Commit 1f4a7a4b authored by Nick Mathewson's avatar Nick Mathewson 👁
Browse files

Run format-changelog, add a stub blurb.

parent cbd3b018
Changes in version 0.4.2.1-alpha - 2019-09-??
This is the first alpha release in the 0.4.2.x series. BLURB
BLURB BLURB.
o New system requirements (build system):
- Do not include the deprecated <sys/sysctl.h> on Linux or Windows
system. Closes 31673;
 
o Major features (developer tools):
- Our best-practices tracker now integrates with our include-checker tool
to keep track of the layering violations that we have not yet fixed.
We hope to reduce this number over time to improve Tor's modularity.
Closes ticket 31176.
- Our best-practices tracker now integrates with our include-checker
tool to keep track of the layering violations that we have not yet
fixed. We hope to reduce this number over time to improve Tor's
modularity. Closes ticket 31176.
 
o Major features (onion service v3, denial of service):
- Add onion service introduction denial of service defenses. They consist of
rate limiting client introduction at the intro point using parameters that
can be sent by the service within the ESTABLISH_INTRO cell. If the cell
extension for this is not used, the intro point will honor the consensus
parameters. Closes ticket 30924.
- Add onion service introduction denial of service defenses. They
consist of rate limiting client introduction at the intro point
using parameters that can be sent by the service within the
ESTABLISH_INTRO cell. If the cell extension for this is not used,
the intro point will honor the consensus parameters. Closes
ticket 30924.
 
o Major bugfixes (circuit build, guard):
- When considering upgrading circuits from "waiting for guard" to "open",
always ignore the ones that are mark for close. Else, we can end up in
the situation where a subsystem is notified of that circuit opening but
still marked for close leading to undesirable behavior. Fixes bug 30871;
bugfix on 0.3.0.1-alpha.
- When considering upgrading circuits from "waiting for guard" to
"open", always ignore the ones that are mark for close. Else, we
can end up in the situation where a subsystem is notified of that
circuit opening but still marked for close leading to undesirable
behavior. Fixes bug 30871; bugfix on 0.3.0.1-alpha.
 
o Major bugfixes (crash, android):
- Tolerate systems (including some Android installations) where madvise
and MADV_DONTDUMP are available at build-time, but not at run time.
Previously, these systems would notice a failed syscall and abort.
Fixes bug 31570; bugfix on 0.4.1.1-alpha.
- Tolerate systems (including some Android installations) where
madvise and MADV_DONTDUMP are available at build-time, but not at
run time. Previously, these systems would notice a failed syscall
and abort. Fixes bug 31570; bugfix on 0.4.1.1-alpha.
 
o Major bugfixes (crash, Linux):
- Tolerate systems (including some Linux installations) where madvise
and/or MADV_DONTFORK are available at build-time, but not at run time.
Previously, these systems would notice a failed syscall and abort.
Fixes bug 31696; bugfix on 0.4.1.1-alpha.
- Tolerate systems (including some Linux installations) where
madvise and/or MADV_DONTFORK are available at build-time, but not
at run time. Previously, these systems would notice a failed
syscall and abort. Fixes bug 31696; bugfix on 0.4.1.1-alpha.
 
o Minor feature (onion service v3):
- Do not allow single hop client to fetch or post an HS descriptor from an
HSDir. Closes ticket 24964;
- Do not allow single hop client to fetch or post an HS descriptor
from an HSDir. Closes ticket 24964;
 
o Minor feature (onion service):
- Disallow single hop clients to introduce directly at the introduction
point. We've removed Tor2web a while back and rendezvous are blocked at
the relays. This is to remove load off the network from spammy clients.
Close ticket 24963.
- Disallow single hop clients to introduce directly at the
introduction point. We've removed Tor2web a while back and
rendezvous are blocked at the relays. This is to remove load off
the network from spammy clients. Close ticket 24963.
 
