* mapcalc - MAP parameter calculation
*
* Author: Steven Barth <cyrus@openwrt.org>
- * Copyright (c) 2014 cisco Systems, Inc.
+ * Copyright (c) 2014-2015 cisco Systems, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
if (ealen < 0 && pdlen >= 0)
ealen = pdlen - prefix6len;
- if (psidlen < 0)
+ if (psidlen <= 0) {
psidlen = ealen - (32 - prefix4len);
+ psid = -1;
+ }
if (psid < 0 && psidlen <= 16 && psidlen >= 0 && pdlen >= 0 && ealen >= psidlen) {
bmemcpys64(&psid16, &pd, prefix6len + ealen - psidlen, psidlen);