4 * Copyright (c) International Business Machines Corp., 2002,2008
5 * Author(s): Steve French (sfrench@us.ibm.com)
7 * This library is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published
9 * by the Free Software Foundation; either version 2.1 of the License, or
10 * (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
15 * the GNU Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include <linux/nls.h>
25 #ifdef CONFIG_CIFS_DFS_UPCALL
26 #include "dfs_cache.h"
34 *****************************************************************
36 *****************************************************************
39 extern struct smb_hdr *cifs_buf_get(void);
40 extern void cifs_buf_release(void *);
41 extern struct smb_hdr *cifs_small_buf_get(void);
42 extern void cifs_small_buf_release(void *);
43 extern void free_rsp_buf(int, void *);
44 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
45 unsigned int /* length */);
46 extern unsigned int _get_xid(void);
47 extern void _free_xid(unsigned int);
50 unsigned int __xid = _get_xid(); \
51 cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n", \
53 from_kuid(&init_user_ns, current_fsuid())); \
54 trace_smb3_enter(__xid, __func__); \
58 #define free_xid(curr_xid) \
60 _free_xid(curr_xid); \
61 cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n", \
62 __func__, curr_xid, (int)rc); \
64 trace_smb3_exit_err(curr_xid, __func__, (int)rc); \
66 trace_smb3_exit_done(curr_xid, __func__); \
68 extern int init_cifs_idmap(void);
69 extern void exit_cifs_idmap(void);
70 extern int init_cifs_spnego(void);
71 extern void exit_cifs_spnego(void);
72 extern char *build_path_from_dentry(struct dentry *);
73 extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
75 extern char *cifs_build_path_to_root(struct smb_vol *vol,
76 struct cifs_sb_info *cifs_sb,
77 struct cifs_tcon *tcon,
79 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
80 extern char *cifs_compose_mount_options(const char *sb_mountdata,
81 const char *fullpath, const struct dfs_info3_param *ref,
83 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
84 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
85 struct TCP_Server_Info *server);
86 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
87 extern void cifs_delete_mid(struct mid_q_entry *mid);
88 extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
89 extern void cifs_wake_up_task(struct mid_q_entry *mid);
90 extern int cifs_handle_standard(struct TCP_Server_Info *server,
91 struct mid_q_entry *mid);
92 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
93 extern int cifs_call_async(struct TCP_Server_Info *server,
94 struct smb_rqst *rqst,
95 mid_receive_t *receive, mid_callback_t *callback,
96 mid_handle_t *handle, void *cbdata, const int flags,
97 const struct cifs_credits *exist_credits);
98 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
99 struct smb_rqst *rqst, int *resp_buf_type,
100 const int flags, struct kvec *resp_iov);
101 extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
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);
130 extern int cifs_reconnect(struct TCP_Server_Info *server);
131 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
132 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
133 extern bool backup_cred(struct cifs_sb_info *);
134 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
135 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
136 unsigned int bytes_written);
137 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
138 extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
140 struct cifsFileInfo **ret_file);
141 extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
142 struct cifsFileInfo **ret_file);
143 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
144 extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
145 struct cifsFileInfo **ret_file);
146 extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
147 extern int decode_negTokenInit(unsigned char *security_blob, int length,
148 struct TCP_Server_Info *server);
149 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
150 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
151 extern int map_smb_to_linux_error(char *buf, bool logErr);
152 extern void header_assemble(struct smb_hdr *, char /* command */ ,
153 const struct cifs_tcon *, int /* length of
154 fixed section (word count) in two byte units */);
155 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
156 struct cifs_ses *ses,
158 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
159 enum securityEnum requested);
160 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
161 const struct nls_table *nls_cp);
162 extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
163 extern u64 cifs_UnixTimeToNT(struct timespec64);
164 extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
166 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
167 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
168 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
169 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
170 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
171 struct file_lock *flock, const unsigned int xid);
172 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
174 extern void cifs_down_write(struct rw_semaphore *sem);
175 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
177 struct tcon_link *tlink,
179 extern int cifs_posix_open(char *full_path, struct inode **inode,
180 struct super_block *sb, int mode,
181 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
183 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
184 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
185 FILE_UNIX_BASIC_INFO *info,
186 struct cifs_sb_info *cifs_sb);
187 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
188 struct cifs_sb_info *);
189 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
190 extern struct inode *cifs_iget(struct super_block *sb,
191 struct cifs_fattr *fattr);
193 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
194 FILE_ALL_INFO *data, struct super_block *sb,
195 int xid, const struct cifs_fid *fid);
196 extern int cifs_get_inode_info_unix(struct inode **pinode,
197 const unsigned char *search_path,
198 struct super_block *sb, unsigned int xid);
199 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
200 unsigned int xid, char *full_path, __u32 dosattr);
201 extern int cifs_rename_pending_delete(const char *full_path,
202 struct dentry *dentry,
203 const unsigned int xid);
204 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
205 struct cifs_fattr *fattr, struct inode *inode,
206 bool get_mode_from_special_sid,
207 const char *path, const struct cifs_fid *pfid);
208 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
210 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
211 const char *, u32 *);
212 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
213 const struct cifs_fid *, u32 *);
214 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
216 extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
218 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
219 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
220 unsigned int to_read);
221 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
223 unsigned int page_offset,
224 unsigned int to_read);
225 extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
226 struct cifs_sb_info *cifs_sb);
227 extern int cifs_match_super(struct super_block *, void *);
228 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
229 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
230 const char *devname, bool is_smb3);
231 extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *vol);
232 extern void cifs_umount(struct cifs_sb_info *);
233 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
234 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
236 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
237 __u64 length, __u8 type, __u16 flags,
238 struct cifsLockInfo **conf_lock,
240 extern void cifs_add_pending_open(struct cifs_fid *fid,
241 struct tcon_link *tlink,
242 struct cifs_pending_open *open);
243 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
244 struct tcon_link *tlink,
245 struct cifs_pending_open *open);
246 extern void cifs_del_pending_open(struct cifs_pending_open *open);
247 extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb_vol *vol);
248 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
250 extern void cifs_put_tcon(struct cifs_tcon *tcon);
252 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
253 extern void cifs_dfs_release_automount_timer(void);
254 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
255 #define cifs_dfs_release_automount_timer() do { } while (0)
256 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
258 void cifs_proc_init(void);
259 void cifs_proc_clean(void);
261 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
262 extern void cifs_free_llist(struct list_head *llist);
263 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
265 extern int cifs_negotiate_protocol(const unsigned int xid,
266 struct cifs_ses *ses);
267 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
268 struct nls_table *nls_info);
269 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
270 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
272 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
273 const char *tree, struct cifs_tcon *tcon,
274 const struct nls_table *);
276 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
277 const char *searchName, struct cifs_sb_info *cifs_sb,
278 __u16 *searchHandle, __u16 search_flags,
279 struct cifs_search_info *psrch_inf,
282 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
283 __u16 searchHandle, __u16 search_flags,
284 struct cifs_search_info *psrch_inf);
286 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
287 const __u16 search_handle);
289 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
290 u16 netfid, FILE_ALL_INFO *pFindData);
291 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
292 const char *search_Name, FILE_ALL_INFO *data,
293 int legacy /* whether to use old info level */,
294 const struct nls_table *nls_codepage, int remap);
295 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
296 const char *search_name, FILE_ALL_INFO *data,
297 const struct nls_table *nls_codepage, int remap);
299 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
300 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
301 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
302 struct cifs_tcon *tcon,
303 const unsigned char *searchName,
304 FILE_UNIX_BASIC_INFO *pFindData,
305 const struct nls_table *nls_codepage, int remap);
307 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
308 const char *search_name,
309 struct dfs_info3_param **target_nodes,
310 unsigned int *num_of_nodes,
311 const struct nls_table *nls_codepage, int remap);
313 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
314 unsigned int *num_of_nodes,
315 struct dfs_info3_param **target_nodes,
316 const struct nls_table *nls_codepage, int remap,
317 const char *searchName, bool is_unicode);
318 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
319 struct cifs_sb_info *cifs_sb,
320 struct smb_vol *vol);
321 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
322 struct kstatfs *FSData);
323 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
324 struct kstatfs *FSData);
325 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
328 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
329 struct cifs_tcon *tcon);
