def emit_message_out(self, connection, message):
"""Emit a KytosEvent for each outgoing message."""
if connection.is_alive():
emit_message_out(self.controller, connection, message)
def send_port_request(controller, connection):
"""Send a Port Description Request after the Features Reply."""
port_request = MultipartRequest()
port_request.multipart_type = MultipartType.OFPMP_PORT_DESC
emit_message_out(controller, connection, port_request)
def say_hello(controller, connection):
"""Send back a Hello packet with the same version as the switch."""
hello = Hello()
emit_message_out(controller, connection, hello)
def send_set_config(controller, switch):
"""Send a SetConfig message after the OpenFlow handshake."""
set_config = SetConfig()
set_config.flags = ConfigFlag.OFPC_FRAG_NORMAL
set_config.miss_send_len = ControllerMaxLen.OFPCML_NO_BUFFER
emit_message_out(controller, switch.connection, set_config)
def emit_message_out(self, connection, message):
"""Emit a KytosEvent for an outgoing message containing the message
and the destination."""
if connection.is_alive():
emit_message_out(self.controller, connection, message)
def send_set_config(controller, switch):
"""Send a SetConfig message after the OpenFlow handshake."""
set_config = SetConfig()
set_config.flags = ConfigFlag.OFPC_FRAG_NORMAL
set_config.miss_send_len = 0xffff # Send the whole packet
emit_message_out(controller, switch.connection, set_config)
