examples/VFS/skel_opaque.c

   1 /*
   2  * Skeleton VFS module.  Implements dummy versions of all VFS
   3  * functions.
   4  *
   5  * Copyright (C) Tim Potter, 1999-2000
   6  * Copyright (C) Alexander Bokovoy, 2002
   7  * Copyright (C) Stefan (metze) Metzmacher, 2003
   8  * Copyright (C) Jeremy Allison 2009
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 3 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #include "../source3/include/includes.h"
  25 #include "lib/util/tevent_unix.h"
  26 #include "lib/util/tevent_ntstatus.h"
  27
  28 /* PLEASE,PLEASE READ THE VFS MODULES CHAPTER OF THE
  29    SAMBA DEVELOPERS GUIDE!!!!!!
  30  */
  31
  32 /* If you take this file as template for your module
  33  * you must re-implement every function.
  34  */
  35
  36 static int skel_connect(vfs_handle_struct *handle, const char *service,
  37                         const char *user)
  38 {
  39         errno = ENOSYS;
  40         return -1;
  41 }
  42
  43 static void skel_disconnect(vfs_handle_struct *handle)
  44 {
  45         ;
  46 }
  47
  48 static uint64_t skel_disk_free(vfs_handle_struct *handle,
  49                                 const struct smb_filename *smb_fname,
  50                                 uint64_t *bsize,
  51                                 uint64_t *dfree,
  52                                 uint64_t *dsize)
  53 {
  54         *bsize = 0;
  55         *dfree = 0;
  56         *dsize = 0;
  57         return 0;
  58 }
  59
  60 static int skel_get_quota(vfs_handle_struct *handle,
  61                                 const struct smb_filename *smb_fname,
  62                                 enum SMB_QUOTA_TYPE qtype,
  63                                 unid_t id,
  64                                 SMB_DISK_QUOTA *dq)
  65 {
  66         errno = ENOSYS;
  67         return -1;
  68 }
  69
  70 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  71                           unid_t id, SMB_DISK_QUOTA *dq)
  72 {
  73         errno = ENOSYS;
  74         return -1;
  75 }
  76
  77 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
  78                                      files_struct *fsp,
  79                                      struct shadow_copy_data *shadow_copy_data,
  80                                      bool labels)
  81 {
  82         errno = ENOSYS;
  83         return -1;
  84 }
  85
  86 static int skel_statvfs(struct vfs_handle_struct *handle,
  87                                 const struct smb_filename *smb_fname,
  88                                 struct vfs_statvfs_struct *statbuf)
  89 {
  90         errno = ENOSYS;
  91         return -1;
  92 }
  93
  94 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
  95                                      enum timestamp_set_resolution *p_ts_res)
  96 {
  97         return 0;
  98 }
  99
 100 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
 101                                        struct dfs_GetDFSReferral *r)
 102 {
 103         return NT_STATUS_NOT_IMPLEMENTED;
 104 }
 105
 106 static DIR *skel_opendir(vfs_handle_struct *handle,
 107                         const struct smb_filename *smb_fname,
 108                         const char *mask,
 109                         uint32_t attr)
 110 {
 111         return NULL;
 112 }
 113
 114 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
 115                                      TALLOC_CTX *mem_ctx,
 116                                      const char *service_path,
 117                                      char **base_volume)
 118 {
 119         return NT_STATUS_NOT_SUPPORTED;
 120 }
 121
 122 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
 123                                  TALLOC_CTX *mem_ctx,
 124                                  const char *base_volume,
 125                                  time_t *tstamp,
 126                                  bool rw,
 127                                  char **base_path,
 128                                  char **snap_path)
 129 {
 130         return NT_STATUS_NOT_SUPPORTED;
 131 }
 132
 133 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
 134                                  TALLOC_CTX *mem_ctx,
 135                                  char *base_path,
 136                                  char *snap_path)
 137 {
 138         return NT_STATUS_NOT_SUPPORTED;
 139 }
 140
 141 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 142                            const char *mask, uint32_t attr)
 143 {
 144         return NULL;
 145 }
 146
 147 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 148                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 149 {
 150         return NULL;
 151 }
 152
 153 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 154 {
 155         ;
 156 }
 157
 158 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 159 {
 160         return (long)-1;
 161 }
 162
 163 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 164 {
 165         ;
 166 }
 167
 168 static int skel_mkdir(vfs_handle_struct *handle,
 169                 const struct smb_filename *smb_fname,
 170                 mode_t mode)
 171 {
 172         errno = ENOSYS;
 173         return -1;
 174 }
 175
 176 static int skel_rmdir(vfs_handle_struct *handle,
 177                 const struct smb_filename *smb_fname)
 178 {
 179         errno = ENOSYS;
 180         return -1;
 181 }
 182
 183 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 184 {
 185         errno = ENOSYS;
 186         return -1;
 187 }
 188
 189 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 190                      files_struct *fsp, int flags, mode_t mode)
 191 {
 192         errno = ENOSYS;
 193         return -1;
 194 }
 195
 196 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 197                                  struct smb_request *req,
 198                                  uint16_t root_dir_fid,
 199                                  struct smb_filename *smb_fname,
 200                                  uint32_t access_mask,
 201                                  uint32_t share_access,
 202                                  uint32_t create_disposition,
 203                                  uint32_t create_options,
 204                                  uint32_t file_attributes,
 205                                  uint32_t oplock_request,
 206                                  const struct smb2_lease *lease,
 207                                  uint64_t allocation_size,
 208                                  uint32_t private_flags,
 209                                  struct security_descriptor *sd,
 210                                  struct ea_list *ea_list,
 211                                  files_struct **result, int *pinfo,
 212                                  const struct smb2_create_blobs *in_context_blobs,
 213                                  struct smb2_create_blobs *out_context_blobs)
 214 {
 215         return NT_STATUS_NOT_IMPLEMENTED;
 216 }
 217
 218 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 219 {
 220         errno = ENOSYS;
 221         return -1;
 222 }
 223
 224 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 225                           void *data, size_t n, off_t offset)
 226 {
 227         errno = ENOSYS;
 228         return -1;
 229 }
 230
 231 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 232                                           TALLOC_CTX *mem_ctx,
 233                                           struct tevent_context *ev,
 234                                           struct files_struct *fsp,
 235                                           void *data, size_t n, off_t offset)
 236 {
 237         return NULL;
 238 }
 239
 240 static ssize_t skel_pread_recv(struct tevent_req *req,
 241                                struct vfs_aio_state *vfs_aio_state)
 242 {
 243         vfs_aio_state->error = ENOSYS;
 244         return -1;
 245 }
 246
 247 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 248                            const void *data, size_t n, off_t offset)
 249 {
 250         errno = ENOSYS;
 251         return -1;
 252 }
 253
 254 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 255                                            TALLOC_CTX *mem_ctx,
 256                                            struct tevent_context *ev,
 257                                            struct files_struct *fsp,
 258                                            const void *data,
 259                                            size_t n, off_t offset)
 260 {
 261         return NULL;
 262 }
 263
 264 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 265                                 struct vfs_aio_state *vfs_aio_state)
 266 {
 267         vfs_aio_state->error = ENOSYS;
 268         return -1;
 269 }
 270
 271 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 272                         off_t offset, int whence)
 273 {
 274         errno = ENOSYS;
 275         return (off_t) - 1;
 276 }
 277
 278 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 279                              files_struct *fromfsp, const DATA_BLOB *hdr,
 280                              off_t offset, size_t n)
 281 {
 282         errno = ENOSYS;
 283         return -1;
 284 }
 285
 286 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 287                              files_struct *tofsp, off_t offset, size_t n)
 288 {
 289         errno = ENOSYS;
 290         return -1;
 291 }
 292
 293 static int skel_renameat(vfs_handle_struct *handle,
 294                        files_struct *srcfsp,
 295                        const struct smb_filename *smb_fname_src,
 296                        files_struct *dstfsp,
 297                        const struct smb_filename *smb_fname_dst)
 298 {
 299         errno = ENOSYS;
 300         return -1;
 301 }
 302
 303 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 304                                           TALLOC_CTX *mem_ctx,
 305                                           struct tevent_context *ev,
