#!/bin/bash
# Do not edit this file, use ip-up.local instead.
# (C) 1997-2004 SuSE Linux AG, Nuernberg, Germany
# Klaus Franken 25.02.1998
# Remo Behn 18.07.1998
# Arvin Schnell 28.02.2002
# Ludwig Nussel 26.02.2004
# Send suggestions and comments to
http://www.suse.de/feedback/
BASENAME=${0##*/}
INTERFACE=$1
DEVICE=$2
SPEED=$3
LOCALIP=$4
REMOTEIP=$5
IPPARAM=$6
# send all output to syslog
exec > >(logger -p security.notice -t "$BASENAME") 2>&1
if [ -z "$REMOTEIP" ]; then
echo "Usage: $0 <INTERFACE> <DEVICE> <SPEED> <LOCALIP> <REMOTEIP>"
exit 1
fi
TERM=raw
export TERM
# smpppd-1.14 passes two single quoted paramters in $IPPARAM. The first one is
# the ifcfg filename, the second the provider.
parse_ipparam()
{
case "$IPPARAM" in
\'ifcfg-*) ;;
*) return ;;
esac
eval set -- $IPPARAM
[ "$#" -ne 2 ] && return
ifcfg=${1##ifcfg-}
provider=$2
export ifcfg provider
}
# Automatic configuration of your resolv.conf for peer supplied DNS addresses
# when using the 'usepeerdns' option ('ms-get-dns' for ipppd). Original
# resolv.conf is restored when ip-down is called by pppd when the link goes
# down.
add_nameservers()
{
[ -z "$USEPEERDNS" ] && return
if [ -z "$isdn" ]; then
[ ! -f /etc/ppp/resolv.conf ] && return
/sbin/modify_resolvconf modify -s pppd -p pppd -e "$INTERFACE" \
-f /etc/ppp/ip-up -n "$DNS1 $DNS2" -t - <<-EOT
If you do not want the pppd to change your nameserver settings
set MODIFYDNS=no in the config file for this provider in
/etc/sysconfig/network/providers/ and ensure that the option
usepeerdns is not set in /etc/ppp/options.
EOT
else
[ -z "$MS_DNS1" ] && return
/sbin/modify_resolvconf modify -s ipppd -p ipppd -e "$INTERFACE" \
-f /etc/ppp/ip-up -n "$MS_DNS1 $MS_DNS2" -t - <<-EOT
If you do not like the ipppd to change your nameserver
settings remove the option MODIFYDNS for this provider
EOT
fi
}
# restore the original resolv.conf saved when ip-up was called by the
# pppd which uses the `usepeerdns' option and resolv.conf was modified
# for the supplied dns server adresses.
restore_nameservers()
{
[ -z "$USEPEERDNS" ] && return
if [ -z "$isdn" ]; then
[ ! -f /etc/ppp/resolv.conf ] && return
/sbin/modify_resolvconf restore -s pppd -e "$INTERFACE"
else
[ -z "$MS_DNS1" ] && return
/sbin/modify_resolvconf restore -s ipppd -e "$INTERFACE"
fi
}
# using this function currently breaks Dial On Demand setups, because
# ifdown finally removes the device so the function calls are disabled
# now (bug #3904
# run ifdown script to execute additional scripts
run_ifdown()
{
[ -z "$ifcfg" -o -z "$INTERFACE" ] && return
/sbin/ifdown $ifcfg $INTERFACE -o dhcp 2>&1 | logger -t ifdown
}
# run ifup script to execute additional scripts
run_ifup()
{
[ -z "$ifcfg" -o -z "$INTERFACE" ] && return
/sbin/ifup $ifcfg $INTERFACE -o dhcp 2>&1 | logger -t ifup
}
# start SuSEfirewall2 if configured
# TODO: let ifup/ifdown handle this
start_firewall()
{
test "$FIREWALL" = "no" && return
if /sbin/chkconfig --check SuSEfirewall2_setup; then
/sbin/SuSEfirewall2 start
fi
}
