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#!/bin/sh
# adds aliases of device $1
if [ "$1" = "" ]; then
echo "usage: $0 <net-device>"
exit 1
fi
# don't run linuxconf if /usr isn't there...
if [ -x /bin/linuxconf -a -f /usr/lib/libncurses.so.4.2 ] ; then
# ask linuxconf for lines like:
# add <device> <ip>
# del <device>
# reload <number_of_aliases>
linuxconf --hint ipalias $1 | while read verb arg1 arg2 arg3 arg4; do
case $verb in
add)
if [ -z "$arg3" ] ; then
# old linuxconf
/sbin/ifconfig $arg1 $arg2
else
# new linuxconf
/sbin/ifconfig $arg1 $arg2 netmask $arg3 broadcast $arg4
fi
;;
del)
# the <device> 0.0.0.0 tells the kernel to remove the device
# it is necessary to remove it in order for reload to work.
/sbin/ifconfig ${arg1} 0.0.0.0
;;
reload)
echo $arg1 > /proc/sys/net/core/net_alias_max
;;
esac
done
else
# we don't have linuxconf to fall back on, so presumably we do
# not have to parse linuxconf ipalias ranges, either.
# bash 2 is so much fun.
if [ "$BASH_VERSINFO" ]; then
shopt -s nullglob
else
allow_null_glob_expansion=foo
fi
for alias in /etc/sysconfig/network-scripts/ifcfg-$1:* ; do
[ -f $alias ] && /etc/sysconfig/network-scripts/ifup $alias
done
if [ "$BASH_VERSINFO" ]; then
shopt -u nullglob
else
unset allow_null_glob_expansion
fi
fi
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