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.
41 #if !defined(PPP_WITH_IPV6CP)
42 #error "this file should only be included when PPP_WITH_IPV6CP is defined"
43 #endif /* not defined(PPP_WITH_IPV6CP) */
45 #define eui64_iszero(e) (((e).e32[0] | (e).e32[1]) == 0)
46 #define eui64_equals(e, o) (((e).e32[0] == (o).e32[0]) && \
47 ((e).e32[1] == (o).e32[1]))
48 #define eui64_zero(e) (e).e32[0] = (e).e32[1] = 0;
50 #define eui64_copy(s, d) memcpy(&(d), &(s), sizeof(eui64_t))
52 #define eui64_magic(e) do { \
53 (e).e32[0] = magic(); \
54 (e).e32[1] = magic(); \
57 #define eui64_magic_nz(x) do { \
59 } while (eui64_iszero(x))
60 #define eui64_magic_ne(x, y) do { \
62 } while (eui64_equals(x, y))
64 #define eui64_get(ll, cp) do { \
65 eui64_copy((*cp), (ll)); \
66 (cp) += sizeof(eui64_t); \
69 #define eui64_put(ll, cp) do { \
70 eui64_copy((ll), (*cp)); \
71 (cp) += sizeof(eui64_t); \
74 #define eui64_set32(e, l) do { \
76 (e).e32[1] = htonl(l); \
78 #define eui64_setlo32(e, l) eui64_set32(e, l)
80 char *eui64_ntoa(eui64_t); /* Returns ascii representation of id */
82 #endif /* PPP_EUI64_H */