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                                  const 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_renameat(vfs_handle_struct *handle,
 373                        files_struct *srcfsp,
 374                        const struct smb_filename *smb_fname_src,
 375                        files_struct *dstfsp,
 376                        const struct smb_filename *smb_fname_dst)
 377 {
 378         return SMB_VFS_NEXT_RENAMEAT(handle,
 379                         srcfsp,
 380                         smb_fname_src,
 381                         dstfsp,
 382                         smb_fname_dst);
 383 }
 384
 385 struct skel_fsync_state {
 386         int ret;
 387         struct vfs_aio_state vfs_aio_state;
 388 };
 389
 390 static void skel_fsync_done(struct tevent_req *subreq);
 391
 392 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 393                                           TALLOC_CTX *mem_ctx,
 394                                           struct tevent_context *ev,
 395                                           struct files_struct *fsp)
 396 {
 397         struct tevent_req *req, *subreq;
 398         struct skel_fsync_state *state;
 399
 400         req = tevent_req_create(mem_ctx, &state, struct skel_fsync_state);
 401         if (req == NULL) {
 402                 return NULL;
 403         }
 404         subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
 405         if (tevent_req_nomem(subreq, req)) {
 406                 return tevent_req_post(req, ev);
 407         }
 408         tevent_req_set_callback(subreq, skel_fsync_done, req);
 409         return req;
 410 }
 411
 412 static void skel_fsync_done(struct tevent_req *subreq)
 413 {
 414         struct tevent_req *req =
 415             tevent_req_callback_data(subreq, struct tevent_req);
 416         struct skel_fsync_state *state =
 417             tevent_req_data(req, struct skel_fsync_state);
 418
 419         state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->vfs_aio_state);
 420         TALLOC_FREE(subreq);
 421         tevent_req_done(req);
 422 }
 423
 424 static int skel_fsync_recv(struct tevent_req *req,
 425                            struct vfs_aio_state *vfs_aio_state)
 426 {
 427         struct skel_fsync_state *state =
 428             tevent_req_data(req, struct skel_fsync_state);
 429
 430         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 431                 return -1;
 432         }
 433         *vfs_aio_state = state->vfs_aio_state;
 434         return state->ret;
 435 }
 436
 437 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 438 {
 439         return SMB_VFS_NEXT_STAT(handle, smb_fname);
 440 }
 441
 442 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 443                       SMB_STRUCT_STAT *sbuf)
 444 {
 445         return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
 446 }
 447
 448 static int skel_lstat(vfs_handle_struct *handle,
 449                       struct smb_filename *smb_fname)
 450 {
 451         return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
 452 }
 453
 454 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 455                                     struct files_struct *fsp,
 456                                     const SMB_STRUCT_STAT *sbuf)
 457 {
 458         return SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
 459 }
 460
 461 static int skel_unlink(vfs_handle_struct *handle,
 462                        const struct smb_filename *smb_fname)
 463 {
 464         return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 465 }
 466
 467 static int skel_chmod(vfs_handle_struct *handle,
 468                         const struct smb_filename *smb_fname,
 469                         mode_t mode)
 470 {
 471         return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
 472 }
 473
 474 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 475                        mode_t mode)
 476 {
 477         return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
 478 }
 479
 480 static int skel_chown(vfs_handle_struct *handle,
 481                         const struct smb_filename *smb_fname,
 482                         uid_t uid,
 483                         gid_t gid)
 484 {
 485         return SMB_VFS_NEXT_CHOWN(handle, smb_fname, uid, gid);
 486 }
 487
 488 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 489                        uid_t uid, gid_t gid)
 490 {
 491         return SMB_VFS_NEXT_FCHOWN(handle, fsp, uid, gid);
 492 }
 493
 494 static int skel_lchown(vfs_handle_struct *handle,
 495                         const struct smb_filename *smb_fname,
 496                         uid_t uid,
 497                         gid_t gid)
 498 {
 499         return SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
 500 }
 501
 502 static int skel_chdir(vfs_handle_struct *handle,
 503                         const struct smb_filename *smb_fname)
 504 {
 505         return SMB_VFS_NEXT_CHDIR(handle, smb_fname);
 506 }
 507
 508 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 509                                         TALLOC_CTX *ctx)
 510 {
 511         return SMB_VFS_NEXT_GETWD(handle, ctx);
 512 }
 513
 514 static int skel_ntimes(vfs_handle_struct *handle,
 515                        const struct smb_filename *smb_fname,
 516                        struct smb_file_time *ft)
 517 {
 518         return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
 519 }
 520
