Added support for the ALPN extension.

1 files changed, 322 insertions, 0 deletions

diff --git a/tests/mini-alpn.c b/tests/mini-alpn.c
new file mode 100644
index 0000000000..8bac7421a8
--- /dev/null
+++ b/tests/mini-alpn.c
@@ -0,0 +1,322 @@
+/*
+ * Copyright (C) 2013 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) || !defined(ENABLE_ALPN)
+
+int
+main (int argc, char** argv)
+{
+    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 negotiates SRTP
+ */
+
+static void
+client (int fd, const char* protocol1, const char* protocol2)
+{
+    gnutls_session_t session;
+    int ret;
+    gnutls_datum_t proto;
+    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);
+
+    /* Use default priorities */
+    gnutls_priority_set_direct (session,
+                                "NONE:+VERS-TLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL",
+                                NULL);
+    if (protocol1)
+      {
+        gnutls_datum_t t[2];
+        t[0].data = (void*)protocol1;
+        t[0].size = strlen(protocol1);
+        t[1].data = (void*)protocol2;
+        t[1].size = strlen(protocol2);
+        
+        ret = gnutls_alpn_set_protocols(session, t, 2);
+        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: TLS version is: %s\n",
+                 gnutls_protocol_get_name (gnutls_protocol_get_version
+                                           (session)));
+    
+    ret = gnutls_alpn_get_selected_protocol(session, &proto);
+    if (ret < 0)
+      {
+        gnutls_perror(ret);
+        exit(1);
+      }
+
+    if (debug)
+      {
+        fprintf(stderr, "selected protocol: %.*s\n", (int)proto.size, proto.data);
+      }
+
+
+    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, const char* protocol1, const char* protocol2)
+{
+    int ret;
+    gnutls_session_t session;
+    gnutls_anon_server_credentials_t anoncred;
+    gnutls_datum_t t[2];
+
+    /* 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);
+
+    /* avoid calling all the priority functions, since the defaults
+     * are adequate.
+     */
+    gnutls_priority_set_direct (session,
+                                "NONE:+VERS-TLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL",
+                                NULL);
+
+    t[0].data = (void*)protocol1;
+    t[0].size = strlen(protocol1);
+    t[1].data = (void*)protocol2;
+    t[1].size = strlen(protocol2);
+    
+    ret = gnutls_alpn_set_protocols(session, t, 2);
+    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_alpn_get_selected_protocol(session, &t[0]);
+    if (ret < 0)
+      {
+        gnutls_perror(ret);
+        exit(1);
+      }
+    
+#if 0
+    if (debug)
+      {
+        success ("Protocol: %.*s\n", (int)t[0].size, t[0].data);
+      }
+#endif
+
+    /* 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 (const char* p1, const char* p2)
+{
+    int fd[2];
+    int ret;
+
+    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)
+      {
+          int status;
+          /* parent */
+
+          server (fd[0], p1, p2);
+          wait (&status);
+          if (WEXITSTATUS (status) != 0)
+              fail ("Child died with status %d\n", WEXITSTATUS (status));
+      }
+    else
+      {
+          close (fd[0]);
+          client (fd[1], p2, p1);
+          exit (0);
+      }
+}
+
+void
+doit (void)
+{
+    start ("spdy/2", "spdy/3");
+    start ("spdy/3", "spdy/2");
+}
+
+#endif /* _WIN32 */