Example #1
0
def verify_no_packet_in(test, data, in_port, controller=None):
    """
    Assert that the controller does not receive a packet_in message matching
    data 'data' from port 'in_port'.

    @param test Instance of base_tests.SimpleProtocol
    @param pkt String to expect as the packet_in data
    @param in_port OpenFlow port number to expect as the packet_in in_port
    @param controller Controller instance, defaults to test.controller
    """

    if controller == None:
        controller = test.controller

    # Negative test, need to wait a short amount of time before checking we
    # didn't receive the message.
    time.sleep(0.5)

    # Check every packet_in queued in the controller
    while True:
        msg, _ = controller.poll(ofp.OFPT_PACKET_IN, timeout=0)
        if msg == None:
            # No more queued packet_in messages
            break
        elif packet_in_match(msg, data, in_port, None):
            # Found a matching message
            break

    test.assertTrue(msg == None, "Did not expect a packet-in message on port %d" % in_port)
Example #2
0
def verify_packet_in(test, data, in_port, reason, controller=None):
    """
    Assert that the controller receives a packet_in message matching data 'data'
    from port 'in_port' with reason 'reason'. Does not trigger the packet_in
    itself, that's up to the test case.

    @param test Instance of base_tests.SimpleProtocol
    @param pkt String to expect as the packet_in data
    @param in_port OpenFlow port number to expect as the packet_in in_port
    @param reason One of OFPR_* to expect as the packet_in reason
    @param controller Controller instance, defaults to test.controller
    @returns The received packet-in message
    """

    if controller == None:
        controller = test.controller

    end_time = time.time() + oftest.ofutils.default_timeout

    while True:
        msg, _ = controller.poll(ofp.OFPT_PACKET_IN, end_time - time.time())
        if not msg:
            # Timeout
            break
        elif packet_in_match(msg, data, in_port, reason):
            # Found a matching message
            break

    test.assertTrue(msg is not None, 'Packet in message not received on port %d' % in_port)
    return msg