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CIFS: fix max ea value size
[linux-2.6-block.git] / fs / cifs / cifsproto.h
CommitLineData
1da177e4
LT		 1/*
2 * fs/cifs/cifsproto.h
3 *
366781c1 4 * Copyright (c) International Business Machines Corp., 2002,2008
1da177e4
LT		 5 * Author(s): Steve French (sfrench@us.ibm.com)
6 *
7 * This library is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published
9 * by the Free Software Foundation; either version 2.1 of the License, or
10 * (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
15 * the GNU Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this library; if not, write to the Free Software
d38d8c74 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
1da177e4
LT		 20 */
21#ifndef _CIFSPROTO_H
22#define _CIFSPROTO_H
23#include <linux/nls.h>
d683bcd3 24#include "trace.h"
1c780228
PA		 25#ifdef CONFIG_CIFS_DFS_UPCALL
26#include "dfs_cache.h"
27#endif
1da177e4
LT		 28
29struct statfs;
8af18971 30struct smb_vol;
bf5ea0e2 31struct smb_rqst;
1da177e4
LT		 32
33/*
34 *****************************************************************
35 * All Prototypes
36 *****************************************************************
37 */
38
39extern struct smb_hdr *cifs_buf_get(void);
40extern void cifs_buf_release(void *);
41extern struct smb_hdr *cifs_small_buf_get(void);
42extern void cifs_small_buf_release(void *);
6d81ed1e 43extern void free_rsp_buf(int, void *);
0496e02d
JL		 44extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
45 unsigned int /* length */);
6d5786a3
PS		 46extern unsigned int _get_xid(void);
47extern void _free_xid(unsigned int);
48#define get_xid() \
b6b38f70 49({ \
6d5786a3 50 unsigned int __xid = _get_xid(); \
f96637be
JP		 51 cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n", \
52 __func__, __xid, \
53 from_kuid(&init_user_ns, current_fsuid())); \
d683bcd3 54 trace_smb3_enter(__xid, __func__); \
b6b38f70
JP		 55 __xid; \
56})
57
6d5786a3 58#define free_xid(curr_xid) \
b6b38f70 59do { \
6d5786a3 60 _free_xid(curr_xid); \
f96637be 61 cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n", \
d683bcd3
SF		 62 __func__, curr_xid, (int)rc); \
63 if (rc) \
64 trace_smb3_exit_err(curr_xid, __func__, (int)rc); \
65 else \
66 trace_smb3_exit_done(curr_xid, __func__); \
b6b38f70 67} while (0)
4d79dba0
SP		 68extern int init_cifs_idmap(void);
69extern void exit_cifs_idmap(void);
b74cb9a8
SP		 70extern int init_cifs_spnego(void);
71extern void exit_cifs_spnego(void);
7f57356b 72extern char *build_path_from_dentry(struct dentry *);
268a635d
AA		 73extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
74 bool prefix);
6d3ea7e4
SF		 75extern char *cifs_build_path_to_root(struct smb_vol *vol,
76 struct cifs_sb_info *cifs_sb,
374402a2
SP		 77 struct cifs_tcon *tcon,
78 int add_treename);
1da177e4 79extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
c6c00919
SF		 80extern char *cifs_compose_mount_options(const char *sb_mountdata,
81 const char *fullpath, const struct dfs_info3_param *ref,
82 char **devname);
99ee4dbd 83/* extern void renew_parental_timestamps(struct dentry *direntry);*/
a6827c18
JL		 84extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
85 struct TCP_Server_Info *server);
766fdbb5 86extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
3c1bf7e4 87extern void cifs_delete_mid(struct mid_q_entry *mid);
696e420b 88extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
2dc7e1c0 89extern void cifs_wake_up_task(struct mid_q_entry *mid);
4326ed2f
PS		 90extern int cifs_handle_standard(struct TCP_Server_Info *server,
91 struct mid_q_entry *mid);
350be257 92extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
fec344e3
JL		 93extern int cifs_call_async(struct TCP_Server_Info *server,
94 struct smb_rqst *rqst,
95 mid_receive_t *receive, mid_callback_t *callback,
3349c3a7
PS		 96 mid_handle_t *handle, void *cbdata, const int flags,
97 const struct cifs_credits *exist_credits);
b8f57ee8
PS		 98extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
99 struct smb_rqst *rqst, int *resp_buf_type,
100 const int flags, struct kvec *resp_iov);
e0bba0b8
RS		 101extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
