2 * eui64.h - EUI64 routines for IPv6CP.
4 * Copyright (c) 1999 Tommi Komulainen. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
18 * 3. The name(s) of the authors of this software must not be used to
19 * endorse or promote products derived from this software without
20 * prior written permission.
22 * 4. Redistributions of any form whatsoever must retain the following
24 * "This product includes software developed by Tommi Komulainen
25 * <Tommi.Komulainen@iki.fi>".
27 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
28 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
29 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
30 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
31 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
32 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
33 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
43 #error "this file should only be included when INET6 is defined"
44 #endif /* not defined(INET6) */
47 #include <netinet/in.h>
50 uint8_t e8[8]; /* lower 64-bit IPv6 address */
51 uint32_t e32[2]; /* lower 64-bit IPv6 address */
55 * Declare the two below, since in.h only defines them when _KERNEL
56 * is declared - which shouldn't be true when dealing with user-land programs
58 #define s6_addr8 _S6_un._S6_u8
59 #define s6_addr32 _S6_un._S6_u32
61 #else /* else if not defined(SOL2) */
66 * Maybe this should be done by processing struct in6_addr directly...
75 #endif /* defined(SOL2) */
77 #define eui64_iszero(e) (((e).e32[0] | (e).e32[1]) == 0)
78 #define eui64_equals(e, o) (((e).e32[0] == (o).e32[0]) && \
79 ((e).e32[1] == (o).e32[1]))
80 #define eui64_zero(e) (e).e32[0] = (e).e32[1] = 0;
82 #define eui64_copy(s, d) memcpy(&(d), &(s), sizeof(eui64_t))
84 #define eui64_magic(e) do { \
85 (e).e32[0] = magic(); \
86 (e).e32[1] = magic(); \
89 #define eui64_magic_nz(x) do { \
91 } while (eui64_iszero(x))
92 #define eui64_magic_ne(x, y) do { \
94 } while (eui64_equals(x, y))
96 #define eui64_get(ll, cp) do { \
97 eui64_copy((*cp), (ll)); \
98 (cp) += sizeof(eui64_t); \
101 #define eui64_put(ll, cp) do { \
102 eui64_copy((ll), (*cp)); \
103 (cp) += sizeof(eui64_t); \
106 #define eui64_set32(e, l) do { \
108 (e).e32[1] = htonl(l); \
110 #define eui64_setlo32(e, l) eui64_set32(e, l)
112 char *eui64_ntoa(eui64_t); /* Returns ascii representation of id */
114 #endif /* __EUI64_H__ */