source3/smbd/vfs.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    VFS initialisation and support functions
   5    Copyright (C) Tim Potter 1999
   6    Copyright (C) Alexander Bokovoy 2002
   7    Copyright (C) James Peach 2006
   8    Copyright (C) Volker Lendecke 2009
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22
  23    This work was sponsored by Optifacio Software Services, Inc.
  24 */
  25
  26 #include "includes.h"
  27 #include "system/filesys.h"
  28 #include "smbd/smbd.h"
  29 #include "smbd/globals.h"
  30 #include "memcache.h"
  31 #include "transfer_file.h"
  32 #include "ntioctl.h"
  33
  34 #undef DBGC_CLASS
  35 #define DBGC_CLASS DBGC_VFS
  36
  37 static_decl_vfs;
  38
  39 struct vfs_init_function_entry {
  40         char *name;
  41         struct vfs_init_function_entry *prev, *next;
  42         const struct vfs_fn_pointers *fns;
  43 };
  44
  45 /****************************************************************************
  46     maintain the list of available backends
  47 ****************************************************************************/
  48
  49 static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
  50 {
  51         struct vfs_init_function_entry *entry = backends;
  52
  53         DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
  54
  55         while(entry) {
  56                 if (strcmp(entry->name, name)==0) return entry;
  57                 entry = entry->next;
  58         }
  59
  60         return NULL;
  61 }
  62
  63 NTSTATUS smb_register_vfs(int version, const char *name,
  64                           const struct vfs_fn_pointers *fns)
  65 {
  66         struct vfs_init_function_entry *entry = backends;
  67
  68         if ((version != SMB_VFS_INTERFACE_VERSION)) {
  69                 DEBUG(0, ("Failed to register vfs module.\n"
  70                           "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
  71                           "current SMB_VFS_INTERFACE_VERSION is %d.\n"
  72                           "Please recompile against the current Samba Version!\n",
  73                           version, SMB_VFS_INTERFACE_VERSION));
  74                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
  75         }
  76
  77         if (!name || !name[0]) {
  78                 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
  79                 return NT_STATUS_INVALID_PARAMETER;
  80         }
  81
  82         if (vfs_find_backend_entry(name)) {
  83                 DEBUG(0,("VFS module %s already loaded!\n", name));
  84                 return NT_STATUS_OBJECT_NAME_COLLISION;
  85         }
  86
  87         entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
  88         entry->name = smb_xstrdup(name);
  89         entry->fns = fns;
  90
  91         DLIST_ADD(backends, entry);
  92         DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
  93         return NT_STATUS_OK;
  94 }
  95
  96 /****************************************************************************
  97   initialise default vfs hooks
  98 ****************************************************************************/
  99
 100 static void vfs_init_default(connection_struct *conn)
 101 {
 102         DEBUG(3, ("Initialising default vfs hooks\n"));
 103         vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
 104 }
 105
 106 /****************************************************************************
 107   initialise custom vfs hooks
 108  ****************************************************************************/
 109
 110 bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
 111 {
 112         char *module_path = NULL;
 113         char *module_name = NULL;
 114         char *module_param = NULL, *p;
 115         vfs_handle_struct *handle;
 116         const struct vfs_init_function_entry *entry;
 117
 118         if (!conn||!vfs_object||!vfs_object[0]) {
 119                 DEBUG(0, ("vfs_init_custom() called with NULL pointer or "
 120                           "empty vfs_object!\n"));
 121                 return False;
 122         }
 123
 124         if(!backends) {
 125                 static_init_vfs;
 126         }
 127
 128         DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
 129
 130         module_path = smb_xstrdup(vfs_object);
 131
 132         p = strchr_m(module_path, ':');
 133
 134         if (p) {
 135                 *p = 0;
 136                 module_param = p+1;
 137                 trim_char(module_param, ' ', ' ');
 138         }
 139
 140         trim_char(module_path, ' ', ' ');
 141
 142         module_name = smb_xstrdup(module_path);
 143
 144         if ((module_name[0] == '/') &&
 145             (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
 146
 147                 /*
 148                  * Extract the module name from the path. Just use the base
 149                  * name of the last path component.
 150                  */
 151
 152                 SAFE_FREE(module_name);
 153                 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
 154
 155                 p = strchr_m(module_name, '.');
 156
 157                 if (p != NULL) {
 158                         *p = '\0';
 159                 }
 160         }
 161
 162         /* First, try to load the module with the new module system */
 163         entry = vfs_find_backend_entry(module_name);
 164         if (!entry) {
 165                 NTSTATUS status;
 166
 167                 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
 168                           vfs_object));
 169
 170                 status = smb_probe_module("vfs", module_path);
 171                 if (!NT_STATUS_IS_OK(status)) {
 172                         DEBUG(0, ("error probing vfs module '%s': %s\n",
 173                                   module_path, nt_errstr(status)));
 174                         goto fail;
 175                 }
 176
 177                 entry = vfs_find_backend_entry(module_name);
 178                 if (!entry) {
 179                         DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
 180                         goto fail;
 181                 }
 182         }
 183
 184         DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
 185
 186         handle = talloc_zero(conn, vfs_handle_struct);
 187         if (!handle) {
 188                 DEBUG(0,("TALLOC_ZERO() failed!\n"));
 189                 goto fail;
 190         }
 191         handle->conn = conn;
 192         handle->fns = entry->fns;
 193         if (module_param) {
 194                 handle->param = talloc_strdup(conn, module_param);
 195         }
 196         DLIST_ADD(conn->vfs_handles, handle);
 197
 198         SAFE_FREE(module_path);
 199         SAFE_FREE(module_name);
 200         return True;
 201
 202  fail:
 203         SAFE_FREE(module_path);
 204         SAFE_FREE(module_name);
 205         return False;
 206 }
 207
 208 /*****************************************************************
 209  Allow VFS modules to extend files_struct with VFS-specific state.
 210  This will be ok for small numbers of extensions, but might need to
 211  be refactored if it becomes more widely used.
 212 ******************************************************************/
 213
 214 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
 215
 216 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
 217                                    files_struct *fsp, size_t ext_size,
 218                                    void (*destroy_fn)(void *p_data))
 219 {
 220         struct vfs_fsp_data *ext;
 221         void * ext_data;
 222
 223         /* Prevent VFS modules adding multiple extensions. */
 224         if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
 225                 return ext_data;
 226         }
 227
 228         ext = (struct vfs_fsp_data *)TALLOC_ZERO(
 229                 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
 230         if (ext == NULL) {
 231                 return NULL;
 232         }
 233
 234         ext->owner = handle;
 235         ext->next = fsp->vfs_extension;
 236         ext->destroy = destroy_fn;
 237         fsp->vfs_extension = ext;
 238         return EXT_DATA_AREA(ext);
 239 }
 240
 241 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
 242 {
 243         struct vfs_fsp_data *curr;
 244         struct vfs_fsp_data *prev;
 245
 246         for (curr = fsp->vfs_extension, prev = NULL;
 247              curr;
 248              prev = curr, curr = curr->next) {
 249                 if (curr->owner == handle) {
 250                     if (prev) {
 251                             prev->next = curr->next;
 252                     } else {
 253                             fsp->vfs_extension = curr->next;
 254                     }
 255                     if (curr->destroy) {
 256                             curr->destroy(EXT_DATA_AREA(curr));
 257                     }
 258                     TALLOC_FREE(curr);
 259                     return;
 260                 }
 261         }
 262 }
 263
 264 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
 265 {
 266         struct vfs_fsp_data *head;
 267
 268         for (head = fsp->vfs_extension; head; head = head->next) {
 269                 if (head->owner == handle) {
 270                         return head;
 271                 }
 272         }
 273
 274         return NULL;
 275 }
 276
 277 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
 278 {
 279         struct vfs_fsp_data *head;
 280
 281         head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
 282         if (head != NULL) {
 283                 return EXT_DATA_AREA(head);
 284         }
 285
 286         return NULL;
