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                                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, const char *path,
  58                           enum SMB_QUOTA_TYPE qtype, unid_t id,
  59                           SMB_DISK_QUOTA *dq)
  60 {
  61         errno = ENOSYS;
  62         return -1;
  63 }
  64
  65 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  66                           unid_t id, SMB_DISK_QUOTA *dq)
  67 {
  68         errno = ENOSYS;
  69         return -1;
  70 }
  71
  72 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
  73                                      files_struct *fsp,
  74                                      struct shadow_copy_data *shadow_copy_data,
  75                                      bool labels)
  76 {
  77         errno = ENOSYS;
  78         return -1;
  79 }
  80
  81 static int skel_statvfs(struct vfs_handle_struct *handle,
  82                         const char *path, struct vfs_statvfs_struct *statbuf)
  83 {
  84         errno = ENOSYS;
  85         return -1;
  86 }
  87
  88 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
  89                                      enum timestamp_set_resolution *p_ts_res)
  90 {
  91         return 0;
  92 }
  93
  94 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
  95                                        struct dfs_GetDFSReferral *r)
  96 {
  97         return NT_STATUS_NOT_IMPLEMENTED;
  98 }
  99
 100 static DIR *skel_opendir(vfs_handle_struct *handle,
 101                         const struct smb_filename *smb_fname,
 102                         const char *mask,
 103                         uint32_t attr)
 104 {
 105         return NULL;
 106 }
 107
 108 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
 109                                      TALLOC_CTX *mem_ctx,
 110                                      const char *service_path,
 111                                      char **base_volume)
 112 {
 113         return NT_STATUS_NOT_SUPPORTED;
 114 }
 115
 116 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
 117                                  TALLOC_CTX *mem_ctx,
 118                                  const char *base_volume,
 119                                  time_t *tstamp,
 120                                  bool rw,
 121                                  char **base_path,
 122                                  char **snap_path)
 123 {
 124         return NT_STATUS_NOT_SUPPORTED;
 125 }
 126
 127 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
 128                                  TALLOC_CTX *mem_ctx,
 129                                  char *base_path,
 130                                  char *snap_path)
 131 {
 132         return NT_STATUS_NOT_SUPPORTED;
 133 }
 134
 135 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 136                            const char *mask, uint32_t attr)
 137 {
 138         return NULL;
 139 }
 140
 141 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 142                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 143 {
 144         return NULL;
 145 }
 146
 147 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 148 {
 149         ;
 150 }
 151
 152 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 153 {
 154         return (long)-1;
 155 }
 156
 157 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 158 {
 159         ;
 160 }
 161
 162 static int skel_mkdir(vfs_handle_struct *handle,
 163                 const struct smb_filename *smb_fname,
 164                 mode_t mode)
 165 {
 166         errno = ENOSYS;
 167         return -1;
 168 }
 169
 170 static int skel_rmdir(vfs_handle_struct *handle,
 171                 const struct smb_filename *smb_fname)
 172 {
 173         errno = ENOSYS;
 174         return -1;
 175 }
 176
 177 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 178 {
 179         errno = ENOSYS;
 180         return -1;
 181 }
 182
 183 static void skel_init_search_op(struct vfs_handle_struct *handle, DIR *dirp)
 184 {
 185         ;
 186 }
 187
 188 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 189                      files_struct *fsp, int flags, mode_t mode)
 190 {
 191         errno = ENOSYS;
 192         return -1;
 193 }
 194
 195 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 196                                  struct smb_request *req,
 197                                  uint16_t root_dir_fid,
 198                                  struct smb_filename *smb_fname,
 199                                  uint32_t access_mask,
