smbd: Remove write cache
[samba.git] / source3 / include / vfs.h
1 /* 
2    Unix SMB/CIFS implementation.
3    VFS structures and parameters
4    Copyright (C) Jeremy Allison                         1999-2005
5    Copyright (C) Tim Potter                             1999
6    Copyright (C) Alexander Bokovoy                      2002-2005
7    Copyright (C) Stefan (metze) Metzmacher              2003
8    Copyright (C) Volker Lendecke                        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    This work was sponsored by Optifacio Software Services, Inc.
24 */
25
26 #ifndef _VFS_H
27 #define _VFS_H
28
29 /* Avoid conflict with an AIX include file */
30
31 #ifdef vfs_ops
32 #undef vfs_ops
33 #endif
34
35 /*
36  * As we're now (thanks Andrew ! :-) using file_structs and connection
37  * structs in the vfs - then anyone writing a vfs must include includes.h...
38  */
39
40 /*
41  * This next constant specifies the version number of the VFS interface
42  * this smbd will load. Increment this if *ANY* changes are made to the
43  * vfs_ops below. JRA.
44  *
45  * If you change anything here, please also update modules/vfs_full_audit.c.
46  * VL.
47  */
48
49 /* Changed to version 2 for CIFS UNIX extensions (mknod and link added). JRA. */
50 /* Changed to version 3 for POSIX acl extensions. JRA. */
51 /* Changed to version 4 for cascaded VFS interface. Alexander Bokovoy. */
52 /* Changed to version 5 for sendfile addition. JRA. */
53 /* Changed to version 6 for the new module system, fixed cascading and quota functions. --metze */
54 /* Changed to version 7 to include the get_nt_acl info parameter. JRA. */
55 /* Changed to version 8 includes EA calls. JRA. */
56 /* Changed to version 9 to include the get_shadow_data call. --metze */
57 /* Changed to version 10 to include pread/pwrite calls. */
58 /* Changed to version 11 to include seekdir/telldir/rewinddir calls. JRA */
59 /* Changed to version 12 to add mask and attributes to opendir(). JRA 
60    Also include aio calls. JRA. */
61 /* Changed to version 13 as the internal structure of files_struct has changed. JRA */
62 /* Changed to version 14 as we had to change DIR to SMB_STRUCT_DIR. JRA */
63 /* Changed to version 15 as we added the statvfs call. JRA */
64 /* Changed to version 16 as we added the getlock call. JRA */
65 /* Changed to version 17 as we removed redundant connection_struct parameters. --jpeach */
66 /* Changed to version 18 to add fsp parameter to the open call -- jpeach 
67    Also include kernel_flock call - jmcd */
68 /* Changed to version 19, kernel change notify has been merged 
69    Also included linux setlease call - jmcd */
70 /* Changed to version 20, use ntimes call instead of utime (greater
71  * timestamp resolition. JRA. */
72 /* Changed to version21 to add chflags operation -- jpeach */
73 /* Changed to version22 to add lchown operation -- jra */
74 /* Leave at 22 - not yet released. But change set_nt_acl to return an NTSTATUS. jra. */
75 /* Leave at 22 - not yet released. Add file_id_create operation. --metze */
76 /* Leave at 22 - not yet released. Change all BOOL parameters (int) to bool. jra. */
77 /* Leave at 22 - not yet released. Added recvfile. */
78 /* Leave at 22 - not yet released. Change get_nt_acl to return NTSTATUS - vl */
79 /* Leave at 22 - not yet released. Change get_nt_acl to *not* take a
80  * files_struct. - obnox.*/
81 /* Leave at 22 - not yet released. Remove parameter fd from fget_nt_acl. - obnox */
82 /* Leave at 22 - not yet released. Remove parameter fd from gset_nt_acl. - obnox */
83 /* Leave at 22 - not yet released. Remove parameter fd from pread. - obnox */
84 /* Leave at 22 - not yet released. Remove parameter fd from pwrite. - obnox */
85 /* Leave at 22 - not yet released. Remove parameter fd from lseek. - obnox */
86 /* Leave at 22 - not yet released. Remove parameter fd from fsync. - obnox */
87 /* Leave at 22 - not yet released. Remove parameter fd from fstat. - obnox */
88 /* Leave at 22 - not yet released. Remove parameter fd from fchmod. - obnox */
89 /* Leave at 22 - not yet released. Remove parameter fd from fchown. - obnox */
90 /* Leave at 22 - not yet released. Remove parameter fd from ftruncate. - obnox */
91 /* Leave at 22 - not yet released. Remove parameter fd from lock. - obnox */
92 /* Leave at 22 - not yet released. Remove parameter fd from kernel_flock. - obnox */
93 /* Leave at 22 - not yet released. Remove parameter fd from linux_setlease. - obnox */
94 /* Leave at 22 - not yet released. Remove parameter fd from getlock. - obnox */
95 /* Leave at 22 - not yet released. Remove parameter fd from sys_acl_get_fd. - obnox */
96 /* Leave at 22 - not yet released. Remove parameter fd from fchmod_acl. - obnox */
97 /* Leave at 22 - not yet released. Remove parameter fd from sys_acl_set_fd. - obnox */
98 /* Leave at 22 - not yet released. Remove parameter fd from fgetxattr. - obnox */
99 /* Leave at 22 - not yet released. Remove parameter fd from flistxattr. - obnox */
100 /* Leave at 22 - not yet released. Remove parameter fd from fremovexattr. - obnox */
101 /* Leave at 22 - not yet released. Remove parameter fd from fsetxattr. - obnox */
102 /* Leave at 22 - not yet released. Remove parameter fd from aio_cancel. - obnox */
103 /* Leave at 22 - not yet released. Remove parameter fd from read. - obnox */
104 /* Leave at 22 - not yet released. Remove parameter fd from write. - obnox */
105 /* Leave at 22 - not yet released. Remove parameter fromfd from sendfile. - obnox */
106 /* Leave at 22 - not yet released. Remove parameter fromfd from recvfile. - obnox */
107 /* Leave at 22 - not yet released. Additional change: add operations for offline files -- ab */
108 /* Leave at 22 - not yet released. Add the streaminfo call. -- jpeach, vl */
109 /* Leave at 22 - not yet released. Remove parameter fd from close_fn. - obnox */
110 /* Changed to version 23 - remove set_nt_acl call. This can only be done via an
111    open handle. JRA. */
112 /* Changed to version 24 - make security descriptor const in fset_nt_acl. JRA. */
113 /* Changed to version 25 - Jelmer's change from SMB_BIG_UINT to uint64_t. */
114 /* Leave at 25 - not yet released. Add create_file call. -- tprouty. */
115 /* Leave at 25 - not yet released. Add create time to ntimes. -- tstecher. */
116 /* Leave at 25 - not yet released. Add get_alloc_size call. -- tprouty. */
117 /* Leave at 25 - not yet released. Add SMB_STRUCT_STAT to readdir. - sdann */
118 /* Leave at 25 - not yet released. Add init_search_op call. - sdann */
119 /* Leave at 25 - not yet released. Add locking calls. -- zkirsch. */
120 /* Leave at 25 - not yet released. Add strict locking calls. -- drichards. */
121 /* Changed to version 26 - Plumb struct smb_filename to SMB_VFS_CREATE_FILE,
122                            SMB_VFS_OPEN, SMB_VFS_STAT, SMB_VFS_LSTAT,
123                            SMB_VFS_RENAME, SMB_VFS_UNLINK, SMB_VFS_NTIMES.  */
124 /* Changed to version 27 - not yet released. Added enum timestamp_set_resolution
125  *                         return to fs_capabilities call. JRA. */
126 /* Leave at 27 - not yet released. Add translate_name VFS call to convert
127                  UNIX names to Windows supported names -- asrinivasan. */
128 /* Changed to version 28 - Add private_flags uint32_t to CREATE call. */
129 /* Leave at 28 - not yet released. Change realpath to assume NULL and return a
130                  malloc'ed path. JRA. */
131 /* Leave at 28 - not yet released. Move posix_fallocate into the VFS
132                 where it belongs. JRA. */
133 /* Leave at 28 - not yet released. Rename posix_fallocate to fallocate
134                 to split out the two possible uses. JRA. */
135 /* Leave at 28 - not yet released. Add fdopendir. JRA. */
136 /* Leave at 28 - not yet released. Rename open function to open_fn. - gd */
137 /* Leave at 28 - not yet released. Make getwd function always return malloced memory. JRA. */
138 /* Bump to version 29 - Samba 3.6.0 will ship with interface version 28. */
139 /* Leave at 29 - not yet releases. Add fsctl. Richard Sharpe */
140 /* Leave at 29 - not yet released. add SMB_VFS_GET_DFS_REFERRAL() - metze */
141 /* Leave at 29 - not yet released. Remove l{list,get,set,remove}xattr - abartlet */
142 /* Leave at 29 - not yet released. move to plain off_t - abartlet */
143 /* Leave at 29 - not yet released. Remove sys_acl functions other than set and get - abartlet */
144 /* Leave at 29 - not yet released. Added backup_intent bool to files_struct - JRA */
145 /* Leave at 29 - not yet released. Add durable handle functions - metze/obnox */
146 /* Leave at 29 - not yet released. Added sys_acl_blob_get_file and sys_acl_blob_get_fd */
147 /* Bump to version 30 - Samba 4.0.0 will ship with interface version 30 */
148 /* Leave at 30 - not yet released. Added conn->cwd to save vfs_GetWd() calls. */
149 /* Leave at 30 - not yet released. Changed sys_acl_blob_get_file interface to remove type */
150 /* Bump to version 31 - Samba 4.1.0 will ship with interface version 31 */
151 /* Leave at 31 - not yet released. Make struct vuid_cache_entry in
152                 connection_struct a pointer. */
153 /* Leave at 31 - not yet released. Add share_access to vuid_cache_entry. */
154 /* Leave at 31 - not yet released. add SMB_VFS_COPY_CHUNK() */
155 /* Leave at 31 - not yet released. Remove the unused
156                 fsp->pending_break_messages array */
157 /* Leave at 31 - not yet released. add SMB_VFS_[GET/SET]_COMPRESSION() */
158
159 /* Bump to version 32 - Samba 4.2 will ship with that. */
160 /* Version 32 - Add "lease" to CREATE_FILE operation */
161 /* Version 32 - Add "lease" to struct files_struct */
162 /* Version 32 - Add SMB_VFS_READDIR_ATTR() */
163 /* Version 32 - Add in and out create context blobs to create_file */
164 /* Version 32 - Remove unnecessary SMB_VFS_DISK_FREE() small_query parameter */
165 /* Bump to version 33 - Samba 4.3 will ship with that. */
166 /* Version 33 - change fallocate mode flags param from enum->uint32_t */
167 /* Version 33 - Add snapshot create/delete calls */
168 /* Version 33 - Add OS X SMB2 AAPL copyfile extension flag to fsp */
169 /* Version 33 - Remove notify_watch_fn */
170 /* Bump to version 34 - Samba 4.4 will ship with that */
171 /* Version 34 - Remove bool posix_open, add uint64_t posix_flags */
172 /* Version 34 - Added bool posix_pathnames to struct smb_request */
173 /* Bump to version 35 - Samba 4.5 will ship with that */
174 /* Version 35 - Change get_nt_acl_fn from const char *, to
175                 const struct smb_filename * */
176 /* Version 35 - Change mkdir from const char *, to
177                 const struct smb_filename * */
178 /* Version 35 - Change rmdir from const char *, to
179                 const struct smb_filename * */
180 /* Version 35 - Change opendir from const char *, to
181                 const struct smb_filename * */
182 /* Version 35 - Wrap aio async funtions args in a struct vfs_aio_state */
183 /* Version 35 - Change chmod from const char *, to
184                 const struct smb_filename * */
185 /* Version 35 - Change chmod_acl from const char *, to
186                 const struct smb_filename * */
187 /* Version 35 - Change chown from const char *, to
188                 const struct smb_filename * */
189 /* Version 35 - Change lchown from const char *, to
190                 const struct smb_filename * */
191 /* Version 35 - Change streaminfo from const char *, to
192                 const struct smb_filename * */
193 /* Version 35 - Add uint32_t flags to struct smb_filename */
