From: Florian Westphal <fw@xxxxxxxxx>
Previous patch added a new clash resolution test case.
Also use this during conntrack resize stress test in addition
to icmp ping flood.
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
.../selftests/net/netfilter/conntrack_resize.sh | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/tools/testing/selftests/net/netfilter/conntrack_resize.sh b/tools/testing/selftests/net/netfilter/conntrack_resize.sh
index aa1ba07eaf50..788cd56ea4a0 100755
--- a/tools/testing/selftests/net/netfilter/conntrack_resize.sh
+++ b/tools/testing/selftests/net/netfilter/conntrack_resize.sh
@@ -177,6 +177,22 @@ EOF
done
}
+ct_udpclash()
+{
+ local ns="$1"
+ local duration="$2"
+ local now=$(date +%s)
+ local end=$((now + duration))
+
+ [ -x udpclash ] || return
+
+ while [ $now -lt $end ]; do
+ ip netns exec "$ns" ./udpclash 127.0.0.1 $((RANDOM%65536)) > /dev/null 2>&1
+
+ now=$(date +%s)
+ done
+}
+
# dump to /dev/null. We don't want dumps to cause infinite loops
# or use-after-free even when conntrack table is altered while dumps
# are in progress.
@@ -267,6 +283,7 @@ insert_flood()
ct_pingflood "$n" "$timeout" "floodresize" &
ct_udpflood "$n" "$timeout" &
+ ct_udpclash "$n" "$timeout" &
insert_ctnetlink "$n" "$r" &
ctflush "$n" "$timeout" &
--
2.39.5
