s3:smbd: let SMB_VFS_GETXATTRAT_SEND() do explicit impersonation
[kamenim/samba-autobuild/.git] / source3 / include / vfs.h
1 /* 
2    Unix SMB/CIFS implementation.
3    VFS structures and parameters
4    Copyright (C) Jeremy Allison                         1999-2005
5    Copyright (C) Tim Potter                             1999
6    Copyright (C) Alexander Bokovoy                      2002-2005
7    Copyright (C) Stefan (metze) Metzmacher              2003
8    Copyright (C) Volker Lendecke                        2009
9
10    This program is free software; you can redistribute it and/or modify
11    it under the terms of the GNU General Public License as published by
12    the Free Software Foundation; either version 3 of the License, or
13    (at your option) any later version.
14
15    This program is distributed in the hope that it will be useful,
16    but WITHOUT ANY WARRANTY; without even the implied warranty of
17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18    GNU General Public License for more details.
19
20    You should have received a copy of the GNU General Public License
21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
22
23    This work was sponsored by Optifacio Software Services, Inc.
24 */
25
26 #ifndef _VFS_H
27 #define _VFS_H
28
29 /* Avoid conflict with an AIX include file */
30
31 #ifdef vfs_ops
32 #undef vfs_ops
33 #endif
34
35 /*
36  * As we're now (thanks Andrew ! :-) using file_structs and connection
37  * structs in the vfs - then anyone writing a vfs must include includes.h...
38  */
39
40 /*
41  * This next constant specifies the version number of the VFS interface
42  * this smbd will load. Increment this if *ANY* changes are made to the
43  * vfs_ops below. JRA.
44  *
45  * If you change anything here, please also update modules/vfs_full_audit.c.
46  * VL.
47  */
48
49 /* Changed to version 2 for CIFS UNIX extensions (mknod and link added). JRA. */
50 /* Changed to version 3 for POSIX acl extensions. JRA. */
51 /* Changed to version 4 for cascaded VFS interface. Alexander Bokovoy. */
52 /* Changed to version 5 for sendfile addition. JRA. */
53 /* Changed to version 6 for the new module system, fixed cascading and quota functions. --metze */
54 /* Changed to version 7 to include the get_nt_acl info parameter. JRA. */
55 /* Changed to version 8 includes EA calls. JRA. */
56 /* Changed to version 9 to include the get_shadow_data call. --metze */
57 /* Changed to version 10 to include pread/pwrite calls. */
58 /* Changed to version 11 to include seekdir/telldir/rewinddir calls. JRA */
59 /* Changed to version 12 to add mask and attributes to opendir(). JRA 
60    Also include aio calls. JRA. */
61 /* Changed to version 13 as the internal structure of files_struct has changed. JRA */
62 /* Changed to version 14 as we had to change DIR to SMB_STRUCT_DIR. JRA */
63 /* Changed to version 15 as we added the statvfs call. JRA */
64 /* Changed to version 16 as we added the getlock call. JRA */
65 /* Changed to version 17 as we removed redundant connection_struct parameters. --jpeach */
66 /* Changed to version 18 to add fsp parameter to the open call -- jpeach 
67    Also include kernel_flock call - jmcd */
68 /* Changed to version 19, kernel change notify has been merged 
69    Also included linux setlease call - jmcd */
70 /* Changed to version 20, use ntimes call instead of utime (greater
71  * timestamp resolition. JRA. */
72 /* Changed to version21 to add chflags operation -- jpeach */
73 /* Changed to version22 to add lchown operation -- jra */
74 /* Leave at 22 - not yet released. But change set_nt_acl to return an NTSTATUS. jra. */
75 /* Leave at 22 - not yet released. Add file_id_create operation. --metze */
76 /* Leave at 22 - not yet released. Change all BOOL parameters (int) to bool. jra. */
77 /* Leave at 22 - not yet released. Added recvfile. */
78 /* Leave at 22 - not yet released. Change get_nt_acl to return NTSTATUS - vl */
79 /* Leave at 22 - not yet released. Change get_nt_acl to *not* take a
80  * files_struct. - obnox.*/
81 /* Leave at 22 - not yet released. Remove parameter fd from fget_nt_acl. - obnox */
82 /* Leave at 22 - not yet released. Remove parameter fd from gset_nt_acl. - obnox */
83 /* Leave at 22 - not yet released. Remove parameter fd from pread. - obnox */
84 /* Leave at 22 - not yet released. Remove parameter fd from pwrite. - obnox */
85 /* Leave at 22 - not yet released. Remove parameter fd from lseek. - obnox */
86 /* Leave at 22 - not yet released. Remove parameter fd from fsync. - obnox */
87 /* Leave at 22 - not yet released. Remove parameter fd from fstat. - obnox */
88 /* Leave at 22 - not yet released. Remove parameter fd from fchmod. - obnox */
89 /* Leave at 22 - not yet released. Remove parameter fd from fchown. - obnox */
90 /* Leave at 22 - not yet released. Remove parameter fd from ftruncate. - obnox */
91 /* Leave at 22 - not yet released. Remove parameter fd from lock. - obnox */
92 /* Leave at 22 - not yet released. Remove parameter fd from kernel_flock. - obnox */
93 /* Leave at 22 - not yet released. Remove parameter fd from linux_setlease. - obnox */
94 /* Leave at 22 - not yet released. Remove parameter fd from getlock. - obnox */
95 /* Leave at 22 - not yet released. Remove parameter fd from sys_acl_get_fd. - obnox */
96 /* Leave at 22 - not yet released. Remove parameter fd from fchmod_acl. - obnox */
97 /* Leave at 22 - not yet released. Remove parameter fd from sys_acl_set_fd. - obnox */
98 /* Leave at 22 - not yet released. Remove parameter fd from fgetxattr. - obnox */
99 /* Leave at 22 - not yet released. Remove parameter fd from flistxattr. - obnox */
100 /* Leave at 22 - not yet released. Remove parameter fd from fremovexattr. - obnox */
101 /* Leave at 22 - not yet released. Remove parameter fd from fsetxattr. - obnox */
102 /* Leave at 22 - not yet released. Remove parameter fd from aio_cancel. - obnox */
103 /* Leave at 22 - not yet released. Remove parameter fd from read. - obnox */
104 /* Leave at 22 - not yet released. Remove parameter fd from write. - obnox */
105 /* Leave at 22 - not yet released. Remove parameter fromfd from sendfile. - obnox */
106 /* Leave at 22 - not yet released. Remove parameter fromfd from recvfile. - obnox */
107 /* Leave at 22 - not yet released. Additional change: add operations for offline files -- ab */
108 /* Leave at 22 - not yet released. Add the streaminfo call. -- jpeach, vl */
109 /* Leave at 22 - not yet released. Remove parameter fd from close_fn. - obnox */
110 /* Changed to version 23 - remove set_nt_acl call. This can only be done via an
111    open handle. JRA. */
112 /* Changed to version 24 - make security descriptor const in fset_nt_acl. JRA. */
113 /* Changed to version 25 - Jelmer's change from SMB_BIG_UINT to uint64_t. */
114 /* Leave at 25 - not yet released. Add create_file call. -- tprouty. */
115 /* Leave at 25 - not yet released. Add create time to ntimes. -- tstecher. */
116 /* Leave at 25 - not yet released. Add get_alloc_size call. -- tprouty. */
117 /* Leave at 25 - not yet released. Add SMB_STRUCT_STAT to readdir. - sdann */
118 /* Leave at 25 - not yet released. Add init_search_op call. - sdann */
119 /* Leave at 25 - not yet released. Add locking calls. -- zkirsch. */
120 /* Leave at 25 - not yet released. Add strict locking calls. -- drichards. */
121 /* Changed to version 26 - Plumb struct smb_filename to SMB_VFS_CREATE_FILE,
122                            SMB_VFS_OPEN, SMB_VFS_STAT, SMB_VFS_LSTAT,
123                            SMB_VFS_RENAME, SMB_VFS_UNLINK, SMB_VFS_NTIMES.  */
124 /* Changed to version 27 - not yet released. Added enum timestamp_set_resolution
125  *                         return to fs_capabilities call. JRA. */
126 /* Leave at 27 - not yet released. Add translate_name VFS call to convert
127                  UNIX names to Windows supported names -- asrinivasan. */
128 /* Changed to version 28 - Add private_flags uint32_t to CREATE call. */
129 /* Leave at 28 - not yet released. Change realpath to assume NULL and return a
130                  malloc'ed path. JRA. */
131 /* Leave at 28 - not yet released. Move posix_fallocate into the VFS
132                 where it belongs. JRA. */
133 /* Leave at 28 - not yet released. Rename posix_fallocate to fallocate
134                 to split out the two possible uses. JRA. */
135 /* Leave at 28 - not yet released. Add fdopendir. JRA. */
136 /* Leave at 28 - not yet released. Rename open function to open_fn. - gd */
137 /* Leave at 28 - not yet released. Make getwd function always return malloced memory. JRA. */
138 /* Bump to version 29 - Samba 3.6.0 will ship with interface version 28. */
139 /* Leave at 29 - not yet releases. Add fsctl. Richard Sharpe */
140 /* Leave at 29 - not yet released. add SMB_VFS_GET_DFS_REFERRAL() - metze */
141 /* Leave at 29 - not yet released. Remove l{list,get,set,remove}xattr - abartlet */
142 /* Leave at 29 - not yet released. move to plain off_t - abartlet */
143 /* Leave at 29 - not yet released. Remove sys_acl functions other than set and get - abartlet */
144 /* Leave at 29 - not yet released. Added backup_intent bool to files_struct - JRA */
145 /* Leave at 29 - not yet released. Add durable handle functions - metze/obnox */
146 /* Leave at 29 - not yet released. Added sys_acl_blob_get_file and sys_acl_blob_get_fd */
147 /* Bump to version 30 - Samba 4.0.0 will ship with interface version 30 */
148 /* Leave at 30 - not yet released. Added conn->cwd to save vfs_GetWd() calls. */
149 /* Leave at 30 - not yet released. Changed sys_acl_blob_get_file interface to remove type */
150 /* Bump to version 31 - Samba 4.1.0 will ship with interface version 31 */
151 /* Leave at 31 - not yet released. Make struct vuid_cache_entry in
152                 connection_struct a pointer. */
153 /* Leave at 31 - not yet released. Add share_access to vuid_cache_entry. */
154 /* Leave at 31 - not yet released. add SMB_VFS_COPY_CHUNK() */
155 /* Leave at 31 - not yet released. Remove the unused
156                 fsp->pending_break_messages array */
157 /* Leave at 31 - not yet released. add SMB_VFS_[GET/SET]_COMPRESSION() */
158
159 /* Bump to version 32 - Samba 4.2 will ship with that. */
160 /* Version 32 - Add "lease" to CREATE_FILE operation */
161 /* Version 32 - Add "lease" to struct files_struct */
162 /* Version 32 - Add SMB_VFS_READDIR_ATTR() */
163 /* Version 32 - Add in and out create context blobs to create_file */
164 /* Version 32 - Remove unnecessary SMB_VFS_DISK_FREE() small_query parameter */
165 /* Bump to version 33 - Samba 4.3 will ship with that. */
166 /* Version 33 - change fallocate mode flags param from enum->uint32_t */
167 /* Version 33 - Add snapshot create/delete calls */
168 /* Version 33 - Add OS X SMB2 AAPL copyfile extension flag to fsp */
169 /* Version 33 - Remove notify_watch_fn */
170 /* Bump to version 34 - Samba 4.4 will ship with that */
171 /* Version 34 - Remove bool posix_open, add uint64_t posix_flags */
172 /* Version 34 - Added bool posix_pathnames to struct smb_request */
173 /* Bump to version 35 - Samba 4.5 will ship with that */
174 /* Version 35 - Change get_nt_acl_fn from const char *, to
175                 const struct smb_filename * */
176 /* Version 35 - Change mkdir from const char *, to
177                 const struct smb_filename * */
178 /* Version 35 - Change rmdir from const char *, to
179                 const struct smb_filename * */
180 /* Version 35 - Change opendir from const char *, to
181                 const struct smb_filename * */
182 /* Version 35 - Wrap aio async funtions args in a struct vfs_aio_state */
183 /* Version 35 - Change chmod from const char *, to
184                 const struct smb_filename * */
