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 renew_parental_timestamps(struct dentry *direntry);*/
82 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
83 struct TCP_Server_Info *server);
84 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
85 extern void cifs_delete_mid(struct mid_q_entry *mid);
86 extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
87 extern void cifs_wake_up_task(struct mid_q_entry *mid);
88 extern int cifs_handle_standard(struct TCP_Server_Info *server,
89 struct mid_q_entry *mid);
90 extern int smb3_parse_devname(const char *devname, struct smb3_fs_context *ctx);
91 extern int smb3_parse_opt(const char *options, const char *key, char **val);
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 int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);
158 extern void header_assemble(struct smb_hdr *, char /* command */ ,
159 const struct cifs_tcon *, int /* length of
160 fixed section (word count) in two byte units */);
161 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
162 struct cifs_ses *ses,
164 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
165 enum securityEnum requested);
166 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
167 struct TCP_Server_Info *server,
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 void cifs_close_deferred_file_under_dentry(struct cifs_tcon *cifs_tcon,
273 extern struct TCP_Server_Info *
274 cifs_get_tcp_session(struct smb3_fs_context *ctx,
275 struct TCP_Server_Info *primary_server);
276 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
278 extern void cifs_put_tcon(struct cifs_tcon *tcon);
280 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
281 extern void cifs_dfs_release_automount_timer(void);
282 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
283 #define cifs_dfs_release_automount_timer() do { } while (0)
284 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
286 void cifs_proc_init(void);
287 void cifs_proc_clean(void);
289 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
290 extern void cifs_free_llist(struct list_head *llist);
291 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
293 extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
294 const struct nls_table *nlsc);
296 extern int cifs_negotiate_protocol(const unsigned int xid,
297 struct cifs_ses *ses,
298 struct TCP_Server_Info *server);
299 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
300 struct TCP_Server_Info *server,
301 struct nls_table *nls_info);
302 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
303 extern int CIFSSMBNegotiate(const unsigned int xid,
304 struct cifs_ses *ses,
305 struct TCP_Server_Info *server);
307 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
308 const char *tree, struct cifs_tcon *tcon,
309 const struct nls_table *);
311 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
312 const char *searchName, struct cifs_sb_info *cifs_sb,
313 __u16 *searchHandle, __u16 search_flags,
314 struct cifs_search_info *psrch_inf,
317 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
318 __u16 searchHandle, __u16 search_flags,
319 struct cifs_search_info *psrch_inf);
321 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
322 const __u16 search_handle);
324 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
325 u16 netfid, FILE_ALL_INFO *pFindData);
326 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
327 const char *search_Name, FILE_ALL_INFO *data,
328 int legacy /* whether to use old info level */,
329 const struct nls_table *nls_codepage, int remap);
330 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
331 const char *search_name, FILE_ALL_INFO *data,
332 const struct nls_table *nls_codepage, int remap);
334 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
335 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
336 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
337 struct cifs_tcon *tcon,
338 const unsigned char *searchName,
339 FILE_UNIX_BASIC_INFO *pFindData,
340 const struct nls_table *nls_codepage, int remap);
342 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
343 const char *search_name,
344 struct dfs_info3_param **target_nodes,
345 unsigned int *num_of_nodes,
346 const struct nls_table *nls_codepage, int remap);
348 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
349 unsigned int *num_of_nodes,
350 struct dfs_info3_param **target_nodes,
351 const struct nls_table *nls_codepage, int remap,
352 const char *searchName, bool is_unicode);
353 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
354 struct cifs_sb_info *cifs_sb,
355 struct smb3_fs_context *ctx);
356 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
357 struct kstatfs *FSData);
358 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
359 struct kstatfs *FSData);
360 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
363 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
364 struct cifs_tcon *tcon);
365 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
366 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
367 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
368 struct kstatfs *FSData);
370 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
371 const char *fileName, const FILE_BASIC_INFO *data,
372 const struct nls_table *nls_codepage,
373 struct cifs_sb_info *cifs_sb);
374 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
375 const FILE_BASIC_INFO *data, __u16 fid,
376 __u32 pid_of_opener);
377 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
378 struct cifs_tcon *tcon,
379 bool delete_file, __u16 fid,
380 __u32 pid_of_opener);
381 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
382 const char *file_name, __u64 size,
383 struct cifs_sb_info *cifs_sb, bool set_allocation);
384 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
385 struct cifsFileInfo *cfile, __u64 size,
386 bool set_allocation);
388 struct cifs_unix_set_info_args {
398 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
399 struct cifs_tcon *tcon,
400 const struct cifs_unix_set_info_args *args,
401 u16 fid, u32 pid_of_opener);
403 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
404 struct cifs_tcon *tcon, const char *file_name,
405 const struct cifs_unix_set_info_args *args,
406 const struct nls_table *nls_codepage,
409 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
410 umode_t mode, struct cifs_tcon *tcon,
411 const char *name, struct cifs_sb_info *cifs_sb);
412 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
413 const char *name, struct cifs_sb_info *cifs_sb);
414 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
415 const char *name, __u16 type,
416 const struct nls_table *nls_codepage,
417 int remap_special_chars);
418 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
419 const char *name, struct cifs_sb_info *cifs_sb);
420 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
421 const char *from_name, const char *to_name,
422 struct cifs_sb_info *cifs_sb);
423 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
424 int netfid, const char *target_name,
425 const struct nls_table *nls_codepage,
426 int remap_special_chars);
427 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
428 const char *from_name, const char *to_name,
429 struct cifs_sb_info *cifs_sb);
