FM / forwarding

/usr/src/linux-headers-5.15.0-181/tools/testing/selftests/net/forwarding/

/usr/src/linux-headers-5.15.0-181/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	20863	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-5.15.0-181/tools/testing/selftests/net/forwarding/router_mpath_nh.sh (9828B)

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

ALL_TESTS="
	ping_ipv4
	ping_ipv6
	multipath_test
	ping_ipv4_blackhole
	ping_ipv6_blackhole
"
NUM_NETIFS=8
source lib.sh

h1_create()
{
	vrf_create "vrf-h1"
	ip link set dev $h1 master vrf-h1

ip link set dev vrf-h1 up
	ip link set dev $h1 up

ip address add 192.0.2.2/24 dev $h1
	ip address add 2001:db8:1::2/64 dev $h1

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
}

h1_destroy()
{
	ip route del 2001:db8:2::/64 vrf vrf-h1
	ip route del 198.51.100.0/24 vrf vrf-h1

ip address del 2001:db8:1::2/64 dev $h1
	ip address del 192.0.2.2/24 dev $h1

ip link set dev $h1 down
	vrf_destroy "vrf-h1"
}

h2_create()
{
	vrf_create "vrf-h2"
	ip link set dev $h2 master vrf-h2

ip link set dev vrf-h2 up
	ip link set dev $h2 up

ip address add 198.51.100.2/24 dev $h2
	ip address add 2001:db8:2::2/64 dev $h2

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
}

h2_destroy()
{
	ip route del 2001:db8:1::/64 vrf vrf-h2
	ip route del 192.0.2.0/24 vrf vrf-h2

ip address del 2001:db8:2::2/64 dev $h2
	ip address del 198.51.100.2/24 dev $h2

ip link set dev $h2 down
	vrf_destroy "vrf-h2"
}

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

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

ip address add 192.0.2.1/24 dev $rp11
	ip address add 2001:db8:1::1/64 dev $rp11

ip address add 169.254.2.12/24 dev $rp12
	ip address add fe80:2::12/64 dev $rp12

ip address add 169.254.3.13/24 dev $rp13
	ip address add fe80:3::13/64 dev $rp13
}

router1_destroy()
{
	ip route del 2001:db8:2::/64 vrf vrf-r1
	ip route del 198.51.100.0/24 vrf vrf-r1

ip address del fe80:3::13/64 dev $rp13
	ip address del 169.254.3.13/24 dev $rp13

ip address del fe80:2::12/64 dev $rp12
	ip address del 169.254.2.12/24 dev $rp12

ip address del 2001:db8:1::1/64 dev $rp11
	ip address del 192.0.2.1/24 dev $rp11

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

ip link set dev $rp13 down
	ip link set dev $rp12 down
	ip link set dev $rp11 down

vrf_destroy "vrf-r1"
}

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

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

ip address add 198.51.100.1/24 dev $rp21
	ip address add 2001:db8:2::1/64 dev $rp21

ip address add 169.254.2.22/24 dev $rp22
	ip address add fe80:2::22/64 dev $rp22

ip address add 169.254.3.23/24 dev $rp23
	ip address add fe80:3::23/64 dev $rp23
}

router2_destroy()
{
	ip route del 2001:db8:1::/64 vrf vrf-r2
	ip route del 192.0.2.0/24 vrf vrf-r2

ip address del fe80:3::23/64 dev $rp23
	ip address del 169.254.3.23/24 dev $rp23

ip address del fe80:2::22/64 dev $rp22
	ip address del 169.254.2.22/24 dev $rp22

ip address del 2001:db8:2::1/64 dev $rp21
	ip address del 198.51.100.1/24 dev $rp21

ip nexthop del id 201
	ip nexthop del id 202
	ip nexthop del id 204
	ip nexthop del id 205

ip link set dev $rp23 down
	ip link set dev $rp22 down
	ip link set dev $rp21 down

vrf_destroy "vrf-r2"
}

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

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

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

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
}

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

# 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

t0_rp12=$(link_stats_tx_packets_get $rp12)
	t0_rp13=$(link_stats_tx_packets_get $rp13)

ip vrf exec vrf-h1 $MZ $h1 -q -p 64 -A 192.0.2.2 -B 198.51.100.2 \
		-d 1msec -t udp "sp=1024,dp=0-32768"

t1_rp12=$(link_stats_tx_packets_get $rp12)
	t1_rp13=$(link_stats_tx_packets_get $rp13)

