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
  25 #include "../source3/include/includes.h"
  26 #include "lib/util/tevent_unix.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, const char *user)
  41 {
  42         return SMB_VFS_NEXT_CONNECT(handle, service, user);
  43 }
  44
  45 static void skel_disconnect(vfs_handle_struct *handle)
  46 {
  47         SMB_VFS_NEXT_DISCONNECT(handle);
  48 }
  49
  50 static uint64_t skel_disk_free(vfs_handle_struct *handle,  const char *path,
  51         bool small_query, uint64_t *bsize,
  52         uint64_t *dfree, uint64_t *dsize)
  53 {
  54         return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query, bsize,
  55                                          dfree, dsize);
  56 }
  57
  58 static int skel_get_quota(vfs_handle_struct *handle,  enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dq)
  59 {
  60         return SMB_VFS_NEXT_GET_QUOTA(handle, qtype, id, dq);
  61 }
  62
  63 static int skel_set_quota(vfs_handle_struct *handle,  enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dq)
  64 {
  65         return SMB_VFS_NEXT_SET_QUOTA(handle, qtype, id, dq);
  66 }
  67
  68 static int skel_get_shadow_copy_data(vfs_handle_struct *handle, files_struct *fsp, struct shadow_copy_data *shadow_copy_data, bool labels)
  69 {
  70         return SMB_VFS_NEXT_GET_SHADOW_COPY_DATA(handle, fsp, shadow_copy_data, labels);
  71 }
  72
  73 static int skel_statvfs(struct vfs_handle_struct *handle, const char *path, struct vfs_statvfs_struct *statbuf)
  74 {
  75         return SMB_VFS_NEXT_STATVFS(handle, path, statbuf);
  76 }
  77
  78 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res)
  79 {
  80         return SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
  81 }
  82
  83 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
  84                                        struct dfs_GetDFSReferral *r)
  85 {
  86         return SMB_VFS_NEXT_GET_DFS_REFERRALS(handle, r);
  87 }
  88
  89 static DIR *skel_opendir(vfs_handle_struct *handle,  const char *fname, const char *mask, uint32 attr)
  90 {
  91         return SMB_VFS_NEXT_OPENDIR(handle, fname, mask, attr);
  92 }
  93
  94 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32 attr)
  95 {
  96         return SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
  97 }
  98
  99 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 100                                        DIR *dirp,
 101                                        SMB_STRUCT_STAT *sbuf)
 102 {
 103         return SMB_VFS_NEXT_READDIR(handle, dirp, sbuf);
 104 }
 105
 106 static void skel_seekdir(vfs_handle_struct *handle,  DIR *dirp, long offset)
 107 {
 108         SMB_VFS_NEXT_SEEKDIR(handle, dirp, offset);
 109 }
 110
 111 static long skel_telldir(vfs_handle_struct *handle,  DIR *dirp)
 112 {
 113         return SMB_VFS_NEXT_TELLDIR(handle, dirp);
 114 }
 115
 116 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 117 {
 118         SMB_VFS_NEXT_REWINDDIR(handle, dirp);
 119 }
 120
 121 static int skel_mkdir(vfs_handle_struct *handle,  const char *path, mode_t mode)
 122 {
 123         return SMB_VFS_NEXT_MKDIR(handle, path, mode);
 124 }
 125
 126 static int skel_rmdir(vfs_handle_struct *handle,  const char *path)
 127 {
 128         return SMB_VFS_NEXT_RMDIR(handle, path);
 129 }
 130
 131 static int skel_closedir(vfs_handle_struct *handle,  DIR *dir)
 132 {
 133         return SMB_VFS_NEXT_CLOSEDIR(handle, dir);
 134 }
 135
 136 static void skel_init_search_op(struct vfs_handle_struct *handle, DIR *dirp)
 137 {
 138         SMB_VFS_NEXT_INIT_SEARCH_OP(handle, dirp);
 139 }
 140
 141 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 142                      files_struct *fsp, int flags, mode_t mode)
 143 {
 144         return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
 145 }
 146
 147 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 148                                 struct smb_request *req,
 149                                 uint16_t root_dir_fid,
 150                                 struct smb_filename *smb_fname,
 151                                 uint32_t access_mask,
 152                                 uint32_t share_access,
 153                                 uint32_t create_disposition,
 154                                 uint32_t create_options,
 155                                 uint32_t file_attributes,
 156                                 uint32_t oplock_request,
 157                                 uint64_t allocation_size,
 158                                 uint32_t private_flags,
 159                                 struct security_descriptor *sd,
