![Guy Harris](/assets/img/avatar_default.png)
WTAP_ENCAP_ARCNET_LINUX; update various tables mapping Wiretap encapsulations to file-type encapsulations. Get rid of some trailing "sorry, that's not supported" entries while we're at it. svn path=/trunk/; revision=40274
491 lines
15 KiB
C
491 lines
15 KiB
C
/* 5views.c
|
|
*
|
|
* $Id$
|
|
*
|
|
* Wiretap Library
|
|
* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
|
|
#include "wtap-int.h"
|
|
#include "file_wrappers.h"
|
|
#include "buffer.h"
|
|
#include "5views.h"
|
|
|
|
|
|
typedef struct
|
|
{
|
|
guint32 Signature;
|
|
guint32 Size; /* Total size of Header in bytes (included Signature) */
|
|
guint32 Version; /* Identify version and so the format of this record */
|
|
guint32 DataSize; /* Total size of data included in the Info Record (except the header size) */
|
|
guint32 FileType; /* Type of the file */
|
|
guint32 Reserved[3]; /* Reserved for future use */
|
|
}t_5VW_Info_Header;
|
|
|
|
typedef struct
|
|
{
|
|
guint32 Type; /* Id of the attribute */
|
|
guint16 Size; /* Size of the data part of the attribute (not including header size) */
|
|
guint16 Nb; /* Number of elements */
|
|
}t_5VW_Attributes_Header;
|
|
|
|
|
|
#define CST_5VW_INFO_HEADER_KEY 0xAAAAAAAAU /* signature */
|
|
|
|
#define CST_5VW_INFO_RECORD_VERSION 0x00010000U /* version */
|
|
|
|
#define CST_5VW_DECALE_FILE_TYPE 24
|
|
#define CST_5VW_SECTION_CAPTURES 0x08U
|
|
#define CST_5VW_CAPTURES_FILE (CST_5VW_SECTION_CAPTURES << CST_5VW_DECALE_FILE_TYPE) /* 0x08000000 */
|
|
#define CST_5VW_FLAT_FILE 0x10000000U
|
|
#define CST_5VW_CAPTURE_FILEID (CST_5VW_FLAT_FILE | CST_5VW_CAPTURES_FILE)
|
|
#define CST_5VW_FAMILY_CAP_ETH 0x01U
|
|
#define CST_5VW_FAMILY_CAP_WAN 0x02U
|
|
#define CST_5VW_DECALE_FILE_FAMILY 12
|
|
#define CST_5VW_CAP_ETH (CST_5VW_FAMILY_CAP_ETH << CST_5VW_DECALE_FILE_FAMILY) /* 0x00001000 */
|
|
#define CST_5VW_CAP_WAN (CST_5VW_FAMILY_CAP_WAN << CST_5VW_DECALE_FILE_FAMILY) /* 0x00002000 */
|
|
#define CST_5VW_CAPTURE_ETH_FILEID (CST_5VW_CAPTURE_FILEID | CST_5VW_CAP_ETH)
|
|
#define CST_5VW_CAPTURE_WAN_FILEID (CST_5VW_CAPTURE_FILEID | CST_5VW_CAP_WAN)
|
|
|
|
#define CST_5VW_CAPTURE_FILE_TYPE_MASK 0xFF000000U
|
|
|
|
#define CST_5VW_FRAME_RECORD 0x00000000U
|
|
#define CST_5VW_RECORDS_HEADER_KEY 0x3333EEEEU
|
|
|
|
typedef struct
|
|
{
|
|
t_5VW_Info_Header Info_Header;
|
|
t_5VW_Attributes_Header HeaderDateCreation;
|
|
guint32 Time;
|
|
t_5VW_Attributes_Header HeaderNbFrames;
|
|
guint32 TramesStockeesInFile;
|
|
}t_5VW_Capture_Header;
|
|
|
|
typedef struct
|
|
{
|
|
guint32 Key; /* 0x3333EEEE */
|
|
guint16 HeaderSize; /* Actual size of this header in bytes (32) */
|
|
guint16 HeaderType; /* Exact type of this header (0x4000) */
|
|
guint32 RecType; /* Type of record */
|
|
guint32 RecSubType; /* Subtype of record */
|
|
guint32 RecSize; /* Size of one record */
|
|
guint32 RecNb; /* Number of records */
|
|
guint32 Utc;
|
|
guint32 NanoSecondes;
|
|
guint32 RecInfo; /* Info about Alarm / Event / Frame captured */
|
|
}t_5VW_TimeStamped_Header;
|
|
|
|
|
|
#define CST_5VW_IA_CAP_INF_NB_TRAMES_STOCKEES 0x20000000U
|
|
