sessiond registers, tracks and exposes login sessions. The core stays small: device access, power actions, backlight control and per-user hooks are handled by optional client daemons.

Features #

Session registration through a PAM module (pam_sessiond.so)
Session and user tracking, with a cgroup for each session
Lingering users
Inhibitors
Session state recovery across daemon restarts
Partial ConsoleKit D-Bus interface for drop in replacement
sd_notify readiness notifications

Components #

Component	Description
`sessiond`	The core daemon
`sessionctl`	Command-line tool to query and control sessions
`pam_sessiond.so`	PAM module that registers sessions
`sessiond-uaccess`	Gives active local sessions access to devices (POSIX ACLs)
`sessiond-power`	Handles authorized power actions
`sessiond-backlight`	Controls backlight and LED brightness for active local sessions
`sessiond-hooks`	Launches and supervises per-user session hooks
`libsession`	Generic library for querying session info across all session managers

Installation #

NixOS and finix modules are provided:

services.sessiond.enable = true;

See the documentation for NixOS, finix and building from source.

Documentation #

https://r0chd.tngl.sh/sessiond

Development #

Development happens on Tangled. The GitHub repository is a read-only mirror.

Contributions created with AI tools are not accepted. See CONTRIBUTING.md for details.

License #

GPL-3.0-only. See LICENSE.

Clone this repository

sessiond #