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_unix.h"
  26 #include "lib/util/tevent_ntstatus.h"
  27
  28 /* PLEASE,PLEASE READ THE VFS MODULES CHAPTER OF THE
  29    SAMBA DEVELOPERS GUIDE!!!!!!
  30  */
  31
  32 /* If you take this file as template for your module
  33  * you must re-implement every function.
  34  */
  35
  36 static int skel_connect(vfs_handle_struct *handle, const char *service,
  37                         const char *user)
  38 {
  39         errno = ENOSYS;
  40         return -1;
  41 }
  42
  43 static void skel_disconnect(vfs_handle_struct *handle)
  44 {
  45         ;
  46 }
  47
  48 static uint64_t skel_disk_free(vfs_handle_struct *handle,
  49                                 const struct smb_filename *smb_fname,
  50                                 uint64_t *bsize,
  51                                 uint64_t *dfree,
  52                                 uint64_t *dsize)
  53 {
  54         *bsize = 0;
  55         *dfree = 0;
  56         *dsize = 0;
  57         return 0;
  58 }
  59
  60 static int skel_get_quota(vfs_handle_struct *handle,
  61                                 const struct smb_filename *smb_fname,
  62                                 enum SMB_QUOTA_TYPE qtype,
  63                                 unid_t id,
  64                                 SMB_DISK_QUOTA *dq)
  65 {
  66         errno = ENOSYS;
  67         return -1;
  68 }
  69
  70 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  71                           unid_t id, SMB_DISK_QUOTA *dq)
  72 {
  73         errno = ENOSYS;
  74         return -1;
  75 }
  76
  77 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
  78                                      files_struct *fsp,
  79                                      struct shadow_copy_data *shadow_copy_data,
  80                                      bool labels)
  81 {
  82         errno = ENOSYS;
  83         return -1;
  84 }
  85
  86 static int skel_statvfs(struct vfs_handle_struct *handle,
  87                                 const struct smb_filename *smb_fname,
  88                                 struct vfs_statvfs_struct *statbuf)
  89 {
  90         errno = ENOSYS;
  91         return -1;
  92 }
  93
  94 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
  95                                      enum timestamp_set_resolution *p_ts_res)
  96 {
  97         return 0;
  98 }
  99
 100 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
 101                                        struct dfs_GetDFSReferral *r)
 102 {
 103         return NT_STATUS_NOT_IMPLEMENTED;
 104 }
 105
 106 static NTSTATUS skel_create_dfs_pathat(struct vfs_handle_struct *handle,
 107                                 struct files_struct *dirfsp,
 108                                 const struct smb_filename *smb_fname,
 109                                 const struct referral *reflist,
 110                                 size_t referral_count)
 111 {
 112         return NT_STATUS_NOT_IMPLEMENTED;
 113 }
 114
 115 static NTSTATUS skel_read_dfs_pathat(struct vfs_handle_struct *handle,
 116                                 TALLOC_CTX *mem_ctx,
 117                                 struct files_struct *dirfsp,
 118                                 const struct smb_filename *smb_fname,
 119                                 struct referral **ppreflist,
 120                                 size_t *preferral_count)
 121 {
 122         return NT_STATUS_NOT_IMPLEMENTED;
 123 }
 124
 125 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
 126                                      TALLOC_CTX *mem_ctx,
 127                                      const char *service_path,
 128                                      char **base_volume)
 129 {
 130         return NT_STATUS_NOT_SUPPORTED;
 131 }
 132
 133 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
 134                                  TALLOC_CTX *mem_ctx,
 135                                  const char *base_volume,
 136                                  time_t *tstamp,
 137                                  bool rw,
 138                                  char **base_path,
 139                                  char **snap_path)
 140 {
 141         return NT_STATUS_NOT_SUPPORTED;
 142 }
 143
 144 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
 145                                  TALLOC_CTX *mem_ctx,
 146                                  char *base_path,
 147                                  char *snap_path)
 148 {
 149         return NT_STATUS_NOT_SUPPORTED;
 150 }
 151
 152 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 153                            const char *mask, uint32_t attr)
 154 {
 155         return NULL;
 156 }
 157
 158 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 159                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 160 {
 161         return NULL;
 162 }
 163
 164 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 165 {
 166         ;
 167 }
 168
 169 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 170 {
 171         return (long)-1;
 172 }
 173
 174 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 175 {
 176         ;
 177 }
 178
