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