102 const int flags, const int num_rqst,
103 struct smb_rqst *rqst, int *resp_buf_type,
104 struct kvec *resp_iov);
96daf2b0 105extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
1da177e4
LT		 106 struct smb_hdr * /* input */ ,
107 struct smb_hdr * /* out */ ,
a891f0f8 108 int * /* bytes returned */ , const int);
96daf2b0 109extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
792af7b0 110 char *in_buf, int flags);
fec344e3
JL		 111extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
112 struct smb_rqst *);
113extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
114 struct smb_rqst *);
2c8f981d
JL		 115extern int cifs_check_receive(struct mid_q_entry *mid,
116 struct TCP_Server_Info *server, bool log_error);
cb7e9eab
PS		 117extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
118 unsigned int size, unsigned int *num,
335b7b62 119 struct cifs_credits *credits);
96daf2b0 120extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
d38d8c74 121 struct kvec *, int /* nvec to send */,
da502f7d
PS		 122 int * /* type of buf returned */, const int flags,
123 struct kvec * /* resp vec */);
ad7a2926 124extern int SendReceiveBlockingLock(const unsigned int xid,
96daf2b0 125 struct cifs_tcon *ptcon,
ad7a2926
SF		 126 struct smb_hdr *in_buf ,
127 struct smb_hdr *out_buf,
128 int *bytes_returned);
28ea5290 129extern int cifs_reconnect(struct TCP_Server_Info *server);
373512ec 130extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
d4e4854f 131extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
3d3ea8e6 132extern bool backup_cred(struct cifs_sb_info *);
4b18f2a9 133extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
72432ffc
PS		 134extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
135 unsigned int bytes_written);
6508d904 136extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
fe768d51
PS		 137extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
138 bool fsuid_only,
139 struct cifsFileInfo **ret_file);
8de9e86c
RS		 140extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
141 struct cifsFileInfo **ret_file);
6508d904 142extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
496902dc
RS		 143extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
144 struct cifsFileInfo **ret_file);
9ec672bd 145extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
1da177e4 146extern int decode_negTokenInit(unsigned char *security_blob, int length,
26efa0ba 147 struct TCP_Server_Info *server);
67b7626a 148extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
b979aaa1 149extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
5ffef7bf 150extern int map_smb_to_linux_error(char *buf, bool logErr);
1da177e4 151extern void header_assemble(struct smb_hdr *, char /* command */ ,
96daf2b0 152 const struct cifs_tcon *, int /* length of
1982c344 153 fixed section (word count) in two byte units */);
5815449d 154extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
96daf2b0 155 struct cifs_ses *ses,
50c2f753 156 void **request_buf);
3f618223
JL		 157extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
158 enum securityEnum requested);
58c45c58
PS		 159extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
160 const struct nls_table *nls_cp);
95390201
AB		 161extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
162extern u64 cifs_UnixTimeToNT(struct timespec64);
163extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
c4a2c08d 164 int offset);
c6723628 165extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
c11f1df5
SP		 166extern int cifs_get_writer(struct cifsInodeInfo *cinode);
167extern void cifs_put_writer(struct cifsInodeInfo *cinode);
168extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
d39a4f71
PS		 169extern int cifs_unlock_range(struct cifsFileInfo *cfile,
170 struct file_lock *flock, const unsigned int xid);
171extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
1bd5bbcb 172
fb1214e4
PS		 173extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
174 struct file *file,
175 struct tcon_link *tlink,
176 __u32 oplock);
6d5786a3
PS		 177extern int cifs_posix_open(char *full_path, struct inode **inode,
