2 * Code common to libpcap and pcap-NG file formats
7 * Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
9 * File format support for pcap-ng file format
10 * Copyright (c) 2007 by Ulf Lamping <ulf.lamping@web.de>
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
33 #include "file_wrappers.h"
36 #include "pcap-encap.h"
37 #include "pcap-common.h"
40 * Map link-layer header types (LINKTYPE_ values) to Wiretap encapsulations.
42 * Either LBL NRG wasn't an adequate central registry (e.g., because of
43 * the slow rate of releases from them), or nobody bothered using them
44 * as a central registry, as many different groups have patched libpcap
45 * (and BPF, on the BSDs) to add new encapsulation types, and have ended
46 * up using the same DLT_ values for different encapsulation types.
48 * The Tcpdump Group now maintains the list of link-layer header types;
49 * they introduced a separate namespace of LINKTYPE_ values for the
50 * values to be used in capture files, and have libpcap map between
51 * those values in capture file headers and the DLT_ values that the
52 * pcap_datalink() and pcap_open_dead() APIs use. See
53 * http://www.tcpdump.org/linktypes.html for a list of LINKTYPE_ values.
55 * In most cases, the corresponding LINKTYPE_ and DLT_ values are the
56 * same. In the cases where the same link-layer header type was given
57 * different values in different OSes, a new LINKTYPE_ value was defined,
58 * different from all of the existing DLT_ values.
60 * This table maps LINKTYPE_ values to the corresponding Wiretap
61 * encapsulation. For cases where multiple DLT_ values were in use,
62 * it also checks what <pcap.h> defineds to determine how to interpret
63 * them, so that if a file was written by a version of libpcap prior
64 * to the introduction of the LINKTYPE_ values, and has a DLT_ value
65 * from the OS on which it was written rather than a LINKTYPE_ value
66 * as its linktype value in the file header, we map the numerical
67 * DLT_ value, as interpreted by the libpcap with which we're building
68 * Wireshark/Wiretap interprets them (which, if it doesn't support
69 * them at all, means we don't support them either - any capture files
70 * using them are foreign, and we don't hazard a guess as to which
71 * platform they came from; we could, I guess, choose the most likely
72 * platform), to the corresponding Wiretap encapsulation.
74 * Note: if you need a new encapsulation type for libpcap files, do
75 * *N*O*T* use *ANY* of the values listed here! I.e., do *NOT*
76 * add a new encapsulation type by changing an existing entry;
77 * leave the existing entries alone.
79 * Instead, send mail to tcpdump-workers@lists.tcpdump.org, asking for
80 * a new LINKTYPE_/DLT_ value, and specifying the purpose of the new
81 * value. When you get the new LINKTYPE_/DLT_ value, use that numerical
82 * value in the "linktype_value" field of "pcap_to_wtap_map[]".
88 } pcap_to_wtap_map[] = {
90 * These are the values that are almost certainly the same
91 * in all libpcaps (I've yet to find one where the values
92 * in question are used for some purpose other than the
93 * one below, but...), and thus assigned as LINKTYPE_ values,
94 * and that Wiretap and Wireshark currently support.
96 { 0, WTAP_ENCAP_NULL }, /* null encapsulation */
97 { 1, WTAP_ENCAP_ETHERNET },
98 { 3, WTAP_ENCAP_AX25 },
99 { 6, WTAP_ENCAP_TOKEN_RING }, /* IEEE 802 Networks - assume token ring */
100 { 7, WTAP_ENCAP_ARCNET },
101 { 8, WTAP_ENCAP_SLIP },
102 { 9, WTAP_ENCAP_PPP },
103 #ifdef BIT_SWAPPED_MAC_ADDRS
104 { 10, WTAP_ENCAP_FDDI_BITSWAPPED },
106 { 10, WTAP_ENCAP_FDDI },
109 { 32, WTAP_ENCAP_REDBACK },
112 * 50 is DLT_PPP_SERIAL in NetBSD; it appears that DLT_PPP
113 * on BSD (at least according to standard tcpdump) has, as
114 * the first octet, an indication of whether the packet was
115 * transmitted or received (rather than having the standard
116 * PPP address value of 0xff), but that DLT_PPP_SERIAL puts
117 * a real live PPP header there, or perhaps a Cisco PPP header
118 * as per section 4.3.1 of RFC 1547 (implementations of this
119 * exist in various BSDs in "sys/net/if_spppsubr.c", and
120 * I think also exist either in standard Linux or in
121 * various Linux patches; the implementations show how to handle
122 * Cisco keepalive packets).
124 * However, I don't see any obvious place in FreeBSD "if_ppp.c"
125 * where anything other than the standard PPP header would be
126 * passed up. I see some stuff that sets the first octet
127 * to 0 for incoming and 1 for outgoing packets before applying
128 * a BPF filter to see whether to drop packets whose protocol
129 * field has the 0x8000 bit set, i.e. network control protocols -
130 * those are handed up to userland - but that code puts the
131 * address field back before passing the packet up.
133 * I also don't see anything immediately obvious that munges
134 * the address field for sync PPP, either.
136 * Wireshark currently assumes that if the first octet of a
137 * PPP frame is 0xFF, it's the address field and is followed
138 * by a control field and a 2-byte protocol, otherwise the
139 * address and control fields are absent and the frame begins
140 * with a protocol field. If we ever see a BSD/OS PPP
141 * capture, we'll have to handle it differently, and we may
142 * have to handle standard BSD captures differently if, in fact,
143 * they don't have 0xff 0x03 as the first two bytes - but, as per
144 * the two paragraphs preceding this, it's not clear that
145 * the address field *is* munged into an incoming/outgoing
146 * field when the packet is handed to the BPF device.
148 * For now, we just map DLT_PPP_SERIAL to WTAP_ENCAP_PPP, as
149 * we treat WTAP_ENCAP_PPP packets as if those beginning with
150 * 0xff have the standard RFC 1662 "PPP in HDLC-like Framing"
151 * 0xff 0x03 address/control header, and DLT_PPP_SERIAL frames
152 * appear to contain that unless they're Cisco frames (if we
153 * ever see a capture with them, we'd need to implement the
154 * RFC 1547 stuff, and the keepalive protocol stuff).
156 * We may have to distinguish between "PPP where if it doesn't
157 * begin with 0xff there's no HDLC encapsulation and the frame
158 * begins with the protocol field" (which is how we handle
159 * WTAP_ENCAP_PPP now) and "PPP where there's either HDLC
160 * encapsulation or Cisco PPP" (which is what DLT_PPP_SERIAL
163 * XXX - NetBSD has DLT_HDLC, which appears to be used for
164 * Cisco HDLC. Ideally, they should use DLT_PPP_SERIAL
165 * only for real live HDLC-encapsulated PPP, not for Cisco
168 { 50, WTAP_ENCAP_PPP },
171 * Used by NetBSD and OpenBSD pppoe(4).
173 { 51, WTAP_ENCAP_PPP_ETHER },
176 * Apparently used by the Axent Raptor firewall (now Symantec
177 * Enterprise Firewall).
178 * Thanks, Axent, for not reserving that type with tcpdump.org
179 * and not telling anybody about it.
181 { 99, WTAP_ENCAP_SYMANTEC },
184 * These are the values that libpcap 0.5 and later use in
185 * capture file headers, in an attempt to work around the
186 * confusion decried above, and that Wiretap and Wireshark
187 * currently support. I.e., they're the LINKTYPE_ values
188 * for RFC 1483 ATM and "raw IP", respectively, not the
189 * DLT_ values for them on all platforms.
191 { 100, WTAP_ENCAP_ATM_RFC1483 },
192 { 101, WTAP_ENCAP_RAW_IP },
195 * More values used by libpcap 0.5 as DLT_ values and used by the
196 * current CVS version of libpcap in capture file headers.
197 * They are not yet handled in Wireshark.
198 * If we get a capture that contains them, we'll implement them.
200 { 102, WTAP_ENCAP_SLIP_BSDOS },
201 { 103, WTAP_ENCAP_PPP_BSDOS },
205 * These ones are handled in Wireshark, though.
207 { 104, WTAP_ENCAP_CHDLC }, /* Cisco HDLC */
208 { 105, WTAP_ENCAP_IEEE_802_11 }, /* IEEE 802.11 */
209 { 106, WTAP_ENCAP_LINUX_ATM_CLIP },
210 { 107, WTAP_ENCAP_FRELAY }, /* Frame Relay */
211 { 108, WTAP_ENCAP_NULL }, /* OpenBSD loopback */
212 { 109, WTAP_ENCAP_ENC }, /* OpenBSD IPSEC enc */
214 { 110, WTAP_ENCAP_LANE_802_3 },/* ATM LANE 802.3 */
215 { 111, WTAP_ENCAP_HIPPI }, /* NetBSD HIPPI */
217 { 112, WTAP_ENCAP_CHDLC }, /* NetBSD HDLC framing */
220 * Linux "cooked mode" captures, used by the current CVS version
223 * it could be a packet in Cisco's ERSPAN encapsulation which uses
224 * this number as well (why can't people stick to protocols when it
225 * comes to allocating/using DLT types).
227 { 113, WTAP_ENCAP_SLL }, /* Linux cooked capture */
229 { 114, WTAP_ENCAP_LOCALTALK }, /* Localtalk */
232 * The tcpdump.org version of libpcap uses 117, rather than 17,
233 * for OpenBSD packet filter logging, so as to avoid conflicting
234 * with DLT_LANE8023 in SuSE 6.3 libpcap.
