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  * necessary 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 NTSTATUS skel_create_dfs_pathat(struct vfs_handle_struct *handle,
 104                                 struct files_struct *dirfsp,
 105                                 const struct smb_filename *smb_fname,
 106                                 const struct referral *reflist,
 107                                 size_t referral_count)
 108 {
 109         return SMB_VFS_NEXT_CREATE_DFS_PATHAT(handle,
 110                                         dirfsp,
 111                                         smb_fname,
 112                                         reflist,
 113                                         referral_count);
 114 }
 115
 116 static NTSTATUS skel_read_dfs_pathat(struct vfs_handle_struct *handle,
 117                                 TALLOC_CTX *mem_ctx,
 118                                 struct files_struct *dirfsp,
 119                                 struct smb_filename *smb_fname,
 120                                 struct referral **ppreflist,
 121                                 size_t *preferral_count)
 122 {
 123         return SMB_VFS_NEXT_READ_DFS_PATHAT(handle,
 124                                         mem_ctx,
 125                                         dirfsp,
 126                                         smb_fname,
 127                                         ppreflist,
 128                                         preferral_count);
 129 }
 130
 131 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
 132                                      TALLOC_CTX *mem_ctx,
 133                                      const char *service_path,
 134                                      char **base_volume)
 135 {
 136         return SMB_VFS_NEXT_SNAP_CHECK_PATH(handle, mem_ctx, service_path,
 137                                             base_volume);
 138 }
 139
 140 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
 141                                  TALLOC_CTX *mem_ctx,
 142                                  const char *base_volume,
 143                                  time_t *tstamp,
 144                                  bool rw,
 145                                  char **base_path,
 146                                  char **snap_path)
 147 {
 148         return SMB_VFS_NEXT_SNAP_CREATE(handle, mem_ctx, base_volume, tstamp,
 149                                         rw, base_path, snap_path);
 150 }
 151
 152 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
 153                                  TALLOC_CTX *mem_ctx,
 154                                  char *base_path,
 155                                  char *snap_path)
 156 {
 157         return SMB_VFS_NEXT_SNAP_DELETE(handle, mem_ctx, base_path, snap_path);
 158 }
 159
 160 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 161                            const char *mask, uint32_t attr)
 162 {
 163         return SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
 164 }
 165
 166 static struct dirent *
 167 skel_readdir(vfs_handle_struct *handle, struct files_struct *dirfsp, DIR *dirp)
 168 {
 169         return SMB_VFS_NEXT_READDIR(handle, dirfsp, dirp);
 170 }
 171
 172 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 173 {
 174         SMB_VFS_NEXT_REWINDDIR(handle, dirp);
 175 }
 176
 177 static int skel_mkdirat(vfs_handle_struct *handle,
 178                 struct files_struct *dirfsp,
 179                 const struct smb_filename *smb_fname,
 180                 mode_t mode)
 181 {
 182         return SMB_VFS_NEXT_MKDIRAT(handle,
 183                         dirfsp,
 184                         smb_fname,
 185                         mode);
 186 }
 187
 188 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 189 {
 190         return SMB_VFS_NEXT_CLOSEDIR(handle, dir);
 191 }
 192
 193 static int skel_openat(struct vfs_handle_struct *handle,
 194                        const struct files_struct *dirfsp,
 195                        const struct smb_filename *smb_fname,
 196                        struct files_struct *fsp,
 197                        const struct vfs_open_how *how)
 198 {
 199         return SMB_VFS_NEXT_OPENAT(handle, dirfsp, smb_fname, fsp, how);
 200 }
 201
 202 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 203                                  struct smb_request *req,
 204                                  struct files_struct *dirfsp,
 205                                  struct smb_filename *smb_fname,
 206                                  uint32_t access_mask,
 207                                  uint32_t share_access,
 208                                  uint32_t create_disposition,
 209                                  uint32_t create_options,
 210                                  uint32_t file_attributes,
 211                                  uint32_t oplock_request,
 212                                  const struct smb2_lease *lease,
 213                                  uint64_t allocation_size,
 214                                  uint32_t private_flags,
 215                                  struct security_descriptor *sd,
 216                                  struct ea_list *ea_list,
 217                                  files_struct ** result, int *pinfo,
 218                                  const struct smb2_create_blobs *in_context_blobs,
 219                                  struct smb2_create_blobs *out_context_blobs)
 220 {
 221         return SMB_VFS_NEXT_CREATE_FILE(handle,
 222                                         req,
 223                                         dirfsp,
 224                                         smb_fname,
 225                                         access_mask,
 226                                         share_access,
 227                                         create_disposition,
 228                                         create_options,
 229                                         file_attributes,
 230                                         oplock_request,
 231                                         lease,
 232                                         allocation_size,
 233                                         private_flags,
 234                                         sd, ea_list, result, pinfo,
 235                                         in_context_blobs, out_context_blobs);
 236 }
 237
 238 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 239 {
 240         return SMB_VFS_NEXT_CLOSE(handle, fsp);
 241 }
 242
 243 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 244                           void *data, size_t n, off_t offset)
 245 {
 246         return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
