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 extern struct cifsFileInfo
*cifs_new_fileinfo(struct cifs_fid
*fid
,
187 struct tcon_link
*tlink
,
189 extern int cifs_posix_open(const char *full_path
, struct inode
**inode
,
190 struct super_block
*sb
, int mode
,
191 unsigned int f_flags
, __u32
*oplock
, __u16
*netfid
,
193 void cifs_fill_uniqueid(struct super_block
*sb
, struct cifs_fattr
*fattr
);
194 extern void cifs_unix_basic_to_fattr(struct cifs_fattr
*fattr
,
195 FILE_UNIX_BASIC_INFO
*info
,
196 struct cifs_sb_info
*cifs_sb
);
197 extern void cifs_dir_info_to_fattr(struct cifs_fattr
*, FILE_DIRECTORY_INFO
*,
198 struct cifs_sb_info
*);
199 extern int cifs_fattr_to_inode(struct inode
*inode
, struct cifs_fattr
*fattr
);
200 extern struct inode
*cifs_iget(struct super_block
*sb
,
201 struct cifs_fattr
*fattr
);
203 extern int cifs_get_inode_info(struct inode
**inode
, const char *full_path
,
204 FILE_ALL_INFO
*data
, struct super_block
*sb
,
205 int xid
, const struct cifs_fid
*fid
);
206 extern int smb311_posix_get_inode_info(struct inode
**pinode
, const char *search_path
,
207 struct super_block
*sb
, unsigned int xid
);
208 extern int cifs_get_inode_info_unix(struct inode
**pinode
,
209 const unsigned char *search_path
,
210 struct super_block
*sb
, unsigned int xid
);
211 extern int cifs_set_file_info(struct inode
*inode
, struct iattr
*attrs
,
212 unsigned int xid
, const char *full_path
, __u32 dosattr
);
213 extern int cifs_rename_pending_delete(const char *full_path
,
214 struct dentry
*dentry
,
215 const unsigned int xid
);
216 extern int sid_to_id(struct cifs_sb_info
*cifs_sb
, struct cifs_sid
*psid
,
217 struct cifs_fattr
*fattr
, uint sidtype
);
218 extern int cifs_acl_to_fattr(struct cifs_sb_info
*cifs_sb
,
219 struct cifs_fattr
*fattr
, struct inode
*inode
,
220 bool get_mode_from_special_sid
,
221 const char *path
, const struct cifs_fid
*pfid
);
222 extern int id_mode_to_cifs_acl(struct inode
*inode
, const char *path
, __u64
*pnmode
,
223 kuid_t uid
, kgid_t gid
);
224 extern struct cifs_ntsd
*get_cifs_acl(struct cifs_sb_info
*, struct inode
*,
225 const char *, u32
*, u32
);
226 extern struct cifs_ntsd
*get_cifs_acl_by_fid(struct cifs_sb_info
*,
227 const struct cifs_fid
*, u32
*, u32
);
228 extern int set_cifs_acl(struct cifs_ntsd
*, __u32
, struct inode
*,
230 extern unsigned int setup_authusers_ACE(struct cifs_ace
*pace
);
231 extern unsigned int setup_special_mode_ACE(struct cifs_ace
*pace
, __u64 nmode
);
232 extern unsigned int setup_special_user_owner_ACE(struct cifs_ace
*pace
);
234 extern void dequeue_mid(struct mid_q_entry
*mid
, bool malformed
);
235 extern int cifs_read_from_socket(struct TCP_Server_Info
*server
, char *buf
,
236 unsigned int to_read
);
237 extern ssize_t
cifs_discard_from_socket(struct TCP_Server_Info
*server
,
239 extern int cifs_read_page_from_socket(struct TCP_Server_Info
*server
,
241 unsigned int page_offset
,
242 unsigned int to_read
);
243 extern int cifs_setup_cifs_sb(struct cifs_sb_info
*cifs_sb
);
244 extern int cifs_match_super(struct super_block
*, void *);
245 extern int cifs_mount(struct cifs_sb_info
*cifs_sb
, struct smb3_fs_context
*ctx
);
246 extern void cifs_umount(struct cifs_sb_info
*);