 200                                  uint32_t share_access,
 201                                  uint32_t create_disposition,
 202                                  uint32_t create_options,
 203                                  uint32_t file_attributes,
 204                                  uint32_t oplock_request,
 205                                  struct smb2_lease *lease,
 206                                  uint64_t allocation_size,
 207                                  uint32_t private_flags,
 208                                  struct security_descriptor *sd,
 209                                  struct ea_list *ea_list,
 210                                  files_struct **result, int *pinfo,
 211                                  const struct smb2_create_blobs *in_context_blobs,
 212                                  struct smb2_create_blobs *out_context_blobs)
 213 {
 214         return NT_STATUS_NOT_IMPLEMENTED;
 215 }
 216
 217 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 218 {
 219         errno = ENOSYS;
 220         return -1;
 221 }
 222
 223 static ssize_t skel_vfs_read(vfs_handle_struct *handle, files_struct *fsp,
 224                              void *data, size_t n)
 225 {
 226         errno = ENOSYS;
 227         return -1;
 228 }
 229
 230 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 231                           void *data, size_t n, off_t offset)
 232 {
 233         errno = ENOSYS;
 234         return -1;
 235 }
 236
 237 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 238                                           TALLOC_CTX *mem_ctx,
 239                                           struct tevent_context *ev,
 240                                           struct files_struct *fsp,
 241                                           void *data, size_t n, off_t offset)
 242 {
 243         return NULL;
 244 }
 245
 246 static ssize_t skel_pread_recv(struct tevent_req *req,
 247                                struct vfs_aio_state *vfs_aio_state)
 248 {
 249         vfs_aio_state->error = ENOSYS;
 250         return -1;
 251 }
 252
 253 static ssize_t skel_write(vfs_handle_struct *handle, files_struct *fsp,
 254                           const void *data, size_t n)
 255 {
 256         errno = ENOSYS;
 257         return -1;
 258 }
 259
 260 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 261                            const void *data, size_t n, off_t offset)
 262 {
 263         errno = ENOSYS;
 264         return -1;
 265 }
 266
 267 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 268                                            TALLOC_CTX *mem_ctx,
 269                                            struct tevent_context *ev,
 270                                            struct files_struct *fsp,
 271                                            const void *data,
 272                                            size_t n, off_t offset)
 273 {
 274         return NULL;
 275 }
 276
 277 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 278                                 struct vfs_aio_state *vfs_aio_state)
 279 {
 280         vfs_aio_state->error = ENOSYS;
 281         return -1;
 282 }
 283
 284 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 285                         off_t offset, int whence)
 286 {
 287         errno = ENOSYS;
 288         return (off_t) - 1;
 289 }
 290
 291 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 292                              files_struct *fromfsp, const DATA_BLOB *hdr,
 293                              off_t offset, size_t n)
 294 {
 295         errno = ENOSYS;
 296         return -1;
 297 }
 298
 299 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 300                              files_struct *tofsp, off_t offset, size_t n)
 301 {
 302         errno = ENOSYS;
 303         return -1;
 304 }
 305
 306 static int skel_rename(vfs_handle_struct *handle,
 307                        const struct smb_filename *smb_fname_src,
 308                        const struct smb_filename *smb_fname_dst)
 309 {
 310         errno = ENOSYS;
 311         return -1;
 312 }
 313
 314 static int skel_fsync(vfs_handle_struct *handle, files_struct *fsp)
 315 {
 316         errno = ENOSYS;
 317         return -1;
 318 }
 319
 320 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 321                                           TALLOC_CTX *mem_ctx,
 322                                           struct tevent_context *ev,
 323                                           struct files_struct *fsp)
 324 {
 325         return NULL;
