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selftests: Add version of router_multipath.sh using nexthop objects
Add a version of router_multipath.sh that uses nexthop objects for routes. Ido requested a version that does not cause regressions with mlxsw testing since it does not support nexthop objects yet. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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tools/testing/selftests/net/forwarding/router_mpath_nh.sh
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,359 @@ | ||
| #!/bin/bash | ||
| # SPDX-License-Identifier: GPL-2.0 | ||
|
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| ALL_TESTS="ping_ipv4 ping_ipv6 multipath_test" | ||
| NUM_NETIFS=8 | ||
| source lib.sh | ||
|
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| h1_create() | ||
| { | ||
| vrf_create "vrf-h1" | ||
| ip link set dev $h1 master vrf-h1 | ||
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| ip link set dev vrf-h1 up | ||
| ip link set dev $h1 up | ||
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| ip address add 192.0.2.2/24 dev $h1 | ||
| ip address add 2001:db8:1::2/64 dev $h1 | ||
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| ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1 | ||
| ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1 | ||
| } | ||
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| h1_destroy() | ||
| { | ||
| ip route del 2001:db8:2::/64 vrf vrf-h1 | ||
| ip route del 198.51.100.0/24 vrf vrf-h1 | ||
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| ip address del 2001:db8:1::2/64 dev $h1 | ||
| ip address del 192.0.2.2/24 dev $h1 | ||
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| ip link set dev $h1 down | ||
| vrf_destroy "vrf-h1" | ||
| } | ||
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| h2_create() | ||
| { | ||
| vrf_create "vrf-h2" | ||
| ip link set dev $h2 master vrf-h2 | ||
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| ip link set dev vrf-h2 up | ||
| ip link set dev $h2 up | ||
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| ip address add 198.51.100.2/24 dev $h2 | ||
| ip address add 2001:db8:2::2/64 dev $h2 | ||
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| ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1 | ||
| ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1 | ||
| } | ||
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| h2_destroy() | ||
| { | ||
| ip route del 2001:db8:1::/64 vrf vrf-h2 | ||
| ip route del 192.0.2.0/24 vrf vrf-h2 | ||
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| ip address del 2001:db8:2::2/64 dev $h2 | ||
| ip address del 198.51.100.2/24 dev $h2 | ||
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| ip link set dev $h2 down | ||
| vrf_destroy "vrf-h2" | ||
| } | ||
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| router1_create() | ||
| { | ||
| vrf_create "vrf-r1" | ||
| ip link set dev $rp11 master vrf-r1 | ||
| ip link set dev $rp12 master vrf-r1 | ||
| ip link set dev $rp13 master vrf-r1 | ||
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| ip link set dev vrf-r1 up | ||
| ip link set dev $rp11 up | ||
| ip link set dev $rp12 up | ||
| ip link set dev $rp13 up | ||
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| ip address add 192.0.2.1/24 dev $rp11 | ||
| ip address add 2001:db8:1::1/64 dev $rp11 | ||
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| ip address add 169.254.2.12/24 dev $rp12 | ||
| ip address add fe80:2::12/64 dev $rp12 | ||
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| ip address add 169.254.3.13/24 dev $rp13 | ||
| ip address add fe80:3::13/64 dev $rp13 | ||
| } | ||
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| router1_destroy() | ||
| { | ||
| ip route del 2001:db8:2::/64 vrf vrf-r1 | ||
| ip route del 198.51.100.0/24 vrf vrf-r1 | ||
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| ip address del fe80:3::13/64 dev $rp13 | ||
| ip address del 169.254.3.13/24 dev $rp13 | ||
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| ip address del fe80:2::12/64 dev $rp12 | ||
| ip address del 169.254.2.12/24 dev $rp12 | ||
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| ip address del 2001:db8:1::1/64 dev $rp11 | ||
| ip address del 192.0.2.1/24 dev $rp11 | ||
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| ip nexthop del id 103 | ||
| ip nexthop del id 101 | ||
| ip nexthop del id 102 | ||
| ip nexthop del id 106 | ||
| ip nexthop del id 104 | ||
| ip nexthop del id 105 | ||
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| ip link set dev $rp13 down | ||
| ip link set dev $rp12 down | ||
| ip link set dev $rp11 down | ||
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| vrf_destroy "vrf-r1" | ||
| } | ||
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| router2_create() | ||
| { | ||
| vrf_create "vrf-r2" | ||
| ip link set dev $rp21 master vrf-r2 | ||
