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_mkdir(vfs_handle_struct *handle,
 168                 const struct smb_filename *smb_fname,
 169                 mode_t mode)
 170 {
 171         return SMB_VFS_NEXT_MKDIR(handle, smb_fname, mode);
 172 }
 173
 174 static int skel_rmdir(vfs_handle_struct *handle,
 175                 const struct smb_filename *smb_fname)
 176 {
 177         return SMB_VFS_NEXT_RMDIR(handle, smb_fname);
 178 }
 179
 180 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 181 {
 182         return SMB_VFS_NEXT_CLOSEDIR(handle, dir);
 183 }
 184
 185 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 186                      files_struct *fsp, int flags, mode_t mode)
 187 {
 188         return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
 189 }
 190
 191 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 192                                  struct smb_request *req,
 193                                  uint16_t root_dir_fid,
 194                                  struct smb_filename *smb_fname,
 195                                  uint32_t access_mask,
 196                                  uint32_t share_access,
 197                                  uint32_t create_disposition,
 198                                  uint32_t create_options,
 199                                  uint32_t file_attributes,
 200                                  uint32_t oplock_request,
 201                                  struct smb2_lease *lease,
 202                                  uint64_t allocation_size,
 203                                  uint32_t private_flags,
 204                                  struct security_descriptor *sd,
 205                                  struct ea_list *ea_list,
 206                                  files_struct ** result, int *pinfo,
 207                                  const struct smb2_create_blobs *in_context_blobs,
 208                                  struct smb2_create_blobs *out_context_blobs)
 209 {
 210         return SMB_VFS_NEXT_CREATE_FILE(handle,
 211                                         req,
 212                                         root_dir_fid,
 213                                         smb_fname,
 214                                         access_mask,
 215                                         share_access,
 216                                         create_disposition,
 217                                         create_options,
 218                                         file_attributes,
 219                                         oplock_request,
 220                                         lease,
 221                                         allocation_size,
 222                                         private_flags,
 223                                         sd, ea_list, result, pinfo,
 224                                         in_context_blobs, out_context_blobs);
 225 }
 226
 227 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 228 {
 229         return SMB_VFS_NEXT_CLOSE(handle, fsp);
 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         return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
 236 }
 237
 238 struct skel_pread_state {
 239         ssize_t ret;
 240         struct vfs_aio_state vfs_aio_state;
 241 };
 242
 243 static void skel_pread_done(struct tevent_req *subreq);
 244
 245 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 246                                           TALLOC_CTX *mem_ctx,
 247                                           struct tevent_context *ev,
 248                                           struct files_struct *fsp,
 249                                           void *data, size_t n, off_t offset)
 250 {
 251         struct tevent_req *req, *subreq;
 252         struct skel_pread_state *state;
 253
 254         req = tevent_req_create(mem_ctx, &state, struct skel_pread_state);
 255         if (req == NULL) {
 256                 return NULL;
 257         }
 258         subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
 259                                          n, offset);
 260         if (tevent_req_nomem(subreq, req)) {
 261                 return tevent_req_post(req, ev);
 262         }
 263         tevent_req_set_callback(subreq, skel_pread_done, req);
 264         return req;
 265 }
 266
 267 static void skel_pread_done(struct tevent_req *subreq)
 268 {
 269         struct tevent_req *req =
 270             tevent_req_callback_data(subreq, struct tevent_req);
 271         struct skel_pread_state *state =
 272             tevent_req_data(req, struct skel_pread_state);
 273
 274         state->ret = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
 275         TALLOC_FREE(subreq);
 276         tevent_req_done(req);
 277 }
 278
 279 static ssize_t skel_pread_recv(struct tevent_req *req,
 280                                struct vfs_aio_state *vfs_aio_state)
 281 {
 282         struct skel_pread_state *state =
 283             tevent_req_data(req, struct skel_pread_state);
 284
 285         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 286                 return -1;
 287         }
 288         *vfs_aio_state = state->vfs_aio_state;
 289         return state->ret;
 290 }
 291
 292 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 293                            const void *data, size_t n, off_t offset)
 294 {
 295         return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
 296 }
 297
 298 struct skel_pwrite_state {
 299         ssize_t ret;
 300         struct vfs_aio_state vfs_aio_state;
 301 };
 302
 303 static void skel_pwrite_done(struct tevent_req *subreq);
 304
 305 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 306                                            TALLOC_CTX *mem_ctx,
 307                                            struct tevent_context *ev,
 308                                            struct files_struct *fsp,
 309                                            const void *data,
 310                                            size_t n, off_t offset)
 311 {
 312         struct tevent_req *req, *subreq;
 313         struct skel_pwrite_state *state;
 314
 315         req = tevent_req_create(mem_ctx, &state, struct skel_pwrite_state);
 316         if (req == NULL) {
 317                 return NULL;
 318         }
 319         subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
 320                                           n, offset);
 321         if (tevent_req_nomem(subreq, req)) {
