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