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 /* 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() */
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
259 /* Bump to version 40, Samba 4.10 will ship with that */
260 /* Version 40 - Introduce smb_vfs_ev_glue infrastructure. */
262 #define SMB_VFS_INTERFACE_VERSION 40
265 All intercepted VFS operations must be declared as static functions inside module source
266 in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
267 example VFS modules for more details.
270 /* VFS operations structure */
272 struct vfs_handle_struct;
273 struct connection_struct;
275 struct security_descriptor;
276 struct vfs_statvfs_struct;
279 struct smb_file_time;
280 struct blocking_lock_record;
282 struct dfs_GetDFSReferral;
283 struct tevent_context;
284 struct pthreadpool_tevent;
285 struct smb_vfs_ev_glue;
287 typedef union unid_t {
295 uint64_t position_information;
297 uint32_t private_options; /* NT Create options, but we only look at
298 * NTCREATEX_OPTIONS_PRIVATE_DENY_DOS and
299 * NTCREATEX_OPTIONS_PRIVATE_DENY_FCB and
300 * NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE
301 * for print files *only*, where
302 * DELETE_ON_CLOSE is not stored in the share
305 unsigned long gen_id;
310 struct smbd_server_connection *sconn;
311 struct tevent_timer *timeout;
312 struct smb2_lease lease;
315 typedef struct files_struct {
316 struct files_struct *next, *prev;
318 struct smbXsrv_open *op;
319 struct connection_struct *conn;
320 struct fd_handle *fh;
321 unsigned int num_smb_operations;
322 struct file_id file_id;
323 uint64_t initial_allocation_size; /* Faked up initial allocation on disk. */
325 uint64_t vuid; /* SMB2 compat */
326 struct write_cache *wcp;
327 struct timeval open_time;
328 uint32_t access_mask; /* NTCreateX access bits (FILE_READ_DATA etc.) */
329 uint32_t share_access; /* NTCreateX share constants (FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE). */
331 bool kernel_share_modes_taken;
333 bool update_write_time_triggered;
334 struct tevent_timer *update_write_time_event;
335 bool update_write_time_on_close;
336 struct timespec close_write_time;
337 bool write_time_forced;
340 struct fsp_lease *lease;
341 int sent_oplock_break;
342 struct tevent_timer *oplock_timeout;
343 struct lock_struct last_lock_failure;
344 int current_lock_count; /* Count the number of outstanding locks and pending locks. */
351 bool aio_write_behind;
352 bool initial_delete_on_close; /* Only set at NTCreateX if file was created. */
353 bool delete_on_close;
354 uint64_t posix_flags;
356 bool backup_intent; /* Handle was successfully opened with backup intent
357 and opener has privilege to do so. */
358 bool use_ofd_locks; /* Are we using open file description locks ? */
359 struct smb_filename *fsp_name;
360 uint32_t name_hash; /* Jenkins hash of full pathname. */
361 uint64_t mid; /* Mid of the operation that created us. */
363 struct vfs_fsp_data *vfs_extension;
364 struct fake_file_handle *fake_file_handle;
366 struct notify_change_buf *notify;
368 struct files_struct *base_fsp; /* placeholder for delete on close */
371 * Read-only cached brlock record, thrown away when the
372 * brlock.tdb seqnum changes. This avoids fetching data from
373 * the brlock.tdb on every read/write call.
376 struct byte_range_lock *brlock_rec;
378 struct dptr_struct *dptr;
380 /* if not NULL, means this is a print file */
381 struct print_file_data *print_file;
383 unsigned num_aio_requests;
384 struct tevent_req **aio_requests;
387 * If a close request comes in while we still have aio_requests
388 * around, we need to hold back the close. When all aio_requests are
389 * done, the aio completion routines need tevent_wait_done() on
390 * this. A bit ugly, but before we have close_file() fully async
391 * possibly the simplest approach. Thanks, Jeremy for the idea.
393 struct tevent_req *deferred_close;
396 #define FSP_POSIX_FLAGS_OPEN 0x01
397 #define FSP_POSIX_FLAGS_RENAME 0x02
398 #define FSP_POSIX_FLAGS_PATHNAMES 0x04
400 #define FSP_POSIX_FLAGS_ALL \
401 (FSP_POSIX_FLAGS_OPEN | \
402 FSP_POSIX_FLAGS_PATHNAMES | \
403 FSP_POSIX_FLAGS_RENAME)
405 struct vuid_cache_entry {
406 struct auth_session_info *session_info;
407 struct smb_vfs_ev_glue *user_vfs_evg;
408 uint64_t vuid; /* SMB2 compat */
410 uint32_t share_access;
414 unsigned int next_entry;
415 struct vuid_cache_entry array[VUID_CACHE_SIZE];
421 } name_compare_entry;
423 struct share_params {
427 typedef struct connection_struct {
428 struct connection_struct *next, *prev;
429 struct smbd_server_connection *sconn; /* can be NULL */
430 struct smbXsrv_tcon *tcon; /* can be NULL */
431 uint32_t cnum; /* an index passed over the wire */
432 struct share_params *params;
434 struct vuid_cache *vuid_cache;
437 bool read_only; /* Attributes for the current user of the share. */
438 uint32_t share_access;
439 /* Does this filesystem honor
440 sub second timestamps on files
441 and directories when setting time ? */
442 enum timestamp_set_resolution ts_res;
445 struct smb_filename *cwd_fname; /* Working directory. */
448 struct vfs_handle_struct *vfs_handles; /* for the new plugins */
451 * This represents the user information on this connection. Depending
452 * on the vuid using this tid, this might change per SMB request.
