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 char *__build_path_from_dentry_optional_prefix(struct dentry *direntry, void *page,
61 const char *tree, int tree_len,
62 bool prefix);
63 extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
64 void *page, bool prefix);
alloc_dentry_path(void)65 static inline void *alloc_dentry_path(void)
66 {
67 return __getname();
68 }
69
free_dentry_path(void * page)70 static inline void free_dentry_path(void *page)
71 {
72 if (page)
73 __putname(page);
74 }
75
76 extern char *cifs_build_path_to_root(struct smb3_fs_context *ctx,
77 struct cifs_sb_info *cifs_sb,
78 struct cifs_tcon *tcon,
79 int add_treename);
80 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
81 char *cifs_build_devname(char *nodename, const char *prepath);
82 extern void delete_mid(struct mid_q_entry *mid);
83 extern void release_mid(struct mid_q_entry *mid);
84 extern void cifs_wake_up_task(struct mid_q_entry *mid);
85 extern int cifs_handle_standard(struct TCP_Server_Info *server,
86 struct mid_q_entry *mid);
87 extern int smb3_parse_devname(const char *devname, struct smb3_fs_context *ctx);
88 extern int smb3_parse_opt(const char *options, const char *key, char **val);
89 extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);
90 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
91 extern int cifs_call_async(struct TCP_Server_Info *server,
92 struct smb_rqst *rqst,
93 mid_receive_t *receive, mid_callback_t *callback,
94 mid_handle_t *handle, void *cbdata, const int flags,
95 const struct cifs_credits *exist_credits);
96 extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);
97 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
98 struct TCP_Server_Info *server,
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 struct TCP_Server_Info *server,
103 const int flags, const int num_rqst,
104 struct smb_rqst *rqst, int *resp_buf_type,
105 struct kvec *resp_iov);
106 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
107 struct smb_hdr * /* input */ ,
108 struct smb_hdr * /* out */ ,
109 int * /* bytes returned */ , const int);
110 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
111 char *in_buf, int flags);
112 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
113 struct TCP_Server_Info *,
114 struct smb_rqst *);
115 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
116 struct smb_rqst *);
117 extern int cifs_check_receive(struct mid_q_entry *mid,
118 struct TCP_Server_Info *server, bool log_error);
119 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
120 unsigned int size, unsigned int *num,
121 struct cifs_credits *credits);
122 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
123 struct kvec *, int /* nvec to send */,
124 int * /* type of buf returned */, const int flags,
125 struct kvec * /* resp vec */);
126 extern int SendReceiveBlockingLock(const unsigned int xid,
127 struct cifs_tcon *ptcon,
128 struct smb_hdr *in_buf,
129 struct smb_hdr *out_buf,
130 int *bytes_returned);
131 void
132 cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server,
133 bool all_channels);
134 void
135 cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server,
136 bool mark_smb_session);
137 extern int cifs_reconnect(struct TCP_Server_Info *server,
138 bool mark_smb_session);
139 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
140 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
141 extern bool backup_cred(struct cifs_sb_info *);
142 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
143 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
144 unsigned int bytes_written);
145 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
146 extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
147 int flags,
148 struct cifsFileInfo **ret_file);
149 extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
150 int flags,
151 struct cifsFileInfo **ret_file);
152 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
153 extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
154 struct cifsFileInfo **ret_file);
155 extern unsigned int smbCalcSize(void *buf);
156 extern int decode_negTokenInit(unsigned char *security_blob, int length,
157 struct TCP_Server_Info *server);
158 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
159 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
160 extern int map_smb_to_linux_error(char *buf, bool logErr);
161 extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);
162 extern void header_assemble(struct smb_hdr *, char /* command */ ,
163 const struct cifs_tcon *, int /* length of
164 fixed section (word count) in two byte units */);
165 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
166 struct cifs_ses *ses,
167 void **request_buf);
168 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
169 enum securityEnum requested);
170 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
171 struct TCP_Server_Info *server,
172 const struct nls_table *nls_cp);
173 extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
174 extern u64 cifs_UnixTimeToNT(struct timespec64);
175 extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
176 int offset);
177 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
178 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
179 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
