TOMOYO: Support longer pathname.
Allow pathnames longer than 4000 bytes.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/tomoyo/mount.c b/security/tomoyo/mount.c
index aeac619..7c1c7fd 100644
--- a/security/tomoyo/mount.c
+++ b/security/tomoyo/mount.c
@@ -25,57 +25,6 @@
#define TOMOYO_MOUNT_MAKE_SHARED_KEYWORD "--make-shared"
/**
- * tomoyo_encode2: Encode binary string to ascii string.
- *
- * @str: String in binary format.
- *
- * Returns pointer to @str in ascii format on success, NULL otherwise.
- *
- * This function uses kzalloc(), so caller must kfree() if this function
- * didn't return NULL.
- */
-static char *tomoyo_encode2(const char *str)
-{
- int len = 0;
- const char *p = str;
- char *cp;
- char *cp0;
- if (!p)
- return NULL;
- while (*p) {
- const unsigned char c = *p++;
- if (c == '\\')
- len += 2;
- else if (c > ' ' && c < 127)
- len++;
- else
- len += 4;
- }
- len++;
- /* Reserve space for appending "/". */
- cp = kzalloc(len + 10, GFP_NOFS);
- if (!cp)
- return NULL;
- cp0 = cp;
- p = str;
- while (*p) {
- const unsigned char c = *p++;
- if (c == '\\') {
- *cp++ = '\\';
- *cp++ = '\\';
- } else if (c > ' ' && c < 127) {
- *cp++ = c;
- } else {
- *cp++ = '\\';
- *cp++ = (c >> 6) + '0';
- *cp++ = ((c >> 3) & 7) + '0';
- *cp++ = (c & 7) + '0';
- }
- }
- return cp0;
-}
-
-/**
* tomoyo_mount_acl2 - Check permission for mount() operation.
*
* @r: Pointer to "struct tomoyo_request_info".
@@ -104,7 +53,7 @@
int error = -ENOMEM;
/* Get fstype. */
- requested_type = tomoyo_encode2(type);
+ requested_type = tomoyo_encode(type);
if (!requested_type)
goto out;
rtype.name = requested_type;
@@ -155,7 +104,7 @@
/* Map dev_name to "<NULL>" if no dev_name given. */
if (!dev_name)
dev_name = "<NULL>";
- requested_dev_name = tomoyo_encode2(dev_name);
+ requested_dev_name = tomoyo_encode(dev_name);
if (!requested_dev_name) {
error = -ENOMEM;
goto out;