copy changelog and releasenotes from 0.3.3.6
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ChangeLog
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ChangeLog
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@ -1,3 +1,102 @@
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Changes in version 0.3.3.6 - 2018-05-22
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Tor 0.3.3.6 is the first stable release in the 0.3.3 series. It
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backports several important fixes from the 0.3.4.1-alpha.
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The Tor 0.3.3 series includes controller support and other
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improvements for v3 onion services, official support for embedding Tor
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within other applications, and our first non-trivial module written in
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the Rust programming language. (Rust is still not enabled by default
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when building Tor.) And as usual, there are numerous other smaller
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bugfixes, features, and improvements.
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Below are the changes since 0.3.3.5-rc. For a list of all changes
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since 0.3.2.10, see the ReleaseNotes file.
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o Major bugfixes (directory authorities, security, backport from 0.3.4.1-alpha):
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- When directory authorities read a zero-byte bandwidth file, they
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would previously log a warning with the contents of an
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uninitialised buffer. They now log a warning about the empty file
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instead. Fixes bug 26007; bugfix on 0.2.2.1-alpha.
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o Major bugfixes (security, directory authority, denial-of-service):
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- Fix a bug that could have allowed an attacker to force a directory
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authority to use up all its RAM by passing it a maliciously
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crafted protocol versions string. Fixes bug 25517; bugfix on
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0.2.9.4-alpha. This issue is also tracked as TROVE-2018-005.
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o Major bugfixes (crash, backport from 0.3.4.1-alpha):
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- Avoid a rare assertion failure in the circuit build timeout code
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if we fail to allow any circuits to actually complete. Fixes bug
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25733; bugfix on 0.2.2.2-alpha.
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o Major bugfixes (directory authorities, backport from 0.3.4.1-alpha):
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- Avoid a crash when testing router reachability on a router that
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could have an ed25519 ID, but which does not. Fixes bug 25415;
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bugfix on 0.3.3.2-alpha.
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o Major bugfixes (onion service, backport from 0.3.4.1-alpha):
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- Correctly detect when onion services get disabled after HUP. Fixes
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bug 25761; bugfix on 0.3.2.1.
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o Major bugfixes (relay, denial of service, backport from 0.3.4.1-alpha):
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- Impose a limit on circuit cell queue size. The limit can be
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controlled by a consensus parameter. Fixes bug 25226; bugfix
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on 0.2.4.14-alpha.
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o Minor features (compatibility, backport from 0.3.4.1-alpha):
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- Avoid some compilation warnings with recent versions of LibreSSL.
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Closes ticket 26006.
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o Minor features (continuous integration, backport from 0.3.4.1-alpha):
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- Our .travis.yml configuration now includes support for testing the
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results of "make distcheck". (It's not uncommon for "make check"
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to pass but "make distcheck" to fail.) Closes ticket 25814.
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- Our Travis CI configuration now integrates with the Coveralls
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coverage analysis tool. Closes ticket 25818.
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o Minor features (geoip):
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- Update geoip and geoip6 to the May 1 2018 Maxmind GeoLite2 Country
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database. Closes ticket 26104.
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o Minor bugfixes (client, backport from 0.3.4.1-alpha):
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- Don't consider Tor running as a client if the ControlPort is open,
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but no actual client ports are open. Fixes bug 26062; bugfix
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on 0.2.9.4-alpha.
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o Minor bugfixes (correctness, client, backport from 0.3.4.1-alpha):
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- Upon receiving a malformed connected cell, stop processing the
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cell immediately. Previously we would mark the connection for
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close, but continue processing the cell as if the connection were
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open. Fixes bug 26072; bugfix on 0.2.4.7-alpha.
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o Minor bugfixes (documentation, backport from 0.3.4.1-alpha):
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- Stop saying in the manual that clients cache ipv4 dns answers from
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exit relays. We haven't used them since 0.2.6.3-alpha, and in
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ticket 24050 we stopped even caching them as of 0.3.2.6-alpha, but
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we forgot to say so in the man page. Fixes bug 26052; bugfix
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on 0.3.2.6-alpha.
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o Minor bugfixes (Linux seccomp2 sandbox, backport from 0.3.4.1-alpha):
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- Allow the nanosleep() system call, which glibc uses to implement
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sleep() and usleep(). Fixes bug 24969; bugfix on 0.2.5.1-alpha.
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o Minor bugfixes (onion service, backport from 0.3.4.1-alpha):
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- Fix a memory leak when a v3 onion service is configured and gets a
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SIGHUP signal. Fixes bug 25901; bugfix on 0.3.2.1-alpha.
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- When parsing the descriptor signature, look for the token plus an
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extra white-space at the end. This is more correct but also will
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allow us to support new fields that might start with "signature".
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Fixes bug 26069; bugfix on 0.3.0.1-alpha.
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o Minor bugfixes (relay, crash, backport from 0.3.4.1-alpha):
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- Avoid a crash when running with DirPort set but ORPort tuned off.
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Fixes a case of bug 23693; bugfix on 0.3.1.1-alpha.
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o Documentation (backport from 0.3.4.1-alpha):
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- Correct an IPv6 error in the documentation for ExitPolicy. Closes
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ticket 25857. Patch from "CTassisF".
