www.pudn.com > zlIP-8051-rtl8019as.zip > NetIf.h

/* 
 * Copyright (c) 2003 Electric Application Laboratory of NAN KAI University 
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met: 
 * 
 * 1. Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution. 
 * 3. The name of the author may not be used to endorse or promote products 
 *    derived from this software without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
 * OF SUCH DAMAGE. 
 * 
 * Author: Li Zhanglin  
 * 
 */ 
 
/* Network interface Head file */ 
 
/* the max number of netif */ 
#define NET_IF_MAX_NUM	1	 
#define NETIF_HEAD_MAX_LEN	14	/* the max  phsical layer head len. eg ethernet head len */ 
 
 
/* netif is associated with each netwok device */ 
struct SNetIf 
{ 
	struct SNetIf DT_XDATA *pNext;	/* point to the next netif */ 
	IP_ADDR IPAddr;			/* Ip address for this device */ 
	IP_ADDR NetMask;			/* Net mask for this device */ 
	IP_ADDR GateWay;			/* Gate way IP address fort this device */ 
 
	/* call input to get a packet from device to IP layer. This  
	function maybe 'EtherInput()', and called periodically */ 
	void (DT_CODE * input)(struct SNetIf DT_XDATA * NetIf) REENTRANT_SIG; 
 
	/* call output to put a packet from IP layer to device. After 
	Ip layer selected a device, it use output to send this packet. 
	MemHead contain a packet and Netif tell dirver which netif it  
	is. NOTE:MemHead->pStart point to pIPHead*/ 
	BOOL (DT_CODE * output)(struct SMemHead DT_XDATA *MemHead,struct SNetIf DT_XDATA* NetIf,DWORD DestIP) REENTRANT_SIG;	 
 
	void DT_XDATA *Info;	/* information of this device. eg. MAC address. */ 
}; 
void NetIfInit() REENTRANT_MUL; 
struct SNetIf DT_XDATA * NetIfAdd(DWORD IPAddr, DWORD NetMask,DWORD GateWay, 
						 void (DT_CODE * input)(struct SNetIf DT_XDATA * NetIf) REENTRANT_SIG, 
						 BOOL (DT_CODE * output)(struct SMemHead DT_XDATA *MemHead,struct SNetIf DT_XDATA* NetIf,DWORD DestIP) REENTRANT_SIG, 
						 void DT_XDATA * Info) REENTRANT_MUL; 
struct SNetIf DT_XDATA * NetIfFindRout(IP_ADDR IPAddr) REENTRANT_SIG; 
struct SNetIf DT_XDATA * NetIfFindIP(IP_ADDR IPAddr) REENTRANT_MUL; 
void NetIfTimer() REENTRANT_MUL;