forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
Don't scatter them amongst various other headers. Change-Id: I243954222cd4ad3e6bbe8b4d1dd25ee4952f87d6 Reviewed-on: https://code.wireshark.org/review/21277 Reviewed-by: Guy Harris <guy@alum.mit.edu>
131 lines
5.4 KiB
C
131 lines
5.4 KiB
C
/* capture_dissectors.h
|
|
* Routines for handling capture dissectors
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef __CAPTURE_DISSECTORS_H__
|
|
#define __CAPTURE_DISSECTORS_H__
|
|
|
|
#include "ws_symbol_export.h"
|
|
#include <wiretap/wtap.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
/** @file
|
|
*/
|
|
|
|
/** Table of counts of packets of various types. */
|
|
typedef struct {
|
|
GHashTable* counts_hash; /* packet counters keyed by proto */
|
|
gint other; /* Packets not counted in the hash total */
|
|
gint total; /* Cache of total packets */
|
|
} packet_counts;
|
|
|
|
typedef struct _capture_packet_info {
|
|
GHashTable *counts;
|
|
} capture_packet_info_t;
|
|
|
|
typedef struct capture_dissector_handle* capture_dissector_handle_t;
|
|
|
|
/** callback function definition for capture dissectors */
|
|
typedef gboolean (*capture_dissector_t)(const guchar *pd, int offset, int len, capture_packet_info_t *cpinfo, const union wtap_pseudo_header *pseudo_header);
|
|
|
|
/* a protocol uses the function to register a capture sub-dissector table
|
|
* @param[in] name Name of capture sub-dissector table.
|
|
* @param[in] ui_name Name string used when referring to capture sub-dissector table in UI.
|
|
*/
|
|
WS_DLL_PUBLIC void register_capture_dissector_table(const char *name, const char *ui_name);
|
|
|
|
/* Create an anonymous handle for a capture dissector
|
|
* @param[in] dissector capture dissector function.
|
|
* @param[in] proto Protocol associated with capture dissector function.
|
|
* @return Handle created for capture dissector
|
|
*/
|
|
WS_DLL_PUBLIC capture_dissector_handle_t create_capture_dissector_handle(capture_dissector_t dissector, const int proto);
|
|
|
|
/* Find a dissector by name
|
|
* @param[in] name Name of capture dissector
|
|
* @return Handle for capture dissector if found, NULL otherwise
|
|
*/
|
|
WS_DLL_PUBLIC capture_dissector_handle_t find_capture_dissector(const char *name);
|
|
|
|
/* Register a new capture dissector
|
|
* @param[in] name Name of capture dissector function.
|
|
* @param[in] dissector capture dissector function.
|
|
* @param[in] proto Protocol associated with capture dissector function.
|
|
* @return Handle created for capture dissector
|
|
*/
|
|
WS_DLL_PUBLIC capture_dissector_handle_t register_capture_dissector(const char *name, capture_dissector_t dissector, int proto);
|
|
|
|
/* Add an entry to a uint capture dissector table
|
|
* @param[in] name Name of capture dissector table
|
|
* @param[in] pattern Numerical value associated with capture dissector
|
|
* @param[in] handle Handle to capture dissector
|
|
*/
|
|
WS_DLL_PUBLIC void capture_dissector_add_uint(const char *name, const guint32 pattern, capture_dissector_handle_t handle);
|
|
|
|
/* Look for a given value in a given uint capture dissector table and, if found,
|
|
* call the dissector with the arguments supplied, and return TRUE,
|
|
* otherwise return FALSE
|
|
* @param[in] name Name of capture dissector table
|
|
* @param[in] pattern Numerical value associated with capture dissector
|
|
* @param[in] pd Data buffer of captured bytes
|
|
* @param[in] offset Current offset into pd
|
|
* @param[in] len Length of pd
|
|
* @param[in] cpinfo Capture statistics
|
|
* @param[in] pseudo_header Wiretap pseudo header information
|
|
*/
|
|
WS_DLL_PUBLIC gboolean try_capture_dissector(const char* name, const guint32 pattern, const guchar *pd, int offset, int len, capture_packet_info_t *cpinfo, const union wtap_pseudo_header *pseudo_header);
|
|
|
|
/* Call a capture dissector through a handle. If handle is value return TRUE,
|
|
* otherwise return FALSE
|
|
* @param[in] handle Capture dissector handle
|
|
* @param[in] pd Data buffer of captured bytes
|
|
* @param[in] offset Current offset into pd
|
|
* @param[in] len Length of pd
|
|
* @param[in] cpinfo Capture statistics
|
|
* @param[in] pseudo_header Wiretap pseudo header information
|
|
*/
|
|
WS_DLL_PUBLIC gboolean call_capture_dissector(capture_dissector_handle_t handle, const guchar *pd, int offset, int len, capture_packet_info_t *cpinfo, const union wtap_pseudo_header *pseudo_header);
|
|
|
|
/* Get current capture packet count for a particular protocol
|
|
* @param[in] counts Packet count structure
|
|
* @param[in] proto Protocol to retrieve packet count from
|
|
* @return Number of packets captured for a particular protocol
|
|
*/
|
|
WS_DLL_PUBLIC guint32 capture_dissector_get_count(packet_counts* counts, const int proto);
|
|
|
|
/* Increment packet capture count by 1 for a particular protocol.
|
|
* @param[in] cpinfo Capture statistics
|
|
* @param[in] proto Protocol to increment packet count
|
|
*/
|
|
WS_DLL_PUBLIC void capture_dissector_increment_count(capture_packet_info_t *cpinfo, const int proto);
|
|
|
|
extern void capture_dissector_init(void);
|
|
extern void capture_dissector_cleanup(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* capture_dissectors.h */
|