 160                                 struct ea_list *ea_list,
 161                                 files_struct **result,
 162                                 int *pinfo)
 163 {
 164         return SMB_VFS_NEXT_CREATE_FILE(handle,
 165                                 req,
 166                                 root_dir_fid,
 167                                 smb_fname,
 168                                 access_mask,
 169                                 share_access,
 170                                 create_disposition,
 171                                 create_options,
 172                                 file_attributes,
 173                                 oplock_request,
 174                                 allocation_size,
 175                                 private_flags,
 176                                 sd,
 177                                 ea_list,
 178                                 result,
 179                                 pinfo);
 180 }
 181
 182 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 183 {
 184         return SMB_VFS_NEXT_CLOSE(handle, fsp);
 185 }
 186
 187 static ssize_t skel_vfs_read(vfs_handle_struct *handle, files_struct *fsp, void *data, size_t n)
 188 {
 189         return SMB_VFS_NEXT_READ(handle, fsp, data, n);
 190 }
 191
 192 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp, void *data, size_t n, off_t offset)
 193 {
 194         return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
 195 }
 196
 197 struct skel_pread_state {
 198         ssize_t ret;
 199         int err;
 200 };
 201
 202 static void skel_pread_done(struct tevent_req *subreq);
 203
 204 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 205                                           TALLOC_CTX *mem_ctx,
 206                                           struct tevent_context *ev,
 207                                           struct files_struct *fsp,
 208                                           void *data, size_t n, off_t offset)
 209 {
 210         struct tevent_req *req, *subreq;
 211         struct skel_pread_state *state;
 212
 213         req = tevent_req_create(mem_ctx, &state, struct skel_pread_state);
 214         if (req == NULL) {
 215                 return NULL;
 216         }
 217         subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
 218                                          n, offset);
 219         if (tevent_req_nomem(subreq, req)) {
 220                 return tevent_req_post(req, ev);
 221         }
 222         tevent_req_set_callback(subreq, skel_pread_done, req);
 223         return req;
 224 }
 225
 226 static void skel_pread_done(struct tevent_req *subreq)
 227 {
 228         struct tevent_req *req = tevent_req_callback_data(
 229                 subreq, struct tevent_req);
 230         struct skel_pread_state *state = tevent_req_data(
 231                 req, struct skel_pread_state);
 232
 233         state->ret = SMB_VFS_PREAD_RECV(subreq, &state->err);
 234         TALLOC_FREE(subreq);
 235         tevent_req_done(req);
 236 }
 237
 238 static ssize_t skel_pread_recv(struct tevent_req *req, int *err)
 239 {
 240         struct skel_pread_state *state = tevent_req_data(
 241                 req, struct skel_pread_state);
 242
 243         if (tevent_req_is_unix_error(req, err)) {
 244                 return -1;
 245         }
 246         *err = state->err;
 247         return state->ret;
 248 }
 249
 250 static ssize_t skel_write(vfs_handle_struct *handle, files_struct *fsp, const void *data, size_t n)
 251 {
 252         return SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
 253 }
 254
 255 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp, const void *data, size_t n, off_t offset)
 256 {
 257         return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
 258 }
 259
 260 struct skel_pwrite_state {
 261         ssize_t ret;
 262         int err;
 263 };
 264
 265 static void skel_pwrite_done(struct tevent_req *subreq);
 266
 267 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 268                                            TALLOC_CTX *mem_ctx,
 269                                            struct tevent_context *ev,
 270                                            struct files_struct *fsp,
 271                                            const void *data,
 272                                            size_t n, off_t offset)
 273 {
 274         struct tevent_req *req, *subreq;
 275         struct skel_pwrite_state *state;
 276
 277         req = tevent_req_create(mem_ctx, &state, struct skel_pwrite_state);
 278         if (req == NULL) {
 279                 return NULL;
 280         }
 281         subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
