async def _broadcast_nodes(self):
nodes = self.router.get_nodes()
nodes.save("nodes.json")
for dl in self.data_links.values():
for nodes_packet in nodes.to_packets(
AX25Call.parse(self.config.node_call())):
dl.write_packet(nodes_packet)
def load(cls, file: str):
if not os.path.exists(file):
return None, 0
with open(file) as fp:
nodes_json = json.load(fp)
sending_alias = nodes_json["nodeAlias"]
destinations = []
for dest_json in nodes_json["destinations"]:
destinations.append(
NodeDestination(AX25Call.parse(dest_json["nodeCall"]),
dest_json["nodeAlias"],
AX25Call.parse(dest_json["bestNeighbor"]),
int(dest_json["quality"])))
return cls(sending_alias,
destinations), datetime.datetime.fromisoformat(
nodes_json["createdAt"])
def write(self, address, data):
payload = AppPayload(0, 1, bytearray())
ax25_address = AX25Call.parse(address)
ax25_address.write(payload.buffer)
payload.buffer.extend(data)
msg = msgpack.packb(dataclasses.asdict(payload))
self.transport.write(msg)
def from_safe_dict(cls, d):
instance = cls(node_call=AX25Call.parse(d["call"]),
node_alias=d["alias"],
freeze=d["freeze"])
instance.neighbor_map = {
route_dict["neighbor"]: Route.from_safe_dict(route_dict)
for route_dict in d["routes"]
}
return instance
def __init__(self, my_call: str, my_alias: str, remote_call, nl: NetRom):
self.local_call = AX25Call.parse(my_call)
self.local_alias = AX25Call(callsign=my_alias)
self.remote_call = AX25Call.parse(remote_call)
self.nl = nl
self.stdin_queue = Queue()
self.connected = False
self.circuit_id = None
EventBus.bind(
EventListener(f"netrom.{my_call}.connect",
f"netrom_{my_call}_connect", self.handle_connect))
EventBus.bind(
EventListener(f"netrom.{my_call}.disconnect",
f"netrom_{my_call}_disconnect",
self.handle_disconnect))
EventBus.bind(
EventListener(f"netrom.{my_call}.inbound",
f"netrom_{my_call}_inbound", self.handle_data))
def __init__(self, local_call: str, remote_call: str,
datalink: DataLinkManager):
self.local_call = AX25Call.parse(local_call)
self.remote_call = AX25Call.parse(remote_call)
self.dl = datalink
self.stdin_queue = Queue()
self.connected = False
self.circuit_id = None
EventBus.bind(
EventListener(f"link.{local_call}.connect",
f"link_{local_call}_connect", self.handle_connect))
EventBus.bind(
EventListener(f"link.{local_call}.disconnect",
f"link_{local_call}_disconnect",
self.handle_disconnect))
EventBus.bind(
EventListener(f"link.{local_call}.inbound",
f"link_{local_call}_inbound", self.handle_data))
def load(cls, filename: str, node_alias: str):
if not os.path.exists(filename):
return NetRomRoutingTable(node_alias=node_alias, updated_at=datetime.datetime.now())
d = json_load(filename)
return NetRomRoutingTable(node_alias=d["node_alias"],
updated_at=datetime.datetime.fromisoformat(d["updated_at"]),
our_calls={AX25Call.parse(call) for call in d["our_calls"]},
neighbors={n_dict["call"]: Neighbor.from_safe_dict(n_dict) for n_dict in d["neighbors"]},
destinations={d_dict["call"]: Destination.from_safe_dict(d_dict) for d_dict in d["destinations"]})
async def wait_for_network():
tty = TTY()
loop.add_reader(sys.stdin, tty.handle_stdin)
loop.add_signal_handler(signal.SIGTERM, tty.handle_signal, loop, scheduler)
loop.add_signal_handler(signal.SIGINT, tty.handle_signal, loop, scheduler)
remote_call = AX25Call.parse(args.remote_call)
while True:
(found, mtu) = netrom_l3.route_packet(NetRomAddress.from_call(remote_call))
if found:
break
await asyncio.sleep(0.200)
main_logger.info(f"Learned route to {remote_call}")
await asyncio.sleep(1.200)
netrom_l4.open(protocol_factory=lambda: tty,
local_call=AX25Call.parse(args.local_call),
remote_call=AX25Call.parse(args.remote_call),
origin_user=AX25Call(args.local_alias),
origin_node=AX25Call(args.local_call))
async def _handle_packet_async(self, netrom_packet: NetRomPacket):
"""If packet is for us, handle it, otherwise forward it using our L3 routing table"""
EventBus.emit("netrom.incoming", [netrom_packet])
self.debug(f"RX: {netrom_packet}")
packet_logger.info(f"RX: {netrom_packet}")
if netrom_packet.dest == AX25Call("KEEPLI-0"):
# What are these?? Just ignore them
pass
elif netrom_packet.dest == AX25Call.parse(self.config.node_call()):
# Destination is this node
self.sm.handle_packet(netrom_packet)
elif netrom_packet.dest in self.l3_apps:
# Destination is an app served by this node
self.sm.handle_packet(netrom_packet)
elif netrom_packet.dest in self.l3_servers:
# Destination is an app served by this node
self.sm.handle_packet(netrom_packet)
else:
# Destination is somewhere else
self.write_packet(netrom_packet, forward=True)
def local_call(self) -> AX25Call:
return AX25Call.parse(self.config.node_call())
def run_node(args):
# Bootstrap node.ini
if not os.path.exists(args.config) and os.path.basename(
args.config) == "node.ini":
shutil.copyfile("config/node.ini.sample", args.config)
# Load settings from ini file
s = Settings(".", ["config/defaults.ini", args.config])
node_settings = s.node_config()
node_call = AX25Call.parse(node_settings.node_call())
if node_call.callsign == "N0CALL":
print("Callsign is missing from config. Please see instructions here "
"https://github.com/tarpn/tarpn-node-controller")
sys.exit(1)
else:
print(f"Loaded configuration for {node_call}")
# Setup logging
logging_config_file = node_settings.get("log.config", "not_set")
if logging_config_file != "not_set":
log_dir = node_settings.get("log.dir")
if not os.path.exists(log_dir):
os.makedirs(log_dir)
logging.config.fileConfig(logging_config_file,
defaults={"log.dir": log_dir},
disable_existing_loggers=False)
if args.verbose:
logging.getLogger("root").setLevel(logging.DEBUG)
# Create thread pool
scheduler = Scheduler()
# Initialize I/O devices and L2 protocols
l3_protocols = L3Protocols()
l3_protocols.register(NoLayer3Protocol())
l2_multi = DefaultLinkMultiplexer(L3PriorityQueue, scheduler)
# Port UDP mapping
# udp.forwarding.enabled = true
# udp.address = 192.168.0.160:10093
# udp.destinations = K4DBZ-2,NODES
# udp.mapping = KN4ORB-2:1,KA2DEW-2:2
port_queues = {}
if node_settings.get_boolean("udp.enabled", False):
udp_host, udp_port = node_settings.get("udp.address").split(":")
udp_port = int(udp_port)
udp_writer = UDPWriter(g8bpq_address=(udp_host, udp_port))
intercept_dests = {
AX25Call.parse(c)
for c in node_settings.get("udp.destinations", "").split(",")
}
interceptor = udp_writer.receive_frame
udp_mapping = {}
for mapping in node_settings.get("udp.mapping", "").split(","):
c, i = mapping.split(":")
udp_mapping[AX25Call.parse(c)] = int(i)
scheduler.submit(
UDPThread("0.0.0.0", udp_port, udp_mapping, port_queues,
udp_writer))
else:
intercept_dests = {}
interceptor = lambda frame: None
for port_config in s.port_configs():
if port_config.get_boolean("port.enabled") and port_config.get(
"port.type") == "serial":
l2_queueing = L2FIFOQueue(20, AX25Protocol.maximum_frame_size())
port_queues[port_config.port_id()] = l2_queueing
l2 = AX25Protocol(port_config, port_config.port_id(), node_call,
scheduler, l2_queueing, l2_multi, l3_protocols,
intercept_dests, interceptor)
kiss = KISSProtocol(
port_config.port_id(), l2_queueing,
port_config.get_boolean("kiss.checksum", False))
SerialDevice(kiss, port_config.get("serial.device"),
port_config.get_int("serial.speed"),
port_config.get_float("serial.timeout"), scheduler)
scheduler.submit(L2IOLoop(l2_queueing, l2))
# Register L3 protocols
routing_table = tarpn.netrom.router.NetRomRoutingTable.load(
f"nodes-{node_settings.node_call()}.json", node_settings.node_alias())
network_configs = s.network_configs()
if network_configs.get_boolean("netrom.enabled", False):
logger.info("Starting NET/ROM router")
netrom_l3 = NetRomL3(node_call, node_settings.node_alias(), scheduler,
l2_multi, routing_table)
l3_protocols.register(netrom_l3)
netrom_l4 = NetRomTransportProtocol(s.network_configs(), netrom_l3,
scheduler)
l4_handlers = L4Handlers()
if network_configs.get_boolean("mesh.enabled", False):
mesh_l3 = MeshProtocol(WallTime(), network_configs, l2_multi,
l4_handlers, scheduler)
l3_protocols.register(mesh_l3)
# Create the L4 protocols
mesh_l4 = MeshTransportManager(mesh_l3)
# Register L4 handlers
reliable = ReliableManager(mesh_l3, scheduler)
