Commit 42420291 authored by Adrian Moreno's avatar Adrian Moreno Committed by David S. Miller
Browse files

selftests: openvswitch: add explicit drop testcase 



Test explicit drops generate the right drop reason. Also, verify that
the kernel rejects flows with actions following an explicit drop.

Acked-by: default avatarAaron Conole <aconole@redhat.com>
Signed-off-by: default avatarAdrian Moreno <amorenoz@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent aab1272f

tools/testing/selftests/net/openvswitch/openvswitch.sh

+35 −0
Original line number Diff line number Diff line
@@ -217,6 +217,31 @@ test_drop_reason() { 
		return 1

	fi



	# Drop UDP 6000 traffic with an explicit action and an error code.

	ovs_add_flow "test_drop_reason" dropreason \

		"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=6000)" \

                'drop(42)'

	# Drop UDP 7000 traffic with an explicit action with no error code.

	ovs_add_flow "test_drop_reason" dropreason \

		"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=7000)" \

                'drop(0)'



	ovs_drop_record_and_run \

            "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 6000

	ovs_drop_reason_count 0x30004 # OVS_DROP_EXPLICIT_ACTION_ERROR

	if [[ "$?" -ne "1" ]]; then

		info "Did not detect expected explicit error drops: $?"

		return 1

	fi



	ovs_drop_record_and_run \

            "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 7000

	ovs_drop_reason_count 0x30003 # OVS_DROP_EXPLICIT_ACTION

	if [[ "$?" -ne "1" ]]; then

		info "Did not detect expected explicit drops: $?"

		return 1

	fi



	return 0

}
@@ -458,6 +483,16 @@ test_netlink_checks () { 
	    wc -l) == 2 ] || \

	      return 1



	ERR_MSG="Flow actions may not be safe on all matching packets"

	PRE_TEST=$(dmesg | grep -c "${ERR_MSG}")

	ovs_add_flow "test_netlink_checks" nv0 \

		'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \

		&> /dev/null && return 1

	POST_TEST=$(dmesg | grep -c "${ERR_MSG}")

	if [ "$PRE_TEST" == "$POST_TEST" ]; then

		info "failed - error not generated"

		return 1

	fi

	return 0

}