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

# Restore settings.
	ip nexthop replace id 103 group 101/102
	sysctl_restore net.ipv4.fib_multipath_hash_policy
}

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

ip nexthop replace id 106 group 104,$weight_rp12/105,$weight_rp13

t0_rp12=$(link_stats_tx_packets_get $rp12)
	t0_rp13=$(link_stats_tx_packets_get $rp13)

$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"

t1_rp12=$(link_stats_tx_packets_get $rp12)
	t1_rp13=$(link_stats_tx_packets_get $rp13)

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

ip nexthop replace id 106 group 104/105

sysctl_restore net.ipv6.fib_multipath_hash_policy
}

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

ip nexthop replace id 106 group 104,$weight_rp12/105,$weight_rp13

t0_rp12=$(link_stats_tx_packets_get $rp12)
	t0_rp13=$(link_stats_tx_packets_get $rp13)

# 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

t1_rp12=$(link_stats_tx_packets_get $rp12)
	t1_rp13=$(link_stats_tx_packets_get $rp13)

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

ip nexthop replace id 106 group 104/105
}

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

log_info "Running IPv4 multipath tests with IPv6 link-local nexthops"
	ip nexthop replace id 101 via fe80:2::22 dev $rp12
	ip nexthop replace id 102 via fe80:3::23 dev $rp13

multipath4_test "ECMP" 1 1
	multipath4_test "Weighted MP 2:1" 2 1
	multipath4_test "Weighted MP 11:45" 11 45

ip nexthop replace id 102 via 169.254.3.23 dev $rp13
	ip nexthop replace id 101 via 169.254.2.22 dev $rp12

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

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
}

ping_ipv4_blackhole()
{
	RET=0

ip nexthop add id 1001 blackhole
	ip nexthop add id 1002 group 1001

ip route replace 198.51.100.0/24 vrf vrf-r1 nhid 1001
	ping_do $h1 198.51.100.2
	check_fail $? "ping did not fail when using a blackhole nexthop"

ip route replace 198.51.100.0/24 vrf vrf-r1 nhid 1002
	ping_do $h1 198.51.100.2
	check_fail $? "ping did not fail when using a blackhole nexthop group"

ip route replace 198.51.100.0/24 vrf vrf-r1 nhid 103
	ping_do $h1 198.51.100.2
	check_err $? "ping failed with a valid nexthop"

log_test "IPv4 blackhole ping"

ip nexthop del id 1002
	ip nexthop del id 1001
}

ping_ipv6_blackhole()
{
	RET=0

ip -6 nexthop add id 1001 blackhole
	ip nexthop add id 1002 group 1001

ip route replace 2001:db8:2::/64 vrf vrf-r1 nhid 1001
	ping6_do $h1 2001:db8:2::2
	check_fail $? "ping did not fail when using a blackhole nexthop"

ip route replace 2001:db8:2::/64 vrf vrf-r1 nhid 1002
	ping6_do $h1 2001:db8:2::2
	check_fail $? "ping did not fail when using a blackhole nexthop group"

ip route replace 2001:db8:2::/64 vrf vrf-r1 nhid 106
	ping6_do $h1 2001:db8:2::2
	check_err $? "ping failed with a valid nexthop"

log_test "IPv6 blackhole ping"

ip nexthop del id 1002
	ip -6 nexthop del id 1001
}

setup_prepare()
{
	h1=${NETIFS[p1]}
	rp11=${NETIFS[p2]}

rp12=${NETIFS[p3]}
	rp22=${NETIFS[p4]}

rp13=${NETIFS[p5]}
	rp23=${NETIFS[p6]}

rp21=${NETIFS[p7]}
	h2=${NETIFS[p8]}

vrf_prepare

h1_create
	h2_create

router1_create
	router2_create

forwarding_enable
}

cleanup()
{
	pre_cleanup

forwarding_restore

router2_destroy
	router1_destroy

h2_destroy
	h1_destroy

vrf_cleanup
}

ping_ipv4()
{
	ping_test $h1 198.51.100.2
}

ping_ipv6()
{
	ping6_test $h1 2001:db8:2::2
}

ip nexthop ls >/dev/null 2>&1
if [ $? -ne 0 ]; then
	echo "Nexthop objects not supported; skipping tests"
	exit $ksft_skip
fi

trap cleanup EXIT

setup_prepare
setup_wait
routing_nh_obj

tests_run

exit $EXIT_STATUS

cmd: