1999-01-18 21:34:54 +00:00
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/* netmon.c
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*
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2004-07-18 00:24:25 +00:00
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* $Id$
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1999-01-18 21:34:54 +00:00
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*
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* Wiretap Library
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2001-11-13 23:55:44 +00:00
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* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
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2002-08-28 20:30:45 +00:00
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*
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1999-01-18 21:34:54 +00:00
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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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2002-08-28 20:30:45 +00:00
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*
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1999-01-18 21:34:54 +00:00
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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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2002-08-28 20:30:45 +00:00
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*
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1999-01-18 21:34:54 +00:00
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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2002-02-27 08:57:25 +00:00
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1999-07-13 02:53:26 +00:00
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
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#include <errno.h>
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1999-12-04 06:21:45 +00:00
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#include <string.h>
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2000-05-19 23:07:04 +00:00
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#include "wtap-int.h"
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2000-01-13 07:09:20 +00:00
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#include "file_wrappers.h"
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1999-03-01 18:57:07 +00:00
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#include "buffer.h"
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2002-08-13 03:26:30 +00:00
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#include "atm.h"
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2010-07-18 20:27:46 +00:00
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#include "pcap-encap.h"
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1999-01-18 21:34:54 +00:00
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#include "netmon.h"
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2002-08-13 03:26:30 +00:00
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1999-01-18 21:34:54 +00:00
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/* The file at
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*
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* ftp://ftp.microsoft.com/developr/drg/cifs/cifs/Bhfile.zip
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*
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* contains "STRUCT.H", which declares the typedef CAPTUREFILE_HEADER
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2011-11-16 17:54:44 +00:00
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* for the header of a Microsoft Network Monitor 1.x capture file.
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*
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* The help files for Network Monitor 3.x document the 2.x file format.
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1999-01-18 21:34:54 +00:00
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*/
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1999-02-20 06:46:33 +00:00
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/* Capture file header, *including* magic number, is padded to 128 bytes. */
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1999-01-18 21:34:54 +00:00
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#define CAPTUREFILE_HEADER_SIZE 128
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1999-05-12 21:40:07 +00:00
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/* Magic number in Network Monitor 1.x files. */
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static const char netmon_1_x_magic[] = {
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1999-01-18 21:34:54 +00:00
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'R', 'T', 'S', 'S'
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};
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1999-05-12 21:40:07 +00:00
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/* Magic number in Network Monitor 2.x files. */
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static const char netmon_2_x_magic[] = {
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'G', 'M', 'B', 'U'
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};
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1999-01-18 21:34:54 +00:00
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/* Network Monitor file header (minus magic number). */
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struct netmon_hdr {
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guint8 ver_minor; /* minor version number */
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guint8 ver_major; /* major version number */
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guint16 network; /* network type */
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guint16 ts_year; /* year of capture start */
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guint16 ts_month; /* month of capture start (January = 1) */
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guint16 ts_dow; /* day of week of capture start (Sun = 0) */
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guint16 ts_day; /* day of month of capture start */
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guint16 ts_hour; /* hour of capture start */
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guint16 ts_min; /* minute of capture start */
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guint16 ts_sec; /* second of capture start */
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guint16 ts_msec; /* millisecond of capture start */
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guint32 frametableoffset; /* frame index table offset */
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guint32 frametablelength; /* frame index table size */
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guint32 userdataoffset; /* user data offset */
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guint32 userdatalength; /* user data size */
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guint32 commentdataoffset; /* comment data offset */
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guint32 commentdatalength; /* comment data size */
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guint32 statisticsoffset; /* offset to statistics structure */
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guint32 statisticslength; /* length of statistics structure */
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guint32 networkinfooffset; /* offset to network info structure */
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guint32 networkinfolength; /* length of network info structure */
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};
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1999-11-26 22:50:51 +00:00
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/* Network Monitor 1.x record header; not defined in STRUCT.H, but deduced by
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1999-01-18 21:34:54 +00:00
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* looking at capture files. */
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1999-05-12 21:40:07 +00:00
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struct netmonrec_1_x_hdr {
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1999-01-18 21:34:54 +00:00
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guint32 ts_delta; /* time stamp - msecs since start of capture */
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guint16 orig_len; /* actual length of packet */
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guint16 incl_len; /* number of octets captured in file */
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};
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2011-11-16 17:54:44 +00:00
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/*
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* Network Monitor 2.x record header, as documented in NetMon 3.x's
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* help files.
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*/
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1999-05-12 21:40:07 +00:00
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struct netmonrec_2_x_hdr {
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2011-11-17 09:03:09 +00:00
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guint64 ts_delta; /* time stamp - usecs since start of capture */
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1999-05-12 21:40:07 +00:00
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guint32 orig_len; /* actual length of packet */
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guint32 incl_len; /* number of octets captured in file */
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};
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2010-07-18 19:41:11 +00:00
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/*
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* Network Monitor 2.1 and later record trailers; documented in the Network
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* Monitor 3.x help files, for 3.3 and later, although they don't clearly
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* state how the trailer format changes from version to version.
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*
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* Some fields are multi-byte integers, but they're not aligned on their
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* natural boundaries.
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*/
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struct netmonrec_2_1_trlr {
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guint8 network[2]; /* network type for this packet */
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};
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struct netmonrec_2_2_trlr {
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guint8 network[2]; /* network type for this packet */
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guint8 process_info_index[4]; /* index into the process info table */
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};
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struct netmonrec_2_3_trlr {
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guint8 network[2]; /* network type for this packet */
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guint8 process_info_index[4]; /* index into the process info table */
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guint8 utc_timestamp[8]; /* packet time stamp, as .1 us units since January 1, 1601, 00:00:00 UTC */
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guint8 timezone_index; /* index of time zone information */
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};
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2002-01-24 23:02:56 +00:00
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/*
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* The link-layer header on ATM packets.
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*/
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struct netmon_atm_hdr {
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guint8 dest[6]; /* "Destination address" - what is it? */
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guint8 src[6]; /* "Source address" - what is it? */
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guint16 vpi; /* VPI */
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guint16 vci; /* VCI */
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};
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2010-02-26 07:59:54 +00:00
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typedef struct {
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time_t start_secs;
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2011-11-16 17:54:44 +00:00
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guint32 start_nsecs;
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2010-02-26 07:59:54 +00:00
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guint8 version_major;
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2010-07-18 19:41:11 +00:00
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guint8 version_minor;
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2010-02-26 07:59:54 +00:00
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guint32 *frame_table;
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guint32 frame_table_size;
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guint current_frame;
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} netmon_t;
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2010-07-23 10:11:44 +00:00
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/*
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* XXX - at least in some NetMon 3.4 VPN captures, the per-packet
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* link-layer type is 0, but the packets have Ethernet headers.
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* We handle this by mapping 0 to WTAP_ENCAP_ETHERNET; should we,
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* instead, use the per-file link-layer type?
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*/
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2010-07-18 19:41:11 +00:00
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static const int netmon_encap[] = {
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2010-07-23 10:11:44 +00:00
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WTAP_ENCAP_ETHERNET,
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2010-07-18 19:41:11 +00:00
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WTAP_ENCAP_ETHERNET,
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WTAP_ENCAP_TOKEN_RING,
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WTAP_ENCAP_FDDI_BITSWAPPED,
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WTAP_ENCAP_ATM_PDUS, /* NDIS WAN - this is what's used for ATM */
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2011-05-03 09:14:56 +00:00
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WTAP_ENCAP_UNKNOWN, /* NDIS LocalTalk, but format 2.x uses it for IP-over-IEEE 1394 */
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2012-05-02 03:11:00 +00:00
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WTAP_ENCAP_IEEE_802_11_NETMON,
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2011-05-03 09:14:56 +00:00
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/* NDIS "DIX", but format 2.x uses it for 802.11 */
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WTAP_ENCAP_RAW_IP, /* NDIS ARCNET raw, but format 2.x uses it for "Tunneling interfaces" */
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WTAP_ENCAP_RAW_IP, /* NDIS ARCNET 878.2, but format 2.x uses it for "Wireless WAN" */
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WTAP_ENCAP_RAW_IP, /* NDIS ATM (no, this is NOT used for ATM); format 2.x uses it for "Raw IP Frames" */
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2010-07-18 19:41:11 +00:00
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WTAP_ENCAP_UNKNOWN, /* NDIS Wireless WAN */
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WTAP_ENCAP_UNKNOWN /* NDIS IrDA */
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};
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#define NUM_NETMON_ENCAPS (sizeof netmon_encap / sizeof netmon_encap[0])
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/*
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* Special link-layer types.
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*/
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2010-07-18 20:27:46 +00:00
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#define NETMON_NET_PCAP_BASE 0xE000
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2010-07-18 19:41:11 +00:00
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#define NETMON_NET_NETEVENT 0xFFE0
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#define NETMON_NET_NETWORK_INFO_EX 0xFFFB
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#define NETMON_NET_PAYLOAD_HEADER 0xFFFC
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#define NETMON_NET_NETWORK_INFO 0xFFFD
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#define NETMON_NET_DNS_CACHE 0xFFFE
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#define NETMON_NET_NETMON_FILTER 0xFFFF
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Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
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static gboolean netmon_read(wtap *wth, int *err, gchar **err_info,
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2006-11-05 22:46:44 +00:00
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gint64 *data_offset);
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static gboolean netmon_seek_read(wtap *wth, gint64 seek_off,
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2011-09-01 09:43:10 +00:00
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union wtap_pseudo_header *pseudo_header, guint8 *pd, int length,
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Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
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int *err, gchar **err_info);
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2002-03-05 08:40:27 +00:00
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static gboolean netmon_read_atm_pseudoheader(FILE_T fh,
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2011-04-21 09:41:52 +00:00
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union wtap_pseudo_header *pseudo_header, int *err, gchar **err_info);
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2011-09-01 09:43:10 +00:00
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static gboolean netmon_read_rec_data(FILE_T fh, guint8 *pd, int length,
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2011-04-21 09:41:52 +00:00
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int *err, gchar **err_info);
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2011-05-03 08:49:41 +00:00
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static int netmon_read_rec_trailer(FILE_T fh, int trlr_size, int *err,
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2011-05-03 08:22:25 +00:00
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gchar **err_info);
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2002-06-04 21:55:38 +00:00
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static void netmon_sequential_close(wtap *wth);
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1999-12-04 05:14:39 +00:00
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static gboolean netmon_dump(wtap_dumper *wdh, const struct wtap_pkthdr *phdr,
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2011-09-01 09:43:10 +00:00
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const union wtap_pseudo_header *pseudo_header, const guint8 *pd, int *err);
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1999-12-04 05:14:39 +00:00
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static gboolean netmon_dump_close(wtap_dumper *wdh, int *err);
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
|
Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
|
|
|
int netmon_open(wtap *wth, int *err, gchar **err_info)
|
1999-01-18 21:34:54 +00:00
|
|
|
{
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|
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|
int bytes_read;
|
1999-05-12 21:40:07 +00:00
|
|
|
char magic[sizeof netmon_1_x_magic];
|
1999-01-18 21:34:54 +00:00
|
|
|
struct netmon_hdr hdr;
|
Add to Wiretap the ability to write capture files; for now, it can only
write them in "libpcap" format, but the mechanism can have other formats
added.