 521 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 522                           off_t offset)
 523 {
 524         return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
 525 }
 526
 527 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 528                           uint32_t mode, off_t offset, off_t len)
 529 {
 530         return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
 531 }
 532
 533 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 534                       off_t offset, off_t count, int type)
 535 {
 536         return SMB_VFS_NEXT_LOCK(handle, fsp, op, offset, count, type);
 537 }
 538
 539 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 540                              struct files_struct *fsp, uint32_t share_mode,
 541                              uint32_t access_mask)
 542 {
 543         return SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp, share_mode, access_mask);
 544 }
 545
 546 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 547                                struct files_struct *fsp, int leasetype)
 548 {
 549         return SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, leasetype);
 550 }
 551
 552 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 553                          off_t *poffset, off_t *pcount, int *ptype,
 554                          pid_t *ppid)
 555 {
 556         return SMB_VFS_NEXT_GETLOCK(handle, fsp, poffset, pcount, ptype, ppid);
 557 }
 558
 559 static int skel_symlink(vfs_handle_struct *handle,
 560                         const char *link_contents,
 561                         const struct smb_filename *new_smb_fname)
 562 {
 563         return SMB_VFS_NEXT_SYMLINK(handle, link_contents, new_smb_fname);
 564 }
 565
 566 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
 567                         files_struct *dirfsp,
 568                         const struct smb_filename *smb_fname,
 569                         char *buf,
 570                         size_t bufsiz)
 571 {
 572         return SMB_VFS_NEXT_READLINKAT(handle,
 573                         dirfsp,
 574                         smb_fname,
 575                         buf,
 576                         bufsiz);
 577 }
 578
 579 static int skel_linkat(vfs_handle_struct *handle,
 580                         files_struct *srcfsp,
 581                         const struct smb_filename *old_smb_fname,
 582                         files_struct *dstfsp,
 583                         const struct smb_filename *new_smb_fname,
 584                         int flags)
 585 {
 586         return SMB_VFS_NEXT_LINKAT(handle,
 587                         srcfsp,
 588                         old_smb_fname,
 589                         dstfsp,
 590                         new_smb_fname,
 591                         flags);
 592 }
 593
 594 static int skel_mknodat(vfs_handle_struct *handle,
 595                         files_struct *dirfsp,
 596                         const struct smb_filename *smb_fname,
 597                         mode_t mode,
 598                         SMB_DEV_T dev)
 599 {
 600         return SMB_VFS_NEXT_MKNODAT(handle,
 601                         dirfsp,
 602                         smb_fname,
 603                         mode,
 604                         dev);
 605 }
 606
 607 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 608                         TALLOC_CTX *ctx,
 609                         const struct smb_filename *smb_fname)
 610 {
 611         return SMB_VFS_NEXT_REALPATH(handle, ctx, smb_fname);
 612 }
 613
 614 static int skel_chflags(vfs_handle_struct *handle,
 615                         const struct smb_filename *smb_fname,
 616                         uint flags)
 617 {
 618         return SMB_VFS_NEXT_CHFLAGS(handle, smb_fname, flags);
 619 }
 620
 621 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 622                                           const SMB_STRUCT_STAT *sbuf)
 623 {
 624         return SMB_VFS_NEXT_FILE_ID_CREATE(handle, sbuf);
 625 }
 626
 627 static uint64_t skel_fs_file_id(vfs_handle_struct *handle,
 628                                 const SMB_STRUCT_STAT *sbuf)
 629 {
 630         return SMB_VFS_NEXT_FS_FILE_ID(handle, sbuf);
 631 }
 632
 633 struct skel_offload_read_state {
 634         struct vfs_handle_struct *handle;
 635         DATA_BLOB token;
 636 };
 637
 638 static void skel_offload_read_done(struct tevent_req *subreq);
 639
 640 static struct tevent_req *skel_offload_read_send(
 641         TALLOC_CTX *mem_ctx,
 642         struct tevent_context *ev,
 643         struct vfs_handle_struct *handle,
 644         struct files_struct *fsp,
 645         uint32_t fsctl,
 646         uint32_t ttl,
 647         off_t offset,
 648         size_t to_copy)
 649 {
 650         struct tevent_req *req = NULL;
 651         struct skel_offload_read_state *state = NULL;
 652         struct tevent_req *subreq = NULL;
 653
 654         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 655         if (req == NULL) {
 656                 return NULL;
 657         }
 658         *state = (struct skel_offload_read_state) {
 659                 .handle = handle,
 660         };
 661
 662         subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
 663                                                 fsctl, ttl, offset, to_copy);
 664         if (tevent_req_nomem(subreq, req)) {
 665                 return tevent_req_post(req, ev);
 666         }
 667         tevent_req_set_callback(subreq, skel_offload_read_done, req);
 668         return req;
