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
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.
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.
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/>.
23 This work was sponsored by Optifacio Software Services, Inc.
29 /* Avoid conflict with an AIX include file */
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...
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
45 * If you change anything here, please also update modules/vfs_full_audit.c.
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
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 /* Bump to version 30 - Samba 4.0.0 will ship with interface version 30 */
147 #define SMB_VFS_INTERFACE_VERSION 30
150 All intercepted VFS operations must be declared as static functions inside module source
151 in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
152 example VFS modules for more details.
155 /* VFS operations structure */
157 struct vfs_handle_struct;
158 struct connection_struct;
160 struct security_descriptor;
161 struct vfs_statvfs_struct;
164 struct smb_file_time;
165 struct blocking_lock_record;
167 struct dfs_GetDFSReferral;
169 typedef union unid_t {
177 uint64_t position_information;
179 uint32 private_options; /* NT Create options, but we only look at
180 * NTCREATEX_OPTIONS_PRIVATE_DENY_DOS and
181 * NTCREATEX_OPTIONS_PRIVATE_DENY_FCB and
182 * NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE
183 * for print files *only*, where
184 * DELETE_ON_CLOSE is not stored in the share
187 unsigned long gen_id;
190 typedef struct files_struct {
191 struct files_struct *next, *prev;
193 struct smbXsrv_open *op;
194 struct connection_struct *conn;
195 struct fd_handle *fh;
196 unsigned int num_smb_operations;
197 struct file_id file_id;
198 uint64_t initial_allocation_size; /* Faked up initial allocation on disk. */
200 uint64_t vuid; /* SMB2 compat */
201 struct write_cache *wcp;
202 struct timeval open_time;
203 uint32 access_mask; /* NTCreateX access bits (FILE_READ_DATA etc.) */
204 uint32 share_access; /* NTCreateX share constants (FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE). */
206 bool update_write_time_triggered;
207 struct timed_event *update_write_time_event;
208 bool update_write_time_on_close;
209 struct timespec close_write_time;
210 bool write_time_forced;
213 int sent_oplock_break;
214 struct timed_event *oplock_timeout;
215 struct lock_struct last_lock_failure;
216 int current_lock_count; /* Count the number of outstanding locks and pending locks. */
218 struct share_mode_entry *pending_break_messages;
219 int num_pending_break_messages;
226 bool aio_write_behind;
228 bool initial_delete_on_close; /* Only set at NTCreateX if file was created. */
229 bool delete_on_close;
232 bool backup_intent; /* Handle was successfully opened with backup intent
233 and opener has privilege to do so. */
234 struct smb_filename *fsp_name;
235 uint32_t name_hash; /* Jenkins hash of full pathname. */
236 uint64_t mid; /* Mid of the operation that created us. */
238 struct vfs_fsp_data *vfs_extension;
239 struct fake_file_handle *fake_file_handle;
241 struct notify_change_buf *notify;
243 struct files_struct *base_fsp; /* placeholder for delete on close */
246 * Read-only cached brlock record, thrown away when the
247 * brlock.tdb seqnum changes. This avoids fetching data from
248 * the brlock.tdb on every read/write call.
251 struct byte_range_lock *brlock_rec;
253 struct dptr_struct *dptr;
255 /* if not NULL, means this is a print file */
256 struct print_file_data *print_file;
258 unsigned num_aio_requests;
259 struct tevent_req **aio_requests;
262 * If a close request comes in while we still have aio_requests
263 * around, we need to hold back the close. When all aio_requests are
264 * done, the aio completion routines need tevent_wait_done() on
265 * this. A bit ugly, but before we have close_file() fully async
266 * possibly the simplest approach. Thanks, Jeremy for the idea.
268 struct tevent_req *deferred_close;
271 struct vuid_cache_entry {
272 struct auth_session_info *session_info;
273 uint64_t vuid; /* SMB2 compat */
278 unsigned int next_entry;
279 struct vuid_cache_entry array[VUID_CACHE_SIZE];
285 } name_compare_entry;
287 struct dfree_cached_info {
288 time_t last_dfree_time;
295 struct share_params {
299 typedef struct connection_struct {
300 struct connection_struct *next, *prev;
301 struct smbd_server_connection *sconn; /* can be NULL */
302 struct smbXsrv_tcon *tcon; /* can be NULL */
303 uint32_t cnum; /* an index passed over the wire */
304 struct share_params *params;
306 struct vuid_cache vuid_cache;
309 bool read_only; /* Attributes for the current user of the share. */
310 uint32_t share_access;
311 /* Does this filesystem honor
312 sub second timestamps on files
313 and directories when setting time ? */
314 enum timestamp_set_resolution ts_res;
318 struct vfs_handle_struct *vfs_handles; /* for the new plugins */
321 * This represents the user information on this connection. Depending
322 * on the vuid using this tid, this might change per SMB request.
