Revert "s3: vfs: add user_vfs_evg to connection_struct"
[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 - Introduce smb_vfs_ev_glue infrastructure. */
261 /* Version 40 - Add vfs_not_implemented_* helper functions. */
262 /* Version 40 - Add SMB_VFS_GETXATTRAT_SEND/RECV */
263 /* Version 40 - Add SMB_VFS_GET_DOS_ATTRIBUTES_SEND/RECV */
264
265 #define SMB_VFS_INTERFACE_VERSION 40
266
267 /*
268     All intercepted VFS operations must be declared as static functions inside module source
269     in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
270     example VFS modules for more details.
271 */
272
273 /* VFS operations structure */
274
275 struct vfs_handle_struct;
276 struct connection_struct;
277 struct files_struct;
278 struct security_descriptor;
279 struct vfs_statvfs_struct;
280 struct smb_request;
281 struct ea_list;
282 struct smb_file_time;
283 struct blocking_lock_record;
284 struct smb_filename;
285 struct dfs_GetDFSReferral;
286 struct tevent_context;
287 struct pthreadpool_tevent;
288 struct smb_vfs_ev_glue;
289
290 typedef union unid_t {
291         uid_t uid;
292         gid_t gid;
293 } unid_t;
294
295 struct fd_handle {
296         size_t ref_count;
297         int fd;
298         uint64_t position_information;
299         off_t pos;
300         uint32_t private_options;       /* NT Create options, but we only look at
301                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_DOS and
302                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_FCB and
303                                  * NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE
304                                  * for print files *only*, where
305                                  * DELETE_ON_CLOSE is not stored in the share
306                                  * mode database.
307                                  */
308         unsigned long gen_id;
309 };
310
311 struct fsp_lease {
312         size_t ref_count;
313         struct smbd_server_connection *sconn;
314         struct tevent_timer *timeout;
315         struct smb2_lease lease;
316 };
317
318 typedef struct files_struct {
319         struct files_struct *next, *prev;
320         uint64_t fnum;
321         struct smbXsrv_open *op;
322         struct connection_struct *conn;
323         struct fd_handle *fh;
324         unsigned int num_smb_operations;
325         struct file_id file_id;
326         uint64_t initial_allocation_size; /* Faked up initial allocation on disk. */
327         uint16_t file_pid;
328         uint64_t vuid; /* SMB2 compat */
329         struct write_cache *wcp;
330         struct timeval open_time;
331         uint32_t access_mask;           /* NTCreateX access bits (FILE_READ_DATA etc.) */
332         uint32_t share_access;          /* NTCreateX share constants (FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE). */
333
334         bool kernel_share_modes_taken;
335
336         bool update_write_time_triggered;
337         struct tevent_timer *update_write_time_event;
338         bool update_write_time_on_close;
339         struct timespec close_write_time;
340         bool write_time_forced;
341
342         int oplock_type;
343         struct fsp_lease *lease;
344         int sent_oplock_break;
345         struct tevent_timer *oplock_timeout;
346         struct lock_struct last_lock_failure;
347         int current_lock_count; /* Count the number of outstanding locks and pending locks. */
348
349         bool can_lock;
350         bool can_read;
351         bool can_write;
352         bool modified;
353         bool is_directory;
354         bool aio_write_behind;
355         bool initial_delete_on_close; /* Only set at NTCreateX if file was created. */
356         bool delete_on_close;
357         uint64_t posix_flags;
358         bool is_sparse;
359         bool backup_intent; /* Handle was successfully opened with backup intent
360                                 and opener has privilege to do so. */
361         bool use_ofd_locks; /* Are we using open file description locks ? */
362         struct smb_filename *fsp_name;
363         uint32_t name_hash;             /* Jenkins hash of full pathname. */
364         uint64_t mid;                   /* Mid of the operation that created us. */
365
366         struct vfs_fsp_data *vfs_extension;
367         struct fake_file_handle *fake_file_handle;
368
369         struct notify_change_buf *notify;
370
371         struct files_struct *base_fsp; /* placeholder for delete on close */
372
373         /*
374          * Read-only cached brlock record, thrown away when the
375          * brlock.tdb seqnum changes. This avoids fetching data from
376          * the brlock.tdb on every read/write call.
377          */
378         int brlock_seqnum;
379         struct byte_range_lock *brlock_rec;
380
381         struct dptr_struct *dptr;
382
383         /* if not NULL, means this is a print file */
384         struct print_file_data *print_file;
385
386         unsigned num_aio_requests;
387         struct tevent_req **aio_requests;
388
389         /*
390          * If a close request comes in while we still have aio_requests
391          * around, we need to hold back the close. When all aio_requests are
392          * done, the aio completion routines need tevent_wait_done() on
393          * this. A bit ugly, but before we have close_file() fully async
394          * possibly the simplest approach. Thanks, Jeremy for the idea.
395          */
396         struct tevent_req *deferred_close;
397 } files_struct;
398
399 #define FSP_POSIX_FLAGS_OPEN            0x01
400 #define FSP_POSIX_FLAGS_RENAME          0x02
401 #define FSP_POSIX_FLAGS_PATHNAMES       0x04
402
403 #define FSP_POSIX_FLAGS_ALL                     \
404         (FSP_POSIX_FLAGS_OPEN |                 \
405          FSP_POSIX_FLAGS_PATHNAMES |            \
406          FSP_POSIX_FLAGS_RENAME)
407
408 struct vuid_cache_entry {
409         struct auth_session_info *session_info;
410         struct tevent_context *user_ev_ctx;
411         uint64_t vuid; /* SMB2 compat */
412         bool read_only;
413         uint32_t share_access;
414 };
415
416 struct vuid_cache {
417         unsigned int next_entry;
418         struct vuid_cache_entry array[VUID_CACHE_SIZE];
419 };
420
421 typedef struct {
422         char *name;
423         bool is_wild;
424 } name_compare_entry;
425
426 struct share_params {
427         int service;
428 };
429
430 typedef struct connection_struct {
431         struct connection_struct *next, *prev;
432         struct smbd_server_connection *sconn; /* can be NULL */
433         struct smbXsrv_tcon *tcon; /* can be NULL */
434         uint32_t cnum; /* an index passed over the wire */
435         struct share_params *params;
436         bool force_user;
437         struct vuid_cache *vuid_cache;
438         bool printer;
439         bool ipc;
440         bool read_only; /* Attributes for the current user of the share. */
441         uint32_t share_access;
442         /* Does this filesystem honor
443            sub second timestamps on files
444            and directories when setting time ? */
445         enum timestamp_set_resolution ts_res;
446         char *connectpath;
447         char *origpath;
448         struct smb_filename *cwd_fname; /* Working directory. */
449         bool tcon_done;
450
451         struct vfs_handle_struct *vfs_handles;          /* for the new plugins */
452
453         /*
454          * This represents the user information on this connection. Depending
455          * on the vuid using this tid, this might change per SMB request.
456          */
457         struct auth_session_info *session_info;
458         struct tevent_context *user_ev_ctx;
459
460         /*
461          * If the "force group" parameter is set, this is the primary gid that
462          * may be used in the users token, depending on the vuid using this tid.
463          */
464         gid_t force_group_gid;
465
466         uint64_t vuid; /* vuid of user who *opened* this connection, or UID_FIELD_INVALID */
467
468         time_t lastused;
469         time_t lastused_count;
470         int num_files_open;
471         unsigned int num_smb_operations; /* Count of smb operations on this tree. */
472         int encrypt_level;
473         bool encrypted_tid;
474
475         /* Semantics requested by the client or forced by the server config. */
476         bool case_sensitive;
477         bool case_preserve;
478         bool short_case_preserve;
479
480         /* Semantics provided by the underlying filesystem. */
481         int fs_capabilities;
482         /* Device number of the directory of the share mount.
483            Used to ensure unique FileIndex returns. */
484         SMB_DEV_T base_share_dev;
485
486         name_compare_entry *hide_list; /* Per-share list of files to return as hidden. */
487         name_compare_entry *veto_list; /* Per-share list of files to veto (never show). */
488         name_compare_entry *veto_oplock_list; /* Per-share list of files to refuse oplocks on. */       
489         name_compare_entry *aio_write_behind_list; /* Per-share list of files to use aio write behind on. */       
490         struct trans_state *pending_trans;
491
492         struct rpc_pipe_client *spoolss_pipe;
493
494 } connection_struct;
495
496 struct smbd_smb2_request;
497 struct privilege_paths;
498
499 struct smb_request {
500         uint8_t cmd;
501         uint16_t flags2;
502         uint16_t smbpid;
503         uint64_t mid; /* For compatibility with SMB2. */
504         uint32_t seqnum;
505         uint64_t vuid; /* For compatibility with SMB2. */
506         uint32_t tid;
507         uint8_t  wct;
508         const uint16_t *vwv;
509         uint16_t buflen;
510         const uint8_t *buf;
511         const uint8_t *inbuf;
512
513         /*
514          * Async handling in the main smb processing loop is directed by
515          * outbuf: reply_xxx routines indicate sync behaviour by putting their
516          * reply into "outbuf". If they leave it as NULL, they take care of it
517          * themselves, possibly later.
518          *
519          * If async handling is wanted, the reply_xxx routine must make sure
520          * that it talloc_move()s the smb_req somewhere else.
521          */
522         uint8_t *outbuf;
523
524         size_t unread_bytes;
525         bool encrypted;
526         /* the tevent_context (wrapper) the request operates on */
527         struct tevent_context *ev_ctx;
528         connection_struct *conn;
529         struct smbd_server_connection *sconn;
530         struct smbXsrv_connection *xconn;
531         struct smb_perfcount_data pcd;
532
533         /*
534          * Chained request handling
535          */
536         struct files_struct *chain_fsp;
537
538         /*
539          * state information for async smb handling
540          */
541         void *async_priv;
542
543         /*
544          * Back pointer to smb2 request.
