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| author | Jeff Dike <jdike@x86_64.user-mode-linux.org> | 2010-07-21 11:04:59 -0400 |
|---|---|---|
| committer | Richard Purdie <rpurdie@linux.intel.com> | 2010-08-20 16:20:09 +0100 |
| commit | c791544bb02e852644c55401018bc17ec1b9b40e (patch) | |
| tree | 33d510d91af137a96b1782b9fe8d901867d604f4 /scripts/poky-qemu-ifup | |
| parent | b5b3825ce6df45b16e1f3e15001da213bc8b0a55 (diff) | |
| download | openembedded-core-c791544bb02e852644c55401018bc17ec1b9b40e.tar.gz openembedded-core-c791544bb02e852644c55401018bc17ec1b9b40e.tar.bz2 openembedded-core-c791544bb02e852644c55401018bc17ec1b9b40e.zip | |
qemu: Use a TAP device instead of slirp for networking
With this patch, a persistent TAP device is set up by poky-qemu-ifup,
which is now run before qemu. The qemu command line now uses the
device that was constructed (rather than the hard-coded tap0) and it
is told not to run any networking scripts.
When qemu shuts down, poky-qemu-ifdown removes the TAP device.
sudo use - sudo is used to run poky-qemu-ifup. sudo is no longer used
to run qemu, as qemu no longer needs privileges to set up networking.
poky-qemu-ifdown is run without privileges, as you can remove a TAP
device which you own.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Diffstat (limited to 'scripts/poky-qemu-ifup')
| -rwxr-xr-x | scripts/poky-qemu-ifup | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/scripts/poky-qemu-ifup b/scripts/poky-qemu-ifup index cb1891e271..e7f689d251 100755 --- a/scripts/poky-qemu-ifup +++ b/scripts/poky-qemu-ifup @@ -17,6 +17,12 @@ # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +USER=$1 + +TUNCTL=`which tunctl` +[ "$TUNCTL" = "" ] && TUNCTL=/usr/sbin/tunctl + +TAP=`$TUNCTL -b -u $USER` IFCONFIG=`which ifconfig` if [ "x$IFCONFIG" = "x" ]; then @@ -24,7 +30,7 @@ if [ "x$IFCONFIG" = "x" ]; then IFCONFIG=/sbin/ifconfig fi -$IFCONFIG tap0 192.168.7.1 +$IFCONFIG $TAP 192.168.7.1 # setup NAT for tap0 interface to have internet access in QEMU IPTABLES=`which iptables` @@ -35,3 +41,5 @@ fi $IPTABLES -A POSTROUTING -t nat -j MASQUERADE -s 192.168.7.0/24 echo 1 > /proc/sys/net/ipv4/ip_forward $IPTABLES -P FORWARD ACCEPT + +echo $TAP |