examples/VFS/skel_opaque.c

   1 /*
   2  * Skeleton VFS module.  Implements dummy versions of all VFS
   3  * functions.
   4  *
   5  * Copyright (C) Tim Potter, 1999-2000
   6  * Copyright (C) Alexander Bokovoy, 2002
   7  * Copyright (C) Stefan (metze) Metzmacher, 2003
   8  * Copyright (C) Jeremy Allison 2009
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 3 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #include "../source3/include/includes.h"
  25 #include "lib/util/tevent_unix.h"
  26 #include "lib/util/tevent_ntstatus.h"
  27
  28 /* PLEASE,PLEASE READ THE VFS MODULES CHAPTER OF THE
  29    SAMBA DEVELOPERS GUIDE!!!!!!
  30  */
  31
  32 /* If you take this file as template for your module
  33  * you must re-implement every function.
  34  */
  35
  36 static int skel_connect(vfs_handle_struct *handle, const char *service,
  37                         const char *user)
  38 {
  39         errno = ENOSYS;
  40         return -1;
  41 }
  42
  43 static void skel_disconnect(vfs_handle_struct *handle)
  44 {
  45         ;
  46 }
  47
  48 static uint64_t skel_disk_free(vfs_handle_struct *handle,
  49                                 const struct smb_filename *smb_fname,
  50                                 uint64_t *bsize,
  51                                 uint64_t *dfree,
  52                                 uint64_t *dsize)
  53 {
  54         *bsize = 0;
  55         *dfree = 0;
  56         *dsize = 0;
  57         return 0;
  58 }
  59
  60 static int skel_get_quota(vfs_handle_struct *handle,
  61                                 const struct smb_filename *smb_fname,
  62                                 enum SMB_QUOTA_TYPE qtype,
  63                                 unid_t id,
  64                                 SMB_DISK_QUOTA *dq)
  65 {
  66         errno = ENOSYS;
  67         return -1;
  68 }
  69
  70 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  71                           unid_t id, SMB_DISK_QUOTA *dq)
  72 {
  73         errno = ENOSYS;
  74         return -1;
  75 }
  76
  77 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
  78                                      files_struct *fsp,
  79                                      struct shadow_copy_data *shadow_copy_data,
  80                                      bool labels)
  81 {
  82         errno = ENOSYS;
  83         return -1;
  84 }
  85
  86 static int skel_statvfs(struct vfs_handle_struct *handle,
  87                                 const struct smb_filename *smb_fname,
  88                                 struct vfs_statvfs_struct *statbuf)
  89 {
  90         errno = ENOSYS;
  91         return -1;
  92 }
  93
  94 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
  95                                      enum timestamp_set_resolution *p_ts_res)
  96 {
  97         return 0;
  98 }
  99
 100 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
 101                                        struct dfs_GetDFSReferral *r)
 102 {
 103         return NT_STATUS_NOT_IMPLEMENTED;
 104 }
 105
 106 static NTSTATUS skel_create_dfs_pathat(struct vfs_handle_struct *handle,
 107                                 struct files_struct *dirfsp,
 108                                 const struct smb_filename *smb_fname,
 109                                 const struct referral *reflist,
 110                                 size_t referral_count)
 111 {
 112         return NT_STATUS_NOT_IMPLEMENTED;
 113 }
 114
 115 static NTSTATUS skel_read_dfs_pathat(struct vfs_handle_struct *handle,
 116                                 TALLOC_CTX *mem_ctx,
 117                                 struct files_struct *dirfsp,
 118                                 struct smb_filename *smb_fname,
 119                                 struct referral **ppreflist,
 120                                 size_t *preferral_count)
 121 {
 122         return NT_STATUS_NOT_IMPLEMENTED;
 123 }
 124
 125 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
 126                                      TALLOC_CTX *mem_ctx,
 127                                      const char *service_path,
 128                                      char **base_volume)
 129 {
 130         return NT_STATUS_NOT_SUPPORTED;
 131 }
 132
 133 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
 134                                  TALLOC_CTX *mem_ctx,
 135                                  const char *base_volume,
 136                                  time_t *tstamp,
 137                                  bool rw,
 138                                  char **base_path,
 139                                  char **snap_path)
 140 {
 141         return NT_STATUS_NOT_SUPPORTED;
 142 }
 143
 144 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
 145                                  TALLOC_CTX *mem_ctx,
 146                                  char *base_path,
 147                                  char *snap_path)
 148 {
 149         return NT_STATUS_NOT_SUPPORTED;
