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609fc15718
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>
99 lines
2.5 KiB
Bash
Executable File
99 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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#
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# Create a "bank" of tap network devices that can be used by the
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# runqemu script. This script needs to be run as root
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#
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# Copyright (C) 2010 Intel Corp.
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#
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# SPDX-License-Identifier: GPL-2.0-only
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#
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uid=`id -u`
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gid=`id -g`
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if [ -n "$SUDO_UID" ]; then
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uid=$SUDO_UID
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fi
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if [ -n "$SUDO_GID" ]; then
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gid=$SUDO_GID
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fi
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usage() {
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echo "Usage: sudo $0 <uid> <gid> <num> <staging_bindir_native>"
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echo "Where <uid> is the numeric user id the tap devices will be owned by"
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echo "Where <gid> is the numeric group id the tap devices will be owned by"
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echo "<num> is the number of tap devices to create (0 to remove all)"
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echo "<native-sysroot-basedir> is the path to the build system's native sysroot"
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echo "For example:"
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echo "$ bitbake qemu-helper-native"
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echo "$ sudo $0 $uid $gid 4 tmp/sysroots-components/x86_64/qemu-helper-native/usr/bin"
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echo ""
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exit 1
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}
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if [ $# -ne 4 ]; then
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echo "Error: Incorrect number of arguments"
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usage
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fi
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TUID=$1
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GID=$2
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COUNT=$3
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STAGING_BINDIR_NATIVE=$4
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# check if COUNT is a number and >= 0
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if ! [ $COUNT -ge 0 ]; then
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echo "Error: Incorrect count: $COUNT"
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exit 1
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fi
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if [ $EUID -ne 0 ]; then
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echo "Error: This script must be run with root privileges"
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exit
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fi
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SCRIPT_DIR=`dirname $0`
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RUNQEMU_IFUP="$SCRIPT_DIR/runqemu-ifup"
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if [ ! -x "$RUNQEMU_IFUP" ]; then
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echo "Error: Unable to find the runqemu-ifup script in $SCRIPT_DIR"
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exit 1
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fi
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if interfaces=`ip tuntap list` 2>/dev/null; then
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interfaces=`echo "$interfaces |cut -f1 -d:`
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else
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echo "Failed to call 'ip tuntap list'" >&2
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exit 1
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fi
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# Ensure we start with a clean slate
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for tap in $interfaces; do
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echo "Note: Destroying pre-existing tap interface $tap..."
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ip tuntap del $tap mode tap
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done
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rm -f /etc/runqemu-nosudo
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if [ $COUNT -eq 0 ]; then
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exit 0
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fi
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echo "Creating $COUNT tap devices for UID: $TUID GID: $GID..."
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for ((index=0; index < $COUNT; index++)); do
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echo "Creating tap$index"
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if ! ifup=`$RUNQEMU_IFUP $TUID $GID 2>&1`; then
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echo "Error bringing up interface: $ifup"
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exit 1
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fi
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done
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echo "Note: For systems running NetworkManager, it's recommended"
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echo "Note: that the tap devices be set as unmanaged in the"
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echo "Note: NetworkManager.conf file. Add the following lines to"
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echo "Note: /etc/NetworkManager/NetworkManager.conf"
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echo "[keyfile]"
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echo "unmanaged-devices=interface-name:tap*"
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# The runqemu script will check for this file, and if it exists,
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# will use the existing bank of tap devices without creating
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# additional ones via sudo.
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touch /etc/runqemu-nosudo
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