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Changes in version 0.3.4.1-alpha - 2018-05-17
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Changes in version 0.3.4.1-alpha - 2018-05-17
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Tor 0.3.4.1-alpha is the first release in the 0.3.4.x series. It
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Tor 0.3.4.1-alpha is the first release in the 0.3.4.x series. It
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includes refactoring to begin reducing Tor's binary size and idle CPU
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includes refactoring to begin reducing Tor's binary size and idle CPU
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635
ReleaseNotes
635
ReleaseNotes
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@ -637,6 +637,641 @@ Changes in version 0.3.3.6 - 2018-05-22
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ticket 25248.
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ticket 25248.
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Changes in version 0.3.3.6 - 2018-05-22
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Tor 0.3.3.6 is the first stable release in the 0.3.3 series. It
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backports several important fixes from the 0.3.4.1-alpha.
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The Tor 0.3.3 series includes controller support and other
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improvements for v3 onion services, official support for embedding Tor
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within other applications, and our first non-trivial module written in
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the Rust programming language. (Rust is still not enabled by default
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when building Tor.) And as usual, there are numerous other smaller
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bugfixes, features, and improvements.
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Below are the changes since 0.3.2.10. For a list of only the changes
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since 0.3.3.5-rc, see the ChangeLog file.
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o New system requirements:
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- When built with Rust, Tor now depends on version 0.2.39 of the
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libc crate. Closes tickets 25310 and 25664.
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o Major features (embedding):
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- There is now a documented stable API for programs that need to
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embed Tor. See tor_api.h for full documentation and known bugs.
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Closes ticket 23684.
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- Tor now has support for restarting in the same process.
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Controllers that run Tor using the "tor_api.h" interface can now
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restart Tor after Tor has exited. This support is incomplete,
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however: we fixed crash bugs that prevented it from working at
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all, but many bugs probably remain, including a possibility of
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security issues. Implements ticket 24581.
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o Major features (IPv6, directory documents):
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- Add consensus method 27, which adds IPv6 ORPorts to the microdesc
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consensus. This information makes it easier for IPv6 clients to
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bootstrap and choose reachable entry guards. Implements
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ticket 23826.
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- Add consensus method 28, which removes IPv6 ORPorts from
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microdescriptors. Now that the consensus contains IPv6 ORPorts,
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they are redundant in microdescs. This change will be used by Tor
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clients on 0.2.8.x and later. (That is to say, with all Tor
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clients that have IPv6 bootstrap and guard support.) Implements
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ticket 23828.
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- Expand the documentation for AuthDirHasIPv6Connectivity when it is
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set by different numbers of authorities. Fixes 23870
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on 0.2.4.1-alpha.
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o Major features (onion service v3, control port):
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- The control port now supports commands and events for v3 onion
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services. It is now possible to create ephemeral v3 services using
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ADD_ONION. Additionally, several events (HS_DESC, HS_DESC_CONTENT,
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CIRC and CIRC_MINOR) and commands (GETINFO, HSPOST, ADD_ONION and
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DEL_ONION) have been extended to support v3 onion services. Closes
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ticket 20699; implements proposal 284.
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o Major features (onion services):
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- Provide torrc options to pin the second and third hops of onion
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service circuits to a list of nodes. The option HSLayer2Guards
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pins the second hop, and the option HSLayer3Guards pins the third
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hop. These options are for use in conjunction with experiments
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with "vanguards" for preventing guard enumeration attacks. Closes
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ticket 13837.
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- When v3 onion service clients send introduce cells, they now
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include the IPv6 address of the rendezvous point, if it has one.
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Current v3 onion services running 0.3.2 ignore IPv6 addresses, but
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in future Tor versions, IPv6-only v3 single onion services will be
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able to use IPv6 addresses to connect directly to the rendezvous
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point. Closes ticket 23577. Patch by Neel Chauhan.
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o Major features (relay):
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- Implement an option, ReducedExitPolicy, to allow an Tor exit relay
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operator to use a more reasonable ("reduced") exit policy, rather
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than the default one. If you want to run an exit node without
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thinking too hard about which ports to allow, this one is for you.
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Closes ticket 13605. Patch from Neel Chauhan.
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o Major features (rust, portability, experimental):
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- Tor now ships with an optional implementation of one of its
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smaller modules (protover.c) in the Rust programming language. To
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try it out, install a Rust build environment, and configure Tor
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with "--enable-rust --enable-cargo-online-mode". This should not
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cause any user-visible changes, but should help us gain more
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experience with Rust, and plan future Rust integration work.
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Implementation by Chelsea Komlo. Closes ticket 22840.
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o Major bugfixes (directory authorities, security, backport from 0.3.4.1-alpha):
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- When directory authorities read a zero-byte bandwidth file, they
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would previously log a warning with the contents of an
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uninitialised buffer. They now log a warning about the empty file
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instead. Fixes bug 26007; bugfix on 0.2.2.1-alpha.
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o Major bugfixes (security, directory authority, denial-of-service):
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- Fix a bug that could have allowed an attacker to force a directory
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authority to use up all its RAM by passing it a maliciously
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crafted protocol versions string. Fixes bug 25517; bugfix on
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0.2.9.4-alpha. This issue is also tracked as TROVE-2018-005.
