source3/smbd/vfs.c

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