FM / forwarding

/usr/src/linux-headers-5.15.0-190/tools/testing/selftests/net/forwarding/

/usr/src/linux-headers-5.15.0-190/tools/testing/selftests/net/forwarding

Name	Size	Mode	Actions
bridge_igmp.sh	15152	0755	edit dl rm
bridge_mld.sh	16563	0755	edit dl rm
bridge_port_isolation.sh	2378	0755	edit dl rm
bridge_sticky_fdb.sh	1159	0755	edit dl rm
bridge_vlan_aware.sh	2524	0755	edit dl rm
bridge_vlan_unaware.sh	1248	0755	edit dl rm
custom_multipath_hash.sh	9993	0755	edit dl rm
devlink_lib.sh	13118	0644	edit dl rm
dual_vxlan_bridge.sh	11439	0755	edit dl rm
ethtool.sh	6745	0755	edit dl rm
ethtool_extended_state.sh	1923	0755	edit dl rm
ethtool_lib.sh	2815	0644	edit dl rm
fib_offload_lib.sh	25157	0644	edit dl rm
gre_custom_multipath_hash.sh	12768	0755	edit dl rm
gre_inner_v4_multipath.sh	7730	0755	edit dl rm
gre_inner_v6_multipath.sh	7843	0755	edit dl rm
gre_multipath.sh	6439	0755	edit dl rm
gre_multipath_nh.sh	9301	0755	edit dl rm
gre_multipath_nh_res.sh	9491	0755	edit dl rm
ip6gre_custom_multipath_hash.sh	13038	0755	edit dl rm
ip6gre_inner_v4_multipath.sh	7956	0755	edit dl rm
ip6gre_inner_v6_multipath.sh	8069	0755	edit dl rm
ip6_forward_instats_vrf.sh	3092	0755	edit dl rm
ipip_flat_gre.sh	838	0755	edit dl rm
ipip_flat_gre_key.sh	860	0755	edit dl rm
ipip_flat_gre_keys.sh	886	0755	edit dl rm
ipip_hier_gre.sh	887	0755	edit dl rm
ipip_hier_gre_key.sh	910	0755	edit dl rm
ipip_hier_gre_keys.sh	938	0755	edit dl rm
ipip_lib.sh	8557	0644	edit dl rm
lib.sh	28668	0644	edit dl rm
loopback.sh	1589	0755	edit dl rm
Makefile	1718	0644	edit dl rm
mirror_gre.sh	3366	0755	edit dl rm
mirror_gre_bound.sh	5929	0755	edit dl rm
mirror_gre_bridge_1d.sh	4504	0755	edit dl rm
mirror_gre_bridge_1d_vlan.sh	2717	0755	edit dl rm
mirror_gre_bridge_1q.sh	4380	0755	edit dl rm
mirror_gre_bridge_1q_lag.sh	7485	0755	edit dl rm
mirror_gre_changes.sh	5824	0755	edit dl rm
mirror_gre_flower.sh	2891	0755	edit dl rm
mirror_gre_lag_lacp.sh	7458	0755	edit dl rm
mirror_gre_lib.sh	2565	0644	edit dl rm
mirror_gre_neigh.sh	2338	0755	edit dl rm
mirror_gre_nh.sh	2974	0755	edit dl rm
mirror_gre_topo_lib.sh	3524	0644	edit dl rm
mirror_gre_vlan.sh	1715	0755	edit dl rm
mirror_gre_vlan_bridge_1q.sh	9117	0755	edit dl rm
mirror_lib.sh	2964	0644	edit dl rm
mirror_topo_lib.sh	2758	0644	edit dl rm
mirror_vlan.sh	2303	0755	edit dl rm
pedit_dsfield.sh	6789	0755	edit dl rm
pedit_l4port.sh	4564	0755	edit dl rm
q_in_vni.sh	10926	0755	edit dl rm
router.sh	6322	0755	edit dl rm
router_bridge.sh	1794	0755	edit dl rm
router_bridge_vlan.sh	2108	0755	edit dl rm
router_broadcast.sh	5142	0755	edit dl rm
router_mpath_nh.sh	9828	0755	edit dl rm
router_mpath_nh_res.sh	10223	0755	edit dl rm
router_multicast.sh	11597	0755	edit dl rm
router_multipath.sh	8449	0755	edit dl rm
router_nh.sh	2627	0755	edit dl rm
router_vid_1.sh	2153	0755	edit dl rm
sch_ets.sh	781	0755	edit dl rm
sch_ets_core.sh	7456	0644	edit dl rm
sch_ets_tests.sh	4044	0644	edit dl rm
sch_red.sh	11358	0755	edit dl rm
sch_tbf_core.sh	5140	0644	edit dl rm
sch_tbf_ets.sh	118	0755	edit dl rm
sch_tbf_etsprio.sh	711	0644	edit dl rm
sch_tbf_prio.sh	118	0755	edit dl rm
sch_tbf_root.sh	422	0755	edit dl rm
skbedit_priority.sh	3901	0755	edit dl rm
tc_actions.sh	6606	0755	edit dl rm
tc_chains.sh	4945	0755	edit dl rm
tc_common.sh	524	0644	edit dl rm
tc_flower.sh	21752	0755	edit dl rm
tc_flower_router.sh	3096	0755	edit dl rm
tc_mpls_l2vpn.sh	5146	0755	edit dl rm
tc_police.sh	12111	0755	edit dl rm
tc_shblocks.sh	2748	0755	edit dl rm
tc_vlan_modify.sh	3246	0755	edit dl rm
vxlan_asymmetric.sh	17978	0755	edit dl rm
vxlan_bridge_1d.sh	21064	0755	edit dl rm
vxlan_bridge_1d_port_8472.sh	172	0755	edit dl rm
vxlan_bridge_1q.sh	24053	0755	edit dl rm
vxlan_bridge_1q_port_8472.sh	172	0755	edit dl rm
vxlan_symmetric.sh	18488	0755	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh (21064B)

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

# +--------------------+                               +----------------------+
# | H1 (vrf)           |                               |             H2 (vrf) |
# |    + $h1           |                               |  + $h2               |
# |    | 192.0.2.1/28  |                               |  | 192.0.2.2/28      |
# +----|---------------+                               +--|-------------------+
#      |                                                  |
# +----|--------------------------------------------------|-------------------+
# | SW |                                                  |                   |
# | +--|--------------------------------------------------|-----------------+ |
# | |  + $swp1                   BR1 (802.1d)             + $swp2           | |
# | |                                                                       | |
# | |  + vx1 (vxlan)                                                        | |
# | |    local 192.0.2.17                                                   | |
# | |    remote 192.0.2.34 192.0.2.50                                       | |
# | |    id 1000 dstport $VXPORT                                            | |
# | +-----------------------------------------------------------------------+ |
# |                                                                           |
# |  192.0.2.32/28 via 192.0.2.18                                             |
# |  192.0.2.48/28 via 192.0.2.18                                             |
# |                                                                           |
# |    + $rp1                                                                 |
# |    | 192.0.2.17/28                                                        |
# +----|----------------------------------------------------------------------+
#      |
# +----|--------------------------------------------------------+
# |    |                                             VRP2 (vrf) |
# |    + $rp2                                                   |
# |      192.0.2.18/28                                          |
# |                                                             |   (maybe) HW
# =============================================================================
# |                                                             |  (likely) SW
# |    + v1 (veth)                             + v3 (veth)      |
# |    | 192.0.2.33/28                         | 192.0.2.49/28  |
# +----|---------------------------------------|----------------+
#      |                                       |
# +----|------------------------------+   +----|------------------------------+
# |    + v2 (veth)        NS1 (netns) |   |    + v4 (veth)        NS2 (netns) |
# |      192.0.2.34/28                |   |      192.0.2.50/28                |
# |                                   |   |                                   |
# |   192.0.2.16/28 via 192.0.2.33    |   |   192.0.2.16/28 via 192.0.2.49    |
# |   192.0.2.50/32 via 192.0.2.33    |   |   192.0.2.34/32 via 192.0.2.49    |
# |                                   |   |                                   |
# | +-------------------------------+ |   | +-------------------------------+ |
# | |                  BR2 (802.1d) | |   | |                  BR2 (802.1d) | |
# | |  + vx2 (vxlan)                | |   | |  + vx2 (vxlan)                | |
# | |    local 192.0.2.34           | |   | |    local 192.0.2.50           | |
# | |    remote 192.0.2.17          | |   | |    remote 192.0.2.17          | |
# | |    remote 192.0.2.50          | |   | |    remote 192.0.2.34          | |
# | |    id 1000 dstport $VXPORT    | |   | |    id 1000 dstport $VXPORT    | |
# | |                               | |   | |                               | |
# | |  + w1 (veth)                  | |   | |  + w1 (veth)                  | |
# | +--|----------------------------+ |   | +--|----------------------------+ |
# |    |                              |   |    |                              |
# | +--|----------------------------+ |   | +--|----------------------------+ |
# | |  |                  VW2 (vrf) | |   | |  |                  VW2 (vrf) | |
# | |  + w2 (veth)                  | |   | |  + w2 (veth)                  | |
# | |    192.0.2.3/28               | |   | |    192.0.2.4/28               | |
# | +-------------------------------+ |   | +-------------------------------+ |
# +-----------------------------------+   +-----------------------------------+

: ${VXPORT:=4789}
export VXPORT

: ${ALL_TESTS:="
	ping_ipv4
	test_flood
	test_unicast
	test_ttl
	test_tos
	test_ecn_encap
	test_ecn_decap
	reapply_config
	ping_ipv4
	test_flood
	test_unicast
	test_learning
    "}

NUM_NETIFS=6
source lib.sh

h1_create()
{
	simple_if_init $h1 192.0.2.1/28
	tc qdisc add dev $h1 clsact
}

h1_destroy()
{
	tc qdisc del dev $h1 clsact
	simple_if_fini $h1 192.0.2.1/28
}

h2_create()
{
	simple_if_init $h2 192.0.2.2/28
	tc qdisc add dev $h2 clsact
}

h2_destroy()
{
	tc qdisc del dev $h2 clsact
	simple_if_fini $h2 192.0.2.2/28
}

rp1_set_addr()
{
	ip address add dev $rp1 192.0.2.17/28

ip route add 192.0.2.32/28 nexthop via 192.0.2.18
	ip route add 192.0.2.48/28 nexthop via 192.0.2.18
}

rp1_unset_addr()
{
	ip route del 192.0.2.48/28 nexthop via 192.0.2.18
	ip route del 192.0.2.32/28 nexthop via 192.0.2.18

ip address del dev $rp1 192.0.2.17/28
}

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

ip link add name vx1 type vxlan id 1000		\
		local 192.0.2.17 dstport "$VXPORT"	\
		nolearning noudpcsum 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

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 192.0.2.34 self
	bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
}

switch_destroy()
{
	rp1_unset_addr
	ip link set dev $rp1 down

bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
	bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self

ip link set dev vx1 nomaster
	ip link set dev vx1 down
	ip link del dev vx1

ip link set dev $swp2 down
	ip link set dev $swp2 nomaster

ip link set dev $swp1 down
	ip link set dev $swp1 nomaster

ip link set dev br1 down
	ip link del dev br1
}

vrp2_create()
{
	simple_if_init $rp2 192.0.2.18/28
	__simple_if_init v1 v$rp2 192.0.2.33/28
	__simple_if_init v3 v$rp2 192.0.2.49/28
	tc qdisc add dev v1 clsact
}

vrp2_destroy()
{
	tc qdisc del dev v1 clsact
	__simple_if_fini v3 192.0.2.49/28
	__simple_if_fini v1 192.0.2.33/28
	simple_if_fini $rp2 192.0.2.18/28
}

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=$1; shift

ip link set dev $in_if up
	ip address add dev $in_if $in_addr/28
	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"
	ip link set dev vx2 up
	bridge fdb append dev vx2 00:00:00:00:00:00 dst 192.0.2.17 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/28

ip route add 192.0.2.16/28 nexthop via $nh_addr
	ip route add $other_in_addr/32 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 192.0.2.34 192.0.2.50 192.0.2.33 192.0.2.3
}

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 192.0.2.50 192.0.2.34 192.0.2.49 192.0.2.4
}

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 that at the point that the local IP is already configured. Try the
# other scenario of attaching the device to an already-offloaded bridge, and
# only then attach the local IP.
reapply_config()
{
	echo "Reapplying configuration"

bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
	bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
	rp1_unset_addr
	ip link set dev vx1 nomaster
	sleep 5

ip link set dev vx1 master br1
	bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
	bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
	sleep 1
	rp1_set_addr
	sleep 5
}

ping_ipv4()
{
	ping_test $h1 192.0.2.2 ": local->local"
	ping_test $h1 192.0.2.3 ": local->remote 1"
	ping_test $h1 192.0.2.4 ": local->remote 2"
}

maybe_in_ns()
{
	echo ${1:+in_ns} $1
}

__flood_counter_add_del()
{
	local add_del=$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) __icmp_capture_add_del          \
			   $add_del 100 "" $dev skip_sw 2>/dev/null || \
	$(maybe_in_ns $ns) __icmp_capture_add_del          \
			   $add_del 100 "" $dev skip_hw
}

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 $counter
	done

local -a t0s=($(flood_fetch_stats "${counters[@]}"))
	$MZ $h1 -c 10 -d 100msec -p 64 -b $mac -B $dst -t icmp -q
	sleep 1
	local -a t1s=($(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 $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:13:37 192.0.2.100 "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 192.0.2.34"
			  "$r2_mac vx1 192.0.2.50")
	local target

for target in "${targets[@]}"; do
		vxlan_fdb_add_del add $target
	done

__test_unicast $h2_mac 192.0.2.2 0 "local MAC unicast"
	__test_unicast $r1_mac 192.0.2.3 1 "remote MAC 1 unicast"
	__test_unicast $r2_mac 192.0.2.4 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)
	ping_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 prot ip \
		flower ip_ttl 99 action pass
	vxlan_ping_test $h1 192.0.2.3 "" v1 egress 77 10
	tc filter del dev v1 egress pref 77 prot ip

log_test "VXLAN: envelope TTL"
}

test_tos()
{
	RET=0

tc filter add dev v1 egress pref 77 prot ip \
		flower ip_tos 0x14 action pass
	vxlan_ping_test $h1 192.0.2.3 "-Q 0x14" v1 egress 77 10
	vxlan_ping_test $h1 192.0.2.3 "-Q 0x18" v1 egress 77 0
	tc filter del dev v1 egress pref 77 prot ip

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 prot ip \
		flower ip_tos $tos action pass
	sleep 1
	vxlan_ping_test $h1 192.0.2.3 "-Q $q" v1 egress 77 10
	tc filter del dev v1 egress pref 77 prot ip

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 ipv4hdr=$(:
		    )"45:"$(                      : IP version + IHL
		    )"$inner_tos:"$(              : IP TOS
		    )"00:54:"$(                   : IP total length
		    )"99:83:"$(                   : IP identification
		    )"40:00:"$(                   : IP flags + frag off
		    )"40:"$(                      : IP TTL
		    )"01:"$(                      : IP proto
		    )"CHECKSUM:"$(                : IP header csum
		    )"c0:00:02:03:"$(             : IP saddr: 192.0.2.3
		    )"c0:00:02:01"$(              : IP daddr: 192.0.2.1
		)
	local checksum=$(payload_template_calc_checksum "$ipv4hdr")
	ipv4hdr=$(payload_template_expand_checksum "$ipv4hdr" $checksum)

$MZ $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
		    )"08:00:"$(                   : ETH type
		    )"$ipv4hdr:"$(                : IPv4 header
		    )"08:"$(                      : ICMP type
		    )"00:"$(                      : ICMP code
		    )"8b:f2:"$(                   : ICMP csum
		    )"1f:6a:"$(                   : ICMP request identifier
		    )"00:01:"$(                   : ICMP request sequence number
		    )"4f:ff:c5:5b:00:00:00:00:"$( : ICMP payload
		    )"6d:74:0b:00:00:00:00:00:"$( :
		    )"10:11:12:13:14:15:16:17:"$( :
		    )"18:19:1a:1b:1c:1d:1e:1f:"$( :
		    )"20:21:22:23:24:25:26:27:"$( :
		    )"28:29:2a:2b:2c:2d:2e:2f:"$( :
		    )"30:31:32:33:34:35:36:37"
}
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