 306                                           struct files_struct *fsp)
 307 {
 308         return NULL;
 309 }
 310
 311 static int skel_fsync_recv(struct tevent_req *req,
 312                            struct vfs_aio_state *vfs_aio_state)
 313 {
 314         vfs_aio_state->error = ENOSYS;
 315         return -1;
 316 }
 317
 318 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 319 {
 320         errno = ENOSYS;
 321         return -1;
 322 }
 323
 324 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 325                       SMB_STRUCT_STAT *sbuf)
 326 {
 327         errno = ENOSYS;
 328         return -1;
 329 }
 330
 331 static int skel_lstat(vfs_handle_struct *handle,
 332                       struct smb_filename *smb_fname)
 333 {
 334         errno = ENOSYS;
 335         return -1;
 336 }
 337
 338 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 339                                     struct files_struct *fsp,
 340                                     const SMB_STRUCT_STAT *sbuf)
 341 {
 342         errno = ENOSYS;
 343         return -1;
 344 }
 345
 346 static int skel_unlink(vfs_handle_struct *handle,
 347                        const struct smb_filename *smb_fname)
 348 {
 349         errno = ENOSYS;
 350         return -1;
 351 }
 352
 353 static int skel_chmod(vfs_handle_struct *handle,
 354                         const struct smb_filename *smb_fname,
 355                         mode_t mode)
 356 {
 357         errno = ENOSYS;
 358         return -1;
 359 }
 360
 361 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 362                        mode_t mode)
 363 {
 364         errno = ENOSYS;
 365         return -1;
 366 }
 367
 368 static int skel_chown(vfs_handle_struct *handle,
 369                         const struct smb_filename *smb_fname,
 370                         uid_t uid,
 371                         gid_t gid)
 372 {
 373         errno = ENOSYS;
 374         return -1;
 375 }
 376
 377 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 378                        uid_t uid, gid_t gid)
 379 {
 380         errno = ENOSYS;
 381         return -1;
 382 }
 383
 384 static int skel_lchown(vfs_handle_struct *handle,
 385                         const struct smb_filename *smb_fname,
 386                         uid_t uid,
 387                         gid_t gid)
 388 {
 389         errno = ENOSYS;
 390         return -1;
 391 }
 392
 393 static int skel_chdir(vfs_handle_struct *handle,
 394                         const struct smb_filename *smb_fname)
 395 {
 396         errno = ENOSYS;
 397         return -1;
 398 }
 399
 400 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 401                                 TALLOC_CTX *ctx)
 402 {
 403         errno = ENOSYS;
 404         return NULL;
 405 }
 406
 407 static int skel_ntimes(vfs_handle_struct *handle,
 408                        const struct smb_filename *smb_fname,
 409                        struct smb_file_time *ft)
 410 {
 411         errno = ENOSYS;
 412         return -1;
 413 }
 414
 415 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 416                           off_t offset)
 417 {
 418         errno = ENOSYS;
 419         return -1;
 420 }
 421
 422 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 423                           uint32_t mode, off_t offset, off_t len)
 424 {
 425         errno = ENOSYS;
 426         return -1;
 427 }
 428
 429 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 430                       off_t offset, off_t count, int type)
 431 {
 432         errno = ENOSYS;
 433         return false;
 434 }
 435
 436 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 437                              struct files_struct *fsp,
 438                              uint32_t share_mode, uint32_t access_mask)
 439 {
 440         errno = ENOSYS;
 441         return -1;
 442 }
 443
 444 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 445                                struct files_struct *fsp, int leasetype)
 446 {
 447         errno = ENOSYS;
 448         return -1;
 449 }
 450
 451 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 452                          off_t *poffset, off_t *pcount, int *ptype,
 453                          pid_t *ppid)
 454 {
 455         errno = ENOSYS;
 456         return false;
 457 }
 458
 459 static int skel_symlink(vfs_handle_struct *handle,
 460                         const char *link_contents,
 461                         const struct smb_filename *new_smb_fname)
 462 {
 463         errno = ENOSYS;
 464         return -1;
 465 }
 466
 467 static int skel_vfs_readlink(vfs_handle_struct *handle,
 468                         const struct smb_filename *smb_fname,
 469                         char *buf,
 470                         size_t bufsiz)
 471 {
 472         errno = ENOSYS;
 473         return -1;
 474 }
 475
 476 static int skel_link(vfs_handle_struct *handle,
 477                         const struct smb_filename *old_smb_fname,
 478                         const struct smb_filename *new_smb_fname)
