1 /* SPDX-License-Identifier: LGPL-2.1 */
5 * Copyright (c) International Business Machines Corp., 2002,2008
6 * Author(s): Steve French (sfrench@us.ibm.com)
11 #include <linux/nls.h>
13 #ifdef CONFIG_CIFS_DFS_UPCALL
14 #include "dfs_cache.h"
19 struct smb3_fs_context;
22 *****************************************************************
24 *****************************************************************
27 extern struct smb_hdr *cifs_buf_get(void);
28 extern void cifs_buf_release(void *);
29 extern struct smb_hdr *cifs_small_buf_get(void);
30 extern void cifs_small_buf_release(void *);
31 extern void free_rsp_buf(int, void *);
32 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
33 unsigned int /* length */);
34 extern unsigned int _get_xid(void);
35 extern void _free_xid(unsigned int);
38 unsigned int __xid = _get_xid(); \
39 cifs_dbg(FYI, "VFS: in %s as Xid: %u with uid: %d\n", \
41 from_kuid(&init_user_ns, current_fsuid())); \
42 trace_smb3_enter(__xid, __func__); \
46 #define free_xid(curr_xid) \
48 _free_xid(curr_xid); \
49 cifs_dbg(FYI, "VFS: leaving %s (xid = %u) rc = %d\n", \
50 __func__, curr_xid, (int)rc); \
52 trace_smb3_exit_err(curr_xid, __func__, (int)rc); \
54 trace_smb3_exit_done(curr_xid, __func__); \
56 extern int init_cifs_idmap(void);
57 extern void exit_cifs_idmap(void);
58 extern int init_cifs_spnego(void);
59 extern void exit_cifs_spnego(void);
60 extern const char *build_path_from_dentry(struct dentry *, void *);
61 extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
62 void *page, bool prefix);
63 static inline void *alloc_dentry_path(void)
68 static inline void free_dentry_path(void *page)
74 extern char *cifs_build_path_to_root(struct smb3_fs_context *ctx,
75 struct cifs_sb_info *cifs_sb,
76 struct cifs_tcon *tcon,
78 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
79 extern char *cifs_compose_mount_options(const char *sb_mountdata,
80 const char *fullpath, const struct dfs_info3_param *ref,
82 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
83 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
84 struct TCP_Server_Info *server);
85 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
86 extern void cifs_delete_mid(struct mid_q_entry *mid);
87 extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
88 extern void cifs_wake_up_task(struct mid_q_entry *mid);
89 extern int cifs_handle_standard(struct TCP_Server_Info *server,
90 struct mid_q_entry *mid);
91 extern int smb3_parse_devname(const char *devname, struct smb3_fs_context *ctx);
92 extern int smb3_parse_opt(const char *options, const char *key, char **val);
93 extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);
94 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
95 extern int cifs_call_async(struct TCP_Server_Info *server,
96 struct smb_rqst *rqst,
97 mid_receive_t *receive, mid_callback_t *callback,
98 mid_handle_t *handle, void *cbdata, const int flags,
99 const struct cifs_credits *exist_credits);
100 extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);
101 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
102 struct TCP_Server_Info *server,
103 struct smb_rqst *rqst, int *resp_buf_type,
104 const int flags, struct kvec *resp_iov);
105 extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
106 struct TCP_Server_Info *server,
107 const int flags, const int num_rqst,
108 struct smb_rqst *rqst, int *resp_buf_type,
109 struct kvec *resp_iov);
110 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
111 struct smb_hdr * /* input */ ,
112 struct smb_hdr * /* out */ ,
113 int * /* bytes returned */ , const int);
114 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
115 char *in_buf, int flags);
116 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
117 struct TCP_Server_Info *,
119 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
121 extern int cifs_check_receive(struct mid_q_entry *mid,
122 struct TCP_Server_Info *server, bool log_error);
123 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
124 unsigned int size, unsigned int *num,
125 struct cifs_credits *credits);
126 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
127 struct kvec *, int /* nvec to send */,
128 int * /* type of buf returned */, const int flags,
129 struct kvec * /* resp vec */);
130 extern int SendReceiveBlockingLock(const unsigned int xid,
131 struct cifs_tcon *ptcon,
132 struct smb_hdr *in_buf ,
133 struct smb_hdr *out_buf,
134 int *bytes_returned);
135 extern int cifs_reconnect(struct TCP_Server_Info *server);
136 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
137 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
138 extern bool backup_cred(struct cifs_sb_info *);
139 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
140 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
141 unsigned int bytes_written);
142 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
143 extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
145 struct cifsFileInfo **ret_file);
146 extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
148 struct cifsFileInfo **ret_file);
