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#!/usr/bin/env python
# from switch_calc_headers import *
from scapy.all import *
from nf_sim_tools import *
from collections import OrderedDict
import sss_sdnet_tuples
########################
# pkt generation tools #
########################
pktsApplied = []
pktsExpected = []
# Pkt lists for SUME simulations
nf_applied = OrderedDict()
nf_applied[0] = []
nf_applied[1] = []
nf_applied[2] = []
nf_applied[3] = []
nf_expected = OrderedDict()
nf_expected[0] = []
nf_expected[1] = []
nf_expected[2] = []
nf_expected[3] = []
nf_port_map = {
"nf0":0b00000001,
"nf1":0b00000100,
"nf2":0b00010000,
"nf3":0b01000000,
"dma0":0b00000010
}
nf_id_map = {
"nf0":0,
"nf1":1,
"nf2":2,
"nf3":3
}
sss_sdnet_tuples.clear_tuple_files()
def applyPkt(pkt, ingress, time):
print("Applying pkt on {} at {}: ".format(ingress, time))
pktsApplied.append(pkt)
sss_sdnet_tuples.sume_tuple_in['src_port'] = nf_port_map[ingress]
sss_sdnet_tuples.sume_tuple_expect['src_port'] = nf_port_map[ingress]
pkt.time = time
nf_applied[nf_id_map[ingress]].append(pkt)
def expPkt(pkt, egress):
pktsExpected.append(pkt)
sss_sdnet_tuples.sume_tuple_expect['dst_port'] = nf_port_map[egress]
sss_sdnet_tuples.write_tuples()
if egress in ["nf0","nf1","nf2","nf3"]:
nf_expected[nf_id_map[egress]].append(pkt)
elif egress == 'bcast':
nf_expected[0].append(pkt)
nf_expected[1].append(pkt)
nf_expected[2].append(pkt)
nf_expected[3].append(pkt)
def print_summary(pkts):
for pkt in pkts:
print "summary = ", pkt.summary()
def write_pcap_files():
wrpcap("src.pcap", pktsApplied)
wrpcap("dst.pcap", pktsExpected)
for i in nf_applied.keys():
if (len(nf_applied[i]) > 0):
wrpcap('nf{0}_applied.pcap'.format(i), nf_applied[i])
for i in nf_expected.keys():
if (len(nf_expected[i]) > 0):
wrpcap('nf{0}_expected.pcap'.format(i), nf_expected[i])
# i = 0..3
for i in nf_applied.keys():
print "nf{0}_applied times: ".format(i), [p.time for p in nf_applied[i]]
#####################
# generate testdata #
#####################
MAC1 = "08:11:11:11:11:08"
MAC2 = "08:22:22:22:22:08"
pktCnt = 0
INDEX_WIDTH = 4
REG_DEPTH = 2**INDEX_WIDTH
# Not sure what this is used for
NUM_KEYS = 4
lookup_table = {
0: 0x00000001,
1: 0x00000010,
2: 0x00000100,
3: 0x00001000
}
def test_nat64():
""" packets for a certain mac always go to nf0 """
pkgCnt = 1
# From v4 to v6
e4 = Ether(dst=MAC2, src=MAC1)
i4 = IP(src = "10.0.0.42", dst = "10.0.0.66")
u4 = UDP(sport=5000, dport=2345)
p4 = 500 * "A"
pkg4 = e4 / i4 / u4 / p4
applyPkt(pkg4, "nf2", pkgCnt)
e6 = e4
i6 = IPv6(src = "2001:db8:42::a00:2a", dst = "2001:db8:42::42")
u6 = u4
p6 = p4
pkg6 = e6 / i6 / u6 / p6
expPkt(pkg6, 'nf3')
pkgCnt += 1
# From v6 to v4
e6 = Ether(dst=MAC1, src=MAC2)
i6 = IPv6(dst = "2001:db8:42::a00:2a", src = "2001:db8:42::42")
u6 = UDP(dport=5000, sport=2345)
p6 = 500 * "A"
pkg6 = e6 / i6 / u6 / p6
e4 = e6
i4 = IP(dst = "10.0.0.42", src = "10.0.0.66", id=0)
u4 = u6
p4 = p6
pkg4 = e4 / i4 / u4 / p4
applyPkt(pkg6, "nf3", pkgCnt)
expPkt(pkg4, 'nf2')
test_nat64()
write_pcap_files()