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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
25struct statfs;
26struct smb_vol;
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 TCP_Server_Info *, struct smb_hdr *,
39 unsigned int /* length */);
40extern unsigned int _GetXid(void);
41extern 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; \
48})
49
50#define FreeXid(curr_xid) \
51do { \
52 _FreeXid(curr_xid); \
53 cFYI(1, "CIFS VFS: leaving %s (xid = %d) rc = %d", \
54 __func__, curr_xid, (int)rc); \
55} while (0)
56extern int init_cifs_idmap(void);
57extern void exit_cifs_idmap(void);
58extern void cifs_destroy_idmaptrees(void);
59extern char *build_path_from_dentry(struct dentry *);
60extern char *cifs_build_path_to_root(struct smb_vol *vol,
61 struct cifs_sb_info *cifs_sb,
62 struct cifs_tcon *tcon);
63extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
64extern char *cifs_compose_mount_options(const char *sb_mountdata,
65 const char *fullpath, const struct dfs_info3_param *ref,
66 char **devname);
67/* extern void renew_parental_timestamps(struct dentry *direntry);*/
68extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
69 struct TCP_Server_Info *server);
70extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
71extern 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,
74 bool ignore_pend);
75extern 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);
79extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
80 char *in_buf, int flags);
81extern int cifs_setup_request(struct cifs_ses *, struct kvec *, unsigned int,
82 struct mid_q_entry **);
83extern int cifs_check_receive(struct mid_q_entry *mid,
84 struct TCP_Server_Info *server, bool log_error);
85extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
86 struct kvec *, int /* nvec to send */,
87 int * /* type of buf returned */ , const int flags);
88extern int SendReceiveBlockingLock(const unsigned int xid,
89 struct cifs_tcon *ptcon,
90 struct smb_hdr *in_buf ,
91 struct smb_hdr *out_buf,
92 int *bytes_returned);
93extern int checkSMB(char *buf, unsigned int length);
94extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
95extern bool backup_cred(struct cifs_sb_info *);
96extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
97extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
98 unsigned int bytes_written);
99extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
100extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
101extern unsigned int smbCalcSize(struct smb_hdr *ptr);
102extern int decode_negTokenInit(unsigned char *security_blob, int length,
103 struct TCP_Server_Info *server);
104extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
105extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
106extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
107 const unsigned short int port);
108extern int map_smb_to_linux_error(char *buf, bool logErr);
109extern void header_assemble(struct smb_hdr *, char /* command */ ,
110 const struct cifs_tcon *, int /* length of
111 fixed section (word count) in two byte units */);
112extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
113 struct cifs_ses *ses,
114 void **request_buf);
115extern int CIFS_SessSetup(unsigned int xid, struct cifs_ses *ses,
116 const struct nls_table *nls_cp);
117extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
118extern u64 cifs_UnixTimeToNT(struct timespec);
119extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
120 int offset);
121extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
122
123extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
124 struct file *file, struct tcon_link *tlink,
125 __u32 oplock);
126extern 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);
130void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
131extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
132 FILE_UNIX_BASIC_INFO *info,
133 struct cifs_sb_info *cifs_sb);
134extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
135extern struct inode *cifs_iget(struct super_block *sb,
136 struct cifs_fattr *fattr);
137
138extern int cifs_get_file_info(struct file *filp);
139extern 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);
143extern int cifs_get_file_info_unix(struct file *filp);
144extern int cifs_get_inode_info_unix(struct inode **pinode,
145 const unsigned char *search_path,
146 struct super_block *sb, int xid);
147extern 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);
150extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
151 uid_t, gid_t);
152extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
153 const char *, u32 *);
154extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
155 const char *, int);
156
157extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
158extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
159 unsigned int to_read);
160extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
161 struct kvec *iov_orig, unsigned int nr_segs,
162 unsigned int to_read);
163extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
164 struct cifs_sb_info *cifs_sb);
165extern int cifs_match_super(struct super_block *, void *);
166extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
167extern struct smb_vol *cifs_get_volume_info(char *mount_data,
168 const char *devname);
169extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
170extern void cifs_umount(struct cifs_sb_info *);
171
172#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
173extern void cifs_dfs_release_automount_timer(void);
174#else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
175#define cifs_dfs_release_automount_timer() do { } while (0)
176#endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
177
178void cifs_proc_init(void);
179void cifs_proc_clean(void);
180
181extern int cifs_negotiate_protocol(unsigned int xid,
182 struct cifs_ses *ses);
183extern int cifs_setup_session(unsigned int xid, struct cifs_ses *ses,
184 struct nls_table *nls_info);
185extern int CIFSSMBNegotiate(unsigned int xid, struct cifs_ses *ses);
186
187extern int CIFSTCon(unsigned int xid, struct cifs_ses *ses,
188 const char *tree, struct cifs_tcon *tcon,
189 const struct nls_table *);
190
191extern int CIFSFindFirst(const int xid, struct cifs_tcon *tcon,
192 const char *searchName, const struct nls_table *nls_codepage,
193 __u16 *searchHandle, __u16 search_flags,
194 struct cifs_search_info *psrch_inf,
195 int map, const char dirsep);
196
197extern int CIFSFindNext(const int xid, struct cifs_tcon *tcon,
198 __u16 searchHandle, __u16 search_flags,
199 struct cifs_search_info *psrch_inf);
200
201extern int CIFSFindClose(const int, struct cifs_tcon *tcon,
202 const __u16 search_handle);
203
204extern int CIFSSMBQFileInfo(const int xid, struct cifs_tcon *tcon,
205 u16 netfid, FILE_ALL_INFO *pFindData);
206extern int CIFSSMBQPathInfo(const int xid, struct cifs_tcon *tcon,
207 const unsigned char *searchName,
208 FILE_ALL_INFO *findData,
209 int legacy /* whether to use old info level */,
210 const struct nls_table *nls_codepage, int remap);
211extern int SMBQueryInformation(const int xid, struct cifs_tcon *tcon,
212 const unsigned char *searchName,
213 FILE_ALL_INFO *findData,
214 const struct nls_table *nls_codepage, int remap);
215
216extern int CIFSSMBUnixQFileInfo(const int xid, struct cifs_tcon *tcon,
217 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
218extern int CIFSSMBUnixQPathInfo(const int xid,
219 struct cifs_tcon *tcon,
220 const unsigned char *searchName,
221 FILE_UNIX_BASIC_INFO *pFindData,
222 const struct nls_table *nls_codepage, int remap);
223
224extern int CIFSGetDFSRefer(const int xid, struct cifs_ses *ses,
225 const unsigned char *searchName,
226 struct dfs_info3_param **target_nodes,
227 unsigned int *number_of_nodes_in_array,
228 const struct nls_table *nls_codepage, int remap);
229
230extern int get_dfs_path(int xid, struct cifs_ses *pSesInfo,
231 const char *old_path,
232 const struct nls_table *nls_codepage,
233 unsigned int *pnum_referrals,
234 struct dfs_info3_param **preferrals,
235 int remap);
236extern void reset_cifs_unix_caps(int xid, struct cifs_tcon *tcon,
237 struct cifs_sb_info *cifs_sb,
238 struct smb_vol *vol);
239extern int CIFSSMBQFSInfo(const int xid, struct cifs_tcon *tcon,
240 struct kstatfs *FSData);
241extern int SMBOldQFSInfo(const int xid, struct cifs_tcon *tcon,
242 struct kstatfs *FSData);
243extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifs_tcon *tcon,
244 __u64 cap);
245
246extern int CIFSSMBQFSAttributeInfo(const int xid,
247 struct cifs_tcon *tcon);
248extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifs_tcon *tcon);
249extern int CIFSSMBQFSUnixInfo(const int xid, struct cifs_tcon *tcon);
250extern int CIFSSMBQFSPosixInfo(const int xid, struct cifs_tcon *tcon,
251 struct kstatfs *FSData);
252
253extern int CIFSSMBSetPathInfo(const int xid, struct cifs_tcon *tcon,
254 const char *fileName, const FILE_BASIC_INFO *data,
255 const struct nls_table *nls_codepage,
256 int remap_special_chars);
257extern int CIFSSMBSetFileInfo(const int xid, struct cifs_tcon *tcon,
258 const FILE_BASIC_INFO *data, __u16 fid,
259 __u32 pid_of_opener);
260extern int CIFSSMBSetFileDisposition(const int xid, struct cifs_tcon *tcon,
261 bool delete_file, __u16 fid, __u32 pid_of_opener);
262#if 0
263extern int CIFSSMBSetAttrLegacy(int xid, struct cifs_tcon *tcon,
264 char *fileName, __u16 dos_attributes,
265 const struct nls_table *nls_codepage);
266#endif /* possibly unneeded function */
267extern int CIFSSMBSetEOF(const int xid, struct cifs_tcon *tcon,
268 const char *fileName, __u64 size,
269 bool setAllocationSizeFlag,
270 const struct nls_table *nls_codepage,
271 int remap_special_chars);
272extern int CIFSSMBSetFileSize(const int xid, struct cifs_tcon *tcon,
273 __u64 size, __u16 fileHandle, __u32 opener_pid,
274 bool AllocSizeFlag);
275
276struct cifs_unix_set_info_args {
277 __u64 ctime;
278 __u64 atime;
279 __u64 mtime;
280 __u64 mode;
281 __u64 uid;
282 __u64 gid;
283 dev_t device;
284};
285
286extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
287 const struct cifs_unix_set_info_args *args,
288 u16 fid, u32 pid_of_opener);
289
290extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifs_tcon *pTcon,
291 char *fileName,
292 const struct cifs_unix_set_info_args *args,
293 const struct nls_table *nls_codepage,
294 int remap_special_chars);
295
296extern int CIFSSMBMkDir(const int xid, struct cifs_tcon *tcon,
297 const char *newName,
298 const struct nls_table *nls_codepage,
299 int remap_special_chars);
300extern int CIFSSMBRmDir(const int xid, struct cifs_tcon *tcon,
