netns-script

   1 #!/bin/sh
   2
   3 # adapted from
   4 # https://unix.stackexchange.com/questions/149293/feed-all-traffic-through-openvpn-for-a-specific-network-namespace-only
   5
   6 case $script_type in
   7         up)
   8                 ip netns add 0tdns
   9                 ip netns exec 0tdns ip link set dev lo up
  10                 ip link set dev "$1" up netns 0tdns mtu "$2"
  11                 ip netns exec 0tdns ip addr add dev "$1" \
  12                         "$4/${ifconfig_netmask:-30}" \
  13                         ${ifconfig_broadcast:+broadcast "$ifconfig_broadcast"}
  14                 if [ -n "$ifconfig_ipv6_local" ]; then
  15                         ip netns exec 0tdns ip addr add dev "$1" \
  16                                 "$ifconfig_ipv6_local"/112
  17                 fi
  18                 ;;
  19         route-up)
  20                 ip netns exec 0tdns ip route add default via "$ifconfig_remote"
  21
  22                 if [ -n "$ifconfig_ipv6_remote" ]; then
  23                         ip netns exec 0tdns ip route add default via \
  24                                 "$ifconfig_ipv6_remote"
  25                 fi
  26
  27                 # notify our sh process, that openvpn finished initializing
  28                 kill -usr1 `cat /var/lib/0tdns/shell_pid`
  29
  30                 # we no longer need this connection
  31                 #kill $OPENVPN_PID
  32
  33                 ;;
  34         down)
  35                 ip netns delete 0tdns
  36                 ;;
  37 esac