From patchwork Mon Aug 19 19:45:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Matthieu Baerts (NGI0)" X-Patchwork-Id: 13768933 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 09AD31DD393; Mon, 19 Aug 2024 19:45:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724096745; cv=none; b=JCL5yQ4pFyjCEH8cBWwlMM9vgZV+1DKYiXJy+eRpJ0at2VGMtpHdlRqD0OwbzdNUGs501KekoyrY12+LwnOPeApr8CjFo4xgKAYPAgmhJPmJYZGHiPJ2SS3pY1IWTGRDB1+R4fboExecMAb7RGvzGUddTgpr1I5IbVzovYP1ROQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724096745; c=relaxed/simple; bh=el3krj0gIbWdRFoKFHJr5isBMDFRQzCj/EyzGroLrZY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=duJDlYd7257WT9tAuQYxxDvH4AeFFIpFwwt6Iy6Bd1epZ2jPKEB2edLlhoFmAfMX6gcz3qwrw9gDHXOj85X8/+k2XqsUDkOATnbkf1TXWSjduRzMEH/f2r17nYWgn7+a/wliezs0FQ7sPYvtyFRfICrPmx7K3suk/37lJ9ivtTY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mZ8Uq4EY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mZ8Uq4EY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 43226C4AF13; Mon, 19 Aug 2024 19:45:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724096744; bh=el3krj0gIbWdRFoKFHJr5isBMDFRQzCj/EyzGroLrZY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=mZ8Uq4EYocvXI63p+tYZxjxx5hRGWc8NMB4Tr0F7d2siW+V+OJ4DFP1GbD1bMLgTq XbWesBol+9AAKRl7FJ08/dXi3ezZHksrNerJyMep1qZSSB5b1kPT89Wv9bsMsro1Jr Z/4m2hoUBVZnWtiL4M8nx+zGriYqxf9J3ihWZkqNs1tGznn9SB2YSd998cf9bz+Puh umpNItZwjyyFLMraektUlDLHfZGc3AwCcNzBTB4HM0ajqwJyl2iKpBGqShcDjqGIGZ hGESVYQdkTPQDbkKiRMJOBCiA+XoCCD7AjZCFZo9VBPkZmD3U+cnegJS+ks3Pp54sS lrBMdD78HJXHA== From: "Matthieu Baerts (NGI0)" Date: Mon, 19 Aug 2024 21:45:24 +0200 Subject: [PATCH net 06/14] selftests: mptcp: join: test for flush/re-add endpoints Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240819-net-mptcp-pm-reusing-id-v1-6-38035d40de5b@kernel.org> References: <20240819-net-mptcp-pm-reusing-id-v1-0-38035d40de5b@kernel.org> In-Reply-To: <20240819-net-mptcp-pm-reusing-id-v1-0-38035d40de5b@kernel.org> To: mptcp@lists.linux.dev, Mat Martineau , Geliang Tang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, "Matthieu Baerts (NGI0)" , stable@vger.kernel.org X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2253; i=matttbe@kernel.org; h=from:subject:message-id; bh=el3krj0gIbWdRFoKFHJr5isBMDFRQzCj/EyzGroLrZY=; b=owEBbQKS/ZANAwAIAfa3gk9CaaBzAcsmYgBmw6DScjkZfQJaQTRVHr1aF5SLxUPZ9KRCi6Qc4 lsrfGRVXyWJAjMEAAEIAB0WIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZsOg0gAKCRD2t4JPQmmg c2M5D/9ZWZV2bJ/sc8iXcSDFG9UgrJMtMOqHrt3HPuSYkcRelDRlBMwgAhx5OAO2LOEQPdvWLwv ak+GdNBvdhpmS0blXW8xflRXP2yyjSQNh7FoceVtlh+RwDqbqBlmq7Krp7hTrNOrTGOPqpSX6CU uQyKeM4nbb+YpaOFPMow6Hmup0NkUsyop3usTGWW6i+rpNznxVlL49ReJRZIwGIeZQiHwl4a15x +W23roLFxcy8h29U2f5ZmHLx+c6LVgpu3DMlYumqcTbwYwXcpYupJ8hJ8oxrMRWQBz32LY2rZOD dCcb5Gf0srj5kTe56I3J8nhklNsQiVDIUkE+yDBAfEij4Fh7/ZhfbcRMhRdJuHHkvwbh3tiyNl1 0z5onPftIJkhhRfKHKySne9B83notBVhysnTS1nUd+1aHTy2fXvSHhfIwokX4sUiMAdAreiaHQw e3r+z/oI8dQqKeiImKsle+ll8YeDWq0scuyMQtykdTTobHpn01gJ8q87CgGr35+oev0R+GLqAyc lEM/R8q9YY2hLuAIOvuIO0p41P3M/mENlP5xzVAF67+Hg77HzK1rP9ZBf9EuI99HL9MWaCF8ahw ubG61dUchdd7WAuwd+Gvb06MKmA4W/f/ZfgAwAC5LHBgoj5D3DqDIs5UCgs1ehlD4bYjE0Rlb5m 1SSkwqr+Zx634Fw== X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 X-Patchwork-Delegate: kuba@kernel.org After having flushed endpoints that didn't cause the creation of new subflows, it is important to check endpoints can be re-created, re-using previously used IDs. Before the previous commit, the client would not have been able to re-create the subflow that was previously rejected. The 'Fixes' tag here below is the same as the one from the previous commit: this patch here is not fixing anything wrong in the selftests, but it validates the previous fix for an issue introduced by this commit ID. Fixes: 06faa2271034 ("mptcp: remove multi addresses and subflows in PM") Cc: stable@vger.kernel.org Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts (NGI0) --- tools/testing/selftests/net/mptcp/mptcp_join.sh | 30 +++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh index fbb0174145ad..f609c02c6123 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -3651,6 +3651,36 @@ endpoint_tests() chk_rm_nr 2 1 invert fi + # flush and re-add + if reset_with_tcp_filter "flush re-add" ns2 10.0.3.2 REJECT OUTPUT && + mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then + pm_nl_set_limits $ns1 0 2 + pm_nl_set_limits $ns2 1 2 + # broadcast IP: no packet for this address will be received on ns1 + pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal + pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow + test_linkfail=4 speed=20 \ + run_tests $ns1 $ns2 10.0.1.1 & + local tests_pid=$! + + wait_attempt_fail $ns2 + chk_subflow_nr "before flush" 1 + chk_mptcp_info subflows 0 subflows 0 + + pm_nl_flush_endpoint $ns2 + pm_nl_flush_endpoint $ns1 + wait_rm_addr $ns2 0 + ip netns exec "${ns2}" ${iptables} -D OUTPUT -s "10.0.3.2" -p tcp -j REJECT + pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow + wait_mpj $ns2 + pm_nl_add_endpoint $ns1 10.0.3.1 id 2 flags signal + wait_mpj $ns2 + mptcp_lib_kill_wait $tests_pid + + chk_join_nr 2 2 2 + chk_add_nr 2 2 + chk_rm_nr 1 0 invert + fi } # [$1: error message]