 179 static int skel_mkdirat(vfs_handle_struct *handle,
 180                 struct files_struct *dirfsp,
 181                 const struct smb_filename *smb_fname,
 182                 mode_t mode)
 183 {
 184         errno = ENOSYS;
 185         return -1;
 186 }
 187
 188 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 189 {
 190         errno = ENOSYS;
 191         return -1;
 192 }
 193
 194 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 195                      files_struct *fsp, int flags, mode_t mode)
 196 {
 197         errno = ENOSYS;
 198         return -1;
 199 }
 200
 201 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 202                                  struct smb_request *req,
 203                                  uint16_t root_dir_fid,
 204                                  struct smb_filename *smb_fname,
 205                                  uint32_t access_mask,
 206                                  uint32_t share_access,
 207                                  uint32_t create_disposition,
 208                                  uint32_t create_options,
 209                                  uint32_t file_attributes,
 210                                  uint32_t oplock_request,
 211                                  const struct smb2_lease *lease,
 212                                  uint64_t allocation_size,
 213                                  uint32_t private_flags,
 214                                  struct security_descriptor *sd,
 215                                  struct ea_list *ea_list,
 216                                  files_struct **result, int *pinfo,
 217                                  const struct smb2_create_blobs *in_context_blobs,
 218                                  struct smb2_create_blobs *out_context_blobs)
 219 {
 220         return NT_STATUS_NOT_IMPLEMENTED;
 221 }
 222
 223 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 224 {
 225         errno = ENOSYS;
 226         return -1;
 227 }
 228
 229 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 230                           void *data, size_t n, off_t offset)
 231 {
 232         errno = ENOSYS;
 233         return -1;
 234 }
 235
 236 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 237                                           TALLOC_CTX *mem_ctx,
 238                                           struct tevent_context *ev,
 239                                           struct files_struct *fsp,
 240                                           void *data, size_t n, off_t offset)
 241 {
 242         return NULL;
 243 }
 244
 245 static ssize_t skel_pread_recv(struct tevent_req *req,
 246                                struct vfs_aio_state *vfs_aio_state)
 247 {
 248         vfs_aio_state->error = ENOSYS;
 249         return -1;
 250 }
 251
 252 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 253                            const void *data, size_t n, off_t offset)
 254 {
 255         errno = ENOSYS;
 256         return -1;
 257 }
 258
 259 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 260                                            TALLOC_CTX *mem_ctx,
 261                                            struct tevent_context *ev,
 262                                            struct files_struct *fsp,
 263                                            const void *data,
 264                                            size_t n, off_t offset)
 265 {
 266         return NULL;
 267 }
 268
 269 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 270                                 struct vfs_aio_state *vfs_aio_state)
 271 {
 272         vfs_aio_state->error = ENOSYS;
 273         return -1;
 274 }
 275
 276 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 277                         off_t offset, int whence)
 278 {
 279         errno = ENOSYS;
 280         return (off_t) - 1;
 281 }
 282
 283 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 284                              files_struct *fromfsp, const DATA_BLOB *hdr,
 285                              off_t offset, size_t n)
 286 {
 287         errno = ENOSYS;
 288         return -1;
 289 }
 290
 291 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 292                              files_struct *tofsp, off_t offset, size_t n)
 293 {
 294         errno = ENOSYS;
 295         return -1;
 296 }
 297
 298 static int skel_renameat(vfs_handle_struct *handle,
 299                        files_struct *srcfsp,
 300                        const struct smb_filename *smb_fname_src,
 301                        files_struct *dstfsp,
 302                        const struct smb_filename *smb_fname_dst)
 303 {
 304         errno = ENOSYS;
 305         return -1;
 306 }
 307
 308 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 309                                           TALLOC_CTX *mem_ctx,
 310                                           struct tevent_context *ev,
 311                                           struct files_struct *fsp)
 312 {
 313         return NULL;
 314 }
 315
 316 static int skel_fsync_recv(struct tevent_req *req,
 317                            struct vfs_aio_state *vfs_aio_state)
 318 {
 319         vfs_aio_state->error = ENOSYS;
