1 /* SPDX-License-Identifier: LGPL-2.1 */
2 /*
3 *
4 * Copyright (c) International Business Machines Corp., 2002,2008
5 * Author(s): Steve French (sfrench@us.ibm.com)
6 *
7 */
8 #ifndef _CIFSPROTO_H
9 #define _CIFSPROTO_H
10 #include <linux/nls.h>
11 #include "trace.h"
12 #ifdef CONFIG_CIFS_DFS_UPCALL
13 #include "dfs_cache.h"
14 #endif
15
16 struct statfs;
17 struct smb_rqst;
18 struct smb3_fs_context;
19
20 /*
21 *****************************************************************
22 * All Prototypes
23 *****************************************************************
24 */
25
26 extern struct smb_hdr *cifs_buf_get(void);
27 extern void cifs_buf_release(void *);
28 extern struct smb_hdr *cifs_small_buf_get(void);
29 extern void cifs_small_buf_release(void *);
30 extern void free_rsp_buf(int, void *);
31 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
32 unsigned int /* length */);
33 extern unsigned int _get_xid(void);
34 extern void _free_xid(unsigned int);
35 #define get_xid() \
36 ({ \
37 unsigned int __xid = _get_xid(); \
38 cifs_dbg(FYI, "VFS: in %s as Xid: %u with uid: %d\n", \
39 __func__, __xid, \
40 from_kuid(&init_user_ns, current_fsuid())); \
41 trace_smb3_enter(__xid, __func__); \
42 __xid; \
43 })
44
45 #define free_xid(curr_xid) \
46 do { \
47 _free_xid(curr_xid); \
48 cifs_dbg(FYI, "VFS: leaving %s (xid = %u) rc = %d\n", \
49 __func__, curr_xid, (int)rc); \
50 if (rc) \
51 trace_smb3_exit_err(curr_xid, __func__, (int)rc); \
52 else \
53 trace_smb3_exit_done(curr_xid, __func__); \
54 } while (0)
55 extern int init_cifs_idmap(void);
56 extern void exit_cifs_idmap(void);
57 extern int init_cifs_spnego(void);
58 extern void exit_cifs_spnego(void);
59 extern const char *build_path_from_dentry(struct dentry *, void *);
60 extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
61 void *page, bool prefix);
alloc_dentry_path(void)62 static inline void *alloc_dentry_path(void)
63 {
64 return __getname();
65 }
66
free_dentry_path(void * page)67 static inline void free_dentry_path(void *page)
68 {
69 if (page)
70 __putname(page);
71 }
72
73 extern char *cifs_build_path_to_root(struct smb3_fs_context *ctx,
74 struct cifs_sb_info *cifs_sb,
75 struct cifs_tcon *tcon,
76 int add_treename);
77 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
78 extern char *cifs_compose_mount_options(const char *sb_mountdata,
79 const char *fullpath, const struct dfs_info3_param *ref,
80 char **devname);
81 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
82 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
83 struct TCP_Server_Info *server);
84 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
85 extern void cifs_delete_mid(struct mid_q_entry *mid);
86 extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
87 extern void cifs_wake_up_task(struct mid_q_entry *mid);
88 extern int cifs_handle_standard(struct TCP_Server_Info *server,
89 struct mid_q_entry *mid);
90 extern int smb3_parse_devname(const char *devname, struct smb3_fs_context *ctx);
91 extern int smb3_parse_opt(const char *options, const char *key, char **val);
92 extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);
93 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
94 extern int cifs_call_async(struct TCP_Server_Info *server,
95 struct smb_rqst *rqst,
96 mid_receive_t *receive, mid_callback_t *callback,
97 mid_handle_t *handle, void *cbdata, const int flags,
98 const struct cifs_credits *exist_credits);
99 extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);
100 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
101 struct TCP_Server_Info *server,
102 struct smb_rqst *rqst, int *resp_buf_type,
103 const int flags, struct kvec *resp_iov);
104 extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
105 struct TCP_Server_Info *server,
106 const int flags, const int num_rqst,
107 struct smb_rqst *rqst, int *resp_buf_type,
108 struct kvec *resp_iov);
109 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
110 struct smb_hdr * /* input */ ,
111 struct smb_hdr * /* out */ ,
112 int * /* bytes returned */ , const int);
113 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
114 char *in_buf, int flags);
115 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
116 struct TCP_Server_Info *,
117 struct smb_rqst *);
118 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
119 struct smb_rqst *);
120 extern int cifs_check_receive(struct mid_q_entry *mid,
121 struct TCP_Server_Info *server, bool log_error);
122 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
123 unsigned int size, unsigned int *num,
124 struct cifs_credits *credits);
125 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
126 struct kvec *, int /* nvec to send */,