545          */
546         struct smbd_smb2_request *smb2req;
547
548         /*
549          * Pathnames used if request done
550          * under privilege.
551          */
552         struct privilege_paths *priv_paths;
553
554         /*
555          * Request list for chained requests, we're part of it.
556          */
557         struct smb_request **chain;
558
559         struct timeval request_time;
560
561         bool posix_pathnames;
562 };
563
564 /*
565  * Info about an alternate data stream
566  */
567
568 struct stream_struct {
569         off_t size;
570         off_t alloc_size;
571         char *name;
572 };
573
574 /* time info */
575 struct smb_file_time {
576         struct timespec mtime;
577         struct timespec atime;
578         struct timespec ctime;
579         struct timespec create_time;
580 };
581
582 /*
583  * smb_filename
584  */
585 struct smb_filename {
586         char *base_name;
587         char *stream_name;
588         char *original_lcomp;
589         uint32_t flags;
590         SMB_STRUCT_STAT st;
591 };
592
593 /*
594  * smb_filename flags. Define in terms of the FSP_POSIX_FLAGS_XX
595  * to keep the numeric values consistent.
596  */
597
598 #define SMB_FILENAME_POSIX_PATH         FSP_POSIX_FLAGS_PATHNAMES
599
600 #define VFS_FIND(__fn__) while (handle->fns->__fn__##_fn==NULL) { \
601                                 handle = handle->next; \
602                          }
603
604 enum vfs_translate_direction {
605         vfs_translate_to_unix = 0,
606         vfs_translate_to_windows
607 };
608
609 enum vfs_fallocate_flags {
610         VFS_FALLOCATE_FL_KEEP_SIZE              = 0x0001,
611         VFS_FALLOCATE_FL_PUNCH_HOLE             = 0x0002,
612 };
613
614 struct vfs_aio_state {
615         int error;
616         uint64_t duration;
617 };
618
619 /*
620     Available VFS operations. These values must be in sync with vfs_ops struct
621     (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
622     In particular, if new operations are added to vfs_ops, appropriate constants
623     should be added to vfs_op_type so that order of them kept same as in vfs_ops.
624 */
625 struct shadow_copy_data;
626
627 struct vfs_fn_pointers {
628         /* Disk operations */
629
630         int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
631         void (*disconnect_fn)(struct vfs_handle_struct *handle);
632         uint64_t (*disk_free_fn)(struct vfs_handle_struct *handle,
633                                 const struct smb_filename *smb_fname,
634                                 uint64_t *bsize,
635                                 uint64_t *dfree,
636                                 uint64_t *dsize);
637         int (*get_quota_fn)(struct vfs_handle_struct *handle,
638                                 const struct smb_filename *smb_fname,
639                                 enum SMB_QUOTA_TYPE qtype,
640                                 unid_t id,
641                                 SMB_DISK_QUOTA *qt);
642         int (*set_quota_fn)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
643         int (*get_shadow_copy_data_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, struct shadow_copy_data *shadow_copy_data, bool labels);
644         int (*statvfs_fn)(struct vfs_handle_struct *handle,
645                                 const struct smb_filename *smb_fname,
646                                 struct vfs_statvfs_struct *statbuf);
647         uint32_t (*fs_capabilities_fn)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
648
649         /*
650          * Note: that "struct dfs_GetDFSReferral *r"
651          * needs to be a valid TALLOC_CTX
652          */
653         NTSTATUS (*get_dfs_referrals_fn)(struct vfs_handle_struct *handle,
654                                          struct dfs_GetDFSReferral *r);
655
656         /* Directory operations */
657
658         DIR *(*opendir_fn)(struct vfs_handle_struct *handle,
659                                         const struct smb_filename *smb_fname,
660                                         const char *mask,
661                                         uint32_t attributes);
662         DIR *(*fdopendir_fn)(struct vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32_t attributes);
663         struct dirent *(*readdir_fn)(struct vfs_handle_struct *handle,
664                                          DIR *dirp,
665                                          SMB_STRUCT_STAT *sbuf);
666         void (*seekdir_fn)(struct vfs_handle_struct *handle, DIR *dirp, long offset);
667         long (*telldir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
668         void (*rewind_dir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
669         int (*mkdir_fn)(struct vfs_handle_struct *handle,
670                         const struct smb_filename *smb_fname,
671                         mode_t mode);
672         int (*rmdir_fn)(struct vfs_handle_struct *handle,
673                         const struct smb_filename *smb_fname);
674         int (*closedir_fn)(struct vfs_handle_struct *handle, DIR *dir);
675
676         /* File operations */
677
678         int (*open_fn)(struct vfs_handle_struct *handle,
679                        struct smb_filename *smb_fname, files_struct *fsp,
680                        int flags, mode_t mode);
681         NTSTATUS (*create_file_fn)(struct vfs_handle_struct *handle,
682                                    struct smb_request *req,
683                                    uint16_t root_dir_fid,
684                                    struct smb_filename *smb_fname,
685                                    uint32_t access_mask,
686                                    uint32_t share_access,
687                                    uint32_t create_disposition,
688                                    uint32_t create_options,
689                                    uint32_t file_attributes,
690                                    uint32_t oplock_request,
691                                    struct smb2_lease *lease,
692                                    uint64_t allocation_size,
693                                    uint32_t private_flags,
694                                    struct security_descriptor *sd,
695                                    struct ea_list *ea_list,
696                                    files_struct **result,
697                                    int *pinfo,
698                                    const struct smb2_create_blobs *in_context_blobs,
699                                    struct smb2_create_blobs *out_context_blobs);
700         int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
701         ssize_t (*pread_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, off_t offset);
702         struct tevent_req *(*pread_send_fn)(struct vfs_handle_struct *handle,
703                                             TALLOC_CTX *mem_ctx,
704                                             struct tevent_context *ev,
705                                             struct files_struct *fsp,
706                                             void *data,
707                                             size_t n, off_t offset);
708         ssize_t (*pread_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
709         ssize_t (*pwrite_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, off_t offset);
710         struct tevent_req *(*pwrite_send_fn)(struct vfs_handle_struct *handle,
711                                              TALLOC_CTX *mem_ctx,
712                                              struct tevent_context *ev,
713                                              struct files_struct *fsp,
714                                              const void *data,
715                                              size_t n, off_t offset);
716         ssize_t (*pwrite_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
717         off_t (*lseek_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset, int whence);
718         ssize_t (*sendfile_fn)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, off_t offset, size_t count);
719         ssize_t (*recvfile_fn)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, off_t offset, size_t count);
720         int (*rename_fn)(struct vfs_handle_struct *handle,
721                          const struct smb_filename *smb_fname_src,
722                          const struct smb_filename *smb_fname_dst);
723         struct tevent_req *(*fsync_send_fn)(struct vfs_handle_struct *handle,
724                                             TALLOC_CTX *mem_ctx,
725                                             struct tevent_context *ev,
726                                             struct files_struct *fsp);
727         int (*fsync_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
728         int (*stat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
729         int (*fstat_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
730         int (*lstat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
731         uint64_t (*get_alloc_size_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
732         int (*unlink_fn)(struct vfs_handle_struct *handle,
733                          const struct smb_filename *smb_fname);
734         int (*chmod_fn)(struct vfs_handle_struct *handle,
735                         const struct smb_filename *smb_fname,
736                         mode_t mode);
737         int (*fchmod_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
738         int (*chown_fn)(struct vfs_handle_struct *handle,
739                         const struct smb_filename *smb_fname,
740                         uid_t uid,
741                         gid_t gid);
742         int (*fchown_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
743         int (*lchown_fn)(struct vfs_handle_struct *handle,
744                         const struct smb_filename *smb_fname,
745                         uid_t uid,
746                         gid_t gid);
747         int (*chdir_fn)(struct vfs_handle_struct *handle,
748                          const struct smb_filename *smb_fname);
749         struct smb_filename *(*getwd_fn)(struct vfs_handle_struct *handle,
750                                 TALLOC_CTX *mem_ctx);
751         int (*ntimes_fn)(struct vfs_handle_struct *handle,
752                          const struct smb_filename *smb_fname,
753                          struct smb_file_time *ft);
754         int (*ftruncate_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset);
755         int (*fallocate_fn)(struct vfs_handle_struct *handle,
756                             struct files_struct *fsp,
757                             uint32_t mode,
758                             off_t offset,
759                             off_t len);
760         bool (*lock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, off_t offset, off_t count, int type);
761         int (*kernel_flock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
762                                uint32_t share_mode, uint32_t access_mask);
763         int (*linux_setlease_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
764         bool (*getlock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid);
765         int (*symlink_fn)(struct vfs_handle_struct *handle,
766                                 const char *link_contents,
767                                 const struct smb_filename *new_smb_fname);
768         int (*readlink_fn)(struct vfs_handle_struct *handle,
769                                 const struct smb_filename *smb_fname,
770                                 char *buf,
771                                 size_t bufsiz);
772         int (*link_fn)(struct vfs_handle_struct *handle,
773                                 const struct smb_filename *old_smb_fname,
774                                 const struct smb_filename *new_smb_fname);
775         int (*mknod_fn)(struct vfs_handle_struct *handle,
776                                 const struct smb_filename *smb_fname,
777                                 mode_t mode,
778                                 SMB_DEV_T dev);
779         struct smb_filename *(*realpath_fn)(struct vfs_handle_struct *handle,
780                                 TALLOC_CTX *ctx,
781                                 const struct smb_filename *smb_fname);
782         int (*chflags_fn)(struct vfs_handle_struct *handle,
783                                 const struct smb_filename *smb_fname,
784                                 unsigned int flags);
785         struct file_id (*file_id_create_fn)(struct vfs_handle_struct *handle,
786                                             const SMB_STRUCT_STAT *sbuf);
787         struct tevent_req *(*offload_read_send_fn)(TALLOC_CTX *mem_ctx,
788                                                    struct tevent_context *ev,
789                                                    struct vfs_handle_struct *handle,
790                                                    struct files_struct *fsp,
791                                                    uint32_t fsctl,
792                                                    uint32_t ttl,
793                                                    off_t offset,
794                                                    size_t to_copy);
795         NTSTATUS (*offload_read_recv_fn)(struct tevent_req *req,
796                                          struct vfs_handle_struct *handle,
797                                          TALLOC_CTX *mem_ctx,
798                                          DATA_BLOB *token_blob);
799         struct tevent_req *(*offload_write_send_fn)(struct vfs_handle_struct *handle,
800                                                     TALLOC_CTX *mem_ctx,