 282                                          n, offset);
 283         if (tevent_req_nomem(subreq, req)) {
 284                 return tevent_req_post(req, ev);
 285         }
 286         tevent_req_set_callback(subreq, skel_pwrite_done, req);
 287         return req;
 288 }
 289
 290 static void skel_pwrite_done(struct tevent_req *subreq)
 291 {
 292         struct tevent_req *req = tevent_req_callback_data(
 293                 subreq, struct tevent_req);
 294         struct skel_pwrite_state *state = tevent_req_data(
 295                 req, struct skel_pwrite_state);
 296
 297         state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->err);
 298         TALLOC_FREE(subreq);
 299         tevent_req_done(req);
 300 }
 301
 302 static ssize_t skel_pwrite_recv(struct tevent_req *req, int *err)
 303 {
 304         struct skel_pwrite_state *state = tevent_req_data(
 305                 req, struct skel_pwrite_state);
 306
 307         if (tevent_req_is_unix_error(req, err)) {
 308                 return -1;
 309         }
 310         *err = state->err;
 311         return state->ret;
 312 }
 313
 314 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp, off_t offset, int whence)
 315 {
 316         return SMB_VFS_NEXT_LSEEK(handle, fsp, offset, whence);
 317 }
 318
 319 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *hdr, off_t offset, size_t n)
 320 {
 321         return SMB_VFS_NEXT_SENDFILE(handle, tofd, fromfsp, hdr, offset, n);
 322 }
 323
 324 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd, files_struct *tofsp, off_t offset, size_t n)
 325 {
 326         return SMB_VFS_NEXT_RECVFILE(handle, fromfd, tofsp, offset, n);
 327 }
 328
 329 static int skel_rename(vfs_handle_struct *handle,
 330                        const struct smb_filename *smb_fname_src,
 331                        const struct smb_filename *smb_fname_dst)
 332 {
 333         return SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
 334 }
 335
 336 static int skel_fsync(vfs_handle_struct *handle, files_struct *fsp)
 337 {
 338         return SMB_VFS_NEXT_FSYNC(handle, fsp);
 339 }
 340
 341 struct skel_fsync_state {
 342         int ret;
 343         int err;
 344 };
 345
 346 static void skel_fsync_done(struct tevent_req *subreq);
 347
 348 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 349                                           TALLOC_CTX *mem_ctx,
 350                                           struct tevent_context *ev,
 351                                           struct files_struct *fsp)
 352 {
 353         struct tevent_req *req, *subreq;
 354         struct skel_fsync_state *state;
 355
 356         req = tevent_req_create(mem_ctx, &state, struct skel_fsync_state);
 357         if (req == NULL) {
 358                 return NULL;
 359         }
 360         subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
 361         if (tevent_req_nomem(subreq, req)) {
 362                 return tevent_req_post(req, ev);
 363         }
 364         tevent_req_set_callback(subreq, skel_fsync_done, req);
 365         return req;
 366 }
 367
 368 static void skel_fsync_done(struct tevent_req *subreq)
 369 {
 370         struct tevent_req *req = tevent_req_callback_data(
 371                 subreq, struct tevent_req);
 372         struct skel_fsync_state *state = tevent_req_data(
 373                 req, struct skel_fsync_state);
 374
 375         state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->err);
 376         TALLOC_FREE(subreq);
 377         tevent_req_done(req);
 378 }
 379
 380 static int skel_fsync_recv(struct tevent_req *req, int *err)
 381 {
 382         struct skel_fsync_state *state = tevent_req_data(
 383                 req, struct skel_fsync_state);
 384
 385         if (tevent_req_is_unix_error(req, err)) {
 386                 return -1;
 387         }
 388         *err = state->err;
 389         return state->ret;
 390 }
 391
 392 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 393 {
 394         return SMB_VFS_NEXT_STAT(handle, smb_fname);
 395 }
 396
 397 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp, SMB_STRUCT_STAT *sbuf)
 398 {
 399         return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
 400 }
 401
 402 static int skel_lstat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 403 {
 404         return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
 405 }
 406
 407 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf)
 408 {
 409         return SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
 410 }
 411
 412 static int skel_unlink(vfs_handle_struct *handle,
 413                        const struct smb_filename *smb_fname)
