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192.168.1.100 / T106_DC / 9ed821d7e5d875a3395740a9cc2545671fa429b7 / . / ap / os / linux / linux-3.4.x / fs / cifs / cifsproto.h
blob: 97f5d0371cb29471cf1c40e3240ec13a33ad72b0 [file] [log] [blame]
lh9ed821d2023-04-07 01:36:19 -0700[diff] [blame^]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
25struct statfs;
26struct smb_vol;
27
28/*
29 *****************************************************************
30 * All Prototypes
31 *****************************************************************
32 */
33
34extern struct smb_hdr *cifs_buf_get(void);
35extern void cifs_buf_release(void *);
36extern struct smb_hdr *cifs_small_buf_get(void);
37extern void cifs_small_buf_release(void *);
38extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
39 unsigned int /* length */);
40extern unsigned int _GetXid(void);
41extern void _FreeXid(unsigned int);
42#define GetXid() \
43({ \
44 int __xid = (int)_GetXid(); \
45 cFYI(1, "CIFS VFS: in %s as Xid: %d with uid: %d", \
46 __func__, __xid, current_fsuid()); \
47 __xid; \
48})
49
50#define FreeXid(curr_xid) \
51do { \
52 _FreeXid(curr_xid); \
53 cFYI(1, "CIFS VFS: leaving %s (xid = %d) rc = %d", \
54 __func__, curr_xid, (int)rc); \
55} while (0)
56extern int init_cifs_idmap(void);
57extern void exit_cifs_idmap(void);
58extern void cifs_destroy_idmaptrees(void);
59extern char *build_path_from_dentry(struct dentry *);
60extern char *cifs_build_path_to_root(struct smb_vol *vol,
61 struct cifs_sb_info *cifs_sb,
62 struct cifs_tcon *tcon);
63extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
64extern char *cifs_compose_mount_options(const char *sb_mountdata,
65 const char *fullpath, const struct dfs_info3_param *ref,
66 char **devname);
67/* extern void renew_parental_timestamps(struct dentry *direntry);*/
68extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
69 struct TCP_Server_Info *server);
70extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
71extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
72 unsigned int nvec, mid_receive_t *receive,
73 mid_callback_t *callback, void *cbdata,
74 bool ignore_pend);
75extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
76 struct smb_hdr * /* input */ ,
77 struct smb_hdr * /* out */ ,
78 int * /* bytes returned */ , const int long_op);
79extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
80 char *in_buf, int flags);
81extern int cifs_check_receive(struct mid_q_entry *mid,
82 struct TCP_Server_Info *server, bool log_error);
83extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
84 struct kvec *, int /* nvec to send */,
85 int * /* type of buf returned */ , const int flags);
86extern int SendReceiveBlockingLock(const unsigned int xid,
87 struct cifs_tcon *ptcon,
88 struct smb_hdr *in_buf ,
89 struct smb_hdr *out_buf,
90 int *bytes_returned);
91extern void cifs_add_credits(struct TCP_Server_Info *server,
92 const unsigned int add);
93extern void cifs_set_credits(struct TCP_Server_Info *server, const int val);
94extern int checkSMB(char *buf, unsigned int length);
95extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
96extern bool backup_cred(struct cifs_sb_info *);
97extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
98extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
99 unsigned int bytes_written);
100extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
101extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
102extern unsigned int smbCalcSize(struct smb_hdr *ptr);
103extern int decode_negTokenInit(unsigned char *security_blob, int length,
104 struct TCP_Server_Info *server);
105extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
106extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
107extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
108 const unsigned short int port);
109extern int map_smb_to_linux_error(char *buf, bool logErr);
110extern void header_assemble(struct smb_hdr *, char /* command */ ,
111 const struct cifs_tcon *, int /* length of
112 fixed section (word count) in two byte units */);
113extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
114 struct cifs_ses *ses,
115 void **request_buf);
