82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
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/*
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* Copyright (c) 2017 Matthias Boesl
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/** @file
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* @brief IPv4 Autoconfiguration
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*
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* This is not to be included by the application.
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*/
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#ifndef __IPV4_AUTOCONF_INTERNAL_H
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#define __IPV4_AUTOCONF_INTERNAL_H
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#include <zephyr.h>
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#include <net/ipv4_autoconf.h>
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/* Initial random delay*/
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#define IPV4_AUTOCONF_PROBE_WAIT 1
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/* Number of probe packets */
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#define IPV4_AUTOCONF_PROBE_NUM 3
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/* Minimum delay till repeated probe */
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#define IPV4_AUTOCONF_PROBE_MIN 1
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/* Maximum delay till repeated probe */
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#define IPV4_AUTOCONF_PROBE_MAX 2
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/* Number of announcement packets */
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#define IPV4_AUTOCONF_ANNOUNCE_NUM 2
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/* Time between announcement packets */
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#define IPV4_AUTOCONF_ANNOUNCE_INTERVAL 2
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/* Max conflicts before rate limiting */
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#define IPV4_AUTOCONF_MAX_CONFLICTS 10
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/* Delay between successive attempts */
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#define IPV4_AUTOCONF_RATE_LIMIT_INTERVAL 60
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/* Minimum interval between defensive ARPs */
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#define IPV4_AUTOCONF_DEFEND_INTERVAL 10
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/* Time between carrier up and first probe */
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#define IPV4_AUTOCONF_START_DELAY 3
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/**
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* @brief Start IPv4 autocofiguration RFC 3927: IPv4 Link Local
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*
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* @details Start IPv4 IP autoconfiguration
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*
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* @param iface A valid pointer on an interface
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*/
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void net_ipv4_autoconf_start(struct net_if *iface);
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/**
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* @brief Reset autoconf process
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*
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* @details Reset IPv4 IP autoconfiguration
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*
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* @param iface A valid pointer on an interface
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*/
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void net_ipv4_autoconf_reset(struct net_if *iface);
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/**
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* @brief Autoconf ARP input message handler.
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*
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* @details Called when ARP message is received when auto is enabled.
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*
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* @param iface A valid pointer on an interface
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* @param pkt Received network packet
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*
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* @return What should be done with packet (drop or accept)
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*/
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enum net_verdict net_ipv4_autoconf_input(struct net_if *iface,
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struct net_pkt *pkt);
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#endif /* __IPV4_AUTOCONF_INTERNAL_H */
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