Allow plugins to use different maximum frame lengths.

briar-api/src/net/sf/briar/api/plugins/Plugin.java

@@ -14,6 +14,9 @@ public interface Plugin {
 	/** Returns a label for looking up the plugin's translated name. */
 	String getName();
 
+	/** Returns the transport's maximum frame length in bytes. */
+	int getMaxFrameLength();
+
 	/** Returns the transport's maximum latency in milliseconds. */
 	long getMaxLatency();
 

briar-api/src/net/sf/briar/api/plugins/duplex/DuplexTransportConnection.java

@@ -11,6 +11,9 @@ import java.io.OutputStream;
  */
 public interface DuplexTransportConnection {
 
+	/** Returns the maximum frame length of the transport in bytes. */
+	int getMaxFrameLength();
+
 	/** Returns the maximum latency of the transport in milliseconds. */
 	long getMaxLatency();
 

briar-api/src/net/sf/briar/api/plugins/simplex/SimplexTransportReader.java

@@ -9,6 +9,9 @@ import java.io.InputStream;
  */
 public interface SimplexTransportReader {
 
+	/** Returns the maximum frame length of the transport in bytes. */
+	int getMaxFrameLength();
+
 	/** Returns an input stream for reading from the transport. */
 	InputStream getInputStream() throws IOException;
 

briar-api/src/net/sf/briar/api/plugins/simplex/SimplexTransportWriter.java

@@ -12,6 +12,9 @@ public interface SimplexTransportWriter {
 	/** Returns the capacity of the transport in bytes. */
 	long getCapacity();
 
+	/** Returns the maximum frame length of the transport in bytes. */
+	int getMaxFrameLength();
+
 	/** Returns the maximum latency of the transport in milliseconds. */
 	long getMaxLatency();
 

briar-api/src/net/sf/briar/api/transport/ConnectionReaderFactory.java

@@ -5,10 +5,10 @@ import java.io.InputStream;
 public interface ConnectionReaderFactory {
 
 	/** Creates a connection reader for one side of a connection. */
-	ConnectionReader createConnectionReader(InputStream in,
+	ConnectionReader createConnectionReader(InputStream in, int maxFrameLength,
 			ConnectionContext ctx, boolean incoming, boolean initiator);
 
 	/** Creates a connection reader for one side of an invitation connection. */
 	ConnectionReader createInvitationConnectionReader(InputStream in,
-			byte[] secret, boolean alice);
+			int maxFrameLength, byte[] secret, boolean alice);
 }

briar-api/src/net/sf/briar/api/transport/ConnectionWriterFactory.java

@@ -5,10 +5,11 @@ import java.io.OutputStream;
 public interface ConnectionWriterFactory {
 
 	/** Creates a connection writer for one side of a connection. */
-	ConnectionWriter createConnectionWriter(OutputStream out, long capacity,
-			ConnectionContext ctx, boolean incoming, boolean initiator);
+	ConnectionWriter createConnectionWriter(OutputStream out,
+			int maxFrameLength, long capacity, ConnectionContext ctx,
+			boolean incoming, boolean initiator);
 
 	/** Creates a connection writer for one side of an invitation connection. */
 	ConnectionWriter createInvitationConnectionWriter(OutputStream out,
-			byte[] secret, boolean alice);
+			int maxFrameLength, byte[] secret, boolean alice);
 }