net.i2p.router.networkdb.kademlia

Class LookupThrottler

java.lang.Object

net.i2p.router.networkdb.kademlia.LookupThrottler

class LookupThrottler
extends Object

Provides denial-of-service protection for network database lookup operations.

Tracks the frequency of recent lookup requests targeting specific reply peer/tunnel pairs to prevent abuse. Implements burst detection over sliding time windows and configurable request limits.

Note this is basic DOS protection and does not prevent spoofed reply identifiers or multiple reply tunnels from malicious requestors.

Constructor Summary

Constructors

Constructor and Description
LookupThrottler(FloodfillNetworkDatabaseFacade facade)
LookupThrottler(FloodfillNetworkDatabaseFacade facade, int maxlookups, int maxnonfflookups, long cleanTime)

Method Summary

Modifier and Type	Method and Description
(package private) boolean	shouldThrottle(Hash key, TunnelId id) increments and checks throttling

Methods inherited from class java.lang.Object

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

Constructor Detail

LookupThrottler

LookupThrottler(FloodfillNetworkDatabaseFacade facade)

LookupThrottler

LookupThrottler(FloodfillNetworkDatabaseFacade facade,
                int maxlookups,
                int maxnonfflookups,
                long cleanTime)

Parameters:

maxlookups - when floodfill

maxnonfflookups - when not floodfill

Method Detail

shouldThrottle

boolean shouldThrottle(Hash key,
                       TunnelId id)

increments and checks throttling

Parameters:

key - non-null

id - null if for direct lookups

Returns:

true if throttled