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 /* Version 42 - SMB_VFS_NTIMES() receives null times based on UTIMES_OMIT */
291 /* Version 42 - Add SMB_VFS_CREATE_DFS_PATHAT() */
292 /* Version 42 - Add SMB_VFS_READ_DFS_PATHAT() */
293 
294 #define SMB_VFS_INTERFACE_VERSION 42
295 
296 /*
297     All intercepted VFS operations must be declared as static functions inside module source
298     in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
299     example VFS modules for more details.
300 */
301 
302 /* VFS operations structure */
303 
304 struct vfs_handle_struct;
305 struct connection_struct;
306 struct files_struct;
307 struct security_descriptor;
308 struct vfs_statvfs_struct;
309 struct smb_request;
310 struct ea_list;
311 struct smb_file_time;
312 struct smb_filename;
313 struct dfs_GetDFSReferral;
314 
315 typedef union unid_t {
316 	uid_t uid;
317 	gid_t gid;
318 } unid_t;
319 
320 struct fd_handle {
321 	size_t ref_count;
322 	int fd;
323 	uint64_t position_information;
324 	off_t pos;
325 	uint32_t private_options;	/* NT Create options, but we only look at
326 				 * NTCREATEX_OPTIONS_PRIVATE_DENY_DOS and
327 				 * NTCREATEX_OPTIONS_PRIVATE_DENY_FCB and
328 				 * NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE
329 				 * for print files *only*, where
330 				 * DELETE_ON_CLOSE is not stored in the share
331 				 * mode database.
332 				 */
333 	uint64_t gen_id;
334 };
335 
336 struct fsp_lease {
337 	size_t ref_count;
338 	struct smbd_server_connection *sconn;
339 	struct tevent_timer *timeout;
340 	struct smb2_lease lease;
341 };
342 
343 typedef struct files_struct {
344 	struct files_struct *next, *prev;
345 	uint64_t fnum;
346 	struct smbXsrv_open *op;
347 	struct connection_struct *conn;
348 	struct fd_handle *fh;
349 	unsigned int num_smb_operations;
350 	struct file_id file_id;
351 	uint64_t initial_allocation_size; /* Faked up initial allocation on disk. */
352 	uint16_t file_pid;
353 	uint64_t vuid; /* SMB2 compat */
354 	struct timeval open_time;
355 	uint32_t access_mask;		/* NTCreateX access bits (FILE_READ_DATA etc.) */
356 	bool kernel_share_modes_taken;
357 
358 	bool update_write_time_triggered;
359 	struct tevent_timer *update_write_time_event;
360 	bool update_write_time_on_close;
361 	struct timespec close_write_time;
362 	bool write_time_forced;
363 
364 	int oplock_type;
365 
366 	/*
367 	 * Cache of our lease_type, stored as "current_state" in
368 	 * leases.tdb
369 	 */
370 	int leases_db_seqnum;
371 	uint32_t lease_type;
372 
373 	struct fsp_lease *lease;
374 	int sent_oplock_break;
375 	struct tevent_timer *oplock_timeout;
376 	struct lock_struct last_lock_failure;
377 	int current_lock_count; /* Count the number of outstanding locks and pending locks. */
378 
379 	bool can_lock;
380 	bool can_read;
381 	bool can_write;
382 	bool modified;
383 	bool is_directory;
384 	bool aio_write_behind;
385 	bool initial_delete_on_close; /* Only set at NTCreateX if file was created. */
386 	bool delete_on_close;
387 	uint64_t posix_flags;
388 	bool is_sparse;
389 	bool backup_intent; /* Handle was successfully opened with backup intent
390 				and opener has privilege to do so. */
391 	bool use_ofd_locks; /* Are we using open file description locks ? */
392 	struct smb_filename *fsp_name;
393 	uint32_t name_hash;		/* Jenkins hash of full pathname. */
394 	uint64_t mid;			/* Mid of the operation that created us. */
395 
396 	struct vfs_fsp_data *vfs_extension;
397 	struct fake_file_handle *fake_file_handle;
398 
399 	struct notify_change_buf *notify;
400 
401 	struct files_struct *base_fsp; /* placeholder for delete on close */
402 
403 	/*
404 	 * Cache of share_mode_data->flags
405 	 */
406 	int share_mode_flags_seqnum;
407 	uint16_t share_mode_flags;
408 
409 	/*
410 	 * Read-only cached brlock record, thrown away when the
411 	 * brlock.tdb seqnum changes. This avoids fetching data from
412 	 * the brlock.tdb on every read/write call.
413 	 */
414 	int brlock_seqnum;
415 	struct byte_range_lock *brlock_rec;
416 
417 	struct dptr_struct *dptr;
418 
419 	/* if not NULL, means this is a print file */
420 	struct print_file_data *print_file;
421 
422 	/*
423 	 * Optimize the aio_requests array for high performance: Never
424 	 * shrink it, maintain num_aio_requests separately
425 	 */
426 	unsigned num_aio_requests;
427 	struct tevent_req **aio_requests;
428 	bool closing;
429 
430 	/*
431 	 * Requests waiting for smb1 byte range locks. They are
432 	 * generated by smbd_smb1_do_locks_send and are required here,
433 	 * because lock cancel operations index through reply_lockingX
434 	 * not based on mid but on the lock type and range.
435 	 */
436 	struct tevent_req **blocked_smb1_lock_reqs;
437 
438 	/*
439 	 * SMB1 remembers lock failures and delays repeated blocking
440 	 * lock attempts on the same offset.
441 	 */
442 	bool lock_failure_seen;
443 	uint64_t lock_failure_offset;
444 
445 	/*
446 	 * If a close request comes in while we still have aio_requests
447 	 * around, we need to hold back the close. When all aio_requests are
448 	 * done, the aio completion routines need tevent_wait_done() on
449 	 * this. A bit ugly, but before we have close_file() fully async
450 	 * possibly the simplest approach. Thanks, Jeremy for the idea.
451 	 */
452 	struct tevent_req *deferred_close;
453 } files_struct;
454 
455 #define FSP_POSIX_FLAGS_OPEN		0x01
456 #define FSP_POSIX_FLAGS_RENAME		0x02
457 #define FSP_POSIX_FLAGS_PATHNAMES	0x04
458 
459 #define FSP_POSIX_FLAGS_ALL			\
460 	(FSP_POSIX_FLAGS_OPEN |			\
461 	 FSP_POSIX_FLAGS_PATHNAMES |		\
462 	 FSP_POSIX_FLAGS_RENAME)
463 
464 struct vuid_cache_entry {
465 	struct auth_session_info *session_info;
466 	uint64_t vuid; /* SMB2 compat */
467 	bool read_only;
468 	uint32_t share_access;
469 };
470 
471 struct vuid_cache {
472 	unsigned int next_entry;
473 	struct vuid_cache_entry array[VUID_CACHE_SIZE];
474 };
475 
476 typedef struct {
477 	char *name;
478 	bool is_wild;
479 } name_compare_entry;
480 
481 struct share_params {
482 	int service;
483 };
484 
485 typedef struct connection_struct {
486 	struct connection_struct *next, *prev;
487 	struct smbd_server_connection *sconn; /* can be NULL */
488 	struct smbXsrv_tcon *tcon; /* can be NULL */
489 	uint32_t cnum; /* an index passed over the wire */
490 	struct share_params *params;
491 	bool force_user;
492 	struct vuid_cache *vuid_cache;
493 	bool printer;
494 	bool ipc;
495 	bool read_only; /* Attributes for the current user of the share. */
496 	uint32_t share_access;
497 	/* Does this filesystem honor
498 	   sub second timestamps on files
499 	   and directories when setting time ? */
500 	enum timestamp_set_resolution ts_res;
501 	char *connectpath;
502 	char *origpath;
503 	struct files_struct *cwd_fsp; /* Working directory. */
504 	bool tcon_done;
505 
506 	struct vfs_handle_struct *vfs_handles;		/* for the new plugins */
507 
508 	/*
509 	 * This represents the user information on this connection. Depending
510 	 * on the vuid using this tid, this might change per SMB request.
511 	 */
512 	struct auth_session_info *session_info;
513 
514 	/*
515 	 * If the "force group" parameter is set, this is the primary gid that
516 	 * may be used in the users token, depending on the vuid using this tid.
517 	 */
518 	gid_t force_group_gid;
519 
520 	uint64_t vuid; /* vuid of user who *opened* this connection, or UID_FIELD_INVALID */
521 
522 	time_t lastused;
523 	time_t lastused_count;
524 	int num_files_open;
525 	unsigned int num_smb_operations; /* Count of smb operations on this tree. */
526 	int encrypt_level;
527 	bool encrypted_tid;
528 
529 	/* Semantics requested by the client or forced by the server config. */
530 	bool case_sensitive;
531 	bool case_preserve;
532 	bool short_case_preserve;
533 
534 	/* Semantics provided by the underlying filesystem. */
535 	int fs_capabilities;
536 	/* Device number of the directory of the share mount.
537 	   Used to ensure unique FileIndex returns. */
538 	SMB_DEV_T base_share_dev;
539 
540 	name_compare_entry *hide_list; /* Per-share list of files to return as hidden. */
541 	name_compare_entry *veto_list; /* Per-share list of files to veto (never show). */
542 	name_compare_entry *veto_oplock_list; /* Per-share list of files to refuse oplocks on. */
543 	name_compare_entry *aio_write_behind_list; /* Per-share list of files to use aio write behind on. */
544 	struct trans_state *pending_trans;
545 
546 	struct rpc_pipe_client *spoolss_pipe;
547 
548 } connection_struct;
549 
550 struct smbd_smb2_request;
551 struct privilege_paths;
552 struct referral;
553 
554 struct smb_request {
555 	uint8_t cmd;
556 	uint16_t flags2;
557 	uint16_t smbpid;
558 	uint64_t mid; /* For compatibility with SMB2. */
559 	uint32_t seqnum;
560 	uint64_t vuid; /* For compatibility with SMB2. */
561 	uint32_t tid;
562 	uint8_t  wct;
563 	const uint16_t *vwv;
564 	uint16_t buflen;
565 	const uint8_t *buf;
566 	const uint8_t *inbuf;
567 
568 	/*
569 	 * Async handling in the main smb processing loop is directed by
570 	 * outbuf: reply_xxx routines indicate sync behaviour by putting their
571 	 * reply into "outbuf". If they leave it as NULL, they take care of it
572 	 * themselves, possibly later.