o Minor feature (token bucket):
- Implement a generic token bucket that uses a single counter. This will be
useful for the anti-DoS onion service work. Closes ticket 30687.
- Implement a generic token bucket that uses a single counter. This
will be useful for the anti-DoS onion service work. Closes
ticket 30687.
 
o Minor features (best practices tracker):
- Add a TOR_PRACTRACKER_OPTIONS variable for passing arguments
to practracker from the environment. We may want this for
continuous integration. Closes ticket 31309.
- Give a warning rather than an error when a practracker exception is
violated by a small amount; add a --list-overbroad option to
practracker that lists exceptions that are stricter than they need to
be, and provide an environment variable for disabling
- Add a TOR_PRACTRACKER_OPTIONS variable for passing arguments to
practracker from the environment. We may want this for continuous
integration. Closes ticket 31309.
- Give a warning rather than an error when a practracker exception
is violated by a small amount; add a --list-overbroad option to
practracker that lists exceptions that are stricter than they need
to be, and provide an environment variable for disabling
practracker. Closes ticekt 30752.
 
o Minor features (build system):
- Add --disable-manpage and --disable-html-manual options to configure
script. This will enable shortening build times by not building
documentation. Resolves issue 19381.
- Add --disable-manpage and --disable-html-manual options to
configure script. This will enable shortening build times by not
building documentation. Resolves issue 19381.
 
o Minor features (compilation):
- Log a more useful error message when we are compiling and one of the
compile-time hardening options we have selected can be linked but
not executed. Closes ticket 27530.
- Log a more useful error message when we are compiling and one of
the compile-time hardening options we have selected can be linked
but not executed. Closes ticket 27530.
 
o Minor features (configuration):
- The configuration code has been extended to allow splitting
configuration data across multiple objects. Previously, all
configuration data needed to be kept in a single object, which
tended to become bloated. Closes ticket 31240.
tended to become bloated. Closes ticket 31240.
 
o Minor features (continuous integration):
- When running CI builds on Travis, put some random data in ~/.torrc,
to make sure no tests are dependent on default Tor configuration.
Resolves issue 30102.
- When running CI builds on Travis, put some random data in
~/.torrc, to make sure no tests are dependent on default Tor
configuration. Resolves issue 30102.
 
o Minor features (debugging):
- Log a nonfatal assertion failure if we encounter a configuration
line whose command is "CLEAR" but which has a nonempty value.
This should be impossible, according to the rules of our
configuration line parsing. Closes ticket 31529.
line whose command is "CLEAR" but which has a nonempty value. This
should be impossible, according to the rules of our configuration
line parsing. Closes ticket 31529.
 
o Minor features (development tools):
- Our best-practices tracker now looks at headers as well as
C files. Closes ticket 31175.
- Our best-practices tracker now looks at headers as well as C
files. Closes ticket 31175.
 
o Minor features (git hooks):
- Our pre-commit git hook now checks for a special file
before running practracker, so that practracker only runs on branches
that are based on master. Since the pre-push hook calls the pre-commit
hook, practracker will also only run before pushes of branches based
on master.
Closes ticket 30979.
- Our pre-commit git hook now checks for a special file before
running practracker, so that practracker only runs on branches
that are based on master. Since the pre-push hook calls the pre-
commit hook, practracker will also only run before pushes of
branches based on master. Closes ticket 30979.
 