fragment_protocol = FragmentProtocol(mesh_l3, mesh_l4)
reliable_protocol = ReliableProtocol(mesh_l3, reliable, l4_handlers)
datagram_protocol = DatagramProtocol(mesh_l3, mesh_l4,
fragment_protocol,
reliable_protocol)
broadcast_protocol = BroadcastProtocol(mesh_l3, mesh_l4, reliable)
l4_handlers.register_l4(Protocol.FRAGMENT, fragment_protocol)
l4_handlers.register_l4(Protocol.RELIABLE, reliable_protocol)
l4_handlers.register_l4(Protocol.DATAGRAM, datagram_protocol)
l4_handlers.register_l4(Protocol.BROADCAST, broadcast_protocol)
# TODO fix circular dependency here
mesh_l4.broadcast_protocol = broadcast_protocol
mesh_l4.datagram_protocol = datagram_protocol
# Bind the command processor
ncp_factory = partial(NodeCommandProcessor,
config=network_configs,
link=l2_multi,
network=mesh_l3,
transport_manager=mesh_l4,
scheduler=scheduler)
mesh_l4.bind(ncp_factory, mesh_l3.our_address, 11)
# Set up applications
for app_config in s.app_configs():
# We have a single unix socket connection multiplexed to many network connections
print(app_config)
app_multiplexer = TransportMultiplexer()
app_address = MeshTransportAddress.parse(
app_config.get("app.address"))
app_protocol = ApplicationProtocol(app_config.app_name(),
app_config.app_alias(),
str(app_address.address),
mesh_l4, app_multiplexer)
scheduler.submit(
UnixServerThread(app_config.app_socket(), app_protocol))
multiplexer_protocol = partial(MultiplexingProtocol,
app_multiplexer)
# TODO bind or connect?
mesh_l4.connect(multiplexer_protocol, app_address.address,
MeshAddress.parse("00.a2"), app_address.port)
sock = node_settings.get("node.sock")
print(f"Binding node terminal to {sock}")
scheduler.submit(
UnixServerThread(sock, TarpnShellProtocol(mesh_l3, mesh_l4)))
# Start a metrics reporter
#reporter = ConsoleReporter(reporting_interval=300)
#scheduler.timer(10_000, reporter.start, True)
#scheduler.add_shutdown_hook(reporter.stop)
logger.info("Finished Startup")
try:
# Wait for all threads
scheduler.join()
except KeyboardInterrupt:
scheduler.shutdown()
def data_received(self, data: bytes) -> None:
s = data.decode("ASCII").strip().upper()
self.info(f"Data: {s}")
if self.pending_open is not None:
self.println(f"Pending connection to {self.pending_open}")
# If connected somewhere else, forward the input
if self.client_transport:
if s == "B" or s == "BYE":
self.client_transport.close()
self.println(
f"Closing connection to {self.client_transport.remote_call}...",
True)
else:
self.client_transport.write(data)
return
# If not forwarding, parse the command
try:
parsed_args = self.parser.parse_args(shlex.split(s.lower()))
except BaseException:
self.println(self.parser.format_help(), True)
return
if parsed_args.command is None:
parsed_args.command = "help"
if parsed_args.command == "help":
self.println(self.parser.format_help(), True)
elif parsed_args.command == "ports":
resp = "Ports:\n"
for dlm in self.datalinks:
resp += f"{dlm.link_port}: {dlm.link_call}\n"
self.println(resp, True)
elif parsed_args.command == "links":
resp = "Links:\n"
for dlm in self.datalinks:
for remote_call in dlm.state_machine.get_sessions().keys():
if dlm.state_machine.get_state(
str(remote_call)) == AX25StateType.Connected:
resp += f"L2 {dlm.link_call} > {str(remote_call)} on port {dlm.link_port}\n"
for circuit_id in self.network.get_circuit_ids():
circuit = self.network.get_circuit(circuit_id)
if circuit.state == NetRomStateType.Connected:
resp += f"L3 {circuit.local_call} > {circuit.local_call} on circuit {circuit_id}\n"
self.println(resp, True)
elif parsed_args.command == "whoami":
if isinstance(self.transport, NetworkTransport):
nt = cast(NetworkTransport, self.transport)
self.println(
f"Current user is {nt.origin_user.callsign} connected from {nt.origin_node}",
True)
else:
self.println(
f"Current user is default connected from {self.transport.get_extra_info('peername')}",
True)
elif parsed_args.command == "hostname":
self.println(f"Current host is {self.network.local_call()}", True)
elif parsed_args.command == "bye":
self.println("Goodbye.")
self.transport.close()
elif parsed_args.command == "connect":
"""
Connect to a remote station
Create a half-opened client connection to the remote station. Once the connect ack is received,
the connection will be completed and we will create the protocol and transport objects.
"""
remote_call = AX25Call.parse(parsed_args.dest)
local_call = AX25Call.parse(
self.settings.network_configs().node_call())
self.println(f"Connecting to {remote_call}...", True)
if isinstance(self.transport, NetworkTransport):
nt = cast(NetworkTransport, self.transport)
self.network.open(partial(ConnectProtocol, self), local_call,
remote_call, nt.origin_node, nt.origin_user)
self.pending_open = remote_call
else:
logging.warning(
f"Connect command is only supported for NetworkTransport, not {self.transport.__class__}"
)
self.println(
f"Connect command is only supported for NetworkTransport",
True)
else:
logging.warning(f"Unhandled command {parsed_args.command}")
self.println(f"Unhandled command {parsed_args.command}", True)
def data_received(self, data: bytes) -> None:
s = data.decode("ASCII").strip().upper()
self.info(f"Data: {s}")
# If we're waiting for a connection, either wait or let user BYE
if self.pending_open is not None:
if s == "B" or s == "BYE":
self.println(f"Cancelling connection to {self.pending_open}",
True)
self.pending_open = None
else:
self.println(f"Pending connection to {self.pending_open}",
True)
return
# If connected somewhere else, forward the input
if self.client_transport is not None:
if s == "B" or s == "BYE":
self.client_transport.close()
self.println(
f"Closing connection to {self.client_transport.get_extra_info('peername')}...",
True)
self.client_transport = None
else:
self.client_transport.write(data)
return
# If not forwarding, parse the command
try:
parsed_args = self.parser.parse_args(shlex.split(s.lower()))
except BaseException:
self.println(self.parser.format_help(), True)
return
if parsed_args.command is None:
parsed_args.command = "help"
if parsed_args.command == "help":
self.println(self.parser.format_help(), True)
elif parsed_args.command == "ports":
resp = "Ports:\n"
for device_id, l2 in self.l2s.l2_devices.items():
resp += f" - Port {device_id}: {l2.get_link_address()}\n"
self.println(resp, True)
elif parsed_args.command == "links":
resp = "Links:\n"
for link_id, l2 in self.l2s.logical_links.items():
if l2.peer_connected(link_id):
resp += f" - L2 Link {link_id}, Port {l2.get_device_id()}: "
resp += f"{l2.get_link_address()}>{l2.get_peer_address(link_id)}\n"
for circuit, (transport,
protocol) in self.l4.l3_connections.items():
nt = cast(NetRomTransport, transport)
if transport == self.transport:
resp += f" * L4 Link {circuit}: {nt.local_call}>{nt.remote_call}\n"
else:
resp += f" - L4 Link {circuit}: {nt.local_call}>{nt.remote_call}\n"
self.println(resp, True)
elif parsed_args.command == "nodes":
routing_table = cast(NetRomRoutingTable, self.l3.router)
resp = "Nodes:\n"
for i, dest in enumerate(routing_table.destinations.values()):
resp += f"{dest.node_alias}:{dest.node_call}\t"
if i % 4 == 3:
resp += "\n"
self.println(resp, True)
elif parsed_args.command == "routes":
routing_table = cast(NetRomRoutingTable, self.l3.router)
resp = "Routes:\n"
for dest in routing_table.destinations.values():
for route in dest.neighbor_map.values():
resp += f"{dest.node_alias}:{dest.node_call} via {route.next_hop}, qal={route.quality} obs={route.obsolescence}\n"
self.println(resp, True)
elif parsed_args.command == "whoami":
if isinstance(self.transport, NetRomTransport):
nt = cast(NetRomTransport, self.transport)
self.println(
f"Current user is {nt.origin_user.callsign} connected from {nt.origin_node}",
True)
else:
self.println(
f"Current user is default connected from {self.transport.get_extra_info('peername')}",
True)
elif parsed_args.command == "hostname":
self.println(f"Current host is {self.config.node_call()}", True)
elif parsed_args.command == "bye":
self.println("Goodbye.")
self.transport.close()
elif parsed_args.command == "connect":
"""
Connect to a remote station
Create a half-opened client connection to the remote station. Once the connect ack is received,
the connection will be completed and we will create the protocol and transport objects.
"""
remote_call = AX25Call.parse(parsed_args.dest)
local_call = AX25Call.parse(self.config.node_call())
self.println(f"Connecting to {remote_call}...", True)
if isinstance(self.transport, NetRomTransport):
nt = cast(NetRomTransport, self.transport)
self.l4.open(partial(ConnectProtocol, self), local_call,
remote_call, nt.origin_node, nt.origin_user)
self.pending_open = remote_call
else:
logging.warning(
f"Connect command is only supported for NetworkTransport, not {self.transport.__class__}"
)
self.println(
f"Connect command is only supported for NetworkTransport",
True)
else:
logging.warning(f"Unhandled command {parsed_args.command}")
self.println(f"Unhandled command {parsed_args.command}", True)
def main():
parser = argparse.ArgumentParser(
description='Decode packets from a serial port')
parser.add_argument("port", help="Serial port to open")
parser.add_argument("baud", type=int, help="Baudrate to use")
parser.add_argument("local_call", help="Your callsign (e.g., K4DBZ-10)")
parser.add_argument("local_alias", help="Your alias (e.g., ZDBZ10)")
parser.add_argument("remote_call", help="Remote callsign")
parser.add_argument("-datalink", help="Force L2 mode", action="store_true")
parser.add_argument("--check-crc", type=bool, default=False)
parser.add_argument("--monitor-port", type=int)
parser.add_argument("--debug", action="store_true")
args = parser.parse_args()
port_config = PortConfig.from_dict(
0, {
"port.enabled": True,
"port.type": "serial",
"serial.device": args.port,
"serial.speed": args.baud
})
loop = asyncio.get_event_loop()
in_queue: asyncio.Queue = asyncio.Queue()
out_queue: asyncio.Queue = asyncio.Queue()
loop.create_task(kiss_port_factory(in_queue, out_queue, port_config))
# Wire the port with an AX25 layer
dlm = DataLinkManager(AX25Call.parse(args.local_call),
port_config.port_id(), in_queue, out_queue,
loop.create_future)
dlm.add_l3_handler(IdHandler())
# Wire up the network
network_config = NetworkConfig.from_dict({
"netrom.node.call": args.local_call,
"netrom.node.alias": args.local_alias,
"netrom.ttl": 7,
"netrom.nodes.interval": 60,
"netrom.obs.init": 6,
"netrom.obs.min": 4,
"netrom.nodes.quality.min": 74
})
nl = NetworkManager(network_config, loop)
nl.attach_data_link(dlm)
tty = TTY(args.local_call, args.local_alias, args.remote_call, nl)
loop.create_task(tty.start())
loop.add_reader(sys.stdin, tty.handle_stdin)
#server = loop.run_until_complete(loop.create_server(lambda: Monitor(), '127.0.0.1', 8889))
#loop.create_task(server.serve_forever())
# Configure logging
main_logger = logging.getLogger("root")
main_logger.setLevel(logging.ERROR)
#packet_logger.addHandler(logging.StreamHandler(sys.stdout))
if args.debug:
main_logger.setLevel(logging.DEBUG)
state_logger = logging.getLogger("ax25.state")
state_logger.setLevel(logging.DEBUG)
state_logger.addHandler(logging.StreamHandler(sys.stdout))
state_logger = logging.getLogger("netrom.state")
state_logger.setLevel(logging.DEBUG)
state_logger.addHandler(logging.StreamHandler(sys.stdout))
loop.add_signal_handler(signal.SIGTERM, handle_signal, dlm, tty, loop)
loop.add_signal_handler(signal.SIGINT, handle_signal, dlm, tty, loop)
loop.create_task(dlm.start())
loop.create_task(nl.start())
try:
loop.run_forever()
finally:
loop.close()
def run_node(args):
# Load settings from ini file
s = Settings(".", args.config)
node_settings = s.node_config()
# Setup logging
logging.config.fileConfig("config/logging.ini", disable_existing_loggers=False)
# Create thread pool
scheduler = Scheduler()
