Subversion Repositories configs

#!/bin/bash

# Network Interface Configuration System

# Copyright (c) 1996-2010 Red Hat, Inc. all rights reserved.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License, version 2,

# as published by the Free Software Foundation.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

. /etc/init.d/functions

cd /etc/sysconfig/network-scripts

. ./network-functions

[ -f ../network ] && . ../network

CONFIG=${1}

need_config "${CONFIG}"

source_config

# Old BOOTP variable

if [ "${BOOTP}" = "yes" ]; then

    BOOTPROTO=bootp

fi

if [ "${BOOTPROTO}" = "bootp" -o "${BOOTPROTO}" = "dhcp" ]; then

    DYNCONFIG=true

fi

# load the module associated with that device

# /sbin/modprobe ${REALDEVICE}

is_available ${REALDEVICE}

# bail out, if the MAC does not fit

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

    FOUNDMACADDR=$(get_hwaddr ${REALDEVICE})

    if [ "${FOUNDMACADDR}" != "${HWADDR}" -a "${FOUNDMACADDR}" != "${MACADDR}" ]; then

	    net_log $"Device ${DEVICE} has different MAC address than expected, ignoring."

	    exit 1

    fi

fi

# If the device is a bridge, create it with brctl, if available.

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

      if [ ! -x /usr/sbin/brctl ]; then

	  net_log $"Bridge support not available: brctl not found"

	  exit 1

      fi

      if [ ! -d /sys/class/net/${DEVICE}/bridge ]; then

		/usr/sbin/brctl addbr ${DEVICE} || exit 1

      fi

      [ -n "${DELAY}" ] && /usr/sbin/brctl setfd ${DEVICE} ${DELAY}

      [ -n "${STP}" ] && /usr/sbin/brctl stp ${DEVICE} ${STP}

      # add the bits to setup driver parameters here

      for arg in $BRIDGING_OPTS ; do

          key=${arg%%=*};

          value=${arg##*=};

          echo $value > /sys/class/net/${DEVICE}/bridge/$key

      done

fi

# If the device is a tap device, create it with tunctl, if available.

if [ "${TYPE}" = "Tap" ]; then

      if [ ! -x /usr/sbin/tunctl ]; then

          net_log  $"Tap support not available: tunctl not found"

          exit 1

      fi

      [ -n "${OWNER}" ] && OWNER="-u ${OWNER}"

      /usr/sbin/tunctl ${OWNER} -t ${DEVICE} > /dev/null

fi

# now check the real state

is_available ${REALDEVICE} || {

      if [ -n "$alias" ]; then

         net_log $"$alias device ${DEVICE} does not seem to be present, delaying initialization."

      else

         net_log $"Device ${DEVICE} does not seem to be present, delaying initialization."

      fi

      exit 1

}

# this isn't the same as the MAC in the configuration filename.  It is

# available as a configuration option in the config file, forcing the kernel

# to think an ethernet card has a different MAC address than it really has.

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

   ip link set dev ${DEVICE} address ${MACADDR}

fi

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

   ip link set dev ${DEVICE} mtu ${MTU}

fi

# is the device wireless? If so, configure wireless device specifics

is_wireless_device ${DEVICE} && . ./ifup-wireless

# slave device?

if [ "${SLAVE}" = yes -a "${ISALIAS}" = no -a "${MASTER}" != "" ]; then

    install_bonding_driver ${MASTER}

    grep -wq "${DEVICE}" /sys/class/net/${MASTER}/bonding/slaves 2>/dev/null || {

	/sbin/ip link set dev ${DEVICE} down

	echo "+${DEVICE}" > /sys/class/net/${MASTER}/bonding/slaves 2>/dev/null

    }

    ethtool_set

    exit 0

fi

# Bonding initialization. For DHCP, we need to enslave the devices early,

# so it can actually get an IP.

if [ "$ISALIAS" = no ] && is_bonding_device ${DEVICE} ; then

    install_bonding_driver ${DEVICE}

    /sbin/ip link set dev ${DEVICE} up

    for device in $(LANG=C grep -l "^[[:space:]]*MASTER=\"\?${DEVICE}\"\?\([[:space:]#]\|$\)" /etc/sysconfig/network-scripts/ifcfg-*) ; do

	    is_ignored_file "$device" && continue

	    /sbin/ifup ${device##*/}

    done

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

    # add the bits to setup the needed post enslavement parameters

    for arg in $BONDING_OPTS ; do

        key=${arg%%=*};

        value=${arg##*=};

	if [ "${key}" = "primary" ]; then

            echo $value > /sys/class/net/${DEVICE}/bonding/$key

	fi

    done

fi

# If the device is part of a bridge, add the device to the bridge

if [ -n "${BRIDGE}" -a -x /usr/sbin/brctl ]; then

      if [ ! -d /sys/class/net/${BRIDGE}/bridge ]; then

	  /usr/sbin/brctl addbr ${BRIDGE} 2>/dev/null

      fi

      /sbin/ip addr flush dev ${DEVICE} 2>/dev/null

      /sbin/ip link set dev ${DEVICE} up

      ethtool_set

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

      /usr/sbin/brctl addif ${BRIDGE} ${DEVICE}

      # add the bits to setup driver parameters here

      for arg in $BRIDGING_OPTS ; do

          key=${arg%%=*};

          value=${arg##*=};

          echo $value > /sys/class/net/${DEVICE}/brport/$key

      done

      # Upon adding a device to a bridge,

      # it's necessary to make radvd reload its config

      [ -r /var/run/radvd/radvd.pid ] && kill -HUP $(cat /var/run/radvd/radvd.pid)

      exit 0

fi

if [ -n "${DYNCONFIG}" -a -x /sbin/dhclient ]; then

    if [[ "${PERSISTENT_DHCLIENT}" =  [yY1]* ]]; then

       ONESHOT="";

    else

       ONESHOT="-1";

    fi;

    generate_config_file_name

    # copy any lease obtained by the initrd

    for file in /dev/.dhclient-${DEVICE}.leases /dev/.initramfs/net.${DEVICE}.lease ; do

        if [ -f "${file}" ]; then

            mv -f $file /var/lib/dhclient/dhclient-${DEVICE}.leases

            [ -x /sbin/restorecon ] && restorecon /var/lib/dhclient/dhclient-${DEVICE}.leases > /dev/null 2>&1

        fi

    done

    DHCLIENTARGS="${DHCLIENTARGS} ${DHCP_HOSTNAME:+-H $DHCP_HOSTNAME} ${ONESHOT} -q ${DHCLIENTCONF} -lf /var/lib/dhclient/dhclient-${DEVICE}.leases -pf /var/run/dhclient-${DEVICE}.pid"

    echo

    echo -n $"Determining IP information for ${DEVICE}..."

    if [[ "${PERSISTENT_DHCLIENT}" !=  [yY1]* ]] && check_link_down ${DEVICE}; then

	echo $" failed; no link present.  Check cable?"

	exit 1

    fi

    ethtool_set

    if /sbin/dhclient ${DHCLIENTARGS} ${DEVICE} ; then

		echo $" done."

		dhcpipv4="good"

    else

		echo $" failed."

		if [[ "${IPV4_FAILURE_FATAL}"  = [Yy1]* ]] ; then

			exit 1

		fi

		if [[ "$IPV6INIT" != [yY1]* && "$DHCPV6C" != [yY1]* ]] ; then

			exit 1

		fi

		net_log "Unable to obtain IPv4 DHCP address ${DEVICE}." warning

    fi

# end dynamic device configuration

else

    if [ -z "${IPADDR}" -a -z "${IPADDR0}" -a -z "${IPADDR1}" -a -z "${IPADDR2}" ]; then

         # enable device without IP, useful for e.g. PPPoE

	 ip link set dev ${REALDEVICE} up

	 ethtool_set

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

    else

    expand_config

    [ -n "${ARP}" ] && \

	ip link set dev ${REALDEVICE} $(toggle_value arp $ARP)

    if ! ip link set dev ${REALDEVICE} up ; then

	net_log $"Failed to bring up ${DEVICE}."

	exit 1

    fi

    ethtool_set

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

    if [ "${DEVICE}" = "lo" ]; then

    	SCOPE="scope host"

    else

        SCOPE=${SCOPE:-}

    fi

    if [ -n "$SRCADDR" ]; then

       SRC="src $SRCADDR"

    else

       SRC=

    fi

    # set IP address(es)

    for idx in {0..256} ; do

	if [ -z "${ipaddr[$idx]}" ]; then

            break

        fi

        if ! LC_ALL=C ip addr ls ${REALDEVICE} | LC_ALL=C grep -q "${ipaddr[$idx]}/${prefix[$idx]}" ; then

            if [ "${REALDEVICE}" != "lo" ] && [ "${arpcheck[$idx]}" != "no" ] ; then

				echo $"Determining if ip address ${ipaddr[$idx]} is already in use for device ${REALDEVICE}..."

				if ! /sbin/arping -q -c 2 -w 3 -D -I ${REALDEVICE} ${ipaddr[$idx]} ; then

					net_log $"Error, some other host already uses address ${ipaddr[$idx]}."

					exit 1

				fi

			fi

            if ! ip addr add ${ipaddr[$idx]}/${prefix[$idx]} \

              brd ${broadcast[$idx]:-+} dev ${REALDEVICE} ${SCOPE} label ${DEVICE}; then

                net_log $"Error adding address ${ipaddr[$idx]} for ${DEVICE}."

            fi

        fi

        if [ -n "$SRCADDR" ]; then

               sysctl -w "net.ipv4.conf.${SYSCTLDEVICE}.arp_filter=1" >/dev/null 2>&1

        fi

        # update ARP cache of neighboring computers

        if [ "${REALDEVICE}" != "lo" ]; then

          /sbin/arping -q -A -c 1 -I ${REALDEVICE} ${ipaddr[$idx]}

          ( sleep 2;

            /sbin/arping -q -U -c 1 -I ${REALDEVICE} ${ipaddr[$idx]} ) > /dev/null 2>&1 < /dev/null &

        fi

    done

    # Set a default route.

    if [ "${DEFROUTE}" != "no" ] && [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${REALDEVICE}" ]; then

	# set up default gateway. replace if one already exists

	if [ -n "${GATEWAY}" ] && [ "$(ipcalc --network ${GATEWAY} ${netmask[0]} 2>/dev/null)" = "NETWORK=${NETWORK}" ]; then

	    ip route replace default ${METRIC:+metric $METRIC} \

		via ${GATEWAY} ${WINDOW:+window $WINDOW} ${SRC} \

		${GATEWAYDEV:+dev $GATEWAYDEV} ||

			net_log $"Error adding default gateway ${GATEWAY} for ${DEVICE}."

	elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then

	    ip route replace default ${METRIC:+metric $METRIC} \

		${SRC} ${WINDOW:+window $WINDOW} dev ${REALDEVICE} ||

			net_log $"Erorr adding default gateway for ${REALDEVICE}."

	fi

    fi

    fi

fi

# Add Zeroconf route.

if [ -z "${NOZEROCONF}" -a "${ISALIAS}" = "no" -a "${REALDEVICE}" != "lo" ]; then

    ip route add 169.254.0.0/16 dev ${REALDEVICE} metric $((1000 + $(cat /sys/class/net/${REALDEVICE}/ifindex))) scope link

fi

# IPv6 initialisation?

/etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG}

if [[ "${DHCPV6C}"  = [Yy1]* ]] && [ -x /sbin/dhclient ]; then

    generate_config_file_name 6

    echo

    echo -n $"Determining IPv6 information for ${DEVICE}..."

    if /sbin/dhclient -6 -1 ${DHCPV6C_OPTIONS} ${DHCLIENTCONF} -lf /var/lib/dhclient/dhclient6-${DEVICE}.leases -pf /var/run/dhclient6-${DEVICE}.pid ${DHCP_HOSTNAME:+-H $DHCP_HOSTNAME} ${DEVICE} ; then

        echo $" done."

    else

        echo $" failed."

        if [ "${dhcpipv4}" = "good" -o -n "${IPADDR}" ]; then

            net_log "Unable to obtain IPv6 DHCP address ${DEVICE}." warning

        else

            exit 1

        fi

    fi

fi

if [ "${IPX}" = yes ]; then

       /etc/sysconfig/network-scripts/ifup-ipx ${DEVICE}

fi

exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2}