2 * Routines for building lists of packets that are part of a "conversation"
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
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__
29 * Flags to pass to "conversation_new()" to indicate that the address 2
30 * and/or port 2 values for the conversation should be wildcards.
31 * The CONVERSATION_TEMPLATE option tells that any of the other supplied
32 * port and / or address wildcards will be used to match an infinite number
33 * of new connections to the conversation(s) that have the CONVERSATION_-
34 * TEMPLATE flag set. Any conversation created without the CONVERSATION_-
35 * TEMPLATE flag will be altered once the first connections (connection
36 * oriented protocols only) to include the newly found information which
37 * matched the wildcard options.
41 #define NO_PORT2_FORCE 0x04
42 #define CONVERSATION_TEMPLATE 0x08
45 * Flags to pass to "find_conversation()" to indicate that the address B
46 * and/or port B search arguments are wildcards.
48 #define NO_ADDR_B 0x01
49 #define NO_PORT_B 0x02
50 #define NO_PORT_B_FORCE 0x04
52 #include "packet.h" /* for conversation dissector type */
55 * Data structure representing a conversation.
57 typedef struct conversation_key {
58 struct conversation_key *next;
66 typedef struct conversation {
67 struct conversation *next; /* pointer to next conversation on hash chain */
68 guint32 index; /* unique ID for conversation */
69 guint32 setup_frame; /* frame number that setup this conversation */
70 GSList *data_list; /* list of data associated with conversation */
71 dissector_handle_t dissector_handle;
72 /* handle for protocol dissector client associated with conversation */
73 guint options; /* wildcard flags */
74 conversation_key *key_ptr; /* pointer to the key for this conversation */
77 extern void conversation_init(void);
79 extern conversation_t *conversation_new(guint32 setup_frame, address *addr1, address *addr2,
80 port_type ptype, guint32 port1, guint32 port2, guint options);
82 extern conversation_t *find_conversation(guint32 frame_num, address *addr_a, address *addr_b,
83 port_type ptype, guint32 port_a, guint32 port_b, guint options);
85 extern void conversation_add_proto_data(conversation_t *conv, int proto,
87 extern void *conversation_get_proto_data(conversation_t *conv, int proto);
88 extern void conversation_delete_proto_data(conversation_t *conv, int proto);
90 extern void conversation_set_dissector(conversation_t *conversation,
91 dissector_handle_t handle);
93 try_conversation_dissector(address *addr_a, address *addr_b, port_type ptype,
94 guint32 port_a, guint32 port_b, tvbuff_t *tvb, packet_info *pinfo,
97 /* These routines are used to set undefined values for a conversation */
99 extern void conversation_set_port2(conversation_t *conv, guint32 port);
100 extern void conversation_set_addr2(conversation_t *conv, address *addr);
102 #endif /* conversation.h */