examples/VFS/skel_transparent.c

   1 /*
   2  * Skeleton VFS module.  Implements passthrough operation of all VFS
   3  * calls to disk functions.
   4  *
   5  * Copyright (C) Tim Potter, 1999-2000
   6  * Copyright (C) Alexander Bokovoy, 2002
   7  * Copyright (C) Stefan (metze) Metzmacher, 2003
   8  * Copyright (C) Jeremy Allison 2009
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 3 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #include "../source3/include/includes.h"
  25 #include "lib/util/tevent_unix.h"
  26 #include "lib/util/tevent_ntstatus.h"
  27
  28 /* PLEASE,PLEASE READ THE VFS MODULES CHAPTER OF THE
  29    SAMBA DEVELOPERS GUIDE!!!!!!
  30  */
  31
  32 /* If you take this file as template for your module
  33  * please make sure that you remove all skel_XXX() functions you don't
  34  * want to implement!! The passthrough operations are not
  35  * neccessary in a real module.
  36  *
  37  * --metze
  38  */
  39
  40 static int skel_connect(vfs_handle_struct *handle, const char *service,
  41                         const char *user)
  42 {
  43         return SMB_VFS_NEXT_CONNECT(handle, service, user);
  44 }
  45
  46 static void skel_disconnect(vfs_handle_struct *handle)
  47 {
  48         SMB_VFS_NEXT_DISCONNECT(handle);
  49 }
  50
  51 static uint64_t skel_disk_free(vfs_handle_struct *handle,
  52                                 const struct smb_filename *smb_fname,
  53                                 uint64_t *bsize,
  54                                 uint64_t *dfree,
  55                                 uint64_t *dsize)
  56 {
  57         return SMB_VFS_NEXT_DISK_FREE(handle, smb_fname, bsize, dfree, dsize);
  58 }
  59
  60 static int skel_get_quota(vfs_handle_struct *handle,
  61                                 const struct smb_filename *smb_fname,
  62                                 enum SMB_QUOTA_TYPE qtype,
  63                                 unid_t id,
  64                                 SMB_DISK_QUOTA *dq)
  65 {
  66         return SMB_VFS_NEXT_GET_QUOTA(handle, smb_fname, qtype, id, dq);
  67 }
  68
  69 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  70                           unid_t id, SMB_DISK_QUOTA *dq)
  71 {
  72         return SMB_VFS_NEXT_SET_QUOTA(handle, qtype, id, dq);
  73 }
  74
  75 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
  76                                      files_struct *fsp,
  77                                      struct shadow_copy_data *shadow_copy_data,
  78                                      bool labels)
  79 {
  80         return SMB_VFS_NEXT_GET_SHADOW_COPY_DATA(handle, fsp, shadow_copy_data,
  81                                                  labels);
  82 }
  83
  84 static int skel_statvfs(struct vfs_handle_struct *handle,
  85                         const struct smb_filename *smb_fname,
  86                         struct vfs_statvfs_struct *statbuf)
  87 {
  88         return SMB_VFS_NEXT_STATVFS(handle, smb_fname, statbuf);
  89 }
  90
  91 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
  92                                      enum timestamp_set_resolution *p_ts_res)
  93 {
  94         return SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
  95 }
  96
  97 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
  98                                        struct dfs_GetDFSReferral *r)
  99 {
 100         return SMB_VFS_NEXT_GET_DFS_REFERRALS(handle, r);
 101 }
 102
 103 static DIR *skel_opendir(vfs_handle_struct *handle,
 104                         const struct smb_filename *smb_fname,
 105                         const char *mask,
 106                         uint32_t attr)
 107 {
 108         return SMB_VFS_NEXT_OPENDIR(handle, smb_fname, mask, attr);
 109 }
 110
 111 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
 112                                      TALLOC_CTX *mem_ctx,
 113                                      const char *service_path,
 114                                      char **base_volume)
 115 {
 116         return SMB_VFS_NEXT_SNAP_CHECK_PATH(handle, mem_ctx, service_path,
 117                                             base_volume);
 118 }
 119
 120 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
 121                                  TALLOC_CTX *mem_ctx,
 122                                  const char *base_volume,
 123                                  time_t *tstamp,
 124                                  bool rw,
 125                                  char **base_path,
 126                                  char **snap_path)
 127 {
 128         return SMB_VFS_NEXT_SNAP_CREATE(handle, mem_ctx, base_volume, tstamp,
 129                                         rw, base_path, snap_path);
 130 }
 131
 132 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
 133                                  TALLOC_CTX *mem_ctx,
 134                                  char *base_path,
 135                                  char *snap_path)
 136 {
 137         return SMB_VFS_NEXT_SNAP_DELETE(handle, mem_ctx, base_path, snap_path);
 138 }
 139
 140 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 141                            const char *mask, uint32_t attr)
 142 {
 143         return SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
 144 }
 145
 146 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 147                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 148 {
 149         return SMB_VFS_NEXT_READDIR(handle, dirp, sbuf);
 150 }
 151
 152 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 153 {
 154         SMB_VFS_NEXT_SEEKDIR(handle, dirp, offset);
 155 }
 156
 157 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 158 {
 159         return SMB_VFS_NEXT_TELLDIR(handle, dirp);
 160 }
 161
 162 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 163 {
 164         SMB_VFS_NEXT_REWINDDIR(handle, dirp);
 165 }
 166
 167 static int skel_mkdirat(vfs_handle_struct *handle,
 168                 struct files_struct *dirfsp,
 169                 const struct smb_filename *smb_fname,
 170                 mode_t mode)
 171 {
 172         return SMB_VFS_NEXT_MKDIRAT(handle,
 173                         dirfsp,
 174                         smb_fname,
 175                         mode);
 176 }
 177
 178 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 179 {
 180         return SMB_VFS_NEXT_CLOSEDIR(handle, dir);
 181 }
 182
 183 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 184                      files_struct *fsp, int flags, mode_t mode)
 185 {
 186         return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
 187 }
 188
 189 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 190                                  struct smb_request *req,
 191                                  uint16_t root_dir_fid,
 192                                  struct smb_filename *smb_fname,
 193                                  uint32_t access_mask,
 194                                  uint32_t share_access,
 195                                  uint32_t create_disposition,
 196                                  uint32_t create_options,
 197                                  uint32_t file_attributes,
 198                                  uint32_t oplock_request,
 199                                  const struct smb2_lease *lease,
 200                                  uint64_t allocation_size,
 201                                  uint32_t private_flags,
 202                                  struct security_descriptor *sd,
 203                                  struct ea_list *ea_list,
 204                                  files_struct ** result, int *pinfo,
 205                                  const struct smb2_create_blobs *in_context_blobs,
 206                                  struct smb2_create_blobs *out_context_blobs)
 207 {
 208         return SMB_VFS_NEXT_CREATE_FILE(handle,
 209                                         req,
 210                                         root_dir_fid,
 211                                         smb_fname,
 212                                         access_mask,
 213                                         share_access,
 214                                         create_disposition,
 215                                         create_options,
 216                                         file_attributes,
 217                                         oplock_request,
 218                                         lease,
 219                                         allocation_size,
 220                                         private_flags,
 221                                         sd, ea_list, result, pinfo,
 222                                         in_context_blobs, out_context_blobs);
 223 }
 224
 225 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 226 {
 227         return SMB_VFS_NEXT_CLOSE(handle, fsp);
 228 }
 229
 230 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 231                           void *data, size_t n, off_t offset)
 232 {
 233         return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
 234 }
 235
 236 struct skel_pread_state {
 237         ssize_t ret;
 238         struct vfs_aio_state vfs_aio_state;
 239 };
 240
 241 static void skel_pread_done(struct tevent_req *subreq);
 242
 243 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 244                                           TALLOC_CTX *mem_ctx,
 245                                           struct tevent_context *ev,
 246                                           struct files_struct *fsp,
 247                                           void *data, size_t n, off_t offset)
 248 {
 249         struct tevent_req *req, *subreq;
 250         struct skel_pread_state *state;
 251
 252         req = tevent_req_create(mem_ctx, &state, struct skel_pread_state);
 253         if (req == NULL) {
 254                 return NULL;
 255         }
 256         subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
 257                                          n, offset);
 258         if (tevent_req_nomem(subreq, req)) {
 259                 return tevent_req_post(req, ev);
 260         }
 261         tevent_req_set_callback(subreq, skel_pread_done, req);
 262         return req;
 263 }
 264
 265 static void skel_pread_done(struct tevent_req *subreq)
 266 {
 267         struct tevent_req *req =
 268             tevent_req_callback_data(subreq, struct tevent_req);
 269         struct skel_pread_state *state =
 270             tevent_req_data(req, struct skel_pread_state);
 271
 272         state->ret = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
 273         TALLOC_FREE(subreq);
 274         tevent_req_done(req);
 275 }
 276
 277 static ssize_t skel_pread_recv(struct tevent_req *req,
 278                                struct vfs_aio_state *vfs_aio_state)
 279 {
 280         struct skel_pread_state *state =
 281             tevent_req_data(req, struct skel_pread_state);
 282
 283         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 284                 return -1;
 285         }
 286         *vfs_aio_state = state->vfs_aio_state;
 287         return state->ret;
 288 }
 289
 290 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 291                            const void *data, size_t n, off_t offset)
 292 {
 293         return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
 294 }
 295
 296 struct skel_pwrite_state {
 297         ssize_t ret;
 298         struct vfs_aio_state vfs_aio_state;
 299 };
 300
 301 static void skel_pwrite_done(struct tevent_req *subreq);
 302
 303 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 304                                            TALLOC_CTX *mem_ctx,
 305                                            struct tevent_context *ev,
 306                                            struct files_struct *fsp,
 307                                            const void *data,
 308                                            size_t n, off_t offset)
 309 {
 310         struct tevent_req *req, *subreq;
 311         struct skel_pwrite_state *state;
 312
 313         req = tevent_req_create(mem_ctx, &state, struct skel_pwrite_state);
 314         if (req == NULL) {
 315                 return NULL;
 316         }
 317         subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
 318                                           n, offset);
 319         if (tevent_req_nomem(subreq, req)) {
 320                 return tevent_req_post(req, ev);
 321         }
 322         tevent_req_set_callback(subreq, skel_pwrite_done, req);
 323         return req;
 324 }
 325
 326 static void skel_pwrite_done(struct tevent_req *subreq)
 327 {
 328         struct tevent_req *req =
 329             tevent_req_callback_data(subreq, struct tevent_req);
 330         struct skel_pwrite_state *state =
 331             tevent_req_data(req, struct skel_pwrite_state);
 332
 333         state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
 334         TALLOC_FREE(subreq);
 335         tevent_req_done(req);
 336 }
 337
 338 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 339                                 struct vfs_aio_state *vfs_aio_state)
 340 {
 341         struct skel_pwrite_state *state =
 342             tevent_req_data(req, struct skel_pwrite_state);
 343
 344         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 345                 return -1;
 346         }
 347         *vfs_aio_state = state->vfs_aio_state;
 348         return state->ret;
 349 }
 350
 351 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 352                         off_t offset, int whence)
 353 {
 354         return SMB_VFS_NEXT_LSEEK(handle, fsp, offset, whence);
 355 }
 356
 357 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 358                              files_struct *fromfsp, const DATA_BLOB *hdr,
 359                              off_t offset, size_t n)
 360 {
 361         return SMB_VFS_NEXT_SENDFILE(handle, tofd, fromfsp, hdr, offset, n);
 362 }
 363
 364 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 365                              files_struct *tofsp, off_t offset, size_t n)
 366 {
 367         return SMB_VFS_NEXT_RECVFILE(handle, fromfd, tofsp, offset, n);
 368 }
 369
 370 static int skel_renameat(vfs_handle_struct *handle,
 371                        files_struct *srcfsp,
 372                        const struct smb_filename *smb_fname_src,
 373                        files_struct *dstfsp,
 374                        const struct smb_filename *smb_fname_dst)
 375 {
 376         return SMB_VFS_NEXT_RENAMEAT(handle,
 377                         srcfsp,
 378                         smb_fname_src,
 379                         dstfsp,
 380                         smb_fname_dst);
 381 }
 382
 383 struct skel_fsync_state {
 384         int ret;
 385         struct vfs_aio_state vfs_aio_state;
 386 };
 387
 388 static void skel_fsync_done(struct tevent_req *subreq);
 389
 390 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 391                                           TALLOC_CTX *mem_ctx,
 392                                           struct tevent_context *ev,
 393                                           struct files_struct *fsp)
 394 {
 395         struct tevent_req *req, *subreq;
 396         struct skel_fsync_state *state;
 397
 398         req = tevent_req_create(mem_ctx, &state, struct skel_fsync_state);
 399         if (req == NULL) {
 400                 return NULL;
 401         }
 402         subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
 403         if (tevent_req_nomem(subreq, req)) {
 404                 return tevent_req_post(req, ev);
 405         }
 406         tevent_req_set_callback(subreq, skel_fsync_done, req);
 407         return req;
 408 }
 409
 410 static void skel_fsync_done(struct tevent_req *subreq)
 411 {
 412         struct tevent_req *req =
 413             tevent_req_callback_data(subreq, struct tevent_req);
 414         struct skel_fsync_state *state =
 415             tevent_req_data(req, struct skel_fsync_state);
 416
 417         state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->vfs_aio_state);
 418         TALLOC_FREE(subreq);
 419         tevent_req_done(req);
 420 }
 421
 422 static int skel_fsync_recv(struct tevent_req *req,
 423                            struct vfs_aio_state *vfs_aio_state)
 424 {
 425         struct skel_fsync_state *state =
 426             tevent_req_data(req, struct skel_fsync_state);
 427
 428         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 429                 return -1;
 430         }
 431         *vfs_aio_state = state->vfs_aio_state;
 432         return state->ret;
 433 }
 434
 435 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 436 {
 437         return SMB_VFS_NEXT_STAT(handle, smb_fname);
 438 }
 439
 440 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 441                       SMB_STRUCT_STAT *sbuf)
 442 {
 443         return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
 444 }
 445
 446 static int skel_lstat(vfs_handle_struct *handle,
 447                       struct smb_filename *smb_fname)
 448 {
 449         return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
 450 }
 451
 452 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 453                                     struct files_struct *fsp,
 454                                     const SMB_STRUCT_STAT *sbuf)
 455 {
 456         return SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
 457 }
 458
 459 static int skel_unlinkat(vfs_handle_struct *handle,
 460                         struct files_struct *dirfsp,
 461                         const struct smb_filename *smb_fname,
 462                         int flags)
 463 {
 464         return SMB_VFS_NEXT_UNLINKAT(handle,
 465                         dirfsp,
 466                         smb_fname,
 467                         flags);
 468 }
 469
 470 static int skel_chmod(vfs_handle_struct *handle,
 471                         const struct smb_filename *smb_fname,
 472                         mode_t mode)
 473 {
 474         return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
 475 }
 476
 477 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 478                        mode_t mode)
 479 {
 480         return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
 481 }
 482
 483 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 484                        uid_t uid, gid_t gid)
 485 {
 486         return SMB_VFS_NEXT_FCHOWN(handle, fsp, uid, gid);
 487 }
 488
 489 static int skel_lchown(vfs_handle_struct *handle,
 490                         const struct smb_filename *smb_fname,
 491                         uid_t uid,
 492                         gid_t gid)
 493 {
 494         return SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
 495 }
 496
 497 static int skel_chdir(vfs_handle_struct *handle,
 498                         const struct smb_filename *smb_fname)
 499 {
 500         return SMB_VFS_NEXT_CHDIR(handle, smb_fname);
 501 }
 502
 503 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 504                                         TALLOC_CTX *ctx)
 505 {
 506         return SMB_VFS_NEXT_GETWD(handle, ctx);
 507 }
 508
 509 static int skel_ntimes(vfs_handle_struct *handle,
 510                        const struct smb_filename *smb_fname,
 511                        struct smb_file_time *ft)
 512 {
 513         return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
 514 }
 515
 516 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 517                           off_t offset)
 518 {
 519         return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
 520 }
 521
 522 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 523                           uint32_t mode, off_t offset, off_t len)
 524 {
 525         return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
 526 }
 527
 528 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 529                       off_t offset, off_t count, int type)
 530 {
 531         return SMB_VFS_NEXT_LOCK(handle, fsp, op, offset, count, type);
 532 }
 533
 534 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 535                              struct files_struct *fsp, uint32_t share_mode,
 536                              uint32_t access_mask)
 537 {
 538         return SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp, share_mode, access_mask);
 539 }
 540
 541 static int skel_fcntl(struct vfs_handle_struct *handle,
 542                       struct files_struct *fsp, int cmd, va_list cmd_arg)
 543 {
 544         void *arg;
 545         va_list dup_cmd_arg;
 546         int result;
 547
 548         va_copy(dup_cmd_arg, cmd_arg);
 549         arg = va_arg(dup_cmd_arg, void *);
 550         result = SMB_VFS_NEXT_FCNTL(handle, fsp, cmd, arg);
 551         va_end(dup_cmd_arg);
 552
 553         return result;
 554 }
 555
 556 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 557                                struct files_struct *fsp, int leasetype)
 558 {
 559         return SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, leasetype);
 560 }
 561
 562 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 563                          off_t *poffset, off_t *pcount, int *ptype,
 564                          pid_t *ppid)
 565 {
 566         return SMB_VFS_NEXT_GETLOCK(handle, fsp, poffset, pcount, ptype, ppid);
 567 }
 568
 569 static int skel_symlinkat(vfs_handle_struct *handle,
 570                         const char *link_contents,
 571                         struct files_struct *dirfsp,
 572                         const struct smb_filename *new_smb_fname)
 573 {
 574         return SMB_VFS_NEXT_SYMLINKAT(handle,
 575                                 link_contents,
 576                                 dirfsp,
 577                                 new_smb_fname);
 578 }
 579
 580 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
 581                         files_struct *dirfsp,
 582                         const struct smb_filename *smb_fname,