When creating the temporary file for a capture, use "create_tempfile()",
to close a security hole opened by the fact that "tempnam()" creates a
temporary file, but doesn't open it, and we open the file with the name
it gives us - somebody could remove the file and plant a link to some
file, and, if as may well be the case when Ethereal is capturing
packets, it's running as "root", that means we write a capture on top of
that file.... (The aforementioned changes to Wiretap let you open a
capture file for writing given an file descriptor, "fdopen()"-style,
which this change requires.)
svn path=/trunk/; revision=509
1999-08-18 04:17:38 +00:00
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|
|
int file_type;
|
1999-01-18 21:34:54 +00:00
|
|
|
struct tm tm;
|
2011-11-17 09:03:09 +00:00
|
|
|
guint32 frame_table_offset;
|
1999-11-26 22:50:51 +00:00
|
|
|
guint32 frame_table_length;
|
2001-08-25 03:18:48 +00:00
|
|
|
guint32 frame_table_size;
|
2000-03-22 09:52:21 +00:00
|
|
|
guint32 *frame_table;
|
2000-03-22 23:47:28 +00:00
|
|
|
#ifdef WORDS_BIGENDIAN
|
2001-07-13 00:55:58 +00:00
|
|
|
unsigned int i;
|
2000-03-22 23:47:28 +00:00
|
|
|
#endif
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon_t *netmon;
|
1999-01-18 21:34:54 +00:00
|
|
|
|
|
|
|
/* Read in the string that should be at the start of a Network
|
|
|
|
* Monitor file */
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
errno = WTAP_ERR_CANT_READ;
|
2011-04-06 06:51:19 +00:00
|
|
|
bytes_read = file_read(magic, sizeof magic, wth->fh);
|
1999-01-18 21:34:54 +00:00
|
|
|
if (bytes_read != sizeof magic) {
|
2011-04-21 09:41:52 +00:00
|
|
|
*err = file_error(wth->fh, err_info);
|
1999-10-05 07:06:08 +00:00
|
|
|
if (*err != 0)
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
return -1;
|
|
|
|
return 0;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
|
|
|
|
1999-05-12 21:40:07 +00:00
|
|
|
if (memcmp(magic, netmon_1_x_magic, sizeof netmon_1_x_magic) != 0
|
|
|
|
&& memcmp(magic, netmon_2_x_magic, sizeof netmon_1_x_magic) != 0) {
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
return 0;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Read the rest of the header. */
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
errno = WTAP_ERR_CANT_READ;
|
2011-04-06 06:51:19 +00:00
|
|
|
bytes_read = file_read(&hdr, sizeof hdr, wth->fh);
|
1999-01-18 21:34:54 +00:00
|
|
|
if (bytes_read != sizeof hdr) {
|
2011-04-21 09:41:52 +00:00
|
|
|
*err = file_error(wth->fh, err_info);
|
1999-10-05 07:06:08 +00:00
|
|
|
if (*err != 0)
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
return -1;
|
|
|
|
return 0;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
|
|
|
|
1999-05-12 21:40:07 +00:00
|
|
|
switch (hdr.ver_major) {
|
|
|
|
|
|
|
|
case 1:
|
Add to Wiretap the ability to write capture files; for now, it can only
write them in "libpcap" format, but the mechanism can have other formats
added.
When creating the temporary file for a capture, use "create_tempfile()",
to close a security hole opened by the fact that "tempnam()" creates a
temporary file, but doesn't open it, and we open the file with the name
it gives us - somebody could remove the file and plant a link to some
file, and, if as may well be the case when Ethereal is capturing
packets, it's running as "root", that means we write a capture on top of
that file.... (The aforementioned changes to Wiretap let you open a
capture file for writing given an file descriptor, "fdopen()"-style,
which this change requires.)
svn path=/trunk/; revision=509
1999-08-18 04:17:38 +00:00
|
|
|
file_type = WTAP_FILE_NETMON_1_x;
|
1999-05-12 21:40:07 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case 2:
|
Add to Wiretap the ability to write capture files; for now, it can only
write them in "libpcap" format, but the mechanism can have other formats
added.
When creating the temporary file for a capture, use "create_tempfile()",
to close a security hole opened by the fact that "tempnam()" creates a
temporary file, but doesn't open it, and we open the file with the name
it gives us - somebody could remove the file and plant a link to some
file, and, if as may well be the case when Ethereal is capturing
packets, it's running as "root", that means we write a capture on top of
that file.... (The aforementioned changes to Wiretap let you open a
capture file for writing given an file descriptor, "fdopen()"-style,
which this change requires.)
svn path=/trunk/; revision=509
1999-08-18 04:17:38 +00:00
|
|
|
file_type = WTAP_FILE_NETMON_2_x;
|
1999-05-12 21:40:07 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
*err = WTAP_ERR_UNSUPPORTED;
|
Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
|
|
|
*err_info = g_strdup_printf("netmon: major version %u unsupported", hdr.ver_major);
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
return -1;
|
1999-05-12 21:40:07 +00:00
|
|
|
}
|
|
|
|
|
1999-01-18 21:34:54 +00:00
|
|
|
hdr.network = pletohs(&hdr.network);
|
1999-08-22 02:29:40 +00:00
|
|
|
if (hdr.network >= NUM_NETMON_ENCAPS
|
|
|
|
|| netmon_encap[hdr.network] == WTAP_ENCAP_UNKNOWN) {
|
2000-02-19 08:00:08 +00:00
|
|
|
*err = WTAP_ERR_UNSUPPORTED_ENCAP;
|
Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
|
|
|
*err_info = g_strdup_printf("netmon: network type %u unknown or unsupported",
|
|
|
|
hdr.network);
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
return -1;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* This is a netmon file */
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
wth->file_type = file_type;
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon = (netmon_t *)g_malloc(sizeof(netmon_t));
|
|
|
|
wth->priv = (void *)netmon;
|
1999-01-18 21:34:54 +00:00
|
|
|
wth->subtype_read = netmon_read;
|
2002-01-24 23:02:56 +00:00
|
|
|
wth->subtype_seek_read = netmon_seek_read;
|
2002-06-04 21:55:38 +00:00
|
|
|
wth->subtype_sequential_close = netmon_sequential_close;
|
2009-12-09 03:27:12 +00:00
|
|
|
|
|
|
|
/* NetMon capture file formats v2.1+ use per-packet encapsulation types. NetMon 3 sets the value in
|
|
|
|
* the header to 1 (Ethernet) for backwards compability. */
|
|
|
|
if((hdr.ver_major == 2 && hdr.ver_minor >= 1) || hdr.ver_major > 2)
|
2010-07-18 19:41:11 +00:00
|
|
|
wth->file_encap = WTAP_ENCAP_PER_PACKET;
|
2009-12-09 03:27:12 +00:00
|
|
|
else
|
|
|
|
wth->file_encap = netmon_encap[hdr.network];
|
|
|
|
|
Have Wiretap set the snapshot length to 0 if it can't be derived from
reading the capture file. Have callers of "wtap_snapshot_length()"
treat a value of 0 as "unknown", and default to WTAP_MAX_PACKET_SIZE (so
that, when writing a capture file in a format that *does* store the
snapshot length, we can at least put *something* in the file).
If we don't know the snapshot length of the current capture file, don't
display a value in the summary window.
Don't use "cfile.snap" as the snapshot length option when capturing -
doing so causes Ethereal to default, when capturing, to the snapshot
length of the last capture file that you read in, rather than to the
snapshot length of the last capture you did (or the initial default of
"no snapshot length").
Redo the "Capture Options" dialog box to group options into sections
with frames around them, and add units to the snapshot length, maximum
file size, and capture duration options, as per a suggestion by Ulf
Lamping. Also add units to the capture count option.
Make the snapshot length, capture count, maximum file size, and capture
duration options into a combination of a check box and a spin button.
If the check box is not checked, the limit in question is inactive
(snapshot length of 65535, no max packet count, no max file size, no max
capture duration); if it's checked, the spinbox specifies the limit.
Default all of the check boxes to "not checked" and all of the spin
boxes to small values.
Use "gtk_toggle_button_get_active()" rather than directly fetching the
state of a check box.
svn path=/trunk/; revision=4709
2002-02-08 10:07:41 +00:00
|
|
|
wth->snapshot_length = 0; /* not available in header */
|
1999-01-18 21:34:54 +00:00
|
|
|
/*
|
|
|
|
* Convert the time stamp to a "time_t" and a number of
|
|
|
|
* milliseconds.
|
|
|
|
*/
|
|
|
|
tm.tm_year = pletohs(&hdr.ts_year) - 1900;
|
|
|
|
tm.tm_mon = pletohs(&hdr.ts_month) - 1;
|
|
|
|
tm.tm_mday = pletohs(&hdr.ts_day);
|
|
|
|
tm.tm_hour = pletohs(&hdr.ts_hour);
|
|
|
|
tm.tm_min = pletohs(&hdr.ts_min);
|
|
|
|
tm.tm_sec = pletohs(&hdr.ts_sec);
|
|
|
|
tm.tm_isdst = -1;
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon->start_secs = mktime(&tm);
|
1999-01-18 21:34:54 +00:00
|
|
|
/*
|
|
|
|
* XXX - what if "secs" is -1? Unlikely, but if the capture was
|
|
|
|
* done in a time zone that switches between standard and summer
|
|
|
|
* time sometime other than when we do, and thus the time was one
|
|
|
|
* that doesn't exist here because a switch from standard to summer
|
|
|
|
* time zips over it, it could happen.
|
|
|
|
*
|
|
|
|
* On the other hand, if the capture was done in a different time
|
|
|
|
* zone, this won't work right anyway; unfortunately, the time
|
|
|
|
* zone isn't stored in the capture file (why the hell didn't
|
|
|
|
* they stuff a FILETIME, which is the number of 100-nanosecond
|
|
|
|
* intervals since 1601-01-01 00:00:00 "UTC", there, instead
|
|
|
|
* of stuffing a SYSTEMTIME, which is time-zone-dependent, there?).
|
|
|
|
*/
|
2011-11-16 17:54:44 +00:00
|
|
|
netmon->start_nsecs = pletohs(&hdr.ts_msec)*1000000;
|
1999-05-12 21:40:07 +00:00
|
|
|
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon->version_major = hdr.ver_major;
|
2010-07-18 19:41:11 +00:00
|
|
|
netmon->version_minor = hdr.ver_minor;
|
1999-01-18 21:34:54 +00:00
|
|
|
|
|
|
|
/*
|
2000-03-22 07:06:59 +00:00
|
|
|
* Get the offset of the frame index table.
|
1999-01-18 21:34:54 +00:00
|
|
|
*/
|
2000-03-22 07:06:59 +00:00
|
|
|
frame_table_offset = pletohl(&hdr.frametableoffset);
|
1999-01-18 21:34:54 +00:00
|
|
|
|
1999-11-26 22:50:51 +00:00
|
|
|
/*
|
|
|
|
* It appears that some NetMon 2.x files don't have the
|
|
|
|
* first packet starting exactly 128 bytes into the file.
|
|
|
|
*
|
2000-03-22 07:06:59 +00:00
|
|
|
* Furthermore, it also appears that there are "holes" in
|
|
|
|
* the file, i.e. frame N+1 doesn't always follow immediately
|
|
|
|
* after frame N.
|
|
|
|
*
|
|
|
|
* Therefore, we must read the frame table, and use the offsets
|
|
|
|
* in it as the offsets of the frames.
