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strongswan-ext/src/libstrongswan/credential_store.h
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/**
* @file credential_store.h
*
* @brief Interface credential_store_t.
*
*/
/*
* Copyright (C) 2005-2006 Martin Willi
* Copyright (C) 2005 Jan Hutter
* Hochschule fuer Technik Rapperswil
*
* 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.
*/
#ifndef CREDENTIAL_STORE_H_
#define CREDENTIAL_STORE_H_
typedef struct credential_store_t credential_store_t;
#include <library.h>
#include <crypto/x509.h>
#include <crypto/ca.h>
#include <crypto/rsa/rsa_private_key.h>
#include <crypto/rsa/rsa_public_key.h>
#include <utils/identification.h>
/**
* @brief The interface for a credential_store backend.
*
* @b Constructors:
* - stroke_create()
*
* @ingroup config
*/
struct credential_store_t {
/**
* @brief Returns the secret shared by two specific IDs.
*
* The returned chunk must be destroyed by the caller after usage.
*
* @param this calling object
* @param my_id my ID identifiying the secret.
* @param other_id peer ID identifying the secret.
* @param[out] secret the pre-shared secret will be written there.
* @return
* - NOT_FOUND if no preshared secrets for specific ID could be found
* - SUCCESS
*
*/
status_t (*get_shared_key) (credential_store_t *this, identification_t *my_id,
identification_t *other_id, chunk_t *shared_key);
/**
* @brief Returns the EAP secret for two specified IDs.
*
* The returned chunk must be destroyed by the caller after usage.
*
* @param this calling object
* @param my_id my ID identifiying the secret.
* @param other_id peer ID identifying the secret.
* @param[out] eap_key the EAP secret will be written here
* @return
* - NOT_FOUND if no preshared secrets for specific ID could be found
* - SUCCESS
*
*/
status_t (*get_eap_key) (credential_store_t *this, identification_t *my_id,
identification_t *other_id, chunk_t *eap_key);
/**
* @brief Returns the RSA public key of a specific ID.
*
* @param this calling object
* @param id identification_t object identifiying the key.
* @return public key, or NULL if not found
*/
rsa_public_key_t* (*get_rsa_public_key) (credential_store_t *this, identification_t *id);
/**
* @brief Is there a matching RSA private key belonging to an RSA public key?
*
* @param this calling object
* @param pubkey public key
* @return TRUE if matching private key was found
*/
bool (*has_rsa_private_key) (credential_store_t *this, rsa_public_key_t *pubkey);
/**
* @brief Returns the certificate of a specific ID.
*
* @param this calling object
* @param id identification_t object identifiying the cert.
* @return certificate, or NULL if not found
*/
x509_t* (*get_certificate) (credential_store_t *this, identification_t *id);
/**
* @brief Returns the auth certificate of a specific subject distinguished name.
*
* @param this calling object
* @param auth_flags set of allowed authority types
* @param id identification_t object identifiying the cacert.
* @return certificate, or NULL if not found
*/
x509_t* (*get_auth_certificate) (credential_store_t *this, u_int auth_flags, identification_t *id);
/**
* @brief Returns the ca certificate of a specific keyID.
*
* @param this calling object
* @param keyid identification_t object identifiying the cacert.
* @return certificate, or NULL if not found
*/
x509_t* (*get_ca_certificate_by_keyid) (credential_store_t *this, chunk_t keyid);
/**
* @brief Returns the issuing ca of a given certificate.
*
* @param this calling object
* @param cert certificate for which issuer ca info is required
* @return ca info, or NULL if not found
*/
ca_info_t* (*get_issuer) (credential_store_t *this, x509_t* cert);
/**
* @brief RSA private key belonging to an RSA public key
*
*
* @param this calling object
* @param pubkey public key used to find the matching private key
* @param hash_algorithm hash algorithm to be used for signature
* @param data data block to be signed
* @param signature signature to be returned
* @return status of the signature process - SUCCESS if successful
*/
status_t (*rsa_signature) (credential_store_t *this, rsa_public_key_t *pubkey, hash_algorithm_t hash_algorithm,
chunk_t data, chunk_t *signature);
/**
* @brief Verify an RSA signature given the ID of the signer
*
* @param this calling object
* @param hash hash value to be verified.
* @param sig signature to be verified.
* @param id identification_t object identifiying the signer.
* @param issuer_p issuer of the signer's certificate (if not self-signed).
