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
  27 /* PLEASE,PLEASE READ THE VFS MODULES CHAPTER OF THE
  28    SAMBA DEVELOPERS GUIDE!!!!!!
  29  */
  30
  31 /* If you take this file as template for your module
  32  * please make sure that you remove all skel_XXX() functions you don't
  33  * want to implement!! The passthrough operations are not
  34  * neccessary in a real module.
  35  *
  36  * --metze
  37  */
  38
  39 static int skel_connect(vfs_handle_struct *handle, const char *service,
  40                         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,
  59                           unid_t id, SMB_DISK_QUOTA *dq)
  60 {
  61         return SMB_VFS_NEXT_GET_QUOTA(handle, qtype, id, dq);
  62 }
  63
  64 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
  65                           unid_t id, SMB_DISK_QUOTA *dq)
  66 {
  67         return SMB_VFS_NEXT_SET_QUOTA(handle, qtype, id, dq);
  68 }
  69
  70 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
  71                                      files_struct *fsp,
  72                                      struct shadow_copy_data *shadow_copy_data,
  73                                      bool labels)
  74 {
  75         return SMB_VFS_NEXT_GET_SHADOW_COPY_DATA(handle, fsp, shadow_copy_data,
  76                                                  labels);
  77 }
  78
  79 static int skel_statvfs(struct vfs_handle_struct *handle, const char *path,
  80                         struct vfs_statvfs_struct *statbuf)
  81 {
  82         return SMB_VFS_NEXT_STATVFS(handle, path, statbuf);
  83 }
  84
  85 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
  86                                      enum timestamp_set_resolution *p_ts_res)
  87 {
  88         return SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
  89 }
  90
  91 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
  92                                        struct dfs_GetDFSReferral *r)
  93 {
  94         return SMB_VFS_NEXT_GET_DFS_REFERRALS(handle, r);
  95 }
  96
  97 static DIR *skel_opendir(vfs_handle_struct *handle, const char *fname,
  98                          const char *mask, uint32 attr)
  99 {
 100         return SMB_VFS_NEXT_OPENDIR(handle, fname, mask, attr);
 101 }
 102
 103 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
 104                            const char *mask, uint32 attr)
 105 {
 106         return SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
 107 }
 108
 109 static struct dirent *skel_readdir(vfs_handle_struct *handle,
 110                                    DIR *dirp, SMB_STRUCT_STAT *sbuf)
 111 {
 112         return SMB_VFS_NEXT_READDIR(handle, dirp, sbuf);
 113 }
 114
 115 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
 116 {
 117         SMB_VFS_NEXT_SEEKDIR(handle, dirp, offset);
 118 }
 119
 120 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
 121 {
 122         return SMB_VFS_NEXT_TELLDIR(handle, dirp);
 123 }
 124
 125 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
 126 {
 127         SMB_VFS_NEXT_REWINDDIR(handle, dirp);
 128 }
 129
 130 static int skel_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode)
 131 {
 132         return SMB_VFS_NEXT_MKDIR(handle, path, mode);
 133 }
 134
 135 static int skel_rmdir(vfs_handle_struct *handle, const char *path)
 136 {
 137         return SMB_VFS_NEXT_RMDIR(handle, path);
 138 }
 139
 140 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
 141 {
 142         return SMB_VFS_NEXT_CLOSEDIR(handle, dir);
 143 }
 144
 145 static void skel_init_search_op(struct vfs_handle_struct *handle, DIR *dirp)
 146 {
 147         SMB_VFS_NEXT_INIT_SEARCH_OP(handle, dirp);
 148 }
 149
 150 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 151                      files_struct *fsp, int flags, mode_t mode)
 152 {
 153         return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
 154 }
 155
 156 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
 157                                  struct smb_request *req,
 158                                  uint16_t root_dir_fid,
 159                                  struct smb_filename *smb_fname,
 160                                  uint32_t access_mask,
 161                                  uint32_t share_access,
 162                                  uint32_t create_disposition,
 163                                  uint32_t create_options,
 164                                  uint32_t file_attributes,
