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 _GetXid(void);
41 extern void _FreeXid(unsigned int);
44 int __xid = (int)_GetXid(); \
45 cFYI(1, "CIFS VFS: in %s as Xid: %d with uid: %d", \
46 __func__, __xid, current_fsuid()); \
50 #define FreeXid(curr_xid) \
53 cFYI(1, "CIFS VFS: leaving %s (xid = %d) 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 *cifs_build_path_to_root(struct smb_vol *vol,
61 struct cifs_sb_info *cifs_sb,
62 struct cifs_tcon *tcon);
63 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
64 extern char *cifs_compose_mount_options(const char *sb_mountdata,
65 const char *fullpath, const struct dfs_info3_param *ref,
67 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
68 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
69 struct TCP_Server_Info *server);
70 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
71 extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
72 unsigned int nvec, mid_callback_t *callback,
73 void *cbdata, bool ignore_pend);
74 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
75 struct smb_hdr * /* input */ ,
76 struct smb_hdr * /* out */ ,
77 int * /* bytes returned */ , const int long_op);
78 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
79 struct smb_hdr *in_buf, int flags);
80 extern int cifs_check_receive(struct mid_q_entry *mid,
81 struct TCP_Server_Info *server, bool log_error);
82 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
83 struct kvec *, int /* nvec to send */,
84 int * /* type of buf returned */ , const int flags);
85 extern int SendReceiveBlockingLock(const unsigned int xid,
86 struct cifs_tcon *ptcon,
87 struct smb_hdr *in_buf ,
88 struct smb_hdr *out_buf,
90 extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
91 extern bool is_valid_oplock_break(struct smb_hdr *smb,
92 struct TCP_Server_Info *);
93 extern bool backup_cred(struct cifs_sb_info *);
94 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
95 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
96 unsigned int bytes_written);
97 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
98 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
99 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
100 extern int decode_negTokenInit(unsigned char *security_blob, int length,
101 struct TCP_Server_Info *server);
102 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
103 extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
104 extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
105 const unsigned short int port);
106 extern int map_smb_to_linux_error(struct smb_hdr *smb, bool logErr);
107 extern void header_assemble(struct smb_hdr *, char /* command */ ,
108 const struct cifs_tcon *, int /* length of
109 fixed section (word count) in two byte units */);
110 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
111 struct cifs_ses *ses,
113 extern int CIFS_SessSetup(unsigned int xid, struct cifs_ses *ses,
114 const struct nls_table *nls_cp);
115 extern __u16 GetNextMid(struct TCP_Server_Info *server);
116 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
117 extern u64 cifs_UnixTimeToNT(struct timespec);
118 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
120 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
122 extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
123 struct file *file, struct tcon_link *tlink,
125 extern int cifs_posix_open(char *full_path, struct inode **pinode,
126 struct super_block *sb,
127 int mode, unsigned int f_flags,
128 __u32 *poplock, __u16 *pnetfid, int xid);
129 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
130 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
131 FILE_UNIX_BASIC_INFO *info,
132 struct cifs_sb_info *cifs_sb);
133 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
134 extern struct inode *cifs_iget(struct super_block *sb,
135 struct cifs_fattr *fattr);
137 extern int cifs_get_file_info(struct file *filp);
138 extern int cifs_get_inode_info(struct inode **pinode,
139 const unsigned char *search_path,
140 FILE_ALL_INFO *pfile_info,
141 struct super_block *sb, int xid, const __u16 *pfid);
142 extern int cifs_get_file_info_unix(struct file *filp);
143 extern int cifs_get_inode_info_unix(struct inode **pinode,
144 const unsigned char *search_path,
145 struct super_block *sb, int xid);
146 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
147 struct cifs_fattr *fattr, struct inode *inode,
