Commit 87f12997 authored by Nick Mathewson's avatar Nick Mathewson 🎃
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changelog: small edits

parent 2d8090fc
......@@ -6,47 +6,50 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
the integration tests. (Python 2 is officially unsupported
upstream, as of 1 Jan 2020.) Closes ticket 32608.
 
o Major feature (onion service, SOCKS5):
- Introduce a new SocksPort flag named: ExtendedErrors. Detailed in
proposal 304, a number of onion service error codes are now sent
back, if this flag is set, with the SOCKS5 protocol using new
custom error values. Closes ticket 30382;
o Major features (build system):
- Create an optional relay module, which can be disabled using the
--disable-module-relay configure option. When it is set, also
disable the dirauth module. Add a minimal implemention, which
disables the relay and dircache modes in tor. Closes ticket 32123.
o Major features (controller):
- New ONION_CLIENT_AUTH_ADD control port command to add client-side
onion service client authorization credentials. Closes part of
ticket 30381.
- New ONION_CLIENT_AUTH_REMOVE control port command to remove
client-side onion service client authorization credentials. Closes
part of ticket 30381.
- New ONION_CLIENT_AUTH_VIEW control port command to view stored
client-side onion service client authorization credentials. Closes
part of ticket 30381.
- The relay code can now be disabled using the --disable-module-relay
configure option. When this option is set, we also disable the
dirauth module. Closes ticket 32123.
- When Tor is compiled --disable-module-relay, we also omit the code
used to act as a directory cache. Closes ticket 32487.
 
o Major features (directory authority, ed25519):
- Add support for banning a relay's ed25519 keys in the approved-
routers file. This will allow us to migrate away from RSA keys in
the future. Previously, only RSA keys could be banned in approved-
routers file. This will help us migrate away from RSA keys in the
future. Previously, only RSA keys could be banned in approved-
routers. Resolves ticket 22029. Patch by Neel Chauhan.
 
o Major features (documentation):
- Provide a Circuit Padding Framework quickstart guide and developer
documentation for researchers to implement and study Circuit
Padding machines. Closes ticket 28804.
o Major features (onion service, controller):
- New control port commands to manage client-side onion service
authorization credentials. The ONION_CLIENT_AUTH_ADD command adds
a credential, ONION_CLIENT_AUTH_REMOVE deletes a credential, and
ONION_CLIENT_AUTH_VIEW lists the credentials. Closes ticket 30381.
o Major features (onion service, SOCKS5):
- Introduce a new SocksPort flag, ExtendedErrors, to support more
detailed error codes in information for applications that support
them. Closes ticket 30382; implements proposal 304.
 
o Major features (proxy):
- In addition to HTTP CONNECT, SOCKS4, and SOCKS5, Tor can make all
OR connections through the HAProxy server. A new torrc option was
added to specify the address/port of the server: TCPProxy
<protocol> <host>:<port>. Currently the only supported protocol in
the option is haproxy. Close ticket 31518. Patch done by Suphanat
Chunhapanya (haxxpop).
- In addition to its current supported proxy types (HTTP CONNECT,
SOCKS4, and SOCKS5), Tor can now make its OR connections through a
HAProxy server. A new torrc option was added to specify the
address/port of the server: TCPProxy <protocol> <host>:<port>.
Currently the only supported protocol for the option is haproxy.
Close ticket 31518. Patch done by Suphanat Chunhapanya (haxxpop).
o Major bugfixes (linux seccomp sandbox):
- Correct how we use libseccomp. Particularly, stop assuming that
rules are applied in a particular order or that more rules are
processed after the first match. Neither is the case! In
libseccomp <2.4.0 this lead to some rules having no effect.
Libseccomp 2.4.0 changed how rules are generated leading to a
different ordering which in turn lead to a fatal crash during
startup. Fixes bug 29819; bugfix on 0.2.5.1-alpha. Patch by
Peter Gerber.
- Fix crash when reloading logging configuration while the
experimental sandbox is enabled. Fixes bug 32841; bugfix on
0.4.1.7. Patch by Peter Gerber.
 
