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 DIR *skel_opendir(vfs_handle_struct *handle,
 126                         const struct smb_filename *smb_fname,
 127                         const char *mask,
 128                         uint32_t attr)
 129 {
 130         return NULL;
 131 }
 132
 133 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
 134                                      TALLOC_CTX *mem_ctx,
 135                                      const char *service_path,
 136                                      char **base_volume)
 137 {
 138         return NT_STATUS_NOT_SUPPORTED;
 139 }
 140
 141 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
 142                                  TALLOC_CTX *mem_ctx,
 143                                  const char *base_volume,
 144                                  time_t *tstamp,
 145                                  bool rw,
 146                                  char **base_path,
 147                                  char **snap_path)
 148 {
 149         return NT_STATUS_NOT_SUPPORTED;
 150 }
 151
 152 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
 153                                  TALLOC_CTX *mem_ctx,
 154                                  char *base_path,
 155                                  char *snap_path)
 156 {
 157         return NT_STATUS_NOT_SUPPORTED;
 158 }
 159
 160 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 161                            const char *mask, uint32_t attr)
 162 {
 163         return NULL;
 164 }
 165
 166 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 167                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 168 {
 169         return NULL;
 170 }
 171
 172 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 173 {
 174         ;
 175 }
 176
 177 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 178 {
 179         return (long)-1;
 180 }
 181
 182 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 183 {
 184         ;
 185 }
 186
 187 static int skel_mkdirat(vfs_handle_struct *handle,
 188                 struct files_struct *dirfsp,
 189                 const struct smb_filename *smb_fname,
 190                 mode_t mode)
 191 {
 192         errno = ENOSYS;
 193         return -1;
 194 }
 195
 196 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 197 {
 198         errno = ENOSYS;
 199         return -1;
 200 }
 201
 202 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 203                      files_struct *fsp, int flags, mode_t mode)
 204 {
 205         errno = ENOSYS;
 206         return -1;
 207 }
 208
 209 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 210                                  struct smb_request *req,
 211                                  uint16_t root_dir_fid,
 212                                  struct smb_filename *smb_fname,
 213                                  uint32_t access_mask,
 214                                  uint32_t share_access,
 215                                  uint32_t create_disposition,
 216                                  uint32_t create_options,
 217                                  uint32_t file_attributes,
 218                                  uint32_t oplock_request,
 219                                  const struct smb2_lease *lease,
 220                                  uint64_t allocation_size,
 221                                  uint32_t private_flags,
 222                                  struct security_descriptor *sd,
 223                                  struct ea_list *ea_list,
 224                                  files_struct **result, int *pinfo,
 225                                  const struct smb2_create_blobs *in_context_blobs,
 226                                  struct smb2_create_blobs *out_context_blobs)
 227 {
 228         return NT_STATUS_NOT_IMPLEMENTED;
 229 }
 230
 231 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 232 {
 233         errno = ENOSYS;
 234         return -1;
 235 }
 236
 237 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 238                           void *data, size_t n, off_t offset)
 239 {
 240         errno = ENOSYS;
 241         return -1;
 242 }
 243
 244 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 245                                           TALLOC_CTX *mem_ctx,
 246                                           struct tevent_context *ev,
 247                                           struct files_struct *fsp,
 248                                           void *data, size_t n, off_t offset)
 249 {
 250         return NULL;
 251 }
 252
 253 static ssize_t skel_pread_recv(struct tevent_req *req,
 254                                struct vfs_aio_state *vfs_aio_state)
 255 {
 256         vfs_aio_state->error = ENOSYS;
 257         return -1;
