+++ /dev/null
-/*
- * 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
- * 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>
-#include <linux/netdevice.h>
-#include <linux/random.h>
-
-#ifdef __KERNEL__
-extern __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev);
-extern const struct header_ops eth_header_ops;
-
-extern int eth_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type,
- const void *daddr, const void *saddr, unsigned len);
-extern int eth_rebuild_header(struct sk_buff *skb);
-extern int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr);
-extern int eth_header_cache(const struct neighbour *neigh, struct hh_cache *hh);
-extern void eth_header_cache_update(struct hh_cache *hh,
- const struct net_device *dev,
- const unsigned char *haddr);
-
-
-extern struct net_device *alloc_etherdev_mq(int sizeof_priv, unsigned int queue_count);
-#define alloc_etherdev(sizeof_priv) alloc_etherdev_mq(sizeof_priv, 1)
-
-/**
- * is_zero_ether_addr - Determine if give Ethernet address is all zeros.
- * @addr: Pointer to a six-byte array containing the Ethernet address
- *
- * Return true if the address is all zeroes.
- */
-static inline int is_zero_ether_addr(const u8 *addr)
-{
- return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
-}
-
-/**
- * is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
- * @addr: Pointer to a six-byte array containing the Ethernet address
- *
- * Return true if the address is a multicast address.
- * By definition the broadcast address is also a multicast address.
- */
-static inline int is_multicast_ether_addr(const u8 *addr)
-{
- return (0x01 & addr[0]);
-}
-
-/**
- * is_local_ether_addr - Determine if the Ethernet address is locally-assigned one (IEEE 802).
- * @addr: Pointer to a six-byte array containing the Ethernet address
- *
- * Return true if the address is a local address.
- */
-static inline int is_local_ether_addr(const u8 *addr)
-{
- return (0x02 & addr[0]);
-}
-
-/**
- * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast
- * @addr: Pointer to a six-byte array containing the Ethernet address
- *
- * Return true if the address is the broadcast address.
- */
-static inline int is_broadcast_ether_addr(const u8 *addr)
-{
- return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff;
-}
-
-/**
- * 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.
- *
- * Return true if the address is valid.
- */
-static inline int is_valid_ether_addr(const u8 *addr)
-{
- /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to
- * explicitly check for it here. */
- return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
-}
-
-/**
- * random_ether_addr - Generate software assigned random Ethernet address
- * @addr: Pointer to a six-byte array containing the Ethernet address
- *
- * Generate a random Ethernet address (MAC) that is not multicast
- * and has the local assigned bit set.
- */
-static inline void random_ether_addr(u8 *addr)
-{
- get_random_bytes (addr, ETH_ALEN);
- addr [0] &= 0xfe; /* clear multicast bit */
- addr [0] |= 0x02; /* set local assignment bit (IEEE802) */
-}
-
-/**
- * compare_ether_addr - Compare two Ethernet addresses
- * @addr1: Pointer to a six-byte array containing the Ethernet address
- * @addr2: Pointer other six-byte array containing the Ethernet address
- *
- * Compare two ethernet addresses, returns 0 if equal
- */
-static inline unsigned compare_ether_addr(const u8 *addr1, const u8 *addr2)
-{
- const u16 *a = (const u16 *) addr1;
- const u16 *b = (const u16 *) addr2;
-
- BUILD_BUG_ON(ETH_ALEN != 6);
- return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0;
-}
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_ETHERDEVICE_H */
projects / l4.git / blobdiff