o Major bugfixes (networking):
- Correctly handle IPv6 addresses in SOCKS5 RESOLVE_PTR requests,
......@@ -58,11 +61,11 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
take appropriate action with regards to the client introduction
point failure cache. This improves reachability of onion services,
since now clients notice failing introduction circuits properly.
Fixes bug 32020; bugfix on 0.3.2.1-alpha;
Fixes bug 32020; bugfix on 0.3.2.1-alpha.
 
o Minor feature (configure, build system):
- Output enabled/disabled features at the end of the configure
process in a pleasing way. Closes ticket 31373.
- Output a list of enabled/disabled features at the end of the
configure process in a pleasing way. Closes ticket 31373.
 
o Minor feature (heartbeat, onion service):
- Add the DoS INTRODUCE2 defenses counter to the heartbeat DoS
......@@ -75,18 +78,14 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
Closes ticket 31241.
 
o Minor features (configuration):
- If the configured hardware crypto accelerator in AccelName is
- If a configured hardware crypto accelerator in AccelName is
prefixed with "!", Tor now exits when it cannot be found. Closes
ticket 32406.
- We use a flag-driven logic to warn about obsolete configuration
- We now use flag-driven logic to warn about obsolete configuration
fields, so that we can include their names. In 0.4.2, we used a
special type, which prevented us from generating good warnings.
Implements ticket 32404.
 
o Minor features (continuous integration):
- Call the check_cocci_parse.sh script from Travis CI. Closes
ticket 31919.
o Minor features (controller):
- Add stream isolation data to STREAM event. Closes ticket 19859.
- Implement a new GETINFO command to fetch microdescriptor
......@@ -98,19 +97,21 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
this happened. Diagnostic for ticket 32868.
 
o Minor features (defense in depth):
- Add additional sanity checks around tor_vasprintf() usage in case
the function returns an error. Patch by Tobias Stoeckmann. Fixes
- Add additional checks around tor_vasprintf() usage, in case the
function returns an error. Patch by Tobias Stoeckmann. Fixes
ticket 31147.
 
o Minor features (developer tooling):
- Remove 0.2.9 series branches from git scripts (git-merge-
- Remove the 0.2.9.x series branches from git scripts (git-merge-
forward.sh, git-pull-all.sh, git-push-all.sh, git-setup-dirs.sh).
Closes ticket 32772.
 
o Minor features (developer tools):
- Add a check_cocci_parse.sh script that checks that new code is
parseable by Coccinelle. Add an exceptions file for unparseable
files. Closes ticket 31919.
files, and run the script from travis CI. Closes ticket 31919.
- Call the check_cocci_parse.sh script from a 'check-cocci' Makefile
target. Closes ticket 31919.
- Add a rename_c_identifiers.py tool to rename a bunch of C
identifiers at once, and generate a well-formed commit message
describing the change. This should help with refactoring. Closes
......@@ -119,23 +120,15 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
semantic patching tool with the correct flags. These flags are
fairly easy to forget, and these scripts should help us use
Coccinelle more effectively in the future. Closes ticket 31705.
- Call the check_cocci_parse.sh script from a 'check-cocci' Makefile
target. Closes ticket 31919.
o Minor features (disabling relay support):
- When Tor is compiled --disable-module-relay, we also omit the code
used to act as a directory cache. Closes ticket 32487.
o Minor features (documentation):
- Make sure that doxygen outputs documentation for all of our C
files. Previously, some were missing @file declarations, causing
them to be ignored. Closes ticket 32307.
 
o Minor features (Doxygen):
- Update Doxygen configuration file to a more recent template (from
1.8.15). Closes ticket 32110.
- "make doxygen" now works with out-of-tree builds. Closes
ticket 32113.
- Make sure that doxygen outputs documentation for all of our C
files. Previously, some were missing @file declarations, causing
them to be ignored. Closes ticket 32307.
- Our "make doxygen" target now respects --enable-fatal-warnings by
default, and does not warn about items that are missing
documentation. To warn about missing documentation, run configure
......@@ -171,61 +164,58 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
and/or pwdb, which Android doesn't have. Closes ticket 32825.
Patch from Hans-Christoph Steiner.
 
o Minor features (relay module):
o Minor features (relay modularity):
- Split the relay and server pluggable transport config code into
separate files in the relay module. Disable this code when the
relay module is disabled. Closes ticket 32213.
relay module is disabled. Closes part of ticket 32213.
- When the relay module is disabled, reject attempts to set the
ORPort, DirPort, DirCache, BridgeRelay, ExtORPort, or
ServerTransport* options, rather than ignoring the values of these
options. Closes ticket 32213.
options. Closes part of ticket 32213.
 
o Minor features (relay):
- When the relay module is disabled, change the default config so
that DirCache is 0, and ClientOnly is 1. Closes ticket 32410.
 
o Minor features (release tools):
- Port our changelog formatting and sorting tools to Python 3.
- Port our ChangeLog formatting and sorting tools to Python 3.
Closes ticket 32704.
 
o Minor features (testing):
- Add common failure cases for test_parseconf.sh in
- Detect some common failure cases for test_parseconf.sh in
src/test/conf_failures. Closes ticket 32451.
- Allow test_parseconf.sh to test expected log outputs for successful
configs, as well as failed configs. Closes ticket 32451.
- test_parseconf.sh now supports result variants for any combination
of the optional libraries lzma, nss, and zstd. Closes ticket 32397.
- The test_parseconf.sh script now supports result variants for any
combination of the optional libraries lzma, nss, and zstd. Closes
ticket 32397.
 
o Minor features (tests, Android):
- When running the unit tests on Android, create temporary files in
a subdirectory of /data/local/tmp. Closes ticket 32172. Based on a
patch from Hans-Christoph Steiner.
 
o Minor bugfix (configuration):
- Check for multiplication overflow when parsing memory units inside
configuration. Fixes bug 30920; bugfix on 0.0.9rc1~46.
o Minor bugfixes (bridges):
- Lowercase the value of BridgeDistribution from torrc before adding
- Lowercase the configured value of BridgeDistribution before adding
it to the descriptor. Fixes bug 32753; bugfix on 0.3.2.3-alpha.
 
o Minor bugfixes (build):
o Minor bugfixes (build system):
- Fix "make autostyle" for out-of-tree builds. Fixes bug 32370;
bugfix on 0.4.1.2-alpha.
 
o Minor bugfixes (config):
- When dumping the config, stop adding a trailing space after the
option name, when there is no option value. This issue only
affects options that accept an empty value or list. (Most options
reject empty values, or delete the entire line from the dumped
options.) Fixes bug 32352; bugfix on 0.0.9pre6.
o Minor bugfixes (configuration handling):
- Make control_event_conf_changed() take in a config_line_t instead
of a smartlist(k, v, k, v, ...) where keys are followed by values.
Fixes bug 31531; bugfix on 0.2.3.3-alpha. Patch by Neel Chauhan.
of a smartlist of alternating key/value entries. Fixes bug 31531;
bugfix on 0.2.3.3-alpha. Patch by Neel Chauhan.
 
o Minor bugfixes (configuration):
- Check for multiplication overflow when parsing memory units inside
configuration. Fixes bug 30920; bugfix on 0.0.9rc1.
- When dumping the configuration, stop adding a trailing space after
the option name when there is no option value. This issue only
affects options that accept an empty value or list. (Most options
reject empty values, or delete the entire line from the dumped
options.) Fixes bug 32352; bugfix on 0.0.9pre6.
- Avoid changing the user's value of HardwareAccel as stored by
SAVECONF, when AccelName is set but HardwareAccel is not. Fixes
bug 32382; bugfix on 0.2.2.1-alpha.
......@@ -275,19 +265,6 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
issue with that flag and the map. Fixes bug 32094; bugfix
on 0.3.2.1-alpha.
 
