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_openat(struct vfs_handle_struct *handle,
 195                        const struct files_struct *dirfsp,
 196                        const struct smb_filename *smb_fname,
 197                        struct files_struct *fsp,
 198                        int flags,
 199                        mode_t mode)
 200 {
 201         errno = ENOSYS;
 202         return -1;
 203 }
 204
 205 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 206                                  struct smb_request *req,
 207                                  struct files_struct **dirfsp,
 208                                  struct smb_filename *smb_fname,
 209                                  uint32_t access_mask,
 210                                  uint32_t share_access,
 211                                  uint32_t create_disposition,
 212                                  uint32_t create_options,
 213                                  uint32_t file_attributes,
 214                                  uint32_t oplock_request,
 215                                  const struct smb2_lease *lease,
 216                                  uint64_t allocation_size,
 217                                  uint32_t private_flags,
 218                                  struct security_descriptor *sd,
 219                                  struct ea_list *ea_list,
 220                                  files_struct **result, int *pinfo,
 221                                  const struct smb2_create_blobs *in_context_blobs,
 222                                  struct smb2_create_blobs *out_context_blobs)
 223 {
 224         return NT_STATUS_NOT_IMPLEMENTED;
 225 }
 226
 227 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 228 {
 229         errno = ENOSYS;
 230         return -1;
 231 }
 232
 233 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 234                           void *data, size_t n, off_t offset)
 235 {
 236         errno = ENOSYS;
 237         return -1;
 238 }
 239
 240 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 241                                           TALLOC_CTX *mem_ctx,
 242                                           struct tevent_context *ev,
 243                                           struct files_struct *fsp,
 244                                           void *data, size_t n, off_t offset)
 245 {
 246         return NULL;
 247 }
 248
 249 static ssize_t skel_pread_recv(struct tevent_req *req,
 250                                struct vfs_aio_state *vfs_aio_state)
 251 {
 252         vfs_aio_state->error = ENOSYS;
 253         return -1;
 254 }
 255
 256 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 257                            const void *data, size_t n, off_t offset)
 258 {
 259         errno = ENOSYS;
 260         return -1;
 261 }
 262
 263 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 264                                            TALLOC_CTX *mem_ctx,
 265                                            struct tevent_context *ev,
 266                                            struct files_struct *fsp,
 267                                            const void *data,
 268                                            size_t n, off_t offset)
 269 {
 270         return NULL;
 271 }
 272
 273 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 274                                 struct vfs_aio_state *vfs_aio_state)
 275 {
 276         vfs_aio_state->error = ENOSYS;
 277         return -1;
 278 }
 279
 280 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 281                         off_t offset, int whence)
 282 {
 283         errno = ENOSYS;
 284         return (off_t) - 1;
 285 }
 286
 287 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 288                              files_struct *fromfsp, const DATA_BLOB *hdr,
 289                              off_t offset, size_t n)
 290 {
 291         errno = ENOSYS;
 292         return -1;
 293 }
 294
 295 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 296                              files_struct *tofsp, off_t offset, size_t n)
 297 {
 298         errno = ENOSYS;
 299         return -1;
 300 }
 301
 302 static int skel_renameat(vfs_handle_struct *handle,
 303                        files_struct *srcfsp,
 304                        const struct smb_filename *smb_fname_src,
 305                        files_struct *dstfsp,
 306                        const struct smb_filename *smb_fname_dst)
 307 {
 308         errno = ENOSYS;
 309         return -1;
 310 }
 311
 312 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 313                                           TALLOC_CTX *mem_ctx,
 314                                           struct tevent_context *ev,
 315                                           struct files_struct *fsp)
 316 {
 317         return NULL;
 318 }
 319
 320 static int skel_fsync_recv(struct tevent_req *req,
 321                            struct vfs_aio_state *vfs_aio_state)
 322 {
 323         vfs_aio_state->error = ENOSYS;
 324         return -1;
 325 }
 326
