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         return SMB_VFS_CHDIR(conn,path);
 710 }
 711
 712 /*******************************************************************
 713  Return the absolute current directory path - given a UNIX pathname.
 714  Note that this path is returned in DOS format, not UNIX
 715  format. Note this can be called with conn == NULL.
 716 ********************************************************************/
 717
 718 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
 719 {
 720         char s[PATH_MAX+1];
 721         char *result = NULL;
 722         DATA_BLOB cache_value;
 723         struct file_id key;
 724         struct smb_filename *smb_fname_dot = NULL;
 725         struct smb_filename *smb_fname_full = NULL;
 726         NTSTATUS status;
 727
 728         *s = 0;
 729
 730         if (!lp_getwd_cache()) {
 731                 goto nocache;
 732         }
 733
 734         status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
 735                                             &smb_fname_dot);
 736         if (!NT_STATUS_IS_OK(status)) {
 737                 errno = map_errno_from_nt_status(status);
 738                 goto out;
 739         }
 740
 741         if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
 742                 /*
 743                  * Known to fail for root: the directory may be NFS-mounted
 744                  * and exported with root_squash (so has no root access).
 745                  */
 746                 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
 747                          "(NFS problem ?)\n", strerror(errno) ));
 748                 goto nocache;
 749         }
 750
 751         key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
 752
 753         if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
 754                              data_blob_const(&key, sizeof(key)),
 755                              &cache_value)) {
 756                 goto nocache;
 757         }
 758
 759         SMB_ASSERT((cache_value.length > 0)
 760                    && (cache_value.data[cache_value.length-1] == '\0'));
 761
 762         status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
 763                                             NULL, NULL, &smb_fname_full);
 764         if (!NT_STATUS_IS_OK(status)) {
 765                 errno = map_errno_from_nt_status(status);
 766                 goto out;
 767         }
 768
 769         if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
 770             (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
 771             (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
 772             (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
 773                 /*
 774                  * Ok, we're done
 775                  */
 776                 result = talloc_strdup(ctx, smb_fname_full->base_name);
 777                 if (result == NULL) {
 778                         errno = ENOMEM;
 779                 }
 780                 goto out;
 781         }
 782
 783  nocache:
 784
 785         /*
 786          * We don't have the information to hand so rely on traditional
 787          * methods. The very slow getcwd, which spawns a process on some
 788          * systems, or the not quite so bad getwd.
 789          */
 790
 791         if (!SMB_VFS_GETWD(conn,s)) {
 792                 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
 793                           strerror(errno)));
 794                 goto out;
 795         }
 796
 797         if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
 798                 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
 799
 800                 memcache_add(smbd_memcache(), GETWD_CACHE,
 801                              data_blob_const(&key, sizeof(key)),
 802                              data_blob_const(s, strlen(s)+1));
 803         }
 804
 805         result = talloc_strdup(ctx, s);
 806         if (result == NULL) {
 807                 errno = ENOMEM;
 808         }
 809
 810  out:
 811         TALLOC_FREE(smb_fname_dot);
 812         TALLOC_FREE(smb_fname_full);
 813         return result;
 814 }
 815
 816 /*******************************************************************
 817  Reduce a file name, removing .. elements and checking that
 818  it is below dir in the heirachy. This uses realpath.