185 /* Version 35 - Change chmod_acl from const char *, to
186                 const struct smb_filename * */
187 /* Version 35 - Change chown from const char *, to
188                 const struct smb_filename * */
189 /* Version 35 - Change lchown from const char *, to
190                 const struct smb_filename * */
191 /* Version 35 - Change streaminfo from const char *, to
192                 const struct smb_filename * */
193 /* Version 35 - Add uint32_t flags to struct smb_filename */
194 /* Version 35 - Add get/set/fget/fset dos attribute functions. */
195 /* Version 35 - Add bool use_ofd_locks to struct files_struct */
196 /* Bump to version 36 - Samba 4.6 will ship with that */
197 /* Version 36 - Remove is_offline and set_offline */
198 /* Version 37 - Module init functions now take a TALLOC_CTX * parameter. */
199 /* Version 37 - Add vfs_copy_chunk_flags for DUP_EXTENTS_TO_FILE */
200 /* Version 37 - Change sys_acl_delete_def_file from const char *
201                 to const struct smb_filename * */
202 /* Version 37 - Change sys_acl_get_file from const char *
203                 to const struct smb_filename * */
204 /* Version 37 - Change sys_acl_blob_get_file from const char *
205                 to const struct smb_filename * */
206 /* Version 37 - Change sys_acl_set_file from const char *
207                 to const struct smb_filename * */
208 /* Version 37 - Change listxattr from const char *
209                 to const struct smb_filename * */
210 /* Version 37 - Change removexattr from const char *
211                 to const struct smb_filename * */
212 /* Version 37 - Change setxattr from const char *
213                 to const struct smb_filename * */
214 /* Version 37 - Change getxattr from const char *
215                 to const struct smb_filename * */
216 /* Version 37 - Change mknod from const char * to const struct smb_filename * */
217 /* Version 37 - Change chflags from const char *
218                 to const struct smb_filename * */
219 /* Version 37 - Change disk_free from const char *
220                 to const struct smb_filename * */
221 /* Version 37 - Change get_quota from const char *
222                 to const struct smb_filename * */
223 /* Version 37 - Change link from const char *
224                 to const struct smb_filename * */
225 /* Version 37 - Change statvfs from const char *
226                 to const struct smb_filename * */
227 /* Version 37 - Change readlink from const char *
228                 to const struct smb_filename * */
229 /* Version 37 - Change symlink from const char *
230                 to const struct smb_filename * */
231 /* Version 37 - Change chdir from const char *
232                 to const struct smb_filename * */
233 /* Version 37 - Change getwd from char *
234                 to const struct smb_filename * */
235 /* Version 37 - Change conn->cwd from char *
236                 to struct smb_filename * */
237 /* Version 37 - Change realpath from char *
238                 to struct smb_filename * */
239 /* Version 37 - Change connectpath from char *
240                 to struct smb_filename * */
241 /* Version 37 - Add SMB_VFS_OFFLOAD_READ_SEND/RECV */
242 /* Version 37 - Rename SMB_VFS_COPY_CHUNK_SEND/RECV to
243                 SMB_VFS_OFFLOAD_READ_SEND/RECV */
244 /* Version 37 - Remove SMB_VFS_STRICT_UNLOCK */
245 /* Version 37 - Rename SMB_VFS_STRICT_LOCK to
246                 SMB_VFS_STRICT_LOCK_CHECK */
247 /* Version 38 - Remove SMB_VFS_INIT_SEARCH_OP */
248 /* Bump to version 39, Samba 4.9 will ship with that */
249 /* Version 39 - Remove SMB_VFS_FSYNC
250                 Only implement async versions. */
251 /* Version 39 - Remove SMB_VFS_READ
252                 All users are now pread or async versions. */
253 /* Version 39 - Remove SMB_VFS_WRITE
254                 All users are now pwrite or async versions. */
255 /* Version 39 - Remove SMB_VFS_CHMOD_ACL - no longer used. */
256 /* Version 39 - Remove SMB_VFS_FCHMOD_ACL - no longer used. */
257 /* Version 39 - Remove struct dfree_cached_info pointer from
258                 connection struct */
259 /* Bump to version 40, Samba 4.10 will ship with that */
260 /* Version 40 - Introduce smb_vfs_ev_glue infrastructure. */
261 /* Version 40 - Add vfs_not_implemented_* helper functions. */
262 /* Version 40 - Add SMB_VFS_GETXATTRAT_SEND/RECV */
263 /* Version 40 - Add SMB_VFS_GET_DOS_ATTRIBUTES_SEND/RECV */
264
265 #define SMB_VFS_INTERFACE_VERSION 40
266
267 /*
268     All intercepted VFS operations must be declared as static functions inside module source
269     in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
270     example VFS modules for more details.
271 */
272
273 /* VFS operations structure */
274
275 struct vfs_handle_struct;
276 struct connection_struct;
277 struct files_struct;
278 struct security_descriptor;
279 struct vfs_statvfs_struct;
280 struct smb_request;
281 struct ea_list;
282 struct smb_file_time;
283 struct blocking_lock_record;
284 struct smb_filename;
285 struct dfs_GetDFSReferral;
286 struct tevent_context;
287 struct pthreadpool_tevent;
288 struct smb_vfs_ev_glue;
289
290 typedef union unid_t {
291         uid_t uid;
292         gid_t gid;
293 } unid_t;
294
295 struct fd_handle {
296         size_t ref_count;
297         int fd;
298         uint64_t position_information;
299         off_t pos;
300         uint32_t private_options;       /* NT Create options, but we only look at
301                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_DOS and
302                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_FCB and
303                                  * NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE
304                                  * for print files *only*, where
305                                  * DELETE_ON_CLOSE is not stored in the share
306                                  * mode database.
307                                  */
308         unsigned long gen_id;
309 };
310
311 struct fsp_lease {
312         size_t ref_count;
313         struct smbd_server_connection *sconn;
314         struct tevent_timer *timeout;
315         struct smb2_lease lease;
316 };
317
318 typedef struct files_struct {
319         struct files_struct *next, *prev;
320         uint64_t fnum;
321         struct smbXsrv_open *op;
322         struct connection_struct *conn;
323         struct fd_handle *fh;
324         unsigned int num_smb_operations;
325         struct file_id file_id;
326         uint64_t initial_allocation_size; /* Faked up initial allocation on disk. */
327         uint16_t file_pid;
328         uint64_t vuid; /* SMB2 compat */
329         struct write_cache *wcp;
330         struct timeval open_time;
331         uint32_t access_mask;           /* NTCreateX access bits (FILE_READ_DATA etc.) */
332         uint32_t share_access;          /* NTCreateX share constants (FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE). */
333
334         bool kernel_share_modes_taken;
335
336         bool update_write_time_triggered;
337         struct tevent_timer *update_write_time_event;
338         bool update_write_time_on_close;
339         struct timespec close_write_time;
340         bool write_time_forced;
341
342         int oplock_type;
343         struct fsp_lease *lease;
344         int sent_oplock_break;
345         struct tevent_timer *oplock_timeout;
346         struct lock_struct last_lock_failure;
347         int current_lock_count; /* Count the number of outstanding locks and pending locks. */
348
349         bool can_lock;
350         bool can_read;
351         bool can_write;
352         bool modified;
353         bool is_directory;
354         bool aio_write_behind;
355         bool initial_delete_on_close; /* Only set at NTCreateX if file was created. */
356         bool delete_on_close;
357         uint64_t posix_flags;
358         bool is_sparse;
359         bool backup_intent; /* Handle was successfully opened with backup intent
360                                 and opener has privilege to do so. */
361         bool use_ofd_locks; /* Are we using open file description locks ? */
362         struct smb_filename *fsp_name;
363         uint32_t name_hash;             /* Jenkins hash of full pathname. */
364         uint64_t mid;                   /* Mid of the operation that created us. */
365
366         struct vfs_fsp_data *vfs_extension;
367         struct fake_file_handle *fake_file_handle;
368
369         struct notify_change_buf *notify;
370
371         struct files_struct *base_fsp; /* placeholder for delete on close */
372
373         /*
374          * Read-only cached brlock record, thrown away when the
375          * brlock.tdb seqnum changes. This avoids fetching data from
376          * the brlock.tdb on every read/write call.
377          */
378         int brlock_seqnum;
379         struct byte_range_lock *brlock_rec;
380
381         struct dptr_struct *dptr;
382
383         /* if not NULL, means this is a print file */
384         struct print_file_data *print_file;
385
386         unsigned num_aio_requests;
387         struct tevent_req **aio_requests;
388
389         /*
390          * If a close request comes in while we still have aio_requests
391          * around, we need to hold back the close. When all aio_requests are
392          * done, the aio completion routines need tevent_wait_done() on
393          * this. A bit ugly, but before we have close_file() fully async
394          * possibly the simplest approach. Thanks, Jeremy for the idea.
395          */
396         struct tevent_req *deferred_close;
397 } files_struct;
398
399 #define FSP_POSIX_FLAGS_OPEN            0x01
400 #define FSP_POSIX_FLAGS_RENAME          0x02
401 #define FSP_POSIX_FLAGS_PATHNAMES       0x04
402
403 #define FSP_POSIX_FLAGS_ALL                     \
404         (FSP_POSIX_FLAGS_OPEN |                 \
405          FSP_POSIX_FLAGS_PATHNAMES |            \
406          FSP_POSIX_FLAGS_RENAME)
407
408 struct vuid_cache_entry {
409         struct auth_session_info *session_info;
410         struct smb_vfs_ev_glue *user_vfs_evg;
411         uint64_t vuid; /* SMB2 compat */
412         bool read_only;
413         uint32_t share_access;
414 };
415
416 struct vuid_cache {
417         unsigned int next_entry;
418         struct vuid_cache_entry array[VUID_CACHE_SIZE];
419 };
420
421 typedef struct {
422         char *name;
423         bool is_wild;
424 } name_compare_entry;
425
426 struct share_params {
427         int service;
428 };
429
430 typedef struct connection_struct {
431         struct connection_struct *next, *prev;
432         struct smbd_server_connection *sconn; /* can be NULL */
433         struct smbXsrv_tcon *tcon; /* can be NULL */
434         uint32_t cnum; /* an index passed over the wire */
435         struct share_params *params;
436         bool force_user;
437         struct vuid_cache *vuid_cache;
438         bool printer;
439         bool ipc;
440         bool read_only; /* Attributes for the current user of the share. */
441         uint32_t share_access;
442         /* Does this filesystem honor
443            sub second timestamps on files
444            and directories when setting time ? */
445         enum timestamp_set_resolution ts_res;
446         char *connectpath;
447         char *origpath;
448         struct smb_filename *cwd_fname; /* Working directory. */
449         bool tcon_done;
450
451         struct vfs_handle_struct *vfs_handles;          /* for the new plugins */
452
453         /*
454          * This represents the user information on this connection. Depending
455          * on the vuid using this tid, this might change per SMB request.