| ip link set dev $rp22 master vrf-r2 | ||
| ip link set dev $rp23 master vrf-r2 | ||
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| ip link set dev vrf-r2 up | ||
| ip link set dev $rp21 up | ||
| ip link set dev $rp22 up | ||
| ip link set dev $rp23 up | ||
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| ip address add 198.51.100.1/24 dev $rp21 | ||
| ip address add 2001:db8:2::1/64 dev $rp21 | ||
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| ip address add 169.254.2.22/24 dev $rp22 | ||
| ip address add fe80:2::22/64 dev $rp22 | ||
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| ip address add 169.254.3.23/24 dev $rp23 | ||
| ip address add fe80:3::23/64 dev $rp23 | ||
| } | ||
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| router2_destroy() | ||
| { | ||
| ip route del 2001:db8:1::/64 vrf vrf-r2 | ||
| ip route del 192.0.2.0/24 vrf vrf-r2 | ||
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| ip address del fe80:3::23/64 dev $rp23 | ||
| ip address del 169.254.3.23/24 dev $rp23 | ||
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| ip address del fe80:2::22/64 dev $rp22 | ||
| ip address del 169.254.2.22/24 dev $rp22 | ||
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| ip address del 2001:db8:2::1/64 dev $rp21 | ||
| ip address del 198.51.100.1/24 dev $rp21 | ||
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| ip nexthop del id 201 | ||
| ip nexthop del id 202 | ||
| ip nexthop del id 204 | ||
| ip nexthop del id 205 | ||
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| ip link set dev $rp23 down | ||
| ip link set dev $rp22 down | ||
| ip link set dev $rp21 down | ||
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| vrf_destroy "vrf-r2" | ||
| } | ||
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| routing_nh_obj() | ||
| { | ||
| ip nexthop add id 101 via 169.254.2.22 dev $rp12 | ||
| ip nexthop add id 102 via 169.254.3.23 dev $rp13 | ||
| ip nexthop add id 103 group 101/102 | ||
| ip route add 198.51.100.0/24 vrf vrf-r1 nhid 103 | ||
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| ip nexthop add id 104 via fe80:2::22 dev $rp12 | ||
| ip nexthop add id 105 via fe80:3::23 dev $rp13 | ||
| ip nexthop add id 106 group 104/105 | ||
| ip route add 2001:db8:2::/64 vrf vrf-r1 nhid 106 | ||
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| ip nexthop add id 201 via 169.254.2.12 dev $rp22 | ||
| ip nexthop add id 202 via 169.254.3.13 dev $rp23 | ||
| ip nexthop add id 203 group 201/202 | ||
| ip route add 192.0.2.0/24 vrf vrf-r2 nhid 203 | ||
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| ip nexthop add id 204 via fe80:2::12 dev $rp22 | ||
| ip nexthop add id 205 via fe80:3::13 dev $rp23 | ||
| ip nexthop add id 206 group 204/205 | ||
| ip route add 2001:db8:1::/64 vrf vrf-r2 nhid 206 | ||
| } | ||
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| multipath4_test() | ||
| { | ||
| local desc="$1" | ||
| local weight_rp12=$2 | ||
| local weight_rp13=$3 | ||
| local t0_rp12 t0_rp13 t1_rp12 t1_rp13 | ||
| local packets_rp12 packets_rp13 | ||
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| # Transmit multiple flows from h1 to h2 and make sure they are | ||
| # distributed between both multipath links (rp12 and rp13) | ||
| # according to the configured weights. | ||
| sysctl_set net.ipv4.fib_multipath_hash_policy 1 | ||
| ip nexthop replace id 103 group 101,$weight_rp12/102,$weight_rp13 | ||
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| t0_rp12=$(link_stats_tx_packets_get $rp12) | ||
| t0_rp13=$(link_stats_tx_packets_get $rp13) | ||
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| ip vrf exec vrf-h1 $MZ -q -p 64 -A 192.0.2.2 -B 198.51.100.2 \ | ||
| -d 1msec -t udp "sp=1024,dp=0-32768" | ||
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| t1_rp12=$(link_stats_tx_packets_get $rp12) | ||
| t1_rp13=$(link_stats_tx_packets_get $rp13) | ||
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| let "packets_rp12 = $t1_rp12 - $t0_rp12" | ||
| let "packets_rp13 = $t1_rp13 - $t0_rp13" | ||
| multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13 | ||
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| # Restore settings. | ||
| ip nexthop replace id 103 group 101/102 | ||
| sysctl_restore net.ipv4.fib_multipath_hash_policy | ||
| } | ||
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| multipath6_l4_test() | ||
| { | ||
| local desc="$1" | ||
| local weight_rp12=$2 | ||
| local weight_rp13=$3 | ||
| local t0_rp12 t0_rp13 t1_rp12 t1_rp13 | ||
| local packets_rp12 packets_rp13 | ||
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| # Transmit multiple flows from h1 to h2 and make sure they are | ||
| # distributed between both multipath links (rp12 and rp13) | ||
| # according to the configured weights. | ||
| sysctl_set net.ipv6.fib_multipath_hash_policy 1 | ||
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| ip nexthop replace id 106 group 104,$weight_rp12/105,$weight_rp13 | ||
