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