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
25 struct statfs;
26 struct smb_vol;
27
28 /*
29 *****************************************************************
30 * All Prototypes
31 *****************************************************************
32 */
33
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() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__func__, xid,current_fsuid()));
43 #define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__func__,curr_xid,(int)rc));}
44 extern char *build_path_from_dentry(struct dentry *);
45 extern char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb);
46 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
47 extern char *cifs_compose_mount_options(const char *sb_mountdata,
48 const char *fullpath, const struct dfs_info3_param *ref,
49 char **devname);
50 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
51 extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
52 struct smb_hdr * /* input */ ,
53 struct smb_hdr * /* out */ ,
54 int * /* bytes returned */ , const int long_op);
55 extern int SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
56 struct smb_hdr *in_buf, int flags);
57 extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
58 struct kvec *, int /* nvec to send */,
59 int * /* type of buf returned */ , const int flags);
60 extern int SendReceiveBlockingLock(const unsigned int xid,
61 struct cifsTconInfo *ptcon,
62 struct smb_hdr *in_buf ,
63 struct smb_hdr *out_buf,
64 int *bytes_returned);
65 extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
66 extern bool is_valid_oplock_break(struct smb_hdr *smb,
67 struct TCP_Server_Info *);
68 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
69 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
70 #ifdef CONFIG_CIFS_EXPERIMENTAL
71 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *);
72 #endif
73 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
74 extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
75 extern int decode_negTokenInit(unsigned char *security_blob, int length,
76 enum securityEnum *secType);
77 extern int cifs_convert_address(char *src, void *dst);
78 extern int map_smb_to_linux_error(struct smb_hdr *smb, int logErr);
79 extern void header_assemble(struct smb_hdr *, char /* command */ ,
80 const struct cifsTconInfo *, int /* length of
81 fixed section (word count) in two byte units */);
82 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
83 struct cifsSesInfo *ses,
84 void **request_buf);
85 extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
86 const int stage,
87 const struct nls_table *nls_cp);
88 extern __u16 GetNextMid(struct TCP_Server_Info *server);
89 extern struct oplock_q_entry *AllocOplockQEntry(struct inode *, u16,
90 struct cifsTconInfo *);
91 extern void DeleteOplockQEntry(struct oplock_q_entry *);
92 extern void DeleteTconOplockQEntries(struct cifsTconInfo *);
93 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
94 extern u64 cifs_UnixTimeToNT(struct timespec);
95 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
96 int offset);
97
98 extern int cifs_posix_open(char *full_path, struct inode **pinode,
99 struct super_block *sb, int mode, int oflags,
100 int *poplock, __u16 *pnetfid, int xid);
101 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
102 FILE_UNIX_BASIC_INFO *info,
103 struct cifs_sb_info *cifs_sb);
104 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
105 extern struct inode *cifs_iget(struct super_block *sb,
106 struct cifs_fattr *fattr);
107
108 extern int cifs_get_inode_info(struct inode **pinode,
109 const unsigned char *search_path,
110 FILE_ALL_INFO *pfile_info,
111 struct super_block *sb, int xid, const __u16 *pfid);
112 extern int cifs_get_inode_info_unix(struct inode **pinode,
113 const unsigned char *search_path,
114 struct super_block *sb, int xid);
115 extern void cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
116 struct cifs_fattr *fattr, struct inode *inode,
117 const char *path, const __u16 *pfid);
118 extern int mode_to_acl(struct inode *inode, const char *path, __u64);
119
120 extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
121 const char *);
122 extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
123 extern void cifs_dfs_release_automount_timer(void);
124 void cifs_proc_init(void);
125 void cifs_proc_clean(void);
126
127 extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
128 struct nls_table *nls_info);
129 extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses);
130
131 extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
132 const char *tree, struct cifsTconInfo *tcon,
133 const struct nls_table *);
134
135 extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
136 const char *searchName, const struct nls_table *nls_codepage,
137 __u16 *searchHandle, struct cifs_search_info *psrch_inf,
138 int map, const char dirsep);
139
140 extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
141 __u16 searchHandle, struct cifs_search_info *psrch_inf);
142
143 extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
144 const __u16 search_handle);
145
146 extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
147 const unsigned char *searchName,
148 FILE_ALL_INFO *findData,
149 int legacy /* whether to use old info level */,
150 const struct nls_table *nls_codepage, int remap);
