1 /* 2 * Copyright (c) 2017 Matthias Boesl 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 /** @file 8 * @brief IPv4 Autoconfiguration 9 * 10 * This is not to be included by the application. 11 */ 12 13 #ifndef __IPV4_AUTOCONF_INTERNAL_H 14 #define __IPV4_AUTOCONF_INTERNAL_H 15 16 #include <zephyr.h> 17 18 #include <net/ipv4_autoconf.h> 19 20 /* Initial random delay*/ 21 #define IPV4_AUTOCONF_PROBE_WAIT 1 22 23 /* Number of probe packets */ 24 #define IPV4_AUTOCONF_PROBE_NUM 3 25 26 /* Minimum delay till repeated probe */ 27 #define IPV4_AUTOCONF_PROBE_MIN 1 28 29 /* Maximum delay till repeated probe */ 30 #define IPV4_AUTOCONF_PROBE_MAX 2 31 32 /* Number of announcement packets */ 33 #define IPV4_AUTOCONF_ANNOUNCE_NUM 2 34 35 /* Time between announcement packets */ 36 #define IPV4_AUTOCONF_ANNOUNCE_INTERVAL 2 37 38 /* Max conflicts before rate limiting */ 39 #define IPV4_AUTOCONF_MAX_CONFLICTS 10 40 41 /* Delay between successive attempts */ 42 #define IPV4_AUTOCONF_RATE_LIMIT_INTERVAL 60 43 44 /* Minimum interval between defensive ARPs */ 45 #define IPV4_AUTOCONF_DEFEND_INTERVAL 10 46 47 /* Time between carrier up and first probe */ 48 #define IPV4_AUTOCONF_START_DELAY 3 49 50 /** 51 * @brief Start IPv4 autocofiguration RFC 3927: IPv4 Link Local 52 * 53 * @details Start IPv4 IP autoconfiguration 54 * 55 * @param iface A valid pointer on an interface 56 */ 57 #if defined(CONFIG_NET_IPV4_AUTO) 58 void net_ipv4_autoconf_start(struct net_if *iface); 59 #else 60 #define net_ipv4_autoconf_start(...) 61 #endif 62 63 /** 64 * @brief Reset autoconf process 65 * 66 * @details Reset IPv4 IP autoconfiguration 67 * 68 * @param iface A valid pointer on an interface 69 */ 70 #if defined(CONFIG_NET_IPV4_AUTO) 71 void net_ipv4_autoconf_reset(struct net_if *iface); 72 #else 73 #define net_ipv4_autoconf_reset(...) 74 #endif 75 76 /** 77 * @brief Autoconf ARP input message handler. 78 * 79 * @details Called when ARP message is received when auto is enabled. 80 * 81 * @param iface A valid pointer on an interface 82 * @param pkt Received network packet 83 * 84 * @return What should be done with packet (drop or accept) 85 */ 86 #if defined(CONFIG_NET_IPV4_AUTO) 87 enum net_verdict net_ipv4_autoconf_input(struct net_if *iface, 88 struct net_pkt *pkt); 89 #else 90 #define net_ipv4_autoconf_input(...) NET_CONTINUE 91 #endif 92 93 #endif /* __IPV4_AUTOCONF_INTERNAL_H */ 94