180 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
181 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
182 struct file_lock *flock, const unsigned int xid);
183 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
184
185 extern void cifs_down_write(struct rw_semaphore *sem);
186 struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,
187 struct tcon_link *tlink, __u32 oplock,
188 const char *symlink_target);
189 extern int cifs_posix_open(const char *full_path, struct inode **inode,
190 struct super_block *sb, int mode,
191 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
192 unsigned int xid);
193 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
194 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
195 FILE_UNIX_BASIC_INFO *info,
196 struct cifs_sb_info *cifs_sb);
197 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
198 struct cifs_sb_info *);
199 extern int cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
200 extern struct inode *cifs_iget(struct super_block *sb,
201 struct cifs_fattr *fattr);
202
203 int cifs_get_inode_info(struct inode **inode, const char *full_path,
204 struct cifs_open_info_data *data, struct super_block *sb, int xid,
205 const struct cifs_fid *fid);
206 extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path,
207 struct super_block *sb, unsigned int xid);
208 extern int cifs_get_inode_info_unix(struct inode **pinode,
209 const unsigned char *search_path,
210 struct super_block *sb, unsigned int xid);
211 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
212 unsigned int xid, const char *full_path, __u32 dosattr);
213 extern int cifs_rename_pending_delete(const char *full_path,
214 struct dentry *dentry,
215 const unsigned int xid);
216 extern int sid_to_id(struct cifs_sb_info *cifs_sb, struct cifs_sid *psid,
217 struct cifs_fattr *fattr, uint sidtype);
218 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
219 struct cifs_fattr *fattr, struct inode *inode,
220 bool get_mode_from_special_sid,
221 const char *path, const struct cifs_fid *pfid);
222 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,
223 kuid_t uid, kgid_t gid);
224 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
225 const char *, u32 *, u32);
226 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
227 const struct cifs_fid *, u32 *, u32);
228 extern struct posix_acl *cifs_get_acl(struct mnt_idmap *idmap,
229 struct dentry *dentry, int type);
230 extern int cifs_set_acl(struct mnt_idmap *idmap,
231 struct dentry *dentry, struct posix_acl *acl, int type);
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 int cifs_read_iter_from_socket(struct TCP_Server_Info *server,
248 struct iov_iter *iter,
249 unsigned int to_read);
250 extern int cifs_setup_cifs_sb(struct cifs_sb_info *cifs_sb);
251 void cifs_mount_put_conns(struct cifs_mount_ctx *mnt_ctx);
252 int cifs_mount_get_session(struct cifs_mount_ctx *mnt_ctx);
253 int cifs_is_path_remote(struct cifs_mount_ctx *mnt_ctx);
254 int cifs_mount_get_tcon(struct cifs_mount_ctx *mnt_ctx);
255 extern int cifs_match_super(struct super_block *, void *);
256 extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx);
257 extern void cifs_umount(struct cifs_sb_info *);
258 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
259 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
260
261 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
262 __u64 length, __u8 type, __u16 flags,
263 struct cifsLockInfo **conf_lock,
264 int rw_check);
265 extern void cifs_add_pending_open(struct cifs_fid *fid,
266 struct tcon_link *tlink,
267 struct cifs_pending_open *open);
268 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
269 struct tcon_link *tlink,
270 struct cifs_pending_open *open);
271 extern void cifs_del_pending_open(struct cifs_pending_open *open);
272
273 extern bool cifs_is_deferred_close(struct cifsFileInfo *cfile,
274 struct cifs_deferred_close **dclose);
275
276 extern void cifs_add_deferred_close(struct cifsFileInfo *cfile,
277 struct cifs_deferred_close *dclose);
278
279 extern void cifs_del_deferred_close(struct cifsFileInfo *cfile);
280
281 extern void cifs_close_deferred_file(struct cifsInodeInfo *cifs_inode);
282
283 extern void cifs_close_all_deferred_files(struct cifs_tcon *cifs_tcon);
284
285 extern void cifs_close_deferred_file_under_dentry(struct cifs_tcon *cifs_tcon,
286 const char *path);
287 extern struct TCP_Server_Info *
288 cifs_get_tcp_session(struct smb3_fs_context *ctx,
289 struct TCP_Server_Info *primary_server);
290 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
291 int from_reconnect);
292 extern void cifs_put_tcon(struct cifs_tcon *tcon);
293
294 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
295 extern void cifs_dfs_release_automount_timer(void);
296 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
297 #define cifs_dfs_release_automount_timer() do { } while (0)
298 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
299
300 void cifs_proc_init(void);
301 void cifs_proc_clean(void);
302
303 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
304 extern void cifs_free_llist(struct list_head *llist);
305 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
306
307 extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
308 const struct nls_table *nlsc);
