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author | Steve French <smfrench@austin.rr.com> | 2005-04-29 05:41:05 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-29 05:41:05 (GMT) |
commit | 6a0b48245a135cd132e747815854e3999967f8a7 (patch) | |
tree | 55fffb67b924fbca2a5a16e83100a5d1000daaf4 /fs/cifs/misc.c | |
parent | cbe0476fa6a76b01b79e7c117963d45ed0a28758 (diff) | |
download | linux-fsl-qoriq-6a0b48245a135cd132e747815854e3999967f8a7.tar.xz |
[PATCH] cifs: Add new mount parm mapchars
For handling seven special characters that shells use for filenames.
This first parts implements conversions from Unicode.
Signed-off-by: Steve French
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/cifs/misc.c')
-rw-r--r-- | fs/cifs/misc.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index 7b38d30..f2a0260 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -514,3 +514,72 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length) printk( " | %s\n", debug_line); return; } + +#ifdef CONFIG_CIFS_EXPERIMENTAL +/* Windows maps these to the user defined 16 bit Unicode range since they are + reserved symbols (along with \ and /), otherwise illegal to store + in filenames in NTFS */ +#define UNI_ASTERIK cpu_to_le16('*' + 0xF000) +#define UNI_QUESTION cpu_to_le16('?' + 0xF000) +#define UNI_COLON cpu_to_le16(':' + 0xF000) +#define UNI_GRTRTHAN cpu_to_le16('>' + 0xF000) +#define UNI_LESSTHAN cpu_to_le16('<' + 0xF000) +#define UNI_PIPE cpu_to_le16('|' + 0xF000) +#define UNI_SLASH cpu_to_le16('\\' + 0xF000) + +/* Convert 16 bit Unicode pathname from wire format to string in current code + page. Conversion may involve remapping up the seven characters that are + only legal in POSIX-like OS (if they are present in the string). Path + names are little endian 16 bit Unicode on the wire */ +int +cifs_convertUCSpath(char *target, const __le16 * source, int maxlen, + const struct nls_table * cp) +{ + int i,j,len; + wchar_t src_char; + + for(i = 0, j = 0; i < maxlen; i++) { + src_char = le16_to_cpu(source[i]); + switch (src_char) { + case 0: + goto cUCS_out; /* BB check this BB */ + case UNI_COLON: + target[j] = ':'; + break; + case UNI_ASTERIK: + target[j] = '*'; + break; + case UNI_QUESTION: + target[j] = '?'; + break; + case UNI_SLASH: + target[j] = '\\'; /* BB check this - is there risk here of converting path sep BB */ + break; + case UNI_PIPE: + target[j] = '|'; + break; + case UNI_GRTRTHAN: + target[j] = '>'; + break; + case UNI_LESSTHAN: + target[j] = '<'; + default: + len = cp->uni2char(src_char, &target[j], + NLS_MAX_CHARSET_SIZE); + if(len > 0) { + j += len; + continue; + } else { + target[j] = '?'; + } + } + j++; + /* check to make sure we do not overrun callers allocated temp buffer */ + if(j >= (2 * NAME_MAX)) + break; + } +cUCS_out: + target[j] = 0; + return j; +} +#endif /* CIFS_EXPERIMENTAL */ |