247 extern void cifs_mark_open_files_invalid(struct cifs_tcon
*tcon
);
248 extern void cifs_reopen_persistent_handles(struct cifs_tcon
*tcon
);
250 extern bool cifs_find_lock_conflict(struct cifsFileInfo
*cfile
, __u64 offset
,
251 __u64 length
, __u8 type
, __u16 flags
,
252 struct cifsLockInfo
**conf_lock
,
254 extern void cifs_add_pending_open(struct cifs_fid
*fid
,
255 struct tcon_link
*tlink
,
256 struct cifs_pending_open
*open
);
257 extern void cifs_add_pending_open_locked(struct cifs_fid
*fid
,
258 struct tcon_link
*tlink
,
259 struct cifs_pending_open
*open
);
260 extern void cifs_del_pending_open(struct cifs_pending_open
*open
);
262 extern bool cifs_is_deferred_close(struct cifsFileInfo
*cfile
,
263 struct cifs_deferred_close
**dclose
);
265 extern void cifs_add_deferred_close(struct cifsFileInfo
*cfile
,
266 struct cifs_deferred_close
*dclose
);
268 extern void cifs_del_deferred_close(struct cifsFileInfo
*cfile
);
270 extern void cifs_close_deferred_file(struct cifsInodeInfo
*cifs_inode
);
272 extern void cifs_close_all_deferred_files(struct cifs_tcon
*cifs_tcon
);
274 extern void cifs_close_deferred_file_under_dentry(struct cifs_tcon
*cifs_tcon
,
276 extern struct TCP_Server_Info
*
277 cifs_get_tcp_session(struct smb3_fs_context
*ctx
,
278 struct TCP_Server_Info
*primary_server
);
279 extern void cifs_put_tcp_session(struct TCP_Server_Info
*server
,
281 extern void cifs_put_tcon(struct cifs_tcon
*tcon
);
283 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
284 extern void cifs_dfs_release_automount_timer(void);
285 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
286 #define cifs_dfs_release_automount_timer() do { } while (0)
287 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
289 void cifs_proc_init(void);
290 void cifs_proc_clean(void);
292 extern void cifs_move_llist(struct list_head
*source
, struct list_head
*dest
);
293 extern void cifs_free_llist(struct list_head
*llist
);
294 extern void cifs_del_lock_waiters(struct cifsLockInfo
*lock
);
296 extern int cifs_tree_connect(const unsigned int xid
, struct cifs_tcon
*tcon
,
297 const struct nls_table
*nlsc
);
299 extern int cifs_negotiate_protocol(const unsigned int xid
,
300 struct cifs_ses
*ses
,
301 struct TCP_Server_Info
*server
);
302 extern int cifs_setup_session(const unsigned int xid
, struct cifs_ses
*ses
,
303 struct TCP_Server_Info
*server
,
304 struct nls_table
*nls_info
);
305 extern int cifs_enable_signing(struct TCP_Server_Info
*server
, bool mnt_sign_required
);
306 extern int CIFSSMBNegotiate(const unsigned int xid
,
307 struct cifs_ses
*ses
,
308 struct TCP_Server_Info
*server
);
310 extern int CIFSTCon(const unsigned int xid
, struct cifs_ses
*ses
,
311 const char *tree
, struct cifs_tcon
*tcon
,
312 const struct nls_table
*);
314 extern int CIFSFindFirst(const unsigned int xid
, struct cifs_tcon
*tcon
,
315 const char *searchName
, struct cifs_sb_info
*cifs_sb
,
316 __u16
*searchHandle
, __u16 search_flags
,
317 struct cifs_search_info
*psrch_inf
,
320 extern int CIFSFindNext(const unsigned int xid
, struct cifs_tcon
*tcon
,
321 __u16 searchHandle
, __u16 search_flags
,
322 struct cifs_search_info
*psrch_inf
);
324 extern int CIFSFindClose(const unsigned int xid
, struct cifs_tcon
*tcon
,