 165                                  uint32_t oplock_request,
 166                                  uint64_t allocation_size,
 167                                  uint32_t private_flags,
 168                                  struct security_descriptor *sd,
 169                                  struct ea_list *ea_list,
 170                                  files_struct ** result, int *pinfo)
 171 {
 172         return SMB_VFS_NEXT_CREATE_FILE(handle,
 173                                         req,
 174                                         root_dir_fid,
 175                                         smb_fname,
 176                                         access_mask,
 177                                         share_access,
 178                                         create_disposition,
 179                                         create_options,
 180                                         file_attributes,
 181                                         oplock_request,
 182                                         allocation_size,
 183                                         private_flags,
 184                                         sd, ea_list, result, pinfo);
 185 }
 186
 187 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
 188 {
 189         return SMB_VFS_NEXT_CLOSE(handle, fsp);
 190 }
 191
 192 static ssize_t skel_vfs_read(vfs_handle_struct *handle, files_struct *fsp,
 193                              void *data, size_t n)
 194 {
 195         return SMB_VFS_NEXT_READ(handle, fsp, data, n);
 196 }
 197
 198 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
 199                           void *data, size_t n, off_t offset)
 200 {
 201         return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
 202 }
 203
 204 struct skel_pread_state {
 205         ssize_t ret;
 206         int err;
 207 };
 208
 209 static void skel_pread_done(struct tevent_req *subreq);
 210
 211 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
 212                                           TALLOC_CTX *mem_ctx,
 213                                           struct tevent_context *ev,
 214                                           struct files_struct *fsp,
 215                                           void *data, size_t n, off_t offset)
 216 {
 217         struct tevent_req *req, *subreq;
 218         struct skel_pread_state *state;
 219
 220         req = tevent_req_create(mem_ctx, &state, struct skel_pread_state);
 221         if (req == NULL) {
 222                 return NULL;
 223         }
 224         subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
 225                                          n, offset);
 226         if (tevent_req_nomem(subreq, req)) {
 227                 return tevent_req_post(req, ev);
 228         }
 229         tevent_req_set_callback(subreq, skel_pread_done, req);
 230         return req;
 231 }
 232
 233 static void skel_pread_done(struct tevent_req *subreq)
 234 {
 235         struct tevent_req *req =
 236             tevent_req_callback_data(subreq, struct tevent_req);
 237         struct skel_pread_state *state =
 238             tevent_req_data(req, struct skel_pread_state);
 239
 240         state->ret = SMB_VFS_PREAD_RECV(subreq, &state->err);
 241         TALLOC_FREE(subreq);
 242         tevent_req_done(req);
 243 }
 244
 245 static ssize_t skel_pread_recv(struct tevent_req *req, int *err)
 246 {
 247         struct skel_pread_state *state =
 248             tevent_req_data(req, struct skel_pread_state);
 249
 250         if (tevent_req_is_unix_error(req, err)) {
 251                 return -1;
 252         }
 253         *err = state->err;
 254         return state->ret;
 255 }
 256
 257 static ssize_t skel_write(vfs_handle_struct *handle, files_struct *fsp,
 258                           const void *data, size_t n)
 259 {
 260         return SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
 261 }
 262
 263 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
 264                            const void *data, size_t n, off_t offset)
 265 {
 266         return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
 267 }
 268
 269 struct skel_pwrite_state {
 270         ssize_t ret;
 271         int err;
 272 };
 273
 274 static void skel_pwrite_done(struct tevent_req *subreq);
 275
 276 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
 277                                            TALLOC_CTX *mem_ctx,
 278                                            struct tevent_context *ev,
