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/* packet-gmr1_common.h
 *
 * Headers for GMR-1 dissection in wireshark (common stuff).
 * Copyright (c) 2011 Sylvain Munaut <tnt@246tNt.com>
 *
 * References:
 *  [1] ETSI TS 101 376-4-8 V1.3.1 - GMR-1 04.008
 *  [2] ETSI TS 101 376-4-8 V2.2.1 - GMPRS-1 04.008
 *  [3] ETSI TS 101 376-4-8 V3.1.1 - GMR-1 3G 44.008
 *  [4] ETSI TS 100 940 V7.21.0 - GSM 04.08
 *  [5] ETSI TS 101 376-4-12 V3.2.1 - GMR-1 3G 44.060
 *  [6] ETSI TS 101 376-5-6 V1.3.1 - GMR-1 05.008
 *
 * 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 __PACKET_GMR1_COMMON_H__
#define __PACKET_GMR1_COMMON_H__

#include "packet-gsm_a_common.h"


/* Protocol descriptor (see [1] 11.2 & [4] 10.2) */
typedef enum {
        GMR1_PD_CC      = 0x03,
        GMR1_PD_MM      = 0x05,
        GMR1_PD_RR      = 0x06,
        GMR1_PD_GMM     = 0x08,
        GMR1_PD_SM      = 0x0a,
        GMR1_PD_DTRS    = 0x1e
} gmr1_pd_e;

#define GMR1_PD_EXT_MSK 0x0f
#define GMR1_PD_EXT_VAL 0x0e

extern const value_string gmr1_pd_vals[];
extern const value_string gmr1_pd_short_vals[];


/* Common IEs */
enum gmr1_ie_common_idx {
        GMR1_IE_COM_CM2,                        /* [1] 11.5.1.6 */
        GMR1_IE_COM_SPARE_NIBBLE,               /* [1] 11.5.1.8 */
        NUM_GMR1_IE_COMMON /* Terminator */
};

extern int hf_gmr1_skip_ind;
extern int hf_gmr1_l3_pd;
extern int hf_gmr1_elem_id;
extern int hf_gmr1_len;


/* Message & IEs parsing */

typedef void (*gmr1_msg_func_t)(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, gint offset, gint len);

#define GMR1_IE_FUNC(fn_name)   \
        static guint16 \
        fn_name (tvbuff_t *tvb _U_, proto_tree *tree _U_, packet_info *pinfo _U_, guint32 offset _U_, guint len _U_, gchar *add_string _U_, int string_len _U_)

#define GMR1_MSG_FUNC(fn_name)  \
        static void \
        fn_name (tvbuff_t *tvb _U_, proto_tree *tree _U_, packet_info *pinfo _U_, gint offset, gint len)

#define GMR1_MSG_FUNC_BEGIN     \
        gint curr_offset;       \
        gint curr_len;          \
        gint consumed;          \
                                \
        curr_offset = offset;   \
        curr_len = len;         \
        consumed = 0;

#define GMR1_MSG_FUNC_END


extern void
gmr1_get_msg_params(gmr1_pd_e pd, guint8 oct, const gchar **msg_str,
                    int *ett_tree, int *hf_idx, gmr1_msg_func_t *msg_func_p);


#endif /* __PACKET_GMR1_COMMON_H__ */