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o Major bugfixes (crash, backport from 0.3.4.1-alpha):
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- Avoid a rare assertion failure in the circuit build timeout code
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if we fail to allow any circuits to actually complete. Fixes bug
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25733; bugfix on 0.2.2.2-alpha.
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o Major bugfixes (netflow padding):
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- Stop adding unneeded channel padding right after we finish
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flushing to a connection that has been trying to flush for many
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seconds. Instead, treat all partial or complete flushes as
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activity on the channel, which will defer the time until we need
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to add padding. This fix should resolve confusing and scary log
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messages like "Channel padding timeout scheduled 221453ms in the
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past." Fixes bug 22212; bugfix on 0.3.1.1-alpha.
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o Major bugfixes (networking):
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- Tor will no longer reject IPv6 address strings from Tor Browser
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when they are passed as hostnames in SOCKS5 requests. Fixes bug
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25036, bugfix on Tor 0.3.1.2.
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o Major bugfixes (onion service, backport from 0.3.4.1-alpha):
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- Correctly detect when onion services get disabled after HUP. Fixes
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bug 25761; bugfix on 0.3.2.1.
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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, clients have been avoiding using such relays in the
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Guard position, leading to increasingly broken load balancing for
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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 Major bugfixes (relay):
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- If we have failed to connect to a relay and received a connection
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refused, timeout, or similar error (at the TCP level), do not try
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that same address/port again for 60 seconds after the failure has
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occurred. Fixes bug 24767; bugfix on 0.0.6.
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o Major bugfixes (relay, denial of service, backport from 0.3.4.1-alpha):
|
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- Impose a limit on circuit cell queue size. The limit can be
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controlled by a consensus parameter. Fixes bug 25226; bugfix
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on 0.2.4.14-alpha.
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o Minor features (cleanup):
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- Tor now deletes the CookieAuthFile and ExtORPortCookieAuthFile
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when it stops. Closes ticket 23271.
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o Minor features (compatibility, backport from 0.3.4.1-alpha):
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- Avoid some compilation warnings with recent versions of LibreSSL.
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Closes ticket 26006.
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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 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 (continuous integration):
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- Update the Travis CI configuration to use the stable Rust channel,
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now that we have decided to require that. Closes ticket 25714.
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o Minor features (continuous integration, backport from 0.3.4.1-alpha):
|
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- Our .travis.yml configuration now includes support for testing the
|
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|
results of "make distcheck". (It's not uncommon for "make check"
|
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|
to pass but "make distcheck" to fail.) Closes ticket 25814.
|
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- Our Travis CI configuration now integrates with the Coveralls
|
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coverage analysis tool. Closes ticket 25818.
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o Minor features (defensive programming):
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- Most of the functions in Tor that free objects have been replaced
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with macros that free the objects and set the corresponding
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pointers to NULL. This change should help prevent a large class of
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dangling pointer bugs. Closes ticket 24337.
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- Where possible, the tor_free() macro now only evaluates its input
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once. Part of ticket 24337.
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- Check that microdesc ed25519 ids are non-zero in
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node_get_ed25519_id() before returning them. Implements ticket
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24001, patch by "aruna1234".
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o Minor features (directory authority):
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- When directory authorities are unable to add signatures to a
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pending consensus, log the reason why. Closes ticket 24849.
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o Minor features (embedding):
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- Tor can now start with a preauthenticated control connection
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created by the process that launched it. This feature is meant for
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use by programs that want to launch and manage a Tor process
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without allowing other programs to manage it as well. For more
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information, see the __OwningControllerFD option documented in
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control-spec.txt. Closes ticket 23900.
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- On most errors that would cause Tor to exit, it now tries to
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return from the tor_main() function, rather than calling the
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system exit() function. Most users won't notice a difference here,
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but it should be significant for programs that run Tor inside a
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separate thread: they should now be able to survive Tor's exit
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conditions rather than having Tor shut down the entire process.
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Closes ticket 23848.
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- Applications that want to embed Tor can now tell Tor not to
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register any of its own POSIX signal handlers, using the
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__DisableSignalHandlers option. Closes ticket 24588.
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o Minor features (fallback directory list):
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- Avoid selecting fallbacks that change their IP addresses too
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often. Select more fallbacks by ignoring the Guard flag, and
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allowing lower cutoffs for the Running and V2Dir flags. Also allow
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a lower bandwidth, and a higher number of fallbacks per operator
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(5% of the list). Implements ticket 24785.
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- Update the fallback whitelist and blacklist based on opt-ins and
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relay changes. Closes tickets 22321, 24678, 22527, 24135,
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and 24695.
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o Minor features (fallback directory mirror configuration):
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- Add a nickname to each fallback in a C comment. This makes it
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easier for operators to find their relays, and allows stem to use
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nicknames to identify fallbacks. Implements ticket 24600.
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- Add a type and version header to the fallback directory mirror
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file. Also add a delimiter to the end of each fallback entry. This
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helps external parsers like stem and Relay Search. Implements
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ticket 24725.
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- Add an extrainfo cache flag for each fallback in a C comment. This
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allows stem to use fallbacks to fetch extra-info documents, rather
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than using authorities. Implements ticket 22759.
