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,
  48                                 const struct smb_filename *smb_fname,
  49                                 uint64_t *bsize,
  50                                 uint64_t *dfree,
  51                                 uint64_t *dsize)
  52 {
  53         *bsize = 0;
  54         *dfree = 0;
  55         *dsize = 0;
  56         return 0;
  57 }
  58
  59 static int skel_get_quota(vfs_handle_struct *handle,
  60                                 const struct smb_filename *smb_fname,
  61                                 enum SMB_QUOTA_TYPE qtype,
  62                                 unid_t id,
  63                                 SMB_DISK_QUOTA *dq)
  64 {
  65         errno = ENOSYS;
  66         return -1;
  67 }
  68
  69 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  70                           unid_t id, SMB_DISK_QUOTA *dq)
  71 {
  72         errno = ENOSYS;
  73         return -1;
  74 }
  75
  76 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
  77                                      files_struct *fsp,
  78                                      struct shadow_copy_data *shadow_copy_data,
  79                                      bool labels)
  80 {
  81         errno = ENOSYS;
  82         return -1;
  83 }
  84
  85 static int skel_statvfs(struct vfs_handle_struct *handle,
  86                                 const struct smb_filename *smb_fname,
  87                                 struct vfs_statvfs_struct *statbuf)
  88 {
  89         errno = ENOSYS;
  90         return -1;
  91 }
  92
  93 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
  94                                      enum timestamp_set_resolution *p_ts_res)
  95 {
  96         return 0;
  97 }
  98
  99 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
 100                                        struct dfs_GetDFSReferral *r)
 101 {
 102         return NT_STATUS_NOT_IMPLEMENTED;
 103 }
 104
 105 static DIR *skel_opendir(vfs_handle_struct *handle,
 106                         const struct smb_filename *smb_fname,
 107                         const char *mask,
 108                         uint32_t attr)
 109 {
 110         return NULL;
 111 }
 112
 113 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
 114                                      TALLOC_CTX *mem_ctx,
 115                                      const char *service_path,
 116                                      char **base_volume)
 117 {
 118         return NT_STATUS_NOT_SUPPORTED;
 119 }
 120
 121 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
 122                                  TALLOC_CTX *mem_ctx,
 123                                  const char *base_volume,
 124                                  time_t *tstamp,
 125                                  bool rw,
 126                                  char **base_path,
 127                                  char **snap_path)
 128 {
 129         return NT_STATUS_NOT_SUPPORTED;
 130 }
 131
 132 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
 133                                  TALLOC_CTX *mem_ctx,
 134                                  char *base_path,
 135                                  char *snap_path)
 136 {
 137         return NT_STATUS_NOT_SUPPORTED;
 138 }
 139
 140 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 141                            const char *mask, uint32_t attr)
 142 {
 143         return NULL;
 144 }
 145
 146 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 147                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 148 {
 149         return NULL;
 150 }
 151
 152 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 153 {
 154         ;
 155 }
 156
 157 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 158 {
 159         return (long)-1;
 160 }
 161
 162 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 163 {
 164         ;
 165 }
 166
 167 static int skel_mkdir(vfs_handle_struct *handle,
 168                 const struct smb_filename *smb_fname,
 169                 mode_t mode)
 170 {
 171         errno = ENOSYS;
 172         return -1;
 173 }
 174
 175 static int skel_rmdir(vfs_handle_struct *handle,
 176                 const struct smb_filename *smb_fname)
 177 {
 178         errno = ENOSYS;
 179         return -1;
 180 }
 181
 182 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 183 {
 184         errno = ENOSYS;
 185         return -1;
 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_pread(vfs_handle_struct *handle, files_struct *fsp,
 224                           void *data, size_t n, off_t offset)
 225 {
 226         errno = ENOSYS;
