--- /dev/null
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+ +------------------------+
+# | H1 (vrf) | | H2 (vrf) |
+# | + $h1 | | + $h2 |
+# | | 192.0.2.1/28 | | | 192.0.2.2/28 |
+# | | 2001:db8:1::1/64 | | | 2001:db8:1::2/64 |
+# +----|------------------+ +----|-------------------+
+# | |
+# +----|--------------------------------------------------|-------------------+
+# | SW | | |
+# | +--|--------------------------------------------------|-----------------+ |
+# | | + $swp1 BR1 (802.1d) + $swp2 | |
+# | | | |
+# | | + vx1 (vxlan) | |
+# | | local 2001:db8:3::1 | |
+# | | remote 2001:db8:4::1 2001:db8:5::1 | |
+# | | id 1000 dstport $VXPORT | |
+# | +-----------------------------------------------------------------------+ |
+# | |
+# | 2001:db8:4::0/64 via 2001:db8:3::2 |
+# | 2001:db8:5::0/64 via 2001:db8:3::2 |
+# | |
+# | + $rp1 |
+# | | 2001:db8:3::1/64 |
+# +----|----------------------------------------------------------------------+
+# |
+# +----|----------------------------------------------------------+
+# | | VRP2 (vrf) |
+# | + $rp2 |
+# | 2001:db8:3::2/64 |
+# | | (maybe) HW
+# =============================================================================
+# | | (likely) SW
+# | + v1 (veth) + v3 (veth) |
+# | | 2001:db8:4::2/64 | 2001:db8:5::2/64 |
+# +----|---------------------------------------|------------------+
+# | |
+# +----|--------------------------------+ +----|-------------------------------+
+# | + v2 (veth) NS1 (netns) | | + v4 (veth) NS2 (netns) |
+# | 2001:db8:4::1/64 | | 2001:db8:5::1/64 |
+# | | | |
+# | 2001:db8:3::0/64 via 2001:db8:4::2 | | 2001:db8:3::0/64 via 2001:db8:5::2 |
+# | 2001:db8:5::1/128 via 2001:db8:4::2 | | 2001:db8:4::1/128 via |
+# | | | 2001:db8:5::2 |
+# | | | |
+# | +-------------------------------+ | | +-------------------------------+ |
+# | | BR2 (802.1d) | | | | BR2 (802.1d) | |
+# | | + vx2 (vxlan) | | | | + vx2 (vxlan) | |
+# | | local 2001:db8:4::1 | | | | local 2001:db8:5::1 | |
+# | | remote 2001:db8:3::1 | | | | remote 2001:db8:3::1 | |
+# | | remote 2001:db8:5::1 | | | | remote 2001:db8:4::1 | |
+# | | id 1000 dstport $VXPORT | | | | id 1000 dstport $VXPORT | |
+# | | | | | | | |
+# | | + w1 (veth) | | | | + w1 (veth) | |
+# | +--|----------------------------+ | | +--|----------------------------+ |
+# | | | | | |
+# | +--|----------------------------+ | | +--|----------------------------+ |
+# | | + w2 (veth) VW2 (vrf) | | | | + w2 (veth) VW2 (vrf) | |
+# | | 192.0.2.3/28 | | | | 192.0.2.4/28 | |
+# | | 2001:db8:1::3/64 | | | | 2001:db8:1::4/64 | |
+# | +-------------------------------+ | | +-------------------------------+ |
+# +-------------------------------------+ +------------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+ ping_ipv4
+ ping_ipv6
+ test_flood
+ test_unicast
+ test_ttl
+ test_tos
+ test_ecn_encap
+ test_ecn_decap
+ reapply_config
+ ping_ipv4
+ ping_ipv6
+ test_flood
+ test_unicast
+"}
+
+NUM_NETIFS=6
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+ tc qdisc add dev $h1 clsact
+}
+
+h1_destroy()
+{
+ tc qdisc del dev $h1 clsact
+ simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+ tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+ simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+rp1_set_addr()
+{
+ ip address add dev $rp1 2001:db8:3::1/64
+
+ ip route add 2001:db8:4::0/64 nexthop via 2001:db8:3::2
+ ip route add 2001:db8:5::0/64 nexthop via 2001:db8:3::2
+}
+
+rp1_unset_addr()
+{
+ ip route del 2001:db8:5::0/64 nexthop via 2001:db8:3::2
+ ip route del 2001:db8:4::0/64 nexthop via 2001:db8:3::2
+
+ ip address del dev $rp1 2001:db8:3::1/64
+}
+
+switch_create()
+{
+ ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
+ # Make sure the bridge uses the MAC address of the local port and not
+ # that of the VxLAN's device.