 326 }
 327
 328 static int skel_fsync_recv(struct tevent_req *req,
 329                            struct vfs_aio_state *vfs_aio_state)
 330 {
 331         vfs_aio_state->error = ENOSYS;
 332         return -1;
 333 }
 334
 335 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 336 {
 337         errno = ENOSYS;
 338         return -1;
 339 }
 340
 341 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 342                       SMB_STRUCT_STAT *sbuf)
 343 {
 344         errno = ENOSYS;
 345         return -1;
 346 }
 347
 348 static int skel_lstat(vfs_handle_struct *handle,
 349                       struct smb_filename *smb_fname)
 350 {
 351         errno = ENOSYS;
 352         return -1;
 353 }
 354
 355 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 356                                     struct files_struct *fsp,
 357                                     const SMB_STRUCT_STAT *sbuf)
 358 {
 359         errno = ENOSYS;
 360         return -1;
 361 }
 362
 363 static int skel_unlink(vfs_handle_struct *handle,
 364                        const struct smb_filename *smb_fname)
 365 {
 366         errno = ENOSYS;
 367         return -1;
 368 }
 369
 370 static int skel_chmod(vfs_handle_struct *handle,
 371                         const struct smb_filename *smb_fname,
 372                         mode_t mode)
 373 {
 374         errno = ENOSYS;
 375         return -1;
 376 }
 377
 378 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 379                        mode_t mode)
 380 {
 381         errno = ENOSYS;
 382         return -1;
 383 }
 384
 385 static int skel_chown(vfs_handle_struct *handle,
 386                         const struct smb_filename *smb_fname,
 387                         uid_t uid,
 388                         gid_t gid)
 389 {
 390         errno = ENOSYS;
 391         return -1;
 392 }
 393
 394 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 395                        uid_t uid, gid_t gid)
 396 {
 397         errno = ENOSYS;
 398         return -1;
 399 }
 400
 401 static int skel_lchown(vfs_handle_struct *handle,
 402                         const struct smb_filename *smb_fname,
 403                         uid_t uid,
 404                         gid_t gid)
 405 {
 406         errno = ENOSYS;
 407         return -1;
 408 }
 409
 410 static int skel_chdir(vfs_handle_struct *handle, const char *path)
 411 {
 412         errno = ENOSYS;
 413         return -1;
 414 }
 415
 416 static char *skel_getwd(vfs_handle_struct *handle)
 417 {
 418         errno = ENOSYS;
 419         return NULL;
 420 }
 421
 422 static int skel_ntimes(vfs_handle_struct *handle,
 423                        const struct smb_filename *smb_fname,
 424                        struct smb_file_time *ft)
 425 {
 426         errno = ENOSYS;
 427         return -1;
 428 }
 429
 430 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 431                           off_t offset)
 432 {
 433         errno = ENOSYS;
 434         return -1;
 435 }
 436
 437 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 438                           uint32_t mode, off_t offset, off_t len)
 439 {
 440         errno = ENOSYS;
 441         return -1;
 442 }
 443
 444 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 445                       off_t offset, off_t count, int type)
 446 {
 447         errno = ENOSYS;
 448         return false;
 449 }
 450
 451 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 452                              struct files_struct *fsp,
 453                              uint32_t share_mode, uint32_t access_mask)
 454 {
 455         errno = ENOSYS;
 456         return -1;
 457 }
 458
 459 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 460                                struct files_struct *fsp, int leasetype)
 461 {
 462         errno = ENOSYS;
 463         return -1;
 464 }
 465
 466 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 467                          off_t *poffset, off_t *pcount, int *ptype,
 468                          pid_t *ppid)
 469 {
 470         errno = ENOSYS;
 471         return false;
 472 }
 473
 474 static int skel_symlink(vfs_handle_struct *handle, const char *oldpath,
 475                         const char *newpath)
 476 {
 477         errno = ENOSYS;
 478         return -1;
 479 }
 480
 481 static int skel_vfs_readlink(vfs_handle_struct *handle, const char *path,
 482                              char *buf, size_t bufsiz)
 483 {
 484         errno = ENOSYS;
 485         return -1;
 486 }
 487