127 int * /* type of buf returned */, const int flags,
128 struct kvec * /* resp vec */);
129 extern int SendReceiveBlockingLock(const unsigned int xid,
130 struct cifs_tcon *ptcon,
131 struct smb_hdr *in_buf ,
132 struct smb_hdr *out_buf,
133 int *bytes_returned);
134 void
135 cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server,
136 bool all_channels);
137 void
138 cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server,
139 bool mark_smb_session);
140 extern int cifs_reconnect(struct TCP_Server_Info *server,
141 bool mark_smb_session);
142 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
143 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
144 extern bool backup_cred(struct cifs_sb_info *);
145 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
146 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
147 unsigned int bytes_written);
148 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
149 extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
150 int flags,
151 struct cifsFileInfo **ret_file);
152 extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
153 int flags,
154 struct cifsFileInfo **ret_file);
155 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
156 extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
157 struct cifsFileInfo **ret_file);
158 extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
159 extern int decode_negTokenInit(unsigned char *security_blob, int length,
160 struct TCP_Server_Info *server);
161 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
162 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
163 extern int map_smb_to_linux_error(char *buf, bool logErr);
164 extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);
165 extern void header_assemble(struct smb_hdr *, char /* command */ ,
166 const struct cifs_tcon *, int /* length of
167 fixed section (word count) in two byte units */);
168 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
169 struct cifs_ses *ses,
170 void **request_buf);
171 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
172 enum securityEnum requested);
173 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
174 struct TCP_Server_Info *server,
175 const struct nls_table *nls_cp);
176 extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
177 extern u64 cifs_UnixTimeToNT(struct timespec64);
178 extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
179 int offset);
180 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
181 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
182 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
183 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
184 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
185 struct file_lock *flock, const unsigned int xid);
186 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
187
188 extern void cifs_down_write(struct rw_semaphore *sem);
189 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
190 struct file *file,
191 struct tcon_link *tlink,
192 __u32 oplock);
193 extern int cifs_posix_open(const char *full_path, struct inode **inode,
194 struct super_block *sb, int mode,
195 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
196 unsigned int xid);
197 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
198 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
199 FILE_UNIX_BASIC_INFO *info,
200 struct cifs_sb_info *cifs_sb);
201 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
202 struct cifs_sb_info *);
203 extern int cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
204 extern struct inode *cifs_iget(struct super_block *sb,
205 struct cifs_fattr *fattr);
206
207 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
208 FILE_ALL_INFO *data, struct super_block *sb,
209 int xid, const struct cifs_fid *fid);
210 extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path,
211 struct super_block *sb, unsigned int xid);
212 extern int cifs_get_inode_info_unix(struct inode **pinode,
213 const unsigned char *search_path,
214 struct super_block *sb, unsigned int xid);
215 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
216 unsigned int xid, const char *full_path, __u32 dosattr);
217 extern int cifs_rename_pending_delete(const char *full_path,
218 struct dentry *dentry,
219 const unsigned int xid);
220 extern int sid_to_id(struct cifs_sb_info *cifs_sb, struct cifs_sid *psid,
221 struct cifs_fattr *fattr, uint sidtype);
222 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
223 struct cifs_fattr *fattr, struct inode *inode,
224 bool get_mode_from_special_sid,
225 const char *path, const struct cifs_fid *pfid);
226 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,
227 kuid_t uid, kgid_t gid);
228 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
229 const char *, u32 *, u32);
230 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
231 const struct cifs_fid *, u32 *, u32);
232 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
233 const char *, int);
234 extern unsigned int setup_authusers_ACE(struct cifs_ace *pace);
235 extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
236 extern unsigned int setup_special_user_owner_ACE(struct cifs_ace *pace);
237
238 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
239 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
240 unsigned int to_read);
241 extern ssize_t cifs_discard_from_socket(struct TCP_Server_Info *server,
242 size_t to_read);
243 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
244 struct page *page,
245 unsigned int page_offset,
246 unsigned int to_read);
247 extern int cifs_setup_cifs_sb(struct cifs_sb_info *cifs_sb);
248 extern int cifs_match_super(struct super_block *, void *);
249 extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx);
250 extern void cifs_umount(struct cifs_sb_info *);
251 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
252 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
253
254 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
255 __u64 length, __u8 type, __u16 flags,
256 struct cifsLockInfo **conf_lock,
257 int rw_check);
258 extern void cifs_add_pending_open(struct cifs_fid *fid,
259 struct tcon_link *tlink,
260 struct cifs_pending_open *open);
261 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
262 struct tcon_link *tlink,
263 struct cifs_pending_open *open);
264 extern void cifs_del_pending_open(struct cifs_pending_open *open);
265
266 extern bool cifs_is_deferred_close(struct cifsFileInfo *cfile,
267 struct cifs_deferred_close **dclose);
268
269 extern void cifs_add_deferred_close(struct cifsFileInfo *cfile,
270 struct cifs_deferred_close *dclose);
271
272 extern void cifs_del_deferred_close(struct cifsFileInfo *cfile);
273
274 extern void cifs_close_deferred_file(struct cifsInodeInfo *cifs_inode);
275
276 extern void cifs_close_all_deferred_files(struct cifs_tcon *cifs_tcon);
277
278 extern void cifs_close_deferred_file_under_dentry(struct cifs_tcon *cifs_tcon,
279 const char *path);
280 extern struct TCP_Server_Info *
281 cifs_get_tcp_session(struct smb3_fs_context *ctx,
282 struct TCP_Server_Info *primary_server);
283 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
284 int from_reconnect);
285 extern void cifs_put_tcon(struct cifs_tcon *tcon);
286
287 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
288 extern void cifs_dfs_release_automount_timer(void);
289 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
290 #define cifs_dfs_release_automount_timer() do { } while (0)
291 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
292
293 void cifs_proc_init(void);
294 void cifs_proc_clean(void);
295
296 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
297 extern void cifs_free_llist(struct list_head *llist);
298 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
299
300 extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
301 const struct nls_table *nlsc);
302
303 extern int cifs_negotiate_protocol(const unsigned int xid,
304 struct cifs_ses *ses,
305 struct TCP_Server_Info *server);
306 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
307 struct TCP_Server_Info *server,
308 struct nls_table *nls_info);
309 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
310 extern int CIFSSMBNegotiate(const unsigned int xid,
311 struct cifs_ses *ses,
312 struct TCP_Server_Info *server);
313
314 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
315 const char *tree, struct cifs_tcon *tcon,
316 const struct nls_table *);
317
318 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
319 const char *searchName, struct cifs_sb_info *cifs_sb,
320 __u16 *searchHandle, __u16 search_flags,
321 struct cifs_search_info *psrch_inf,
322 bool msearch);
323
324 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
325 __u16 searchHandle, __u16 search_flags,
326 struct cifs_search_info *psrch_inf);
327
328 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
329 const __u16 search_handle);
330
331 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
332 u16 netfid, FILE_ALL_INFO *pFindData);
333 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
334 const char *search_Name, FILE_ALL_INFO *data,
335 int legacy /* whether to use old info level */,
336 const struct nls_table *nls_codepage, int remap);
337 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
338 const char *search_name, FILE_ALL_INFO *data,
339 const struct nls_table *nls_codepage, int remap);
340
341 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
