bug#54398: Adding network-manager-openvpn requires a full reboot

bug#54398: Adding network-manager-openvpn requires a full reboot

[Maxim Cournoyer]

Hello Guix,

I've been bitten by this before, and again this morning, so I'm
reporting this behavior as a bug.

The struggle looks a bit like this:

1. Add the 'network-manager-openvpn' plugin to your
'network-manager-configuration', like so:

--8<---------------cut here---------------start------------->8---
(modify-services %desktop-services
 [...]
 (network-manager-service-type config =>
 		               (network-manager-configuration
			        (inherit config)
			        (vpn-plugins (list network-manager-openvpn))))
--8<---------------cut here---------------end--------------->8---

2. 'guix system reconfigure' your system with the change

3. Try configuring/importing an OpenVPN connection; it fails because the
plugin hasn't yet been made available.

4. Restart the networking service and relogin.

5. Now it seems to be functional, but the connection fails to be
established, with a timeout error.

6. Reboot the machine.

7. Try again: it now works.

Thanks,

Maxim

bug#54398: Adding network-manager-openvpn requires a full reboot

[Maxime Devos]

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Maxim Cournoyer schreef op di 15-03-2022 om 11:24 [-0400]:
> 1. Add the 'network-manager-openvpn' plugin to your
> 'network-manager-configuration', like so:
> 
> --8<---------------cut here---------------start------------->8---
> (modify-services %desktop-services
>  [...]
>  (network-manager-service-type config =>
>  		               (network-manager-configuration
> 			        (inherit config)
> 			        (vpn-plugins (list network-manager-openvpn))))
> --8<---------------cut here---------------end--------------->8---

Looking at 'network-manager-environment'

(define network-manager-environment
  (match-lambda
    (($ <network-manager-configuration> network-manager dns vpn-
plugins)
     ;; Define this variable in the global environment such that
     ;; "nmcli connection import type openvpn file foo.ovpn" works.
     `(("NM_VPN_PLUGIN_DIR"
        . ,(file-append (vpn-plugin-directory vpn-plugins)
                        "/lib/NetworkManager/VPN")))))),

I expect a potential issue to be that NM_VPN_PLUGIN_DIR is a
/gnu/store/... file name and hence the plugins in there are
not adjusted by a reconfiguration.  Maybe it could instead
refer to somewhere in /run/current-system/...?

Greetings,
Maxime.

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