selftests: mptcp: sockopt: use 'iptables-legacy' if available

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commit a5a5990c09 upstream.

IPTables commands using 'iptables-nft' fail on old kernels, at least
on v5.15 because it doesn't see the default IPTables chains:

  $ iptables -L
  iptables/1.8.2 Failed to initialize nft: Protocol not supported

As a first step before switching to NFTables, we can use iptables-legacy
if available.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: dc65fe82fb ("selftests: mptcp: add packet mark test case")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Matthieu Baerts 2023-07-04 22:44:36 +02:00 • committed by Greg Kroah-Hartman

parent bd2decac73

commit 0ab95d5ce8

1 changed files with 13 additions and 11 deletions

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tools/testing/selftests/net/mptcp/mptcp_sockopt.sh

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