Commit 607bd2e5 authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

selftests: fib_tests: Add test cases for IPv4/IPv6 FIB 



Add test cases to check that IPv4 and IPv6 react to a netdev being
unregistered as expected.

Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Acked-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1de178ed

tools/testing/selftests/net/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ CFLAGS = -Wall -Wl,--no-as-needed -O2 -g 
CFLAGS += -I../../../../usr/include/



TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh rtnetlink.sh

TEST_PROGS += fib_tests.sh

TEST_GEN_FILES =  socket

TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy

TEST_GEN_PROGS = reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa

tools/testing/selftests/net/fib_tests.sh

0 → 100755
+146 −0
Original line number Diff line number Diff line 
#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



# This test is for checking IPv4 and IPv6 FIB behavior in response to

# different events.



ret=0



check_err()

{

	if [ $ret -eq 0 ]; then

		ret=$1

	fi

}



check_fail()

{

	if [ $1 -eq 0 ]; then

		ret=1

	fi

}



netns_create()

{

	local testns=$1



	ip netns add $testns

	ip netns exec $testns ip link set dev lo up

}



fib_unreg_unicast_test()

{

	ret=0



	netns_create "testns"



	ip netns exec testns ip link add dummy0 type dummy

	ip netns exec testns ip link set dev dummy0 up



	ip netns exec testns ip address add 198.51.100.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0



	ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	check_err $?



	ip netns exec testns ip link del dev dummy0

	check_err $?



	ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	check_fail $?



	ip netns del testns



	if [ $ret -ne 0 ]; then

		echo "FAIL: unicast route test"

		return 1

	fi

	echo "PASS: unicast route test"

}



fib_unreg_multipath_test()

{

	ret=0



	netns_create "testns"



	ip netns exec testns ip link add dummy0 type dummy

	ip netns exec testns ip link set dev dummy0 up



	ip netns exec testns ip link add dummy1 type dummy

	ip netns exec testns ip link set dev dummy1 up



	ip netns exec testns ip address add 198.51.100.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0



	ip netns exec testns ip address add 192.0.2.1/24 dev dummy1

	ip netns exec testns ip -6 address add 2001:db8:2::1/64 dev dummy1



	ip netns exec testns ip route add 203.0.113.0/24 \

		nexthop via 198.51.100.2 dev dummy0 \

		nexthop via 192.0.2.2 dev dummy1

	ip netns exec testns ip -6 route add 2001:db8:3::/64 \

		nexthop via 2001:db8:1::2 dev dummy0 \

		nexthop via 2001:db8:2::2 dev dummy1



	ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	check_err $?



	ip netns exec testns ip link del dev dummy0

	check_err $?



	ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	# In IPv6 we do not flush the entire multipath route.

	check_err $?



	ip netns exec testns ip link del dev dummy1



	ip netns del testns



	if [ $ret -ne 0 ]; then

		echo "FAIL: multipath route test"

		return 1

	fi

	echo "PASS: multipath route test"

}



fib_unreg_test()

{

	echo "Running netdev unregister tests"



	fib_unreg_unicast_test

	fib_unreg_multipath_test

}



fib_test()

{

	fib_unreg_test

}



if [ "$(id -u)" -ne 0 ];then

	echo "SKIP: Need root privileges"

	exit 0

fi



if [ ! -x "$(command -v ip)" ]; then

	echo "SKIP: Could not run test without ip tool"

	exit 0

fi



ip route help 2>&1 | grep -q fibmatch

if [ $? -ne 0 ]; then

	echo "SKIP: iproute2 too old, missing fibmatch"

	exit 0

fi



fib_test



exit $ret