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/* mechanisms for preshared keys (public, private, and preshared secrets)
* Copyright (C) 1998-2002 D. Hugh Redelmeier.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*
* RCSID $Id: keys.h 3252 2007-10-06 21:24:50Z andreas $
*/
#ifndef _KEYS_H
#define _KEYS_H
#include <gmp.h> /* GNU Multi-Precision library */
#include "pkcs1.h"
#include "certs.h"
#ifndef SHARED_SECRETS_FILE
# define SHARED_SECRETS_FILE IPSEC_CONFDIR "/ipsec.secrets"
#endif
const char *shared_secrets_file;
extern void load_preshared_secrets(int whackfd);
extern void free_preshared_secrets(void);
enum PrivateKeyKind {
PPK_PSK,
/* PPK_DSS, */ /* not implemented */
PPK_RSA,
PPK_XAUTH,
PPK_PIN
};
extern void xauth_defaults(void);
/* forward declaration */
struct connection;
extern const chunk_t *get_preshared_secret(const struct connection *c);
extern err_t unpack_RSA_public_key(RSA_public_key_t *rsa, const chunk_t *pubkey);
extern const RSA_private_key_t *get_RSA_private_key(const struct connection *c);
extern const RSA_private_key_t *get_x509_private_key(const x509cert_t *cert);
/* public key machinery */
typedef struct pubkey pubkey_t;
struct pubkey {
struct id id;
unsigned refcnt; /* reference counted! */
enum dns_auth_level dns_auth_level;
char *dns_sig;
time_t installed_time
, last_tried_time
, last_worked_time
, until_time;
chunk_t issuer;
chunk_t serial;
enum pubkey_alg alg;
union {
RSA_public_key_t rsa;
} u;
};
typedef struct pubkey_list pubkey_list_t;
struct pubkey_list {
pubkey_t *key;
pubkey_list_t *next;
};
extern pubkey_list_t *pubkeys; /* keys from ipsec.conf or from certs */
extern pubkey_t *public_key_from_rsa(const RSA_public_key_t *k);
extern pubkey_list_t *free_public_keyentry(pubkey_list_t *p);
extern void free_public_keys(pubkey_list_t **keys);
extern void free_remembered_public_keys(void);
extern void delete_public_keys(const struct id *id, enum pubkey_alg alg
, chunk_t issuer, chunk_t serial);
extern pubkey_t *reference_key(pubkey_t *pk);
extern void unreference_key(pubkey_t **pkp);
extern err_t add_public_key(const struct id *id
, enum dns_auth_level dns_auth_level
, enum pubkey_alg alg
, const chunk_t *key
, pubkey_list_t **head);
extern bool has_private_key(cert_t cert);
extern void add_x509_public_key(x509cert_t *cert, time_t until
, enum dns_auth_level dns_auth_level);
extern void add_pgp_public_key(pgpcert_t *cert, time_t until
, enum dns_auth_level dns_auth_level);
extern void remove_x509_public_key(const x509cert_t *cert);
extern void list_public_keys(bool utc);
struct gw_info; /* forward declaration of tag (defined in dnskey.h) */
extern void transfer_to_public_keys(struct gw_info *gateways_from_dns
#ifdef USE_KEYRR
, pubkey_list_t **keys
#endif /* USE_KEYRR */
);
#endif /* _KEYS_H */
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