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authorFlorian Westphal <fw@strlen.de>2024-04-23 15:05:47 +0200
committerJakub Kicinski <kuba@kernel.org>2024-04-24 17:12:45 -0700
commitf84ab634904cc491239a5165d5d7ded0acde02d5 (patch)
treef2018713e46a470c06f23b1ba29599fc15806d7f
parentc54fa6ae35b9752f557d47f1f5df1500f5b6f2df (diff)
downloadnet-queue-f84ab634904cc491239a5165d5d7ded0acde02d5.tar.gz
selftests: netfilter: nft_flowtable.sh: re-run with random mtu sizes
Now that the test runs much faster, also re-run it with random MTU sizes for the different link legs. flowtable should pass ip fragments, if any, up to the normal forwarding path. Signed-off-by: Florian Westphal <fw@strlen.de> Link: https://lore.kernel.org/r/20240423130604.7013-5-fw@strlen.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rwxr-xr-xtools/testing/selftests/net/netfilter/nft_flowtable.sh19
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/netfilter/nft_flowtable.sh b/tools/testing/selftests/net/netfilter/nft_flowtable.sh
index d765c65c31f313..8b5a3a7e22f0c3 100755
--- a/tools/testing/selftests/net/netfilter/nft_flowtable.sh
+++ b/tools/testing/selftests/net/netfilter/nft_flowtable.sh
@@ -100,6 +100,14 @@ if ! ip -net $nsr2 link set veth1 mtu $rmtu; then
exit 1
fi
+if ! ip -net "$nsr1" link set veth1 mtu "$lmtu"; then
+ exit 1
+fi
+
+if ! ip -net "$nsr2" link set veth0 mtu "$lmtu"; then
+ exit 1
+fi
+
ip -net $ns2 link set eth0 mtu $rmtu
# transfer-net between nsr1 and nsr2.
@@ -633,4 +641,15 @@ else
ip netns exec "$nsr1" cat /proc/net/xfrm_stat 1>&2
fi
+if [ x"$1" = x ]; then
+ low=1280
+ mtu=$((65536 - low))
+ o=$(((RANDOM%mtu) + low))
+ l=$(((RANDOM%mtu) + low))
+ r=$(((RANDOM%mtu) + low))
+
+ echo "re-run with random mtus: -o $o -l $l -r $r"
+ $0 -o "$o" -l "$l" -r "$r"
+fi
+
exit $ret