 227         return -1;
 228 }
 229
 230 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 231                                           TALLOC_CTX *mem_ctx,
 232                                           struct tevent_context *ev,
 233                                           struct files_struct *fsp,
 234                                           void *data, size_t n, off_t offset)
 235 {
 236         return NULL;
 237 }
 238
 239 static ssize_t skel_pread_recv(struct tevent_req *req,
 240                                struct vfs_aio_state *vfs_aio_state)
 241 {
 242         vfs_aio_state->error = ENOSYS;
 243         return -1;
 244 }
 245
 246 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 247                            const void *data, size_t n, off_t offset)
 248 {
 249         errno = ENOSYS;
 250         return -1;
 251 }
 252
 253 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 254                                            TALLOC_CTX *mem_ctx,
 255                                            struct tevent_context *ev,
 256                                            struct files_struct *fsp,
 257                                            const void *data,
 258                                            size_t n, off_t offset)
 259 {
 260         return NULL;
 261 }
 262
 263 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 264                                 struct vfs_aio_state *vfs_aio_state)
 265 {
 266         vfs_aio_state->error = ENOSYS;
 267         return -1;
 268 }
 269
 270 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 271                         off_t offset, int whence)
 272 {
 273         errno = ENOSYS;
 274         return (off_t) - 1;
 275 }
 276
 277 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 278                              files_struct *fromfsp, const DATA_BLOB *hdr,
 279                              off_t offset, size_t n)
 280 {
 281         errno = ENOSYS;
 282         return -1;
 283 }
 284
 285 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 286                              files_struct *tofsp, off_t offset, size_t n)
 287 {
 288         errno = ENOSYS;
 289         return -1;
 290 }
 291
 292 static int skel_rename(vfs_handle_struct *handle,
 293                        const struct smb_filename *smb_fname_src,
 294                        const struct smb_filename *smb_fname_dst)
 295 {
 296         errno = ENOSYS;
 297         return -1;
 298 }
 299
 300 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 301                                           TALLOC_CTX *mem_ctx,
 302                                           struct tevent_context *ev,
 303                                           struct files_struct *fsp)
 304 {
 305         return NULL;
 306 }
 307
 308 static int skel_fsync_recv(struct tevent_req *req,
 309                            struct vfs_aio_state *vfs_aio_state)
 310 {
 311         vfs_aio_state->error = ENOSYS;
 312         return -1;
 313 }
 314
 315 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 316 {
 317         errno = ENOSYS;
 318         return -1;
 319 }
 320
 321 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 322                       SMB_STRUCT_STAT *sbuf)
 323 {
 324         errno = ENOSYS;
 325         return -1;
 326 }
 327
 328 static int skel_lstat(vfs_handle_struct *handle,
 329                       struct smb_filename *smb_fname)
 330 {
 331         errno = ENOSYS;
 332         return -1;
 333 }
 334
 335 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 336                                     struct files_struct *fsp,
 337                                     const SMB_STRUCT_STAT *sbuf)
 338 {
 339         errno = ENOSYS;
 340         return -1;
 341 }
 342
 343 static int skel_unlink(vfs_handle_struct *handle,
 344                        const struct smb_filename *smb_fname)
 345 {
 346         errno = ENOSYS;
 347         return -1;
 348 }
 349
 350 static int skel_chmod(vfs_handle_struct *handle,
 351                         const struct smb_filename *smb_fname,
 352                         mode_t mode)
 353 {
 354         errno = ENOSYS;
 355         return -1;
 356 }
 357
 358 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 359                        mode_t mode)
 360 {
 361         errno = ENOSYS;
 362         return -1;
 363 }
 364
 365 static int skel_chown(vfs_handle_struct *handle,
 366                         const struct smb_filename *smb_fname,
 367                         uid_t uid,
 368                         gid_t gid)
 369 {
 370         errno = ENOSYS;
 371         return -1;
 372 }
 373
