增加Tcp和Udp，尝试扩展

Net/Ethernet.h

@@ -12,11 +12,13 @@ private:
 	void* _param;
 
 public:
-	virtual void Send(byte* buf, uint len) = 0;
-	void Register(DataHandler handler, void* param = NULL);
+	// 获取负载数据指针。外部可以直接填充数据
+	virtual byte* GetPayload() = 0;
+	virtual void Send(IP_TYPE type, uint len) = 0;
+	void Register(IP_TYPE type, DataHandler handler, void* param = NULL);
 
 protected:
-	virtual void OnReceive(byte* buf, uint len);
+	virtual void OnReceive(byte* buf, uint len) = 0;
 };
 
 // 以太网

Net/Tcp.cpp

@@ -0,0 +1 @@
+#include "Tcp.h"

Net/Tcp.h

@@ -0,0 +1,18 @@
+#ifndef __Tcp_H__
+#define __Tcp_H__
+
+#include "Sys.h"
+#include "Net.h"
+#include "Ethernet.h"
+
+// Tcp协议
+class Tcp
+{
+private:
+	IEthernetAdapter* _adapter;
+
+public:
+	Tcp(IEthernetAdapter* adapter);
+};
+
+#endif

Net/Udp.cpp

@@ -0,0 +1,28 @@
+#include "Udp.h"
+
+Udp::Udp(IEthernetAdapter* adapter, ushort bufferSize)
+{
+	_adapter = adapter;
+	_Buffer = new byte[bufferSize];
+	_header = (UDP_HEADER*)_Buffer;
+}
+
+Udp::Udp()
+{
+	_adapter = NULL;
+	Register(NULL);
+	
+	if(_Buffer) delete _Buffer;
+	_Buffer = NULL
+}
+
+// 向目标地址发送数据
+void Udp::Send(byte* buf, uint len, byte[4] remoteip, ushort remoteport)
+{
+	_adapter->Send(IP_UDP, buf, len);
+}
+
+void Udp::Listen()
+{
+	
+}

Net/Udp.h

@@ -0,0 +1,35 @@
+#ifndef __Udp_H__
+#define __Udp_H__
+
+#include "Sys.h"
+#include "Net.h"
+#include "Ethernet.h"
+
+// UDP协议
+class Udp
+{
+private:
+	IEthernetAdapter* adapter;
+	byte* _Buffer;
+	UDP_HEADER* _header;
+
+public:
+	Udp(IEthernetAdapter* adapter, ushort bufferSize = 1400);
+	virtual ~Udp();
+	
+	ushort Port;	// 本地端口。0表示监听所有端口
+	
+	void Listen();
+	
+	// 向目标地址发送数据，数据必须提前填充到负载里面
+	void Send(uint len, byte[4] remoteip, ushort remoteport);
+	// 获取负载数据指针。外部可以直接填充数据
+	byte* GetPayload() { return _Buffer + sizeof(UDP_HEADER); }
+	// 注册回调函数
+	void Register(DatHandler* handler, void* param = NULL);
+private:
+	DataHandler	_handler;
+	void*		_Param;
+};
+
+#endif

TinyIP/TinyIP.cpp

@@ -45,7 +45,7 @@ TinyIP::TinyIP(Enc28j60* enc, byte ip[4], byte mac[6])
 	seqnum = 0xa;
 
 	// 分配缓冲区。比较大，小心栈空间不够
-	if(!Buffer) Buffer = new byte[BufferSize + 1];
+	if(!Buffer) Buffer = new byte[BufferSize];
 	assert_param(Buffer);
 	assert_param(Sys.CheckMemory());
 
@@ -816,6 +816,6 @@ void TinyIP::DHCPConfig(byte* buf)
 	}
 }
 
-void TinyIP::Send(byte* buf, uint len)
+void TinyIP::Send(IP_TYPE type, uint len)
 {
 }

TinyIP/TinyIP.h

@@ -5,7 +5,7 @@
 #include "Net/Ethernet.h"
 
 // 精简IP类
-class TinyIP //: protected IEthernetAdapter
+class TinyIP : protected IEthernetAdapter
 {
 private:
     Enc28j60* _enc;
@@ -41,7 +41,10 @@ private:
 	void PareOption(byte* buf, int len);
 	void DHCPConfig(byte* buf);
 
-	virtual void Send(byte* buf, uint len);
+	virtual void Send(IP_TYPE type, uint len);
+	// 获取负载数据指针。外部可以直接填充数据
+	virtual byte* GetPayload();
+	virtual void OnReceive(byte* buf, uint len);
 public:
     byte IP[4];
     byte Mask[4];