examples/VFS/skel_opaque.c

   1 /*
   2  * Skeleton VFS module.  Implements dummy versions of all VFS
   3  * functions.
   4  *
   5  * Copyright (C) Tim Potter, 1999-2000
   6  * Copyright (C) Alexander Bokovoy, 2002
   7  * Copyright (C) Stefan (metze) Metzmacher, 2003
   8  * Copyright (C) Jeremy Allison 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
  24 #include "../source3/include/includes.h"
  25 #include "lib/util/tevent_ntstatus.h"
  26
  27 /* PLEASE,PLEASE READ THE VFS MODULES CHAPTER OF THE
  28    SAMBA DEVELOPERS GUIDE!!!!!!
  29  */
  30
  31 /* If you take this file as template for your module
  32  * you must re-implement every function.
  33  */
  34
  35 static int skel_connect(vfs_handle_struct *handle, const char *service,
  36                         const char *user)
  37 {
  38         errno = ENOSYS;
  39         return -1;
  40 }
  41
  42 static void skel_disconnect(vfs_handle_struct *handle)
  43 {
  44         ;
  45 }
  46
  47 static uint64_t skel_disk_free(vfs_handle_struct *handle, const char *path,
  48                                bool small_query, uint64_t *bsize,
  49                                uint64_t *dfree, uint64_t *dsize)
  50 {
  51         *bsize = 0;
  52         *dfree = 0;
  53         *dsize = 0;
  54         return 0;
  55 }
  56
  57 static int skel_get_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  58                           unid_t id, SMB_DISK_QUOTA *dq)
  59 {
  60         errno = ENOSYS;
  61         return -1;
  62 }
  63
  64 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  65                           unid_t id, SMB_DISK_QUOTA *dq)
  66 {
  67         errno = ENOSYS;
  68         return -1;
  69 }
  70
  71 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
  72                                      files_struct *fsp,
  73                                      struct shadow_copy_data *shadow_copy_data,
  74                                      bool labels)
  75 {
  76         errno = ENOSYS;
  77         return -1;
  78 }
  79
  80 static int skel_statvfs(struct vfs_handle_struct *handle,
  81                         const char *path, struct vfs_statvfs_struct *statbuf)
  82 {
  83         errno = ENOSYS;
  84         return -1;
  85 }
  86
  87 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
  88                                      enum timestamp_set_resolution *p_ts_res)
  89 {
  90         return 0;
  91 }
  92
  93 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
  94                                        struct dfs_GetDFSReferral *r)
  95 {
  96         return NT_STATUS_NOT_IMPLEMENTED;
  97 }
  98
  99 static DIR *skel_opendir(vfs_handle_struct *handle, const char *fname,
 100                          const char *mask, uint32 attr)
 101 {
 102         return NULL;
 103 }
 104
 105 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 106                            const char *mask, uint32 attr)
 107 {
 108         return NULL;
 109 }
 110
 111 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 112                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 113 {
 114         return NULL;
 115 }
 116
 117 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 118 {
 119         ;
 120 }
 121
 122 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 123 {
 124         return (long)-1;
 125 }
 126
 127 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 128 {
 129         ;
 130 }
 131
 132 static int skel_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode)
 133 {
 134         errno = ENOSYS;
 135         return -1;
 136 }
 137
 138 static int skel_rmdir(vfs_handle_struct *handle, const char *path)
 139 {
 140         errno = ENOSYS;
 141         return -1;
 142 }
 143
 144 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 145 {
 146         errno = ENOSYS;
 147         return -1;
 148 }
 149
 150 static void skel_init_search_op(struct vfs_handle_struct *handle, DIR *dirp)
 151 {
 152         ;
 153 }
 154
 155 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 156                      files_struct *fsp, int flags, mode_t mode)
 157 {
 158         errno = ENOSYS;
 159         return -1;
 160 }
 161
 162 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 163                                  struct smb_request *req,
 164                                  uint16_t root_dir_fid,
 165                                  struct smb_filename *smb_fname,
 166                                  uint32_t access_mask,