301 const char *name, const struct nls_table *nls_codepage,
302 int remap_special_chars);
303extern int CIFSPOSIXDelFile(const int xid, struct cifs_tcon *tcon,
304 const char *name, __u16 type,
305 const struct nls_table *nls_codepage,
306 int remap_special_chars);
307extern int CIFSSMBDelFile(const int xid, struct cifs_tcon *tcon,
308 const char *name,
309 const struct nls_table *nls_codepage,
310 int remap_special_chars);
311extern int CIFSSMBRename(const int xid, struct cifs_tcon *tcon,
312 const char *fromName, const char *toName,
313 const struct nls_table *nls_codepage,
314 int remap_special_chars);
315extern int CIFSSMBRenameOpenFile(const int xid, struct cifs_tcon *pTcon,
316 int netfid, const char *target_name,
317 const struct nls_table *nls_codepage,
318 int remap_special_chars);
319extern int CIFSCreateHardLink(const int xid,
320 struct cifs_tcon *tcon,
321 const char *fromName, const char *toName,
322 const struct nls_table *nls_codepage,
323 int remap_special_chars);
324extern int CIFSUnixCreateHardLink(const int xid,
325 struct cifs_tcon *tcon,
326 const char *fromName, const char *toName,
327 const struct nls_table *nls_codepage,
328 int remap_special_chars);
329extern int CIFSUnixCreateSymLink(const int xid,
330 struct cifs_tcon *tcon,
331 const char *fromName, const char *toName,
332 const struct nls_table *nls_codepage);
333extern int CIFSSMBUnixQuerySymLink(const int xid,
334 struct cifs_tcon *tcon,
335 const unsigned char *searchName, char **syminfo,
336 const struct nls_table *nls_codepage);
337#ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
338extern int CIFSSMBQueryReparseLinkInfo(const int xid,
339 struct cifs_tcon *tcon,
340 const unsigned char *searchName,
341 char *symlinkinfo, const int buflen, __u16 fid,
342 const struct nls_table *nls_codepage);
343#endif /* temporarily unused until cifs_symlink fixed */
344extern int CIFSSMBOpen(const int xid, struct cifs_tcon *tcon,
345 const char *fileName, const int disposition,
346 const int access_flags, const int omode,
347 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
348 const struct nls_table *nls_codepage, int remap);
349extern int SMBLegacyOpen(const int xid, struct cifs_tcon *tcon,
350 const char *fileName, const int disposition,
351 const int access_flags, const int omode,
352 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
353 const struct nls_table *nls_codepage, int remap);
354extern int CIFSPOSIXCreate(const int xid, struct cifs_tcon *tcon,
355 u32 posix_flags, __u64 mode, __u16 *netfid,
356 FILE_UNIX_BASIC_INFO *pRetData,
357 __u32 *pOplock, const char *name,
358 const struct nls_table *nls_codepage, int remap);
359extern int CIFSSMBClose(const int xid, struct cifs_tcon *tcon,
360 const int smb_file_id);
361
362extern int CIFSSMBFlush(const int xid, struct cifs_tcon *tcon,
363 const int smb_file_id);
364
365extern int CIFSSMBRead(const int xid, struct cifs_io_parms *io_parms,
366 unsigned int *nbytes, char **buf,
367 int *return_buf_type);
368extern int CIFSSMBWrite(const int xid, struct cifs_io_parms *io_parms,
369 unsigned int *nbytes, const char *buf,
370 const char __user *ubuf, const int long_op);
371extern int CIFSSMBWrite2(const int xid, struct cifs_io_parms *io_parms,
372 unsigned int *nbytes, struct kvec *iov, const int nvec,
373 const int long_op);
374extern int CIFSGetSrvInodeNumber(const int xid, struct cifs_tcon *tcon,
375 const unsigned char *searchName, __u64 *inode_number,
376 const struct nls_table *nls_codepage,
377 int remap_special_chars);
378
379extern int cifs_lockv(const int xid, struct cifs_tcon *tcon, const __u16 netfid,
380 const __u8 lock_type, const __u32 num_unlock,
381 const __u32 num_lock, LOCKING_ANDX_RANGE *buf);
382extern int CIFSSMBLock(const int xid, struct cifs_tcon *tcon,
383 const __u16 netfid, const __u32 netpid, const __u64 len,
384 const __u64 offset, const __u32 numUnlock,
385 const __u32 numLock, const __u8 lockType,
386 const bool waitFlag, const __u8 oplock_level);
387extern int CIFSSMBPosixLock(const int xid, struct cifs_tcon *tcon,
388 const __u16 smb_file_id, const __u32 netpid,
389 const int get_flag, const __u64 len, struct file_lock *,
390 const __u16 lock_type, const bool waitFlag);
391extern int CIFSSMBTDis(const int xid, struct cifs_tcon *tcon);
392extern int CIFSSMBEcho(struct TCP_Server_Info *server);
393extern int CIFSSMBLogoff(const int xid, struct cifs_ses *ses);
394
395extern struct cifs_ses *sesInfoAlloc(void);
396extern void sesInfoFree(struct cifs_ses *);
397extern struct cifs_tcon *tconInfoAlloc(void);
398extern void tconInfoFree(struct cifs_tcon *);
399
400extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
401extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
402 __u32 *);
403extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
404 struct TCP_Server_Info *server,
405 __u32 expected_sequence_number);
406extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
407 const struct nls_table *);
408extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
409extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
410extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
411extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
412extern int calc_seckey(struct cifs_ses *);
413
414#ifdef CONFIG_CIFS_WEAK_PW_HASH
415extern int calc_lanman_hash(const char *password, const char *cryptkey,
