examples/VFS/skel_transparent.c

   1 /*
   2  * Skeleton VFS module.  Implements passthrough operation of all VFS
   3  * calls to disk 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  * please make sure that you remove all skel_XXX() functions you don't
  34  * want to implement!! The passthrough operations are not
  35  * neccessary in a real module.
  36  *
  37  * --metze
  38  */
  39
  40 static int skel_connect(vfs_handle_struct *handle, const char *service,
  41                         const char *user)
  42 {
  43         return SMB_VFS_NEXT_CONNECT(handle, service, user);
  44 }
  45
  46 static void skel_disconnect(vfs_handle_struct *handle)
  47 {
  48         SMB_VFS_NEXT_DISCONNECT(handle);
  49 }
  50
  51 static uint64_t skel_disk_free(vfs_handle_struct *handle,
  52                                 const struct smb_filename *smb_fname,
  53                                 uint64_t *bsize,
  54                                 uint64_t *dfree,
  55                                 uint64_t *dsize)
  56 {
  57         return SMB_VFS_NEXT_DISK_FREE(handle, smb_fname, bsize, dfree, dsize);
  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         return SMB_VFS_NEXT_GET_QUOTA(handle, smb_fname, qtype, id, dq);
  67 }
  68
  69 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  70                           unid_t id, SMB_DISK_QUOTA *dq)
  71 {
  72         return SMB_VFS_NEXT_SET_QUOTA(handle, qtype, id, dq);
  73 }
  74
  75 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
  76                                      files_struct *fsp,
  77                                      struct shadow_copy_data *shadow_copy_data,
  78                                      bool labels)
  79 {
  80         return SMB_VFS_NEXT_GET_SHADOW_COPY_DATA(handle, fsp, shadow_copy_data,
  81                                                  labels);
  82 }
  83
  84 static int skel_statvfs(struct vfs_handle_struct *handle,
  85                         const struct smb_filename *smb_fname,
  86                         struct vfs_statvfs_struct *statbuf)
  87 {
  88         return SMB_VFS_NEXT_STATVFS(handle, smb_fname, statbuf);
  89 }
  90
  91 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
  92                                      enum timestamp_set_resolution *p_ts_res)
  93 {
  94         return SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
  95 }
  96
  97 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
  98                                        struct dfs_GetDFSReferral *r)
  99 {
 100         return SMB_VFS_NEXT_GET_DFS_REFERRALS(handle, r);
 101 }
 102
 103 static DIR *skel_opendir(vfs_handle_struct *handle,
 104                         const struct smb_filename *smb_fname,
 105                         const char *mask,
 106                         uint32_t attr)
 107 {
 108         return SMB_VFS_NEXT_OPENDIR(handle, smb_fname, mask, attr);
 109 }
 110
 111 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
 112                                      TALLOC_CTX *mem_ctx,
 113                                      const char *service_path,
 114                                      char **base_volume)
 115 {
 116         return SMB_VFS_NEXT_SNAP_CHECK_PATH(handle, mem_ctx, service_path,
 117                                             base_volume);
 118 }
 119
 120 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
 121                                  TALLOC_CTX *mem_ctx,
 122                                  const char *base_volume,
 123                                  time_t *tstamp,
 124                                  bool rw,
 125                                  char **base_path,
 126                                  char **snap_path)
 127 {
 128         return SMB_VFS_NEXT_SNAP_CREATE(handle, mem_ctx, base_volume, tstamp,
 129                                         rw, base_path, snap_path);
 130 }
 131
 132 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
 133                                  TALLOC_CTX *mem_ctx,
 134                                  char *base_path,
 135                                  char *snap_path)
 136 {
 137         return SMB_VFS_NEXT_SNAP_DELETE(handle, mem_ctx, base_path, snap_path);
 138 }
 139
 140 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 141                            const char *mask, uint32_t attr)
 142 {
 143         return SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
 144 }
 145
 146 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 147                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 148 {
 149         return SMB_VFS_NEXT_READDIR(handle, dirp, sbuf);
 150 }
 151
 152 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 153 {
 154         SMB_VFS_NEXT_SEEKDIR(handle, dirp, offset);
 155 }
 156
 157 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 158 {
 159         return SMB_VFS_NEXT_TELLDIR(handle, dirp);
 160 }
 161
 162 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 163 {
 164         SMB_VFS_NEXT_REWINDDIR(handle, dirp);
 165 }
 166
 167 static int skel_mkdirat(vfs_handle_struct *handle,
 168                 struct files_struct *dirfsp,
 169                 const struct smb_filename *smb_fname,
 170                 mode_t mode)
 171 {
 172         return SMB_VFS_NEXT_MKDIRAT(handle,
 173                         dirfsp,
 174                         smb_fname,
 175                         mode);
 176 }
 177
 178 static int skel_rmdir(vfs_handle_struct *handle,
 179                 const struct smb_filename *smb_fname)
 180 {
 181         return SMB_VFS_NEXT_RMDIR(handle, smb_fname);
 182 }
 183
 184 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 185 {
 186         return SMB_VFS_NEXT_CLOSEDIR(handle, dir);
 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         return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
 193 }
 194
 195 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 196                                  struct smb_request *req,
 197                                  uint16_t root_dir_fid,
 198                                  struct smb_filename *smb_fname,
 199                                  uint32_t access_mask,
 200                                  uint32_t share_access,
 201                                  uint32_t create_disposition,
 202                                  uint32_t create_options,
 203                                  uint32_t file_attributes,
 204                                  uint32_t oplock_request,
 205                                  const struct smb2_lease *lease,
 206                                  uint64_t allocation_size,
 207                                  uint32_t private_flags,
 208                                  struct security_descriptor *sd,
 209                                  struct ea_list *ea_list,
 210                                  files_struct ** result, int *pinfo,
 211                                  const struct smb2_create_blobs *in_context_blobs,
 212                                  struct smb2_create_blobs *out_context_blobs)
 213 {
 214         return SMB_VFS_NEXT_CREATE_FILE(handle,
 215                                         req,
