1 /* SPDX-License-Identifier: LGPL-2.1 */
4 * Copyright (c) International Business Machines Corp., 2002,2008
5 * Author(s): Steve French (sfrench@us.ibm.com)
10 #include <linux/nls.h>
12 #ifdef CONFIG_CIFS_DFS_UPCALL
13 #include "dfs_cache.h"
18 struct smb3_fs_context
;
21 *****************************************************************
23 *****************************************************************
26 extern struct smb_hdr
*cifs_buf_get(void);
27 extern void cifs_buf_release(void *);
28 extern struct smb_hdr
*cifs_small_buf_get(void);
29 extern void cifs_small_buf_release(void *);
30 extern void free_rsp_buf(int, void *);
31 extern int smb_send(struct TCP_Server_Info
*, struct smb_hdr
*,
32 unsigned int /* length */);
33 extern unsigned int _get_xid(void);
34 extern void _free_xid(unsigned int);
37 unsigned int __xid = _get_xid(); \
38 cifs_dbg(FYI, "VFS: in %s as Xid: %u with uid: %d\n", \
40 from_kuid(&init_user_ns, current_fsuid())); \
41 trace_smb3_enter(__xid, __func__); \
45 #define free_xid(curr_xid) \
47 _free_xid(curr_xid); \
48 cifs_dbg(FYI, "VFS: leaving %s (xid = %u) rc = %d\n", \
49 __func__, curr_xid, (int)rc); \
51 trace_smb3_exit_err(curr_xid, __func__, (int)rc); \
53 trace_smb3_exit_done(curr_xid, __func__); \
55 extern int init_cifs_idmap(void);
56 extern void exit_cifs_idmap(void);
57 extern int init_cifs_spnego(void);
58 extern void exit_cifs_spnego(void);
59 extern const char *build_path_from_dentry(struct dentry
*, void *);
60 extern char *build_path_from_dentry_optional_prefix(struct dentry
*direntry
,
61 void *page
, bool prefix
);
62 static inline void *alloc_dentry_path(void)
67 static inline void free_dentry_path(void *page
)
73 extern char *cifs_build_path_to_root(struct smb3_fs_context
*ctx
,
74 struct cifs_sb_info
*cifs_sb
,
75 struct cifs_tcon
*tcon
,
77 extern char *build_wildcard_path_from_dentry(struct dentry
*direntry
);
78 extern char *cifs_compose_mount_options(const char *sb_mountdata
,
79 const char *fullpath
, const struct dfs_info3_param
*ref
,
81 extern void delete_mid(struct mid_q_entry
*mid
);
82 extern void release_mid(struct mid_q_entry
*mid
);
83 extern void cifs_wake_up_task(struct mid_q_entry
*mid
);
84 extern int cifs_handle_standard(struct TCP_Server_Info
*server
,
85 struct mid_q_entry
*mid
);
86 extern int smb3_parse_devname(const char *devname
, struct smb3_fs_context
*ctx
);
87 extern int smb3_parse_opt(const char *options
, const char *key
, char **val
);
88 extern bool cifs_match_ipaddr(struct sockaddr
*srcaddr
, struct sockaddr
*rhs
);
89 extern int cifs_discard_remaining_data(struct TCP_Server_Info
*server
);
90 extern int cifs_call_async(struct TCP_Server_Info
*server
,
91 struct smb_rqst
*rqst
,
92 mid_receive_t
*receive
, mid_callback_t
*callback
,
93 mid_handle_t
*handle
, void *cbdata
, const int flags
,
94 const struct cifs_credits
*exist_credits
);
95 extern struct TCP_Server_Info
*cifs_pick_channel(struct cifs_ses
*ses
);
96 extern int cifs_send_recv(const unsigned int xid
, struct cifs_ses
*ses
,
97 struct TCP_Server_Info
*server
,
98 struct smb_rqst
*rqst
, int *resp_buf_type
,
99 const int flags
, struct kvec
*resp_iov
);
100 extern int compound_send_recv(const unsigned int xid
, struct cifs_ses
*ses
,
101 struct TCP_Server_Info
*server
,
102 const int flags
, const int num_rqst
,
103 struct smb_rqst
*rqst
, int *resp_buf_type
,
104 struct kvec
*resp_iov
);
105 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses
*,
106 struct smb_hdr
* /* input */ ,
107 struct smb_hdr
* /* out */ ,
108 int * /* bytes returned */ , const int);
109 extern int SendReceiveNoRsp(const unsigned int xid
, struct cifs_ses
*ses
,
110 char *in_buf
, int flags
);
111 extern struct mid_q_entry
*cifs_setup_request(struct cifs_ses
*,
112 struct TCP_Server_Info
*,