236 { 117, WTAP_ENCAP_PFLOG },
238 { 118, WTAP_ENCAP_CISCO_IOS },
239 { 119, WTAP_ENCAP_IEEE_802_11_PRISM }, /* 802.11 plus Prism monitor mode radio header */
240 { 121, WTAP_ENCAP_HHDLC }, /* HiPath HDLC */
241 { 122, WTAP_ENCAP_IP_OVER_FC }, /* RFC 2625 IP-over-FC */
242 { 123, WTAP_ENCAP_ATM_PDUS }, /* SunATM */
243 { 127, WTAP_ENCAP_IEEE_802_11_RADIOTAP }, /* 802.11 plus radiotap radio header */
244 { 128, WTAP_ENCAP_TZSP }, /* Tazmen Sniffer Protocol */
245 { 129, WTAP_ENCAP_ARCNET_LINUX },
246 { 130, WTAP_ENCAP_JUNIPER_MLPPP }, /* Juniper MLPPP on ML-, LS-, AS- PICs */
247 { 131, WTAP_ENCAP_JUNIPER_MLFR }, /* Juniper MLFR (FRF.15) on ML-, LS-, AS- PICs */
248 { 133, WTAP_ENCAP_JUNIPER_GGSN},
250 * Values 132 and 134 not listed here are reserved for use
251 * in Juniper hardware.
253 { 135, WTAP_ENCAP_JUNIPER_ATM2 }, /* various encapsulations captured on the ATM2 PIC */
254 { 136, WTAP_ENCAP_JUNIPER_SVCS }, /* various encapsulations captured on the services PIC */
255 { 137, WTAP_ENCAP_JUNIPER_ATM1 }, /* various encapsulations captured on the ATM1 PIC */
257 { 138, WTAP_ENCAP_APPLE_IP_OVER_IEEE1394 },
258 /* Apple IP-over-IEEE 1394 */
260 { 139, WTAP_ENCAP_MTP2_WITH_PHDR },
261 { 140, WTAP_ENCAP_MTP2 },
262 { 141, WTAP_ENCAP_MTP3 },
263 { 142, WTAP_ENCAP_SCCP },
264 { 143, WTAP_ENCAP_DOCSIS },
265 { 144, WTAP_ENCAP_IRDA }, /* IrDA capture */
267 /* Reserved for private use. */
268 { 147, WTAP_ENCAP_USER0 },
269 { 148, WTAP_ENCAP_USER1 },
270 { 149, WTAP_ENCAP_USER2 },
271 { 150, WTAP_ENCAP_USER3 },
272 { 151, WTAP_ENCAP_USER4 },
273 { 152, WTAP_ENCAP_USER5 },
274 { 153, WTAP_ENCAP_USER6 },
275 { 154, WTAP_ENCAP_USER7 },
276 { 155, WTAP_ENCAP_USER8 },
277 { 156, WTAP_ENCAP_USER9 },
278 { 157, WTAP_ENCAP_USER10 },
279 { 158, WTAP_ENCAP_USER11 },
280 { 159, WTAP_ENCAP_USER12 },
281 { 160, WTAP_ENCAP_USER13 },
282 { 161, WTAP_ENCAP_USER14 },
283 { 162, WTAP_ENCAP_USER15 },
285 { 163, WTAP_ENCAP_IEEE_802_11_AVS }, /* 802.11 plus AVS radio header */
288 * 164 is reserved for Juniper-private chassis-internal
289 * meta-information such as QoS profiles, etc..
292 { 165, WTAP_ENCAP_BACNET_MS_TP },
295 * 166 is reserved for a PPP variant in which the first byte
296 * of the 0xff03 header, the 0xff, is replaced by a direction
297 * byte. I don't know whether any captures look like that,
298 * but it is used for some Linux IP filtering (ipfilter?).
301 /* Ethernet PPPoE frames captured on a service PIC */
302 { 167, WTAP_ENCAP_JUNIPER_PPPOE },
305 * 168 is reserved for more Juniper private-chassis-
306 * internal meta-information.
309 { 169, WTAP_ENCAP_GPRS_LLC },
312 * 170 and 171 are reserved for ITU-T G.7041/Y.1303 Generic
316 /* Registered by Gcom, Inc. */
317 { 172, WTAP_ENCAP_GCOM_TIE1 },
318 { 173, WTAP_ENCAP_GCOM_SERIAL },
320 { 177, WTAP_ENCAP_LINUX_LAPD },
322 /* Ethernet frames prepended with meta-information */
323 { 178, WTAP_ENCAP_JUNIPER_ETHER },
324 /* PPP frames prepended with meta-information */
325 { 179, WTAP_ENCAP_JUNIPER_PPP },
326 /* Frame-Relay frames prepended with meta-information */
327 { 180, WTAP_ENCAP_JUNIPER_FRELAY },
328 /* C-HDLC frames prepended with meta-information */
329 { 181, WTAP_ENCAP_JUNIPER_CHDLC },
330 /* VOIP Frames prepended with meta-information */
331 { 183, WTAP_ENCAP_JUNIPER_VP },
332 /* raw USB packets */
333 { 186, WTAP_ENCAP_USB },
334 /* Bluetooth HCI UART transport (part H:4) frames, like hcidump */
335 { 187, WTAP_ENCAP_BLUETOOTH_H4 },
336 /* IEEE 802.16 MAC Common Part Sublayer */
337 { 188, WTAP_ENCAP_IEEE802_16_MAC_CPS },
338 /* USB packets with Linux-specified header */
339 { 189, WTAP_ENCAP_USB_LINUX },
341 { 190, WTAP_ENCAP_CAN20B },
342 /* Per-Packet Information header */
343 { 192, WTAP_ENCAP_PPI },
344 /* IEEE 802.15.4 Wireless PAN */
345 { 195, WTAP_ENCAP_IEEE802_15_4 },
346 /* SITA File Encapsulation */
347 { 196, WTAP_ENCAP_SITA },
348 /* Endace Record File Encapsulation */
349 { 197, WTAP_ENCAP_ERF },
351 { 199, WTAP_ENCAP_IPMB },
352 /* Bluetooth HCI UART transport (part H:4) frames, like hcidump */
353 { 201, WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR },
354 /* AX.25 packet with a 1-byte KISS header */
355 { 202, WTAP_ENCAP_AX25_KISS },
357 { 203, WTAP_ENCAP_LAPD },
358 /* PPP with pseudoheader */
359 { 204, WTAP_ENCAP_PPP_WITH_PHDR },
361 { 209, WTAP_ENCAP_I2C },
363 { 210, WTAP_ENCAP_FLEXRAY },
365 { 211, WTAP_ENCAP_MOST },
367 { 212, WTAP_ENCAP_LIN },
368 /* X2E Xoraya serial frame */
369 { 213, WTAP_ENCAP_X2E_SERIAL },
370 /* X2E Xoraya frame */
371 { 214, WTAP_ENCAP_X2E_XORAYA },
372 /* IEEE 802.15.4 Wireless PAN non-ASK PHY */
373 { 215, WTAP_ENCAP_IEEE802_15_4_NONASK_PHY },
374 /* USB packets with padded Linux-specified header */
375 { 220, WTAP_ENCAP_USB_LINUX_MMAPPED },
376 /* Fibre Channel FC-2 frame */
377 { 224, WTAP_ENCAP_FIBRE_CHANNEL_FC2 },
378 /* Fibre Channel FC-2 frame with Delimiter */
379 { 225, WTAP_ENCAP_FIBRE_CHANNEL_FC2_WITH_FRAME_DELIMS },
381 { 226, WTAP_ENCAP_IPNET },
382 /* SocketCAN frame */
383 { 227, WTAP_ENCAP_SOCKETCAN },
385 { 228, WTAP_ENCAP_RAW_IP4 },
387 { 229, WTAP_ENCAP_RAW_IP6 },
388 /* IEEE 802.15.4 Wireless PAN no fcs */
389 { 230, WTAP_ENCAP_IEEE802_15_4_NOFCS },
391 { 231, WTAP_ENCAP_DBUS },
392 /* DVB-CI (Common Interface) */
393 { 235, WTAP_ENCAP_DVBCI },
395 { 236, WTAP_ENCAP_MUX27010 },
396 /* STANAG 5066 - DTS(Data Transfer Sublayer) PDU */
397 { 237, WTAP_ENCAP_STANAG_5066_D_PDU },
399 { 239, WTAP_ENCAP_NFLOG },
400 /* netANALYZER pseudo-header followed by Ethernet with CRC */
401 { 240, WTAP_ENCAP_NETANALYZER },
402 /* netANALYZER pseudo-header in transparent mode */
403 { 241, WTAP_ENCAP_NETANALYZER_TRANSPARENT },
404 /* IP-over-Infiniband, as specified by RFC 4391 section 6 */
405 { 242, WTAP_ENCAP_IP_OVER_IB },
406 /* ISO/IEC 13818-1 MPEG2-TS packets */
407 { 243, WTAP_ENCAP_MPEG_2_TS },
409 { 245, WTAP_ENCAP_NFC_LLCP },
411 { 248, WTAP_ENCAP_SCTP},
413 { 249, WTAP_ENCAP_USBPCAP},
415 { 250, WTAP_ENCAP_RTAC_SERIAL},
416 /* Bluetooth Low Energy Link Layer */
417 { 251, WTAP_ENCAP_BLUETOOTH_LE_LL},
418 /* Wireshark Upper PDU export */
419 { 252, WTAP_ENCAP_WIRESHARK_UPPER_PDU},
420 /* Netlink Protocol (nlmon devices) */
421 { 253, WTAP_ENCAP_NETLINK },
426 * If you need a new encapsulation type for libpcap files, do
427 * *N*O*T* use *ANY* of the values listed here! I.e., do *NOT*
428 * add a new encapsulation type by changing an existing entry;
429 * leave the existing entries alone.
431 * Instead, send mail to tcpdump-workers@lists.tcpdump.org, asking
432 * for a new DLT_ value, and specifying the purpose of the new value.
433 * When you get the new DLT_ value, use that numerical value in
434 * the "linktype_value" field of "pcap_to_wtap_map[]".
438 * The following are entries for libpcap type values that have
439 * different meanings on different OSes. I.e., these are DLT_
440 * values that are different on different OSes, and that have
441 * a separate LINKTYPE_ value assigned to them.
443 * We put these *after* the entries for the LINKTYPE_ values for
444 * those Wiretap encapsulation types, so that, when writing a
445 * pcap or pcap-ng file, Wireshark writes the LINKTYPE_ value,
446 * not the OS's DLT_ value, as the file's link-layer header type
447 * for pcap or the interface's link-layer header type.
