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, "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, "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 bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);
93 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
94 extern int cifs_call_async(struct TCP_Server_Info *server,
95 struct smb_rqst *rqst,
96 mid_receive_t *receive, mid_callback_t *callback,
97 mid_handle_t *handle, void *cbdata, const int flags,
98 const struct cifs_credits *exist_credits);
99 extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);
100 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
101 struct TCP_Server_Info *server,
102 struct smb_rqst *rqst, int *resp_buf_type,
103 const int flags, struct kvec *resp_iov);
104 extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
105 struct TCP_Server_Info *server,
106 const int flags, const int num_rqst,
107 struct smb_rqst *rqst, int *resp_buf_type,
108 struct kvec *resp_iov);
109 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
110 struct smb_hdr * /* input */ ,
111 struct smb_hdr * /* out */ ,
112 int * /* bytes returned */ , const int);
113 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
114 char *in_buf, int flags);
115 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
116 struct TCP_Server_Info *,
118 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
120 extern int cifs_check_receive(struct mid_q_entry *mid,
121 struct TCP_Server_Info *server, bool log_error);
122 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
123 unsigned int size, unsigned int *num,
124 struct cifs_credits *credits);
125 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
126 struct kvec *, int /* nvec to send */,
127 int * /* type of buf returned */, const int flags,
128 struct kvec * /* resp vec */);
129 extern int SendReceiveBlockingLock(const unsigned int xid,
130 struct cifs_tcon *ptcon,
131 struct smb_hdr *in_buf ,
132 struct smb_hdr *out_buf,
133 int *bytes_returned);
134 extern int cifs_reconnect(struct TCP_Server_Info *server);
135 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
136 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
137 extern bool backup_cred(struct cifs_sb_info *);
138 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
139 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
140 unsigned int bytes_written);
141 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
142 extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
144 struct cifsFileInfo **ret_file);
145 extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
147 struct cifsFileInfo **ret_file);
148 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
149 extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
150 struct cifsFileInfo **ret_file);
151 extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
152 extern int decode_negTokenInit(unsigned char *security_blob, int length,
153 struct TCP_Server_Info *server);
154 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
155 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
156 extern int map_smb_to_linux_error(char *buf, bool logErr);
157 extern void header_assemble(struct smb_hdr *, char /* command */ ,
158 const struct cifs_tcon *, int /* length of
159 fixed section (word count) in two byte units */);
160 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
161 struct cifs_ses *ses,
163 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
164 enum securityEnum requested);
165 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
166 const struct nls_table *nls_cp);
167 extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
168 extern u64 cifs_UnixTimeToNT(struct timespec64);
169 extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
171 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
172 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
173 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
174 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
175 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
176 struct file_lock *flock, const unsigned int xid);
177 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
179 extern void cifs_down_write(struct rw_semaphore *sem);
180 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
182 struct tcon_link *tlink,
184 extern int cifs_posix_open(char *full_path, struct inode **inode,
185 struct super_block *sb, int mode,
186 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
188 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
189 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
190 FILE_UNIX_BASIC_INFO *info,
191 struct cifs_sb_info *cifs_sb);
192 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
193 struct cifs_sb_info *);
194 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
195 extern struct inode *cifs_iget(struct super_block *sb,
196 struct cifs_fattr *fattr);
198 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
199 FILE_ALL_INFO *data, struct super_block *sb,
200 int xid, const struct cifs_fid *fid);
201 extern int cifs_get_inode_info_unix(struct inode **pinode,
202 const unsigned char *search_path,
203 struct super_block *sb, unsigned int xid);
204 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
205 unsigned int xid, char *full_path, __u32 dosattr);
206 extern int cifs_rename_pending_delete(const char *full_path,
207 struct dentry *dentry,
208 const unsigned int xid);
209 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
210 struct cifs_fattr *fattr, struct inode *inode,
211 bool get_mode_from_special_sid,
212 const char *path, const struct cifs_fid *pfid);
213 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