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| t0_rp12=$(link_stats_tx_packets_get $rp12) | ||
| t0_rp13=$(link_stats_tx_packets_get $rp13) | ||
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| $MZ $h1 -6 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \ | ||
| -d 1msec -t udp "sp=1024,dp=0-32768" | ||
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| t1_rp12=$(link_stats_tx_packets_get $rp12) | ||
| t1_rp13=$(link_stats_tx_packets_get $rp13) | ||
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| let "packets_rp12 = $t1_rp12 - $t0_rp12" | ||
| let "packets_rp13 = $t1_rp13 - $t0_rp13" | ||
| multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13 | ||
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| ip nexthop replace id 106 group 104/105 | ||
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| sysctl_restore net.ipv6.fib_multipath_hash_policy | ||
| } | ||
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| multipath6_test() | ||
| { | ||
| local desc="$1" | ||
| local weight_rp12=$2 | ||
| local weight_rp13=$3 | ||
| local t0_rp12 t0_rp13 t1_rp12 t1_rp13 | ||
| local packets_rp12 packets_rp13 | ||
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| ip nexthop replace id 106 group 104,$weight_rp12/105,$weight_rp13 | ||
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| t0_rp12=$(link_stats_tx_packets_get $rp12) | ||
| t0_rp13=$(link_stats_tx_packets_get $rp13) | ||
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| # Generate 16384 echo requests, each with a random flow label. | ||
| for _ in $(seq 1 16384); do | ||
| ip vrf exec vrf-h1 $PING6 2001:db8:2::2 -F 0 -c 1 -q >/dev/null 2>&1 | ||
| done | ||
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| t1_rp12=$(link_stats_tx_packets_get $rp12) | ||
| t1_rp13=$(link_stats_tx_packets_get $rp13) | ||
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| let "packets_rp12 = $t1_rp12 - $t0_rp12" | ||
| let "packets_rp13 = $t1_rp13 - $t0_rp13" | ||
| multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13 | ||
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| ip nexthop replace id 106 group 104/105 | ||
| } | ||
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| multipath_test() | ||
| { | ||
| log_info "Running IPv4 multipath tests" | ||
| multipath4_test "ECMP" 1 1 | ||
| multipath4_test "Weighted MP 2:1" 2 1 | ||
| multipath4_test "Weighted MP 11:45" 11 45 | ||
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| log_info "Running IPv6 multipath tests" | ||
| multipath6_test "ECMP" 1 1 | ||
| multipath6_test "Weighted MP 2:1" 2 1 | ||
| multipath6_test "Weighted MP 11:45" 11 45 | ||
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| log_info "Running IPv6 L4 hash multipath tests" | ||
| multipath6_l4_test "ECMP" 1 1 | ||
| multipath6_l4_test "Weighted MP 2:1" 2 1 | ||
| multipath6_l4_test "Weighted MP 11:45" 11 45 | ||
| } | ||
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| setup_prepare() | ||
| { | ||
| h1=${NETIFS[p1]} | ||
| rp11=${NETIFS[p2]} | ||
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| rp12=${NETIFS[p3]} | ||
| rp22=${NETIFS[p4]} | ||
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| rp13=${NETIFS[p5]} | ||
| rp23=${NETIFS[p6]} | ||
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| rp21=${NETIFS[p7]} | ||
| h2=${NETIFS[p8]} | ||
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| vrf_prepare | ||
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| h1_create | ||
| h2_create | ||
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| router1_create | ||
| router2_create | ||
| routing_nh_obj | ||
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| forwarding_enable | ||
| } | ||
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| cleanup() | ||
| { | ||
| pre_cleanup | ||
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| forwarding_restore | ||
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| router2_destroy | ||
| router1_destroy | ||
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| h2_destroy | ||
| h1_destroy | ||
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| vrf_cleanup | ||
| } | ||
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| ping_ipv4() | ||
| { | ||
| ping_test $h1 198.51.100.2 | ||
| } | ||
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| ping_ipv6() | ||
| { | ||
| ping6_test $h1 2001:db8:2::2 | ||
| } | ||
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| ip nexthop ls >/dev/null 2>&1 | ||
| if [ $? -ne 0 ]; then | ||
| echo "Nexthop objects not supported; skipping tests" | ||
| exit 0 | ||
| fi | ||
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| trap cleanup EXIT | ||
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| setup_prepare | ||
| setup_wait | ||
| routing_nh_obj | ||
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| tests_run | ||
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| exit $EXIT_STATUS |