/* | |
* Copyright (c) 2001-2004 Swedish Institute of Computer Science. | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without modification, | |
* are permitted provided that the following conditions are met: | |
* | |
* 1. Redistributions of source code must retain the above copyright notice, | |
* this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright notice, | |
* this list of conditions and the following disclaimer in the documentation | |
* and/or other materials provided with the distribution. | |
* 3. The name of the author may not be used to endorse or promote products | |
* derived from this software without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT | |
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT | |
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY | |
* OF SUCH DAMAGE. | |
* | |
* This file is part of the lwIP TCP/IP stack. | |
* | |
* Author: Adam Dunkels <adam@sics.se> | |
* | |
*/ | |
#ifndef __LWIP_IP_ADDR_H__ | |
#define __LWIP_IP_ADDR_H__ | |
#include "lwip/opt.h" | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
#ifdef PACK_STRUCT_USE_INCLUDES | |
# include "arch/bpstruct.h" | |
#endif | |
PACK_STRUCT_BEGIN | |
#if (defined(__MWERKS__) || defined(__CWCC__)) | |
#pragma options align= packed | |
#endif | |
struct ip_addr { | |
PACK_STRUCT_FIELD(u32_t addr); | |
} PACK_STRUCT_STRUCT; | |
PACK_STRUCT_END | |
#ifdef PACK_STRUCT_USE_INCLUDES | |
# include "arch/epstruct.h" | |
#endif | |
/* | |
* struct ipaddr2 is used in the definition of the ARP packet format in | |
* order to support compilers that don't have structure packing. | |
*/ | |
#ifdef PACK_STRUCT_USE_INCLUDES | |
# include "arch/bpstruct.h" | |
#endif | |
PACK_STRUCT_BEGIN | |
#if (defined(__MWERKS__) || defined(__CWCC__)) | |
#pragma options align= packed | |
#endif | |
struct ip_addr2 { | |
PACK_STRUCT_FIELD(u16_t addrw[2]); | |
} PACK_STRUCT_STRUCT; | |
PACK_STRUCT_END | |
#ifdef PACK_STRUCT_USE_INCLUDES | |
# include "arch/epstruct.h" | |
#endif | |
/* For compatibility with BSD code */ | |
struct in_addr { | |
u32_t s_addr; | |
}; | |
struct netif; | |
extern const struct ip_addr ip_addr_any; | |
extern const struct ip_addr ip_addr_broadcast; | |
/** IP_ADDR_ can be used as a fixed IP address | |
* for the wildcard and the broadcast address | |
*/ | |
#define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any) | |
#define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast) | |
#define INADDR_NONE ((u32_t)0xffffffffUL) /* 255.255.255.255 */ | |
#define INADDR_LOOPBACK ((u32_t)0x7f000001UL) /* 127.0.0.1 */ | |
/* Definitions of the bits in an Internet address integer. | |
On subnets, host and network parts are found according to | |
the subnet mask, not these masks. */ | |
#define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0) | |
#define IN_CLASSA_NET 0xff000000 | |
#define IN_CLASSA_NSHIFT 24 | |
#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) | |
#define IN_CLASSA_MAX 128 | |
#define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL) | |
#define IN_CLASSB_NET 0xffff0000 | |
#define IN_CLASSB_NSHIFT 16 | |
#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) | |
#define IN_CLASSB_MAX 65536 | |
#define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL) | |
#define IN_CLASSC_NET 0xffffff00 | |
#define IN_CLASSC_NSHIFT 8 | |
#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) | |
#define IN_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL) | |
#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ | |
#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ | |
#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ | |
#define IN_MULTICAST(a) IN_CLASSD(a) | |
#define IN_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL) | |
#define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL) | |
#define IN_LOOPBACKNET 127 /* official! */ | |
#define IP4_ADDR(ipaddr, a,b,c,d) \ | |
(ipaddr)->addr = htonl(((u32_t)((a) & 0xff) << 24) | \ | |
((u32_t)((b) & 0xff) << 16) | \ | |
((u32_t)((c) & 0xff) << 8) | \ | |
(u32_t)((d) & 0xff)) | |
#define ip_addr_set(dest, src) (dest)->addr = \ | |
((src) == NULL? 0:\ | |
(src)->addr) | |
/** | |
* Determine if two address are on the same network. | |
* | |
* @arg addr1 IP address 1 | |
* @arg addr2 IP address 2 | |
* @arg mask network identifier mask | |
* @return !0 if the network identifiers of both address match | |
*/ | |
#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \ | |
(mask)->addr) == \ | |
((addr2)->addr & \ | |
(mask)->addr)) | |
#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr) | |
#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0) | |
u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *); | |
#define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000UL)) == ntohl(0xe0000000UL)) | |
#define ip_addr_islinklocal(addr1) (((addr1)->addr & ntohl(0xffff0000UL)) == ntohl(0xa9fe0000UL)) | |
#define ip_addr_debug_print(debug, ipaddr) \ | |
LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \ | |
ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \ | |
ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \ | |
ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \ | |
ipaddr ? (u16_t)ntohl((ipaddr)->addr) & 0xff : 0)) | |
/* These are cast to u16_t, with the intent that they are often arguments | |
* to printf using the U16_F format from cc.h. */ | |
#define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff) | |
#define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff) | |
#define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff) | |
#define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff) | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif /* __LWIP_IP_ADDR_H__ */ |