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/*
* Copyright (C) 2002-2011 Free Software Foundation, Inc.
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
#ifndef AUTH_CERT_H
#define AUTH_CERT_H
#include "gnutls_auth.h"
#include <auth/dh_common.h>
#include "x509/x509_int.h"
#include "openpgp/openpgp_int.h"
#include <gnutls/abstract.h>
#include <gnutls/compat.h>
/* This structure may be complex, but it's the only way to
* support a server that has multiple certificates
*/
typedef struct gnutls_certificate_credentials_st
{
gnutls_dh_params_t dh_params;
gnutls_rsa_params_t rsa_params;
/* this callback is used to retrieve the DH or RSA
* parameters.
*/
gnutls_params_function *params_func;
gnutls_pcert_st **cert_list;
/* contains a list of a list of certificates.
* eg (X509): [0] certificate1, certificate11, certificate111
* (if more than one, one certificate certifies the one before)
* [1] certificate2, certificate22, ...
*/
unsigned *cert_list_length;
/* contains the number of the certificates in a
* row (should be 1 for OpenPGP keys).
*/
unsigned ncerts; /* contains the number of columns in cert_list.
* This is the same with the number of pkeys.
*/
gnutls_privkey_t *pkey;
/* private keys. It contains ncerts private
* keys. pkey[i] corresponds to certificate in
* cert_list[i][0].
*/
#ifdef ENABLE_OPENPGP
/* OpenPGP specific stuff */
gnutls_openpgp_keyring_t keyring;
#endif
/* X509 specific stuff */
gnutls_x509_trust_list_t tlist;
unsigned int verify_flags; /* flags to be used at
* certificate verification.
*/
unsigned int verify_depth;
unsigned int verify_bits;
/* holds a sequence of the
* RDNs of the CAs above.
* This is better than
* generating on every handshake.
*/
gnutls_datum_t x509_rdn_sequence;
/* It's a mess here. However we need to keep the old 3 functions
* for compatibility */
gnutls_certificate_retrieve_function *get_cert_callback; /* deprecated */
gnutls_certificate_client_retrieve_function *client_get_cert_callback; /* deprecated */
gnutls_certificate_server_retrieve_function *server_get_cert_callback; /* deprecated */
gnutls_certificate_retrieve_function2 *get_cert_callback2;
gnutls_certificate_verify_function *verify_callback;
} certificate_credentials_st;
typedef struct rsa_info_st
{
gnutls_datum_t modulus;
gnutls_datum_t exponent;
} rsa_info_st;
/* This is the information we keep for the peer
* certificate.
*/
typedef struct cert_auth_info_st
{
/* These (dh/rsa) are just copies from the credentials_t structure.
* They must be freed.
*/
dh_info_st dh;
rsa_info_st rsa_export;
gnutls_datum_t *raw_certificate_list; /* holds the raw certificate of the
* peer.
*/
unsigned int ncerts; /* holds the size of the list above */
gnutls_certificate_type_t cert_type;
#ifdef ENABLE_OPENPGP
int use_subkey;
uint8_t subkey_id[GNUTLS_OPENPGP_KEYID_SIZE];
#endif
} *cert_auth_info_t;
typedef struct cert_auth_info_st cert_auth_info_st;
void _gnutls_free_rsa_info (rsa_info_st * rsa);
/* AUTH X509 functions */
int _gnutls_gen_cert_server_certificate (gnutls_session_t, gnutls_buffer_st *);
int _gnutls_gen_cert_client_certificate (gnutls_session_t, gnutls_buffer_st *);
int _gnutls_gen_cert_client_cert_vrfy (gnutls_session_t, gnutls_buffer_st *);
int _gnutls_gen_cert_server_cert_req (gnutls_session_t, gnutls_buffer_st *);
int _gnutls_proc_cert_cert_req (gnutls_session_t, opaque *, size_t);
int _gnutls_proc_cert_client_cert_vrfy (gnutls_session_t, opaque *, size_t);
int _gnutls_proc_cert_server_certificate (gnutls_session_t, opaque *, size_t);
int _gnutls_get_selected_cert (gnutls_session_t session,
gnutls_pcert_st ** apr_cert_list,
int *apr_cert_list_length,
gnutls_privkey_t * apr_pkey);
int _gnutls_server_select_cert (struct gnutls_session_int *,
gnutls_pk_algorithm_t*, size_t);
void _gnutls_selected_certs_deinit (gnutls_session_t session);
void _gnutls_selected_certs_set (gnutls_session_t session,
gnutls_pcert_st * certs, int ncerts,
gnutls_privkey_t key, int need_free);
#define _gnutls_proc_cert_client_certificate _gnutls_proc_cert_server_certificate
gnutls_rsa_params_t _gnutls_certificate_get_rsa_params (gnutls_rsa_params_t
rsa_params,
gnutls_params_function
* func,
gnutls_session_t);
int _gnutls_get_auth_info_pcert (gnutls_pcert_st* gcert,
gnutls_certificate_type_t type,
cert_auth_info_t info);
int certificate_credential_append_crt_list (gnutls_certificate_credentials_t
res, gnutls_pcert_st* crt, int nr);
int certificate_credentials_append_pkey (gnutls_certificate_credentials_t res,
gnutls_privkey_t pkey);
int _gnutls_selected_cert_supported_kx (struct gnutls_session_int *session,
gnutls_kx_algorithm_t * alg,
int *alg_size);
#endif
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