#!/bin/bash
VER=1.0
# ============================================================================
#
# Copyright (C) THALES. All rights reserved
# Author: Laurent Mazet
# Date : 15/12/2014
# ============================================================================

### BEGIN INIT INFO
# Provides:          checkudevrules
# Required-Start:    udev checkroot
# Required-Stop:
# Should-Start:
# Default-Start:     S
# Default-Stop:
# Short-Description: Check udev rules
# Description:       Check udev rules files (70-persistent-*.rules) and reboot if necessary
### END INIT INFO

FILES="/etc/udev/rules.d/70-persistent-{cd,net}.rules"
ENABLE="yes"
ETHx=eth0

PATH=/sbin:/usr/sbin:/bin:/usr/bin

[ -f /etc/default/checkudevrules ] && . /etc/default/checkudevrules
[ "$ENABLE" = "yes" ] || exit 0

. /lib/lsb/init-functions

do_check () {

    log_action_msg "Check if $ETHx exists..."

    if ip link show $ETHx >&/dev/null; then
        log_action_msg "Continue booting"
    else
        log_action_msg "Erase udev rules and reboot"
        eval rm -f $FILES
        reboot
    fi
}

case "$1" in
    -v)
        echo "$(basename $0), version $VER"
	;;
    start)
        do_check
        ;;
    restart|reload|force-reload|stop)
        echo "Error: argument '$1' not supported" >&2
        exit 3
        ;;
    *)
        echo "Usage: $0 start" >&2
        exit 3
        ;;
esac

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