18ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project/* 28ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * eui64.h - EUI64 routines for IPv6CP. 38ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 48ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * Copyright (c) 1999 Tommi Komulainen. All rights reserved. 58ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 68ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * Redistribution and use in source and binary forms, with or without 78ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * modification, are permitted provided that the following conditions 88ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * are met: 98ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 108ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 118ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * notice, this list of conditions and the following disclaimer. 128ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 138ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 148ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * notice, this list of conditions and the following disclaimer in 158ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * the documentation and/or other materials provided with the 168ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * distribution. 178ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 188ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 3. The name(s) of the authors of this software must not be used to 198ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * endorse or promote products derived from this software without 208ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * prior written permission. 218ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 228ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 4. Redistributions of any form whatsoever must retain the following 238ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * acknowledgment: 248ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * "This product includes software developed by Tommi Komulainen 258ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * <Tommi.Komulainen@iki.fi>". 268ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 278ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO 288ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 298ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY 308ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 318ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 328ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 338ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 348ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 358ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * $Id: eui64.h,v 1.6 2002/12/04 23:03:32 paulus Exp $ 368ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project*/ 378ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 388ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#ifndef __EUI64_H__ 398ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define __EUI64_H__ 408ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 418ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#if !defined(INET6) 428ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#error "this file should only be included when INET6 is defined" 438ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#endif /* not defined(INET6) */ 448ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 458ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#if defined(SOL2) 468ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#include <netinet/in.h> 478ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 488ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Projecttypedef union { 498ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project uint8_t e8[8]; /* lower 64-bit IPv6 address */ 508ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project uint32_t e32[2]; /* lower 64-bit IPv6 address */ 518ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project} eui64_t; 528ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 538ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project/* 548ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * Declare the two below, since in.h only defines them when _KERNEL 558ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * is declared - which shouldn't be true when dealing with user-land programs 568ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project */ 578ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define s6_addr8 _S6_un._S6_u8 588ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define s6_addr32 _S6_un._S6_u32 598ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 608ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#else /* else if not defined(SOL2) */ 618ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 628ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project/* 638ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * TODO: 648ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * 658ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project * Maybe this should be done by processing struct in6_addr directly... 668ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project */ 678ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Projecttypedef union 688ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project{ 698ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project u_int8_t e8[8]; 708ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project u_int16_t e16[4]; 718ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project u_int32_t e32[2]; 728ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project} eui64_t; 738ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 748ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#endif /* defined(SOL2) */ 758ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 768ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_iszero(e) (((e).e32[0] | (e).e32[1]) == 0) 778ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_equals(e, o) (((e).e32[0] == (o).e32[0]) && \ 788ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project ((e).e32[1] == (o).e32[1])) 798ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_zero(e) (e).e32[0] = (e).e32[1] = 0; 808ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 818ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_copy(s, d) memcpy(&(d), &(s), sizeof(eui64_t)) 828ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 838ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_magic(e) do { \ 848ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project (e).e32[0] = magic(); \ 858ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project (e).e32[1] = magic(); \ 868ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project (e).e8[0] &= ~2; \ 878ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project } while (0) 888ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_magic_nz(x) do { \ 898ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project eui64_magic(x); \ 908ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project } while (eui64_iszero(x)) 918ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_magic_ne(x, y) do { \ 928ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project eui64_magic(x); \ 938ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project } while (eui64_equals(x, y)) 948ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 958ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_get(ll, cp) do { \ 968ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project eui64_copy((*cp), (ll)); \ 978ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project (cp) += sizeof(eui64_t); \ 988ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project } while (0) 998ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 1008ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_put(ll, cp) do { \ 1018ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project eui64_copy((ll), (*cp)); \ 1028ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project (cp) += sizeof(eui64_t); \ 1038ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project } while (0) 1048ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 1058ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_set32(e, l) do { \ 1068ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project (e).e32[0] = 0; \ 1078ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project (e).e32[1] = htonl(l); \ 1088ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project } while (0) 1098ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#define eui64_setlo32(e, l) eui64_set32(e, l) 1108ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 1118ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Projectchar *eui64_ntoa __P((eui64_t)); /* Returns ascii representation of id */ 1128ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 1138ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project#endif /* __EUI64_H__ */ 1148ad0dd2a5c5f23cd210aedba72a43e48026e7436The Android Open Source Project 115