 322                 return tevent_req_post(req, ev);
 323         }
 324         tevent_req_set_callback(subreq, skel_pwrite_done, req);
 325         return req;
 326 }
 327
 328 static void skel_pwrite_done(struct tevent_req *subreq)
 329 {
 330         struct tevent_req *req =
 331             tevent_req_callback_data(subreq, struct tevent_req);
 332         struct skel_pwrite_state *state =
 333             tevent_req_data(req, struct skel_pwrite_state);
 334
 335         state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
 336         TALLOC_FREE(subreq);
 337         tevent_req_done(req);
 338 }
 339
 340 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 341                                 struct vfs_aio_state *vfs_aio_state)
 342 {
 343         struct skel_pwrite_state *state =
 344             tevent_req_data(req, struct skel_pwrite_state);
 345
 346         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 347                 return -1;
 348         }
 349         *vfs_aio_state = state->vfs_aio_state;
 350         return state->ret;
 351 }
 352
 353 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 354                         off_t offset, int whence)
 355 {
 356         return SMB_VFS_NEXT_LSEEK(handle, fsp, offset, whence);
 357 }
 358
 359 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 360                              files_struct *fromfsp, const DATA_BLOB *hdr,
 361                              off_t offset, size_t n)
 362 {
 363         return SMB_VFS_NEXT_SENDFILE(handle, tofd, fromfsp, hdr, offset, n);
 364 }
 365
 366 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 367                              files_struct *tofsp, off_t offset, size_t n)
 368 {
 369         return SMB_VFS_NEXT_RECVFILE(handle, fromfd, tofsp, offset, n);
 370 }
 371
 372 static int skel_rename(vfs_handle_struct *handle,
 373                        const struct smb_filename *smb_fname_src,
 374                        const struct smb_filename *smb_fname_dst)
 375 {
 376         return SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
 377 }
 378
 379 struct skel_fsync_state {
 380         int ret;
 381         struct vfs_aio_state vfs_aio_state;
 382 };
 383
 384 static void skel_fsync_done(struct tevent_req *subreq);
 385
 386 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 387                                           TALLOC_CTX *mem_ctx,
 388                                           struct tevent_context *ev,
 389                                           struct files_struct *fsp)
 390 {
 391         struct tevent_req *req, *subreq;
 392         struct skel_fsync_state *state;
 393
 394         req = tevent_req_create(mem_ctx, &state, struct skel_fsync_state);
 395         if (req == NULL) {
 396                 return NULL;
 397         }
 398         subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
 399         if (tevent_req_nomem(subreq, req)) {
 400                 return tevent_req_post(req, ev);
 401         }
 402         tevent_req_set_callback(subreq, skel_fsync_done, req);
 403         return req;
 404 }
 405
 406 static void skel_fsync_done(struct tevent_req *subreq)
 407 {
 408         struct tevent_req *req =
 409             tevent_req_callback_data(subreq, struct tevent_req);
 410         struct skel_fsync_state *state =
 411             tevent_req_data(req, struct skel_fsync_state);
 412
 413         state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->vfs_aio_state);
 414         TALLOC_FREE(subreq);
 415         tevent_req_done(req);
 416 }
 417
 418 static int skel_fsync_recv(struct tevent_req *req,
 419                            struct vfs_aio_state *vfs_aio_state)
 420 {
 421         struct skel_fsync_state *state =
 422             tevent_req_data(req, struct skel_fsync_state);
 423
 424         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 425                 return -1;
 426         }
 427         *vfs_aio_state = state->vfs_aio_state;
 428         return state->ret;
 429 }
 430
 431 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 432 {
 433         return SMB_VFS_NEXT_STAT(handle, smb_fname);
 434 }
 435
 436 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 437                       SMB_STRUCT_STAT *sbuf)
 438 {
 439         return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
 440 }
 441
 442 static int skel_lstat(vfs_handle_struct *handle,
 443                       struct smb_filename *smb_fname)
 444 {
 445         return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
 446 }
 447
 448 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 449                                     struct files_struct *fsp,
 450                                     const SMB_STRUCT_STAT *sbuf)
 451 {
 452         return SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
 453 }
 454
 455 static int skel_unlink(vfs_handle_struct *handle,
 456                        const struct smb_filename *smb_fname)
 457 {
 458         return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 459 }
 460
 461 static int skel_chmod(vfs_handle_struct *handle,
 462                         const struct smb_filename *smb_fname,
 463                         mode_t mode)
 464 {
 465         return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
 466 }
 467
 468 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 469                        mode_t mode)
 470 {
 471         return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
 472 }
 473
 474 static int skel_chown(vfs_handle_struct *handle,
 475                         const struct smb_filename *smb_fname,
 476                         uid_t uid,
 477                         gid_t gid)
 478 {
 479         return SMB_VFS_NEXT_CHOWN(handle, smb_fname, uid, gid);
 480 }
 481
 482 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 483                        uid_t uid, gid_t gid)
 484 {
 485         return SMB_VFS_NEXT_FCHOWN(handle, fsp, uid, gid);
 486 }
 487
 488 static int skel_lchown(vfs_handle_struct *handle,
 489                         const struct smb_filename *smb_fname,
 490                         uid_t uid,
 491                         gid_t gid)
 492 {
 493         return SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
 494 }
 495
 496 static int skel_chdir(vfs_handle_struct *handle,
 497                         const struct smb_filename *smb_fname)
 498 {
 499         return SMB_VFS_NEXT_CHDIR(handle, smb_fname);
 500 }
 501
 502 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 503                                         TALLOC_CTX *ctx)
 504 {
 505         return SMB_VFS_NEXT_GETWD(handle, ctx);
 506 }
 507
 508 static int skel_ntimes(vfs_handle_struct *handle,
 509                        const struct smb_filename *smb_fname,
 510                        struct smb_file_time *ft)
 511 {
 512         return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
 513 }
 514
 515 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 516                           off_t offset)
 517 {
 518         return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
 519 }
 520
 521 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 522                           uint32_t mode, off_t offset, off_t len)
 523 {
 524         return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
 525 }
 526
 527 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 528                       off_t offset, off_t count, int type)
 529 {
 530         return SMB_VFS_NEXT_LOCK(handle, fsp, op, offset, count, type);
 531 }
 532
 533 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 534                              struct files_struct *fsp, uint32_t share_mode,
 535                              uint32_t access_mask)
 536 {
 537         return SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp, share_mode, access_mask);
 538 }
 539
 540 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 541                                struct files_struct *fsp, int leasetype)
 542 {
 543         return SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, leasetype);
 544 }
 545
 546 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 547                          off_t *poffset, off_t *pcount, int *ptype,
 548                          pid_t *ppid)
 549 {
 550         return SMB_VFS_NEXT_GETLOCK(handle, fsp, poffset, pcount, ptype, ppid);
 551 }
 552
 553 static int skel_symlink(vfs_handle_struct *handle,
 554                         const char *link_contents,
 555                         const struct smb_filename *new_smb_fname)
 556 {
 557         return SMB_VFS_NEXT_SYMLINK(handle, link_contents, new_smb_fname);
 558 }
 559
 560 static int skel_vfs_readlink(vfs_handle_struct *handle,
 561                         const struct smb_filename *smb_fname,
 562                         char *buf,
 563                         size_t bufsiz)
 564 {
 565         return SMB_VFS_NEXT_READLINK(handle, smb_fname, buf, bufsiz);
 566 }
 567
 568 static int skel_link(vfs_handle_struct *handle,
 569                         const struct smb_filename *old_smb_fname,
 570                         const struct smb_filename *new_smb_fname)
 571 {
 572         return SMB_VFS_NEXT_LINK(handle, old_smb_fname, new_smb_fname);
 573 }
 574
 575 static int skel_mknod(vfs_handle_struct *handle,
 576                         const struct smb_filename *smb_fname,
 577                         mode_t mode,
 578                         SMB_DEV_T dev)
 579 {
 580         return SMB_VFS_NEXT_MKNOD(handle, smb_fname, mode, dev);
 581 }
 582
 583 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 584                         TALLOC_CTX *ctx,
 585                         const struct smb_filename *smb_fname)
 586 {
 587         return SMB_VFS_NEXT_REALPATH(handle, ctx, smb_fname);
 588 }
 589
 590 static int skel_chflags(vfs_handle_struct *handle,
 591                         const struct smb_filename *smb_fname,
 592                         uint flags)
 593 {
 594         return SMB_VFS_NEXT_CHFLAGS(handle, smb_fname, flags);
 595 }
 596
 597 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 598                                           const SMB_STRUCT_STAT *sbuf)
 599 {
 600         return SMB_VFS_NEXT_FILE_ID_CREATE(handle, sbuf);
 601 }
 602
 603 struct skel_offload_read_state {
 604         struct vfs_handle_struct *handle;
 605         DATA_BLOB token;
 606 };
 607
 608 static void skel_offload_read_done(struct tevent_req *subreq);
 609
 610 static struct tevent_req *skel_offload_read_send(
 611         TALLOC_CTX *mem_ctx,
 612         struct tevent_context *ev,
 613         struct vfs_handle_struct *handle,
 614         struct files_struct *fsp,
 615         uint32_t fsctl,
 616         uint32_t ttl,
 617         off_t offset,
 618         size_t to_copy)
 619 {
 620         struct tevent_req *req = NULL;
 621         struct skel_offload_read_state *state = NULL;
 622         struct tevent_req *subreq = NULL;
 623
 624         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 625         if (req == NULL) {
 626                 return NULL;
 627         }
 628         *state = (struct skel_offload_read_state) {
 629                 .handle = handle,
 630         };
 631
 632         subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
 633                                                 fsctl, ttl, offset, to_copy);
 634         if (tevent_req_nomem(subreq, req)) {
 635                 return tevent_req_post(req, ev);
 636         }
 637         tevent_req_set_callback(subreq, skel_offload_read_done, req);
 638         return req;
 639 }
 640
 641 static void skel_offload_read_done(struct tevent_req *subreq)
 642 {
 643         struct tevent_req *req = tevent_req_callback_data(
 644                 subreq, struct tevent_req);
 645         struct skel_offload_read_state *state = tevent_req_data(
 646                 req, struct skel_offload_read_state);
 647         NTSTATUS status;
 648
 649         status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
 650                                                 state->handle,
 651                                                 state,
 652                                                 &state->token);
 653         TALLOC_FREE(subreq);
 654         if (tevent_req_nterror(req, status)) {
 655                 return;
 656         }
 657
 658         tevent_req_done(req);
 659         return;
 660 }
 661
 662 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 663                                        struct vfs_handle_struct *handle,
 664                                        TALLOC_CTX *mem_ctx,
 665                                        DATA_BLOB *_token)
 666 {
 667         struct skel_offload_read_state *state = tevent_req_data(
 668                 req, struct skel_offload_read_state);
 669         DATA_BLOB token;
 670         NTSTATUS status;
 671
 672         if (tevent_req_is_nterror(req, &status)) {
