ip.h

mc51单片机对rtl8019编程,实现ethernet的收发控制.

#ifndef IP_H
#define IP_H

#include "types.h"
enum
  {
    IPPROTO_IP = 0,	   /* Dummy protocol for TCP.  */
    IPPROTO_HOPOPTS = 0,   /* IPv6 Hop-by-Hop options.  */
    IPPROTO_ICMP = 1,	   /* Internet Control Message Protocol.  */
    IPPROTO_IGMP = 2,	   /* Internet Group Management Protocol. */
    IPPROTO_IPIP = 4,	   /* IPIP tunnels (older KA9Q tunnels use 94).  */
    IPPROTO_TCP = 6,	   /* Transmission Control Protocol.  */
    IPPROTO_EGP = 8,	   /* Exterior Gateway Protocol.  */
    IPPROTO_PUP = 12,	   /* PUP protocol.  */
    IPPROTO_UDP = 17,	   /* User Datagram Protocol.  */
    IPPROTO_IDP = 22,	   /* XNS IDP protocol.  */
    IPPROTO_TP = 29,	   /* SO Transport Protocol Class 4.  */
    IPPROTO_IPV6 = 41,     /* IPv6 header.  */
    IPPROTO_ROUTING = 43,  /* IPv6 routing header.  */
    IPPROTO_FRAGMENT = 44, /* IPv6 fragmentation header.  */
    IPPROTO_RSVP = 46,	   /* Reservation Protocol.  */
    IPPROTO_GRE = 47,	   /* General Routing Encapsulation.  */
    IPPROTO_ESP = 50,      /* encapsulating security payload.  */
    IPPROTO_AH = 51,       /* authentication header.  */
    IPPROTO_ICMPV6 = 58,   /* ICMPv6.  */
    IPPROTO_NONE = 59,     /* IPv6 no next header.  */
    IPPROTO_DSTOPTS = 60,  /* IPv6 destination options.  */
    IPPROTO_MTP = 92,	   /* Multicast Transport Protocol.  */
    IPPROTO_ENCAP = 98,	   /* Encapsulation Header.  */
    IPPROTO_PIM = 103,	   /* Protocol Independent Multicast.  */
    IPPROTO_COMP = 108,	   /* Compression Header Protocol.  */
    IPPROTO_RAW = 255,	   /* Raw IP packets.  */
    IPPROTO_MAX
  };


typedef struct {
	Uint8 ip_hl_v;		/* header length and version */
	Uint8 ip_tos;		/* type of service */
	Uint16 ip_len;			/* total length */
	Uint16 ip_id;			/* identification */
	Uint16 ip_off;			/* fragment offset field */
#define	IP_RF 0x8000			/* reserved fragment flag */
#define	IP_DF 0x4000			/* dont fragment flag */
#define	IP_MF 0x2000			/* more fragments flag */
#define	IP_OFFMASK 0x1fff		/* mask for fragmenting bits */
	Uint8 ip_ttl;		/* time to live */
	Uint8 ip_p;			/* protocol */
	Uint16 ip_sum;			/* checksum */
	Uint8 ip_src[INADDR_LEN];	/* source address */
	Uint8 ip_dst[INADDR_LEN];	/* dest address */
}Ip_struc;


#define	IPVERSION_HEADERLEN	0x45    /* IP version number & hdr length */
void ip_config(Uint8 *pip_local, Uint8 *pip_remote,Uint8 *pip_gateway,Uint8 *pip_mask); 
Bool ip_send(Uint8* pBuffer);
Bool ip_receive(Uint8* pBuffer);

#endif