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