FreeDATA/modem/frame_handler_ping.py
2024-01-05 10:49:25 +01:00

41 lines
No EOL
1.2 KiB
Python

import frame_handler
import helpers
import data_frame_factory
class PingFrameHandler(frame_handler.FrameHandler):
def is_frame_for_me(self):
call_with_ssid = self.config['STATION']['mycall'] + "-" + str(self.config['STATION']['myssid'])
valid, mycallsign = helpers.check_callsign(
call_with_ssid,
self.details["frame"]["destination_crc"],
self.config['STATION']['ssid_list'])
if not valid:
ft = self.details['frame']['frame_type']
self.logger.info(f"[Modem] {ft} received but not for us.")
return valid
def should_respond(self):
return self.is_frame_for_me()
def follow_protocol(self):
if not self.should_respond():
return
self.logger.debug(
f"[Modem] Responding to request from [{self.details['frame']['origin']}]",
snr=self.details['snr'],
)
self.send_ack()
def send_ack(self):
factory = data_frame_factory.DataFrameFactory(self.config)
ping_ack_frame = factory.build_ping_ack(
self.details['frame']['origin_crc'],
self.details['snr']
)
self.transmit(ping_ack_frame)