416 bool encrypt, char *lnm_session_key);
417#endif /* CIFS_WEAK_PW_HASH */
418#ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
419extern int CIFSSMBNotify(const int xid, struct cifs_tcon *tcon,
420 const int notify_subdirs, const __u16 netfid,
421 __u32 filter, struct file *file, int multishot,
422 const struct nls_table *nls_codepage);
423#endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
424extern int CIFSSMBCopy(int xid,
425 struct cifs_tcon *source_tcon,
426 const char *fromName,
427 const __u16 target_tid,
428 const char *toName, const int flags,
429 const struct nls_table *nls_codepage,
430 int remap_special_chars);
431extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifs_tcon *tcon,
432 const unsigned char *searchName,
433 const unsigned char *ea_name, char *EAData,
434 size_t bufsize, const struct nls_table *nls_codepage,
435 int remap_special_chars);
436extern int CIFSSMBSetEA(const int xid, struct cifs_tcon *tcon,
437 const char *fileName, const char *ea_name,
438 const void *ea_value, const __u16 ea_value_len,
439 const struct nls_table *nls_codepage, int remap_special_chars);
440extern int CIFSSMBGetCIFSACL(const int xid, struct cifs_tcon *tcon,
441 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
442extern int CIFSSMBSetCIFSACL(const int, struct cifs_tcon *, __u16,
443 struct cifs_ntsd *, __u32, int);
444extern int CIFSSMBGetPosixACL(const int xid, struct cifs_tcon *tcon,
445 const unsigned char *searchName,
446 char *acl_inf, const int buflen, const int acl_type,
447 const struct nls_table *nls_codepage, int remap_special_chars);
448extern int CIFSSMBSetPosixACL(const int xid, struct cifs_tcon *tcon,
449 const unsigned char *fileName,
450 const char *local_acl, const int buflen, const int acl_type,
451 const struct nls_table *nls_codepage, int remap_special_chars);
452extern int CIFSGetExtAttr(const int xid, struct cifs_tcon *tcon,
453 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
454extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
455extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
456extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
457 const unsigned char *path,
458 struct cifs_sb_info *cifs_sb, int xid);
459extern int mdfour(unsigned char *, unsigned char *, int);
460extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
461 const struct nls_table *codepage);
462extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
463 unsigned char *p24);
464
465/* asynchronous read support */
466struct cifs_readdata {
467 struct kref refcount;
468 struct list_head list;
469 struct completion done;
470 struct cifsFileInfo *cfile;
471 struct address_space *mapping;
472 __u64 offset;
473 unsigned int bytes;
474 pid_t pid;
475 int result;
476 struct list_head pages;
477 struct work_struct work;
478 int (*marshal_iov) (struct cifs_readdata *rdata,
479 unsigned int remaining);
480 unsigned int nr_iov;
481 struct kvec iov[1];
482};
483
484void cifs_readdata_release(struct kref *refcount);
485int cifs_async_readv(struct cifs_readdata *rdata);
486
487/* asynchronous write support */
488struct cifs_writedata {
489 struct kref refcount;
490 struct list_head list;
491 struct completion done;
492 enum writeback_sync_modes sync_mode;
493 struct work_struct work;
494 struct cifsFileInfo *cfile;
495 __u64 offset;
496 pid_t pid;
497 unsigned int bytes;
498 int result;
499 void (*marshal_iov) (struct kvec *iov,
500 struct cifs_writedata *wdata);
501 unsigned int nr_pages;
502 struct page *pages[1];
503};
504
505int cifs_async_writev(struct cifs_writedata *wdata);
506void cifs_writev_complete(struct work_struct *work);
507struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
508 work_func_t complete);
509void cifs_writedata_release(struct kref *refcount);
510
511#endif /* _CIFSPROTO_H */
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
25struct statfs;
26struct smb_vol;
27struct smb_rqst;
28
29/*
30 *****************************************************************
31 * All Prototypes
32 *****************************************************************
33 */
34
35extern struct smb_hdr *cifs_buf_get(void);
36extern void cifs_buf_release(void *);
37extern struct smb_hdr *cifs_small_buf_get(void);
38extern void cifs_small_buf_release(void *);
39extern void free_rsp_buf(int, void *);
40extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
41 unsigned int /* length */);
42extern unsigned int _get_xid(void);
43extern void _free_xid(unsigned int);
44#define get_xid() \
45({ \
46 unsigned int __xid = _get_xid(); \
47 cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n", \
48 __func__, __xid, \
49 from_kuid(&init_user_ns, current_fsuid())); \
50 __xid; \
51})
52
53#define free_xid(curr_xid) \
54do { \
55 _free_xid(curr_xid); \
56 cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n", \
57 __func__, curr_xid, (int)rc); \
58} while (0)
59extern int init_cifs_idmap(void);
60extern void exit_cifs_idmap(void);
61extern int init_cifs_spnego(void);
62extern void exit_cifs_spnego(void);
63extern char *build_path_from_dentry(struct dentry *);
64extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
65 bool prefix);
66extern char *cifs_build_path_to_root(struct smb_vol *vol,
67 struct cifs_sb_info *cifs_sb,
68 struct cifs_tcon *tcon,
69 int add_treename);
70extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
