Package net.i2p.router.networkdb.kademlia

The network database, including implementation of floodfills. Database lookups, stores, exploration, and replies. Management of locally-generated RouterInfos and Leasesets.

Interface Summary

Interface	Description
DataStore

Class Summary

Class	Description
BlindCache	Cache of blinding data.
ExpireLeasesJob	Periodically search through all leases to find expired ones, failing those keys and firing up a new search for each (in case we want it later, might as well preemptively fetch it)
ExpireRoutersJob	Go through the routing table pick routers that are is out of date, but don't expire routers we're actively connected to.
ExploreJob	Search for a particular key iteratively until we either find a value, we run out of peers, or the bucket the key belongs in has sufficient values in it.
ExploreKeySelectorJob	Deprecated. unused, see comments in KNDF
FloodfillDatabaseLookupMessageHandler	Build a HandleDatabaseLookupMessageJob whenever a DatabaseLookupMessage arrives
FloodfillDatabaseStoreMessageHandler	Create a HandleDatabaseStoreMessageJob whenever a DatabaseStoreMessage arrives
FloodfillMonitorJob	Simple job to monitor the floodfill pool.
FloodfillNetworkDatabaseFacade	The network database
FloodfillPeerSelector	This is where we implement semi-Kademlia with the floodfills, by selecting floodfills closest to a given key for searches and stores.
FloodfillRouterInfoFloodJob	Job to flood nearby floodfill routers with our RI.
FloodfillStoreJob	This extends StoreJob to fire off a FloodfillVerifyStoreJob after success.
FloodfillVerifyStoreJob	Send a netDb lookup to a floodfill peer - If it is found, great, but if they reply back saying they dont know it, queue up a store of the key to a random floodfill peer again (via FloodfillStoreJob)
FloodOnlyLookupMatchJob
FloodOnlyLookupSelector	Mostly replaced by IterativeLookupSelector
FloodOnlyLookupTimeoutJob	This is the timeout for the whole search.
FloodOnlySearchJob	Uunused directly, replaced by IterativeSearchJob, but still extended by SingleSearchJob.
FloodSearchJob	Try sending a search to some floodfill peers, but if we don't get a successful match within half the allowed lookup time, give up and start querying through the normal (kademlia) channels.
FloodThrottler	Count how often we have recently flooded a key This offers basic DOS protection but is not a complete solution.
HandleFloodfillDatabaseLookupMessageJob	Handle a lookup for a key received from a remote peer.
HandleFloodfillDatabaseStoreMessageJob	Receive DatabaseStoreMessage data and store it in the local net db
IterativeFollowupJob	Ask a single peer for a single key.
IterativeLookupJob	Ask the peer who sent us the DSRM for the RouterInfos...
IterativeLookupSelector	Slightly modified version of FloodOnlyLookupSelector.
IterativeSearchJob	A traditional Kademlia search that continues to search when the initial lookup fails, by iteratively searching the closer-to-the-key peers returned by the query in a DSRM.
IterativeTimeoutJob	This is the timeout for a single lookup, not for the whole search.
KademliaNetworkDatabaseFacade	Kademlia based version of the network database.
LocalHash	Pull the caching used only by KBucketImpl out of Hash and put it here.
LookupThrottler	Count how often we have recently received a lookup request with the reply specified to go to a peer/TunnelId pair.
MessageWrapper	Method and class for garlic encrypting outbound netdb traffic, and sending keys and tags for others to encrypt inbound netdb traffic, including management of the ElGamal/AES tags.
MessageWrapper.OneTimeSession	A single key and tag, for receiving a single message.
MessageWrapper.WrappedMessage	Wrapper so that we can keep track of the key and tags for later notification to the SKM
NegativeLookupCache	Track lookup fails
PeerSelector	Mostly unused, see overrides in FloodfillPeerSelector
PersistentDataStore	Write out keys to disk when we get them and periodically read ones we don't know about into memory, with newly read routers are also added to the routing table.
RefreshRoutersJob	Go through all the routers once, after startup, and refetch their router infos.
RepublishLeaseSetJob	Run periodically for each locally created leaseSet to cause it to be republished if the client is still connected.
SearchJob	Search for a particular key iteratively until we either find a value or we run out of peers Note that this is rarely if ever used directly, and is primary used by the ExploreJob extension.
SearchMessageSelector	Check to see the message is a reply from the peer regarding the current search
SearchReplyJob
SearchState	Data related to a particular search
SearchUpdateReplyFoundJob	Called after a match to a db search is found Used only by SearchJob which is only used by ExploreJob
SingleLookupJob	Ask the peer who sent us the DSRM for the RouterInfos...
SingleSearchJob	Ask a single peer for a single key.
StartExplorersJob	Fire off search jobs for random keys from the explore pool, up to MAX_PER_RUN at a time.
StoreJob	Stores through this always request a reply.
StoreMessageSelector	Check to see the message is a reply from the peer regarding the current store
StoreState	Tracks the state of a StoreJob
TransientDataStore	Stores in-memory only.

Exception Summary

Exception	Description
UnsupportedCryptoException	Signature verification failed because the sig type is unknown or unavailable.