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-rw-r--r--net.Linux/arping.sh111
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diff --git a/net.Linux/arping.sh b/net.Linux/arping.sh
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+# Copyright 2004-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+arping_depend() {
+ program /sbin/arping
+ before interface
+}
+
+arping_address() {
+ local ip=${1%%/*} mac="$2" foundmac= i= w= opts=
+
+ # We only handle IPv4 addresses
+ case "${ip}" in
+ 0.0.0.0|0) return 1 ;;
+ *.*.*.*) ;;
+ *) return 1 ;;
+ esac
+
+ # We need to bring the interface up to test
+ _exists "${iface}" || return 1
+ _up "${iface}"
+
+ eval w=\$arping_wait_${IFVAR}
+ [ -z "${w}" ] && w=${arping_wait:-5}
+
+ [ -z "$(_get_inet_address)" ] && opts="${opts} -D"
+
+ foundmac="$(arping -w "${w}" ${opts} -f -I "${IFACE}" "${ip}" 2>/dev/null | \
+ sed -n -e 'y/abcdef/ABCDEF/' -e 's/.*\[\([^]]*\)\].*/\1/p')"
+ [ -z "${foundmac}" ] && return 1
+
+ if [ -n "${mac}" ] ; then
+ if [ "${mac}" != "${foundmac}" ] ; then
+ vewarn "Found ${ip} but MAC ${foundmac} does not match"
+ return 1
+ fi
+ fi
+
+ return 0
+}
+
+arping_start() {
+ local gateways= x= conf= i=
+ einfo "Pinging gateways on ${IFACE} for configuration"
+
+ eval $(_get_array "gateways_${IFVAR}")
+ if [ -z "$@" ] ; then
+ eerror "No gateways have been defined (gateways_${IFVAR}=\"...\")"
+ return 1
+ fi
+
+ eindent
+
+ for x in "$@"; do
+ eval set -- "${x}"
+ local ip=$1 mac=$2 extra=
+
+ if [ -n "${mac}" ] ; then
+ mac="$(echo "${mac}" | tr '[:lower:]' '[:upper:]')"
+ extra="(MAC ${mac})"
+ fi
+
+ vebegin "${ip} ${extra}"
+ if arping_address "${ip}" "${mac}" ; then
+ local OIFS=$IFS SIFS=${IFS-y}
+ IFS=.
+ for i in ${ip} ; do
+ if [ "${#i}" = "2" ] ; then
+ conf="${conf}0${i}"
+ elif [ "${#i}" = "1" ] ; then
+ conf="${conf}00${i}"
+ else
+ conf="${conf}${i}"
+ fi
+ done
+ if [ "${SIFS}" = "y" ] ; then
+ IFS=$OFIS
+ else
+ unset IFS
+ fi
+ [ -n "${mac}" ] && conf="${conf}_$(echo "${mac}" | sed -e 's/://g')"
+
+ veend 0
+ eoutdent
+ veinfo "Configuring ${IFACE} for ${ip} ${extra}"
+ _configure_variables "${conf}"
+
+ # Call the system module as we've aleady passed it by ....
+ # And it *has* to be pre_start for other things to work correctly
+ system_pre_start
+
+ # Ensure that we have a valid config - ie arping is no longer there
+ eval $(_get_array "config_${IFVAR}")
+ for i in "$@" ; do
+ if [ "${i}" = "arping" ] ; then
+ veend 1 "No config found for ${ip} (config_${conf}=\"...\")"
+ continue 2
+ fi
+ done
+
+ _load_config
+ return 0
+ fi
+ veend 1
+ done
+
+ eoutdent
+ return 1
+}
+
+# vim: set ts=4 :