149 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
150 extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
151 struct cifsFileInfo **ret_file);
152 extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
153 extern int decode_negTokenInit(unsigned char *security_blob, int length,
154 struct TCP_Server_Info *server);
155 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
156 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
157 extern int map_smb_to_linux_error(char *buf, bool logErr);
158 extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);
159 extern void header_assemble(struct smb_hdr *, char /* command */ ,
160 const struct cifs_tcon *, int /* length of
161 fixed section (word count) in two byte units */);
162 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
163 struct cifs_ses *ses,
165 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
166 enum securityEnum requested);
167 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
168 const struct nls_table *nls_cp);
169 extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
170 extern u64 cifs_UnixTimeToNT(struct timespec64);
171 extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
173 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
174 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
175 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
176 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
177 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
178 struct file_lock *flock, const unsigned int xid);
179 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
181 extern void cifs_down_write(struct rw_semaphore *sem);
182 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
184 struct tcon_link *tlink,
186 extern int cifs_posix_open(const char *full_path, struct inode **inode,
187 struct super_block *sb, int mode,
188 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
190 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
191 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
192 FILE_UNIX_BASIC_INFO *info,
193 struct cifs_sb_info *cifs_sb);
194 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
195 struct cifs_sb_info *);
196 extern int cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
197 extern struct inode *cifs_iget(struct super_block *sb,
198 struct cifs_fattr *fattr);
200 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
201 FILE_ALL_INFO *data, struct super_block *sb,
202 int xid, const struct cifs_fid *fid);
203 extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path,
204 struct super_block *sb, unsigned int xid);
205 extern int cifs_get_inode_info_unix(struct inode **pinode,
206 const unsigned char *search_path,
207 struct super_block *sb, unsigned int xid);
208 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
209 unsigned int xid, const char *full_path, __u32 dosattr);
210 extern int cifs_rename_pending_delete(const char *full_path,
211 struct dentry *dentry,
212 const unsigned int xid);
213 extern int sid_to_id(struct cifs_sb_info *cifs_sb, struct cifs_sid *psid,
214 struct cifs_fattr *fattr, uint sidtype);
215 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
216 struct cifs_fattr *fattr, struct inode *inode,
217 bool get_mode_from_special_sid,
218 const char *path, const struct cifs_fid *pfid);
219 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,
220 kuid_t uid, kgid_t gid);
221 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
222 const char *, u32 *, u32);
223 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
224 const struct cifs_fid *, u32 *, u32);
225 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
227 extern unsigned int setup_authusers_ACE(struct cifs_ace *pace);
228 extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
229 extern unsigned int setup_special_user_owner_ACE(struct cifs_ace *pace);
231 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
232 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
233 unsigned int to_read);
234 extern ssize_t cifs_discard_from_socket(struct TCP_Server_Info *server,
236 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
238 unsigned int page_offset,
239 unsigned int to_read);
240 extern int cifs_setup_cifs_sb(struct cifs_sb_info *cifs_sb);
241 extern int cifs_match_super(struct super_block *, void *);
242 extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx);
243 extern void cifs_umount(struct cifs_sb_info *);
244 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
245 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
247 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
248 __u64 length, __u8 type, __u16 flags,
249 struct cifsLockInfo **conf_lock,
251 extern void cifs_add_pending_open(struct cifs_fid *fid,
252 struct tcon_link *tlink,
253 struct cifs_pending_open *open);
254 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
255 struct tcon_link *tlink,
256 struct cifs_pending_open *open);
257 extern void cifs_del_pending_open(struct cifs_pending_open *open);
259 extern bool cifs_is_deferred_close(struct cifsFileInfo *cfile,
260 struct cifs_deferred_close **dclose);