 414 {
 415         return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 416 }
 417
 418 static int skel_chmod(vfs_handle_struct *handle,  const char *path, mode_t mode)
 419 {
 420         return SMB_VFS_NEXT_CHMOD(handle, path, mode);
 421 }
 422
 423 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
 424 {
 425         return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
 426 }
 427
 428 static int skel_chown(vfs_handle_struct *handle,  const char *path, uid_t uid, gid_t gid)
 429 {
 430         return SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
 431 }
 432
 433 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp, uid_t uid, gid_t gid)
 434 {
 435         return SMB_VFS_NEXT_FCHOWN(handle, fsp, uid, gid);
 436 }
 437
 438 static int skel_lchown(vfs_handle_struct *handle,  const char *path, uid_t uid, gid_t gid)
 439 {
 440         return SMB_VFS_NEXT_LCHOWN(handle, path, uid, gid);
 441 }
 442
 443 static int skel_chdir(vfs_handle_struct *handle,  const char *path)
 444 {
 445         return SMB_VFS_NEXT_CHDIR(handle, path);
 446 }
 447
 448 static char *skel_getwd(vfs_handle_struct *handle)
 449 {
 450         return SMB_VFS_NEXT_GETWD(handle);
 451 }
 452
 453 static int skel_ntimes(vfs_handle_struct *handle,
 454                        const struct smb_filename *smb_fname,
 455                        struct smb_file_time *ft)
 456 {
 457         return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
 458 }
 459
 460 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp, off_t offset)
 461 {
 462         return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
 463 }
 464
 465 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 466                         enum vfs_fallocate_mode mode,
 467                         off_t offset,
 468                         off_t len)
 469 {
 470         return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
 471 }
 472
 473 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op, off_t offset, off_t count, int type)
 474 {
 475         return SMB_VFS_NEXT_LOCK(handle, fsp, op, offset, count, type);
 476 }
 477
 478 static int skel_kernel_flock(struct vfs_handle_struct *handle, struct files_struct *fsp, uint32 share_mode, uint32 access_mask)
 479 {
 480         return SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp, share_mode, access_mask);
 481 }
 482
 483 static int skel_linux_setlease(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype)
 484 {
 485         return SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, leasetype);
 486 }
 487
 488 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid)
 489 {
 490         return SMB_VFS_NEXT_GETLOCK(handle, fsp, poffset, pcount, ptype, ppid);
 491 }
 492
 493 static int skel_symlink(vfs_handle_struct *handle,  const char *oldpath, const char *newpath)
 494 {
 495         return SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath);
 496 }
 497
 498 static int skel_vfs_readlink(vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz)
 499 {
 500         return SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz);
 501 }
 502
 503 static int skel_link(vfs_handle_struct *handle,  const char *oldpath, const char *newpath)
 504 {
 505         return SMB_VFS_NEXT_LINK(handle, oldpath, newpath);
 506 }
 507
 508 static int skel_mknod(vfs_handle_struct *handle,  const char *path, mode_t mode, SMB_DEV_T dev)
 509 {
 510         return SMB_VFS_NEXT_MKNOD(handle, path, mode, dev);
 511 }
 512
 513 static char *skel_realpath(vfs_handle_struct *handle,  const char *path)
 514 {
 515         return SMB_VFS_NEXT_REALPATH(handle, path);
 516 }
 517
 518 static NTSTATUS skel_notify_watch(
 519         struct vfs_handle_struct *handle,
 520         struct sys_notify_context *ctx,
 521         const char *path,
 522         uint32_t *filter,
 523         uint32_t *subdir_filter,
 524         void (*callback)(struct sys_notify_context *ctx, void *private_data,
 525                          struct notify_event *ev),
 526         void *private_data, void *handle_p)
 527 {
 528         return SMB_VFS_NEXT_NOTIFY_WATCH(handle, ctx, path,
 529                                          filter, subdir_filter, callback,
 530                 private_data, handle_p);
 531 }
 532
 533 static int skel_chflags(vfs_handle_struct *handle,  const char *path, uint flags)
 534 {
 535         return SMB_VFS_NEXT_CHFLAGS(handle, path, flags);
 536 }
 537
 538 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 539                                           const SMB_STRUCT_STAT *sbuf)
 540 {
 541         return SMB_VFS_NEXT_FILE_ID_CREATE(handle, sbuf);
 542 }
 543