|
1999-11-26 22:50:51 +00:00
|
|
|
*/
|
|
|
|
frame_table_length = pletohl(&hdr.frametablelength);
|
2009-04-22 03:07:37 +00:00
|
|
|
frame_table_size = frame_table_length / (guint32)sizeof (guint32);
|
2000-03-22 09:52:21 +00:00
|
|
|
if ((frame_table_size * sizeof (guint32)) != frame_table_length) {
|
2011-12-13 09:53:50 +00:00
|
|
|
*err = WTAP_ERR_BAD_FILE;
|
Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
|
|
|
*err_info = g_strdup_printf("netmon: frame table length is %u, which is not a multiple of the size of an entry",
|
|
|
|
frame_table_length);
|
2010-02-26 07:59:54 +00:00
|
|
|
g_free(netmon);
|
2000-03-22 07:06:59 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2000-03-22 09:52:21 +00:00
|
|
|
if (frame_table_size == 0) {
|
2011-12-13 09:53:50 +00:00
|
|
|
*err = WTAP_ERR_BAD_FILE;
|
Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
|
|
|
*err_info = g_strdup_printf("netmon: frame table length is %u, which means it's less than one entry in size",
|
|
|
|
frame_table_length);
|
2010-02-26 07:59:54 +00:00
|
|
|
g_free(netmon);
|
1999-11-26 22:50:51 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2011-12-13 01:49:27 +00:00
|
|
|
/*
|
|
|
|
* XXX - clamp the size of the frame table, so that we don't
|
|
|
|
* attempt to allocate a huge frame table and fail.
|
2011-12-13 06:45:16 +00:00
|
|
|
*
|
|
|
|
* Given that file offsets in the frame table are 32-bit,
|
|
|
|
* a NetMon file cannot be bigger than 2^32 bytes.
|
|
|
|
* Given that a NetMon 1.x-format packet header is 8 bytes,
|
|
|
|
* that means a NetMon file cannot have more than
|
|
|
|
* 512*2^20 packets. We'll pick that as the limit for
|
|
|
|
* now; it's 1/8th of a 32-bit address space, which is
|
|
|
|
* probably not going to exhaust the address space all by
|
|
|
|
* itself, and probably won't exhaust the backing store.
|
2011-12-13 01:49:27 +00:00
|
|
|
*/
|
2011-12-13 06:45:16 +00:00
|
|
|
if (frame_table_size > 512*1024*1024) {
|
2011-12-13 09:53:50 +00:00
|
|
|
*err = WTAP_ERR_BAD_FILE;
|
2011-12-13 01:49:27 +00:00
|
|
|
*err_info = g_strdup_printf("netmon: frame table length is %u, which is larger than we support",
|
|
|
|
frame_table_length);
|
|
|
|
g_free(netmon);
|
|
|
|
return -1;
|
|
|
|
}
|
2002-06-07 07:27:35 +00:00
|
|
|
if (file_seek(wth->fh, frame_table_offset, SEEK_SET, err) == -1) {
|
2010-02-26 07:59:54 +00:00
|
|
|
g_free(netmon);
|
2002-03-04 00:25:35 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2012-06-02 14:13:14 +00:00
|
|
|
frame_table = (guint32 *)g_malloc(frame_table_length);
|
1999-11-26 22:50:51 +00:00
|
|
|
errno = WTAP_ERR_CANT_READ;
|
2011-04-06 06:51:19 +00:00
|
|
|
bytes_read = file_read(frame_table, frame_table_length, wth->fh);
|
2001-10-25 20:29:24 +00:00
|
|
|
if ((guint32)bytes_read != frame_table_length) {
|
2011-04-21 09:41:52 +00:00
|
|
|
*err = file_error(wth->fh, err_info);
|
2001-12-04 23:38:55 +00:00
|
|
|
if (*err == 0)
|
|
|
|
*err = WTAP_ERR_SHORT_READ;
|
2005-05-30 21:08:16 +00:00
|
|
|
g_free(frame_table);
|
2010-02-26 07:59:54 +00:00
|
|
|
g_free(netmon);
|
2001-12-04 23:38:55 +00:00
|
|
|
return -1;
|
1999-11-26 22:50:51 +00:00
|
|
|
}
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon->frame_table_size = frame_table_size;
|
|
|
|
netmon->frame_table = frame_table;
|
2000-03-22 09:52:21 +00:00
|
|
|
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
|
|
/*
|
|
|
|
* OK, now byte-swap the frame table.
|
|
|
|
*/
|
|
|
|
for (i = 0; i < frame_table_size; i++)
|
|
|
|
frame_table[i] = pletohl(&frame_table[i]);
|
|
|
|
#endif
|
1999-11-26 22:50:51 +00:00
|
|
|
|
2000-03-22 07:06:59 +00:00
|
|
|
/* Set up to start reading at the first frame. */
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon->current_frame = 0;
|
2011-11-16 17:54:44 +00:00
|
|
|
switch (netmon->version_major) {
|
1999-01-18 21:34:54 +00:00
|
|
|
|
2011-11-16 17:54:44 +00:00
|
|
|
case 1:
|
|
|
|
/*
|
|
|
|
* Version 1.x of the file format supports
|
|
|
|
* millisecond precision.
|
|
|
|
*/
|
|
|
|
wth->tsprecision = WTAP_FILE_TSPREC_MSEC;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 2:
|
|
|
|
/*
|
|
|
|
* Version 1.x of the file format supports
|
|
|
|
* 100-nanosecond precision; we don't
|
|
|
|
* currently support that, so say
|
|
|
|
* "nanosecond precision" for now.
|
|
|
|
*/
|
|
|
|
wth->tsprecision = WTAP_FILE_TSPREC_NSEC;
|
|
|
|
break;
|
|
|
|
}
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
return 1;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
|
|
|
|
2011-05-03 08:22:25 +00:00
|
|
|
static size_t
|
|
|
|
netmon_trailer_size(netmon_t *netmon)
|
|
|
|
{
|
|
|
|
if ((netmon->version_major == 2 && netmon->version_minor >= 1) ||
|
|
|
|
netmon->version_major > 2) {
|
|
|
|
if (netmon->version_major > 2) {
|
|
|
|
/*
|
|
|
|
* Asssume 2.3 format, for now.
|
|
|
|
*/
|
|
|
|
return sizeof (struct netmonrec_2_3_trlr);
|
|
|
|
} else {
|
|
|
|
switch (netmon->version_minor) {
|
|
|
|
|
|
|
|
case 1:
|
|
|
|
return sizeof (struct netmonrec_2_1_trlr);
|
|
|
|
|
|
|
|
case 2:
|
|
|
|
return sizeof (struct netmonrec_2_2_trlr);
|
|
|
|
|
|
|
|
default:
|
|
|
|
return sizeof (struct netmonrec_2_3_trlr);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0; /* no trailer */
|
|
|
|
}
|
|
|
|
|
2011-05-03 08:49:41 +00:00
|
|
|
static void
|
|
|
|
netmon_set_pseudo_header_info(int pkt_encap,
|
2011-09-01 09:43:10 +00:00
|
|
|
union wtap_pseudo_header *pseudo_header, guint8 *pd, int length)
|
2011-05-03 08:49:41 +00:00
|
|
|
{
|
|
|
|
switch (pkt_encap) {
|
|
|
|
|
|
|
|
case WTAP_ENCAP_ATM_PDUS:
|
|
|
|
/*
|
|
|
|
* Attempt to guess from the packet data, the VPI, and
|
|
|
|
* the VCIinformation about the type of traffic.
|
|
|
|
*/
|
|
|
|
atm_guess_traffic_type(pd, length, pseudo_header);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ENCAP_ETHERNET:
|
|
|
|
/*
|
|
|
|
* We assume there's no FCS in this frame.
|
|
|
|
*/
|
|
|
|
pseudo_header->eth.fcs_len = 0;
|
|
|
|
break;
|
|
|
|
|
2012-05-02 03:11:00 +00:00
|
|
|
case WTAP_ENCAP_IEEE_802_11_NETMON:
|
2011-05-03 08:49:41 +00:00
|
|
|
/*
|
|
|
|
* It appears to be the case that management
|
|
|
|
* frames have an FCS and data frames don't;
|
|
|
|
* I'm not sure about control frames. An
|
|
|
|
* "FCS length" of -2 means "NetMon weirdness".
|
|
|
|
*/
|
|
|
|
pseudo_header->ieee_802_11.fcs_len = -2;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1999-01-18 21:34:54 +00:00
|
|
|
/* Read the next packet */
|
Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
|
|
|
static gboolean netmon_read(wtap *wth, int *err, gchar **err_info,
|
2006-11-05 22:46:44 +00:00
|
|
|
gint64 *data_offset)
|
1999-01-18 21:34:54 +00:00
|
|
|
{
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon_t *netmon = (netmon_t *)wth->priv;
|
1999-08-22 02:29:40 +00:00
|
|
|
guint32 packet_size = 0;
|
2002-01-24 23:02:56 +00:00
|
|
|
guint32 orig_size = 0;
|
1999-01-18 21:34:54 +00:00
|
|
|
int bytes_read;
|
1999-05-12 21:40:07 +00:00
|
|
|
union {
|
|
|
|
struct netmonrec_1_x_hdr hdr_1_x;
|
|
|
|
struct netmonrec_2_x_hdr hdr_2_x;
|
|
|
|
} hdr;
|
|
|
|
int hdr_size = 0;
|
2011-05-03 08:22:25 +00:00
|
|
|
int trlr_size;
|
2011-11-17 09:03:09 +00:00
|
|
|
gint64 rec_offset;
|
2002-08-13 03:26:30 +00:00
|
|
|
guint8 *data_ptr;
|
2010-07-18 20:47:48 +00:00
|
|
|
gint64 delta = 0; /* signed - frame times can be before the nominal start */
|
2011-11-16 17:54:44 +00:00
|
|
|
gint64 t;
|
1999-01-18 21:34:54 +00:00
|
|
|
time_t secs;
|
2011-11-16 17:54:44 +00:00
|
|
|
guint32 nsecs;
|
1999-01-18 21:34:54 +00:00
|
|
|
|
2010-07-18 19:41:11 +00:00
|
|
|
again:
|
1999-01-18 21:34:54 +00:00
|
|
|
/* Have we reached the end of the packet data? */
|
2000-03-22 07:06:59 +00:00
|
|
|
if (netmon->current_frame >= netmon->frame_table_size) {
|
2000-03-22 09:52:21 +00:00
|
|
|
/* Yes. We won't need the frame table any more;
|
|
|
|
free it. */
|
2010-02-26 07:59:54 +00:00
|
|
|
g_free(netmon->frame_table);
|
|
|
|
netmon->frame_table = NULL;
|
2000-11-19 03:47:36 +00:00
|
|
|
*err = 0; /* it's just an EOF, not an error */
|
|
|
|
return FALSE;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
2000-03-22 07:06:59 +00:00
|
|
|
|
|
|
|
/* Seek to the beginning of the current record, if we're
|
|
|
|
not there already (seeking to the current position
|
|
|
|
may still cause a seek and a read of the underlying file,
|
2010-07-18 19:41:11 +00:00
|
|
|
so we don't want to do it unconditionally).
|
|
|
|
|
2010-12-28 20:32:58 +00:00
|
|
|
Yes, the current record could be before the previous
|
|
|
|
record. At least some captures put the trailer record
|
|
|
|
with statistics as the first physical record in the
|
|
|
|
file, but set the frame table up so it's the last
|
|
|
|
record in sequence. */
|
2000-09-07 05:34:23 +00:00
|
|
|
rec_offset = netmon->frame_table[netmon->current_frame];
|
2012-05-04 16:56:18 +00:00
|
|
|
if (file_tell(wth->fh) != rec_offset) {
|
|
|
|
if (file_seek(wth->fh, rec_offset, SEEK_SET, err) == -1)
|
2002-03-04 00:25:35 +00:00
|
|
|
return FALSE;
|
2000-03-22 07:06:59 +00:00
|
|
|
}
|
|
|
|
netmon->current_frame++;
|
|
|
|
|
1999-01-18 21:34:54 +00:00
|
|
|
/* Read record header. */
|
2000-03-22 07:06:59 +00:00
|
|
|
switch (netmon->version_major) {
|
1999-05-12 21:40:07 +00:00
|
|
|
|
|
|
|
case 1:
|
|
|
|
hdr_size = sizeof (struct netmonrec_1_x_hdr);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 2:
|
|
|
|
hdr_size = sizeof (struct netmonrec_2_x_hdr);
|
|
|
|
break;
|
|
|
|
}
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
errno = WTAP_ERR_CANT_READ;
|
2000-03-22 07:06:59 +00:00
|
|
|
|
2011-04-06 06:51:19 +00:00
|
|
|
bytes_read = file_read(&hdr, hdr_size, wth->fh);
|
1999-05-12 21:40:07 +00:00
|
|
|
if (bytes_read != hdr_size) {
|
2011-04-21 09:41:52 +00:00
|
|
|
*err = file_error(wth->fh, err_info);
|
2000-09-07 05:34:23 +00:00
|
|
|
if (*err == 0 && bytes_read != 0) {
|
Have the per-capture-file-type open routines "wtap_open_offline()" calls
return 1 on success, -1 if they got an error, and 0 if the file isn't of
the type that file is checking for, and supply an error code if they
return -1; have "wtap_open_offline()" use that error code. Also, have
the per-capture-file-type open routines treat errors accessing the file
as errors, and return -1, rather than just returning 0 so that we try
another file type.