 279                                            struct files_struct *fsp,
 280                                            const void *data,
 281                                            size_t n, off_t offset)
 282 {
 283         struct tevent_req *req, *subreq;
 284         struct skel_pwrite_state *state;
 285
 286         req = tevent_req_create(mem_ctx, &state, struct skel_pwrite_state);
 287         if (req == NULL) {
 288                 return NULL;
 289         }
 290         subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
 291                                           n, offset);
 292         if (tevent_req_nomem(subreq, req)) {
 293                 return tevent_req_post(req, ev);
 294         }
 295         tevent_req_set_callback(subreq, skel_pwrite_done, req);
 296         return req;
 297 }
 298
 299 static void skel_pwrite_done(struct tevent_req *subreq)
 300 {
 301         struct tevent_req *req =
 302             tevent_req_callback_data(subreq, struct tevent_req);
 303         struct skel_pwrite_state *state =
 304             tevent_req_data(req, struct skel_pwrite_state);
 305
 306         state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->err);
 307         TALLOC_FREE(subreq);
 308         tevent_req_done(req);
 309 }
 310
 311 static ssize_t skel_pwrite_recv(struct tevent_req *req, int *err)
 312 {
 313         struct skel_pwrite_state *state =
 314             tevent_req_data(req, struct skel_pwrite_state);
 315
 316         if (tevent_req_is_unix_error(req, err)) {
 317                 return -1;
 318         }
 319         *err = state->err;
 320         return state->ret;
 321 }
 322
 323 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
 324                         off_t offset, int whence)
 325 {
 326         return SMB_VFS_NEXT_LSEEK(handle, fsp, offset, whence);
 327 }
 328
 329 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
 330                              files_struct *fromfsp, const DATA_BLOB *hdr,
 331                              off_t offset, size_t n)
 332 {
 333         return SMB_VFS_NEXT_SENDFILE(handle, tofd, fromfsp, hdr, offset, n);
 334 }
 335
 336 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
 337                              files_struct *tofsp, off_t offset, size_t n)
 338 {
 339         return SMB_VFS_NEXT_RECVFILE(handle, fromfd, tofsp, offset, n);
 340 }
 341
 342 static int skel_rename(vfs_handle_struct *handle,
 343                        const struct smb_filename *smb_fname_src,
 344                        const struct smb_filename *smb_fname_dst)
 345 {
 346         return SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
 347 }
 348
 349 static int skel_fsync(vfs_handle_struct *handle, files_struct *fsp)
 350 {
 351         return SMB_VFS_NEXT_FSYNC(handle, fsp);
 352 }
 353
 354 struct skel_fsync_state {
 355         int ret;
 356         int err;
 357 };
 358
 359 static void skel_fsync_done(struct tevent_req *subreq);
 360
 361 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 362                                           TALLOC_CTX *mem_ctx,
 363                                           struct tevent_context *ev,
 364                                           struct files_struct *fsp)
 365 {
 366         struct tevent_req *req, *subreq;
 367         struct skel_fsync_state *state;
 368
 369         req = tevent_req_create(mem_ctx, &state, struct skel_fsync_state);
 370         if (req == NULL) {
 371                 return NULL;
 372         }
 373         subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
 374         if (tevent_req_nomem(subreq, req)) {
 375                 return tevent_req_post(req, ev);
 376         }
 377         tevent_req_set_callback(subreq, skel_fsync_done, req);
 378         return req;
 379 }
 380
 381 static void skel_fsync_done(struct tevent_req *subreq)
 382 {
 383         struct tevent_req *req =
 384             tevent_req_callback_data(subreq, struct tevent_req);
 385         struct skel_fsync_state *state =
 386             tevent_req_data(req, struct skel_fsync_state);
 387
 388         state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->err);
 389         TALLOC_FREE(subreq);
 390         tevent_req_done(req);
 391 }
 392
 393 static int skel_fsync_recv(struct tevent_req *req, int *err)
 394 {
 395         struct skel_fsync_state *state =
 396             tevent_req_data(req, struct skel_fsync_state);
 397
 398         if (tevent_req_is_unix_error(req, err)) {