573 	 *
574 	 * If async handling is wanted, the reply_xxx routine must make sure
575 	 * that it talloc_move()s the smb_req somewhere else.
576 	 */
577 	uint8_t *outbuf;
578 
579 	size_t unread_bytes;
580 	bool encrypted;
581 	connection_struct *conn;
582 	struct smbd_server_connection *sconn;
583 	struct smbXsrv_connection *xconn;
584 
585 	/*
586 	 * Pointer to session, can be NULL,
587 	 * eg during negprot and session setup.
588 	 */
589 	struct smbXsrv_session *session;
590 
591 	struct smb_perfcount_data pcd;
592 
593 	/*
594 	 * Chained request handling
595 	 */
596 	struct files_struct *chain_fsp;
597 
598 	/*
599 	 * state information for async smb handling
600 	 */
601 	void *async_priv;
602 
603 	/*
604 	 * Back pointer to smb2 request.
605 	 */
606 	struct smbd_smb2_request *smb2req;
607 
608 	/*
609 	 * Pathnames used if request done
610 	 * under privilege.
611 	 */
612 	struct privilege_paths *priv_paths;
613 
614 	/*
615 	 * Request list for chained requests, we're part of it.
616 	 */
617 	struct smb_request **chain;
618 
619 	struct timeval request_time;
620 
621 	bool posix_pathnames;
622 };
623 
624 /*
625  * Info about an alternate data stream
626  */
627 
628 struct stream_struct {
629 	off_t size;
630 	off_t alloc_size;
631 	char *name;
632 };
633 
634 /* time info */
635 struct smb_file_time {
636 	struct timespec mtime;
637 	struct timespec atime;
638 	struct timespec ctime;
639 	struct timespec create_time;
640 };
641 
642 /*
643  * smb_filename
644  */
645 struct smb_filename {
646 	char *base_name;
647 	char *stream_name;
648 	char *original_lcomp;
649 	uint32_t flags;
650 	SMB_STRUCT_STAT st;
651 };
652 
653 /*
654  * smb_filename flags. Define in terms of the FSP_POSIX_FLAGS_XX
655  * to keep the numeric values consistent.
656  */
657 
658 #define SMB_FILENAME_POSIX_PATH		FSP_POSIX_FLAGS_PATHNAMES
659 
660 #define VFS_FIND(__fn__) while (handle->fns->__fn__##_fn==NULL) { \
661 				handle = handle->next; \
662 			 }
663 
664 enum vfs_translate_direction {
665 	vfs_translate_to_unix = 0,
666 	vfs_translate_to_windows
667 };
668 
669 enum vfs_fallocate_flags {
670 	VFS_FALLOCATE_FL_KEEP_SIZE		= 0x0001,
671 	VFS_FALLOCATE_FL_PUNCH_HOLE		= 0x0002,
672 };
673 
674 struct vfs_aio_state {
675 	int error;
676 	uint64_t duration;
677 };
678 
679 /*
680     Available VFS operations. These values must be in sync with vfs_ops struct
681     (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
682     In particular, if new operations are added to vfs_ops, appropriate constants
683     should be added to vfs_op_type so that order of them kept same as in vfs_ops.
684 */
685 struct shadow_copy_data;
686 
687 struct vfs_fn_pointers {
688 	/* Disk operations */
689 
690 	int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
691 	void (*disconnect_fn)(struct vfs_handle_struct *handle);
692 	uint64_t (*disk_free_fn)(struct vfs_handle_struct *handle,
693 				const struct smb_filename *smb_fname,
694 				uint64_t *bsize,
695 				uint64_t *dfree,
696 				uint64_t *dsize);
697 	int (*get_quota_fn)(struct vfs_handle_struct *handle,
698 				const struct smb_filename *smb_fname,
699 				enum SMB_QUOTA_TYPE qtype,
700 				unid_t id,
701 				SMB_DISK_QUOTA *qt);
702 	int (*set_quota_fn)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
703 	int (*get_shadow_copy_data_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, struct shadow_copy_data *shadow_copy_data, bool labels);
704 	int (*statvfs_fn)(struct vfs_handle_struct *handle,
705 				const struct smb_filename *smb_fname,
706 				struct vfs_statvfs_struct *statbuf);
707 	uint32_t (*fs_capabilities_fn)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
708 
709 	/*
710 	 * Note: that "struct dfs_GetDFSReferral *r"
711 	 * needs to be a valid TALLOC_CTX
712 	 */
713 	NTSTATUS (*get_dfs_referrals_fn)(struct vfs_handle_struct *handle,
714 					 struct dfs_GetDFSReferral *r);
715 	NTSTATUS (*create_dfs_pathat_fn)(struct vfs_handle_struct *handle,
716 				struct files_struct *dirfsp,
717 				const struct smb_filename *smb_fname,
718 				const struct referral *reflist,
719 				size_t referral_count);
720 	NTSTATUS (*read_dfs_pathat_fn)(struct vfs_handle_struct *handle,
721 				TALLOC_CTX *mem_ctx,
722 				struct files_struct *dirfsp,
723 				const struct smb_filename *smb_fname,
724 				struct referral **ppreflist,
725 				size_t *preferral_count);
726 
727 	/* Directory operations */
728 
729 	DIR *(*opendir_fn)(struct vfs_handle_struct *handle,
730 					const struct smb_filename *smb_fname,
731 					const char *mask,
732 					uint32_t attributes);
733 	DIR *(*fdopendir_fn)(struct vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32_t attributes);
734 	struct dirent *(*readdir_fn)(struct vfs_handle_struct *handle,
735 					 DIR *dirp,
736 					 SMB_STRUCT_STAT *sbuf);
737 	void (*seekdir_fn)(struct vfs_handle_struct *handle, DIR *dirp, long offset);
738 	long (*telldir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
739 	void (*rewind_dir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
740 	int (*mkdirat_fn)(struct vfs_handle_struct *handle,
741 			struct files_struct *dirfsp,
742 			const struct smb_filename *smb_fname,
743 			mode_t mode);
744 	int (*closedir_fn)(struct vfs_handle_struct *handle, DIR *dir);
745 
746 	/* File operations */
747 
748 	int (*open_fn)(struct vfs_handle_struct *handle,
749 		       struct smb_filename *smb_fname, files_struct *fsp,
750 		       int flags, mode_t mode);
751 	NTSTATUS (*create_file_fn)(struct vfs_handle_struct *handle,
752 				   struct smb_request *req,
753 				   uint16_t root_dir_fid,
754 				   struct smb_filename *smb_fname,
755 				   uint32_t access_mask,
756 				   uint32_t share_access,
757 				   uint32_t create_disposition,
758 				   uint32_t create_options,
759 				   uint32_t file_attributes,
760 				   uint32_t oplock_request,
761 				   const struct smb2_lease *lease,
762 				   uint64_t allocation_size,
763 				   uint32_t private_flags,
764 				   struct security_descriptor *sd,
765 				   struct ea_list *ea_list,
766 				   files_struct **result,
767 				   int *pinfo,
768 				   const struct smb2_create_blobs *in_context_blobs,
769 				   struct smb2_create_blobs *out_context_blobs);
770 	int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
771 	ssize_t (*pread_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, off_t offset);
772 	struct tevent_req *(*pread_send_fn)(struct vfs_handle_struct *handle,
773 					    TALLOC_CTX *mem_ctx,
774 					    struct tevent_context *ev,
775 					    struct files_struct *fsp,
776 					    void *data,
777 					    size_t n, off_t offset);
778 	ssize_t (*pread_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
779 	ssize_t (*pwrite_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, off_t offset);
780 	struct tevent_req *(*pwrite_send_fn)(struct vfs_handle_struct *handle,
781 					     TALLOC_CTX *mem_ctx,
782 					     struct tevent_context *ev,
783 					     struct files_struct *fsp,
784 					     const void *data,
785 					     size_t n, off_t offset);
786 	ssize_t (*pwrite_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
787 	off_t (*lseek_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset, int whence);
788 	ssize_t (*sendfile_fn)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, off_t offset, size_t count);
789 	ssize_t (*recvfile_fn)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, off_t offset, size_t count);
790 	int (*renameat_fn)(struct vfs_handle_struct *handle,
791 			 struct files_struct *srcdir_fsp,
792 			 const struct smb_filename *smb_fname_src,
793 			 struct files_struct *dstdir_fsp,
794 			 const struct smb_filename *smb_fname_dst);
795 	struct tevent_req *(*fsync_send_fn)(struct vfs_handle_struct *handle,
796 					    TALLOC_CTX *mem_ctx,
797 					    struct tevent_context *ev,
798 					    struct files_struct *fsp);
799 	int (*fsync_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
800 	int (*stat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
801 	int (*fstat_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
802 	int (*lstat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
803 	uint64_t (*get_alloc_size_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
804 	int (*unlinkat_fn)(struct vfs_handle_struct *handle,
805 			struct files_struct *srcdir_fsp,
806 			const struct smb_filename *smb_fname,
807 			int flags);
808 	int (*chmod_fn)(struct vfs_handle_struct *handle,
809 			const struct smb_filename *smb_fname,
810 			mode_t mode);
811 	int (*fchmod_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
812 	int (*fchown_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
813 	int (*lchown_fn)(struct vfs_handle_struct *handle,
814 			const struct smb_filename *smb_fname,
815 			uid_t uid,
816 			gid_t gid);
817 	int (*chdir_fn)(struct vfs_handle_struct *handle,
818 			 const struct smb_filename *smb_fname);
819 	struct smb_filename *(*getwd_fn)(struct vfs_handle_struct *handle,
820 				TALLOC_CTX *mem_ctx);
821 	int (*ntimes_fn)(struct vfs_handle_struct *handle,
