diff options
Diffstat (limited to 'sysconfig/network-scripts/ifup-eth')
| -rwxr-xr-x | sysconfig/network-scripts/ifup-eth | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/sysconfig/network-scripts/ifup-eth b/sysconfig/network-scripts/ifup-eth new file mode 100755 index 00000000..b488d272 --- /dev/null +++ b/sysconfig/network-scripts/ifup-eth @@ -0,0 +1,337 @@ +#!/bin/bash +# Network Interface Configuration System +# Copyright (c) 1996-2005 Red Hat, Inc. all rights reserved. +# +# This software may be freely redistributed under the terms of the GNU +# public license. +# +# 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., 675 Mass Ave, Cambridge, MA 02139, 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 ${REALDEVICE} + +# remap, if the device is bound with a MAC address and not the right device num +# bail out, if the MAC does not fit +if [ -n "${HWADDR}" ]; then + FOUNDMACADDR=`get_hwaddr ${REALDEVICE}` + if [ "${FOUNDMACADDR}" != "${HWADDR}" ]; then + curdev=`ip -o link | awk -F ':' -vIGNORECASE=1 "/$HWADDR/ { print \\$2 }"` + [ -n "$curdev" ] && rename_device "${REALDEVICE}" "${HWADDR}" "${curdev}" || { + echo $"Device ${DEVICE} has different MAC address than expected, ignoring." + exit 1 + } + fi +fi + +if [ "${TYPE}" = "Bridge" ]; then + if [ ! -x /usr/sbin/brctl ]; then + echo $"Bridge support not available: brctl not found" + exit 1 + fi + /sbin/ip link set dev ${DEVICE} down 2>/dev/null + /usr/sbin/brctl delbr ${DEVICE} 2>/dev/null + /usr/sbin/brctl addbr ${DEVICE} 2>/dev/null + # brctl doesn't report success/failure (BZ #104408) + # Test for ourselves whether it worked. + if ! /usr/sbin/brctl show | LANG=C grep -q "^${DEVICE} " ; then + echo $"Bridge support not available in this kernel" + exit 1 + fi + [ -n "${DELAY}" ] && /usr/sbin/brctl setfd ${DEVICE} ${DELAY} + [ -n "${GCINT}" ] && /usr/sbin/brctl setgcint ${DEVICE} ${GCINT} + [ -n "${STP}" ] && /usr/sbin/brctl stp ${DEVICE} ${STP} +fi + +if [ -n "${BRIDGE}" -a -x /usr/sbin/brctl ]; then + /sbin/ip addr flush dev ${DEVICE} 2>/dev/null + /sbin/ip link set dev ${DEVICE} up + /usr/sbin/brctl addif ${BRIDGE} ${DEVICE} + # 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 + +# now check the real state +is_available ${REALDEVICE} || { + if [ "$?" = "1" ] ; then + echo $"$alias device ${DEVICE} does not seem to be present, delaying initialization." + exit 1 + else + exit 0 + 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}" != "" -a \ + -x /sbin/ifenslave ]; then + RFLAG="" ; [ "${RECEIVEONLY}" = yes ] && RFLAG="-r" + + /sbin/ip link set dev ${DEVICE} down + echo $"Enslaving ${DEVICE} to ${MASTER}" + ifenslave ${RFLAG} "${MASTER}" "${DEVICE}" >/dev/null 2>&1 + + if [ -n "$ETHTOOL_OPTS" ] ; then + /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS + fi + + exit 0 +fi + +# Bonding initialization. For DHCP, we need to enslave the devices early, +# so it can actually get an IP. +if [ "${TYPE}" = "Bonding" ] || ethtool -i $DEVICE 2>/dev/null| grep -q "driver: bonding" ; then + /sbin/ip link set dev ${DEVICE} down + /sbin/ip link set dev ${DEVICE} up + for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do + if [ "$BOOTPROTO" = "dhcp" ]; then + /sbin/ifup ${device##*/} + fi + done +fi + +# this isn't the same as the MAC in the configuration filename. It is +# available as a configuration option in the config file, forcing the kernel +# to think an ethernet card has a different MAC address than it really has. +if [ -n "${MACADDR}" ]; then + ip link set dev ${DEVICE} address ${MACADDR} +fi +if [ -n "${MTU}" ]; then + ip link set dev ${DEVICE} mtu ${MTU} +fi + +# Is there a firewall running, and does it look like one we configured? +FWACTIVE= +if iptables -L -n 2>/dev/null | LC_ALL=C grep -q RH-Lokkit-0-50-INPUT ; then + FWACTIVE=1 +else + modprobe -r iptable_filter >/dev/null 2>&1 +fi + +# Remove any temporary references which were previously added to dhclient config +if [ -w /etc/dhclient-${DEVICE}.conf ] && [ -x /sbin/dhclient ] ; then + LC_ALL=C grep -v "# temporary RHL ifup addition" /etc/dhclient-${DEVICE}.conf > /etc/dhclient-${DEVICE}.conf.ifupnew 2> /dev/null + cat /etc/dhclient-${DEVICE}.conf.ifupnew > /etc/dhclient-${DEVICE}.conf + rm -f /etc/dhclient-${DEVICE}.conf.ifupnew +fi + +if [ -n "${DYNCONFIG}" ]; then + PUMPARGS=$PUMPARGS + DHCPCDARGS="$DHCPCDARGS -n" + if [[ "${PERSISTENT_DHCLIENT}" = [yY1]* ]]; then + ONESHOT=""; + else + ONESHOT="-1"; + fi; + if [ -n "${DHCP_HOSTNAME}" ]; then + # Send a host-name to the DHCP server (requ. by some dhcp servers). + PUMPARGS="${PUMPARGS} -h ${DHCP_HOSTNAME}" + DHCPCDARGS="${DHCPCDARGS} -h ${DHCP_HOSTNAME}" + if [ -x /sbin/dhclient ] ; then + if [ -w /etc/dhclient-${DEVICE}.conf ] ; then + if ! LC_ALL=C grep "send *host-name *\"${DHCP_HOSTNAME}\"" /etc/dhclient-${DEVICE}.conf > /dev/null 2>&1 ; then + echo "send host-name \"${DHCP_HOSTNAME}\"; # temporary RHL ifup addition" >> /etc/dhclient-${DEVICE}.conf + fi + elif ! [ -e /etc/dhclient-${DEVICE}.conf ] ; then + echo "send host-name \"${DHCP_HOSTNAME}\"; # temporary RHL ifup addition" >> /etc/dhclient-${DEVICE}.conf + fi + fi + fi + # allow users to use generic '/etc/dhclient.conf' (as documented in manpage!) + # if per-device file doesn't exist or is empty + if [ -s /etc/dhclient-${DEVICE}.conf ]; then + DHCLIENTCONF="-cf /etc/dhclient-${DEVICE}.conf"; + else + DHCLIENTCONF=''; + fi; + DHCLIENTARGS="${DHCLIENTARGS} ${ONESHOT} -q ${DHCLIENTCONF} -lf /var/lib/dhcp/dhclient-${DEVICE}.leases -pf /var/run/dhclient-${DEVICE}.pid" + if need_hostname; then + # Set hostname of host to host-name option supplied by DHCP. + PUMPARGS="${PUMPARGS} --lookup-hostname" + DHCPCDARGS="${DHCPCDARGS} -H" + fi + if [ "${PEERDNS}" = "no" ]; then + # Do not update/replace resolv.conf. + PUMPARGS="${PUMPARGS} -d" + DHCPCDARGS="${DHCPCDARGS} -R" + fi + echo + echo -n $"Determining IP information for ${DEVICE}..." + if check_link_down ${DEVICE}; then + echo $" failed; no link present. Check cable?" + ip link set dev ${DEVICE} down >/dev/null 2>&1 + exit 1 + fi + + if [ -n "$ETHTOOL_OPTS" ] ; then + /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS + fi + + # DHCP clients need DNS to be available, and we don't know + # what DNS server they're using until they are done. + FWHACK= + if [ -n "$FWACTIVE" -a "$FIREWALL_MODS" != "no" ]; then + iptables -I RH-Lokkit-0-50-INPUT -m udp -s 0/0 --sport 53 -d 0/0 --dport 1025:65535 -p udp -j ACCEPT + FWHACK=1 + fi + + if [ -x /sbin/dhclient ] && /sbin/dhclient ${DHCLIENTARGS} ${DEVICE} ; then + echo $" done." + else + echo $" failed." + [ -n "$FWHACK" ] && iptables -D RH-Lokkit-0-50-INPUT -m udp -s 0/0 --sport 53 -d 0/0 --dport 1025:65535 -p udp -j ACCEPT + exit 1 + fi + + [ -n "$FWHACK" ] && iptables -D RH-Lokkit-0-50-INPUT -m udp -s 0/0 --sport 53 -d 0/0 --dport 1025:65535 -p udp -j ACCEPT + + # DHCP likes to create duplicate routes. Fix that up. + NUMDEFROUTES=`ip -o route | \ + awk '/^default/ { nlines++ } END { print nlines }'` + if [ -n "$NUMDEFROUTES" ] && [ "$NUMDEFROUTES" -gt 1 ]; then + # remove the default route for the new device (old route wins) + ip route del default dev ${DEVICE} + fi +# end dynamic device configuration +else + if [ -z "${IPADDR}" ]; then + # enable device without IP, useful for e.g. PPPoE + ip link set dev ${REALDEVICE} up + if [ -n "$ETHTOOL_OPTS" ] ; then + /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS + fi + # Bonding initialization part II + if [ "${TYPE}" = "Bonding" ] || ethtool -i $DEVICE 2>/dev/null| grep -q "driver: bonding" ; then + for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do + /sbin/ifup ${device##*/} + done + fi + + if [ "${NETWORKING_IPV6}" = "yes" ]; then + /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG} + fi + exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} + fi + + expand_config + + [ -n "${ARP}" ] && \ + ip link set dev ${REALDEVICE} $(toggle_value arp $ARP) + + if ! ip link set dev ${REALDEVICE} up ; then + echo $"Failed to bring up ${DEVICE}." + exit 1 + fi + + if [ -n "$ETHTOOL_OPTS" ] ; then + /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS + fi + + if ! arping -q -c 2 -w 3 -D -I ${REALDEVICE} ${IPADDR} ; then + echo $"Error, some other host already uses address ${IPADDR}." + exit 1 + fi + + if [ "${DEVICE}" = "lo" ]; then + SCOPE="scope host" + else + SCOPE=${SCOPE:-} + fi + + if [ -n "$SRCADDR" ]; then + SRC="src $SRCADDR" + else + SRC= + fi + + if ! LC_ALL=C ip addr ls ${REALDEVICE} | LC_ALL=C grep -q "${IPADDR}/${PREFIX}" ; then + if ! ip addr add ${IPADDR}/${PREFIX} \ + brd ${BROADCAST:-+} dev ${REALDEVICE} ${SCOPE} label ${DEVICE}; then + echo $"Error adding address ${IPADDR} for ${DEVICE}." + fi + fi + + if [ -n "$SRCADDR" ]; then + sysctl -w "net.ipv4.conf.${REALDEVICE}.arp_filter=1" >/dev/null 2>&1 + fi + + # update ARP cache of neighboring computers + arping -q -A -c 1 -I ${REALDEVICE} ${IPADDR} + ( sleep 2; + arping -q -U -c 1 -I ${REALDEVICE} ${IPADDR} ) > /dev/null 2>&1 < /dev/null & + + # Set a default route. + if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${REALDEVICE}" ]; then + # set up default gateway. replace if one already exists + if [ -n "${GATEWAY}" -a "`ipcalc --network ${GATEWAY} ${NETMASK} 2>/dev/null`" = "NETWORK=${NETWORK}" ]; then + ip route replace default via ${GATEWAY} ${WINDOW:+window $WINDOW} ${SRC} ${GATEWAYDEV:+dev $GATEWAYDEV} + elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then + ip route replace default ${SRC} ${WINDOW:+window $WINDOW} dev ${REALDEVICE} + fi + fi + +fi + +# Bonding initialization part II - for static, enslave the devices. For +# DHCP, remove any routes for the slaves. +if [ "${TYPE}" = "Bonding" ] || ethtool -i $DEVICE 2>/dev/null| grep -q "driver: bonding" ; then + for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do + if [ "$BOOTPROTO" = "dhcp" ]; then + DEV=$DEVICE + eval $(LANG=C fgrep "DEVICE=" $device) + ifenslave -d $DEV $DEVICE + DEVICE=$DEV + fi + /sbin/ifup ${device##*/} + done +fi + +# Add Zeroconf route. +if [ -z "${NOZEROCONF}" -a "${ISALIAS}" = "no" ]; then + ip route replace 169.254.0.0/16 dev ${REALDEVICE} +fi + +# IPv6 initialisation? +if [ "${NETWORKING_IPV6}" = "yes" ]; then + /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG} + if [[ "${DHCPV6C}" = [Yy1]* ]] && [ -x /sbin/dhcp6c ]; then + /sbin/dhcp6c ${DEVICE}; + dhcp6_pid=(`/bin/ps -eo 'pid,args' | /bin/grep "dhcp6c ${DEVICE}" | egrep -v grep`); + echo ${dhcp6_pid[0]} > /var/run/dhcp6c_${DEVICE}.pid + fi; +fi + +if [ "${IPX}" = yes ]; then + /etc/sysconfig/network-scripts/ifup-ipx ${DEVICE} +fi + +exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} + |