194 /* Version 35 - Add get/set/fget/fset dos attribute functions. */
195 /* Version 35 - Add bool use_ofd_locks to struct files_struct */
196 /* Bump to version 36 - Samba 4.6 will ship with that */
197 /* Version 36 - Remove is_offline and set_offline */
198 /* Version 37 - Module init functions now take a TALLOC_CTX * parameter. */
199 /* Version 37 - Add vfs_copy_chunk_flags for DUP_EXTENTS_TO_FILE */
200 /* Version 37 - Change sys_acl_delete_def_file from const char *
201                 to const struct smb_filename * */
202 /* Version 37 - Change sys_acl_get_file from const char *
203                 to const struct smb_filename * */
204 /* Version 37 - Change sys_acl_blob_get_file from const char *
205                 to const struct smb_filename * */
206 /* Version 37 - Change sys_acl_set_file from const char *
207                 to const struct smb_filename * */
208 /* Version 37 - Change listxattr from const char *
209                 to const struct smb_filename * */
210 /* Version 37 - Change removexattr from const char *
211                 to const struct smb_filename * */
212 /* Version 37 - Change setxattr from const char *
213                 to const struct smb_filename * */
214 /* Version 37 - Change getxattr from const char *
215                 to const struct smb_filename * */
216 /* Version 37 - Change mknod from const char * to const struct smb_filename * */
217 /* Version 37 - Change chflags from const char *
218                 to const struct smb_filename * */
219 /* Version 37 - Change disk_free from const char *
220                 to const struct smb_filename * */
221 /* Version 37 - Change get_quota from const char *
222                 to const struct smb_filename * */
223 /* Version 37 - Change link from const char *
224                 to const struct smb_filename * */
225 /* Version 37 - Change statvfs from const char *
226                 to const struct smb_filename * */
227 /* Version 37 - Change readlink from const char *
228                 to const struct smb_filename * */
229 /* Version 37 - Change symlink from const char *
230                 to const struct smb_filename * */
231 /* Version 37 - Change chdir from const char *
232                 to const struct smb_filename * */
233 /* Version 37 - Change getwd from char *
234                 to const struct smb_filename * */
235 /* Version 37 - Change conn->cwd from char *
236                 to struct smb_filename * */
237 /* Version 37 - Change realpath from char *
238                 to struct smb_filename * */
239 /* Version 37 - Change connectpath from char *
240                 to struct smb_filename * */
241 /* Version 37 - Add SMB_VFS_OFFLOAD_READ_SEND/RECV */
242 /* Version 37 - Rename SMB_VFS_COPY_CHUNK_SEND/RECV to
243                 SMB_VFS_OFFLOAD_READ_SEND/RECV */
244 /* Version 37 - Remove SMB_VFS_STRICT_UNLOCK */
245 /* Version 37 - Rename SMB_VFS_STRICT_LOCK to
246                 SMB_VFS_STRICT_LOCK_CHECK */
247 /* Version 38 - Remove SMB_VFS_INIT_SEARCH_OP */
248 /* Bump to version 39, Samba 4.9 will ship with that */
249 /* Version 39 - Remove SMB_VFS_FSYNC
250                 Only implement async versions. */
251 /* Version 39 - Remove SMB_VFS_READ
252                 All users are now pread or async versions. */
253 /* Version 39 - Remove SMB_VFS_WRITE
254                 All users are now pwrite or async versions. */
255 /* Version 39 - Remove SMB_VFS_CHMOD_ACL - no longer used. */
256 /* Version 39 - Remove SMB_VFS_FCHMOD_ACL - no longer used. */
257 /* Version 39 - Remove struct dfree_cached_info pointer from
258                 connection struct */
259 /* Bump to version 40, Samba 4.10 will ship with that */
260 /* Version 40 - Add SMB_VFS_GETXATTRAT_SEND/RECV */
261 /* Version 40 - Add SMB_VFS_GET_DOS_ATTRIBUTES_SEND/RECV */
262 /* Bump to version 41, Samba 4.11 will ship with that */
263 /* Version 41 - Remove SMB_VFS_BRL_CANCEL_WINDOWS */
264 /* Version 41 - Remove unused st_ex_mask from struct stat_ex */
265 /* Version 41 - convert struct stat_ex.st_ex_calculated_birthtime to flags */
266 /* Version 41 - add st_ex_itime to struct stat_ex */
267 /* Version 41 - add st_ex_file_id to struct stat_ex */
268 /* Version 41 - add SMB_VFS_FS_FILE_ID */
269 /* Version 41 - Remove "blocking_lock" parameter from
270                 SMB_VFS_BRL_LOCK_WINDOWS */
271 /* Version 41 - Remove "msg_ctx" parameter from SMB_VFS_BRL_UNLOCK_WINDOWS */
272 /* Bump to version 42, Samba 4.12 will ship with that */
273 /* Version 42 - Remove share_access member from struct files_struct */
274 /* Version 42 - Make "lease" a const* in create_file_fn */
275 /* Version 42 - Move SMB_VFS_RENAME -> SMB_VFS_RENAMEAT */
276 /* Version 42 - Move SMB_VFS_LINK -> SMB_VFS_LINKAT. */
277 /* Version 42 - Move SMB_VFS_MKNOD -> SMB_VFS_MKDNODAT. */
278 /* Version 42 - Move SMB_VFS_READLINK -> SMB_VFS_READLINKAT. */
279 /* Version 42 - Move SMB_VFS_SYMLINK -> SMB_VFS_SYMLINKAT. */
280 /* Version 42 - Move SMB_VFS_MKDIR -> SMB_VFS_MKDIRAT. */
281 /* Version 42 - Move change_to_user() -> change_to_user_and_service() */
282 /* Version 42 - Move change_to_user_by_fsp() -> change_to_user_and_service_by_fsp() */
283 /* Version 42 - Move [un]become_user*() -> [un]become_user_without_service*() */
284 /* Version 42 - Move SMB_VFS_UNLINK -> SMB_VFS_UNLINKAT. */
285 /* Version 42 - Add SMB_VFS_FCNTL */
286 /* Version 42 - Remove SMB_VFS_RMDIR.
287                 Use SMB_VFS_UNLINKAT(.., AT_REMOVEDIR) instead. */
288 /* Version 42 - Remove SMB_VFS_CHOWN */
289 /* Version 42 - Remove struct write_cache *wcp from files_struct */
290
291 #define SMB_VFS_INTERFACE_VERSION 42
292
293 /*
294     All intercepted VFS operations must be declared as static functions inside module source
295     in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
296     example VFS modules for more details.
297 */
298
299 /* VFS operations structure */
300
301 struct vfs_handle_struct;
302 struct connection_struct;
303 struct files_struct;
304 struct security_descriptor;
305 struct vfs_statvfs_struct;
306 struct smb_request;
307 struct ea_list;
308 struct smb_file_time;
309 struct smb_filename;
310 struct dfs_GetDFSReferral;
311
312 typedef union unid_t {
313         uid_t uid;
314         gid_t gid;
315 } unid_t;
316
317 struct fd_handle {
318         size_t ref_count;
319         int fd;
320         uint64_t position_information;
321         off_t pos;
322         uint32_t private_options;       /* NT Create options, but we only look at
323                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_DOS and
324                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_FCB and
325                                  * NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE
326                                  * for print files *only*, where
327                                  * DELETE_ON_CLOSE is not stored in the share
328                                  * mode database.
329                                  */
330         uint64_t gen_id;
331 };
332
333 struct fsp_lease {
334         size_t ref_count;
335         struct smbd_server_connection *sconn;
336         struct tevent_timer *timeout;
337         struct smb2_lease lease;
338 };
339
340 typedef struct files_struct {
341         struct files_struct *next, *prev;
342         uint64_t fnum;
343         struct smbXsrv_open *op;
344         struct connection_struct *conn;
345         struct fd_handle *fh;
346         unsigned int num_smb_operations;
347         struct file_id file_id;
348         uint64_t initial_allocation_size; /* Faked up initial allocation on disk. */
349         uint16_t file_pid;
350         uint64_t vuid; /* SMB2 compat */
351         struct timeval open_time;
352         uint32_t access_mask;           /* NTCreateX access bits (FILE_READ_DATA etc.) */
353         bool kernel_share_modes_taken;
354
355         bool update_write_time_triggered;
356         struct tevent_timer *update_write_time_event;
357         bool update_write_time_on_close;
358         struct timespec close_write_time;
359         bool write_time_forced;
360
361         int oplock_type;
362
363         /*
364          * Cache of our lease_type, stored as "current_state" in
365          * leases.tdb
366          */
367         int leases_db_seqnum;
368         uint32_t lease_type;
369
370         struct fsp_lease *lease;
371         int sent_oplock_break;
372         struct tevent_timer *oplock_timeout;
373         struct lock_struct last_lock_failure;
374         int current_lock_count; /* Count the number of outstanding locks and pending locks. */
375
376         bool can_lock;
377         bool can_read;
378         bool can_write;
379         bool modified;
380         bool is_directory;
381         bool aio_write_behind;
382         bool initial_delete_on_close; /* Only set at NTCreateX if file was created. */
383         bool delete_on_close;
384         uint64_t posix_flags;
385         bool is_sparse;
386         bool backup_intent; /* Handle was successfully opened with backup intent
387                                 and opener has privilege to do so. */
388         bool use_ofd_locks; /* Are we using open file description locks ? */
389         struct smb_filename *fsp_name;
390         uint32_t name_hash;             /* Jenkins hash of full pathname. */
391         uint64_t mid;                   /* Mid of the operation that created us. */
392
393         struct vfs_fsp_data *vfs_extension;
394         struct fake_file_handle *fake_file_handle;
395
396         struct notify_change_buf *notify;
397
398         struct files_struct *base_fsp; /* placeholder for delete on close */
399
400         /*
401          * Cache of share_mode_data->flags
402          */
403         int share_mode_flags_seqnum;
404         uint16_t share_mode_flags;
405
406         /*
407          * Read-only cached brlock record, thrown away when the
408          * brlock.tdb seqnum changes. This avoids fetching data from
409          * the brlock.tdb on every read/write call.
410          */
411         int brlock_seqnum;
412         struct byte_range_lock *brlock_rec;
413
414         struct dptr_struct *dptr;
415
416         /* if not NULL, means this is a print file */
417         struct print_file_data *print_file;
418
419         /*
420          * Optimize the aio_requests array for high performance: Never
421          * shrink it, maintain num_aio_requests separately
422          */
423         unsigned num_aio_requests;
424         struct tevent_req **aio_requests;
425         bool closing;
426
427         /*
428          * Requests waiting for smb1 byte range locks. They are
429          * generated by smbd_smb1_do_locks_send and are required here,
430          * because lock cancel operations index through reply_lockingX
431          * not based on mid but on the lock type and range.
432          */
433         struct tevent_req **blocked_smb1_lock_reqs;
434
435         /*
436          * SMB1 remembers lock failures and delays repeated blocking
437          * lock attempts on the same offset.
438          */
439         bool lock_failure_seen;
440         uint64_t lock_failure_offset;
441
442         /*
443          * If a close request comes in while we still have aio_requests
444          * around, we need to hold back the close. When all aio_requests are
445          * done, the aio completion routines need tevent_wait_done() on
446          * this. A bit ugly, but before we have close_file() fully async
447          * possibly the simplest approach. Thanks, Jeremy for the idea.
