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nix: add assertions to make sure dbus can provide pidfd #8

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LordGrimmauld merged 1 commit into from
Jan 31, 2026
+21 −0
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nix: add assertions to make sure dbus can provide pidfd #8

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21 changes: 21 additions & 0 deletions flake.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -151,6 +151,27 @@
};
})
(lib.mkIf config.security.polkit.persistentAuthentication {
assertions =
let
mkMessage = (
package: minVer: ''
To provide persistent authentication, Polkit requires `pidfd` support when fetching process details from D-Bus, which is only available in `${package}` version ${minVer} or later.

Please update the package or switch `services.dbus.implementation` in the configuration.
''
);
in
[
(lib.mkIf (config.services.dbus.implementation == "dbus") {
assertion = lib.versionAtLeast config.services.dbus.dbusPackage.version "1.15.7";
message = mkMessage "dbus" "1.15.7";
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})
(lib.mkIf (config.services.dbus.implementation == "broker") {
assertion = lib.versionAtLeast config.services.dbus.brokerPackage.version "34";
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message = mkMessage "dbus-broker" "34";
})
];

security.polkit.extraConfig = ''
polkit.addRule(function(action, subject) {
if (action.id == "org.freedesktop.policykit.exec") {
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