801                                                     struct tevent_context *ev,
802                                                     uint32_t fsctl,
803                                                     DATA_BLOB *token,
804                                                     off_t transfer_offset,
805                                                     struct files_struct *dest_fsp,
806                                                     off_t dest_off,
807                                                     off_t to_copy);
808         NTSTATUS (*offload_write_recv_fn)(struct vfs_handle_struct *handle,
809                                           struct tevent_req *req,
810                                           off_t *copied);
811         NTSTATUS (*get_compression_fn)(struct vfs_handle_struct *handle,
812                                        TALLOC_CTX *mem_ctx,
813                                        struct files_struct *fsp,
814                                        struct smb_filename *smb_fname,
815                                        uint16_t *_compression_fmt);
816         NTSTATUS (*set_compression_fn)(struct vfs_handle_struct *handle,
817                                        TALLOC_CTX *mem_ctx,
818                                        struct files_struct *fsp,
819                                        uint16_t compression_fmt);
820         NTSTATUS (*snap_check_path_fn)(struct vfs_handle_struct *handle,
821                                        TALLOC_CTX *mem_ctx,
822                                        const char *service_path,
823                                        char **base_volume);
824         NTSTATUS (*snap_create_fn)(struct vfs_handle_struct *handle,
825                                    TALLOC_CTX *mem_ctx,
826                                    const char *base_volume,
827                                    time_t *tstamp,
828                                    bool rw,
829                                    char **base_path,
830                                    char **snap_path);
831         NTSTATUS (*snap_delete_fn)(struct vfs_handle_struct *handle,
832                                    TALLOC_CTX *mem_ctx,
833                                    char *base_path,
834                                    char *snap_path);
835
836         NTSTATUS (*streaminfo_fn)(struct vfs_handle_struct *handle,
837                                   struct files_struct *fsp,
838                                   const struct smb_filename *smb_fname,
839                                   TALLOC_CTX *mem_ctx,
840                                   unsigned int *num_streams,
841                                   struct stream_struct **streams);
842
843         int (*get_real_filename_fn)(struct vfs_handle_struct *handle,
844                                     const char *path,
845                                     const char *name,
846                                     TALLOC_CTX *mem_ctx,
847                                     char **found_name);
848
849         const char *(*connectpath_fn)(struct vfs_handle_struct *handle,
850                                       const struct smb_filename *smb_fname);
851
852         NTSTATUS (*brl_lock_windows_fn)(struct vfs_handle_struct *handle,
853                                         struct byte_range_lock *br_lck,
854                                         struct lock_struct *plock,
855                                         bool blocking_lock);
856
857         bool (*brl_unlock_windows_fn)(struct vfs_handle_struct *handle,
858                                       struct messaging_context *msg_ctx,
859                                       struct byte_range_lock *br_lck,
860                                       const struct lock_struct *plock);
861
862         bool (*brl_cancel_windows_fn)(struct vfs_handle_struct *handle,
863                                       struct byte_range_lock *br_lck,
864                                       struct lock_struct *plock);
865
866         bool (*strict_lock_check_fn)(struct vfs_handle_struct *handle,
867                                      struct files_struct *fsp,
868                                      struct lock_struct *plock);
869
870         NTSTATUS (*translate_name_fn)(struct vfs_handle_struct *handle,
871                                       const char *name,
872                                       enum vfs_translate_direction direction,
873                                       TALLOC_CTX *mem_ctx,
874                                       char **mapped_name);
875
876         NTSTATUS (*fsctl_fn)(struct vfs_handle_struct *handle,
877                              struct files_struct *fsp,
878                              TALLOC_CTX *ctx,
879                              uint32_t function,
880                              uint16_t req_flags,
881                              const uint8_t *_in_data,
882                              uint32_t in_len,
883                              uint8_t **_out_data,
884                              uint32_t max_out_len,
885                              uint32_t *out_len); 
886
887         NTSTATUS (*get_dos_attributes_fn)(struct vfs_handle_struct *handle,
888                                           struct smb_filename *smb_fname,
889                                           uint32_t *dosmode);
890
891         NTSTATUS (*fget_dos_attributes_fn)(struct vfs_handle_struct *handle,
892                                            struct files_struct *fsp,
893                                            uint32_t *dosmode);
894
895         NTSTATUS (*set_dos_attributes_fn)(struct vfs_handle_struct *handle,
896                                           const struct smb_filename *smb_fname,
897                                           uint32_t dosmode);
898
899         NTSTATUS (*fset_dos_attributes_fn)(struct vfs_handle_struct *hande,
900                                            struct files_struct *fsp,
901                                            uint32_t dosmode);
902
903         struct tevent_req *(*get_dos_attributes_send_fn)(
904                                 TALLOC_CTX *mem_ctx,
905                                 struct tevent_context *ev,
906                                 struct vfs_handle_struct *handle,
907                                 files_struct *dir_fsp,
908                                 struct smb_filename *smb_fname);
909
910         NTSTATUS (*get_dos_attributes_recv_fn)(
911                                 struct tevent_req *req,
912                                 struct vfs_aio_state *aio_state,
913                                 uint32_t *dosmode);
914
915         /* NT ACL operations. */
916
917         NTSTATUS (*fget_nt_acl_fn)(struct vfs_handle_struct *handle,
918                                    struct files_struct *fsp,
919                                    uint32_t security_info,
920                                    TALLOC_CTX *mem_ctx,
921                                    struct security_descriptor **ppdesc);
922         NTSTATUS (*get_nt_acl_fn)(struct vfs_handle_struct *handle,
923                                   const struct smb_filename *smb_fname,
924                                   uint32_t security_info,
925                                    TALLOC_CTX *mem_ctx,
926                                   struct security_descriptor **ppdesc);
927         NTSTATUS (*fset_nt_acl_fn)(struct vfs_handle_struct *handle,
928                                    struct files_struct *fsp,
929                                    uint32_t security_info_sent,
930                                    const struct security_descriptor *psd);
931
932         NTSTATUS (*audit_file_fn)(struct vfs_handle_struct *handle,
933                                   struct smb_filename *file,
934                                   struct security_acl *sacl,
935                                   uint32_t access_requested,
936                                   uint32_t access_denied);
937
938         /* POSIX ACL operations. */
939
940         SMB_ACL_T (*sys_acl_get_file_fn)(struct vfs_handle_struct *handle,
941                                          const struct smb_filename *smb_fname,
942                                          SMB_ACL_TYPE_T type,
943                                          TALLOC_CTX *mem_ctx);
944         SMB_ACL_T (*sys_acl_get_fd_fn)(struct vfs_handle_struct *handle,
945                                        struct files_struct *fsp,
946                                        TALLOC_CTX *mem_ctx);
947         int (*sys_acl_blob_get_file_fn)(struct vfs_handle_struct *handle,
948                                         const struct smb_filename *smb_fname,
949                                         TALLOC_CTX *mem_ctx,
950                                         char **blob_description,
951                                         DATA_BLOB *blob);
952         int (*sys_acl_blob_get_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
953                                       TALLOC_CTX *mem_ctx, char **blob_description,
954                                       DATA_BLOB *blob);
955         int (*sys_acl_set_file_fn)(struct vfs_handle_struct *handle,
956                                         const struct smb_filename *smb_fname,
957                                         SMB_ACL_TYPE_T acltype,
958                                         SMB_ACL_T theacl);
959         int (*sys_acl_set_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
960         int (*sys_acl_delete_def_file_fn)(struct vfs_handle_struct *handle,
961                                         const struct smb_filename *smb_fname);
962
963         /* EA operations. */
964         ssize_t (*getxattr_fn)(struct vfs_handle_struct *handle,
965                                         const struct smb_filename *smb_fname,
966                                         const char *name,
967                                         void *value,
968                                         size_t size);
969         struct tevent_req *(*getxattrat_send_fn)(
970                                 TALLOC_CTX *mem_ctx,
971                                 struct tevent_context *ev,
972                                 struct vfs_handle_struct *handle,
973                                 files_struct *dir_fsp,
974                                 const struct smb_filename *smb_fname,
975                                 const char *xattr_name,
976                                 size_t alloc_hint);
977         ssize_t (*getxattrat_recv_fn)(struct tevent_req *req,
978                                       struct vfs_aio_state *aio_state,
979                                       TALLOC_CTX *mem_ctx,
980                                       uint8_t **xattr_value);
981         ssize_t (*fgetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
982         ssize_t (*listxattr_fn)(struct vfs_handle_struct *handle,
983                                         const struct smb_filename *smb_fname,
984                                         char *list,
985                                         size_t size);
986         ssize_t (*flistxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
987         int (*removexattr_fn)(struct vfs_handle_struct *handle,
988                                         const struct smb_filename *smb_fname,
989                                         const char *name);
990         int (*fremovexattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
991         int (*setxattr_fn)(struct vfs_handle_struct *handle,
992                                         const struct smb_filename *smb_fname,
993                                         const char *name,
994                                         const void *value,
995                                         size_t size,
996                                         int flags);
997         int (*fsetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
998
999         /* aio operations */
1000         bool (*aio_force_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
1001
1002         /* durable handle operations */
1003         NTSTATUS (*durable_cookie_fn)(struct vfs_handle_struct *handle,
1004                                       struct files_struct *fsp,
1005                                       TALLOC_CTX *mem_ctx,
1006                                       DATA_BLOB *cookie);
1007         NTSTATUS (*durable_disconnect_fn)(struct vfs_handle_struct *handle,
1008                                           struct files_struct *fsp,
1009                                           const DATA_BLOB old_cookie,
1010                                           TALLOC_CTX *mem_ctx,
1011                                           DATA_BLOB *new_cookie);
1012         NTSTATUS (*durable_reconnect_fn)(struct vfs_handle_struct *handle,
1013                                          struct smb_request *smb1req,
1014                                          struct smbXsrv_open *op,
1015                                          const DATA_BLOB old_cookie,
1016                                          TALLOC_CTX *mem_ctx,
1017                                          struct files_struct **fsp,
1018                                          DATA_BLOB *new_cookie);
1019
1020         NTSTATUS (*readdir_attr_fn)(struct vfs_handle_struct *handle,
1021                                     const struct smb_filename *fname,
1022                                     TALLOC_CTX *mem_ctx,
1023                                     struct readdir_attr_data **attr_data);
1024 };
1025
1026 /*
1027     VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
1028     which describes all operations this module is willing to intercept.
