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/* follow.h
*
* Copyright 1998 Mike Hall <mlh@io.com>
*
* 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 __FOLLOW_H__
#define __FOLLOW_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <epan/packet.h>
#include "ws_symbol_export.h"
#define MAX_IPADDR_LEN 16
typedef enum {
TCP_STREAM = 0,
UDP_STREAM,
MAX_STREAM
} stream_type;
/* With MSVC and a libwireshark.dll, we need a special declaration. */
WS_DLL_PUBLIC gboolean empty_tcp_stream;
WS_DLL_PUBLIC gboolean incomplete_tcp_stream;
typedef struct _tcp_stream_chunk {
guint8 src_addr[MAX_IPADDR_LEN];
guint16 src_port;
guint32 dlen;
guint32 packet_num;
} tcp_stream_chunk;
/** Build a follow filter based on the current packet's conversation.
*
* @param packet_info [in] The current packet.
* @return A filter that specifies the conversation. Must be g_free()d
* the caller.
*/
WS_DLL_PUBLIC
gchar* build_follow_conv_filter( packet_info * packet_info);
/** Build a follow filter based on the current TCP/UDP stream index.
* follow_index() must be called prior to calling this.
*
* @return A filter that specifies the current stream. Must be g_free()d
* the caller.
*/
WS_DLL_PUBLIC
gchar* build_follow_index_filter(stream_type stream);
WS_DLL_PUBLIC
gboolean follow_addr(stream_type, const address *, guint, const address *, guint );
/** Select a TCP/UDP stream to follow via its index.
*
* @param addr [in] The stream index to follow.
* @return TRUE on success, FALSE on failure.
*/
WS_DLL_PUBLIC
gboolean follow_index(stream_type stream, guint32 addr);
/** Get the current TCP/UDP index being followed.
*
* @return The current TCP/UDP index. The behavior is undefined
* if no TCP/UDP stream is being followed.
*/
WS_DLL_PUBLIC
guint32 get_follow_index(stream_type stream);
void reassemble_tcp( guint32, guint32, guint32, guint32, const char*, guint32,
int, address *, address *, guint, guint, guint32 );
WS_DLL_PUBLIC
void reset_tcp_reassembly( void );
WS_DLL_PUBLIC
void reset_udp_follow(void);
typedef struct {
guint8 ip_address[2][MAX_IPADDR_LEN];
guint32 port[2];
unsigned int bytes_written[2];
gboolean is_ipv6;
} follow_stats_t;
WS_DLL_PUBLIC
void follow_stats(follow_stats_t* stats);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
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