1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
#!/usr/bin/env python
# Thu, 13 Mar 14 (PDT)
# plt-test.py: Test packet-level attributes
# Copyright (C) 2015, Nevil Brownlee, U Auckland | WAND
import socket
import sys
from plt_testing import *
#dt = datetime.datetime.utcnow() # class
#print "***** dt = {0}".format(dt)
#t = plt.ipp_obj(4, "1234")
#print "t = {0}\n".format(t)
v = plt.version()
test_println("plt version = {0}".format(v), get_tag())
#d = plt.Data(3)
#print "d={0}\n".format(d)
t = get_example_trace('anon-v4.pcap')
p = plt.packet()
np = 0
while np != 12:
t.read_packet(p)
# print "np=%d, %s" % (np, p)
test_println("np=%d" % (np), get_tag())
np += 1
ip = p.ip
if ip:
# print "%3d, ip = <%s>" % (np, ip)
test_println("%3d" % (np), get_tag())
test_println(" wlen=%d, caplen=%d, src=%s, dst=%s" % (
p.wire_len, p.capture_len, ip.src_prefix, ip.dst_prefix), get_tag("np:"+str(np)))
n = 0
for pkt in t:
n += 1 # Wireshark uses 1-org packet numbers
test_println("n=%d" % (n), get_tag())
linktype = pkt.linktype
ethertype = pkt.ethertype
test_println("n=%d, linktype=%d, ethertype=%04x " % (n, linktype, ethertype), get_tag("n:"+str(n)))
if n == 5:
break
ip = pkt.ip
if not ip:
continue
pt = pkt.time
test_println("time = >{0}<".format(pt), get_tag("n:"+str(n)))
# pkt.time = 20.5
# print "seconds=%f, ts_sec=%u, erf_time=%llu" % (pkt.seconds, pkt.ts_sec, pkt.erf_time)
test_println("seconds={0}, ts_sec={1}, erf_time={2}".format(pkt.seconds, pkt.ts_sec, pkt.erf_time), get_tag("n:"+str(n)))
wlen = pkt.wire_len; clen = pkt.capture_len
test_println("n=%d, wlen=%d, clen=%d" % (n, wlen, clen), get_tag("n:"+str(n)))
# print "***** ip={0}\n" . format(ip)
test_println(" ver=%d, %s -> %s, proto=%d, tclass=%d, ttl=%d, hlen=%d, plen=%d" % (
ip.version, ip.src_prefix, ip.dst_prefix,
ip.proto, ip.traffic_class, ip.hop_limit, ip.hdr_len, ip.pkt_len), get_tag("n:"+str(n)))
# io = 55
# print "io = {0}".format(io)
ip.traffic_class = 55;
ip.hop_limit = (123);
test_println("== ver=%d, %s -> %s, proto=%d, tclass=%d, ttl=%d, hlen=%d, plen=%d" % (
ip.version, ip.src_prefix, ip.dst_prefix,
ip.proto, ip.traffic_class, ip.hop_limit, ip.hdr_len, ip.pkt_len), get_tag("n:"+str(n)))
ethertype = ip.ethertype
linktype = ip.linktype
test_println(" from ip: linktype=%d, ethertype=%04x" % (linktype, ethertype), get_tag("n:"+str(n)))
# print "ip.info() = [%s]" % (ip.info())
test_println("%s -> %s " % (ip.src_prefix, ip.dst_prefix), get_tag("n:"+str(n)))
ip.src_prefix = ipp.from_s("1.2.3.4")
ip.dst_prefix = ipp.from_s("5.6.7.8")
test_println("now %s => %s " % (ip.src_prefix, ip.dst_prefix), get_tag("n:"+str(n)))
# ip.version = 5 # Read-only!
t.close() # Don't do this inside the loop!
test_println("%d packets in trace\n" % (n), get_tag())
|
