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[CIFS] Return better error when server requires signing but client forbids
[net-next-2.6.git] / fs / cifs / cifsproto.h
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1da177e4
LT		 1/*
2 * fs/cifs/cifsproto.h
3 *
2dd29d31 4 * Copyright (c) International Business Machines Corp., 2002,2007
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
d38d8c74 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
1da177e4
LT		 20 */
21#ifndef _CIFSPROTO_H
22#define _CIFSPROTO_H
23#include <linux/nls.h>
24
25struct statfs;
8af18971 26struct smb_vol;
1da177e4
LT		 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 socket *, struct smb_hdr *,
39 unsigned int /* length */ , struct sockaddr *);
40extern unsigned int _GetXid(void);
41extern void _FreeXid(unsigned int);
42#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__FUNCTION__, xid,current->fsuid));
43#define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__FUNCTION__,curr_xid,(int)rc));}
7f57356b 44extern char *build_path_from_dentry(struct dentry *);
1da177e4 45extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
99ee4dbd 46/* extern void renew_parental_timestamps(struct dentry *direntry);*/
1da177e4
LT		 47extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
48 struct smb_hdr * /* input */ ,
49 struct smb_hdr * /* out */ ,
50 int * /* bytes returned */ , const int long_op);
d6e04ae6 51extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
d38d8c74 52 struct kvec *, int /* nvec to send */,
ec637e3f 53 int * /* type of buf returned */ , const int long_op);
d38d8c74 54extern int SendReceiveBlockingLock(const unsigned int /* xid */ ,
2cd646a2 55 struct cifsTconInfo *,
7ee1af76
JA		 56 struct smb_hdr * /* input */ ,
57 struct smb_hdr * /* out */ ,
58 int * /* bytes returned */);
d103e164 59extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
d7c8c94d 60extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *);
7ba52631 61extern int is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
6148a742 62extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
1da177e4 63extern unsigned int smbCalcSize(struct smb_hdr *ptr);
70ca734a 64extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
1da177e4
LT		 65extern int decode_negTokenInit(unsigned char *security_blob, int length,
66 enum securityEnum *secType);
d38d8c74 67extern int cifs_inet_pton(int, char *source, void *dst);
1da177e4
LT		 68extern int map_smb_to_linux_error(struct smb_hdr *smb);
69extern void header_assemble(struct smb_hdr *, char /* command */ ,
1982c344
SF		 70 const struct cifsTconInfo *, int /* length of
71 fixed section (word count) in two byte units */);
5815449d
SF		 72extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
73 struct cifsSesInfo *ses,
50c2f753 74 void **request_buf);
5815449d 75extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
d38d8c74 76 const int stage,
5815449d 77 const struct nls_table *nls_cp);
1982c344 78extern __u16 GetNextMid(struct TCP_Server_Info *server);
50c2f753 79extern struct oplock_q_entry *AllocOplockQEntry(struct inode *, u16,
737b758c 80 struct cifsTconInfo *);
1da177e4
LT		 81extern void DeleteOplockQEntry(struct oplock_q_entry *);
82extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
83extern u64 cifs_UnixTimeToNT(struct timespec);
1bd5bbcb
SF		 84extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time);
85extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
86
1da177e4 87extern int cifs_get_inode_info(struct inode **pinode,
d38d8c74 88 const unsigned char *search_path,
1da177e4
LT		 89 FILE_ALL_INFO * pfile_info,
90 struct super_block *sb, int xid);
91extern int cifs_get_inode_info_unix(struct inode **pinode,
92 const unsigned char *search_path,
d38d8c74 93 struct super_block *sb, int xid);
1da177e4
LT		 94
95extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
96 const char *);
97extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
98void cifs_proc_init(void);
99void cifs_proc_clean(void);
100
d38d8c74
SF		 101extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
102 struct nls_table *nls_info);
1da177e4