 247 }
 248
 249 struct skel_pread_state {
 250         ssize_t ret;
 251         struct vfs_aio_state vfs_aio_state;
 252 };
 253
 254 static void skel_pread_done(struct tevent_req *subreq);
 255
 256 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 257                                           TALLOC_CTX *mem_ctx,
 258                                           struct tevent_context *ev,
 259                                           struct files_struct *fsp,
 260                                           void *data, size_t n, off_t offset)
 261 {
 262         struct tevent_req *req, *subreq;
 263         struct skel_pread_state *state;
 264
 265         req = tevent_req_create(mem_ctx, &state, struct skel_pread_state);
 266         if (req == NULL) {
 267                 return NULL;
 268         }
 269         subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
 270                                          n, offset);
 271         if (tevent_req_nomem(subreq, req)) {
 272                 return tevent_req_post(req, ev);
 273         }
 274         tevent_req_set_callback(subreq, skel_pread_done, req);
 275         return req;
 276 }
 277
 278 static void skel_pread_done(struct tevent_req *subreq)
 279 {
 280         struct tevent_req *req =
 281             tevent_req_callback_data(subreq, struct tevent_req);
 282         struct skel_pread_state *state =
 283             tevent_req_data(req, struct skel_pread_state);
 284
 285         state->ret = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
 286         TALLOC_FREE(subreq);
 287         tevent_req_done(req);
 288 }
 289
 290 static ssize_t skel_pread_recv(struct tevent_req *req,
 291                                struct vfs_aio_state *vfs_aio_state)
 292 {
 293         struct skel_pread_state *state =
 294             tevent_req_data(req, struct skel_pread_state);
 295
 296         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 297                 return -1;
 298         }
 299         *vfs_aio_state = state->vfs_aio_state;
 300         return state->ret;
 301 }
 302
 303 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 304                            const void *data, size_t n, off_t offset)
 305 {
 306         return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
 307 }
 308
 309 struct skel_pwrite_state {
 310         ssize_t ret;
 311         struct vfs_aio_state vfs_aio_state;
 312 };
 313
 314 static void skel_pwrite_done(struct tevent_req *subreq);
 315
 316 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 317                                            TALLOC_CTX *mem_ctx,
 318                                            struct tevent_context *ev,
 319                                            struct files_struct *fsp,
 320                                            const void *data,
 321                                            size_t n, off_t offset)
 322 {
 323         struct tevent_req *req, *subreq;
 324         struct skel_pwrite_state *state;
 325
 326         req = tevent_req_create(mem_ctx, &state, struct skel_pwrite_state);
 327         if (req == NULL) {
 328                 return NULL;
 329         }
 330         subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
 331                                           n, offset);
 332         if (tevent_req_nomem(subreq, req)) {
 333                 return tevent_req_post(req, ev);
 334         }
 335         tevent_req_set_callback(subreq, skel_pwrite_done, req);
 336         return req;
 337 }
 338
 339 static void skel_pwrite_done(struct tevent_req *subreq)
 340 {
 341         struct tevent_req *req =
 342             tevent_req_callback_data(subreq, struct tevent_req);
 343         struct skel_pwrite_state *state =
 344             tevent_req_data(req, struct skel_pwrite_state);
 345
 346         state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
 347         TALLOC_FREE(subreq);
 348         tevent_req_done(req);
 349 }
 350
 351 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 352                                 struct vfs_aio_state *vfs_aio_state)
 353 {
 354         struct skel_pwrite_state *state =
 355             tevent_req_data(req, struct skel_pwrite_state);
 356
 357         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 358                 return -1;
 359         }
 360         *vfs_aio_state = state->vfs_aio_state;
 361         return state->ret;
 362 }
 363
 364 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 365                         off_t offset, int whence)
 366 {
 367         return SMB_VFS_NEXT_LSEEK(handle, fsp, offset, whence);
 368 }
 369
 370 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 371                              files_struct *fromfsp, const DATA_BLOB *hdr,
 372                              off_t offset, size_t n)
 373 {
 374         return SMB_VFS_NEXT_SENDFILE(handle, tofd, fromfsp, hdr, offset, n);
 375 }
 376
 377 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 378                              files_struct *tofsp, off_t offset, size_t n)
 379 {
 380         return SMB_VFS_NEXT_RECVFILE(handle, fromfd, tofsp, offset, n);
 381 }
 382
 383 static int skel_renameat(vfs_handle_struct *handle,
 384                        files_struct *srcfsp,
 385                        const struct smb_filename *smb_fname_src,
 386                        files_struct *dstfsp,
 387                        const struct smb_filename *smb_fname_dst)
 388 {
 389         return SMB_VFS_NEXT_RENAMEAT(handle,
 390                         srcfsp,
 391                         smb_fname_src,
 392                         dstfsp,
 393                         smb_fname_dst);
 394 }
 395
 396 struct skel_fsync_state {
 397         int ret;
 398         struct vfs_aio_state vfs_aio_state;
 399 };
 400
 401 static void skel_fsync_done(struct tevent_req *subreq);
 402
 403 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 404                                           TALLOC_CTX *mem_ctx,
 405                                           struct tevent_context *ev,
 406                                           struct files_struct *fsp)
 407 {
 408         struct tevent_req *req, *subreq;
 409         struct skel_fsync_state *state;
 410
 411         req = tevent_req_create(mem_ctx, &state, struct skel_fsync_state);
 412         if (req == NULL) {
 413                 return NULL;
 414         }
 415         subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
 416         if (tevent_req_nomem(subreq, req)) {
 417                 return tevent_req_post(req, ev);
 418         }
 419         tevent_req_set_callback(subreq, skel_fsync_done, req);
 420         return req;
 421 }