456          */
457         struct auth_session_info *session_info;
458         struct tevent_context *user_ev_ctx;
459         struct smb_vfs_ev_glue *user_vfs_evg;
460
461         /*
462          * If the "force group" parameter is set, this is the primary gid that
463          * may be used in the users token, depending on the vuid using this tid.
464          */
465         gid_t force_group_gid;
466
467         uint64_t vuid; /* vuid of user who *opened* this connection, or UID_FIELD_INVALID */
468
469         time_t lastused;
470         time_t lastused_count;
471         int num_files_open;
472         unsigned int num_smb_operations; /* Count of smb operations on this tree. */
473         int encrypt_level;
474         bool encrypted_tid;
475
476         /* Semantics requested by the client or forced by the server config. */
477         bool case_sensitive;
478         bool case_preserve;
479         bool short_case_preserve;
480
481         /* Semantics provided by the underlying filesystem. */
482         int fs_capabilities;
483         /* Device number of the directory of the share mount.
484            Used to ensure unique FileIndex returns. */
485         SMB_DEV_T base_share_dev;
486
487         name_compare_entry *hide_list; /* Per-share list of files to return as hidden. */
488         name_compare_entry *veto_list; /* Per-share list of files to veto (never show). */
489         name_compare_entry *veto_oplock_list; /* Per-share list of files to refuse oplocks on. */       
490         name_compare_entry *aio_write_behind_list; /* Per-share list of files to use aio write behind on. */       
491         struct trans_state *pending_trans;
492
493         struct rpc_pipe_client *spoolss_pipe;
494
495 } connection_struct;
496
497 struct smbd_smb2_request;
498 struct privilege_paths;
499
500 struct smb_request {
501         uint8_t cmd;
502         uint16_t flags2;
503         uint16_t smbpid;
504         uint64_t mid; /* For compatibility with SMB2. */
505         uint32_t seqnum;
506         uint64_t vuid; /* For compatibility with SMB2. */
507         uint32_t tid;
508         uint8_t  wct;
509         const uint16_t *vwv;
510         uint16_t buflen;
511         const uint8_t *buf;
512         const uint8_t *inbuf;
513
514         /*
515          * Async handling in the main smb processing loop is directed by
516          * outbuf: reply_xxx routines indicate sync behaviour by putting their
517          * reply into "outbuf". If they leave it as NULL, they take care of it
518          * themselves, possibly later.
519          *
520          * If async handling is wanted, the reply_xxx routine must make sure
521          * that it talloc_move()s the smb_req somewhere else.
522          */
523         uint8_t *outbuf;
524
525         size_t unread_bytes;
526         bool encrypted;
527         /* the tevent_context (wrapper) the request operates on */
528         struct tevent_context *ev_ctx;
529         connection_struct *conn;
530         struct smbd_server_connection *sconn;
531         struct smbXsrv_connection *xconn;
532         struct smb_perfcount_data pcd;
533
534         /*
535          * Chained request handling
536          */
537         struct files_struct *chain_fsp;
538
539         /*
540          * state information for async smb handling
541          */
542         void *async_priv;
543
544         /*
545          * Back pointer to smb2 request.
546          */
547         struct smbd_smb2_request *smb2req;
548
549         /*
550          * Pathnames used if request done
551          * under privilege.
552          */
553         struct privilege_paths *priv_paths;
554
555         /*
556          * Request list for chained requests, we're part of it.
557          */
558         struct smb_request **chain;
559
560         struct timeval request_time;
561
562         bool posix_pathnames;
563 };
564
565 /*
566  * Info about an alternate data stream
567  */
568
569 struct stream_struct {
570         off_t size;
571         off_t alloc_size;
572         char *name;
573 };
574
575 /* time info */
576 struct smb_file_time {
577         struct timespec mtime;
578         struct timespec atime;
579         struct timespec ctime;
580         struct timespec create_time;
581 };
582
583 /*
584  * smb_filename
585  */
586 struct smb_filename {
587         char *base_name;
588         char *stream_name;
589         char *original_lcomp;
590         uint32_t flags;
591         SMB_STRUCT_STAT st;
592 };
593
594 /*
595  * smb_filename flags. Define in terms of the FSP_POSIX_FLAGS_XX
596  * to keep the numeric values consistent.
597  */
598
599 #define SMB_FILENAME_POSIX_PATH         FSP_POSIX_FLAGS_PATHNAMES
600
601 #define VFS_FIND(__fn__) while (handle->fns->__fn__##_fn==NULL) { \
602                                 handle = handle->next; \
603                          }
604
605 enum vfs_translate_direction {
606         vfs_translate_to_unix = 0,
607         vfs_translate_to_windows
608 };
609
610 enum vfs_fallocate_flags {
611         VFS_FALLOCATE_FL_KEEP_SIZE              = 0x0001,
612         VFS_FALLOCATE_FL_PUNCH_HOLE             = 0x0002,
613 };
614
615 struct vfs_aio_state {
616         int error;
617         uint64_t duration;
618 };
619
620 /*
621     Available VFS operations. These values must be in sync with vfs_ops struct
622     (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
623     In particular, if new operations are added to vfs_ops, appropriate constants
624     should be added to vfs_op_type so that order of them kept same as in vfs_ops.
625 */
626 struct shadow_copy_data;
627
628 struct vfs_fn_pointers {
629         /* Disk operations */
630
631         int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
632         void (*disconnect_fn)(struct vfs_handle_struct *handle);
633         uint64_t (*disk_free_fn)(struct vfs_handle_struct *handle,
634                                 const struct smb_filename *smb_fname,
635                                 uint64_t *bsize,
636                                 uint64_t *dfree,
637                                 uint64_t *dsize);
638         int (*get_quota_fn)(struct vfs_handle_struct *handle,
639                                 const struct smb_filename *smb_fname,
640                                 enum SMB_QUOTA_TYPE qtype,
641                                 unid_t id,
642                                 SMB_DISK_QUOTA *qt);
643         int (*set_quota_fn)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
644         int (*get_shadow_copy_data_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, struct shadow_copy_data *shadow_copy_data, bool labels);
645         int (*statvfs_fn)(struct vfs_handle_struct *handle,
646                                 const struct smb_filename *smb_fname,
647                                 struct vfs_statvfs_struct *statbuf);
648         uint32_t (*fs_capabilities_fn)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
649
650         /*
651          * Note: that "struct dfs_GetDFSReferral *r"
652          * needs to be a valid TALLOC_CTX
653          */
654         NTSTATUS (*get_dfs_referrals_fn)(struct vfs_handle_struct *handle,
655                                          struct dfs_GetDFSReferral *r);
656
657         /* Directory operations */
658
659         DIR *(*opendir_fn)(struct vfs_handle_struct *handle,
660                                         const struct smb_filename *smb_fname,
661                                         const char *mask,
662                                         uint32_t attributes);
663         DIR *(*fdopendir_fn)(struct vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32_t attributes);
664         struct dirent *(*readdir_fn)(struct vfs_handle_struct *handle,
665                                          DIR *dirp,
666                                          SMB_STRUCT_STAT *sbuf);
667         void (*seekdir_fn)(struct vfs_handle_struct *handle, DIR *dirp, long offset);
668         long (*telldir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
669         void (*rewind_dir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
670         int (*mkdir_fn)(struct vfs_handle_struct *handle,
671                         const struct smb_filename *smb_fname,
672                         mode_t mode);
673         int (*rmdir_fn)(struct vfs_handle_struct *handle,
674                         const struct smb_filename *smb_fname);
675         int (*closedir_fn)(struct vfs_handle_struct *handle, DIR *dir);
676
677         /* File operations */
678
679         int (*open_fn)(struct vfs_handle_struct *handle,
680                        struct smb_filename *smb_fname, files_struct *fsp,
681                        int flags, mode_t mode);
682         NTSTATUS (*create_file_fn)(struct vfs_handle_struct *handle,
683                                    struct smb_request *req,
684                                    uint16_t root_dir_fid,
685                                    struct smb_filename *smb_fname,
686                                    uint32_t access_mask,
687                                    uint32_t share_access,
688                                    uint32_t create_disposition,
689                                    uint32_t create_options,
690                                    uint32_t file_attributes,
691                                    uint32_t oplock_request,
692                                    struct smb2_lease *lease,
693                                    uint64_t allocation_size,
694                                    uint32_t private_flags,
695                                    struct security_descriptor *sd,
696                                    struct ea_list *ea_list,
697                                    files_struct **result,
698                                    int *pinfo,
699                                    const struct smb2_create_blobs *in_context_blobs,
700                                    struct smb2_create_blobs *out_context_blobs);
701         int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
702         ssize_t (*pread_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, off_t offset);
703         struct tevent_req *(*pread_send_fn)(struct vfs_handle_struct *handle,
704                                             TALLOC_CTX *mem_ctx,
705                                             struct tevent_context *ev,
706                                             struct files_struct *fsp,
707                                             void *data,
708                                             size_t n, off_t offset);
709         ssize_t (*pread_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
710         ssize_t (*pwrite_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, off_t offset);
711         struct tevent_req *(*pwrite_send_fn)(struct vfs_handle_struct *handle,
712                                              TALLOC_CTX *mem_ctx,
713                                              struct tevent_context *ev,
714                                              struct files_struct *fsp,
715                                              const void *data,
716                                              size_t n, off_t offset);
717         ssize_t (*pwrite_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
718         off_t (*lseek_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset, int whence);
719         ssize_t (*sendfile_fn)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, off_t offset, size_t count);
720         ssize_t (*recvfile_fn)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, off_t offset, size_t count);
721         int (*rename_fn)(struct vfs_handle_struct *handle,
722                          const struct smb_filename *smb_fname_src,
723                          const struct smb_filename *smb_fname_dst);
724         struct tevent_req *(*fsync_send_fn)(struct vfs_handle_struct *handle,
725                                             TALLOC_CTX *mem_ctx,
726                                             struct tevent_context *ev,
727                                             struct files_struct *fsp);
728         int (*fsync_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
729         int (*stat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
730         int (*fstat_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
731         int (*lstat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
732         uint64_t (*get_alloc_size_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
733         int (*unlink_fn)(struct vfs_handle_struct *handle,
734                          const struct smb_filename *smb_fname);
735         int (*chmod_fn)(struct vfs_handle_struct *handle,
736                         const struct smb_filename *smb_fname,
737                         mode_t mode);
738         int (*fchmod_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
739         int (*chown_fn)(struct vfs_handle_struct *handle,
740                         const struct smb_filename *smb_fname,
741                         uid_t uid,
742                         gid_t gid);
743         int (*fchown_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
744         int (*lchown_fn)(struct vfs_handle_struct *handle,
745                         const struct smb_filename *smb_fname,
746                         uid_t uid,
747                         gid_t gid);
748         int (*chdir_fn)(struct vfs_handle_struct *handle,
749                          const struct smb_filename *smb_fname);
750         struct smb_filename *(*getwd_fn)(struct vfs_handle_struct *handle,
751                                 TALLOC_CTX *mem_ctx);
752         int (*ntimes_fn)(struct vfs_handle_struct *handle,
753                          const struct smb_filename *smb_fname,
754                          struct smb_file_time *ft);
755         int (*ftruncate_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset);
756         int (*fallocate_fn)(struct vfs_handle_struct *handle,
757                             struct files_struct *fsp,
758                             uint32_t mode,
759                             off_t offset,
760                             off_t len);
761         bool (*lock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, off_t offset, off_t count, int type);
762         int (*kernel_flock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
763                                uint32_t share_mode, uint32_t access_mask);
764         int (*linux_setlease_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
765         bool (*getlock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid);
766         int (*symlink_fn)(struct vfs_handle_struct *handle,
767                                 const char *link_contents,
768                                 const struct smb_filename *new_smb_fname);
769         int (*readlink_fn)(struct vfs_handle_struct *handle,
770                                 const struct smb_filename *smb_fname,
771                                 char *buf,
772                                 size_t bufsiz);
773         int (*link_fn)(struct vfs_handle_struct *handle,
774                                 const struct smb_filename *old_smb_fname,
775                                 const struct smb_filename *new_smb_fname);
776         int (*mknod_fn)(struct vfs_handle_struct *handle,
777                                 const struct smb_filename *smb_fname,
778                                 mode_t mode,
779                                 SMB_DEV_T dev);
780         struct smb_filename *(*realpath_fn)(struct vfs_handle_struct *handle,
781                                 TALLOC_CTX *ctx,
782                                 const struct smb_filename *smb_fname);
783         int (*chflags_fn)(struct vfs_handle_struct *handle,
784                                 const struct smb_filename *smb_fname,
785                                 unsigned int flags);
786         struct file_id (*file_id_create_fn)(struct vfs_handle_struct *handle,
787                                             const SMB_STRUCT_STAT *sbuf);
788         struct tevent_req *(*offload_read_send_fn)(TALLOC_CTX *mem_ctx,
789                                                    struct tevent_context *ev,
790                                                    struct vfs_handle_struct *handle,
791                                                    struct files_struct *fsp,
792                                                    uint32_t fsctl,
793                                                    uint32_t ttl,
794                                                    off_t offset,
795                                                    size_t to_copy);
796         NTSTATUS (*offload_read_recv_fn)(struct tevent_req *req,
797                                          struct vfs_handle_struct *handle,
798                                          TALLOC_CTX *mem_ctx,
799                                          DATA_BLOB *token_blob);
800         struct tevent_req *(*offload_write_send_fn)(struct vfs_handle_struct *handle,
801                                                     TALLOC_CTX *mem_ctx,
802                                                     struct tevent_context *ev,
803                                                     uint32_t fsctl,
804                                                     DATA_BLOB *token,
805                                                     off_t transfer_offset,
806                                                     struct files_struct *dest_fsp,
807                                                     off_t dest_off,
808                                                     off_t to_copy);
809         NTSTATUS (*offload_write_recv_fn)(struct vfs_handle_struct *handle,
810                                           struct tevent_req *req,
811                                           off_t *copied);
812         NTSTATUS (*get_compression_fn)(struct vfs_handle_struct *handle,
813                                        TALLOC_CTX *mem_ctx,
814                                        struct files_struct *fsp,
815                                        struct smb_filename *smb_fname,
816                                        uint16_t *_compression_fmt);
817         NTSTATUS (*set_compression_fn)(struct vfs_handle_struct *handle,
818                                        TALLOC_CTX *mem_ctx,
819                                        struct files_struct *fsp,
820                                        uint16_t compression_fmt);
821         NTSTATUS (*snap_check_path_fn)(struct vfs_handle_struct *handle,
822                                        TALLOC_CTX *mem_ctx,
823                                        const char *service_path,
824                                        char **base_volume);
825         NTSTATUS (*snap_create_fn)(struct vfs_handle_struct *handle,
826                                    TALLOC_CTX *mem_ctx,
827                                    const char *base_volume,
828                                    time_t *tstamp,
829                                    bool rw,
830                                    char **base_path,
831                                    char **snap_path);
832         NTSTATUS (*snap_delete_fn)(struct vfs_handle_struct *handle,
833                                    TALLOC_CTX *mem_ctx,
834                                    char *base_path,
835                                    char *snap_path);
836
837         NTSTATUS (*streaminfo_fn)(struct vfs_handle_struct *handle,
838                                   struct files_struct *fsp,
839                                   const struct smb_filename *smb_fname,
840                                   TALLOC_CTX *mem_ctx,
841                                   unsigned int *num_streams,
842                                   struct stream_struct **streams);
843
844         int (*get_real_filename_fn)(struct vfs_handle_struct *handle,
845                                     const char *path,
846                                     const char *name,
847                                     TALLOC_CTX *mem_ctx,
848                                     char **found_name);
849
850         const char *(*connectpath_fn)(struct vfs_handle_struct *handle,
851                                       const struct smb_filename *smb_fname);
852
853         NTSTATUS (*brl_lock_windows_fn)(struct vfs_handle_struct *handle,
854                                         struct byte_range_lock *br_lck,
855                                         struct lock_struct *plock,
856                                         bool blocking_lock);
857
858         bool (*brl_unlock_windows_fn)(struct vfs_handle_struct *handle,
859                                       struct messaging_context *msg_ctx,
860                                       struct byte_range_lock *br_lck,
861                                       const struct lock_struct *plock);
862
863         bool (*brl_cancel_windows_fn)(struct vfs_handle_struct *handle,
864                                       struct byte_range_lock *br_lck,
865                                       struct lock_struct *plock);
866
867         bool (*strict_lock_check_fn)(struct vfs_handle_struct *handle,
868                                      struct files_struct *fsp,
869                                      struct lock_struct *plock);
870
871         NTSTATUS (*translate_name_fn)(struct vfs_handle_struct *handle,
872                                       const char *name,
873                                       enum vfs_translate_direction direction,
874                                       TALLOC_CTX *mem_ctx,
875                                       char **mapped_name);
876
877         NTSTATUS (*fsctl_fn)(struct vfs_handle_struct *handle,
878                              struct files_struct *fsp,
879                              TALLOC_CTX *ctx,
880                              uint32_t function,
881                              uint16_t req_flags,
882                              const uint8_t *_in_data,
883                              uint32_t in_len,
884                              uint8_t **_out_data,
885                              uint32_t max_out_len,
886                              uint32_t *out_len); 
887
888         NTSTATUS (*get_dos_attributes_fn)(struct vfs_handle_struct *handle,
889                                           struct smb_filename *smb_fname,
890                                           uint32_t *dosmode);
891
892         NTSTATUS (*fget_dos_attributes_fn)(struct vfs_handle_struct *handle,
893                                            struct files_struct *fsp,
894                                            uint32_t *dosmode);
895
896         NTSTATUS (*set_dos_attributes_fn)(struct vfs_handle_struct *handle,
897                                           const struct smb_filename *smb_fname,
898                                           uint32_t dosmode);
899
900         NTSTATUS (*fset_dos_attributes_fn)(struct vfs_handle_struct *hande,
901                                            struct files_struct *fsp,
902                                            uint32_t dosmode);
903
904         struct tevent_req *(*get_dos_attributes_send_fn)(
905                                 TALLOC_CTX *mem_ctx,
906                                 const struct smb_vfs_ev_glue *evg,
907                                 struct vfs_handle_struct *handle,
908                                 files_struct *dir_fsp,
909                                 struct smb_filename *smb_fname);
910
911         NTSTATUS (*get_dos_attributes_recv_fn)(
912                                 struct tevent_req *req,
913                                 struct vfs_aio_state *aio_state,
914                                 uint32_t *dosmode);
915
916         /* NT ACL operations. */
917
918         NTSTATUS (*fget_nt_acl_fn)(struct vfs_handle_struct *handle,
919                                    struct files_struct *fsp,
920                                    uint32_t security_info,
921                                    TALLOC_CTX *mem_ctx,
922                                    struct security_descriptor **ppdesc);
923         NTSTATUS (*get_nt_acl_fn)(struct vfs_handle_struct *handle,
924                                   const struct smb_filename *smb_fname,
925                                   uint32_t security_info,
926                                    TALLOC_CTX *mem_ctx,
927                                   struct security_descriptor **ppdesc);
928         NTSTATUS (*fset_nt_acl_fn)(struct vfs_handle_struct *handle,
929                                    struct files_struct *fsp,
930                                    uint32_t security_info_sent,
931                                    const struct security_descriptor *psd);
932
933         NTSTATUS (*audit_file_fn)(struct vfs_handle_struct *handle,
934                                   struct smb_filename *file,
935                                   struct security_acl *sacl,
936                                   uint32_t access_requested,
937                                   uint32_t access_denied);
938
939         /* POSIX ACL operations. */
940
941         SMB_ACL_T (*sys_acl_get_file_fn)(struct vfs_handle_struct *handle,
942                                          const struct smb_filename *smb_fname,
943                                          SMB_ACL_TYPE_T type,
944                                          TALLOC_CTX *mem_ctx);
945         SMB_ACL_T (*sys_acl_get_fd_fn)(struct vfs_handle_struct *handle,
946                                        struct files_struct *fsp,
947                                        TALLOC_CTX *mem_ctx);
948         int (*sys_acl_blob_get_file_fn)(struct vfs_handle_struct *handle,
949                                         const struct smb_filename *smb_fname,
950                                         TALLOC_CTX *mem_ctx,
951                                         char **blob_description,
952                                         DATA_BLOB *blob);
953         int (*sys_acl_blob_get_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
954                                       TALLOC_CTX *mem_ctx, char **blob_description,
955                                       DATA_BLOB *blob);
956         int (*sys_acl_set_file_fn)(struct vfs_handle_struct *handle,
957                                         const struct smb_filename *smb_fname,
958                                         SMB_ACL_TYPE_T acltype,
959                                         SMB_ACL_T theacl);
960         int (*sys_acl_set_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
961         int (*sys_acl_delete_def_file_fn)(struct vfs_handle_struct *handle,
962                                         const struct smb_filename *smb_fname);
963
964         /* EA operations. */
965         ssize_t (*getxattr_fn)(struct vfs_handle_struct *handle,
966                                         const struct smb_filename *smb_fname,
967                                         const char *name,
968                                         void *value,
969                                         size_t size);
970         struct tevent_req *(*getxattrat_send_fn)(
971                                 TALLOC_CTX *mem_ctx,
972                                 struct tevent_context *ev,
973                                 struct vfs_handle_struct *handle,
974                                 files_struct *dir_fsp,
975                                 const struct smb_filename *smb_fname,
976                                 const char *xattr_name,
977                                 size_t alloc_hint);
978         ssize_t (*getxattrat_recv_fn)(struct tevent_req *req,
979                                       struct vfs_aio_state *aio_state,
980                                       TALLOC_CTX *mem_ctx,
981                                       uint8_t **xattr_value);
982         ssize_t (*fgetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
983         ssize_t (*listxattr_fn)(struct vfs_handle_struct *handle,
984                                         const struct smb_filename *smb_fname,
985                                         char *list,
986                                         size_t size);
987         ssize_t (*flistxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
988         int (*removexattr_fn)(struct vfs_handle_struct *handle,
989                                         const struct smb_filename *smb_fname,
990                                         const char *name);
991         int (*fremovexattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
992         int (*setxattr_fn)(struct vfs_handle_struct *handle,
993                                         const struct smb_filename *smb_fname,
994                                         const char *name,
995                                         const void *value,
996                                         size_t size,
997                                         int flags);
998         int (*fsetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
999
1000         /* aio operations */
1001         bool (*aio_force_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
1002
1003         /* durable handle operations */
1004         NTSTATUS (*durable_cookie_fn)(struct vfs_handle_struct *handle,
1005                                       struct files_struct *fsp,
1006                                       TALLOC_CTX *mem_ctx,
1007                                       DATA_BLOB *cookie);
1008         NTSTATUS (*durable_disconnect_fn)(struct vfs_handle_struct *handle,
1009                                           struct files_struct *fsp,
1010                                           const DATA_BLOB old_cookie,
1011                                           TALLOC_CTX *mem_ctx,
1012                                           DATA_BLOB *new_cookie);
1013         NTSTATUS (*durable_reconnect_fn)(struct vfs_handle_struct *handle,
1014                                          struct smb_request *smb1req,
1015                                          struct smbXsrv_open *op,
1016                                          const DATA_BLOB old_cookie,
1017                                          TALLOC_CTX *mem_ctx,
1018                                          struct files_struct **fsp,
1019                                          DATA_BLOB *new_cookie);
1020
1021         NTSTATUS (*readdir_attr_fn)(struct vfs_handle_struct *handle,
1022                                     const struct smb_filename *fname,
1023                                     TALLOC_CTX *mem_ctx,
1024                                     struct readdir_attr_data **attr_data);
1025 };
1026
1027 /*
1028     VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
1029     which describes all operations this module is willing to intercept.
