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path: root/etc/pccard_ether
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#!/bin/sh -
#
# $FreeBSD$
#
# pccard_ether interfacename [start|stop] [ifconfig option]
#
# example: pccard_ether fxp0 start link0
#

. /etc/network.subr

stop_dhcp() {
	# If dhclient is already running, record
	# its interfaces.
	if [ -x /usr/bin/grep ]; then
		eval _active_list=\"`/bin/ps -axwww | \
			/usr/bin/grep dhclient | \
			/usr/bin/grep -v grep | \
			/usr/bin/sed -e 's|^.*dhclient||' | \
			/usr/bin/awk '{for (i=1;i<=NF;i++) \
				{ if ($i~/[a-zA-Z].[0-9]$/) \
				{ printf(" %s",$i) } }}'` \
			\"
	fi

	# Get the rc.conf list of dhcp configured interfaces
	static_dhcp_list="`list_net_interfaces dhcp`"

	# Get the current ifconfig list of interfaces
	_aprefix=
	_nlist=
	for _if in ${_active_list} ; do
		_test_if=`ifconfig ${_if} 2>&1`
		case "$_test_if" in
		"ifconfig: interface $_if does not exist")
			;;
		${interface})
			# Don't record the same device twice.
			;;
		*)
			#
			# Catch devices which were specified before,
			# but have not been part of the rc. We need
			# them again for the restart.
			#
			for _cif in ${static_dhcp_list} ; do
				case "$_cif" in
				${_if})
					# Nothing to add
					;;
				*)
					# Found interface beside rc.conf
					_nlist="${_nlist}${_aprefix}${_if}"
					;;
				esac
			done
			_dhcplist="${_dhcplist}${_aprefix}${_if}"
			[ -z "$_aprefix" ] && _aprefix=' '
			;;
		esac
	done

	if [ -s /var/run/dhclient.pid ]; then
		pidfile="/var/run/dhclient.pid"
	else
		return
	fi
	/sbin/dhclient -r ${interface}
	rm -f ${pidfile}
	case ${startstop} in
	[Ss][Tt][Oo][Pp])
		if [ -z "${_nlist}" ]; then
			sh `/etc/rc.d/dhclient start`
		else
			start_dhcp_keep_current
		fi
		;;
	*)
		;;
	esac
}

start_dhcp() {
	stop_dhcp
	case ${pccard_ether_delay} in
	[Nn][Oo])
		;;
	[0-9]*)
		sleep ${pccard_ether_delay}
		;;
        esac
	[ -n "$dhcp_program" ] && dhclient_program="$dhcp_program"
	[ -n "$dhcp_flags" ] && dhclient_flags="$dhcp_flags"
	if [ -x "${dhclient_program}" ]; then
		interfaces=`echo $_dhcplist ${interface} | xargs -n 1 echo | sort -u `
		${dhclient_program} ${dhclient_flags}  ${interfaces}
	else
		echo "${dhclient_program}: DHCP client software not available"
	fi
}

# Called after detaching a card, if dhclient has been
# used for more than one interface.
start_dhcp_keep_current() {
	[ -n "$dhcp_program" ] && dhclient_program="$dhcp_program"
	[ -n "$dhcp_flags" ] && dhclient_flags="$dhcp_flags"
	if [ -x "${dhclient_program}" ]; then
		${dhclient_program} ${dhclient_flags} \
			${_dhcplist}
	else
		echo "${dhclient_program}: DHCP client software not available"
	fi
}

# Suck in the configuration variables
#
if [ -r /etc/defaults/rc.conf ]; then
	. /etc/defaults/rc.conf
	source_rc_confs
elif [ -r /etc/rc.conf ]; then
	. /etc/rc.conf
fi

interface=$1
shift
startstop=$1
shift

case ${pccard_ifconfig} in
[Nn][Oo] | '')
	expr "${removable_interfaces}" : ".*${interface}" > /dev/null || exit 0
	;;
*)
	# Backward compatible
	eval ifconfig_${interface}=\${pccard_ifconfig}
	;;
esac

case ${startstop} in
[Ss][Tt][Aa][Rr][Tt] | '')
	if [ -x /usr/bin/grep ]; then
		if ifconfig ${interface} | grep -s netmask > /dev/null 2>&1; then
		    # Interface is already up, so ignore it.
		    exit 0
		fi
	fi

	if [ -r /etc/start_if.${interface} ]; then
		. /etc/start_if.${interface}
	fi

	eval ifconfig_args=\$ifconfig_${interface}
	case ${ifconfig_args} in
	[Nn][Oo] | '')
		;;
	[Dd][Hh][Cc][Pp])
		# Start up the DHCP client program
		start_dhcp
		;;
	*)
		# Do the primary ifconfig if specified
		ifconfig ${interface} ${ifconfig_args} $*

		# Check to see if aliases need to be added
		alias=0
		while :
		do
			eval ifx_args=\$ifconfig_${interface}_alias${alias}
			if [ -n "${ifx_args}" ]; then
				ifconfig ${interface} ${ifx_args} alias
				alias=`expr ${alias} + 1`
			else
				break;
			fi
		done

		# Do ipx address if specified
		eval ifx_args=\$ifconfig_${interface}_ipx
		if [ -n "${ifx_args}" ]; then
			ifconfig ${interface} ${ifx_args}
		fi

		# Add default route into $static_routes
		case ${defaultrouter} in
		[Nn][Oo] | '')
		        ;;
		*)
			static_routes="default ${static_routes}"
			route_default="default ${defaultrouter}"
			;;
		esac

		# Add private route for this interface into $static_routes
		eval ifx_routes=\$static_routes_${interface}
		if [ -n "${ifx_routes}" ]; then
			static_routes="${ifx_routes} ${static_routes}"
		fi

		# Set up any static routes if specified
		if [ -n "${static_routes}" ]; then
			for i in ${static_routes}; do
				eval route_args=\$route_${i}
				route add ${route_args}
			done
		fi
		;;
	esac

	# IPv6 setup
	case ${ipv6_enable} in
	[Yy][Ee][Ss])
		if [ -r /etc/network.subr ]; then
			. /etc/network.subr
			network6_interface_setup ${interface}
		fi
		;;
	esac
	;;
# Stop the interface
*)
	if [ -r /etc/stop_if.${interface} ]; then
		. /etc/stop_if.${interface}
	fi

	eval ifconfig_args=\$ifconfig_${interface}
	case ${ifconfig_args} in
	[Nn][Oo] | '')
	        ;;
	[Dd][Hh][Cc][Pp])
		# Stop the DHCP client for this interface
		stop_dhcp
		;;
	*)
		# Delete static route if specified
		eval ifx_routes=\$static_routes_${interface}
		if [ -n "${ifx_routes}" ]; then
			for i in ${ifx_routes}; do
				eval route_args=\$route_${i}
				route delete ${route_args}
			done
		fi

		# Delete aliases if exist
		alias=0
		while :
		do
			eval ifx_args=\$ifconfig_${interface}_alias${alias}
			if [ -n "${ifx_args}" ]; then
				ifconfig ${interface} ${ifx_args} alias delete
				alias=`expr ${alias} + 1`
			else
				break;
			fi
		done
		;;
	esac

	# Remove the network interface and cleaning ARP table
	ifconfig ${interface} delete
	arp -d -a

	# Clean the routing table
	case ${removable_route_flush} in
	[Nn][Oo])
	        ;;
	*)	
		# flush beforehand, just in case....
		route -n flush -inet
		;;
	esac
	;;
esac
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