324 struct auth_session_info *session_info;
327 * If the "force group" parameter is set, this is the primary gid that
328 * may be used in the users token, depending on the vuid using this tid.
330 gid_t force_group_gid;
332 uint64_t vuid; /* vuid of user who *opened* this connection, or UID_FIELD_INVALID */
335 time_t lastused_count;
337 unsigned int num_smb_operations; /* Count of smb operations on this tree. */
341 /* Semantics requested by the client or forced by the server config. */
344 bool short_case_preserve;
346 /* Semantics provided by the underlying filesystem. */
348 /* Device number of the directory of the share mount.
349 Used to ensure unique FileIndex returns. */
350 SMB_DEV_T base_share_dev;
352 name_compare_entry *hide_list; /* Per-share list of files to return as hidden. */
353 name_compare_entry *veto_list; /* Per-share list of files to veto (never show). */
354 name_compare_entry *veto_oplock_list; /* Per-share list of files to refuse oplocks on. */
355 name_compare_entry *aio_write_behind_list; /* Per-share list of files to use aio write behind on. */
356 struct dfree_cached_info *dfree_info;
357 struct trans_state *pending_trans;
359 struct rpc_pipe_client *spoolss_pipe;
363 struct smbd_smb2_request;
364 struct privilege_paths;
370 uint64_t mid; /* For compatibility with SMB2. */
372 uint64_t vuid; /* For compatibility with SMB2. */
381 * Async handling in the main smb processing loop is directed by
382 * outbuf: reply_xxx routines indicate sync behaviour by putting their
383 * reply into "outbuf". If they leave it as NULL, they take care of it
384 * themselves, possibly later.
386 * If async handling is wanted, the reply_xxx routine must make sure
387 * that it talloc_move()s the smb_req somewhere else.
393 connection_struct *conn;
394 struct smbd_server_connection *sconn;
395 struct smb_perfcount_data pcd;
398 * Chained request handling
400 struct files_struct *chain_fsp;
403 * state information for async smb handling
408 * Back pointer to smb2 request.
410 struct smbd_smb2_request *smb2req;
413 * Pathnames used if request done
416 struct privilege_paths *priv_paths;
419 * Request list for chained requests, we're part of it.
421 struct smb_request **chain;
423 struct timeval request_time;
427 * Info about an alternate data stream
430 struct stream_struct {
437 struct smb_file_time {
438 struct timespec mtime;
439 struct timespec atime;
440 struct timespec ctime;
441 struct timespec create_time;
447 struct smb_filename {
450 char *original_lcomp;
454 #define VFS_FIND(__fn__) while (handle->fns->__fn__##_fn==NULL) { \
455 handle = handle->next; \
458 enum vfs_translate_direction {
459 vfs_translate_to_unix = 0,
460 vfs_translate_to_windows
463 enum vfs_fallocate_mode {
464 VFS_FALLOCATE_EXTEND_SIZE = 0,
465 VFS_FALLOCATE_KEEP_SIZE = 1
469 Available VFS operations. These values must be in sync with vfs_ops struct
470 (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
471 In particular, if new operations are added to vfs_ops, appropriate constants
472 should be added to vfs_op_type so that order of them kept same as in vfs_ops.
