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_receive_t *receive,
73 mid_callback_t *callback, void *cbdata,
75 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
76 struct smb_hdr * /* input */ ,
77 struct smb_hdr * /* out */ ,
78 int * /* bytes returned */ , const int long_op);
79 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
80 struct smb_hdr *in_buf, int flags);
81 extern int cifs_check_receive(struct mid_q_entry *mid,
82 struct TCP_Server_Info *server, bool log_error);
83 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
84 struct kvec *, int /* nvec to send */,
85 int * /* type of buf returned */ , const int flags);
86 extern int SendReceiveBlockingLock(const unsigned int xid,
87 struct cifs_tcon *ptcon,
88 struct smb_hdr *in_buf ,
89 struct smb_hdr *out_buf,
91 extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
92 extern bool is_valid_oplock_break(struct smb_hdr *smb,
93 struct TCP_Server_Info *);
94 extern bool backup_cred(struct cifs_sb_info *);
95 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
96 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
97 unsigned int bytes_written);
98 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
99 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
100 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
101 extern int decode_negTokenInit(unsigned char *security_blob, int length,
102 struct TCP_Server_Info *server);
103 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
104 extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
105 extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
106 const unsigned short int port);
107 extern int map_smb_to_linux_error(struct smb_hdr *smb, bool logErr);
108 extern void header_assemble(struct smb_hdr *, char /* command */ ,
109 const struct cifs_tcon *, int /* length of
110 fixed section (word count) in two byte units */);
111 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
112 struct cifs_ses *ses,
114 extern int CIFS_SessSetup(unsigned int xid, struct cifs_ses *ses,
115 const struct nls_table *nls_cp);
116 extern __u16 GetNextMid(struct TCP_Server_Info *server);
117 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
118 extern u64 cifs_UnixTimeToNT(struct timespec);
119 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
121 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
123 extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
124 struct file *file, struct tcon_link *tlink,
126 extern int cifs_posix_open(char *full_path, struct inode **pinode,
127 struct super_block *sb,
128 int mode, unsigned int f_flags,
129 __u32 *poplock, __u16 *pnetfid, int xid);
130 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
131 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
132 FILE_UNIX_BASIC_INFO *info,
133 struct cifs_sb_info *cifs_sb);
134 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
135 extern struct inode *cifs_iget(struct super_block *sb,
136 struct cifs_fattr *fattr);
138 extern int cifs_get_file_info(struct file *filp);
139 extern int cifs_get_inode_info(struct inode **pinode,
140 const unsigned char *search_path,
141 FILE_ALL_INFO *pfile_info,
142 struct super_block *sb, int xid, const __u16 *pfid);
143 extern int cifs_get_file_info_unix(struct file *filp);
144 extern int cifs_get_inode_info_unix(struct inode **pinode,
145 const unsigned char *search_path,
146 struct super_block *sb, int xid);
147 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
148 struct cifs_fattr *fattr, struct inode *inode,
149 const char *path, const __u16 *pfid);
150 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
152 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
153 const char *, u32 *);
154 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
157 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
158 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
159 unsigned int to_read);
160 extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
161 struct kvec *iov_orig, unsigned int nr_segs,
162 unsigned int to_read);
163 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
164 struct cifs_sb_info *cifs_sb);
165 extern int cifs_match_super(struct super_block *, void *);
166 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
167 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
168 const char *devname);