309
310 extern int cifs_negotiate_protocol(const unsigned int xid,
311 struct cifs_ses *ses,
312 struct TCP_Server_Info *server);
313 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
314 struct TCP_Server_Info *server,
315 struct nls_table *nls_info);
316 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
317 extern int CIFSSMBNegotiate(const unsigned int xid,
318 struct cifs_ses *ses,
319 struct TCP_Server_Info *server);
320
321 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
322 const char *tree, struct cifs_tcon *tcon,
323 const struct nls_table *);
324
325 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
326 const char *searchName, struct cifs_sb_info *cifs_sb,
327 __u16 *searchHandle, __u16 search_flags,
328 struct cifs_search_info *psrch_inf,
329 bool msearch);
330
331 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
332 __u16 searchHandle, __u16 search_flags,
333 struct cifs_search_info *psrch_inf);
334
335 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
336 const __u16 search_handle);
337
338 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
339 u16 netfid, FILE_ALL_INFO *pFindData);
340 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
341 const char *search_Name, FILE_ALL_INFO *data,
342 int legacy /* whether to use old info level */,
343 const struct nls_table *nls_codepage, int remap);
344 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
345 const char *search_name, FILE_ALL_INFO *data,
346 const struct nls_table *nls_codepage, int remap);
347
348 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
349 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
350 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
351 struct cifs_tcon *tcon,
352 const unsigned char *searchName,
353 FILE_UNIX_BASIC_INFO *pFindData,
354 const struct nls_table *nls_codepage, int remap);
355
356 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
357 const char *search_name,
358 struct dfs_info3_param **target_nodes,
359 unsigned int *num_of_nodes,
360 const struct nls_table *nls_codepage, int remap);
361
362 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
363 unsigned int *num_of_nodes,
364 struct dfs_info3_param **target_nodes,
365 const struct nls_table *nls_codepage, int remap,
366 const char *searchName, bool is_unicode);
367 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
368 struct cifs_sb_info *cifs_sb,
369 struct smb3_fs_context *ctx);
370 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
371 struct kstatfs *FSData);
372 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
373 struct kstatfs *FSData);
374 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
375 __u64 cap);
376
377 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
378 struct cifs_tcon *tcon);
379 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
380 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
381 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
382 struct kstatfs *FSData);
383
384 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
385 const char *fileName, const FILE_BASIC_INFO *data,
386 const struct nls_table *nls_codepage,
387 struct cifs_sb_info *cifs_sb);
388 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
389 const FILE_BASIC_INFO *data, __u16 fid,
390 __u32 pid_of_opener);
391 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
392 struct cifs_tcon *tcon,
393 bool delete_file, __u16 fid,
394 __u32 pid_of_opener);
395 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
396 const char *file_name, __u64 size,
397 struct cifs_sb_info *cifs_sb, bool set_allocation);
398 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
399 struct cifsFileInfo *cfile, __u64 size,
400 bool set_allocation);
401
402 struct cifs_unix_set_info_args {
403 __u64 ctime;
404 __u64 atime;
405 __u64 mtime;
406 __u64 mode;
407 kuid_t uid;
408 kgid_t gid;
409 dev_t device;
410 };
411
412 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
413 struct cifs_tcon *tcon,
414 const struct cifs_unix_set_info_args *args,
415 u16 fid, u32 pid_of_opener);
416
417 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
418 struct cifs_tcon *tcon, const char *file_name,
419 const struct cifs_unix_set_info_args *args,
420 const struct nls_table *nls_codepage,
421 int remap);
422
423 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
424 umode_t mode, struct cifs_tcon *tcon,
425 const char *name, struct cifs_sb_info *cifs_sb);
426 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
427 const char *name, struct cifs_sb_info *cifs_sb);
428 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
429 const char *name, __u16 type,
430 const struct nls_table *nls_codepage,
431 int remap_special_chars);
432 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
433 const char *name, struct cifs_sb_info *cifs_sb);
434 extern int CIFSSMBRename(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 CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
438 int netfid, const char *target_name,
439 const struct nls_table *nls_codepage,
440 int remap_special_chars);
441 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
442 const char *from_name, const char *to_name,
443 struct cifs_sb_info *cifs_sb);
444 extern int CIFSUnixCreateHardLink(const unsigned int xid,
445 struct cifs_tcon *tcon,
