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_rqst;
31 struct smb3_fs_context;
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, "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, "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 const char *build_path_from_dentry(struct dentry *, void *);
73 extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
74 void *page, bool prefix);
alloc_dentry_path(void)75 static inline void *alloc_dentry_path(void)
76 {
77 return __getname();
78 }
79
free_dentry_path(void * page)80 static inline void free_dentry_path(void *page)
81 {
82 if (page)
83 __putname(page);
84 }
85
86 extern char *cifs_build_path_to_root(struct smb3_fs_context *ctx,
87 struct cifs_sb_info *cifs_sb,
88 struct cifs_tcon *tcon,
89 int add_treename);
90 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
91 extern char *cifs_compose_mount_options(const char *sb_mountdata,
92 const char *fullpath, const struct dfs_info3_param *ref,
93 char **devname);
94 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
95 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
96 struct TCP_Server_Info *server);
97 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
98 extern void cifs_delete_mid(struct mid_q_entry *mid);
99 extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
100 extern void cifs_wake_up_task(struct mid_q_entry *mid);
101 extern int cifs_handle_standard(struct TCP_Server_Info *server,
102 struct mid_q_entry *mid);
103 extern int smb3_parse_devname(const char *devname, struct smb3_fs_context *ctx);
104 extern int smb3_parse_opt(const char *options, const char *key, char **val);
105 extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);
106 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
107 extern int cifs_call_async(struct TCP_Server_Info *server,
108 struct smb_rqst *rqst,
109 mid_receive_t *receive, mid_callback_t *callback,
110 mid_handle_t *handle, void *cbdata, const int flags,
111 const struct cifs_credits *exist_credits);
112 extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);
113 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
114 struct TCP_Server_Info *server,
115 struct smb_rqst *rqst, int *resp_buf_type,
116 const int flags, struct kvec *resp_iov);
117 extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
118 struct TCP_Server_Info *server,
119 const int flags, const int num_rqst,
120 struct smb_rqst *rqst, int *resp_buf_type,
121 struct kvec *resp_iov);
122 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
123 struct smb_hdr * /* input */ ,
124 struct smb_hdr * /* out */ ,
125 int * /* bytes returned */ , const int);
126 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
127 char *in_buf, int flags);
128 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
129 struct TCP_Server_Info *,
130 struct smb_rqst *);
131 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
132 struct smb_rqst *);
133 extern int cifs_check_receive(struct mid_q_entry *mid,
134 struct TCP_Server_Info *server, bool log_error);
135 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
136 unsigned int size, unsigned int *num,
137 struct cifs_credits *credits);
138 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
139 struct kvec *, int /* nvec to send */,
140 int * /* type of buf returned */, const int flags,
141 struct kvec * /* resp vec */);
142 extern int SendReceiveBlockingLock(const unsigned int xid,
143 struct cifs_tcon *ptcon,
144 struct smb_hdr *in_buf ,
145 struct smb_hdr *out_buf,
146 int *bytes_returned);
147 extern int cifs_reconnect(struct TCP_Server_Info *server);
148 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
149 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
150 extern bool backup_cred(struct cifs_sb_info *);
151 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
152 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
153 unsigned int bytes_written);
154 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
155 extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
156 int flags,
157 struct cifsFileInfo **ret_file);
158 extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
159 int flags,
160 struct cifsFileInfo **ret_file);
161 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
162 extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
163 struct cifsFileInfo **ret_file);
164 extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
165 extern int decode_negTokenInit(unsigned char *security_blob, int length,
166 struct TCP_Server_Info *server);
167 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
168 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
169 extern int map_smb_to_linux_error(char *buf, bool logErr);
170 extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);
171 extern void header_assemble(struct smb_hdr *, char /* command */ ,
172 const struct cifs_tcon *, int /* length of
173 fixed section (word count) in two byte units */);
174 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
175 struct cifs_ses *ses,
176 void **request_buf);
177 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
