source: azure_iot_hub_f767zi/trunk/asp_baseplatform/lwip/lwip-2.1.2/src/include/lwip/prot/nd6.h@ 457

Last change on this file since 457 was 457, checked in by coas-nagasima, 4 years ago

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1/**
2 * @file
3 * ND6 protocol definitions
4 */
5
6/*
7 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without modification,
11 * are permitted provided that the following conditions are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
30 * OF SUCH DAMAGE.
31 *
32 * This file is part of the lwIP TCP/IP stack.
33 *
34 * Author: Adam Dunkels <adam@sics.se>
35 *
36 */
37#ifndef LWIP_HDR_PROT_ND6_H
38#define LWIP_HDR_PROT_ND6_H
39
40#include "lwip/arch.h"
41#include "lwip/ip6_addr.h"
42#include "lwip/prot/ip6.h"
43
44#ifdef __cplusplus
45extern "C" {
46#endif
47
48/** Neighbor solicitation message header. */
49#ifdef PACK_STRUCT_USE_INCLUDES
50# include "arch/bpstruct.h"
51#endif
52PACK_STRUCT_BEGIN
53struct ns_header {
54 PACK_STRUCT_FLD_8(u8_t type);
55 PACK_STRUCT_FLD_8(u8_t code);
56 PACK_STRUCT_FIELD(u16_t chksum);
57 PACK_STRUCT_FIELD(u32_t reserved);
58 PACK_STRUCT_FLD_S(ip6_addr_p_t target_address);
59 /* Options follow. */
60} PACK_STRUCT_STRUCT;
61PACK_STRUCT_END
62#ifdef PACK_STRUCT_USE_INCLUDES
63# include "arch/epstruct.h"
64#endif
65
66/** Neighbor advertisement message header. */
67#ifdef PACK_STRUCT_USE_INCLUDES
68# include "arch/bpstruct.h"
69#endif
70PACK_STRUCT_BEGIN
71struct na_header {
72 PACK_STRUCT_FLD_8(u8_t type);
73 PACK_STRUCT_FLD_8(u8_t code);
74 PACK_STRUCT_FIELD(u16_t chksum);
75 PACK_STRUCT_FLD_8(u8_t flags);
76 PACK_STRUCT_FLD_8(u8_t reserved[3]);
77 PACK_STRUCT_FLD_S(ip6_addr_p_t target_address);
78 /* Options follow. */
79} PACK_STRUCT_STRUCT;
80PACK_STRUCT_END
81#ifdef PACK_STRUCT_USE_INCLUDES
82# include "arch/epstruct.h"
83#endif
84#define ND6_FLAG_ROUTER (0x80)
85#define ND6_FLAG_SOLICITED (0x40)
86#define ND6_FLAG_OVERRIDE (0x20)
87
88/** Router solicitation message header. */
89#ifdef PACK_STRUCT_USE_INCLUDES
90# include "arch/bpstruct.h"
91#endif
92PACK_STRUCT_BEGIN
93struct rs_header {
94 PACK_STRUCT_FLD_8(u8_t type);
95 PACK_STRUCT_FLD_8(u8_t code);
96 PACK_STRUCT_FIELD(u16_t chksum);
97 PACK_STRUCT_FIELD(u32_t reserved);
98 /* Options follow. */
99} PACK_STRUCT_STRUCT;
100PACK_STRUCT_END
101#ifdef PACK_STRUCT_USE_INCLUDES
102# include "arch/epstruct.h"
103#endif
104
105/** Router advertisement message header. */
106#define ND6_RA_FLAG_MANAGED_ADDR_CONFIG (0x80)
107#define ND6_RA_FLAG_OTHER_CONFIG (0x40)
