1 files changed, 81 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/tls/DTLSTransport.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/tls/DTLSTransport.java
new file mode 100644
index 000000000..2df9ef7ce
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/tls/DTLSTransport.java
@@ -0,0 +1,81 @@
+package org.spongycastle.crypto.tls;
+
+import java.io.IOException;
+
+public class DTLSTransport
+    implements DatagramTransport
+{
+
+    private final DTLSRecordLayer recordLayer;
+
+    DTLSTransport(DTLSRecordLayer recordLayer)
+    {
+        this.recordLayer = recordLayer;
+    }
+
+    public int getReceiveLimit()
+        throws IOException
+    {
+        return recordLayer.getReceiveLimit();
+    }
+
+    public int getSendLimit()
+        throws IOException
+    {
+        return recordLayer.getSendLimit();
+    }
+
+    public int receive(byte[] buf, int off, int len, int waitMillis)
+        throws IOException
+    {
+        try
+        {
+            return recordLayer.receive(buf, off, len, waitMillis);
+        }
+        catch (TlsFatalAlert fatalAlert)
+        {
+            recordLayer.fail(fatalAlert.getAlertDescription());
+            throw fatalAlert;
+        }
+        catch (IOException e)
+        {
+            recordLayer.fail(AlertDescription.internal_error);
+            throw e;
+        }
+        catch (RuntimeException e)
+        {
+            recordLayer.fail(AlertDescription.internal_error);
+            throw new TlsFatalAlert(AlertDescription.internal_error);
+        }
+    }
+
+    public void send(byte[] buf, int off, int len)
+        throws IOException
+    {
+        try
+        {
+            recordLayer.send(buf, off, len);
+        }
+        catch (TlsFatalAlert fatalAlert)
+        {
+            recordLayer.fail(fatalAlert.getAlertDescription());
+            throw fatalAlert;
+        }
+        catch (IOException e)
+        {
+            recordLayer.fail(AlertDescription.internal_error);
+            throw e;
+        }
+        catch (RuntimeException e)
+        {
+            recordLayer.fail(AlertDescription.internal_error);
+            throw new TlsFatalAlert(AlertDescription.internal_error);
+        }
+    }
+
+    public void close()
+        throws IOException
+    {
+        recordLayer.close();
+    }
+}