114 extern struct mid_q_entry
*cifs_setup_async_request(struct TCP_Server_Info
*,
116 extern int cifs_check_receive(struct mid_q_entry
*mid
,
117 struct TCP_Server_Info
*server
, bool log_error
);
118 extern int cifs_wait_mtu_credits(struct TCP_Server_Info
*server
,
119 unsigned int size
, unsigned int *num
,
120 struct cifs_credits
*credits
);
121 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses
*,
122 struct kvec
*, int /* nvec to send */,
123 int * /* type of buf returned */, const int flags
,
124 struct kvec
* /* resp vec */);
125 extern int SendReceiveBlockingLock(const unsigned int xid
,
126 struct cifs_tcon
*ptcon
,
127 struct smb_hdr
*in_buf
,
128 struct smb_hdr
*out_buf
,
129 int *bytes_returned
);
131 cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info
*server
,
134 cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info
*server
,
135 bool mark_smb_session
);
136 extern int cifs_reconnect(struct TCP_Server_Info
*server
,
137 bool mark_smb_session
);
138 extern int checkSMB(char *buf
, unsigned int len
, struct TCP_Server_Info
*srvr
);
139 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info
*);
140 extern bool backup_cred(struct cifs_sb_info
*);
141 extern bool is_size_safe_to_change(struct cifsInodeInfo
*, __u64 eof
);
142 extern void cifs_update_eof(struct cifsInodeInfo
*cifsi
, loff_t offset
,
143 unsigned int bytes_written
);
144 extern struct cifsFileInfo
*find_writable_file(struct cifsInodeInfo
*, int);
145 extern int cifs_get_writable_file(struct cifsInodeInfo
*cifs_inode
,
147 struct cifsFileInfo
**ret_file
);
148 extern int cifs_get_writable_path(struct cifs_tcon
*tcon
, const char *name
,
150 struct cifsFileInfo
**ret_file
);
151 extern struct cifsFileInfo
*find_readable_file(struct cifsInodeInfo
*, bool);
152 extern int cifs_get_readable_path(struct cifs_tcon
*tcon
, const char *name
,
153 struct cifsFileInfo
**ret_file
);
154 extern unsigned int smbCalcSize(void *buf
);
155 extern int decode_negTokenInit(unsigned char *security_blob
, int length
,
156 struct TCP_Server_Info
*server
);
157 extern int cifs_convert_address(struct sockaddr
*dst
, const char *src
, int len
);
158 extern void cifs_set_port(struct sockaddr
*addr
, const unsigned short int port
);
159 extern int map_smb_to_linux_error(char *buf
, bool logErr
);
160 extern int map_and_check_smb_error(struct mid_q_entry
*mid
, bool logErr
);
161 extern void header_assemble(struct smb_hdr
*, char /* command */ ,
162 const struct cifs_tcon
*, int /* length of
163 fixed section (word count) in two byte units */);
164 extern int small_smb_init_no_tc(const int smb_cmd
, const int wct
,
165 struct cifs_ses
*ses
,
167 extern enum securityEnum
select_sectype(struct TCP_Server_Info
*server
,
168 enum securityEnum requested
);
169 extern int CIFS_SessSetup(const unsigned int xid
, struct cifs_ses
*ses
,
170 struct TCP_Server_Info
*server
,
171 const struct nls_table
*nls_cp
);
172 extern struct timespec64
cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601
);
173 extern u64
cifs_UnixTimeToNT(struct timespec64
);
174 extern struct timespec64
cnvrtDosUnixTm(__le16 le_date
, __le16 le_time
,
176 extern void cifs_set_oplock_level(struct cifsInodeInfo
*cinode
, __u32 oplock
);
177 extern int cifs_get_writer(struct cifsInodeInfo
*cinode
);
178 extern void cifs_put_writer(struct cifsInodeInfo
*cinode
);
179 extern void cifs_done_oplock_break(struct cifsInodeInfo
*cinode
);
180 extern int cifs_unlock_range(struct cifsFileInfo
*cfile
,
181 struct file_lock
*flock
, const unsigned int xid
);
182 extern int cifs_push_mandatory_locks(struct cifsFileInfo
*cfile
);
184 extern void cifs_down_write(struct rw_semaphore
*sem
);
185 struct cifsFileInfo
*cifs_new_fileinfo(struct cifs_fid
*fid
, struct file
*file
,
186 struct tcon_link
*tlink
, __u32 oplock
,
187 const char *symlink_target
);
188 extern int cifs_posix_open(const char *full_path
, struct inode
**inode
,
189 struct super_block
*sb
, int mode
,
190 unsigned int f_flags
, __u32
*oplock
, __u16
*netfid
,
192 void cifs_fill_uniqueid(struct super_block
*sb
, struct cifs_fattr
*fattr
);
193 extern void cifs_unix_basic_to_fattr(struct cifs_fattr
*fattr
,
194 FILE_UNIX_BASIC_INFO
*info
,
195 struct cifs_sb_info
*cifs_sb
);
196 extern void cifs_dir_info_to_fattr(struct cifs_fattr
*, FILE_DIRECTORY_INFO
*,
197 struct cifs_sb_info
*);
198 extern int cifs_fattr_to_inode(struct inode
*inode
, struct cifs_fattr
*fattr
);
199 extern struct inode
*cifs_iget(struct super_block
*sb
,
200 struct cifs_fattr
*fattr
);
202 int cifs_get_inode_info(struct inode
**inode
, const char *full_path
,
203 struct cifs_open_info_data
*data
, struct super_block
*sb
, int xid
,
204 const struct cifs_fid
*fid
);
205 extern int smb311_posix_get_inode_info(struct inode
**pinode
, const char *search_path
,
206 struct super_block
*sb
, unsigned int xid
);
207 extern int cifs_get_inode_info_unix(struct inode
**pinode
,
208 const unsigned char *search_path
,
209 struct super_block
*sb
, unsigned int xid
);
210 extern int cifs_set_file_info(struct inode
*inode
, struct iattr
*attrs
,
211 unsigned int xid
, const char *full_path
, __u32 dosattr
);
212 extern int cifs_rename_pending_delete(const char *full_path
,
213 struct dentry
*dentry
,
214 const unsigned int xid
);
215 extern int sid_to_id(struct cifs_sb_info
*cifs_sb
, struct cifs_sid
*psid
,
216 struct cifs_fattr
*fattr
, uint sidtype
);
217 extern int cifs_acl_to_fattr(struct cifs_sb_info
*cifs_sb
,
218 struct cifs_fattr
*fattr
, struct inode
*inode
,
219 bool get_mode_from_special_sid
,
220 const char *path
, const struct cifs_fid
*pfid
);
221 extern int id_mode_to_cifs_acl(struct inode
*inode
, const char *path
, __u64
*pnmode
,
222 kuid_t uid
, kgid_t gid
);
223 extern struct cifs_ntsd
*get_cifs_acl(struct cifs_sb_info
*, struct inode
*,
224 const char *, u32
*, u32
);
225 extern struct cifs_ntsd
*get_cifs_acl_by_fid(struct cifs_sb_info
*,
226 const struct cifs_fid
*, u32
*, u32
);
227 extern struct posix_acl
*cifs_get_acl(struct user_namespace
*mnt_userns
,
228 struct dentry
*dentry
, int type
);
229 extern int cifs_set_acl(struct user_namespace
*mnt_userns
,
230 struct dentry
*dentry
, struct posix_acl
*acl
, int type
);
231 extern int set_cifs_acl(struct cifs_ntsd
*, __u32
, struct inode
*,
233 extern unsigned int setup_authusers_ACE(struct cifs_ace
*pace
);
234 extern unsigned int setup_special_mode_ACE(struct cifs_ace
*pace
, __u64 nmode
);
235 extern unsigned int setup_special_user_owner_ACE(struct cifs_ace
*pace
);
237 extern void dequeue_mid(struct mid_q_entry
*mid
, bool malformed
);
238 extern int cifs_read_from_socket(struct TCP_Server_Info
*server
, char *buf
,
239 unsigned int to_read
);
240 extern ssize_t
cifs_discard_from_socket(struct TCP_Server_Info
*server
,
242 extern int cifs_read_page_from_socket(struct TCP_Server_Info
*server
,
244 unsigned int page_offset
,
245 unsigned int to_read
);
246 extern int cifs_setup_cifs_sb(struct cifs_sb_info
*cifs_sb
);
247 extern int cifs_match_super(struct super_block
*, void *);
248 extern int cifs_mount(struct cifs_sb_info
*cifs_sb
, struct smb3_fs_context
*ctx
);
249 extern void cifs_umount(struct cifs_sb_info
*);
250 extern void cifs_mark_open_files_invalid(struct cifs_tcon
*tcon
);
251 extern void cifs_reopen_persistent_handles(struct cifs_tcon
*tcon
);
253 extern bool cifs_find_lock_conflict(struct cifsFileInfo
*cfile
, __u64 offset
,
254 __u64 length
, __u8 type
, __u16 flags
,
255 struct cifsLockInfo
**conf_lock
,
257 extern void cifs_add_pending_open(struct cifs_fid
*fid
,
258 struct tcon_link
*tlink
,
259 struct cifs_pending_open
*open
);
260 extern void cifs_add_pending_open_locked(struct cifs_fid
*fid
,
261 struct tcon_link
*tlink
,
262 struct cifs_pending_open
*open
);
263 extern void cifs_del_pending_open(struct cifs_pending_open
*open
);
265 extern bool cifs_is_deferred_close(struct cifsFileInfo
*cfile
,
266 struct cifs_deferred_close
**dclose
);
268 extern void cifs_add_deferred_close(struct cifsFileInfo
*cfile
,
269 struct cifs_deferred_close
*dclose
);
271 extern void cifs_del_deferred_close(struct cifsFileInfo
*cfile
);
273 extern void cifs_close_deferred_file(struct cifsInodeInfo
*cifs_inode
);
275 extern void cifs_close_all_deferred_files(struct cifs_tcon
*cifs_tcon
);
277 extern void cifs_close_deferred_file_under_dentry(struct cifs_tcon
*cifs_tcon
,
279 extern struct TCP_Server_Info
*
280 cifs_get_tcp_session(struct smb3_fs_context
*ctx
,
281 struct TCP_Server_Info
*primary_server
);
282 extern void cifs_put_tcp_session(struct TCP_Server_Info
*server
,
284 extern void cifs_put_tcon(struct cifs_tcon
*tcon
);
286 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
287 extern void cifs_dfs_release_automount_timer(void);
288 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
289 #define cifs_dfs_release_automount_timer() do { } while (0)
290 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
292 void cifs_proc_init(void);
293 void cifs_proc_clean(void);
295 extern void cifs_move_llist(struct list_head
*source
, struct list_head
*dest
);
296 extern void cifs_free_llist(struct list_head
*llist
);
297 extern void cifs_del_lock_waiters(struct cifsLockInfo
*lock
);
299 extern int cifs_tree_connect(const unsigned int xid
, struct cifs_tcon
*tcon
,
300 const struct nls_table
*nlsc
);
302 extern int cifs_negotiate_protocol(const unsigned int xid
,
303 struct cifs_ses
*ses
,
304 struct TCP_Server_Info
*server
);
305 extern int cifs_setup_session(const unsigned int xid
, struct cifs_ses
*ses
,
306 struct TCP_Server_Info
*server
,
307 struct nls_table
*nls_info
);
308 extern int cifs_enable_signing(struct TCP_Server_Info
*server
, bool mnt_sign_required
);
309 extern int CIFSSMBNegotiate(const unsigned int xid
,
310 struct cifs_ses
*ses
,
311 struct TCP_Server_Info
*server
);
313 extern int CIFSTCon(const unsigned int xid
, struct cifs_ses
*ses
,
314 const char *tree
, struct cifs_tcon
*tcon
,
315 const struct nls_table
*);
317 extern int CIFSFindFirst(const unsigned int xid
, struct cifs_tcon
*tcon
,
318 const char *searchName
, struct cifs_sb_info
*cifs_sb
,
319 __u16
*searchHandle
, __u16 search_flags
,
320 struct cifs_search_info
*psrch_inf
,
323 extern int CIFSFindNext(const unsigned int xid
, struct cifs_tcon
*tcon
,
324 __u16 searchHandle
, __u16 search_flags
,
325 struct cifs_search_info
*psrch_inf
);
327 extern int CIFSFindClose(const unsigned int xid
, struct cifs_tcon
*tcon
,
328 const __u16 search_handle
);
330 extern int CIFSSMBQFileInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
331 u16 netfid
, FILE_ALL_INFO
*pFindData
);
332 extern int CIFSSMBQPathInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
333 const char *search_Name
, FILE_ALL_INFO
*data
,
334 int legacy
/* whether to use old info level */,
335 const struct nls_table
*nls_codepage
, int remap
);
336 extern int SMBQueryInformation(const unsigned int xid
, struct cifs_tcon
*tcon
,
337 const char *search_name
, FILE_ALL_INFO
*data
,
338 const struct nls_table
*nls_codepage
, int remap
);
340 extern int CIFSSMBUnixQFileInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
341 u16 netfid
, FILE_UNIX_BASIC_INFO
*pFindData
);
342 extern int CIFSSMBUnixQPathInfo(const unsigned int xid
,
343 struct cifs_tcon
*tcon
,
344 const unsigned char *searchName
,
345 FILE_UNIX_BASIC_INFO
*pFindData
,
346 const struct nls_table
*nls_codepage
