
ip tuntap provides the functionality that we obtained from tunctl. We only needed tunctl when ifconfig was more available than ip. That isn't the case now so we can drop tunctl and all the hoops we need to jump through to build and provide it. (From OE-Core rev: 2abfbca690ff00cb58ce08a65cde006578ee3de9) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
1.5 KiB
Executable File
#!/bin/bash
QEMU network configuration script to bring down tap devices. This
utility needs to be run as root, and will use the ip utility
If you find yourself calling this script a lot, you can add the
the following to your /etc/sudoers file to be able to run this
command without entering your password each time:
ALL=NOPASSWD: /path/to/runqemu-ifup
ALL=NOPASSWD: /path/to/runqemu-ifdown
Copyright (c) 2006-2011 Linux Foundation
SPDX-License-Identifier: GPL-2.0-only
usage() { echo "sudo $(basename $0) " }
if [ $EUID -ne 0 ]; then echo "Error: This script (runqemu-ifdown) must be run with root privileges" exit 1 fi
if [ $# -ne 2 ]; then usage exit 1 fi
TAP=$1 STAGING_BINDIR_NATIVE=$2
if !ip tuntap del $TAP mode tap 2>/dev/null; then echo "Error: Unable to run up tuntap del" exit 1 fi
IFCONFIG=which ip 2> /dev/null
if [ "x$IFCONFIG" = "x" ]; then
# better than nothing...
IFCONFIG=/sbin/ip
fi
if [ -x "$IFCONFIG" ]; then
if $IFCONFIG link show $TAP > /dev/null 2>&1
; then
$IFCONFIG link del $TAP
fi
fi
cleanup the remaining iptables rules
IPTABLES=which iptables 2> /dev/null
if [ "x$IPTABLES" = "x" ]; then
IPTABLES=/sbin/iptables
fi
if [ ! -x "$IPTABLES" ]; then
echo "$IPTABLES cannot be executed"
exit 1
fi
n=$[ (echo $TAP | sed 's/tap//'
* 2) + 1 ]
dest=$[ (echo $TAP | sed 's/tap//'
* 2) + 2 ]
$IPTABLES -D POSTROUTING -t nat -j MASQUERADE -s 192.168.7.$n/32
$IPTABLES -D POSTROUTING -t nat -j MASQUERADE -s 192.168.7.$dest/32
true