# /etc/ppp/poll.tcpip as shipped is able to set the system clock using
# ntpdate (see the NTPD_INITIAL_NTPDATE setting in
# /etc/sysconfig/ntp). It supports fetchmail with a system-wide
# /etc/fetchmailrc and can use UUCP to fetch mail over TCP/IP, provided
# that UUCP is configured properly. Last not least it also calls
# sendmail to send any queued mail
run_poll_tcpip()
{
[ "$RUN_POLL_TCPIP" = "no" ] && return
/etc/ppp/poll.tcpip | logger -p security.notice -t poll.tcpip > /dev/null &
}
isdn_restartinterface()
{
[ -z "$isdn" ] && return;
LINK_OPT=""
test "$DYNAMICIP" = "yes" && LINK_OPT="$LINK_OPT dynamic on"
/sbin/ip addr flush dev $INTERFACE
/sbin/ip link set $INTERFACE down
/sbin/ip link set $INTERFACE up $LINK_OPT
/sbin/ip addr add dev $INTERFACE local $IPADDR peer $PTPADDR
# set routes from /etc/sysconfig/network/routes (only for dod)
if [ "$DIALMODE" = "auto" ] ; then
/etc/sysconfig/network/scripts/ifup-route $INTERFACE
fi
}
parse_ipparam
isdn="" # non-zero if called by ipppd
case "$INTERFACE" in
ippp*)
[ -z "$ifcfg" ] && ifcfg="$INTERFACE"
isdn=yes
;;
*)
;;
esac
#########
# TODO: let ifup/ifdown handle this
# config file common to all interfaces, needed for global firewall setting
. /etc/sysconfig/network/config
# interface specific config file if any
if [ -n "$ifcfg" -a -r /etc/sysconfig/network/ifcfg-"$ifcfg" ]; then
. /etc/sysconfig/network/ifcfg-"$ifcfg"
fi
#########
case "$BASENAME" in
ip-up)
add_nameservers
# ip_resend hook
test "$IP_RESEND" = "yes" -a -x /usr/sbin/ip_resend_wakeup && \
/usr/sbin/ip_resend_wakeup -m $LOCALIP -o $INTERFACE
start_firewall
run_poll_tcpip
# call ip-up.local if it exists and is executable:
if test -x /etc/ppp/ip-up.local ; then
/etc/ppp/ip-up.local "$@" | logger -p security.notice -t ip-up.local > /dev/null &
fi
# run additional scripts if they exist
if [ -d /etc/ppp/ip-up.d ]; then
for SCRIPT in /etc/ppp/ip-up.d/*; do
[ -d $SCRIPT -o ! -x $SCRIPT ] && continue;
# ignore backup files and leftovers from rpm
case $SCRIPT in
*.rpmsave|*.rpmnew|*rpmorig|*~) continue ;;
esac
$SCRIPT "$@" | logger -p security.notice -t $SCRIPT > /dev/null &
done
fi
#run_ifup
;;
ip-down)
restore_nameservers
isdn_restartinterface
start_firewall
# call ip-down.local if it exists and is executable:
if test -x /etc/ppp/ip-down.local ; then
/etc/ppp/ip-down.local "$@" | logger -p security.notice -t ip-down.local > /dev/null &
fi
# ip_resend hook
test "$IP_RESEND" = "yes" -a -x /usr/sbin/ip_resend && \
/usr/sbin/ip_resend -o $INTERFACE $IP_RESEND_PARAMETER
# run additional scripts if they exist
if [ -d /etc/ppp/ip-down.d ]; then
for SCRIPT in /etc/ppp/ip-down.d/*; do
[ -d $SCRIPT -o ! -x $SCRIPT ] && continue;
# ignore backup files and leftovers from rpm
case $SCRIPT in
*.rpmsave|*.rpmnew|*rpmorig|*~) continue ;;
esac
$SCRIPT "$@" | logger -p security.notice -t $SCRIPT > /dev/null &
done
fi
#run_ifdown
;;
*)
;;
esac
Habe in die ip-up reingeschaut. Habe dort eine Erklärung gefunden, in der von fetchmail die Rede ist (Text hinter #),