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- Add the generateFallbackDirLine.py script for automatically
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||||||
|
generating fallback directory mirror lines from relay fingerprints.
|
||||||
|
No more typos! Add the lookupFallbackDirContact.py script for
|
||||||
|
automatically looking up operator contact info from relay
|
||||||
|
fingerprints. Implements ticket 24706, patch by teor and atagar.
|
||||||
|
- Reject any fallback directory mirror that serves an expired
|
||||||
|
consensus. Implements ticket 20942, patch by "minik".
|
||||||
|
- Remove commas and equals signs from external string inputs to the
|
||||||
|
fallback list. This avoids format confusion attacks. Implements
|
||||||
|
ticket 24726.
|
||||||
|
- Remove the "weight=10" line from fallback directory mirror
|
||||||
|
entries. Ticket 24681 will maintain the current fallback weights
|
||||||
|
by changing Tor's default fallback weight to 10. Implements
|
||||||
|
ticket 24679.
|
||||||
|
- Stop logging excessive information about fallback netblocks.
|
||||||
|
Implements ticket 24791.
|
||||||
|
|
||||||
|
o Minor features (forward-compatibility):
|
||||||
|
- If a relay supports some link authentication protocol that we do
|
||||||
|
not recognize, then include that relay's ed25519 key when telling
|
||||||
|
other relays to extend to it. Previously, we treated future
|
||||||
|
versions as if they were too old to support ed25519 link
|
||||||
|
authentication. Closes ticket 20895.
|
||||||
|
|
||||||
|
o Minor features (geoip):
|
||||||
|
- Update geoip and geoip6 to the May 1 2018 Maxmind GeoLite2 Country
|
||||||
|
database. Closes ticket 26104.
|
||||||
|
|
||||||
|
o Minor features (heartbeat):
|
||||||
|
- Add onion service information to our heartbeat logs, displaying
|
||||||
|
stats about the activity of configured onion services. Closes
|
||||||
|
ticket 24896.
|
||||||
|
|
||||||
|
o Minor features (instrumentation, development):
|
||||||
|
- Add the MainloopStats option to allow developers to get
|
||||||
|
instrumentation information from the main event loop via the
|
||||||
|
heartbeat messages. We hope to use this to improve Tor's behavior
|
||||||
|
when it's trying to sleep. Closes ticket 24605.
|
||||||
|
|
||||||
|
o Minor features (IPv6):
|
||||||
|
- Make IPv6-only clients wait for microdescs for relays, even if we
|
||||||
|
were previously using descriptors (or were using them as a bridge)
|
||||||
|
and have a cached descriptor for them. Implements ticket 23827.
|
||||||
|
- When a consensus has IPv6 ORPorts, make IPv6-only clients use
|
||||||
|
them, rather than waiting to download microdescriptors. Implements
|
||||||
|
ticket 23827.
|
||||||
|
|
||||||
|
o Minor features (log messages):
|
||||||
|
- Improve log message in the out-of-memory handler to include
|
||||||
|
information about memory usage from the different compression
|
||||||
|
backends. Closes ticket 25372.
|
||||||
|
- Improve a warning message that happens when we fail to re-parse an
|
||||||
|
old router because of an expired certificate. Closes ticket 20020.
|
||||||
|
- Make the log more quantitative when we hit MaxMemInQueues
|
||||||
|
threshold exposing some values. Closes ticket 24501.
|
||||||
|
|
||||||
|
o Minor features (logging):
|
||||||
|
- Clarify the log messages produced when getrandom() or a related
|
||||||
|
entropy-generation mechanism gives an error. Closes ticket 25120.
|
||||||
|
- Added support for the Android logging subsystem. Closes
|
||||||
|
ticket 24362.
|
||||||
|
|
||||||
|
o Minor features (performance):
|
||||||
|
- Support predictive circuit building for onion service circuits
|
||||||
|
with multiple layers of guards. Closes ticket 23101.
|
||||||
|
- Use stdatomic.h where available, rather than mutexes, to implement
|
||||||
|
atomic_counter_t. Closes ticket 23953.
|
||||||
|
|
||||||
|
o Minor features (performance, 32-bit):
|
||||||
|
- Improve performance on 32-bit systems by avoiding 64-bit division
|
||||||
|
when calculating the timestamp in milliseconds for channel padding
|
||||||
|
computations. Implements ticket 24613.
|
||||||
|
- Improve performance on 32-bit systems by avoiding 64-bit division
|
||||||
|
when timestamping cells and buffer chunks for OOM calculations.
|
||||||
|
Implements ticket 24374.
|
||||||
|
|
||||||
|
o Minor features (performance, OSX, iOS):
|
||||||
|
- Use the mach_approximate_time() function (when available) to
|
||||||
|
implement coarse monotonic time. Having a coarse time function
|
||||||
|
should avoid a large number of system calls, and improve
|
||||||
|
performance slightly, especially under load. Closes ticket 24427.
|
||||||
|
|
||||||
|
o Minor features (performance, windows):
|
||||||
|
- Improve performance on Windows Vista and Windows 7 by adjusting
|
||||||
|
TCP send window size according to the recommendation from
|
||||||
|
SIO_IDEAL_SEND_BACKLOG_QUERY. Closes ticket 22798. Patch
|
||||||
|
from Vort.
|
||||||
|
|
||||||
|
o Minor features (sandbox):
|
||||||
|
- Explicitly permit the poll() system call when the Linux
|
||||||
|
seccomp2-based sandbox is enabled: apparently, some versions of
|
||||||
|
libc use poll() when calling getpwnam(). Closes ticket 25313.
