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authorRichard Purdie <richard.purdie@linuxfoundation.org>2011-04-20 23:24:51 +0100
committerRichard Purdie <richard.purdie@linuxfoundation.org>2011-04-21 00:29:31 +0100
commit2c2e61743c8d6620a04aa5cb534af78f51b2845e (patch)
tree769b7139eb86f49d9d78153c8e673ed8f04d9bde /scripts/runqemu-gen-tapdevs
parent0b70e298fbb2cf0a9aa1bab193a66a7edfe99e10 (diff)
downloadpoky-2c2e61743c8d6620a04aa5cb534af78f51b2845e.tar.gz
Rename the remaining poky-* scripts to oe-* or runqemu-*
(From OE-Core rev: 877b3d84597fcfc3abf5aa332019d412f2717896) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts/runqemu-gen-tapdevs')
-rw-r--r--scripts/runqemu-gen-tapdevs85
1 files changed, 85 insertions, 0 deletions
diff --git a/scripts/runqemu-gen-tapdevs b/scripts/runqemu-gen-tapdevs
new file mode 100644
index 0000000000..527c01e7b4
--- /dev/null
+++ b/scripts/runqemu-gen-tapdevs
@@ -0,0 +1,85 @@
1#!/bin/bash
2#
3# Create a "bank" of tap network devices that can be used by the
4# runqemu script. This script needs to be run as root, and will
5# use the tunctl binary from a Poky sysroot. Note: many Linux distros
6# these days still use an older version of tunctl which does not
7# support the group permissions option, hence the need to use Poky's
8# version.
9#
10# Copyright (C) 2010 Intel Corp.
11#
12# This program is free software; you can redistribute it and/or modify
13# it under the terms of the GNU General Public License version 2 as
14# published by the Free Software Foundation.
15#
16# This program is distributed in the hope that it will be useful,
17# but WITHOUT ANY WARRANTY; without even the implied warranty of
18# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19# GNU General Public License for more details.
20#
21# You should have received a copy of the GNU General Public License along
22# with this program; if not, write to the Free Software Foundation, Inc.,
23# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24
25usage() {
26 echo "Usage: sudo $0 <gid> <num> <native-sysroot-basedir>"
27 echo "Where <gid> is the numeric group id the tap devices will be owned by"
28 echo "<num> is the number of tap devices to create (0 to remove all)"
29 echo "<native-sysroot-basedir> is the path to Poky's native sysroot"
30 exit 1
31}
32
33if [ $EUID -ne 0 ]; then
34 echo "Error: This script must be run with root privileges"
35 exit
36fi
37
38if [ $# -ne 3 ]; then
39 echo "Error: Incorrect number of arguments"
40 usage
41fi
42
43GID=$1
44COUNT=$2
45SYSROOT=$3
46
47TUNCTL=$SYSROOT/usr/bin/tunctl
48if [[ ! -x "$TUNCTL" || -d "$TUNCTL" ]]; then
49 echo "Error: $TUNCTL is not an executable"
50 usage
51fi
52
53SCRIPT_DIR=`dirname $0`
54POKY_QEMU_IFUP="$SCRIPT_DIR/runqemu-ifup"
55if [ ! -x "$POKY_QEMU_IFUP" ]; then
56 echo "Error: Unable to find the runqemu-ifup script in $SCRIPT_DIR"
57 exit 1
58fi
59
60IFCONFIG=`which ifconfig`
61if [ -z "$IFCONFIG" ]; then
62 # Is it ever anywhere else?
63 IFCONFIG=/sbin/ifconfig
64fi
65
66# Ensure we start with a clean slate
67for tap in `$IFCONFIG | grep ^tap | awk '{ print \$1 }'`; do
68 echo "Note: Destroying pre-existing tap interface $tap..."
69 $TUNCTL -d $tap
70done
71
72echo "Creating $COUNT tap devices for GID $GID..."
73for ((index=0; index < $COUNT; index++)); do
74 echo "Creating tap$index"
75 ifup=`$POKY_QEMU_IFUP $GID $SYSROOT 2>&1`
76 if [ $? -ne 0 ]; then
77 echo "Error running tunctl: $ifup"
78 exit 1
79 fi
80done
81
82# The runqemu script will check for this file, and if it exists,
83# will use the existing bank of tap devices without creating
84# additional ones via sudo.
85touch /etc/poky-nosudo