#!/bin/sh
########################################################################
# Begin $network_devices/ifup
#
# Description : Interface Up
#
# Authors     : Nathan Coulson - nathan@linuxfromscratch.org
#               Kevin P. Fleming - kpfleming@linuxfromscratch.org
#
# Version     : 00.00
#
# Notes       : the IFCONFIG variable is passed to the scripts found
#               in the services directory, to indicate what file the
#               service should source to get environmental variables.
#
########################################################################

. /etc/sysconfig/rc 
. ${rc_functions} 

bring_link_up()
{
	link_status=`ip link show ${1} 2> /dev/null`
	if [ -n "${link_status}" ]
	then
		if ! echo "${link_status}" | grep -q UP
		then
			boot_mesg "Bringing up the ${1} interface..."
			ip link set ${1} up
			evaluate_retval
		fi
	fi
}

if [ -n "${2}" ]
then
	for file in ${@#$1}
	do
		FILES="${FILES} ${network_devices}/ifconfig.${1}/${file}"
	done
elif [ -d "${network_devices}/ifconfig.${1}" ]
then
	FILES=`echo ${network_devices}/ifconfig.${1}/*`
else
	FILES="${network_devices}/ifconfig.${1}"
fi

for file in ${FILES}
do
	# skip backup files
	if [ "${file}" != "${file%""~""}" ]
	then
		continue
	fi
	if [ ! -f "${file}" ]
	then
		boot_mesg "${file} is not a network configuration file or directory." ${WARNING}
		echo_warning
		continue
	fi
	(
		. ${file}
		# Will not process this service if started by boot, and ONBOOT
		# is not set to yes
		if [ "${IN_BOOT}" = "1" -a "${ONBOOT}" != "yes" ]
		then
			continue
		fi
		# Will not process this service if started by hotplug, and 
		# ONHOTPLUG is not set to yes
		if [ "${IN_HOTPLUG}" = "1" -a "${ONHOTPLUG}" != "yes" ]
		then
			 continue
		fi

		if [ -n "${SERVICE}" -a -x "${network_devices}/services/${SERVICE}" ]
		then
			if [ -z "${LINK}" ]
			then
				LINK=${1}
			fi
			if ip link show ${LINK} > /dev/null 2>&1
			then
				bring_link_up ${LINK}
				IFCONFIG=${file} ${network_devices}/services/${SERVICE} ${1} up
			else
				boot_mesg "Interface ${1} doesn't exist." ${WARNING}
				echo_warning
			fi
		else
			boot_mesg "Unable to process ${file}.  Either" ${FAILURE}
			boot_mesg " the SERVICE variable was not set,"
			boot_mesg " or the specified service cannot be executed."
			echo_failure
			continue
		fi
	)
done

# End $network_devices/ifup