454 struct auth_session_info *session_info;
455 struct tevent_context *user_ev_ctx;
456 struct smb_vfs_ev_glue *user_vfs_evg;
459 * If the "force group" parameter is set, this is the primary gid that
460 * may be used in the users token, depending on the vuid using this tid.
462 gid_t force_group_gid;
464 uint64_t vuid; /* vuid of user who *opened* this connection, or UID_FIELD_INVALID */
467 time_t lastused_count;
469 unsigned int num_smb_operations; /* Count of smb operations on this tree. */
473 /* Semantics requested by the client or forced by the server config. */
476 bool short_case_preserve;
478 /* Semantics provided by the underlying filesystem. */
480 /* Device number of the directory of the share mount.
481 Used to ensure unique FileIndex returns. */
482 SMB_DEV_T base_share_dev;
484 name_compare_entry *hide_list; /* Per-share list of files to return as hidden. */
485 name_compare_entry *veto_list; /* Per-share list of files to veto (never show). */
486 name_compare_entry *veto_oplock_list; /* Per-share list of files to refuse oplocks on. */
487 name_compare_entry *aio_write_behind_list; /* Per-share list of files to use aio write behind on. */
488 struct trans_state *pending_trans;
490 struct rpc_pipe_client *spoolss_pipe;
494 struct smbd_smb2_request;
495 struct privilege_paths;
501 uint64_t mid; /* For compatibility with SMB2. */
503 uint64_t vuid; /* For compatibility with SMB2. */
509 const uint8_t *inbuf;
512 * Async handling in the main smb processing loop is directed by
513 * outbuf: reply_xxx routines indicate sync behaviour by putting their
514 * reply into "outbuf". If they leave it as NULL, they take care of it
515 * themselves, possibly later.
517 * If async handling is wanted, the reply_xxx routine must make sure
518 * that it talloc_move()s the smb_req somewhere else.
524 /* the tevent_context (wrapper) the request operates on */
525 struct tevent_context *ev_ctx;
526 connection_struct *conn;
527 struct smbd_server_connection *sconn;
528 struct smbXsrv_connection *xconn;
529 struct smb_perfcount_data pcd;
532 * Chained request handling
534 struct files_struct *chain_fsp;
537 * state information for async smb handling
542 * Back pointer to smb2 request.
544 struct smbd_smb2_request *smb2req;
547 * Pathnames used if request done
550 struct privilege_paths *priv_paths;
553 * Request list for chained requests, we're part of it.
555 struct smb_request **chain;
557 struct timeval request_time;
559 bool posix_pathnames;
563 * Info about an alternate data stream
566 struct stream_struct {
573 struct smb_file_time {
574 struct timespec mtime;
575 struct timespec atime;
576 struct timespec ctime;
577 struct timespec create_time;
583 struct smb_filename {
586 char *original_lcomp;
592 * smb_filename flags. Define in terms of the FSP_POSIX_FLAGS_XX
593 * to keep the numeric values consistent.
596 #define SMB_FILENAME_POSIX_PATH FSP_POSIX_FLAGS_PATHNAMES
598 #define VFS_FIND(__fn__) while (handle->fns->__fn__##_fn==NULL) { \
599 handle = handle->next; \
602 enum vfs_translate_direction {
603 vfs_translate_to_unix = 0,
604 vfs_translate_to_windows
607 enum vfs_fallocate_flags {
608 VFS_FALLOCATE_FL_KEEP_SIZE = 0x0001,
609 VFS_FALLOCATE_FL_PUNCH_HOLE = 0x0002,
612 struct vfs_aio_state {
618 Available VFS operations. These values must be in sync with vfs_ops struct
619 (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
620 In particular, if new operations are added to vfs_ops, appropriate constants
621 should be added to vfs_op_type so that order of them kept same as in vfs_ops.
