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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 :
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