430 extern int CIFSUnixCreateHardLink(const unsigned int xid,
431 struct cifs_tcon *tcon,
432 const char *fromName, const char *toName,
433 const struct nls_table *nls_codepage,
434 int remap_special_chars);
435 extern int CIFSUnixCreateSymLink(const unsigned int xid,
436 struct cifs_tcon *tcon,
437 const char *fromName, const char *toName,
438 const struct nls_table *nls_codepage, int remap);
439 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
440 struct cifs_tcon *tcon,
441 const unsigned char *searchName, char **syminfo,
442 const struct nls_table *nls_codepage, int remap);
443 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
444 __u16 fid, char **symlinkinfo,
445 const struct nls_table *nls_codepage);
446 extern int CIFSSMB_set_compression(const unsigned int xid,
447 struct cifs_tcon *tcon, __u16 fid);
448 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
449 int *oplock, FILE_ALL_INFO *buf);
450 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
451 const char *fileName, const int disposition,
452 const int access_flags, const int omode,
453 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
454 const struct nls_table *nls_codepage, int remap);
455 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
456 u32 posix_flags, __u64 mode, __u16 *netfid,
457 FILE_UNIX_BASIC_INFO *pRetData,
458 __u32 *pOplock, const char *name,
459 const struct nls_table *nls_codepage, int remap);
460 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
461 const int smb_file_id);
463 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
464 const int smb_file_id);
466 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
467 unsigned int *nbytes, char **buf,
468 int *return_buf_type);
469 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
470 unsigned int *nbytes, const char *buf);
471 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
472 unsigned int *nbytes, struct kvec *iov, const int nvec);
473 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
474 const char *search_name, __u64 *inode_number,
475 const struct nls_table *nls_codepage,
478 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
479 const __u16 netfid, const __u8 lock_type,
480 const __u32 num_unlock, const __u32 num_lock,
481 LOCKING_ANDX_RANGE *buf);
482 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
483 const __u16 netfid, const __u32 netpid, const __u64 len,
484 const __u64 offset, const __u32 numUnlock,
485 const __u32 numLock, const __u8 lockType,
486 const bool waitFlag, const __u8 oplock_level);
487 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
488 const __u16 smb_file_id, const __u32 netpid,
489 const loff_t start_offset, const __u64 len,
490 struct file_lock *, const __u16 lock_type,
491 const bool waitFlag);
492 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
493 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
494 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
496 extern struct cifs_ses *sesInfoAlloc(void);
497 extern void sesInfoFree(struct cifs_ses *);
498 extern struct cifs_tcon *tconInfoAlloc(void);
499 extern void tconInfoFree(struct cifs_tcon *);
501 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
502 __u32 *pexpected_response_sequence_number);
503 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
505 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
506 extern int cifs_verify_signature(struct smb_rqst *rqst,
507 struct TCP_Server_Info *server,
508 __u32 expected_sequence_number);
509 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
510 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
511 extern int calc_seckey(struct cifs_ses *);
512 extern int generate_smb30signingkey(struct cifs_ses *ses,
513 struct TCP_Server_Info *server);
514 extern int generate_smb311signingkey(struct cifs_ses *ses,
515 struct TCP_Server_Info *server);
517 extern int CIFSSMBCopy(unsigned int xid,
518 struct cifs_tcon *source_tcon,
519 const char *fromName,
520 const __u16 target_tid,
521 const char *toName, const int flags,
522 const struct nls_table *nls_codepage,
523 int remap_special_chars);
524 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
525 const unsigned char *searchName,
526 const unsigned char *ea_name, char *EAData,
527 size_t bufsize, struct cifs_sb_info *cifs_sb);
528 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
529 const char *fileName, const char *ea_name,
530 const void *ea_value, const __u16 ea_value_len,
531 const struct nls_table *nls_codepage,
532 struct cifs_sb_info *cifs_sb);
533 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
534 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
535 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
536 struct cifs_ntsd *, __u32, int);
537 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
538 const unsigned char *searchName,
539 char *acl_inf, const int buflen, const int acl_type,
540 const struct nls_table *nls_codepage, int remap_special_chars);
541 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
542 const unsigned char *fileName,
543 const char *local_acl, const int buflen, const int acl_type,
544 const struct nls_table *nls_codepage, int remap_special_chars);
545 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
546 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
547 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
548 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
549 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
550 struct cifs_sb_info *cifs_sb,
551 struct cifs_fattr *fattr,
552 const unsigned char *path);
553 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
554 const struct nls_table *codepage);
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);
609 void cifs_ses_mark_for_reconnect(struct cifs_ses *ses);
612 cifs_ses_get_chan_index(struct cifs_ses *ses,
613 struct TCP_Server_Info *server);
615 cifs_chan_set_need_reconnect(struct cifs_ses *ses,
616 struct TCP_Server_Info *server);
618 cifs_chan_clear_need_reconnect(struct cifs_ses *ses,
619 struct TCP_Server_Info *server);
621 cifs_chan_needs_reconnect(struct cifs_ses *ses,
622 struct TCP_Server_Info *server);
624 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
625 int copy_path_name(char *dst, const char *src);
626 int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
628 struct cifs_search_info *srch_inf);
630 struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
631 void cifs_put_tcp_super(struct super_block *sb);
632 int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix);
633 char *extract_hostname(const char *unc);
634 char *extract_sharename(const char *unc);
636 #ifdef CONFIG_CIFS_DFS_UPCALL
637 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
638 const char *old_path,
639 const struct nls_table *nls_codepage,
640 struct dfs_info3_param *referral, int remap)
642 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
646 int match_target_ip(struct TCP_Server_Info *server,
647 const char *share, size_t share_len,
651 static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
653 if (cifs_sb && (backup_cred(cifs_sb)))
654 return options | CREATE_OPEN_BACKUP_INTENT;
659 struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon);
660 void cifs_put_tcon_super(struct super_block *sb);
662 #endif /* _CIFSPROTO_H */