448          */
449         struct tevent_req *deferred_close;
450 } files_struct;
451
452 #define FSP_POSIX_FLAGS_OPEN            0x01
453 #define FSP_POSIX_FLAGS_RENAME          0x02
454 #define FSP_POSIX_FLAGS_PATHNAMES       0x04
455
456 #define FSP_POSIX_FLAGS_ALL                     \
457         (FSP_POSIX_FLAGS_OPEN |                 \
458          FSP_POSIX_FLAGS_PATHNAMES |            \
459          FSP_POSIX_FLAGS_RENAME)
460
461 struct vuid_cache_entry {
462         struct auth_session_info *session_info;
463         uint64_t vuid; /* SMB2 compat */
464         bool read_only;
465         uint32_t share_access;
466 };
467
468 struct vuid_cache {
469         unsigned int next_entry;
470         struct vuid_cache_entry array[VUID_CACHE_SIZE];
471 };
472
473 typedef struct {
474         char *name;
475         bool is_wild;
476 } name_compare_entry;
477
478 struct share_params {
479         int service;
480 };
481
482 typedef struct connection_struct {
483         struct connection_struct *next, *prev;
484         struct smbd_server_connection *sconn; /* can be NULL */
485         struct smbXsrv_tcon *tcon; /* can be NULL */
486         uint32_t cnum; /* an index passed over the wire */
487         struct share_params *params;
488         bool force_user;
489         struct vuid_cache *vuid_cache;
490         bool printer;
491         bool ipc;
492         bool read_only; /* Attributes for the current user of the share. */
493         uint32_t share_access;
494         /* Does this filesystem honor
495            sub second timestamps on files
496            and directories when setting time ? */
497         enum timestamp_set_resolution ts_res;
498         char *connectpath;
499         char *origpath;
500         struct files_struct *cwd_fsp; /* Working directory. */
501         bool tcon_done;
502
503         struct vfs_handle_struct *vfs_handles;          /* for the new plugins */
504
505         /*
506          * This represents the user information on this connection. Depending
507          * on the vuid using this tid, this might change per SMB request.
508          */
509         struct auth_session_info *session_info;
510
511         /*
512          * If the "force group" parameter is set, this is the primary gid that
513          * may be used in the users token, depending on the vuid using this tid.
514          */
515         gid_t force_group_gid;
516
517         uint64_t vuid; /* vuid of user who *opened* this connection, or UID_FIELD_INVALID */
518
519         time_t lastused;
520         time_t lastused_count;
521         int num_files_open;
522         unsigned int num_smb_operations; /* Count of smb operations on this tree. */
523         int encrypt_level;
524         bool encrypted_tid;
525
526         /* Semantics requested by the client or forced by the server config. */
527         bool case_sensitive;
528         bool case_preserve;
529         bool short_case_preserve;
530
531         /* Semantics provided by the underlying filesystem. */
532         int fs_capabilities;
533         /* Device number of the directory of the share mount.
534            Used to ensure unique FileIndex returns. */
535         SMB_DEV_T base_share_dev;
536
537         name_compare_entry *hide_list; /* Per-share list of files to return as hidden. */
538         name_compare_entry *veto_list; /* Per-share list of files to veto (never show). */
539         name_compare_entry *veto_oplock_list; /* Per-share list of files to refuse oplocks on. */       
540         name_compare_entry *aio_write_behind_list; /* Per-share list of files to use aio write behind on. */       
541         struct trans_state *pending_trans;
542
543         struct rpc_pipe_client *spoolss_pipe;
544
545 } connection_struct;
546
547 struct smbd_smb2_request;
548 struct privilege_paths;
549
550 struct smb_request {
551         uint8_t cmd;
552         uint16_t flags2;
553         uint16_t smbpid;
554         uint64_t mid; /* For compatibility with SMB2. */
555         uint32_t seqnum;
556         uint64_t vuid; /* For compatibility with SMB2. */
557         uint32_t tid;
558         uint8_t  wct;
559         const uint16_t *vwv;
560         uint16_t buflen;
561         const uint8_t *buf;
562         const uint8_t *inbuf;
563
564         /*
565          * Async handling in the main smb processing loop is directed by
566          * outbuf: reply_xxx routines indicate sync behaviour by putting their
567          * reply into "outbuf". If they leave it as NULL, they take care of it
568          * themselves, possibly later.
569          *
570          * If async handling is wanted, the reply_xxx routine must make sure
571          * that it talloc_move()s the smb_req somewhere else.
572          */
573         uint8_t *outbuf;
574
575         size_t unread_bytes;
576         bool encrypted;
577         connection_struct *conn;
578         struct smbd_server_connection *sconn;
579         struct smbXsrv_connection *xconn;
580         struct smb_perfcount_data pcd;
581
582         /*
583          * Chained request handling
584          */
585         struct files_struct *chain_fsp;
586
587         /*
588          * state information for async smb handling
589          */
590         void *async_priv;
591
592         /*
593          * Back pointer to smb2 request.
594          */
595         struct smbd_smb2_request *smb2req;
596
597         /*
598          * Pathnames used if request done
599          * under privilege.
600          */
601         struct privilege_paths *priv_paths;
602
603         /*
604          * Request list for chained requests, we're part of it.
605          */
606         struct smb_request **chain;
607
608         struct timeval request_time;
609
610         bool posix_pathnames;
611 };
612
613 /*
614  * Info about an alternate data stream
615  */
616
617 struct stream_struct {
618         off_t size;
619         off_t alloc_size;
620         char *name;
621 };
622
623 /* time info */
624 struct smb_file_time {
625         struct timespec mtime;
626         struct timespec atime;
627         struct timespec ctime;
628         struct timespec create_time;
629 };
630
631 /*
632  * smb_filename
633  */
634 struct smb_filename {
635         char *base_name;
636         char *stream_name;
637         char *original_lcomp;
638         uint32_t flags;
639         SMB_STRUCT_STAT st;
640 };
641
642 /*
643  * smb_filename flags. Define in terms of the FSP_POSIX_FLAGS_XX
644  * to keep the numeric values consistent.
645  */
646
647 #define SMB_FILENAME_POSIX_PATH         FSP_POSIX_FLAGS_PATHNAMES
648
649 #define VFS_FIND(__fn__) while (handle->fns->__fn__##_fn==NULL) { \
650                                 handle = handle->next; \
651                          }
652
653 enum vfs_translate_direction {
654         vfs_translate_to_unix = 0,
655         vfs_translate_to_windows
656 };
657
658 enum vfs_fallocate_flags {
659         VFS_FALLOCATE_FL_KEEP_SIZE              = 0x0001,
660         VFS_FALLOCATE_FL_PUNCH_HOLE             = 0x0002,
661 };
662
663 struct vfs_aio_state {
664         int error;
665         uint64_t duration;
666 };
667
668 /*
669     Available VFS operations. These values must be in sync with vfs_ops struct
670     (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
671     In particular, if new operations are added to vfs_ops, appropriate constants
672     should be added to vfs_op_type so that order of them kept same as in vfs_ops.
673 */
674 struct shadow_copy_data;
675
676 struct vfs_fn_pointers {
677         /* Disk operations */
678
679         int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
680         void (*disconnect_fn)(struct vfs_handle_struct *handle);
681         uint64_t (*disk_free_fn)(struct vfs_handle_struct *handle,
682                                 const struct smb_filename *smb_fname,
683                                 uint64_t *bsize,
684                                 uint64_t *dfree,
685                                 uint64_t *dsize);
686         int (*get_quota_fn)(struct vfs_handle_struct *handle,
687                                 const struct smb_filename *smb_fname,
688                                 enum SMB_QUOTA_TYPE qtype,
689                                 unid_t id,
690                                 SMB_DISK_QUOTA *qt);
691         int (*set_quota_fn)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
692         int (*get_shadow_copy_data_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, struct shadow_copy_data *shadow_copy_data, bool labels);
693         int (*statvfs_fn)(struct vfs_handle_struct *handle,
694                                 const struct smb_filename *smb_fname,
695                                 struct vfs_statvfs_struct *statbuf);
696         uint32_t (*fs_capabilities_fn)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
697
698         /*
699          * Note: that "struct dfs_GetDFSReferral *r"
700          * needs to be a valid TALLOC_CTX
701          */
702         NTSTATUS (*get_dfs_referrals_fn)(struct vfs_handle_struct *handle,
703                                          struct dfs_GetDFSReferral *r);
704
705         /* Directory operations */
706
707         DIR *(*opendir_fn)(struct vfs_handle_struct *handle,
708                                         const struct smb_filename *smb_fname,
709                                         const char *mask,
710                                         uint32_t attributes);
711         DIR *(*fdopendir_fn)(struct vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32_t attributes);
712         struct dirent *(*readdir_fn)(struct vfs_handle_struct *handle,
713                                          DIR *dirp,
714                                          SMB_STRUCT_STAT *sbuf);
715         void (*seekdir_fn)(struct vfs_handle_struct *handle, DIR *dirp, long offset);
716         long (*telldir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
717         void (*rewind_dir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
718         int (*mkdirat_fn)(struct vfs_handle_struct *handle,
719                         struct files_struct *dirfsp,
720                         const struct smb_filename *smb_fname,
721                         mode_t mode);
722         int (*closedir_fn)(struct vfs_handle_struct *handle, DIR *dir);
723
724         /* File operations */
725
726         int (*open_fn)(struct vfs_handle_struct *handle,
727                        struct smb_filename *smb_fname, files_struct *fsp,
728                        int flags, mode_t mode);
729         NTSTATUS (*create_file_fn)(struct vfs_handle_struct *handle,
730                                    struct smb_request *req,
731                                    uint16_t root_dir_fid,
732                                    struct smb_filename *smb_fname,
733                                    uint32_t access_mask,
734                                    uint32_t share_access,
735                                    uint32_t create_disposition,
736                                    uint32_t create_options,
737                                    uint32_t file_attributes,
738                                    uint32_t oplock_request,
739                                    const struct smb2_lease *lease,
740                                    uint64_t allocation_size,
741                                    uint32_t private_flags,
742                                    struct security_descriptor *sd,
743                                    struct ea_list *ea_list,
744                                    files_struct **result,
745                                    int *pinfo,
746                                    const struct smb2_create_blobs *in_context_blobs,
747                                    struct smb2_create_blobs *out_context_blobs);
748         int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
749         ssize_t (*pread_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, off_t offset);
750         struct tevent_req *(*pread_send_fn)(struct vfs_handle_struct *handle,
751                                             TALLOC_CTX *mem_ctx,
752                                             struct tevent_context *ev,
753                                             struct files_struct *fsp,
754                                             void *data,
755                                             size_t n, off_t offset);
756         ssize_t (*pread_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
757         ssize_t (*pwrite_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, off_t offset);
758         struct tevent_req *(*pwrite_send_fn)(struct vfs_handle_struct *handle,
759                                              TALLOC_CTX *mem_ctx,
760                                              struct tevent_context *ev,
761                                              struct files_struct *fsp,
762                                              const void *data,
763                                              size_t n, off_t offset);
764         ssize_t (*pwrite_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
765         off_t (*lseek_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset, int whence);
766         ssize_t (*sendfile_fn)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, off_t offset, size_t count);
767         ssize_t (*recvfile_fn)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, off_t offset, size_t count);
768         int (*renameat_fn)(struct vfs_handle_struct *handle,
769                          struct files_struct *srcdir_fsp,
770                          const struct smb_filename *smb_fname_src,
771                          struct files_struct *dstdir_fsp,
772                          const struct smb_filename *smb_fname_dst);
773         struct tevent_req *(*fsync_send_fn)(struct vfs_handle_struct *handle,
774                                             TALLOC_CTX *mem_ctx,
775                                             struct tevent_context *ev,
776                                             struct files_struct *fsp);
777         int (*fsync_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
778         int (*stat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
779         int (*fstat_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
780         int (*lstat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
781         uint64_t (*get_alloc_size_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
782         int (*unlinkat_fn)(struct vfs_handle_struct *handle,
783                         struct files_struct *srcdir_fsp,
784                         const struct smb_filename *smb_fname,
785                         int flags);
786         int (*chmod_fn)(struct vfs_handle_struct *handle,
787                         const struct smb_filename *smb_fname,
788                         mode_t mode);
789         int (*fchmod_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
790         int (*fchown_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
791         int (*lchown_fn)(struct vfs_handle_struct *handle,
792                         const struct smb_filename *smb_fname,
793                         uid_t uid,
794                         gid_t gid);
795         int (*chdir_fn)(struct vfs_handle_struct *handle,
796                          const struct smb_filename *smb_fname);
797         struct smb_filename *(*getwd_fn)(struct vfs_handle_struct *handle,
798                                 TALLOC_CTX *mem_ctx);
799         int (*ntimes_fn)(struct vfs_handle_struct *handle,
800                          const struct smb_filename *smb_fname,
801                          struct smb_file_time *ft);
802         int (*ftruncate_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset);
803         int (*fallocate_fn)(struct vfs_handle_struct *handle,
804                             struct files_struct *fsp,
805                             uint32_t mode,
806                             off_t offset,
807                             off_t len);
808         bool (*lock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, off_t offset, off_t count, int type);
809         int (*kernel_flock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
810                                uint32_t share_mode, uint32_t access_mask);
811         int (*fcntl_fn)(struct vfs_handle_struct *handle,
812                         struct files_struct *fsp, int cmd, va_list cmd_arg);
813         int (*linux_setlease_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