1030     VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
1031     using this information.
1032 */
1033
1034 typedef struct vfs_handle_struct {
1035         struct vfs_handle_struct  *next, *prev;
1036         const char *param;
1037         struct connection_struct *conn;
1038         const struct vfs_fn_pointers *fns;
1039         void *data;
1040         void (*free_data)(void **data);
1041 } vfs_handle_struct;
1042
1043
1044 typedef struct vfs_statvfs_struct {
1045         /* For undefined recommended transfer size return -1 in that field */
1046         uint32_t OptimalTransferSize;  /* bsize on some os, iosize on other os */
1047         uint32_t BlockSize;
1048
1049         /*
1050          The next three fields are in terms of the block size.
1051          (above). If block size is unknown, 4096 would be a
1052          reasonable block size for a server to report.
1053          Note that returning the blocks/blocksavail removes need
1054          to make a second call (to QFSInfo level 0x103 to get this info.
1055          UserBlockAvail is typically less than or equal to BlocksAvail,
1056          if no distinction is made return the same value in each.
1057         */
1058
1059         uint64_t TotalBlocks;
1060         uint64_t BlocksAvail;       /* bfree */
1061         uint64_t UserBlocksAvail;   /* bavail */
1062
1063         /* For undefined Node fields or FSID return -1 */
1064         uint64_t TotalFileNodes;
1065         uint64_t FreeFileNodes;
1066         uint64_t FsIdentifier;   /* fsid */
1067         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
1068         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
1069
1070         int FsCapabilities;
1071 } vfs_statvfs_struct;
1072
1073 /* Add a new FSP extension of the given type. Returns a pointer to the
1074  * extenstion data.
1075  */
1076 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn)            \
1077     (type *)vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
1078
1079 /* Return a pointer to the existing FSP extension data. */
1080 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
1081     vfs_fetch_fsp_extension(handle, (fsp))
1082
1083 /* Return the talloc context associated with an FSP extension. */
1084 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
1085     vfs_memctx_fsp_extension(handle, (fsp))
1086
1087 /* Remove and destroy an FSP extension. */
1088 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
1089     vfs_remove_fsp_extension((handle), (fsp))
1090
1091 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
1092         if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
1093                 DEBUG(0,("%s() failed to get vfs_handle->data!\n",__FUNCTION__)); \
1094                 ret; \
1095         } \
1096 }
1097
1098 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
1099         if (!(handle)) { \
1100                 DEBUG(0,("%s() failed to set handle->data!\n",__FUNCTION__)); \
1101                 ret; \
1102         } else { \
1103                 if ((handle)->free_data) { \
1104                         (handle)->free_data(&(handle)->data); \
1105                 } \
1106                 (handle)->data = (void *)datap; \
1107                 (handle)->free_data = free_fn; \
1108         } \
1109 }
1110
1111 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
1112         if ((handle) && (handle)->free_data) { \
1113                 (handle)->free_data(&(handle)->data); \
1114         } \
1115 }
1116
1117 /* Check whether module-specific data handle was already allocated or not */
1118 #define SMB_VFS_HANDLE_TEST_DATA(handle)  ( !(handle) || !(handle)->data ? False : True )
1119
1120 #define SMB_VFS_OP(x) ((void *) x)
1121
1122 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
1123
1124 #include "vfs_macros.h"
1125
1126 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1127                          const char *service, const char *user);
1128 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
1129 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1130                                 const struct smb_filename *smb_filename,
1131                                 uint64_t *bsize,
1132                                 uint64_t *dfree,
1133                                 uint64_t *dsize);
1134 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1135                                 const struct smb_filename *smb_filename,
1136                                 enum SMB_QUOTA_TYPE qtype,
1137                                 unid_t id,
1138                                 SMB_DISK_QUOTA *qt);
1139 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1140                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1141                            SMB_DISK_QUOTA *qt);
1142 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1143                                       struct files_struct *fsp,
1144                                       struct shadow_copy_data *shadow_copy_data,
1145                                       bool labels);
1146 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle,
1147                         const struct smb_filename *smb_fname,
1148                         struct vfs_statvfs_struct *statbuf);
1149 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1150                                       enum timestamp_set_resolution *p_ts_res);
1151 /*
1152  * Note: that "struct dfs_GetDFSReferral *r" needs to be a valid TALLOC_CTX
1153  */
1154 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
1155                                         struct dfs_GetDFSReferral *r);
1156 DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1157                         const struct smb_filename *smb_fname,
1158                         const char *mask,
1159                         uint32_t attributes);
1160 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1161                                         struct files_struct *fsp,
1162                                         const char *mask,
1163                                         uint32_t attributes);
1164 struct dirent *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1165                                         DIR *dirp,
1166                                         SMB_STRUCT_STAT *sbuf);
1167 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1168                           DIR *dirp, long offset);
1169 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1170                           DIR *dirp);
1171 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1172                              DIR *dirp);
1173 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle,
1174                         const struct smb_filename *smb_fname,
1175                         mode_t mode);
1176 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle,
1177                         const struct smb_filename *smb_fname);
1178 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1179                           DIR *dir);
1180 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1181                       struct smb_filename *smb_fname, struct files_struct *fsp,
1182                       int flags, mode_t mode);
1183 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1184                                   struct smb_request *req,
1185                                   uint16_t root_dir_fid,
1186                                   struct smb_filename *smb_fname,
1187                                   uint32_t access_mask,
1188                                   uint32_t share_access,
1189                                   uint32_t create_disposition,
1190                                   uint32_t create_options,
1191                                   uint32_t file_attributes,
1192                                   uint32_t oplock_request,
1193                                   struct smb2_lease *lease,
1194                                   uint64_t allocation_size,
1195                                   uint32_t private_flags,
1196                                   struct security_descriptor *sd,
1197                                   struct ea_list *ea_list,
1198                                   files_struct **result,
1199                                   int *pinfo,
1200                                   const struct smb2_create_blobs *in_context_blobs,
1201                                   struct smb2_create_blobs *out_context_blobs);
1202 int smb_vfs_call_close(struct vfs_handle_struct *handle,
1203                        struct files_struct *fsp);
1204 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1205                            struct files_struct *fsp, void *data, size_t n,
1206                            off_t offset);
1207 struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle,
1208                                            TALLOC_CTX *mem_ctx,
1209                                            struct tevent_context *ev,
1210                                            struct files_struct *fsp,
1211                                            void *data,
1212                                            size_t n, off_t offset);
1213 ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1214
1215 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1216                             struct files_struct *fsp, const void *data,
1217                             size_t n, off_t offset);
1218 struct tevent_req *smb_vfs_call_pwrite_send(struct vfs_handle_struct *handle,
1219                                             TALLOC_CTX *mem_ctx,
1220                                             struct tevent_context *ev,
1221                                             struct files_struct *fsp,
1222                                             const void *data,
1223                                             size_t n, off_t offset);
1224 ssize_t SMB_VFS_PWRITE_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1225
1226 off_t smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1227                              struct files_struct *fsp, off_t offset,
1228                              int whence);
1229 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1230                               files_struct *fromfsp, const DATA_BLOB *header,
1231                               off_t offset, size_t count);
1232 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1233                               files_struct *tofsp, off_t offset,
1234                               size_t count);
1235 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1236                         const struct smb_filename *smb_fname_src,
1237                         const struct smb_filename *smb_fname_dst);
1238
1239 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
1240                                            TALLOC_CTX *mem_ctx,
1241                                            struct tevent_context *ev,
1242                                            struct files_struct *fsp);
1243 int SMB_VFS_FSYNC_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1244
1245 int smb_vfs_fsync_sync(files_struct *fsp);
1246 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1247                       struct smb_filename *smb_fname);
1248 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1249                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
1250 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1251                        struct smb_filename *smb_filename);
1252 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1253                                      struct files_struct *fsp,
1254                                      const SMB_STRUCT_STAT *sbuf);
1255 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1256                         const struct smb_filename *smb_fname);
1257 int smb_vfs_call_chmod(struct vfs_handle_struct *handle,
1258                         const struct smb_filename *smb_fname,
1259                         mode_t mode);
1260 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1261                         struct files_struct *fsp, mode_t mode);
1262 int smb_vfs_call_chown(struct vfs_handle_struct *handle,
1263                         const struct smb_filename *smb_fname,
1264                         uid_t uid,
1265                         gid_t gid);
1266 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1267                         struct files_struct *fsp, uid_t uid, gid_t gid);
1268 int smb_vfs_call_lchown(struct vfs_handle_struct *handle,
1269                         const struct smb_filename *smb_fname,
1270                         uid_t uid,
1271                         gid_t gid);
1272 int smb_vfs_call_chdir(struct vfs_handle_struct *handle,
1273                         const struct smb_filename *smb_fname);
1274 struct smb_filename *smb_vfs_call_getwd(struct vfs_handle_struct *handle,
1275                                 TALLOC_CTX *ctx);
1276 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1277                         const struct smb_filename *smb_fname,
1278                         struct smb_file_time *ft);
1279 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1280                            struct files_struct *fsp, off_t offset);
1281 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1282                            struct files_struct *fsp,
1283                            uint32_t mode,
1284                            off_t offset,
1285                            off_t len);
1286 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
1287                        struct files_struct *fsp, int op, off_t offset,
1288                        off_t count, int type);
1289 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1290                               struct files_struct *fsp, uint32_t share_mode,
1291                               uint32_t access_mask);
1292 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1293                                 struct files_struct *fsp, int leasetype);
1294 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
1295                           struct files_struct *fsp, off_t *poffset,
1296                           off_t *pcount, int *ptype, pid_t *ppid);
1297 int smb_vfs_call_symlink(struct vfs_handle_struct *handle,
1298                         const char *link_contents,
1299                         const struct smb_filename *new_smb_fname);
1300 int smb_vfs_call_readlink(struct vfs_handle_struct *handle,
1301                         const struct smb_filename *smb_fname,
1302                         char *buf,
1303                         size_t bufsiz);
1304 int smb_vfs_call_link(struct vfs_handle_struct *handle,
1305                         const struct smb_filename *old_smb_fname,
1306                         const struct smb_filename *new_smb_fname);
1307 int smb_vfs_call_mknod(struct vfs_handle_struct *handle,
1308                         const struct smb_filename *smb_fname,
1309                         mode_t mode,
1310                         SMB_DEV_T dev);
1311 struct smb_filename *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1312                         TALLOC_CTX *ctx,
1313                         const struct smb_filename *smb_fname);
1314 int smb_vfs_call_chflags(struct vfs_handle_struct *handle,
1315                         const struct smb_filename *smb_fname,
1316                         unsigned int flags);