 479 {
 480         errno = ENOSYS;
 481         return -1;
 482 }
 483
 484 static int skel_mknod(vfs_handle_struct *handle,
 485                         const struct smb_filename *smb_fname,
 486                         mode_t mode,
 487                         SMB_DEV_T dev)
 488 {
 489         errno = ENOSYS;
 490         return -1;
 491 }
 492
 493 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 494                         TALLOC_CTX *ctx,
 495                         const struct smb_filename *smb_fname)
 496 {
 497         errno = ENOSYS;
 498         return NULL;
 499 }
 500
 501 static int skel_chflags(vfs_handle_struct *handle,
 502                         const struct smb_filename *smb_fname,
 503                         uint flags)
 504 {
 505         errno = ENOSYS;
 506         return -1;
 507 }
 508
 509 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 510                                           const SMB_STRUCT_STAT *sbuf)
 511 {
 512         struct file_id id;
 513         ZERO_STRUCT(id);
 514         errno = ENOSYS;
 515         return id;
 516 }
 517
 518 static uint64_t skel_fs_file_id(vfs_handle_struct *handle,
 519                                 const SMB_STRUCT_STAT *sbuf)
 520 {
 521         errno = ENOSYS;
 522         return 0;
 523 }
 524
 525 struct skel_offload_read_state {
 526         bool dummy;
 527 };
 528
 529 static struct tevent_req *skel_offload_read_send(
 530         TALLOC_CTX *mem_ctx,
 531         struct tevent_context *ev,
 532         struct vfs_handle_struct *handle,
 533         struct files_struct *fsp,
 534         uint32_t fsctl,
 535         uint32_t ttl,
 536         off_t offset,
 537         size_t to_copy)
 538 {
 539         struct tevent_req *req = NULL;
 540         struct skel_offload_read_state *state = NULL;
 541
 542         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 543         if (req == NULL) {
 544                 return NULL;
 545         }
 546
 547         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 548         return tevent_req_post(req, ev);
 549 }
 550
 551 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 552                                        struct vfs_handle_struct *handle,
 553                                        TALLOC_CTX *mem_ctx,
 554                                        DATA_BLOB *_token_blob)
 555 {
 556         NTSTATUS status;
 557
 558         if (tevent_req_is_nterror(req, &status)) {
 559                 tevent_req_received(req);
 560                 return status;
 561         }
 562         tevent_req_received(req);
 563
 564         return NT_STATUS_OK;
 565 }
 566
 567 struct skel_cc_state {
 568         uint64_t unused;
 569 };
 570 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 571                                                TALLOC_CTX *mem_ctx,
 572                                                struct tevent_context *ev,
 573                                                uint32_t fsctl,
 574                                                DATA_BLOB *token,
 575                                                off_t transfer_offset,
 576                                                struct files_struct *dest_fsp,
 577                                                off_t dest_off,
 578                                                off_t num)
 579 {
 580         struct tevent_req *req;
 581         struct skel_cc_state *cc_state;
 582
 583         req = tevent_req_create(mem_ctx, &cc_state, struct skel_cc_state);
 584         if (req == NULL) {
 585                 return NULL;
 586         }
 587
 588         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 589         return tevent_req_post(req, ev);
 590 }
 591
 592 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 593                                      struct tevent_req *req,
 594                                      off_t *copied)
 595 {
 596         NTSTATUS status;
 597
 598         if (tevent_req_is_nterror(req, &status)) {
 599                 tevent_req_received(req);
 600                 return status;
 601         }
 602         tevent_req_received(req);
 603
 604         return NT_STATUS_OK;
 605 }
 606
 607 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 608                                      TALLOC_CTX *mem_ctx,
 609                                      struct files_struct *fsp,
 610                                      struct smb_filename *smb_fname,
 611                                      uint16_t *_compression_fmt)
 612 {
 613         return NT_STATUS_INVALID_DEVICE_REQUEST;
 614 }
 615
 616 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 617                                      TALLOC_CTX *mem_ctx,
 618                                      struct files_struct *fsp,
 619                                      uint16_t compression_fmt)
 620 {
 621         return NT_STATUS_INVALID_DEVICE_REQUEST;
 622 }
 623
 624 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 625                                 struct files_struct *fsp,
