* Toss in a small pool of threads (3) to execute the events queued up with
the SimpleTimer, as we do currently see the occational event
notification spiking up to a second or so.
* Implement a SAM client API in java, useful for event based streaming (or
for testing the SAM bridge)
* Added support to shut down the SAM bridge on OOM (useful if the SAM
bridge is being run outside of the router).
* Include the SAM test code in the sam.jar
* Remove an irrelevent warning message from SAM, which was caused by
perfectly normal operation due to a session being closed.
* Removed some unnecessary synchronization in the streaming lib's
PacketQueue
* More quickly clean up the memory used by the streaming lib by
immediately killing each packet's resend job as soon as it is ACKed (or
cancelled), so that there are no longer any valid pointers to the
(potentially 32KB) packet.
* Fixed the timestamps dumped to stdout when debugging the PacketHandler.
* Drop packets that would expand our inbound window beyond our maximum
buffer size (default 32 messages)
* Always read the ACK/NACK data from the verified packets received, even
if we are going to drop them
* Always adjust the window when there are messages ACKed, though do not
change its size except as before.
* Streamlined some synchronization in the router's I2CP handling
* Streamlined some memory allocation in the SAM bridge
* Default the streaming lib to disconnect on inactivity, rather than send
an empty message.
this still doesnt get the BT to where it needs to be, or fix the timeout problem,
but i dont like having so many commits outstanding and these updates are sound
* Render the burst rate fields on /config.jsp properly (thanks ugha!)
* Build in a simple timeout to flush data queued into the I2PSocket but
not yet flushed.
* Don't explicitly flush after each SAM stream write, but leave it up to
the [nonblocking] passive flush.
* Don't whine about 10-99 connection events occurring in a second
* Don't wait for completion of packets that will not be ACKed (duh)
* Adjust the congestion window, even if the packet was resent (duh)
* Make sure to wake up any blocking read()'s when the MessageInputStream
is close()ed (duh)
* Never wait more than the disconnect timeout for a write to complete
* Fix for a fast loop caused by a race in the new streaming library (thanks
DrWoo, frontier, pwk_, and thetower!)
* Minor updates to the SimpleTimer and Connection to help track down a
high CPU usage problem (dumping debug info to stdout/wrapper.log if too
many events/tasks fire in a second)
* Minor fixes for races on client disconnects (causing NPEs)
* 2004-11-26 0.4.2 released
2004-11-26 jrandom
* Enable the new streaming lib as the default. That means, for any
substantial definition, it is NOT BACKWARDS COMPATIBLE.
* Revised the installer to include start menu and desktop shortcuts for
windows platforms, including pretty icons (thanks DrWoo!)
* Allow clients specified in clients.config to have an explicit startup
delay.
* Update the default install to launch a browser pointing at the console
whenever I2P starts up, rather than only the first time it starts up
(configurable on /configservice.jsp, or in clients.config)
* Bugfix to the clock skew checking code to monitor the delta between
offsets, not the offset itself (duh)
* Router console html update
* New (and uuuuugly) code to verify that the wrapper.config contains
the necessary classpath entries on update. If it has to update the
wrapper.config, it will stop the JVM and service completely, since the
java service wrapper doesn't reread the wrapper.config on JVM restart -
requiring the user to manually restart the service after an update.
* Increase the TCP connection timeout to 30s (which is obscenely long)
------------------------------------------------
* Only allow small clock skews after the first 10 minutes of operation
(to prevent later network lag bouncing us way off course - yes, we
really need an NTP impl to balance out the network burps...)
* Revamp the I2PTunnel web interface startup process so that everything
is shown immediately, so that different pieces hanging don't hang
the rest, and other minor bugfixes.
* Take note of SAM startup error (in case you're already running a SAM
bridge...)
* Increase the bandwidth limiter burst values available to 10-60s (or
whatever is placed in /configadvanced.jsp, of course)
* Allow end of line comments in the hosts.txt and other config files,
using '#' to begin the comments (thanks susi!)
