4 * Copyright (c) International Business Machines Corp., 2002,2008
5 * Author(s): Steve French (sfrench@us.ibm.com)
7 * This library is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published
9 * by the Free Software Foundation; either version 2.1 of the License, or
10 * (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
15 * the GNU Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include <linux/nls.h>
29 *****************************************************************
31 *****************************************************************
34 extern struct smb_hdr *cifs_buf_get(void);
35 extern void cifs_buf_release(void *);
36 extern struct smb_hdr *cifs_small_buf_get(void);
37 extern void cifs_small_buf_release(void *);
38 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
39 unsigned int /* length */);
40 extern unsigned int _get_xid(void);
41 extern void _free_xid(unsigned int);
44 unsigned int __xid = _get_xid(); \
45 cFYI(1, "CIFS VFS: in %s as Xid: %u with uid: %d", \
46 __func__, __xid, current_fsuid()); \
50 #define free_xid(curr_xid) \
52 _free_xid(curr_xid); \
53 cFYI(1, "CIFS VFS: leaving %s (xid = %u) rc = %d", \
54 __func__, curr_xid, (int)rc); \
56 extern int init_cifs_idmap(void);
57 extern void exit_cifs_idmap(void);
58 extern void cifs_destroy_idmaptrees(void);
59 extern char *build_path_from_dentry(struct dentry *);
60 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
61 extern char *cifs_compose_mount_options(const char *sb_mountdata,
62 const char *fullpath, const struct dfs_info3_param *ref,
64 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
65 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
66 struct TCP_Server_Info *server);
67 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
68 extern void cifs_wake_up_task(struct mid_q_entry *mid);
69 extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
70 unsigned int nvec, mid_receive_t *receive,
71 mid_callback_t *callback, void *cbdata,
73 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
74 struct smb_hdr * /* input */ ,
75 struct smb_hdr * /* out */ ,
76 int * /* bytes returned */ , const int);
77 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
78 char *in_buf, int flags);
79 extern int cifs_setup_request(struct cifs_ses *, struct kvec *, unsigned int,
80 struct mid_q_entry **);
81 extern int cifs_setup_async_request(struct TCP_Server_Info *, struct kvec *,
82 unsigned int, struct mid_q_entry **);
83 extern int cifs_check_receive(struct mid_q_entry *mid,
84 struct TCP_Server_Info *server, bool log_error);
85 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
86 struct kvec *, int /* nvec to send */,
87 int * /* type of buf returned */ , const int flags);
88 extern int SendReceiveBlockingLock(const unsigned int xid,
89 struct cifs_tcon *ptcon,
90 struct smb_hdr *in_buf ,
91 struct smb_hdr *out_buf,
93 extern int cifs_reconnect(struct TCP_Server_Info *server);
94 extern int checkSMB(char *buf, unsigned int length);
95 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
96 extern bool backup_cred(struct cifs_sb_info *);
97 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
98 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
99 unsigned int bytes_written);
100 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
101 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
102 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
103 extern int decode_negTokenInit(unsigned char *security_blob, int length,
104 struct TCP_Server_Info *server);
105 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
106 extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
107 extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
108 const unsigned short int port);
109 extern int map_smb_to_linux_error(char *buf, bool logErr);
110 extern 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 */);
113 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
114 struct cifs_ses *ses,
116 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
117 const struct nls_table *nls_cp);
118 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
119 extern u64 cifs_UnixTimeToNT(struct timespec);
120 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
122 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
124 extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
125 struct file *file, struct tcon_link *tlink,
127 extern int cifs_posix_open(char *full_path, struct inode **inode,
128 struct super_block *sb, int mode,
129 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
131 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
132 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
133 FILE_UNIX_BASIC_INFO *info,
134 struct cifs_sb_info *cifs_sb);
135 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
136 extern struct inode *cifs_iget(struct super_block *sb,
137 struct cifs_fattr *fattr);
139 extern int cifs_get_file_info(struct file *filp);
140 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
141 FILE_ALL_INFO *data, struct super_block *sb,
142 int xid, const __u16 *fid);
143 extern int cifs_get_file_info_unix(struct file *filp);
144 extern int cifs_get_inode_info_unix(struct inode **pinode,
145 const unsigned char *search_path,
146 struct super_block *sb, unsigned int xid);
147 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
148 struct cifs_fattr *fattr, struct inode *inode,
149 const char *path, const __u16 *pfid);
150 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
152 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
153 const char *, u32 *);
154 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
157 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
158 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
159 unsigned int to_read);
160 extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
161 struct kvec *iov_orig, unsigned int nr_segs,
162 unsigned int to_read);
163 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
164 struct cifs_sb_info *cifs_sb);
165 extern int cifs_match_super(struct super_block *, void *);
166 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
167 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
168 const char *devname);
169 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
170 extern void cifs_umount(struct cifs_sb_info *);
171 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
173 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
174 extern void cifs_dfs_release_automount_timer(void);