325 const __u16 search_handle
);
327 extern int CIFSSMBQFileInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
328 u16 netfid
, FILE_ALL_INFO
*pFindData
);
329 extern int CIFSSMBQPathInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
330 const char *search_Name
, FILE_ALL_INFO
*data
,
331 int legacy
/* whether to use old info level */,
332 const struct nls_table
*nls_codepage
, int remap
);
333 extern int SMBQueryInformation(const unsigned int xid
, struct cifs_tcon
*tcon
,
334 const char *search_name
, FILE_ALL_INFO
*data
,
335 const struct nls_table
*nls_codepage
, int remap
);
337 extern int CIFSSMBUnixQFileInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
338 u16 netfid
, FILE_UNIX_BASIC_INFO
*pFindData
);
339 extern int CIFSSMBUnixQPathInfo(const unsigned int xid
,
340 struct cifs_tcon
*tcon
,
341 const unsigned char *searchName
,
342 FILE_UNIX_BASIC_INFO
*pFindData
,
343 const struct nls_table
*nls_codepage
, int remap
);
345 extern int CIFSGetDFSRefer(const unsigned int xid
, struct cifs_ses
*ses
,
346 const char *search_name
,
347 struct dfs_info3_param
**target_nodes
,
348 unsigned int *num_of_nodes
,
349 const struct nls_table
*nls_codepage
, int remap
);
351 extern int parse_dfs_referrals(struct get_dfs_referral_rsp
*rsp
, u32 rsp_size
,
352 unsigned int *num_of_nodes
,
353 struct dfs_info3_param
**target_nodes
,
354 const struct nls_table
*nls_codepage
, int remap
,
355 const char *searchName
, bool is_unicode
);
356 extern void reset_cifs_unix_caps(unsigned int xid
, struct cifs_tcon
*tcon
,
357 struct cifs_sb_info
*cifs_sb
,
358 struct smb3_fs_context
*ctx
);
359 extern int CIFSSMBQFSInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
360 struct kstatfs
*FSData
);
361 extern int SMBOldQFSInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
362 struct kstatfs
*FSData
);
363 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
366 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid
,
367 struct cifs_tcon
*tcon
);
368 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid
, struct cifs_tcon
*tcon
);
369 extern int CIFSSMBQFSUnixInfo(const unsigned int xid
, struct cifs_tcon
*tcon
);
370 extern int CIFSSMBQFSPosixInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
371 struct kstatfs
*FSData
);
373 extern int CIFSSMBSetPathInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
374 const char *fileName
, const FILE_BASIC_INFO
*data
,
375 const struct nls_table
*nls_codepage
,
376 struct cifs_sb_info
*cifs_sb
);
377 extern int CIFSSMBSetFileInfo(const unsigned int xid
, struct cifs_tcon
*tcon
,
378 const FILE_BASIC_INFO
*data
, __u16 fid
,
379 __u32 pid_of_opener
);
380 extern int CIFSSMBSetFileDisposition(const unsigned int xid
,
381 struct cifs_tcon
*tcon
,
382 bool delete_file
, __u16 fid
,
383 __u32 pid_of_opener
);
384 extern int CIFSSMBSetEOF(const unsigned int xid
, struct cifs_tcon
*tcon
,
385 const char *file_name
, __u64 size
,
386 struct cifs_sb_info
*cifs_sb
, bool set_allocation
);
387 extern int CIFSSMBSetFileSize(const unsigned int xid
, struct cifs_tcon
*tcon
,
388 struct cifsFileInfo
*cfile
, __u64 size
,
389 bool set_allocation
);
391 struct cifs_unix_set_info_args
{
401 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid
,
402 struct cifs_tcon
*tcon
,
403 const struct cifs_unix_set_info_args
*args
,
404 u16 fid
, u32 pid_of_opener
);
406 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid
,
407 struct cifs_tcon
*tcon
, const char *file_name
,
408 const struct cifs_unix_set_info_args
*args
,
409 const struct nls_table
*nls_codepage
,
412 extern int CIFSSMBMkDir(const unsigned int xid
, struct inode
*inode
,
413 umode_t mode
, struct cifs_tcon
*tcon
,
414 const char *name
, struct cifs_sb_info
*cifs_sb
);
415 extern int CIFSSMBRmDir(const unsigned int xid
, struct cifs_tcon
*tcon
,
416 const char *name
, struct cifs_sb_info
*cifs_sb
);
417 extern int CIFSPOSIXDelFile(const unsigned int xid
, struct cifs_tcon
*tcon
,
418 const char *name
, __u16 type
,
419 const struct nls_table
*nls_codepage
,
420 int remap_special_chars
);
421 extern int CIFSSMBDelFile(const unsigned int xid
, struct cifs_tcon
*tcon
,
422 const char *name
, struct cifs_sb_info
*cifs_sb
);
423 extern int CIFSSMBRename(const unsigned int xid
, struct cifs_tcon
*tcon
,
424 const char *from_name
, const char *to_name
,
425 struct cifs_sb_info
*cifs_sb
);
426 extern int CIFSSMBRenameOpenFile(const unsigned int xid
, struct cifs_tcon
*tcon
,
427 int netfid
, const char *target_name
,
428 const struct nls_table
*nls_codepage
,
429 int remap_special_chars
);
430 extern int CIFSCreateHardLink(const unsigned int xid
, struct cifs_tcon
*tcon
,
431 const char *from_name
, const char *to_name
,
432 struct cifs_sb_info
*cifs_sb
);
433 extern int CIFSUnixCreateHardLink(const unsigned int xid
,
434 struct cifs_tcon
*tcon
,
435 const char *fromName
, const char *toName
,
436 const struct nls_table
*nls_codepage
,
437 int remap_special_chars
);
438 extern int CIFSUnixCreateSymLink(const unsigned int xid
,
439 struct cifs_tcon
*tcon
,
440 const char *fromName
, const char *toName
,
441 const struct nls_table
*nls_codepage
, int remap
);
442 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid
,
443 struct cifs_tcon
*tcon
,
444 const unsigned char *searchName
, char **syminfo
,
445 const struct nls_table
*nls_codepage
, int remap
);
446 extern int CIFSSMBQuerySymLink(const unsigned int xid
, struct cifs_tcon
*tcon
,
447 __u16 fid
, char **symlinkinfo
,
448 const struct nls_table
*nls_codepage
);
449 extern int CIFSSMB_set_compression(const unsigned int xid
,
450 struct cifs_tcon
*tcon
, __u16 fid
);
451 extern int CIFS_open(const unsigned int xid
, struct cifs_open_parms
*oparms
,
452 int *oplock
, FILE_ALL_INFO
*buf
);
453 extern int SMBLegacyOpen(const unsigned int xid
, struct cifs_tcon
*tcon
,
454 const char *fileName
, const int disposition
,
455 const int access_flags
, const int omode
,
456 __u16
*netfid
, int *pOplock
, FILE_ALL_INFO
*,
457 const struct nls_table
*nls_codepage
, int remap
);
458 extern int CIFSPOSIXCreate(const unsigned int xid
, struct cifs_tcon
*tcon
,
459 u32 posix_flags
, __u64 mode
, __u16
*netfid
,
460 FILE_UNIX_BASIC_INFO
*pRetData
,
461 __u32
*pOplock
, const char *name
,
462 const struct nls_table
*nls_codepage
, int remap
);
463 extern int CIFSSMBClose(const unsigned int xid
, struct cifs_tcon
*tcon
,
464 const int smb_file_id
);
466 extern int CIFSSMBFlush(const unsigned int xid
, struct cifs_tcon
*tcon