 216                                         root_dir_fid,
 217                                         smb_fname,
 218                                         access_mask,
 219                                         share_access,
 220                                         create_disposition,
 221                                         create_options,
 222                                         file_attributes,
 223                                         oplock_request,
 224                                         lease,
 225                                         allocation_size,
 226                                         private_flags,
 227                                         sd, ea_list, result, pinfo,
 228                                         in_context_blobs, out_context_blobs);
 229 }
 230
 231 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 232 {
 233         return SMB_VFS_NEXT_CLOSE(handle, fsp);
 234 }
 235
 236 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 237                           void *data, size_t n, off_t offset)
 238 {
 239         return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
 240 }
 241
 242 struct skel_pread_state {
 243         ssize_t ret;
 244         struct vfs_aio_state vfs_aio_state;
 245 };
 246
 247 static void skel_pread_done(struct tevent_req *subreq);
 248
 249 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 250                                           TALLOC_CTX *mem_ctx,
 251                                           struct tevent_context *ev,
 252                                           struct files_struct *fsp,
 253                                           void *data, size_t n, off_t offset)
 254 {
 255         struct tevent_req *req, *subreq;
 256         struct skel_pread_state *state;
 257
 258         req = tevent_req_create(mem_ctx, &state, struct skel_pread_state);
 259         if (req == NULL) {
 260                 return NULL;
 261         }
 262         subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
 263                                          n, offset);
 264         if (tevent_req_nomem(subreq, req)) {
 265                 return tevent_req_post(req, ev);
 266         }
 267         tevent_req_set_callback(subreq, skel_pread_done, req);
 268         return req;
 269 }
 270
 271 static void skel_pread_done(struct tevent_req *subreq)
 272 {
 273         struct tevent_req *req =
 274             tevent_req_callback_data(subreq, struct tevent_req);
 275         struct skel_pread_state *state =
 276             tevent_req_data(req, struct skel_pread_state);
 277
 278         state->ret = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
 279         TALLOC_FREE(subreq);
 280         tevent_req_done(req);
 281 }
 282
 283 static ssize_t skel_pread_recv(struct tevent_req *req,
 284                                struct vfs_aio_state *vfs_aio_state)
 285 {
 286         struct skel_pread_state *state =
 287             tevent_req_data(req, struct skel_pread_state);
 288
 289         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 290                 return -1;
 291         }
 292         *vfs_aio_state = state->vfs_aio_state;
 293         return state->ret;
 294 }
 295
 296 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 297                            const void *data, size_t n, off_t offset)
 298 {
 299         return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
 300 }
 301
 302 struct skel_pwrite_state {
 303         ssize_t ret;
 304         struct vfs_aio_state vfs_aio_state;
 305 };
 306
 307 static void skel_pwrite_done(struct tevent_req *subreq);
 308
 309 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 310                                            TALLOC_CTX *mem_ctx,
 311                                            struct tevent_context *ev,
 312                                            struct files_struct *fsp,
 313                                            const void *data,
 314                                            size_t n, off_t offset)
 315 {
 316         struct tevent_req *req, *subreq;
 317         struct skel_pwrite_state *state;
 318
 319         req = tevent_req_create(mem_ctx, &state, struct skel_pwrite_state);
 320         if (req == NULL) {
 321                 return NULL;
 322         }
 323         subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
 324                                           n, offset);
 325         if (tevent_req_nomem(subreq, req)) {
 326                 return tevent_req_post(req, ev);
 327         }
 328         tevent_req_set_callback(subreq, skel_pwrite_done, req);
 329         return req;
 330 }
 331
 332 static void skel_pwrite_done(struct tevent_req *subreq)
 333 {
 334         struct tevent_req *req =
 335             tevent_req_callback_data(subreq, struct tevent_req);
 336         struct skel_pwrite_state *state =
 337             tevent_req_data(req, struct skel_pwrite_state);
 338
 339         state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
 340         TALLOC_FREE(subreq);
 341         tevent_req_done(req);
 342 }
 343
 344 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 345                                 struct vfs_aio_state *vfs_aio_state)
 346 {
 347         struct skel_pwrite_state *state =
 348             tevent_req_data(req, struct skel_pwrite_state);
 349
 350         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 351                 return -1;
 352         }
 353         *vfs_aio_state = state->vfs_aio_state;
 354         return state->ret;
 355 }
 356
 357 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 358                         off_t offset, int whence)
 359 {
 360         return SMB_VFS_NEXT_LSEEK(handle, fsp, offset, whence);
 361 }
 362
 363 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 364                              files_struct *fromfsp, const DATA_BLOB *hdr,
 365                              off_t offset, size_t n)
 366 {
 367         return SMB_VFS_NEXT_SENDFILE(handle, tofd, fromfsp, hdr, offset, n);
 368 }
 369
 370 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 371                              files_struct *tofsp, off_t offset, size_t n)
 372 {
 373         return SMB_VFS_NEXT_RECVFILE(handle, fromfd, tofsp, offset, n);
 374 }
 375
 376 static int skel_renameat(vfs_handle_struct *handle,
 377                        files_struct *srcfsp,
 378                        const struct smb_filename *smb_fname_src,
 379                        files_struct *dstfsp,
 380                        const struct smb_filename *smb_fname_dst)
 381 {
 382         return SMB_VFS_NEXT_RENAMEAT(handle,
 383                         srcfsp,
 384                         smb_fname_src,
 385                         dstfsp,
 386                         smb_fname_dst);
 387 }
 388
 389 struct skel_fsync_state {
 390         int ret;
 391         struct vfs_aio_state vfs_aio_state;
 392 };
 393
 394 static void skel_fsync_done(struct tevent_req *subreq);
 395
 396 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 397                                           TALLOC_CTX *mem_ctx,
 398                                           struct tevent_context *ev,