71extern char *cifs_compose_mount_options(const char *sb_mountdata,
72 const char *fullpath, const struct dfs_info3_param *ref,
73 char **devname);
74/* extern void renew_parental_timestamps(struct dentry *direntry);*/
75extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
76 struct TCP_Server_Info *server);
77extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
78extern void cifs_delete_mid(struct mid_q_entry *mid);
79extern void cifs_wake_up_task(struct mid_q_entry *mid);
80extern int cifs_handle_standard(struct TCP_Server_Info *server,
81 struct mid_q_entry *mid);
82extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
83extern int cifs_call_async(struct TCP_Server_Info *server,
84 struct smb_rqst *rqst,
85 mid_receive_t *receive, mid_callback_t *callback,
86 mid_handle_t *handle, void *cbdata, const int flags);
87extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
88 struct smb_rqst *rqst, int *resp_buf_type,
89 const int flags, struct kvec *resp_iov);
90extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
91 struct smb_hdr * /* input */ ,
92 struct smb_hdr * /* out */ ,
93 int * /* bytes returned */ , const int);
94extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
95 char *in_buf, int flags);
96extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
97 struct smb_rqst *);
98extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
99 struct smb_rqst *);
100extern int cifs_check_receive(struct mid_q_entry *mid,
101 struct TCP_Server_Info *server, bool log_error);
102extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
103 unsigned int size, unsigned int *num,
104 unsigned int *credits);
105extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
106 struct kvec *, int /* nvec to send */,
107 int * /* type of buf returned */, const int flags,
108 struct kvec * /* resp vec */);
109extern int smb2_send_recv(const unsigned int xid, struct cifs_ses *pses,
110 struct kvec *pkvec, int nvec_to_send,
111 int *pbuftype, const int flags,
112 struct kvec *presp);
113extern int SendReceiveBlockingLock(const unsigned int xid,
114 struct cifs_tcon *ptcon,
115 struct smb_hdr *in_buf ,
116 struct smb_hdr *out_buf,
117 int *bytes_returned);
118extern int cifs_reconnect(struct TCP_Server_Info *server);
119extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
120extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
121extern bool backup_cred(struct cifs_sb_info *);
122extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
123extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
124 unsigned int bytes_written);
125extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
126extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
127extern unsigned int smbCalcSize(void *buf);
128extern int decode_negTokenInit(unsigned char *security_blob, int length,
129 struct TCP_Server_Info *server);
130extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
131extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
132extern int map_smb_to_linux_error(char *buf, bool logErr);
133extern void header_assemble(struct smb_hdr *, char /* command */ ,
134 const struct cifs_tcon *, int /* length of
135 fixed section (word count) in two byte units */);
136extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
137 struct cifs_ses *ses,
138 void **request_buf);
139extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
140 enum securityEnum requested);
141extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
142 const struct nls_table *nls_cp);
143extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
144extern u64 cifs_UnixTimeToNT(struct timespec);
145extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
146 int offset);
147extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
148extern int cifs_get_writer(struct cifsInodeInfo *cinode);
149extern void cifs_put_writer(struct cifsInodeInfo *cinode);
150extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
151extern int cifs_unlock_range(struct cifsFileInfo *cfile,
152 struct file_lock *flock, const unsigned int xid);
153extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
154
155extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
156 struct file *file,
157 struct tcon_link *tlink,
158 __u32 oplock);
159extern int cifs_posix_open(char *full_path, struct inode **inode,
160 struct super_block *sb, int mode,
161 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
162 unsigned int xid);
163void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
164extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
165 FILE_UNIX_BASIC_INFO *info,
166 struct cifs_sb_info *cifs_sb);
167extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
168 struct cifs_sb_info *);
169extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
170extern struct inode *cifs_iget(struct super_block *sb,
171 struct cifs_fattr *fattr);
172
173extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
174 FILE_ALL_INFO *data, struct super_block *sb,
175 int xid, const struct cifs_fid *fid);
176extern int cifs_get_inode_info_unix(struct inode **pinode,
177 const unsigned char *search_path,
178 struct super_block *sb, unsigned int xid);
179extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
180 unsigned int xid, char *full_path, __u32 dosattr);
181extern int cifs_rename_pending_delete(const char *full_path,
