#!/bin/sh

# Run
# chown root:root per_device_routing_tables.sh
# chmod 700 per_device_routing_tables.sh
#
# or NM will refore to run the script.
# Then move the script to /etc/NetworkManager/dispatcher.d

export PATH="/bin:/sbin:/usr/bin:/usr/sbin"

case $2 in
	up|dhcp4-change)
	;;

	*)
	exit 0
	;;
esac

# Add one line per device in /etc/iproute2/rt_tables, like this:
# 100 eth0
# 101 wlan0
# 102 ppp0
# 103 usb0

LOG="/var/log/$(basename $0).log"
#echo -e "\n========== $(date)\n'$1' '$2'\n$(env)" >> $LOG

if [ "$(awk '/^[^#]/ { if ( $2 == "'$DEVICE_IP_IFACE'" ) { print $2 } }' /etc/iproute2/rt_tables)" != "" ]
then
	IP_PREFIX=$(echo $IP4_ADDRESS_0 | cut -d ' ' -f 1 | cut -d / -f 2)
	#echo "ip route add $DHCP4_NETWORK_NUMBER/$IP_PREFIX dev $DEVICE_IP_IFACE src $DHCP4_IP_ADDRESS table $DEVICE_IP_IFACE" >> $LOG
	#echo "ip route add $DHCP4_NETWORK_NUMBER/$IP_PREFIX dev $DEVICE_IP_IFACE src $DHCP4_IP_ADDRESS" >> $LOG
	#echo "ip route add default via $(echo $DHCP4_ROUTERS | cut -d ' ' -f 1) table $DEVICE_IP_IFACE" >> $LOG
	#echo "ip rule add from $DHCP4_IP_ADDRESS table $DEVICE_IP_IFACE" >> $LOG

	ip route add $DHCP4_NETWORK_NUMBER/$IP_PREFIX dev $DEVICE_IP_IFACE src $DHCP4_IP_ADDRESS table $DEVICE_IP_IFACE
	ip route add $DHCP4_NETWORK_NUMBER/$IP_PREFIX dev $DEVICE_IP_IFACE src $DHCP4_IP_ADDRESS
	ip route add default via $(echo $DHCP4_ROUTERS | cut -d ' ' -f 1) table $DEVICE_IP_IFACE
	ip rule add from $DHCP4_IP_ADDRESS table $DEVICE_IP_IFACE
fi

/bin/true