 287 }
 288
 289 #undef EXT_DATA_AREA
 290
 291 /*****************************************************************
 292  Generic VFS init.
 293 ******************************************************************/
 294
 295 bool smbd_vfs_init(connection_struct *conn)
 296 {
 297         const char **vfs_objects;
 298         unsigned int i = 0;
 299         int j = 0;
 300
 301         /* Normal share - initialise with disk access functions */
 302         vfs_init_default(conn);
 303         vfs_objects = lp_vfs_objects(SNUM(conn));
 304
 305         /* Override VFS functions if 'vfs object' was not specified*/
 306         if (!vfs_objects || !vfs_objects[0])
 307                 return True;
 308
 309         for (i=0; vfs_objects[i] ;) {
 310                 i++;
 311         }
 312
 313         for (j=i-1; j >= 0; j--) {
 314                 if (!vfs_init_custom(conn, vfs_objects[j])) {
 315                         DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
 316                         return False;
 317                 }
 318         }
 319         return True;
 320 }
 321
 322 /*******************************************************************
 323  Check if a file exists in the vfs.
 324 ********************************************************************/
 325
 326 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
 327 {
 328         /* Only return OK if stat was successful and S_ISREG */
 329         if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
 330             S_ISREG(smb_fname->st.st_ex_mode)) {
 331                 return NT_STATUS_OK;
 332         }
 333
 334         return NT_STATUS_OBJECT_NAME_NOT_FOUND;
 335 }
 336
 337 /****************************************************************************
 338  Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
 339 ****************************************************************************/
 340
 341 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
 342 {
 343         size_t total=0;
 344
 345         while (total < byte_count)
 346         {
 347                 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
 348                                            byte_count - total);
 349
 350                 if (ret == 0) return total;
 351                 if (ret == -1) {
 352                         if (errno == EINTR)
 353                                 continue;
 354                         else
 355                                 return -1;
 356                 }
 357                 total += ret;
 358         }
 359         return (ssize_t)total;
 360 }
 361
 362 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
 363                 size_t byte_count, SMB_OFF_T offset)
 364 {
 365         size_t total=0;
 366
 367         while (total < byte_count)
 368         {
 369                 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
 370                                         byte_count - total, offset + total);
 371
 372                 if (ret == 0) return total;
 373                 if (ret == -1) {
 374                         if (errno == EINTR)
 375                                 continue;
 376                         else
 377                                 return -1;
 378                 }
 379                 total += ret;
 380         }
 381         return (ssize_t)total;
 382 }
 383
 384 /****************************************************************************
 385  Write data to a fd on the vfs.
 386 ****************************************************************************/
 387
 388 ssize_t vfs_write_data(struct smb_request *req,
 389                         files_struct *fsp,
 390                         const char *buffer,
 391                         size_t N)
 392 {
 393         size_t total=0;
 394         ssize_t ret;
 395
 396         if (req && req->unread_bytes) {
 397                 SMB_ASSERT(req->unread_bytes == N);
 398                 /* VFS_RECVFILE must drain the socket
 399                  * before returning. */
 400                 req->unread_bytes = 0;
 401                 return SMB_VFS_RECVFILE(req->sconn->sock,
 402                                         fsp,
 403                                         (SMB_OFF_T)-1,
 404                                         N);
 405         }
 406
 407         while (total < N) {
 408                 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
 409
 410                 if (ret == -1)
 411                         return -1;
 412                 if (ret == 0)
 413                         return total;
 414
 415                 total += ret;
 416         }
 417         return (ssize_t)total;
 418 }
 419
 420 ssize_t vfs_pwrite_data(struct smb_request *req,
 421                         files_struct *fsp,
 422                         const char *buffer,
 423                         size_t N,
 424                         SMB_OFF_T offset)
 425 {
 426         size_t total=0;
 427         ssize_t ret;
 428
 429         if (req && req->unread_bytes) {
 430                 SMB_ASSERT(req->unread_bytes == N);
 431                 /* VFS_RECVFILE must drain the socket
 432                  * before returning. */
 433                 req->unread_bytes = 0;
 434                 return SMB_VFS_RECVFILE(req->sconn->sock,
 435                                         fsp,
 436                                         offset,
 437                                         N);
 438         }
 439
 440         while (total < N) {
 441                 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
 442                                      offset + total);
 443
 444                 if (ret == -1)
 445                         return -1;
 446                 if (ret == 0)
 447                         return total;
 448
 449                 total += ret;
 450         }
 451         return (ssize_t)total;
 452 }
 453 /****************************************************************************
 454  An allocate file space call using the vfs interface.
 455  Allocates space for a file from a filedescriptor.
 456  Returns 0 on success, -1 on failure.
 457 ****************************************************************************/
 458
 459 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
 460 {
 461         int ret;
 462         connection_struct *conn = fsp->conn;
 463         uint64_t space_avail;
 464         uint64_t bsize,dfree,dsize;
 465         NTSTATUS status;
 466
 467         /*
 468          * Actually try and commit the space on disk....
 469          */
 470
 471         DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
 472                   fsp_str_dbg(fsp), (double)len));
 473
 474         if (((SMB_OFF_T)len) < 0) {
 475                 DEBUG(0,("vfs_allocate_file_space: %s negative len "
 476                          "requested.\n", fsp_str_dbg(fsp)));
 477                 errno = EINVAL;
 478                 return -1;
 479         }
 480
 481         status = vfs_stat_fsp(fsp);
 482         if (!NT_STATUS_IS_OK(status)) {
 483                 return -1;
 484         }
 485
 486         if (len == (uint64_t)fsp->fsp_name->st.st_ex_size)
 487                 return 0;
 488
 489         if (len < (uint64_t)fsp->fsp_name->st.st_ex_size) {
 490                 /* Shrink - use ftruncate. */
 491
 492                 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
 493                           "size %.0f\n", fsp_str_dbg(fsp),
 494                           (double)fsp->fsp_name->st.st_ex_size));
 495
 496                 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
 497
 498                 flush_write_cache(fsp, SIZECHANGE_FLUSH);
 499                 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
 500                         set_filelen_write_cache(fsp, len);
 501                 }
 502
 503                 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
 504
 505                 return ret;
 506         }
 507
 508         if (!lp_strict_allocate(SNUM(fsp->conn)))
 509                 return 0;
 510
 511         /* Grow - we need to test if we have enough space. */
 512
 513         contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
 514
 515         /* See if we have a syscall that will allocate beyond end-of-file
 516            without changing EOF. */
 517         ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_KEEP_SIZE, 0, len);
 518
 519         contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
 520
 521         if (ret == 0) {
 522                 /* We changed the allocation size on disk, but not
 523                    EOF - exactly as required. We're done ! */
 524                 return 0;
 525         }
 526
 527         len -= fsp->fsp_name->st.st_ex_size;
 528         len /= 1024; /* Len is now number of 1k blocks needed. */
 529         space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
 530                                      &bsize, &dfree, &dsize);
 531         if (space_avail == (uint64_t)-1) {
 532                 return -1;
 533         }
 534
 535         DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
 536                   "needed blocks = %.0f, space avail = %.0f\n",
 537                   fsp_str_dbg(fsp), (double)fsp->fsp_name->st.st_ex_size, (double)len,
 538                   (double)space_avail));
 539
 540         if (len > space_avail) {
 541                 errno = ENOSPC;
 542                 return -1;
 543         }
 544
 545         return 0;
 546 }
 547
 548 /****************************************************************************
 549  A vfs set_filelen call.
 550  set the length of a file from a filedescriptor.
 551  Returns 0 on success, -1 on failure.
 552 ****************************************************************************/
 553
 554 int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
 555 {
 556         int ret;
 557
 558         contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
 559
 560         DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
 561                   fsp_str_dbg(fsp), (double)len));
 562         flush_write_cache(fsp, SIZECHANGE_FLUSH);
 563         if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
 564                 set_filelen_write_cache(fsp, len);
 565                 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
 566                              FILE_NOTIFY_CHANGE_SIZE
 567                              | FILE_NOTIFY_CHANGE_ATTRIBUTES,
 568                              fsp->fsp_name->base_name);
 569         }
 570
 571         contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
 572
 573         return ret;
 574 }
 575
 576 /****************************************************************************
 577  A slow version of fallocate. Fallback code if SMB_VFS_FALLOCATE
 578  fails. Needs to be outside of the default version of SMB_VFS_FALLOCATE
 579  as this is also called from the default SMB_VFS_FTRUNCATE code.
