mirror of
https://github.com/zephyrproject-rtos/zephyr
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2a795a19ff
IPv6 mcast addr to MAC mcast conversion was factored out to subsys/net/ip/l2/ethernet.c for reuse by other drivers. Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
106 lines
1.9 KiB
C
106 lines
1.9 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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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __ETHERNET_H
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#define __ETHERNET_H
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#include <zephyr/types.h>
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#include <stdbool.h>
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#include <net/net_ip.h>
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#include <net/net_pkt.h>
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#include <misc/util.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Ethernet support functions
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* @defgroup ethernet Ethernet Support Functions
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* @ingroup networking
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* @{
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*/
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#define NET_ETH_HDR(pkt) ((struct net_eth_hdr *)net_pkt_ll(pkt))
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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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#define NET_ETH_MINIMAL_FRAME_SIZE 60
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struct net_eth_addr {
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u8_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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u16_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 defined(CONFIG_NET_IPV6)
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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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#endif
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#if defined(CONFIG_NET_IPV4)
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if (addr->addr[0] == 0x01 &&
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addr->addr[1] == 0x00 &&
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addr->addr[2] == 0x5e) {
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return true;
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}
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#endif
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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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/**
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* @brief Convert IPv6 multicast address to Ethernet address.
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*
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* @param ipv6_addr IPv6 multicast address
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* @param mac_addr Output buffer for Ethernet address
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*/
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void net_eth_ipv6_mcast_to_mac_addr(const struct in6_addr *ipv6_addr,
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struct net_eth_addr *mac_addr);
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#ifdef __cplusplus
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}
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#endif
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/**
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* @}
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*/
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#endif /* __ETHERNET_H */
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