182 struct dentry *dentry,
183 const unsigned int xid);
184extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
185 struct cifs_fattr *fattr, struct inode *inode,
186 const char *path, const struct cifs_fid *pfid);
187extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
188 kuid_t, kgid_t);
189extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
190 const char *, u32 *);
191extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
192 const struct cifs_fid *, u32 *);
193extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
194 const char *, int);
195
196extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
197extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
198 unsigned int to_read);
199extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
200 struct page *page, unsigned int to_read);
201extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
202 struct cifs_sb_info *cifs_sb);
203extern int cifs_match_super(struct super_block *, void *);
204extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
205extern struct smb_vol *cifs_get_volume_info(char *mount_data,
206 const char *devname);
207extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
208extern void cifs_umount(struct cifs_sb_info *);
209extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
210extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
211
212extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
213 __u64 length, __u8 type,
214 struct cifsLockInfo **conf_lock,
215 int rw_check);
216extern void cifs_add_pending_open(struct cifs_fid *fid,
217 struct tcon_link *tlink,
218 struct cifs_pending_open *open);
219extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
220 struct tcon_link *tlink,
221 struct cifs_pending_open *open);
222extern void cifs_del_pending_open(struct cifs_pending_open *open);
223extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
224 int from_reconnect);
225extern void cifs_put_tcon(struct cifs_tcon *tcon);
226
227#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
228extern void cifs_dfs_release_automount_timer(void);
229#else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
230#define cifs_dfs_release_automount_timer() do { } while (0)
231#endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
232
233void cifs_proc_init(void);
234void cifs_proc_clean(void);
235
236extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
237extern void cifs_free_llist(struct list_head *llist);
238extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
239
240extern int cifs_negotiate_protocol(const unsigned int xid,
241 struct cifs_ses *ses);
242extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
243 struct nls_table *nls_info);
244extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
245extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
246
247extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
248 const char *tree, struct cifs_tcon *tcon,
249 const struct nls_table *);
250
251extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
252 const char *searchName, struct cifs_sb_info *cifs_sb,
253 __u16 *searchHandle, __u16 search_flags,
254 struct cifs_search_info *psrch_inf,
255 bool msearch);
256
257extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
258 __u16 searchHandle, __u16 search_flags,
259 struct cifs_search_info *psrch_inf);
260
261extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
262 const __u16 search_handle);
263
264extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
265 u16 netfid, FILE_ALL_INFO *pFindData);
266extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
267 const char *search_Name, FILE_ALL_INFO *data,
268 int legacy /* whether to use old info level */,
269 const struct nls_table *nls_codepage, int remap);
270extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
271 const char *search_name, FILE_ALL_INFO *data,
272 const struct nls_table *nls_codepage, int remap);
273
274extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
275 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
276extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
277 struct cifs_tcon *tcon,
278 const unsigned char *searchName,
279 FILE_UNIX_BASIC_INFO *pFindData,
280 const struct nls_table *nls_codepage, int remap);
281
282extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
283 const char *search_name,
284 struct dfs_info3_param **target_nodes,
285 unsigned int *num_of_nodes,
286 const struct nls_table *nls_codepage, int remap);
287
288extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
289 const char *old_path,
290 const struct nls_table *nls_codepage,
291 unsigned int *num_referrals,
292 struct dfs_info3_param **referrals, int remap);
293extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
294 unsigned int *num_of_nodes,
295 struct dfs_info3_param **target_nodes,
296 const struct nls_table *nls_codepage, int remap,
297 const char *searchName, bool is_unicode);
298extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
299 struct cifs_sb_info *cifs_sb,
300 struct smb_vol *vol);
301extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
302 struct kstatfs *FSData);
303extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
304 struct kstatfs *FSData);
305extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
306 __u64 cap);