 669 }
 670
 671 static void skel_offload_read_done(struct tevent_req *subreq)
 672 {
 673         struct tevent_req *req = tevent_req_callback_data(
 674                 subreq, struct tevent_req);
 675         struct skel_offload_read_state *state = tevent_req_data(
 676                 req, struct skel_offload_read_state);
 677         NTSTATUS status;
 678
 679         status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
 680                                                 state->handle,
 681                                                 state,
 682                                                 &state->token);
 683         TALLOC_FREE(subreq);
 684         if (tevent_req_nterror(req, status)) {
 685                 return;
 686         }
 687
 688         tevent_req_done(req);
 689         return;
 690 }
 691
 692 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 693                                        struct vfs_handle_struct *handle,
 694                                        TALLOC_CTX *mem_ctx,
 695                                        DATA_BLOB *_token)
 696 {
 697         struct skel_offload_read_state *state = tevent_req_data(
 698                 req, struct skel_offload_read_state);
 699         DATA_BLOB token;
 700         NTSTATUS status;
 701
 702         if (tevent_req_is_nterror(req, &status)) {
 703                 tevent_req_received(req);
 704                 return status;
 705         }
 706
 707         token = data_blob_talloc(mem_ctx,
 708                                  state->token.data,
 709                                  state->token.length);
 710
 711         tevent_req_received(req);
 712
 713         if (token.data == NULL) {
 714                 return NT_STATUS_NO_MEMORY;
 715         }
 716
 717         *_token = token;
 718         return NT_STATUS_OK;
 719 }
 720
 721 struct skel_offload_write_state {
 722         struct vfs_handle_struct *handle;
 723         off_t copied;
 724 };
 725 static void skel_offload_write_done(struct tevent_req *subreq);
 726
 727 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 728                                                TALLOC_CTX *mem_ctx,
 729                                                struct tevent_context *ev,
 730                                                uint32_t fsctl,
 731                                                DATA_BLOB *token,
 732                                                off_t transfer_offset,
 733                                                struct files_struct *dest_fsp,
 734                                                off_t dest_off,
 735                                                off_t num)
 736 {
 737         struct tevent_req *req;
 738         struct tevent_req *subreq;
 739         struct skel_offload_write_state *state;
 740
 741         req = tevent_req_create(mem_ctx, &state, struct skel_offload_write_state);
 742         if (req == NULL) {
 743                 return NULL;
 744         }
 745
 746         state->handle = handle;
 747         subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle, state, ev,
 748                                               fsctl, token, transfer_offset,
 749                                               dest_fsp, dest_off, num);
 750         if (tevent_req_nomem(subreq, req)) {
 751                 return tevent_req_post(req, ev);
 752         }
 753
 754         tevent_req_set_callback(subreq, skel_offload_write_done, req);
 755         return req;
 756 }
 757
 758 static void skel_offload_write_done(struct tevent_req *subreq)
 759 {
 760         struct tevent_req *req = tevent_req_callback_data(
 761                 subreq, struct tevent_req);
 762         struct skel_offload_write_state *state
 763                         = tevent_req_data(req, struct skel_offload_write_state);
 764         NTSTATUS status;
 765
 766         status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
 767                                               subreq,
 768                                               &state->copied);
 769         TALLOC_FREE(subreq);
 770         if (tevent_req_nterror(req, status)) {
 771                 return;
 772         }
 773         tevent_req_done(req);
 774 }
 775
 776 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 777                                      struct tevent_req *req,
 778                                      off_t *copied)
 779 {
 780         struct skel_offload_write_state *state
 781                         = tevent_req_data(req, struct skel_offload_write_state);
 782         NTSTATUS status;
 783
 784         *copied = state->copied;
 785         if (tevent_req_is_nterror(req, &status)) {
 786                 tevent_req_received(req);
 787                 return status;
 788         }
 789
 790         tevent_req_received(req);
 791         return NT_STATUS_OK;
 792 }
 793
 794 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 795                                      TALLOC_CTX *mem_ctx,
 796                                      struct files_struct *fsp,
 797                                      struct smb_filename *smb_fname,
 798                                      uint16_t *_compression_fmt)
 799 {
 800         return SMB_VFS_NEXT_GET_COMPRESSION(handle, mem_ctx, fsp, smb_fname,
 801                                             _compression_fmt);
 802 }
 803
 804 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 805                                      TALLOC_CTX *mem_ctx,
