#!/bin/sh
#
# Add virtual network interfaces (veth's) in a container to a bridge on CT0

CONFIGFILE=/etc/vz/conf/$VEID.conf
. $CONFIGFILE

NETIFLIST=$(printf %s "$NETIF" |tr ';' '\n')

if [ -z "$NETIFLIST" ]; then
   echo >&2 "According to $CONFIGFILE, CT$VEID has no veth interface configured."
   exit 1
fi

for iface in $NETIFLIST; do
    bridge=
    host_ifname=

    for str in $(printf %s "$iface" |tr ',' '\n'); do
	case "$str" in
	    bridge=*|host_ifname=*)
		eval "${str%%=*}=\${str#*=}" ;;
	esac
    done

    [ "$host_ifname" = "$3" ] ||
	continue

    [ -n "$bridge" ] ||
	bridge=vmbr0

    echo "Adding interface $host_ifname to bridge $bridge on CT0 for CT$VEID"
    ip link set dev "$host_ifname" up
    echo 1 >"/proc/sys/net/ipv4/conf/$host_ifname/proxy_arp"
    echo 1 >"/proc/sys/net/ipv4/conf/$host_ifname/forwarding"
    brctl addif "$bridge" "$host_ifname"

    break
done

exit 0