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runqemu: fix networking issues

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After switching from ifconfig to ip, networking stopped working. This
commit contains the following fixes:

 * set a decent broadcast address for the tap device;
 * bring up the device;
 * add the route using ip tool instead of the old route tool;

(From OE-Core rev: a286514e2311f52b54d3571dbac6d34aff39e591)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Laurentiu Palcu
2013-05-21 10:38:40 +03:00
committed by Richard Purdie
parent 40bc4ed3e5
commit 4462df6a51
1 changed files with 3 additions and 12 deletions
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15
scripts/runqemu-ifup
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@@ -80,16 +80,6 @@ if [ ! -x "$IFCONFIG" ]; then
exit 1
fi
ROUTE=`which route`
if [ "x$ROUTE" = "x" ]; then
# better than nothing...
ROUTE=/sbin/route
fi
if [ ! -x "$ROUTE" ]; then
echo "$ROUTE cannot be executed"
exit 1
fi
IPTABLES=`which iptables 2> /dev/null`
if [ "x$IPTABLES" = "x" ]; then
IPTABLES=/sbin/iptables
@@ -100,10 +90,11 @@ if [ ! -x "$IPTABLES" ]; then
fi
n=$[ (`echo $TAP | sed 's/tap//'` * 2) + 1 ]
$IFCONFIG addr add 192.168.7.$n/32 dev $TAP
$IFCONFIG addr add 192.168.7.$n/32 broadcast 192.168.7.255 dev $TAP
$IFCONFIG link set dev $TAP up
dest=$[ (`echo $TAP | sed 's/tap//'` * 2) + 2 ]
$ROUTE add -host 192.168.7.$dest $TAP
$IFCONFIG route add to 192.168.7.$dest dev $TAP
# setup NAT for tap0 interface to have internet access in QEMU
$IPTABLES -A POSTROUTING -t nat -j MASQUERADE -s 192.168.7.$n/32