536 lines
19 KiB
C
536 lines
19 KiB
C
/*
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* Copyright (C) 2015 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#include <stdlib.h>
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#include <fcntl.h>
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#include "config-host.h"
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#include "crypto-tls-x509-helpers.h"
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#include "crypto/tlscredsx509.h"
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#include "crypto/tlssession.h"
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#include "qom/object_interfaces.h"
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#include "qemu/sockets.h"
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#include "qemu/acl.h"
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#ifdef QCRYPTO_HAVE_TLS_TEST_SUPPORT
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#define WORKDIR "tests/test-crypto-tlssession-work/"
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#define KEYFILE WORKDIR "key-ctx.pem"
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struct QCryptoTLSSessionTestData {
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const char *servercacrt;
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const char *clientcacrt;
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const char *servercrt;
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const char *clientcrt;
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bool expectServerFail;
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bool expectClientFail;
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const char *hostname;
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const char *const *wildcards;
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};
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static ssize_t testWrite(const char *buf, size_t len, void *opaque)
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{
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int *fd = opaque;
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return write(*fd, buf, len);
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}
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static ssize_t testRead(char *buf, size_t len, void *opaque)
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{
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int *fd = opaque;
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return read(*fd, buf, len);
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}
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static QCryptoTLSCreds *test_tls_creds_create(QCryptoTLSCredsEndpoint endpoint,
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const char *certdir,
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Error **errp)
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{
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Error *err = NULL;
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Object *parent = object_get_objects_root();
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Object *creds = object_new_with_props(
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TYPE_QCRYPTO_TLS_CREDS_X509,
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parent,
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(endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER ?
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"testtlscredsserver" : "testtlscredsclient"),
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&err,
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"endpoint", (endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER ?
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"server" : "client"),
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"dir", certdir,
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"verify-peer", "yes",
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/* We skip initial sanity checks here because we
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* want to make sure that problems are being
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* detected at the TLS session validation stage,
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* and the test-crypto-tlscreds test already
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* validate the sanity check code.
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*/
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"sanity-check", "no",
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NULL
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);
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if (err) {
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error_propagate(errp, err);
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return NULL;
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}
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return QCRYPTO_TLS_CREDS(creds);
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}
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/*
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* This tests validation checking of peer certificates
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*
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* This is replicating the checks that are done for an
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* active TLS session after handshake completes. To
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* simulate that we create our TLS contexts, skipping
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* sanity checks. We then get a socketpair, and
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* initiate a TLS session across them. Finally do
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* do actual cert validation tests
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*/
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static void test_crypto_tls_session(const void *opaque)
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{
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struct QCryptoTLSSessionTestData *data =
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(struct QCryptoTLSSessionTestData *)opaque;
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QCryptoTLSCreds *clientCreds;
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QCryptoTLSCreds *serverCreds;
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QCryptoTLSSession *clientSess = NULL;
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QCryptoTLSSession *serverSess = NULL;
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qemu_acl *acl;
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const char * const *wildcards;
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int channel[2];
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bool clientShake = false;
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bool serverShake = false;
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Error *err = NULL;
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int ret;
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/* We'll use this for our fake client-server connection */
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ret = socketpair(AF_UNIX, SOCK_STREAM, 0, channel);
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g_assert(ret == 0);
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/*
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* We have an evil loop to do the handshake in a single
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* thread, so we need these non-blocking to avoid deadlock
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* of ourselves
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*/
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qemu_set_nonblock(channel[0]);
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qemu_set_nonblock(channel[1]);
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#define CLIENT_CERT_DIR "tests/test-crypto-tlssession-client/"
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#define SERVER_CERT_DIR "tests/test-crypto-tlssession-server/"
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mkdir(CLIENT_CERT_DIR, 0700);
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mkdir(SERVER_CERT_DIR, 0700);
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unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT);
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unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_CERT);
