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/* conversation.h
* Routines for building lists of packets that are part of a "conversation"
*
* $Id$
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __CONVERSATION_H__
#define __CONVERSATION_H__
/*
* Flags to pass to "conversation_new()" to indicate that the address 2
* and/or port 2 values for the conversation should be wildcards.
* The CONVERSATION_TEMPLATE option tells that any of the other supplied
* port and / or address wildcards will be used to match an infinite number
* of new connections to the conversation(s) that have the CONVERSATION_-
* TEMPLATE flag set. Any conversation created without the CONVERSATION_-
* TEMPLATE flag will be altered once the first connections (connection
* oriented protocols only) to include the newly found information which
* matched the wildcard options.
*/
#define NO_ADDR2 0x01
#define NO_PORT2 0x02
#define NO_PORT2_FORCE 0x04
#define CONVERSATION_TEMPLATE 0x08
/*
* Flags to pass to "find_conversation()" to indicate that the address B
* and/or port B search arguments are wildcards.
*/
#define NO_ADDR_B 0x01
#define NO_PORT_B 0x02
#define NO_PORT_B_FORCE 0x04
#include "packet.h" /* for conversation dissector type */
/*
* Data structure representing a conversation.
*/
typedef struct conversation_key {
struct conversation_key *next;
address addr1;
address addr2;
port_type ptype;
guint32 port1;
guint32 port2;
} conversation_key;
typedef struct conversation {
struct conversation *next; /* pointer to next conversation on hash chain */
guint32 index; /* unique ID for conversation */
guint32 setup_frame; /* frame number that setup this conversation */
GSList *data_list; /* list of data associated with conversation */
dissector_handle_t dissector_handle;
/* handle for protocol dissector client associated with conversation */
guint options; /* wildcard flags */
conversation_key *key_ptr; /* pointer to the key for this conversation */
} conversation_t;
extern void conversation_init(void);
extern conversation_t *conversation_new(guint32 setup_frame, address *addr1, address *addr2,
port_type ptype, guint32 port1, guint32 port2, guint options);
extern conversation_t *find_conversation(guint32 frame_num, address *addr_a, address *addr_b,
port_type ptype, guint32 port_a, guint32 port_b, guint options);
extern void conversation_add_proto_data(conversation_t *conv, int proto,
void *proto_data);
extern void *conversation_get_proto_data(conversation_t *conv, int proto);
extern void conversation_delete_proto_data(conversation_t *conv, int proto);
extern void conversation_set_dissector(conversation_t *conversation,
dissector_handle_t handle);
extern gboolean
try_conversation_dissector(address *addr_a, address *addr_b, port_type ptype,
guint32 port_a, guint32 port_b, tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree);
/* These routines are used to set undefined values for a conversation */
extern void conversation_set_port2(conversation_t *conv, guint32 port);
extern void conversation_set_addr2(conversation_t *conv, address *addr);
#endif /* conversation.h */
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