On Fedora 33 the daemon cannot connect to DBus

[j-silver]

I managed to build the client on Fedora 33 without particular problems.

When I try to run it I have this error:

sudo ./build/bin/mozillavpn linuxdaemon
[sudo] password for username: 
[13.01.2021 14:41:53.777] (main - LogHandler) Log file: /root/.local/share/mozillavpn.txt
[13.01.2021 14:41:53.777] (main - Command) MozillaVPN 2.0.2
[13.01.2021 14:41:53.778] (main - CryptoSettings) Read the settings file
[13.01.2021 14:41:53.778] (main - SettingsHolder) Creating SettingsHolder instance
[13.01.2021 14:41:53.778] (main - Localizer) Loading language: en-GB
[13.01.2021 14:41:53.778] (main - SettingsHolder) Setting languageCode
[13.01.2021 14:41:53.780] (linux - main) Connecting to DBus...
[13.01.2021 14:41:53.781] (linux - main) Connection failed - name: org.freedesktop.DBus.Error.AccessDenied message: Request to own name refused by policy
[13.01.2021 14:41:53.788] (main - CryptoSettings) Writing the settings file
[13.01.2021 14:41:53.788] (main - CryptoSettings) Write plaintext JSON file

This is clearly due to some more restrictive policy on Fedora. Does anybody know how to fix it?

Note: the log file /root/.local/share/mozillavpn.txt contains exactly the same output as above.

┆Issue is synchronized with this Jira Task

[bakulf]

I don't know if it helps, but, do you mind to test this: https://stackoverflow.com/questions/11170118/dbus-systembus-policies ?

[j-silver]

I've noticed that the build directory has this structure:

build/
├── bin
│   └── mozillavpn
└── share
├── dbus-1
│ ├── system.d
│ │   └── org.mozilla.vpn.conf
│ └── system-services
| └── org.mozilla.vpn.dbus.service
└── polkit-1
└── actions
└── org.mozilla.vpn.policy

So I've copied those files under /usr/share

It turned out to be a naive move... My installation has SELinux enabled which broke dbus and made the system unbootable.

I managed to recover it, but clearly it's a bit more complicated than this. At least when SELinux is on.

Edit: one possible solution could be disabling SELinux and copying those files again into /usr/share.
Another one is re-labelling them in such a way that SELinux recognises them as valid and doesn't lock the system.

If anybody has more experience/knowledge of SELinux and wants to suggest how to proceed, I'm happy to discuss it.

[ltratcliff]

Built on Fedora 33 as well. Attempting to connect just cycles through connecting -> disconnecting -> VPN is off. (tried with both selinux enabled/disabled)

~/.local/share/mozillavpn.txt:

[10.03.2021 19:06:53.873] (linux - LinuxNetworkWatcher) Properties changed for interface org.freedesktop.NetworkManager.Device.Wireless
[10.03.2021 19:06:53.874] (linux - LinuxNetworkWatcher) Not active. Ignoring the changes
[10.03.2021 19:06:54.590] (main - MozillaVPN) VPN tunnel activation
[10.03.2021 19:06:54.591] (main|controller - TaskControllerAction) TaskControllerAction created for activation
[10.03.2021 19:06:54.591] (main - MozillaVPN) Scheduling task:  TaskControllerAction
[10.03.2021 19:06:54.591] (main - MozillaVPN) Tasks:  1
[10.03.2021 19:06:54.591] (main|controller - TaskControllerAction) TaskControllerAction run
[10.03.2021 19:06:54.591] (controller - Controller) Activation 1
[10.03.2021 19:06:54.591] (controller - Controller) Setting state: 2
[10.03.2021 19:06:54.597] (main - MozillaVPN) Controller state changed
[10.03.2021 19:06:54.597] (main - StatusIcon) Show notification
[10.03.2021 19:06:54.598] (networking - ConnectionHealth) Connection state changed
[10.03.2021 19:06:54.599] (networking - ConnectionHealth) ConnectionHealth deactivated
[10.03.2021 19:06:54.599] (networking - PingHelper) PingHelper deactivated
[10.03.2021 19:06:54.599] (captiveportal - CaptivePortalDetection) Controller/Stability state changed
[10.03.2021 19:06:54.599] (networking - ConnectionDataHolder) state changed
[10.03.2021 19:06:54.599] (networking - ConnectionDataHolder) Resetting the data
[10.03.2021 19:06:54.599] (networking - ConnectionDataHolder) Updating IP address
[10.03.2021 19:06:54.599] (networking - ConnectionDataHolder) Skip Updating IP address, not connected
[10.03.2021 19:06:54.599] (main - SystemTrayHandler) Update context menu
[10.03.2021 19:06:54.600] (main - NotificationHandler) Show notification
[10.03.2021 19:06:54.600] (main|controller - TaskControllerAction) stateChanged received by to be ignored
[10.03.2021 19:06:54.600] (networking - ConnectionCheck) Stopping a connection check
[10.03.2021 19:06:54.600] (networking - PingHelper) PingHelper deactivated
[10.03.2021 19:06:54.600] (controller - Controller) Activation internal
[10.03.2021 19:06:54.600] (controller - Controller) Computing the allowed ip addresses
[10.03.2021 19:06:54.600] (controller - Controller) Catch all IPv4
[10.03.2021 19:06:54.600] (controller - Controller) Catch all IPv6
[10.03.2021 19:06:54.600] (linux|controller - LinuxController) LinuxController activated
[10.03.2021 19:06:54.601] (linux - DBusClient) Activate via DBus
[10.03.2021 19:06:54.791] (linux|controller - LinuxController) DBus service says: error.
[10.03.2021 19:06:54.792] (main - MozillaVPN) Handling error 4
[10.03.2021 19:06:54.792] (main - MozillaVPN) Alert: 5 State: 3
[10.03.2021 19:06:54.793] (controller - TimerController) TimerController - Operation completed: 1 0
[10.03.2021 19:06:55.551] (controller - TimerController) TimerController - Timeout: 4
[10.03.2021 19:06:55.551] (controller - Controller) Disconnected from state: 2
[10.03.2021 19:06:55.551] (networking - ConnectionCheck) Stopping a connection check
[10.03.2021 19:06:55.551] (networking - PingHelper) PingHelper deactivated
[10.03.2021 19:06:55.551] (controller - Controller) Setting state: 5
[10.03.2021 19:06:55.554] (main - MozillaVPN) Controller state changed
[10.03.2021 19:06:55.555] (main - StatusIcon) Show notification
[10.03.2021 19:06:55.555] (networking - ConnectionHealth) Connection state changed
[10.03.2021 19:06:55.555] (networking - ConnectionHealth) ConnectionHealth deactivated
[10.03.2021 19:06:55.555] (networking - PingHelper) PingHelper deactivated
[10.03.2021 19:06:55.555] (captiveportal - CaptivePortalDetection) Controller/Stability state changed
[10.03.2021 19:06:55.556] (networking - ConnectionDataHolder) state changed
[10.03.2021 19:06:55.556] (networking - ConnectionDataHolder) Resetting the data
[10.03.2021 19:06:55.556] (networking - ConnectionDataHolder) Updating IP address
[10.03.2021 19:06:55.556] (networking - ConnectionDataHolder) Skip Updating IP address, not connected
[10.03.2021 19:06:55.556] (main - SystemTrayHandler) Update context menu
[10.03.2021 19:06:55.557] (main - NotificationHandler) Show notification
[10.03.2021 19:06:56.981] (controller - Controller) Disconnected from state: 5
[10.03.2021 19:06:56.982] (networking - ConnectionCheck) Stopping a connection check
[10.03.2021 19:06:56.982] (networking - PingHelper) PingHelper deactivated
[10.03.2021 19:06:56.982] (controller - Controller) Setting state: 1
[10.03.2021 19:06:56.984] (main - MozillaVPN) Controller state changed
[10.03.2021 19:06:56.984] (main - StatusIcon) Show notification
[10.03.2021 19:06:56.985] (networking - ConnectionHealth) Connection state changed
[10.03.2021 19:06:56.985] (networking - ConnectionHealth) ConnectionHealth deactivated
[10.03.2021 19:06:56.985] (networking - PingHelper) PingHelper deactivated
[10.03.2021 19:06:56.985] (captiveportal - CaptivePortalDetection) Controller/Stability state changed
[10.03.2021 19:06:56.985] (networking - ConnectionDataHolder) state changed
[10.03.2021 19:06:56.985] (networking - ConnectionDataHolder) Resetting the data
[10.03.2021 19:06:56.985] (networking - ConnectionDataHolder) Updating IP address
[10.03.2021 19:06:56.986] (networking - ConnectionDataHolder) Skip Updating IP address, not connected
[10.03.2021 19:06:56.986] (main - SystemTrayHandler) Update context menu
[10.03.2021 19:06:56.986] (main - NotificationHandler) Show notification
[10.03.2021 19:06:57.451] (main - MozillaVPN) Task completed
[10.03.2021 19:06:57.451] (main - MozillaVPN) Tasks:  0
[10.03.2021 19:06:59.872] (linux - LinuxNetworkWatcher) Properties changed for interface org.freedesktop.NetworkManager.Device.Wireless
[10.03.2021 19:06:59.873] (linux - LinuxNetworkWatcher) Not active. Ignoring the changes