446 const char *fromName, const char *toName,
447 const struct nls_table *nls_codepage,
448 int remap_special_chars);
449 extern int CIFSUnixCreateSymLink(const unsigned int xid,
450 struct cifs_tcon *tcon,
451 const char *fromName, const char *toName,
452 const struct nls_table *nls_codepage, int remap);
453 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
454 struct cifs_tcon *tcon,
455 const unsigned char *searchName, char **syminfo,
456 const struct nls_table *nls_codepage, int remap);
457 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
458 __u16 fid, char **symlinkinfo,
459 const struct nls_table *nls_codepage);
460 extern int CIFSSMB_set_compression(const unsigned int xid,
461 struct cifs_tcon *tcon, __u16 fid);
462 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
463 int *oplock, FILE_ALL_INFO *buf);
464 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
465 const char *fileName, const int disposition,
466 const int access_flags, const int omode,
467 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
468 const struct nls_table *nls_codepage, int remap);
469 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
470 u32 posix_flags, __u64 mode, __u16 *netfid,
471 FILE_UNIX_BASIC_INFO *pRetData,
472 __u32 *pOplock, const char *name,
473 const struct nls_table *nls_codepage, int remap);
474 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
475 const int smb_file_id);
476
477 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
478 const int smb_file_id);
479
480 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
481 unsigned int *nbytes, char **buf,
482 int *return_buf_type);
483 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
484 unsigned int *nbytes, const char *buf);
485 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
486 unsigned int *nbytes, struct kvec *iov, const int nvec);
487 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
488 const char *search_name, __u64 *inode_number,
489 const struct nls_table *nls_codepage,
490 int remap);
491
492 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
493 const __u16 netfid, const __u8 lock_type,
494 const __u32 num_unlock, const __u32 num_lock,
495 LOCKING_ANDX_RANGE *buf);
496 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
497 const __u16 netfid, const __u32 netpid, const __u64 len,
498 const __u64 offset, const __u32 numUnlock,
499 const __u32 numLock, const __u8 lockType,
500 const bool waitFlag, const __u8 oplock_level);
501 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
502 const __u16 smb_file_id, const __u32 netpid,
503 const loff_t start_offset, const __u64 len,
504 struct file_lock *, const __u16 lock_type,
505 const bool waitFlag);
506 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
507 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
508 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
509
510 extern struct cifs_ses *sesInfoAlloc(void);
511 extern void sesInfoFree(struct cifs_ses *);
512 extern struct cifs_tcon *tconInfoAlloc(void);
513 extern void tconInfoFree(struct cifs_tcon *);
514
515 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
516 __u32 *pexpected_response_sequence_number);
517 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
518 __u32 *);
519 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
520 extern int cifs_verify_signature(struct smb_rqst *rqst,
521 struct TCP_Server_Info *server,
522 __u32 expected_sequence_number);
523 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
524 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
525 extern int calc_seckey(struct cifs_ses *);
526 extern int generate_smb30signingkey(struct cifs_ses *ses,
527 struct TCP_Server_Info *server);
528 extern int generate_smb311signingkey(struct cifs_ses *ses,
529 struct TCP_Server_Info *server);
530
531 #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
532 extern int CIFSSMBCopy(unsigned int xid,
533 struct cifs_tcon *source_tcon,
534 const char *fromName,
535 const __u16 target_tid,
536 const char *toName, const int flags,
537 const struct nls_table *nls_codepage,
538 int remap_special_chars);
539 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
540 const unsigned char *searchName,
541 const unsigned char *ea_name, char *EAData,
542 size_t bufsize, struct cifs_sb_info *cifs_sb);
543 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
544 const char *fileName, const char *ea_name,
545 const void *ea_value, const __u16 ea_value_len,
546 const struct nls_table *nls_codepage,
547 struct cifs_sb_info *cifs_sb);
548 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
549 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
550 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
551 struct cifs_ntsd *, __u32, int);
552 extern int cifs_do_get_acl(const unsigned int xid, struct cifs_tcon *tcon,
553 const unsigned char *searchName,
554 struct posix_acl **acl, const int acl_type,
555 const struct nls_table *nls_codepage, int remap);
556 extern int cifs_do_set_acl(const unsigned int xid, struct cifs_tcon *tcon,
557 const unsigned char *fileName,
558 const struct posix_acl *acl, const int acl_type,
559 const struct nls_table *nls_codepage, int remap);
560 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
561 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