 488 static int skel_link(vfs_handle_struct *handle, const char *oldpath,
 489                      const char *newpath)
 490 {
 491         errno = ENOSYS;
 492         return -1;
 493 }
 494
 495 static int skel_mknod(vfs_handle_struct *handle, const char *path, mode_t mode,
 496                       SMB_DEV_T dev)
 497 {
 498         errno = ENOSYS;
 499         return -1;
 500 }
 501
 502 static char *skel_realpath(vfs_handle_struct *handle, const char *path)
 503 {
 504         errno = ENOSYS;
 505         return NULL;
 506 }
 507
 508 static int skel_chflags(vfs_handle_struct *handle, const char *path,
 509                         uint flags)
 510 {
 511         errno = ENOSYS;
 512         return -1;
 513 }
 514
 515 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 516                                           const SMB_STRUCT_STAT *sbuf)
 517 {
 518         struct file_id id;
 519         ZERO_STRUCT(id);
 520         errno = ENOSYS;
 521         return id;
 522 }
 523
 524 struct skel_cc_state {
 525         uint64_t unused;
 526 };
 527 static struct tevent_req *skel_copy_chunk_send(struct vfs_handle_struct *handle,
 528                                                TALLOC_CTX *mem_ctx,
 529                                                struct tevent_context *ev,
 530                                                struct files_struct *src_fsp,
 531                                                off_t src_off,
 532                                                struct files_struct *dest_fsp,
 533                                                off_t dest_off,
 534                                                off_t num)
 535 {
 536         struct tevent_req *req;
 537         struct skel_cc_state *cc_state;
 538
 539         req = tevent_req_create(mem_ctx, &cc_state, struct skel_cc_state);
 540         if (req == NULL) {
 541                 return NULL;
 542         }
 543
 544         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 545         return tevent_req_post(req, ev);
 546 }
 547
 548 static NTSTATUS skel_copy_chunk_recv(struct vfs_handle_struct *handle,
 549                                      struct tevent_req *req,
 550                                      off_t *copied)
 551 {
 552         NTSTATUS status;
 553
 554         if (tevent_req_is_nterror(req, &status)) {
 555                 tevent_req_received(req);
 556                 return status;
 557         }
 558         tevent_req_received(req);
 559
 560         return NT_STATUS_OK;
 561 }
 562
 563 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 564                                      TALLOC_CTX *mem_ctx,
 565                                      struct files_struct *fsp,
 566                                      struct smb_filename *smb_fname,
 567                                      uint16_t *_compression_fmt)
 568 {
 569         return NT_STATUS_INVALID_DEVICE_REQUEST;
 570 }
 571
 572 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 573                                      TALLOC_CTX *mem_ctx,
 574                                      struct files_struct *fsp,
 575                                      uint16_t compression_fmt)
 576 {
 577         return NT_STATUS_INVALID_DEVICE_REQUEST;
 578 }
 579
 580 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 581                                 struct files_struct *fsp,
 582                                 const struct smb_filename *smb_fname,
 583                                 TALLOC_CTX *mem_ctx,
 584                                 unsigned int *num_streams,
 585                                 struct stream_struct **streams)
 586 {
 587         return NT_STATUS_NOT_IMPLEMENTED;
 588 }
 589
 590 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 591                                   const char *path,
 592                                   const char *name,
 593                                   TALLOC_CTX *mem_ctx, char **found_name)
 594 {
 595         errno = ENOSYS;
 596         return -1;
 597 }
 598
 599 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 600                                     const char *filename)
 601 {
 602         errno = ENOSYS;
 603         return NULL;
 604 }
 605
 606 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 607                                       struct byte_range_lock *br_lck,
 608                                       struct lock_struct *plock,
 609                                       bool blocking_lock)
 610 {
 611         return NT_STATUS_NOT_IMPLEMENTED;
 612 }
 613
