Package net.i2p.router.tunnel

Class OutboundGatewayProcessor

java.lang.Object

net.i2p.router.tunnel.OutboundGatewayProcessor

class OutboundGatewayProcessor
extends Object

Turn the preprocessed tunnel data into something that can be delivered to the first hop in the tunnel. The crypto used in this class is also used by the InboundEndpointProcessor, as its the same 'undo' function of the tunnel crypto.

Constructor Summary

Constructors

Constructor	Description
OutboundGatewayProcessor(I2PAppContext ctx, TunnelCreatorConfig cfg)

Method Summary

Modifier and Type	Method	Description
(package private) static void	decrypt(I2PAppContext ctx, byte[] orig, int offset, int length, HopConfig config)	Undo the crypto for a single hop.
void	process(byte[] orig, int offset, int length)	Since we are the outbound gateway, pick a random IV and wrap the preprocessed data so that it will be exposed at the endpoint.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

OutboundGatewayProcessor

public OutboundGatewayProcessor(I2PAppContext ctx,
 TunnelCreatorConfig cfg)

Method Details

process

public void process(byte[] orig,
 int offset,
 int length)

Since we are the outbound gateway, pick a random IV and wrap the preprocessed data so that it will be exposed at the endpoint.

Parameters:

orig - original data with an extra 16 byte IV prepended.

offset - index into the array where the extra 16 bytes (IV) begins

length - how much of orig can we write to (must be a multiple of 16). Should always be 1024 bytes.

decrypt

static void decrypt(I2PAppContext ctx,
 byte[] orig,
 int offset,
 int length,
 HopConfig config)

Undo the crypto for a single hop. This is used by both the outbound gateway (preemptively undoing the crypto peers will add) and by the inbound endpoint.

Parameters:

orig - original data with an extra 16 byte IV prepended.

offset - index into the array where the extra 16 bytes (IV) begins

length - how much of orig can we write to (must be a multiple of 16). Should always be 1024 bytes.