 258 }
 259
 260 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 261                            const void *data, size_t n, off_t offset)
 262 {
 263         errno = ENOSYS;
 264         return -1;
 265 }
 266
 267 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 268                                            TALLOC_CTX *mem_ctx,
 269                                            struct tevent_context *ev,
 270                                            struct files_struct *fsp,
 271                                            const void *data,
 272                                            size_t n, off_t offset)
 273 {
 274         return NULL;
 275 }
 276
 277 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 278                                 struct vfs_aio_state *vfs_aio_state)
 279 {
 280         vfs_aio_state->error = ENOSYS;
 281         return -1;
 282 }
 283
 284 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 285                         off_t offset, int whence)
 286 {
 287         errno = ENOSYS;
 288         return (off_t) - 1;
 289 }
 290
 291 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 292                              files_struct *fromfsp, const DATA_BLOB *hdr,
 293                              off_t offset, size_t n)
 294 {
 295         errno = ENOSYS;
 296         return -1;
 297 }
 298
 299 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 300                              files_struct *tofsp, off_t offset, size_t n)
 301 {
 302         errno = ENOSYS;
 303         return -1;
 304 }
 305
 306 static int skel_renameat(vfs_handle_struct *handle,
 307                        files_struct *srcfsp,
 308                        const struct smb_filename *smb_fname_src,
 309                        files_struct *dstfsp,
 310                        const struct smb_filename *smb_fname_dst)
 311 {
 312         errno = ENOSYS;
 313         return -1;
 314 }
 315
 316 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 317                                           TALLOC_CTX *mem_ctx,
 318                                           struct tevent_context *ev,
 319                                           struct files_struct *fsp)
 320 {
 321         return NULL;
 322 }
 323
 324 static int skel_fsync_recv(struct tevent_req *req,
 325                            struct vfs_aio_state *vfs_aio_state)
 326 {
 327         vfs_aio_state->error = ENOSYS;
 328         return -1;
 329 }
 330
 331 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 332 {
 333         errno = ENOSYS;
 334         return -1;
 335 }
 336
 337 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 338                       SMB_STRUCT_STAT *sbuf)
 339 {
 340         errno = ENOSYS;
 341         return -1;
 342 }
 343
 344 static int skel_lstat(vfs_handle_struct *handle,
 345                       struct smb_filename *smb_fname)
 346 {
 347         errno = ENOSYS;
 348         return -1;
 349 }
 350
 351 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 352                                     struct files_struct *fsp,
 353                                     const SMB_STRUCT_STAT *sbuf)
 354 {
 355         errno = ENOSYS;
 356         return -1;
 357 }
 358
 359 static int skel_unlinkat(vfs_handle_struct *handle,
 360                         struct files_struct *dirfsp,
 361                         const struct smb_filename *smb_fname,
 362                         int flags)
 363 {
 364         errno = ENOSYS;
 365         return -1;
 366 }
 367
 368 static int skel_chmod(vfs_handle_struct *handle,
 369                         const struct smb_filename *smb_fname,
 370                         mode_t mode)
 371 {
 372         errno = ENOSYS;
 373         return -1;
 374 }
 375
 376 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 377                        mode_t mode)
 378 {
 379         errno = ENOSYS;
 380         return -1;
 381 }
 382
 383 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 384                        uid_t uid, gid_t gid)
 385 {
 386         errno = ENOSYS;
 387         return -1;
 388 }
 389
 390 static int skel_lchown(vfs_handle_struct *handle,
 391                         const struct smb_filename *smb_fname,
 392                         uid_t uid,
 393                         gid_t gid)
 394 {
 395         errno = ENOSYS;
 396         return -1;
 397 }
 398
 399 static int skel_chdir(vfs_handle_struct *handle,
 400                         const struct smb_filename *smb_fname)
 401 {
 402         errno = ENOSYS;
 403         return -1;
 404 }
 405
 406 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 407                                 TALLOC_CTX *ctx)
 408 {
 409         errno = ENOSYS;
 410         return NULL;
 411 }
 412
 413 static int skel_ntimes(vfs_handle_struct *handle,