o Minor bugfixes (linux seccomp sandbox):
- Correct how we use libseccomp. Particularly, stop assuming that
rules are applied in a particular order or that more rules are
processed after the first match. Neither is the case! In
libseccomp <2.4.0 this lead to some rules having no effect.
Libseccomp 2.4.0 changed how rules are generated leading to a
different ordering which in turn lead to a fatal crash during
startup. Fixes bug 29819; bugfix on 0.2.5.1-alpha. Patch by
Peter Gerber.
- Fix crash when reloading logging configuration while the
experimental sandbox is enabled. Fixes bug 32841; bugfix on
0.4.1.7. Patch by Peter Gerber.
o Minor bugfixes (logging, crash):
- Avoid a possible crash when trying to log a (fatal) assertion
failure about mismatched magic numbers in configuration objects.
......@@ -301,12 +278,11 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
Neel Chauhan.
 
o Minor bugfixes (onion services v3, client):
- Properly handle the client rendezvous circuit timeout. This
results in better reachability because tor doesn't timeout a
rendezvous circuit awaiting the introduction ACK and thus
preventing tor to re-establish all circuits because the rendezvous
circuit timed out too early. Fixes bug 32021; bugfix
on 0.3.2.1-alpha.
- Properly handle the client rendezvous circuit timeout. Previously
Tor would sometimes timeout a rendezvous circuit awaiting the
introduction ACK, and find itself unable to re-establish all
circuits because the rendezvous circuit timed out too early. Fixes
bug 32021; bugfix on 0.3.2.1-alpha.
 
o Minor bugfixes (onion services):
- In cancel_descriptor_fetches(), use
......@@ -321,7 +297,7 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
o Minor bugfixes (test):
- Use the same code to find the tor binary in all of our test
scripts. This change makes sure we are always using the coverage
binary, when coverage is enabled. Fixes bug 32368; bugfix
binary when coverage is enabled. Fixes bug 32368; bugfix
on 0.2.7.3-rc.
 
o Minor bugfixes (testing):
......@@ -342,69 +318,18 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
verbosity. Fixes bug 32175; bugfix on 0.2.8.1-alpha.
 
o Minor bugfixes (windows service):
- Initialize publish/subscribe system when running as a windows
- Initialize the publish/subscribe system when running as a windows
service. Fixes bug 32778; bugfix on 0.4.1.1-alpha.
 
o Code simplification and refactoring:
- Add numerous missing dependencies to our include files, so that
they can be included in different reasonable orders and still
compile. Addresses part of ticket 32764.
- Create a new abstraction for formatting control protocol reply
lines based on key-value pairs. Refactor some existing control
protocol code to take advantage of this. Closes ticket 30984.
- Disable relay_periodic when the relay module is disabled. Closes
ticket 32244.
- Disable relay_sys when the relay module is disabled. Closes
ticket 32245.
- Fix some parts of our code that were difficult for Coccinelle to
parse. Related to ticket 31705.
- Fix some small issues in our code that prevented automatic
formatting tools from working. Addresses part of ticket 32764.
- Immutability is now implemented as a flag on individual
configuration options rather than as part of the option-transition
checking code. Closes ticket 32344.
- Instead of keeping a list of configuration options to check for
relative paths, check all the options whose type is "FILENAME".
Solves part of ticket 32339.
- Make all the structs we declare follow the same naming convention
of ending with "_t". Closes ticket 32415.
- Move and rename some configuration-related code for clarity.
Closes ticket 32304.
- Our default log (which ordinarily sends NOTICE-level message to
standard output) is now handled in a more logical manner.
Previously, we replaced the configured log options if they were
empty. Now, we interpret an empty set of log options as meaning
"use the default log". Closes ticket 31999.
- Our include.am files are now broken up by subdirectory.
Previously, src/core/include.am covered all of the subdirectories
in "core", "feature", and "app". Closes ticket 32137.
- Remove some unused arguments from the options_validate() function,
to simplify our code and tests. Closes ticket 32187.
- Remove the last remaining HAVE_MODULE_DIRAUTH inside a function.
Closes ticket 32163.
- Remove underused NS*() macros from test code: they make our tests
more confusing, especially for code-formatting tools. Closes
ticket 32887.
- Replace some confusing identifiers in process_descs.c. Closes
ticket 29826.
- Simplify some relay and dirauth config code. Closes ticket 32213.
- Simplify the options_validate() code so that it looks at the
default options directly, rather than taking default options as an
argument. This change lets us simplify its interface. Closes
ticket 32185.
- Use our new configuration architecture to move most authority-
related options to the directory authority module. Closes
ticket 32806.
- When parsing the command line, handle options that determine our
"quiet level" and our mode of operation (e.g., --dump-config and
so on) all in one table. Closes ticket 32003.
o Deprecated features:
- Deprecate the ClientAutoIPv6ORPort option. This option was not
true Happy Eyeballs, and often failed on connections that weren't
reliably dual-stack. Closes ticket 32942. Patch by Neel Chauhan.
 