 580  Always extends the file size.
 581  Returns 0 on success, errno on failure.
 582 ****************************************************************************/
 583
 584 #define SPARSE_BUF_WRITE_SIZE (32*1024)
 585
 586 int vfs_slow_fallocate(files_struct *fsp, SMB_OFF_T offset, SMB_OFF_T len)
 587 {
 588         ssize_t pwrite_ret;
 589         size_t total = 0;
 590
 591         if (!sparse_buf) {
 592                 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
 593                 if (!sparse_buf) {
 594                         errno = ENOMEM;
 595                         return ENOMEM;
 596                 }
 597         }
 598
 599         while (total < len) {
 600                 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (len - total));
 601
 602                 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
 603                 if (pwrite_ret == -1) {
 604                         DEBUG(10,("vfs_slow_fallocate: SMB_VFS_PWRITE for file "
 605                                   "%s failed with error %s\n",
 606                                   fsp_str_dbg(fsp), strerror(errno)));
 607                         return errno;
 608                 }
 609                 total += pwrite_ret;
 610         }
 611
 612         return 0;
 613 }
 614
 615 /****************************************************************************
 616  A vfs fill sparse call.
 617  Writes zeros from the end of file to len, if len is greater than EOF.
 618  Used only by strict_sync.
 619  Returns 0 on success, -1 on failure.
 620 ****************************************************************************/
 621
 622 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
 623 {
 624         int ret;
 625         NTSTATUS status;
 626         SMB_OFF_T offset;
 627         size_t num_to_write;
 628
 629         status = vfs_stat_fsp(fsp);
 630         if (!NT_STATUS_IS_OK(status)) {
 631                 return -1;
 632         }
 633
 634         if (len <= fsp->fsp_name->st.st_ex_size) {
 635                 return 0;
 636         }
 637
 638 #ifdef S_ISFIFO
 639         if (S_ISFIFO(fsp->fsp_name->st.st_ex_mode)) {
 640                 return 0;
 641         }
 642 #endif
 643
 644         DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
 645                   "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
 646                   (double)fsp->fsp_name->st.st_ex_size, (double)len,
 647                   (double)(len - fsp->fsp_name->st.st_ex_size)));
 648
 649         contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
 650
 651         flush_write_cache(fsp, SIZECHANGE_FLUSH);
 652
 653         offset = fsp->fsp_name->st.st_ex_size;
 654         num_to_write = len - fsp->fsp_name->st.st_ex_size;
 655
 656         /* Only do this on non-stream file handles. */
 657         if (fsp->base_fsp == NULL) {
 658                 /* for allocation try fallocate first. This can fail on some
 659                  * platforms e.g. when the filesystem doesn't support it and no
 660                  * emulation is being done by the libc (like on AIX with JFS1). In that
 661                  * case we do our own emulation. fallocate implementations can
 662                  * return ENOTSUP or EINVAL in cases like that. */
 663                 ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_EXTEND_SIZE,
 664                                 offset, num_to_write);
 665                 if (ret == ENOSPC) {
 666                         errno = ENOSPC;
 667                         ret = -1;
 668                         goto out;
 669                 }
 670                 if (ret == 0) {
 671                         goto out;
 672                 }
 673                 DEBUG(10,("vfs_fill_sparse: SMB_VFS_FALLOCATE failed with "
 674                         "error %d. Falling back to slow manual allocation\n", ret));
 675         }
 676
 677         ret = vfs_slow_fallocate(fsp, offset, num_to_write);
 678         if (ret != 0) {
 679                 errno = ret;
 680                 ret = -1;
 681         }
 682
 683  out:
 684
 685         if (ret == 0) {
 686                 set_filelen_write_cache(fsp, len);
 687         }
 688
 689         contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
 690         return ret;
 691 }
 692
 693 /****************************************************************************
 694  Transfer some data (n bytes) between two file_struct's.
 695 ****************************************************************************/
 696
 697 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
 698 {
 699         struct files_struct *fsp = (struct files_struct *)file;
 700
 701         return SMB_VFS_READ(fsp, buf, len);
 702 }
 703
 704 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
 705 {
 706         struct files_struct *fsp = (struct files_struct *)file;
 707
 708         return SMB_VFS_WRITE(fsp, buf, len);
 709 }
 710
 711 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
 712 {
 713         return transfer_file_internal((void *)in, (void *)out, n,
 714                                       vfs_read_fn, vfs_write_fn);
 715 }
 716
 717 /*******************************************************************
 718  A vfs_readdir wrapper which just returns the file name.
 719 ********************************************************************/
 720
 721 const char *vfs_readdirname(connection_struct *conn, void *p,
 722                             SMB_STRUCT_STAT *sbuf, char **talloced)
 723 {
 724         SMB_STRUCT_DIRENT *ptr= NULL;
 725         const char *dname;
 726         char *translated;
 727         NTSTATUS status;
 728
 729         if (!p)
 730                 return(NULL);
 731
 732         ptr = SMB_VFS_READDIR(conn, (SMB_STRUCT_DIR *)p, sbuf);
 733         if (!ptr)
 734                 return(NULL);
 735
 736         dname = ptr->d_name;
 737
 738
 739 #ifdef NEXT2
 740         if (telldir(p) < 0)
 741                 return(NULL);
 742 #endif
 743
 744 #ifdef HAVE_BROKEN_READDIR_NAME
 745         /* using /usr/ucb/cc is BAD */
 746         dname = dname - 2;
 747 #endif
 748
 749         status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
 750                                         talloc_tos(), &translated);
 751         if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
 752                 *talloced = NULL;
 753                 return dname;
 754         }
 755         *talloced = translated;
 756         if (!NT_STATUS_IS_OK(status)) {
 757                 return NULL;
 758         }
 759         return translated;
 760 }
 761
 762 /*******************************************************************
 763  A wrapper for vfs_chdir().
 764 ********************************************************************/
 765
 766 int vfs_ChDir(connection_struct *conn, const char *path)
 767 {
 768         int res;
 769
 770         if (!LastDir) {
 771                 LastDir = SMB_STRDUP("");
 772         }
 773
 774         if (strcsequal(path,"."))
 775                 return(0);
 776
 777         if (*path == '/' && strcsequal(LastDir,path))
 778                 return(0);
 779
 780         DEBUG(4,("vfs_ChDir to %s\n",path));
 781
 782         res = SMB_VFS_CHDIR(conn,path);
 783         if (!res) {
 784                 SAFE_FREE(LastDir);
 785                 LastDir = SMB_STRDUP(path);
 786         }
 787         return(res);
 788 }
 789
 790 /*******************************************************************
 791  Return the absolute current directory path - given a UNIX pathname.
 792  Note that this path is returned in DOS format, not UNIX
 793  format. Note this can be called with conn == NULL.
 794 ********************************************************************/
 795
 796 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
 797 {
 798         char *current_dir = NULL;
 799         char *result = NULL;
 800         DATA_BLOB cache_value;
 801         struct file_id key;
 802         struct smb_filename *smb_fname_dot = NULL;
 803         struct smb_filename *smb_fname_full = NULL;
 804         NTSTATUS status;
 805
 806         if (!lp_getwd_cache()) {
 807                 goto nocache;
 808         }
 809
 810         status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
 811                                             &smb_fname_dot);
 812         if (!NT_STATUS_IS_OK(status)) {
 813                 errno = map_errno_from_nt_status(status);
 814                 goto out;
 815         }
 816
 817         if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
 818                 /*
 819                  * Known to fail for root: the directory may be NFS-mounted
 820                  * and exported with root_squash (so has no root access).
 821                  */
 822                 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
 823                          "(NFS problem ?)\n", strerror(errno) ));
 824                 goto nocache;
 825         }
 826
 827         key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
 828
 829         if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
 830                              data_blob_const(&key, sizeof(key)),
 831                              &cache_value)) {
 832                 goto nocache;
 833         }
 834
 835         SMB_ASSERT((cache_value.length > 0)
 836                    && (cache_value.data[cache_value.length-1] == '\0'));
 837
 838         status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
 839                                             NULL, NULL, &smb_fname_full);
 840         if (!NT_STATUS_IS_OK(status)) {
 841                 errno = map_errno_from_nt_status(status);
 842                 goto out;
 843         }
 844
 845         if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
 846             (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
 847             (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
 848             (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
 849                 /*
 850                  * Ok, we're done
 851                  */
 852                 result = talloc_strdup(ctx, smb_fname_full->base_name);
 853                 if (result == NULL) {
 854                         errno = ENOMEM;
 855                 }
 856                 goto out;
 857         }
 858
 859  nocache:
 860
 861         /*
 862          * We don't have the information to hand so rely on traditional
 863          * methods. The very slow getcwd, which spawns a process on some
 864          * systems, or the not quite so bad getwd.