215 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
216 const char *, u32 *);
217 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
218 const struct cifs_fid *, u32 *);
219 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
221 extern unsigned int setup_authusers_ACE(struct cifs_ace *pace);
222 extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
224 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
225 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
226 unsigned int to_read);
227 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
229 unsigned int page_offset,
230 unsigned int to_read);
231 extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
232 struct cifs_sb_info *cifs_sb);
233 extern int cifs_match_super(struct super_block *, void *);
234 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
235 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
236 const char *devname, bool is_smb3);
237 extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *vol);
238 extern void cifs_umount(struct cifs_sb_info *);
239 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
240 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
242 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
243 __u64 length, __u8 type, __u16 flags,
244 struct cifsLockInfo **conf_lock,
246 extern void cifs_add_pending_open(struct cifs_fid *fid,
247 struct tcon_link *tlink,
248 struct cifs_pending_open *open);
249 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
250 struct tcon_link *tlink,
251 struct cifs_pending_open *open);
252 extern void cifs_del_pending_open(struct cifs_pending_open *open);
253 extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb_vol *vol);
254 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
256 extern void cifs_put_tcon(struct cifs_tcon *tcon);
258 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
259 extern void cifs_dfs_release_automount_timer(void);
260 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
261 #define cifs_dfs_release_automount_timer() do { } while (0)
262 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
264 void cifs_proc_init(void);
265 void cifs_proc_clean(void);
267 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
268 extern void cifs_free_llist(struct list_head *llist);
269 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
271 extern int cifs_negotiate_protocol(const unsigned int xid,
272 struct cifs_ses *ses);
273 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
274 struct nls_table *nls_info);
275 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
276 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
278 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
279 const char *tree, struct cifs_tcon *tcon,
280 const struct nls_table *);
282 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
283 const char *searchName, struct cifs_sb_info *cifs_sb,
284 __u16 *searchHandle, __u16 search_flags,
285 struct cifs_search_info *psrch_inf,
288 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
289 __u16 searchHandle, __u16 search_flags,
290 struct cifs_search_info *psrch_inf);
292 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
293 const __u16 search_handle);
295 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
296 u16 netfid, FILE_ALL_INFO *pFindData);
297 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
298 const char *search_Name, FILE_ALL_INFO *data,
299 int legacy /* whether to use old info level */,
300 const struct nls_table *nls_codepage, int remap);
301 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
302 const char *search_name, FILE_ALL_INFO *data,
303 const struct nls_table *nls_codepage, int remap);
305 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
306 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
307 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
308 struct cifs_tcon *tcon,
309 const unsigned char *searchName,
310 FILE_UNIX_BASIC_INFO *pFindData,
311 const struct nls_table *nls_codepage, int remap);
313 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
314 const char *search_name,
315 struct dfs_info3_param **target_nodes,
316 unsigned int *num_of_nodes,
317 const struct nls_table *nls_codepage, int remap);
319 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
320 unsigned int *num_of_nodes,
321 struct dfs_info3_param **target_nodes,
322 const struct nls_table *nls_codepage, int remap,
323 const char *searchName, bool is_unicode);
324 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
325 struct cifs_sb_info *cifs_sb,
326 struct smb_vol *vol);
327 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
328 struct kstatfs *FSData);
329 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
330 struct kstatfs *FSData);
331 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
334 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
335 struct cifs_tcon *tcon);
336 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
337 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
338 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
339 struct kstatfs *FSData);
341 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
342 const char *fileName, const FILE_BASIC_INFO *data,
343 const struct nls_table *nls_codepage,
344 int remap_special_chars);
345 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
346 const FILE_BASIC_INFO *data, __u16 fid,
347 __u32 pid_of_opener);
348 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
349 struct cifs_tcon *tcon,
350 bool delete_file, __u16 fid,
351 __u32 pid_of_opener);
353 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
354 char *fileName, __u16 dos_attributes,
355 const struct nls_table *nls_codepage);
