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selftests: netfilter: conntrack_resize.sh: also use udpclash tool

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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@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2025-06-27 16:27:52 +02:00 committed by Pablo Neira Ayuso
parent 78a5883635
commit aa085ea1a6
1 changed files with 17 additions and 0 deletions
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17
tools/testing/selftests/net/netfilter/conntrack_resize.sh
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@ -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" &