822 			 const struct smb_filename *smb_fname,
823 			 struct smb_file_time *ft);
824 	int (*ftruncate_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset);
825 	int (*fallocate_fn)(struct vfs_handle_struct *handle,
826 			    struct files_struct *fsp,
827 			    uint32_t mode,
828 			    off_t offset,
829 			    off_t len);
830 	bool (*lock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, off_t offset, off_t count, int type);
831 	int (*kernel_flock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
832 			       uint32_t share_access, uint32_t access_mask);
833 	int (*fcntl_fn)(struct vfs_handle_struct *handle,
834 			struct files_struct *fsp, int cmd, va_list cmd_arg);
835 	int (*linux_setlease_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
836 	bool (*getlock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid);
837 	int (*symlinkat_fn)(struct vfs_handle_struct *handle,
838 				const char *link_contents,
839 				struct files_struct *dirfsp,
840 				const struct smb_filename *new_smb_fname);
841 	int (*readlinkat_fn)(struct vfs_handle_struct *handle,
842 				struct files_struct *dirfsp,
843 				const struct smb_filename *smb_fname,
844 				char *buf,
845 				size_t bufsiz);
846 	int (*linkat_fn)(struct vfs_handle_struct *handle,
847 				struct files_struct *srcfsp,
848 				const struct smb_filename *old_smb_fname,
849 				struct files_struct *dstfsp,
850 				const struct smb_filename *new_smb_fname,
851 				int flags);
852 	int (*mknodat_fn)(struct vfs_handle_struct *handle,
853 				struct files_struct *dirfsp,
854 				const struct smb_filename *smb_fname,
855 				mode_t mode,
856 				SMB_DEV_T dev);
857 	struct smb_filename *(*realpath_fn)(struct vfs_handle_struct *handle,
858 				TALLOC_CTX *ctx,
859 				const struct smb_filename *smb_fname);
860 	int (*chflags_fn)(struct vfs_handle_struct *handle,
861 				const struct smb_filename *smb_fname,
862 				unsigned int flags);
863 	struct file_id (*file_id_create_fn)(struct vfs_handle_struct *handle,
864 					    const SMB_STRUCT_STAT *sbuf);
865 	uint64_t (*fs_file_id_fn)(struct vfs_handle_struct *handle,
866 				  const SMB_STRUCT_STAT *sbuf);
867 	struct tevent_req *(*offload_read_send_fn)(TALLOC_CTX *mem_ctx,
868 						   struct tevent_context *ev,
869 						   struct vfs_handle_struct *handle,
870 						   struct files_struct *fsp,
871 						   uint32_t fsctl,
872 						   uint32_t ttl,
873 						   off_t offset,
874 						   size_t to_copy);
875 	NTSTATUS (*offload_read_recv_fn)(struct tevent_req *req,
876 					 struct vfs_handle_struct *handle,
877 					 TALLOC_CTX *mem_ctx,
878 					 DATA_BLOB *token_blob);
879 	struct tevent_req *(*offload_write_send_fn)(struct vfs_handle_struct *handle,
880 						    TALLOC_CTX *mem_ctx,
881 						    struct tevent_context *ev,
882 						    uint32_t fsctl,
883 						    DATA_BLOB *token,
884 						    off_t transfer_offset,
885 						    struct files_struct *dest_fsp,
886 						    off_t dest_off,
887 						    off_t to_copy);
888 	NTSTATUS (*offload_write_recv_fn)(struct vfs_handle_struct *handle,
889 					  struct tevent_req *req,
890 					  off_t *copied);
891 	NTSTATUS (*get_compression_fn)(struct vfs_handle_struct *handle,
892 				       TALLOC_CTX *mem_ctx,
893 				       struct files_struct *fsp,
894 				       struct smb_filename *smb_fname,
895 				       uint16_t *_compression_fmt);
896 	NTSTATUS (*set_compression_fn)(struct vfs_handle_struct *handle,
897 				       TALLOC_CTX *mem_ctx,
898 				       struct files_struct *fsp,
899 				       uint16_t compression_fmt);
900 	NTSTATUS (*snap_check_path_fn)(struct vfs_handle_struct *handle,
901 				       TALLOC_CTX *mem_ctx,
902 				       const char *service_path,
903 				       char **base_volume);
904 	NTSTATUS (*snap_create_fn)(struct vfs_handle_struct *handle,
905 				   TALLOC_CTX *mem_ctx,
906 				   const char *base_volume,
907 				   time_t *tstamp,
908 				   bool rw,
909 				   char **base_path,
910 				   char **snap_path);
911 	NTSTATUS (*snap_delete_fn)(struct vfs_handle_struct *handle,
912 				   TALLOC_CTX *mem_ctx,
913 				   char *base_path,
914 				   char *snap_path);
915 
916 	NTSTATUS (*streaminfo_fn)(struct vfs_handle_struct *handle,
917 				  struct files_struct *fsp,
918 				  const struct smb_filename *smb_fname,
919 				  TALLOC_CTX *mem_ctx,
920 				  unsigned int *num_streams,
921 				  struct stream_struct **streams);
922 
923 	int (*get_real_filename_fn)(struct vfs_handle_struct *handle,
924 				    const char *path,
925 				    const char *name,
926 				    TALLOC_CTX *mem_ctx,
927 				    char **found_name);
928 
929 	const char *(*connectpath_fn)(struct vfs_handle_struct *handle,
930 				      const struct smb_filename *smb_fname);
931 
932 	NTSTATUS (*brl_lock_windows_fn)(struct vfs_handle_struct *handle,
933 					struct byte_range_lock *br_lck,
934 					struct lock_struct *plock);
935 
936 	bool (*brl_unlock_windows_fn)(struct vfs_handle_struct *handle,
937 				      struct byte_range_lock *br_lck,
938 				      const struct lock_struct *plock);
939 
940 	bool (*strict_lock_check_fn)(struct vfs_handle_struct *handle,
941 				     struct files_struct *fsp,
942 				     struct lock_struct *plock);
943 
944 	NTSTATUS (*translate_name_fn)(struct vfs_handle_struct *handle,
945 				      const char *name,
946 				      enum vfs_translate_direction direction,
947 				      TALLOC_CTX *mem_ctx,
948 				      char **mapped_name);
949 
950 	NTSTATUS (*fsctl_fn)(struct vfs_handle_struct *handle,
951 			     struct files_struct *fsp,
952 			     TALLOC_CTX *ctx,
953 			     uint32_t function,
954 			     uint16_t req_flags,
955 			     const uint8_t *_in_data,
956 			     uint32_t in_len,
957 			     uint8_t **_out_data,
958 			     uint32_t max_out_len,
959 			     uint32_t *out_len);
960 
961 	NTSTATUS (*get_dos_attributes_fn)(struct vfs_handle_struct *handle,
962 					  struct smb_filename *smb_fname,
963 					  uint32_t *dosmode);
964 
965 	NTSTATUS (*fget_dos_attributes_fn)(struct vfs_handle_struct *handle,
966 					   struct files_struct *fsp,
967 					   uint32_t *dosmode);
968 
969 	NTSTATUS (*set_dos_attributes_fn)(struct vfs_handle_struct *handle,
970 					  const struct smb_filename *smb_fname,
971 					  uint32_t dosmode);
972 
973 	NTSTATUS (*fset_dos_attributes_fn)(struct vfs_handle_struct *hande,
974 					   struct files_struct *fsp,
975 					   uint32_t dosmode);
976 
977 	struct tevent_req *(*get_dos_attributes_send_fn)(
978 				TALLOC_CTX *mem_ctx,
979 				struct tevent_context *ev,
980 				struct vfs_handle_struct *handle,
981 				files_struct *dir_fsp,
982 				struct smb_filename *smb_fname);
983 
984 	NTSTATUS (*get_dos_attributes_recv_fn)(
985 				struct tevent_req *req,
986 				struct vfs_aio_state *aio_state,
987 				uint32_t *dosmode);
988 
989 	/* NT ACL operations. */
990 
991 	NTSTATUS (*fget_nt_acl_fn)(struct vfs_handle_struct *handle,
992 				   struct files_struct *fsp,
993 				   uint32_t security_info,
994 				   TALLOC_CTX *mem_ctx,
995 				   struct security_descriptor **ppdesc);
996 	NTSTATUS (*get_nt_acl_fn)(struct vfs_handle_struct *handle,
997 				  const struct smb_filename *smb_fname,
998 				  uint32_t security_info,
999 				   TALLOC_CTX *mem_ctx,
1000 				  struct security_descriptor **ppdesc);
1001 	NTSTATUS (*fset_nt_acl_fn)(struct vfs_handle_struct *handle,
1002 				   struct files_struct *fsp,
1003 				   uint32_t security_info_sent,
1004 				   const struct security_descriptor *psd);
1005 
1006 	NTSTATUS (*audit_file_fn)(struct vfs_handle_struct *handle,
1007 				  struct smb_filename *file,
1008 				  struct security_acl *sacl,
1009 				  uint32_t access_requested,
1010 				  uint32_t access_denied);
1011 
1012 	/* POSIX ACL operations. */
1013 
1014 	SMB_ACL_T (*sys_acl_get_file_fn)(struct vfs_handle_struct *handle,
1015 					 const struct smb_filename *smb_fname,
1016 					 SMB_ACL_TYPE_T type,
1017 					 TALLOC_CTX *mem_ctx);
1018 	SMB_ACL_T (*sys_acl_get_fd_fn)(struct vfs_handle_struct *handle,
1019 				       struct files_struct *fsp,
1020 				       TALLOC_CTX *mem_ctx);
1021 	int (*sys_acl_blob_get_file_fn)(struct vfs_handle_struct *handle,
1022 					const struct smb_filename *smb_fname,
1023 					TALLOC_CTX *mem_ctx,
1024 					char **blob_description,
1025 					DATA_BLOB *blob);
1026 	int (*sys_acl_blob_get_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
1027 				      TALLOC_CTX *mem_ctx, char **blob_description,
1028 				      DATA_BLOB *blob);
1029 	int (*sys_acl_set_file_fn)(struct vfs_handle_struct *handle,
1030 					const struct smb_filename *smb_fname,
1031 					SMB_ACL_TYPE_T acltype,
1032 					SMB_ACL_T theacl);
1033 	int (*sys_acl_set_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
1034 	int (*sys_acl_delete_def_file_fn)(struct vfs_handle_struct *handle,
1035 					const struct smb_filename *smb_fname);
1036 
1037 	/* EA operations. */
1038 	ssize_t (*getxattr_fn)(struct vfs_handle_struct *handle,
1039 					const struct smb_filename *smb_fname,
1040 					const char *name,
1041 					void *value,
