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authorRichard Purdie <richard.purdie@linuxfoundation.org>2011-04-20 15:44:10 (GMT)
committerRichard Purdie <richard.purdie@linuxfoundation.org>2011-04-20 23:29:29 (GMT)
commit08127d444e05d8d33ce39abdce677655bd4766ea (patch)
tree926947a62cc4b1cbed4afc31a717305de9b1c57d /scripts/runqemu-ifup
parent46d0cc3dc88307d69a7884c0e5c79e0c8d5e4dc7 (diff)
downloadpoky-08127d444e05d8d33ce39abdce677655bd4766ea.tar.gz
Rename poky-qemu to runqemu
(From OE-Core rev: 7687d91f73f4a116593315b3b1488ac3f0904905) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts/runqemu-ifup')
-rwxr-xr-xscripts/runqemu-ifup95
1 files changed, 95 insertions, 0 deletions
diff --git a/scripts/runqemu-ifup b/scripts/runqemu-ifup
new file mode 100755
index 0000000..c963af5
--- /dev/null
+++ b/scripts/runqemu-ifup
@@ -0,0 +1,95 @@
1#!/bin/bash
2#
3# QEMU network interface configuration script. This utility needs to
4# be run as root, and will use the tunctl binary from a Poky sysroot.
5# Note: many Linux distros these days still use an older version of
6# tunctl which does not support the group permissions option, hence
7# the need to use Poky's version.
8#
9# If you find yourself calling this script a lot, you can add the
10# the following to your /etc/sudoers file to be able to run this
11# command without entering your password each time:
12#
13# <my-username> ALL=NOPASSWD: /path/to/runqemu-ifup
14# <my-username> ALL=NOPASSWD: /path/to/runqemu-ifdown
15#
16# If you'd like to create a bank of tap devices at once, you should use
17# the poky-gen-tapdevs script instead. If tap devices are set up using
18# that script, the runqemu script will never end up calling this
19# script.
20#
21# Copyright (c) 2006-2010 Intel Corp.
22#
23# This program is free software; you can redistribute it and/or modify
24# it under the terms of the GNU General Public License version 2 as
25# published by the Free Software Foundation.
26#
27# This program is distributed in the hope that it will be useful,
28# but WITHOUT ANY WARRANTY; without even the implied warranty of
29# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30# GNU General Public License for more details.
31#
32# You should have received a copy of the GNU General Public License along
33# with this program; if not, write to the Free Software Foundation, Inc.,
34# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
35
36usage() {
37 echo "sudo $(basename $0) <gid> <native-sysroot-basedir>"
38}
39
40if [ $EUID -ne 0 ]; then
41 echo "Error: This script (runqemu-ifup) must be run with root privileges"
42 exit 1
43fi
44
45if [ $# -ne 2 ]; then
46 usage
47 exit 1
48fi
49
50GROUP="-g $1"
51NATIVE_SYSROOT_DIR=$2
52
53TUNCTL=$NATIVE_SYSROOT_DIR/usr/bin/tunctl
54if [ ! -x "$TUNCTL" ]; then
55 echo "Error: Unable to find tunctl binary in '$NATIVE_SYSROOT_DIR/usr/bin'"
56 exit 1
57fi
58
59TAP=`$TUNCTL -b $GROUP 2>&1`
60STATUS=$?
61if [ $STATUS -ne 0 ]; then
62 echo "tunctl failed:"
63 echo $TAP
64 exit 1
65fi
66
67IFCONFIG=`which ifconfig`
68if [ "x$IFCONFIG" = "x" ]; then
69 # better than nothing...
70 IFCONFIG=/sbin/ifconfig
71fi
72
73ROUTE=`which route`
74if [ "x$ROUTE" = "x" ]; then
75 # better than nothing...
76 ROUTE=/sbin/route
77fi
78
79n=$[ (`echo $TAP | sed 's/tap//'` * 2) + 1 ]
80$IFCONFIG $TAP 192.168.7.$n
81
82dest=$[ (`echo $TAP | sed 's/tap//'` * 2) + 2 ]
83$ROUTE add -host 192.168.7.$dest $TAP
84
85# setup NAT for tap0 interface to have internet access in QEMU
86IPTABLES=`which iptables`
87if [ "x$IPTABLES" = "x" ]; then
88 IPTABLES=/sbin/iptables
89fi
90
91$IPTABLES -A POSTROUTING -t nat -j MASQUERADE -s 192.168.7.0/24
92echo 1 > /proc/sys/net/ipv4/ip_forward
93$IPTABLES -P FORWARD ACCEPT
94
95echo $TAP