342 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
343 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
344 struct cifs_tcon *tcon,
345 const unsigned char *searchName,
346 FILE_UNIX_BASIC_INFO *pFindData,
347 const struct nls_table *nls_codepage, int remap);
348
349 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
350 const char *search_name,
351 struct dfs_info3_param **target_nodes,
352 unsigned int *num_of_nodes,
353 const struct nls_table *nls_codepage, int remap);
354
355 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
356 unsigned int *num_of_nodes,
357 struct dfs_info3_param **target_nodes,
358 const struct nls_table *nls_codepage, int remap,
359 const char *searchName, bool is_unicode);
360 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
361 struct cifs_sb_info *cifs_sb,
362 struct smb3_fs_context *ctx);
363 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
364 struct kstatfs *FSData);
365 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
366 struct kstatfs *FSData);
367 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
368 __u64 cap);
369
370 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
371 struct cifs_tcon *tcon);
372 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
373 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
374 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
375 struct kstatfs *FSData);
376
377 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
378 const char *fileName, const FILE_BASIC_INFO *data,
379 const struct nls_table *nls_codepage,
380 struct cifs_sb_info *cifs_sb);
381 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
382 const FILE_BASIC_INFO *data, __u16 fid,
383 __u32 pid_of_opener);
384 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
385 struct cifs_tcon *tcon,
386 bool delete_file, __u16 fid,
387 __u32 pid_of_opener);
388 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
389 const char *file_name, __u64 size,
390 struct cifs_sb_info *cifs_sb, bool set_allocation);
391 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
392 struct cifsFileInfo *cfile, __u64 size,
393 bool set_allocation);
394
395 struct cifs_unix_set_info_args {
396 __u64 ctime;
397 __u64 atime;
398 __u64 mtime;
399 __u64 mode;
400 kuid_t uid;
401 kgid_t gid;
402 dev_t device;
403 };
404
405 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
406 struct cifs_tcon *tcon,
407 const struct cifs_unix_set_info_args *args,
408 u16 fid, u32 pid_of_opener);
409
410 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
411 struct cifs_tcon *tcon, const char *file_name,
412 const struct cifs_unix_set_info_args *args,
413 const struct nls_table *nls_codepage,
414 int remap);
415
416 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
417 umode_t mode, struct cifs_tcon *tcon,
418 const char *name, struct cifs_sb_info *cifs_sb);
419 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
420 const char *name, struct cifs_sb_info *cifs_sb);
421 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
422 const char *name, __u16 type,
423 const struct nls_table *nls_codepage,
424 int remap_special_chars);
425 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
426 const char *name, struct cifs_sb_info *cifs_sb);
427 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
428 const char *from_name, const char *to_name,
429 struct cifs_sb_info *cifs_sb);
430 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
431 int netfid, const char *target_name,
432 const struct nls_table *nls_codepage,
433 int remap_special_chars);
434 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
435 const char *from_name, const char *to_name,
436 struct cifs_sb_info *cifs_sb);
437 extern int CIFSUnixCreateHardLink(const unsigned int xid,
438 struct cifs_tcon *tcon,
439 const char *fromName, const char *toName,
440 const struct nls_table *nls_codepage,
441 int remap_special_chars);
442 extern int CIFSUnixCreateSymLink(const unsigned int xid,
443 struct cifs_tcon *tcon,
444 const char *fromName, const char *toName,
445 const struct nls_table *nls_codepage, int remap);
446 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
447 struct cifs_tcon *tcon,
448 const unsigned char *searchName, char **syminfo,
449 const struct nls_table *nls_codepage, int remap);
450 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
451 __u16 fid, char **symlinkinfo,
452 const struct nls_table *nls_codepage);
453 extern int CIFSSMB_set_compression(const unsigned int xid,
454 struct cifs_tcon *tcon, __u16 fid);
455 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
456 int *oplock, FILE_ALL_INFO *buf);
457 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