451 * 11 is DLT_ATM_RFC1483 on most platforms; the only libpcaps I've
452 * seen that define anything other than DLT_ATM_RFC1483 as 11 are
453 * the BSD/OS one, which defines DLT_FR as 11, and libpcap 0.5,
454 * which define it as 100, mapping the kernel's value to 100, in
455 * an attempt to hide the different values used on different
458 * If this is a platform where DLT_FR is defined as 11, we
459 * don't handle 11 at all; otherwise, we handle it as
460 * DLT_ATM_RFC1483 (this means we'd misinterpret Frame Relay
461 * captures from BSD/OS if running on platforms other than BSD/OS,
464 * 1) we don't yet support DLT_FR
468 * 2) nothing short of a heuristic would let us interpret
471 #if defined(DLT_FR) && (DLT_FR == 11)
472 { 11, WTAP_ENCAP_FRELAY },
474 { 11, WTAP_ENCAP_ATM_RFC1483 },
478 * 12 is DLT_RAW on most platforms, but it's DLT_C_HDLC on
479 * BSD/OS, and DLT_LOOP on OpenBSD.
481 * We don't yet handle DLT_C_HDLC, but we can handle DLT_LOOP
482 * (it's just like DLT_NULL, only with the AF_ value in network
483 * rather than host byte order - Wireshark figures out the
484 * byte order from the data, so we don't care what byte order
485 * it's in), so if DLT_LOOP is defined as 12, interpret 12
486 * as WTAP_ENCAP_NULL, otherwise, unless DLT_C_HDLC is defined
487 * as 12, interpret it as WTAP_ENCAP_RAW_IP.
489 #if defined(DLT_LOOP) && (DLT_LOOP == 12)
490 { 12, WTAP_ENCAP_NULL },
491 #elif defined(DLT_C_HDLC) && (DLT_C_HDLC == 12)
493 * Put entry for Cisco HDLC here.
494 * XXX - is this just WTAP_ENCAP_CHDLC, i.e. does the frame
495 * start with a 4-byte Cisco HDLC header?
498 { 12, WTAP_ENCAP_RAW_IP },
502 * 13 is DLT_SLIP_BSDOS on FreeBSD and NetBSD, but those OSes
503 * don't actually generate it. I infer that BSD/OS translates
504 * DLT_SLIP from the kernel BPF code to DLT_SLIP_BSDOS in
505 * libpcap, as the BSD/OS link-layer header is different;
506 * however, in BSD/OS, DLT_SLIP_BSDOS is 15.
508 * From this, I infer that there's no point in handling 13
511 * 13 is DLT_ATM_RFC1483 on BSD/OS.
513 * 13 is DLT_ENC in OpenBSD, which is, I suspect, some kind
514 * of decrypted IPsec traffic.
516 * We treat 13 as WTAP_ENCAP_ENC on all systems except those
517 * that define DLT_ATM_RFC1483 as 13 - presumably only
518 * BSD/OS does so - so that, on BSD/OS systems, we still
519 * treate 13 as WTAP_ENCAP_ATM_RFC1483, but, on all other
520 * systems, we can read OpenBSD DLT_ENC captures.
522 #if defined(DLT_ATM_RFC1483) && (DLT_ATM_RFC1483 == 13)
523 { 13, WTAP_ENCAP_ATM_RFC1483 },
525 { 13, WTAP_ENCAP_ENC },
529 * 14 is DLT_PPP_BSDOS on FreeBSD and NetBSD, but those OSes
530 * don't actually generate it. I infer that BSD/OS translates
531 * DLT_PPP from the kernel BPF code to DLT_PPP_BSDOS in
532 * libpcap, as the BSD/OS link-layer header is different;
533 * however, in BSD/OS, DLT_PPP_BSDOS is 16.
535 * From this, I infer that there's no point in handling 14
538 * 14 is DLT_RAW on BSD/OS and OpenBSD.
540 { 14, WTAP_ENCAP_RAW_IP },
545 * DLT_SLIP_BSDOS on BSD/OS;
547 * DLT_HIPPI on NetBSD;
549 * DLT_LANE8023 with Alexey Kuznetzov's patches for
552 * DLT_I4L_RAWIP with the ISDN4Linux patches for libpcap
555 * but we don't currently handle any of those.
561 * DLT_PPP_BSDOS on BSD/OS;
563 * DLT_HDLC on NetBSD (Cisco HDLC);
565 * DLT_CIP with Alexey Kuznetzov's patches for
566 * Linux libpcap - this is WTAP_ENCAP_LINUX_ATM_CLIP;
568 * DLT_I4L_IP with the ISDN4Linux patches for libpcap
571 #if defined(DLT_CIP) && (DLT_CIP == 16)
572 { 16, WTAP_ENCAP_LINUX_ATM_CLIP },
574 #if defined(DLT_HDLC) && (DLT_HDLC == 16)
575 { 16, WTAP_ENCAP_CHDLC },
579 * 17 is DLT_LANE8023 in SuSE 6.3 libpcap; we don't currently
581 * It is also used as the PF (Packet Filter) logging format beginning
582 * with OpenBSD 3.0; we use 17 for PF logs unless DLT_LANE8023 is
583 * defined with the value 17.
585 #if !defined(DLT_LANE8023) || (DLT_LANE8023 != 17)
586 { 17, WTAP_ENCAP_OLD_PFLOG },
590 * 18 is DLT_CIP in SuSE 6.3 libpcap; if it's the same as the
591 * DLT_CIP of 16 that the Alexey Kuznetzov patches for
592 * libpcap/tcpdump define, it's WTAP_ENCAP_LINUX_ATM_CLIP.
593 * I've not found any libpcap that uses it for any other purpose -
594 * hopefully nobody will do so in the future.
596 { 18, WTAP_ENCAP_LINUX_ATM_CLIP },
599 * 19 is DLT_ATM_CLIP in the libpcap/tcpdump patches in the
600 * recent versions I've seen of the Linux ATM distribution;
601 * I've not yet found any libpcap that uses it for any other
602 * purpose - hopefully nobody will do so in the future.
604 { 19, WTAP_ENCAP_LINUX_ATM_CLIP },
609 * If you need a new encapsulation type for libpcap files, do
610 * *N*O*T* use *ANY* of the values listed here! I.e., do *NOT*
611 * add a new encapsulation type by changing an existing entry;
612 * leave the existing entries alone.
614 * Instead, send mail to tcpdump-workers@lists.tcpdump.org, asking
615 * for a new DLT_ value, and specifying the purpose of the new value.
616 * When you get the new DLT_ value, use that numerical value in
617 * the "linktype_value" field of "pcap_to_wtap_map[]".
620 #define NUM_PCAP_ENCAPS (sizeof pcap_to_wtap_map / sizeof pcap_to_wtap_map[0])
623 wtap_pcap_encap_to_wtap_encap(int encap)
627 for (i = 0; i < NUM_PCAP_ENCAPS; i++) {
628 if (pcap_to_wtap_map[i].linktype_value == encap)
629 return pcap_to_wtap_map[i].wtap_encap_value;
631 return WTAP_ENCAP_UNKNOWN;
635 wtap_wtap_encap_to_pcap_encap(int encap)
641 case WTAP_ENCAP_FDDI:
642 case WTAP_ENCAP_FDDI_BITSWAPPED:
644 * Special-case WTAP_ENCAP_FDDI and
645 * WTAP_ENCAP_FDDI_BITSWAPPED; both of them get mapped
646 * to DLT_FDDI (even though that may mean that the bit
647 * order in the FDDI MAC addresses is wrong; so it goes
648 * - libpcap format doesn't record the byte order,
649 * so that's not fixable).
651 * The pcap_to_wtap_map[] table will only have an
652 * entry for one of the above, which is why we have
653 * to special-case them.
655 return 10; /* that's DLT_FDDI */
657 case WTAP_ENCAP_NETTL_FDDI:
659 * This will discard the nettl information, as that's
660 * in the pseudo-header.
662 * XXX - what about Ethernet and Token Ring?
664 return 10; /* that's DLT_FDDI */
666 case WTAP_ENCAP_FRELAY_WITH_PHDR:
668 * This will discard the pseudo-header information.
672 case WTAP_ENCAP_IEEE_802_11_WITH_RADIO:
674 * Map this to DLT_IEEE802_11, for now, even though
675 * that means the radio information will be lost.
676 * We should try to map those values to radiotap
677 * values and write this out as a radiotap file,
683 for (i = 0; i < NUM_PCAP_ENCAPS; i++) {
684 if (pcap_to_wtap_map[i].wtap_encap_value == encap)
685 return pcap_to_wtap_map[i].linktype_value;
691 wtap_encap_requires_phdr(int encap) {
693 (encap == WTAP_ENCAP_ATM_PDUS) ||
694 (encap == WTAP_ENCAP_IRDA) ||
695 (encap == WTAP_ENCAP_MTP2_WITH_PHDR) ||
696 (encap == WTAP_ENCAP_LINUX_LAPD) ||
697 (encap == WTAP_ENCAP_SITA) ||
698 (encap == WTAP_ENCAP_ERF) ||
699 (encap == WTAP_ENCAP_I2C) ||
700 (encap == WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR) ||
701 (encap == WTAP_ENCAP_PPP_WITH_PHDR)
710 * Various pseudo-headers that appear at the beginning of packet data.
712 * We represent them as sets of offsets, as they might not be aligned on
713 * an appropriate structure boundary in the buffer, and as that makes them
714 * independent of the way the compiler might align fields.
718 * The link-layer header on SunATM packets.
720 #define SUNATM_FLAGS 0 /* destination and traffic type - 1 byte */
721 #define SUNATM_VPI 1 /* VPI - 1 byte */
722 #define SUNATM_VCI 2 /* VCI - 2 bytes */
723 #define SUNATM_LEN 4 /* length of the header */
726 * The link-layer header on Nokia IPSO ATM packets.