 673                 tevent_req_received(req);
 674                 return status;
 675         }
 676
 677         token = data_blob_talloc(mem_ctx,
 678                                  state->token.data,
 679                                  state->token.length);
 680
 681         tevent_req_received(req);
 682
 683         if (token.data == NULL) {
 684                 return NT_STATUS_NO_MEMORY;
 685         }
 686
 687         *_token = token;
 688         return NT_STATUS_OK;
 689 }
 690
 691 struct skel_offload_write_state {
 692         struct vfs_handle_struct *handle;
 693         off_t copied;
 694 };
 695 static void skel_offload_write_done(struct tevent_req *subreq);
 696
 697 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 698                                                TALLOC_CTX *mem_ctx,
 699                                                struct tevent_context *ev,
 700                                                uint32_t fsctl,
 701                                                DATA_BLOB *token,
 702                                                off_t transfer_offset,
 703                                                struct files_struct *dest_fsp,
 704                                                off_t dest_off,
 705                                                off_t num)
 706 {
 707         struct tevent_req *req;
 708         struct tevent_req *subreq;
 709         struct skel_offload_write_state *state;
 710
 711         req = tevent_req_create(mem_ctx, &state, struct skel_offload_write_state);
 712         if (req == NULL) {
 713                 return NULL;
 714         }
 715
 716         state->handle = handle;
 717         subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle, state, ev,
 718                                               fsctl, token, transfer_offset,
 719                                               dest_fsp, dest_off, num);
 720         if (tevent_req_nomem(subreq, req)) {
 721                 return tevent_req_post(req, ev);
 722         }
 723
 724         tevent_req_set_callback(subreq, skel_offload_write_done, req);
 725         return req;
 726 }
 727
 728 static void skel_offload_write_done(struct tevent_req *subreq)
 729 {
 730         struct tevent_req *req = tevent_req_callback_data(
 731                 subreq, struct tevent_req);
 732         struct skel_offload_write_state *state
 733                         = tevent_req_data(req, struct skel_offload_write_state);
 734         NTSTATUS status;
 735
 736         status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
 737                                               subreq,
 738                                               &state->copied);
 739         TALLOC_FREE(subreq);
 740         if (tevent_req_nterror(req, status)) {
 741                 return;
 742         }
 743         tevent_req_done(req);
 744 }
 745
 746 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 747                                      struct tevent_req *req,
 748                                      off_t *copied)
 749 {
 750         struct skel_offload_write_state *state
 751                         = tevent_req_data(req, struct skel_offload_write_state);
 752         NTSTATUS status;
 753
 754         *copied = state->copied;
 755         if (tevent_req_is_nterror(req, &status)) {
 756                 tevent_req_received(req);
 757                 return status;
 758         }
 759
 760         tevent_req_received(req);
 761         return NT_STATUS_OK;
 762 }
 763
 764 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 765                                      TALLOC_CTX *mem_ctx,
 766                                      struct files_struct *fsp,
 767                                      struct smb_filename *smb_fname,
 768                                      uint16_t *_compression_fmt)
 769 {
 770         return SMB_VFS_NEXT_GET_COMPRESSION(handle, mem_ctx, fsp, smb_fname,
 771                                             _compression_fmt);
 772 }
 773
 774 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 775                                      TALLOC_CTX *mem_ctx,
 776                                      struct files_struct *fsp,
 777                                      uint16_t compression_fmt)
 778 {
 779         return SMB_VFS_NEXT_SET_COMPRESSION(handle, mem_ctx, fsp,
 780                                             compression_fmt);
 781 }
 782
 783 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 784                                 struct files_struct *fsp,
 785                                 const struct smb_filename *smb_fname,
 786                                 TALLOC_CTX *mem_ctx,
 787                                 unsigned int *num_streams,
 788                                 struct stream_struct **streams)
 789 {
 790         return SMB_VFS_NEXT_STREAMINFO(handle,
 791                                 fsp,
 792                                 smb_fname,
 793                                 mem_ctx,
 794                                 num_streams,
 795                                 streams);
 796 }
 797
 798 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 799                                   const char *path,
 800                                   const char *name,
 801                                   TALLOC_CTX *mem_ctx, char **found_name)
 802 {
 803         return SMB_VFS_NEXT_GET_REAL_FILENAME(handle,
 804                                               path, name, mem_ctx, found_name);
 805 }
 806
 807 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 808                                 const struct smb_filename *smb_fname)
 809 {
 810         return SMB_VFS_NEXT_CONNECTPATH(handle, smb_fname);
 811 }
 812
 813 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 814                                       struct byte_range_lock *br_lck,
 815                                       struct lock_struct *plock,
 816                                       bool blocking_lock)
 817 {
 818         return SMB_VFS_NEXT_BRL_LOCK_WINDOWS(handle,
 819                                              br_lck, plock, blocking_lock);
 820 }
 821
 822 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 823                                     struct messaging_context *msg_ctx,
 824                                     struct byte_range_lock *br_lck,
 825                                     const struct lock_struct *plock)
 826 {