 583                         char *buf,
 584                         size_t bufsiz)
 585 {
 586         return SMB_VFS_NEXT_READLINKAT(handle,
 587                         dirfsp,
 588                         smb_fname,
 589                         buf,
 590                         bufsiz);
 591 }
 592
 593 static int skel_linkat(vfs_handle_struct *handle,
 594                         files_struct *srcfsp,
 595                         const struct smb_filename *old_smb_fname,
 596                         files_struct *dstfsp,
 597                         const struct smb_filename *new_smb_fname,
 598                         int flags)
 599 {
 600         return SMB_VFS_NEXT_LINKAT(handle,
 601                         srcfsp,
 602                         old_smb_fname,
 603                         dstfsp,
 604                         new_smb_fname,
 605                         flags);
 606 }
 607
 608 static int skel_mknodat(vfs_handle_struct *handle,
 609                         files_struct *dirfsp,
 610                         const struct smb_filename *smb_fname,
 611                         mode_t mode,
 612                         SMB_DEV_T dev)
 613 {
 614         return SMB_VFS_NEXT_MKNODAT(handle,
 615                         dirfsp,
 616                         smb_fname,
 617                         mode,
 618                         dev);
 619 }
 620
 621 static struct smb_filename *skel_realpath(vfs_handle_struct *handle,
 622                         TALLOC_CTX *ctx,
 623                         const struct smb_filename *smb_fname)
 624 {
 625         return SMB_VFS_NEXT_REALPATH(handle, ctx, smb_fname);
 626 }
 627
 628 static int skel_chflags(vfs_handle_struct *handle,
 629                         const struct smb_filename *smb_fname,
 630                         uint flags)
 631 {
 632         return SMB_VFS_NEXT_CHFLAGS(handle, smb_fname, flags);
 633 }
 634
 635 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 636                                           const SMB_STRUCT_STAT *sbuf)
 637 {
 638         return SMB_VFS_NEXT_FILE_ID_CREATE(handle, sbuf);
 639 }
 640
 641 static uint64_t skel_fs_file_id(vfs_handle_struct *handle,
 642                                 const SMB_STRUCT_STAT *sbuf)
 643 {
 644         return SMB_VFS_NEXT_FS_FILE_ID(handle, sbuf);
 645 }
 646
 647 struct skel_offload_read_state {
 648         struct vfs_handle_struct *handle;
 649         DATA_BLOB token;
 650 };
 651
 652 static void skel_offload_read_done(struct tevent_req *subreq);
 653
 654 static struct tevent_req *skel_offload_read_send(
 655         TALLOC_CTX *mem_ctx,
 656         struct tevent_context *ev,
 657         struct vfs_handle_struct *handle,
 658         struct files_struct *fsp,
 659         uint32_t fsctl,
 660         uint32_t ttl,
 661         off_t offset,
 662         size_t to_copy)
 663 {
 664         struct tevent_req *req = NULL;
 665         struct skel_offload_read_state *state = NULL;
 666         struct tevent_req *subreq = NULL;
 667
 668         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 669         if (req == NULL) {
 670                 return NULL;
 671         }
 672         *state = (struct skel_offload_read_state) {
 673                 .handle = handle,
 674         };
 675
 676         subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
 677                                                 fsctl, ttl, offset, to_copy);
 678         if (tevent_req_nomem(subreq, req)) {
 679                 return tevent_req_post(req, ev);
 680         }
 681         tevent_req_set_callback(subreq, skel_offload_read_done, req);
 682         return req;
 683 }
 684
 685 static void skel_offload_read_done(struct tevent_req *subreq)
 686 {
 687         struct tevent_req *req = tevent_req_callback_data(
 688                 subreq, struct tevent_req);
 689         struct skel_offload_read_state *state = tevent_req_data(
 690                 req, struct skel_offload_read_state);
 691         NTSTATUS status;
 692
 693         status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
 694                                                 state->handle,
 695                                                 state,
 696                                                 &state->token);
 697         TALLOC_FREE(subreq);
 698         if (tevent_req_nterror(req, status)) {
 699                 return;
 700         }
 701
 702         tevent_req_done(req);
 703         return;
 704 }
 705
 706 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 707                                        struct vfs_handle_struct *handle,
 708                                        TALLOC_CTX *mem_ctx,
 709                                        DATA_BLOB *_token)
 710 {
 711         struct skel_offload_read_state *state = tevent_req_data(
 712                 req, struct skel_offload_read_state);
 713         DATA_BLOB token;
 714         NTSTATUS status;
 715
 716         if (tevent_req_is_nterror(req, &status)) {
 717                 tevent_req_received(req);
 718                 return status;
 719         }
 720
 721         token = data_blob_talloc(mem_ctx,
 722                                  state->token.data,
 723                                  state->token.length);
 724
 725         tevent_req_received(req);
 726
 727         if (token.data == NULL) {
 728                 return NT_STATUS_NO_MEMORY;
 729         }
 730
 731         *_token = token;
 732         return NT_STATUS_OK;
 733 }
 734
 735 struct skel_offload_write_state {
 736         struct vfs_handle_struct *handle;
 737         off_t copied;
 738 };
 739 static void skel_offload_write_done(struct tevent_req *subreq);
 740
 741 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 742                                                TALLOC_CTX *mem_ctx,
 743                                                struct tevent_context *ev,
 744                                                uint32_t fsctl,
 745                                                DATA_BLOB *token,
 746                                                off_t transfer_offset,
 747                                                struct files_struct *dest_fsp,
 748                                                off_t dest_off,
 749                                                off_t num)
 750 {
 751         struct tevent_req *req;
 752         struct tevent_req *subreq;
 753         struct skel_offload_write_state *state;
 754
 755         req = tevent_req_create(mem_ctx, &state, struct skel_offload_write_state);
 756         if (req == NULL) {
 757                 return NULL;
 758         }
 759
 760         state->handle = handle;
 761         subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle, state, ev,
 762                                               fsctl, token, transfer_offset,
 763                                               dest_fsp, dest_off, num);
 764         if (tevent_req_nomem(subreq, req)) {
 765                 return tevent_req_post(req, ev);
 766         }
 767
 768         tevent_req_set_callback(subreq, skel_offload_write_done, req);
 769         return req;
 770 }
 771
 772 static void skel_offload_write_done(struct tevent_req *subreq)
 773 {
 774         struct tevent_req *req = tevent_req_callback_data(
 775                 subreq, struct tevent_req);