1042 					size_t size);
1043 	struct tevent_req *(*getxattrat_send_fn)(
1044 				TALLOC_CTX *mem_ctx,
1045 				struct tevent_context *ev,
1046 				struct vfs_handle_struct *handle,
1047 				files_struct *dir_fsp,
1048 				const struct smb_filename *smb_fname,
1049 				const char *xattr_name,
1050 				size_t alloc_hint);
1051 	ssize_t (*getxattrat_recv_fn)(struct tevent_req *req,
1052 				      struct vfs_aio_state *aio_state,
1053 				      TALLOC_CTX *mem_ctx,
1054 				      uint8_t **xattr_value);
1055 	ssize_t (*fgetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
1056 	ssize_t (*listxattr_fn)(struct vfs_handle_struct *handle,
1057 					const struct smb_filename *smb_fname,
1058 					char *list,
1059 					size_t size);
1060 	ssize_t (*flistxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
1061 	int (*removexattr_fn)(struct vfs_handle_struct *handle,
1062 					const struct smb_filename *smb_fname,
1063 					const char *name);
1064 	int (*fremovexattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
1065 	int (*setxattr_fn)(struct vfs_handle_struct *handle,
1066 					const struct smb_filename *smb_fname,
1067 					const char *name,
1068 					const void *value,
1069 					size_t size,
1070 					int flags);
1071 	int (*fsetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
1072 
1073 	/* aio operations */
1074 	bool (*aio_force_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
1075 
1076 	/* durable handle operations */
1077 	NTSTATUS (*durable_cookie_fn)(struct vfs_handle_struct *handle,
1078 				      struct files_struct *fsp,
1079 				      TALLOC_CTX *mem_ctx,
1080 				      DATA_BLOB *cookie);
1081 	NTSTATUS (*durable_disconnect_fn)(struct vfs_handle_struct *handle,
1082 					  struct files_struct *fsp,
1083 					  const DATA_BLOB old_cookie,
1084 					  TALLOC_CTX *mem_ctx,
1085 					  DATA_BLOB *new_cookie);
1086 	NTSTATUS (*durable_reconnect_fn)(struct vfs_handle_struct *handle,
1087 					 struct smb_request *smb1req,
1088 					 struct smbXsrv_open *op,
1089 					 const DATA_BLOB old_cookie,
1090 					 TALLOC_CTX *mem_ctx,
1091 					 struct files_struct **fsp,
1092 					 DATA_BLOB *new_cookie);
1093 
1094 	NTSTATUS (*readdir_attr_fn)(struct vfs_handle_struct *handle,
1095 				    const struct smb_filename *fname,
1096 				    TALLOC_CTX *mem_ctx,
1097 				    struct readdir_attr_data **attr_data);
1098 };
1099 
1100 /*
1101     VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
1102     which describes all operations this module is willing to intercept.
1103     VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
1104     using this information.
1105 */
1106 
1107 typedef struct vfs_handle_struct {
1108 	struct vfs_handle_struct  *next, *prev;
1109 	const char *param;
1110 	struct connection_struct *conn;
1111 	const struct vfs_fn_pointers *fns;
1112 	void *data;
1113 	void (*free_data)(void **data);
1114 } vfs_handle_struct;
1115 
1116 
1117 typedef struct vfs_statvfs_struct {
1118 	/* For undefined recommended transfer size return -1 in that field */
1119 	uint32_t OptimalTransferSize;  /* bsize on some os, iosize on other os */
1120 	uint32_t BlockSize;
1121 
1122 	/*
1123 	 The next three fields are in terms of the block size.
1124 	 (above). If block size is unknown, 4096 would be a
1125 	 reasonable block size for a server to report.
1126 	 Note that returning the blocks/blocksavail removes need
1127 	 to make a second call (to QFSInfo level 0x103 to get this info.
1128 	 UserBlockAvail is typically less than or equal to BlocksAvail,
1129 	 if no distinction is made return the same value in each.
1130 	*/
1131 
1132 	uint64_t TotalBlocks;
1133 	uint64_t BlocksAvail;       /* bfree */
1134 	uint64_t UserBlocksAvail;   /* bavail */
1135 
1136 	/* For undefined Node fields or FSID return -1 */
1137 	uint64_t TotalFileNodes;
1138 	uint64_t FreeFileNodes;
1139 	uint64_t FsIdentifier;   /* fsid */
1140 	/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
1141 	/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
1142 
1143 	int FsCapabilities;
1144 } vfs_statvfs_struct;
1145 
1146 /* Add a new FSP extension of the given type. Returns a pointer to the
1147  * extenstion data.
1148  */
1149 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn)		\
1150     (type *)vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
1151 
1152 /* Return a pointer to the existing FSP extension data. */
1153 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
1154     vfs_fetch_fsp_extension(handle, (fsp))
1155 
1156 /* Return the talloc context associated with an FSP extension. */
1157 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
1158     vfs_memctx_fsp_extension(handle, (fsp))
1159 
1160 /* Remove and destroy an FSP extension. */
1161 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
1162     vfs_remove_fsp_extension((handle), (fsp))
1163 
1164 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
1165 	if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
1166 		DEBUG(0,("%s() failed to get vfs_handle->data!\n",__FUNCTION__)); \
1167 		ret; \
1168 	} \
1169 }
1170 
1171 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
1172 	if (!(handle)) { \
1173 		DEBUG(0,("%s() failed to set handle->data!\n",__FUNCTION__)); \
1174 		ret; \
1175 	} else { \
1176 		if ((handle)->free_data) { \
1177 			(handle)->free_data(&(handle)->data); \
1178 		} \
1179 		(handle)->data = (void *)datap; \
1180 		(handle)->free_data = free_fn; \
1181 	} \
1182 }
1183 
1184 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
1185 	if ((handle) && (handle)->free_data) { \
1186 		(handle)->free_data(&(handle)->data); \
1187 	} \
1188 }
1189 
1190 /* Check whether module-specific data handle was already allocated or not */
1191 #define SMB_VFS_HANDLE_TEST_DATA(handle)  ( !(handle) || !(handle)->data ? False : True )
1192 
1193 #define SMB_VFS_OP(x) ((void *) x)
1194 
1195 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
1196 
1197 #include "vfs_macros.h"
1198 
1199 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1200 			 const char *service, const char *user);
1201 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
1202 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1203 				const struct smb_filename *smb_filename,
1204 				uint64_t *bsize,
1205 				uint64_t *dfree,
1206 				uint64_t *dsize);
1207 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1208 				const struct smb_filename *smb_filename,
1209 				enum SMB_QUOTA_TYPE qtype,
1210 				unid_t id,
1211 				SMB_DISK_QUOTA *qt);
1212 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1213 			   enum SMB_QUOTA_TYPE qtype, unid_t id,
1214 			   SMB_DISK_QUOTA *qt);
1215 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1216 				      struct files_struct *fsp,
1217 				      struct shadow_copy_data *shadow_copy_data,
1218 				      bool labels);
1219 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle,
1220 			const struct smb_filename *smb_fname,
1221 			struct vfs_statvfs_struct *statbuf);
1222 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1223 				      enum timestamp_set_resolution *p_ts_res);
1224 /*
1225  * Note: that "struct dfs_GetDFSReferral *r" needs to be a valid TALLOC_CTX
1226  */
1227 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
1228 					struct dfs_GetDFSReferral *r);
1229 NTSTATUS smb_vfs_call_create_dfs_pathat(struct vfs_handle_struct *handle,
1230 				struct files_struct *dirfsp,
1231 				const struct smb_filename *smb_fname,
1232 				const struct referral *reflist,
1233 				size_t referral_count);
1234 NTSTATUS smb_vfs_call_read_dfs_pathat(struct vfs_handle_struct *handle,
1235 				TALLOC_CTX *mem_ctx,
1236 				struct files_struct *dirfsp,
1237 				const struct smb_filename *smb_fname,
1238 				struct referral **ppreflist,
1239 				size_t *preferral_count);
1240 DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1241 			const struct smb_filename *smb_fname,
1242 			const char *mask,
1243 			uint32_t attributes);
1244 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1245 					struct files_struct *fsp,
1246 					const char *mask,
1247 					uint32_t attributes);
1248 struct dirent *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1249 					DIR *dirp,
1250 					SMB_STRUCT_STAT *sbuf);
1251 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1252 			  DIR *dirp, long offset);
1253 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1254 			  DIR *dirp);
1255 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1256 			     DIR *dirp);
1257 int smb_vfs_call_mkdirat(struct vfs_handle_struct *handle,
1258 			struct files_struct *dirfsp,
1259 			const struct smb_filename *smb_fname,
1260 			mode_t mode);
1261 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1262 			  DIR *dir);
1263 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1264 		      struct smb_filename *smb_fname, struct files_struct *fsp,
1265 		      int flags, mode_t mode);
1266 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1267 				  struct smb_request *req,
1268 				  uint16_t root_dir_fid,
