Some quick code to use UDP-only (no TCP) with mBed. Echos received packets and sends packets when a button is pressed
Core/lwIP/include/ipv4/lwip/ip_addr.h@0:a548a085de55, 2010-03-14 (annotated)
- Committer:
- pehrhovey
- Date:
- Sun Mar 14 00:54:12 2010 +0000
- Revision:
- 0:a548a085de55
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
pehrhovey | 0:a548a085de55 | 1 | /* |
pehrhovey | 0:a548a085de55 | 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
pehrhovey | 0:a548a085de55 | 3 | * All rights reserved. |
pehrhovey | 0:a548a085de55 | 4 | * |
pehrhovey | 0:a548a085de55 | 5 | * Redistribution and use in source and binary forms, with or without modification, |
pehrhovey | 0:a548a085de55 | 6 | * are permitted provided that the following conditions are met: |
pehrhovey | 0:a548a085de55 | 7 | * |
pehrhovey | 0:a548a085de55 | 8 | * 1. Redistributions of source code must retain the above copyright notice, |
pehrhovey | 0:a548a085de55 | 9 | * this list of conditions and the following disclaimer. |
pehrhovey | 0:a548a085de55 | 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
pehrhovey | 0:a548a085de55 | 11 | * this list of conditions and the following disclaimer in the documentation |
pehrhovey | 0:a548a085de55 | 12 | * and/or other materials provided with the distribution. |
pehrhovey | 0:a548a085de55 | 13 | * 3. The name of the author may not be used to endorse or promote products |
pehrhovey | 0:a548a085de55 | 14 | * derived from this software without specific prior written permission. |
pehrhovey | 0:a548a085de55 | 15 | * |
pehrhovey | 0:a548a085de55 | 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
pehrhovey | 0:a548a085de55 | 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
pehrhovey | 0:a548a085de55 | 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
pehrhovey | 0:a548a085de55 | 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
pehrhovey | 0:a548a085de55 | 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
pehrhovey | 0:a548a085de55 | 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
pehrhovey | 0:a548a085de55 | 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
pehrhovey | 0:a548a085de55 | 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
pehrhovey | 0:a548a085de55 | 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
pehrhovey | 0:a548a085de55 | 25 | * OF SUCH DAMAGE. |
pehrhovey | 0:a548a085de55 | 26 | * |
pehrhovey | 0:a548a085de55 | 27 | * This file is part of the lwIP TCP/IP stack. |
pehrhovey | 0:a548a085de55 | 28 | * |
pehrhovey | 0:a548a085de55 | 29 | * Author: Adam Dunkels <adam@sics.se> |
pehrhovey | 0:a548a085de55 | 30 | * |
pehrhovey | 0:a548a085de55 | 31 | */ |
pehrhovey | 0:a548a085de55 | 32 | #ifndef __LWIP_IP_ADDR_H__ |
pehrhovey | 0:a548a085de55 | 33 | #define __LWIP_IP_ADDR_H__ |
pehrhovey | 0:a548a085de55 | 34 | |
pehrhovey | 0:a548a085de55 | 35 | #include "lwip/opt.h" |
pehrhovey | 0:a548a085de55 | 36 | |
pehrhovey | 0:a548a085de55 | 37 | #include "lwip/inet.h" |
pehrhovey | 0:a548a085de55 | 38 | |
pehrhovey | 0:a548a085de55 | 39 | #ifdef __cplusplus |
pehrhovey | 0:a548a085de55 | 40 | extern "C" { |
pehrhovey | 0:a548a085de55 | 41 | #endif |
pehrhovey | 0:a548a085de55 | 42 | |
pehrhovey | 0:a548a085de55 | 43 | #ifdef PACK_STRUCT_USE_INCLUDES |
pehrhovey | 0:a548a085de55 | 44 | # include "arch/bpstruct.h" |
pehrhovey | 0:a548a085de55 | 45 | #endif |
pehrhovey | 0:a548a085de55 | 46 | PACK_STRUCT_BEGIN |
pehrhovey | 0:a548a085de55 | 47 | struct ip_addr { |
pehrhovey | 0:a548a085de55 | 48 | PACK_STRUCT_FIELD(u32_t addr); |
pehrhovey | 0:a548a085de55 | 49 | } PACK_STRUCT_STRUCT; |
pehrhovey | 0:a548a085de55 | 50 | PACK_STRUCT_END |
pehrhovey | 0:a548a085de55 | 51 | #ifdef PACK_STRUCT_USE_INCLUDES |
pehrhovey | 0:a548a085de55 | 52 | # include "arch/epstruct.h" |
pehrhovey | 0:a548a085de55 | 53 | #endif |
pehrhovey | 0:a548a085de55 | 54 | |
pehrhovey | 0:a548a085de55 | 55 | /* |
pehrhovey | 0:a548a085de55 | 56 | * struct ipaddr2 is used in the definition of the ARP packet format in |
pehrhovey | 0:a548a085de55 | 57 | * order to support compilers that don't have structure packing. |
pehrhovey | 0:a548a085de55 | 58 | */ |
pehrhovey | 0:a548a085de55 | 59 | #ifdef PACK_STRUCT_USE_INCLUDES |
pehrhovey | 0:a548a085de55 | 60 | # include "arch/bpstruct.h" |
pehrhovey | 0:a548a085de55 | 61 | #endif |
pehrhovey | 0:a548a085de55 | 62 | PACK_STRUCT_BEGIN |
pehrhovey | 0:a548a085de55 | 63 | struct ip_addr2 { |
pehrhovey | 0:a548a085de55 | 64 | PACK_STRUCT_FIELD(u16_t addrw[2]); |
pehrhovey | 0:a548a085de55 | 65 | } PACK_STRUCT_STRUCT; |
pehrhovey | 0:a548a085de55 | 66 | PACK_STRUCT_END |
pehrhovey | 0:a548a085de55 | 67 | #ifdef PACK_STRUCT_USE_INCLUDES |
pehrhovey | 0:a548a085de55 | 68 | # include "arch/epstruct.h" |
pehrhovey | 0:a548a085de55 | 69 | #endif |
pehrhovey | 0:a548a085de55 | 70 | |
pehrhovey | 0:a548a085de55 | 71 | struct netif; |
pehrhovey | 0:a548a085de55 | 72 | |
pehrhovey | 0:a548a085de55 | 73 | extern const struct ip_addr ip_addr_any; |
pehrhovey | 0:a548a085de55 | 74 | extern const struct ip_addr ip_addr_broadcast; |
pehrhovey | 0:a548a085de55 | 75 | |
pehrhovey | 0:a548a085de55 | 76 | /** IP_ADDR_ can be used as a fixed IP address |
pehrhovey | 0:a548a085de55 | 77 | * for the wildcard and the broadcast address |
pehrhovey | 0:a548a085de55 | 78 | */ |
pehrhovey | 0:a548a085de55 | 79 | #define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any) |
pehrhovey | 0:a548a085de55 | 80 | #define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast) |
pehrhovey | 0:a548a085de55 | 81 | |
pehrhovey | 0:a548a085de55 | 82 | /* Definitions of the bits in an Internet address integer. |
pehrhovey | 0:a548a085de55 | 83 | |
pehrhovey | 0:a548a085de55 | 84 | On subnets, host and network parts are found according to |
pehrhovey | 0:a548a085de55 | 85 | the subnet mask, not these masks. */ |
pehrhovey | 0:a548a085de55 | 86 | |
pehrhovey | 0:a548a085de55 | 87 | #define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0) |
pehrhovey | 0:a548a085de55 | 88 | #define IN_CLASSA_NET 0xff000000 |
pehrhovey | 0:a548a085de55 | 89 | #define IN_CLASSA_NSHIFT 24 |
pehrhovey | 0:a548a085de55 | 90 | #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) |
pehrhovey | 0:a548a085de55 | 91 | #define IN_CLASSA_MAX 128 |
pehrhovey | 0:a548a085de55 | 92 | |
pehrhovey | 0:a548a085de55 | 93 | #define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL) |
pehrhovey | 0:a548a085de55 | 94 | #define IN_CLASSB_NET 0xffff0000 |
pehrhovey | 0:a548a085de55 | 95 | #define IN_CLASSB_NSHIFT 16 |
pehrhovey | 0:a548a085de55 | 96 | #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) |
pehrhovey | 0:a548a085de55 | 97 | #define IN_CLASSB_MAX 65536 |
pehrhovey | 0:a548a085de55 | 98 | |
pehrhovey | 0:a548a085de55 | 99 | #define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL) |
pehrhovey | 0:a548a085de55 | 100 | #define IN_CLASSC_NET 0xffffff00 |
pehrhovey | 0:a548a085de55 | 101 | #define IN_CLASSC_NSHIFT 8 |
pehrhovey | 0:a548a085de55 | 102 | #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) |
pehrhovey | 0:a548a085de55 | 103 | |
pehrhovey | 0:a548a085de55 | 104 | #define IN_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL) |
pehrhovey | 0:a548a085de55 | 105 | #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ |
pehrhovey | 0:a548a085de55 | 106 | #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ |
pehrhovey | 0:a548a085de55 | 107 | #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ |
pehrhovey | 0:a548a085de55 | 108 | #define IN_MULTICAST(a) IN_CLASSD(a) |
pehrhovey | 0:a548a085de55 | 109 | |
pehrhovey | 0:a548a085de55 | 110 | #define IN_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL) |
pehrhovey | 0:a548a085de55 | 111 | #define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL) |
pehrhovey | 0:a548a085de55 | 112 | |
pehrhovey | 0:a548a085de55 | 113 | #define IN_LOOPBACKNET 127 /* official! */ |
pehrhovey | 0:a548a085de55 | 114 | |
pehrhovey | 0:a548a085de55 | 115 | #define IP4_ADDR(ipaddr, a,b,c,d) \ |