148 const char *path, const __u16 *pfid);
149 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
151 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
152 const char *, u32 *);
153 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
156 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
157 struct cifs_sb_info *cifs_sb);
158 extern int cifs_match_super(struct super_block *, void *);
159 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
160 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
161 const char *devname);
162 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
163 extern void cifs_umount(struct cifs_sb_info *);
164 extern void cifs_dfs_release_automount_timer(void);
165 void cifs_proc_init(void);
166 void cifs_proc_clean(void);
168 extern int cifs_negotiate_protocol(unsigned int xid,
169 struct cifs_ses *ses);
170 extern int cifs_setup_session(unsigned int xid, struct cifs_ses *ses,
171 struct nls_table *nls_info);
172 extern int CIFSSMBNegotiate(unsigned int xid, struct cifs_ses *ses);
174 extern int CIFSTCon(unsigned int xid, struct cifs_ses *ses,
175 const char *tree, struct cifs_tcon *tcon,
176 const struct nls_table *);
178 extern int CIFSFindFirst(const int xid, struct cifs_tcon *tcon,
179 const char *searchName, const struct nls_table *nls_codepage,
180 __u16 *searchHandle, struct cifs_search_info *psrch_inf,
181 int map, const char dirsep);
183 extern int CIFSFindNext(const int xid, struct cifs_tcon *tcon,
184 __u16 searchHandle, struct cifs_search_info *psrch_inf);
186 extern int CIFSFindClose(const int, struct cifs_tcon *tcon,
187 const __u16 search_handle);
189 extern int CIFSSMBQFileInfo(const int xid, struct cifs_tcon *tcon,
190 u16 netfid, FILE_ALL_INFO *pFindData);
191 extern int CIFSSMBQPathInfo(const int xid, struct cifs_tcon *tcon,
192 const unsigned char *searchName,
193 FILE_ALL_INFO *findData,
194 int legacy /* whether to use old info level */,
195 const struct nls_table *nls_codepage, int remap);
196 extern int SMBQueryInformation(const int xid, struct cifs_tcon *tcon,
197 const unsigned char *searchName,
198 FILE_ALL_INFO *findData,
199 const struct nls_table *nls_codepage, int remap);
201 extern int CIFSSMBUnixQFileInfo(const int xid, struct cifs_tcon *tcon,
202 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
203 extern int CIFSSMBUnixQPathInfo(const int xid,
204 struct cifs_tcon *tcon,
205 const unsigned char *searchName,
206 FILE_UNIX_BASIC_INFO *pFindData,
207 const struct nls_table *nls_codepage, int remap);
209 extern int CIFSGetDFSRefer(const int xid, struct cifs_ses *ses,
210 const unsigned char *searchName,
211 struct dfs_info3_param **target_nodes,
212 unsigned int *number_of_nodes_in_array,
213 const struct nls_table *nls_codepage, int remap);
215 extern int get_dfs_path(int xid, struct cifs_ses *pSesInfo,
216 const char *old_path,
217 const struct nls_table *nls_codepage,
218 unsigned int *pnum_referrals,
219 struct dfs_info3_param **preferrals,
221 extern void reset_cifs_unix_caps(int xid, struct cifs_tcon *tcon,
222 struct cifs_sb_info *cifs_sb,
223 struct smb_vol *vol);
224 extern int CIFSSMBQFSInfo(const int xid, struct cifs_tcon *tcon,
225 struct kstatfs *FSData);
226 extern int SMBOldQFSInfo(const int xid, struct cifs_tcon *tcon,
227 struct kstatfs *FSData);
228 extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifs_tcon *tcon,
231 extern int CIFSSMBQFSAttributeInfo(const int xid,
232 struct cifs_tcon *tcon);
233 extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifs_tcon *tcon);
234 extern int CIFSSMBQFSUnixInfo(const int xid, struct cifs_tcon *tcon);
235 extern int CIFSSMBQFSPosixInfo(const int xid, struct cifs_tcon *tcon,
236 struct kstatfs *FSData);
238 extern int CIFSSMBSetPathInfo(const int xid, struct cifs_tcon *tcon,
239 const char *fileName, const FILE_BASIC_INFO *data,
240 const struct nls_table *nls_codepage,
241 int remap_special_chars);
242 extern int CIFSSMBSetFileInfo(const int xid, struct cifs_tcon *tcon,
243 const FILE_BASIC_INFO *data, __u16 fid,
244 __u32 pid_of_opener);
245 extern int CIFSSMBSetFileDisposition(const int xid, struct cifs_tcon *tcon,
246 bool delete_file, __u16 fid, __u32 pid_of_opener);
248 extern int CIFSSMBSetAttrLegacy(int xid, struct cifs_tcon *tcon,
249 char *fileName, __u16 dos_attributes,
250 const struct nls_table *nls_codepage);
251 #endif /* possibly unneeded function */
