freebsd-dev/etc/rc.d/defaultroute

#!/bin/sh
#
# Wait for the default route to be up
#
# $FreeBSD$
#

# PROVIDE: defaultroute
# REQUIRE: devd netif network_ipv6
# KEYWORD: nojail

. /etc/rc.subr
. /etc/network.subr

name="defaultroute"
start_cmd="defaultroute_start"
stop_cmd=":"

defaultroute_start()
{
	local output carrier nocarrier

	# Return without waiting if we don't have dhcp interfaces or
	# if none of the dhcp interfaces is plugged in.
	dhcp_interfaces=`list_net_interfaces dhcp`
	[ -z "${dhcp_interfaces}" ] && return
	carrier=false
	for _if in ${dhcp_interfaces}; do
		output=`/sbin/ifconfig ${_if}` 
		nocarrier=`expr "${output}" : '.*[[:blank:]]status: \(no carrier\)'`
		[ -z "${nocarrier}" ] && carrier=true
	done
	if ! ${carrier}; then
		return
	fi

	# Wait for a default route
	delay=${defaultroute_delay}
	while [ ${delay} -gt 0 ]; do
		defif=`get_default_if -inet`
		if [ -n "${defif}" ]; then
			if [ ${delay} -ne ${defaultroute_delay} ]; then
				echo -n "($defif)"
			fi
			break
		fi
		if [ ${delay} -eq ${defaultroute_delay} ]; then
			echo -n "Waiting ${delay}s for the default route interface: "
		else
			echo -n .
		fi
		sleep 1
		delay=`expr $delay - 1`
	done

	echo
}

load_rc_config $name
run_rc_command "$1"