--- /dev/null
+/*
+ * Copyright (C) 2012 Free Software Foundation, 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>
+
+#if defined(_WIN32)
+
+int
+main ()
+{
+ exit (77);
+}
+
+#else
+
+#include <string.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/dtls.h>
+
+#include "utils.h"
+
+static void terminate (void);
+
+/* This program tests the rehandshake in DTLS
+ */
+
+static void
+server_log_func (int level, const char *str)
+{
+ fprintf (stderr, "server|<%d>| %s", level, str);
+}
+
+static void
+client_log_func (int level, const char *str)
+{
+ fprintf (stderr, "client|<%d>| %s", level, str);
+}
+
+/* These are global */
+static pid_t child;
+
+/* A very basic DTLS client, with anonymous authentication, that exchanges heartbeats.
+ */
+
+static void
+client (int fd, int profile)
+{
+ gnutls_session_t session;
+ int ret;
+ gnutls_anon_client_credentials_t anoncred;
+ /* Need to enable anonymous KX specifically. */
+
+ gnutls_global_init ();
+
+ if (debug)
+ {
+ gnutls_global_set_log_function (client_log_func);
+ gnutls_global_set_log_level (4711);
+ }
+
+ gnutls_anon_allocate_client_credentials (&anoncred);
+
+ /* Initialize TLS session
+ */
+ gnutls_init (&session, GNUTLS_CLIENT | GNUTLS_DATAGRAM);
+ gnutls_heartbeat_enable (session, GNUTLS_HB_PEER_ALLOWED_TO_SEND);
+ gnutls_dtls_set_mtu (session, 1500);
+
+ /* Use default priorities */
+ gnutls_priority_set_direct (session,
+ "NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL",
+ NULL);
+ if (profile)
+ ret = gnutls_srtp_set_profile_direct(session, "SRTP_AES128_CM_SHA1_80",
+ NULL);
+ else
+ ret = gnutls_srtp_set_profile_direct(session, "SRTP_NULL_SHA1_80",
+ NULL);
+ if (ret < 0)
+ {
+ gnutls_perror(ret);
+ exit(1);
+ }
+
+
+ /* put the anonymous credentials to the current session
+ */
+ gnutls_credentials_set (session, GNUTLS_CRD_ANON, anoncred);
+
+ gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) fd);
+
+ /* Perform the TLS handshake
+ */
+ do
+ {
+ ret = gnutls_handshake (session);
+ }
+ while (ret < 0 && gnutls_error_is_fatal (ret) == 0);
+
+ if (ret < 0)
+ {
+ fail ("client: Handshake failed\n");
+ gnutls_perror (ret);
+ exit (1);
+ }
+ else
+ {
+ if (debug)
+ success ("client: Handshake was completed\n");
+ }
+
+ if (debug)
+ success ("client: DTLS version is: %s\n",
+ gnutls_protocol_get_name (gnutls_protocol_get_version
+ (session)));
+
+/*
+ ret = gnutls_prf(session, sizeof("EXTRACTOR-dtls_srtp")-1, "EXTRACTOR-dtls_srtp", 0, ctx_len, ctx, 32, out);
+ if (ret < 0)
+ {
+ gnutls_perror(ret);
+ exit(1);
+ }
+*/
+ gnutls_bye (session, GNUTLS_SHUT_WR);
+
+ close (fd);
+
+ gnutls_deinit (session);
+
+ gnutls_anon_free_client_credentials (anoncred);
+
+ gnutls_global_deinit ();
+}
+
+static void
+terminate (void)
+{
+ int status;
+
+ kill (child, SIGTERM);
+ wait (&status);
+ exit (1);
+}
+
+static void
+server (int fd, int profile)
+{
+ int ret;
+ gnutls_session_t session;
+ gnutls_anon_server_credentials_t anoncred;
+ /* this must be called once in the program
+ */
+ gnutls_global_init ();
+
+ if (debug)
+ {
+ gnutls_global_set_log_function (server_log_func);
+ gnutls_global_set_log_level (4711);
+ }
+
+ gnutls_anon_allocate_server_credentials (&anoncred);
+
+ gnutls_init (&session, GNUTLS_SERVER | GNUTLS_DATAGRAM);
+ gnutls_heartbeat_enable (session, GNUTLS_HB_PEER_ALLOWED_TO_SEND);
+ gnutls_dtls_set_mtu (session, 1500);
+
+ /* avoid calling all the priority functions, since the defaults
+ * are adequate.
+ */
+ gnutls_priority_set_direct (session,
+ "NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL",
+ NULL);
+
+ if (profile)
+ ret = gnutls_srtp_set_profile_direct(session, "SRTP_AES128_CM_SHA1_80",
+ NULL);
+ else
+ ret = gnutls_srtp_set_profile_direct(session, "SRTP_NULL_SHA1_80",
+ NULL);
+ if (ret < 0)
+ {
+ gnutls_perror(ret);
+ exit(1);
+ }
+
+ gnutls_credentials_set (session, GNUTLS_CRD_ANON, anoncred);
+
+ gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) fd);
+
+ do
+ {
+ ret = gnutls_handshake (session);
+ }
+ while (ret < 0 && gnutls_error_is_fatal (ret) == 0);
+ if (ret < 0)
+ {
+ close (fd);
+ gnutls_deinit (session);
+ fail ("server: Handshake has failed (%s)\n\n",
+ gnutls_strerror (ret));
+ terminate ();
+ }
+ if (debug)
+ success ("server: Handshake was completed\n");
+
+ if (debug)
+ success ("server: TLS version is: %s\n",
+ gnutls_protocol_get_name (gnutls_protocol_get_version
+ (session)));
+
+/*
+ ret = gnutls_prf(session, sizeof("EXTRACTOR-dtls_srtp")-1, "EXTRACTOR-dtls_srtp", 0, ctx_len, ctx, 32, out);
+ if (ret < 0)
+ {
+ gnutls_perror(ret);
+ exit(1);
+ }
+*/
+
+ /* do not wait for the peer to close the connection.
+ */
+ gnutls_bye (session, GNUTLS_SHUT_WR);
+
+ close (fd);
+ gnutls_deinit (session);
+
+ gnutls_anon_free_server_credentials (anoncred);
+
+ gnutls_global_deinit ();
+
+ if (debug)
+ success ("server: finished\n");
+}
+
+static void
+start (int profile)
+{
+ int fd[2];
+ int ret;
+
+ ret = socketpair (AF_UNIX, SOCK_DGRAM, 0, fd);
+ if (ret < 0)
+ {
+ perror ("socketpair");
+ exit (1);
+ }
+
+ child = fork ();
+ if (child < 0)
+ {
+ perror ("fork");
+ fail ("fork");
+ exit (1);
+ }
+
+ if (child)
+ {
+ int status;
+ /* parent */
+
+ server (fd[0], profile);
+ wait (&status);
+ if (WEXITSTATUS (status) != 0)
+ fail ("Child died with status %d\n", WEXITSTATUS (status));
+ }
+ else
+ {
+ close (fd[0]);
+ client (fd[1], profile);
+ exit (0);
+ }
+}
+
+void
+doit (void)
+{
+ start (0);
+ start (1);
+}
+
+#endif /* _WIN32 */
projects / thirdparty / gnutls.git / commitdiff