Have the per-capture-file-type read routines "wtap_loop()" calls return
-1 and supply an error code on error (and not, as they did in some
cases, call "g_error()" and abort), and have "wtap_loop()", if the read
routine returned an error, return FALSE (and pass an error-code-pointer
argument onto the read routines, so they fill it in), and return TRUE on
success.
Add some new error codes for them to return.
Now that "wtap_loop()" can return a success/failure indication and an
error code, in "read_cap_file()" put up a message box if we get an error
reading the file, and return the error code.
Handle the additional errors we can get when opening a capture file.
If the attempt to open a capture file succeeds, but the attempt to read
it fails, don't treat that as a complete failure - we may have managed
to read some of the capture file, and we should display what we managed
to read.
svn path=/trunk/; revision=516
1999-08-19 05:31:38 +00:00
|
|
|
*err = WTAP_ERR_SHORT_READ;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
2000-09-07 05:34:23 +00:00
|
|
|
return FALSE;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
|
|
|
|
2000-03-22 07:06:59 +00:00
|
|
|
switch (netmon->version_major) {
|
1999-05-12 21:40:07 +00:00
|
|
|
|
|
|
|
case 1:
|
2002-01-24 23:02:56 +00:00
|
|
|
orig_size = pletohs(&hdr.hdr_1_x.orig_len);
|
1999-05-12 21:40:07 +00:00
|
|
|
packet_size = pletohs(&hdr.hdr_1_x.incl_len);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 2:
|
2002-01-24 23:02:56 +00:00
|
|
|
orig_size = pletohl(&hdr.hdr_2_x.orig_len);
|
1999-05-12 21:40:07 +00:00
|
|
|
packet_size = pletohl(&hdr.hdr_2_x.incl_len);
|
|
|
|
break;
|
|
|
|
}
|
1999-08-22 02:29:40 +00:00
|
|
|
if (packet_size > WTAP_MAX_PACKET_SIZE) {
|
|
|
|
/*
|
|
|
|
* Probably a corrupt capture file; don't blow up trying
|
|
|
|
* to allocate space for an immensely-large packet.
|
|
|
|
*/
|
2011-12-13 09:53:50 +00:00
|
|
|
*err = WTAP_ERR_BAD_FILE;
|
Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
|
|
|
*err_info = g_strdup_printf("netmon: File has %u-byte packet, bigger than maximum of %u",
|
|
|
|
packet_size, WTAP_MAX_PACKET_SIZE);
|
2000-09-07 05:34:23 +00:00
|
|
|
return FALSE;
|
1999-08-22 02:29:40 +00:00
|
|
|
}
|
2002-01-24 23:02:56 +00:00
|
|
|
|
2012-05-04 16:56:18 +00:00
|
|
|
*data_offset = file_tell(wth->fh);
|
1999-01-18 21:34:54 +00:00
|
|
|
|
2002-01-24 23:02:56 +00:00
|
|
|
/*
|
|
|
|
* If this is an ATM packet, the first
|
|
|
|
* "sizeof (struct netmon_atm_hdr)" bytes have destination and
|
|
|
|
* source addresses (6 bytes - MAC addresses of some sort?)
|
|
|
|
* and the VPI and VCI; read them and generate the pseudo-header
|
|
|
|
* from them.
|
|
|
|
*/
|
2003-10-01 07:11:49 +00:00
|
|
|
switch (wth->file_encap) {
|
|
|
|
|
|
|
|
case WTAP_ENCAP_ATM_PDUS:
|
2002-01-24 23:02:56 +00:00
|
|
|
if (packet_size < sizeof (struct netmon_atm_hdr)) {
|
|
|
|
/*
|
|
|
|
* Uh-oh, the packet isn't big enough to even
|
|
|
|
* have a pseudo-header.
|
|
|
|
*/
|
2011-12-13 09:53:50 +00:00
|
|
|
*err = WTAP_ERR_BAD_FILE;
|
2009-06-02 07:18:18 +00:00
|
|
|
*err_info = g_strdup_printf("netmon: ATM file has a %u-byte packet, too small to have even an ATM pseudo-header",
|
Have the Wiretap open, read, and seek-and-read routines return, in
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00
|
|
|
packet_size);
|
2002-01-24 23:02:56 +00:00
|
|
|
return FALSE;
|
|
|
|
}
|
2002-03-05 08:40:27 +00:00
|
|
|
if (!netmon_read_atm_pseudoheader(wth->fh, &wth->pseudo_header,
|
2011-04-21 09:41:52 +00:00
|
|
|
err, err_info))
|
2002-01-24 23:02:56 +00:00
|
|
|
return FALSE; /* Read error */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Don't count the pseudo-header as part of the packet.
|
|
|
|
*/
|
2009-04-22 03:07:37 +00:00
|
|
|
orig_size -= (guint)sizeof (struct netmon_atm_hdr);
|
|
|
|
packet_size -= (guint)sizeof (struct netmon_atm_hdr);
|
2003-10-01 07:11:49 +00:00
|
|
|
break;
|
|
|
|
|
2011-05-03 08:22:25 +00:00
|
|
|
default:
|
2003-10-01 07:11:49 +00:00
|
|
|
break;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
2002-01-24 23:02:56 +00:00
|
|
|
|
|
|
|
buffer_assure_space(wth->frame_buffer, packet_size);
|
2002-08-13 03:26:30 +00:00
|
|
|
data_ptr = buffer_start_ptr(wth->frame_buffer);
|
2011-04-21 09:41:52 +00:00
|
|
|
if (!netmon_read_rec_data(wth->fh, data_ptr, packet_size, err,
|
|
|
|
err_info))
|
2002-01-24 23:02:56 +00:00
|
|
|
return FALSE; /* Read error */
|
1999-01-18 21:34:54 +00:00
|
|
|
|
2000-03-22 07:06:59 +00:00
|
|
|
switch (netmon->version_major) {
|
1999-05-12 21:40:07 +00:00
|
|
|
|
|
|
|
case 1:
|
2010-07-21 16:25:59 +00:00
|
|
|
/*
|
|
|
|
* According to Paul Long, this offset is unsigned.
|
|
|
|
* It's 32 bits, so the maximum value will fit in
|
|
|
|
* a gint64 such as delta, even after multiplying
|
2011-11-16 17:54:44 +00:00
|
|
|
* it by 1000000.
|
2010-07-21 18:37:01 +00:00
|
|
|
*
|
|
|
|
* pletohl() returns a guint32; we cast it to gint64
|
|
|
|
* before multiplying, so that the product doesn't
|
|
|
|
* overflow a guint32.
|
2010-07-21 16:25:59 +00:00
|
|
|
*/
|
2011-11-16 17:54:44 +00:00
|
|
|
delta = ((gint64)pletohl(&hdr.hdr_1_x.ts_delta))*1000000;
|
1999-05-12 21:40:07 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case 2:
|
2011-11-16 17:54:44 +00:00
|
|
|
/*
|
|
|
|
* OK, this is weird. Microsoft's documentation
|
|
|
|
* says this is in microseconds and is a 64-bit
|
|
|
|
* unsigned number, but it can be negative; they
|
|
|
|
* say what appears to amount to "treat it as an
|
|
|
|
* unsigned number, multiply it by 10, and then
|
|
|
|
* interpret the resulting 64-bit quantity as a
|
|
|
|
* signed number". That operation can turn a
|
|
|
|
* value with the uppermost bit 0 to a value with
|
|
|
|
* the uppermost bit 1, hence turning a large
|
|
|
|
* positive number-of-microseconds into a small
|
|
|
|
* negative number-of-100-nanosecond-increments.
|
|
|
|
*/
|
|
|
|
delta = pletohll(&hdr.hdr_2_x.ts_delta)*10;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* OK, it's now a signed value in 100-nanosecond
|
|
|
|
* units. Now convert it to nanosecond units.
|
|
|
|
*/
|
|
|
|
delta *= 100;
|
1999-05-12 21:40:07 +00:00
|
|
|
break;
|
|
|
|
}
|
2011-11-16 17:54:44 +00:00
|
|
|
secs = 0;
|
|
|
|
t = netmon->start_nsecs + delta;
|
|
|
|
while (t < 0) {
|
|
|
|
/*
|
|
|
|
* Propagate a borrow into the seconds.
|
|
|
|
* The seconds is a time_t, and can be < 0
|
|
|
|
* (unlikely, as Windows didn't exist before
|
|
|
|
* January 1, 1970, 00:00:00 UTC), while the
|
|
|
|
* nanoseconds should be positive, as in
|
|
|
|
* "nanoseconds since the instant of time
|
|
|
|
* represented by the seconds".
|
|
|
|
*
|
|
|
|
* We do not want t to be negative, as, according
|
|
|
|
* to the C90 standard, "if either operand [of /
|
|
|
|
* or %] is negative, whether the result of the
|
|
|
|
* / operator is the largest integer less than or
|
|
|
|
* equal to the algebraic quotient or the smallest
|
|
|
|
* greater than or equal to the algebraic quotient
|
|
|
|
* is implementation-defined, as is the sign of
|
|
|
|
* the result of the % operator", and we want
|
|
|
|
* the result of the division and remainder
|
|
|
|
* operations to be the same on all platforms.
|
|
|
|
*/
|
|
|
|
t += 1000000000;
|
|
|
|
secs--;
|
|
|
|
}
|
|
|
|
secs += (time_t)(t/1000000000);
|
|
|
|
nsecs = (guint32)(t%1000000000);
|
2012-02-25 23:24:34 +00:00
|
|
|
wth->phdr.presence_flags = WTAP_HAS_TS|WTAP_HAS_CAP_LEN;
|
2005-08-24 21:31:56 +00:00
|
|
|
wth->phdr.ts.secs = netmon->start_secs + secs;
|
2011-11-16 17:54:44 +00:00
|
|
|
wth->phdr.ts.nsecs = nsecs;
|
1999-01-18 21:34:54 +00:00
|
|
|
wth->phdr.caplen = packet_size;
|
2002-01-24 23:02:56 +00:00
|
|
|
wth->phdr.len = orig_size;
|
1999-05-12 21:40:07 +00:00
|
|
|
|
2010-07-18 19:41:11 +00:00
|
|
|
/*
|
|
|
|
* For version 2.1 and later, there's additional information
|
|
|
|
* after the frame data.
