1/** 2 * @file 3 * This file (together with sockets.h) aims to provide structs and functions from 4 * - arpa/inet.h 5 * - netinet/in.h 6 * 7 */ 8 9/* 10 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 11 * All rights reserved. 12 * 13 * Redistribution and use in source and binary forms, with or without modification, 14 * are permitted provided that the following conditions are met: 15 * 16 * 1. Redistributions of source code must retain the above copyright notice, 17 * this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright notice, 19 * this list of conditions and the following disclaimer in the documentation 20 * and/or other materials provided with the distribution. 21 * 3. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 27 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 28 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 29 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 33 * OF SUCH DAMAGE. 34 * 35 * This file is part of the lwIP TCP/IP stack. 36 * 37 * Author: Adam Dunkels <adam@sics.se> 38 * 39 */ 40#ifndef LWIP_HDR_INET_H 41#define LWIP_HDR_INET_H 42 43#include "lwip/opt.h" 44#include "lwip/def.h" 45#include "lwip/ip_addr.h" 46#include "lwip/ip6_addr.h" 47 48#ifdef __cplusplus 49extern "C" { 50#endif 51 52/* If your port already typedef's in_addr_t, define IN_ADDR_T_DEFINED 53 to prevent this code from redefining it. */ 54#if !defined(in_addr_t) && !defined(IN_ADDR_T_DEFINED) 55typedef u32_t in_addr_t; 56#endif 57 58struct in_addr { 59 in_addr_t s_addr; 60}; 61 62struct in6_addr { 63 union { 64 u32_t u32_addr[4]; 65 u8_t u8_addr[16]; 66 } un; 67#define s6_addr un.u8_addr 68}; 69 70/** 255.255.255.255 */ 71#define INADDR_NONE IPADDR_NONE 72/** 127.0.0.1 */ 73#define INADDR_LOOPBACK IPADDR_LOOPBACK 74/** 0.0.0.0 */ 75#define INADDR_ANY IPADDR_ANY 76/** 255.255.255.255 */ 77#define INADDR_BROADCAST IPADDR_BROADCAST 78 79/** This macro can be used to initialize a variable of type struct in6_addr 80 to the IPv6 wildcard address. */ 81#define IN6ADDR_ANY_INIT {{{0,0,0,0}}} 82/** This macro can be used to initialize a variable of type struct in6_addr 83 to the IPv6 loopback address. */ 84#define IN6ADDR_LOOPBACK_INIT {{{0,0,0,PP_HTONL(1)}}} 85/** This variable is initialized by the system to contain the wildcard IPv6 address. */ 86extern const struct in6_addr in6addr_any; 87 88/* Definitions of the bits in an (IPv4) Internet address integer. 89 90 On subnets, host and network parts are found according to 91 the subnet mask, not these masks. */ 92#define IN_CLASSA(a) IP_CLASSA(a) 93#define IN_CLASSA_NET IP_CLASSA_NET 94#define IN_CLASSA_NSHIFT IP_CLASSA_NSHIFT 95#define IN_CLASSA_HOST IP_CLASSA_HOST 96#define IN_CLASSA_MAX IP_CLASSA_MAX 97 98#define IN_CLASSB(b) IP_CLASSB(b) 99#define IN_CLASSB_NET IP_CLASSB_NET 100#define IN_CLASSB_NSHIFT IP_CLASSB_NSHIFT 101#define IN_CLASSB_HOST IP_CLASSB_HOST 102#define IN_CLASSB_MAX IP_CLASSB_MAX 103 104#define IN_CLASSC(c) IP_CLASSC(c) 105#define IN_CLASSC_NET IP_CLASSC_NET 106#define IN_CLASSC_NSHIFT IP_CLASSC_NSHIFT 107#define IN_CLASSC_HOST IP_CLASSC_HOST 108#define IN_CLASSC_MAX IP_CLASSC_MAX 109 110#define IN_CLASSD(d) IP_CLASSD(d) 111#define IN_CLASSD_NET IP_CLASSD_NET /* These ones aren't really */ 112#define IN_CLASSD_NSHIFT IP_CLASSD_NSHIFT /* net and host fields, but */ 113#define IN_CLASSD_HOST IP_CLASSD_HOST /* routing needn't know. */ 114#define IN_CLASSD_MAX IP_CLASSD_MAX 115 116#define IN_MULTICAST(a) IP_MULTICAST(a) 117 118#define IN_EXPERIMENTAL(a) IP_EXPERIMENTAL(a) 119#define IN_BADCLASS(a) IP_BADCLASS(a) 120 121#define IN_LOOPBACKNET IP_LOOPBACKNET 122 123 124#ifndef INET_ADDRSTRLEN 125#define INET_ADDRSTRLEN IP4ADDR_STRLEN_MAX 126#endif 127#if LWIP_IPV6 128#ifndef INET6_ADDRSTRLEN 129#define INET6_ADDRSTRLEN IP6ADDR_STRLEN_MAX 130#endif 131#endif 132 133#if LWIP_IPV4 134 135#define inet_addr_from_ip4addr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr)) 136#define inet_addr_to_ip4addr(target_ipaddr, source_inaddr) (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr)) 137/* ATTENTION: the next define only works because both s_addr and ip4_addr_t are an u32_t effectively! */ 138#define inet_addr_to_ip4addr_p(target_ip4addr_p, source_inaddr) ((target_ip4addr_p) = (ip4_addr_t*)&((source_inaddr)->s_addr)) 139 140/* directly map this to the lwip internal functions */ 141#define inet_addr(cp) ipaddr_addr(cp) 142#define inet_aton(cp, addr) ip4addr_aton(cp, (ip4_addr_t*)addr) 143#define inet_ntoa(addr) ip4addr_ntoa((const ip4_addr_t*)&(addr)) 144#define inet_ntoa_r(addr, buf, buflen) ip4addr_ntoa_r((const ip4_addr_t*)&(addr), buf, buflen) 145 146#endif /* LWIP_IPV4 */ 147 148#if LWIP_IPV6 149#define inet6_addr_from_ip6addr(target_in6addr, source_ip6addr) {(target_in6addr)->un.u32_addr[0] = (source_ip6addr)->addr[0]; \ 150 (target_in6addr)->un.u32_addr[1] = (source_ip6addr)->addr[1]; \ 151 (target_in6addr)->un.u32_addr[2] = (source_ip6addr)->addr[2]; \ 152 (target_in6addr)->un.u32_addr[3] = (source_ip6addr)->addr[3];} 153#define inet6_addr_to_ip6addr(target_ip6addr, source_in6addr) {(target_ip6addr)->addr[0] = (source_in6addr)->un.u32_addr[0]; \ 154 (target_ip6addr)->addr[1] = (source_in6addr)->un.u32_addr[1]; \ 155 (target_ip6addr)->addr[2] = (source_in6addr)->un.u32_addr[2]; \ 156 (target_ip6addr)->addr[3] = (source_in6addr)->un.u32_addr[3];} 157/* ATTENTION: the next define only works because both in6_addr and ip6_addr_t are an u32_t[4] effectively! */ 158#define inet6_addr_to_ip6addr_p(target_ip6addr_p, source_in6addr) ((target_ip6addr_p) = (ip6_addr_t*)(source_in6addr)) 159 160/* directly map this to the lwip internal functions */ 161#define inet6_aton(cp, addr) ip6addr_aton(cp, (ip6_addr_t*)addr) 162#define inet6_ntoa(addr) ip6addr_ntoa((const ip6_addr_t*)&(addr)) 163#define inet6_ntoa_r(addr, buf, buflen) ip6addr_ntoa_r((const ip6_addr_t*)&(addr), buf, buflen) 164 165#endif /* LWIP_IPV6 */ 166 167 168#ifdef __cplusplus 169} 170#endif 171 172#endif /* LWIP_HDR_INET_H */ 173