 327 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 328 {
 329         errno = ENOSYS;
 330         return -1;
 331 }
 332
 333 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 334                       SMB_STRUCT_STAT *sbuf)
 335 {
 336         errno = ENOSYS;
 337         return -1;
 338 }
 339
 340 static int skel_lstat(vfs_handle_struct *handle,
 341                       struct smb_filename *smb_fname)
 342 {
 343         errno = ENOSYS;
 344         return -1;
 345 }
 346
 347 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 348                                     struct files_struct *fsp,
 349                                     const SMB_STRUCT_STAT *sbuf)
 350 {
 351         errno = ENOSYS;
 352         return -1;
 353 }
 354
 355 static int skel_unlinkat(vfs_handle_struct *handle,
 356                         struct files_struct *dirfsp,
 357                         const struct smb_filename *smb_fname,
 358                         int flags)
 359 {
 360         errno = ENOSYS;
 361         return -1;
 362 }
 363
 364 static int skel_chmod(vfs_handle_struct *handle,
 365                         const struct smb_filename *smb_fname,
 366                         mode_t mode)
 367 {
 368         errno = ENOSYS;
 369         return -1;
 370 }
 371
 372 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 373                        mode_t mode)
 374 {
 375         errno = ENOSYS;
 376         return -1;
 377 }
 378
 379 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 380                        uid_t uid, gid_t gid)
 381 {
 382         errno = ENOSYS;
 383         return -1;
 384 }
 385
 386 static int skel_lchown(vfs_handle_struct *handle,
 387                         const struct smb_filename *smb_fname,
 388                         uid_t uid,
 389                         gid_t gid)
 390 {
 391         errno = ENOSYS;
 392         return -1;
 393 }
 394
 395 static int skel_chdir(vfs_handle_struct *handle,
 396                         const struct smb_filename *smb_fname)
 397 {
 398         errno = ENOSYS;
 399         return -1;
 400 }
 401
 402 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 403                                 TALLOC_CTX *ctx)
 404 {
 405         errno = ENOSYS;
 406         return NULL;
 407 }
 408
 409 static int skel_ntimes(vfs_handle_struct *handle,
 410                        const struct smb_filename *smb_fname,
 411                        struct smb_file_time *ft)
 412 {
 413         errno = ENOSYS;
 414         return -1;
 415 }
 416
 417 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 418                           off_t offset)
 419 {
 420         errno = ENOSYS;
 421         return -1;
 422 }
 423
 424 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 425                           uint32_t mode, off_t offset, off_t len)
 426 {
 427         errno = ENOSYS;
 428         return -1;
 429 }
 430
 431 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 432                       off_t offset, off_t count, int type)
 433 {
 434         errno = ENOSYS;
 435         return false;
 436 }
 437
 438 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 439                              struct files_struct *fsp,
 440                              uint32_t share_mode, uint32_t access_mask)
 441 {
 442         errno = ENOSYS;
 443         return -1;
 444 }
 445
 446 static int skel_fcntl(struct vfs_handle_struct *handle,
 447                       struct files_struct *fsp, int cmd, va_list cmd_arg)
 448 {
 449         errno = ENOSYS;
 450         return -1;
 451 }
 452
 453 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 454                                struct files_struct *fsp, int leasetype)
 455 {
 456         errno = ENOSYS;
 457         return -1;
 458 }
 459
 460 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 461                          off_t *poffset, off_t *pcount, int *ptype,
 462                          pid_t *ppid)
 463 {
 464         errno = ENOSYS;
 465         return false;
 466 }
 467
 468 static int skel_symlinkat(vfs_handle_struct *handle,
 469                         const struct smb_filename *link_contents,
 470                         struct files_struct *dirfsp,
 471                         const struct smb_filename *new_smb_fname)
 472 {
 473         errno = ENOSYS;
 474         return -1;
 475 }
 476
 477 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
 478                         files_struct *dirfsp,
 479                         const struct smb_filename *smb_fname,
 480                         char *buf,
 481                         size_t bufsiz)
 482 {
 483         errno = ENOSYS;
 484         return -1;
 485 }
 486
 487 static int skel_linkat(vfs_handle_struct *handle,
 488                         files_struct *srcfsp,
 489                         const struct smb_filename *old_smb_fname,
 490                         files_struct *dstfsp,
 491                         const struct smb_filename *new_smb_fname,
 492                         int flags)
 493 {
 494         errno = ENOSYS;
 495         return -1;
