From patchwork Wed Mar 6 09:42:57 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: 778434 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 71F2B605C0; Wed, 6 Mar 2024 09:43:30 +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=1709718210; cv=none; b=WamC2QQTRIc5lwY/fQGd48IEzfnbJ/dpkI+M/wVX2IB7TXdZUpNdBbCoAKtn1Sp/gL+/ajuTiAt3Vzm+KMZIUIXRVIsJxj71iqncXMI2AlS82zEpcGh6HXQtGzI7xISFMY3TXUpKoAegD5nfa1rNBGs2uIAU0xksAAIr0bB8xVA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709718210; c=relaxed/simple; bh=mhEfkC/t/wPrEz+EOr1rK/8ja/vlTW/cYAWnHPnxTiU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=kPBHPyT9KsnKaZ1jdiSdUM7Nr8ptjzbdV0qsv9mDO2pIcDR9WyGmJCWnRQXFtRLpSjelRgyOXTK6uuTjylyQ9sa26e4t4ssTVN1WUsu4E86n8US2HQLe2+hxcv7kmrm+oKDfH/jVV2lkREDgRZuhKsrWpsCXPTvAM7AkubsmEqw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CB1U7olZ; 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="CB1U7olZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F831C43390; Wed, 6 Mar 2024 09:43:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1709718209; bh=mhEfkC/t/wPrEz+EOr1rK/8ja/vlTW/cYAWnHPnxTiU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=CB1U7olZGeRQkYLGklBXKJFC6nhlv8KNSJYweugAjyLCA57J7KL9KjbIxQGEdMTUg UwhW7KyOycVzntWlawgnldFpNmVu0M0xJ9+micxx0SBSahQwx0qd3oLpVlHcfPHiNU UQmlpp3Cq+TDhSR7qhUJHyYtOzU4IS7cOvWFVUqMsKppOVo3RR3Jy0tsSD00re/T8v PM0vdS9Ws4Jfb7ahvNA69bHzxpRLFPCICXsvqSyuPiFzR/w5G4t07bzNCpU9wsPngR FJVTMN4l9n16H5AzHxlftErheqll6BwEHB8cGd2olklH45hBwN+pvjMTzFeesVx5JF KazhiKB+dhw9g== From: "Matthieu Baerts (NGI0)" Date: Wed, 06 Mar 2024 10:42:57 +0100 Subject: [PATCH net-next v2 08/12] selftests: mptcp: connect: fix shellcheck warnings Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240306-upstream-net-next-20240304-selftests-mptcp-shared-code-shellcheck-v2-8-bc79e6e5e6a0@kernel.org> References: <20240306-upstream-net-next-20240304-selftests-mptcp-shared-code-shellcheck-v2-0-bc79e6e5e6a0@kernel.org> In-Reply-To: <20240306-upstream-net-next-20240304-selftests-mptcp-shared-code-shellcheck-v2-0-bc79e6e5e6a0@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-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, "Matthieu Baerts (NGI0)" X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=8890; i=matttbe@kernel.org; h=from:subject:message-id; bh=mhEfkC/t/wPrEz+EOr1rK/8ja/vlTW/cYAWnHPnxTiU=; b=owEBbQKS/ZANAwAIAfa3gk9CaaBzAcsmYgBl6Dqmyp8yU4+8SpRkK6bmv9oPoAVg7jN6XnGtL cvLVeJ/zyuJAjMEAAEIAB0WIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZeg6pgAKCRD2t4JPQmmg c2JbD/95NUeTKXY5/dxn4So1QV/yxWZYc7/QQ4QwXvNBch5p9p4A8VLCo/UbbMjOg+6vmRzTosI w2Ye77qu4JIn/Sy61DbKkTgeYkeMTDKc8K39RePVC7ENAHeQIGSooTchotSFIXFNRmIPIOEgf5c 5Ml26lKoOXgNLYxkhpFRi0JWJ4gezqwcAKqa0aAyeRmPTJmh+XlKmNGTfTQPCLSdxOWZhCZG2W+ 4cvJ0Su4dEd2p7+hl8+Illarzgn5qRoxeshcKAehN2ZiyTXh6eFSUFfeaC7LrQZlhnKo+5VHmqi U+MZKIiGBf9Jg06irMRPTI+htbQaaa0rcNJRQn+JkQVAct7+++BYnsQV1MRbtO5ofp2A9ub4h2N IP5agE6zNEdTblX+6wcWaDmtXQcfUtuFwCpOy+Ah/dFtGgFpiiju4vKjSUxavJNSz2jOD6vFfeX 8xmuAjRPqEq/0nMZR6wm0vBIis4CHRQuQ9r4OiFWYcftO3NzDUjZZM6Vf862AkiXdnAtbWb0vgc e3P+1Q9HaRR7DFFKlnO+EQ47wjX74ygaaHXNpdn3hR3UJ9RnwIk5yr8gvbcvAEkks3pZVikJUds kGSVAuGeFfHw0nEEtY+PZZuxcSo5+YrCm7qbycda7fAVIkXdLp5bLTunuyAN9FRo3CwmPYDCfWj h+WJ7LCdo6ham1A== X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 shellcheck recently helped to prevent issues. It is then good to fix the other harmless issues in order to spot "real" ones later. Here, two categories of warnings are now ignored: - SC2317: Command appears to be unreachable. The cleanup() function is invoked indirectly via the EXIT trap. - SC2086: Double quote to prevent globbing and word splitting. This is recommended, but the current usage is correct and there is no need to do all these modifications to be compliant with this rule. For the modifications: - SC2034: ksft_skip appears unused. - SC2181: Check exit code directly with e.g. 