| /** |
| * @file |
| * ICMP API |
| */ |
| |
| /* |
| * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| * |
| * This file is part of the lwIP TCP/IP stack. |
| * |
| * Author: Adam Dunkels <adam@sics.se> |
| * |
| */ |
| #ifndef LWIP_HDR_ICMP_H |
| #define LWIP_HDR_ICMP_H |
| |
| #include "lwip/opt.h" |
| #include "lwip/pbuf.h" |
| #include "lwip/ip_addr.h" |
| #include "lwip/netif.h" |
| #include "lwip/prot/icmp.h" |
| |
| #if LWIP_IPV6 && LWIP_ICMP6 |
| #include "lwip/icmp6.h" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** ICMP destination unreachable codes */ |
| enum icmp_dur_type { |
| /** net unreachable */ |
| ICMP_DUR_NET = 0, |
| /** host unreachable */ |
| ICMP_DUR_HOST = 1, |
| /** protocol unreachable */ |
| ICMP_DUR_PROTO = 2, |
| /** port unreachable */ |
| ICMP_DUR_PORT = 3, |
| /** fragmentation needed and DF set */ |
| ICMP_DUR_FRAG = 4, |
| /** source route failed */ |
| ICMP_DUR_SR = 5 |
| }; |
| |
| /** ICMP time exceeded codes */ |
| enum icmp_te_type { |
| /** time to live exceeded in transit */ |
| ICMP_TE_TTL = 0, |
| /** fragment reassembly time exceeded */ |
| ICMP_TE_FRAG = 1 |
| }; |
| |
| #if LWIP_IPV4 && LWIP_ICMP /* don't build if not configured for use in lwipopts.h */ |
| |
| void icmp_input(struct pbuf *p, struct netif *inp); |
| void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t); |
| void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t); |
| |
| #endif /* LWIP_IPV4 && LWIP_ICMP */ |
| |
| #if LWIP_IPV4 && LWIP_IPV6 |
| #if LWIP_ICMP && LWIP_ICMP6 |
| #define icmp_port_unreach(isipv6, pbuf) ((isipv6) ? \ |
| icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) : \ |
| icmp_dest_unreach(pbuf, ICMP_DUR_PORT)) |
| #elif LWIP_ICMP |
| #define icmp_port_unreach(isipv6, pbuf) do{ if(!(isipv6)) { icmp_dest_unreach(pbuf, ICMP_DUR_PORT);}}while(0) |
| #elif LWIP_ICMP6 |
| #define icmp_port_unreach(isipv6, pbuf) do{ if(isipv6) { icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT);}}while(0) |
| #else |
| #define icmp_port_unreach(isipv6, pbuf) |
| #endif |
| #elif LWIP_IPV6 && LWIP_ICMP6 |
| #define icmp_port_unreach(isipv6, pbuf) icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) |
| #elif LWIP_IPV4 && LWIP_ICMP |
| #define icmp_port_unreach(isipv6, pbuf) icmp_dest_unreach(pbuf, ICMP_DUR_PORT) |
| #else /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) */ |
| #define icmp_port_unreach(isipv6, pbuf) |
| #endif /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) LWIP_IPV4*/ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* LWIP_HDR_ICMP_H */ |