RTEMS 6.1-rc4
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_kernel_in6.h
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1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $
32 */
33
43#if defined(_NETINET6_IN6_H_) && defined(_KERNEL)
44
45/* XXX nonstandard */
46#define s6_addr8 __u6_addr.__u6_addr8
47#define s6_addr16 __u6_addr.__u6_addr16
48#define s6_addr32 __u6_addr.__u6_addr32
49
50/*
51 * Local definition for masks
52 */
53/* XXX nonstandard */
54#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
55#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
56 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
57#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
58 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
59#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
60 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
61#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
62 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
63
64extern const struct sockaddr_in6 sa6_any;
65
66extern const struct in6_addr in6mask0;
67extern const struct in6_addr in6mask32;
68extern const struct in6_addr in6mask64;
69extern const struct in6_addr in6mask96;
70extern const struct in6_addr in6mask128;
71
72/*
73 * Macros started with IPV6_ADDR is KAME local
74 */
75/* XXX nonstandard */
76#if _BYTE_ORDER == _BIG_ENDIAN
77#define IPV6_ADDR_INT32_ONE 1
78#define IPV6_ADDR_INT32_TWO 2
79#define IPV6_ADDR_INT32_MNL 0xff010000
80#define IPV6_ADDR_INT32_MLL 0xff020000
81#define IPV6_ADDR_INT32_SMP 0x0000ffff
82#define IPV6_ADDR_INT16_ULL 0xfe80
83#define IPV6_ADDR_INT16_USL 0xfec0
84#define IPV6_ADDR_INT16_MLL 0xff02
85#elif _BYTE_ORDER == _LITTLE_ENDIAN
86#define IPV6_ADDR_INT32_ONE 0x01000000
87#define IPV6_ADDR_INT32_TWO 0x02000000
88#define IPV6_ADDR_INT32_MNL 0x000001ff
89#define IPV6_ADDR_INT32_MLL 0x000002ff
90#define IPV6_ADDR_INT32_SMP 0xffff0000
91#define IPV6_ADDR_INT16_ULL 0x80fe
92#define IPV6_ADDR_INT16_USL 0xc0fe
93#define IPV6_ADDR_INT16_MLL 0x02ff
94#endif
95
96/* XXX nonstandard */
97#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
98#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
99#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
100#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
101#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
102#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
103
104#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
105
106/* refers nonstandard items */
107#define IN6_IS_ADDR_MC_NODELOCAL(a) \
108 (IN6_IS_ADDR_MULTICAST(a) && \
109 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
110#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
111 (IN6_IS_ADDR_MULTICAST(a) && \
112 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
113#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
114 (IN6_IS_ADDR_MULTICAST(a) && \
115 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
116#define IN6_IS_ADDR_MC_SITELOCAL(a) \
117 (IN6_IS_ADDR_MULTICAST(a) && \
118 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
119#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
120 (IN6_IS_ADDR_MULTICAST(a) && \
121 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
122#define IN6_IS_ADDR_MC_GLOBAL(a) \
123 (IN6_IS_ADDR_MULTICAST(a) && \
124 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
125
126/* nonstandard */
127/*
128 * KAME Scope
129 */
130#define IN6_IS_SCOPE_LINKLOCAL(a) \
131 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
132 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
133#define IN6_IS_SCOPE_EMBED(a) \
134 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
135 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
136 (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
137
138#define IFA6_IS_DEPRECATED(a) \
139 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \
140 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \
141 (a)->ia6_lifetime.ia6t_pltime)
142#define IFA6_IS_INVALID(a) \
143 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \
144 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \
145 (a)->ia6_lifetime.ia6t_vltime)
146
147#define MTAG_ABI_IPV6 1444287380 /* IPv6 ABI */
148#define IPV6_TAG_DIRECT 0 /* direct-dispatch IPv6 */
149
150/* RFC2292 options */
151#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
152#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
153#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
154#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
155#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */
156#define IPV6_2292RTHDR 24 /* bool; routing header */
157#define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
158
159#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
160
161struct cmsghdr;
162struct ip6_hdr;
163
164int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t);
165int in6_cksum(struct mbuf *, u_int8_t, u_int32_t, u_int32_t);
166int in6_cksum_partial(struct mbuf *, u_int8_t, u_int32_t, u_int32_t,
167 u_int32_t);
168int in6_localaddr(struct in6_addr *);
169int in6_localip(struct in6_addr *);
170bool in6_localip_fib(struct in6_addr *, uint16_t);
171int in6_ifhasaddr(struct ifnet *, struct in6_addr *);
172int in6_addrscope(const struct in6_addr *);
173char *ip6_sprintf(char *, const struct in6_addr *);
174struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
175extern void in6_if_up(struct ifnet *);
176struct sockaddr;
177extern u_char ip6_protox[];
178
179void in6_sin6_2_sin(struct sockaddr_in *sin,
180 struct sockaddr_in6 *sin6);
181void in6_sin_2_v4mapsin6(struct sockaddr_in *sin,
182 struct sockaddr_in6 *sin6);
183void in6_sin6_2_sin_in_sock(struct sockaddr *nam);
184void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam);
185extern void addrsel_policy_init(void);
186
187#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
188#define sin6tosa(sin6) ((struct sockaddr *)(sin6))
189#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
190
191#else /* !_NETINET6_IN6_H_ || !_KERNEL */
192#error "must be included via <netinet6/in6.h> in kernel space"
193#endif /* _NETINET6_IN6_H_ && _KERNEL */
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