From patchwork Sun Oct 31 16:00:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Taehee Yoo X-Patchwork-Id: 12595279 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36D71C433F5 for ; Sun, 31 Oct 2021 16:00:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1929760E0B for ; Sun, 31 Oct 2021 16:00:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230089AbhJaQDD (ORCPT ); Sun, 31 Oct 2021 12:03:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41650 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230125AbhJaQC6 (ORCPT ); Sun, 31 Oct 2021 12:02:58 -0400 Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39F7FC061764 for ; Sun, 31 Oct 2021 09:00:26 -0700 (PDT) Received: by mail-pg1-x535.google.com with SMTP id s136so14946710pgs.4 for ; Sun, 31 Oct 2021 09:00:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=PjP5t+ug8aGyE6GKbeIv41lnjqyFYDQjMBn4CvV6jaA=; b=PqyITiCbR/8rdfrkk7uQVNWr42WWvOcE5CtILAvO4aAPoki62sQ7ZlpGeUTf3bwdGV 70S2dyYjNGNX0VzqyXyaUD4N1hozdteS3TpwcpBcYth2N1jwCCQVLF6BZx+LI22/kuyU VcyQIoR4svNOQDIVcDi54qn/BDn/b9cAUknRYyRoi75mzJDlFIJqpQbu20bvwbqK/X0F NYZpLWhKEME6NKfkY9qy7GmDraJMMu3hdHY2vi5CEfXizv0erRTOBsJ9ARoWXlKNuZWc ezZIVD4yrhx8vbuqYZSUxDeiqY3OzRhPKBZ0Ru2KXhpIolk4vztPCGX8+ktQQpJsH6V2 /I4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=PjP5t+ug8aGyE6GKbeIv41lnjqyFYDQjMBn4CvV6jaA=; b=vmyQEf7V4kFg9RZkbPRM4A3v5RSm++jwo8eQImU99E2BA41Yqd6aygiQeD9Tmjila2 AqfrAdwI1mamPOwWUKdkMML9uo9f7zmg3KRiIQNRuTDzRdRS0UuYELRvAbRi6ocrQeAL P4BshhzXDqDo0+VALU9jl/svCGI6PYXdlnpXA64qRT15V5dsp+YrDL2lkgUHSXIp31Et pmjEP5f53sK+XtLvNzByIeDHHVhrn5hmJE/7/ZbVeO+yPY9x36kPJ/t7wDcHvMynxm8g ko70YezIYUxUxns4J8371kTv07Sl8YvmJilgS/5x35yvttMauxMWC1VsHUmunQMs9SaP TzBg== X-Gm-Message-State: AOAM5331FAGPUw6UqCcuFdD/rP9Ow79gT4qMd0xtiIhCte8lEzdQ6vTJ 7uOEpqJiz15qlG8KFV8BiKo= X-Google-Smtp-Source: ABdhPJxB3bOQAfvHzIDXjWIkSPq03IvJiap9UCi1NaafA/SoDgJCQv4PTUhaBByBnvN4O7LPAxqyEg== X-Received: by 2002:a65:6643:: with SMTP id z3mr17934110pgv.16.1635696025646; Sun, 31 Oct 2021 09:00:25 -0700 (PDT) Received: from localhost.localdomain ([49.173.165.50]) by smtp.gmail.com with ESMTPSA id 1sm12297943pfl.133.2021.10.31.09.00.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 31 Oct 2021 09:00:25 -0700 (PDT) From: Taehee Yoo To: davem@davemloft.net, kuba@kernel.org, dsahern@kernel.org, netdev@vger.kernel.org Cc: dkirjanov@suse.de, ap420073@gmail.com Subject: [PATCH net-next v7 5/5] selftests: add amt interface selftest script Date: Sun, 31 Oct 2021 16:00:06 +0000 Message-Id: <20211031160006.3367-6-ap420073@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211031160006.3367-1-ap420073@gmail.com> References: <20211031160006.3367-1-ap420073@gmail.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org This is selftest script for amt interface. This script includes basic forwarding scenarion and torture scenario. Signed-off-by: Taehee Yoo --- v5: - Initial patch. v5 -> v6: - No change. v6 -> v7: - No change. tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/amt.sh | 284 +++++++++++++++++++++++++++ tools/testing/selftests/net/config | 1 + 3 files changed, 286 insertions(+) create mode 100644 tools/testing/selftests/net/amt.sh diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile index 492b273743b4..d27c98a32244 100644 --- a/tools/testing/selftests/net/Makefile +++ b/tools/testing/selftests/net/Makefile @@ -22,6 +22,7 @@ TEST_PROGS += devlink_port_split.py TEST_PROGS += drop_monitor_tests.sh TEST_PROGS += vrf_route_leaking.sh TEST_PROGS += bareudp.sh +TEST_PROGS += amt.sh TEST_PROGS += unicast_extensions.sh TEST_PROGS += udpgro_fwd.sh TEST_PROGS += veth.sh diff --git a/tools/testing/selftests/net/amt.sh b/tools/testing/selftests/net/amt.sh new file mode 100644 index 000000000000..75528788cb95 --- /dev/null +++ b/tools/testing/selftests/net/amt.sh @@ -0,0 +1,284 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 + +# Author: Taehee Yoo +# +# This script evaluates the AMT driver. +# There are four network-namespaces, LISTENER, SOURCE, GATEWAY, RELAY. +# The role of LISTENER is to listen multicast traffic. +# In order to do that, it send IGMP group join message. +# The role of SOURCE is to send multicast traffic to listener. +# The role of GATEWAY is to work Gateway role of AMT interface. +# The role of RELAY is to work Relay role of AMT interface. +# +# +# +------------------------+ +# | LISTENER netns | +# | | +# | +------------------+ | +# | | l_gw | | +# | | 192.168.0.2/24 | | +# | | 2001:db8::2/64 | | +# | +------------------+ | +# | . | +# +------------------------+ +# . +# . +# +-----------------------------------------------------+ +# | . GATEWAY netns | +# | . | +# |+---------------------------------------------------+| +# || . br0 || +# || +------------------+ +------------------+ || +# || | gw_l | | amtg | || +# || | 192.168.0.1/24 | +--------+---------+ || +# || | 2001:db8::1/64 | | || +# || +------------------+ | || +# |+-------------------------------------|-------------+| +# | | | +# | +--------+---------+ | +# | | gw_relay | | +# | | 10.0.0.1/24 | | +# | +------------------+ | +# | . | +# +-----------------------------------------------------+ +# . +# . +# +-----------------------------------------------------+ +# | RELAY netns . | +# | +------------------+ | +# | | relay_gw | | +# | | 10.0.0.2/24 | | +# | +--------+---------+ | +# | | | +# | | | +# | +------------------+ +--------+---------+ | +# | | relay_src | | amtr | | +# | | 172.17.0.1/24 | +------------------+ | +# | | 2001:db8:3::1/64 | | +# | +------------------+ | +# | . | +# | . | +# +-----------------------------------------------------+ +# . +# . +# +------------------------+ +# | . | +# | +------------------+ | +# | | src_relay | | +# | | 172.17.0.2/24 | | +# | | 2001:db8:3::2/64 | | +# | +------------------+ | +# | SOURCE netns | +# +------------------------+ +#============================================================================== + +readonly LISTENER=$(mktemp -u listener-XXXXXXXX) +readonly GATEWAY=$(mktemp -u gateway-XXXXXXXX) +readonly RELAY=$(mktemp -u relay-XXXXXXXX) +readonly SOURCE=$(mktemp -u source-XXXXXXXX) +ERR=4 +err=0 + +exit_cleanup() +{ + for ns in "$@"; do + ip netns delete "${ns}" 2>/dev/null || true + done + + exit $ERR +} + +create_namespaces() +{ + ip netns add "${LISTENER}" || exit_cleanup + ip netns add "${GATEWAY}" || exit_cleanup "${LISTENER}" + ip netns add "${RELAY}" || exit_cleanup "${LISTENER}" "${GATEWAY}" + ip netns add "${SOURCE}" || exit_cleanup "${LISTENER}" "${GATEWAY}" \ + "${RELAY}" +} + +# The trap function handler +# +exit_cleanup_all() +{ + exit_cleanup "${LISTENER}" "${GATEWAY}" "${RELAY}" "${SOURCE}" +} + +setup_interface() +{ + for ns in "${LISTENER}" "${GATEWAY}" "${RELAY}" "${SOURCE}"; do + ip -netns "${ns}" link set dev lo up + done; + + ip link add l_gw type veth peer name gw_l + ip link add gw_relay type veth peer name relay_gw + ip link add relay_src type veth peer name src_relay + + ip link set l_gw netns "${LISTENER}" up + ip link set gw_l netns "${GATEWAY}" up + ip link set gw_relay netns "${GATEWAY}" up + ip link set relay_gw netns "${RELAY}" up + ip link set relay_src netns "${RELAY}" up + ip link set src_relay netns "${SOURCE}" up mtu 1400 + + ip netns exec "${LISTENER}" ip a a 192.168.0.2/24 dev l_gw + ip netns exec "${LISTENER}" ip r a default via 192.168.0.1 dev l_gw + ip netns exec "${LISTENER}" ip a a 2001:db8::2/64 dev l_gw + ip netns exec "${LISTENER}" ip r a default via 2001:db8::1 dev l_gw + ip netns exec "${LISTENER}" ip a a 239.0.0.1/32 dev l_gw autojoin + ip netns exec "${LISTENER}" ip a a ff0e::5:6/128 dev l_gw autojoin + + ip netns exec "${GATEWAY}" ip a a 192.168.0.1/24 dev gw_l + ip netns exec "${GATEWAY}" ip a a 2001:db8::1/64 dev gw_l + ip netns exec "${GATEWAY}" ip a a 10.0.0.1/24 dev gw_relay + ip netns exec "${GATEWAY}" ip link add br0 type bridge + ip netns exec "${GATEWAY}" ip link set br0 up + ip netns exec "${GATEWAY}" ip link set gw_l master br0 + ip netns exec "${GATEWAY}" ip link set gw_l up + ip netns exec "${GATEWAY}" ip link add amtg master br0 type amt \ + mode gateway local 10.0.0.1 discovery 10.0.0.2 dev gw_relay \ + gateway_port 2268 relay_port 2268 + ip netns exec "${RELAY}" ip a a 10.0.0.2/24 dev relay_gw + ip netns exec "${RELAY}" ip link add amtr type amt mode relay \ + local 10.0.0.2 dev relay_gw relay_port 2268 max_tunnels 4 + ip netns exec "${RELAY}" ip a a 172.17.0.1/24 dev relay_src + ip netns exec "${RELAY}" ip a a 2001:db8:3::1/64 dev relay_src + ip netns exec "${SOURCE}" ip a a 172.17.0.2/24 dev src_relay + ip netns exec "${SOURCE}" ip a a 2001:db8:3::2/64 dev src_relay + ip netns exec "${SOURCE}" ip r a default via 172.17.0.1 dev src_relay + ip netns exec "${SOURCE}" ip r a default via 2001:db8:3::1 dev src_relay + ip netns exec "${RELAY}" ip link set amtr up + ip netns exec "${GATEWAY}" ip link set amtg up +} + +setup_sysctl() +{ + ip netns exec "${RELAY}" sysctl net.ipv4.ip_forward=1 -w -q +} + +setup_iptables() +{ + ip netns exec "${RELAY}" iptables -t mangle -I PREROUTING \ + -d 239.0.0.1 -j TTL --ttl-set 2 + ip netns exec "${RELAY}" ip6tables -t mangle -I PREROUTING \ + -j HL --hl-set 2 +} + +setup_mcast_routing() +{ + ip netns exec "${RELAY}" smcrouted + ip netns exec "${RELAY}" smcroutectl a relay_src \ + 172.17.0.2 239.0.0.1 amtr + ip netns exec "${RELAY}" smcroutectl a relay_src \ + 2001:db8:3::2 ff0e::5:6 amtr +} + +test_remote_ip() +{ + REMOTE=$(ip netns exec "${GATEWAY}" \ + ip -d -j link show amtg | jq .[0].linkinfo.info_data.remote) + if [ $REMOTE == "\"10.0.0.2\"" ]; then + printf "TEST: %-60s [ OK ]\n" "amt discovery" + else + printf "TEST: %-60s [FAIL]\n" "amt discovery" + ERR=1 + fi +} + +send_mcast_torture4() +{ + ip netns exec "${SOURCE}" bash -c \ + 'cat /dev/urandom | head -c 1G | nc -w 1 -u 239.0.0.1 4001' +} + + +send_mcast_torture6() +{ + ip netns exec "${SOURCE}" bash -c \ + 'cat /dev/urandom | head -c 1G | nc -w 1 -u ff0e::5:6 6001' +} + +check_features() +{ + ip link help 2>&1 | grep -q amt + if [ $? -ne 0 ]; then + echo "Missing amt support in iproute2" >&2 + exit_cleanup + fi +} + +test_ipv4_forward() +{ + RESULT4=$(ip netns exec "${LISTENER}" nc -w 1 -l -u 239.0.0.1 4000) + if [ "$RESULT4" == "172.17.0.2" ]; then + printf "TEST: %-60s [ OK ]\n" "IPv4 amt multicast forwarding" + exit 0 + else + printf "TEST: %-60s [FAIL]\n" "IPv4 amt multicast forwarding" + exit 1 + fi +} + +test_ipv6_forward() +{ + RESULT6=$(ip netns exec "${LISTENER}" nc -w 1 -l -u ff0e::5:6 6000) + if [ "$RESULT6" == "2001:db8:3::2" ]; then + printf "TEST: %-60s [ OK ]\n" "IPv6 amt multicast forwarding" + exit 0 + else + printf "TEST: %-60s [FAIL]\n" "IPv6 amt multicast forwarding" + exit 1 + fi +} + +send_mcast4() +{ + sleep 2 + ip netns exec "${SOURCE}" bash -c \ + 'echo 172.17.0.2 | nc -w 1 -u 239.0.0.1 4000' & +} + +send_mcast6() +{ + sleep 2 + ip netns exec "${SOURCE}" bash -c \ + 'echo 2001:db8:3::2 | nc -w 1 -u ff0e::5:6 6000' & +} + +check_features + +create_namespaces + +set -e +trap exit_cleanup_all EXIT + +setup_interface +setup_sysctl +setup_iptables +setup_mcast_routing +test_remote_ip +test_ipv4_forward & +pid=$! +send_mcast4 +wait $pid || err=$? +if [ $err -eq 1 ]; then + ERR=1 +fi +test_ipv6_forward & +pid=$! +send_mcast6 +wait $pid || err=$? +if [ $err -eq 1 ]; then + ERR=1 +fi +send_mcast_torture4 +printf "TEST: %-60s [ OK ]\n" "IPv4 amt traffic forwarding torture" +send_mcast_torture6 +printf "TEST: %-60s [ OK ]\n" "IPv6 amt traffic forwarding torture" +sleep 5 +if [ "${ERR}" -eq 1 ]; then + echo "Some tests failed." >&2 +else + ERR=0 +fi diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config index 86ab429fe7f3..ead7963b9bf0 100644 --- a/tools/testing/selftests/net/config +++ b/tools/testing/selftests/net/config @@ -44,3 +44,4 @@ CONFIG_NET_ACT_MIRRED=m CONFIG_BAREUDP=m CONFIG_IPV6_IOAM6_LWTUNNEL=y CONFIG_CRYPTO_SM4=y +CONFIG_AMT=m