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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
|
// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <asiolink/io_address.h>
#include <dhcp/tests/pkt_captures.h>
#include <util/encode/hex.h>
#include <string>
/// @file pkt_captures4.cc
///
/// @brief contains packet captures imported from Wireshark
///
/// These are actual packets captured over wire. They are used in various
/// tests.
///
/// The procedure to export Wireshark -> unit-tests is manual, but rather
/// easy to follow:
/// 1. Open a file in wireshark
/// 2. Find the packet you want to export
/// 3. There's a protocol stack (Frame, Ethernet, IPv6, UDP, DHCPv6, ...)
/// 4. Right click on DHCPv6 -> Copy -> Bytes -> Hex Stream
/// 5. Paste it as: string hex_string="[paste here]";
/// 6. Coding guidelines line restrictions apply, so wrap your code as necessary
/// 7. Make sure you describe the capture appropriately
/// 8. Follow whatever rest of the methods are doing (set ports, ifaces etc.)
/// 9. To easily copy packet description, click File... -> Extract packet
/// dissections -> as plain text file...
/// (Make sure that the packet is expanded in the view. The text file will
/// contain whatever expansion level you have in the graphical tree.)
using namespace std;
using namespace isc::dhcp;
using namespace isc::asiolink;
namespace isc {
namespace dhcp {
namespace test {
Pkt4Ptr PktCaptures::packetFromCapture(const std::string& hex_string) {
std::vector<uint8_t> bin;
// Decode the hex string and store it in bin (which happens
// to be OptionBuffer format)
isc::util::encode::decodeHex(hex_string, bin);
Pkt4Ptr pkt(new Pkt4(&bin[0], bin.size()));
captureSetDefaultFields(pkt);
return (pkt);
}
void PktCaptures::captureSetDefaultFields(const Pkt4Ptr& pkt) {
pkt->setRemotePort(546);
pkt->setRemoteAddr(IOAddress("10.0.0.2"));
pkt->setLocalPort(0);
pkt->setLocalAddr(IOAddress("10.0.0.1"));
pkt->setIndex(2);
pkt->setIface("eth0");
}
Pkt4Ptr PktCaptures::captureRelayedDiscover() {
/* This is packet 1 from capture
dhcp-val/pcap/docsis-*-CG3000DCR-Registration-Filtered.cap
string exported from Wireshark:
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootps (67)
Source port: bootps (67)
Destination port: bootps (67)
Length: 541
Checksum: 0x2181 [validation disabled]
Bootstrap Protocol
Message type: Boot Request (1)
Hardware type: Ethernet
Hardware address length: 6
Hops: 1
Transaction ID: 0x5d05478d
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 0.0.0.0 (0.0.0.0)
Relay agent IP address: 10.254.226.1 (10.254.226.1)
Client MAC address: Netgear_b8:15:14 (20:e5:2a:b8:15:14)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type
Option: (55) Parameter Request List
Option: (60) Vendor class identifier (docsis3.0)
Option: (125) V-I Vendor-specific Information
- suboption 1 (Option Request): requesting option 2
- suboption 5 (Modem Caps): 117 bytes
Option: (43) Vendor-Specific Information (CableLabs)
Option: (61) Client identifier
Option: (57) Maximum DHCP Message Size
Option: (82) Agent Information Option
Option: (255) End */
string hex_string =
"010106015d05478d000000000000000000000000000000000afee20120e52ab8151400"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000638253633501013707"
"0102030407067d3c0a646f63736973332e303a7d7f0000118b7a010102057501010102"
"010303010104010105010106010107010f0801100901030a01010b01180c01010d0200"
"400e0200100f010110040000000211010014010015013f160101170101180104190104"
"1a01041b01201c01021d01081e01201f01102001102101022201012301002401002501"
"01260200ff2701012b59020345434d030b45434d3a45524f55544552040d3242523232"
"39553430303434430504312e3034060856312e33332e30330707322e332e3052320806"
"30303039354209094347333030304443520a074e657467656172fe01083d0fff2ab815"
"140003000120e52ab81514390205dc5219010420000002020620e52ab8151409090000"
"118b0401020300ff";
return (packetFromCapture(hex_string));
}
Pkt4Ptr PktCaptures::captureRelayedDiscover2() {
/* This is packet 5 from capture
dhcp-val/pcap/docsis-*-CG3000DCR-Registration-Filtered.cap
