move sources to src/

1 files changed, 38 insertions, 0 deletions

diff --git a/src/netns-script b/src/netns-script
new file mode 100755
index 0000000..ba2d226
--- /dev/null
+++ b/src/netns-script
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+# adapted from
+# https://unix.stackexchange.com/questions/149293/feed-all-traffic-through-openvpn-for-a-specific-network-namespace-only
+
+# vpn_wrapper.sh creates another script of name helper_script<timestamp>.sh,
+# which gets called by openvpn process, exports NAMESPACE_NAME and WRAPPER_PID
+# variables and then runs this script
+
+case $script_type in
+    up)
+	env
+	        ip netns add $NAMESPACE_NAME
+                ip netns exec $NAMESPACE_NAME ip link set dev lo up
+                ip link set dev "$1" up netns $NAMESPACE_NAME mtu "$2"
+                ip netns exec $NAMESPACE_NAME ip addr add dev "$1" \
+                        "$4/${ifconfig_netmask:-30}" \
+                        ${ifconfig_broadcast:+broadcast "$ifconfig_broadcast"}
+                if [ -n "$ifconfig_ipv6_local" ]; then
+                        ip netns exec $NAMESPACE_NAME ip addr add dev "$1" \
+                                "$ifconfig_ipv6_local"/112
+                fi
+                ;;
+        route-up)
+                ip netns exec $NAMESPACE_NAME ip route add default via "$ifconfig_remote"
+		
+                if [ -n "$ifconfig_ipv6_remote" ]; then
+                        ip netns exec $NAMESPACE_NAME ip route add default via \
+                                "$ifconfig_ipv6_remote"
+                fi
+
+		# notify our sh process, that openvpn finished initializing
+		kill -usr1 $WRAPPER_PID
+                ;;
+        down)
+                ip netns delete $NAMESPACE_NAME
+                ;;
+esac