selftests: forwarding: router: Add test case for destination IP link-local (ef11ffa2) · Commits · 戴 / test

Add test case to check that packets are not dropped when they need to be routed and their destination is link-local, i.e., 169.254.0.0/16. Signed-off-by:

Amit Cohen <amitc@mellanox.com> Acked-by:

Jiri Pirko <jiri@mellanox.com> Signed-off-by:

Ido Schimmel <idosch@mellanox.com> Signed-off-by:

David S. Miller <davem@davemloft.net>

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

+25 −0

Original line number	Diff line number	Diff line
		@@ -8,6 +8,7 @@ ALL_TESTS="
		mc_mac_mismatch
		ipv4_sip_equal_dip
		ipv6_sip_equal_dip
		ipv4_dip_link_local
		"

		NUM_NETIFS=4
		@@ -287,6 +288,30 @@ ipv6_sip_equal_dip()
		tc filter del dev $rp2 egress protocol ipv6 pref 1 handle 101 flower
		}

		ipv4_dip_link_local()
		{
		local dip=169.254.1.1

		RET=0

		tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
		flower dst_ip $dip action pass

		ip neigh add 169.254.1.1 lladdr 00:11:22:33:44:55 dev $rp2
		ip route add 169.254.1.0/24 dev $rp2

		$MZ $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec -b $rp1mac -B $dip -q

		tc_check_packets "dev $rp2 egress" 101 5
		check_err $? "Packets were dropped"

		log_test "IPv4 destination IP is link-local"

		ip route del 169.254.1.0/24 dev $rp2
		ip neigh del 169.254.1.1 lladdr 00:11:22:33:44:55 dev $rp2
		tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
		}

		trap cleanup EXIT

		setup_prepare

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