1029     VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
1030     using this information.
1031 */
1032
1033 typedef struct vfs_handle_struct {
1034         struct vfs_handle_struct  *next, *prev;
1035         const char *param;
1036         struct connection_struct *conn;
1037         const struct vfs_fn_pointers *fns;
1038         void *data;
1039         void (*free_data)(void **data);
1040 } vfs_handle_struct;
1041
1042
1043 typedef struct vfs_statvfs_struct {
1044         /* For undefined recommended transfer size return -1 in that field */
1045         uint32_t OptimalTransferSize;  /* bsize on some os, iosize on other os */
1046         uint32_t BlockSize;
1047
1048         /*
1049          The next three fields are in terms of the block size.
1050          (above). If block size is unknown, 4096 would be a
1051          reasonable block size for a server to report.
1052          Note that returning the blocks/blocksavail removes need
1053          to make a second call (to QFSInfo level 0x103 to get this info.
1054          UserBlockAvail is typically less than or equal to BlocksAvail,
1055          if no distinction is made return the same value in each.
1056         */
1057
1058         uint64_t TotalBlocks;
1059         uint64_t BlocksAvail;       /* bfree */
1060         uint64_t UserBlocksAvail;   /* bavail */
1061
1062         /* For undefined Node fields or FSID return -1 */
1063         uint64_t TotalFileNodes;
1064         uint64_t FreeFileNodes;
1065         uint64_t FsIdentifier;   /* fsid */
1066         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
1067         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
1068
1069         int FsCapabilities;
1070 } vfs_statvfs_struct;
1071
1072 /* Add a new FSP extension of the given type. Returns a pointer to the
1073  * extenstion data.
1074  */
1075 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn)            \
1076     (type *)vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
1077
1078 /* Return a pointer to the existing FSP extension data. */
1079 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
1080     vfs_fetch_fsp_extension(handle, (fsp))
1081
1082 /* Return the talloc context associated with an FSP extension. */
1083 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
1084     vfs_memctx_fsp_extension(handle, (fsp))
1085
1086 /* Remove and destroy an FSP extension. */
1087 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
1088     vfs_remove_fsp_extension((handle), (fsp))
1089
1090 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
1091         if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
1092                 DEBUG(0,("%s() failed to get vfs_handle->data!\n",__FUNCTION__)); \
1093                 ret; \
1094         } \
1095 }
1096
1097 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
1098         if (!(handle)) { \
1099                 DEBUG(0,("%s() failed to set handle->data!\n",__FUNCTION__)); \
1100                 ret; \
1101         } else { \
1102                 if ((handle)->free_data) { \
1103                         (handle)->free_data(&(handle)->data); \
1104                 } \
1105                 (handle)->data = (void *)datap; \
1106                 (handle)->free_data = free_fn; \
1107         } \
1108 }
1109
1110 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
1111         if ((handle) && (handle)->free_data) { \
1112                 (handle)->free_data(&(handle)->data); \
1113         } \
1114 }
1115
1116 /* Check whether module-specific data handle was already allocated or not */
1117 #define SMB_VFS_HANDLE_TEST_DATA(handle)  ( !(handle) || !(handle)->data ? False : True )
1118
1119 #define SMB_VFS_OP(x) ((void *) x)
1120
1121 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
1122
1123 #include "vfs_macros.h"
1124
1125 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1126                          const char *service, const char *user);
1127 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
1128 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1129                                 const struct smb_filename *smb_filename,
1130                                 uint64_t *bsize,
1131                                 uint64_t *dfree,
1132                                 uint64_t *dsize);
1133 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1134                                 const struct smb_filename *smb_filename,
1135                                 enum SMB_QUOTA_TYPE qtype,
1136                                 unid_t id,
1137                                 SMB_DISK_QUOTA *qt);
1138 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1139                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1140                            SMB_DISK_QUOTA *qt);
1141 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1142                                       struct files_struct *fsp,
1143                                       struct shadow_copy_data *shadow_copy_data,
1144                                       bool labels);
1145 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle,
1146                         const struct smb_filename *smb_fname,
1147                         struct vfs_statvfs_struct *statbuf);
1148 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1149                                       enum timestamp_set_resolution *p_ts_res);
1150 /*
1151  * Note: that "struct dfs_GetDFSReferral *r" needs to be a valid TALLOC_CTX
1152  */
1153 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
1154                                         struct dfs_GetDFSReferral *r);
1155 DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1156                         const struct smb_filename *smb_fname,
1157                         const char *mask,
1158                         uint32_t attributes);
1159 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1160                                         struct files_struct *fsp,
1161                                         const char *mask,
1162                                         uint32_t attributes);
1163 struct dirent *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1164                                         DIR *dirp,
1165                                         SMB_STRUCT_STAT *sbuf);
1166 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1167                           DIR *dirp, long offset);
1168 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1169                           DIR *dirp);
1170 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1171                              DIR *dirp);
1172 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle,
1173                         const struct smb_filename *smb_fname,
1174                         mode_t mode);
1175 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle,
1176                         const struct smb_filename *smb_fname);
1177 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1178                           DIR *dir);
1179 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1180                       struct smb_filename *smb_fname, struct files_struct *fsp,
1181                       int flags, mode_t mode);
1182 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1183                                   struct smb_request *req,
1184                                   uint16_t root_dir_fid,
1185                                   struct smb_filename *smb_fname,
1186                                   uint32_t access_mask,
1187                                   uint32_t share_access,
1188                                   uint32_t create_disposition,
1189                                   uint32_t create_options,
1190                                   uint32_t file_attributes,
1191                                   uint32_t oplock_request,
1192                                   struct smb2_lease *lease,
1193                                   uint64_t allocation_size,
1194                                   uint32_t private_flags,
1195                                   struct security_descriptor *sd,
1196                                   struct ea_list *ea_list,
1197                                   files_struct **result,
1198                                   int *pinfo,
1199                                   const struct smb2_create_blobs *in_context_blobs,
1200                                   struct smb2_create_blobs *out_context_blobs);
1201 int smb_vfs_call_close(struct vfs_handle_struct *handle,
1202                        struct files_struct *fsp);
1203 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1204                            struct files_struct *fsp, void *data, size_t n,
1205                            off_t offset);
1206 struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle,
1207                                            TALLOC_CTX *mem_ctx,
1208                                            struct tevent_context *ev,
1209                                            struct files_struct *fsp,
1210                                            void *data,
1211                                            size_t n, off_t offset);
1212 ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1213
1214 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1215                             struct files_struct *fsp, const void *data,
1216                             size_t n, off_t offset);
1217 struct tevent_req *smb_vfs_call_pwrite_send(struct vfs_handle_struct *handle,
1218                                             TALLOC_CTX *mem_ctx,
1219                                             struct tevent_context *ev,
1220                                             struct files_struct *fsp,
1221                                             const void *data,
1222                                             size_t n, off_t offset);
1223 ssize_t SMB_VFS_PWRITE_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1224
1225 off_t smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1226                              struct files_struct *fsp, off_t offset,
1227                              int whence);
1228 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1229                               files_struct *fromfsp, const DATA_BLOB *header,
1230                               off_t offset, size_t count);
1231 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1232                               files_struct *tofsp, off_t offset,
1233                               size_t count);
1234 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1235                         const struct smb_filename *smb_fname_src,
1236                         const struct smb_filename *smb_fname_dst);
1237
1238 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
1239                                            TALLOC_CTX *mem_ctx,
1240                                            struct tevent_context *ev,
1241                                            struct files_struct *fsp);
1242 int SMB_VFS_FSYNC_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1243
1244 int smb_vfs_fsync_sync(files_struct *fsp);
1245 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1246                       struct smb_filename *smb_fname);
1247 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1248                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
1249 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1250                        struct smb_filename *smb_filename);
1251 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1252                                      struct files_struct *fsp,
1253                                      const SMB_STRUCT_STAT *sbuf);
1254 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1255                         const struct smb_filename *smb_fname);
1256 int smb_vfs_call_chmod(struct vfs_handle_struct *handle,
1257                         const struct smb_filename *smb_fname,
1258                         mode_t mode);
1259 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1260                         struct files_struct *fsp, mode_t mode);
1261 int smb_vfs_call_chown(struct vfs_handle_struct *handle,
1262                         const struct smb_filename *smb_fname,
1263                         uid_t uid,
1264                         gid_t gid);
1265 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1266                         struct files_struct *fsp, uid_t uid, gid_t gid);
1267 int smb_vfs_call_lchown(struct vfs_handle_struct *handle,
1268                         const struct smb_filename *smb_fname,
1269                         uid_t uid,
1270                         gid_t gid);
1271 int smb_vfs_call_chdir(struct vfs_handle_struct *handle,
1272                         const struct smb_filename *smb_fname);
1273 struct smb_filename *smb_vfs_call_getwd(struct vfs_handle_struct *handle,
1274                                 TALLOC_CTX *ctx);
1275 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1276                         const struct smb_filename *smb_fname,
1277                         struct smb_file_time *ft);
1278 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1279                            struct files_struct *fsp, off_t offset);
1280 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1281                            struct files_struct *fsp,
1282                            uint32_t mode,
1283                            off_t offset,
1284                            off_t len);
1285 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
1286                        struct files_struct *fsp, int op, off_t offset,
1287                        off_t count, int type);
1288 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1289                               struct files_struct *fsp, uint32_t share_mode,
1290                               uint32_t access_mask);
1291 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1292                                 struct files_struct *fsp, int leasetype);
1293 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
1294                           struct files_struct *fsp, off_t *poffset,
1295                           off_t *pcount, int *ptype, pid_t *ppid);
1296 int smb_vfs_call_symlink(struct vfs_handle_struct *handle,
1297                         const char *link_contents,
1298                         const struct smb_filename *new_smb_fname);
1299 int smb_vfs_call_readlink(struct vfs_handle_struct *handle,
1300                         const struct smb_filename *smb_fname,
1301                         char *buf,
1302                         size_t bufsiz);
1303 int smb_vfs_call_link(struct vfs_handle_struct *handle,
1304                         const struct smb_filename *old_smb_fname,
1305                         const struct smb_filename *new_smb_fname);
1306 int smb_vfs_call_mknod(struct vfs_handle_struct *handle,
1307                         const struct smb_filename *smb_fname,
1308                         mode_t mode,
1309                         SMB_DEV_T dev);
1310 struct smb_filename *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1311                         TALLOC_CTX *ctx,
1312                         const struct smb_filename *smb_fname);
1313 int smb_vfs_call_chflags(struct vfs_handle_struct *handle,
1314                         const struct smb_filename *smb_fname,
1315                         unsigned int flags);
1316 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1317                                            const SMB_STRUCT_STAT *sbuf);
1318 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1319                                  struct files_struct *fsp,
1320                                  const struct smb_filename *smb_fname,
1321                                  TALLOC_CTX *mem_ctx,
1322                                  unsigned int *num_streams,
1323                                  struct stream_struct **streams);
1324 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1325                                    const char *path, const char *name,
1326                                    TALLOC_CTX *mem_ctx, char **found_name);
1327 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1328                                      const struct smb_filename *smb_fname);
1329 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
1330                                        struct byte_range_lock *br_lck,
1331                                        struct lock_struct *plock,
1332                                        bool blocking_lock);
1333 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
1334                                      struct messaging_context *msg_ctx,
1335                                      struct byte_range_lock *br_lck,
1336                                      const struct lock_struct *plock);
1337 bool smb_vfs_call_brl_cancel_windows(struct vfs_handle_struct *handle,
1338                                      struct byte_range_lock *br_lck,
1339                                      struct lock_struct *plock);
1340 bool smb_vfs_call_strict_lock_check(struct vfs_handle_struct *handle,
1341                                     struct files_struct *fsp,
1342                                     struct lock_struct *plock);
1343 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1344                                      const char *name,
1345                                      enum vfs_translate_direction direction,
1346                                      TALLOC_CTX *mem_ctx,
1347                                      char **mapped_name);
1348 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
1349                             struct files_struct *fsp,
1350                             TALLOC_CTX *ctx,
1351                             uint32_t function,
1352                             uint16_t req_flags,
1353                             const uint8_t *_in_data,
1354                             uint32_t in_len,
1355                             uint8_t **_out_data,
1356                             uint32_t max_out_len,
1357                             uint32_t *out_len);
1358 NTSTATUS smb_vfs_call_get_dos_attributes(struct vfs_handle_struct *handle,
1359                                          struct smb_filename *smb_fname,
1360                                          uint32_t *dosmode);
1361 NTSTATUS smb_vfs_call_fget_dos_attributes(struct vfs_handle_struct *handle,
1362                                           struct files_struct *fsp,
1363                                           uint32_t *dosmode);
1364 NTSTATUS smb_vfs_call_set_dos_attributes(struct vfs_handle_struct *handle,
1365                                          const struct smb_filename *smb_fname,
1366                                          uint32_t dosmode);
1367 NTSTATUS smb_vfs_call_fset_dos_attributes(struct vfs_handle_struct *handle,
1368                                           struct files_struct *fsp,
1369                                           uint32_t dosmode);
1370 struct tevent_req *smb_vfs_call_get_dos_attributes_send(
1371                         TALLOC_CTX *mem_ctx,
1372                         struct tevent_context *ev,
1373                         struct vfs_handle_struct *handle,
1374                         files_struct *dir_fsp,
1375                         struct smb_filename *smb_fname);
1376 NTSTATUS smb_vfs_call_get_dos_attributes_recv(
1377                         struct tevent_req *req,
1378                         struct vfs_aio_state *aio_state,
1379                         uint32_t *dosmode);
1380 struct tevent_req *smb_vfs_call_offload_read_send(
1381         TALLOC_CTX *mem_ctx,
1382         struct tevent_context *ev,
1383         struct vfs_handle_struct *handle,
1384         struct files_struct *fsp,
1385         uint32_t fsctl,
1386         uint32_t ttl,
1387         off_t offset,
1388         size_t to_copy);
1389 NTSTATUS smb_vfs_call_offload_read_recv(struct tevent_req *req,
1390                                         struct vfs_handle_struct *handle,
1391                                         TALLOC_CTX *mem_ctx,
1392                                         DATA_BLOB *token_blob);
1393 struct tevent_req *smb_vfs_call_offload_write_send(struct vfs_handle_struct *handle,
1394                                                    TALLOC_CTX *mem_ctx,
1395                                                    struct tevent_context *ev,
1396                                                    uint32_t fsctl,
1397                                                    DATA_BLOB *token,
1398                                                    off_t transfer_offset,
1399                                                    struct files_struct *dest_fsp,
1400                                                    off_t dest_off,
1401                                                    off_t num);
1402 NTSTATUS smb_vfs_call_offload_write_recv(struct vfs_handle_struct *handle,
1403                                          struct tevent_req *req,
1404                                          off_t *copied);
1405 NTSTATUS smb_vfs_call_get_compression(struct vfs_handle_struct *handle,
1406                                       TALLOC_CTX *mem_ctx,
1407                                       struct files_struct *fsp,
1408                                       struct smb_filename *smb_fname,
1409                                       uint16_t *_compression_fmt);
1410 NTSTATUS smb_vfs_call_set_compression(struct vfs_handle_struct *handle,
1411                                       TALLOC_CTX *mem_ctx,
1412                                       struct files_struct *fsp,
1413                                       uint16_t compression_fmt);
1414 NTSTATUS smb_vfs_call_snap_check_path(vfs_handle_struct *handle,
1415                                       TALLOC_CTX *mem_ctx,
1416                                       const char *service_path,
1417                                       char **base_volume);
1418 NTSTATUS smb_vfs_call_snap_create(struct vfs_handle_struct *handle,
1419                                   TALLOC_CTX *mem_ctx,
1420                                   const char *base_volume,
1421                                   time_t *tstamp,
1422                                   bool rw,
1423                                   char **base_path,
1424                                   char **snap_path);
1425 NTSTATUS smb_vfs_call_snap_delete(struct vfs_handle_struct *handle,
1426                                   TALLOC_CTX *mem_ctx,
1427                                   char *base_path,
1428                                   char *snap_path);
1429 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1430                                   struct files_struct *fsp,
1431                                   uint32_t security_info,
1432                                   TALLOC_CTX *mem_ctx,
1433                                   struct security_descriptor **ppdesc);
1434 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1435                                  const struct smb_filename *smb_fname,
1436                                  uint32_t security_info,
1437                                  TALLOC_CTX *mem_ctx,
1438                                  struct security_descriptor **ppdesc);
1439 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1440                                   struct files_struct *fsp,
1441                                   uint32_t security_info_sent,
1442                                   const struct security_descriptor *psd);
1443 NTSTATUS smb_vfs_call_audit_file(struct vfs_handle_struct *handle,
1444                                  struct smb_filename *file,