262 extern void cifs_add_deferred_close(struct cifsFileInfo *cfile,
263 struct cifs_deferred_close *dclose);
265 extern void cifs_del_deferred_close(struct cifsFileInfo *cfile);
267 extern void cifs_close_deferred_file(struct cifsInodeInfo *cifs_inode);
269 extern void cifs_close_all_deferred_files(struct cifs_tcon *cifs_tcon);
271 extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb3_fs_context *ctx);
272 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
274 extern void cifs_put_tcon(struct cifs_tcon *tcon);
276 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
277 extern void cifs_dfs_release_automount_timer(void);
278 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
279 #define cifs_dfs_release_automount_timer() do { } while (0)
280 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
282 void cifs_proc_init(void);
283 void cifs_proc_clean(void);
285 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
286 extern void cifs_free_llist(struct list_head *llist);
287 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
289 extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
290 const struct nls_table *nlsc);
292 extern int cifs_negotiate_protocol(const unsigned int xid,
293 struct cifs_ses *ses);
294 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
295 struct nls_table *nls_info);
296 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
297 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
299 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
300 const char *tree, struct cifs_tcon *tcon,
301 const struct nls_table *);
303 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
304 const char *searchName, struct cifs_sb_info *cifs_sb,
305 __u16 *searchHandle, __u16 search_flags,
306 struct cifs_search_info *psrch_inf,
309 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
310 __u16 searchHandle, __u16 search_flags,
311 struct cifs_search_info *psrch_inf);
313 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
314 const __u16 search_handle);
316 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
317 u16 netfid, FILE_ALL_INFO *pFindData);
318 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
319 const char *search_Name, FILE_ALL_INFO *data,
320 int legacy /* whether to use old info level */,
321 const struct nls_table *nls_codepage, int remap);
322 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
323 const char *search_name, FILE_ALL_INFO *data,
324 const struct nls_table *nls_codepage, int remap);
326 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
327 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
328 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
329 struct cifs_tcon *tcon,
330 const unsigned char *searchName,
331 FILE_UNIX_BASIC_INFO *pFindData,
332 const struct nls_table *nls_codepage, int remap);
334 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
335 const char *search_name,
336 struct dfs_info3_param **target_nodes,
337 unsigned int *num_of_nodes,
338 const struct nls_table *nls_codepage, int remap);
340 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
341 unsigned int *num_of_nodes,
342 struct dfs_info3_param **target_nodes,
343 const struct nls_table *nls_codepage, int remap,
344 const char *searchName, bool is_unicode);
345 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
346 struct cifs_sb_info *cifs_sb,
347 struct smb3_fs_context *ctx);
348 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
349 struct kstatfs *FSData);
350 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
351 struct kstatfs *FSData);
352 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
355 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
356 struct cifs_tcon *tcon);
357 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
358 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
359 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
360 struct kstatfs *FSData);
362 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
363 const char *fileName, const FILE_BASIC_INFO *data,
364 const struct nls_table *nls_codepage,
365 struct cifs_sb_info *cifs_sb);
366 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
367 const FILE_BASIC_INFO *data, __u16 fid,
368 __u32 pid_of_opener);
369 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
370 struct cifs_tcon *tcon,
371 bool delete_file, __u16 fid,
372 __u32 pid_of_opener);
373 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
374 const char *file_name, __u64 size,
375 struct cifs_sb_info *cifs_sb, bool set_allocation);
376 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
377 struct cifsFileInfo *cfile, __u64 size,
378 bool set_allocation);
380 struct cifs_unix_set_info_args {
390 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
391 struct cifs_tcon *tcon,
392 const struct cifs_unix_set_info_args *args,
393 u16 fid, u32 pid_of_opener);
395 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
396 struct cifs_tcon *tcon, const char *file_name,
397 const struct cifs_unix_set_info_args *args,
398 const struct nls_table *nls_codepage,
401 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
