diff options
Diffstat (limited to 'network-scripts/ifup-eth')
| -rwxr-xr-x | network-scripts/ifup-eth | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/network-scripts/ifup-eth b/network-scripts/ifup-eth new file mode 100755 index 00000000..a0988edb --- /dev/null +++ b/network-scripts/ifup-eth @@ -0,0 +1,372 @@ +#!/bin/bash +# Network Interface Configuration System +# Copyright (c) 1996-2014 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + +. /etc/init.d/functions + +cd /etc/sysconfig/network-scripts +. ./network-functions + +[ -f ../network ] && . ../network + +CONFIG=${1} + +need_config "${CONFIG}" + +source_config + +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} ${STP} + [ -n "${PRIO}" ] && /usr/sbin/brctl setbridgeprio ${DEVICE} ${PRIO} + [ -n "${AGEING}" ] && /usr/sbin/brctl setageing ${DEVICE} ${AGEING} + + # add the bits to setup driver parameters here + for arg in $BRIDGING_OPTS ; do + key=${arg%%=*}; + value=${arg##*=}; + if [ "${key}" != "multicast_router" -a "${key}" != "hash_max" -a "${key}" != "multicast_snooping" ]; then + echo $value > /sys/class/net/${DEVICE}/bridge/$key + fi + done + + # set LINKDELAY (used as timeout when calling check_link_down()) + # to at least (${DELAY} * 2) + 7 if STP is enabled. This is the + # minimum time required for /sys/class/net/$REALDEVICE/carrier to + # become 1 after "ip link set dev $DEVICE up" is called. + if is_true "${STP}"; then + if [ -n "${DELAY}" ]; then + forward_delay="${DELAY}" + else + # If the ${DELAY} value is not set by the user, then we need to obtain + # the forward_delay value from kernel first, and convert it to seconds. + # Otherwise STP might not correctly complete the startup before trying + # to obtain an IP address from DHCP. + forward_delay="$(cat /sys/devices/virtual/net/${DEVICE}/bridge/forward_delay)" + forward_delay="$(convert2sec ${forward_delay} centi)" + fi + + forward_delay=$(expr ${forward_delay} \* 2 + 7) + + [ 0$LINKDELAY -lt $forward_delay ] && LINKDELAY=$forward_delay + + unset forward_delay + fi +fi + +# Create tap device. +if [ "${TYPE}" = "Tap" ]; then + [ -n "${OWNER}" ] && OWNER="user ${OWNER}" + TUNMODE="mode tap" + [[ ${DEVICE} == tun* ]] && TUNMODE="mode tun" + ip tuntap add ${TUNMODE} ${OWNER} dev ${DEVICE} > /dev/null +fi + +# Team master initialization. +if [ -n "${TEAM_CONFIG}" ] && [ ! "${DEVICETYPE}" = "Team" ] && [ -x ./ifup-Team ]; then + ./ifup-Team ${CONFIG} $2 +fi + +# now check the real state +is_available_wait ${REALDEVICE} ${DEVTIMEOUT} || { + if [ -n "$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 ${DEVICE} && . ./ifup-wireless + +# Team slave device? +if [ -n "${TEAM_MASTER}" ] && [ ! "${DEVICETYPE}" = "TeamPort" ] && [ -x ./ifup-TeamPort ]; then + ./ifup-TeamPort ${CONFIG} $2 + ethtool_set + exit 0 +fi + +# slave device? +if [ "${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##*/} || net_log "Unable to start slave device ${device##*/} for master ${DEVICE}." warning + done + + [ -n "${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}" ] && [ -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 /run/radvd/radvd.pid ] && kill -HUP $(cat /run/radvd/radvd.pid) + exit 0 +fi + +if [ -n "${DYNCONFIG}" ] && [ -x /sbin/dhclient ]; then + if is_true "${PERSISTENT_DHCLIENT}"; then + ONESHOT=""; + else + ONESHOT="-1"; + fi; + generate_config_file_name + generate_lease_file_name + + # Initialize the dhclient args and obtain the hostname options if needed: + DHCLIENTARGS="${DHCLIENTARGS} ${ONESHOT} -q ${DHCLIENTCONF} -lf ${LEASEFILE} -pf /run/dhclient-${DEVICE}.pid" + set_hostname_options DHCLIENTARGS + + echo + echo -n $"Determining IP information for ${DEVICE}..." + if ! is_true "${PERSISTENT_DHCLIENT}" && 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 $" failed." + if is_true "${IPV4_FAILURE_FATAL}"; then + exit 1 + fi + if is_false "$IPV6INIT" || ! is_true "$DHCPV6C"; 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 + ARPING=$(/sbin/arping -c 2 -w ${ARPING_WAIT:-3} -D -I ${REALDEVICE} ${ipaddr[$idx]}) + if [ $? = 1 ]; then + ARPINGMAC=$(echo $ARPING | sed -ne 's/.*\[\(.*\)\].*/\1/p') + net_log $"Error, some other host ($ARPINGMAC) 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.${SYSCTLDEVICE}.arp_filter=1" >/dev/null 2>&1 + fi + + # update ARP cache of neighboring computers + if ! is_false "${arpupdate[$idx]}" && [ "${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 + + # set lifetime of address to forever + ip addr change ${ipaddr[$idx]}/${prefix[$idx]} dev ${REALDEVICE} valid_lft forever preferred_lft forever + done + + # Set a default route. + if [ "${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} \ + ${EXTRA_ROUTE_OPTS} \ + 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} \ + ${EXTRA_ROUTE_OPTS} \ + ${SRC} ${WINDOW:+window $WINDOW} dev ${REALDEVICE} || + net_log $"Error 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 + +if [ "${TYPE}" = "Bridge" ]; then + for arg in $BRIDGING_OPTS ; do + key=${arg%%=*}; + value=${arg##*=}; + if [ "${key}" = "multicast_router" -o "${key}" = "hash_max" -o "${key}" = "multicast_snooping" ]; then + echo $value > /sys/class/net/${DEVICE}/bridge/$key + fi + done +fi + +# IPv6 initialisation? +/etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG} +if is_true "${DHCPV6C}" && [ -x /sbin/dhclient ]; then + + # Assign interface into a firewalld zone so we can obtain the IPv6 via DHCPv6: + if [ "${REALDEVICE}" != "lo" ]; then + dbus-send --print-reply --system --dest=org.fedoraproject.FirewallD1 \ + /org/fedoraproject/FirewallD1 \ + org.fedoraproject.FirewallD1.zone.changeZoneOfInterface \ + string:"${ZONE}" string:"${DEVICE}" \ + > /dev/null 2>&1 + fi + + generate_config_file_name 6 + generate_lease_file_name 6 + echo + echo -n $"Determining IPv6 information for ${DEVICE}..." + + # Initialize the dhclient args for IPv6 and obtain the hostname options if needed: + DHCLIENTARGS="-6 -1 ${DHCPV6C_OPTIONS} ${DHCLIENTCONF} -lf ${LEASEFILE} -pf /run/dhclient6-${DEVICE}.pid ${DEVICE}" + set_hostname_options DHCLIENTARGS + + if /sbin/dhclient $DHCLIENTARGS; 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 + +exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} |