Ubuntu 23.10 - Failed to execute program net.openvpn.v3.sessions: Permission denied

[Marietto2008]

Hello.

I cannot figure out how it's possible that I'm getting "permission denied" as root (and as a normal user) when I launch openvpn3 on Ubuntu 23.10 :

$ openvpn3 session-start --dco true --config vpn.aus.imthebestvpn.net.ovpn  

** ERROR ** 

Failed preparing proxy:
Error calling StartServiceByName for net.openvpn.v3.sessions:              
Failed to execute program net.openvpn.v3.sessions: Permission denied 

I'm using this version of openvpn3 :

OpenVPN3/Linux v21 (openvpn3) 
OpenVPN core v3.8.2 linux x86_64 64-bit 
Copyright (C) 2012-2022 OpenVPN Inc. All rights reserved. 

Something might be missing execute permission, but I cannot figure out from this error message what that might be. In any event, I followed the installation instructions exactly as written so I'm at a loss. Any suggestions on where to begin troubleshooting this ? Since this error is similar to this one :

#99

I will post the same informations that you asked on that post :

# cat /usr/share/dbus-1/system-services/net.openvpn.v3.configuration.service

[D-BUS Service]
Name=net.openvpn.v3.configuration
User=openvpn
Exec=/usr/libexec/openvpn3-linux/openvpn3-service-configmgr --state-dir "/var/lib/openvpn3/configs"

ls -ltr /usr/libexec/openvpn3-linux/openvpn3-service-configmgr
-rwxr-xr-x 1 root root 342600 ott  6 12:27 /usr/libexec/openvpn3-linux/openvpn3-service-configmgr

$ ls -ltr /usr/libexec/openvpn3-linux/

total 3404
-rwxr-xr-x 1 root root   12749 ott  6 12:27 openvpn3-systemd
-rwxr-xr-x 1 root root  326544 ott  6 12:27 openvpn3-service-sessionmgr
-rwxr-xr-x 1 root root  695288 ott  6 12:27 openvpn3-service-netcfg
-rwxr-xr-x 1 root root  326184 ott  6 12:27 openvpn3-service-logger
-rwxr-xr-x 1 root root  342600 ott  6 12:27 openvpn3-service-configmgr
-rwxr-xr-x 1 root root 1621528 ott  6 12:27 openvpn3-service-client
-rwxr-xr-x 1 root root  150024 ott  6 12:27 openvpn3-service-backendstart

$ /usr/libexec/openvpn3-linux/openvpn3-service-configmgr

OpenVPN3/Linux v21 (openvpn3-service-configmgr)
OpenVPN core v3.8.2 linux x86_64 64-bit
Copyright (C) 2012-2022 OpenVPN Inc. All rights reserved.
** ERROR ** Could not connect to net.openvpn.v3.log service
            Failed preparing proxy: Error calling StartServiceByName for net.openvpn.v3.log: Failed to execute program net.openvpn.v3.log: Permission denied

sudo /usr/libexec/openvpn3-linux/openvpn3-service-configmgr

[sudo] password for ziomario: 
[INFO] Dropping root group privileges to openvpn
[INFO] Dropping root user privileges to openvpn
OpenVPN3/Linux v21 (openvpn3-service-configmgr)
OpenVPN core v3.8.2 linux x86_64 64-bit
Copyright (C) 2012-2022 OpenVPN Inc. All rights reserved.
** ERROR ** Could not connect to net.openvpn.v3.log service
            Failed preparing proxy: Error calling StartServiceByName for net.openvpn.v3.log: Failed to execute program net.openvpn.v3.log: Permission denied

$ /usr/libexec/openvpn3-linux/openvpn3-service-logger --service --idle-exit 0 --state-dir /var/lib/openvpn3 --log-level 6

 Logger INFO: OpenVPN3/Linux v21 (openvpn3-service-logger)
OpenVPN core v3.8.2 linux x86_64 64-bit
Copyright (C) 2012-2022 OpenVPN Inc. All rights reserved.
 Logger INFO: Log method: StreamWriter
terminate called after throwing an instance of 'DBusException'
  what():  openvpn3-service-logger could not register 'net.openvpn.v3.log'
Aborted

$ sudo /usr/libexec/openvpn3-linux/openvpn3-service-logger --service --idle-exit 0 --state-dir /var/lib/openvpn3 --log-level 6
[INFO] Dropping root group privileges to openvpn
[INFO] Dropping root user privileges to openvpn
OpenVPN3/Linux v21 (openvpn3-service-logger)
OpenVPN core v3.8.2 linux x86_64 64-bit
Copyright (C) 2012-2022 OpenVPN Inc. All rights reserved.
Log method: journald

[dsommers]

First a heads-up; OpenVPN 3 Linux on Ubuntu 23.10 is currently not stable - and in many cases - not functional at all. This is related to the issues in #171. I am fully focused on resolving that first. It might be that there are further changes in 23.10 which makes the current glib2 implementation fail as well.

I will follow up on this ticket once the work on #171 is ready for more widely testing.

[Marietto2008]

Isn't there supposed to be a service file like this ?

openvpn3-linux/src/service-autostart/net.openvpn.v3.sessions.service.in

Line 9 in edf113b

[D-BUS Service]

I don't know why it is not there. Anyway,I've created this service file on /usr/lib/systemd/user :

net.openvpn.v3.sessions.service :

[D-BUS Service] 
Name=net.openvpn.v3.sessions
User=@mario2008@gmail.com@
Exec=@LIBEXEC_PATH@/openvpn3-service-sessionmgr

now,what should I do ?

[dsommers]

There are two types of .service files. It's the systemd unit files which you refer to. And it is the D-Bus auto-start service files. While systemd can interact with the D-Bus daemon on in regards service management, there are no requirements for this to be present.

What you need to do is to just wait; I'm working full time on a complete overhaul of the D-Bus implementation to make it run well with glib2-2.76 and newer. Ubuntu 23.10 ships with glib2-2.78. This is not expected to work due to glib2 is now behaving slightly differently under the hood, which makes the glib2 integration layer in OpenVPN 3 Linux misbehave very badly.

[app-z]

Hi
The same issue on 23.10
Any news? At least solution

[Marietto2008]

I changed os (from linux to FreeBSD) and the problem has gone ;) Il lun 1 gen 2024, 22:04 appz ***@***.***> ha scritto:

…

Hi The same issue on 23.10 Any news? At least solution — Reply to this email directly, view it on GitHub <#214 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAFYNCZIAAXN3M5GHZ32B3DYMMQEHAVCNFSM6AAAAAA7LAKOXWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQNZTGQ3TSNBWGY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[diman82]

@Marietto2008 Can you please share how you managed to install the client at all on 23.10?
Repositories are not yet released, so haven't managed to install it (the official way)..

[dsommers]

@diman82 Can you please try the development snapshot? Details here: #171 (comment)

If that works, we can probably close this ticket.

[diman82]

@dsommers Can confirm all works like a charm, thanks!

[dsommers]

Thanks! Closing this one. Please re-open if there are other issues related to net.openvpn.v3.sessions.

[Marietto2008]

Here on github I see the bad habit to close the tickets very soon,before to have reached a good number of positive reviews. I think it's not good. Anyway,it does not still work for me with Ubuntu 23.10 :

root@Z390-AORUS-PRO-DEST:/home/ziomario/Scrivania# sudo add-apt-repository ppa:djpig/openvpn

root@Z390-AORUS-PRO-DEST:/home/ziomario/Scrivania# sudo apt update

root@Z390-AORUS-PRO-DEST:/home/ziomario/Scrivania# sudo apt upgrade

root@Z390-AORUS-PRO-DEST:/home/ziomario/Scrivania# openvpn3 session-start --dco true --config vpn.aus.iamthebestvpn.net.ovpn  

** ERROR ** Failed preparing proxy: Error calling StartServiceByName for net.openvpn.v3.sessions: Failed to execute program net.openvpn.v3.sessions: Permission denied

[dsommers]

@Marietto2008 How did you install OpenVPN 3 Linux?

If you have modified the net.openvpn.v3.sessions.service file, ensure you completely uninstall the openvpn3 packages completely first. Ensure you don't have any traces of it in /usr/share/dbus-1 (find /usr/share/dbus-1 -type f -name "net.openvpn.*") ... and re-install it using sudo apt install openvpn3.

If you have modified any of the .service files like you described in your comment, it will definitely break.

Once re-installed, please provide the contents of /var/lib/openvpn3/openvpn3-init-config.log.

Also, since you had a reply where you said you had switched to FreeBSD, I took your words for it and expected you were no longer interested in this project.