Backported new verification functions for clients from 3.5.x branchbackport-new-verification-functions

The major use-case for the TLS protocol is verification of PKIX
certificates. However, certificate verification support while is
similar for almost all projects it requires around 100 lines of code
(a callback) to be duplicated to all applications. That patch
set gets rid of the callback and simplifies certificate verification
support, by introducing a very simple API; one that would accept
the session and the hostname only.

Resolves #27

1 files changed, 561 insertions, 0 deletions

diff --git a/tests/auto-verify.c b/tests/auto-verify.c
new file mode 100644
index 0000000000..afd489105d
--- /dev/null
+++ b/tests/auto-verify.c
@@ -0,0 +1,561 @@
+/*
+ * Copyright (C) 2008-2012 Free Software Foundation, Inc.
+ *
+ * Author: Simon Josefsson
+ *
+ * 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 General Public License
+ * along with GnuTLS; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+#include "utils.h"
+#include "eagain-common.h"
+
+/* This tests gnutls_certificate_set_x509_key() */
+
+const char *side;
+
+static void tls_log_func(int level, const char *str)
+{
+	fprintf(stderr, "%s|<%d>| %s", side, level, str);
+}
+
+static unsigned char ca_cert_pem[] =
+"-----BEGIN CERTIFICATE-----\n"
+"MIIC4DCCAcigAwIBAgIBADANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwRDQS0w\n"
+"MCIYDzIwMTQwNDA5MDgwMjM0WhgPOTk5OTEyMzEyMzU5NTlaMA8xDTALBgNVBAMT\n"
+"BENBLTAwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCuLSye8pe3yWKZ\n"
+"Yp7tLQ4ImwLqqh1aN7x9pc5spLDj6krVArzkyyYDcWvtQNDjErEfLUrZZrCc4aIl\n"
+"oU1Ghb92kI8ofZnHFbj3z5zdcWqiPppj5Y+hRdc4LszTWb+itrD9Ht/D67EK+m7W\n"
+"ev6xxUdyiBYUmb2O3CnPZpUVshMRtEe45EDGI5hUgL2n4Msj41htTq8hATYPXgoq\n"
+"gQUyXFpKAX5XDCyOG+FC6jmEys7UCRYv3SCl7TPWJ4cm+lHcFI2/OTOCBvMlKN2J\n"
+"mWCdfnudZldqthin+8fR9l4nbuutOfPNt1Dj9InDzWZ1W/o4LrjKa7fsvszj2Z5A\n"
+"Fn+xN/4zAgMBAAGjQzBBMA8GA1UdEwEB/wQFMAMBAf8wDwYDVR0PAQH/BAUDAwcE\n"
+"ADAdBgNVHQ4EFgQUwRHwbXyPosKNNkBiZduEwL5ZCwswDQYJKoZIhvcNAQELBQAD\n"
+"ggEBAEKr0b7WoJL+L8St/LEITU/i7FwFrCP6DkbaNo0kgzPmwnvNmw88MLI6UKwE\n"
+"JecnjFhurRBBZ4FA85ucNyizeBnuXqFcyJ20+XziaXGPKV/ugKyYv9KBoTYkQOCh\n"
+"nbOthmDqjvy2UYQj0BU2dOywkjUKWhYHEZLBpZYck0Orynxydwil5Ncsz4t3smJw\n"
+"ahzCW8SzBFTiO99qQBCH2RH1PbUYzfAnJxZS2VScpcqlu9pr+Qv7r8E3p9qHxnQM\n"
+"gO5laWO6lc13rNsbZRrtlCvacsiDSuDnS8EVXm0ih4fAntpRHacPbXZbOPQqJ/+1\n"
+"G7/qJ6cDC/9aW+fU80ogTkAoFg4=\n"
+"-----END CERTIFICATE-----\n";
+
+const gnutls_datum_t ca_cert = { ca_cert_pem,
+	sizeof(ca_cert_pem)
+};
+
+static unsigned char server_cert_pem[] =
+"-----BEGIN CERTIFICATE-----\n"