 399                 return -1;
 400         }
 401         *err = state->err;
 402         return state->ret;
 403 }
 404
 405 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
 406 {
 407         return SMB_VFS_NEXT_STAT(handle, smb_fname);
 408 }
 409
 410 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
 411                       SMB_STRUCT_STAT *sbuf)
 412 {
 413         return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
 414 }
 415
 416 static int skel_lstat(vfs_handle_struct *handle,
 417                       struct smb_filename *smb_fname)
 418 {
 419         return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
 420 }
 421
 422 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
 423                                     struct files_struct *fsp,
 424                                     const SMB_STRUCT_STAT *sbuf)
 425 {
 426         return SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
 427 }
 428
 429 static int skel_unlink(vfs_handle_struct *handle,
 430                        const struct smb_filename *smb_fname)
 431 {
 432         return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 433 }
 434
 435 static int skel_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
 436 {
 437         return SMB_VFS_NEXT_CHMOD(handle, path, mode);
 438 }
 439
 440 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
 441                        mode_t mode)
 442 {
 443         return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
 444 }
 445
 446 static int skel_chown(vfs_handle_struct *handle, const char *path, uid_t uid,
 447                       gid_t gid)
 448 {
 449         return SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
 450 }
 451
 452 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
 453                        uid_t uid, gid_t gid)
 454 {
 455         return SMB_VFS_NEXT_FCHOWN(handle, fsp, uid, gid);
 456 }
 457
 458 static int skel_lchown(vfs_handle_struct *handle, const char *path, uid_t uid,
 459                        gid_t gid)
 460 {
 461         return SMB_VFS_NEXT_LCHOWN(handle, path, uid, gid);
 462 }
 463
 464 static int skel_chdir(vfs_handle_struct *handle, const char *path)
 465 {
 466         return SMB_VFS_NEXT_CHDIR(handle, path);
 467 }
 468
 469 static char *skel_getwd(vfs_handle_struct *handle)
 470 {
 471         return SMB_VFS_NEXT_GETWD(handle);
 472 }
 473
 474 static int skel_ntimes(vfs_handle_struct *handle,
 475                        const struct smb_filename *smb_fname,
 476                        struct smb_file_time *ft)
 477 {
 478         return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
 479 }
 480
 481 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
 482                           off_t offset)
 483 {
 484         return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
 485 }
 486
 487 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
 488                           enum vfs_fallocate_mode mode, off_t offset, off_t len)
 489 {
 490         return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
 491 }
 492
 493 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
 494                       off_t offset, off_t count, int type)
 495 {
 496         return SMB_VFS_NEXT_LOCK(handle, fsp, op, offset, count, type);
 497 }
 498
 499 static int skel_kernel_flock(struct vfs_handle_struct *handle,
 500                              struct files_struct *fsp, uint32 share_mode,
 501                              uint32 access_mask)
 502 {
 503         return SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp, share_mode, access_mask);
 504 }
 505
 506 static int skel_linux_setlease(struct vfs_handle_struct *handle,
 507                                struct files_struct *fsp, int leasetype)
 508 {
 509         return SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, leasetype);
 510 }
 511
 512 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
 513                          off_t *poffset, off_t *pcount, int *ptype,
 514                          pid_t *ppid)
 515 {
 516         return SMB_VFS_NEXT_GETLOCK(handle, fsp, poffset, pcount, ptype, ppid);
 517 }
 518
 519 static int skel_symlink(vfs_handle_struct *handle, const char *oldpath,
 520                         const char *newpath)
 521 {
 522         return SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath);
 523 }
 524
 525 static int skel_vfs_readlink(vfs_handle_struct *handle, const char *path,
 526                              char *buf, size_t bufsiz)