 544 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 545                                 struct files_struct *fsp,
 546                                 const char *fname,
 547                                 TALLOC_CTX *mem_ctx,
 548                                 unsigned int *num_streams,
 549                                 struct stream_struct **streams)
 550 {
 551         return SMB_VFS_NEXT_STREAMINFO(handle,
 552                                         fsp,
 553                                         fname,
 554                                         mem_ctx,
 555                                         num_streams,
 556                                         streams);
 557 }
 558
 559 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 560                                 const char *path,
 561                                 const char *name,
 562                                 TALLOC_CTX *mem_ctx,
 563                                 char **found_name)
 564 {
 565         return SMB_VFS_NEXT_GET_REAL_FILENAME(handle,
 566                                         path,
 567                                         name,
 568                                         mem_ctx,
 569                                         found_name);
 570 }
 571
 572 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 573                                 const char *filename)
 574 {
 575         return SMB_VFS_NEXT_CONNECTPATH(handle, filename);
 576 }
 577
 578 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 579                                 struct byte_range_lock *br_lck,
 580                                 struct lock_struct *plock,
 581                                 bool blocking_lock,
 582                                 struct blocking_lock_record *blr)
 583 {
 584         return SMB_VFS_NEXT_BRL_LOCK_WINDOWS(handle,
 585                                         br_lck,
 586                                         plock,
 587                                         blocking_lock,
 588                                         blr);
 589 }
 590
 591 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 592                                 struct messaging_context *msg_ctx,
 593                                 struct byte_range_lock *br_lck,
 594                                 const struct lock_struct *plock)
 595 {
 596         return SMB_VFS_NEXT_BRL_UNLOCK_WINDOWS(handle,
 597                                         msg_ctx,
 598                                         br_lck,
 599                                         plock);
 600 }
 601
 602 static bool skel_brl_cancel_windows(struct vfs_handle_struct *handle,
 603                                 struct byte_range_lock *br_lck,
 604                                 struct lock_struct *plock,
 605                                 struct blocking_lock_record *blr)
 606 {
 607         return SMB_VFS_NEXT_BRL_CANCEL_WINDOWS(handle,
 608                                 br_lck,
 609                                 plock,
 610                                 blr);
 611 }
 612
 613 static bool skel_strict_lock(struct vfs_handle_struct *handle,
 614                                 struct files_struct *fsp,
 615                                 struct lock_struct *plock)
 616 {
 617         return SMB_VFS_NEXT_STRICT_LOCK(handle,
 618                                         fsp,
 619                                         plock);
 620 }
 621
 622 static void skel_strict_unlock(struct vfs_handle_struct *handle,
 623                                 struct files_struct *fsp,
 624                                 struct lock_struct *plock)
 625 {
 626         SMB_VFS_NEXT_STRICT_UNLOCK(handle,
 627                                         fsp,
 628                                         plock);
 629 }
 630
 631 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 632                                 const char *mapped_name,
 633                                 enum vfs_translate_direction direction,
 634                                 TALLOC_CTX *mem_ctx,
 635                                 char **pmapped_name)
 636 {
 637         return SMB_VFS_NEXT_TRANSLATE_NAME(handle, mapped_name, direction,
 638                                            mem_ctx, pmapped_name);
 639 }
 640
 641 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 642                         struct files_struct *fsp,
 643                         TALLOC_CTX *ctx,
 644                         uint32_t function,
 645                         uint16_t req_flags,  /* Needed for UNICODE ... */
 646                         const uint8_t *_in_data,
 647                         uint32_t in_len,
 648                         uint8_t **_out_data,