+ ip link set dev br1 address $(mac_get $swp1)
+ ip link set dev br1 up
+
+ ip link set dev $rp1 up
+ rp1_set_addr
+ tc qdisc add dev $rp1 clsact
+
+ ip link add name vx1 type vxlan id 1000 local 2001:db8:3::1 \
+ dstport "$VXPORT" nolearning udp6zerocsumrx udp6zerocsumtx \
+ tos inherit ttl 100
+ ip link set dev vx1 up
+
+ ip link set dev vx1 master br1
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+ tc qdisc add dev $swp1 clsact
+
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+
+ bridge fdb append dev vx1 00:00:00:00:00:00 dst 2001:db8:4::1 self
+ bridge fdb append dev vx1 00:00:00:00:00:00 dst 2001:db8:5::1 self
+}
+
+switch_destroy()
+{
+ bridge fdb del dev vx1 00:00:00:00:00:00 dst 2001:db8:5::1 self
+ bridge fdb del dev vx1 00:00:00:00:00:00 dst 2001:db8:4::1 self
+
+ ip link set dev $swp2 down
+ ip link set dev $swp2 nomaster
+
+ tc qdisc del dev $swp1 clsact
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+
+ ip link set dev vx1 nomaster
+ ip link set dev vx1 down
+ ip link del dev vx1
+
+ tc qdisc del dev $rp1 clsact
+ rp1_unset_addr
+ ip link set dev $rp1 down
+
+ ip link set dev br1 down
+ ip link del dev br1
+}
+
+vrp2_create()
+{
+ simple_if_init $rp2 2001:db8:3::2/64
+ __simple_if_init v1 v$rp2 2001:db8:4::2/64
+ __simple_if_init v3 v$rp2 2001:db8:5::2/64
+ tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+ tc qdisc del dev v1 clsact
+ __simple_if_fini v3 2001:db8:5::2/64
+ __simple_if_fini v1 2001:db8:4::2/64
+ simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+ns_init_common()
+{
+ local in_if=$1; shift
+ local in_addr=$1; shift
+ local other_in_addr=$1; shift
+ local nh_addr=$1; shift
+ local host_addr_ipv4=$1; shift
+ local host_addr_ipv6=$1; shift
+
+ ip link set dev $in_if up
+ ip address add dev $in_if $in_addr/64
+ tc qdisc add dev $in_if clsact
+
+ ip link add name br2 type bridge vlan_filtering 0
+ ip link set dev br2 up
+
+ ip link add name w1 type veth peer name w2
+
+ ip link set dev w1 master br2
+ ip link set dev w1 up
+
+ ip link add name vx2 type vxlan id 1000 local $in_addr \
+ dstport "$VXPORT" udp6zerocsumrx
+ ip link set dev vx2 up
+ bridge fdb append dev vx2 00:00:00:00:00:00 dst 2001:db8:3::1 self
+ bridge fdb append dev vx2 00:00:00:00:00:00 dst $other_in_addr self
+
+ ip link set dev vx2 master br2
+ tc qdisc add dev vx2 clsact
+
+ simple_if_init w2 $host_addr_ipv4/28 $host_addr_ipv6/64
+
+ ip route add 2001:db8:3::0/64 nexthop via $nh_addr
+ ip route add $other_in_addr/128 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+ ip netns add ns1
+ ip link set dev v2 netns ns1
+ in_ns ns1 \
+ ns_init_common v2 2001:db8:4::1 2001:db8:5::1 2001:db8:4::2 \
+ 192.0.2.3 2001:db8:1::3
+}
+
+ns1_destroy()
+{
+ ip netns exec ns1 ip link set dev v2 netns 1
+ ip netns del ns1
+}
+
+ns2_create()
+{
+ ip netns add ns2
+ ip link set dev v4 netns ns2
+ in_ns ns2 \
+ ns_init_common v4 2001:db8:5::1 2001:db8:4::1 2001:db8:5::2 \
+ 192.0.2.4 2001:db8:1::4
+}
+
+ns2_destroy()
+{
+ ip netns exec ns2 ip link set dev v4 netns 1
+ ip netns del ns2
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp1=${NETIFS[p5]}
+ rp2=${NETIFS[p6]}
+
+ vrf_prepare
+ forwarding_enable
+
+ h1_create
+ h2_create
+ switch_create
+
+ ip link add name v1 type veth peer name v2
+ ip link add name v3 type veth peer name v4
+ vrp2_create
+ ns1_create
+ ns2_create
+
+ r1_mac=$(in_ns ns1 mac_get w2)
+ r2_mac=$(in_ns ns2 mac_get w2)
+ h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ns2_destroy
+ ns1_destroy
+ vrp2_destroy
+ ip link del dev v3
+ ip link del dev v1
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ forwarding_restore
+ vrf_cleanup
+}
+
+# For the first round of tests, vx1 is the first device to get
+# attached to the bridge, and at that point the local IP is already
+# configured. Try the other scenario of attaching the devices to a an
+# already-offloaded bridge, and only then assign the local IP.
+reapply_config()
+{
+ log_info "Reapplying configuration"
+
+ bridge fdb del dev vx1 00:00:00:00:00:00 dst 2001:db8:5::1 self
+ bridge fdb del dev vx1 00:00:00:00:00:00 dst 2001:db8:4::1 self
+ ip link set dev vx1 nomaster
+ rp1_unset_addr
+ sleep 5
+
+ ip link set dev vx1 master br1
+ bridge fdb append dev vx1 00:00:00:00:00:00 dst 2001:db8:4::1 self
+ bridge fdb append dev vx1 00:00:00:00:00:00 dst 2001:db8:5::1 self
+ sleep 1
+ rp1_set_addr
+ sleep 5
+}
+
+__ping_ipv4()
+{
+ local vxlan_local_ip=$1; shift
+ local vxlan_remote_ip=$1; shift
+ local src_ip=$1; shift
+ local dst_ip=$1; shift
+ local dev=$1; shift
+ local info=$1; shift
+
+ RET=0
+
+ tc filter add dev $rp1 egress protocol ipv6 pref 1 handle 101 \
+ flower ip_proto udp src_ip $vxlan_local_ip \
+ dst_ip $vxlan_remote_ip dst_port $VXPORT $TC_FLAG action pass
+ # Match ICMP-reply packets after decapsulation, so source IP is
+ # destination IP of the ping and destination IP is source IP of the
+ # ping.
+ tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+ flower src_ip $dst_ip dst_ip $src_ip \
+ $TC_FLAG action pass
+
+ # Send 100 packets and verify that at least 100 packets hit the rule,
+ # to overcome ARP noise.
+ PING_COUNT=100 PING_TIMEOUT=11 ping_do $dev $dst_ip
+ check_err $? "Ping failed"
+
+ tc_check_at_least_x_packets "dev $rp1 egress" 101 10 100
+ check_err $? "Encapsulated packets did not go through router"
+
+ tc_check_at_least_x_packets "dev $swp1 egress" 101 10 100
+ check_err $? "Decapsulated packets did not go through switch"
+
+ log_test "ping: $info"
+
+ tc filter del dev $swp1 egress
+ tc filter del dev $rp1 egress
+}
+
+ping_ipv4()
+{
+ RET=0
+
+ local local_sw_ip=2001:db8:3::1
+ local remote_ns1_ip=2001:db8:4::1
+ local remote_ns2_ip=2001:db8:5::1
+ local h1_ip=192.0.2.1
+ local w2_ns1_ip=192.0.2.3
+ local w2_ns2_ip=192.0.2.4
+
+ ping_test $h1 192.0.2.2 ": local->local"
+
+ __ping_ipv4 $local_sw_ip $remote_ns1_ip $h1_ip $w2_ns1_ip $h1 \
+ "local->remote 1"
+ __ping_ipv4 $local_sw_ip $remote_ns2_ip $h1_ip $w2_ns2_ip $h1 \
+ "local->remote 2"
+}
+
+__ping_ipv6()
+{
+ local vxlan_local_ip=$1; shift
+ local vxlan_remote_ip=$1; shift
+ local src_ip=$1; shift
+ local dst_ip=$1; shift
+ local dev=$1; shift
+ local info=$1; shift
+
+ RET=0
+
+ tc filter add dev $rp1 egress protocol ipv6 pref 1 handle 101 \
+ flower ip_proto udp src_ip $vxlan_local_ip \
+ dst_ip $vxlan_remote_ip dst_port $VXPORT $TC_FLAG action pass
+ # Match ICMP-reply packets after decapsulation, so source IP is
+ # destination IP of the ping and destination IP is source IP of the
+ # ping.
+ tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+ flower src_ip $dst_ip dst_ip $src_ip $TC_FLAG action pass
+
+ # Send 100 packets and verify that at least 100 packets hit the rule,
+ # to overcome neighbor discovery noise.
+ PING_COUNT=100 PING_TIMEOUT=11 ping6_do $dev $dst_ip
+ check_err $? "Ping failed"
+
+ tc_check_at_least_x_packets "dev $rp1 egress" 101 100
+ check_err $? "Encapsulated packets did not go through router"
+
+ tc_check_at_least_x_packets "dev $swp1 egress" 101 100
+ check_err $? "Decapsulated packets did not go through switch"
+
+ log_test "ping6: $info"
+
+ tc filter del dev $swp1 egress
+ tc filter del dev $rp1 egress
+}
+
+ping_ipv6()
+{
+ RET=0
+
+ local local_sw_ip=2001:db8:3::1
+ local remote_ns1_ip=2001:db8:4::1
+ local remote_ns2_ip=2001:db8:5::1
+ local h1_ip=2001:db8:1::1
+ local w2_ns1_ip=2001:db8:1::3
+ local w2_ns2_ip=2001:db8:1::4
+
+ ping6_test $h1 2001:db8:1::2 ": local->local"
+
+ __ping_ipv6 $local_sw_ip $remote_ns1_ip $h1_ip $w2_ns1_ip $h1 \
+ "local->remote 1"
+ __ping_ipv6 $local_sw_ip $remote_ns2_ip $h1_ip $w2_ns2_ip $h1 \
+ "local->remote 2"
+}
+
+maybe_in_ns()
+{
+ echo ${1:+in_ns} $1
+}
+
+__flood_counter_add_del()
+{
+ local add_del=$1; shift
+ local dst_ip=$1; shift
+ local dev=$1; shift
+ local ns=$1; shift
+
+ # Putting the ICMP capture both to HW and to SW will end up
+ # double-counting the packets that are trapped to slow path, such as for
+ # the unicast test. Adding either skip_hw or skip_sw fixes this problem,
+ # but with skip_hw, the flooded packets are not counted at all, because
+ # those are dropped due to MAC address mismatch; and skip_sw is a no-go
+ # for veth-based topologies.
+ #
+ # So try to install with skip_sw and fall back to skip_sw if that fails.
+
+ $(maybe_in_ns $ns) tc filter $add_del dev "$dev" ingress \
+ proto ipv6 pref 100 flower dst_ip $dst_ip ip_proto \
+ icmpv6 skip_sw action pass 2>/dev/null || \
+ $(maybe_in_ns $ns) tc filter $add_del dev "$dev" ingress \
+ proto ipv6 pref 100 flower dst_ip $dst_ip ip_proto \
+ icmpv6 skip_hw action pass
+}
+
+flood_counter_install()
+{
+ __flood_counter_add_del add "$@"
+}
+
+flood_counter_uninstall()
+{
+ __flood_counter_add_del del "$@"
+}
+
+flood_fetch_stat()
+{
+ local dev=$1; shift
+ local ns=$1; shift
+
+ $(maybe_in_ns $ns) tc_rule_stats_get $dev 100 ingress
+}
+
+flood_fetch_stats()
+{
+ local counters=("${@}")
+ local counter
+
+ for counter in "${counters[@]}"; do
+ flood_fetch_stat $counter
+ done
+}
+
+vxlan_flood_test()
+{
+ local mac=$1; shift
+ local dst=$1; shift
+ local -a expects=("${@}")
+
+ local -a counters=($h2 "vx2 ns1" "vx2 ns2")
+ local counter
+ local key
+
+ for counter in "${counters[@]}"; do
+ flood_counter_install $dst $counter
+ done
+
+ local -a t0s=($(flood_fetch_stats "${counters[@]}"))
+ $MZ -6 $h1 -c 10 -d 100msec -p 64 -b $mac -B $dst -t icmp6 type=128 -q
+ sleep 1
+ local -a t1s=($(flood_fetch_stats "${counters[@]}"))
+
+ for key in ${!t0s[@]}; do
+ local delta=$((t1s[$key] - t0s[$key]))
+ local expect=${expects[$key]}
+
+ ((expect == delta))
+ check_err $? "${counters[$key]}: Expected to capture $expect packets, got $delta."
