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authorBill Nottingham <notting@redhat.com>2005-01-19 20:40:14 +0000
committerBill Nottingham <notting@redhat.com>2005-01-19 20:40:14 +0000
commit26dcf158f489cacb0a9604b80e7f3eb5a14a6ec3 (patch)
tree9239548c11e21e1b0b5ee1e43ff86777a399a99c /sysconfig/network-scripts/ifup-eth
parent0cf24802f081786e1f40030f1ee6e79b3818bccc (diff)
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split out ifup/ifdown general case to ifup/ifdown-eth; add ifup/ifdown-bnep (<dwmw2@redhat.com>)
Diffstat (limited to 'sysconfig/network-scripts/ifup-eth')
-rwxr-xr-xsysconfig/network-scripts/ifup-eth337
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}
+