* Add support to I2PTunnel's 'client' feature for picking between multiple
target destinations (e.g. 'client 6668 irc.duck.i2p,irc.baffled.i2p')
* Add a quick link on the left hand nav to reseed if there aren't enough
known peers, as well as link to the config page if there are no active
peers. Revised config page accordingly.
* Destroy ElGamal/AES+SessionTag keys after 15 minutes of inactivity
rather that every 15 minutes, and increase the warning period in which
we refresh tags from 30s to 2 minutes.
* Bugfix for a rare problem closing an I2PTunnel stream where we'd fail
to close the I2PSocket (leaving it to timeout).
* Fix a long standing leak in I2PTunnel (hanging on to i2psocket objects)
* Fix a leak injected into the SimpleTimer
* Fix a race condition in the tunnel message handling
* Added throttles on how many I2PTunnel client connections we open at once
* Replaced some buffered streams in I2PTunnel with unbuffered streams, as
the streaming library used should take care of any buffering.
* Added a cache for some objects used in I2PTunnel, especially useful when
there are many short lived connections.
* Trimmed the SimpleTimer's processing a bit
* Added throttles on how many I2PTunnel client connections we open at once
* Replaced some buffered streams in I2PTunnel with unbuffered streams, as
the streaming library used should take care of any buffering.
* Added a cache for some objects used in I2PTunnel, especially useful when
there are many short lived connections.
* Trimmed the SimpleTimer's processing a bit
* Expose a drop down on the /configclients.jsp to enter the outbound
tunnel depth.
* Improved *hosts.txt loading
* Explicitly override the JVM's timezone settings to use GMT so that
any client applications which use timezones won't leak sensitive
data (thanks gott!)
* Bundle sam.jar in the update (thanks duck!)
* Bugfixes and unit tests for the SAM bridge to handle quoted message
parameters, verify proper operation after multiple session lifetimes,
as well as some synchronization problems.
* New properties method on the DataHelper class.
* Address a race on fast disconnecting clients
* Bugfixes and unit tests for the SAM bridge to handle quoted message
parameters, verify proper operation after multiple session lifetimes,
as well as some synchronization problems.
* New properties method on the DataHelper class.
* Address a race on fast disconnecting clients
* Fixed up the configuration overrides for the streaming socket lib
integration so that it properly honors env settings.
* More memory usage streamlining (last major revamp for now, i promise)
* Increase the tunnel test timeout rapidly if our tunnels are failing.
* Honor message expirations for some tunnel jobs that were prematurely
expired.
* Streamline memory usage with temporary object caches and more efficient
serialization for SHA256 calculation, logging, and both I2CP and I2NP
message handling.
* Fix some situations where we forward messages too eagerly. For a
request at the tunnel endpoint, if the tunnel is inbound and the target
is remote, honor the message by tunnel routing the data rather than
sending it directly to the requested location.
2004-10-30 jrandom
* Cache the temporary objects used in the AES encryption/decryption
process so that AES doesn't require any memory allocation to process
data.
* Dramatically reduce memory usage within various crypto implementations
by avoiding unnecessary (though simplifying) buffers.
* If we specify some tags to be sent in an I2CP message explicitly, use
only those, not those plus a new set (otherwise we aren't sure on ACK
which set was delivered)
* Allow configuration for the partial send timeout (how long before
resending a message down a different tunnel in a lease). This can be
updated with the "router.clientPartialSendTimeout" router config prop.
* Logging
* Allow explicit inclusion of session tags in the SDK, enabling the
resending of tags bundled with messages that would not otherwise
be ACKed.
* Don't force mode=guaranteed for end to end delivery - if mode=bestEffort
no DeliveryStatusMessage will be bundled (and as such, client apps using
it will need to do their own session tag ack/nack).
* Handle client errors when notifying them of message availability.
* New StreamSinkSend which sends a file to a destination and disconnects.
* Update the I2PSocketManagerFactory to build the specific
I2PSocketManager instance based on the "i2p.streaming.manager" property,
containing the class name of the I2PSocketManager implementation to instantiate.