1445                                  struct security_acl *sacl,
1446                                  uint32_t access_requested,
1447                                  uint32_t access_denied);
1448 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle,
1449                                 const struct smb_filename *file,
1450                                 mode_t mode);
1451 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1452                                         const struct smb_filename *smb_fname,
1453                                         SMB_ACL_TYPE_T type,
1454                                         TALLOC_CTX *mem_ctx);
1455 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1456                                       struct files_struct *fsp,
1457                                       TALLOC_CTX *mem_ctx);
1458 int smb_vfs_call_sys_acl_blob_get_file(struct vfs_handle_struct *handle,
1459                                        const struct smb_filename *smb_fname,
1460                                        TALLOC_CTX *mem_ctx,
1461                                        char **blob_description,
1462                                        DATA_BLOB *blob);
1463 int smb_vfs_call_sys_acl_blob_get_fd(struct vfs_handle_struct *handle,
1464                                      struct files_struct *fsp,  
1465                                      TALLOC_CTX *mem_ctx,
1466                                      char **blob_description,
1467                                      DATA_BLOB *blob);
1468 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1469                                 const struct smb_filename *smb_fname,
1470                                 SMB_ACL_TYPE_T acltype,
1471                                 SMB_ACL_T theacl);
1472 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1473                                 struct files_struct *fsp, SMB_ACL_T theacl);
1474 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1475                                 const struct smb_filename *smb_fname);
1476 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1477                                 const struct smb_filename *smb_fname,
1478                                 const char *name,
1479                                 void *value,
1480                                 size_t size);
1481 struct tevent_req *smb_vfs_call_getxattrat_send(
1482                         TALLOC_CTX *mem_ctx,
1483                         struct tevent_context *ev,
1484                         struct vfs_handle_struct *handle,
1485                         files_struct *dir_fsp,
1486                         const struct smb_filename *smb_fname,
1487                         const char *xattr_name,
1488                         size_t alloc_hint);
1489 ssize_t smb_vfs_call_getxattrat_recv(struct tevent_req *req,
1490                                      struct vfs_aio_state *aio_state,
1491                                      TALLOC_CTX *mem_ctx,
1492                                      uint8_t **xattr_value);
1493 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1494                                struct files_struct *fsp, const char *name,
1495                                void *value, size_t size);
1496 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1497                                 const struct smb_filename *smb_fname,
1498                                 char *list,
1499                                 size_t size);
1500 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1501                                 struct files_struct *fsp, char *list,
1502                                 size_t size);
1503 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1504                                 const struct smb_filename *smb_fname,
1505                                 const char *name);
1506 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1507                               struct files_struct *fsp, const char *name);
1508 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle,
1509                                 const struct smb_filename *smb_fname,
1510                                 const char *name,
1511                                 const void *value,
1512                                 size_t size,
1513                                 int flags);
1514 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1515                            const char *name, const void *value, size_t size,
1516                            int flags);
1517 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1518                            struct files_struct *fsp, const char *name,
1519                            const void *value, size_t size, int flags);
1520 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1521                             struct files_struct *fsp);
1522 NTSTATUS smb_vfs_call_durable_cookie(struct vfs_handle_struct *handle,
1523                                      struct files_struct *fsp,
1524                                      TALLOC_CTX *mem_ctx,
1525                                      DATA_BLOB *cookie);
1526 NTSTATUS smb_vfs_call_durable_disconnect(struct vfs_handle_struct *handle,
1527                                          struct files_struct *fsp,
1528                                          const DATA_BLOB old_cookie,
1529                                          TALLOC_CTX *mem_ctx,
1530                                          DATA_BLOB *new_cookie);
1531 NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
1532                                         struct smb_request *smb1req,
1533                                         struct smbXsrv_open *op,
1534                                         const DATA_BLOB old_cookie,
1535                                         TALLOC_CTX *mem_ctx,
1536                                         struct files_struct **fsp,
1537                                         DATA_BLOB *new_cookie);
1538 NTSTATUS smb_vfs_call_readdir_attr(struct vfs_handle_struct *handle,
1539                                    const struct smb_filename *fname,
1540                                    TALLOC_CTX *mem_ctx,
1541                                    struct readdir_attr_data **attr_data);
1542
1543 NTSTATUS smb_register_vfs(int version, const char *name,
1544                           const struct vfs_fn_pointers *fns);
1545 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
1546                                    files_struct *fsp, size_t ext_size,
1547                                    void (*destroy_fn)(void *p_data));
1548 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1549 void vfs_remove_all_fsp_extensions(struct files_struct *fsp);
1550 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1551 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1552
1553 void smb_vfs_assert_all_fns(const struct vfs_fn_pointers* fns,
1554                             const char *module);
1555
1556 /*
1557  * Notice the "Design of the smb_vfs_ev_glue infrastructure"
1558  * comment in source3/smbd/vfs.c!
1559  *
1560  * This explains smb_vfs_ev_glue infrastructure in detail.
1561  */
1562 struct tevent_context *smb_vfs_ev_glue_ev_ctx(const struct smb_vfs_ev_glue *evg);
1563 struct pthreadpool_tevent *smb_vfs_ev_glue_tp_fd_safe(const struct smb_vfs_ev_glue *evg);
1564 struct pthreadpool_tevent *smb_vfs_ev_glue_tp_path_safe(const struct smb_vfs_ev_glue *evg);
1565 struct pthreadpool_tevent *smb_vfs_ev_glue_tp_chdir_safe(const struct smb_vfs_ev_glue *evg);
1566 const struct smb_vfs_ev_glue *smb_vfs_ev_glue_get_root_glue(const struct smb_vfs_ev_glue *evg);
1567 struct smb_vfs_ev_glue *smb_vfs_ev_glue_create(TALLOC_CTX *mem_ctx,
1568                                 struct tevent_context *user_ev,
1569                                 struct pthreadpool_tevent *user_tp_fd_safe,
1570                                 struct pthreadpool_tevent *user_tp_path_safe,
1571                                 struct pthreadpool_tevent *user_tp_chdir_safe,
1572                                 struct tevent_context *root_ev,
1573                                 struct pthreadpool_tevent *root_tp_fd_safe,
1574                                 struct pthreadpool_tevent *root_tp_path_safe,
1575                                 struct pthreadpool_tevent *root_tp_chdir_safe);
1576 struct smb_vfs_ev_glue *smb_vfs_ev_glue_create_switch(
1577                         TALLOC_CTX *mem_ctx,
1578                         const struct smb_vfs_ev_glue *return_evg,
1579                         const struct smb_vfs_ev_glue *run_evg);
1580
1581 /*
1582  * Helper functions from source3/modules/vfs_not_implemented.c
1583  */
1584 int vfs_not_implemented_connect(
1585                         vfs_handle_struct *handle,
1586                         const char *service,
1587                         const char *user);
1588 void vfs_not_implemented_disconnect(vfs_handle_struct *handle);
1589 uint64_t vfs_not_implemented_disk_free(vfs_handle_struct *handle,
1590                                 const struct smb_filename *smb_fname,
1591                                 uint64_t *bsize,
1592                                 uint64_t *dfree,
1593                                 uint64_t *dsize);
1594 int vfs_not_implemented_get_quota(vfs_handle_struct *handle,
1595                                 const struct smb_filename *smb_fname,
1596                                 enum SMB_QUOTA_TYPE qtype,
1597                                 unid_t id,
1598                                 SMB_DISK_QUOTA *dq);
1599 int vfs_not_implemented_set_quota(vfs_handle_struct *handle,
1600                                   enum SMB_QUOTA_TYPE qtype,
1601                                   unid_t id, SMB_DISK_QUOTA *dq);
1602 int vfs_not_implemented_get_shadow_copy_data(vfs_handle_struct *handle,
1603                                 files_struct *fsp,
1604                                 struct shadow_copy_data *shadow_copy_data,
1605                                 bool labels);
1606 int vfs_not_implemented_statvfs(struct vfs_handle_struct *handle,
1607                                 const struct smb_filename *smb_fname,
1608                                 struct vfs_statvfs_struct *statbuf);
1609 uint32_t vfs_not_implemented_fs_capabilities(struct vfs_handle_struct *handle,
1610                                 enum timestamp_set_resolution *p_ts_res);
1611 NTSTATUS vfs_not_implemented_get_dfs_referrals(struct vfs_handle_struct *handle,
1612                                                struct dfs_GetDFSReferral *r);
1613 DIR *vfs_not_implemented_opendir(vfs_handle_struct *handle,
1614                         const struct smb_filename *smb_fname,
1615                         const char *mask,
1616                         uint32_t attr);
1617 NTSTATUS vfs_not_implemented_snap_check_path(struct vfs_handle_struct *handle,
1618                                 TALLOC_CTX *mem_ctx,
1619                                 const char *service_path,
1620                                 char **base_volume);
1621 NTSTATUS vfs_not_implemented_snap_create(struct vfs_handle_struct *handle,
1622                                          TALLOC_CTX *mem_ctx,
1623                                          const char *base_volume,
1624                                          time_t *tstamp,
1625                                          bool rw,
1626                                          char **base_path,
1627                                          char **snap_path);
1628 NTSTATUS vfs_not_implemented_snap_delete(struct vfs_handle_struct *handle,
1629                                          TALLOC_CTX *mem_ctx,
1630                                          char *base_path,
1631                                          char *snap_path);
1632 DIR *vfs_not_implemented_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
