ffae400179
This adds SPDX license headers in place of the wide assortment of things currently in our script headers. We default to GPL-2.0-only except for the oeqa code where it was clearly submitted and marked as MIT on the most part or some scripts which had the "or later" GPL versioning. The patch also drops other obsolete bits of file headers where they were encoountered such as editor modelines, obsolete maintainer information or the phrase "All rights reserved" which is now obsolete and not required in copyright headers (in this case its actually confusing for licensing as all rights were not reserved). More work is needed for OE-Core but this takes care of the bulk of the scripts and meta/lib directories. The top level LICENSE files are tweaked to match the new structure and the SPDX naming. (From OE-Core rev: f8c9c511b5f1b7dbd45b77f345cb6c048ae6763e) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2.9 KiB
Executable File
#!/bin/bash
QEMU network interface configuration script. This utility needs to
be run as root, and will use the tunctl binary from a native sysroot.
Note: many Linux distros these days still use an older version of
tunctl which does not support the group permissions option, hence
the need to use build system's version.
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
If you'd like to create a bank of tap devices at once, you should use
the runqemu-gen-tapdevs script instead. If tap devices are set up using
that script, the runqemu script will never end up calling this
script.
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-ifup) must be run with root privileges" exit 1 fi
if [ $# -ne 3 ]; then usage exit 1 fi
USERID="-u $1" GROUP="-g $2" STAGING_BINDIR_NATIVE=$3
TUNCTL=$STAGING_BINDIR_NATIVE/tunctl if [ ! -x "$TUNCTL" ]; then echo "Error: Unable to find tunctl binary in '$STAGING_BINDIR_NATIVE', please bitbake qemu-helper-native" exit 1 fi
TAP=$TUNCTL -b $GROUP 2>&1
STATUS=$?
if [ $STATUS -ne 0 ]; then
If tunctl -g fails, try using tunctl -u, for older host kernels
which do not support the TUNSETGROUP ioctl
TAP=`$TUNCTL -b $USERID 2>&1`
STATUS=$?
if [ $STATUS -ne 0 ]; then
echo "tunctl failed:"
exit 1
fi
fi
IFCONFIG=which ip 2> /dev/null
if [ "x$IFCONFIG" = "x" ]; then
# better than nothing...
IFCONFIG=/sbin/ip
fi
if [ ! -x "$IFCONFIG" ]; then
echo "$IFCONFIG cannot be executed"
exit 1
fi
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 ]
$IFCONFIG addr add 192.168.7.$n/32 broadcast 192.168.7.255 dev $TAP
STATUS=$?
if [ $STATUS -ne 0 ]; then
echo "Failed to set up IP addressing on $TAP"
exit 1
fi
$IFCONFIG link set dev $TAP up
STATUS=$?
if [ $STATUS -ne 0 ]; then
echo "Failed to bring up $TAP"
exit 1
fi
dest=$[ (echo $TAP | sed 's/tap//' * 2) + 2 ]
$IFCONFIG route add to 192.168.7.$dest dev $TAP
STATUS=$?
if [ $STATUS -ne 0 ]; then
echo "Failed to add route to 192.168.7.$dest using $TAP"
exit 1
fi
setup NAT for tap0 interface to have internet access in QEMU
$IPTABLES -A POSTROUTING -t nat -j MASQUERADE -s 192.168.7.$n/32 $IPTABLES -A POSTROUTING -t nat -j MASQUERADE -s 192.168.7.$dest/32 echo 1 > /proc/sys/net/ipv4/ip_forward echo 1 > /proc/sys/net/ipv4/conf/$TAP/proxy_arp $IPTABLES -P FORWARD ACCEPT
echo $TAP