Polkit: Difference between revisions
imported>Aaron C Hall Inverse is true, see https://search.nixos.org/options?channel=22.05&show=security.polkit.enable&from=0&size=50&sort=relevance&type=packages&query=Polkit |
imported>Lumarius Added a note about lxqt-policykit |
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| (15 intermediate revisions by 9 users not shown) | |||
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Polkit is disabled by default. If you wish to enable it, you can set <code>security.polkit.enable</code> to true. | Polkit is disabled by default. If you wish to enable it, you can set <code>security.polkit.enable</code> to true. | ||
== Reboot/poweroff for unprivileged users == | |||
With the following rule, we can grant the permissions <code>reboot</code> and <code>poweroff</code> a machine to users in the <code> | |||
users</code> group. | |||
This is useful on a multi-user machine. It may also be of particular importance when using XRDP or other similar [[Remote Desktop]] solutions. | |||
{{file|/etc/nixos/configuration.nix|nix|<nowiki> | |||
security.polkit.extraConfig = '' | |||
polkit.addRule(function(action, subject) { | |||
if ( | |||
subject.isInGroup("users") | |||
&& ( | |||
action.id == "org.freedesktop.login1.reboot" || | |||
action.id == "org.freedesktop.login1.reboot-multiple-sessions" || | |||
action.id == "org.freedesktop.login1.power-off" || | |||
action.id == "org.freedesktop.login1.power-off-multiple-sessions" | |||
) | |||
) | |||
{ | |||
return polkit.Result.YES; | |||
} | |||
}) | |||
''; | |||
</nowiki>}} | |||
== Authentication agents == | == Authentication agents == | ||
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For example, <code>polkit_gnome</code> is a GNOME-based authentication agent, but it will usually only autostart when used with GNOME, KDE, or Unity (examine its autostart file in <code>etc/xdg/autostart/polkit-gnome-authentication-agent-1.desktop</code> for details); otherwise you will need to start it yourself, e.g. by copying that autostart file to <code>~/.config/autostart/</code> and removing the parts that restrict it to GNOME/KDE/Unity. | For example, <code>polkit_gnome</code> is a GNOME-based authentication agent, but it will usually only autostart when used with GNOME, KDE, or Unity (examine its autostart file in <code>etc/xdg/autostart/polkit-gnome-authentication-agent-1.desktop</code> for details); otherwise you will need to start it yourself, e.g. by copying that autostart file to <code>~/.config/autostart/</code> and removing the parts that restrict it to GNOME/KDE/Unity. | ||
Alternatively, you can start it on login by creating a systemd user service: | |||
<syntaxhighlight lang="nix"> | |||
systemd = { | |||
user.services.polkit-gnome-authentication-agent-1 = { | |||
description = "polkit-gnome-authentication-agent-1"; | |||
wantedBy = [ "graphical-session.target" ]; | |||
wants = [ "graphical-session.target" ]; | |||
after = [ "graphical-session.target" ]; | |||
serviceConfig = { | |||
Type = "simple"; | |||
ExecStart = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1"; | |||
Restart = "on-failure"; | |||
RestartSec = 1; | |||
TimeoutStopSec = 10; | |||
}; | |||
}; | |||
}; | |||
</syntaxhighlight> | |||
Another option is <code>lxqt.lxqt-policykit</code>, which can be launched on login through the command <code>lxqt-policykit-agent</code> on e.g. Hyprland. | |||
== Start the authentication agent in dwm == | |||
If you use dwm patched with [https://dwm.suckless.org/patches/autostart/dwm-autostart-20210120-cb3f58a.diff dwm-autostart-20210120-cb3f58a.diff], you can add a command into <code>~/.dwm/autostart.sh</code> to start a polkit agent. Here take <code>mate.mate-polkit</code> for example: | |||
<syntaxhighlight lang=bash> | |||
#!/bin/sh | |||
# General stuff | |||
... | |||
/nix/store/$(ls -la /nix/store | grep 'mate-polkit' | grep '4096' | awk '{print $9}' | sed -n '$p')/libexec/polkit-mate-authentication-agent-1 & | |||
... | |||
</syntaxhighlight> | |||
Use this method, you won't need to change the codes even <code>mate.mate-polkit</code> gets an update. | |||
<syntaxhighlight lang=bash> | |||
#!/bin/sh | |||
... | |||
/nix/store/$(ls -la /nix/store | grep polkit-kde-agent | grep '^d' | awk '{print $9}')/libexec/polkit-kde-authentication-agent-1 & | |||
... | |||
</syntaxhighlight> | |||
The same but for <code>polkit-kde-agent</code> | |||