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crypto: introduce new module for TLS x509 credentials

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Introduce a QCryptoTLSCredsX509 class which is used to
manage x509 certificate TLS credentials. This will be
the preferred credential type offering strong security
characteristics

Example CLI configuration:

 $QEMU -object tls-creds-x509,id=tls0,endpoint=server,\
               dir=/path/to/creds/dir,verify-peer=yes

The 'id' value in the -object args will be used to associate the
credentials with the network services. For example, when the VNC
server is later converted it would use

 $QEMU -object tls-creds-x509,id=tls0,.... \
       -vnc 127.0.0.1:1,tls-creds=tls0

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Daniel P. Berrange 2015-03-13 17:39:26 +00:00
parent e00adf6c3e
commit 85bcbc789e
5 changed files with 406 additions and 0 deletions
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112
include/crypto/tlscredsx509.h Normal file
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/*
* QEMU crypto TLS x509 credential support
*
* Copyright (c) 2015 Red Hat, Inc.
*
* This library 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 2 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef QCRYPTO_TLSCRED_X509_H__
#define QCRYPTO_TLSCRED_X509_H__
#include "crypto/tlscreds.h"
#define TYPE_QCRYPTO_TLS_CREDS_X509 "tls-creds-x509"
#define QCRYPTO_TLS_CREDS_X509(obj) \
OBJECT_CHECK(QCryptoTLSCredsX509, (obj), TYPE_QCRYPTO_TLS_CREDS_X509)
typedef struct QCryptoTLSCredsX509 QCryptoTLSCredsX509;
typedef struct QCryptoTLSCredsX509Class QCryptoTLSCredsX509Class;
#define QCRYPTO_TLS_CREDS_X509_CA_CERT "ca-cert.pem"
#define QCRYPTO_TLS_CREDS_X509_CA_CRL "ca-crl.pem"
#define QCRYPTO_TLS_CREDS_X509_SERVER_KEY "server-key.pem"
#define QCRYPTO_TLS_CREDS_X509_SERVER_CERT "server-cert.pem"
#define QCRYPTO_TLS_CREDS_X509_CLIENT_KEY "client-key.pem"
#define QCRYPTO_TLS_CREDS_X509_CLIENT_CERT "client-cert.pem"
/**
* QCryptoTLSCredsX509:
*
* The QCryptoTLSCredsX509 object provides a representation
* of x509 credentials used to perform a TLS handshake.
*
* This is a user creatable object, which can be instantiated
* via object_new_propv():
*
* <example>
* <title>Creating x509 TLS credential objects in code</title>
* <programlisting>
* Object *obj;
* Error *err = NULL;
* obj = object_new_propv(TYPE_QCRYPTO_TLS_CREDS_X509,
* "tlscreds0",
* &err,
* "endpoint", "server",
* "dir", "/path/x509/cert/dir",
* "verify-peer", "yes",
* NULL);
* </programlisting>
* </example>
*
* Or via QMP:
*
* <example>
* <title>Creating x509 TLS credential objects via QMP</title>
* <programlisting>
* {
* "execute": "object-add", "arguments": {
* "id": "tlscreds0",
* "qom-type": "tls-creds-x509",
* "props": {
* "endpoint": "server",
* "dir": "/path/to/x509/cert/dir",
* "verify-peer": false
* }
* }
* }
* </programlisting>
* </example>
*
*
* Or via the CLI:
*
* <example>
* <title>Creating x509 TLS credential objects via CLI</title>
* <programlisting>
* qemu-system-x86_64 -object tls-creds-x509,id=tlscreds0,\
* endpoint=server,verify-peer=off,\
* dir=/path/to/x509/certdir/
* </programlisting>
* </example>
*
*/
struct QCryptoTLSCredsX509 {
QCryptoTLSCreds parent_obj;
#ifdef CONFIG_GNUTLS
gnutls_certificate_credentials_t data;
#endif
};
struct QCryptoTLSCredsX509Class {
QCryptoTLSCredsClass parent_class;
};
#endif /* QCRYPTO_TLSCRED_X509_H__ */