jrandom authored 19 years ago and zzz committed 19 years ago

2005-07-27  jrandom
    * Enabled SSU as the default top priority transport, adjusting the
      config.jsp page accordingly.
    * Add verification fields to the SSU and TCP connection negotiation (not
      compatible with previous builds)
    * Enable the backwards incompatible tunnel crypto change as documented in
      tunnel-alt.html (have each hop encrypt the received IV before using it,
      then encrypt it again before sending it on)
    * Disable the I2CP encryption, leaving in place the end to end garlic
      encryption (another backwards incompatible change)
    * Adjust the protocol versions on the TCP and SSU transports so that they
      won't talk to older routers.
    * Fix up the config stats handling again
    * Fix a rare off-by-one in the SSU fragmentation
    * Reduce some unnecessary netDb resending by inluding the peers queried
      successfully in the store redundancy count.

jrandom authored 19 years ago and zzz committed 19 years ago

    * Use the small thread pool for I2PTunnelHTTPServer (already used for
      I2PTunnelServer)
    * Minor memory churn reduction in I2CP
    * Small stats update

jrandom authored 19 years ago and zzz committed 19 years ago

    * Fix in the SDK for a bug which would manifest itself as misrouted
      streaming packets when a destination has many concurrent streaming
      connections (thanks duck!)
    * No more "Graceful shutdown in -18140121441141s"

jrandom authored 19 years ago and zzz committed 19 years ago

    * Allow the user to specify an external port # for SSU even if the external
      host isn't specified (thanks duck!)

jrandom authored 19 years ago and zzz committed 19 years ago

    * Further preparation for removing I2CP crypto
    * Added some validation to the DH key agreement (thanks $anon)
    * Validate tunnel data message expirations (though not really a problem,
      since tunnels expire)
    * Minor PRNG threading cleanup

cervantes authored 19 years ago and zzz committed 19 years ago

	* Added workaround for an odd win32 bug in the stats configuration
	  console page which meant only the first checkbox selection was saved.

2005-07-15  Romster
	* Added per group selection toggles in the stats configuration console
	  page.

jrandom authored 19 years ago and zzz committed 19 years ago

    * Fixed a recently injected bug in the multitransport bidding which had
      allowed an essentially arbitrary choice of transports, rather than the
      properly ordered choice.
(getLatency() != getLatencyMs().  duh)

jrandom authored 19 years ago and zzz committed 19 years ago

    * Fixed a long standing bug where we weren't properly comparing session
      tags but instead largely depending upon comparing their hashCode,
      causing intermittent decryption errors.

jrandom authored 19 years ago and zzz committed 19 years ago

    * Add some data duplication to avoid a recently injected concurrency problem
      in the session tag manager (thanks redzara and romster).

jrandom authored 19 years ago and zzz committed 19 years ago

    * Reduced the growth factor on the slow start and congestion avoidance for
      the streaming lib.
    * Adjusted some of the I2PTunnelServer threading to use a small pool of
      handlers, rather than launching off new threads which then immediately
      launch off an I2PTunnelRunner instance (which launches 3 more threads..)
    * Don't persist session keys / session tags (not worth it, for now)
    * Added some detection and handling code for duplicate session tags being
      delivered (root cause still not addressed)
    * Make the PRNG's buffer size configurable (via the config property
      "i2p.prng.totalBufferSizeKB=4096")
    * Disable SSU flooding by default (duh)
    * Updates to the StreamSink apps for better throttling tests.

jrandom authored 19 years ago and zzz committed 19 years ago

* minor cleanups

jrandom authored 19 years ago and zzz committed 19 years ago

* moved the inbound partial messages to the PeerState itself, reducing lock contention in the InboundMessageFragments and transparently dropping failed messages when we drop old peer states

jrandom authored 19 years ago and zzz committed 19 years ago

    * Use a buffered PRNG, pulling the PRNG data off a larger precalculated
      buffer, rather than the underlying PRNG's (likely small) one, which in
      turn reduces the frequency of recalcing.
    * More tuning to reduce temporary allocation churn

jrandom authored 19 years ago and zzz committed 19 years ago

    * Within the tunnel, use xor(IV, msg[0:16]) as the flag to detect dups,
      rather than the IV by itself, preventing an attack that would let
      colluding internal adversaries tag a message to determine that they are
      in the same tunnel.  Thanks dvorak for the catch!
    * Drop long inactive profiles on startup and shutdown
    * /configstats.jsp: web interface to pick what stats to log
    * Deliver more session tags to account for wider window sizes
    * Cache some intermediate values in our HMACSHA256 and BC's HMAC
    * Track the client send rate (stream.sendBps and client.sendBpsRaw)
    * UrlLauncher: adjust the browser selection order
    * I2PAppContext: hooks for dummy HMACSHA256 and a weak PRNG
    * StreamSinkClient: add support for sending an unlimited amount of data
    * Migrate the tests out of the default build jars

