_STATUS_IS_OK(status)) {
1899                 reply_nterror(req, status);
1900                 return;
1901         }
1902
1903         /*
1904          * W2K3 ignores this request as the RAW-RENAME test
1905          * demonstrates, so we do.
1906          */
1907         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1908
1909         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1910                  fsp_str_dbg(fsp), new_name));
1911
1912         return;
1913 }
1914
1915 /******************************************************************************
1916  Fake up a completely empty SD.
1917 *******************************************************************************/
1918
1919 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1920 {
1921         size_t sd_size;
1922
1923         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1924         if(!*ppsd) {
1925                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1926                 return NT_STATUS_NO_MEMORY;
1927         }
1928
1929         return NT_STATUS_OK;
1930 }
1931
1932 /****************************************************************************
1933  Reply to query a security descriptor.
1934  Callable from SMB1 and SMB2.
1935  If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1936  the required size.
1937 ****************************************************************************/
1938
1939 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1940                                         TALLOC_CTX *mem_ctx,
1941                                         files_struct *fsp,
1942                                         uint32_t security_info_wanted,
1943                                         uint32_t max_data_count,
1944                                         uint8_t **ppmarshalled_sd,
1945                                         size_t *psd_size)
1946 {
1947         NTSTATUS status;
1948         struct security_descriptor *psd = NULL;
1949         TALLOC_CTX *frame = talloc_stackframe();
1950
1951         /*
1952          * Get the permissions to return.
1953          */
1954
1955         if ((security_info_wanted & SECINFO_SACL) &&
1956                         !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1957                 DEBUG(10, ("Access to SACL denied.\n"));
1958                 TALLOC_FREE(frame);
1959                 return NT_STATUS_ACCESS_DENIED;
1960         }
1961
1962         if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1963                         !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1964                 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1965                 TALLOC_FREE(frame);
1966                 return NT_STATUS_ACCESS_DENIED;
1967         }
1968
1969         if (S_ISLNK(fsp->fsp_name->st.st_ex_mode)) {
1970                 DEBUG(10, ("ACL get on symlink %s denied.\n",
1971                         fsp_str_dbg(fsp)));
1972                 TALLOC_FREE(frame);
1973                 return NT_STATUS_ACCESS_DENIED;
1974         }
1975
1976         if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1977                         SECINFO_GROUP|SECINFO_SACL)) {
1978                 /* Don't return SECINFO_LABEL if anything else was
1979                    requested. See bug #8458. */
1980                 security_info_wanted &= ~SECINFO_LABEL;
1981         }
1982
1983         if (!lp_nt_acl_support(SNUM(conn))) {
1984                 status = get_null_nt_acl(frame, &psd);
1985         } else if (security_info_wanted & SECINFO_LABEL) {
1986                 /* Like W2K3 return a null object. */
1987                 status = get_null_nt_acl(frame, &psd);
1988         } else {
1989                 status = SMB_VFS_FGET_NT_ACL(
1990                         fsp, security_info_wanted, frame, &psd);
1991         }
1992         if (!NT_STATUS_IS_OK(status)) {
1993                 TALLOC_FREE(frame);
1994                 return status;
1995         }
1996
1997         if (!(security_info_wanted & SECINFO_OWNER)) {
1998                 psd->owner_sid = NULL;
1999         }
2000         if (!(security_info_wanted & SECINFO_GROUP)) {
2001                 psd->group_sid = NULL;
2002         }
2003         if (!(security_info_wanted & SECINFO_DACL)) {
2004                 psd->type &= ~SEC_DESC_DACL_PRESENT;
2005                 psd->dacl = NULL;
2006         }
2007         if (!(security_info_wanted & SECINFO_SACL)) {
2008                 psd->type &= ~SEC_DESC_SACL_PRESENT;
2009                 psd->sacl = NULL;
2010         }
2011
2012         /* If the SACL/DACL is NULL, but was requested, we mark that it is
2013          * present in the reply to match Windows behavior */
2014         if (psd->sacl == NULL &&
2015             security_info_wanted & SECINFO_SACL)
2016                 psd->type |= SEC_DESC_SACL_PRESENT;
2017         if (psd->dacl == NULL &&
2018             security_info_wanted & SECINFO_DACL)
2019                 psd->type |= SEC_DESC_DACL_PRESENT;
2020
2021         if (security_info_wanted & SECINFO_LABEL) {
2022                 /* Like W2K3 return a null object. */
2023                 psd->owner_sid = NULL;
2024                 psd->group_sid = NULL;
2025                 psd->dacl = NULL;
2026                 psd->sacl = NULL;
2027                 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
2028         }
2029
2030         *psd_size = ndr_size_security_descriptor(psd, 0);
2031
2032         DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
2033                 (unsigned long)*psd_size));
2034
2035         if (DEBUGLEVEL >= 10) {
2036                 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
2037                           fsp_str_dbg(fsp)));
2038                 NDR_PRINT_DEBUG(security_descriptor, psd);
2039         }
2040
2041         if (max_data_count < *psd_size) {
2042                 TALLOC_FREE(frame);
2043                 return NT_STATUS_BUFFER_TOO_SMALL;
2044         }
2045
2046         status = marshall_sec_desc(mem_ctx, psd,
2047                                    ppmarshalled_sd, psd_size);
2048
2049         if (!NT_STATUS_IS_OK(status)) {
2050                 TALLOC_FREE(frame);
2051                 return status;
2052         }
2053
2054         TALLOC_FREE(frame);
2055         return NT_STATUS_OK;
2056 }
2057
2058 /****************************************************************************
