From patchwork Sat Aug 12 00:30:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kui-Feng Lee X-Patchwork-Id: 13351598 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 9D56D2592 for ; Sat, 12 Aug 2023 00:30:57 +0000 (UTC) Received: from mail-yw1-x112c.google.com (mail-yw1-x112c.google.com [IPv6:2607:f8b0:4864:20::112c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5F4FD2686 for ; Fri, 11 Aug 2023 17:30:53 -0700 (PDT) Received: by mail-yw1-x112c.google.com with SMTP id 00721157ae682-58419517920so26707297b3.0 for ; Fri, 11 Aug 2023 17:30:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1691800252; x=1692405052; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ujcv+EoTY4kLHVpY2ZdtWCzr8baRLX1ANim8dqftgGs=; b=MQ4iT+glAF6R6aGeeo5uBdrrUtXv0l1eN0TcXNreIHZDHUXhdk6O5Rr5rq2eJgCcBf s33ea7mwHj/WlkeHKy6jSfoAvoY80jBTJu/noue/nYeAIq9CH6wqwgCbuIu0xwd2o6VP Cwo0n+nFJobjO1meyjjojXNpyp3o0Za0yscsoo3glQdrhTbucn3idpcnW/+sFZVXJRj0 T/7CitbTvlmCGrd5SO2nITYE8Q3WW8rpc5h7ZWHz0/ieOQLb2Htv1vjxJELDLF2EvC+Q jY2zll16NAoF+Q8DRVRBqNwtRfrNnrHO+unceM3A4hA0kB5oI72LV6VncGpuQBbSbeHr sz7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691800252; x=1692405052; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ujcv+EoTY4kLHVpY2ZdtWCzr8baRLX1ANim8dqftgGs=; b=HcBd4z9Z3rLqBh9NUHL+QITgUksGYrxSdT41R2dcaPFaJ8yZYmInGYH4Bw3GxucT6h vcjgV+dhnQ8FOSjOaaliTIyuklZ4KkMY0KAPDw5ECQe2QujGq4DwaoUx8uD5sWj1Ilnk fyi5otC+vZtxafy4NN5XGVMIVY7jlBoAnlQr4CPSLcvKSvyZfKlljfDQK/CznoKKxW2b ZSFotfeBLn57Oty29fbX8OljHCqyTnGh69Ele+oGnBaSU8O3t5463cYm9EN02u98i/HK Qugsu/VoOtaMQRedytUNaZhH6KhGNuyJd29zbqQgn1eboRmLxtuOUYSVDn1mRiJHJrO+ TiRg== X-Gm-Message-State: AOJu0Yxp9NczObPg5eK9dt71ZjEmNbTh4RtzvJF5XQNbgri34b3VbOJE yFt6H1u6c+JJ6IbMBraEEzY= X-Google-Smtp-Source: AGHT+IFCKiwYq0Mb9LIlHCeR/cHLDE5ux8+7HXktNELcLZ4CGgiffHf0GHRU9dgl5bs9EE0N+PfNYg== X-Received: by 2002:a0d:d5d1:0:b0:570:6d74:21d5 with SMTP id x200-20020a0dd5d1000000b005706d7421d5mr3257012ywd.13.1691800252526; Fri, 11 Aug 2023 17:30:52 -0700 (PDT) Received: from kickker.attlocal.net ([2600:1700:6cf8:1240:680f:f8a3:c49b:84db]) by smtp.gmail.com with ESMTPSA id n11-20020a0dcb0b000000b0058419c57c66sm1319648ywd.4.2023.08.11.17.30.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Aug 2023 17:30:52 -0700 (PDT) From: thinker.li@gmail.com To: dsahern@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, martin.lau@linux.dev, kernel-team@meta.com, yhs@meta.com Cc: sinquersw@gmail.com, kuifeng@meta.com, Kui-Feng Lee Subject: [PATCH net-next v7 2/2] selftests: fib_tests: Add a test case for IPv6 garbage collection Date: Fri, 11 Aug 2023 17:30:47 -0700 Message-Id: <20230812003047.447772-3-thinker.li@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230812003047.447772-1-thinker.li@gmail.com> References: <20230812003047.447772-1-thinker.li@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Kui-Feng Lee Add 1000 IPv6 routes with expiration time (w/ and w/o additional 5000 permanet routes in the background.) Wait for a few seconds to make sure they are removed correctly. The expected output of the test looks like the following example. > Fib6 garbage collection test > TEST: ipv6 route garbage collection [ OK ] Signed-off-by: Kui-Feng Lee Reviewed-by: David Ahern --- tools/testing/selftests/net/fib_tests.sh | 72 +++++++++++++++++++++++- 1 file changed, 69 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh index 35d89dfa6f11..c14ad6e75c1e 100755 --- a/tools/testing/selftests/net/fib_tests.sh +++ b/tools/testing/selftests/net/fib_tests.sh @@ -9,13 +9,16 @@ ret=0 ksft_skip=4 # all tests in this script. Can be overridden with -t option -TESTS="unregister down carrier nexthop suppress ipv6_notify ipv4_notify ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr ipv4_mangle ipv6_mangle ipv4_bcast_neigh" +TESTS="unregister down carrier nexthop suppress ipv6_notify ipv4_notify \ + ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics \ + ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr \ + ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test" VERBOSE=0 PAUSE_ON_FAIL=no PAUSE=no -IP="ip -netns ns1" -NS_EXEC="ip netns exec ns1" +IP="$(which ip) -netns ns1" +NS_EXEC="$(which ip) netns exec ns1" which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping) @@ -747,6 +750,68 @@ fib_notify_test() cleanup &> /dev/null } +fib6_gc_test() +{ + setup + + echo + echo "Fib6 garbage collection test" + set -e + + EXPIRE=3 + + # Check expiration of routes every $EXPIRE seconds (GC) + $NS_EXEC sysctl -wq net.ipv6.route.gc_interval=$EXPIRE + + $IP link add dummy_10 type dummy + $IP link set dev dummy_10 up + $IP -6 address add 2001:10::1/64 dev dummy_10 + + $NS_EXEC sysctl -wq net.ipv6.route.flush=1 + + # Temporary routes + for i in $(seq 1 1000); do + # Expire route after $EXPIRE seconds + $IP -6 route add 2001:20::$i \ + via 2001:10::2 dev dummy_10 expires $EXPIRE + done + sleep $(($EXPIRE * 2)) + N_EXP_SLEEP=$($IP -6 route list |grep expires|wc -l) + if [ $N_EXP_SLEEP -ne 0 ]; then + echo "FAIL: expected 0 routes with expires, got $N_EXP_SLEEP" + ret=1 + else + ret=0 + fi + + # Permanent routes + for i in $(seq 1 5000); do + $IP -6 route add 2001:30::$i \ + via 2001:10::2 dev dummy_10 + done + # Temporary routes + for i in $(seq 1 1000); do + # Expire route after $EXPIRE seconds + $IP -6 route add 2001:20::$i \ + via 2001:10::2 dev dummy_10 expires $EXPIRE + done + sleep $(($EXPIRE * 2)) + N_EXP_SLEEP=$($IP -6 route list |grep expires|wc -l) + if [ $N_EXP_SLEEP -ne 0 ]; then + echo "FAIL: expected 0 routes with expires," \ + "got $N_EXP_SLEEP (5000 permanent routes)" + ret=1 + else + ret=0 + fi + + set +e + + log_test $ret 0 "ipv6 route garbage collection" + + cleanup &> /dev/null +} + fib_suppress_test() { echo @@ -2217,6 +2282,7 @@ do ipv4_mangle) ipv4_mangle_test;; ipv6_mangle) ipv6_mangle_test;; ipv4_bcast_neigh) ipv4_bcast_neigh_test;; + fib6_gc_test|ipv6_gc) fib6_gc_test;; help) echo "Test names: $TESTS"; exit 0;; esac