+ done
+
+ for counter in "${counters[@]}"; do
+ flood_counter_uninstall $dst $counter
+ done
+}
+
+__test_flood()
+{
+ local mac=$1; shift
+ local dst=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ vxlan_flood_test $mac $dst 10 10 10
+
+ log_test "VXLAN: $what"
+}
+
+test_flood()
+{
+ __test_flood de:ad:be:ef:13:37 2001:db8:1::100 "flood"
+}
+
+vxlan_fdb_add_del()
+{
+ local add_del=$1; shift
+ local mac=$1; shift
+ local dev=$1; shift
+ local dst=$1; shift
+
+ bridge fdb $add_del dev $dev $mac self static permanent \
+ ${dst:+dst} $dst 2>/dev/null
+ bridge fdb $add_del dev $dev $mac master static 2>/dev/null
+}
+
+__test_unicast()
+{
+ local mac=$1; shift
+ local dst=$1; shift
+ local hit_idx=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ local -a expects=(0 0 0)
+ expects[$hit_idx]=10
+
+ vxlan_flood_test $mac $dst "${expects[@]}"
+
+ log_test "VXLAN: $what"
+}
+
+test_unicast()
+{
+ local -a targets=("$h2_mac $h2"
+ "$r1_mac vx1 2001:db8:4::1"
+ "$r2_mac vx1 2001:db8:5::1")
+ local target
+
+ for target in "${targets[@]}"; do
+ vxlan_fdb_add_del add $target
+ done
+
+ __test_unicast $h2_mac 2001:db8:1::2 0 "local MAC unicast"
+ __test_unicast $r1_mac 2001:db8:1::3 1 "remote MAC 1 unicast"
+ __test_unicast $r2_mac 2001:db8:1::4 2 "remote MAC 2 unicast"
+
+ for target in "${targets[@]}"; do
+ vxlan_fdb_add_del del $target
+ done
+}
+
+vxlan_ping_test()
+{
+ local ping_dev=$1; shift
+ local ping_dip=$1; shift
+ local ping_args=$1; shift
+ local capture_dev=$1; shift
+ local capture_dir=$1; shift
+ local capture_pref=$1; shift
+ local expect=$1; shift
+
+ local t0=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+ ping6_do $ping_dev $ping_dip "$ping_args"
+ local t1=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+ local delta=$((t1 - t0))
+
+ # Tolerate a couple stray extra packets.
+ ((expect <= delta && delta <= expect + 2))
+ check_err $? "$capture_dev: Expected to capture $expect packets, got $delta."
+}
+
+test_ttl()
+{
+ RET=0
+
+ tc filter add dev v1 egress pref 77 protocol ipv6 \
+ flower ip_ttl 99 action pass
+ vxlan_ping_test $h1 2001:db8:1::3 "" v1 egress 77 10
+ tc filter del dev v1 egress pref 77 protocol ipv6
+
+ log_test "VXLAN: envelope TTL"
+}
+
+test_tos()
+{
+ RET=0
+
+ tc filter add dev v1 egress pref 77 protocol ipv6 \
+ flower ip_tos 0x14 action pass
+ vxlan_ping_test $h1 2001:db8:1::3 "-Q 0x14" v1 egress 77 10
+ vxlan_ping_test $h1 2001:db8:1::3 "-Q 0x18" v1 egress 77 0
+ tc filter del dev v1 egress pref 77 protocol ipv6
+
+ log_test "VXLAN: envelope TOS inheritance"
+}
+
+__test_ecn_encap()
+{
+ local q=$1; shift
+ local tos=$1; shift
+
+ RET=0
+
+ tc filter add dev v1 egress pref 77 protocol ipv6 \
+ flower ip_tos $tos action pass
+ sleep 1
+ vxlan_ping_test $h1 2001:db8:1::3 "-Q $q" v1 egress 77 10
+ tc filter del dev v1 egress pref 77 protocol ipv6
+
+ log_test "VXLAN: ECN encap: $q->$tos"
+}
+
+test_ecn_encap()
+{
+ # In accordance with INET_ECN_encapsulate()
+ __test_ecn_encap 0x00 0x00
+ __test_ecn_encap 0x01 0x01
+ __test_ecn_encap 0x02 0x02
+ __test_ecn_encap 0x03 0x02
+}
+
+vxlan_encapped_ping_do()
+{
+ local count=$1; shift
+ local dev=$1; shift