474 struct shadow_copy_data;
476 struct vfs_fn_pointers {
477 /* Disk operations */
479 int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
480 void (*disconnect_fn)(struct vfs_handle_struct *handle);
481 uint64_t (*disk_free_fn)(struct vfs_handle_struct *handle, const char *path, bool small_query, uint64_t *bsize,
482 uint64_t *dfree, uint64_t *dsize);
483 int (*get_quota_fn)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
484 int (*set_quota_fn)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
485 int (*get_shadow_copy_data_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, struct shadow_copy_data *shadow_copy_data, bool labels);
486 int (*statvfs_fn)(struct vfs_handle_struct *handle, const char *path, struct vfs_statvfs_struct *statbuf);
487 uint32_t (*fs_capabilities_fn)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
490 * Note: that "struct dfs_GetDFSReferral *r"
491 * needs to be a valid TALLOC_CTX
493 NTSTATUS (*get_dfs_referrals_fn)(struct vfs_handle_struct *handle,
494 struct dfs_GetDFSReferral *r);
496 /* Directory operations */
498 DIR *(*opendir_fn)(struct vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attributes);
499 DIR *(*fdopendir_fn)(struct vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32 attributes);
500 struct dirent *(*readdir_fn)(struct vfs_handle_struct *handle,
502 SMB_STRUCT_STAT *sbuf);
503 void (*seekdir_fn)(struct vfs_handle_struct *handle, DIR *dirp, long offset);
504 long (*telldir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
505 void (*rewind_dir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
506 int (*mkdir_fn)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
507 int (*rmdir_fn)(struct vfs_handle_struct *handle, const char *path);
508 int (*closedir_fn)(struct vfs_handle_struct *handle, DIR *dir);
509 void (*init_search_op_fn)(struct vfs_handle_struct *handle, DIR *dirp);
511 /* File operations */
513 int (*open_fn)(struct vfs_handle_struct *handle,
514 struct smb_filename *smb_fname, files_struct *fsp,
515 int flags, mode_t mode);
516 NTSTATUS (*create_file_fn)(struct vfs_handle_struct *handle,
517 struct smb_request *req,
518 uint16_t root_dir_fid,
519 struct smb_filename *smb_fname,
520 uint32_t access_mask,
521 uint32_t share_access,
522 uint32_t create_disposition,
523 uint32_t create_options,
524 uint32_t file_attributes,
525 uint32_t oplock_request,
526 uint64_t allocation_size,
527 uint32_t private_flags,
528 struct security_descriptor *sd,
529 struct ea_list *ea_list,
530 files_struct **result,
532 int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
533 ssize_t (*read_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n);
534 ssize_t (*pread_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, off_t offset);
535 struct tevent_req *(*pread_send_fn)(struct vfs_handle_struct *handle,
537 struct tevent_context *ev,
538 struct files_struct *fsp,
540 size_t n, off_t offset);
541 ssize_t (*pread_recv_fn)(struct tevent_req *req, int *err);
542 ssize_t (*write_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n);
543 ssize_t (*pwrite_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, off_t offset);
544 struct tevent_req *(*pwrite_send_fn)(struct vfs_handle_struct *handle,
546 struct tevent_context *ev,
547 struct files_struct *fsp,
549 size_t n, off_t offset);
550 ssize_t (*pwrite_recv_fn)(struct tevent_req *req, int *err);
551 off_t (*lseek_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset, int whence);
552 ssize_t (*sendfile_fn)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, off_t offset, size_t count);
553 ssize_t (*recvfile_fn)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, off_t offset, size_t count);
554 int (*rename_fn)(struct vfs_handle_struct *handle,
555 const struct smb_filename *smb_fname_src,
556 const struct smb_filename *smb_fname_dst);
557 int (*fsync_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
558 struct tevent_req *(*fsync_send_fn)(struct vfs_handle_struct *handle,
560 struct tevent_context *ev,
561 struct files_struct *fsp);
562 int (*fsync_recv_fn)(struct tevent_req *req, int *err);
563 int (*stat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
564 int (*fstat_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
565 int (*lstat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
566 uint64_t (*get_alloc_size_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
567 int (*unlink_fn)(struct vfs_handle_struct *handle,
568 const struct smb_filename *smb_fname);
569 int (*chmod_fn)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
570 int (*fchmod_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
571 int (*chown_fn)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
572 int (*fchown_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
573 int (*lchown_fn)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
574 int (*chdir_fn)(struct vfs_handle_struct *handle, const char *path);
575 char *(*getwd_fn)(struct vfs_handle_struct *handle);
576 int (*ntimes_fn)(struct vfs_handle_struct *handle,
577 const struct smb_filename *smb_fname,
578 struct smb_file_time *ft);
579 int (*ftruncate_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset);
580 int (*fallocate_fn)(struct vfs_handle_struct *handle,
581 struct files_struct *fsp,
582 enum vfs_fallocate_mode mode,
585 bool (*lock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, off_t offset, off_t count, int type);