+"MIIDOjCCAiKgAwIBAgIMU0T+mwoDu5uVLKeeMA0GCSqGSIb3DQEBCwUAMA8xDTAL\n"
+"BgNVBAMTBENBLTEwIhgPMjAxNDA0MDkwODAyMzVaGA85OTk5MTIzMTIzNTk1OVow\n"
+"EzERMA8GA1UEAxMIc2VydmVyLTIwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK\n"
+"AoIBAQDXfvgsMWXHNf3iUaEoZSNztZZr6+UdBkoUhbdWJDR+GwR+GHfnYaYHsuqb\n"
+"bNEl/QFI+8Jeth0SmG7TNB+b/AlHFoBm8TwBt7H+Mn6AQIdo872Vs262UkHgbZN6\n"
+"dEQeRCgiXmlsOVe+MVpf79Xi32MYz1FZ/ueS6tr8sIDhECThIZkq2eulVjAV86N2\n"
+"zQ72Ml1k8rPw4SdK5OFhcXNdXr6CsAol8MmiORKDF0iAZxwtFVc00nBGqQC5rwrN\n"
+"3A8czH5TsvyvrcW0mwV2XOVvZM5kFM1T/X0jF6RQHiGGFBYK4s6JZxSSOhJMFYYh\n"
+"koPEKsuVZdmBJ2yTTdGumHZfG9LDAgMBAAGjgY0wgYowDAYDVR0TAQH/BAIwADAU\n"
+"BgNVHREEDTALgglsb2NhbGhvc3QwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDwYDVR0P\n"
+"AQH/BAUDAwegADAdBgNVHQ4EFgQURXiN5VD5vgqAprhd/37ldGKv4/4wHwYDVR0j\n"
+"BBgwFoAU8MUzmkotjSmVa5r1ejMkMQ6BiZYwDQYJKoZIhvcNAQELBQADggEBABSU\n"
+"cmMX0nGeg43itPnLjSTIUuYEamRhfsFDwgRYQn5w+BcFG1p0scBRxLAShUEb9A2A\n"
+"oEJV4rQDpCn9bcMrMHhTCR5sOlLh/2o9BROjK0+DjQLDkooQK5xa+1GYEiy6QYCx\n"
+"QjdCCnMhHh24oP2/vUggRKhevvD2QQFKcCDT6n13RFYm+HX82gIh6SAtRs0oahY5\n"
+"k9CM9TYRPzXy+tQqhZisJzc8BLTW/XA97kAJW6+hUhPir7AYR6BKJhNeIxcN/yMy\n"
+"jsHzWDLezip/8q+kzw658V5e40hne7ZaJycGUaUdLVnJcpNtBgGE82TRS/XZSQKF\n"
+"fpy8FLGcJynqlIOzdKs=\n"
+"-----END CERTIFICATE-----\n"
+"-----BEGIN CERTIFICATE-----\n"
+"MIIDATCCAemgAwIBAgIBATANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwRDQS0w\n"
+"MCIYDzIwMTQwNDA5MDgwMjM0WhgPOTk5OTEyMzEyMzU5NTlaMA8xDTALBgNVBAMT\n"
+"BENBLTEwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDZq3sA+mjFadII\n"
+"EMDHfj1fYh+UOUSa8c814E9NfCdYZ9Z11BmPpBeR5mXV12j1DKjkTlqTUL7s4lVR\n"
+"RKfyAdCpQIfeXHDeTYYUq2uBnbi5YMG5Y+WbCiYacgRU3IypYrSzaeh1mY7GiEFe\n"
+"U/NaImHLCf+TdAvTJ3Fo0QPe5QN2Lrv6l//cqOv7enZ91KRWxClDMM6EAr+C/7dk\n"
+"rOTXRrCuH/e/KVBXEJ/YeSYPmBIwolGktRrGdsVagdqYArr4dhJ7VThIVRUX1Ijl\n"
+"THCLstI/LuD8WkDccU3ZSdm47f2U43p/+rSO0MiNOXiaskeK56G/9DbJEeETUbzm\n"
+"/B2712MVAgMBAAGjZDBiMA8GA1UdEwEB/wQFMAMBAf8wDwYDVR0PAQH/BAUDAwcE\n"
+"ADAdBgNVHQ4EFgQU8MUzmkotjSmVa5r1ejMkMQ6BiZYwHwYDVR0jBBgwFoAUwRHw\n"
+"bXyPosKNNkBiZduEwL5ZCwswDQYJKoZIhvcNAQELBQADggEBACKxBPj9u1t52uIF\n"
+"eQ2JPb8/u+MBttvSLo0qPKXwpc4q8hNclh66dpqGWiF0iSumsKyKU54r6CIF9Ikm\n"
+"t1V1GR9Ll4iTnz3NdIt1w3ns8rSlU5O/dgKysK/1C/5xJWEUYtEO5mnyi4Zaf8FB\n"
+"hKmQ1aWF5dTB81PVAQxyCiFEnH7YumK7pJeIpnCOPIqLZLUHfrTUeL8zONF4i5Sb\n"
+"7taZ8SQ6b7IaioU+NJ50uT2wy34lsyvCWf76Azezv9bggkdNDo/7ktMgsfRrSyM8\n"
+"+MVob5ePGTjKx5yMy/sy2vUkkefwW3RiEss/y2JRb8Hw7nDlA9ttilYKFwGFwRvw\n"
+"KRsXqo8=\n"
+"-----END CERTIFICATE-----\n";
+
+const gnutls_datum_t server_cert = { server_cert_pem,