 399                                           struct files_struct *fsp)
 400 {
 401         struct tevent_req *req, *subreq;
 402         struct skel_fsync_state *state;
 403
 404         req = tevent_req_create(mem_ctx, &state, struct skel_fsync_state);
 405         if (req == NULL) {
 406                 return NULL;
 407         }
 408         subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
 409         if (tevent_req_nomem(subreq, req)) {
 410                 return tevent_req_post(req, ev);
 411         }
 412         tevent_req_set_callback(subreq, skel_fsync_done, req);
 413         return req;
 414 }
 415
 416 static void skel_fsync_done(struct tevent_req *subreq)
 417 {
 418         struct tevent_req *req =
 419             tevent_req_callback_data(subreq, struct tevent_req);
 420         struct skel_fsync_state *state =
 421             tevent_req_data(req, struct skel_fsync_state);
 422
 423         state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->vfs_aio_state);
 424         TALLOC_FREE(subreq);
 425         tevent_req_done(req);
 426 }
 427
 428 static int skel_fsync_recv(struct tevent_req *req,
 429                            struct vfs_aio_state *vfs_aio_state)
 430 {
 431         struct skel_fsync_state *state =
 432             tevent_req_data(req, struct skel_fsync_state);
 433
 434         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 435                 return -1;
 436         }
 437         *vfs_aio_state = state->vfs_aio_state;
 438         return state->ret;
 439 }
 440
 441 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 442 {
 443         return SMB_VFS_NEXT_STAT(handle, smb_fname);
 444 }
 445
 446 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 447                       SMB_STRUCT_STAT *sbuf)
 448 {
 449         return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
 450 }
 451
 452 static int skel_lstat(vfs_handle_struct *handle,
 453                       struct smb_filename *smb_fname)
 454 {
 455         return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
 456 }
 457
 458 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 459                                     struct files_struct *fsp,
 460                                     const SMB_STRUCT_STAT *sbuf)
 461 {
 462         return SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
 463 }
 464
 465 static int skel_unlink(vfs_handle_struct *handle,
 466                        const struct smb_filename *smb_fname)
 467 {
 468         return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 469 }
 470
 471 static int skel_chmod(vfs_handle_struct *handle,
 472                         const struct smb_filename *smb_fname,
 473                         mode_t mode)
 474 {
 475         return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
 476 }
 477
 478 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 479                        mode_t mode)
 480 {
 481         return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
 482 }
 483
 484 static int skel_chown(vfs_handle_struct *handle,
 485                         const struct smb_filename *smb_fname,
 486                         uid_t uid,
 487                         gid_t gid)
 488 {
 489         return SMB_VFS_NEXT_CHOWN(handle, smb_fname, uid, gid);
 490 }
 491
 492 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 493                        uid_t uid, gid_t gid)
 494 {
 495         return SMB_VFS_NEXT_FCHOWN(handle, fsp, uid, gid);
 496 }
 497
 498 static int skel_lchown(vfs_handle_struct *handle,
 499                         const struct smb_filename *smb_fname,
 500                         uid_t uid,
 501                         gid_t gid)
 502 {
 503         return SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
 504 }
 505
 506 static int skel_chdir(vfs_handle_struct *handle,
 507                         const struct smb_filename *smb_fname)
 508 {
 509         return SMB_VFS_NEXT_CHDIR(handle, smb_fname);
 510 }
 511
 512 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 513                                         TALLOC_CTX *ctx)
 514 {
 515         return SMB_VFS_NEXT_GETWD(handle, ctx);
 516 }
 517
 518 static int skel_ntimes(vfs_handle_struct *handle,
 519                        const struct smb_filename *smb_fname,
 520                        struct smb_file_time *ft)
 521 {
 522         return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
 523 }
 524
 525 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 526                           off_t offset)
 527 {
 528         return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
 529 }
 530
 531 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 532                           uint32_t mode, off_t offset, off_t len)
 533 {
 534         return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
 535 }
 536
 537 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 538                       off_t offset, off_t count, int type)
 539 {
 540         return SMB_VFS_NEXT_LOCK(handle, fsp, op, offset, count, type);
 541 }
 542
 543 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 544                              struct files_struct *fsp, uint32_t share_mode,
 545                              uint32_t access_mask)
 546 {
 547         return SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp, share_mode, access_mask);
 548 }
 549
 550 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 551                                struct files_struct *fsp, int leasetype)
 552 {
 553         return SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, leasetype);
 554 }
 555
 556 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 557                          off_t *poffset, off_t *pcount, int *ptype,
 558                          pid_t *ppid)
 559 {
 560         return SMB_VFS_NEXT_GETLOCK(handle, fsp, poffset, pcount, ptype, ppid);
 561 }
 562
 563 static int skel_symlinkat(vfs_handle_struct *handle,
 564                         const char *link_contents,
 565                         struct files_struct *dirfsp,
 566                         const struct smb_filename *new_smb_fname)
 567 {
 568         return SMB_VFS_NEXT_SYMLINKAT(handle,
 569                                 link_contents,
 570                                 dirfsp,
 571                                 new_smb_fname);
 572 }
 573
 574 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
 575                         files_struct *dirfsp,
 576                         const struct smb_filename *smb_fname,
 577                         char *buf,
 578                         size_t bufsiz)
 579 {
 580         return SMB_VFS_NEXT_READLINKAT(handle,
 581                         dirfsp,
 582                         smb_fname,
 583                         buf,
 584                         bufsiz);
 585 }
 586
 587 static int skel_linkat(vfs_handle_struct *handle,
 588                         files_struct *srcfsp,
 589                         const struct smb_filename *old_smb_fname,
 590                         files_struct *dstfsp,
 591                         const struct smb_filename *new_smb_fname,
 592                         int flags)
 593 {
 594         return SMB_VFS_NEXT_LINKAT(handle,
