Travis Geiselbrecht | 1d0df69 | 2008-09-01 02:26:09 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without modification, |
| 6 | * are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| 25 | * OF SUCH DAMAGE. |
| 26 | * |
| 27 | * This file is part of the lwIP TCP/IP stack. |
| 28 | * |
| 29 | * Author: Adam Dunkels <adam@sics.se> |
| 30 | * |
| 31 | */ |
| 32 | #ifndef __LWIP_IP_ADDR_H__ |
| 33 | #define __LWIP_IP_ADDR_H__ |
| 34 | |
| 35 | #include "lwip/arch.h" |
| 36 | |
| 37 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 38 | # include "arch/bpstruct.h" |
| 39 | #endif |
| 40 | PACK_STRUCT_BEGIN |
| 41 | struct ip_addr { |
| 42 | PACK_STRUCT_FIELD(u32_t addr); |
| 43 | } PACK_STRUCT_STRUCT; |
| 44 | PACK_STRUCT_END |
| 45 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 46 | # include "arch/epstruct.h" |
| 47 | #endif |
| 48 | |
| 49 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 50 | # include "arch/bpstruct.h" |
| 51 | #endif |
| 52 | PACK_STRUCT_BEGIN |
| 53 | struct ip_addr2 { |
| 54 | PACK_STRUCT_FIELD(u16_t addrw[2]); |
| 55 | } PACK_STRUCT_STRUCT; |
| 56 | PACK_STRUCT_END |
| 57 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 58 | # include "arch/epstruct.h" |
| 59 | #endif |
| 60 | |
| 61 | /* For compatibility with BSD code */ |
| 62 | struct in_addr { |
| 63 | u32_t s_addr; |
| 64 | }; |
| 65 | |
| 66 | struct netif; |
| 67 | |
| 68 | extern const struct ip_addr ip_addr_any; |
| 69 | extern const struct ip_addr ip_addr_broadcast; |
| 70 | |
| 71 | /** IP_ADDR_ can be used as a fixed IP address |
| 72 | * for the wildcard and the broadcast address |
| 73 | */ |
| 74 | #define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any) |
| 75 | #define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast) |
| 76 | |
| 77 | #define INADDR_NONE ((u32_t) 0xffffffff) /* 255.255.255.255 */ |
| 78 | #define INADDR_LOOPBACK ((u32_t) 0x7f000001) /* 127.0.0.1 */ |
| 79 | |
| 80 | /* Definitions of the bits in an Internet address integer. |
| 81 | |
| 82 | On subnets, host and network parts are found according to |
| 83 | the subnet mask, not these masks. */ |
| 84 | |
| 85 | #define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000) == 0) |
| 86 | #define IN_CLASSA_NET 0xff000000 |
| 87 | #define IN_CLASSA_NSHIFT 24 |
| 88 | #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) |
| 89 | #define IN_CLASSA_MAX 128 |
| 90 | |
| 91 | #define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000) == 0x80000000) |
| 92 | #define IN_CLASSB_NET 0xffff0000 |
| 93 | #define IN_CLASSB_NSHIFT 16 |
| 94 | #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) |
| 95 | #define IN_CLASSB_MAX 65536 |
| 96 | |
| 97 | #define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000) == 0xc0000000) |
| 98 | #define IN_CLASSC_NET 0xffffff00 |
| 99 | #define IN_CLASSC_NSHIFT 8 |
| 100 | #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) |
| 101 | |
| 102 | #define IN_CLASSD(a) (((u32_t)(a) & 0xf0000000) == 0xe0000000) |
| 103 | #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ |
| 104 | #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ |
| 105 | #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ |
| 106 | #define IN_MULTICAST(a) IN_CLASSD(a) |
| 107 | |
| 108 | #define IN_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000) == 0xf0000000) |
| 109 | #define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000) == 0xf0000000) |
| 110 | |
| 111 | #define IN_LOOPBACKNET 127 /* official! */ |
| 112 | |
| 113 | |
| 114 | #define IP4_ADDR(ipaddr, a,b,c,d) (ipaddr)->addr = htonl(((u32_t)(a & 0xff) << 24) | ((u32_t)(b & 0xff) << 16) | \ |
| 115 | ((u32_t)(c & 0xff) << 8) | (u32_t)(d & 0xff)) |
| 116 | |
| 117 | #define ip_addr_set(dest, src) (dest)->addr = \ |
| 118 | ((src) == NULL? 0:\ |
| 119 | (src)->addr) |
| 120 | /** |
| 121 | * Determine if two address are on the same network. |
| 122 | * |
| 123 | * @arg addr1 IP address 1 |
| 124 | * @arg addr2 IP address 2 |
| 125 | * @arg mask network identifier mask |
| 126 | * @return !0 if the network identifiers of both address match |
| 127 | */ |
| 128 | #define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \ |
| 129 | (mask)->addr) == \ |
| 130 | ((addr2)->addr & \ |
| 131 | (mask)->addr)) |
| 132 | #define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr) |
| 133 | |
| 134 | #define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0) |
| 135 | |
| 136 | u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *); |
| 137 | |
| 138 | #define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000)) == ntohl(0xe0000000)) |
| 139 | |
| 140 | |
| 141 | #define ip_addr_debug_print(debug, ipaddr) LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \ |
| 142 | ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff:0, \ |
| 143 | ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff:0, \ |
| 144 | ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff:0, \ |
| 145 | ipaddr?(u16_t)ntohl((ipaddr)->addr) & 0xff:0U)) |
| 146 | |
| 147 | /* cast to unsigned int, as it is used as argument to printf functions |
| 148 | * which expect integer arguments. CSi: use cc.h formatters (conversion chars)! */ |
| 149 | #define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff) |
| 150 | #define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff) |
| 151 | #define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff) |
| 152 | #define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff) |
| 153 | #endif /* __LWIP_IP_ADDR_H__ */ |
| 154 | |
| 155 | |
| 156 | |
| 157 | |
| 158 | |
| 159 | |