 614 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 615                                     struct messaging_context *msg_ctx,
 616                                     struct byte_range_lock *br_lck,
 617                                     const struct lock_struct *plock)
 618 {
 619         errno = ENOSYS;
 620         return false;
 621 }
 622
 623 static bool skel_brl_cancel_windows(struct vfs_handle_struct *handle,
 624                                     struct byte_range_lock *br_lck,
 625                                     struct lock_struct *plock)
 626 {
 627         errno = ENOSYS;
 628         return false;
 629 }
 630
 631 static bool skel_strict_lock(struct vfs_handle_struct *handle,
 632                              struct files_struct *fsp,
 633                              struct lock_struct *plock)
 634 {
 635         errno = ENOSYS;
 636         return false;
 637 }
 638
 639 static void skel_strict_unlock(struct vfs_handle_struct *handle,
 640                                struct files_struct *fsp,
 641                                struct lock_struct *plock)
 642 {
 643         ;
 644 }
 645
 646 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 647                                     const char *mapped_name,
 648                                     enum vfs_translate_direction direction,
 649                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 650 {
 651         return NT_STATUS_NOT_IMPLEMENTED;
 652 }
 653
 654 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 655                            struct files_struct *fsp,
 656                            TALLOC_CTX *ctx,
 657                            uint32_t function,
 658                            uint16_t req_flags,  /* Needed for UNICODE ... */
 659                            const uint8_t *_in_data,
 660                            uint32_t in_len,
 661                            uint8_t **_out_data,
 662                            uint32_t max_out_len, uint32_t *out_len)
 663 {
 664         return NT_STATUS_NOT_IMPLEMENTED;
 665 }
 666
 667 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 668                                   const struct smb_filename *fname,
 669                                   TALLOC_CTX *mem_ctx,
 670                                   struct readdir_attr_data **pattr_data)
 671 {
 672         return NT_STATUS_NOT_IMPLEMENTED;
 673 }
 674
 675 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 676                                  uint32_t security_info,
 677                                  TALLOC_CTX *mem_ctx,
 678                                  struct security_descriptor **ppdesc)
 679 {
 680         return NT_STATUS_NOT_IMPLEMENTED;
 681 }
 682
 683 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
 684                                 const struct smb_filename *smb_fname,
 685                                 uint32_t security_info,
 686                                 TALLOC_CTX *mem_ctx,
 687                                 struct security_descriptor **ppdesc)
 688 {
 689         return NT_STATUS_NOT_IMPLEMENTED;
 690 }
 691
 692 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 693                                  uint32_t security_info_sent,
 694                                  const struct security_descriptor *psd)
 695 {
 696         return NT_STATUS_NOT_IMPLEMENTED;
 697 }
 698
 699 static int skel_chmod_acl(vfs_handle_struct *handle,
 700                         const struct smb_filename *smb_fname,
 701                         mode_t mode)
 702 {
 703         errno = ENOSYS;
 704         return -1;
 705 }
 706
 707 static int skel_fchmod_acl(vfs_handle_struct *handle, files_struct *fsp,
 708                            mode_t mode)
 709 {
 710         errno = ENOSYS;
 711         return -1;
 712 }
 713
 714 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
 715                                        const char *path_p,
 716                                        SMB_ACL_TYPE_T type,
 717                                        TALLOC_CTX *mem_ctx)
 718 {
 719         errno = ENOSYS;
 720         return (SMB_ACL_T) NULL;
 721 }
 722
 723 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
 724                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
 725 {
 726         errno = ENOSYS;
 727         return (SMB_ACL_T) NULL;
 728 }
 729
 730 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
 731                                       const char *path_p, TALLOC_CTX *mem_ctx,
 732                                       char **blob_description, DATA_BLOB *blob)
 733 {