586 int (*kernel_flock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
587 uint32 share_mode, uint32_t access_mask);
588 int (*linux_setlease_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
589 bool (*getlock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid);
590 int (*symlink_fn)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
591 int (*readlink_fn)(struct vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz);
592 int (*link_fn)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
593 int (*mknod_fn)(struct vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev);
594 char *(*realpath_fn)(struct vfs_handle_struct *handle, const char *path);
595 NTSTATUS (*notify_watch_fn)(struct vfs_handle_struct *handle,
596 struct sys_notify_context *ctx,
599 uint32_t *subdir_filter,
600 void (*callback)(struct sys_notify_context *ctx,
602 struct notify_event *ev),
605 int (*chflags_fn)(struct vfs_handle_struct *handle, const char *path, unsigned int flags);
606 struct file_id (*file_id_create_fn)(struct vfs_handle_struct *handle,
607 const SMB_STRUCT_STAT *sbuf);
609 NTSTATUS (*streaminfo_fn)(struct vfs_handle_struct *handle,
610 struct files_struct *fsp,
613 unsigned int *num_streams,
614 struct stream_struct **streams);
616 int (*get_real_filename_fn)(struct vfs_handle_struct *handle,
622 const char *(*connectpath_fn)(struct vfs_handle_struct *handle,
623 const char *filename);
625 NTSTATUS (*brl_lock_windows_fn)(struct vfs_handle_struct *handle,
626 struct byte_range_lock *br_lck,
627 struct lock_struct *plock,
629 struct blocking_lock_record *blr);
631 bool (*brl_unlock_windows_fn)(struct vfs_handle_struct *handle,
632 struct messaging_context *msg_ctx,
633 struct byte_range_lock *br_lck,
634 const struct lock_struct *plock);
636 bool (*brl_cancel_windows_fn)(struct vfs_handle_struct *handle,
637 struct byte_range_lock *br_lck,
638 struct lock_struct *plock,
639 struct blocking_lock_record *blr);
641 bool (*strict_lock_fn)(struct vfs_handle_struct *handle,
642 struct files_struct *fsp,
643 struct lock_struct *plock);
645 void (*strict_unlock_fn)(struct vfs_handle_struct *handle,
646 struct files_struct *fsp,
647 struct lock_struct *plock);
649 NTSTATUS (*translate_name_fn)(struct vfs_handle_struct *handle,
651 enum vfs_translate_direction direction,
655 NTSTATUS (*fsctl_fn)(struct vfs_handle_struct *handle,
656 struct files_struct *fsp,
660 const uint8_t *_in_data,
663 uint32_t max_out_len,
666 /* NT ACL operations. */
668 NTSTATUS (*fget_nt_acl_fn)(struct vfs_handle_struct *handle,
669 struct files_struct *fsp,
670 uint32 security_info,
671 struct security_descriptor **ppdesc);
672 NTSTATUS (*get_nt_acl_fn)(struct vfs_handle_struct *handle,
674 uint32 security_info,
675 struct security_descriptor **ppdesc);
676 NTSTATUS (*fset_nt_acl_fn)(struct vfs_handle_struct *handle,
677 struct files_struct *fsp,
678 uint32 security_info_sent,
679 const struct security_descriptor *psd);
681 NTSTATUS (*audit_file_fn)(struct vfs_handle_struct *handle,
682 struct smb_filename *file,
683 struct security_acl *sacl,
684 uint32_t access_requested,
685 uint32_t access_denied);
687 /* POSIX ACL operations. */
689 int (*chmod_acl_fn)(struct vfs_handle_struct *handle, const char *name, mode_t mode);
690 int (*fchmod_acl_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
692 SMB_ACL_T (*sys_acl_get_file_fn)(struct vfs_handle_struct *handle, const char *path_p, SMB_ACL_TYPE_T type);
693 SMB_ACL_T (*sys_acl_get_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
694 int (*sys_acl_set_file_fn)(struct vfs_handle_struct *handle, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl);
695 int (*sys_acl_set_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
696 int (*sys_acl_delete_def_file_fn)(struct vfs_handle_struct *handle, const char *path);
699 ssize_t (*getxattr_fn)(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size);
700 ssize_t (*fgetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
701 ssize_t (*listxattr_fn)(struct vfs_handle_struct *handle, const char *path, char *list, size_t size);
702 ssize_t (*flistxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
703 int (*removexattr_fn)(struct vfs_handle_struct *handle, const char *path, const char *name);
704 int (*fremovexattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
705 int (*setxattr_fn)(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags);
706 int (*fsetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
709 bool (*aio_force_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
711 /* offline operations */
712 bool (*is_offline_fn)(struct vfs_handle_struct *handle,
713 const struct smb_filename *fname,
714 SMB_STRUCT_STAT *sbuf);
715 int (*set_offline_fn)(struct vfs_handle_struct *handle,
716 const struct smb_filename *fname);
718 /* durable handle operations */
719 NTSTATUS (*durable_cookie_fn)(struct vfs_handle_struct *handle,
720 struct files_struct *fsp,
723 NTSTATUS (*durable_disconnect_fn)(struct vfs_handle_struct *handle,
724 struct files_struct *fsp,
725 const DATA_BLOB old_cookie,
727 DATA_BLOB *new_cookie);
728 NTSTATUS (*durable_reconnect_fn)(struct vfs_handle_struct *handle,
729 struct smb_request *smb1req,
730 struct smbXsrv_open *op,
731 const DATA_BLOB old_cookie,
733 struct files_struct **fsp,
734 DATA_BLOB *new_cookie);
738 VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
739 which describes all operations this module is willing to intercept.
