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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [ethernet/] [lwIP/] [include/] [ipv4/] [lwip/] [ip_addr.h] - Blame information for rev 606

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Line No. Rev Author Line
1 606 jeremybenn
/*
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 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without modification,
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 * are permitted provided that the following conditions are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright notice,
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 *    this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 *    this list of conditions and the following disclaimer in the documentation
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 *    and/or other materials provided with the distribution.
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 * 3. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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 * OF SUCH DAMAGE.
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 *
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 * This file is part of the lwIP TCP/IP stack.
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 *
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 * Author: Adam Dunkels <adam@sics.se>
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 *
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 */
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#ifndef __LWIP_IP_ADDR_H__
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#define __LWIP_IP_ADDR_H__
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#include "lwip/arch.h"
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#ifdef PACK_STRUCT_USE_INCLUDES
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#  include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct ip_addr {
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  PACK_STRUCT_FIELD(u32_t addr);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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#  include "arch/epstruct.h"
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#endif
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/*
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 * struct ipaddr2 is used in the definition of the ARP packet format in
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 * order to support compilers that don't have structure packing.
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 */
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#ifdef PACK_STRUCT_USE_INCLUDES
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#  include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct ip_addr2 {
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  PACK_STRUCT_FIELD(u16_t addrw[2]);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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#  include "arch/epstruct.h"
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#endif
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/* For compatibility with BSD code */
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struct in_addr {
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  u32_t s_addr;
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};
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struct netif;
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extern const struct ip_addr ip_addr_any;
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extern const struct ip_addr ip_addr_broadcast;
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/** IP_ADDR_ can be used as a fixed IP address
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 *  for the wildcard and the broadcast address
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 */
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#define IP_ADDR_ANY         ((struct ip_addr *)&ip_addr_any)
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#define IP_ADDR_BROADCAST   ((struct ip_addr *)&ip_addr_broadcast)
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#define INADDR_NONE         ((u32_t)0xffffffff)  /* 255.255.255.255 */
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#define INADDR_LOOPBACK     ((u32_t)0x7f000001)  /* 127.0.0.1 */
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/* Definitions of the bits in an Internet address integer.
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   On subnets, host and network parts are found according to
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   the subnet mask, not these masks.  */
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#define IN_CLASSA(a)        ((((u32_t)(a)) & 0x80000000) == 0)
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#define IN_CLASSA_NET       0xff000000
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#define IN_CLASSA_NSHIFT    24
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#define IN_CLASSA_HOST      (0xffffffff & ~IN_CLASSA_NET)
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#define IN_CLASSA_MAX       128
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#define IN_CLASSB(a)        ((((u32_t)(a)) & 0xc0000000) == 0x80000000)
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#define IN_CLASSB_NET       0xffff0000
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#define IN_CLASSB_NSHIFT    16
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#define IN_CLASSB_HOST      (0xffffffff & ~IN_CLASSB_NET)
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#define IN_CLASSB_MAX       65536
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#define IN_CLASSC(a)        ((((u32_t)(a)) & 0xe0000000) == 0xc0000000)
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#define IN_CLASSC_NET       0xffffff00
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#define IN_CLASSC_NSHIFT    8
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#define IN_CLASSC_HOST      (0xffffffff & ~IN_CLASSC_NET)
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#define IN_CLASSD(a)        (((u32_t)(a) & 0xf0000000) == 0xe0000000)
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#define IN_CLASSD_NET       0xf0000000          /* These ones aren't really */
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#define IN_CLASSD_NSHIFT    28                  /*   net and host fields, but */
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#define IN_CLASSD_HOST      0x0fffffff          /*   routing needn't know. */
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#define IN_MULTICAST(a)     IN_CLASSD(a)
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#define IN_EXPERIMENTAL(a)  (((u32_t)(a) & 0xf0000000) == 0xf0000000)
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#define IN_BADCLASS(a)      (((u32_t)(a) & 0xf0000000) == 0xf0000000)
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#define IN_LOOPBACKNET      127                 /* official! */
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#define IP4_ADDR(ipaddr, a,b,c,d) \
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        (ipaddr)->addr = htonl(((u32_t)((a) & 0xff) << 24) | \
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                               ((u32_t)((b) & 0xff) << 16) | \
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                               ((u32_t)((c) & 0xff) << 8) | \
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                                (u32_t)((d) & 0xff))
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#define ip_addr_set(dest, src) (dest)->addr = \
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                               ((src) == NULL? 0:\
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                               (src)->addr)
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/**
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 * Determine if two address are on the same network.
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 *
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 * @arg addr1 IP address 1
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 * @arg addr2 IP address 2
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 * @arg mask network identifier mask
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 * @return !0 if the network identifiers of both address match
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 */
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#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
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                                              (mask)->addr) == \
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                                             ((addr2)->addr & \
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                                              (mask)->addr))
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#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
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#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0)
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u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *);
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#define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000)) == ntohl(0xe0000000))
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#define ip_addr_debug_print(debug, ipaddr) \
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        LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \
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                ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \
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                ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \
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                ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \
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                ipaddr ? (u16_t)ntohl((ipaddr)->addr) & 0xff : 0))
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/* These are cast to u16_t, with the intent that they are often arguments
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 * to printf using the U16_F format from cc.h. */
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#define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff)
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#define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff)
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#define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff)
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#define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff)
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#endif /* __LWIP_IP_ADDR_H__ */

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