623 struct shadow_copy_data;
625 struct vfs_fn_pointers {
626 /* Disk operations */
628 int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
629 void (*disconnect_fn)(struct vfs_handle_struct *handle);
630 uint64_t (*disk_free_fn)(struct vfs_handle_struct *handle,
631 const struct smb_filename *smb_fname,
635 int (*get_quota_fn)(struct vfs_handle_struct *handle,
636 const struct smb_filename *smb_fname,
637 enum SMB_QUOTA_TYPE qtype,
640 int (*set_quota_fn)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
641 int (*get_shadow_copy_data_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, struct shadow_copy_data *shadow_copy_data, bool labels);
642 int (*statvfs_fn)(struct vfs_handle_struct *handle,
643 const struct smb_filename *smb_fname,
644 struct vfs_statvfs_struct *statbuf);
645 uint32_t (*fs_capabilities_fn)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
648 * Note: that "struct dfs_GetDFSReferral *r"
649 * needs to be a valid TALLOC_CTX
651 NTSTATUS (*get_dfs_referrals_fn)(struct vfs_handle_struct *handle,
652 struct dfs_GetDFSReferral *r);
654 /* Directory operations */
656 DIR *(*opendir_fn)(struct vfs_handle_struct *handle,
657 const struct smb_filename *smb_fname,
659 uint32_t attributes);
660 DIR *(*fdopendir_fn)(struct vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32_t attributes);
661 struct dirent *(*readdir_fn)(struct vfs_handle_struct *handle,
663 SMB_STRUCT_STAT *sbuf);
664 void (*seekdir_fn)(struct vfs_handle_struct *handle, DIR *dirp, long offset);
665 long (*telldir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
666 void (*rewind_dir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
667 int (*mkdir_fn)(struct vfs_handle_struct *handle,
668 const struct smb_filename *smb_fname,
670 int (*rmdir_fn)(struct vfs_handle_struct *handle,
671 const struct smb_filename *smb_fname);
672 int (*closedir_fn)(struct vfs_handle_struct *handle, DIR *dir);
674 /* File operations */
676 int (*open_fn)(struct vfs_handle_struct *handle,
677 struct smb_filename *smb_fname, files_struct *fsp,
678 int flags, mode_t mode);
679 NTSTATUS (*create_file_fn)(struct vfs_handle_struct *handle,
680 struct smb_request *req,
681 uint16_t root_dir_fid,
682 struct smb_filename *smb_fname,
683 uint32_t access_mask,
684 uint32_t share_access,
685 uint32_t create_disposition,
686 uint32_t create_options,
687 uint32_t file_attributes,
688 uint32_t oplock_request,
689 struct smb2_lease *lease,
690 uint64_t allocation_size,
691 uint32_t private_flags,
692 struct security_descriptor *sd,
693 struct ea_list *ea_list,
694 files_struct **result,
696 const struct smb2_create_blobs *in_context_blobs,
697 struct smb2_create_blobs *out_context_blobs);
698 int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
699 ssize_t (*pread_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, off_t offset);
700 struct tevent_req *(*pread_send_fn)(struct vfs_handle_struct *handle,
702 struct tevent_context *ev,
703 struct files_struct *fsp,
705 size_t n, off_t offset);
706 ssize_t (*pread_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
707 ssize_t (*pwrite_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, off_t offset);
708 struct tevent_req *(*pwrite_send_fn)(struct vfs_handle_struct *handle,
710 struct tevent_context *ev,
711 struct files_struct *fsp,
713 size_t n, off_t offset);
714 ssize_t (*pwrite_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
715 off_t (*lseek_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset, int whence);
716 ssize_t (*sendfile_fn)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, off_t offset, size_t count);
717 ssize_t (*recvfile_fn)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, off_t offset, size_t count);
718 int (*rename_fn)(struct vfs_handle_struct *handle,
719 const struct smb_filename *smb_fname_src,
720 const struct smb_filename *smb_fname_dst);
721 struct tevent_req *(*fsync_send_fn)(struct vfs_handle_struct *handle,
723 struct tevent_context *ev,
724 struct files_struct *fsp);
725 int (*fsync_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
726 int (*stat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
727 int (*fstat_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
728 int (*lstat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
729 uint64_t (*get_alloc_size_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
730 int (*unlink_fn)(struct vfs_handle_struct *handle,
731 const struct smb_filename *smb_fname);
732 int (*chmod_fn)(struct vfs_handle_struct *handle,
733 const struct smb_filename *smb_fname,
735 int (*fchmod_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
736 int (*chown_fn)(struct vfs_handle_struct *handle,
737 const struct smb_filename *smb_fname,
740 int (*fchown_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
741 int (*lchown_fn)(struct vfs_handle_struct *handle,
742 const struct smb_filename *smb_fname,
745 int (*chdir_fn)(struct vfs_handle_struct *handle,
746 const struct smb_filename *smb_fname);
747 struct smb_filename *(*getwd_fn)(struct vfs_handle_struct *handle,
748 TALLOC_CTX *mem_ctx);
749 int (*ntimes_fn)(struct vfs_handle_struct *handle,
750 const struct smb_filename *smb_fname,
751 struct smb_file_time *ft);
752 int (*ftruncate_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset);
