138c8a9a5SSteve French /* SPDX-License-Identifier: GPL-2.0-or-later */ 238c8a9a5SSteve French /* 338c8a9a5SSteve French * cifs_unicode: Unicode kernel case support 438c8a9a5SSteve French * 538c8a9a5SSteve French * Function: 638c8a9a5SSteve French * Convert a unicode character to upper or lower case using 738c8a9a5SSteve French * compressed tables. 838c8a9a5SSteve French * 938c8a9a5SSteve French * Copyright (c) International Business Machines Corp., 2000,2009 1038c8a9a5SSteve French * 1138c8a9a5SSteve French * Notes: 1238c8a9a5SSteve French * These APIs are based on the C library functions. The semantics 1338c8a9a5SSteve French * should match the C functions but with expanded size operands. 1438c8a9a5SSteve French * 1538c8a9a5SSteve French * The upper/lower functions are based on a table created by mkupr. 1638c8a9a5SSteve French * This is a compressed table of upper and lower case conversion. 1738c8a9a5SSteve French */ 1838c8a9a5SSteve French #ifndef _CIFS_UNICODE_H 1938c8a9a5SSteve French #define _CIFS_UNICODE_H 2038c8a9a5SSteve French 2138c8a9a5SSteve French #include <asm/byteorder.h> 2238c8a9a5SSteve French #include <linux/types.h> 2338c8a9a5SSteve French #include <linux/nls.h> 24*de548452SDr. David Alan Gilbert #include "../../nls/nls_ucs2_utils.h" 2538c8a9a5SSteve French 2638c8a9a5SSteve French /* 2738c8a9a5SSteve French * Macs use an older "SFM" mapping of the symbols above. Fortunately it does 2838c8a9a5SSteve French * not conflict (although almost does) with the mapping above. 2938c8a9a5SSteve French */ 3038c8a9a5SSteve French 3138c8a9a5SSteve French #define SFM_DOUBLEQUOTE ((__u16) 0xF020) 3238c8a9a5SSteve French #define SFM_ASTERISK ((__u16) 0xF021) 3338c8a9a5SSteve French #define SFM_QUESTION ((__u16) 0xF025) 3438c8a9a5SSteve French #define SFM_COLON ((__u16) 0xF022) 3538c8a9a5SSteve French #define SFM_GRTRTHAN ((__u16) 0xF024) 3638c8a9a5SSteve French #define SFM_LESSTHAN ((__u16) 0xF023) 3738c8a9a5SSteve French #define SFM_PIPE ((__u16) 0xF027) 3838c8a9a5SSteve French #define SFM_SLASH ((__u16) 0xF026) 3938c8a9a5SSteve French #define SFM_SPACE ((__u16) 0xF028) 4038c8a9a5SSteve French #define SFM_PERIOD ((__u16) 0xF029) 4138c8a9a5SSteve French 4238c8a9a5SSteve French /* 4338c8a9a5SSteve French * Mapping mechanism to use when one of the seven reserved characters is 4438c8a9a5SSteve French * encountered. We can only map using one of the mechanisms at a time 4538c8a9a5SSteve French * since otherwise readdir could return directory entries which we would 4638c8a9a5SSteve French * not be able to open 4738c8a9a5SSteve French * 4838c8a9a5SSteve French * NO_MAP_UNI_RSVD = do not perform any remapping of the character 4938c8a9a5SSteve French * SFM_MAP_UNI_RSVD = map reserved characters using SFM scheme (MAC compatible) 5038c8a9a5SSteve French * SFU_MAP_UNI_RSVD = map reserved characters ala SFU ("mapchars" option) 5138c8a9a5SSteve French * 5238c8a9a5SSteve French */ 5338c8a9a5SSteve French #define NO_MAP_UNI_RSVD 0 5438c8a9a5SSteve French #define SFM_MAP_UNI_RSVD 1 5538c8a9a5SSteve French #define SFU_MAP_UNI_RSVD 2 5638c8a9a5SSteve French 5738c8a9a5SSteve French #ifdef __KERNEL__ 5838c8a9a5SSteve French int cifs_from_utf16(char *to, const __le16 *from, int tolen, int fromlen, 5938c8a9a5SSteve French const struct nls_table *cp, int map_type); 6038c8a9a5SSteve French int cifs_utf16_bytes(const __le16 *from, int maxbytes, 6138c8a9a5SSteve French const struct nls_table *codepage); 6238c8a9a5SSteve French int cifs_strtoUTF16(__le16 *, const char *, int, const struct nls_table *); 6338c8a9a5SSteve French char *cifs_strndup_from_utf16(const char *src, const int maxlen, 6438c8a9a5SSteve French const bool is_unicode, 6538c8a9a5SSteve French const struct nls_table *codepage); 6638c8a9a5SSteve French extern int cifsConvertToUTF16(__le16 *target, const char *source, int maxlen, 6738c8a9a5SSteve French const struct nls_table *cp, int mapChars); 6838c8a9a5SSteve French extern int cifs_remap(struct cifs_sb_info *cifs_sb); 6938c8a9a5SSteve French extern __le16 *cifs_strndup_to_utf16(const char *src, const int maxlen, 7038c8a9a5SSteve French int *utf16_len, const struct nls_table *cp, 7138c8a9a5SSteve French int remap); 7238c8a9a5SSteve French #endif 7338c8a9a5SSteve French 7438c8a9a5SSteve French wchar_t cifs_toupper(wchar_t in); 7538c8a9a5SSteve French 7638c8a9a5SSteve French #endif /* _CIFS_UNICODE_H */ 77