Loading...
Note: File does not exist in v6.13.7.
1/*
2 * fs/cifs/cifsproto.h
3 *
4 * Copyright (c) International Business Machines Corp., 2002,2008
5 * Author(s): Steve French (sfrench@us.ibm.com)
6 *
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.
11 *
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.
16 *
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
20 */
21#ifndef _CIFSPROTO_H
22#define _CIFSPROTO_H
23#include <linux/nls.h>
24#include "trace.h"
25#ifdef CONFIG_CIFS_DFS_UPCALL
26#include "dfs_cache.h"
27#endif
28
29struct statfs;
30struct smb_vol;
31struct smb_rqst;
32
33/*
34 *****************************************************************
35 * All Prototypes
36 *****************************************************************
37 */
38
39extern struct smb_hdr *cifs_buf_get(void);
40extern void cifs_buf_release(void *);
41extern struct smb_hdr *cifs_small_buf_get(void);
42extern void cifs_small_buf_release(void *);
43extern void free_rsp_buf(int, void *);
44extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
45 unsigned int /* length */);
46extern unsigned int _get_xid(void);
47extern void _free_xid(unsigned int);
48#define get_xid() \
49({ \
50 unsigned int __xid = _get_xid(); \
51 cifs_dbg(FYI, "VFS: in %s as Xid: %u with uid: %d\n", \
52 __func__, __xid, \
53 from_kuid(&init_user_ns, current_fsuid())); \
54 trace_smb3_enter(__xid, __func__); \
55 __xid; \
56})
57
58#define free_xid(curr_xid) \
59do { \
60 _free_xid(curr_xid); \
61 cifs_dbg(FYI, "VFS: leaving %s (xid = %u) rc = %d\n", \
62 __func__, curr_xid, (int)rc); \
63 if (rc) \
64 trace_smb3_exit_err(curr_xid, __func__, (int)rc); \
65 else \
66 trace_smb3_exit_done(curr_xid, __func__); \
67} while (0)
68extern int init_cifs_idmap(void);
69extern void exit_cifs_idmap(void);
70extern int init_cifs_spnego(void);
71extern void exit_cifs_spnego(void);
72extern char *build_path_from_dentry(struct dentry *);
73extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
74 bool prefix);
75extern char *cifs_build_path_to_root(struct smb_vol *vol,
76 struct cifs_sb_info *cifs_sb,
77 struct cifs_tcon *tcon,
78 int add_treename);
79extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
80extern char *cifs_compose_mount_options(const char *sb_mountdata,
81 const char *fullpath, const struct dfs_info3_param *ref,
82 char **devname);
83/* extern void renew_parental_timestamps(struct dentry *direntry);*/
84extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
85 struct TCP_Server_Info *server);
86extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
87extern void cifs_delete_mid(struct mid_q_entry *mid);
88extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
89extern void cifs_wake_up_task(struct mid_q_entry *mid);
90extern int cifs_handle_standard(struct TCP_Server_Info *server,
91 struct mid_q_entry *mid);
92extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);
93extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
94extern 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);
99extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);
100extern 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);
104extern 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);
109extern 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);
113extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
114 char *in_buf, int flags);
115extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
116 struct TCP_Server_Info *,
117 struct smb_rqst *);
118extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
119 struct smb_rqst *);
120extern int cifs_check_receive(struct mid_q_entry *mid,
121 struct TCP_Server_Info *server, bool log_error);
122extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
123 unsigned int size, unsigned int *num,
124 struct cifs_credits *credits);
125extern 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 */);
129extern 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);
134extern int cifs_reconnect(struct TCP_Server_Info *server);
135extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
136extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
137extern bool backup_cred(struct cifs_sb_info *);
138extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
139extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
140 unsigned int bytes_written);
141extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
142extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
143 int flags,
144 struct cifsFileInfo **ret_file);
145extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
146 int flags,
147 struct cifsFileInfo **ret_file);
148extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
149extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
150 struct cifsFileInfo **ret_file);
151extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
152extern int decode_negTokenInit(unsigned char *security_blob, int length,
153 struct TCP_Server_Info *server);
154extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
155extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
156extern int map_smb_to_linux_error(char *buf, bool logErr);
157extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);
158extern 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 */);
161extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
162 struct cifs_ses *ses,
163 void **request_buf);
164extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
165 enum securityEnum requested);
166extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
167 const struct nls_table *nls_cp);
168extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
169extern u64 cifs_UnixTimeToNT(struct timespec64);
170extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
171 int offset);
172extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
173extern int cifs_get_writer(struct cifsInodeInfo *cinode);
174extern void cifs_put_writer(struct cifsInodeInfo *cinode);
175extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
176extern int cifs_unlock_range(struct cifsFileInfo *cfile,
177 struct file_lock *flock, const unsigned int xid);
178extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
179
180extern void cifs_down_write(struct rw_semaphore *sem);
181extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
182 struct file *file,
183 struct tcon_link *tlink,
184 __u32 oplock);
185extern int cifs_posix_open(char *full_path, struct inode **inode,
186 struct super_block *sb, int mode,
187 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
188 unsigned int xid);
189void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
190extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
191 FILE_UNIX_BASIC_INFO *info,
192 struct cifs_sb_info *cifs_sb);
193extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
194 struct cifs_sb_info *);
195extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
196extern struct inode *cifs_iget(struct super_block *sb,
197 struct cifs_fattr *fattr);
198
199extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
200 FILE_ALL_INFO *data, struct super_block *sb,
201 int xid, const struct cifs_fid *fid);
202extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path,
203 struct super_block *sb, unsigned int xid);
204extern int cifs_get_inode_info_unix(struct inode **pinode,
205 const unsigned char *search_path,
206 struct super_block *sb, unsigned int xid);
207extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
208 unsigned int xid, char *full_path, __u32 dosattr);
209extern int cifs_rename_pending_delete(const char *full_path,
210 struct dentry *dentry,
211 const unsigned int xid);
212extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
213 struct cifs_fattr *fattr, struct inode *inode,
214 bool get_mode_from_special_sid,
215 const char *path, const struct cifs_fid *pfid);
216extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
217 kuid_t, kgid_t);
218extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
219 const char *, u32 *);
220extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
221 const struct cifs_fid *, u32 *);
222extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
223 const char *, int);
224extern unsigned int setup_authusers_ACE(struct cifs_ace *pace);
225extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
226extern unsigned int setup_special_user_owner_ACE(struct cifs_ace *pace);
227
228extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
229extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
230 unsigned int to_read);
231extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
232 struct page *page,
233 unsigned int page_offset,
234 unsigned int to_read);
235extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
236 struct cifs_sb_info *cifs_sb);
237extern int cifs_match_super(struct super_block *, void *);
238extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
239extern struct smb_vol *cifs_get_volume_info(char *mount_data,
240 const char *devname, bool is_smb3);
241extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *vol);
242extern void cifs_umount(struct cifs_sb_info *);
243extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
244extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
245
246extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
247 __u64 length, __u8 type, __u16 flags,
248 struct cifsLockInfo **conf_lock,
249 int rw_check);
250extern void cifs_add_pending_open(struct cifs_fid *fid,
251 struct tcon_link *tlink,
252 struct cifs_pending_open *open);
253extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
254 struct tcon_link *tlink,
255 struct cifs_pending_open *open);
256extern void cifs_del_pending_open(struct cifs_pending_open *open);
257extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb_vol *vol);
258extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
259 int from_reconnect);
260extern void cifs_put_tcon(struct cifs_tcon *tcon);
261
262#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
263extern void cifs_dfs_release_automount_timer(void);
264#else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
265#define cifs_dfs_release_automount_timer() do { } while (0)
266#endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
267
268void cifs_proc_init(void);
269void cifs_proc_clean(void);
270
271extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
272extern void cifs_free_llist(struct list_head *llist);
273extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
274
275extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
276 const struct nls_table *nlsc);
277
278extern int cifs_negotiate_protocol(const unsigned int xid,
279 struct cifs_ses *ses);
280extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
281 struct nls_table *nls_info);
282extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
283extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
284
285extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
286 const char *tree, struct cifs_tcon *tcon,
287 const struct nls_table *);
288
289extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
290 const char *searchName, struct cifs_sb_info *cifs_sb,
291 __u16 *searchHandle, __u16 search_flags,
292 struct cifs_search_info *psrch_inf,
293 bool msearch);
294
295extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
296 __u16 searchHandle, __u16 search_flags,
297 struct cifs_search_info *psrch_inf);
298
299extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
300 const __u16 search_handle);
301
302extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
303 u16 netfid, FILE_ALL_INFO *pFindData);
304extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
305 const char *search_Name, FILE_ALL_INFO *data,
306 int legacy /* whether to use old info level */,
307 const struct nls_table *nls_codepage, int remap);
308extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
309 const char *search_name, FILE_ALL_INFO *data,
310 const struct nls_table *nls_codepage, int remap);
311
312extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
313 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
314extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
315 struct cifs_tcon *tcon,
316 const unsigned char *searchName,
317 FILE_UNIX_BASIC_INFO *pFindData,
318 const struct nls_table *nls_codepage, int remap);
319
320extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
321 const char *search_name,
322 struct dfs_info3_param **target_nodes,
323 unsigned int *num_of_nodes,
324 const struct nls_table *nls_codepage, int remap);
325
326extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
327 unsigned int *num_of_nodes,
328 struct dfs_info3_param **target_nodes,
329 const struct nls_table *nls_codepage, int remap,
330 const char *searchName, bool is_unicode);
331extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
332 struct cifs_sb_info *cifs_sb,
333 struct smb_vol *vol);
334extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
335 struct kstatfs *FSData);
336extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
337 struct kstatfs *FSData);
338extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
339 __u64 cap);
340
341extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
342 struct cifs_tcon *tcon);
343extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
344extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
345extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
346 struct kstatfs *FSData);
347
348extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
349 const char *fileName, const FILE_BASIC_INFO *data,
350 const struct nls_table *nls_codepage,
351 struct cifs_sb_info *cifs_sb);
352extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
353 const FILE_BASIC_INFO *data, __u16 fid,
354 __u32 pid_of_opener);
355extern int CIFSSMBSetFileDisposition(const unsigned int xid,
356 struct cifs_tcon *tcon,
357 bool delete_file, __u16 fid,
358 __u32 pid_of_opener);
359#if 0
360extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
361 char *fileName, __u16 dos_attributes,
362 const struct nls_table *nls_codepage);
363#endif /* possibly unneeded function */
364extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
365 const char *file_name, __u64 size,
366 struct cifs_sb_info *cifs_sb, bool set_allocation);
367extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
368 struct cifsFileInfo *cfile, __u64 size,
369 bool set_allocation);
370
371struct cifs_unix_set_info_args {
372 __u64 ctime;
373 __u64 atime;
374 __u64 mtime;
375 __u64 mode;
376 kuid_t uid;
377 kgid_t gid;
378 dev_t device;
379};
380
381extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
382 struct cifs_tcon *tcon,
383 const struct cifs_unix_set_info_args *args,
384 u16 fid, u32 pid_of_opener);
385
386extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
387 struct cifs_tcon *tcon, const char *file_name,
388 const struct cifs_unix_set_info_args *args,
389 const struct nls_table *nls_codepage,
390 int remap);
391
392extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
393 umode_t mode, struct cifs_tcon *tcon,
394 const char *name, struct cifs_sb_info *cifs_sb);
395extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
396 const char *name, struct cifs_sb_info *cifs_sb);
397extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
398 const char *name, __u16 type,
399 const struct nls_table *nls_codepage,
400 int remap_special_chars);
401extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
402 const char *name, struct cifs_sb_info *cifs_sb);
403extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
404 const char *from_name, const char *to_name,
405 struct cifs_sb_info *cifs_sb);
406extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
407 int netfid, const char *target_name,
408 const struct nls_table *nls_codepage,
409 int remap_special_chars);
410extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
411 const char *from_name, const char *to_name,
412 struct cifs_sb_info *cifs_sb);
413extern int CIFSUnixCreateHardLink(const unsigned int xid,
414 struct cifs_tcon *tcon,
415 const char *fromName, const char *toName,
416 const struct nls_table *nls_codepage,
417 int remap_special_chars);
418extern int CIFSUnixCreateSymLink(const unsigned int xid,
419 struct cifs_tcon *tcon,
420 const char *fromName, const char *toName,
421 const struct nls_table *nls_codepage, int remap);
422extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
423 struct cifs_tcon *tcon,
424 const unsigned char *searchName, char **syminfo,
425 const struct nls_table *nls_codepage, int remap);
426extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
427 __u16 fid, char **symlinkinfo,
428 const struct nls_table *nls_codepage);
429extern int CIFSSMB_set_compression(const unsigned int xid,
430 struct cifs_tcon *tcon, __u16 fid);
431extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
432 int *oplock, FILE_ALL_INFO *buf);
433extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
434 const char *fileName, const int disposition,
435 const int access_flags, const int omode,
436 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
437 const struct nls_table *nls_codepage, int remap);
438extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
439 u32 posix_flags, __u64 mode, __u16 *netfid,
440 FILE_UNIX_BASIC_INFO *pRetData,
441 __u32 *pOplock, const char *name,
442 const struct nls_table *nls_codepage, int remap);
443extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
444 const int smb_file_id);
445
446extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
447 const int smb_file_id);
448
449extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
450 unsigned int *nbytes, char **buf,
451 int *return_buf_type);
452extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
453 unsigned int *nbytes, const char *buf);
454extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
455 unsigned int *nbytes, struct kvec *iov, const int nvec);
456extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
457 const char *search_name, __u64 *inode_number,
458 const struct nls_table *nls_codepage,
459 int remap);
460
461extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
462 const __u16 netfid, const __u8 lock_type,
463 const __u32 num_unlock, const __u32 num_lock,
464 LOCKING_ANDX_RANGE *buf);
465extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
466 const __u16 netfid, const __u32 netpid, const __u64 len,
467 const __u64 offset, const __u32 numUnlock,
468 const __u32 numLock, const __u8 lockType,
469 const bool waitFlag, const __u8 oplock_level);
470extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
471 const __u16 smb_file_id, const __u32 netpid,
472 const loff_t start_offset, const __u64 len,
473 struct file_lock *, const __u16 lock_type,
474 const bool waitFlag);
475extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
476extern int CIFSSMBEcho(struct TCP_Server_Info *server);
477extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
478
479extern struct cifs_ses *sesInfoAlloc(void);
480extern void sesInfoFree(struct cifs_ses *);
481extern struct cifs_tcon *tconInfoAlloc(void);
482extern void tconInfoFree(struct cifs_tcon *);
483
484extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
485 __u32 *pexpected_response_sequence_number);
486extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
487 __u32 *);
488extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
489extern int cifs_verify_signature(struct smb_rqst *rqst,
490 struct TCP_Server_Info *server,
491 __u32 expected_sequence_number);
492extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
493 const struct nls_table *);
494extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
495extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
496extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
497extern int calc_seckey(struct cifs_ses *);
498extern int generate_smb30signingkey(struct cifs_ses *);
499extern int generate_smb311signingkey(struct cifs_ses *);
500
501#ifdef CONFIG_CIFS_WEAK_PW_HASH
502extern int calc_lanman_hash(const char *password, const char *cryptkey,
503 bool encrypt, char *lnm_session_key);
504#endif /* CIFS_WEAK_PW_HASH */
505#ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
506extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
507 const int notify_subdirs, const __u16 netfid,
508 __u32 filter, struct file *file, int multishot,
509 const struct nls_table *nls_codepage);
510#endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
511extern int CIFSSMBCopy(unsigned int xid,
512 struct cifs_tcon *source_tcon,
513 const char *fromName,
514 const __u16 target_tid,
515 const char *toName, const int flags,
516 const struct nls_table *nls_codepage,
517 int remap_special_chars);
518extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
519 const unsigned char *searchName,
520 const unsigned char *ea_name, char *EAData,
521 size_t bufsize, struct cifs_sb_info *cifs_sb);
522extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
523 const char *fileName, const char *ea_name,
524 const void *ea_value, const __u16 ea_value_len,
525 const struct nls_table *nls_codepage,
526 struct cifs_sb_info *cifs_sb);
527extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
528 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
529extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
530 struct cifs_ntsd *, __u32, int);
531extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
532 const unsigned char *searchName,
533 char *acl_inf, const int buflen, const int acl_type,
534 const struct nls_table *nls_codepage, int remap_special_chars);
535extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
536 const unsigned char *fileName,
537 const char *local_acl, const int buflen, const int acl_type,
538 const struct nls_table *nls_codepage, int remap_special_chars);
539extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
540 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
541extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
542extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
543extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
544 struct cifs_sb_info *cifs_sb,
545 struct cifs_fattr *fattr,
546 const unsigned char *path);
547extern int mdfour(unsigned char *, unsigned char *, int);
548extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
549 const struct nls_table *codepage);
550extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
551 unsigned char *p24);
552
553extern int
554cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data,
555 const char *devname, bool is_smb3);
556extern void
557cifs_cleanup_volume_info_contents(struct smb_vol *volume_info);
558
559extern struct TCP_Server_Info *
560cifs_find_tcp_session(struct smb_vol *vol);
561
562extern void cifs_put_smb_ses(struct cifs_ses *ses);
563
564extern struct cifs_ses *
565cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info);
566
567void cifs_readdata_release(struct kref *refcount);
568int cifs_async_readv(struct cifs_readdata *rdata);
569int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
570
571int cifs_async_writev(struct cifs_writedata *wdata,
572 void (*release)(struct kref *kref));
573void cifs_writev_complete(struct work_struct *work);
574struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
575 work_func_t complete);
576struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
577 work_func_t complete);
578void cifs_writedata_release(struct kref *refcount);
579int 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);
583int 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);
587int __cifs_calc_signature(struct smb_rqst *rqst,
588 struct TCP_Server_Info *server, char *signature,
589 struct shash_desc *shash);
590enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
591 enum securityEnum);
592struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
593void cifs_aio_ctx_release(struct kref *refcount);
594int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
595void smb2_cached_lease_break(struct work_struct *work);
596
597int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
598 struct sdesc **sdesc);
599void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
600
601extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
602 unsigned int *len, unsigned int *offset);
603struct cifs_chan *
604cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
605int cifs_try_adding_channels(struct cifs_ses *ses);
606int cifs_ses_add_channel(struct cifs_ses *ses,
607 struct cifs_server_iface *iface);
608bool is_server_using_iface(struct TCP_Server_Info *server,
609 struct cifs_server_iface *iface);
610bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
611
612void extract_unc_hostname(const char *unc, const char **h, size_t *len);
613int copy_path_name(char *dst, const char *src);
614int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
615 int resp_buftype,
616 struct cifs_search_info *srch_inf);
617
618struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
619void cifs_put_tcp_super(struct super_block *sb);
620int update_super_prepath(struct cifs_tcon *tcon, char *prefix);
621
622#ifdef CONFIG_CIFS_DFS_UPCALL
623static 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)
627{
628 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
629 referral, NULL);
630}
631
632int match_target_ip(struct TCP_Server_Info *server,
633 const char *share, size_t share_len,
634 bool *result);
635#endif
636
637static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
638{
639 if (cifs_sb && (backup_cred(cifs_sb)))
640 return options | CREATE_OPEN_BACKUP_INTENT;
641 else
642 return options;
643}
644
645#endif /* _CIFSPROTO_H */