9011ad1030
Only CAN protocol is supported. Extra information available in J1939 entries is ignored since the J1939 wireshark dissector works with raw CAN frames and makes no use of this extra information. The log format may also encapsulate LIN messages which are not supported by wireshark and thus are ignored. The only limitation is that relative timestamp format is not supported. If a file defines relative format of timestamps, packets are extracted, but timestamps are omitted, since random access deems impossible without reparsing the whole file up to the packet of interest. In order to support relative timestamps we need to parse the whole file at once on open and either dump into a temporary PCAP file or keep messages in a private list and provide access to them on read()/seek_read(). The change also creates a separate header for CAN frame structure definitions which are used by several file readers (candump and busmaster for now). Bug: 15939 Change-Id: I87c5555e4e5e1b142b9984b24544b2591d494fbc Reviewed-on: https://code.wireshark.org/review/34083 Petri-Dish: Anders Broman <a.broman58@gmail.com> Tested-by: Petri Dish Buildbot Reviewed-by: Anders Broman <a.broman58@gmail.com>
137 lines
2.5 KiB
C
137 lines
2.5 KiB
C
/* busmaster_priv.h
|
|
*
|
|
* Wiretap Library
|
|
* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
|
|
*
|
|
* Support for Busmaster log file format
|
|
* Copyright (c) 2019 by Maksim Salau <maksim.salau@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#ifndef BUSMASTER_PRIV_H__
|
|
#define BUSMASTER_PRIV_H__
|
|
|
|
#include <gmodule.h>
|
|
#include <wiretap/wtap.h>
|
|
#include <wiretap/socketcan.h>
|
|
#include <wsutil/ws_printf.h>
|
|
|
|
//#define BUSMASTER_DEBUG
|
|
//#define BUSMASTER_PARSER_TRACE
|
|
|
|
typedef enum {
|
|
LOG_ENTRY_ERROR = -1,
|
|
LOG_ENTRY_NONE = 0,
|
|
LOG_ENTRY_EMPTY,
|
|
LOG_ENTRY_HEADER,
|
|
LOG_ENTRY_FOOTER,
|
|
LOG_ENTRY_FOOTER_AND_HEADER,
|
|
LOG_ENTRY_MSG,
|
|
LOG_ENTRY_EOF,
|
|
} log_entry_type_t;
|
|
|
|
typedef enum {
|
|
PROTOCOL_UNKNOWN = 0,
|
|
PROTOCOL_CAN,
|
|
PROTOCOL_LIN,
|
|
PROTOCOL_J1939,
|
|
} protocol_t;
|
|
|
|
typedef enum {
|
|
DATA_MODE_UNKNOWN = 0,
|
|
DATA_MODE_HEX,
|
|
DATA_MODE_DEC,
|
|
} data_mode_t;
|
|
|
|
typedef enum {
|
|
TIME_MODE_UNKNOWN = 0,
|
|
TIME_MODE_ABSOLUTE,
|
|
TIME_MODE_SYSTEM,
|
|
TIME_MODE_RELATIVE,
|
|
} time_mode_t;
|
|
|
|
typedef enum {
|
|
MSG_TYPE_STD,
|
|
MSG_TYPE_EXT,
|
|
MSG_TYPE_STD_RTR,
|
|
MSG_TYPE_EXT_RTR,
|
|
MSG_TYPE_STD_FD,
|
|
MSG_TYPE_EXT_FD,
|
|
MSG_TYPE_ERR,
|
|
} msg_type_t;
|
|
|
|
typedef struct {
|
|
guint year;
|
|
guint month;
|
|
guint day;
|
|
} msg_date_t;
|
|
|
|
typedef struct {
|
|
guint hours;
|
|
guint minutes;
|
|
guint seconds;
|
|
guint micros;
|
|
} msg_time_t;
|
|
|
|
typedef struct {
|
|
msg_date_t date;
|
|
msg_time_t time;
|
|
} msg_date_time_t;
|
|
|
|
typedef struct {
|
|
guint length;
|
|
guint8 data[CANFD_MAX_DLEN];
|
|
} msg_data_t;
|
|
|
|
typedef struct {
|
|
msg_time_t timestamp;
|
|
msg_type_t type;
|
|
guint32 id;
|
|
msg_data_t data;
|
|
} msg_t;
|
|
|
|
typedef struct {
|
|
gint64 v0;
|
|
gint64 v1;
|
|
gint64 v2;
|
|
gint64 v3;
|
|
} token_t;
|
|
|
|
typedef struct {
|
|
gint64 file_start_offset;
|
|
gint64 file_end_offset;
|
|
protocol_t protocol;
|
|
data_mode_t data_mode;
|
|
time_mode_t time_mode;
|
|
msg_date_t start_date;
|
|
msg_time_t start_time;
|
|
} busmaster_priv_t;
|
|
|
|
typedef struct {
|
|
FILE_T fh;
|
|
gint64 file_bytes_read;
|
|
|
|
gchar *parse_error;
|
|
int err;
|
|
gchar *err_info;
|
|
|
|
token_t token;
|
|
|
|
log_entry_type_t entry_type;
|
|
busmaster_priv_t header;
|
|
msg_t msg;
|
|
} busmaster_state_t;
|
|
|
|
gboolean
|
|
run_busmaster_parser(busmaster_state_t *state,
|
|
int *err, gchar **err_info);
|
|
|
|
#ifdef BUSMASTER_DEBUG
|
|
#define busmaster_debug_printf(...) ws_debug_printf(__VA_ARGS__)
|
|
#else
|
|
#define busmaster_debug_printf(...) (void)0
|
|
#endif
|
|
|
|
#endif /* BUSMASTER_PRIV_H__ */
|