814         bool (*getlock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid);
815         int (*symlinkat_fn)(struct vfs_handle_struct *handle,
816                                 const char *link_contents,
817                                 struct files_struct *dirfsp,
818                                 const struct smb_filename *new_smb_fname);
819         int (*readlinkat_fn)(struct vfs_handle_struct *handle,
820                                 struct files_struct *dirfsp,
821                                 const struct smb_filename *smb_fname,
822                                 char *buf,
823                                 size_t bufsiz);
824         int (*linkat_fn)(struct vfs_handle_struct *handle,
825                                 struct files_struct *srcfsp,
826                                 const struct smb_filename *old_smb_fname,
827                                 struct files_struct *dstfsp,
828                                 const struct smb_filename *new_smb_fname,
829                                 int flags);
830         int (*mknodat_fn)(struct vfs_handle_struct *handle,
831                                 struct files_struct *dirfsp,
832                                 const struct smb_filename *smb_fname,
833                                 mode_t mode,
834                                 SMB_DEV_T dev);
835         struct smb_filename *(*realpath_fn)(struct vfs_handle_struct *handle,
836                                 TALLOC_CTX *ctx,
837                                 const struct smb_filename *smb_fname);
838         int (*chflags_fn)(struct vfs_handle_struct *handle,
839                                 const struct smb_filename *smb_fname,
840                                 unsigned int flags);
841         struct file_id (*file_id_create_fn)(struct vfs_handle_struct *handle,
842                                             const SMB_STRUCT_STAT *sbuf);
843         uint64_t (*fs_file_id_fn)(struct vfs_handle_struct *handle,
844                                   const SMB_STRUCT_STAT *sbuf);
845         struct tevent_req *(*offload_read_send_fn)(TALLOC_CTX *mem_ctx,
846                                                    struct tevent_context *ev,
847                                                    struct vfs_handle_struct *handle,
848                                                    struct files_struct *fsp,
849                                                    uint32_t fsctl,
850                                                    uint32_t ttl,
851                                                    off_t offset,
852                                                    size_t to_copy);
853         NTSTATUS (*offload_read_recv_fn)(struct tevent_req *req,
854                                          struct vfs_handle_struct *handle,
855                                          TALLOC_CTX *mem_ctx,
856                                          DATA_BLOB *token_blob);
857         struct tevent_req *(*offload_write_send_fn)(struct vfs_handle_struct *handle,
858                                                     TALLOC_CTX *mem_ctx,
859                                                     struct tevent_context *ev,
860                                                     uint32_t fsctl,
861                                                     DATA_BLOB *token,
862                                                     off_t transfer_offset,
863                                                     struct files_struct *dest_fsp,
864                                                     off_t dest_off,
865                                                     off_t to_copy);
866         NTSTATUS (*offload_write_recv_fn)(struct vfs_handle_struct *handle,
867                                           struct tevent_req *req,
868                                           off_t *copied);
869         NTSTATUS (*get_compression_fn)(struct vfs_handle_struct *handle,
870                                        TALLOC_CTX *mem_ctx,
871                                        struct files_struct *fsp,
872                                        struct smb_filename *smb_fname,
873                                        uint16_t *_compression_fmt);
874         NTSTATUS (*set_compression_fn)(struct vfs_handle_struct *handle,
875                                        TALLOC_CTX *mem_ctx,
876                                        struct files_struct *fsp,
877                                        uint16_t compression_fmt);
878         NTSTATUS (*snap_check_path_fn)(struct vfs_handle_struct *handle,
879                                        TALLOC_CTX *mem_ctx,
880                                        const char *service_path,
881                                        char **base_volume);
882         NTSTATUS (*snap_create_fn)(struct vfs_handle_struct *handle,
883                                    TALLOC_CTX *mem_ctx,
884                                    const char *base_volume,
885                                    time_t *tstamp,
886                                    bool rw,
887                                    char **base_path,
888                                    char **snap_path);
889         NTSTATUS (*snap_delete_fn)(struct vfs_handle_struct *handle,
890                                    TALLOC_CTX *mem_ctx,
891                                    char *base_path,
892                                    char *snap_path);
893
894         NTSTATUS (*streaminfo_fn)(struct vfs_handle_struct *handle,
895                                   struct files_struct *fsp,
896                                   const struct smb_filename *smb_fname,
897                                   TALLOC_CTX *mem_ctx,
898                                   unsigned int *num_streams,
899                                   struct stream_struct **streams);
900
901         int (*get_real_filename_fn)(struct vfs_handle_struct *handle,
902                                     const char *path,
903                                     const char *name,
904                                     TALLOC_CTX *mem_ctx,
905                                     char **found_name);
906
907         const char *(*connectpath_fn)(struct vfs_handle_struct *handle,
908                                       const struct smb_filename *smb_fname);
909
910         NTSTATUS (*brl_lock_windows_fn)(struct vfs_handle_struct *handle,
911                                         struct byte_range_lock *br_lck,
912                                         struct lock_struct *plock);
913
914         bool (*brl_unlock_windows_fn)(struct vfs_handle_struct *handle,
915                                       struct byte_range_lock *br_lck,
916                                       const struct lock_struct *plock);
917
918         bool (*strict_lock_check_fn)(struct vfs_handle_struct *handle,
919                                      struct files_struct *fsp,
920                                      struct lock_struct *plock);
921
922         NTSTATUS (*translate_name_fn)(struct vfs_handle_struct *handle,
923                                       const char *name,
924                                       enum vfs_translate_direction direction,
925                                       TALLOC_CTX *mem_ctx,
926                                       char **mapped_name);
927
928         NTSTATUS (*fsctl_fn)(struct vfs_handle_struct *handle,
929                              struct files_struct *fsp,
930                              TALLOC_CTX *ctx,
931                              uint32_t function,
932                              uint16_t req_flags,
933                              const uint8_t *_in_data,
934                              uint32_t in_len,
935                              uint8_t **_out_data,
936                              uint32_t max_out_len,
937                              uint32_t *out_len); 
938
939         NTSTATUS (*get_dos_attributes_fn)(struct vfs_handle_struct *handle,
940                                           struct smb_filename *smb_fname,
941                                           uint32_t *dosmode);
942
943         NTSTATUS (*fget_dos_attributes_fn)(struct vfs_handle_struct *handle,
944                                            struct files_struct *fsp,
945                                            uint32_t *dosmode);
946
947         NTSTATUS (*set_dos_attributes_fn)(struct vfs_handle_struct *handle,
948                                           const struct smb_filename *smb_fname,
949                                           uint32_t dosmode);
950
951         NTSTATUS (*fset_dos_attributes_fn)(struct vfs_handle_struct *hande,
952                                            struct files_struct *fsp,
953                                            uint32_t dosmode);
954
955         struct tevent_req *(*get_dos_attributes_send_fn)(
956                                 TALLOC_CTX *mem_ctx,
957                                 struct tevent_context *ev,
958                                 struct vfs_handle_struct *handle,
959                                 files_struct *dir_fsp,
960                                 struct smb_filename *smb_fname);
961
962         NTSTATUS (*get_dos_attributes_recv_fn)(
963                                 struct tevent_req *req,
964                                 struct vfs_aio_state *aio_state,
965                                 uint32_t *dosmode);
966
967         /* NT ACL operations. */
968
969         NTSTATUS (*fget_nt_acl_fn)(struct vfs_handle_struct *handle,
970                                    struct files_struct *fsp,
971                                    uint32_t security_info,
972                                    TALLOC_CTX *mem_ctx,
973                                    struct security_descriptor **ppdesc);
974         NTSTATUS (*get_nt_acl_fn)(struct vfs_handle_struct *handle,
975                                   const struct smb_filename *smb_fname,
976                                   uint32_t security_info,
977                                    TALLOC_CTX *mem_ctx,
978                                   struct security_descriptor **ppdesc);
979         NTSTATUS (*fset_nt_acl_fn)(struct vfs_handle_struct *handle,
980                                    struct files_struct *fsp,
981                                    uint32_t security_info_sent,
982                                    const struct security_descriptor *psd);
983
984         NTSTATUS (*audit_file_fn)(struct vfs_handle_struct *handle,
985                                   struct smb_filename *file,
986                                   struct security_acl *sacl,
987                                   uint32_t access_requested,
988                                   uint32_t access_denied);
989
990         /* POSIX ACL operations. */
991
992         SMB_ACL_T (*sys_acl_get_file_fn)(struct vfs_handle_struct *handle,
993                                          const struct smb_filename *smb_fname,
994                                          SMB_ACL_TYPE_T type,
995                                          TALLOC_CTX *mem_ctx);
996         SMB_ACL_T (*sys_acl_get_fd_fn)(struct vfs_handle_struct *handle,
997                                        struct files_struct *fsp,
998                                        TALLOC_CTX *mem_ctx);
999         int (*sys_acl_blob_get_file_fn)(struct vfs_handle_struct *handle,
1000                                         const struct smb_filename *smb_fname,
1001                                         TALLOC_CTX *mem_ctx,
1002                                         char **blob_description,
1003                                         DATA_BLOB *blob);
1004         int (*sys_acl_blob_get_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
1005                                       TALLOC_CTX *mem_ctx, char **blob_description,
1006                                       DATA_BLOB *blob);
1007         int (*sys_acl_set_file_fn)(struct vfs_handle_struct *handle,
1008                                         const struct smb_filename *smb_fname,
1009                                         SMB_ACL_TYPE_T acltype,
1010                                         SMB_ACL_T theacl);
1011         int (*sys_acl_set_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
1012         int (*sys_acl_delete_def_file_fn)(struct vfs_handle_struct *handle,
1013                                         const struct smb_filename *smb_fname);
1014
1015         /* EA operations. */
1016         ssize_t (*getxattr_fn)(struct vfs_handle_struct *handle,
1017                                         const struct smb_filename *smb_fname,
1018                                         const char *name,
1019                                         void *value,
1020                                         size_t size);
1021         struct tevent_req *(*getxattrat_send_fn)(
1022                                 TALLOC_CTX *mem_ctx,
1023                                 struct tevent_context *ev,
1024                                 struct vfs_handle_struct *handle,
1025                                 files_struct *dir_fsp,
1026                                 const struct smb_filename *smb_fname,
1027                                 const char *xattr_name,
1028                                 size_t alloc_hint);
1029         ssize_t (*getxattrat_recv_fn)(struct tevent_req *req,
1030                                       struct vfs_aio_state *aio_state,
1031                                       TALLOC_CTX *mem_ctx,
1032                                       uint8_t **xattr_value);
1033         ssize_t (*fgetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
1034         ssize_t (*listxattr_fn)(struct vfs_handle_struct *handle,
1035                                         const struct smb_filename *smb_fname,
1036                                         char *list,
1037                                         size_t size);
1038         ssize_t (*flistxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
1039         int (*removexattr_fn)(struct vfs_handle_struct *handle,
1040                                         const struct smb_filename *smb_fname,
1041                                         const char *name);
1042         int (*fremovexattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
1043         int (*setxattr_fn)(struct vfs_handle_struct *handle,
1044                                         const struct smb_filename *smb_fname,
1045                                         const char *name,
1046                                         const void *value,
1047                                         size_t size,
1048                                         int flags);
1049         int (*fsetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
1050
1051         /* aio operations */
1052         bool (*aio_force_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
1053
1054         /* durable handle operations */
1055         NTSTATUS (*durable_cookie_fn)(struct vfs_handle_struct *handle,
1056                                       struct files_struct *fsp,
1057                                       TALLOC_CTX *mem_ctx,
1058                                       DATA_BLOB *cookie);
1059         NTSTATUS (*durable_disconnect_fn)(struct vfs_handle_struct *handle,
1060                                           struct files_struct *fsp,
1061                                           const DATA_BLOB old_cookie,
1062                                           TALLOC_CTX *mem_ctx,
1063                                           DATA_BLOB *new_cookie);
1064         NTSTATUS (*durable_reconnect_fn)(struct vfs_handle_struct *handle,
1065                                          struct smb_request *smb1req,
1066                                          struct smbXsrv_open *op,
1067                                          const DATA_BLOB old_cookie,
1068                                          TALLOC_CTX *mem_ctx,
1069                                          struct files_struct **fsp,
1070                                          DATA_BLOB *new_cookie);
1071
1072         NTSTATUS (*readdir_attr_fn)(struct vfs_handle_struct *handle,
1073                                     const struct smb_filename *fname,
1074                                     TALLOC_CTX *mem_ctx,
1075                                     struct readdir_attr_data **attr_data);
1076 };
1077
1078 /*
1079     VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
1080     which describes all operations this module is willing to intercept.