728 #define NOKIAATM_FLAGS 0 /* destination - 1 byte */
729 #define NOKIAATM_VPI 1 /* VPI - 1 byte */
730 #define NOKIAATM_VCI 2 /* VCI - 2 bytes */
731 #define NOKIAATM_LEN 4 /* length of the header */
734 * The link-layer header on Nokia IPSO packets.
736 #define NOKIA_LEN 4 /* length of the header */
739 * The fake link-layer header of IrDA packets as introduced by Jean Tourrilhes
742 #define IRDA_SLL_PKTTYPE_OFFSET 0 /* packet type - 2 bytes */
743 /* 12 unused bytes */
744 #define IRDA_SLL_PROTOCOL_OFFSET 14 /* protocol, should be ETH_P_LAPD - 2 bytes */
745 #define IRDA_SLL_LEN 16 /* length of the header */
748 * A header containing additional MTP information.
750 #define MTP2_SENT_OFFSET 0 /* 1 byte */
751 #define MTP2_ANNEX_A_USED_OFFSET 1 /* 1 byte */
752 #define MTP2_LINK_NUMBER_OFFSET 2 /* 2 bytes */
753 #define MTP2_HDR_LEN 4 /* length of the header */
756 * A header containing additional SITA WAN information.
758 #define SITA_FLAGS_OFFSET 0 /* 1 byte */
759 #define SITA_SIGNALS_OFFSET 1 /* 1 byte */
760 #define SITA_ERRORS1_OFFSET 2 /* 1 byte */
761 #define SITA_ERRORS2_OFFSET 3 /* 1 byte */
762 #define SITA_PROTO_OFFSET 4 /* 1 byte */
763 #define SITA_HDR_LEN 5 /* length of the header */
766 * The fake link-layer header of LAPD packets.
769 #define ETH_P_LAPD 0x0030
772 #define LAPD_SLL_PKTTYPE_OFFSET 0 /* packet type - 2 bytes */
773 #define LAPD_SLL_HATYPE_OFFSET 2 /* hardware address type - 2 bytes */
774 #define LAPD_SLL_HALEN_OFFSET 4 /* hardware address length - 2 bytes */
775 #define LAPD_SLL_ADDR_OFFSET 6 /* address - 8 bytes */
776 #define LAPD_SLL_PROTOCOL_OFFSET 14 /* protocol, should be ETH_P_LAPD - 2 bytes */
777 #define LAPD_SLL_LEN 16 /* length of the header */
780 * The NFC LLCP per-packet header.
782 #define LLCP_ADAPTER_OFFSET 0
783 #define LLCP_FLAGS_OFFSET 1
784 #define LLCP_HEADER_LEN 2
787 * I2C link-layer on-disk format
789 struct i2c_file_hdr {
795 pcap_read_sunatm_pseudoheader(FILE_T fh,
796 union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
798 guint8 atm_phdr[SUNATM_LEN];
803 errno = WTAP_ERR_CANT_READ;
804 bytes_read = file_read(atm_phdr, SUNATM_LEN, fh);
805 if (bytes_read != SUNATM_LEN) {
806 *err = file_error(fh, err_info);
808 *err = WTAP_ERR_SHORT_READ;
812 vpi = atm_phdr[SUNATM_VPI];
813 vci = pntoh16(&atm_phdr[SUNATM_VCI]);
815 switch (atm_phdr[SUNATM_FLAGS] & 0x0F) {
817 case 0x01: /* LANE */
818 pseudo_header->atm.aal = AAL_5;
819 pseudo_header->atm.type = TRAF_LANE;
822 case 0x02: /* RFC 1483 LLC multiplexed traffic */
823 pseudo_header->atm.aal = AAL_5;
824 pseudo_header->atm.type = TRAF_LLCMX;
827 case 0x05: /* ILMI */
828 pseudo_header->atm.aal = AAL_5;
829 pseudo_header->atm.type = TRAF_ILMI;
832 case 0x06: /* Q.2931 */
833 pseudo_header->atm.aal = AAL_SIGNALLING;
834 pseudo_header->atm.type = TRAF_UNKNOWN;
837 case 0x03: /* MARS (RFC 2022) */
838 pseudo_header->atm.aal = AAL_5;
839 pseudo_header->atm.type = TRAF_UNKNOWN;
842 case 0x04: /* IFMP (Ipsilon Flow Management Protocol; see RFC 1954) */
843 pseudo_header->atm.aal = AAL_5;
844 pseudo_header->atm.type = TRAF_UNKNOWN; /* XXX - TRAF_IPSILON? */
849 * Assume it's AAL5, unless it's VPI 0 and VCI 5, in which
850 * case assume it's AAL_SIGNALLING; we know nothing more
853 * XXX - is this necessary? Or are we guaranteed that
854 * all signalling traffic has a type of 0x06?
856 * XXX - is this guaranteed to be AAL5? Or, if the type is
857 * 0x00 ("raw"), might it be non-AAL5 traffic?
859 if (vpi == 0 && vci == 5)
860 pseudo_header->atm.aal = AAL_SIGNALLING;
862 pseudo_header->atm.aal = AAL_5;
863 pseudo_header->atm.type = TRAF_UNKNOWN;
866 pseudo_header->atm.subtype = TRAF_ST_UNKNOWN;
868 pseudo_header->atm.vpi = vpi;
869 pseudo_header->atm.vci = vci;
870 pseudo_header->atm.channel = (atm_phdr[SUNATM_FLAGS] & 0x80) ? 0 : 1;
872 /* We don't have this information */
873 pseudo_header->atm.flags = 0;
874 pseudo_header->atm.cells = 0;
875 pseudo_header->atm.aal5t_u2u = 0;
876 pseudo_header->atm.aal5t_len = 0;
877 pseudo_header->atm.aal5t_chksum = 0;
883 pcap_read_nokiaatm_pseudoheader(FILE_T fh,
884 union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
886 guint8 atm_phdr[NOKIAATM_LEN];
891 errno = WTAP_ERR_CANT_READ;
892 bytes_read = file_read(atm_phdr, NOKIAATM_LEN, fh);
893 if (bytes_read != NOKIAATM_LEN) {
894 *err = file_error(fh, err_info);
896 *err = WTAP_ERR_SHORT_READ;
900 vpi = atm_phdr[NOKIAATM_VPI];
901 vci = pntoh16(&atm_phdr[NOKIAATM_VCI]);
903 pseudo_header->atm.vpi = vpi;
904 pseudo_header->atm.vci = vci;
905 pseudo_header->atm.channel = (atm_phdr[NOKIAATM_FLAGS] & 0x80) ? 0 : 1;
907 /* We don't have this information */
908 pseudo_header->atm.flags = 0;
909 pseudo_header->atm.cells = 0;
910 pseudo_header->atm.aal5t_u2u = 0;
911 pseudo_header->atm.aal5t_len = 0;
912 pseudo_header->atm.aal5t_chksum = 0;
918 pcap_read_nokia_pseudoheader(FILE_T fh,
919 union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
921 guint8 phdr[NOKIA_LEN];
924 errno = WTAP_ERR_CANT_READ;
926 /* backtrack to read the 4 mysterious bytes that aren't considered
927 * part of the packet size
929 if (file_seek(fh, -NOKIA_LEN, SEEK_CUR, err) == -1)
931 *err = file_error(fh, err_info);
933 *err = WTAP_ERR_SHORT_READ;
937 bytes_read = file_read(phdr, NOKIA_LEN, fh);
938 if (bytes_read != NOKIA_LEN) {
939 *err = file_error(fh, err_info);
941 *err = WTAP_ERR_SHORT_READ;
945 memcpy(pseudo_header->nokia.stuff, phdr, NOKIA_LEN);
951 pcap_read_irda_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header,
952 int *err, gchar **err_info)
954 guint8 irda_phdr[IRDA_SLL_LEN];
957 errno = WTAP_ERR_CANT_READ;
958 bytes_read = file_read(irda_phdr, IRDA_SLL_LEN, fh);
959 if (bytes_read != IRDA_SLL_LEN) {
960 *err = file_error(fh, err_info);
962 *err = WTAP_ERR_SHORT_READ;
966 if (pntoh16(&irda_phdr[IRDA_SLL_PROTOCOL_OFFSET]) != 0x0017) {
967 *err = WTAP_ERR_BAD_FILE;
968 if (err_info != NULL)
969 *err_info = g_strdup("libpcap: IrDA capture has a packet with an invalid sll_protocol field");
973 pseudo_header->irda.pkttype = pntoh16(&irda_phdr[IRDA_SLL_PKTTYPE_OFFSET]);
979 pcap_read_mtp2_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
981 guint8 mtp2_hdr[MTP2_HDR_LEN];
984 errno = WTAP_ERR_CANT_READ;
985 bytes_read = file_read(mtp2_hdr, MTP2_HDR_LEN, fh);
986 if (bytes_read != MTP2_HDR_LEN) {
987 *err = file_error(fh, err_info);
989 *err = WTAP_ERR_SHORT_READ;
993 pseudo_header->mtp2.sent = mtp2_hdr[MTP2_SENT_OFFSET];
994 pseudo_header->mtp2.annex_a_used = mtp2_hdr[MTP2_ANNEX_A_USED_OFFSET];
995 pseudo_header->mtp2.link_number = pntoh16(&mtp2_hdr[MTP2_LINK_NUMBER_OFFSET]);
1001 pcap_read_lapd_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header,
1002 int *err, gchar **err_info)
1004 guint8 lapd_phdr[LAPD_SLL_LEN];
1007 errno = WTAP_ERR_CANT_READ;
1008 bytes_read = file_read(lapd_phdr, LAPD_SLL_LEN, fh);
1009 if (bytes_read != LAPD_SLL_LEN) {
1010 *err = file_error(fh, err_info);
1012 *err = WTAP_ERR_SHORT_READ;
1016 if (pntoh16(&lapd_phdr[LAPD_SLL_PROTOCOL_OFFSET]) != ETH_P_LAPD) {
1017 *err = WTAP_ERR_BAD_FILE;
1018 if (err_info != NULL)
1019 *err_info = g_strdup("libpcap: LAPD capture has a packet with an invalid sll_protocol field");
1023 pseudo_header->lapd.pkttype = pntoh16(&lapd_phdr[LAPD_SLL_PKTTYPE_OFFSET]);
1024 pseudo_header->lapd.we_network = !!lapd_phdr[LAPD_SLL_ADDR_OFFSET+0];
1030 pcap_read_sita_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
1032 guint8 sita_phdr[SITA_HDR_LEN];
1035 errno = WTAP_ERR_CANT_READ;
1036 bytes_read = file_read(sita_phdr, SITA_HDR_LEN, fh);
1037 if (bytes_read != SITA_HDR_LEN) {
1038 *err = file_error(fh, err_info);
1040 *err = WTAP_ERR_SHORT_READ;
1044 pseudo_header->sita.sita_flags = sita_phdr[SITA_FLAGS_OFFSET];
1045 pseudo_header->sita.sita_signals = sita_phdr[SITA_SIGNALS_OFFSET];
1046 pseudo_header->sita.sita_errors1 = sita_phdr[SITA_ERRORS1_OFFSET];
1047 pseudo_header->sita.sita_errors2 = sita_phdr[SITA_ERRORS2_OFFSET];
1048 pseudo_header->sita.sita_proto = sita_phdr[SITA_PROTO_OFFSET];
1054 * When not using the memory-mapped interface to capture USB events,
1055 * code that reads those events can use the MON_IOCX_GET ioctl to
1056 * read a 48-byte header consisting of a "struct linux_usb_phdr", as
1057 * defined below, followed immediately by one of:
1059 * 8 bytes of a "struct usb_device_setup_hdr", if "setup_flag"
1060 * in the preceding "struct linux_usb_phdr" is 0;
1062 * in Linux 2.6.30 or later, 8 bytes of a "struct iso_rec", if
1063 * this is an isochronous transfer;
1065 * 8 bytes of junk, otherwise.