 806                                      struct files_struct *fsp,
 807                                      uint16_t compression_fmt)
 808 {
 809         return SMB_VFS_NEXT_SET_COMPRESSION(handle, mem_ctx, fsp,
 810                                             compression_fmt);
 811 }
 812
 813 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 814                                 struct files_struct *fsp,
 815                                 const struct smb_filename *smb_fname,
 816                                 TALLOC_CTX *mem_ctx,
 817                                 unsigned int *num_streams,
 818                                 struct stream_struct **streams)
 819 {
 820         return SMB_VFS_NEXT_STREAMINFO(handle,
 821                                 fsp,
 822                                 smb_fname,
 823                                 mem_ctx,
 824                                 num_streams,
 825                                 streams);
 826 }
 827
 828 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 829                                   const char *path,
 830                                   const char *name,
 831                                   TALLOC_CTX *mem_ctx, char **found_name)
 832 {
 833         return SMB_VFS_NEXT_GET_REAL_FILENAME(handle,
 834                                               path, name, mem_ctx, found_name);
 835 }
 836
 837 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 838                                 const struct smb_filename *smb_fname)
 839 {
 840         return SMB_VFS_NEXT_CONNECTPATH(handle, smb_fname);
 841 }
 842
 843 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 844                                       struct byte_range_lock *br_lck,
 845                                       struct lock_struct *plock)
 846 {
 847         return SMB_VFS_NEXT_BRL_LOCK_WINDOWS(handle, br_lck, plock);
 848 }
 849
 850 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 851                                     struct byte_range_lock *br_lck,
 852                                     const struct lock_struct *plock)
 853 {
 854         return SMB_VFS_NEXT_BRL_UNLOCK_WINDOWS(handle, br_lck, plock);
 855 }
 856
 857 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 858                                    struct files_struct *fsp,
 859                                    struct lock_struct *plock)
 860 {
 861         return SMB_VFS_NEXT_STRICT_LOCK_CHECK(handle, fsp, plock);
 862 }
 863
 864 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 865                                     const char *mapped_name,
 866                                     enum vfs_translate_direction direction,
 867                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 868 {
 869         return SMB_VFS_NEXT_TRANSLATE_NAME(handle, mapped_name, direction,
 870                                            mem_ctx, pmapped_name);
 871 }
 872
 873 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 874                            struct files_struct *fsp,
 875                            TALLOC_CTX *ctx,
 876                            uint32_t function,
 877                            uint16_t req_flags,  /* Needed for UNICODE ... */
 878                            const uint8_t *_in_data,
 879                            uint32_t in_len,
 880                            uint8_t ** _out_data,
 881                            uint32_t max_out_len, uint32_t *out_len)
 882 {
 883         return SMB_VFS_NEXT_FSCTL(handle,
 884                                   fsp,
 885                                   ctx,
 886                                   function,
 887                                   req_flags,
 888                                   _in_data,
 889                                   in_len, _out_data, max_out_len, out_len);
 890 }
 891
 892 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 893                                   const struct smb_filename *fname,
 894                                   TALLOC_CTX *mem_ctx,
 895                                   struct readdir_attr_data **pattr_data)
 896 {
 897         return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
 898 }
 899
 900 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 901                                 struct smb_filename *smb_fname,
 902                                 uint32_t *dosmode)
 903 {
 904         return SMB_VFS_NEXT_GET_DOS_ATTRIBUTES(handle,
 905                                 smb_fname,
 906                                 dosmode);
 907 }
 908
 909 struct skel_get_dos_attributes_state {
 910         struct vfs_aio_state aio_state;
 911         uint32_t dosmode;
 912 };
 913
 914 static void skel_get_dos_attributes_done(struct tevent_req *subreq);
 915
 916 static struct tevent_req *skel_get_dos_attributes_send(
 917                         TALLOC_CTX *mem_ctx,
 918                         struct tevent_context *ev,
 919                         struct vfs_handle_struct *handle,
 920                         files_struct *dir_fsp,
 921                         struct smb_filename *smb_fname)
 922 {
 923         struct tevent_req *req = NULL;
 924         struct skel_get_dos_attributes_state *state = NULL;
 925         struct tevent_req *subreq = NULL;
 926
 927         req = tevent_req_create(mem_ctx, &state,
 928                                 struct skel_get_dos_attributes_state);
 929         if (req == NULL) {
 930                 return NULL;
 931         }
 932
