| /* |
| * 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" |
| |
| #include "lwip/inet.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #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 |
| |
| /* |
| * 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 |
| 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 |
| |
| 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) |
| |
| /* 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 != NULL ? \ |
| (u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \ |
| ipaddr != NULL ? \ |
| (u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \ |
| ipaddr != NULL ? \ |
| (u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \ |
| ipaddr != NULL ? \ |
| (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) |
| |
| /** |
| * Same as inet_ntoa() but takes a struct ip_addr* |
| */ |
| #define ip_ntoa(addr) ((addr != NULL) ? inet_ntoa(*((struct in_addr*)(addr))) : "NULL") |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __LWIP_IP_ADDR_H__ */ |