 865          */
 866
 867         current_dir = SMB_VFS_GETWD(conn);
 868         if (current_dir == NULL) {
 869                 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
 870                           strerror(errno)));
 871                 goto out;
 872         }
 873
 874         if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
 875                 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
 876
 877                 memcache_add(smbd_memcache(), GETWD_CACHE,
 878                              data_blob_const(&key, sizeof(key)),
 879                              data_blob_const(current_dir,
 880                                                 strlen(current_dir)+1));
 881         }
 882
 883         result = talloc_strdup(ctx, current_dir);
 884         if (result == NULL) {
 885                 errno = ENOMEM;
 886         }
 887
 888  out:
 889         TALLOC_FREE(smb_fname_dot);
 890         TALLOC_FREE(smb_fname_full);
 891         SAFE_FREE(current_dir);
 892         return result;
 893 }
 894
 895 /*******************************************************************
 896  Reduce a file name, removing .. elements and checking that
 897  it is below dir in the heirachy. This uses realpath.
 898 ********************************************************************/
 899
 900 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
 901 {
 902         char *resolved_name = NULL;
 903         bool allow_symlinks = true;
 904         bool allow_widelinks = false;
 905
 906         DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
 907
 908         resolved_name = SMB_VFS_REALPATH(conn,fname);
 909
 910         if (!resolved_name) {
 911                 switch (errno) {
 912                         case ENOTDIR:
 913                                 DEBUG(3,("check_reduced_name: Component not a "
 914                                          "directory in getting realpath for "
 915                                          "%s\n", fname));
 916                                 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
 917                         case ENOENT:
 918                         {
 919                                 TALLOC_CTX *ctx = talloc_tos();
 920                                 char *dir_name = NULL;
 921                                 const char *last_component = NULL;
 922                                 char *new_name = NULL;
 923
 924                                 /* Last component didn't exist.
 925                                    Remove it and try and canonicalise
 926                                    the directory name. */
 927                                 if (!parent_dirname(ctx, fname,
 928                                                 &dir_name,
 929                                                 &last_component)) {
 930                                         return NT_STATUS_NO_MEMORY;
 931                                 }
 932
 933                                 resolved_name = SMB_VFS_REALPATH(conn,dir_name);
 934                                 if (!resolved_name) {
 935                                         NTSTATUS status = map_nt_error_from_unix(errno);
 936
 937                                         if (errno == ENOENT || errno == ENOTDIR) {
 938                                                 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
 939                                         }
 940
 941                                         DEBUG(3,("check_reduce_name: "
 942                                                  "couldn't get realpath for "
 943                                                  "%s (%s)\n",
 944                                                 fname,
 945                                                 nt_errstr(status)));
 946                                         return status;
 947                                 }
 948                                 new_name = talloc_asprintf(ctx,
 949                                                 "%s/%s",
 950                                                 resolved_name,
 951                                                 last_component);
 952                                 if (!new_name) {
 953                                         return NT_STATUS_NO_MEMORY;
 954                                 }
 955                                 SAFE_FREE(resolved_name);
 956                                 resolved_name = SMB_STRDUP(new_name);
 957                                 if (!resolved_name) {
 958                                         return NT_STATUS_NO_MEMORY;
 959                                 }
 960                                 break;
 961                         }
 962                         default:
 963                                 DEBUG(3,("check_reduced_name: couldn't get "
 964                                          "realpath for %s\n", fname));
 965                                 return map_nt_error_from_unix(errno);
 966                 }
 967         }
 968
 969         DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
 970                   resolved_name));
 971
 972         if (*resolved_name != '/') {
 973                 DEBUG(0,("check_reduced_name: realpath doesn't return "
 974                          "absolute paths !\n"));
 975                 SAFE_FREE(resolved_name);
 976                 return NT_STATUS_OBJECT_NAME_INVALID;
 977         }
 978
 979         allow_widelinks = lp_widelinks(SNUM(conn));
 980         allow_symlinks = lp_symlinks(SNUM(conn));
 981
 982         /* Common widelinks and symlinks checks. */
 983         if (!allow_widelinks || !allow_symlinks) {
 984                 const char *conn_rootdir;
 985                 size_t rootdir_len;
 986
 987                 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
 988                 if (conn_rootdir == NULL) {
 989                         DEBUG(2, ("check_reduced_name: Could not get "
 990                                 "conn_rootdir\n"));
 991                         SAFE_FREE(resolved_name);
 992                         return NT_STATUS_ACCESS_DENIED;
 993                 }
 994
 995                 rootdir_len = strlen(conn_rootdir);
 996                 if (strncmp(conn_rootdir, resolved_name,
 997                                 rootdir_len) != 0) {
 998                         DEBUG(2, ("check_reduced_name: Bad access "
 999                                 "attempt: %s is a symlink outside the "
1000                                 "share path\n", fname));
1001                         DEBUGADD(2, ("conn_rootdir =%s\n", conn_rootdir));
1002                         DEBUGADD(2, ("resolved_name=%s\n", resolved_name));
1003                         SAFE_FREE(resolved_name);
1004                         return NT_STATUS_ACCESS_DENIED;
1005                 }
1006
1007                 /* Extra checks if all symlinks are disallowed. */
1008                 if (!allow_symlinks) {
1009                         /* fname can't have changed in resolved_path. */
1010                         const char *p = &resolved_name[rootdir_len];
1011
1012                         /* *p can be '\0' if fname was "." */
1013                         if (*p == '\0' && ISDOT(fname)) {
1014                                 goto out;
1015                         }
1016
1017                         if (*p != '/') {
1018                                 DEBUG(2, ("check_reduced_name: logic error (%c) "
1019                                         "in resolved_name: %s\n",
1020                                         *p,
1021                                         fname));
1022                                 SAFE_FREE(resolved_name);
1023                                 return NT_STATUS_ACCESS_DENIED;
1024                         }
1025
1026                         p++;
1027                         if (strcmp(fname, p)!=0) {
1028                                 DEBUG(2, ("check_reduced_name: Bad access "
1029                                         "attempt: %s is a symlink\n",
1030                                         fname));
1031                                 SAFE_FREE(resolved_name);
1032                                 return NT_STATUS_ACCESS_DENIED;
1033                         }
1034                 }
1035         }
1036
1037   out:
1038
1039         DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
1040                  resolved_name));
1041         SAFE_FREE(resolved_name);
1042         return NT_STATUS_OK;
1043 }
1044
1045 /**
1046  * XXX: This is temporary and there should be no callers of this once
1047  * smb_filename is plumbed through all path based operations.
1048  */
1049 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1050                        SMB_STRUCT_STAT *psbuf)
1051 {
1052         struct smb_filename *smb_fname = NULL;
1053         NTSTATUS status;
1054         int ret;
1055
1056         status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1057                                                   &smb_fname);
1058         if (!NT_STATUS_IS_OK(status)) {
1059                 errno = map_errno_from_nt_status(status);
1060                 return -1;
1061         }
1062
1063         if (lp_posix_pathnames()) {
1064                 ret = SMB_VFS_LSTAT(conn, smb_fname);
1065         } else {
1066                 ret = SMB_VFS_STAT(conn, smb_fname);
1067         }
1068
1069         if (ret != -1) {
1070                 *psbuf = smb_fname->st;
1071         }
1072
1073         TALLOC_FREE(smb_fname);
1074         return ret;
1075 }
1076
1077 /**
1078  * XXX: This is temporary and there should be no callers of this once
1079  * smb_filename is plumbed through all path based operations.
1080  */
1081 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1082                         SMB_STRUCT_STAT *psbuf)
1083 {
1084         struct smb_filename *smb_fname = NULL;
1085         NTSTATUS status;
1086         int ret;
1087
1088         status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1089                                                   &smb_fname);
1090         if (!NT_STATUS_IS_OK(status)) {
1091                 errno = map_errno_from_nt_status(status);
1092                 return -1;
1093         }
1094
1095         ret = SMB_VFS_LSTAT(conn, smb_fname);
1096         if (ret != -1) {
1097                 *psbuf = smb_fname->st;
1098         }
1099
1100         TALLOC_FREE(smb_fname);
1101         return ret;
1102 }
1103
1104 /**
1105  * Ensure LSTAT is called for POSIX paths.
