BadVPN – Blame information for rev 1
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| 1 | office | 1 | /* |
| 2 | * eui64.h - EUI64 routines for IPv6CP. |
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| 3 | * |
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| 4 | * Copyright (c) 1999 Tommi Komulainen. All rights reserved. |
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| 5 | * |
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| 6 | * Redistribution and use in source and binary forms, with or without |
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| 7 | * modification, are permitted provided that the following conditions |
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| 8 | * are met: |
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| 9 | * |
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| 10 | * 1. Redistributions of source code must retain the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer. |
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| 12 | * |
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| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 14 | * notice, this list of conditions and the following disclaimer in |
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| 15 | * the documentation and/or other materials provided with the |
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| 16 | * distribution. |
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| 17 | * |
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| 18 | * 3. The name(s) of the authors of this software must not be used to |
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| 19 | * endorse or promote products derived from this software without |
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| 20 | * prior written permission. |
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| 21 | * |
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| 22 | * 4. Redistributions of any form whatsoever must retain the following |
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| 23 | * acknowledgment: |
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| 24 | * "This product includes software developed by Tommi Komulainen |
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| 25 | * <Tommi.Komulainen@iki.fi>". |
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| 26 | * |
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| 27 | * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO |
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| 28 | * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY |
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| 29 | * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY |
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| 30 | * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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| 31 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN |
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| 32 | * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING |
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| 33 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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| 34 | * |
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| 35 | * $Id: eui64.h,v 1.6 2002/12/04 23:03:32 paulus Exp $ |
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| 36 | */ |
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| 37 | |||
| 38 | #include "netif/ppp/ppp_opts.h" |
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| 39 | #if PPP_SUPPORT && PPP_IPV6_SUPPORT /* don't build if not configured for use in lwipopts.h */ |
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| 40 | |||
| 41 | #ifndef EUI64_H |
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| 42 | #define EUI64_H |
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| 43 | |||
| 44 | /* |
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| 45 | * @todo: |
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| 46 | * |
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| 47 | * Maybe this should be done by processing struct in6_addr directly... |
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| 48 | */ |
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| 49 | typedef union |
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| 50 | { |
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| 51 | u8_t e8[8]; |
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| 52 | u16_t e16[4]; |
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| 53 | u32_t e32[2]; |
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| 54 | } eui64_t; |
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| 55 | |||
| 56 | #define eui64_iszero(e) (((e).e32[0] | (e).e32[1]) == 0) |
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| 57 | #define eui64_equals(e, o) (((e).e32[0] == (o).e32[0]) && \ |
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| 58 | ((e).e32[1] == (o).e32[1])) |
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| 59 | #define eui64_zero(e) (e).e32[0] = (e).e32[1] = 0; |
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| 60 | |||
| 61 | #define eui64_copy(s, d) memcpy(&(d), &(s), sizeof(eui64_t)) |
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| 62 | |||
| 63 | #define eui64_magic(e) do { \ |
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| 64 | (e).e32[0] = magic(); \ |
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| 65 | (e).e32[1] = magic(); \ |
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| 66 | (e).e8[0] &= ~2; \ |
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| 67 | } while (0) |
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| 68 | #define eui64_magic_nz(x) do { \ |
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| 69 | eui64_magic(x); \ |
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| 70 | } while (eui64_iszero(x)) |
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| 71 | #define eui64_magic_ne(x, y) do { \ |
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| 72 | eui64_magic(x); \ |
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| 73 | } while (eui64_equals(x, y)) |
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| 74 | |||
| 75 | #define eui64_get(ll, cp) do { \ |
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| 76 | eui64_copy((*cp), (ll)); \ |
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| 77 | (cp) += sizeof(eui64_t); \ |
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| 78 | } while (0) |
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| 79 | |||
| 80 | #define eui64_put(ll, cp) do { \ |
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| 81 | eui64_copy((ll), (*cp)); \ |
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| 82 | (cp) += sizeof(eui64_t); \ |
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| 83 | } while (0) |
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| 84 | |||
| 85 | #define eui64_set32(e, l) do { \ |
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| 86 | (e).e32[0] = 0; \ |
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| 87 | (e).e32[1] = lwip_htonl(l); \ |
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| 88 | } while (0) |
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| 89 | #define eui64_setlo32(e, l) eui64_set32(e, l) |
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| 90 | |||
| 91 | char *eui64_ntoa(eui64_t); /* Returns ascii representation of id */ |
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| 92 | |||
| 93 | #endif /* EUI64_H */ |
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| 94 | #endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */ |