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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