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-rw-r--r--fs/cifs/cifs_unicode.c97
-rw-r--r--fs/cifs/smb2misc.c12
2 files changed, 83 insertions, 26 deletions
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index a479cc552617..0aa2c5c2cfe2 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -319,6 +319,66 @@ cifs_strndup_from_utf16(const char *src, const int maxlen,
return dst;
}
+static __le16 convert_to_sfu_char(char src_char)
+{
+ __le16 dest_char;
+
+ switch (src_char) {
+ case ':':
+ dest_char = cpu_to_le16(UNI_COLON);
+ break;
+ case '*':
+ dest_char = cpu_to_le16(UNI_ASTERISK);
+ break;
+ case '?':
+ dest_char = cpu_to_le16(UNI_QUESTION);
+ break;
+ case '<':
+ dest_char = cpu_to_le16(UNI_LESSTHAN);
+ break;
+ case '>':
+ dest_char = cpu_to_le16(UNI_GRTRTHAN);
+ break;
+ case '|':
+ dest_char = cpu_to_le16(UNI_PIPE);
+ break;
+ default:
+ dest_char = 0;
+ }
+
+ return dest_char;
+}
+
+static __le16 convert_to_sfm_char(char src_char)
+{
+ __le16 dest_char;
+
+ switch (src_char) {
+ case ':':
+ dest_char = cpu_to_le16(SFM_COLON);
+ break;
+ case '*':
+ dest_char = cpu_to_le16(SFM_ASTERISK);
+ break;
+ case '?':
+ dest_char = cpu_to_le16(SFM_QUESTION);
+ break;
+ case '<':
+ dest_char = cpu_to_le16(SFM_LESSTHAN);
+ break;
+ case '>':
+ dest_char = cpu_to_le16(SFM_GRTRTHAN);
+ break;
+ case '|':
+ dest_char = cpu_to_le16(SFM_PIPE);
+ break;
+ default:
+ dest_char = 0;
+ }
+
+ return dest_char;
+}
+
/*
* Convert 16 bit Unicode pathname to wire format from string in current code
* page. Conversion may involve remapping up the six characters that are
@@ -327,7 +387,7 @@ cifs_strndup_from_utf16(const char *src, const int maxlen,
*/
int
cifsConvertToUTF16(__le16 *target, const char *source, int srclen,
- const struct nls_table *cp, int mapChars)
+ const struct nls_table *cp, int map_chars)
{
int i, charlen;
int j = 0;
@@ -335,39 +395,30 @@ cifsConvertToUTF16(__le16 *target, const char *source, int srclen,
__le16 dst_char;
wchar_t tmp;
- if (!mapChars)
+ if (map_chars == NO_MAP_UNI_RSVD)
return cifs_strtoUTF16(target, source, PATH_MAX, cp);
for (i = 0; i < srclen; j++) {
src_char = source[i];
charlen = 1;
- switch (src_char) {
- case 0:
+
+ /* check if end of string */
+ if (src_char == 0)
goto ctoUTF16_out;
- case ':':
- dst_char = cpu_to_le16(UNI_COLON);
- break;
- case '*':
- dst_char = cpu_to_le16(UNI_ASTERISK);
- break;
- case '?':
- dst_char = cpu_to_le16(UNI_QUESTION);
- break;
- case '<':
- dst_char = cpu_to_le16(UNI_LESSTHAN);
- break;
- case '>':
- dst_char = cpu_to_le16(UNI_GRTRTHAN);
- break;
- case '|':
- dst_char = cpu_to_le16(UNI_PIPE);
- break;
+
+ /* see if we must remap this char */
+ if (map_chars == SFU_MAP_UNI_RSVD)
+ dst_char = convert_to_sfu_char(src_char);
+ else if (map_chars == SFM_MAP_UNI_RSVD)
+ dst_char = convert_to_sfm_char(src_char);
+ else
+ dst_char = 0;
/*
* FIXME: We can not handle remapping backslash (UNI_SLASH)
* until all the calls to build_path_from_dentry are modified,
* as they use backslash as separator.
*/
- default:
+ if (dst_char == 0) {
charlen = cp->char2uni(source + i, srclen - i, &tmp);
dst_char = cpu_to_le16(tmp);
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 4aa7a0f07d6e..1a08a34838fc 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -379,6 +379,14 @@ cifs_convert_path_to_utf16(const char *from, struct cifs_sb_info *cifs_sb)
int len;
const char *start_of_path;
__le16 *to;
+ int map_type;
+
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SFM_CHR)
+ map_type = SFM_MAP_UNI_RSVD;
+ else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
+ map_type = SFU_MAP_UNI_RSVD;
+ else
+ map_type = NO_MAP_UNI_RSVD;
/* Windows doesn't allow paths beginning with \ */
if (from[0] == '\\')
@@ -386,9 +394,7 @@ cifs_convert_path_to_utf16(const char *from, struct cifs_sb_info *cifs_sb)
else
start_of_path = from;
to = cifs_strndup_to_utf16(start_of_path, PATH_MAX, &len,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_sb->local_nls, map_type);
return to;
}