 933         subreq = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_SEND(mem_ctx,
 934                                                       ev,
 935                                                       handle,
 936                                                       dir_fsp,
 937                                                       smb_fname);
 938         if (tevent_req_nomem(subreq, req)) {
 939                 return tevent_req_post(req, ev);
 940         }
 941         tevent_req_set_callback(subreq, skel_get_dos_attributes_done, req);
 942
 943         return req;
 944 }
 945
 946 static void skel_get_dos_attributes_done(struct tevent_req *subreq)
 947 {
 948         struct tevent_req *req =
 949                 tevent_req_callback_data(subreq,
 950                 struct tevent_req);
 951         struct skel_get_dos_attributes_state *state =
 952                 tevent_req_data(req,
 953                 struct skel_get_dos_attributes_state);
 954         NTSTATUS status;
 955
 956         status = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_RECV(subreq,
 957                                                       &state->aio_state,
 958                                                       &state->dosmode);
 959         TALLOC_FREE(subreq);
 960         if (tevent_req_nterror(req, status)) {
 961                 return;
 962         }
 963
 964         tevent_req_done(req);
 965         return;
 966 }
 967
 968 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
 969                                              struct vfs_aio_state *aio_state,
 970                                              uint32_t *dosmode)
 971 {
 972         struct skel_get_dos_attributes_state *state =
 973                 tevent_req_data(req,
 974                 struct skel_get_dos_attributes_state);
 975         NTSTATUS status;
 976
 977         if (tevent_req_is_nterror(req, &status)) {
 978                 tevent_req_received(req);
 979                 return status;
 980         }
 981
 982         *aio_state = state->aio_state;
 983         *dosmode = state->dosmode;
 984         tevent_req_received(req);
 985         return NT_STATUS_OK;
 986 }
 987
 988 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
 989                                 struct files_struct *fsp,
 990                                 uint32_t *dosmode)
 991 {
 992         return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle,
 993                                 fsp,
 994                                 dosmode);
 995 }
 996
 997 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
 998                                 const struct smb_filename *smb_fname,
 999                                 uint32_t dosmode)
1000 {
1001         return SMB_VFS_NEXT_SET_DOS_ATTRIBUTES(handle,
1002                                 smb_fname,
1003                                 dosmode);
1004 }
1005
1006 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
1007                                 struct files_struct *fsp,
1008                                 uint32_t dosmode)
1009 {
1010         return SMB_VFS_NEXT_FSET_DOS_ATTRIBUTES(handle,
1011                                 fsp,
1012                                 dosmode);
1013 }
1014
1015 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1016                                  uint32_t security_info,
1017                                  TALLOC_CTX *mem_ctx,
1018                                  struct security_descriptor **ppdesc)
1019 {
1020         return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, mem_ctx,
1021                                         ppdesc);
1022 }
1023
1024 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
1025                                 const struct smb_filename *smb_fname,
1026                                 uint32_t security_info,
1027                                 TALLOC_CTX *mem_ctx,
1028                                 struct security_descriptor **ppdesc)
1029 {
1030         return SMB_VFS_NEXT_GET_NT_ACL(handle,
1031                                 smb_fname,
1032                                 security_info,
1033                                 mem_ctx,
1034                                 ppdesc);
1035 }
1036
1037 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1038                                  uint32_t security_info_sent,
1039                                  const struct security_descriptor *psd)
1040 {
1041         return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
1042 }
1043
1044 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
1045                                        const struct smb_filename *smb_fname,
1046                                        SMB_ACL_TYPE_T type,
1047                                        TALLOC_CTX *mem_ctx)
1048 {
1049         return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, smb_fname, type, mem_ctx);
1050 }
1051
1052 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
1053                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
1054 {
1055         return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
1056 }
1057
1058 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
1059                                 const struct smb_filename *smb_fname,
1060                                 TALLOC_CTX *mem_ctx,
1061                                 char **blob_description,
1062                                 DATA_BLOB *blob)
1063 {
1064         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, smb_fname, mem_ctx,