2059  SMB1 reply to query a security descriptor.
2060 ****************************************************************************/
2061
2062 static void call_nt_transact_query_security_desc(connection_struct *conn,
2063                                                  struct smb_request *req,
2064                                                  uint16_t **ppsetup,
2065                                                  uint32_t setup_count,
2066                                                  char **ppparams,
2067                                                  uint32_t parameter_count,
2068                                                  char **ppdata,
2069                                                  uint32_t data_count,
2070                                                  uint32_t max_data_count)
2071 {
2072         char *params = *ppparams;
2073         char *data = *ppdata;
2074         size_t sd_size = 0;
2075         uint32_t security_info_wanted;
2076         files_struct *fsp = NULL;
2077         NTSTATUS status;
2078         uint8_t *marshalled_sd = NULL;
2079
2080         if(parameter_count < 8) {
2081                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2082                 return;
2083         }
2084
2085         fsp = file_fsp(req, SVAL(params,0));
2086         if(!fsp) {
2087                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2088                 return;
2089         }
2090
2091         security_info_wanted = IVAL(params,4);
2092
2093         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2094                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2095                  (unsigned int)security_info_wanted));
2096
2097         params = nttrans_realloc(ppparams, 4);
2098         if(params == NULL) {
2099                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2100                 return;
2101         }
2102
2103         /*
2104          * Get the permissions to return.
2105          */
2106
2107         status = smbd_do_query_security_desc(conn,
2108                                         talloc_tos(),
2109                                         fsp,
2110                                         security_info_wanted &
2111                                         SMB_SUPPORTED_SECINFO_FLAGS,
2112                                         max_data_count,
2113                                         &marshalled_sd,
2114                                         &sd_size);
2115
2116         if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2117                 SIVAL(params,0,(uint32_t)sd_size);
2118                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2119                         params, 4, NULL, 0);
2120                 return;
2121         }
2122
2123         if (!NT_STATUS_IS_OK(status)) {
2124                 reply_nterror(req, status);
2125                 return;
2126         }
2127
2128         SMB_ASSERT(sd_size > 0);
2129
2130         SIVAL(params,0,(uint32_t)sd_size);
2131
2132         if (max_data_count < sd_size) {
2133                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2134                                 params, 4, NULL, 0);
2135                 return;
2136         }
2137
2138         /*
2139          * Allocate the data we will return.
2140          */
2141
2142         data = nttrans_realloc(ppdata, sd_size);
2143         if(data == NULL) {
2144                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2145                 return;
2146         }
2147
2148         memcpy(data, marshalled_sd, sd_size);
2149
2150         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2151
2152         return;
2153 }
2154
2155 /****************************************************************************
2156  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2157 ****************************************************************************/
2158
2159 static void call_nt_transact_set_security_desc(connection_struct *conn,
2160                                                struct smb_request *req,
2161                                                uint16_t **ppsetup,
2162                                                uint32_t setup_count,
2163                                                char **ppparams,
2164                                                uint32_t parameter_count,
2165                                                char **ppdata,
2166                                                uint32_t data_count,
2167                                                uint32_t max_data_count)
2168 {
2169         char *params= *ppparams;
2170         char *data = *ppdata;
2171         files_struct *fsp = NULL;
2172         uint32_t security_info_sent = 0;
2173         NTSTATUS status;
2174
2175         if(parameter_count < 8) {
2176                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2177                 return;
2178         }
2179
2180         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2181                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2182                 return;
2183         }
2184
2185         if (!CAN_WRITE(fsp->conn)) {
2186                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2187                 return;
2188         }
2189
2190         if(!lp_nt_acl_support(SNUM(conn))) {
2191                 goto done;
2192         }
2193
2194         security_info_sent = IVAL(params,4);
2195
2196         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2197                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2198
2199         if (data_count == 0) {
2200                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2201                 return;
2202         }
2203
2204         status = set_sd_blob(fsp, (uint8_t *)data, data_count,
2205                              security_info_sent & SMB_SUPPORTED_SECINFO_FLAGS);
2206         if (!NT_STATUS_IS_OK(status)) {
2207                 reply_nterror(req, status);
2208                 return;
2209         }
2210
2211   done:
2212         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2213         return;
2214 }
2215
2216 /****************************************************************************
2217  Reply to NT IOCTL
2218 ****************************************************************************/
2219
2220 static void call_nt_transact_ioctl(connection_struct *conn,
2221                                    struct smb_request *req,
2222                                    uint16_t **ppsetup, uint32_t setup_count,
2223                                    char **ppparams, uint32_t parameter_count,
2224                                    char **ppdata, uint32_t data_count,
2225                                    uint32_t max_data_count)
2226 {
2227         NTSTATUS status;
2228         uint32_t function;
2229         uint16_t fidnum;
2230         files_struct *fsp;
2231         uint8_t isFSctl;
2232         uint8_t compfilter;
2233         char *out_data = NULL;
2234         uint32_t out_data_len = 0;
2235         char *pdata = *ppdata;
2236         TALLOC_CTX *ctx = talloc_tos();
2237
2238         if (setup_count != 8) {
2239                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2240                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2241                 return;
2242         }
2243
2244         function = IVAL(*ppsetup, 0);
2245         fidnum = SVAL(*ppsetup, 4);
2246         isFSctl = CVAL(*ppsetup, 6);
2247         compfilter = CVAL(*ppsetup, 7);
2248
2249         DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2250                  function, fidnum, isFSctl, compfilter));
2251
2252         fsp=file_fsp(req, fidnum);
2253
2254         /*
2255          * We don't really implement IOCTLs, especially on files.
2256          */
2257         if (!isFSctl) {
2258                 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2259                         isFSctl));
2260                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2261                 return;
2262         }
2263
2264         /* Has to be for an open file! */
2265         if (!check_fsp_open(conn, req, fsp)) {
2266                 return;
2267         }
2268
2269         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2270
2271         /*
2272          * out_data might be allocated by the VFS module, but talloc should be
2273          * used, and should be cleaned up when the request ends.
2274          */
2275         status = SMB_VFS_FSCTL(fsp,
2276                                ctx,
2277                                function,
2278                                req->flags2,
2279                                (uint8_t *)pdata,
2280                                data_count,
2281                                (uint8_t **)&out_data,
2282                                max_data_count,
2283                                &out_data_len);
2284         if (!NT_STATUS_IS_OK(status)) {
2285                 reply_nterror(req, status);
2286         } else {
2287                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2288         }
2289 }
2290
2291
2292 #ifdef HAVE_SYS_QUOTAS
2293 /****************************************************************************
2294  Reply to get user quota
2295 ****************************************************************************/
2296
2297 static void call_nt_transact_get_user_quota(connection_struct *conn,
2298                                             struct smb_request *req,
2299                                             uint16_t **ppsetup,
2300                                             uint32_t setup_count,
2301                                             char **ppparams,
2302                                             uint32_t parameter_count,
2303                                             char **ppdata,
2304                                             uint32_t data_count,
2305                                             uint32_t max_data_count)
2306 {
2307         NTSTATUS nt_status = NT_STATUS_OK;
2308         char *params = *ppparams;
2309         char *pdata = *ppdata;
2310         char *entry;
2311         int data_len=0,param_len=0;
2312         int qt_len=0;
2313         int entry_len = 0;
2314         files_struct *fsp = NULL;
2315         uint16_t level = 0;
2316         size_t sid_len;
2317         struct dom_sid sid;
2318         bool start_enum = True;
2319         SMB_NTQUOTA_STRUCT qt;
2320         SMB_NTQUOTA_LIST *tmp_list;
2321         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2322
2323         ZERO_STRUCT(qt);
2324
2325         /* access check */
2326         if (get_current_uid(conn) != sec_initial_uid()) {
2327                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2328                          "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2329                          conn->session_info->unix_info->unix_name));
2330                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2331                 return;
2332         }
2333
2334         /*
2335          * Ensure minimum number of parameters sent.
2336          */
2337
2338         if (parameter_count < 4) {
2339                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2340                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2341                 return;
2342         }
2343
2344         /* maybe we can check the quota_fnum */
2345         fsp = file_fsp(req, SVAL(params,0));
2346         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2347                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2348                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2349                 return;
2350         }
2351
2352         /* the NULL pointer checking for fsp->fake_file_handle->pd
2353          * is done by CHECK_NTQUOTA_HANDLE_OK()
2354          */
2355         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2356
2357         level = SVAL(params,2);
2358
2359         /* unknown 12 bytes leading in params */
2360
2361         switch (level) {
2362                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2363                         /* seems that we should continue with the enum here --metze */
2364
2365                         if (qt_handle->quota_list!=NULL &&
2366                             qt_handle->tmp_list==NULL) {
2367
2368                                 /* free the list */
2369                                 free_ntquota_list(&(qt_handle->quota_list));
2370
2371                                 /* Realloc the size of parameters and data we will return */
2372                                 param_len = 4;
2373                                 params = nttrans_realloc(ppparams, param_len);
2374                                 if(params == NULL) {
2375                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2376                                         return;
2377                                 }
2378
2379                                 data_len = 0;
2380                                 SIVAL(params,0,data_len);
2381
2382                                 break;
2383                         }
2384
2385                         start_enum = False;
2386
2387                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2388
2389                         if (qt_handle->quota_list==NULL &&
2390                                 qt_handle->tmp_list==NULL) {
2391                                 start_enum = True;
2392                         }
2393
2394                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2395                                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2396                                 return;
2397                         }
2398
2399                         /* Realloc the size of parameters and data we will return */
2400                         param_len = 4;
2401                         params = nttrans_realloc(ppparams, param_len);
2402                         if(params == NULL) {
2403                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2404                                 return;
2405                         }
2406
2407                         /* we should not trust the value in max_data_count*/
2408                         max_data_count = MIN(max_data_count,2048);
2409
2410                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2411                         if(pdata == NULL) {
2412                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2413                                 return;
2414                         }
2415
2416                         entry = pdata;
2417
2418                         /* set params Size of returned Quota Data 4 bytes*/
2419                         /* but set it later when we know it */
2420
2421                         /* for each entry push the data */
2422
2423                         if (start_enum) {
2424                                 qt_handle->tmp_list = qt_handle->quota_list;
2425                         }
2426
2427                         tmp_list = qt_handle->tmp_list;
2428
2429                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2430                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2431
2432                                 sid_len = ndr_size_dom_sid(
2433                                         &tmp_list->quotas->sid, 0);
2434                                 entry_len = 40 + sid_len;
2435
2436                                 /* nextoffset entry 4 bytes */
2437                                 SIVAL(entry,0,entry_len);
2438
2439                                 /* then the len of the SID 4 bytes */
2440                                 SIVAL(entry,4,sid_len);
2441
2442                                 /* unknown data 8 bytes uint64_t */
2443                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2444
2445                                 /* the used disk space 8 bytes uint64_t */
2446                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2447
2448                                 /* the soft quotas 8 bytes uint64_t */
2449                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2450
2451                                 /* the hard quotas 8 bytes uint64_t */
2452                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2453
2454                                 /* and now the SID */
2455                                 sid_linearize((uint8_t *)(entry+40), sid_len,
2456                                               &tmp_list->quotas->sid);
2457                         }
2458
2459                         qt_handle->tmp_list = tmp_list;
2460
2461                         /* overwrite the offset of the last entry */
2462                         SIVAL(entry-entry_len,0,0);
2463
2464                         data_len = 4+qt_len;
2465                         /* overwrite the params quota_data_len */
2466                         SIVAL(params,0,data_len);
2467
2468                         break;
2469
2470                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2471
2472                         /* unknown 4 bytes IVAL(pdata,0) */
2473
2474                         if (data_count < 8) {
2475                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2476                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2477                                 return;
2478                         }
2479
2480                         sid_len = IVAL(pdata,4);
2481                         /* Ensure this is less than 1mb. */
2482                         if (sid_len > (1024*1024)) {
2483                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2484                                 return;
2485                         }
2486
2487                         if (data_count < 8+sid_len) {
2488                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2489                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2490                                 return;
2491                         }
2492
2493                         data_len = 4+40+sid_len;
2494
