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#!/bin/bash
# Network Interface Configuration System
# Copyright (c) 1996-2001 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.
PATH=/sbin:/usr/sbin:/bin:/usr/bin
TEXTDOMAIN=initscripts
cd /etc/sysconfig/network-scripts
. network-functions
. /etc/rc.d/init.d/functions
[ -f ../network ] && . ../network
[ -f ../networking/network ] && . ../networking/network
need_hostname
CONFIG=${1}
[ -z "${CONFIG}" ] && {
echo $"Usage: ifup <device name>" >&2
exit 1
}
need_config ${CONFIG}
[ -f "${CONFIG}" ] || {
echo $"$0: configuration for ${1} not found." >&2
echo $"Usage: ifup <device name>" >&2
exit 1
}
if [ ${UID} != 0 ]; then
if [ -x /usr/sbin/usernetctl ]; then
if /usr/sbin/usernetctl ${CONFIG} report ; then
exec /usr/sbin/usernetctl ${CONFIG} up
fi
fi
echo $"Users cannot control this device." >&2
exit 1
fi
source_config
if [ "foo$2" = "fooboot" -a "${ONBOOT}" = "no" -o "${ONBOOT}" = "NO" ]
then
exit 0
fi
if [ -n "$IN_HOTPLUG" -a "${HOTPLUG}" = "no" -o "${HOTPLUG}" = "NO" ]
then
exit 0
fi
# figure out more about what we are dealing with
DEVICETYPE=`echo ${DEVICE} | sed "s/[0-9]*$//"`
REALDEVICE=`echo ${DEVICE} | sed 's/:.*//g'`
if echo ${DEVICE} | grep -q ':' ; then
ISALIAS=yes
else
ISALIAS=no
fi
# Old BOOTP variable
if [ "${BOOTP}" = "yes" ]; then
BOOTPROTO=bootp
fi
if [ "${BOOTPROTO}" = "bootp" -o "${BOOTPROTO}" = "dhcp" ]; then
DYNCONFIG=true
fi
if [ -x /sbin/ifup-pre-local ]; then
/sbin/ifup-pre-local ${DEVICE}
fi
OTHERSCRIPT="/etc/sysconfig/network-scripts/ifup-${DEVICETYPE}"
if [ -x ${OTHERSCRIPT} ]; then
exec ${OTHERSCRIPT} ${CONFIG} $2
fi
# is this device available? (this catches PCMCIA devices for us)
LC_ALL= LANG= ip -o link | grep -q ${REALDEVICE}
if [ "$?" = "1" ]; then
alias=`modprobe -c | awk "/^alias ${REALDEVICE} / { print \\$3 }"`
if [ -z "$alias" -o "$alias" = "off" ]; then
exit 0
fi
modprobe $alias || {
echo $"$alias device does not seem to be present, delaying ${DEVICE} initialization."
exit 1
}
fi
if [ -n "${HWADDR}" ]; then
FOUNDMACADDR=`LC_ALL= LANG= ip -o link show ${REALDEVICE} | \
sed 's/.*link\/ether \([[:alnum:]:]*\).*/\1/'`
if [ "${FOUNDMACADDR}" != "${HWADDR}" ]; then
NEWCONFIG=`fgrep -l "HWADDR=${HWADDR}" /etc/sysconfig/network-scripts/ifcfg-*`
if [ -n "${NEWCONFIG}" ]; then
exec /sbin/ifup ${NEWCONFIG}
fi
NEWCONFIG=`fgrep -l "HWADDR=${HWADDR}" /etc/sysconfig/networking/default/ifcfg-*`
if [ -n "${NEWCONFIG}" ]; then
exec /sbin/ifup ${NEWCONFIG}
else
echo $"Device ${DEVICE} has different MAC address than expected, ignoring."
exit 1
fi
fi
fi
# is the device wireless? If so, configure wireless device specifics
is_wireless_device ${DEVICE} && ./ifup-wireless ${CONFIG}
if [ "${SLAVE}" = yes -a "${ISALIAS}" = no -a "${MASTER}" != "" -a \
-x /sbin/ifenslave ]; then
RFLAG="" ; [ "${RECEIVEONLY}" = yes ] && RFLAG="-r"
ifconfig ${DEVICE} down
echo $"Enslaving ${DEVICE} to ${MASTER}"
ifenslave ${RFLAG} "${MASTER}" "${DEVICE}"
exit 0
fi
# this isn't the same as the MAC in the configuration filename. It is
# available as a configuration option in the config file, forcing the kernel
# to think an ethernet card has a different MAC address than it really has.
if [ -n "${MACADDR}" ]; then
ip link set ${DEVICE} address ${MACADDR}
fi
if [ -n "${MTU}" ]; then
ip link set ${DEVICE} mtu ${MTU}
fi
# Is there a firewall running, and does it look like one we configured?
FWACTIVE=
if [ -f /etc/sysconfig/ipchains -a \
"`ipchains -L input -n 2>&1 | \
awk 'END { print NR }'`" -gt 1 ]; then
FWACTIVE=1
export FWACTIVE
fi
if [ -n "${DYNCONFIG}" ]; then
PUMPARGS=$PUMPARGS
DHCPCDARGS="$DHCPCDARGS -n"
if [ -n "${DHCP_HOSTNAME}" ]; then
PUMPARGS="-h ${DHCP_HOSTNAME}"
DHCPCDARGS="-h ${DHCP_HOSTNAME}"
fi
if [ -n "${NEEDHOSTNAME}" ]; then
PUMPARGS="${PUMPARGS} --lookup-hostname"
DHCPCDARGS="${DHCPCDARGS} -H"
fi
if [ "${PEERDNS}" = "no" ]; then
PUMPARGS="${PUMPARGS} -d"
DHCPCDARGS="${DHCPCDARGS} -R"
fi
echo -n $"Determining IP information for ${DEVICE}..."
# DHCP clients need DNS to be available, and we don't know
# what DNS server they're using until they are done.
FWHACK=
if [ -n "$FWACTIVE" -a "$FIREWALL_MODS" != "no" ]; then
ipchains -I input -s 0/0 53 -d 0/0 1025:65535 -p udp -j ACCEPT
FWHACK=1
fi
if [ -x /sbin/dhcpcd ] && /sbin/dhcpcd ${DHCPCDARGS} ${DEVICE} ; then
echo $" done."
elif [ -z "`pidof -x dhcpcd`" ] && [ -x /sbin/pump ] && /sbin/pump ${PUMPARGS} -i ${DEVICE}; then
echo $" done."
else
echo $" failed."
[ -n "$FWHACK" ] && ipchains -D input -s 0/0 53 -d 0/0 1025:65535 -p udp -j ACCEPT
exit 1
fi
[ -n "$FWHACK" ] && ipchains -D input -s 0/0 53 -d 0/0 1025:65535 -p udp -j ACCEPT
else
if [ -z "${IPADDR}" ]; then
# enable device without IP, useful for e.g. PPPoE
ip link set ${DEVICE} up
if [ "${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}${PROMISC}${ALLMULTI}" ] && \
ip link set ${DEVICE} $(toggle_value arp $ARP) \
$(toggle_value promisc $PROMISC) \
$(toggle_value allmulti $ALLMULTI)
if ! ip link set ${DEVICE} up ; then
echo $"Failed to bring up ${DEVICE}."
exit 1
fi
if ! arping -q -c 2 -w 3 -D -I ${DEVICE} ${IPADDR} ; then
echo $"Error, some other host already uses address ${IPADDR}."
exit 1
fi
if ! LC_ALL=C ip addr ls ${DEVICE} | grep -q "${IPADDR}/${PREFIX}" ; then
if ! ip addr add ${IPADDR}/${PREFIX} \
brd ${BROADCAST:-+} dev ${DEVICE} ; then
echo $"Error adding address ${IPADDR} for ${DEVICE}."
fi
fi
# update ARP cache of neighboring computers
arping -q -A -c 1 -I ${DEVICE} ${IPADDR}
( sleep 2;
arping -q -U -c 1 -I ${DEVICE} ${IPADDR} ) > /dev/null 2>&1 < /dev/null &
# Add a route for the subnet. Replace any existing route.
if [ "${ISALIAS}" = no ]; then
ip route replace ${NETWORK}/${PREFIX} dev ${DEVICE}
fi
# Set a default route.
if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then
# set up default gateway
if [ -n "${GATEWAY}" -a "`ipcalc --network ${GATEWAY} ${NETMASK} 2>/dev/null`" = "NETWORK=${NETWORK}" ]; then
ip route add default via ${GATEWAY}
DEFGW=${GATEWAY}
elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
ip route add default dev ${DEVICE}
fi
fi
fi
# IPv6 initialisation?
if [ "${NETWORKING_IPV6}" = "yes" ]; then
/etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG}
fi
exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2}
|
