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Added a mapping between DLT_IPMI_HPM_2 link-layer header type to the IPMI Trace Wiretap encapsulation. Change-Id: I458d44ad0f51beecfe5589e0e9cb75f4771d866b Reviewed-on: https://code.wireshark.org/review/2054 Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
2280 lines
66 KiB
C
2280 lines
66 KiB
C
/* pcap-common.c
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* Code common to libpcap and pcap-NG file formats
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*
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* Wiretap Library
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* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
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*
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* File format support for pcap-ng file format
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* Copyright (c) 2007 by Ulf Lamping <ulf.lamping@web.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "wtap-int.h"
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#include "file_wrappers.h"
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#include "atm.h"
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#include "erf.h"
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#include "pcap-encap.h"
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#include "pcap-common.h"
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/*
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* Map link-layer header types (LINKTYPE_ values) to Wiretap encapsulations.
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*
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* Either LBL NRG wasn't an adequate central registry (e.g., because of
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* the slow rate of releases from them), or nobody bothered using them
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* as a central registry, as many different groups have patched libpcap
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* (and BPF, on the BSDs) to add new encapsulation types, and have ended
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* up using the same DLT_ values for different encapsulation types.
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*
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* The Tcpdump Group now maintains the list of link-layer header types;
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* they introduced a separate namespace of LINKTYPE_ values for the
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* values to be used in capture files, and have libpcap map between
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* those values in capture file headers and the DLT_ values that the
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* pcap_datalink() and pcap_open_dead() APIs use. See
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* http://www.tcpdump.org/linktypes.html for a list of LINKTYPE_ values.
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*
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* In most cases, the corresponding LINKTYPE_ and DLT_ values are the
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* same. In the cases where the same link-layer header type was given
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* different values in different OSes, a new LINKTYPE_ value was defined,
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* different from all of the existing DLT_ values.
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*
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* This table maps LINKTYPE_ values to the corresponding Wiretap
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* encapsulation. For cases where multiple DLT_ values were in use,
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* it also checks what <pcap.h> defineds to determine how to interpret
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* them, so that if a file was written by a version of libpcap prior
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* to the introduction of the LINKTYPE_ values, and has a DLT_ value
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* from the OS on which it was written rather than a LINKTYPE_ value
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* as its linktype value in the file header, we map the numerical
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* DLT_ value, as interpreted by the libpcap with which we're building
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* Wireshark/Wiretap interprets them (which, if it doesn't support
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* them at all, means we don't support them either - any capture files
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* using them are foreign, and we don't hazard a guess as to which
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* platform they came from; we could, I guess, choose the most likely
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* platform), to the corresponding Wiretap encapsulation.
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*
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* Note: if you need a new encapsulation type for libpcap files, do
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* *N*O*T* use *ANY* of the values listed here! I.e., do *NOT*
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* add a new encapsulation type by changing an existing entry;
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* leave the existing entries alone.
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*
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* Instead, send mail to tcpdump-workers@lists.tcpdump.org, asking for
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* a new LINKTYPE_/DLT_ value, and specifying the purpose of the new
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* value. When you get the new LINKTYPE_/DLT_ value, use that numerical
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* value in the "linktype_value" field of "pcap_to_wtap_map[]".
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*/
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static const struct {
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int linktype_value;
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int wtap_encap_value;
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} pcap_to_wtap_map[] = {
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/*
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* These are the values that are almost certainly the same
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* in all libpcaps (I've yet to find one where the values
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* in question are used for some purpose other than the
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* one below, but...), and thus assigned as LINKTYPE_ values,
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* and that Wiretap and Wireshark currently support.
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*/
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{ 0, WTAP_ENCAP_NULL }, /* null encapsulation */
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{ 1, WTAP_ENCAP_ETHERNET },
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{ 3, WTAP_ENCAP_AX25 },
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{ 6, WTAP_ENCAP_TOKEN_RING }, /* IEEE 802 Networks - assume token ring */
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{ 7, WTAP_ENCAP_ARCNET },
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{ 8, WTAP_ENCAP_SLIP },
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{ 9, WTAP_ENCAP_PPP },
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#ifdef BIT_SWAPPED_MAC_ADDRS
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{ 10, WTAP_ENCAP_FDDI_BITSWAPPED },
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#else
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{ 10, WTAP_ENCAP_FDDI },
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#endif
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{ 32, WTAP_ENCAP_REDBACK },
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/*
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* 50 is DLT_PPP_SERIAL in NetBSD; it appears that DLT_PPP
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* on BSD (at least according to standard tcpdump) has, as
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* the first octet, an indication of whether the packet was
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* transmitted or received (rather than having the standard
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* PPP address value of 0xff), but that DLT_PPP_SERIAL puts
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* a real live PPP header there, or perhaps a Cisco PPP header
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* as per section 4.3.1 of RFC 1547 (implementations of this
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* exist in various BSDs in "sys/net/if_spppsubr.c", and
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* I think also exist either in standard Linux or in
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* various Linux patches; the implementations show how to handle
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* Cisco keepalive packets).
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*
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* However, I don't see any obvious place in FreeBSD "if_ppp.c"
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* where anything other than the standard PPP header would be
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* passed up. I see some stuff that sets the first octet
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* to 0 for incoming and 1 for outgoing packets before applying
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* a BPF filter to see whether to drop packets whose protocol
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* field has the 0x8000 bit set, i.e. network control protocols -
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* those are handed up to userland - but that code puts the
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* address field back before passing the packet up.
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*
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* I also don't see anything immediately obvious that munges
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* the address field for sync PPP, either.
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*
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* Wireshark currently assumes that if the first octet of a
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* PPP frame is 0xFF, it's the address field and is followed
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* by a control field and a 2-byte protocol, otherwise the
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* address and control fields are absent and the frame begins
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* with a protocol field. If we ever see a BSD/OS PPP
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* capture, we'll have to handle it differently, and we may
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* have to handle standard BSD captures differently if, in fact,
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* they don't have 0xff 0x03 as the first two bytes - but, as per
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* the two paragraphs preceding this, it's not clear that
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* the address field *is* munged into an incoming/outgoing
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* field when the packet is handed to the BPF device.
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*
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* For now, we just map DLT_PPP_SERIAL to WTAP_ENCAP_PPP, as
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* we treat WTAP_ENCAP_PPP packets as if those beginning with
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* 0xff have the standard RFC 1662 "PPP in HDLC-like Framing"
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* 0xff 0x03 address/control header, and DLT_PPP_SERIAL frames
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* appear to contain that unless they're Cisco frames (if we
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* ever see a capture with them, we'd need to implement the
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* RFC 1547 stuff, and the keepalive protocol stuff).
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*
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* We may have to distinguish between "PPP where if it doesn't
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* begin with 0xff there's no HDLC encapsulation and the frame
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* begins with the protocol field" (which is how we handle
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* WTAP_ENCAP_PPP now) and "PPP where there's either HDLC
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* encapsulation or Cisco PPP" (which is what DLT_PPP_SERIAL
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* is) at some point.
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*
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* XXX - NetBSD has DLT_HDLC, which appears to be used for
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* Cisco HDLC. Ideally, they should use DLT_PPP_SERIAL
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* only for real live HDLC-encapsulated PPP, not for Cisco
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* HDLC.
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*/
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{ 50, WTAP_ENCAP_PPP },
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/*
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* Used by NetBSD and OpenBSD pppoe(4).
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*/
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{ 51, WTAP_ENCAP_PPP_ETHER },
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/*
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* Apparently used by the Axent Raptor firewall (now Symantec
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* Enterprise Firewall).
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* Thanks, Axent, for not reserving that type with tcpdump.org
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* and not telling anybody about it.
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*/
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{ 99, WTAP_ENCAP_SYMANTEC },
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/*
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* These are the values that libpcap 0.5 and later use in
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* capture file headers, in an attempt to work around the
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* confusion decried above, and that Wiretap and Wireshark
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* currently support. I.e., they're the LINKTYPE_ values
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* for RFC 1483 ATM and "raw IP", respectively, not the
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* DLT_ values for them on all platforms.
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*/
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{ 100, WTAP_ENCAP_ATM_RFC1483 },
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{ 101, WTAP_ENCAP_RAW_IP },
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#if 0
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/*
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* More values used by libpcap 0.5 as DLT_ values and used by the
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* current CVS version of libpcap in capture file headers.
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* They are not yet handled in Wireshark.
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* If we get a capture that contains them, we'll implement them.
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*/
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{ 102, WTAP_ENCAP_SLIP_BSDOS },
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{ 103, WTAP_ENCAP_PPP_BSDOS },
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#endif
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/*
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* These ones are handled in Wireshark, though.
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*/
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{ 104, WTAP_ENCAP_CHDLC }, /* Cisco HDLC */
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{ 105, WTAP_ENCAP_IEEE_802_11 }, /* IEEE 802.11 */
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{ 106, WTAP_ENCAP_LINUX_ATM_CLIP },
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{ 107, WTAP_ENCAP_FRELAY }, /* Frame Relay */
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{ 108, WTAP_ENCAP_NULL }, /* OpenBSD loopback */
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{ 109, WTAP_ENCAP_ENC }, /* OpenBSD IPSEC enc */
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#if 0
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{ 110, WTAP_ENCAP_LANE_802_3 },/* ATM LANE 802.3 */
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{ 111, WTAP_ENCAP_HIPPI }, /* NetBSD HIPPI */
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#endif
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{ 112, WTAP_ENCAP_CHDLC }, /* NetBSD HDLC framing */
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/*
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* Linux "cooked mode" captures, used by the current CVS version
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* of libpcap
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* OR
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* it could be a packet in Cisco's ERSPAN encapsulation which uses
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* this number as well (why can't people stick to protocols when it
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* comes to allocating/using DLT types).
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*/
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{ 113, WTAP_ENCAP_SLL }, /* Linux cooked capture */
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{ 114, WTAP_ENCAP_LOCALTALK }, /* Localtalk */
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/*
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* The tcpdump.org version of libpcap uses 117, rather than 17,
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* for OpenBSD packet filter logging, so as to avoid conflicting
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* with DLT_LANE8023 in SuSE 6.3 libpcap.
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*/
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{ 117, WTAP_ENCAP_PFLOG },
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{ 118, WTAP_ENCAP_CISCO_IOS },
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{ 119, WTAP_ENCAP_IEEE_802_11_PRISM }, /* 802.11 plus Prism monitor mode radio header */
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{ 121, WTAP_ENCAP_HHDLC }, /* HiPath HDLC */
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{ 122, WTAP_ENCAP_IP_OVER_FC }, /* RFC 2625 IP-over-FC */
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{ 123, WTAP_ENCAP_ATM_PDUS }, /* SunATM */
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{ 127, WTAP_ENCAP_IEEE_802_11_RADIOTAP }, /* 802.11 plus radiotap radio header */
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{ 128, WTAP_ENCAP_TZSP }, /* Tazmen Sniffer Protocol */
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{ 129, WTAP_ENCAP_ARCNET_LINUX },
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{ 130, WTAP_ENCAP_JUNIPER_MLPPP }, /* Juniper MLPPP on ML-, LS-, AS- PICs */
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{ 131, WTAP_ENCAP_JUNIPER_MLFR }, /* Juniper MLFR (FRF.15) on ML-, LS-, AS- PICs */
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{ 133, WTAP_ENCAP_JUNIPER_GGSN},
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/*
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* Values 132 and 134 not listed here are reserved for use
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* in Juniper hardware.