o Minor features (git scripts):
- Add a "--" command-line argument, to
separate git-push-all.sh script arguments from arguments that are passed
through to git push. Closes ticket 31314.
- Add a -r <remote-name> argument to git-push-all.sh, so the script can
push test branches to a personal remote. Closes ticket 31314.
- Add a "--" command-line argument, to separate git-push-all.sh
script arguments from arguments that are passed through to git
push. Closes ticket 31314.
- Add a -r <remote-name> argument to git-push-all.sh, so the script
can push test branches to a personal remote. Closes ticket 31314.
- Add a -t <test-branch-prefix> argument to git-merge-forward.sh and
git-push-all.sh, which makes these scripts create, merge forward, and
push test branches. Closes ticket 31314.
- Add a -u argument to git-merge-forward.sh, so that the script can re-use
existing test branches after a merge failure and fix.
git-push-all.sh, which makes these scripts create, merge forward,
and push test branches. Closes ticket 31314.
- Add a -u argument to git-merge-forward.sh, so that the script can
re-use existing test branches after a merge failure and fix.
Closes ticket 31314.
- Add a TOR_GIT_PUSH env var, which sets the default git push command and
arguments for git-push-all.sh. Closes ticket 31314.
- Add a TOR_PUSH_DELAY variable to git-push-all.sh, which makes the script
push master and maint branches with a delay between each branch. These
delays trigger the CI jobs in a set order, which should show the most
likely failures first. Also make pushes atomic by default, and make
the script pass any command-line arguments to git push.
Closes ticket 29879.
- Call the shellcheck script from the pre-commit hook.
Closes ticket 30967.
- Add a TOR_GIT_PUSH env var, which sets the default git push
command and arguments for git-push-all.sh. Closes ticket 31314.
- Add a TOR_PUSH_DELAY variable to git-push-all.sh, which makes the
script push master and maint branches with a delay between each
branch. These delays trigger the CI jobs in a set order, which
should show the most likely failures first. Also make pushes
atomic by default, and make the script pass any command-line
arguments to git push. Closes ticket 29879.
- Call the shellcheck script from the pre-commit hook. Closes
ticket 30967.
- Skip pushing test branches that are the same as a remote
maint/release/master branch in git-push-all.sh by default. Add a -s
argument, so git-push-all.sh can push all test branches.
Closes ticket 31314.
maint/release/master branch in git-push-all.sh by default. Add a
-s argument, so git-push-all.sh can push all test branches. Closes
ticket 31314.
 
o Minor features (IPv6, logging):
- Log IPv6 addresses as well as IPv4 addresses, when describing
routerinfos, routerstatuses, and nodes. Closes ticket 21003.
 
o Minor features (recommended packages):
- No longer include recommended packages in votes as detailed in proposal
301. The RecommendedPackages torrc option is deprecated and will no
longer have any effect. "package" lines will still be considered when
computing consensuses for consensus methods that include them. Fixes
ticket 29738.
- No longer include recommended packages in votes as detailed in
proposal 301. The RecommendedPackages torrc option is deprecated
and will no longer have any effect. "package" lines will still be
considered when computing consensuses for consensus methods that
include them. Fixes ticket 29738.
 
o Minor features (stem tests):
- Change "make test-stem" so it only runs the stem tests that use tor.
This change makes test-stem faster and more reliable.
Closes ticket 31554.
- Change "make test-stem" so it only runs the stem tests that use
tor. This change makes test-stem faster and more reliable. Closes
ticket 31554.
 
o Minor features (testing):
- Add a script to invoke "tor --dump-config" and "tor --verify-config"
with various configuration options, and see whether tor's resulting
configuration or error messages are what we expect. Use it for
integration testing of our +Option and /Option flags.
Closes ticket 31637.
- Add a script to invoke "tor --dump-config" and "tor
--verify-config" with various configuration options, and see
whether tor's resulting configuration or error messages are what
we expect. Use it for integration testing of our +Option and
/Option flags. Closes ticket 31637.
- Improve test coverage for our existing configuration parsing and
management API. Closes ticket 30893.
 
o Minor features (tests):
- Add integration tests to make sure that practracker gives the outputs
we expect. Closes ticket 31477.
- Add integration tests to make sure that practracker gives the
outputs we expect. Closes ticket 31477.
- The practracker tests are now run as part of the Tor test suite.
Closes ticket 31304.
 
o Minor bugfixes (best practices tracker):
- Fix a few issues in the best-practices script, including tests, tab
tolerance, error reporting, and directory-exclusion logic. Fixes bug
29746; bugfix on 0.4.1.1-alpha.
- Fix a few issues in the best-practices script, including tests,
tab tolerance, error reporting, and directory-exclusion logic.
Fixes bug 29746; bugfix on 0.4.1.1-alpha.
 
o Minor bugfixes (chutney, makefiles, documentation):
- "make test-network-all" shows the warnings from each test-network.sh
run on the console, so developers see new warnings early. Improve the
documentation for this feature, and rename a Makefile variable so the
code is self-documenting. Fixes bug 30455; bugfix on 0.3.0.4-rc.
- "make test-network-all" shows the warnings from each test-
network.sh run on the console, so developers see new warnings
early. Improve the documentation for this feature, and rename a
Makefile variable so the code is self-documenting. Fixes bug
30455; bugfix on 0.3.0.4-rc.
 
o Minor bugfixes (compilation):
- Add more stub functions to fix compilation on Android with LTO, when
--disable-module-dirauth is used. Previously, these compilation
settings would make the compiler look for functions that didn't exist.
Fixes bug 31552; bugfix on 0.4.1.1-alpha.
- Add more stub functions to fix compilation on Android with LTO,
when --disable-module-dirauth is used. Previously, these
compilation settings would make the compiler look for functions
that didn't exist. Fixes bug 31552; bugfix on 0.4.1.1-alpha.
 
o Minor bugfixes (configuration):
- Invalid floating-point values in the configuration file are now
detected treated as errors in the configuration. Previously, they
were ignored and treated as zero. Fixes bug 31475; bugfix on
0.0.1.
were ignored and treated as zero. Fixes bug 31475; bugfix
on 0.0.1.
 
o Minor bugfixes (coverity compliance):
- Add an assertion when parsing a BEGIN cell so that coverity can be sure
that we are not about to dereference a NULL address.
Fixes bug 31026; bugfix on 0.2.4.7-alpha. This is CID
1447296.
- Add an assertion when parsing a BEGIN cell so that coverity can be
sure that we are not about to dereference a NULL address. Fixes
bug 31026; bugfix on 0.2.4.7-alpha. This is CID 1447296.
 
o Minor bugfixes (coverity):
- In our siphash implementation, when building for coverity, use memcpy
in place of a switch statement, so that coverity can tell we are not
accessing out-of-bounds memory. Fixes bug 31025; bugfix on
0.2.8.1-alpha. This is tracked as CID 1447293 and 1447295.
- In our siphash implementation, when building for coverity, use
memcpy in place of a switch statement, so that coverity can tell
we are not accessing out-of-bounds memory. Fixes bug 31025; bugfix
on 0.2.8.1-alpha. This is tracked as CID 1447293 and 1447295.
 
o Minor bugfixes (coverity, tests):
- Fix several coverity warnings from our unit tests. Fixes bug 31030;
bugfix on 0.2.4.1-alpha, 0.3.2.1-alpha, and 0.4.0.1-alpha.
- Fix several coverity warnings from our unit tests. Fixes bug
31030; bugfix on 0.2.4.1-alpha, 0.3.2.1-alpha, and 0.4.0.1-alpha.
 
o Minor bugfixes (developer tooling):
- Only log git script changes in post-merge script when merge was to the
master branch. Fixes bug 31040; bugfix on 0.4.1.1-alpha.
- Only log git script changes in post-merge script when merge was to
the master branch. Fixes bug 31040; bugfix on 0.4.1.1-alpha.
 
o Minor bugfixes (directory authorities):
- Return a distinct status when formatting annotations fails.
Fixes bug 30780; bugfix on 0.2.0.8-alpha.
- Return a distinct status when formatting annotations fails. Fixes
bug 30780; bugfix on 0.2.0.8-alpha.
 
