debian/ifupdown.sh

   1 #!/bin/sh
   2
   3 # create a VETH device and plug it into bridge ${IF_VETH_BRIDGETO}
   4
   5 if [ -z "${IF_VETH_BRIDGETO}" ]; then
   6     exit 0
   7 fi
   8
   9 if [ ! -x /sbin/brctl ]
  10 then
  11     exit 0
  12 fi
  13
  14 if [ "${MODE}" = "start" ]; then
  15     test -d "/sys/class/net/${IF_VETH_BRIDGETO}" || ifup "${IF_VETH_BRIDGETO}" || exit 1
  16     ip link add name "${IFACE}" type veth peer name "${IFACE}peer" || exit 1
  17     ip link set "${IFACE}peer" up || exit 1
  18     brctl addif "${IF_VETH_BRIDGETO}" "${IFACE}peer" || exit 1
  19 elif [ "${MODE}" = "stop" ]; then
  20     brctl delif "${IF_VETH_BRIDGETO}" "${IFACE}peer"
  21     ip link set "${IFACE}peer" down || exit 1
  22     ip link del "${IFACE}" || exit 1
  23 fi
  24
  25 exit 0