 819 ********************************************************************/
 820
 821 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
 822 {
 823 #ifdef REALPATH_TAKES_NULL
 824         bool free_resolved_name = True;
 825 #else
 826         char resolved_name_buf[PATH_MAX+1];
 827         bool free_resolved_name = False;
 828 #endif
 829         char *resolved_name = NULL;
 830         char *p = NULL;
 831
 832         DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
 833
 834 #ifdef REALPATH_TAKES_NULL
 835         resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
 836 #else
 837         resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
 838 #endif
 839
 840         if (!resolved_name) {
 841                 switch (errno) {
 842                         case ENOTDIR:
 843                                 DEBUG(3,("check_reduced_name: Component not a "
 844                                          "directory in getting realpath for "
 845                                          "%s\n", fname));
 846                                 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
 847                         case ENOENT:
 848                         {
 849                                 TALLOC_CTX *ctx = talloc_tos();
 850                                 char *tmp_fname = NULL;
 851                                 char *last_component = NULL;
 852                                 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
 853
 854                                 tmp_fname = talloc_strdup(ctx, fname);
 855                                 if (!tmp_fname) {
 856                                         return NT_STATUS_NO_MEMORY;
 857                                 }
 858                                 p = strrchr_m(tmp_fname, '/');
 859                                 if (p) {
 860                                         *p++ = '\0';
 861                                         last_component = p;
 862                                 } else {
 863                                         last_component = tmp_fname;
 864                                         tmp_fname = talloc_strdup(ctx,
 865                                                         ".");
 866                                         if (!tmp_fname) {
 867                                                 return NT_STATUS_NO_MEMORY;
 868                                         }
 869                                 }
 870
 871 #ifdef REALPATH_TAKES_NULL
 872                                 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
 873 #else
 874                                 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
 875 #endif
 876                                 if (!resolved_name) {
 877                                         NTSTATUS status = map_nt_error_from_unix(errno);
 878
 879                                         if (errno == ENOENT || errno == ENOTDIR) {
 880                                                 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
 881                                         }
 882
 883                                         DEBUG(3,("check_reduce_named: "
 884                                                  "couldn't get realpath for "
 885                                                  "%s (%s)\n",
 886                                                 fname,
 887                                                 nt_errstr(status)));
 888                                         return status;
 889                                 }
 890                                 tmp_fname = talloc_asprintf(ctx,
 891                                                 "%s/%s",
 892                                                 resolved_name,
 893                                                 last_component);
 894                                 if (!tmp_fname) {
 895                                         return NT_STATUS_NO_MEMORY;
 896                                 }
 897 #ifdef REALPATH_TAKES_NULL
 898                                 SAFE_FREE(resolved_name);
 899                                 resolved_name = SMB_STRDUP(tmp_fname);
 900                                 if (!resolved_name) {
 901                                         DEBUG(0, ("check_reduced_name: malloc "
 902                                                   "fail for %s\n", tmp_fname));
 903                                         return NT_STATUS_NO_MEMORY;
 904                                 }
 905 #else
 906                                 safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
 907                                 resolved_name = resolved_name_buf;
 908 #endif
 909                                 break;
 910                         }
 911                         default:
 912                                 DEBUG(1,("check_reduced_name: couldn't get "
 913                                          "realpath for %s\n", fname));
 914                                 return map_nt_error_from_unix(errno);
 915                 }
 916         }
 917
 918         DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
 919                   resolved_name));
 920
 921         if (*resolved_name != '/') {
 922                 DEBUG(0,("check_reduced_name: realpath doesn't return "
 923                          "absolute paths !\n"));
 924                 if (free_resolved_name) {
 925                         SAFE_FREE(resolved_name);
 926                 }
 927                 return NT_STATUS_OBJECT_NAME_INVALID;
 928         }
 929
 930         /* Check for widelinks allowed. */
 931         if (!lp_widelinks(SNUM(conn))) {
 932                     const char *conn_rootdir;
 933
 934                     conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
 935                     if (conn_rootdir == NULL) {
 936                             DEBUG(2, ("check_reduced_name: Could not get "
 937                                       "conn_rootdir\n"));
 938                             if (free_resolved_name) {
 939                                     SAFE_FREE(resolved_name);
 940                             }
 941                             return NT_STATUS_ACCESS_DENIED;
 942                     }
 943
 944                     if (strncmp(conn_rootdir, resolved_name,
 945                                 strlen(conn_rootdir)) != 0) {
 946                             DEBUG(2, ("check_reduced_name: Bad access "
 947                                       "attempt: %s is a symlink outside the "
 948                                       "share path\n", fname));
 949                             if (free_resolved_name) {
 950                                     SAFE_FREE(resolved_name);
 951                             }
 952                             return NT_STATUS_ACCESS_DENIED;
 953                     }
 954         }
 955
 956         /* Check if we are allowing users to follow symlinks */
 957         /* Patch from David Clerc <David.Clerc@cui.unige.ch>
 958                 University of Geneva */
 959
 960 #ifdef S_ISLNK
 961         if (!lp_symlinks(SNUM(conn))) {
 962                 struct smb_filename *smb_fname = NULL;
 963                 NTSTATUS status;
 964
 965                 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
 966                                                     NULL, &smb_fname);
 967                 if (!NT_STATUS_IS_OK(status)) {
 968                         if (free_resolved_name) {
 969                                 SAFE_FREE(resolved_name);
 970                         }
 971                         return status;
 972                 }
 973
 974                 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
 975                                 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
 976                         if (free_resolved_name) {
 977                                 SAFE_FREE(resolved_name);
 978                         }
 979                         DEBUG(3,("check_reduced_name: denied: file path name "
 980                                  "%s is a symlink\n",resolved_name));
 981                         TALLOC_FREE(smb_fname);
 982                         return NT_STATUS_ACCESS_DENIED;
 983                 }
 984                 TALLOC_FREE(smb_fname);
 985         }
 986 #endif
 987
 988         DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
 989                  resolved_name));
 990         if (free_resolved_name) {
 991                 SAFE_FREE(resolved_name);
 992         }
 993         return NT_STATUS_OK;
 994 }
 995
 996 /**
 997  * XXX: This is temporary and there should be no callers of this once
 998  * smb_filename is plumbed through all path based operations.
 999  */
1000 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1001                        SMB_STRUCT_STAT *psbuf)
1002 {
1003         struct smb_filename *smb_fname = NULL;
1004         NTSTATUS status;
1005         int ret;
1006
1007         status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1008                                                   &smb_fname);
1009         if (!NT_STATUS_IS_OK(status)) {
1010                 errno = map_errno_from_nt_status(status);
1011                 return -1;
1012         }
1013
1014         if (lp_posix_pathnames()) {
1015                 ret = SMB_VFS_LSTAT(conn, smb_fname);
1016         } else {
1017                 ret = SMB_VFS_STAT(conn, smb_fname);
1018         }
1019
1020         if (ret != -1) {
1021                 *psbuf = smb_fname->st;
1022         }
1023
1024         TALLOC_FREE(smb_fname);
1025         return ret;
1026 }
1027
1028 /**
1029  * XXX: This is temporary and there should be no callers of this once
1030  * smb_filename is plumbed through all path based operations.
1031  */
1032 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1033                         SMB_STRUCT_STAT *psbuf)
1034 {
1035         struct smb_filename *smb_fname = NULL;
1036         NTSTATUS status;
1037         int ret;
1038
1039         status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1040                                                   &smb_fname);
1041         if (!NT_STATUS_IS_OK(status)) {
1042                 errno = map_errno_from_nt_status(status);
1043                 return -1;
1044         }
1045
1046         ret = SMB_VFS_LSTAT(conn, smb_fname);
1047         if (ret != -1) {
1048                 *psbuf = smb_fname->st;
1049         }
1050
1051         TALLOC_FREE(smb_fname);
1052         return ret;
1053 }
1054
1055 /**
1056  * Ensure LSTAT is called for POSIX paths.
1057  */
1058
1059 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1060 {
1061         int ret;
1062
1063         if(fsp->is_directory || fsp->fh->fd == -1) {
1064                 if (fsp->posix_open) {
1065                         ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1066                 } else {
1067                         ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1068                 }
1069                 if (ret == -1) {
1070                         return map_nt_error_from_unix(errno);
1071                 }
1072         } else {
1073                 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1074                         return map_nt_error_from_unix(errno);
1075                 }
1076         }
1077         return NT_STATUS_OK;
1078 }
1079
1080 /*
1081   generate a file_id from a stat structure
1082  */
1083 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1084 {
1085         return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1086 }
1087
1088 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1089                          const char *service, const char *user)
1090 {
1091         VFS_FIND(connect_fn);
1092         return handle->fns->connect_fn(handle, service, user);
1093 }
1094
1095 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1096 {
1097         VFS_FIND(disconnect);
1098         handle->fns->disconnect(handle);
1099 }
1100
1101 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1102                                 const char *path, bool small_query,
1103                                 uint64_t *bsize, uint64_t *dfree,
1104                                 uint64_t *dsize)
1105 {
1106         VFS_FIND(disk_free);
1107         return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1108                                       dsize);
1109 }
1110
1111 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1112                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1113                            SMB_DISK_QUOTA *qt)
1114 {
1115         VFS_FIND(get_quota);
1116         return handle->fns->get_quota(handle, qtype, id, qt);
1117 }
1118
1119 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1120                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1121                            SMB_DISK_QUOTA *qt)
1122 {
1123         VFS_FIND(set_quota);
1124         return handle->fns->set_quota(handle, qtype, id, qt);
1125 }
1126
1127 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1128                                       struct files_struct *fsp,
1129                                       SHADOW_COPY_DATA *shadow_copy_data,
1130                                       bool labels)
1131 {
1132         VFS_FIND(get_shadow_copy_data);
1133         return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1134                                                  labels);
1135 }
1136 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1137                          struct vfs_statvfs_struct *statbuf)
1138 {
1139         VFS_FIND(statvfs);
1140         return handle->fns->statvfs(handle, path, statbuf);
1141 }
1142
1143 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1144                         enum timestamp_set_resolution *p_ts_res)
1145 {
1146         VFS_FIND(fs_capabilities);
1147         return handle->fns->fs_capabilities(handle, p_ts_res);
1148 }
1149
1150 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1151                                      const char *fname, const char *mask,
1152                                      uint32 attributes)
1153 {
1154         VFS_FIND(opendir);
1155         return handle->fns->opendir(handle, fname, mask, attributes);
1156 }
1157
1158 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1159                                               SMB_STRUCT_DIR *dirp,
1160                                               SMB_STRUCT_STAT *sbuf)
1161 {
1162         VFS_FIND(readdir);
1163         return handle->fns->readdir(handle, dirp, sbuf);
1164 }
1165
1166 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1167                           SMB_STRUCT_DIR *dirp, long offset)
1168 {
1169         VFS_FIND(seekdir);
1170         handle->fns->seekdir(handle, dirp, offset);
1171 }
1172
1173 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1174                           SMB_STRUCT_DIR *dirp)
1175 {
1176         VFS_FIND(telldir);
1177         return handle->fns->telldir(handle, dirp);
1178 }
1179
1180 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1181                              SMB_STRUCT_DIR *dirp)
1182 {
1183         VFS_FIND(rewind_dir);
1184         handle->fns->rewind_dir(handle, dirp);
1185 }
1186
1187 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1188                        mode_t mode)
1189 {
1190         VFS_FIND(mkdir);
1191         return handle->fns->mkdir(handle, path, mode);
1192 }
1193
1194 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1195 {
1196         VFS_FIND(rmdir);
1197         return handle->fns->rmdir(handle, path);
1198 }
1199
1200 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1201                           SMB_STRUCT_DIR *dir)
1202 {
1203         VFS_FIND(closedir);
1204         return handle->fns->closedir(handle, dir);
1205 }
1206
1207 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1208                                  SMB_STRUCT_DIR *dirp)
1209 {
1210         VFS_FIND(init_search_op);
1211         handle->fns->init_search_op(handle, dirp);
1212 }
1213
1214 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1215                       struct smb_filename *smb_fname, struct files_struct *fsp,
1216                       int flags, mode_t mode)
1217 {
1218         VFS_FIND(open);
1219         return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1220 }
1221
1222 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1223                                   struct smb_request *req,
1224                                   uint16_t root_dir_fid,
1225                                   struct smb_filename *smb_fname,
1226                                   uint32_t access_mask,
1227                                   uint32_t share_access,
1228                                   uint32_t create_disposition,
1229                                   uint32_t create_options,
1230                                   uint32_t file_attributes,
1231                                   uint32_t oplock_request,
1232                                   uint64_t allocation_size,
1233                                   uint32_t private_flags,
1234                                   struct security_descriptor *sd,
1235                                   struct ea_list *ea_list,
1236                                   files_struct **result,
1237                                   int *pinfo)
1238 {
1239         VFS_FIND(create_file);
1240         return handle->fns->create_file(
1241                 handle, req, root_dir_fid, smb_fname, access_mask,
1242                 share_access, create_disposition, create_options,
1243                 file_attributes, oplock_request, allocation_size,
1244                 private_flags, sd, ea_list,
1245                 result, pinfo);
1246 }
1247
1248 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1249                           struct files_struct *fsp)
1250 {
1251         VFS_FIND(close_fn);
1252         return handle->fns->close_fn(handle, fsp);
1253 }
1254
1255 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1256                               struct files_struct *fsp, void *data, size_t n)
1257 {
1258         VFS_FIND(vfs_read);
1259         return handle->fns->vfs_read(handle, fsp, data, n);
1260 }
1261
1262 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1263                            struct files_struct *fsp, void *data, size_t n,
1264                            SMB_OFF_T offset)
1265 {
1266         VFS_FIND(pread);
1267         return handle->fns->pread(handle, fsp, data, n, offset);
1268 }
1269
1270 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1271                            struct files_struct *fsp, const void *data,
1272                            size_t n)
1273 {
1274         VFS_FIND(write);
1275         return handle->fns->write(handle, fsp, data, n);
1276 }
1277
1278 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1279                             struct files_struct *fsp, const void *data,
1280                             size_t n, SMB_OFF_T offset)
1281 {
1282         VFS_FIND(pwrite);
1283         return handle->fns->pwrite(handle, fsp, data, n, offset);
1284 }
1285
1286 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1287                              struct files_struct *fsp, SMB_OFF_T offset,
1288                              int whence)
1289 {
1290         VFS_FIND(lseek);
1291         return handle->fns->lseek(handle, fsp, offset, whence);
1292 }
1293
1294 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1295                               files_struct *fromfsp, const DATA_BLOB *header,
1296                               SMB_OFF_T offset, size_t count)
1297 {
1298         VFS_FIND(sendfile);
1299         return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1300                                      count);
1301 }
1302
1303 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1304                               files_struct *tofsp, SMB_OFF_T offset,
1305                               size_t count)
1306 {
1307         VFS_FIND(recvfile);
1308         return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1309 }
1310
1311 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1312                         const struct smb_filename *smb_fname_src,
1313                         const struct smb_filename *smb_fname_dst)
1314 {
1315         VFS_FIND(rename);
1316         return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1317 }
1318
1319 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1320                        struct files_struct *fsp)
1321 {
1322         VFS_FIND(fsync);
1323         return handle->fns->fsync(handle, fsp);
1324 }
1325
1326 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1327                       struct smb_filename *smb_fname)
1328 {
1329         VFS_FIND(stat);
1330         return handle->fns->stat(handle, smb_fname);
1331 }
1332
1333 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1334                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1335 {
1336         VFS_FIND(fstat);
1337         return handle->fns->fstat(handle, fsp, sbuf);
1338 }
1339
1340 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1341                        struct smb_filename *smb_filename)
1342 {
1343         VFS_FIND(lstat);
1344         return handle->fns->lstat(handle, smb_filename);
1345 }
1346
1347 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1348                                      struct files_struct *fsp,
1349                                      const SMB_STRUCT_STAT *sbuf)
1350 {
1351         VFS_FIND(get_alloc_size);
1352         return handle->fns->get_alloc_size(handle, fsp, sbuf);
1353 }
1354
1355 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1356                         const struct smb_filename *smb_fname)
1357 {
1358         VFS_FIND(unlink);
1359         return handle->fns->unlink(handle, smb_fname);
1360 }
1361
1362 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1363                        mode_t mode)
1364 {
1365         VFS_FIND(chmod);
1366         return handle->fns->chmod(handle, path, mode);
1367 }
1368
1369 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1370                         struct files_struct *fsp, mode_t mode)
1371 {
1372         VFS_FIND(fchmod);
1373         return handle->fns->fchmod(handle, fsp, mode);
1374 }
1375
1376 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1377                        uid_t uid, gid_t gid)
1378 {
1379         VFS_FIND(chown);
1380         return handle->fns->chown(handle, path, uid, gid);
1381 }
1382
1383 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1384                         struct files_struct *fsp, uid_t uid, gid_t gid)
1385 {
1386         VFS_FIND(fchown);
1387         return handle->fns->fchown(handle, fsp, uid, gid);
1388 }
1389
1390 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1391                         uid_t uid, gid_t gid)
1392 {
1393         VFS_FIND(lchown);
1394         return handle->fns->lchown(handle, path, uid, gid);
1395 }
1396
1397 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1398 {
1399         VFS_FIND(chdir);
1400         return handle->fns->chdir(handle, path);
1401 }
1402
1403 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1404 {
1405         VFS_FIND(getwd);
1406         return handle->fns->getwd(handle, buf);
1407 }
1408
1409 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1410                         const struct smb_filename *smb_fname,
1411                         struct smb_file_time *ft)
1412 {
1413         VFS_FIND(ntimes);
1414         return handle->fns->ntimes(handle, smb_fname, ft);
1415 }
1416
1417 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1418                            struct files_struct *fsp, SMB_OFF_T offset)
1419 {
1420         VFS_FIND(ftruncate);
1421         return handle->fns->ftruncate(handle, fsp, offset);
1422 }
1423
1424 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1425                               struct files_struct *fsp, uint32 share_mode,
1426                               uint32_t access_mask)
1427 {
1428         VFS_FIND(kernel_flock);
1429         return handle->fns->kernel_flock(handle, fsp, share_mode,
1430                                          access_mask);
1431 }
1432
1433 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1434                                 struct files_struct *fsp, int leasetype)
1435 {
1436         VFS_FIND(linux_setlease);
1437         return handle->fns->linux_setlease(handle, fsp, leasetype);
1438 }
1439
1440 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1441                          const char *newpath)
1442 {
1443         VFS_FIND(symlink);
1444         return handle->fns->symlink(handle, oldpath, newpath);
1445 }
1446
1447 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1448                               const char *path, char *buf, size_t bufsiz)
1449 {
1450         VFS_FIND(vfs_readlink);
1451         return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1452 }
1453
1454 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1455                       const char *newpath)
1456 {
1457         VFS_FIND(link);
1458         return handle->fns->link(handle, oldpath, newpath);
1459 }
1460
1461 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1462                        mode_t mode, SMB_DEV_T dev)
1463 {
1464         VFS_FIND(mknod);
1465         return handle->fns->mknod(handle, path, mode, dev);
1466 }
1467
1468 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1469                             const char *path, char *resolved_path)
1470 {
1471         VFS_FIND(realpath);
1472         return handle->fns->realpath(handle, path, resolved_path);
1473 }
1474
1475 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1476                                    struct sys_notify_context *ctx,
1477                                    struct notify_entry *e,
1478                                    void (*callback)(struct sys_notify_context *ctx,
1479                                                     void *private_data,
1480                                                     struct notify_event *ev),
1481                                    void *private_data, void *handle_p)
1482 {
1483         VFS_FIND(notify_watch);
1484         return handle->fns->notify_watch(handle, ctx, e, callback,
1485                                          private_data, handle_p);
1486 }
1487
1488 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1489                          unsigned int flags)
1490 {
1491         VFS_FIND(chflags);
1492         return handle->fns->chflags(handle, path, flags);
1493 }
1494
1495 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1496                                            const SMB_STRUCT_STAT *sbuf)
1497 {
1498         VFS_FIND(file_id_create);
1499         return handle->fns->file_id_create(handle, sbuf);
1500 }
1501
1502 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1503                                  struct files_struct *fsp,
1504                                  const char *fname,
1505                                  TALLOC_CTX *mem_ctx,
1506                                  unsigned int *num_streams,
1507                                  struct stream_struct **streams)
1508 {
1509         VFS_FIND(streaminfo);
1510         return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1511                                        num_streams, streams);
1512 }
1513
1514 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1515                                    const char *path, const char *name,
1516                                    TALLOC_CTX *mem_ctx, char **found_name)
1517 {
1518         VFS_FIND(get_real_filename);
1519         return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1520                                               found_name);
1521 }
1522
1523 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1524                                      const char *filename)
1525 {
1526         VFS_FIND(connectpath);
1527         return handle->fns->connectpath(handle, filename);
1528 }
1529
1530 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1531                               struct files_struct *fsp,
1532                               struct lock_struct *plock)
1533 {
1534         VFS_FIND(strict_lock);
1535         return handle->fns->strict_lock(handle, fsp, plock);
1536 }
1537
1538 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1539                                 struct files_struct *fsp,
1540                                 struct lock_struct *plock)
1541 {
1542         VFS_FIND(strict_unlock);
1543         handle->fns->strict_unlock(handle, fsp, plock);
1544 }
1545
1546 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1547                                      const char *name,
1548                                      enum vfs_translate_direction direction,
1549                                      TALLOC_CTX *mem_ctx,
1550                                      char **mapped_name)
1551 {
1552         VFS_FIND(translate_name);
1553         return handle->fns->translate_name(handle, name, direction, mem_ctx,
1554                                            mapped_name);
1555 }
1556
1557 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1558                                   struct files_struct *fsp,
1559                                   uint32 security_info,
1560                                   struct security_descriptor **ppdesc)
1561 {
1562         VFS_FIND(fget_nt_acl);
1563         return handle->fns->fget_nt_acl(handle, fsp, security_info,
1564                                         ppdesc);
1565 }
1566
1567 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1568                                  const char *name,
1569                                  uint32 security_info,
1570                                  struct security_descriptor **ppdesc)
1571 {
1572         VFS_FIND(get_nt_acl);
1573         return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1574 }
1575
1576 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1577                                   struct files_struct *fsp,
1578                                   uint32 security_info_sent,
1579                                   const struct security_descriptor *psd)
1580 {
1581         VFS_FIND(fset_nt_acl);
1582         return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1583 }
1584
1585 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1586                            mode_t mode)
1587 {
1588         VFS_FIND(chmod_acl);
1589         return handle->fns->chmod_acl(handle, name, mode);
1590 }
1591
1592 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1593                             struct files_struct *fsp, mode_t mode)
1594 {
1595         VFS_FIND(fchmod_acl);
1596         return handle->fns->fchmod_acl(handle, fsp, mode);
1597 }
1598
1599 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1600                                    SMB_ACL_T theacl, int entry_id,
1601                                    SMB_ACL_ENTRY_T *entry_p)
1602 {
1603         VFS_FIND(sys_acl_get_entry);
1604         return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1605                                               entry_p);
1606 }
1607
1608 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1609                                       SMB_ACL_ENTRY_T entry_d,
1610                                       SMB_ACL_TAG_T *tag_type_p)
1611 {
1612         VFS_FIND(sys_acl_get_tag_type);
1613         return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1614 }
1615
1616 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1617                                      SMB_ACL_ENTRY_T entry_d,
1618                                      SMB_ACL_PERMSET_T *permset_p)
1619 {
1620         VFS_FIND(sys_acl_get_permset);