, int remap
);
348 extern int CIFSGetDFSRefer(const unsigned int xid
, struct cifs_ses
*ses
,
349 const char *search_name
,
350 struct dfs_info3_param
**target_nodes
,
351 unsigned int *num_of_nodes
,
352 const struct nls_table
*nls_codepage
, int remap
);
354 extern int parse_dfs_referrals(struct get_dfs_referral_rsp
*rsp
, u32 rsp_size
,
355 unsigned int *num_of_nodes
,
356 struct dfs_info3_param
**target_nodes
,
357 const struct nls_table
*nls_codepage
, int remap
,
358 const char *searchName
, bool is_unicode
);
359 extern void reset_cifs_unix_caps(unsigned int xid
, struct cifs_tcon
*tcon
,
360 struct cifs_sb_info
*cifs_sb
,
361 struct smb3_fs_context
*ctx
);
362 extern int CIFSSMBQFSInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
363 struct kstatfs
*FSData
);
364 extern int SMBOldQFSInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
365 struct kstatfs
*FSData
);
366 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
369 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid
,
370 struct cifs_tcon
*tcon
);
371 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid
, struct cifs_tcon
*tcon
);
372 extern int CIFSSMBQFSUnixInfo(const unsigned int xid
, struct cifs_tcon
*tcon
);
373 extern int CIFSSMBQFSPosixInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
374 struct kstatfs
*FSData
);
376 extern int CIFSSMBSetPathInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
377 const char *fileName
, const FILE_BASIC_INFO
*data
,
378 const struct nls_table
*nls_codepage
,
379 struct cifs_sb_info
*cifs_sb
);
380 extern int CIFSSMBSetFileInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
381 const FILE_BASIC_INFO
*data
, __u16 fid
,
382 __u32 pid_of_opener
);
383 extern int CIFSSMBSetFileDisposition(const unsigned int xid
,
384 struct cifs_tcon
*tcon
,
385 bool delete_file
, __u16 fid
,
386 __u32 pid_of_opener
);
387 extern int CIFSSMBSetEOF(const unsigned int xid
, struct cifs_tcon
*tcon
,
388 const char *file_name
, __u64 size
,
389 struct cifs_sb_info
*cifs_sb
, bool set_allocation
);
390 extern int CIFSSMBSetFileSize(const unsigned int xid
, struct cifs_tcon
*tcon
,
391 struct cifsFileInfo
*cfile
, __u64 size
,
392 bool set_allocation
);
394 struct cifs_unix_set_info_args
{
404 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid
,
405 struct cifs_tcon
*tcon
,
406 const struct cifs_unix_set_info_args
*args
,
407 u16 fid
, u32 pid_of_opener
);
409 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid
,
410 struct cifs_tcon
*tcon
, const char *file_name
,
411 const struct cifs_unix_set_info_args
*args
,
412 const struct nls_table
*nls_codepage
,
415 extern int CIFSSMBMkDir(const unsigned int xid
, struct inode
*inode
,
416 umode_t mode
, struct cifs_tcon
*tcon
,
417 const char *name
, struct cifs_sb_info
*cifs_sb
);
418 extern int CIFSSMBRmDir(const unsigned int xid
, struct cifs_tcon
*tcon
,
419 const char *name
, struct cifs_sb_info
*cifs_sb
);
420 extern int CIFSPOSIXDelFile(const unsigned int xid
, struct cifs_tcon
*tcon
,
421 const char *name
, __u16 type
,
422 const struct nls_table
*nls_codepage
,
423 int remap_special_chars
);
424 extern int CIFSSMBDelFile(const unsigned int xid
, struct cifs_tcon
*tcon
,
425 const char *name
, struct cifs_sb_info
*cifs_sb
);
426 extern int CIFSSMBRename(const unsigned int xid
, struct cifs_tcon
*tcon
,
427 const char *from_name
, const char *to_name
,
428 struct cifs_sb_info
*cifs_sb
);
429 extern int CIFSSMBRenameOpenFile(const unsigned int xid
, struct cifs_tcon
*tcon
,
430 int netfid
, const char *target_name
,
431 const struct nls_table
*nls_codepage
,
432 int remap_special_chars
);
433 extern int CIFSCreateHardLink(const unsigned int xid
, struct cifs_tcon
*tcon
,
434 const char *from_name
, const char *to_name
,
435 struct cifs_sb_info
*cifs_sb
