1 /* SPDX-License-Identifier: LGPL-2.1 */
4 * Copyright (c) International Business Machines Corp., 2002,2008
5 * Author(s): Steve French (sfrench@us.ibm.com)
10 #include <linux/nls.h>
12 #ifdef CONFIG_CIFS_DFS_UPCALL
13 #include "dfs_cache.h"
18 struct smb3_fs_context;
21 *****************************************************************
23 *****************************************************************
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);
37 unsigned int __xid = _get_xid(); \
38 cifs_dbg(FYI, "VFS: in %s as Xid: %u with uid: %d\n", \
40 from_kuid(&init_user_ns, current_fsuid())); \
41 trace_smb3_enter(__xid, __func__); \
45 #define free_xid(curr_xid) \
47 _free_xid(curr_xid); \
48 cifs_dbg(FYI, "VFS: leaving %s (xid = %u) rc = %d\n", \
49 __func__, curr_xid, (int)rc); \
51 trace_smb3_exit_err(curr_xid, __func__, (int)rc); \
53 trace_smb3_exit_done(curr_xid, __func__); \
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,
63 extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
64 void *page, bool prefix);
65 static inline void *alloc_dentry_path(void)
70 static inline void free_dentry_path(void *page)
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,
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 *,
115 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
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);
132 cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server,
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,
148 struct cifsFileInfo **ret_file);
149 extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
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,
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,
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);
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,
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);
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 *,
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);
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,
243 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
245 unsigned int page_offset,
246 unsigned int to_read);
247 extern int cifs_setup_cifs_sb(struct cifs_sb_info *cifs_sb);
248 void cifs_mount_put_conns(struct cifs_mount_ctx *mnt_ctx);
249 int cifs_mount_get_session(struct cifs_mount_ctx *mnt_ctx);
250 int cifs_is_path_remote(struct cifs_mount_ctx *mnt_ctx);
251 int cifs_mount_get_tcon(struct cifs_mount_ctx *mnt_ctx);
252 extern int cifs_match_super(struct super_block *, void *);
253 extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx);
254 extern void cifs_umount(struct cifs_sb_info *);
255 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
256 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
258 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
259 __u64 length, __u8 type, __u16 flags,
260 struct cifsLockInfo **conf_lock,
262 extern void cifs_add_pending_open(struct cifs_fid *fid,
263 struct tcon_link *tlink,
264 struct cifs_pending_open *open);
265 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
266 struct tcon_link *tlink,
267 struct cifs_pending_open *open);
268 extern void cifs_del_pending_open(struct cifs_pending_open *open);
270 extern bool cifs_is_deferred_close(struct cifsFileInfo *cfile,
271 struct cifs_deferred_close **dclose);
273 extern void cifs_add_deferred_close(struct cifsFileInfo *cfile,
274 struct cifs_deferred_close *dclose);
276 extern void cifs_del_deferred_close(struct cifsFileInfo *cfile);
278 extern void cifs_close_deferred_file(struct cifsInodeInfo *cifs_inode);
280 extern void cifs_close_all_deferred_files(struct cifs_tcon *cifs_tcon);
282 extern void cifs_close_deferred_file_under_dentry(struct cifs_tcon *cifs_tcon,
284 extern struct TCP_Server_Info *
285 cifs_get_tcp_session(struct smb3_fs_context *ctx,
286 struct TCP_Server_Info *primary_server);
287 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
289 extern void cifs_put_tcon(struct cifs_tcon *tcon);
291 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
292 extern void cifs_dfs_release_automount_timer(void);
293 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
294 #define cifs_dfs_release_automount_timer() do { } while (0)
295 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
297 void cifs_proc_init(void);
298 void cifs_proc_clean(void);
300 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
301 extern void cifs_free_llist(struct list_head *llist);
302 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
304 extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
305 const struct nls_table *nlsc);
307 extern int cifs_negotiate_protocol(const unsigned int xid,
308 struct cifs_ses *ses,
309 struct TCP_Server_Info *server);