458 const char *fileName, const int disposition,
459 const int access_flags, const int omode,
460 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
461 const struct nls_table *nls_codepage, int remap);
462 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
463 u32 posix_flags, __u64 mode, __u16 *netfid,
464 FILE_UNIX_BASIC_INFO *pRetData,
465 __u32 *pOplock, const char *name,
466 const struct nls_table *nls_codepage, int remap);
467 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
468 const int smb_file_id);
469
470 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
471 const int smb_file_id);
472
473 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
474 unsigned int *nbytes, char **buf,
475 int *return_buf_type);
476 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
477 unsigned int *nbytes, const char *buf);
478 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
479 unsigned int *nbytes, struct kvec *iov, const int nvec);
480 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
481 const char *search_name, __u64 *inode_number,
482 const struct nls_table *nls_codepage,
483 int remap);
484
485 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
486 const __u16 netfid, const __u8 lock_type,
487 const __u32 num_unlock, const __u32 num_lock,
488 LOCKING_ANDX_RANGE *buf);
489 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
490 const __u16 netfid, const __u32 netpid, const __u64 len,
491 const __u64 offset, const __u32 numUnlock,
492 const __u32 numLock, const __u8 lockType,
493 const bool waitFlag, const __u8 oplock_level);
494 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
495 const __u16 smb_file_id, const __u32 netpid,
496 const loff_t start_offset, const __u64 len,
497 struct file_lock *, const __u16 lock_type,
498 const bool waitFlag);
499 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
500 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
501 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
502
503 extern struct cifs_ses *sesInfoAlloc(void);
504 extern void sesInfoFree(struct cifs_ses *);
505 extern struct cifs_tcon *tconInfoAlloc(void);
506 extern void tconInfoFree(struct cifs_tcon *);
507
508 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
509 __u32 *pexpected_response_sequence_number);
510 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
511 __u32 *);
512 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
513 extern int cifs_verify_signature(struct smb_rqst *rqst,
514 struct TCP_Server_Info *server,
515 __u32 expected_sequence_number);
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 *ses,
520 struct TCP_Server_Info *server);
521 extern int generate_smb311signingkey(struct cifs_ses *ses,
522 struct TCP_Server_Info *server);
523
524 extern int CIFSSMBCopy(unsigned int xid,
525 struct cifs_tcon *source_tcon,
526 const char *fromName,
527 const __u16 target_tid,
528 const char *toName, const int flags,
529 const struct nls_table *nls_codepage,
530 int remap_special_chars);
531 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
532 const unsigned char *searchName,
533 const unsigned char *ea_name, char *EAData,
534 size_t bufsize, struct cifs_sb_info *cifs_sb);
535 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
536 const char *fileName, const char *ea_name,
537 const void *ea_value, const __u16 ea_value_len,
538 const struct nls_table *nls_codepage,
539 struct cifs_sb_info *cifs_sb);
540 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
541 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
542 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
543 struct cifs_ntsd *, __u32, int);
544 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
545 const unsigned char *searchName,
546 char *acl_inf, const int buflen, const int acl_type,
547 const struct nls_table *nls_codepage, int remap_special_chars);
548 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
549 const unsigned char *fileName,
550 const char *local_acl, const int buflen, const int acl_type,
551 const struct nls_table *nls_codepage, int remap_special_chars);
552 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
553 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
554 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
555 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
556 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
557 struct cifs_sb_info *cifs_sb,
558 struct cifs_fattr *fattr,
559 const unsigned char *path);
560 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
561 const struct nls_table *codepage);
562
563 extern int
564 cifs_setup_volume_info(struct smb3_fs_context *ctx, const char *mntopts, const char *devname);
565
566 extern struct TCP_Server_Info *