#define CST_5VW_IA_DATE_CREATION 0x80000007U /* Struct t_Attrib_Date_Create */
|
|
#define CST_5VW_TIMESTAMPED_HEADER_TYPE 0x4000U
|
|
#define CST_5VW_CAPTURES_RECORD (CST_5VW_SECTION_CAPTURES << 28) /* 0x80000000 */
|
|
#define CST_5VW_SYSTEM_RECORD 0x00000000U
|
|
|
|
static gboolean _5views_read(wtap *wth, int *err, gchar **err_info,
|
|
gint64 *data_offset);
|
|
static gboolean _5views_read_rec_data(FILE_T fh, guint8 *pd, int length,
|
|
int *err, gchar **err_info);
|
|
static int _5views_read_header(wtap *wth, FILE_T fh,
|
|
t_5VW_TimeStamped_Header *hdr, int *err, gchar **err_info);
|
|
static gboolean _5views_seek_read(wtap *wth, gint64 seek_off,
|
|
union wtap_pseudo_header *pseudo_header, guint8 *pd, int length,
|
|
int *err, gchar **err_info);
|
|
|
|
|
|
static gboolean _5views_dump(wtap_dumper *wdh, const struct wtap_pkthdr *phdr,
|
|
const union wtap_pseudo_header *pseudo_header, const guint8 *pd, int *err);
|
|
static gboolean _5views_dump_close(wtap_dumper *wdh, int *err);
|
|
|
|
|
|
int _5views_open(wtap *wth, int *err, gchar **err_info)
|
|
{
|
|
int bytes_read;
|
|
t_5VW_Capture_Header Capture_Header;
|
|
int encap = WTAP_ENCAP_UNKNOWN;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(&Capture_Header.Info_Header, sizeof(t_5VW_Info_Header), wth->fh);
|
|
if (bytes_read != sizeof(t_5VW_Info_Header)) {
|
|
*err = file_error(wth->fh, err_info);
|
|
if (*err != 0)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
wth->data_offset+=bytes_read;
|
|
|
|
/* Check whether that's 5Views format or not */
|
|
if(Capture_Header.Info_Header.Signature != CST_5VW_INFO_HEADER_KEY)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Check Version */
|
|
Capture_Header.Info_Header.Version =
|
|
pletohl(&Capture_Header.Info_Header.Version);
|
|
switch (Capture_Header.Info_Header.Version) {
|
|
|
|
case CST_5VW_INFO_RECORD_VERSION:
|
|
break;
|
|
|
|
default:
|
|
*err = WTAP_ERR_UNSUPPORTED;
|
|
*err_info = g_strdup_printf("5views: header version %u unsupported", Capture_Header.Info_Header.Version);
|
|
return -1;
|
|
}
|
|
|
|
/* Check File Type */
|
|
Capture_Header.Info_Header.FileType =
|
|
pletohl(&Capture_Header.Info_Header.FileType);
|
|
if((Capture_Header.Info_Header.FileType & CST_5VW_CAPTURE_FILE_TYPE_MASK) != CST_5VW_CAPTURE_FILEID)
|
|
{
|
|
*err = WTAP_ERR_UNSUPPORTED;
|
|
*err_info = g_strdup_printf("5views: file is not a capture file (filetype is %u)", Capture_Header.Info_Header.Version);
|
|
return -1;
|
|
}
|
|
|
|
/* Check possible Encap */
|
|
switch (Capture_Header.Info_Header.FileType) {
|
|
case CST_5VW_CAPTURE_ETH_FILEID:
|
|
encap = WTAP_ENCAP_ETHERNET;
|
|
break;
|
|
/* case CST_5VW_CAPTURE_WAN_FILEID:
|
|
break;
|
|
*/
|
|
default:
|
|
*err = WTAP_ERR_UNSUPPORTED_ENCAP;
|
|
*err_info = g_strdup_printf("5views: network type %u unknown or unsupported",
|
|
Capture_Header.Info_Header.FileType);
|
|
return -1;
|
|
}
|
|
|
|
/* read the remaining header information */
|
|
bytes_read = file_read(&Capture_Header.HeaderDateCreation, sizeof (t_5VW_Capture_Header) - sizeof(t_5VW_Info_Header), wth->fh);
|
|
if (bytes_read != sizeof (t_5VW_Capture_Header)- sizeof(t_5VW_Info_Header) ) {
|
|
*err = file_error(wth->fh, err_info);
|
|
if (*err != 0)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
wth->data_offset+=bytes_read;
|
|
|
|
/* This is a 5views capture file */
|
|
wth->file_type = WTAP_FILE_5VIEWS;
|
|
wth->subtype_read = _5views_read;
|
|
wth->subtype_seek_read = _5views_seek_read;
|
|
wth->file_encap = encap;
|
|
wth->snapshot_length = 0; /* not available in header */
|
|
wth->tsprecision = WTAP_FILE_TSPREC_NSEC;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Read the next packet */
|
|
static gboolean
|
|
_5views_read(wtap *wth, int *err, gchar **err_info, gint64 *data_offset)
|
|
{
|
|
t_5VW_TimeStamped_Header TimeStamped_Header;
|
|
int bytes_read;
|
|
guint packet_size;
|
|
guint orig_size;
|
|
|
|
do
|
|
{
|
|
bytes_read = _5views_read_header(wth, wth->fh, &TimeStamped_Header, err, err_info);
|
|
if (bytes_read == -1) {
|
|
/*
|
|
* We failed to read the header.
|
|
*/
|
|
return FALSE;
|
|
}
|
|
wth->data_offset += bytes_read;
|
|
|
|
TimeStamped_Header.Key = pletohl(&TimeStamped_Header.Key);
|
|
if(TimeStamped_Header.Key != CST_5VW_RECORDS_HEADER_KEY)
|
|
return FALSE;
|
|
|
|
TimeStamped_Header.RecSubType =
|
|
pletohl(&TimeStamped_Header.RecSubType);
|
|
TimeStamped_Header.RecSize =
|
|
pletohl(&TimeStamped_Header.RecSize);
|
|
if(TimeStamped_Header.RecSubType != CST_5VW_FRAME_RECORD) {
|
|
if (file_seek(wth->fh, TimeStamped_Header.RecSize, SEEK_CUR, err) == -1)
|
|
return FALSE;
|
|
wth->data_offset += TimeStamped_Header.RecSize;
|
|
} else
|
|
break;
|
|
} while (1);
|
|
|
|
packet_size = TimeStamped_Header.RecSize;
|
|
orig_size = TimeStamped_Header.RecSize;
|
|
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.
|
|
*/
|
|
*err = WTAP_ERR_BAD_FILE;
|
|
*err_info = g_strdup_printf("5views: File has %u-byte packet, bigger than maximum of %u",
|
|
packet_size, WTAP_MAX_PACKET_SIZE);
|
|
return FALSE;
|
|
}
|
|
|
|
*data_offset = wth->data_offset;
|
|
|
|
buffer_assure_space(wth->frame_buffer, packet_size);
|
|
if (!_5views_read_rec_data(wth->fh, buffer_start_ptr(wth->frame_buffer),
|
|
packet_size, err, err_info))
|
|
return FALSE; /* Read error */
|
|
|
|
wth->data_offset += packet_size;
|
|
TimeStamped_Header.Utc = pletohl(&TimeStamped_Header.Utc);
|
|
TimeStamped_Header.NanoSecondes =
|
|
pletohl(&TimeStamped_Header.NanoSecondes);
|
|
wth->phdr.ts.secs = TimeStamped_Header.Utc;
|
|
wth->phdr.ts.nsecs = TimeStamped_Header.NanoSecondes;
|
|
wth->phdr.caplen = packet_size;
|
|
wth->phdr.len = orig_size;
|
|
|
|
switch (wth->file_encap) {
|
|
|
|
case WTAP_ENCAP_ETHERNET:
|
|
/* We assume there's no FCS in this frame. */
|
|
wth->pseudo_header.eth.fcs_len = 0;
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
_5views_read_rec_data(FILE_T fh, guint8 *pd, int length, int *err,
|
|
gchar **err_info)
|
|
{
|
|
int bytes_read;
|
|
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(pd, length, fh);
|
|
|
|
if (bytes_read != length) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* Read the header of the next packet; if "silent" is TRUE, don't complain
|
|
to the console, as we're testing to see if the file appears to be of a
|
|
particular type.
