/* * QEMU I/O channel TLS test * * 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 2.1 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 "qemu/osdep.h" #include "crypto-tls-x509-helpers.h" #include "io/channel-tls.h" #include "io/channel-socket.h" #include "io-channel-helpers.h" #include "crypto/init.h" #include "crypto/tlscredsx509.h" #include "qemu/acl.h" #include "qom/object_interfaces.h" #ifdef QCRYPTO_HAVE_TLS_TEST_SUPPORT #define WORKDIR "tests/test-io-channel-tls-work/" #define KEYFILE WORKDIR "key-ctx.pem" struct QIOChannelTLSTestData { const char *servercacrt; const char *clientcacrt; const char *servercrt; const char *clientcrt; bool expectServerFail; bool expectClientFail; const char *hostname; const char *const *wildcards; }; struct QIOChannelTLSHandshakeData { bool finished; bool failed; }; static void test_tls_handshake_done(Object *source, Error *err, gpointer opaque) { struct QIOChannelTLSHandshakeData *data = opaque; data->finished = true; data->failed = err != NULL; } static QCryptoTLSCreds *test_tls_creds_create(QCryptoTLSCredsEndpoint endpoint, const char *certdir, Error **errp) { Object *parent = object_get_objects_root(); Object *creds = object_new_with_props( TYPE_QCRYPTO_TLS_CREDS_X509, parent, (endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER ? "testtlscredsserver" : "testtlscredsclient"), errp, "endpoint", (endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER ? "server" : "client"), "dir", certdir, "verify-peer", "yes", /* We skip initial sanity checks here because we * want to make sure that problems are being * detected at the TLS session validation stage, * and the test-crypto-tlscreds test already * validate the sanity check code. */ "sanity-check", "no", NULL ); if (*errp) { return NULL; } return QCRYPTO_TLS_CREDS(creds); } /* * This tests validation checking of peer certificates * * This is replicating the checks that are done for an * active TLS session after handshake completes. To * simulate that we create our TLS contexts, skipping * sanity checks. When then get a socketpair, and * initiate a TLS session across them. Finally do * do actual cert validation tests */ static void test_io_channel_tls(const void *opaque) { struct QIOChannelTLSTestData *data = (struct QIOChannelTLSTestData *)opaque; QCryptoTLSCreds *clientCreds; QCryptoTLSCreds *serverCreds; QIOChannelTLS *clientChanTLS; QIOChannelTLS *serverChanTLS; QIOChannelSocket *clientChanSock; QIOChannelSocket *serverChanSock; qemu_acl *acl; const char * const *wildcards; int channel[2]; struct QIOChannelTLSHandshakeData clientHandshake = { false, false }; struct QIOChannelTLSHandshakeData serverHandshake = { false, false }; Error *err = NULL; QIOChannelTest *test; GMainContext *mainloop; /* We'll use this for our fake client-server connection */ g_assert(socketpair(AF_UNIX, SOCK_STREAM, 0, channel) == 0); #define CLIENT_CERT_DIR "tests/test-crypto-tlssession-client/" #define SERVER_CERT_DIR "tests/test-crypto-tlssession-server/" mkdir(CLIENT_CERT_DIR, 0700); mkdir(SERVER_CERT_DIR, 0700); unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT); unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_CERT); unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_KEY); unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT); unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_CERT); unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_KEY); g_assert(link(data->servercacrt, SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT) == 0); g_assert(link(data->servercrt, SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_CERT) == 0); g_assert(link(KEYFILE, SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_KEY) == 0); g_assert(link(data->clientcacrt, CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT) == 0); g_assert(link(data->clientcrt, CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_CERT) == 0); g_assert(link(KEYFILE, CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_KEY) == 0); clientCreds = test_tls_creds_create( QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT, CLIENT_CERT_DIR, &err); g_assert(clientCreds != NULL); serverCreds = test_tls_creds_create( QCRYPTO_TLS_CREDS_ENDPOINT_SERVER, SERVER_CERT_DIR, &err); g_assert(serverCreds != NULL); acl = qemu_acl_init("channeltlsacl"); qemu_acl_reset(acl); wildcards = data->wildcards; while (wildcards && *wildcards) { qemu_acl_append(acl, 0, *wildcards); wildcards++; } clientChanSock = qio_channel_socket_new_fd( channel[0], &err); g_assert(clientChanSock != NULL); serverChanSock = qio_channel_socket_new_fd( channel[1], &err); g_assert(serverChanSock != NULL); /* * We have an evil loop to do the handshake in a single * thread, so we need these non-blocking to avoid deadlock * of ourselves */ qio_channel_set_blocking(QIO_CHANNEL(clientChanSock), false, NULL); qio_channel_set_blocking(QIO_CHANNEL(serverChanSock), false, NULL); /* Now the real part of the test, setup the sessions */ clientChanTLS = qio_channel_tls_new_client( QIO_CHANNEL(clientChanSock), clientCreds, data->hostname, &err); g_assert(clientChanTLS != NULL); serverChanTLS = qio_channel_tls_new_server( QIO_CHANNEL(serverChanSock), serverCreds, "channeltlsacl", &err); g_assert(serverChanTLS != NULL); qio_channel_tls_handshake(clientChanTLS, test_tls_handshake_done, &clientHandshake, NULL); qio_channel_tls_handshake(serverChanTLS, test_tls_handshake_done, &serverHandshake, NULL); /* * Finally we loop around & around doing handshake on each * session until we get an error, or the handshake completes. * This relies on the socketpair being nonblocking to avoid * deadlocking ourselves upon handshake */ mainloop = g_main_context_default(); do { g_main_context_iteration(mainloop, TRUE); } while (!clientHandshake.finished && !serverHandshake.finished); g_assert(clientHandshake.failed == data->expectClientFail); g_assert(serverHandshake.failed == data->expectServerFail); test = qio_channel_test_new(); qio_channel_test_run_threads(test, false, QIO_CHANNEL(clientChanTLS), QIO_CHANNEL(serverChanTLS)); qio_channel_test_validate(test); test = qio_channel_test_new(); qio_channel_test_run_threads(test, true, QIO_CHANNEL(clientChanTLS), QIO_CHANNEL(serverChanTLS)); qio_channel_test_validate(test); unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT); unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_CERT); unlink(SERVER_CERT_DIR QCRYPTO_TLS_CREDS_X509_SERVER_KEY); unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CA_CERT); unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_CERT); unlink(CLIENT_CERT_DIR QCRYPTO_TLS_CREDS_X509_CLIENT_KEY); rmdir(CLIENT_CERT_DIR); rmdir(SERVER_CERT_DIR); object_unparent(OBJECT(serverCreds)); object_unparent(OBJECT(clientCreds)); object_unref(OBJECT(serverChanTLS)); object_unref(OBJECT(clientChanTLS)); object_unref(OBJECT(serverChanSock)); object_unref(OBJECT(clientChanSock)); close(channel[0]); close(channel[1]); } int main(int argc, char **argv) { int ret; g_assert(qcrypto_init(NULL) == 0); module_call_init(MODULE_INIT_QOM); g_test_init(&argc, &argv, NULL); setenv("GNUTLS_FORCE_FIPS_MODE", "2", 1); mkdir(WORKDIR, 0700); test_tls_init(KEYFILE); # define TEST_CHANNEL(name, caCrt, \ serverCrt, clientCrt, \ expectServerFail, expectClientFail, \ hostname, wildcards) \ struct QIOChannelTLSTestData name = { \ caCrt, caCrt, serverCrt, clientCrt, \ expectServerFail, expectClientFail, \ hostname, wildcards \ }; \ g_test_add_data_func("/qio/channel/tls/" # name, \ &name, test_io_channel_tls); /* A perfect CA, perfect client & perfect server */ /* Basic:CA:critical */ TLS_ROOT_REQ(cacertreq, "UK", "qemu 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", "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(clientcertreq, cacertreq, "UK", "qemu", 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); const char *const wildcards[] = { "C=UK,CN=qemu*", NULL, }; TEST_CHANNEL(basic, cacertreq.filename, servercertreq.filename, clientcertreq.filename, false, false, "qemu.org", wildcards); ret = g_test_run(); test_tls_discard_cert(&clientcertreq); test_tls_discard_cert(&servercertreq); test_tls_discard_cert(&cacertreq); 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 */