 320         return -1;
 321 }
 322
 323 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 324 {
 325         errno = ENOSYS;
 326         return -1;
 327 }
 328
 329 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 330                       SMB_STRUCT_STAT *sbuf)
 331 {
 332         errno = ENOSYS;
 333         return -1;
 334 }
 335
 336 static int skel_lstat(vfs_handle_struct *handle,
 337                       struct smb_filename *smb_fname)
 338 {
 339         errno = ENOSYS;
 340         return -1;
 341 }
 342
 343 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 344                                     struct files_struct *fsp,
 345                                     const SMB_STRUCT_STAT *sbuf)
 346 {
 347         errno = ENOSYS;
 348         return -1;
 349 }
 350
 351 static int skel_unlinkat(vfs_handle_struct *handle,
 352                         struct files_struct *dirfsp,
 353                         const struct smb_filename *smb_fname,
 354                         int flags)
 355 {
 356         errno = ENOSYS;
 357         return -1;
 358 }
 359
 360 static int skel_chmod(vfs_handle_struct *handle,
 361                         const struct smb_filename *smb_fname,
 362                         mode_t mode)
 363 {
 364         errno = ENOSYS;
 365         return -1;
 366 }
 367
 368 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 369                        mode_t mode)
 370 {
 371         errno = ENOSYS;
 372         return -1;
 373 }
 374
 375 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 376                        uid_t uid, gid_t gid)
 377 {
 378         errno = ENOSYS;
 379         return -1;
 380 }
 381
 382 static int skel_lchown(vfs_handle_struct *handle,
 383                         const struct smb_filename *smb_fname,
 384                         uid_t uid,
 385                         gid_t gid)
 386 {
 387         errno = ENOSYS;
 388         return -1;
 389 }
 390
 391 static int skel_chdir(vfs_handle_struct *handle,
 392                         const struct smb_filename *smb_fname)
 393 {
 394         errno = ENOSYS;
 395         return -1;
 396 }
 397
 398 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 399                                 TALLOC_CTX *ctx)
 400 {
 401         errno = ENOSYS;
 402         return NULL;
 403 }
 404
 405 static int skel_ntimes(vfs_handle_struct *handle,
 406                        const struct smb_filename *smb_fname,
 407                        struct smb_file_time *ft)
 408 {
 409         errno = ENOSYS;
 410         return -1;
 411 }
 412
 413 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 414                           off_t offset)
 415 {
 416         errno = ENOSYS;
 417         return -1;
 418 }
 419
 420 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 421                           uint32_t mode, off_t offset, off_t len)
 422 {
 423         errno = ENOSYS;
 424         return -1;
 425 }
 426
 427 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 428                       off_t offset, off_t count, int type)
 429 {
 430         errno = ENOSYS;
 431         return false;
 432 }
 433
 434 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 435                              struct files_struct *fsp,
 436                              uint32_t share_mode, uint32_t access_mask)
 437 {
 438         errno = ENOSYS;
 439         return -1;
 440 }
 441
 442 static int skel_fcntl(struct vfs_handle_struct *handle,
 443                       struct files_struct *fsp, int cmd, va_list cmd_arg)
 444 {
 445         errno = ENOSYS;
 446         return -1;
 447 }
 448
 449 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 450                                struct files_struct *fsp, int leasetype)
 451 {
 452         errno = ENOSYS;
 453         return -1;
 454 }
 455
 456 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 457                          off_t *poffset, off_t *pcount, int *ptype,
 458                          pid_t *ppid)
 459 {
 460         errno = ENOSYS;
 461         return false;
 462 }
 463
 464 static int skel_symlinkat(vfs_handle_struct *handle,
 465                         const struct smb_filename *link_contents,
 466                         struct files_struct *dirfsp,
 467                         const struct smb_filename *new_smb_fname)
 468 {
 469         errno = ENOSYS;
 470         return -1;
 471 }
 472
 473 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
 474                         files_struct *dirfsp,
 475                         const struct smb_filename *smb_fname,
 476                         char *buf,
 477                         size_t bufsiz)
 478 {
 479         errno = ENOSYS;
 480         return -1;
 481 }
 482
 483 static int skel_linkat(vfs_handle_struct *handle,
 484                         files_struct *srcfsp,
 485                         const struct smb_filename *old_smb_fname,
 486                         files_struct *dstfsp,
 487                         const struct smb_filename *new_smb_fname,
 488                         int flags)
 489 {
 490         errno = ENOSYS;
 491         return -1;
 492 }
 493
 494 static int skel_mknodat(vfs_handle_struct *handle,