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*/
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{ 135, WTAP_ENCAP_JUNIPER_ATM2 }, /* various encapsulations captured on the ATM2 PIC */
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{ 136, WTAP_ENCAP_JUNIPER_SVCS }, /* various encapsulations captured on the services PIC */
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{ 137, WTAP_ENCAP_JUNIPER_ATM1 }, /* various encapsulations captured on the ATM1 PIC */
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{ 138, WTAP_ENCAP_APPLE_IP_OVER_IEEE1394 },
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/* Apple IP-over-IEEE 1394 */
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{ 139, WTAP_ENCAP_MTP2_WITH_PHDR },
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{ 140, WTAP_ENCAP_MTP2 },
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{ 141, WTAP_ENCAP_MTP3 },
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{ 142, WTAP_ENCAP_SCCP },
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{ 143, WTAP_ENCAP_DOCSIS },
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{ 144, WTAP_ENCAP_IRDA }, /* IrDA capture */
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/* Reserved for private use. */
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{ 147, WTAP_ENCAP_USER0 },
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{ 148, WTAP_ENCAP_USER1 },
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{ 149, WTAP_ENCAP_USER2 },
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{ 150, WTAP_ENCAP_USER3 },
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{ 151, WTAP_ENCAP_USER4 },
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{ 152, WTAP_ENCAP_USER5 },
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{ 153, WTAP_ENCAP_USER6 },
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{ 154, WTAP_ENCAP_USER7 },
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{ 155, WTAP_ENCAP_USER8 },
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{ 156, WTAP_ENCAP_USER9 },
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{ 157, WTAP_ENCAP_USER10 },
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{ 158, WTAP_ENCAP_USER11 },
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{ 159, WTAP_ENCAP_USER12 },
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{ 160, WTAP_ENCAP_USER13 },
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{ 161, WTAP_ENCAP_USER14 },
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{ 162, WTAP_ENCAP_USER15 },
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{ 163, WTAP_ENCAP_IEEE_802_11_AVS }, /* 802.11 plus AVS radio header */
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/*
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* 164 is reserved for Juniper-private chassis-internal
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* meta-information such as QoS profiles, etc..
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*/
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{ 165, WTAP_ENCAP_BACNET_MS_TP },
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/*
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* 166 is reserved for a PPP variant in which the first byte
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* of the 0xff03 header, the 0xff, is replaced by a direction
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* byte. I don't know whether any captures look like that,
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* but it is used for some Linux IP filtering (ipfilter?).
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*/
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/* Ethernet PPPoE frames captured on a service PIC */
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{ 167, WTAP_ENCAP_JUNIPER_PPPOE },
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/*
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* 168 is reserved for more Juniper private-chassis-
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* internal meta-information.
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*/
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{ 169, WTAP_ENCAP_GPRS_LLC },
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/*
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* 170 and 171 are reserved for ITU-T G.7041/Y.1303 Generic
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* Framing Procedure.
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*/
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/* Registered by Gcom, Inc. */
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{ 172, WTAP_ENCAP_GCOM_TIE1 },
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{ 173, WTAP_ENCAP_GCOM_SERIAL },
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{ 177, WTAP_ENCAP_LINUX_LAPD },
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/* Ethernet frames prepended with meta-information */
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{ 178, WTAP_ENCAP_JUNIPER_ETHER },
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/* PPP frames prepended with meta-information */
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{ 179, WTAP_ENCAP_JUNIPER_PPP },
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/* Frame-Relay frames prepended with meta-information */
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{ 180, WTAP_ENCAP_JUNIPER_FRELAY },
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/* C-HDLC frames prepended with meta-information */
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{ 181, WTAP_ENCAP_JUNIPER_CHDLC },
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/* VOIP Frames prepended with meta-information */
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{ 183, WTAP_ENCAP_JUNIPER_VP },
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/* raw USB packets */
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{ 186, WTAP_ENCAP_USB },
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/* Bluetooth HCI UART transport (part H:4) frames, like hcidump */
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{ 187, WTAP_ENCAP_BLUETOOTH_H4 },
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/* IEEE 802.16 MAC Common Part Sublayer */
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{ 188, WTAP_ENCAP_IEEE802_16_MAC_CPS },
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/* USB packets with Linux-specified header */
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{ 189, WTAP_ENCAP_USB_LINUX },
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/* CAN 2.0b frame */
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{ 190, WTAP_ENCAP_CAN20B },
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/* Per-Packet Information header */
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{ 192, WTAP_ENCAP_PPI },
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/* IEEE 802.15.4 Wireless PAN */
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{ 195, WTAP_ENCAP_IEEE802_15_4 },
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/* SITA File Encapsulation */
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{ 196, WTAP_ENCAP_SITA },
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/* Endace Record File Encapsulation */
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{ 197, WTAP_ENCAP_ERF },
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/* IPMB */
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{ 199, WTAP_ENCAP_IPMB },
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/* Bluetooth HCI UART transport (part H:4) frames, like hcidump */
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{ 201, WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR },
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/* AX.25 packet with a 1-byte KISS header */
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{ 202, WTAP_ENCAP_AX25_KISS },
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/* LAPD frame */
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{ 203, WTAP_ENCAP_LAPD },
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/* PPP with pseudoheader */
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{ 204, WTAP_ENCAP_PPP_WITH_PHDR },
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/* IPMB/I2C */
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{ 209, WTAP_ENCAP_I2C },
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/* FlexRay frame */
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{ 210, WTAP_ENCAP_FLEXRAY },
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/* MOST frame */
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{ 211, WTAP_ENCAP_MOST },
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/* LIN frame */
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{ 212, WTAP_ENCAP_LIN },
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/* X2E Xoraya serial frame */
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{ 213, WTAP_ENCAP_X2E_SERIAL },
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/* X2E Xoraya frame */
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{ 214, WTAP_ENCAP_X2E_XORAYA },
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/* IEEE 802.15.4 Wireless PAN non-ASK PHY */
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{ 215, WTAP_ENCAP_IEEE802_15_4_NONASK_PHY },
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/* USB packets with padded Linux-specified header */
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{ 220, WTAP_ENCAP_USB_LINUX_MMAPPED },
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/* Fibre Channel FC-2 frame */
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{ 224, WTAP_ENCAP_FIBRE_CHANNEL_FC2 },
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/* Fibre Channel FC-2 frame with Delimiter */
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{ 225, WTAP_ENCAP_FIBRE_CHANNEL_FC2_WITH_FRAME_DELIMS },
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/* Solaris IPNET */
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{ 226, WTAP_ENCAP_IPNET },
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/* SocketCAN frame */
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{ 227, WTAP_ENCAP_SOCKETCAN },
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/* Raw IPv4 */
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{ 228, WTAP_ENCAP_RAW_IP4 },
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/* Raw IPv6 */
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{ 229, WTAP_ENCAP_RAW_IP6 },
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/* IEEE 802.15.4 Wireless PAN no fcs */
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{ 230, WTAP_ENCAP_IEEE802_15_4_NOFCS },
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/* D-BUS */
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{ 231, WTAP_ENCAP_DBUS },
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/* DVB-CI (Common Interface) */
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{ 235, WTAP_ENCAP_DVBCI },
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/* MUX27010 */
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{ 236, WTAP_ENCAP_MUX27010 },
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/* STANAG 5066 - DTS(Data Transfer Sublayer) PDU */
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{ 237, WTAP_ENCAP_STANAG_5066_D_PDU },
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/* NFLOG */
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{ 239, WTAP_ENCAP_NFLOG },
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/* netANALYZER pseudo-header followed by Ethernet with CRC */
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{ 240, WTAP_ENCAP_NETANALYZER },
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/* netANALYZER pseudo-header in transparent mode */
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{ 241, WTAP_ENCAP_NETANALYZER_TRANSPARENT },
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/* IP-over-Infiniband, as specified by RFC 4391 section 6 */
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{ 242, WTAP_ENCAP_IP_OVER_IB },
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/* ISO/IEC 13818-1 MPEG2-TS packets */
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{ 243, WTAP_ENCAP_MPEG_2_TS },
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/* NFC LLCP */
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{ 245, WTAP_ENCAP_NFC_LLCP },
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/* SCTP */
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{ 248, WTAP_ENCAP_SCTP},
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/* USBPcap */
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{ 249, WTAP_ENCAP_USBPCAP},
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/* RTAC SERIAL */
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|
{ 250, WTAP_ENCAP_RTAC_SERIAL},
|
|
/* Bluetooth Low Energy Link Layer */
|
|
{ 251, WTAP_ENCAP_BLUETOOTH_LE_LL},
|
|
/* Wireshark Upper PDU export */
|
|
{ 252, WTAP_ENCAP_WIRESHARK_UPPER_PDU},
|
|
/* Netlink Protocol (nlmon devices) */
|
|
{ 253, WTAP_ENCAP_NETLINK },
|
|
/* Bluetooth Linux Monitor */
|
|
{ 254, WTAP_ENCAP_BLUETOOTH_LINUX_MONITOR },
|
|
/* Bluetooth BR/EDR Baseband RF captures */
|
|
{ 255, WTAP_ENCAP_BLUETOOTH_BREDR_BB },
|
|
/* Bluetooth Low Energy Link Layer RF captures */
|
|
{ 256, WTAP_ENCAP_BLUETOOTH_LE_LL_WITH_PHDR },
|
|
|
|
/* Apple PKTAP */
|
|
{ 258, WTAP_ENCAP_PKTAP },
|
|
|
|
/* Ethernet Passive Optical Network */
|
|
{ 259, WTAP_ENCAP_EPON },
|
|
|
|
/* IPMI Trace Data Collection */
|
|
{ 260, WTAP_ENCAP_IPMI_TRACE },
|
|
|
|
/*
|
|
* To repeat:
|
|
*
|
|
* If you need a new encapsulation type for libpcap files, do
|
|
* *N*O*T* use *ANY* of the values listed here! I.e., do *NOT*
|
|
* add a new encapsulation type by changing an existing entry;
|
|
* leave the existing entries alone.
|
|
*
|
|
* Instead, send mail to tcpdump-workers@lists.tcpdump.org, asking
|
|
* for a new DLT_ value, and specifying the purpose of the new value.
|
|
* When you get the new DLT_ value, use that numerical value in
|
|
* the "linktype_value" field of "pcap_to_wtap_map[]".
|
|
*/
|
|
|
|
/*
|
|
* The following are entries for libpcap type values that have
|
|
* different meanings on different OSes. I.e., these are DLT_
|
|
* values that are different on different OSes, and that have
|
|
* a separate LINKTYPE_ value assigned to them.
|
|
*
|
|
* We put these *after* the entries for the LINKTYPE_ values for
|
|
* those Wiretap encapsulation types, so that, when writing a
|
|
* pcap or pcap-ng file, Wireshark writes the LINKTYPE_ value,
|
|
* not the OS's DLT_ value, as the file's link-layer header type
|
|
* for pcap or the interface's link-layer header type.
