Diff: tls/tls_alert.c

Revision:

0:35aa5be3b78d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tls/tls_alert.c	Fri Jun 06 10:49:02 2014 +0000
@@ -0,0 +1,73 @@
+/*
+MuTLS - A super trimmed down TLS/SSL Library for embedded devices
+Author: Donatien Garnier
+Copyright (C) 2013-2014 AppNearMe Ltd
+
+This program 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 2
+of the License, or (at your option) any later version.
+
+This program 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 this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*//**
+ * \file tls_alert.c
+ * \copyright Copyright (c) AppNearMe Ltd 2013
+ * \author Donatien Garnier
+ */
+
+#define __DEBUG__ 4
+#ifndef __MODULE__
+#define __MODULE__ "tls_alert.c"
+#endif
+
+#include "core/fwk.h"
+#include "inc/mutls_errors.h"
+#include "tls_alert.h"
+
+mutls_err_t tls_alert_send( tls_record_t* record, tls_message_alert_level_t level, tls_message_alert_description_t description, buffer_t* buffer_tx )
+{
+  if( buffer_size(buffer_tx) < 2 )
+  {
+    return MUTLS_ERR_BUFFER_TOO_SMALL;
+  }
+
+  buffer_reset(buffer_tx);
+
+  buffer_nu8_write(buffer_tx, level);
+  buffer_nu8_write(buffer_tx, description);
+
+  mutls_err_t ret = tls_record_send(record, TLS_ALERT, buffer_tx);
+  if(ret)
+  {
+    return ret;
+  }
+
+  return MUTLS_OK;
+}
+
+mutls_err_t tls_alert_process( tls_record_t* record, buffer_t* buffer_rx )
+{
+  if( buffer_length(buffer_rx) < 2 )
+  {
+    return MUTLS_ERR_BUFFER_TOO_SMALL;
+  }
+
+  tls_message_alert_level_t level = buffer_nu8_read(buffer_rx);
+  tls_message_alert_description_t description = buffer_nu8_read(buffer_rx);
+
+  WARN("Alert: type: %d, description: %d", level, description);
+  if(description == CLOSE_NOTIFY)
+  {
+    return MUTLS_ERR_CONNECTION_CLOSED;
+  }
+
+  //Always return error
+  return MUTLS_ERR_PEER;
+}