 414                        const struct smb_filename *smb_fname,
 415                        struct smb_file_time *ft)
 416 {
 417         errno = ENOSYS;
 418         return -1;
 419 }
 420
 421 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 422                           off_t offset)
 423 {
 424         errno = ENOSYS;
 425         return -1;
 426 }
 427
 428 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 429                           uint32_t mode, off_t offset, off_t len)
 430 {
 431         errno = ENOSYS;
 432         return -1;
 433 }
 434
 435 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 436                       off_t offset, off_t count, int type)
 437 {
 438         errno = ENOSYS;
 439         return false;
 440 }
 441
 442 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 443                              struct files_struct *fsp,
 444                              uint32_t share_mode, uint32_t access_mask)
 445 {
 446         errno = ENOSYS;
 447         return -1;
 448 }
 449
 450 static int skel_fcntl(struct vfs_handle_struct *handle,
 451                       struct files_struct *fsp, int cmd, va_list cmd_arg)
 452 {
 453         errno = ENOSYS;
 454         return -1;
 455 }
 456
 457 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 458                                struct files_struct *fsp, int leasetype)
 459 {
 460         errno = ENOSYS;
 461         return -1;
 462 }
 463
 464 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 465                          off_t *poffset, off_t *pcount, int *ptype,
 466                          pid_t *ppid)
 467 {
 468         errno = ENOSYS;
 469         return false;
 470 }
 471
 472 static int skel_symlinkat(vfs_handle_struct *handle,
 473                         const char *link_contents,
 474                         struct files_struct *dirfsp,
 475                         const struct smb_filename *new_smb_fname)
 476 {
 477         errno = ENOSYS;
 478         return -1;
 479 }
 480
 481 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
 482                         files_struct *dirfsp,
 483                         const struct smb_filename *smb_fname,
 484                         char *buf,
 485                         size_t bufsiz)
 486 {
 487         errno = ENOSYS;
 488         return -1;
 489 }
 490
 491 static int skel_linkat(vfs_handle_struct *handle,
 492                         files_struct *srcfsp,
 493                         const struct smb_filename *old_smb_fname,
 494                         files_struct *dstfsp,
 495                         const struct smb_filename *new_smb_fname,
 496                         int flags)
 497 {
 498         errno = ENOSYS;
 499         return -1;
 500 }
 501
 502 static int skel_mknodat(vfs_handle_struct *handle,
 503                         files_struct *dirfsp,
 504                         const struct smb_filename *smb_fname,
 505                         mode_t mode,
 506                         SMB_DEV_T dev)
 507 {
 508         errno = ENOSYS;
 509         return -1;
 510 }
 511
 512 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 513                         TALLOC_CTX *ctx,
 514                         const struct smb_filename *smb_fname)
 515 {
 516         errno = ENOSYS;
 517         return NULL;
 518 }
 519
 520 static int skel_chflags(vfs_handle_struct *handle,
 521                         const struct smb_filename *smb_fname,
 522                         uint flags)
 523 {
 524         errno = ENOSYS;
 525         return -1;
 526 }
 527
 528 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 529                                           const SMB_STRUCT_STAT *sbuf)
 530 {
 531         struct file_id id;
 532         ZERO_STRUCT(id);
 533         errno = ENOSYS;
 534         return id;
 535 }
 536
 537 static uint64_t skel_fs_file_id(vfs_handle_struct *handle,
 538                                 const SMB_STRUCT_STAT *sbuf)
 539 {
 540         errno = ENOSYS;
 541         return 0;
 542 }
 543
 544 struct skel_offload_read_state {
 545         bool dummy;
 546 };
 547
 548 static struct tevent_req *skel_offload_read_send(
 549         TALLOC_CTX *mem_ctx,
 550         struct tevent_context *ev,
 551         struct vfs_handle_struct *handle,
 552         struct files_struct *fsp,
 553         uint32_t fsctl,
 554         uint32_t ttl,
 555         off_t offset,
 556         size_t to_copy)
 557 {
 558         struct tevent_req *req = NULL;
 559         struct skel_offload_read_state *state = NULL;
 560
 561         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 562         if (req == NULL) {
 563                 return NULL;
 564         }
 565
 566         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 567         return tevent_req_post(req, ev);
