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[2a01:cb05:8918:ce00:af30:fd5b:a529:2148]) by smtp.gmail.com with ESMTPSA id s9-20020a5d5109000000b002ffbf2213d4sm20492704wrt.75.2023.05.11.07.39.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 May 2023 07:39:21 -0700 (PDT) Date: Thu, 11 May 2023 16:39:19 +0200 From: Guillaume Nault To: David Miller , Jakub Kicinski , Paolo Abeni , Eric Dumazet Cc: netdev@vger.kernel.org, David Ahern Subject: [PATCH v2 net-next 0/4] selftests: fcnal: Test SO_DONTROUTE socket option. Message-ID: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net 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