xref: /nrf52832-nimble/rt-thread/components/net/lwip-1.4.1/src/include/ipv6/lwip/icmp.h (revision 104654410c56c573564690304ae786df310c91fc)
1*10465441SEvalZero /*
2*10465441SEvalZero  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
3*10465441SEvalZero  * All rights reserved.
4*10465441SEvalZero  *
5*10465441SEvalZero  * Redistribution and use in source and binary forms, with or without modification,
6*10465441SEvalZero  * are permitted provided that the following conditions are met:
7*10465441SEvalZero  *
8*10465441SEvalZero  * 1. Redistributions of source code must retain the above copyright notice,
9*10465441SEvalZero  *    this list of conditions and the following disclaimer.
10*10465441SEvalZero  * 2. Redistributions in binary form must reproduce the above copyright notice,
11*10465441SEvalZero  *    this list of conditions and the following disclaimer in the documentation
12*10465441SEvalZero  *    and/or other materials provided with the distribution.
13*10465441SEvalZero  * 3. The name of the author may not be used to endorse or promote products
14*10465441SEvalZero  *    derived from this software without specific prior written permission.
15*10465441SEvalZero  *
16*10465441SEvalZero  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17*10465441SEvalZero  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18*10465441SEvalZero  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19*10465441SEvalZero  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20*10465441SEvalZero  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21*10465441SEvalZero  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22*10465441SEvalZero  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23*10465441SEvalZero  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24*10465441SEvalZero  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
25*10465441SEvalZero  * OF SUCH DAMAGE.
26*10465441SEvalZero  *
27*10465441SEvalZero  * This file is part of the lwIP TCP/IP stack.
28*10465441SEvalZero  *
29*10465441SEvalZero  * Author: Adam Dunkels <[email protected]>
30*10465441SEvalZero  *
31*10465441SEvalZero  */
32*10465441SEvalZero #ifndef __LWIP_ICMP_H__
33*10465441SEvalZero #define __LWIP_ICMP_H__
34*10465441SEvalZero 
35*10465441SEvalZero #include "lwip/opt.h"
36*10465441SEvalZero 
37*10465441SEvalZero #if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
38*10465441SEvalZero 
39*10465441SEvalZero #include "lwip/pbuf.h"
40*10465441SEvalZero #include "lwip/netif.h"
41*10465441SEvalZero 
42*10465441SEvalZero #ifdef __cplusplus
43*10465441SEvalZero extern "C" {
44*10465441SEvalZero #endif
45*10465441SEvalZero 
46*10465441SEvalZero #define ICMP6_DUR  1
47*10465441SEvalZero #define ICMP6_TE   3
48*10465441SEvalZero #define ICMP6_ECHO 128    /* echo */
49*10465441SEvalZero #define ICMP6_ER   129      /* echo reply */
50*10465441SEvalZero 
51*10465441SEvalZero 
52*10465441SEvalZero enum icmp_dur_type {
53*10465441SEvalZero   ICMP_DUR_NET = 0,    /* net unreachable */
54*10465441SEvalZero   ICMP_DUR_HOST = 1,   /* host unreachable */
55*10465441SEvalZero   ICMP_DUR_PROTO = 2,  /* protocol unreachable */
56*10465441SEvalZero   ICMP_DUR_PORT = 3,   /* port unreachable */
57*10465441SEvalZero   ICMP_DUR_FRAG = 4,   /* fragmentation needed and DF set */
58*10465441SEvalZero   ICMP_DUR_SR = 5      /* source route failed */
59*10465441SEvalZero };
60*10465441SEvalZero 
61*10465441SEvalZero enum icmp_te_type {
62*10465441SEvalZero   ICMP_TE_TTL = 0,     /* time to live exceeded in transit */
63*10465441SEvalZero   ICMP_TE_FRAG = 1     /* fragment reassembly time exceeded */
64*10465441SEvalZero };
65*10465441SEvalZero 
66*10465441SEvalZero void icmp_input(struct pbuf *p, struct netif *inp);
67*10465441SEvalZero 
68*10465441SEvalZero void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t);
69*10465441SEvalZero void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t);
70*10465441SEvalZero 
71*10465441SEvalZero struct icmp_echo_hdr {
72*10465441SEvalZero   u8_t type;
73*10465441SEvalZero   u8_t icode;
74*10465441SEvalZero   u16_t chksum;
75*10465441SEvalZero   u16_t id;
76*10465441SEvalZero   u16_t seqno;
77*10465441SEvalZero };
78*10465441SEvalZero 
79*10465441SEvalZero struct icmp_dur_hdr {
80*10465441SEvalZero   u8_t type;
81*10465441SEvalZero   u8_t icode;
82*10465441SEvalZero   u16_t chksum;
83*10465441SEvalZero   u32_t unused;
84*10465441SEvalZero };
85*10465441SEvalZero 
86*10465441SEvalZero struct icmp_te_hdr {
87*10465441SEvalZero   u8_t type;
88*10465441SEvalZero   u8_t icode;
89*10465441SEvalZero   u16_t chksum;
90*10465441SEvalZero   u32_t unused;
91*10465441SEvalZero };
92*10465441SEvalZero 
93*10465441SEvalZero #ifdef __cplusplus
94*10465441SEvalZero }
95*10465441SEvalZero #endif
96*10465441SEvalZero 
97*10465441SEvalZero #endif /* LWIP_ICMP */
98*10465441SEvalZero 
99*10465441SEvalZero #endif /* __LWIP_ICMP_H__ */
100*10465441SEvalZero 
101