307
308extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
309 struct cifs_tcon *tcon);
310extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
311extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
312extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
313 struct kstatfs *FSData);
314
315extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
316 const char *fileName, const FILE_BASIC_INFO *data,
317 const struct nls_table *nls_codepage,
318 int remap_special_chars);
319extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
320 const FILE_BASIC_INFO *data, __u16 fid,
321 __u32 pid_of_opener);
322extern int CIFSSMBSetFileDisposition(const unsigned int xid,
323 struct cifs_tcon *tcon,
324 bool delete_file, __u16 fid,
325 __u32 pid_of_opener);
326#if 0
327extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
328 char *fileName, __u16 dos_attributes,
329 const struct nls_table *nls_codepage);
330#endif /* possibly unneeded function */
331extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
332 const char *file_name, __u64 size,
333 struct cifs_sb_info *cifs_sb, bool set_allocation);
334extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
335 struct cifsFileInfo *cfile, __u64 size,
336 bool set_allocation);
337
338struct cifs_unix_set_info_args {
339 __u64 ctime;
340 __u64 atime;
341 __u64 mtime;
342 __u64 mode;
343 kuid_t uid;
344 kgid_t gid;
345 dev_t device;
346};
347
348extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
349 struct cifs_tcon *tcon,
350 const struct cifs_unix_set_info_args *args,
351 u16 fid, u32 pid_of_opener);
352
353extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
354 struct cifs_tcon *tcon, const char *file_name,
355 const struct cifs_unix_set_info_args *args,
356 const struct nls_table *nls_codepage,
357 int remap);
358
359extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
360 const char *name, struct cifs_sb_info *cifs_sb);
361extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
362 const char *name, struct cifs_sb_info *cifs_sb);
363extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
364 const char *name, __u16 type,
365 const struct nls_table *nls_codepage,
366 int remap_special_chars);
367extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
368 const char *name, struct cifs_sb_info *cifs_sb);
369extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
370 const char *from_name, const char *to_name,
371 struct cifs_sb_info *cifs_sb);
372extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
373 int netfid, const char *target_name,
374 const struct nls_table *nls_codepage,
375 int remap_special_chars);
376extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
377 const char *from_name, const char *to_name,
378 struct cifs_sb_info *cifs_sb);
379extern int CIFSUnixCreateHardLink(const unsigned int xid,
380 struct cifs_tcon *tcon,
381 const char *fromName, const char *toName,
382 const struct nls_table *nls_codepage,
383 int remap_special_chars);
384extern int CIFSUnixCreateSymLink(const unsigned int xid,
385 struct cifs_tcon *tcon,
386 const char *fromName, const char *toName,
387 const struct nls_table *nls_codepage, int remap);
388extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
389 struct cifs_tcon *tcon,
390 const unsigned char *searchName, char **syminfo,
391 const struct nls_table *nls_codepage, int remap);
392extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
393 __u16 fid, char **symlinkinfo,
394 const struct nls_table *nls_codepage);
395extern int CIFSSMB_set_compression(const unsigned int xid,
396 struct cifs_tcon *tcon, __u16 fid);
397extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
398 int *oplock, FILE_ALL_INFO *buf);
399extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
400 const char *fileName, const int disposition,
401 const int access_flags, const int omode,
402 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
403 const struct nls_table *nls_codepage, int remap);
404extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
405 u32 posix_flags, __u64 mode, __u16 *netfid,
406 FILE_UNIX_BASIC_INFO *pRetData,
407 __u32 *pOplock, const char *name,
408 const struct nls_table *nls_codepage, int remap);
409extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
410 const int smb_file_id);
411
412extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
413 const int smb_file_id);
414
415extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
416 unsigned int *nbytes, char **buf,
417 int *return_buf_type);
418extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
419 unsigned int *nbytes, const char *buf);
420extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
421 unsigned int *nbytes, struct kvec *iov, const int nvec);
422extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
423 const char *search_name, __u64 *inode_number,
424 const struct nls_table *nls_codepage,
425 int remap);
426
427extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
428 const __u16 netfid, const __u8 lock_type,
429 const __u32 num_unlock, const __u32 num_lock,
430 LOCKING_ANDX_RANGE *buf);
431extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
432 const __u16 netfid, const __u32 netpid, const __u64 len,
433 const __u64 offset, const __u32 numUnlock,
434 const __u32 numLock, const __u8 lockType,