1065                                                   blob_description, blob);
1066 }
1067
1068 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1069                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
1070                                     char **blob_description, DATA_BLOB *blob)
1071 {
1072         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
1073                                                 blob_description, blob);
1074 }
1075
1076 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
1077                                 const struct smb_filename *smb_fname,
1078                                 SMB_ACL_TYPE_T acltype,
1079                                 SMB_ACL_T theacl)
1080 {
1081         return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, smb_fname,
1082                         acltype, theacl);
1083 }
1084
1085 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1086                                SMB_ACL_T theacl)
1087 {
1088         return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
1089 }
1090
1091 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
1092                                         const struct smb_filename *smb_fname)
1093 {
1094         return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, smb_fname);
1095 }
1096
1097 static ssize_t skel_getxattr(vfs_handle_struct *handle,
1098                                 const struct smb_filename *smb_fname,
1099                                 const char *name,
1100                                 void *value,
1101                                 size_t size)
1102 {
1103         return SMB_VFS_NEXT_GETXATTR(handle, smb_fname, name, value, size);
1104 }
1105
1106 struct skel_getxattrat_state {
1107         struct vfs_aio_state aio_state;
1108         ssize_t xattr_size;
1109         uint8_t *xattr_value;
1110 };
1111
1112 static void skel_getxattrat_done(struct tevent_req *subreq);
1113
1114 static struct tevent_req *skel_getxattrat_send(
1115                         TALLOC_CTX *mem_ctx,
1116                         struct tevent_context *ev,
1117                         struct vfs_handle_struct *handle,
1118                         files_struct *dir_fsp,
1119                         const struct smb_filename *smb_fname,
1120                         const char *xattr_name,
1121                         size_t alloc_hint)
1122 {
1123         struct tevent_req *req = NULL;
1124         struct skel_getxattrat_state *state = NULL;
1125         struct tevent_req *subreq = NULL;
1126
1127         req = tevent_req_create(mem_ctx, &state,
1128                                 struct skel_getxattrat_state);
1129         if (req == NULL) {
1130                 return NULL;
1131         }
1132
1133         subreq = SMB_VFS_NEXT_GETXATTRAT_SEND(state,
1134                                               ev,
1135                                               handle,
1136                                               dir_fsp,
1137                                               smb_fname,
1138                                               xattr_name,
1139                                               alloc_hint);
1140         if (tevent_req_nomem(subreq, req)) {
1141                 return tevent_req_post(req, ev);
1142         }
1143         tevent_req_set_callback(subreq, skel_getxattrat_done, req);
1144
1145         return req;
1146 }
1147
1148 static void skel_getxattrat_done(struct tevent_req *subreq)
1149 {
1150         struct tevent_req *req = tevent_req_callback_data(
1151                 subreq, struct tevent_req);
1152         struct skel_getxattrat_state *state = tevent_req_data(
1153                 req, struct skel_getxattrat_state);
1154
1155         state->xattr_size = SMB_VFS_NEXT_GETXATTRAT_RECV(subreq,
1156                                                          &state->aio_state,
1157                                                          state,
1158                                                          &state->xattr_value);
1159         TALLOC_FREE(subreq);
1160         if (state->xattr_size == -1) {
1161                 tevent_req_error(req, state->aio_state.error);
1162                 return;
1163         }
1164
1165         tevent_req_done(req);
1166 }
1167
1168 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
1169                                     struct vfs_aio_state *aio_state,
1170                                     TALLOC_CTX *mem_ctx,
1171                                     uint8_t **xattr_value)
1172 {
1173         struct skel_getxattrat_state *state = tevent_req_data(
1174                 req, struct skel_getxattrat_state);
1175         ssize_t xattr_size;
1176
1177         if (tevent_req_is_unix_error(req, &aio_state->error)) {
1178                 tevent_req_received(req);
1179                 return -1;
1180         }
1181
1182         *aio_state = state->aio_state;
1183         xattr_size = state->xattr_size;
1184         if (xattr_value != NULL) {
1185                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
1186         }
1187
1188         tevent_req_received(req);
1189         return xattr_size;
1190 }
1191
1192 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
1193                               struct files_struct *fsp, const char *name,
1194                               void *value, size_t size)
1195 {
1196         return SMB_VFS_NEXT_FGETXATTR(handle, fsp, name, value, size);
1197 }
1198
1199 static ssize_t skel_listxattr(vfs_handle_struct *handle,
