[PATCH] cifs: finish up of special character mapping capable unicode conversion routine part 2 of 3
Signed-off-by: Steve French (sfrench@us.ibm.com)
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index f2a0260..6d7bb42 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -28,6 +28,7 @@
#include "cifs_debug.h"
#include "smberr.h"
#include "nterr.h"
+#include "cifs_unicode.h"
extern mempool_t *cifs_sm_req_poolp;
extern mempool_t *cifs_req_poolp;
@@ -515,7 +516,6 @@
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 */
@@ -552,9 +552,12 @@
case UNI_QUESTION:
target[j] = '?';
break;
- case UNI_SLASH:
- target[j] = '\\'; /* BB check this - is there risk here of converting path sep BB */
- break;
+ /* BB We can not handle remapping slash until
+ all the calls to build_path_from_dentry
+ are modified, as they use slash as separator BB */
+ /* case UNI_SLASH:
+ target[j] = '\\';
+ break;*/
case UNI_PIPE:
target[j] = '|';
break;
@@ -582,4 +585,71 @@
target[j] = 0;
return j;
}
-#endif /* CIFS_EXPERIMENTAL */
+
+/* Convert 16 bit Unicode pathname to wire format from 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
+cifsConvertToUCS(__le16 * target, const char *source, int maxlen,
+ const struct nls_table * cp, int mapChars)
+{
+ int i,j,charlen;
+ int len_remaining = maxlen;
+ char src_char;
+
+ if(!mapChars)
+ return cifs_strtoUCS((wchar_t *) target, source, PATH_MAX, cp);
+
+ for(i = 0, j = 0; i < maxlen; j++) {
+ src_char = source[i];
+ switch (src_char) {
+ case 0:
+ goto ctoUCS_out;
+ case ':':
+ target[j] = cpu_to_le16(UNI_COLON);
+ break;
+ case '*':
+ target[j] = cpu_to_le16(UNI_ASTERIK);
+ break;
+ case '?':
+ target[j] = cpu_to_le16(UNI_QUESTION);
+ break;
+ case '<':
+ target[j] = cpu_to_le16(UNI_LESSTHAN);
+ break;
+ case '>':
+ target[j] = cpu_to_le16(UNI_GRTRTHAN);
+ break;
+ case '|':
+ target[j] = cpu_to_le16(UNI_PIPE);
+ break;
+ /* BB We can not handle remapping slash until
+ all the calls to build_path_from_dentry
+ are modified, as they use slash as separator BB */
+ /* case '\\':
+ target[j] = cpu_to_le16(UNI_SLASH);
+ break;*/
+ default:
+ charlen = cp->char2uni(source+i,
+ len_remaining, target+j);
+ /* if no match, use question mark, which
+ at least in some cases servers as wild card */
+ if(charlen < 1) {
+ target[j] = cpu_to_le16(0x003f);
+ charlen = 1;
+ }
+ len_remaining -= charlen;
+ /* character may take more than one byte in the
+ the source string, but will take exactly two
+ bytes in the target string */
+ i+= charlen;
+ continue;
+ }
+ i++; /* move to next char in source string */
+ len_remaining--;
+ }
+
+ctoUCS_out:
+ return i;
+}