Missing Environment Variables

[SC]

Hello World! I'm diving into the glory of OpenVPN and I'm having a bit of trouble manually configuring the routing tables. I'm on Arch Linux.

I know OpenVPN automatically updates the routing tables when connecting but I want to write a script to update them myself. I've learned about OpenVPN's “--route-noexec” argument to prevent the automatic updates and the “--route-up” argument to pass relevant information via environment variables to a script of my choice.

This is where I run into trouble. I'd expect environment variables to be passed to the script, which happens, but it looks like I'm missing a few. Especially the one that lists my remote IP address, (untrusted/trusted_ip I believe) which makes it difficult to set iproute.

The environment variables my scripts receives are as follows:

Code: Select all

dev_type=tun
proto_1=udp
tun_mtu=1500
script_type=route-up
verb=1
local_port_1=1194
dev=tun0
remote_port_1=1194
PWD=/tmp
daemon=0
SHLVL=1
script_context=init
daemon_start_time=1409367799
daemon_pid=927
daemon_log_redirect=0
link_mtu=1500
_=/usr/bin/printenv

The command I use to launch my VPN is as follows:

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sudo openvpn --dev tun --route-noexec --script-security 2 --route-up /tmp/print.sh

And finally the script I pass it to reads as follows:

Code: Select all

#!/bin/bash
printenv

Does anybody know why I'm missing the variables? Any help would be appreciated! If you have any questions please ask.