 495                         files_struct *dirfsp,
 496                         const struct smb_filename *smb_fname,
 497                         mode_t mode,
 498                         SMB_DEV_T dev)
 499 {
 500         errno = ENOSYS;
 501         return -1;
 502 }
 503
 504 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 505                         TALLOC_CTX *ctx,
 506                         const struct smb_filename *smb_fname)
 507 {
 508         errno = ENOSYS;
 509         return NULL;
 510 }
 511
 512 static int skel_chflags(vfs_handle_struct *handle,
 513                         const struct smb_filename *smb_fname,
 514                         uint flags)
 515 {
 516         errno = ENOSYS;
 517         return -1;
 518 }
 519
 520 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 521                                           const SMB_STRUCT_STAT *sbuf)
 522 {
 523         struct file_id id;
 524         ZERO_STRUCT(id);
 525         errno = ENOSYS;
 526         return id;
 527 }
 528
 529 static uint64_t skel_fs_file_id(vfs_handle_struct *handle,
 530                                 const SMB_STRUCT_STAT *sbuf)
 531 {
 532         errno = ENOSYS;
 533         return 0;
 534 }
 535
 536 struct skel_offload_read_state {
 537         bool dummy;
 538 };
 539
 540 static struct tevent_req *skel_offload_read_send(
 541         TALLOC_CTX *mem_ctx,
 542         struct tevent_context *ev,
 543         struct vfs_handle_struct *handle,
 544         struct files_struct *fsp,
 545         uint32_t fsctl,
 546         uint32_t ttl,
 547         off_t offset,
 548         size_t to_copy)
 549 {
 550         struct tevent_req *req = NULL;
 551         struct skel_offload_read_state *state = NULL;
 552
 553         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 554         if (req == NULL) {
 555                 return NULL;
 556         }
 557
 558         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 559         return tevent_req_post(req, ev);
 560 }
 561
 562 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 563                                        struct vfs_handle_struct *handle,
 564                                        TALLOC_CTX *mem_ctx,
 565                                        DATA_BLOB *_token_blob)
 566 {
 567         NTSTATUS status;
 568
 569         if (tevent_req_is_nterror(req, &status)) {
 570                 tevent_req_received(req);
 571                 return status;
 572         }
 573         tevent_req_received(req);
 574
 575         return NT_STATUS_OK;
 576 }
 577
 578 struct skel_cc_state {
 579         uint64_t unused;
 580 };
 581 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 582                                                TALLOC_CTX *mem_ctx,
 583                                                struct tevent_context *ev,
 584                                                uint32_t fsctl,
 585                                                DATA_BLOB *token,
 586                                                off_t transfer_offset,
 587                                                struct files_struct *dest_fsp,
 588                                                off_t dest_off,
 589                                                off_t num)
 590 {
 591         struct tevent_req *req;
 592         struct skel_cc_state *cc_state;
 593
 594         req = tevent_req_create(mem_ctx, &cc_state, struct skel_cc_state);
 595         if (req == NULL) {
 596                 return NULL;
 597         }
 598
 599         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 600         return tevent_req_post(req, ev);
 601 }
 602
 603 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 604                                      struct tevent_req *req,
 605                                      off_t *copied)
 606 {
 607         NTSTATUS status;
 608
 609         if (tevent_req_is_nterror(req, &status)) {
 610                 tevent_req_received(req);
 611                 return status;
 612         }
 613         tevent_req_received(req);
 614
 615         return NT_STATUS_OK;
 616 }
 617
 618 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 619                                      TALLOC_CTX *mem_ctx,
 620                                      struct files_struct *fsp,
 621                                      struct smb_filename *smb_fname,
 622                                      uint16_t *_compression_fmt)
 623 {
 624         return NT_STATUS_INVALID_DEVICE_REQUEST;
 625 }
 626
 627 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 628                                      TALLOC_CTX *mem_ctx,
 629                                      struct files_struct *fsp,
 630                                      uint16_t compression_fmt)
 631 {
 632         return NT_STATUS_INVALID_DEVICE_REQUEST;
 633 }
 634
 635 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 636                                 struct files_struct *fsp,
 637                                 const struct smb_filename *smb_fname,
 638                                 TALLOC_CTX *mem_ctx,
 639                                 unsigned int *num_streams,