);
436 extern int CIFSUnixCreateHardLink(const unsigned int xid
,
437 struct cifs_tcon
*tcon
,
438 const char *fromName
, const char *toName
,
439 const struct nls_table
*nls_codepage
,
440 int remap_special_chars
);
441 extern int CIFSUnixCreateSymLink(const unsigned int xid
,
442 struct cifs_tcon
*tcon
,
443 const char *fromName
, const char *toName
,
444 const struct nls_table
*nls_codepage
, int remap
);
445 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid
,
446 struct cifs_tcon
*tcon
,
447 const unsigned char *searchName
, char **syminfo
,
448 const struct nls_table
*nls_codepage
, int remap
);
449 extern int CIFSSMBQuerySymLink(const unsigned int xid
, struct cifs_tcon
*tcon
,
450 __u16 fid
, char **symlinkinfo
,
451 const struct nls_table
*nls_codepage
);
452 extern int CIFSSMB_set_compression(const unsigned int xid
,
453 struct cifs_tcon
*tcon
, __u16 fid
);
454 extern int CIFS_open(const unsigned int xid
, struct cifs_open_parms
*oparms
,
455 int *oplock
, FILE_ALL_INFO
*buf
);
456 extern int SMBLegacyOpen(const unsigned int xid
, struct cifs_tcon
*tcon
,
457 const char *fileName
, const int disposition
,
458 const int access_flags
, const int omode
,
459 __u16
*netfid
, int *pOplock
, FILE_ALL_INFO
*,
460 const struct nls_table
*nls_codepage
, int remap
);
461 extern int CIFSPOSIXCreate(const unsigned int xid
, struct cifs_tcon
*tcon
,
462 u32 posix_flags
, __u64 mode
, __u16
*netfid
,
463 FILE_UNIX_BASIC_INFO
*pRetData
,
464 __u32
*pOplock
, const char *name
,
465 const struct nls_table
*nls_codepage
, int remap
);
466 extern int CIFSSMBClose(const unsigned int xid
, struct cifs_tcon
*tcon
,
467 const int smb_file_id
);
469 extern int CIFSSMBFlush(const unsigned int xid
, struct cifs_tcon
*tcon
,
470 const int smb_file_id
);
472 extern int CIFSSMBRead(const unsigned int xid
, struct cifs_io_parms
*io_parms
,
473 unsigned int *nbytes
, char **buf
,
474 int *return_buf_type
);
475 extern int CIFSSMBWrite(const unsigned int xid
, struct cifs_io_parms
*io_parms
,
476 unsigned int *nbytes
, const char *buf
);
477 extern int CIFSSMBWrite2(const unsigned int xid
, struct cifs_io_parms
*io_parms
,
478 unsigned int *nbytes
, struct kvec
*iov
, const int nvec
);
479 extern int CIFSGetSrvInodeNumber(const unsigned int xid
, struct cifs_tcon
*tcon
,
480 const char *search_name
, __u64
*inode_number
,
481 const struct nls_table
*nls_codepage
,
484 extern int cifs_lockv(const unsigned int xid
, struct cifs_tcon
*tcon
,
485 const __u16 netfid
, const __u8 lock_type
,
486 const __u32 num_unlock
, const __u32 num_lock
,
487 LOCKING_ANDX_RANGE
*buf
);
488 extern int CIFSSMBLock(const unsigned int xid
, struct cifs_tcon
*tcon
,
489 const __u16 netfid
, const __u32 netpid
, const __u64 len
,
490 const __u64 offset
, const __u32 numUnlock
,
491 const __u32 numLock
, const __u8 lockType
,
492 const bool waitFlag
, const __u8 oplock_level
);
493 extern int CIFSSMBPosixLock(const unsigned int xid
, struct cifs_tcon
*tcon
,
494 const __u16 smb_file_id
, const __u32 netpid
,
495 const loff_t start_offset
, const __u64 len
,
496 struct file_lock
*, const __u16 lock_type
,
497 const bool waitFlag
);
498 extern int CIFSSMBTDis(const unsigned int xid
, struct cifs_tcon
*tcon
);
499 extern int CIFSSMBEcho(struct TCP_Server_Info
*server
);
500 extern int CIFSSMBLogoff(const unsigned int xid
, struct cifs_ses
*ses
);
502 extern struct cifs_ses
*sesInfoAlloc(void);
503 extern void sesInfoFree(struct cifs_ses
*);
504 extern struct cifs_tcon
*tconInfoAlloc(void);
505 extern void tconInfoFree(struct cifs_tcon
*);
507 extern int cifs_sign_rqst(struct smb_rqst
*rqst
, struct TCP_Server_Info
*server
,
508 __u32
*pexpected_response_sequence_number
);
509 extern int cifs_sign_smbv(struct kvec
*iov
, int n_vec
, struct TCP_Server_Info
*,