 374 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 375                        uid_t uid, gid_t gid)
 376 {
 377         errno = ENOSYS;
 378         return -1;
 379 }
 380
 381 static int skel_lchown(vfs_handle_struct *handle,
 382                         const struct smb_filename *smb_fname,
 383                         uid_t uid,
 384                         gid_t gid)
 385 {
 386         errno = ENOSYS;
 387         return -1;
 388 }
 389
 390 static int skel_chdir(vfs_handle_struct *handle,
 391                         const struct smb_filename *smb_fname)
 392 {
 393         errno = ENOSYS;
 394         return -1;
 395 }
 396
 397 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 398                                 TALLOC_CTX *ctx)
 399 {
 400         errno = ENOSYS;
 401         return NULL;
 402 }
 403
 404 static int skel_ntimes(vfs_handle_struct *handle,
 405                        const struct smb_filename *smb_fname,
 406                        struct smb_file_time *ft)
 407 {
 408         errno = ENOSYS;
 409         return -1;
 410 }
 411
 412 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 413                           off_t offset)
 414 {
 415         errno = ENOSYS;
 416         return -1;
 417 }
 418
 419 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 420                           uint32_t mode, off_t offset, off_t len)
 421 {
 422         errno = ENOSYS;
 423         return -1;
 424 }
 425
 426 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 427                       off_t offset, off_t count, int type)
 428 {
 429         errno = ENOSYS;
 430         return false;
 431 }
 432
 433 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 434                              struct files_struct *fsp,
 435                              uint32_t share_mode, uint32_t access_mask)
 436 {
 437         errno = ENOSYS;
 438         return -1;
 439 }
 440
 441 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 442                                struct files_struct *fsp, int leasetype)
 443 {
 444         errno = ENOSYS;
 445         return -1;
 446 }
 447
 448 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 449                          off_t *poffset, off_t *pcount, int *ptype,
 450                          pid_t *ppid)
 451 {
 452         errno = ENOSYS;
 453         return false;
 454 }
 455
 456 static int skel_symlink(vfs_handle_struct *handle,
 457                         const char *link_contents,
 458                         const struct smb_filename *new_smb_fname)
 459 {
 460         errno = ENOSYS;
 461         return -1;
 462 }
 463
 464 static int skel_vfs_readlink(vfs_handle_struct *handle,
 465                         const struct smb_filename *smb_fname,
 466                         char *buf,
 467                         size_t bufsiz)
 468 {
 469         errno = ENOSYS;
 470         return -1;
 471 }
 472
 473 static int skel_link(vfs_handle_struct *handle,
 474                         const struct smb_filename *old_smb_fname,
 475                         const struct smb_filename *new_smb_fname)
 476 {
 477         errno = ENOSYS;
 478         return -1;
 479 }
 480
 481 static int skel_mknod(vfs_handle_struct *handle,
 482                         const struct smb_filename *smb_fname,
 483                         mode_t mode,
 484                         SMB_DEV_T dev)
 485 {
 486         errno = ENOSYS;
 487         return -1;
 488 }
 489
 490 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 491                         TALLOC_CTX *ctx,
 492                         const struct smb_filename *smb_fname)
 493 {
 494         errno = ENOSYS;
 495         return NULL;
 496 }
 497
 498 static int skel_chflags(vfs_handle_struct *handle,
 499                         const struct smb_filename *smb_fname,
 500                         uint flags)
 501 {
 502         errno = ENOSYS;
 503         return -1;
 504 }
 505
 506 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 507                                           const SMB_STRUCT_STAT *sbuf)
 508 {
 509         struct file_id id;
 510         ZERO_STRUCT(id);
 511         errno = ENOSYS;
 512         return id;
 513 }
 514
 515 struct skel_offload_read_state {
 516         bool dummy;
 517 };
 518
 519 static struct tevent_req *skel_offload_read_send(
 520         TALLOC_CTX *mem_ctx,
 521         struct tevent_context *ev,
 522         struct vfs_handle_struct *handle,
 523         struct files_struct *fsp,
 524         uint32_t fsctl,
 525         uint32_t ttl,
 526         off_t offset,
 527         size_t to_copy)
 528 {
 529         struct tevent_req *req = NULL;
 530         struct skel_offload_read_state *state = NULL;