 167                                  uint32_t share_access,
 168                                  uint32_t create_disposition,
 169                                  uint32_t create_options,
 170                                  uint32_t file_attributes,
 171                                  uint32_t oplock_request,
 172                                  struct smb2_lease *lease,
 173                                  uint64_t allocation_size,
 174                                  uint32_t private_flags,
 175                                  struct security_descriptor *sd,
 176                                  struct ea_list *ea_list,
 177                                  files_struct **result, int *pinfo)
 178 {
 179         return NT_STATUS_NOT_IMPLEMENTED;
 180 }
 181
 182 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 183 {
 184         errno = ENOSYS;
 185         return -1;
 186 }
 187
 188 static ssize_t skel_vfs_read(vfs_handle_struct *handle, files_struct *fsp,
 189                              void *data, size_t n)
 190 {
 191         errno = ENOSYS;
 192         return -1;
 193 }
 194
 195 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 196                           void *data, size_t n, off_t offset)
 197 {
 198         errno = ENOSYS;
 199         return -1;
 200 }
 201
 202 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 203                                           TALLOC_CTX *mem_ctx,
 204                                           struct tevent_context *ev,
 205                                           struct files_struct *fsp,
 206                                           void *data, size_t n, off_t offset)
 207 {
 208         return NULL;
 209 }
 210
 211 static ssize_t skel_pread_recv(struct tevent_req *req, int *err)
 212 {
 213         *err = ENOSYS;
 214         return -1;
 215 }
 216
 217 static ssize_t skel_write(vfs_handle_struct *handle, files_struct *fsp,
 218                           const void *data, size_t n)
 219 {
 220         errno = ENOSYS;
 221         return -1;
 222 }
 223
 224 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 225                            const void *data, size_t n, off_t offset)
 226 {
 227         errno = ENOSYS;
 228         return -1;
 229 }
 230
 231 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 232                                            TALLOC_CTX *mem_ctx,
 233                                            struct tevent_context *ev,
 234                                            struct files_struct *fsp,
 235                                            const void *data,
 236                                            size_t n, off_t offset)
 237 {
 238         return NULL;
 239 }
 240
 241 static ssize_t skel_pwrite_recv(struct tevent_req *req, int *err)
 242 {
 243         *err = ENOSYS;
 244         return -1;
 245 }
 246
 247 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 248                         off_t offset, int whence)
 249 {
 250         errno = ENOSYS;
 251         return (off_t) - 1;
 252 }
 253
 254 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 255                              files_struct *fromfsp, const DATA_BLOB *hdr,
 256                              off_t offset, size_t n)
 257 {
 258         errno = ENOSYS;
 259         return -1;
 260 }
 261
 262 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 263                              files_struct *tofsp, off_t offset, size_t n)
 264 {
 265         errno = ENOSYS;
 266         return -1;
 267 }
 268
 269 static int skel_rename(vfs_handle_struct *handle,
 270                        const struct smb_filename *smb_fname_src,
 271                        const struct smb_filename *smb_fname_dst)
 272 {
 273         errno = ENOSYS;
 274         return -1;
 275 }
 276
 277 static int skel_fsync(vfs_handle_struct *handle, files_struct *fsp)
 278 {
 279         errno = ENOSYS;
 280         return -1;
 281 }
 282
 283 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 284                                           TALLOC_CTX *mem_ctx,
 285                                           struct tevent_context *ev,
 286                                           struct files_struct *fsp)
 287 {
 288         return NULL;
 289 }
 290
 291 static int skel_fsync_recv(struct tevent_req *req, int *err)
 292 {
 293         *err = ENOSYS;
 294         return -1;
 295 }
 296
 297 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 298 {
