def dummy(cls, conf, net, dest, sender):
''' The class method used for creating a dummy Packet. '''
payload = random_string(conf["packet"]["packet_size"])
rand_route = net.select_random_route()
rand_route = rand_route + [dest]
return cls(conf=conf, route=rand_route, payload=payload, sender=sender, dest=dest, type="DUMMY", msg_id="-")
def ack(cls, conf, net, dest, sender, packet_id, msg_id):
''' The class method used for creating an ack Packet. '''
payload = random_string(conf["packet"]["packet_size"])
rand_route = net.select_random_route()
rand_route = rand_route + [dest]
return cls(conf=conf, route=rand_route, payload=payload, sender=sender, dest=dest, packet_id=packet_id, msg_id=msg_id, type="ACK")
def __init__(self, conf, route, payload, sender, dest, type, packet_id = None, msg_id="DUMMY", order=1, num=1, message=None):
self.conf = conf
self.id = packet_id or random_string(32)
self.route = route
self.payload = payload
self.real_sender = sender
self.dest = dest
self.msg_id = msg_id
self.message = message
self.fragments = num
self.type = type
self.pool_logs = []
# State
self.dropped = False
self.current_node = -1
self.times_transmitted = 0
self.ACK_Received = False
self.time_queued = None
self.time_sent = None
self.time_delivered = None
# Measurements
self.sender_estimates = numpy.array([0.0, 0.0, 0.0]) #Other, A, B
self.sender_estimates[self.real_sender.label] = 1.0
self.probability_mass = numpy.zeros(self.conf["misc"]["num_target_packets"])
if self.type=="REAL":
self.message.reconstruct.add(self.id)
def random(cls, conf, net, sender, dest):
''' This class method creates a random message, with random payload. '''
size = random.randint(conf["message"]["min_msg_size"], conf["message"]["max_msg_size"])
payload = random_string(size)
m = cls(conf=conf, net=net, payload=payload, real_sender=sender, dest=dest)
return m
def __init__(self, env, conf, net=None, label=0, loggers=None, id=None):
self.env = env
self.conf = conf
self.id = id or random_string(self.conf["misc"]["id_len"])
self.net = net
self.pkts_received = 0
self.pkts_sent = 0
self.avg_delay = 0.0 if self.conf["mixnodes"][
"avg_delay"] == 0.0 else float(self.conf["mixnodes"]["avg_delay"])
# State
self.pool = {}
self.inter_pkts = 0 #ctr which count how many new packets arrived since the last time a packet left
self.probability_mass = None
self.sender_estimates = None
self.pool = {}
self.mixlogging = False
self.loggers = loggers if loggers else None
(self.packet_logger, self.message_logger,
self.entropy_logger) = self.loggers
#State
self.alive = True
self.rate_sending = 1.0 / float(self.conf["clients"]["rate_sending"])
self.rate_generating = float(
self.conf["clients"]["sim_add_buffer"]
) # this specifies how often we put a real message into a buffer
self.cover_traffic = self.conf["clients"]["cover_traffic"]
self.cover_traffic_rate = 1.0 / float(
self.conf["clients"]["cover_traffic_rate"])
self.verbose = False
self.pkt_buffer_out = []
self.pkt_buffer_out_not_ack = {}
self.label = label
self.send_dummy_ACK = self.conf["clients"]["dummies_acks"]
self.send_ACK = self.conf["clients"]["ACK"]
self.num_received_packets = 0
self.msg_buffer_in = {}
self.start_logs = False
self.batch_num = 0
self.free_to_batch = True
def __init__(self, conf, net, payload, dest, real_sender, id=None):
self.conf = conf
self.id = id or random_string(self.conf["misc"]["id_len"])
self.payload = payload
self.real_sender = real_sender
self.time_queued = None # The first packet to be added in the queue (sender updates this)
self.time_sent = None # The first packet to leave the client (sender updates this)
self.time_delivered = None # The last packet to arrive (The recipient of msg will fill this in)
self.transit_time = None
self.reconstruct = set() # The IDs we need to reconstruct.
# State on reception
self.complete_receiving = False
# Packets
self.pkts = self.split_into_packets(net, dest)
def dummy_ack(cls, conf, net, dest, sender):
payload = random_string(conf["packet"]["ack_packet_size"])
rand_route = net.select_random_route()
rand_route = rand_route + [dest]
return cls(conf=conf, route=rand_route, payload=payload, sender=sender, dest=dest, type="DUMMY_ACK", msg_id="DUMMY_ACK")