Rod Coleman / lwip-mbed-2010

Port of LwIP performed by Ralf in 2010. Not recommended for use with recent mbed libraries, but good demos of raw LwIP possible

Dependents:   LwIP_raw_API_serverExample tiny-dtls

Core/lwIP/include/ipv4/lwip/ip_addr.h@0:0791c1fece8e, 2012-09-18 (annotated)

Committer:
RodColeman
Date:
Tue Sep 18 14:41:24 2012 +0000
Revision:
0:0791c1fece8e
[mbed] converted /Eth_TCP_Wei_Server/lwip

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RodColeman 0:0791c1fece8e 1 /*
RodColeman 0:0791c1fece8e 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
RodColeman 0:0791c1fece8e 3 * All rights reserved.
RodColeman 0:0791c1fece8e 4 *
RodColeman 0:0791c1fece8e 5 * Redistribution and use in source and binary forms, with or without modification,
RodColeman 0:0791c1fece8e 6 * are permitted provided that the following conditions are met:
RodColeman 0:0791c1fece8e 7 *
RodColeman 0:0791c1fece8e 8 * 1. Redistributions of source code must retain the above copyright notice,
RodColeman 0:0791c1fece8e 9 * this list of conditions and the following disclaimer.
RodColeman 0:0791c1fece8e 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
RodColeman 0:0791c1fece8e 11 * this list of conditions and the following disclaimer in the documentation
RodColeman 0:0791c1fece8e 12 * and/or other materials provided with the distribution.
RodColeman 0:0791c1fece8e 13 * 3. The name of the author may not be used to endorse or promote products
RodColeman 0:0791c1fece8e 14 * derived from this software without specific prior written permission.
RodColeman 0:0791c1fece8e 15 *
RodColeman 0:0791c1fece8e 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
RodColeman 0:0791c1fece8e 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
RodColeman 0:0791c1fece8e 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
RodColeman 0:0791c1fece8e 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
RodColeman 0:0791c1fece8e 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
RodColeman 0:0791c1fece8e 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
RodColeman 0:0791c1fece8e 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
RodColeman 0:0791c1fece8e 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
RodColeman 0:0791c1fece8e 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
RodColeman 0:0791c1fece8e 25 * OF SUCH DAMAGE.
RodColeman 0:0791c1fece8e 26 *
RodColeman 0:0791c1fece8e 27 * This file is part of the lwIP TCP/IP stack.
RodColeman 0:0791c1fece8e 28 *
RodColeman 0:0791c1fece8e 29 * Author: Adam Dunkels <adam@sics.se>
RodColeman 0:0791c1fece8e 30 *
RodColeman 0:0791c1fece8e 31 */
RodColeman 0:0791c1fece8e 32 #ifndef __LWIP_IP_ADDR_H__
RodColeman 0:0791c1fece8e 33 #define __LWIP_IP_ADDR_H__
RodColeman 0:0791c1fece8e 34
RodColeman 0:0791c1fece8e 35 #include "lwip/opt.h"
RodColeman 0:0791c1fece8e 36
RodColeman 0:0791c1fece8e 37 #include "lwip/inet.h"
RodColeman 0:0791c1fece8e 38
RodColeman 0:0791c1fece8e 39 #ifdef __cplusplus
RodColeman 0:0791c1fece8e 40 extern "C" {
RodColeman 0:0791c1fece8e 41 #endif
RodColeman 0:0791c1fece8e 42
RodColeman 0:0791c1fece8e 43 #ifdef PACK_STRUCT_USE_INCLUDES
RodColeman 0:0791c1fece8e 44 # include "arch/bpstruct.h"
RodColeman 0:0791c1fece8e 45 #endif
RodColeman 0:0791c1fece8e 46 PACK_STRUCT_BEGIN
RodColeman 0:0791c1fece8e 47 struct ip_addr {
RodColeman 0:0791c1fece8e 48 PACK_STRUCT_FIELD(u32_t addr);
RodColeman 0:0791c1fece8e 49 } PACK_STRUCT_STRUCT;
RodColeman 0:0791c1fece8e 50 PACK_STRUCT_END
RodColeman 0:0791c1fece8e 51 #ifdef PACK_STRUCT_USE_INCLUDES
RodColeman 0:0791c1fece8e 52 # include "arch/epstruct.h"
RodColeman 0:0791c1fece8e 53 #endif
RodColeman 0:0791c1fece8e 54
RodColeman 0:0791c1fece8e 55 /*
RodColeman 0:0791c1fece8e 56 * struct ipaddr2 is used in the definition of the ARP packet format in
RodColeman 0:0791c1fece8e 57 * order to support compilers that don't have structure packing.
RodColeman 0:0791c1fece8e 58 */
RodColeman 0:0791c1fece8e 59 #ifdef PACK_STRUCT_USE_INCLUDES
RodColeman 0:0791c1fece8e 60 # include "arch/bpstruct.h"
RodColeman 0:0791c1fece8e 61 #endif
RodColeman 0:0791c1fece8e 62 PACK_STRUCT_BEGIN
RodColeman 0:0791c1fece8e 63 struct ip_addr2 {
RodColeman 0:0791c1fece8e 64 PACK_STRUCT_FIELD(u16_t addrw[2]);
RodColeman 0:0791c1fece8e 65 } PACK_STRUCT_STRUCT;
RodColeman 0:0791c1fece8e 66 PACK_STRUCT_END
RodColeman 0:0791c1fece8e 67 #ifdef PACK_STRUCT_USE_INCLUDES
RodColeman 0:0791c1fece8e 68 # include "arch/epstruct.h"
RodColeman 0:0791c1fece8e 69 #endif
RodColeman 0:0791c1fece8e 70
RodColeman 0:0791c1fece8e 71 struct netif;
RodColeman 0:0791c1fece8e 72
RodColeman 0:0791c1fece8e 73 extern const struct ip_addr ip_addr_any;
RodColeman 0:0791c1fece8e 74 extern const struct ip_addr ip_addr_broadcast;
RodColeman 0:0791c1fece8e 75
RodColeman 0:0791c1fece8e 76 /** IP_ADDR_ can be used as a fixed IP address
RodColeman 0:0791c1fece8e 77 * for the wildcard and the broadcast address
RodColeman 0:0791c1fece8e 78 */
RodColeman 0:0791c1fece8e 79 #define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any)
RodColeman 0:0791c1fece8e 80 #define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast)
RodColeman 0:0791c1fece8e 81
RodColeman 0:0791c1fece8e 82 /* Definitions of the bits in an Internet address integer.
RodColeman 0:0791c1fece8e 83
RodColeman 0:0791c1fece8e 84 On subnets, host and network parts are found according to
RodColeman 0:0791c1fece8e 85 the subnet mask, not these masks. */
RodColeman 0:0791c1fece8e 86
RodColeman 0:0791c1fece8e 87 #define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0)
RodColeman 0:0791c1fece8e 88 #define IN_CLASSA_NET 0xff000000
RodColeman 0:0791c1fece8e 89 #define IN_CLASSA_NSHIFT 24
RodColeman 0:0791c1fece8e 90 #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
RodColeman 0:0791c1fece8e 91 #define IN_CLASSA_MAX 128
RodColeman 0:0791c1fece8e 92
RodColeman 0:0791c1fece8e 93 #define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL)
RodColeman 0:0791c1fece8e 94 #define IN_CLASSB_NET 0xffff0000
RodColeman 0:0791c1fece8e 95 #define IN_CLASSB_NSHIFT 16
RodColeman 0:0791c1fece8e 96 #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
RodColeman 0:0791c1fece8e 97 #define IN_CLASSB_MAX 65536
RodColeman 0:0791c1fece8e 98
RodColeman 0:0791c1fece8e 99 #define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL)
RodColeman 0:0791c1fece8e 100 #define IN_CLASSC_NET 0xffffff00
RodColeman 0:0791c1fece8e 101 #define IN_CLASSC_NSHIFT 8
RodColeman 0:0791c1fece8e 102 #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
RodColeman 0:0791c1fece8e 103
RodColeman 0:0791c1fece8e 104 #define IN_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL)
RodColeman 0:0791c1fece8e 105 #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
RodColeman 0:0791c1fece8e 106 #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
RodColeman 0:0791c1fece8e 107 #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
RodColeman 0:0791c1fece8e 108 #define IN_MULTICAST(a) IN_CLASSD(a)
RodColeman 0:0791c1fece8e 109
RodColeman 0:0791c1fece8e 110 #define IN_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
RodColeman 0:0791c1fece8e 111 #define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
RodColeman 0:0791c1fece8e 112
RodColeman 0:0791c1fece8e 113 #define IN_LOOPBACKNET 127 /* official! */
RodColeman 0:0791c1fece8e 114