511 extern int cifs_sign_smb(struct smb_hdr
*, struct TCP_Server_Info
*, __u32
*);
512 extern int cifs_verify_signature(struct smb_rqst
*rqst
,
513 struct TCP_Server_Info
*server
,
514 __u32 expected_sequence_number
);
515 extern int setup_ntlmv2_rsp(struct cifs_ses
*, const struct nls_table
*);
516 extern void cifs_crypto_secmech_release(struct TCP_Server_Info
*server
);
517 extern int calc_seckey(struct cifs_ses
*);
518 extern int generate_smb30signingkey(struct cifs_ses
*ses
,
519 struct TCP_Server_Info
*server
);
520 extern int generate_smb311signingkey(struct cifs_ses
*ses
,
521 struct TCP_Server_Info
*server
);
523 #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
524 extern int CIFSSMBCopy(unsigned int xid
,
525 struct cifs_tcon
*source_tcon
,
526 const char *fromName
,
527 const __u16 target_tid
,
528 const char *toName
, const int flags
,
529 const struct nls_table
*nls_codepage
,
530 int remap_special_chars
);
531 extern ssize_t
CIFSSMBQAllEAs(const unsigned int xid
, struct cifs_tcon
*tcon
,
532 const unsigned char *searchName
,
533 const unsigned char *ea_name
, char *EAData
,
534 size_t bufsize
, struct cifs_sb_info
*cifs_sb
);
535 extern int CIFSSMBSetEA(const unsigned int xid
, struct cifs_tcon
*tcon
,
536 const char *fileName
, const char *ea_name
,
537 const void *ea_value
, const __u16 ea_value_len
,
538 const struct nls_table
*nls_codepage
,
539 struct cifs_sb_info
*cifs_sb
);
540 extern int CIFSSMBGetCIFSACL(const unsigned int xid
, struct cifs_tcon
*tcon
,
541 __u16 fid
, struct cifs_ntsd
**acl_inf
, __u32
*buflen
);
542 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon
*, __u16
,
543 struct cifs_ntsd
*, __u32
, int);
544 extern int cifs_do_get_acl(const unsigned int xid
, struct cifs_tcon
*tcon
,
545 const unsigned char *searchName
,
546 struct posix_acl
**acl
, const int acl_type
,
547 const struct nls_table
*nls_codepage
, int remap
);
548 extern int cifs_do_set_acl(const unsigned int xid
, struct cifs_tcon
*tcon
,
549 const unsigned char *fileName
,
550 const struct posix_acl
*acl
, const int acl_type
,
551 const struct nls_table
*nls_codepage
, int remap
);
552 extern int CIFSGetExtAttr(const unsigned int xid
, struct cifs_tcon
*tcon
,
553 const int netfid
, __u64
*pExtAttrBits
, __u64
*pMask
);
554 #endif /* CIFS_ALLOW_INSECURE_LEGACY */
555 extern void cifs_autodisable_serverino(struct cifs_sb_info
*cifs_sb
);
556 extern bool couldbe_mf_symlink(const struct cifs_fattr
*fattr
);
557 extern int check_mf_symlink(unsigned int xid
, struct cifs_tcon
*tcon
,
558 struct cifs_sb_info
*cifs_sb
,
559 struct cifs_fattr
*fattr
,
560 const unsigned char *path
);
561 extern int E_md4hash(const unsigned char *passwd
, unsigned char *p16
,
562 const struct nls_table
*codepage
);
565 cifs_setup_volume_info(struct smb3_fs_context
*ctx
, const char *mntopts
, const char *devname
);
567 extern struct TCP_Server_Info
*
568 cifs_find_tcp_session(struct smb3_fs_context
*ctx
);
570 extern void cifs_put_smb_ses(struct cifs_ses
*ses
);
572 extern struct cifs_ses
*
573 cifs_get_smb_ses(struct TCP_Server_Info
*server
, struct smb3_fs_context
*ctx
);
575 void cifs_readdata_release(struct kref
*refcount
);
576 int cifs_async_readv(struct cifs_readdata
*rdata
);
577 int cifs_readv_receive(struct TCP_Server_Info
*server
, struct mid_q_entry
*mid
);
579 int cifs_async_writev(struct cifs_writedata
*wdata
,
580 void (*release
)(struct kref
*kref
));
581 void cifs_writev_complete(struct work_struct
*work
);
582 struct cifs_writedata
*cifs_writedata_alloc(unsigned int nr_pages
,
583 work_func_t complete
);
584 struct cifs_writedata
*cifs_writedata_direct_alloc(struct page
**pages
,
585 work_func_t complete
);
586 void cifs_writedata_release(struct kref
*refcount
);
587 int cifs_query_mf_symlink(unsigned int xid