178 struct super_block *sb, int mode,
179 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
180 unsigned int xid);
4065c802 181void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
cc0bad75
JL		 182extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
183 FILE_UNIX_BASIC_INFO *info,
184 struct cifs_sb_info *cifs_sb);
c052e2b4
SP		 185extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
186 struct cifs_sb_info *);
cc0bad75 187extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
cc0bad75
JL		 188extern struct inode *cifs_iget(struct super_block *sb,
189 struct cifs_fattr *fattr);
190
1208ef1f
PS		 191extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
192 FILE_ALL_INFO *data, struct super_block *sb,
42eacf9e 193 int xid, const struct cifs_fid *fid);
1da177e4
LT		 194extern int cifs_get_inode_info_unix(struct inode **pinode,
195 const unsigned char *search_path,
6d5786a3 196 struct super_block *sb, unsigned int xid);
ed6875e0
PS		 197extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
198 unsigned int xid, char *full_path, __u32 dosattr);
199extern int cifs_rename_pending_delete(const char *full_path,
200 struct dentry *dentry,
201 const unsigned int xid);
987b21d7 202extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
0b8f18e3 203 struct cifs_fattr *fattr, struct inode *inode,
e2f8fbfb 204 bool get_mode_from_special_sid,
42eacf9e 205 const char *path, const struct cifs_fid *pfid);
a5ff3769 206extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
8abf2775 207 kuid_t, kgid_t);
fbeba8bb
SP		 208extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
209 const char *, u32 *);
42eacf9e
SF		 210extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
211 const struct cifs_fid *, u32 *);
b73b9a4b 212extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
a5ff3769 213 const char *, int);
953f8681 214
e28bc5b1
JL		 215extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
216extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
71335664
AV		 217 unsigned int to_read);
218extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
1dbe3466
LL		 219 struct page *page,
220 unsigned int page_offset,
221 unsigned int to_read);
4214ebf4 222extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
724d9f1c
PS		 223 struct cifs_sb_info *cifs_sb);
224extern int cifs_match_super(struct super_block *, void *);
f9e59bcb 225extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
04db79b0 226extern struct smb_vol *cifs_get_volume_info(char *mount_data,
c7c137b9 227 const char *devname, bool is_smb3);
56c762eb 228extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *vol);
2a9b9951 229extern void cifs_umount(struct cifs_sb_info *);
aa24d1e9 230extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
52ace1ef
SF		 231extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
232
579f9053 233extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
9645759c 234 __u64 length, __u8 type, __u16 flags,
579f9053 235 struct cifsLockInfo **conf_lock,
081c0414 236 int rw_check);
233839b1
PS		 237extern void cifs_add_pending_open(struct cifs_fid *fid,
238 struct tcon_link *tlink,
239 struct cifs_pending_open *open);
240extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
241 struct tcon_link *tlink,
242 struct cifs_pending_open *open);
243extern void cifs_del_pending_open(struct cifs_pending_open *open);
53e0e11e
PS		 244extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
245 int from_reconnect);
246extern void cifs_put_tcon(struct cifs_tcon *tcon);
815465c4
JL		 247
248#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
78d31a3a 249extern void cifs_dfs_release_automount_timer(void);
815465c4
JL		 250#else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
251#define cifs_dfs_release_automount_timer() do { } while (0)
252#endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
253
1da177e4
LT		 254void cifs_proc_init(void);
255void cifs_proc_clean(void);
256
f7ba7fe6
PS		 257extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
258extern void cifs_free_llist(struct list_head *llist);
259extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
260
286170aa
PS		 261extern int cifs_negotiate_protocol(const unsigned int xid,
262 struct cifs_ses *ses);
58c45c58
PS		 263extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
264 struct nls_table *nls_info);
38d77c50 265extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
286170aa 266extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
1da177e4 267
2e6e02ab
PS		 268extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
269 const char *tree, struct cifs_tcon *tcon,
270 const struct nls_table *);
1da177e4 271
6d5786a3 272extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
c052e2b4 273 const char *searchName, struct cifs_sb_info *cifs_sb,
2608bee7
SP		 274 __u16 *searchHandle, __u16 search_flags,
275 struct cifs_search_info *psrch_inf,
c052e2b4 276 bool msearch);
1da177e4 277
6d5786a3 278extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
2608bee7
SP		 279 __u16 searchHandle, __u16 search_flags,
280 struct cifs_search_info *psrch_inf);
1da177e4 281
6d5786a3 282extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
1da177e4
LT		 283 const __u16 search_handle);
284
6d5786a3 285extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
bcd5357f 286 u16 netfid, FILE_ALL_INFO *pFindData);
6d5786a3 287extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
68889f26
PS		 288 const char *search_Name, FILE_ALL_INFO *data,
289 int legacy /* whether to use old info level */,
290 const struct nls_table *nls_codepage, int remap);
6d5786a3 291extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
68889f26
PS		 292 const char *search_name, FILE_ALL_INFO *data,
293 const struct nls_table *nls_codepage, int remap);
1da177e4 294
6d5786a3 295extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
c8634fd3 296 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
6d5786a3 297extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
96daf2b0 298 struct cifs_tcon *tcon,
1da177e4 299 const unsigned char *searchName,
582d21e5 300 FILE_UNIX_BASIC_INFO *pFindData,
737b758c 301 const struct nls_table *nls_codepage, int remap);
1da177e4 302
6d5786a3 303extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
b669f33c
PS		 304 const char *search_name,
305 struct dfs_info3_param **target_nodes,
306 unsigned int *num_of_nodes,
307 const struct nls_table *nls_codepage, int remap);
1da177e4 308
4ecce920
AA		 309extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
310 unsigned int *num_of_nodes,
311 struct dfs_info3_param **target_nodes,
312 const struct nls_table *nls_codepage, int remap,
313 const char *searchName, bool is_unicode);
6d5786a3 314extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
2c6292ae
AV		 315 struct cifs_sb_info *cifs_sb,
316 struct smb_vol *vol);
6d5786a3 317extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
737b758c 318 struct kstatfs *FSData);
6d5786a3 319extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
20962438 320 struct kstatfs *FSData);
6d5786a3 321extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
ac67055e
JA		 322 __u64 cap);
323
6d5786a3 324extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
96daf2b0 325 struct cifs_tcon *tcon);
6d5786a3
PS		 326extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
327extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
328extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
737b758c 329 struct kstatfs *FSData);
1da177e4 330
6d5786a3 331extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
ad7a2926 332 const char *fileName, const FILE_BASIC_INFO *data,
737b758c
SF		 333 const struct nls_table *nls_codepage,
334 int remap_special_chars);
6d5786a3 335extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
2dd2dfa0
JL		 336 const FILE_BASIC_INFO *data, __u16 fid,
337 __u32 pid_of_opener);
6d5786a3
PS		 338extern int CIFSSMBSetFileDisposition(const unsigned int xid,
339 struct cifs_tcon *tcon,
340 bool delete_file, __u16 fid,
341 __u32 pid_of_opener);
1da177e4 342#if 0
6d5786a3 343extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
1da177e4
LT		 344 char *fileName, __u16 dos_attributes,
345 const struct nls_table *nls_codepage);
346#endif /* possibly unneeded function */
6d5786a3 347extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
