#!/bin/sh
#----------------------------------------------------------------------------
# /etc/rc.d/rc340.circuits.pppoe_in_kernel - configuration of PPPoE
# was file /etc/rc.d/pppoe
#
# Creation:     09.09.2000 fm
# Last Update:  $Id$
#----------------------------------------------------------------------------

case $OPT_PPPOE in
yes)
    begin_script CIRCUITS_PPPOE "starting pppoe ..."
    
    : ${PPPOE_NF_MSS:=MTU}
    lcp_interval=30                                 # LCP interval
    lcp_failure=5                                   # LCP failure count
    pppoe_timeout=120                               # should be 4 * lcp_interval

    ip link set $PPPOE_ETH mtu 1500                 # set mtu to 1500
    ip link set $PPPOE_ETH up


    debug=''
    usepeerdns=''
    active_filter=''
    idle=

    case "$PPPOE_DEBUG" in
	yes) debug='debug' ;;
    esac

    case ${DIALMODE}${PPPOE_HUP_TIMEOUT} in
    autonever)
	mode=persist
	;;
    *)
	case "$PPPOE_FILTER" in
	    yes) active_filter='precompiled-active-filter /etc/ppp/filter'
	esac
	mode=demand
	idle="idle $PPPOE_HUP_TIMEOUT"
	;;
    esac

    case "$PPPOE_USEPEERDNS" in
	yes) usepeerdns='usepeerdns' ;;
    esac

    pppoe_dev=$PPPOE_ETH
    case $pppoe_dev in
	br*|dummy*)
	    pppoe_dev="nic-$pppoe_dev"
	    ;;
    esac

    echo "\"$PPPOE_USER\"  *  \"$PPPOE_PASS\"  *" >> /etc/ppp/pap-secrets

    do_modprobe pppoe

    if [ "$START_IMOND" = "yes" ]
    then
        defaultroute=''                             # imond handles default route
        echo $DIALMODE >/var/run/pppoe.dialmode
    else
        defaultroute='defaultroute'
        echo auto >/var/run/pppoe.dialmode
    fi

    eval mtu="$PPPOE_MTU"
    eval mru="$PPPOE_MRU"
    : ${mtu:=1492}
    : ${mru:=1492}

    local=10.112.112.112
    remote=10.112.112.113

    case "$OPT_IPV6" in
	yes)
            ipv6enable='+ipv6'
            ipv6ifidentifier='ipv6 0::200:0:0:1,0::200:0:0:2'
	    ;;
	*)
            ipv6enable='noipv6'
            ipv6ifidentifier=''
	    ;;
    esac

    dev=pppoe
    echo $local >/var/run/$dev.conf
    echo $remote >>/var/run/$dev.conf

    mkdir -p /etc/ppp/peers
    cat <<EOF > /etc/ppp/peers/circuit.$dev
$usepeerdns
plugin rp-pppoe.so
noipdefault
noauth
$defaultroute
hide-password
nodetach
local
$debug
mtu $mtu
mru $mru
noaccomp
noccp
nobsdcomp
nodeflate
nopcomp
novj
novjccomp
user "$PPPOE_USER"
lcp-echo-interval $lcp_interval
lcp-echo-failure $lcp_failure
holdoff 3
maxfail 0
$local:$remote
$ipv6enable
$ipv6ifidentifier
ipcp-accept-remote
ipcp-accept-local
connect true
ktune
$mode
$idle
$active_filter
EOF

    while true
    do
	pppd call circuit.$dev $pppoe_dev
	[ -f /etc/ppp/peers/circuit.$dev ] || exit 1
	imond-stat "pppoe: restart"
    done &

    case $PPPOE_NF_MSS in
	MTU) tcpmss_opt=--clamp-mss-to-pmtu ;;
	*)   tcpmss_opt="--set-mss $PPPOE_NF_MSS" ;;
    esac
    echo "/sbin/iptables -I FORWARD -o \`cat /var/run/pppoe-device\` -p tcp --tcp-flags SYN,RST SYN -j TCPMSS $tcpmss_opt" > /etc/rc.d/fwrules.pre.pppoe

    if [ -f /usr/local/sbin/pppoe-status ]
    then
        /usr/local/sbin/pppoe-status >/dev/tty3 &
    fi

    type=pppoe
    times="$PPPOE_TIMES"
    usepeerdns="$PPPOE_USEPEERDNS"
    name="$PPPOE_NAME"
    chargeint="$PPPOE_CHARGEINT"
    case ${PPPOE_HUP_TIMEOUT} in
        never) hup_timeout='0' ;;
        *) hup_timeout="$PPPOE_HUP_TIMEOUT" ;;
    esac

    . /etc/rc.d/dsl-circuit-common

    > /var/run/pppoe.HUP

    end_script
;;
esac