frames.h

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/*------------------------------------------------------------------------
 *---------------------           RT-WMP              --------------------
 *------------------------------------------------------------------------
 *                                                         V7.0B  11/05/10
 *
 *
 *  File: ./src/core/include/frames.h
 *  Authors: Danilo Tardioli
 *  ----------------------------------------------------------------------
 *  Copyright (C) 2000-2010, Universidad de Zaragoza, SPAIN
 *
 *  Contact Addresses: Danilo Tardioli                   dantard@unizar.es
 *
 *  RT-WMP 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, or (at  your option) any
 *  later version.
 *
 *  RT-WMP  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
 *  distributed with RT-WMP;  see file COPYING.   If not,  write to the
 *  Free Software  Foundation,  59 Temple Place  -  Suite 330,  Boston, MA
 *  02111-1307, USA.
 *
 *  As a  special exception, if you  link this  unit  with other  files to
 *  produce an   executable,   this unit  does  not  by  itself cause  the
 *  resulting executable to be covered by the  GNU General Public License.
 *  This exception does  not however invalidate  any other reasons why the
 *  executable file might be covered by the GNU Public License.
 *
 *----------------------------------------------------------------------*/

#include "wmp_config.h"

#ifndef FRAMES_H_
#define FRAMES_H_
/* STATES TYPES */
#define FRESH_TOKEN       1
#define TOKEN           2
#define AUTHORIZATION   3
#define MESSAGE         4
#define DROP_TOKEN      5
#define ACK                         6

#define BURST                   1
#define RESCHEDULED             2
#define AURA_MSG                4

typedef struct {
        char rssi;
        char noise;
        unsigned long serial;
        unsigned char net_id;
        char type;
        signed char from;
        signed char to;
        char retries;
        unsigned int ack;
        unsigned short loop_id;
        unsigned short burst;
        int sleep;
        unsigned char waiting;
        unsigned int fc;
} __attribute__ ((__packed__)) Token_Hdr;

typedef struct {
        unsigned char beginner;
        signed char maxPri;
        signed char idMaxPri;
        unsigned int age;
        unsigned short ack_hash;
        short ack_part;
} __attribute__ ((__packed__)) Token;

typedef struct {
        unsigned char type;
        unsigned char src;
        unsigned int dest;
        unsigned int reached;
        unsigned int age;
        unsigned short msg_hash;
        unsigned short msg_part_size;
        short part_id;
        unsigned short len;
        unsigned char port;
        signed char priority;
} __attribute__ ((__packed__)) Message;

typedef struct {
        unsigned char type;
        unsigned char src;
        unsigned int dest;
        unsigned int reached;
        unsigned int age;
        unsigned short ack_hash;
        short ack_part;
} __attribute__ ((__packed__)) Authorization;

typedef struct {
        unsigned long drop_serial;
} __attribute__ ((__packed__)) Drop;

typedef struct {
        unsigned short ack_hash;
        short ack_part;
} __attribute__ ((__packed__)) Ack;

typedef struct {
        Token_Hdr hdr;
        union {
                Token tkn;
                Message msg;
                Authorization aut;
                Drop drop;
                Ack ack;
        };
} __attribute__ ((__packed__)) wmpFrame;

char * wmp_get_frame_tail_pointer(wmpFrame * t);
char * wmp_get_frame_routing_pointer(wmpFrame * t);
char * wmp_get_message_data_pointer(wmpFrame * t);
int wmp_get_frame_total_lenght(wmpFrame * t);
char * wmp_get_frame_routing_pointer_new_tree(wmpFrame * t);
char * wmp_get_frame_routing_pointer_status(wmpFrame * t);
#endif /*FRAMES_H_*/