1106  */
1107
1108 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1109 {
1110         int ret;
1111
1112         if(fsp->fh->fd == -1) {
1113                 if (fsp->posix_open) {
1114                         ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1115                 } else {
1116                         ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1117                 }
1118                 if (ret == -1) {
1119                         return map_nt_error_from_unix(errno);
1120                 }
1121         } else {
1122                 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1123                         return map_nt_error_from_unix(errno);
1124                 }
1125         }
1126         return NT_STATUS_OK;
1127 }
1128
1129 /**
1130  * Initialize num_streams and streams, then call VFS op streaminfo
1131  */
1132 NTSTATUS vfs_streaminfo(connection_struct *conn,
1133                         struct files_struct *fsp,
1134                         const char *fname,
1135                         TALLOC_CTX *mem_ctx,
1136                         unsigned int *num_streams,
1137                         struct stream_struct **streams)
1138 {
1139         *num_streams = 0;
1140         *streams = NULL;
1141         return SMB_VFS_STREAMINFO(conn, fsp, fname, mem_ctx, num_streams, streams);
1142 }
1143
1144 /*
1145   generate a file_id from a stat structure
1146  */
1147 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1148 {
1149         return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1150 }
1151
1152 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1153                          const char *service, const char *user)
1154 {
1155         VFS_FIND(connect);
1156         return handle->fns->connect_fn(handle, service, user);
1157 }
1158
1159 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1160 {
1161         VFS_FIND(disconnect);
1162         handle->fns->disconnect_fn(handle);
1163 }
1164
1165 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1166                                 const char *path, bool small_query,
1167                                 uint64_t *bsize, uint64_t *dfree,
1168                                 uint64_t *dsize)
1169 {
1170         VFS_FIND(disk_free);
1171         return handle->fns->disk_free_fn(handle, path, small_query, bsize,
1172                                          dfree, dsize);
1173 }
1174
1175 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1176                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1177                            SMB_DISK_QUOTA *qt)
1178 {
1179         VFS_FIND(get_quota);
1180         return handle->fns->get_quota_fn(handle, qtype, id, qt);
1181 }
1182
1183 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1184                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1185                            SMB_DISK_QUOTA *qt)
1186 {
1187         VFS_FIND(set_quota);
1188         return handle->fns->set_quota_fn(handle, qtype, id, qt);
1189 }
1190
1191 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1192                                       struct files_struct *fsp,
1193                                       struct shadow_copy_data *shadow_copy_data,
1194                                       bool labels)
1195 {
1196         VFS_FIND(get_shadow_copy_data);
1197         return handle->fns->get_shadow_copy_data_fn(handle, fsp,
1198                                                     shadow_copy_data,
1199                                                     labels);
1200 }
1201 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1202                          struct vfs_statvfs_struct *statbuf)
1203 {
1204         VFS_FIND(statvfs);
1205         return handle->fns->statvfs_fn(handle, path, statbuf);
1206 }
1207
1208 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1209                         enum timestamp_set_resolution *p_ts_res)
1210 {
1211         VFS_FIND(fs_capabilities);
1212         return handle->fns->fs_capabilities_fn(handle, p_ts_res);
1213 }
1214
1215 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
1216                                         struct dfs_GetDFSReferral *r)
1217 {
1218         VFS_FIND(get_dfs_referrals);
1219         return handle->fns->get_dfs_referrals_fn(handle, r);
1220 }
1221
1222 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1223                                      const char *fname, const char *mask,
1224                                      uint32 attributes)
1225 {
1226         VFS_FIND(opendir);
1227         return handle->fns->opendir_fn(handle, fname, mask, attributes);
1228 }
1229
1230 SMB_STRUCT_DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1231                                         struct files_struct *fsp,
1232                                         const char *mask,
1233                                         uint32 attributes)
1234 {
1235         VFS_FIND(fdopendir);
1236         return handle->fns->fdopendir_fn(handle, fsp, mask, attributes);
1237 }
1238
1239 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1240                                               SMB_STRUCT_DIR *dirp,
1241                                               SMB_STRUCT_STAT *sbuf)
1242 {
1243         VFS_FIND(readdir);
1244         return handle->fns->readdir_fn(handle, dirp, sbuf);
1245 }
1246
1247 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1248                           SMB_STRUCT_DIR *dirp, long offset)
1249 {
1250         VFS_FIND(seekdir);
1251         handle->fns->seekdir_fn(handle, dirp, offset);
1252 }
1253
1254 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1255                           SMB_STRUCT_DIR *dirp)
1256 {
1257         VFS_FIND(telldir);
1258         return handle->fns->telldir_fn(handle, dirp);
1259 }
1260
1261 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1262                              SMB_STRUCT_DIR *dirp)
1263 {
1264         VFS_FIND(rewind_dir);
1265         handle->fns->rewind_dir_fn(handle, dirp);
1266 }
1267
1268 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1269                        mode_t mode)
1270 {
1271         VFS_FIND(mkdir);
1272         return handle->fns->mkdir_fn(handle, path, mode);
1273 }
1274
1275 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1276 {
1277         VFS_FIND(rmdir);
1278         return handle->fns->rmdir_fn(handle, path);
1279 }
1280
1281 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1282                           SMB_STRUCT_DIR *dir)
1283 {
1284         VFS_FIND(closedir);
1285         return handle->fns->closedir_fn(handle, dir);
1286 }
1287
1288 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1289                                  SMB_STRUCT_DIR *dirp)
1290 {
1291         VFS_FIND(init_search_op);
1292         handle->fns->init_search_op_fn(handle, dirp);
1293 }
1294
1295 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1296                       struct smb_filename *smb_fname, struct files_struct *fsp,
1297                       int flags, mode_t mode)
1298 {
1299         VFS_FIND(open);
1300         return handle->fns->open_fn(handle, smb_fname, fsp, flags, mode);
1301 }
1302
1303 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1304                                   struct smb_request *req,
1305                                   uint16_t root_dir_fid,
1306                                   struct smb_filename *smb_fname,
1307                                   uint32_t access_mask,
1308                                   uint32_t share_access,
1309                                   uint32_t create_disposition,
1310                                   uint32_t create_options,
1311                                   uint32_t file_attributes,
1312                                   uint32_t oplock_request,
1313                                   uint64_t allocation_size,
1314                                   uint32_t private_flags,
1315                                   struct security_descriptor *sd,
1316                                   struct ea_list *ea_list,
1317                                   files_struct **result,
1318                                   int *pinfo)
1319 {
1320         VFS_FIND(create_file);
1321         return handle->fns->create_file_fn(
1322                 handle, req, root_dir_fid, smb_fname, access_mask,
1323                 share_access, create_disposition, create_options,
1324                 file_attributes, oplock_request, allocation_size,
1325                 private_flags, sd, ea_list,
1326                 result, pinfo);
1327 }
1328
1329 int smb_vfs_call_close(struct vfs_handle_struct *handle,
1330                        struct files_struct *fsp)
1331 {
1332         VFS_FIND(close);
1333         return handle->fns->close_fn(handle, fsp);
1334 }
1335
1336 ssize_t smb_vfs_call_read(struct vfs_handle_struct *handle,
1337                           struct files_struct *fsp, void *data, size_t n)
1338 {
1339         VFS_FIND(read);
1340         return handle->fns->read_fn(handle, fsp, data, n);
1341 }
1342
1343 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1344                            struct files_struct *fsp, void *data, size_t n,
1345                            SMB_OFF_T offset)
1346 {
1347         VFS_FIND(pread);
1348         return handle->fns->pread_fn(handle, fsp, data, n, offset);
1349 }
1350
1351 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1352                            struct files_struct *fsp, const void *data,
1353                            size_t n)
1354 {
1355         VFS_FIND(write);
1356         return handle->fns->write_fn(handle, fsp, data, n);
1357 }
1358
1359 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1360                             struct files_struct *fsp, const void *data,
1361                             size_t n, SMB_OFF_T offset)
1362 {
1363         VFS_FIND(pwrite);
1364         return handle->fns->pwrite_fn(handle, fsp, data, n, offset);
1365 }
1366