RodColeman 0:0791c1fece8e 115 #define IP4_ADDR(ipaddr, a,b,c,d) \
RodColeman 0:0791c1fece8e 116 (ipaddr)->addr = htonl(((u32_t)((a) & 0xff) << 24) | \
RodColeman 0:0791c1fece8e 117 ((u32_t)((b) & 0xff) << 16) | \
RodColeman 0:0791c1fece8e 118 ((u32_t)((c) & 0xff) << 8) | \
RodColeman 0:0791c1fece8e 119 (u32_t)((d) & 0xff))
RodColeman 0:0791c1fece8e 120
RodColeman 0:0791c1fece8e 121 #define ip_addr_set(dest, src) (dest)->addr = \
RodColeman 0:0791c1fece8e 122 ((src) == NULL? 0:\
RodColeman 0:0791c1fece8e 123 (src)->addr)
RodColeman 0:0791c1fece8e 124 /**
RodColeman 0:0791c1fece8e 125 * Determine if two address are on the same network.
RodColeman 0:0791c1fece8e 126 *
RodColeman 0:0791c1fece8e 127 * @arg addr1 IP address 1
RodColeman 0:0791c1fece8e 128 * @arg addr2 IP address 2
RodColeman 0:0791c1fece8e 129 * @arg mask network identifier mask
RodColeman 0:0791c1fece8e 130 * @return !0 if the network identifiers of both address match
RodColeman 0:0791c1fece8e 131 */
RodColeman 0:0791c1fece8e 132 #define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
RodColeman 0:0791c1fece8e 133 (mask)->addr) == \
RodColeman 0:0791c1fece8e 134 ((addr2)->addr & \
RodColeman 0:0791c1fece8e 135 (mask)->addr))
RodColeman 0:0791c1fece8e 136 #define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
RodColeman 0:0791c1fece8e 137
RodColeman 0:0791c1fece8e 138 #define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0)
RodColeman 0:0791c1fece8e 139
RodColeman 0:0791c1fece8e 140 u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *);
RodColeman 0:0791c1fece8e 141
RodColeman 0:0791c1fece8e 142 #define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000UL)) == ntohl(0xe0000000UL))
RodColeman 0:0791c1fece8e 143
RodColeman 0:0791c1fece8e 144 #define ip_addr_islinklocal(addr1) (((addr1)->addr & ntohl(0xffff0000UL)) == ntohl(0xa9fe0000UL))
RodColeman 0:0791c1fece8e 145
RodColeman 0:0791c1fece8e 146 #define ip_addr_debug_print(debug, ipaddr) \
RodColeman 0:0791c1fece8e 147 LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \
RodColeman 0:0791c1fece8e 148 ipaddr != NULL ? \
RodColeman 0:0791c1fece8e 149 (u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \
RodColeman 0:0791c1fece8e 150 ipaddr != NULL ? \
RodColeman 0:0791c1fece8e 151 (u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \
RodColeman 0:0791c1fece8e 152 ipaddr != NULL ? \
RodColeman 0:0791c1fece8e 153 (u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \
RodColeman 0:0791c1fece8e 154 ipaddr != NULL ? \
RodColeman 0:0791c1fece8e 155 (u16_t)ntohl((ipaddr)->addr) & 0xff : 0))
RodColeman 0:0791c1fece8e 156
RodColeman 0:0791c1fece8e 157 /* These are cast to u16_t, with the intent that they are often arguments
RodColeman 0:0791c1fece8e 158 * to printf using the U16_F format from cc.h. */
RodColeman 0:0791c1fece8e 159 #define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff)
RodColeman 0:0791c1fece8e 160 #define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff)
RodColeman 0:0791c1fece8e 161 #define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff)
RodColeman 0:0791c1fece8e 162 #define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff)
RodColeman 0:0791c1fece8e 163
RodColeman 0:0791c1fece8e 164 /**
RodColeman 0:0791c1fece8e 165 * Same as inet_ntoa() but takes a struct ip_addr*
RodColeman 0:0791c1fece8e 166 */
RodColeman 0:0791c1fece8e 167 #define ip_ntoa(addr) ((addr != NULL) ? inet_ntoa(*((struct in_addr*)(addr))) : "NULL")
RodColeman 0:0791c1fece8e 168
RodColeman 0:0791c1fece8e 169 #ifdef __cplusplus
RodColeman 0:0791c1fece8e 170 }
RodColeman 0:0791c1fece8e 171 #endif
RodColeman 0:0791c1fece8e 172
RodColeman 0:0791c1fece8e 173 #endif /* __LWIP_IP_ADDR_H__ */