o Minor bugfixes (error handling):
- On abort, try harder to flush the output buffers of log messages. On
some platforms (macOS), log messages can be discarded when the process
terminates. Fixes bug 31571; bugfix on 0.3.5.1-alpha.
- Report the tor version whenever an assertion fails. Previously, we only
reported the Tor version on some crashes, and some non-fatal assertions.
Fixes bug 31571; bugfix on 0.3.5.1-alpha.
- On abort, try harder to flush the output buffers of log messages.
On some platforms (macOS), log messages can be discarded when the
process terminates. Fixes bug 31571; bugfix on 0.3.5.1-alpha.
- Report the tor version whenever an assertion fails. Previously, we
only reported the Tor version on some crashes, and some non-fatal
assertions. Fixes bug 31571; bugfix on 0.3.5.1-alpha.
- When tor aborts due to an error, close log file descriptors before
aborting. Closing the logs makes some OSes flush log file buffers,
rather than deleting buffered log lines. Fixes bug 31594;
bugfix on 0.2.5.2-alpha.
rather than deleting buffered log lines. Fixes bug 31594; bugfix
on 0.2.5.2-alpha.
 
o Minor bugfixes (git hooks):
- Remove a duplicate call to practracker from the pre-push hook.
The pre-push hook already calls the pre-commit hook, which calls
- Remove a duplicate call to practracker from the pre-push hook. The
pre-push hook already calls the pre-commit hook, which calls
practracker. Fixes bug 31462; bugfix on 0.4.1.1-alpha.
 
o Minor bugfixes (git scripts):
- Stop hard-coding the bash path in the git scripts. Some OSes don't
have bash in /usr/bin, others have an ancient bash at this path.
Fixes bug 30840; bugfix on 0.4.0.1-alpha.
- Stop hard-coding the tor master branch name and worktree path in the
git scripts. Fixes bug 30841; bugfix on 0.4.0.1-alpha.
- Stop hard-coding the tor master branch name and worktree path in
the git scripts. Fixes bug 30841; bugfix on 0.4.0.1-alpha.
 
o Minor bugfixes (guards):
- When tor is missing descriptors for some primary entry guards, make the
log message less alarming. It's normal for descriptors to expire, as long
as tor fetches new ones soon after. Fixes bug 31657;
bugfix on 0.3.3.1-alpha.
- When tor is missing descriptors for some primary entry guards,
make the log message less alarming. It's normal for descriptors to
expire, as long as tor fetches new ones soon after. Fixes bug
31657; bugfix on 0.3.3.1-alpha.
 
o Minor bugfixes (ipv6):
- We check for private IPv6 address alongside their IPv4 equivalents when
authorities check descriptors. Previously, we only checked for private
IPv4 addresses. Fixes bug 31088; bugfix on 0.2.3.21-rc. Patch by Neel
Chauhan.
- When parsing microdescriptors, we should check the IPv6 exit policy
alongside IPv4. Previously, we checked both exit policies for only
router info structures, while microdescriptors were IPv4-only. Fixes
bug 27284; bugfix on 0.2.3.1-alpha. Patch by Neel Chauhan.
- We check for private IPv6 address alongside their IPv4 equivalents
when authorities check descriptors. Previously, we only checked
for private IPv4 addresses. Fixes bug 31088; bugfix on
0.2.3.21-rc. Patch by Neel Chauhan.
- When parsing microdescriptors, we should check the IPv6 exit
policy alongside IPv4. Previously, we checked both exit policies
for only router info structures, while microdescriptors were
IPv4-only. Fixes bug 27284; bugfix on 0.2.3.1-alpha. Patch by
Neel Chauhan.
 
o Minor bugfixes (logging):
- Change log level of message "Hash of session info was not as expected"
to LOG_PROTOCOL_WARN. Fixes bug 12399; bugfix on 0.1.1.10-alpha.
- Fix a code issue that would have broken our parsing of log
domains as soon as we had 33 of them. Fortunately, we still
only have 29. Fixes bug 31451; bugfix on 0.4.1.4-rc.
- Change log level of message "Hash of session info was not as
expected" to LOG_PROTOCOL_WARN. Fixes bug 12399; bugfix
on 0.1.1.10-alpha.
- Fix a code issue that would have broken our parsing of log domains
as soon as we had 33 of them. Fortunately, we still only have 29.
Fixes bug 31451; bugfix on 0.4.1.4-rc.
 