151 extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
152 const unsigned char *searchName,
153 FILE_ALL_INFO *findData,
154 const struct nls_table *nls_codepage, int remap);
155
156 extern int CIFSSMBUnixQPathInfo(const int xid,
157 struct cifsTconInfo *tcon,
158 const unsigned char *searchName,
159 FILE_UNIX_BASIC_INFO *pFindData,
160 const struct nls_table *nls_codepage, int remap);
161
162 extern int CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
163 const unsigned char *searchName,
164 struct dfs_info3_param **target_nodes,
165 unsigned int *number_of_nodes_in_array,
166 const struct nls_table *nls_codepage, int remap);
167
168 extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
169 const char *old_path,
170 const struct nls_table *nls_codepage,
171 unsigned int *pnum_referrals,
172 struct dfs_info3_param **preferrals,
173 int remap);
174 extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
175 struct super_block *sb, struct smb_vol *vol);
176 extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon,
177 struct kstatfs *FSData);
178 extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon,
179 struct kstatfs *FSData);
180 extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon,
181 __u64 cap);
182
183 extern int CIFSSMBQFSAttributeInfo(const int xid,
184 struct cifsTconInfo *tcon);
185 extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon);
186 extern int CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon);
187 extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
188 struct kstatfs *FSData);
189
190 extern int CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
191 const char *fileName, const FILE_BASIC_INFO *data,
192 const struct nls_table *nls_codepage,
193 int remap_special_chars);
194 extern int CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
195 const FILE_BASIC_INFO *data, __u16 fid,
196 __u32 pid_of_opener);
197 extern int CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon,
198 bool delete_file, __u16 fid, __u32 pid_of_opener);
199 #if 0
200 extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
201 char *fileName, __u16 dos_attributes,
202 const struct nls_table *nls_codepage);
203 #endif /* possibly unneeded function */
204 extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon,
205 const char *fileName, __u64 size,
206 bool setAllocationSizeFlag,
207 const struct nls_table *nls_codepage,
208 int remap_special_chars);
209 extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
210 __u64 size, __u16 fileHandle, __u32 opener_pid,
211 bool AllocSizeFlag);
212
213 struct cifs_unix_set_info_args {
214 __u64 ctime;
215 __u64 atime;
216 __u64 mtime;
217 __u64 mode;
218 __u64 uid;
219 __u64 gid;
220 dev_t device;
221 };
222
223 extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon,
224 const struct cifs_unix_set_info_args *args,
225 u16 fid, u32 pid_of_opener);
226
227 extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *pTcon,
228 char *fileName,
229 const struct cifs_unix_set_info_args *args,
230 const struct nls_table *nls_codepage,
231 int remap_special_chars);
232
233 extern int CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon,
234 const char *newName,
235 const struct nls_table *nls_codepage,
236 int remap_special_chars);
237 extern int CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon,
238 const char *name, const struct nls_table *nls_codepage,
239 int remap_special_chars);
240 extern int CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon,
241 const char *name, __u16 type,
242 const struct nls_table *nls_codepage,
243 int remap_special_chars);
244 extern int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon,
245 const char *name,
246 const struct nls_table *nls_codepage,
247 int remap_special_chars);
248 extern int CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
249 const char *fromName, const char *toName,
250 const struct nls_table *nls_codepage,
251 int remap_special_chars);
252 extern int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
253 int netfid, const char *target_name,
254 const struct nls_table *nls_codepage,
255 int remap_special_chars);
256 extern int CIFSCreateHardLink(const int xid,
257 struct cifsTconInfo *tcon,
258 const char *fromName, const char *toName,
259 const struct nls_table *nls_codepage,
260 int remap_special_chars);
261 extern int CIFSUnixCreateHardLink(const int xid,
262 struct cifsTconInfo *tcon,
263 const char *fromName, const char *toName,
264 const struct nls_table *nls_codepage,
265 int remap_special_chars);
266 extern int CIFSUnixCreateSymLink(const int xid,
267 struct cifsTconInfo *tcon,
268 const char *fromName, const char *toName,
269 const struct nls_table *nls_codepage);
270 extern int CIFSSMBUnixQuerySymLink(const int xid,
271 struct cifsTconInfo *tcon,
272 const unsigned char *searchName, char **syminfo,
273 const struct nls_table *nls_codepage);
274 extern int CIFSSMBQueryReparseLinkInfo(const int xid,
275 struct cifsTconInfo *tcon,
276 const unsigned char *searchName,
277 char *symlinkinfo, const int buflen, __u16 fid,
278 const struct nls_table *nls_codepage);
279
280 extern int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
281 const char *fileName, const int disposition,
282 const int access_flags, const int omode,
283 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
284 const struct nls_table *nls_codepage, int remap);
285 extern int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
286 const char *fileName, const int disposition,
287 const int access_flags, const int omode,
288 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
289 const struct nls_table *nls_codepage, int remap);
290 extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon,
291 u32 posix_flags, __u64 mode, __u16 *netfid,
292 FILE_UNIX_BASIC_INFO *pRetData,
293 __u32 *pOplock, const char *name,
294 const struct nls_table *nls_codepage, int remap);
295 extern int CIFSSMBClose(const int xid, struct cifsTconInfo *tcon,
296 const int smb_file_id);
297
298 extern int CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon,
299 const int smb_file_id);
300
301 extern int CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
302 const int netfid, unsigned int count,
303 const __u64 lseek, unsigned int *nbytes, char **buf,
304 int *return_buf_type);
305 extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
306 const int netfid, const unsigned int count,
307 const __u64 lseek, unsigned int *nbytes,
308 const char *buf, const char __user *ubuf,
309 const int long_op);
310 extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
311 const int netfid, const unsigned int count,
312 const __u64 offset, unsigned int *nbytes,
313 struct kvec *iov, const int nvec, const int long_op);
314 extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
315 const unsigned char *searchName, __u64 *inode_number,
316 const struct nls_table *nls_codepage,
317 int remap_special_chars);
318 extern int cifsConvertToUCS(__le16 *target, const char *source, int maxlen,
319 const struct nls_table *cp, int mapChars);
320
321 extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
322 const __u16 netfid, const __u64 len,
323 const __u64 offset, const __u32 numUnlock,
324 const __u32 numLock, const __u8 lockType,
325 const bool waitFlag);
326 extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
327 const __u16 smb_file_id, const int get_flag,
328 const __u64 len, struct file_lock *,
329 const __u16 lock_type, const bool waitFlag);
330 extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon);
331 extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses);
332
333 extern struct cifsSesInfo *sesInfoAlloc(void);
334 extern void sesInfoFree(struct cifsSesInfo *);
335 extern struct cifsTconInfo *tconInfoAlloc(void);
336 extern void tconInfoFree(struct cifsTconInfo *);
337
338 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
339 extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
340 __u32 *);
341 extern int cifs_verify_signature(struct smb_hdr *,
342 const struct mac_key *mac_key,
343 __u32 expected_sequence_number);
344 extern int cifs_calculate_mac_key(struct mac_key *key, const char *rn,
345 const char *pass);
346 extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *,
347 const struct nls_table *);
348 extern void CalcNTLMv2_response(const struct cifsSesInfo *, char *);
349 extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
350 const struct nls_table *);
351 #ifdef CONFIG_CIFS_WEAK_PW_HASH
352 extern void calc_lanman_hash(const char *password, const char *cryptkey,
353 bool encrypt, char *lnm_session_key);
354 #endif /* CIFS_WEAK_PW_HASH */
355 extern int CIFSSMBCopy(int xid,
356 struct cifsTconInfo *source_tcon,
357 const char *fromName,
358 const __u16 target_tid,
359 const char *toName, const int flags,
360 const struct nls_table *nls_codepage,
361 int remap_special_chars);
362 extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
363 const int notify_subdirs, const __u16 netfid,
364 __u32 filter, struct file *file, int multishot,
365 const struct nls_table *nls_codepage);
366 extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
367 const unsigned char *searchName, char *EAData,
368 size_t bufsize, const struct nls_table *nls_codepage,
369 int remap_special_chars);
370 extern ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon,
371 const unsigned char *searchName, const unsigned char *ea_name,
372 unsigned char *ea_value, size_t buf_size,
373 const struct nls_table *nls_codepage, int remap_special_chars);
374 extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
375 const char *fileName, const char *ea_name,
376 const void *ea_value, const __u16 ea_value_len,
377 const struct nls_table *nls_codepage, int remap_special_chars);
378 extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon,
379 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
380 extern int CIFSSMBSetCIFSACL(const int, struct cifsTconInfo *, __u16,
381 struct cifs_ntsd *, __u32);
382 extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
383 const unsigned char *searchName,
384 char *acl_inf, const int buflen, const int acl_type,
385 const struct nls_table *nls_codepage, int remap_special_chars);
386 extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon,
387 const unsigned char *fileName,
388 const char *local_acl, const int buflen, const int acl_type,
389 const struct nls_table *nls_codepage, int remap_special_chars);
390 extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
391 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
392 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
393 #endif /* _CIFSPROTO_H */
394
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