source3/smbd/vfs.c

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