 422
 423 static void skel_fsync_done(struct tevent_req *subreq)
 424 {
 425         struct tevent_req *req =
 426             tevent_req_callback_data(subreq, struct tevent_req);
 427         struct skel_fsync_state *state =
 428             tevent_req_data(req, struct skel_fsync_state);
 429
 430         state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->vfs_aio_state);
 431         TALLOC_FREE(subreq);
 432         tevent_req_done(req);
 433 }
 434
 435 static int skel_fsync_recv(struct tevent_req *req,
 436                            struct vfs_aio_state *vfs_aio_state)
 437 {
 438         struct skel_fsync_state *state =
 439             tevent_req_data(req, struct skel_fsync_state);
 440
 441         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 442                 return -1;
 443         }
 444         *vfs_aio_state = state->vfs_aio_state;
 445         return state->ret;
 446 }
 447
 448 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 449 {
 450         return SMB_VFS_NEXT_STAT(handle, smb_fname);
 451 }
 452
 453 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 454                       SMB_STRUCT_STAT *sbuf)
 455 {
 456         return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
 457 }
 458
 459 static int skel_lstat(vfs_handle_struct *handle,
 460                       struct smb_filename *smb_fname)
 461 {
 462         return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
 463 }
 464
 465 static int skel_fstatat(
 466         struct vfs_handle_struct *handle,
 467         const struct files_struct *dirfsp,
 468         const struct smb_filename *smb_fname,
 469         SMB_STRUCT_STAT *sbuf,
 470         int flags)
 471 {
 472         return SMB_VFS_NEXT_FSTATAT(handle, dirfsp, smb_fname, sbuf, flags);
 473 }
 474
 475 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 476                                     struct files_struct *fsp,
 477                                     const SMB_STRUCT_STAT *sbuf)
 478 {
 479         return SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
 480 }
 481
 482 static int skel_unlinkat(vfs_handle_struct *handle,
 483                         struct files_struct *dirfsp,
 484                         const struct smb_filename *smb_fname,
 485                         int flags)
 486 {
 487         return SMB_VFS_NEXT_UNLINKAT(handle,
 488                         dirfsp,
 489                         smb_fname,
 490                         flags);
 491 }
 492
 493 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 494                        mode_t mode)
 495 {
 496         return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
 497 }
 498
 499 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 500                        uid_t uid, gid_t gid)
 501 {
 502         return SMB_VFS_NEXT_FCHOWN(handle, fsp, uid, gid);
 503 }
 504
 505 static int skel_lchown(vfs_handle_struct *handle,
 506                         const struct smb_filename *smb_fname,
 507                         uid_t uid,
 508                         gid_t gid)
 509 {
 510         return SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
 511 }
 512
 513 static int skel_chdir(vfs_handle_struct *handle,
 514                         const struct smb_filename *smb_fname)
 515 {
 516         return SMB_VFS_NEXT_CHDIR(handle, smb_fname);
 517 }
 518
 519 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 520                                         TALLOC_CTX *ctx)
 521 {
 522         return SMB_VFS_NEXT_GETWD(handle, ctx);
 523 }
 524
 525 static int skel_fntimes(vfs_handle_struct *handle,
 526                         files_struct *fsp,
 527                         struct smb_file_time *ft)
 528 {
 529         return SMB_VFS_NEXT_FNTIMES(handle, fsp, ft);
 530 }
 531
 532 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 533                           off_t offset)
 534 {
 535         return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
 536 }
 537
 538 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 539                           uint32_t mode, off_t offset, off_t len)
 540 {
 541         return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
 542 }
 543
 544 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 545                       off_t offset, off_t count, int type)
 546 {
 547         return SMB_VFS_NEXT_LOCK(handle, fsp, op, offset, count, type);
 548 }
 549
 550 static int skel_filesystem_sharemode(struct vfs_handle_struct *handle,
 551                                      struct files_struct *fsp,
 552                                      uint32_t share_mode,
 553                                      uint32_t access_mask)
 554 {
 555         return SMB_VFS_NEXT_FILESYSTEM_SHAREMODE(handle,
 556                                                  fsp,
 557                                                  share_mode,
 558                                                  access_mask);
 559 }
 560
 561 static int skel_fcntl(struct vfs_handle_struct *handle,
 562                       struct files_struct *fsp, int cmd, va_list cmd_arg)
 563 {
 564         void *arg;
 565         va_list dup_cmd_arg;
 566         int result;
 567
 568         va_copy(dup_cmd_arg, cmd_arg);
 569         arg = va_arg(dup_cmd_arg, void *);
 570         result = SMB_VFS_NEXT_FCNTL(handle, fsp, cmd, arg);
 571         va_end(dup_cmd_arg);
 572
 573         return result;
 574 }
 575
 576 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 577                                struct files_struct *fsp, int leasetype)
 578 {
 579         return SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, leasetype);
 580 }
 581
 582 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 583                          off_t *poffset, off_t *pcount, int *ptype,
 584                          pid_t *ppid)
 585 {
 586         return SMB_VFS_NEXT_GETLOCK(handle, fsp, poffset, pcount, ptype, ppid);
 587 }
 588
 589 static int skel_symlinkat(vfs_handle_struct *handle,
 590                         const struct smb_filename *link_contents,
 591                         struct files_struct *dirfsp,
 592                         const struct smb_filename *new_smb_fname)
 593 {
 594         return SMB_VFS_NEXT_SYMLINKAT(handle,
 595                                 link_contents,
 596                                 dirfsp,
 597                                 new_smb_fname);
 598 }
 599
 600 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
 601                         const struct files_struct *dirfsp,
 602                         const struct smb_filename *smb_fname,
 603                         char *buf,
 604                         size_t bufsiz)
 605 {
 606         return SMB_VFS_NEXT_READLINKAT(handle,
 607                         dirfsp,
 608                         smb_fname,
 609                         buf,
 610                         bufsiz);
 611 }
 612
 613 static int skel_linkat(vfs_handle_struct *handle,
 614                         files_struct *srcfsp,
 615                         const struct smb_filename *old_smb_fname,
 616                         files_struct *dstfsp,
 617                         const struct smb_filename *new_smb_fname,
 618                         int flags)
 619 {
 620         return SMB_VFS_NEXT_LINKAT(handle,
 621                         srcfsp,
 622                         old_smb_fname,
 623                         dstfsp,
 624                         new_smb_fname,
 625                         flags);
 626 }
 627
 628 static int skel_mknodat(vfs_handle_struct *handle,
 629                         files_struct *dirfsp,
 630                         const struct smb_filename *smb_fname,
 631                         mode_t mode,
 632                         SMB_DEV_T dev)
 633 {
 634         return SMB_VFS_NEXT_MKNODAT(handle,
 635                         dirfsp,
 636                         smb_fname,
 637                         mode,
 638                         dev);
 639 }
 640
 641 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 642                         TALLOC_CTX *ctx,
 643                         const struct smb_filename *smb_fname)
 644 {
 645         return SMB_VFS_NEXT_REALPATH(handle, ctx, smb_fname);
 646 }
 647
 648 static int skel_fchflags(vfs_handle_struct *handle,
 649                         struct files_struct *fsp,
 650                         uint flags)
 651 {
 652         return SMB_VFS_NEXT_FCHFLAGS(handle, fsp, flags);
 653 }
 654
 655 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 656                                           const SMB_STRUCT_STAT *sbuf)
 657 {
 658         return SMB_VFS_NEXT_FILE_ID_CREATE(handle, sbuf);
 659 }
 660
 661 static uint64_t skel_fs_file_id(vfs_handle_struct *handle,
 662                                 const SMB_STRUCT_STAT *sbuf)
 663 {
 664         return SMB_VFS_NEXT_FS_FILE_ID(handle, sbuf);
 665 }
 666
 667 struct skel_offload_read_state {
 668         struct vfs_handle_struct *handle;
 669         uint32_t flags;
 670         uint64_t xferlen;
 671         DATA_BLOB token;
 672 };
 673
 674 static void skel_offload_read_done(struct tevent_req *subreq);
 675
 676 static struct tevent_req *skel_offload_read_send(
 677         TALLOC_CTX *mem_ctx,
 678         struct tevent_context *ev,
 679         struct vfs_handle_struct *handle,
 680         struct files_struct *fsp,
 681         uint32_t fsctl,
 682         uint32_t ttl,
 683         off_t offset,
 684         size_t to_copy)
 685 {
 686         struct tevent_req *req = NULL;
 687         struct skel_offload_read_state *state = NULL;
 688         struct tevent_req *subreq = NULL;
 689
 690         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 691         if (req == NULL) {
 692                 return NULL;
 693         }
 694         *state = (struct skel_offload_read_state) {
 695                 .handle = handle,
 696         };
 697
 698         subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
 699                                                 fsctl, ttl, offset, to_copy);
 700         if (tevent_req_nomem(subreq, req)) {
 701                 return tevent_req_post(req, ev);
 702         }
 703         tevent_req_set_callback(subreq, skel_offload_read_done, req);
 704         return req;
 705 }
 706
 707 static void skel_offload_read_done(struct tevent_req *subreq)
 708 {
 709         struct tevent_req *req = tevent_req_callback_data(
 710                 subreq, struct tevent_req);
 711         struct skel_offload_read_state *state = tevent_req_data(
 712                 req, struct skel_offload_read_state);
 713         NTSTATUS status;
 714
 715         status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
 716                                                 state->handle,
 717                                                 state,
 718                                                 &state->flags,
 719                                                 &state->xferlen,
 720                                                 &state->token);
 721         TALLOC_FREE(subreq);
 722         if (tevent_req_nterror(req, status)) {
 723                 return;
 724         }
 725
 726         tevent_req_done(req);
 727         return;
 728 }
 729
 730 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 731                                        struct vfs_handle_struct *handle,
 732                                        TALLOC_CTX *mem_ctx,
 733                                        uint32_t *flags,
 734                                        uint64_t *xferlen,
 735                                        DATA_BLOB *_token)
 736 {
 737         struct skel_offload_read_state *state = tevent_req_data(
 738                 req, struct skel_offload_read_state);
 739         DATA_BLOB token;
 740         NTSTATUS status;
 741
 742         if (tevent_req_is_nterror(req, &status)) {
 743                 tevent_req_received(req);
 744                 return status;
 745         }
 746
 747         token = data_blob_talloc(mem_ctx,
 748                                  state->token.data,
 749                                  state->token.length);
 750
 751         tevent_req_received(req);
 752
 753         if (token.data == NULL) {
 754                 return NT_STATUS_NO_MEMORY;
 755         }
 756
 757         *flags = state->flags;
 758         *xferlen = state->xferlen;
 759         *_token = token;
 760         return NT_STATUS_OK;
 761 }
 762
 763 struct skel_offload_write_state {
 764         struct vfs_handle_struct *handle;
 765         off_t copied;
 766 };
 767 static void skel_offload_write_done(struct tevent_req *subreq);
 768
 769 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 770                                                TALLOC_CTX *mem_ctx,
 771                                                struct tevent_context *ev,
 772                                                uint32_t fsctl,
 773                                                DATA_BLOB *token,
 774                                                off_t transfer_offset,
 775                                                struct files_struct *dest_fsp,
 776                                                off_t dest_off,
 777                                                off_t num)
 778 {
 779         struct tevent_req *req;
 780         struct tevent_req *subreq;
 781         struct skel_offload_write_state *state;
 782
 783         req = tevent_req_create(mem_ctx, &state, struct skel_offload_write_state);
 784         if (req == NULL) {
 785                 return NULL;
 786         }
 787
 788         state->handle = handle;
 789         subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle, state, ev,
 790                                               fsctl, token, transfer_offset,
 791                                               dest_fsp, dest_off, num);
 792         if (tevent_req_nomem(subreq, req)) {
 793                 return tevent_req_post(req, ev);
 794         }
 795
 796         tevent_req_set_callback(subreq, skel_offload_write_done, req);
 797         return req;
 798 }
 799
 800 static void skel_offload_write_done(struct tevent_req *subreq)
 801 {
 802         struct tevent_req *req = tevent_req_callback_data(
 803                 subreq, struct tevent_req);
 804         struct skel_offload_write_state *state
 805                         = tevent_req_data(req, struct skel_offload_write_state);
 806         NTSTATUS status;
 807
 808         status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
 809                                               subreq,
 810                                               &state->copied);
 811         TALLOC_FREE(subreq);
 812         if (tevent_req_nterror(req, status)) {
 813                 return;
 814         }
 815         tevent_req_done(req);
 816 }
 817
 818 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 819                                      struct tevent_req *req,
 820                                      off_t *copied)
 821 {
 822         struct skel_offload_write_state *state
 823                         = tevent_req_data(req, struct skel_offload_write_state);
 824         NTSTATUS status;
 825
 826         *copied = state->copied;
 827         if (tevent_req_is_nterror(req, &status)) {
 828                 tevent_req_received(req);
 829                 return status;
 830         }
 831
 832         tevent_req_received(req);
 833         return NT_STATUS_OK;
 834 }
 835
 836 static NTSTATUS skel_fget_compression(struct vfs_handle_struct *handle,
 837                                      TALLOC_CTX *mem_ctx,
 838                                      struct files_struct *fsp,
 839                                      uint16_t *_compression_fmt)
 840 {
 841         return SMB_VFS_NEXT_FGET_COMPRESSION(handle, mem_ctx, fsp,
 842                                             _compression_fmt);
 843 }
 844
 845 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 846                                      TALLOC_CTX *mem_ctx,
 847                                      struct files_struct *fsp,
 848                                      uint16_t compression_fmt)
 849 {
 850         return SMB_VFS_NEXT_SET_COMPRESSION(handle, mem_ctx, fsp,
 851                                             compression_fmt);
 852 }
 853
 854 static NTSTATUS skel_fstreaminfo(struct vfs_handle_struct *handle,
 855                                  struct files_struct *fsp,
 856                                  TALLOC_CTX *mem_ctx,
 857                                  unsigned int *num_streams,
 858                                  struct stream_struct **streams)
 859 {
 860         return SMB_VFS_NEXT_FSTREAMINFO(handle,
 861                                 fsp,
 862                                 mem_ctx,
 863                                 num_streams,
 864                                 streams);
 865 }
 866
 867 static NTSTATUS skel_get_real_filename_at(struct vfs_handle_struct *handle,
 868                                           struct files_struct *dirfsp,
 869                                           const char *name,
 870                                           TALLOC_CTX *mem_ctx,
 871                                           char **found_name)
 872 {
 873         return SMB_VFS_NEXT_GET_REAL_FILENAME_AT(
 874                 handle, dirfsp, name, mem_ctx, found_name);
 875 }
 876
 877 static const char *skel_connectpath(
 878         struct vfs_handle_struct *handle,
 879         const struct files_struct *dirfsp,
 880         const struct smb_filename *smb_fname)
 881 {
 882         return SMB_VFS_NEXT_CONNECTPATH(handle, dirfsp, smb_fname);
 883 }
 884
 885 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 886                                       struct byte_range_lock *br_lck,
 887                                       struct lock_struct *plock)
 888 {
 889         return SMB_VFS_NEXT_BRL_LOCK_WINDOWS(handle, br_lck, plock);
 890 }
 891
 892 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 893                                     struct byte_range_lock *br_lck,
 894                                     const struct lock_struct *plock)
 895 {
 896         return SMB_VFS_NEXT_BRL_UNLOCK_WINDOWS(handle, br_lck, plock);
 897 }
 898
 899 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 900                                    struct files_struct *fsp,
 901                                    struct lock_struct *plock)
 902 {
 903         return SMB_VFS_NEXT_STRICT_LOCK_CHECK(handle, fsp, plock);
 904 }
 905
 906 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 907                                     const char *mapped_name,
 908                                     enum vfs_translate_direction direction,
 909                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 910 {
 911         return SMB_VFS_NEXT_TRANSLATE_NAME(handle, mapped_name, direction,
 912                                            mem_ctx, pmapped_name);
 913 }
 914
 915 static NTSTATUS skel_parent_pathname(struct vfs_handle_struct *handle,
 916                                      TALLOC_CTX *mem_ctx,
 917                                      const struct smb_filename *smb_fname_in,
 918                                      struct smb_filename **parent_dir_out,
 919                                      struct smb_filename **atname_out)
 920 {
 921         return SMB_VFS_NEXT_PARENT_PATHNAME(handle,
 922                                             mem_ctx,
 923                                             smb_fname_in,
 924                                             parent_dir_out,
 925                                             atname_out);
 926 }
 927
 928 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 929                            struct files_struct *fsp,
 930                            TALLOC_CTX *ctx,
 931                            uint32_t function,
 932                            uint16_t req_flags,  /* Needed for UNICODE ... */
 933                            const uint8_t *_in_data,
 934                            uint32_t in_len,
