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/*
* tcap-persistentdata.h
* Definitions for lists and hash tables used in wireshark's tcap dissector
* for calculation of delays in tcap-transactions
* Copyright 2006 Florent Drouin (based on h225-persistentdata from Lars Roland)
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* $Id$
*
* 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 __tcapsrt_HASH__
#define __tcapsrt_HASH__
#include <epan/packet.h>
#include <epan/conversation.h>
#include <epan/dissectors/packet-tcap.h>
/** @file
* lists and hash tables used in wireshark's tcap dissector
* for calculation of delays in tcap-calls
*/
#define LENGTH_OID 23
struct tcaphash_context_t {
struct tcaphash_context_key_t * key;
guint32 session_id;
guint32 first_frame;
guint32 last_frame;
nstime_t begin_time; /**< time of arrival of TC_BEGIN */
nstime_t end_time; /**< time of closing message */
gboolean responded; /**< true, if request has been responded */
gboolean closed;
gboolean upper_dissector;
gboolean oid_present;
gchar oid[LENGTH_OID+1];
gboolean subdissector_present;
dissector_handle_t subdissector_handle;
void (* callback) (tvbuff_t *,packet_info *, proto_tree *, struct tcaphash_context_t *);
struct tcaphash_begincall_t * begincall;
struct tcaphash_contcall_t * contcall;
struct tcaphash_endcall_t * endcall;
struct tcaphash_ansicall_t * ansicall;
};
struct tcaphash_begincall_t {
struct tcaphash_begin_info_key_t * beginkey;
struct tcaphash_context_t * context;
gboolean father;
struct tcaphash_begincall_t * next_begincall;
struct tcaphash_begincall_t * previous_begincall;
};
struct tcaphash_contcall_t {
struct tcaphash_cont_info_key_t * contkey;
struct tcaphash_context_t * context;
gboolean father;
struct tcaphash_contcall_t * next_contcall;
struct tcaphash_contcall_t * previous_contcall;
};
struct tcaphash_endcall_t {
struct tcaphash_end_info_key_t * endkey;
struct tcaphash_context_t * context;
gboolean father;
struct tcaphash_endcall_t * next_endcall;
struct tcaphash_endcall_t * previous_endcall;
};
struct tcaphash_ansicall_t {
struct tcaphash_ansi_info_key_t * ansikey;
struct tcaphash_context_t * context;
gboolean father;
struct tcaphash_ansicall_t * next_ansicall;
struct tcaphash_ansicall_t * previous_ansicall;
};
/** The Key for the hash table is the TCAP origine transaction identifier
of the TC_BEGIN containing the InitialDP */
struct tcaphash_context_key_t {
guint32 session_id;
};
struct tcaphash_begin_info_key_t {
guint32 hashKey;
guint32 tid;
guint32 opc_hash;
guint32 dpc_hash;
};
struct tcaphash_cont_info_key_t {
guint32 hashKey;
guint32 src_tid;
guint32 dst_tid;
guint32 opc_hash;
guint32 dpc_hash;
};
struct tcaphash_end_info_key_t {
guint32 hashKey;
guint32 tid;
guint32 opc_hash;
guint32 dpc_hash;
};
struct tcaphash_ansi_info_key_t {
guint32 hashKey;
guint32 tid;
guint32 opc_hash;
guint32 dpc_hash;
};
/** List of infos to store for the analyse */
struct tcapsrt_info_t {
guint32 tcap_session_id;
guint32 src_tid;
guint32 dst_tid;
guint8 ope;
};
/**
* Routine called when the TAP is initialized.
* so hash table are (re)created
*/
void tcapsrt_init_routine(void);
/**
* Initialize the Message Info used by the main dissector
* Data are linked to a TCAP transaction
*/
struct tcapsrt_info_t * tcapsrt_razinfo(void);
void tcapsrt_close(struct tcaphash_context_t * p_tcaphash_context,
packet_info * pinfo _U_);
/**
* Service Response Time analyze
* Called just after dissector call
* Associate a TCAP context to a tcap session and display session related infomations
* like the first frame, the last, the session duration,
* and a uniq session identifier for the filtering
*
* For ETSI tcap, the TCAP context can be reached through three keys
* - a key (BEGIN) identifying the session according to the tcap source identifier
* - a key (CONT) identifying the established session (src_id and dst_id)
* - a key (END) identifying the session according to the tcap destination identifier
*
* For ANSI tcap, the TCAP context is reached through a uniq key
* - a key (ANSI) identifying the session according to the tcap identifier
*/
struct tcaphash_context_t * tcapsrt_call_matching(tvbuff_t *tvb,
packet_info * pinfo _U_,
proto_tree *tree,
struct tcapsrt_info_t * p_tcap_info);
WS_VAR_IMPORT gboolean gtcap_StatSRT;
#endif /* __tcapsrt_HASH__*/
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