116extern int CIFS_SessSetup(unsigned int xid, struct cifs_ses *ses,
117 const struct nls_table *nls_cp);
118extern __u64 GetNextMid(struct TCP_Server_Info *server);
119extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
120extern u64 cifs_UnixTimeToNT(struct timespec);
121extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
122 int offset);
123extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
124
125extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
126 struct file *file, struct tcon_link *tlink,
127 __u32 oplock);
128extern int cifs_posix_open(char *full_path, struct inode **pinode,
129 struct super_block *sb,
130 int mode, unsigned int f_flags,
131 __u32 *poplock, __u16 *pnetfid, int xid);
132void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
133extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
134 FILE_UNIX_BASIC_INFO *info,
135 struct cifs_sb_info *cifs_sb);
136extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
137extern struct inode *cifs_iget(struct super_block *sb,
138 struct cifs_fattr *fattr);
139
140extern int cifs_get_file_info(struct file *filp);
141extern int cifs_get_inode_info(struct inode **pinode,
142 const unsigned char *search_path,
143 FILE_ALL_INFO *pfile_info,
144 struct super_block *sb, int xid, const __u16 *pfid);
145extern int cifs_get_file_info_unix(struct file *filp);
146extern int cifs_get_inode_info_unix(struct inode **pinode,
147 const unsigned char *search_path,
148 struct super_block *sb, int xid);
149extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
150 struct cifs_fattr *fattr, struct inode *inode,
151 const char *path, const __u16 *pfid);
152extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
153 uid_t, gid_t);
154extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
155 const char *, u32 *);
156extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
157 const char *, int);
158
159extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
160extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
161 unsigned int to_read);
162extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
163 struct kvec *iov_orig, unsigned int nr_segs,
164 unsigned int to_read);
165extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
166 struct cifs_sb_info *cifs_sb);
167extern int cifs_match_super(struct super_block *, void *);
168extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
169extern struct smb_vol *cifs_get_volume_info(char *mount_data,
170 const char *devname);
171extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
172extern void cifs_umount(struct cifs_sb_info *);
173
174#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
175extern void cifs_dfs_release_automount_timer(void);
176#else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
177#define cifs_dfs_release_automount_timer() do { } while (0)
178#endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
179
180void cifs_proc_init(void);
181void cifs_proc_clean(void);
182
183extern int cifs_negotiate_protocol(unsigned int xid,
184 struct cifs_ses *ses);
185extern int cifs_setup_session(unsigned int xid, struct cifs_ses *ses,
186 struct nls_table *nls_info);
187extern int CIFSSMBNegotiate(unsigned int xid, struct cifs_ses *ses);
188
189extern int CIFSTCon(unsigned int xid, struct cifs_ses *ses,
190 const char *tree, struct cifs_tcon *tcon,
191 const struct nls_table *);
192
193extern int CIFSFindFirst(const int xid, struct cifs_tcon *tcon,
194 const char *searchName, const struct nls_table *nls_codepage,
195 __u16 *searchHandle, __u16 search_flags,
196 struct cifs_search_info *psrch_inf,
197 int map, const char dirsep);
198
199extern int CIFSFindNext(const int xid, struct cifs_tcon *tcon,
200 __u16 searchHandle, __u16 search_flags,
201 struct cifs_search_info *psrch_inf);
202
203extern int CIFSFindClose(const int, struct cifs_tcon *tcon,
204 const __u16 search_handle);
205
206extern int CIFSSMBQFileInfo(const int xid, struct cifs_tcon *tcon,
207 u16 netfid, FILE_ALL_INFO *pFindData);
208extern int CIFSSMBQPathInfo(const int xid, struct cifs_tcon *tcon,
209 const unsigned char *searchName,
210 FILE_ALL_INFO *findData,
211 int legacy /* whether to use old info level */,
212 const struct nls_table *nls_codepage, int remap);
213extern int SMBQueryInformation(const int xid, struct cifs_tcon *tcon,
214 const unsigned char *searchName,
215 FILE_ALL_INFO *findData,
216 const struct nls_table *nls_codepage, int remap);
217
218extern int CIFSSMBUnixQFileInfo(const int xid, struct cifs_tcon *tcon,
219 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
220extern int CIFSSMBUnixQPathInfo(const int xid,
221 struct cifs_tcon *tcon,
222 const unsigned char *searchName,
223 FILE_UNIX_BASIC_INFO *pFindData,
224 const struct nls_table *nls_codepage, int remap);
225
226extern int CIFSGetDFSRefer(const int xid, struct cifs_ses *ses,
227 const unsigned char *searchName,
228 struct dfs_info3_param **target_nodes,
229 unsigned int *number_of_nodes_in_array,
230 const struct nls_table *nls_codepage, int remap);
231
232extern int get_dfs_path(int xid, struct cifs_ses *pSesInfo,
233 const char *old_path,
234 const struct nls_table *nls_codepage,
235 unsigned int *pnum_referrals,
236 struct dfs_info3_param **preferrals,
237 int remap);
238extern void reset_cifs_unix_caps(int xid, struct cifs_tcon *tcon,
239 struct cifs_sb_info *cifs_sb,
240 struct smb_vol *vol);
241extern int CIFSSMBQFSInfo(const int xid, struct cifs_tcon *tcon,
242 struct kstatfs *FSData);
243extern int SMBOldQFSInfo(const int xid, struct cifs_tcon *tcon,
244 struct kstatfs *FSData);
245extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifs_tcon *tcon,
246 __u64 cap);
247
248extern int CIFSSMBQFSAttributeInfo(const int xid,
249 struct cifs_tcon *tcon);
250extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifs_tcon *tcon);
251extern int CIFSSMBQFSUnixInfo(const int xid, struct cifs_tcon *tcon);
252extern int CIFSSMBQFSPosixInfo(const int xid, struct cifs_tcon *tcon,
253 struct kstatfs *FSData);
254
255extern int CIFSSMBSetPathInfo(const int xid, struct cifs_tcon *tcon,
256 const char *fileName, const FILE_BASIC_INFO *data,
257 const struct nls_table *nls_codepage,
258 int remap_special_chars);
259extern int CIFSSMBSetFileInfo(const int xid, struct cifs_tcon *tcon,
260 const FILE_BASIC_INFO *data, __u16 fid,
261 __u32 pid_of_opener);
262extern int CIFSSMBSetFileDisposition(const int xid, struct cifs_tcon *tcon,
263 bool delete_file, __u16 fid, __u32 pid_of_opener);
264#if 0
265extern int CIFSSMBSetAttrLegacy(int xid, struct cifs_tcon *tcon,
266 char *fileName, __u16 dos_attributes,
267 const struct nls_table *nls_codepage);
268#endif /* possibly unneeded function */
269extern int CIFSSMBSetEOF(const int xid, struct cifs_tcon *tcon,
270 const char *fileName, __u64 size,
271 bool setAllocationSizeFlag,
272 const struct nls_table *nls_codepage,
273 int remap_special_chars);
274extern int CIFSSMBSetFileSize(const int xid, struct cifs_tcon *tcon,
275 __u64 size, __u16 fileHandle, __u32 opener_pid,
276 bool AllocSizeFlag);
277
278struct cifs_unix_set_info_args {
279 __u64 ctime;
280 __u64 atime;
281 __u64 mtime;
282 __u64 mode;
283 __u64 uid;
284 __u64 gid;
285 dev_t device;
286};
287
288extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
289 const struct cifs_unix_set_info_args *args,
290 u16 fid, u32 pid_of_opener);
291
292extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifs_tcon *pTcon,
293 char *fileName,
294 const struct cifs_unix_set_info_args *args,
295 const struct nls_table *nls_codepage,
296 int remap_special_chars);
297
298extern int CIFSSMBMkDir(const int xid, struct cifs_tcon *tcon,
299 const char *newName,
300 const struct nls_table *nls_codepage,
301 int remap_special_chars);
302extern int CIFSSMBRmDir(const int xid, struct cifs_tcon *tcon,
303 const char *name, const struct nls_table *nls_codepage,
304 int remap_special_chars);
305extern int CIFSPOSIXDelFile(const int xid, struct cifs_tcon *tcon,
306 const char *name, __u16 type,
307 const struct nls_table *nls_codepage,
308 int remap_special_chars);
309extern int CIFSSMBDelFile(const int xid, struct cifs_tcon *tcon,
310 const char *name,
311 const struct nls_table *nls_codepage,
312 int remap_special_chars);
313extern int CIFSSMBRename(const int xid, struct cifs_tcon *tcon,
314 const char *fromName, const char *toName,
315 const struct nls_table *nls_codepage,
316 int remap_special_chars);