740 VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
741 using this information.
744 typedef struct vfs_handle_struct {
745 struct vfs_handle_struct *next, *prev;
747 struct connection_struct *conn;
748 const struct vfs_fn_pointers *fns;
750 void (*free_data)(void **data);
754 typedef struct vfs_statvfs_struct {
755 /* For undefined recommended transfer size return -1 in that field */
756 uint32 OptimalTransferSize; /* bsize on some os, iosize on other os */
760 The next three fields are in terms of the block size.
761 (above). If block size is unknown, 4096 would be a
762 reasonable block size for a server to report.
763 Note that returning the blocks/blocksavail removes need
764 to make a second call (to QFSInfo level 0x103 to get this info.
765 UserBlockAvail is typically less than or equal to BlocksAvail,
766 if no distinction is made return the same value in each.
769 uint64_t TotalBlocks;
770 uint64_t BlocksAvail; /* bfree */
771 uint64_t UserBlocksAvail; /* bavail */
773 /* For undefined Node fields or FSID return -1 */
774 uint64_t TotalFileNodes;
775 uint64_t FreeFileNodes;
776 uint64_t FsIdentifier; /* fsid */
777 /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
778 /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call */
781 } vfs_statvfs_struct;
783 /* Add a new FSP extension of the given type. Returns a pointer to the
786 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn) \
787 vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
789 /* Return a pointer to the existing FSP extension data. */
790 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
791 vfs_fetch_fsp_extension(handle, (fsp))
793 /* Return the talloc context associated with an FSP extension. */
794 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
795 vfs_memctx_fsp_extension(handle, (fsp))
797 /* Remove and destroy an FSP extension. */
798 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
799 vfs_remove_fsp_extension((handle), (fsp))
801 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
802 if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
803 DEBUG(0,("%s() failed to get vfs_handle->data!\n",__FUNCTION__)); \
808 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
810 DEBUG(0,("%s() failed to set handle->data!\n",__FUNCTION__)); \
813 if ((handle)->free_data) { \
814 (handle)->free_data(&(handle)->data); \
816 (handle)->data = (void *)datap; \
817 (handle)->free_data = free_fn; \
821 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
822 if ((handle) && (handle)->free_data) { \
823 (handle)->free_data(&(handle)->data); \
827 /* Check whether module-specific data handle was already allocated or not */
828 #define SMB_VFS_HANDLE_TEST_DATA(handle) ( !(handle) || !(handle)->data ? False : True )
830 #define SMB_VFS_OP(x) ((void *) x)
832 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
834 #include "vfs_macros.h"
836 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
837 const char *service, const char *user);
838 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
839 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
840 const char *path, bool small_query,
841 uint64_t *bsize, uint64_t *dfree,
843 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
844 enum SMB_QUOTA_TYPE qtype, unid_t id,
846 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
847 enum SMB_QUOTA_TYPE qtype, unid_t id,
849 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
850 struct files_struct *fsp,
851 struct shadow_copy_data *shadow_copy_data,
853 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
854 struct vfs_statvfs_struct *statbuf);
855 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
856 enum timestamp_set_resolution *p_ts_res);
858 * Note: that "struct dfs_GetDFSReferral *r" needs to be a valid TALLOC_CTX
860 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
861 struct dfs_GetDFSReferral *r);
862 DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
863 const char *fname, const char *mask,
865 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
866 struct files_struct *fsp,
869 struct dirent *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
871 SMB_STRUCT_STAT *sbuf);
872 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
873 DIR *dirp, long offset);
874 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
876 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
878 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
880 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path);
881 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
883 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
885 int smb_vfs_call_open(struct vfs_handle_struct *handle,
886 struct smb_filename *smb_fname, struct files_struct *fsp,
887 int flags, mode_t mode);
888 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
889 struct smb_request *req,
890 uint16_t root_dir_fid,
891 struct smb_filename *smb_fname,
892 uint32_t access_mask,
893 uint32_t share_access,
894 uint32_t create_disposition,
895 uint32_t create_options,
896 uint32_t file_attributes,
