udp.h

嵌入式RMON,RMON为Remote monitor的缩写,基于SNMP为网络提供主动监控及错误告警,智能交换路由必备协议

/* Beholder RMON ethernet network monitor,Copyright (C) 1993 DNPAP group */
/* See file COPYING 'GNU General Public Licence' for copyright details   */
#ifndef _UDP_H_
#define _UDP_H_

#include <dnpap.h>
#include <chain.h>
#include <ip.h>
#ifdef UNIX
#include <nw.h>
#endif

#define UDP_PORT_ANY	0
#define UDP_ADDR_ANY    0xffffffffL

typedef struct _UDP_DESCR           UDP_DESCR;
typedef struct _UDP_HDR             UDP_HDR;
typedef struct _UDP_STAT            UDP_STAT;

struct _UDP_DESCR
{
	BOOLEAN     (*Rcve)(UDP_DESCR *descr, CHAIN *chain, UDP_HDR *udpHdr, IP_HDR *ipHdr);
	WORD	    locPort;
	DWORD    	locAddr;
	WORD    	remPort;
	DWORD       remAddr;
    void        *specific;
    UDP_DESCR   *next;   
#ifdef UNIX
    NW_DG       *nw;  
#endif
};

struct _UDP_STAT
{
    DWORD   noPorts;
    DWORD   inDatagrams;
    DWORD   inErrors;
    DWORD   outDatagrams;
    DWORD   outErrors;
};

struct _UDP_HDR
{
    WORD    src;
    WORD    dst;
    WORD    length;
    WORD    check;
};



BOOLEAN UdpInit(void);

BOOLEAN UdpRegister(UDP_DESCR *udp);
BOOLEAN UdpRemove(UDP_DESCR *udp);

BOOLEAN UdpSend(CHAIN *chain, UDP_HDR *udpHdr, IP_HDR *ipHdr, UDP_DESCR *descr);

WORD    UdpAnyPort(VOID);

#endif