diff options
Diffstat (limited to 'sysconfig/network-scripts/ifup')
| -rwxr-xr-x | sysconfig/network-scripts/ifup | 125 |
1 files changed, 92 insertions, 33 deletions
diff --git a/sysconfig/network-scripts/ifup b/sysconfig/network-scripts/ifup index 45a341c4..ce0ca127 100755 --- a/sysconfig/network-scripts/ifup +++ b/sysconfig/network-scripts/ifup @@ -1,4 +1,14 @@ #!/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 @@ -6,18 +16,28 @@ 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 + echo $"Usage: ifup <device name>" >&2 exit 1 } -[ -f "${CONFIG}" ] || CONFIG=ifcfg-${CONFIG} +[ -f "${CONFIG}" ] || \ + CONFIG=../networking/`current_profile`/${1} +[ -f "${CONFIG}" ] || \ + CONFIG=../networking/`current_profile`/"ifcfg-${1}" +[ -f "${CONFIG}" ] || \ + CONFIG="ifcfg-${1}" + [ -f "${CONFIG}" ] || { - echo $"usage: ifup <device name>" >&2 + echo $"$0: configuration for \"${1}\" not found." >&2 + echo $"Usage: ifup <device name>" >&2 exit 1 } @@ -38,8 +58,7 @@ then exit fi -IPSETUP=no - +# 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 @@ -68,11 +87,22 @@ if [ -x ${OTHERSCRIPT} ]; then fi # is this device available? (this catches PCMCIA devices for us) -LC_ALL= LANG= /sbin/ifconfig ${REALDEVICE} 2>&1 | grep -s "not found" > /dev/null -if [ "$?" = "0" ]; then - echo $"Delaying ${DEVICE} initialization." +LC_ALL= LANG= ip -o link | grep -q ${REALDEVICE} +if [ "$?" = "1" ]; then + echo $"Device does not seem to be present, delaying ${DEVICE} initialization." exit 1 fi +if [ -n "${MACADDR}" ]; then + FOUNDMACADDR=`LC_ALL= LANG= ip -o link show ${REALDEVICE} | \ + sed 's/.*link\/ether \([[:alnum:]:]*\).*/\1/'` + if [ "${FOUNDMACADDR}" != "${MACADDR}" ]; then + echo $"Device ${DEVICE} has different MAC address than expected, ignoring." + exit 1 + 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 @@ -85,15 +115,20 @@ if [ "${SLAVE}" = yes -a "${ISALIAS}" = no -a "${MASTER}" != "" -a \ exit 0 fi +# this isn't the same as the MAC in the configuration filename. It is +# available as a configuration option in the config file, forcing the kernel +# to think an ethernet card has a different MAC address than it really has. if [ -n "${MACADDR}" ]; then - ifconfig ${DEVICE} hw ether ${MACADDR} + ip link set ${DEVICE} address ${MACADDR} fi # Is there a firewall running, and does it look like one we configured? FWACTIVE= -if [ -f /etc/sysconfig/ipchains -a "`ipchains -L input -n 2>&1 | awk 'END { print NR }'`" -gt 1 ]; then - FWACTIVE=1 - export FWACTIVE +if [ -f /etc/sysconfig/ipchains -a \ + "`ipchains -L input -n 2>&1 | \ + awk 'END { print NR }'`" -gt 1 ]; then + FWACTIVE=1 + export FWACTIVE fi if [ -n "${DYNCONFIG}" ]; then @@ -130,16 +165,21 @@ if [ -n "${DYNCONFIG}" ]; then [ -n "$FWHACK" ] && ipchains -D input -s 0/0 53 -p udp -j ACCEPT exit 1 fi + [ -n "$FWHACK" ] && ipchains -D input -s 0/0 53 -p udp -j ACCEPT else if [ -z "${IPADDR}" ]; then # enable device without IP, useful for e.g. PPPoE - ifconfig ${DEVICE} up ${MTU:+mtu $MTU} + ip link set ${DEVICE} up ${MTU:+mtu $MTU} exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} fi if [ -z "${NETMASK}" ]; then - eval `/bin/ipcalc --netmask ${IPADDR}` + eval `/bin/ipcalc --prefix ${IPADDR}` + fi + + if [ -z "${PREFIX}" ]; then + eval `/bin/ipcalc --prefix ${NETMASK}` fi if [ -z "${BROADCAST}" ]; then @@ -150,20 +190,45 @@ else eval `/bin/ipcalc --network ${IPADDR} ${NETMASK}` fi - ifconfig ${DEVICE} ${IPADDR} netmask ${NETMASK} broadcast ${BROADCAST} \ - $(toggle_value arp $ARP) \ - $(toggle_value promisc $PROMISC) \ - $(toggle_value allmulti $ALLMULTI) - - # don't re-add subnet route on 2.2 kernels, but add a route - # to a non-local subnet. - # stupid hack, but it should work - if [ "$ISALIAS" = no ] && [ -z "`route -n | sed "s/ .*//" | grep ${NETWORK}`" ]; then - route add -net ${NETWORK} netmask ${NETMASK} dev ${DEVICE} + [ -n "${ARP}" ] && \ + ip link set ${DEVICE} $(toggle_value arp $ARP) + + if ! ip link set ${DEVICE} up ; then + echo $"Failed to bring up ${DEVICE}." + exit 1 fi - . /etc/sysconfig/network + 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 ! 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 < /dev/null & + ip route add unreachable 224.0.0.0/24 >& /dev/null + ip route add unreachable 255.255.255.255 >& /dev/null + + # if the device is multicast enabled, add a default multicast route + if [ `ip link ls ${DEVICE} | grep -c MULTICAST` -ge 1 ]; then + ip route add 224.0.0.0/4 dev ${DEVICE} scope global >& /dev/null + fi + + # Add a route for the subnet. Replace any existing route. + if [ "${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 @@ -175,16 +240,10 @@ else fi fi -. /etc/sysconfig/network - # IPv6 initialisation? if [ "${NETWORKING_IPV6}" = "yes" ]; then - /etc/sysconfig/network-scripts/ifup-ipv6 $DEVICE -fi - - -if [ "${IPX}" = yes ]; then - /etc/sysconfig/network-scripts/ifup-ipx ${DEVICE} + /etc/sysconfig/network-scripts/ifup-ipv6 $DEVICE fi exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} + |