dymo_pkt_support.h

备

/* dymo_pkt_support.h */
/* Data Structures used for the packet fields	*/
/* used in the DYMO RE and RERR packets	*/

/****************************************/
/*      Copyright (c) 1986-2003         */
/*     by OPNET Technologies, Inc.      */
/*      (A Delaware Corporation)        */
/*   7255 Woodmont Av., Suite 250       */
/*     Bethesda, MD 20814, U.S.A.       */
/*       All Rights Reserved.           */
/****************************************/

/* Protect against multiple includes. 	*/
#ifndef	_DYMO_PKT_SUPPORT_H_INCLUDED_
#define _DYMO_PKT_SUPPORT_H_INCLUDED_

#include <ip_addr_v4.h>
#include <ip_rte_v4.h>

#if defined (__cplusplus)
extern "C" {
#endif

/********* CONSTANTS ***********/

/* Type of packet	*/
#define DYMOC_ROUTE_ELEMENT		1
#define DYMOC_ROUTE_ERROR		2
#define DYMOC_UNSUP_ERROR		3
#define DYMOC_HELLO				4   /*Not yet defined in Dymo 01*/

/* Packet Sizes in bits	*/
#define DYMOC_RE_IPV4_SIZE	184 /* Including the first RE Block */
#define DYMOC_RE_IPV6_SIZE	376 /* Including the first RE Block */
#define	DYMOC_HELLO_IPV4_SIZE	160 /* Same as AODV RREP. Keep this as same for Comparision Purpose*/
#define	DYMOC_HELLO_IPV6_SIZE	352


/***** Enumerated Data Types ******/
typedef enum
	{
	DymoC_Link_Break_Detect,
	DymoC_Data_Packet_No_Route,
	DymoC_Rerr_Received
    } DymoC_Rerr_Process;

/******** Data Structures *********/

/* Options in the DYMO packet	*/

typedef struct
	{
	int				elem_type;
	void*			value_ptr;
	} DymoT_Packet_Option;
	
/* Route Element Option	*/

typedef struct 
		{
		Boolean				gateway_flag;
		int					prefix;
		int					re_hop_count;
		InetT_Address		re_node_addr;
		int					re_node_seq_num;
		} DymoT_Re_Block_Entry;

typedef struct
	{
	int					elem_ttl;
	int					elem_len;
	Boolean				ignore_flag;
	InetT_Address		elem_target_addr;
	int					elem_target_seq_num;
	int					t_hop_cnt;
	Boolean				ack_flag;
	List*				reblock_lptr;
	} DymoT_Route_Ele;




/* Route Error Option	*/
typedef struct
	{
	InetT_Address		unreachable_dest;
	int					unreachable_dest_seq_num;
	} DymoT_Unreachable_Node;

typedef struct
	{
	int					elem_ttl;
	int					elem_len;
	Boolean				ignore_flag;
	List*				unreachable_dest_lptr; /* Each element is DymoT_Unreachable_Node	*/
	} DymoT_Rerr;

/* Hello Option	*/
/*Added based on AODV RREP. Contents have to be changed once Dymo has a proposal for Hello Packet format*/
typedef struct
	{
	Boolean				repair_flag;
	Boolean				ack_required_flag;
	int					hop_count;
	InetT_Address		dest_addr;
	int					dest_seq_num;
	InetT_Address		src_addr;
	double				lifetime;
	} DymoT_Hello;


#if defined (__cplusplus)
} /* end of 'extern "C" {' */
#endif

/* End if for protection against multiple includes.	 */
#endif 	/*_DYMO_PKT_SUPPORT_H_INCLUDED_		 */