string exported from Wireshark:
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootps (67)
Bootstrap Protocol
Message type: Boot Request (1)
Hardware type: Ethernet (0x01)
Hardware address length: 6
Hops: 1
Transaction ID: 0x5d05478f
Seconds elapsed: 5
Bootp flags: 0x0000 (Unicast)
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 0.0.0.0 (0.0.0.0)
Relay agent IP address: 10.254.226.1 (10.254.226.1)
Client MAC address: Netgear_b8:15:15 (20:e5:2a:b8:15:15)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type
Option: (55) Parameter Request List
Option: (43) Vendor-Specific Information
Option: (60) Vendor class identifier (eRouter1.0)
Option: (15) Domain Name
Option: (61) Client identifier
Option: (57) Maximum DHCP Message Size
Option: (82) Agent Information Option
Option: (255) End */
string hex_string =
"010106015d05478f000500000000000000000000000000000afee20120e52ab8151500"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000063825363350101370e"
"480102030406070c0f171a36337a2b63020745524f55544552030b45434d3a45524f55"
"544552040d324252323239553430303434430504312e3034060856312e33332e303307"
"07322e332e305232080630303039354209094347333030304443520a074e6574676561"
"720f0745524f555445523c0a65526f75746572312e300f14687364312e70612e636f6d"
"636173742e6e65742e3d0fff2ab815150003000120e52ab81515390205dc5219010420"
"000002020620e52ab8151409090000118b0401020300ff";
return (packetFromCapture(hex_string));
}
Pkt4Ptr PktCaptures::captureBadRelayedDiscover() {
/* Modified packet 1 with a bad RAI.
Bootstrap Protocol
Message type: Boot Request (1)
Hardware type: Ethernet
Hardware address length: 6
Hops: 1
Transaction ID: 0x5d05478d
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 0.0.0.0 (0.0.0.0)
Relay agent IP address: 10.254.226.1 (10.254.226.1)
Client MAC address: Netgear_b8:15:14 (20:e5:2a:b8:15:14)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type
Option: (55) Parameter Request List
Option: (60) Vendor class identifier (docsis3.0)
Option: (125) V-I Vendor-specific Information
- suboption 1 (Option Request): requesting option 2
- suboption 5 (Modem Caps): 117 bytes
Option: (43) Vendor-Specific Information (CableLabs)
Option: (61) Client identifier
Option: (57) Maximum DHCP Message Size
Option: (82) Agent Information Option */
string hex_string =
"010106015d05478d000000000000000000000000000000000afee20120e52ab8151400"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000638253633501013707"
"0102030407067d3c0a646f63736973332e303a7d7f0000118b7a010102057501010102"
"010303010104010105010106010107010f0801100901030a01010b01180c01010d0200"
"400e0200100f010110040000000211010014010015013f160101170101180104190104"
"1a01041b01201c01021d01081e01201f01102001102101022201012301002401002501"
"01260200ff2701012b59020345434d030b45434d3a45524f55544552040d3242523232"
"39553430303434430504312e3034060856312e33332e30330707322e332e3052320806"
"30303039354209094347333030304443520a074e657467656172fe01083d0fff2ab815"
"140003000120e52ab81514390205dc52205141000102030405060708090a0b0c0d0e0f"
"101112131415161718191a1b1c1d";
return (packetFromCapture(hex_string));
}
Pkt4Ptr PktCaptures::discoverWithValidVIVSO() {
/* DISCOVER that contains a valid VIVSO option 125
User Datagram Protocol, Src Port: 67, Dst Port: 67
Bootstrap Protocol (Discover)
Message type: Boot Request (1)
Hardware type: Ethernet (0x01)
Hardware address length: 6
Hops: 1
Transaction ID: 0x2d5d43cb
Seconds elapsed: 0
Bootp flags: 0x8000, Broadcast flag (Broadcast)
Client IP address: 0.0.0.0
Your (client) IP address: 0.0.0.0
Next server IP address: 0.0.0.0
Relay agent IP address: 10.206.80.1
Client MAC address: ArrisGro_5e:f7:af (78:96:84:5e:f7:af)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type (Discover)
Option: (55) Parameter Request List
Option: (60) Vendor class identifier
Option: (125) V-I Vendor-specific Information
Option: (43) Vendor-Specific Information (CableLabs)
Option: (61) Client identifier
Option: (57) Maximum DHCP Message Size
Option: (82) Agent Information Option
Option: (255) End
*/
string hex_string =