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 prot ip \
		flower ip_tos $decapped_tos action drop
	sleep 1
	vxlan_encapped_ping_test v2 v1 192.0.2.17 \
				 $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=00
	local orig_outer_tos=03

RET=0

vxlan_encapped_ping_test v2 v1 192.0.2.17 \
				 $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 00 00 0x00
	__test_ecn_decap 00 01 0x00
	__test_ecn_decap 00 02 0x00
	# 00 03 is tested in test_ecn_decap_error()
	__test_ecn_decap 01 00 0x01
	__test_ecn_decap 01 01 0x01
	__test_ecn_decap 01 02 0x01
	__test_ecn_decap 01 03 0x03
	__test_ecn_decap 02 00 0x02
	__test_ecn_decap 02 01 0x01
	__test_ecn_decap 02 02 0x02
	__test_ecn_decap 02 03 0x03
	__test_ecn_decap 03 00 0x03
	__test_ecn_decap 03 01 0x03
	__test_ecn_decap 03 02 0x03
	__test_ecn_decap 03 03 0x03
	test_ecn_decap_error
}

test_learning()
{
	local mac=de:ad:be:ef:13:37
	local dst=192.0.2.100

# Enable learning on the VxLAN device and set ageing time to 10 seconds
	ip link set dev br1 type bridge ageing_time 1000
	ip link set dev vx1 type vxlan ageing 10
	ip link set dev vx1 type vxlan learning
	reapply_config

# Check that flooding works
	RET=0

vxlan_flood_test $mac $dst 10 10 10

log_test "VXLAN: flood before learning"

# Send a packet with source mac set to $mac from host w2 and check that
	# a corresponding entry is created in VxLAN device vx1
	RET=0

in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
		-t icmp -q
	sleep 1

bridge fdb show brport vx1 | grep $mac | grep -q self
	check_err $?
	bridge fdb show brport vx1 | grep $mac | grep -q -v self
	check_err $?

log_test "VXLAN: show learned FDB entry"

# Repeat first test and check that packets only reach host w2 in ns1
	RET=0

vxlan_flood_test $mac $dst 0 10 0

log_test "VXLAN: learned FDB entry"

# Delete the learned FDB entry from the VxLAN and bridge devices and
	# check that packets are flooded
	RET=0

bridge fdb del dev vx1 $mac master self
	sleep 1

vxlan_flood_test $mac $dst 10 10 10

log_test "VXLAN: deletion of learned FDB entry"

# Re-learn the first FDB entry and check that it is correctly aged-out
	RET=0

in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
		-t icmp -q
	sleep 1

bridge fdb show brport vx1 | grep $mac | grep -q self
	check_err $?
	bridge fdb show brport vx1 | grep $mac | grep -q -v self
	check_err $?

vxlan_flood_test $mac $dst 0 10 0

sleep 20

bridge fdb show brport vx1 | grep $mac | grep -q self
	check_fail $?
	bridge fdb show brport vx1 | grep $mac | grep -q -v self
	check_fail $?

vxlan_flood_test $mac $dst 10 10 10

log_test "VXLAN: Ageing of learned FDB entry"

# Toggle learning on the bridge port and check that the bridge's FDB
	# is populated only when it should
	RET=0

ip link set dev vx1 type bridge_slave learning off

in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
		-t icmp -q
	sleep 1

bridge fdb show brport vx1 | grep $mac | grep -q -v self
	check_fail $?

ip link set dev vx1 type bridge_slave learning on

in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
		-t icmp -q
	sleep 1

bridge fdb show brport vx1 | grep $mac | grep -q -v self
	check_err $?

log_test "VXLAN: learning toggling on bridge port"

# Restore previous settings
	ip link set dev vx1 type vxlan nolearning
	ip link set dev vx1 type vxlan ageing 300
	ip link set dev br1 type bridge ageing_time 30000
	reapply_config
}

test_all()
{
	echo "Running tests with UDP port $VXPORT"
	tests_run
}

trap cleanup EXIT

setup_prepare
setup_wait
test_all

exit $EXIT_STATUS

cmd: