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[CIFS] Allow update of EOF on remote extend of file
[net-next-2.6.git] / fs / cifs / cifsproto.h
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1da177e4
LT		 1/*
2 * fs/cifs/cifsproto.h
3 *
5815449d 4 * Copyright (c) International Business Machines Corp., 2002,2006
1da177e4
LT		 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;
26
27/*
28 *****************************************************************
29 * All Prototypes
30 *****************************************************************
31 */
32
33extern struct smb_hdr *cifs_buf_get(void);
34extern void cifs_buf_release(void *);
35extern struct smb_hdr *cifs_small_buf_get(void);
36extern void cifs_small_buf_release(void *);
37extern int smb_send(struct socket *, struct smb_hdr *,
38 unsigned int /* length */ , struct sockaddr *);
39extern unsigned int _GetXid(void);
40extern void _FreeXid(unsigned int);
41#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__FUNCTION__, xid,current->fsuid));
42#define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__FUNCTION__,curr_xid,(int)rc));}
7f57356b 43extern char *build_path_from_dentry(struct dentry *);
1da177e4
LT		 44extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
45extern void renew_parental_timestamps(struct dentry *direntry);
46extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
47 struct smb_hdr * /* input */ ,
48 struct smb_hdr * /* out */ ,
49 int * /* bytes returned */ , const int long_op);
d6e04ae6 50extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
84afc29b 51 struct kvec *, int /* nvec to send */,
ec637e3f 52 int * /* type of buf returned */ , const int long_op);
2cd646a2
SF		 53extern int SendReceiveBlockingLock(const unsigned int /* xid */ ,
54 struct cifsTconInfo *,
7ee1af76
JA		 55 struct smb_hdr * /* input */ ,
56 struct smb_hdr * /* out */ ,
57 int * /* bytes returned */);
d103e164 58extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
d7c8c94d 59extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *);
7ba52631 60extern int is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
6148a742 61extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
1da177e4 62extern unsigned int smbCalcSize(struct smb_hdr *ptr);
70ca734a 63extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
1da177e4
LT		 64extern int decode_negTokenInit(unsigned char *security_blob, int length,
65 enum securityEnum *secType);
66extern int cifs_inet_pton(int, char * source, void *dst);
67extern int map_smb_to_linux_error(struct smb_hdr *smb);
68extern void header_assemble(struct smb_hdr *, char /* command */ ,
1982c344
SF		 69 const struct cifsTconInfo *, int /* length of
70 fixed section (word count) in two byte units */);
5815449d
SF		 71extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
72 struct cifsSesInfo *ses,
12b3b8ff 73 void ** request_buf);
5815449d 74extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
3979877e 75 const int stage,
5815449d 76 const struct nls_table *nls_cp);
1982c344 77extern __u16 GetNextMid(struct TCP_Server_Info *server);
737b758c
SF		 78extern struct oplock_q_entry * AllocOplockQEntry(struct inode *, u16,
79 struct cifsTconInfo *);
1da177e4
LT		 80extern void DeleteOplockQEntry(struct oplock_q_entry *);
81extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
82extern u64 cifs_UnixTimeToNT(struct timespec);
1bd5bbcb
SF		 83extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time);
84extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
85
1da177e4
LT		 86extern int cifs_get_inode_info(struct inode **pinode,
87 const unsigned char *search_path,
88 FILE_ALL_INFO * pfile_info,
89 struct super_block *sb, int xid);
90extern int cifs_get_inode_info_unix(struct inode **pinode,
91 const unsigned char *search_path,
92 struct super_block *sb,int xid);
93
94extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
95 const char *);
96extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
97void cifs_proc_init(void);
98void cifs_proc_clean(void);
99
100extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
101 struct nls_table * nls_info);
102extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses);
103
104extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
105 const char *tree, struct cifsTconInfo *tcon,
106 const struct nls_table *);
107
108extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
ec637e3f
SF		 109 const char *searchName, const struct nls_table *nls_codepage,
110 __u16 *searchHandle, struct cifs_search_info * psrch_inf,
111 int map, const char dirsep);
1da177e4
LT		 112
113extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
ec637e3f 114 __u16 searchHandle, struct cifs_search_info * psrch_inf);
1da177e4
LT		 115
116extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
117 const __u16 search_handle);
118
119extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
120 const unsigned char *searchName,
121 FILE_ALL_INFO * findData,
acf1a1b1 122 int legacy /* whether to use old info level */,
737b758c 123 const struct nls_table *nls_codepage, int remap);
6b8edfe0
SF		 124extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
125 const unsigned char *searchName,
126 FILE_ALL_INFO * findData,
