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authorPreston Brown <pbrown@redhat.com>2001-05-11 16:39:29 +0000
committerPreston Brown <pbrown@redhat.com>2001-05-11 16:39:29 +0000
commit8809e4a00c82727bedd1d3d3d8101abde5c4b6bb (patch)
tree4caf9eb92520daf4196f6dd39afef7dba6ab130d /sysconfig/network-scripts/ifup
parent895808bda0332778482acf17e9935b25e2901806 (diff)
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port to ip from ifconfig; add ifup-wireless support
Diffstat (limited to 'sysconfig/network-scripts/ifup')
-rwxr-xr-xsysconfig/network-scripts/ifup125
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}
+