[457] | 1 | /**
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| 2 | * @file
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| 3 | * ICMP API
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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| 8 | * All rights reserved.
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or without modification,
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| 11 | * are permitted provided that the following conditions are met:
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| 12 | *
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| 13 | * 1. Redistributions of source code must retain the above copyright notice,
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| 14 | * this list of conditions and the following disclaimer.
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 16 | * this list of conditions and the following disclaimer in the documentation
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| 17 | * and/or other materials provided with the distribution.
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| 18 | * 3. The name of the author may not be used to endorse or promote products
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| 19 | * derived from this software without specific prior written permission.
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| 20 | *
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 22 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 23 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 24 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 26 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 29 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 30 | * OF SUCH DAMAGE.
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| 31 | *
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| 32 | * This file is part of the lwIP TCP/IP stack.
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| 33 | *
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| 34 | * Author: Adam Dunkels <adam@sics.se>
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| 35 | *
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| 36 | */
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| 37 | #ifndef LWIP_HDR_ICMP_H
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| 38 | #define LWIP_HDR_ICMP_H
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| 39 |
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| 40 | #include "lwip/opt.h"
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| 41 | #include "lwip/pbuf.h"
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| 42 | #include "lwip/ip_addr.h"
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| 43 | #include "lwip/netif.h"
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| 44 | #include "lwip/prot/icmp.h"
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| 45 |
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| 46 | #if LWIP_IPV6 && LWIP_ICMP6
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| 47 | #include "lwip/icmp6.h"
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| 48 | #endif
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| 49 |
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| 50 | #ifdef __cplusplus
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| 51 | extern "C" {
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| 52 | #endif
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| 53 |
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| 54 | /** ICMP destination unreachable codes */
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| 55 | enum icmp_dur_type {
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| 56 | /** net unreachable */
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| 57 | ICMP_DUR_NET = 0,
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| 58 | /** host unreachable */
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| 59 | ICMP_DUR_HOST = 1,
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| 60 | /** protocol unreachable */
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| 61 | ICMP_DUR_PROTO = 2,
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| 62 | /** port unreachable */
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| 63 | ICMP_DUR_PORT = 3,
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| 64 | /** fragmentation needed and DF set */
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| 65 | ICMP_DUR_FRAG = 4,
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| 66 | /** source route failed */
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| 67 | ICMP_DUR_SR = 5
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| 68 | };
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| 69 |
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| 70 | /** ICMP time exceeded codes */
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| 71 | enum icmp_te_type {
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| 72 | /** time to live exceeded in transit */
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| 73 | ICMP_TE_TTL = 0,
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| 74 | /** fragment reassembly time exceeded */
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| 75 | ICMP_TE_FRAG = 1
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| 76 | };
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| 77 |
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| 78 | #if LWIP_IPV4 && LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
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| 79 |
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| 80 | void icmp_input(struct pbuf *p, struct netif *inp);
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| 81 | void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t);
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| 82 | void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t);
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| 83 |
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| 84 | #endif /* LWIP_IPV4 && LWIP_ICMP */
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| 85 |
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| 86 | #if LWIP_IPV4 && LWIP_IPV6
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| 87 | #if LWIP_ICMP && LWIP_ICMP6
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| 88 | #define icmp_port_unreach(isipv6, pbuf) ((isipv6) ? \
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| 89 | icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) : \
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| 90 | icmp_dest_unreach(pbuf, ICMP_DUR_PORT))
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| 91 | #elif LWIP_ICMP
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| 92 | #define icmp_port_unreach(isipv6, pbuf) do{ if(!(isipv6)) { icmp_dest_unreach(pbuf, ICMP_DUR_PORT);}}while(0)
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| 93 | #elif LWIP_ICMP6
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| 94 | #define icmp_port_unreach(isipv6, pbuf) do{ if(isipv6) { icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT);}}while(0)
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| 95 | #else
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| 96 | #define icmp_port_unreach(isipv6, pbuf)
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| 97 | #endif
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| 98 | #elif LWIP_IPV6 && LWIP_ICMP6
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| 99 | #define icmp_port_unreach(isipv6, pbuf) icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT)
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| 100 | #elif LWIP_IPV4 && LWIP_ICMP
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| 101 | #define icmp_port_unreach(isipv6, pbuf) icmp_dest_unreach(pbuf, ICMP_DUR_PORT)
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| 102 | #else /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) */
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| 103 | #define icmp_port_unreach(isipv6, pbuf)
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| 104 | #endif /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) LWIP_IPV4*/
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| 105 |
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| 106 | #ifdef __cplusplus
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| 107 | }
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| 108 | #endif
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| 109 |
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| 110 | #endif /* LWIP_HDR_ICMP_H */
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