1367 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1368                              struct files_struct *fsp, SMB_OFF_T offset,
1369                              int whence)
1370 {
1371         VFS_FIND(lseek);
1372         return handle->fns->lseek_fn(handle, fsp, offset, whence);
1373 }
1374
1375 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1376                               files_struct *fromfsp, const DATA_BLOB *header,
1377                               SMB_OFF_T offset, size_t count)
1378 {
1379         VFS_FIND(sendfile);
1380         return handle->fns->sendfile_fn(handle, tofd, fromfsp, header, offset,
1381                                         count);
1382 }
1383
1384 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1385                               files_struct *tofsp, SMB_OFF_T offset,
1386                               size_t count)
1387 {
1388         VFS_FIND(recvfile);
1389         return handle->fns->recvfile_fn(handle, fromfd, tofsp, offset, count);
1390 }
1391
1392 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1393                         const struct smb_filename *smb_fname_src,
1394                         const struct smb_filename *smb_fname_dst)
1395 {
1396         VFS_FIND(rename);
1397         return handle->fns->rename_fn(handle, smb_fname_src, smb_fname_dst);
1398 }
1399
1400 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1401                        struct files_struct *fsp)
1402 {
1403         VFS_FIND(fsync);
1404         return handle->fns->fsync_fn(handle, fsp);
1405 }
1406
1407 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1408                       struct smb_filename *smb_fname)
1409 {
1410         VFS_FIND(stat);
1411         return handle->fns->stat_fn(handle, smb_fname);
1412 }
1413
1414 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1415                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1416 {
1417         VFS_FIND(fstat);
1418         return handle->fns->fstat_fn(handle, fsp, sbuf);
1419 }
1420
1421 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1422                        struct smb_filename *smb_filename)
1423 {
1424         VFS_FIND(lstat);
1425         return handle->fns->lstat_fn(handle, smb_filename);
1426 }
1427
1428 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1429                                      struct files_struct *fsp,
1430                                      const SMB_STRUCT_STAT *sbuf)
1431 {
1432         VFS_FIND(get_alloc_size);
1433         return handle->fns->get_alloc_size_fn(handle, fsp, sbuf);
1434 }
1435
1436 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1437                         const struct smb_filename *smb_fname)
1438 {
1439         VFS_FIND(unlink);
1440         return handle->fns->unlink_fn(handle, smb_fname);
1441 }
1442
1443 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1444                        mode_t mode)
1445 {
1446         VFS_FIND(chmod);
1447         return handle->fns->chmod_fn(handle, path, mode);
1448 }
1449
1450 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1451                         struct files_struct *fsp, mode_t mode)
1452 {
1453         VFS_FIND(fchmod);
1454         return handle->fns->fchmod_fn(handle, fsp, mode);
1455 }
1456
1457 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1458                        uid_t uid, gid_t gid)
1459 {
1460         VFS_FIND(chown);
1461         return handle->fns->chown_fn(handle, path, uid, gid);
1462 }
1463
1464 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1465                         struct files_struct *fsp, uid_t uid, gid_t gid)
1466 {
1467         VFS_FIND(fchown);
1468         return handle->fns->fchown_fn(handle, fsp, uid, gid);
1469 }
1470
1471 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1472                         uid_t uid, gid_t gid)
1473 {
1474         VFS_FIND(lchown);
1475         return handle->fns->lchown_fn(handle, path, uid, gid);
1476 }
1477
1478 NTSTATUS vfs_chown_fsp(files_struct *fsp, uid_t uid, gid_t gid)
1479 {
1480         int ret;
1481         bool as_root = false;
1482         const char *path;
1483         char *saved_dir = NULL;
1484         char *parent_dir = NULL;
1485         NTSTATUS status;
1486
1487         if (fsp->fh->fd != -1) {
1488                 /* Try fchown. */
1489                 ret = SMB_VFS_FCHOWN(fsp, uid, gid);
1490                 if (ret == 0) {
1491                         return NT_STATUS_OK;
1492                 }
1493                 if (ret == -1 && errno != ENOSYS) {
1494                         return map_nt_error_from_unix(errno);
1495                 }
1496         }
1497
1498         as_root = (geteuid() == 0);
1499
1500         if (as_root) {
1501                 /*
1502                  * We are being asked to chown as root. Make
1503                  * sure we chdir() into the path to pin it,
1504                  * and always act using lchown to ensure we
1505                  * don't deref any symbolic links.
1506                  */
1507                 const char *final_component = NULL;
1508                 struct smb_filename local_fname;
1509
1510                 saved_dir = vfs_GetWd(talloc_tos(),fsp->conn);
1511                 if (!saved_dir) {
1512                         status = map_nt_error_from_unix(errno);
1513                         DEBUG(0,("vfs_chown_fsp: failed to get "
1514                                 "current working directory. Error was %s\n",
1515                                 strerror(errno)));
1516                         return status;
1517                 }
1518
1519                 if (!parent_dirname(talloc_tos(),
1520                                 fsp->fsp_name->base_name,
1521                                 &parent_dir,
1522                                 &final_component)) {
1523                         return NT_STATUS_NO_MEMORY;
1524                 }
1525
1526                 /* cd into the parent dir to pin it. */
1527                 ret = vfs_ChDir(fsp->conn, parent_dir);
1528                 if (ret == -1) {
1529                         return map_nt_error_from_unix(errno);
1530                 }
1531
1532                 ZERO_STRUCT(local_fname);
1533                 local_fname.base_name = discard_const_p(char, final_component);
1534
1535                 /* Must use lstat here. */
1536                 ret = SMB_VFS_LSTAT(fsp->conn, &local_fname);
1537                 if (ret == -1) {
1538                         status = map_nt_error_from_unix(errno);
1539                         goto out;
1540                 }
1541
1542                 /* Ensure it matches the fsp stat. */
1543                 if (!check_same_stat(&local_fname.st, &fsp->fsp_name->st)) {
1544                         status = NT_STATUS_ACCESS_DENIED;
1545                         goto out;
1546                 }
1547                 path = final_component;
1548         } else {
1549                 path = fsp->fsp_name->base_name;
1550         }
1551
1552         if (fsp->posix_open || as_root) {
1553                 ret = SMB_VFS_LCHOWN(fsp->conn,
1554                         path,
1555                         uid, gid);
1556         } else {
1557                 ret = SMB_VFS_CHOWN(fsp->conn,
1558                         path,
1559                         uid, gid);
1560         }
1561
1562         if (ret == 0) {
1563                 status = NT_STATUS_OK;
1564         } else {
1565                 status = map_nt_error_from_unix(errno);
1566         }
1567
1568   out:
1569
1570         if (as_root) {
1571                 vfs_ChDir(fsp->conn,saved_dir);
1572                 TALLOC_FREE(saved_dir);
1573                 TALLOC_FREE(parent_dir);
1574         }
1575         return status;
1576 }
1577
1578 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1579 {
1580         VFS_FIND(chdir);
1581         return handle->fns->chdir_fn(handle, path);
1582 }
1583
1584 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle)
1585 {
1586         VFS_FIND(getwd);
1587         return handle->fns->getwd_fn(handle);
1588 }
1589
1590 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1591                         const struct smb_filename *smb_fname,
1592                         struct smb_file_time *ft)
1593 {
1594         VFS_FIND(ntimes);
1595         return handle->fns->ntimes_fn(handle, smb_fname, ft);
1596 }
1597
1598 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1599                            struct files_struct *fsp, SMB_OFF_T offset)
1600 {
1601         VFS_FIND(ftruncate);
1602         return handle->fns->ftruncate_fn(handle, fsp, offset);
1603 }
1604
1605 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1606                                 struct files_struct *fsp,
1607                                 enum vfs_fallocate_mode mode,
1608                                 SMB_OFF_T offset,
1609                                 SMB_OFF_T len)
1610 {
1611         VFS_FIND(fallocate);
1612         return handle->fns->fallocate_fn(handle, fsp, mode, offset, len);
1613 }
1614
1615 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1616                               struct files_struct *fsp, uint32 share_mode,
1617                               uint32_t access_mask)
1618 {
1619         VFS_FIND(kernel_flock);
1620         return handle->fns->kernel_flock_fn(handle, fsp, share_mode,
1621                                          access_mask);
1622 }
1623
1624 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1625                                 struct files_struct *fsp, int leasetype)
1626 {
1627         VFS_FIND(linux_setlease);
1628         return handle->fns->linux_setlease_fn(handle, fsp, leasetype);
1629 }
1630
1631 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1632                          const char *newpath)
1633 {
1634         VFS_FIND(symlink);
1635         return handle->fns->symlink_fn(handle, oldpath, newpath);
1636 }
1637
1638 int smb_vfs_call_readlink(struct vfs_handle_struct *handle,
1639                               const char *path, char *buf, size_t bufsiz)
