linux/fs/smb/client/cifs_unicode.h
Dr. David Alan Gilbert de54845290 fs/smb/client: Use common code in client
Now we've got the common code, use it for the client as well.
Note there's a change here where we're using the server version of
UniStrcat now which had different types (__le16 vs wchar_t) but
it's not interpreting the value other than checking for 0, however
we do need casts to keep sparse happy.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-08-30 08:55:52 -05:00

77 lines
2.6 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* cifs_unicode: Unicode kernel case support
*
* Function:
* Convert a unicode character to upper or lower case using
* compressed tables.
*
* Copyright (c) International Business Machines Corp., 2000,2009
*
* Notes:
* These APIs are based on the C library functions. The semantics
* should match the C functions but with expanded size operands.
*
* The upper/lower functions are based on a table created by mkupr.
* This is a compressed table of upper and lower case conversion.
*/
#ifndef _CIFS_UNICODE_H
#define _CIFS_UNICODE_H
#include <asm/byteorder.h>
#include <linux/types.h>
#include <linux/nls.h>
#include "../../nls/nls_ucs2_utils.h"
/*
* Macs use an older "SFM" mapping of the symbols above. Fortunately it does
* not conflict (although almost does) with the mapping above.
*/
#define SFM_DOUBLEQUOTE ((__u16) 0xF020)
#define SFM_ASTERISK ((__u16) 0xF021)
#define SFM_QUESTION ((__u16) 0xF025)
#define SFM_COLON ((__u16) 0xF022)
#define SFM_GRTRTHAN ((__u16) 0xF024)
#define SFM_LESSTHAN ((__u16) 0xF023)
#define SFM_PIPE ((__u16) 0xF027)
#define SFM_SLASH ((__u16) 0xF026)
#define SFM_SPACE ((__u16) 0xF028)
#define SFM_PERIOD ((__u16) 0xF029)
/*
* Mapping mechanism to use when one of the seven reserved characters is
* encountered. We can only map using one of the mechanisms at a time
* since otherwise readdir could return directory entries which we would
* not be able to open
*
* NO_MAP_UNI_RSVD = do not perform any remapping of the character
* SFM_MAP_UNI_RSVD = map reserved characters using SFM scheme (MAC compatible)
* SFU_MAP_UNI_RSVD = map reserved characters ala SFU ("mapchars" option)
*
*/
#define NO_MAP_UNI_RSVD 0
#define SFM_MAP_UNI_RSVD 1
#define SFU_MAP_UNI_RSVD 2
#ifdef __KERNEL__
int cifs_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
const struct nls_table *cp, int map_type);
int cifs_utf16_bytes(const __le16 *from, int maxbytes,
const struct nls_table *codepage);
int cifs_strtoUTF16(__le16 *, const char *, int, const struct nls_table *);
char *cifs_strndup_from_utf16(const char *src, const int maxlen,
const bool is_unicode,
const struct nls_table *codepage);
extern int cifsConvertToUTF16(__le16 *target, const char *source, int maxlen,
const struct nls_table *cp, int mapChars);
extern int cifs_remap(struct cifs_sb_info *cifs_sb);
extern __le16 *cifs_strndup_to_utf16(const char *src, const int maxlen,
int *utf16_len, const struct nls_table *cp,
int remap);
#endif
wchar_t cifs_toupper(wchar_t in);
#endif /* _CIFS_UNICODE_H */