Btrfs: fix easily get into ENOSPC in mixed case
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / fs / cifs / cifsproto.h
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1 /*
2 * fs/cifs/cifsproto.h
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
21 #ifndef _CIFSPROTO_H
22 #define _CIFSPROTO_H
23 #include <linux/nls.h>
25 struct statfs;
26 struct smb_vol;
29 *****************************************************************
30 * All Prototypes
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 _GetXid(void);
41 extern 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; \
50 #define FreeXid(curr_xid) \
51 do { \
52 _FreeXid(curr_xid); \
53 cFYI(1, "CIFS VFS: leaving %s (xid = %d) rc = %d", \
54 __func__, curr_xid, (int)rc); \
55 } while (0)
56 extern char *build_path_from_dentry(struct dentry *);
57 extern char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb,
58 struct cifsTconInfo *tcon);
59 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
60 extern char *cifs_compose_mount_options(const char *sb_mountdata,
61 const char *fullpath, const struct dfs_info3_param *ref,
62 char **devname);
63 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
64 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
65 struct TCP_Server_Info *server);
66 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
67 extern int cifs_call_async(struct TCP_Server_Info *server,
68 struct smb_hdr *in_buf, mid_callback_t *callback,
69 void *cbdata);
70 extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
71 struct smb_hdr * /* input */ ,
72 struct smb_hdr * /* out */ ,
73 int * /* bytes returned */ , const int long_op);
74 extern int SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
75 struct smb_hdr *in_buf, int flags);
76 extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
77 struct kvec *, int /* nvec to send */,
78 int * /* type of buf returned */ , const int flags);
79 extern int SendReceiveBlockingLock(const unsigned int xid,
80 struct cifsTconInfo *ptcon,
81 struct smb_hdr *in_buf ,
82 struct smb_hdr *out_buf,
83 int *bytes_returned);
84 extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
85 extern bool is_valid_oplock_break(struct smb_hdr *smb,
86 struct TCP_Server_Info *);
87 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
88 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
89 unsigned int bytes_written);
90 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
91 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
92 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
93 extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
94 extern int decode_negTokenInit(unsigned char *security_blob, int length,
95 struct TCP_Server_Info *server);
96 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
97 extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
98 extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
99 const unsigned short int port);
100 extern int map_smb_to_linux_error(struct smb_hdr *smb, int logErr);
101 extern void header_assemble(struct smb_hdr *, char /* command */ ,
102 const struct cifsTconInfo *, int /* length of
103 fixed section (word count) in two byte units */);
104 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
105 struct cifsSesInfo *ses,
106 void **request_buf);
107 extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
108 const struct nls_table *nls_cp);
109 extern __u16 GetNextMid(struct TCP_Server_Info *server);
110 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
111 extern u64 cifs_UnixTimeToNT(struct timespec);
112 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
113 int offset);
114 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
116 extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
117 struct file *file, struct tcon_link *tlink,
118 __u32 oplock);
119 extern int cifs_posix_open(char *full_path, struct inode **pinode,
120 struct super_block *sb,
121 int mode, unsigned int f_flags,
122 __u32 *poplock, __u16 *pnetfid, int xid);
123 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
124 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
125 FILE_UNIX_BASIC_INFO *info,
126 struct cifs_sb_info *cifs_sb);
127 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
128 extern struct inode *cifs_iget(struct super_block *sb,
129 struct cifs_fattr *fattr);
131 extern int cifs_get_file_info(struct file *filp);
132 extern int cifs_get_inode_info(struct inode **pinode,
133 const unsigned char *search_path,
134 FILE_ALL_INFO *pfile_info,
135 struct super_block *sb, int xid, const __u16 *pfid);
136 extern int cifs_get_file_info_unix(struct file *filp);
137 extern int cifs_get_inode_info_unix(struct inode **pinode,
138 const unsigned char *search_path,
139 struct super_block *sb, int xid);
140 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
141 struct cifs_fattr *fattr, struct inode *inode,
142 const char *path, const __u16 *pfid);
143 extern int mode_to_cifs_acl(struct inode *inode, const char *path, __u64);
144 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
145 const char *, u32 *);
147 extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
148 const char *);
149 extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
150 extern void cifs_dfs_release_automount_timer(void);
151 void cifs_proc_init(void);
152 void cifs_proc_clean(void);
154 extern int cifs_negotiate_protocol(unsigned int xid,
155 struct cifsSesInfo *ses);
156 extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *ses,
157 struct nls_table *nls_info);
158 extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses);
160 extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
161 const char *tree, struct cifsTconInfo *tcon,
162 const struct nls_table *);
164 extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
165 const char *searchName, const struct nls_table *nls_codepage,
166 __u16 *searchHandle, struct cifs_search_info *psrch_inf,