 150 }
 151
 152 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 153                            const char *mask, uint32_t attr)
 154 {
 155         return NULL;
 156 }
 157
 158 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 159                                    struct files_struct *dirfsp,
 160                                    DIR *dirp,
 161                                    SMB_STRUCT_STAT *sbuf)
 162 {
 163         return NULL;
 164 }
 165
 166 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 167 {
 168         ;
 169 }
 170
 171 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 172 {
 173         return (long)-1;
 174 }
 175
 176 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 177 {
 178         ;
 179 }
 180
 181 static int skel_mkdirat(vfs_handle_struct *handle,
 182                 struct files_struct *dirfsp,
 183                 const struct smb_filename *smb_fname,
 184                 mode_t mode)
 185 {
 186         errno = ENOSYS;
 187         return -1;
 188 }
 189
 190 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 191 {
 192         errno = ENOSYS;
 193         return -1;
 194 }
 195
 196 static int skel_openat(struct vfs_handle_struct *handle,
 197                        const struct files_struct *dirfsp,
 198                        const struct smb_filename *smb_fname,
 199                        struct files_struct *fsp,
 200                        const struct vfs_open_how *how)
 201 {
 202         if (how->resolve != 0) {
 203                 errno = ENOSYS;
 204                 return -1;
 205         }
 206
 207         errno = ENOSYS;
 208         return -1;
 209 }
 210
 211 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 212                                  struct smb_request *req,
 213                                  struct files_struct *dirfsp,
 214                                  struct smb_filename *smb_fname,
 215                                  uint32_t access_mask,
 216                                  uint32_t share_access,
 217                                  uint32_t create_disposition,
 218                                  uint32_t create_options,
 219                                  uint32_t file_attributes,
 220                                  uint32_t oplock_request,
 221                                  const struct smb2_lease *lease,
 222                                  uint64_t allocation_size,
 223                                  uint32_t private_flags,
 224                                  struct security_descriptor *sd,
 225                                  struct ea_list *ea_list,
 226                                  files_struct **result, int *pinfo,
 227                                  const struct smb2_create_blobs *in_context_blobs,
 228                                  struct smb2_create_blobs *out_context_blobs)
 229 {
 230         return NT_STATUS_NOT_IMPLEMENTED;
 231 }
 232
 233 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 234 {
 235         errno = ENOSYS;
 236         return -1;
 237 }
 238
 239 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 240                           void *data, size_t n, off_t offset)
 241 {
 242         errno = ENOSYS;
 243         return -1;
 244 }
 245
 246 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 247                                           TALLOC_CTX *mem_ctx,
 248                                           struct tevent_context *ev,
 249                                           struct files_struct *fsp,
 250                                           void *data, size_t n, off_t offset)
 251 {
 252         return NULL;
 253 }
 254
 255 static ssize_t skel_pread_recv(struct tevent_req *req,
 256                                struct vfs_aio_state *vfs_aio_state)
 257 {
 258         vfs_aio_state->error = ENOSYS;
 259         return -1;
 260 }
 261
 262 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 263                            const void *data, size_t n, off_t offset)
 264 {
 265         errno = ENOSYS;
 266         return -1;
 267 }
 268
 269 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 270                                            TALLOC_CTX *mem_ctx,
 271                                            struct tevent_context *ev,
 272                                            struct files_struct *fsp,
 273                                            const void *data,
 274                                            size_t n, off_t offset)
 275 {
 276         return NULL;
 277 }
 278
 279 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 280                                 struct vfs_aio_state *vfs_aio_state)
 281 {
 282         vfs_aio_state->error = ENOSYS;
 283         return -1;
 284 }
 285
 286 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 287                         off_t offset, int whence)
 288 {
 289         errno = ENOSYS;
 290         return (off_t) - 1;
 291 }
 292
 293 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 294                              files_struct *fromfsp, const DATA_BLOB *hdr,
 295                              off_t offset, size_t n)
 296 {
 297         errno = ENOSYS;
 298         return -1;
 299 }
 300
 301 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 302                              files_struct *tofsp, off_t offset, size_t n)
 303 {
 304         errno = ENOSYS;
 305         return -1;
 306 }
 307
 308 static int skel_renameat(vfs_handle_struct *handle,
 309                        files_struct *srcfsp,
 310                        const struct smb_filename *smb_fname_src,
 311                        files_struct *dstfsp,
 312                        const struct smb_filename *smb_fname_dst)
 313 {
 314         errno = ENOSYS;
 315         return -1;
 316 }
 317
 318 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 319                                           TALLOC_CTX *mem_ctx,
 320                                           struct tevent_context *ev,
 321                                           struct files_struct *fsp)
 322 {
 323         return NULL;
 324 }
 325
 326 static int skel_fsync_recv(struct tevent_req *req,
 327                            struct vfs_aio_state *vfs_aio_state)
 328 {
 329         vfs_aio_state->error = ENOSYS;
 330         return -1;
 331 }
 332
 333 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 334 {
 335         errno = ENOSYS;
 336         return -1;
 337 }
 338
 339 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 340                       SMB_STRUCT_STAT *sbuf)
 341 {
 342         errno = ENOSYS;
 343         return -1;
 344 }
 345
 346 static int skel_lstat(vfs_handle_struct *handle,
 347                       struct smb_filename *smb_fname)
 348 {
 349         errno = ENOSYS;
 350         return -1;
 351 }
 352
 353 static int skel_fstatat(
 354         struct vfs_handle_struct *handle,
 355         const struct files_struct *dirfsp,
 356         const struct smb_filename *smb_fname,
 357         SMB_STRUCT_STAT *sbuf,
 358         int flags)
 359 {
 360         errno = ENOSYS;
 361         return -1;
 362 }
 363
 364 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 365                                     struct files_struct *fsp,
 366                                     const SMB_STRUCT_STAT *sbuf)
 367 {
 368         errno = ENOSYS;
 369         return -1;
 370 }
 371
 372 static int skel_unlinkat(vfs_handle_struct *handle,
 373                         struct files_struct *dirfsp,
 374                         const struct smb_filename *smb_fname,
 375                         int flags)
 376 {
 377         errno = ENOSYS;
 378         return -1;
 379 }
 380
 381 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 382                        mode_t mode)
 383 {
 384         errno = ENOSYS;
 385         return -1;
 386 }
 387
 388 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 389                        uid_t uid, gid_t gid)
 390 {
 391         errno = ENOSYS;
 392         return -1;
 393 }
 394
 395 static int skel_lchown(vfs_handle_struct *handle,
 396                         const struct smb_filename *smb_fname,
 397                         uid_t uid,
 398                         gid_t gid)
 399 {
 400         errno = ENOSYS;
 401         return -1;
 402 }
 403
 404 static int skel_chdir(vfs_handle_struct *handle,
 405                         const struct smb_filename *smb_fname)
 406 {
 407         errno = ENOSYS;
 408         return -1;
 409 }
 410
 411 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 412                                 TALLOC_CTX *ctx)
 413 {
 414         errno = ENOSYS;
 415         return NULL;
 416 }
 417
 418 static int skel_fntimes(vfs_handle_struct *handle,
 419                         files_struct *fsp,
 420                         struct smb_file_time *ft)
 421 {
 422         errno = ENOSYS;
 423         return -1;
 424 }
 425
 426 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 427                           off_t offset)
 428 {
 429         errno = ENOSYS;
 430         return -1;
 431 }
 432
 433 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 434                           uint32_t mode, off_t offset, off_t len)
 435 {
 436         errno = ENOSYS;
 437         return -1;
 438 }
 439
 440 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 441                       off_t offset, off_t count, int type)
 442 {
 443         errno = ENOSYS;
 444         return false;
 445 }
 446
 447 static int skel_filesystem_sharemode(struct vfs_handle_struct *handle,
 448                                      struct files_struct *fsp,
 449                                      uint32_t share_mode,
 450                                      uint32_t access_mask)
 451 {
 452         errno = ENOSYS;
 453         return -1;
 454 }
 455
 456 static int skel_fcntl(struct vfs_handle_struct *handle,
 457                       struct files_struct *fsp, int cmd, va_list cmd_arg)
 458 {
 459         errno = ENOSYS;
 460         return -1;
 461 }
 462
 463 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 464                                struct files_struct *fsp, int leasetype)
 465 {
 466         errno = ENOSYS;
 467         return -1;
 468 }
 469
 470 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 471                          off_t *poffset, off_t *pcount, int *ptype,
 472                          pid_t *ppid)
 473 {
 474         errno = ENOSYS;
 475         return false;
 476 }
 477
 478 static int skel_symlinkat(vfs_handle_struct *handle,
 479                         const struct smb_filename *link_contents,
 480                         struct files_struct *dirfsp,
 481                         const struct smb_filename *new_smb_fname)
 482 {
 483         errno = ENOSYS;
 484         return -1;
 485 }
 486
 487 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
 488                         const struct files_struct *dirfsp,
 489                         const struct smb_filename *smb_fname,
 490                         char *buf,
 491                         size_t bufsiz)
 492 {
 493         errno = ENOSYS;
 494         return -1;
 495 }
 496
 497 static int skel_linkat(vfs_handle_struct *handle,
 498                         files_struct *srcfsp,
 499                         const struct smb_filename *old_smb_fname,
 500                         files_struct *dstfsp,
 501                         const struct smb_filename *new_smb_fname,
 502                         int flags)
 503 {
 504         errno = ENOSYS;
 505         return -1;
 506 }
 507
 508 static int skel_mknodat(vfs_handle_struct *handle,
 509                         files_struct *dirfsp,
 510                         const struct smb_filename *smb_fname,
 511                         mode_t mode,
 512                         SMB_DEV_T dev)
 513 {
 514         errno = ENOSYS;
 515         return -1;
 516 }
 517
 518 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 519                         TALLOC_CTX *ctx,
 520                         const struct smb_filename *smb_fname)
 521 {
 522         errno = ENOSYS;
 523         return NULL;
 524 }
 525
 526 static int skel_fchflags(vfs_handle_struct *handle,
 527                         struct files_struct *fsp,
 528                         uint flags)
 529 {
 530         errno = ENOSYS;
 531         return -1;
 532 }
 533
 534 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 535                                           const SMB_STRUCT_STAT *sbuf)
 536 {
 537         struct file_id id;
 538         ZERO_STRUCT(id);
 539         errno = ENOSYS;
 540         return id;
 541 }
 542
 543 static uint64_t skel_fs_file_id(vfs_handle_struct *handle,
 544                                 const SMB_STRUCT_STAT *sbuf)
 545 {
 546         errno = ENOSYS;
 547         return 0;
 548 }
 549
 550 struct skel_offload_read_state {
 551         bool dummy;
 552 };
 553
 554 static struct tevent_req *skel_offload_read_send(
 555         TALLOC_CTX *mem_ctx,
 556         struct tevent_context *ev,
 557         struct vfs_handle_struct *handle,
 558         struct files_struct *fsp,
 559         uint32_t fsctl,
 560         uint32_t ttl,
 561         off_t offset,
 562         size_t to_copy)
 563 {
 564         struct tevent_req *req = NULL;
 565         struct skel_offload_read_state *state = NULL;
 566
 567         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 568         if (req == NULL) {
 569                 return NULL;
 570         }
 571
 572         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 573         return tevent_req_post(req, ev);
 574 }
 575
 576 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 577                                        struct vfs_handle_struct *handle,
 578                                        TALLOC_CTX *mem_ctx,
 579                                        uint32_t *flags,
 580                                        uint64_t *xferlen,
 581                                        DATA_BLOB *_token_blob)
 582 {
 583         NTSTATUS status;
 584
 585         if (tevent_req_is_nterror(req, &status)) {
 586                 tevent_req_received(req);
 587                 return status;
 588         }
 589         tevent_req_received(req);
 590
 591         return NT_STATUS_OK;
 592 }
 593
 594 struct skel_cc_state {
 595         uint64_t unused;
 596 };
 597 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 598                                                TALLOC_CTX *mem_ctx,
 599                                                struct tevent_context *ev,
 600                                                uint32_t fsctl,
 601                                                DATA_BLOB *token,
 602                                                off_t transfer_offset,
 603                                                struct files_struct *dest_fsp,
 604                                                off_t dest_off,
 605                                                off_t num)
 606 {
 607         struct tevent_req *req;
 608         struct skel_cc_state *cc_state;
 609
 610         req = tevent_req_create(mem_ctx, &cc_state, struct skel_cc_state);
 611         if (req == NULL) {
 612                 return NULL;
 613         }
 614
 615         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 616         return tevent_req_post(req, ev);
 617 }
 618
 619 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 620                                      struct tevent_req *req,
 621                                      off_t *copied)
 622 {
 623         NTSTATUS status;
 624
 625         if (tevent_req_is_nterror(req, &status)) {
 626                 tevent_req_received(req);
 627                 return status;
 628         }
 629         tevent_req_received(req);
 630
 631         return NT_STATUS_OK;
 632 }
 633
 634 static NTSTATUS skel_fget_compression(struct vfs_handle_struct *handle,
 635                                      TALLOC_CTX *mem_ctx,
 636                                      struct files_struct *fsp,
 637                                      uint16_t *_compression_fmt)
 638 {
 639         return NT_STATUS_INVALID_DEVICE_REQUEST;
 640 }
 641
 642 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 643                                      TALLOC_CTX *mem_ctx,
 644                                      struct files_struct *fsp,
 645                                      uint16_t compression_fmt)
 646 {
 647         return NT_STATUS_INVALID_DEVICE_REQUEST;
 648 }
 649
 650 static NTSTATUS skel_fstreaminfo(struct vfs_handle_struct *handle,
 651                                  struct files_struct *fsp,
 652                                  TALLOC_CTX *mem_ctx,
 653                                  unsigned int *num_streams,
 654                                  struct stream_struct **streams)
 655 {
 656         return NT_STATUS_NOT_IMPLEMENTED;
 657 }
 658
 659 static NTSTATUS skel_get_real_filename_at(struct vfs_handle_struct *handle,
 660                                           struct files_struct *dirfsp,
 661                                           const char *name,
 662                                           TALLOC_CTX *mem_ctx,
 663                                           char **found_name)
 664 {
 665         return NT_STATUS_NOT_IMPLEMENTED;
 666 }
 667
 668 static const char *skel_connectpath(
 669         struct vfs_handle_struct *handle,
 670         const struct files_struct *dirfsp,
 671         const struct smb_filename *smb_fname)
 672 {
 673         errno = ENOSYS;
 674         return NULL;
 675 }
 676
 677 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 678                                       struct byte_range_lock *br_lck,
 679                                       struct lock_struct *plock)
 680 {
 681         return NT_STATUS_NOT_IMPLEMENTED;
 682 }
 683
 684 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 685                                     struct byte_range_lock *br_lck,
 686                                     const struct lock_struct *plock)
 687 {
 688         errno = ENOSYS;
 689         return false;
 690 }
 691
 692 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 693                                    struct files_struct *fsp,
 694                                    struct lock_struct *plock)
 695 {
 696         errno = ENOSYS;
 697         return false;
 698 }
 699
 700 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 701                                     const char *mapped_name,
 702                                     enum vfs_translate_direction direction,
 703                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 704 {
 705         return NT_STATUS_NOT_IMPLEMENTED;
 706 }
 707
 708 static NTSTATUS skel_parent_pathname(struct vfs_handle_struct *handle,
 709                                      TALLOC_CTX *mem_ctx,
 710                                      const struct smb_filename *smb_fname_in,
 711                                      struct smb_filename **parent_dir_out,
 712                                      struct smb_filename **atname_out)
 713 {
 714         return NT_STATUS_NOT_IMPLEMENTED;
 715 }
 716
 717 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 718                            struct files_struct *fsp,
 719                            TALLOC_CTX *ctx,
 720                            uint32_t function,
 721                            uint16_t req_flags,  /* Needed for UNICODE ... */
 722                            const uint8_t *_in_data,
 723                            uint32_t in_len,
 724                            uint8_t **_out_data,
 725                            uint32_t max_out_len, uint32_t *out_len)
 726 {
 727         return NT_STATUS_NOT_IMPLEMENTED;
 728 }
 729
 730 static NTSTATUS skel_freaddir_attr(struct vfs_handle_struct *handle,
 731                                    struct files_struct *fsp,
 732                                    TALLOC_CTX *mem_ctx,
 733                                    struct readdir_attr_data **pattr_data)
 734 {
 735         return NT_STATUS_NOT_IMPLEMENTED;
 736 }
 737
 738 struct skel_get_dos_attributes_state {
 739         struct vfs_aio_state aio_state;
 740         uint32_t dosmode;
 741 };
 742
 743 static struct tevent_req *skel_get_dos_attributes_send(
 744                         TALLOC_CTX *mem_ctx,
 745                         struct tevent_context *ev,
 746                         struct vfs_handle_struct *handle,
 747                         files_struct *dir_fsp,
 748                         struct smb_filename *smb_fname)
 749 {
 750         struct tevent_req *req = NULL;
 751         struct skel_get_dos_attributes_state *state = NULL;
 752
 753         req = tevent_req_create(mem_ctx, &state,
 754                                 struct skel_get_dos_attributes_state);
 755         if (req == NULL) {
 756                 return NULL;
 757         }
 758
 759         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 760         return tevent_req_post(req, ev);
 761 }
 762
 763 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
 764                                              struct vfs_aio_state *aio_state,
 765                                              uint32_t *dosmode)
 766 {
 767         struct skel_get_dos_attributes_state *state =
 768                 tevent_req_data(req,
 769                 struct skel_get_dos_attributes_state);
 770         NTSTATUS status;
 771
 772         if (tevent_req_is_nterror(req, &status)) {
 773                 tevent_req_received(req);
 774                 return status;
 775         }
 776
 777         *aio_state = state->aio_state;
 778         *dosmode = state->dosmode;
 779         tevent_req_received(req);
 780         return NT_STATUS_OK;
 781 }
 782
 783 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
 784                                 struct files_struct *fsp,
 785                                 uint32_t *dosmode)
 786 {
 787         return NT_STATUS_NOT_IMPLEMENTED;
 788 }
 789
 790 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
 791                                 struct files_struct *fsp,
 792                                 uint32_t dosmode)
 793 {
 794         return NT_STATUS_NOT_IMPLEMENTED;
 795 }
 796
 797 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 798                                  uint32_t security_info,
 799                                  TALLOC_CTX *mem_ctx,
 800                                  struct security_descriptor **ppdesc)
 801 {
 802         return NT_STATUS_NOT_IMPLEMENTED;
 803 }
 804
 805 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 806                                  uint32_t security_info_sent,
 807                                  const struct security_descriptor *psd)
 808 {
 809         return NT_STATUS_NOT_IMPLEMENTED;
 810 }
 811
 812 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
 813                                      files_struct *fsp,
 814                                      SMB_ACL_TYPE_T type,
 815                                      TALLOC_CTX *mem_ctx)
 816 {
 817         errno = ENOSYS;
 818         return (SMB_ACL_T) NULL;
 819 }
 820
 821 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
 822                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
 823                                     char **blob_description, DATA_BLOB *blob)
 824 {
 825         errno = ENOSYS;
 826         return -1;
 827 }
 828
 829 static int skel_sys_acl_set_fd(vfs_handle_struct *handle,
 830                                struct files_struct *fsp,
 831                                SMB_ACL_TYPE_T type,
 832                                SMB_ACL_T theacl)
 833 {
 834         errno = ENOSYS;
 835         return -1;
 836 }
 837
 838 static int skel_sys_acl_delete_def_fd(vfs_handle_struct *handle,
 839                                         struct files_struct *fsp)
 840 {
 841         errno = ENOSYS;
 842         return -1;
 843 }
 844
 845 struct skel_getxattrat_state {
 846         struct vfs_aio_state aio_state;
 847         ssize_t xattr_size;
 848         uint8_t *xattr_value;
 849 };
 850
 851 static struct tevent_req *skel_getxattrat_send(
 852                         TALLOC_CTX *mem_ctx,
 853                         struct tevent_context *ev,
 854                         struct vfs_handle_struct *handle,
 855                         files_struct *dir_fsp,
 856                         const struct smb_filename *smb_fname,
 857                         const char *xattr_name,
 858                         size_t alloc_hint)
 859 {
 860         struct tevent_req *req = NULL;
 861         struct skel_getxattrat_state *state = NULL;
 862
 863         req = tevent_req_create(mem_ctx, &state,
 864                                 struct skel_getxattrat_state);
 865         if (req == NULL) {
 866                 return NULL;
 867         }
 868
 869         tevent_req_error(req, ENOSYS);
 870         return tevent_req_post(req, ev);
 871 }
 872
 873 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
 874                                     struct vfs_aio_state *aio_state,
 875                                     TALLOC_CTX *mem_ctx,
 876                                     uint8_t **xattr_value)
 877 {
 878         struct skel_getxattrat_state *state = tevent_req_data(
 879                 req, struct skel_getxattrat_state);
 880         ssize_t xattr_size;
 881
 882         if (tevent_req_is_unix_error(req, &aio_state->error)) {
 883                 tevent_req_received(req);
 884                 return -1;
 885         }
 886
 887         *aio_state = state->aio_state;
 888         xattr_size = state->xattr_size;
 889         if (xattr_value != NULL) {
 890                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
 891         }
 892
 893         tevent_req_received(req);
 894         return xattr_size;
 895 }
 896
 897 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
 898                               struct files_struct *fsp, const char *name,
 899                               void *value, size_t size)
 900 {
 901         errno = ENOSYS;
 902         return -1;
 903 }
 904
 905 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
 906                                struct files_struct *fsp, char *list,
 907                                size_t size)
 908 {
 909         errno = ENOSYS;
 910         return -1;
 911 }
 912
 913 static int skel_fremovexattr(vfs_handle_struct *handle,
 914                              struct files_struct *fsp, const char *name)
 915 {
 916         errno = ENOSYS;
 917         return -1;
 918 }
 919
 920 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
 921                           const char *name, const void *value, size_t size,
 922                           int flags)
 923 {
 924         errno = ENOSYS;
 925         return -1;
 926 }
 927
 928 static bool skel_aio_force(struct vfs_handle_struct *handle,
 929                            struct files_struct *fsp)
 930 {
 931         errno = ENOSYS;
 932         return false;
 933 }
 934
 935 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
 936                                 struct smb_filename *file,
 937                                 struct security_acl *sacl,
 938                                 uint32_t access_requested,
 939                                 uint32_t access_denied)
 940 {
 941         return NT_STATUS_NOT_IMPLEMENTED;
 942 }
 943
 944 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
 945                                     struct files_struct *fsp,
 946                                     TALLOC_CTX *mem_ctx,
 947                                     DATA_BLOB *cookie)
 948 {
 949         return NT_STATUS_NOT_IMPLEMENTED;
 950 }
 951
 952 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
 953                                         struct files_struct *fsp,
 954                                         const DATA_BLOB old_cookie,
 955                                         TALLOC_CTX *mem_ctx,
 956                                         DATA_BLOB *new_cookie)
 957 {
 958         return NT_STATUS_NOT_IMPLEMENTED;
 959 }
 960
 961 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
 962                                        struct smb_request *smb1req,
 963                                        struct smbXsrv_open *op,
 964                                        const DATA_BLOB old_cookie,
 965                                        TALLOC_CTX *mem_ctx,
 966                                        struct files_struct **fsp,
 967                                        DATA_BLOB *new_cookie)
 968 {
 969         return NT_STATUS_NOT_IMPLEMENTED;
 970 }
 971
 972 /* VFS operations structure */
 973
 974 static struct vfs_fn_pointers skel_opaque_fns = {
 975         /* Disk operations */
 976
 977         .connect_fn = skel_connect,
 978         .disconnect_fn = skel_disconnect,
 979         .disk_free_fn = skel_disk_free,
 980         .get_quota_fn = skel_get_quota,
 981         .set_quota_fn = skel_set_quota,
 982         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
 983         .statvfs_fn = skel_statvfs,
 984         .fs_capabilities_fn = skel_fs_capabilities,
 985         .get_dfs_referrals_fn = skel_get_dfs_referrals,
 986         .create_dfs_pathat_fn = skel_create_dfs_pathat,
 987         .read_dfs_pathat_fn = skel_read_dfs_pathat,
 988         .snap_check_path_fn = skel_snap_check_path,
 989         .snap_create_fn = skel_snap_create,
 990         .snap_delete_fn = skel_snap_delete,
 991
 992         /* Directory operations */
 993
 994         .fdopendir_fn = skel_fdopendir,
 995         .readdir_fn = skel_readdir,
 996         .seekdir_fn = skel_seekdir,
 997         .telldir_fn = skel_telldir,
 998         .rewind_dir_fn = skel_rewind_dir,
 999         .mkdirat_fn = skel_mkdirat,
1000         .closedir_fn = skel_closedir,
1001
1002         /* File operations */
1003
1004         .openat_fn = skel_openat,
1005         .create_file_fn = skel_create_file,
1006         .close_fn = skel_close_fn,
1007         .pread_fn = skel_pread,
1008         .pread_send_fn = skel_pread_send,
1009         .pread_recv_fn = skel_pread_recv,
1010         .pwrite_fn = skel_pwrite,
1011         .pwrite_send_fn = skel_pwrite_send,
1012         .pwrite_recv_fn = skel_pwrite_recv,
1013         .lseek_fn = skel_lseek,
1014         .sendfile_fn = skel_sendfile,
1015         .recvfile_fn = skel_recvfile,
1016         .renameat_fn = skel_renameat,
1017         .fsync_send_fn = skel_fsync_send,
1018         .fsync_recv_fn = skel_fsync_recv,
1019         .stat_fn = skel_stat,
1020         .fstat_fn = skel_fstat,
1021         .lstat_fn = skel_lstat,
1022         .fstatat_fn = skel_fstatat,
1023         .get_alloc_size_fn = skel_get_alloc_size,
1024         .unlinkat_fn = skel_unlinkat,
1025         .fchmod_fn = skel_fchmod,
1026         .fchown_fn = skel_fchown,
1027         .lchown_fn = skel_lchown,
1028         .chdir_fn = skel_chdir,
1029         .getwd_fn = skel_getwd,
1030         .fntimes_fn = skel_fntimes,
1031         .ftruncate_fn = skel_ftruncate,
1032         .fallocate_fn = skel_fallocate,
1033         .lock_fn = skel_lock,
1034         .filesystem_sharemode_fn = skel_filesystem_sharemode,
1035         .fcntl_fn = skel_fcntl,
1036         .linux_setlease_fn = skel_linux_setlease,
1037         .getlock_fn = skel_getlock,
1038         .symlinkat_fn = skel_symlinkat,
1039         .readlinkat_fn = skel_vfs_readlinkat,
1040         .linkat_fn = skel_linkat,
1041         .mknodat_fn = skel_mknodat,
1042         .realpath_fn = skel_realpath,
1043         .fchflags_fn = skel_fchflags,
1044         .file_id_create_fn = skel_file_id_create,
1045         .fs_file_id_fn = skel_fs_file_id,
1046         .offload_read_send_fn = skel_offload_read_send,
1047         .offload_read_recv_fn = skel_offload_read_recv,
1048         .offload_write_send_fn = skel_offload_write_send,
1049         .offload_write_recv_fn = skel_offload_write_recv,
1050         .fget_compression_fn = skel_fget_compression,
1051         .set_compression_fn = skel_set_compression,
1052
1053         .fstreaminfo_fn = skel_fstreaminfo,
1054         .get_real_filename_at_fn = skel_get_real_filename_at,
1055         .connectpath_fn = skel_connectpath,
1056         .brl_lock_windows_fn = skel_brl_lock_windows,
1057         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1058         .strict_lock_check_fn = skel_strict_lock_check,
1059         .translate_name_fn = skel_translate_name,
1060         .parent_pathname_fn = skel_parent_pathname,
1061         .fsctl_fn = skel_fsctl,
1062         .freaddir_attr_fn = skel_freaddir_attr,
1063         .audit_file_fn = skel_audit_file,
1064
1065         /* DOS attributes. */
1066         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1067         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1068         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1069         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1070
1071         /* NT ACL operations. */
1072
1073         .fget_nt_acl_fn = skel_fget_nt_acl,
1074         .fset_nt_acl_fn = skel_fset_nt_acl,
1075
1076         /* POSIX ACL operations. */
1077
1078         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1079         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1080         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1081         .sys_acl_delete_def_fd_fn = skel_sys_acl_delete_def_fd,
1082
1083         /* EA operations. */
1084         .getxattrat_send_fn = skel_getxattrat_send,
1085         .getxattrat_recv_fn = skel_getxattrat_recv,
1086         .fgetxattr_fn = skel_fgetxattr,
1087         .flistxattr_fn = skel_flistxattr,
1088         .fremovexattr_fn = skel_fremovexattr,
1089         .fsetxattr_fn = skel_fsetxattr,
1090
1091         /* aio operations */
1092         .aio_force_fn = skel_aio_force,
1093
1094         /* durable handle operations */
1095         .durable_cookie_fn = skel_durable_cookie,
1096         .durable_disconnect_fn = skel_durable_disconnect,
1097         .durable_reconnect_fn = skel_durable_reconnect,
1098 };
1099
1100 static_decl_vfs;
1101 NTSTATUS vfs_skel_opaque_init(TALLOC_CTX *ctx)
1102 {
1103         /*
1104          * smb_vfs_assert_all_fns() makes sure every
1105          * call is implemented.
1106          *
1107          * An opaque module requires this!
1108          */
1109         smb_vfs_assert_all_fns(&skel_opaque_fns, "skel_opaque");
1110         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_opaque",
1111                                 &skel_opaque_fns);
1112 }