317extern int CIFSSMBRenameOpenFile(const int xid, struct cifs_tcon *pTcon,
318 int netfid, const char *target_name,
319 const struct nls_table *nls_codepage,
320 int remap_special_chars);
321extern int CIFSCreateHardLink(const int xid,
322 struct cifs_tcon *tcon,
323 const char *fromName, const char *toName,
324 const struct nls_table *nls_codepage,
325 int remap_special_chars);
326extern int CIFSUnixCreateHardLink(const int xid,
327 struct cifs_tcon *tcon,
328 const char *fromName, const char *toName,
329 const struct nls_table *nls_codepage,
330 int remap_special_chars);
331extern int CIFSUnixCreateSymLink(const int xid,
332 struct cifs_tcon *tcon,
333 const char *fromName, const char *toName,
334 const struct nls_table *nls_codepage);
335extern int CIFSSMBUnixQuerySymLink(const int xid,
336 struct cifs_tcon *tcon,
337 const unsigned char *searchName, char **syminfo,
338 const struct nls_table *nls_codepage);
339#ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
340extern int CIFSSMBQueryReparseLinkInfo(const int xid,
341 struct cifs_tcon *tcon,
342 const unsigned char *searchName,
343 char *symlinkinfo, const int buflen, __u16 fid,
344 const struct nls_table *nls_codepage);
345#endif /* temporarily unused until cifs_symlink fixed */
346extern int CIFSSMBOpen(const int xid, struct cifs_tcon *tcon,
347 const char *fileName, const int disposition,
348 const int access_flags, const int omode,
349 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
350 const struct nls_table *nls_codepage, int remap);
351extern int SMBLegacyOpen(const int xid, struct cifs_tcon *tcon,
352 const char *fileName, const int disposition,
353 const int access_flags, const int omode,
354 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
355 const struct nls_table *nls_codepage, int remap);
356extern int CIFSPOSIXCreate(const int xid, struct cifs_tcon *tcon,
357 u32 posix_flags, __u64 mode, __u16 *netfid,
358 FILE_UNIX_BASIC_INFO *pRetData,
359 __u32 *pOplock, const char *name,
360 const struct nls_table *nls_codepage, int remap);
361extern int CIFSSMBClose(const int xid, struct cifs_tcon *tcon,
362 const int smb_file_id);
363
364extern int CIFSSMBFlush(const int xid, struct cifs_tcon *tcon,
365 const int smb_file_id);
366
367extern int CIFSSMBRead(const int xid, struct cifs_io_parms *io_parms,
368 unsigned int *nbytes, char **buf,
369 int *return_buf_type);
370extern int CIFSSMBWrite(const int xid, struct cifs_io_parms *io_parms,
371 unsigned int *nbytes, const char *buf,
372 const char __user *ubuf, const int long_op);
373extern int CIFSSMBWrite2(const int xid, struct cifs_io_parms *io_parms,
374 unsigned int *nbytes, struct kvec *iov, const int nvec,
375 const int long_op);
376extern int CIFSGetSrvInodeNumber(const int xid, struct cifs_tcon *tcon,
377 const unsigned char *searchName, __u64 *inode_number,
378 const struct nls_table *nls_codepage,
379 int remap_special_chars);
380
381extern int cifs_lockv(const int xid, struct cifs_tcon *tcon, const __u16 netfid,
382 const __u8 lock_type, const __u32 num_unlock,
383 const __u32 num_lock, LOCKING_ANDX_RANGE *buf);
384extern int CIFSSMBLock(const int xid, struct cifs_tcon *tcon,
385 const __u16 netfid, const __u32 netpid, const __u64 len,
386 const __u64 offset, const __u32 numUnlock,
387 const __u32 numLock, const __u8 lockType,
388 const bool waitFlag, const __u8 oplock_level);
389extern int CIFSSMBPosixLock(const int xid, struct cifs_tcon *tcon,
390 const __u16 smb_file_id, const __u32 netpid,
391 const int get_flag, const __u64 len, struct file_lock *,
392 const __u16 lock_type, const bool waitFlag);
393extern int CIFSSMBTDis(const int xid, struct cifs_tcon *tcon);
394extern int CIFSSMBEcho(struct TCP_Server_Info *server);
395extern int CIFSSMBLogoff(const int xid, struct cifs_ses *ses);
396
397extern struct cifs_ses *sesInfoAlloc(void);
398extern void sesInfoFree(struct cifs_ses *);
399extern struct cifs_tcon *tconInfoAlloc(void);
400extern void tconInfoFree(struct cifs_tcon *);
401
402extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
403extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
404 __u32 *);
405extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
406 struct TCP_Server_Info *server,
407 __u32 expected_sequence_number);
408extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
409 const struct nls_table *);
410extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
411extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
412extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
413extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
414extern int calc_seckey(struct cifs_ses *);
415
416#ifdef CONFIG_CIFS_WEAK_PW_HASH
417extern int calc_lanman_hash(const char *password, const char *cryptkey,
418 bool encrypt, char *lnm_session_key);
419#endif /* CIFS_WEAK_PW_HASH */
420#ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
421extern int CIFSSMBNotify(const int xid, struct cifs_tcon *tcon,
422 const int notify_subdirs, const __u16 netfid,
423 __u32 filter, struct file *file, int multishot,
424 const struct nls_table *nls_codepage);
425#endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
426extern int CIFSSMBCopy(int xid,
427 struct cifs_tcon *source_tcon,
428 const char *fromName,
429 const __u16 target_tid,
430 const char *toName, const int flags,
431 const struct nls_table *nls_codepage,
432 int remap_special_chars);
433extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifs_tcon *tcon,
434 const unsigned char *searchName,
435 const unsigned char *ea_name, char *EAData,
436 size_t bufsize, const struct nls_table *nls_codepage,
437 int remap_special_chars);
438extern int CIFSSMBSetEA(const int xid, struct cifs_tcon *tcon,
439 const char *fileName, const char *ea_name,
440 const void *ea_value, const __u16 ea_value_len,
441 const struct nls_table *nls_codepage, int remap_special_chars);
442extern int CIFSSMBGetCIFSACL(const int xid, struct cifs_tcon *tcon,
443 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
444extern int CIFSSMBSetCIFSACL(const int, struct cifs_tcon *, __u16,
445 struct cifs_ntsd *, __u32, int);
446extern int CIFSSMBGetPosixACL(const int xid, struct cifs_tcon *tcon,
447 const unsigned char *searchName,
448 char *acl_inf, const int buflen, const int acl_type,
449 const struct nls_table *nls_codepage, int remap_special_chars);
450extern int CIFSSMBSetPosixACL(const int xid, struct cifs_tcon *tcon,
451 const unsigned char *fileName,
452 const char *local_acl, const int buflen, const int acl_type,
453 const struct nls_table *nls_codepage, int remap_special_chars);
454extern int CIFSGetExtAttr(const int xid, struct cifs_tcon *tcon,
455 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
456extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
457extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
458extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
459 const unsigned char *path,
460 struct cifs_sb_info *cifs_sb, int xid);
461extern int mdfour(unsigned char *, unsigned char *, int);
462extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
463 const struct nls_table *codepage);
464extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
465 unsigned char *p24);
466
467/* asynchronous read support */
468struct cifs_readdata {
469 struct cifsFileInfo *cfile;
470 struct address_space *mapping;
471 __u64 offset;
472 unsigned int bytes;
473 pid_t pid;
474 int result;
475 struct list_head pages;
476 struct work_struct work;
477 unsigned int nr_iov;
478 struct kvec iov[1];
479};
480
481struct cifs_readdata *cifs_readdata_alloc(unsigned int nr_pages);
482void cifs_readdata_free(struct cifs_readdata *rdata);
483int cifs_async_readv(struct cifs_readdata *rdata);
484
485/* asynchronous write support */
486struct cifs_writedata {
487 struct kref refcount;
488 struct list_head list;
489 struct completion done;
490 enum writeback_sync_modes sync_mode;
491 struct work_struct work;
492 struct cifsFileInfo *cfile;
493 __u64 offset;
494 pid_t pid;
495 unsigned int bytes;
496 int result;
497 void (*marshal_iov) (struct kvec *iov,
498 struct cifs_writedata *wdata);
499 unsigned int nr_pages;
500 struct page *pages[1];
501};
502
503int cifs_async_writev(struct cifs_writedata *wdata);
504void cifs_writev_complete(struct work_struct *work);
505struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
506 work_func_t complete);
507void cifs_writedata_release(struct kref *refcount);
508
509#endif /* _CIFSPROTO_H */