567 cifs_find_tcp_session(struct smb3_fs_context *ctx);
568
569 extern void cifs_put_smb_ses(struct cifs_ses *ses);
570
571 extern struct cifs_ses *
572 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx);
573
574 void cifs_readdata_release(struct kref *refcount);
575 int cifs_async_readv(struct cifs_readdata *rdata);
576 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
577
578 int cifs_async_writev(struct cifs_writedata *wdata,
579 void (*release)(struct kref *kref));
580 void cifs_writev_complete(struct work_struct *work);
581 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
582 work_func_t complete);
583 struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
584 work_func_t complete);
585 void cifs_writedata_release(struct kref *refcount);
586 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
587 struct cifs_sb_info *cifs_sb,
588 const unsigned char *path, char *pbuf,
589 unsigned int *pbytes_read);
590 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
591 struct cifs_sb_info *cifs_sb,
592 const unsigned char *path, char *pbuf,
593 unsigned int *pbytes_written);
594 int __cifs_calc_signature(struct smb_rqst *rqst,
595 struct TCP_Server_Info *server, char *signature,
596 struct shash_desc *shash);
597 enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
598 enum securityEnum);
599 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
600 void cifs_aio_ctx_release(struct kref *refcount);
601 int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
602 void smb2_cached_lease_break(struct work_struct *work);
603
604 int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
605 struct sdesc **sdesc);
606 void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
607
608 extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
609 unsigned int *len, unsigned int *offset);
610 struct cifs_chan *
611 cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
612 int cifs_try_adding_channels(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses);
613 bool is_server_using_iface(struct TCP_Server_Info *server,
614 struct cifs_server_iface *iface);
615 bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
616 void cifs_ses_mark_for_reconnect(struct cifs_ses *ses);
617
618 unsigned int
619 cifs_ses_get_chan_index(struct cifs_ses *ses,
620 struct TCP_Server_Info *server);
621 void
622 cifs_chan_set_in_reconnect(struct cifs_ses *ses,
623 struct TCP_Server_Info *server);
624 void
625 cifs_chan_clear_in_reconnect(struct cifs_ses *ses,
626 struct TCP_Server_Info *server);
627 bool
628 cifs_chan_in_reconnect(struct cifs_ses *ses,
629 struct TCP_Server_Info *server);
630 void
631 cifs_chan_set_need_reconnect(struct cifs_ses *ses,
632 struct TCP_Server_Info *server);
633 void
634 cifs_chan_clear_need_reconnect(struct cifs_ses *ses,
635 struct TCP_Server_Info *server);
636 bool
637 cifs_chan_needs_reconnect(struct cifs_ses *ses,
638 struct TCP_Server_Info *server);
639 bool
640 cifs_chan_is_iface_active(struct cifs_ses *ses,
641 struct TCP_Server_Info *server);
642 int
643 cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server);
644 int
645 SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon);
646
647 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
648 int copy_path_name(char *dst, const char *src);
649 int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
650 int resp_buftype,
651 struct cifs_search_info *srch_inf);
652
653 struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
654 void cifs_put_tcp_super(struct super_block *sb);
655 int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix);
656 char *extract_hostname(const char *unc);
657 char *extract_sharename(const char *unc);
658
659 #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)660 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
661 const char *old_path,
662 const struct nls_table *nls_codepage,
663 struct dfs_info3_param *referral, int remap)
664 {
665 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
666 referral, NULL);
667 }
668
669 int match_target_ip(struct TCP_Server_Info *server,
670 const char *share, size_t share_len,
671 bool *result);
672
673 int cifs_dfs_query_info_nonascii_quirk(const unsigned int xid,
674 struct cifs_tcon *tcon,
675 struct cifs_sb_info *cifs_sb,
676 const char *dfs_link_path);
677 #endif
678
cifs_create_options(struct cifs_sb_info * cifs_sb,int options)679 static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
680 {
681 if (cifs_sb && (backup_cred(cifs_sb)))
682 return options | CREATE_OPEN_BACKUP_INTENT;
683 else
684 return options;
685 }
686
687 struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon);
688 void cifs_put_tcon_super(struct super_block *sb);
689
690 #endif /* _CIFSPROTO_H */
691