 527 {
 528         return SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz);
 529 }
 530
 531 static int skel_link(vfs_handle_struct *handle, const char *oldpath,
 532                      const char *newpath)
 533 {
 534         return SMB_VFS_NEXT_LINK(handle, oldpath, newpath);
 535 }
 536
 537 static int skel_mknod(vfs_handle_struct *handle, const char *path, mode_t mode,
 538                       SMB_DEV_T dev)
 539 {
 540         return SMB_VFS_NEXT_MKNOD(handle, path, mode, dev);
 541 }
 542
 543 static char *skel_realpath(vfs_handle_struct *handle, const char *path)
 544 {
 545         return SMB_VFS_NEXT_REALPATH(handle, path);
 546 }
 547
 548 static NTSTATUS skel_notify_watch(struct vfs_handle_struct *handle,
 549                                   struct sys_notify_context *ctx,
 550                                   const char *path,
 551                                   uint32_t *filter,
 552                                   uint32_t *subdir_filter,
 553                                   void (*callback) (struct sys_notify_context *ctx,
 554                                                     void *private_data,
 555                                                     struct notify_event *ev),
 556                                   void *private_data, void *handle_p)
 557 {
 558         return SMB_VFS_NEXT_NOTIFY_WATCH(handle, ctx, path,
 559                                          filter, subdir_filter, callback,
 560                                          private_data, handle_p);
 561 }
 562
 563 static int skel_chflags(vfs_handle_struct *handle, const char *path,
 564                         uint flags)
 565 {
 566         return SMB_VFS_NEXT_CHFLAGS(handle, path, flags);
 567 }
 568
 569 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
 570                                           const SMB_STRUCT_STAT *sbuf)
 571 {
 572         return SMB_VFS_NEXT_FILE_ID_CREATE(handle, sbuf);
 573 }
 574
 575 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
 576                                 struct files_struct *fsp,
 577                                 const char *fname,
 578                                 TALLOC_CTX *mem_ctx,
 579                                 unsigned int *num_streams,
 580                                 struct stream_struct **streams)
 581 {
 582         return SMB_VFS_NEXT_STREAMINFO(handle,
 583                                        fsp,
 584                                        fname, mem_ctx, num_streams, streams);
 585 }
 586
 587 static int skel_get_real_filename(struct vfs_handle_struct *handle,
 588                                   const char *path,
 589                                   const char *name,
 590                                   TALLOC_CTX *mem_ctx, char **found_name)
 591 {
 592         return SMB_VFS_NEXT_GET_REAL_FILENAME(handle,
 593                                               path, name, mem_ctx, found_name);
 594 }
 595
 596 static const char *skel_connectpath(struct vfs_handle_struct *handle,
 597                                     const char *filename)
 598 {
 599         return SMB_VFS_NEXT_CONNECTPATH(handle, filename);
 600 }
 601
 602 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
 603                                       struct byte_range_lock *br_lck,
 604                                       struct lock_struct *plock,
 605                                       bool blocking_lock,
 606                                       struct blocking_lock_record *blr)
 607 {
 608         return SMB_VFS_NEXT_BRL_LOCK_WINDOWS(handle,
 609                                              br_lck, plock, blocking_lock, blr);
 610 }
 611
 612 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
 613                                     struct messaging_context *msg_ctx,
 614                                     struct byte_range_lock *br_lck,
 615                                     const struct lock_struct *plock)
 616 {
 617         return SMB_VFS_NEXT_BRL_UNLOCK_WINDOWS(handle, msg_ctx, br_lck, plock);
 618 }
 619
 620 static bool skel_brl_cancel_windows(struct vfs_handle_struct *handle,
 621                                     struct byte_range_lock *br_lck,
 622                                     struct lock_struct *plock,
 623                                     struct blocking_lock_record *blr)
 624 {
 625         return SMB_VFS_NEXT_BRL_CANCEL_WINDOWS(handle, br_lck, plock, blr);
 626 }
 627