 496 }
 497
 498 static int skel_mknodat(vfs_handle_struct *handle,
 499                         files_struct *dirfsp,
 500                         const struct smb_filename *smb_fname,
 501                         mode_t mode,
 502                         SMB_DEV_T dev)
 503 {
 504         errno = ENOSYS;
 505         return -1;
 506 }
 507
 508 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 509                         TALLOC_CTX *ctx,
 510                         const struct smb_filename *smb_fname)
 511 {
 512         errno = ENOSYS;
 513         return NULL;
 514 }
 515
 516 static int skel_chflags(vfs_handle_struct *handle,
 517                         const struct smb_filename *smb_fname,
 518                         uint flags)
 519 {
 520         errno = ENOSYS;
 521         return -1;
 522 }
 523
 524 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 525                                           const SMB_STRUCT_STAT *sbuf)
 526 {
 527         struct file_id id;
 528         ZERO_STRUCT(id);
 529         errno = ENOSYS;
 530         return id;
 531 }
 532
 533 static uint64_t skel_fs_file_id(vfs_handle_struct *handle,
 534                                 const SMB_STRUCT_STAT *sbuf)
 535 {
 536         errno = ENOSYS;
 537         return 0;
 538 }
 539
 540 struct skel_offload_read_state {
 541         bool dummy;
 542 };
 543
 544 static struct tevent_req *skel_offload_read_send(
 545         TALLOC_CTX *mem_ctx,
 546         struct tevent_context *ev,
 547         struct vfs_handle_struct *handle,
 548         struct files_struct *fsp,
 549         uint32_t fsctl,
 550         uint32_t ttl,
 551         off_t offset,
 552         size_t to_copy)
 553 {
 554         struct tevent_req *req = NULL;
 555         struct skel_offload_read_state *state = NULL;
 556
 557         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 558         if (req == NULL) {
 559                 return NULL;
 560         }
 561
 562         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 563         return tevent_req_post(req, ev);
 564 }
 565
 566 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 567                                        struct vfs_handle_struct *handle,
 568                                        TALLOC_CTX *mem_ctx,
 569                                        DATA_BLOB *_token_blob)
 570 {
 571         NTSTATUS status;
 572
 573         if (tevent_req_is_nterror(req, &status)) {
 574                 tevent_req_received(req);
 575                 return status;
 576         }
 577         tevent_req_received(req);
 578
 579         return NT_STATUS_OK;
 580 }
 581
 582 struct skel_cc_state {
 583         uint64_t unused;
 584 };
 585 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 586                                                TALLOC_CTX *mem_ctx,
 587                                                struct tevent_context *ev,
 588                                                uint32_t fsctl,
 589                                                DATA_BLOB *token,
 590                                                off_t transfer_offset,
 591                                                struct files_struct *dest_fsp,
 592                                                off_t dest_off,
 593                                                off_t num)
 594 {
 595         struct tevent_req *req;
 596         struct skel_cc_state *cc_state;
 597
 598         req = tevent_req_create(mem_ctx, &cc_state, struct skel_cc_state);
 599         if (req == NULL) {
 600                 return NULL;
 601         }
 602
 603         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 604         return tevent_req_post(req, ev);
 605 }
 606
 607 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 608                                      struct tevent_req *req,
 609                                      off_t *copied)
 610 {
 611         NTSTATUS status;
 612
 613         if (tevent_req_is_nterror(req, &status)) {
 614                 tevent_req_received(req);
 615                 return status;
 616         }
 617         tevent_req_received(req);
 618
 619         return NT_STATUS_OK;
 620 }
 621
 622 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 623                                      TALLOC_CTX *mem_ctx,
 624                                      struct files_struct *fsp,
 625                                      struct smb_filename *smb_fname,
 626                                      uint16_t *_compression_fmt)
 627 {
 628         return NT_STATUS_INVALID_DEVICE_REQUEST;
 629 }
 630
 631 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 632                                      TALLOC_CTX *mem_ctx,
 633                                      struct files_struct *fsp,
 634                                      uint16_t compression_fmt)
 635 {
 636         return NT_STATUS_INVALID_DEVICE_REQUEST;
 637 }
 638
 639 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 640                                 struct files_struct *fsp,
 641                                 const struct smb_filename *smb_fname,
