Jonathan BennettandClaude Opus 5 8b8dc611c7 feat(portduino): add a test-menu action to power off the host (#11920) ...

A portduino node is a process on a computer that outlives it. shutdown() ends
at exit(EXIT_SUCCESS), so "Shutdown" only stops the daemon -- and the shipped
unit sets Restart=always, which makes it a restart in practice. There is no way
from the node's UI to halt the machine it runs on.

Add "Power Off Host" to the hidden test menu, behind its own confirmation. It is
kept separate from shutdownMenu() because the two mean different things: one
ends the node, the other ends the machine, and on a headless node nothing brings
the host back.

Confirming raises hostPowerOffRequested and then injects the ordinary
INPUT_BROKER_SHUTDOWN, so the normal sequence still runs and the NodeDB, message
store and waypoints are saved exactly as for any other shutdown. Only at the
portduino arm does it hand off to logind, falling through to exit() if that is
refused rather than claiming to shut down and sitting there.

The call is org.freedesktop.login1.Manager.PowerOff with interactive=false: the
daemon has no session and no way to answer a polkit prompt, so asking for one
would hang until timeout. It opens its own bus connection rather than reusing
the BLE backend's, which may already be torn down by then.

meshtasticd runs unprivileged with no session, so logind's default of
auth_admin_keep refuses it. bin/polkit-1/meshtasticd.rules grants the two
power-off actions to that one user, shipped from both the deb and the rpm
alongside the existing D-Bus policy. It deliberately does not grant
power-off-ignore-inhibit, so a package upgrade or a held lock still blocks the
halt; power-off-multiple-sessions is granted because logind escalates to it
whenever anyone is logged in, which on a node someone has SSH'd into is the
normal case.

HAS_HOST_POWEROFF gets its own __has_include test rather than reusing
HAS_BLUETOOTH: the two share a transport, not a purpose, and a build with
Bluetooth off should still be able to halt the box.

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

2026-10-02 17:54:37 +00:00

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meshtasticd.rules

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