 935                            uint8_t ** _out_data,
 936                            uint32_t max_out_len, uint32_t *out_len)
 937 {
 938         return SMB_VFS_NEXT_FSCTL(handle,
 939                                   fsp,
 940                                   ctx,
 941                                   function,
 942                                   req_flags,
 943                                   _in_data,
 944                                   in_len, _out_data, max_out_len, out_len);
 945 }
 946
 947 static NTSTATUS skel_freaddir_attr(struct vfs_handle_struct *handle,
 948                                    struct files_struct *fsp,
 949                                    TALLOC_CTX *mem_ctx,
 950                                    struct readdir_attr_data **pattr_data)
 951 {
 952         return SMB_VFS_NEXT_FREADDIR_ATTR(handle, fsp, mem_ctx, pattr_data);
 953 }
 954
 955 struct skel_get_dos_attributes_state {
 956         struct vfs_aio_state aio_state;
 957         uint32_t dosmode;
 958 };
 959
 960 static void skel_get_dos_attributes_done(struct tevent_req *subreq);
 961
 962 static struct tevent_req *skel_get_dos_attributes_send(
 963                         TALLOC_CTX *mem_ctx,
 964                         struct tevent_context *ev,
 965                         struct vfs_handle_struct *handle,
 966                         files_struct *dir_fsp,
 967                         struct smb_filename *smb_fname)
 968 {
 969         struct tevent_req *req = NULL;
 970         struct skel_get_dos_attributes_state *state = NULL;
 971         struct tevent_req *subreq = NULL;
 972
 973         req = tevent_req_create(mem_ctx, &state,
 974                                 struct skel_get_dos_attributes_state);
 975         if (req == NULL) {
 976                 return NULL;
 977         }
 978
 979         subreq = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_SEND(mem_ctx,
 980                                                       ev,
 981                                                       handle,
 982                                                       dir_fsp,
 983                                                       smb_fname);
 984         if (tevent_req_nomem(subreq, req)) {
 985                 return tevent_req_post(req, ev);
 986         }
 987         tevent_req_set_callback(subreq, skel_get_dos_attributes_done, req);
 988
 989         return req;
 990 }
 991
 992 static void skel_get_dos_attributes_done(struct tevent_req *subreq)
 993 {
 994         struct tevent_req *req =
 995                 tevent_req_callback_data(subreq,
 996                 struct tevent_req);
 997         struct skel_get_dos_attributes_state *state =
 998                 tevent_req_data(req,
 999                 struct skel_get_dos_attributes_state);
1000         NTSTATUS status;
1001
1002         status = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_RECV(subreq,
1003                                                       &state->aio_state,
1004                                                       &state->dosmode);
1005         TALLOC_FREE(subreq);
1006         if (tevent_req_nterror(req, status)) {
1007                 return;
1008         }
1009
1010         tevent_req_done(req);
1011         return;
1012 }
1013
1014 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
1015                                              struct vfs_aio_state *aio_state,
1016                                              uint32_t *dosmode)
1017 {
1018         struct skel_get_dos_attributes_state *state =
1019                 tevent_req_data(req,
1020                 struct skel_get_dos_attributes_state);
1021         NTSTATUS status;
1022
1023         if (tevent_req_is_nterror(req, &status)) {
1024                 tevent_req_received(req);
1025                 return status;
1026         }
1027
1028         *aio_state = state->aio_state;
1029         *dosmode = state->dosmode;
1030         tevent_req_received(req);
1031         return NT_STATUS_OK;
1032 }
1033
1034 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
1035                                 struct files_struct *fsp,
1036                                 uint32_t *dosmode)
1037 {
1038         return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle,
1039                                 fsp,
1040                                 dosmode);
1041 }
1042
1043 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
1044                                 struct files_struct *fsp,
1045                                 uint32_t dosmode)
1046 {
1047         return SMB_VFS_NEXT_FSET_DOS_ATTRIBUTES(handle,
1048                                 fsp,
1049                                 dosmode);
1050 }
1051
1052 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1053                                  uint32_t security_info,
1054                                  TALLOC_CTX *mem_ctx,
1055                                  struct security_descriptor **ppdesc)
1056 {
1057         return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, mem_ctx,
1058                                         ppdesc);
1059 }
1060
1061 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1062                                  uint32_t security_info_sent,
1063                                  const struct security_descriptor *psd)
1064 {
1065         return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
1066 }
1067
1068 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
1069                                      files_struct *fsp,
1070                                      SMB_ACL_TYPE_T type,
1071                                      TALLOC_CTX *mem_ctx)
1072 {
1073         return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, type, mem_ctx);
1074 }
1075
1076 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1077                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
1078                                     char **blob_description, DATA_BLOB *blob)
1079 {
1080         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
1081                                                 blob_description, blob);
1082 }
1083
1084 static int skel_sys_acl_set_fd(vfs_handle_struct *handle,
1085                                struct files_struct *fsp,
1086                                SMB_ACL_TYPE_T type,
1087                                SMB_ACL_T theacl)
1088 {
1089         return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, type, theacl);
1090 }
1091
1092 static int skel_sys_acl_delete_def_fd(vfs_handle_struct *handle,
1093                                         struct files_struct *fsp)
1094 {
1095         return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FD(handle, fsp);