 640                                 struct stream_struct **streams)
 641 {
 642         return NT_STATUS_NOT_IMPLEMENTED;
 643 }
 644
 645 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 646                                   const struct smb_filename *path,
 647                                   const char *name,
 648                                   TALLOC_CTX *mem_ctx, char **found_name)
 649 {
 650         errno = ENOSYS;
 651         return -1;
 652 }
 653
 654 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 655                                 const struct smb_filename *smb_fname)
 656 {
 657         errno = ENOSYS;
 658         return NULL;
 659 }
 660
 661 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 662                                       struct byte_range_lock *br_lck,
 663                                       struct lock_struct *plock)
 664 {
 665         return NT_STATUS_NOT_IMPLEMENTED;
 666 }
 667
 668 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 669                                     struct byte_range_lock *br_lck,
 670                                     const struct lock_struct *plock)
 671 {
 672         errno = ENOSYS;
 673         return false;
 674 }
 675
 676 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 677                                    struct files_struct *fsp,
 678                                    struct lock_struct *plock)
 679 {
 680         errno = ENOSYS;
 681         return false;
 682 }
 683
 684 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 685                                     const char *mapped_name,
 686                                     enum vfs_translate_direction direction,
 687                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 688 {
 689         return NT_STATUS_NOT_IMPLEMENTED;
 690 }
 691
 692 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 693                            struct files_struct *fsp,
 694                            TALLOC_CTX *ctx,
 695                            uint32_t function,
 696                            uint16_t req_flags,  /* Needed for UNICODE ... */
 697                            const uint8_t *_in_data,
 698                            uint32_t in_len,
 699                            uint8_t **_out_data,
 700                            uint32_t max_out_len, uint32_t *out_len)
 701 {
 702         return NT_STATUS_NOT_IMPLEMENTED;
 703 }
 704
 705 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 706                                   const struct smb_filename *fname,
 707                                   TALLOC_CTX *mem_ctx,
 708                                   struct readdir_attr_data **pattr_data)
 709 {
 710         return NT_STATUS_NOT_IMPLEMENTED;
 711 }
 712
 713 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 714                                 struct smb_filename *smb_fname,
 715                                 uint32_t *dosmode)
 716 {
 717         return NT_STATUS_NOT_IMPLEMENTED;
 718 }
 719
 720 struct skel_get_dos_attributes_state {
 721         struct vfs_aio_state aio_state;
 722         uint32_t dosmode;
 723 };
 724
 725 static struct tevent_req *skel_get_dos_attributes_send(
 726                         TALLOC_CTX *mem_ctx,
 727                         struct tevent_context *ev,
 728                         struct vfs_handle_struct *handle,
 729                         files_struct *dir_fsp,
 730                         struct smb_filename *smb_fname)
 731 {
 732         struct tevent_req *req = NULL;
 733         struct skel_get_dos_attributes_state *state = NULL;
 734
 735         req = tevent_req_create(mem_ctx, &state,
 736                                 struct skel_get_dos_attributes_state);
 737         if (req == NULL) {
 738                 return NULL;
 739         }
 740
 741         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 742         return tevent_req_post(req, ev);
 743 }
 744
 745 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
 746                                              struct vfs_aio_state *aio_state,
 747                                              uint32_t *dosmode)
 748 {
 749         struct skel_get_dos_attributes_state *state =
 750                 tevent_req_data(req,
 751                 struct skel_get_dos_attributes_state);
 752         NTSTATUS status;
 753
 754         if (tevent_req_is_nterror(req, &status)) {
 755                 tevent_req_received(req);
 756                 return status;
 757         }
 758
 759         *aio_state = state->aio_state;
 760         *dosmode = state->dosmode;
 761         tevent_req_received(req);
 762         return NT_STATUS_OK;
 763 }
 764
 765 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
 766                                 struct files_struct *fsp,
 767                                 uint32_t *dosmode)
 768 {
 769         return NT_STATUS_NOT_IMPLEMENTED;
 770 }
 771
 772 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
 773                                 const struct smb_filename *smb_fname,
 774                                 uint32_t dosmode)
 775 {
 776         return NT_STATUS_NOT_IMPLEMENTED;
 777 }
 778