|
|
|
|
*/
|
2011-05-03 08:22:25 +00:00
|
|
|
trlr_size = (int)netmon_trailer_size(netmon);
|
|
|
|
if (trlr_size != 0) {
|
|
|
|
/*
|
|
|
|
* I haz a trailer.
|
|
|
|
*/
|
|
|
|
wth->phdr.pkt_encap = netmon_read_rec_trailer(wth->fh,
|
2011-05-03 08:49:41 +00:00
|
|
|
trlr_size, err, err_info);
|
2011-05-03 08:22:25 +00:00
|
|
|
if (wth->phdr.pkt_encap == -1)
|
|
|
|
return FALSE; /* error */
|
|
|
|
if (wth->phdr.pkt_encap == 0)
|
|
|
|
goto again;
|
2011-05-03 08:49:41 +00:00
|
|
|
netmon_set_pseudo_header_info(wth->phdr.pkt_encap,
|
|
|
|
&wth->pseudo_header, data_ptr, packet_size);
|
|
|
|
} else {
|
|
|
|
netmon_set_pseudo_header_info(wth->file_encap,
|
|
|
|
&wth->pseudo_header, data_ptr, packet_size);
|
2010-07-18 19:41:11 +00:00
|
|
|
}
|
|
|
|
|
2002-01-24 23:02:56 +00:00
|
|
|
return TRUE;
|
|
|
|
}
|
1999-05-12 21:40:07 +00:00
|
|
|
|
2002-03-05 08:40:27 +00:00
|
|
|
static gboolean
|
2006-11-05 22:46:44 +00:00
|
|
|
netmon_seek_read(wtap *wth, gint64 seek_off,
|
2011-09-01 09:43:10 +00:00
|
|
|
union wtap_pseudo_header *pseudo_header, guint8 *pd, int length,
|
2011-04-21 09:41:52 +00:00
|
|
|
int *err, gchar **err_info)
|
2002-01-24 23:02:56 +00:00
|
|
|
{
|
2011-05-03 08:22:25 +00:00
|
|
|
netmon_t *netmon = (netmon_t *)wth->priv;
|
|
|
|
int trlr_size;
|
|
|
|
int pkt_encap;
|
|
|
|
|
2002-06-07 07:27:35 +00:00
|
|
|
if (file_seek(wth->random_fh, seek_off, SEEK_SET, err) == -1)
|
2002-03-05 08:40:27 +00:00
|
|
|
return FALSE;
|
2002-01-24 23:02:56 +00:00
|
|
|
|
2003-10-01 07:11:49 +00:00
|
|
|
switch (wth->file_encap) {
|
|
|
|
|
|
|
|
case WTAP_ENCAP_ATM_PDUS:
|
2002-03-05 08:40:27 +00:00
|
|
|
if (!netmon_read_atm_pseudoheader(wth->random_fh, pseudo_header,
|
2011-04-21 09:41:52 +00:00
|
|
|
err, err_info)) {
|
2002-01-24 23:02:56 +00:00
|
|
|
/* Read error */
|
2002-03-05 08:40:27 +00:00
|
|
|
return FALSE;
|
2002-01-24 23:02:56 +00:00
|
|
|
}
|
2003-10-01 07:11:49 +00:00
|
|
|
break;
|
1999-05-12 21:40:07 +00:00
|
|
|
}
|
1999-01-18 21:34:54 +00:00
|
|
|
|
2002-01-24 23:02:56 +00:00
|
|
|
/*
|
|
|
|
* Read the packet data.
|
|
|
|
*/
|
2011-04-21 09:41:52 +00:00
|
|
|
if (!netmon_read_rec_data(wth->random_fh, pd, length, err, err_info))
|
2002-08-13 03:26:30 +00:00
|
|
|
return FALSE;
|
|
|
|
|
2011-05-03 08:22:25 +00:00
|
|
|
/*
|
|
|
|
* For version 2.1 and later, there's additional information
|
|
|
|
* after the frame data.
|
|
|
|
*/
|
|
|
|
trlr_size = (int)netmon_trailer_size(netmon);
|
|
|
|
if (trlr_size != 0) {
|
|
|
|
/*
|
|
|
|
* I haz a trailer.
|
|
|
|
*/
|
|
|
|
pkt_encap = netmon_read_rec_trailer(wth->random_fh,
|
2011-05-03 08:49:41 +00:00
|
|
|
trlr_size, err, err_info);
|
2011-05-03 08:22:25 +00:00
|
|
|
if (pkt_encap == -1)
|
|
|
|
return FALSE; /* error */
|
|
|
|
if (pkt_encap == 0) {
|
|
|
|
/*
|
|
|
|
* This should not happen.
|
|
|
|
*/
|
2011-12-13 09:53:50 +00:00
|
|
|
*err = WTAP_ERR_BAD_FILE;
|
2011-05-03 08:22:25 +00:00
|
|
|
*err_info = g_strdup("netmon: saw metadata in netmon_seek_read");
|
|
|
|
return FALSE;
|
|
|
|
}
|
2011-05-03 08:49:41 +00:00
|
|
|
netmon_set_pseudo_header_info(pkt_encap, pseudo_header,
|
|
|
|
pd, length);
|
|
|
|
} else {
|
|
|
|
netmon_set_pseudo_header_info(wth->file_encap, pseudo_header,
|
|
|
|
pd, length);
|
2011-05-03 08:22:25 +00:00
|
|
|
}
|
|
|
|
|
2002-08-13 03:26:30 +00:00
|
|
|
return TRUE;
|
2002-01-24 23:02:56 +00:00
|
|
|
}
|
|
|
|
|
2002-03-05 08:40:27 +00:00
|
|
|
static gboolean
|
2002-01-24 23:02:56 +00:00
|
|
|
netmon_read_atm_pseudoheader(FILE_T fh, union wtap_pseudo_header *pseudo_header,
|
2011-04-21 09:41:52 +00:00
|
|
|
int *err, gchar **err_info)
|
2002-01-24 23:02:56 +00:00
|
|
|
{
|
|
|
|
struct netmon_atm_hdr atm_phdr;
|
|
|
|
int bytes_read;
|
Replace the "ngsniffer_atm" with an "atm" pseudo-header, which isn't
just an image of the ATM Sniffer data. This means that Ethereal doesn't
have to know any ATM Sniffer-specific details (that's all hidden in
Wiretap), and allows us to add to that pseudo-header fields, traffic
types, etc. unknown to ATM Sniffers.
Have Wiretap map VPI 0/VCI 5 to the signalling AAL - for some capture
files, this might not be necessary, as they may mark all signalling
traffic as such, but, on other platforms, we don't know the AAL, so we
assume AAL5 except for 0/5 traffic. Doing it in Wiretap lets us hide
those details from Ethereal (and lets Ethereal interpret 0/5 traffic as
non-signalling traffic, in case that happens to be what it is).
We may know that traffic is LANE, but not whether it's LE Control or
emulated 802.3/802.5; handle that case.
svn path=/trunk/; revision=5302
2002-04-30 08:48:27 +00:00
|
|
|
guint16 vpi, vci;
|
2002-01-24 23:02:56 +00:00
|
|
|
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
2011-04-06 06:51:19 +00:00
|
|
|
bytes_read = file_read(&atm_phdr, sizeof (struct netmon_atm_hdr), fh);
|
2002-01-24 23:02:56 +00:00
|
|
|
if (bytes_read != sizeof (struct netmon_atm_hdr)) {
|
2011-04-21 09:41:52 +00:00
|
|
|
*err = file_error(fh, err_info);
|
2002-01-24 23:02:56 +00:00
|
|
|
if (*err == 0)
|
|
|
|
*err = WTAP_ERR_SHORT_READ;
|
2002-03-05 08:40:27 +00:00
|
|
|
return FALSE;
|
2002-01-24 23:02:56 +00:00
|
|
|
}
|
|
|
|
|
2002-07-29 06:09:59 +00:00
|
|
|
vpi = g_ntohs(atm_phdr.vpi);
|
|
|
|
vci = g_ntohs(atm_phdr.vci);
|
2002-01-24 23:02:56 +00:00
|
|
|
|
Replace the "ngsniffer_atm" with an "atm" pseudo-header, which isn't
just an image of the ATM Sniffer data. This means that Ethereal doesn't
have to know any ATM Sniffer-specific details (that's all hidden in
Wiretap), and allows us to add to that pseudo-header fields, traffic
types, etc. unknown to ATM Sniffers.
Have Wiretap map VPI 0/VCI 5 to the signalling AAL - for some capture
files, this might not be necessary, as they may mark all signalling
traffic as such, but, on other platforms, we don't know the AAL, so we
assume AAL5 except for 0/5 traffic. Doing it in Wiretap lets us hide
those details from Ethereal (and lets Ethereal interpret 0/5 traffic as
non-signalling traffic, in case that happens to be what it is).
We may know that traffic is LANE, but not whether it's LE Control or
emulated 802.3/802.5; handle that case.
svn path=/trunk/; revision=5302
2002-04-30 08:48:27 +00:00
|
|
|
pseudo_header->atm.vpi = vpi;
|
|
|
|
pseudo_header->atm.vci = vci;
|
|
|
|
|
|
|
|
/* We don't have this information */
|
2003-01-10 04:04:42 +00:00
|
|
|
pseudo_header->atm.flags = 0;
|
Replace the "ngsniffer_atm" with an "atm" pseudo-header, which isn't
just an image of the ATM Sniffer data. This means that Ethereal doesn't
have to know any ATM Sniffer-specific details (that's all hidden in
Wiretap), and allows us to add to that pseudo-header fields, traffic
types, etc. unknown to ATM Sniffers.
Have Wiretap map VPI 0/VCI 5 to the signalling AAL - for some capture
files, this might not be necessary, as they may mark all signalling
traffic as such, but, on other platforms, we don't know the AAL, so we
assume AAL5 except for 0/5 traffic. Doing it in Wiretap lets us hide
those details from Ethereal (and lets Ethereal interpret 0/5 traffic as
non-signalling traffic, in case that happens to be what it is).