2005-06-22  Comwiz
    * Migrate the core tests to junit

comwiz authored 19 years ago and zzz committed 19 years ago

    * Phase 1 of the unit test bounty completed. (The router build script was modified not to build the router
 tests because of a broken dependancy on the core tests. This should be fixed in
 phase 3 of the unit test bounty.)

duck authored 19 years ago and zzz committed 19 years ago

    * Fixed PRNG bug (bugzilla #107)

jrandom authored 19 years ago and zzz committed 19 years ago

    * Added a substantial optimization to the AES engine by caching the
      prepared session keys (duh).

jrandom authored 19 years ago and zzz committed 19 years ago

* increased the maximum number of fragments allowed in a message from 31 to 127,
  reducing the maximum fragment size to 8KB and moving around some bits in the fragment
  info.  This is not backwards compatible.
* removed the old (hokey) congestion control description, replacing it with the TCP-esque
  algorithm implemented
note: the code for the ACK bitfields and fragment info changes have not yet been
implemented, so the old version of this document describes whats going on in the live net.
the new bitfields / fragment info should be deployed in the next day or so (hopefully :)

jrandom authored 19 years ago and zzz committed 19 years ago

    * Cleaned up the peers page a bit more.
more udp stuff:
* add new config option: i2np.udp.alwaysPreferred=true to adjust the bidding
  so that UDP is picked first, even if a TCP connection exists
* fixed the initial clock skew problem (duh)
* reduced the MTU to 576 (largest nearly-universally-safe, and allows a
  tunnel message in 2 fragments)
* handle some races @ connection establishment (thanks duck!)
* if there are more ACKs than we can send in a packet, reschedule another
  ACK immediately

jrandom authored 19 years ago and zzz committed 19 years ago

    * Added a small new page to the web console (/peers.jsp) which contains
      the peer connection information.  This will be cleaned up a lot more
      before 0.6 is out, but its a start.

jrandom authored 19 years ago and zzz committed 19 years ago

    * Reduced some SimpleTimer churn
* add hooks for per-peer choking in the outbound message queue - if/when a
  peer reaches their cwin, no further messages will enter the 'active' pool
  until there are more bytes available.  other messages waiting (either later
  on in the same priority queue, or in the queues for other priorities) may
  take that slot.
* when we have a message acked, release the acked size to the congestion
  window (duh), rather than waiting for the second to expire and refill the
  capacity.
* send packets in a volley explicitly, waiting until we can allocate the full
  cwin size for that message

jrandom authored 19 years ago and zzz committed 19 years ago

* more stats. including per-peer KBps (updated every second)
* improved blocking/timeout situations on the send queue
* added drop simulation hook
* provide logical RTO limits

jrandom authored 19 years ago and zzz committed 19 years ago

    * Reduce the peer profile stat coallesce overhead by inlining it with the
      reorganize.
    * Limit each transport to at most one address (any transport that requires
      multiple entry points can include those alternatives in the address).
udp stuff:
* change the UDP transport's style from "udp" to "SSUv1"
* keep track of each peer's skew
* properly handle session reestablishment over an existing session, rather
  than requiring both sides to expire first

jrandom authored 19 years ago and zzz committed 19 years ago

    * More fixes for the I2PTunnel "other" interface handling (thanks nelgin!)
    * Add back the code to handle bids from multiple transports (though there
      is still only one transport enabled by default)
    * Adjust the router's queueing of outbound client messages when under
      heavy load by running the preparatory job in the client's I2CP handler
      thread, thereby blocking additional outbound messages when the router is
      hosed.
    * No need to validate or persist a netDb entry if we already have it
And for some udp stuff:
* only bid on what we know (duh)
* reduceed the queue size in the UDPSender itself, so that ACKs go
  through more quickly, leaving the payload messages to queue up in
  the outbound fragment scheduler
* rather than /= 2 on congestion, /= 2/3 (still AIMD, but less drastic)
* adjust the fragment selector so a wsiz throttle won't force extra
  volleys
* mark congestion when it occurs, not after the message has been
  ACKed
* when doing a round robin over the active messages, move on to the
  next after a full volley, not after each packet (causing less "fair"
  performance but better latency)
* reduced the lock contention in the inboundMessageFragments by
  moving the ack and complete queues to the ACKSender and
  MessageReceiver respectively (each of which have their own
  threads)
* prefer new and existing UDP sessions to new TCP sessions, but
  prefer existing TCP sessions to new UDP sessions