1317 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1318                                            const SMB_STRUCT_STAT *sbuf);
1319 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1320                                  struct files_struct *fsp,
1321                                  const struct smb_filename *smb_fname,
1322                                  TALLOC_CTX *mem_ctx,
1323                                  unsigned int *num_streams,
1324                                  struct stream_struct **streams);
1325 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1326                                    const char *path, const char *name,
1327                                    TALLOC_CTX *mem_ctx, char **found_name);
1328 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1329                                      const struct smb_filename *smb_fname);
1330 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
1331                                        struct byte_range_lock *br_lck,
1332                                        struct lock_struct *plock,
1333                                        bool blocking_lock);
1334 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
1335                                      struct messaging_context *msg_ctx,
1336                                      struct byte_range_lock *br_lck,
1337                                      const struct lock_struct *plock);
1338 bool smb_vfs_call_brl_cancel_windows(struct vfs_handle_struct *handle,
1339                                      struct byte_range_lock *br_lck,
1340                                      struct lock_struct *plock);
1341 bool smb_vfs_call_strict_lock_check(struct vfs_handle_struct *handle,
1342                                     struct files_struct *fsp,
1343                                     struct lock_struct *plock);
1344 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1345                                      const char *name,
1346                                      enum vfs_translate_direction direction,
1347                                      TALLOC_CTX *mem_ctx,
1348                                      char **mapped_name);
1349 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
1350                             struct files_struct *fsp,
1351                             TALLOC_CTX *ctx,
1352                             uint32_t function,
1353                             uint16_t req_flags,
1354                             const uint8_t *_in_data,
1355                             uint32_t in_len,
1356                             uint8_t **_out_data,
1357                             uint32_t max_out_len,
1358                             uint32_t *out_len);
1359 NTSTATUS smb_vfs_call_get_dos_attributes(struct vfs_handle_struct *handle,
1360                                          struct smb_filename *smb_fname,
1361                                          uint32_t *dosmode);
1362 NTSTATUS smb_vfs_call_fget_dos_attributes(struct vfs_handle_struct *handle,
1363                                           struct files_struct *fsp,
1364                                           uint32_t *dosmode);
1365 NTSTATUS smb_vfs_call_set_dos_attributes(struct vfs_handle_struct *handle,
1366                                          const struct smb_filename *smb_fname,
1367                                          uint32_t dosmode);
1368 NTSTATUS smb_vfs_call_fset_dos_attributes(struct vfs_handle_struct *handle,
1369                                           struct files_struct *fsp,
1370                                           uint32_t dosmode);
1371 struct tevent_req *smb_vfs_call_get_dos_attributes_send(
1372                         TALLOC_CTX *mem_ctx,
1373                         const struct smb_vfs_ev_glue *evg,
1374                         struct vfs_handle_struct *handle,
1375                         files_struct *dir_fsp,
1376                         struct smb_filename *smb_fname);
1377 NTSTATUS smb_vfs_call_get_dos_attributes_recv(
1378                         struct tevent_req *req,
1379                         struct vfs_aio_state *aio_state,
1380                         uint32_t *dosmode);
1381 struct tevent_req *smb_vfs_call_offload_read_send(
1382         TALLOC_CTX *mem_ctx,
1383         struct tevent_context *ev,
1384         struct vfs_handle_struct *handle,
1385         struct files_struct *fsp,
1386         uint32_t fsctl,
1387         uint32_t ttl,
1388         off_t offset,
1389         size_t to_copy);
1390 NTSTATUS smb_vfs_call_offload_read_recv(struct tevent_req *req,
1391                                         struct vfs_handle_struct *handle,
1392                                         TALLOC_CTX *mem_ctx,
1393                                         DATA_BLOB *token_blob);
1394 struct tevent_req *smb_vfs_call_offload_write_send(struct vfs_handle_struct *handle,
1395                                                    TALLOC_CTX *mem_ctx,
1396                                                    struct tevent_context *ev,
1397                                                    uint32_t fsctl,
1398                                                    DATA_BLOB *token,
1399                                                    off_t transfer_offset,
1400                                                    struct files_struct *dest_fsp,
1401                                                    off_t dest_off,
1402                                                    off_t num);
1403 NTSTATUS smb_vfs_call_offload_write_recv(struct vfs_handle_struct *handle,
1404                                          struct tevent_req *req,
1405                                          off_t *copied);
1406 NTSTATUS smb_vfs_call_get_compression(struct vfs_handle_struct *handle,
1407                                       TALLOC_CTX *mem_ctx,
1408                                       struct files_struct *fsp,
1409                                       struct smb_filename *smb_fname,
1410                                       uint16_t *_compression_fmt);
1411 NTSTATUS smb_vfs_call_set_compression(struct vfs_handle_struct *handle,
1412                                       TALLOC_CTX *mem_ctx,
1413                                       struct files_struct *fsp,
1414                                       uint16_t compression_fmt);
1415 NTSTATUS smb_vfs_call_snap_check_path(vfs_handle_struct *handle,
1416                                       TALLOC_CTX *mem_ctx,
1417                                       const char *service_path,
1418                                       char **base_volume);
1419 NTSTATUS smb_vfs_call_snap_create(struct vfs_handle_struct *handle,
1420                                   TALLOC_CTX *mem_ctx,
1421                                   const char *base_volume,
1422                                   time_t *tstamp,
1423                                   bool rw,
1424                                   char **base_path,
1425                                   char **snap_path);
1426 NTSTATUS smb_vfs_call_snap_delete(struct vfs_handle_struct *handle,
1427                                   TALLOC_CTX *mem_ctx,
1428                                   char *base_path,
1429                                   char *snap_path);
1430 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1431                                   struct files_struct *fsp,
1432                                   uint32_t security_info,
1433                                   TALLOC_CTX *mem_ctx,
1434                                   struct security_descriptor **ppdesc);
1435 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1436                                  const struct smb_filename *smb_fname,
1437                                  uint32_t security_info,
1438                                  TALLOC_CTX *mem_ctx,
1439                                  struct security_descriptor **ppdesc);
1440 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1441                                   struct files_struct *fsp,
1442                                   uint32_t security_info_sent,
1443                                   const struct security_descriptor *psd);
1444 NTSTATUS smb_vfs_call_audit_file(struct vfs_handle_struct *handle,
1445                                  struct smb_filename *file,
1446                                  struct security_acl *sacl,
1447                                  uint32_t access_requested,
1448                                  uint32_t access_denied);
1449 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle,
1450                                 const struct smb_filename *file,
1451                                 mode_t mode);
1452 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1453                                         const struct smb_filename *smb_fname,
1454                                         SMB_ACL_TYPE_T type,
1455                                         TALLOC_CTX *mem_ctx);
1456 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1457                                       struct files_struct *fsp,
1458                                       TALLOC_CTX *mem_ctx);
1459 int smb_vfs_call_sys_acl_blob_get_file(struct vfs_handle_struct *handle,
1460                                        const struct smb_filename *smb_fname,
1461                                        TALLOC_CTX *mem_ctx,
1462                                        char **blob_description,
1463                                        DATA_BLOB *blob);
1464 int smb_vfs_call_sys_acl_blob_get_fd(struct vfs_handle_struct *handle,
1465                                      struct files_struct *fsp,  
1466                                      TALLOC_CTX *mem_ctx,
1467                                      char **blob_description,
1468                                      DATA_BLOB *blob);
1469 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1470                                 const struct smb_filename *smb_fname,
1471                                 SMB_ACL_TYPE_T acltype,
1472                                 SMB_ACL_T theacl);
1473 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1474                                 struct files_struct *fsp, SMB_ACL_T theacl);
1475 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1476                                 const struct smb_filename *smb_fname);
1477 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1478                                 const struct smb_filename *smb_fname,
1479                                 const char *name,
1480                                 void *value,
1481                                 size_t size);
1482 struct tevent_req *smb_vfs_call_getxattrat_send(
1483                         TALLOC_CTX *mem_ctx,
1484                         struct tevent_context *ev,
1485                         struct vfs_handle_struct *handle,
1486                         files_struct *dir_fsp,
1487                         const struct smb_filename *smb_fname,
1488                         const char *xattr_name,
1489                         size_t alloc_hint);
1490 ssize_t smb_vfs_call_getxattrat_recv(struct tevent_req *req,
1491                                      struct vfs_aio_state *aio_state,
1492                                      TALLOC_CTX *mem_ctx,
1493                                      uint8_t **xattr_value);
1494 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1495                                struct files_struct *fsp, const char *name,
1496                                void *value, size_t size);
1497 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1498                                 const struct smb_filename *smb_fname,
1499                                 char *list,
1500                                 size_t size);
1501 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1502                                 struct files_struct *fsp, char *list,
1503                                 size_t size);
1504 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1505                                 const struct smb_filename *smb_fname,
1506                                 const char *name);
1507 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1508                               struct files_struct *fsp, const char *name);
1509 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle,
1510                                 const struct smb_filename *smb_fname,
1511                                 const char *name,
1512                                 const void *value,
1513                                 size_t size,
1514                                 int flags);
1515 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1516                            const char *name, const void *value, size_t size,
1517                            int flags);
1518 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1519                            struct files_struct *fsp, const char *name,
1520                            const void *value, size_t size, int flags);
1521 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1522                             struct files_struct *fsp);
1523 NTSTATUS smb_vfs_call_durable_cookie(struct vfs_handle_struct *handle,
1524                                      struct files_struct *fsp,
1525                                      TALLOC_CTX *mem_ctx,
1526                                      DATA_BLOB *cookie);
1527 NTSTATUS smb_vfs_call_durable_disconnect(struct vfs_handle_struct *handle,
1528                                          struct files_struct *fsp,
1529                                          const DATA_BLOB old_cookie,
1530                                          TALLOC_CTX *mem_ctx,
1531                                          DATA_BLOB *new_cookie);
1532 NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
1533                                         struct smb_request *smb1req,
1534                                         struct smbXsrv_open *op,
1535                                         const DATA_BLOB old_cookie,
1536                                         TALLOC_CTX *mem_ctx,
1537                                         struct files_struct **fsp,
1538                                         DATA_BLOB *new_cookie);
1539 NTSTATUS smb_vfs_call_readdir_attr(struct vfs_handle_struct *handle,
1540                                    const struct smb_filename *fname,
1541                                    TALLOC_CTX *mem_ctx,
1542                                    struct readdir_attr_data **attr_data);
1543
1544 NTSTATUS smb_register_vfs(int version, const char *name,
1545                           const struct vfs_fn_pointers *fns);
1546 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
1547                                    files_struct *fsp, size_t ext_size,
1548                                    void (*destroy_fn)(void *p_data));
1549 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1550 void vfs_remove_all_fsp_extensions(struct files_struct *fsp);
1551 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1552 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1553
1554 void smb_vfs_assert_all_fns(const struct vfs_fn_pointers* fns,
1555                             const char *module);
1556
1557 /*
1558  * Notice the "Design of the smb_vfs_ev_glue infrastructure"
1559  * comment in source3/smbd/vfs.c!
1560  *
1561  * This explains smb_vfs_ev_glue infrastructure in detail.