 734         errno = ENOSYS;
 735         return -1;
 736 }
 737
 738 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
 739                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
 740                                     char **blob_description, DATA_BLOB *blob)
 741 {
 742         errno = ENOSYS;
 743         return -1;
 744 }
 745
 746 static int skel_sys_acl_set_file(vfs_handle_struct *handle, const char *name,
 747                                  SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
 748 {
 749         errno = ENOSYS;
 750         return -1;
 751 }
 752
 753 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
 754                                SMB_ACL_T theacl)
 755 {
 756         errno = ENOSYS;
 757         return -1;
 758 }
 759
 760 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
 761                                         const char *path)
 762 {
 763         errno = ENOSYS;
 764         return -1;
 765 }
 766
 767 static ssize_t skel_getxattr(vfs_handle_struct *handle, const char *path,
 768                              const char *name, void *value, size_t size)
 769 {
 770         errno = ENOSYS;
 771         return -1;
 772 }
 773
 774 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
 775                               struct files_struct *fsp, const char *name,
 776                               void *value, size_t size)
 777 {
 778         errno = ENOSYS;
 779         return -1;
 780 }
 781
 782 static ssize_t skel_listxattr(vfs_handle_struct *handle, const char *path,
 783                               char *list, size_t size)
 784 {
 785         errno = ENOSYS;
 786         return -1;
 787 }
 788
 789 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
 790                                struct files_struct *fsp, char *list,
 791                                size_t size)
 792 {
 793         errno = ENOSYS;
 794         return -1;
 795 }
 796
 797 static int skel_removexattr(vfs_handle_struct *handle, const char *path,
 798                             const char *name)
 799 {
 800         errno = ENOSYS;
 801         return -1;
 802 }
 803
 804 static int skel_fremovexattr(vfs_handle_struct *handle,
 805                              struct files_struct *fsp, const char *name)
 806 {
 807         errno = ENOSYS;
 808         return -1;
 809         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
 810 }
 811
 812 static int skel_setxattr(vfs_handle_struct *handle, const char *path,
 813                          const char *name, const void *value, size_t size,
 814                          int flags)
 815 {
 816         errno = ENOSYS;
 817         return -1;
 818 }
 819
 820 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
 821                           const char *name, const void *value, size_t size,
 822                           int flags)
 823 {
 824         errno = ENOSYS;
 825         return -1;
 826 }
 827
 828 static bool skel_aio_force(struct vfs_handle_struct *handle,
 829                            struct files_struct *fsp)
 830 {
 831         errno = ENOSYS;
 832         return false;
 833 }
 834
 835 static bool skel_is_offline(struct vfs_handle_struct *handle,
 836                             const struct smb_filename *fname,
 837                             SMB_STRUCT_STAT *sbuf)
 838 {
 839         errno = ENOSYS;
 840         return false;
 841 }
 842
 843 static int skel_set_offline(struct vfs_handle_struct *handle,
 844                             const struct smb_filename *fname)
 845 {
 846         errno = ENOSYS;
 847         return -1;
 848 }
 849
 850 /* VFS operations structure */
 851
 852 struct vfs_fn_pointers skel_opaque_fns = {
 853         /* Disk operations */
 854
 855         .connect_fn = skel_connect,
 856         .disconnect_fn = skel_disconnect,
 857         .disk_free_fn = skel_disk_free,
 858         .get_quota_fn = skel_get_quota,
 859         .set_quota_fn = skel_set_quota,
 860         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
 861         .statvfs_fn = skel_statvfs,
 862         .fs_capabilities_fn = skel_fs_capabilities,
 863         .get_dfs_referrals_fn = skel_get_dfs_referrals,
 864         .snap_check_path_fn = skel_snap_check_path,
 865         .snap_create_fn = skel_snap_create,
 866         .snap_delete_fn = skel_snap_delete,
 867
 868         /* Directory operations */
 869
 870         .opendir_fn = skel_opendir,
 871         .fdopendir_fn = skel_fdopendir,
 872         .readdir_fn = skel_readdir,
 873         .seekdir_fn = skel_seekdir,
 874         .telldir_fn = skel_telldir,