|
||||||
|
|
||||||
|
o Minor features (storage, configuration):
|
||||||
|
- Users can store cached directory documents somewhere other than
|
||||||
|
the DataDirectory by using the CacheDirectory option. Similarly,
|
||||||
|
the storage location for relay's keys can be overridden with the
|
||||||
|
KeyDirectory option. Closes ticket 22703.
|
||||||
|
|
||||||
|
o Minor features (testing):
|
||||||
|
- Add a "make test-rust" target to run the rust tests only. Closes
|
||||||
|
ticket 25071.
|
||||||
|
|
||||||
|
o Minor features (testing, debugging, embedding):
|
||||||
|
- For development purposes, Tor now has a mode in which it runs for
|
||||||
|
a few seconds, then stops, and starts again without exiting the
|
||||||
|
process. This mode is meant to help us debug various issues with
|
||||||
|
ticket 23847. To use this feature, compile with
|
||||||
|
--enable-restart-debugging, and set the TOR_DEBUG_RESTART
|
||||||
|
environment variable. This is expected to crash a lot, and is
|
||||||
|
really meant for developers only. It will likely be removed in a
|
||||||
|
future release. Implements ticket 24583.
|
||||||
|
|
||||||
|
o Minor bugfixes (build, rust):
|
||||||
|
- Fix output of autoconf checks to display success messages for Rust
|
||||||
|
dependencies and a suitable rustc compiler version. Fixes bug
|
||||||
|
24612; bugfix on 0.3.1.3-alpha.
|
||||||
|
- Don't pass the --quiet option to cargo: it seems to suppress some
|
||||||
|
errors, which is not what we want to do when building. Fixes bug
|
||||||
|
24518; bugfix on 0.3.1.7.
|
||||||
|
- Build correctly when building from outside Tor's source tree with
|
||||||
|
the TOR_RUST_DEPENDENCIES option set. Fixes bug 22768; bugfix
|
||||||
|
on 0.3.1.7.
|
||||||
|
|
||||||
|
o Minor bugfixes (C correctness):
|
||||||
|
- Fix a very unlikely (impossible, we believe) null pointer
|
||||||
|
dereference. Fixes bug 25629; bugfix on 0.2.9.15. Found by
|
||||||
|
Coverity; this is CID 1430932.
|
||||||
|
|
||||||
|
o Minor bugfixes (channel, client):
|
||||||
|
- Better identify client connection when reporting to the geoip
|
||||||
|
client cache. Fixes bug 24904; bugfix on 0.3.1.7.
|
||||||
|
|
||||||
|
o Minor bugfixes (circuit, cannibalization):
|
||||||
|
- Don't cannibalize preemptively-built circuits if we no longer
|
||||||
|
recognize their first hop. This situation can happen if our Guard
|
||||||
|
relay went off the consensus after the circuit was created. Fixes
|
||||||
|
bug 24469; bugfix on 0.0.6.
|
||||||
|
|
||||||
|
o Minor bugfixes (client, backport from 0.3.4.1-alpha):
|
||||||
|
- Don't consider Tor running as a client if the ControlPort is open,
|
||||||
|
but no actual client ports are open. Fixes bug 26062; bugfix
|
||||||
|
on 0.2.9.4-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (compilation):
|
||||||
|
- Fix a C99 compliance issue in our configuration script that caused
|
||||||
|
compilation issues when compiling Tor with certain versions of
|
||||||
|
xtools. Fixes bug 25474; bugfix on 0.3.2.5-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (controller):
|
||||||
|
- Restore the correct operation of the RESOLVE command, which had
|
||||||
|
been broken since we added the ability to enable/disable DNS on
|
||||||
|
specific listener ports. Fixes bug 25617; bugfix on 0.2.9.3-alpha.
|
||||||
|
- Avoid a (nonfatal) assertion failure when extending a one-hop
|
||||||
|
circuit from the controller to become a multihop circuit. Fixes
|
||||||
|
bug 24903; bugfix on 0.2.5.2-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (correctness):
|
||||||
|
- Remove a nonworking, unnecessary check to see whether a circuit
|
||||||
|
hop's identity digest was set when the circuit failed. Fixes bug
|
||||||
|
24927; bugfix on 0.2.4.4-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (correctness, client, backport from 0.3.4.1-alpha):
|
||||||
|
- Upon receiving a malformed connected cell, stop processing the
|
||||||
|
cell immediately. Previously we would mark the connection for
|
||||||
|
close, but continue processing the cell as if the connection were
|
||||||
|
open. Fixes bug 26072; bugfix on 0.2.4.7-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (directory authorities, IPv6):
|
||||||
|
- When creating a routerstatus (vote) from a routerinfo (descriptor),
|
||||||
|
set the IPv6 address to the unspecified IPv6 address, and
|
||||||
|
explicitly initialize the port to zero. Fixes bug 24488; bugfix
|
||||||
|
on 0.2.4.1-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (documentation):
|
||||||
|
- Document that the PerConnBW{Rate,Burst} options will fall back to
|
||||||
|
their corresponding consensus parameters only if those parameters
|
||||||
|
are set. Previously we had claimed that these values would always
|
||||||
|
be set in the consensus. Fixes bug 25296; bugfix on 0.2.2.7-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (documentation, backport from 0.3.4.1-alpha):
|
||||||
|
- Stop saying in the manual that clients cache ipv4 dns answers from
|
||||||
|
exit relays. We haven't used them since 0.2.6.3-alpha, and in
|
||||||
|
ticket 24050 we stopped even caching them as of 0.3.2.6-alpha, but
|
||||||
|
we forgot to say so in the man page. Fixes bug 26052; bugfix
|
||||||
|
on 0.3.2.6-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (exit relay DNS retries):
|
||||||
|
- Re-attempt timed-out DNS queries 3 times before failure, since our
|
||||||
|
timeout is 5 seconds for them, but clients wait 10-15. Also allow
|
||||||
|
slightly more timeouts per resolver when an exit has multiple
|
||||||
|
resolvers configured. Fixes bug 21394; bugfix on 0.3.1.9.