|
|
*/
|
|
|
|
/*
|
|
* 11 is DLT_ATM_RFC1483 on most platforms; the only libpcaps I've
|
|
* seen that define anything other than DLT_ATM_RFC1483 as 11 are
|
|
* the BSD/OS one, which defines DLT_FR as 11, and libpcap 0.5,
|
|
* which define it as 100, mapping the kernel's value to 100, in
|
|
* an attempt to hide the different values used on different
|
|
* platforms.
|
|
*
|
|
* If this is a platform where DLT_FR is defined as 11, we
|
|
* don't handle 11 at all; otherwise, we handle it as
|
|
* DLT_ATM_RFC1483 (this means we'd misinterpret Frame Relay
|
|
* captures from BSD/OS if running on platforms other than BSD/OS,
|
|
* but
|
|
*
|
|
* 1) we don't yet support DLT_FR
|
|
*
|
|
* and
|
|
*
|
|
* 2) nothing short of a heuristic would let us interpret
|
|
* them correctly).
|
|
*/
|
|
#if defined(DLT_FR) && (DLT_FR == 11)
|
|
{ 11, WTAP_ENCAP_FRELAY },
|
|
#else
|
|
{ 11, WTAP_ENCAP_ATM_RFC1483 },
|
|
#endif
|
|
|
|
/*
|
|
* 12 is DLT_RAW on most platforms, but it's DLT_C_HDLC on
|
|
* BSD/OS, and DLT_LOOP on OpenBSD.
|
|
*
|
|
* We don't yet handle DLT_C_HDLC, but we can handle DLT_LOOP
|
|
* (it's just like DLT_NULL, only with the AF_ value in network
|
|
* rather than host byte order - Wireshark figures out the
|
|
* byte order from the data, so we don't care what byte order
|
|
* it's in), so if DLT_LOOP is defined as 12, interpret 12
|
|
* as WTAP_ENCAP_NULL, otherwise, unless DLT_C_HDLC is defined
|
|
* as 12, interpret it as WTAP_ENCAP_RAW_IP.
|
|
*/
|
|
#if defined(DLT_LOOP) && (DLT_LOOP == 12)
|
|
{ 12, WTAP_ENCAP_NULL },
|
|
#elif defined(DLT_C_HDLC) && (DLT_C_HDLC == 12)
|
|
/*
|
|
* Put entry for Cisco HDLC here.
|
|
* XXX - is this just WTAP_ENCAP_CHDLC, i.e. does the frame
|
|
* start with a 4-byte Cisco HDLC header?
|
|
*/
|
|
#else
|
|
{ 12, WTAP_ENCAP_RAW_IP },
|
|
#endif
|
|
|
|
/*
|
|
* 13 is DLT_SLIP_BSDOS on FreeBSD and NetBSD, but those OSes
|
|
* don't actually generate it. I infer that BSD/OS translates
|
|
* DLT_SLIP from the kernel BPF code to DLT_SLIP_BSDOS in
|
|
* libpcap, as the BSD/OS link-layer header is different;
|
|
* however, in BSD/OS, DLT_SLIP_BSDOS is 15.
|
|
*
|
|
* From this, I infer that there's no point in handling 13
|
|
* as DLT_SLIP_BSDOS.
|
|
*
|
|
* 13 is DLT_ATM_RFC1483 on BSD/OS.
|
|
*
|
|
* 13 is DLT_ENC in OpenBSD, which is, I suspect, some kind
|
|
* of decrypted IPsec traffic.
|
|
*
|
|
* We treat 13 as WTAP_ENCAP_ENC on all systems except those
|
|
* that define DLT_ATM_RFC1483 as 13 - presumably only
|
|
* BSD/OS does so - so that, on BSD/OS systems, we still
|
|
* treate 13 as WTAP_ENCAP_ATM_RFC1483, but, on all other
|
|
* systems, we can read OpenBSD DLT_ENC captures.
|
|
*/
|
|
#if defined(DLT_ATM_RFC1483) && (DLT_ATM_RFC1483 == 13)
|
|
{ 13, WTAP_ENCAP_ATM_RFC1483 },
|
|
#else
|
|
{ 13, WTAP_ENCAP_ENC },
|
|
#endif
|
|
|
|
/*
|
|
* 14 is DLT_PPP_BSDOS on FreeBSD and NetBSD, but those OSes
|
|
* don't actually generate it. I infer that BSD/OS translates
|
|
* DLT_PPP from the kernel BPF code to DLT_PPP_BSDOS in
|
|
* libpcap, as the BSD/OS link-layer header is different;
|
|
* however, in BSD/OS, DLT_PPP_BSDOS is 16.
|
|
*
|
|
* From this, I infer that there's no point in handling 14
|
|
* as DLT_PPP_BSDOS.
|
|
*
|
|
* 14 is DLT_RAW on BSD/OS and OpenBSD.
|
|
*/
|
|
{ 14, WTAP_ENCAP_RAW_IP },
|
|
|
|
/*
|
|
* 15 is:
|
|
*
|
|
* DLT_SLIP_BSDOS on BSD/OS;
|
|
*
|
|
* DLT_HIPPI on NetBSD;
|
|
*
|
|
* DLT_LANE8023 with Alexey Kuznetzov's patches for
|
|
* Linux libpcap;
|
|
*
|
|
* DLT_I4L_RAWIP with the ISDN4Linux patches for libpcap
|
|
* (and on SuSE 6.3);
|
|
*
|
|
* but we don't currently handle any of those.
|
|
*/
|
|
|
|
/*
|
|
* 16 is:
|
|
*
|
|
* DLT_PPP_BSDOS on BSD/OS;
|
|
*
|
|
* DLT_HDLC on NetBSD (Cisco HDLC);
|
|
*
|
|
* DLT_CIP with Alexey Kuznetzov's patches for
|
|
* Linux libpcap - this is WTAP_ENCAP_LINUX_ATM_CLIP;
|
|
*
|
|
* DLT_I4L_IP with the ISDN4Linux patches for libpcap
|
|
* (and on SuSE 6.3).
|
|
*/
|
|
#if defined(DLT_CIP) && (DLT_CIP == 16)
|
|
{ 16, WTAP_ENCAP_LINUX_ATM_CLIP },
|
|
#endif
|
|
#if defined(DLT_HDLC) && (DLT_HDLC == 16)
|
|
{ 16, WTAP_ENCAP_CHDLC },
|
|
#endif
|
|
|
|
/*
|
|
* 17 is DLT_LANE8023 in SuSE 6.3 libpcap; we don't currently
|
|
* handle it.
|
|
* It is also used as the PF (Packet Filter) logging format beginning
|
|
* with OpenBSD 3.0; we use 17 for PF logs unless DLT_LANE8023 is
|
|
* defined with the value 17.
|
|
*/
|
|
#if !defined(DLT_LANE8023) || (DLT_LANE8023 != 17)
|
|
{ 17, WTAP_ENCAP_OLD_PFLOG },
|
|
#endif
|
|
|
|
/*
|
|
* 18 is DLT_CIP in SuSE 6.3 libpcap; if it's the same as the
|
|
* DLT_CIP of 16 that the Alexey Kuznetzov patches for
|
|
* libpcap/tcpdump define, it's WTAP_ENCAP_LINUX_ATM_CLIP.
|
|
* I've not found any libpcap that uses it for any other purpose -
|
|
* hopefully nobody will do so in the future.
|
|
*/
|
|
{ 18, WTAP_ENCAP_LINUX_ATM_CLIP },
|
|
|
|
/*
|
|
* 19 is DLT_ATM_CLIP in the libpcap/tcpdump patches in the
|
|
* recent versions I've seen of the Linux ATM distribution;
|
|
* I've not yet found any libpcap that uses it for any other
|
|
* purpose - hopefully nobody will do so in the future.
|
|
*/
|
|
{ 19, WTAP_ENCAP_LINUX_ATM_CLIP },
|
|
|
|
/*
|
|
* To repeat:
|
|
*
|
|
* If you need a new encapsulation type for libpcap files, do
|
|
* *N*O*T* use *ANY* of the values listed here! I.e., do *NOT*
|
|
* add a new encapsulation type by changing an existing entry;
|
|
* leave the existing entries alone.
|
|
*
|
|
* Instead, send mail to tcpdump-workers@lists.tcpdump.org, asking
|
|
* for a new DLT_ value, and specifying the purpose of the new value.
|
|
* When you get the new DLT_ value, use that numerical value in
|
|
* the "linktype_value" field of "pcap_to_wtap_map[]".
|
|
*/
|
|
};
|
|
#define NUM_PCAP_ENCAPS (sizeof pcap_to_wtap_map / sizeof pcap_to_wtap_map[0])
|
|
|
|
int
|
|
wtap_pcap_encap_to_wtap_encap(int encap)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < NUM_PCAP_ENCAPS; i++) {
|
|
if (pcap_to_wtap_map[i].linktype_value == encap)
|
|
return pcap_to_wtap_map[i].wtap_encap_value;
|
|
}
|
|
return WTAP_ENCAP_UNKNOWN;
|
|
}
|
|
|
|
int
|
|
wtap_wtap_encap_to_pcap_encap(int encap)
|
|
{
|
|
unsigned int i;
|
|
|
|
switch (encap) {
|
|
|
|
case WTAP_ENCAP_FDDI:
|
|
case WTAP_ENCAP_FDDI_BITSWAPPED:
|
|
/*
|
|
* Special-case WTAP_ENCAP_FDDI and
|
|
* WTAP_ENCAP_FDDI_BITSWAPPED; both of them get mapped
|
|
* to DLT_FDDI (even though that may mean that the bit
|
|
* order in the FDDI MAC addresses is wrong; so it goes
|
|
* - libpcap format doesn't record the byte order,
|
|
* so that's not fixable).
|
|
*
|
|
* The pcap_to_wtap_map[] table will only have an
|
|
* entry for one of the above, which is why we have
|
|
* to special-case them.
|
|
*/
|
|
return 10; /* that's DLT_FDDI */
|
|
|
|
case WTAP_ENCAP_NETTL_FDDI:
|
|
/*
|
|
* This will discard the nettl information, as that's
|
|
* in the pseudo-header.
|
|
*
|
|
* XXX - what about Ethernet and Token Ring?
|
|
*/
|
|
return 10; /* that's DLT_FDDI */
|
|
|
|
case WTAP_ENCAP_FRELAY_WITH_PHDR:
|
|
/*
|
|
* This will discard the pseudo-header information.
|
|
*/
|
|
return 107;
|
|
|
|
case WTAP_ENCAP_IEEE_802_11_WITH_RADIO:
|
|
/*
|
|
* Map this to DLT_IEEE802_11, for now, even though
|
|
* that means the radio information will be lost.
|
|
* We should try to map those values to radiotap
|
|
* values and write this out as a radiotap file,
|
|
* if possible.
|
|
*/
|
|
return 105;
|
|
}
|
|
|
|
for (i = 0; i < NUM_PCAP_ENCAPS; i++) {
|
|
if (pcap_to_wtap_map[i].wtap_encap_value == encap)
|
|
return pcap_to_wtap_map[i].linktype_value;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
gboolean
|
|
wtap_encap_requires_phdr(int encap) {
|
|
if (
|
|
(encap == WTAP_ENCAP_ATM_PDUS) ||
|
|
(encap == WTAP_ENCAP_IRDA) ||
|
|
(encap == WTAP_ENCAP_MTP2_WITH_PHDR) ||
|
|
(encap == WTAP_ENCAP_LINUX_LAPD) ||
|
|
(encap == WTAP_ENCAP_SITA) ||
|
|
(encap == WTAP_ENCAP_ERF) ||
|
|
(encap == WTAP_ENCAP_I2C) ||
|
|
(encap == WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR) ||
|
|
(encap == WTAP_ENCAP_BLUETOOTH_LINUX_MONITOR) ||
|
|
(encap == WTAP_ENCAP_PPP_WITH_PHDR)
|
|
) {
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/*
|
|
* Various pseudo-headers that appear at the beginning of packet data.