 642                                 TALLOC_CTX *mem_ctx,
 643                                 unsigned int *num_streams,
 644                                 struct stream_struct **streams)
 645 {
 646         return NT_STATUS_NOT_IMPLEMENTED;
 647 }
 648
 649 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 650                                   const struct smb_filename *path,
 651                                   const char *name,
 652                                   TALLOC_CTX *mem_ctx, char **found_name)
 653 {
 654         errno = ENOSYS;
 655         return -1;
 656 }
 657
 658 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 659                                 const struct smb_filename *smb_fname)
 660 {
 661         errno = ENOSYS;
 662         return NULL;
 663 }
 664
 665 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 666                                       struct byte_range_lock *br_lck,
 667                                       struct lock_struct *plock)
 668 {
 669         return NT_STATUS_NOT_IMPLEMENTED;
 670 }
 671
 672 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 673                                     struct byte_range_lock *br_lck,
 674                                     const struct lock_struct *plock)
 675 {
 676         errno = ENOSYS;
 677         return false;
 678 }
 679
 680 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 681                                    struct files_struct *fsp,
 682                                    struct lock_struct *plock)
 683 {
 684         errno = ENOSYS;
 685         return false;
 686 }
 687
 688 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 689                                     const char *mapped_name,
 690                                     enum vfs_translate_direction direction,
 691                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 692 {
 693         return NT_STATUS_NOT_IMPLEMENTED;
 694 }
 695
 696 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 697                            struct files_struct *fsp,
 698                            TALLOC_CTX *ctx,
 699                            uint32_t function,
 700                            uint16_t req_flags,  /* Needed for UNICODE ... */
 701                            const uint8_t *_in_data,
 702                            uint32_t in_len,
 703                            uint8_t **_out_data,
 704                            uint32_t max_out_len, uint32_t *out_len)
 705 {
 706         return NT_STATUS_NOT_IMPLEMENTED;
 707 }
 708
 709 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 710                                   const struct smb_filename *fname,
 711                                   TALLOC_CTX *mem_ctx,
 712                                   struct readdir_attr_data **pattr_data)
 713 {
 714         return NT_STATUS_NOT_IMPLEMENTED;
 715 }
 716
 717 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 718                                 struct smb_filename *smb_fname,
 719                                 uint32_t *dosmode)
 720 {
 721         return NT_STATUS_NOT_IMPLEMENTED;
 722 }
 723
 724 struct skel_get_dos_attributes_state {
 725         struct vfs_aio_state aio_state;
 726         uint32_t dosmode;
 727 };
 728
 729 static struct tevent_req *skel_get_dos_attributes_send(
 730                         TALLOC_CTX *mem_ctx,
 731                         struct tevent_context *ev,
 732                         struct vfs_handle_struct *handle,
 733                         files_struct *dir_fsp,
 734                         struct smb_filename *smb_fname)
 735 {
 736         struct tevent_req *req = NULL;
 737         struct skel_get_dos_attributes_state *state = NULL;
 738
 739         req = tevent_req_create(mem_ctx, &state,
 740                                 struct skel_get_dos_attributes_state);
 741         if (req == NULL) {
 742                 return NULL;
 743         }
 744
 745         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 746         return tevent_req_post(req, ev);
 747 }
 748
 749 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
 750                                              struct vfs_aio_state *aio_state,
 751                                              uint32_t *dosmode)
 752 {
 753         struct skel_get_dos_attributes_state *state =
 754                 tevent_req_data(req,
 755                 struct skel_get_dos_attributes_state);
 756         NTSTATUS status;
 757
 758         if (tevent_req_is_nterror(req, &status)) {
 759                 tevent_req_received(req);
 760                 return status;
 761         }
 762
 763         *aio_state = state->aio_state;
 764         *dosmode = state->dosmode;
 765         tevent_req_received(req);
 766         return NT_STATUS_OK;
 767 }
 768
 769 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
 770                                 struct files_struct *fsp,
 771                                 uint32_t *dosmode)
 772 {
 773         return NT_STATUS_NOT_IMPLEMENTED;
 774 }
 775