 568 }
 569
 570 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 571                                        struct vfs_handle_struct *handle,
 572                                        TALLOC_CTX *mem_ctx,
 573                                        DATA_BLOB *_token_blob)
 574 {
 575         NTSTATUS status;
 576
 577         if (tevent_req_is_nterror(req, &status)) {
 578                 tevent_req_received(req);
 579                 return status;
 580         }
 581         tevent_req_received(req);
 582
 583         return NT_STATUS_OK;
 584 }
 585
 586 struct skel_cc_state {
 587         uint64_t unused;
 588 };
 589 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 590                                                TALLOC_CTX *mem_ctx,
 591                                                struct tevent_context *ev,
 592                                                uint32_t fsctl,
 593                                                DATA_BLOB *token,
 594                                                off_t transfer_offset,
 595                                                struct files_struct *dest_fsp,
 596                                                off_t dest_off,
 597                                                off_t num)
 598 {
 599         struct tevent_req *req;
 600         struct skel_cc_state *cc_state;
 601
 602         req = tevent_req_create(mem_ctx, &cc_state, struct skel_cc_state);
 603         if (req == NULL) {
 604                 return NULL;
 605         }
 606
 607         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 608         return tevent_req_post(req, ev);
 609 }
 610
 611 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 612                                      struct tevent_req *req,
 613                                      off_t *copied)
 614 {
 615         NTSTATUS status;
 616
 617         if (tevent_req_is_nterror(req, &status)) {
 618                 tevent_req_received(req);
 619                 return status;
 620         }
 621         tevent_req_received(req);
 622
 623         return NT_STATUS_OK;
 624 }
 625
 626 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 627                                      TALLOC_CTX *mem_ctx,
 628                                      struct files_struct *fsp,
 629                                      struct smb_filename *smb_fname,
 630                                      uint16_t *_compression_fmt)
 631 {
 632         return NT_STATUS_INVALID_DEVICE_REQUEST;
 633 }
 634
 635 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 636                                      TALLOC_CTX *mem_ctx,
 637                                      struct files_struct *fsp,
 638                                      uint16_t compression_fmt)
 639 {
 640         return NT_STATUS_INVALID_DEVICE_REQUEST;
 641 }
 642
 643 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 644                                 struct files_struct *fsp,
 645                                 const struct smb_filename *smb_fname,
 646                                 TALLOC_CTX *mem_ctx,
 647                                 unsigned int *num_streams,
 648                                 struct stream_struct **streams)
 649 {
 650         return NT_STATUS_NOT_IMPLEMENTED;
 651 }
 652
 653 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 654                                   const char *path,
 655                                   const char *name,
 656                                   TALLOC_CTX *mem_ctx, char **found_name)
 657 {
 658         errno = ENOSYS;
 659         return -1;
 660 }
 661
 662 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 663                                 const struct smb_filename *smb_fname)
 664 {
 665         errno = ENOSYS;
 666         return NULL;
 667 }
 668
 669 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 670                                       struct byte_range_lock *br_lck,
 671                                       struct lock_struct *plock)
 672 {
 673         return NT_STATUS_NOT_IMPLEMENTED;
 674 }
 675
 676 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 677                                     struct byte_range_lock *br_lck,
 678                                     const struct lock_struct *plock)
 679 {
 680         errno = ENOSYS;
 681         return false;
 682 }
 683
 684 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 685                                    struct files_struct *fsp,
 686                                    struct lock_struct *plock)
 687 {
 688         errno = ENOSYS;
 689         return false;
 690 }
 691
 692 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 693                                     const char *mapped_name,