1081     VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
1082     using this information.
1083 */
1084
1085 typedef struct vfs_handle_struct {
1086         struct vfs_handle_struct  *next, *prev;
1087         const char *param;
1088         struct connection_struct *conn;
1089         const struct vfs_fn_pointers *fns;
1090         void *data;
1091         void (*free_data)(void **data);
1092 } vfs_handle_struct;
1093
1094
1095 typedef struct vfs_statvfs_struct {
1096         /* For undefined recommended transfer size return -1 in that field */
1097         uint32_t OptimalTransferSize;  /* bsize on some os, iosize on other os */
1098         uint32_t BlockSize;
1099
1100         /*
1101          The next three fields are in terms of the block size.
1102          (above). If block size is unknown, 4096 would be a
1103          reasonable block size for a server to report.
1104          Note that returning the blocks/blocksavail removes need
1105          to make a second call (to QFSInfo level 0x103 to get this info.
1106          UserBlockAvail is typically less than or equal to BlocksAvail,
1107          if no distinction is made return the same value in each.
1108         */
1109
1110         uint64_t TotalBlocks;
1111         uint64_t BlocksAvail;       /* bfree */
1112         uint64_t UserBlocksAvail;   /* bavail */
1113
1114         /* For undefined Node fields or FSID return -1 */
1115         uint64_t TotalFileNodes;
1116         uint64_t FreeFileNodes;
1117         uint64_t FsIdentifier;   /* fsid */
1118         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
1119         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
1120
1121         int FsCapabilities;
1122 } vfs_statvfs_struct;
1123
1124 /* Add a new FSP extension of the given type. Returns a pointer to the
1125  * extenstion data.
1126  */
1127 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn)            \
1128     (type *)vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
1129
1130 /* Return a pointer to the existing FSP extension data. */
1131 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
1132     vfs_fetch_fsp_extension(handle, (fsp))
1133
1134 /* Return the talloc context associated with an FSP extension. */
1135 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
1136     vfs_memctx_fsp_extension(handle, (fsp))
1137
1138 /* Remove and destroy an FSP extension. */
1139 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
1140     vfs_remove_fsp_extension((handle), (fsp))
1141
1142 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
1143         if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
1144                 DEBUG(0,("%s() failed to get vfs_handle->data!\n",__FUNCTION__)); \
1145                 ret; \
1146         } \
1147 }
1148
1149 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
1150         if (!(handle)) { \
1151                 DEBUG(0,("%s() failed to set handle->data!\n",__FUNCTION__)); \
1152                 ret; \
1153         } else { \
1154                 if ((handle)->free_data) { \
1155                         (handle)->free_data(&(handle)->data); \
1156                 } \
1157                 (handle)->data = (void *)datap; \
1158                 (handle)->free_data = free_fn; \
1159         } \
1160 }
1161
1162 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
1163         if ((handle) && (handle)->free_data) { \
1164                 (handle)->free_data(&(handle)->data); \
1165         } \
1166 }
1167
1168 /* Check whether module-specific data handle was already allocated or not */
1169 #define SMB_VFS_HANDLE_TEST_DATA(handle)  ( !(handle) || !(handle)->data ? False : True )
1170
1171 #define SMB_VFS_OP(x) ((void *) x)
1172
1173 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
1174
1175 #include "vfs_macros.h"
1176
1177 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1178                          const char *service, const char *user);
1179 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
1180 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1181                                 const struct smb_filename *smb_filename,
1182                                 uint64_t *bsize,
1183                                 uint64_t *dfree,
1184                                 uint64_t *dsize);
1185 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1186                                 const struct smb_filename *smb_filename,
1187                                 enum SMB_QUOTA_TYPE qtype,
1188                                 unid_t id,
1189                                 SMB_DISK_QUOTA *qt);
1190 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1191                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1192                            SMB_DISK_QUOTA *qt);
1193 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1194                                       struct files_struct *fsp,
1195                                       struct shadow_copy_data *shadow_copy_data,
1196                                       bool labels);
1197 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle,
1198                         const struct smb_filename *smb_fname,
1199                         struct vfs_statvfs_struct *statbuf);
1200 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1201                                       enum timestamp_set_resolution *p_ts_res);
1202 /*
1203  * Note: that "struct dfs_GetDFSReferral *r" needs to be a valid TALLOC_CTX
1204  */
1205 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
1206                                         struct dfs_GetDFSReferral *r);
1207 DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1208                         const struct smb_filename *smb_fname,
1209                         const char *mask,
1210                         uint32_t attributes);
1211 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1212                                         struct files_struct *fsp,
1213                                         const char *mask,
1214                                         uint32_t attributes);
1215 struct dirent *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1216                                         DIR *dirp,
1217                                         SMB_STRUCT_STAT *sbuf);
1218 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1219                           DIR *dirp, long offset);
1220 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1221                           DIR *dirp);
1222 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1223                              DIR *dirp);
1224 int smb_vfs_call_mkdirat(struct vfs_handle_struct *handle,
1225                         struct files_struct *dirfsp,
1226                         const struct smb_filename *smb_fname,
1227                         mode_t mode);
1228 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1229                           DIR *dir);
1230 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1231                       struct smb_filename *smb_fname, struct files_struct *fsp,
1232                       int flags, mode_t mode);
1233 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1234                                   struct smb_request *req,
1235                                   uint16_t root_dir_fid,
1236                                   struct smb_filename *smb_fname,
1237                                   uint32_t access_mask,
1238                                   uint32_t share_access,
1239                                   uint32_t create_disposition,
1240                                   uint32_t create_options,
1241                                   uint32_t file_attributes,
1242                                   uint32_t oplock_request,
1243                                   const struct smb2_lease *lease,
1244                                   uint64_t allocation_size,
1245                                   uint32_t private_flags,
1246                                   struct security_descriptor *sd,
1247                                   struct ea_list *ea_list,
1248                                   files_struct **result,
1249                                   int *pinfo,
1250                                   const struct smb2_create_blobs *in_context_blobs,
1251                                   struct smb2_create_blobs *out_context_blobs);
1252 int smb_vfs_call_close(struct vfs_handle_struct *handle,
1253                        struct files_struct *fsp);
1254 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1255                            struct files_struct *fsp, void *data, size_t n,
1256                            off_t offset);
1257 struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle,
1258                                            TALLOC_CTX *mem_ctx,
1259                                            struct tevent_context *ev,
1260                                            struct files_struct *fsp,
1261                                            void *data,
1262                                            size_t n, off_t offset);
1263 ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1264
1265 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1266                             struct files_struct *fsp, const void *data,
1267                             size_t n, off_t offset);
1268 struct tevent_req *smb_vfs_call_pwrite_send(struct vfs_handle_struct *handle,
1269                                             TALLOC_CTX *mem_ctx,
1270                                             struct tevent_context *ev,
1271                                             struct files_struct *fsp,
1272                                             const void *data,
1273                                             size_t n, off_t offset);
1274 ssize_t SMB_VFS_PWRITE_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1275
1276 off_t smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1277                              struct files_struct *fsp, off_t offset,
1278                              int whence);
1279 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1280                               files_struct *fromfsp, const DATA_BLOB *header,
1281                               off_t offset, size_t count);
1282 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1283                               files_struct *tofsp, off_t offset,
1284                               size_t count);
1285 int smb_vfs_call_renameat(struct vfs_handle_struct *handle,
1286                         struct files_struct *srcfsp,
1287                         const struct smb_filename *smb_fname_src,
1288                         struct files_struct *dstfsp,
1289                         const struct smb_filename *smb_fname_dst);
1290
1291 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
1292                                            TALLOC_CTX *mem_ctx,
1293                                            struct tevent_context *ev,
1294                                            struct files_struct *fsp);
1295 int SMB_VFS_FSYNC_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1296
1297 int smb_vfs_fsync_sync(files_struct *fsp);
1298 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1299                       struct smb_filename *smb_fname);
1300 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1301                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
1302 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1303                        struct smb_filename *smb_filename);
1304 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1305                                      struct files_struct *fsp,
1306                                      const SMB_STRUCT_STAT *sbuf);
1307 int smb_vfs_call_unlinkat(struct vfs_handle_struct *handle,
1308                         struct files_struct *dirfsp,
1309                         const struct smb_filename *smb_fname,
1310                         int flags);
1311 int smb_vfs_call_chmod(struct vfs_handle_struct *handle,
1312                         const struct smb_filename *smb_fname,
1313                         mode_t mode);
1314 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1315                         struct files_struct *fsp, mode_t mode);
1316 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1317                         struct files_struct *fsp, uid_t uid, gid_t gid);
1318 int smb_vfs_call_lchown(struct vfs_handle_struct *handle,
1319                         const struct smb_filename *smb_fname,
1320                         uid_t uid,
1321                         gid_t gid);
1322 int smb_vfs_call_chdir(struct vfs_handle_struct *handle,
1323                         const struct smb_filename *smb_fname);
1324 struct smb_filename *smb_vfs_call_getwd(struct vfs_handle_struct *handle,
1325                                 TALLOC_CTX *ctx);
1326 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1327                         const struct smb_filename *smb_fname,
1328                         struct smb_file_time *ft);
1329 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1330                            struct files_struct *fsp, off_t offset);
1331 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1332                            struct files_struct *fsp,
1333                            uint32_t mode,
1334                            off_t offset,
1335                            off_t len);
1336 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
1337                        struct files_struct *fsp, int op, off_t offset,
1338                        off_t count, int type);
1339 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1340                               struct files_struct *fsp, uint32_t share_mode,
1341                               uint32_t access_mask);
1342 int smb_vfs_call_fcntl(struct vfs_handle_struct *handle,
1343                        struct files_struct *fsp, int cmd, ...);
1344 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1345                                 struct files_struct *fsp, int leasetype);
1346 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
1347                           struct files_struct *fsp, off_t *poffset,
1348                           off_t *pcount, int *ptype, pid_t *ppid);
1349 int smb_vfs_call_symlinkat(struct vfs_handle_struct *handle,
1350                         const char *link_contents,
1351                         struct files_struct *dirfsp,
1352                         const struct smb_filename *new_smb_fname);
1353 int smb_vfs_call_readlinkat(struct vfs_handle_struct *handle,
1354                         struct files_struct *dirfsp,
1355                         const struct smb_filename *smb_fname,
1356                         char *buf,
1357                         size_t bufsiz);
1358 int smb_vfs_call_linkat(struct vfs_handle_struct *handle,
1359                         struct files_struct *srcfsp,
1360                         const struct smb_filename *old_smb_fname,
1361                         struct files_struct *dstfsp,
1362                         const struct smb_filename *new_smb_fname,
1363                         int flags);
1364 int smb_vfs_call_mknodat(struct vfs_handle_struct *handle,
1365                         struct files_struct *dirfsp,
1366                         const struct smb_filename *smb_fname,
1367                         mode_t mode,
1368                         SMB_DEV_T dev);
1369 struct smb_filename *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1370                         TALLOC_CTX *ctx,
1371                         const struct smb_filename *smb_fname);
1372 int smb_vfs_call_chflags(struct vfs_handle_struct *handle,
1373                         const struct smb_filename *smb_fname,
1374                         unsigned int flags);
1375 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1376                                            const SMB_STRUCT_STAT *sbuf);
1377 uint64_t smb_vfs_call_fs_file_id(struct vfs_handle_struct *handle,
1378                                  const SMB_STRUCT_STAT *sbuf);
1379 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1380                                  struct files_struct *fsp,
1381                                  const struct smb_filename *smb_fname,
1382                                  TALLOC_CTX *mem_ctx,
1383                                  unsigned int *num_streams,
1384                                  struct stream_struct **streams);
1385 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1386                                    const char *path, const char *name,
1387                                    TALLOC_CTX *mem_ctx, char **found_name);
1388 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1389                                      const struct smb_filename *smb_fname);
1390 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
1391                                        struct byte_range_lock *br_lck,
1392                                        struct lock_struct *plock);
1393 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
1394                                      struct byte_range_lock *br_lck,
1395                                      const struct lock_struct *plock);
1396 bool smb_vfs_call_strict_lock_check(struct vfs_handle_struct *handle,
1397                                     struct files_struct *fsp,
1398                                     struct lock_struct *plock);
1399 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1400                                      const char *name,
1401                                      enum vfs_translate_direction direction,
1402                                      TALLOC_CTX *mem_ctx,
1403                                      char **mapped_name);
1404 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
1405                             struct files_struct *fsp,
1406                             TALLOC_CTX *ctx,
1407                             uint32_t function,
1408                             uint16_t req_flags,
1409                             const uint8_t *_in_data,
1410                             uint32_t in_len,
1411                             uint8_t **_out_data,
1412                             uint32_t max_out_len,
1413                             uint32_t *out_len);
1414 NTSTATUS smb_vfs_call_get_dos_attributes(struct vfs_handle_struct *handle,
1415                                          struct smb_filename *smb_fname,
1416                                          uint32_t *dosmode);
1417 NTSTATUS smb_vfs_call_fget_dos_attributes(struct vfs_handle_struct *handle,
1418                                           struct files_struct *fsp,
1419                                           uint32_t *dosmode);
1420 NTSTATUS smb_vfs_call_set_dos_attributes(struct vfs_handle_struct *handle,
1421                                          const struct smb_filename *smb_fname,
1422                                          uint32_t dosmode);
1423 NTSTATUS smb_vfs_call_fset_dos_attributes(struct vfs_handle_struct *handle,
1424                                           struct files_struct *fsp,
1425                                           uint32_t dosmode);
1426 struct tevent_req *smb_vfs_call_get_dos_attributes_send(
1427                         TALLOC_CTX *mem_ctx,
1428                         struct tevent_context *ev,
1429                         struct vfs_handle_struct *handle,
1430                         files_struct *dir_fsp,
1431                         struct smb_filename *smb_fname);
1432 NTSTATUS smb_vfs_call_get_dos_attributes_recv(
1433                         struct tevent_req *req,
1434                         struct vfs_aio_state *aio_state,
1435                         uint32_t *dosmode);
1436 struct tevent_req *smb_vfs_call_offload_read_send(
1437         TALLOC_CTX *mem_ctx,
1438         struct tevent_context *ev,
1439         struct vfs_handle_struct *handle,
1440         struct files_struct *fsp,
1441         uint32_t fsctl,
1442         uint32_t ttl,
1443         off_t offset,
1444         size_t to_copy);
1445 NTSTATUS smb_vfs_call_offload_read_recv(struct tevent_req *req,
1446                                         struct vfs_handle_struct *handle,
1447                                         TALLOC_CTX *mem_ctx,
1448                                         DATA_BLOB *token_blob);
1449 struct tevent_req *smb_vfs_call_offload_write_send(struct vfs_handle_struct *handle,
1450                                                    TALLOC_CTX *mem_ctx,
1451                                                    struct tevent_context *ev,
1452                                                    uint32_t fsctl,
1453                                                    DATA_BLOB *token,
1454                                                    off_t transfer_offset,
1455                                                    struct files_struct *dest_fsp,
1456                                                    off_t dest_off,
1457                                                    off_t num);
1458 NTSTATUS smb_vfs_call_offload_write_recv(struct vfs_handle_struct *handle,
1459                                          struct tevent_req *req,
1460                                          off_t *copied);
1461 NTSTATUS smb_vfs_call_get_compression(struct vfs_handle_struct *handle,
1462                                       TALLOC_CTX *mem_ctx,
1463                                       struct files_struct *fsp,
1464                                       struct smb_filename *smb_fname,
1465                                       uint16_t *_compression_fmt);
1466 NTSTATUS smb_vfs_call_set_compression(struct vfs_handle_struct *handle,
1467                                       TALLOC_CTX *mem_ctx,
1468                                       struct files_struct *fsp,
1469                                       uint16_t compression_fmt);
1470 NTSTATUS smb_vfs_call_snap_check_path(vfs_handle_struct *handle,
1471                                       TALLOC_CTX *mem_ctx,
1472                                       const char *service_path,
1473                                       char **base_volume);
1474 NTSTATUS smb_vfs_call_snap_create(struct vfs_handle_struct *handle,
1475                                   TALLOC_CTX *mem_ctx,
1476                                   const char *base_volume,
1477                                   time_t *tstamp,
1478                                   bool rw,
1479                                   char **base_path,
1480                                   char **snap_path);
1481 NTSTATUS smb_vfs_call_snap_delete(struct vfs_handle_struct *handle,
1482                                   TALLOC_CTX *mem_ctx,
1483                                   char *base_path,
1484                                   char *snap_path);
1485 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1486                                   struct files_struct *fsp,
1487                                   uint32_t security_info,
1488                                   TALLOC_CTX *mem_ctx,
1489                                   struct security_descriptor **ppdesc);
1490 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1491                                  const struct smb_filename *smb_fname,
1492                                  uint32_t security_info,
1493                                  TALLOC_CTX *mem_ctx,
1494                                  struct security_descriptor **ppdesc);
1495 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1496                                   struct files_struct *fsp,
1497                                   uint32_t security_info_sent,
1498                                   const struct security_descriptor *psd);
1499 NTSTATUS smb_vfs_call_audit_file(struct vfs_handle_struct *handle,
1500                                  struct smb_filename *file,
1501                                  struct security_acl *sacl,
1502                                  uint32_t access_requested,
1503                                  uint32_t access_denied);
1504 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle,
1505                                 const struct smb_filename *file,
1506                                 mode_t mode);
1507 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1508                                         const struct smb_filename *smb_fname,
1509                                         SMB_ACL_TYPE_T type,
1510                                         TALLOC_CTX *mem_ctx);
1511 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1512                                       struct files_struct *fsp,
1513                                       TALLOC_CTX *mem_ctx);
1514 int smb_vfs_call_sys_acl_blob_get_file(struct vfs_handle_struct *handle,
1515                                        const struct smb_filename *smb_fname,
1516                                        TALLOC_CTX *mem_ctx,
1517                                        char **blob_description,
1518                                        DATA_BLOB *blob);
1519 int smb_vfs_call_sys_acl_blob_get_fd(struct vfs_handle_struct *handle,
1520                                      struct files_struct *fsp,  
1521                                      TALLOC_CTX *mem_ctx,
1522                                      char **blob_description,
1523                                      DATA_BLOB *blob);
1524 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1525                                 const struct smb_filename *smb_fname,
1526                                 SMB_ACL_TYPE_T acltype,
1527                                 SMB_ACL_T theacl);
1528 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1529                                 struct files_struct *fsp, SMB_ACL_T theacl);
1530 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1531                                 const struct smb_filename *smb_fname);
1532 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1533                                 const struct smb_filename *smb_fname,
1534                                 const char *name,
1535                                 void *value,
1536                                 size_t size);
1537 struct tevent_req *smb_vfs_call_getxattrat_send(
1538                         TALLOC_CTX *mem_ctx,
1539                         struct tevent_context *ev,
1540                         struct vfs_handle_struct *handle,
1541                         files_struct *dir_fsp,
1542                         const struct smb_filename *smb_fname,
1543                         const char *xattr_name,
1544                         size_t alloc_hint);
1545 ssize_t smb_vfs_call_getxattrat_recv(struct tevent_req *req,
1546                                      struct vfs_aio_state *aio_state,
1547                                      TALLOC_CTX *mem_ctx,
1548                                      uint8_t **xattr_value);
1549 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1550                                struct files_struct *fsp, const char *name,
1551                                void *value, size_t size);
1552 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1553                                 const struct smb_filename *smb_fname,
1554                                 char *list,
1555                                 size_t size);
1556 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1557                                 struct files_struct *fsp, char *list,
1558                                 size_t size);
1559 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1560                                 const struct smb_filename *smb_fname,
1561                                 const char *name);
1562 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1563                               struct files_struct *fsp, const char *name);
1564 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle,
1565                                 const struct smb_filename *smb_fname,
1566                                 const char *name,
1567                                 const void *value,
1568                                 size_t size,
1569                                 int flags);
1570 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1571                            const char *name, const void *value, size_t size,
1572                            int flags);
1573 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1574                            struct files_struct *fsp, const char *name,
1575                            const void *value, size_t size, int flags);
1576 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1577                             struct files_struct *fsp);
1578 NTSTATUS smb_vfs_call_durable_cookie(struct vfs_handle_struct *handle,
1579                                      struct files_struct *fsp,
1580                                      TALLOC_CTX *mem_ctx,
1581                                      DATA_BLOB *cookie);
1582 NTSTATUS smb_vfs_call_durable_disconnect(struct vfs_handle_struct *handle,
1583                                          struct files_struct *fsp,
1584                                          const DATA_BLOB old_cookie,
1585                                          TALLOC_CTX *mem_ctx,
1586                                          DATA_BLOB *new_cookie);
1587 NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
1588                                         struct smb_request *smb1req,
1589                                         struct smbXsrv_open *op,
1590                                         const DATA_BLOB old_cookie,
1591                                         TALLOC_CTX *mem_ctx,
1592                                         struct files_struct **fsp,
1593                                         DATA_BLOB *new_cookie);
1594 NTSTATUS smb_vfs_call_readdir_attr(struct vfs_handle_struct *handle,
1595                                    const struct smb_filename *fname,
1596                                    TALLOC_CTX *mem_ctx,
1597                                    struct readdir_attr_data **attr_data);
1598
1599 NTSTATUS smb_register_vfs(int version, const char *name,
1600                           const struct vfs_fn_pointers *fns);
1601 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
1602                                    files_struct *fsp, size_t ext_size,
1603                                    void (*destroy_fn)(void *p_data));
1604 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1605 void vfs_remove_all_fsp_extensions(struct files_struct *fsp);
1606 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1607 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1608
1609 void smb_vfs_assert_all_fns(const struct vfs_fn_pointers* fns,
1610                             const char *module);
1611
1612 /*
1613  * Helper functions from source3/modules/vfs_not_implemented.c
1614  */
1615 int vfs_not_implemented_connect(
1616                         vfs_handle_struct *handle,
1617                         const char *service,
1618                         const char *user);
1619 void vfs_not_implemented_disconnect(vfs_handle_struct *handle);
1620 uint64_t vfs_not_implemented_disk_free(vfs_handle_struct *handle,
1621                                 const struct smb_filename *smb_fname,
1622                                 uint64_t *bsize,
1623                                 uint64_t *dfree,
1624                                 uint64_t *dsize);
1625 int vfs_not_implemented_get_quota(vfs_handle_struct *handle,
1626                                 const struct smb_filename *smb_fname,
1627                                 enum SMB_QUOTA_TYPE qtype,
1628                                 unid_t id,
1629                                 SMB_DISK_QUOTA *dq);
1630 int vfs_not_implemented_set_quota(vfs_handle_struct *handle,
1631                                   enum SMB_QUOTA_TYPE qtype,
1632                                   unid_t id, SMB_DISK_QUOTA *dq);
1633 int vfs_not_implemented_get_shadow_copy_data(vfs_handle_struct *handle,
1634                                 files_struct *fsp,
1635                                 struct shadow_copy_data *shadow_copy_data,
1636                                 bool labels);
1637 int vfs_not_implemented_statvfs(struct vfs_handle_struct *handle,
1638                                 const struct smb_filename *smb_fname,
1639                                 struct vfs_statvfs_struct *statbuf);
1640 uint32_t vfs_not_implemented_fs_capabilities(struct vfs_handle_struct *handle,
1641                                 enum timestamp_set_resolution *p_ts_res);
1642 NTSTATUS vfs_not_implemented_get_dfs_referrals(struct vfs_handle_struct *handle,
1643                                                struct dfs_GetDFSReferral *r);
1644 DIR *vfs_not_implemented_opendir(vfs_handle_struct *handle,
1645                         const struct smb_filename *smb_fname,
1646                         const char *mask,
1647                         uint32_t attr);
1648 NTSTATUS vfs_not_implemented_snap_check_path(struct vfs_handle_struct *handle,
1649                                 TALLOC_CTX *mem_ctx,
1650                                 const char *service_path,
1651                                 char **base_volume);
1652 NTSTATUS vfs_not_implemented_snap_create(struct vfs_handle_struct *handle,
1653                                          TALLOC_CTX *mem_ctx,
1654                                          const char *base_volume,
1655                                          time_t *tstamp,
1656                                          bool rw,
1657                                          char **base_path,
1658                                          char **snap_path);
1659 NTSTATUS vfs_not_implemented_snap_delete(struct vfs_handle_struct *handle,
1660                                          TALLOC_CTX *mem_ctx,
1661                                          char *base_path,
1662                                          char *snap_path);
1663 DIR *vfs_not_implemented_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
1664                                    const char *mask, uint32_t attr);
1665 struct dirent *vfs_not_implemented_readdir(vfs_handle_struct *handle,
1666                                            DIR *dirp, SMB_STRUCT_STAT *sbuf);
1667 void vfs_not_implemented_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset);
1668 long vfs_not_implemented_telldir(vfs_handle_struct *handle, DIR *dirp);
1669 void vfs_not_implemented_rewind_dir(vfs_handle_struct *handle, DIR *dirp);
1670 int vfs_not_implemented_mkdirat(vfs_handle_struct *handle,
1671                 struct files_struct *dirfsp,
1672                 const struct smb_filename *smb_fname,
1673                 mode_t mode);
1674 int vfs_not_implemented_closedir(vfs_handle_struct *handle, DIR *dir);
1675 int vfs_not_implemented_open(vfs_handle_struct *handle,
1676                              struct smb_filename *smb_fname,
1677                              files_struct *fsp, int flags, mode_t mode);
1678 NTSTATUS vfs_not_implemented_create_file(struct vfs_handle_struct *handle,
1679                                 struct smb_request *req,
1680                                 uint16_t root_dir_fid,
1681                                 struct smb_filename *smb_fname,
1682                                 uint32_t access_mask,
1683                                 uint32_t share_access,
1684                                 uint32_t create_disposition,
1685                                 uint32_t create_options,
1686                                 uint32_t file_attributes,
1687                                 uint32_t oplock_request,
1688                                 const struct smb2_lease *lease,
1689                                 uint64_t allocation_size,
1690                                 uint32_t private_flags,
1691                                 struct security_descriptor *sd,
1692                                 struct ea_list *ea_list,
1693                                 files_struct **result, int *pinfo,
1694                                 const struct smb2_create_blobs *in_context_blobs,
1695                                 struct smb2_create_blobs *out_context_blobs);
1696 int vfs_not_implemented_close_fn(vfs_handle_struct *handle, files_struct *fsp);
1697 ssize_t vfs_not_implemented_pread(vfs_handle_struct *handle, files_struct *fsp,
1698                                   void *data, size_t n, off_t offset);
1699 struct tevent_req *vfs_not_implemented_pread_send(struct vfs_handle_struct *handle,
1700                                                   TALLOC_CTX *mem_ctx,
1701                                                   struct tevent_context *ev,
1702                                                   struct files_struct *fsp,
1703                                                   void *data, size_t n, off_t offset);
1704 ssize_t vfs_not_implemented_pread_recv(struct tevent_req *req,
1705                                        struct vfs_aio_state *vfs_aio_state);
1706 ssize_t vfs_not_implemented_pwrite(vfs_handle_struct *handle, files_struct *fsp,
1707                                    const void *data, size_t n, off_t offset);
1708 struct tevent_req *vfs_not_implemented_pwrite_send(struct vfs_handle_struct *handle,
1709                                                    TALLOC_CTX *mem_ctx,
1710                                                    struct tevent_context *ev,
1711                                                    struct files_struct *fsp,
1712                                                    const void *data,
1713                                                    size_t n, off_t offset);
1714 ssize_t vfs_not_implemented_pwrite_recv(struct tevent_req *req,
1715                                 struct vfs_aio_state *vfs_aio_state);
1716 off_t vfs_not_implemented_lseek(vfs_handle_struct *handle, files_struct *fsp,
1717                         off_t offset, int whence);
1718 ssize_t vfs_not_implemented_sendfile(vfs_handle_struct *handle, int tofd,
1719                                      files_struct *fromfsp, const DATA_BLOB *hdr,
1720                                      off_t offset, size_t n);
1721 ssize_t vfs_not_implemented_recvfile(vfs_handle_struct *handle, int fromfd,
1722                                      files_struct *tofsp, off_t offset, size_t n);
1723 int vfs_not_implemented_renameat(vfs_handle_struct *handle,
1724                                files_struct *srcfsp,
1725                                const struct smb_filename *smb_fname_src,
1726                                files_struct *dstfsp,
1727                                const struct smb_filename *smb_fname_dst);
1728 struct tevent_req *vfs_not_implemented_fsync_send(struct vfs_handle_struct *handle,
1729                                                   TALLOC_CTX *mem_ctx,
1730                                                   struct tevent_context *ev,
1731                                                   struct files_struct *fsp);
1732 int vfs_not_implemented_fsync_recv(struct tevent_req *req,
1733                                    struct vfs_aio_state *vfs_aio_state);
1734 int vfs_not_implemented_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname);
1735 int vfs_not_implemented_fstat(vfs_handle_struct *handle, files_struct *fsp,
1736                         SMB_STRUCT_STAT *sbuf);
1737 int vfs_not_implemented_lstat(vfs_handle_struct *handle,
1738                               struct smb_filename *smb_fname);
1739 uint64_t vfs_not_implemented_get_alloc_size(struct vfs_handle_struct *handle,
1740                                             struct files_struct *fsp,
1741                                             const SMB_STRUCT_STAT *sbuf);
1742 int vfs_not_implemented_unlinkat(vfs_handle_struct *handle,
1743                                 struct files_struct *dirfsp,
1744                                 const struct smb_filename *smb_fname,
1745                                 int flags);
1746 int vfs_not_implemented_chmod(vfs_handle_struct *handle,
1747                               const struct smb_filename *smb_fname,
1748                               mode_t mode);
1749 int vfs_not_implemented_fchmod(vfs_handle_struct *handle, files_struct *fsp,
1750                                mode_t mode);
1751 int vfs_not_implemented_fchown(vfs_handle_struct *handle, files_struct *fsp,
1752                                uid_t uid, gid_t gid);
1753 int vfs_not_implemented_lchown(vfs_handle_struct *handle,
1754                                const struct smb_filename *smb_fname,
1755                                uid_t uid,
1756                                gid_t gid);
1757 int vfs_not_implemented_chdir(vfs_handle_struct *handle,
1758                               const struct smb_filename *smb_fname);
1759 struct smb_filename *vfs_not_implemented_getwd(vfs_handle_struct *handle,
1760                                                TALLOC_CTX *ctx);
1761 int vfs_not_implemented_ntimes(vfs_handle_struct *handle,
1762                                const struct smb_filename *smb_fname,
1763                                struct smb_file_time *ft);
1764 int vfs_not_implemented_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1765                                   off_t offset);
1766 int vfs_not_implemented_fallocate(vfs_handle_struct *handle, files_struct *fsp,
1767                                   uint32_t mode, off_t offset, off_t len);
1768 bool vfs_not_implemented_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
1769                               off_t offset, off_t count, int type);
1770 int vfs_not_implemented_kernel_flock(struct vfs_handle_struct *handle,
1771                                      struct files_struct *fsp,
1772                                      uint32_t share_mode, uint32_t access_mask);
1773 int vfs_not_implemented_fcntl(struct vfs_handle_struct *handle,
1774                               struct files_struct *fsp, int cmd, va_list cmd_arg);
1775 int vfs_not_implemented_linux_setlease(struct vfs_handle_struct *handle,
1776                                        struct files_struct *fsp, int leasetype);
1777 bool vfs_not_implemented_getlock(vfs_handle_struct *handle, files_struct *fsp,
1778                                  off_t *poffset, off_t *pcount, int *ptype,
1779                                  pid_t *ppid);
1780 int vfs_not_implemented_symlinkat(vfs_handle_struct *handle,
1781                                 const char *link_contents,
1782                                 struct files_struct *dirfsp,
1783                                 const struct smb_filename *new_smb_fname);
1784 int vfs_not_implemented_vfs_readlinkat(vfs_handle_struct *handle,
1785                         struct files_struct *dirfsp,
1786                         const struct smb_filename *smb_fname,
1787                         char *buf,
1788                         size_t bufsiz);
1789 int vfs_not_implemented_linkat(vfs_handle_struct *handle,
1790                         struct files_struct *srcfsp,
1791                         const struct smb_filename *old_smb_fname,
1792                         struct files_struct *dstfsp,
1793                         const struct smb_filename *new_smb_fname,
1794                         int flags);
1795 int vfs_not_implemented_mknodat(vfs_handle_struct *handle,
1796                         struct files_struct *dirfsp,