108#define ND6_RA_FLAG_HOME_AGENT (0x20)
109#define ND6_RA_PREFERENCE_MASK (0x18)
110#define ND6_RA_PREFERENCE_HIGH (0x08)
111#define ND6_RA_PREFERENCE_MEDIUM (0x00)
112#define ND6_RA_PREFERENCE_LOW (0x18)
113#define ND6_RA_PREFERENCE_DISABLED (0x10)
114#ifdef PACK_STRUCT_USE_INCLUDES
115# include "arch/bpstruct.h"
116#endif
117PACK_STRUCT_BEGIN
118struct ra_header {
119 PACK_STRUCT_FLD_8(u8_t type);
120 PACK_STRUCT_FLD_8(u8_t code);
121 PACK_STRUCT_FIELD(u16_t chksum);
122 PACK_STRUCT_FLD_8(u8_t current_hop_limit);
123 PACK_STRUCT_FLD_8(u8_t flags);
124 PACK_STRUCT_FIELD(u16_t router_lifetime);
125 PACK_STRUCT_FIELD(u32_t reachable_time);
126 PACK_STRUCT_FIELD(u32_t retrans_timer);
127 /* Options follow. */
128} PACK_STRUCT_STRUCT;
129PACK_STRUCT_END
130#ifdef PACK_STRUCT_USE_INCLUDES
131# include "arch/epstruct.h"
132#endif
133
134/** Redirect message header. */
135#ifdef PACK_STRUCT_USE_INCLUDES
136# include "arch/bpstruct.h"
137#endif
138PACK_STRUCT_BEGIN
139struct redirect_header {
140 PACK_STRUCT_FLD_8(u8_t type);
141 PACK_STRUCT_FLD_8(u8_t code);
142 PACK_STRUCT_FIELD(u16_t chksum);
143 PACK_STRUCT_FIELD(u32_t reserved);
144 PACK_STRUCT_FLD_S(ip6_addr_p_t target_address);
145 PACK_STRUCT_FLD_S(ip6_addr_p_t destination_address);
146 /* Options follow. */
147} PACK_STRUCT_STRUCT;
148PACK_STRUCT_END
149#ifdef PACK_STRUCT_USE_INCLUDES
150# include "arch/epstruct.h"
151#endif
152
153/** Link-layer address option. */
154#define ND6_OPTION_TYPE_SOURCE_LLADDR (0x01)
155#define ND6_OPTION_TYPE_TARGET_LLADDR (0x02)
156#ifdef PACK_STRUCT_USE_INCLUDES
157# include "arch/bpstruct.h"
158#endif
159PACK_STRUCT_BEGIN
160struct lladdr_option {
161 PACK_STRUCT_FLD_8(u8_t type);
162 PACK_STRUCT_FLD_8(u8_t length);
163 PACK_STRUCT_FLD_8(u8_t addr[NETIF_MAX_HWADDR_LEN]);
164} PACK_STRUCT_STRUCT;
165PACK_STRUCT_END
166#ifdef PACK_STRUCT_USE_INCLUDES
167# include "arch/epstruct.h"
168#endif
169
170/** Prefix information option. */
171#define ND6_OPTION_TYPE_PREFIX_INFO (0x03)
172#define ND6_PREFIX_FLAG_ON_LINK (0x80)
173#define ND6_PREFIX_FLAG_AUTONOMOUS (0x40)
174#define ND6_PREFIX_FLAG_ROUTER_ADDRESS (0x20)
175#define ND6_PREFIX_FLAG_SITE_PREFIX (0x10)
176#ifdef PACK_STRUCT_USE_INCLUDES
177# include "arch/bpstruct.h"
178#endif
179PACK_STRUCT_BEGIN
180struct prefix_option {
181 PACK_STRUCT_FLD_8(u8_t type);
182 PACK_STRUCT_FLD_8(u8_t length);
183 PACK_STRUCT_FLD_8(u8_t prefix_length);
184 PACK_STRUCT_FLD_8(u8_t flags);
185 PACK_STRUCT_FIELD(u32_t valid_lifetime);
186 PACK_STRUCT_FIELD(u32_t preferred_lifetime);
