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                                 const 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 *skel_readdir(vfs_handle_struct *handle,
 167                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 168 {
 169         return SMB_VFS_NEXT_READDIR(handle, dirp, sbuf);
 170 }
 171
 172 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 173 {
 174         SMB_VFS_NEXT_SEEKDIR(handle, dirp, offset);
 175 }
 176
 177 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 178 {
 179         return SMB_VFS_NEXT_TELLDIR(handle, dirp);
 180 }
 181
 182 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 183 {
 184         SMB_VFS_NEXT_REWINDDIR(handle, dirp);
 185 }
 186
 187 static int skel_mkdirat(vfs_handle_struct *handle,
 188                 struct files_struct *dirfsp,
 189                 const struct smb_filename *smb_fname,
 190                 mode_t mode)
 191 {
 192         return SMB_VFS_NEXT_MKDIRAT(handle,
 193                         dirfsp,
 194                         smb_fname,
 195                         mode);
 196 }
 197
 198 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 199 {
 200         return SMB_VFS_NEXT_CLOSEDIR(handle, dir);
 201 }
 202
 203 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 204                      files_struct *fsp, int flags, mode_t mode)
 205 {
 206         return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
 207 }
 208
 209 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 210                                  struct smb_request *req,
 211                                  uint16_t root_dir_fid,
 212                                  struct smb_filename *smb_fname,
 213                                  uint32_t access_mask,
 214                                  uint32_t share_access,
 215                                  uint32_t create_disposition,
 216                                  uint32_t create_options,
 217                                  uint32_t file_attributes,
 218                                  uint32_t oplock_request,
 219                                  const struct smb2_lease *lease,
 220                                  uint64_t allocation_size,
 221                                  uint32_t private_flags,
 222                                  struct security_descriptor *sd,
 223                                  struct ea_list *ea_list,
 224                                  files_struct ** result, int *pinfo,
 225                                  const struct smb2_create_blobs *in_context_blobs,
 226                                  struct smb2_create_blobs *out_context_blobs)
 227 {
 228         return SMB_VFS_NEXT_CREATE_FILE(handle,
 229                                         req,
 230                                         root_dir_fid,
 231                                         smb_fname,
 232                                         access_mask,
 233                                         share_access,
 234                                         create_disposition,
 235                                         create_options,
 236                                         file_attributes,
 237                                         oplock_request,
 238                                         lease,
 239                                         allocation_size,
 240                                         private_flags,
 241                                         sd, ea_list, result, pinfo,
 242                                         in_context_blobs, out_context_blobs);
 243 }
 244
 245 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 246 {
 247         return SMB_VFS_NEXT_CLOSE(handle, fsp);
 248 }
 249
 250 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 251                           void *data, size_t n, off_t offset)
 252 {
 253         return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
 254 }
 255
 256 struct skel_pread_state {
 257         ssize_t ret;
 258         struct vfs_aio_state vfs_aio_state;
 259 };
 260
 261 static void skel_pread_done(struct tevent_req *subreq);
 262
 263 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 264                                           TALLOC_CTX *mem_ctx,
 265                                           struct tevent_context *ev,
 266                                           struct files_struct *fsp,
 267                                           void *data, size_t n, off_t offset)
 268 {
 269         struct tevent_req *req, *subreq;
 270         struct skel_pread_state *state;
 271
 272         req = tevent_req_create(mem_ctx, &state, struct skel_pread_state);
 273         if (req == NULL) {
 274                 return NULL;
 275         }
 276         subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
 277                                          n, offset);
 278         if (tevent_req_nomem(subreq, req)) {
 279                 return tevent_req_post(req, ev);
 280         }
 281         tevent_req_set_callback(subreq, skel_pread_done, req);
 282         return req;
 283 }
 284
 285 static void skel_pread_done(struct tevent_req *subreq)
 286 {
 287         struct tevent_req *req =
 288             tevent_req_callback_data(subreq, struct tevent_req);
 289         struct skel_pread_state *state =
 290             tevent_req_data(req, struct skel_pread_state);
 291
 292         state->ret = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
 293         TALLOC_FREE(subreq);
 294         tevent_req_done(req);
 295 }
 296
 297 static ssize_t skel_pread_recv(struct tevent_req *req,
 298                                struct vfs_aio_state *vfs_aio_state)
 299 {
 300         struct skel_pread_state *state =
 301             tevent_req_data(req, struct skel_pread_state);
 302
 303         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 304                 return -1;
 305         }
 306         *vfs_aio_state = state->vfs_aio_state;
 307         return state->ret;
 308 }
 309
 310 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 311                            const void *data, size_t n, off_t offset)
 312 {
 313         return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
 314 }
 315
 316 struct skel_pwrite_state {
 317         ssize_t ret;
 318         struct vfs_aio_state vfs_aio_state;
 319 };
 320
 321 static void skel_pwrite_done(struct tevent_req *subreq);
 322
 323 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 324                                            TALLOC_CTX *mem_ctx,
 325                                            struct tevent_context *ev,
 326                                            struct files_struct *fsp,
 327                                            const void *data,
 328                                            size_t n, off_t offset)
 329 {
 330         struct tevent_req *req, *subreq;
 331         struct skel_pwrite_state *state;
 332
 333         req = tevent_req_create(mem_ctx, &state, struct skel_pwrite_state);
 334         if (req == NULL) {
 335                 return NULL;
 336         }
 337         subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
 338                                           n, offset);
 339         if (tevent_req_nomem(subreq, req)) {
 340                 return tevent_req_post(req, ev);
 341         }
 342         tevent_req_set_callback(subreq, skel_pwrite_done, req);
 343         return req;
 344 }
 345
 346 static void skel_pwrite_done(struct tevent_req *subreq)
 347 {
 348         struct tevent_req *req =
 349             tevent_req_callback_data(subreq, struct tevent_req);
 350         struct skel_pwrite_state *state =
 351             tevent_req_data(req, struct skel_pwrite_state);
 352
 353         state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
 354         TALLOC_FREE(subreq);
 355         tevent_req_done(req);
 356 }
 357
 358 static ssize_t skel_pwrite_recv(struct tevent_req *req,
 359                                 struct vfs_aio_state *vfs_aio_state)
 360 {
 361         struct skel_pwrite_state *state =
 362             tevent_req_data(req, struct skel_pwrite_state);
 363
 364         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 365                 return -1;
 366         }
 367         *vfs_aio_state = state->vfs_aio_state;
 368         return state->ret;
 369 }
 370
 371 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 372                         off_t offset, int whence)
 373 {
 374         return SMB_VFS_NEXT_LSEEK(handle, fsp, offset, whence);
 375 }
 376
 377 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 378                              files_struct *fromfsp, const DATA_BLOB *hdr,
 379                              off_t offset, size_t n)
 380 {
 381         return SMB_VFS_NEXT_SENDFILE(handle, tofd, fromfsp, hdr, offset, n);
 382 }
 383
 384 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 385                              files_struct *tofsp, off_t offset, size_t n)
 386 {
 387         return SMB_VFS_NEXT_RECVFILE(handle, fromfd, tofsp, offset, n);
 388 }
 389
 390 static int skel_renameat(vfs_handle_struct *handle,
 391                        files_struct *srcfsp,
 392                        const struct smb_filename *smb_fname_src,
 393                        files_struct *dstfsp,
 394                        const struct smb_filename *smb_fname_dst)
 395 {
 396         return SMB_VFS_NEXT_RENAMEAT(handle,
 397                         srcfsp,
 398                         smb_fname_src,
 399                         dstfsp,
 400                         smb_fname_dst);
 401 }
 402
 403 struct skel_fsync_state {
 404         int ret;
 405         struct vfs_aio_state vfs_aio_state;
 406 };
 407
 408 static void skel_fsync_done(struct tevent_req *subreq);
 409
 410 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 411                                           TALLOC_CTX *mem_ctx,
 412                                           struct tevent_context *ev,
 413                                           struct files_struct *fsp)
 414 {
 415         struct tevent_req *req, *subreq;
 416         struct skel_fsync_state *state;
 417
 418         req = tevent_req_create(mem_ctx, &state, struct skel_fsync_state);
 419         if (req == NULL) {
 420                 return NULL;
 421         }
 422         subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
 423         if (tevent_req_nomem(subreq, req)) {
 424                 return tevent_req_post(req, ev);
 425         }
 426         tevent_req_set_callback(subreq, skel_fsync_done, req);
 427         return req;
 428 }
 429
 430 static void skel_fsync_done(struct tevent_req *subreq)
 431 {
 432         struct tevent_req *req =
 433             tevent_req_callback_data(subreq, struct tevent_req);
 434         struct skel_fsync_state *state =
 435             tevent_req_data(req, struct skel_fsync_state);
 436
 437         state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->vfs_aio_state);
 438         TALLOC_FREE(subreq);
 439         tevent_req_done(req);
 440 }
 441
 442 static int skel_fsync_recv(struct tevent_req *req,
 443                            struct vfs_aio_state *vfs_aio_state)
 444 {
 445         struct skel_fsync_state *state =
 446             tevent_req_data(req, struct skel_fsync_state);
 447
 448         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 449                 return -1;
 450         }
 451         *vfs_aio_state = state->vfs_aio_state;
 452         return state->ret;
 453 }
 454
 455 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 456 {
 457         return SMB_VFS_NEXT_STAT(handle, smb_fname);
 458 }
 459
 460 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 461                       SMB_STRUCT_STAT *sbuf)
 462 {
 463         return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
 464 }
 465
 466 static int skel_lstat(vfs_handle_struct *handle,
 467                       struct smb_filename *smb_fname)
 468 {
 469         return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
 470 }
 471
 472 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 473                                     struct files_struct *fsp,
 474                                     const SMB_STRUCT_STAT *sbuf)
 475 {
 476         return SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
 477 }
 478
 479 static int skel_unlinkat(vfs_handle_struct *handle,
 480                         struct files_struct *dirfsp,
 481                         const struct smb_filename *smb_fname,
 482                         int flags)
 483 {
 484         return SMB_VFS_NEXT_UNLINKAT(handle,
 485                         dirfsp,
 486                         smb_fname,
 487                         flags);
 488 }
 489
 490 static int skel_chmod(vfs_handle_struct *handle,
 491                         const struct smb_filename *smb_fname,
 492                         mode_t mode)
 493 {
 494         return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
 495 }
 496
 497 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 498                        mode_t mode)
 499 {
 500         return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
 501 }
 502
 503 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 504                        uid_t uid, gid_t gid)
 505 {
 506         return SMB_VFS_NEXT_FCHOWN(handle, fsp, uid, gid);
 507 }
 508
 509 static int skel_lchown(vfs_handle_struct *handle,
 510                         const struct smb_filename *smb_fname,
 511                         uid_t uid,
 512                         gid_t gid)
 513 {
 514         return SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
 515 }
 516
 517 static int skel_chdir(vfs_handle_struct *handle,
 518                         const struct smb_filename *smb_fname)
 519 {
 520         return SMB_VFS_NEXT_CHDIR(handle, smb_fname);
 521 }
 522
 523 static struct smb_filename *skel_getwd(vfs_handle_struct *handle,
 524                                         TALLOC_CTX *ctx)
 525 {
 526         return SMB_VFS_NEXT_GETWD(handle, ctx);
 527 }
 528
 529 static int skel_ntimes(vfs_handle_struct *handle,
 530                        const struct smb_filename *smb_fname,
 531                        struct smb_file_time *ft)
 532 {
 533         return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
 534 }
 535
 536 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 537                           off_t offset)
 538 {
 539         return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
 540 }
 541
 542 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 543                           uint32_t mode, off_t offset, off_t len)
 544 {
 545         return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
 546 }
 547
 548 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 549                       off_t offset, off_t count, int type)
 550 {
 551         return SMB_VFS_NEXT_LOCK(handle, fsp, op, offset, count, type);
 552 }
 553
 554 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 555                              struct files_struct *fsp, uint32_t share_mode,
 556                              uint32_t access_mask)
 557 {
 558         return SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp, share_mode, 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                         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_chflags(vfs_handle_struct *handle,
 649                         const struct smb_filename *smb_fname,
 650                         uint flags)
 651 {
 652         return SMB_VFS_NEXT_CHFLAGS(handle, smb_fname, 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         DATA_BLOB token;
 670 };
 671
 672 static void skel_offload_read_done(struct tevent_req *subreq);
 673
 674 static struct tevent_req *skel_offload_read_send(
 675         TALLOC_CTX *mem_ctx,
 676         struct tevent_context *ev,
 677         struct vfs_handle_struct *handle,
 678         struct files_struct *fsp,
 679         uint32_t fsctl,
 680         uint32_t ttl,
 681         off_t offset,
 682         size_t to_copy)
 683 {
 684         struct tevent_req *req = NULL;
 685         struct skel_offload_read_state *state = NULL;
 686         struct tevent_req *subreq = NULL;
 687
 688         req = tevent_req_create(mem_ctx, &state, struct skel_offload_read_state);
 689         if (req == NULL) {
 690                 return NULL;
 691         }
 692         *state = (struct skel_offload_read_state) {
 693                 .handle = handle,
 694         };
 695
 696         subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
 697                                                 fsctl, ttl, offset, to_copy);
 698         if (tevent_req_nomem(subreq, req)) {
 699                 return tevent_req_post(req, ev);
 700         }
 701         tevent_req_set_callback(subreq, skel_offload_read_done, req);
 702         return req;
 703 }
 704
 705 static void skel_offload_read_done(struct tevent_req *subreq)
 706 {
 707         struct tevent_req *req = tevent_req_callback_data(
 708                 subreq, struct tevent_req);
 709         struct skel_offload_read_state *state = tevent_req_data(
 710                 req, struct skel_offload_read_state);
 711         NTSTATUS status;
 712
 713         status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
 714                                                 state->handle,
 715                                                 state,
 716                                                 &state->token);
 717         TALLOC_FREE(subreq);
 718         if (tevent_req_nterror(req, status)) {
 719                 return;
 720         }
 721
 722         tevent_req_done(req);
 723         return;
 724 }
 725
 726 static NTSTATUS skel_offload_read_recv(struct tevent_req *req,
 727                                        struct vfs_handle_struct *handle,
 728                                        TALLOC_CTX *mem_ctx,
 729                                        DATA_BLOB *_token)
 730 {
 731         struct skel_offload_read_state *state = tevent_req_data(
 732                 req, struct skel_offload_read_state);
 733         DATA_BLOB token;
 734         NTSTATUS status;
 735
 736         if (tevent_req_is_nterror(req, &status)) {
 737                 tevent_req_received(req);
 738                 return status;
 739         }
 740
 741         token = data_blob_talloc(mem_ctx,
 742                                  state->token.data,
 743                                  state->token.length);
 744
 745         tevent_req_received(req);
 746
 747         if (token.data == NULL) {
 748                 return NT_STATUS_NO_MEMORY;
 749         }
 750
 751         *_token = token;
 752         return NT_STATUS_OK;
 753 }
 754
 755 struct skel_offload_write_state {
 756         struct vfs_handle_struct *handle;
 757         off_t copied;
 758 };
 759 static void skel_offload_write_done(struct tevent_req *subreq);
 760
 761 static struct tevent_req *skel_offload_write_send(struct vfs_handle_struct *handle,
 762                                                TALLOC_CTX *mem_ctx,
 763                                                struct tevent_context *ev,
 764                                                uint32_t fsctl,
 765                                                DATA_BLOB *token,
 766                                                off_t transfer_offset,
 767                                                struct files_struct *dest_fsp,
 768                                                off_t dest_off,
 769                                                off_t num)
 770 {
 771         struct tevent_req *req;
 772         struct tevent_req *subreq;
 773         struct skel_offload_write_state *state;
 774
 775         req = tevent_req_create(mem_ctx, &state, struct skel_offload_write_state);
 776         if (req == NULL) {
 777                 return NULL;
 778         }
 779
 780         state->handle = handle;
 781         subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle, state, ev,
 782                                               fsctl, token, transfer_offset,
 783                                               dest_fsp, dest_off, num);
 784         if (tevent_req_nomem(subreq, req)) {
 785                 return tevent_req_post(req, ev);
 786         }
 787
 788         tevent_req_set_callback(subreq, skel_offload_write_done, req);
 789         return req;
 790 }
 791
 792 static void skel_offload_write_done(struct tevent_req *subreq)
 793 {
 794         struct tevent_req *req = tevent_req_callback_data(
 795                 subreq, struct tevent_req);
 796         struct skel_offload_write_state *state
 797                         = tevent_req_data(req, struct skel_offload_write_state);
 798         NTSTATUS status;
 799
 800         status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
 801                                               subreq,
 802                                               &state->copied);
 803         TALLOC_FREE(subreq);
 804         if (tevent_req_nterror(req, status)) {
 805                 return;
 806         }
 807         tevent_req_done(req);
 808 }
 809
 810 static NTSTATUS skel_offload_write_recv(struct vfs_handle_struct *handle,
 811                                      struct tevent_req *req,
 812                                      off_t *copied)
 813 {
 814         struct skel_offload_write_state *state
 815                         = tevent_req_data(req, struct skel_offload_write_state);
 816         NTSTATUS status;
 817
 818         *copied = state->copied;
 819         if (tevent_req_is_nterror(req, &status)) {
 820                 tevent_req_received(req);
 821                 return status;
 822         }
 823
 824         tevent_req_received(req);
 825         return NT_STATUS_OK;
 826 }
 827
 828 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
 829                                      TALLOC_CTX *mem_ctx,
 830                                      struct files_struct *fsp,
 831                                      struct smb_filename *smb_fname,
 832                                      uint16_t *_compression_fmt)
 833 {
 834         return SMB_VFS_NEXT_GET_COMPRESSION(handle, mem_ctx, fsp, smb_fname,
 835                                             _compression_fmt);
 836 }
 837
 838 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
 839                                      TALLOC_CTX *mem_ctx,
 840                                      struct files_struct *fsp,
 841                                      uint16_t compression_fmt)
 842 {
 843         return SMB_VFS_NEXT_SET_COMPRESSION(handle, mem_ctx, fsp,
 844                                             compression_fmt);
 845 }
 846
 847 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 848                                 struct files_struct *fsp,
 849                                 const struct smb_filename *smb_fname,
 850                                 TALLOC_CTX *mem_ctx,
 851                                 unsigned int *num_streams,
 852                                 struct stream_struct **streams)
 853 {
 854         return SMB_VFS_NEXT_STREAMINFO(handle,
 855                                 fsp,
 856                                 smb_fname,
 857                                 mem_ctx,
 858                                 num_streams,
 859                                 streams);
 860 }
 861
 862 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 863                                   const struct smb_filename *path,
 864                                   const char *name,
 865                                   TALLOC_CTX *mem_ctx, char **found_name)
 866 {
 867         return SMB_VFS_NEXT_GET_REAL_FILENAME(handle,
 868                                               path, name, mem_ctx, found_name);
 869 }
 870
 871 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 872                                 const struct smb_filename *smb_fname)
 873 {
 874         return SMB_VFS_NEXT_CONNECTPATH(handle, smb_fname);
 875 }
 876
 877 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 878                                       struct byte_range_lock *br_lck,
 879                                       struct lock_struct *plock)
 880 {
 881         return SMB_VFS_NEXT_BRL_LOCK_WINDOWS(handle, br_lck, plock);
 882 }
 883
 884 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 885                                     struct byte_range_lock *br_lck,
 886                                     const struct lock_struct *plock)
 887 {
 888         return SMB_VFS_NEXT_BRL_UNLOCK_WINDOWS(handle, br_lck, plock);
 889 }
 890
 891 static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
 892                                    struct files_struct *fsp,
 893                                    struct lock_struct *plock)
 894 {
 895         return SMB_VFS_NEXT_STRICT_LOCK_CHECK(handle, fsp, plock);
 896 }
 897
 898 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 899                                     const char *mapped_name,
