forward-port the 0.2.2.24-alpha changelog
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Roger Dingledine
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ChangeLog
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ChangeLog
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Changes in version 0.2.2.24-alpha - 2011-04-08
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Tor 0.2.2.24-alpha fixes a variety of bugs, including a big bug that
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prevented Tor clients from effectively using "multihomed" bridges,
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that is, bridges that listen on multiple ports or IP addresses so users
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can continue to use some of their addresses even if others get blocked.
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o Major bugfixes:
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- Fix a bug where bridge users who configure the non-canonical
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address of a bridge automatically switch to its canonical
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address. If a bridge listens at more than one address, it should be
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able to advertise those addresses independently and any non-blocked
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addresses should continue to work. Bugfix on Tor 0.2.0.x. Fixes
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bug 2510.
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- If you configured Tor to use bridge A, and then quit and
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configured Tor to use bridge B instead, it would happily continue
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to use bridge A if it's still reachable. While this behavior is
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a feature if your goal is connectivity, in some scenarios it's a
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dangerous bug. Bugfix on Tor 0.2.0.1-alpha; fixes bug 2511.
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- Directory authorities now use data collected from their own
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uptime observations when choosing whether to assign the HSDir flag
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to relays, instead of trusting the uptime value the relay reports in
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its descriptor. This change helps prevent an attack where a small
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set of nodes with frequently-changing identity keys can blackhole
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a hidden service. (Only authorities need upgrade; others will be
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fine once they do.) Bugfix on 0.2.0.10-alpha; fixes bug 2709.
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o Minor bugfixes:
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- When we restart our relay, we might get a successful connection
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from the outside before we've started our reachability tests,
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triggering a warning: "ORPort found reachable, but I have no
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routerinfo yet. Failing to inform controller of success." This
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bug was harmless unless Tor is running under a controller
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like Vidalia, in which case the controller would never get a
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REACHABILITY_SUCCEEDED status event. Bugfix on 0.1.2.6-alpha;
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fixes bug 1172.
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- Make directory authorities more accurate at recording when
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relays that have failed several reachability tests became
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unreachable, so we can provide more accuracy at assigning Stable,
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Guard, HSDir, etc flags. Bugfix on 0.2.0.6-alpha. Resolves bug 2716.
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- Fix an issue that prevented static linking of libevent on
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some platforms (notably Linux). Fixes bug 2698; bugfix on
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versions 0.2.1.23/0.2.2.8-alpha (the versions introducing
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the --with-static-libevent configure option).
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- We now ask the other side of a stream (the client or the exit)
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for more data on that stream when the amount of queued data on
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that stream dips low enough. Previously, we wouldn't ask the
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other side for more data until either it sent us more data (which
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it wasn't supposed to do if it had exhausted its window!) or we
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had completely flushed all our queued data. This flow control fix
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should improve throughput. Fixes bug 2756; bugfix on the earliest
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released versions of Tor (svn commit r152).
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- Avoid a double-mark-for-free warning when failing to attach a
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transparent proxy connection. (We thought we had fixed this in
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0.2.2.23-alpha, but it turns out our fix was checking the wrong
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connection.) Fixes bug 2757; bugfix on 0.1.2.1-alpha (the original
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bug) and 0.2.2.23-alpha (the incorrect fix).
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- When warning about missing zlib development packages during compile,
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give the correct package names. Bugfix on 0.2.0.1-alpha.
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o Minor features:
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- Directory authorities now log the source of a rejected POSTed v3
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networkstatus vote.
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- Make compilation with clang possible when using
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--enable-gcc-warnings by removing two warning optionss that clang
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hasn't implemented yet and by fixing a few warnings. Implements
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ticket 2696.
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- When expiring circuits, use microsecond timers rather than
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one-second timers. This can avoid an unpleasant situation where a
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circuit is launched near the end of one second and expired right
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near the beginning of the next, and prevent fluctuations in circuit
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timeout values.
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- Use computed circuit-build timeouts to decide when to launch
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parallel introduction circuits for hidden services. (Previously,
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we would retry after 15 seconds.)
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- Update to the April 1 2011 Maxmind GeoLite Country database.
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o Packaging fixes:
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- Create the /var/run/tor directory on startup on OpenSUSE if it is
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not already created. Patch from Andreas Stieger. Fixes bug 2573.
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o Documentation changes:
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- Modernize the doxygen configuration file slightly. Fixes bug 2707.
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- Resolve all doxygen warnings except those for missing documentation.
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Fixes bug 2705.
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- Add doxygen documentation for more functions, fields, and types.
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Changes in version 0.2.2.23-alpha - 2011-03-08
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Tor 0.2.2.23-alpha lets relays record their bandwidth history so when
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they restart they don't lose their bandwidth capacity estimate. This
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