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D.26. /lib/services/ipv4-static
#!/bin/sh
########################################################################
# Begin /lib/services/ipv4-static
#
# Description : IPV4 Static Boot Script
#
# Authors : Nathan Coulson - [email protected]
# Kevin P. Fleming - [email protected]
# Update : Bruce Dubbs - [email protected]
#
# Version : LFS 7.0
#
########################################################################
. /lib/lsb/init-functions
. ${IFCONFIG}
if [ -z "${IP}" ]; then
log_failure_msg "\nIP variable missing from ${IFCONFIG}, cannot continue." exit 1
fi
if [ -z "${PREFIX}" -a -z "${PEER}" ]; then
log_warning_msg "\nPREFIX variable missing from ${IFCONFIG}, assuming 24."
PREFIX=24
args="${args} ${IP}/${PREFIX}"
elif [ -n "${PREFIX}" -a -n "${PEER}" ]; then
log_failure_msg "\nPREFIX 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 ${PEER}"
fi
if [ -n "${LABEL}" ]; then args="${args} label ${LABEL}"
fi
if [ -n "${BROADCAST}" ]; then args="${args} broadcast ${BROADCAST}"
fi
case "${2}" in up)
if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" = "" ]; then log_info_msg "Adding IPv4 address ${IP} to the ${1} interface..." ip addr add ${args} dev ${1}
evaluate_retval else
log_warning_msg "Cannot add IPv4 address ${IP} to ${1}. Already present."
fi
;;
down)
if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" != "" ]; then log_info_msg "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
log_info_msg "Removing default gateway..." ip route del default
evaluate_retval
fi
fi
;;
*)
echo "Usage: ${0} [interface] {up|down}" exit 1
;;
esac
# End /lib/services/ipv4-static
if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" = "" ]; then log_info_msg "Adding IPv4 address ${IP} to the ${1} interface..." ip addr add ${args} dev ${1}
evaluate_retval else
log_warning_msg "Cannot add IPv4 address ${IP} to ${1}. Already present."
fi
;;
down)
if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" != "" ]; then log_info_msg "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
log_info_msg "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
: Kevin P. Fleming - [email protected] DJ Lucas - [email protected]
: Bruce Dubbs - [email protected]
: Kevin P. Fleming - [email protected] DJ Lucas - [email protected]
: Bruce Dubbs - [email protected]
: LFS 7.0
: LFS 7.0