1269 				  struct smb_filename *smb_fname,
1270 				  uint32_t access_mask,
1271 				  uint32_t share_access,
1272 				  uint32_t create_disposition,
1273 				  uint32_t create_options,
1274 				  uint32_t file_attributes,
1275 				  uint32_t oplock_request,
1276 				  const struct smb2_lease *lease,
1277 				  uint64_t allocation_size,
1278 				  uint32_t private_flags,
1279 				  struct security_descriptor *sd,
1280 				  struct ea_list *ea_list,
1281 				  files_struct **result,
1282 				  int *pinfo,
1283 				  const struct smb2_create_blobs *in_context_blobs,
1284 				  struct smb2_create_blobs *out_context_blobs);
1285 int smb_vfs_call_close(struct vfs_handle_struct *handle,
1286 		       struct files_struct *fsp);
1287 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1288 			   struct files_struct *fsp, void *data, size_t n,
1289 			   off_t offset);
1290 struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle,
1291 					   TALLOC_CTX *mem_ctx,
1292 					   struct tevent_context *ev,
1293 					   struct files_struct *fsp,
1294 					   void *data,
1295 					   size_t n, off_t offset);
1296 ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1297 
1298 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1299 			    struct files_struct *fsp, const void *data,
1300 			    size_t n, off_t offset);
1301 struct tevent_req *smb_vfs_call_pwrite_send(struct vfs_handle_struct *handle,
1302 					    TALLOC_CTX *mem_ctx,
1303 					    struct tevent_context *ev,
1304 					    struct files_struct *fsp,
1305 					    const void *data,
1306 					    size_t n, off_t offset);
1307 ssize_t SMB_VFS_PWRITE_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1308 
1309 off_t smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1310 			     struct files_struct *fsp, off_t offset,
1311 			     int whence);
1312 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1313 			      files_struct *fromfsp, const DATA_BLOB *header,
1314 			      off_t offset, size_t count);
1315 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1316 			      files_struct *tofsp, off_t offset,
1317 			      size_t count);
1318 int smb_vfs_call_renameat(struct vfs_handle_struct *handle,
1319 			struct files_struct *srcfsp,
1320 			const struct smb_filename *smb_fname_src,
1321 			struct files_struct *dstfsp,
1322 			const struct smb_filename *smb_fname_dst);
1323 
1324 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
1325 					   TALLOC_CTX *mem_ctx,
1326 					   struct tevent_context *ev,
1327 					   struct files_struct *fsp);
1328 int SMB_VFS_FSYNC_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1329 
1330 int smb_vfs_fsync_sync(files_struct *fsp);
1331 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1332 		      struct smb_filename *smb_fname);
1333 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1334 		       struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
1335 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1336 		       struct smb_filename *smb_filename);
1337 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1338 				     struct files_struct *fsp,
1339 				     const SMB_STRUCT_STAT *sbuf);
1340 int smb_vfs_call_unlinkat(struct vfs_handle_struct *handle,
1341 			struct files_struct *dirfsp,
1342 			const struct smb_filename *smb_fname,
1343 			int flags);
1344 int smb_vfs_call_chmod(struct vfs_handle_struct *handle,
1345 			const struct smb_filename *smb_fname,
1346 			mode_t mode);
1347 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1348 			struct files_struct *fsp, mode_t mode);
1349 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1350 			struct files_struct *fsp, uid_t uid, gid_t gid);
1351 int smb_vfs_call_lchown(struct vfs_handle_struct *handle,
1352 			const struct smb_filename *smb_fname,
1353 			uid_t uid,
1354 			gid_t gid);
1355 int smb_vfs_call_chdir(struct vfs_handle_struct *handle,
1356 			const struct smb_filename *smb_fname);
1357 struct smb_filename *smb_vfs_call_getwd(struct vfs_handle_struct *handle,
1358 				TALLOC_CTX *ctx);
1359 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1360 			const struct smb_filename *smb_fname,
1361 			struct smb_file_time *ft);
1362 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1363 			   struct files_struct *fsp, off_t offset);
1364 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1365 			   struct files_struct *fsp,
1366 			   uint32_t mode,
1367 			   off_t offset,
1368 			   off_t len);
1369 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
1370 		       struct files_struct *fsp, int op, off_t offset,
1371 		       off_t count, int type);
1372 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1373 			      struct files_struct *fsp, uint32_t share_access,
1374 			      uint32_t access_mask);
1375 int smb_vfs_call_fcntl(struct vfs_handle_struct *handle,
1376 		       struct files_struct *fsp, int cmd, ...);
1377 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1378 				struct files_struct *fsp, int leasetype);
1379 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
1380 			  struct files_struct *fsp, off_t *poffset,
1381 			  off_t *pcount, int *ptype, pid_t *ppid);
1382 int smb_vfs_call_symlinkat(struct vfs_handle_struct *handle,
1383 			const char *link_contents,
1384 			struct files_struct *dirfsp,
1385 			const struct smb_filename *new_smb_fname);
1386 int smb_vfs_call_readlinkat(struct vfs_handle_struct *handle,
1387 			struct files_struct *dirfsp,
1388 			const struct smb_filename *smb_fname,
1389 			char *buf,
1390 			size_t bufsiz);
1391 int smb_vfs_call_linkat(struct vfs_handle_struct *handle,
1392 			struct files_struct *srcfsp,
1393 			const struct smb_filename *old_smb_fname,
1394 			struct files_struct *dstfsp,
1395 			const struct smb_filename *new_smb_fname,
1396 			int flags);
1397 int smb_vfs_call_mknodat(struct vfs_handle_struct *handle,
1398 			struct files_struct *dirfsp,
1399 			const struct smb_filename *smb_fname,
1400 			mode_t mode,
1401 			SMB_DEV_T dev);
1402 struct smb_filename *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1403 			TALLOC_CTX *ctx,
1404 			const struct smb_filename *smb_fname);
1405 int smb_vfs_call_chflags(struct vfs_handle_struct *handle,
1406 			const struct smb_filename *smb_fname,
1407 			unsigned int flags);
1408 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1409 					   const SMB_STRUCT_STAT *sbuf);
1410 uint64_t smb_vfs_call_fs_file_id(struct vfs_handle_struct *handle,
1411 				 const SMB_STRUCT_STAT *sbuf);
1412 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1413 				 struct files_struct *fsp,
1414 				 const struct smb_filename *smb_fname,
1415 				 TALLOC_CTX *mem_ctx,
1416 				 unsigned int *num_streams,
1417 				 struct stream_struct **streams);
1418 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1419 				   const char *path, const char *name,
1420 				   TALLOC_CTX *mem_ctx, char **found_name);
1421 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1422 				     const struct smb_filename *smb_fname);
1423 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
1424 				       struct byte_range_lock *br_lck,
1425 				       struct lock_struct *plock);
1426 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
1427 				     struct byte_range_lock *br_lck,
1428 				     const struct lock_struct *plock);
1429 bool smb_vfs_call_strict_lock_check(struct vfs_handle_struct *handle,
1430 				    struct files_struct *fsp,
1431 				    struct lock_struct *plock);
1432 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1433 				     const char *name,
1434 				     enum vfs_translate_direction direction,
1435 				     TALLOC_CTX *mem_ctx,
1436 				     char **mapped_name);
1437 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
1438 			    struct files_struct *fsp,
1439 			    TALLOC_CTX *ctx,
1440 			    uint32_t function,
1441 			    uint16_t req_flags,
1442 			    const uint8_t *_in_data,
1443 			    uint32_t in_len,
1444 			    uint8_t **_out_data,
1445 			    uint32_t max_out_len,
1446 			    uint32_t *out_len);
1447 NTSTATUS smb_vfs_call_get_dos_attributes(struct vfs_handle_struct *handle,
1448 					 struct smb_filename *smb_fname,
1449 					 uint32_t *dosmode);
1450 NTSTATUS smb_vfs_call_fget_dos_attributes(struct vfs_handle_struct *handle,
1451 					  struct files_struct *fsp,
1452 					  uint32_t *dosmode);
1453 NTSTATUS smb_vfs_call_set_dos_attributes(struct vfs_handle_struct *handle,
1454 					 const struct smb_filename *smb_fname,
1455 					 uint32_t dosmode);
1456 NTSTATUS smb_vfs_call_fset_dos_attributes(struct vfs_handle_struct *handle,
1457 					  struct files_struct *fsp,
1458 					  uint32_t dosmode);
1459 struct tevent_req *smb_vfs_call_get_dos_attributes_send(
1460 			TALLOC_CTX *mem_ctx,
1461 			struct tevent_context *ev,
1462 			struct vfs_handle_struct *handle,
1463 			files_struct *dir_fsp,
1464 			struct smb_filename *smb_fname);
1465 NTSTATUS smb_vfs_call_get_dos_attributes_recv(
1466 			struct tevent_req *req,
1467 			struct vfs_aio_state *aio_state,
1468 			uint32_t *dosmode);