2495                         if (max_data_count < data_len) {
2496                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2497                                         max_data_count, data_len));
2498                                 param_len = 4;
2499                                 SIVAL(params,0,data_len);
2500                                 data_len = 0;
2501                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2502                                 break;
2503                         }
2504
2505                         if (!sid_parse((const uint8_t *)(pdata+8), sid_len,
2506                                        &sid)) {
2507                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2508                                 return;
2509                         }
2510
2511                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2512                                 ZERO_STRUCT(qt);
2513                                 /*
2514                                  * we have to return zero's in all fields
2515                                  * instead of returning an error here
2516                                  * --metze
2517                                  */
2518                         }
2519
2520                         /* Realloc the size of parameters and data we will return */
2521                         param_len = 4;
2522                         params = nttrans_realloc(ppparams, param_len);
2523                         if(params == NULL) {
2524                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2525                                 return;
2526                         }
2527
2528                         pdata = nttrans_realloc(ppdata, data_len);
2529                         if(pdata == NULL) {
2530                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2531                                 return;
2532                         }
2533
2534                         entry = pdata;
2535
2536                         /* set params Size of returned Quota Data 4 bytes*/
2537                         SIVAL(params,0,data_len);
2538
2539                         /* nextoffset entry 4 bytes */
2540                         SIVAL(entry,0,0);
2541
2542                         /* then the len of the SID 4 bytes */
2543                         SIVAL(entry,4,sid_len);
2544
2545                         /* unknown data 8 bytes uint64_t */
2546                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2547
2548                         /* the used disk space 8 bytes uint64_t */
2549                         SBIG_UINT(entry,16,qt.usedspace);
2550
2551                         /* the soft quotas 8 bytes uint64_t */
2552                         SBIG_UINT(entry,24,qt.softlim);
2553
2554                         /* the hard quotas 8 bytes uint64_t */
2555                         SBIG_UINT(entry,32,qt.hardlim);
2556
2557                         /* and now the SID */
2558                         sid_linearize((uint8_t *)(entry+40), sid_len, &sid);
2559
2560                         break;
2561
2562                 default:
2563                         DEBUG(0, ("do_nt_transact_get_user_quota: %s: unknown "
2564                                   "level 0x%04hX\n",
2565                                   fsp_fnum_dbg(fsp), level));
2566                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2567                         return;
2568                         break;
2569         }
2570
2571         send_nt_replies(conn, req, nt_status, params, param_len,
2572                         pdata, data_len);
2573 }
2574
2575 /****************************************************************************
2576  Reply to set user quota
2577 ****************************************************************************/
2578
2579 static void call_nt_transact_set_user_quota(connection_struct *conn,
2580                                             struct smb_request *req,
2581                                             uint16_t **ppsetup,
2582                                             uint32_t setup_count,
2583                                             char **ppparams,
2584                                             uint32_t parameter_count,
2585                                             char **ppdata,
2586                                             uint32_t data_count,
2587                                             uint32_t max_data_count)
2588 {
2589         char *params = *ppparams;
2590         char *pdata = *ppdata;
2591         int data_len=0,param_len=0;
2592         SMB_NTQUOTA_STRUCT qt;
2593         size_t sid_len;
2594         struct dom_sid sid;
2595         files_struct *fsp = NULL;
2596
2597         ZERO_STRUCT(qt);
2598
2599         /* access check */
2600         if (get_current_uid(conn) != 0) {
2601                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2602                          "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2603                          conn->session_info->unix_info->unix_name));
2604                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2605                 return;
2606         }
2607
2608         /*
2609          * Ensure minimum number of parameters sent.
2610          */
2611
2612         if (parameter_count < 2) {
2613                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2614                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2615                 return;
2616         }
2617
2618         /* maybe we can check the quota_fnum */
2619         fsp = file_fsp(req, SVAL(params,0));
2620         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2621                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2622                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2623                 return;
2624         }
2625
2626         if (data_count < 40) {
2627                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2628                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2629                 return;
2630         }
2631
2632         /* offset to next quota record.
2633          * 4 bytes IVAL(pdata,0)
2634          * unused here...
2635          */
2636
2637         /* sid len */
2638         sid_len = IVAL(pdata,4);
2639
2640         if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2641                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2642                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2643                 return;
2644         }
2645
2646         /* unknown 8 bytes in pdata
2647          * maybe its the change time in NTTIME
2648          */
2649
2650         /* the used space 8 bytes (uint64_t)*/
2651         qt.usedspace = BVAL(pdata,16);
2652
2653         /* the soft quotas 8 bytes (uint64_t)*/
2654         qt.softlim = BVAL(pdata,24);
2655
2656         /* the hard quotas 8 bytes (uint64_t)*/
2657         qt.hardlim = BVAL(pdata,32);
2658
2659         if (!sid_parse((const uint8_t *)(pdata+40), sid_len, &sid)) {
