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/fib_offload_lib.sh (25157B)

# SPDX-License-Identifier: GPL-2.0
#
# Various helpers and tests to verify FIB offload.

__fib_trap_check()
{
	local ns=$1; shift
	local family=$1; shift
	local route=$1; shift
	local should_fail=$1; shift
	local ret

ip -n $ns -j -p -$family route show $route \
		| jq -e '.[]["flags"] | contains(["trap"])' &> /dev/null
	ret=$?
	if [[ $should_fail == "true" ]]; then
		if [[ $ret -ne 0 ]]; then
			return 0
		else
			return 1
		fi
	fi

return $ret
}

fib_trap_check()
{
	local ns=$1; shift
	local family=$1; shift
	local route=$1; shift
	local should_fail=$1; shift

busywait 5000 __fib_trap_check $ns $family "$route" $should_fail
}

fib4_trap_check()
{
	local ns=$1; shift
	local route=$1; shift
	local should_fail=$1; shift

fib_trap_check $ns 4 "$route" $should_fail
}

fib6_trap_check()
{
	local ns=$1; shift
	local route=$1; shift
	local should_fail=$1; shift

fib_trap_check $ns 6 "$route" $should_fail
}

fib_ipv4_identical_routes_test()
{
	local ns=$1; shift
	local i

RET=0

for i in $(seq 1 3); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
	done

ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route append 192.0.2.0/24 dev dummy2 tos 0 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy2 tos 0 metric 1024" true
	check_err $? "Appended route in hardware when should not"

ip -n $ns route prepend 192.0.2.0/24 dev dummy3 tos 0 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy3 tos 0 metric 1024" false
	check_err $? "Prepended route not in hardware when should"

fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" true
	check_err $? "Route was not replaced in hardware by prepended one"

log_test "IPv4 identical routes"

for i in $(seq 1 3); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv4_tos_test()
{
	local ns=$1; shift

RET=0

ip -n $ns link add name dummy1 type dummy
	ip -n $ns link set dev dummy1 up

ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 2 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 2 metric 1024" false
	check_err $? "Highest TOS route not in hardware when should"

fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" true
	check_err $? "Lowest TOS route still in hardware when should not"

ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 1 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 1 metric 1024" true
	check_err $? "Middle TOS route in hardware when should not"

log_test "IPv4 routes with TOS"

ip -n $ns link del dev dummy1
}

fib_ipv4_metric_test()
{
	local ns=$1; shift

RET=0

ip -n $ns link add name dummy1 type dummy
	ip -n $ns link set dev dummy1 up

ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1022
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1022" false
	check_err $? "Lowest metric route not in hardware when should"

fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" true
	check_err $? "Highest metric route still in hardware when should not"

ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1023
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1023" true
	check_err $? "Middle metric route in hardware when should not"

log_test "IPv4 routes with metric"

ip -n $ns link del dev dummy1
}

fib_ipv4_replace_test()
{
	local ns=$1; shift
	local i

RET=0

for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
	done

ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route replace 192.0.2.0/24 dev dummy2 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1024" false
	check_err $? "Replacement route not in hardware when should"

# Add a route with an higher metric and make sure that replacing it
	# does not affect the lower metric one.
	ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1025
	ip -n $ns route replace 192.0.2.0/24 dev dummy2 metric 1025

fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1024" false
	check_err $? "Lowest metric route not in hardware when should"
	fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1025" true
	check_err $? "Highest metric route in hardware when should not"

log_test "IPv4 route replace"

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv4_delete_test()
{
	local ns=$1; shift
	local metric

RET=0

ip -n $ns link add name dummy1 type dummy
	ip -n $ns link set dev dummy1 up

# Insert multiple routes with the same prefix and length and varying
	# metrics. Make sure that throughout delete operations the lowest
	# metric route is the one in hardware.
	for metric in $(seq 1024 1026); do
		ip -n $ns route add 192.0.2.0/24 dev dummy1 metric $metric
	done

fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route del 192.0.2.0/24 dev dummy1 metric 1024
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" false
	check_err $? "Lowest metric route not in hardware when should"

ip -n $ns route del 192.0.2.0/24 dev dummy1 metric 1026
	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" false
	check_err $? "Sole route not in hardware when should"

log_test "IPv4 route delete"

ip -n $ns link del dev dummy1
}

fib_ipv4_plen_test()
{
	local ns=$1; shift

RET=0

ip -n $ns link add name dummy1 type dummy
	ip -n $ns link set dev dummy1 up

# Add two routes with the same key and different prefix length and
	# make sure both are in hardware. It can be verified that both are
	# sharing the same leaf by checking the /proc/net/fib_trie
	ip -n $ns route add 192.0.2.0/24 dev dummy1
	ip -n $ns route add 192.0.2.0/25 dev dummy1

fib4_trap_check $ns "192.0.2.0/24 dev dummy1" false
	check_err $? "/24 not in hardware when should"

fib4_trap_check $ns "192.0.2.0/25 dev dummy1" false
	check_err $? "/25 not in hardware when should"

log_test "IPv4 routes with different prefix length"

ip -n $ns link del dev dummy1
}

fib_ipv4_replay_metric_test()
{
	local ns=$1; shift
	local devlink_dev=$1; shift

RET=0

ip -n $ns link add name dummy1 type dummy
	ip -n $ns link set dev dummy1 up

ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
	ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1025

devlink -N $ns dev reload $devlink_dev

fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
	check_err $? "Lowest metric route not in hardware when should"

fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" true
	check_err $? "Highest metric route in hardware when should not"

log_test "IPv4 routes replay - metric"

ip -n $ns link del dev dummy1
}

fib_ipv4_replay_tos_test()
{
	local ns=$1; shift
	local devlink_dev=$1; shift

RET=0

ip -n $ns link add name dummy1 type dummy
	ip -n $ns link set dev dummy1 up

ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0
	ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 1

devlink -N $ns dev reload $devlink_dev

fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 1" false
	check_err $? "Highest TOS route not in hardware when should"

fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0" true
	check_err $? "Lowest TOS route in hardware when should not"

log_test "IPv4 routes replay - TOS"

ip -n $ns link del dev dummy1
}

fib_ipv4_replay_plen_test()
{
	local ns=$1; shift
	local devlink_dev=$1; shift

RET=0

ip -n $ns link add name dummy1 type dummy
	ip -n $ns link set dev dummy1 up

ip -n $ns route add 192.0.2.0/24 dev dummy1
	ip -n $ns route add 192.0.2.0/25 dev dummy1

devlink -N $ns dev reload $devlink_dev

fib4_trap_check $ns "192.0.2.0/24 dev dummy1" false
	check_err $? "/24 not in hardware when should"

fib4_trap_check $ns "192.0.2.0/25 dev dummy1" false
	check_err $? "/25 not in hardware when should"

log_test "IPv4 routes replay - prefix length"

ip -n $ns link del dev dummy1
}

fib_ipv4_flush_test()
{
	local ns=$1; shift
	local metric

RET=0

ip -n $ns link add name dummy1 type dummy
	ip -n $ns link set dev dummy1 up

# Exercise the routes flushing code paths by inserting various
	# prefix routes on a netdev and then deleting it.
	for metric in $(seq 1 20); do
		ip -n $ns route add 192.0.2.0/24 dev dummy1 metric $metric
	done

ip -n $ns link del dev dummy1

log_test "IPv4 routes flushing"
}

fib_ipv6_add_test()
{
	local ns=$1; shift

RET=0

for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
	done

ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route append 2001:db8:1::/64 dev dummy2 metric 1024
	fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" true
	check_err $? "Route in hardware when should not"

fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware after appending route"

log_test "IPv6 single route add"

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_metric_test()
{
	local ns=$1; shift

RET=0

ip -n $ns link add name dummy1 type dummy
	ip -n $ns link set dev dummy1 up

ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1022
	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1022" false
	check_err $? "Lowest metric route not in hardware when should"

fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" true
	check_err $? "Highest metric route still in hardware when should not"

ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1023
	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1023" true
	check_err $? "Middle metric route in hardware when should not"

log_test "IPv6 routes with metric"

ip -n $ns link del dev dummy1
}

fib_ipv6_append_single_test()
{
	local ns=$1; shift

# When an IPv6 multipath route is added without the 'nexthop' keyword,
	# different code paths are taken compared to when the keyword is used.
	# This test tries to verify the former.
	RET=0

for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
	done

ip -n $ns route add 2001:db8:10::/64 via 2001:db8:1::2 metric 1024
	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route append 2001:db8:10::/64 via 2001:db8:2::2 metric 1024
	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Route not in hardware after appending"

ip -n $ns route add 2001:db8:10::/64 via 2001:db8:1::2 metric 1025
	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
	check_err $? "Route in hardware when should not"

ip -n $ns route append 2001:db8:10::/64 via 2001:db8:2::2 metric 1025
	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
	check_err $? "Route in hardware when should not after appending"

fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Lowest metric route not in hardware when should"

log_test "IPv6 append single route without 'nexthop' keyword"

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_replace_single_test()
{
	local ns=$1; shift
	local i

RET=0

for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
	done

ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route replace 2001:db8:1::/64 dev dummy2 metric 1024
	fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" false
	check_err $? "Replacement route not in hardware when should"

# Add a route with an higher metric and make sure that replacing it
	# does not affect the lower metric one.
	ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1025
	ip -n $ns route replace 2001:db8:1::/64 dev dummy2 metric 1025

fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" false
	check_err $? "Lowest metric route not in hardware when should"
	fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1025" true
	check_err $? "Highest metric route in hardware when should not"

log_test "IPv6 single route replace"

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_metric_multipath_test()
{
	local ns=$1; shift

RET=0

for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
	done

ip -n $ns route add 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route add 2001:db8:10::/64 metric 1022 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	fib6_trap_check $ns "2001:db8:10::/64 metric 1022" false
	check_err $? "Lowest metric route not in hardware when should"

ip -n $ns route add 2001:db8:10::/64 metric 1023 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" true
	check_err $? "Highest metric route still in hardware when should not"

fib6_trap_check $ns "2001:db8:10::/64 metric 1023" true
	check_err $? "Middle metric route in hardware when should not"

log_test "IPv6 multipath routes with metric"

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_append_multipath_test()
{
	local ns=$1; shift

RET=0

for i in $(seq 1 3); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
	done

ip -n $ns route add 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:1::2 dev dummy1
	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route append 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:2::2 dev dummy2 \
		nexthop via 2001:db8:3::2 dev dummy3
	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Route not in hardware after appending"

ip -n $ns route add 2001:db8:10::/64 metric 1025 \
		nexthop via 2001:db8:1::2 dev dummy1
	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
	check_err $? "Route in hardware when should not"

ip -n $ns route append 2001:db8:10::/64 metric 1025 \
		nexthop via 2001:db8:2::2 dev dummy2 \
		nexthop via 2001:db8:3::2 dev dummy3
	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
	check_err $? "Route in hardware when should not after appending"

fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Lowest metric route not in hardware when should"

log_test "IPv6 append multipath route with 'nexthop' keyword"

for i in $(seq 1 3); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_replace_multipath_test()
{
	local ns=$1; shift
	local i

RET=0

for i in $(seq 1 3); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
	done

ip -n $ns route replace 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:3::2 dev dummy3
	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Replacement route not in hardware when should"

# Add a route with an higher metric and make sure that replacing it
	# does not affect the lower metric one.
	ip -n $ns route add 2001:db8:10::/64 metric 1025 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	ip -n $ns route replace 2001:db8:10::/64 metric 1025 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:3::2 dev dummy3

fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Lowest metric route not in hardware when should"
	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
	check_err $? "Highest metric route in hardware when should not"

log_test "IPv6 multipath route replace"

for i in $(seq 1 3); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_append_multipath_to_single_test()
{
	local ns=$1; shift

# Test that when the first route in the leaf is not a multipath route
	# and we try to append a multipath route with the same metric to it, it
	# is not notified.
	RET=0

for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
	done

ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
	fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware when should"

ip -n $ns route append 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:2::2 dev dummy2
	fib6_trap_check $ns "2001:db8:10::/64 dev dummy2 metric 1024" true
	check_err $? "Route in hardware when should not"

fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware after append"

log_test "IPv6 append multipath route to non-multipath route"

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_delete_single_test()
{
	local ns=$1; shift

# Test various deletion scenarios, where only a single route is
	# deleted from the FIB node.
	for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
	done

