ip_addr.h
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- /*
- * 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/arch.h"
- #ifdef PACK_STRUCT_USE_INCLUDES
- # include "arch/bpstruct.h"
- #endif
- PACK_STRUCT_BEGIN
- 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
- #ifdef PACK_STRUCT_USE_INCLUDES
- # include "arch/bpstruct.h"
- #endif
- PACK_STRUCT_BEGIN
- 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) 0xffffffff) /* 255.255.255.255 */
- #define INADDR_LOOPBACK ((u32_t) 0x7f000001) /* 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)) & 0x80000000) == 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)) & 0xc0000000) == 0x80000000)
- #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)) & 0xe0000000) == 0xc0000000)
- #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) & 0xf0000000) == 0xe0000000)
- #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) & 0xf0000000) == 0xf0000000)
- #define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000) == 0xf0000000)
- #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(0xf0000000)) == ntohl(0xe0000000))
- #define ip_addr_debug_print(debug, ipaddr) LWIP_DEBUGF(debug, ("%u.%u.%u.%u",
- ipaddr?(unsigned int)(ntohl((ipaddr)->addr) >> 24) & 0xff:0,
- ipaddr?(unsigned int)(ntohl((ipaddr)->addr) >> 16) & 0xff:0,
- ipaddr?(unsigned int)(ntohl((ipaddr)->addr) >> 8) & 0xff:0,
- ipaddr?(unsigned int)ntohl((ipaddr)->addr) & 0xff:0U))
- /* cast to unsigned int, as it is used as argument to printf functions
- * which expect integer arguments */
- #define ip4_addr1(ipaddr) ((unsigned int)(ntohl((ipaddr)->addr) >> 24) & 0xff)
- #define ip4_addr2(ipaddr) ((unsigned int)(ntohl((ipaddr)->addr) >> 16) & 0xff)
- #define ip4_addr3(ipaddr) ((unsigned int)(ntohl((ipaddr)->addr) >> 8) & 0xff)
- #define ip4_addr4(ipaddr) ((unsigned int)(ntohl((ipaddr)->addr)) & 0xff)
- #endif /* __LWIP_IP_ADDR_H__ */