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