1797                         const struct smb_filename *smb_fname,
1798                         mode_t mode,
1799                         SMB_DEV_T dev);
1800 struct smb_filename *vfs_not_implemented_realpath(vfs_handle_struct *handle,
1801                                                   TALLOC_CTX *ctx,
1802                                                   const struct smb_filename *smb_fname);
1803 int vfs_not_implemented_chflags(vfs_handle_struct *handle,
1804                                 const struct smb_filename *smb_fname,
1805                                 uint flags);
1806 struct file_id vfs_not_implemented_file_id_create(vfs_handle_struct *handle,
1807                                                   const SMB_STRUCT_STAT *sbuf);
1808 uint64_t vfs_not_implemented_fs_file_id(vfs_handle_struct *handle,
1809                                         const SMB_STRUCT_STAT *sbuf);
1810 struct tevent_req *vfs_not_implemented_offload_read_send(
1811                         TALLOC_CTX *mem_ctx,
1812                         struct tevent_context *ev,
1813                         struct vfs_handle_struct *handle,
1814                         struct files_struct *fsp,
1815                         uint32_t fsctl,
1816                         uint32_t ttl,
1817                         off_t offset,
1818                         size_t to_copy);
1819 NTSTATUS vfs_not_implemented_offload_read_recv(struct tevent_req *req,
1820                                        struct vfs_handle_struct *handle,
1821                                        TALLOC_CTX *mem_ctx,
1822                                        DATA_BLOB *_token_blob);
1823 struct tevent_req *vfs_not_implemented_offload_write_send(
1824                         struct vfs_handle_struct *handle,
1825                         TALLOC_CTX *mem_ctx,
1826                         struct tevent_context *ev,
1827                         uint32_t fsctl,
1828                         DATA_BLOB *token,
1829                         off_t transfer_offset,
1830                         struct files_struct *dest_fsp,
1831                         off_t dest_off,
1832                         off_t num);
1833 NTSTATUS vfs_not_implemented_offload_write_recv(struct vfs_handle_struct *handle,
1834                                                 struct tevent_req *req,
1835                                                 off_t *copied);
1836 NTSTATUS vfs_not_implemented_get_compression(struct vfs_handle_struct *handle,
1837                                              TALLOC_CTX *mem_ctx,
1838                                              struct files_struct *fsp,
1839                                              struct smb_filename *smb_fname,
1840                                              uint16_t *_compression_fmt);
1841 NTSTATUS vfs_not_implemented_set_compression(struct vfs_handle_struct *handle,
1842                                              TALLOC_CTX *mem_ctx,
1843                                              struct files_struct *fsp,
1844                                              uint16_t compression_fmt);
1845 NTSTATUS vfs_not_implemented_streaminfo(struct vfs_handle_struct *handle,
1846                                         struct files_struct *fsp,
1847                                         const struct smb_filename *smb_fname,
1848                                         TALLOC_CTX *mem_ctx,
1849                                         unsigned int *num_streams,
1850                                         struct stream_struct **streams);
1851 int vfs_not_implemented_get_real_filename(struct vfs_handle_struct *handle,
1852                                           const char *path,
1853                                           const char *name,
1854                                           TALLOC_CTX *mem_ctx,
1855                                           char **found_name);
1856 const char *vfs_not_implemented_connectpath(struct vfs_handle_struct *handle,
1857                                             const struct smb_filename *smb_fname);
1858 NTSTATUS vfs_not_implemented_brl_lock_windows(struct vfs_handle_struct *handle,
1859                                               struct byte_range_lock *br_lck,
1860                                               struct lock_struct *plock);
1861 bool vfs_not_implemented_brl_unlock_windows(struct vfs_handle_struct *handle,
1862                                             struct byte_range_lock *br_lck,
1863                                             const struct lock_struct *plock);
1864 bool vfs_not_implemented_strict_lock_check(struct vfs_handle_struct *handle,
1865                                            struct files_struct *fsp,
1866                                            struct lock_struct *plock);
1867 NTSTATUS vfs_not_implemented_translate_name(struct vfs_handle_struct *handle,
1868                                             const char *mapped_name,
1869                                             enum vfs_translate_direction direction,
1870                                             TALLOC_CTX *mem_ctx, char **pmapped_name);
1871 NTSTATUS vfs_not_implemented_fsctl(struct vfs_handle_struct *handle,
1872                                    struct files_struct *fsp,
1873                                    TALLOC_CTX *ctx,
1874                                    uint32_t function,
1875                                    uint16_t req_flags,  /* Needed for UNICODE ... */
1876                                    const uint8_t *_in_data,
1877                                    uint32_t in_len,
1878                                    uint8_t **_out_data,
1879                                    uint32_t max_out_len, uint32_t *out_len);
1880 NTSTATUS vfs_not_implemented_readdir_attr(struct vfs_handle_struct *handle,
1881                                           const struct smb_filename *fname,
1882                                           TALLOC_CTX *mem_ctx,
1883                                           struct readdir_attr_data **pattr_data);
1884 NTSTATUS vfs_not_implemented_get_dos_attributes(struct vfs_handle_struct *handle,
1885                                                 struct smb_filename *smb_fname,
1886                                                 uint32_t *dosmode);
1887 struct tevent_req *vfs_not_implemented_get_dos_attributes_send(
1888                         TALLOC_CTX *mem_ctx,
1889                         struct tevent_context *ev,
1890                         struct vfs_handle_struct *handle,
1891                         files_struct *dir_fsp,
1892                         struct smb_filename *smb_fname);
1893 NTSTATUS vfs_not_implemented_get_dos_attributes_recv(
1894                         struct tevent_req *req,
1895                         struct vfs_aio_state *aio_state,
1896                         uint32_t *dosmode);
1897 NTSTATUS vfs_not_implemented_fget_dos_attributes(struct vfs_handle_struct *handle,
1898                                                  struct files_struct *fsp,
1899                                                  uint32_t *dosmode);
1900 NTSTATUS vfs_not_implemented_set_dos_attributes(struct vfs_handle_struct *handle,
1901                                                 const struct smb_filename *smb_fname,
1902                                                 uint32_t dosmode);
1903 NTSTATUS vfs_not_implemented_fset_dos_attributes(struct vfs_handle_struct *handle,
1904                                                  struct files_struct *fsp,
1905                                                  uint32_t dosmode);
1906 NTSTATUS vfs_not_implemented_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1907                                          uint32_t security_info,
1908                                          TALLOC_CTX *mem_ctx,
1909                                          struct security_descriptor **ppdesc);
1910 NTSTATUS vfs_not_implemented_get_nt_acl(vfs_handle_struct *handle,
1911                                         const struct smb_filename *smb_fname,
1912                                         uint32_t security_info,
1913                                         TALLOC_CTX *mem_ctx,
1914                                         struct security_descriptor **ppdesc);
1915 NTSTATUS vfs_not_implemented_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1916                                          uint32_t security_info_sent,
1917                                          const struct security_descriptor *psd);
1918 SMB_ACL_T vfs_not_implemented_sys_acl_get_file(vfs_handle_struct *handle,
1919                                                const struct smb_filename *smb_fname,
1920                                                SMB_ACL_TYPE_T type,
1921                                                TALLOC_CTX *mem_ctx);
1922 SMB_ACL_T vfs_not_implemented_sys_acl_get_fd(vfs_handle_struct *handle,
1923                                              files_struct *fsp, TALLOC_CTX *mem_ctx);
1924 int vfs_not_implemented_sys_acl_blob_get_file(vfs_handle_struct *handle,
1925                                 const struct smb_filename *smb_fname,
1926                                 TALLOC_CTX *mem_ctx,
1927                                 char **blob_description,
1928                                 DATA_BLOB *blob);
1929 int vfs_not_implemented_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1930                                 files_struct *fsp, TALLOC_CTX *mem_ctx,
1931                                 char **blob_description, DATA_BLOB *blob);
1932 int vfs_not_implemented_sys_acl_set_file(vfs_handle_struct *handle,
1933                                 const struct smb_filename *smb_fname,
1934                                 SMB_ACL_TYPE_T acltype,
1935                                 SMB_ACL_T theacl);
1936 int vfs_not_implemented_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1937                                        SMB_ACL_T theacl);
1938 int vfs_not_implemented_sys_acl_delete_def_file(vfs_handle_struct *handle,
1939                                         const struct smb_filename *smb_fname);
1940 ssize_t vfs_not_implemented_getxattr(vfs_handle_struct *handle,
1941                                 const struct smb_filename *smb_fname,
1942                                 const char *name,
1943                                 void *value,
1944                                 size_t size);
1945 struct tevent_req *vfs_not_implemented_getxattrat_send(
1946                         TALLOC_CTX *mem_ctx,
1947                         struct tevent_context *ev,
1948                         struct vfs_handle_struct *handle,
1949                         files_struct *dir_fsp,
1950                         const struct smb_filename *smb_fname,
1951                         const char *xattr_name,
1952                         size_t alloc_hint);
1953 ssize_t vfs_not_implemented_getxattrat_recv(struct tevent_req *req,
1954                                     struct vfs_aio_state *aio_state,
1955                                     TALLOC_CTX *mem_ctx,
1956                                     uint8_t **xattr_value);
1957 ssize_t vfs_not_implemented_fgetxattr(vfs_handle_struct *handle,
1958                               struct files_struct *fsp, const char *name,
1959                               void *value, size_t size);
1960 ssize_t vfs_not_implemented_listxattr(vfs_handle_struct *handle,
1961                                       const struct smb_filename *smb_fname,
1962                                       char *list,
1963                                       size_t size);
1964 ssize_t vfs_not_implemented_flistxattr(vfs_handle_struct *handle,
1965                                        struct files_struct *fsp, char *list,
1966                                        size_t size);
1967 int vfs_not_implemented_removexattr(vfs_handle_struct *handle,
1968                                     const struct smb_filename *smb_fname,
1969                                     const char *name);
1970 int vfs_not_implemented_fremovexattr(vfs_handle_struct *handle,
1971                                      struct files_struct *fsp, const char *name);
1972 int vfs_not_implemented_setxattr(vfs_handle_struct *handle,
1973                                  const struct smb_filename *smb_fname,
1974                                  const char *name,
1975                                  const void *value,
1976                                  size_t size,
1977                                  int flags);
1978 int vfs_not_implemented_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1979                                   const char *name, const void *value, size_t size,
1980                                   int flags);
1981 bool vfs_not_implemented_aio_force(struct vfs_handle_struct *handle,
1982                                    struct files_struct *fsp);
1983 NTSTATUS vfs_not_implemented_audit_file(struct vfs_handle_struct *handle,
1984                                         struct smb_filename *file,
1985                                         struct security_acl *sacl,
1986                                         uint32_t access_requested,
1987                                         uint32_t access_denied);
1988 NTSTATUS vfs_not_implemented_durable_cookie(struct vfs_handle_struct *handle,
1989                                             struct files_struct *fsp,
1990                                             TALLOC_CTX *mem_ctx,
1991                                             DATA_BLOB *cookie);
1992 NTSTATUS vfs_not_implemented_durable_disconnect(struct vfs_handle_struct *handle,
1993                                                 struct files_struct *fsp,
1994                                                 const DATA_BLOB old_cookie,
1995                                                 TALLOC_CTX *mem_ctx,
1996                                                 DATA_BLOB *new_cookie);
1997 NTSTATUS vfs_not_implemented_durable_reconnect(struct vfs_handle_struct *handle,
1998                                                struct smb_request *smb1req,
1999                                                struct smbXsrv_open *op,
2000                                                const DATA_BLOB old_cookie,
2001                                                TALLOC_CTX *mem_ctx,
2002                                                struct files_struct **fsp,
2003                                                DATA_BLOB *new_cookie);
2004 #endif /* _VFS_H */