1621         return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1622 }
1623
1624 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1625                                           SMB_ACL_ENTRY_T entry_d)
1626 {
1627         VFS_FIND(sys_acl_get_qualifier);
1628         return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1629 }
1630
1631 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1632                                         const char *path_p,
1633                                         SMB_ACL_TYPE_T type)
1634 {
1635         VFS_FIND(sys_acl_get_file);
1636         return handle->fns->sys_acl_get_file(handle, path_p, type);
1637 }
1638
1639 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1640                                       struct files_struct *fsp)
1641 {
1642         VFS_FIND(sys_acl_get_fd);
1643         return handle->fns->sys_acl_get_fd(handle, fsp);
1644 }
1645
1646 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1647                                      SMB_ACL_PERMSET_T permset)
1648 {
1649         VFS_FIND(sys_acl_clear_perms);
1650         return handle->fns->sys_acl_clear_perms(handle, permset);
1651 }
1652
1653 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1654                                   SMB_ACL_PERMSET_T permset,
1655                                   SMB_ACL_PERM_T perm)
1656 {
1657         VFS_FIND(sys_acl_add_perm);
1658         return handle->fns->sys_acl_add_perm(handle, permset, perm);
1659 }
1660
1661 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1662                                     SMB_ACL_T theacl, ssize_t *plen)
1663 {
1664         VFS_FIND(sys_acl_to_text);
1665         return handle->fns->sys_acl_to_text(handle, theacl, plen);
1666 }
1667
1668 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1669                                     int count)
1670 {
1671         VFS_FIND(sys_acl_init);
1672         return handle->fns->sys_acl_init(handle, count);
1673 }
1674
1675 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1676                                       SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1677 {
1678         VFS_FIND(sys_acl_create_entry);
1679         return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1680 }
1681
1682 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1683                                       SMB_ACL_ENTRY_T entry,
1684                                       SMB_ACL_TAG_T tagtype)
1685 {
1686         VFS_FIND(sys_acl_set_tag_type);
1687         return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1688 }
1689
1690 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1691                                        SMB_ACL_ENTRY_T entry, void *qual)
1692 {
1693         VFS_FIND(sys_acl_set_qualifier);
1694         return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1695 }
1696
1697 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1698                                      SMB_ACL_ENTRY_T entry,
1699                                      SMB_ACL_PERMSET_T permset)
1700 {
1701         VFS_FIND(sys_acl_set_permset);
1702         return handle->fns->sys_acl_set_permset(handle, entry, permset);
1703 }
1704
1705 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1706                                SMB_ACL_T theacl)
1707 {
1708         VFS_FIND(sys_acl_valid);
1709         return handle->fns->sys_acl_valid(handle, theacl);
1710 }
1711
1712 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1713                                   const char *name, SMB_ACL_TYPE_T acltype,
1714                                   SMB_ACL_T theacl)
1715 {
1716         VFS_FIND(sys_acl_set_file);
1717         return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1718 }
1719
1720 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1721                                 struct files_struct *fsp, SMB_ACL_T theacl)
1722 {
1723         VFS_FIND(sys_acl_set_fd);
1724         return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1725 }
1726
1727 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1728                                          const char *path)
1729 {
1730         VFS_FIND(sys_acl_delete_def_file);
1731         return handle->fns->sys_acl_delete_def_file(handle, path);
1732 }
1733
1734 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1735                                   SMB_ACL_PERMSET_T permset,
1736                                   SMB_ACL_PERM_T perm)
1737 {
1738         VFS_FIND(sys_acl_get_perm);
1739         return handle->fns->sys_acl_get_perm(handle, permset, perm);
1740 }
1741
1742 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1743                                    char *text)
1744 {
1745         VFS_FIND(sys_acl_free_text);
1746         return handle->fns->sys_acl_free_text(handle, text);
1747 }
1748
1749 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1750                                   SMB_ACL_T posix_acl)
1751 {
1752         VFS_FIND(sys_acl_free_acl);
1753         return handle->fns->sys_acl_free_acl(handle, posix_acl);
1754 }
1755
1756 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1757                                         void *qualifier, SMB_ACL_TAG_T tagtype)
1758 {
1759         VFS_FIND(sys_acl_free_qualifier);
1760         return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1761 }
1762
1763 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1764                               const char *path, const char *name, void *value,
1765                               size_t size)
1766 {
1767         VFS_FIND(getxattr);
1768         return handle->fns->getxattr(handle, path, name, value, size);
1769 }
1770
1771 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1772                                const char *path, const char *name, void *value,
