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- /* 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 */
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