source: UsbWattMeter/trunk/lwip-1.4.1/src/include/ipv4/lwip/icmp.h@ 164

Last change on this file since 164 was 164, checked in by coas-nagasima, 6 years ago

TOPPERS/ECNLサンプルアプリ「USB充電器電力計」を追加

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  • Property svn:keywords set to Id
  • Property svn:mime-type set to text/x-chdr
File size: 3.8 KB
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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_ICMP_H__
33#define __LWIP_ICMP_H__
34
35#include "lwip/opt.h"
36#include "lwip/pbuf.h"
37#include "lwip/ip_addr.h"
38#include "lwip/netif.h"
39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44#define ICMP_ER 0 /* echo reply */
45#define ICMP_DUR 3 /* destination unreachable */
46#define ICMP_SQ 4 /* source quench */
47#define ICMP_RD 5 /* redirect */
48#define ICMP_ECHO 8 /* echo */
49#define ICMP_TE 11 /* time exceeded */
50#define ICMP_PP 12 /* parameter problem */
51#define ICMP_TS 13 /* timestamp */
52#define ICMP_TSR 14 /* timestamp reply */
53#define ICMP_IRQ 15 /* information request */
54#define ICMP_IR 16 /* information reply */
55
56enum icmp_dur_type {
57 ICMP_DUR_NET = 0, /* net unreachable */
58 ICMP_DUR_HOST = 1, /* host unreachable */
59 ICMP_DUR_PROTO = 2, /* protocol unreachable */
60 ICMP_DUR_PORT = 3, /* port unreachable */
61 ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */
62 ICMP_DUR_SR = 5 /* source route failed */
63};
64
65enum icmp_te_type {
66 ICMP_TE_TTL = 0, /* time to live exceeded in transit */
67 ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */
68};
69
70#ifdef PACK_STRUCT_USE_INCLUDES
71# include "arch/bpstruct.h"
72#endif
73/** This is the standard ICMP header only that the u32_t data
74 * is splitted to two u16_t like ICMP echo needs it.
75 * This header is also used for other ICMP types that do not
76 * use the data part.
77 */
78PACK_STRUCT_BEGIN
79struct icmp_echo_hdr {
80 PACK_STRUCT_FIELD(u8_t type);
81 PACK_STRUCT_FIELD(u8_t code);
82 PACK_STRUCT_FIELD(u16_t chksum);
83 PACK_STRUCT_FIELD(u16_t id);
84 PACK_STRUCT_FIELD(u16_t seqno);
85} PACK_STRUCT_STRUCT;
86PACK_STRUCT_END
87#ifdef PACK_STRUCT_USE_INCLUDES
88# include "arch/epstruct.h"
89#endif
90
91#define ICMPH_TYPE(hdr) ((hdr)->type)
92#define ICMPH_CODE(hdr) ((hdr)->code)
93
94/** Combines type and code to an u16_t */
95#define ICMPH_TYPE_SET(hdr, t) ((hdr)->type = (t))
96#define ICMPH_CODE_SET(hdr, c) ((hdr)->code = (c))
97
98
99#if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
100
101void icmp_input(struct pbuf *p, struct netif *inp);
102void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t);
103void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t);
104
105#endif /* LWIP_ICMP */
106
107#ifdef __cplusplus
108}
109#endif
110
111#endif /* __LWIP_ICMP_H__ */
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