Package net.i2p.router.tunnel.pool

Class ParticipatingThrottler

java.lang.Object

net.i2p.router.tunnel.pool.ParticipatingThrottler

class ParticipatingThrottler
extends Object

Count how often we have accepted a tunnel with the peer as the previous or next hop. We limit each peer to a percentage of all participating tunnels, subject to minimum and maximum values for the limit. This offers basic protection against simple attacks but is not a complete solution, as by design, we don't know the originator of a tunnel request. This also effectively limits the number of tunnels between any given pair of routers, which probably isn't a bad thing. Note that the actual limits will be higher than specified by up to 1 / LIFETIME_PORTION because the counter window resets. Note that the counts are of previous + next hops, so the total will be higher than the participating tunnel count, and will also grow as the network uses more 3-hop tunnels.

Since:

0.8.4

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	ParticipatingThrottler.Result

Constructor Summary

Constructors

Constructor	Description
ParticipatingThrottler(RouterContext ctx)

Method Summary

Modifier and Type	Method	Description
(package private) ParticipatingThrottler.Result	shouldThrottle(Hash h)	increments before checking

Methods inherited from class java.lang.Object

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

Constructor Details

ParticipatingThrottler

ParticipatingThrottler(RouterContext ctx)

Method Details

shouldThrottle

ParticipatingThrottler.Result shouldThrottle(Hash h)

increments before checking