#!/bin/sh

# path to the real vpnclient binary
VPNCLIENTBIN=/opt/cisco-vpnclient/bin/vpnclient

# path to the CPU-Hotplug facility for the second cpu. If you have a quadcore system, you
# should set this value to "1 2 3" or something like this.
SMP_CPUS="1"

# if a connection is to be established, switch off all other CPUs
if [ "$1" = "connect" ]; then
  for cpu in $SMP_CPUS; do
    echo 0 > /sys/devices/system/cpu/cpu$cpu/online
  done
fi

# start the VPN client with all given arguments
$VPNCLIENTBIN $*

# after the connection has been closed (either by hitting CTRL-C or by using a separate
# `vpnclient disconnect` invocation, turn the CPUs back on
for cpu in $SMP_CPUS; do
  echo 1 > /sys/devices/system/cpu/cpu$cpu/online
done