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ChangeLog additions for 0.3.2.2-alpha.
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ChangeLog
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ChangeLog
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Changes in version 0.3.2.2-alpha - 2017-09-29
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Tor-0.3.2.2-alpha is the second release in the 0.3.2 series. This
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release fixes several minor bugs in the new scheduler and next-
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generation onion services; both features were newly added in the 0.3.2
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series. Other fixes in this alpha include several fixes for non-fatal
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tracebacks which would appear in logs.
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With the aim to stabilise the 0.3.2 series by 15 December 2017, this
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alpha does not contain any substantial new features. Minor features
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include better testing and logging.
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The following comprises the complete list of changes included
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in tor-0.3.2.2-alpha:
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o Major bugfixes (relay, crash, assertion failure):
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- Fix a timing-based assertion failure that could occur when the
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circuit out-of-memory handler freed a connection's output buffer.
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Fixes bug 23690; bugfix on 0.2.6.1-alpha.
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o Major bugfixes (scheduler):
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- If a channel is put into the scheduler's pending list, then it
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starts closing, and then if the scheduler runs before it finishes
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closing, the scheduler will get stuck trying to flush its cells
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while the lower layers refuse to cooperate. Fix that race
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condition by given the scheduler an escape method. Fixes bug
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23676; bugfix on 0.3.2.1-alpha
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o Minor features (build, compilation):
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- The "check-changes" feature is now part of the "make check" tests;
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we'll use it to try to prevent misformed changes files from
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accumulating. Closes ticket 23564.
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- Tor builds should now fail if there are any mismatches between the
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C type representing a configuration variable and the C type the
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data-driven parser uses to store a value there. Previously, we
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needed to check these by hand, which sometimes led to mistakes.
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Closes ticket 23643.
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o Minor features (directory authorities):
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- Remove longclaw's IPv6 address, as it will soon change. Authority
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IPv6 addresses were originally added in 0.2.8.1-alpha. This leaves
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3/8 directory authorities with IPv6 addresses, but there are also
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52 fallback directory mirrors with IPv6 addresses. Resolves 19760.
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o Minor features (hidden service, circuit, logging):
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- Improve logging of many callsite in the circuit subsystem to print
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the circuit identifier(s).
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- Log when we cleanup an intro point from a service so we know when
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and for what reason it happened. Closes ticket 23604.
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o Minor features (logging):
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- Log more circuit information whenever we are about to try to
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package a relay cell on a circuit with a nonexistent n_chan.
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Attempt to diagnose ticket 8185.
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- Improve info-level log identification of particular circuits, to
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help with debugging. Closes ticket 23645.
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o Minor features (relay):
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- When choosing which circuits can be expired as unused, consider
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circuits from clients even if those clients used regular CREATE
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cells to make them; and do not consider circuits from relays even
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if they were made with CREATE_FAST. Part of ticket 22805.
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o Minor features (robustness):
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- Change several fatal assertions when flushing buffers into non-
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fatal assertions, to prevent any recurrence of 23690.
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o Minor features (spec conformance, bridge, diagnostic):
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- When handling the USERADDR command on an ExtOrPort, warn when the
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transports provides a USERADDR with no port. In a future version,
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USERADDR commands of this format may be rejected. Detects problems
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related to ticket 23080.
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o Minor features (testing):
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- Add a unit test to make sure that our own generated platform
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string will be accepted by directory authorities. Closes
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ticket 22109.
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o Minor bugfixes (bootstrapping):
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- When warning about state file clock skew, report the correct
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direction for the detected skew. Fixes bug 23606; bugfix
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on 0.2.8.1-alpha.
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- Avoid an assertion failure when logging a state file clock skew
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very early in bootstrapping. Fixes bug 23607; bugfix
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on 0.3.2.1-alpha.
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o Minor bugfixes (build, compilation):
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- Fix a compilation warning when building with zstd support on
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32-bit platforms. Fixes bug 23568; bugfix on 0.3.1.1-alpha. Found
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and fixed by Andreas Stieger.
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- When searching for OpenSSL, don't accept any OpenSSL library that
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lacks TLSv1_1_method(): Tor doesn't build with those versions.
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Additionally, look in /usr/local/opt/openssl, if it's present.
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These changes together repair the default build on OSX systems
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with Homebrew installed. Fixes bug 23602; bugfix on 0.2.7.2-alpha.
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o Minor bugfixes (compression):
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- Handle a pathological case when decompressing Zstandard data when
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the output buffer size is zero. Fixes bug 23551; bugfix
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on 0.3.1.1-alpha.
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o Minor bugfixes (documentation):
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- Fix manpage to not refer to the obsolete (and misspelled)
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UseEntryGuardsAsDirectoryGuards parameter in the description of
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NumDirectoryGuards. Fixes bug 23611; bugfix on 0.2.4.8-alpha.
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o Minor bugfixes (hidden service v3):
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- Don't log an assertion failure when we can't find the right
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information to extend to an introduction point. In rare cases,
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this could happen, causing a warning, even though tor would
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recover gracefully. Fixes bug 23159; bugfix on 0.3.2.1-alpha.
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- Pad RENDEZVOUS cell up to the size of the legacy cell which is
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much bigger so the rendezvous point can't distinguish which hidden
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service protocol is being used. Fixes bug 23420; bugfix
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on 0.3.2.1-alpha.
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o Minor bugfixes (hidden service, relay):
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- Avoid a possible double close of a circuit by the intro point on
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error of sending the INTRO_ESTABLISHED cell. Fixes bug 23610;
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bugfix on 0.3.0.1-alpha.
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o Minor bugfixes (logging, relay shutdown, annoyance):
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- When a circuit is marked for close, do not attempt to package any
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cells for channels on that circuit. Previously, we would detect
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this condition lower in the call stack, when we noticed that the
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circuit had no attached channel, and log an annoying message.
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Fixes bug 8185; bugfix on 0.2.5.4-alpha.
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o Minor bugfixes (scheduler):
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- When switching schedulers due to a consensus change, we didn't
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give the new scheduler a chance to react to the consensus. Fix
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that. Fixes bug 23537; bugfix on 0.3.2.1-alpha
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- Make the KISTSchedRunInterval option a non negative value. With
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this, the way to disable KIST through the consensus is to set it
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to 0. Fixes bug 23539; bugfix on 0.3.2.1-alpha.
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- Only notice log the selected scheduler when we switch scheduler
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types. Fixes bug 23552; bugfix on 0.3.2.1-alpha.
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- Avoid a compilation warning on macOS in scheduler_ev_add() caused
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by a different tv_usec data type. Fixes bug 23575; bugfix
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on 0.3.2.1-alpha.
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- Make a hard exit if tor is unable to pick a scheduler which can
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happen if the user specifies a scheduler type that is not
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supported and not other types in Schedulers. Fixes bug 23581;
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bugfix on 0.3.2.1-alpha.
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- Properly initialize the scheduler last run time counter so it is
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not 0 at the first tick. Fixes bug 23696; bugfix on 0.3.2.1-alpha.
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o Minor bugfixes (testing):
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- Capture and detect several "Result does not fit" warnings in unit
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tests on platforms with 32-bit time_t. Fixes bug 21800; bugfix
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on 0.2.9.3-alpha.
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- Fix additional channelpadding unit test failures by using mocked
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time instead of actual time for all tests. Fixes bug 23608; bugfix
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on 0.3.1.1-alpha.
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- The removal of some old scheduler options caused some tests to
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fail on BSD systems. Assume current behavior is correct and make
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the tests pass again. Fixes bug 23566; bugfix on 0.3.2.1-alpha.
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o Code simplification and refactoring:
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- Remove various ways of testing circuits and connections for
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"clientness"; instead, favor channel_is_client(). Part of
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ticket 22805.
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o Deprecated features:
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- The ReachableDirAddresses and ClientPreferIPv6DirPort options are
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now deprecated; they do not apply to relays, and they have had no
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effect on clients since 0.2.8.x. Closes ticket 19704.
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o Documentation:
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- HiddenServiceVersion man page entry wasn't mentioning the now
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supported version 3. Fixes ticket 23580; bugfix on 0.3.2.1-alpha.
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- Clarify that the Address option is entirely about setting an
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advertised IPv4 address. Closes ticket 18891.
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- Clarify the manpage's use of the term "address" to clarify what
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kind of address is intended. Closes ticket 21405.
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- Document that onion service subdomains are allowed, and ignored.
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Closes ticket 18736.
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Changes in version 0.3.2.1-alpha - 2017-09-18
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Tor 0.3.2.1-alpha is the first release in the 0.3.2.x series. It
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includes support for our next-generation ("v3") onion service
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