 776         struct skel_offload_write_state *state
 777                         = tevent_req_data(req, struct skel_offload_write_state);
 778         NTSTATUS status;
 779
 780         status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
 781                                               subreq,
 782                                               &state->copied);
 783         TALLOC_FREE(subreq);
 784         if (tevent_req_nterror(req, status)) {
 785                 return;
 786         }
 787         tevent_req_done(req);
 788 }
 789
 790 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 791                                      struct tevent_req *req,
 792                                      off_t *copied)
 793 {
 794         struct skel_offload_write_state *state
 795                         = tevent_req_data(req, struct skel_offload_write_state);
 796         NTSTATUS status;
 797
 798         *copied = state->copied;
 799         if (tevent_req_is_nterror(req, &status)) {
 800                 tevent_req_received(req);
 801                 return status;
 802         }
 803
 804         tevent_req_received(req);
 805         return NT_STATUS_OK;
 806 }
 807
 808 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 809                                      TALLOC_CTX *mem_ctx,
 810                                      struct files_struct *fsp,
 811                                      struct smb_filename *smb_fname,
 812                                      uint16_t *_compression_fmt)
 813 {
 814         return SMB_VFS_NEXT_GET_COMPRESSION(handle, mem_ctx, fsp, smb_fname,
 815                                             _compression_fmt);
 816 }
 817
 818 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 819                                      TALLOC_CTX *mem_ctx,
 820                                      struct files_struct *fsp,
 821                                      uint16_t compression_fmt)
 822 {
 823         return SMB_VFS_NEXT_SET_COMPRESSION(handle, mem_ctx, fsp,
 824                                             compression_fmt);
 825 }
 826
 827 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 828                                 struct files_struct *fsp,
 829                                 const struct smb_filename *smb_fname,
 830                                 TALLOC_CTX *mem_ctx,
 831                                 unsigned int *num_streams,
 832                                 struct stream_struct **streams)
 833 {
 834         return SMB_VFS_NEXT_STREAMINFO(handle,
 835                                 fsp,
 836                                 smb_fname,
 837                                 mem_ctx,
 838                                 num_streams,
 839                                 streams);
 840 }
 841
 842 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 843                                   const char *path,
 844                                   const char *name,
 845                                   TALLOC_CTX *mem_ctx, char **found_name)
 846 {
 847         return SMB_VFS_NEXT_GET_REAL_FILENAME(handle,
 848                                               path, name, mem_ctx, found_name);
 849 }
 850
 851 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 852                                 const struct smb_filename *smb_fname)
 853 {
 854         return SMB_VFS_NEXT_CONNECTPATH(handle, smb_fname);
 855 }
 856
 857 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 858                                       struct byte_range_lock *br_lck,
 859                                       struct lock_struct *plock)
 860 {
 861         return SMB_VFS_NEXT_BRL_LOCK_WINDOWS(handle, br_lck, plock);
 862 }
 863
 864 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 865                                     struct byte_range_lock *br_lck,
 866                                     const struct lock_struct *plock)
 867 {
 868         return SMB_VFS_NEXT_BRL_UNLOCK_WINDOWS(handle, br_lck, plock);
 869 }
 870
 871 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 872                                    struct files_struct *fsp,
 873                                    struct lock_struct *plock)
 874 {
 875         return SMB_VFS_NEXT_STRICT_LOCK_CHECK(handle, fsp, plock);
 876 }
 877
 878 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 879                                     const char *mapped_name,
 880                                     enum vfs_translate_direction direction,
 881                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 882 {
 883         return SMB_VFS_NEXT_TRANSLATE_NAME(handle, mapped_name, direction,
 884                                            mem_ctx, pmapped_name);
 885 }
 886
 887 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 888                            struct files_struct *fsp,
 889                            TALLOC_CTX *ctx,
 890                            uint32_t function,
 891                            uint16_t req_flags,  /* Needed for UNICODE ... */
 892                            const uint8_t *_in_data,
 893                            uint32_t in_len,
 894                            uint8_t ** _out_data,
 895                            uint32_t max_out_len, uint32_t *out_len)
 896 {
 897         return SMB_VFS_NEXT_FSCTL(handle,
 898                                   fsp,
 899                                   ctx,
 900                                   function,
 901                                   req_flags,
 902                                   _in_data,
 903                                   in_len, _out_data, max_out_len, out_len);
 904 }
 905
 906 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 907                                   const struct smb_filename *fname,
 908                                   TALLOC_CTX *mem_ctx,
 909                                   struct readdir_attr_data **pattr_data)
 910 {
 911         return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
 912 }
 913
 914 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 915                                 struct smb_filename *smb_fname,
 916                                 uint32_t *dosmode)
 917 {
 918         return SMB_VFS_NEXT_GET_DOS_ATTRIBUTES(handle,
 919                                 smb_fname,
 920                                 dosmode);
 921 }
 922
 923 struct skel_get_dos_attributes_state {
 924         struct vfs_aio_state aio_state;
 925         uint32_t dosmode;
 926 };
 927
 928 static void skel_get_dos_attributes_done(struct tevent_req *subreq);
 929
 930 static struct tevent_req *skel_get_dos_attributes_send(
 931                         TALLOC_CTX *mem_ctx,
 932                         struct tevent_context *ev,
 933                         struct vfs_handle_struct *handle,
 934                         files_struct *dir_fsp,
 935                         struct smb_filename *smb_fname)
 936 {
 937         struct tevent_req *req = NULL;
 938         struct skel_get_dos_attributes_state *state = NULL;
 939         struct tevent_req *subreq = NULL;
 940
 941         req = tevent_req_create(mem_ctx, &state,
 942                                 struct skel_get_dos_attributes_state);
 943         if (req == NULL) {
 944                 return NULL;
 945         }
 946
 947         subreq = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_SEND(mem_ctx,
 948                                                       ev,
 949                                                       handle,
 950                                                       dir_fsp,
 951                                                       smb_fname);
 952         if (tevent_req_nomem(subreq, req)) {
 953                 return tevent_req_post(req, ev);
 954         }
 955         tevent_req_set_callback(subreq, skel_get_dos_attributes_done, req);
 956
 957         return req;
 958 }
 959
 960 static void skel_get_dos_attributes_done(struct tevent_req *subreq)
 961 {
 962         struct tevent_req *req =
 963                 tevent_req_callback_data(subreq,
 964                 struct tevent_req);
 965         struct skel_get_dos_attributes_state *state =
 966                 tevent_req_data(req,
 967                 struct skel_get_dos_attributes_state);
 968         NTSTATUS status;
 969
 970         status = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_RECV(subreq,
 971                                                       &state->aio_state,
 972                                                       &state->dosmode);
 973         TALLOC_FREE(subreq);
 974         if (tevent_req_nterror(req, status)) {
 975                 return;
 976         }
 977
 978         tevent_req_done(req);
 979         return;
 980 }
 981
 982 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
 983                                              struct vfs_aio_state *aio_state,
 984                                              uint32_t *dosmode)
 985 {
 986         struct skel_get_dos_attributes_state *state =
 987                 tevent_req_data(req,
 988                 struct skel_get_dos_attributes_state);
 989         NTSTATUS status;
 990
 991         if (tevent_req_is_nterror(req, &status)) {
 992                 tevent_req_received(req);
 993                 return status;
 994         }
 995
 996         *aio_state = state->aio_state;
 997         *dosmode = state->dosmode;
 998         tevent_req_received(req);
 999         return NT_STATUS_OK;
1000 }
1001
1002 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
1003                                 struct files_struct *fsp,
1004                                 uint32_t *dosmode)
1005 {
1006         return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle,
1007                                 fsp,
1008                                 dosmode);
1009 }
1010
1011 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
1012                                 const struct smb_filename *smb_fname,
1013                                 uint32_t dosmode)
1014 {
1015         return SMB_VFS_NEXT_SET_DOS_ATTRIBUTES(handle,
1016                                 smb_fname,
1017                                 dosmode);
1018 }
1019
1020 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
1021                                 struct files_struct *fsp,
1022                                 uint32_t dosmode)
1023 {
1024         return SMB_VFS_NEXT_FSET_DOS_ATTRIBUTES(handle,
1025                                 fsp,
1026                                 dosmode);
1027 }
1028
1029 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1030                                  uint32_t security_info,
1031                                  TALLOC_CTX *mem_ctx,
1032                                  struct security_descriptor **ppdesc)
1033 {
1034         return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, mem_ctx,
1035                                         ppdesc);
1036 }
1037
1038 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
1039                                 const struct smb_filename *smb_fname,
1040                                 uint32_t security_info,
1041                                 TALLOC_CTX *mem_ctx,
1042                                 struct security_descriptor **ppdesc)
1043 {
1044         return SMB_VFS_NEXT_GET_NT_ACL(handle,
1045                                 smb_fname,
1046                                 security_info,
1047                                 mem_ctx,
1048                                 ppdesc);
1049 }
1050
1051 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1052                                  uint32_t security_info_sent,
1053                                  const struct security_descriptor *psd)
1054 {
1055         return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
1056 }
1057
1058 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
1059                                        const struct smb_filename *smb_fname,
1060                                        SMB_ACL_TYPE_T type,
1061                                        TALLOC_CTX *mem_ctx)
1062 {
1063         return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, smb_fname, type, mem_ctx);
1064 }
1065
1066 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
1067                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
1068 {
1069         return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
1070 }
1071
1072 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
1073                                 const struct smb_filename *smb_fname,
1074                                 TALLOC_CTX *mem_ctx,
1075                                 char **blob_description,
1076                                 DATA_BLOB *blob)
1077 {
1078         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, smb_fname, mem_ctx,
1079                                                   blob_description, blob);
1080 }
1081
1082 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1083                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
1084                                     char **blob_description, DATA_BLOB *blob)
1085 {
1086         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
1087                                                 blob_description, blob);
1088 }
1089
1090 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
1091                                 const struct smb_filename *smb_fname,
1092                                 SMB_ACL_TYPE_T acltype,
1093                                 SMB_ACL_T theacl)
1094 {
1095         return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, smb_fname,
1096                         acltype, theacl);
1097 }
1098
1099 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1100                                SMB_ACL_T theacl)
1101 {
1102         return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
1103 }
1104
1105 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
1106                                         const struct smb_filename *smb_fname)
1107 {
1108         return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, smb_fname);
1109 }
1110
1111 static ssize_t skel_getxattr(vfs_handle_struct *handle,
1112                                 const struct smb_filename *smb_fname,
1113                                 const char *name,
1114                                 void *value,
1115                                 size_t size)
1116 {
1117         return SMB_VFS_NEXT_GETXATTR(handle, smb_fname, name, value, size);
1118 }
1119
1120 struct skel_getxattrat_state {
1121         struct vfs_aio_state aio_state;
1122         ssize_t xattr_size;