d1433418
PS		 348 const char *file_name, __u64 size,
349 struct cifs_sb_info *cifs_sb, bool set_allocation);
6d5786a3 350extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
d1433418
PS		 351 struct cifsFileInfo *cfile, __u64 size,
352 bool set_allocation);
4e1e7fb9
JL		 353
354struct cifs_unix_set_info_args {
355 __u64 ctime;
356 __u64 atime;
357 __u64 mtime;
358 __u64 mode;
49418b2c
EB		 359 kuid_t uid;
360 kgid_t gid;
4e1e7fb9
JL		 361 dev_t device;
362};
363
6d5786a3
PS		 364extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
365 struct cifs_tcon *tcon,
3bbeeb3c
JL		 366 const struct cifs_unix_set_info_args *args,
367 u16 fid, u32 pid_of_opener);
368
6d5786a3 369extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
ff691e96 370 struct cifs_tcon *tcon, const char *file_name,
6d5786a3
PS		 371 const struct cifs_unix_set_info_args *args,
372 const struct nls_table *nls_codepage,
ff691e96 373 int remap);
1da177e4 374
6d5786a3 375extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
f436720e 376 const char *name, struct cifs_sb_info *cifs_sb);
6d5786a3 377extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
f958ca5d 378 const char *name, struct cifs_sb_info *cifs_sb);
6d5786a3 379extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
2d785a50
SF		 380 const char *name, __u16 type,
381 const struct nls_table *nls_codepage,
382 int remap_special_chars);
6d5786a3 383extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
ed6875e0 384 const char *name, struct cifs_sb_info *cifs_sb);
6d5786a3 385extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
8ceb9843
PS		 386 const char *from_name, const char *to_name,
387 struct cifs_sb_info *cifs_sb);
6d5786a3
PS		 388extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
389 int netfid, const char *target_name,
390 const struct nls_table *nls_codepage,
391 int remap_special_chars);
d6e906f1
SF		 392extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
393 const char *from_name, const char *to_name,
394 struct cifs_sb_info *cifs_sb);
6d5786a3 395extern int CIFSUnixCreateHardLink(const unsigned int xid,
96daf2b0 396 struct cifs_tcon *tcon,
1da177e4 397 const char *fromName, const char *toName,
d38d8c74 398 const struct nls_table *nls_codepage,
737b758c 399 int remap_special_chars);
6d5786a3 400extern int CIFSUnixCreateSymLink(const unsigned int xid,
96daf2b0 401 struct cifs_tcon *tcon,
1da177e4 402 const char *fromName, const char *toName,
bc8ebdc4 403 const struct nls_table *nls_codepage, int remap);
6d5786a3 404extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
96daf2b0 405 struct cifs_tcon *tcon,
460b9696 406 const unsigned char *searchName, char **syminfo,
bc8ebdc4 407 const struct nls_table *nls_codepage, int remap);
d244bf2d
PS		 408extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
409 __u16 fid, char **symlinkinfo,
410 const struct nls_table *nls_codepage);
c7f508a9
SF		 411extern int CIFSSMB_set_compression(const unsigned int xid,
412 struct cifs_tcon *tcon, __u16 fid);
d81b8a40
PS		 413extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
414 int *oplock, FILE_ALL_INFO *buf);
6d5786a3 415extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
a9d02ad4
SF		 416 const char *fileName, const int disposition,
417 const int access_flags, const int omode,
8840dee9 418 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
a9d02ad4 419 const struct nls_table *nls_codepage, int remap);
6d5786a3 420extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
8840dee9 421 u32 posix_flags, __u64 mode, __u16 *netfid,
2dd29d31
SF		 422 FILE_UNIX_BASIC_INFO *pRetData,
423 __u32 *pOplock, const char *name,
d38d8c74 424 const struct nls_table *nls_codepage, int remap);
6d5786a3 425extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
1da177e4
LT		 426 const int smb_file_id);
427
6d5786a3 428extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
b298f223
SF		 429 const int smb_file_id);
430
6d5786a3 431extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
d4ffff1f 432 unsigned int *nbytes, char **buf,
d38d8c74 433 int *return_buf_type);
6d5786a3 434extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
