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0.1.2
Reticulum/RNS/Reticulum.py
Mark Qvist e3bd91b82d Changed transport init
2020-05-14 16:23:13 +02:00

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from .Interfaces import *
import configparser
from .vendor.configobj import ConfigObj
import RNS
import atexit
import struct
import array
import os.path
import os
import RNS
#import traceback
class Reticulum:
MTU = 500
HEADER_MAXSIZE = 23
MDU = MTU - HEADER_MAXSIZE
router = None
config = None
configdir = os.path.expanduser("~")+"/.reticulum"
configpath = ""
storagepath = ""
cachepath = ""
@staticmethod
def exit_handler():
RNS.Transport.exitHandler()
RNS.Identity.exitHandler()
def __init__(self,configdir=None):
if configdir != None:
Reticulum.configdir = configdir
Reticulum.configpath = Reticulum.configdir+"/config"
Reticulum.storagepath = Reticulum.configdir+"/storage"
Reticulum.cachepath = Reticulum.configdir+"/storage/cache"
Reticulum.__allow_unencrypted = False
Reticulum.__transport_enabled = False
Reticulum.__use_implicit_proof = True
self.local_interface_port = 37428
self.share_instance = True
self.is_shared_instance = False
self.is_connected_to_shared_instance = False
self.is_standalone_instance = False
if not os.path.isdir(Reticulum.storagepath):
os.makedirs(Reticulum.storagepath)
if not os.path.isdir(Reticulum.cachepath):
os.makedirs(Reticulum.cachepath)
if os.path.isfile(self.configpath):
try:
self.config = ConfigObj(self.configpath)
RNS.log("Configuration loaded from "+self.configpath)
except Exception as e:
RNS.log("Could not parse the configuration at "+self.configpath, RNS.LOG_ERROR)
RNS.log("Check your configuration file for errors!", RNS.LOG_ERROR)
RNS.panic()
else:
RNS.log("Could not load config file, creating default configuration file...")
self.createDefaultConfig()
RNS.log("Default config file created. Make any necessary changes in "+Reticulum.configdir+"/config and start Reticulum again.")
RNS.log("Exiting now!")
exit(1)
self.applyConfig()
RNS.Identity.loadKnownDestinations()
RNS.Transport.start(self)
atexit.register(Reticulum.exit_handler)
def start_local_interface(self):
if self.share_instance:
try:
interface = LocalInterface.LocalServerInterface(
RNS.Transport,
self.local_interface_port
)
interface.OUT = True
RNS.Transport.interfaces.append(interface)
self.is_shared_instance = True
RNS.log("Started shared instance interface: "+str(interface), RNS.LOG_DEBUG)
except Exception as e:
try:
interface = LocalInterface.LocalClientInterface(
RNS.Transport,
"Local shared instance",
self.local_interface_port)
interface.target_port = self.local_interface_port
interface.OUT = True
RNS.Transport.interfaces.append(interface)
self.is_shared_instance = False
self.is_standalone_instance = False
self.is_connected_to_shared_instance = True
RNS.log("Connected to local shared instance via: "+str(interface), RNS.LOG_DEBUG)
except Exception as e:
RNS.log("Local shared instance appears to be running, but it could not be connected", RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
self.is_shared_instance = False
self.is_standalone_instance = True
self.is_connected_to_shared_instance = False
else:
self.is_shared_instance = False
self.is_standalone_instance = True
self.is_connected_to_shared_instance = False
def applyConfig(self):
if "logging" in self.config:
for option in self.config["logging"]:
value = self.config["logging"][option]
if option == "loglevel":
RNS.loglevel = int(value)
if RNS.loglevel < 0:
RNS.loglevel = 0
if RNS.loglevel > 7:
RNS.loglevel = 7
if "reticulum" in self.config:
for option in self.config["reticulum"]:
value = self.config["reticulum"][option]
if option == "share_instance":
value = self.config["reticulum"].as_bool(option)
self.share_instance = value
if option == "shared_instance_port":
value = int(self.config["reticulum"][option])
self.local_interface_port = value
if option == "enable_transport":
v = self.config["reticulum"].as_bool(option)
if v == True:
Reticulum.__transport_enabled = True
if option == "use_implicit_proof":
v = self.config["reticulum"].as_bool(option)
