diff options
Diffstat (limited to 'pppd_plugin/src/pppd/eui64.h')
| -rw-r--r-- | pppd_plugin/src/pppd/eui64.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/pppd_plugin/src/pppd/eui64.h b/pppd_plugin/src/pppd/eui64.h new file mode 100644 index 0000000..0f6b6fd --- /dev/null +++ b/pppd_plugin/src/pppd/eui64.h @@ -0,0 +1,114 @@ +/* + * 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 $ +*/ + +#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__ */ + |