252 extern int CIFSSMBSetEOF(const int xid, struct cifs_tcon *tcon,
253 const char *fileName, __u64 size,
254 bool setAllocationSizeFlag,
255 const struct nls_table *nls_codepage,
256 int remap_special_chars);
257 extern int CIFSSMBSetFileSize(const int xid, struct cifs_tcon *tcon,
258 __u64 size, __u16 fileHandle, __u32 opener_pid,
261 struct cifs_unix_set_info_args {
271 extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
272 const struct cifs_unix_set_info_args *args,
273 u16 fid, u32 pid_of_opener);
275 extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifs_tcon *pTcon,
277 const struct cifs_unix_set_info_args *args,
278 const struct nls_table *nls_codepage,
279 int remap_special_chars);
281 extern int CIFSSMBMkDir(const int xid, struct cifs_tcon *tcon,
283 const struct nls_table *nls_codepage,
284 int remap_special_chars);
285 extern int CIFSSMBRmDir(const int xid, struct cifs_tcon *tcon,
286 const char *name, const struct nls_table *nls_codepage,
287 int remap_special_chars);
288 extern int CIFSPOSIXDelFile(const int xid, struct cifs_tcon *tcon,
289 const char *name, __u16 type,
290 const struct nls_table *nls_codepage,
291 int remap_special_chars);
292 extern int CIFSSMBDelFile(const int xid, struct cifs_tcon *tcon,
294 const struct nls_table *nls_codepage,
295 int remap_special_chars);
296 extern int CIFSSMBRename(const int xid, struct cifs_tcon *tcon,
297 const char *fromName, const char *toName,
298 const struct nls_table *nls_codepage,
299 int remap_special_chars);
300 extern int CIFSSMBRenameOpenFile(const int xid, struct cifs_tcon *pTcon,
301 int netfid, const char *target_name,
302 const struct nls_table *nls_codepage,
303 int remap_special_chars);
304 extern int CIFSCreateHardLink(const int xid,
305 struct cifs_tcon *tcon,
306 const char *fromName, const char *toName,
307 const struct nls_table *nls_codepage,
308 int remap_special_chars);
309 extern int CIFSUnixCreateHardLink(const int xid,
310 struct cifs_tcon *tcon,
311 const char *fromName, const char *toName,
312 const struct nls_table *nls_codepage,
313 int remap_special_chars);
314 extern int CIFSUnixCreateSymLink(const int xid,
315 struct cifs_tcon *tcon,
316 const char *fromName, const char *toName,
317 const struct nls_table *nls_codepage);
318 extern int CIFSSMBUnixQuerySymLink(const int xid,
319 struct cifs_tcon *tcon,
320 const unsigned char *searchName, char **syminfo,
321 const struct nls_table *nls_codepage);
322 #ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
323 extern int CIFSSMBQueryReparseLinkInfo(const int xid,
324 struct cifs_tcon *tcon,
325 const unsigned char *searchName,
326 char *symlinkinfo, const int buflen, __u16 fid,
327 const struct nls_table *nls_codepage);
328 #endif /* temporarily unused until cifs_symlink fixed */
329 extern int CIFSSMBOpen(const int xid, struct cifs_tcon *tcon,
330 const char *fileName, const int disposition,
331 const int access_flags, const int omode,
332 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
333 const struct nls_table *nls_codepage, int remap);
334 extern int SMBLegacyOpen(const int xid, struct cifs_tcon *tcon,
335 const char *fileName, const int disposition,
336 const int access_flags, const int omode,
337 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
338 const struct nls_table *nls_codepage, int remap);
339 extern int CIFSPOSIXCreate(const int xid, struct cifs_tcon *tcon,
340 u32 posix_flags, __u64 mode, __u16 *netfid,
341 FILE_UNIX_BASIC_INFO *pRetData,
342 __u32 *pOplock, const char *name,
343 const struct nls_table *nls_codepage, int remap);
344 extern int CIFSSMBClose(const int xid, struct cifs_tcon *tcon,
345 const int smb_file_id);
347 extern int CIFSSMBFlush(const int xid, struct cifs_tcon *tcon,
348 const int smb_file_id);
350 extern int CIFSSMBRead(const int xid, struct cifs_io_parms *io_parms,
351 unsigned int *nbytes, char **buf,
352 int *return_buf_type);
353 extern int CIFSSMBWrite(const int xid, struct cifs_io_parms *io_parms,
354 unsigned int *nbytes, const char *buf,
355 const char __user *ubuf, const int long_op);
356 extern int CIFSSMBWrite2(const int xid, struct cifs_io_parms *io_parms,
357 unsigned int *nbytes, struct kvec *iov, const int nvec,
359 extern int CIFSGetSrvInodeNumber(const int xid, struct cifs_tcon *tcon,
360 const unsigned char *searchName, __u64 *inode_number,
361 const struct nls_table *nls_codepage,
362 int remap_special_chars);
364 extern int CIFSSMBLock(const int xid, struct cifs_tcon *tcon,
365 const __u16 netfid, const __u32 netpid, const __u64 len,
366 const __u64 offset, const __u32 numUnlock,
367 const __u32 numLock, const __u8 lockType,
368 const bool waitFlag, const __u8 oplock_level);
369 extern int CIFSSMBPosixLock(const int xid, struct cifs_tcon *tcon,
370 const __u16 smb_file_id, const int get_flag,
371 const __u64 len, struct file_lock *,
372 const __u16 lock_type, const bool waitFlag);
373 extern int CIFSSMBTDis(const int xid, struct cifs_tcon *tcon);
374 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
375 extern int CIFSSMBLogoff(const int xid, struct cifs_ses *ses);
377 extern struct cifs_ses *sesInfoAlloc(void);
378 extern void sesInfoFree(struct cifs_ses *);
379 extern struct cifs_tcon *tconInfoAlloc(void);
380 extern void tconInfoFree(struct cifs_tcon *);
382 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
383 extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
385 extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
386 struct TCP_Server_Info *server,
387 __u32 expected_sequence_number);
388 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *);
389 extern int setup_ntlm_response(struct cifs_ses *);
390 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
391 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
392 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
393 extern int calc_seckey(struct cifs_ses *);
395 #ifdef CONFIG_CIFS_WEAK_PW_HASH
396 extern int calc_lanman_hash(const char *password, const char *cryptkey,
397 bool encrypt, char *lnm_session_key);
398 #endif /* CIFS_WEAK_PW_HASH */
399 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
400 extern int CIFSSMBNotify(const int xid, struct cifs_tcon *tcon,
401 const int notify_subdirs, const __u16 netfid,
402 __u32 filter, struct file *file, int multishot,
403 const struct nls_table *nls_codepage);
404 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
405 extern int CIFSSMBCopy(int xid,
406 struct cifs_tcon *source_tcon,
407 const char *fromName,
408 const __u16 target_tid,
409 const char *toName, const int flags,
410 const struct nls_table *nls_codepage,
411 int remap_special_chars);
412 extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifs_tcon *tcon,
413 const unsigned char *searchName,
414 const unsigned char *ea_name, char *EAData,
415 size_t bufsize, const struct nls_table *nls_codepage,
416 int remap_special_chars);
417 extern int CIFSSMBSetEA(const int xid, struct cifs_tcon *tcon,
418 const char *fileName, const char *ea_name,
419 const void *ea_value, const __u16 ea_value_len,
420 const struct nls_table *nls_codepage, int remap_special_chars);
421 extern int CIFSSMBGetCIFSACL(const int xid, struct cifs_tcon *tcon,
422 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
423 extern int CIFSSMBSetCIFSACL(const int, struct cifs_tcon *, __u16,
424 struct cifs_ntsd *, __u32, int);
425 extern int CIFSSMBGetPosixACL(const int xid, struct cifs_tcon *tcon,
426 const unsigned char *searchName,
427 char *acl_inf, const int buflen, const int acl_type,
428 const struct nls_table *nls_codepage, int remap_special_chars);
429 extern int CIFSSMBSetPosixACL(const int xid, struct cifs_tcon *tcon,
430 const unsigned char *fileName,
431 const char *local_acl, const int buflen, const int acl_type,
432 const struct nls_table *nls_codepage, int remap_special_chars);
433 extern int CIFSGetExtAttr(const int xid, struct cifs_tcon *tcon,
434 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
435 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
436 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
437 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
438 const unsigned char *path,
439 struct cifs_sb_info *cifs_sb, int xid);
440 extern int mdfour(unsigned char *, unsigned char *, int);
441 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16);
442 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
445 /* asynchronous write support */
446 struct cifs_writedata {
447 struct kref refcount;
448 enum writeback_sync_modes sync_mode;
449 struct work_struct work;
450 struct cifsFileInfo *cfile;
454 unsigned int nr_pages;
455 struct page *pages[1];
458 int cifs_async_writev(struct cifs_writedata *wdata);
459 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages);
460 void cifs_writedata_release(struct kref *refcount);
462 #endif /* _CIFSPROTO_H */