ac74d8b652
Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
90 lines
1.8 KiB
C
90 lines
1.8 KiB
C
/*
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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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/**
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* @file
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* @brief Public API for network link address
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*/
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#ifndef __NET_LINKADDR_H__
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#define __NET_LINKADDR_H__
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#include <stdint.h>
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#include <stdbool.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 Hardware link address structure
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*
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* Used to hold the link address information
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*/
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struct net_linkaddr {
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/** The array of byte representing the address */
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uint8_t *addr;
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/** Length of that address array */
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uint8_t len;
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};
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/**
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* @brief Hardware link address structure
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*
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* Used to hold the link address information. This variant is needed
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* when we have to store the link layer address.
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* Note that you cannot cast this to net_linkaddr as they store
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* different things.
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*/
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struct net_linkaddr_storage {
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/** The real length of the ll address. */
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uint8_t len;
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union {
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/** The array of bytes representing the address */
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uint8_t addr[0];
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struct {
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/* The integer array allocate total of 8 bytes
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* that can hold currently all the supported
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* link layer addresses. These int's can be
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* used when comparing lladdr instead of using
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* memcmp()
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*/
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uint32_t storage[2];
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};
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};
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};
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/**
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* @brief Compare two link layer addresses.
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*
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* @param lladdr1 Pointer to a link layer address
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* @param lladdr2 Pointer to a link layer address
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*
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* @return True if the addresses are the same, false otherwise.
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*/
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static inline bool net_linkaddr_cmp(struct net_linkaddr *lladdr1,
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struct net_linkaddr *lladdr2)
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{
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if (!lladdr1 || !lladdr2) {
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return false;
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}
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if (lladdr1->len != lladdr2->len) {
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return false;
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}
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return !memcmp(lladdr1->addr, lladdr2->addr, lladdr1->len);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* __NET_LINKADDR_H__ */
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