|
|
|
|
Return -1 on an error, or the number of bytes of header read on success. */
|
|
static int
|
|
_5views_read_header(wtap *wth _U_, FILE_T fh, t_5VW_TimeStamped_Header *hdr, int *err, gchar **err_info)
|
|
{
|
|
int bytes_read, bytes_to_read;
|
|
|
|
bytes_to_read = sizeof(t_5VW_TimeStamped_Header);
|
|
|
|
/* Read record header. */
|
|
bytes_read = file_read(hdr, bytes_to_read, fh);
|
|
if (bytes_read != bytes_to_read) {
|
|
*err = file_error(fh, err_info);
|
|
if (*err == 0 && bytes_read != 0) {
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
return bytes_read;
|
|
}
|
|
|
|
static gboolean
|
|
_5views_seek_read(wtap *wth, gint64 seek_off,
|
|
union wtap_pseudo_header *pseudo_header, guint8 *pd, int length,
|
|
int *err, gchar **err_info)
|
|
{
|
|
if (file_seek(wth->random_fh, seek_off, SEEK_SET, err) == -1)
|
|
return FALSE;
|
|
/*
|
|
* Read the packet data.
|
|
*/
|
|
if (!_5views_read_rec_data(wth->random_fh, pd, length, err, err_info))
|
|
return FALSE;
|
|
|
|
switch (wth->file_encap) {
|
|
|
|
case WTAP_ENCAP_ETHERNET:
|
|
/* We assume there's no FCS in this frame. */
|
|
pseudo_header->eth.fcs_len = 0;
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
|
|
typedef struct {
|
|
guint32 nframes;
|
|
} _5views_dump_t;
|
|
|
|
static const int wtap_encap[] = {
|
|
-1, /* WTAP_ENCAP_UNKNOWN -> unsupported */
|
|
CST_5VW_CAPTURE_ETH_FILEID, /* WTAP_ENCAP_ETHERNET -> Ethernet */
|
|
};
|
|
#define NUM_WTAP_ENCAPS (sizeof wtap_encap / sizeof wtap_encap[0])
|
|
|
|
/* Returns 0 if we could write the specified encapsulation type,
|
|
an error indication otherwise. */
|
|
int _5views_dump_can_write_encap(int encap)
|
|
{
|
|
/* Per-packet encapsulations aren't supported. */
|
|
if (encap == WTAP_ENCAP_PER_PACKET)
|
|
return WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED;
|
|
|
|
if (encap < 0 || (unsigned) encap >= NUM_WTAP_ENCAPS || wtap_encap[encap] == -1)
|
|
return WTAP_ERR_UNSUPPORTED_ENCAP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Returns TRUE on success, FALSE on failure; sets "*err" to an error code on
|
|
failure */
|
|
gboolean _5views_dump_open(wtap_dumper *wdh, int *err)
|
|
{
|
|
_5views_dump_t *_5views;
|
|
|
|
/* 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. */
|
|
if (fseek(wdh->fh, sizeof(t_5VW_Capture_Header), SEEK_SET) == -1) {
|
|
*err = errno;
|
|
return FALSE;
|
|
}
|
|
|
|
/* This is a 5Views file */
|
|
wdh->subtype_write = _5views_dump;
|
|
wdh->subtype_close = _5views_dump_close;
|
|
_5views = (_5views_dump_t *)g_malloc(sizeof(_5views_dump_t));
|
|
wdh->priv = (void *)_5views;
|
|
_5views->nframes = 0;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Write a record for a packet to a dump file.