 299         errno = ENOSYS;
 300         return -1;
 301 }
 302
 303 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 304                       SMB_STRUCT_STAT *sbuf)
 305 {
 306         errno = ENOSYS;
 307         return -1;
 308 }
 309
 310 static int skel_lstat(vfs_handle_struct *handle,
 311                       struct smb_filename *smb_fname)
 312 {
 313         errno = ENOSYS;
 314         return -1;
 315 }
 316
 317 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 318                                     struct files_struct *fsp,
 319                                     const SMB_STRUCT_STAT *sbuf)
 320 {
 321         errno = ENOSYS;
 322         return -1;
 323 }
 324
 325 static int skel_unlink(vfs_handle_struct *handle,
 326                        const struct smb_filename *smb_fname)
 327 {
 328         errno = ENOSYS;
 329         return -1;
 330 }
 331
 332 static int skel_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
 333 {
 334         errno = ENOSYS;
 335         return -1;
 336 }
 337
 338 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 339                        mode_t mode)
 340 {
 341         errno = ENOSYS;
 342         return -1;
 343 }
 344
 345 static int skel_chown(vfs_handle_struct *handle, const char *path,
 346                       uid_t uid, gid_t gid)
 347 {
 348         errno = ENOSYS;
 349         return -1;
 350 }
 351
 352 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 353                        uid_t uid, gid_t gid)
 354 {
 355         errno = ENOSYS;
 356         return -1;
 357 }
 358
 359 static int skel_lchown(vfs_handle_struct *handle, const char *path,
 360                        uid_t uid, gid_t gid)
 361 {
 362         errno = ENOSYS;
 363         return -1;
 364 }
 365
 366 static int skel_chdir(vfs_handle_struct *handle, const char *path)
 367 {
 368         errno = ENOSYS;
 369         return -1;
 370 }
 371
 372 static char *skel_getwd(vfs_handle_struct *handle)
 373 {
 374         errno = ENOSYS;
 375         return NULL;
 376 }
 377
 378 static int skel_ntimes(vfs_handle_struct *handle,
 379                        const struct smb_filename *smb_fname,
 380                        struct smb_file_time *ft)
 381 {
 382         errno = ENOSYS;
 383         return -1;
 384 }
 385
 386 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 387                           off_t offset)
 388 {
 389         errno = ENOSYS;
 390         return -1;
 391 }
 392
 393 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 394                           enum vfs_fallocate_mode mode, off_t offset, off_t len)
 395 {
 396         errno = ENOSYS;
 397         return -1;
 398 }
 399
 400 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 401                       off_t offset, off_t count, int type)
 402 {
 403         errno = ENOSYS;
 404         return false;
 405 }
 406
 407 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 408                              struct files_struct *fsp,
 409                              uint32 share_mode, uint32 access_mask)
 410 {
 411         errno = ENOSYS;
 412         return -1;
 413 }
 414
 415 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 416                                struct files_struct *fsp, int leasetype)
 417 {
 418         errno = ENOSYS;
 419         return -1;
 420 }
 421
 422 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 423                          off_t *poffset, off_t *pcount, int *ptype,
 424                          pid_t *ppid)
 425 {
 426         errno = ENOSYS;
 427         return false;
 428 }
 429
 430 static int skel_symlink(vfs_handle_struct *handle, const char *oldpath,
 431                         const char *newpath)
 432 {
 433         errno = ENOSYS;
 434         return -1;
 435 }
 436
 437 static int skel_vfs_readlink(vfs_handle_struct *handle, const char *path,
 438                              char *buf, size_t bufsiz)
 439 {
 440         errno = ENOSYS;
 441         return -1;
 442 }
 443
 444 static int skel_link(vfs_handle_struct *handle, const char *oldpath,
 445                      const char *newpath)
 446 {
 447         errno = ENOSYS;
 448         return -1;
 449 }
 450
 451 static int skel_mknod(vfs_handle_struct *handle, const char *path, mode_t mode,
 452                       SMB_DEV_T dev)
 453 {
 454         errno = ENOSYS;
 455         return -1;
 456 }
 457
 458 static char *skel_realpath(vfs_handle_struct *handle, const char *path)
 459 {
 460         errno = ENOSYS;
 461         return NULL;
 462 }
 463
 464 static NTSTATUS skel_notify_watch(struct vfs_handle_struct *handle,
 465                                   struct sys_notify_context *ctx,
 466                                   const char *path,
 467                                   uint32_t *filter,
 468                                   uint32_t *subdir_filter,
 469                                   void (*callback) (struct sys_notify_context *
 470                                                     ctx, void *private_data,
 471                                                     struct notify_event *ev),
 472                                   void *private_data, void *handle_p)
 473 {
 474         return NT_STATUS_NOT_IMPLEMENTED;
 475 }
 476
 477 static int skel_chflags(vfs_handle_struct *handle, const char *path,
 478                         uint flags)
 479 {
 480         errno = ENOSYS;
 481         return -1;
 482 }
 483
 484 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 485                                           const SMB_STRUCT_STAT *sbuf)
 486 {
 487         struct file_id id;
 488         ZERO_STRUCT(id);
 489         errno = ENOSYS;
 490         return id;
 491 }
 492
 493 struct skel_cc_state {
 494         uint64_t unused;
 495 };
 496 static struct tevent_req *skel_copy_chunk_send(struct vfs_handle_struct *handle,
 497                                                TALLOC_CTX *mem_ctx,
 498                                                struct tevent_context *ev,
 499                                                struct files_struct *src_fsp,
 500                                                off_t src_off,
 501                                                struct files_struct *dest_fsp,
 502                                                off_t dest_off,
 503                                                off_t num)
 504 {
 505         struct tevent_req *req;
 506         struct skel_cc_state *cc_state;
 507
 508         req = tevent_req_create(mem_ctx, &cc_state, struct skel_cc_state);
 509         if (req == NULL) {
 510                 return NULL;
 511         }
 512
 513         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 514         return tevent_req_post(req, ev);
 515 }
 516
 517 static NTSTATUS skel_copy_chunk_recv(struct vfs_handle_struct *handle,
 518                                      struct tevent_req *req,
 519                                      off_t *copied)
 520 {
 521         NTSTATUS status;
 522
 523         if (tevent_req_is_nterror(req, &status)) {
 524                 tevent_req_received(req);
 525                 return status;
 526         }
 527         tevent_req_received(req);
 528
 529         return NT_STATUS_OK;
 530 }
 531
 532 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 533                                      TALLOC_CTX *mem_ctx,
 534                                      struct files_struct *fsp,
 535                                      struct smb_filename *smb_fname,
 536                                      uint16_t *_compression_fmt)
 537 {
 538         return NT_STATUS_INVALID_DEVICE_REQUEST;
 539 }
 540
 541 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 542                                      TALLOC_CTX *mem_ctx,
 543                                      struct files_struct *fsp,
 544                                      uint16_t compression_fmt)
 545 {
 546         return NT_STATUS_INVALID_DEVICE_REQUEST;
 547 }
 548
 549 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 550                                 struct files_struct *fsp,
 551                                 const char *fname,
 552                                 TALLOC_CTX *mem_ctx,
 553                                 unsigned int *num_streams,
 554                                 struct stream_struct **streams)
 555 {
 556         return NT_STATUS_NOT_IMPLEMENTED;
 557 }
 558
 559 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 560                                   const char *path,
 561                                   const char *name,
 562                                   TALLOC_CTX *mem_ctx, char **found_name)
 563 {
 564         errno = ENOSYS;
 565         return -1;
 566 }
 567
 568 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 569                                     const char *filename)
 570 {
 571         errno = ENOSYS;
 572         return NULL;
 573 }
 574
 575 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 576                                       struct byte_range_lock *br_lck,
 577                                       struct lock_struct *plock,
 578                                       bool blocking_lock)
 579 {
 580         return NT_STATUS_NOT_IMPLEMENTED;
 581 }
 582
 583 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 584                                     struct messaging_context *msg_ctx,
 585                                     struct byte_range_lock *br_lck,
 586                                     const struct lock_struct *plock)
 587 {
 588         errno = ENOSYS;
 589         return false;
 590 }
 591
 592 static bool skel_brl_cancel_windows(struct vfs_handle_struct *handle,
 593                                     struct byte_range_lock *br_lck,
 594                                     struct lock_struct *plock)
 595 {
 596         errno = ENOSYS;
 597         return false;
 598 }
 599
 600 static bool skel_strict_lock(struct vfs_handle_struct *handle,
 601                              struct files_struct *fsp,
 602                              struct lock_struct *plock)
 603 {
 604         errno = ENOSYS;
 605         return false;
 606 }
 607
 608 static void skel_strict_unlock(struct vfs_handle_struct *handle,
 609                                struct files_struct *fsp,
 610                                struct lock_struct *plock)
 611 {
 612         ;
 613 }
 614
 615 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 616                                     const char *mapped_name,
 617                                     enum vfs_translate_direction direction,
 618                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 619 {
 620         return NT_STATUS_NOT_IMPLEMENTED;
 621 }
 622
 623 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 624                            struct files_struct *fsp,
 625                            TALLOC_CTX *ctx,
 626                            uint32_t function,
 627                            uint16_t req_flags,  /* Needed for UNICODE ... */
 628                            const uint8_t *_in_data,
 629                            uint32_t in_len,
 630                            uint8_t **_out_data,
 631                            uint32_t max_out_len, uint32_t *out_len)
 632 {
 633         return NT_STATUS_NOT_IMPLEMENTED;
 634 }
 635
 636 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 637                                  uint32 security_info,
 638                                  TALLOC_CTX *mem_ctx,
 639                                  struct security_descriptor **ppdesc)
 640 {
 641         return NT_STATUS_NOT_IMPLEMENTED;
 642 }
 643
 644 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
 645                                 const char *name, uint32 security_info,
 646                                 TALLOC_CTX *mem_ctx,
 647                                 struct security_descriptor **ppdesc)
 648 {
 649         return NT_STATUS_NOT_IMPLEMENTED;
 650 }
 651
 652 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 653                                  uint32 security_info_sent,
 654                                  const struct security_descriptor *psd)
 655 {
 656         return NT_STATUS_NOT_IMPLEMENTED;
 657 }
 658
 659 static int skel_chmod_acl(vfs_handle_struct *handle, const char *name,
 660                           mode_t mode)
 661 {
 662         errno = ENOSYS;
 663         return -1;
 664 }
 665
 666 static int skel_fchmod_acl(vfs_handle_struct *handle, files_struct *fsp,
 667                            mode_t mode)
 668 {
 669         errno = ENOSYS;
 670         return -1;
 671 }
 672
 673 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
 674                                        const char *path_p,
 675                                        SMB_ACL_TYPE_T type,
 676                                        TALLOC_CTX *mem_ctx)
 677 {
 678         errno = ENOSYS;
 679         return (SMB_ACL_T) NULL;
 680 }
 681
 682 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
 683                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
 684 {
 685         errno = ENOSYS;
 686         return (SMB_ACL_T) NULL;
 687 }
 688
 689 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
 690                                       const char *path_p, TALLOC_CTX *mem_ctx,
 691                                       char **blob_description, DATA_BLOB *blob)
 692 {
 693         errno = ENOSYS;
 694         return -1;
 695 }
 696
 697 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
 698                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
 699                                     char **blob_description, DATA_BLOB *blob)
 700 {
 701         errno = ENOSYS;
 702         return -1;
 703 }
 704
 705 static int skel_sys_acl_set_file(vfs_handle_struct *handle, const char *name,
 706                                  SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
 707 {
 708         errno = ENOSYS;
 709         return -1;
 710 }
 711
 712 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
 713                                SMB_ACL_T theacl)
 714 {
 715         errno = ENOSYS;
 716         return -1;
 717 }
 718
 719 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
 720                                         const char *path)
 721 {
 722         errno = ENOSYS;
 723         return -1;
 724 }
 725
 726 static ssize_t skel_getxattr(vfs_handle_struct *handle, const char *path,
 727                              const char *name, void *value, size_t size)
 728 {
 729         errno = ENOSYS;
 730         return -1;
 731 }
 732
 733 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
 734                               struct files_struct *fsp, const char *name,
 735                               void *value, size_t size)
 736 {
 737         errno = ENOSYS;
 738         return -1;
 739 }
 740
 741 static ssize_t skel_listxattr(vfs_handle_struct *handle, const char *path,
 742                               char *list, size_t size)
 743 {
 744         errno = ENOSYS;
 745         return -1;
 746 }
 747
 748 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
 749                                struct files_struct *fsp, char *list,
 750                                size_t size)
 751 {
 752         errno = ENOSYS;
 753         return -1;
 754 }
 755
 756 static int skel_removexattr(vfs_handle_struct *handle, const char *path,
 757                             const char *name)
 758 {
 759         errno = ENOSYS;
 760         return -1;
 761 }
 762
 763 static int skel_fremovexattr(vfs_handle_struct *handle,
 764                              struct files_struct *fsp, const char *name)
 765 {
 766         errno = ENOSYS;
 767         return -1;
 768         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
 769 }
 770
 771 static int skel_setxattr(vfs_handle_struct *handle, const char *path,
 772                          const char *name, const void *value, size_t size,
 773                          int flags)
 774 {
 775         errno = ENOSYS;
 776         return -1;
 777 }
 778
 779 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
 780                           const char *name, const void *value, size_t size,
 781                           int flags)
 782 {
 783         errno = ENOSYS;
 784         return -1;
 785 }
 786
 787 static bool skel_aio_force(struct vfs_handle_struct *handle,
 788                            struct files_struct *fsp)
 789 {
 790         errno = ENOSYS;
 791         return false;
 792 }
 793
 794 static bool skel_is_offline(struct vfs_handle_struct *handle,
 795                             const struct smb_filename *fname,
 796                             SMB_STRUCT_STAT *sbuf)
 797 {
 798         errno = ENOSYS;
 799         return false;
 800 }
 801
 802 static int skel_set_offline(struct vfs_handle_struct *handle,
 803                             const struct smb_filename *fname)
 804 {
 805         errno = ENOSYS;
 806         return -1;
 807 }
 808
 809 /* VFS operations structure */
 810
 811 struct vfs_fn_pointers skel_opaque_fns = {
 812         /* Disk operations */
 813
 814         .connect_fn = skel_connect,
 815         .disconnect_fn = skel_disconnect,
 816         .disk_free_fn = skel_disk_free,
 817         .get_quota_fn = skel_get_quota,
 818         .set_quota_fn = skel_set_quota,
 819         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
 820         .statvfs_fn = skel_statvfs,
 821         .fs_capabilities_fn = skel_fs_capabilities,
 822         .get_dfs_referrals_fn = skel_get_dfs_referrals,
 823
 824         /* Directory operations */
 825
 826         .opendir_fn = skel_opendir,
 827         .fdopendir_fn = skel_fdopendir,
 828         .readdir_fn = skel_readdir,
 829         .seekdir_fn = skel_seekdir,
 830         .telldir_fn = skel_telldir,
 831         .rewind_dir_fn = skel_rewind_dir,
