#!/bin/sh

# old versions resided in /System/Library, remove.
rm -r /System/Library/Extensions/tun.kext

# unload an old extension (might fail)
kextunload /Library/Extensions/tun.kext

# Fix ownership. The installer gets this wrong *sigh*
chown -R root:wheel /Library/Extensions/tun.kext
chmod -R u=rwX,g=rX,o=rX /Library/Extensions/tun.kext

# load the new version
kextload /Library/Extensions/tun.kext