+	sizeof(server_cert_pem)
+};
+
+static unsigned char server_key_pem[] =
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIIEpAIBAAKCAQEA1374LDFlxzX94lGhKGUjc7WWa+vlHQZKFIW3ViQ0fhsEfhh3\n"
+"52GmB7Lqm2zRJf0BSPvCXrYdEphu0zQfm/wJRxaAZvE8Abex/jJ+gECHaPO9lbNu\n"
+"tlJB4G2TenREHkQoIl5pbDlXvjFaX+/V4t9jGM9RWf7nkura/LCA4RAk4SGZKtnr\n"
+"pVYwFfOjds0O9jJdZPKz8OEnSuThYXFzXV6+grAKJfDJojkSgxdIgGccLRVXNNJw\n"
+"RqkAua8KzdwPHMx+U7L8r63FtJsFdlzlb2TOZBTNU/19IxekUB4hhhQWCuLOiWcU\n"
+"kjoSTBWGIZKDxCrLlWXZgSdsk03Rrph2XxvSwwIDAQABAoIBAB7trDS7ij4DM8MN\n"
+"sDGaAnKS91nZ63I0+uDjKCMG4znOKuDmJh9hVnD4bs+L2KC5JTwSVh09ygJnOlC5\n"
+"xGegzrwTMK6VpOUiNjujh6BkooqfoPAhZpxoReguEeKbWUN2yMPWBQ9xU3SKpMvs\n"
+"IiiDozdmWeiuuxHM/00REA49QO3Gnx2logeB+fcvXXD1UiZV3x0xxSApiJt1sr2r\n"
+"NmqSyGdNUgpmnTP8zbKnDaRe5Wj4tj1TCTLE/HZ0tzdRuwlkIqvcpGg1LMtKm5N8\n"
+"xIWjTGMFwGjG+OF8LGqHLH+28pI3iMB6QqO2YLwOp+WZKImKP3+Dp3s8lCw8t8cm\n"
+"q5/Qc9ECgYEA2xwxm+pFkrFmZNLCakP/6S5AZqpfSBRUlF/uX2pBKO7o6I6aOV9o\n"
+"zq2QWYIZfdyD+9MvAFUQ36sWfTVWpGA34WGtsGtcRRygKKTigpJHvBldaPxiuYuk\n"
+"xbS54nWUdix/JzyQAy22xJXlp4XJvtFJjHhA2td0XA7tfng9n8jmvEUCgYEA+8cA\n"
+"uFIQFbaZ2y6pnOvlVj8OH0f1hZa9M+3q01fWy1rnDAsLrIzJy8TZnBtpDwy9lAun\n"
+"Sa6wzu6qeHmF17xwk5U7BCyK2Qj/9KhRLg1mnDebQ/CiLSAaJVnrYFp9Du96fTkN\n"
+"ollvbFiGF92QwPTDf2f1gHZQEPwa+f/ox37ad2cCgYEAwMgXpfUD7cOEMeV2BQV7\n"
+"XnDBXRM97i9lE38sPmtAlYFPD36Yly4pCt+PCBH9181zmtf+nK47wG/Jw7RwXQQD\n"
+"ZpwItBZiArTi/Z/FY9jMoOU4WKznOBVzjjgq7ONDEo6n+Z/BnepUyraQb0q5bNi7\n"
+"e4o6ldHHoU/JCeNFZRbgXHkCgYA6vJU9at+XwS6phHxLQHkTIsivoYD0tlLTX4it\n"
+"30sby8wk8hq6GWomYHkHwxlCSo2bkRBozxkuXV1ll6wSxUJaG7FV6vJFaaUUtYOi\n"
+"w7uRbCOLuQKMlnWjCxQvOUz9g/7GYd39ZvHoi8pUnPrdGPzWpzEN1AwfukCs2/e5\n"
+"Oq3KtwKBgQCkHmDU8h0kOfN28f8ZiyjJemQMNoOGiJqnGexaKvsRd+bt4H+7DsWQ\n"
+"OnyKm/oR0wCCSmFM5aQc6GgzPD7orueKVYHChbY7HLTWKRHNs6Rlk+6hXJvOld0i\n"
+"Cl7KqL2x2ibGMtt4LtSntdzWqa87N7vCWMSTmvd8uLgflBs33xUIiQ==\n"
+"-----END RSA PRIVATE KEY-----\n";
+
+static unsigned char cert_pem[] =
+    "-----BEGIN CERTIFICATE-----\n"
+    "MIICHjCCAYmgAwIBAgIERiYdNzALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
+    "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTI3WhcNMDgwNDE3MTMyOTI3WjAdMRsw\n"
+    "GQYDVQQDExJHbnVUTFMgdGVzdCBjbGllbnQwgZwwCwYJKoZIhvcNAQEBA4GMADCB\n"
+    "iAKBgLtmQ/Xyxde2jMzF3/WIO7HJS2oOoa0gUEAIgKFPXKPQ+GzP5jz37AR2ExeL\n"
+    "ZIkiW8DdU3w77XwEu4C5KL6Om8aOoKUSy/VXHqLnu7czSZ/ju0quak1o/8kR4jKN\n"
+    "zj2AC41179gAgY8oBAOgIo1hBAf6tjd9IQdJ0glhaZiQo1ipAgMBAAGjdjB0MAwG\n"
+    "A1UdEwEB/wQCMAAwEwYDVR0lBAwwCgYIKwYBBQUHAwIwDwYDVR0PAQH/BAUDAweg\n"
+    "ADAdBgNVHQ4EFgQUTLkKm/odNON+3svSBxX+odrLaJEwHwYDVR0jBBgwFoAU6Twc\n"
+    "+62SbuYGpFYsouHAUyfI8pUwCwYJKoZIhvcNAQEFA4GBALujmBJVZnvaTXr9cFRJ\n"
+    "jpfc/3X7sLUsMvumcDE01ls/cG5mIatmiyEU9qI3jbgUf82z23ON/acwJf875D3/\n"
+    "U7jyOsBJ44SEQITbin2yUeJMIm1tievvdNXBDfW95AM507ShzP12sfiJkJfjjdhy\n"
+    "dc8Siq5JojruiMizAf0pA7in\n" "-----END CERTIFICATE-----\n";
+const gnutls_datum_t cli_cert = { cert_pem, sizeof(cert_pem) - 1};
+
+static unsigned char key_pem[] =
+    "-----BEGIN RSA PRIVATE KEY-----\n"
+    "MIICXAIBAAKBgQC7ZkP18sXXtozMxd/1iDuxyUtqDqGtIFBACIChT1yj0Phsz+Y8\n"
+    "9+wEdhMXi2SJIlvA3VN8O+18BLuAuSi+jpvGjqClEsv1Vx6i57u3M0mf47tKrmpN\n"
+    "aP/JEeIyjc49gAuNde/YAIGPKAQDoCKNYQQH+rY3fSEHSdIJYWmYkKNYqQIDAQAB\n"
+    "AoGADpmARG5CQxS+AesNkGmpauepiCz1JBF/JwnyiX6vEzUh0Ypd39SZztwrDxvF\n"
+    "PJjQaKVljml1zkJpIDVsqvHdyVdse8M+Qn6hw4x2p5rogdvhhIL1mdWo7jWeVJTF\n"
+    "RKB7zLdMPs3ySdtcIQaF9nUAQ2KJEvldkO3m/bRJFEp54k0CQQDYy+RlTmwRD6hy\n"
+    "7UtMjR0H3CSZJeQ8svMCxHLmOluG9H1UKk55ZBYfRTsXniqUkJBZ5wuV1L+pR9EK\n"
+    "ca89a+1VAkEA3UmBelwEv2u9cAU1QjKjmwju1JgXbrjEohK+3B5y0ESEXPAwNQT9\n"
+    "TrDM1m9AyxYTWLxX93dI5QwNFJtmbtjeBQJARSCWXhsoaDRG8QZrCSjBxfzTCqZD\n"
+    "ZXtl807ymCipgJm60LiAt0JLr4LiucAsMZz6+j+quQbSakbFCACB8SLV1QJBAKZQ\n"
+    "YKf+EPNtnmta/rRKKvySsi3GQZZN+Dt3q0r094XgeTsAqrqujVNfPhTMeP4qEVBX\n"
+    "/iVX2cmMTSh3w3z8MaECQEp0XJWDVKOwcTW6Ajp9SowtmiZ3YDYo1LF9igb4iaLv\n"
+    "sWZGfbnU3ryjvkb6YuFjgtzbZDZHWQCo8/cOtOBmPdk=\n"
+    "-----END RSA PRIVATE KEY-----\n";
+const gnutls_datum_t cli_key = { key_pem, sizeof(key_pem) - 1};
+
+const gnutls_datum_t server_key = { server_key_pem,
+	sizeof(server_key_pem)
+};
+
+static
+void test_failure(void)
+{
+	int exit_code = EXIT_SUCCESS;
+	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;
+	gnutls_x509_crt_t *crts;
+	unsigned int crts_size;
+	unsigned i;
+	gnutls_typed_vdata_st vdata[2];
+	gnutls_x509_privkey_t pkey;
+	unsigned status;
+
+	to_server_len = 0;
+	to_client_len = 0;
+
+	ret = gnutls_x509_crt_list_import2(&crts, &crts_size, &server_cert, GNUTLS_X509_FMT_PEM,
+			GNUTLS_X509_CRT_LIST_FAIL_IF_UNSORTED);
+	if (ret < 0) {
+		fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	ret = gnutls_x509_privkey_init(&pkey);
+	if (ret < 0) {
+		fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	ret =
+	    gnutls_x509_privkey_import(pkey, &server_key,
+				       GNUTLS_X509_FMT_PEM);
+	if (ret < 0) {
+		fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	/* Init server */
+	gnutls_certificate_allocate_credentials(&serverx509cred);
+	gnutls_certificate_set_x509_key(serverx509cred, crts, crts_size, pkey);
+	gnutls_x509_privkey_deinit(pkey);
+	for (i=0;i<crts_size;i++)
+		gnutls_x509_crt_deinit(crts[i]);