"010106012d5d43cb000080000000000000000000000000000ace50017896845ef7af0"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000063825363350"
"10137070102030407067d3c0a646f63736973332e303a7d850000118b80010102057b"
"01010102010303010104010105010106010107010f0801100901030a01010b01180c0"
"1010d0201000e0201000f010110040000000211010113010114010015013f16010117"
"01011801041901041a01041b01201c01021d01081e01201f011020011021010222010"
"1230100240100250101260200ff2701012801d82b7c020345434d030b45434d3a4552"
"4f5554455208030020400418333936373739343234343335353037373031303134303"
"035050131061e534247365838322d382e362e302e302d47412d30312d3937312d4e4f"
"5348070432343030090a534247363738322d41430a144d6f746f726f6c6120436f727"
"06f726174696f6e3d0fff845ef7af000300017896845ef7af390205dc521b01048005"
"03f802067896845ef7af090b0000118b06010401020300ff";
return (packetFromCapture(hex_string));
}
Pkt4Ptr PktCaptures::discoverWithTruncatedVIVSO() {
/* DISCOVER that contains VIVSO option 125 with an INVALID length of 01
User Datagram Protocol, Src Port: 67, Dst Port: 67
Bootstrap Protocol (Discover)
Message type: Boot Request (1)
Hardware type: Ethernet (0x01)
Hardware address length: 6
Hops: 1
Transaction ID: 0x2d5d43cb
Seconds elapsed: 0
Bootp flags: 0x8000, Broadcast flag (Broadcast)
Client IP address: 0.0.0.0
Your (client) IP address: 0.0.0.0
Next server IP address: 0.0.0.0
Relay agent IP address: 10.206.80.1
Client MAC address: ArrisGro_5e:f7:af (78:96:84:5e:f7:af)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type (Discover)
Option: (55) Parameter Request List
Option: (60) Vendor class identifier
Option: (125) V-I Vendor-specific Information
Option: (43) Vendor-Specific Information (CableLabs)
Option: (61) Client identifier
Option: (57) Maximum DHCP Message Size
Option: (82) Agent Information Option
Option: (255) End
*/
string hex_string =
"010106012d5d43cb000080000000000000000000000000000ace50017896845ef7af0"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000000000000000"
"000000000000000000000000000000000000000000000000000000000063825363350"
"10137070102030407067d3c0a646f63736973332e303a7d010000118b80010102057b"
"01010102010303010104010105010106010107010f0801100901030a01010b01180c0"
"1010d0201000e0201000f010110040000000211010113010114010015013f16010117"
"01011801041901041a01041b01201c01021d01081e01201f011020011021010222010"
"1230100240100250101260200ff2701012801d82b7c020345434d030b45434d3a4552"
"4f5554455208030020400418333936373739343234343335353037373031303134303"
"035050131061e534247365838322d382e362e302e302d47412d30312d3937312d4e4f"
"5348070432343030090a534247363738322d41430a144d6f746f726f6c6120436f727"
"06f726174696f6e3d0fff845ef7af000300017896845ef7af390205dc521b01048005"
"03f802067896845ef7af090b0000118b06010401020300ff";
return (packetFromCapture(hex_string));
}
Pkt4Ptr PktCaptures::discoverGenexis() {
/* Bootstrap Protocol (Discover)
Message type: Boot Request (1)
Hardware type: Ethernet (0x01)
Hardware address length: 6
Hops: 0
Transaction ID: 0x946a5b5a
Seconds elapsed: 0
Bootp flags: 0x8000, Broadcast flag (Broadcast)
Client IP address: 0.0.0.0
Your (client) IP address: 0.0.0.0
Next server IP address: 0.0.0.0
Relay agent IP address: 0.0.0.0
Client MAC address: GenexisB_6a:1a:93 (00:0f:94:6a:1a:93)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type (Discover)
Option: (60) Vendor class identifier (HMC1000.v1.3.0-R,Element-P1090,genexis.eu)
Option: (51) IP Address Lease Time
Option: (55) Parameter Request List
Option: (255) End
Padding: 000000000000000000000000000000000000000000000000... */
string hex_string =
"01010600946a5b5a0000800000000000000000000000000000000000000f946a1a9300"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000638253633501013c29"
"484d43313030302e76312e332e302d522c456c656d656e742d50313039302c67656e65"
"7869732e65753304ffffffff37040103067dff00000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000";
return (packetFromCapture(hex_string));
}
}; // end of isc::dhcp::test namespace
}; // end of isc::dhcp namespace
}; // end of isc namespace
|