 626                                 const struct smb_filename *smb_fname,
 627                                 TALLOC_CTX *mem_ctx,
 628                                 unsigned int *num_streams,
 629                                 struct stream_struct **streams)
 630 {
 631         return NT_STATUS_NOT_IMPLEMENTED;
 632 }
 633
 634 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 635                                   const char *path,
 636                                   const char *name,
 637                                   TALLOC_CTX *mem_ctx, char **found_name)
 638 {
 639         errno = ENOSYS;
 640         return -1;
 641 }
 642
 643 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 644                                 const struct smb_filename *smb_fname)
 645 {
 646         errno = ENOSYS;
 647         return NULL;
 648 }
 649
 650 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 651                                       struct byte_range_lock *br_lck,
 652                                       struct lock_struct *plock)
 653 {
 654         return NT_STATUS_NOT_IMPLEMENTED;
 655 }
 656
 657 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 658                                     struct byte_range_lock *br_lck,
 659                                     const struct lock_struct *plock)
 660 {
 661         errno = ENOSYS;
 662         return false;
 663 }
 664
 665 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 666                                    struct files_struct *fsp,
 667                                    struct lock_struct *plock)
 668 {
 669         errno = ENOSYS;
 670         return false;
 671 }
 672
 673 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 674                                     const char *mapped_name,
 675                                     enum vfs_translate_direction direction,
 676                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 677 {
 678         return NT_STATUS_NOT_IMPLEMENTED;
 679 }
 680
 681 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 682                            struct files_struct *fsp,
 683                            TALLOC_CTX *ctx,
 684                            uint32_t function,
 685                            uint16_t req_flags,  /* Needed for UNICODE ... */
 686                            const uint8_t *_in_data,
 687                            uint32_t in_len,
 688                            uint8_t **_out_data,
 689                            uint32_t max_out_len, uint32_t *out_len)
 690 {
 691         return NT_STATUS_NOT_IMPLEMENTED;
 692 }
 693
 694 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 695                                   const struct smb_filename *fname,
 696                                   TALLOC_CTX *mem_ctx,
 697                                   struct readdir_attr_data **pattr_data)
 698 {
 699         return NT_STATUS_NOT_IMPLEMENTED;
 700 }
 701
 702 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 703                                 struct smb_filename *smb_fname,
 704                                 uint32_t *dosmode)
 705 {
 706         return NT_STATUS_NOT_IMPLEMENTED;
 707 }
 708
 709 struct skel_get_dos_attributes_state {
 710         struct vfs_aio_state aio_state;
 711         uint32_t dosmode;
 712 };
 713
 714 static struct tevent_req *skel_get_dos_attributes_send(
 715                         TALLOC_CTX *mem_ctx,
 716                         struct tevent_context *ev,
 717                         struct vfs_handle_struct *handle,
 718                         files_struct *dir_fsp,
 719                         struct smb_filename *smb_fname)
 720 {
 721         struct tevent_req *req = NULL;
 722         struct skel_get_dos_attributes_state *state = NULL;
 723
 724         req = tevent_req_create(mem_ctx, &state,
 725                                 struct skel_get_dos_attributes_state);
 726         if (req == NULL) {
 727                 return NULL;
 728         }
 729
 730         tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
 731         return tevent_req_post(req, ev);
 732 }
 733
 734 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
 735                                              struct vfs_aio_state *aio_state,
 736                                              uint32_t *dosmode)
 737 {
 738         struct skel_get_dos_attributes_state *state =
 739                 tevent_req_data(req,
 740                 struct skel_get_dos_attributes_state);
 741         NTSTATUS status;
 742
 743         if (tevent_req_is_nterror(req, &status)) {
 744                 tevent_req_received(req);
 745                 return status;
 746         }
 747
 748         *aio_state = state->aio_state;
 749         *dosmode = state->dosmode;
 750         tevent_req_received(req);
 751         return NT_STATUS_OK;
 752 }
 753
 754 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
 755                                 struct files_struct *fsp,