dbbab325 435 unsigned int *nbytes, const char *buf);
6d5786a3 436extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
ba9ad725 437 unsigned int *nbytes, struct kvec *iov, const int nvec);
6d5786a3 438extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
1208ef1f
PS		 439 const char *search_name, __u64 *inode_number,
440 const struct nls_table *nls_codepage,
441 int remap);
1da177e4 442
6d5786a3
PS		 443extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
444 const __u16 netfid, const __u8 lock_type,
445 const __u32 num_unlock, const __u32 num_lock,
446 LOCKING_ANDX_RANGE *buf);
447extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
03776f45 448 const __u16 netfid, const __u32 netpid, const __u64 len,
1da177e4
LT		 449 const __u64 offset, const __u32 numUnlock,
450 const __u32 numLock, const __u8 lockType,
12fed00d 451 const bool waitFlag, const __u8 oplock_level);
6d5786a3 452extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
4f6bcec9 453 const __u16 smb_file_id, const __u32 netpid,
c5fd363d
JL		 454 const loff_t start_offset, const __u64 len,
455 struct file_lock *, const __u16 lock_type,
456 const bool waitFlag);
2e6e02ab 457extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
766fdbb5 458extern int CIFSSMBEcho(struct TCP_Server_Info *server);
58c45c58 459extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
1da177e4 460
96daf2b0
SF		 461extern struct cifs_ses *sesInfoAlloc(void);
462extern void sesInfoFree(struct cifs_ses *);
463extern struct cifs_tcon *tconInfoAlloc(void);
464extern void tconInfoFree(struct cifs_tcon *);
1da177e4 465
bf5ea0e2
JL		 466extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
467 __u32 *pexpected_response_sequence_number);
762a4206 468extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
84afc29b 469 __u32 *);
bf5ea0e2
JL		 470extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
471extern int cifs_verify_signature(struct smb_rqst *rqst,
21e73393 472 struct TCP_Server_Info *server,
b609f06a 473 __u32 expected_sequence_number);
9ef5992e
SP		 474extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
475 const struct nls_table *);
476extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
96daf2b0 477extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
026e93dc 478extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
96daf2b0 479extern int calc_seckey(struct cifs_ses *);
373512ec
SF		 480extern int generate_smb30signingkey(struct cifs_ses *);
481extern int generate_smb311signingkey(struct cifs_ses *);
d2b91521 482
7c7b25bc 483#ifdef CONFIG_CIFS_WEAK_PW_HASH
43988d76 484extern int calc_lanman_hash(const char *password, const char *cryptkey,
4e53a3fb 485 bool encrypt, char *lnm_session_key);
7c7b25bc 486#endif /* CIFS_WEAK_PW_HASH */
0eff0e26 487#ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
6d5786a3 488extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
0eff0e26
SF		 489 const int notify_subdirs, const __u16 netfid,
490 __u32 filter, struct file *file, int multishot,
491 const struct nls_table *nls_codepage);
492#endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
6d5786a3 493extern int CIFSSMBCopy(unsigned int xid,
96daf2b0 494 struct cifs_tcon *source_tcon,
1da177e4
LT		 495 const char *fromName,
496 const __u16 target_tid,
497 const char *toName, const int flags,
50c2f753 498 const struct nls_table *nls_codepage,
737b758c 499 int remap_special_chars);
6d5786a3 500extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
31c0519f
JL		 501 const unsigned char *searchName,
502 const unsigned char *ea_name, char *EAData,
67b4c889 503 size_t bufsize, struct cifs_sb_info *cifs_sb);
6d5786a3 504extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
d38d8c74
SF		 505 const char *fileName, const char *ea_name,
506 const void *ea_value, const __u16 ea_value_len,
5517554e
RS		 507 const struct nls_table *nls_codepage,
508 struct cifs_sb_info *cifs_sb);
6d5786a3 509extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
630f3f0c 510 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
6d5786a3 511extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
a5ff3769 512 struct cifs_ntsd *, __u32, int);
