def should_drop_packet(packet, add_line=True, scale=1.0):
rand = random()
dna_data = "".join(string2QUATS(packet))
drop_chance, data, _ = DNARules.apply_all_rules_with_data(dna_data)
drop_chance = scale * drop_chance
if add_line:
line = ("random_bytes," + ",".join([str(round(x, 4)) for x in data]) +
"," + str(drop_chance) + "," + str(rand) + "," +
str(drop_chance > rand))
lines.append(line)
# drop packet if rand bigger than the drop_chance for this Packet.
return drop_chance > rand
def should_drop_packet(packet, add_line=True, scale=1.0):
if not useDNARules:
return False
rand = random()
drop_chance, data, _ = DNARules.apply_all_rules_with_data(packet)
drop_chance = scale * drop_chance
if add_line:
line = (algo_type[0] + "," + str(hex(packet.getCRC())) + "," +
",".join([str(round(x, 4))
for x in data]) + "," + str(drop_chance) + "," +
str(rand) + "," + str(drop_chance > rand))
lines.append(line)
return drop_chance > rand
def permute(data, add_line=True):
dna_data = "".join(string2QUATS(data))
drop_chance, data, _ = DNARules.apply_all_rules_with_data(dna_data)
drop_chance = 0.01 * drop_chance
if add_line:
line = ("ReedSolomon" + "," + str() + "," +
",".join([str(round(x, 4))
for x in data]) + "," + str(drop_chance))
lines.append(line)
lim_drop_chance = min(drop_chance, 0.9999999)
number_of_permutations = int(math.ceil(lim_drop_chance * len(dna_data)))
dna_data = list(dna_data)
for i in range(number_of_permutations):
dna_data[i] = flip_base(
dna_data[i]) # flip the dna-base to an incorrrect one
data = b""
for x in list(zip(*[iter(dna_data)] * 4)):
data += quats_to_bytes("".join(x))
return data