178 enum securityEnum requested);
179 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
180 const struct nls_table *nls_cp);
181 extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
182 extern u64 cifs_UnixTimeToNT(struct timespec64);
183 extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
184 int offset);
185 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
186 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
187 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
188 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
189 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
190 struct file_lock *flock, const unsigned int xid);
191 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
192
193 extern void cifs_down_write(struct rw_semaphore *sem);
194 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
195 struct file *file,
196 struct tcon_link *tlink,
197 __u32 oplock);
198 extern int cifs_posix_open(const char *full_path, struct inode **inode,
199 struct super_block *sb, int mode,
200 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
201 unsigned int xid);
202 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
203 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
204 FILE_UNIX_BASIC_INFO *info,
205 struct cifs_sb_info *cifs_sb);
206 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
207 struct cifs_sb_info *);
208 extern int cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
209 extern struct inode *cifs_iget(struct super_block *sb,
210 struct cifs_fattr *fattr);
211
212 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
213 FILE_ALL_INFO *data, struct super_block *sb,
214 int xid, const struct cifs_fid *fid);
215 extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path,
216 struct super_block *sb, unsigned int xid);
217 extern int cifs_get_inode_info_unix(struct inode **pinode,
218 const unsigned char *search_path,
219 struct super_block *sb, unsigned int xid);
220 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
221 unsigned int xid, const char *full_path, __u32 dosattr);
222 extern int cifs_rename_pending_delete(const char *full_path,
223 struct dentry *dentry,
224 const unsigned int xid);
225 extern int sid_to_id(struct cifs_sb_info *cifs_sb, struct cifs_sid *psid,
226 struct cifs_fattr *fattr, uint sidtype);
227 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
228 struct cifs_fattr *fattr, struct inode *inode,
229 bool get_mode_from_special_sid,
230 const char *path, const struct cifs_fid *pfid);
231 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,
232 kuid_t uid, kgid_t gid);
233 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
234 const char *, u32 *, u32);
235 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
236 const struct cifs_fid *, u32 *, u32);
237 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
238 const char *, int);
239 extern unsigned int setup_authusers_ACE(struct cifs_ace *pace);
240 extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
241 extern unsigned int setup_special_user_owner_ACE(struct cifs_ace *pace);
242
243 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
244 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
245 unsigned int to_read);
246 extern ssize_t cifs_discard_from_socket(struct TCP_Server_Info *server,
247 size_t to_read);
248 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
249 struct page *page,
250 unsigned int page_offset,
251 unsigned int to_read);
252 extern int cifs_setup_cifs_sb(struct cifs_sb_info *cifs_sb);
253 extern int cifs_match_super(struct super_block *, void *);
254 extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx);
255 extern void cifs_umount(struct cifs_sb_info *);
256 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
257 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
258
259 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
260 __u64 length, __u8 type, __u16 flags,
261 struct cifsLockInfo **conf_lock,
262 int rw_check);
263 extern void cifs_add_pending_open(struct cifs_fid *fid,
264 struct tcon_link *tlink,
265 struct cifs_pending_open *open);
266 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
267 struct tcon_link *tlink,
268 struct cifs_pending_open *open);
269 extern void cifs_del_pending_open(struct cifs_pending_open *open);
270
271 extern bool cifs_is_deferred_close(struct cifsFileInfo *cfile,
272 struct cifs_deferred_close **dclose);
273
274 extern void cifs_add_deferred_close(struct cifsFileInfo *cfile,
275 struct cifs_deferred_close *dclose);
276
277 extern void cifs_del_deferred_close(struct cifsFileInfo *cfile);
278
279 extern void cifs_close_deferred_file(struct cifsInodeInfo *cifs_inode);
280
281 extern void cifs_close_all_deferred_files(struct cifs_tcon *cifs_tcon);
282
283 extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb3_fs_context *ctx);
284 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
285 int from_reconnect);
286 extern void cifs_put_tcon(struct cifs_tcon *tcon);
287
288 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
289 extern void cifs_dfs_release_automount_timer(void);
290 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
291 #define cifs_dfs_release_automount_timer() do { } while (0)
292 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
293
294 void cifs_proc_init(void);
295 void cifs_proc_clean(void);
296
297 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
298 extern void cifs_free_llist(struct list_head *llist);
299 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
300
301 extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
302 const struct nls_table *nlsc);
303
304 extern int cifs_negotiate_protocol(const unsigned int xid,
305 struct cifs_ses *ses);
306 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
307 struct nls_table *nls_info);
308 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
309 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
310
311 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
312 const char *tree, struct cifs_tcon *tcon,
313 const struct nls_table *);
314
315 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
316 const char *searchName, struct cifs_sb_info *cifs_sb,
317 __u16 *searchHandle, __u16 search_flags,
318 struct cifs_search_info *psrch_inf,
319 bool msearch);
320
321 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
322 __u16 searchHandle, __u16 search_flags,
323 struct cifs_search_info *psrch_inf);
324
325 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
326 const __u16 search_handle);
327
328 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
329 u16 netfid, FILE_ALL_INFO *pFindData);
330 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
331 const char *search_Name, FILE_ALL_INFO *data,
332 int legacy /* whether to use old info level */,
333 const struct nls_table *nls_codepage, int remap);
334 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
335 const char *search_name, FILE_ALL_INFO *data,
336 const struct nls_table *nls_codepage, int remap);
337
338 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
339 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
340 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
341 struct cifs_tcon *tcon,
342 const unsigned char *searchName,
343 FILE_UNIX_BASIC_INFO *pFindData,
344 const struct nls_table *nls_codepage, int remap);
345
346 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
347 const char *search_name,
348 struct dfs_info3_param **target_nodes,
349 unsigned int *num_of_nodes,
350 const struct nls_table *nls_codepage, int remap);
351
352 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
353 unsigned int *num_of_nodes,
354 struct dfs_info3_param **target_nodes,
355 const struct nls_table *nls_codepage, int remap,
356 const char *searchName, bool is_unicode);
357 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
358 struct cifs_sb_info *cifs_sb,
359 struct smb3_fs_context *ctx);
360 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
361 struct kstatfs *FSData);
362 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
363 struct kstatfs *FSData);
364 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
365 __u64 cap);
366
367 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
368 struct cifs_tcon *tcon);
369 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
370 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
371 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
372 struct kstatfs *FSData);
373
374 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
375 const char *fileName, const FILE_BASIC_INFO *data,
376 const struct nls_table *nls_codepage,
377 struct cifs_sb_info *cifs_sb);
378 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
379 const FILE_BASIC_INFO *data, __u16 fid,
380 __u32 pid_of_opener);
381 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
382 struct cifs_tcon *tcon,
383 bool delete_file, __u16 fid,
384 __u32 pid_of_opener);
385 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
386 const char *file_name, __u64 size,
387 struct cifs_sb_info *cifs_sb, bool set_allocation);
388 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
389 struct cifsFileInfo *cfile, __u64 size,
390 bool set_allocation);
391
392 struct cifs_unix_set_info_args {
393 __u64 ctime;
394 __u64 atime;
395 __u64 mtime;
396 __u64 mode;
397 kuid_t uid;
398 kgid_t gid;
399 dev_t device;
400 };
401
402 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
403 struct cifs_tcon *tcon,
404 const struct cifs_unix_set_info_args *args,
405 u16 fid, u32 pid_of_opener);
406
407 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
408 struct cifs_tcon *tcon, const char *file_name,
409 const struct cifs_unix_set_info_args *args,
410 const struct nls_table *nls_codepage,
411 int remap);
412
413 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
414 umode_t mode, struct cifs_tcon *tcon,
415 const char *name, struct cifs_sb_info *cifs_sb);
416 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
417 const char *name, struct cifs_sb_info *cifs_sb);
418 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
419 const char *name, __u16 type,
420 const struct nls_table *nls_codepage,
421 int remap_special_chars);
422 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
423 const char *name, struct cifs_sb_info *cifs_sb);
424 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
425 const char *from_name, const char *to_name,
426 struct cifs_sb_info *cifs_sb);
427 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
428 int netfid, const char *target_name,
429 const struct nls_table *nls_codepage,
430 int remap_special_chars);
431 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
432 const char *from_name, const char *to_name,
433 struct cifs_sb_info *cifs_sb);
434 extern int CIFSUnixCreateHardLink(const unsigned int xid,
435 struct cifs_tcon *tcon,
436 const char *fromName, const char *toName,
437 const struct nls_table *nls_codepage,
438 int remap_special_chars);
439 extern int CIFSUnixCreateSymLink(const unsigned int xid,
440 struct cifs_tcon *tcon,
441 const char *fromName, const char *toName,
442 const struct nls_table *nls_codepage, int remap);
443 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
444 struct cifs_tcon *tcon,
445 const unsigned char *searchName, char **syminfo,
446 const struct nls_table *nls_codepage, int remap);
447 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
448 __u16 fid, char **symlinkinfo,
449 const struct nls_table *nls_codepage);
450 extern int CIFSSMB_set_compression(const unsigned int xid,
451 struct cifs_tcon *tcon, __u16 fid);
452 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
453 int *oplock, FILE_ALL_INFO *buf);
454 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
455 const char *fileName, const int disposition,
456 const int access_flags, const int omode,
457 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
458 const struct nls_table *nls_codepage, int remap);
459 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
460 u32 posix_flags, __u64 mode, __u16 *netfid,
461 FILE_UNIX_BASIC_INFO *pRetData,
462 __u32 *pOplock, const char *name,
463 const struct nls_table *nls_codepage, int remap);
464 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
465 const int smb_file_id);
466
467 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
468 const int smb_file_id);
469
470 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
471 unsigned int *nbytes, char **buf,
472 int *return_buf_type);
473 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
474 unsigned int *nbytes, const char *buf);
475 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
476 unsigned int *nbytes, struct kvec *iov, const int nvec);
477 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
478 const char *search_name, __u64 *inode_number,
479 const struct nls_table *nls_codepage,
480 int remap);
481
482 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
483 const __u16 netfid, const __u8 lock_type,
484 const __u32 num_unlock, const __u32 num_lock,
485 LOCKING_ANDX_RANGE *buf);
486 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
487 const __u16 netfid, const __u32 netpid, const __u64 len,
488 const __u64 offset, const __u32 numUnlock,
489 const __u32 numLock, const __u8 lockType,
490 const bool waitFlag, const __u8 oplock_level);
491 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
492 const __u16 smb_file_id, const __u32 netpid,
493 const loff_t start_offset, const __u64 len,
494 struct file_lock *, const __u16 lock_type,
495 const bool waitFlag);
496 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
497 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
498 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
499
500 extern struct cifs_ses *sesInfoAlloc(void);
501 extern void sesInfoFree(struct cifs_ses *);
502 extern struct cifs_tcon *tconInfoAlloc(void);
503 extern void tconInfoFree(struct cifs_tcon *);
504
505 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
506 __u32 *pexpected_response_sequence_number);
507 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
508 __u32 *);
509 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
510 extern int cifs_verify_signature(struct smb_rqst *rqst,
511 struct TCP_Server_Info *server,
512 __u32 expected_sequence_number);
513 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
514 const struct nls_table *);
515 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
516 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
517 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
518 extern int calc_seckey(struct cifs_ses *);
519 extern int generate_smb30signingkey(struct cifs_ses *);
520 extern int generate_smb311signingkey(struct cifs_ses *);
521
522 #ifdef CONFIG_CIFS_WEAK_PW_HASH
523 extern int calc_lanman_hash(const char *password, const char *cryptkey,
524 bool encrypt, char *lnm_session_key);
525 #endif /* CIFS_WEAK_PW_HASH */
526 extern int CIFSSMBCopy(unsigned int xid,
527 struct cifs_tcon *source_tcon,
528 const char *fromName,
529 const __u16 target_tid,
530 const char *toName, const int flags,
531 const struct nls_table *nls_codepage,
532 int remap_special_chars);
533 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
534 const unsigned char *searchName,
535 const unsigned char *ea_name, char *EAData,
536 size_t bufsize, struct cifs_sb_info *cifs_sb);
537 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
538 const char *fileName, const char *ea_name,
539 const void *ea_value, const __u16 ea_value_len,
540 const struct nls_table *nls_codepage,
541 struct cifs_sb_info *cifs_sb);
542 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
543 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
544 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
545 struct cifs_ntsd *, __u32, int);
546 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
547 const unsigned char *searchName,
548 char *acl_inf, const int buflen, const int acl_type,
549 const struct nls_table *nls_codepage, int remap_special_chars);
550 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
551 const unsigned char *fileName,
552 const char *local_acl, const int buflen, const int acl_type,
553 const struct nls_table *nls_codepage, int remap_special_chars);
554 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
555 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
556 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
557 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
558 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
559 struct cifs_sb_info *cifs_sb,
560 struct cifs_fattr *fattr,
561 const unsigned char *path);
562 extern int mdfour(unsigned char *, unsigned char *, int);
563 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
564 const struct nls_table *codepage);
565 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
566 unsigned char *p24);
567
568 extern int
569 cifs_setup_volume_info(struct smb3_fs_context *ctx, const char *mntopts, const char *devname);
570
571 extern struct TCP_Server_Info *
572 cifs_find_tcp_session(struct smb3_fs_context *ctx);
573
574 extern void cifs_put_smb_ses(struct cifs_ses *ses);
575
576 extern struct cifs_ses *
577 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx);
578
579 void cifs_readdata_release(struct kref *refcount);
580 int cifs_async_readv(struct cifs_readdata *rdata);
581 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
582
583 int cifs_async_writev(struct cifs_writedata *wdata,
584 void (*release)(struct kref *kref));
585 void cifs_writev_complete(struct work_struct *work);
586 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
587 work_func_t complete);
588 struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
589 work_func_t complete);
590 void cifs_writedata_release(struct kref *refcount);
591 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
592 struct cifs_sb_info *cifs_sb,
593 const unsigned char *path, char *pbuf,
594 unsigned int *pbytes_read);
595 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
596 struct cifs_sb_info *cifs_sb,
597 const unsigned char *path, char *pbuf,
598 unsigned int *pbytes_written);
599 int __cifs_calc_signature(struct smb_rqst *rqst,
600 struct TCP_Server_Info *server, char *signature,
601 struct shash_desc *shash);
602 enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
603 enum securityEnum);
604 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
605 void cifs_aio_ctx_release(struct kref *refcount);
606 int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
607 void smb2_cached_lease_break(struct work_struct *work);
608
609 int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
610 struct sdesc **sdesc);
611 void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
612
613 extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
614 unsigned int *len, unsigned int *offset);
615 struct cifs_chan *
616 cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
617 int cifs_try_adding_channels(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses);
618 bool is_server_using_iface(struct TCP_Server_Info *server,
619 struct cifs_server_iface *iface);
620 bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
621
622 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
623 int copy_path_name(char *dst, const char *src);
624 int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
625 int resp_buftype,
626 struct cifs_search_info *srch_inf);
627
628 struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
629 void cifs_put_tcp_super(struct super_block *sb);
630 int update_super_prepath(struct cifs_tcon *tcon, char *prefix);
631 char *extract_hostname(const char *unc);
632 char *extract_sharename(const char *unc);
633
634 #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)635 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
636 const char *old_path,
637 const struct nls_table *nls_codepage,
638 struct dfs_info3_param *referral, int remap)
639 {
640 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
641 referral, NULL);
642 }
643
644 int match_target_ip(struct TCP_Server_Info *server,
645 const char *share, size_t share_len,
646 bool *result);
647 #endif
648
cifs_create_options(struct cifs_sb_info * cifs_sb,int options)649 static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
650 {
651 if (cifs_sb && (backup_cred(cifs_sb)))
652 return options | CREATE_OPEN_BACKUP_INTENT;
653 else
654 return options;
655 }
656
657 #endif /* _CIFSPROTO_H */
658