753 int (*fallocate_fn)(struct vfs_handle_struct *handle,
754 struct files_struct *fsp,
758 bool (*lock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, off_t offset, off_t count, int type);
759 int (*kernel_flock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
760 uint32_t share_mode, uint32_t access_mask);
761 int (*linux_setlease_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
762 bool (*getlock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid);
763 int (*symlink_fn)(struct vfs_handle_struct *handle,
764 const char *link_contents,
765 const struct smb_filename *new_smb_fname);
766 int (*readlink_fn)(struct vfs_handle_struct *handle,
767 const struct smb_filename *smb_fname,
770 int (*link_fn)(struct vfs_handle_struct *handle,
771 const struct smb_filename *old_smb_fname,
772 const struct smb_filename *new_smb_fname);
773 int (*mknod_fn)(struct vfs_handle_struct *handle,
774 const struct smb_filename *smb_fname,
777 struct smb_filename *(*realpath_fn)(struct vfs_handle_struct *handle,
779 const struct smb_filename *smb_fname);
780 int (*chflags_fn)(struct vfs_handle_struct *handle,
781 const struct smb_filename *smb_fname,
783 struct file_id (*file_id_create_fn)(struct vfs_handle_struct *handle,
784 const SMB_STRUCT_STAT *sbuf);
785 struct tevent_req *(*offload_read_send_fn)(TALLOC_CTX *mem_ctx,
786 struct tevent_context *ev,
787 struct vfs_handle_struct *handle,
788 struct files_struct *fsp,
793 NTSTATUS (*offload_read_recv_fn)(struct tevent_req *req,
794 struct vfs_handle_struct *handle,
796 DATA_BLOB *token_blob);
797 struct tevent_req *(*offload_write_send_fn)(struct vfs_handle_struct *handle,
799 struct tevent_context *ev,
802 off_t transfer_offset,
803 struct files_struct *dest_fsp,
806 NTSTATUS (*offload_write_recv_fn)(struct vfs_handle_struct *handle,
807 struct tevent_req *req,
809 NTSTATUS (*get_compression_fn)(struct vfs_handle_struct *handle,
811 struct files_struct *fsp,
812 struct smb_filename *smb_fname,
813 uint16_t *_compression_fmt);
814 NTSTATUS (*set_compression_fn)(struct vfs_handle_struct *handle,
816 struct files_struct *fsp,
817 uint16_t compression_fmt);
818 NTSTATUS (*snap_check_path_fn)(struct vfs_handle_struct *handle,
820 const char *service_path,
822 NTSTATUS (*snap_create_fn)(struct vfs_handle_struct *handle,
824 const char *base_volume,
829 NTSTATUS (*snap_delete_fn)(struct vfs_handle_struct *handle,
834 NTSTATUS (*streaminfo_fn)(struct vfs_handle_struct *handle,
835 struct files_struct *fsp,
836 const struct smb_filename *smb_fname,
838 unsigned int *num_streams,
839 struct stream_struct **streams);
841 int (*get_real_filename_fn)(struct vfs_handle_struct *handle,
847 const char *(*connectpath_fn)(struct vfs_handle_struct *handle,
848 const struct smb_filename *smb_fname);
850 NTSTATUS (*brl_lock_windows_fn)(struct vfs_handle_struct *handle,
851 struct byte_range_lock *br_lck,
852 struct lock_struct *plock,
855 bool (*brl_unlock_windows_fn)(struct vfs_handle_struct *handle,
856 struct messaging_context *msg_ctx,
857 struct byte_range_lock *br_lck,
858 const struct lock_struct *plock);
860 bool (*brl_cancel_windows_fn)(struct vfs_handle_struct *handle,
861 struct byte_range_lock *br_lck,
862 struct lock_struct *plock);
864 bool (*strict_lock_check_fn)(struct vfs_handle_struct *handle,
865 struct files_struct *fsp,
866 struct lock_struct *plock);
868 NTSTATUS (*translate_name_fn)(struct vfs_handle_struct *handle,
870 enum vfs_translate_direction direction,
874 NTSTATUS (*fsctl_fn)(struct vfs_handle_struct *handle,
875 struct files_struct *fsp,
879 const uint8_t *_in_data,
882 uint32_t max_out_len,
885 NTSTATUS (*get_dos_attributes_fn)(struct vfs_handle_struct *handle,
886 struct smb_filename *smb_fname,
889 NTSTATUS (*fget_dos_attributes_fn)(struct vfs_handle_struct *handle,
890 struct files_struct *fsp,
893 NTSTATUS (*set_dos_attributes_fn)(struct vfs_handle_struct *handle,
894 const struct smb_filename *smb_fname,
897 NTSTATUS (*fset_dos_attributes_fn)(struct vfs_handle_struct *hande,
898 struct files_struct *fsp,
901 /* NT ACL operations. */
903 NTSTATUS (*fget_nt_acl_fn)(struct vfs_handle_struct *handle,
904 struct files_struct *fsp,
905 uint32_t security_info,
907 struct security_descriptor **ppdesc);
908 NTSTATUS (*get_nt_acl_fn)(struct vfs_handle_struct *handle,
909 const struct smb_filename *smb_fname,
910 uint32_t security_info,
912 struct security_descriptor **ppdesc);
913 NTSTATUS (*fset_nt_acl_fn)(struct vfs_handle_struct *handle,
914 struct files_struct *fsp,
915 uint32_t security_info_sent,
916 const struct security_descriptor *psd);
918 NTSTATUS (*audit_file_fn)(struct vfs_handle_struct *handle,
919 struct smb_filename *file,
920 struct security_acl *sacl,
921 uint32_t access_requested,
922 uint32_t access_denied);
924 /* POSIX ACL operations. */
926 SMB_ACL_T (*sys_acl_get_file_fn)(struct vfs_handle_struct *handle,
927 const struct smb_filename *smb_fname,
929 TALLOC_CTX *mem_ctx);
930 SMB_ACL_T (*sys_acl_get_fd_fn)(struct vfs_handle_struct *handle,
931 struct files_struct *fsp,
932 TALLOC_CTX *mem_ctx);
933 int (*sys_acl_blob_get_file_fn)(struct vfs_handle_struct *handle,
934 const struct smb_filename *smb_fname,
936 char **blob_description,
938 int (*sys_acl_blob_get_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