 595                         srcfsp,
 596                         old_smb_fname,
 597                         dstfsp,
 598                         new_smb_fname,
 599                         flags);
 600 }
 601
 602 static int skel_mknodat(vfs_handle_struct *handle,
 603                         files_struct *dirfsp,
 604                         const struct smb_filename *smb_fname,
 605                         mode_t mode,
 606                         SMB_DEV_T dev)
 607 {
 608         return SMB_VFS_NEXT_MKNODAT(handle,
 609                         dirfsp,
 610                         smb_fname,
 611                         mode,
 612                         dev);
 613 }
 614
 615 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 616                         TALLOC_CTX *ctx,
 617                         const struct smb_filename *smb_fname)
 618 {
 619         return SMB_VFS_NEXT_REALPATH(handle, ctx, smb_fname);
 620 }
 621
 622 static int skel_chflags(vfs_handle_struct *handle,
 623                         const struct smb_filename *smb_fname,
 624                         uint flags)
 625 {
 626         return SMB_VFS_NEXT_CHFLAGS(handle, smb_fname, flags);
 627 }
 628
 629 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 630                                           const SMB_STRUCT_STAT *sbuf)
 631 {
 632         return SMB_VFS_NEXT_FILE_ID_CREATE(handle, sbuf);
 633 }
 634
 635 static uint64_t skel_fs_file_id(vfs_handle_struct *handle,
 636                                 const SMB_STRUCT_STAT *sbuf)
 637 {
 638         return SMB_VFS_NEXT_FS_FILE_ID(handle, sbuf);
 639 }
 640
 641 struct skel_offload_read_state {
 642         struct vfs_handle_struct *handle;
 643         DATA_BLOB token;
 644 };
 645
 646 static void skel_offload_read_done(struct tevent_req *subreq);
 647
 648 static struct tevent_req *skel_offload_read_send(
 649         TALLOC_CTX *mem_ctx,
 650         struct tevent_context *ev,
 651         struct vfs_handle_struct *handle,
 652         struct files_struct *fsp,
 653         uint32_t fsctl,
 654         uint32_t ttl,
 655         off_t offset,
 656         size_t to_copy)
 657 {
 658         struct tevent_req *req = NULL;
 659         struct skel_offload_read_state *state = NULL;
 660         struct tevent_req *subreq = NULL;
 661
 662         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 663         if (req == NULL) {
 664                 return NULL;
 665         }
 666         *state = (struct skel_offload_read_state) {
 667                 .handle = handle,
 668         };
 669
 670         subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
 671                                                 fsctl, ttl, offset, to_copy);
 672         if (tevent_req_nomem(subreq, req)) {
 673                 return tevent_req_post(req, ev);
 674         }
 675         tevent_req_set_callback(subreq, skel_offload_read_done, req);
 676         return req;
 677 }
 678
 679 static void skel_offload_read_done(struct tevent_req *subreq)
 680 {
 681         struct tevent_req *req = tevent_req_callback_data(
 682                 subreq, struct tevent_req);
 683         struct skel_offload_read_state *state = tevent_req_data(
 684                 req, struct skel_offload_read_state);
 685         NTSTATUS status;
 686
 687         status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
 688                                                 state->handle,
 689                                                 state,
 690                                                 &state->token);
 691         TALLOC_FREE(subreq);
 692         if (tevent_req_nterror(req, status)) {
 693                 return;
 694         }
 695
 696         tevent_req_done(req);
 697         return;
 698 }
 699
 700 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 701                                        struct vfs_handle_struct *handle,
 702                                        TALLOC_CTX *mem_ctx,
 703                                        DATA_BLOB *_token)
 704 {
 705         struct skel_offload_read_state *state = tevent_req_data(
 706                 req, struct skel_offload_read_state);
 707         DATA_BLOB token;
 708         NTSTATUS status;
 709
 710         if (tevent_req_is_nterror(req, &status)) {
 711                 tevent_req_received(req);
 712                 return status;
 713         }
 714
 715         token = data_blob_talloc(mem_ctx,
 716                                  state->token.data,
 717                                  state->token.length);
 718
 719         tevent_req_received(req);
 720
 721         if (token.data == NULL) {
 722                 return NT_STATUS_NO_MEMORY;
 723         }
 724
 725         *_token = token;
 726         return NT_STATUS_OK;
 727 }
 728
 729 struct skel_offload_write_state {
 730         struct vfs_handle_struct *handle;
 731         off_t copied;
 732 };
 733 static void skel_offload_write_done(struct tevent_req *subreq);
 734
 735 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 736                                                TALLOC_CTX *mem_ctx,
 737                                                struct tevent_context *ev,
 738                                                uint32_t fsctl,
 739                                                DATA_BLOB *token,
 740                                                off_t transfer_offset,
 741                                                struct files_struct *dest_fsp,
 742                                                off_t dest_off,
 743                                                off_t num)
 744 {
 745         struct tevent_req *req;
 746         struct tevent_req *subreq;
 747         struct skel_offload_write_state *state;
 748
 749         req = tevent_req_create(mem_ctx, &state, struct skel_offload_write_state);
 750         if (req == NULL) {
 751                 return NULL;
 752         }
 753
 754         state->handle = handle;
 755         subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle, state, ev,
 756                                               fsctl, token, transfer_offset,
 757                                               dest_fsp, dest_off, num);
 758         if (tevent_req_nomem(subreq, req)) {
 759                 return tevent_req_post(req, ev);
 760         }
 761
 762         tevent_req_set_callback(subreq, skel_offload_write_done, req);
 763         return req;
 764 }
 765
 766 static void skel_offload_write_done(struct tevent_req *subreq)
 767 {
 768         struct tevent_req *req = tevent_req_callback_data(
 769                 subreq, struct tevent_req);
 770         struct skel_offload_write_state *state
 771                         = tevent_req_data(req, struct skel_offload_write_state);
 772         NTSTATUS status;
 773
 774         status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
 775                                               subreq,
 776                                               &state->copied);
 777         TALLOC_FREE(subreq);
 778         if (tevent_req_nterror(req, status)) {
 779                 return;
 780         }
 781         tevent_req_done(req);
 782 }
 783
