1 /*- 2 * Copyright (c) 2015 Mellanox Technologies, Ltd. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice unmodified, this list of conditions, and the following 9 * disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 #ifndef _LINUX_ETHERDEVICE 28 #define _LINUX_ETHERDEVICE 29 30 #include <linux/types.h> 31 32 static inline bool 33 is_zero_ether_addr(const u8 * addr) 34 { 35 return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == 0x00); 36 } 37 38 static inline bool 39 is_multicast_ether_addr(const u8 * addr) 40 { 41 return (0x01 & addr[0]); 42 } 43 44 static inline bool 45 is_broadcast_ether_addr(const u8 * addr) 46 { 47 return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == (6 * 0xff)); 48 } 49 50 static inline bool 51 is_valid_ether_addr(const u8 * addr) 52 { 53 return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr); 54 } 55 56 static inline void 57 ether_addr_copy(u8 * dst, const u8 * src) 58 { 59 memcpy(dst, src, 6); 60 } 61 62 #endif /* _LINUX_ETHERDEVICE */ 63