ethernet.h

MC9S12NE64串口与网络通信源代码

/******************************************************************************
 *
 * File Name     : ethernet.h 
 * Description    : Ethernet Frame Header type definition
 *
 *
 ******************************************************************************/
   
#include "MOTTYPES.h"

#ifndef ETHERNET_H
#define ETHERNET_H


/* Symbolic constants	*/

#define	ETH_ADDRESS_LEN	6

/* Protocol Constants	*/

#define	ETH_HEADER_LEN		14

#define	PROTOCOL_IP			0x0800			/**< IP over Ethernet	*/
#define PROTOCOL_ARP		0x0806			/**< ARP over Ethernet 	*/

/** \struct ethernet_frame 
 *  \brief Ethernet packet header 
 *
  *	Ethernet Frame Header type
*/
typedef struct 
{
	tU08	destination[ETH_ADDRESS_LEN];	/**< destination hardware address */
	tU08	source[ETH_ADDRESS_LEN];		/**< source hardware address*/
	tU16	frame_size;						    /**< size of the received packet */	
	tU16	protocol;						      /**< protocol field of Ethernet header */
	tU16	buf_index;						    /**< Address in the controllers buffer for data */
}ethernet_frame;


typedef union uMACADUnion
{
  tU16 Word[3];                          /* MAC Address bits 47 to 0 */
  tU08 Byte[6];
} tMACADStr;

typedef union uMCHASHUnion
  {
  tU16 Word[4];                         /* Multicast Hash Table bits 63 to 0 */
  tU08 Byte[8];
  }tMCHASHStr;

/* Ethernet Frame Header type */
/** \struct tFRHEAD 
 *	\brief Ethernet Frame Header type
 *
 *	Ethernet Frame Header type
 */
typedef struct
  {
   tU08 da[6]; /**< destination address */
   tU08 sa[6]; /**< source address */
   tU16 ft;    /**< frame type */
  }tFRHEAD;
  
typedef tFRHEAD * pFRHEAD;




#define HA_SIZE 6 /**< hardware address size */
#define PA_SIZE 4 /**< protocol address size */

/*****************************declare the ip head used in files************************************/
/*******************************      ip.h       **************************************************/
typedef	struct _eth_Header {
	eth_HwAddress	destination;
	eth_HwAddress	source;
	tU16			type;
}	eth_Header;

typedef	struct	_in_Header {
	tU16		vht;
	tU16		length;
	tU16		identification;
	tU16		frag;
	tU16		ttlProtocol;
	tU16		checksum;
	in_HwAddress	source;
	in_HwAddress	destination;
}	in_Header;

#define in_GetVersion(ip) (((ip)->vht >> 12) & 0xf)
#define in_GetHdrlen(ip)  (((ip)->vht >> 8) & 0xf)
#define in_GetHdrlenBytes(ip)  (((ip)->vht >> 6) & 0x3c)
#define in_GetTos(ip)      ((ip)->vht & 0xff)

#define in_GetTTL(ip)      ((ip)->ttlProtocol >> 8)
#define in_GetProtocol(ip) ((ip)->ttlProtocol & 0xff)

#define ip_prot_icmp		0x01
#define ip_prot_tcp		0x06
#define ip_prot_egp		0x08
#define ip_prot_udp		0x11

void ip_daemon(void);
tU16 checksum(tU16 *dp, tU16 length);
tU08 sed_CheckPacket( tU08 *BufLocation, tU16 expectedType );



/*****************************declare the arp head used in files************************************/
/***********************************    arp.h     **************************************************/

#define arp_TypeEther  1        /* ARP type of Ethernet address */

/* harp op codes */
#define ARP_REQUEST 1
#define ARP_REPLY   2


/*
 * Arp header
 */
typedef struct _arp_Header {
	tU16		hwType;
	tU16		protType;
	tU16		hwProtAddrLen;  /* hw and prot addr len */
	tU16		opcode;
	eth_HwAddress	srcEthAddr;
	in_HwAddress	srcIPAddr;
	eth_HwAddress	dstEthAddr;
	in_HwAddress	dstIPAddr;
} arp_Header;

tU08 sar_CheckPacket(arp_Header *ap);


/*****************************declare the icmp head used in files************************************/

/***********************************icmp.h***********************************************************/



#define ICMP_ECHOREPLY		0	/* Echo Reply			*/
#define ICMP_DEST_UNREACH	3	/* Destination Unreachable	*/
#define ICMP_SOURCE_QUENCH	4	/* Source Quench		*/
#define ICMP_REDIRECT		5	/* Redirect (change route)	*/
#define ICMP_ECHO			8	/* Echo Request			*/
#define ICMP_TIME_EXCEEDED	11	/* Time Exceeded		*/
#define ICMP_PARAMETERPROB	12	/* Parameter Problem		*/
#define ICMP_TIMESTAMP		13	/* Timestamp Request		*/
#define ICMP_TIMESTAMPREPLY	14	/* Timestamp Reply		*/
#define ICMP_INFO_REQUEST	15	/* Information Request		*/
#define ICMP_INFO_REPLY		16	/* Information Reply		*/
#define ICMP_ADDRESS		17	/* Address Mask Request		*/
#define ICMP_ADDRESSREPLY	18	/* Address Mask Reply		*/
#define NR_ICMP_TYPES		18


/* Codes for UNREACH. */
#define ICMP_NET_UNREACH	0	/* Network Unreachable		*/
#define ICMP_HOST_UNREACH	1	/* Host Unreachable		*/
#define ICMP_PROT_UNREACH	2	/* Protocol Unreachable		*/
#define ICMP_PORT_UNREACH	3	/* Port Unreachable		*/
#define ICMP_FRAG_NEEDED	4	/* Fragmentation Needed/DF set	*/
#define ICMP_SR_FAILED		5	/* Source Route failed		*/
#define ICMP_NET_UNKNOWN	6
#define ICMP_HOST_UNKNOWN	7
#define ICMP_HOST_ISOLATED	8
#define ICMP_NET_ANO		9
#define ICMP_HOST_ANO		10
#define ICMP_NET_UNR_TOS	11
#define ICMP_HOST_UNR_TOS	12
#define ICMP_PKT_FILTERED	13	/* Packet filtered */
#define ICMP_PREC_VIOLATION	14	/* Precedence violation */
#define ICMP_PREC_CUTOFF	15	/* Precedence cut off */
#define NR_ICMP_UNREACH		15	/* instead of hardcoding immediate value */

/* Codes for REDIRECT. */
#define ICMP_REDIR_NET		0	/* Redirect Net			*/
#define ICMP_REDIR_HOST		1	/* Redirect Host		*/
#define ICMP_REDIR_NETTOS	2	/* Redirect Net for TOS		*/
#define ICMP_REDIR_HOSTTOS	3	/* Redirect Host for TOS	*/

/* Codes for TIME_EXCEEDED. */
#define ICMP_EXC_TTL		0	/* TTL count exceeded		*/
#define ICMP_EXC_FRAGTIME	1	/* Fragment Reass time exceeded	*/


typedef struct _icmphdr {
	tU08	icmp_type;
  	tU08	icmp_code;
 	tU16	icmp_checksum;
	union{
		tU08	ih_pptr;
		struct echo{
			tU16	icmp_id;
			tU16	icmp_sequence;
		} echo;
		tU16	ih_void;
		struct icmp_pmtu {
			tU16 ipm_void;
			tU16 ipm_nextmtu;
		}icmp_pmtu;
	}icmp_un;
} icmphdr;

/*
 *	constants for (set|get)sockopt
 */

#define ICMP_FILTER			1


void icmp_in(in_Header *ip_icmp,tU16 ip_len);
void icmp_echo(in_Header *ip,tU16 icmp_len) ;





/*****************************declare the udp head used in files************************************/

/****************************************udp.h**************************************/


typedef	struct	_tcpudp_PseudoHeader {
	tU08	mbz;
	tU08	protocol;
	tU16	length;
	in_HwAddress	source;
	in_HwAddress	destination;
}	tcpudp_PseudoHeader;

typedef	struct _udp_Header {
	tU16	sport;
	tU16	dport;
	tU16	length;
	tU16	checksum;
}	udp_Header;

typedef	struct _udp_cks_int {
	tcpudp_PseudoHeader	tuph;
	udp_Header	uh;
}	udp_cks_int;

typedef struct _udpsocket{                                         //added for udp store    
    eth_HwAddress des_ethaddr;
    tU32          des_ip;
    tU16          des_port;
} udpsocket;

typedef struct _udppacket{
     eth_Header ethhead;
     in_Header   iphead;
     udp_Header udphead;
     } udppacket;
     
     
void udp_receive(in_Header *ip);
void udp_init(void);
void udp_store(tU08 * ip);
void Out_chars(tU08 * charpoint, tU16 charlength);


#endif