330 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
331 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
332 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
333 struct kstatfs *FSData);
335 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
336 const char *fileName, const FILE_BASIC_INFO *data,
337 const struct nls_table *nls_codepage,
338 int remap_special_chars);
339 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
340 const FILE_BASIC_INFO *data, __u16 fid,
341 __u32 pid_of_opener);
342 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
343 struct cifs_tcon *tcon,
344 bool delete_file, __u16 fid,
345 __u32 pid_of_opener);
347 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
348 char *fileName, __u16 dos_attributes,
349 const struct nls_table *nls_codepage);
350 #endif /* possibly unneeded function */
351 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
352 const char *file_name, __u64 size,
353 struct cifs_sb_info *cifs_sb, bool set_allocation);
354 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
355 struct cifsFileInfo *cfile, __u64 size,
356 bool set_allocation);
358 struct cifs_unix_set_info_args {
368 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
369 struct cifs_tcon *tcon,
370 const struct cifs_unix_set_info_args *args,
371 u16 fid, u32 pid_of_opener);
373 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
374 struct cifs_tcon *tcon, const char *file_name,
375 const struct cifs_unix_set_info_args *args,
376 const struct nls_table *nls_codepage,
379 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
380 umode_t mode, struct cifs_tcon *tcon,
381 const char *name, struct cifs_sb_info *cifs_sb);
382 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
383 const char *name, struct cifs_sb_info *cifs_sb);
384 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
385 const char *name, __u16 type,
386 const struct nls_table *nls_codepage,
387 int remap_special_chars);
388 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
389 const char *name, struct cifs_sb_info *cifs_sb);
390 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
391 const char *from_name, const char *to_name,
392 struct cifs_sb_info *cifs_sb);
393 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
394 int netfid, const char *target_name,
395 const struct nls_table *nls_codepage,
396 int remap_special_chars);
397 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
398 const char *from_name, const char *to_name,
399 struct cifs_sb_info *cifs_sb);
400 extern int CIFSUnixCreateHardLink(const unsigned int xid,
401 struct cifs_tcon *tcon,
402 const char *fromName, const char *toName,
403 const struct nls_table *nls_codepage,
404 int remap_special_chars);
405 extern int CIFSUnixCreateSymLink(const unsigned int xid,
406 struct cifs_tcon *tcon,
407 const char *fromName, const char *toName,
408 const struct nls_table *nls_codepage, int remap);
409 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
410 struct cifs_tcon *tcon,
411 const unsigned char *searchName, char **syminfo,
412 const struct nls_table *nls_codepage, int remap);
413 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
414 __u16 fid, char **symlinkinfo,
415 const struct nls_table *nls_codepage);
416 extern int CIFSSMB_set_compression(const unsigned int xid,
417 struct cifs_tcon *tcon, __u16 fid);
418 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
419 int *oplock, FILE_ALL_INFO *buf);
420 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
421 const char *fileName, const int disposition,
422 const int access_flags, const int omode,
423 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
424 const struct nls_table *nls_codepage, int remap);
425 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
426 u32 posix_flags, __u64 mode, __u16 *netfid,
427 FILE_UNIX_BASIC_INFO *pRetData,
428 __u32 *pOplock, const char *name,
429 const struct nls_table *nls_codepage, int remap);
430 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
431 const int smb_file_id);
433 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
434 const int smb_file_id);
436 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
437 unsigned int *nbytes, char **buf,
438 int *return_buf_type);
439 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
440 unsigned int *nbytes, const char *buf);
441 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
442 unsigned int *nbytes, struct kvec *iov, const int nvec);
443 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
444 const char *search_name, __u64 *inode_number,
445 const struct nls_table *nls_codepage,
448 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
449 const __u16 netfid, const __u8 lock_type,
450 const __u32 num_unlock, const __u32 num_lock,
451 LOCKING_ANDX_RANGE *buf);
452 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
453 const __u16 netfid, const __u32 netpid, const __u64 len,
454 const __u64 offset, const __u32 numUnlock,
455 const __u32 numLock, const __u8 lockType,
456 const bool waitFlag, const __u8 oplock_level);
457 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
458 const __u16 smb_file_id, const __u32 netpid,
459 const loff_t start_offset, const __u64 len,
460 struct file_lock *, const __u16 lock_type,
461 const bool waitFlag);
462 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
463 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
464 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
466 extern struct cifs_ses *sesInfoAlloc(void);
467 extern void sesInfoFree(struct cifs_ses *);
468 extern struct cifs_tcon *tconInfoAlloc(void);
469 extern void tconInfoFree(struct cifs_tcon *);
471 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
472 __u32 *pexpected_response_sequence_number);
