Commit 84e8feea authored by Ido Schimmel's avatar Ido Schimmel Committed by Jakub Kicinski

selftests: mlxsw: Add blackhole_nexthop trap test

Test that packets hitting a blackhole nexthop are trapped to the CPU
when the trap is enabled. Test that packets are not reported when the
trap is disabled.
Signed-off-by: default avatarIdo Schimmel <idosch@nvidia.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 37b50e55
......@@ -52,6 +52,7 @@ ALL_TESTS="
blackhole_route_test
irif_disabled_test
erif_disabled_test
blackhole_nexthop_test
"
NUM_NETIFS=4
......@@ -647,6 +648,41 @@ erif_disabled_test()
devlink_trap_action_set $trap_name "drop"
}
__blackhole_nexthop_test()
{
local flags=$1; shift
local subnet=$1; shift
local proto=$1; shift
local dip=$1; shift
local trap_name="blackhole_nexthop"
local mz_pid
RET=0
ip -$flags nexthop add id 1 blackhole
ip -$flags route add $subnet nhid 1
tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
flower skip_hw dst_ip $dip ip_proto udp action drop
# Generate packets to the blackhole nexthop
$MZ $h1 -$flags -t udp "sp=54321,dp=12345" -c 0 -p 100 -b $rp1mac \
-B $dip -d 1msec -q &
mz_pid=$!
devlink_trap_drop_test $trap_name $rp2 101
log_test "Blackhole nexthop: IPv$flags"
devlink_trap_drop_cleanup $mz_pid $rp2 $proto 1 101
ip -$flags route del $subnet
ip -$flags nexthop del id 1
}
blackhole_nexthop_test()
{
__blackhole_nexthop_test "4" "198.51.100.0/30" "ip" $h2_ipv4
__blackhole_nexthop_test "6" "2001:db8:2::/120" "ipv6" $h2_ipv6
}
trap cleanup EXIT
setup_prepare
......
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