From patchwork Thu Nov 16 00:31:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mat Martineau X-Patchwork-Id: 13457442 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 A4ABE17C3; Thu, 16 Nov 2023 00:31:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GRbQROGj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 057A5C433C9; Thu, 16 Nov 2023 00:31:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1700094711; bh=CRr6xgS0q1z1+dLwGuO1WG/EpJNE8+a8WdjhBS61h8s=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=GRbQROGjgCkJx0oGSH7iAXEXfRLVgEGhMdEW0buPKIdUF49IvGKrwqam/VewGwDMC OSKkPeqe/97NI8xUD5vDafCB0QkM86PlHYVdraq5G6bKnL0h8bcwNGXeaw6De4odeW uRzPZMBMNaYWCOwXI1kYeMJhsrCzvB5KZQ117EXpOL5BIcDpWut5YuCM7Cahl70oux DHVMZh7K2sVRVr6pmKn9m7DVb2LKvpVLRMTckImEe5F2DstE/1CIv35oF7R2in34Jk 3i2fgW0PcMA2mlcwQ1JRWChIdGjXZ50HhaNXDGeb0fQ2F6oCaJBUlWKwK6NksI84hW 0HpDA4ptFJICg== From: Mat Martineau Date: Wed, 15 Nov 2023 16:31:31 -0800 Subject: [PATCH net-next v3 03/15] selftests: mptcp: add chk_subflows_total helper Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231115-send-net-next-2023107-v3-3-1ef58145a882@kernel.org> References: <20231115-send-net-next-2023107-v3-0-1ef58145a882@kernel.org> In-Reply-To: <20231115-send-net-next-2023107-v3-0-1ef58145a882@kernel.org> To: Matthieu Baerts , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: netdev@vger.kernel.org, mptcp@lists.linux.dev, Mat Martineau , Geliang Tang X-Mailer: b4 0.12.4 X-Patchwork-Delegate: kuba@kernel.org From: Geliang Tang This patch adds a new helper chk_subflows_total(), in it use the newly added counter mptcpi_subflows_total to get the "correct" amount of subflows, including the initial one. To be compatible with old 'ss' or kernel versions not supporting this counter, get the total subflows by listing TCP connections that are MPTCP subflows: ss -ti state state established state syn-sent state syn-recv | grep -c tcp-ulp-mptcp. Reviewed-by: Matthieu Baerts Signed-off-by: Geliang Tang Signed-off-by: Mat Martineau --- tools/testing/selftests/net/mptcp/mptcp_join.sh | 41 ++++++++++++++++++++++++- 1 file changed, 40 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh index f064803071f1..2130e3b7790f 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -1867,7 +1867,7 @@ chk_mptcp_info() local cnt2 local dump_stats - print_check "mptcp_info ${info1:0:8}=$exp1:$exp2" + print_check "mptcp_info ${info1:0:15}=$exp1:$exp2" cnt1=$(ss -N $ns1 -inmHM | mptcp_lib_get_info_value "$info1" "$info1") cnt2=$(ss -N $ns2 -inmHM | mptcp_lib_get_info_value "$info2" "$info2") @@ -1888,6 +1888,41 @@ chk_mptcp_info() fi } +# $1: subflows in ns1 ; $2: subflows in ns2 +# number of all subflows, including the initial subflow. +chk_subflows_total() +{ + local cnt1 + local cnt2 + local info="subflows_total" + + # if subflows_total counter is supported, use it: + if [ -n "$(ss -N $ns1 -inmHM | mptcp_lib_get_info_value $info $info)" ]; then + chk_mptcp_info $info $1 $info $2 + return + fi + + print_check "$info $1:$2" + + # if not, count the TCP connections that are in fact MPTCP subflows + cnt1=$(ss -N $ns1 -ti state established state syn-sent state syn-recv | + grep -c tcp-ulp-mptcp) + cnt2=$(ss -N $ns2 -ti state established state syn-sent state syn-recv | + grep -c tcp-ulp-mptcp) + + if [ "$1" != "$cnt1" ] || [ "$2" != "$cnt2" ]; then + fail_test "got subflows $cnt1:$cnt2 expected $1:$2" + dump_stats=1 + else + print_ok + fi + + if [ "$dump_stats" = 1 ]; then + ss -N $ns1 -ti + ss -N $ns2 -ti + fi +} + chk_link_usage() { local ns=$1 @@ -3431,10 +3466,12 @@ userspace_tests() chk_join_nr 1 1 1 chk_add_nr 1 1 chk_mptcp_info subflows 1 subflows 1 + chk_subflows_total 2 2 chk_mptcp_info add_addr_signal 1 add_addr_accepted 1 userspace_pm_rm_sf_addr_ns1 10.0.2.1 10 chk_rm_nr 1 1 invert chk_mptcp_info subflows 0 subflows 0 + chk_subflows_total 1 1 kill_events_pids wait $tests_pid fi @@ -3451,9 +3488,11 @@ userspace_tests() userspace_pm_add_sf 10.0.3.2 20 chk_join_nr 1 1 1 chk_mptcp_info subflows 1 subflows 1 + chk_subflows_total 2 2 userspace_pm_rm_sf_addr_ns2 10.0.3.2 20 chk_rm_nr 1 1 chk_mptcp_info subflows 0 subflows 0 + chk_subflows_total 1 1 kill_events_pids wait $tests_pid fi