mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-27 11:55:06 +00:00
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/*
|
|
eui64.h - EUI64 routines for IPv6CP.
|
|
Copyright (C) 1999 Tommi Komulainen <Tommi.Komulainen@iki.fi>
|
|
|
|
Redistribution and use in source and binary forms are permitted
|
|
provided that the above copyright notice and this paragraph are
|
|
duplicated in all such forms and that any documentation,
|
|
advertising materials, and other materials related to such
|
|
distribution and use acknowledge that the software was developed
|
|
by Tommi Komulainen. The name of the author may not be used
|
|
to endorse or promote products derived from this software without
|
|
specific prior written permission.
|
|
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
|
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
|
WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
|
|
$Id: eui64.h,v 1.3 1999/09/30 19:56:37 masputra Exp $
|
|
*/
|
|
|
|
#ifndef __EUI64_H__
|
|
#define __EUI64_H__
|
|
|
|
#if !defined(INET6)
|
|
#error "this file should only be included when INET6 is defined"
|
|
#endif /* not defined(INET6) */
|
|
|
|
#if defined(SOL2)
|
|
#include <netinet/in.h>
|
|
|
|
typedef union {
|
|
uint8_t e8[8]; /* lower 64-bit IPv6 address */
|
|
uint32_t e32[2]; /* lower 64-bit IPv6 address */
|
|
} eui64_t;
|
|
|
|
/*
|
|
* Declare the two below, since in.h only defines them when _KERNEL
|
|
* is declared - which shouldn't be true when dealing with user-land programs
|
|
*/
|
|
#define s6_addr8 _S6_un._S6_u8
|
|
#define s6_addr32 _S6_un._S6_u32
|
|
|
|
#else /* else if not defined(SOL2) */
|
|
|
|
/*
|
|
* TODO:
|
|
*
|
|
* Maybe this should be done by processing struct in6_addr directly...
|
|
*/
|
|
typedef union
|
|
{
|
|
u_int8_t e8[8];
|
|
u_int16_t e16[4];
|
|
u_int32_t e32[2];
|
|
} eui64_t;
|
|
|
|
#endif /* defined(SOL2) */
|
|
|
|
#define eui64_iszero(e) (((e).e32[0] | (e).e32[1]) == 0)
|
|
#define eui64_equals(e, o) (((e).e32[0] == (o).e32[0]) && \
|
|
((e).e32[1] == (o).e32[1]))
|
|
#define eui64_zero(e) (e).e32[0] = (e).e32[1] = 0;
|
|
|
|
#define eui64_copy(s, d) memcpy(&(d), &(s), sizeof(eui64_t))
|
|
|
|
#define eui64_magic(e) do { \
|
|
(e).e32[0] = magic(); \
|
|
(e).e32[1] = magic(); \
|
|
(e).e8[0] &= ~2; \
|
|
} while (0)
|
|
#define eui64_magic_nz(x) do { \
|
|
eui64_magic(x); \
|
|
} while (eui64_iszero(x))
|
|
#define eui64_magic_ne(x, y) do { \
|
|
eui64_magic(x); \
|
|
} while (eui64_equals(x, y))
|
|
|
|
#define eui64_get(ll, cp) do { \
|
|
eui64_copy((*cp), (ll)); \
|
|
(cp) += sizeof(eui64_t); \
|
|
} while (0)
|
|
|
|
#define eui64_put(ll, cp) do { \
|
|
eui64_copy((ll), (*cp)); \
|
|
(cp) += sizeof(eui64_t); \
|
|
} while (0)
|
|
|
|
#define eui64_set32(e, l) do { \
|
|
(e).e32[0] = 0; \
|
|
(e).e32[1] = htonl(l); \
|
|
} while (0)
|
|
#define eui64_setlo32(e, l) eui64_set32(e, l)
|
|
|
|
char *eui64_ntoa __P((eui64_t)); /* Returns ascii representation of id */
|
|
|
|
#endif /* __EUI64_H__ */
|
|
|