if v == True:
Reticulum.__use_implicit_proof = True
if v == False:
Reticulum.__use_implicit_proof = False
if option == "allow_unencrypted":
v = self.config["reticulum"].as_bool(option)
if v == True:
RNS.log("", RNS.LOG_CRITICAL)
RNS.log("! ! ! ! ! ! ! ! !", RNS.LOG_CRITICAL)
RNS.log("", RNS.LOG_CRITICAL)
RNS.log("Danger! Encryptionless links have been allowed in the config file!", RNS.LOG_CRITICAL)
RNS.log("Beware of the consequences! Any data sent over a link can potentially be intercepted,", RNS.LOG_CRITICAL)
RNS.log("read and modified! If you are not absolutely sure that you want this,", RNS.LOG_CRITICAL)
RNS.log("you should exit Reticulum NOW and change your config file!", RNS.LOG_CRITICAL)
RNS.log("", RNS.LOG_CRITICAL)
RNS.log("! ! ! ! ! ! ! ! !", RNS.LOG_CRITICAL)
RNS.log("", RNS.LOG_CRITICAL)
Reticulum.__allow_unencrypted = True
self.start_local_interface()
if self.is_shared_instance or self.is_standalone_instance:
interface_names = []
for name in self.config["interfaces"]:
if not name in interface_names:
c = self.config["interfaces"][name]
try:
if ("interface_enabled" in c) and c.as_bool("interface_enabled") == True:
if c["type"] == "UdpInterface":
interface = UdpInterface.UdpInterface(
RNS.Transport,
name,
c["listen_ip"],
int(c["listen_port"]),
c["forward_ip"],
int(c["forward_port"])
)
if "outgoing" in c and c.as_bool("outgoing") == True:
interface.OUT = True
else:
interface.OUT = False
RNS.Transport.interfaces.append(interface)
if c["type"] == "TCPServerInterface":
interface = TCPInterface.TCPServerInterface(
RNS.Transport,
name,
c["listen_ip"],
int(c["listen_port"])
)
if "outgoing" in c and c.as_bool("outgoing") == True:
interface.OUT = True
else:
interface.OUT = False
RNS.Transport.interfaces.append(interface)
if c["type"] == "TCPClientInterface":
interface = TCPInterface.TCPClientInterface(
RNS.Transport,
name,
c["target_host"],
int(c["target_port"])
)
if "outgoing" in c and c.as_bool("outgoing") == True:
interface.OUT = True
else:
interface.OUT = False
RNS.Transport.interfaces.append(interface)
if c["type"] == "SerialInterface":
port = c["port"] if "port" in c else None
speed = int(c["speed"]) if "speed" in c else 9600
databits = int(c["databits"]) if "databits" in c else 8
parity = c["parity"] if "parity" in c else "N"
stopbits = int(c["stopbits"]) if "stopbits" in c else 1
if port == None:
raise ValueError("No port specified for serial interface")
interface = SerialInterface.SerialInterface(
RNS.Transport,
name,
port,
speed,
databits,
parity,
stopbits
)
if "outgoing" in c and c["outgoing"].lower() == "true":
interface.OUT = True
else:
interface.OUT = False
RNS.Transport.interfaces.append(interface)
if c["type"] == "KISSInterface":
preamble = int(c["preamble"]) if "preamble" in c else None
txtail = int(c["txtail"]) if "txtail" in c else None
persistence = int(c["persistence"]) if "persistence" in c else None
slottime = int(c["slottime"]) if "slottime" in c else None
flow_control = (True if c["flow_control"] == "true" else False) if "flow_control" in c else False
port = c["port"] if "port" in c else None
speed = int(c["speed"]) if "speed" in c else 9600
databits = int(c["databits"]) if "databits" in c else 8
parity = c["parity"] if "parity" in c else "N"
stopbits = int(c["stopbits"]) if "stopbits" in c else 1
if port == None:
raise ValueError("No port specified for serial interface")
interface = KISSInterface.KISSInterface(
RNS.Transport,
name,
port,
speed,
databits,
parity,
stopbits,
preamble,
txtail,
persistence,
slottime,
flow_control
)
if "outgoing" in c and c["outgoing"].lower() == "true":
interface.OUT = True
else:
interface.OUT = False
RNS.Transport.interfaces.append(interface)
if c["type"] == "AX25KISSInterface":
preamble = int(c["preamble"]) if "preamble" in c else None
txtail = int(c["txtail"]) if "txtail" in c else None
persistence = int(c["persistence"]) if "persistence" in c else None
slottime = int(c["slottime"]) if "slottime" in c else None
flow_control = (True if c["flow_control"] == "true" else False) if "flow_control" in c else False
port = c["port"] if "port" in c else None
speed = int(c["speed"]) if "speed" in c else 9600
databits = int(c["databits"]) if "databits" in c else 8
parity = c["parity"] if "parity" in c else "N"
stopbits = int(c["stopbits"]) if "stopbits" in c else 1
callsign = c["callsign"] if "callsign" in c else ""
ssid = int(c["ssid"]) if "ssid" in c else -1
if port == None:
raise ValueError("No port specified for serial interface")
interface = AX25KISSInterface.AX25KISSInterface(
RNS.Transport,
name,
callsign,
ssid,
port,
speed,
databits,
parity,
stopbits,
preamble,
txtail,
persistence,
slottime,
flow_control
)
if "outgoing" in c and c["outgoing"].lower() == "true":
interface.OUT = True
else:
interface.OUT = False
RNS.Transport.interfaces.append(interface)
if c["type"] == "RNodeInterface":
frequency = int(c["frequency"]) if "frequency" in c else None
bandwidth = int(c["bandwidth"]) if "bandwidth" in c else None
txpower = int(c["txpower"]) if "txpower" in c else None
spreadingfactor = int(c["spreadingfactor"]) if "spreadingfactor" in c else None
codingrate = int(c["codingrate"]) if "codingrate" in c else None
flow_control = (True if c["flow_control"] == "true" else False) if "flow_control" in c else False
port = c["port"] if "port" in c else None
if port == None:
raise ValueError("No port specified for RNode interface")
interface = RNodeInterface.RNodeInterface(
RNS.Transport,
name,
port,
frequency,
bandwidth,
txpower,
spreadingfactor,
flow_control
)
if "outgoing" in c and c["outgoing"].lower() == "true":
interface.OUT = True
else:
interface.OUT = False
RNS.Transport.interfaces.append(interface)
else:
RNS.log("Skipping disabled interface \""+name+"\"", RNS.LOG_VERBOSE)
except Exception as e:
RNS.log("The interface \""+name+"\" could not be created. Check your configuration file for errors!", RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
RNS.panic()
else:
RNS.log("The interface name \""+name+"\" was already used. Check your configuration file for errors!", RNS.LOG_ERROR)
RNS.panic()
def createDefaultConfig(self):
self.config = ConfigObj(__default_rns_config__)
self.config.filename = Reticulum.configpath
if not os.path.isdir(Reticulum.configdir):
os.makedirs(Reticulum.configdir)
self.config.write()
self.applyConfig()
@staticmethod
def should_allow_unencrypted():
return Reticulum.__allow_unencrypted
@staticmethod
def should_use_implicit_proof():
return Reticulum.__use_implicit_proof
@staticmethod
def transport_enabled():
return Reticulum.__transport_enabled
# Default configuration file:
__default_rns_config__ = '''# This is the default Reticulum config file.
# You should probably edit it to include any additional,
# interfaces and settings you might need.
[reticulum]
# Don't allow unencrypted links by default.
# If you REALLY need to allow unencrypted links, for example
# for debug or regulatory purposes, this can be set to true.
# This directive is optional and can be removed for brevity.
allow_unencrypted = False
# If you enable Transport, your system will route traffic
# for other peers, pass announces and serve path requests.
# Unless you really know what you're doing, this should be
# done only for systems that are suited to act as transport
# nodes, ie. if they are stationary and always-on. This
# directive is optional and can be removed for brevity.
enable_transport = False
# By default, the first program to launch the Reticulum
# Network Stack will create a shared instance, that other
# programs can communicate with. Only the shared instance
# opens all the configured interfaces directly, and other
# local programs communicate with the shared instance over
# a local socket. This is completely transparent to the
# user, and should generally be turned on. This directive
# is optional and can be removed for brevity.
share_instance = Yes
# If you want to run multiple *different* shared instances
# on the same system, you will need to specify a different
# shared instance port for each. The default is given below,
# and again, this option is optional and can be left out.
shared_instance_port = 37428
[logging]
