virnettlscontexttest.c

/*
 * Copyright (C) 2011-2012 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 2.1 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/>.
 *
 * Author: Daniel P. Berrange <berrange@redhat.com>
 */

#include <config.h>

#include <stdlib.h>
#include <fcntl.h>
#include <sys/socket.h>

#include "testutils.h"
#include "virnettlshelpers.h"
#include "virutil.h"
#include "virerror.h"
#include "viralloc.h"
#include "virlog.h"
#include "virfile.h"
#include "vircommand.h"
#include "virsocketaddr.h"

#if !defined WIN32 && HAVE_LIBTASN1_H && LIBGNUTLS_VERSION_NUMBER >= 0x020600

# include "rpc/virnettlscontext.h"

# define VIR_FROM_THIS VIR_FROM_RPC

# define KEYFILE "key-ctx.pem"

struct testTLSContextData {
    bool isServer;
    const char *cacrt;
    const char *crt;
    bool expectFail;
};


/*
 * This tests sanity checking of our own certificates
 *
 * This code is done when libvirtd starts up, or before
 * a libvirt client connects. The test is ensuring that
 * the creation of virNetTLSContextPtr fails if we
 * give bogus certs, or succeeds for good certs
 */
static int testTLSContextInit(const void *opaque)
{
    struct testTLSContextData *data = (struct testTLSContextData *)opaque;
    virNetTLSContextPtr ctxt = NULL;
    int ret = -1;

    if (data->isServer) {
        ctxt = virNetTLSContextNewServer(data->cacrt,
                                         NULL,
                                         data->crt,
                                         KEYFILE,
                                         NULL,
                                         true,
                                         true);
    } else {
        ctxt = virNetTLSContextNewClient(data->cacrt,
                                         NULL,
                                         data->crt,
                                         KEYFILE,
                                         true,
                                         true);
    }

    if (ctxt) {
        if (data->expectFail) {
            VIR_WARN("Expected failure %s against %s",
                     data->cacrt, data->crt);
            goto cleanup;
        }
    } else {
        virErrorPtr err = virGetLastError();
        if (!data->expectFail) {
            VIR_WARN("Unexpected failure %s against %s",
                     data->cacrt, data->crt);
            goto cleanup;
        }
        VIR_DEBUG("Got error %s", err ? err->message : "<unknown>");
    }

    ret = 0;

cleanup:
    virObjectUnref(ctxt);
    return ret;
}



static int
mymain(void)
{
    int ret = 0;

    testTLSInit(KEYFILE);

# define DO_CTX_TEST(_isServer, _caCrt, _crt, _expectFail)              \
    do {                                                                \
        static struct testTLSContextData data;                          \
        data.isServer = _isServer;                                      \
        data.cacrt = _caCrt;                                            \
        data.crt = _crt;                                                \
        data.expectFail = _expectFail;                                  \
        if (virtTestRun("TLS Context " #_caCrt  " + " #_crt, 1,         \
                        testTLSContextInit, &data) < 0)                 \
            ret = -1;                                                   \
    } while (0)

# define TLS_CERT_REQ(varname, cavarname,                               \
                      co, cn, an1, an2, ia1, ia2, bce, bcc, bci,        \
                      kue, kuc, kuv, kpe, kpc, kpo1, kpo2, so, eo)      \
    static struct testTLSCertReq varname = {                            \
        NULL, #varname "-ctx.pem",                                      \
        co, cn, an1, an2, ia1, ia2, bce, bcc, bci,                      \
        kue, kuc, kuv, kpe, kpc, kpo1, kpo2, so, eo                     \
    };                                                                  \
    testTLSGenerateCert(&varname, cavarname.crt)

# define TLS_ROOT_REQ(varname,                                          \
                      co, cn, an1, an2, ia1, ia2, bce, bcc, bci,        \
                      kue, kuc, kuv, kpe, kpc, kpo1, kpo2, so, eo)      \
    static struct testTLSCertReq varname = {                            \
        NULL, #varname "-ctx.pem",                                      \
        co, cn, an1, an2, ia1, ia2, bce, bcc, bci,                      \
        kue, kuc, kuv, kpe, kpc, kpo1, kpo2, so, eo                     \
    };                                                                  \
    testTLSGenerateCert(&varname, NULL)


    /* A perfect CA, perfect client & perfect server */

    /* Basic:CA:critical */
    TLS_ROOT_REQ(cacertreq,
                 "UK", "libvirt CA", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);

    TLS_CERT_REQ(servercertreq, cacertreq,
                 "UK", "libvirt.org", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);
    TLS_CERT_REQ(clientcertreq, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_CLIENT, NULL,
                 0, 0);

    DO_CTX_TEST(true, cacertreq.filename, servercertreq.filename, false);
    DO_CTX_TEST(false, cacertreq.filename, clientcertreq.filename, false);


    /* Some other CAs which are good */

    /* Basic:CA:critical */
    TLS_ROOT_REQ(cacert1req,
                 "UK", "libvirt CA 1", NULL, NULL, NULL, NULL,
                 true, true, true,
                 false, false, 0,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(servercert1req, cacert1req,
                 "UK", "libvirt.org", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);

    /* Basic:CA:not-critical */
    TLS_ROOT_REQ(cacert2req,
                 "UK", "libvirt CA 2", NULL, NULL, NULL, NULL,
                 true, false, true,
                 false, false, 0,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(servercert2req, cacert2req,
                 "UK", "libvirt.org", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);

    /* Key usage:cert-sign:critical */
    TLS_ROOT_REQ(cacert3req,
                 "UK", "libvirt CA 3", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(servercert3req, cacert3req,
                 "UK", "libvirt.org", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);

    DO_CTX_TEST(true, cacert1req.filename, servercert1req.filename, false);
    DO_CTX_TEST(true, cacert2req.filename, servercert2req.filename, false);
    DO_CTX_TEST(true, cacert3req.filename, servercert3req.filename, false);

    /* Now some bad certs */

    /* Key usage:dig-sig:not-critical */
    TLS_ROOT_REQ(cacert4req,
                 "UK", "libvirt CA 4", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, false, GNUTLS_KEY_DIGITAL_SIGNATURE,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(servercert4req, cacert4req,
                 "UK", "libvirt.org", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);
    /* no-basic */
    TLS_ROOT_REQ(cacert5req,
                 "UK", "libvirt CA 5", NULL, NULL, NULL, NULL,
                 false, false, false,
                 false, false, 0,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(servercert5req, cacert5req,
                 "UK", "libvirt.org", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);
    /* Key usage:dig-sig:critical */
    TLS_ROOT_REQ(cacert6req,
                 "UK", "libvirt CA 6", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(servercert6req, cacert6req,
                 "UK", "libvirt.org", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);

    /* Technically a CA cert with basic constraints
     * key purpose == key signing + non-critical should
     * be rejected. GNUTLS < 3 does not reject it and
     * we don't anticipate them changing this behaviour
     */
    DO_CTX_TEST(true, cacert4req.filename, servercert4req.filename, GNUTLS_VERSION_MAJOR >= 3);
    DO_CTX_TEST(true, cacert5req.filename, servercert5req.filename, true);
    DO_CTX_TEST(true, cacert6req.filename, servercert6req.filename, true);


    /* Various good servers */
    /* no usage or purpose */
    TLS_CERT_REQ(servercert7req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 false, false, NULL, NULL,
                 0, 0);
    /* usage:cert-sign+dig-sig+encipher:critical */
    TLS_CERT_REQ(servercert8req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT | GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    /* usage:cert-sign:not-critical */
    TLS_CERT_REQ(servercert9req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, false, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    /* purpose:server:critical */
    TLS_CERT_REQ(servercert10req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);
    /* purpose:server:not-critical */
    TLS_CERT_REQ(servercert11req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, false, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);
    /* purpose:client+server:critical */
    TLS_CERT_REQ(servercert12req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, true, GNUTLS_KP_TLS_WWW_CLIENT, GNUTLS_KP_TLS_WWW_SERVER,
                 0, 0);
    /* purpose:client+server:not-critical */
    TLS_CERT_REQ(servercert13req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, false, GNUTLS_KP_TLS_WWW_CLIENT, GNUTLS_KP_TLS_WWW_SERVER,
                 0, 0);

    DO_CTX_TEST(true, cacertreq.filename, servercert7req.filename, false);
    DO_CTX_TEST(true, cacertreq.filename, servercert8req.filename, false);
    DO_CTX_TEST(true, cacertreq.filename, servercert9req.filename, false);
    DO_CTX_TEST(true, cacertreq.filename, servercert10req.filename, false);
    DO_CTX_TEST(true, cacertreq.filename, servercert11req.filename, false);
    DO_CTX_TEST(true, cacertreq.filename, servercert12req.filename, false);
    DO_CTX_TEST(true, cacertreq.filename, servercert13req.filename, false);
    /* Bad servers */

    /* usage:cert-sign:critical */
    TLS_CERT_REQ(servercert14req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    /* purpose:client:critical */
    TLS_CERT_REQ(servercert15req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, true, GNUTLS_KP_TLS_WWW_CLIENT, NULL,
                 0, 0);
    /* usage: none:critical */
    TLS_CERT_REQ(servercert16req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, 0,
                 false, false, NULL, NULL,
                 0, 0);

    DO_CTX_TEST(true, cacertreq.filename, servercert14req.filename, true);
    DO_CTX_TEST(true, cacertreq.filename, servercert15req.filename, true);
    DO_CTX_TEST(true, cacertreq.filename, servercert16req.filename, true);



    /* Various good clients */
    /* no usage or purpose */
    TLS_CERT_REQ(clientcert1req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 false, false, NULL, NULL,
                 0, 0);
    /* usage:cert-sign+dig-sig+encipher:critical */
    TLS_CERT_REQ(clientcert2req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT | GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    /* usage:cert-sign:not-critical */
    TLS_CERT_REQ(clientcert3req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, false, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    /* purpose:client:critical */
    TLS_CERT_REQ(clientcert4req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, true, GNUTLS_KP_TLS_WWW_CLIENT, NULL,
                 0, 0);
    /* purpose:client:not-critical */
    TLS_CERT_REQ(clientcert5req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, false, GNUTLS_KP_TLS_WWW_CLIENT, NULL,
                 0, 0);
    /* purpose:client+client:critical */
    TLS_CERT_REQ(clientcert6req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, true, GNUTLS_KP_TLS_WWW_CLIENT, GNUTLS_KP_TLS_WWW_SERVER,
                 0, 0);
    /* purpose:client+client:not-critical */
    TLS_CERT_REQ(clientcert7req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, false, GNUTLS_KP_TLS_WWW_CLIENT, GNUTLS_KP_TLS_WWW_SERVER,
                 0, 0);

    DO_CTX_TEST(false, cacertreq.filename, clientcert1req.filename, false);
    DO_CTX_TEST(false, cacertreq.filename, clientcert2req.filename, false);
    DO_CTX_TEST(false, cacertreq.filename, clientcert3req.filename, false);
    DO_CTX_TEST(false, cacertreq.filename, clientcert4req.filename, false);
    DO_CTX_TEST(false, cacertreq.filename, clientcert5req.filename, false);
    DO_CTX_TEST(false, cacertreq.filename, clientcert6req.filename, false);
    DO_CTX_TEST(false, cacertreq.filename, clientcert7req.filename, false);
    /* Bad clients */

    /* usage:cert-sign:critical */
    TLS_CERT_REQ(clientcert8req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    /* purpose:client:critical */
    TLS_CERT_REQ(clientcert9req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 false, false, 0,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);
    /* usage: none:critical */
    TLS_CERT_REQ(clientcert10req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, 0,
                 false, false, NULL, NULL,
                 0, 0);

    DO_CTX_TEST(false, cacertreq.filename, clientcert8req.filename, true);
    DO_CTX_TEST(false, cacertreq.filename, clientcert9req.filename, true);
    DO_CTX_TEST(false, cacertreq.filename, clientcert10req.filename, true);



    /* Expired stuff */

    TLS_ROOT_REQ(cacertexpreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, -1);
    TLS_CERT_REQ(servercertexpreq, cacertexpreq,
                 "UK", "libvirt.org", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);
    TLS_CERT_REQ(servercertexp1req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, -1);
    TLS_CERT_REQ(clientcertexp1req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_CLIENT, NULL,
                 0, -1);

    DO_CTX_TEST(true, cacertexpreq.filename, servercertexpreq.filename, true);
    DO_CTX_TEST(true, cacertreq.filename, servercertexp1req.filename, true);
    DO_CTX_TEST(false, cacertreq.filename, clientcertexp1req.filename, true);


    /* Not activated stuff */

    TLS_ROOT_REQ(cacertnewreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 1, 2);
    TLS_CERT_REQ(servercertnewreq, cacertnewreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);
    TLS_CERT_REQ(servercertnew1req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 1, 2);
    TLS_CERT_REQ(clientcertnew1req, cacertreq,
                 "UK", "libvirt", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_CLIENT, NULL,
                 1, 2);

    DO_CTX_TEST(true, cacertnewreq.filename, servercertnewreq.filename, true);
    DO_CTX_TEST(true, cacertreq.filename, servercertnew1req.filename, true);
    DO_CTX_TEST(false, cacertreq.filename, clientcertnew1req.filename, true);

    TLS_ROOT_REQ(cacertrootreq,
                 "UK", "libvirt root", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(cacertlevel1areq, cacertrootreq,
                 "UK", "libvirt level 1a", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(cacertlevel1breq, cacertrootreq,
                 "UK", "libvirt level 1b", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(cacertlevel2areq, cacertlevel1areq,
                 "UK", "libvirt level 2a", NULL, NULL, NULL, NULL,
                 true, true, true,
                 true, true, GNUTLS_KEY_KEY_CERT_SIGN,
                 false, false, NULL, NULL,
                 0, 0);
    TLS_CERT_REQ(servercertlevel3areq, cacertlevel2areq,
                 "UK", "libvirt.org", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
                 0, 0);
    TLS_CERT_REQ(clientcertlevel2breq, cacertlevel1breq,
                 "UK", "libvirt client level 2b", NULL, NULL, NULL, NULL,
                 true, true, false,
                 true, true, GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
                 true, true, GNUTLS_KP_TLS_WWW_CLIENT, NULL,
                 0, 0);

    gnutls_x509_crt_t certchain[] = {
        cacertrootreq.crt,
        cacertlevel1areq.crt,
        cacertlevel1breq.crt,
        cacertlevel2areq.crt,
    };

    testTLSWriteCertChain("cacertchain-ctx.pem",
                          certchain,
                          ARRAY_CARDINALITY(certchain));

    DO_CTX_TEST(true, "cacertchain-ctx.pem", servercertlevel3areq.filename, false);
    DO_CTX_TEST(false, "cacertchain-ctx.pem", clientcertlevel2breq.filename, false);

    DO_CTX_TEST(false, "cacertdoesnotexist.pem", "servercertdoesnotexist.pem", true);

    testTLSDiscardCert(&cacertreq);
    testTLSDiscardCert(&cacert1req);
    testTLSDiscardCert(&cacert2req);
    testTLSDiscardCert(&cacert3req);
    testTLSDiscardCert(&cacert4req);
    testTLSDiscardCert(&cacert5req);
    testTLSDiscardCert(&cacert6req);

    testTLSDiscardCert(&servercertreq);
    testTLSDiscardCert(&servercert1req);
    testTLSDiscardCert(&servercert2req);
    testTLSDiscardCert(&servercert3req);
    testTLSDiscardCert(&servercert4req);
    testTLSDiscardCert(&servercert5req);
    testTLSDiscardCert(&servercert6req);
    testTLSDiscardCert(&servercert7req);
    testTLSDiscardCert(&servercert8req);
    testTLSDiscardCert(&servercert9req);
    testTLSDiscardCert(&servercert10req);
    testTLSDiscardCert(&servercert11req);
    testTLSDiscardCert(&servercert12req);
    testTLSDiscardCert(&servercert13req);
    testTLSDiscardCert(&servercert14req);
    testTLSDiscardCert(&servercert15req);
    testTLSDiscardCert(&servercert16req);

    testTLSDiscardCert(&clientcertreq);
    testTLSDiscardCert(&clientcert1req);
    testTLSDiscardCert(&clientcert2req);
    testTLSDiscardCert(&clientcert3req);
    testTLSDiscardCert(&clientcert4req);
    testTLSDiscardCert(&clientcert5req);
    testTLSDiscardCert(&clientcert6req);
    testTLSDiscardCert(&clientcert7req);
    testTLSDiscardCert(&clientcert8req);
    testTLSDiscardCert(&clientcert9req);
    testTLSDiscardCert(&clientcert10req);

    testTLSDiscardCert(&cacertexpreq);
    testTLSDiscardCert(&servercertexpreq);
    testTLSDiscardCert(&servercertexp1req);
    testTLSDiscardCert(&clientcertexp1req);

    testTLSDiscardCert(&cacertnewreq);
    testTLSDiscardCert(&servercertnewreq);
    testTLSDiscardCert(&servercertnew1req);
    testTLSDiscardCert(&clientcertnew1req);

    testTLSDiscardCert(&cacertrootreq);
    testTLSDiscardCert(&cacertlevel1areq);
    testTLSDiscardCert(&cacertlevel1breq);
    testTLSDiscardCert(&cacertlevel2areq);
    testTLSDiscardCert(&servercertlevel3areq);
    testTLSDiscardCert(&clientcertlevel2breq);
    unlink("cacertchain-ctx.pem");

    testTLSCleanup(KEYFILE);

    return ret==0 ? EXIT_SUCCESS : EXIT_FAILURE;
}

VIRT_TEST_MAIN(mymain)

#else

int
main(void)
{
    return EXIT_AM_SKIP;
}

#endif