1640 {
1641         VFS_FIND(readlink);
1642         return handle->fns->readlink_fn(handle, path, buf, bufsiz);
1643 }
1644
1645 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1646                       const char *newpath)
1647 {
1648         VFS_FIND(link);
1649         return handle->fns->link_fn(handle, oldpath, newpath);
1650 }
1651
1652 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1653                        mode_t mode, SMB_DEV_T dev)
1654 {
1655         VFS_FIND(mknod);
1656         return handle->fns->mknod_fn(handle, path, mode, dev);
1657 }
1658
1659 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle, const char *path)
1660 {
1661         VFS_FIND(realpath);
1662         return handle->fns->realpath_fn(handle, path);
1663 }
1664
1665 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1666                                    struct sys_notify_context *ctx,
1667                                    struct notify_entry *e,
1668                                    void (*callback)(struct sys_notify_context *ctx,
1669                                                     void *private_data,
1670                                                     struct notify_event *ev),
1671                                    void *private_data, void *handle_p)
1672 {
1673         VFS_FIND(notify_watch);
1674         return handle->fns->notify_watch_fn(handle, ctx, e, callback,
1675                                             private_data, handle_p);
1676 }
1677
1678 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1679                          unsigned int flags)
1680 {
1681         VFS_FIND(chflags);
1682         return handle->fns->chflags_fn(handle, path, flags);
1683 }
1684
1685 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1686                                            const SMB_STRUCT_STAT *sbuf)
1687 {
1688         VFS_FIND(file_id_create);
1689         return handle->fns->file_id_create_fn(handle, sbuf);
1690 }
1691
1692 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1693                                  struct files_struct *fsp,
1694                                  const char *fname,
1695                                  TALLOC_CTX *mem_ctx,
1696                                  unsigned int *num_streams,
1697                                  struct stream_struct **streams)
1698 {
1699         VFS_FIND(streaminfo);
1700         return handle->fns->streaminfo_fn(handle, fsp, fname, mem_ctx,
1701                                           num_streams, streams);
1702 }
1703
1704 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1705                                    const char *path, const char *name,
1706                                    TALLOC_CTX *mem_ctx, char **found_name)
1707 {
1708         VFS_FIND(get_real_filename);
1709         return handle->fns->get_real_filename_fn(handle, path, name, mem_ctx,
1710                                                  found_name);
1711 }
1712
1713 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1714                                      const char *filename)
1715 {
1716         VFS_FIND(connectpath);
1717         return handle->fns->connectpath_fn(handle, filename);
1718 }
1719
1720 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1721                               struct files_struct *fsp,
1722                               struct lock_struct *plock)
1723 {
1724         VFS_FIND(strict_lock);
1725         return handle->fns->strict_lock_fn(handle, fsp, plock);
1726 }
1727
1728 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1729                                 struct files_struct *fsp,
1730                                 struct lock_struct *plock)
1731 {
1732         VFS_FIND(strict_unlock);
1733         handle->fns->strict_unlock_fn(handle, fsp, plock);
1734 }
1735
1736 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1737                                      const char *name,
1738                                      enum vfs_translate_direction direction,
1739                                      TALLOC_CTX *mem_ctx,
1740                                      char **mapped_name)
1741 {
1742         VFS_FIND(translate_name);
1743         return handle->fns->translate_name_fn(handle, name, direction, mem_ctx,
1744                                               mapped_name);
1745 }
1746
1747 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
1748                             struct files_struct *fsp,
1749                             TALLOC_CTX *ctx,
1750                             uint32_t function,
1751                             uint16_t req_flags,
1752                             const uint8_t *in_data,
1753                             uint32_t in_len,
1754                             uint8_t **out_data,
1755                             uint32_t max_out_len,
1756                             uint32_t *out_len)
1757 {
1758         VFS_FIND(fsctl);
1759         return handle->fns->fsctl_fn(handle, fsp, ctx, function, req_flags,
1760                                      in_data, in_len, out_data, max_out_len,
1761                                      out_len);
1762 }
1763
1764 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1765                                   struct files_struct *fsp,
1766                                   uint32 security_info,
1767                                   struct security_descriptor **ppdesc)
1768 {
1769         VFS_FIND(fget_nt_acl);
1770         return handle->fns->fget_nt_acl_fn(handle, fsp, security_info,
1771                                            ppdesc);
1772 }
1773
1774 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1775                                  const char *name,
1776                                  uint32 security_info,
1777                                  struct security_descriptor **ppdesc)
1778 {
1779         VFS_FIND(get_nt_acl);
1780         return handle->fns->get_nt_acl_fn(handle, name, security_info, ppdesc);
1781 }
1782
1783 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1784                                   struct files_struct *fsp,
1785                                   uint32 security_info_sent,
1786                                   const struct security_descriptor *psd)
1787 {
1788         VFS_FIND(fset_nt_acl);
1789         return handle->fns->fset_nt_acl_fn(handle, fsp, security_info_sent,
1790                                            psd);
1791 }
1792
1793 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1794                            mode_t mode)
1795 {
1796         VFS_FIND(chmod_acl);
1797         return handle->fns->chmod_acl_fn(handle, name, mode);
1798 }
1799
1800 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1801                             struct files_struct *fsp, mode_t mode)
1802 {
1803         VFS_FIND(fchmod_acl);
1804         return handle->fns->fchmod_acl_fn(handle, fsp, mode);
1805 }
1806
1807 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1808                                    SMB_ACL_T theacl, int entry_id,
1809                                    SMB_ACL_ENTRY_T *entry_p)
1810 {
1811         VFS_FIND(sys_acl_get_entry);
1812         return handle->fns->sys_acl_get_entry_fn(handle, theacl, entry_id,
1813                                                  entry_p);
1814 }
1815
1816 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1817                                       SMB_ACL_ENTRY_T entry_d,
1818                                       SMB_ACL_TAG_T *tag_type_p)
1819 {
1820         VFS_FIND(sys_acl_get_tag_type);
1821         return handle->fns->sys_acl_get_tag_type_fn(handle, entry_d,
1822                                                     tag_type_p);
1823 }
1824
1825 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1826                                      SMB_ACL_ENTRY_T entry_d,
1827                                      SMB_ACL_PERMSET_T *permset_p)
1828 {
1829         VFS_FIND(sys_acl_get_permset);
1830         return handle->fns->sys_acl_get_permset_fn(handle, entry_d, permset_p);
1831 }
1832
1833 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1834                                           SMB_ACL_ENTRY_T entry_d)
1835 {
1836         VFS_FIND(sys_acl_get_qualifier);
1837         return handle->fns->sys_acl_get_qualifier_fn(handle, entry_d);
1838 }
1839
1840 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1841                                         const char *path_p,
1842                                         SMB_ACL_TYPE_T type)
1843 {
1844         VFS_FIND(sys_acl_get_file);
1845         return handle->fns->sys_acl_get_file_fn(handle, path_p, type);
1846 }
1847
1848 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1849                                       struct files_struct *fsp)
1850 {
1851         VFS_FIND(sys_acl_get_fd);
1852         return handle->fns->sys_acl_get_fd_fn(handle, fsp);
1853 }
1854
1855 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1856                                      SMB_ACL_PERMSET_T permset)
1857 {
1858         VFS_FIND(sys_acl_clear_perms);
1859         return handle->fns->sys_acl_clear_perms_fn(handle, permset);
1860 }
1861
1862 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1863                                   SMB_ACL_PERMSET_T permset,
1864                                   SMB_ACL_PERM_T perm)
1865 {
1866         VFS_FIND(sys_acl_add_perm);
1867         return handle->fns->sys_acl_add_perm_fn(handle, permset, perm);
1868 }
1869
1870 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1871                                     SMB_ACL_T theacl, ssize_t *plen)
1872 {
1873         VFS_FIND(sys_acl_to_text);
1874         return handle->fns->sys_acl_to_text_fn(handle, theacl, plen);
1875 }
1876
1877 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1878                                     int count)
1879 {
1880         VFS_FIND(sys_acl_init);
1881         return handle->fns->sys_acl_init_fn(handle, count);
1882 }
1883