 784 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 785                                      struct tevent_req *req,
 786                                      off_t *copied)
 787 {
 788         struct skel_offload_write_state *state
 789                         = tevent_req_data(req, struct skel_offload_write_state);
 790         NTSTATUS status;
 791
 792         *copied = state->copied;
 793         if (tevent_req_is_nterror(req, &status)) {
 794                 tevent_req_received(req);
 795                 return status;
 796         }
 797
 798         tevent_req_received(req);
 799         return NT_STATUS_OK;
 800 }
 801
 802 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 803                                      TALLOC_CTX *mem_ctx,
 804                                      struct files_struct *fsp,
 805                                      struct smb_filename *smb_fname,
 806                                      uint16_t *_compression_fmt)
 807 {
 808         return SMB_VFS_NEXT_GET_COMPRESSION(handle, mem_ctx, fsp, smb_fname,
 809                                             _compression_fmt);
 810 }
 811
 812 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 813                                      TALLOC_CTX *mem_ctx,
 814                                      struct files_struct *fsp,
 815                                      uint16_t compression_fmt)
 816 {
 817         return SMB_VFS_NEXT_SET_COMPRESSION(handle, mem_ctx, fsp,
 818                                             compression_fmt);
 819 }
 820
 821 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 822                                 struct files_struct *fsp,
 823                                 const struct smb_filename *smb_fname,
 824                                 TALLOC_CTX *mem_ctx,
 825                                 unsigned int *num_streams,
 826                                 struct stream_struct **streams)
 827 {
 828         return SMB_VFS_NEXT_STREAMINFO(handle,
 829                                 fsp,
 830                                 smb_fname,
 831                                 mem_ctx,
 832                                 num_streams,
 833                                 streams);
 834 }
 835
 836 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 837                                   const char *path,
 838                                   const char *name,
 839                                   TALLOC_CTX *mem_ctx, char **found_name)
 840 {
 841         return SMB_VFS_NEXT_GET_REAL_FILENAME(handle,
 842                                               path, name, mem_ctx, found_name);
 843 }
 844
 845 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 846                                 const struct smb_filename *smb_fname)
 847 {
 848         return SMB_VFS_NEXT_CONNECTPATH(handle, smb_fname);
 849 }
 850
 851 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 852                                       struct byte_range_lock *br_lck,
 853                                       struct lock_struct *plock)
 854 {
 855         return SMB_VFS_NEXT_BRL_LOCK_WINDOWS(handle, br_lck, plock);
 856 }
 857
 858 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 859                                     struct byte_range_lock *br_lck,
 860                                     const struct lock_struct *plock)
 861 {
 862         return SMB_VFS_NEXT_BRL_UNLOCK_WINDOWS(handle, br_lck, plock);
 863 }
 864
 865 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 866                                    struct files_struct *fsp,
 867                                    struct lock_struct *plock)
 868 {
 869         return SMB_VFS_NEXT_STRICT_LOCK_CHECK(handle, fsp, plock);
 870 }
 871
 872 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 873                                     const char *mapped_name,
 874                                     enum vfs_translate_direction direction,
 875                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 876 {
 877         return SMB_VFS_NEXT_TRANSLATE_NAME(handle, mapped_name, direction,
 878                                            mem_ctx, pmapped_name);
 879 }
 880
 881 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 882                            struct files_struct *fsp,
 883                            TALLOC_CTX *ctx,
 884                            uint32_t function,
 885                            uint16_t req_flags,  /* Needed for UNICODE ... */
 886                            const uint8_t *_in_data,
 887                            uint32_t in_len,
 888                            uint8_t ** _out_data,
 889                            uint32_t max_out_len, uint32_t *out_len)
 890 {
 891         return SMB_VFS_NEXT_FSCTL(handle,
 892                                   fsp,
 893                                   ctx,
 894                                   function,
 895                                   req_flags,
 896                                   _in_data,
 897                                   in_len, _out_data, max_out_len, out_len);
 898 }
 899
 900 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 901                                   const struct smb_filename *fname,
 902                                   TALLOC_CTX *mem_ctx,
 903                                   struct readdir_attr_data **pattr_data)
 904 {
 905         return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
 906 }
 907
 908 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 909                                 struct smb_filename *smb_fname,
 910                                 uint32_t *dosmode)
 911 {
 912         return SMB_VFS_NEXT_GET_DOS_ATTRIBUTES(handle,
 913                                 smb_fname,
 914                                 dosmode);
 915 }
 916
 917 struct skel_get_dos_attributes_state {
 918         struct vfs_aio_state aio_state;
 919         uint32_t dosmode;
 920 };
 921
 922 static void skel_get_dos_attributes_done(struct tevent_req *subreq);
 923
 924 static struct tevent_req *skel_get_dos_attributes_send(
 925                         TALLOC_CTX *mem_ctx,
 926                         struct tevent_context *ev,
 927                         struct vfs_handle_struct *handle,
 928                         files_struct *dir_fsp,
 929                         struct smb_filename *smb_fname)
 930 {
 931         struct tevent_req *req = NULL;
 932         struct skel_get_dos_attributes_state *state = NULL;
 933         struct tevent_req *subreq = NULL;
 934
 935         req = tevent_req_create(mem_ctx, &state,
 936                                 struct skel_get_dos_attributes_state);
 937         if (req == NULL) {
 938                 return NULL;
 939         }
 940
 941         subreq = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_SEND(mem_ctx,
 942                                                       ev,
 943                                                       handle,
 944                                                       dir_fsp,
 945                                                       smb_fname);
 946         if (tevent_req_nomem(subreq, req)) {
 947                 return tevent_req_post(req, ev);
 948         }
 949         tevent_req_set_callback(subreq, skel_get_dos_attributes_done, req);
 950
 951         return req;
 952 }
 953
 954 static void skel_get_dos_attributes_done(struct tevent_req *subreq)
 955 {
 956         struct tevent_req *req =
 957                 tevent_req_callback_data(subreq,
 958                 struct tevent_req);
 959         struct skel_get_dos_attributes_state *state =
 960                 tevent_req_data(req,
 961                 struct skel_get_dos_attributes_state);
 962         NTSTATUS status;
 963
 964         status = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_RECV(subreq,
 965                                                       &state->aio_state,
 966                                                       &state->dosmode);
 967         TALLOC_FREE(subreq);
 968         if (tevent_req_nterror(req, status)) {
 969                 return;
 970         }
 971
 972         tevent_req_done(req);
 973         return;
 974 }
 975
 976 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
 977                                              struct vfs_aio_state *aio_state,
 978                                              uint32_t *dosmode)
 979 {
 980         struct skel_get_dos_attributes_state *state =
 981                 tevent_req_data(req,
 982                 struct skel_get_dos_attributes_state);
 983         NTSTATUS status;
 984
 985         if (tevent_req_is_nterror(req, &status)) {
 986                 tevent_req_received(req);
 987                 return status;
 988         }
 989
 990         *aio_state = state->aio_state;
 991         *dosmode = state->dosmode;
 992         tevent_req_received(req);
 993         return NT_STATUS_OK;
 994 }
 995
 996 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
 997                                 struct files_struct *fsp,
 998                                 uint32_t *dosmode)
 999 {
1000         return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle,
1001                                 fsp,
1002                                 dosmode);
1003 }
1004
1005 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
1006                                 const struct smb_filename *smb_fname,
1007                                 uint32_t dosmode)
1008 {
1009         return SMB_VFS_NEXT_SET_DOS_ATTRIBUTES(handle,
1010                                 smb_fname,
1011                                 dosmode);
1012 }
1013
1014 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
1015                                 struct files_struct *fsp,
1016                                 uint32_t dosmode)
1017 {
1018         return SMB_VFS_NEXT_FSET_DOS_ATTRIBUTES(handle,
1019                                 fsp,
1020                                 dosmode);
1021 }
1022
1023 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1024                                  uint32_t security_info,
1025                                  TALLOC_CTX *mem_ctx,
1026                                  struct security_descriptor **ppdesc)
1027 {
1028         return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, mem_ctx,
1029                                         ppdesc);
1030 }
1031
1032 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
1033                                 const struct smb_filename *smb_fname,
1034                                 uint32_t security_info,
1035                                 TALLOC_CTX *mem_ctx,
1036                                 struct security_descriptor **ppdesc)
1037 {
1038         return SMB_VFS_NEXT_GET_NT_ACL(handle,
1039                                 smb_fname,
1040                                 security_info,
1041                                 mem_ctx,
1042                                 ppdesc);
1043 }
1044
1045 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1046                                  uint32_t security_info_sent,
1047                                  const struct security_descriptor *psd)
1048 {
1049         return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
1050 }
1051
1052 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
1053                                        const struct smb_filename *smb_fname,
1054                                        SMB_ACL_TYPE_T type,
1055                                        TALLOC_CTX *mem_ctx)
1056 {
1057         return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, smb_fname, type, mem_ctx);
1058 }
1059
1060 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
1061                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
1062 {
1063         return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
1064 }
1065
1066 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
1067                                 const struct smb_filename *smb_fname,
1068                                 TALLOC_CTX *mem_ctx,
1069                                 char **blob_description,
1070                                 DATA_BLOB *blob)
1071 {
1072         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, smb_fname, mem_ctx,
1073                                                   blob_description, blob);
1074 }
1075
1076 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1077                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
1078                                     char **blob_description, DATA_BLOB *blob)
1079 {
1080         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
1081                                                 blob_description, blob);
1082 }
1083
1084 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
1085                                 const struct smb_filename *smb_fname,
1086                                 SMB_ACL_TYPE_T acltype,
1087                                 SMB_ACL_T theacl)
1088 {
1089         return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, smb_fname,
1090                         acltype, theacl);
1091 }
1092
1093 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1094                                SMB_ACL_T theacl)
1095 {
1096         return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
1097 }
1098
1099 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
1100                                         const struct smb_filename *smb_fname)
1101 {
1102         return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, smb_fname);
1103 }
1104
1105 static ssize_t skel_getxattr(vfs_handle_struct *handle,
1106                                 const struct smb_filename *smb_fname,
1107                                 const char *name,
1108                                 void *value,
1109                                 size_t size)
1110 {
1111         return SMB_VFS_NEXT_GETXATTR(handle, smb_fname, name, value, size);
1112 }
1113
1114 struct skel_getxattrat_state {
1115         struct vfs_aio_state aio_state;
1116         ssize_t xattr_size;
1117         uint8_t *xattr_value;
1118 };
1119
1120 static void skel_getxattrat_done(struct tevent_req *subreq);
1121
1122 static struct tevent_req *skel_getxattrat_send(
1123                         TALLOC_CTX *mem_ctx,
1124                         struct tevent_context *ev,
1125                         struct vfs_handle_struct *handle,
1126                         files_struct *dir_fsp,
1127                         const struct smb_filename *smb_fname,
1128                         const char *xattr_name,
1129                         size_t alloc_hint)
1130 {
1131         struct tevent_req *req = NULL;
1132         struct skel_getxattrat_state *state = NULL;
1133         struct tevent_req *subreq = NULL;
1134
1135         req = tevent_req_create(mem_ctx, &state,
1136                                 struct skel_getxattrat_state);
1137         if (req == NULL) {
1138                 return NULL;
1139         }
1140
1141         subreq = SMB_VFS_NEXT_GETXATTRAT_SEND(state,
1142                                               ev,
1143                                               handle,
1144                                               dir_fsp,
1145                                               smb_fname,
1146                                               xattr_name,
1147                                               alloc_hint);
1148         if (tevent_req_nomem(subreq, req)) {
1149                 return tevent_req_post(req, ev);
1150         }
1151         tevent_req_set_callback(subreq, skel_getxattrat_done, req);
1152
1153         return req;
1154 }
1155
1156 static void skel_getxattrat_done(struct tevent_req *subreq)
1157 {
1158         struct tevent_req *req = tevent_req_callback_data(
1159                 subreq, struct tevent_req);
1160         struct skel_getxattrat_state *state = tevent_req_data(
1161                 req, struct skel_getxattrat_state);
1162
1163         state->xattr_size = SMB_VFS_NEXT_GETXATTRAT_RECV(subreq,
1164                                                          &state->aio_state,
1165                                                          state,
1166                                                          &state->xattr_value);
1167         TALLOC_FREE(subreq);
1168         if (state->xattr_size == -1) {
1169                 tevent_req_error(req, state->aio_state.error);
1170                 return;
1171         }
1172
1173         tevent_req_done(req);
1174 }
1175
1176 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
1177                                     struct vfs_aio_state *aio_state,
1178                                     TALLOC_CTX *mem_ctx,
1179                                     uint8_t **xattr_value)
1180 {
1181         struct skel_getxattrat_state *state = tevent_req_data(
1182                 req, struct skel_getxattrat_state);
1183         ssize_t xattr_size;
1184
1185         if (tevent_req_is_unix_error(req, &aio_state->error)) {
1186                 tevent_req_received(req);
1187                 return -1;
1188         }
1189
1190         *aio_state = state->aio_state;
1191         xattr_size = state->xattr_size;
1192         if (xattr_value != NULL) {
1193                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
1194         }
1195
1196         tevent_req_received(req);
1197         return xattr_size;
1198 }
1199
1200 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
1201                               struct files_struct *fsp, const char *name,
1202                               void *value, size_t size)
1203 {
1204         return SMB_VFS_NEXT_FGETXATTR(handle, fsp, name, value, size);
1205 }
1206
1207 static ssize_t skel_listxattr(vfs_handle_struct *handle,
1208                                 const struct smb_filename *smb_fname,
1209                                 char *list,
1210                                 size_t size)
1211 {
1212         return SMB_VFS_NEXT_LISTXATTR(handle, smb_fname, list, size);
1213 }
1214
1215 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
1216                                struct files_struct *fsp, char *list,
1217                                size_t size)
1218 {
1219         return SMB_VFS_NEXT_FLISTXATTR(handle, fsp, list, size);
1220 }
1221
1222 static int skel_removexattr(vfs_handle_struct *handle,
1223                         const struct smb_filename *smb_fname,
1224                         const char *name)
1225 {
1226         return SMB_VFS_NEXT_REMOVEXATTR(handle, smb_fname, name);
1227 }
1228
1229 static int skel_fremovexattr(vfs_handle_struct *handle,
1230                              struct files_struct *fsp, const char *name)
1231 {
1232         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
1233 }
1234
1235 static int skel_setxattr(vfs_handle_struct *handle,
1236                         const struct smb_filename *smb_fname,
1237                         const char *name,
1238                         const void *value,
1239                         size_t size,
1240                         int flags)
1241 {
1242         return SMB_VFS_NEXT_SETXATTR(handle, smb_fname,
1243                         name, value, size, flags);
1244 }
1245
1246 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1247                           const char *name, const void *value, size_t size,
1248                           int flags)
1249 {
1250         return SMB_VFS_NEXT_FSETXATTR(handle, fsp, name, value, size, flags);
1251 }
1252
1253 static bool skel_aio_force(struct vfs_handle_struct *handle,
1254                            struct files_struct *fsp)
1255 {
1256         return SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
1257 }
1258
1259 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
1260                                 struct smb_filename *file,
1261                                 struct security_acl *sacl,
1262                                 uint32_t access_requested,
1263                                 uint32_t access_denied)
1264 {
1265         return SMB_VFS_NEXT_AUDIT_FILE(handle,
1266                                        file,
1267                                        sacl,
1268                                        access_requested,
1269                                        access_denied);
1270 }
1271
1272 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
1273                                     struct files_struct *fsp,
1274                                     TALLOC_CTX *mem_ctx,
1275                                     DATA_BLOB *cookie)
1276 {
1277         return SMB_VFS_NEXT_DURABLE_COOKIE(handle,
1278                                            fsp,
1279                                            mem_ctx,
1280                                            cookie);
1281 }
1282
1283 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1284                                         struct files_struct *fsp,
1285                                         const DATA_BLOB old_cookie,
1286                                         TALLOC_CTX *mem_ctx,
1287                                         DATA_BLOB *new_cookie)
1288 {
1289         return SMB_VFS_NEXT_DURABLE_DISCONNECT(handle,
1290                                                fsp,
1291                                                old_cookie,
1292                                                mem_ctx,
1293                                                new_cookie);
1294 }
1295
1296 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1297                                        struct smb_request *smb1req,
1298                                        struct smbXsrv_open *op,
1299                                        const DATA_BLOB old_cookie,
1300                                        TALLOC_CTX *mem_ctx,
1301                                        struct files_struct **fsp,
1302                                        DATA_BLOB *new_cookie)
1303 {
1304         return SMB_VFS_NEXT_DURABLE_RECONNECT(handle,
1305                                               smb1req,
1306                                               op,
1307                                               old_cookie,
1308                                               mem_ctx,
1309                                               fsp,
1310                                               new_cookie);
1311 }
1312
1313 /* VFS operations structure */
1314
1315 static struct vfs_fn_pointers skel_transparent_fns = {
1316         /* Disk operations */
1317
1318         .connect_fn = skel_connect,
1319         .disconnect_fn = skel_disconnect,
1320         .disk_free_fn = skel_disk_free,
1321         .get_quota_fn = skel_get_quota,
1322         .set_quota_fn = skel_set_quota,
1323         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1324         .statvfs_fn = skel_statvfs,
1325         .fs_capabilities_fn = skel_fs_capabilities,
1326         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1327         .snap_check_path_fn = skel_snap_check_path,
1328         .snap_create_fn = skel_snap_create,
1329         .snap_delete_fn = skel_snap_delete,
1330
1331         /* Directory operations */
1332
1333         .opendir_fn = skel_opendir,
1334         .fdopendir_fn = skel_fdopendir,
1335         .readdir_fn = skel_readdir,
1336         .seekdir_fn = skel_seekdir,
1337         .telldir_fn = skel_telldir,
1338         .rewind_dir_fn = skel_rewind_dir,
1339         .mkdirat_fn = skel_mkdirat,
1340         .rmdir_fn = skel_rmdir,
1341         .closedir_fn = skel_closedir,
1342
1343         /* File operations */
1344
1345         .open_fn = skel_open,
1346         .create_file_fn = skel_create_file,
1347         .close_fn = skel_close_fn,
1348         .pread_fn = skel_pread,
1349         .pread_send_fn = skel_pread_send,
1350         .pread_recv_fn = skel_pread_recv,
1351         .pwrite_fn = skel_pwrite,
1352         .pwrite_send_fn = skel_pwrite_send,
1353         .pwrite_recv_fn = skel_pwrite_recv,
1354         .lseek_fn = skel_lseek,
1355         .sendfile_fn = skel_sendfile,
1356         .recvfile_fn = skel_recvfile,
1357         .renameat_fn = skel_renameat,
1358         .fsync_send_fn = skel_fsync_send,
1359         .fsync_recv_fn = skel_fsync_recv,
1360         .stat_fn = skel_stat,
1361         .fstat_fn = skel_fstat,
1362         .lstat_fn = skel_lstat,
1363         .get_alloc_size_fn = skel_get_alloc_size,
1364         .unlink_fn = skel_unlink,
1365         .chmod_fn = skel_chmod,
1366         .fchmod_fn = skel_fchmod,
1367         .chown_fn = skel_chown,
1368         .fchown_fn = skel_fchown,
1369         .lchown_fn = skel_lchown,
1370         .chdir_fn = skel_chdir,
1371         .getwd_fn = skel_getwd,
1372         .ntimes_fn = skel_ntimes,
1373         .ftruncate_fn = skel_ftruncate,
1374         .fallocate_fn = skel_fallocate,
1375         .lock_fn = skel_lock,
1376         .kernel_flock_fn = skel_kernel_flock,
1377         .linux_setlease_fn = skel_linux_setlease,
1378         .getlock_fn = skel_getlock,
1379         .symlinkat_fn = skel_symlinkat,
1380         .readlinkat_fn = skel_vfs_readlinkat,
1381         .linkat_fn = skel_linkat,
1382         .mknodat_fn = skel_mknodat,
1383         .realpath_fn = skel_realpath,
1384         .chflags_fn = skel_chflags,
1385         .file_id_create_fn = skel_file_id_create,
1386         .fs_file_id_fn = skel_fs_file_id,
1387         .offload_read_send_fn = skel_offload_read_send,
1388         .offload_read_recv_fn = skel_offload_read_recv,
1389         .offload_write_send_fn = skel_offload_write_send,
1390         .offload_write_recv_fn = skel_offload_write_recv,
1391         .get_compression_fn = skel_get_compression,
1392         .set_compression_fn = skel_set_compression,
1393
1394         .streaminfo_fn = skel_streaminfo,
1395         .get_real_filename_fn = skel_get_real_filename,
1396         .connectpath_fn = skel_connectpath,
1397         .brl_lock_windows_fn = skel_brl_lock_windows,
1398         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1399         .strict_lock_check_fn = skel_strict_lock_check,
1400         .translate_name_fn = skel_translate_name,
1401         .fsctl_fn = skel_fsctl,
1402         .readdir_attr_fn = skel_readdir_attr,
1403         .audit_file_fn = skel_audit_file,
1404
1405         /* DOS attributes. */
1406         .get_dos_attributes_fn = skel_get_dos_attributes,
1407         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1408         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1409         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1410         .set_dos_attributes_fn = skel_set_dos_attributes,
1411         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1412
1413         /* NT ACL operations. */
1414
1415         .fget_nt_acl_fn = skel_fget_nt_acl,
1416         .get_nt_acl_fn = skel_get_nt_acl,
1417         .fset_nt_acl_fn = skel_fset_nt_acl,
1418
1419         /* POSIX ACL operations. */
1420
1421         .sys_acl_get_file_fn = skel_sys_acl_get_file,
1422         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1423         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
1424         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1425         .sys_acl_set_file_fn = skel_sys_acl_set_file,
1426         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1427         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1428
1429         /* EA operations. */
1430         .getxattr_fn = skel_getxattr,
1431         .getxattrat_send_fn = skel_getxattrat_send,
1432         .getxattrat_recv_fn = skel_getxattrat_recv,
1433         .fgetxattr_fn = skel_fgetxattr,
1434         .listxattr_fn = skel_listxattr,
1435         .flistxattr_fn = skel_flistxattr,
1436         .removexattr_fn = skel_removexattr,
1437         .fremovexattr_fn = skel_fremovexattr,
1438         .setxattr_fn = skel_setxattr,
1439         .fsetxattr_fn = skel_fsetxattr,
1440
1441         /* aio operations */
1442         .aio_force_fn = skel_aio_force,
1443
1444         /* durable handle operations */
1445         .durable_cookie_fn = skel_durable_cookie,
1446         .durable_disconnect_fn = skel_durable_disconnect,
1447         .durable_reconnect_fn = skel_durable_reconnect,
1448 };
1449
1450 static_decl_vfs;
1451 NTSTATUS vfs_skel_transparent_init(TALLOC_CTX *ctx)
1452 {
1453         /*
1454          * smb_vfs_assert_all_fns() is only needed in
1455          * order to have a complete example.
1456          *
1457          * A transparent vfs module typically don't
1458          * need to implement every calls.
1459          */
1460         smb_vfs_assert_all_fns(&skel_transparent_fns, "skel_transparent");
1461         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_transparent",
1462                                 &skel_transparent_fns);
1463 }