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#!/bin/sh -e
#
# Copyright 2008 Marco d'Itri <md@Linux.IT>
#
# This script automatically starts networking when a DSL modem is connected
# and its ATM interface is ready.
#
#
# For PPPoE you can set PROTOCOL=2684bridged and then add something like
# this to /etc/network/interfaces:
#
# allow-hotplug nas0
# iface nas0 inet manual
# pre-up ip link set up $IFACE
# up pppd persist call dsl-provider
#
#
# Support for CLIP (Classical IP over ATM, RFC 1577) may be incomplete.
#
# defaults
[ "$IP_INTERFACE" ] || IP_INTERFACE='nas0'
[ "$VP" ] || VP='8'
[ "$VC" ] || VC='35'
if [ -e /etc/default/dsl-modem.agent ]; then
. /etc/default/dsl-modem.agent
fi
# just exit unless a protocol is configured
[ "$PROTOCOL" ] || exit 0
##############################################################################
wait_and_run_pppd() {
# this guarantees that everything pppd needs to work is ready
wait_for_file /dev/log
exec pppd persist call ${PPP_PEER:-dsl-provider}
}
wait_and_run_br2684ctl() {
wait_for_file /dev/log
exec br2684ctl $BR2684_ARGS -b -c ${IP_INTERFACE#nas} \
-a ${ATM_INTERFACE}.${VP}.${VC}
}
wait_and_run_atmarp() {
wait_for_file /var/run/atmarpd.table
# create the IP interface
atmarp -c ${IP_INTERFACE:-atm0}
# setup the VC
# atmarp -s 192.0.2.254 ${ATM_INTERFACE}.${VP}.${VC}
exec ifup ${IP_INTERFACE:-atm0} # XXX
}
##############################################################################
ATM_DRIVER=${NAME%%[0-9]*}
ATM_INTERFACE=${NAME##$ATM_DRIVER}
# is this a DSL modem?
case "$ATM_DRIVER" in
cxacru|speedtch|ueagle-atm|xusbatm|UNICORN) ;;
*) exit 0 ;;
esac
cd /lib/udev/
. ./hotplug.functions
##############################################################################
case "$ACTION" in
add)
case "$PROTOCOL" in
pppoa) wait_and_run_pppd & ;;
2684bridged) wait_and_run_br2684ctl & ;;
clip) wait_and_run_atmarp & ;;
esac
;;
remove)
case "$PROTOCOL" in
pppoa)
# pppd will terminate automatically
;;
2684bridged)
PIDFILE="/var/run/br2684ctl-$IP_INTERFACE.pid"
if [ -e $PIDFILE ]; then
kill $(cat $PIDFILE)
rm -f $PIDFILE
fi
;;
clip)
ifdown ${IP_INTERFACE:-atm0} # XXX
# atmarp -d 192.0.2.254
;;
esac
;;
esac
exit 0
|
