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authorNikos Mavrogiannopoulos <nmav@redhat.com>2016-04-29 11:47:58 +0200
committerNikos Mavrogiannopoulos <nmav@redhat.com>2016-04-29 11:48:00 +0200
commita420f0363eaef90257e1b5ffcd52708159eb6c2a (patch)
tree00374b40fbb987883a82121b59f5a313d0fe1a4d /tests/rehandshake-switch-psk-id.c
parent9466b800f03a91ef1538dc6f562d58b4607b88e6 (diff)
downloadgnutls-a420f0363eaef90257e1b5ffcd52708159eb6c2a.tar.gz
tests: added check for PSK ID change during rehandshake
The tests make sure that username changes are allowed if the flag GNUTLS_ALLOW_ID_CHANGE is specified, and prohibited otherwise.
Diffstat (limited to 'tests/rehandshake-switch-psk-id.c')
-rw-r--r--tests/rehandshake-switch-psk-id.c191
1 files changed, 191 insertions, 0 deletions
diff --git a/tests/rehandshake-switch-psk-id.c b/tests/rehandshake-switch-psk-id.c
new file mode 100644
index 0000000000..4b2a50e2e0
--- /dev/null
+++ b/tests/rehandshake-switch-psk-id.c
@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2016 Red Hat, Inc.
+ *
+ * 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 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 "utils.h"
+#include "eagain-common.h"
+
+/* This test checks whether the server switching certificates is detected
+ * by the client */
+
+const char *side;
+
+static void tls_log_func(int level, const char *str)
+{
+ fprintf(stderr, "%s|<%d>| %s", side, level, str);
+}
+
+#include "cert-common.h"
+
+static int
+pskfunc(gnutls_session_t session, const char *username,
+ gnutls_datum_t * key)
+{
+ if (debug)
+ printf("psk: username %s\n", username);
+ key->data = gnutls_malloc(4);
+ key->data[0] = 0xDE;
+ key->data[1] = 0xAD;
+ key->data[2] = 0xBE;
+ key->data[3] = 0xEF;
+ key->size = 4;
+ return 0;
+}
+
+static void try(const char *prio, gnutls_kx_algorithm_t kx, unsigned allow_change)
+{
+ int ret;
+ /* Server stuff. */
+ gnutls_psk_server_credentials_t serverpskcred;
+ gnutls_dh_params_t dh_params;
+ const gnutls_datum_t p3 =
+ { (unsigned char *) pkcs3, strlen(pkcs3) };
+ gnutls_session_t server;
+ int sret = GNUTLS_E_AGAIN;
+ /* Client stuff. */
+ gnutls_psk_client_credentials_t clientpskcred;
+ gnutls_psk_client_credentials_t clientpskcred2;
+ gnutls_session_t client;
+ const gnutls_datum_t key = { (void *) "DEADBEEF", 8 };
+ int cret = GNUTLS_E_AGAIN;
+
+ /* General init. */
+ gnutls_global_set_log_function(tls_log_func);
+ if (debug)
+ gnutls_global_set_log_level(6);
+
+ /* Init server */
+ gnutls_psk_allocate_server_credentials(&serverpskcred);
+
+ gnutls_psk_set_server_credentials_function(serverpskcred,
+ pskfunc);
+
+ gnutls_dh_params_init(&dh_params);
+ gnutls_dh_params_import_pkcs3(dh_params, &p3, GNUTLS_X509_FMT_PEM);
+ gnutls_psk_set_server_dh_params(serverpskcred, dh_params);
+
+ if (allow_change)
+ gnutls_init(&server, GNUTLS_SERVER|GNUTLS_ALLOW_ID_CHANGE);
+ else
+ gnutls_init(&server, GNUTLS_SERVER);
+ gnutls_credentials_set(server, GNUTLS_CRD_PSK,
+ serverpskcred);
+
+ gnutls_priority_set_direct(server,
+ prio,
+ NULL);
+ gnutls_transport_set_push_function(server, server_push);
+ gnutls_transport_set_pull_function(server, server_pull);
+ gnutls_transport_set_ptr(server, server);
+
+ /* Init client */
+
+ ret = gnutls_psk_allocate_client_credentials(&clientpskcred);
+ if (ret < 0)
+ exit(1);
+
+ gnutls_psk_set_client_credentials(clientpskcred, "test1", &key,
+ GNUTLS_PSK_KEY_HEX);
+
+ ret = gnutls_psk_allocate_client_credentials(&clientpskcred2);
+ if (ret < 0)
+ exit(1);
+
+ gnutls_psk_set_client_credentials(clientpskcred2, "test2", &key,
+ GNUTLS_PSK_KEY_HEX);
+
+ ret = gnutls_init(&client, GNUTLS_CLIENT);
+ if (ret < 0)
+ exit(1);
+
+ ret = gnutls_credentials_set(client, GNUTLS_CRD_PSK,
+ clientpskcred);
+ if (ret < 0)
+ exit(1);
+
+ ret = gnutls_priority_set_direct(client, prio, NULL);
+ if (ret < 0)
+ exit(1);
+
+ 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);
+
+ if (gnutls_kx_get(client) != kx) {
+ fail("got unexpected key exchange algorithm: %s (expected %s)\n",
+ gnutls_kx_get_name(gnutls_kx_get(client)),
+ gnutls_kx_get_name(kx));
+ exit(1);
+ }
+
+ /* switch client's username and rehandshake */
+ ret = gnutls_credentials_set(client, GNUTLS_CRD_PSK,
+ clientpskcred2);
+ if (ret < 0)
+ exit(1);
+
+ if (allow_change) {
+ HANDSHAKE(client, server);
+ } else {
+ HANDSHAKE_EXPECT(client, server, GNUTLS_E_AGAIN, GNUTLS_E_SESSION_USER_ID_CHANGED);
+ }
+
+ gnutls_deinit(client);
+ gnutls_deinit(server);
+
+ gnutls_psk_free_server_credentials(serverpskcred);
+ gnutls_psk_free_client_credentials(clientpskcred);
+ gnutls_psk_free_client_credentials(clientpskcred2);
+ gnutls_dh_params_deinit(dh_params);
+}
+
+void doit(void)
+{
+ global_init();
+
+ /* Allow change of ID */
+ try("NORMAL:-KX-ALL:+PSK", GNUTLS_KX_PSK, 0);
+ reset_buffers();
+ try("NORMAL:-KX-ALL:+DHE-PSK", GNUTLS_KX_DHE_PSK, 0);
+ reset_buffers();
+ try("NORMAL:-KX-ALL:+ECDHE-PSK", GNUTLS_KX_ECDHE_PSK, 0);
+ reset_buffers();
+
+ /* Prohibit (default) change of ID */
+ try("NORMAL:-KX-ALL:+PSK", GNUTLS_KX_PSK, 1);
+ reset_buffers();
+ try("NORMAL:-KX-ALL:+DHE-PSK", GNUTLS_KX_DHE_PSK, 1);
+ reset_buffers();
+ try("NORMAL:-KX-ALL:+ECDHE-PSK", GNUTLS_KX_ECDHE_PSK, 1);
+ reset_buffers();
+ gnutls_global_deinit();
+}