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udf: Convert ident strings to proper charset 

iocharset= mount option specifies the character set used on *console*
(not on disk). So even dstrings from VRS need to be converted from CS0
to the specified charset and not always UTF-8. This is barely user
visible as those strings are shown only in UDF debug messages.

CC: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Signed-off-by: Jan Kara <jack@suse.cz>
hifive-unleashed-5.1
Jan Kara 2018-04-16 15:44:19 +02:00
parent b8a41c44a4
commit e966fc8d99
3 changed files with 14 additions and 6 deletions
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4
fs/udf/super.c
View File

@ -890,14 +890,14 @@ static int udf_load_pvoldesc(struct super_block *sb, sector_t block)
#endif
}
ret = udf_dstrCS0toUTF8(outstr, 31, pvoldesc->volIdent, 32);
ret = udf_dstrCS0toChar(sb, outstr, 31, pvoldesc->volIdent, 32);
if (ret < 0)
goto out_bh;
strncpy(UDF_SB(sb)->s_volume_ident, outstr, ret);
udf_debug("volIdent[] = '%s'\n", UDF_SB(sb)->s_volume_ident);
ret = udf_dstrCS0toUTF8(outstr, 127, pvoldesc->volSetIdent, 128);
ret = udf_dstrCS0toChar(sb, outstr, 127, pvoldesc->volSetIdent, 128);
if (ret < 0)
goto out_bh;

3
fs/udf/udfdecl.h
View File

@ -220,7 +220,8 @@ extern int udf_get_filename(struct super_block *, const uint8_t *, int,
uint8_t *, int);
extern int udf_put_filename(struct super_block *, const uint8_t *, int,
uint8_t *, int);
extern int udf_dstrCS0toUTF8(uint8_t *, int, const uint8_t *, int);
extern int udf_dstrCS0toChar(struct super_block *, uint8_t *, int,
const uint8_t *, int);
/* ialloc.c */
extern void udf_free_inode(struct inode *);

13
fs/udf/unicode.c
View File

@ -295,9 +295,10 @@ try_again:
return u_len;
}
int udf_dstrCS0toUTF8(uint8_t *utf_o, int o_len,
int udf_dstrCS0toChar(struct super_block *sb, uint8_t *utf_o, int o_len,
const uint8_t *ocu_i, int i_len)
{
int (*conv_f)(wchar_t, unsigned char *, int);
int s_len = 0;
if (i_len > 0) {
@ -309,8 +310,14 @@ int udf_dstrCS0toUTF8(uint8_t *utf_o, int o_len,
}
}
return udf_name_from_CS0(utf_o, o_len, ocu_i, s_len,
udf_uni2char_utf8, 0);
if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
conv_f = udf_uni2char_utf8;
} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {
conv_f = UDF_SB(sb)->s_nls_map->uni2char;
} else
BUG();
return udf_name_from_CS0(utf_o, o_len, ocu_i, s_len, conv_f, 0);
}
int udf_get_filename(struct super_block *sb, const uint8_t *sname, int slen,