1067 * In Linux 2.6.31 and later, it can also use the MON_IOCX_GETX ioctl
1068 * to read a 64-byte header; that header consists of the 48 bytes
1069 * above, followed immediately by 16 bytes of a "struct linux_usb_phdr_ext",
1072 * In Linux 2.6.21 and later, there's a memory-mapped interface to
1073 * capture USB events. In that interface, the events in the memory-mapped
1074 * buffer have a 64-byte header, followed immediately by the data.
1075 * In Linux 2.6.21 through 2.6.30.x, the 64-byte header is the 48-byte
1076 * header described above, followed by 16 bytes of zeroes; in Linux
1077 * 2.6.31 and later, the 64-byte header is the 64-byte header described
1080 * See linux/Documentation/usb/usbmon.txt and libpcap/pcap/usb.h for details.
1082 * With WTAP_ENCAP_USB_LINUX, packets have the 48-byte header; with
1083 * WTAP_ENCAP_USB_LINUX_MMAPPED, they have the 64-byte header. There
1084 * is no indication of whether the header has the "struct iso_rec", or
1085 * whether the last 16 bytes of a 64-byte header are all zeros or are
1086 * a "struct linux_usb_phdr_ext".
1090 * URB transfer_type values
1092 #define URB_ISOCHRONOUS 0x0
1093 #define URB_INTERRUPT 0x1
1094 #define URB_CONTROL 0x2
1095 #define URB_BULK 0x3
1098 * Information from the URB for Isochronous transfers.
1100 * This structure is 8 bytes long.
1108 * Header prepended by Linux kernel to each USB event.
1110 * (Setup flag is '-', 'D', 'Z', or 0. Data flag is '<', '>', 'Z', or 0.)
1112 * The values are in *host* byte order.
1114 struct linux_usb_phdr {
1115 guint64 id; /* urb id, to link submission and completion events */
1116 guint8 event_type; /* Submit ('S'), Completed ('C'), Error ('E') */
1117 guint8 transfer_type; /* ISO (0), Intr, Control, Bulk (3) */
1118 guint8 endpoint_number; /* Endpoint number (0-15) and transfer direction */
1119 guint8 device_address; /* 0-127 */
1121 gint8 setup_flag; /* 0, if the urb setup header is meaningful */
1122 gint8 data_flag; /* 0, if urb data is present */
1126 guint32 urb_len; /* whole len of urb this event refers to */
1127 guint32 data_len; /* amount of urb data really present in this event */
1130 * Packet-type-dependent data.
1131 * USB setup information of setup_flag is true.
1132 * Otherwise, some isochronous transfer information.
1140 * This data is provided by Linux 2.6.31 and later kernels.
1142 * For WTAP_ENCAP_USB_LINUX, it's not in the pseudo-header, so
1143 * the pseudo-header is always 48 bytes long, including the
1144 * packet-type-dependent data.
1146 * For WTAP_ENCAP_USB_LINUX_MMAPPED, the pseudo-header is always
1147 * 64 bytes long, with the packet-type-dependent data preceding
1148 * these last 16 bytes. In pre-2.6.31 kernels, it's zero padding;
1149 * in 2.6.31 and later, it's the following data.
1151 gint32 interval; /* only for Interrupt and Isochronous events */
1152 gint32 start_frame; /* for Isochronous */
1153 guint32 xfer_flags; /* copy of URB's transfer_flags */
1154 guint32 ndesc; /* actual number of isochronous descriptors */
1157 struct linux_usb_isodesc {
1165 * USB setup header as defined in USB specification
1166 * See usb_20.pdf, Chapter 9.3 'USB Device Requests' for details.
1167 * http://www.usb.org/developers/docs/usb_20_122909-2.zip
1169 * This structure is 8 bytes long.
1171 struct usb_device_setup_hdr {
1172 gint8 bmRequestType;
1181 * Offset of the *end* of a field within a particular structure.
1183 #define END_OFFSETOF(basep, fieldp) \
1184 (((char *)(void *)(fieldp)) - ((char *)(void *)(basep)) + \
1188 pcap_process_linux_usb_pseudoheader(guint packet_size, gboolean byte_swapped,
1189 gboolean header_len_64_bytes, guint8 *pd)
1191 struct linux_usb_phdr *phdr;
1192 struct linux_usb_isodesc *pisodesc;
1193 gint32 iso_numdesc, i;
1197 * Greasy hack, but we never directly direference any of
1198 * the fields in *phdr, we just get offsets of and
1199 * addresses of its members, so it's safe.
1201 phdr = (struct linux_usb_phdr *)(void *)pd;
1203 if (packet_size < END_OFFSETOF(phdr, &phdr->id))
1205 PBSWAP64((guint8 *)&phdr->id);
1206 if (packet_size < END_OFFSETOF(phdr, &phdr->bus_id))
1208 PBSWAP16((guint8 *)&phdr->bus_id);
1209 if (packet_size < END_OFFSETOF(phdr, &phdr->ts_sec))
1211 PBSWAP64((guint8 *)&phdr->ts_sec);
1212 if (packet_size < END_OFFSETOF(phdr, &phdr->ts_usec))
1214 PBSWAP32((guint8 *)&phdr->ts_usec);
1215 if (packet_size < END_OFFSETOF(phdr, &phdr->status))
1217 PBSWAP32((guint8 *)&phdr->status);
1218 if (packet_size < END_OFFSETOF(phdr, &phdr->urb_len))
1220 PBSWAP32((guint8 *)&phdr->urb_len);
1221 if (packet_size < END_OFFSETOF(phdr, &phdr->data_len))
1223 PBSWAP32((guint8 *)&phdr->data_len);
1225 if (phdr->transfer_type == URB_ISOCHRONOUS) {
1226 if (packet_size < END_OFFSETOF(phdr, &phdr->s.iso.error_count))
1228 PBSWAP32((guint8 *)&phdr->s.iso.error_count);
1230 if (packet_size < END_OFFSETOF(phdr, &phdr->s.iso.numdesc))
1232 PBSWAP32((guint8 *)&phdr->s.iso.numdesc);
1236 if (header_len_64_bytes) {
1238 * This is either the "version 1" header, with
1239 * 16 bytes of additional fields at the end, or
1240 * a "version 0" header from a memory-mapped
1241 * capture, with 16 bytes of zeroed-out padding
1242 * at the end. Byte swap them as if this were
1243 * a "version 1" header.
1245 * Yes, the first argument to END_OFFSETOF() should
1246 * be phdr, not phdr_ext; we want the offset of
1247 * the additional fields from the beginning of
1250 if (packet_size < END_OFFSETOF(phdr, &phdr->interval))
1252 PBSWAP32((guint8 *)&phdr->interval);
1253 if (packet_size < END_OFFSETOF(phdr, &phdr->start_frame))
1255 PBSWAP32((guint8 *)&phdr->start_frame);
1256 if (packet_size < END_OFFSETOF(phdr, &phdr->xfer_flags))
1258 PBSWAP32((guint8 *)&phdr->xfer_flags);
1259 if (packet_size < END_OFFSETOF(phdr, &phdr->ndesc))
1261 PBSWAP32((guint8 *)&phdr->ndesc);
1264 if (phdr->transfer_type == URB_ISOCHRONOUS) {
1265 /* swap the values in struct linux_usb_isodesc */
1268 * See previous "Greasy hack" comment.