 628 static bool skel_strict_lock(struct vfs_handle_struct *handle,
 629                              struct files_struct *fsp,
 630                              struct lock_struct *plock)
 631 {
 632         return SMB_VFS_NEXT_STRICT_LOCK(handle, fsp, plock);
 633 }
 634
 635 static void skel_strict_unlock(struct vfs_handle_struct *handle,
 636                                struct files_struct *fsp,
 637                                struct lock_struct *plock)
 638 {
 639         SMB_VFS_NEXT_STRICT_UNLOCK(handle, fsp, plock);
 640 }
 641
 642 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
 643                                     const char *mapped_name,
 644                                     enum vfs_translate_direction direction,
 645                                     TALLOC_CTX *mem_ctx, char **pmapped_name)
 646 {
 647         return SMB_VFS_NEXT_TRANSLATE_NAME(handle, mapped_name, direction,
 648                                            mem_ctx, pmapped_name);
 649 }
 650
 651 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
 652                            struct files_struct *fsp,
 653                            TALLOC_CTX *ctx,
 654                            uint32_t function,
 655                            uint16_t req_flags,  /* Needed for UNICODE ... */
 656                            const uint8_t *_in_data,
 657                            uint32_t in_len,
 658                            uint8_t ** _out_data,
 659                            uint32_t max_out_len, uint32_t *out_len)
 660 {
 661         return SMB_VFS_NEXT_FSCTL(handle,
 662                                   fsp,
 663                                   ctx,
 664                                   function,
 665                                   req_flags,
 666                                   _in_data,
 667                                   in_len, _out_data, max_out_len, out_len);
 668 }
 669
 670 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 671                                  uint32 security_info,
 672                                  TALLOC_CTX *mem_ctx,
 673                                  struct security_descriptor **ppdesc)
 674 {
 675         return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, mem_ctx,
 676                                         ppdesc);
 677 }
 678
 679 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
 680                                 const char *name, uint32 security_info,
 681                                 TALLOC_CTX *mem_ctx,
 682                                 struct security_descriptor **ppdesc)
 683 {
 684         return SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info, mem_ctx,
 685                                        ppdesc);
 686 }
 687
 688 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 689                                  uint32 security_info_sent,
 690                                  const struct security_descriptor *psd)
 691 {
 692         return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
 693 }
 694
 695 static int skel_chmod_acl(vfs_handle_struct *handle, const char *name,
 696                           mode_t mode)
 697 {
 698         return SMB_VFS_NEXT_CHMOD_ACL(handle, name, mode);
 699 }
 700
 701 static int skel_fchmod_acl(vfs_handle_struct *handle, files_struct *fsp,
 702                            mode_t mode)
 703 {
 704         return SMB_VFS_NEXT_FCHMOD_ACL(handle, fsp, mode);
 705 }
 706
 707 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
 708                                        const char *path_p,
 709                                        SMB_ACL_TYPE_T type,
 710                                        TALLOC_CTX *mem_ctx)
 711 {
 712         return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p, type, mem_ctx);
 713 }
 714
 715 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
 716                                      files_struct *fsp, TALLOC_CTX *mem_ctx)
 717 {
 718         return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
 719 }
 720
 721 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
 722                                       const char *path_p, TALLOC_CTX *mem_ctx,
 723                                       char **blob_description, DATA_BLOB *blob)
 724 {
 725         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, path_p, mem_ctx,
 726                                                   blob_description, blob);
 727 }
 728
 729 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