'if mycmd;', not indirectly with $?. - SC2004: $/${} is unnecessary on arithmetic variables. - SC2155: Declare and assign separately to avoid masking return values. - SC2166: Prefer [ p ] && [ q ] as [ p -a q ] is not well defined. - SC2059: Don't use variables in the printf format string. Use printf '..%s..' "$foo". Now this script is shellcheck (0.9.0) compliant. We can easily spot new issues. Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts (NGI0) --- tools/testing/selftests/net/mptcp/mptcp_connect.sh | 76 +++++++++++++--------- 1 file changed, 47 insertions(+), 29 deletions(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.sh b/tools/testing/selftests/net/mptcp/mptcp_connect.sh index b53ae64ec08c..0ca2960c9099 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_connect.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh @@ -1,6 +1,11 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 +# Double quotes to prevent globbing and word splitting is recommended in new +# code but we accept it, especially because there were too many before having +# address all other issues detected by shellcheck. +#shellcheck disable=SC2086 + . "$(dirname "${0}")/mptcp_lib.sh" time_start=$(date +%s) @@ -13,7 +18,6 @@ sout="" cin_disconnect="" cin="" cout="" -ksft_skip=4 capture=false timeout_poll=30 timeout_test=$((timeout_poll * 2 + 1)) @@ -129,6 +133,8 @@ ns4="" TEST_COUNT=0 TEST_GROUP="" +# This function is used in the cleanup trap +#shellcheck disable=SC2317 cleanup() { rm -f "$cin_disconnect" "$cout_disconnect" @@ -211,8 +217,9 @@ set_ethtool_flags() { local dev="$2" local flags="$3" - ip netns exec $ns ethtool -K $dev $flags 2>/dev/null - [ $? -eq 0 ] && echo "INFO: set $ns dev $dev: ethtool -K $flags" + if ip netns exec $ns ethtool -K $dev $flags 2>/dev/null; then + echo "INFO: set $ns dev $dev: ethtool -K $flags" + fi } set_random_ethtool_flags() { @@ -307,7 +314,7 @@ do_transfer() local extra_args="$7" local port - port=$((10000+$TEST_COUNT)) + port=$((10000+TEST_COUNT)) TEST_COUNT=$((TEST_COUNT+1)) if [ "$rcvbuf" -gt 0 ]; then @@ -365,12 +372,18 @@ do_transfer() nstat -n fi - local stat_synrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") - local stat_ackrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") - local stat_cookietx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent") - local stat_cookierx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv") - local stat_csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr") - local stat_csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr") + local stat_synrx_last_l + local stat_ackrx_last_l + local stat_cookietx_last + local stat_cookierx_last + local stat_csum_err_s + local stat_csum_err_c + stat_synrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") + stat_ackrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") + stat_cookietx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent") + stat_cookierx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv") + stat_csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr") + stat_csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr") timeout ${timeout_test} \ ip netns exec ${listener_ns} \ @@ -433,11 +446,16 @@ do_transfer() mptcp_lib_check_transfer $cin $sout "file received by server" rets=$? - local stat_synrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") - local stat_ackrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") - local stat_cookietx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent") - local stat_cookierx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv") - local stat_ooo_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtTCPOFOQueue") + local stat_synrx_now_l + local stat_ackrx_now_l + local stat_cookietx_now + local stat_cookierx_now + local stat_ooo_now + stat_synrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") + stat_ackrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") + stat_cookietx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent") + stat_cookierx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv") + stat_ooo_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtTCPOFOQueue") expect_synrx=$((stat_synrx_last_l)) expect_ackrx=$((stat_ackrx_last_l)) @@ -446,8 +464,8 @@ do_transfer() cookies=${cookies##*=} if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then - expect_synrx=$((stat_synrx_last_l+$connect_per_transfer)) - expect_ackrx=$((stat_ackrx_last_l+$connect_per_transfer)) + expect_synrx=$((stat_synrx_last_l+connect_per_transfer)) + expect_ackrx=$((stat_ackrx_last_l+connect_per_transfer)) fi if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then @@ -455,7 +473,7 @@ do_transfer() "${stat_synrx_now_l}" "${expect_synrx}" 1>&2 retc=1 fi - if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} -a ${stat_ooo_now} -eq 0 ]; then + if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ] && [ ${stat_ooo_now} -eq 0 ]; then if [ ${stat_ooo_now} -eq 0 ]; then printf "[ FAIL ] lower MPC ACK rx (%d) than expected (%d)\n" \ "${stat_ackrx_now_l}" "${expect_ackrx}" 1>&2 @@ -466,18 +484,20 @@ do_transfer() fi if $checksum; then - local csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr") - local csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr") + local csum_err_s + local csum_err_c + csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr") + csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr") local csum_err_s_nr=$((csum_err_s - stat_csum_err_s)) if [ $csum_err_s_nr -gt 0 ]; then - printf "[ FAIL ]\nserver got $csum_err_s_nr data checksum error[s]" + printf "[ FAIL ]\nserver got %d data checksum error[s]" ${csum_err_s_nr} rets=1 fi local csum_err_c_nr=$((csum_err_c - stat_csum_err_c)) if [ $csum_err_c_nr -gt 0 ]; then - printf "[ FAIL ]\nclient got $csum_err_c_nr data checksum error[s]" + printf "[ FAIL ]\nclient got %d data checksum error[s]" ${csum_err_c_nr} retc=1 fi fi @@ -645,7 +665,7 @@ run_test_transparent() return fi -ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF" + if ! ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF" flush ruleset table inet mangle { chain divert { @@ -656,7 +676,7 @@ table inet mangle { } } EOF - if [ $? -ne 0 ]; then + then echo "SKIP: $msg, could not load nft ruleset" mptcp_lib_fail_if_expected_feature "nft rules" mptcp_lib_result_skip "${TEST_GROUP}" @@ -671,8 +691,7 @@ EOF local_addr="0.0.0.0" fi - ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100 - if [ $? -ne 0 ]; then + if ! ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100; then ip netns exec "$listener_ns" nft flush ruleset echo "SKIP: $msg, ip $r6flag rule failed" mptcp_lib_fail_if_expected_feature "ip rule" @@ -680,8 +699,7 @@ EOF return fi - ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100 - if [ $? -ne 0 ]; then + if ! ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100; then ip netns exec "$listener_ns" nft flush ruleset ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100 echo "SKIP: $msg, ip route add local $local_addr failed" @@ -844,7 +862,7 @@ stop_if_error "Could not even run ping tests" echo -n "INFO: Using loss of $tc_loss " test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms " -reorder_delay=$(($tc_delay / 4)) +reorder_delay=$((tc_delay / 4)) if [ -z "${tc_reorder}" ]; then reorder1=$((RANDOM%10))