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 #include "trace.h"
25 #ifdef CONFIG_CIFS_DFS_UPCALL
26 #include "dfs_cache.h"
27 #endif
28
29 struct statfs;
30 struct smb_vol;
31 struct smb_rqst;
32
33 /*
34 *****************************************************************
35 * All Prototypes
36 *****************************************************************
37 */
38
39 extern struct smb_hdr *cifs_buf_get(void);
40 extern void cifs_buf_release(void *);
41 extern struct smb_hdr *cifs_small_buf_get(void);
42 extern void cifs_small_buf_release(void *);
43 extern void free_rsp_buf(int, void *);
44 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
45 unsigned int /* length */);
46 extern unsigned int _get_xid(void);
47 extern void _free_xid(unsigned int);
48 #define get_xid() \
49 ({ \
50 unsigned int __xid = _get_xid(); \
51 cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n", \
52 __func__, __xid, \
53 from_kuid(&init_user_ns, current_fsuid())); \
54 trace_smb3_enter(__xid, __func__); \
55 __xid; \
56 })
57
58 #define free_xid(curr_xid) \
59 do { \
60 _free_xid(curr_xid); \
61 cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n", \
62 __func__, curr_xid, (int)rc); \
63 if (rc) \
64 trace_smb3_exit_err(curr_xid, __func__, (int)rc); \
65 else \
66 trace_smb3_exit_done(curr_xid, __func__); \
67 } while (0)
68 extern int init_cifs_idmap(void);
69 extern void exit_cifs_idmap(void);
70 extern int init_cifs_spnego(void);
71 extern void exit_cifs_spnego(void);
72 extern char *build_path_from_dentry(struct dentry *);
73 extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
74 bool prefix);
75 extern char *cifs_build_path_to_root(struct smb_vol *vol,
76 struct cifs_sb_info *cifs_sb,
77 struct cifs_tcon *tcon,
78 int add_treename);
79 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
80 extern char *cifs_compose_mount_options(const char *sb_mountdata,
81 const char *fullpath, const struct dfs_info3_param *ref,
82 char **devname);
83 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
84 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
85 struct TCP_Server_Info *server);
86 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
87 extern void cifs_delete_mid(struct mid_q_entry *mid);
88 extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
89 extern void cifs_wake_up_task(struct mid_q_entry *mid);
90 extern int cifs_handle_standard(struct TCP_Server_Info *server,
91 struct mid_q_entry *mid);
92 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
93 extern int cifs_call_async(struct TCP_Server_Info *server,
94 struct smb_rqst *rqst,
95 mid_receive_t *receive, mid_callback_t *callback,
96 mid_handle_t *handle, void *cbdata, const int flags,
97 const struct cifs_credits *exist_credits);
98 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
99 struct smb_rqst *rqst, int *resp_buf_type,
100 const int flags, struct kvec *resp_iov);
101 extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
102 const int flags, const int num_rqst,
103 struct smb_rqst *rqst, int *resp_buf_type,
104 struct kvec *resp_iov);
105 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
106 struct smb_hdr * /* input */ ,
107 struct smb_hdr * /* out */ ,
108 int * /* bytes returned */ , const int);
109 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
110 char *in_buf, int flags);
111 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
112 struct smb_rqst *);
113 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
114 struct smb_rqst *);
115 extern int cifs_check_receive(struct mid_q_entry *mid,
116 struct TCP_Server_Info *server, bool log_error);
117 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
118 unsigned int size, unsigned int *num,
119 struct cifs_credits *credits);
120 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
121 struct kvec *, int /* nvec to send */,
122 int * /* type of buf returned */, const int flags,
123 struct kvec * /* resp vec */);
124 extern int SendReceiveBlockingLock(const unsigned int xid,
125 struct cifs_tcon *ptcon,
126 struct smb_hdr *in_buf ,
127 struct smb_hdr *out_buf,
128 int *bytes_returned);
129 extern int cifs_reconnect(struct TCP_Server_Info *server);
130 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
131 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
132 extern bool backup_cred(struct cifs_sb_info *);
133 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
134 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
135 unsigned int bytes_written);
136 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
137 extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
138 bool fsuid_only,
139 struct cifsFileInfo **ret_file);
140 extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
141 struct cifsFileInfo **ret_file);
142 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
143 extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
144 struct cifsFileInfo **ret_file);