 827         return SMB_VFS_NEXT_BRL_UNLOCK_WINDOWS(handle, msg_ctx, br_lck, plock);
 828 }
 829
 830 static bool skel_brl_cancel_windows(struct vfs_handle_struct *handle,
 831                                     struct byte_range_lock *br_lck,
 832                                     struct lock_struct *plock)
 833 {
 834         return SMB_VFS_NEXT_BRL_CANCEL_WINDOWS(handle, br_lck, plock);
 835 }
 836
 837 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 838                                    struct files_struct *fsp,
 839                                    struct lock_struct *plock)
 840 {
 841         return SMB_VFS_NEXT_STRICT_LOCK_CHECK(handle, fsp, plock);
 842 }
 843
 844 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 845                                     const char *mapped_name,
 846                                     enum vfs_translate_direction direction,
 847                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 848 {
 849         return SMB_VFS_NEXT_TRANSLATE_NAME(handle, mapped_name, direction,
 850                                            mem_ctx, pmapped_name);
 851 }
 852
 853 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 854                            struct files_struct *fsp,
 855                            TALLOC_CTX *ctx,
 856                            uint32_t function,
 857                            uint16_t req_flags,  /* Needed for UNICODE ... */
 858                            const uint8_t *_in_data,
 859                            uint32_t in_len,
 860                            uint8_t ** _out_data,
 861                            uint32_t max_out_len, uint32_t *out_len)
 862 {
 863         return SMB_VFS_NEXT_FSCTL(handle,
 864                                   fsp,
 865                                   ctx,
 866                                   function,
 867                                   req_flags,
 868                                   _in_data,
 869                                   in_len, _out_data, max_out_len, out_len);
 870 }
 871
 872 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 873                                   const struct smb_filename *fname,
 874                                   TALLOC_CTX *mem_ctx,
 875                                   struct readdir_attr_data **pattr_data)
 876 {
 877         return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
 878 }
 879
 880 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 881                                 struct smb_filename *smb_fname,
 882                                 uint32_t *dosmode)
 883 {
 884         return SMB_VFS_NEXT_GET_DOS_ATTRIBUTES(handle,
 885                                 smb_fname,
 886                                 dosmode);
 887 }
 888
 889 struct skel_get_dos_attributes_state {
 890         struct vfs_aio_state aio_state;
 891         uint32_t dosmode;
 892 };
 893
 894 static void skel_get_dos_attributes_done(struct tevent_req *subreq);
 895
 896 static struct tevent_req *skel_get_dos_attributes_send(
 897                         TALLOC_CTX *mem_ctx,
 898                         const struct smb_vfs_ev_glue *evg,
 899                         struct vfs_handle_struct *handle,
 900                         files_struct *dir_fsp,
 901                         struct smb_filename *smb_fname)
 902 {
 903         struct tevent_context *ev = smb_vfs_ev_glue_ev_ctx(evg);
 904         struct tevent_req *req = NULL;
 905         struct skel_get_dos_attributes_state *state = NULL;
 906         struct tevent_req *subreq = NULL;
 907
 908         req = tevent_req_create(mem_ctx, &state,
 909                                 struct skel_get_dos_attributes_state);
 910         if (req == NULL) {
 911                 return NULL;
 912         }
 913
 914         subreq = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_SEND(mem_ctx,
 915                                                       evg,
 916                                                       handle,
 917                                                       dir_fsp,
 918                                                       smb_fname);
 919         if (tevent_req_nomem(subreq, req)) {
 920                 return tevent_req_post(req, ev);
 921         }
 922         tevent_req_set_callback(subreq, skel_get_dos_attributes_done, req);
 923
 924         return req;
 925 }
 926
 927 static void skel_get_dos_attributes_done(struct tevent_req *subreq)
 928 {
 929         struct tevent_req *req =
 930                 tevent_req_callback_data(subreq,
 931                 struct tevent_req);
 932         struct skel_get_dos_attributes_state *state =
 933                 tevent_req_data(req,
 934                 struct skel_get_dos_attributes_state);
 935         NTSTATUS status;
 936
 937         status = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_RECV(subreq,
 938                                                       &state->aio_state,
 939                                                       &state->dosmode);
 940         TALLOC_FREE(subreq);
 941         if (tevent_req_nterror(req, status)) {
 942                 return;
 943         }
 944
 945         tevent_req_done(req);
 946         return;
 947 }
 948
 949 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
 950                                              struct vfs_aio_state *aio_state,
 951                                              uint32_t *dosmode)
 952 {
 953         struct skel_get_dos_attributes_state *state =
 954                 tevent_req_data(req,
 955                 struct skel_get_dos_attributes_state);
 956         NTSTATUS status;
 957
 958         if (tevent_req_is_nterror(req, &status)) {
 959                 tevent_req_received(req);
 960                 return status;
 961         }
 962
 963         *aio_state = state->aio_state;
 964         *dosmode = state->dosmode;
 965         tevent_req_received(req);
 966         return NT_STATUS_OK;
 967 }
 968
 969 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
 970                                 struct files_struct *fsp,
 971                                 uint32_t *dosmode)
 972 {
 973         return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle,
 974                                 fsp,
 975                                 dosmode);
 976 }
 977
 978 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
 979                                 const struct smb_filename *smb_fname,
 980                                 uint32_t dosmode)
 981 {
 982         return SMB_VFS_NEXT_SET_DOS_ATTRIBUTES(handle,
 983                                 smb_fname,
 984                                 dosmode);
 985 }
 986
 987 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
 988                                 struct files_struct *fsp,
 989                                 uint32_t dosmode)
 990 {
 991         return SMB_VFS_NEXT_FSET_DOS_ATTRIBUTES(handle,
 992                                 fsp,
 993                                 dosmode);
 994 }
 995
 996 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 997                                  uint32_t security_info,
 998                                  TALLOC_CTX *mem_ctx,
 999                                  struct security_descriptor **ppdesc)
1000 {
1001         return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, mem_ctx,
1002                                         ppdesc);
1003 }
1004
1005 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
1006                                 const struct smb_filename *smb_fname,
1007                                 uint32_t security_info,
1008                                 TALLOC_CTX *mem_ctx,
1009                                 struct security_descriptor **ppdesc)
1010 {
1011         return SMB_VFS_NEXT_GET_NT_ACL(handle,
1012                                 smb_fname,
1013                                 security_info,
1014                                 mem_ctx,
1015                                 ppdesc);
1016 }
1017
1018 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1019                                  uint32_t security_info_sent,
1020                                  const struct security_descriptor *psd)
1021 {
1022         return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
1023 }
1024
1025 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
1026                                        const struct smb_filename *smb_fname,
1027                                        SMB_ACL_TYPE_T type,
1028                                        TALLOC_CTX *mem_ctx)
1029 {
1030         return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, smb_fname, type, mem_ctx);
1031 }
1032
1033 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
1034                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
1035 {
1036         return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
1037 }
1038
1039 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
1040                                 const struct smb_filename *smb_fname,
1041                                 TALLOC_CTX *mem_ctx,
1042                                 char **blob_description,
1043                                 DATA_BLOB *blob)
1044 {
1045         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, smb_fname, mem_ctx,
1046                                                   blob_description, blob);
1047 }
1048
1049 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1050                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
1051                                     char **blob_description, DATA_BLOB *blob)
1052 {
1053         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
1054                                                 blob_description, blob);
1055 }
1056
1057 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
1058                                 const struct smb_filename *smb_fname,
1059                                 SMB_ACL_TYPE_T acltype,
1060                                 SMB_ACL_T theacl)
1061 {
1062         return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, smb_fname,
1063                         acltype, theacl);
1064 }
1065
1066 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1067                                SMB_ACL_T theacl)
1068 {
1069         return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
1070 }
1071
1072 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
1073                                         const struct smb_filename *smb_fname)
1074 {
1075         return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, smb_fname);
1076 }
1077
1078 static ssize_t skel_getxattr(vfs_handle_struct *handle,
1079                                 const struct smb_filename *smb_fname,
1080                                 const char *name,
1081                                 void *value,
1082                                 size_t size)
1083 {
1084         return SMB_VFS_NEXT_GETXATTR(handle, smb_fname, name, value, size);
1085 }
1086
1087 struct skel_getxattrat_state {
1088         struct vfs_aio_state aio_state;
1089         ssize_t xattr_size;
1090         uint8_t *xattr_value;
1091 };
1092
1093 static void skel_getxattrat_done(struct tevent_req *subreq);
1094
1095 static struct tevent_req *skel_getxattrat_send(
1096                         TALLOC_CTX *mem_ctx,
1097                         const struct smb_vfs_ev_glue *evg,
1098                         struct vfs_handle_struct *handle,
1099                         files_struct *dir_fsp,
1100                         const struct smb_filename *smb_fname,
1101                         const char *xattr_name,
1102                         size_t alloc_hint)
1103 {
1104         struct tevent_context *ev = smb_vfs_ev_glue_ev_ctx(evg);
1105         struct tevent_req *req = NULL;
1106         struct skel_getxattrat_state *state = NULL;
1107         struct tevent_req *subreq = NULL;
1108
1109         req = tevent_req_create(mem_ctx, &state,
1110                                 struct skel_getxattrat_state);
1111         if (req == NULL) {
1112                 return NULL;
1113         }
1114
1115         subreq = SMB_VFS_NEXT_GETXATTRAT_SEND(state,
1116                                               evg,
1117                                               handle,
1118                                               dir_fsp,
1119                                               smb_fname,
1120                                               xattr_name,
1121                                               alloc_hint);
1122         if (tevent_req_nomem(subreq, req)) {
1123                 return tevent_req_post(req, ev);
1124         }
1125         tevent_req_set_callback(subreq, skel_getxattrat_done, req);
1126
1127         return req;
1128 }
1129
1130 static void skel_getxattrat_done(struct tevent_req *subreq)
1131 {
1132         struct tevent_req *req = tevent_req_callback_data(
1133                 subreq, struct tevent_req);