 531
 532         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 533         if (req == NULL) {
 534                 return NULL;
 535         }
 536
 537         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 538         return tevent_req_post(req, ev);
 539 }
 540
 541 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 542                                        struct vfs_handle_struct *handle,
 543                                        TALLOC_CTX *mem_ctx,
 544                                        DATA_BLOB *_token_blob)
 545 {
 546         NTSTATUS status;
 547
 548         if (tevent_req_is_nterror(req, &status)) {
 549                 tevent_req_received(req);
 550                 return status;
 551         }
 552         tevent_req_received(req);
 553
 554         return NT_STATUS_OK;
 555 }
 556
 557 struct skel_cc_state {
 558         uint64_t unused;
 559 };
 560 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 561                                                TALLOC_CTX *mem_ctx,
 562                                                struct tevent_context *ev,
 563                                                uint32_t fsctl,
 564                                                DATA_BLOB *token,
 565                                                off_t transfer_offset,
 566                                                struct files_struct *dest_fsp,
 567                                                off_t dest_off,
 568                                                off_t num)
 569 {
 570         struct tevent_req *req;
 571         struct skel_cc_state *cc_state;
 572
 573         req = tevent_req_create(mem_ctx, &cc_state, struct skel_cc_state);
 574         if (req == NULL) {
 575                 return NULL;
 576         }
 577
 578         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 579         return tevent_req_post(req, ev);
 580 }
 581
 582 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 583                                      struct tevent_req *req,
 584                                      off_t *copied)
 585 {
 586         NTSTATUS status;
 587
 588         if (tevent_req_is_nterror(req, &status)) {
 589                 tevent_req_received(req);
 590                 return status;
 591         }
 592         tevent_req_received(req);
 593
 594         return NT_STATUS_OK;
 595 }
 596
 597 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 598                                      TALLOC_CTX *mem_ctx,
 599                                      struct files_struct *fsp,
 600                                      struct smb_filename *smb_fname,
 601                                      uint16_t *_compression_fmt)
 602 {
 603         return NT_STATUS_INVALID_DEVICE_REQUEST;
 604 }
 605
 606 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 607                                      TALLOC_CTX *mem_ctx,
 608                                      struct files_struct *fsp,
 609                                      uint16_t compression_fmt)
 610 {
 611         return NT_STATUS_INVALID_DEVICE_REQUEST;
 612 }
 613
 614 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 615                                 struct files_struct *fsp,
 616                                 const struct smb_filename *smb_fname,
 617                                 TALLOC_CTX *mem_ctx,
 618                                 unsigned int *num_streams,
 619                                 struct stream_struct **streams)
 620 {
 621         return NT_STATUS_NOT_IMPLEMENTED;
 622 }
 623
 624 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 625                                   const char *path,
 626                                   const char *name,
 627                                   TALLOC_CTX *mem_ctx, char **found_name)
 628 {
 629         errno = ENOSYS;
 630         return -1;
 631 }
 632
 633 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 634                                 const struct smb_filename *smb_fname)
 635 {
 636         errno = ENOSYS;
 637         return NULL;
 638 }
 639
 640 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 641                                       struct byte_range_lock *br_lck,
 642                                       struct lock_struct *plock,
 643                                       bool blocking_lock)
 644 {
 645         return NT_STATUS_NOT_IMPLEMENTED;
 646 }
 647
 648 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 649                                     struct messaging_context *msg_ctx,
 650                                     struct byte_range_lock *br_lck,