 832         .mkdir_fn = skel_mkdir,
 833         .rmdir_fn = skel_rmdir,
 834         .closedir_fn = skel_closedir,
 835         .init_search_op_fn = skel_init_search_op,
 836
 837         /* File operations */
 838
 839         .open_fn = skel_open,
 840         .create_file_fn = skel_create_file,
 841         .close_fn = skel_close_fn,
 842         .read_fn = skel_vfs_read,
 843         .pread_fn = skel_pread,
 844         .pread_send_fn = skel_pread_send,
 845         .pread_recv_fn = skel_pread_recv,
 846         .write_fn = skel_write,
 847         .pwrite_fn = skel_pwrite,
 848         .pwrite_send_fn = skel_pwrite_send,
 849         .pwrite_recv_fn = skel_pwrite_recv,
 850         .lseek_fn = skel_lseek,
 851         .sendfile_fn = skel_sendfile,
 852         .recvfile_fn = skel_recvfile,
 853         .rename_fn = skel_rename,
 854         .fsync_fn = skel_fsync,
 855         .fsync_send_fn = skel_fsync_send,
 856         .fsync_recv_fn = skel_fsync_recv,
 857         .stat_fn = skel_stat,
 858         .fstat_fn = skel_fstat,
 859         .lstat_fn = skel_lstat,
 860         .get_alloc_size_fn = skel_get_alloc_size,
 861         .unlink_fn = skel_unlink,
 862         .chmod_fn = skel_chmod,
 863         .fchmod_fn = skel_fchmod,
 864         .chown_fn = skel_chown,
 865         .fchown_fn = skel_fchown,
 866         .lchown_fn = skel_lchown,
 867         .chdir_fn = skel_chdir,
 868         .getwd_fn = skel_getwd,
 869         .ntimes_fn = skel_ntimes,
 870         .ftruncate_fn = skel_ftruncate,
 871         .fallocate_fn = skel_fallocate,
 872         .lock_fn = skel_lock,
 873         .kernel_flock_fn = skel_kernel_flock,
 874         .linux_setlease_fn = skel_linux_setlease,
 875         .getlock_fn = skel_getlock,
 876         .symlink_fn = skel_symlink,
 877         .readlink_fn = skel_vfs_readlink,
 878         .link_fn = skel_link,
 879         .mknod_fn = skel_mknod,
 880         .realpath_fn = skel_realpath,
 881         .notify_watch_fn = skel_notify_watch,
 882         .chflags_fn = skel_chflags,
 883         .file_id_create_fn = skel_file_id_create,
 884         .copy_chunk_send_fn = skel_copy_chunk_send,
 885         .copy_chunk_recv_fn = skel_copy_chunk_recv,
 886         .get_compression_fn = skel_get_compression,
 887         .set_compression_fn = skel_set_compression,
 888
 889         .streaminfo_fn = skel_streaminfo,
 890         .get_real_filename_fn = skel_get_real_filename,
 891         .connectpath_fn = skel_connectpath,
 892         .brl_lock_windows_fn = skel_brl_lock_windows,
 893         .brl_unlock_windows_fn = skel_brl_unlock_windows,
 894         .brl_cancel_windows_fn = skel_brl_cancel_windows,
 895         .strict_lock_fn = skel_strict_lock,
 896         .strict_unlock_fn = skel_strict_unlock,
 897         .translate_name_fn = skel_translate_name,
 898         .fsctl_fn = skel_fsctl,
 899
 900         /* NT ACL operations. */
 901
 902         .fget_nt_acl_fn = skel_fget_nt_acl,
 903         .get_nt_acl_fn = skel_get_nt_acl,
 904         .fset_nt_acl_fn = skel_fset_nt_acl,
 905
 906         /* POSIX ACL operations. */
 907
 908         .chmod_acl_fn = skel_chmod_acl,
 909         .fchmod_acl_fn = skel_fchmod_acl,
 910
 911         .sys_acl_get_file_fn = skel_sys_acl_get_file,
 912         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
 913         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
 914         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
 915         .sys_acl_set_file_fn = skel_sys_acl_set_file,
 916         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
 917         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
 918
 919         /* EA operations. */
 920         .getxattr_fn = skel_getxattr,
 921         .fgetxattr_fn = skel_fgetxattr,
 922         .listxattr_fn = skel_listxattr,
 923         .flistxattr_fn = skel_flistxattr,
 924         .removexattr_fn = skel_removexattr,
 925         .fremovexattr_fn = skel_fremovexattr,
 926         .setxattr_fn = skel_setxattr,
 927         .fsetxattr_fn = skel_fsetxattr,
 928
 929         /* aio operations */
 930         .aio_force_fn = skel_aio_force,
 931
 932         /* offline operations */
 933         .is_offline_fn = skel_is_offline,
 934         .set_offline_fn = skel_set_offline
 935 };
 936
 937 NTSTATUS vfs_skel_opaque_init(void)
 938 {
 939         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_opaque",
 940                                 &skel_opaque_fns);
 941 }