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