 651                                     const struct lock_struct *plock)
 652 {
 653         errno = ENOSYS;
 654         return false;
 655 }
 656
 657 static bool skel_brl_cancel_windows(struct vfs_handle_struct *handle,
 658                                     struct byte_range_lock *br_lck,
 659                                     struct lock_struct *plock)
 660 {
 661         errno = ENOSYS;
 662         return false;
 663 }
 664
 665 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 666                                    struct files_struct *fsp,
 667                                    struct lock_struct *plock)
 668 {
 669         errno = ENOSYS;
 670         return false;
 671 }
 672
 673 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 674                                     const char *mapped_name,
 675                                     enum vfs_translate_direction direction,
 676                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 677 {
 678         return NT_STATUS_NOT_IMPLEMENTED;
 679 }
 680
 681 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 682                            struct files_struct *fsp,
 683                            TALLOC_CTX *ctx,
 684                            uint32_t function,
 685                            uint16_t req_flags,  /* Needed for UNICODE ... */
 686                            const uint8_t *_in_data,
 687                            uint32_t in_len,
 688                            uint8_t **_out_data,
 689                            uint32_t max_out_len, uint32_t *out_len)
 690 {
 691         return NT_STATUS_NOT_IMPLEMENTED;
 692 }
 693
 694 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 695                                   const struct smb_filename *fname,
 696                                   TALLOC_CTX *mem_ctx,
 697                                   struct readdir_attr_data **pattr_data)
 698 {
 699         return NT_STATUS_NOT_IMPLEMENTED;
 700 }
 701
 702 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 703                                 struct smb_filename *smb_fname,
 704                                 uint32_t *dosmode)
 705 {
 706         return NT_STATUS_NOT_IMPLEMENTED;
 707 }
 708
 709 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
 710                                 struct files_struct *fsp,
 711                                 uint32_t *dosmode)
 712 {
 713         return NT_STATUS_NOT_IMPLEMENTED;
 714 }
 715
 716 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
 717                                 const struct smb_filename *smb_fname,
 718                                 uint32_t dosmode)
 719 {
 720         return NT_STATUS_NOT_IMPLEMENTED;
 721 }
 722
 723 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
 724                                 struct files_struct *fsp,
 725                                 uint32_t dosmode)
 726 {
 727         return NT_STATUS_NOT_IMPLEMENTED;
 728 }
 729
 730 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 731                                  uint32_t security_info,
 732                                  TALLOC_CTX *mem_ctx,
 733                                  struct security_descriptor **ppdesc)
 734 {
 735         return NT_STATUS_NOT_IMPLEMENTED;
 736 }
 737
 738 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
 739                                 const struct smb_filename *smb_fname,
 740                                 uint32_t security_info,
 741                                 TALLOC_CTX *mem_ctx,
 742                                 struct security_descriptor **ppdesc)
 743 {
 744         return NT_STATUS_NOT_IMPLEMENTED;
 745 }
 746
 747 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 748                                  uint32_t security_info_sent,
 749                                  const struct security_descriptor *psd)
 750 {
 751         return NT_STATUS_NOT_IMPLEMENTED;
 752 }
 753
 754 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
 755                                        const struct smb_filename *smb_fname,
 756                                        SMB_ACL_TYPE_T type,
 757                                        TALLOC_CTX *mem_ctx)
 758 {
 759         errno = ENOSYS;
 760         return (SMB_ACL_T) NULL;
 761 }
 762
 763 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
 764                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
 765 {
 766         errno = ENOSYS;
 767         return (SMB_ACL_T) NULL;
 768 }
 769
 770 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
 771                                 const struct smb_filename *smb_fname,
