evm: posix acls modify i_mode

[pandora-kernel.git] / security / integrity / evm / evm_posix_acl.c

diff --git a/security/integrity/evm/evm_posix_acl.c b/security/integrity/evm/evm_posix_acl.c
new file mode 100644 (file)
index 0000000..b1753e9
--- /dev/null
+++ b/security/integrity/evm/evm_posix_acl.c
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2011 IBM Corporation
+ *
+ * Author:
+ * Mimi Zohar <zohar@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ */
+
+#include <linux/module.h>
+#include <linux/xattr.h>
+
+int posix_xattr_acl(char *xattr)
+{
+       int xattr_len = strlen(xattr);
+
+       if ((strlen(XATTR_NAME_POSIX_ACL_ACCESS) == xattr_len)
+            && (strncmp(XATTR_NAME_POSIX_ACL_ACCESS, xattr, xattr_len) == 0))
+               return 1;
+       if ((strlen(XATTR_NAME_POSIX_ACL_DEFAULT) == xattr_len)
+            && (strncmp(XATTR_NAME_POSIX_ACL_DEFAULT, xattr, xattr_len) == 0))
+               return 1;
+       return 0;
+}