1469 struct tevent_req *smb_vfs_call_offload_read_send(
1470 	TALLOC_CTX *mem_ctx,
1471 	struct tevent_context *ev,
1472 	struct vfs_handle_struct *handle,
1473 	struct files_struct *fsp,
1474 	uint32_t fsctl,
1475 	uint32_t ttl,
1476 	off_t offset,
1477 	size_t to_copy);
1478 NTSTATUS smb_vfs_call_offload_read_recv(struct tevent_req *req,
1479 					struct vfs_handle_struct *handle,
1480 					TALLOC_CTX *mem_ctx,
1481 					DATA_BLOB *token_blob);
1482 struct tevent_req *smb_vfs_call_offload_write_send(struct vfs_handle_struct *handle,
1483 						   TALLOC_CTX *mem_ctx,
1484 						   struct tevent_context *ev,
1485 						   uint32_t fsctl,
1486 						   DATA_BLOB *token,
1487 						   off_t transfer_offset,
1488 						   struct files_struct *dest_fsp,
1489 						   off_t dest_off,
1490 						   off_t num);
1491 NTSTATUS smb_vfs_call_offload_write_recv(struct vfs_handle_struct *handle,
1492 					 struct tevent_req *req,
1493 					 off_t *copied);
1494 NTSTATUS smb_vfs_call_get_compression(struct vfs_handle_struct *handle,
1495 				      TALLOC_CTX *mem_ctx,
1496 				      struct files_struct *fsp,
1497 				      struct smb_filename *smb_fname,
1498 				      uint16_t *_compression_fmt);
1499 NTSTATUS smb_vfs_call_set_compression(struct vfs_handle_struct *handle,
1500 				      TALLOC_CTX *mem_ctx,
1501 				      struct files_struct *fsp,
1502 				      uint16_t compression_fmt);
1503 NTSTATUS smb_vfs_call_snap_check_path(vfs_handle_struct *handle,
1504 				      TALLOC_CTX *mem_ctx,
1505 				      const char *service_path,
1506 				      char **base_volume);
1507 NTSTATUS smb_vfs_call_snap_create(struct vfs_handle_struct *handle,
1508 				  TALLOC_CTX *mem_ctx,
1509 				  const char *base_volume,
1510 				  time_t *tstamp,
1511 				  bool rw,
1512 				  char **base_path,
1513 				  char **snap_path);
1514 NTSTATUS smb_vfs_call_snap_delete(struct vfs_handle_struct *handle,
1515 				  TALLOC_CTX *mem_ctx,
1516 				  char *base_path,
1517 				  char *snap_path);
1518 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1519 				  struct files_struct *fsp,
1520 				  uint32_t security_info,
1521 				  TALLOC_CTX *mem_ctx,
1522 				  struct security_descriptor **ppdesc);
1523 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1524 				 const struct smb_filename *smb_fname,
1525 				 uint32_t security_info,
1526 				 TALLOC_CTX *mem_ctx,
1527 				 struct security_descriptor **ppdesc);
1528 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1529 				  struct files_struct *fsp,
1530 				  uint32_t security_info_sent,
1531 				  const struct security_descriptor *psd);
1532 NTSTATUS smb_vfs_call_audit_file(struct vfs_handle_struct *handle,
1533 				 struct smb_filename *file,
1534 				 struct security_acl *sacl,
1535 				 uint32_t access_requested,
1536 				 uint32_t access_denied);
1537 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle,
1538 				const struct smb_filename *file,
1539 				mode_t mode);
1540 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1541 					const struct smb_filename *smb_fname,
1542 					SMB_ACL_TYPE_T type,
1543 					TALLOC_CTX *mem_ctx);
1544 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1545 				      struct files_struct *fsp,
1546 				      TALLOC_CTX *mem_ctx);
1547 int smb_vfs_call_sys_acl_blob_get_file(struct vfs_handle_struct *handle,
1548 				       const struct smb_filename *smb_fname,
1549 				       TALLOC_CTX *mem_ctx,
1550 				       char **blob_description,
1551 				       DATA_BLOB *blob);
1552 int smb_vfs_call_sys_acl_blob_get_fd(struct vfs_handle_struct *handle,
1553 				     struct files_struct *fsp,
1554 				     TALLOC_CTX *mem_ctx,
1555 				     char **blob_description,
1556 				     DATA_BLOB *blob);
1557 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1558 				const struct smb_filename *smb_fname,
1559 				SMB_ACL_TYPE_T acltype,
1560 				SMB_ACL_T theacl);
1561 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1562 				struct files_struct *fsp, SMB_ACL_T theacl);
1563 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1564 				const struct smb_filename *smb_fname);
1565 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1566 				const struct smb_filename *smb_fname,
1567 				const char *name,
1568 				void *value,
1569 				size_t size);
1570 struct tevent_req *smb_vfs_call_getxattrat_send(
1571 			TALLOC_CTX *mem_ctx,
1572 			struct tevent_context *ev,
1573 			struct vfs_handle_struct *handle,
1574 			files_struct *dir_fsp,
1575 			const struct smb_filename *smb_fname,
1576 			const char *xattr_name,
1577 			size_t alloc_hint);
1578 ssize_t smb_vfs_call_getxattrat_recv(struct tevent_req *req,
1579 				     struct vfs_aio_state *aio_state,
1580 				     TALLOC_CTX *mem_ctx,
1581 				     uint8_t **xattr_value);
1582 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1583 			       struct files_struct *fsp, const char *name,
1584 			       void *value, size_t size);
1585 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1586 				const struct smb_filename *smb_fname,
1587 				char *list,
1588 				size_t size);
1589 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1590 				struct files_struct *fsp, char *list,
1591 				size_t size);
1592 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1593 				const struct smb_filename *smb_fname,
1594 				const char *name);
1595 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1596 			      struct files_struct *fsp, const char *name);
1597 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle,
1598 				const struct smb_filename *smb_fname,
1599 				const char *name,
1600 				const void *value,
1601 				size_t size,
1602 				int flags);
1603 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1604 			   const char *name, const void *value, size_t size,
1605 			   int flags);
1606 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1607 			   struct files_struct *fsp, const char *name,
1608 			   const void *value, size_t size, int flags);
1609 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1610 			    struct files_struct *fsp);
1611 NTSTATUS smb_vfs_call_durable_cookie(struct vfs_handle_struct *handle,
1612 				     struct files_struct *fsp,
1613 				     TALLOC_CTX *mem_ctx,
1614 				     DATA_BLOB *cookie);
1615 NTSTATUS smb_vfs_call_durable_disconnect(struct vfs_handle_struct *handle,
1616 					 struct files_struct *fsp,
1617 					 const DATA_BLOB old_cookie,
1618 					 TALLOC_CTX *mem_ctx,
1619 					 DATA_BLOB *new_cookie);
1620 NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
1621 					struct smb_request *smb1req,
1622 					struct smbXsrv_open *op,
1623 					const DATA_BLOB old_cookie,
1624 					TALLOC_CTX *mem_ctx,
1625 					struct files_struct **fsp,
1626 					DATA_BLOB *new_cookie);
1627 NTSTATUS smb_vfs_call_readdir_attr(struct vfs_handle_struct *handle,
1628 				   const struct smb_filename *fname,
1629 				   TALLOC_CTX *mem_ctx,
1630 				   struct readdir_attr_data **attr_data);
1631 
1632 NTSTATUS smb_register_vfs(int version, const char *name,
1633 			  const struct vfs_fn_pointers *fns);
1634 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
1635 				   files_struct *fsp, size_t ext_size,
1636 				   void (*destroy_fn)(void *p_data));
1637 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1638 void vfs_remove_all_fsp_extensions(struct files_struct *fsp);
1639 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1640 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1641 
1642 void smb_vfs_assert_all_fns(const struct vfs_fn_pointers* fns,
1643 			    const char *module);
1644 
1645 /*
1646  * Helper functions from source3/modules/vfs_not_implemented.c
1647  */
1648 int vfs_not_implemented_connect(
1649 			vfs_handle_struct *handle,
1650 			const char *service,
1651 			const char *user);
1652 void vfs_not_implemented_disconnect(vfs_handle_struct *handle);
1653 uint64_t vfs_not_implemented_disk_free(vfs_handle_struct *handle,
1654 				const struct smb_filename *smb_fname,
1655 				uint64_t *bsize,
1656 				uint64_t *dfree,
1657 				uint64_t *dsize);
1658 int vfs_not_implemented_get_quota(vfs_handle_struct *handle,
1659 				const struct smb_filename *smb_fname,
1660 				enum SMB_QUOTA_TYPE qtype,
1661 				unid_t id,
1662 				SMB_DISK_QUOTA *dq);
1663 int vfs_not_implemented_set_quota(vfs_handle_struct *handle,
1664 				  enum SMB_QUOTA_TYPE qtype,
1665 				  unid_t id, SMB_DISK_QUOTA *dq);
1666 int vfs_not_implemented_get_shadow_copy_data(vfs_handle_struct *handle,
1667 				files_struct *fsp,
1668 				struct shadow_copy_data *shadow_copy_data,
1669 				bool labels);
1670 int vfs_not_implemented_statvfs(struct vfs_handle_struct *handle,
1671 				const struct smb_filename *smb_fname,
1672 				struct vfs_statvfs_struct *statbuf);
1673 uint32_t vfs_not_implemented_fs_capabilities(struct vfs_handle_struct *handle,
1674 				enum timestamp_set_resolution *p_ts_res);
1675 NTSTATUS vfs_not_implemented_get_dfs_referrals(struct vfs_handle_struct *handle,
1676 					       struct dfs_GetDFSReferral *r);
1677 NTSTATUS vfs_not_implemented_create_dfs_pathat(struct vfs_handle_struct *handle,
