diff options
Diffstat (limited to 'lwip/src/include/lwip/icmp.h')
-rw-r--r-- | lwip/src/include/lwip/icmp.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/lwip/src/include/lwip/icmp.h b/lwip/src/include/lwip/icmp.h new file mode 100644 index 0000000..f5a31fd --- /dev/null +++ b/lwip/src/include/lwip/icmp.h @@ -0,0 +1,110 @@ +/** + * @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 */ |