1123         uint8_t *xattr_value;
1124 };
1125
1126 static void skel_getxattrat_done(struct tevent_req *subreq);
1127
1128 static struct tevent_req *skel_getxattrat_send(
1129                         TALLOC_CTX *mem_ctx,
1130                         struct tevent_context *ev,
1131                         struct vfs_handle_struct *handle,
1132                         files_struct *dir_fsp,
1133                         const struct smb_filename *smb_fname,
1134                         const char *xattr_name,
1135                         size_t alloc_hint)
1136 {
1137         struct tevent_req *req = NULL;
1138         struct skel_getxattrat_state *state = NULL;
1139         struct tevent_req *subreq = NULL;
1140
1141         req = tevent_req_create(mem_ctx, &state,
1142                                 struct skel_getxattrat_state);
1143         if (req == NULL) {
1144                 return NULL;
1145         }
1146
1147         subreq = SMB_VFS_NEXT_GETXATTRAT_SEND(state,
1148                                               ev,
1149                                               handle,
1150                                               dir_fsp,
1151                                               smb_fname,
1152                                               xattr_name,
1153                                               alloc_hint);
1154         if (tevent_req_nomem(subreq, req)) {
1155                 return tevent_req_post(req, ev);
1156         }
1157         tevent_req_set_callback(subreq, skel_getxattrat_done, req);
1158
1159         return req;
1160 }
1161
1162 static void skel_getxattrat_done(struct tevent_req *subreq)
1163 {
1164         struct tevent_req *req = tevent_req_callback_data(
1165                 subreq, struct tevent_req);
1166         struct skel_getxattrat_state *state = tevent_req_data(
1167                 req, struct skel_getxattrat_state);
1168
1169         state->xattr_size = SMB_VFS_NEXT_GETXATTRAT_RECV(subreq,
1170                                                          &state->aio_state,
1171                                                          state,
1172                                                          &state->xattr_value);
1173         TALLOC_FREE(subreq);
1174         if (state->xattr_size == -1) {
1175                 tevent_req_error(req, state->aio_state.error);
1176                 return;
1177         }
1178
1179         tevent_req_done(req);
1180 }
1181
1182 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
1183                                     struct vfs_aio_state *aio_state,
1184                                     TALLOC_CTX *mem_ctx,
1185                                     uint8_t **xattr_value)
1186 {
1187         struct skel_getxattrat_state *state = tevent_req_data(
1188                 req, struct skel_getxattrat_state);
1189         ssize_t xattr_size;
1190
1191         if (tevent_req_is_unix_error(req, &aio_state->error)) {
1192                 tevent_req_received(req);
1193                 return -1;
1194         }
1195
1196         *aio_state = state->aio_state;
1197         xattr_size = state->xattr_size;
1198         if (xattr_value != NULL) {
1199                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
1200         }
1201
1202         tevent_req_received(req);
1203         return xattr_size;
1204 }
1205
1206 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
1207                               struct files_struct *fsp, const char *name,
1208                               void *value, size_t size)
1209 {
1210         return SMB_VFS_NEXT_FGETXATTR(handle, fsp, name, value, size);
1211 }
1212
1213 static ssize_t skel_listxattr(vfs_handle_struct *handle,
1214                                 const struct smb_filename *smb_fname,
1215                                 char *list,
1216                                 size_t size)
1217 {
1218         return SMB_VFS_NEXT_LISTXATTR(handle, smb_fname, list, size);
1219 }
1220
1221 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
1222                                struct files_struct *fsp, char *list,
1223                                size_t size)
1224 {
1225         return SMB_VFS_NEXT_FLISTXATTR(handle, fsp, list, size);
1226 }
1227
1228 static int skel_removexattr(vfs_handle_struct *handle,
1229                         const struct smb_filename *smb_fname,
1230                         const char *name)
1231 {
1232         return SMB_VFS_NEXT_REMOVEXATTR(handle, smb_fname, name);
1233 }
1234
1235 static int skel_fremovexattr(vfs_handle_struct *handle,
1236                              struct files_struct *fsp, const char *name)
1237 {
1238         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
1239 }
1240
1241 static int skel_setxattr(vfs_handle_struct *handle,
1242                         const struct smb_filename *smb_fname,
1243                         const char *name,
1244                         const void *value,
1245                         size_t size,
1246                         int flags)
1247 {
1248         return SMB_VFS_NEXT_SETXATTR(handle, smb_fname,
1249                         name, value, size, flags);
1250 }
1251
1252 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1253                           const char *name, const void *value, size_t size,
1254                           int flags)
1255 {
1256         return SMB_VFS_NEXT_FSETXATTR(handle, fsp, name, value, size, flags);
1257 }
1258
1259 static bool skel_aio_force(struct vfs_handle_struct *handle,
1260                            struct files_struct *fsp)
1261 {
1262         return SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
1263 }
1264
1265 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
1266                                 struct smb_filename *file,
1267                                 struct security_acl *sacl,
1268                                 uint32_t access_requested,
1269                                 uint32_t access_denied)
1270 {
1271         return SMB_VFS_NEXT_AUDIT_FILE(handle,
1272                                        file,
1273                                        sacl,
1274                                        access_requested,
1275                                        access_denied);
1276 }
1277
1278 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
1279                                     struct files_struct *fsp,
1280                                     TALLOC_CTX *mem_ctx,
1281                                     DATA_BLOB *cookie)
1282 {
1283         return SMB_VFS_NEXT_DURABLE_COOKIE(handle,
1284                                            fsp,
1285                                            mem_ctx,
1286                                            cookie);
1287 }
1288
1289 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1290                                         struct files_struct *fsp,
1291                                         const DATA_BLOB old_cookie,
1292                                         TALLOC_CTX *mem_ctx,
1293                                         DATA_BLOB *new_cookie)
1294 {
1295         return SMB_VFS_NEXT_DURABLE_DISCONNECT(handle,
1296                                                fsp,
1297                                                old_cookie,
1298                                                mem_ctx,
1299                                                new_cookie);