310 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
311 struct TCP_Server_Info *server,
312 struct nls_table *nls_info);
313 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
314 extern int CIFSSMBNegotiate(const unsigned int xid,
315 struct cifs_ses *ses,
316 struct TCP_Server_Info *server);
318 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
319 const char *tree, struct cifs_tcon *tcon,
320 const struct nls_table *);
322 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
323 const char *searchName, struct cifs_sb_info *cifs_sb,
324 __u16 *searchHandle, __u16 search_flags,
325 struct cifs_search_info *psrch_inf,
328 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
329 __u16 searchHandle, __u16 search_flags,
330 struct cifs_search_info *psrch_inf);
332 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
333 const __u16 search_handle);
335 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
336 u16 netfid, FILE_ALL_INFO *pFindData);
337 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
338 const char *search_Name, FILE_ALL_INFO *data,
339 int legacy /* whether to use old info level */,
340 const struct nls_table *nls_codepage, int remap);
341 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
342 const char *search_name, FILE_ALL_INFO *data,
343 const struct nls_table *nls_codepage, int remap);
345 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
346 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
347 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
348 struct cifs_tcon *tcon,
349 const unsigned char *searchName,
350 FILE_UNIX_BASIC_INFO *pFindData,
351 const struct nls_table *nls_codepage, int remap);
353 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
354 const char *search_name,
355 struct dfs_info3_param **target_nodes,
356 unsigned int *num_of_nodes,
357 const struct nls_table *nls_codepage, int remap);
359 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
360 unsigned int *num_of_nodes,
361 struct dfs_info3_param **target_nodes,
362 const struct nls_table *nls_codepage, int remap,
363 const char *searchName, bool is_unicode);
364 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
365 struct cifs_sb_info *cifs_sb,
366 struct smb3_fs_context *ctx);
367 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
368 struct kstatfs *FSData);
369 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
370 struct kstatfs *FSData);
371 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
374 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
375 struct cifs_tcon *tcon);
376 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
377 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
378 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
379 struct kstatfs *FSData);
381 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
382 const char *fileName, const FILE_BASIC_INFO *data,
383 const struct nls_table *nls_codepage,
384 struct cifs_sb_info *cifs_sb);
385 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
386 const FILE_BASIC_INFO *data, __u16 fid,
387 __u32 pid_of_opener);
388 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
389 struct cifs_tcon *tcon,
390 bool delete_file, __u16 fid,
391 __u32 pid_of_opener);
392 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
393 const char *file_name, __u64 size,
394 struct cifs_sb_info *cifs_sb, bool set_allocation);
395 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
396 struct cifsFileInfo *cfile, __u64 size,
397 bool set_allocation);
399 struct cifs_unix_set_info_args {
409 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
410 struct cifs_tcon *tcon,
411 const struct cifs_unix_set_info_args *args,
412 u16 fid, u32 pid_of_opener);
414 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
415 struct cifs_tcon *tcon, const char *file_name,
416 const struct cifs_unix_set_info_args *args,
417 const struct nls_table *nls_codepage,
420 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
421 umode_t mode, struct cifs_tcon *tcon,
422 const char *name, struct cifs_sb_info *cifs_sb);
423 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
424 const char *name, struct cifs_sb_info *cifs_sb);
425 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
426 const char *name, __u16 type,
427 const struct nls_table *nls_codepage,
428 int remap_special_chars);
429 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
430 const char *name, struct cifs_sb_info *cifs_sb);
431 extern int CIFSSMBRename(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 CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
435 int netfid, const char *target_name,
436 const struct nls_table *nls_codepage,
437 int remap_special_chars);
438 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
439 const char *from_name, const char *to_name,