939 TALLOC_CTX *mem_ctx, char **blob_description,
941 int (*sys_acl_set_file_fn)(struct vfs_handle_struct *handle,
942 const struct smb_filename *smb_fname,
943 SMB_ACL_TYPE_T acltype,
945 int (*sys_acl_set_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
946 int (*sys_acl_delete_def_file_fn)(struct vfs_handle_struct *handle,
947 const struct smb_filename *smb_fname);
950 ssize_t (*getxattr_fn)(struct vfs_handle_struct *handle,
951 const struct smb_filename *smb_fname,
955 ssize_t (*fgetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
956 ssize_t (*listxattr_fn)(struct vfs_handle_struct *handle,
957 const struct smb_filename *smb_fname,
960 ssize_t (*flistxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
961 int (*removexattr_fn)(struct vfs_handle_struct *handle,
962 const struct smb_filename *smb_fname,
964 int (*fremovexattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
965 int (*setxattr_fn)(struct vfs_handle_struct *handle,
966 const struct smb_filename *smb_fname,
971 int (*fsetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
974 bool (*aio_force_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
976 /* durable handle operations */
977 NTSTATUS (*durable_cookie_fn)(struct vfs_handle_struct *handle,
978 struct files_struct *fsp,
981 NTSTATUS (*durable_disconnect_fn)(struct vfs_handle_struct *handle,
982 struct files_struct *fsp,
983 const DATA_BLOB old_cookie,
985 DATA_BLOB *new_cookie);
986 NTSTATUS (*durable_reconnect_fn)(struct vfs_handle_struct *handle,
987 struct smb_request *smb1req,
988 struct smbXsrv_open *op,
989 const DATA_BLOB old_cookie,
991 struct files_struct **fsp,
992 DATA_BLOB *new_cookie);
994 NTSTATUS (*readdir_attr_fn)(struct vfs_handle_struct *handle,
995 const struct smb_filename *fname,
997 struct readdir_attr_data **attr_data);
1001 VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
1002 which describes all operations this module is willing to intercept.
1003 VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
1004 using this information.
1007 typedef struct vfs_handle_struct {
1008 struct vfs_handle_struct *next, *prev;
1010 struct connection_struct *conn;
1011 const struct vfs_fn_pointers *fns;
1013 void (*free_data)(void **data);
1014 } vfs_handle_struct;
1017 typedef struct vfs_statvfs_struct {
1018 /* For undefined recommended transfer size return -1 in that field */
1019 uint32_t OptimalTransferSize; /* bsize on some os, iosize on other os */
1023 The next three fields are in terms of the block size.
1024 (above). If block size is unknown, 4096 would be a
1025 reasonable block size for a server to report.
1026 Note that returning the blocks/blocksavail removes need
1027 to make a second call (to QFSInfo level 0x103 to get this info.
1028 UserBlockAvail is typically less than or equal to BlocksAvail,
1029 if no distinction is made return the same value in each.
1032 uint64_t TotalBlocks;
1033 uint64_t BlocksAvail; /* bfree */
1034 uint64_t UserBlocksAvail; /* bavail */
1036 /* For undefined Node fields or FSID return -1 */
1037 uint64_t TotalFileNodes;
1038 uint64_t FreeFileNodes;
1039 uint64_t FsIdentifier; /* fsid */
1040 /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
1041 /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call */
1044 } vfs_statvfs_struct;
1046 /* Add a new FSP extension of the given type. Returns a pointer to the
1049 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn) \
1050 (type *)vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
1052 /* Return a pointer to the existing FSP extension data. */
1053 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
1054 vfs_fetch_fsp_extension(handle, (fsp))
1056 /* Return the talloc context associated with an FSP extension. */
1057 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
1058 vfs_memctx_fsp_extension(handle, (fsp))
1060 /* Remove and destroy an FSP extension. */
1061 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
1062 vfs_remove_fsp_extension((handle), (fsp))
1064 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
1065 if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
1066 DEBUG(0,("%s() failed to get vfs_handle->data!\n",__FUNCTION__)); \
1071 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
1073 DEBUG(0,("%s() failed to set handle->data!\n",__FUNCTION__)); \
1076 if ((handle)->free_data) { \
1077 (handle)->free_data(&(handle)->data); \
1079 (handle)->data = (void *)datap; \
1080 (handle)->free_data = free_fn; \
1084 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
1085 if ((handle) && (handle)->free_data) { \
1086 (handle)->free_data(&(handle)->data); \
1090 /* Check whether module-specific data handle was already allocated or not */
1091 #define SMB_VFS_HANDLE_TEST_DATA(handle) ( !(handle) || !(handle)->data ? False : True )
1093 #define SMB_VFS_OP(x) ((void *) x)
1095 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
1097 #include "vfs_macros.h"
1099 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1100 const char *service, const char *user);
1101 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
1102 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1103 const struct smb_filename *smb_filename,
1107 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1108 const struct smb_filename *smb_filename,