|
||||||
|
|
||||||
|
o Minor bugfixes (fallback directory mirrors):
|
||||||
|
- Make updateFallbackDirs.py search harder for python. (Some OSs
|
||||||
|
don't put it in /usr/bin.) Fixes bug 24708; bugfix
|
||||||
|
on 0.2.8.1-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (hibernation, bandwidth accounting, shutdown):
|
||||||
|
- When hibernating, close connections normally and allow them to
|
||||||
|
flush. Fixes bug 23571; bugfix on 0.2.4.7-alpha. Also fixes
|
||||||
|
bug 7267.
|
||||||
|
- Do not attempt to launch self-reachability tests when entering
|
||||||
|
hibernation. Fixes a case of bug 12062; bugfix on 0.0.9pre5.
|
||||||
|
- Resolve several bugs related to descriptor fetching on bridge
|
||||||
|
clients with bandwidth accounting enabled. (This combination is
|
||||||
|
not recommended!) Fixes a case of bug 12062; bugfix
|
||||||
|
on 0.2.0.3-alpha.
|
||||||
|
- When hibernating, do not attempt to launch DNS checks. Fixes a
|
||||||
|
case of bug 12062; bugfix on 0.1.2.2-alpha.
|
||||||
|
- When hibernating, do not try to upload or download descriptors.
|
||||||
|
Fixes a case of bug 12062; bugfix on 0.0.9pre5.
|
||||||
|
|
||||||
|
o Minor bugfixes (IPv6, bridges):
|
||||||
|
- Tor now always sets IPv6 preferences for bridges. Fixes bug 24573;
|
||||||
|
bugfix on 0.2.8.2-alpha.
|
||||||
|
- Tor now sets IPv6 address in the routerstatus as well as in the
|
||||||
|
router descriptors when updating addresses for a bridge. Closes
|
||||||
|
ticket 24572; bugfix on 0.2.4.5-alpha. Patch by "ffmancera".
|
||||||
|
|
||||||
|
o Minor bugfixes (Linux seccomp2 sandbox):
|
||||||
|
- When running with the sandbox enabled, reload configuration files
|
||||||
|
correctly even when %include was used. Previously we would crash.
|
||||||
|
Fixes bug 22605; bugfix on 0.3.1. Patch from Daniel Pinto.
|
||||||
|
|
||||||
|
o Minor bugfixes (Linux seccomp2 sandbox, backport from 0.3.4.1-alpha):
|
||||||
|
- Allow the nanosleep() system call, which glibc uses to implement
|
||||||
|
sleep() and usleep(). Fixes bug 24969; bugfix on 0.2.5.1-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (logging):
|
||||||
|
- Fix a (mostly harmless) race condition when invoking
|
||||||
|
LOG_PROTOCOL_WARN message from a subthread while the torrc options
|
||||||
|
are changing. Fixes bug 23954; bugfix on 0.1.1.9-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (man page, SocksPort):
|
||||||
|
- Remove dead code from the old "SocksSocket" option, and rename
|
||||||
|
SocksSocketsGroupWritable to UnixSocksGroupWritable. The old
|
||||||
|
option still works, but is deprecated. Fixes bug 24343; bugfix
|
||||||
|
on 0.2.6.3.
|
||||||
|
|
||||||
|
o Minor bugfixes (memory leaks):
|
||||||
|
- Avoid possible at-exit memory leaks related to use of Libevent's
|
||||||
|
event_base_once() function. (This function tends to leak memory if
|
||||||
|
the event_base is closed before the event fires.) Fixes bug 24584;
|
||||||
|
bugfix on 0.2.8.1-alpha.
|
||||||
|
- Fix a harmless memory leak in tor-resolve. Fixes bug 24582; bugfix
|
||||||
|
on 0.2.1.1-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (network IPv6 test):
|
||||||
|
- Tor's test scripts now check if "ping -6 ::1" works when the user
|
||||||
|
runs "make test-network-all". Fixes bug 24677; bugfix on
|
||||||
|
0.2.9.3-alpha. Patch by "ffmancera".
|
||||||
|
|
||||||
|
o Minor bugfixes (networking):
|
||||||
|
- string_is_valid_hostname() will not consider IP strings to be
|
||||||
|
valid hostnames. Fixes bug 25055; bugfix on Tor 0.2.5.5.
