1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_UNICODE_H
3 #define _LINUX_UNICODE_H
4 
5 #include <linux/init.h>
6 #include <linux/dcache.h>
7 
8 struct unicode_map {
9 	const char *charset;
10 	int version;
11 };
12 
13 int utf8_validate(const struct unicode_map *um, const struct qstr *str);
14 
15 int utf8_strncmp(const struct unicode_map *um,
16 		 const struct qstr *s1, const struct qstr *s2);
17 
18 int utf8_strncasecmp(const struct unicode_map *um,
19 		 const struct qstr *s1, const struct qstr *s2);
20 int utf8_strncasecmp_folded(const struct unicode_map *um,
21 			    const struct qstr *cf,
22 			    const struct qstr *s1);
23 
24 int utf8_normalize(const struct unicode_map *um, const struct qstr *str,
25 		   unsigned char *dest, size_t dlen);
26 
27 int utf8_casefold(const struct unicode_map *um, const struct qstr *str,
28 		  unsigned char *dest, size_t dlen);
29 
30 int utf8_casefold_hash(const struct unicode_map *um, const void *salt,
31 		       struct qstr *str);
32 
33 struct unicode_map *utf8_load(const char *version);
34 void utf8_unload(struct unicode_map *um);
35 
36 #endif /* _LINUX_UNICODE_H */
37