402 umode_t mode, struct cifs_tcon *tcon,
403 const char *name, struct cifs_sb_info *cifs_sb);
404 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
405 const char *name, struct cifs_sb_info *cifs_sb);
406 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
407 const char *name, __u16 type,
408 const struct nls_table *nls_codepage,
409 int remap_special_chars);
410 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
411 const char *name, struct cifs_sb_info *cifs_sb);
412 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
413 const char *from_name, const char *to_name,
414 struct cifs_sb_info *cifs_sb);
415 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
416 int netfid, const char *target_name,
417 const struct nls_table *nls_codepage,
418 int remap_special_chars);
419 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
420 const char *from_name, const char *to_name,
421 struct cifs_sb_info *cifs_sb);
422 extern int CIFSUnixCreateHardLink(const unsigned int xid,
423 struct cifs_tcon *tcon,
424 const char *fromName, const char *toName,
425 const struct nls_table *nls_codepage,
426 int remap_special_chars);
427 extern int CIFSUnixCreateSymLink(const unsigned int xid,
428 struct cifs_tcon *tcon,
429 const char *fromName, const char *toName,
430 const struct nls_table *nls_codepage, int remap);
431 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
432 struct cifs_tcon *tcon,
433 const unsigned char *searchName, char **syminfo,
434 const struct nls_table *nls_codepage, int remap);
435 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
436 __u16 fid, char **symlinkinfo,
437 const struct nls_table *nls_codepage);
438 extern int CIFSSMB_set_compression(const unsigned int xid,
439 struct cifs_tcon *tcon, __u16 fid);
440 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
441 int *oplock, FILE_ALL_INFO *buf);
442 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
443 const char *fileName, const int disposition,
444 const int access_flags, const int omode,
445 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
446 const struct nls_table *nls_codepage, int remap);
447 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
448 u32 posix_flags, __u64 mode, __u16 *netfid,
449 FILE_UNIX_BASIC_INFO *pRetData,
450 __u32 *pOplock, const char *name,
451 const struct nls_table *nls_codepage, int remap);
452 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
453 const int smb_file_id);
455 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
456 const int smb_file_id);
458 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
459 unsigned int *nbytes, char **buf,
460 int *return_buf_type);
461 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
462 unsigned int *nbytes, const char *buf);
463 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
464 unsigned int *nbytes, struct kvec *iov, const int nvec);
465 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
466 const char *search_name, __u64 *inode_number,
467 const struct nls_table *nls_codepage,
470 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
471 const __u16 netfid, const __u8 lock_type,
472 const __u32 num_unlock, const __u32 num_lock,
473 LOCKING_ANDX_RANGE *buf);
474 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
475 const __u16 netfid, const __u32 netpid, const __u64 len,
476 const __u64 offset, const __u32 numUnlock,
477 const __u32 numLock, const __u8 lockType,
478 const bool waitFlag, const __u8 oplock_level);
479 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
480 const __u16 smb_file_id, const __u32 netpid,
481 const loff_t start_offset, const __u64 len,
482 struct file_lock *, const __u16 lock_type,
483 const bool waitFlag);
484 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
485 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
486 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
488 extern struct cifs_ses *sesInfoAlloc(void);
489 extern void sesInfoFree(struct cifs_ses *);
490 extern struct cifs_tcon *tconInfoAlloc(void);
491 extern void tconInfoFree(struct cifs_tcon *);
493 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
494 __u32 *pexpected_response_sequence_number);
495 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
497 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
498 extern int cifs_verify_signature(struct smb_rqst *rqst,
499 struct TCP_Server_Info *server,
500 __u32 expected_sequence_number);
501 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
502 const struct nls_table *);
503 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
504 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
505 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
506 extern int calc_seckey(struct cifs_ses *);
507 extern int generate_smb30signingkey(struct cifs_ses *);
508 extern int generate_smb311signingkey(struct cifs_ses *);
510 #ifdef CONFIG_CIFS_WEAK_PW_HASH
511 extern int calc_lanman_hash(const char *password, const char *cryptkey,
512 bool encrypt, char *lnm_session_key);
513 #endif /* CIFS_WEAK_PW_HASH */
514 extern int CIFSSMBCopy(unsigned int xid,
515 struct cifs_tcon *source_tcon,