435 const bool waitFlag, const __u8 oplock_level);
436extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
437 const __u16 smb_file_id, const __u32 netpid,
438 const loff_t start_offset, const __u64 len,
439 struct file_lock *, const __u16 lock_type,
440 const bool waitFlag);
441extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
442extern int CIFSSMBEcho(struct TCP_Server_Info *server);
443extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
444
445extern struct cifs_ses *sesInfoAlloc(void);
446extern void sesInfoFree(struct cifs_ses *);
447extern struct cifs_tcon *tconInfoAlloc(void);
448extern void tconInfoFree(struct cifs_tcon *);
449
450extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
451 __u32 *pexpected_response_sequence_number);
452extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
453 __u32 *);
454extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
455extern int cifs_verify_signature(struct smb_rqst *rqst,
456 struct TCP_Server_Info *server,
457 __u32 expected_sequence_number);
458extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
459 const struct nls_table *);
460extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
461extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
462extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
463extern int calc_seckey(struct cifs_ses *);
464extern int generate_smb30signingkey(struct cifs_ses *);
465extern int generate_smb311signingkey(struct cifs_ses *);
466
467#ifdef CONFIG_CIFS_WEAK_PW_HASH
468extern int calc_lanman_hash(const char *password, const char *cryptkey,
469 bool encrypt, char *lnm_session_key);
470#endif /* CIFS_WEAK_PW_HASH */
471#ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
472extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
473 const int notify_subdirs, const __u16 netfid,
474 __u32 filter, struct file *file, int multishot,
475 const struct nls_table *nls_codepage);
476#endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
477extern int CIFSSMBCopy(unsigned int xid,
478 struct cifs_tcon *source_tcon,
479 const char *fromName,
480 const __u16 target_tid,
481 const char *toName, const int flags,
482 const struct nls_table *nls_codepage,
483 int remap_special_chars);
484extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
485 const unsigned char *searchName,
486 const unsigned char *ea_name, char *EAData,
487 size_t bufsize, struct cifs_sb_info *cifs_sb);
488extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
489 const char *fileName, const char *ea_name,
490 const void *ea_value, const __u16 ea_value_len,
491 const struct nls_table *nls_codepage,
492 struct cifs_sb_info *cifs_sb);
493extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
494 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
495extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
496 struct cifs_ntsd *, __u32, int);
497extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
498 const unsigned char *searchName,
499 char *acl_inf, const int buflen, const int acl_type,
500 const struct nls_table *nls_codepage, int remap_special_chars);
501extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
502 const unsigned char *fileName,
503 const char *local_acl, const int buflen, const int acl_type,
504 const struct nls_table *nls_codepage, int remap_special_chars);
505extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
506 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
507extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
508extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
509extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
510 struct cifs_sb_info *cifs_sb,
511 struct cifs_fattr *fattr,
512 const unsigned char *path);
513extern int mdfour(unsigned char *, unsigned char *, int);
514extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
515 const struct nls_table *codepage);
516extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
517 unsigned char *p24);
518
519void cifs_readdata_release(struct kref *refcount);
520int cifs_async_readv(struct cifs_readdata *rdata);
521int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
522
523int cifs_async_writev(struct cifs_writedata *wdata,
524 void (*release)(struct kref *kref));
525void cifs_writev_complete(struct work_struct *work);
526struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
527 work_func_t complete);
528void cifs_writedata_release(struct kref *refcount);
529int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
530 struct cifs_sb_info *cifs_sb,
531 const unsigned char *path, char *pbuf,
532 unsigned int *pbytes_read);
533int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
534 struct cifs_sb_info *cifs_sb,
535 const unsigned char *path, char *pbuf,
536 unsigned int *pbytes_written);
537int __cifs_calc_signature(struct smb_rqst *rqst,
538 struct TCP_Server_Info *server, char *signature,
539 struct shash_desc *shash);
540enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
541 enum securityEnum);
542struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
543void cifs_aio_ctx_release(struct kref *refcount);
544int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
545
546int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
547 struct sdesc **sdesc);
548void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
549
550#endif /* _CIFSPROTO_H */