440 struct cifs_sb_info *cifs_sb);
441 extern int CIFSUnixCreateHardLink(const unsigned int xid,
442 struct cifs_tcon *tcon,
443 const char *fromName, const char *toName,
444 const struct nls_table *nls_codepage,
445 int remap_special_chars);
446 extern int CIFSUnixCreateSymLink(const unsigned int xid,
447 struct cifs_tcon *tcon,
448 const char *fromName, const char *toName,
449 const struct nls_table *nls_codepage, int remap);
450 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
451 struct cifs_tcon *tcon,
452 const unsigned char *searchName, char **syminfo,
453 const struct nls_table *nls_codepage, int remap);
454 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
455 __u16 fid, char **symlinkinfo,
456 const struct nls_table *nls_codepage);
457 extern int CIFSSMB_set_compression(const unsigned int xid,
458 struct cifs_tcon *tcon, __u16 fid);
459 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
460 int *oplock, FILE_ALL_INFO *buf);
461 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
462 const char *fileName, const int disposition,
463 const int access_flags, const int omode,
464 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
465 const struct nls_table *nls_codepage, int remap);
466 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
467 u32 posix_flags, __u64 mode, __u16 *netfid,
468 FILE_UNIX_BASIC_INFO *pRetData,
469 __u32 *pOplock, const char *name,
470 const struct nls_table *nls_codepage, int remap);
471 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
472 const int smb_file_id);
474 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
475 const int smb_file_id);
477 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
478 unsigned int *nbytes, char **buf,
479 int *return_buf_type);
480 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
481 unsigned int *nbytes, const char *buf);
482 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
483 unsigned int *nbytes, struct kvec *iov, const int nvec);
484 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
485 const char *search_name, __u64 *inode_number,
486 const struct nls_table *nls_codepage,
489 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
490 const __u16 netfid, const __u8 lock_type,
491 const __u32 num_unlock, const __u32 num_lock,
492 LOCKING_ANDX_RANGE *buf);
493 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
494 const __u16 netfid, const __u32 netpid, const __u64 len,
495 const __u64 offset, const __u32 numUnlock,
496 const __u32 numLock, const __u8 lockType,
497 const bool waitFlag, const __u8 oplock_level);
498 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
499 const __u16 smb_file_id, const __u32 netpid,
500 const loff_t start_offset, const __u64 len,
501 struct file_lock *, const __u16 lock_type,
502 const bool waitFlag);
503 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
504 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
505 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
507 extern struct cifs_ses *sesInfoAlloc(void);
508 extern void sesInfoFree(struct cifs_ses *);
509 extern struct cifs_tcon *tconInfoAlloc(void);
510 extern void tconInfoFree(struct cifs_tcon *);
512 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
513 __u32 *pexpected_response_sequence_number);
514 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
516 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
517 extern int cifs_verify_signature(struct smb_rqst *rqst,
518 struct TCP_Server_Info *server,
519 __u32 expected_sequence_number);
520 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
521 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
522 extern int calc_seckey(struct cifs_ses *);
523 extern int generate_smb30signingkey(struct cifs_ses *ses,
524 struct TCP_Server_Info *server);
525 extern int generate_smb311signingkey(struct cifs_ses *ses,
526 struct TCP_Server_Info *server);
528 #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
529 extern int CIFSSMBCopy(unsigned int xid,
530 struct cifs_tcon *source_tcon,
531 const char *fromName,
532 const __u16 target_tid,
533 const char *toName, const int flags,
534 const struct nls_table *nls_codepage,
535 int remap_special_chars);
536 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
537 const unsigned char *searchName,
538 const unsigned char *ea_name, char *EAData,
539 size_t bufsize, struct cifs_sb_info *cifs_sb);
540 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
541 const char *fileName, const char *ea_name,
542 const void *ea_value, const __u16 ea_value_len,
543 const struct nls_table *nls_codepage,
544 struct cifs_sb_info *cifs_sb);
545 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
546 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