145 extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
146 extern int decode_negTokenInit(unsigned char *security_blob, int length,
147 struct TCP_Server_Info *server);
148 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
149 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
150 extern int map_smb_to_linux_error(char *buf, bool logErr);
151 extern void header_assemble(struct smb_hdr *, char /* command */ ,
152 const struct cifs_tcon *, int /* length of
153 fixed section (word count) in two byte units */);
154 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
155 struct cifs_ses *ses,
156 void **request_buf);
157 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
158 enum securityEnum requested);
159 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
160 const struct nls_table *nls_cp);
161 extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
162 extern u64 cifs_UnixTimeToNT(struct timespec64);
163 extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
164 int offset);
165 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
166 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
167 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
168 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
169 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
170 struct file_lock *flock, const unsigned int xid);
171 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
172
173 extern void cifs_down_write(struct rw_semaphore *sem);
174 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
175 struct file *file,
176 struct tcon_link *tlink,
177 __u32 oplock);
178 extern int cifs_posix_open(char *full_path, struct inode **inode,
179 struct super_block *sb, int mode,
180 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
181 unsigned int xid);
182 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
183 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
184 FILE_UNIX_BASIC_INFO *info,
185 struct cifs_sb_info *cifs_sb);
186 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
187 struct cifs_sb_info *);
188 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
189 extern struct inode *cifs_iget(struct super_block *sb,
190 struct cifs_fattr *fattr);
191
192 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
193 FILE_ALL_INFO *data, struct super_block *sb,
194 int xid, const struct cifs_fid *fid);
195 extern int cifs_get_inode_info_unix(struct inode **pinode,
196 const unsigned char *search_path,
197 struct super_block *sb, unsigned int xid);
198 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
199 unsigned int xid, char *full_path, __u32 dosattr);
200 extern int cifs_rename_pending_delete(const char *full_path,
201 struct dentry *dentry,
202 const unsigned int xid);
203 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
204 struct cifs_fattr *fattr, struct inode *inode,
205 bool get_mode_from_special_sid,
206 const char *path, const struct cifs_fid *pfid);
207 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
208 kuid_t, kgid_t);
209 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
210 const char *, u32 *);
211 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
212 const struct cifs_fid *, u32 *);
213 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
214 const char *, int);
215
216 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
217 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
218 unsigned int to_read);
219 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
220 struct page *page,
221 unsigned int page_offset,
222 unsigned int to_read);
223 extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
224 struct cifs_sb_info *cifs_sb);
225 extern int cifs_match_super(struct super_block *, void *);
226 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
227 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
228 const char *devname, bool is_smb3);
229 extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *vol);
230 extern void cifs_umount(struct cifs_sb_info *);
231 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
232 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
233
234 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
235 __u64 length, __u8 type, __u16 flags,
236 struct cifsLockInfo **conf_lock,
237 int rw_check);
238 extern void cifs_add_pending_open(struct cifs_fid *fid,
239 struct tcon_link *tlink,
240 struct cifs_pending_open *open);
241 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
242 struct tcon_link *tlink,
243 struct cifs_pending_open *open);
244 extern void cifs_del_pending_open(struct cifs_pending_open *open);
245 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
246 int from_reconnect);
247 extern void cifs_put_tcon(struct cifs_tcon *tcon);
248
249 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
250 extern void cifs_dfs_release_automount_timer(void);
251 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