1633                                    const char *mask, uint32_t attr);
1634 struct dirent *vfs_not_implemented_readdir(vfs_handle_struct *handle,
1635                                            DIR *dirp, SMB_STRUCT_STAT *sbuf);
1636 void vfs_not_implemented_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset);
1637 long vfs_not_implemented_telldir(vfs_handle_struct *handle, DIR *dirp);
1638 void vfs_not_implemented_rewind_dir(vfs_handle_struct *handle, DIR *dirp);
1639 int vfs_not_implemented_mkdir(vfs_handle_struct *handle,
1640                 const struct smb_filename *smb_fname,
1641                 mode_t mode);
1642 int vfs_not_implemented_rmdir(vfs_handle_struct *handle,
1643                 const struct smb_filename *smb_fname);
1644 int vfs_not_implemented_closedir(vfs_handle_struct *handle, DIR *dir);
1645 int vfs_not_implemented_open(vfs_handle_struct *handle,
1646                              struct smb_filename *smb_fname,
1647                              files_struct *fsp, int flags, mode_t mode);
1648 NTSTATUS vfs_not_implemented_create_file(struct vfs_handle_struct *handle,
1649                                 struct smb_request *req,
1650                                 uint16_t root_dir_fid,
1651                                 struct smb_filename *smb_fname,
1652                                 uint32_t access_mask,
1653                                 uint32_t share_access,
1654                                 uint32_t create_disposition,
1655                                 uint32_t create_options,
1656                                 uint32_t file_attributes,
1657                                 uint32_t oplock_request,
1658                                 struct smb2_lease *lease,
1659                                 uint64_t allocation_size,
1660                                 uint32_t private_flags,
1661                                 struct security_descriptor *sd,
1662                                 struct ea_list *ea_list,
1663                                 files_struct **result, int *pinfo,
1664                                 const struct smb2_create_blobs *in_context_blobs,
1665                                 struct smb2_create_blobs *out_context_blobs);
1666 int vfs_not_implemented_close_fn(vfs_handle_struct *handle, files_struct *fsp);
1667 ssize_t vfs_not_implemented_pread(vfs_handle_struct *handle, files_struct *fsp,
1668                                   void *data, size_t n, off_t offset);
1669 struct tevent_req *vfs_not_implemented_pread_send(struct vfs_handle_struct *handle,
1670                                                   TALLOC_CTX *mem_ctx,
1671                                                   struct tevent_context *ev,
1672                                                   struct files_struct *fsp,
1673                                                   void *data, size_t n, off_t offset);
1674 ssize_t vfs_not_implemented_pread_recv(struct tevent_req *req,
1675                                        struct vfs_aio_state *vfs_aio_state);
1676 ssize_t vfs_not_implemented_pwrite(vfs_handle_struct *handle, files_struct *fsp,
1677                                    const void *data, size_t n, off_t offset);
1678 struct tevent_req *vfs_not_implemented_pwrite_send(struct vfs_handle_struct *handle,
1679                                                    TALLOC_CTX *mem_ctx,
1680                                                    struct tevent_context *ev,
1681                                                    struct files_struct *fsp,
1682                                                    const void *data,
1683                                                    size_t n, off_t offset);
1684 ssize_t vfs_not_implemented_pwrite_recv(struct tevent_req *req,
1685                                 struct vfs_aio_state *vfs_aio_state);
1686 off_t vfs_not_implemented_lseek(vfs_handle_struct *handle, files_struct *fsp,
1687                         off_t offset, int whence);
1688 ssize_t vfs_not_implemented_sendfile(vfs_handle_struct *handle, int tofd,
1689                                      files_struct *fromfsp, const DATA_BLOB *hdr,
1690                                      off_t offset, size_t n);
1691 ssize_t vfs_not_implemented_recvfile(vfs_handle_struct *handle, int fromfd,
1692                                      files_struct *tofsp, off_t offset, size_t n);
1693 int vfs_not_implemented_rename(vfs_handle_struct *handle,
1694                                const struct smb_filename *smb_fname_src,
1695                                const struct smb_filename *smb_fname_dst);
1696 struct tevent_req *vfs_not_implemented_fsync_send(struct vfs_handle_struct *handle,
1697                                                   TALLOC_CTX *mem_ctx,
1698                                                   struct tevent_context *ev,
1699                                                   struct files_struct *fsp);
1700 int vfs_not_implemented_fsync_recv(struct tevent_req *req,
1701                                    struct vfs_aio_state *vfs_aio_state);
1702 int vfs_not_implemented_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname);
1703 int vfs_not_implemented_fstat(vfs_handle_struct *handle, files_struct *fsp,
1704                         SMB_STRUCT_STAT *sbuf);
1705 int vfs_not_implemented_lstat(vfs_handle_struct *handle,
1706                               struct smb_filename *smb_fname);
1707 uint64_t vfs_not_implemented_get_alloc_size(struct vfs_handle_struct *handle,
1708                                             struct files_struct *fsp,
1709                                             const SMB_STRUCT_STAT *sbuf);
1710 int vfs_not_implemented_unlink(vfs_handle_struct *handle,
1711                                const struct smb_filename *smb_fname);
1712 int vfs_not_implemented_chmod(vfs_handle_struct *handle,
1713                               const struct smb_filename *smb_fname,
1714                               mode_t mode);
1715 int vfs_not_implemented_fchmod(vfs_handle_struct *handle, files_struct *fsp,
1716                                mode_t mode);
1717 int vfs_not_implemented_chown(vfs_handle_struct *handle,
1718                               const struct smb_filename *smb_fname,
1719                               uid_t uid,
1720                               gid_t gid);
1721 int vfs_not_implemented_fchown(vfs_handle_struct *handle, files_struct *fsp,
1722                                uid_t uid, gid_t gid);
1723 int vfs_not_implemented_lchown(vfs_handle_struct *handle,
1724                                const struct smb_filename *smb_fname,
1725                                uid_t uid,
1726                                gid_t gid);
1727 int vfs_not_implemented_chdir(vfs_handle_struct *handle,
1728                               const struct smb_filename *smb_fname);
1729 struct smb_filename *vfs_not_implemented_getwd(vfs_handle_struct *handle,
1730                                                TALLOC_CTX *ctx);
1731 int vfs_not_implemented_ntimes(vfs_handle_struct *handle,
1732                                const struct smb_filename *smb_fname,
1733                                struct smb_file_time *ft);
1734 int vfs_not_implemented_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1735                                   off_t offset);
1736 int vfs_not_implemented_fallocate(vfs_handle_struct *handle, files_struct *fsp,
1737                                   uint32_t mode, off_t offset, off_t len);
1738 bool vfs_not_implemented_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
1739                               off_t offset, off_t count, int type);
1740 int vfs_not_implemented_kernel_flock(struct vfs_handle_struct *handle,
1741                                      struct files_struct *fsp,
1742                                      uint32_t share_mode, uint32_t access_mask);
1743 int vfs_not_implemented_linux_setlease(struct vfs_handle_struct *handle,
1744                                        struct files_struct *fsp, int leasetype);
1745 bool vfs_not_implemented_getlock(vfs_handle_struct *handle, files_struct *fsp,
1746                                  off_t *poffset, off_t *pcount, int *ptype,
1747                                  pid_t *ppid);
1748 int vfs_not_implemented_symlink(vfs_handle_struct *handle,
1749                                 const char *link_contents,
1750                                 const struct smb_filename *new_smb_fname);
1751 int vfs_not_implemented_vfs_readlink(vfs_handle_struct *handle,
1752                                      const struct smb_filename *smb_fname,
1753                                      char *buf,
1754                                      size_t bufsiz);
1755 int vfs_not_implemented_link(vfs_handle_struct *handle,
1756                              const struct smb_filename *old_smb_fname,
1757                              const struct smb_filename *new_smb_fname);
1758 int vfs_not_implemented_mknod(vfs_handle_struct *handle,
1759                               const struct smb_filename *smb_fname,
1760                               mode_t mode,
1761                               SMB_DEV_T dev);
1762 struct smb_filename *vfs_not_implemented_realpath(vfs_handle_struct *handle,
1763                                                   TALLOC_CTX *ctx,
1764                                                   const struct smb_filename *smb_fname);
1765 int vfs_not_implemented_chflags(vfs_handle_struct *handle,
1766                                 const struct smb_filename *smb_fname,
1767                                 uint flags);
1768 struct file_id vfs_not_implemented_file_id_create(vfs_handle_struct *handle,
1769                                                   const SMB_STRUCT_STAT *sbuf);
1770 struct tevent_req *vfs_not_implemented_offload_read_send(
1771                         TALLOC_CTX *mem_ctx,
1772                         struct tevent_context *ev,
1773                         struct vfs_handle_struct *handle,
1774                         struct files_struct *fsp,
1775                         uint32_t fsctl,
1776                         uint32_t ttl,
1777                         off_t offset,
1778                         size_t to_copy);
1779 NTSTATUS vfs_not_implemented_offload_read_recv(struct tevent_req *req,
1780                                        struct vfs_handle_struct *handle,
1781                                        TALLOC_CTX *mem_ctx,
1782                                        DATA_BLOB *_token_blob);
1783 struct tevent_req *vfs_not_implemented_offload_write_send(
1784                         struct vfs_handle_struct *handle,
1785                         TALLOC_CTX *mem_ctx,
1786                         struct tevent_context *ev,
1787                         uint32_t fsctl,
1788                         DATA_BLOB *token,
1789                         off_t transfer_offset,
1790                         struct files_struct *dest_fsp,
1791                         off_t dest_off,
1792                         off_t num);
1793 NTSTATUS vfs_not_implemented_offload_write_recv(struct vfs_handle_struct *handle,
1794                                                 struct tevent_req *req,
1795                                                 off_t *copied);
1796 NTSTATUS vfs_not_implemented_get_compression(struct vfs_handle_struct *handle,
1797                                              TALLOC_CTX *mem_ctx,
1798                                              struct files_struct *fsp,
1799                                              struct smb_filename *smb_fname,
1800                                              uint16_t *_compression_fmt);
1801 NTSTATUS vfs_not_implemented_set_compression(struct vfs_handle_struct *handle,
1802                                              TALLOC_CTX *mem_ctx,
1803                                              struct files_struct *fsp,