897 uint32_t oplock_request,
898 uint64_t allocation_size,
899 uint32_t private_flags,
900 struct security_descriptor *sd,
901 struct ea_list *ea_list,
902 files_struct **result,
904 int smb_vfs_call_close(struct vfs_handle_struct *handle,
905 struct files_struct *fsp);
906 ssize_t smb_vfs_call_read(struct vfs_handle_struct *handle,
907 struct files_struct *fsp, void *data, size_t n);
908 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
909 struct files_struct *fsp, void *data, size_t n,
911 struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle,
913 struct tevent_context *ev,
914 struct files_struct *fsp,
916 size_t n, off_t offset);
917 ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, int *perrno);
919 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
920 struct files_struct *fsp, const void *data,
922 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
923 struct files_struct *fsp, const void *data,
924 size_t n, off_t offset);
925 struct tevent_req *smb_vfs_call_pwrite_send(struct vfs_handle_struct *handle,
927 struct tevent_context *ev,
928 struct files_struct *fsp,
930 size_t n, off_t offset);
931 ssize_t SMB_VFS_PWRITE_RECV(struct tevent_req *req, int *perrno);
933 off_t smb_vfs_call_lseek(struct vfs_handle_struct *handle,
934 struct files_struct *fsp, off_t offset,
936 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
937 files_struct *fromfsp, const DATA_BLOB *header,
938 off_t offset, size_t count);
939 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
940 files_struct *tofsp, off_t offset,
942 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
943 const struct smb_filename *smb_fname_src,
944 const struct smb_filename *smb_fname_dst);
945 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
946 struct files_struct *fsp);
948 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
950 struct tevent_context *ev,
951 struct files_struct *fsp);
952 int SMB_VFS_FSYNC_RECV(struct tevent_req *req, int *perrno);
954 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
955 struct smb_filename *smb_fname);
956 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
957 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
958 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
959 struct smb_filename *smb_filename);
960 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
961 struct files_struct *fsp,
962 const SMB_STRUCT_STAT *sbuf);
963 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
964 const struct smb_filename *smb_fname);
965 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
967 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
968 struct files_struct *fsp, mode_t mode);
969 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
970 uid_t uid, gid_t gid);
971 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
972 struct files_struct *fsp, uid_t uid, gid_t gid);
973 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
974 uid_t uid, gid_t gid);
975 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path);
976 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle);
977 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
978 const struct smb_filename *smb_fname,
979 struct smb_file_time *ft);
980 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
981 struct files_struct *fsp, off_t offset);
982 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
983 struct files_struct *fsp,
984 enum vfs_fallocate_mode mode,
987 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
988 struct files_struct *fsp, int op, off_t offset,
989 off_t count, int type);
990 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
991 struct files_struct *fsp, uint32 share_mode,
992 uint32_t access_mask);
993 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
994 struct files_struct *fsp, int leasetype);
995 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
996 struct files_struct *fsp, off_t *poffset,
997 off_t *pcount, int *ptype, pid_t *ppid);
998 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
999 const char *newpath);
1000 int smb_vfs_call_readlink(struct vfs_handle_struct *handle,
1001 const char *path, char *buf, size_t bufsiz);
1002 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1003 const char *newpath);
1004 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1005 mode_t mode, SMB_DEV_T dev);
1006 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle, const char *path);
1007 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1008 struct sys_notify_context *ctx,
1011 uint32_t *subdir_filter,
1012 void (*callback)(struct sys_notify_context *ctx,
1014 struct notify_event *ev),
1015 void *private_data, void *handle_p);
1016 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1017 unsigned int flags);
1018 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1019 const SMB_STRUCT_STAT *sbuf);
1020 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1021 struct files_struct *fsp,
1023 TALLOC_CTX *mem_ctx,
1024 unsigned int *num_streams,
1025 struct stream_struct **streams);