,
467 const int smb_file_id
);
469 extern int CIFSSMBRead(const unsigned int xid
, struct cifs_io_parms
*io_parms
,
470 unsigned int *nbytes
, char **buf
,
471 int *return_buf_type
);
472 extern int CIFSSMBWrite(const unsigned int xid
, struct cifs_io_parms
*io_parms
,
473 unsigned int *nbytes
, const char *buf
);
474 extern int CIFSSMBWrite2(const unsigned int xid
, struct cifs_io_parms
*io_parms
,
475 unsigned int *nbytes
, struct kvec
*iov
, const int nvec
);
476 extern int CIFSGetSrvInodeNumber(const unsigned int xid
, struct cifs_tcon
*tcon
,
477 const char *search_name
, __u64
*inode_number
,
478 const struct nls_table
*nls_codepage
,
481 extern int cifs_lockv(const unsigned int xid
, struct cifs_tcon
*tcon
,
482 const __u16 netfid
, const __u8 lock_type
,
483 const __u32 num_unlock
, const __u32 num_lock
,
484 LOCKING_ANDX_RANGE
*buf
);
485 extern int CIFSSMBLock(const unsigned int xid
, struct cifs_tcon
*tcon
,
486 const __u16 netfid
, const __u32 netpid
, const __u64 len
,
487 const __u64 offset
, const __u32 numUnlock
,
488 const __u32 numLock
, const __u8 lockType
,
489 const bool waitFlag
, const __u8 oplock_level
);
490 extern int CIFSSMBPosixLock(const unsigned int xid
, struct cifs_tcon
*tcon
,
491 const __u16 smb_file_id
, const __u32 netpid
,
492 const loff_t start_offset
, const __u64 len
,
493 struct file_lock
*, const __u16 lock_type
,
494 const bool waitFlag
);
495 extern int CIFSSMBTDis(const unsigned int xid
, struct cifs_tcon
*tcon
);
496 extern int CIFSSMBEcho(struct TCP_Server_Info
*server
);
497 extern int CIFSSMBLogoff(const unsigned int xid
, struct cifs_ses
*ses
);
499 extern struct cifs_ses
*sesInfoAlloc(void);
500 extern void sesInfoFree(struct cifs_ses
*);
501 extern struct cifs_tcon
*tconInfoAlloc(void);
502 extern void tconInfoFree(struct cifs_tcon
*);
504 extern int cifs_sign_rqst(struct smb_rqst
*rqst
, struct TCP_Server_Info
*server
,
505 __u32
*pexpected_response_sequence_number
);
506 extern int cifs_sign_smbv(struct kvec
*iov
, int n_vec
, struct TCP_Server_Info
*,
508 extern int cifs_sign_smb(struct smb_hdr
*, struct TCP_Server_Info
*, __u32
*);
509 extern int cifs_verify_signature(struct smb_rqst
*rqst
,
510 struct TCP_Server_Info
*server
,
511 __u32 expected_sequence_number
);
512 extern int setup_ntlmv2_rsp(struct cifs_ses
*, const struct nls_table
*);
513 extern void cifs_crypto_secmech_release(struct TCP_Server_Info
*server
);
514 extern int calc_seckey(struct cifs_ses
*);
515 extern int generate_smb30signingkey(struct cifs_ses
*ses
,
516 struct TCP_Server_Info
*server
);
517 extern int generate_smb311signingkey(struct cifs_ses
*ses
,
518 struct TCP_Server_Info
*server
);
520 #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
521 extern int CIFSSMBCopy(unsigned int xid
,
522 struct cifs_tcon
*source_tcon
,
523 const char *fromName
,
524 const __u16 target_tid
,
525 const char *toName
, const int flags
,
526 const struct nls_table
*nls_codepage
,
527 int remap_special_chars
);
528 extern ssize_t
CIFSSMBQAllEAs(const unsigned int xid
, struct cifs_tcon
*tcon
,
529 const unsigned char *searchName
,
530 const unsigned char *ea_name
, char *EAData
,
531 size_t bufsize
, struct cifs_sb_info
*cifs_sb
);
532 extern int CIFSSMBSetEA(const unsigned int xid