 900                                     enum vfs_translate_direction direction,
 901                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 902 {
 903         return SMB_VFS_NEXT_TRANSLATE_NAME(handle, mapped_name, direction,
 904                                            mem_ctx, pmapped_name);
 905 }
 906
 907 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 908                            struct files_struct *fsp,
 909                            TALLOC_CTX *ctx,
 910                            uint32_t function,
 911                            uint16_t req_flags,  /* Needed for UNICODE ... */
 912                            const uint8_t *_in_data,
 913                            uint32_t in_len,
 914                            uint8_t ** _out_data,
 915                            uint32_t max_out_len, uint32_t *out_len)
 916 {
 917         return SMB_VFS_NEXT_FSCTL(handle,
 918                                   fsp,
 919                                   ctx,
 920                                   function,
 921                                   req_flags,
 922                                   _in_data,
 923                                   in_len, _out_data, max_out_len, out_len);
 924 }
 925
 926 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
 927                                   const struct smb_filename *fname,
 928                                   TALLOC_CTX *mem_ctx,
 929                                   struct readdir_attr_data **pattr_data)
 930 {
 931         return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
 932 }
 933
 934 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
 935                                 struct smb_filename *smb_fname,
 936                                 uint32_t *dosmode)
 937 {
 938         return SMB_VFS_NEXT_GET_DOS_ATTRIBUTES(handle,
 939                                 smb_fname,
 940                                 dosmode);
 941 }
 942
 943 struct skel_get_dos_attributes_state {
 944         struct vfs_aio_state aio_state;
 945         uint32_t dosmode;
 946 };
 947
 948 static void skel_get_dos_attributes_done(struct tevent_req *subreq);
 949
 950 static struct tevent_req *skel_get_dos_attributes_send(
 951                         TALLOC_CTX *mem_ctx,
 952                         struct tevent_context *ev,
 953                         struct vfs_handle_struct *handle,
 954                         files_struct *dir_fsp,
 955                         struct smb_filename *smb_fname)
 956 {
 957         struct tevent_req *req = NULL;
 958         struct skel_get_dos_attributes_state *state = NULL;
 959         struct tevent_req *subreq = NULL;
 960
 961         req = tevent_req_create(mem_ctx, &state,
 962                                 struct skel_get_dos_attributes_state);
 963         if (req == NULL) {
 964                 return NULL;
 965         }
 966
 967         subreq = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_SEND(mem_ctx,
 968                                                       ev,
 969                                                       handle,
 970                                                       dir_fsp,
 971                                                       smb_fname);
 972         if (tevent_req_nomem(subreq, req)) {
 973                 return tevent_req_post(req, ev);
 974         }
 975         tevent_req_set_callback(subreq, skel_get_dos_attributes_done, req);
 976
 977         return req;
 978 }
 979
 980 static void skel_get_dos_attributes_done(struct tevent_req *subreq)
 981 {
 982         struct tevent_req *req =
 983                 tevent_req_callback_data(subreq,
 984                 struct tevent_req);
 985         struct skel_get_dos_attributes_state *state =
 986                 tevent_req_data(req,
 987                 struct skel_get_dos_attributes_state);
 988         NTSTATUS status;
 989
 990         status = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_RECV(subreq,
 991                                                       &state->aio_state,
 992                                                       &state->dosmode);
 993         TALLOC_FREE(subreq);
 994         if (tevent_req_nterror(req, status)) {
 995                 return;
 996         }
 997
 998         tevent_req_done(req);
 999         return;
1000 }
1001
1002 static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
1003                                              struct vfs_aio_state *aio_state,
1004                                              uint32_t *dosmode)
1005 {
1006         struct skel_get_dos_attributes_state *state =
1007                 tevent_req_data(req,
1008                 struct skel_get_dos_attributes_state);
1009         NTSTATUS status;
1010
1011         if (tevent_req_is_nterror(req, &status)) {
1012                 tevent_req_received(req);
1013                 return status;
1014         }
1015
1016         *aio_state = state->aio_state;
1017         *dosmode = state->dosmode;
1018         tevent_req_received(req);
1019         return NT_STATUS_OK;
1020 }
1021
1022 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
1023                                 struct files_struct *fsp,
1024                                 uint32_t *dosmode)
1025 {
1026         return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle,
1027                                 fsp,
1028                                 dosmode);
1029 }
1030
1031 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
1032                                 const struct smb_filename *smb_fname,
1033                                 uint32_t dosmode)
1034 {
1035         return SMB_VFS_NEXT_SET_DOS_ATTRIBUTES(handle,
1036                                 smb_fname,
1037                                 dosmode);
1038 }
1039
1040 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
1041                                 struct files_struct *fsp,
1042                                 uint32_t dosmode)
1043 {
1044         return SMB_VFS_NEXT_FSET_DOS_ATTRIBUTES(handle,
1045                                 fsp,
1046                                 dosmode);
1047 }
1048
1049 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1050                                  uint32_t security_info,
1051                                  TALLOC_CTX *mem_ctx,
1052                                  struct security_descriptor **ppdesc)
1053 {
1054         return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, mem_ctx,
1055                                         ppdesc);
1056 }
1057
1058 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
1059                                 const struct smb_filename *smb_fname,
1060                                 uint32_t security_info,
1061                                 TALLOC_CTX *mem_ctx,
1062                                 struct security_descriptor **ppdesc)
1063 {
1064         return SMB_VFS_NEXT_GET_NT_ACL(handle,
1065                                 smb_fname,
1066                                 security_info,
1067                                 mem_ctx,
1068                                 ppdesc);
1069 }
1070
1071 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1072                                  uint32_t security_info_sent,
1073                                  const struct security_descriptor *psd)
1074 {
1075         return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
1076 }
1077
1078 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
1079                                        const struct smb_filename *smb_fname,
1080                                        SMB_ACL_TYPE_T type,
1081                                        TALLOC_CTX *mem_ctx)
1082 {
1083         return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, smb_fname, type, mem_ctx);
1084 }
1085
1086 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
1087                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
1088 {
1089         return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
1090 }
1091
1092 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
1093                                 const struct smb_filename *smb_fname,
1094                                 TALLOC_CTX *mem_ctx,
1095                                 char **blob_description,
1096                                 DATA_BLOB *blob)
1097 {
1098         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, smb_fname, mem_ctx,
1099                                                   blob_description, blob);
1100 }
1101
1102 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1103                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
1104                                     char **blob_description, DATA_BLOB *blob)
1105 {
1106         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
1107                                                 blob_description, blob);
1108 }
1109
1110 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
1111                                 const struct smb_filename *smb_fname,
1112                                 SMB_ACL_TYPE_T acltype,
1113                                 SMB_ACL_T theacl)
1114 {
1115         return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, smb_fname,
1116                         acltype, theacl);
1117 }
1118
1119 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1120                                SMB_ACL_T theacl)
1121 {
1122         return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
1123 }
1124
1125 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
1126                                         const struct smb_filename *smb_fname)
1127 {
1128         return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, smb_fname);
1129 }
1130
1131 static ssize_t skel_getxattr(vfs_handle_struct *handle,
1132                                 const struct smb_filename *smb_fname,
1133                                 const char *name,
1134                                 void *value,
1135                                 size_t size)
1136 {
1137         return SMB_VFS_NEXT_GETXATTR(handle, smb_fname, name, value, size);
1138 }
1139
1140 struct skel_getxattrat_state {
1141         struct vfs_aio_state aio_state;
1142         ssize_t xattr_size;
1143         uint8_t *xattr_value;
1144 };
1145
1146 static void skel_getxattrat_done(struct tevent_req *subreq);
1147
1148 static struct tevent_req *skel_getxattrat_send(
1149                         TALLOC_CTX *mem_ctx,
1150                         struct tevent_context *ev,
1151                         struct vfs_handle_struct *handle,
1152                         files_struct *dir_fsp,
1153                         const struct smb_filename *smb_fname,
1154                         const char *xattr_name,
1155                         size_t alloc_hint)
1156 {
1157         struct tevent_req *req = NULL;
1158         struct skel_getxattrat_state *state = NULL;
1159         struct tevent_req *subreq = NULL;
1160
1161         req = tevent_req_create(mem_ctx, &state,
1162                                 struct skel_getxattrat_state);
1163         if (req == NULL) {
1164                 return NULL;
1165         }
1166
1167         subreq = SMB_VFS_NEXT_GETXATTRAT_SEND(state,
1168                                               ev,
1169                                               handle,
1170                                               dir_fsp,
1171                                               smb_fname,
1172                                               xattr_name,
1173                                               alloc_hint);
1174         if (tevent_req_nomem(subreq, req)) {
1175                 return tevent_req_post(req, ev);
1176         }
1177         tevent_req_set_callback(subreq, skel_getxattrat_done, req);
1178
1179         return req;
1180 }
1181
1182 static void skel_getxattrat_done(struct tevent_req *subreq)
1183 {
1184         struct tevent_req *req = tevent_req_callback_data(
1185                 subreq, struct tevent_req);
1186         struct skel_getxattrat_state *state = tevent_req_data(
1187                 req, struct skel_getxattrat_state);
1188
1189         state->xattr_size = SMB_VFS_NEXT_GETXATTRAT_RECV(subreq,
1190                                                          &state->aio_state,
1191                                                          state,
1192                                                          &state->xattr_value);
1193         TALLOC_FREE(subreq);
1194         if (state->xattr_size == -1) {
1195                 tevent_req_error(req, state->aio_state.error);
1196                 return;
1197         }
1198
1199         tevent_req_done(req);
1200 }
1201
1202 static ssize_t skel_getxattrat_recv(struct tevent_req *req,
1203                                     struct vfs_aio_state *aio_state,
1204                                     TALLOC_CTX *mem_ctx,
1205                                     uint8_t **xattr_value)
1206 {
1207         struct skel_getxattrat_state *state = tevent_req_data(
1208                 req, struct skel_getxattrat_state);
1209         ssize_t xattr_size;
1210
1211         if (tevent_req_is_unix_error(req, &aio_state->error)) {
1212                 tevent_req_received(req);
1213                 return -1;
1214         }
1215
1216         *aio_state = state->aio_state;
1217         xattr_size = state->xattr_size;
1218         if (xattr_value != NULL) {
1219                 *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
1220         }
1221
1222         tevent_req_received(req);
1223         return xattr_size;
1224 }
1225
1226 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
1227                               struct files_struct *fsp, const char *name,
1228                               void *value, size_t size)
1229 {
1230         return SMB_VFS_NEXT_FGETXATTR(handle, fsp, name, value, size);
1231 }
1232
1233 static ssize_t skel_listxattr(vfs_handle_struct *handle,
1234                                 const struct smb_filename *smb_fname,
1235                                 char *list,
1236                                 size_t size)
1237 {
1238         return SMB_VFS_NEXT_LISTXATTR(handle, smb_fname, list, size);
1239 }
1240
1241 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
1242                                struct files_struct *fsp, char *list,
1243                                size_t size)
1244 {
1245         return SMB_VFS_NEXT_FLISTXATTR(handle, fsp, list, size);
1246 }
1247
1248 static int skel_removexattr(vfs_handle_struct *handle,
1249                         const struct smb_filename *smb_fname,
1250                         const char *name)
1251 {
1252         return SMB_VFS_NEXT_REMOVEXATTR(handle, smb_fname, name);
1253 }
1254
1255 static int skel_fremovexattr(vfs_handle_struct *handle,
1256                              struct files_struct *fsp, const char *name)
1257 {
1258         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
1259 }
1260
1261 static int skel_setxattr(vfs_handle_struct *handle,
1262                         const struct smb_filename *smb_fname,
1263                         const char *name,
1264                         const void *value,
1265                         size_t size,
1266                         int flags)
1267 {
1268         return SMB_VFS_NEXT_SETXATTR(handle, smb_fname,
1269                         name, value, size, flags);
1270 }
1271
1272 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1273                           const char *name, const void *value, size_t size,
1274                           int flags)
1275 {
1276         return SMB_VFS_NEXT_FSETXATTR(handle, fsp, name, value, size, flags);
1277 }
1278
1279 static bool skel_aio_force(struct vfs_handle_struct *handle,
1280                            struct files_struct *fsp)
1281 {
1282         return SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
1283 }
1284
1285 static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
1286                                 struct smb_filename *file,
1287                                 struct security_acl *sacl,
1288                                 uint32_t access_requested,
1289                                 uint32_t access_denied)
1290 {
1291         return SMB_VFS_NEXT_AUDIT_FILE(handle,
1292                                        file,
1293                                        sacl,
1294                                        access_requested,
1295                                        access_denied);
1296 }
1297
1298 static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
1299                                     struct files_struct *fsp,
1300                                     TALLOC_CTX *mem_ctx,
1301                                     DATA_BLOB *cookie)
1302 {
1303         return SMB_VFS_NEXT_DURABLE_COOKIE(handle,
1304                                            fsp,
1305                                            mem_ctx,
1306                                            cookie);
1307 }
1308
1309 static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
1310                                         struct files_struct *fsp,
1311                                         const DATA_BLOB old_cookie,
1312                                         TALLOC_CTX *mem_ctx,
1313                                         DATA_BLOB *new_cookie)
1314 {
1315         return SMB_VFS_NEXT_DURABLE_DISCONNECT(handle,
1316                                                fsp,
1317                                                old_cookie,
1318                                                mem_ctx,
1319                                                new_cookie);
1320 }
1321
1322 static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
1323                                        struct smb_request *smb1req,
1324                                        struct smbXsrv_open *op,
1325                                        const DATA_BLOB old_cookie,
1326                                        TALLOC_CTX *mem_ctx,
1327                                        struct files_struct **fsp,
1328                                        DATA_BLOB *new_cookie)
1329 {
1330         return SMB_VFS_NEXT_DURABLE_RECONNECT(handle,
1331                                               smb1req,
1332                                               op,
1333                                               old_cookie,
1334                                               mem_ctx,
1335                                               fsp,
1336                                               new_cookie);
1337 }
1338
1339 /* VFS operations structure */
1340
1341 static struct vfs_fn_pointers skel_transparent_fns = {
1342         /* Disk operations */
1343
1344         .connect_fn = skel_connect,