562 #endif /* CIFS_ALLOW_INSECURE_LEGACY */
563 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
564 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
565 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
566 struct cifs_sb_info *cifs_sb,
567 struct cifs_fattr *fattr,
568 const unsigned char *path);
569 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
570 const struct nls_table *codepage);
571
572 extern struct TCP_Server_Info *
573 cifs_find_tcp_session(struct smb3_fs_context *ctx);
574
575 extern void cifs_put_smb_ses(struct cifs_ses *ses);
576
577 extern struct cifs_ses *
578 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx);
579
580 void cifs_readdata_release(struct kref *refcount);
581 int cifs_async_readv(struct cifs_readdata *rdata);
582 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
583
584 int cifs_async_writev(struct cifs_writedata *wdata,
585 void (*release)(struct kref *kref));
586 void cifs_writev_complete(struct work_struct *work);
587 struct cifs_writedata *cifs_writedata_alloc(work_func_t complete);
588 void cifs_writedata_release(struct kref *refcount);
589 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
590 struct cifs_sb_info *cifs_sb,
591 const unsigned char *path, char *pbuf,
592 unsigned int *pbytes_read);
593 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
594 struct cifs_sb_info *cifs_sb,
595 const unsigned char *path, char *pbuf,
596 unsigned int *pbytes_written);
597 int __cifs_calc_signature(struct smb_rqst *rqst,
598 struct TCP_Server_Info *server, char *signature,
599 struct shash_desc *shash);
600 enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
601 enum securityEnum);
602 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
603 void cifs_aio_ctx_release(struct kref *refcount);
604
605 int cifs_alloc_hash(const char *name, struct shash_desc **sdesc);
606 void cifs_free_hash(struct shash_desc **sdesc);
607
608 struct cifs_chan *
609 cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
610 int cifs_try_adding_channels(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses);
611 bool is_server_using_iface(struct TCP_Server_Info *server,
612 struct cifs_server_iface *iface);
613 bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
614 void cifs_ses_mark_for_reconnect(struct cifs_ses *ses);
615
616 unsigned int
617 cifs_ses_get_chan_index(struct cifs_ses *ses,
618 struct TCP_Server_Info *server);
619 void
620 cifs_chan_set_in_reconnect(struct cifs_ses *ses,
621 struct TCP_Server_Info *server);
622 void
623 cifs_chan_clear_in_reconnect(struct cifs_ses *ses,
624 struct TCP_Server_Info *server);
625 bool
626 cifs_chan_in_reconnect(struct cifs_ses *ses,
627 struct TCP_Server_Info *server);
628 void
629 cifs_chan_set_need_reconnect(struct cifs_ses *ses,
630 struct TCP_Server_Info *server);
631 void
632 cifs_chan_clear_need_reconnect(struct cifs_ses *ses,
633 struct TCP_Server_Info *server);
634 bool
635 cifs_chan_needs_reconnect(struct cifs_ses *ses,
636 struct TCP_Server_Info *server);
637 bool
638 cifs_chan_is_iface_active(struct cifs_ses *ses,
639 struct TCP_Server_Info *server);
640 int
641 cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server);
642 int
643 SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount);
644
645 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
646 int copy_path_name(char *dst, const char *src);
647 int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
648 int resp_buftype,
649 struct cifs_search_info *srch_inf);
650
651 struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
652 void cifs_put_tcp_super(struct super_block *sb);
653 int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix);
654 char *extract_hostname(const char *unc);
655 char *extract_sharename(const char *unc);
656
657 #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)658 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
659 const char *old_path,
660 const struct nls_table *nls_codepage,
661 struct dfs_info3_param *referral, int remap)
662 {
663 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
664 referral, NULL);
665 }
666
667 int match_target_ip(struct TCP_Server_Info *server,
668 const char *share, size_t share_len,
669 bool *result);
670 int cifs_inval_name_dfs_link_error(const unsigned int xid,
671 struct cifs_tcon *tcon,
672 struct cifs_sb_info *cifs_sb,
673 const char *full_path,
674 bool *islink);
675 #else
cifs_inval_name_dfs_link_error(const unsigned int xid,struct cifs_tcon * tcon,struct cifs_sb_info * cifs_sb,const char * full_path,bool * islink)676 static inline int cifs_inval_name_dfs_link_error(const unsigned int xid,
677 struct cifs_tcon *tcon,
678 struct cifs_sb_info *cifs_sb,
679 const char *full_path,
680 bool *islink)
681 {
682 *islink = false;
683 return 0;
684 }
685 #endif
686
cifs_create_options(struct cifs_sb_info * cifs_sb,int options)687 static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
688 {
689 if (cifs_sb && (backup_cred(cifs_sb)))
690 return options | CREATE_OPEN_BACKUP_INTENT;
691 else
692 return options;
693 }
694
695 struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon);
696 void cifs_put_tcon_super(struct super_block *sb);
697 int cifs_wait_for_server_reconnect(struct TCP_Server_Info *server, bool retry);
698
699 #endif /* _CIFSPROTO_H */
700