1/* 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 25 * OF SUCH DAMAGE. 26 * 27 * This file is part of the lwIP TCP/IP stack. 28 * 29 * Author: Adam Dunkels <adam@sics.se> 30 * 31 */ 32#ifndef __LWIP_IP_ADDR_H__ 33#define __LWIP_IP_ADDR_H__ 34 35#include "lwip/opt.h" 36 37#include <arpa/inet.h> 38 39#ifdef __cplusplus 40extern "C" { 41#endif 42 43#ifdef PACK_STRUCT_USE_INCLUDES 44#include "arch/bpstruct.h" 45#endif 46 PACK_STRUCT_BEGIN struct ip_addr { 47 PACK_STRUCT_FIELD(u32_t addr); 48 } PACK_STRUCT_STRUCT; 49 PACK_STRUCT_END 50#ifdef PACK_STRUCT_USE_INCLUDES 51#include "arch/epstruct.h" 52#endif 53 54// XXX: In lwIP 1.3.1 this is all the same. 55typedef struct ip_addr ip_addr_t; 56typedef struct ip_addr ip_addr_p_t; 57 58/* 59 * struct ipaddr2 is used in the definition of the ARP packet format in 60 * order to support compilers that don't have structure packing. 61 */ 62#ifdef PACK_STRUCT_USE_INCLUDES 63#include "arch/bpstruct.h" 64#endif 65 PACK_STRUCT_BEGIN struct ip_addr2 { 66 PACK_STRUCT_FIELD(u16_t addrw[2]); 67 } PACK_STRUCT_STRUCT; 68 PACK_STRUCT_END 69#ifdef PACK_STRUCT_USE_INCLUDES 70#include "arch/epstruct.h" 71#endif 72 struct netif; 73 74 extern const struct ip_addr ip_addr_any; 75 extern const struct ip_addr ip_addr_broadcast; 76 77/** IP_ADDR_ can be used as a fixed IP address 78 * for the wildcard and the broadcast address 79 */ 80#define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any) 81#define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast) 82 83/** 255.255.255.255 */ 84#define IPADDR_NONE ((u32_t)0xffffffffUL) 85/** 127.0.0.1 */ 86#define IPADDR_LOOPBACK ((u32_t)0x7f000001UL) 87/** 0.0.0.0 */ 88#define IPADDR_ANY ((u32_t)0x00000000UL) 89/** 255.255.255.255 */ 90#define IPADDR_BROADCAST ((u32_t)0xffffffffUL) 91 92#define IP4_ADDR(ipaddr, a,b,c,d) \ 93 (ipaddr)->addr = htonl(((u32_t)((a) & 0xff) << 24) | \ 94 ((u32_t)((b) & 0xff) << 16) | \ 95 ((u32_t)((c) & 0xff) << 8) | \ 96 (u32_t)((d) & 0xff)) 97 98#define ip_addr_set(dest, src) (dest)->addr = \ 99 ((src) == NULL? 0:\ 100 (src)->addr) 101 102/** IPv4 only: set the IP address given as an u32_t */ 103#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32)) 104/** IPv4 only: get the IP address as an u32_t */ 105#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr) 106 107/** 108 * Determine if two address are on the same network. 109 * 110 * @arg addr1 IP address 1 111 * @arg addr2 IP address 2 112 * @arg mask network identifier mask 113 * @return !0 if the network identifiers of both address match 114 */ 115#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \ 116 (mask)->addr) == \ 117 ((addr2)->addr & \ 118 (mask)->addr)) 119#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr) 120 121#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0) 122 123 u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *); 124 125#define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000UL)) == ntohl(0xe0000000UL)) 126 127#define ip_addr_islinklocal(addr1) (((addr1)->addr & ntohl(0xffff0000UL)) == ntohl(0xa9fe0000UL)) 128 129#define ip_addr_debug_print(debug, ipaddr) \ 130 LWIP_DEBUGF(debug, ("%" U16_F ".%" U16_F ".%" U16_F ".%" U16_F, \ 131 ipaddr != NULL ? \ 132 (u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \ 133 ipaddr != NULL ? \ 134 (u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \ 135 ipaddr != NULL ? \ 136 (u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \ 137 ipaddr != NULL ? \ 138 (u16_t)ntohl((ipaddr)->addr) & 0xff : 0)) 139 140/* These are cast to u16_t, with the intent that they are often arguments 141 * to printf using the U16_F format from cc.h. */ 142#define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff) 143#define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff) 144#define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff) 145#define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff) 146 147#ifdef __cplusplus 148} 149#endif 150#endif /* __LWIP_IP_ADDR_H__ */ 151