127 const struct nls_table *nls_codepage, int remap);
1da177e4
LT		 128
129extern int CIFSSMBUnixQPathInfo(const int xid,
130 struct cifsTconInfo *tcon,
131 const unsigned char *searchName,
132 FILE_UNIX_BASIC_INFO * pFindData,
737b758c 133 const struct nls_table *nls_codepage, int remap);
1da177e4
LT		 134
135extern int CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
136 const unsigned char *searchName,
137 unsigned char **targetUNCs,
138 unsigned int *number_of_UNC_in_array,
737b758c 139 const struct nls_table *nls_codepage, int remap);
1da177e4
LT		 140
141extern int connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
142 const char *old_path,
737b758c 143 const struct nls_table *nls_codepage, int remap);
1da177e4 144extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
737b758c
SF		 145 const char *old_path,
146 const struct nls_table *nls_codepage,
147 unsigned int *pnum_referrals,
148 unsigned char ** preferrals,
149 int remap);
1da177e4 150extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon,
737b758c 151 struct kstatfs *FSData);
20962438
SF		 152extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon,
153 struct kstatfs *FSData);
45abc6ee 154extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon,
ac67055e
JA		 155 __u64 cap);
156
1da177e4 157extern int CIFSSMBQFSAttributeInfo(const int xid,
737b758c
SF		 158 struct cifsTconInfo *tcon);
159extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon);
160extern int CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon);
1da177e4 161extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
737b758c 162 struct kstatfs *FSData);
1da177e4
LT		 163
164extern int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon,
165 const char *fileName, const FILE_BASIC_INFO * data,
737b758c
SF		 166 const struct nls_table *nls_codepage,
167 int remap_special_chars);
1da177e4
LT		 168extern int CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
169 const FILE_BASIC_INFO * data, __u16 fid);
170#if 0
171extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
172 char *fileName, __u16 dos_attributes,
173 const struct nls_table *nls_codepage);
174#endif /* possibly unneeded function */
175extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon,
737b758c
SF		 176 const char *fileName, __u64 size,
177 int setAllocationSizeFlag,
178 const struct nls_table *nls_codepage,
179 int remap_special_chars);
1da177e4 180extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
737b758c
SF		 181 __u64 size, __u16 fileHandle,__u32 opener_pid,
182 int AllocSizeFlag);
1da177e4
LT		 183extern int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *pTcon,
184 char *full_path, __u64 mode, __u64 uid,
737b758c
SF		 185 __u64 gid, dev_t dev,
186 const struct nls_table *nls_codepage,
187 int remap_special_chars);
1da177e4
LT		 188
189extern int CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon,
190 const char *newName,
737b758c
SF		 191 const struct nls_table *nls_codepage,
192 int remap_special_chars);
1da177e4 193extern int CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon,
737b758c
SF		 194 const char *name, const struct nls_table *nls_codepage,
195 int remap_special_chars);
1da177e4
LT		 196
197extern int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon,
198 const char *name,
737b758c
SF		 199 const struct nls_table *nls_codepage,
200 int remap_special_chars);
1da177e4
LT		 201extern int CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
202 const char *fromName, const char *toName,
737b758c
SF		 203 const struct nls_table *nls_codepage,
204 int remap_special_chars);
1da177e4 205extern int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon,
737b758c
SF		 206 int netfid, char * target_name,
207 const struct nls_table *nls_codepage,
208 int remap_special_chars);
1da177e4
LT		 209extern int CIFSCreateHardLink(const int xid,
210 struct cifsTconInfo *tcon,
211 const char *fromName, const char *toName,
737b758c
SF		 212 const struct nls_table *nls_codepage,
213 int remap_special_chars);
1da177e4
LT		 214extern int CIFSUnixCreateHardLink(const int xid,
215 struct cifsTconInfo *tcon,
216 const char *fromName, const char *toName,
737b758c
SF		 217 const struct nls_table *nls_codepage,
218 int remap_special_chars);
1da177e4
LT		 219extern int CIFSUnixCreateSymLink(const int xid,
220 struct cifsTconInfo *tcon,
221 const char *fromName, const char *toName,
222 const struct nls_table *nls_codepage);
223extern int CIFSSMBUnixQuerySymLink(const int xid,
224 struct cifsTconInfo *tcon,
225 const unsigned char *searchName,
226 char *syminfo, const int buflen,
227 const struct nls_table *nls_codepage);
228extern int CIFSSMBQueryReparseLinkInfo(const int xid,
229 struct cifsTconInfo *tcon,
230 const unsigned char *searchName,
231 char *symlinkinfo, const int buflen, __u16 fid,
232 const struct nls_table *nls_codepage);
233
234extern int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
235 const char *fileName, const int disposition,
236 const int access_flags, const int omode,
237 __u16 * netfid, int *pOplock, FILE_ALL_INFO *,
737b758c 238 const struct nls_table *nls_codepage, int remap);
a9d02ad4
SF		 239extern int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
240 const char *fileName, const int disposition,