1134         struct skel_getxattrat_state *state = tevent_req_data(
1135                 req, struct skel_getxattrat_state);
1136
1137         state->xattr_size = SMB_VFS_NEXT_GETXATTRAT_RECV(subreq,
1138                                                          &state->aio_state,
1139                                                          state,
1140                                                          &state->xattr_value);
1141         TALLOC_FREE(subreq);
1142         if (state->xattr_size == -1) {
1143                 tevent_req_error(req, state->aio_state.error);
1144                 return;
1145         }
1146
1147         tevent_req_done(req);
1148 }
1149
1150 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
1151                                     struct vfs_aio_state *aio_state,
1152                                     TALLOC_CTX *mem_ctx,
1153                                     uint8_t **xattr_value)
1154 {
1155         struct skel_getxattrat_state *state = tevent_req_data(
1156                 req, struct skel_getxattrat_state);
1157         ssize_t xattr_size;
1158
1159         if (tevent_req_is_unix_error(req, &aio_state->error)) {
1160                 tevent_req_received(req);
1161                 return -1;
1162         }
1163
1164         *aio_state = state->aio_state;
1165         xattr_size = state->xattr_size;
1166         if (xattr_value != NULL) {
1167                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
1168         }
1169
1170         tevent_req_received(req);
1171         return xattr_size;
1172 }
1173
1174 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
1175                               struct files_struct *fsp, const char *name,
1176                               void *value, size_t size)
1177 {
1178         return SMB_VFS_NEXT_FGETXATTR(handle, fsp, name, value, size);
1179 }
1180
1181 static ssize_t skel_listxattr(vfs_handle_struct *handle,
1182                                 const struct smb_filename *smb_fname,
1183                                 char *list,
1184                                 size_t size)
1185 {
1186         return SMB_VFS_NEXT_LISTXATTR(handle, smb_fname, list, size);
1187 }
1188
1189 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
1190                                struct files_struct *fsp, char *list,
1191                                size_t size)
1192 {
1193         return SMB_VFS_NEXT_FLISTXATTR(handle, fsp, list, size);
1194 }
1195
1196 static int skel_removexattr(vfs_handle_struct *handle,
1197                         const struct smb_filename *smb_fname,
1198                         const char *name)
1199 {
1200         return SMB_VFS_NEXT_REMOVEXATTR(handle, smb_fname, name);
1201 }
1202
1203 static int skel_fremovexattr(vfs_handle_struct *handle,
1204                              struct files_struct *fsp, const char *name)
1205 {
1206         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
1207 }
1208
1209 static int skel_setxattr(vfs_handle_struct *handle,
1210                         const struct smb_filename *smb_fname,
1211                         const char *name,
1212                         const void *value,
1213                         size_t size,
1214                         int flags)
1215 {
1216         return SMB_VFS_NEXT_SETXATTR(handle, smb_fname,
1217                         name, value, size, flags);
1218 }
1219
1220 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1221                           const char *name, const void *value, size_t size,
1222                           int flags)
1223 {
1224         return SMB_VFS_NEXT_FSETXATTR(handle, fsp, name, value, size, flags);
1225 }
1226
1227 static bool skel_aio_force(struct vfs_handle_struct *handle,
1228                            struct files_struct *fsp)
1229 {
1230         return SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
1231 }
1232
1233 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
1234                                 struct smb_filename *file,
1235                                 struct security_acl *sacl,
1236                                 uint32_t access_requested,
1237                                 uint32_t access_denied)
1238 {
1239         return SMB_VFS_NEXT_AUDIT_FILE(handle,
1240                                        file,
1241                                        sacl,
1242                                        access_requested,
1243                                        access_denied);
1244 }
1245
1246 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
1247                                     struct files_struct *fsp,
1248                                     TALLOC_CTX *mem_ctx,
1249                                     DATA_BLOB *cookie)
1250 {
1251         return SMB_VFS_NEXT_DURABLE_COOKIE(handle,
1252                                            fsp,
1253                                            mem_ctx,
1254                                            cookie);
1255 }
1256
1257 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1258                                         struct files_struct *fsp,
1259                                         const DATA_BLOB old_cookie,
1260                                         TALLOC_CTX *mem_ctx,
1261                                         DATA_BLOB *new_cookie)
1262 {
1263         return SMB_VFS_NEXT_DURABLE_DISCONNECT(handle,
1264                                                fsp,
1265                                                old_cookie,
1266                                                mem_ctx,
1267                                                new_cookie);
1268 }
1269
1270 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1271                                        struct smb_request *smb1req,
1272                                        struct smbXsrv_open *op,
1273                                        const DATA_BLOB old_cookie,
1274                                        TALLOC_CTX *mem_ctx,
1275                                        struct files_struct **fsp,
1276                                        DATA_BLOB *new_cookie)
1277 {
1278         return SMB_VFS_NEXT_DURABLE_RECONNECT(handle,
1279                                               smb1req,
1280                                               op,
1281                                               old_cookie,
1282                                               mem_ctx,
1283                                               fsp,