2660                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2661                 return;
2662         }
2663
2664         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2665
2666         /* 44 unknown bytes left... */
2667
2668         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2669                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2670                 return;
2671         }
2672
2673         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2674                         pdata, data_len);
2675 }
2676 #endif /* HAVE_SYS_QUOTAS */
2677
2678 static void handle_nttrans(connection_struct *conn,
2679                            struct trans_state *state,
2680                            struct smb_request *req)
2681 {
2682         if (get_Protocol() >= PROTOCOL_NT1) {
2683                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2684                 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2685         }
2686
2687
2688         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2689
2690         /* Now we must call the relevant NT_TRANS function */
2691         switch(state->call) {
2692                 case NT_TRANSACT_CREATE:
2693                 {
2694                         START_PROFILE(NT_transact_create);
2695                         call_nt_transact_create(
2696                                 conn, req,
2697                                 &state->setup, state->setup_count,
2698                                 &state->param, state->total_param,
2699                                 &state->data, state->total_data,
2700                                 state->max_data_return);
2701                         END_PROFILE(NT_transact_create);
2702                         break;
2703                 }
2704
2705                 case NT_TRANSACT_IOCTL:
2706                 {
2707                         START_PROFILE(NT_transact_ioctl);
2708                         call_nt_transact_ioctl(
2709                                 conn, req,
2710                                 &state->setup, state->setup_count,
2711                                 &state->param, state->total_param,
2712                                 &state->data, state->total_data,
2713                                 state->max_data_return);
2714                         END_PROFILE(NT_transact_ioctl);
2715                         break;
2716                 }
2717
2718                 case NT_TRANSACT_SET_SECURITY_DESC:
2719                 {
2720                         START_PROFILE(NT_transact_set_security_desc);
2721                         call_nt_transact_set_security_desc(
2722                                 conn, req,
2723                                 &state->setup, state->setup_count,
2724                                 &state->param, state->total_param,
2725                                 &state->data, state->total_data,
2726                                 state->max_data_return);
2727                         END_PROFILE(NT_transact_set_security_desc);
2728                         break;
2729                 }
2730
2731                 case NT_TRANSACT_NOTIFY_CHANGE:
2732                 {
2733                         START_PROFILE(NT_transact_notify_change);
2734                         call_nt_transact_notify_change(
2735                                 conn, req,
2736                                 &state->setup, state->setup_count,
2737                                 &state->param, state->total_param,
2738                                 &state->data, state->total_data,
2739                                 state->max_data_return,
2740                                 state->max_param_return);
2741                         END_PROFILE(NT_transact_notify_change);
2742                         break;
2743                 }
2744
2745                 case NT_TRANSACT_RENAME:
2746                 {
2747                         START_PROFILE(NT_transact_rename);
2748                         call_nt_transact_rename(
2749                                 conn, req,
2750                                 &state->setup, state->setup_count,
2751                                 &state->param, state->total_param,
2752                                 &state->data, state->total_data,
2753                                 state->max_data_return);
2754                         END_PROFILE(NT_transact_rename);
2755                         break;
2756                 }
2757
2758                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2759                 {
2760                         START_PROFILE(NT_transact_query_security_desc);
2761                         call_nt_transact_query_security_desc(
2762                                 conn, req,
2763                                 &state->setup, state->setup_count,
2764                                 &state->param, state->total_param,
2765                                 &state->data, state->total_data,
2766                                 state->max_data_return);
2767                         END_PROFILE(NT_transact_query_security_desc);
2768                         break;
2769                 }
2770
2771 #ifdef HAVE_SYS_QUOTAS
2772                 case NT_TRANSACT_GET_USER_QUOTA:
2773                 {
2774                         START_PROFILE(NT_transact_get_user_quota);
2775                         call_nt_transact_get_user_quota(
2776                                 conn, req,
2777                                 &state->setup, state->setup_count,
2778                                 &state->param, state->total_param,
2779                                 &state->data, state->total_data,
2780                                 state->max_data_return);
2781                         END_PROFILE(NT_transact_get_user_quota);
2782                         break;
2783                 }
2784
2785                 case NT_TRANSACT_SET_USER_QUOTA:
2786                 {
2787                         START_PROFILE(NT_transact_set_user_quota);
2788                         call_nt_transact_set_user_quota(
2789                                 conn, req,
2790                                 &state->setup, state->setup_count,
2791                                 &state->param, state->total_param,
2792                                 &state->data, state->total_data,
2793                                 state->max_data_return);
2794                         END_PROFILE(NT_transact_set_user_quota);
2795                         break;
2796                 }
2797 #endif /* HAVE_SYS_QUOTAS */
2798
2799                 default:
2800                         /* Error in request */
2801                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2802                                  "nttrans call\n", state->call));
2803                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2804                         return;
2805         }
2806         return;
2807 }
2808
2809 /****************************************************************************
