poky/scripts/poky-qemu-ifdown
Scott Garman ba5e0b9531 Make poky-qemu and related scripts work with arbitrary SDK locations
* No longer assume SDK toolchains are installed in /opt/poky
* [BUGFIX #568] where specifying paths to both the kernel and fs
  image caused an error due to POKY_NATIVE_SYSROOT never being
  set, triggering failure of poky-qemu-ifup/ifdown
* Cosmetic improvements to usage() functions by using basename

Signed-off-by: Scott Garman <scott.a.garman@intel.com>
2010-12-09 15:00:45 +00:00

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#!/bin/bash
#
# QEMU network configuration script to bring down tap devices. This
# utility needs to be run as root, and will use the tunctl binary
# from a Poky sysroot.
#
# 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:
#
# <my-username> ALL=NOPASSWD: /path/to/poky-qemu-ifup
# <my-username> ALL=NOPASSWD: /path/to/poky-qemu-ifdown
#
# Copyright (c) 2006-2010 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.
#
# 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.
usage() {
echo "sudo $(basename $0) <tap-dev> <native-sysroot-basedir>"
}
if [ $EUID -ne 0 ]; then
echo "Error: This script (poky-qemu-ifdown) must be run with root privileges"
exit 1
fi
if [ $# -ne 2 ]; then
usage
exit 1
fi
TAP=$1
NATIVE_SYSROOT_DIR=$2
TUNCTL=$NATIVE_SYSROOT_DIR/usr/bin/tunctl
if [ ! -e "$TUNCTL" ]; then
echo "Error: Unable to find tunctl binary in '$NATIVE_SYSROOT_DIR/usr/bin'"
exit 1
fi
$TUNCTL -d $TAP