 730                                     files_struct *fsp, TALLOC_CTX *mem_ctx,
 731                                     char **blob_description, DATA_BLOB *blob)
 732 {
 733         return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
 734                                                 blob_description, blob);
 735 }
 736
 737 static int skel_sys_acl_set_file(vfs_handle_struct *handle, const char *name,
 738                                  SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
 739 {
 740         return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, acltype, theacl);
 741 }
 742
 743 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
 744                                SMB_ACL_T theacl)
 745 {
 746         return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
 747 }
 748
 749 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
 750                                         const char *path)
 751 {
 752         return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
 753 }
 754
 755 static ssize_t skel_getxattr(vfs_handle_struct *handle, const char *path,
 756                              const char *name, void *value, size_t size)
 757 {
 758         return SMB_VFS_NEXT_GETXATTR(handle, path, name, value, size);
 759 }
 760
 761 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
 762                               struct files_struct *fsp, const char *name,
 763                               void *value, size_t size)
 764 {
 765         return SMB_VFS_NEXT_FGETXATTR(handle, fsp, name, value, size);
 766 }
 767
 768 static ssize_t skel_listxattr(vfs_handle_struct *handle, const char *path,
 769                               char *list, size_t size)
 770 {
 771         return SMB_VFS_NEXT_LISTXATTR(handle, path, list, size);
 772 }
 773
 774 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
 775                                struct files_struct *fsp, char *list,
 776                                size_t size)
 777 {
 778         return SMB_VFS_NEXT_FLISTXATTR(handle, fsp, list, size);
 779 }
 780
 781 static int skel_removexattr(vfs_handle_struct *handle, const char *path,
 782                             const char *name)
 783 {
 784         return SMB_VFS_NEXT_REMOVEXATTR(handle, path, name);
 785 }
 786
 787 static int skel_fremovexattr(vfs_handle_struct *handle,
 788                              struct files_struct *fsp, const char *name)
 789 {
 790         return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
 791 }
 792
 793 static int skel_setxattr(vfs_handle_struct *handle, const char *path,
 794                          const char *name, const void *value, size_t size,
 795                          int flags)
 796 {
 797         return SMB_VFS_NEXT_SETXATTR(handle, path, name, value, size, flags);
 798 }
 799
 800 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
 801                           const char *name, const void *value, size_t size,
 802                           int flags)
 803 {
 804         return SMB_VFS_NEXT_FSETXATTR(handle, fsp, name, value, size, flags);
 805 }
 806
 807 static bool skel_aio_force(struct vfs_handle_struct *handle,
 808                            struct files_struct *fsp)
 809 {
 810         return SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
 811 }
 812
 813 static bool skel_is_offline(struct vfs_handle_struct *handle,
 814                             const struct smb_filename *fname,
 815                             SMB_STRUCT_STAT *sbuf)
 816 {
 817         return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
 818 }
 819
 820 static int skel_set_offline(struct vfs_handle_struct *handle,
 821                             const struct smb_filename *fname)
 822 {
 823         return SMB_VFS_NEXT_SET_OFFLINE(handle, fname);
 824 }
 825
 826 /* VFS operations structure */
 827
 828 struct vfs_fn_pointers skel_transparent_fns = {
 829         /* Disk operations */
 830
 831         .connect_fn = skel_connect,
 832         .disconnect_fn = skel_disconnect,
 833         .disk_free_fn = skel_disk_free,
 834         .get_quota_fn = skel_get_quota,
 835         .set_quota_fn = skel_set_quota,
 836         .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
 837         .statvfs_fn = skel_statvfs,
 838         .fs_capabilities_fn = skel_fs_capabilities,
 839         .get_dfs_referrals_fn = skel_get_dfs_referrals,
 840
 841         /* Directory operations */
 842
 843         .opendir_fn = skel_opendir,