 756                                 uint32_t *dosmode)
 757 {
 758         return NT_STATUS_NOT_IMPLEMENTED;
 759 }
 760
 761 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
 762                                 const struct smb_filename *smb_fname,
 763                                 uint32_t dosmode)
 764 {
 765         return NT_STATUS_NOT_IMPLEMENTED;
 766 }
 767
 768 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
 769                                 struct files_struct *fsp,
 770                                 uint32_t dosmode)
 771 {
 772         return NT_STATUS_NOT_IMPLEMENTED;
 773 }
 774
 775 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 776                                  uint32_t security_info,
 777                                  TALLOC_CTX *mem_ctx,
 778                                  struct security_descriptor **ppdesc)
 779 {
 780         return NT_STATUS_NOT_IMPLEMENTED;
 781 }
 782
 783 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
 784                                 const struct smb_filename *smb_fname,
 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_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 793                                  uint32_t security_info_sent,
 794                                  const struct security_descriptor *psd)
 795 {
 796         return NT_STATUS_NOT_IMPLEMENTED;
 797 }
 798
 799 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
 800                                        const struct smb_filename *smb_fname,
 801                                        SMB_ACL_TYPE_T type,
 802                                        TALLOC_CTX *mem_ctx)
 803 {
 804         errno = ENOSYS;
 805         return (SMB_ACL_T) NULL;
 806 }
 807
 808 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
 809                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
 810 {
 811         errno = ENOSYS;
 812         return (SMB_ACL_T) NULL;
 813 }
 814
 815 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
 816                                 const struct smb_filename *smb_fname,
 817                                 TALLOC_CTX *mem_ctx,
 818                                 char **blob_description,
 819                                 DATA_BLOB *blob)
 820 {
 821         errno = ENOSYS;
 822         return -1;
 823 }
 824
 825 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
 826                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
 827                                     char **blob_description, DATA_BLOB *blob)
 828 {
 829         errno = ENOSYS;
 830         return -1;
 831 }
 832
 833 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
 834                                 const struct smb_filename *smb_fname,
 835                                 SMB_ACL_TYPE_T acltype,
 836                                 SMB_ACL_T theacl)
 837 {
 838         errno = ENOSYS;
 839         return -1;
 840 }
 841
 842 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
 843                                SMB_ACL_T theacl)
 844 {
 845         errno = ENOSYS;
 846         return -1;
 847 }
 848
 849 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
 850                                         const struct smb_filename *smb_fname)
 851 {
 852         errno = ENOSYS;
 853         return -1;
 854 }
 855
 856 static ssize_t skel_getxattr(vfs_handle_struct *handle,
 857                                 const struct smb_filename *smb_fname,
 858                                 const char *name,
 859                                 void *value,
 860                                 size_t size)
 861 {
 862         errno = ENOSYS;
 863         return -1;
 864 }
 865
 866 struct skel_getxattrat_state {
 867         struct vfs_aio_state aio_state;
 868         ssize_t xattr_size;
 869         uint8_t *xattr_value;
 870 };
 871
 872 static struct tevent_req *skel_getxattrat_send(
 873                         TALLOC_CTX *mem_ctx,
 874                         struct tevent_context *ev,
 875                         struct vfs_handle_struct *handle,
 876                         files_struct *dir_fsp,
 877                         const struct smb_filename *smb_fname,
 878                         const char *xattr_name,
 879                         size_t alloc_hint)
 880 {
 881         struct tevent_req *req = NULL;
 882         struct skel_getxattrat_state *state = NULL;
 883
 884         req = tevent_req_create(mem_ctx, &state,
 885                                 struct skel_getxattrat_state);
 886         if (req == NULL) {
 887                 return NULL;
 888         }
 889
 890         tevent_req_error(req, ENOSYS);
 891         return tevent_req_post(req, ev);
 892 }
 893
 894 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
 895                                     struct vfs_aio_state *aio_state,
 896                                     TALLOC_CTX *mem_ctx,
 897                                     uint8_t **xattr_value)
 898 {
 899         struct skel_getxattrat_state *state = tevent_req_data(
