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Commit 7b7bc875 authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

selftests: forwarding: Add a test for basic IPv4 and IPv6 routing 



Configure two hosts which are directly connected to the same router and
test IPv4 and IPv6 ping. Use a large MTU and check that ping is
unaffected.

Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 236dd50b

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

+15 −0
Original line number Diff line number Diff line
@@ -267,6 +267,21 @@ bridge_ageing_time_get() 
	echo $((ageing_time / 100))

}



forwarding_enable()

{

       ipv4_fwd=$(sysctl -n net.ipv4.conf.all.forwarding)

       ipv6_fwd=$(sysctl -n net.ipv6.conf.all.forwarding)



       sysctl -q -w net.ipv4.conf.all.forwarding=1

       sysctl -q -w net.ipv6.conf.all.forwarding=1

}



forwarding_restore()

{

       sysctl -q -w net.ipv6.conf.all.forwarding=$ipv6_fwd

       sysctl -q -w net.ipv4.conf.all.forwarding=$ipv4_fwd

}



##############################################################################

# Tests

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

0 → 100755
+125 −0
Original line number Diff line number Diff line 
#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



NUM_NETIFS=4

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"

}



router_create()

{

	ip link set dev $rp1 up

	ip link set dev $rp2 up



	ip address add 192.0.2.1/24 dev $rp1

	ip address add 2001:db8:1::1/64 dev $rp1



	ip address add 198.51.100.1/24 dev $rp2

	ip address add 2001:db8:2::1/64 dev $rp2

}



router_destroy()

{

	ip address del 2001:db8:2::1/64 dev $rp2

	ip address del 198.51.100.1/24 dev $rp2



	ip address del 2001:db8:1::1/64 dev $rp1

	ip address del 192.0.2.1/24 dev $rp1



	ip link set dev $rp2 down

	ip link set dev $rp1 down

}



setup_prepare()

{

	h1=${NETIFS[p1]}

	rp1=${NETIFS[p2]}



	rp2=${NETIFS[p3]}

	h2=${NETIFS[p4]}



	vrf_prepare



	h1_create

	h2_create



	router_create



	forwarding_enable

}



cleanup()

{

	pre_cleanup



	forwarding_restore



	router_destroy



	h2_destroy

	h1_destroy



	vrf_cleanup

}



trap cleanup EXIT



setup_prepare

setup_wait



ping_test $h1 198.51.100.2

ping6_test $h1 2001:db8:2::2



exit $EXIT_STATUS