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/*
* security.h - helpers for security-related stuff
*/
/***********************************************************************
* Copyright © 2004-2006 Rémi Denis-Courmont. *
* This program is free software; you can redistribute and/or modify *
* it under the terms of the GNU General Public License as published *
* by the Free Software Foundation; version 2 of the license, or (at *
* your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
* See the GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, you can get it from: *
* http://www.gnu.org/copyleft/gpl.html *
***********************************************************************/
#ifndef __LIBTEREDO_SECURITY_H
# define __LIBTEREDO_SECURITY_H
struct in6_addr;
# ifdef __cplusplus
extern "C" {
# endif
#define LIBTEREDO_NONCE_LEN 8
#define LIBTEREDO_HMAC_LEN 22
int teredo_init_HMAC (void);
void teredo_deinit_HMAC (void);
void teredo_get_pinghash (uint32_t timestamp, const struct in6_addr *src,
const struct in6_addr *dst, uint8_t *restrict hash);
int teredo_verify_pinghash (uint32_t now, const struct in6_addr *src,
const struct in6_addr *dst,
const uint8_t *restrict hash);
void teredo_get_nonce (uint32_t timestamp, uint32_t ipv4, uint16_t port,
uint8_t *restrict nonce);
uint16_t teredo_get_flbits (uint32_t timestamp);
# ifdef __cplusplus
}
# endif
#endif
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