1345         .disconnect_fn = skel_disconnect,
1346         .disk_free_fn = skel_disk_free,
1347         .get_quota_fn = skel_get_quota,
1348         .set_quota_fn = skel_set_quota,
1349         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
1350         .statvfs_fn = skel_statvfs,
1351         .fs_capabilities_fn = skel_fs_capabilities,
1352         .get_dfs_referrals_fn = skel_get_dfs_referrals,
1353         .create_dfs_pathat_fn = skel_create_dfs_pathat,
1354         .read_dfs_pathat_fn = skel_read_dfs_pathat,
1355         .snap_check_path_fn = skel_snap_check_path,
1356         .snap_create_fn = skel_snap_create,
1357         .snap_delete_fn = skel_snap_delete,
1358
1359         /* Directory operations */
1360
1361         .fdopendir_fn = skel_fdopendir,
1362         .readdir_fn = skel_readdir,
1363         .seekdir_fn = skel_seekdir,
1364         .telldir_fn = skel_telldir,
1365         .rewind_dir_fn = skel_rewind_dir,
1366         .mkdirat_fn = skel_mkdirat,
1367         .closedir_fn = skel_closedir,
1368
1369         /* File operations */
1370
1371         .open_fn = skel_open,
1372         .create_file_fn = skel_create_file,
1373         .close_fn = skel_close_fn,
1374         .pread_fn = skel_pread,
1375         .pread_send_fn = skel_pread_send,
1376         .pread_recv_fn = skel_pread_recv,
1377         .pwrite_fn = skel_pwrite,
1378         .pwrite_send_fn = skel_pwrite_send,
1379         .pwrite_recv_fn = skel_pwrite_recv,
1380         .lseek_fn = skel_lseek,
1381         .sendfile_fn = skel_sendfile,
1382         .recvfile_fn = skel_recvfile,
1383         .renameat_fn = skel_renameat,
1384         .fsync_send_fn = skel_fsync_send,
1385         .fsync_recv_fn = skel_fsync_recv,
1386         .stat_fn = skel_stat,
1387         .fstat_fn = skel_fstat,
1388         .lstat_fn = skel_lstat,
1389         .get_alloc_size_fn = skel_get_alloc_size,
1390         .unlinkat_fn = skel_unlinkat,
1391         .chmod_fn = skel_chmod,
1392         .fchmod_fn = skel_fchmod,
1393         .fchown_fn = skel_fchown,
1394         .lchown_fn = skel_lchown,
1395         .chdir_fn = skel_chdir,
1396         .getwd_fn = skel_getwd,
1397         .ntimes_fn = skel_ntimes,
1398         .ftruncate_fn = skel_ftruncate,
1399         .fallocate_fn = skel_fallocate,
1400         .lock_fn = skel_lock,
1401         .kernel_flock_fn = skel_kernel_flock,
1402         .fcntl_fn = skel_fcntl,
1403         .linux_setlease_fn = skel_linux_setlease,
1404         .getlock_fn = skel_getlock,
1405         .symlinkat_fn = skel_symlinkat,
1406         .readlinkat_fn = skel_vfs_readlinkat,
1407         .linkat_fn = skel_linkat,
1408         .mknodat_fn = skel_mknodat,
1409         .realpath_fn = skel_realpath,
1410         .chflags_fn = skel_chflags,
1411         .file_id_create_fn = skel_file_id_create,
1412         .fs_file_id_fn = skel_fs_file_id,
1413         .offload_read_send_fn = skel_offload_read_send,
1414         .offload_read_recv_fn = skel_offload_read_recv,
1415         .offload_write_send_fn = skel_offload_write_send,
1416         .offload_write_recv_fn = skel_offload_write_recv,
1417         .get_compression_fn = skel_get_compression,
1418         .set_compression_fn = skel_set_compression,
1419
1420         .streaminfo_fn = skel_streaminfo,
1421         .get_real_filename_fn = skel_get_real_filename,
1422         .connectpath_fn = skel_connectpath,
1423         .brl_lock_windows_fn = skel_brl_lock_windows,
1424         .brl_unlock_windows_fn = skel_brl_unlock_windows,
1425         .strict_lock_check_fn = skel_strict_lock_check,
1426         .translate_name_fn = skel_translate_name,
1427         .fsctl_fn = skel_fsctl,
1428         .readdir_attr_fn = skel_readdir_attr,
1429         .audit_file_fn = skel_audit_file,
1430
1431         /* DOS attributes. */
1432         .get_dos_attributes_fn = skel_get_dos_attributes,
1433         .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
1434         .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
1435         .fget_dos_attributes_fn = skel_fget_dos_attributes,
1436         .set_dos_attributes_fn = skel_set_dos_attributes,
1437         .fset_dos_attributes_fn = skel_fset_dos_attributes,
1438
1439         /* NT ACL operations. */
1440
1441         .fget_nt_acl_fn = skel_fget_nt_acl,
1442         .get_nt_acl_fn = skel_get_nt_acl,
1443         .fset_nt_acl_fn = skel_fset_nt_acl,
1444
1445         /* POSIX ACL operations. */
1446
1447         .sys_acl_get_file_fn = skel_sys_acl_get_file,
1448         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
1449         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
1450         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
1451         .sys_acl_set_file_fn = skel_sys_acl_set_file,
1452         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
1453         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
1454
1455         /* EA operations. */
1456         .getxattr_fn = skel_getxattr,
1457         .getxattrat_send_fn = skel_getxattrat_send,
1458         .getxattrat_recv_fn = skel_getxattrat_recv,
1459         .fgetxattr_fn = skel_fgetxattr,
1460         .listxattr_fn = skel_listxattr,
1461         .flistxattr_fn = skel_flistxattr,
1462         .removexattr_fn = skel_removexattr,
1463         .fremovexattr_fn = skel_fremovexattr,
1464         .setxattr_fn = skel_setxattr,
1465         .fsetxattr_fn = skel_fsetxattr,
1466
1467         /* aio operations */
1468         .aio_force_fn = skel_aio_force,
1469
1470         /* durable handle operations */
1471         .durable_cookie_fn = skel_durable_cookie,
1472         .durable_disconnect_fn = skel_durable_disconnect,
1473         .durable_reconnect_fn = skel_durable_reconnect,
1474 };
1475
1476 static_decl_vfs;
1477 NTSTATUS vfs_skel_transparent_init(TALLOC_CTX *ctx)
1478 {
1479         /*
1480          * smb_vfs_assert_all_fns() is only needed in
1481          * order to have a complete example.
1482          *
1483          * A transparent vfs module typically don't
1484          * need to implement every calls.
1485          */
1486         smb_vfs_assert_all_fns(&skel_transparent_fns, "skel_transparent");
1487         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_transparent",
1488                                 &skel_transparent_fns);
1489 }