|
||||||
|
|
||||||
|
o Minor bugfixes (onion service v3):
|
||||||
|
- Avoid an assertion failure when the next onion service descriptor
|
||||||
|
rotation type is out of sync with the consensus's valid-after
|
||||||
|
time. Instead, log a warning message with extra information, so we
|
||||||
|
can better hunt down the cause of this assertion. Fixes bug 25306;
|
||||||
|
bugfix on 0.3.2.1-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (onion service, backport from 0.3.4.1-alpha):
|
||||||
|
- Fix a memory leak when a v3 onion service is configured and gets a
|
||||||
|
SIGHUP signal. Fixes bug 25901; bugfix on 0.3.2.1-alpha.
|
||||||
|
- When parsing the descriptor signature, look for the token plus an
|
||||||
|
extra white-space at the end. This is more correct but also will
|
||||||
|
allow us to support new fields that might start with "signature".
|
||||||
|
Fixes bug 26069; bugfix on 0.3.0.1-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (onion services):
|
||||||
|
- If we are configured to offer a single onion service, don't log
|
||||||
|
long-term established one hop rendezvous points in the heartbeat.
|
||||||
|
Fixes bug 25116; bugfix on 0.2.9.6-rc.
|
||||||
|
|
||||||
|
o Minor bugfixes (performance):
|
||||||
|
- Reduce the number of circuits that will be opened at once during
|
||||||
|
the circuit build timeout phase. This is done by increasing the
|
||||||
|
idle timeout to 3 minutes, and lowering the maximum number of
|
||||||
|
concurrent learning circuits to 10. Fixes bug 24769; bugfix
|
||||||
|
on 0.3.1.1-alpha.
|
||||||
|
- Avoid calling protocol_list_supports_protocol() from inside tight
|
||||||
|
loops when running with cached routerinfo_t objects. Instead,
|
||||||
|
summarize the relevant protocols as flags in the routerinfo_t, as
|
||||||
|
we do for routerstatus_t objects. This change simplifies our code
|
||||||
|
a little, and saves a large amount of short-term memory allocation
|
||||||
|
operations. Fixes bug 25008; bugfix on 0.2.9.4-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (performance, timeouts):
|
||||||
|
- Consider circuits for timeout as soon as they complete a hop. This
|
||||||
|
is more accurate than applying the timeout in
|
||||||
|
circuit_expire_building() because that function is only called
|
||||||
|
once per second, which is now too slow for typical timeouts on the
|
||||||
|
current network. Fixes bug 23114; bugfix on 0.2.2.2-alpha.
|
||||||
|
- Use onion service circuits (and other circuits longer than 3 hops)
|
||||||
|
to calculate a circuit build timeout. Previously, Tor only
|
||||||
|
calculated its build timeout based on circuits that planned to be
|
||||||
|
exactly 3 hops long. With this change, we include measurements
|
||||||
|
from all circuits at the point where they complete their third
|
||||||
|
hop. Fixes bug 23100; bugfix on 0.2.2.2-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (relay, crash, backport from 0.3.4.1-alpha):
|
||||||
|
- Avoid a crash when running with DirPort set but ORPort tuned off.
|
||||||
|
Fixes a case of bug 23693; bugfix on 0.3.1.1-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (Rust FFI):
|
||||||
|
- Fix a minor memory leak which would happen whenever the C code
|
||||||
|
would call the Rust implementation of
|
||||||
|
protover_get_supported_protocols(). This was due to the C version
|
||||||
|
returning a static string, whereas the Rust version newly allocated
|
||||||
|
a CString to pass accross the FFI boundary. Consequently, the C
|
||||||
|
code was not expecting to need to free() what it was given. Fixes
|
||||||
|
bug 25127; bugfix on 0.3.2.1-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (spelling):
|
||||||
|
- Use the "misspell" tool to detect and fix typos throughout the
|
||||||
|
source code. Fixes bug 23650; bugfix on various versions of Tor.
|
||||||
|
Patch from Deepesh Pathak.
|
||||||
|
|
||||||
|
o Minor bugfixes (testing):
|
||||||
|
- Avoid intermittent test failures due to a test that had relied on
|
||||||
|
onion service introduction point creation finishing within 5
|
||||||
|
seconds of real clock time. Fixes bug 25450; bugfix
|
||||||
|
on 0.3.1.3-alpha.
|
||||||
|
- Give out Exit flags in bootstrapping networks. Fixes bug 24137;
|
||||||
|
bugfix on 0.2.3.1-alpha.
|
||||||
|
|
||||||
|
o Minor bugfixes (unit test, monotonic time):
|
||||||
|
- Increase a constant (1msec to 10msec) in the monotonic time test
|
||||||
|
that makes sure the nsec/usec/msec times read are synchronized.
|
||||||
|
This change was needed to accommodate slow systems like armel or
|
||||||
|
when the clock_gettime() is not a VDSO on the running kernel.
|
||||||
|
Fixes bug 25113; bugfix on 0.2.9.1.
|
||||||
|
|
||||||
|
o Code simplification and refactoring:
|
||||||
|
- Move the list of default directory authorities to its own file.
|
||||||
|
Closes ticket 24854. Patch by "beastr0".
|
||||||
|
- Remove the old (deterministic) directory retry logic entirely:
|
||||||
|
We've used exponential backoff exclusively for some time. Closes
|
||||||
|
ticket 23814.