o Minor bugfixes (memory management):
- Stop leaking a small amount of memory in nt_service_install(), in
unreachable code. Fixes bug 30799; bugfix on 0.2.0.7-alpha.
Patch by Xiaoyin Liu.
unreachable code. Fixes bug 30799; bugfix on 0.2.0.7-alpha. Patch
by Xiaoyin Liu.
 
o Minor bugfixes (networking, IP addresses):
- When parsing addreses via Tor's internal DNS lookup API, reject IPv4
addresses in square brackets, and accept IPv6 addresses in square
brackets. This change completes the work started in 23082, making
address parsing consistent between tor's internal DNS lookup and address
parsing APIs. Fixes bug 30721; bugfix on 0.2.1.5-alpha.
- When parsing addreses via Tor's internal DNS lookup API, reject
IPv4 addresses in square brackets, and accept IPv6 addresses in
square brackets. This change completes the work started in 23082,
making address parsing consistent between tor's internal DNS
lookup and address parsing APIs. Fixes bug 30721; bugfix
on 0.2.1.5-alpha.
- When parsing addreses via Tor's internal address:port parsing and
DNS lookup APIs, require IPv6 addresses with ports to have square
brackets. But allow IPv6 addresses without ports, whether or not they
have square brackets. Fixes bug 30721; bugfix on 0.2.1.5-alpha.
brackets. But allow IPv6 addresses without ports, whether or not
they have square brackets. Fixes bug 30721; bugfix
on 0.2.1.5-alpha.
 
o Minor bugfixes (onion service v3):
- When purging the client descriptor cache, always also close any
introduction point circuits associated with it. This avoids picking those
when connecting to them later while not having the descriptor to complete
the introduction. Fixes bug 30921; bugfix on 0.3.2.1-alpha.
introduction point circuits associated with it. This avoids
picking those when connecting to them later while not having the
descriptor to complete the introduction. Fixes bug 30921; bugfix
on 0.3.2.1-alpha.
 
o Minor bugfixes (onion services):
- In the hs_ident_circuit_t data structure, remove the unused field
......@@ -277,128 +289,127 @@ Changes in version 0.4.2.1-alpha - 2019-09-??
bug 31490; bugfix on 0.3.2.1-alpha. Patch by Neel Chauhan.
 
o Minor bugfixes (operator tools):
- Make tor-print-ed-signing-cert(1) print certificate expiration date in
RFC 1123 and UNIX timestamp formats, to make output machine readable.
Fixes bug 31012; bugfix on 0.3.5.1-alpha.
- Make tor-print-ed-signing-cert(1) print certificate expiration
date in RFC 1123 and UNIX timestamp formats, to make output
machine readable. Fixes bug 31012; bugfix on 0.3.5.1-alpha.
 
o Minor bugfixes (practracker):
- When running check-best-practices, only consider files in the
src subdirectory. Previously we had recursively considered
all subdirectories, which made us get confused by the
temporary directories made by "make distcheck". Fixes bug
31578; bugfix on 0.4.1.1-alpha.
- When running check-best-practices, only consider files in the src
subdirectory. Previously we had recursively considered all
subdirectories, which made us get confused by the temporary
directories made by "make distcheck". Fixes bug 31578; bugfix
on 0.4.1.1-alpha.
 
o Minor bugfixes (rust):
- Correctly exclude a redundant rust build job in Travis. Fixes bug 31463;
bugfix on 0.3.5.4-alpha.
- Correctly exclude a redundant rust build job in Travis. Fixes bug
31463; bugfix on 0.3.5.4-alpha.
- Raise the minimum rustc version to 1.31.0, as checked by configure
and CI. Fixes bug 31442; bugfix on 0.3.5.4-alpha.
 
o Minor bugfixes (sendme, code structure):
- Rename the trunnel SENDME file definition from sendme.trunnel to
sendme_cell.trunnel to avoid having twice sendme.{c|h} in the repository.
Fixes bug 30769; bugfix on 0.4.1.1-alpha.
sendme_cell.trunnel to avoid having twice sendme.{c|h} in the
repository. Fixes bug 30769; bugfix on 0.4.1.1-alpha.
 