pehrhovey | 0:a548a085de55 | 116 | (ipaddr)->addr = htonl(((u32_t)((a) & 0xff) << 24) | \ |
pehrhovey | 0:a548a085de55 | 117 | ((u32_t)((b) & 0xff) << 16) | \ |
pehrhovey | 0:a548a085de55 | 118 | ((u32_t)((c) & 0xff) << 8) | \ |
pehrhovey | 0:a548a085de55 | 119 | (u32_t)((d) & 0xff)) |
pehrhovey | 0:a548a085de55 | 120 | |
pehrhovey | 0:a548a085de55 | 121 | #define ip_addr_set(dest, src) (dest)->addr = \ |
pehrhovey | 0:a548a085de55 | 122 | ((src) == NULL? 0:\ |
pehrhovey | 0:a548a085de55 | 123 | (src)->addr) |
pehrhovey | 0:a548a085de55 | 124 | /** |
pehrhovey | 0:a548a085de55 | 125 | * Determine if two address are on the same network. |
pehrhovey | 0:a548a085de55 | 126 | * |
pehrhovey | 0:a548a085de55 | 127 | * @arg addr1 IP address 1 |
pehrhovey | 0:a548a085de55 | 128 | * @arg addr2 IP address 2 |
pehrhovey | 0:a548a085de55 | 129 | * @arg mask network identifier mask |
pehrhovey | 0:a548a085de55 | 130 | * @return !0 if the network identifiers of both address match |
pehrhovey | 0:a548a085de55 | 131 | */ |
pehrhovey | 0:a548a085de55 | 132 | #define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \ |
pehrhovey | 0:a548a085de55 | 133 | (mask)->addr) == \ |
pehrhovey | 0:a548a085de55 | 134 | ((addr2)->addr & \ |
pehrhovey | 0:a548a085de55 | 135 | (mask)->addr)) |
pehrhovey | 0:a548a085de55 | 136 | #define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr) |
pehrhovey | 0:a548a085de55 | 137 | |
pehrhovey | 0:a548a085de55 | 138 | #define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0) |
pehrhovey | 0:a548a085de55 | 139 | |
pehrhovey | 0:a548a085de55 | 140 | u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *); |
pehrhovey | 0:a548a085de55 | 141 | |
pehrhovey | 0:a548a085de55 | 142 | #define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000UL)) == ntohl(0xe0000000UL)) |
pehrhovey | 0:a548a085de55 | 143 | |
pehrhovey | 0:a548a085de55 | 144 | #define ip_addr_islinklocal(addr1) (((addr1)->addr & ntohl(0xffff0000UL)) == ntohl(0xa9fe0000UL)) |
pehrhovey | 0:a548a085de55 | 145 | |
pehrhovey | 0:a548a085de55 | 146 | #define ip_addr_debug_print(debug, ipaddr) \ |
pehrhovey | 0:a548a085de55 | 147 | LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \ |
pehrhovey | 0:a548a085de55 | 148 | ipaddr != NULL ? \ |
pehrhovey | 0:a548a085de55 | 149 | (u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \ |
pehrhovey | 0:a548a085de55 | 150 | ipaddr != NULL ? \ |
pehrhovey | 0:a548a085de55 | 151 | (u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \ |
pehrhovey | 0:a548a085de55 | 152 | ipaddr != NULL ? \ |
pehrhovey | 0:a548a085de55 | 153 | (u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \ |
pehrhovey | 0:a548a085de55 | 154 | ipaddr != NULL ? \ |
pehrhovey | 0:a548a085de55 | 155 | (u16_t)ntohl((ipaddr)->addr) & 0xff : 0)) |
pehrhovey | 0:a548a085de55 | 156 | |
pehrhovey | 0:a548a085de55 | 157 | /* These are cast to u16_t, with the intent that they are often arguments |
pehrhovey | 0:a548a085de55 | 158 | * to printf using the U16_F format from cc.h. */ |
pehrhovey | 0:a548a085de55 | 159 | #define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff) |
pehrhovey | 0:a548a085de55 | 160 | #define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff) |
pehrhovey | 0:a548a085de55 | 161 | #define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff) |
pehrhovey | 0:a548a085de55 | 162 | #define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff) |
pehrhovey | 0:a548a085de55 | 163 | |
pehrhovey | 0:a548a085de55 | 164 | /** |
pehrhovey | 0:a548a085de55 | 165 | * Same as inet_ntoa() but takes a struct ip_addr* |
pehrhovey | 0:a548a085de55 | 166 | */ |
pehrhovey | 0:a548a085de55 | 167 | #define ip_ntoa(addr) ((addr != NULL) ? inet_ntoa(*((struct in_addr*)(addr))) : "NULL") |
pehrhovey | 0:a548a085de55 | 168 | |
pehrhovey | 0:a548a085de55 | 169 | #ifdef __cplusplus |
pehrhovey | 0:a548a085de55 | 170 | } |
pehrhovey | 0:a548a085de55 | 171 | #endif |
pehrhovey | 0:a548a085de55 | 172 | |
pehrhovey | 0:a548a085de55 | 173 | #endif /* __LWIP_IP_ADDR_H__ */ |