, struct cifs_tcon
*tcon
,
533 const char *fileName
, const char *ea_name
,
534 const void *ea_value
, const __u16 ea_value_len
,
535 const struct nls_table
*nls_codepage
,
536 struct cifs_sb_info
*cifs_sb
);
537 extern int CIFSSMBGetCIFSACL(const unsigned int xid
, struct cifs_tcon
*tcon
,
538 __u16 fid
, struct cifs_ntsd
**acl_inf
, __u32
*buflen
);
539 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon
*, __u16
,
540 struct cifs_ntsd
*, __u32
, int);
541 extern int CIFSSMBGetPosixACL(const unsigned int xid
, struct cifs_tcon
*tcon
,
542 const unsigned char *searchName
,
543 char *acl_inf
, const int buflen
, const int acl_type
,
544 const struct nls_table
*nls_codepage
, int remap_special_chars
);
545 extern int CIFSSMBSetPosixACL(const unsigned int xid
, struct cifs_tcon
*tcon
,
546 const unsigned char *fileName
,
547 const char *local_acl
, const int buflen
, const int acl_type
,
548 const struct nls_table
*nls_codepage
, int remap_special_chars
);
549 extern int CIFSGetExtAttr(const unsigned int xid
, struct cifs_tcon
*tcon
,
550 const int netfid
, __u64
*pExtAttrBits
, __u64
*pMask
);
551 #endif /* CIFS_ALLOW_INSECURE_LEGACY */
552 extern void cifs_autodisable_serverino(struct cifs_sb_info
*cifs_sb
);
553 extern bool couldbe_mf_symlink(const struct cifs_fattr
*fattr
);
554 extern int check_mf_symlink(unsigned int xid
, struct cifs_tcon
*tcon
,
555 struct cifs_sb_info
*cifs_sb
,
556 struct cifs_fattr
*fattr
,
557 const unsigned char *path
);
558 extern int E_md4hash(const unsigned char *passwd
, unsigned char *p16
,
559 const struct nls_table
*codepage
);
562 cifs_setup_volume_info(struct smb3_fs_context
*ctx
, const char *mntopts
, const char *devname
);
564 extern struct TCP_Server_Info
*
565 cifs_find_tcp_session(struct smb3_fs_context
*ctx
);
567 extern void cifs_put_smb_ses(struct cifs_ses
*ses
);
569 extern struct cifs_ses
*
570 cifs_get_smb_ses(struct TCP_Server_Info
*server
, struct smb3_fs_context
*ctx
);
572 void cifs_readdata_release(struct kref
*refcount
);
573 int cifs_async_readv(struct cifs_readdata
*rdata
);
574 int cifs_readv_receive(struct TCP_Server_Info
*server
, struct mid_q_entry
*mid
);
576 int cifs_async_writev(struct cifs_writedata
*wdata
,
577 void (*release
)(struct kref
*kref
));
578 void cifs_writev_complete(struct work_struct
*work
);
579 struct cifs_writedata
*cifs_writedata_alloc(unsigned int nr_pages
,
580 work_func_t complete
);
581 struct cifs_writedata
*cifs_writedata_direct_alloc(struct page
**pages
,
582 work_func_t complete
);
583 void cifs_writedata_release(struct kref
*refcount
);
584 int cifs_query_mf_symlink(unsigned int xid
, struct cifs_tcon
*tcon
,
585 struct cifs_sb_info
*cifs_sb
,
586 const unsigned char *path
, char *pbuf
,
587 unsigned int *pbytes_read
);
588 int cifs_create_mf_symlink(unsigned int xid
, struct cifs_tcon
*tcon
,
589 struct cifs_sb_info
*cifs_sb
,
590 const unsigned char *path
, char *pbuf
,
591 unsigned int *pbytes_written
);
592 int __cifs_calc_signature(struct smb_rqst
*rqst
,
593 struct TCP_Server_Info
*server
, char *signature
,
594 struct shash_desc
*shash
);
595 enum securityEnum
cifs_select_sectype(struct TCP_Server_Info
*,
597 struct cifs_aio_ctx
*cifs_aio_ctx_alloc(void);