241 const int access_flags, const int omode,
242 __u16 * netfid, int *pOplock, FILE_ALL_INFO *,
243 const struct nls_table *nls_codepage, int remap);
1da177e4
LT		 244extern int CIFSSMBClose(const int xid, struct cifsTconInfo *tcon,
245 const int smb_file_id);
246
247extern int CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
ec637e3f
SF		 248 const int netfid, unsigned int count,
249 const __u64 lseek, unsigned int *nbytes, char **buf,
250 int * return_buf_type);
1da177e4
LT		 251extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
252 const int netfid, const unsigned int count,
253 const __u64 lseek, unsigned int *nbytes,
254 const char *buf, const char __user *ubuf,
255 const int long_op);
1da177e4
LT		 256extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
257 const int netfid, const unsigned int count,
258 const __u64 offset, unsigned int *nbytes,
3e84469d 259 struct kvec *iov, const int nvec, const int long_op);
1da177e4
LT		 260extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
261 const unsigned char *searchName, __u64 * inode_number,
737b758c
SF		 262 const struct nls_table *nls_codepage,
263 int remap_special_chars);
b1a45695 264extern int cifs_convertUCSpath(char *target, const __le16 *source, int maxlen,
6a0b4824 265 const struct nls_table * codepage);
737b758c
SF		 266extern int cifsConvertToUCS(__le16 * target, const char *source, int maxlen,
267 const struct nls_table * cp, int mapChars);
1da177e4
LT		 268
269extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
270 const __u16 netfid, const __u64 len,
271 const __u64 offset, const __u32 numUnlock,
272 const __u32 numLock, const __u8 lockType,
273 const int waitFlag);
08547b03
SF		 274extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
275 const __u16 smb_file_id, const int get_flag,
fc94cdb9 276 const __u64 len, struct file_lock *,
08547b03 277 const __u16 lock_type, const int waitFlag);
1da177e4
LT		 278extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon);
279extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses);
280
281extern struct cifsSesInfo *sesInfoAlloc(void);
282extern void sesInfoFree(struct cifsSesInfo *);
283extern struct cifsTconInfo *tconInfoAlloc(void);
284extern void tconInfoFree(struct cifsTconInfo *);
285
ad009ac9 286extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *,__u32 *);
84afc29b
SF		 287extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
288 __u32 *);
1da177e4
LT		 289extern int cifs_verify_signature(struct smb_hdr *, const char * mac_key,
290 __u32 expected_sequence_number);
291extern int cifs_calculate_mac_key(char * key,const char * rn,const char * pass);
1717ffc5
SF		 292extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *,
293 const struct nls_table *);
294extern void CalcNTLMv2_response(const struct cifsSesInfo *, char * );
295extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
296 const struct nls_table *);
7c7b25bc
SF		 297#ifdef CONFIG_CIFS_WEAK_PW_HASH
298extern void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key);
299#endif /* CIFS_WEAK_PW_HASH */
1da177e4
LT		 300extern int CIFSSMBCopy(int xid,
301 struct cifsTconInfo *source_tcon,
302 const char *fromName,
303 const __u16 target_tid,
304 const char *toName, const int flags,
737b758c
SF		 305 const struct nls_table *nls_codepage,
306 int remap_special_chars);
1da177e4 307extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
737b758c 308 const int notify_subdirs,const __u16 netfid,
167a251a
SF		 309 __u32 filter, struct file * file, int multishot,
310 const struct nls_table *nls_codepage);
1da177e4
LT		 311extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
312 const unsigned char *searchName, char * EAData,
737b758c
SF		 313 size_t bufsize, const struct nls_table *nls_codepage,
314 int remap_special_chars);
1da177e4
LT		 315extern ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon,
316 const unsigned char * searchName,const unsigned char * ea_name,
317 unsigned char * ea_value, size_t buf_size,
737b758c 318 const struct nls_table *nls_codepage, int remap_special_chars);
1da177e4
LT		 319extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
320 const char *fileName, const char * ea_name,
321 const void * ea_value, const __u16 ea_value_len,
737b758c 322 const struct nls_table *nls_codepage, int remap_special_chars);
0a4b92c0
SF		 323extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon,
324 __u16 fid, char *acl_inf, const int buflen,
325 const int acl_type /* ACCESS vs. DEFAULT */);
1da177e4
LT		 326extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
327 const unsigned char *searchName,
328 char *acl_inf, const int buflen,const int acl_type,
737b758c 329 const struct nls_table *nls_codepage, int remap_special_chars);
1da177e4
LT		 330extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon,
331 const unsigned char *fileName,
332 const char *local_acl, const int buflen, const int acl_type,
737b758c 333 const struct nls_table *nls_codepage, int remap_special_chars);
f654bac2
SF		 334extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
335 const int netfid, __u64 * pExtAttrBits, __u64 *pMask);
1da177e4 336#endif /* _CIFSPROTO_H */
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