# Valid log levels are 0 through 7:
# 0: Log only critical information
# 1: Log errors and lower log levels
# 2: Log warnings and lower log levels
# 3: Log notices and lower log levels
# 4: Log info and lower (this is the default)
# 5: Verbose logging
# 6: Debug logging
# 7: Extreme logging
loglevel = 4
# The interfaces section defines the physical and virtual
# interfaces Reticulum will use to communicate on. This
# section will contain examples for a variety of interface
# types. You can modify these or use them as a basis for
# your own config, or simply remove the unused ones.
[interfaces]
# This interface enables communication with other
# Reticulum nodes on your local ethernet networks.
# It's enabled by default, and provides basic
# connectivity to other peers in your local ethernet
# broadcast domain. You can modify it to suit your
# needs or turn it off completely.
[[Default UDP Interface]]
type = UdpInterface
interface_enabled = True
outgoing = True
listen_ip = 0.0.0.0
listen_port = 4242
forward_ip = 255.255.255.255
forward_port = 4242
# This example demonstrates a TCP server interface.
# It will listen for incoming connections on the
# specified IP address and port number.
[[TCP Server Interface]]
type = TCPServerInterface
interface_enabled = False
outgoing = True
listen_ip = 0.0.0.0
listen_port = 4242
# To connect to a TCP server interface, you would
# naturally use the TCP client interface. Here's
# an example. The target_host can either be an IP
# address or a hostname
[[TCP Client Interface]]
type = TCPClientInterface
interface_enabled = False
outgoing = True
target_host = 127.0.0.1
target_port = 4242
# Here's an example of how to add a LoRa interface
# using the RNode LoRa transceiver.
[[RNode LoRa Interface]]
type = RNodeInterface
# Enable interface if you want use it!
interface_enabled = False
# Allow transmit on interface. Setting
# this to false will create a listen-
# only interface.
outgoing = true
# Serial port for the device
port = /dev/ttyUSB0
# Set frequency to 867.2 MHz
frequency = 867200000
# Set LoRa bandwidth to 125 KHz
bandwidth = 125000
# Set TX power to 7 dBm (5 mW)
txpower = 7
# Select spreading factor 8. Valid
# range is 7 through 12, with 7
# being the fastest and 12 having
# the longest range.
spreadingfactor = 8
# Select coding rate 5. Valid range
# is 5 throough 8, with 5 being the
# fastest, and 8 the longest range.
codingrate = 5
# An example KISS modem interface. Useful for running
# Reticulum over packet radio hardware.
[[Packet Radio KISS Interface]]
type = KISSInterface
# Enable interface if you want use it!
interface_enabled = False
# Allow transmit on interface.
outgoing = true
# Serial port for the device
port = /dev/ttyUSB1
# Set the serial baud-rate and other
# configuration parameters.
speed = 115200
databits = 8
parity = none
stopbits = 1
# Whether to use KISS flow-control.
# This is useful for modems with a
# small internal packet buffer.
flow_control = false
# Set the modem preamble. A 150ms
# preamble should be a reasonable
# default, but may need to be
# increased for radios with slow-
# opening squelch and long TX/RX
# turnaround
preamble = 150
# Set the modem TX tail. In most
# cases this should be kept as low
# as possible to not waste airtime.
txtail = 10
# Configure CDMA parameters. These
# settings are reasonable defaults.
persistence = 200
slottime = 20
# If you're using Reticulum on amateur radio spectrum,
# you might want to use the AX.25 KISS interface. This
# way, Reticulum will automatically encapsulate it's
# traffic in AX.25 and also identify your stations
# transmissions with your callsign and SSID.
#
# Only do this if you really need to! Reticulum doesn't
# need the AX.25 layer for anything, and it incurs extra
# overhead on every packet to encapsulate in AX.25.
[[Packet Radio AX.25 KISS Interface]]
type = AX25KISSInterface
# Set the station callsign and SSID
callsign = NO1CLL
ssid = 0
# Enable interface if you want use it!
interface_enabled = False
# Allow transmit on interface.
outgoing = true
# Serial port for the device
port = /dev/ttyUSB2
# Set the serial baud-rate and other
# configuration parameters.
speed = 115200
databits = 8
parity = none
stopbits = 1
# Whether to use KISS flow-control.
# This is useful for modems with a
# small internal packet buffer.
flow_control = false
# Set the modem preamble. A 150ms
# preamble should be a reasonable
# default, but may need to be
# increased for radios with slow-
# opening squelch and long TX/RX
# turnaround
preamble = 150
# Set the modem TX tail. In most
# cases this should be kept as low
# as possible to not waste airtime.
txtail = 10
# Configure CDMA parameters. These
# settings are reasonable defaults.
persistence = 200
slottime = 20
'''.splitlines()
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