# Test deletion of a single route when it is the only route in the FIB
	# node.
	RET=0

ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024

log_test "IPv6 delete sole single route"

# Test that deletion of last route does not affect the first one.
	RET=0

ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025

fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
	check_err $? "Route not in hardware after deleting higher metric route"

log_test "IPv6 delete single route not in hardware"

ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024

# Test that first route is replaced by next single route in the FIB
	# node.
	RET=0

ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024

fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1025" false
	check_err $? "Route not in hardware after deleting lowest metric route"

log_test "IPv6 delete single route - replaced by single"

ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025

# Test that first route is replaced by next multipath route in the FIB
	# node.
	RET=0

ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
	ip -n $ns route add 2001:db8:10::/64 metric 1025 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024

fib6_trap_check $ns "2001:db8:10::/64 metric 1025" false
	check_err $? "Route not in hardware after deleting lowest metric route"

log_test "IPv6 delete single route - replaced by multipath"

ip -n $ns route del 2001:db8:10::/64 metric 1025

# Test deletion of a single nexthop from a multipath route.
	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	ip -n $ns route del 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:1::2 dev dummy1

fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Route not in hardware after deleting a single nexthop"

log_test "IPv6 delete single nexthop"

ip -n $ns route del 2001:db8:10::/64 metric 1024

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_delete_multipath_test()
{
	local ns=$1; shift

# Test various deletion scenarios, where an entire multipath route is
	# deleted from the FIB node.
	for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
	done

# Test deletion of a multipath route when it is the only route in the
	# FIB node.
	RET=0

ip -n $ns route add 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	ip -n $ns route del 2001:db8:10::/64 metric 1024

log_test "IPv6 delete sole multipath route"

# Test that deletion of last route does not affect the first one.
	RET=0

ip -n $ns route add 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	ip -n $ns route add 2001:db8:10::/64 metric 1025 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	ip -n $ns route del 2001:db8:10::/64 metric 1025

fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "Route not in hardware after deleting higher metric route"

log_test "IPv6 delete multipath route not in hardware"

ip -n $ns route del 2001:db8:10::/64 metric 1024

# Test that first route is replaced by next single route in the FIB
	# node.
	RET=0

ip -n $ns route add 2001:db8:10::/64 metric 1024 \
		nexthop via 2001:db8:1::2 dev dummy1 \
		nexthop via 2001:db8:2::2 dev dummy2
	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
	ip -n $ns route del 2001:db8:10::/64 metric 1024

fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1025" false
	check_err $? "Route not in hardware after deleting lowest metric route"

log_test "IPv6 delete multipath route - replaced by single"

ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025

# Test that first route is replaced by next multipath route in the FIB
	# node.
	RET=0

fib6_trap_check $ns "2001:db8:10::/64 metric 1025" false
	check_err $? "Route not in hardware after deleting lowest metric route"

log_test "IPv6 delete multipath route - replaced by multipath"

ip -n $ns route del 2001:db8:10::/64 metric 1025

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_replay_single_test()
{
	local ns=$1; shift
	local devlink_dev=$1; shift

RET=0

for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
	done

ip -n $ns route add 2001:db8:1::/64 dev dummy1
	ip -n $ns route append 2001:db8:1::/64 dev dummy2

devlink -N $ns dev reload $devlink_dev

fib6_trap_check $ns "2001:db8:1::/64 dev dummy1" false
	check_err $? "First route not in hardware when should"

fib6_trap_check $ns "2001:db8:1::/64 dev dummy2" true
	check_err $? "Second route in hardware when should not"

log_test "IPv6 routes replay - single route"

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

fib_ipv6_replay_multipath_test()
{
	local ns=$1; shift
	local devlink_dev=$1; shift

RET=0

for i in $(seq 1 2); do
		ip -n $ns link add name dummy$i type dummy
		ip -n $ns link set dev dummy$i up
		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
	done

devlink -N $ns dev reload $devlink_dev

fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
	check_err $? "First route not in hardware when should"

fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
	check_err $? "Second route in hardware when should not"

log_test "IPv6 routes replay - multipath route"

for i in $(seq 1 2); do
		ip -n $ns link del dev dummy$i
	done
}

cmd: