107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
/****************************************************************************
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* include/nuttx/net/neighbor.h
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* Definitions for use with IPv6 Neighbor Table
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_NET_NEIGHBOR_H
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#define __INCLUDE_NUTTX_NET_NEIGHBOR_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <net/ethernet.h>
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#include <nuttx/clock.h>
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#include <nuttx/net/ip.h>
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#include <nuttx/net/netdev.h>
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#ifdef CONFIG_NET_IPv6
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef CONFIG_NET_IPv6_NCONF_ENTRIES
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# define CONFIG_NET_IPv6_NCONF_ENTRIES 8
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Describes the link layer address */
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struct neighbor_addr_s
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{
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uint8_t na_lltype; /* See enum net_lltype_e */
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uint8_t na_llsize; /* Link layer header size */
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union
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{
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#ifdef CONFIG_NET_ETHERNET
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struct ether_addr na_ethernet;
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#endif
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#ifdef CONFIG_NET_6LOWPAN
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struct netdev_maxaddr_s na_sixlowpan;
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#endif
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uint8_t na_addr[1];
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} u;
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};
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/* This structure describes on entry in the neighbor table. This is intended
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* for internal use within the Neighbor implementation.
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*
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* An unused entry can be detected by all zero entries, particularly the
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* ne_ipaddr (the IPv6 unspecified address) which should never be zero for a
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* real neighbor.
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*/
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struct neighbor_entry_s
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{
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net_ipv6addr_t ne_ipaddr; /* IPv6 address of the Neighbor */
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struct neighbor_addr_s ne_addr; /* Link layer address of the Neighbor */
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clock_t ne_time; /* For aging, units of tick */
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FAR struct net_driver_s *ne_dev; /* The device driver structure */
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};
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_NET_LOOPBACK */
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#endif /* __INCLUDE_NUTTX_NET_NEIGHBOR_H */
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