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Core/lwIP/include/ipv4/lwip/ip_addr.h@0:6dee052a3fa4, 2011-07-26 (annotated)

Committer:: nandgate
Date:: Tue Jul 26 05:30:53 2011 +0000
Revision:: 0:6dee052a3fa4

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nandgate	0:6dee052a3fa4	1	/*
nandgate	0:6dee052a3fa4	2	* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
nandgate	0:6dee052a3fa4	3	* All rights reserved.
nandgate	0:6dee052a3fa4	4	*
nandgate	0:6dee052a3fa4	5	* Redistribution and use in source and binary forms, with or without modification,
nandgate	0:6dee052a3fa4	6	* are permitted provided that the following conditions are met:
nandgate	0:6dee052a3fa4	7	*
nandgate	0:6dee052a3fa4	8	* 1. Redistributions of source code must retain the above copyright notice,
nandgate	0:6dee052a3fa4	9	* this list of conditions and the following disclaimer.
nandgate	0:6dee052a3fa4	10	* 2. Redistributions in binary form must reproduce the above copyright notice,
nandgate	0:6dee052a3fa4	11	* this list of conditions and the following disclaimer in the documentation
nandgate	0:6dee052a3fa4	12	* and/or other materials provided with the distribution.
nandgate	0:6dee052a3fa4	13	* 3. The name of the author may not be used to endorse or promote products
nandgate	0:6dee052a3fa4	14	* derived from this software without specific prior written permission.
nandgate	0:6dee052a3fa4	15	*
nandgate	0:6dee052a3fa4	16	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
nandgate	0:6dee052a3fa4	17	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
nandgate	0:6dee052a3fa4	18	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
nandgate	0:6dee052a3fa4	19	* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
nandgate	0:6dee052a3fa4	20	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
nandgate	0:6dee052a3fa4	21	* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
nandgate	0:6dee052a3fa4	22	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
nandgate	0:6dee052a3fa4	23	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
nandgate	0:6dee052a3fa4	24	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
nandgate	0:6dee052a3fa4	25	* OF SUCH DAMAGE.
nandgate	0:6dee052a3fa4	26	*
nandgate	0:6dee052a3fa4	27	* This file is part of the lwIP TCP/IP stack.
nandgate	0:6dee052a3fa4	28	*
nandgate	0:6dee052a3fa4	29	* Author: Adam Dunkels <adam@sics.se>
nandgate	0:6dee052a3fa4	30	*
nandgate	0:6dee052a3fa4	31	*/
nandgate	0:6dee052a3fa4	32	#ifndef __LWIP_IP_ADDR_H__
nandgate	0:6dee052a3fa4	33	#define __LWIP_IP_ADDR_H__
nandgate	0:6dee052a3fa4	34
nandgate	0:6dee052a3fa4	35	#include "lwip/opt.h"
nandgate	0:6dee052a3fa4	36
nandgate	0:6dee052a3fa4	37	#include "lwip/inet.h"
nandgate	0:6dee052a3fa4	38
nandgate	0:6dee052a3fa4	39	#ifdef __cplusplus
nandgate	0:6dee052a3fa4	40	extern "C" {
nandgate	0:6dee052a3fa4	41	#endif
nandgate	0:6dee052a3fa4	42
nandgate	0:6dee052a3fa4	43	#ifdef PACK_STRUCT_USE_INCLUDES
nandgate	0:6dee052a3fa4	44	# include "arch/bpstruct.h"
nandgate	0:6dee052a3fa4	45	#endif
nandgate	0:6dee052a3fa4	46	PACK_STRUCT_BEGIN
nandgate	0:6dee052a3fa4	47	struct ip_addr {
nandgate	0:6dee052a3fa4	48	PACK_STRUCT_FIELD(u32_t addr);
nandgate	0:6dee052a3fa4	49	} PACK_STRUCT_STRUCT;
nandgate	0:6dee052a3fa4	50	PACK_STRUCT_END
nandgate	0:6dee052a3fa4	51	#ifdef PACK_STRUCT_USE_INCLUDES
nandgate	0:6dee052a3fa4	52	# include "arch/epstruct.h"
nandgate	0:6dee052a3fa4	53	#endif
nandgate	0:6dee052a3fa4	54
nandgate	0:6dee052a3fa4	55	/*
nandgate	0:6dee052a3fa4	56	* struct ipaddr2 is used in the definition of the ARP packet format in
nandgate	0:6dee052a3fa4	57	* order to support compilers that don't have structure packing.
nandgate	0:6dee052a3fa4	58	*/
nandgate	0:6dee052a3fa4	59	#ifdef PACK_STRUCT_USE_INCLUDES
nandgate	0:6dee052a3fa4	60	# include "arch/bpstruct.h"
nandgate	0:6dee052a3fa4	61	#endif
nandgate	0:6dee052a3fa4	62	PACK_STRUCT_BEGIN
nandgate	0:6dee052a3fa4	63	struct ip_addr2 {
nandgate	0:6dee052a3fa4	64	PACK_STRUCT_FIELD(u16_t addrw[2]);
nandgate	0:6dee052a3fa4	65	} PACK_STRUCT_STRUCT;
nandgate	0:6dee052a3fa4	66	PACK_STRUCT_END
nandgate	0:6dee052a3fa4	67	#ifdef PACK_STRUCT_USE_INCLUDES
nandgate	0:6dee052a3fa4	68	# include "arch/epstruct.h"
nandgate	0:6dee052a3fa4	69	#endif
nandgate	0:6dee052a3fa4	70
nandgate	0:6dee052a3fa4	71	struct netif;
nandgate	0:6dee052a3fa4	72
nandgate	0:6dee052a3fa4	73	extern const struct ip_addr ip_addr_any;
nandgate	0:6dee052a3fa4	74	extern const struct ip_addr ip_addr_broadcast;
nandgate	0:6dee052a3fa4	75
nandgate	0:6dee052a3fa4	76	/** IP_ADDR_ can be used as a fixed IP address
nandgate	0:6dee052a3fa4	77	* for the wildcard and the broadcast address
nandgate	0:6dee052a3fa4	78	*/
nandgate	0:6dee052a3fa4	79	#define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any)
nandgate	0:6dee052a3fa4	80	#define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast)
nandgate	0:6dee052a3fa4	81
nandgate	0:6dee052a3fa4	82	/* Definitions of the bits in an Internet address integer.
nandgate	0:6dee052a3fa4	83
nandgate	0:6dee052a3fa4	84	On subnets, host and network parts are found according to
nandgate	0:6dee052a3fa4	85	the subnet mask, not these masks. */
nandgate	0:6dee052a3fa4	86
nandgate	0:6dee052a3fa4	87	#define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0)
nandgate	0:6dee052a3fa4	88	#define IN_CLASSA_NET 0xff000000
nandgate	0:6dee052a3fa4	89	#define IN_CLASSA_NSHIFT 24
nandgate	0:6dee052a3fa4	90	#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
nandgate	0:6dee052a3fa4	91	#define IN_CLASSA_MAX 128
nandgate	0:6dee052a3fa4	92
nandgate	0:6dee052a3fa4	93	#define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL)
nandgate	0:6dee052a3fa4	94	#define IN_CLASSB_NET 0xffff0000
nandgate	0:6dee052a3fa4	95	#define IN_CLASSB_NSHIFT 16
nandgate	0:6dee052a3fa4	96	#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
nandgate	0:6dee052a3fa4	97	#define IN_CLASSB_MAX 65536
nandgate	0:6dee052a3fa4	98
nandgate	0:6dee052a3fa4	99	#define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL)
nandgate	0:6dee052a3fa4	100	#define IN_CLASSC_NET 0xffffff00
nandgate	0:6dee052a3fa4	101	#define IN_CLASSC_NSHIFT 8
nandgate	0:6dee052a3fa4	102	#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
nandgate	0:6dee052a3fa4	103
nandgate	0:6dee052a3fa4	104	#define IN_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL)
nandgate	0:6dee052a3fa4	105	#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
nandgate	0:6dee052a3fa4	106	#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
nandgate	0:6dee052a3fa4	107	#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
nandgate	0:6dee052a3fa4	108	#define IN_MULTICAST(a) IN_CLASSD(a)
nandgate	0:6dee052a3fa4	109
nandgate	0:6dee052a3fa4	110	#define IN_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
nandgate	0:6dee052a3fa4	111	#define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
nandgate	0:6dee052a3fa4	112
nandgate	0:6dee052a3fa4	113	#define IN_LOOPBACKNET 127 /* official! */
nandgate	0:6dee052a3fa4	114
nandgate	0:6dee052a3fa4	115	#define IP4_ADDR(ipaddr, a,b,c,d) \
nandgate	0:6dee052a3fa4	116	(ipaddr)->addr = htonl(((u32_t)((a) & 0xff) << 24) \| \
nandgate	0:6dee052a3fa4	117	((u32_t)((b) & 0xff) << 16) \| \
nandgate	0:6dee052a3fa4	118	((u32_t)((c) & 0xff) << 8) \| \
nandgate	0:6dee052a3fa4	119	(u32_t)((d) & 0xff))
nandgate	0:6dee052a3fa4	120
nandgate	0:6dee052a3fa4	121	#define ip_addr_set(dest, src) (dest)->addr = \
nandgate	0:6dee052a3fa4	122	((src) == NULL? 0:\
nandgate	0:6dee052a3fa4	123	(src)->addr)
nandgate	0:6dee052a3fa4	124	/**
nandgate	0:6dee052a3fa4	125	* Determine if two address are on the same network.