 694                                     enum vfs_translate_direction direction,
 695                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 696 {
 697         return NT_STATUS_NOT_IMPLEMENTED;
 698 }
 699
 700 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 701                            struct files_struct *fsp,
 702                            TALLOC_CTX *ctx,
 703                            uint32_t function,
 704                            uint16_t req_flags,  /* Needed for UNICODE ... */
 705                            const uint8_t *_in_data,
 706                            uint32_t in_len,
 707                            uint8_t **_out_data,
 708                            uint32_t max_out_len, uint32_t *out_len)
 709 {
 710         return NT_STATUS_NOT_IMPLEMENTED;
 711 }
 712
 713 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 714                                   const struct smb_filename *fname,
 715                                   TALLOC_CTX *mem_ctx,
 716                                   struct readdir_attr_data **pattr_data)
 717 {
 718         return NT_STATUS_NOT_IMPLEMENTED;
 719 }
 720
 721 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 722                                 struct smb_filename *smb_fname,
 723                                 uint32_t *dosmode)
 724 {
 725         return NT_STATUS_NOT_IMPLEMENTED;
 726 }
 727
 728 struct skel_get_dos_attributes_state {
 729         struct vfs_aio_state aio_state;
 730         uint32_t dosmode;
 731 };
 732
 733 static struct tevent_req *skel_get_dos_attributes_send(
 734                         TALLOC_CTX *mem_ctx,
 735                         struct tevent_context *ev,
 736                         struct vfs_handle_struct *handle,
 737                         files_struct *dir_fsp,
 738                         struct smb_filename *smb_fname)
 739 {
 740         struct tevent_req *req = NULL;
 741         struct skel_get_dos_attributes_state *state = NULL;
 742
 743         req = tevent_req_create(mem_ctx, &state,
 744                                 struct skel_get_dos_attributes_state);
 745         if (req == NULL) {
 746                 return NULL;
 747         }
 748
 749         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 750         return tevent_req_post(req, ev);
 751 }
 752
 753 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
 754                                              struct vfs_aio_state *aio_state,
 755                                              uint32_t *dosmode)
 756 {
 757         struct skel_get_dos_attributes_state *state =
 758                 tevent_req_data(req,
 759                 struct skel_get_dos_attributes_state);
 760         NTSTATUS status;
 761
 762         if (tevent_req_is_nterror(req, &status)) {
 763                 tevent_req_received(req);
 764                 return status;
 765         }
 766
 767         *aio_state = state->aio_state;
 768         *dosmode = state->dosmode;
 769         tevent_req_received(req);
 770         return NT_STATUS_OK;
 771 }
 772
 773 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
 774                                 struct files_struct *fsp,
 775                                 uint32_t *dosmode)
 776 {
 777         return NT_STATUS_NOT_IMPLEMENTED;
 778 }
 779
 780 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
 781                                 const struct smb_filename *smb_fname,
 782                                 uint32_t dosmode)
 783 {
 784         return NT_STATUS_NOT_IMPLEMENTED;
 785 }
 786
 787 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
 788                                 struct files_struct *fsp,
 789                                 uint32_t dosmode)
 790 {
 791         return NT_STATUS_NOT_IMPLEMENTED;
 792 }
 793
 794 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 795                                  uint32_t security_info,
 796                                  TALLOC_CTX *mem_ctx,
 797                                  struct security_descriptor **ppdesc)
 798 {
 799         return NT_STATUS_NOT_IMPLEMENTED;
 800 }
 801
 802 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
 803                                 const struct smb_filename *smb_fname,
 804                                 uint32_t security_info,
 805                                 TALLOC_CTX *mem_ctx,
 806                                 struct security_descriptor **ppdesc)
 807 {
 808         return NT_STATUS_NOT_IMPLEMENTED;
 809 }
 810
 811 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 812                                  uint32_t security_info_sent,
 813                                  const struct security_descriptor *psd)
 814 {
 815         return NT_STATUS_NOT_IMPLEMENTED;
 816 }
 817