 844         .fdopendir_fn = skel_fdopendir,
 845         .readdir_fn = skel_readdir,
 846         .seekdir_fn = skel_seekdir,
 847         .telldir_fn = skel_telldir,
 848         .rewind_dir_fn = skel_rewind_dir,
 849         .mkdir_fn = skel_mkdir,
 850         .rmdir_fn = skel_rmdir,
 851         .closedir_fn = skel_closedir,
 852         .init_search_op_fn = skel_init_search_op,
 853
 854         /* File operations */
 855
 856         .open_fn = skel_open,
 857         .create_file_fn = skel_create_file,
 858         .close_fn = skel_close_fn,
 859         .read_fn = skel_vfs_read,
 860         .pread_fn = skel_pread,
 861         .pread_send_fn = skel_pread_send,
 862         .pread_recv_fn = skel_pread_recv,
 863         .write_fn = skel_write,
 864         .pwrite_fn = skel_pwrite,
 865         .pwrite_send_fn = skel_pwrite_send,
 866         .pwrite_recv_fn = skel_pwrite_recv,
 867         .lseek_fn = skel_lseek,
 868         .sendfile_fn = skel_sendfile,
 869         .recvfile_fn = skel_recvfile,
 870         .rename_fn = skel_rename,
 871         .fsync_fn = skel_fsync,
 872         .fsync_send_fn = skel_fsync_send,
 873         .fsync_recv_fn = skel_fsync_recv,
 874         .stat_fn = skel_stat,
 875         .fstat_fn = skel_fstat,
 876         .lstat_fn = skel_lstat,
 877         .get_alloc_size_fn = skel_get_alloc_size,
 878         .unlink_fn = skel_unlink,
 879         .chmod_fn = skel_chmod,
 880         .fchmod_fn = skel_fchmod,
 881         .chown_fn = skel_chown,
 882         .fchown_fn = skel_fchown,
 883         .lchown_fn = skel_lchown,
 884         .chdir_fn = skel_chdir,
 885         .getwd_fn = skel_getwd,
 886         .ntimes_fn = skel_ntimes,
 887         .ftruncate_fn = skel_ftruncate,
 888         .fallocate_fn = skel_fallocate,
 889         .lock_fn = skel_lock,
 890         .kernel_flock_fn = skel_kernel_flock,
 891         .linux_setlease_fn = skel_linux_setlease,
 892         .getlock_fn = skel_getlock,
 893         .symlink_fn = skel_symlink,
 894         .readlink_fn = skel_vfs_readlink,
 895         .link_fn = skel_link,
 896         .mknod_fn = skel_mknod,
 897         .realpath_fn = skel_realpath,
 898         .notify_watch_fn = skel_notify_watch,
 899         .chflags_fn = skel_chflags,
 900         .file_id_create_fn = skel_file_id_create,
 901
 902         .streaminfo_fn = skel_streaminfo,
 903         .get_real_filename_fn = skel_get_real_filename,
 904         .connectpath_fn = skel_connectpath,
 905         .brl_lock_windows_fn = skel_brl_lock_windows,
 906         .brl_unlock_windows_fn = skel_brl_unlock_windows,
 907         .brl_cancel_windows_fn = skel_brl_cancel_windows,
 908         .strict_lock_fn = skel_strict_lock,
 909         .strict_unlock_fn = skel_strict_unlock,
 910         .translate_name_fn = skel_translate_name,
 911         .fsctl_fn = skel_fsctl,
 912
 913         /* NT ACL operations. */
 914
 915         .fget_nt_acl_fn = skel_fget_nt_acl,
 916         .get_nt_acl_fn = skel_get_nt_acl,
 917         .fset_nt_acl_fn = skel_fset_nt_acl,
 918
 919         /* POSIX ACL operations. */
 920
 921         .chmod_acl_fn = skel_chmod_acl,
 922         .fchmod_acl_fn = skel_fchmod_acl,
 923
 924         .sys_acl_get_file_fn = skel_sys_acl_get_file,
 925         .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
 926         .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
 927         .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
 928         .sys_acl_set_file_fn = skel_sys_acl_set_file,
 929         .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
 930         .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
 931
 932         /* EA operations. */
 933         .getxattr_fn = skel_getxattr,
 934         .fgetxattr_fn = skel_fgetxattr,
 935         .listxattr_fn = skel_listxattr,
 936         .flistxattr_fn = skel_flistxattr,
 937         .removexattr_fn = skel_removexattr,
 938         .fremovexattr_fn = skel_fremovexattr,
 939         .setxattr_fn = skel_setxattr,
 940         .fsetxattr_fn = skel_fsetxattr,
 941
 942         /* aio operations */
 943         .aio_force_fn = skel_aio_force,
 944
 945         /* offline operations */
 946         .is_offline_fn = skel_is_offline,
 947         .set_offline_fn = skel_set_offline
 948 };
 949
 950 NTSTATUS vfs_skel_transparent_init(void)
 951 {
 952         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_transparent",
 953                                 &skel_transparent_fns);
 954 }