 649                         uint32_t max_out_len,
 650                         uint32_t *out_len)
 651 {
 652         return SMB_VFS_NEXT_FSCTL(handle,
 653                                 fsp,
 654                                 ctx,
 655                                 function,
 656                                 req_flags,
 657                                 _in_data,
 658                                 in_len,
 659                                 _out_data,
 660                                 max_out_len,
 661                                 out_len);
 662 }
 663
 664 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 665         uint32 security_info, struct security_descriptor **ppdesc)
 666 {
 667         return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, ppdesc);
 668 }
 669
 670 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
 671         const char *name, uint32 security_info, struct security_descriptor **ppdesc)
 672 {
 673         return SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info, ppdesc);
 674 }
 675
 676 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 677         uint32 security_info_sent, const struct security_descriptor *psd)
 678 {
 679         return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
 680 }
 681
 682 static int skel_chmod_acl(vfs_handle_struct *handle,  const char *name, mode_t mode)
 683 {
 684         return SMB_VFS_NEXT_CHMOD_ACL(handle, name, mode);
 685 }
 686
 687 static int skel_fchmod_acl(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
 688 {
 689         return SMB_VFS_NEXT_FCHMOD_ACL(handle, fsp, mode);
 690 }
 691
 692 static int skel_sys_acl_get_entry(vfs_handle_struct *handle,  SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p)
 693 {
 694         return SMB_VFS_NEXT_SYS_ACL_GET_ENTRY(handle, theacl, entry_id, entry_p);
 695 }
 696
 697 static int skel_sys_acl_get_tag_type(vfs_handle_struct *handle,  SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p)
 698 {
 699         return SMB_VFS_NEXT_SYS_ACL_GET_TAG_TYPE(handle, entry_d, tag_type_p);
 700 }
 701
 702 static int skel_sys_acl_get_permset(vfs_handle_struct *handle,  SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p)
 703 {
 704         return SMB_VFS_NEXT_SYS_ACL_GET_PERMSET(handle, entry_d, permset_p);
 705 }
 706
 707 static void *skel_sys_acl_get_qualifier(vfs_handle_struct *handle,  SMB_ACL_ENTRY_T entry_d)
 708 {
 709         return SMB_VFS_NEXT_SYS_ACL_GET_QUALIFIER(handle, entry_d);
 710 }
 711
 712 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,  const char *path_p, SMB_ACL_TYPE_T type)
 713 {
 714         return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p, type);
 715 }
 716
 717 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle, files_struct *fsp)
 718 {
 719         return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp);
 720 }
 721
 722 static int skel_sys_acl_clear_perms(vfs_handle_struct *handle,  SMB_ACL_PERMSET_T permset)
 723 {
 724         return SMB_VFS_NEXT_SYS_ACL_CLEAR_PERMS(handle, permset);
 725 }
 726
 727 static int skel_sys_acl_add_perm(vfs_handle_struct *handle,  SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm)
 728 {
 729         return SMB_VFS_NEXT_SYS_ACL_ADD_PERM(handle, permset, perm);
 730 }
 731
 732 static char *skel_sys_acl_to_text(vfs_handle_struct *handle,  SMB_ACL_T theacl, ssize_t *plen)
 733 {
 734         return SMB_VFS_NEXT_SYS_ACL_TO_TEXT(handle, theacl, plen);
 735 }
 736
 737 static SMB_ACL_T skel_sys_acl_init(vfs_handle_struct *handle,  int count)
 738 {
 739         return SMB_VFS_NEXT_SYS_ACL_INIT(handle, count);
 740 }
 741
 742 static int skel_sys_acl_create_entry(vfs_handle_struct *handle,  SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
 743 {
 744         return SMB_VFS_NEXT_SYS_ACL_CREATE_ENTRY(handle, pacl, pentry);
 745 }
 746
 747 static int skel_sys_acl_set_tag_type(vfs_handle_struct *handle,  SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype)
 748 {
 749         return SMB_VFS_NEXT_SYS_ACL_SET_TAG_TYPE(handle, entry, tagtype);
 750 }
 751
 752 static int skel_sys_acl_set_qualifier(vfs_handle_struct *handle,  SMB_ACL_ENTRY_T entry, void *qual)
 753 {
 754         return SMB_VFS_NEXT_SYS_ACL_SET_QUALIFIER(handle, entry, qual);
 755 }
 756
 757 static int skel_sys_acl_set_permset(vfs_handle_struct *handle,  SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset)
 758 {
 759         return SMB_VFS_NEXT_SYS_ACL_SET_PERMSET(handle, entry, permset);
 760 }
 761
 762 static int skel_sys_acl_valid(vfs_handle_struct *handle,  SMB_ACL_T theacl )
 763 {
 764         return SMB_VFS_NEXT_SYS_ACL_VALID(handle, theacl);
 765 }
 766