 818 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
 819                                        const struct smb_filename *smb_fname,
 820                                        SMB_ACL_TYPE_T type,
 821                                        TALLOC_CTX *mem_ctx)
 822 {
 823         errno = ENOSYS;
 824         return (SMB_ACL_T) NULL;
 825 }
 826
 827 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
 828                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
 829 {
 830         errno = ENOSYS;
 831         return (SMB_ACL_T) NULL;
 832 }
 833
 834 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
 835                                 const struct smb_filename *smb_fname,
 836                                 TALLOC_CTX *mem_ctx,
 837                                 char **blob_description,
 838                                 DATA_BLOB *blob)
 839 {
 840         errno = ENOSYS;
 841         return -1;
 842 }
 843
 844 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
 845                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
 846                                     char **blob_description, DATA_BLOB *blob)
 847 {
 848         errno = ENOSYS;
 849         return -1;
 850 }
 851
 852 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
 853                                 const struct smb_filename *smb_fname,
 854                                 SMB_ACL_TYPE_T acltype,
 855                                 SMB_ACL_T theacl)
 856 {
 857         errno = ENOSYS;
 858         return -1;
 859 }
 860
 861 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
 862                                SMB_ACL_T theacl)
 863 {
 864         errno = ENOSYS;
 865         return -1;
 866 }
 867
 868 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
 869                                         const struct smb_filename *smb_fname)
 870 {
 871         errno = ENOSYS;
 872         return -1;
 873 }
 874
 875 static ssize_t skel_getxattr(vfs_handle_struct *handle,
 876                                 const struct smb_filename *smb_fname,
 877                                 const char *name,
 878                                 void *value,
 879                                 size_t size)
 880 {
 881         errno = ENOSYS;
 882         return -1;
 883 }
 884
 885 struct skel_getxattrat_state {
 886         struct vfs_aio_state aio_state;
 887         ssize_t xattr_size;
 888         uint8_t *xattr_value;
 889 };
 890
 891 static struct tevent_req *skel_getxattrat_send(
 892                         TALLOC_CTX *mem_ctx,
 893                         struct tevent_context *ev,
 894                         struct vfs_handle_struct *handle,
 895                         files_struct *dir_fsp,
 896                         const struct smb_filename *smb_fname,
 897                         const char *xattr_name,
 898                         size_t alloc_hint)
 899 {
 900         struct tevent_req *req = NULL;
 901         struct skel_getxattrat_state *state = NULL;
 902
 903         req = tevent_req_create(mem_ctx, &state,
 904                                 struct skel_getxattrat_state);
 905         if (req == NULL) {
 906                 return NULL;
 907         }
 908
 909         tevent_req_error(req, ENOSYS);
 910         return tevent_req_post(req, ev);
 911 }
 912
 913 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
 914                                     struct vfs_aio_state *aio_state,
 915                                     TALLOC_CTX *mem_ctx,
 916                                     uint8_t **xattr_value)
 917 {
 918         struct skel_getxattrat_state *state = tevent_req_data(
 919                 req, struct skel_getxattrat_state);
 920         ssize_t xattr_size;
 921
 922         if (tevent_req_is_unix_error(req, &aio_state->error)) {
 923                 tevent_req_received(req);
 924                 return -1;
 925         }
 926
 927         *aio_state = state->aio_state;
 928         xattr_size = state->xattr_size;
 929         if (xattr_value != NULL) {
 930                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
 931         }
 932
 933         tevent_req_received(req);
 934         return xattr_size;
 935 }
 936
 937 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
 938                               struct files_struct *fsp, const char *name,
 939                               void *value, size_t size)
 940 {
 941         errno = ENOSYS;
 942         return -1;
 943 }
 944
 945 static ssize_t skel_listxattr(vfs_handle_struct *handle,
 946                                 const struct smb_filename *smb_fname,
 947                                 char *list,
 948                                 size_t size)
 949 {
 950         errno = ENOSYS;
 951         return -1;
 952 }
