udp.h

此文档为采用FPGA实现的以太网MAC层

#ifndef _UDP_H
#define _UDP_H

#include "sys.h"

typedef struct
{
    Uint16 sourceport;
    Uint16 destport;
    Uint16 length;
    Uint16 checksum;
}
UDPHEADER;

#define UDP_SIZE sizeof(UDPHEADER)

#define UDP_OFFSET ETH_SIZE+IP_SIZE
#define UDP_DATA_OFFSET UDP_OFFSET+UDP_SIZE

//unsigned int udp_packet(unsigned int src_port, unsigned int dest_port, unsigned long src_ip, unsigned long dest_ip, unsigned int data_len, unsigned int *data_buf, unsigned int *packet);
Uint16 udp_packet(UDPHEADER *packet, Uint16 dest_ip_h, Uint16 dest_ip_l, Uint16 *databuf, Uint16 data_len);
void udp_process(UDPHEADER *packet,Uint16 datasize, Uint16 sourceip_h, Uint16 sourceip_l);
Uint16 udp_getlen(Uint16 len);

#endif