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Re: Tor 0.2.2.16-alpha is out
Roger Dingledine wrote:
> Tor 0.2.2.16-alpha fixes a variety of old stream fairness bugs (most
> evident at exit relays), and also continues to resolve all the little
> bugs that have been filling up trac lately.
>
> https://www.torproject.org/download.html.en
>
> Packages will be appearing over the next few days or weeks (except
> on Windows, which apparently doesn't build -- stay tuned for an
> 0.2.2.17-alpha in that case).
>
> Changes in version 0.2.2.16-alpha - 2010-09-17
> o Major bugfixes (stream-level fairness):
> - When receiving a circuit-level SENDME for a blocked circuit, try
> to package cells fairly from all the streams that had previously
> been blocked on that circuit. Previously, we had started with the
> oldest stream, and allowed each stream to potentially exhaust
> the circuit's package window. This gave older streams on any
> given circuit priority over newer ones. Fixes bug 1937. Detected
> originally by Camilo Viecco. This bug was introduced before the
> first Tor release, in svn commit r152: it is the new winner of
> the longest-lived bug prize.
> - When the exit relay got a circuit-level sendme cell, it started
> reading on the exit streams, even if had 500 cells queued in the
> circuit queue already, so the circuit queue just grew and grew in
> some cases. We fix this by not re-enabling reading on receipt of a
> sendme cell when the cell queue is blocked. Fixes bug 1653. Bugfix
> on 0.2.0.1-alpha. Detected by Mashael AlSabah. Original patch by
> "yetonetime".
> - Newly created streams were allowed to read cells onto circuits,
> even if the circuit's cell queue was blocked and waiting to drain.
> This created potential unfairness, as older streams would be
> blocked, but newer streams would gladly fill the queue completely.
> We add code to detect this situation and prevent any stream from
> getting more than one free cell. Bugfix on 0.2.0.1-alpha. Partially
> fixes bug 1298.
>
> o Minor features:
> - Update to the September 1 2010 Maxmind GeoLite Country database.
> - Warn when CookieAuthFileGroupReadable is set but CookieAuthFile is
> not. This would lead to a cookie that is still not group readable.
> Closes bug 1843. Suggested by katmagic.
> - When logging a rate-limited warning, we now mention how many messages
> got suppressed since the last warning.
> - Add new "perconnbwrate" and "perconnbwburst" consensus params to
> do individual connection-level rate limiting of clients. The torrc
> config options with the same names trump the consensus params, if
> both are present. Replaces the old "bwconnrate" and "bwconnburst"
> consensus params which were broken from 0.2.2.7-alpha through
> 0.2.2.14-alpha. Closes bug 1947.
> - When a router changes IP address or port, authorities now launch
> a new reachability test for it. Implements ticket 1899.
> - Make the formerly ugly "2 unknown, 7 missing key, 0 good, 0 bad,
> 2 no signature, 4 required" messages about consensus signatures
> easier to read, and make sure they get logged at the same severity
> as the messages explaining which keys are which. Fixes bug 1290.
> - Don't warn when we have a consensus that we can't verify because
> of missing certificates, unless those certificates are ones
> that we have been trying and failing to download. Fixes bug 1145.
> - If you configure your bridge with a known identity fingerprint,
> and the bridge authority is unreachable (as it is in at least
> one country now), fall back to directly requesting the descriptor
> from the bridge. Finishes the feature started in 0.2.0.10-alpha;
> closes bug 1138.
> - When building with --enable-gcc-warnings on OpenBSD, disable
> warnings in system headers. This makes --enable-gcc-warnings
> pass on OpenBSD 4.8.
>
> o Minor bugfixes (on 0.2.1.x and earlier):
> - Authorities will now attempt to download consensuses if their
> own efforts to make a live consensus have failed. This change
> means authorities that restart will fetch a valid consensus, and
> it means authorities that didn't agree with the current consensus
> will still fetch and serve it if it has enough signatures. Bugfix
> on 0.2.0.9-alpha; fixes bug 1300.
> - Ensure DNS requests launched by "RESOLVE" commands from the
> controller respect the __LeaveStreamsUnattached setconf options. The
> same goes for requests launched via DNSPort or transparent
> proxying. Bugfix on 0.2.0.1-alpha; fixes bug 1525.
> - Allow handshaking OR connections to take a full KeepalivePeriod
> seconds to handshake. Previously, we would close them after
> IDLE_OR_CONN_TIMEOUT (180) seconds, the same timeout as if they
> were open. Bugfix on 0.2.1.26; fixes bug 1840. Thanks to mingw-san
> for analysis help.
> - Rate-limit "Failed to hand off onionskin" warnings.
> - Never relay a cell for a circuit we have already destroyed.
> Between marking a circuit as closeable and finally closing it,
> it may have been possible for a few queued cells to get relayed,
> even though they would have been immediately dropped by the next
> OR in the circuit. Fixes bug 1184; bugfix on 0.2.0.1-alpha.
> - Never queue a cell for a circuit that's already been marked
> for close.
> - Never vote for a server as "Running" if we have a descriptor for
> it claiming to be hibernating, and that descriptor was published
> more recently than our last contact with the server. Bugfix on
> 0.2.0.3-alpha; fixes bug 911.
> - Squash a compile warning on OpenBSD. Reported by Tas; fixes
> bug 1848.
>
> o Minor bugfixes (on 0.2.2.x):
> - Fix a regression introduced in 0.2.2.7-alpha that marked relays
> down if a directory fetch fails and you've configured either
> bridges or EntryNodes. The intent was to mark the relay as down
> _unless_ you're using bridges or EntryNodes, since if you are
> then you could quickly run out of entry points.
> - Fix the Windows directory-listing code. A bug introduced in
> 0.2.2.14-alpha could make Windows directory servers forget to load
> some of their cached v2 networkstatus files.
> - Really allow clients to use relays as bridges. Fixes bug 1776;
> bugfix on 0.2.2.15-alpha.
> - Demote a warn to info that happens when the CellStatistics option
> was just enabled. Bugfix on 0.2.2.15-alpha; fixes bug 1921.
> Reported by Moritz Bartl.
> - On Windows, build correctly either with or without Unicode support.
> This is necessary so that Tor can support fringe platforms like
> Windows 98 (which has no Unicode), or Windows CE (which has no
> non-Unicode). Bugfix on 0.2.2.14-alpha; fixes bug 1797.
>
> o Testing
> - Add a unit test for cross-platform directory-listing code.
>
Very thanks.
I already have installed it on my debian-node but I can't install it on
my BSD-node yet (from ports).
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