356 #endif /* possibly unneeded function */
357 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
358 const char *file_name, __u64 size,
359 struct cifs_sb_info *cifs_sb, bool set_allocation);
360 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
361 struct cifsFileInfo *cfile, __u64 size,
362 bool set_allocation);
364 struct cifs_unix_set_info_args {
374 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
375 struct cifs_tcon *tcon,
376 const struct cifs_unix_set_info_args *args,
377 u16 fid, u32 pid_of_opener);
379 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
380 struct cifs_tcon *tcon, const char *file_name,
381 const struct cifs_unix_set_info_args *args,
382 const struct nls_table *nls_codepage,
385 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
386 umode_t mode, struct cifs_tcon *tcon,
387 const char *name, struct cifs_sb_info *cifs_sb);
388 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
389 const char *name, struct cifs_sb_info *cifs_sb);
390 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
391 const char *name, __u16 type,
392 const struct nls_table *nls_codepage,
393 int remap_special_chars);
394 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
395 const char *name, struct cifs_sb_info *cifs_sb);
396 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
397 const char *from_name, const char *to_name,
398 struct cifs_sb_info *cifs_sb);
399 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
400 int netfid, const char *target_name,
401 const struct nls_table *nls_codepage,
402 int remap_special_chars);
403 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
404 const char *from_name, const char *to_name,
405 struct cifs_sb_info *cifs_sb);
406 extern int CIFSUnixCreateHardLink(const unsigned int xid,
407 struct cifs_tcon *tcon,
408 const char *fromName, const char *toName,
409 const struct nls_table *nls_codepage,
410 int remap_special_chars);
411 extern int CIFSUnixCreateSymLink(const unsigned int xid,
412 struct cifs_tcon *tcon,
413 const char *fromName, const char *toName,
414 const struct nls_table *nls_codepage, int remap);
415 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
416 struct cifs_tcon *tcon,
417 const unsigned char *searchName, char **syminfo,
418 const struct nls_table *nls_codepage, int remap);
419 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
420 __u16 fid, char **symlinkinfo,
421 const struct nls_table *nls_codepage);
422 extern int CIFSSMB_set_compression(const unsigned int xid,
423 struct cifs_tcon *tcon, __u16 fid);
424 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
425 int *oplock, FILE_ALL_INFO *buf);
426 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
427 const char *fileName, const int disposition,
428 const int access_flags, const int omode,
429 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
430 const struct nls_table *nls_codepage, int remap);
431 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
432 u32 posix_flags, __u64 mode, __u16 *netfid,
433 FILE_UNIX_BASIC_INFO *pRetData,
434 __u32 *pOplock, const char *name,
435 const struct nls_table *nls_codepage, int remap);
436 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
437 const int smb_file_id);
439 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
440 const int smb_file_id);
442 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
443 unsigned int *nbytes, char **buf,
444 int *return_buf_type);
445 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
446 unsigned int *nbytes, const char *buf);
447 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
448 unsigned int *nbytes, struct kvec *iov, const int nvec);
449 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
450 const char *search_name, __u64 *inode_number,
451 const struct nls_table *nls_codepage,
454 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
455 const __u16 netfid, const __u8 lock_type,
456 const __u32 num_unlock, const __u32 num_lock,
457 LOCKING_ANDX_RANGE *buf);
458 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
459 const __u16 netfid, const __u32 netpid, const __u64 len,
460 const __u64 offset, const __u32 numUnlock,
461 const __u32 numLock, const __u8 lockType,
462 const bool waitFlag, const __u8 oplock_level);
463 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
464 const __u16 smb_file_id, const __u32 netpid,
465 const loff_t start_offset, const __u64 len,
466 struct file_lock *, const __u16 lock_type,
467 const bool waitFlag);
468 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
469 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
470 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
472 extern struct cifs_ses *sesInfoAlloc(void);
473 extern void sesInfoFree(struct cifs_ses *);
474 extern struct cifs_tcon *tconInfoAlloc(void);
475 extern void tconInfoFree(struct cifs_tcon *);
477 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
478 __u32 *pexpected_response_sequence_number);
479 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
481 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
482 extern int cifs_verify_signature(struct smb_rqst *rqst,
483 struct TCP_Server_Info *server,
484 __u32 expected_sequence_number);
485 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
486 const struct nls_table *);
487 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
488 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
489 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
490 extern int calc_seckey(struct cifs_ses *);
491 extern int generate_smb30signingkey(struct cifs_ses *);
492 extern int generate_smb311signingkey(struct cifs_ses *);
494 #ifdef CONFIG_CIFS_WEAK_PW_HASH