473 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
475 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
476 extern int cifs_verify_signature(struct smb_rqst *rqst,
477 struct TCP_Server_Info *server,
478 __u32 expected_sequence_number);
479 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
480 const struct nls_table *);
481 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
482 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
483 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
484 extern int calc_seckey(struct cifs_ses *);
485 extern int generate_smb30signingkey(struct cifs_ses *);
486 extern int generate_smb311signingkey(struct cifs_ses *);
488 #ifdef CONFIG_CIFS_WEAK_PW_HASH
489 extern int calc_lanman_hash(const char *password, const char *cryptkey,
490 bool encrypt, char *lnm_session_key);
491 #endif /* CIFS_WEAK_PW_HASH */
492 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
493 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
494 const int notify_subdirs, const __u16 netfid,
495 __u32 filter, struct file *file, int multishot,
496 const struct nls_table *nls_codepage);
497 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
498 extern int CIFSSMBCopy(unsigned int xid,
499 struct cifs_tcon *source_tcon,
500 const char *fromName,
501 const __u16 target_tid,
502 const char *toName, const int flags,
503 const struct nls_table *nls_codepage,
504 int remap_special_chars);
505 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
506 const unsigned char *searchName,
507 const unsigned char *ea_name, char *EAData,
508 size_t bufsize, struct cifs_sb_info *cifs_sb);
509 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
510 const char *fileName, const char *ea_name,
511 const void *ea_value, const __u16 ea_value_len,
512 const struct nls_table *nls_codepage,
513 struct cifs_sb_info *cifs_sb);
514 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
515 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
516 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
517 struct cifs_ntsd *, __u32, int);
518 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
519 const unsigned char *searchName,
520 char *acl_inf, const int buflen, const int acl_type,
521 const struct nls_table *nls_codepage, int remap_special_chars);
522 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
523 const unsigned char *fileName,
524 const char *local_acl, const int buflen, const int acl_type,
525 const struct nls_table *nls_codepage, int remap_special_chars);
526 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
527 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
528 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
529 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
530 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
531 struct cifs_sb_info *cifs_sb,
532 struct cifs_fattr *fattr,
533 const unsigned char *path);
534 extern int mdfour(unsigned char *, unsigned char *, int);
535 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
536 const struct nls_table *codepage);
537 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
541 cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data,
542 const char *devname, bool is_smb3);
544 cifs_cleanup_volume_info_contents(struct smb_vol *volume_info);
546 extern struct TCP_Server_Info *
547 cifs_find_tcp_session(struct smb_vol *vol);
549 extern void cifs_put_smb_ses(struct cifs_ses *ses);
551 extern struct cifs_ses *
552 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info);
554 void cifs_readdata_release(struct kref *refcount);
555 int cifs_async_readv(struct cifs_readdata *rdata);
556 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
558 int cifs_async_writev(struct cifs_writedata *wdata,
559 void (*release)(struct kref *kref));
560 void cifs_writev_complete(struct work_struct *work);
561 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
562 work_func_t complete);
563 struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
564 work_func_t complete);
565 void cifs_writedata_release(struct kref *refcount);
566 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
567 struct cifs_sb_info *cifs_sb,
568 const unsigned char *path, char *pbuf,
569 unsigned int *pbytes_read);
570 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
571 struct cifs_sb_info *cifs_sb,
572 const unsigned char *path, char *pbuf,
573 unsigned int *pbytes_written);
574 int __cifs_calc_signature(struct smb_rqst *rqst,
575 struct TCP_Server_Info *server, char *signature,
576 struct shash_desc *shash);
577 enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
579 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
580 void cifs_aio_ctx_release(struct kref *refcount);
581 int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
582 void smb2_cached_lease_break(struct work_struct *work);
584 int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
585 struct sdesc **sdesc);
586 void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
588 extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
589 unsigned int *len, unsigned int *offset);
590 int cifs_try_adding_channels(struct cifs_ses *ses);
591 int cifs_ses_add_channel(struct cifs_ses *ses,
592 struct cifs_server_iface *iface);
593 bool is_server_using_iface(struct TCP_Server_Info *server,
594 struct cifs_server_iface *iface);
595 bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
597 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
598 int copy_path_name(char *dst, const char *src);
600 #ifdef CONFIG_CIFS_DFS_UPCALL
601 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
602 const char *old_path,
603 const struct nls_table *nls_codepage,
604 struct dfs_info3_param *referral, int remap)
606 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
611 #endif /* _CIFSPROTO_H */