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Miller" , Jakub Kicinski , Jonathan Corbet , Hideaki YOSHIFUJI , David Ahern , Shuah Khan , Christophe JAILLET , , , Ido Schimmel Subject: [PATCH v5 net-next 3/3] selftests/net/forwarding: configurable seed tests Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline X-Originating-IP: [11.0.8.107] X-EXCLAIMER-MD-CONFIG: 208ac3cd-1ed4-4982-a353-bdefac89ac0a X-KLMS-Rule-ID: 1 X-KLMS-Message-Action: clean X-KLMS-AntiSpam-Lua-Profiles: 163354 [Apr 27 2021] X-KLMS-AntiSpam-Version: 5.9.20.0 X-KLMS-AntiSpam-Envelope-From: BalaevPA@infotecs.ru X-KLMS-AntiSpam-Rate: 0 X-KLMS-AntiSpam-Status: not_detected X-KLMS-AntiSpam-Method: none X-KLMS-AntiSpam-Auth: dkim=none X-KLMS-AntiSpam-Info: LuaCore: 443 443 d64ad0ad6f66abd85f8fb55fe5d831fdcc4c44a0, {Tracking_from_domain_doesnt_match_to} X-MS-Exchange-Organization-SCL: -1 X-KLMS-AntiSpam-Interceptor-Info: scan successful X-KLMS-AntiPhishing: Clean, bases: 2021/04/27 12:22:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/04/27 11:47:00 #16580367 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org Test equal and different seed values for IPv4/IPv6 multipath routing. Signed-off-by: Balaev Pavel --- .../testing/selftests/net/forwarding/Makefile | 1 + tools/testing/selftests/net/forwarding/lib.sh | 28 ++ .../net/forwarding/router_mpath_seed.sh | 347 ++++++++++++++++++ 3 files changed, 376 insertions(+) create mode 100755 tools/testing/selftests/net/forwarding/router_mpath_seed.sh diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile index d97bd6889..080af970c 100644 --- a/tools/testing/selftests/net/forwarding/Makefile +++ b/tools/testing/selftests/net/forwarding/Makefile @@ -38,6 +38,7 @@ TEST_PROGS = bridge_igmp.sh \ router_mpath_nh.sh \ router_multicast.sh \ router_multipath.sh \ + router_mpath_seed.sh \ router.sh \ router_vid_1.sh \ sch_ets.sh \ diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 42e28c983..b7445b1c5 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -10,6 +10,7 @@ PING6=${PING6:=ping6} MZ=${MZ:=mausezahn} ARPING=${ARPING:=arping} TEAMD=${TEAMD:=teamd} +OPENSSL=${OPENSSL:=openssl} WAIT_TIME=${WAIT_TIME:=5} PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no} PAUSE_ON_CLEANUP=${PAUSE_ON_CLEANUP:=no} @@ -698,6 +699,33 @@ link_stats_rx_errors_get() link_stats_get $1 rx errors } +ns_link_stats_get() +{ + local netns=$1; shift + local if_name=$1; shift + local dir=$1; shift + local stat=$1; shift + + ip netns exec $netns ip -j -s link show dev $if_name \ + | jq '.[]["stats64"]["'$dir'"]["'$stat'"]' +} + +ns_link_stats_tx_packets_get() +{ + local netns=$1; shift + local if_name=$1; shift + + ns_link_stats_get $netns $if_name tx packets +} + +ns_link_stats_rx_errors_get() +{ + local netns=$1; shift + local if_name=$1; shift + + ns_link_stats_get $netns $if_name rx errors +} + tc_rule_stats_get() { local dev=$1; shift diff --git a/tools/testing/selftests/net/forwarding/router_mpath_seed.sh b/tools/testing/selftests/net/forwarding/router_mpath_seed.sh new file mode 100755 index 000000000..b2f99f428 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/router_mpath_seed.sh @@ -0,0 +1,347 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +ALL_TESTS="multipath_seed_test" +NUM_NETIFS=8 +source lib.sh + +veth_prepare() +{ + ip link add ecmp1l type veth peer name ecmp1r + ip link add ecmp2l type veth peer name ecmp2r + ip link add ecmphost1l type veth peer name ecmphost1r + ip link add ecmphost2l type veth peer name ecmphost2r +} + +cl1_create() +{ + local ns_exec="ip netns exec ecmp_cl1" + + ip netns add ecmp_cl1 + ip l set dev ecmphost1l netns ecmp_cl1 + $ns_exec ip l set dev ecmphost1l up + $ns_exec ip a a 10.100.0.2/30 dev ecmphost1l + $ns_exec ip a a 2001:db8:3::2/64 dev ecmphost1l + $ns_exec ip r add default via 10.100.0.1 + $ns_exec ip r add default via 2001:db8:3::1 +} + +cl2_create() +{ + local ns_exec="ip netns exec ecmp_cl2" + + ip netns add ecmp_cl2 + ip l set dev ecmphost2l netns ecmp_cl2 + $ns_exec ip l set dev ecmphost2l up + $ns_exec ip a a 10.200.0.2/30 dev ecmphost2l + $ns_exec ip a a 2001:db8:4::2/64 dev ecmphost2l + $ns_exec ip r add default via 10.200.0.1 + $ns_exec ip r add default via 2001:db8:4::1 +} + +r1_create() +{ + local ns_exec="ip netns exec ecmp1" + + ip netns add ecmp1 + ip l set dev ecmp1l netns ecmp1 + ip l set dev ecmp2l netns ecmp1 + ip l set dev ecmphost1r netns ecmp1 + $ns_exec ip l set dev ecmphost1r up + $ns_exec ip l set dev ecmp1l up + $ns_exec ip l set dev ecmp2l up + $ns_exec ip a a 10.100.0.1/30 dev ecmphost1r + $ns_exec ip a a 10.10.0.1/30 dev ecmp1l + $ns_exec ip a a 10.20.0.1/30 dev ecmp2l + $ns_exec ip a a 2001:db8:3::1/64 dev ecmphost1r + $ns_exec ip a a 2001:db8:1::1/64 dev ecmp1l + $ns_exec ip a a 2001:db8:2::1/64 dev ecmp2l + $ns_exec sysctl -q net.ipv4.ip_forward=1 + $ns_exec sysctl -q net.ipv6.conf.all.forwarding=1 + $ns_exec sysctl -q net.ipv4.fib_multipath_hash_policy=1 + $ns_exec sysctl -q net.ipv6.fib_multipath_hash_policy=1 + $ns_exec ip route add 10.200.0.0/30 nexthop via 10.10.0.2 \ + weight 1 nexthop via 10.20.0.2 weight 1 + $ns_exec ip route add 2001:db8:4::/64 nexthop via 2001:db8:1::2 \ + weight 1 nexthop via 2001:db8:2::2 weight 1 +} + +r2_create() +{ + local ns_exec="ip netns exec ecmp2" + + ip netns add ecmp2 + ip l set dev ecmp1r netns ecmp2 + ip l set dev ecmp2r netns ecmp2 + ip l set dev ecmphost2r netns ecmp2 + $ns_exec ip l set dev ecmphost2r up + $ns_exec ip l set dev ecmp1r up + $ns_exec ip l set dev ecmp2r up + $ns_exec ip a a 10.200.0.1/30 dev ecmphost2r + $ns_exec ip a a 10.10.0.2/30 dev ecmp1r + $ns_exec ip a a 10.20.0.2/30 dev ecmp2r + $ns_exec ip a a 2001:db8:4::1/64 dev ecmphost2r + $ns_exec ip a a 2001:db8:1::2/64 dev ecmp1r + $ns_exec ip a a 2001:db8:2::2/64 dev ecmp2r + $ns_exec sysctl -q net.ipv4.ip_forward=1 + $ns_exec sysctl -q net.ipv6.conf.all.forwarding=1 + $ns_exec sysctl -q net.ipv4.fib_multipath_hash_policy=1 + $ns_exec sysctl -q net.ipv6.fib_multipath_hash_policy=1 + $ns_exec ip route add 10.100.0.0/30 nexthop via 10.10.0.1 \ + weight 1 nexthop via 10.20.0.1 weight 1 + $ns_exec ip route add 2001:db8:3::/64 nexthop via 2001:db8:1::1 \ + weight 1 nexthop via 2001:db8:2::1 weight 1 +} + +cl1_destroy() +{ + ip netns del ecmp_cl1 +} + +cl2_destroy() +{ + ip netns del ecmp_cl2 +} + +r1_destroy() +{ + ip netns del ecmp1 +} + +r2_destroy() +{ + ip netns del ecmp2 +} + +gen_udp4() +{ + local sp=$1; shift + local dp=$1; shift + local tx1_1_start tx1_2_start tx2_1_start tx2_2_start + local tx1_1_end tx1_2_end tx2_1_end tx2_2_end + local tx1_1 tx1_2 tx2_1 tx2_2 + local tx1_1_res tx1_2_res tx2_1_res tx2_2_res + local chan1 chan2 + local cl1_exec="ip netns exec ecmp_cl1" + local cl2_exec="ip netns exec ecmp_cl2" + + tx1_1_start=$(ns_link_stats_tx_packets_get ecmp1 ecmp1l) + tx1_2_start=$(ns_link_stats_tx_packets_get ecmp1 ecmp2l) + tx2_1_start=$(ns_link_stats_tx_packets_get ecmp2 ecmp1r) + tx2_2_start=$(ns_link_stats_tx_packets_get ecmp2 ecmp2r) + + $cl1_exec $MZ ecmphost1l -q -c 20 -p 64 -A 10.100.0.2 -B 10.200.0.2 \ + -t udp "sp=${sp},dp=${dp}" + + $cl2_exec $MZ ecmphost2l -q -c 20 -p 64 -A 10.200.0.2 -B 10.100.0.2 \ + -t udp "sp=${dp},dp=${sp}" + + tx1_1_end=$(ns_link_stats_tx_packets_get ecmp1 ecmp1l) + tx1_2_end=$(ns_link_stats_tx_packets_get ecmp1 ecmp2l) + tx2_1_end=$(ns_link_stats_tx_packets_get ecmp2 ecmp1r) + tx2_2_end=$(ns_link_stats_tx_packets_get ecmp2 ecmp2r) + + let "tx1_1 = $tx1_1_end - $tx1_1_start" + let "tx1_2 = $tx1_2_end - $tx1_2_start" + let "tx2_1 = $tx2_1_end - $tx2_1_start" + let "tx2_2 = $tx2_2_end - $tx2_2_start" + + [ "$tx1_1" -ge 20 ] && tx1_1_res=1 || tx1_1_res=0 + [ "$tx1_2" -ge 20 ] && tx1_2_res=1 || tx1_2_res=0 + [ "$tx2_1" -ge 20 ] && tx2_1_res=1 || tx2_1_res=0 + [ "$tx2_2" -ge 20 ] && tx2_2_res=1 || tx2_2_res=0 + + let "chan1 = $tx1_1_res + $tx2_1_res" + let "chan2 = $tx1_2_res + $tx2_2_res" + + if [ $chan1 -eq 2 ] || [ $chan2 -eq 2 ]; then + return 0 + fi + + return 1; +} + +gen_udp6() +{ + local sp=$1; shift + local dp=$1; shift + local tx1_1_start tx1_2_start tx2_1_start tx2_2_start + local tx1_1_end tx1_2_end tx2_1_end tx2_2_end + local tx1_1 tx1_2 tx2_1 tx2_2 + local tx1_1_res tx1_2_res tx2_1_res tx2_2_res + local chan1 chan2 + local cl1_exec="ip netns exec ecmp_cl1" + local cl2_exec="ip netns exec ecmp_cl2" + + tx1_1_start=$(ns_link_stats_tx_packets_get ecmp1 ecmp1l) + tx1_2_start=$(ns_link_stats_tx_packets_get ecmp1 ecmp2l) + tx2_1_start=$(ns_link_stats_tx_packets_get ecmp2 ecmp1r) + tx2_2_start=$(ns_link_stats_tx_packets_get ecmp2 ecmp2r) + + $cl1_exec $MZ ecmphost1l -6 -q -c 20 -p 64 -A 2001:db8:3::2 -B 2001:db8:4::2 \ + -t udp "sp=${sp},dp=${dp}" + + $cl2_exec $MZ ecmphost2l -6 -q -c 20 -p 64 -A 2001:db8:4::2 -B 2001:db8:3::2 \ + -t udp "sp=${dp},dp=${sp}" + + tx1_1_end=$(ns_link_stats_tx_packets_get ecmp1 ecmp1l) + tx1_2_end=$(ns_link_stats_tx_packets_get ecmp1 ecmp2l) + tx2_1_end=$(ns_link_stats_tx_packets_get ecmp2 ecmp1r) + tx2_2_end=$(ns_link_stats_tx_packets_get ecmp2 ecmp2r) + + let "tx1_1 = $tx1_1_end - $tx1_1_start" + let "tx1_2 = $tx1_2_end - $tx1_2_start" + let "tx2_1 = $tx2_1_end - $tx2_1_start" + let "tx2_2 = $tx2_2_end - $tx2_2_start" + + [ "$tx1_1" -ge 20 ] && tx1_1_res=1 || tx1_1_res=0 + [ "$tx1_2" -ge 20 ] && tx1_2_res=1 || tx1_2_res=0 + [ "$tx2_1" -ge 20 ] && tx2_1_res=1 || tx2_1_res=0 + [ "$tx2_2" -ge 20 ] && tx2_2_res=1 || tx2_2_res=0 + + let "chan1 = $tx1_1_res + $tx2_1_res" + let "chan2 = $tx1_2_res + $tx2_2_res" + + if [ $chan1 -eq 2 ] || [ $chan2 -eq 2 ]; then + return 0 + fi + + return 1; +} + + +seed4_test_equal() +{ + RET=0 + local sp + local dp + local i + local res=0 + local seed=$(${OPENSSL} rand -hex 16) + + seed=${seed:0:16},${seed:16:16} + + ip netns exec ecmp1 sysctl -q \ + net.ipv4.fib_multipath_hash_seed=${seed} + ip netns exec ecmp2 sysctl -q \ + net.ipv4.fib_multipath_hash_seed=${seed} + + for i in {1..30}; do + sp=$(shuf -i 1024-65000 -n 1) + dp=$(shuf -i 1024-65000 -n 1) + gen_udp4 $sp $dp && let res++ + done + + [ $res != 30 ] && RET=1 + log_test "IPv4 multipath seed tests [equal seed]" +} + +seed4_test_diff() +{ + RET=0 + local sp + local dp + local i + local res=0 + local seed1=$(${OPENSSL} rand -hex 16) + local seed2=$(${OPENSSL} rand -hex 16) + + seed1=${seed1:0:16},${seed1:16:16} + seed2=${seed2:0:16},${seed2:16:16} + + ip netns exec ecmp1 sysctl -q \ + net.ipv4.fib_multipath_hash_seed=${seed1} + ip netns exec ecmp2 sysctl -q \ + net.ipv4.fib_multipath_hash_seed=${seed2} + + for i in {1..30}; do + sp=$(shuf -i 1024-65000 -n 1) + dp=$(shuf -i 1024-65000 -n 1) + gen_udp4 $sp $dp && let res++ + done + + [ $res -eq 30 ] && RET=1 + log_test "IPv4 multipath seed tests [different seed]" +} + +seed6_test_equal() +{ + RET=0 + local sp + local dp + local i + local res=0 + local seed=$(${OPENSSL} rand -hex 16) + + seed=${seed:0:16},${seed:16:16} + + ip netns exec ecmp1 sysctl -q \ + net.ipv6.fib_multipath_hash_seed=${seed} + ip netns exec ecmp2 sysctl -q \ + net.ipv6.fib_multipath_hash_seed=${seed} + + for i in {1..30}; do + sp=$(shuf -i 1024-65000 -n 1) + dp=$(shuf -i 1024-65000 -n 1) + gen_udp6 $sp $dp && let res++ + done + + [ $res != 30 ] && RET=1 + log_test "IPv6 multipath seed tests [equal seed]" +} + +seed6_test_diff() +{ + RET=0 + local sp + local dp + local i + local res=0 + local seed1=$(${OPENSSL} rand -hex 16) + local seed2=$(${OPENSSL} rand -hex 16) + + seed1=${seed1:0:16},${seed1:16:16} + seed2=${seed2:0:16},${seed2:16:16} + + ip netns exec ecmp1 sysctl -q \ + net.ipv6.fib_multipath_hash_seed=${seed1} + ip netns exec ecmp2 sysctl -q \ + net.ipv6.fib_multipath_hash_seed=${seed2} + + for i in {1..30}; do + sp=$(shuf -i 1024-65000 -n 1) + dp=$(shuf -i 1024-65000 -n 1) + gen_udp4 $sp $dp && let res++ + done + + [ $res -eq 30 ] && RET=1 + log_test "IPv6 multipath seed tests [different seed]" +} + +multipath_seed_test() +{ + require_command $OPENSSL + veth_prepare + cl1_create + cl2_create + r1_create + r2_create + + log_info "Running IPv4 multipath seed tests [equal seed]" + seed4_test_equal + log_info "Running IPv4 multipath seed tests [different seed]" + seed4_test_diff + log_info "Running IPv6 multipath seed tests [equal seed]" + seed6_test_equal + log_info "Running IPv6 multipath seed tests [different seed]" + seed6_test_diff + + cl1_destroy + cl2_destroy + r1_destroy + r2_destroy +} + +tests_run + +exit $EXIT_STATUS -- 2.31.1