 772                                 TALLOC_CTX *mem_ctx,
 773                                 char **blob_description,
 774                                 DATA_BLOB *blob)
 775 {
 776         errno = ENOSYS;
 777         return -1;
 778 }
 779
 780 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
 781                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
 782                                     char **blob_description, DATA_BLOB *blob)
 783 {
 784         errno = ENOSYS;
 785         return -1;
 786 }
 787
 788 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
 789                                 const struct smb_filename *smb_fname,
 790                                 SMB_ACL_TYPE_T acltype,
 791                                 SMB_ACL_T theacl)
 792 {
 793         errno = ENOSYS;
 794         return -1;
 795 }
 796
 797 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
 798                                SMB_ACL_T theacl)
 799 {
 800         errno = ENOSYS;
 801         return -1;
 802 }
 803
 804 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
 805                                         const struct smb_filename *smb_fname)
 806 {
 807         errno = ENOSYS;
 808         return -1;
 809 }
 810
 811 static ssize_t skel_getxattr(vfs_handle_struct *handle,
 812                                 const struct smb_filename *smb_fname,
 813                                 const char *name,
 814                                 void *value,
 815                                 size_t size)
 816 {
 817         errno = ENOSYS;
 818         return -1;
 819 }
 820
 821 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
 822                               struct files_struct *fsp, const char *name,
 823                               void *value, size_t size)
 824 {
 825         errno = ENOSYS;
 826         return -1;
 827 }
 828
 829 static ssize_t skel_listxattr(vfs_handle_struct *handle,
 830                                 const struct smb_filename *smb_fname,
 831                                 char *list,
 832                                 size_t size)
 833 {
 834         errno = ENOSYS;
 835         return -1;
 836 }
 837
 838 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
 839                                struct files_struct *fsp, char *list,
 840                                size_t size)
 841 {
 842         errno = ENOSYS;
 843         return -1;
 844 }
 845
 846 static int skel_removexattr(vfs_handle_struct *handle,
 847                         const struct smb_filename *smb_fname,
 848                         const char *name)
 849 {
 850         errno = ENOSYS;
 851         return -1;
 852 }
 853
 854 static int skel_fremovexattr(vfs_handle_struct *handle,
 855                              struct files_struct *fsp, const char *name)
 856 {
 857         errno = ENOSYS;
 858         return -1;
 859         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
 860 }
 861
 862 static int skel_setxattr(vfs_handle_struct *handle,
 863                         const struct smb_filename *smb_fname,
 864                         const char *name,
 865                         const void *value,
 866                         size_t size,
 867                         int flags)
 868 {
 869         errno = ENOSYS;
 870         return -1;
 871 }
 872
 873 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
 874                           const char *name, const void *value, size_t size,
 875                           int flags)
 876 {
 877         errno = ENOSYS;
 878         return -1;
 879 }
 880
 881 static bool skel_aio_force(struct vfs_handle_struct *handle,
 882                            struct files_struct *fsp)
 883 {
 884         errno = ENOSYS;
 885         return false;
 886 }
 887
 888 /* VFS operations structure */
 889
 890 struct vfs_fn_pointers skel_opaque_fns = {
 891         /* Disk operations */
 892
 893         .connect_fn = skel_connect,
 894         .disconnect_fn = skel_disconnect,
 895         .disk_free_fn = skel_disk_free,
 896         .get_quota_fn = skel_get_quota,
 897         .set_quota_fn = skel_set_quota,
 898         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
 899         .statvfs_fn = skel_statvfs,
 900         .fs_capabilities_fn = skel_fs_capabilities,
 901         .get_dfs_referrals_fn = skel_get_dfs_referrals,
 902         .snap_check_path_fn = skel_snap_check_path,
 903         .snap_create_fn = skel_snap_create,
 904         .snap_delete_fn = skel_snap_delete,
 905
 906         /* Directory operations */
 907
 908         .opendir_fn = skel_opendir,
 909         .fdopendir_fn = skel_fdopendir,