169 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
170 extern void cifs_umount(struct cifs_sb_info *);
171 extern void cifs_dfs_release_automount_timer(void);
172 void cifs_proc_init(void);
173 void cifs_proc_clean(void);
175 extern int cifs_negotiate_protocol(unsigned int xid,
176 struct cifs_ses *ses);
177 extern int cifs_setup_session(unsigned int xid, struct cifs_ses *ses,
178 struct nls_table *nls_info);
179 extern int CIFSSMBNegotiate(unsigned int xid, struct cifs_ses *ses);
181 extern int CIFSTCon(unsigned int xid, struct cifs_ses *ses,
182 const char *tree, struct cifs_tcon *tcon,
183 const struct nls_table *);
185 extern int CIFSFindFirst(const int xid, struct cifs_tcon *tcon,
186 const char *searchName, const struct nls_table *nls_codepage,
187 __u16 *searchHandle, struct cifs_search_info *psrch_inf,
188 int map, const char dirsep);
190 extern int CIFSFindNext(const int xid, struct cifs_tcon *tcon,
191 __u16 searchHandle, struct cifs_search_info *psrch_inf);
193 extern int CIFSFindClose(const int, struct cifs_tcon *tcon,
194 const __u16 search_handle);
196 extern int CIFSSMBQFileInfo(const int xid, struct cifs_tcon *tcon,
197 u16 netfid, FILE_ALL_INFO *pFindData);
198 extern int CIFSSMBQPathInfo(const int xid, struct cifs_tcon *tcon,
199 const unsigned char *searchName,
200 FILE_ALL_INFO *findData,
201 int legacy /* whether to use old info level */,
202 const struct nls_table *nls_codepage, int remap);
203 extern int SMBQueryInformation(const int xid, struct cifs_tcon *tcon,
204 const unsigned char *searchName,
205 FILE_ALL_INFO *findData,
206 const struct nls_table *nls_codepage, int remap);
208 extern int CIFSSMBUnixQFileInfo(const int xid, struct cifs_tcon *tcon,
209 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
210 extern int CIFSSMBUnixQPathInfo(const int xid,
211 struct cifs_tcon *tcon,
212 const unsigned char *searchName,
213 FILE_UNIX_BASIC_INFO *pFindData,
214 const struct nls_table *nls_codepage, int remap);
216 extern int CIFSGetDFSRefer(const int xid, struct cifs_ses *ses,
217 const unsigned char *searchName,
218 struct dfs_info3_param **target_nodes,
219 unsigned int *number_of_nodes_in_array,
220 const struct nls_table *nls_codepage, int remap);
222 extern int get_dfs_path(int xid, struct cifs_ses *pSesInfo,
223 const char *old_path,
224 const struct nls_table *nls_codepage,
225 unsigned int *pnum_referrals,
226 struct dfs_info3_param **preferrals,
228 extern void reset_cifs_unix_caps(int xid, struct cifs_tcon *tcon,
229 struct cifs_sb_info *cifs_sb,
230 struct smb_vol *vol);
231 extern int CIFSSMBQFSInfo(const int xid, struct cifs_tcon *tcon,
232 struct kstatfs *FSData);
233 extern int SMBOldQFSInfo(const int xid, struct cifs_tcon *tcon,
234 struct kstatfs *FSData);
235 extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifs_tcon *tcon,
238 extern int CIFSSMBQFSAttributeInfo(const int xid,
239 struct cifs_tcon *tcon);
240 extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifs_tcon *tcon);
241 extern int CIFSSMBQFSUnixInfo(const int xid, struct cifs_tcon *tcon);
242 extern int CIFSSMBQFSPosixInfo(const int xid, struct cifs_tcon *tcon,
243 struct kstatfs *FSData);
245 extern int CIFSSMBSetPathInfo(const int xid, struct cifs_tcon *tcon,
246 const char *fileName, const FILE_BASIC_INFO *data,
247 const struct nls_table *nls_codepage,
248 int remap_special_chars);
249 extern int CIFSSMBSetFileInfo(const int xid, struct cifs_tcon *tcon,
250 const FILE_BASIC_INFO *data, __u16 fid,
251 __u32 pid_of_opener);
252 extern int CIFSSMBSetFileDisposition(const int xid, struct cifs_tcon *tcon,
253 bool delete_file, __u16 fid, __u32 pid_of_opener);
255 extern int CIFSSMBSetAttrLegacy(int xid, struct cifs_tcon *tcon,
256 char *fileName, __u16 dos_attributes,
257 const struct nls_table *nls_codepage);
258 #endif /* possibly unneeded function */
259 extern int CIFSSMBSetEOF(const int xid, struct cifs_tcon *tcon,
260 const char *fileName, __u64 size,
261 bool setAllocationSizeFlag,
262 const struct nls_table *nls_codepage,
263 int remap_special_chars);
264 extern int CIFSSMBSetFileSize(const int xid, struct cifs_tcon *tcon,
265 __u64 size, __u16 fileHandle, __u32 opener_pid,
268 struct cifs_unix_set_info_args {
278 extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
279 const struct cifs_unix_set_info_args *args,
280 u16 fid, u32 pid_of_opener);
