#! /bin/bash

#

# network       Bring up/down networking

#

# chkconfig: - 10 90

# description: Activates/Deactivates all network interfaces configured to \

#              start at boot time.

#

### BEGIN INIT INFO

# Provides: $network

# Should-Start: iptables ip6tables NetworkManager-wait-online NetworkManager $network-pre

# Short-Description: Bring up/down networking

# Description: Bring up/down networking

### END INIT INFO

# Source function library.

. /etc/init.d/functions

if [ ! -f /etc/sysconfig/network ]; then

    exit 6

fi

. /etc/sysconfig/network

if [ -f /etc/sysconfig/pcmcia ]; then

    . /etc/sysconfig/pcmcia

fi

# Check that networking is up.

[ "${NETWORKING}" = "no" ] && exit 6

# if the ip configuration utility isn't around we can't function.

[ -x /sbin/ip ] || exit 1

CWD=$(pwd)

cd /etc/sysconfig/network-scripts

. ./network-functions

# find all the interfaces besides loopback.

# ignore aliases, alternative configurations, and editor backup files

interfaces=$(ls ifcfg-* | \

        LC_ALL=C sed -e "$__sed_discard_ignored_files" \

               -e '/\(ifcfg-lo$\|:\|ifcfg-.*-range\)/d' \

               -e '{ s/^ifcfg-//g;s/[0-9]/ &/}' | \

        LC_ALL=C sort -k 1,1 -k 2n | \

        LC_ALL=C sed 's/ //')

rc=0

if ! [ -f /etc/sysconfig/disable-deprecation-warnings ]; then

    net_log $"You are using 'network' service provided by 'network-scripts', which are now deprecated." warning network >&2

    net_log $"'network-scripts' will be removed in one of the next major releases of RHEL." warning network >&2

    net_log $"It is advised to switch to 'NetworkManager' instead for network management." warning network >&2

    # This disables additional warnings during the boot process:

    export DEPRECATION_WARNING_ISSUED='true'

fi

# See how we were called.

case "$1" in

start)

    [ "$EUID" != "0" ] && exit 4

    rc=0

    # IPv6 hook (pre IPv4 start)

    if [ -x /etc/sysconfig/network-scripts/init.ipv6-global ]; then

        /etc/sysconfig/network-scripts/init.ipv6-global start pre

    fi

    apply_sysctl

    #tell NM to reload its configuration

    if [ "$(LANG=C nmcli -t --fields running general status 2>/dev/null)" = "running" ]; then

        nmcli connection reload

    fi

    # bring up loopback interface

    action $"Bringing up loopback interface: " ./ifup ifcfg-lo

    case "$VLAN" in

    yes)

        if [ ! -d /proc/net/vlan ] && ! modprobe 8021q >/dev/null 2>&1 ; then

            net_log $"No 802.1Q VLAN support available in kernel."

        fi

        ;;

    esac

    vlaninterfaces=""

    vpninterfaces=""

    xdslinterfaces=""

    bridgeinterfaces=""

    # bring up all other interfaces configured to come up at boot time

    for i in $interfaces; do

        unset DEVICE TYPE SLAVE NM_CONTROLLED

        eval $(LANG=C grep -F "DEVICE=" ifcfg-$i)

        eval $(LANG=C grep -F "TYPE=" ifcfg-$i)

        eval $(LANG=C grep -F "SLAVE=" ifcfg-$i)

        eval $(LANG=C grep -F "NM_CONTROLLED=" ifcfg-$i)

        if [ -z "$DEVICE" ] ; then DEVICE="$i"; fi

        if [ "$SLAVE" = "yes" ] && ( ! is_nm_running || is_false $NM_CONTROLLED ) ; then

            continue

        fi

        if [ "${DEVICE##cipcb}" != "$DEVICE" ] ; then

            vpninterfaces="$vpninterfaces $i"

            continue

        fi

        if [ "$TYPE" = "xDSL"  -o  "$TYPE" = "Modem" ]; then

            xdslinterfaces="$xdslinterfaces $i"

            continue

        fi

        if [ "$TYPE" = "Bridge" ]; then

            bridgeinterfaces="$bridgeinterfaces $i"

            continue

        fi

        if [ "$TYPE" = "IPSEC" ] || [ "$TYPE" = "IPIP" ] || [ "$TYPE" = "GRE" ]; then

            vpninterfaces="$vpninterfaces $i"

            continue

        fi

        if [ "${DEVICE%%.*}" != "$DEVICE"  -o  "${DEVICE##vlan}" != "$DEVICE" ] ; then

            vlaninterfaces="$vlaninterfaces $i"

            continue

        fi

        if ( . ./ifcfg-"$i" ; is_false "$ONBOOT" ) ; then

            # this loads the module, to preserve ordering

            is_available $i

            continue

        fi

        action $"Bringing up interface $i: " ./ifup $i boot

        [ $? -ne 0 ] && rc=1

    done

    # Bring up xDSL and VPN interfaces

    for i in $vlaninterfaces $bridgeinterfaces $xdslinterfaces $vpninterfaces ; do

        if ( . ./ifcfg-"$i" ; ! is_false "$ONBOOT" ) ; then

            action $"Bringing up interface $i: " ./ifup $i boot

            [ $? -ne 0 ] && rc=1

        fi

    done

    # Add non interface-specific static-routes.

    if [ -f /etc/sysconfig/static-routes ]; then

        if [ -x /sbin/route ]; then

            grep "^any" /etc/sysconfig/static-routes | while read ignore args ; do

                /sbin/route add -$args

            done

        else

            net_log $"Legacy static-route support not available: /sbin/route not found"

        fi

    fi

    # IPv6 hook (post IPv4 start)

    if [ -x /etc/sysconfig/network-scripts/init.ipv6-global ]; then

        /etc/sysconfig/network-scripts/init.ipv6-global start post

    fi

    # Run this again to catch any interface-specific actions

    apply_sysctl

    touch /var/lock/subsys/network

    [ -n "${NETWORKDELAY}" ] && /bin/sleep ${NETWORKDELAY}

    ;;

stop)

    [ "$EUID" != "0" ] && exit 4

    # Don't shut the network down if root or /usr is on NFS or a network

    # block device.

    if systemctl show --property=RequiredBy -- -.mount usr.mount | grep -q 'remote-fs.target' ; then

        net_log $"rootfs or /usr is on network filesystem, leaving network up"

        exit 1

    fi

    # Don't shut the network down when shutting down the system if configured

    # as such in sysconfig

    if is_false "$IFDOWN_ON_SHUTDOWN"; then

      if systemctl is-system-running | grep -q 'stopping'; then

        net_log $"system is shutting down, leaving interfaces up as requested" info

        exit 0

      fi

    fi

    vlaninterfaces=""

    vpninterfaces=""

    xdslinterfaces=""

    bridgeinterfaces=""

    remaining=""

    rc=0

    # get list of bonding, vpn, and xdsl interfaces

    for i in $interfaces; do

        unset DEVICE TYPE

        eval $(LANG=C grep -F "DEVICE=" ifcfg-$i)

        eval $(LANG=C grep -F "TYPE=" ifcfg-$i)

        if [ -z "$DEVICE" ] ; then DEVICE="$i"; fi

        if [ "${DEVICE##cipcb}" != "$DEVICE" ] ; then

            vpninterfaces="$vpninterfaces $i"

            continue

        fi

        if [ "$TYPE" = "IPSEC" ] || [ "$TYPE" = "IPIP" ] || [ "$TYPE" = "GRE" ]; then

            vpninterfaces="$vpninterfaces $i"

            continue

        fi

        if [ "$TYPE" = "Bridge" ]; then

            bridgeinterfaces="$bridgeinterfaces $i"

            continue

        fi

        if [ "$TYPE" = "xDSL"  -o  "$TYPE" = "Modem" ]; then

            xdslinterfaces="$xdslinterfaces $i"

            continue

        fi

        if [ "${DEVICE%%.*}" != "$DEVICE"  -o  "${DEVICE##vlan}" != "$DEVICE" ] ; then

            vlaninterfaces="$vlaninterfaces $i"

            continue

        fi

        remaining="$remaining $i"

    done

    for i in $vpninterfaces $xdslinterfaces $bridgeinterfaces $vlaninterfaces $remaining; do

        unset DEVICE TYPE

        (. ./ifcfg-$i

        if [ -z "$DEVICE" ] ; then DEVICE="$i"; fi

        if ! check_device_down $DEVICE; then

            action $"Shutting down interface $i: " ./ifdown $i boot

            [ $? -ne 0 ] && rc=1

        fi

        )

    done

    action $"Shutting down loopback interface: " ./ifdown ifcfg-lo

    sysctl -w net.ipv4.ip_forward=0 > /dev/null 2>&1

    # IPv6 hook (post IPv4 stop)

    if [ -x /etc/sysconfig/network-scripts/init.ipv6-global ]; then

        /etc/sysconfig/network-scripts/init.ipv6-global stop post

    fi

    rm -f /var/lock/subsys/network

    ;;

status)

    echo $"Configured devices:"

    echo lo $interfaces

    echo $"Currently active devices:"

    echo $(/sbin/ip -o link show up | awk -F ": " '{ print $2 }')

    ;;

restart|force-reload)

    cd "$CWD"

    $0 stop

    $0 start

    rc=$?

    ;;

*)

    echo $"Usage: $0 {start|stop|status|restart|force-reload}"

    exit 2

esac

exit $rc