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selftests: nft_flowtable.sh: monitor result file sizes

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When running nft_flowtable.sh in VM on a busy server we've found that
the time of the netcat file transfers vary wildly.

Therefore replace hardcoded 3 second sleep with the loop checking for
a change in the file sizes. Once no change in detected we test the results.

Nice side effect is that we shave 1 second sleep in the fast case
(hard-coded 3 second sleep vs two 1 second sleeps).

Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Boris Sukholitko <boris.sukholitko@broadcom.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Boris Sukholitko 2023-05-04 11:48:14 +03:00 committed by Pablo Neira Ayuso
parent 1114803c2d
commit 90ab51226d
1 changed files with 9 additions and 1 deletions
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10
tools/testing/selftests/netfilter/nft_flowtable.sh
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@ -286,7 +286,15 @@ test_tcp_forwarding_ip()
ip netns exec $nsa nc -w 4 "$dstip" "$dstport" < "$nsin" > "$ns1out" &
cpid=$!
sleep 3
sleep 1
prev="$(ls -l $ns1out $ns2out)"
sleep 1
while [[ "$prev" != "$(ls -l $ns1out $ns2out)" ]]; do
sleep 1;
prev="$(ls -l $ns1out $ns2out)"
done
if test -d /proc/"$lpid"/; then
kill $lpid