1
2#------------------------------------------------------------------------------
3# $File: sniffer,v 1.18 2011/08/08 08:49:27 christos Exp $
4# sniffer: file(1) magic for packet capture files
5#
6# From: guy@alum.mit.edu (Guy Harris)
7#
8
9#
10# Microsoft Network Monitor 1.x capture files.
11#
120 string RTSS NetMon capture file
13>5 byte x - version %d
14>4 byte x \b.%d
15>6 leshort 0 (Unknown)
16>6 leshort 1 (Ethernet)
17>6 leshort 2 (Token Ring)
18>6 leshort 3 (FDDI)
19>6 leshort 4 (ATM)
20
21#
22# Microsoft Network Monitor 2.x capture files.
23#
240 string GMBU NetMon capture file
25>5 byte x - version %d
26>4 byte x \b.%d
27>6 leshort 0 (Unknown)
28>6 leshort 1 (Ethernet)
29>6 leshort 2 (Token Ring)
30>6 leshort 3 (FDDI)
31>6 leshort 4 (ATM)
32
33#
34# Network General Sniffer capture files.
35# Sorry, make that "Network Associates Sniffer capture files."
36# Sorry, make that "Network General old DOS Sniffer capture files."
37#
380 string TRSNIFF\ data\ \ \ \ \032 Sniffer capture file
39>33 byte 2 (compressed)
40>23 leshort x - version %d
41>25 leshort x \b.%d
42>32 byte 0 (Token Ring)
43>32 byte 1 (Ethernet)
44>32 byte 2 (ARCNET)
45>32 byte 3 (StarLAN)
46>32 byte 4 (PC Network broadband)
47>32 byte 5 (LocalTalk)
48>32 byte 6 (Znet)
49>32 byte 7 (Internetwork Analyzer)
50>32 byte 9 (FDDI)
51>32 byte 10 (ATM)
52
53#
54# Cinco Networks NetXRay capture files.
55# Sorry, make that "Network General Sniffer Basic capture files."
56# Sorry, make that "Network Associates Sniffer Basic capture files."
57# Sorry, make that "Network Associates Sniffer Basic, and Windows
58# Sniffer Pro", capture files."
59# Sorry, make that "Network General Sniffer capture files."
60#
610 string XCP\0 NetXRay capture file
62>4 string >\0 - version %s
63>44 leshort 0 (Ethernet)
64>44 leshort 1 (Token Ring)
65>44 leshort 2 (FDDI)
66>44 leshort 3 (WAN)
67>44 leshort 8 (ATM)
68>44 leshort 9 (802.11)
69
70#
71# "libpcap" capture files.
72# (We call them "tcpdump capture file(s)" for now, as "tcpdump" is
73# the main program that uses that format, but there are other programs
74# that use "libpcap", or that use the same capture file format.)
75#
760 ubelong 0xa1b2c3d4 tcpdump capture file (big-endian)
77!:mime application/vnd.tcpdump.pcap
78>4 beshort x - version %d
79>6 beshort x \b.%d
80>20 belong 0 (No link-layer encapsulation
81>20 belong 1 (Ethernet
82>20 belong 2 (3Mb Ethernet
83>20 belong 3 (AX.25
84>20 belong 4 (ProNET
85>20 belong 5 (CHAOS
86>20 belong 6 (Token Ring
87>20 belong 7 (BSD ARCNET
88>20 belong 8 (SLIP
89>20 belong 9 (PPP
90>20 belong 10 (FDDI
91>20 belong 11 (RFC 1483 ATM
92>20 belong 12 (raw IP
93>20 belong 13 (BSD/OS SLIP
94>20 belong 14 (BSD/OS PPP
95>20 belong 19 (Linux ATM Classical IP
96>20 belong 50 (PPP or Cisco HDLC
97>20 belong 51 (PPP-over-Ethernet
98>20 belong 99 (Symantec Enterprise Firewall
99>20 belong 100 (RFC 1483 ATM
100>20 belong 101 (raw IP
101>20 belong 102 (BSD/OS SLIP
102>20 belong 103 (BSD/OS PPP
103>20 belong 104 (BSD/OS Cisco HDLC
104>20 belong 105 (802.11
105>20 belong 106 (Linux Classical IP over ATM
106>20 belong 107 (Frame Relay
107>20 belong 108 (OpenBSD loopback
108>20 belong 109 (OpenBSD IPsec encrypted
109>20 belong 112 (Cisco HDLC
110>20 belong 113 (Linux "cooked"
