etherdevice.h

GNU Mach 微内核源代码, 基于美国卡内基美隆大学的 Mach 研究项目

/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  NET  is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		Definitions for the Ethernet handlers.
 *
 * Version:	@(#)eth.h	1.0.4	05/13/93
 *
 * Authors:	Ross Biro, <[e-mail]>
 *		Fred N. van Kempen, <[e-mail]>
 *
 *		Relocated to include/linux where it belongs by Alan Cox 
 *							<[e-mail]>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 *
 *	WARNING: This move may well be temporary. This file will get merged with others RSN.
 *
 */
#ifndef _LINUX_ETHERDEVICE_H
#define _LINUX_ETHERDEVICE_H


#include <linux/if_ether.h>

#ifdef __KERNEL__
extern int		eth_header(struct sk_buff *skb, struct device *dev,
				   unsigned short type, void *daddr,
				   void *saddr, unsigned len);
extern int		eth_rebuild_header(void *buff, struct device *dev,
			unsigned long dst, struct sk_buff *skb);

/* This cause skb->protocol = 0. I don't sure if this is really ok.
 * Last modified: 19980402 by OKUJI Yoshinori <[e-mail]>
 */
#ifdef MACH
#define eth_type_trans(skb, dev)	((unsigned short)0)
#else
extern unsigned short	eth_type_trans(struct sk_buff *skb, struct device *dev);
#endif

extern void eth_header_cache_bind(struct hh_cache ** hhp, struct device *dev,
				  unsigned short htype, __u32 daddr);
extern void eth_header_cache_update(struct hh_cache *hh, struct device *dev, unsigned char * haddr);

#ifdef MACH
#define eth_copy_and_sum(dest, src, length, base) \
	memcpy((dest)->data, src, length)
#else
extern void		eth_copy_and_sum(struct sk_buff *dest,
				unsigned char *src, int length, int base);
#endif

extern struct device	* init_etherdev(struct device *, int);

#endif

#endif	/* _LINUX_ETHERDEVICE_H */