 767 static int skel_sys_acl_set_file(vfs_handle_struct *handle,  const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
 768 {
 769         return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, acltype, theacl);
 770 }
 771
 772 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp, SMB_ACL_T theacl)
 773 {
 774         return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
 775 }
 776
 777 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,  const char *path)
 778 {
 779         return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
 780 }
 781
 782 static int skel_sys_acl_get_perm(vfs_handle_struct *handle,  SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm)
 783 {
 784         return SMB_VFS_NEXT_SYS_ACL_GET_PERM(handle, permset, perm);
 785 }
 786
 787 static int skel_sys_acl_free_text(vfs_handle_struct *handle,  char *text)
 788 {
 789         return SMB_VFS_NEXT_SYS_ACL_FREE_TEXT(handle, text);
 790 }
 791
 792 static int skel_sys_acl_free_acl(vfs_handle_struct *handle,  SMB_ACL_T posix_acl)
 793 {
 794         return SMB_VFS_NEXT_SYS_ACL_FREE_ACL(handle, posix_acl);
 795 }
 796
 797 static int skel_sys_acl_free_qualifier(vfs_handle_struct *handle,  void *qualifier, SMB_ACL_TAG_T tagtype)
 798 {
 799         return SMB_VFS_NEXT_SYS_ACL_FREE_QUALIFIER(handle, qualifier, tagtype);
 800 }
 801
 802 static ssize_t skel_getxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t size)
 803 {
 804         return SMB_VFS_NEXT_GETXATTR(handle, path, name, value, size);
 805 }
 806
 807 static ssize_t skel_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size)
 808 {
 809         return SMB_VFS_NEXT_FGETXATTR(handle, fsp, name, value, size);
 810 }
 811
 812 static ssize_t skel_listxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
 813 {
 814         return SMB_VFS_NEXT_LISTXATTR(handle, path, list, size);
 815 }
 816
 817 static ssize_t skel_flistxattr(vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size)
 818 {
 819         return SMB_VFS_NEXT_FLISTXATTR(handle, fsp, list, size);
 820 }
 821
 822 static int skel_removexattr(vfs_handle_struct *handle, const char *path, const char *name)
 823 {
 824         return SMB_VFS_NEXT_REMOVEXATTR(handle, path, name);
 825 }
 826
 827 static int skel_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *name)
 828 {
 829         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
 830 }
 831
 832 static int skel_setxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
 833 {
 834         return SMB_VFS_NEXT_SETXATTR(handle, path, name, value, size, flags);
 835 }
 836
 837 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags)
 838 {
 839         return SMB_VFS_NEXT_FSETXATTR(handle, fsp, name, value, size, flags);
 840 }
 841
 842 static bool skel_aio_force(struct vfs_handle_struct *handle, struct files_struct *fsp)
 843 {
 844         return SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
 845 }
 846
 847 static bool skel_is_offline(struct vfs_handle_struct *handle, const struct smb_filename *fname, SMB_STRUCT_STAT *sbuf)
 848 {
 849         return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
 850 }
 851
 852 static int skel_set_offline(struct vfs_handle_struct *handle, const struct smb_filename *fname)
 853 {
 854         return SMB_VFS_NEXT_SET_OFFLINE(handle, fname);
 855 }
 856
 857 /* VFS operations structure */
 858
 859 struct vfs_fn_pointers skel_transparent_fns = {
 860         /* Disk operations */
 861
 862         .connect_fn = skel_connect,
 863         .disconnect_fn = skel_disconnect,
 864         .disk_free_fn = skel_disk_free,
 865         .get_quota_fn = skel_get_quota,
 866         .set_quota_fn = skel_set_quota,
 867         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
 868         .statvfs_fn = skel_statvfs,
 869         .fs_capabilities_fn = skel_fs_capabilities,
 870         .get_dfs_referrals_fn = skel_get_dfs_referrals,
 871
 872         /* Directory operations */
 873
 874         .opendir_fn = skel_opendir,
 875         .fdopendir_fn = skel_fdopendir,
 876         .readdir_fn = skel_readdir,
 877         .seekdir_fn = skel_seekdir,
 878         .telldir_fn = skel_telldir,
 879         .rewind_dir_fn = skel_rewind_dir,
 880         .mkdir_fn = skel_mkdir,
 881         .rmdir_fn = skel_rmdir,
 882         .closedir_fn = skel_closedir,
 883         .init_search_op_fn = skel_init_search_op,
 884
 885         /* File operations */
 886
 887         .open_fn = skel_open,
 888         .create_file_fn = skel_create_file,
 889         .close_fn = skel_close_fn,
 890         .read_fn = skel_vfs_read,
 891         .pread_fn = skel_pread,
 892         .pread_send_fn = skel_pread_send,