187 PACK_STRUCT_FLD_8(u8_t reserved2[3]);
188 PACK_STRUCT_FLD_8(u8_t site_prefix_length);
189 PACK_STRUCT_FLD_S(ip6_addr_p_t prefix);
190} PACK_STRUCT_STRUCT;
191PACK_STRUCT_END
192#ifdef PACK_STRUCT_USE_INCLUDES
193# include "arch/epstruct.h"
194#endif
195
196/** Redirected header option. */
197#define ND6_OPTION_TYPE_REDIR_HDR (0x04)
198#ifdef PACK_STRUCT_USE_INCLUDES
199# include "arch/bpstruct.h"
200#endif
201PACK_STRUCT_BEGIN
202struct redirected_header_option {
203 PACK_STRUCT_FLD_8(u8_t type);
204 PACK_STRUCT_FLD_8(u8_t length);
205 PACK_STRUCT_FLD_8(u8_t reserved[6]);
206 /* Portion of redirected packet follows. */
207 /* PACK_STRUCT_FLD_8(u8_t redirected[8]); */
208} PACK_STRUCT_STRUCT;
209PACK_STRUCT_END
210#ifdef PACK_STRUCT_USE_INCLUDES
211# include "arch/epstruct.h"
212#endif
213
214/** MTU option. */
215#define ND6_OPTION_TYPE_MTU (0x05)
216#ifdef PACK_STRUCT_USE_INCLUDES
217# include "arch/bpstruct.h"
218#endif
219PACK_STRUCT_BEGIN
220struct mtu_option {
221 PACK_STRUCT_FLD_8(u8_t type);
222 PACK_STRUCT_FLD_8(u8_t length);
223 PACK_STRUCT_FIELD(u16_t reserved);
224 PACK_STRUCT_FIELD(u32_t mtu);
225} PACK_STRUCT_STRUCT;
226PACK_STRUCT_END
227#ifdef PACK_STRUCT_USE_INCLUDES
228# include "arch/epstruct.h"
229#endif
230
231/** Route information option. */
232#define ND6_OPTION_TYPE_ROUTE_INFO (24)
233#ifdef PACK_STRUCT_USE_INCLUDES
234# include "arch/bpstruct.h"
235#endif
236PACK_STRUCT_BEGIN
237struct route_option {
238 PACK_STRUCT_FLD_8(u8_t type);
239 PACK_STRUCT_FLD_8(u8_t length);
240 PACK_STRUCT_FLD_8(u8_t prefix_length);
241 PACK_STRUCT_FLD_8(u8_t preference);
242 PACK_STRUCT_FIELD(u32_t route_lifetime);
243 PACK_STRUCT_FLD_S(ip6_addr_p_t prefix);
244} PACK_STRUCT_STRUCT;
245PACK_STRUCT_END
246#ifdef PACK_STRUCT_USE_INCLUDES
247# include "arch/epstruct.h"
248#endif
249
250/** Recursive DNS Server Option. */
251#define ND6_OPTION_TYPE_RDNSS (25)
252#ifdef PACK_STRUCT_USE_INCLUDES
253# include "arch/bpstruct.h"
254#endif
255PACK_STRUCT_BEGIN
256struct rdnss_option {
257 PACK_STRUCT_FLD_8(u8_t type);
258 PACK_STRUCT_FLD_8(u8_t length);
259 PACK_STRUCT_FIELD(u16_t reserved);
260 PACK_STRUCT_FIELD(u32_t lifetime);
261 PACK_STRUCT_FLD_S(ip6_addr_p_t rdnss_address[1]);
262} PACK_STRUCT_STRUCT;
263PACK_STRUCT_END
264#ifdef PACK_STRUCT_USE_INCLUDES
265# include "arch/epstruct.h"
266#endif
267
268#define SIZEOF_RDNSS_OPTION_BASE 8 /* size without addresses */
269
270#ifdef __cplusplus
271}
272#endif
273
274#endif /* LWIP_HDR_PROT_ND6_H */
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