1270 if (header_len_64_bytes) {
1271 pisodesc = (struct linux_usb_isodesc*)(void *)(pd + 64);
1273 pisodesc = (struct linux_usb_isodesc*)(void *)(pd + 48);
1275 iso_numdesc = phdr->s.iso.numdesc;
1276 for (i = 0; i < iso_numdesc; i++) {
1277 /* always check if we have enough data from the
1278 * beginnig of the packet (phdr)
1280 if (packet_size < END_OFFSETOF(phdr, &pisodesc->iso_status))
1282 PBSWAP32((guint8 *)&pisodesc->iso_status);
1283 if (packet_size < END_OFFSETOF(phdr, &pisodesc->iso_off))
1285 PBSWAP32((guint8 *)&pisodesc->iso_off);
1286 if (packet_size < END_OFFSETOF(phdr, &pisodesc->iso_len))
1288 PBSWAP32((guint8 *)&pisodesc->iso_len);
1289 if (packet_size < END_OFFSETOF(phdr, &pisodesc->_pad))
1291 PBSWAP32((guint8 *)&pisodesc->_pad);
1300 pcap_read_bt_pseudoheader(FILE_T fh,
1301 union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
1304 struct libpcap_bt_phdr phdr;
1306 errno = WTAP_ERR_CANT_READ;
1307 bytes_read = file_read(&phdr,
1308 sizeof (struct libpcap_bt_phdr), fh);
1309 if (bytes_read != sizeof (struct libpcap_bt_phdr)) {
1310 *err = file_error(fh, err_info);
1312 *err = WTAP_ERR_SHORT_READ;
1315 pseudo_header->p2p.sent = ((g_ntohl(phdr.direction) & LIBPCAP_BT_PHDR_RECV) == 0)? TRUE: FALSE;
1320 pcap_read_llcp_pseudoheader(FILE_T fh,
1321 union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
1324 guint8 phdr[LLCP_HEADER_LEN];
1326 errno = WTAP_ERR_CANT_READ;
1327 bytes_read = file_read(phdr, LLCP_HEADER_LEN, fh);
1328 if (bytes_read != LLCP_HEADER_LEN) {
1329 *err = file_error(fh, err_info);
1331 *err = WTAP_ERR_SHORT_READ;
1334 pseudo_header->llcp.adapter = phdr[LLCP_ADAPTER_OFFSET];
1335 pseudo_header->llcp.flags = phdr[LLCP_FLAGS_OFFSET];
1340 pcap_read_ppp_pseudoheader(FILE_T fh,
1341 union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
1344 struct libpcap_ppp_phdr phdr;
1346 errno = WTAP_ERR_CANT_READ;
1347 bytes_read = file_read(&phdr,
1348 sizeof (struct libpcap_ppp_phdr), fh);
1349 if (bytes_read != sizeof (struct libpcap_ppp_phdr)) {
1350 *err = file_error(fh, err_info);
1352 *err = WTAP_ERR_SHORT_READ;
1355 pseudo_header->p2p.sent = (phdr.direction == LIBPCAP_PPP_PHDR_SENT) ? TRUE: FALSE;
1360 pcap_read_erf_pseudoheader(FILE_T fh, struct wtap_pkthdr *whdr,
1361 union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
1363 guint8 erf_hdr[sizeof(struct erf_phdr)];
1366 errno = WTAP_ERR_CANT_READ;
1367 bytes_read = file_read(erf_hdr, sizeof(struct erf_phdr), fh);
1368 if (bytes_read != sizeof(struct erf_phdr)) {
1369 *err = file_error(fh, err_info);
1371 *err = WTAP_ERR_SHORT_READ;
1374 pseudo_header->erf.phdr.ts = pletoh64(&erf_hdr[0]); /* timestamp */
1375 pseudo_header->erf.phdr.type = erf_hdr[8];
1376 pseudo_header->erf.phdr.flags = erf_hdr[9];
1377 pseudo_header->erf.phdr.rlen = pntoh16(&erf_hdr[10]);
1378 pseudo_header->erf.phdr.lctr = pntoh16(&erf_hdr[12]);
1379 pseudo_header->erf.phdr.wlen = pntoh16(&erf_hdr[14]);
1381 /* The high 32 bits of the timestamp contain the integer number of seconds
1382 * while the lower 32 bits contain the binary fraction of the second.
1383 * This allows an ultimate resolution of 1/(2^32) seconds, or approximately 233 picoseconds */
1385 guint64 ts = pseudo_header->erf.phdr.ts;
1386 whdr->ts.secs = (guint32) (ts >> 32);
1387 ts = ((ts & 0xffffffff) * 1000 * 1000 * 1000);
1388 ts += (ts & 0x80000000) << 1; /* rounding */
1389 whdr->ts.nsecs = ((guint32) (ts >> 32));
1390 if ( whdr->ts.nsecs >= 1000000000) {
1391 whdr->ts.nsecs -= 1000000000;
1399 * If the type of record given in the pseudo header indicate the presence of an extension
1400 * header then, read all the extension headers
1403 pcap_read_erf_exheader(FILE_T fh, union wtap_pseudo_header *pseudo_header,
1404 int *err, gchar **err_info, guint * psize)
1407 guint8 erf_exhdr[8];
1408 guint64 erf_exhdr_sw;
1409 int i = 0, max = sizeof(pseudo_header->erf.ehdr_list)/sizeof(struct erf_ehdr);
1412 if (pseudo_header->erf.phdr.type & 0x80){
1414 errno = WTAP_ERR_CANT_READ;
1415 bytes_read = file_read(erf_exhdr, 8, fh);
1416 if (bytes_read != 8 ) {
1417 *err = file_error(fh, err_info);
1419 *err = WTAP_ERR_SHORT_READ;
1422 type = erf_exhdr[0];
1423 erf_exhdr_sw = pntoh64(erf_exhdr);
1425 memcpy(&pseudo_header->erf.ehdr_list[i].ehdr, &erf_exhdr_sw, sizeof(erf_exhdr_sw));
1428 } while (type & 0x80);
1434 * If the type of record given in the pseudo header indicate the precense of a subheader
1435 * then, read this optional subheader
1438 pcap_read_erf_subheader(FILE_T fh, union wtap_pseudo_header *pseudo_header,
1439 int *err, gchar **err_info, guint * psize)
1441 guint8 erf_subhdr[sizeof(union erf_subhdr)];
1445 switch(pseudo_header->erf.phdr.type & 0x7F) {
1446 case ERF_TYPE_MC_HDLC:
1447 case ERF_TYPE_MC_RAW:
1448 case ERF_TYPE_MC_ATM:
1449 case ERF_TYPE_MC_RAW_CHANNEL:
1450 case ERF_TYPE_MC_AAL5:
1451 case ERF_TYPE_MC_AAL2:
1452 case ERF_TYPE_COLOR_MC_HDLC_POS:
1453 /* Extract the Multi Channel header to include it in the pseudo header part */
1454 errno = WTAP_ERR_CANT_READ;
1455 bytes_read = file_read(erf_subhdr, sizeof(erf_mc_header_t), fh);
1456 if (bytes_read != sizeof(erf_mc_header_t) ) {
1457 *err = file_error(fh, err_info);
1459 *err = WTAP_ERR_SHORT_READ;
1462 pseudo_header->erf.subhdr.mc_hdr = pntoh32(&erf_subhdr[0]);
1463 *psize = sizeof(erf_mc_header_t);
1466 case ERF_TYPE_COLOR_ETH:
1467 case ERF_TYPE_DSM_COLOR_ETH:
1468 /* Extract the Ethernet additional header to include it in the pseudo header part */
1469 errno = WTAP_ERR_CANT_READ;
1470 bytes_read = file_read(erf_subhdr, sizeof(erf_eth_header_t), fh);
1471 if (bytes_read != sizeof(erf_eth_header_t) ) {
1472 *err = file_error(fh, err_info);
1474 *err = WTAP_ERR_SHORT_READ;
1477 pseudo_header->erf.subhdr.eth_hdr = pntoh16(&erf_subhdr[0]);
1478 *psize = sizeof(erf_eth_header_t);
1481 /* No optional pseudo header for this ERF type */
1488 pcap_read_i2c_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
1490 struct i2c_file_hdr i2c_hdr;
1493 errno = WTAP_ERR_CANT_READ;
1494 bytes_read = file_read(&i2c_hdr, sizeof (i2c_hdr), fh);
1495 if (bytes_read != sizeof (i2c_hdr)) {
1496 *err = file_error(fh, err_info);
1498 *err = WTAP_ERR_SHORT_READ;
1502 pseudo_header->i2c.is_event = i2c_hdr.bus & 0x80 ? 1 : 0;
1503 pseudo_header->i2c.bus = i2c_hdr.bus & 0x7f;
1504 pseudo_header->i2c.flags = pntoh32(&i2c_hdr.flags);
1510 pcap_process_pseudo_header(FILE_T fh, int file_type, int wtap_encap,
1511 guint packet_size, gboolean check_packet_size,
1512 struct wtap_pkthdr *phdr, int *err, gchar **err_info)
1517 switch (wtap_encap) {
1519 case WTAP_ENCAP_ATM_PDUS:
1520 if (file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP_NOKIA) {
1524 if (check_packet_size && packet_size < NOKIAATM_LEN) {
1526 * Uh-oh, the packet isn't big enough to even
1527 * have a pseudo-header.
1529 *err = WTAP_ERR_BAD_FILE;
1530 *err_info = g_strdup_printf("pcap: Nokia IPSO ATM file has a %u-byte packet, too small to have even an ATM pseudo-header",
1534 if (!pcap_read_nokiaatm_pseudoheader(fh,
1535 &phdr->pseudo_header, err, err_info))
1536 return -1; /* Read error */
1538 phdr_len = NOKIAATM_LEN;
1543 if (check_packet_size && packet_size < SUNATM_LEN) {
1545 * Uh-oh, the packet isn't big enough to even
1546 * have a pseudo-header.
1548 *err = WTAP_ERR_BAD_FILE;
1549 *err_info = g_strdup_printf("pcap: SunATM file has a %u-byte packet, too small to have even an ATM pseudo-header",
1553 if (!pcap_read_sunatm_pseudoheader(fh,
1554 &phdr->pseudo_header, err, err_info))
1555 return -1; /* Read error */
1557 phdr_len = SUNATM_LEN;
1561 case WTAP_ENCAP_ETHERNET:
1562 if (file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP_NOKIA) {
1564 * Nokia IPSO. Psuedo header has already been read, but it's not considered
1565 * part of the packet size, so reread it to store the data for later (when saving)
1567 if (!pcap_read_nokia_pseudoheader(fh, &phdr->pseudo_header, err, err_info))
1568 return -1; /* Read error */
1572 * We don't know whether there's an FCS in this frame or not.
