Moved credential manager to libstrongswan
This commit is contained in:
Martin Willi
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/*
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* Copyright (C) 2007-2009 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup credential_manager credential_manager
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* @{ @ingroup credentials
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*/
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#ifndef CREDENTIAL_MANAGER_H_
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#define CREDENTIAL_MANAGER_H_
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typedef struct credential_manager_t credential_manager_t;
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#include <utils/identification.h>
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#include <utils/enumerator.h>
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#include <credentials/auth_cfg.h>
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#include <credentials/credential_set.h>
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#include <credentials/keys/private_key.h>
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#include <credentials/keys/shared_key.h>
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#include <credentials/certificates/certificate.h>
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/**
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* Manages credentials using credential_sets.
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*
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* The credential manager is the entry point of the credential framework. It
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* uses so called "sets" to access credentials in a modular fashion, these
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* are implemented through the credential_set_t interface.
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* The manager additionally does trust chain verification and trust status
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* chaching. A set may call the managers methods if it needs credentials itself,
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* the manager uses recursive locking.
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*
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* @verbatim
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+-------+ +----------------+
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| A | | | +------------------+
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| u | -----> | | ------> | +------------------+
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| t | | credential- | | | +------------------+
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| h | -----> | manager | ------> +--| | credential- | => IPC
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| e | | | +--| sets |
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| n | +--> | | ------> +------------------+
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| t | | | | |
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| i | | | | |
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| c | | +----------------+ |
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| a | | |
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| t | +----------------------------------------------+
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| o | may be recursive
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| r |
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+-------+
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@endverbatim
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*
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* The credential manager uses rwlocks for performance reasons, credential
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* sets must be fully thread save.
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*/
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struct credential_manager_t {
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/**
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* Create an enumerator over all certificates.
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*
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* @param cert kind of certificate
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* @param key kind of key in certificate
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* @param id subject this certificate belongs to
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* @param trusted TRUE to list trusted certificates only
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* @return enumerator over the certificates
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*/
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enumerator_t *(*create_cert_enumerator)(credential_manager_t *this,
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certificate_type_t cert, key_type_t key,
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identification_t *id, bool trusted);
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/**
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* Create an enumerator over all shared keys.
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*
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* The enumerator enumerates over:
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* shared_key_t*, id_match_t me, id_match_t other
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* But must accepts values for the id_matches.
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*
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* @param type kind of requested shared key
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* @param first first subject between key is shared
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* @param second second subject between key is shared
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* @return enumerator over shared keys
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*/
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enumerator_t *(*create_shared_enumerator)(credential_manager_t *this,
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shared_key_type_t type,
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identification_t *first, identification_t *second);
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/**
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* Create an enumerator over all Certificate Distribution Points.
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*
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* @param type kind of certificate the point distributes
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* @param id identification of the distributed certificate
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* @return enumerator of CDPs as char*
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*/
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enumerator_t *(*create_cdp_enumerator)(credential_manager_t *this,
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certificate_type_t type, identification_t *id);
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/**
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* Get a trusted or untrusted certificate.
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*
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* @param cert kind of certificate
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* @param key kind of key in certificate
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* @param id subject this certificate belongs to
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* @param trusted TRUE to get a trusted certificate only
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* @return certificate, if found, NULL otherwise
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*/
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certificate_t *(*get_cert)(credential_manager_t *this,
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certificate_type_t cert, key_type_t key,
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identification_t *id, bool trusted);
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/**
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* Get the best matching shared key for two IDs.
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*
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* @param type kind of requested shared key
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* @param me own identity
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* @param other peers identity
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* @return shared_key_t, NULL if none found
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*/
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shared_key_t *(*get_shared)(credential_manager_t *this, shared_key_type_t type,
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identification_t *me, identification_t *other);
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/**
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* Get a private key to create a signature.
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*
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* The get_private() method gets a secret private key identified by either
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* the keyid itself or an id the key belongs to.
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* The auth parameter contains additional information, such as receipients
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* trusted CA certs. Auth gets filled with subject and CA certificates
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* needed to validate a created signature.
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*
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* @param type type of the key to get
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* @param id identification the key belongs to
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* @param auth auth config, including trusted CA certificates
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* @return private_key_t, NULL if none found
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*/
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private_key_t* (*get_private)(credential_manager_t *this, key_type_t type,
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identification_t *id, auth_cfg_t *auth);
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/**
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* Create an enumerator over trusted public keys.
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*
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* This method gets a an enumerator over trusted public keys to verify a
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* signature created by id. The auth parameter contains additional
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* authentication infos, e.g. peer and intermediate certificates.
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* The resulting enumerator enumerates over public_key_t *, auth_cfg_t *,
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* where the auth config helper contains rules for constraint checks.
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*
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* @param type type of the key to get
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* @param id owner of the key, signer of the signature
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* @param auth authentication infos
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* @return enumerator
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*/
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enumerator_t* (*create_public_enumerator)(credential_manager_t *this,
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key_type_t type, identification_t *id, auth_cfg_t *auth);
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/**
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* Cache a certificate by invoking cache_cert() on all registerd sets.
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*
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* @param cert certificate to cache
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*/
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void (*cache_cert)(credential_manager_t *this, certificate_t *cert);
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/**
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* Flush the certificate cache.
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*
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* Only the managers local cache is flushed, but not the sets cache filled
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* by the cache_cert() method.
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*
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* @param type type of certificate to flush, or CERT_ANY
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*/
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void (*flush_cache)(credential_manager_t *this, certificate_type_t type);
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/**
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* Register a credential set to the manager.
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*
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* @param set set to register
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*/
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void (*add_set)(credential_manager_t *this, credential_set_t *set);
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/**
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* Unregister a credential set from the manager.
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*
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* @param set set to unregister
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*/
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void (*remove_set)(credential_manager_t *this, credential_set_t *set);
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/**
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* Destroy a credential_manager instance.
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*/
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void (*destroy)(credential_manager_t *this);
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};
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/**
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* Create a credential_manager instance.
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*/
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credential_manager_t *credential_manager_create();
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#endif /** CREDENTIAL_MANAGER_H_ @}*/
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