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/* gcp.h
* Gateway Control Protocol -- Context Tracking
*
* 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 __GCP_H_
#define __GCP_H_
#include <glib.h>
#include <epan/packet.h>
#include <epan/conversation.h>
#include <epan/strutil.h>
#include <epan/wmem/wmem.h>
#include <epan/expert.h>
#include <epan/prefs.h>
#include <epan/asn1.h>
#include <stdio.h>
#include <string.h>
#include <epan/dissectors/packet-ber.h>
#include <epan/dissectors/packet-q931.h>
#include <epan/dissectors/packet-mtp3.h>
#include <epan/dissectors/packet-alcap.h>
#include <epan/dissectors/packet-isup.h>
#include <epan/sctpppids.h>
#include "ws_symbol_export.h"
typedef struct _gcp_hf_ett_t {
struct {
int ctx;
int ctx_cmd;
int ctx_term;
int ctx_term_type;
int ctx_term_bir;
int ctx_term_nsap;
} hf;
struct {
gint ctx;
gint ctx_cmds;
gint ctx_terms;
gint ctx_term;
} ett;
} gcp_hf_ett_t;
#define NULL_CONTEXT 0
#define CHOOSE_CONTEXT 0xFFFFFFFE
#define ALL_CONTEXTS 0xFFFFFFFF
typedef enum {
GCP_CMD_NONE,
GCP_CMD_ADD_REQ,
GCP_CMD_MOVE_REQ,
GCP_CMD_MOD_REQ,
GCP_CMD_SUB_REQ,
GCP_CMD_AUDITCAP_REQ,
GCP_CMD_AUDITVAL_REQ,
GCP_CMD_NOTIFY_REQ,
GCP_CMD_SVCCHG_REQ,
GCP_CMD_TOPOLOGY_REQ,
GCP_CMD_CTX_ATTR_AUDIT_REQ,
GCP_CMD_OTHER_REQ,
GCP_CMD_ADD_REPLY,
GCP_CMD_MOVE_REPLY,
GCP_CMD_MOD_REPLY,
GCP_CMD_SUB_REPLY,
GCP_CMD_AUDITCAP_REPLY,
GCP_CMD_AUDITVAL_REPLY,
GCP_CMD_NOTIFY_REPLY,
GCP_CMD_SVCCHG_REPLY,
GCP_CMD_TOPOLOGY_REPLY,
GCP_CMD_REPLY
} gcp_cmd_type_t;
typedef enum {
GCP_TRX_NONE,
GCP_TRX_REQUEST,
GCP_TRX_PENDING,
GCP_TRX_REPLY,
GCP_TRX_ACK
} gcp_trx_type_t;
typedef struct _gcp_msg_t {
guint32 lo_addr;
guint32 hi_addr;
guint32 framenum;
nstime_t time;
struct _gcp_trx_msg_t* trxs;
gboolean commited;
} gcp_msg_t;
typedef struct _gcp_trx_msg_t {
struct _gcp_trx_t* trx;
struct _gcp_trx_msg_t* next;
struct _gcp_trx_msg_t* last;
} gcp_trx_msg_t;
typedef struct _gcp_cmd_msg_t {
struct _gcp_cmd_t* cmd;
struct _gcp_cmd_msg_t* next;
struct _gcp_cmd_msg_t* last;
} gcp_cmd_msg_t;
typedef struct _gcp_trx_t {
gcp_msg_t* initial;
guint32 id;
gcp_trx_type_t type;
guint pendings;
struct _gcp_cmd_msg_t* cmds;
struct _gcp_trx_ctx_t* ctxs;
guint error;
} gcp_trx_t;
#define GCP_TERM_TYPE_UNKNOWN 0
#define GCP_TERM_TYPE_AAL1 1
#define GCP_TERM_TYPE_AAL2 2
#define GCP_TERM_TYPE_AAL1_STRUCT 3
#define GCP_TERM_TYPE_IP_RTP 4
#define GCP_TERM_TYPE_TDM 5
typedef enum _gcp_wildcard_t {
GCP_WILDCARD_NONE,
GCP_WILDCARD_CHOOSE,
GCP_WILDCARD_ALL
} gcp_wildcard_t;
typedef struct _gcp_term_t {
const gchar* str;
const guint8* buffer;
guint len;
guint type;
gchar* bir;
gchar* nsap;
gcp_msg_t* start;
} gcp_term_t;
typedef struct _gcp_terms_t {
gcp_term_t* term;
struct _gcp_terms_t* next;
struct _gcp_terms_t* last;
} gcp_terms_t;
typedef struct _gcp_cmd_t {
guint offset;
const gchar* str;
gcp_cmd_type_t type;
gcp_terms_t terms;
struct _gcp_msg_t* msg;
struct _gcp_trx_t* trx;
struct _gcp_ctx_t* ctx;
guint error;
} gcp_cmd_t;
typedef struct _gcp_ctx_t {
gcp_msg_t* initial;
guint32 id;
struct _gcp_cmd_msg_t* cmds;
struct _gcp_ctx_t* prev;
gcp_terms_t terms;
} gcp_ctx_t;
WS_DLL_PUBLIC const value_string gcp_cmd_type[];
WS_DLL_PUBLIC const value_string gcp_term_types[];
extern void gcp_init(void);
extern gcp_msg_t* gcp_msg(packet_info* pinfo, int o, gboolean persistent);
extern gcp_trx_t* gcp_trx(gcp_msg_t* m ,guint32 t_id , gcp_trx_type_t type, gboolean persistent);
extern gcp_ctx_t* gcp_ctx(gcp_msg_t* m, gcp_trx_t* t, guint32 c_id, gboolean persistent);
extern gcp_cmd_t* gcp_cmd(gcp_msg_t* m, gcp_trx_t* t, gcp_ctx_t* c, gcp_cmd_type_t type, guint offset, gboolean persistent);
extern gcp_term_t* gcp_cmd_add_term(gcp_msg_t* m, gcp_trx_t* tr, gcp_cmd_t* c, gcp_term_t* t, gcp_wildcard_t wildcard, gboolean persistent);
extern void gcp_analyze_msg(proto_tree* gcp_tree, packet_info* pinfo, tvbuff_t* gcp_tvb, gcp_msg_t* m, gcp_hf_ett_t* ids, expert_field* command_err);
extern const gchar* gcp_cmd_to_str(gcp_cmd_t* c, gboolean persistent);
extern const gchar* gcp_msg_to_str(gcp_msg_t* m, gboolean persistent);
#define gcp_cmd_set_error(c,e) (c->error = e)
#define gcp_trx_set_error(t,e) (t->error = e)
#define GCP_ETT_ARR_ELEMS(gi) &(gi.ett.ctx),&(gi.ett.ctx_cmds),&(gi.ett.ctx_terms),&(gi.ett.ctx_term)
#define GCP_HF_ARR_ELEMS(n,gi) \
{ &(gi.hf.ctx), { "Context", n ".ctx", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }}, \
{ &(gi.hf.ctx_term), { "Termination", n ".ctx.term", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }}, \
{ &(gi.hf.ctx_term_type), { "Type", n ".ctx.term.type", FT_UINT32, BASE_HEX, VALS(gcp_term_types), 0, NULL, HFILL }}, \
{ &(gi.hf.ctx_term_bir), { "BIR", n ".ctx.term.bir", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }}, \
{ &(gi.hf.ctx_term_nsap), { "NSAP", n ".ctx.term.nsap", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }}, \
{ &(gi.hf.ctx_cmd), { "Command in Frame", n ".ctx.cmd", FT_FRAMENUM, BASE_NONE, NULL, 0, NULL, HFILL }}
#endif
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