1109 enum SMB_QUOTA_TYPE qtype,
1111 SMB_DISK_QUOTA *qt);
1112 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1113 enum SMB_QUOTA_TYPE qtype, unid_t id,
1114 SMB_DISK_QUOTA *qt);
1115 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1116 struct files_struct *fsp,
1117 struct shadow_copy_data *shadow_copy_data,
1119 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle,
1120 const struct smb_filename *smb_fname,
1121 struct vfs_statvfs_struct *statbuf);
1122 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1123 enum timestamp_set_resolution *p_ts_res);
1125 * Note: that "struct dfs_GetDFSReferral *r" needs to be a valid TALLOC_CTX
1127 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
1128 struct dfs_GetDFSReferral *r);
1129 DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1130 const struct smb_filename *smb_fname,
1132 uint32_t attributes);
1133 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1134 struct files_struct *fsp,
1136 uint32_t attributes);
1137 struct dirent *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1139 SMB_STRUCT_STAT *sbuf);
1140 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1141 DIR *dirp, long offset);
1142 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1144 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1146 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle,
1147 const struct smb_filename *smb_fname,
1149 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle,
1150 const struct smb_filename *smb_fname);
1151 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1153 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1154 struct smb_filename *smb_fname, struct files_struct *fsp,
1155 int flags, mode_t mode);
1156 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1157 struct smb_request *req,
1158 uint16_t root_dir_fid,
1159 struct smb_filename *smb_fname,
1160 uint32_t access_mask,
1161 uint32_t share_access,
1162 uint32_t create_disposition,
1163 uint32_t create_options,
1164 uint32_t file_attributes,
1165 uint32_t oplock_request,
1166 struct smb2_lease *lease,
1167 uint64_t allocation_size,
1168 uint32_t private_flags,
1169 struct security_descriptor *sd,
1170 struct ea_list *ea_list,
1171 files_struct **result,
1173 const struct smb2_create_blobs *in_context_blobs,
1174 struct smb2_create_blobs *out_context_blobs);
1175 int smb_vfs_call_close(struct vfs_handle_struct *handle,
1176 struct files_struct *fsp);
1177 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1178 struct files_struct *fsp, void *data, size_t n,
1180 struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle,
1181 TALLOC_CTX *mem_ctx,
1182 struct tevent_context *ev,
1183 struct files_struct *fsp,
1185 size_t n, off_t offset);
1186 ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1188 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1189 struct files_struct *fsp, const void *data,
1190 size_t n, off_t offset);
1191 struct tevent_req *smb_vfs_call_pwrite_send(struct vfs_handle_struct *handle,
1192 TALLOC_CTX *mem_ctx,
1193 struct tevent_context *ev,
1194 struct files_struct *fsp,
1196 size_t n, off_t offset);
1197 ssize_t SMB_VFS_PWRITE_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1199 off_t smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1200 struct files_struct *fsp, off_t offset,
1202 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1203 files_struct *fromfsp, const DATA_BLOB *header,
1204 off_t offset, size_t count);
1205 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1206 files_struct *tofsp, off_t offset,
1208 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1209 const struct smb_filename *smb_fname_src,
1210 const struct smb_filename *smb_fname_dst);
1212 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
1213 TALLOC_CTX *mem_ctx,
1214 struct tevent_context *ev,
1215 struct files_struct *fsp);
1216 int SMB_VFS_FSYNC_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1218 int smb_vfs_fsync_sync(files_struct *fsp);
1219 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1220 struct smb_filename *smb_fname);
1221 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1222 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
1223 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1224 struct smb_filename *smb_filename);
1225 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1226 struct files_struct *fsp,
1227 const SMB_STRUCT_STAT *sbuf);
1228 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1229 const struct smb_filename *smb_fname);
1230 int smb_vfs_call_chmod(struct vfs_handle_struct *handle,
1231 const struct smb_filename *smb_fname,
1233 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1234 struct files_struct *fsp, mode_t mode);
1235 int smb_vfs_call_chown(struct vfs_handle_struct *handle,
1236 const struct smb_filename *smb_fname,
1239 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1240 struct files_struct *fsp, uid_t uid, gid_t gid);
1241 int smb_vfs_call_lchown(struct vfs_handle_struct *handle,
1242 const struct smb_filename *smb_fname,
1245 int smb_vfs_call_chdir(struct vfs_handle_struct *handle,
1246 const struct smb_filename *smb_fname);
1247 struct smb_filename *smb_vfs_call_getwd(struct vfs_handle_struct *handle,
1249 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1250 const struct smb_filename *smb_fname,
1251 struct smb_file_time *ft);
1252 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1253 struct files_struct *fsp, off_t offset);
1254 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1255 struct files_struct *fsp,
1259 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
1260 struct files_struct *fsp, int op, off_t offset,
1261 off_t count, int type);
1262 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1263 struct files_struct *fsp, uint32_t share_mode,
1264 uint32_t access_mask);
1265 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1266 struct files_struct *fsp, int leasetype);
1267 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
1268 struct files_struct *fsp, off_t *poffset,
1269 off_t *pcount, int *ptype, pid_t *ppid);
1270 int smb_vfs_call_symlink(struct vfs_handle_struct *handle,
1271 const char *link_contents,
1272 const struct smb_filename *new_smb_fname);
1273 int smb_vfs_call_readlink(struct vfs_handle_struct *handle,
1274 const struct smb_filename *smb_fname,
1277 int smb_vfs_call_link(struct vfs_handle_struct *handle,
1278 const struct smb_filename *old_smb_fname,
1279 const struct smb_filename *new_smb_fname);
1280 int smb_vfs_call_mknod(struct vfs_handle_struct *handle,
1281 const struct smb_filename *smb_fname,
1284 struct smb_filename *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1286 const struct smb_filename *smb_fname);
1287 int smb_vfs_call_chflags(struct vfs_handle_struct *handle,
1288 const struct smb_filename *smb_fname,
1289 unsigned int flags);
1290 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1291 const SMB_STRUCT_STAT *sbuf);
1292 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1293 struct files_struct *fsp,
1294 const struct smb_filename *smb_fname,
1295 TALLOC_CTX *mem_ctx,
1296 unsigned int *num_streams,
1297 struct stream_struct **streams);
1298 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1299 const char *path, const char *name,
1300 TALLOC_CTX *mem_ctx, char **found_name);
1301 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1302 const struct smb_filename *smb_fname);
1303 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
1304 struct byte_range_lock *br_lck,
1305 struct lock_struct *plock,
1306 bool blocking_lock);
1307 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
1308 struct messaging_context *msg_ctx,
1309 struct byte_range_lock *br_lck,
1310 const struct lock_struct *plock);
1311 bool smb_vfs_call_brl_cancel_windows(struct vfs_handle_struct *handle,
1312 struct byte_range_lock *br_lck,
1313 struct lock_struct *plock);
1314 bool smb_vfs_call_strict_lock_check(struct vfs_handle_struct *handle,
1315 struct files_struct *fsp,
1316 struct lock_struct *plock);
1317 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1319 enum vfs_translate_direction direction,
1320 TALLOC_CTX *mem_ctx,
1321 char **mapped_name);
1322 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
1323 struct files_struct *fsp,
1327 const uint8_t *_in_data,
1329 uint8_t **_out_data,
1330 uint32_t max_out_len,
1332 NTSTATUS smb_vfs_call_get_dos_attributes(struct vfs_handle_struct *handle,
1333 struct smb_filename *smb_fname,
1335 NTSTATUS smb_vfs_call_fget_dos_attributes(struct vfs_handle_struct *handle,
1336 struct files_struct *fsp,
1338 NTSTATUS smb_vfs_call_set_dos_attributes(struct vfs_handle_struct *handle,
1339 const struct smb_filename *smb_fname,
1341 NTSTATUS smb_vfs_call_fset_dos_attributes(struct vfs_handle_struct *handle,
1342 struct files_struct *fsp,
1344 struct tevent_req *smb_vfs_call_offload_read_send(
1345 TALLOC_CTX *mem_ctx,
1346 struct tevent_context *ev,
1347 struct vfs_handle_struct *handle,
1348 struct files_struct *fsp,
1353 NTSTATUS smb_vfs_call_offload_read_recv(struct tevent_req *req,
1354 struct vfs_handle_struct *handle,
1355 TALLOC_CTX *mem_ctx,
1356 DATA_BLOB *token_blob);
1357 struct tevent_req *smb_vfs_call_offload_write_send(struct vfs_handle_struct *handle,
1358 TALLOC_CTX *mem_ctx,
1359 struct tevent_context *ev,
1362 off_t transfer_offset,
1363 struct files_struct *dest_fsp,
1366 NTSTATUS smb_vfs_call_offload_write_recv(struct vfs_handle_struct *handle,
1367 struct tevent_req *req,
1369 NTSTATUS smb_vfs_call_get_compression(struct vfs_handle_struct *handle,
1370 TALLOC_CTX *mem_ctx,
1371 struct files_struct *fsp,
1372 struct smb_filename *smb_fname,
1373 uint16_t *_compression_fmt);
1374 NTSTATUS smb_vfs_call_set_compression(struct vfs_handle_struct *handle,
1375 TALLOC_CTX *mem_ctx,
1376 struct files_struct *fsp,
1377 uint16_t compression_fmt);
1378 NTSTATUS smb_vfs_call_snap_check_path(vfs_handle_struct *handle,
1379 TALLOC_CTX *mem_ctx,
1380 const char *service_path,
1381 char **base_volume);
1382 NTSTATUS smb_vfs_call_snap_create(struct vfs_handle_struct *handle,
1383 TALLOC_CTX *mem_ctx,
1384 const char *base_volume,
1389 NTSTATUS smb_vfs_call_snap_delete(struct vfs_handle_struct *handle,
1390 TALLOC_CTX *mem_ctx,
1393 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1394 struct files_struct *fsp,
1395 uint32_t security_info,
1396 TALLOC_CTX *mem_ctx,
1397 struct security_descriptor **ppdesc);
1398 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1399 const struct smb_filename *smb_fname,
1400 uint32_t security_info,
1401 TALLOC_CTX *mem_ctx,
1402 struct security_descriptor **ppdesc);
1403 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1404 struct files_struct *fsp,
1405 uint32_t security_info_sent,
1406 const struct security_descriptor *psd);
1407 NTSTATUS smb_vfs_call_audit_file(struct vfs_handle_struct *handle,
1408 struct smb_filename *file,
1409 struct security_acl *sacl,
1410 uint32_t access_requested,
1411 uint32_t access_denied);
1412 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle,
1413 const struct smb_filename *file,
1415 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1416 const struct smb_filename *smb_fname,
1417 SMB_ACL_TYPE_T type,
1418 TALLOC_CTX *mem_ctx);
1419 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1420 struct files_struct *fsp,
1421 TALLOC_CTX *mem_ctx);
1422 int smb_vfs_call_sys_acl_blob_get_file(struct vfs_handle_struct *handle,
1423 const struct smb_filename *smb_fname,
1424 TALLOC_CTX *mem_ctx,
1425 char **blob_description,
1427 int smb_vfs_call_sys_acl_blob_get_fd(struct vfs_handle_struct *handle,
1428 struct files_struct *fsp,
1429 TALLOC_CTX *mem_ctx,
1430 char **blob_description,
1432 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1433 const struct smb_filename *smb_fname,
1434 SMB_ACL_TYPE_T acltype,
1436 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1437 struct files_struct *fsp, SMB_ACL_T theacl);
1438 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1439 const struct smb_filename *smb_fname);
1440 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1441 const struct smb_filename *smb_fname,
1445 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1446 struct files_struct *fsp, const char *name,
1447 void *value, size_t size);
1448 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1449 const struct smb_filename *smb_fname,
1452 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1453 struct files_struct *fsp, char *list,
1455 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1456 const struct smb_filename *smb_fname,
1458 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1459 struct files_struct *fsp, const char *name);
1460 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle,
1461 const struct smb_filename *smb_fname,
1466 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1467 const char *name, const void *value, size_t size,
1469 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1470 struct files_struct *fsp, const char *name,
1471 const void *value, size_t size, int flags);
1472 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1473 struct files_struct *fsp);
1474 NTSTATUS smb_vfs_call_durable_cookie(struct vfs_handle_struct *handle,
1475 struct files_struct *fsp,
1476 TALLOC_CTX *mem_ctx,
1478 NTSTATUS smb_vfs_call_durable_disconnect(struct vfs_handle_struct *handle,
1479 struct files_struct *fsp,
1480 const DATA_BLOB old_cookie,
1481 TALLOC_CTX *mem_ctx,
1482 DATA_BLOB *new_cookie);
1483 NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
1484 struct smb_request *smb1req,
1485 struct smbXsrv_open *op,
1486 const DATA_BLOB old_cookie,
1487 TALLOC_CTX *mem_ctx,
1488 struct files_struct **fsp,
1489 DATA_BLOB *new_cookie);
1490 NTSTATUS smb_vfs_call_readdir_attr(struct vfs_handle_struct *handle,
1491 const struct smb_filename *fname,
1492 TALLOC_CTX *mem_ctx,
1493 struct readdir_attr_data **attr_data);
1495 NTSTATUS smb_register_vfs(int version, const char *name,
1496 const struct vfs_fn_pointers *fns);
1497 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
1498 files_struct *fsp, size_t ext_size,
1499 void (*destroy_fn)(void *p_data));
1500 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1501 void vfs_remove_all_fsp_extensions(struct files_struct *fsp);
1502 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1503 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1505 void smb_vfs_assert_all_fns(const struct vfs_fn_pointers* fns,
1506 const char *module);
1509 * Notice the "Design of the smb_vfs_ev_glue infrastructure"
1510 * comment in source3/smbd/vfs.c!
1512 * This explains smb_vfs_ev_glue infrastructure in detail.
1514 struct tevent_context *smb_vfs_ev_glue_ev_ctx(const struct smb_vfs_ev_glue *evg);
1515 struct pthreadpool_tevent *smb_vfs_ev_glue_tp_fd_safe(const struct smb_vfs_ev_glue *evg);
1516 struct pthreadpool_tevent *smb_vfs_ev_glue_tp_path_safe(const struct smb_vfs_ev_glue *evg);
1517 struct pthreadpool_tevent *smb_vfs_ev_glue_tp_chdir_safe(const struct smb_vfs_ev_glue *evg);
1518 const struct smb_vfs_ev_glue *smb_vfs_ev_glue_get_root_glue(const struct smb_vfs_ev_glue *evg);
1519 struct smb_vfs_ev_glue *smb_vfs_ev_glue_create(TALLOC_CTX *mem_ctx,
1520 struct tevent_context *user_ev,
1521 struct pthreadpool_tevent *user_tp_fd_safe,
1522 struct pthreadpool_tevent *user_tp_path_safe,
1523 struct pthreadpool_tevent *user_tp_chdir_safe,
1524 struct tevent_context *root_ev,
1525 struct pthreadpool_tevent *root_tp_fd_safe,
1526 struct pthreadpool_tevent *root_tp_path_safe,
1527 struct pthreadpool_tevent *root_tp_chdir_safe);
1528 struct smb_vfs_ev_glue *smb_vfs_ev_glue_create_switch(
1529 TALLOC_CTX *mem_ctx,
1530 const struct smb_vfs_ev_glue *return_evg,
1531 const struct smb_vfs_ev_glue *run_evg);