|
||||||
|
- Remove the unused nodelist_recompute_all_hsdir_indices(). Closes
|
||||||
|
ticket 25108.
|
||||||
|
- Remove a series of counters used to track circuit extend attempts
|
||||||
|
and connection status but that in reality we aren't using for
|
||||||
|
anything other than stats logged by a SIGUSR1 signal. Closes
|
||||||
|
ticket 25163.
|
||||||
|
- Remove /usr/athena from search path in configure.ac. Closes
|
||||||
|
ticket 24363.
|
||||||
|
- Remove duplicate code in node_has_curve25519_onion_key() and
|
||||||
|
node_get_curve25519_onion_key(), and add a check for a zero
|
||||||
|
microdesc curve25519 onion key. Closes ticket 23966, patch by
|
||||||
|
"aruna1234" and teor.
|
||||||
|
- Rewrite channel_rsa_id_group_set_badness to reduce temporary
|
||||||
|
memory allocations with large numbers of OR connections (e.g.
|
||||||
|
relays). Closes ticket 24119.
|
||||||
|
- Separate the function that deletes ephemeral files when Tor
|
||||||
|
stops gracefully.
|
||||||
|
- Small changes to Tor's buf_t API to make it suitable for use as a
|
||||||
|
general-purpose safe string constructor. Closes ticket 22342.
|
||||||
|
- Switch -Wnormalized=id to -Wnormalized=nfkc in configure.ac to
|
||||||
|
avoid source code identifier confusion. Closes ticket 24467.
|
||||||
|
- The tor_git_revision[] constant no longer needs to be redeclared
|
||||||
|
by everything that links against the rest of Tor. Done as part of
|
||||||
|
ticket 23845, to simplify our external API.
|
||||||
|
- We make extend_info_from_node() use node_get_curve25519_onion_key()
|
||||||
|
introduced in ticket 23577 to access the curve25519 public keys
|
||||||
|
rather than accessing it directly. Closes ticket 23760. Patch by
|
||||||
|
Neel Chauhan.
|
||||||
|
- Add a function to log channels' scheduler state changes to aid
|
||||||
|
debugging efforts. Closes ticket 24531.
|
||||||
|
|
||||||
|
o Documentation:
|
||||||
|
- Improved the documentation of AccountingStart parameter. Closes
|
||||||
|
ticket 23635.
|
||||||
|
- Update the documentation for "Log" to include the current list of
|
||||||
|
logging domains. Closes ticket 25378.
|
||||||
|
- Add documentation on how to build tor with Rust dependencies
|
||||||
|
without having to be online. Closes ticket 22907; bugfix
|
||||||
|
on 0.3.0.3-alpha.
|
||||||
|
- Clarify the behavior of RelayBandwidth{Rate,Burst} with client
|
||||||
|
traffic. Closes ticket 24318.
|
||||||
|
- Document that OutboundBindAddress doesn't apply to DNS requests.
|
||||||
|
Closes ticket 22145. Patch from Aruna Maurya.
|
||||||
|
|
||||||
|
o Code simplification and refactoring (channels):
|
||||||
|
- Remove the incoming and outgoing channel queues. These were never
|
||||||
|
used, but still took up a step in our fast path.
|
||||||
|
- The majority of the channel unit tests have been rewritten and the
|
||||||
|
code coverage has now been raised to 83.6% for channel.c. Closes
|
||||||
|
ticket 23709.
|
||||||
|
- Remove other dead code from the channel subsystem: All together,
|
||||||
|
this cleanup has removed more than 1500 lines of code overall and
|
||||||
|
adding very little except for unit test.
|
||||||
|
|
||||||
|
o Code simplification and refactoring (circuit rendezvous):
|
||||||
|
- Split the client-side rendezvous circuit lookup into two
|
||||||
|
functions: one that returns only established circuits and another
|
||||||
|
that returns all kinds of circuits. Closes ticket 23459.
|
||||||
|
|
||||||
|
o Code simplification and refactoring (controller):
|
||||||
|
- Make most of the variables in networkstatus_getinfo_by_purpose()
|
||||||
|
const. Implements ticket 24489.
|
||||||
|
|
||||||
|
o Documentation (backport from 0.3.4.1-alpha):
|
||||||
|
- Correct an IPv6 error in the documentation for ExitPolicy. Closes
|
||||||
|
ticket 25857. Patch from "CTassisF".
|
||||||
|
|
||||||
|
o Documentation (man page):
|
||||||
|
- The HiddenServiceVersion torrc option accepts only one number:
|
||||||
|
either version 2 or 3. Closes ticket 25026; bugfix
|
||||||
|
on 0.3.2.2-alpha.
|
||||||
|
|
||||||
|
o Documentation (manpage, denial of service):
|
||||||
|
- Provide more detail about the denial-of-service options, by
|
||||||
|
listing each mitigation and explaining how they relate. Closes
|
||||||
|
ticket 25248.
|
||||||
|
|
||||||
|
|
||||||
Changes in version 0.3.1.10 - 2018-03-03
|
Changes in version 0.3.1.10 - 2018-03-03
|
||||||
Tor 0.3.1.10 backports a number of bugfixes, including important fixes for
|
Tor 0.3.1.10 backports a number of bugfixes, including important fixes for
|
||||||
security issues.
|
security issues.
|
||||||
|
|
Loading…
Reference in New Issue