#!/bin/sh
#----------------------------------------------------------------------------
# /etc/ppp/ip-up - called whenever a (i)ppp connection has been come up
#
# Creation:        29.03.2000  fm
# Last Update:     $Id$
#----------------------------------------------------------------------------

run_ip_up ()
{
    case $interface in
    ppp0)                # it's DSL, map interface
        case $tty in
        "" | eth*| br* | /dev/ttyp0 | /dev/ttyS[0-4] | /dev/ttyUSB[0-4] | /dev/capi/0 | /dev/ttyACM0 | /dev/ttyHS[0-3] | /dev/gsmmodem )
            # empty: PPPoE, eth[0-9] in_kernel, else PPTP
            interface=pppoe
            >/var/run/pppoe.up
        ;;
        esac
    ;;
    esac

    echo $local >/var/run/$interface.ip                # store my own ip address

    #
    # default route is either
    #     default via <ip> dev <dev>
    # or
    #     default          dev <dev>
    def_gateway="<none>"
    def_route=`ip route show | grep ^default`
    route_dev=
    route_gw="<none>"
    if [ "$def_route" ]; then
        set $def_route
        case $# in
            3)  route_dev=$3 
                ;;
            5)  route_gw=$3
                route_dev=$5
                ;;
            *)  logger -t  "ip-up[$$]" "Unknown route format '$def_route'" ;;
        esac
    fi
    if [ -f /etc/default-route-interface ]             # default route existing?
    then
        read default_route_interface < /etc/default-route-interface
    else
        default_route_interface=$route_dev
        case $default_route_interface in
            ppp0) default_route_interface=pppoe ;;
        esac
    fi

    if [ "$default_route_interface" = "$interface" ]
    then
        logger -t  "ip-up[$$]" "default route interface '$interface' comes up"
        is_default_route='yes'
        > /var/run/online

        [ -f /var/run/$interface.gw ] && read def_gateway < /var/run/$interface.gw
        : ${def_gateway:="<none>"}
        if [ "$route_dev" ]
        then 
            if [ "$route_dev" != "$default_route_interface" -o \
                 "$route_gw"  != "$def_gateway" ]; then
                logger -t "ip-up[$$]" "changing default route from $route_gw:$route_dev to $def_gateway:$interface"
                case $def_gateway in
                    "<none>") ip route change default dev $real_interface ;;
                    *)        ip route change via $def_gateway ;;
                esac
            fi
        else
            ip route add default dev $real_interface
        fi
    else
        is_default_route='no'
    fi

    if [ -f /var/run/imond.pid ]
    then
        /usr/local/bin/imond-stat "$real_interface up $local"
    fi

    # Call all custom ip-ups
    for j in /etc/ppp/ip-up[0-9][0-9][0-9].*
    do
        if [ -f $j ]
        then
            logger -t "ip-up[$$]" "executing $j"
            . $j
        fi
    done

    if [ ! -f /var/run/ip-up.ppp-once ]
    then
        for j in /etc/ppp-once/ip-up[0-9][0-9][0-9].*
        do
            if [ -f $j ]
            then
                . $j
            fi
        done
    fi
}

script_op=up
. /etc/ppp/ip-up-down