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#!/bin/sh
. /etc/functions.sh
type=$1
[ "$(nvram get ${type}_proto)" = "pptp" ] || exit
[ -d "/var/lock" ] || mkdir -p /var/lock || exit 1
for module in slhc ppp_generic ppp_async ip_gre; do
/sbin/insmod $module 2>&- >&-
done
PPTP_PROTO="$(nvram get pptp_proto)"
[ "$PPTP_PROTO" = "static" ] || PPTP_PROTO=""
PPTP_PROTO="${PPTP_PROTO:-dhcp}"
IP=$(nvram get pptp_server_ip)
USERNAME=$(nvram get ppp_username)
PASSWORD=$(nvram get ppp_passwd)
KEEPALIVE=$(nvram get ppp_redialperiod)
KEEPALIVE=${KEEPALIVE:+lcp-echo-interval 10 lcp-echo-failure $KEEPALIVE}
DEMAND=$(nvram get ppp_demand)
case "$DEMAND" in
on|1|enabled)
DEMAND=$(nvram get ppp_idletime)
DEMAND=${IDLETIME:+demand idle $IDLETIME}
;;
*) DEMAND="persist";;
esac
MTU=$(nvram get ppp_mtu)
MTU=${MTU:-1452}
do_ifup $PPTP_PROTO $type
# hack for some buggy ISPs
NETMASK=$(nvram get ${type}_netmask)
IFNAME=$(nvram get pptp_ifname)
[ -z "$NETMASK" -o -z "$IFNAME" ] || ifconfig $IFNAME netmask $NETMASK
/usr/sbin/pppd nodetach \
pty "/usr/sbin/pptp $IP --loglevel 0 --nolaunchpppd" \
file /etc/ppp/options.pptp \
connect /bin/true \
usepeerdns \
defaultroute \
replacedefaultroute \
linkname "$type" \
ipparam "$type" \
user "$USERNAME" \
password "$PASSWORD" \
mtu $MTU mru $MTU \
$DEMAND \
$KEEPALIVE
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