+ local next_hop_mac=$1; shift
+ local dest_ip=$1; shift
+ local dest_mac=$1; shift
+ local inner_tos=$1; shift
+ local outer_tos=$1; shift
+ local saddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+ local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01"
+
+ $MZ -6 $dev -c $count -d 100msec -q \
+ -b $next_hop_mac -B $dest_ip \
+ -t udp tos=$outer_tos,sp=23456,dp=$VXPORT,p=$(:
+ )"08:"$( : VXLAN flags
+ )"00:00:00:"$( : VXLAN reserved
+ )"00:03:e8:"$( : VXLAN VNI
+ )"00:"$( : VXLAN reserved
+ )"$dest_mac:"$( : ETH daddr
+ )"$(mac_get w2):"$( : ETH saddr
+ )"86:dd:"$( : ETH type
+ )"6"$( : IP version
+ )"$inner_tos"$( : Traffic class
+ )"0:00:00:"$( : Flow label
+ )"00:08:"$( : Payload length
+ )"3a:"$( : Next header
+ )"04:"$( : Hop limit
+ )"$saddr:"$( : IP saddr
+ )"$daddr:"$( : IP daddr
+ )"80:"$( : ICMPv6.type
+ )"00:"$( : ICMPv6.code
+ )"00:"$( : ICMPv6.checksum
+ )
+}
+export -f vxlan_encapped_ping_do
+
+vxlan_encapped_ping_test()
+{
+ local ping_dev=$1; shift
+ local nh_dev=$1; shift
+ local ping_dip=$1; shift
+ local inner_tos=$1; shift
+ local outer_tos=$1; shift
+ local stat_get=$1; shift
+ local expect=$1; shift
+
+ local t0=$($stat_get)
+
+ in_ns ns1 \
+ vxlan_encapped_ping_do 10 $ping_dev $(mac_get $nh_dev) \
+ $ping_dip $(mac_get $h1) \
+ $inner_tos $outer_tos
+ sleep 1
+ local t1=$($stat_get)
+ local delta=$((t1 - t0))
+
+ # Tolerate a couple stray extra packets.
+ ((expect <= delta && delta <= expect + 2))
+ check_err $? "Expected to capture $expect packets, got $delta."
+}
+export -f vxlan_encapped_ping_test
+
+__test_ecn_decap()
+{
+ local orig_inner_tos=$1; shift
+ local orig_outer_tos=$1; shift
+ local decapped_tos=$1; shift
+
+ RET=0
+
+ tc filter add dev $h1 ingress pref 77 protocol ipv6 \
+ flower src_ip 2001:db8:1::3 dst_ip 2001:db8:1::1 \
+ ip_tos $decapped_tos action drop
+ sleep 1
+ vxlan_encapped_ping_test v2 v1 2001:db8:3::1 \
+ $orig_inner_tos $orig_outer_tos \
+ "tc_rule_stats_get $h1 77 ingress" 10
+ tc filter del dev $h1 ingress pref 77
+
+ log_test "VXLAN: ECN decap: $orig_outer_tos/$orig_inner_tos->$decapped_tos"
+}
+
+test_ecn_decap_error()
+{
+ local orig_inner_tos="0:0"
+ local orig_outer_tos=03
+
+ RET=0
+
+ vxlan_encapped_ping_test v2 v1 2001:db8:3::1 \
+ $orig_inner_tos $orig_outer_tos \
+ "link_stats_rx_errors_get vx1" 10
+
+ log_test "VXLAN: ECN decap: $orig_outer_tos/$orig_inner_tos->error"
+}
+
+test_ecn_decap()
+{
+ # In accordance with INET_ECN_decapsulate()
+ __test_ecn_decap "0:0" 00 0x00
+ __test_ecn_decap "0:0" 01 0x00
+ __test_ecn_decap "0:0" 02 0x00
+ # 00 03 is tested in test_ecn_decap_error()
+ __test_ecn_decap "0:1" 00 0x01
+ __test_ecn_decap "0:1" 01 0x01
+ __test_ecn_decap "0:1" 02 0x01
+ __test_ecn_decap "0:1" 03 0x03
+ __test_ecn_decap "0:2" 00 0x02
+ __test_ecn_decap "0:2" 01 0x01
+ __test_ecn_decap "0:2" 02 0x02
+ __test_ecn_decap "0:2" 03 0x03
+ __test_ecn_decap "0:3" 00 0x03
+ __test_ecn_decap "0:3" 01 0x03
+ __test_ecn_decap "0:3" 02 0x03
+ __test_ecn_decap "0:3" 03 0x03
+ test_ecn_decap_error
+}
+
+test_all()
+{
+ log_info "Running tests with UDP port $VXPORT"
+ tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
projects / linux.git / commitdiff