 875         .rewind_dir_fn = skel_rewind_dir,
 876         .mkdir_fn = skel_mkdir,
 877         .rmdir_fn = skel_rmdir,
 878         .closedir_fn = skel_closedir,
 879         .init_search_op_fn = skel_init_search_op,
 880
 881         /* File operations */
 882
 883         .open_fn = skel_open,
 884         .create_file_fn = skel_create_file,
 885         .close_fn = skel_close_fn,
 886         .read_fn = skel_vfs_read,
 887         .pread_fn = skel_pread,
 888         .pread_send_fn = skel_pread_send,
 889         .pread_recv_fn = skel_pread_recv,
 890         .write_fn = skel_write,
 891         .pwrite_fn = skel_pwrite,
 892         .pwrite_send_fn = skel_pwrite_send,
 893         .pwrite_recv_fn = skel_pwrite_recv,
 894         .lseek_fn = skel_lseek,
 895         .sendfile_fn = skel_sendfile,
 896         .recvfile_fn = skel_recvfile,
 897         .rename_fn = skel_rename,
 898         .fsync_fn = skel_fsync,
 899         .fsync_send_fn = skel_fsync_send,
 900         .fsync_recv_fn = skel_fsync_recv,
 901         .stat_fn = skel_stat,
 902         .fstat_fn = skel_fstat,
 903         .lstat_fn = skel_lstat,
 904         .get_alloc_size_fn = skel_get_alloc_size,
 905         .unlink_fn = skel_unlink,
 906         .chmod_fn = skel_chmod,
 907         .fchmod_fn = skel_fchmod,
 908         .chown_fn = skel_chown,
 909         .fchown_fn = skel_fchown,
 910         .lchown_fn = skel_lchown,
 911         .chdir_fn = skel_chdir,
 912         .getwd_fn = skel_getwd,
 913         .ntimes_fn = skel_ntimes,
 914         .ftruncate_fn = skel_ftruncate,
 915         .fallocate_fn = skel_fallocate,
 916         .lock_fn = skel_lock,
 917         .kernel_flock_fn = skel_kernel_flock,
 918         .linux_setlease_fn = skel_linux_setlease,
 919         .getlock_fn = skel_getlock,
 920         .symlink_fn = skel_symlink,
 921         .readlink_fn = skel_vfs_readlink,
 922         .link_fn = skel_link,
 923         .mknod_fn = skel_mknod,
 924         .realpath_fn = skel_realpath,
 925         .chflags_fn = skel_chflags,
 926         .file_id_create_fn = skel_file_id_create,
 927         .copy_chunk_send_fn = skel_copy_chunk_send,
 928         .copy_chunk_recv_fn = skel_copy_chunk_recv,
 929         .get_compression_fn = skel_get_compression,
 930         .set_compression_fn = skel_set_compression,
 931
 932         .streaminfo_fn = skel_streaminfo,
 933         .get_real_filename_fn = skel_get_real_filename,
 934         .connectpath_fn = skel_connectpath,
 935         .brl_lock_windows_fn = skel_brl_lock_windows,
 936         .brl_unlock_windows_fn = skel_brl_unlock_windows,
 937         .brl_cancel_windows_fn = skel_brl_cancel_windows,
 938         .strict_lock_fn = skel_strict_lock,
 939         .strict_unlock_fn = skel_strict_unlock,
 940         .translate_name_fn = skel_translate_name,
 941         .fsctl_fn = skel_fsctl,
 942         .readdir_attr_fn = skel_readdir_attr,
 943
 944         /* NT ACL operations. */
 945
 946         .fget_nt_acl_fn = skel_fget_nt_acl,
 947         .get_nt_acl_fn = skel_get_nt_acl,
 948         .fset_nt_acl_fn = skel_fset_nt_acl,
 949
 950         /* POSIX ACL operations. */
 951
 952         .chmod_acl_fn = skel_chmod_acl,
 953         .fchmod_acl_fn = skel_fchmod_acl,
 954
 955         .sys_acl_get_file_fn = skel_sys_acl_get_file,
 956         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
 957         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
 958         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
 959         .sys_acl_set_file_fn = skel_sys_acl_set_file,
 960         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
 961         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
 962
 963         /* EA operations. */
 964         .getxattr_fn = skel_getxattr,
 965         .fgetxattr_fn = skel_fgetxattr,
 966         .listxattr_fn = skel_listxattr,
 967         .flistxattr_fn = skel_flistxattr,
 968         .removexattr_fn = skel_removexattr,
 969         .fremovexattr_fn = skel_fremovexattr,
 970         .setxattr_fn = skel_setxattr,
 971         .fsetxattr_fn = skel_fsetxattr,
 972
 973         /* aio operations */
 974         .aio_force_fn = skel_aio_force,
 975
 976         /* offline operations */
 977         .is_offline_fn = skel_is_offline,
 978         .set_offline_fn = skel_set_offline
 979 };
 980
 981 static_decl_vfs;
 982 NTSTATUS vfs_skel_opaque_init(void)
 983 {
 984         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_opaque",
 985                                 &skel_opaque_fns);
 986 }