 953
 954 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
 955                                struct files_struct *fsp, char *list,
 956                                size_t size)
 957 {
 958         errno = ENOSYS;
 959         return -1;
 960 }
 961
 962 static int skel_removexattr(vfs_handle_struct *handle,
 963                         const struct smb_filename *smb_fname,
 964                         const char *name)
 965 {
 966         errno = ENOSYS;
 967         return -1;
 968 }
 969
 970 static int skel_fremovexattr(vfs_handle_struct *handle,
 971                              struct files_struct *fsp, const char *name)
 972 {
 973         errno = ENOSYS;
 974         return -1;
 975 }
 976
 977 static int skel_setxattr(vfs_handle_struct *handle,
 978                         const struct smb_filename *smb_fname,
 979                         const char *name,
 980                         const void *value,
 981                         size_t size,
 982                         int flags)
 983 {
 984         errno = ENOSYS;
 985         return -1;
 986 }
 987
 988 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
 989                           const char *name, const void *value, size_t size,
 990                           int flags)
 991 {
 992         errno = ENOSYS;
 993         return -1;
 994 }
 995
 996 static bool skel_aio_force(struct vfs_handle_struct *handle,
 997                            struct files_struct *fsp)
 998 {
 999         errno = ENOSYS;
1000         return false;
1001 }
1002
1003 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
1004                                 struct smb_filename *file,
1005                                 struct security_acl *sacl,
1006                                 uint32_t access_requested,
1007                                 uint32_t access_denied)
1008 {
1009         return NT_STATUS_NOT_IMPLEMENTED;
1010 }
1011
1012 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
1013                                     struct files_struct *fsp,
1014                                     TALLOC_CTX *mem_ctx,
1015                                     DATA_BLOB *cookie)
1016 {
1017         return NT_STATUS_NOT_IMPLEMENTED;
1018 }
1019
1020 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1021                                         struct files_struct *fsp,
1022                                         const DATA_BLOB old_cookie,
1023                                         TALLOC_CTX *mem_ctx,
1024                                         DATA_BLOB *new_cookie)
1025 {
1026         return NT_STATUS_NOT_IMPLEMENTED;
1027 }
1028
1029 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1030                                        struct smb_request *smb1req,
1031                                        struct smbXsrv_open *op,
1032                                        const DATA_BLOB old_cookie,
1033                                        TALLOC_CTX *mem_ctx,
1034                                        struct files_struct **fsp,
1035                                        DATA_BLOB *new_cookie)
1036 {
1037         return NT_STATUS_NOT_IMPLEMENTED;
1038 }
1039
1040 /* VFS operations structure */
1041
1042 static struct vfs_fn_pointers skel_opaque_fns = {
1043         /* Disk operations */
1044
1045         .connect_fn = skel_connect,
1046         .disconnect_fn = skel_disconnect,
1047         .disk_free_fn = skel_disk_free,
1048         .get_quota_fn = skel_get_quota,
1049         .set_quota_fn = skel_set_quota,
1050         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1051         .statvfs_fn = skel_statvfs,
1052         .fs_capabilities_fn = skel_fs_capabilities,
1053         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1054         .create_dfs_pathat_fn = skel_create_dfs_pathat,
1055         .read_dfs_pathat_fn = skel_read_dfs_pathat,
1056         .snap_check_path_fn = skel_snap_check_path,
1057         .snap_create_fn = skel_snap_create,
1058         .snap_delete_fn = skel_snap_delete,
1059
1060         /* Directory operations */
1061
1062         .opendir_fn = skel_opendir,
1063         .fdopendir_fn = skel_fdopendir,
1064         .readdir_fn = skel_readdir,
1065         .seekdir_fn = skel_seekdir,
1066         .telldir_fn = skel_telldir,
1067         .rewind_dir_fn = skel_rewind_dir,
1068         .mkdirat_fn = skel_mkdirat,
1069         .closedir_fn = skel_closedir,
1070
1071         /* File operations */
1072
1073         .open_fn = skel_open,
1074         .create_file_fn = skel_create_file,
1075         .close_fn = skel_close_fn,
1076         .pread_fn = skel_pread,
1077         .pread_send_fn = skel_pread_send,
1078         .pread_recv_fn = skel_pread_recv,
1079         .pwrite_fn = skel_pwrite,
1080         .pwrite_send_fn = skel_pwrite_send,
