From 6629e39e6fd0b4fefcf08e7e2241b1d7f755266c Mon Sep 17 00:00:00 2001
From: Thomas Ries <tries@gmx.net>
Date: Sat, 2 Apr 2005 10:13:27 +0000
Subject: [PATCH] *** empty log message ***

---
 src/security.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/security.c b/src/security.c
index de9071f..20de850 100644
--- a/src/security.c
+++ b/src/security.c
@@ -49,6 +49,8 @@ int security_check_raw(char *sip_buffer, int size) {
    /*
     * empiric: size must be >= 16 bytes
     *   2 byte <CR><LF> packets have been seen in the wild
+    *   also 4 bytes with 0x00 (seem to be used to keep potential UDP
+    *   masquerading tunnels open)
     */
    if (size<SEC_MINLEN) return STS_FAILURE;