D.25. /etc/sysconfig/network-devices/ifup


#!/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} 



# Collect a list of configuration files for our interface

if [ -n "${2}" ]; then

    for file in ${@#$1} # All parameters except $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



boot_mesg "Bringing up the ${1} interface..."

boot_mesg_flush



# Process each configruation file

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" -a "${HOSTNAME}" != "(none)" ]; then

             continue

        fi



        if [ -n "${SERVICE}" -a -x "${network_devices}/services/${SERVICE}" ]; then

            if [ -z "${CHECK_LINK}" -o "${CHECK_LINK}" = "y" -o "${CHECK_LINK}" = "yes" -o "${CHECK_LINK}" = "1" ]; then

                if ip link show ${1} > /dev/null 2>&1; then

                    link_status=`ip link show ${1}`

                    if [ -n "${link_status}" ]; then

                        if ! echo "${link_status}" | grep -q UP; then

                            ip link set ${1} up

                        fi

                    fi

                else

                    boot_mesg "Interface ${1} doesn't exist." ${WARNING}

                    echo_warning

                    continue

                fi

            fi

            IFCONFIG=${file} ${network_devices}/services/${SERVICE} ${1} up

        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


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