252 #define cifs_dfs_release_automount_timer() do { } while (0)
253 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
254
255 void cifs_proc_init(void);
256 void cifs_proc_clean(void);
257
258 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
259 extern void cifs_free_llist(struct list_head *llist);
260 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
261
262 extern int cifs_negotiate_protocol(const unsigned int xid,
263 struct cifs_ses *ses);
264 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
265 struct nls_table *nls_info);
266 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
267 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
268
269 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
270 const char *tree, struct cifs_tcon *tcon,
271 const struct nls_table *);
272
273 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
274 const char *searchName, struct cifs_sb_info *cifs_sb,
275 __u16 *searchHandle, __u16 search_flags,
276 struct cifs_search_info *psrch_inf,
277 bool msearch);
278
279 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
280 __u16 searchHandle, __u16 search_flags,
281 struct cifs_search_info *psrch_inf);
282
283 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
284 const __u16 search_handle);
285
286 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
287 u16 netfid, FILE_ALL_INFO *pFindData);
288 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
289 const char *search_Name, FILE_ALL_INFO *data,
290 int legacy /* whether to use old info level */,
291 const struct nls_table *nls_codepage, int remap);
292 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
293 const char *search_name, FILE_ALL_INFO *data,
294 const struct nls_table *nls_codepage, int remap);
295
296 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
297 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
298 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
299 struct cifs_tcon *tcon,
300 const unsigned char *searchName,
301 FILE_UNIX_BASIC_INFO *pFindData,
302 const struct nls_table *nls_codepage, int remap);
303
304 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
305 const char *search_name,
306 struct dfs_info3_param **target_nodes,
307 unsigned int *num_of_nodes,
308 const struct nls_table *nls_codepage, int remap);
309
310 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
311 unsigned int *num_of_nodes,
312 struct dfs_info3_param **target_nodes,
313 const struct nls_table *nls_codepage, int remap,
314 const char *searchName, bool is_unicode);
315 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
316 struct cifs_sb_info *cifs_sb,
317 struct smb_vol *vol);
318 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
319 struct kstatfs *FSData);
320 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
321 struct kstatfs *FSData);
322 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
323 __u64 cap);
324
325 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
326 struct cifs_tcon *tcon);
327 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
328 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
329 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
330 struct kstatfs *FSData);
331
332 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
333 const char *fileName, const FILE_BASIC_INFO *data,
334 const struct nls_table *nls_codepage,
335 int remap_special_chars);
336 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
337 const FILE_BASIC_INFO *data, __u16 fid,
338 __u32 pid_of_opener);
339 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
340 struct cifs_tcon *tcon,
341 bool delete_file, __u16 fid,
342 __u32 pid_of_opener);
343 #if 0
344 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
345 char *fileName, __u16 dos_attributes,
346 const struct nls_table *nls_codepage);
347 #endif /* possibly unneeded function */
348 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
349 const char *file_name, __u64 size,
350 struct cifs_sb_info *cifs_sb, bool set_allocation);
351 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
352 struct cifsFileInfo *cfile, __u64 size,
353 bool set_allocation);
354
355 struct cifs_unix_set_info_args {
356 __u64 ctime;
357 __u64 atime;
358 __u64 mtime;
359 __u64 mode;
360 kuid_t uid;
361 kgid_t gid;
362 dev_t device;
363 };
364
365 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
366 struct cifs_tcon *tcon,
367 const struct cifs_unix_set_info_args *args,
368 u16 fid, u32 pid_of_opener);
369
370 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
371 struct cifs_tcon *tcon, const char *file_name,
372 const struct cifs_unix_set_info_args *args,
373 const struct nls_table *nls_codepage,
374 int remap);
375
376 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
377 umode_t mode, struct cifs_tcon *tcon,
378 const char *name, struct cifs_sb_info *cifs_sb);
379 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
380 const char *name, struct cifs_sb_info *cifs_sb);