598 void cifs_aio_ctx_release(struct kref
*refcount
);
599 int setup_aio_ctx_iter(struct cifs_aio_ctx
*ctx
, struct iov_iter
*iter
, int rw
);
601 int cifs_alloc_hash(const char *name
, struct crypto_shash
**shash
,
602 struct sdesc
**sdesc
);
603 void cifs_free_hash(struct crypto_shash
**shash
, struct sdesc
**sdesc
);
605 extern void rqst_page_get_length(struct smb_rqst
*rqst
, unsigned int page
,
606 unsigned int *len
, unsigned int *offset
);
608 cifs_ses_find_chan(struct cifs_ses
*ses
, struct TCP_Server_Info
*server
);
609 int cifs_try_adding_channels(struct cifs_sb_info
*cifs_sb
, struct cifs_ses
*ses
);
610 bool is_server_using_iface(struct TCP_Server_Info
*server
,
611 struct cifs_server_iface
*iface
);
612 bool is_ses_using_iface(struct cifs_ses
*ses
, struct cifs_server_iface
*iface
);
613 void cifs_ses_mark_for_reconnect(struct cifs_ses
*ses
);
616 cifs_ses_get_chan_index(struct cifs_ses
*ses
,
617 struct TCP_Server_Info
*server
);
619 cifs_chan_set_in_reconnect(struct cifs_ses
*ses
,
620 struct TCP_Server_Info
*server
);
622 cifs_chan_clear_in_reconnect(struct cifs_ses
*ses
,
623 struct TCP_Server_Info
*server
);
625 cifs_chan_in_reconnect(struct cifs_ses
*ses
,
626 struct TCP_Server_Info
*server
);
628 cifs_chan_set_need_reconnect(struct cifs_ses
*ses
,
629 struct TCP_Server_Info
*server
);
631 cifs_chan_clear_need_reconnect(struct cifs_ses
*ses
,
632 struct TCP_Server_Info
*server
);
634 cifs_chan_needs_reconnect(struct cifs_ses
*ses
,
635 struct TCP_Server_Info
*server
);
637 cifs_chan_is_iface_active(struct cifs_ses
*ses
,
638 struct TCP_Server_Info
*server
);
640 cifs_chan_update_iface(struct cifs_ses
*ses
, struct TCP_Server_Info
*server
);
642 SMB3_request_interfaces(const unsigned int xid
, struct cifs_tcon
*tcon
);
644 void extract_unc_hostname(const char *unc
, const char **h
, size_t *len
);
645 int copy_path_name(char *dst
, const char *src
);
646 int smb2_parse_query_directory(struct cifs_tcon
*tcon
, struct kvec
*rsp_iov
,
648 struct cifs_search_info
*srch_inf
);
650 struct super_block
*cifs_get_tcp_super(struct TCP_Server_Info
*server
);
651 void cifs_put_tcp_super(struct super_block
*sb
);
652 int cifs_update_super_prepath(struct cifs_sb_info
*cifs_sb
, char *prefix
);
653 char *extract_hostname(const char *unc
);
654 char *extract_sharename(const char *unc
);
656 #ifdef CONFIG_CIFS_DFS_UPCALL
657 static inline int get_dfs_path(const unsigned int xid
, struct cifs_ses
*ses
,
658 const char *old_path
,
659 const struct nls_table
*nls_codepage
,
660 struct dfs_info3_param
*referral
, int remap
)
662 return dfs_cache_find(xid
, ses
, nls_codepage
, remap
, old_path
,
666 int match_target_ip(struct TCP_Server_Info
*server
,
667 const char *share
, size_t share_len
,
670 int cifs_dfs_query_info_nonascii_quirk(const unsigned int xid
,
671 struct cifs_tcon
*tcon
,
672 struct cifs_sb_info
*cifs_sb
,
673 const char *dfs_link_path
);
676 static inline int cifs_create_options(struct cifs_sb_info
*cifs_sb
, int options
)
678 if (cifs_sb
&& (backup_cred(cifs_sb
)))
679 return options
| CREATE_OPEN_BACKUP_INTENT
;
684 struct super_block
*cifs_get_tcon_super(struct cifs_tcon
*tcon
);
685 void cifs_put_tcon_super(struct super_block
*sb
);
687 #endif /* _CIFSPROTO_H */