#!/bin/sh ######################################################################## # Begin /lib/services/ipv4-static # # Description : IPV4 Static Boot Script # # Authors : Nathan Coulson - nathan@linuxfromscratch.org # Kevin P. Fleming - kpfleming@linuxfromscratch.org # Update : Bruce Dubbs - bdubbs@linuxfromscratch.org # # Version : LFS 7.0 # ######################################################################## #. /lib/lsb/init-functions . ${IFCONFIG} if [ -z "${IP}" ]; then echo "IP variable missing from ${IFCONFIG}, cannot continue." exit 1 fi if [ -z "${PREFIX}" -a -z "${PEER}" ]; then echo "PREFIX variable missing from ${IFCONFIG}, assuming 24." PREFIX=24 args="${args} ${IP}/${PREFIX}" elif [ -n "${PREFIX}" -a -n "${PEER}" ]; then echo "PREFIX and PEER both specified in ${IFCONFIG}, cannot continue." exit 1 elif [ -n "${PREFIX}" ]; then args="${args} ${IP}/${PREFIX}" elif [ -n "${PEER}" ]; then args="${args} ${IP} peer ${PEER}" fi if [ -n "${BROADCAST}" ]; then args="${args} broadcast ${BROADCAST}" fi case "${2}" in up) if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" = "" ]; then # Cosmetic output not needed for multiple services #if ! $(echo ${SERVICE} | grep -q " "); then # echo "" # Terminate the previous message #fi echo "Adding IPv4 address ${IP} to the ${1} interface..." ip addr add ${args} dev ${1} #evaluate_retval else echo "Cannot add IPv4 address ${IP} to ${1}. Already present." fi ;; down) if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" != "" ]; then echo "Removing IPv4 address ${IP} from the ${1} interface..." ip addr del ${args} dev ${1} #evaluate_retval fi if [ -n "${GATEWAY}" ]; then # Only remove the gateway if there are no remaining ipv4 addresses if [ "$(ip addr show ${1} 2>/dev/null | grep 'inet ')" != "" ]; then echo "Removing default gateway..." ip route del default #evaluate_retval fi fi ;; *) echo "Usage: ${0} [interface] {up|down}" exit 1 ;; esac # End /lib/services/ipv4-static