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