1884 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1885                                       SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1886 {
1887         VFS_FIND(sys_acl_create_entry);
1888         return handle->fns->sys_acl_create_entry_fn(handle, pacl, pentry);
1889 }
1890
1891 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1892                                       SMB_ACL_ENTRY_T entry,
1893                                       SMB_ACL_TAG_T tagtype)
1894 {
1895         VFS_FIND(sys_acl_set_tag_type);
1896         return handle->fns->sys_acl_set_tag_type_fn(handle, entry, tagtype);
1897 }
1898
1899 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1900                                        SMB_ACL_ENTRY_T entry, void *qual)
1901 {
1902         VFS_FIND(sys_acl_set_qualifier);
1903         return handle->fns->sys_acl_set_qualifier_fn(handle, entry, qual);
1904 }
1905
1906 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1907                                      SMB_ACL_ENTRY_T entry,
1908                                      SMB_ACL_PERMSET_T permset)
1909 {
1910         VFS_FIND(sys_acl_set_permset);
1911         return handle->fns->sys_acl_set_permset_fn(handle, entry, permset);
1912 }
1913
1914 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1915                                SMB_ACL_T theacl)
1916 {
1917         VFS_FIND(sys_acl_valid);
1918         return handle->fns->sys_acl_valid_fn(handle, theacl);
1919 }
1920
1921 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1922                                   const char *name, SMB_ACL_TYPE_T acltype,
1923                                   SMB_ACL_T theacl)
1924 {
1925         VFS_FIND(sys_acl_set_file);
1926         return handle->fns->sys_acl_set_file_fn(handle, name, acltype, theacl);
1927 }
1928
1929 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1930                                 struct files_struct *fsp, SMB_ACL_T theacl)
1931 {
1932         VFS_FIND(sys_acl_set_fd);
1933         return handle->fns->sys_acl_set_fd_fn(handle, fsp, theacl);
1934 }
1935
1936 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1937                                          const char *path)
1938 {
1939         VFS_FIND(sys_acl_delete_def_file);
1940         return handle->fns->sys_acl_delete_def_file_fn(handle, path);
1941 }
1942
1943 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1944                                   SMB_ACL_PERMSET_T permset,
1945                                   SMB_ACL_PERM_T perm)
1946 {
1947         VFS_FIND(sys_acl_get_perm);
1948         return handle->fns->sys_acl_get_perm_fn(handle, permset, perm);
1949 }
1950
1951 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1952                                    char *text)
1953 {
1954         VFS_FIND(sys_acl_free_text);
1955         return handle->fns->sys_acl_free_text_fn(handle, text);
1956 }
1957
1958 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1959                                   SMB_ACL_T posix_acl)
1960 {
1961         VFS_FIND(sys_acl_free_acl);
1962         return handle->fns->sys_acl_free_acl_fn(handle, posix_acl);
1963 }
1964
1965 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1966                                         void *qualifier, SMB_ACL_TAG_T tagtype)
1967 {
1968         VFS_FIND(sys_acl_free_qualifier);
1969         return handle->fns->sys_acl_free_qualifier_fn(handle, qualifier,
1970                                                       tagtype);
1971 }
1972
1973 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1974                               const char *path, const char *name, void *value,
1975                               size_t size)
1976 {
1977         VFS_FIND(getxattr);
1978         return handle->fns->getxattr_fn(handle, path, name, value, size);
1979 }
1980
1981 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1982                                const char *path, const char *name, void *value,
1983                                size_t size)
1984 {
1985         VFS_FIND(lgetxattr);
1986         return handle->fns->lgetxattr_fn(handle, path, name, value, size);
1987 }
1988
1989 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1990                                struct files_struct *fsp, const char *name,
1991                                void *value, size_t size)
1992 {
1993         VFS_FIND(fgetxattr);
1994         return handle->fns->fgetxattr_fn(handle, fsp, name, value, size);
1995 }
1996
1997 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1998                                const char *path, char *list, size_t size)
1999 {
2000         VFS_FIND(listxattr);
2001         return handle->fns->listxattr_fn(handle, path, list, size);
2002 }
2003
2004 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
2005                                 const char *path, char *list, size_t size)
2006 {
2007         VFS_FIND(llistxattr);
2008         return handle->fns->llistxattr_fn(handle, path, list, size);
2009 }
2010
2011 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
2012                                 struct files_struct *fsp, char *list,
2013                                 size_t size)
2014 {
2015         VFS_FIND(flistxattr);
2016         return handle->fns->flistxattr_fn(handle, fsp, list, size);
2017 }
2018
2019 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
2020                              const char *path, const char *name)
2021 {
2022         VFS_FIND(removexattr);
2023         return handle->fns->removexattr_fn(handle, path, name);
2024 }
2025
2026 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
2027                               const char *path, const char *name)
2028 {
2029         VFS_FIND(lremovexattr);
2030         return handle->fns->lremovexattr_fn(handle, path, name);
2031 }
2032
2033 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
2034                               struct files_struct *fsp, const char *name)
2035 {
2036         VFS_FIND(fremovexattr);
2037         return handle->fns->fremovexattr_fn(handle, fsp, name);
2038 }
2039
2040 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
2041                           const char *name, const void *value, size_t size,
2042                           int flags)
2043 {
2044         VFS_FIND(setxattr);
2045         return handle->fns->setxattr_fn(handle, path, name, value, size, flags);
2046 }
2047
2048 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
2049                            const char *name, const void *value, size_t size,
2050                            int flags)
2051 {
2052         VFS_FIND(lsetxattr);
2053         return handle->fns->lsetxattr_fn(handle, path, name, value, size,
2054                                          flags);
2055 }
2056
2057 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
2058                            struct files_struct *fsp, const char *name,
2059                            const void *value, size_t size, int flags)
2060 {
2061         VFS_FIND(fsetxattr);
2062         return handle->fns->fsetxattr_fn(handle, fsp, name, value, size, flags);
2063 }
2064
2065 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
2066                           struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2067 {
2068         VFS_FIND(aio_read);
2069         return handle->fns->aio_read_fn(handle, fsp, aiocb);
2070 }
2071
2072 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
2073                            struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2074 {
2075         VFS_FIND(aio_write);
2076         return handle->fns->aio_write_fn(handle, fsp, aiocb);
2077 }
2078
2079 ssize_t smb_vfs_call_aio_return(struct vfs_handle_struct *handle,
2080                                 struct files_struct *fsp,
2081                                 SMB_STRUCT_AIOCB *aiocb)
2082 {
2083         VFS_FIND(aio_return);
2084         return handle->fns->aio_return_fn(handle, fsp, aiocb);
2085 }
2086
2087 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
2088                             struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2089 {
2090         VFS_FIND(aio_cancel);
2091         return handle->fns->aio_cancel_fn(handle, fsp, aiocb);
2092 }
2093
2094 int smb_vfs_call_aio_error(struct vfs_handle_struct *handle,
2095                            struct files_struct *fsp,
2096                            SMB_STRUCT_AIOCB *aiocb)
2097 {
2098         VFS_FIND(aio_error);
2099         return handle->fns->aio_error_fn(handle, fsp, aiocb);
2100 }
2101
2102 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
2103                            struct files_struct *fsp, int op,
2104                            SMB_STRUCT_AIOCB *aiocb)
2105 {
2106         VFS_FIND(aio_fsync);
2107         return handle->fns->aio_fsync_fn(handle, fsp, op, aiocb);
2108 }
2109
2110 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
2111                              struct files_struct *fsp,
2112                              const SMB_STRUCT_AIOCB * const aiocb[], int n,
2113                              const struct timespec *timeout)
2114 {
2115         VFS_FIND(aio_suspend);
2116         return handle->fns->aio_suspend_fn(handle, fsp, aiocb, n, timeout);
2117 }
2118
2119 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
2120                             struct files_struct *fsp)
2121 {
2122         VFS_FIND(aio_force);
2123         return handle->fns->aio_force_fn(handle, fsp);
2124 }
2125
2126 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
2127                              const struct smb_filename *fname,
2128                              SMB_STRUCT_STAT *sbuf)
2129 {
2130         VFS_FIND(is_offline);
2131         return handle->fns->is_offline_fn(handle, fname, sbuf);
2132 }
2133
2134 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
2135                              const struct smb_filename *fname)
2136 {
2137         VFS_FIND(set_offline);
2138         return handle->fns->set_offline_fn(handle, fname);
2139 }