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