| /* |
| * eui64.h - EUI64 routines for IPv6CP. |
| * |
| * Copyright (c) 1999 Tommi Komulainen. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The name(s) of the authors of this software must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. |
| * |
| * 4. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by Tommi Komulainen |
| * <Tommi.Komulainen@iki.fi>". |
| * |
| * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO |
| * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY |
| * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY |
| * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN |
| * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING |
| * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| * |
| * $Id: eui64.h,v 1.6 2002/12/04 23:03:32 paulus Exp $ |
| */ |
| |
| #include "netif/ppp/ppp_opts.h" |
| #if PPP_SUPPORT && PPP_IPV6_SUPPORT /* don't build if not configured for use in lwipopts.h */ |
| |
| #ifndef EUI64_H |
| #define EUI64_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * @todo: |
| * |
| * Maybe this should be done by processing struct in6_addr directly... |
| */ |
| typedef union |
| { |
| u8_t e8[8]; |
| u16_t e16[4]; |
| u32_t e32[2]; |
| } eui64_t; |
| |
| #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] = lwip_htonl(l); \ |
| } while (0) |
| #define eui64_setlo32(e, l) eui64_set32(e, l) |
| |
| char *eui64_ntoa(eui64_t); /* Returns ascii representation of id */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* EUI64_H */ |
| #endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */ |