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

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

# ifup-post for PPP is handled through /etc/ppp/ip-up

if [ "${1}" = daemon ] ; then
  # we've been called from ppp-watch, so don't invoke it for persistence
  shift
else
  # just in case a full path to the configuration file is passed in
  CONFIG=$(basename $1)
  [ -f "${CONFIG}" ] || CONFIG=ifcfg-${1}
  source_config
  if [ "${DEMAND}" != yes ] ; then
    # let ppp-watch do the right thing
    shift
    exec /sbin/ppp-watch "${DEVICE}" "$@"
  fi
fi

CONFIG=$1
[ -f "${CONFIG}" ] || CONFIG=ifcfg-${1}
source_config

if [ -z "${DISCONNECTTIMEOUT}" ]; then
  DISCONNECTTIMEOUT=2
fi

if [ -z "${RETRYTIMEOUT}" ]; then
  RETRYTIMEOUT=30
fi

if [ "${2}" = "boot" -a "${ONBOOT}" = "no" ]; then
  exit
fi

[ -x /usr/sbin/pppd ] || {
  echo "/usr/sbin/pppd does not exist or is not executable"
  echo "ifup-ppp for ${DEVICE} exiting"
  logger -p daemon.info -t ifup-ppp \
    "/usr/sbin/pppd does not exist or is not executable for ${DEVICE}"
  exit 1
}

[ -n "${WVDIALSECT}" -o -f /etc/sysconfig/network-scripts/chat-${DEVICE} ] || {
  echo "/etc/sysconfig/network-scripts/chat-${DEVICE} does not exist"
  echo "ifup-ppp for ${DEVICE} exiting"
  logger -p daemon.info -t ifup-ppp \
    "/etc/sysconfig/network-scripts/chat-${DEVICE} does not exist for ${DEVICE}"
  exit 1
}

opts="lock"
if [ "${HARDFLOWCTL}" != no ] ; then
  opts="$opts modem crtscts"
fi
if [ "${ESCAPECHARS}" != yes ] ; then
  opts="$opts asyncmap 00000000"
fi
if [ "${DEFROUTE}" != no ] ; then
  # pppd will no longer delete an existing default route
  # so we have to help it out a little here.
  route del default >/dev/null 2>&1
  opts="$opts defaultroute"
fi
if [ "${PEERDNS}" != no ] ; then
  opts="$opts usepeerdns"
fi
if [ -n "${MRU}" ] ; then
  opts="$opts mru ${MRU}"
fi
if [ -n "${MTU}" ] ; then
  opts="$opts mtu ${MTU}"
fi
if [ -n "${IPADDR}${REMIP}" ] ; then
  # if either IP address is set, the following will work.
  opts="$opts ${IPADDR}:${REMIP}"
fi
if [ -n "${PAPNAME}" ] ; then
  opts="$opts user ${PAPNAME} remotename ${DEVNAME}"
fi
if [ "${DEBUG}" = yes ] ; then
  opts="$opts debug"
  chatdbg="-v"
fi
if [ ${DEMAND} = yes ] ; then
  if [ -n "${IDLETIMEOUT}" ] ; then
    opts="$opts demand idle ${IDLETIMEOUT}"
  else
    opts="$opts demand idle 600"
  fi
else
  opts="$opts nodetach"
fi

if [ -z "${WVDIALSECT}" ] ; then
  CHATSCRIPT=/etc/sysconfig/network-scripts/chat-${DEVNAME}
  [ -f "${CHATSCRIPT}" ] || {
    CHATSCRIPT=/etc/sysconfig/network-scripts/chat-${PARENTDEVNAME}
  }
else
  CHATSCRIPT=
fi

(logger -p daemon.info -t ifup-ppp \
  "pppd started for ${DEVICE} on ${MODEMPORT} at ${LINESPEED}" &)&

if [ -n "${WVDIALSECT}" ] ; then
  exec /usr/sbin/pppd $opts ${MODEMPORT} ${LINESPEED} \
    ipparam ${DEVICE} linkname ${DEVICE} \
    noauth \
    ${PPPOPTIONS} \
    connect "/usr/bin/wvdial --remotename ${DEVICE} --chat ${WVDIALSECT}"
else
  exec /usr/sbin/pppd $opts ${MODEMPORT} ${LINESPEED} \
    ipparam ${DEVICE} linkname ${DEVICE} \
    noauth \
    ${PPPOPTIONS} \
    connect "/usr/sbin/chat $chatdbg -f ${CHATSCRIPT}"
fi