#!/bin/sh

#### Script to enable IPv6 PDP context and set up IPv6 GPRS Interface ####
#                                                                        #
#    Authors: Fuad Abinader (ext-fuad.junior@nokia.com)                  #
#             Vinicius Pinto (ext-vinicius.pinto@nokia.com)              #
#    Company: INdT - Instituto NOKIA de Tecnologia                       #
#    Date: 04/27/2010                                                    #
#    Realease: 1.2                                                       #
#                                                                        #
##########################################################################

### IPv4 APN value to hook up when activating IPv6 APN ###
MY_IPv4_APN="internet.tusmobil.si"

### IPv6 APN value ###
MY_IPv6_APN="ipv6.tusmobil.si"

### IPv6 APN username ###
MY_IPv6_USERNAME="indt"

### IPv6 APN password ###
MY_IPv6_PASSWORD="indt"

### Add prioritary IPv6-specific DNS server? ###
ADD_IPv6_DNS="no"

### Prioritary IPv6-specific DNS server ###
IPv6_DNS="2a02:840::2"

### Get gprs interface name (i.e. gprs0 or gprs1) from active PDP context ###
INT_NAME=$(dbus-send --system --print-reply --dest=com.nokia.csd.GPRS  /com/nokia/csd/gprs  com.nokia.csd.GPRS.GetStatus | grep string | cut -d '"' -f 2 | awk 'NR==3')

### Get APN name from active PDP context ###
APN_NAME=$(dbus-send --system --print-reply --dest=com.nokia.csd.GPRS  /com/nokia/csd/gprs  com.nokia.csd.GPRS.GetStatus | grep string | cut -d '"' -f 2 | awk 'NR==1')

### If interface name is gprs0 and apn equal to your IPv4 APN value then come up IPv6 PDP context and interface ###
if [ $INT_NAME == "gprs0" ] && [ $APN_NAME == $MY_IPv4_APN ]; then
        /usr/bin/dbus-send --system --print-reply --dest=com.nokia.csd.GPRS  /com/nokia/csd/gprs  com.nokia.csd.GPRS.Attach
        /usr/bin/dbus-send --system --print-reply --dest=com.nokia.csd.GPRS  /com/nokia/csd/gprs  com.nokia.csd.GPRS.QuickConnect string:$MY_IPv6_APN string:IPv6 string:$MY_IPv6_U
        /usr/bin/dbus-send --system --print-reply --dest=com.nokia.csd.GPRS  /com/nokia/csd/gprs  com.nokia.csd.GPRS.GetStatus
        ip6_string=$(dbus-send --system --print-reply --dest=com.nokia.csd.GPRS  /com/nokia/csd/gprs  com.nokia.csd.GPRS.GetStatus | grep string | cut -d '"' -f 2 | tail -1)
        /sbin/ifconfig gprs1 $ip6_string up
else
        exit 0
fi

### Adding IPv6 DNS to the /var/run/resolv.conf.gprs file ###
if [ $ADD_IPv6_DNS == "yes" ]; then
	/bin/mv /var/run/resolv.conf.gprs /var/run/resolv.conf.gprs.old
	/bin/touch /var/run/resolv.conf.gprs                           
	echo "nameserver "$IPv6_DNS >> /var/run/resolv.conf.gprs
	cat /var/run/resolv.conf.gprs.old >> /var/run/resolv.conf.gprs                    
fi