diff options
Diffstat (limited to 'scripts/runqemu-gen-tapdevs')
| -rwxr-xr-x | scripts/runqemu-gen-tapdevs | 89 |
1 files changed, 49 insertions, 40 deletions
diff --git a/scripts/runqemu-gen-tapdevs b/scripts/runqemu-gen-tapdevs index 624deacb70..a6ee4517da 100755 --- a/scripts/runqemu-gen-tapdevs +++ b/scripts/runqemu-gen-tapdevs @@ -9,33 +9,31 @@ # # Copyright (C) 2010 Intel Corp. # -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License version 2 as -# published by the Free Software Foundation. +# SPDX-License-Identifier: GPL-2.0-only # -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# 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., -# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +uid=`id -u` +gid=`id -g` +if [ -n "$SUDO_UID" ]; then + uid=$SUDO_UID +fi +if [ -n "$SUDO_GID" ]; then + gid=$SUDO_GID +fi usage() { - echo "Usage: sudo $0 <uid> <gid> <num> <native-sysroot-basedir>" - echo "Where <uid> is the numeric user id the tap devices will be owned by" + echo "Usage: sudo $0 <uid> <gid> <num> <staging_bindir_native>" + echo "Where <uid> is the numeric user id the tap devices will be owned by" echo "Where <gid> is the numeric group id the tap devices will be owned by" echo "<num> is the number of tap devices to create (0 to remove all)" echo "<native-sysroot-basedir> is the path to the build system's native sysroot" + echo "For example:" + echo "$ bitbake qemu-helper-native" + echo "$ sudo $0 $uid $gid 4 tmp/sysroots-components/x86_64/qemu-helper-native/usr/bin" + echo "" exit 1 } -if [ $EUID -ne 0 ]; then - echo "Error: This script must be run with root privileges" - exit -fi - if [ $# -ne 4 ]; then echo "Error: Incorrect number of arguments" usage @@ -44,14 +42,19 @@ fi TUID=$1 GID=$2 COUNT=$3 -SYSROOT=$4 +STAGING_BINDIR_NATIVE=$4 -TUNCTL=$SYSROOT/usr/bin/tunctl +TUNCTL=$STAGING_BINDIR_NATIVE/tunctl if [[ ! -x "$TUNCTL" || -d "$TUNCTL" ]]; then echo "Error: $TUNCTL is not an executable" usage fi +if [ $EUID -ne 0 ]; then + echo "Error: This script must be run with root privileges" + exit +fi + SCRIPT_DIR=`dirname $0` RUNQEMU_IFUP="$SCRIPT_DIR/runqemu-ifup" if [ ! -x "$RUNQEMU_IFUP" ]; then @@ -69,32 +72,38 @@ if [ ! -x "$IFCONFIG" ]; then exit 1 fi -# Ensure we start with a clean slate -for tap in `$IFCONFIG link | grep tap | awk '{ print \$2 }' | sed s/://`; do - echo "Note: Destroying pre-existing tap interface $tap..." - $TUNCTL -d $tap -done - -echo "Creating $COUNT tap devices for UID: $TUID GID: $GID..." -for ((index=0; index < $COUNT; index++)); do - echo "Creating tap$index" - ifup=`$RUNQEMU_IFUP $TUID $GID $SYSROOT 2>&1` - if [ $? -ne 0 ]; then - echo "Error running tunctl: $ifup" - exit 1 - fi -done +if [ $COUNT -ge 0 ]; then + # Ensure we start with a clean slate + for tap in `$IFCONFIG link | grep tap | awk '{ print \$2 }' | sed s/://`; do + echo "Note: Destroying pre-existing tap interface $tap..." + $TUNCTL -d $tap + done + rm -f /etc/runqemu-nosudo +else + echo "Error: Incorrect count: $COUNT" + exit 1 +fi if [ $COUNT -gt 0 ]; then + echo "Creating $COUNT tap devices for UID: $TUID GID: $GID..." + for ((index=0; index < $COUNT; index++)); do + echo "Creating tap$index" + ifup=`$RUNQEMU_IFUP $TUID $GID $STAGING_BINDIR_NATIVE 2>&1` + if [ $? -ne 0 ]; then + echo "Error running tunctl: $ifup" + exit 1 + fi + done + echo "Note: For systems running NetworkManager, it's recommended" echo "Note: that the tap devices be set as unmanaged in the" echo "Note: NetworkManager.conf file. Add the following lines to" echo "Note: /etc/NetworkManager/NetworkManager.conf" echo "[keyfile]" echo "unmanaged-devices=interface-name:tap*" -fi -# The runqemu script will check for this file, and if it exists, -# will use the existing bank of tap devices without creating -# additional ones via sudo. -touch /etc/runqemu-nosudo + # The runqemu script will check for this file, and if it exists, + # will use the existing bank of tap devices without creating + # additional ones via sudo. + touch /etc/runqemu-nosudo +fi |