Commit 1beaff77 authored by Ido Schimmel's avatar Ido Schimmel Committed by Jakub Kicinski
Browse files

selftests: forwarding: Add blackhole nexthops tests 



Test that IPv4 and IPv6 ping fail when the route is using a blackhole
nexthop or a group with a blackhole nexthop. Test that ping passes when
the route starts using a valid nexthop.

Signed-off-by: default avatarIdo Schimmel <idosch@nvidia.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 24eb2a02

tools/testing/selftests/net/forwarding/router_mpath_nh.sh

+57 −1
Original line number Diff line number Diff line 
#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



ALL_TESTS="ping_ipv4 ping_ipv6 multipath_test"

ALL_TESTS="

	ping_ipv4

	ping_ipv6

	multipath_test

	ping_ipv4_blackhole

	ping_ipv6_blackhole

"

NUM_NETIFS=8

source lib.sh
@@ -302,6 +308,56 @@ multipath_test() 
	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]}