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