1562  */
1563 struct tevent_context *smb_vfs_ev_glue_ev_ctx(const struct smb_vfs_ev_glue *evg);
1564 struct pthreadpool_tevent *smb_vfs_ev_glue_tp_fd_safe(const struct smb_vfs_ev_glue *evg);
1565 struct pthreadpool_tevent *smb_vfs_ev_glue_tp_path_safe(const struct smb_vfs_ev_glue *evg);
1566 struct pthreadpool_tevent *smb_vfs_ev_glue_tp_chdir_safe(const struct smb_vfs_ev_glue *evg);
1567 const struct smb_vfs_ev_glue *smb_vfs_ev_glue_get_root_glue(const struct smb_vfs_ev_glue *evg);
1568 struct smb_vfs_ev_glue *smb_vfs_ev_glue_create(TALLOC_CTX *mem_ctx,
1569                                 struct tevent_context *user_ev,
1570                                 struct pthreadpool_tevent *user_tp_fd_safe,
1571                                 struct pthreadpool_tevent *user_tp_path_safe,
1572                                 struct pthreadpool_tevent *user_tp_chdir_safe,
1573                                 struct tevent_context *root_ev,
1574                                 struct pthreadpool_tevent *root_tp_fd_safe,
1575                                 struct pthreadpool_tevent *root_tp_path_safe,
1576                                 struct pthreadpool_tevent *root_tp_chdir_safe);
1577 struct smb_vfs_ev_glue *smb_vfs_ev_glue_create_switch(
1578                         TALLOC_CTX *mem_ctx,
1579                         const struct smb_vfs_ev_glue *return_evg,
1580                         const struct smb_vfs_ev_glue *run_evg);
1581
1582 /*
1583  * Helper functions from source3/modules/vfs_not_implemented.c
1584  */
1585 int vfs_not_implemented_connect(
1586                         vfs_handle_struct *handle,
1587                         const char *service,
1588                         const char *user);
1589 void vfs_not_implemented_disconnect(vfs_handle_struct *handle);
1590 uint64_t vfs_not_implemented_disk_free(vfs_handle_struct *handle,
1591                                 const struct smb_filename *smb_fname,
1592                                 uint64_t *bsize,
1593                                 uint64_t *dfree,
1594                                 uint64_t *dsize);
1595 int vfs_not_implemented_get_quota(vfs_handle_struct *handle,
1596                                 const struct smb_filename *smb_fname,
1597                                 enum SMB_QUOTA_TYPE qtype,
1598                                 unid_t id,
1599                                 SMB_DISK_QUOTA *dq);
1600 int vfs_not_implemented_set_quota(vfs_handle_struct *handle,
1601                                   enum SMB_QUOTA_TYPE qtype,
1602                                   unid_t id, SMB_DISK_QUOTA *dq);
1603 int vfs_not_implemented_get_shadow_copy_data(vfs_handle_struct *handle,
1604                                 files_struct *fsp,
1605                                 struct shadow_copy_data *shadow_copy_data,
1606                                 bool labels);
1607 int vfs_not_implemented_statvfs(struct vfs_handle_struct *handle,
1608                                 const struct smb_filename *smb_fname,
1609                                 struct vfs_statvfs_struct *statbuf);
1610 uint32_t vfs_not_implemented_fs_capabilities(struct vfs_handle_struct *handle,
1611                                 enum timestamp_set_resolution *p_ts_res);
1612 NTSTATUS vfs_not_implemented_get_dfs_referrals(struct vfs_handle_struct *handle,
1613                                                struct dfs_GetDFSReferral *r);
1614 DIR *vfs_not_implemented_opendir(vfs_handle_struct *handle,
1615                         const struct smb_filename *smb_fname,
1616                         const char *mask,
1617                         uint32_t attr);
1618 NTSTATUS vfs_not_implemented_snap_check_path(struct vfs_handle_struct *handle,
1619                                 TALLOC_CTX *mem_ctx,
1620                                 const char *service_path,
1621                                 char **base_volume);
1622 NTSTATUS vfs_not_implemented_snap_create(struct vfs_handle_struct *handle,
1623                                          TALLOC_CTX *mem_ctx,
1624                                          const char *base_volume,
1625                                          time_t *tstamp,
1626                                          bool rw,
1627                                          char **base_path,
1628                                          char **snap_path);
1629 NTSTATUS vfs_not_implemented_snap_delete(struct vfs_handle_struct *handle,
1630                                          TALLOC_CTX *mem_ctx,
1631                                          char *base_path,
1632                                          char *snap_path);
1633 DIR *vfs_not_implemented_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
1634                                    const char *mask, uint32_t attr);
1635 struct dirent *vfs_not_implemented_readdir(vfs_handle_struct *handle,
1636                                            DIR *dirp, SMB_STRUCT_STAT *sbuf);
1637 void vfs_not_implemented_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset);
1638 long vfs_not_implemented_telldir(vfs_handle_struct *handle, DIR *dirp);
1639 void vfs_not_implemented_rewind_dir(vfs_handle_struct *handle, DIR *dirp);
1640 int vfs_not_implemented_mkdir(vfs_handle_struct *handle,
1641                 const struct smb_filename *smb_fname,
1642                 mode_t mode);
1643 int vfs_not_implemented_rmdir(vfs_handle_struct *handle,
1644                 const struct smb_filename *smb_fname);
1645 int vfs_not_implemented_closedir(vfs_handle_struct *handle, DIR *dir);
1646 int vfs_not_implemented_open(vfs_handle_struct *handle,
1647                              struct smb_filename *smb_fname,
1648                              files_struct *fsp, int flags, mode_t mode);
1649 NTSTATUS vfs_not_implemented_create_file(struct vfs_handle_struct *handle,
1650                                 struct smb_request *req,
1651                                 uint16_t root_dir_fid,
1652                                 struct smb_filename *smb_fname,
1653                                 uint32_t access_mask,
1654                                 uint32_t share_access,
1655                                 uint32_t create_disposition,
1656                                 uint32_t create_options,
1657                                 uint32_t file_attributes,
1658                                 uint32_t oplock_request,
1659                                 struct smb2_lease *lease,
1660                                 uint64_t allocation_size,
1661                                 uint32_t private_flags,
1662                                 struct security_descriptor *sd,
1663                                 struct ea_list *ea_list,
1664                                 files_struct **result, int *pinfo,
1665                                 const struct smb2_create_blobs *in_context_blobs,
1666                                 struct smb2_create_blobs *out_context_blobs);
1667 int vfs_not_implemented_close_fn(vfs_handle_struct *handle, files_struct *fsp);
1668 ssize_t vfs_not_implemented_pread(vfs_handle_struct *handle, files_struct *fsp,
1669                                   void *data, size_t n, off_t offset);
1670 struct tevent_req *vfs_not_implemented_pread_send(struct vfs_handle_struct *handle,
1671                                                   TALLOC_CTX *mem_ctx,
1672                                                   struct tevent_context *ev,
1673                                                   struct files_struct *fsp,
1674                                                   void *data, size_t n, off_t offset);
1675 ssize_t vfs_not_implemented_pread_recv(struct tevent_req *req,
1676                                        struct vfs_aio_state *vfs_aio_state);
1677 ssize_t vfs_not_implemented_pwrite(vfs_handle_struct *handle, files_struct *fsp,
1678                                    const void *data, size_t n, off_t offset);
1679 struct tevent_req *vfs_not_implemented_pwrite_send(struct vfs_handle_struct *handle,
1680                                                    TALLOC_CTX *mem_ctx,
1681                                                    struct tevent_context *ev,
1682                                                    struct files_struct *fsp,
1683                                                    const void *data,
1684                                                    size_t n, off_t offset);
1685 ssize_t vfs_not_implemented_pwrite_recv(struct tevent_req *req,
1686                                 struct vfs_aio_state *vfs_aio_state);
1687 off_t vfs_not_implemented_lseek(vfs_handle_struct *handle, files_struct *fsp,
1688                         off_t offset, int whence);
1689 ssize_t vfs_not_implemented_sendfile(vfs_handle_struct *handle, int tofd,
1690                                      files_struct *fromfsp, const DATA_BLOB *hdr,
1691                                      off_t offset, size_t n);
1692 ssize_t vfs_not_implemented_recvfile(vfs_handle_struct *handle, int fromfd,
1693                                      files_struct *tofsp, off_t offset, size_t n);
1694 int vfs_not_implemented_rename(vfs_handle_struct *handle,
1695                                const struct smb_filename *smb_fname_src,
1696                                const struct smb_filename *smb_fname_dst);
1697 struct tevent_req *vfs_not_implemented_fsync_send(struct vfs_handle_struct *handle,
1698                                                   TALLOC_CTX *mem_ctx,
1699                                                   struct tevent_context *ev,
1700                                                   struct files_struct *fsp);
1701 int vfs_not_implemented_fsync_recv(struct tevent_req *req,
1702                                    struct vfs_aio_state *vfs_aio_state);
1703 int vfs_not_implemented_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname);
1704 int vfs_not_implemented_fstat(vfs_handle_struct *handle, files_struct *fsp,
1705                         SMB_STRUCT_STAT *sbuf);
1706 int vfs_not_implemented_lstat(vfs_handle_struct *handle,
1707                               struct smb_filename *smb_fname);
1708 uint64_t vfs_not_implemented_get_alloc_size(struct vfs_handle_struct *handle,
1709                                             struct files_struct *fsp,
1710                                             const SMB_STRUCT_STAT *sbuf);
1711 int vfs_not_implemented_unlink(vfs_handle_struct *handle,
1712                                const struct smb_filename *smb_fname);
1713 int vfs_not_implemented_chmod(vfs_handle_struct *handle,
1714                               const struct smb_filename *smb_fname,
1715                               mode_t mode);
1716 int vfs_not_implemented_fchmod(vfs_handle_struct *handle, files_struct *fsp,
1717                                mode_t mode);
1718 int vfs_not_implemented_chown(vfs_handle_struct *handle,
1719                               const struct smb_filename *smb_fname,
1720                               uid_t uid,
1721                               gid_t gid);
1722 int vfs_not_implemented_fchown(vfs_handle_struct *handle, files_struct *fsp,
1723                                uid_t uid, gid_t gid);
1724 int vfs_not_implemented_lchown(vfs_handle_struct *handle,
1725                                const struct smb_filename *smb_fname,
1726                                uid_t uid,
1727                                gid_t gid);
1728 int vfs_not_implemented_chdir(vfs_handle_struct *handle,
1729                               const struct smb_filename *smb_fname);
1730 struct smb_filename *vfs_not_implemented_getwd(vfs_handle_struct *handle,
1731                                                TALLOC_CTX *ctx);
1732 int vfs_not_implemented_ntimes(vfs_handle_struct *handle,
1733                                const struct smb_filename *smb_fname,
1734                                struct smb_file_time *ft);
1735 int vfs_not_implemented_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1736                                   off_t offset);
1737 int vfs_not_implemented_fallocate(vfs_handle_struct *handle, files_struct *fsp,
1738                                   uint32_t mode, off_t offset, off_t len);
1739 bool vfs_not_implemented_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
1740                               off_t offset, off_t count, int type);
1741 int vfs_not_implemented_kernel_flock(struct vfs_handle_struct *handle,
1742                                      struct files_struct *fsp,
1743                                      uint32_t share_mode, uint32_t access_mask);
1744 int vfs_not_implemented_linux_setlease(struct vfs_handle_struct *handle,
1745                                        struct files_struct *fsp, int leasetype);
1746 bool vfs_not_implemented_getlock(vfs_handle_struct *handle, files_struct *fsp,
1747                                  off_t *poffset, off_t *pcount, int *ptype,
1748                                  pid_t *ppid);
1749 int vfs_not_implemented_symlink(vfs_handle_struct *handle,
1750                                 const char *link_contents,
1751                                 const struct smb_filename *new_smb_fname);
1752 int vfs_not_implemented_vfs_readlink(vfs_handle_struct *handle,
1753                                      const struct smb_filename *smb_fname,
1754                                      char *buf,
1755                                      size_t bufsiz);
1756 int vfs_not_implemented_link(vfs_handle_struct *handle,
1757                              const struct smb_filename *old_smb_fname,
1758                              const struct smb_filename *new_smb_fname);
1759 int vfs_not_implemented_mknod(vfs_handle_struct *handle,
1760                               const struct smb_filename *smb_fname,
1761                               mode_t mode,
1762                               SMB_DEV_T dev);
1763 struct smb_filename *vfs_not_implemented_realpath(vfs_handle_struct *handle,
1764                                                   TALLOC_CTX *ctx,
1765                                                   const struct smb_filename *smb_fname);
1766 int vfs_not_implemented_chflags(vfs_handle_struct *handle,
1767                                 const struct smb_filename *smb_fname,