1678 				struct files_struct *dirfsp,
1679 				const struct smb_filename *smb_fname,
1680 				const struct referral *reflist,
1681 				size_t referral_count);
1682 NTSTATUS vfs_not_implemented_read_dfs_pathat(struct vfs_handle_struct *handle,
1683 				TALLOC_CTX *mem_ctx,
1684 				struct files_struct *dirfsp,
1685 				const struct smb_filename *smb_fname,
1686 				struct referral **ppreflist,
1687 				size_t *preferral_count);
1688 DIR *vfs_not_implemented_opendir(vfs_handle_struct *handle,
1689 			const struct smb_filename *smb_fname,
1690 			const char *mask,
1691 			uint32_t attr);
1692 NTSTATUS vfs_not_implemented_snap_check_path(struct vfs_handle_struct *handle,
1693 				TALLOC_CTX *mem_ctx,
1694 				const char *service_path,
1695 				char **base_volume);
1696 NTSTATUS vfs_not_implemented_snap_create(struct vfs_handle_struct *handle,
1697 					 TALLOC_CTX *mem_ctx,
1698 					 const char *base_volume,
1699 					 time_t *tstamp,
1700 					 bool rw,
1701 					 char **base_path,
1702 					 char **snap_path);
1703 NTSTATUS vfs_not_implemented_snap_delete(struct vfs_handle_struct *handle,
1704 					 TALLOC_CTX *mem_ctx,
1705 					 char *base_path,
1706 					 char *snap_path);
1707 DIR *vfs_not_implemented_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
1708 				   const char *mask, uint32_t attr);
1709 struct dirent *vfs_not_implemented_readdir(vfs_handle_struct *handle,
1710 					   DIR *dirp, SMB_STRUCT_STAT *sbuf);
1711 void vfs_not_implemented_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset);
1712 long vfs_not_implemented_telldir(vfs_handle_struct *handle, DIR *dirp);
1713 void vfs_not_implemented_rewind_dir(vfs_handle_struct *handle, DIR *dirp);
1714 int vfs_not_implemented_mkdirat(vfs_handle_struct *handle,
1715 		struct files_struct *dirfsp,
1716 		const struct smb_filename *smb_fname,
1717 		mode_t mode);
1718 int vfs_not_implemented_closedir(vfs_handle_struct *handle, DIR *dir);
1719 int vfs_not_implemented_open(vfs_handle_struct *handle,
1720 			     struct smb_filename *smb_fname,
1721 			     files_struct *fsp, int flags, mode_t mode);
1722 NTSTATUS vfs_not_implemented_create_file(struct vfs_handle_struct *handle,
1723 				struct smb_request *req,
1724 				uint16_t root_dir_fid,
1725 				struct smb_filename *smb_fname,
1726 				uint32_t access_mask,
1727 				uint32_t share_access,
1728 				uint32_t create_disposition,
1729 				uint32_t create_options,
1730 				uint32_t file_attributes,
1731 				uint32_t oplock_request,
1732 				const struct smb2_lease *lease,
1733 				uint64_t allocation_size,
1734 				uint32_t private_flags,
1735 				struct security_descriptor *sd,
1736 				struct ea_list *ea_list,
1737 				files_struct **result, int *pinfo,
1738 				const struct smb2_create_blobs *in_context_blobs,
1739 				struct smb2_create_blobs *out_context_blobs);
1740 int vfs_not_implemented_close_fn(vfs_handle_struct *handle, files_struct *fsp);
1741 ssize_t vfs_not_implemented_pread(vfs_handle_struct *handle, files_struct *fsp,
1742 				  void *data, size_t n, off_t offset);
1743 struct tevent_req *vfs_not_implemented_pread_send(struct vfs_handle_struct *handle,
1744 						  TALLOC_CTX *mem_ctx,
1745 						  struct tevent_context *ev,
1746 						  struct files_struct *fsp,
1747 						  void *data, size_t n, off_t offset);
1748 ssize_t vfs_not_implemented_pread_recv(struct tevent_req *req,
1749 				       struct vfs_aio_state *vfs_aio_state);
1750 ssize_t vfs_not_implemented_pwrite(vfs_handle_struct *handle, files_struct *fsp,
1751 				   const void *data, size_t n, off_t offset);
1752 struct tevent_req *vfs_not_implemented_pwrite_send(struct vfs_handle_struct *handle,
1753 						   TALLOC_CTX *mem_ctx,
1754 						   struct tevent_context *ev,
1755 						   struct files_struct *fsp,
1756 						   const void *data,
1757 						   size_t n, off_t offset);
1758 ssize_t vfs_not_implemented_pwrite_recv(struct tevent_req *req,
1759 				struct vfs_aio_state *vfs_aio_state);
1760 off_t vfs_not_implemented_lseek(vfs_handle_struct *handle, files_struct *fsp,
1761 			off_t offset, int whence);
1762 ssize_t vfs_not_implemented_sendfile(vfs_handle_struct *handle, int tofd,
1763 				     files_struct *fromfsp, const DATA_BLOB *hdr,
1764 				     off_t offset, size_t n);
1765 ssize_t vfs_not_implemented_recvfile(vfs_handle_struct *handle, int fromfd,
1766 				     files_struct *tofsp, off_t offset, size_t n);
1767 int vfs_not_implemented_renameat(vfs_handle_struct *handle,
1768 			       files_struct *srcfsp,
1769 			       const struct smb_filename *smb_fname_src,
1770 			       files_struct *dstfsp,
1771 			       const struct smb_filename *smb_fname_dst);
1772 struct tevent_req *vfs_not_implemented_fsync_send(struct vfs_handle_struct *handle,
1773 						  TALLOC_CTX *mem_ctx,
1774 						  struct tevent_context *ev,
1775 						  struct files_struct *fsp);
1776 int vfs_not_implemented_fsync_recv(struct tevent_req *req,
1777 				   struct vfs_aio_state *vfs_aio_state);
1778 int vfs_not_implemented_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname);
1779 int vfs_not_implemented_fstat(vfs_handle_struct *handle, files_struct *fsp,
1780 			SMB_STRUCT_STAT *sbuf);
1781 int vfs_not_implemented_lstat(vfs_handle_struct *handle,
1782 			      struct smb_filename *smb_fname);
1783 uint64_t vfs_not_implemented_get_alloc_size(struct vfs_handle_struct *handle,
1784 					    struct files_struct *fsp,
1785 					    const SMB_STRUCT_STAT *sbuf);
1786 int vfs_not_implemented_unlinkat(vfs_handle_struct *handle,
1787 				struct files_struct *dirfsp,
1788 				const struct smb_filename *smb_fname,
1789 				int flags);
1790 int vfs_not_implemented_chmod(vfs_handle_struct *handle,
1791 			      const struct smb_filename *smb_fname,
1792 			      mode_t mode);
1793 int vfs_not_implemented_fchmod(vfs_handle_struct *handle, files_struct *fsp,
1794 			       mode_t mode);
1795 int vfs_not_implemented_fchown(vfs_handle_struct *handle, files_struct *fsp,
1796 			       uid_t uid, gid_t gid);
1797 int vfs_not_implemented_lchown(vfs_handle_struct *handle,
1798 			       const struct smb_filename *smb_fname,
1799 			       uid_t uid,
1800 			       gid_t gid);
1801 int vfs_not_implemented_chdir(vfs_handle_struct *handle,
1802 			      const struct smb_filename *smb_fname);
1803 struct smb_filename *vfs_not_implemented_getwd(vfs_handle_struct *handle,
1804 					       TALLOC_CTX *ctx);
1805 int vfs_not_implemented_ntimes(vfs_handle_struct *handle,
1806 			       const struct smb_filename *smb_fname,
1807 			       struct smb_file_time *ft);
1808 int vfs_not_implemented_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1809 				  off_t offset);
1810 int vfs_not_implemented_fallocate(vfs_handle_struct *handle, files_struct *fsp,
1811 				  uint32_t mode, off_t offset, off_t len);
1812 bool vfs_not_implemented_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
1813 			      off_t offset, off_t count, int type);
1814 int vfs_not_implemented_kernel_flock(struct vfs_handle_struct *handle,
1815 				     struct files_struct *fsp,
1816 				     uint32_t share_access, uint32_t access_mask);
1817 int vfs_not_implemented_fcntl(struct vfs_handle_struct *handle,
1818 			      struct files_struct *fsp, int cmd, va_list cmd_arg);
1819 int vfs_not_implemented_linux_setlease(struct vfs_handle_struct *handle,
1820 				       struct files_struct *fsp, int leasetype);
1821 bool vfs_not_implemented_getlock(vfs_handle_struct *handle, files_struct *fsp,
1822 				 off_t *poffset, off_t *pcount, int *ptype,
1823 				 pid_t *ppid);
1824 int vfs_not_implemented_symlinkat(vfs_handle_struct *handle,
1825 				const char *link_contents,
1826 				struct files_struct *dirfsp,
1827 				const struct smb_filename *new_smb_fname);
1828 int vfs_not_implemented_vfs_readlinkat(vfs_handle_struct *handle,
1829 			struct files_struct *dirfsp,
1830 			const struct smb_filename *smb_fname,
1831 			char *buf,
1832 			size_t bufsiz);
1833 int vfs_not_implemented_linkat(vfs_handle_struct *handle,
1834 			struct files_struct *srcfsp,
1835 			const struct smb_filename *old_smb_fname,
1836 			struct files_struct *dstfsp,
1837 			const struct smb_filename *new_smb_fname,
1838 			int flags);
1839 int vfs_not_implemented_mknodat(vfs_handle_struct *handle,
1840 			struct files_struct *dirfsp,
1841 			const struct smb_filename *smb_fname,
1842 			mode_t mode,
1843 			SMB_DEV_T dev);
1844 struct smb_filename *vfs_not_implemented_realpath(vfs_handle_struct *handle,
1845 						  TALLOC_CTX *ctx,
1846 						  const struct smb_filename *smb_fname);
1847 int vfs_not_implemented_chflags(vfs_handle_struct *handle,
1848 				const struct smb_filename *smb_fname,
1849 				uint flags);
1850 struct file_id vfs_not_implemented_file_id_create(vfs_handle_struct *handle,
1851 						  const SMB_STRUCT_STAT *sbuf);
1852 uint64_t vfs_not_implemented_fs_file_id(vfs_handle_struct *handle,
1853 					const SMB_STRUCT_STAT *sbuf);
1854 struct tevent_req *vfs_not_implemented_offload_read_send(
1855 			TALLOC_CTX *mem_ctx,
1856 			struct tevent_context *ev,