 776 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
 777                                 const struct smb_filename *smb_fname,
 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_get_nt_acl_at(vfs_handle_struct *handle,
 799                                 struct files_struct *dirfsp,
 800                                 const struct smb_filename *smb_fname,
 801                                 uint32_t security_info,
 802                                 TALLOC_CTX *mem_ctx,
 803                                 struct security_descriptor **ppdesc)
 804 {
 805         return NT_STATUS_NOT_IMPLEMENTED;
 806 }
 807
 808 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 809                                  uint32_t security_info_sent,
 810                                  const struct security_descriptor *psd)
 811 {
 812         return NT_STATUS_NOT_IMPLEMENTED;
 813 }
 814
 815 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
 816                                        const struct smb_filename *smb_fname,
 817                                        SMB_ACL_TYPE_T type,
 818                                        TALLOC_CTX *mem_ctx)
 819 {
 820         errno = ENOSYS;
 821         return (SMB_ACL_T) NULL;
 822 }
 823
 824 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
 825                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
 826 {
 827         errno = ENOSYS;
 828         return (SMB_ACL_T) NULL;
 829 }
 830
 831 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
 832                                 const struct smb_filename *smb_fname,
 833                                 TALLOC_CTX *mem_ctx,
 834                                 char **blob_description,
 835                                 DATA_BLOB *blob)
 836 {
 837         errno = ENOSYS;
 838         return -1;
 839 }
 840
 841 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
 842                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
 843                                     char **blob_description, DATA_BLOB *blob)
 844 {
 845         errno = ENOSYS;
 846         return -1;
 847 }
 848
 849 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
 850                                 const struct smb_filename *smb_fname,
 851                                 SMB_ACL_TYPE_T acltype,
 852                                 SMB_ACL_T theacl)
 853 {
 854         errno = ENOSYS;
 855         return -1;
 856 }
 857
 858 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
 859                                SMB_ACL_T theacl)
 860 {
 861         errno = ENOSYS;
 862         return -1;
 863 }
 864
 865 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
 866                                         const struct smb_filename *smb_fname)
 867 {
 868         errno = ENOSYS;
 869         return -1;
 870 }
 871
 872 static ssize_t skel_getxattr(vfs_handle_struct *handle,
 873                                 const struct smb_filename *smb_fname,
 874                                 const char *name,
 875                                 void *value,
 876                                 size_t size)
 877 {
 878         errno = ENOSYS;
 879         return -1;
 880 }
 881
 882 struct skel_getxattrat_state {
 883         struct vfs_aio_state aio_state;
 884         ssize_t xattr_size;
 885         uint8_t *xattr_value;
 886 };
 887
 888 static struct tevent_req *skel_getxattrat_send(
 889                         TALLOC_CTX *mem_ctx,
 890                         struct tevent_context *ev,
 891                         struct vfs_handle_struct *handle,
 892                         files_struct *dir_fsp,
 893                         const struct smb_filename *smb_fname,
 894                         const char *xattr_name,
 895                         size_t alloc_hint)
 896 {
 897         struct tevent_req *req = NULL;
 898         struct skel_getxattrat_state *state = NULL;
 899
 900         req = tevent_req_create(mem_ctx, &state,
 901                                 struct skel_getxattrat_state);
 902         if (req == NULL) {
 903                 return NULL;
 904         }
 905
 906         tevent_req_error(req, ENOSYS);
 907         return tevent_req_post(req, ev);
 908 }
 909
 910 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
 911                                     struct vfs_aio_state *aio_state,
 912                                     TALLOC_CTX *mem_ctx,
 913                                     uint8_t **xattr_value)
 914 {
 915         struct skel_getxattrat_state *state = tevent_req_data(
 916                 req, struct skel_getxattrat_state);
 917         ssize_t xattr_size;
 918
 919         if (tevent_req_is_unix_error(req, &aio_state->error)) {
 920                 tevent_req_received(req);
 921                 return -1;
 922         }
 923
 924         *aio_state = state->aio_state;
 925         xattr_size = state->xattr_size;
 926         if (xattr_value != NULL) {
 927                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
 928         }
 929
 930         tevent_req_received(req);
