tests: added server-side verification test

This tests gnutls_certificate_verify_peers2() operation in server
side.

Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org>

2 files changed, 161 insertions, 1 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 075c2728f3..295a81afa1 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -154,7 +154,7 @@ ctests += mini-record-2 simple gnutls_hmac_fast set_pkcs12_cred cert certuniquei
 	 mini-termination mini-x509-cas mini-x509-2 pkcs12_simple tls-pthread \
 	 mini-emsgsize-dtls chainverify-unsorted mini-overhead tls12-ffdhe \
 	 mini-dtls-heartbeat mini-x509-callbacks key-openssl priorities priorities-groups	\
-	 gnutls_x509_privkey_import gnutls_x509_crt_list_import time \
+	 gnutls_x509_privkey_import gnutls_x509_crt_list_import time x509-server-verify \
 	 sign-verify-ext4 tls-neg-ext4-key resume-lifetime memset0 memset1 \
 	 mini-dtls-srtp rsa-encrypt-decrypt mini-loss-time gnutls-strcodes \
 	 mini-record mini-dtls-record handshake-timeout mini-record-range \
diff --git a/tests/x509-server-verify.c b/tests/x509-server-verify.c
new file mode 100644
index 0000000000..0d256bdcec
--- /dev/null
+++ b/tests/x509-server-verify.c
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ * Copyright (C) 2019 Nikos Mavrogiannopoulos
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * This file is part of GnuTLS.
+ *
+ * GnuTLS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuTLS 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/abstract.h>
+#include <gnutls/x509.h>
+#include "utils.h"
+#include "eagain-common.h"
+#include "cert-common.h"
+#include "ocsp-common.h"
+
+/* This tests gnutls_certificate_verify_peers2() to verify a client certificate
+ * by server. */
+
+const char *side;
+
+static void tls_log_func(int level, const char *str)
+{
+	fprintf(stderr, "%s|<%d>| %s", side, level, str);
+}
+
+static void start(const char *prio)
+{
+	int ret;
+	/* Server stuff. */
+	gnutls_certificate_credentials_t serverx509cred;
+	gnutls_session_t server;
+	int sret = GNUTLS_E_AGAIN;
+	/* Client stuff. */
+	gnutls_certificate_credentials_t clientx509cred;
+	gnutls_session_t client;
+	int cret = GNUTLS_E_AGAIN;
+	unsigned index1;
+
+	success("testing %s\n", prio);
+
+	/* General init. */
+	global_init();
+	gnutls_global_set_log_function(tls_log_func);
+	if (debug)
+		gnutls_global_set_log_level(2);
+
+	assert(gnutls_certificate_allocate_credentials(&serverx509cred)>=0);
+	ret = gnutls_certificate_set_x509_key_mem2(serverx509cred, &server_ca3_localhost6_cert,
+						   &server_ca3_key, GNUTLS_X509_FMT_PEM, NULL, 0);
+	assert(ret>=0);
+	index1 = ret;
+
+	ret = gnutls_certificate_set_ocsp_status_request_mem(serverx509cred, &ocsp_ca3_localhost6_unknown_pem,
+							     index1, GNUTLS_X509_FMT_PEM);
+	assert(ret>=0);
+
+	assert(gnutls_init(&server, GNUTLS_SERVER)>=0);
+	gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, serverx509cred);
+	assert(gnutls_priority_set_direct(server,
+				   prio, NULL) >= 0);
+	gnutls_transport_set_push_function(server, server_push);
+	gnutls_transport_set_pull_function(server, server_pull);
+	gnutls_transport_set_ptr(server, server);
+	gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUEST);
+
+	assert(gnutls_certificate_allocate_credentials(&clientx509cred) >= 0);
+	assert(gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca3_cert,
+						     GNUTLS_X509_FMT_PEM) >= 0);
+
+	ret = gnutls_certificate_set_x509_key_mem2(clientx509cred, &cli_ca3_cert_chain,
+						   &cli_ca3_key, GNUTLS_X509_FMT_PEM, NULL, 0);
+	assert(ret>=0);
+
+	assert(gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca3_cert,
+						     GNUTLS_X509_FMT_PEM) >= 0);
+
+
+	assert(gnutls_init(&client, GNUTLS_CLIENT) >= 0);
+
+	assert(gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
+				      clientx509cred) >= 0);
+
+	assert(gnutls_priority_set_direct(client, prio, NULL)>=0);
+	gnutls_transport_set_push_function(client, client_push);
+	gnutls_transport_set_pull_function(client, client_pull);
+	gnutls_transport_set_ptr(client, client);
+
+	HANDSHAKE(client, server);
+
+	/* check verify peers in server side */
+	{
+		unsigned status;
+
+		ret = gnutls_certificate_verify_peers2(server, &status);
+		if (ret < 0) {
+			fail("could not verify client certificate: %s\n",
+				gnutls_strerror(ret));
+		}
+
+		if (status == 0)
+			fail("No CAs present but succeeded!\n");
+
+		assert(gnutls_certificate_set_x509_trust_mem(serverx509cred, &ca3_cert,
+							     GNUTLS_X509_FMT_PEM) >= 0);
+
+		ret = gnutls_certificate_verify_peers2(server, &status);
+		if (ret < 0) {
+			fail("could not verify client certificate: %s\n",
+				gnutls_strerror(ret));
+		}
+
+		if (status != 0)
+			fail("Verification should have succeeded!\n");
+	}
+
+	gnutls_bye(client, GNUTLS_SHUT_RDWR);
+	gnutls_bye(server, GNUTLS_SHUT_RDWR);
+
+	gnutls_deinit(client);
+	gnutls_deinit(server);
+
+	gnutls_certificate_free_credentials(serverx509cred);
+	gnutls_certificate_free_credentials(clientx509cred);
+
+	gnutls_global_deinit();
+
+	reset_buffers();
+}
+
+void doit(void)
+{
+	start("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.3");
+	start("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.2");
+	start("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.1");
+	start("NORMAL");
+}