 900                 req, struct skel_getxattrat_state);
 901         ssize_t xattr_size;
 902
 903         if (tevent_req_is_unix_error(req, &aio_state->error)) {
 904                 tevent_req_received(req);
 905                 return -1;
 906         }
 907
 908         *aio_state = state->aio_state;
 909         xattr_size = state->xattr_size;
 910         if (xattr_value != NULL) {
 911                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
 912         }
 913
 914         tevent_req_received(req);
 915         return xattr_size;
 916 }
 917
 918 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
 919                               struct files_struct *fsp, const char *name,
 920                               void *value, size_t size)
 921 {
 922         errno = ENOSYS;
 923         return -1;
 924 }
 925
 926 static ssize_t skel_listxattr(vfs_handle_struct *handle,
 927                                 const struct smb_filename *smb_fname,
 928                                 char *list,
 929                                 size_t size)
 930 {
 931         errno = ENOSYS;
 932         return -1;
 933 }
 934
 935 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
 936                                struct files_struct *fsp, char *list,
 937                                size_t size)
 938 {
 939         errno = ENOSYS;
 940         return -1;
 941 }
 942
 943 static int skel_removexattr(vfs_handle_struct *handle,
 944                         const struct smb_filename *smb_fname,
 945                         const char *name)
 946 {
 947         errno = ENOSYS;
 948         return -1;
 949 }
 950
 951 static int skel_fremovexattr(vfs_handle_struct *handle,
 952                              struct files_struct *fsp, const char *name)
 953 {
 954         errno = ENOSYS;
 955         return -1;
 956 }
 957
 958 static int skel_setxattr(vfs_handle_struct *handle,
 959                         const struct smb_filename *smb_fname,
 960                         const char *name,
 961                         const void *value,
 962                         size_t size,
 963                         int flags)
 964 {
 965         errno = ENOSYS;
 966         return -1;
 967 }
 968
 969 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
 970                           const char *name, const void *value, size_t size,
 971                           int flags)
 972 {
 973         errno = ENOSYS;
 974         return -1;
 975 }
 976
 977 static bool skel_aio_force(struct vfs_handle_struct *handle,
 978                            struct files_struct *fsp)
 979 {
 980         errno = ENOSYS;
 981         return false;
 982 }
 983
 984 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
 985                                 struct smb_filename *file,
 986                                 struct security_acl *sacl,
 987                                 uint32_t access_requested,
 988                                 uint32_t access_denied)
 989 {
 990         return NT_STATUS_NOT_IMPLEMENTED;
 991 }
 992
 993 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
 994                                     struct files_struct *fsp,
 995                                     TALLOC_CTX *mem_ctx,
 996                                     DATA_BLOB *cookie)
 997 {
 998         return NT_STATUS_NOT_IMPLEMENTED;
 999 }
1000
1001 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1002                                         struct files_struct *fsp,
1003                                         const DATA_BLOB old_cookie,
1004                                         TALLOC_CTX *mem_ctx,
1005                                         DATA_BLOB *new_cookie)
1006 {
1007         return NT_STATUS_NOT_IMPLEMENTED;
1008 }
1009
1010 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1011                                        struct smb_request *smb1req,
1012                                        struct smbXsrv_open *op,
1013                                        const DATA_BLOB old_cookie,
1014                                        TALLOC_CTX *mem_ctx,
1015                                        struct files_struct **fsp,
1016                                        DATA_BLOB *new_cookie)
1017 {
1018         return NT_STATUS_NOT_IMPLEMENTED;
1019 }
1020
1021 /* VFS operations structure */
1022
1023 static struct vfs_fn_pointers skel_opaque_fns = {
1024         /* Disk operations */
1025
1026         .connect_fn = skel_connect,
1027         .disconnect_fn = skel_disconnect,
1028         .disk_free_fn = skel_disk_free,
1029         .get_quota_fn = skel_get_quota,
1030         .set_quota_fn = skel_set_quota,
1031         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1032         .statvfs_fn = skel_statvfs,
1033         .fs_capabilities_fn = skel_fs_capabilities,
1034         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1035         .snap_check_path_fn = skel_snap_check_path,
1036         .snap_create_fn = skel_snap_create,
