--- /dev/null
+/*
+ * 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 "crypto/tlscredsx509.h"
+#include "crypto/tlssession.h"
+#include "qom/object_interfaces.h"
+#include "qapi/error.h"
+#include "qemu/sockets.h"
+#include "qemu/acl.h"
+
+#ifdef QCRYPTO_HAVE_TLS_TEST_SUPPORT
+
+#define WORKDIR "tests/test-crypto-tlssession-work/"
+#define KEYFILE WORKDIR "key-ctx.pem"
+
+struct QCryptoTLSSessionTestData {
+ const char *servercacrt;
+ const char *clientcacrt;
+ const char *servercrt;
+ const char *clientcrt;
+ bool expectServerFail;
+ bool expectClientFail;
+ const char *hostname;
+ const char *const *wildcards;
+};
+
+
+static ssize_t testWrite(const char *buf, size_t len, void *opaque)
+{
+ int *fd = opaque;
+
+ return write(*fd, buf, len);
+}
+
+static ssize_t testRead(char *buf, size_t len, void *opaque)
+{
+ int *fd = opaque;
+
+ return read(*fd, buf, len);
+}
+
+static QCryptoTLSCreds *test_tls_creds_create(QCryptoTLSCredsEndpoint endpoint,
+ const char *certdir,
+ Error **errp)
+{
+ Error *err = NULL;
+ 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"),
+ &err,
+ "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 (err) {
+ error_propagate(errp, err);
+ 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. We then get a socketpair, and
+ * initiate a TLS session across them. Finally do
+ * do actual cert validation tests
+ */
+static void test_crypto_tls_session(const void *opaque)
+{
+ struct QCryptoTLSSessionTestData *data =
+ (struct QCryptoTLSSessionTestData *)opaque;
+ QCryptoTLSCreds *clientCreds;
+ QCryptoTLSCreds *serverCreds;
+ QCryptoTLSSession *clientSess = NULL;
+ QCryptoTLSSession *serverSess = NULL;
+ qemu_acl *acl;
+ const char * const *wildcards;
+ int channel[2];
+ bool clientShake = false;
+ bool serverShake = false;
+ Error *err = NULL;
+ int ret;
+
+ /* We'll use this for our fake client-server connection */
+ ret = socketpair(AF_UNIX, SOCK_STREAM, 0, channel);
+ g_assert(ret == 0);
+
+ /*
+ * We have an evil loop to do the handshake in a single
+ * thread, so we need these non-blocking to avoid deadlock
+ * of ourselves
+ */
+ qemu_set_nonblock(channel[0]);
+ qemu_set_nonblock(channel[1]);
+
+#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("tlssessionacl");
+ qemu_acl_reset(acl);
+ wildcards = data->wildcards;
+ while (wildcards && *wildcards) {
+ qemu_acl_append(acl, 0, *wildcards);
+ wildcards++;
+ }
+
+ /* Now the real part of the test, setup the sessions */
+ clientSess = qcrypto_tls_session_new(
+ clientCreds, data->hostname, NULL,
+ QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT, &err);
+ serverSess = qcrypto_tls_session_new(
+ serverCreds, NULL,
+ data->wildcards ? "tlssessionacl" : NULL,
+ QCRYPTO_TLS_CREDS_ENDPOINT_SERVER, &err);
+
+ g_assert(clientSess != NULL);
+ g_assert(serverSess != NULL);
+
+ /* For handshake to work, we need to set the I/O callbacks
+ * to read/write over the socketpair
+ */
+ qcrypto_tls_session_set_callbacks(serverSess,
+ testWrite, testRead,
+ &channel[0]);
+ qcrypto_tls_session_set_callbacks(clientSess,
+ testWrite, testRead,
+ &channel[1]);
+
+ /*
+ * 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
+ */
+ do {
+ int rv;
+ if (!serverShake) {
+ rv = qcrypto_tls_session_handshake(serverSess,
+ &err);
+ g_assert(rv >= 0);
+ if (qcrypto_tls_session_get_handshake_status(serverSess) ==
+ QCRYPTO_TLS_HANDSHAKE_COMPLETE) {
+ serverShake = true;
+ }
+ }
+ if (!clientShake) {
+ rv = qcrypto_tls_session_handshake(clientSess,
+ &err);
+ g_assert(rv >= 0);
+ if (qcrypto_tls_session_get_handshake_status(clientSess) ==
+ QCRYPTO_TLS_HANDSHAKE_COMPLETE) {
+ clientShake = true;
+ }
+ }
+ } while (!clientShake && !serverShake);
+
+
+ /* Finally make sure the server validation does what
+ * we were expecting
+ */
+ if (qcrypto_tls_session_check_credentials(serverSess, &err) < 0) {
+ g_assert(data->expectServerFail);
+ error_free(err);
+ err = NULL;
+ } else {
+ g_assert(!data->expectServerFail);
+ }
+
+ /*
+ * And the same for the client validation check
+ */
+ if (qcrypto_tls_session_check_credentials(clientSess, &err) < 0) {
+ g_assert(data->expectClientFail);
+ error_free(err);
+ err = NULL;
+ } else {
+ g_assert(!data->expectClientFail);
+ }
+
+ 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));
+
+ qcrypto_tls_session_free(serverSess);
+ qcrypto_tls_session_free(clientSess);
+
+ close(channel[0]);
+ close(channel[1]);
+}
+
+
+int main(int argc, char **argv)
+{
+ int ret;
+
+ 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_SESS_REG(name, caCrt, \
+ serverCrt, clientCrt, \
+ expectServerFail, expectClientFail, \
+ hostname, wildcards) \
+ struct QCryptoTLSSessionTestData name = { \
+ caCrt, caCrt, serverCrt, clientCrt, \
+ expectServerFail, expectClientFail, \
+ hostname, wildcards \
+ }; \
+ g_test_add_data_func("/qcrypto/tlssession/" # name, \
+ &name, test_crypto_tls_session); \
+
+
+# define TEST_SESS_REG_EXT(name, serverCaCrt, clientCaCrt, \
+ serverCrt, clientCrt, \
+ expectServerFail, expectClientFail, \
+ hostname, wildcards) \
+ struct QCryptoTLSSessionTestData name = { \
+ serverCaCrt, clientCaCrt, serverCrt, clientCrt, \
+ expectServerFail, expectClientFail, \
+ hostname, wildcards \
+ }; \
+ g_test_add_data_func("/qcrypto/tlssession/" # name, \
+ &name, test_crypto_tls_session); \
+
+ /* 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_ROOT_REQ(altcacertreq,
+ "UK", "qemu CA 1", NULL, NULL, NULL, NULL,
+ true, true, true,
+ false, false, 0,
+ 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);
+
+ TLS_CERT_REQ(clientcertaltreq, altcacertreq,
+ "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);
+
+ TEST_SESS_REG(basicca, cacertreq.filename,
+ servercertreq.filename, clientcertreq.filename,
+ false, false, "qemu.org", NULL);
+ TEST_SESS_REG_EXT(differentca, cacertreq.filename,
+ altcacertreq.filename, servercertreq.filename,
+ clientcertaltreq.filename, true, true, "qemu.org", NULL);
+
+
+ /* When an altname is set, the CN is ignored, so it must be duplicated
+ * as an altname for it to match */
+ TLS_CERT_REQ(servercertalt1req, cacertreq,
+ "UK", "qemu.org", "www.qemu.org", "qemu.org",
+ "192.168.122.1", "fec0::dead:beaf",
+ true, true, false,
+ true, true,
+ GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
+ true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
+ 0, 0);
+ /* This intentionally doesn't replicate */
+ TLS_CERT_REQ(servercertalt2req, cacertreq,
+ "UK", "qemu.org", "www.qemu.org", "wiki.qemu.org",
+ "192.168.122.1", "fec0::dead:beaf",
+ true, true, false,
+ true, true,
+ GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT,
+ true, true, GNUTLS_KP_TLS_WWW_SERVER, NULL,
+ 0, 0);
+
+ TEST_SESS_REG(altname1, cacertreq.filename,
+ servercertalt1req.filename, clientcertreq.filename,
+ false, false, "qemu.org", NULL);
+ TEST_SESS_REG(altname2, cacertreq.filename,
+ servercertalt1req.filename, clientcertreq.filename,
+ false, false, "www.qemu.org", NULL);
+ TEST_SESS_REG(altname3, cacertreq.filename,
+ servercertalt1req.filename, clientcertreq.filename,
+ false, true, "wiki.qemu.org", NULL);
+
+ TEST_SESS_REG(altname4, cacertreq.filename,
+ servercertalt2req.filename, clientcertreq.filename,
+ false, true, "qemu.org", NULL);
+ TEST_SESS_REG(altname5, cacertreq.filename,
+ servercertalt2req.filename, clientcertreq.filename,
+ false, false, "www.qemu.org", NULL);
+ TEST_SESS_REG(altname6, cacertreq.filename,
+ servercertalt2req.filename, clientcertreq.filename,
+ false, false, "wiki.qemu.org", NULL);
+
+ const char *const wildcards1[] = {
+ "C=UK,CN=dogfood",
+ NULL,
+ };
+ const char *const wildcards2[] = {
+ "C=UK,CN=qemu",
+ NULL,
+ };
+ const char *const wildcards3[] = {
+ "C=UK,CN=dogfood",
+ "C=UK,CN=qemu",
+ NULL,
+ };
+ const char *const wildcards4[] = {
+ "C=UK,CN=qemustuff",
+ NULL,
+ };
+ const char *const wildcards5[] = {
+ "C=UK,CN=qemu*",
+ NULL,
+ };
+ const char *const wildcards6[] = {
+ "C=UK,CN=*emu*",
+ NULL,
+ };
+
+ TEST_SESS_REG(wildcard1, cacertreq.filename,
+ servercertreq.filename, clientcertreq.filename,
+ true, false, "qemu.org", wildcards1);
+ TEST_SESS_REG(wildcard2, cacertreq.filename,
+ servercertreq.filename, clientcertreq.filename,
+ false, false, "qemu.org", wildcards2);
+ TEST_SESS_REG(wildcard3, cacertreq.filename,
+ servercertreq.filename, clientcertreq.filename,
+ false, false, "qemu.org", wildcards3);
+ TEST_SESS_REG(wildcard4, cacertreq.filename,
+ servercertreq.filename, clientcertreq.filename,
+ true, false, "qemu.org", wildcards4);
+ TEST_SESS_REG(wildcard5, cacertreq.filename,
+ servercertreq.filename, clientcertreq.filename,
+ false, false, "qemu.org", wildcards5);
+ TEST_SESS_REG(wildcard6, cacertreq.filename,
+ servercertreq.filename, clientcertreq.filename,
+ false, false, "qemu.org", wildcards6);
+
+ TLS_ROOT_REQ(cacertrootreq,
+ "UK", "qemu 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", "qemu 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", "qemu 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", "qemu 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", "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 */
Code Review / kvmfornfv.git / blobdiff