1096 }
1097
1098 struct skel_getxattrat_state {
1099         struct vfs_aio_state aio_state;
1100         ssize_t xattr_size;
1101         uint8_t *xattr_value;
1102 };
1103
1104 static void skel_getxattrat_done(struct tevent_req *subreq);
1105
1106 static struct tevent_req *skel_getxattrat_send(
1107                         TALLOC_CTX *mem_ctx,
1108                         struct tevent_context *ev,
1109                         struct vfs_handle_struct *handle,
1110                         files_struct *dir_fsp,
1111                         const struct smb_filename *smb_fname,
1112                         const char *xattr_name,
1113                         size_t alloc_hint)
1114 {
1115         struct tevent_req *req = NULL;
1116         struct skel_getxattrat_state *state = NULL;
1117         struct tevent_req *subreq = NULL;
1118
1119         req = tevent_req_create(mem_ctx, &state,
1120                                 struct skel_getxattrat_state);
1121         if (req == NULL) {
1122                 return NULL;
1123         }
1124
1125         subreq = SMB_VFS_NEXT_GETXATTRAT_SEND(state,
1126                                               ev,
1127                                               handle,
1128                                               dir_fsp,
1129                                               smb_fname,
1130                                               xattr_name,
1131                                               alloc_hint);
1132         if (tevent_req_nomem(subreq, req)) {
1133                 return tevent_req_post(req, ev);
1134         }
1135         tevent_req_set_callback(subreq, skel_getxattrat_done, req);
1136
1137         return req;
1138 }
1139
1140 static void skel_getxattrat_done(struct tevent_req *subreq)
1141 {
1142         struct tevent_req *req = tevent_req_callback_data(
1143                 subreq, struct tevent_req);
1144         struct skel_getxattrat_state *state = tevent_req_data(
1145                 req, struct skel_getxattrat_state);
1146
1147         state->xattr_size = SMB_VFS_NEXT_GETXATTRAT_RECV(subreq,
1148                                                          &state->aio_state,
1149                                                          state,
1150                                                          &state->xattr_value);
1151         TALLOC_FREE(subreq);
1152         if (state->xattr_size == -1) {
1153                 tevent_req_error(req, state->aio_state.error);
1154                 return;
1155         }
1156
1157         tevent_req_done(req);
1158 }
1159
1160 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
1161                                     struct vfs_aio_state *aio_state,
1162                                     TALLOC_CTX *mem_ctx,
1163                                     uint8_t **xattr_value)
1164 {
1165         struct skel_getxattrat_state *state = tevent_req_data(
1166                 req, struct skel_getxattrat_state);
1167         ssize_t xattr_size;
1168
1169         if (tevent_req_is_unix_error(req, &aio_state->error)) {
1170                 tevent_req_received(req);
1171                 return -1;
1172         }
1173
1174         *aio_state = state->aio_state;
1175         xattr_size = state->xattr_size;
1176         if (xattr_value != NULL) {
1177                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
1178         }
1179
1180         tevent_req_received(req);
1181         return xattr_size;
1182 }
1183
1184 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
1185                               struct files_struct *fsp, const char *name,
1186                               void *value, size_t size)
1187 {
1188         return SMB_VFS_NEXT_FGETXATTR(handle, fsp, name, value, size);
1189 }
1190
1191 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
1192                                struct files_struct *fsp, char *list,
1193                                size_t size)
1194 {
1195         return SMB_VFS_NEXT_FLISTXATTR(handle, fsp, list, size);
1196 }
1197
1198 static int skel_fremovexattr(vfs_handle_struct *handle,
1199                              struct files_struct *fsp, const char *name)
1200 {
1201         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
1202 }
1203
1204 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1205                           const char *name, const void *value, size_t size,
1206                           int flags)
1207 {
1208         return SMB_VFS_NEXT_FSETXATTR(handle, fsp, name, value, size, flags);
1209 }
1210
1211 static bool skel_aio_force(struct vfs_handle_struct *handle,
1212                            struct files_struct *fsp)
1213 {
1214         return SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
1215 }
1216
1217 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
1218                                 struct smb_filename *file,
1219                                 struct security_acl *sacl,
1220                                 uint32_t access_requested,
1221                                 uint32_t access_denied)
1222 {
1223         return SMB_VFS_NEXT_AUDIT_FILE(handle,
1224                                        file,
1225                                        sacl,
1226                                        access_requested,
1227                                        access_denied);
1228 }
1229
1230 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
1231                                     struct files_struct *fsp,
1232                                     TALLOC_CTX *mem_ctx,
1233                                     DATA_BLOB *cookie)
1234 {
1235         return SMB_VFS_NEXT_DURABLE_COOKIE(handle,
1236                                            fsp,
1237                                            mem_ctx,
1238                                            cookie);
1239 }
1240
1241 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1242                                         struct files_struct *fsp,
1243                                         const DATA_BLOB old_cookie,
1244                                         TALLOC_CTX *mem_ctx,
1245                                         DATA_BLOB *new_cookie)
1246 {
1247         return SMB_VFS_NEXT_DURABLE_DISCONNECT(handle,
1248                                                fsp,
1249                                                old_cookie,
1250                                                mem_ctx,
1251                                                new_cookie);
1252 }
1253
1254 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1255                                        struct smb_request *smb1req,
