Edit changelog for 0.3.3.5-rc
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Nick Mathewson
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101
ChangeLog
101
ChangeLog
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o Major bugfixes (performance, load balancing):
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Changes in version 0.3.3.5-rc - 2018-04-15
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Tor 0.3.3.5-rc fixes various bugs in earlier versions of Tor,
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including some that could affect reliability or correctness.
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Changes in version 0.3.3.5-rc - 2018-04-14
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BLURB
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This is the first release candidate in the 0.3.3 series. If we find no
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new bugs or regression here, then the first stable 0.3.3 release will
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be nearly identical to this one.
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- Directory authorities no longer vote in favor of the Guard flag for
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relays that don't advertise directory support. Starting in Tor
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0.3.0.1-alpha, Tor clients have been avoiding using such relays in the
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Guard position, leading to increasingly broken load balancing for the
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5%-or-so of Guards that don't advertise directory support. Fixes bug
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22310; bugfix on 0.3.0.6.
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o Major bugfixes (protover, voting):
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o Major bugfixes (security, protover, voting):
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- Revise Rust implementation of protover to use a more memory-
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efficient voting algorithm and corresponding data structures, thus
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avoiding a potential (but small impact) DoS attack where specially
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crafted protocol strings would expand to several potential
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megabytes in memory. In the process, several portions of code were
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revised to be methods on new, custom types, rather than functions
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taking interchangeable types, thus increasing type safety of the
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module. Custom error types and handling were added as well, in
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order to facilitate better error dismissal/handling in outside
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crates and avoid mistakenly passing an internal error string to C
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over the FFI boundary. Many tests were added, and some previous
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differences between the C and Rust implementations have been
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remedied. Fixes bug 24031; bugfix on 0.3.3.1-alpha.
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avoiding a potential memory-based DoS attack where specially
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crafted protocol strings would expand to fill available memory.
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Fixes bug 24031; bugfix on 0.3.3.1-alpha.
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o Major bugfixes (performance, load balancing):
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- Directory authorities no longer vote in favor of the Guard flag
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for relays without directory support. Starting in Tor
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0.3.0.1-alpha, Tor clients have been avoiding using such relays in
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the Guard position, leading to increasingly broken load balancing
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for the 5%-or-so of Guards that don't advertise directory support.
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Fixes bug 22310; bugfix on 0.3.0.6.
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o Minor feature (continuous integration):
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- Update the Travis CI configuration to use the stable Rust channel,
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@ -31,43 +27,30 @@ Changes in version 0.3.3.5-rc - 2018-04-14
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o Minor features (config options):
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- Change the way the default value for MaxMemInQueues is calculated.
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We now use 0.4 * RAM if the system have 8 GB RAM or more, otherwise
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we use the former value of 0.75 * RAM. Closes ticket 24782.
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We now use 40% of the hardware RAM if the system has 8 GB RAM or
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more. Otherwise we use the former value of 75%. Closes
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ticket 24782.
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o Minor features (geoip):
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- Update geoip and geoip6 to the April 3 2018 Maxmind GeoLite2
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Country database. Closes ticket 25718.
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o Minor bugfix (Exit node DNS retries):
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- Re-attempt timed-out DNS queries 3 times before failure, since our
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timeout is 5 seconds for them, but clients wait 10-15. Also allow
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slightly more timeouts per resolver before giving up on it in the
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case where an exit has multiple resolvers configured. Fixes bug
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21394; bugfix on 0.3.1.9.
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o Minor bugfixes (client):
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- When using a listed relay as a bridge, and also using
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microdescriptors, and considering that relay as a non-bridge in a
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circuit, consider its microdescriptor as a valid source of
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information about that relay. Fixes bug 25691; bugfix
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on 0.3.3.4-alpha.
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o Minor bugfixes (compilation, rust):
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- Build correctly when the rust dependencies submodule is loaded,
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but the TOR_RUST_DEPENDENCIES environment variable is not set.
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Fixes bug 25679; bugfix on 0.3.3.1-alpha.
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o Minor bugfixes (configuration):
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- Remove undescores from the _HSLayer{2,3}Nodes options. This
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expert-user configuration can now be enabled as HSLayer{2,3}Nodes.
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Fixes bug 25581; bugfix on 0.3.3.1-alpha
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circuit, treat its microdescriptor as a valid source of
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information about that relay. This change should prevent a non-
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fatal assertion error. Fixes bug 25691; bugfix on 0.3.3.4-alpha.
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o Minor bugfixes (controller):
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- Restore the correct operation of the RESOLVE command, which had
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been broken since we added the ability to enable/disable DNS on
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specific listener ports. Fixes bug 25617; bugfix on 0.2.9.3-alpha.
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o Minor bugfixes (distribution, compilation):
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o Minor bugfixes (distribution, compilation, rust):
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- Build correctly when the rust dependencies submodule is loaded,
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but the TOR_RUST_DEPENDENCIES environment variable is not set.
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Fixes bug 25679; bugfix on 0.3.3.1-alpha.
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- Actually include all of our Rust source in our source
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distributions. (Previously, a few of the files were accidentally
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omitted.) Fixes bug 25732; bugfix on 0.3.3.2-alpha.
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@ -80,19 +63,29 @@ Changes in version 0.3.3.5-rc - 2018-04-14
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- Revert a misformatting issue in the ExitPolicy documentation.
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Fixes bug 25582; bugfix on 0.3.3.1-alpha.
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o Minor bugfixes (hidden services):
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- Re-instate counting pending client HSDir fetch circuits against
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the MaxClientCircuitsPending rate limit. Fixes bug 24989; bugfix
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on 0.3.3.0-alpha-dev.
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o Minor bugfixes (Exit node DNS retries):
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- Re-attempt timed-out DNS queries 3 times before failure, since our
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timeout is 5 seconds for them, but clients wait 10-15. Also allow
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slightly more timeouts per resolver before giving up on it in the
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case where an exit has multiple resolvers configured. Fixes bug
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21394; bugfix on 0.3.1.9.
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o Minor bugfixes (onion services):
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- Re-instate counting the client HSDir fetch circuits against the
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MaxClientCircuitsPending rate limit. Fixes bug 24989; bugfix
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on 0.3.3.1-alpha.
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- Remove underscores from the _HSLayer{2,3}Nodes options. This
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expert-user configuration can now be enabled as HSLayer{2,3}Nodes.
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Fixes bug 25581; bugfix on 0.3.3.1-alpha
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o Code simplification and refactoring:
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- Move the list of default directory authorities to their own file
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for inclusion using the C preprocessor. Closes ticket 24854. Patch
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by "beastr0".
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- Move the list of default directory authorities to its own file.
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Closes ticket 24854. Patch by "beastr0".
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o Documentation (manpage, denial of service):
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- Better detail the denial of service options by listing the
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different mitigation in place. Closes ticket 25248.
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- Provide more detail about the denial-of-service options, by
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listing each mitigation and explaining how they relate. Closes
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ticket 25248.
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Changes in version 0.3.3.4-alpha - 2018-03-29
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