495 extern int calc_lanman_hash(const char *password, const char *cryptkey,
496 bool encrypt, char *lnm_session_key);
497 #endif /* CIFS_WEAK_PW_HASH */
498 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
499 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
500 const int notify_subdirs, const __u16 netfid,
501 __u32 filter, struct file *file, int multishot,
502 const struct nls_table *nls_codepage);
503 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
504 extern int CIFSSMBCopy(unsigned int xid,
505 struct cifs_tcon *source_tcon,
506 const char *fromName,
507 const __u16 target_tid,
508 const char *toName, const int flags,
509 const struct nls_table *nls_codepage,
510 int remap_special_chars);
511 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
512 const unsigned char *searchName,
513 const unsigned char *ea_name, char *EAData,
514 size_t bufsize, struct cifs_sb_info *cifs_sb);
515 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
516 const char *fileName, const char *ea_name,
517 const void *ea_value, const __u16 ea_value_len,
518 const struct nls_table *nls_codepage,
519 struct cifs_sb_info *cifs_sb);
520 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
521 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
522 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
523 struct cifs_ntsd *, __u32, int);
524 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
525 const unsigned char *searchName,
526 char *acl_inf, const int buflen, const int acl_type,
527 const struct nls_table *nls_codepage, int remap_special_chars);
528 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
529 const unsigned char *fileName,
530 const char *local_acl, const int buflen, const int acl_type,
531 const struct nls_table *nls_codepage, int remap_special_chars);
532 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
533 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
534 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
535 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
536 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
537 struct cifs_sb_info *cifs_sb,
538 struct cifs_fattr *fattr,
539 const unsigned char *path);
540 extern int mdfour(unsigned char *, unsigned char *, int);
541 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
542 const struct nls_table *codepage);
543 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
547 cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data,
548 const char *devname, bool is_smb3);
550 cifs_cleanup_volume_info_contents(struct smb_vol *volume_info);
552 extern struct TCP_Server_Info *
553 cifs_find_tcp_session(struct smb_vol *vol);
555 extern void cifs_put_smb_ses(struct cifs_ses *ses);
557 extern struct cifs_ses *
558 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info);
560 void cifs_readdata_release(struct kref *refcount);
561 int cifs_async_readv(struct cifs_readdata *rdata);
562 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
564 int cifs_async_writev(struct cifs_writedata *wdata,
565 void (*release)(struct kref *kref));
566 void cifs_writev_complete(struct work_struct *work);
567 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
568 work_func_t complete);
569 struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
570 work_func_t complete);
571 void cifs_writedata_release(struct kref *refcount);
572 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
573 struct cifs_sb_info *cifs_sb,
574 const unsigned char *path, char *pbuf,
575 unsigned int *pbytes_read);
576 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
577 struct cifs_sb_info *cifs_sb,
578 const unsigned char *path, char *pbuf,
579 unsigned int *pbytes_written);
580 int __cifs_calc_signature(struct smb_rqst *rqst,
581 struct TCP_Server_Info *server, char *signature,
582 struct shash_desc *shash);
583 enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
585 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
586 void cifs_aio_ctx_release(struct kref *refcount);
587 int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
588 void smb2_cached_lease_break(struct work_struct *work);
590 int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
591 struct sdesc **sdesc);
592 void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
594 extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
595 unsigned int *len, unsigned int *offset);
597 cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
598 int cifs_try_adding_channels(struct cifs_ses *ses);
599 int cifs_ses_add_channel(struct cifs_ses *ses,
600 struct cifs_server_iface *iface);
601 bool is_server_using_iface(struct TCP_Server_Info *server,
602 struct cifs_server_iface *iface);
603 bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
605 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
606 int copy_path_name(char *dst, const char *src);
607 int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
609 struct cifs_search_info *srch_inf);
611 struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
612 void cifs_put_tcp_super(struct super_block *sb);
613 int update_super_prepath(struct cifs_tcon *tcon, const char *prefix,
616 #ifdef CONFIG_CIFS_DFS_UPCALL
617 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
618 const char *old_path,
619 const struct nls_table *nls_codepage,
620 struct dfs_info3_param *referral, int remap)
622 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
626 int match_target_ip(struct TCP_Server_Info *server,
627 const char *share, size_t share_len,
631 static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
633 if (cifs_sb && (backup_cred(cifs_sb)))
634 return options | CREATE_OPEN_BACKUP_INTENT;
639 #endif /* _CIFSPROTO_H */