|
|
*
|
|
* We represent them as sets of offsets, as they might not be aligned on
|
|
* an appropriate structure boundary in the buffer, and as that makes them
|
|
* independent of the way the compiler might align fields.
|
|
*/
|
|
|
|
/*
|
|
* The link-layer header on SunATM packets.
|
|
*/
|
|
#define SUNATM_FLAGS 0 /* destination and traffic type - 1 byte */
|
|
#define SUNATM_VPI 1 /* VPI - 1 byte */
|
|
#define SUNATM_VCI 2 /* VCI - 2 bytes */
|
|
#define SUNATM_LEN 4 /* length of the header */
|
|
|
|
/*
|
|
* The link-layer header on Nokia IPSO ATM packets.
|
|
*/
|
|
#define NOKIAATM_FLAGS 0 /* destination - 1 byte */
|
|
#define NOKIAATM_VPI 1 /* VPI - 1 byte */
|
|
#define NOKIAATM_VCI 2 /* VCI - 2 bytes */
|
|
#define NOKIAATM_LEN 4 /* length of the header */
|
|
|
|
/*
|
|
* The link-layer header on Nokia IPSO packets.
|
|
*/
|
|
#define NOKIA_LEN 4 /* length of the header */
|
|
|
|
/*
|
|
* The fake link-layer header of IrDA packets as introduced by Jean Tourrilhes
|
|
* to libpcap.
|
|
*/
|
|
#define IRDA_SLL_PKTTYPE_OFFSET 0 /* packet type - 2 bytes */
|
|
/* 12 unused bytes */
|
|
#define IRDA_SLL_PROTOCOL_OFFSET 14 /* protocol, should be ETH_P_LAPD - 2 bytes */
|
|
#define IRDA_SLL_LEN 16 /* length of the header */
|
|
|
|
/*
|
|
* A header containing additional MTP information.
|
|
*/
|
|
#define MTP2_SENT_OFFSET 0 /* 1 byte */
|
|
#define MTP2_ANNEX_A_USED_OFFSET 1 /* 1 byte */
|
|
#define MTP2_LINK_NUMBER_OFFSET 2 /* 2 bytes */
|
|
#define MTP2_HDR_LEN 4 /* length of the header */
|
|
|
|
/*
|
|
* A header containing additional SITA WAN information.
|
|
*/
|
|
#define SITA_FLAGS_OFFSET 0 /* 1 byte */
|
|
#define SITA_SIGNALS_OFFSET 1 /* 1 byte */
|
|
#define SITA_ERRORS1_OFFSET 2 /* 1 byte */
|
|
#define SITA_ERRORS2_OFFSET 3 /* 1 byte */
|
|
#define SITA_PROTO_OFFSET 4 /* 1 byte */
|
|
#define SITA_HDR_LEN 5 /* length of the header */
|
|
|
|
/*
|
|
* The fake link-layer header of LAPD packets.
|
|
*/
|
|
#ifndef ETH_P_LAPD
|
|
#define ETH_P_LAPD 0x0030
|
|
#endif
|
|
|
|
#define LAPD_SLL_PKTTYPE_OFFSET 0 /* packet type - 2 bytes */
|
|
#define LAPD_SLL_HATYPE_OFFSET 2 /* hardware address type - 2 bytes */
|
|
#define LAPD_SLL_HALEN_OFFSET 4 /* hardware address length - 2 bytes */
|
|
#define LAPD_SLL_ADDR_OFFSET 6 /* address - 8 bytes */
|
|
#define LAPD_SLL_PROTOCOL_OFFSET 14 /* protocol, should be ETH_P_LAPD - 2 bytes */
|
|
#define LAPD_SLL_LEN 16 /* length of the header */
|
|
|
|
/*
|
|
* The NFC LLCP per-packet header.
|
|
*/
|
|
#define LLCP_ADAPTER_OFFSET 0
|
|
#define LLCP_FLAGS_OFFSET 1
|
|
#define LLCP_HEADER_LEN 2
|
|
|
|
/*
|
|
* I2C link-layer on-disk format
|
|
*/
|
|
struct i2c_file_hdr {
|
|
guint8 bus;
|
|
guint8 flags[4];
|
|
};
|
|
|
|
static gboolean
|
|
pcap_read_sunatm_pseudoheader(FILE_T fh,
|
|
union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
guint8 atm_phdr[SUNATM_LEN];
|
|
int bytes_read;
|
|
guint8 vpi;
|
|
guint16 vci;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(atm_phdr, SUNATM_LEN, fh);
|
|
if (bytes_read != SUNATM_LEN) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
vpi = atm_phdr[SUNATM_VPI];
|
|
vci = pntoh16(&atm_phdr[SUNATM_VCI]);
|
|
|
|
switch (atm_phdr[SUNATM_FLAGS] & 0x0F) {
|
|
|
|
case 0x01: /* LANE */
|
|
pseudo_header->atm.aal = AAL_5;
|
|
pseudo_header->atm.type = TRAF_LANE;
|
|
break;
|
|
|
|
case 0x02: /* RFC 1483 LLC multiplexed traffic */
|
|
pseudo_header->atm.aal = AAL_5;
|
|
pseudo_header->atm.type = TRAF_LLCMX;
|
|
break;
|
|
|
|
case 0x05: /* ILMI */
|
|
pseudo_header->atm.aal = AAL_5;
|
|
pseudo_header->atm.type = TRAF_ILMI;
|
|
break;
|
|
|
|
case 0x06: /* Q.2931 */
|
|
pseudo_header->atm.aal = AAL_SIGNALLING;
|
|
pseudo_header->atm.type = TRAF_UNKNOWN;
|
|
break;
|
|
|
|
case 0x03: /* MARS (RFC 2022) */
|
|
pseudo_header->atm.aal = AAL_5;
|
|
pseudo_header->atm.type = TRAF_UNKNOWN;
|
|
break;
|
|
|
|
case 0x04: /* IFMP (Ipsilon Flow Management Protocol; see RFC 1954) */
|
|
pseudo_header->atm.aal = AAL_5;
|
|
pseudo_header->atm.type = TRAF_UNKNOWN; /* XXX - TRAF_IPSILON? */
|
|
break;
|
|
|
|
default:
|
|
/*
|
|
* Assume it's AAL5, unless it's VPI 0 and VCI 5, in which
|
|
* case assume it's AAL_SIGNALLING; we know nothing more
|
|
* about it.
|
|
*
|
|
* XXX - is this necessary? Or are we guaranteed that
|
|
* all signalling traffic has a type of 0x06?
|
|
*
|
|
* XXX - is this guaranteed to be AAL5? Or, if the type is
|
|
* 0x00 ("raw"), might it be non-AAL5 traffic?
|
|
*/
|
|
if (vpi == 0 && vci == 5)
|
|
pseudo_header->atm.aal = AAL_SIGNALLING;
|
|
else
|
|
pseudo_header->atm.aal = AAL_5;
|
|
pseudo_header->atm.type = TRAF_UNKNOWN;
|
|
break;
|
|
}
|
|
pseudo_header->atm.subtype = TRAF_ST_UNKNOWN;
|
|
|
|
pseudo_header->atm.vpi = vpi;
|
|
pseudo_header->atm.vci = vci;
|
|
pseudo_header->atm.channel = (atm_phdr[SUNATM_FLAGS] & 0x80) ? 0 : 1;
|
|
|
|
/* We don't have this information */
|
|
pseudo_header->atm.flags = 0;
|
|
pseudo_header->atm.cells = 0;
|
|
pseudo_header->atm.aal5t_u2u = 0;
|
|
pseudo_header->atm.aal5t_len = 0;
|
|
pseudo_header->atm.aal5t_chksum = 0;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_nokiaatm_pseudoheader(FILE_T fh,
|
|
union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
guint8 atm_phdr[NOKIAATM_LEN];
|
|
int bytes_read;
|
|
guint8 vpi;
|
|
guint16 vci;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(atm_phdr, NOKIAATM_LEN, fh);
|
|
if (bytes_read != NOKIAATM_LEN) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
vpi = atm_phdr[NOKIAATM_VPI];
|
|
vci = pntoh16(&atm_phdr[NOKIAATM_VCI]);
|
|
|
|
pseudo_header->atm.vpi = vpi;
|
|
pseudo_header->atm.vci = vci;
|
|
pseudo_header->atm.channel = (atm_phdr[NOKIAATM_FLAGS] & 0x80) ? 0 : 1;
|
|
|
|
/* We don't have this information */
|
|
pseudo_header->atm.flags = 0;
|
|
pseudo_header->atm.cells = 0;
|
|
pseudo_header->atm.aal5t_u2u = 0;
|
|
pseudo_header->atm.aal5t_len = 0;
|
|
pseudo_header->atm.aal5t_chksum = 0;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_nokia_pseudoheader(FILE_T fh,
|
|
union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
guint8 phdr[NOKIA_LEN];
|
|
int bytes_read;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
|
|
/* backtrack to read the 4 mysterious bytes that aren't considered
|
|
* part of the packet size
|
|
*/
|
|
if (file_seek(fh, -NOKIA_LEN, SEEK_CUR, err) == -1)
|
|
{
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
bytes_read = file_read(phdr, NOKIA_LEN, fh);
|
|
if (bytes_read != NOKIA_LEN) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
memcpy(pseudo_header->nokia.stuff, phdr, NOKIA_LEN);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_irda_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header,
|
|
int *err, gchar **err_info)
|
|
{
|
|
guint8 irda_phdr[IRDA_SLL_LEN];
|
|
int bytes_read;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(irda_phdr, IRDA_SLL_LEN, fh);
|
|
if (bytes_read != IRDA_SLL_LEN) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
if (pntoh16(&irda_phdr[IRDA_SLL_PROTOCOL_OFFSET]) != 0x0017) {
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
if (err_info != NULL)
|
|
*err_info = g_strdup("libpcap: IrDA capture has a packet with an invalid sll_protocol field");
|
|
return FALSE;
|
|
}
|
|
|
|
pseudo_header->irda.pkttype = pntoh16(&irda_phdr[IRDA_SLL_PKTTYPE_OFFSET]);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_mtp2_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
guint8 mtp2_hdr[MTP2_HDR_LEN];
|
|
int bytes_read;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(mtp2_hdr, MTP2_HDR_LEN, fh);
|
|
if (bytes_read != MTP2_HDR_LEN) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
pseudo_header->mtp2.sent = mtp2_hdr[MTP2_SENT_OFFSET];
|
|
pseudo_header->mtp2.annex_a_used = mtp2_hdr[MTP2_ANNEX_A_USED_OFFSET];
|
|
pseudo_header->mtp2.link_number = pntoh16(&mtp2_hdr[MTP2_LINK_NUMBER_OFFSET]);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_lapd_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header,
|
|
int *err, gchar **err_info)
|
|
{
|
|
guint8 lapd_phdr[LAPD_SLL_LEN];
|
|
int bytes_read;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(lapd_phdr, LAPD_SLL_LEN, fh);
|
|
if (bytes_read != LAPD_SLL_LEN) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
if (pntoh16(&lapd_phdr[LAPD_SLL_PROTOCOL_OFFSET]) != ETH_P_LAPD) {
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
if (err_info != NULL)
|
|
*err_info = g_strdup("libpcap: LAPD capture has a packet with an invalid sll_protocol field");
|
|
return FALSE;
|
|
}
|
|
|
|
pseudo_header->lapd.pkttype = pntoh16(&lapd_phdr[LAPD_SLL_PKTTYPE_OFFSET]);
|
|
pseudo_header->lapd.we_network = !!lapd_phdr[LAPD_SLL_ADDR_OFFSET+0];
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_sita_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
guint8 sita_phdr[SITA_HDR_LEN];
|
|
int bytes_read;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(sita_phdr, SITA_HDR_LEN, fh);
|
|
if (bytes_read != SITA_HDR_LEN) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
pseudo_header->sita.sita_flags = sita_phdr[SITA_FLAGS_OFFSET];
|
|
pseudo_header->sita.sita_signals = sita_phdr[SITA_SIGNALS_OFFSET];
|
|
pseudo_header->sita.sita_errors1 = sita_phdr[SITA_ERRORS1_OFFSET];
|
|
pseudo_header->sita.sita_errors2 = sita_phdr[SITA_ERRORS2_OFFSET];
|
|
pseudo_header->sita.sita_proto = sita_phdr[SITA_PROTO_OFFSET];
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* When not using the memory-mapped interface to capture USB events,
|
|
* code that reads those events can use the MON_IOCX_GET ioctl to
|
|
* read a 48-byte header consisting of a "struct linux_usb_phdr", as
|
|
* defined below, followed immediately by one of:
|
|
*
|
|
* 8 bytes of a "struct usb_device_setup_hdr", if "setup_flag"
|
|
* in the preceding "struct linux_usb_phdr" is 0;
|
|
*
|
|
* in Linux 2.6.30 or later, 8 bytes of a "struct iso_rec", if
|
|
* this is an isochronous transfer;
|
|
*
|
|
* 8 bytes of junk, otherwise.