 910         .readdir_fn = skel_readdir,
 911         .seekdir_fn = skel_seekdir,
 912         .telldir_fn = skel_telldir,
 913         .rewind_dir_fn = skel_rewind_dir,
 914         .mkdir_fn = skel_mkdir,
 915         .rmdir_fn = skel_rmdir,
 916         .closedir_fn = skel_closedir,
 917
 918         /* File operations */
 919
 920         .open_fn = skel_open,
 921         .create_file_fn = skel_create_file,
 922         .close_fn = skel_close_fn,
 923         .pread_fn = skel_pread,
 924         .pread_send_fn = skel_pread_send,
 925         .pread_recv_fn = skel_pread_recv,
 926         .pwrite_fn = skel_pwrite,
 927         .pwrite_send_fn = skel_pwrite_send,
 928         .pwrite_recv_fn = skel_pwrite_recv,
 929         .lseek_fn = skel_lseek,
 930         .sendfile_fn = skel_sendfile,
 931         .recvfile_fn = skel_recvfile,
 932         .rename_fn = skel_rename,
 933         .fsync_send_fn = skel_fsync_send,
 934         .fsync_recv_fn = skel_fsync_recv,
 935         .stat_fn = skel_stat,
 936         .fstat_fn = skel_fstat,
 937         .lstat_fn = skel_lstat,
 938         .get_alloc_size_fn = skel_get_alloc_size,
 939         .unlink_fn = skel_unlink,
 940         .chmod_fn = skel_chmod,
 941         .fchmod_fn = skel_fchmod,
 942         .chown_fn = skel_chown,
 943         .fchown_fn = skel_fchown,
 944         .lchown_fn = skel_lchown,
 945         .chdir_fn = skel_chdir,
 946         .getwd_fn = skel_getwd,
 947         .ntimes_fn = skel_ntimes,
 948         .ftruncate_fn = skel_ftruncate,
 949         .fallocate_fn = skel_fallocate,
 950         .lock_fn = skel_lock,
 951         .kernel_flock_fn = skel_kernel_flock,
 952         .linux_setlease_fn = skel_linux_setlease,
 953         .getlock_fn = skel_getlock,
 954         .symlink_fn = skel_symlink,
 955         .readlink_fn = skel_vfs_readlink,
 956         .link_fn = skel_link,
 957         .mknod_fn = skel_mknod,
 958         .realpath_fn = skel_realpath,
 959         .chflags_fn = skel_chflags,
 960         .file_id_create_fn = skel_file_id_create,
 961         .offload_read_send_fn = skel_offload_read_send,
 962         .offload_read_recv_fn = skel_offload_read_recv,
 963         .offload_write_send_fn = skel_offload_write_send,
 964         .offload_write_recv_fn = skel_offload_write_recv,
 965         .get_compression_fn = skel_get_compression,
 966         .set_compression_fn = skel_set_compression,
 967
 968         .streaminfo_fn = skel_streaminfo,
 969         .get_real_filename_fn = skel_get_real_filename,
 970         .connectpath_fn = skel_connectpath,
 971         .brl_lock_windows_fn = skel_brl_lock_windows,
 972         .brl_unlock_windows_fn = skel_brl_unlock_windows,
 973         .brl_cancel_windows_fn = skel_brl_cancel_windows,
 974         .strict_lock_check_fn = skel_strict_lock_check,
 975         .translate_name_fn = skel_translate_name,
 976         .fsctl_fn = skel_fsctl,
 977         .readdir_attr_fn = skel_readdir_attr,
 978
 979         /* DOS attributes. */
 980         .get_dos_attributes_fn = skel_get_dos_attributes,
 981         .fget_dos_attributes_fn = skel_fget_dos_attributes,
 982         .set_dos_attributes_fn = skel_set_dos_attributes,
 983         .fset_dos_attributes_fn = skel_fset_dos_attributes,
 984
 985         /* NT ACL operations. */
 986
 987         .fget_nt_acl_fn = skel_fget_nt_acl,
 988         .get_nt_acl_fn = skel_get_nt_acl,
 989         .fset_nt_acl_fn = skel_fset_nt_acl,
 990
 991         /* POSIX ACL operations. */
 992
 993         .sys_acl_get_file_fn = skel_sys_acl_get_file,
 994         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
 995         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
 996         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
 997         .sys_acl_set_file_fn = skel_sys_acl_set_file,
 998         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
 999         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1000
1001         /* EA operations. */
1002         .getxattr_fn = skel_getxattr,
1003         .fgetxattr_fn = skel_fgetxattr,
1004         .listxattr_fn = skel_listxattr,
1005         .flistxattr_fn = skel_flistxattr,
1006         .removexattr_fn = skel_removexattr,
1007         .fremovexattr_fn = skel_fremovexattr,
1008         .setxattr_fn = skel_setxattr,
1009         .fsetxattr_fn = skel_fsetxattr,
1010
1011         /* aio operations */
1012         .aio_force_fn = skel_aio_force,
1013 };
1014
1015 static_decl_vfs;
1016 NTSTATUS vfs_skel_opaque_init(TALLOC_CTX *ctx)
1017 {
1018         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_opaque",
1019                                 &skel_opaque_fns);
1020 }