1857 			struct vfs_handle_struct *handle,
1858 			struct files_struct *fsp,
1859 			uint32_t fsctl,
1860 			uint32_t ttl,
1861 			off_t offset,
1862 			size_t to_copy);
1863 NTSTATUS vfs_not_implemented_offload_read_recv(struct tevent_req *req,
1864 				       struct vfs_handle_struct *handle,
1865 				       TALLOC_CTX *mem_ctx,
1866 				       DATA_BLOB *_token_blob);
1867 struct tevent_req *vfs_not_implemented_offload_write_send(
1868 			struct vfs_handle_struct *handle,
1869 			TALLOC_CTX *mem_ctx,
1870 			struct tevent_context *ev,
1871 			uint32_t fsctl,
1872 			DATA_BLOB *token,
1873 			off_t transfer_offset,
1874 			struct files_struct *dest_fsp,
1875 			off_t dest_off,
1876 			off_t num);
1877 NTSTATUS vfs_not_implemented_offload_write_recv(struct vfs_handle_struct *handle,
1878 						struct tevent_req *req,
1879 						off_t *copied);
1880 NTSTATUS vfs_not_implemented_get_compression(struct vfs_handle_struct *handle,
1881 					     TALLOC_CTX *mem_ctx,
1882 					     struct files_struct *fsp,
1883 					     struct smb_filename *smb_fname,
1884 					     uint16_t *_compression_fmt);
1885 NTSTATUS vfs_not_implemented_set_compression(struct vfs_handle_struct *handle,
1886 					     TALLOC_CTX *mem_ctx,
1887 					     struct files_struct *fsp,
1888 					     uint16_t compression_fmt);
1889 NTSTATUS vfs_not_implemented_streaminfo(struct vfs_handle_struct *handle,
1890 					struct files_struct *fsp,
1891 					const struct smb_filename *smb_fname,
1892 					TALLOC_CTX *mem_ctx,
1893 					unsigned int *num_streams,
1894 					struct stream_struct **streams);
1895 int vfs_not_implemented_get_real_filename(struct vfs_handle_struct *handle,
1896 					  const char *path,
1897 					  const char *name,
1898 					  TALLOC_CTX *mem_ctx,
1899 					  char **found_name);
1900 const char *vfs_not_implemented_connectpath(struct vfs_handle_struct *handle,
1901 					    const struct smb_filename *smb_fname);
1902 NTSTATUS vfs_not_implemented_brl_lock_windows(struct vfs_handle_struct *handle,
1903 					      struct byte_range_lock *br_lck,
1904 					      struct lock_struct *plock);
1905 bool vfs_not_implemented_brl_unlock_windows(struct vfs_handle_struct *handle,
1906 					    struct byte_range_lock *br_lck,
1907 					    const struct lock_struct *plock);
1908 bool vfs_not_implemented_strict_lock_check(struct vfs_handle_struct *handle,
1909 					   struct files_struct *fsp,
1910 					   struct lock_struct *plock);
1911 NTSTATUS vfs_not_implemented_translate_name(struct vfs_handle_struct *handle,
1912 					    const char *mapped_name,
1913 					    enum vfs_translate_direction direction,
1914 					    TALLOC_CTX *mem_ctx, char **pmapped_name);
1915 NTSTATUS vfs_not_implemented_fsctl(struct vfs_handle_struct *handle,
1916 				   struct files_struct *fsp,
1917 				   TALLOC_CTX *ctx,
1918 				   uint32_t function,
1919 				   uint16_t req_flags,	/* Needed for UNICODE ... */
1920 				   const uint8_t *_in_data,
1921 				   uint32_t in_len,
1922 				   uint8_t **_out_data,
1923 				   uint32_t max_out_len, uint32_t *out_len);
1924 NTSTATUS vfs_not_implemented_readdir_attr(struct vfs_handle_struct *handle,
1925 					  const struct smb_filename *fname,
1926 					  TALLOC_CTX *mem_ctx,
1927 					  struct readdir_attr_data **pattr_data);
1928 NTSTATUS vfs_not_implemented_get_dos_attributes(struct vfs_handle_struct *handle,
1929 						struct smb_filename *smb_fname,
1930 						uint32_t *dosmode);
1931 struct tevent_req *vfs_not_implemented_get_dos_attributes_send(
1932 			TALLOC_CTX *mem_ctx,
1933 			struct tevent_context *ev,
1934 			struct vfs_handle_struct *handle,
1935 			files_struct *dir_fsp,
1936 			struct smb_filename *smb_fname);
1937 NTSTATUS vfs_not_implemented_get_dos_attributes_recv(
1938 			struct tevent_req *req,
1939 			struct vfs_aio_state *aio_state,
1940 			uint32_t *dosmode);
1941 NTSTATUS vfs_not_implemented_fget_dos_attributes(struct vfs_handle_struct *handle,
1942 						 struct files_struct *fsp,
1943 						 uint32_t *dosmode);
1944 NTSTATUS vfs_not_implemented_set_dos_attributes(struct vfs_handle_struct *handle,
1945 						const struct smb_filename *smb_fname,
1946 						uint32_t dosmode);
1947 NTSTATUS vfs_not_implemented_fset_dos_attributes(struct vfs_handle_struct *handle,
1948 						 struct files_struct *fsp,
1949 						 uint32_t dosmode);
1950 NTSTATUS vfs_not_implemented_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1951 					 uint32_t security_info,
1952 					 TALLOC_CTX *mem_ctx,
1953 					 struct security_descriptor **ppdesc);
1954 NTSTATUS vfs_not_implemented_get_nt_acl(vfs_handle_struct *handle,
1955 					const struct smb_filename *smb_fname,
1956 					uint32_t security_info,
1957 					TALLOC_CTX *mem_ctx,
1958 					struct security_descriptor **ppdesc);
1959 NTSTATUS vfs_not_implemented_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1960 					 uint32_t security_info_sent,
1961 					 const struct security_descriptor *psd);
1962 SMB_ACL_T vfs_not_implemented_sys_acl_get_file(vfs_handle_struct *handle,
1963 					       const struct smb_filename *smb_fname,
1964 					       SMB_ACL_TYPE_T type,
1965 					       TALLOC_CTX *mem_ctx);
1966 SMB_ACL_T vfs_not_implemented_sys_acl_get_fd(vfs_handle_struct *handle,
1967 					     files_struct *fsp, TALLOC_CTX *mem_ctx);
1968 int vfs_not_implemented_sys_acl_blob_get_file(vfs_handle_struct *handle,
1969 				const struct smb_filename *smb_fname,
1970 				TALLOC_CTX *mem_ctx,
1971 				char **blob_description,
1972 				DATA_BLOB *blob);
1973 int vfs_not_implemented_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1974 				files_struct *fsp, TALLOC_CTX *mem_ctx,
1975 				char **blob_description, DATA_BLOB *blob);
1976 int vfs_not_implemented_sys_acl_set_file(vfs_handle_struct *handle,
1977 				const struct smb_filename *smb_fname,
1978 				SMB_ACL_TYPE_T acltype,
1979 				SMB_ACL_T theacl);
1980 int vfs_not_implemented_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1981 				       SMB_ACL_T theacl);
1982 int vfs_not_implemented_sys_acl_delete_def_file(vfs_handle_struct *handle,
1983 					const struct smb_filename *smb_fname);
1984 ssize_t vfs_not_implemented_getxattr(vfs_handle_struct *handle,
1985 				const struct smb_filename *smb_fname,
1986 				const char *name,
1987 				void *value,
1988 				size_t size);
1989 struct tevent_req *vfs_not_implemented_getxattrat_send(
1990 			TALLOC_CTX *mem_ctx,
1991 			struct tevent_context *ev,
1992 			struct vfs_handle_struct *handle,
1993 			files_struct *dir_fsp,
1994 			const struct smb_filename *smb_fname,
1995 			const char *xattr_name,
1996 			size_t alloc_hint);
1997 ssize_t vfs_not_implemented_getxattrat_recv(struct tevent_req *req,
1998 				    struct vfs_aio_state *aio_state,
1999 				    TALLOC_CTX *mem_ctx,
2000 				    uint8_t **xattr_value);
2001 ssize_t vfs_not_implemented_fgetxattr(vfs_handle_struct *handle,
2002 			      struct files_struct *fsp, const char *name,
2003 			      void *value, size_t size);
2004 ssize_t vfs_not_implemented_listxattr(vfs_handle_struct *handle,
2005 				      const struct smb_filename *smb_fname,
2006 				      char *list,
2007 				      size_t size);
2008 ssize_t vfs_not_implemented_flistxattr(vfs_handle_struct *handle,
2009 				       struct files_struct *fsp, char *list,
2010 				       size_t size);
2011 int vfs_not_implemented_removexattr(vfs_handle_struct *handle,
2012 				    const struct smb_filename *smb_fname,
2013 				    const char *name);
2014 int vfs_not_implemented_fremovexattr(vfs_handle_struct *handle,
2015 				     struct files_struct *fsp, const char *name);
2016 int vfs_not_implemented_setxattr(vfs_handle_struct *handle,
2017 				 const struct smb_filename *smb_fname,
2018 				 const char *name,
2019 				 const void *value,
2020 				 size_t size,
2021 				 int flags);
2022 int vfs_not_implemented_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
2023 				  const char *name, const void *value, size_t size,
2024 				  int flags);
2025 bool vfs_not_implemented_aio_force(struct vfs_handle_struct *handle,
2026 				   struct files_struct *fsp);
2027 NTSTATUS vfs_not_implemented_audit_file(struct vfs_handle_struct *handle,
2028 					struct smb_filename *file,
2029 					struct security_acl *sacl,
2030 					uint32_t access_requested,
2031 					uint32_t access_denied);
2032 NTSTATUS vfs_not_implemented_durable_cookie(struct vfs_handle_struct *handle,
2033 					    struct files_struct *fsp,
2034 					    TALLOC_CTX *mem_ctx,
2035 					    DATA_BLOB *cookie);
2036 NTSTATUS vfs_not_implemented_durable_disconnect(struct vfs_handle_struct *handle,
2037 						struct files_struct *fsp,
2038 						const DATA_BLOB old_cookie,
2039 						TALLOC_CTX *mem_ctx,
2040 						DATA_BLOB *new_cookie);
2041 NTSTATUS vfs_not_implemented_durable_reconnect(struct vfs_handle_struct *handle,
2042 					       struct smb_request *smb1req,
2043 					       struct smbXsrv_open *op,
2044 					       const DATA_BLOB old_cookie,
2045 					       TALLOC_CTX *mem_ctx,
2046 					       struct files_struct **fsp,
2047 					       DATA_BLOB *new_cookie);
2048 #endif /* _VFS_H */
2049