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unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_KEY);
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unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT);
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unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_CERT);
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unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_KEY);
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g_assert(link(data->servercacrt,
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SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT) == 0);
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g_assert(link(data->servercrt,
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SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_CERT) == 0);
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g_assert(link(KEYFILE,
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SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_KEY) == 0);
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g_assert(link(data->clientcacrt,
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CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT) == 0);
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g_assert(link(data->clientcrt,
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CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_CERT) == 0);
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g_assert(link(KEYFILE,
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CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_KEY) == 0);
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clientCreds = test_tls_creds_create(
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QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT,
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CLIENT_CERT_DIR,
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&err);
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g_assert(clientCreds != NULL);
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serverCreds = test_tls_creds_create(
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QCRYPTO_TLS_CREDS_ENDPOINT_SERVER,
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SERVER_CERT_DIR,
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&err);
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g_assert(serverCreds != NULL);
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acl = qemu_acl_init("tlssessionacl");
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qemu_acl_reset(acl);
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wildcards = data->wildcards;
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while (wildcards && *wildcards) {
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qemu_acl_append(acl, 0, *wildcards);
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wildcards++;
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}
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/* Now the real part of the test, setup the sessions */
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clientSess = qcrypto_tls_session_new(
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clientCreds, data->hostname, NULL,
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QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT, &err);
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serverSess = qcrypto_tls_session_new(
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serverCreds, NULL,
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data->wildcards ? "tlssessionacl" : NULL,
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QCRYPTO_TLS_CREDS_ENDPOINT_SERVER, &err);
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g_assert(clientSess != NULL);
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g_assert(serverSess != NULL);
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/* For handshake to work, we need to set the I/O callbacks
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* to read/write over the socketpair
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*/
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qcrypto_tls_session_set_callbacks(serverSess,
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testWrite, testRead,
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&channel[0]);
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qcrypto_tls_session_set_callbacks(clientSess,
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testWrite, testRead,
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&channel[1]);
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/*
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* Finally we loop around & around doing handshake on each
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* session until we get an error, or the handshake completes.
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* This relies on the socketpair being nonblocking to avoid
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* deadlocking ourselves upon handshake
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*/
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do {
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int rv;
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if (!serverShake) {
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rv = qcrypto_tls_session_handshake(serverSess,
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&err);
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g_assert(rv >= 0);
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if (qcrypto_tls_session_get_handshake_status(serverSess) ==
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QCRYPTO_TLS_HANDSHAKE_COMPLETE) {
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serverShake = true;
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}
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}
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if (!clientShake) {
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rv = qcrypto_tls_session_handshake(clientSess,
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&err);
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g_assert(rv >= 0);
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if (qcrypto_tls_session_get_handshake_status(clientSess) ==
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QCRYPTO_TLS_HANDSHAKE_COMPLETE) {
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clientShake = true;
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}
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}
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} while (!clientShake && !serverShake);
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/* Finally make sure the server validation does what
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* we were expecting
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*/
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if (qcrypto_tls_session_check_credentials(serverSess, &err) < 0) {
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g_assert(data->expectServerFail);
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error_free(err);
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err = NULL;
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} else {
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g_assert(!data->expectServerFail);
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}
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/*
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* And the same for the client validation check
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*/
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if (qcrypto_tls_session_check_credentials(clientSess, &err) < 0) {
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g_assert(data->expectClientFail);
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error_free(err);
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err = NULL;
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} else {
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g_assert(!data->expectClientFail);
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}
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unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT);
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unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_CERT);
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unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_KEY);