111>20 belong 114 (LocalTalk
112>20 belong 117 (OpenBSD PFLOG
113>20 belong 119 (802.11 with Prism header
114>20 belong 122 (RFC 2625 IP over Fibre Channel
115>20 belong 123 (SunATM
116>20 belong 127 (802.11 with radiotap header
117>20 belong 129 (Linux ARCNET
118>20 belong 138 (Apple IP over IEEE 1394
119>20 belong 140 (MTP2
120>20 belong 141 (MTP3
121>20 belong 143 (DOCSIS
122>20 belong 144 (IrDA
123>20 belong 147 (Private use 0
124>20 belong 148 (Private use 1
125>20 belong 149 (Private use 2
126>20 belong 150 (Private use 3
127>20 belong 151 (Private use 4
128>20 belong 152 (Private use 5
129>20 belong 153 (Private use 6
130>20 belong 154 (Private use 7
131>20 belong 155 (Private use 8
132>20 belong 156 (Private use 9
133>20 belong 157 (Private use 10
134>20 belong 158 (Private use 11
135>20 belong 159 (Private use 12
136>20 belong 160 (Private use 13
137>20 belong 161 (Private use 14
138>20 belong 162 (Private use 15
139>20 belong 163 (802.11 with AVS header
140>16 belong x \b, capture length %d)
1410 ulelong 0xa1b2c3d4 tcpdump capture file (little-endian)
142!:mime application/vnd.tcpdump.pcap
143>4 leshort x - version %d
144>6 leshort x \b.%d
145>20 lelong 0 (No link-layer encapsulation
146>20 lelong 1 (Ethernet
147>20 lelong 2 (3Mb Ethernet
148>20 lelong 3 (AX.25
149>20 lelong 4 (ProNET
150>20 lelong 5 (CHAOS
151>20 lelong 6 (Token Ring
152>20 lelong 7 (ARCNET
153>20 lelong 8 (SLIP
154>20 lelong 9 (PPP
155>20 lelong 10 (FDDI
156>20 lelong 11 (RFC 1483 ATM
157>20 lelong 12 (raw IP
158>20 lelong 13 (BSD/OS SLIP
159>20 lelong 14 (BSD/OS PPP
160>20 lelong 19 (Linux ATM Classical IP
161>20 lelong 50 (PPP or Cisco HDLC
162>20 lelong 51 (PPP-over-Ethernet
163>20 lelong 99 (Symantec Enterprise Firewall
164>20 lelong 100 (RFC 1483 ATM
165>20 lelong 101 (raw IP
166>20 lelong 102 (BSD/OS SLIP
167>20 lelong 103 (BSD/OS PPP
168>20 lelong 104 (BSD/OS Cisco HDLC
169>20 lelong 105 (802.11
170>20 lelong 106 (Linux Classical IP over ATM
171>20 lelong 107 (Frame Relay
172>20 lelong 108 (OpenBSD loopback
173>20 lelong 109 (OpenBSD IPsec encrypted
174>20 lelong 112 (Cisco HDLC
175>20 lelong 113 (Linux "cooked"
176>20 lelong 114 (LocalTalk
177>20 lelong 117 (OpenBSD PFLOG
178>20 lelong 119 (802.11 with Prism header
179>20 lelong 122 (RFC 2625 IP over Fibre Channel
180>20 lelong 123 (SunATM
181>20 lelong 127 (802.11 with radiotap header
182>20 lelong 129 (Linux ARCNET
183>20 lelong 138 (Apple IP over IEEE 1394
184>20 lelong 140 (MTP2
185>20 lelong 141 (MTP3
186>20 lelong 143 (DOCSIS
187>20 lelong 144 (IrDA
188>20 lelong 147 (Private use 0
189>20 lelong 148 (Private use 1
190>20 lelong 149 (Private use 2
191>20 lelong 150 (Private use 3
192>20 lelong 151 (Private use 4
193>20 lelong 152 (Private use 5
194>20 lelong 153 (Private use 6
195>20 lelong 154 (Private use 7
196>20 lelong 155 (Private use 8
197>20 lelong 156 (Private use 9
198>20 lelong 157 (Private use 10
199>20 lelong 158 (Private use 11
200>20 lelong 159 (Private use 12
201>20 lelong 160 (Private use 13
202>20 lelong 161 (Private use 14
203>20 lelong 162 (Private use 15
204>20 lelong 163 (802.11 with AVS header
205>16 lelong x \b, capture length %d)
206
207#
208# "libpcap"-with-Alexey-Kuznetsov's-patches capture files.