|
|
*
|
|
* In Linux 2.6.31 and later, it can also use the MON_IOCX_GETX ioctl
|
|
* to read a 64-byte header; that header consists of the 48 bytes
|
|
* above, followed immediately by 16 bytes of a "struct linux_usb_phdr_ext",
|
|
* as defined below.
|
|
*
|
|
* In Linux 2.6.21 and later, there's a memory-mapped interface to
|
|
* capture USB events. In that interface, the events in the memory-mapped
|
|
* buffer have a 64-byte header, followed immediately by the data.
|
|
* In Linux 2.6.21 through 2.6.30.x, the 64-byte header is the 48-byte
|
|
* header described above, followed by 16 bytes of zeroes; in Linux
|
|
* 2.6.31 and later, the 64-byte header is the 64-byte header described
|
|
* above.
|
|
*
|
|
* See linux/Documentation/usb/usbmon.txt and libpcap/pcap/usb.h for details.
|
|
*
|
|
* With WTAP_ENCAP_USB_LINUX, packets have the 48-byte header; with
|
|
* WTAP_ENCAP_USB_LINUX_MMAPPED, they have the 64-byte header. There
|
|
* is no indication of whether the header has the "struct iso_rec", or
|
|
* whether the last 16 bytes of a 64-byte header are all zeros or are
|
|
* a "struct linux_usb_phdr_ext".
|
|
*/
|
|
|
|
/*
|
|
* URB transfer_type values
|
|
*/
|
|
#define URB_ISOCHRONOUS 0x0
|
|
#define URB_INTERRUPT 0x1
|
|
#define URB_CONTROL 0x2
|
|
#define URB_BULK 0x3
|
|
|
|
/*
|
|
* Information from the URB for Isochronous transfers.
|
|
*
|
|
* This structure is 8 bytes long.
|
|
*/
|
|
struct iso_rec {
|
|
gint32 error_count;
|
|
gint32 numdesc;
|
|
};
|
|
|
|
/*
|
|
* Header prepended by Linux kernel to each USB event.
|
|
*
|
|
* (Setup flag is '-', 'D', 'Z', or 0. Data flag is '<', '>', 'Z', or 0.)
|
|
*
|
|
* The values are in *host* byte order.
|
|
*/
|
|
struct linux_usb_phdr {
|
|
guint64 id; /* urb id, to link submission and completion events */
|
|
guint8 event_type; /* Submit ('S'), Completed ('C'), Error ('E') */
|
|
guint8 transfer_type; /* ISO (0), Intr, Control, Bulk (3) */
|
|
guint8 endpoint_number; /* Endpoint number (0-15) and transfer direction */
|
|
guint8 device_address; /* 0-127 */
|
|
guint16 bus_id;
|
|
gint8 setup_flag; /* 0, if the urb setup header is meaningful */
|
|
gint8 data_flag; /* 0, if urb data is present */
|
|
gint64 ts_sec;
|
|
gint32 ts_usec;
|
|
gint32 status;
|
|
guint32 urb_len; /* whole len of urb this event refers to */
|
|
guint32 data_len; /* amount of urb data really present in this event */
|
|
|
|
/*
|
|
* Packet-type-dependent data.
|
|
* USB setup information of setup_flag is true.
|
|
* Otherwise, some isochronous transfer information.
|
|
*/
|
|
union {
|
|
guint8 data[8];
|
|
struct iso_rec iso;
|
|
} s;
|
|
|
|
/*
|
|
* This data is provided by Linux 2.6.31 and later kernels.
|
|
*
|
|
* For WTAP_ENCAP_USB_LINUX, it's not in the pseudo-header, so
|
|
* the pseudo-header is always 48 bytes long, including the
|
|
* packet-type-dependent data.
|
|
*
|
|
* For WTAP_ENCAP_USB_LINUX_MMAPPED, the pseudo-header is always
|
|
* 64 bytes long, with the packet-type-dependent data preceding
|
|
* these last 16 bytes. In pre-2.6.31 kernels, it's zero padding;
|
|
* in 2.6.31 and later, it's the following data.
|
|
*/
|
|
gint32 interval; /* only for Interrupt and Isochronous events */
|
|
gint32 start_frame; /* for Isochronous */
|
|
guint32 xfer_flags; /* copy of URB's transfer_flags */
|
|
guint32 ndesc; /* actual number of isochronous descriptors */
|
|
};
|
|
|
|
struct linux_usb_isodesc {
|
|
gint32 iso_status;
|
|
guint32 iso_off;
|
|
guint32 iso_len;
|
|
guint32 _pad;
|
|
};
|
|
|
|
/*
|
|
* USB setup header as defined in USB specification
|
|
* See usb_20.pdf, Chapter 9.3 'USB Device Requests' for details.
|
|
* http://www.usb.org/developers/docs/usb_20_122909-2.zip
|
|
*
|
|
* This structure is 8 bytes long.
|
|
*/
|
|
struct usb_device_setup_hdr {
|
|
gint8 bmRequestType;
|
|
guint8 bRequest;
|
|
guint16 wValue;
|
|
guint16 wIndex;
|
|
guint16 wLength;
|
|
};
|
|
|
|
|
|
/*
|
|
* Offset of the *end* of a field within a particular structure.
|
|
*/
|
|
#define END_OFFSETOF(basep, fieldp) \
|
|
(((char *)(void *)(fieldp)) - ((char *)(void *)(basep)) + \
|
|
sizeof(*fieldp))
|
|
|
|
/*
|
|
* Is that offset within the bounds of the packet?
|
|
*/
|
|
#define WITHIN_PACKET(basep, fieldp) \
|
|
(packet_size >= END_OFFSETOF((basep), (fieldp)))
|
|
|
|
#define CHECK_AND_SWAP16(fieldp) \
|
|
{ \
|
|
if (!WITHIN_PACKET(usb_phdr, fieldp)) \
|
|
return; \
|
|
PBSWAP16((guint8 *)fieldp); \
|
|
}
|
|
|
|
#define CHECK_AND_SWAP32(fieldp) \
|
|
{ \
|
|
if (!WITHIN_PACKET(usb_phdr, fieldp)) \
|
|
return; \
|
|
PBSWAP32((guint8 *)fieldp); \
|
|
}
|
|
|
|
#define CHECK_AND_SWAP64(fieldp) \
|
|
{ \
|
|
if (!WITHIN_PACKET(usb_phdr, fieldp)) \
|
|
return; \
|
|
PBSWAP64((guint8 *)fieldp); \
|
|
}
|
|
|
|
static void
|
|
pcap_byteswap_linux_usb_pseudoheader(struct wtap_pkthdr *phdr, guint8 *pd,
|
|
gboolean header_len_64_bytes)
|
|
{
|
|
guint packet_size;
|
|
struct linux_usb_phdr *usb_phdr;
|
|
struct linux_usb_isodesc *pisodesc;
|
|
gint32 iso_numdesc, i;
|
|
|
|
/*
|
|
* Minimum of captured and actual length (just in case the
|
|
* actual length < the captured length, which Should Never
|
|
* Happen).
|
|
*/
|
|
packet_size = phdr->caplen;
|
|
if (packet_size > phdr->len)
|
|
packet_size = phdr->len;
|
|
|
|
/*
|
|
* Greasy hack, but we never directly dereference any of
|
|
* the fields in *usb_phdr, we just get offsets of and
|
|
* addresses of its members and byte-swap it with a
|
|
* byte-at-a-time macro, so it's alignment-safe.
|
|
*/
|
|
usb_phdr = (struct linux_usb_phdr *)(void *)pd;
|
|
|
|
CHECK_AND_SWAP64(&usb_phdr->id);
|
|
CHECK_AND_SWAP16(&usb_phdr->bus_id);
|
|
CHECK_AND_SWAP64(&usb_phdr->ts_sec);
|
|
CHECK_AND_SWAP32(&usb_phdr->ts_usec);
|
|
CHECK_AND_SWAP32(&usb_phdr->status);
|
|
CHECK_AND_SWAP32(&usb_phdr->urb_len);
|
|
CHECK_AND_SWAP32(&usb_phdr->data_len);
|
|
|
|
if (usb_phdr->transfer_type == URB_ISOCHRONOUS) {
|
|
CHECK_AND_SWAP32(&usb_phdr->s.iso.error_count);
|
|
CHECK_AND_SWAP32(&usb_phdr->s.iso.numdesc);
|
|
}
|
|
|
|
if (header_len_64_bytes) {
|
|
/*
|
|
* This is either the "version 1" header, with
|
|
* 16 bytes of additional fields at the end, or
|
|
* a "version 0" header from a memory-mapped
|
|
* capture, with 16 bytes of zeroed-out padding
|
|
* at the end. Byte swap them as if this were
|
|
* a "version 1" header.
|
|
*
|
|
* Yes, the first argument to END_OFFSETOF() should
|
|
* be usb_phdr, not usb_phdr_ext; we want the offset of
|
|
* the additional fields from the beginning of
|
|
* the packet.
|
|
*/
|
|
CHECK_AND_SWAP32(&usb_phdr->interval);
|
|
CHECK_AND_SWAP32(&usb_phdr->start_frame);
|
|
CHECK_AND_SWAP32(&usb_phdr->xfer_flags);
|
|
CHECK_AND_SWAP32(&usb_phdr->ndesc);
|
|
}
|
|
|
|
if (usb_phdr->transfer_type == URB_ISOCHRONOUS) {
|
|
/* swap the values in struct linux_usb_isodesc */
|
|
|
|
/*
|
|
* See previous "Greasy hack" comment.
|
|
*/
|
|
if (header_len_64_bytes) {
|
|
pisodesc = (struct linux_usb_isodesc*)(void *)(pd + 64);
|
|
} else {
|
|
pisodesc = (struct linux_usb_isodesc*)(void *)(pd + 48);
|
|
}
|
|
iso_numdesc = usb_phdr->s.iso.numdesc;
|
|
for (i = 0; i < iso_numdesc; i++) {
|
|
CHECK_AND_SWAP32(&pisodesc->iso_status);
|
|
CHECK_AND_SWAP32(&pisodesc->iso_off);
|
|
CHECK_AND_SWAP32(&pisodesc->iso_len);
|
|
CHECK_AND_SWAP32(&pisodesc->_pad);
|
|
|
|
pisodesc++;
|
|
}
|
|
}
|
|
}
|
|
|
|
struct nflog_hdr {
|
|
guint8 nflog_family; /* address family */
|
|
guint8 nflog_version; /* version */
|
|
guint16 nflog_rid; /* resource ID */
|
|
};
|
|
|
|
struct nflog_tlv {
|
|
guint16 tlv_length; /* tlv length */
|
|
guint16 tlv_type; /* tlv type */
|
|
/* value follows this */
|
|
};
|
|
|
|
static void
|
|
pcap_byteswap_nflog_pseudoheader(struct wtap_pkthdr *phdr, guint8 *pd)
|
|
{
|
|
guint packet_size;
|
|
guint8 *p;
|
|
struct nflog_hdr *nfhdr;
|
|
struct nflog_tlv *tlv;
|
|
guint size;
|
|
|
|
/*
|
|
* Minimum of captured and actual length (just in case the
|
|
* actual length < the captured length, which Should Never
|
|
* Happen).
|
|
*/
|
|
packet_size = phdr->caplen;
|
|
if (packet_size > phdr->len)
|
|
packet_size = phdr->len;
|
|
|
|
if (packet_size < sizeof(struct nflog_hdr)) {
|
|
/* Not enough data to have any TLVs. */
|
|
return;
|
|
}
|
|
|
|
p = pd;
|
|
nfhdr = (struct nflog_hdr *)pd;
|
|
if (!(nfhdr->nflog_version) == 0) {
|
|
/* Unknown NFLOG version */
|
|
return;
|
|
}
|
|
|
|
packet_size -= (guint)sizeof(struct nflog_hdr);
|
|
p += sizeof(struct nflog_hdr);
|
|
|
|
while (packet_size >= sizeof(struct nflog_tlv)) {
|
|
tlv = (struct nflog_tlv *) p;
|
|
|
|
/* Swap the type and length. */
|
|
PBSWAP16((guint8 *)&tlv->tlv_type);
|
|
PBSWAP16((guint8 *)&tlv->tlv_length);
|
|
|
|
/* Get the length of the TLV. */
|
|
size = tlv->tlv_length;
|
|
if (size % 4 != 0)
|
|
size += 4 - size % 4;
|
|
|
|
/* Is the TLV's length less than the minimum? */
|
|
if (size < sizeof(struct nflog_tlv)) {
|
|
/* Yes. Give up now. */
|
|
return;
|
|
}
|
|
|
|
/* Do we have enough data for the full TLV? */
|
|
if (packet_size < size) {
|
|
/* No. */
|
|
return;
|
|
}
|
|
|
|
/* Skip over the TLV. */
|
|
packet_size -= size;
|
|
p += size;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_bt_pseudoheader(FILE_T fh,
|
|
union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
int bytes_read;
|
|
struct libpcap_bt_phdr phdr;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(&phdr,
|
|
sizeof (struct libpcap_bt_phdr), fh);
|
|
if (bytes_read != sizeof (struct libpcap_bt_phdr)) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
pseudo_header->p2p.sent = ((g_ntohl(phdr.direction) & LIBPCAP_BT_PHDR_RECV) == 0)? TRUE: FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_bt_monitor_pseudoheader(FILE_T fh,
|
|
union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
int bytes_read;
|
|
struct libpcap_bt_monitor_phdr phdr;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(&phdr,
|
|
sizeof (struct libpcap_bt_monitor_phdr), fh);
|
|
if (bytes_read != sizeof (struct libpcap_bt_monitor_phdr)) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
pseudo_header->btmon.adapter_id = g_ntohs(phdr.adapter_id);
|
|
pseudo_header->btmon.opcode = g_ntohs(phdr.opcode);
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_llcp_pseudoheader(FILE_T fh,
|
|
union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
int bytes_read;
|
|
guint8 phdr[LLCP_HEADER_LEN];
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(phdr, LLCP_HEADER_LEN, fh);
|
|
if (bytes_read != LLCP_HEADER_LEN) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
pseudo_header->llcp.adapter = phdr[LLCP_ADAPTER_OFFSET];
|
|
pseudo_header->llcp.flags = phdr[LLCP_FLAGS_OFFSET];
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_ppp_pseudoheader(FILE_T fh,
|
|
union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
int bytes_read;
|
|
struct libpcap_ppp_phdr phdr;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(&phdr,
|
|
sizeof (struct libpcap_ppp_phdr), fh);
|
|
if (bytes_read != sizeof (struct libpcap_ppp_phdr)) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
pseudo_header->p2p.sent = (phdr.direction == LIBPCAP_PPP_PHDR_SENT) ? TRUE: FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_erf_pseudoheader(FILE_T fh, struct wtap_pkthdr *whdr,
|
|
union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
guint8 erf_hdr[sizeof(struct erf_phdr)];
|
|
int bytes_read;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(erf_hdr, sizeof(struct erf_phdr), fh);
|
|
if (bytes_read != sizeof(struct erf_phdr)) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
pseudo_header->erf.phdr.ts = pletoh64(&erf_hdr[0]); /* timestamp */
|
|
pseudo_header->erf.phdr.type = erf_hdr[8];
|
|
pseudo_header->erf.phdr.flags = erf_hdr[9];
|
|
pseudo_header->erf.phdr.rlen = pntoh16(&erf_hdr[10]);
|
|
pseudo_header->erf.phdr.lctr = pntoh16(&erf_hdr[12]);
|
|
pseudo_header->erf.phdr.wlen = pntoh16(&erf_hdr[14]);
|
|
|
|
/* The high 32 bits of the timestamp contain the integer number of seconds
|
|
* while the lower 32 bits contain the binary fraction of the second.
|
|
* This allows an ultimate resolution of 1/(2^32) seconds, or approximately 233 picoseconds */
|
|
if (whdr) {
|
|
guint64 ts = pseudo_header->erf.phdr.ts;
|
|
whdr->ts.secs = (guint32) (ts >> 32);
|
|
ts = ((ts & 0xffffffff) * 1000 * 1000 * 1000);
|
|
ts += (ts & 0x80000000) << 1; /* rounding */
|
|
whdr->ts.nsecs = ((guint32) (ts >> 32));
|
|
if ( whdr->ts.nsecs >= 1000000000) {
|
|
whdr->ts.nsecs -= 1000000000;
|
|
whdr->ts.secs += 1;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* If the type of record given in the pseudo header indicate the presence of an extension
|
|
* header then, read all the extension headers
|
|
*/
|
|
static gboolean
|
|
pcap_read_erf_exheader(FILE_T fh, union wtap_pseudo_header *pseudo_header,
|
|
int *err, gchar **err_info, guint * psize)
|
|
{
|
|
int bytes_read = 0;
|
|
guint8 erf_exhdr[8];
|
|
guint64 erf_exhdr_sw;
|
|
int i = 0, max = sizeof(pseudo_header->erf.ehdr_list)/sizeof(struct erf_ehdr);
|
|
guint8 type;
|
|
*psize = 0;
|
|
if (pseudo_header->erf.phdr.type & 0x80){
|
|
do{
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(erf_exhdr, 8, fh);
|
|
if (bytes_read != 8 ) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
type = erf_exhdr[0];
|
|
erf_exhdr_sw = pntoh64(erf_exhdr);
|
|
if (i < max)
|
|
memcpy(&pseudo_header->erf.ehdr_list[i].ehdr, &erf_exhdr_sw, sizeof(erf_exhdr_sw));
|
|
*psize += 8;
|
|
i++;
|
|
} while (type & 0x80);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* If the type of record given in the pseudo header indicate the precense of a subheader
|
|
* then, read this optional subheader
|
|
*/
|
|
static gboolean
|
|
pcap_read_erf_subheader(FILE_T fh, union wtap_pseudo_header *pseudo_header,
|
|
int *err, gchar **err_info, guint * psize)
|
|
{
|
|
guint8 erf_subhdr[sizeof(union erf_subhdr)];
|
|
int bytes_read;
|
|
|
|
*psize=0;
|
|
switch(pseudo_header->erf.phdr.type & 0x7F) {
|
|
case ERF_TYPE_MC_HDLC:
|
|
case ERF_TYPE_MC_RAW:
|
|
case ERF_TYPE_MC_ATM:
|
|
case ERF_TYPE_MC_RAW_CHANNEL:
|
|
case ERF_TYPE_MC_AAL5:
|
|
case ERF_TYPE_MC_AAL2:
|
|
case ERF_TYPE_COLOR_MC_HDLC_POS:
|
|
/* Extract the Multi Channel header to include it in the pseudo header part */
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(erf_subhdr, sizeof(erf_mc_header_t), fh);
|
|
if (bytes_read != sizeof(erf_mc_header_t) ) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
pseudo_header->erf.subhdr.mc_hdr = pntoh32(&erf_subhdr[0]);
|
|
*psize = sizeof(erf_mc_header_t);
|
|
break;
|
|
case ERF_TYPE_ETH:
|
|
case ERF_TYPE_COLOR_ETH:
|
|
case ERF_TYPE_DSM_COLOR_ETH:
|
|
/* Extract the Ethernet additional header to include it in the pseudo header part */
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(erf_subhdr, sizeof(erf_eth_header_t), fh);
|
|
if (bytes_read != sizeof(erf_eth_header_t) ) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
pseudo_header->erf.subhdr.eth_hdr = pntoh16(&erf_subhdr[0]);
|
|
*psize = sizeof(erf_eth_header_t);
|
|
break;
|
|
default:
|
|
/* No optional pseudo header for this ERF type */
|
|
break;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pcap_read_i2c_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info)
|
|
{
|
|
struct i2c_file_hdr i2c_hdr;
|
|
int bytes_read;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(&i2c_hdr, sizeof (i2c_hdr), fh);
|
|
if (bytes_read != sizeof (i2c_hdr)) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
pseudo_header->i2c.is_event = i2c_hdr.bus & 0x80 ? 1 : 0;
|
|
pseudo_header->i2c.bus = i2c_hdr.bus & 0x7f;
|
|
pseudo_header->i2c.flags = pntoh32(&i2c_hdr.flags);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
pcap_process_pseudo_header(FILE_T fh, int file_type, int wtap_encap,
|
|
guint packet_size, gboolean check_packet_size,
|
|
struct wtap_pkthdr *phdr, int *err, gchar **err_info)
|
|
{
|
|
int phdr_len = 0;
|
|
guint size;
|
|
|
|
switch (wtap_encap) {
|
|
|
|
case WTAP_ENCAP_ATM_PDUS:
|
|
if (file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP_NOKIA) {
|
|
/*
|
|
* Nokia IPSO ATM.
|
|
*/
|
|
if (check_packet_size && packet_size < NOKIAATM_LEN) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: Nokia IPSO ATM file has a %u-byte packet, too small to have even an ATM pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_nokiaatm_pseudoheader(fh,
|
|
&phdr->pseudo_header, err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = NOKIAATM_LEN;
|
|
} else {
|
|
/*
|
|
* SunATM.
|
|
*/
|
|
if (check_packet_size && packet_size < SUNATM_LEN) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: SunATM file has a %u-byte packet, too small to have even an ATM pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_sunatm_pseudoheader(fh,
|
|
&phdr->pseudo_header, err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = SUNATM_LEN;
|
|
}
|
|
break;
|
|
|
|
case WTAP_ENCAP_ETHERNET:
|
|
if (file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP_NOKIA) {
|
|
/*
|
|
* Nokia IPSO. Psuedo header has already been read, but it's not considered
|
|
* part of the packet size, so reread it to store the data for later (when saving)
|
|
*/
|
|
if (!pcap_read_nokia_pseudoheader(fh, &phdr->pseudo_header, err, err_info))
|
|
return -1; /* Read error */
|
|
}
|
|
|
|
/*
|
|
* We don't know whether there's an FCS in this frame or not.
|
|
*/
|
|
phdr->pseudo_header.eth.fcs_len = -1;
|
|
break;
|
|
|
|
case WTAP_ENCAP_IEEE_802_11:
|
|
case WTAP_ENCAP_IEEE_802_11_PRISM:
|
|
case WTAP_ENCAP_IEEE_802_11_RADIOTAP:
|
|
case WTAP_ENCAP_IEEE_802_11_AVS:
|
|
/*
|
|
* We don't know whether there's an FCS in this frame or not.
|
|
* XXX - are there any OSes where the capture mechanism
|
|
* supplies an FCS?
|
|
*/
|
|
phdr->pseudo_header.ieee_802_11.fcs_len = -1;
|
|
phdr->pseudo_header.ieee_802_11.decrypted = FALSE;
|
|
phdr->pseudo_header.ieee_802_11.channel = 0;
|
|
phdr->pseudo_header.ieee_802_11.data_rate = 0;
|
|
phdr->pseudo_header.ieee_802_11.signal_level = 0;
|
|
break;
|
|
|
|
case WTAP_ENCAP_IRDA:
|
|
if (check_packet_size && packet_size < IRDA_SLL_LEN) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: IrDA file has a %u-byte packet, too small to have even an IrDA pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_irda_pseudoheader(fh, &phdr->pseudo_header,
|
|
err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = IRDA_SLL_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_MTP2_WITH_PHDR:
|
|
if (check_packet_size && packet_size < MTP2_HDR_LEN) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: MTP2 file has a %u-byte packet, too small to have even an MTP2 pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_mtp2_pseudoheader(fh, &phdr->pseudo_header,
|
|
err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = MTP2_HDR_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_LINUX_LAPD:
|
|
if (check_packet_size && packet_size < LAPD_SLL_LEN) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: LAPD file has a %u-byte packet, too small to have even a LAPD pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_lapd_pseudoheader(fh, &phdr->pseudo_header,
|
|
err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = LAPD_SLL_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_SITA:
|
|
if (check_packet_size && packet_size < SITA_HDR_LEN) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: SITA file has a %u-byte packet, too small to have even a SITA pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_sita_pseudoheader(fh, &phdr->pseudo_header,
|
|
err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = SITA_HDR_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_BLUETOOTH_H4:
|
|
/* We don't have pseudoheader, so just pretend we received everything. */
|
|
phdr->pseudo_header.p2p.sent = FALSE;
|
|
break;
|
|
|
|
case WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR:
|
|
if (check_packet_size &&
|
|
packet_size < sizeof (struct libpcap_bt_phdr)) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: libpcap bluetooth file has a %u-byte packet, too small to have even a pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_bt_pseudoheader(fh,
|
|
&phdr->pseudo_header, err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = (int)sizeof (struct libpcap_bt_phdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_BLUETOOTH_LINUX_MONITOR:
|
|
if (check_packet_size &&
|
|
packet_size < sizeof (struct libpcap_bt_monitor_phdr)) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: libpcap bluetooth monitor file has a %u-byte packet, too small to have even a pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_bt_monitor_pseudoheader(fh,
|
|
&phdr->pseudo_header, err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = (int)sizeof (struct libpcap_bt_monitor_phdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_NFC_LLCP:
|
|
if (check_packet_size && packet_size < LLCP_HEADER_LEN) {
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: libpcap llcp file too short");
|
|
return -1;
|
|
}
|
|
if (!pcap_read_llcp_pseudoheader(fh, &phdr->pseudo_header, err, err_info))
|
|
return -1; /* Read error */
|
|
phdr_len = LLCP_HEADER_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_PPP_WITH_PHDR:
|
|
if (check_packet_size &&
|
|
packet_size < sizeof (struct libpcap_ppp_phdr)) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: libpcap ppp file has a %u-byte packet, too small to have even a pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_ppp_pseudoheader(fh,
|
|
&phdr->pseudo_header, err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = (int)sizeof (struct libpcap_ppp_phdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_ERF:
|
|
if (check_packet_size &&
|
|
packet_size < sizeof(struct erf_phdr) ) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: ERF file has a %u-byte packet, too small to have even an ERF pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
|
|
if (!pcap_read_erf_pseudoheader(fh, phdr, &phdr->pseudo_header,
|
|
err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len = (int)sizeof(struct erf_phdr);
|
|
|
|
/* check the optional Extension header */
|
|
if (!pcap_read_erf_exheader(fh, &phdr->pseudo_header, err, err_info,
|
|
&size))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len += size;
|
|
|
|
/* check the optional Multi Channel header */
|
|
if (!pcap_read_erf_subheader(fh, &phdr->pseudo_header, err, err_info,
|
|
&size))
|
|
return -1; /* Read error */
|
|
|
|
phdr_len += size;
|
|
|
|
if (check_packet_size &&
|
|
packet_size < (guint)phdr_len) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough for the pseudo-
|
|
* header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*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)",
|
|
packet_size, phdr_len);
|
|
return -1;
|
|
}
|
|
break;
|
|
|
|
case WTAP_ENCAP_I2C:
|
|
if (check_packet_size &&
|
|
packet_size < sizeof (struct i2c_file_hdr)) {
|
|
/*
|
|
* Uh-oh, the packet isn't big enough to even
|
|
* have a pseudo-header.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("pcap: I2C file has a %u-byte packet, too small to have even a I2C pseudo-header",
|
|
packet_size);
|
|
return -1;
|
|
}
|
|
if (!pcap_read_i2c_pseudoheader(fh, &phdr->pseudo_header,
|
|
err, err_info))
|
|
return -1; /* Read error */
|
|
|
|
/*
|
|
* Don't count the pseudo-header as part of the packet.
|
|
*/
|
|
phdr_len = (int)sizeof (struct i2c_file_hdr);
|
|
break;
|
|
}
|
|
|
|
return phdr_len;
|
|
}
|
|
|
|
void
|
|
pcap_read_post_process(int file_type, int wtap_encap,
|
|
struct wtap_pkthdr *phdr, guint8 *pd, gboolean bytes_swapped, int fcs_len)
|
|
{
|
|
switch (wtap_encap) {
|
|
|
|
case WTAP_ENCAP_ATM_PDUS:
|
|
if (file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP_NOKIA) {
|
|
/*
|
|
* Nokia IPSO ATM.
|
|
*
|
|
* Guess the traffic type based on the packet
|
|
* contents.
|
|
*/
|
|
atm_guess_traffic_type(phdr, pd);
|
|
} else {
|
|
/*
|
|
* SunATM.
|
|
*
|
|
* If this is ATM LANE traffic, try to guess what
|
|
* type of LANE traffic it is based on the packet
|
|
* contents.
|
|
*/
|
|
if (phdr->pseudo_header.atm.type == TRAF_LANE)
|
|
atm_guess_lane_type(phdr, pd);
|
|
}
|
|
break;
|
|
|
|
case WTAP_ENCAP_ETHERNET:
|
|
phdr->pseudo_header.eth.fcs_len = fcs_len;
|
|
break;
|
|
|
|
case WTAP_ENCAP_USB_LINUX:
|
|
if (bytes_swapped)
|
|
pcap_byteswap_linux_usb_pseudoheader(phdr, pd, FALSE);
|
|
break;
|
|
|
|
case WTAP_ENCAP_USB_LINUX_MMAPPED:
|
|
if (bytes_swapped)
|
|
pcap_byteswap_linux_usb_pseudoheader(phdr, pd, TRUE);
|
|
break;
|
|
|
|
case WTAP_ENCAP_NETANALYZER:
|
|
/*
|
|
* Not strictly necessary, as the netANALYZER
|
|
* dissector calls the "Ethernet with FCS"
|
|
* dissector, but we might as well set it.
|
|
*/
|
|
phdr->pseudo_header.eth.fcs_len = 4;
|
|
break;
|
|
|
|
case WTAP_ENCAP_NFLOG:
|
|
if (bytes_swapped)
|
|
pcap_byteswap_nflog_pseudoheader(phdr, pd);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
int
|
|
pcap_get_phdr_size(int encap, const union wtap_pseudo_header *pseudo_header)
|
|
{
|
|
int hdrsize;
|
|
|
|
switch (encap) {
|
|
|
|
case WTAP_ENCAP_ATM_PDUS:
|
|
hdrsize = SUNATM_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_IRDA:
|
|
hdrsize = IRDA_SLL_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_MTP2_WITH_PHDR:
|
|
hdrsize = MTP2_HDR_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_LINUX_LAPD:
|
|
hdrsize = LAPD_SLL_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_SITA:
|
|
hdrsize = SITA_HDR_LEN;
|
|
break;
|
|
|
|
case WTAP_ENCAP_ERF:
|
|
hdrsize = (int)sizeof (struct erf_phdr);
|
|
switch (pseudo_header->erf.phdr.type & 0x7F) {
|
|
|
|
case ERF_TYPE_MC_HDLC:
|
|
case ERF_TYPE_MC_RAW:
|
|
case ERF_TYPE_MC_ATM:
|
|
case ERF_TYPE_MC_RAW_CHANNEL:
|
|
case ERF_TYPE_MC_AAL5:
|
|
case ERF_TYPE_MC_AAL2:
|
|
case ERF_TYPE_COLOR_MC_HDLC_POS:
|
|
hdrsize += (int)sizeof(struct erf_mc_hdr);
|
|
break;
|
|
|
|
case ERF_TYPE_ETH:
|
|
case ERF_TYPE_COLOR_ETH:
|
|
case ERF_TYPE_DSM_COLOR_ETH:
|
|
hdrsize += (int)sizeof(struct erf_eth_hdr);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Add in the lengths of the extension headers.
|
|
*/
|
|
if (pseudo_header->erf.phdr.type & 0x80) {
|
|
int i = 0, max = sizeof(pseudo_header->erf.ehdr_list)/sizeof(struct erf_ehdr);
|
|
guint8 erf_exhdr[8];
|
|
guint8 type;
|
|
|
|
do {
|
|
phtonll(erf_exhdr, pseudo_header->erf.ehdr_list[i].ehdr);
|
|
type = erf_exhdr[0];
|
|
hdrsize += 8;
|
|
i++;
|
|
} while (type & 0x80 && i < max);
|
|
}
|
|
break;
|
|
|
|
case WTAP_ENCAP_I2C:
|
|
hdrsize = (int)sizeof (struct i2c_file_hdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR:
|
|
hdrsize = (int)sizeof (struct libpcap_bt_phdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_PPP_WITH_PHDR:
|
|
hdrsize = (int)sizeof (struct libpcap_ppp_phdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_BLUETOOTH_LINUX_MONITOR:
|
|
hdrsize = (int)sizeof (struct libpcap_bt_monitor_phdr);
|
|
break;
|
|
|
|
default:
|
|
hdrsize = 0;
|
|
break;
|
|
}
|
|
|
|
return hdrsize;
|
|
}
|
|
|
|
gboolean
|
|
pcap_write_phdr(wtap_dumper *wdh, int encap, const union wtap_pseudo_header *pseudo_header,
|
|
int *err)
|
|
{
|
|
guint8 atm_hdr[SUNATM_LEN];
|
|
guint8 irda_hdr[IRDA_SLL_LEN];
|
|
guint8 lapd_hdr[LAPD_SLL_LEN];
|
|
guint8 mtp2_hdr[MTP2_HDR_LEN];
|
|
guint8 sita_hdr[SITA_HDR_LEN];
|
|
guint8 erf_hdr[ sizeof(struct erf_mc_phdr)];
|
|
struct i2c_file_hdr i2c_hdr;
|
|
struct libpcap_bt_phdr bt_hdr;
|
|
struct libpcap_bt_monitor_phdr bt_monitor_hdr;
|
|
struct libpcap_ppp_phdr ppp_hdr;
|
|
size_t size;
|
|
|
|
switch (encap) {
|
|
|
|
case WTAP_ENCAP_ATM_PDUS:
|
|
/*
|
|
* Write the ATM header.
|
|
*/
|
|
atm_hdr[SUNATM_FLAGS] =
|
|
(pseudo_header->atm.channel == 0) ? 0x80 : 0x00;
|
|
switch (pseudo_header->atm.aal) {
|
|
|
|
case AAL_SIGNALLING:
|
|
/* Q.2931 */
|
|
atm_hdr[SUNATM_FLAGS] |= 0x06;
|
|
break;
|
|
|
|
case AAL_5:
|
|
switch (pseudo_header->atm.type) {
|
|
|
|
case TRAF_LANE:
|
|
/* LANE */
|
|
atm_hdr[SUNATM_FLAGS] |= 0x01;
|
|
break;
|
|
|
|
case TRAF_LLCMX:
|
|
/* RFC 1483 LLC multiplexed traffic */
|
|
atm_hdr[SUNATM_FLAGS] |= 0x02;
|
|
break;
|
|
|
|
case TRAF_ILMI:
|
|
/* ILMI */
|
|
atm_hdr[SUNATM_FLAGS] |= 0x05;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
atm_hdr[SUNATM_VPI] = (guint8)pseudo_header->atm.vpi;
|
|
phtons(&atm_hdr[SUNATM_VCI], pseudo_header->atm.vci);
|
|
if (!wtap_dump_file_write(wdh, atm_hdr, sizeof(atm_hdr), err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += sizeof(atm_hdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_IRDA:
|
|
/*
|
|
* Write the IrDA header.
|
|
*/
|
|
memset(irda_hdr, 0, sizeof(irda_hdr));
|
|
phtons(&irda_hdr[IRDA_SLL_PKTTYPE_OFFSET],
|
|
pseudo_header->irda.pkttype);
|
|
phtons(&irda_hdr[IRDA_SLL_PROTOCOL_OFFSET], 0x0017);
|
|
if (!wtap_dump_file_write(wdh, irda_hdr, sizeof(irda_hdr), err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += sizeof(irda_hdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_MTP2_WITH_PHDR:
|
|
/*
|
|
* Write the MTP2 header.
|
|
*/
|
|
memset(&mtp2_hdr, 0, sizeof(mtp2_hdr));
|
|
mtp2_hdr[MTP2_SENT_OFFSET] = pseudo_header->mtp2.sent;
|
|
mtp2_hdr[MTP2_ANNEX_A_USED_OFFSET] = pseudo_header->mtp2.annex_a_used;
|
|
phtons(&mtp2_hdr[MTP2_LINK_NUMBER_OFFSET],
|
|
pseudo_header->mtp2.link_number);
|
|
if (!wtap_dump_file_write(wdh, mtp2_hdr, sizeof(mtp2_hdr), err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += sizeof(mtp2_hdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_LINUX_LAPD:
|
|
/*
|
|
* Write the LAPD header.
|
|
*/
|
|
memset(&lapd_hdr, 0, sizeof(lapd_hdr));
|
|
phtons(&lapd_hdr[LAPD_SLL_PKTTYPE_OFFSET],
|
|
pseudo_header->lapd.pkttype);
|
|
phtons(&lapd_hdr[LAPD_SLL_PROTOCOL_OFFSET], ETH_P_LAPD);
|
|
lapd_hdr[LAPD_SLL_ADDR_OFFSET + 0] =
|
|
pseudo_header->lapd.we_network?0x01:0x00;
|
|
if (!wtap_dump_file_write(wdh, lapd_hdr, sizeof(lapd_hdr), err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += sizeof(lapd_hdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_SITA:
|
|
/*
|
|
* Write the SITA header.
|
|
*/
|
|
memset(&sita_hdr, 0, sizeof(sita_hdr));
|
|
sita_hdr[SITA_FLAGS_OFFSET] = pseudo_header->sita.sita_flags;
|
|
sita_hdr[SITA_SIGNALS_OFFSET] = pseudo_header->sita.sita_signals;
|
|
sita_hdr[SITA_ERRORS1_OFFSET] = pseudo_header->sita.sita_errors1;
|
|
sita_hdr[SITA_ERRORS2_OFFSET] = pseudo_header->sita.sita_errors2;
|
|
sita_hdr[SITA_PROTO_OFFSET] = pseudo_header->sita.sita_proto;
|
|
if (!wtap_dump_file_write(wdh, sita_hdr, sizeof(sita_hdr), err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += sizeof(sita_hdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_ERF:
|
|
/*
|
|
* Write the ERF header.
|
|
*/
|
|
memset(&erf_hdr, 0, sizeof(erf_hdr));
|
|
phtolell(&erf_hdr[0], pseudo_header->erf.phdr.ts);
|
|
erf_hdr[8] = pseudo_header->erf.phdr.type;
|
|
erf_hdr[9] = pseudo_header->erf.phdr.flags;
|
|
phtons(&erf_hdr[10], pseudo_header->erf.phdr.rlen);
|
|
phtons(&erf_hdr[12], pseudo_header->erf.phdr.lctr);
|
|
phtons(&erf_hdr[14], pseudo_header->erf.phdr.wlen);
|
|
size = sizeof(struct erf_phdr);
|
|
|
|
switch(pseudo_header->erf.phdr.type & 0x7F) {
|
|
case ERF_TYPE_MC_HDLC:
|
|
case ERF_TYPE_MC_RAW:
|
|
case ERF_TYPE_MC_ATM:
|
|
case ERF_TYPE_MC_RAW_CHANNEL:
|
|
case ERF_TYPE_MC_AAL5:
|
|
case ERF_TYPE_MC_AAL2:
|
|
case ERF_TYPE_COLOR_MC_HDLC_POS:
|
|
phtonl(&erf_hdr[16], pseudo_header->erf.subhdr.mc_hdr);
|
|
size += (int)sizeof(struct erf_mc_hdr);
|
|
break;
|
|
case ERF_TYPE_ETH:
|
|
case ERF_TYPE_COLOR_ETH:
|
|
case ERF_TYPE_DSM_COLOR_ETH:
|
|
phtons(&erf_hdr[16], pseudo_header->erf.subhdr.eth_hdr);
|
|
size += (int)sizeof(struct erf_eth_hdr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (!wtap_dump_file_write(wdh, erf_hdr, size, err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += size;
|
|
|
|
/*
|
|
* Now write out the extension headers.
|
|
*/
|
|
if (pseudo_header->erf.phdr.type & 0x80) {
|
|
int i = 0, max = sizeof(pseudo_header->erf.ehdr_list)/sizeof(struct erf_ehdr);
|
|
guint8 erf_exhdr[8];
|
|
guint8 type;
|
|
|
|
do {
|
|
phtonll(erf_exhdr, pseudo_header->erf.ehdr_list[i].ehdr);
|
|
type = erf_exhdr[0];
|
|
if (!wtap_dump_file_write(wdh, erf_exhdr, 8, err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += 8;
|
|
i++;
|
|
} while (type & 0x80 && i < max);
|
|
}
|
|
break;
|
|
|
|
case WTAP_ENCAP_I2C:
|
|
/*
|
|
* Write the I2C header.
|
|
*/
|
|
memset(&i2c_hdr, 0, sizeof(i2c_hdr));
|
|
i2c_hdr.bus = pseudo_header->i2c.bus |
|
|
(pseudo_header->i2c.is_event ? 0x80 : 0x00);
|
|
phtonl((guint8 *)&i2c_hdr.flags, pseudo_header->i2c.flags);
|
|
if (!wtap_dump_file_write(wdh, &i2c_hdr, sizeof(i2c_hdr), err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += sizeof(i2c_hdr);
|
|
break;
|
|
|
|
case WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR:
|
|
bt_hdr.direction = GUINT32_TO_BE(pseudo_header->p2p.sent ? LIBPCAP_BT_PHDR_SENT : LIBPCAP_BT_PHDR_RECV);
|
|
if (!wtap_dump_file_write(wdh, &bt_hdr, sizeof bt_hdr, err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += sizeof bt_hdr;
|
|
break;
|
|
|
|
case WTAP_ENCAP_BLUETOOTH_LINUX_MONITOR:
|
|
bt_monitor_hdr.adapter_id = GUINT16_TO_BE(pseudo_header->btmon.adapter_id);
|
|
bt_monitor_hdr.opcode = GUINT16_TO_BE(pseudo_header->btmon.opcode);
|
|
|
|
if (!wtap_dump_file_write(wdh, &bt_monitor_hdr, sizeof bt_monitor_hdr, err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += sizeof bt_monitor_hdr;
|
|
break;
|
|
|
|
case WTAP_ENCAP_PPP_WITH_PHDR:
|
|
ppp_hdr.direction = (pseudo_header->p2p.sent ? LIBPCAP_PPP_PHDR_SENT : LIBPCAP_PPP_PHDR_RECV);
|
|
if (!wtap_dump_file_write(wdh, &ppp_hdr, sizeof ppp_hdr, err))
|
|
return FALSE;
|
|
wdh->bytes_dumped += sizeof ppp_hdr;
|
|
break;
|
|
}
|
|
return TRUE;
|
|
}
|