1284                                               new_cookie);
1285 }
1286
1287 /* VFS operations structure */
1288
1289 static struct vfs_fn_pointers skel_transparent_fns = {
1290         /* Disk operations */
1291
1292         .connect_fn = skel_connect,
1293         .disconnect_fn = skel_disconnect,
1294         .disk_free_fn = skel_disk_free,
1295         .get_quota_fn = skel_get_quota,
1296         .set_quota_fn = skel_set_quota,
1297         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1298         .statvfs_fn = skel_statvfs,
1299         .fs_capabilities_fn = skel_fs_capabilities,
1300         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1301         .snap_check_path_fn = skel_snap_check_path,
1302         .snap_create_fn = skel_snap_create,
1303         .snap_delete_fn = skel_snap_delete,
1304
1305         /* Directory operations */
1306
1307         .opendir_fn = skel_opendir,
1308         .fdopendir_fn = skel_fdopendir,
1309         .readdir_fn = skel_readdir,
1310         .seekdir_fn = skel_seekdir,
1311         .telldir_fn = skel_telldir,
1312         .rewind_dir_fn = skel_rewind_dir,
1313         .mkdir_fn = skel_mkdir,
1314         .rmdir_fn = skel_rmdir,
1315         .closedir_fn = skel_closedir,
1316
1317         /* File operations */
1318
1319         .open_fn = skel_open,
1320         .create_file_fn = skel_create_file,
1321         .close_fn = skel_close_fn,
1322         .pread_fn = skel_pread,
1323         .pread_send_fn = skel_pread_send,
1324         .pread_recv_fn = skel_pread_recv,
1325         .pwrite_fn = skel_pwrite,
1326         .pwrite_send_fn = skel_pwrite_send,
1327         .pwrite_recv_fn = skel_pwrite_recv,
1328         .lseek_fn = skel_lseek,
1329         .sendfile_fn = skel_sendfile,
1330         .recvfile_fn = skel_recvfile,
1331         .rename_fn = skel_rename,
1332         .fsync_send_fn = skel_fsync_send,
1333         .fsync_recv_fn = skel_fsync_recv,
1334         .stat_fn = skel_stat,
1335         .fstat_fn = skel_fstat,
1336         .lstat_fn = skel_lstat,
1337         .get_alloc_size_fn = skel_get_alloc_size,
1338         .unlink_fn = skel_unlink,
1339         .chmod_fn = skel_chmod,
1340         .fchmod_fn = skel_fchmod,
1341         .chown_fn = skel_chown,
1342         .fchown_fn = skel_fchown,
1343         .lchown_fn = skel_lchown,
1344         .chdir_fn = skel_chdir,
1345         .getwd_fn = skel_getwd,
1346         .ntimes_fn = skel_ntimes,
1347         .ftruncate_fn = skel_ftruncate,
1348         .fallocate_fn = skel_fallocate,
1349         .lock_fn = skel_lock,
1350         .kernel_flock_fn = skel_kernel_flock,
1351         .linux_setlease_fn = skel_linux_setlease,
1352         .getlock_fn = skel_getlock,
1353         .symlink_fn = skel_symlink,
1354         .readlink_fn = skel_vfs_readlink,
1355         .link_fn = skel_link,
1356         .mknod_fn = skel_mknod,
1357         .realpath_fn = skel_realpath,
1358         .chflags_fn = skel_chflags,
1359         .file_id_create_fn = skel_file_id_create,
1360         .offload_read_send_fn = skel_offload_read_send,
1361         .offload_read_recv_fn = skel_offload_read_recv,
1362         .offload_write_send_fn = skel_offload_write_send,
1363         .offload_write_recv_fn = skel_offload_write_recv,
1364         .get_compression_fn = skel_get_compression,
1365         .set_compression_fn = skel_set_compression,
1366
1367         .streaminfo_fn = skel_streaminfo,
1368         .get_real_filename_fn = skel_get_real_filename,
1369         .connectpath_fn = skel_connectpath,
1370         .brl_lock_windows_fn = skel_brl_lock_windows,
1371         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1372         .brl_cancel_windows_fn = skel_brl_cancel_windows,
1373         .strict_lock_check_fn = skel_strict_lock_check,
1374         .translate_name_fn = skel_translate_name,
1375         .fsctl_fn = skel_fsctl,
1376         .readdir_attr_fn = skel_readdir_attr,
1377         .audit_file_fn = skel_audit_file,
1378
1379         /* DOS attributes. */
1380         .get_dos_attributes_fn = skel_get_dos_attributes,
1381         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1382         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1383         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1384         .set_dos_attributes_fn = skel_set_dos_attributes,
1385         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1386
1387         /* NT ACL operations. */
1388
1389         .fget_nt_acl_fn = skel_fget_nt_acl,
1390         .get_nt_acl_fn = skel_get_nt_acl,
1391         .fset_nt_acl_fn = skel_fset_nt_acl,
1392
1393         /* POSIX ACL operations. */
1394
1395         .sys_acl_get_file_fn = skel_sys_acl_get_file,
1396         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1397         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
1398         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1399         .sys_acl_set_file_fn = skel_sys_acl_set_file,
1400         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1401         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1402
1403         /* EA operations. */
1404         .getxattr_fn = skel_getxattr,
1405         .getxattrat_send_fn = skel_getxattrat_send,
1406         .getxattrat_recv_fn = skel_getxattrat_recv,
1407         .fgetxattr_fn = skel_fgetxattr,
1408         .listxattr_fn = skel_listxattr,
1409         .flistxattr_fn = skel_flistxattr,
1410         .removexattr_fn = skel_removexattr,
1411         .fremovexattr_fn = skel_fremovexattr,
1412         .setxattr_fn = skel_setxattr,
1413         .fsetxattr_fn = skel_fsetxattr,
1414
1415         /* aio operations */
1416         .aio_force_fn = skel_aio_force,
1417
1418         /* durable handle operations */
1419         .durable_cookie_fn = skel_durable_cookie,
1420         .durable_disconnect_fn = skel_durable_disconnect,
1421         .durable_reconnect_fn = skel_durable_reconnect,
1422 };
1423
1424 static_decl_vfs;
1425 NTSTATUS vfs_skel_transparent_init(TALLOC_CTX *ctx)
1426 {
1427         /*
1428          * smb_vfs_assert_all_fns() is only needed in
1429          * order to have a complete example.
1430          *
1431          * A transparent vfs module typically don't
1432          * need to implement every calls.
1433          */
1434         smb_vfs_assert_all_fns(&skel_transparent_fns, "skel_transparent");
1435         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_transparent",
1436                                 &skel_transparent_fns);
1437 }