 893         .pread_recv_fn = skel_pread_recv,
 894         .write_fn = skel_write,
 895         .pwrite_fn = skel_pwrite,
 896         .pwrite_send_fn = skel_pwrite_send,
 897         .pwrite_recv_fn = skel_pwrite_recv,
 898         .lseek_fn = skel_lseek,
 899         .sendfile_fn = skel_sendfile,
 900         .recvfile_fn = skel_recvfile,
 901         .rename_fn = skel_rename,
 902         .fsync_fn = skel_fsync,
 903         .fsync_send_fn = skel_fsync_send,
 904         .fsync_recv_fn = skel_fsync_recv,
 905         .stat_fn = skel_stat,
 906         .fstat_fn = skel_fstat,
 907         .lstat_fn = skel_lstat,
 908         .get_alloc_size_fn = skel_get_alloc_size,
 909         .unlink_fn = skel_unlink,
 910         .chmod_fn = skel_chmod,
 911         .fchmod_fn = skel_fchmod,
 912         .chown_fn = skel_chown,
 913         .fchown_fn = skel_fchown,
 914         .lchown_fn = skel_lchown,
 915         .chdir_fn = skel_chdir,
 916         .getwd_fn = skel_getwd,
 917         .ntimes_fn = skel_ntimes,
 918         .ftruncate_fn = skel_ftruncate,
 919         .fallocate_fn = skel_fallocate,
 920         .lock_fn = skel_lock,
 921         .kernel_flock_fn = skel_kernel_flock,
 922         .linux_setlease_fn = skel_linux_setlease,
 923         .getlock_fn = skel_getlock,
 924         .symlink_fn = skel_symlink,
 925         .readlink_fn = skel_vfs_readlink,
 926         .link_fn = skel_link,
 927         .mknod_fn = skel_mknod,
 928         .realpath_fn = skel_realpath,
 929         .notify_watch_fn = skel_notify_watch,
 930         .chflags_fn = skel_chflags,
 931         .file_id_create_fn = skel_file_id_create,
 932
 933         .streaminfo_fn = skel_streaminfo,
 934         .get_real_filename_fn = skel_get_real_filename,
 935         .connectpath_fn = skel_connectpath,
 936         .brl_lock_windows_fn = skel_brl_lock_windows,
 937         .brl_unlock_windows_fn = skel_brl_unlock_windows,
 938         .brl_cancel_windows_fn = skel_brl_cancel_windows,
 939         .strict_lock_fn = skel_strict_lock,
 940         .strict_unlock_fn = skel_strict_unlock,
 941         .translate_name_fn = skel_translate_name,
 942         .fsctl_fn = skel_fsctl,
 943
 944         /* NT ACL operations. */
 945
 946         .fget_nt_acl_fn = skel_fget_nt_acl,
 947         .get_nt_acl_fn = skel_get_nt_acl,
 948         .fset_nt_acl_fn = skel_fset_nt_acl,
 949
 950         /* POSIX ACL operations. */
 951
 952         .chmod_acl_fn = skel_chmod_acl,
 953         .fchmod_acl_fn = skel_fchmod_acl,
 954
 955         .sys_acl_get_entry_fn = skel_sys_acl_get_entry,
 956         .sys_acl_get_tag_type_fn = skel_sys_acl_get_tag_type,
 957         .sys_acl_get_permset_fn = skel_sys_acl_get_permset,
 958         .sys_acl_get_qualifier_fn = skel_sys_acl_get_qualifier,
 959         .sys_acl_get_file_fn = skel_sys_acl_get_file,
 960         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
 961         .sys_acl_clear_perms_fn = skel_sys_acl_clear_perms,
 962         .sys_acl_add_perm_fn = skel_sys_acl_add_perm,
 963         .sys_acl_to_text_fn = skel_sys_acl_to_text,
 964         .sys_acl_init_fn = skel_sys_acl_init,
 965         .sys_acl_create_entry_fn = skel_sys_acl_create_entry,
 966         .sys_acl_set_tag_type_fn = skel_sys_acl_set_tag_type,
 967         .sys_acl_set_qualifier_fn = skel_sys_acl_set_qualifier,
 968         .sys_acl_set_permset_fn = skel_sys_acl_set_permset,
 969         .sys_acl_valid_fn = skel_sys_acl_valid,
 970         .sys_acl_set_file_fn = skel_sys_acl_set_file,
 971         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
 972         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
 973         .sys_acl_get_perm_fn = skel_sys_acl_get_perm,
 974         .sys_acl_free_text_fn = skel_sys_acl_free_text,
 975         .sys_acl_free_acl_fn = skel_sys_acl_free_acl,
 976         .sys_acl_free_qualifier_fn = skel_sys_acl_free_qualifier,
 977
 978         /* EA operations. */
 979         .getxattr_fn = skel_getxattr,
 980         .fgetxattr_fn = skel_fgetxattr,
 981         .listxattr_fn = skel_listxattr,
 982         .flistxattr_fn = skel_flistxattr,
 983         .removexattr_fn = skel_removexattr,
 984         .fremovexattr_fn = skel_fremovexattr,
 985         .setxattr_fn = skel_setxattr,
 986         .fsetxattr_fn = skel_fsetxattr,
 987
 988         /* aio operations */
 989         .aio_force_fn = skel_aio_force,
 990
 991         /* offline operations */
 992         .is_offline_fn = skel_is_offline,
 993         .set_offline_fn = skel_set_offline
 994 };
 995
 996 NTSTATUS vfs_skel_transparent_init(void)
 997 {
 998         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_transparent", &skel_transparent_fns);
 999 }