LT		 103extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses);
104
105extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
106 const char *tree, struct cifsTconInfo *tcon,
107 const struct nls_table *);
108
109extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
ec637e3f 110 const char *searchName, const struct nls_table *nls_codepage,
d38d8c74 111 __u16 *searchHandle, struct cifs_search_info *psrch_inf,
ec637e3f 112 int map, const char dirsep);
1da177e4
LT		 113
114extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
d38d8c74 115 __u16 searchHandle, struct cifs_search_info *psrch_inf);
1da177e4
LT		 116
117extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
118 const __u16 search_handle);
119
120extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
121 const unsigned char *searchName,
122 FILE_ALL_INFO * findData,
acf1a1b1 123 int legacy /* whether to use old info level */,
737b758c 124 const struct nls_table *nls_codepage, int remap);
6b8edfe0 125extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
d38d8c74
SF		 126 const unsigned char *searchName,
127 FILE_ALL_INFO *findData,
128 const struct nls_table *nls_codepage, int remap);
1da177e4
LT		 129
130extern int CIFSSMBUnixQPathInfo(const int xid,
131 struct cifsTconInfo *tcon,
132 const unsigned char *searchName,
133 FILE_UNIX_BASIC_INFO * pFindData,
737b758c 134 const struct nls_table *nls_codepage, int remap);
1da177e4
LT		 135
136extern int CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
137 const unsigned char *searchName,
138 unsigned char **targetUNCs,
139 unsigned int *number_of_UNC_in_array,
737b758c 140 const struct nls_table *nls_codepage, int remap);
1da177e4
LT		 141
142extern int connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
143 const char *old_path,
737b758c 144 const struct nls_table *nls_codepage, int remap);
1da177e4 145extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
d38d8c74 146 const char *old_path,
737b758c 147 const struct nls_table *nls_codepage,
d38d8c74 148 unsigned int *pnum_referrals,
50c2f753 149 unsigned char **preferrals,
737b758c 150 int remap);
8af18971 151extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
d38d8c74 152 struct super_block *sb, struct smb_vol *vol);
1da177e4 153extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon,
737b758c 154 struct kstatfs *FSData);
20962438
SF		 155extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon,
156 struct kstatfs *FSData);
45abc6ee 157extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon,
ac67055e
JA		 158 __u64 cap);
159
1da177e4 160extern int CIFSSMBQFSAttributeInfo(const int xid,
737b758c
SF		 161 struct cifsTconInfo *tcon);
162extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon);
163extern int CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon);
1da177e4 164extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
737b758c 165 struct kstatfs *FSData);
1da177e4
LT		 166
167extern int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon,
168 const char *fileName, const FILE_BASIC_INFO * data,
737b758c
SF		 169 const struct nls_table *nls_codepage,
170 int remap_special_chars);
1da177e4
LT		 171extern int CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
172 const FILE_BASIC_INFO * data, __u16 fid);
173#if 0
174extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
175 char *fileName, __u16 dos_attributes,
176 const struct nls_table *nls_codepage);
177#endif /* possibly unneeded function */
178extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon,
737b758c
SF		 179 const char *fileName, __u64 size,
180 int setAllocationSizeFlag,
181 const struct nls_table *nls_codepage,
182 int remap_special_chars);
1da177e4 183extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
d38d8c74 184 __u64 size, __u16 fileHandle, __u32 opener_pid,
737b758c 185 int AllocSizeFlag);
1da177e4
LT		 186extern int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *pTcon,
187 char *full_path, __u64 mode, __u64 uid,
d38d8c74 188 __u64 gid, dev_t dev,
737b758c
SF		 189 const struct nls_table *nls_codepage,
190 int remap_special_chars);
1da177e4
LT		 191