 931         return xattr_size;
 932 }
 933
 934 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
 935                               struct files_struct *fsp, const char *name,
 936                               void *value, size_t size)
 937 {
 938         errno = ENOSYS;
 939         return -1;
 940 }
 941
 942 static ssize_t skel_listxattr(vfs_handle_struct *handle,
 943                                 const struct smb_filename *smb_fname,
 944                                 char *list,
 945                                 size_t size)
 946 {
 947         errno = ENOSYS;
 948         return -1;
 949 }
 950
 951 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
 952                                struct files_struct *fsp, char *list,
 953                                size_t size)
 954 {
 955         errno = ENOSYS;
 956         return -1;
 957 }
 958
 959 static int skel_removexattr(vfs_handle_struct *handle,
 960                         const struct smb_filename *smb_fname,
 961                         const char *name)
 962 {
 963         errno = ENOSYS;
 964         return -1;
 965 }
 966
 967 static int skel_fremovexattr(vfs_handle_struct *handle,
 968                              struct files_struct *fsp, const char *name)
 969 {
 970         errno = ENOSYS;
 971         return -1;
 972 }
 973
 974 static int skel_setxattr(vfs_handle_struct *handle,
 975                         const struct smb_filename *smb_fname,
 976                         const char *name,
 977                         const void *value,
 978                         size_t size,
 979                         int flags)
 980 {
 981         errno = ENOSYS;
 982         return -1;
 983 }
 984
 985 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
 986                           const char *name, const void *value, size_t size,
 987                           int flags)
 988 {
 989         errno = ENOSYS;
 990         return -1;
 991 }
 992
 993 static bool skel_aio_force(struct vfs_handle_struct *handle,
 994                            struct files_struct *fsp)
 995 {
 996         errno = ENOSYS;
 997         return false;
 998 }
 999
1000 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
1001                                 struct smb_filename *file,
1002                                 struct security_acl *sacl,
1003                                 uint32_t access_requested,
1004                                 uint32_t access_denied)
1005 {
1006         return NT_STATUS_NOT_IMPLEMENTED;
1007 }
1008
1009 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
1010                                     struct files_struct *fsp,
1011                                     TALLOC_CTX *mem_ctx,
1012                                     DATA_BLOB *cookie)
1013 {
1014         return NT_STATUS_NOT_IMPLEMENTED;
1015 }
1016
1017 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1018                                         struct files_struct *fsp,
1019                                         const DATA_BLOB old_cookie,
1020                                         TALLOC_CTX *mem_ctx,
1021                                         DATA_BLOB *new_cookie)
1022 {
1023         return NT_STATUS_NOT_IMPLEMENTED;
1024 }
1025
1026 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1027                                        struct smb_request *smb1req,
1028                                        struct smbXsrv_open *op,
1029                                        const DATA_BLOB old_cookie,
1030                                        TALLOC_CTX *mem_ctx,
1031                                        struct files_struct **fsp,
1032                                        DATA_BLOB *new_cookie)
1033 {
1034         return NT_STATUS_NOT_IMPLEMENTED;
1035 }
1036
1037 /* VFS operations structure */
1038
1039 static struct vfs_fn_pointers skel_opaque_fns = {
1040         /* Disk operations */
1041
1042         .connect_fn = skel_connect,
1043         .disconnect_fn = skel_disconnect,
1044         .disk_free_fn = skel_disk_free,
1045         .get_quota_fn = skel_get_quota,
1046         .set_quota_fn = skel_set_quota,
1047         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1048         .statvfs_fn = skel_statvfs,
1049         .fs_capabilities_fn = skel_fs_capabilities,
1050         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1051         .create_dfs_pathat_fn = skel_create_dfs_pathat,
1052         .read_dfs_pathat_fn = skel_read_dfs_pathat,
1053         .snap_check_path_fn = skel_snap_check_path,
1054         .snap_create_fn = skel_snap_create,
1055         .snap_delete_fn = skel_snap_delete,
1056
1057         /* Directory operations */
1058
1059         .fdopendir_fn = skel_fdopendir,
1060         .readdir_fn = skel_readdir,
1061         .seekdir_fn = skel_seekdir,
1062         .telldir_fn = skel_telldir,
1063         .rewind_dir_fn = skel_rewind_dir,
1064         .mkdirat_fn = skel_mkdirat,
1065         .closedir_fn = skel_closedir,
1066
1067         /* File operations */
1068
1069         .openat_fn = skel_openat,
