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/*
 * 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, <bir7@leland.Stanford.Edu>
 *              Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *
 *              Relocated to include/linux where it belongs by Alan Cox
 *                                                      <gw4pts@gw4pts.ampr.org>
 *
 *              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 net_device *dev,
                                   unsigned short type, void *daddr,
                                   void *saddr, unsigned len);
extern int              eth_rebuild_header(struct sk_buff *skb);
extern unsigned short   eth_type_trans(struct sk_buff *skb, struct net_device *dev);
extern void             eth_header_cache_update(struct hh_cache *hh, struct net_device *dev,
                                                unsigned char * haddr);
extern int              eth_header_cache(struct neighbour *neigh,
                                         struct hh_cache *hh);
extern int              eth_header_parse(struct sk_buff *skb,
                                         unsigned char *haddr);
extern struct net_device *__init_etherdev(struct net_device *dev, int sizeof_priv);
static inline struct net_device *init_etherdev(struct net_device *dev,
                                                            int sizeof_priv)
{
        return __init_etherdev(dev, sizeof_priv);
}

extern struct net_device *alloc_etherdev(int sizeof_priv);
static inline void eth_copy_and_sum (struct sk_buff *dest, unsigned char *src, int len, int base)
{
        memcpy (dest->data, src, len);
}

/**
 * is_valid_ether_addr - Determine if the given Ethernet address is valid
 * @addr: Pointer to a six-byte array containing the Ethernet address
 *
 * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not
 * a multicast address, and is not FF:FF:FF:FF:FF:FF.  The multicast
 * and FF:FF:... tests are combined into the single test "!(addr[0]&1)".
 *
 * Return true if the address is valid.
 */
static inline int is_valid_ether_addr( u8 *addr )
{
        const char zaddr[6] = {0,};

        return !(addr[0]&1) && memcmp( addr, zaddr, 6);
}

#endif

#endif  /* _LINUX_ETHERDEVICE_H */