ip_addr.h

00001 /*
00002  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
00003  * All rights reserved. 
00004  * 
00005  * Redistribution and use in source and binary forms, with or without modification, 
00006  * are permitted provided that the following conditions are met:
00007  *
00008  * 1. Redistributions of source code must retain the above copyright notice,
00009  *    this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright notice,
00011  *    this list of conditions and the following disclaimer in the documentation
00012  *    and/or other materials provided with the distribution.
00013  * 3. The name of the author may not be used to endorse or promote products
00014  *    derived from this software without specific prior written permission. 
00015  *
00016  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
00017  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
00018  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
00019  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
00020  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
00021  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
00022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
00023  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
00024  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
00025  * OF SUCH DAMAGE.
00026  *
00027  * This file is part of the lwIP TCP/IP stack.
00028  * 
00029  * Author: Adam Dunkels <adam@sics.se>
00030  *
00031  */
00032 #ifndef __LWIP_IP_ADDR_H__
00033 #define __LWIP_IP_ADDR_H__
00034 
00035 #include "lwip/opt.h"
00036 
00037 #ifdef __cplusplus
00038 extern "C" {
00039 #endif
00040 
00041 #define IP_ADDR_ANY 0
00042 
00043 #ifdef PACK_STRUCT_USE_INCLUDES
00044 #  include "arch/bpstruct.h"
00045 #endif
00046 PACK_STRUCT_BEGIN
00047  struct ip_addr {
00048   PACK_STRUCT_FIELD(u32_t addr[4]);
00049 } PACK_STRUCT_STRUCT;
00050 PACK_STRUCT_END
00051 #ifdef PACK_STRUCT_USE_INCLUDES
00052 #  include "arch/epstruct.h"
00053 #endif
00054 
00055 /*
00056  * struct ipaddr2 is used in the definition of the ARP packet format in
00057  * order to support compilers that don't have structure packing.
00058  */
00059 #ifdef PACK_STRUCT_USE_INCLUDES
00060 #  include "arch/bpstruct.h"
00061 #endif
00062 PACK_STRUCT_BEGIN
00063 struct ip_addr2 {
00064   PACK_STRUCT_FIELD(u16_t addrw[2]);
00065 } PACK_STRUCT_STRUCT;
00066 PACK_STRUCT_END
00067 #ifdef PACK_STRUCT_USE_INCLUDES
00068 #  include "arch/epstruct.h"
00069 #endif
00070 
00071 #define IP6_ADDR(ipaddr, a,b,c,d,e,f,g,h) do { (ipaddr)->addr[0] = htonl((u32_t)((a & 0xffff) << 16) | (b & 0xffff)); \
00072                                                (ipaddr)->addr[1] = htonl(((c & 0xffff) << 16) | (d & 0xffff)); \
00073                                                (ipaddr)->addr[2] = htonl(((e & 0xffff) << 16) | (f & 0xffff)); \
00074                                                (ipaddr)->addr[3] = htonl(((g & 0xffff) << 16) | (h & 0xffff)); } while(0)
00075 
00076 u8_t ip_addr_netcmp(struct ip_addr *addr1, struct ip_addr *addr2,
00077         struct ip_addr *mask);
00078 u8_t ip_addr_cmp(struct ip_addr *addr1, struct ip_addr *addr2);
00079 void ip_addr_set(struct ip_addr *dest, struct ip_addr *src);
00080 u8_t ip_addr_isany(struct ip_addr *addr);
00081 
00082 #define ip_addr_debug_print(debug, ipaddr) \
00083         LWIP_DEBUGF(debug, ("%"X32_F":%"X32_F":%"X32_F":%"X32_F":%"X32_F":%"X32_F":%"X32_F":%"X32_F"\n", \
00084          (ntohl(ipaddr->addr[0]) >> 16) & 0xffff, \
00085          ntohl(ipaddr->addr[0]) & 0xffff, \
00086          (ntohl(ipaddr->addr[1]) >> 16) & 0xffff, \
00087          ntohl(ipaddr->addr[1]) & 0xffff, \
00088          (ntohl(ipaddr->addr[2]) >> 16) & 0xffff, \
00089          ntohl(ipaddr->addr[2]) & 0xffff, \
00090          (ntohl(ipaddr->addr[3]) >> 16) & 0xffff, \
00091          ntohl(ipaddr->addr[3]) & 0xffff));
00092 
00093 #ifdef __cplusplus
00094 }
00095 #endif
00096 
00097 #endif /* __LWIP_IP_ADDR_H__ */