 779 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
 780                                 struct files_struct *fsp,
 781                                 uint32_t dosmode)
 782 {
 783         return NT_STATUS_NOT_IMPLEMENTED;
 784 }
 785
 786 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 787                                  uint32_t security_info,
 788                                  TALLOC_CTX *mem_ctx,
 789                                  struct security_descriptor **ppdesc)
 790 {
 791         return NT_STATUS_NOT_IMPLEMENTED;
 792 }
 793
 794 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
 795                                 const struct smb_filename *smb_fname,
 796                                 uint32_t security_info,
 797                                 TALLOC_CTX *mem_ctx,
 798                                 struct security_descriptor **ppdesc)
 799 {
 800         return NT_STATUS_NOT_IMPLEMENTED;
 801 }
 802
 803 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 804                                  uint32_t security_info_sent,
 805                                  const struct security_descriptor *psd)
 806 {
 807         return NT_STATUS_NOT_IMPLEMENTED;
 808 }
 809
 810 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
 811                                        const struct smb_filename *smb_fname,
 812                                        SMB_ACL_TYPE_T type,
 813                                        TALLOC_CTX *mem_ctx)
 814 {
 815         errno = ENOSYS;
 816         return (SMB_ACL_T) NULL;
 817 }
 818
 819 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
 820                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
 821 {
 822         errno = ENOSYS;
 823         return (SMB_ACL_T) NULL;
 824 }
 825
 826 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
 827                                 const struct smb_filename *smb_fname,
 828                                 TALLOC_CTX *mem_ctx,
 829                                 char **blob_description,
 830                                 DATA_BLOB *blob)
 831 {
 832         errno = ENOSYS;
 833         return -1;
 834 }
 835
 836 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
 837                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
 838                                     char **blob_description, DATA_BLOB *blob)
 839 {
 840         errno = ENOSYS;
 841         return -1;
 842 }
 843
 844 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
 845                                 const struct smb_filename *smb_fname,
 846                                 SMB_ACL_TYPE_T acltype,
 847                                 SMB_ACL_T theacl)
 848 {
 849         errno = ENOSYS;
 850         return -1;
 851 }
 852
 853 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
 854                                SMB_ACL_T theacl)
 855 {
 856         errno = ENOSYS;
 857         return -1;
 858 }
 859
 860 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
 861                                         const struct smb_filename *smb_fname)
 862 {
 863         errno = ENOSYS;
 864         return -1;
 865 }
 866
 867 static ssize_t skel_getxattr(vfs_handle_struct *handle,
 868                                 const struct smb_filename *smb_fname,
 869                                 const char *name,
 870                                 void *value,
 871                                 size_t size)
 872 {
 873         errno = ENOSYS;
 874         return -1;
 875 }
 876
 877 struct skel_getxattrat_state {
 878         struct vfs_aio_state aio_state;
 879         ssize_t xattr_size;
 880         uint8_t *xattr_value;
 881 };
 882
 883 static struct tevent_req *skel_getxattrat_send(
 884                         TALLOC_CTX *mem_ctx,
 885                         struct tevent_context *ev,
 886                         struct vfs_handle_struct *handle,
 887                         files_struct *dir_fsp,
 888                         const struct smb_filename *smb_fname,
 889                         const char *xattr_name,
 890                         size_t alloc_hint)
 891 {
 892         struct tevent_req *req = NULL;
 893         struct skel_getxattrat_state *state = NULL;
 894
 895         req = tevent_req_create(mem_ctx, &state,
 896                                 struct skel_getxattrat_state);
 897         if (req == NULL) {
 898                 return NULL;
 899         }
 900
 901         tevent_req_error(req, ENOSYS);
 902         return tevent_req_post(req, ev);
 903 }
 904
 905 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
 906                                     struct vfs_aio_state *aio_state,
 907                                     TALLOC_CTX *mem_ctx,
 908                                     uint8_t **xattr_value)
 909 {
 910         struct skel_getxattrat_state *state = tevent_req_data(
 911                 req, struct skel_getxattrat_state);
 912         ssize_t xattr_size;
 913
 914         if (tevent_req_is_unix_error(req, &aio_state->error)) {
 915                 tevent_req_received(req);
 916                 return -1;
 917         }
 918
 919         *aio_state = state->aio_state;