381 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
382 const char *name, __u16 type,
383 const struct nls_table *nls_codepage,
384 int remap_special_chars);
385 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
386 const char *name, struct cifs_sb_info *cifs_sb);
387 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
388 const char *from_name, const char *to_name,
389 struct cifs_sb_info *cifs_sb);
390 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
391 int netfid, const char *target_name,
392 const struct nls_table *nls_codepage,
393 int remap_special_chars);
394 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
395 const char *from_name, const char *to_name,
396 struct cifs_sb_info *cifs_sb);
397 extern int CIFSUnixCreateHardLink(const unsigned int xid,
398 struct cifs_tcon *tcon,
399 const char *fromName, const char *toName,
400 const struct nls_table *nls_codepage,
401 int remap_special_chars);
402 extern int CIFSUnixCreateSymLink(const unsigned int xid,
403 struct cifs_tcon *tcon,
404 const char *fromName, const char *toName,
405 const struct nls_table *nls_codepage, int remap);
406 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
407 struct cifs_tcon *tcon,
408 const unsigned char *searchName, char **syminfo,
409 const struct nls_table *nls_codepage, int remap);
410 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
411 __u16 fid, char **symlinkinfo,
412 const struct nls_table *nls_codepage);
413 extern int CIFSSMB_set_compression(const unsigned int xid,
414 struct cifs_tcon *tcon, __u16 fid);
415 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
416 int *oplock, FILE_ALL_INFO *buf);
417 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
418 const char *fileName, const int disposition,
419 const int access_flags, const int omode,
420 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
421 const struct nls_table *nls_codepage, int remap);
422 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
423 u32 posix_flags, __u64 mode, __u16 *netfid,
424 FILE_UNIX_BASIC_INFO *pRetData,
425 __u32 *pOplock, const char *name,
426 const struct nls_table *nls_codepage, int remap);
427 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
428 const int smb_file_id);
429
430 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
431 const int smb_file_id);
432
433 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
434 unsigned int *nbytes, char **buf,
435 int *return_buf_type);
436 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
437 unsigned int *nbytes, const char *buf);
438 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
439 unsigned int *nbytes, struct kvec *iov, const int nvec);
440 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
441 const char *search_name, __u64 *inode_number,
442 const struct nls_table *nls_codepage,
443 int remap);
444
445 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
446 const __u16 netfid, const __u8 lock_type,
447 const __u32 num_unlock, const __u32 num_lock,
448 LOCKING_ANDX_RANGE *buf);
449 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
450 const __u16 netfid, const __u32 netpid, const __u64 len,
451 const __u64 offset, const __u32 numUnlock,
452 const __u32 numLock, const __u8 lockType,
453 const bool waitFlag, const __u8 oplock_level);
454 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
455 const __u16 smb_file_id, const __u32 netpid,
456 const loff_t start_offset, const __u64 len,
457 struct file_lock *, const __u16 lock_type,
458 const bool waitFlag);
459 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
460 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
461 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
462
463 extern struct cifs_ses *sesInfoAlloc(void);
464 extern void sesInfoFree(struct cifs_ses *);
465 extern struct cifs_tcon *tconInfoAlloc(void);
466 extern void tconInfoFree(struct cifs_tcon *);
467
468 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
469 __u32 *pexpected_response_sequence_number);
470 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
471 __u32 *);
472 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
473 extern int cifs_verify_signature(struct smb_rqst *rqst,
474 struct TCP_Server_Info *server,
475 __u32 expected_sequence_number);
476 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
477 const struct nls_table *);
478 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
479 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
480 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
481 extern int calc_seckey(struct cifs_ses *);
482 extern int generate_smb30signingkey(struct cifs_ses *);
483 extern int generate_smb311signingkey(struct cifs_ses *);
484
485 #ifdef CONFIG_CIFS_WEAK_PW_HASH
486 extern int calc_lanman_hash(const char *password, const char *cryptkey,
487 bool encrypt, char *lnm_session_key);
488 #endif /* CIFS_WEAK_PW_HASH */
489 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