* More aggressively fail peers if their tunnels are failing so that we
move off them quicker.
* Simplify some data structure serialization for reuse in the streaming
lib, as well as add support for signing and verifying partial byte
arrays.
* Logging updates
* Increased the default minimum tunnel test time to 5 seconds, since we
still see the occational message processing time spike to 2 seconds.
* Update the SimpleTimer to allow rescheduling a task thats already
queued (useful for the new streaming lib).
* Don't kill the establisher threads during a soft restart.
* Attempt to validate the peer's routerInfo earlier during handshaking.
* Revamp the AESOutputStream so it doesn't allocate any temporary objects
during its operation.
* Reimplement the I2NP reading with less temporary memory allocation.
There is still significant GC churn, especially under load, but this
should help.
* Catch some oddball errors in the transport (message timeout while
establishing).
* Update the shitlist to reject a peer for an exponentially increasing
period of time (with an upper bounds of an hour).
* Various minor stat and debugging fixes
* Add a new stat logging component to optionally dump the raw stats to
disk as they are generated, rather than rely upon the summarized data.
By default, this is off, but the router property "stat.logFilters" can
be set to a comma delimited list of stats (e.g. "client.sendAckTime")
which will be written to the file "stats.log" (or whatever the property
"stat.logFile" is set to). This can also log profile related stats,
such as "dbResponseTime" or "tunnelTestResponseTime".
* Assure that we quickly fail messages bound for shitlisted peers.
* Address a race on startup where the first peer contacted could hang the
router (thanks Romster!)
* Only whine about an intermittent inability to query the time server once
2004-09-30 jrandom
* Bundle the configuration necessary to run an eepsite out of the box
with Jetty - simply edit ./eepsite/docroot/index.html and give people
the key listed on the I2PTunnel configuration page, and its up.
* Router console cleanup, and some (off by default) tunnels -
smtp.postman.i2p (port 7659), pop.postman.i2p (port 7660), and
irc.baffled.i2p (port 7661)
* Bundle the configuration necessary to run an eepsite out of the box
with Jetty - simply edit ./eepsite/docroot/index.html and give people
the key listed on the I2PTunnel configuration page, and its up.
plus minor bugfixes / refactoring / logging
* Always wipe the Jetty work directory on startup, so that web updates
are reflected immediately (Jetty does not honor the cache across
multiple executions)
in addition, refactor various file ops out of the DataHelper into FileUtil
got some pretty heavy GC churn when under load. rough estimate is we allocate 5-8x as
much data as we need, copying it all over the place before forwarding it (or processing it).
this should cut down a few of those copies, but not enough yet. it'd be great to get that
down to 2x.
* lots of logging
* Limit the number of connection tags saved to 10,000. This is a huge
limit, but consumes no more than 1MB of RAM. For now, we drop them
randomly after reaching that size, forcing those dropped peers to use
a full DH negotiation.
* HTML cleanup in the console.
up and debug in the new tcp transport, but it all works, and i dont like having big changes
sitting on my local machine (and there's no real need for branching atm)
2004-09-26 jrandom
* Complete rewrite of the TCP transport with IP autodetection and
low CPU overhead reconnections. More concise connectivity errors
are listed on the /oldconsole.jsp as well. The IP autodetection works
by listening to the first person who tells you what your IP address is
when you have not defined one yourself and you have no other TCP
connections.
* Update to the I2NP message format to add transparent verification at
the I2NP level (beyond standard TCP verification).
* Remove a potential weakness in our AESEngine's safeEncrypt and safeDecrypt
implementation (rather than verifying with E(H(key)), we now verify with
E(H(iv))).
* The above changes are NOT BACKWARDS COMPATIBLE.
* Removed all of the old unused PHTTP code.
* Refactor various methods and clean up some javadoc.
* Have two tiers of hosts.txt files - the standard "hosts.txt" and
the new "userhosts.txt". Updates to I2P will only overwrite the former,
but values stored in the later take precedence. Both are queried on
lookup.
