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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2010-06-03 20:36:43 +0900
committerJames Morris <jmorris@namei.org>2010-08-02 15:33:41 +1000
commitc8c57e842720d8cc92ac8607f2d1c16d92314573 (patch)
treedc921366b931ba5817ad530433f3b1ee178bc56a /security/tomoyo/mount.c
parent9b244373da3eab671da6c5125482121528a9ebf3 (diff)
downloadlinux-c8c57e842720d8cc92ac8607f2d1c16d92314573.tar.bz2
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>
Diffstat (limited to 'security/tomoyo/mount.c')
-rw-r--r--security/tomoyo/mount.c55
1 files changed, 2 insertions, 53 deletions
diff --git a/security/tomoyo/mount.c b/security/tomoyo/mount.c
index aeac619f787d..7c1c7fdd3681 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 @@ static int tomoyo_mount_acl2(struct tomoyo_request_info *r, char *dev_name,
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 @@ static int tomoyo_mount_acl2(struct tomoyo_request_info *r, char *dev_name,
/* 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;