Added test that checks the handshake timeout.

2 files changed, 260 insertions, 1 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index d9970181aa..f3a844ed5a 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -69,7 +69,7 @@ ctests = mini-deflate simple gc set_pkcs12_cred certder certuniqueid	\
 	 x509cert x509cert-tl infoaccess rsa-encrypt-decrypt \
 	 mini-loss-time mini-tdb mini-dtls-rehandshake mini-record \
 	 mini-termination mini-x509-cas mini-x509-2 pkcs12_simple \
-	 mini-emsgsize-dtls
+	 mini-emsgsize-dtls mini-handshake-timeout
 
 if ENABLE_OCSP
 ctests += ocsp
diff --git a/tests/mini-handshake-timeout.c b/tests/mini-handshake-timeout.c
new file mode 100644
index 0000000000..6261841313
--- /dev/null
+++ b/tests/mini-handshake-timeout.c
@@ -0,0 +1,259 @@
+/*
+ * 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>
+#include <string.h>
+
+#if defined(_WIN32)
+
+int main()
+{
+  exit(77);
+}
+
+#else
+
+#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 <signal.h>
+
+#include "utils.h"
+
+/* This program tests whether the handshake timeout value is enforced.
+ */
+
+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);
+}
+
+/* A very basic TLS client, with anonymous authentication.
+ */
+
+static int counter;
+static int packet_to_lose;
+gnutls_session_t session;
+
+static void
+client (int fd, int wait)
+{
+  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_handshake_set_timeout( session, 10*1000);
+
+  /* Use default priorities */
+  gnutls_priority_set_direct (session, "NORMAL:+ANON-ECDH", NULL);
+
+  /* put the anonymous credentials to the current session
+   */
+  gnutls_credentials_set (session, GNUTLS_CRD_ANON, anoncred);
+
+  counter = 0;
+
+  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);
+  
+  gnutls_deinit(session);
+  gnutls_global_deinit();
+
+  if (ret < 0)
+    {
+      if (ret != GNUTLS_E_TIMEDOUT || wait == 0) 
+        {
+          if (debug) success("client: unexpected error: %s\n", gnutls_strerror(ret));
+          exit(1);
+        }
+      if (debug) success("client: expected timeout occured\n");
+      gnutls_perror (ret);
+      exit(0);
+    }
+  else
+    {
+      if (wait != 0) fail ("client: handshake was completed unexpectedly\n");
+      gnutls_perror (ret);
+    }
+
+  exit(1);
+}
+
+
+/* These are global */
+gnutls_anon_server_credentials_t anoncred;
+pid_t child;
+
+static gnutls_session_t
+initialize_tls_session (void)
+{
+  gnutls_session_t session;
+
+  gnutls_init (&session, GNUTLS_SERVER);
+
+  /* avoid calling all the priority functions, since the defaults
+   * are adequate.
+   */
+  gnutls_priority_set_direct (session, "NORMAL:+ANON-ECDH", NULL);
+
+  gnutls_credentials_set (session, GNUTLS_CRD_ANON, anoncred);
+
+  return session;
+}
+
+static void
+server (int fd, int wait)
+{
+int ret;
+  /* 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);
+
+  session = initialize_tls_session ();
+
+  counter = 0;
+
+  gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) fd);
+
+  if (wait) sleep(15);
+  else do 
+    {
+      ret = gnutls_handshake (session);
+    }
+  while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
+
+  gnutls_deinit (session);
+  gnutls_global_deinit();
+
+  if (ret < 0)
+    {
+      return;
+    }
+}
+
+static void start (int wait)
+{
+  int fd[2];
+  int ret;
+  
+  if (debug && wait)
+    fprintf(stderr, "\nWill test timeout\n");
+  
+  ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd);
+  if (ret < 0)
+    {
+      perror("socketpair");
+      exit(1);
+    }
+
+  child = fork ();
+  if (child < 0)
+    {
+      perror ("fork");
+      fail ("fork");
+      exit(1);
+    }
+
+  if (child)
+    {
+      /* parent */
+      close(fd[1]);
+      server (fd[0], wait);
+      close(fd[0]);
+      kill(child, SIGTERM);
+    }
+  else 
+    {
+      close(fd[0]);
+      client (fd[1], wait);
+      close(fd[1]);
+      exit(0);
+    }
+}
+
+static void ch_handler(int sig)
+{
+int status;
+  wait(&status);
+  if (WEXITSTATUS(status) != 0)
+    fail("Child died with status %d\n", WEXITSTATUS(status));
+  return;
+}
+
+void
+doit (void)
+{
+  signal(SIGCHLD, ch_handler);
+
+  /* make sure that normal handshake occurs */
+  start(0);
+  
+  /* check the handshake with an expected timeout */
+  start(1);
+}
+
+#endif /* _WIN32 */