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b4b296b888
As the broadcast address is needed in both arp.c and ethernet.c it is useful to create a utility function for returning that. Change-Id: I26e75e325f7ee6dcd703a92b3349bd8d388e157e Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/** @file
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@brief Ethernet
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This is not to be included by the application.
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*/
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __ETHERNET_H
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#define __ETHERNET_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <net/net_ip.h>
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#include <net/nbuf.h>
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#define NET_ETH_BUF(buf) ((struct net_eth_hdr *)net_nbuf_ll(buf))
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#define NET_ETH_PTYPE_ARP 0x0806
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#define NET_ETH_PTYPE_IP 0x0800
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#define NET_ETH_PTYPE_IPV6 0x86dd
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struct net_eth_addr {
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uint8_t addr[6];
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};
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struct net_eth_hdr {
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struct net_eth_addr dst;
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struct net_eth_addr src;
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uint16_t type;
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} __packed;
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static inline bool net_eth_is_addr_broadcast(struct net_eth_addr *addr)
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{
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if (addr->addr[0] == 0xff &&
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addr->addr[1] == 0xff &&
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addr->addr[2] == 0xff &&
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addr->addr[3] == 0xff &&
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addr->addr[4] == 0xff &&
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addr->addr[5] == 0xff) {
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return true;
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}
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return false;
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}
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static inline bool net_eth_is_addr_multicast(struct net_eth_addr *addr)
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{
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if (addr->addr[0] == 0x33 &&
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addr->addr[1] == 0x33) {
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return true;
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}
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return false;
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}
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const struct net_eth_addr *net_eth_broadcast_addr(void);
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#endif /* __ETHERNET_H */
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