# Initialize I/O devices and L2 protocols
l3_protocols = L3Protocols()
l2_multi = LinkMultiplexer(L3PriorityQueue, scheduler)
for port_config in s.port_configs():
l2_queueing = L2FIFOQueue(20, AX25Protocol.maximum_frame_size())
l2 = AX25Protocol(port_config.port_id(), AX25Call.parse(node_settings.node_call()), scheduler,
l2_queueing, l2_multi, l3_protocols)
kiss = KISSProtocol(port_config.port_id(), l2_queueing, port_config.get_boolean("kiss.checksum", False))
SerialDevice(kiss, port_config.get("serial.device"), port_config.get_int("serial.speed"), scheduler)
scheduler.submit(L2IOLoop(l2_queueing, l2))
# Register L3 protocols
routing_table = tarpn.netrom.router.NetRomRoutingTable.load(f"nodes-{s.network_configs().node_call()}.json",
s.network_configs().node_alias())
netrom_l3 = NetRomL3(AX25Call.parse(s.network_configs().node_call()), s.network_configs().node_alias(),
scheduler, l2_multi, routing_table)
l3_protocols.register(netrom_l3)
l3_protocols.register(NoLayer3Protocol())
# Create the L4 protocol
netrom_l4 = NetRomTransportProtocol(s.network_configs(), netrom_l3, scheduler)
# Bind the command processor
ncp_factory = partial(NodeCommandProcessor, config=s.network_configs(), l2s=l2_multi, l3=netrom_l3,
l4=netrom_l4, scheduler=scheduler)
netrom_l4.bind_server(AX25Call.parse(s.network_configs().node_call()), s.network_configs().node_alias(),
ncp_factory)
# Set up applications
for app_config in s.app_configs():
# We have a single unix socket connection multiplexed to many network connections
app_multiplexer = TransportMultiplexer()
app_protocol = ApplicationProtocol(app_config.app_name(), AX25Call.parse(app_config.app_call()),
app_config.app_alias(), netrom_l4, app_multiplexer)
scheduler.submit(UnixServerThread(app_config.app_socket(), app_protocol))
multiplexer_protocol = partial(MultiplexingProtocol, app_multiplexer)
netrom_l4.bind_server(AX25Call.parse(app_config.app_call()), app_config.app_alias(), multiplexer_protocol)
# Start a metrics reporter
reporter = ConsoleReporter(reporting_interval=300)
reporter.start()
scheduler.add_shutdown_hook(reporter.stop)
logger.info("Finished Startup")
try:
# Wait for all threads
scheduler.join()
except KeyboardInterrupt:
scheduler.shutdown()
def from_safe_dict(cls, d):
return cls(call=AX25Call.parse(d["call"]),
port=d["port"],
quality=d["quality"])
def main():
parser = argparse.ArgumentParser(description='Decode packets from a serial port')
parser.add_argument("port", help="Serial port to open")
parser.add_argument("baud", type=int, help="Baudrate to use")
parser.add_argument("local_call", help="Your callsign (e.g., K4DBZ-10)")
parser.add_argument("local_alias", help="Your alias (e.g., ZDBZ10)")
parser.add_argument("remote_call", help="Remote callsign")
parser.add_argument("-datalink", help="Force L2 mode", action="store_true")
parser.add_argument("--check-crc", type=bool, default=False)
parser.add_argument("--monitor-port", type=int)
parser.add_argument("--debug", action="store_true")
args = parser.parse_args()
# Configure logging
main_logger = logging.getLogger("root")
main_logger.setLevel(logging.ERROR)
if args.debug:
main_logger.setLevel(logging.DEBUG)
state_logger = logging.getLogger("ax25.state")
state_logger.setLevel(logging.DEBUG)
state_logger.addHandler(logging.StreamHandler(sys.stdout))
state_logger = logging.getLogger("netrom.state")
state_logger.setLevel(logging.DEBUG)
state_logger.addHandler(logging.StreamHandler(sys.stdout))
scheduler = Scheduler()
# Configure and initialize I/O device and L2
port_config = PortConfig.from_dict(0, {
"port.enabled": True,
"port.type": "serial",
"serial.device": args.port,
"serial.speed": args.baud
})
# Initialize I/O device and L2
l3_protocols = L3Protocols()
l2_multi = DefaultLinkMultiplexer(L3PriorityQueue, scheduler)
l2_queueing = L2FIFOQueue(20, AX25Protocol.maximum_frame_size())
