#!/bin/bash # SPDX-License-Identifier: GPL-2.0 # +--------------------+ +----------------------+ # | H1 | | H2 | # | | | | # | $h1.200 + | | + $h2.200 | # | 192.0.2.1/28 | | | | 192.0.2.18/28 | # | 2001:db8:1::1/64 | | | | 2001:db8:2::1/64 | # | | | | | | # | $h1 + | | + $h2 | # | | | | | | # +------------------|-+ +-|--------------------+ # | | # +------------------|-------------------------|--------------------+ # | SW | | | # | | | | # | $rp1 + + $rp2 | # | | | | # | $rp1.200 + + $rp2.200 | # | 192.0.2.2/28 192.0.2.17/28 | # | 2001:db8:1::2/64 2001:db8:2::2/64 | # | | # +-----------------------------------------------------------------+ ALL_TESTS=" ping_ipv4 ping_ipv6 test_stats_rx_ipv4 test_stats_tx_ipv4 test_stats_rx_ipv6 test_stats_tx_ipv6 respin_enablement test_stats_rx_ipv4 test_stats_tx_ipv4 test_stats_rx_ipv6 test_stats_tx_ipv6 reapply_config ping_ipv4 ping_ipv6 test_stats_rx_ipv4 test_stats_tx_ipv4 test_stats_rx_ipv6 test_stats_tx_ipv6 test_stats_report_rx test_stats_report_tx test_destroy_enabled test_double_enable " NUM_NETIFS=4 source lib.sh h1_create() { simple_if_init $h1 vlan_create $h1 200 v$h1 192.0.2.1/28 2001:db8:1::1/64 ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2 ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2 } h1_destroy() { ip -6 route del 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2 ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2 vlan_destroy $h1 200 simple_if_fini $h1 } h2_create() { simple_if_init $h2 vlan_create $h2 200 v$h2 192.0.2.18/28 2001:db8:2::1/64 ip route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17 ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2 } h2_destroy() { ip -6 route del 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2 ip route del 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17 vlan_destroy $h2 200 simple_if_fini $h2 } router_rp1_200_create() { ip link add name $rp1.200 up \ link $rp1 addrgenmode eui64 type vlan id 200 ip address add dev $rp1.200 192.0.2.2/28 ip address add dev $rp1.200 2001:db8:1::2/64 ip stats set dev $rp1.200 l3_stats on } router_rp1_200_destroy() { ip stats set dev $rp1.200 l3_stats off ip address del dev $rp1.200 2001:db8:1::2/64 ip address del dev $rp1.200 192.0.2.2/28 ip link del dev $rp1.200 } router_create() { ip link set dev $rp1 up router_rp1_200_create ip link set dev $rp2 up vlan_create $rp2 200 "" 192.0.2.17/28 2001:db8:2::2/64 } router_destroy() { vlan_destroy $rp2 200 ip link set dev $rp2 down router_rp1_200_destroy ip link set dev $rp1 down } setup_prepare() { h1=${NETIFS[p1]} rp1=${NETIFS[p2]} rp2=${NETIFS[p3]} h2=${NETIFS[p4]} rp1mac=$(mac_get $rp1) rp2mac=$(mac_get $rp2) vrf_prepare h1_create h2_create router_create forwarding_enable } cleanup() { pre_cleanup forwarding_restore router_destroy h2_destroy h1_destroy vrf_cleanup } ping_ipv4() { ping_test $h1.200 192.0.2.18 " IPv4" } ping_ipv6() { ping_test $h1.200 2001:db8:2::1 " IPv6" } get_l3_stat() { local selector=$1; shift ip -j stats show dev $rp1.200 group offload subgroup l3_stats | jq '.[0].stats64.'$selector } send_packets_rx_ipv4() { # Send 21 packets instead of 20, because the first one might trap and go # through the SW datapath, which might not bump the HW counter. $MZ $h1.200 -c 21 -d 20msec -p 100 \ -a own -b $rp1mac -A 192.0.2.1 -B 192.0.2.18 \ -q -t udp sp=54321,dp=12345 } send_packets_rx_ipv6() { $MZ $h1.200 -6 -c 21 -d 20msec -p 100 \ -a own -b $rp1mac -A 2001:db8:1::1 -B 2001:db8:2::1 \ -q -t udp sp=54321,dp=12345 } send_packets_tx_ipv4() { $MZ $h2.200 -c 21 -d 20msec -p 100 \ -a own -b $rp2mac -A 192.0.2.18 -B 192.0.2.1 \ -q -t udp sp=54321,dp=12345 } send_packets_tx_ipv6() { $MZ $h2.200 -6 -c 21 -d 20msec -p 100 \ -a own -b $rp2mac -A 2001:db8:2::1 -B 2001:db8:1::1 \ -q -t udp sp=54321,dp=12345 } ___test_stats() { local dir=$1; shift local prot=$1; shift local a local b a=$(get_l3_stat ${dir}.packets) send_packets_${dir}_${prot} "$@" b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \ get_l3_stat ${dir}.packets) check_err $? "Traffic not reflected in the counter: $a -> $b" } __test_stats() { local dir=$1; shift local prot=$1; shift RET=0 ___test_stats "$dir" "$prot" log_test "Test $dir packets: $prot" } test_stats_rx_ipv4() { __test_stats rx ipv4 } test_stats_tx_ipv4() { __test_stats tx ipv4 } test_stats_rx_ipv6() { __test_stats rx ipv6 } test_stats_tx_ipv6() { __test_stats tx ipv6 } # Make sure everything works well even after stats have been disabled and # reenabled on the same device without touching the L3 configuration. respin_enablement() { log_info "Turning stats off and on again" ip stats set dev $rp1.200 l3_stats off ip stats set dev $rp1.200 l3_stats on } # For the initial run, l3_stats is enabled on a completely set up netdevice. Now # do it the other way around: enabling the L3 stats on an L2 netdevice, and only # then apply the L3 configuration. reapply_config() { log_info "Reapplying configuration" router_rp1_200_destroy ip link add name $rp1.200 link $rp1 addrgenmode none type vlan id 200 ip stats set dev $rp1.200 l3_stats on ip link set dev $rp1.200 up addrgenmode eui64 ip address add dev $rp1.200 192.0.2.2/28 ip address add dev $rp1.200 2001:db8:1::2/64 } __test_stats_report() { local dir=$1; shift local prot=$1; shift local a local b RET=0 a=$(get_l3_stat ${dir}.packets) send_packets_${dir}_${prot} ip address flush dev $rp1.200 b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \ get_l3_stat ${dir}.packets) check_err $? "Traffic not reflected in the counter: $a -> $b" log_test "Test ${dir} packets: stats pushed on loss of L3" ip stats set dev $rp1.200 l3_stats off ip link del dev $rp1.200 router_rp1_200_create } test_stats_report_rx() { __test_stats_report rx ipv4 } test_stats_report_tx() { __test_stats_report tx ipv4 } test_destroy_enabled() { RET=0 ip link del dev $rp1.200 router_rp1_200_create log_test "Destroy l3_stats-enabled netdev" } test_double_enable() { RET=0 ___test_stats rx ipv4 \ ip stats set dev $rp1.200 l3_stats on log_test "Test stat retention across a spurious enablement" } trap cleanup EXIT setup_prepare setup_wait tests_run exit $EXIT_STATUS