1200                                 const struct smb_filename *smb_fname,
1201                                 char *list,
1202                                 size_t size)
1203 {
1204         return SMB_VFS_NEXT_LISTXATTR(handle, smb_fname, list, size);
1205 }
1206
1207 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
1208                                struct files_struct *fsp, char *list,
1209                                size_t size)
1210 {
1211         return SMB_VFS_NEXT_FLISTXATTR(handle, fsp, list, size);
1212 }
1213
1214 static int skel_removexattr(vfs_handle_struct *handle,
1215                         const struct smb_filename *smb_fname,
1216                         const char *name)
1217 {
1218         return SMB_VFS_NEXT_REMOVEXATTR(handle, smb_fname, name);
1219 }
1220
1221 static int skel_fremovexattr(vfs_handle_struct *handle,
1222                              struct files_struct *fsp, const char *name)
1223 {
1224         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
1225 }
1226
1227 static int skel_setxattr(vfs_handle_struct *handle,
1228                         const struct smb_filename *smb_fname,
1229                         const char *name,
1230                         const void *value,
1231                         size_t size,
1232                         int flags)
1233 {
1234         return SMB_VFS_NEXT_SETXATTR(handle, smb_fname,
1235                         name, value, size, flags);
1236 }
1237
1238 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1239                           const char *name, const void *value, size_t size,
1240                           int flags)
1241 {
1242         return SMB_VFS_NEXT_FSETXATTR(handle, fsp, name, value, size, flags);
1243 }
1244
1245 static bool skel_aio_force(struct vfs_handle_struct *handle,
1246                            struct files_struct *fsp)
1247 {
1248         return SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
1249 }
1250
1251 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
1252                                 struct smb_filename *file,
1253                                 struct security_acl *sacl,
1254                                 uint32_t access_requested,
1255                                 uint32_t access_denied)
1256 {
1257         return SMB_VFS_NEXT_AUDIT_FILE(handle,
1258                                        file,
1259                                        sacl,
1260                                        access_requested,
1261                                        access_denied);
1262 }
1263
1264 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
1265                                     struct files_struct *fsp,
1266                                     TALLOC_CTX *mem_ctx,
1267                                     DATA_BLOB *cookie)
1268 {
1269         return SMB_VFS_NEXT_DURABLE_COOKIE(handle,
1270                                            fsp,
1271                                            mem_ctx,
1272                                            cookie);
1273 }
1274
1275 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1276                                         struct files_struct *fsp,
1277                                         const DATA_BLOB old_cookie,
1278                                         TALLOC_CTX *mem_ctx,
1279                                         DATA_BLOB *new_cookie)
1280 {
1281         return SMB_VFS_NEXT_DURABLE_DISCONNECT(handle,
1282                                                fsp,
1283                                                old_cookie,
1284                                                mem_ctx,
1285                                                new_cookie);
1286 }
1287
1288 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1289                                        struct smb_request *smb1req,
1290                                        struct smbXsrv_open *op,
1291                                        const DATA_BLOB old_cookie,
1292                                        TALLOC_CTX *mem_ctx,
1293                                        struct files_struct **fsp,
1294                                        DATA_BLOB *new_cookie)
1295 {
1296         return SMB_VFS_NEXT_DURABLE_RECONNECT(handle,
1297                                               smb1req,
1298                                               op,
1299                                               old_cookie,
1300                                               mem_ctx,
1301                                               fsp,
1302                                               new_cookie);
1303 }
1304
1305 /* VFS operations structure */
1306
1307 static struct vfs_fn_pointers skel_transparent_fns = {
1308         /* Disk operations */
1309
1310         .connect_fn = skel_connect,
1311         .disconnect_fn = skel_disconnect,
1312         .disk_free_fn = skel_disk_free,
1313         .get_quota_fn = skel_get_quota,
1314         .set_quota_fn = skel_set_quota,
1315         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1316         .statvfs_fn = skel_statvfs,
1317         .fs_capabilities_fn = skel_fs_capabilities,
1318         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1319         .snap_check_path_fn = skel_snap_check_path,
1320         .snap_create_fn = skel_snap_create,
1321         .snap_delete_fn = skel_snap_delete,
1322
1323         /* Directory operations */
1324
1325         .opendir_fn = skel_opendir,
1326         .fdopendir_fn = skel_fdopendir,
1327         .readdir_fn = skel_readdir,
1328         .seekdir_fn = skel_seekdir,
1329         .telldir_fn = skel_telldir,
1330         .rewind_dir_fn = skel_rewind_dir,
1331         .mkdir_fn = skel_mkdir,
1332         .rmdir_fn = skel_rmdir,
1333         .closedir_fn = skel_closedir,
1334
1335         /* File operations */
1336
1337         .open_fn = skel_open,
1338         .create_file_fn = skel_create_file,
1339         .close_fn = skel_close_fn,
1340         .pread_fn = skel_pread,
1341         .pread_send_fn = skel_pread_send,
1342         .pread_recv_fn = skel_pread_recv,
1343         .pwrite_fn = skel_pwrite,
1344         .pwrite_send_fn = skel_pwrite_send,
1345         .pwrite_recv_fn = skel_pwrite_recv,
1346         .lseek_fn = skel_lseek,
1347         .sendfile_fn = skel_sendfile,
1348         .recvfile_fn = skel_recvfile,
1349         .renameat_fn = skel_renameat,
1350         .fsync_send_fn = skel_fsync_send,
1351         .fsync_recv_fn = skel_fsync_recv,
1352         .stat_fn = skel_stat,
1353         .fstat_fn = skel_fstat,
1354         .lstat_fn = skel_lstat,
1355         .get_alloc_size_fn = skel_get_alloc_size,
1356         .unlink_fn = skel_unlink,
1357         .chmod_fn = skel_chmod,
1358         .fchmod_fn = skel_fchmod,
1359         .chown_fn = skel_chown,
1360         .fchown_fn = skel_fchown,
1361         .lchown_fn = skel_lchown,
1362         .chdir_fn = skel_chdir,
1363         .getwd_fn = skel_getwd,
1364         .ntimes_fn = skel_ntimes,
1365         .ftruncate_fn = skel_ftruncate,
1366         .fallocate_fn = skel_fallocate,
1367         .lock_fn = skel_lock,
1368         .kernel_flock_fn = skel_kernel_flock,
1369         .linux_setlease_fn = skel_linux_setlease,
1370         .getlock_fn = skel_getlock,
1371         .symlink_fn = skel_symlink,
1372         .readlinkat_fn = skel_vfs_readlinkat,
1373         .linkat_fn = skel_linkat,
1374         .mknodat_fn = skel_mknodat,
1375         .realpath_fn = skel_realpath,
1376         .chflags_fn = skel_chflags,
1377         .file_id_create_fn = skel_file_id_create,
1378         .fs_file_id_fn = skel_fs_file_id,
1379         .offload_read_send_fn = skel_offload_read_send,
1380         .offload_read_recv_fn = skel_offload_read_recv,
1381         .offload_write_send_fn = skel_offload_write_send,
1382         .offload_write_recv_fn = skel_offload_write_recv,
1383         .get_compression_fn = skel_get_compression,
1384         .set_compression_fn = skel_set_compression,
1385
1386         .streaminfo_fn = skel_streaminfo,
1387         .get_real_filename_fn = skel_get_real_filename,
1388         .connectpath_fn = skel_connectpath,
1389         .brl_lock_windows_fn = skel_brl_lock_windows,
1390         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1391         .strict_lock_check_fn = skel_strict_lock_check,
1392         .translate_name_fn = skel_translate_name,
1393         .fsctl_fn = skel_fsctl,
1394         .readdir_attr_fn = skel_readdir_attr,
1395         .audit_file_fn = skel_audit_file,
1396
1397         /* DOS attributes. */
1398         .get_dos_attributes_fn = skel_get_dos_attributes,
1399         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1400         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1401         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1402         .set_dos_attributes_fn = skel_set_dos_attributes,
1403         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1404
1405         /* NT ACL operations. */
1406
1407         .fget_nt_acl_fn = skel_fget_nt_acl,
1408         .get_nt_acl_fn = skel_get_nt_acl,
1409         .fset_nt_acl_fn = skel_fset_nt_acl,
1410
1411         /* POSIX ACL operations. */
1412
1413         .sys_acl_get_file_fn = skel_sys_acl_get_file,
1414         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1415         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
1416         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1417         .sys_acl_set_file_fn = skel_sys_acl_set_file,
1418         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1419         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1420
1421         /* EA operations. */
1422         .getxattr_fn = skel_getxattr,
1423         .getxattrat_send_fn = skel_getxattrat_send,
1424         .getxattrat_recv_fn = skel_getxattrat_recv,
1425         .fgetxattr_fn = skel_fgetxattr,
1426         .listxattr_fn = skel_listxattr,
1427         .flistxattr_fn = skel_flistxattr,
1428         .removexattr_fn = skel_removexattr,
1429         .fremovexattr_fn = skel_fremovexattr,
1430         .setxattr_fn = skel_setxattr,
1431         .fsetxattr_fn = skel_fsetxattr,
1432
1433         /* aio operations */
1434         .aio_force_fn = skel_aio_force,
1435
1436         /* durable handle operations */
1437         .durable_cookie_fn = skel_durable_cookie,
1438         .durable_disconnect_fn = skel_durable_disconnect,
1439         .durable_reconnect_fn = skel_durable_reconnect,
1440 };
1441
1442 static_decl_vfs;
1443 NTSTATUS vfs_skel_transparent_init(TALLOC_CTX *ctx)
1444 {
1445         /*
1446          * smb_vfs_assert_all_fns() is only needed in
1447          * order to have a complete example.
1448          *
1449          * A transparent vfs module typically don't
1450          * need to implement every calls.
1451          */
1452         smb_vfs_assert_all_fns(&skel_transparent_fns, "skel_transparent");
1453         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_transparent",
1454                                 &skel_transparent_fns);
1455 }