+	gnutls_free(crts);
+
+	gnutls_init(&server, GNUTLS_SERVER);
+	gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
+			       serverx509cred);
+	gnutls_priority_set_direct(server,
+				   "NORMAL:-CIPHER-ALL:+AES-128-GCM",
+				   NULL);
+	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);
+
+	/* Init client */
+	/* Init client */
+	ret = gnutls_certificate_allocate_credentials(&clientx509cred);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca_cert, GNUTLS_X509_FMT_PEM);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_certificate_set_x509_key_mem(clientx509cred,
+					    	  &cli_cert, &cli_key,
+					    	  GNUTLS_X509_FMT_PEM);
+
+	ret = gnutls_init(&client, GNUTLS_CLIENT);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
+			       clientx509cred);
+	if (ret < 0)
+		exit(1);
+
+	gnutls_priority_set_direct(client, "NORMAL", NULL);
+	gnutls_transport_set_push_function(client, client_push);
+	gnutls_transport_set_pull_function(client, client_pull);
+	gnutls_transport_set_ptr(client, client);
+
+	memset(vdata, 0, sizeof(vdata));
+
+	/* check with wrong hostname */
+	vdata[0].type = GNUTLS_DT_DNS_HOSTNAME;
+	vdata[0].data = (void*)"localhost1";
+
+	vdata[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
+	vdata[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
+
+	gnutls_session_set_verify_cert2(client, vdata, 2, 0);
+
+	HANDSHAKE_EXPECT(client, server, GNUTLS_E_CERTIFICATE_VERIFICATION_ERROR, GNUTLS_E_AGAIN);
+
+	status = gnutls_session_get_verify_cert_status(client);
+
+	if (status == 0) {
+		fail("should not have accepted!\n");
+		exit(1);
+	}
+
+	gnutls_deinit(client);
+	gnutls_deinit(server);
+
+	gnutls_certificate_free_credentials(serverx509cred);
+	gnutls_certificate_free_credentials(clientx509cred);
+
+	if (debug > 0) {
+		if (exit_code == 0)
+			fprintf(stderr, "%s: Self-test successful", __func__);
+		else
+			fprintf(stderr, "%s: Self-test failed", __func__);
+	}
+}
+
+static
+void test_success1(void)
+{
+	int exit_code = EXIT_SUCCESS;
+	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;
+	gnutls_x509_crt_t *crts;
+	unsigned int crts_size;
+	unsigned i;
+	gnutls_typed_vdata_st vdata[2];
+	gnutls_x509_privkey_t pkey;
+	unsigned status;
+
+	to_server_len = 0;
+	to_client_len = 0;
+
+	ret = gnutls_x509_crt_list_import2(&crts, &crts_size, &server_cert, GNUTLS_X509_FMT_PEM,
+			GNUTLS_X509_CRT_LIST_FAIL_IF_UNSORTED);
+	if (ret < 0) {
+		fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	ret = gnutls_x509_privkey_init(&pkey);
+	if (ret < 0) {
+		fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	ret =
+	    gnutls_x509_privkey_import(pkey, &server_key,
+				       GNUTLS_X509_FMT_PEM);
+	if (ret < 0) {
+		fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	/* Init server */
+	gnutls_certificate_allocate_credentials(&serverx509cred);
+	gnutls_certificate_set_x509_key(serverx509cred, crts, crts_size, pkey);
+	gnutls_x509_privkey_deinit(pkey);
+	for (i=0;i<crts_size;i++)
+		gnutls_x509_crt_deinit(crts[i]);
+	gnutls_free(crts);
+
+	gnutls_init(&server, GNUTLS_SERVER);
+	gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
+			       serverx509cred);
+	gnutls_priority_set_direct(server,
+				   "NORMAL:-CIPHER-ALL:+AES-128-GCM",
+				   NULL);
+	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);
+
+	/* Init client */
+	/* Init client */
+	ret = gnutls_certificate_allocate_credentials(&clientx509cred);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca_cert, GNUTLS_X509_FMT_PEM);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_certificate_set_x509_key_mem(clientx509cred,
+					    	  &cli_cert, &cli_key,
+					    	  GNUTLS_X509_FMT_PEM);
+
+	ret = gnutls_init(&client, GNUTLS_CLIENT);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
+			       clientx509cred);
+	if (ret < 0)
+		exit(1);
+
+	gnutls_priority_set_direct(client, "NORMAL", NULL);
+	gnutls_transport_set_push_function(client, client_push);
+	gnutls_transport_set_pull_function(client, client_pull);
+	gnutls_transport_set_ptr(client, client);
+
+	memset(vdata, 0, sizeof(vdata));
+
+	/* check with wrong hostname */
+	vdata[0].type = GNUTLS_DT_DNS_HOSTNAME;
+	vdata[0].data = (void*)"localhost";
+
+	vdata[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
+	vdata[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
+
+	gnutls_session_set_verify_cert2(client, vdata, 2, 0);
+
+	HANDSHAKE(client, server);
+
+	status = gnutls_session_get_verify_cert_status(client);
+
+	if (status != 0) {
+		fail("%s: should have accepted: %u!\n", __func__, status);
+		exit(1);
+	}
+
+	gnutls_deinit(client);
+	gnutls_deinit(server);
+
+	gnutls_certificate_free_credentials(serverx509cred);
+	gnutls_certificate_free_credentials(clientx509cred);
+
+	if (debug > 0) {
+		if (exit_code == 0)
+			fprintf(stderr, "%s: Self-test successful", __func__);
+		else
+			fprintf(stderr, "%s: Self-test failed", __func__);
+	}
+}
+
+static
+void test_success2(void)
+{
+	int exit_code = EXIT_SUCCESS;
+	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;
+	gnutls_x509_crt_t *crts;
+	unsigned int crts_size;
+	unsigned i;
+	gnutls_x509_privkey_t pkey;
+	unsigned status;
+
+	to_server_len = 0;
+	to_client_len = 0;
+
+	ret = gnutls_x509_crt_list_import2(&crts, &crts_size, &server_cert, GNUTLS_X509_FMT_PEM,
+			GNUTLS_X509_CRT_LIST_FAIL_IF_UNSORTED);
+	if (ret < 0) {
+		fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	ret = gnutls_x509_privkey_init(&pkey);
+	if (ret < 0) {
+		fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	ret =
+	    gnutls_x509_privkey_import(pkey, &server_key,
+				       GNUTLS_X509_FMT_PEM);
+	if (ret < 0) {
+		fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	/* Init server */
+	gnutls_certificate_allocate_credentials(&serverx509cred);
+	gnutls_certificate_set_x509_key(serverx509cred, crts, crts_size, pkey);
+	gnutls_x509_privkey_deinit(pkey);
+	for (i=0;i<crts_size;i++)
+		gnutls_x509_crt_deinit(crts[i]);
+	gnutls_free(crts);
+
+	gnutls_init(&server, GNUTLS_SERVER);
+	gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
+			       serverx509cred);
+	gnutls_priority_set_direct(server,
+				   "NORMAL:-CIPHER-ALL:+AES-128-GCM",
+				   NULL);
+	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);
+
+	/* Init client */
+	/* Init client */
+	ret = gnutls_certificate_allocate_credentials(&clientx509cred);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca_cert, GNUTLS_X509_FMT_PEM);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_certificate_set_x509_key_mem(clientx509cred,
+					    	  &cli_cert, &cli_key,
+					    	  GNUTLS_X509_FMT_PEM);
+
+	ret = gnutls_init(&client, GNUTLS_CLIENT);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
+			       clientx509cred);
+	if (ret < 0)
+		exit(1);
+
+	gnutls_priority_set_direct(client, "NORMAL", NULL);
+	gnutls_transport_set_push_function(client, client_push);
+	gnutls_transport_set_pull_function(client, client_pull);
+	gnutls_transport_set_ptr(client, client);
+
+	gnutls_session_set_verify_cert(client, "localhost", 0);
+
+	HANDSHAKE(client, server);
+
+	status = gnutls_session_get_verify_cert_status(client);
+
+	if (status != 0) {
+		fail("%s: should have accepted: %u!\n", __func__, status);
+		exit(1);
+	}
+
+	gnutls_deinit(client);
+	gnutls_deinit(server);
+
+	gnutls_certificate_free_credentials(serverx509cred);
+	gnutls_certificate_free_credentials(clientx509cred);
+
+	if (debug > 0) {
+		if (exit_code == 0)
+			fprintf(stderr, "%s: Self-test successful", __func__);
+		else
+			fprintf(stderr, "%s: Self-test failed", __func__);
+	}
+}
+
+void doit(void)
+{
+	global_init();
+
+	/* General init. */
+	gnutls_global_set_log_function(tls_log_func);
+	if (debug)
+		gnutls_global_set_log_level(2);
+
+	test_failure();
+	test_success1();
+	test_success2();
+
+	gnutls_global_deinit();
+
+}