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Miller" , David Ahern , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Shuah Khan , Sam Edwards , =?UTF-8?q?Maciej=20=C5=BBenczykowski?= , Alex Henrie , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Hangbin Liu Subject: [PATCHv2 net 2/2] selftests/rtnetlink.sh: add mngtempaddr test Date: Wed, 20 Nov 2024 09:51:08 +0000 Message-ID: <20241120095108.199779-3-liuhangbin@gmail.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20241120095108.199779-1-liuhangbin@gmail.com> References: <20241120095108.199779-1-liuhangbin@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add a test to check the temporary address could be added/removed correctly when mngtempaddr is set or removed/unmanaged. Signed-off-by: Sam Edwards Signed-off-by: Hangbin Liu Reviewed-by: David Ahern --- tools/testing/selftests/net/rtnetlink.sh | 95 ++++++++++++++++++++++++ 1 file changed, 95 insertions(+) diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selft= ests/net/rtnetlink.sh index bdf6f10d0558..b63053202524 100755 --- a/tools/testing/selftests/net/rtnetlink.sh +++ b/tools/testing/selftests/net/rtnetlink.sh @@ -29,6 +29,7 @@ ALL_TESTS=3D" kci_test_bridge_parent_id kci_test_address_proto kci_test_enslave_bonding + kci_test_mngtmpaddr " =20 devdummy=3D"test-dummy0" @@ -44,6 +45,7 @@ check_err() if [ $ret -eq 0 ]; then ret=3D$1 fi + [ -n "$2" ] && echo "$2" } =20 # same but inverted -- used when command must fail for test to pass @@ -1267,6 +1269,99 @@ kci_test_enslave_bonding() ip netns del "$testns" } =20 +# Called to validate the addresses on $IFNAME: +# +# 1. Every `temporary` address must have a matching `mngtmpaddr` +# 2. Every `mngtmpaddr` address must have some un`deprecated` `temporary` +# +# If the mngtmpaddr or tempaddr checking failed, return 0 and stop slowwait +validate_mngtmpaddr() +{ + local dev=3D$1 + local prefix=3D"" + local addr_list=3D$(ip -j -n $testns addr show dev ${dev}) + local temp_addrs=3D$(echo ${addr_list} | \ + jq -r '.[].addr_info[] | select(.temporary =3D=3D true) | .local') + local mng_prefixes=3D$(echo ${addr_list} | \ + jq -r '.[].addr_info[] | select(.mngtmpaddr =3D=3D true) | .local' | \ + cut -d: -f1-4 | tr '\n' ' ') + local undep_prefixes=3D$(echo ${addr_list} | \ + jq -r '.[].addr_info[] | select(.temporary =3D=3D true and .deprecated != =3D true) | .local' | \ + cut -d: -f1-4 | tr '\n' ' ') + + # 1. All temporary addresses (temp and dep) must have a matching mngtmpad= dr + for address in ${temp_addrs}; do + prefix=3D$(echo ${address} | cut -d: -f1-4) + if [[ ! " ${mng_prefixes} " =3D~ " $prefix " ]]; then + check_err 1 "FAIL: Temporary $address with no matching mngtmpaddr!"; + return 0 + fi + done + + # 2. All mngtmpaddr addresses must have a temporary address (not dep) + for prefix in ${mng_prefixes}; do + if [[ ! " ${undep_prefixes} " =3D~ " $prefix " ]]; then + check_err 1 "FAIL: No undeprecated temporary in $prefix!"; + return 0 + fi + done + + return 1 +} + +kci_test_mngtmpaddr() +{ + local ret=3D0 + + setup_ns testns + if [ $? -ne 0 ]; then + end_test "SKIP mngtmpaddr tests: cannot add net namespace $testns" + return $ksft_skip + fi + + # 1. Create a dummy Ethernet interface + run_cmd ip -n $testns link add ${devdummy} type dummy + run_cmd ip -n $testns link set ${devdummy} up + run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.use_tem= paddr=3D1 + run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.temp_pr= efered_lft=3D10 + run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.temp_va= lid_lft=3D25 + run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.max_des= ync_factor=3D1 + + # 2. Create several mngtmpaddr addresses on that interface. + # with temp_*_lft configured to be pretty short (10 and 35 seconds + # for prefer/valid respectively) + for i in $(seq 1 9); do + run_cmd ip -n $testns addr add 2001:db8:7e57:${i}::1/64 mngtmpaddr dev $= {devdummy} + done + + # 3. Confirm that a preferred temporary address exists for each mngtmpaddr + # address at all times, polling once per second for 30 seconds. + slowwait 30 validate_mngtmpaddr ${devdummy} + + # 4. Delete each mngtmpaddr address, one at a time (alternating between + # deleting and merely un-mngtmpaddr-ing), and confirm that the other + # mngtmpaddr addresses still have preferred temporaries. + for i in $(seq 1 9); do + (( $i % 4 =3D=3D 0 )) && mng_flag=3D"mngtmpaddr" || mng_flag=3D"" + if (( $i % 2 =3D=3D 0 )); then + run_cmd ip -n $testns addr del 2001:db8:7e57:${i}::1/64 $mng_flag dev $= {devdummy} + else + run_cmd ip -n $testns addr change 2001:db8:7e57:${i}::1/64 dev ${devdum= my} + fi + # the temp addr should be deleted + validate_mngtmpaddr ${devdummy} + done + + if [ $ret -ne 0 ]; then + end_test "FAIL: mngtmpaddr add/remove incorrect" + else + end_test "PASS: mngtmpaddr add/remove correctly" + fi + + ip netns del "$testns" + return $ret +} + kci_test_rtnl() { local current_test --=20 2.46.0