2810  Reply to a SMBNTtrans.
2811 ****************************************************************************/
2812
2813 void reply_nttrans(struct smb_request *req)
2814 {
2815         connection_struct *conn = req->conn;
2816         uint32_t pscnt;
2817         uint32_t psoff;
2818         uint32_t dscnt;
2819         uint32_t dsoff;
2820         uint16_t function_code;
2821         NTSTATUS result;
2822         struct trans_state *state;
2823
2824         START_PROFILE(SMBnttrans);
2825
2826         if (req->wct < 19) {
2827                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2828                 END_PROFILE(SMBnttrans);
2829                 return;
2830         }
2831
2832         pscnt = IVAL(req->vwv+9, 1);
2833         psoff = IVAL(req->vwv+11, 1);
2834         dscnt = IVAL(req->vwv+13, 1);
2835         dsoff = IVAL(req->vwv+15, 1);
2836         function_code = SVAL(req->vwv+18, 0);
2837
2838         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2839                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2840                 END_PROFILE(SMBnttrans);
2841                 return;
2842         }
2843
2844         result = allow_new_trans(conn->pending_trans, req->mid);
2845         if (!NT_STATUS_IS_OK(result)) {
2846                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2847                 reply_nterror(req, result);
2848                 END_PROFILE(SMBnttrans);
2849                 return;
2850         }
2851
2852         if ((state = talloc(conn, struct trans_state)) == NULL) {
2853                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2854                 END_PROFILE(SMBnttrans);
2855                 return;
2856         }
2857
2858         state->cmd = SMBnttrans;
2859
2860         state->mid = req->mid;
2861         state->vuid = req->vuid;
2862         state->total_data = IVAL(req->vwv+3, 1);
2863         state->data = NULL;
2864         state->total_param = IVAL(req->vwv+1, 1);
2865         state->param = NULL;
2866         state->max_data_return = IVAL(req->vwv+7, 1);
2867         state->max_param_return = IVAL(req->vwv+5, 1);
2868
2869         /* setup count is in *words* */
2870         state->setup_count = 2*CVAL(req->vwv+17, 1);
2871         state->setup = NULL;
2872         state->call = function_code;
2873
2874         DEBUG(10, ("num_setup=%u, "
2875                    "param_total=%u, this_param=%u, max_param=%u, "
2876                    "data_total=%u, this_data=%u, max_data=%u, "
2877                    "param_offset=%u, data_offset=%u\n",
2878                    (unsigned)state->setup_count,
2879                    (unsigned)state->total_param, (unsigned)pscnt,
2880                    (unsigned)state->max_param_return,
2881                    (unsigned)state->total_data, (unsigned)dscnt,
2882                    (unsigned)state->max_data_return,
2883                    (unsigned)psoff, (unsigned)dsoff));
2884
2885         /*
2886          * All nttrans messages we handle have smb_wct == 19 +
2887          * state->setup_count.  Ensure this is so as a sanity check.
2888          */
2889
2890         if(req->wct != 19 + (state->setup_count/2)) {
2891                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2892                          req->wct, 19 + (state->setup_count/2)));
2893                 goto bad_param;
2894         }
2895
2896         /* Don't allow more than 128mb for each value. */
2897         if ((state->total_data > (1024*1024*128)) ||
2898             (state->total_param > (1024*1024*128))) {
2899                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2900                 END_PROFILE(SMBnttrans);
2901                 return;
2902         }
2903
2904         if ((dscnt > state->total_data) || (pscnt > state->total_param))
2905                 goto bad_param;
2906
2907         if (state->total_data)  {
2908
2909                 if (trans_oob(state->total_data, 0, dscnt)
2910                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2911                         goto bad_param;
2912                 }
2913
2914                 /* Can't use talloc here, the core routines do realloc on the
2915                  * params and data. */
2916                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2917                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
2918                                  "bytes !\n", (unsigned int)state->total_data));
2919                         TALLOC_FREE(state);
2920                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2921                         END_PROFILE(SMBnttrans);
2922                         return;
2923                 }
2924
2925                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2926         }
2927
2928         if (state->total_param) {
2929
2930                 if (trans_oob(state->total_param, 0, pscnt)
2931                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2932                         goto bad_param;
2933                 }
2934
2935                 /* Can't use talloc here, the core routines do realloc on the
2936                  * params and data. */
2937                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2938                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
2939                                  "bytes !\n", (unsigned int)state->total_param));
2940                         SAFE_FREE(state->data);
2941                         TALLOC_FREE(state);
2942                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2943                         END_PROFILE(SMBnttrans);
2944                         return;
2945                 }
2946
2947                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2948         }
2949
2950         state->received_data  = dscnt;
2951         state->received_param = pscnt;
2952
2953         if(state->setup_count > 0) {
2954                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2955                           state->setup_count));
2956
2957                 /*
2958                  * No overflow possible here, state->setup_count is an
2959                  * unsigned int, being filled by a single byte from
2960                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
2961                  * below is not necessary, it's here to clarify things. The
2962                  * validity of req->vwv and req->wct has been checked in
2963                  * init_smb_request already.