167 int map, const char dirsep);
169 extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
170 __u16 searchHandle, struct cifs_search_info *psrch_inf);
172 extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
173 const __u16 search_handle);
175 extern int CIFSSMBQFileInfo(const int xid, struct cifsTconInfo *tcon,
176 u16 netfid, FILE_ALL_INFO *pFindData);
177 extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
178 const unsigned char *searchName,
179 FILE_ALL_INFO *findData,
180 int legacy /* whether to use old info level */,
181 const struct nls_table *nls_codepage, int remap);
182 extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
183 const unsigned char *searchName,
184 FILE_ALL_INFO *findData,
185 const struct nls_table *nls_codepage, int remap);
187 extern int CIFSSMBUnixQFileInfo(const int xid, struct cifsTconInfo *tcon,
188 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
189 extern int CIFSSMBUnixQPathInfo(const int xid,
190 struct cifsTconInfo *tcon,
191 const unsigned char *searchName,
192 FILE_UNIX_BASIC_INFO *pFindData,
193 const struct nls_table *nls_codepage, int remap);
195 extern int CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
196 const unsigned char *searchName,
197 struct dfs_info3_param **target_nodes,
198 unsigned int *number_of_nodes_in_array,
199 const struct nls_table *nls_codepage, int remap);
201 extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
202 const char *old_path,
203 const struct nls_table *nls_codepage,
204 unsigned int *pnum_referrals,
205 struct dfs_info3_param **preferrals,
206 int remap);
207 extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
208 struct super_block *sb, struct smb_vol *vol);
209 extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon,
210 struct kstatfs *FSData);
211 extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon,
212 struct kstatfs *FSData);
213 extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon,
214 __u64 cap);
216 extern int CIFSSMBQFSAttributeInfo(const int xid,
217 struct cifsTconInfo *tcon);
218 extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon);
219 extern int CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon);
220 extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
221 struct kstatfs *FSData);
223 extern int CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
224 const char *fileName, const FILE_BASIC_INFO *data,
225 const struct nls_table *nls_codepage,
226 int remap_special_chars);
227 extern int CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
228 const FILE_BASIC_INFO *data, __u16 fid,
229 __u32 pid_of_opener);
230 extern int CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon,
231 bool delete_file, __u16 fid, __u32 pid_of_opener);
232 #if 0
233 extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
234 char *fileName, __u16 dos_attributes,
235 const struct nls_table *nls_codepage);
236 #endif /* possibly unneeded function */
237 extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon,
238 const char *fileName, __u64 size,
239 bool setAllocationSizeFlag,
240 const struct nls_table *nls_codepage,
241 int remap_special_chars);
242 extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
243 __u64 size, __u16 fileHandle, __u32 opener_pid,
244 bool AllocSizeFlag);
246 struct cifs_unix_set_info_args {
247 __u64 ctime;
248 __u64 atime;
249 __u64 mtime;
250 __u64 mode;
251 __u64 uid;
252 __u64 gid;
253 dev_t device;
256 extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon,
257 const struct cifs_unix_set_info_args *args,
258 u16 fid, u32 pid_of_opener);
260 extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *pTcon,
261 char *fileName,
262 const struct cifs_unix_set_info_args *args,
263 const struct nls_table *nls_codepage,
264 int remap_special_chars);
266 extern int CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon,
267 const char *newName,
268 const struct nls_table *nls_codepage,
269 int remap_special_chars);
270 extern int CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon,
271 const char *name, const struct nls_table *nls_codepage,
272 int remap_special_chars);
273 extern int CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon,
274 const char *name, __u16 type,
275 const struct nls_table *nls_codepage,
276 int remap_special_chars);
277 extern int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon,
278 const char *name,
279 const struct nls_table *nls_codepage,
280 int remap_special_chars);
281 extern int CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
282 const char *fromName, const char *toName,
283 const struct nls_table *nls_codepage,
284 int remap_special_chars);
285 extern int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
286 int netfid, const char *target_name,
287 const struct nls_table *nls_codepage,
288 int remap_special_chars);
289 extern int CIFSCreateHardLink(const int xid,
290 struct cifsTconInfo *tcon,
291 const char *fromName, const char *toName,
292 const struct nls_table *nls_codepage,
293 int remap_special_chars);
294 extern int CIFSUnixCreateHardLink(const int xid,
295 struct cifsTconInfo *tcon,
296 const char *fromName, const char *toName,
297 const struct nls_table *nls_codepage,
298 int remap_special_chars);
299 extern int CIFSUnixCreateSymLink(const int xid,
300 struct cifsTconInfo *tcon,
301 const char *fromName, const char *toName,
302 const struct nls_table *nls_codepage);
303 extern int CIFSSMBUnixQuerySymLink(const int xid,
304 struct cifsTconInfo *tcon,
305 const unsigned char *searchName, char **syminfo,
306 const struct nls_table *nls_codepage);
307 extern int CIFSSMBQueryReparseLinkInfo(const int xid,
308 struct cifsTconInfo *tcon,
309 const unsigned char *searchName,
310 char *symlinkinfo, const int buflen, __u16 fid,
311 const struct nls_table *nls_codepage);
313 extern int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
314 const char *fileName, const int disposition,
315 const int access_flags, const int omode,
316 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
317 const struct nls_table *nls_codepage, int remap);
318 extern int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
319 const char *fileName, const int disposition,
320 const int access_flags, const int omode,
321 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
322 const struct nls_table *nls_codepage, int remap);
323 extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon,
324 u32 posix_flags, __u64 mode, __u16 *netfid,
325 FILE_UNIX_BASIC_INFO *pRetData,
326 __u32 *pOplock, const char *name,
327 const struct nls_table *nls_codepage, int remap);
328 extern int CIFSSMBClose(const int xid, struct cifsTconInfo *tcon,
329 const int smb_file_id);
331 extern int CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon,
332 const int smb_file_id);
334 extern int CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
335 const int netfid, unsigned int count,
336 const __u64 lseek, unsigned int *nbytes, char **buf,
337 int *return_buf_type);
338 extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
339 const int netfid, const unsigned int count,
340 const __u64 lseek, unsigned int *nbytes,
341 const char *buf, const char __user *ubuf,
342 const int long_op);
343 extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
344 const int netfid, const unsigned int count,
345 const __u64 offset, unsigned int *nbytes,
346 struct kvec *iov, const int nvec, const int long_op);
347 extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
348 const unsigned char *searchName, __u64 *inode_number,
349 const struct nls_table *nls_codepage,
350 int remap_special_chars);
351 extern int cifsConvertToUCS(__le16 *target, const char *source, int maxlen,
352 const struct nls_table *cp, int mapChars);
354 extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
355 const __u16 netfid, const __u64 len,
356 const __u64 offset, const __u32 numUnlock,
357 const __u32 numLock, const __u8 lockType,
358 const bool waitFlag, const __u8 oplock_level);
359 extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
360 const __u16 smb_file_id, const int get_flag,
361 const __u64 len, struct file_lock *,
362 const __u16 lock_type, const bool waitFlag);
363 extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon);
364 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
365 extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses);
367 extern struct cifsSesInfo *sesInfoAlloc(void);
368 extern void sesInfoFree(struct cifsSesInfo *);
369 extern struct cifsTconInfo *tconInfoAlloc(void);
370 extern void tconInfoFree(struct cifsTconInfo *);
372 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
373 extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
374 __u32 *);
375 extern int cifs_verify_signature(struct smb_hdr *,
376 struct TCP_Server_Info *server,
377 __u32 expected_sequence_number);
378 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *);
379 extern int setup_ntlm_response(struct cifsSesInfo *);
380 extern int setup_ntlmv2_rsp(struct cifsSesInfo *, const struct nls_table *);
381 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
382 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
383 extern int calc_seckey(struct cifsSesInfo *);
385 #ifdef CONFIG_CIFS_WEAK_PW_HASH
386 extern void calc_lanman_hash(const char *password, const char *cryptkey,
387 bool encrypt, char *lnm_session_key);
388 #endif /* CIFS_WEAK_PW_HASH */
389 extern int CIFSSMBCopy(int xid,
390 struct cifsTconInfo *source_tcon,
391 const char *fromName,
392 const __u16 target_tid,
393 const char *toName, const int flags,
394 const struct nls_table *nls_codepage,
395 int remap_special_chars);
396 extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
397 const int notify_subdirs, const __u16 netfid,
398 __u32 filter, struct file *file, int multishot,
399 const struct nls_table *nls_codepage);
400 extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
401 const unsigned char *searchName,
402 const unsigned char *ea_name, char *EAData,
403 size_t bufsize, const struct nls_table *nls_codepage,
404 int remap_special_chars);
405 extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
406 const char *fileName, const char *ea_name,
407 const void *ea_value, const __u16 ea_value_len,
408 const struct nls_table *nls_codepage, int remap_special_chars);
409 extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon,
410 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
411 extern int CIFSSMBSetCIFSACL(const int, struct cifsTconInfo *, __u16,
412 struct cifs_ntsd *, __u32);
413 extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
414 const unsigned char *searchName,
415 char *acl_inf, const int buflen, const int acl_type,
416 const struct nls_table *nls_codepage, int remap_special_chars);
417 extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon,
418 const unsigned char *fileName,
419 const char *local_acl, const int buflen, const int acl_type,
420 const struct nls_table *nls_codepage, int remap_special_chars);
421 extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
422 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
423 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
424 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
425 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
426 const unsigned char *path,
427 struct cifs_sb_info *cifs_sb, int xid);
428 extern int mdfour(unsigned char *, unsigned char *, int);
429 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16);
430 extern void SMBencrypt(unsigned char *passwd, const unsigned char *c8,
431 unsigned char *p24);
432 extern void E_P16(unsigned char *p14, unsigned char *p16);
433 extern void E_P24(unsigned char *p21, const unsigned char *c8,
434 unsigned char *p24);
435 #endif /* _CIFSPROTO_H */