192extern int CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon,
193 const char *newName,
737b758c
SF		 194 const struct nls_table *nls_codepage,
195 int remap_special_chars);
1da177e4 196extern int CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon,
737b758c
SF		 197 const char *name, const struct nls_table *nls_codepage,
198 int remap_special_chars);
2d785a50
SF		 199extern int CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon,
200 const char *name, __u16 type,
201 const struct nls_table *nls_codepage,
202 int remap_special_chars);
1da177e4
LT		 203extern int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon,
204 const char *name,
737b758c
SF		 205 const struct nls_table *nls_codepage,
206 int remap_special_chars);
1da177e4
LT		 207extern int CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
208 const char *fromName, const char *toName,
737b758c
SF		 209 const struct nls_table *nls_codepage,
210 int remap_special_chars);
d38d8c74
SF		 211extern int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
212 int netfid, char *target_name,
737b758c
SF		 213 const struct nls_table *nls_codepage,
214 int remap_special_chars);
1da177e4
LT		 215extern int CIFSCreateHardLink(const int xid,
216 struct cifsTconInfo *tcon,
217 const char *fromName, const char *toName,
737b758c
SF		 218 const struct nls_table *nls_codepage,
219 int remap_special_chars);
1da177e4
LT		 220extern int CIFSUnixCreateHardLink(const int xid,
221 struct cifsTconInfo *tcon,
222 const char *fromName, const char *toName,
d38d8c74 223 const struct nls_table *nls_codepage,
737b758c 224 int remap_special_chars);
1da177e4
LT		 225extern int CIFSUnixCreateSymLink(const int xid,
226 struct cifsTconInfo *tcon,
227 const char *fromName, const char *toName,
228 const struct nls_table *nls_codepage);
229extern int CIFSSMBUnixQuerySymLink(const int xid,
230 struct cifsTconInfo *tcon,
231 const unsigned char *searchName,
232 char *syminfo, const int buflen,
233 const struct nls_table *nls_codepage);
d38d8c74 234extern int CIFSSMBQueryReparseLinkInfo(const int xid,
1da177e4
LT		 235 struct cifsTconInfo *tcon,
236 const unsigned char *searchName,
237 char *symlinkinfo, const int buflen, __u16 fid,
238 const struct nls_table *nls_codepage);
239
240extern int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
241 const char *fileName, const int disposition,
242 const int access_flags, const int omode,
243 __u16 * netfid, int *pOplock, FILE_ALL_INFO *,
737b758c 244 const struct nls_table *nls_codepage, int remap);
a9d02ad4
SF		 245extern int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
246 const char *fileName, const int disposition,
247 const int access_flags, const int omode,
248 __u16 * netfid, int *pOplock, FILE_ALL_INFO *,
249 const struct nls_table *nls_codepage, int remap);
d38d8c74 250extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon,
2dd29d31
SF		 251 u32 posix_flags, __u64 mode, __u16 * netfid,
252 FILE_UNIX_BASIC_INFO *pRetData,
253 __u32 *pOplock, const char *name,
d38d8c74 254 const struct nls_table *nls_codepage, int remap);
1da177e4
LT		 255extern int CIFSSMBClose(const int xid, struct cifsTconInfo *tcon,
256 const int smb_file_id);
257
258extern int CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
d38d8c74
SF		 259 const int netfid, unsigned int count,
260 const __u64 lseek, unsigned int *nbytes, char **buf,
261 int *return_buf_type);
1da177e4
LT		 262extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
263 const int netfid, const unsigned int count,
264 const __u64 lseek, unsigned int *nbytes,
d38d8c74 265 const char *buf, const char __user *ubuf,
1da177e4 266 const int long_op);
1da177e4
LT		 267extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
268 const int netfid, const unsigned int count,
d38d8c74 269 const __u64 offset, unsigned int *nbytes,
3e84469d 270 struct kvec *iov, const int nvec, const int long_op);
1da177e4
LT		 271extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
272 const unsigned char *searchName, __u64 * inode_number,
d38d8c74 273 const struct nls_table *nls_codepage,
737b758c 274 int remap_special_chars);
b1a45695 275extern int cifs_convertUCSpath(char *target, const __le16 *source, int maxlen,