547 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
548 struct cifs_ntsd *, __u32, int);
549 extern int cifs_do_get_acl(const unsigned int xid, struct cifs_tcon *tcon,
550 const unsigned char *searchName,
551 struct posix_acl **acl, const int acl_type,
552 const struct nls_table *nls_codepage, int remap);
553 extern int cifs_do_set_acl(const unsigned int xid, struct cifs_tcon *tcon,
554 const unsigned char *fileName,
555 const struct posix_acl *acl, const int acl_type,
556 const struct nls_table *nls_codepage, int remap);
557 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
558 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
559 #endif /* CIFS_ALLOW_INSECURE_LEGACY */
560 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
561 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
562 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
563 struct cifs_sb_info *cifs_sb,
564 struct cifs_fattr *fattr,
565 const unsigned char *path);
566 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
567 const struct nls_table *codepage);
569 extern struct TCP_Server_Info *
570 cifs_find_tcp_session(struct smb3_fs_context *ctx);
572 extern void cifs_put_smb_ses(struct cifs_ses *ses);
574 extern struct cifs_ses *
575 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx);
577 void cifs_readdata_release(struct kref *refcount);
578 int cifs_async_readv(struct cifs_readdata *rdata);
579 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
581 int cifs_async_writev(struct cifs_writedata *wdata,
582 void (*release)(struct kref *kref));
583 void cifs_writev_complete(struct work_struct *work);
584 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
585 work_func_t complete);
586 struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
587 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 *,
602 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
603 void cifs_aio_ctx_release(struct kref *refcount);
604 int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
606 int cifs_alloc_hash(const char *name, struct shash_desc **sdesc);
607 void cifs_free_hash(struct shash_desc **sdesc);
609 void rqst_page_get_length(const struct smb_rqst *rqst, unsigned int page,
610 unsigned int *len, unsigned int *offset);
612 cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
613 int cifs_try_adding_channels(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses);
614 bool is_server_using_iface(struct TCP_Server_Info *server,
615 struct cifs_server_iface *iface);
616 bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
617 void cifs_ses_mark_for_reconnect(struct cifs_ses *ses);
620 cifs_ses_get_chan_index(struct cifs_ses *ses,
621 struct TCP_Server_Info *server);
623 cifs_chan_set_in_reconnect(struct cifs_ses *ses,
624 struct TCP_Server_Info *server);
626 cifs_chan_clear_in_reconnect(struct cifs_ses *ses,
627 struct TCP_Server_Info *server);
629 cifs_chan_in_reconnect(struct cifs_ses *ses,
630 struct TCP_Server_Info *server);
632 cifs_chan_set_need_reconnect(struct cifs_ses *ses,
633 struct TCP_Server_Info *server);
635 cifs_chan_clear_need_reconnect(struct cifs_ses *ses,
636 struct TCP_Server_Info *server);
638 cifs_chan_needs_reconnect(struct cifs_ses *ses,
639 struct TCP_Server_Info *server);
641 cifs_chan_is_iface_active(struct cifs_ses *ses,
642 struct TCP_Server_Info *server);
644 cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server);
646 SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount);
648 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
649 int copy_path_name(char *dst, const char *src);
650 int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
652 struct cifs_search_info *srch_inf);
654 struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
655 void cifs_put_tcp_super(struct super_block *sb);
656 int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix);
657 char *extract_hostname(const char *unc);
658 char *extract_sharename(const char *unc);
660 #ifdef CONFIG_CIFS_DFS_UPCALL
661 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
662 const char *old_path,
663 const struct nls_table *nls_codepage,
664 struct dfs_info3_param *referral, int remap)
666 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
670 int match_target_ip(struct TCP_Server_Info *server,
671 const char *share, size_t share_len,
674 int cifs_dfs_query_info_nonascii_quirk(const unsigned int xid,
675 struct cifs_tcon *tcon,
676 struct cifs_sb_info *cifs_sb,
677 const char *dfs_link_path);
680 static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
682 if (cifs_sb && (backup_cred(cifs_sb)))
683 return options | CREATE_OPEN_BACKUP_INTENT;
688 struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon);
689 void cifs_put_tcon_super(struct super_block *sb);
691 #endif /* _CIFSPROTO_H */