4 * IPv6 version of ICMP, as per RFC 4443.
8 * Copyright (c) 2010 Inico Technologies Ltd.
11 * Redistribution and use in source and binary forms, with or without modification,
12 * are permitted provided that the following conditions are met:
14 * 1. Redistributions of source code must retain the above copyright notice,
15 * this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright notice,
17 * this list of conditions and the following disclaimer in the documentation
18 * and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
33 * This file is part of the lwIP TCP/IP stack.
35 * Author: Ivan Delamer <delamer@inicotech.com>
38 * Please coordinate changes and requests with Ivan Delamer
39 * <delamer@inicotech.com>
41 #ifndef LWIP_HDR_ICMP6_H
42 #define LWIP_HDR_ICMP6_H
45 #include "lwip/pbuf.h"
46 #include "lwip/ip6_addr.h"
47 #include "lwip/netif.h"
55 ICMP6_TYPE_DUR = 1, /* Destination unreachable */
56 ICMP6_TYPE_PTB = 2, /* Packet too big */
57 ICMP6_TYPE_TE = 3, /* Time exceeded */
58 ICMP6_TYPE_PP = 4, /* Parameter problem */
59 ICMP6_TYPE_PE1 = 100, /* Private experimentation */
60 ICMP6_TYPE_PE2 = 101, /* Private experimentation */
61 ICMP6_TYPE_RSV_ERR = 127, /* Reserved for expansion of error messages */
63 ICMP6_TYPE_EREQ = 128, /* Echo request */
64 ICMP6_TYPE_EREP = 129, /* Echo reply */
65 ICMP6_TYPE_MLQ = 130, /* Multicast listener query */
66 ICMP6_TYPE_MLR = 131, /* Multicast listener report */
67 ICMP6_TYPE_MLD = 132, /* Multicast listener done */
68 ICMP6_TYPE_RS = 133, /* Router solicitation */
69 ICMP6_TYPE_RA = 134, /* Router advertisement */
70 ICMP6_TYPE_NS = 135, /* Neighbor solicitation */
71 ICMP6_TYPE_NA = 136, /* Neighbor advertisement */
72 ICMP6_TYPE_RD = 137, /* Redirect */
73 ICMP6_TYPE_MRA = 151, /* Multicast router advertisement */
74 ICMP6_TYPE_MRS = 152, /* Multicast router solicitation */
75 ICMP6_TYPE_MRT = 153, /* Multicast router termination */
76 ICMP6_TYPE_PE3 = 200, /* Private experimentation */
77 ICMP6_TYPE_PE4 = 201, /* Private experimentation */
78 ICMP6_TYPE_RSV_INF = 255 /* Reserved for expansion of informational messages */
82 ICMP6_DUR_NO_ROUTE = 0, /* No route to destination */
83 ICMP6_DUR_PROHIBITED = 1, /* Communication with destination administratively prohibited */
84 ICMP6_DUR_SCOPE = 2, /* Beyond scope of source address */
85 ICMP6_DUR_ADDRESS = 3, /* Address unreachable */
86 ICMP6_DUR_PORT = 4, /* Port unreachable */
87 ICMP6_DUR_POLICY = 5, /* Source address failed ingress/egress policy */
88 ICMP6_DUR_REJECT_ROUTE = 6 /* Reject route to destination */
92 ICMP6_TE_HL = 0, /* Hop limit exceeded in transit */
93 ICMP6_TE_FRAG = 1 /* Fragment reassembly time exceeded */
97 ICMP6_PP_FIELD = 0, /* Erroneous header field encountered */
98 ICMP6_PP_HEADER = 1, /* Unrecognized next header type encountered */
99 ICMP6_PP_OPTION = 2 /* Unrecognized IPv6 option encountered */
102 /** This is the standard ICMP6 header. */
103 #ifdef PACK_STRUCT_USE_INCLUDES
104 # include "arch/bpstruct.h"
108 PACK_STRUCT_FLD_8(u8_t type);
109 PACK_STRUCT_FLD_8(u8_t code);
110 PACK_STRUCT_FIELD(u16_t chksum);
111 PACK_STRUCT_FIELD(u32_t data);
112 } PACK_STRUCT_STRUCT;
114 #ifdef PACK_STRUCT_USE_INCLUDES
115 # include "arch/epstruct.h"
118 /** This is the ICMP6 header adapted for echo req/resp. */
119 #ifdef PACK_STRUCT_USE_INCLUDES
120 # include "arch/bpstruct.h"
123 struct icmp6_echo_hdr {
124 PACK_STRUCT_FLD_8(u8_t type);
125 PACK_STRUCT_FLD_8(u8_t code);
126 PACK_STRUCT_FIELD(u16_t chksum);
127 PACK_STRUCT_FIELD(u16_t id);
128 PACK_STRUCT_FIELD(u16_t seqno);
129 } PACK_STRUCT_STRUCT;
131 #ifdef PACK_STRUCT_USE_INCLUDES
132 # include "arch/epstruct.h"
136 #if LWIP_ICMP6 && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
138 void icmp6_input(struct pbuf *p, struct netif *inp);
139 void icmp6_dest_unreach(struct pbuf *p, enum icmp6_dur_code c);
140 void icmp6_packet_too_big(struct pbuf *p, u32_t mtu);
141 void icmp6_time_exceeded(struct pbuf *p, enum icmp6_te_code c);
142 void icmp6_param_problem(struct pbuf *p, enum icmp6_pp_code c, u32_t pointer);
144 #endif /* LWIP_ICMP6 && LWIP_IPV6 */
152 #endif /* LWIP_HDR_ICMP6_H */