 920         xattr_size = state->xattr_size;
 921         if (xattr_value != NULL) {
 922                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
 923         }
 924
 925         tevent_req_received(req);
 926         return xattr_size;
 927 }
 928
 929 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
 930                               struct files_struct *fsp, const char *name,
 931                               void *value, size_t size)
 932 {
 933         errno = ENOSYS;
 934         return -1;
 935 }
 936
 937 static ssize_t skel_listxattr(vfs_handle_struct *handle,
 938                                 const struct smb_filename *smb_fname,
 939                                 char *list,
 940                                 size_t size)
 941 {
 942         errno = ENOSYS;
 943         return -1;
 944 }
 945
 946 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
 947                                struct files_struct *fsp, char *list,
 948                                size_t size)
 949 {
 950         errno = ENOSYS;
 951         return -1;
 952 }
 953
 954 static int skel_removexattr(vfs_handle_struct *handle,
 955                         const struct smb_filename *smb_fname,
 956                         const char *name)
 957 {
 958         errno = ENOSYS;
 959         return -1;
 960 }
 961
 962 static int skel_fremovexattr(vfs_handle_struct *handle,
 963                              struct files_struct *fsp, const char *name)
 964 {
 965         errno = ENOSYS;
 966         return -1;
 967 }
 968
 969 static int skel_setxattr(vfs_handle_struct *handle,
 970                         const struct smb_filename *smb_fname,
 971                         const char *name,
 972                         const void *value,
 973                         size_t size,
 974                         int flags)
 975 {
 976         errno = ENOSYS;
 977         return -1;
 978 }
 979
 980 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
 981                           const char *name, const void *value, size_t size,
 982                           int flags)
 983 {
 984         errno = ENOSYS;
 985         return -1;
 986 }
 987
 988 static bool skel_aio_force(struct vfs_handle_struct *handle,
 989                            struct files_struct *fsp)
 990 {
 991         errno = ENOSYS;
 992         return false;
 993 }
 994
 995 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
 996                                 struct smb_filename *file,
 997                                 struct security_acl *sacl,
 998                                 uint32_t access_requested,
 999                                 uint32_t access_denied)
1000 {
1001         return NT_STATUS_NOT_IMPLEMENTED;
1002 }
1003
1004 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
1005                                     struct files_struct *fsp,
1006                                     TALLOC_CTX *mem_ctx,
1007                                     DATA_BLOB *cookie)
1008 {
1009         return NT_STATUS_NOT_IMPLEMENTED;
1010 }
1011
1012 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1013                                         struct files_struct *fsp,
1014                                         const DATA_BLOB old_cookie,
1015                                         TALLOC_CTX *mem_ctx,
1016                                         DATA_BLOB *new_cookie)
1017 {
1018         return NT_STATUS_NOT_IMPLEMENTED;
1019 }
1020
1021 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1022                                        struct smb_request *smb1req,
1023                                        struct smbXsrv_open *op,
1024                                        const DATA_BLOB old_cookie,
1025                                        TALLOC_CTX *mem_ctx,
1026                                        struct files_struct **fsp,
1027                                        DATA_BLOB *new_cookie)
1028 {
1029         return NT_STATUS_NOT_IMPLEMENTED;
1030 }
1031
1032 /* VFS operations structure */
1033
1034 static struct vfs_fn_pointers skel_opaque_fns = {
1035         /* Disk operations */
1036
1037         .connect_fn = skel_connect,
1038         .disconnect_fn = skel_disconnect,
1039         .disk_free_fn = skel_disk_free,
1040         .get_quota_fn = skel_get_quota,
1041         .set_quota_fn = skel_set_quota,
1042         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1043         .statvfs_fn = skel_statvfs,
1044         .fs_capabilities_fn = skel_fs_capabilities,
1045         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1046         .create_dfs_pathat_fn = skel_create_dfs_pathat,
1047         .read_dfs_pathat_fn = skel_read_dfs_pathat,
1048         .snap_check_path_fn = skel_snap_check_path,
1049         .snap_create_fn = skel_snap_create,
1050         .snap_delete_fn = skel_snap_delete,
1051
1052         /* Directory operations */
1053
1054         .fdopendir_fn = skel_fdopendir,
1055         .readdir_fn = skel_readdir,
1056         .seekdir_fn = skel_seekdir,
1057         .telldir_fn = skel_telldir,
1058         .rewind_dir_fn = skel_rewind_dir,
1059         .mkdirat_fn = skel_mkdirat,
1060         .closedir_fn = skel_closedir,