490 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
491 const int notify_subdirs, const __u16 netfid,
492 __u32 filter, struct file *file, int multishot,
493 const struct nls_table *nls_codepage);
494 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
495 extern int CIFSSMBCopy(unsigned int xid,
496 struct cifs_tcon *source_tcon,
497 const char *fromName,
498 const __u16 target_tid,
499 const char *toName, const int flags,
500 const struct nls_table *nls_codepage,
501 int remap_special_chars);
502 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
503 const unsigned char *searchName,
504 const unsigned char *ea_name, char *EAData,
505 size_t bufsize, struct cifs_sb_info *cifs_sb);
506 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
507 const char *fileName, const char *ea_name,
508 const void *ea_value, const __u16 ea_value_len,
509 const struct nls_table *nls_codepage,
510 struct cifs_sb_info *cifs_sb);
511 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
512 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
513 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
514 struct cifs_ntsd *, __u32, int);
515 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
516 const unsigned char *searchName,
517 char *acl_inf, const int buflen, const int acl_type,
518 const struct nls_table *nls_codepage, int remap_special_chars);
519 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
520 const unsigned char *fileName,
521 const char *local_acl, const int buflen, const int acl_type,
522 const struct nls_table *nls_codepage, int remap_special_chars);
523 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
524 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
525 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
526 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
527 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
528 struct cifs_sb_info *cifs_sb,
529 struct cifs_fattr *fattr,
530 const unsigned char *path);
531 extern int mdfour(unsigned char *, unsigned char *, int);
532 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
533 const struct nls_table *codepage);
534 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
535 unsigned char *p24);
536
537 extern int
538 cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data,
539 const char *devname, bool is_smb3);
540 extern void
541 cifs_cleanup_volume_info_contents(struct smb_vol *volume_info);
542
543 extern struct TCP_Server_Info *
544 cifs_find_tcp_session(struct smb_vol *vol);
545
546 extern void cifs_put_smb_ses(struct cifs_ses *ses);
547
548 extern struct cifs_ses *
549 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info);
550
551 void cifs_readdata_release(struct kref *refcount);
552 int cifs_async_readv(struct cifs_readdata *rdata);
553 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
554
555 int cifs_async_writev(struct cifs_writedata *wdata,
556 void (*release)(struct kref *kref));
557 void cifs_writev_complete(struct work_struct *work);
558 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
559 work_func_t complete);
560 struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
561 work_func_t complete);
562 void cifs_writedata_release(struct kref *refcount);
563 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
564 struct cifs_sb_info *cifs_sb,
565 const unsigned char *path, char *pbuf,
566 unsigned int *pbytes_read);
567 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
568 struct cifs_sb_info *cifs_sb,
569 const unsigned char *path, char *pbuf,
570 unsigned int *pbytes_written);
571 int __cifs_calc_signature(struct smb_rqst *rqst,
572 struct TCP_Server_Info *server, char *signature,
573 struct shash_desc *shash);
574 enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
575 enum securityEnum);
576 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
577 void cifs_aio_ctx_release(struct kref *refcount);
578 int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
579 void smb2_cached_lease_break(struct work_struct *work);
580
581 int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
582 struct sdesc **sdesc);
583 void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
584
585 extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
586 unsigned int *len, unsigned int *offset);
587
588 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
589 int copy_path_name(char *dst, const char *src);
590
591 #ifdef CONFIG_CIFS_DFS_UPCALL
get_dfs_path(const unsigned int xid,struct cifs_ses * ses,const char * old_path,const struct nls_table * nls_codepage,struct dfs_info3_param * referral,int remap)592 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
593 const char *old_path,
594 const struct nls_table *nls_codepage,
595 struct dfs_info3_param *referral, int remap)
596 {
597 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
598 referral, NULL);
599 }
600 #endif
601
602 #endif /* _CIFSPROTO_H */
603