* @return status of the verification - SUCCESS if successful
*/
status_t (*verify_signature) (credential_store_t *this, chunk_t hash, chunk_t sig, identification_t *id,
ca_info_t **issuer_p);
/**
* @brief Verify an X.509 certificate up to trust anchor without any status checks
*
* @param this calling object
* @param label label characterizing the certificate to be verified
* @param cert certificate to be verified
* @return TRUE if trusted
*/
bool (*is_trusted) (credential_store_t *this, const char *label, x509_t *cert);
/**
* @brief Verify an X.509 certificate up to trust anchor including status checks
*
* @param this calling object
* @param cert certificate to be verified
* @param found found a certificate copy in the credential store
* @return TRUE if valid, trusted, and current status is good
*/
bool (*verify) (credential_store_t *this, x509_t *cert, bool *found);
/**
* @brief If an end certificate does not already exists in the credential store then add it.
*
* @param this calling object
* @param cert certificate to be added
* @return pointer to the added or already existing certificate
*/
x509_t* (*add_end_certificate) (credential_store_t *this, x509_t *cert);
/**
* @brief If an authority certificate does not already exists in the credential store then add it.
*
* @param this calling object
* @param cert authority certificate to be added
* @param auth_flag authority flags to add to the certificate
* @return pointer to the added or already existing certificate
*/
x509_t* (*add_auth_certificate) (credential_store_t *this, x509_t *cert, u_int auth_flag);
/**
* @brief If a ca info record does not already exists in the credential store then add it.
*
* @param this calling object
* @param ca_info ca info record to be added
* @return pointer to the added or already existing ca_info_t record
*/
ca_info_t* (*add_ca_info) (credential_store_t *this, ca_info_t *ca_info);
/**
* @brief Release a ca info record with a given name.
*
* @param this calling object
* @param name name of the ca info record to be released
* @return
* - SUCCESS, or
* - NOT_FOUND
*/
status_t (*release_ca_info) (credential_store_t *this, const char *name);
/**
* @brief Create an iterator over all end certificates.
*
* @param this calling object
* @return iterator
*/
iterator_t* (*create_cert_iterator) (credential_store_t *this);
/**
* @brief Create an iterator over all authority certificates.
*
* @param this calling object
* @return iterator
*/
iterator_t* (*create_auth_cert_iterator) (credential_store_t *this);
/**
* @brief Create an iterator over all CA info records
*
* @param this calling object
* @return iterator
*/
iterator_t* (*create_cainfo_iterator) (credential_store_t *this);
/**
* @brief Create an iterator over all attribute certificates.
*
* @param this calling object
* @return iterator
*/
iterator_t* (*create_acert_iterator) (credential_store_t *this);
/**
* @brief Loads ca certificates from a default directory.
*
* Certificates in both DER and PEM format are accepted
*
* @param this calling object
*/
void (*load_ca_certificates) (credential_store_t *this);
/**
* @brief Loads authorization authority certificates from a default directory.
*
* Certificates in both DER and PEM format are accepted
*
* @param this calling object
*/
void (*load_aa_certificates) (credential_store_t *this);
/**
* @brief Loads attribute certificates from a default directory.
*
* Certificates in both DER and PEM format are accepted
*
* @param this calling object
*/
void (*load_attr_certificates) (credential_store_t *this);
/**
* @brief Loads ocsp certificates from a default directory.
*
* Certificates in both DER and PEM format are accepted
*
* @param this calling object
*/
void (*load_ocsp_certificates) (credential_store_t *this);
/**
* @brief Loads CRLs from a default directory.
*
* Certificates in both DER and PEM format are accepted
*
* @param this calling object
* @param path directory to load crls from
*/
void (*load_crls) (credential_store_t *this);
/**
* @brief Loads secrets in ipsec.secrets
*
* RSA private key files can be either in DER or PEM format
* Optional encryption with a passphrase supported
*
* @param this calling object
* @param reload are the secrets to be reloaded
*/
void (*load_secrets) (credential_store_t *this, bool reload);
/**
* @brief Destroys a credential_store_t object.
*
* @param this calling object
*/
void (*destroy) (credential_store_t *this);
};
/**
* @brief Creates a credential_store_t instance.
*
* @param strict enforce a strict crl policy
* @return credential store instance.
*
* @ingroup config
*/
credential_store_t *credential_store_create(bool strict);
#endif /*CREDENTIAL_STORE_H_*/