1256                                        struct smbXsrv_open *op,
1257                                        const DATA_BLOB old_cookie,
1258                                        TALLOC_CTX *mem_ctx,
1259                                        struct files_struct **fsp,
1260                                        DATA_BLOB *new_cookie)
1261 {
1262         return SMB_VFS_NEXT_DURABLE_RECONNECT(handle,
1263                                               smb1req,
1264                                               op,
1265                                               old_cookie,
1266                                               mem_ctx,
1267                                               fsp,
1268                                               new_cookie);
1269 }
1270
1271 /* VFS operations structure */
1272
1273 static struct vfs_fn_pointers skel_transparent_fns = {
1274         /* Disk operations */
1275
1276         .connect_fn = skel_connect,
1277         .disconnect_fn = skel_disconnect,
1278         .disk_free_fn = skel_disk_free,
1279         .get_quota_fn = skel_get_quota,
1280         .set_quota_fn = skel_set_quota,
1281         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1282         .statvfs_fn = skel_statvfs,
1283         .fs_capabilities_fn = skel_fs_capabilities,
1284         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1285         .create_dfs_pathat_fn = skel_create_dfs_pathat,
1286         .read_dfs_pathat_fn = skel_read_dfs_pathat,
1287         .snap_check_path_fn = skel_snap_check_path,
1288         .snap_create_fn = skel_snap_create,
1289         .snap_delete_fn = skel_snap_delete,
1290
1291         /* Directory operations */
1292
1293         .fdopendir_fn = skel_fdopendir,
1294         .readdir_fn = skel_readdir,
1295         .rewind_dir_fn = skel_rewind_dir,
1296         .mkdirat_fn = skel_mkdirat,
1297         .closedir_fn = skel_closedir,
1298
1299         /* File operations */
1300
1301         .openat_fn = skel_openat,
1302         .create_file_fn = skel_create_file,
1303         .close_fn = skel_close_fn,
1304         .pread_fn = skel_pread,
1305         .pread_send_fn = skel_pread_send,
1306         .pread_recv_fn = skel_pread_recv,
1307         .pwrite_fn = skel_pwrite,
1308         .pwrite_send_fn = skel_pwrite_send,
1309         .pwrite_recv_fn = skel_pwrite_recv,
1310         .lseek_fn = skel_lseek,
1311         .sendfile_fn = skel_sendfile,
1312         .recvfile_fn = skel_recvfile,
1313         .renameat_fn = skel_renameat,
1314         .fsync_send_fn = skel_fsync_send,
1315         .fsync_recv_fn = skel_fsync_recv,
1316         .stat_fn = skel_stat,
1317         .fstat_fn = skel_fstat,
1318         .lstat_fn = skel_lstat,
1319         .fstatat_fn = skel_fstatat,
1320         .get_alloc_size_fn = skel_get_alloc_size,
1321         .unlinkat_fn = skel_unlinkat,
1322         .fchmod_fn = skel_fchmod,
1323         .fchown_fn = skel_fchown,
1324         .lchown_fn = skel_lchown,
1325         .chdir_fn = skel_chdir,
1326         .getwd_fn = skel_getwd,
1327         .fntimes_fn = skel_fntimes,
1328         .ftruncate_fn = skel_ftruncate,
1329         .fallocate_fn = skel_fallocate,
1330         .lock_fn = skel_lock,
1331         .filesystem_sharemode_fn = skel_filesystem_sharemode,
1332         .fcntl_fn = skel_fcntl,
1333         .linux_setlease_fn = skel_linux_setlease,
1334         .getlock_fn = skel_getlock,
1335         .symlinkat_fn = skel_symlinkat,
1336         .readlinkat_fn = skel_vfs_readlinkat,
1337         .linkat_fn = skel_linkat,
1338         .mknodat_fn = skel_mknodat,
1339         .realpath_fn = skel_realpath,
1340         .fchflags_fn = skel_fchflags,
1341         .file_id_create_fn = skel_file_id_create,
1342         .fs_file_id_fn = skel_fs_file_id,
1343         .offload_read_send_fn = skel_offload_read_send,
1344         .offload_read_recv_fn = skel_offload_read_recv,
1345         .offload_write_send_fn = skel_offload_write_send,
1346         .offload_write_recv_fn = skel_offload_write_recv,
1347         .fget_compression_fn = skel_fget_compression,
1348         .set_compression_fn = skel_set_compression,
1349
1350         .fstreaminfo_fn = skel_fstreaminfo,
1351         .get_real_filename_at_fn = skel_get_real_filename_at,
1352         .connectpath_fn = skel_connectpath,
1353         .brl_lock_windows_fn = skel_brl_lock_windows,
1354         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1355         .strict_lock_check_fn = skel_strict_lock_check,
1356         .translate_name_fn = skel_translate_name,
1357         .parent_pathname_fn = skel_parent_pathname,
1358         .fsctl_fn = skel_fsctl,
1359         .freaddir_attr_fn = skel_freaddir_attr,
1360         .audit_file_fn = skel_audit_file,
1361
1362         /* DOS attributes. */
1363         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1364         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1365         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1366         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1367
1368         /* NT ACL operations. */
1369
1370         .fget_nt_acl_fn = skel_fget_nt_acl,
1371         .fset_nt_acl_fn = skel_fset_nt_acl,
1372
1373         /* POSIX ACL operations. */
1374
1375         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1376         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1377         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1378         .sys_acl_delete_def_fd_fn = skel_sys_acl_delete_def_fd,
1379
1380         /* EA operations. */
1381         .getxattrat_send_fn = skel_getxattrat_send,
1382         .getxattrat_recv_fn = skel_getxattrat_recv,
1383         .fgetxattr_fn = skel_fgetxattr,
1384         .flistxattr_fn = skel_flistxattr,
1385         .fremovexattr_fn = skel_fremovexattr,
1386         .fsetxattr_fn = skel_fsetxattr,
1387
1388         /* aio operations */
1389         .aio_force_fn = skel_aio_force,
1390
1391         /* durable handle operations */
1392         .durable_cookie_fn = skel_durable_cookie,
1393         .durable_disconnect_fn = skel_durable_disconnect,
1394         .durable_reconnect_fn = skel_durable_reconnect,
1395 };
1396
1397 static_decl_vfs;
1398 NTSTATUS vfs_skel_transparent_init(TALLOC_CTX *ctx)
1399 {
1400         /*
1401          * smb_vfs_assert_all_fns() is only needed in
1402          * order to have a complete example.
1403          *
1404          * A transparent vfs module typically don't
1405          * need to implement every calls.
1406          */
1407         smb_vfs_assert_all_fns(&skel_transparent_fns, "skel_transparent");
1408         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_transparent",
1409                                 &skel_transparent_fns);
1410 }