2964                  */
2965                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2966                         goto bad_param;
2967                 }
2968
2969                 state->setup = (uint16_t *)TALLOC(state, state->setup_count);
2970                 if (state->setup == NULL) {
2971                         DEBUG(0,("reply_nttrans : Out of memory\n"));
2972                         SAFE_FREE(state->data);
2973                         SAFE_FREE(state->param);
2974                         TALLOC_FREE(state);
2975                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2976                         END_PROFILE(SMBnttrans);
2977                         return;
2978                 }
2979
2980                 memcpy(state->setup, req->vwv+19, state->setup_count);
2981                 dump_data(10, (uint8_t *)state->setup, state->setup_count);
2982         }
2983
2984         if ((state->received_data == state->total_data) &&
2985             (state->received_param == state->total_param)) {
2986                 handle_nttrans(conn, state, req);
2987                 SAFE_FREE(state->param);
2988                 SAFE_FREE(state->data);
2989                 TALLOC_FREE(state);
2990                 END_PROFILE(SMBnttrans);
2991                 return;
2992         }
2993
2994         DLIST_ADD(conn->pending_trans, state);
2995
2996         /* We need to send an interim response then receive the rest
2997            of the parameter/data bytes */
2998         reply_outbuf(req, 0, 0);
2999         show_msg((char *)req->outbuf);
3000         END_PROFILE(SMBnttrans);
3001         return;
3002
3003   bad_param:
3004
3005         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3006         SAFE_FREE(state->data);
3007         SAFE_FREE(state->param);
3008         TALLOC_FREE(state);
3009         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3010         END_PROFILE(SMBnttrans);
3011         return;
3012 }
3013
3014 /****************************************************************************
3015  Reply to a SMBnttranss
3016  ****************************************************************************/
3017
3018 void reply_nttranss(struct smb_request *req)
3019 {
3020         connection_struct *conn = req->conn;
3021         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3022         struct trans_state *state;
3023
3024         START_PROFILE(SMBnttranss);
3025
3026         show_msg((const char *)req->inbuf);
3027
3028         /* Windows clients expect all replies to
3029            an NT transact secondary (SMBnttranss 0xA1)
3030            to have a command code of NT transact
3031            (SMBnttrans 0xA0). See bug #8989 for details. */
3032         req->cmd = SMBnttrans;
3033
3034         if (req->wct < 18) {
3035                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3036                 END_PROFILE(SMBnttranss);
3037                 return;
3038         }
3039
3040         for (state = conn->pending_trans; state != NULL;
3041              state = state->next) {
3042                 if (state->mid == req->mid) {
3043                         break;
3044                 }
3045         }
3046
3047         if ((state == NULL) || (state->cmd != SMBnttrans)) {
3048                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3049                 END_PROFILE(SMBnttranss);
3050                 return;
3051         }
3052
3053         /* Revise state->total_param and state->total_data in case they have
3054            changed downwards */
3055         if (IVAL(req->vwv+1, 1) < state->total_param) {
3056                 state->total_param = IVAL(req->vwv+1, 1);
3057         }
3058         if (IVAL(req->vwv+3, 1) < state->total_data) {
3059                 state->total_data = IVAL(req->vwv+3, 1);
3060         }
3061
3062         pcnt = IVAL(req->vwv+5, 1);
3063         poff = IVAL(req->vwv+7, 1);
3064         pdisp = IVAL(req->vwv+9, 1);
3065
3066         dcnt = IVAL(req->vwv+11, 1);
3067         doff = IVAL(req->vwv+13, 1);
3068         ddisp = IVAL(req->vwv+15, 1);
3069
3070         state->received_param += pcnt;
3071         state->received_data += dcnt;
3072
3073         if ((state->received_data > state->total_data) ||
3074             (state->received_param > state->total_param))
3075                 goto bad_param;
3076
3077         if (pcnt) {
3078                 if (trans_oob(state->total_param, pdisp, pcnt)
3079                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3080                         goto bad_param;
3081                 }
3082                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3083         }
3084
3085         if (dcnt) {
3086                 if (trans_oob(state->total_data, ddisp, dcnt)
3087                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3088                         goto bad_param;
3089                 }
3090                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3091         }
3092
3093         if ((state->received_param < state->total_param) ||
3094             (state->received_data < state->total_data)) {
3095                 END_PROFILE(SMBnttranss);
3096                 return;
3097         }
3098
3099         handle_nttrans(conn, state, req);
3100
3101         DLIST_REMOVE(conn->pending_trans, state);
3102         SAFE_FREE(state->data);
3103         SAFE_FREE(state->param);
3104         TALLOC_FREE(state);
3105         END_PROFILE(SMBnttranss);
3106         return;
3107
3108   bad_param:
3109
3110         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3111         DLIST_REMOVE(conn->pending_trans, state);
3112         SAFE_FREE(state->data);
3113         SAFE_FREE(state->param);
3114         TALLOC_FREE(state);
3115         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3116         END_PROFILE(SMBnttranss);
3117         return;
3118 }