1081         .pwrite_recv_fn = skel_pwrite_recv,
1082         .lseek_fn = skel_lseek,
1083         .sendfile_fn = skel_sendfile,
1084         .recvfile_fn = skel_recvfile,
1085         .renameat_fn = skel_renameat,
1086         .fsync_send_fn = skel_fsync_send,
1087         .fsync_recv_fn = skel_fsync_recv,
1088         .stat_fn = skel_stat,
1089         .fstat_fn = skel_fstat,
1090         .lstat_fn = skel_lstat,
1091         .get_alloc_size_fn = skel_get_alloc_size,
1092         .unlinkat_fn = skel_unlinkat,
1093         .chmod_fn = skel_chmod,
1094         .fchmod_fn = skel_fchmod,
1095         .fchown_fn = skel_fchown,
1096         .lchown_fn = skel_lchown,
1097         .chdir_fn = skel_chdir,
1098         .getwd_fn = skel_getwd,
1099         .ntimes_fn = skel_ntimes,
1100         .ftruncate_fn = skel_ftruncate,
1101         .fallocate_fn = skel_fallocate,
1102         .lock_fn = skel_lock,
1103         .kernel_flock_fn = skel_kernel_flock,
1104         .fcntl_fn = skel_fcntl,
1105         .linux_setlease_fn = skel_linux_setlease,
1106         .getlock_fn = skel_getlock,
1107         .symlinkat_fn = skel_symlinkat,
1108         .readlinkat_fn = skel_vfs_readlinkat,
1109         .linkat_fn = skel_linkat,
1110         .mknodat_fn = skel_mknodat,
1111         .realpath_fn = skel_realpath,
1112         .chflags_fn = skel_chflags,
1113         .file_id_create_fn = skel_file_id_create,
1114         .fs_file_id_fn = skel_fs_file_id,
1115         .offload_read_send_fn = skel_offload_read_send,
1116         .offload_read_recv_fn = skel_offload_read_recv,
1117         .offload_write_send_fn = skel_offload_write_send,
1118         .offload_write_recv_fn = skel_offload_write_recv,
1119         .get_compression_fn = skel_get_compression,
1120         .set_compression_fn = skel_set_compression,
1121
1122         .streaminfo_fn = skel_streaminfo,
1123         .get_real_filename_fn = skel_get_real_filename,
1124         .connectpath_fn = skel_connectpath,
1125         .brl_lock_windows_fn = skel_brl_lock_windows,
1126         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1127         .strict_lock_check_fn = skel_strict_lock_check,
1128         .translate_name_fn = skel_translate_name,
1129         .fsctl_fn = skel_fsctl,
1130         .readdir_attr_fn = skel_readdir_attr,
1131         .audit_file_fn = skel_audit_file,
1132
1133         /* DOS attributes. */
1134         .get_dos_attributes_fn = skel_get_dos_attributes,
1135         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1136         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1137         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1138         .set_dos_attributes_fn = skel_set_dos_attributes,
1139         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1140
1141         /* NT ACL operations. */
1142
1143         .fget_nt_acl_fn = skel_fget_nt_acl,
1144         .get_nt_acl_fn = skel_get_nt_acl,
1145         .fset_nt_acl_fn = skel_fset_nt_acl,
1146
1147         /* POSIX ACL operations. */
1148
1149         .sys_acl_get_file_fn = skel_sys_acl_get_file,
1150         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1151         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
1152         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1153         .sys_acl_set_file_fn = skel_sys_acl_set_file,
1154         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1155         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1156
1157         /* EA operations. */
1158         .getxattr_fn = skel_getxattr,
1159         .getxattrat_send_fn = skel_getxattrat_send,
1160         .getxattrat_recv_fn = skel_getxattrat_recv,
1161         .fgetxattr_fn = skel_fgetxattr,
1162         .listxattr_fn = skel_listxattr,
1163         .flistxattr_fn = skel_flistxattr,
1164         .removexattr_fn = skel_removexattr,
1165         .fremovexattr_fn = skel_fremovexattr,
1166         .setxattr_fn = skel_setxattr,
1167         .fsetxattr_fn = skel_fsetxattr,
1168
1169         /* aio operations */
1170         .aio_force_fn = skel_aio_force,
1171
1172         /* durable handle operations */
1173         .durable_cookie_fn = skel_durable_cookie,
1174         .durable_disconnect_fn = skel_durable_disconnect,
1175         .durable_reconnect_fn = skel_durable_reconnect,
1176 };
1177
1178 static_decl_vfs;
1179 NTSTATUS vfs_skel_opaque_init(TALLOC_CTX *ctx)
1180 {
1181         /*
1182          * smb_vfs_assert_all_fns() makes sure every
1183          * call is implemented.
1184          *
1185          * An opaque module requires this!
1186          */
1187         smb_vfs_assert_all_fns(&skel_opaque_fns, "skel_opaque");
1188         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_opaque",
1189                                 &skel_opaque_fns);
1190 }