1037         .snap_delete_fn = skel_snap_delete,
1038
1039         /* Directory operations */
1040
1041         .opendir_fn = skel_opendir,
1042         .fdopendir_fn = skel_fdopendir,
1043         .readdir_fn = skel_readdir,
1044         .seekdir_fn = skel_seekdir,
1045         .telldir_fn = skel_telldir,
1046         .rewind_dir_fn = skel_rewind_dir,
1047         .mkdir_fn = skel_mkdir,
1048         .rmdir_fn = skel_rmdir,
1049         .closedir_fn = skel_closedir,
1050
1051         /* File operations */
1052
1053         .open_fn = skel_open,
1054         .create_file_fn = skel_create_file,
1055         .close_fn = skel_close_fn,
1056         .pread_fn = skel_pread,
1057         .pread_send_fn = skel_pread_send,
1058         .pread_recv_fn = skel_pread_recv,
1059         .pwrite_fn = skel_pwrite,
1060         .pwrite_send_fn = skel_pwrite_send,
1061         .pwrite_recv_fn = skel_pwrite_recv,
1062         .lseek_fn = skel_lseek,
1063         .sendfile_fn = skel_sendfile,
1064         .recvfile_fn = skel_recvfile,
1065         .renameat_fn = skel_renameat,
1066         .fsync_send_fn = skel_fsync_send,
1067         .fsync_recv_fn = skel_fsync_recv,
1068         .stat_fn = skel_stat,
1069         .fstat_fn = skel_fstat,
1070         .lstat_fn = skel_lstat,
1071         .get_alloc_size_fn = skel_get_alloc_size,
1072         .unlink_fn = skel_unlink,
1073         .chmod_fn = skel_chmod,
1074         .fchmod_fn = skel_fchmod,
1075         .chown_fn = skel_chown,
1076         .fchown_fn = skel_fchown,
1077         .lchown_fn = skel_lchown,
1078         .chdir_fn = skel_chdir,
1079         .getwd_fn = skel_getwd,
1080         .ntimes_fn = skel_ntimes,
1081         .ftruncate_fn = skel_ftruncate,
1082         .fallocate_fn = skel_fallocate,
1083         .lock_fn = skel_lock,
1084         .kernel_flock_fn = skel_kernel_flock,
1085         .linux_setlease_fn = skel_linux_setlease,
1086         .getlock_fn = skel_getlock,
1087         .symlink_fn = skel_symlink,
1088         .readlink_fn = skel_vfs_readlink,
1089         .link_fn = skel_link,
1090         .mknod_fn = skel_mknod,
1091         .realpath_fn = skel_realpath,
1092         .chflags_fn = skel_chflags,
1093         .file_id_create_fn = skel_file_id_create,
1094         .fs_file_id_fn = skel_fs_file_id,
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         .strict_lock_check_fn = skel_strict_lock_check,
1108         .translate_name_fn = skel_translate_name,
1109         .fsctl_fn = skel_fsctl,
1110         .readdir_attr_fn = skel_readdir_attr,
1111         .audit_file_fn = skel_audit_file,
1112
1113         /* DOS attributes. */
1114         .get_dos_attributes_fn = skel_get_dos_attributes,
1115         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1116         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1117         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1118         .set_dos_attributes_fn = skel_set_dos_attributes,
1119         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1120
1121         /* NT ACL operations. */
1122
1123         .fget_nt_acl_fn = skel_fget_nt_acl,
1124         .get_nt_acl_fn = skel_get_nt_acl,
1125         .fset_nt_acl_fn = skel_fset_nt_acl,
1126
1127         /* POSIX ACL operations. */
1128
1129         .sys_acl_get_file_fn = skel_sys_acl_get_file,
1130         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1131         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
1132         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1133         .sys_acl_set_file_fn = skel_sys_acl_set_file,
1134         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1135         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1136
1137         /* EA operations. */
1138         .getxattr_fn = skel_getxattr,
1139         .getxattrat_send_fn = skel_getxattrat_send,
1140         .getxattrat_recv_fn = skel_getxattrat_recv,
1141         .fgetxattr_fn = skel_fgetxattr,
1142         .listxattr_fn = skel_listxattr,
1143         .flistxattr_fn = skel_flistxattr,
1144         .removexattr_fn = skel_removexattr,
1145         .fremovexattr_fn = skel_fremovexattr,
1146         .setxattr_fn = skel_setxattr,
1147         .fsetxattr_fn = skel_fsetxattr,
1148
1149         /* aio operations */
1150         .aio_force_fn = skel_aio_force,
1151
1152         /* durable handle operations */
1153         .durable_cookie_fn = skel_durable_cookie,
1154         .durable_disconnect_fn = skel_durable_disconnect,
1155         .durable_reconnect_fn = skel_durable_reconnect,
1156 };
1157
1158 static_decl_vfs;
1159 NTSTATUS vfs_skel_opaque_init(TALLOC_CTX *ctx)
1160 {
1161         /*
1162          * smb_vfs_assert_all_fns() makes sure every
1163          * call is implemented.
1164          *
1165          * An opaque module requires this!
1166          */
1167         smb_vfs_assert_all_fns(&skel_opaque_fns, "skel_opaque");
1168         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_opaque",
1169                                 &skel_opaque_fns);
1170 }