We may know that traffic is LANE, but not whether it's LE Control or
emulated 802.3/802.5; handle that case.
svn path=/trunk/; revision=5302
2002-04-30 08:48:27 +00:00
|
|
|
pseudo_header->atm.channel = 0;
|
|
|
|
pseudo_header->atm.cells = 0;
|
|
|
|
pseudo_header->atm.aal5t_u2u = 0;
|
|
|
|
pseudo_header->atm.aal5t_len = 0;
|
|
|
|
pseudo_header->atm.aal5t_chksum = 0;
|
2002-01-24 23:02:56 +00:00
|
|
|
|
2002-03-05 08:40:27 +00:00
|
|
|
return TRUE;
|
2002-01-24 23:02:56 +00:00
|
|
|
}
|
|
|
|
|
2002-03-05 08:40:27 +00:00
|
|
|
static gboolean
|
2011-09-01 09:43:10 +00:00
|
|
|
netmon_read_rec_data(FILE_T fh, guint8 *pd, int length, int *err,
|
2011-04-21 09:41:52 +00:00
|
|
|
gchar **err_info)
|
2002-01-24 23:02:56 +00:00
|
|
|
{
|
|
|
|
int bytes_read;
|
|
|
|
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
2011-04-06 06:51:19 +00:00
|
|
|
bytes_read = file_read(pd, length, fh);
|
2002-01-24 23:02:56 +00:00
|
|
|
|
|
|
|
if (bytes_read != length) {
|
2011-04-21 09:41:52 +00:00
|
|
|
*err = file_error(fh, err_info);
|
2002-01-24 23:02:56 +00:00
|
|
|
if (*err == 0)
|
|
|
|
*err = WTAP_ERR_SHORT_READ;
|
2002-03-05 08:40:27 +00:00
|
|
|
return FALSE;
|
2002-01-24 23:02:56 +00:00
|
|
|
}
|
2002-03-05 08:40:27 +00:00
|
|
|
return TRUE;
|
1999-01-18 21:34:54 +00:00
|
|
|
}
|
1999-12-04 05:14:39 +00:00
|
|
|
|
2011-05-03 08:22:25 +00:00
|
|
|
/*
|
|
|
|
* Read a record trailer.
|
|
|
|
* On success, returns the packet encapsulation type.
|
|
|
|
* On error, returns -1 (which is WTAP_ENCAP_PER_PACKET, but we'd
|
|
|
|
* never return that on success).
|
|
|
|
* For metadata packets, returns 0 (which is WTAP_ENCAP_UNKNOWN, but
|
|
|
|
* we'd never return that on success).
|
|
|
|
*/
|
|
|
|
static int
|
2011-05-03 08:49:41 +00:00
|
|
|
netmon_read_rec_trailer(FILE_T fh, int trlr_size, int *err, gchar **err_info)
|
2011-05-03 08:22:25 +00:00
|
|
|
{
|
|
|
|
int bytes_read;
|
|
|
|
union {
|
|
|
|
struct netmonrec_2_1_trlr trlr_2_1;
|
|
|
|
struct netmonrec_2_2_trlr trlr_2_2;
|
|
|
|
struct netmonrec_2_3_trlr trlr_2_3;
|
|
|
|
} trlr;
|
|
|
|
guint16 network;
|
|
|
|
int pkt_encap;
|
|
|
|
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
|
|
bytes_read = file_read(&trlr, trlr_size, fh);
|
|
|
|
if (bytes_read != trlr_size) {
|
|
|
|
*err = file_error(fh, err_info);
|
|
|
|
if (*err == 0 && bytes_read != 0) {
|
|
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
|
|
}
|
|
|
|
return -1; /* error */
|
|
|
|
}
|
|
|
|
|
|
|
|
network = pletohs(trlr.trlr_2_1.network);
|
|
|
|
if ((network & 0xF000) == NETMON_NET_PCAP_BASE) {
|
|
|
|
/*
|
|
|
|
* Converted pcap file - the LINKTYPE_ value
|
|
|
|
* is the network value with 0xF000 masked off.
|
|
|
|
*/
|
|
|
|
network &= 0x0FFF;
|
|
|
|
pkt_encap = wtap_pcap_encap_to_wtap_encap(network);
|
|
|
|
if (pkt_encap == WTAP_ENCAP_UNKNOWN) {
|
|
|
|
*err = WTAP_ERR_UNSUPPORTED_ENCAP;
|
|
|
|
*err_info = g_strdup_printf("netmon: converted pcap network type %u unknown or unsupported",
|
|
|
|
network);
|
|
|
|
return -1; /* error */
|
|
|
|
}
|
|
|
|
} else if (network < NUM_NETMON_ENCAPS) {
|
|
|
|
/*
|
|
|
|
* Regular NetMon encapsulation.
|
|
|
|
*/
|
|
|
|
pkt_encap = netmon_encap[network];
|
|
|
|
if (pkt_encap == WTAP_ENCAP_UNKNOWN) {
|
|
|
|
*err = WTAP_ERR_UNSUPPORTED_ENCAP;
|
|
|
|
*err_info = g_strdup_printf("netmon: network type %u unknown or unsupported",
|
|
|
|
network);
|
|
|
|
return -1; /* error */
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* Special packet type for metadata.
|
|
|
|
*/
|
|
|
|
switch (network) {
|
|
|
|
|
|
|
|
case NETMON_NET_NETEVENT:
|
|
|
|
case NETMON_NET_NETWORK_INFO_EX:
|
|
|
|
case NETMON_NET_PAYLOAD_HEADER:
|
|
|
|
case NETMON_NET_NETWORK_INFO:
|
|
|
|
case NETMON_NET_DNS_CACHE:
|
|
|
|
case NETMON_NET_NETMON_FILTER:
|
|
|
|
/*
|
|
|
|
* Just ignore those record types, for
|
|
|
|
* now. Tell our caller to read the next
|
|
|
|
* record.
|
|
|
|
*/
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
default:
|
|
|
|
*err = WTAP_ERR_UNSUPPORTED_ENCAP;
|
|
|
|
*err_info = g_strdup_printf("netmon: network type %u unknown or unsupported",
|
|
|
|
network);
|
|
|
|
return -1; /* error */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return pkt_encap; /* success */
|
|
|
|
}
|
|
|
|
|
2002-06-04 21:55:38 +00:00
|
|
|
/* Throw away the frame table used by the sequential I/O stream. */
|
2000-03-22 07:06:59 +00:00
|
|
|
static void
|
2002-06-04 21:55:38 +00:00
|
|
|
netmon_sequential_close(wtap *wth)
|
2000-03-22 07:06:59 +00:00
|
|
|
{
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon_t *netmon = (netmon_t *)wth->priv;
|
|
|
|
|
|
|
|
if (netmon->frame_table != NULL) {
|
|
|
|
g_free(netmon->frame_table);
|
|
|
|
netmon->frame_table = NULL;
|
2002-06-04 21:55:38 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-02-26 07:59:54 +00:00
|
|
|
typedef struct {
|
|
|
|
gboolean got_first_record_time;
|
|
|
|
struct wtap_nstime first_record_time;
|
|
|
|
guint32 frame_table_offset;
|
|
|
|
guint32 *frame_table;
|
|
|
|
guint frame_table_index;
|
|
|
|
guint frame_table_size;
|
2011-11-17 20:17:36 +00:00
|
|
|
gboolean no_more_room; /* TRUE if no more records can be written */
|
2010-02-26 07:59:54 +00:00
|
|
|
} netmon_dump_t;
|
2000-03-22 07:06:59 +00:00
|
|
|
|
1999-12-04 05:14:39 +00:00
|
|
|
static const int wtap_encap[] = {
|
|
|
|
-1, /* WTAP_ENCAP_UNKNOWN -> unsupported */
|
|
|
|
1, /* WTAP_ENCAP_ETHERNET -> NDIS Ethernet */
|
2000-09-21 04:41:37 +00:00
|
|
|
2, /* WTAP_ENCAP_TOKEN_RING -> NDIS Token Ring */
|
1999-12-04 05:14:39 +00:00
|
|
|
-1, /* WTAP_ENCAP_SLIP -> unsupported */
|
|
|
|
-1, /* WTAP_ENCAP_PPP -> unsupported */
|
|
|
|
3, /* WTAP_ENCAP_FDDI -> NDIS FDDI */
|
|
|
|
3, /* WTAP_ENCAP_FDDI_BITSWAPPED -> NDIS FDDI */
|
|
|
|
-1, /* WTAP_ENCAP_RAW_IP -> unsupported */
|
|
|
|
-1, /* WTAP_ENCAP_ARCNET -> unsupported */
|
2011-12-22 09:22:35 +00:00
|
|
|
-1, /* WTAP_ENCAP_ARCNET_LINUX -> unsupported */
|
1999-12-04 05:14:39 +00:00
|
|
|
-1, /* WTAP_ENCAP_ATM_RFC1483 -> unsupported */
|
|
|
|
-1, /* WTAP_ENCAP_LINUX_ATM_CLIP -> unsupported */
|
|
|
|
-1, /* WTAP_ENCAP_LAPB -> unsupported*/
|
Rename WTAP_ENCAP_ATM_SNIFFER to WTAP_ENCAP_ATM_PDUS, as it's not just
used for the DOS-based ATM Sniffer. (That's not a great name, but I
couldn't think of a better one.)
Add a new WTAP_ENCAP_ATM_PDUS_UNTRUNCATED encapsulation type for capture
files where reassembled frames don't have trailers, such as the AAL5
trailer, chopped off. That's what at least some versions of the
Windows-based ATM Sniffer appear to have.
Map the ATM capture file type for NetXRay captures to
WTAP_ENCAP_ATM_PDUS_UNTRUNCATED, and put in stuff to fill in what we've
reverse-engineered, so far, for the pseudo-header; there's more that
needs to be done on it, e.g. getting the channel, AAL type, and traffic
type (or inferring them if they're not in the packet header).
svn path=/trunk/; revision=6840
2003-01-03 06:45:45 +00:00
|
|
|
4, /* WTAP_ENCAP_ATM_PDUS -> NDIS WAN (*NOT* ATM!) */
|
1999-12-04 05:14:39 +00:00
|
|
|
};
|
|
|
|
#define NUM_WTAP_ENCAPS (sizeof wtap_encap / sizeof wtap_encap[0])
|
|
|
|
|
1999-12-04 08:32:14 +00:00
|
|
|
/* Returns 0 if we could write the specified encapsulation type,
|
|
|
|
an error indication otherwise. */
|
2012-01-14 10:31:25 +00:00
|
|
|
int netmon_dump_can_write_encap_1_x(int encap)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* Per-packet encapsulations are *not* supported in NetMon 1.x
|
|
|
|
* format.
|
|
|
|
*/
|
|
|
|
if (encap < 0 || (unsigned) encap >= NUM_WTAP_ENCAPS || wtap_encap[encap] == -1)
|
|
|
|
return WTAP_ERR_UNSUPPORTED_ENCAP;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int netmon_dump_can_write_encap_2_x(int encap)
|
1999-12-04 05:14:39 +00:00
|
|
|
{
|
2011-11-17 09:03:09 +00:00
|
|
|
/*
|
|
|
|
* Per-packet encapsulations are supported in NetMon 2.1
|
|
|
|
* format.
|
|
|
|
*/
|
1999-12-04 08:32:14 +00:00
|
|
|
if (encap == WTAP_ENCAP_PER_PACKET)
|
2011-11-17 09:03:09 +00:00
|
|
|
return 0;
|
1999-12-04 05:14:39 +00:00
|
|
|
|
2001-10-25 20:29:24 +00:00
|
|
|
if (encap < 0 || (unsigned) encap >= NUM_WTAP_ENCAPS || wtap_encap[encap] == -1)
|
1999-12-04 08:32:14 +00:00
|
|
|
return WTAP_ERR_UNSUPPORTED_ENCAP;
|
1999-12-04 05:14:39 +00:00
|
|
|
|
1999-12-04 08:32:14 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Returns TRUE on success, FALSE on failure; sets "*err" to an error code on
|
|
|
|
failure */
|
2011-04-12 00:44:44 +00:00
|
|
|
gboolean netmon_dump_open(wtap_dumper *wdh, int *err)
|
1999-12-04 08:32:14 +00:00
|
|
|
{
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon_dump_t *netmon;
|
|
|
|
|
1999-12-04 05:14:39 +00:00
|
|
|
/* We can't fill in all the fields in the file header, as we
|
|
|
|
haven't yet written any packets. As we'll have to rewrite
|
|
|
|
the header when we've written out all the packets, we just
|
|
|
|
skip over the header for now. */
|
2002-03-04 00:25:35 +00:00
|
|
|
if (fseek(wdh->fh, CAPTUREFILE_HEADER_SIZE, SEEK_SET) == -1) {
|
|
|
|
*err = errno;
|
|
|
|
return FALSE;
|
|
|
|
}
|
1999-12-04 05:14:39 +00:00
|
|
|
|
2003-11-06 22:45:28 +00:00
|
|
|
wdh->subtype_write = netmon_dump;
|
|
|
|
wdh->subtype_close = netmon_dump_close;
|
|
|
|
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon = (netmon_dump_t *)g_malloc(sizeof(netmon_dump_t));
|
|
|
|
wdh->priv = (void *)netmon;
|
|
|
|
netmon->frame_table_offset = CAPTUREFILE_HEADER_SIZE;
|
|
|
|
netmon->got_first_record_time = FALSE;
|
|
|
|
netmon->frame_table = NULL;
|
|
|
|
netmon->frame_table_index = 0;
|
|
|
|
netmon->frame_table_size = 0;
|
2011-11-17 20:17:36 +00:00
|
|
|
netmon->no_more_room = FALSE;
|
1999-12-04 05:14:39 +00:00
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Write a record for a packet to a dump file.