|
|
Returns TRUE on success, FALSE on failure. */
|
|
static gboolean _5views_dump(wtap_dumper *wdh,
|
|
const struct wtap_pkthdr *phdr,
|
|
const union wtap_pseudo_header *pseudo_header _U_,
|
|
const guint8 *pd, int *err)
|
|
{
|
|
_5views_dump_t *_5views = (_5views_dump_t *)wdh->priv;
|
|
static t_5VW_TimeStamped_Header HeaderFrame;
|
|
|
|
/* Frame Header */
|
|
/* constant fields */
|
|
HeaderFrame.Key = htolel(CST_5VW_RECORDS_HEADER_KEY);
|
|
HeaderFrame.HeaderSize = htoles(sizeof(t_5VW_TimeStamped_Header));
|
|
HeaderFrame.HeaderType = htoles(CST_5VW_TIMESTAMPED_HEADER_TYPE);
|
|
HeaderFrame.RecType = htolel(CST_5VW_CAPTURES_RECORD | CST_5VW_SYSTEM_RECORD);
|
|
HeaderFrame.RecSubType = htolel(CST_5VW_FRAME_RECORD);
|
|
HeaderFrame.RecNb = htolel(1);
|
|
|
|
/* record-dependant fields */
|
|
HeaderFrame.Utc = htolel(phdr->ts.secs);
|
|
HeaderFrame.NanoSecondes = htolel(phdr->ts.nsecs);
|
|
HeaderFrame.RecSize = htolel(phdr->len);
|
|
HeaderFrame.RecInfo = htolel(0);
|
|
|
|
/* write the record header */
|
|
if (!wtap_dump_file_write(wdh, &HeaderFrame,
|
|
sizeof(t_5VW_TimeStamped_Header), err))
|
|
return FALSE;
|
|
|
|
/* write the data */
|
|
if (!wtap_dump_file_write(wdh, pd, phdr->caplen, err))
|
|
return FALSE;
|
|
|
|
_5views->nframes ++;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean _5views_dump_close(wtap_dumper *wdh, int *err)
|
|
{
|
|
_5views_dump_t *_5views = (_5views_dump_t *)wdh->priv;
|
|
t_5VW_Capture_Header file_hdr;
|
|
|
|
if (fseek(wdh->fh, 0, SEEK_SET) == -1) {
|
|
*err = errno;
|
|
return FALSE;
|
|
}
|
|
|
|
/* fill in the Info_Header */
|
|
file_hdr.Info_Header.Signature = htolel(CST_5VW_INFO_HEADER_KEY);
|
|
file_hdr.Info_Header.Size = htolel(sizeof(t_5VW_Info_Header)); /* Total size of Header in bytes (included Signature) */
|
|
file_hdr.Info_Header.Version = htolel(CST_5VW_INFO_RECORD_VERSION); /* Identify version and so the format of this record */
|
|
file_hdr.Info_Header.DataSize = htolel(sizeof(t_5VW_Attributes_Header)
|
|
+ sizeof(guint32)
|
|
+ sizeof(t_5VW_Attributes_Header)
|
|
+ sizeof(guint32));
|
|
/* Total size of data included in the Info Record (except the header size) */
|
|
file_hdr.Info_Header.FileType = htolel(wtap_encap[wdh->encap]); /* Type of the file */
|
|
file_hdr.Info_Header.Reserved[0] = 0; /* Reserved for future use */
|
|
file_hdr.Info_Header.Reserved[1] = 0; /* Reserved for future use */
|
|
file_hdr.Info_Header.Reserved[2] = 0; /* Reserved for future use */
|
|
|
|
/* fill in the HeaderDateCreation */
|
|
file_hdr.HeaderDateCreation.Type = htolel(CST_5VW_IA_DATE_CREATION); /* Id of the attribute */
|
|
file_hdr.HeaderDateCreation.Size = htoles(sizeof(guint32)); /* Size of the data part of the attribute (not including header size) */
|
|
file_hdr.HeaderDateCreation.Nb = htoles(1); /* Number of elements */
|
|
|
|
/* fill in the Time field */
|
|
#ifdef _WIN32
|
|
_tzset();
|
|
#endif
|
|
file_hdr.Time = htolel(time(NULL));
|
|
|
|
/* fill in the Time field */
|
|
file_hdr.HeaderNbFrames.Type = htolel(CST_5VW_IA_CAP_INF_NB_TRAMES_STOCKEES); /* Id of the attribute */
|
|
file_hdr.HeaderNbFrames.Size = htoles(sizeof(guint32)); /* Size of the data part of the attribute (not including header size) */
|
|
file_hdr.HeaderNbFrames.Nb = htoles(1); /* Number of elements */
|
|
|
|
/* fill in the number of frames saved */
|
|
file_hdr.TramesStockeesInFile = htolel(_5views->nframes);
|
|
|
|
/* Write the file header. */
|
|
if (!wtap_dump_file_write(wdh, &file_hdr, sizeof(t_5VW_Capture_Header),
|
|
err))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|