1070         .create_file_fn = skel_create_file,
1071         .close_fn = skel_close_fn,
1072         .pread_fn = skel_pread,
1073         .pread_send_fn = skel_pread_send,
1074         .pread_recv_fn = skel_pread_recv,
1075         .pwrite_fn = skel_pwrite,
1076         .pwrite_send_fn = skel_pwrite_send,
1077         .pwrite_recv_fn = skel_pwrite_recv,
1078         .lseek_fn = skel_lseek,
1079         .sendfile_fn = skel_sendfile,
1080         .recvfile_fn = skel_recvfile,
1081         .renameat_fn = skel_renameat,
1082         .fsync_send_fn = skel_fsync_send,
1083         .fsync_recv_fn = skel_fsync_recv,
1084         .stat_fn = skel_stat,
1085         .fstat_fn = skel_fstat,
1086         .lstat_fn = skel_lstat,
1087         .get_alloc_size_fn = skel_get_alloc_size,
1088         .unlinkat_fn = skel_unlinkat,
1089         .chmod_fn = skel_chmod,
1090         .fchmod_fn = skel_fchmod,
1091         .fchown_fn = skel_fchown,
1092         .lchown_fn = skel_lchown,
1093         .chdir_fn = skel_chdir,
1094         .getwd_fn = skel_getwd,
1095         .ntimes_fn = skel_ntimes,
1096         .ftruncate_fn = skel_ftruncate,
1097         .fallocate_fn = skel_fallocate,
1098         .lock_fn = skel_lock,
1099         .kernel_flock_fn = skel_kernel_flock,
1100         .fcntl_fn = skel_fcntl,
1101         .linux_setlease_fn = skel_linux_setlease,
1102         .getlock_fn = skel_getlock,
1103         .symlinkat_fn = skel_symlinkat,
1104         .readlinkat_fn = skel_vfs_readlinkat,
1105         .linkat_fn = skel_linkat,
1106         .mknodat_fn = skel_mknodat,
1107         .realpath_fn = skel_realpath,
1108         .chflags_fn = skel_chflags,
1109         .file_id_create_fn = skel_file_id_create,
1110         .fs_file_id_fn = skel_fs_file_id,
1111         .offload_read_send_fn = skel_offload_read_send,
1112         .offload_read_recv_fn = skel_offload_read_recv,
1113         .offload_write_send_fn = skel_offload_write_send,
1114         .offload_write_recv_fn = skel_offload_write_recv,
1115         .get_compression_fn = skel_get_compression,
1116         .set_compression_fn = skel_set_compression,
1117
1118         .streaminfo_fn = skel_streaminfo,
1119         .get_real_filename_fn = skel_get_real_filename,
1120         .connectpath_fn = skel_connectpath,
1121         .brl_lock_windows_fn = skel_brl_lock_windows,
1122         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1123         .strict_lock_check_fn = skel_strict_lock_check,
1124         .translate_name_fn = skel_translate_name,
1125         .fsctl_fn = skel_fsctl,
1126         .readdir_attr_fn = skel_readdir_attr,
1127         .audit_file_fn = skel_audit_file,
1128
1129         /* DOS attributes. */
1130         .get_dos_attributes_fn = skel_get_dos_attributes,
1131         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1132         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1133         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1134         .set_dos_attributes_fn = skel_set_dos_attributes,
1135         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1136
1137         /* NT ACL operations. */
1138
1139         .fget_nt_acl_fn = skel_fget_nt_acl,
1140         .get_nt_acl_at_fn = skel_get_nt_acl_at,
1141         .fset_nt_acl_fn = skel_fset_nt_acl,
1142
1143         /* POSIX ACL operations. */
1144
1145         .sys_acl_get_file_fn = skel_sys_acl_get_file,
1146         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1147         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
1148         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1149         .sys_acl_set_file_fn = skel_sys_acl_set_file,
1150         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1151         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1152
1153         /* EA operations. */
1154         .getxattr_fn = skel_getxattr,
1155         .getxattrat_send_fn = skel_getxattrat_send,
1156         .getxattrat_recv_fn = skel_getxattrat_recv,
1157         .fgetxattr_fn = skel_fgetxattr,
1158         .listxattr_fn = skel_listxattr,
1159         .flistxattr_fn = skel_flistxattr,
1160         .removexattr_fn = skel_removexattr,
1161         .fremovexattr_fn = skel_fremovexattr,
1162         .setxattr_fn = skel_setxattr,
1163         .fsetxattr_fn = skel_fsetxattr,
1164
1165         /* aio operations */
1166         .aio_force_fn = skel_aio_force,
1167
1168         /* durable handle operations */
1169         .durable_cookie_fn = skel_durable_cookie,
1170         .durable_disconnect_fn = skel_durable_disconnect,
1171         .durable_reconnect_fn = skel_durable_reconnect,
1172 };
1173
1174 static_decl_vfs;
1175 NTSTATUS vfs_skel_opaque_init(TALLOC_CTX *ctx)
1176 {
1177         /*
1178          * smb_vfs_assert_all_fns() makes sure every
1179          * call is implemented.
1180          *
1181          * An opaque module requires this!
1182          */
1183         smb_vfs_assert_all_fns(&skel_opaque_fns, "skel_opaque");
1184         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_opaque",
1185                                 &skel_opaque_fns);
1186 }