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selftests: forwarding: router: Add test case for destination IP link-local

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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>
This commit is contained in:
Amit Cohen 2020-01-05 18:20:57 +02:00 committed by David S. Miller
parent ca360db4b8
commit ef11ffa21b
1 changed files with 25 additions and 0 deletions
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25
tools/testing/selftests/net/forwarding/router.sh
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@ -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