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unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT);
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unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_CERT);
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unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_KEY);
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rmdir(CLIENT_CERT_DIR);
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rmdir(SERVER_CERT_DIR);
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object_unparent(OBJECT(serverCreds));
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object_unparent(OBJECT(clientCreds));
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qcrypto_tls_session_free(serverSess);
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qcrypto_tls_session_free(clientSess);
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close(channel[0]);
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close(channel[1]);
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}
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int main(int argc, char **argv)
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{
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int ret;
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module_call_init(MODULE_INIT_QOM);
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g_test_init(&argc, &argv, NULL);
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setenv("GNUTLS_FORCE_FIPS_MODE", "2", 1);
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mkdir(WORKDIR, 0700);
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test_tls_init(KEYFILE);
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# define TEST_SESS_REG(name, caCrt, \
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serverCrt, clientCrt, \
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expectServerFail, expectClientFail, \
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hostname, wildcards) \
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struct QCryptoTLSSessionTestData name = { \
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caCrt, caCrt, serverCrt, clientCrt, \
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expectServerFail, expectClientFail, \
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hostname, wildcards \
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}; \
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g_test_add_data_func("/qcrypto/tlssession/" # name, \
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&name, test_crypto_tls_session); \
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# define TEST_SESS_REG_EXT(name, serverCaCrt, clientCaCrt, \
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serverCrt, clientCrt, \
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expectServerFail, expectClientFail, \
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hostname, wildcards) \
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struct QCryptoTLSSessionTestData name = { \
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serverCaCrt, clientCaCrt, serverCrt, clientCrt, \
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expectServerFail, expectClientFail, \
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hostname, wildcards \
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}; \
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g_test_add_data_func("/qcrypto/tlssession/" # name, \
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&name, test_crypto_tls_session); \
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/* A perfect CA, perfect client & perfect server */
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/* Basic:CA:critical */
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TLS_ROOT_REQ(cacertreq,
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"UK", "qemu CA", NULL, NULL, NULL, NULL,
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true, true, true,
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true, true, GNUTLS_KEY_KEY_CERT_SIGN,
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false, false, NULL, NULL,
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0, 0);
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TLS_ROOT_REQ(altcacertreq,
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"UK", "qemu CA 1", NULL, NULL, NULL, NULL,
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true, true, true,
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false, false, 0,
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false, false, NULL, NULL,
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0, 0);
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TLS_CERT_REQ(servercertreq, cacertreq,
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"UK", "qemu.org", NULL, NULL, NULL, NULL,
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true, true, false,
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true, true,
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GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
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true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
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0, 0);
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TLS_CERT_REQ(clientcertreq, cacertreq,
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"UK", "qemu", NULL, NULL, NULL, NULL,
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true, true, false,
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true, true,
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GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
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true, true, GNUTLS_KP_TLS_WWW_CLIENT, NULL,
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0, 0);
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TLS_CERT_REQ(clientcertaltreq, altcacertreq,
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"UK", "qemu", NULL, NULL, NULL, NULL,
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true, true, false,
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true, true,
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GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
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true, true, GNUTLS_KP_TLS_WWW_CLIENT, NULL,
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0, 0);
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TEST_SESS_REG(basicca, cacertreq.filename,
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servercertreq.filename, clientcertreq.filename,
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false, false, "qemu.org", NULL);
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TEST_SESS_REG_EXT(differentca, cacertreq.filename,
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altcacertreq.filename, servercertreq.filename,
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clientcertaltreq.filename, true, true, "qemu.org", NULL);
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/* When an altname is set, the CN is ignored, so it must be duplicated
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* as an altname for it to match */
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TLS_CERT_REQ(servercertalt1req, cacertreq,
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"UK", "qemu.org", "www.qemu.org", "qemu.org",
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"192.168.122.1", "fec0::dead:beaf",
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true, true, false,
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true, true,
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GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
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true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
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0, 0);
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/* This intentionally doesn't replicate */
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TLS_CERT_REQ(servercertalt2req, cacertreq,
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"UK", "qemu.org", "www.qemu.org", "wiki.qemu.org",
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"192.168.122.1", "fec0::dead:beaf",
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true, true, false,
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true, true,
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GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
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true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
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0, 0);
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TEST_SESS_REG(altname1, cacertreq.filename,
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servercertalt1req.filename, clientcertreq.filename,
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false, false, "qemu.org", NULL);
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TEST_SESS_REG(altname2, cacertreq.filename,
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servercertalt1req.filename, clientcertreq.filename,
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false, false, "www.qemu.org", NULL);
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TEST_SESS_REG(altname3, cacertreq.filename,
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servercertalt1req.filename, clientcertreq.filename,
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false, true, "wiki.qemu.org", NULL);
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TEST_SESS_REG(altname4, cacertreq.filename,
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servercertalt2req.filename, clientcertreq.filename,
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false, true, "qemu.org", NULL);
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TEST_SESS_REG(altname5, cacertreq.filename,
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servercertalt2req.filename, clientcertreq.filename,
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false, false, "www.qemu.org", NULL);
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TEST_SESS_REG(altname6, cacertreq.filename,
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servercertalt2req.filename, clientcertreq.filename,
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false, false, "wiki.qemu.org", NULL);
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const char *const wildcards1[] = {
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"C=UK,CN=dogfood",
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NULL,
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};
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const char *const wildcards2[] = {
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"C=UK,CN=qemu",
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NULL,
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};
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const char *const wildcards3[] = {
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"C=UK,CN=dogfood",
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"C=UK,CN=qemu",
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NULL,
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};
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const char *const wildcards4[] = {
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"C=UK,CN=qemustuff",
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NULL,
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};
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const char *const wildcards5[] = {
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"C=UK,CN=qemu*",
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NULL,
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};
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const char *const wildcards6[] = {
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"C=UK,CN=*emu*",
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NULL,
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};
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TEST_SESS_REG(wildcard1, cacertreq.filename,
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servercertreq.filename, clientcertreq.filename,
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true, false, "qemu.org", wildcards1);
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TEST_SESS_REG(wildcard2, cacertreq.filename,
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servercertreq.filename, clientcertreq.filename,
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false, false, "qemu.org", wildcards2);
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TEST_SESS_REG(wildcard3, cacertreq.filename,
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servercertreq.filename, clientcertreq.filename,
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false, false, "qemu.org", wildcards3);
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TEST_SESS_REG(wildcard4, cacertreq.filename,
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servercertreq.filename, clientcertreq.filename,
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true, false, "qemu.org", wildcards4);
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TEST_SESS_REG(wildcard5, cacertreq.filename,
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servercertreq.filename, clientcertreq.filename,
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false, false, "qemu.org", wildcards5);
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TEST_SESS_REG(wildcard6, cacertreq.filename,
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servercertreq.filename, clientcertreq.filename,
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false, false, "qemu.org", wildcards6);
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TLS_ROOT_REQ(cacertrootreq,
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"UK", "qemu root", NULL, NULL, NULL, NULL,
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true, true, true,
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true, true, GNUTLS_KEY_KEY_CERT_SIGN,
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false, false, NULL, NULL,
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0, 0);
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TLS_CERT_REQ(cacertlevel1areq, cacertrootreq,
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"UK", "qemu level 1a", NULL, NULL, NULL, NULL,
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true, true, true,
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true, true, GNUTLS_KEY_KEY_CERT_SIGN,
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false, false, NULL, NULL,
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0, 0);
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TLS_CERT_REQ(cacertlevel1breq, cacertrootreq,
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"UK", "qemu level 1b", NULL, NULL, NULL, NULL,
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true, true, true,
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true, true, GNUTLS_KEY_KEY_CERT_SIGN,
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false, false, NULL, NULL,
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0, 0);
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TLS_CERT_REQ(cacertlevel2areq, cacertlevel1areq,
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"UK", "qemu level 2a", NULL, NULL, NULL, NULL,
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true, true, true,
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true, true, GNUTLS_KEY_KEY_CERT_SIGN,
|
|
false, false, NULL, NULL,
|
|
0, 0);
|
|
TLS_CERT_REQ(servercertlevel3areq, cacertlevel2areq,
|
|
"UK", "qemu.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", "qemu 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,
|
|
};
|
|
|
|
test_tls_write_cert_chain(WORKDIR "cacertchain-sess.pem",
|
|
certchain,
|
|
G_N_ELEMENTS(certchain));
|
|
|
|
TEST_SESS_REG(cachain, WORKDIR "cacertchain-sess.pem",
|
|
servercertlevel3areq.filename, clientcertlevel2breq.filename,
|
|
false, false, "qemu.org", NULL);
|
|
|
|
ret = g_test_run();
|
|
|
|
test_tls_discard_cert(&clientcertreq);
|
|
test_tls_discard_cert(&clientcertaltreq);
|
|
|
|
test_tls_discard_cert(&servercertreq);
|
|
test_tls_discard_cert(&servercertalt1req);
|
|
test_tls_discard_cert(&servercertalt2req);
|
|
|
|
test_tls_discard_cert(&cacertreq);
|
|
test_tls_discard_cert(&altcacertreq);
|
|
|
|
test_tls_discard_cert(&cacertrootreq);
|
|
test_tls_discard_cert(&cacertlevel1areq);
|
|
test_tls_discard_cert(&cacertlevel1breq);
|
|
test_tls_discard_cert(&cacertlevel2areq);
|
|
test_tls_discard_cert(&servercertlevel3areq);
|
|
test_tls_discard_cert(&clientcertlevel2breq);
|
|
unlink(WORKDIR "cacertchain-sess.pem");
|
|
|
|
test_tls_cleanup(KEYFILE);
|
|
rmdir(WORKDIR);
|
|
|
|
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
#else /* ! QCRYPTO_HAVE_TLS_TEST_SUPPORT */
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
#endif /* ! QCRYPTO_HAVE_TLS_TEST_SUPPORT */
|