Arch Linux User Repository

Arch’s GitLab instance is currently broken(?), so I can’t edit configuration, but merge requests against the package are(/will be) welcome at https://gitlab.archlinux.org/freso/networkmanager-dispatcher-chrony when I’m able to configure repository settings again (default settings aren’t allowing me to upload the existing history).

I made this much simpler script, please provide feedback

#!/bin/bash
case $2 in
    connectivity-change)
        case $CONNECTIVITY_STATE in
            FULL)
                chronyc online
                echo "chronyd taken online"
            ;;
            UNKNOWN|NONE|PORTAL|LIMITED)
                chronyc offline
                echo "chronyd taken offline"
            ;;
        esac
    ;;
    vpn-up|vpn-down)
        chronyc offline
        chronyc online
        echo "chronyd taken online"
    ;;

esac

@Freso, there is a merge request on your gitlab, please review

Please add sh to deps.

Arch’s GitLab instance is currently broken(?), so I can’t edit configuration, but merge requests against the package are(/will be) welcome at https://gitlab.archlinux.org/freso/networkmanager-dispatcher-chrony when I’m able to configure repository settings again (default settings aren’t allowing me to upload the existing history).

I made some modifications, namely excluding the lo interface, using a different connectivity check, and checking connectivity on any action. Hopefully this is useful to someone.

#!/bin/sh

INTERFACE=$1
STATUS=$2

# Make sure we're always getting the standard response strings
LANG='C'

CHRONY=$(which chronyc)

chrony_cmd() {
  echo "Chrony going $1."
  exec $CHRONY -a $1
}

nm_connected() {
  # Let networkmanager check if we are able to reach the internet
  [ "$(nmcli networking connectivity check)" = 'full' ]
}

case "$STATUS" in
  up|vpn-up)
    if [ "$INTERFACE" != "lo" ]; then
      # Check for full connectivity, take online if connected
      nm_connected && chrony_cmd online
    fi
  ;;
  down|vpn-down)
    if [ "$INTERFACE" != "lo" ]; then
      # Check for full connectivity, take offline if not connected
      nm_connected || chrony_cmd offline
    fi
  ;;
esac

The current logic of the dispatcher script causes chrony to go online as soon as the loopback device goes up. It sort of contradicts the purpose of the script halting chrony when no connection is available. My suggestions: Either do the same connectedness check before going online as going offline, or blacklist devices like lo from the script. Beware that the result of nmcli g at the time where the dispatcher is running could be connected (site only) instead of connected. Also I would like to point to the possibility of using chronyc onoffline to let chrony decide whether to go on- or offline. However, I'm having trouble with a dispatcher script using onoffline, in that chrony remains offline after my WLAN connects automatically on startup. Using online instead, or connecting only after startup has finished, doesn't pose the problem.

I made some small changes to add NTP servers from DHCP and use chrony's built in network route detection to mark servers on/offline. If anyone is interested, I've put a copy up at the link below:

• https://gist.github.com/pcmoore/b6942a144419f8ddb981af4239f46966

This script is errorring because it can't find 'which'. The error in the systemd journal is

/etc/NetworkManager/dispatcher.d/10-chrony: line 9: which: command not found

Instead it is possible to use 'command -v' to get the path of chronyc on line 9.

https://ptpb.pw/CW6Q has a patch that has been confirmed working.