6d5786a3 513extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
1da177e4 514 const unsigned char *searchName,
d38d8c74 515 char *acl_inf, const int buflen, const int acl_type,
737b758c 516 const struct nls_table *nls_codepage, int remap_special_chars);
6d5786a3 517extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
1da177e4
LT		 518 const unsigned char *fileName,
519 const char *local_acl, const int buflen, const int acl_type,
737b758c 520 const struct nls_table *nls_codepage, int remap_special_chars);
6d5786a3 521extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
8840dee9 522 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
ec06aedd 523extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
cb084b1a
SP		 524extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
525extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
750b8de6
SP		 526 struct cifs_sb_info *cifs_sb,
527 struct cifs_fattr *fattr,
528 const unsigned char *path);
ee2c9258 529extern int mdfour(unsigned char *, unsigned char *, int);
9ef5992e
SP		 530extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
531 const struct nls_table *codepage);
43988d76 532extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
ee2c9258 533 unsigned char *p24);
5072010c
PAS		 534
535extern int
536cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data,
537 const char *devname, bool is_smb3);
56c762eb
PA		 538extern void
539cifs_cleanup_volume_info_contents(struct smb_vol *volume_info);
c28c89fc 540
54be1f6c
PA		 541extern struct TCP_Server_Info *
542cifs_find_tcp_session(struct smb_vol *vol);
543
5072010c
PAS		 544extern void cifs_put_smb_ses(struct cifs_ses *ses);
545
546extern struct cifs_ses *
547cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info);
548
6993f74a 549void cifs_readdata_release(struct kref *refcount);
e28bc5b1 550int cifs_async_readv(struct cifs_readdata *rdata);
09a4707e 551int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
e28bc5b1 552
4a5c80d7
SF		 553int cifs_async_writev(struct cifs_writedata *wdata,
554 void (*release)(struct kref *kref));
c2e87640
JL		 555void cifs_writev_complete(struct work_struct *work);
556struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
557 work_func_t complete);
8e7360f6
LL		 558struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
559 work_func_t complete);
c28c89fc 560void cifs_writedata_release(struct kref *refcount);
b5be1a1c
SP		 561int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
562 struct cifs_sb_info *cifs_sb,
563 const unsigned char *path, char *pbuf,
564 unsigned int *pbytes_read);
cbb0aba6
SP		 565int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
566 struct cifs_sb_info *cifs_sb,
567 const unsigned char *path, char *pbuf,
568 unsigned int *pbytes_written);
c713c877 569int __cifs_calc_signature(struct smb_rqst *rqst,
16c568ef
AV		 570 struct TCP_Server_Info *server, char *signature,
571 struct shash_desc *shash);
ef65aaed
SP		 572enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
573 enum securityEnum);
ccf7f408
PS		 574struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
575void cifs_aio_ctx_release(struct kref *refcount);
576int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
a93864d9 577void smb2_cached_lease_break(struct work_struct *work);
82fb82be
AA		 578
579int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
580 struct sdesc **sdesc);
581void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
582
7b7f2bdf
LL		 583extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
584 unsigned int *len, unsigned int *offset);
585
a3a53b76 586void extract_unc_hostname(const char *unc, const char **h, size_t *len);
340625e6 587int copy_path_name(char *dst, const char *src);
a3a53b76 588
1c780228
PA		 589#ifdef CONFIG_CIFS_DFS_UPCALL
590static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
591 const char *old_path,
592 const struct nls_table *nls_codepage,
593 struct dfs_info3_param *referral, int remap)
594{
595 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
596 referral, NULL);
597}
598#endif
599
1da177e4 600#endif /* _CIFSPROTO_H */
Linux 6.x block layer and io_uring tree(s)