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