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2022-01-06selftests: netfilter: switch to socat for tests using -q optionHangbin Liu1-4/+5
The nc cmd(nmap-ncat) that distributed with Fedora/Red Hat does not have option -q. This make some tests failed with: nc: invalid option -- 'q' Let's switch to socat which is far more dependable. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-01-07selftests: netfilter: add selftest for ipip pmtu discovery with enabled ↵Florian Westphal1-0/+206
connection tracking Convert Christians bug description into a reproducer. Cc: Shuah Khan <shuah@kernel.org> Reported-by: Christian Perle <christian.perle@secunet.com> Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>