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