1804                                              uint16_t compression_fmt);
1805 NTSTATUS vfs_not_implemented_streaminfo(struct vfs_handle_struct *handle,
1806                                         struct files_struct *fsp,
1807                                         const struct smb_filename *smb_fname,
1808                                         TALLOC_CTX *mem_ctx,
1809                                         unsigned int *num_streams,
1810                                         struct stream_struct **streams);
1811 int vfs_not_implemented_get_real_filename(struct vfs_handle_struct *handle,
1812                                           const char *path,
1813                                           const char *name,
1814                                           TALLOC_CTX *mem_ctx,
1815                                           char **found_name);
1816 const char *vfs_not_implemented_connectpath(struct vfs_handle_struct *handle,
1817                                             const struct smb_filename *smb_fname);
1818 NTSTATUS vfs_not_implemented_brl_lock_windows(struct vfs_handle_struct *handle,
1819                                               struct byte_range_lock *br_lck,
1820                                               struct lock_struct *plock,
1821                                               bool blocking_lock);
1822 bool vfs_not_implemented_brl_unlock_windows(struct vfs_handle_struct *handle,
1823                                             struct messaging_context *msg_ctx,
1824                                             struct byte_range_lock *br_lck,
1825                                             const struct lock_struct *plock);
1826 bool vfs_not_implemented_brl_cancel_windows(struct vfs_handle_struct *handle,
1827                                             struct byte_range_lock *br_lck,
1828                                             struct lock_struct *plock);
1829 bool vfs_not_implemented_strict_lock_check(struct vfs_handle_struct *handle,
1830                                            struct files_struct *fsp,
1831                                            struct lock_struct *plock);
1832 NTSTATUS vfs_not_implemented_translate_name(struct vfs_handle_struct *handle,
1833                                             const char *mapped_name,
1834                                             enum vfs_translate_direction direction,
1835                                             TALLOC_CTX *mem_ctx, char **pmapped_name);
1836 NTSTATUS vfs_not_implemented_fsctl(struct vfs_handle_struct *handle,
1837                                    struct files_struct *fsp,
1838                                    TALLOC_CTX *ctx,
1839                                    uint32_t function,
1840                                    uint16_t req_flags,  /* Needed for UNICODE ... */
1841                                    const uint8_t *_in_data,
1842                                    uint32_t in_len,
1843                                    uint8_t **_out_data,
1844                                    uint32_t max_out_len, uint32_t *out_len);
1845 NTSTATUS vfs_not_implemented_readdir_attr(struct vfs_handle_struct *handle,
1846                                           const struct smb_filename *fname,
1847                                           TALLOC_CTX *mem_ctx,
1848                                           struct readdir_attr_data **pattr_data);
1849 NTSTATUS vfs_not_implemented_get_dos_attributes(struct vfs_handle_struct *handle,
1850                                                 struct smb_filename *smb_fname,
1851                                                 uint32_t *dosmode);
1852 struct tevent_req *vfs_not_implemented_get_dos_attributes_send(
1853                         TALLOC_CTX *mem_ctx,
1854                         struct tevent_context *ev,
1855                         struct vfs_handle_struct *handle,
1856                         files_struct *dir_fsp,
1857                         struct smb_filename *smb_fname);
1858 NTSTATUS vfs_not_implemented_get_dos_attributes_recv(
1859                         struct tevent_req *req,
1860                         struct vfs_aio_state *aio_state,
1861                         uint32_t *dosmode);
1862 NTSTATUS vfs_not_implemented_fget_dos_attributes(struct vfs_handle_struct *handle,
1863                                                  struct files_struct *fsp,
1864                                                  uint32_t *dosmode);
1865 NTSTATUS vfs_not_implemented_set_dos_attributes(struct vfs_handle_struct *handle,
1866                                                 const struct smb_filename *smb_fname,
1867                                                 uint32_t dosmode);
1868 NTSTATUS vfs_not_implemented_fset_dos_attributes(struct vfs_handle_struct *handle,
1869                                                  struct files_struct *fsp,
1870                                                  uint32_t dosmode);
1871 NTSTATUS vfs_not_implemented_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1872                                          uint32_t security_info,
1873                                          TALLOC_CTX *mem_ctx,
1874                                          struct security_descriptor **ppdesc);
1875 NTSTATUS vfs_not_implemented_get_nt_acl(vfs_handle_struct *handle,
1876                                         const struct smb_filename *smb_fname,
1877                                         uint32_t security_info,
1878                                         TALLOC_CTX *mem_ctx,
1879                                         struct security_descriptor **ppdesc);
1880 NTSTATUS vfs_not_implemented_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1881                                          uint32_t security_info_sent,
1882                                          const struct security_descriptor *psd);
1883 SMB_ACL_T vfs_not_implemented_sys_acl_get_file(vfs_handle_struct *handle,
1884                                                const struct smb_filename *smb_fname,
1885                                                SMB_ACL_TYPE_T type,
1886                                                TALLOC_CTX *mem_ctx);
1887 SMB_ACL_T vfs_not_implemented_sys_acl_get_fd(vfs_handle_struct *handle,
1888                                              files_struct *fsp, TALLOC_CTX *mem_ctx);
1889 int vfs_not_implemented_sys_acl_blob_get_file(vfs_handle_struct *handle,
1890                                 const struct smb_filename *smb_fname,
1891                                 TALLOC_CTX *mem_ctx,
1892                                 char **blob_description,
1893                                 DATA_BLOB *blob);
1894 int vfs_not_implemented_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1895                                 files_struct *fsp, TALLOC_CTX *mem_ctx,
1896                                 char **blob_description, DATA_BLOB *blob);
1897 int vfs_not_implemented_sys_acl_set_file(vfs_handle_struct *handle,
1898                                 const struct smb_filename *smb_fname,
1899                                 SMB_ACL_TYPE_T acltype,
1900                                 SMB_ACL_T theacl);
1901 int vfs_not_implemented_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1902                                        SMB_ACL_T theacl);
1903 int vfs_not_implemented_sys_acl_delete_def_file(vfs_handle_struct *handle,
1904                                         const struct smb_filename *smb_fname);
1905 ssize_t vfs_not_implemented_getxattr(vfs_handle_struct *handle,
1906                                 const struct smb_filename *smb_fname,
1907                                 const char *name,
1908                                 void *value,
1909                                 size_t size);
1910 struct tevent_req *vfs_not_implemented_getxattrat_send(
1911                         TALLOC_CTX *mem_ctx,
1912                         struct tevent_context *ev,
1913                         struct vfs_handle_struct *handle,
1914                         files_struct *dir_fsp,
1915                         const struct smb_filename *smb_fname,
1916                         const char *xattr_name,
1917                         size_t alloc_hint);
1918 ssize_t vfs_not_implemented_getxattrat_recv(struct tevent_req *req,
1919                                     struct vfs_aio_state *aio_state,
1920                                     TALLOC_CTX *mem_ctx,
1921                                     uint8_t **xattr_value);
1922 ssize_t vfs_not_implemented_fgetxattr(vfs_handle_struct *handle,
1923                               struct files_struct *fsp, const char *name,
1924                               void *value, size_t size);
1925 ssize_t vfs_not_implemented_listxattr(vfs_handle_struct *handle,
1926                                       const struct smb_filename *smb_fname,
1927                                       char *list,
1928                                       size_t size);
1929 ssize_t vfs_not_implemented_flistxattr(vfs_handle_struct *handle,
1930                                        struct files_struct *fsp, char *list,
1931                                        size_t size);
1932 int vfs_not_implemented_removexattr(vfs_handle_struct *handle,
1933                                     const struct smb_filename *smb_fname,
1934                                     const char *name);
1935 int vfs_not_implemented_fremovexattr(vfs_handle_struct *handle,
1936                                      struct files_struct *fsp, const char *name);
1937 int vfs_not_implemented_setxattr(vfs_handle_struct *handle,
1938                                  const struct smb_filename *smb_fname,
1939                                  const char *name,
1940                                  const void *value,
1941                                  size_t size,
1942                                  int flags);
1943 int vfs_not_implemented_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1944                                   const char *name, const void *value, size_t size,
1945                                   int flags);
1946 bool vfs_not_implemented_aio_force(struct vfs_handle_struct *handle,
1947                                    struct files_struct *fsp);
1948 NTSTATUS vfs_not_implemented_audit_file(struct vfs_handle_struct *handle,
1949                                         struct smb_filename *file,
1950                                         struct security_acl *sacl,
1951                                         uint32_t access_requested,
1952                                         uint32_t access_denied);
1953 NTSTATUS vfs_not_implemented_durable_cookie(struct vfs_handle_struct *handle,
1954                                             struct files_struct *fsp,
1955                                             TALLOC_CTX *mem_ctx,
1956                                             DATA_BLOB *cookie);
1957 NTSTATUS vfs_not_implemented_durable_disconnect(struct vfs_handle_struct *handle,
1958                                                 struct files_struct *fsp,
1959                                                 const DATA_BLOB old_cookie,
1960                                                 TALLOC_CTX *mem_ctx,
1961                                                 DATA_BLOB *new_cookie);
1962 NTSTATUS vfs_not_implemented_durable_reconnect(struct vfs_handle_struct *handle,
1963                                                struct smb_request *smb1req,
1964                                                struct smbXsrv_open *op,
1965                                                const DATA_BLOB old_cookie,
1966                                                TALLOC_CTX *mem_ctx,
1967                                                struct files_struct **fsp,
1968                                                DATA_BLOB *new_cookie);
1969 #endif /* _VFS_H */