selftest/ns/add_bridge_iface.sh

   1 #!/bin/sh
   2 #
   3 # Configures the interfaces needed for communication between namespaces.
   4 # This handles the bridge-end of the veth pair.
   5 interface=$1
   6
   7 # the main bridge interface is called 'selftest0' (although in future we may
   8 # want to segregate the different domains by using different bridges)
   9 bridge=$2
  10
  11 # we need to wait for the child namespace to start up and add the new
  12 # interface back to our new namespace
  13 while ! ip link show $interface > /dev/null 2>&1
  14 do
  15     sleep 0.1
  16     echo "Waiting for $interface to be created..."
  17 done
  18
  19 # bring the bridge-end of the link up and add it to the bridge
  20 ip link set dev $interface up
  21 ip link set $interface master $bridge
  22