udp.h

实现在ARM上的ICP/IP功能的源代码。

__packed struct 	SUDPHead{
	WORD	PORTSrc;
	WORD	PORTDest;
	WORD	Len;
	WORD	UDPCheckSum;
};

struct udp_info{
u32_t  local_ip ;
u32_t remote_ip;
u16_t local_port;
u16_t remote_port;
};


struct SUCB{
struct udp_info info;
u32_t flag;
struct SUCB *pNext;
void (*rcv)(u8_t *buff,u16_t len);
BOOL (*send)(u8_t *buff,u16_t len);
};

typedef struct SUCB *  udp_socket;

#define UCP_CONNECTION_MAX_NUM 0x10
#define UDP_HEAD_LEN 8