7e55dbac33
commit a4a41b9023ef5b3a7c4a1cd82fb167fc63e706df Author: goldsimon <goldsimon@gmx.de> Date: Wed Sep 26 21:50:42 2012 +0200 - This also brings in LwIP's IPv6 codebase Signed-off-by: Tomas Hruby <tom@minix3.org>
153 lines
5.3 KiB
C
153 lines
5.3 KiB
C
/**
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* @file
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*
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* IPv6 version of ICMP, as per RFC 4443.
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*/
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/*
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* Copyright (c) 2010 Inico Technologies Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Ivan Delamer <delamer@inicotech.com>
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*
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*
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* Please coordinate changes and requests with Ivan Delamer
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* <delamer@inicotech.com>
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*/
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#ifndef __LWIP_ICMP6_H__
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#define __LWIP_ICMP6_H__
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#include "lwip/opt.h"
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#include "lwip/pbuf.h"
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#include "lwip/ip6_addr.h"
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#include "lwip/netif.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum icmp6_type {
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ICMP6_TYPE_DUR = 1, /* Destination unreachable */
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ICMP6_TYPE_PTB = 2, /* Packet too big */
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ICMP6_TYPE_TE = 3, /* Time exceeded */
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ICMP6_TYPE_PP = 4, /* Parameter problem */
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ICMP6_TYPE_PE1 = 100, /* Private experimentation */
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ICMP6_TYPE_PE2 = 101, /* Private experimentation */
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ICMP6_TYPE_RSV_ERR = 127, /* Reserved for expansion of error messages */
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ICMP6_TYPE_EREQ = 128, /* Echo request */
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ICMP6_TYPE_EREP = 129, /* Echo reply */
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ICMP6_TYPE_MLQ = 130, /* Multicast listener query */
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ICMP6_TYPE_MLR = 131, /* Multicast listener report */
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ICMP6_TYPE_MLD = 132, /* Multicast listener done */
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ICMP6_TYPE_RS = 133, /* Router solicitation */
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ICMP6_TYPE_RA = 134, /* Router advertisement */
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ICMP6_TYPE_NS = 135, /* Neighbor solicitation */
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ICMP6_TYPE_NA = 136, /* Neighbor advertisement */
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ICMP6_TYPE_RD = 137, /* Redirect */
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ICMP6_TYPE_MRA = 151, /* Multicast router advertisement */
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ICMP6_TYPE_MRS = 152, /* Multicast router solicitation */
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ICMP6_TYPE_MRT = 153, /* Multicast router termination */
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ICMP6_TYPE_PE3 = 200, /* Private experimentation */
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ICMP6_TYPE_PE4 = 201, /* Private experimentation */
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ICMP6_TYPE_RSV_INF = 255 /* Reserved for expansion of informational messages */
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};
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enum icmp6_dur_code {
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ICMP6_DUR_NO_ROUTE = 0, /* No route to destination */
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ICMP6_DUR_PROHIBITED = 1, /* Communication with destination administratively prohibited */
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ICMP6_DUR_SCOPE = 2, /* Beyond scope of source address */
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ICMP6_DUR_ADDRESS = 3, /* Address unreachable */
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ICMP6_DUR_PORT = 4, /* Port unreachable */
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ICMP6_DUR_POLICY = 5, /* Source address failed ingress/egress policy */
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ICMP6_DUR_REJECT_ROUTE = 6 /* Reject route to destination */
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};
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enum icmp6_te_code {
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ICMP6_TE_HL = 0, /* Hop limit exceeded in transit */
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ICMP6_TE_FRAG = 1 /* Fragment reassembly time exceeded */
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};
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enum icmp6_pp_code {
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ICMP6_PP_FIELD = 0, /* Erroneous header field encountered */
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ICMP6_PP_HEADER = 1, /* Unrecognized next header type encountered */
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ICMP6_PP_OPTION = 2 /* Unrecognized IPv6 option encountered */
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};
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/** This is the standard ICMP6 header. */
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct icmp6_hdr {
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PACK_STRUCT_FIELD(u8_t type);
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PACK_STRUCT_FIELD(u8_t code);
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PACK_STRUCT_FIELD(u16_t chksum);
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PACK_STRUCT_FIELD(u32_t data);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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/** This is the ICMP6 header adapted for echo req/resp. */
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct icmp6_echo_hdr {
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PACK_STRUCT_FIELD(u8_t type);
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PACK_STRUCT_FIELD(u8_t code);
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PACK_STRUCT_FIELD(u16_t chksum);
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PACK_STRUCT_FIELD(u16_t id);
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PACK_STRUCT_FIELD(u16_t seqno);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#if LWIP_ICMP6 && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
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void icmp6_input(struct pbuf *p, struct netif *inp);
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void icmp6_dest_unreach(struct pbuf *p, enum icmp6_dur_code c);
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void icmp6_packet_too_big(struct pbuf *p, u32_t mtu);
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void icmp6_time_exceeded(struct pbuf *p, enum icmp6_te_code c);
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void icmp6_param_problem(struct pbuf *p, enum icmp6_pp_code c, u32_t pointer);
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#endif /* LWIP_ICMP6 && LWIP_IPV6 */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __LWIP_ICMP6_H__ */
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