175 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
176 #define cifs_dfs_release_automount_timer() do { } while (0)
177 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
179 void cifs_proc_init(void);
180 void cifs_proc_clean(void);
182 extern int cifs_negotiate_protocol(const unsigned int xid,
183 struct cifs_ses *ses);
184 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
185 struct nls_table *nls_info);
186 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
188 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
189 const char *tree, struct cifs_tcon *tcon,
190 const struct nls_table *);
192 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
193 const char *searchName, const struct nls_table *nls_codepage,
194 __u16 *searchHandle, __u16 search_flags,
195 struct cifs_search_info *psrch_inf,
196 int map, const char dirsep);
198 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
199 __u16 searchHandle, __u16 search_flags,
200 struct cifs_search_info *psrch_inf);
202 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
203 const __u16 search_handle);
205 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
206 u16 netfid, FILE_ALL_INFO *pFindData);
207 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
208 const char *search_Name, FILE_ALL_INFO *data,
209 int legacy /* whether to use old info level */,
210 const struct nls_table *nls_codepage, int remap);
211 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
212 const char *search_name, FILE_ALL_INFO *data,
213 const struct nls_table *nls_codepage, int remap);
215 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
216 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
217 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
218 struct cifs_tcon *tcon,
219 const unsigned char *searchName,
220 FILE_UNIX_BASIC_INFO *pFindData,
221 const struct nls_table *nls_codepage, int remap);
223 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
224 const char *search_name,
225 struct dfs_info3_param **target_nodes,
226 unsigned int *num_of_nodes,
227 const struct nls_table *nls_codepage, int remap);
229 extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
230 const char *old_path,
231 const struct nls_table *nls_codepage,
232 unsigned int *num_referrals,
233 struct dfs_info3_param **referrals, int remap);
234 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
235 struct cifs_sb_info *cifs_sb,
236 struct smb_vol *vol);
237 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
238 struct kstatfs *FSData);
239 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
240 struct kstatfs *FSData);
241 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
244 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
245 struct cifs_tcon *tcon);
246 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
247 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
248 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
249 struct kstatfs *FSData);
251 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
252 const char *fileName, const FILE_BASIC_INFO *data,
253 const struct nls_table *nls_codepage,
254 int remap_special_chars);
255 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
256 const FILE_BASIC_INFO *data, __u16 fid,
257 __u32 pid_of_opener);
258 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
259 struct cifs_tcon *tcon,
260 bool delete_file, __u16 fid,
261 __u32 pid_of_opener);
263 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
264 char *fileName, __u16 dos_attributes,
265 const struct nls_table *nls_codepage);
266 #endif /* possibly unneeded function */
267 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
268 const char *fileName, __u64 size,
269 bool setAllocationSizeFlag,
270 const struct nls_table *nls_codepage,
271 int remap_special_chars);
272 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
273 __u64 size, __u16 fileHandle, __u32 opener_pid,
276 struct cifs_unix_set_info_args {
286 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
287 struct cifs_tcon *tcon,
288 const struct cifs_unix_set_info_args *args,
289 u16 fid, u32 pid_of_opener);
291 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
292 struct cifs_tcon *tcon, const char *file_name,
293 const struct cifs_unix_set_info_args *args,
294 const struct nls_table *nls_codepage,
297 extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
298 const char *name, struct cifs_sb_info *cifs_sb);
299 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
300 const char *name, struct cifs_sb_info *cifs_sb);
301 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
302 const char *name, __u16 type,
303 const struct nls_table *nls_codepage,
304 int remap_special_chars);
305 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
307 const struct nls_table *nls_codepage,
308 int remap_special_chars);
309 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
310 const char *fromName, const char *toName,
311 const struct nls_table *nls_codepage,
312 int remap_special_chars);
313 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
314 int netfid, const char *target_name,
315 const struct nls_table *nls_codepage,
316 int remap_special_chars);
317 extern int CIFSCreateHardLink(const unsigned int xid,
318 struct cifs_tcon *tcon,
319 const char *fromName, const char *toName,
320 const struct nls_table *nls_codepage,
321 int remap_special_chars);
322 extern int CIFSUnixCreateHardLink(const unsigned int xid,
323 struct cifs_tcon *tcon,
324 const char *fromName, const char *toName,
325 const struct nls_table *nls_codepage,
326 int remap_special_chars);
327 extern int CIFSUnixCreateSymLink(const unsigned int xid,
328 struct cifs_tcon *tcon,
329 const char *fromName, const char *toName,
330 const struct nls_table *nls_codepage);
331 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
332 struct cifs_tcon *tcon,
333 const unsigned char *searchName, char **syminfo,
334 const struct nls_table *nls_codepage);
335 #ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
336 extern int CIFSSMBQueryReparseLinkInfo(const unsigned int xid,
337 struct cifs_tcon *tcon,
338 const unsigned char *searchName,
339 char *symlinkinfo, const int buflen, __u16 fid,
340 const struct nls_table *nls_codepage);
341 #endif /* temporarily unused until cifs_symlink fixed */
342 extern int CIFSSMBOpen(const unsigned int xid, struct cifs_tcon *tcon,
343 const char *fileName, const int disposition,
344 const int access_flags, const int omode,
345 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