, struct cifs_tcon
*tcon
,
588 struct cifs_sb_info
*cifs_sb
,
589 const unsigned char *path
, char *pbuf
,
590 unsigned int *pbytes_read
);
591 int cifs_create_mf_symlink(unsigned int xid
, struct cifs_tcon
*tcon
,
592 struct cifs_sb_info
*cifs_sb
,
593 const unsigned char *path
, char *pbuf
,
594 unsigned int *pbytes_written
);
595 int __cifs_calc_signature(struct smb_rqst
*rqst
,
596 struct TCP_Server_Info
*server
, char *signature
,
597 struct shash_desc
*shash
);
598 enum securityEnum
cifs_select_sectype(struct TCP_Server_Info
*,
600 struct cifs_aio_ctx
*cifs_aio_ctx_alloc(void);
601 void cifs_aio_ctx_release(struct kref
*refcount
);
602 int setup_aio_ctx_iter(struct cifs_aio_ctx
*ctx
, struct iov_iter
*iter
, int rw
);
604 int cifs_alloc_hash(const char *name
, struct shash_desc
**sdesc
);
605 void cifs_free_hash(struct shash_desc
**sdesc
);
607 void rqst_page_get_length(const struct smb_rqst
*rqst
, unsigned int page
,
608 unsigned int *len
, unsigned int *offset
);
610 cifs_ses_find_chan(struct cifs_ses
*ses
, struct TCP_Server_Info
*server
);
611 int cifs_try_adding_channels(struct cifs_sb_info
*cifs_sb
, struct cifs_ses
*ses
);
612 bool is_server_using_iface(struct TCP_Server_Info
*server
,
613 struct cifs_server_iface
*iface
);
614 bool is_ses_using_iface(struct cifs_ses
*ses
, struct cifs_server_iface
*iface
);
615 void cifs_ses_mark_for_reconnect(struct cifs_ses
*ses
);
618 cifs_ses_get_chan_index(struct cifs_ses
*ses
,
619 struct TCP_Server_Info
*server
);
621 cifs_chan_set_in_reconnect(struct cifs_ses
*ses
,
622 struct TCP_Server_Info
*server
);
624 cifs_chan_clear_in_reconnect(struct cifs_ses
*ses
,
625 struct TCP_Server_Info
*server
);
627 cifs_chan_in_reconnect(struct cifs_ses
*ses
,
628 struct TCP_Server_Info
*server
);
630 cifs_chan_set_need_reconnect(struct cifs_ses
*ses
,
631 struct TCP_Server_Info
*server
);
633 cifs_chan_clear_need_reconnect(struct cifs_ses
*ses
,
634 struct TCP_Server_Info
*server
);
636 cifs_chan_needs_reconnect(struct cifs_ses
*ses
,
637 struct TCP_Server_Info
*server
);
639 cifs_chan_is_iface_active(struct cifs_ses
*ses
,
640 struct TCP_Server_Info
*server
);
642 cifs_chan_update_iface(struct cifs_ses
*ses
, struct TCP_Server_Info
*server
);
644 SMB3_request_interfaces(const unsigned int xid
, struct cifs_tcon
*tcon
, bool in_mount
);
646 void extract_unc_hostname(const char *unc
, const char **h
, size_t *len
);
647 int copy_path_name(char *dst
, const char *src
);
648 int smb2_parse_query_directory(struct cifs_tcon
*tcon
, struct kvec
*rsp_iov
,
650 struct cifs_search_info
*srch_inf
);
652 struct super_block
*cifs_get_tcp_super(struct TCP_Server_Info
*server
);
653 void cifs_put_tcp_super(struct super_block
*sb
);
654 int cifs_update_super_prepath(struct cifs_sb_info
*cifs_sb
, char *prefix
);
655 char *extract_hostname(const char *unc
);
656 char *extract_sharename(const char *unc
);
658 #ifdef CONFIG_CIFS_DFS_UPCALL
659 static inline int get_dfs_path(const unsigned int xid
, struct cifs_ses
*ses
,
660 const char *old_path
,
661 const struct nls_table
*nls_codepage
,
662 struct dfs_info3_param
*referral
, int remap
)
664 return dfs_cache_find(xid
, ses
, nls_codepage
, remap
, old_path
,
668 int match_target_ip(struct TCP_Server_Info
*server
,
669 const char *share
, size_t share_len
,
672 int cifs_dfs_query_info_nonascii_quirk(const unsigned int xid
,
673 struct cifs_tcon
*tcon
,
674 struct cifs_sb_info
*cifs_sb
,
675 const char *dfs_link_path
);
678 static inline int cifs_create_options(struct cifs_sb_info
*cifs_sb
, int options
)
680 if (cifs_sb
&& (backup_cred(cifs_sb
)))
681 return options
| CREATE_OPEN_BACKUP_INTENT
;
686 struct super_block
*cifs_get_tcon_super(struct cifs_tcon
*tcon
);
687 void cifs_put_tcon_super(struct super_block
*sb
);
689 #endif /* _CIFSPROTO_H */