516 const char *fromName,
517 const __u16 target_tid,
518 const char *toName, const int flags,
519 const struct nls_table *nls_codepage,
520 int remap_special_chars);
521 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
522 const unsigned char *searchName,
523 const unsigned char *ea_name, char *EAData,
524 size_t bufsize, struct cifs_sb_info *cifs_sb);
525 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
526 const char *fileName, const char *ea_name,
527 const void *ea_value, const __u16 ea_value_len,
528 const struct nls_table *nls_codepage,
529 struct cifs_sb_info *cifs_sb);
530 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
531 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
532 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
533 struct cifs_ntsd *, __u32, int);
534 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
535 const unsigned char *searchName,
536 char *acl_inf, const int buflen, const int acl_type,
537 const struct nls_table *nls_codepage, int remap_special_chars);
538 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
539 const unsigned char *fileName,
540 const char *local_acl, const int buflen, const int acl_type,
541 const struct nls_table *nls_codepage, int remap_special_chars);
542 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
543 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
544 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
545 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
546 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
547 struct cifs_sb_info *cifs_sb,
548 struct cifs_fattr *fattr,
549 const unsigned char *path);
550 extern int mdfour(unsigned char *, unsigned char *, int);
551 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
552 const struct nls_table *codepage);
553 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
557 cifs_setup_volume_info(struct smb3_fs_context *ctx, const char *mntopts, const char *devname);
559 extern struct TCP_Server_Info *
560 cifs_find_tcp_session(struct smb3_fs_context *ctx);
562 extern void cifs_put_smb_ses(struct cifs_ses *ses);
564 extern struct cifs_ses *
565 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx);
567 void cifs_readdata_release(struct kref *refcount);
568 int cifs_async_readv(struct cifs_readdata *rdata);
569 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
571 int cifs_async_writev(struct cifs_writedata *wdata,
572 void (*release)(struct kref *kref));
573 void cifs_writev_complete(struct work_struct *work);
574 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
575 work_func_t complete);
576 struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
577 work_func_t complete);
578 void cifs_writedata_release(struct kref *refcount);
579 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
580 struct cifs_sb_info *cifs_sb,
581 const unsigned char *path, char *pbuf,
582 unsigned int *pbytes_read);
583 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
584 struct cifs_sb_info *cifs_sb,
585 const unsigned char *path, char *pbuf,
586 unsigned int *pbytes_written);
587 int __cifs_calc_signature(struct smb_rqst *rqst,
588 struct TCP_Server_Info *server, char *signature,
589 struct shash_desc *shash);
590 enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
592 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
593 void cifs_aio_ctx_release(struct kref *refcount);
594 int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
595 void smb2_cached_lease_break(struct work_struct *work);
597 int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
598 struct sdesc **sdesc);
599 void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
601 extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
602 unsigned int *len, unsigned int *offset);
604 cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
605 int cifs_try_adding_channels(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses);
606 bool is_server_using_iface(struct TCP_Server_Info *server,
607 struct cifs_server_iface *iface);
608 bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
610 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
611 int copy_path_name(char *dst, const char *src);
612 int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
614 struct cifs_search_info *srch_inf);
616 struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
617 void cifs_put_tcp_super(struct super_block *sb);
618 int update_super_prepath(struct cifs_tcon *tcon, char *prefix);
619 char *extract_hostname(const char *unc);
620 char *extract_sharename(const char *unc);
622 #ifdef CONFIG_CIFS_DFS_UPCALL
623 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
624 const char *old_path,
625 const struct nls_table *nls_codepage,
626 struct dfs_info3_param *referral, int remap)
628 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
632 int match_target_ip(struct TCP_Server_Info *server,
633 const char *share, size_t share_len,
637 static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
639 if (cifs_sb && (backup_cred(cifs_sb)))
640 return options | CREATE_OPEN_BACKUP_INTENT;
645 #endif /* _CIFSPROTO_H */