From ef38a0aed35357d035ca587162158cd2f55b958f Mon Sep 17 00:00:00 2001 From: Chen Qi Date: Wed, 28 Aug 2013 10:52:03 +0800 Subject: runqemu-ifdown: clean up the remaining iptables rules The iptables rules for the tap interface are added by runqemu-ifup everytime we use runqemu to start a qemu target. But it's not cleaned up when runqemu exits. This patch cleans up the remaining iptables rules for the tap interface in runqemu-ifdown. [YOCTO #5047] Signed-off-by: Chen Qi Signed-off-by: Richard Purdie --- scripts/runqemu-ifdown | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'scripts') diff --git a/scripts/runqemu-ifdown b/scripts/runqemu-ifdown index 8b8c5a4a7a..8f66cfa2a9 100755 --- a/scripts/runqemu-ifdown +++ b/scripts/runqemu-ifdown @@ -50,3 +50,17 @@ if [ ! -e "$TUNCTL" ]; then fi $TUNCTL -d $TAP + +# cleanup the remaining iptables rules +IPTABLES=`which iptables 2> /dev/null` +if [ "x$IPTABLES" = "x" ]; then + IPTABLES=/sbin/iptables +fi +if [ ! -x "$IPTABLES" ]; then + echo "$IPTABLES cannot be executed" + exit 1 +fi +n=$[ (`echo $TAP | sed 's/tap//'` * 2) + 1 ] +dest=$[ (`echo $TAP | sed 's/tap//'` * 2) + 2 ] +$IPTABLES -D POSTROUTING -t nat -j MASQUERADE -s 192.168.7.$n/32 +$IPTABLES -D POSTROUTING -t nat -j MASQUERADE -s 192.168.7.$dest/32 -- cgit 1.2.3-korg