1026 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1027 const char *path, const char *name,
1028 TALLOC_CTX *mem_ctx, char **found_name);
1029 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1030 const char *filename);
1031 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
1032 struct byte_range_lock *br_lck,
1033 struct lock_struct *plock,
1035 struct blocking_lock_record *blr);
1036 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
1037 struct messaging_context *msg_ctx,
1038 struct byte_range_lock *br_lck,
1039 const struct lock_struct *plock);
1040 bool smb_vfs_call_brl_cancel_windows(struct vfs_handle_struct *handle,
1041 struct byte_range_lock *br_lck,
1042 struct lock_struct *plock,
1043 struct blocking_lock_record *blr);
1044 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1045 struct files_struct *fsp,
1046 struct lock_struct *plock);
1047 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1048 struct files_struct *fsp,
1049 struct lock_struct *plock);
1050 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1052 enum vfs_translate_direction direction,
1053 TALLOC_CTX *mem_ctx,
1054 char **mapped_name);
1055 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
1056 struct files_struct *fsp,
1060 const uint8_t *_in_data,
1062 uint8_t **_out_data,
1063 uint32_t max_out_len,
1065 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1066 struct files_struct *fsp,
1067 uint32 security_info,
1068 struct security_descriptor **ppdesc);
1069 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1071 uint32 security_info,
1072 struct security_descriptor **ppdesc);
1073 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1074 struct files_struct *fsp,
1075 uint32 security_info_sent,
1076 const struct security_descriptor *psd);
1077 NTSTATUS smb_vfs_call_audit_file(struct vfs_handle_struct *handle,
1078 struct smb_filename *file,
1079 struct security_acl *sacl,
1080 uint32_t access_requested,
1081 uint32_t access_denied);
1082 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1084 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1085 struct files_struct *fsp, mode_t mode);
1086 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1088 SMB_ACL_TYPE_T type);
1089 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1090 struct files_struct *fsp);
1091 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1092 const char *name, SMB_ACL_TYPE_T acltype,
1094 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1095 struct files_struct *fsp, SMB_ACL_T theacl);
1096 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1098 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1099 const char *path, const char *name, void *value,
1101 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1102 struct files_struct *fsp, const char *name,
1103 void *value, size_t size);
1104 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1105 const char *path, char *list, size_t size);
1106 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1107 const char *path, char *list, size_t size);
1108 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1109 struct files_struct *fsp, char *list,
1111 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1112 const char *path, const char *name);
1113 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1114 struct files_struct *fsp, const char *name);
1115 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1116 const char *name, const void *value, size_t size,
1118 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1119 const char *name, const void *value, size_t size,
1121 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1122 struct files_struct *fsp, const char *name,
1123 const void *value, size_t size, int flags);
1124 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1125 struct files_struct *fsp);
1126 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1127 const struct smb_filename *fname,
1128 SMB_STRUCT_STAT *sbuf);
1129 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1130 const struct smb_filename *fname);
1131 NTSTATUS smb_vfs_call_durable_cookie(struct vfs_handle_struct *handle,
1132 struct files_struct *fsp,
1133 TALLOC_CTX *mem_ctx,
1135 NTSTATUS smb_vfs_call_durable_disconnect(struct vfs_handle_struct *handle,
1136 struct files_struct *fsp,
1137 const DATA_BLOB old_cookie,
1138 TALLOC_CTX *mem_ctx,
1139 DATA_BLOB *new_cookie);
1140 NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
1141 struct smb_request *smb1req,
1142 struct smbXsrv_open *op,
1143 const DATA_BLOB old_cookie,
1144 TALLOC_CTX *mem_ctx,
1145 struct files_struct **fsp,
1146 DATA_BLOB *new_cookie);
1148 NTSTATUS smb_register_vfs(int version, const char *name,
1149 const struct vfs_fn_pointers *fns);
1150 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
1151 files_struct *fsp, size_t ext_size,
1152 void (*destroy_fn)(void *p_data));
1153 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1154 void vfs_remove_all_fsp_extensions(struct files_struct *fsp);
1155 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1156 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);