|
|
|
|
Returns TRUE on success, FALSE on failure. */
|
|
|
|
static gboolean netmon_dump(wtap_dumper *wdh, const struct wtap_pkthdr *phdr,
|
2011-09-01 09:43:10 +00:00
|
|
|
const union wtap_pseudo_header *pseudo_header, const guint8 *pd, int *err)
|
1999-12-04 05:14:39 +00:00
|
|
|
{
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon_dump_t *netmon = (netmon_dump_t *)wdh->priv;
|
1999-12-04 05:14:39 +00:00
|
|
|
struct netmonrec_1_x_hdr rec_1_x_hdr;
|
|
|
|
struct netmonrec_2_x_hdr rec_2_x_hdr;
|
2011-11-17 09:03:09 +00:00
|
|
|
void *hdrp;
|
|
|
|
size_t rec_size;
|
|
|
|
struct netmonrec_2_1_trlr rec_2_x_trlr;
|
2001-08-25 03:18:48 +00:00
|
|
|
size_t hdr_size;
|
2002-01-24 23:02:56 +00:00
|
|
|
struct netmon_atm_hdr atm_hdr;
|
|
|
|
int atm_hdrsize;
|
2011-11-16 17:54:44 +00:00
|
|
|
gint64 secs;
|
|
|
|
gint32 nsecs;
|
1999-12-04 05:14:39 +00:00
|
|
|
|
2011-11-17 09:03:09 +00:00
|
|
|
if (wdh->encap == WTAP_ENCAP_PER_PACKET) {
|
|
|
|
/*
|
|
|
|
* Is this network type supported?
|
|
|
|
*/
|
|
|
|
if (phdr->pkt_encap < 0 ||
|
|
|
|
(unsigned) phdr->pkt_encap >= NUM_WTAP_ENCAPS ||
|
|
|
|
wtap_encap[phdr->pkt_encap] == -1) {
|
|
|
|
/*
|
|
|
|
* No. Fail.
|
|
|
|
*/
|
|
|
|
*err = WTAP_ERR_UNSUPPORTED_ENCAP;
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Fill in the trailer with the network type.
|
|
|
|
*/
|
|
|
|
phtoles(rec_2_x_trlr.network, wtap_encap[phdr->pkt_encap]);
|
|
|
|
}
|
|
|
|
|
2011-11-17 20:17:36 +00:00
|
|
|
/*
|
|
|
|
* Will the file offset of this frame fit in a 32-bit unsigned
|
|
|
|
* integer?
|
|
|
|
*/
|
|
|
|
if (netmon->no_more_room) {
|
|
|
|
/*
|
|
|
|
* No, so the file is too big for NetMon format to
|
|
|
|
* handle.
|
|
|
|
*/
|
|
|
|
*err = EFBIG;
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
2011-11-16 17:54:44 +00:00
|
|
|
/*
|
|
|
|
* NetMon files have a capture start time in the file header,
|
|
|
|
* and have times relative to that in the packet headers;
|
|
|
|
* pick the time of the first packet as the capture start
|
|
|
|
* time.
|
|
|
|
*
|
|
|
|
* That time has millisecond resolution, so chop any
|
|
|
|
* sub-millisecond part of the time stamp off.
|
|
|
|
*/
|
2000-05-10 22:16:31 +00:00
|
|
|
if (!netmon->got_first_record_time) {
|
2011-11-16 17:54:44 +00:00
|
|
|
netmon->first_record_time.secs = phdr->ts.secs;
|
|
|
|
netmon->first_record_time.nsecs =
|
|
|
|
(phdr->ts.nsecs/1000000)*1000000;
|
2000-05-10 22:16:31 +00:00
|
|
|
netmon->got_first_record_time = TRUE;
|
1999-12-04 05:14:39 +00:00
|
|
|
}
|
2002-08-28 20:30:45 +00:00
|
|
|
|
Rename WTAP_ENCAP_ATM_SNIFFER to WTAP_ENCAP_ATM_PDUS, as it's not just
used for the DOS-based ATM Sniffer. (That's not a great name, but I
couldn't think of a better one.)
Add a new WTAP_ENCAP_ATM_PDUS_UNTRUNCATED encapsulation type for capture
files where reassembled frames don't have trailers, such as the AAL5
trailer, chopped off. That's what at least some versions of the
Windows-based ATM Sniffer appear to have.
Map the ATM capture file type for NetXRay captures to
WTAP_ENCAP_ATM_PDUS_UNTRUNCATED, and put in stuff to fill in what we've
reverse-engineered, so far, for the pseudo-header; there's more that
needs to be done on it, e.g. getting the channel, AAL type, and traffic
type (or inferring them if they're not in the packet header).
svn path=/trunk/; revision=6840
2003-01-03 06:45:45 +00:00
|
|
|
if (wdh->encap == WTAP_ENCAP_ATM_PDUS)
|
2002-04-30 09:21:41 +00:00
|
|
|
atm_hdrsize = sizeof (struct netmon_atm_hdr);
|
2002-01-24 23:02:56 +00:00
|
|
|
else
|
|
|
|
atm_hdrsize = 0;
|
2011-11-16 17:54:44 +00:00
|
|
|
secs = (gint64)(phdr->ts.secs - netmon->first_record_time.secs);
|
|
|
|
nsecs = phdr->ts.nsecs - netmon->first_record_time.nsecs;
|
|
|
|
while (nsecs < 0) {
|
|
|
|
/*
|
|
|
|
* Propagate a borrow into the seconds.
|
|
|
|
* The seconds is a time_t, and can be < 0
|
|
|
|
* (unlikely, as neither UN*X nor DOS
|
|
|
|
* nor the original Mac System existed
|
|
|
|
* before January 1, 1970, 00:00:00 UTC),
|
|
|
|
* while the nanoseconds should be positive,
|
|
|
|
* as in "nanoseconds since the instant of time
|
|
|
|
* represented by the seconds".
|
|
|
|
*
|
|
|
|
* We do not want t to be negative, as, according
|
|
|
|
* to the C90 standard, "if either operand [of /
|
|
|
|
* or %] is negative, whether the result of the
|
|
|
|
* / operator is the largest integer less than or
|
|
|
|
* equal to the algebraic quotient or the smallest
|
|
|
|
* greater than or equal to the algebraic quotient
|
|
|
|
* is implementation-defined, as is the sign of
|
|
|
|
* the result of the % operator", and we want
|
|
|
|
* the result of the division and remainder
|
|
|
|
* operations to be the same on all platforms.
|
|
|
|
*/
|
|
|
|
nsecs += 1000000000;
|
|
|
|
secs--;
|
|
|
|
}
|
1999-12-04 05:14:39 +00:00
|
|
|
switch (wdh->file_type) {
|
|
|
|
|
|
|
|
case WTAP_FILE_NETMON_1_x:
|
2011-11-16 17:54:44 +00:00
|
|
|
rec_1_x_hdr.ts_delta = htolel(secs*1000 + (nsecs + 500000)/1000000);
|
2002-01-24 23:02:56 +00:00
|
|
|
rec_1_x_hdr.orig_len = htoles(phdr->len + atm_hdrsize);
|
|
|
|
rec_1_x_hdr.incl_len = htoles(phdr->caplen + atm_hdrsize);
|
2011-11-17 09:03:09 +00:00
|
|
|
hdrp = &rec_1_x_hdr;
|
1999-12-04 05:14:39 +00:00
|
|
|
hdr_size = sizeof rec_1_x_hdr;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_FILE_NETMON_2_x:
|
2011-11-16 17:54:44 +00:00
|
|
|
rec_2_x_hdr.ts_delta = htolell(secs*1000000 + (nsecs + 500)/1000);
|
2002-01-24 23:02:56 +00:00
|
|
|
rec_2_x_hdr.orig_len = htolel(phdr->len + atm_hdrsize);
|
|
|
|
rec_2_x_hdr.incl_len = htolel(phdr->caplen + atm_hdrsize);
|
2011-11-17 09:03:09 +00:00
|
|
|
hdrp = &rec_2_x_hdr;
|
1999-12-04 05:14:39 +00:00
|
|
|
hdr_size = sizeof rec_2_x_hdr;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
/* We should never get here - our open routine
|
|
|
|
should only get called for the types above. */
|
|
|
|
*err = WTAP_ERR_UNSUPPORTED_FILE_TYPE;
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
2011-11-17 09:03:09 +00:00
|
|
|
/*
|
|
|
|
* Keep track of the record size, as we need to update
|
|
|
|
* the current file offset.
|
|
|
|
*/
|
|
|
|
rec_size = 0;
|
|
|
|
|
2010-06-06 22:19:30 +00:00
|
|
|
if (!wtap_dump_file_write(wdh, hdrp, hdr_size, err))
|
1999-12-04 05:14:39 +00:00
|
|
|
return FALSE;
|
2011-11-17 09:03:09 +00:00
|
|
|
rec_size += hdr_size;
|
2002-01-24 23:02:56 +00:00
|
|
|
|
Rename WTAP_ENCAP_ATM_SNIFFER to WTAP_ENCAP_ATM_PDUS, as it's not just
used for the DOS-based ATM Sniffer. (That's not a great name, but I
couldn't think of a better one.)
Add a new WTAP_ENCAP_ATM_PDUS_UNTRUNCATED encapsulation type for capture
files where reassembled frames don't have trailers, such as the AAL5
trailer, chopped off. That's what at least some versions of the
Windows-based ATM Sniffer appear to have.
Map the ATM capture file type for NetXRay captures to
WTAP_ENCAP_ATM_PDUS_UNTRUNCATED, and put in stuff to fill in what we've
reverse-engineered, so far, for the pseudo-header; there's more that
needs to be done on it, e.g. getting the channel, AAL type, and traffic
type (or inferring them if they're not in the packet header).
svn path=/trunk/; revision=6840
2003-01-03 06:45:45 +00:00
|
|
|
if (wdh->encap == WTAP_ENCAP_ATM_PDUS) {
|
2002-01-24 23:02:56 +00:00
|
|
|
/*
|
|
|
|
* Write the ATM header.
|
|
|
|
* We supply all-zero destination and source addresses.
|
|
|
|
*/
|
|
|
|
memset(&atm_hdr.dest, 0, sizeof atm_hdr.dest);
|
|
|
|
memset(&atm_hdr.src, 0, sizeof atm_hdr.src);
|
2002-07-29 06:09:59 +00:00
|
|
|
atm_hdr.vpi = g_htons(pseudo_header->atm.vpi);
|
|
|
|
atm_hdr.vci = g_htons(pseudo_header->atm.vci);
|
2010-06-06 22:19:30 +00:00
|
|
|
if (!wtap_dump_file_write(wdh, &atm_hdr, sizeof atm_hdr, err))
|
2002-01-24 23:02:56 +00:00
|
|
|
return FALSE;
|
2011-11-17 09:03:09 +00:00
|
|
|
rec_size += sizeof atm_hdr;
|
2002-01-24 23:02:56 +00:00
|
|
|
}
|
|
|
|
|
2010-06-06 22:19:30 +00:00
|
|
|
if (!wtap_dump_file_write(wdh, pd, phdr->caplen, err))
|
1999-12-04 05:14:39 +00:00
|
|
|
return FALSE;
|
2011-11-17 09:03:09 +00:00
|
|
|
rec_size += phdr->caplen;
|
|
|
|
|
|
|
|
if (wdh->encap == WTAP_ENCAP_PER_PACKET) {
|
|
|
|
/*
|
|
|
|
* Write out the trailer.
|
|
|
|
*/
|
|
|
|
if (!wtap_dump_file_write(wdh, &rec_2_x_trlr,
|
|
|
|
sizeof rec_2_x_trlr, err))
|
|
|
|
return FALSE;
|
|
|
|
rec_size += sizeof rec_2_x_trlr;
|
|
|
|
}
|
1999-12-04 05:14:39 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Stash the file offset of this frame.
|
|
|
|
*/
|
2000-05-10 22:16:31 +00:00
|
|
|
if (netmon->frame_table_size == 0) {
|
1999-12-04 05:14:39 +00:00
|
|
|
/*
|
|
|
|
* Haven't yet allocated the buffer for the frame table.
|
|
|
|
*/
|
2012-06-02 14:13:14 +00:00
|
|
|
netmon->frame_table = (guint32 *)g_malloc(1024 * sizeof *netmon->frame_table);
|
2000-05-10 22:16:31 +00:00
|
|
|
netmon->frame_table_size = 1024;
|
1999-12-04 05:14:39 +00:00
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* We've allocated it; are we at the end?
|
|
|
|
*/
|
2000-05-10 22:16:31 +00:00
|
|
|
if (netmon->frame_table_index >= netmon->frame_table_size) {
|
1999-12-04 05:14:39 +00:00
|
|
|
/*
|
|
|
|
* Yes - double the size of the frame table.
|
|
|
|
*/
|
2000-05-10 22:16:31 +00:00
|
|
|
netmon->frame_table_size *= 2;
|
2012-06-02 14:13:14 +00:00
|
|
|
netmon->frame_table = (guint32 *)g_realloc(netmon->frame_table,
|
2000-05-10 22:16:31 +00:00
|
|
|
netmon->frame_table_size * sizeof *netmon->frame_table);
|
1999-12-04 05:14:39 +00:00
|
|
|
}
|
|
|
|
}
|
2011-11-17 20:17:36 +00:00
|
|
|
|
2000-05-10 22:16:31 +00:00
|
|
|
netmon->frame_table[netmon->frame_table_index] =
|
|
|
|
htolel(netmon->frame_table_offset);
|
2011-11-17 20:17:36 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Is this the last record we can write?
|
|
|
|
* I.e., will the frame table offset of the next record not fit
|
|
|
|
* in a 32-bit frame table offset entry?
|
|
|
|
*
|
|
|
|
* (We don't bother checking whether the number of frames
|
|
|
|
* will fit in a 32-bit value, as, even if each record were
|
|
|
|
* 1 byte, if there were more than 2^32-1 packets, the frame
|
|
|
|
* table offset of at least one of those packets will be >
|
|
|
|
* 2^32 - 1.)
|
|
|
|
*
|
|
|
|
* Note: this also catches the unlikely possibility that
|
|
|
|
* the record itself is > 2^32 - 1 bytes long.
|
|
|
|
*/
|
|
|
|
if ((guint64)netmon->frame_table_offset + rec_size > G_MAXUINT32) {
|
|
|
|
/*
|
|
|
|
* Yup, too big.
|
|
|
|
*/
|
|
|
|
netmon->no_more_room = TRUE;
|
|
|
|
}
|
2000-05-10 22:16:31 +00:00
|
|
|
netmon->frame_table_index++;
|
2011-11-17 09:03:09 +00:00
|
|
|
netmon->frame_table_offset += (guint32) rec_size;
|
1999-12-04 05:14:39 +00:00
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Finish writing to a dump file.
|
|
|
|
Returns TRUE on success, FALSE on failure. */
|
|
|
|
static gboolean netmon_dump_close(wtap_dumper *wdh, int *err)
|
|
|
|
{
|
2010-02-26 07:59:54 +00:00
|
|
|
netmon_dump_t *netmon = (netmon_dump_t *)wdh->priv;
|
2001-08-25 03:18:48 +00:00
|
|
|
size_t n_to_write;
|
1999-12-04 05:14:39 +00:00
|
|
|
struct netmon_hdr file_hdr;
|
|
|
|
const char *magicp;
|
2001-08-25 03:18:48 +00:00
|
|
|
size_t magic_size;
|
1999-12-04 05:14:39 +00:00
|
|
|
struct tm *tm;
|
|
|
|
|
2000-05-10 22:16:31 +00:00
|
|
|
/* Write out the frame table. "netmon->frame_table_index" is
|
1999-12-04 05:14:39 +00:00
|
|
|
the number of entries we've put into it. */
|
2000-05-10 22:16:31 +00:00
|
|
|
n_to_write = netmon->frame_table_index * sizeof *netmon->frame_table;
|
2010-06-06 22:19:30 +00:00
|
|
|
if (!wtap_dump_file_write(wdh, netmon->frame_table, n_to_write, err))
|
1999-12-04 05:14:39 +00:00
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
/* Now go fix up the file header. */
|
|
|
|
fseek(wdh->fh, 0, SEEK_SET);
|
|
|
|
memset(&file_hdr, '\0', sizeof file_hdr);
|
|
|
|
switch (wdh->file_type) {
|
|
|
|
|
|
|
|
case WTAP_FILE_NETMON_1_x:
|
|
|
|
magicp = netmon_1_x_magic;
|
|
|
|
magic_size = sizeof netmon_1_x_magic;
|
2007-06-05 17:17:22 +00:00
|
|
|
/* NetMon file version, for 1.x, is 1.1 */
|
1999-12-04 05:14:39 +00:00
|
|
|
file_hdr.ver_major = 1;
|
2001-01-25 21:47:23 +00:00
|
|
|
file_hdr.ver_minor = 1;
|
1999-12-04 05:14:39 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_FILE_NETMON_2_x:
|
|
|
|
magicp = netmon_2_x_magic;
|
|
|
|
magic_size = sizeof netmon_2_x_magic;
|
2007-06-05 17:17:22 +00:00
|
|
|
/*
|
|
|
|
* NetMon file version, for 2.x, is 2.0;
|
|
|
|
* for 3.0, it's 2.1.
|
2011-11-17 09:03:09 +00:00
|
|
|
*
|
|
|
|
* If the file encapsulation is WTAP_ENCAP_PER_PACKET,
|
|
|
|
* we need version 2.1.
|
|
|
|
*
|
|
|
|
* XXX - version 2.3 supports UTC time stamps; when
|
|
|
|
* should we use it? According to the file format
|
|
|
|
* documentation, NetMon 3.3 "cannot properly
|
|
|
|
* interpret" the UTC timestamp information; does
|
|
|
|
* that mean it ignores it and uses the local-time
|
|
|
|
* start time and time deltas, or mishandles them?
|
|
|
|
* Also, NetMon 3.1 and earlier can't read version
|
|
|
|
* 2.2, much less version 2.3.
|
2007-06-05 17:17:22 +00:00
|
|
|
*/
|
2001-01-25 21:47:23 +00:00
|
|
|
file_hdr.ver_major = 2;
|
2011-11-17 09:03:09 +00:00
|
|
|
file_hdr.ver_minor =
|
|
|
|
(wdh->encap == WTAP_ENCAP_PER_PACKET) ? 1 : 0;
|
1999-12-04 05:14:39 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
/* We should never get here - our open routine
|
|
|
|
should only get called for the types above. */
|
2002-05-04 10:00:18 +00:00
|
|
|
if (err != NULL)
|
|
|
|
*err = WTAP_ERR_UNSUPPORTED_FILE_TYPE;
|
1999-12-04 05:14:39 +00:00
|
|
|
return FALSE;
|
|
|
|
}
|
2010-06-06 22:19:30 +00:00
|
|
|
if (!wtap_dump_file_write(wdh, magicp, magic_size, err))
|
1999-12-04 05:14:39 +00:00
|
|
|
return FALSE;
|
|
|
|
|
2011-11-17 09:03:09 +00:00
|
|
|
if (wdh->encap == WTAP_ENCAP_PER_PACKET) {
|
|
|
|
/*
|
|
|
|
* We're writing NetMon 2.1 format, so the media
|
|
|
|
* type in the file header is irrelevant. Set it
|
|
|
|
* to 1, just as Network Monitor does.
|
|
|
|
*/
|
|
|
|
file_hdr.network = htoles(1);
|
|
|
|
} else
|
|
|
|
file_hdr.network = htoles(wtap_encap[wdh->encap]);
|
2005-08-24 21:31:56 +00:00
|
|
|
tm = localtime(&netmon->first_record_time.secs);
|
2002-05-04 10:00:18 +00:00
|
|
|
if (tm != NULL) {
|
|
|
|
file_hdr.ts_year = htoles(1900 + tm->tm_year);
|
|
|
|
file_hdr.ts_month = htoles(tm->tm_mon + 1);
|
|
|
|
file_hdr.ts_dow = htoles(tm->tm_wday);
|
|
|
|
file_hdr.ts_day = htoles(tm->tm_mday);
|
|
|
|
file_hdr.ts_hour = htoles(tm->tm_hour);
|
|
|
|
file_hdr.ts_min = htoles(tm->tm_min);
|
|
|
|
file_hdr.ts_sec = htoles(tm->tm_sec);
|
|
|
|
} else {
|
|
|
|
file_hdr.ts_year = htoles(1900 + 0);
|
|
|
|
file_hdr.ts_month = htoles(0 + 1);
|
|
|
|
file_hdr.ts_dow = htoles(0);
|
|
|
|
file_hdr.ts_day = htoles(0);
|
|
|
|
file_hdr.ts_hour = htoles(0);
|
|
|
|
file_hdr.ts_min = htoles(0);
|
|
|
|
file_hdr.ts_sec = htoles(0);
|
|
|
|
}
|
2011-11-17 09:03:09 +00:00
|
|
|
file_hdr.ts_msec = htoles(netmon->first_record_time.nsecs/1000000);
|
2000-05-10 22:16:31 +00:00
|
|
|
file_hdr.frametableoffset = htolel(netmon->frame_table_offset);
|
1999-12-04 05:14:39 +00:00
|
|
|
file_hdr.frametablelength =
|
2000-05-10 22:16:31 +00:00
|
|
|
htolel(netmon->frame_table_index * sizeof *netmon->frame_table);
|
2010-06-06 22:19:30 +00:00
|
|
|
if (!wtap_dump_file_write(wdh, &file_hdr, sizeof file_hdr, err))
|
1999-12-04 05:14:39 +00:00
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|