def start():
if Transport.identity == None:
transport_identity_path = RNS.Reticulum.configdir + "/transportidentity"
if os.path.isfile(transport_identity_path):
Transport.identity = RNS.Identity.from_file(
transport_identity_path)
if Transport.identity == None:
RNS.log("No valid Transport Identity on disk, creating...",
RNS.LOG_VERBOSE)
Transport.identity = RNS.Identity()
Transport.identity.save(transport_identity_path)
else:
RNS.log("Loaded Transport Identity from disk", RNS.LOG_VERBOSE)
packet_hashlist_path = RNS.Reticulum.configdir + "/packet_hashlist"
if os.path.isfile(packet_hashlist_path):
try:
file = open(packet_hashlist_path, "r")
Transport.packet_hashlist = umsgpack.unpackb(file.read())
file.close()
except Exception as e:
RNS.log(
"Could not load packet hashlist from disk, the contained exception was: "
+ str(e), RNS.LOG_ERROR)
thread = threading.Thread(target=Transport.jobloop)
thread.setDaemon(True)
thread.start()
RNS.log("Transport instance " + str(Transport.identity) + " started")
def hashmap_update_packet(self, plaintext): if not self.status == Resource.FAILED: self.last_activity = time.time() self.retries_left = self.max_retries update = umsgpack.unpackb(plaintext[RNS.Identity.HASHLENGTH/8:]) self.hashmap_update(update[0], update[1])
def unpack(data): dictionary = umsgpack.unpackb(data) adv = ResourceAdvertisement() adv.t = dictionary["t"] adv.d = dictionary["d"] adv.n = dictionary["n"] adv.h = dictionary["h"] adv.r = dictionary["r"] adv.m = dictionary["m"] adv.f = dictionary["f"] adv.e = True if (adv.f & 0x01) == 0x01 else False adv.c = True if ((adv.f >> 1) & 0x01) == 0x01 else False return adv
def rtt_packet(self, packet):
try:
# TODO: This is crude, we should use the delta
# to model a more representative per-bit round
# trip time, and use that to set a sensible RTT
# expectancy for the link. This will have to do
# for now though.
measured_rtt = time.time() - self.request_time
plaintext = self.decrypt(packet.data)
rtt = umsgpack.unpackb(plaintext)
self.rtt = max(measured_rtt, rtt)
self.status = Link.ACTIVE
if self.owner.callbacks.link_established != None:
self.owner.callbacks.link_established(self)
except Exception as e:
RNS.log(
"Error occurred while processing RTT packet, tearing down link",
RNS.LOG_ERROR)
traceback.print_exc()
self.teardown()