d38d8c74
SF		 276 const struct nls_table *codepage);
277extern int cifsConvertToUCS(__le16 *target, const char *source, int maxlen,
278 const struct nls_table *cp, int mapChars);
1da177e4
LT		 279
280extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
281 const __u16 netfid, const __u64 len,
282 const __u64 offset, const __u32 numUnlock,
283 const __u32 numLock, const __u8 lockType,
284 const int waitFlag);
08547b03
SF		 285extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
286 const __u16 smb_file_id, const int get_flag,
d38d8c74 287 const __u64 len, struct file_lock *,
08547b03 288 const __u16 lock_type, const int waitFlag);
1da177e4
LT		 289extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon);
290extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses);
291
292extern struct cifsSesInfo *sesInfoAlloc(void);
293extern void sesInfoFree(struct cifsSesInfo *);
294extern struct cifsTconInfo *tconInfoAlloc(void);
295extern void tconInfoFree(struct cifsTconInfo *);
296
d38d8c74 297extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
84afc29b
SF		 298extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
299 __u32 *);
b609f06a
SF		 300extern int cifs_verify_signature(struct smb_hdr *,
301 const struct mac_key *mac_key,
302 __u32 expected_sequence_number);
303extern int cifs_calculate_mac_key(struct mac_key *key, const char *rn,
304 const char *pass);
d38d8c74 305extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *,
1717ffc5 306 const struct nls_table *);
26f57364 307extern void CalcNTLMv2_response(const struct cifsSesInfo *, char *);
d38d8c74 308extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
1717ffc5 309 const struct nls_table *);
7c7b25bc 310#ifdef CONFIG_CIFS_WEAK_PW_HASH
d38d8c74 311extern void calc_lanman_hash(struct cifsSesInfo *ses, char *lnm_session_key);
7c7b25bc 312#endif /* CIFS_WEAK_PW_HASH */
d0d66c44 313extern int parse_sec_desc(struct cifs_ntsd *, int);
1da177e4
LT		 314extern int CIFSSMBCopy(int xid,
315 struct cifsTconInfo *source_tcon,
316 const char *fromName,
317 const __u16 target_tid,
318 const char *toName, const int flags,
50c2f753 319 const struct nls_table *nls_codepage,
737b758c 320 int remap_special_chars);
50c2f753 321extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
d38d8c74
SF		 322 const int notify_subdirs, const __u16 netfid,
323 __u32 filter, struct file *file, int multishot,
167a251a 324 const struct nls_table *nls_codepage);
1da177e4 325extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
d38d8c74 326 const unsigned char *searchName, char *EAData,
737b758c
SF		 327 size_t bufsize, const struct nls_table *nls_codepage,
328 int remap_special_chars);
d38d8c74 329extern ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon,
50c2f753 330 const unsigned char *searchName, const unsigned char *ea_name,
d38d8c74 331 unsigned char *ea_value, size_t buf_size,
737b758c 332 const struct nls_table *nls_codepage, int remap_special_chars);
d38d8c74
SF		 333extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
334 const char *fileName, const char *ea_name,
335 const void *ea_value, const __u16 ea_value_len,
737b758c 336 const struct nls_table *nls_codepage, int remap_special_chars);
0a4b92c0
SF		 337extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon,
338 __u16 fid, char *acl_inf, const int buflen,
339 const int acl_type /* ACCESS vs. DEFAULT */);
1da177e4
LT		 340extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
341 const unsigned char *searchName,
d38d8c74 342 char *acl_inf, const int buflen, const int acl_type,
737b758c 343 const struct nls_table *nls_codepage, int remap_special_chars);
1da177e4
LT		 344extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon,
345 const unsigned char *fileName,
346 const char *local_acl, const int buflen, const int acl_type,
737b758c 347 const struct nls_table *nls_codepage, int remap_special_chars);
f654bac2 348extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
d38d8c74 349 const int netfid, __u64 * pExtAttrBits, __u64 *pMask);
1da177e4 350#endif /* _CIFSPROTO_H */
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