1061
1062         /* File operations */
1063
1064         .open_fn = skel_open,
1065         .create_file_fn = skel_create_file,
1066         .close_fn = skel_close_fn,
1067         .pread_fn = skel_pread,
1068         .pread_send_fn = skel_pread_send,
1069         .pread_recv_fn = skel_pread_recv,
1070         .pwrite_fn = skel_pwrite,
1071         .pwrite_send_fn = skel_pwrite_send,
1072         .pwrite_recv_fn = skel_pwrite_recv,
1073         .lseek_fn = skel_lseek,
1074         .sendfile_fn = skel_sendfile,
1075         .recvfile_fn = skel_recvfile,
1076         .renameat_fn = skel_renameat,
1077         .fsync_send_fn = skel_fsync_send,
1078         .fsync_recv_fn = skel_fsync_recv,
1079         .stat_fn = skel_stat,
1080         .fstat_fn = skel_fstat,
1081         .lstat_fn = skel_lstat,
1082         .get_alloc_size_fn = skel_get_alloc_size,
1083         .unlinkat_fn = skel_unlinkat,
1084         .chmod_fn = skel_chmod,
1085         .fchmod_fn = skel_fchmod,
1086         .fchown_fn = skel_fchown,
1087         .lchown_fn = skel_lchown,
1088         .chdir_fn = skel_chdir,
1089         .getwd_fn = skel_getwd,
1090         .ntimes_fn = skel_ntimes,
1091         .ftruncate_fn = skel_ftruncate,
1092         .fallocate_fn = skel_fallocate,
1093         .lock_fn = skel_lock,
1094         .kernel_flock_fn = skel_kernel_flock,
1095         .fcntl_fn = skel_fcntl,
1096         .linux_setlease_fn = skel_linux_setlease,
1097         .getlock_fn = skel_getlock,
1098         .symlinkat_fn = skel_symlinkat,
1099         .readlinkat_fn = skel_vfs_readlinkat,
1100         .linkat_fn = skel_linkat,
1101         .mknodat_fn = skel_mknodat,
1102         .realpath_fn = skel_realpath,
1103         .chflags_fn = skel_chflags,
1104         .file_id_create_fn = skel_file_id_create,
1105         .fs_file_id_fn = skel_fs_file_id,
1106         .offload_read_send_fn = skel_offload_read_send,
1107         .offload_read_recv_fn = skel_offload_read_recv,
1108         .offload_write_send_fn = skel_offload_write_send,
1109         .offload_write_recv_fn = skel_offload_write_recv,
1110         .get_compression_fn = skel_get_compression,
1111         .set_compression_fn = skel_set_compression,
1112
1113         .streaminfo_fn = skel_streaminfo,
1114         .get_real_filename_fn = skel_get_real_filename,
1115         .connectpath_fn = skel_connectpath,
1116         .brl_lock_windows_fn = skel_brl_lock_windows,
1117         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1118         .strict_lock_check_fn = skel_strict_lock_check,
1119         .translate_name_fn = skel_translate_name,
1120         .fsctl_fn = skel_fsctl,
1121         .readdir_attr_fn = skel_readdir_attr,
1122         .audit_file_fn = skel_audit_file,
1123
1124         /* DOS attributes. */
1125         .get_dos_attributes_fn = skel_get_dos_attributes,
1126         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1127         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1128         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1129         .set_dos_attributes_fn = skel_set_dos_attributes,
1130         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1131
1132         /* NT ACL operations. */
1133
1134         .fget_nt_acl_fn = skel_fget_nt_acl,
1135         .get_nt_acl_fn = skel_get_nt_acl,
1136         .fset_nt_acl_fn = skel_fset_nt_acl,
1137
1138         /* POSIX ACL operations. */
1139
1140         .sys_acl_get_file_fn = skel_sys_acl_get_file,
1141         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1142         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
1143         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1144         .sys_acl_set_file_fn = skel_sys_acl_set_file,
1145         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1146         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1147
1148         /* EA operations. */
1149         .getxattr_fn = skel_getxattr,
1150         .getxattrat_send_fn = skel_getxattrat_send,
1151         .getxattrat_recv_fn = skel_getxattrat_recv,
1152         .fgetxattr_fn = skel_fgetxattr,
1153         .listxattr_fn = skel_listxattr,
1154         .flistxattr_fn = skel_flistxattr,
1155         .removexattr_fn = skel_removexattr,
1156         .fremovexattr_fn = skel_fremovexattr,
1157         .setxattr_fn = skel_setxattr,
1158         .fsetxattr_fn = skel_fsetxattr,
1159
1160         /* aio operations */
1161         .aio_force_fn = skel_aio_force,
1162
1163         /* durable handle operations */
1164         .durable_cookie_fn = skel_durable_cookie,
1165         .durable_disconnect_fn = skel_durable_disconnect,
1166         .durable_reconnect_fn = skel_durable_reconnect,
1167 };
1168
1169 static_decl_vfs;
1170 NTSTATUS vfs_skel_opaque_init(TALLOC_CTX *ctx)
1171 {
1172         /*
1173          * smb_vfs_assert_all_fns() makes sure every
1174          * call is implemented.
1175          *
1176          * An opaque module requires this!
1177          */
1178         smb_vfs_assert_all_fns(&skel_opaque_fns, "skel_opaque");
1179         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_opaque",
1180                                 &skel_opaque_fns);
1181 }