Syntax changes RUTX08 07.12.3 -> 07.13.4 OpenVPN

[itsam]

Hi Teltonika team,

we have many RUTX08 around the world and manage the I/O’s with a script.

In 07.13.4 is a syntax change (again), with 07.12.3 we can detect the OpenVPN by the name:

ifconfig | grep -q ‘VPNName’
now it’s replaced by the “interface”:
ifconfig | grep -q ‘tun_’

Also enable and disable OpenVPN was before possible with:

uci set openvpn.VPNNAME.enable=‘0’
now the syntax of the setting is:
uci set openvpn.inst1.enable=‘0’

Is there a better way to script this upgrade resistant?

Thanks.

[pwsh]

Yes, use API it shouldn’t change between versions. https://developers.teltonika-networks.com/

[Marija]

Hello @itsam,

Could you please confirm whether your issue has been resolved or if you still require any assistance?

Best regards,

[itsam]

Hi @Marija ,

still more questions than answers at the moment

Unfortunately the examples [1] don’t show how to script it local on the device as /bin/sh script.

I need the following:

read input
if yes connect openvpn and enable output (high)
else disconnect openvpn and disable output (low)

I can use the api local in the script without authentication, right?

[1] https://developers.teltonika-networks.com/tutorials/

[pwsh]

It can be called locally without authentication by using /sbin/api

[itsam]

Hello @Marija ,

do you have an example for me?

• read state of OpenVPN connection
• enable / disable OpenVPN connection
• read digital input
• enable / disable digital output

I try to replace our actual bash script with the new api…

[Marija]

Hello @itsam,

Here are some API examples you can use in CLI and in your custom script:

• To read the OpenVPN connection state, use api get /openvpn/status
  More info: OpenVPN GET status
• To disable the OpenVPN connection, use: api put /openvpn/config '{"data": [{"id": "inst1", "enable": "0"}]}'
  To enable it, use: api put /openvpn/config '{"data": [{"id": "inst1", "enable": "1"}]}'
  More info: OpenVPN PUT config
• To read Input/Output status, use: api get /io/status
  More info: Input/Output GET status
• To enable a digital output, use: api post /io/dout1/actions/change_state '{"data": {"value": "1"}}'
  To disable it, use: api post /io/dout1/actions/change_state '{"data": {"value": "0"}}'
  More info: Input/Output POST change_state

Best regards,

[itsam]

Thank you @Marija for the examples!

How can I use the json output in my bash script?
Is there any tool to get this values in variables?

For example, how to test the output of api get /io/status [...?...]?

if [ "$iostatus" == "0" ] ; then
api post /io/dout1/actions/change_state '{"data": {"value": "1"}}'
else
echo "already enabled"
fi

(We don’t like to install additional add-ons, must be working with the basic RUTX08 firmware / commands).

[Marija]

Hello @itsam,

This is a simple example of the script which checks if OpenVPN disabled, and if it does, then it will enable it using API:

status=$(api get /openvpn/status | grep -o '"status":"[0-9]*"' | grep -o '[0-9]*')
if [ "$status" = "4" ]; then
  api put /openvpn/config '{"data": [{"id": "inst1", "enable": "1"}]}'

• Status 4 means the VPN instance is disconnected.
• Status 2 means the VPN instance is connected.

Best regards,