#!/usr/bin/sh
#----------------------------------------------------------------------------
# fli4lctrl - extend isdnctrl program for dsl connections
#
#   called by imond
#
#   commands emulated for dsl (pppoe & pptp):
#
#       fli4lctrl hangup    pppoe
#       fli4lctrl dial      pppoe
#       fli4lctrl dialmode  pppoe   off|auto|manual
#       fli4lctrl status    pppoe
#
# Creation:     2000-11-14  fm
# Last Update:  $Id$
#
# Copyright (c) 2000-@@YEAR@@ the eisfair team, team(at)eisfair(dot)org
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#----------------------------------------------------------------------------

cmd=${1}
device=${2}
arg=${3}

case "${device}" in
    pppoe)  device=ppp0 ;;                           # map pppoe to ppp0
    i*)     exec /sbin/isdnctrl $* 2>/dev/null ;;    # start isdnctrl
esac

pgm_name=$(basename ${0})

    case "${cmd}" in
    hangup)
        if [ -f /run/pppoe.up ]
        then
            if [ -f /run/pppoe.pid ]
            then
                exec kill -9 $(cat /run/pppoe.pid) 2>/dev/null
            else
                # This doesn't work because one of the two pptp processes
                # die if we send a SIGHUP:
                # exec kill -1 `cat /var/run/ppp0.pid` 2>/dev/null

                # Here we kill pppd, etc/rc.d/pptp restarts it with
                # defaultroute, because fli4lctrl cannot set the default
                # route again to ppp0 - not existant :-(
                exec kill $(cat /run/ppp0.pid) 2>/dev/null
            fi
        fi
        ;;

    dial)
        dialmode=$(cat /run/pppoe.dialmode)

        case "${dialmode}" in
        off)
                /usr/sbin/ip route del default 2>/dev/null
            echo "${pgm_name}: pppoe dialmode is off" >&2
            exit 1
            ;;
        auto)
                /usr/sbin/ip route del default 2>/dev/null
                /usr/sbin/ip route add default dev ${device}

            (
                /usr/bin/ping -c 1 www.fli4l.de 2>/dev/null
                sleep 1

                i=1
                while [ ${i} -le 5 ]
                do
                    /usr/bin/ping -c 1 www.fli4l.de 2>/dev/null

                    if [ ${?} -eq 0 ]
                    then
                        break
                    fi

                    sleep 2
                    i=$((${i} + 1))
                done
            ) >/dev/null &
            ;;
        manual)
                /usr/sbin/ip route del default 2>/dev/null
                /usr/sbin/ip route add default dev ${device}

            (
                /usr/bin/ping -c 1 www.fli4l.de 2>/dev/null
                sleep 1

                i=1
                while [ ${i} -le 5 ]
                do
                    /usr/bin/ping -c 1 www.fli4l.de 2>/dev/null

                    if [ ${?} -eq 0 ]
                    then
                        break
                    fi
                    sleep 2
                    i=$((${i} + 1))
                done
            ) >/dev/null &
            ;;
        *)
            echo "${pgm_name}: unknown dialmode in /run/pppoe.dialmode" >&2
            exit 2
            ;;
        esac
        ;;

    dialmode)
        case "$arg" in
            off)
                /usr/bin/delete-all-routes ${device}
                echo ${arg} >/run/pppoe.dialmode
                ;;
            auto)
               /usr/sbin/ip route del default 2>/dev/null

                dri=$(cat /etc/default-route-interface 2>/dev/null)
                if [ "${dri}" = "pppoe" ]
                then
                    /usr/sbin/ip route add default dev ${device}
                fi
                echo ${arg} >/run/pppoe.dialmode
                ;;
            manual)
                /usr/bin/delete-all-routes ${device}
                echo ${arg} >/run/pppoe.dialmode
                ;;
            *)
                echo "${pgm_name}: invalid arguments" >&2
                exit 2
            ;;
        esac
        ;;

    status)
        if [ -f /run/pppoe.up ]
        then
            echo "online"
            exit 1                              # exit code 1 if online
        fi
        echo "offline"
        exit 0                                  # exit code 0 if offline
        ;;

    *)
        echo "${pgm_name}: invalid arguments" >&2
        exit 2
        ;;
    esac

exit 0
# ---------------------------------------------------------------------------
# end
# ---------------------------------------------------------------------------