Reticulum/RNS/Reticulum.py

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from Interfaces import *
import ConfigParser
from vendor.configobj import ConfigObj
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import RNS
import atexit
import struct
import array
import os.path
import os
import RNS
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#import traceback
class Reticulum:
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MTU = 500
HEADER_MAXSIZE = 23
PAD_AES_HMAC = 64
MDU = MTU - HEADER_MAXSIZE
LINK_MDU = MDU - PAD_AES_HMAC
router = None
config = None
configdir = os.path.expanduser("~")+"/.reticulum"
configpath = ""
storagepath = ""
cachepath = ""
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@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"
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Reticulum.__allow_unencrypted = False
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Reticulum.__use_implicit_proof = True
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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):
self.config = ConfigObj(self.configpath)
RNS.log("Configuration loaded from "+self.configpath)
else:
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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()
Reticulum.router = self
RNS.Transport.start()
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atexit.register(Reticulum.exit_handler)
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)
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if RNS.loglevel < 0:
RNS.loglevel = 0
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if RNS.loglevel > 7:
RNS.loglevel = 7
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if "reticulum" in self.config:
for option in self.config["reticulum"]:
value = self.config["reticulum"][option]
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if option == "use_implicit_proof":
if value == "true":
Reticulum.__use_implicit_proof = True
if value == "false":
Reticulum.__use_implicit_proof = False
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if option == "allow_unencrypted":
if value == "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
for name in self.config["interfaces"]:
c = self.config["interfaces"][name]
try:
if c["type"] == "UdpInterface":
interface = UdpInterface.UdpInterface(
RNS.Transport,
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name,
c["listen_ip"],
int(c["listen_port"]),
c["forward_ip"],
int(c["forward_port"])
)
if "outgoing" in c and c["outgoing"].lower() == "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")
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interface = SerialInterface.SerialInterface(
RNS.Transport,
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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)
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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")
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interface = KISSInterface.KISSInterface(
RNS.Transport,
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name,
port,
speed,
databits,
parity,
stopbits,
preamble,
txtail,
persistence,
slottime,
flow_control
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)
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
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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
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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
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
)
if "outgoing" in c and c["outgoing"].lower() == "true":
interface.OUT = True
else:
interface.OUT = False
RNS.Transport.interfaces.append(interface)
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)
def createDefaultConfig(self):
self.config = ConfigObj()
self.config.filename = Reticulum.configpath
self.config["interfaces"] = {}
self.config["interfaces"]["Default UDP Interface"] = {}
self.config["interfaces"]["Default UDP Interface"]["type"] = "UdpInterface"
self.config["interfaces"]["Default UDP Interface"]["listen_ip"] = "0.0.0.0"
self.config["interfaces"]["Default UDP Interface"]["listen_port"] = 7777
self.config["interfaces"]["Default UDP Interface"]["forward_ip"] = "255.255.255.255"
self.config["interfaces"]["Default UDP Interface"]["forward_port"] = 7777
self.config["interfaces"]["Default UDP Interface"]["use_as_outgoing"] = "true"
if not os.path.isdir(Reticulum.configdir):
os.makedirs(Reticulum.configdir)
self.config.write()
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self.applyConfig()
@staticmethod
def should_allow_unencrypted():
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return Reticulum.__allow_unencrypted
@staticmethod
def should_use_implicit_proof():
return Reticulum.__use_implicit_proof