209# (We call them "tcpdump capture file(s)" for now, as "tcpdump" is
210# the main program that uses that format, but there are other programs
211# that use "libpcap", or that use the same capture file format.)
212#
2130 ubelong 0xa1b2cd34 extended tcpdump capture file (big-endian)
214>4 beshort x - version %d
215>6 beshort x \b.%d
216>20 belong 0 (No link-layer encapsulation
217>20 belong 1 (Ethernet
218>20 belong 2 (3Mb Ethernet
219>20 belong 3 (AX.25
220>20 belong 4 (ProNET
221>20 belong 5 (CHAOS
222>20 belong 6 (Token Ring
223>20 belong 7 (ARCNET
224>20 belong 8 (SLIP
225>20 belong 9 (PPP
226>20 belong 10 (FDDI
227>20 belong 11 (RFC 1483 ATM
228>20 belong 12 (raw IP
229>20 belong 13 (BSD/OS SLIP
230>20 belong 14 (BSD/OS PPP
231>16 belong x \b, capture length %d)
2320 ulelong 0xa1b2cd34 extended tcpdump capture file (little-endian)
233>4 leshort x - version %d
234>6 leshort x \b.%d
235>20 lelong 0 (No link-layer encapsulation
236>20 lelong 1 (Ethernet
237>20 lelong 2 (3Mb Ethernet
238>20 lelong 3 (AX.25
239>20 lelong 4 (ProNET
240>20 lelong 5 (CHAOS
241>20 lelong 6 (Token Ring
242>20 lelong 7 (ARCNET
243>20 lelong 8 (SLIP
244>20 lelong 9 (PPP
245>20 lelong 10 (FDDI
246>20 lelong 11 (RFC 1483 ATM
247>20 lelong 12 (raw IP
248>20 lelong 13 (BSD/OS SLIP
249>20 lelong 14 (BSD/OS PPP
250>16 lelong x \b, capture length %d)
251
252#
253# "pcap-ng" capture files.
254# http://www.winpcap.org/ntar/draft/PCAP-DumpFileFormat.html
255# Pcap-ng files can contain multiple sections. Printing the endianness,
256# snaplen, or other information from the first SHB may be misleading.
257#
2580 ubelong 0x0a0d0d0a
259>8 ubelong 0x1a2b3c4d pcap-ng capture file
260>>12 beshort x - version %d
261>>14 beshort x \b.%d
2620 ulelong 0x0a0d0d0a
263>8 ulelong 0x1a2b3c4d pcap-ng capture file
264>>12 leshort x - version %d
265>>14 leshort x \b.%d
266
267#
268# AIX "iptrace" capture files.
269#
2700 string iptrace\ 1.0 "iptrace" capture file
2710 string iptrace\ 2.0 "iptrace" capture file
272
273#
274# Novell LANalyzer capture files.
275#
2760 leshort 0x1001 LANalyzer capture file
2770 leshort 0x1007 LANalyzer capture file
278
279#
280# HP-UX "nettl" capture files.
281#
2820 string \x54\x52\x00\x64\x00 "nettl" capture file
283
284#
285# RADCOM WAN/LAN Analyzer capture files.
286#
2870 string \x42\xd2\x00\x34\x12\x66\x22\x88 RADCOM WAN/LAN Analyzer capture file
288
289#
290# NetStumbler log files. Not really packets, per se, but about as
291# close as you can get. These are log files from NetStumbler, a
292# Windows program, that scans for 802.11b networks.
293#
2940 string NetS NetStumbler log file
295>8 lelong x \b, %d stations found
296
297#
298# EtherPeek/AiroPeek "version 9" capture files.
299#
3000 string \177ver EtherPeek/AiroPeek capture file
301
302#
303# Visual Networks traffic capture files.
304#
3050 string \x05VNF Visual Networks traffic capture file
306
307#
308# Network Instruments Observer capture files.
309#
3100 string ObserverPktBuffe Network Instruments Observer capture file
311
312#
313# Files from Accellent Group's 5View products.
314#
3150 string \xaa\xaa\xaa\xaa 5View capture file