1300 }
1301
1302 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1303                                        struct smb_request *smb1req,
1304                                        struct smbXsrv_open *op,
1305                                        const DATA_BLOB old_cookie,
1306                                        TALLOC_CTX *mem_ctx,
1307                                        struct files_struct **fsp,
1308                                        DATA_BLOB *new_cookie)
1309 {
1310         return SMB_VFS_NEXT_DURABLE_RECONNECT(handle,
1311                                               smb1req,
1312                                               op,
1313                                               old_cookie,
1314                                               mem_ctx,
1315                                               fsp,
1316                                               new_cookie);
1317 }
1318
1319 /* VFS operations structure */
1320
1321 static struct vfs_fn_pointers skel_transparent_fns = {
1322         /* Disk operations */
1323
1324         .connect_fn = skel_connect,
1325         .disconnect_fn = skel_disconnect,
1326         .disk_free_fn = skel_disk_free,
1327         .get_quota_fn = skel_get_quota,
1328         .set_quota_fn = skel_set_quota,
1329         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1330         .statvfs_fn = skel_statvfs,
1331         .fs_capabilities_fn = skel_fs_capabilities,
1332         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1333         .snap_check_path_fn = skel_snap_check_path,
1334         .snap_create_fn = skel_snap_create,
1335         .snap_delete_fn = skel_snap_delete,
1336
1337         /* Directory operations */
1338
1339         .opendir_fn = skel_opendir,
1340         .fdopendir_fn = skel_fdopendir,
1341         .readdir_fn = skel_readdir,
1342         .seekdir_fn = skel_seekdir,
1343         .telldir_fn = skel_telldir,
1344         .rewind_dir_fn = skel_rewind_dir,
1345         .mkdirat_fn = skel_mkdirat,
1346         .closedir_fn = skel_closedir,
1347
1348         /* File operations */
1349
1350         .open_fn = skel_open,
1351         .create_file_fn = skel_create_file,
1352         .close_fn = skel_close_fn,
1353         .pread_fn = skel_pread,
1354         .pread_send_fn = skel_pread_send,
1355         .pread_recv_fn = skel_pread_recv,
1356         .pwrite_fn = skel_pwrite,
1357         .pwrite_send_fn = skel_pwrite_send,
1358         .pwrite_recv_fn = skel_pwrite_recv,
1359         .lseek_fn = skel_lseek,
1360         .sendfile_fn = skel_sendfile,
1361         .recvfile_fn = skel_recvfile,
1362         .renameat_fn = skel_renameat,
1363         .fsync_send_fn = skel_fsync_send,
1364         .fsync_recv_fn = skel_fsync_recv,
1365         .stat_fn = skel_stat,
1366         .fstat_fn = skel_fstat,
1367         .lstat_fn = skel_lstat,
1368         .get_alloc_size_fn = skel_get_alloc_size,
1369         .unlinkat_fn = skel_unlinkat,
1370         .chmod_fn = skel_chmod,
1371         .fchmod_fn = skel_fchmod,
1372         .fchown_fn = skel_fchown,
1373         .lchown_fn = skel_lchown,
1374         .chdir_fn = skel_chdir,
1375         .getwd_fn = skel_getwd,
1376         .ntimes_fn = skel_ntimes,
1377         .ftruncate_fn = skel_ftruncate,
1378         .fallocate_fn = skel_fallocate,
1379         .lock_fn = skel_lock,
1380         .kernel_flock_fn = skel_kernel_flock,
1381         .fcntl_fn = skel_fcntl,
1382         .linux_setlease_fn = skel_linux_setlease,
1383         .getlock_fn = skel_getlock,
1384         .symlinkat_fn = skel_symlinkat,
1385         .readlinkat_fn = skel_vfs_readlinkat,
1386         .linkat_fn = skel_linkat,
1387         .mknodat_fn = skel_mknodat,
1388         .realpath_fn = skel_realpath,
1389         .chflags_fn = skel_chflags,
1390         .file_id_create_fn = skel_file_id_create,
1391         .fs_file_id_fn = skel_fs_file_id,
1392         .offload_read_send_fn = skel_offload_read_send,
1393         .offload_read_recv_fn = skel_offload_read_recv,
1394         .offload_write_send_fn = skel_offload_write_send,
1395         .offload_write_recv_fn = skel_offload_write_recv,
1396         .get_compression_fn = skel_get_compression,
1397         .set_compression_fn = skel_set_compression,
1398
1399         .streaminfo_fn = skel_streaminfo,
1400         .get_real_filename_fn = skel_get_real_filename,
1401         .connectpath_fn = skel_connectpath,
1402         .brl_lock_windows_fn = skel_brl_lock_windows,
1403         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1404         .strict_lock_check_fn = skel_strict_lock_check,
1405         .translate_name_fn = skel_translate_name,
1406         .fsctl_fn = skel_fsctl,
1407         .readdir_attr_fn = skel_readdir_attr,
1408         .audit_file_fn = skel_audit_file,
1409
1410         /* DOS attributes. */
1411         .get_dos_attributes_fn = skel_get_dos_attributes,
1412         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1413         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1414         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1415         .set_dos_attributes_fn = skel_set_dos_attributes,
1416         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1417
1418         /* NT ACL operations. */
1419
1420         .fget_nt_acl_fn = skel_fget_nt_acl,
1421         .get_nt_acl_fn = skel_get_nt_acl,
1422         .fset_nt_acl_fn = skel_fset_nt_acl,
1423
1424         /* POSIX ACL operations. */
1425
1426         .sys_acl_get_file_fn = skel_sys_acl_get_file,
1427         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1428         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
1429         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1430         .sys_acl_set_file_fn = skel_sys_acl_set_file,
1431         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1432         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1433
1434         /* EA operations. */
1435         .getxattr_fn = skel_getxattr,
1436         .getxattrat_send_fn = skel_getxattrat_send,
1437         .getxattrat_recv_fn = skel_getxattrat_recv,
1438         .fgetxattr_fn = skel_fgetxattr,
1439         .listxattr_fn = skel_listxattr,
1440         .flistxattr_fn = skel_flistxattr,
1441         .removexattr_fn = skel_removexattr,
1442         .fremovexattr_fn = skel_fremovexattr,
1443         .setxattr_fn = skel_setxattr,
1444         .fsetxattr_fn = skel_fsetxattr,
1445
1446         /* aio operations */
1447         .aio_force_fn = skel_aio_force,
1448
1449         /* durable handle operations */
1450         .durable_cookie_fn = skel_durable_cookie,
1451         .durable_disconnect_fn = skel_durable_disconnect,
1452         .durable_reconnect_fn = skel_durable_reconnect,
1453 };
1454
1455 static_decl_vfs;
1456 NTSTATUS vfs_skel_transparent_init(TALLOC_CTX *ctx)
1457 {
1458         /*
1459          * smb_vfs_assert_all_fns() is only needed in
1460          * order to have a complete example.
1461          *
1462          * A transparent vfs module typically don't
1463          * need to implement every calls.
1464          */
1465         smb_vfs_assert_all_fns(&skel_transparent_fns, "skel_transparent");
1466         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_transparent",
1467                                 &skel_transparent_fns);
1468 }