sysconfig/network-scripts/ifdown-ppp


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#!/bin/bash
PATH=/sbin:/usr/sbin:/bin:/usr/bin

cd /etc/sysconfig/network-scripts
. network-functions

CONFIG=$1
source_config

if [ ! -f /var/run/ppp-$DEVICE.pid ]; then
    # ppp isn't running, or we didn't start it
    exit 0
fi

file=/var/run/ppp-$DEVICE.pid

# signals ifup-ppp not to persist -- must do this before exiting if PPP
# has not yet started ($file does not exist).
rm -f /var/run/ppp-$DEVICE.dev

if [ ! -f $file ]; then
    exit 0
fi

PID=`head -1 $file`
if [ -z "$PID" ]; then
  exit 1
fi

# pppd might have chat/wvdial as a child; remember its pid to kill after pppd.
# (After, not before, so that pppd doesn't just restart it).

CHATPID=`ps axl | awk '$4 ~ /^'"$PID"'$/ {print $3}' 2>/dev/null`

kill $PID > /dev/null 2>&1
[ -n "$CHATPID" ] && kill $CHATPID > /dev/null 2>&1
if [ ! -d /proc/$PID ]; then
  exit 0
fi
sleep 2
if [ ! -d /proc/$PID ]; then
  exit 0
fi

kill -KILL $PID > /dev/null 2>&1
if [ -d /proc/$PID ]; then
  logger -p daemon.info -t ifdown-ppp "ifdown-ppp unable to kill pppd-$DEVICE" &
else
  # ip-down won't run in this case
  /etc/sysconfig/network-scripts/ifdown-post $1
fi

exit 1