#!/bin/sh +x

IP=/sbin/ip

SLICE=$1
SLICEID=`id -u $SLICE`
NODEID=$2
REMOTE=$3
KEY=$4
RATE=$5
VIRTIP=$6
VIRTNET=$7

SUBNET=`expr match "$VIRTNET" '.*\(/[0-9]*\)'`
LINK=${KEY}x${NODEID}

modprobe ip_gre

### Setup EGRE tunnel
EGRE=d$LINK
$IP tunnel add $EGRE  mode gre type eth remote $REMOTE key $KEY ttl 64
$IP link set $EGRE up

### Setup macvlan
MACV=a$LINK
ip link add link $EGRE $MACV type macvlan

### Put a process in the vserver so we can move the interface there
su $SLICE -c "sleep 30 &"
PID=`su $SLICE -c "pgrep -n sleep"`
$IP link set $MACV netns $PID
naddress --add --nid $SLICEID --ip ${VIRTIP}${SUBNET}
su $SLICE -c "sudo /sbin/ifconfig $MACV ${VIRTIP}${SUBNET} mtu 1458 up"

### Set rate
tc qdisc add dev $EGRE root handle 1: htb default 10
tc class add dev $EGRE parent 1: classid 1:10 htb rate $RATE ceil $RATE