#!/bin/sh
### BEGIN INIT INFO
# Provides:          vyatta-config-reboot-params
# Required-Start:    $local_fs
# Required-Stop:
# X-Start-Before:    module-init-tools
# Default-Start:     S
# Default-Stop:
# Short-Description: Change system config parameters based on Vyatta configuration
# Description:       Provide a way for changing system settings that can only
#                    be changed on reboot from Vyatta configuration.
### END INIT INFO

# This script runs very early in the boot process so that parameters
# requiring a reboot get set to the same value as in the config file.
#
# To show how the underlying value can be different than the parameter
# in config file, let's take the case of 'firewall conntrack-hash-size'
# which requires a reboot after it is changed to a different value: user
# sets conntrack-hash-size but doesn't save config; then on reboot
# conntrack module loads with a different value of conntrack-hash-size
# than parameter in config file. When config file loads at a later
# stage, underlying value for conntrack-hash-size gets set to parameter
# in config file but for that to take affect another reboot is required.

: ${vyatta_env:=/etc/default/vyatta}
source $vyatta_env

case "$1" in
  start) ;;
  stop|restart|force-reload|status) exit 0 ;;
  *) echo "Usage: $0 {start|stop|restart|force-reload}" >&2; exit 1 ;;
esac

declare -x BOOTFILE=$vyatta_sysconfdir/config/config.boot

# Check if config file exists, exit otherwise
if [ ! -f $BOOTFILE ]; then
    exit 0
fi

# Execute all subordinate scripts in
# /opt/vyatta/bin/sudo-users/check-params-on-reboot.d
run-parts -a $BOOTFILE /opt/vyatta/bin/sudo-users/check-params-on-reboot.d