l2 = AX25Protocol(port_config, port_config.port_id(), AX25Call.parse(args.local_call), scheduler,
l2_queueing, l2_multi, l3_protocols)
kiss = KISSProtocol(port_config.port_id(), l2_queueing, port_config.get_boolean("kiss.checksum", False))
SerialDevice(kiss,
port_config.get("serial.device"),
port_config.get_int("serial.speed"),
port_config.get_float("serial.timeout"),
scheduler)
scheduler.submit(L2IOLoop(l2_queueing, l2))
# Initialize L3 and L4
network_config = NetworkConfig.from_dict({
"netrom.node.call": args.local_call,
"netrom.node.alias": args.local_alias,
"netrom.ttl": 7,
"netrom.nodes.interval": 60,
"netrom.obs.init": 6,
"netrom.obs.min": 4,
"netrom.nodes.quality.min": 74
})
# Register L3 protocols
netrom_l3 = NetRomL3(AX25Call.parse(network_config.node_call()), network_config.node_alias(),
scheduler, l2_multi, NetRomRoutingTable(network_config.node_alias()))
l3_protocols.register(netrom_l3)
# Create the L4 protocol
netrom_l4 = NetRomTransportProtocol(network_config, netrom_l3, scheduler)
async def wait_for_network():
tty = TTY()
loop.add_reader(sys.stdin, tty.handle_stdin)
loop.add_signal_handler(signal.SIGTERM, tty.handle_signal, loop, scheduler)
loop.add_signal_handler(signal.SIGINT, tty.handle_signal, loop, scheduler)
remote_call = AX25Call.parse(args.remote_call)
while True:
(found, mtu) = netrom_l3.route_packet(NetRomAddress.from_call(remote_call))
if found:
break
await asyncio.sleep(0.200)
main_logger.info(f"Learned route to {remote_call}")
await asyncio.sleep(1.200)
netrom_l4.open(protocol_factory=lambda: tty,
local_call=AX25Call.parse(args.local_call),
remote_call=AX25Call.parse(args.remote_call),
origin_user=AX25Call(args.local_alias),
origin_node=AX25Call(args.local_call))
loop = asyncio.get_event_loop()
loop.create_task(wait_for_network())
try:
loop.run_forever()
finally:
loop.close()
def from_safe_dict(cls, d):
return cls(neighbor=AX25Call.parse(d["neighbor"]),
dest=AX25Call.parse(d["destination"]),
next_hop=AX25Call.parse(d["next_hop"]),
quality=d["quality"],
obsolescence=d["obsolescence"])
async def main_async():
parser = argparse.ArgumentParser(
description='Decode packets from a serial port')
parser.add_argument("config", help="Config file")
parser.add_argument("--debug", action="store_true")
args = parser.parse_args()
s = Settings(".", args.config)
node_settings = s.node_config()
# Create the main event loop
loop = asyncio.get_event_loop()
dlms = []
for port_config in s.port_configs():
in_queue: asyncio.Queue = asyncio.Queue()
out_queue: asyncio.Queue = asyncio.Queue()
asyncio.create_task(kiss_port_factory(in_queue, out_queue,
port_config))
# Wire the port with an AX25 layer
dlm = DataLinkManager(AX25Call.parse(node_settings.node_call()),
port_config.port_id(), in_queue, out_queue,
loop.create_future)
dlms.append(dlm)
# Wire up Layer 3 and default L2 app
nl = NetworkManager(s.network_configs(), loop)
for dlm in dlms:
nl.attach_data_link(dlm)
dlm.add_l3_handler(IdHandler())
# Bind apps to netrom and start running the app servers
for app_config in s.app_configs():
# This multiplexer bridges the unix socket server and the network connections
multiplexer = TransportMultiplexer()
# We have a single unix socket connection
unix_factory = partial(NetromAppProtocol, app_config.app_name(),
AX25Call.parse(app_config.app_call()),
app_config.app_alias(), nl, multiplexer)
logger.info(
f"Creating unix socket server for {app_config.app_call()} at {app_config.app_socket()}"
)
await loop.create_unix_server(unix_factory,
app_config.app_socket(),
start_serving=True)
# And many network connections
network_factory = partial(MultiplexingProtocol, multiplexer)
nl.bind_server(AX25Call.parse(app_config.app_call()),
app_config.app_alias(), network_factory)
node_app_factory = partial(CommandProcessorProtocol, s, dlms, nl)
for dlm in dlms:
# TODO add a bind_server thing here too?
dlm.add_l3_handler(DataLinkAdapter(dlm, node_app_factory))
node_call = s.network_configs().node_call()
node_alias = s.network_configs().node_alias()
# Make a default application for L4
nl.bind_server(AX25Call.parse(node_call), node_alias, node_app_factory)
if node_settings.admin_enabled():
await loop.create_server(protocol_factory=node_app_factory,
host=node_settings.admin_listen(),
port=node_settings.admin_port(),
start_serving=True)
# Configure logging
logging.config.fileConfig("config/logging.ini",
disable_existing_loggers=False)
event_logger = logging.getLogger("events")
event_logger.setLevel(logging.INFO)
event_logger.addHandler(handler)
# Start processing packets
tasks = [dlm.start() for dlm in dlms]
tasks.append(nl.start())
logger.info("Packet engine started")
await asyncio.wait(tasks)
def main():
parser = argparse.ArgumentParser(
description='Broadcast to mesh network over serial device')
parser.add_argument("device", help="Serial port to open")
parser.add_argument("baud", type=int, help="Baudrate to use")
parser.add_argument("callsign", help="Your callsign (e.g., K4DBZ-10)")
parser.add_argument("address", help="Local address, e.g., 00.1a")
parser.add_argument("port", type=int, help="Port", default=10)
parser.add_argument("--debug", action="store_true")
args = parser.parse_args()
# Configure logging
main_logger = logging.getLogger("root")
main_logger.setLevel(logging.ERROR)
main_logger.addHandler(logging.StreamHandler(sys.stdout))
if args.debug:
main_logger.setLevel(logging.DEBUG)
state_logger = logging.getLogger("ax25.state")
state_logger.setLevel(logging.DEBUG)
state_logger.addHandler(logging.StreamHandler(sys.stdout))
scheduler = Scheduler()
# Configure and initialize I/O device and L2
port_config = PortConfig.from_dict(
0, {
"port.enabled": True,
"port.type": "serial",
"serial.device": args.device,
"serial.speed": args.baud
})
# Initialize I/O device and L2
l3_protocols = L3Protocols()
l2_multi = DefaultLinkMultiplexer(L3PriorityQueue, scheduler)
l2_queueing = L2FIFOQueue(20, AX25Protocol.maximum_frame_size())
l2 = AX25Protocol(port_config, port_config.port_id(),
AX25Call.parse(args.callsign), scheduler, l2_queueing,
l2_multi, l3_protocols)
kiss = KISSProtocol(port_config.port_id(), l2_queueing,
port_config.get_boolean("kiss.checksum", False))
SerialDevice(kiss, port_config.get("serial.device"),
port_config.get_int("serial.speed"),
port_config.get_float("serial.timeout"), scheduler)
scheduler.submit(L2IOLoop(l2_queueing, l2))
addr = MeshAddress.parse(args.address)
mesh_l3 = MeshProtocol(our_address=addr,
link_multiplexer=l2_multi,
scheduler=scheduler)
l3_protocols.register(mesh_l3)
mesh_l4 = MeshTransportManager(mesh_l3)
tty = TTY()
loop = asyncio.get_event_loop()
loop.add_reader(sys.stdin, tty.handle_stdin)
loop.add_signal_handler(signal.SIGTERM, tty.handle_signal, loop, scheduler)
loop.add_signal_handler(signal.SIGINT, tty.handle_signal, loop, scheduler)
mesh_l4.connect(protocol_factory=lambda: tty,
port=args.port,
local_address=addr,
remote_address=MeshProtocol.BroadcastAddress)
try:
loop.run_forever()
finally:
loop.close()
