2 * Routines for building lists of packets that are part of a "conversation"
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 #ifndef __CONVERSATION_H__
26 #define __CONVERSATION_H__
30 #endif /* __cplusplus */
33 * Flags to pass to "conversation_new()" to indicate that the address 2
34 * and/or port 2 values for the conversation should be wildcards.
35 * The CONVERSATION_TEMPLATE option tells that any of the other supplied
36 * port and / or address wildcards will be used to match an infinite number
37 * of new connections to the conversation(s) that have the CONVERSATION_-
38 * TEMPLATE flag set. Any conversation created without the CONVERSATION_-
39 * TEMPLATE flag will be altered once the first connections (connection
40 * oriented protocols only) to include the newly found information which
41 * matched the wildcard options.
45 #define NO_PORT2_FORCE 0x04
46 #define CONVERSATION_TEMPLATE 0x08
49 * Flags to pass to "find_conversation()" to indicate that the address B
50 * and/or port B search arguments are wildcards.
52 #define NO_ADDR_B 0x01
53 #define NO_PORT_B 0x02
55 #include "packet.h" /* for conversation dissector type */
58 * Data structure representing a conversation.
60 typedef struct conversation_key {
61 struct conversation_key *next;
69 typedef struct conversation {
70 struct conversation *next; /* pointer to next conversation on hash chain */
71 guint32 index; /* unique ID for conversation */
72 guint32 setup_frame; /* frame number that setup this conversation */
73 GSList *data_list; /* list of data associated with conversation */
74 dissector_handle_t dissector_handle;
75 /* handle for protocol dissector client associated with conversation */
76 guint options; /* wildcard flags */
77 conversation_key *key_ptr; /* pointer to the key for this conversation */
80 extern void conversation_cleanup(void);
81 extern void conversation_init(void);
83 extern conversation_t *conversation_new(const guint32 setup_frame, const address *addr1, const address *addr2,
84 const port_type ptype, const guint32 port1, const guint32 port2, const guint options);
86 extern conversation_t *find_conversation(const guint32 frame_num, const address *addr_a, const address *addr_b,
87 const port_type ptype, const guint32 port_a, const guint32 port_b, const guint options);
89 extern conversation_t *find_or_create_conversation(packet_info *pinfo);
91 extern void conversation_add_proto_data(conversation_t *conv, const int proto,
93 extern void *conversation_get_proto_data(const conversation_t *conv, const int proto);
94 extern void conversation_delete_proto_data(conversation_t *conv, const int proto);
96 extern void conversation_set_dissector(conversation_t *conversation,
97 const dissector_handle_t handle);
99 try_conversation_dissector(const address *addr_a, const address *addr_b, const port_type ptype,
100 const guint32 port_a, const guint32 port_b, tvbuff_t *tvb, packet_info *pinfo,
103 /* These routines are used to set undefined values for a conversation */
105 extern void conversation_set_port2(conversation_t *conv, const guint32 port);
106 extern void conversation_set_addr2(conversation_t *conv, const address *addr);
110 #endif /* __cplusplus */
112 #endif /* conversation.h */