xref: /linux/fs/smb/server/unicode.h (revision 7a92fc8b4d20680e4c20289a670d8fca2d1f2c1b)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Some of the source code in this file came from fs/cifs/cifs_unicode.c
4  * cifs_unicode:  Unicode kernel case support
5  *
6  * Function:
7  *     Convert a unicode character to upper or lower case using
8  *     compressed tables.
9  *
10  *   Copyright (c) International Business Machines  Corp., 2000,2009
11  *
12  *
13  * Notes:
14  *     These APIs are based on the C library functions.  The semantics
15  *     should match the C functions but with expanded size operands.
16  *
17  *     The upper/lower functions are based on a table created by mkupr.
18  *     This is a compressed table of upper and lower case conversion.
19  *
20  */
21 #ifndef _SMB_UNICODE_H
22 #define _SMB_UNICODE_H
23 
24 #include <asm/byteorder.h>
25 #include <linux/types.h>
26 #include <linux/nls.h>
27 #include <linux/unicode.h>
28 #include "../../nls/nls_ucs2_utils.h"
29 
30 #ifdef __KERNEL__
31 int smb_strtoUTF16(__le16 *to, const char *from, int len,
32 		   const struct nls_table *codepage);
33 char *smb_strndup_from_utf16(const char *src, const int maxlen,
34 			     const bool is_unicode,
35 			     const struct nls_table *codepage);
36 int smbConvertToUTF16(__le16 *target, const char *source, int srclen,
37 		      const struct nls_table *cp, int mapchars);
38 char *ksmbd_extract_sharename(struct unicode_map *um, const char *treename);
39 #endif
40 
41 #endif /* _SMB_UNICODE_H */
42