1768                                 uint flags);
1769 struct file_id vfs_not_implemented_file_id_create(vfs_handle_struct *handle,
1770                                                   const SMB_STRUCT_STAT *sbuf);
1771 struct tevent_req *vfs_not_implemented_offload_read_send(
1772                         TALLOC_CTX *mem_ctx,
1773                         struct tevent_context *ev,
1774                         struct vfs_handle_struct *handle,
1775                         struct files_struct *fsp,
1776                         uint32_t fsctl,
1777                         uint32_t ttl,
1778                         off_t offset,
1779                         size_t to_copy);
1780 NTSTATUS vfs_not_implemented_offload_read_recv(struct tevent_req *req,
1781                                        struct vfs_handle_struct *handle,
1782                                        TALLOC_CTX *mem_ctx,
1783                                        DATA_BLOB *_token_blob);
1784 struct tevent_req *vfs_not_implemented_offload_write_send(
1785                         struct vfs_handle_struct *handle,
1786                         TALLOC_CTX *mem_ctx,
1787                         struct tevent_context *ev,
1788                         uint32_t fsctl,
1789                         DATA_BLOB *token,
1790                         off_t transfer_offset,
1791                         struct files_struct *dest_fsp,
1792                         off_t dest_off,
1793                         off_t num);
1794 NTSTATUS vfs_not_implemented_offload_write_recv(struct vfs_handle_struct *handle,
1795                                                 struct tevent_req *req,
1796                                                 off_t *copied);
1797 NTSTATUS vfs_not_implemented_get_compression(struct vfs_handle_struct *handle,
1798                                              TALLOC_CTX *mem_ctx,
1799                                              struct files_struct *fsp,
1800                                              struct smb_filename *smb_fname,
1801                                              uint16_t *_compression_fmt);
1802 NTSTATUS vfs_not_implemented_set_compression(struct vfs_handle_struct *handle,
1803                                              TALLOC_CTX *mem_ctx,
1804                                              struct files_struct *fsp,
1805                                              uint16_t compression_fmt);
1806 NTSTATUS vfs_not_implemented_streaminfo(struct vfs_handle_struct *handle,
1807                                         struct files_struct *fsp,
1808                                         const struct smb_filename *smb_fname,
1809                                         TALLOC_CTX *mem_ctx,
1810                                         unsigned int *num_streams,
1811                                         struct stream_struct **streams);
1812 int vfs_not_implemented_get_real_filename(struct vfs_handle_struct *handle,
1813                                           const char *path,
1814                                           const char *name,
1815                                           TALLOC_CTX *mem_ctx,
1816                                           char **found_name);
1817 const char *vfs_not_implemented_connectpath(struct vfs_handle_struct *handle,
1818                                             const struct smb_filename *smb_fname);
1819 NTSTATUS vfs_not_implemented_brl_lock_windows(struct vfs_handle_struct *handle,
1820                                               struct byte_range_lock *br_lck,
1821                                               struct lock_struct *plock,
1822                                               bool blocking_lock);
1823 bool vfs_not_implemented_brl_unlock_windows(struct vfs_handle_struct *handle,
1824                                             struct messaging_context *msg_ctx,
1825                                             struct byte_range_lock *br_lck,
1826                                             const struct lock_struct *plock);
1827 bool vfs_not_implemented_brl_cancel_windows(struct vfs_handle_struct *handle,
1828                                             struct byte_range_lock *br_lck,
1829                                             struct lock_struct *plock);
1830 bool vfs_not_implemented_strict_lock_check(struct vfs_handle_struct *handle,
1831                                            struct files_struct *fsp,
1832                                            struct lock_struct *plock);
1833 NTSTATUS vfs_not_implemented_translate_name(struct vfs_handle_struct *handle,
1834                                             const char *mapped_name,
1835                                             enum vfs_translate_direction direction,
1836                                             TALLOC_CTX *mem_ctx, char **pmapped_name);
1837 NTSTATUS vfs_not_implemented_fsctl(struct vfs_handle_struct *handle,
1838                                    struct files_struct *fsp,
1839                                    TALLOC_CTX *ctx,
1840                                    uint32_t function,
1841                                    uint16_t req_flags,  /* Needed for UNICODE ... */
1842                                    const uint8_t *_in_data,
1843                                    uint32_t in_len,
1844                                    uint8_t **_out_data,
1845                                    uint32_t max_out_len, uint32_t *out_len);
1846 NTSTATUS vfs_not_implemented_readdir_attr(struct vfs_handle_struct *handle,
1847                                           const struct smb_filename *fname,
1848                                           TALLOC_CTX *mem_ctx,
1849                                           struct readdir_attr_data **pattr_data);
1850 NTSTATUS vfs_not_implemented_get_dos_attributes(struct vfs_handle_struct *handle,
1851                                                 struct smb_filename *smb_fname,
1852                                                 uint32_t *dosmode);
1853 struct tevent_req *vfs_not_implemented_get_dos_attributes_send(
1854                         TALLOC_CTX *mem_ctx,
1855                         const struct smb_vfs_ev_glue *evg,
1856                         struct vfs_handle_struct *handle,
1857                         files_struct *dir_fsp,
1858                         struct smb_filename *smb_fname);
1859 NTSTATUS vfs_not_implemented_get_dos_attributes_recv(
1860                         struct tevent_req *req,
1861                         struct vfs_aio_state *aio_state,
1862                         uint32_t *dosmode);
1863 NTSTATUS vfs_not_implemented_fget_dos_attributes(struct vfs_handle_struct *handle,
1864                                                  struct files_struct *fsp,
1865                                                  uint32_t *dosmode);
1866 NTSTATUS vfs_not_implemented_set_dos_attributes(struct vfs_handle_struct *handle,
1867                                                 const struct smb_filename *smb_fname,
1868                                                 uint32_t dosmode);
1869 NTSTATUS vfs_not_implemented_fset_dos_attributes(struct vfs_handle_struct *handle,
1870                                                  struct files_struct *fsp,
1871                                                  uint32_t dosmode);
1872 NTSTATUS vfs_not_implemented_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1873                                          uint32_t security_info,
1874                                          TALLOC_CTX *mem_ctx,
1875                                          struct security_descriptor **ppdesc);
1876 NTSTATUS vfs_not_implemented_get_nt_acl(vfs_handle_struct *handle,
1877                                         const struct smb_filename *smb_fname,
1878                                         uint32_t security_info,
1879                                         TALLOC_CTX *mem_ctx,
1880                                         struct security_descriptor **ppdesc);
1881 NTSTATUS vfs_not_implemented_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1882                                          uint32_t security_info_sent,
1883                                          const struct security_descriptor *psd);
1884 SMB_ACL_T vfs_not_implemented_sys_acl_get_file(vfs_handle_struct *handle,
1885                                                const struct smb_filename *smb_fname,
1886                                                SMB_ACL_TYPE_T type,
1887                                                TALLOC_CTX *mem_ctx);
1888 SMB_ACL_T vfs_not_implemented_sys_acl_get_fd(vfs_handle_struct *handle,
1889                                              files_struct *fsp, TALLOC_CTX *mem_ctx);
1890 int vfs_not_implemented_sys_acl_blob_get_file(vfs_handle_struct *handle,
1891                                 const struct smb_filename *smb_fname,
1892                                 TALLOC_CTX *mem_ctx,
1893                                 char **blob_description,
1894                                 DATA_BLOB *blob);
1895 int vfs_not_implemented_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1896                                 files_struct *fsp, TALLOC_CTX *mem_ctx,
1897                                 char **blob_description, DATA_BLOB *blob);
1898 int vfs_not_implemented_sys_acl_set_file(vfs_handle_struct *handle,
1899                                 const struct smb_filename *smb_fname,
1900                                 SMB_ACL_TYPE_T acltype,
1901                                 SMB_ACL_T theacl);
1902 int vfs_not_implemented_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1903                                        SMB_ACL_T theacl);
1904 int vfs_not_implemented_sys_acl_delete_def_file(vfs_handle_struct *handle,
1905                                         const struct smb_filename *smb_fname);
1906 ssize_t vfs_not_implemented_getxattr(vfs_handle_struct *handle,
1907                                 const struct smb_filename *smb_fname,
1908                                 const char *name,
1909                                 void *value,
1910                                 size_t size);
1911 struct tevent_req *vfs_not_implemented_getxattrat_send(
1912                         TALLOC_CTX *mem_ctx,
1913                         struct tevent_context *ev,
1914                         struct vfs_handle_struct *handle,
1915                         files_struct *dir_fsp,
1916                         const struct smb_filename *smb_fname,
1917                         const char *xattr_name,
1918                         size_t alloc_hint);
1919 ssize_t vfs_not_implemented_getxattrat_recv(struct tevent_req *req,
1920                                     struct vfs_aio_state *aio_state,
1921                                     TALLOC_CTX *mem_ctx,
1922                                     uint8_t **xattr_value);
1923 ssize_t vfs_not_implemented_fgetxattr(vfs_handle_struct *handle,
1924                               struct files_struct *fsp, const char *name,
1925                               void *value, size_t size);
1926 ssize_t vfs_not_implemented_listxattr(vfs_handle_struct *handle,
1927                                       const struct smb_filename *smb_fname,
1928                                       char *list,
1929                                       size_t size);
1930 ssize_t vfs_not_implemented_flistxattr(vfs_handle_struct *handle,
1931                                        struct files_struct *fsp, char *list,
1932                                        size_t size);
1933 int vfs_not_implemented_removexattr(vfs_handle_struct *handle,
1934                                     const struct smb_filename *smb_fname,
1935                                     const char *name);
1936 int vfs_not_implemented_fremovexattr(vfs_handle_struct *handle,
1937                                      struct files_struct *fsp, const char *name);
1938 int vfs_not_implemented_setxattr(vfs_handle_struct *handle,
1939                                  const struct smb_filename *smb_fname,
1940                                  const char *name,
1941                                  const void *value,
1942                                  size_t size,
1943                                  int flags);
1944 int vfs_not_implemented_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1945                                   const char *name, const void *value, size_t size,
1946                                   int flags);
1947 bool vfs_not_implemented_aio_force(struct vfs_handle_struct *handle,
1948                                    struct files_struct *fsp);
1949 NTSTATUS vfs_not_implemented_audit_file(struct vfs_handle_struct *handle,
1950                                         struct smb_filename *file,
1951                                         struct security_acl *sacl,
1952                                         uint32_t access_requested,
1953                                         uint32_t access_denied);
1954 NTSTATUS vfs_not_implemented_durable_cookie(struct vfs_handle_struct *handle,
1955                                             struct files_struct *fsp,
1956                                             TALLOC_CTX *mem_ctx,
1957                                             DATA_BLOB *cookie);
1958 NTSTATUS vfs_not_implemented_durable_disconnect(struct vfs_handle_struct *handle,
1959                                                 struct files_struct *fsp,
1960                                                 const DATA_BLOB old_cookie,
1961                                                 TALLOC_CTX *mem_ctx,
1962                                                 DATA_BLOB *new_cookie);
1963 NTSTATUS vfs_not_implemented_durable_reconnect(struct vfs_handle_struct *handle,
1964                                                struct smb_request *smb1req,
1965                                                struct smbXsrv_open *op,
1966                                                const DATA_BLOB old_cookie,
1967                                                TALLOC_CTX *mem_ctx,
1968                                                struct files_struct **fsp,
1969                                                DATA_BLOB *new_cookie);
1970 #endif /* _VFS_H */