| 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_ICMP_H__ |
| 33 | #define __LWIP_ICMP_H__ |
| 34 | |
| 35 | #include "lwip/arch.h" |
| 36 | |
| 37 | #include "lwip/opt.h" |
| 38 | #include "lwip/pbuf.h" |
| 39 | |
| 40 | #include "lwip/netif.h" |
| 41 | |
| 42 | #define ICMP6_DUR 1 |
| 43 | #define ICMP6_TE 3 |
| 44 | #define ICMP6_ECHO 128 /* echo */ |
| 45 | #define ICMP6_ER 129 /* echo reply */ |
| 46 | |
| 47 | |
| 48 | enum icmp_dur_type { |
| 49 | ICMP_DUR_NET = 0, /* net unreachable */ |
| 50 | ICMP_DUR_HOST = 1, /* host unreachable */ |
| 51 | ICMP_DUR_PROTO = 2, /* protocol unreachable */ |
| 52 | ICMP_DUR_PORT = 3, /* port unreachable */ |
| 53 | ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */ |
| 54 | ICMP_DUR_SR = 5 /* source route failed */ |
| 55 | }; |
| 56 | |
| 57 | enum icmp_te_type { |
| 58 | ICMP_TE_TTL = 0, /* time to live exceeded in transit */ |
| 59 | ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */ |
| 60 | }; |
| 61 | |
| 62 | void icmp_input(struct pbuf *p, struct netif *inp); |
| 63 | |
| 64 | void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t); |
| 65 | void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t); |
| 66 | |
| 67 | struct icmp_echo_hdr { |
| 68 | u8_t type; |
| 69 | u8_t icode; |
| 70 | u16_t chksum; |
| 71 | u16_t id; |
| 72 | u16_t seqno; |
| 73 | }; |
| 74 | |
| 75 | struct icmp_dur_hdr { |
| 76 | u8_t type; |
| 77 | u8_t icode; |
| 78 | u16_t chksum; |
| 79 | u32_t unused; |
| 80 | }; |
| 81 | |
| 82 | struct icmp_te_hdr { |
| 83 | u8_t type; |
| 84 | u8_t icode; |
| 85 | u16_t chksum; |
| 86 | u32_t unused; |
| 87 | }; |
| 88 | |
| 89 | #endif /* __LWIP_ICMP_H__ */ |
| 90 | |