netdev - Re: [PATCH net-next 16/17] selftests: netfilter: add packetdrill based conntrack tests

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Message-ID: <20240513200314.GA3104@breakpoint.cc>
Date: Mon, 13 May 2024 22:03:14 +0200
From: Florian Westphal <fw@...len.de>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Pablo Neira Ayuso <pablo@...filter.org>,
	netfilter-devel@...r.kernel.org, davem@...emloft.net,
	netdev@...r.kernel.org, pabeni@...hat.com, edumazet@...gle.com,
	fw@...len.de
Subject: Re: [PATCH net-next 16/17] selftests: netfilter: add packetdrill
 based conntrack tests

Jakub Kicinski <kuba@...nel.org> wrote:
> Hi Florian, I installed packetdrill in the morning and the test..
> almost.. passes:

Thanks a lot!

> # packetdrill/conntrack_synack_reuse.pkt            (ipv6)                    packetdrill/conntrack_synack_reuse.pkt:33: error executing `conntrack -L -p tcp --dport 8080 2>/dev/null | grep -q SYN_RECV` command: non-zero status 1

Grrr, my fault, I used a more ...forgiving version of conntrack tools.

I bet its because of missing "-f ipv6" flag, so changing the line to
include "-f $NFCT_IP_VERSION" like in the other files should make it
work.

I intend to wait for a few months before adding more test cases to
see how stable these tests will be wrt. changes elsewhere in the stack,
there are a few other corner cases that would be nice to have coverage
for.