1773                                size_t size)
1774 {
1775         VFS_FIND(lgetxattr);
1776         return handle->fns->lgetxattr(handle, path, name, value, size);
1777 }
1778
1779 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1780                                struct files_struct *fsp, const char *name,
1781                                void *value, size_t size)
1782 {
1783         VFS_FIND(fgetxattr);
1784         return handle->fns->fgetxattr(handle, fsp, name, value, size);
1785 }
1786
1787 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1788                                const char *path, char *list, size_t size)
1789 {
1790         VFS_FIND(listxattr);
1791         return handle->fns->listxattr(handle, path, list, size);
1792 }
1793
1794 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1795                                 const char *path, char *list, size_t size)
1796 {
1797         VFS_FIND(llistxattr);
1798         return handle->fns->llistxattr(handle, path, list, size);
1799 }
1800
1801 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1802                                 struct files_struct *fsp, char *list,
1803                                 size_t size)
1804 {
1805         VFS_FIND(flistxattr);
1806         return handle->fns->flistxattr(handle, fsp, list, size);
1807 }
1808
1809 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1810                              const char *path, const char *name)
1811 {
1812         VFS_FIND(removexattr);
1813         return handle->fns->removexattr(handle, path, name);
1814 }
1815
1816 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1817                               const char *path, const char *name)
1818 {
1819         VFS_FIND(lremovexattr);
1820         return handle->fns->lremovexattr(handle, path, name);
1821 }
1822
1823 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1824                               struct files_struct *fsp, const char *name)
1825 {
1826         VFS_FIND(fremovexattr);
1827         return handle->fns->fremovexattr(handle, fsp, name);
1828 }
1829
1830 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1831                           const char *name, const void *value, size_t size,
1832                           int flags)
1833 {
1834         VFS_FIND(setxattr);
1835         return handle->fns->setxattr(handle, path, name, value, size, flags);
1836 }
1837
1838 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1839                            const char *name, const void *value, size_t size,
1840                            int flags)
1841 {
1842         VFS_FIND(lsetxattr);
1843         return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1844 }
1845
1846 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1847                            struct files_struct *fsp, const char *name,
1848                            const void *value, size_t size, int flags)
1849 {
1850         VFS_FIND(fsetxattr);
1851         return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1852 }
1853
1854 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1855                           struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1856 {
1857         VFS_FIND(aio_read);
1858         return handle->fns->aio_read(handle, fsp, aiocb);
1859 }
1860
1861 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1862                            struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1863 {
1864         VFS_FIND(aio_write);
1865         return handle->fns->aio_write(handle, fsp, aiocb);
1866 }
1867
1868 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1869                                    struct files_struct *fsp,
1870                                    SMB_STRUCT_AIOCB *aiocb)
1871 {
1872         VFS_FIND(aio_return_fn);
1873         return handle->fns->aio_return_fn(handle, fsp, aiocb);
1874 }
1875
1876 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1877                             struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1878 {
1879         VFS_FIND(aio_cancel);
1880         return handle->fns->aio_cancel(handle, fsp, aiocb);
1881 }
1882
1883 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1884                               struct files_struct *fsp,
1885                               SMB_STRUCT_AIOCB *aiocb)
1886 {
1887         VFS_FIND(aio_error_fn);
1888         return handle->fns->aio_error_fn(handle, fsp, aiocb);
1889 }
1890
1891 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1892                            struct files_struct *fsp, int op,
1893                            SMB_STRUCT_AIOCB *aiocb)
1894 {
1895         VFS_FIND(aio_fsync);
1896         return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1897 }
1898
1899 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1900                              struct files_struct *fsp,
1901                              const SMB_STRUCT_AIOCB * const aiocb[], int n,
1902                              const struct timespec *timeout)
1903 {
1904         VFS_FIND(aio_suspend);
1905         return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1906 }
1907
1908 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1909                             struct files_struct *fsp)
1910 {
1911         VFS_FIND(aio_force);
1912         return handle->fns->aio_force(handle, fsp);
1913 }
1914
1915 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1916                              const char *path, SMB_STRUCT_STAT *sbuf)
1917 {
1918         VFS_FIND(is_offline);
1919         return handle->fns->is_offline(handle, path, sbuf);
1920 }
1921
1922 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1923                              const char *path)
1924 {
1925         VFS_FIND(set_offline);
1926         return handle->fns->set_offline(handle, path);
1927 }