346 const struct nls_table *nls_codepage, int remap);
347 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
348 const char *fileName, const int disposition,
349 const int access_flags, const int omode,
350 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
351 const struct nls_table *nls_codepage, int remap);
352 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
353 u32 posix_flags, __u64 mode, __u16 *netfid,
354 FILE_UNIX_BASIC_INFO *pRetData,
355 __u32 *pOplock, const char *name,
356 const struct nls_table *nls_codepage, int remap);
357 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
358 const int smb_file_id);
360 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
361 const int smb_file_id);
363 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
364 unsigned int *nbytes, char **buf,
365 int *return_buf_type);
366 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
367 unsigned int *nbytes, const char *buf,
368 const char __user *ubuf, const int long_op);
369 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
370 unsigned int *nbytes, struct kvec *iov, const int nvec,
372 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
373 const char *search_name, __u64 *inode_number,
374 const struct nls_table *nls_codepage,
377 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
378 const __u16 netfid, const __u8 lock_type,
379 const __u32 num_unlock, const __u32 num_lock,
380 LOCKING_ANDX_RANGE *buf);
381 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
382 const __u16 netfid, const __u32 netpid, const __u64 len,
383 const __u64 offset, const __u32 numUnlock,
384 const __u32 numLock, const __u8 lockType,
385 const bool waitFlag, const __u8 oplock_level);
386 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
387 const __u16 smb_file_id, const __u32 netpid,
388 const loff_t start_offset, const __u64 len,
389 struct file_lock *, const __u16 lock_type,
390 const bool waitFlag);
391 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
392 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
393 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
395 extern struct cifs_ses *sesInfoAlloc(void);
396 extern void sesInfoFree(struct cifs_ses *);
397 extern struct cifs_tcon *tconInfoAlloc(void);
398 extern void tconInfoFree(struct cifs_tcon *);
400 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
401 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
403 extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
404 struct TCP_Server_Info *server,
405 __u32 expected_sequence_number);
406 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
407 const struct nls_table *);
408 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
409 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
410 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
411 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
412 extern int calc_seckey(struct cifs_ses *);
414 #ifdef CONFIG_CIFS_WEAK_PW_HASH
415 extern int calc_lanman_hash(const char *password, const char *cryptkey,
416 bool encrypt, char *lnm_session_key);
417 #endif /* CIFS_WEAK_PW_HASH */
418 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
419 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
420 const int notify_subdirs, const __u16 netfid,
421 __u32 filter, struct file *file, int multishot,
422 const struct nls_table *nls_codepage);
423 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
424 extern int CIFSSMBCopy(unsigned int xid,
425 struct cifs_tcon *source_tcon,
426 const char *fromName,
427 const __u16 target_tid,
428 const char *toName, const int flags,
429 const struct nls_table *nls_codepage,
430 int remap_special_chars);
431 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
432 const unsigned char *searchName,
433 const unsigned char *ea_name, char *EAData,
434 size_t bufsize, const struct nls_table *nls_codepage,
435 int remap_special_chars);
436 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
437 const char *fileName, const char *ea_name,
438 const void *ea_value, const __u16 ea_value_len,
439 const struct nls_table *nls_codepage, int remap_special_chars);
440 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
441 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
442 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
443 struct cifs_ntsd *, __u32, int);
444 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
445 const unsigned char *searchName,
446 char *acl_inf, const int buflen, const int acl_type,
447 const struct nls_table *nls_codepage, int remap_special_chars);
448 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
449 const unsigned char *fileName,
450 const char *local_acl, const int buflen, const int acl_type,
451 const struct nls_table *nls_codepage, int remap_special_chars);
452 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
453 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
454 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
455 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
456 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
457 const unsigned char *path,
458 struct cifs_sb_info *cifs_sb, unsigned int xid);
459 extern int mdfour(unsigned char *, unsigned char *, int);
460 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
461 const struct nls_table *codepage);
462 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
465 /* asynchronous read support */
466 struct cifs_readdata {
467 struct kref refcount;
468 struct list_head list;
469 struct completion done;
470 struct cifsFileInfo *cfile;
471 struct address_space *mapping;
476 struct list_head pages;
477 struct work_struct work;
478 int (*marshal_iov) (struct cifs_readdata *rdata,
479 unsigned int remaining);
484 void cifs_readdata_release(struct kref *refcount);
485 int cifs_async_readv(struct cifs_readdata *rdata);
487 /* asynchronous write support */
488 struct cifs_writedata {
489 struct kref refcount;
490 struct list_head list;
491 struct completion done;
492 enum writeback_sync_modes sync_mode;
493 struct work_struct work;
494 struct cifsFileInfo *cfile;
499 void (*marshal_iov) (struct kvec *iov,
500 struct cifs_writedata *wdata);
501 unsigned int nr_pages;
502 struct page *pages[1];
505 int cifs_async_writev(struct cifs_writedata *wdata);
506 void cifs_writev_complete(struct work_struct *work);
507 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
508 work_func_t complete);
509 void cifs_writedata_release(struct kref *refcount);
511 #endif /* _CIFSPROTO_H */