1574 phdr->pseudo_header.eth.fcs_len = -1;
1577 case WTAP_ENCAP_IEEE_802_11:
1578 case WTAP_ENCAP_IEEE_802_11_PRISM:
1579 case WTAP_ENCAP_IEEE_802_11_RADIOTAP:
1580 case WTAP_ENCAP_IEEE_802_11_AVS:
1582 * We don't know whether there's an FCS in this frame or not.
1583 * XXX - are there any OSes where the capture mechanism
1586 phdr->pseudo_header.ieee_802_11.fcs_len = -1;
1587 phdr->pseudo_header.ieee_802_11.decrypted = FALSE;
1588 phdr->pseudo_header.ieee_802_11.channel = 0;
1589 phdr->pseudo_header.ieee_802_11.data_rate = 0;
1590 phdr->pseudo_header.ieee_802_11.signal_level = 0;
1593 case WTAP_ENCAP_IRDA:
1594 if (check_packet_size && packet_size < IRDA_SLL_LEN) {
1596 * Uh-oh, the packet isn't big enough to even
1597 * have a pseudo-header.
1599 *err = WTAP_ERR_BAD_FILE;
1600 *err_info = g_strdup_printf("pcap: IrDA file has a %u-byte packet, too small to have even an IrDA pseudo-header",
1604 if (!pcap_read_irda_pseudoheader(fh, &phdr->pseudo_header,
1606 return -1; /* Read error */
1608 phdr_len = IRDA_SLL_LEN;
1611 case WTAP_ENCAP_MTP2_WITH_PHDR:
1612 if (check_packet_size && packet_size < MTP2_HDR_LEN) {
1614 * Uh-oh, the packet isn't big enough to even
1615 * have a pseudo-header.
1617 *err = WTAP_ERR_BAD_FILE;
1618 *err_info = g_strdup_printf("pcap: MTP2 file has a %u-byte packet, too small to have even an MTP2 pseudo-header",
1622 if (!pcap_read_mtp2_pseudoheader(fh, &phdr->pseudo_header,
1624 return -1; /* Read error */
1626 phdr_len = MTP2_HDR_LEN;
1629 case WTAP_ENCAP_LINUX_LAPD:
1630 if (check_packet_size && packet_size < LAPD_SLL_LEN) {
1632 * Uh-oh, the packet isn't big enough to even
1633 * have a pseudo-header.
1635 *err = WTAP_ERR_BAD_FILE;
1636 *err_info = g_strdup_printf("pcap: LAPD file has a %u-byte packet, too small to have even a LAPD pseudo-header",
1640 if (!pcap_read_lapd_pseudoheader(fh, &phdr->pseudo_header,
1642 return -1; /* Read error */
1644 phdr_len = LAPD_SLL_LEN;
1647 case WTAP_ENCAP_SITA:
1648 if (check_packet_size && packet_size < SITA_HDR_LEN) {
1650 * Uh-oh, the packet isn't big enough to even
1651 * have a pseudo-header.
1653 *err = WTAP_ERR_BAD_FILE;
1654 *err_info = g_strdup_printf("pcap: SITA file has a %u-byte packet, too small to have even a SITA pseudo-header",
1658 if (!pcap_read_sita_pseudoheader(fh, &phdr->pseudo_header,
1660 return -1; /* Read error */
1662 phdr_len = SITA_HDR_LEN;
1665 case WTAP_ENCAP_BLUETOOTH_H4:
1666 /* We don't have pseudoheader, so just pretend we received everything. */
1667 phdr->pseudo_header.p2p.sent = FALSE;
1670 case WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR:
1671 if (check_packet_size &&
1672 packet_size < sizeof (struct libpcap_bt_phdr)) {
1674 * Uh-oh, the packet isn't big enough to even
1675 * have a pseudo-header.
1677 *err = WTAP_ERR_BAD_FILE;
1678 *err_info = g_strdup_printf("pcap: libpcap bluetooth file has a %u-byte packet, too small to have even a pseudo-header",
1682 if (!pcap_read_bt_pseudoheader(fh,
1683 &phdr->pseudo_header, err, err_info))
1684 return -1; /* Read error */
1686 phdr_len = (int)sizeof (struct libpcap_bt_phdr);
1689 case WTAP_ENCAP_NFC_LLCP:
1690 if (check_packet_size && packet_size < LLCP_HEADER_LEN) {
1691 *err = WTAP_ERR_BAD_FILE;
1692 *err_info = g_strdup_printf("pcap: libpcap llcp file too short");
1695 if (!pcap_read_llcp_pseudoheader(fh, &phdr->pseudo_header, err, err_info))
1696 return -1; /* Read error */
1697 phdr_len = LLCP_HEADER_LEN;
1700 case WTAP_ENCAP_PPP_WITH_PHDR:
1701 if (check_packet_size &&
1702 packet_size < sizeof (struct libpcap_ppp_phdr)) {
1704 * Uh-oh, the packet isn't big enough to even
1705 * have a pseudo-header.
1707 *err = WTAP_ERR_BAD_FILE;
1708 *err_info = g_strdup_printf("pcap: libpcap ppp file has a %u-byte packet, too small to have even a pseudo-header",
1712 if (!pcap_read_ppp_pseudoheader(fh,
1713 &phdr->pseudo_header, err, err_info))
1714 return -1; /* Read error */
1716 phdr_len = (int)sizeof (struct libpcap_ppp_phdr);
1719 case WTAP_ENCAP_ERF:
1720 if (check_packet_size &&
1721 packet_size < sizeof(struct erf_phdr) ) {
1723 * Uh-oh, the packet isn't big enough to even
1724 * have a pseudo-header.
1726 *err = WTAP_ERR_BAD_FILE;
1727 *err_info = g_strdup_printf("pcap: ERF file has a %u-byte packet, too small to have even an ERF pseudo-header",
1732 if (!pcap_read_erf_pseudoheader(fh, phdr, &phdr->pseudo_header,
1734 return -1; /* Read error */
1736 phdr_len = (int)sizeof(struct erf_phdr);
1738 /* check the optional Extension header */
1739 if (!pcap_read_erf_exheader(fh, &phdr->pseudo_header, err, err_info,
1741 return -1; /* Read error */
1745 /* check the optional Multi Channel header */
1746 if (!pcap_read_erf_subheader(fh, &phdr->pseudo_header, err, err_info,
1748 return -1; /* Read error */
1752 if (check_packet_size &&
1753 packet_size < (guint)phdr_len) {
1755 * Uh-oh, the packet isn't big enough for the pseudo-
1758 *err = WTAP_ERR_BAD_FILE;
1759 *err_info = g_strdup_printf("pcap: ERF file has a %u-byte packet, too small for a pseudo-header with ex- and sub-headers (%d)",
1760 packet_size, phdr_len);
1765 case WTAP_ENCAP_I2C:
1766 if (check_packet_size &&
1767 packet_size < sizeof (struct i2c_file_hdr)) {
1769 * Uh-oh, the packet isn't big enough to even
1770 * have a pseudo-header.
1772 *err = WTAP_ERR_BAD_FILE;
1773 *err_info = g_strdup_printf("pcap: I2C file has a %u-byte packet, too small to have even a I2C pseudo-header",
1777 if (!pcap_read_i2c_pseudoheader(fh, &phdr->pseudo_header,
1779 return -1; /* Read error */
1782 * Don't count the pseudo-header as part of the packet.
1784 phdr_len = (int)sizeof (struct i2c_file_hdr);
1792 pcap_read_post_process(int file_type, int wtap_encap,
1793 union wtap_pseudo_header *pseudo_header,
1794 guint8 *pd, guint packet_size, gboolean bytes_swapped, int fcs_len)
1796 switch (wtap_encap) {
1798 case WTAP_ENCAP_ATM_PDUS:
1799 if (file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP_NOKIA) {
1803 * Guess the traffic type based on the packet
1806 atm_guess_traffic_type(pd, packet_size, pseudo_header);
1811 * If this is ATM LANE traffic, try to guess what
1812 * type of LANE traffic it is based on the packet
1815 if (pseudo_header->atm.type == TRAF_LANE)
1816 atm_guess_lane_type(pd, packet_size,
1821 case WTAP_ENCAP_ETHERNET:
1822 pseudo_header->eth.fcs_len = fcs_len;
1825 case WTAP_ENCAP_USB_LINUX:
1826 pcap_process_linux_usb_pseudoheader(packet_size,
1827 bytes_swapped, FALSE, pd);
1830 case WTAP_ENCAP_USB_LINUX_MMAPPED:
1831 pcap_process_linux_usb_pseudoheader(packet_size,
1832 bytes_swapped, TRUE, pd);
1835 case WTAP_ENCAP_NETANALYZER:
1837 * Not strictly necessary, as the netANALYZER
1838 * dissector calls the "Ethernet with FCS"
1839 * dissector, but we might as well set it.
1841 pseudo_header->eth.fcs_len = 4;
1850 pcap_get_phdr_size(int encap, const union wtap_pseudo_header *pseudo_header)
1856 case WTAP_ENCAP_ATM_PDUS:
1857 hdrsize = SUNATM_LEN;
1860 case WTAP_ENCAP_IRDA:
1861 hdrsize = IRDA_SLL_LEN;
1864 case WTAP_ENCAP_MTP2_WITH_PHDR:
1865 hdrsize = MTP2_HDR_LEN;
1868 case WTAP_ENCAP_LINUX_LAPD:
1869 hdrsize = LAPD_SLL_LEN;
1872 case WTAP_ENCAP_SITA:
1873 hdrsize = SITA_HDR_LEN;
1876 case WTAP_ENCAP_ERF:
1877 hdrsize = (int)sizeof (struct erf_phdr);
1878 switch (pseudo_header->erf.phdr.type & 0x7F) {
1880 case ERF_TYPE_MC_HDLC:
1881 case ERF_TYPE_MC_RAW:
1882 case ERF_TYPE_MC_ATM:
1883 case ERF_TYPE_MC_RAW_CHANNEL:
1884 case ERF_TYPE_MC_AAL5:
1885 case ERF_TYPE_MC_AAL2:
1886 case ERF_TYPE_COLOR_MC_HDLC_POS:
1887 hdrsize += (int)sizeof(struct erf_mc_hdr);
1891 case ERF_TYPE_COLOR_ETH:
1892 case ERF_TYPE_DSM_COLOR_ETH:
1893 hdrsize += (int)sizeof(struct erf_eth_hdr);
1901 * Add in the lengths of the extension headers.
1903 if (pseudo_header->erf.phdr.type & 0x80) {
1904 int i = 0, max = sizeof(pseudo_header->erf.ehdr_list)/sizeof(struct erf_ehdr);
1905 guint8 erf_exhdr[8];
1909 phtonll(erf_exhdr, pseudo_header->erf.ehdr_list[i].ehdr);
1910 type = erf_exhdr[0];
1913 } while (type & 0x80 && i < max);
1917 case WTAP_ENCAP_I2C:
1918 hdrsize = (int)sizeof (struct i2c_file_hdr);
1921 case WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR:
1922 hdrsize = (int)sizeof (struct libpcap_bt_phdr);
1925 case WTAP_ENCAP_PPP_WITH_PHDR:
1926 hdrsize = (int)sizeof (struct libpcap_ppp_phdr);
1938 pcap_write_phdr(wtap_dumper *wdh, int encap, const union wtap_pseudo_header *pseudo_header,
1941 guint8 atm_hdr[SUNATM_LEN];
1942 guint8 irda_hdr[IRDA_SLL_LEN];
1943 guint8 lapd_hdr[LAPD_SLL_LEN];
1944 guint8 mtp2_hdr[MTP2_HDR_LEN];
1945 guint8 sita_hdr[SITA_HDR_LEN];
1946 guint8 erf_hdr[ sizeof(struct erf_mc_phdr)];
1947 struct i2c_file_hdr i2c_hdr;
1948 struct libpcap_bt_phdr bt_hdr;
1949 struct libpcap_ppp_phdr ppp_hdr;
1954 case WTAP_ENCAP_ATM_PDUS:
1956 * Write the ATM header.
1958 atm_hdr[SUNATM_FLAGS] =
1959 (pseudo_header->atm.channel == 0) ? 0x80 : 0x00;
1960 switch (pseudo_header->atm.aal) {
1962 case AAL_SIGNALLING:
1964 atm_hdr[SUNATM_FLAGS] |= 0x06;
1968 switch (pseudo_header->atm.type) {
1972 atm_hdr[SUNATM_FLAGS] |= 0x01;
1976 /* RFC 1483 LLC multiplexed traffic */
1977 atm_hdr[SUNATM_FLAGS] |= 0x02;
1982 atm_hdr[SUNATM_FLAGS] |= 0x05;
1987 atm_hdr[SUNATM_VPI] = (guint8)pseudo_header->atm.vpi;
1988 phtons(&atm_hdr[SUNATM_VCI], pseudo_header->atm.vci);
1989 if (!wtap_dump_file_write(wdh, atm_hdr, sizeof(atm_hdr), err))
1991 wdh->bytes_dumped += sizeof(atm_hdr);
1994 case WTAP_ENCAP_IRDA:
1996 * Write the IrDA header.
1998 memset(irda_hdr, 0, sizeof(irda_hdr));
1999 phtons(&irda_hdr[IRDA_SLL_PKTTYPE_OFFSET],
2000 pseudo_header->irda.pkttype);
2001 phtons(&irda_hdr[IRDA_SLL_PROTOCOL_OFFSET], 0x0017);
2002 if (!wtap_dump_file_write(wdh, irda_hdr, sizeof(irda_hdr), err))
2004 wdh->bytes_dumped += sizeof(irda_hdr);
2007 case WTAP_ENCAP_MTP2_WITH_PHDR:
2009 * Write the MTP2 header.
2011 memset(&mtp2_hdr, 0, sizeof(mtp2_hdr));
2012 mtp2_hdr[MTP2_SENT_OFFSET] = pseudo_header->mtp2.sent;
2013 mtp2_hdr[MTP2_ANNEX_A_USED_OFFSET] = pseudo_header->mtp2.annex_a_used;
2014 phtons(&mtp2_hdr[MTP2_LINK_NUMBER_OFFSET],
2015 pseudo_header->mtp2.link_number);
2016 if (!wtap_dump_file_write(wdh, mtp2_hdr, sizeof(mtp2_hdr), err))
2018 wdh->bytes_dumped += sizeof(mtp2_hdr);
2021 case WTAP_ENCAP_LINUX_LAPD:
2023 * Write the LAPD header.
2025 memset(&lapd_hdr, 0, sizeof(lapd_hdr));
2026 phtons(&lapd_hdr[LAPD_SLL_PKTTYPE_OFFSET],
2027 pseudo_header->lapd.pkttype);
2028 phtons(&lapd_hdr[LAPD_SLL_PROTOCOL_OFFSET], ETH_P_LAPD);
2029 lapd_hdr[LAPD_SLL_ADDR_OFFSET + 0] =
2030 pseudo_header->lapd.we_network?0x01:0x00;
2031 if (!wtap_dump_file_write(wdh, lapd_hdr, sizeof(lapd_hdr), err))
2033 wdh->bytes_dumped += sizeof(lapd_hdr);
2036 case WTAP_ENCAP_SITA:
2038 * Write the SITA header.
2040 memset(&sita_hdr, 0, sizeof(sita_hdr));
2041 sita_hdr[SITA_FLAGS_OFFSET] = pseudo_header->sita.sita_flags;
2042 sita_hdr[SITA_SIGNALS_OFFSET] = pseudo_header->sita.sita_signals;
2043 sita_hdr[SITA_ERRORS1_OFFSET] = pseudo_header->sita.sita_errors1;
2044 sita_hdr[SITA_ERRORS2_OFFSET] = pseudo_header->sita.sita_errors2;
2045 sita_hdr[SITA_PROTO_OFFSET] = pseudo_header->sita.sita_proto;
2046 if (!wtap_dump_file_write(wdh, sita_hdr, sizeof(sita_hdr), err))
2048 wdh->bytes_dumped += sizeof(sita_hdr);
2051 case WTAP_ENCAP_ERF:
2053 * Write the ERF header.
2055 memset(&erf_hdr, 0, sizeof(erf_hdr));
2056 phtolell(&erf_hdr[0], pseudo_header->erf.phdr.ts);
2057 erf_hdr[8] = pseudo_header->erf.phdr.type;
2058 erf_hdr[9] = pseudo_header->erf.phdr.flags;
2059 phtons(&erf_hdr[10], pseudo_header->erf.phdr.rlen);
2060 phtons(&erf_hdr[12], pseudo_header->erf.phdr.lctr);
2061 phtons(&erf_hdr[14], pseudo_header->erf.phdr.wlen);
2062 size = sizeof(struct erf_phdr);
2064 switch(pseudo_header->erf.phdr.type & 0x7F) {
2065 case ERF_TYPE_MC_HDLC:
2066 case ERF_TYPE_MC_RAW:
2067 case ERF_TYPE_MC_ATM:
2068 case ERF_TYPE_MC_RAW_CHANNEL:
2069 case ERF_TYPE_MC_AAL5:
2070 case ERF_TYPE_MC_AAL2:
2071 case ERF_TYPE_COLOR_MC_HDLC_POS:
2072 phtonl(&erf_hdr[16], pseudo_header->erf.subhdr.mc_hdr);
2073 size += (int)sizeof(struct erf_mc_hdr);
2076 case ERF_TYPE_COLOR_ETH:
2077 case ERF_TYPE_DSM_COLOR_ETH:
2078 phtons(&erf_hdr[16], pseudo_header->erf.subhdr.eth_hdr);
2079 size += (int)sizeof(struct erf_eth_hdr);
2084 if (!wtap_dump_file_write(wdh, erf_hdr, size, err))
2086 wdh->bytes_dumped += size;
2089 * Now write out the extension headers.
2091 if (pseudo_header->erf.phdr.type & 0x80) {
2092 int i = 0, max = sizeof(pseudo_header->erf.ehdr_list)/sizeof(struct erf_ehdr);
2093 guint8 erf_exhdr[8];
2097 phtonll(erf_exhdr, pseudo_header->erf.ehdr_list[i].ehdr);
2098 type = erf_exhdr[0];
2099 if (!wtap_dump_file_write(wdh, erf_exhdr, 8, err))
2101 wdh->bytes_dumped += 8;
2103 } while (type & 0x80 && i < max);
2107 case WTAP_ENCAP_I2C:
2109 * Write the I2C header.
2111 memset(&i2c_hdr, 0, sizeof(i2c_hdr));
2112 i2c_hdr.bus = pseudo_header->i2c.bus |
2113 (pseudo_header->i2c.is_event ? 0x80 : 0x00);
2114 phtonl((guint8 *)&i2c_hdr.flags, pseudo_header->i2c.flags);
2115 if (!wtap_dump_file_write(wdh, &i2c_hdr, sizeof(i2c_hdr), err))
2117 wdh->bytes_dumped += sizeof(i2c_hdr);
2120 case WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR:
2121 bt_hdr.direction = GUINT32_TO_BE(pseudo_header->p2p.sent ? LIBPCAP_BT_PHDR_SENT : LIBPCAP_BT_PHDR_RECV);
2122 if (!wtap_dump_file_write(wdh, &bt_hdr, sizeof bt_hdr, err))
2124 wdh->bytes_dumped += sizeof bt_hdr;
2127 case WTAP_ENCAP_PPP_WITH_PHDR:
2128 ppp_hdr.direction = (pseudo_header->p2p.sent ? LIBPCAP_PPP_PHDR_SENT : LIBPCAP_PPP_PHDR_RECV);
2129 if (!wtap_dump_file_write(wdh, &ppp_hdr, sizeof ppp_hdr, err))
2131 wdh->bytes_dumped += sizeof ppp_hdr;