source: rtems/cpukit/include/machine/_kernel_in6.h @ 388dd97

Last change on this file since 388dd97 was 388dd97, checked in by Gleb Smirnoff <glebius@…>, on 11/12/21 at 16:59:42

Add in_localip_fib(), in6_localip_fib().

Check if given address/FIB exists locally.

Reviewed by: melifaro
Differential revision: ​https://reviews.freebsd.org/D32913
  • Property mode set to 100644
File size: 7.1 KB
Line 
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
34/**
35 * @file
36 *
37 * @brief This header file provides IPv6 definitions for the kernel space
38 *   (_KERNEL is defined before including <netinet6/in6.h>).
39 */
40
41#if !defined(_NETINET6_IN6_H_) || !defined(_KERNEL)
42#error "must be included via <netinet6/in6.h> in kernel space"
43#endif
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))
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