282 extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifs_tcon *pTcon,
284 const struct cifs_unix_set_info_args *args,
285 const struct nls_table *nls_codepage,
286 int remap_special_chars);
288 extern int CIFSSMBMkDir(const int xid, struct cifs_tcon *tcon,
290 const struct nls_table *nls_codepage,
291 int remap_special_chars);
292 extern int CIFSSMBRmDir(const int xid, struct cifs_tcon *tcon,
293 const char *name, const struct nls_table *nls_codepage,
294 int remap_special_chars);
295 extern int CIFSPOSIXDelFile(const int xid, struct cifs_tcon *tcon,
296 const char *name, __u16 type,
297 const struct nls_table *nls_codepage,
298 int remap_special_chars);
299 extern int CIFSSMBDelFile(const int xid, struct cifs_tcon *tcon,
301 const struct nls_table *nls_codepage,
302 int remap_special_chars);
303 extern int CIFSSMBRename(const int xid, struct cifs_tcon *tcon,
304 const char *fromName, const char *toName,
305 const struct nls_table *nls_codepage,
306 int remap_special_chars);
307 extern int CIFSSMBRenameOpenFile(const int xid, struct cifs_tcon *pTcon,
308 int netfid, const char *target_name,
309 const struct nls_table *nls_codepage,
310 int remap_special_chars);
311 extern int CIFSCreateHardLink(const int xid,
312 struct cifs_tcon *tcon,
313 const char *fromName, const char *toName,
314 const struct nls_table *nls_codepage,
315 int remap_special_chars);
316 extern int CIFSUnixCreateHardLink(const int xid,
317 struct cifs_tcon *tcon,
318 const char *fromName, const char *toName,
319 const struct nls_table *nls_codepage,
320 int remap_special_chars);
321 extern int CIFSUnixCreateSymLink(const int xid,
322 struct cifs_tcon *tcon,
323 const char *fromName, const char *toName,
324 const struct nls_table *nls_codepage);
325 extern int CIFSSMBUnixQuerySymLink(const int xid,
326 struct cifs_tcon *tcon,
327 const unsigned char *searchName, char **syminfo,
328 const struct nls_table *nls_codepage);
329 #ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
330 extern int CIFSSMBQueryReparseLinkInfo(const int xid,
331 struct cifs_tcon *tcon,
332 const unsigned char *searchName,
333 char *symlinkinfo, const int buflen, __u16 fid,
334 const struct nls_table *nls_codepage);
335 #endif /* temporarily unused until cifs_symlink fixed */
336 extern int CIFSSMBOpen(const int xid, struct cifs_tcon *tcon,
337 const char *fileName, const int disposition,
338 const int access_flags, const int omode,
339 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
340 const struct nls_table *nls_codepage, int remap);
341 extern int SMBLegacyOpen(const int xid, struct cifs_tcon *tcon,
342 const char *fileName, const int disposition,
343 const int access_flags, const int omode,
344 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
345 const struct nls_table *nls_codepage, int remap);
346 extern int CIFSPOSIXCreate(const int xid, struct cifs_tcon *tcon,
347 u32 posix_flags, __u64 mode, __u16 *netfid,
348 FILE_UNIX_BASIC_INFO *pRetData,
349 __u32 *pOplock, const char *name,
350 const struct nls_table *nls_codepage, int remap);
351 extern int CIFSSMBClose(const int xid, struct cifs_tcon *tcon,
352 const int smb_file_id);
354 extern int CIFSSMBFlush(const int xid, struct cifs_tcon *tcon,
355 const int smb_file_id);
357 extern int CIFSSMBRead(const int xid, struct cifs_io_parms *io_parms,
358 unsigned int *nbytes, char **buf,
359 int *return_buf_type);
360 extern int CIFSSMBWrite(const int xid, struct cifs_io_parms *io_parms,
361 unsigned int *nbytes, const char *buf,
362 const char __user *ubuf, const int long_op);
363 extern int CIFSSMBWrite2(const int xid, struct cifs_io_parms *io_parms,
364 unsigned int *nbytes, struct kvec *iov, const int nvec,
366 extern int CIFSGetSrvInodeNumber(const int xid, struct cifs_tcon *tcon,
367 const unsigned char *searchName, __u64 *inode_number,
368 const struct nls_table *nls_codepage,
369 int remap_special_chars);
371 extern int CIFSSMBLock(const int xid, struct cifs_tcon *tcon,
372 const __u16 netfid, const __u32 netpid, const __u64 len,
373 const __u64 offset, const __u32 numUnlock,
374 const __u32 numLock, const __u8 lockType,
375 const bool waitFlag, const __u8 oplock_level);
376 extern int CIFSSMBPosixLock(const int xid, struct cifs_tcon *tcon,
377 const __u16 smb_file_id, const int get_flag,
378 const __u64 len, struct file_lock *,
379 const __u16 lock_type, const bool waitFlag);
380 extern int CIFSSMBTDis(const int xid, struct cifs_tcon *tcon);
381 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
382 extern int CIFSSMBLogoff(const int xid, struct cifs_ses *ses);
384 extern struct cifs_ses *sesInfoAlloc(void);
385 extern void sesInfoFree(struct cifs_ses *);
386 extern struct cifs_tcon *tconInfoAlloc(void);
387 extern void tconInfoFree(struct cifs_tcon *);
389 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
390 extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
392 extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
393 struct TCP_Server_Info *server,
394 __u32 expected_sequence_number);
395 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *);
396 extern int setup_ntlm_response(struct cifs_ses *);
397 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
398 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
399 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
400 extern int calc_seckey(struct cifs_ses *);
402 #ifdef CONFIG_CIFS_WEAK_PW_HASH
403 extern int calc_lanman_hash(const char *password, const char *cryptkey,
404 bool encrypt, char *lnm_session_key);
405 #endif /* CIFS_WEAK_PW_HASH */
406 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
407 extern int CIFSSMBNotify(const int xid, struct cifs_tcon *tcon,
408 const int notify_subdirs, const __u16 netfid,
409 __u32 filter, struct file *file, int multishot,
410 const struct nls_table *nls_codepage);
411 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
412 extern int CIFSSMBCopy(int xid,
413 struct cifs_tcon *source_tcon,
414 const char *fromName,
415 const __u16 target_tid,
416 const char *toName, const int flags,
417 const struct nls_table *nls_codepage,
418 int remap_special_chars);
419 extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifs_tcon *tcon,
420 const unsigned char *searchName,
421 const unsigned char *ea_name, char *EAData,
422 size_t bufsize, const struct nls_table *nls_codepage,
423 int remap_special_chars);
424 extern int CIFSSMBSetEA(const int xid, struct cifs_tcon *tcon,
425 const char *fileName, const char *ea_name,
426 const void *ea_value, const __u16 ea_value_len,
427 const struct nls_table *nls_codepage, int remap_special_chars);
428 extern int CIFSSMBGetCIFSACL(const int xid, struct cifs_tcon *tcon,
429 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
430 extern int CIFSSMBSetCIFSACL(const int, struct cifs_tcon *, __u16,
431 struct cifs_ntsd *, __u32, int);
432 extern int CIFSSMBGetPosixACL(const int xid, struct cifs_tcon *tcon,
433 const unsigned char *searchName,
434 char *acl_inf, const int buflen, const int acl_type,
435 const struct nls_table *nls_codepage, int remap_special_chars);
436 extern int CIFSSMBSetPosixACL(const int xid, struct cifs_tcon *tcon,
437 const unsigned char *fileName,
438 const char *local_acl, const int buflen, const int acl_type,
439 const struct nls_table *nls_codepage, int remap_special_chars);
440 extern int CIFSGetExtAttr(const int xid, struct cifs_tcon *tcon,
441 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
442 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
443 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
444 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
445 const unsigned char *path,
446 struct cifs_sb_info *cifs_sb, int xid);
447 extern int mdfour(unsigned char *, unsigned char *, int);
448 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16);
449 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
452 /* asynchronous read support */
453 struct cifs_readdata {
454 struct cifsFileInfo *cfile;
455 struct address_space *mapping;
460 struct list_head pages;
461 struct work_struct work;
466 struct cifs_readdata *cifs_readdata_alloc(unsigned int nr_pages);
467 void cifs_readdata_free(struct cifs_readdata *rdata);
468 int cifs_async_readv(struct cifs_readdata *rdata);
470 /* asynchronous write support */
471 struct cifs_writedata {
472 struct kref refcount;
473 enum writeback_sync_modes sync_mode;
474 struct work_struct work;
475 struct cifsFileInfo *cfile;
479 unsigned int nr_pages;
480 struct page *pages[1];
483 int cifs_async_writev(struct cifs_writedata *wdata);
484 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages);
485 void cifs_writedata_release(struct kref *refcount);
487 #endif /* _CIFSPROTO_H */