Auto-reformat the changelog for 0.2.6.2-alpha
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ChangeLog
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ChangeLog
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Changes in version 0.2.6.2-alpha - 2014-12-??
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Tor 0.2.6.2-alpha is the second alpha release in the 0.2.6.x series.
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o Major features (relay, infrastructure): - Implement a new inter-cmux
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comparison API, a global high/low watermark mechanism and a global
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scheduler loop for transmission prioritization across all channels as
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well as among circuits on one channel. This schedule is currently
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tuned to (tolerantly) avoid making changes in the current network
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performance, but it should form the basis major circuit performance
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increases. Code by Andrea; implements ticket 9262.
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o Testing: - New tests for many parts of channel, relay, and circuit
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mux functionality. Code by Andrea; part of 9262.
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o Major features (hidden services):
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- Add a HiddenServiceStatistics option that allows Tor relays to
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gather and publish statistics about hidden service usage, to
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better understand the size and volume of the hidden service
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network. Specifically, if a Tor relay is an HSDir it will
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publish the approximate number of hidden services that have
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published descriptors to it the past 24 hours. Also, if a relay
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has acted as a hidden service rendezvous point, it will publish
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the approximate amount of rendezvous cells it has relayed the
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past 24 hours. The statistics themselves are obfuscated so that
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the exact values cannot be derived. For more details see
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proposal 238 "Better hidden service stats from Tor relays". This
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feature is currently disabled by default. Implements feature 13192.
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o Major features (relay, infrastructure):
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- Implement a new inter-cmux comparison API, a global high/low watermark
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mechanism and a global scheduler loop for transmission prioritization
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across all channels as well as among circuits on one channel. This
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schedule is currently tuned to (tolerantly) avoid making changes
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in the current network performance, but it should form the basis
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major circuit performance increases. Code by Andrea; implements
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ticket 9262.
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o Testing:
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- New tests for many parts of channel, relay, and circuit mux
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functionality. Code by Andrea; part of 9262.
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network. Specifically, if a Tor relay is an HSDir it will publish
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the approximate number of hidden services that have published
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descriptors to it the past 24 hours. Also, if a relay has acted as
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a hidden service rendezvous point, it will publish the approximate
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amount of rendezvous cells it has relayed the past 24 hours. The
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statistics themselves are obfuscated so that the exact values
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cannot be derived. For more details see proposal 238 "Better
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hidden service stats from Tor relays". This feature is currently
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disabled by default. Implements feature 13192.
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o Major bugfixes:
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- When closing an introduction circuit that was opened in
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parallel, don't mark the introduction point as
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unreachable. Previously, the first successful connection to an
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introduction point would make the other uintroduction points get
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marked as having timed out. Fixes bug 13698; bugfix on 0.0.6rc2.
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- When closing an introduction circuit that was opened in parallel,
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don't mark the introduction point as unreachable. Previously, the
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first successful connection to an introduction point would make
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the other uintroduction points get marked as having timed out.
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Fixes bug 13698; bugfix on 0.0.6rc2.
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o Minor feature:
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- When re-enabling the network, don't try to build introduction circuits
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until we have successfully built a circuit. This makes hidden services
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come up faster when the network is re-enabled. Patch from
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"akwizgran". Closes ticket 13447.
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- When re-enabling the network, don't try to build introduction
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circuits until we have successfully built a circuit. This makes
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hidden services come up faster when the network is re-enabled.
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Patch from "akwizgran". Closes ticket 13447.
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o Minor features:
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- OS X uses ipfw (FreeBSD) or pf (OpenBSD). Update the transparent
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proxy option checks to allow for both ipfw and pf on OS X. Closes
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ticket 14002.
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- Update geoip to the November 15 2014 Maxmind GeoLite2
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Country database.
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- Update geoip6 to the November 15 2014 Maxmind GeoLite2
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Country database.
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- Validate hostnames in SOCKS5 requests more strictly. If SafeSocks
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is enabled, reject requests with IP addresses as hostnames.
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Resolves ticket 13315.
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o Minor features (controller):
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- Add a "SIGNAL HEARTBEAT" Tor controller command that provokes
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@ -48,144 +57,96 @@ Changes in version 0.2.6.2-alpha - 2014-12-??
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feature 9503.
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o Minor features (hidden services):
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- Inform Tor controller about nature of failure to retrieve
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hidden service descriptor by sending reason string with HS_DESC
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FAILED controller event. Implements feature 13212.
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o Minor features (hidden services):
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- Inform Tor controller about nature of failure to retrieve hidden
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service descriptor by sending reason string with HS_DESC FAILED
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controller event. Implements feature 13212.
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- New HiddenServiceDirGroupReadable option to cause hidden service
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directories and hostname files to be created group-readable.
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Patch from "anon", David Stainton, and "meejah".
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Closes ticket 11291.
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directories and hostname files to be created group-readable. Patch
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from "anon", David Stainton, and "meejah". Closes ticket 11291.
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o Minor features:
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- OS X uses ipfw (FreeBSD) or pf (OpenBSD). Update the transparent
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proxy option checks to allow for both ipfw and pf on OS X.
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Closes ticket 14002.
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o Minor features:
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- Update geoip to the November 15 2014 Maxmind GeoLite2 Country database.
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o Minor features:
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- Update geoip6 to the November 15 2014 Maxmind GeoLite2 Country database.
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o Minor features:
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- Validate hostnames in SOCKS5 requests more strictly. If SafeSocks
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is enabled, reject requests with IP addresses as hostnames. Resolves
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ticket 13315.
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o Minor bugfixes:
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- Silence clang warnings under --enable-expensive-hardening,
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including: implicit truncation of 64 bit values to 32 bit; const
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char assignment to self; tautological compare; and additional
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parentheses around equality tests. Fixes bug 13577; bugfix
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on 0.2.5.4-alpha.
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- Stop allowing invalid address patterns containing both a wildcard
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address and a bit prefix length. This affects all our address-
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range parsing code. Fixes bug 7484; bugfix on 0.0.2pre14.
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- The address of an array in the middle of a structure will always
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be non-NULL. clang recognises this and complains. Disable the
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tautologous and redundant check to silence this warning. Fixes bug
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14001; bugfix on 0.2.1.2-alpha.
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- Use a full 256 bits of the SHA256 digest of a microdescriptor when
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computing which microdescriptors to download. This keeps us from
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erroneous download behavior if two microdescriptor digests ever
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have the same first 160 bits. Fixes part of bug 13399; bugfix
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on 0.2.3.1-alpha.
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- Reset a router's status if its microdescriptor digest changes,
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even if the first 160 bits remain the same. Fixes part of bug
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13399; bugfix on 0.2.3.1-alpha.
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- Use circuit_has_opened() instead of
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rend_client_rendcirc_has_opened() when a rendezvous circuit is
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opened because circuit_has_opened() jobs is to call a specialized
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function depending on the circuit purpose. Furthermore, a
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controller event will be triggered here where the former did not.
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Fixes bug 13936; bugfix on 0.1.1.5-alpha.
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o Minor bugfixes (hidden services):
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- Pre-check directory permissions for new hidden-services to avoid
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at least one case of "Bug: Acting on config options left us in a
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broken state. Dying." Fixes bug 13942; bugfix on 0.0.6pre1.
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o Minor bugfixes (hidden services):
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- When adding a new hidden-service (for example, via SETCONF) Tor
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no longer logs a congratulations for running a relay. Fixes bug
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- When adding a new hidden-service (for example, via SETCONF) Tor no
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longer logs a congratulations for running a relay. Fixes bug
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13941; bugfix on 0.2.6.1-alpha.
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o Minor bugfixes (hidden services):
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- When fetching hidden service descriptors, check not only for
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whether we got the hidden service we had in mind, but also
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whether we got the particular descriptors we wanted. This
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prevents a class of inefficient but annoying DoS attacks by
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hidden service directories. Fixes bug 13214; bugfix on
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0.2.1.6-alpha. Reported by "special".
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o Minor bugfixes (logging):
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- Downgrade warnings about RSA signature failures to info log
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level. Emit a warning when extra info document is found
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incompatible with a corresponding router descriptor. Fixes bug
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9812; bugfix on 0.0.6rc3.
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whether we got the hidden service we had in mind, but also whether
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we got the particular descriptors we wanted. This prevents a class
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of inefficient but annoying DoS attacks by hidden service
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directories. Fixes bug 13214; bugfix on 0.2.1.6-alpha. Reported
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by "special".
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o Minor bugfixes (logging):
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- Downgrade warnings about RSA signature failures to info log level.
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Emit a warning when extra info document is found incompatible with
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a corresponding router descriptor. Fixes bug 9812; bugfix
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on 0.0.6rc3.
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- Log the circuit identifier correctly in
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connection_ap_handshake_attach_circuit(). Fixes bug 13701;
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bugfix on 0.0.6.
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o Minor bugfixes:
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- Silence clang warnings under --enable-expensive-hardening, including:
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implicit truncation of 64 bit values to 32 bit;
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const char assignment to self;
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tautological compare; and
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additional parentheses around equality tests.
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Fixes bug 13577; bugfix on 0.2.5.4-alpha.
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o Minor bugfixes:
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- Stop allowing invalid address patterns containing both a wildcard
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address and a bit prefix length. This affects all our
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address-range parsing code. Fixes bug 7484; bugfix on 0.0.2pre14.
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o Minor bugfixes:
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- The address of an array in the middle of a structure will
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always be non-NULL. clang recognises this and complains.
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Disable the tautologous and redundant check to silence
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this warning.
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Fixes bug 14001; bugfix on 0.2.1.2-alpha.
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o Minor bugfixes:
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- Use a full 256 bits of the SHA256 digest of a microdescriptor when
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computing which microdescriptors to download. This keeps us from
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erroneous download behavior if two microdescriptor digests ever have
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the same first 160 bits. Fixes part of bug 13399; bugfix on
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0.2.3.1-alpha.
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- Reset a router's status if its microdescriptor digest changes,
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even if the first 160 bits remain the same. Fixes part of bug
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13399; bugfix on 0.2.3.1-alpha.
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o Minor bugfixes:
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- Use circuit_has_opened() instead of rend_client_rendcirc_has_opened()
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when a rendezvous circuit is opened because circuit_has_opened() jobs
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is to call a specialized function depending on the circuit purpose.
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Furthermore, a controller event will be triggered here where the
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former did not. Fixes bug 13936; bugfix on 0.1.1.5-alpha.
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connection_ap_handshake_attach_circuit(). Fixes bug 13701; bugfix
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on 0.0.6.
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o Code Simplification and Refactoring:
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- Stop using can_complete_circuits as a global variable; access it with
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a function instead.
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- Stop using can_complete_circuits as a global variable; access it
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with a function instead.
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o Code simplification and refactoring:
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- Remove our old, non-weighted bandwidth-based node selection code.
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Previously, we used it as a fallback when we couldn't perform
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weighted bandwidth-based node selection. But that would only
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weighted bandwidth-based node selection. But that would only
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happen in the cases where we had no consensus, or when we had a
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consensus generated by buggy or ancient directory authorities. In
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consensus generated by buggy or ancient directory authorities. In
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either case, it's better to use the more modern, better maintained
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algorithm, with reasonable defaults for the weights. Closes
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ticket 13126.
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o Code simplification and refactoring:
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- Avoid using operators directly as macro arguments: this lets us
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apply coccinelle transformations to our codebase more
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directly. Closes ticket 13172.
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o Code simplification and refactoring:
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apply coccinelle transformations to our codebase more directly.
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Closes ticket 13172.
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- Combine the functions used to parse ClientTransportPlugin and
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ServerTransportPlugin into a single function. Closes ticket 6456.
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o Testing:
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- New tests for parse_transport_line(). Part of ticket 6456.
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o Code simplifications and refactoring:
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- Add inline functions and convenience macros for quick lookup of
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state component of channel_t structure. Refactor various parts of
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codebase to use convenience macros instead of checking state
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member of channel_t directly. Fixes issue 7356.
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o Code simplifications and refactoring:
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- Document all members of was_router_added_t enum and rename
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- Document all members of was_router_added_t enum and rename
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ROUTER_WAS_NOT_NEW to ROUTER_IS_ALREADY_KNOWN to make it less
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confusable with ROUTER_WAS_TOO_OLD. Fixes issue 13644.
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o Code simplifications and refactoring:
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- In connection_exit_begin_conn(), use END_CIRC_REASON_TORPROTOCOL
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constant instead of hardcoded value. Fixes issue 13840.
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o Code simplifications and refactoring:
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- Refactor our generic strmap and digestmap types into a single
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implementation, so that we can add a new digest256map type trivially.
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implementation, so that we can add a new digest256map
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type trivially.
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o Directory authority changes:
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- Remove turtles as a directory authority.
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@ -193,31 +154,27 @@ Changes in version 0.2.6.2-alpha - 2014-12-??
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ticket 13296. This keeps the directory authority count at 9.
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o Documentation:
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- Document the bridge-authority-only 'networkstatus-bridges'
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file. Closes ticket 13713; patch from "tom".
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o Documentation:
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- Fix typo in PredictedPortsRelevanceTime option description in
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- Document the bridge-authority-only 'networkstatus-bridges' file.
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Closes ticket 13713; patch from "tom".
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- Fix typo in PredictedPortsRelevanceTime option description in
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manpage. Resolves issue 13707.
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o Documentation:
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- Stop suggesting that users specify nodes by nickname: it isn't a
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good idea. Also, properly cross-reference how to specify nodes
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in all parts of the manual for options that take a list of
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nodes. Closes ticket 13381.
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good idea. Also, properly cross-reference how to specify nodes in
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all parts of the manual for options that take a list of nodes.
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Closes ticket 13381.
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o Removed features:
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- Tor clients no longer support connecting to hidden services running on
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Tor 0.2.2.x and earlier; the Support022HiddenServices option has been
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removed. (There shouldn't be any hidden services running these
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versions on the network.) Closes ticket 7803.
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- Tor clients no longer support connecting to hidden services
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running on Tor 0.2.2.x and earlier; the Support022HiddenServices
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option has been removed. (There shouldn't be any hidden services
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running these versions on the network.) Closes ticket 7803.
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o Testing:
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- In the unit tests, use 'chgrp' to change the group of the unit test
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temporary directory to the current user, so that the sticky bit doesn't
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interfere with tests that check directory groups. Closes 13678.
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- New tests for parse_transport_line(). Part of ticket 6456.
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- In the unit tests, use 'chgrp' to change the group of the unit
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test temporary directory to the current user, so that the sticky
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bit doesn't interfere with tests that check directory groups.
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Closes 13678.
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Changes in version 0.2.6.1-alpha - 2014-10-30
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