o Documentation:
- Provide a quickstart guide for our a Circuit Padding Framework,
and documentation for researchers to implement and study circuit
padding machines. Closes ticket 28804.
- Add documentation in 'HelpfulTools.md' to describe how to build a
tag file. Closes ticket 32779.
- Create a high-level description of the long-term software
......@@ -449,10 +374,72 @@ Changes in version 0.4.3.1-alpha - 2020-01-2?
- Channel layer had a variable length cell handler that was not used
and thus removed. Closes ticket 32892.
 
o Code simplification and refactoring (configuration):
- Immutability is now implemented as a flag on individual
configuration options rather than as part of the option-transition
checking code. Closes ticket 32344.
- Instead of keeping a list of configuration options to check for
relative paths, check all the options whose type is "FILENAME".
Solves part of ticket 32339.
- Our default log (which ordinarily sends NOTICE-level message to
standard output) is now handled in a more logical manner.
Previously, we replaced the configured log options if they were
empty. Now, we interpret an empty set of log options as meaning
"use the default log". Closes ticket 31999.
- Remove some unused arguments from the options_validate() function,
to simplify our code and tests. Closes ticket 32187.
- Simplify the options_validate() code so that it looks at the
default options directly, rather than taking default options as an
argument. This change lets us simplify its interface. Closes
ticket 32185.
- Use our new configuration architecture to move most authority-
related options to the directory authority module. Closes
ticket 32806.
- When parsing the command line, handle options that determine our
"quiet level" and our mode of operation (e.g., --dump-config and
so on) all in one table. Closes ticket 32003.
o Code simplification and refactoring (controller):
- Create a new abstraction for formatting control protocol reply
lines based on key-value pairs. Refactor some existing control
protocol code to take advantage of this. Closes ticket 30984.
- Create a helper function that can fetch network status or
microdesc consensuses. Closes ticket 31684.
 
o Code simplification and refactoring (dirauth modularization):
- Remove the last remaining HAVE_MODULE_DIRAUTH inside a function.
Closes ticket 32163.
- Replace some confusing identifiers in process_descs.c. Closes
ticket 29826.
- Simplify some relay and dirauth config code. Closes ticket 32213.
o Code simplification and refactoring (misc):
- Make all the structs we declare follow the same naming convention
of ending with "_t". Closes ticket 32415.
- Move and rename some configuration-related code for clarity.
Closes ticket 32304.
- Our include.am files are now broken up by subdirectory.
Previously, src/core/include.am covered all of the subdirectories
in "core", "feature", and "app". Closes ticket 32137.
- Remove underused NS*() macros from test code: they make our tests
more confusing, especially for code-formatting tools. Closes
ticket 32887.
o Code simplification and refactoring (relay modularization):
- Disable relay_periodic when the relay module is disabled. Closes
ticket 32244.
- Disable relay_sys when the relay module is disabled. Closes
ticket 32245.
o Code simplification and refactoring (tool support):
- Add numerous missing dependencies to our include files, so that
they can be included in different reasonable orders and still
compile. Addresses part of ticket 32764.
- Fix some parts of our code that were difficult for Coccinelle to
parse. Related to ticket 31705.
- Fix some small issues in our code that prevented automatic
formatting tools from working. Addresses part of ticket 32764.
o Documentation (manpage):
- Alphabetize the Client Options section of the tor manpage. Closes
ticket 32846.
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