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Message-ID: <cover.1683814269.git.gnault@redhat.com> Date: Thu, 11 May 2023 16:39:19 +0200 From: Guillaume Nault <gnault@...hat.com> To: David Miller <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com> Cc: netdev@...r.kernel.org, David Ahern <dsahern@...nel.org> Subject: [PATCH v2 net-next 0/4] selftests: fcnal: Test SO_DONTROUTE socket option. The objective is to cover kernel paths that use the RTO_ONLINK flag in .flowi4_tos. This way we'll be able to safely remove this flag in the future by properly setting .flowi4_scope instead. With these selftests in place, we can make sure this won't introduce regressions. For more context, the final objective is to convert .flowi4_tos to dscp_t, to ensure that ECN bits don't influence route and fib-rule lookups (see commit a410a0cf9885 ("ipv6: Define dscp_t and stop taking ECN bits into account in fib6-rules")). These selftests only cover IPv4, as SO_DONTROUTE has no effect on IPv6 sockets. v2: - Use two different nettest options for setting SO_DONTROUTE either on the server or on the client socket. - Use the above feature to run a single 'nettest -B' instance per test (instead of having two nettest processes for server and client). Guillaume Nault (4): selftests: Add SO_DONTROUTE option to nettest. selftests: fcnal: Test SO_DONTROUTE on TCP sockets. selftests: fcnal: Test SO_DONTROUTE on UDP sockets. selftests: fcnal: Test SO_DONTROUTE on raw and ping sockets. tools/testing/selftests/net/fcnal-test.sh | 87 +++++++++++++++++++++++ tools/testing/selftests/net/nettest.c | 46 +++++++++++- 2 files changed, 132 insertions(+), 1 deletion(-) -- 2.30.2
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