nandgate	0:6dee052a3fa4	126	*
nandgate	0:6dee052a3fa4	127	* @arg addr1 IP address 1
nandgate	0:6dee052a3fa4	128	* @arg addr2 IP address 2
nandgate	0:6dee052a3fa4	129	* @arg mask network identifier mask
nandgate	0:6dee052a3fa4	130	* @return !0 if the network identifiers of both address match
nandgate	0:6dee052a3fa4	131	*/
nandgate	0:6dee052a3fa4	132	#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
nandgate	0:6dee052a3fa4	133	(mask)->addr) == \
nandgate	0:6dee052a3fa4	134	((addr2)->addr & \
nandgate	0:6dee052a3fa4	135	(mask)->addr))
nandgate	0:6dee052a3fa4	136	#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
nandgate	0:6dee052a3fa4	137
nandgate	0:6dee052a3fa4	138	#define ip_addr_isany(addr1) ((addr1) == NULL \|\| (addr1)->addr == 0)
nandgate	0:6dee052a3fa4	139
nandgate	0:6dee052a3fa4	140	u8_t ip_addr_isbroadcast(struct ip_addr , struct netif );
nandgate	0:6dee052a3fa4	141
nandgate	0:6dee052a3fa4	142	#define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000UL)) == ntohl(0xe0000000UL))
nandgate	0:6dee052a3fa4	143
nandgate	0:6dee052a3fa4	144	#define ip_addr_islinklocal(addr1) (((addr1)->addr & ntohl(0xffff0000UL)) == ntohl(0xa9fe0000UL))
nandgate	0:6dee052a3fa4	145
nandgate	0:6dee052a3fa4	146	#define ip_addr_debug_print(debug, ipaddr) \
nandgate	0:6dee052a3fa4	147	LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \
nandgate	0:6dee052a3fa4	148	ipaddr != NULL ? \
nandgate	0:6dee052a3fa4	149	(u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \
nandgate	0:6dee052a3fa4	150	ipaddr != NULL ? \
nandgate	0:6dee052a3fa4	151	(u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \
nandgate	0:6dee052a3fa4	152	ipaddr != NULL ? \
nandgate	0:6dee052a3fa4	153	(u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \
nandgate	0:6dee052a3fa4	154	ipaddr != NULL ? \
nandgate	0:6dee052a3fa4	155	(u16_t)ntohl((ipaddr)->addr) & 0xff : 0))
nandgate	0:6dee052a3fa4	156
nandgate	0:6dee052a3fa4	157	/* These are cast to u16_t, with the intent that they are often arguments
nandgate	0:6dee052a3fa4	158	* to printf using the U16_F format from cc.h. */
nandgate	0:6dee052a3fa4	159	#define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff)
nandgate	0:6dee052a3fa4	160	#define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff)
nandgate	0:6dee052a3fa4	161	#define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff)
nandgate	0:6dee052a3fa4	162	#define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff)
nandgate	0:6dee052a3fa4	163
nandgate	0:6dee052a3fa4	164	/**
nandgate	0:6dee052a3fa4	165	* Same as inet_ntoa() but takes a struct ip_addr*
nandgate	0:6dee052a3fa4	166	*/
nandgate	0:6dee052a3fa4	167	#define ip_ntoa(addr) ((addr != NULL) ? inet_ntoa(((struct in_addr)(addr))) : "NULL")
nandgate	0:6dee052a3fa4	168
nandgate	0:6dee052a3fa4	169	#ifdef __cplusplus
nandgate	0:6dee052a3fa4	170	}
nandgate	0:6dee052a3fa4	171	#endif
nandgate	0:6dee052a3fa4	172
nandgate	0:6dee052a3fa4	173	#endif /* __LWIP_IP_ADDR_H__ */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	26 Jul 2011
Imports:	159
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	2
Followers:	9

Core/lwIP/include/ipv4/lwip/ip_addr.h@0:6dee052a3fa4, 2011-07-26 (annotated)

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