o Minor bugfixes (statistics):
- Stop removing the ed25519 signature if the extra info file is too big.
If the signature data was removed, but the keyword was kept, this could
result in an unparseable extra info file. Fixes bug 30958;
bugfix on 0.2.7.2-alpha.
- Stop removing the ed25519 signature if the extra info file is too
big. If the signature data was removed, but the keyword was kept,
this could result in an unparseable extra info file. Fixes bug
30958; bugfix on 0.2.7.2-alpha.
 
o Minor bugfixes (subsystems):
- Make the subsystem init order match the subsystem module dependencies.
Call windows process security APIs as early as possible. Init log before
network and time, so that network and time can use logging.
Fixes bug 31615; bugfix on 0.4.0.1-alpha.
- Make the subsystem init order match the subsystem module
dependencies. Call windows process security APIs as early as
possible. Init log before network and time, so that network and
time can use logging. Fixes bug 31615; bugfix on 0.4.0.1-alpha.
 
o Minor bugfixes (testing):
- Teach the util/socketpair_ersatz test to work correctly when we
have no network stack configured. Fixes bug 30804; bugfix on
0.2.5.1-alpha.
have no network stack configured. Fixes bug 30804; bugfix
on 0.2.5.1-alpha.
 
o Minor bugfixes (v2 single onion services):
- Always retry v2 single onion service intro and rend circuits with a
3-hop path. Previously, v2 single onion services used a 3-hop path
when rend circuits were retried after a remote or delayed failure,
but a 1-hop path for immediate retries. Fixes bug 23818;
- Always retry v2 single onion service intro and rend circuits with
a 3-hop path. Previously, v2 single onion services used a 3-hop
path when rend circuits were retried after a remote or delayed
failure, but a 1-hop path for immediate retries. Fixes bug 23818;
bugfix on 0.2.9.3-alpha.
 
o Minor bugfixes (v3 single onion services):
- Always retry v3 single onion service intro and rend circuits with a
3-hop path. Previously, v3 single onion services used a 3-hop path
when rend circuits were retried after a remote or delayed failure,
but a 1-hop path for immediate retries. Fixes bug 23818;
- Always retry v3 single onion service intro and rend circuits with
a 3-hop path. Previously, v3 single onion services used a 3-hop
path when rend circuits were retried after a remote or delayed
failure, but a 1-hop path for immediate retries. Fixes bug 23818;
bugfix on 0.3.2.1-alpha.
- Make v3 single onion services fall back to a 3-hop intro, when there
all intro points are unreachable via a 1-hop path. Previously, v3
single onion services failed when all intro nodes were unreachable
via a 1-hop path. Fixes bug 23507; bugfix on 0.3.2.1-alpha.
- Make v3 single onion services fall back to a 3-hop intro, when
there all intro points are unreachable via a 1-hop path.
Previously, v3 single onion services failed when all intro nodes
were unreachable via a 1-hop path. Fixes bug 23507; bugfix
on 0.3.2.1-alpha.
 
o Code simplification and refactoring:
- Eliminate some uses of lower-level control reply abstractions,
primarily in the onion_helper functions. Closes ticket 30889.
- Extract our variable manipulation code from confparse.c to a new
lower-level typedvar.h module. Closes ticket 30864.
- Improve documentation in circuit padding subsystem. Patch by Tobias
Pulls. Closes ticket 31113.
- Lower another layer of object management from confparse.c to
a more general tool. Now typed structure members are accessible
via an abstract type. Implements ticket 30914.
- Improve documentation in circuit padding subsystem. Patch by
Tobias Pulls. Closes ticket 31113.
- Lower another layer of object management from confparse.c to a
more general tool. Now typed structure members are accessible via
an abstract type. Implements ticket 30914.
- Move our backend logic for working with configuration and state
files into a lower-level library, since in no longer depends on
any tor-specific functionality. Closes ticket 31626.
- Numerous simplifications in configuration-handling logic:
remove duplicated macro definitions, replace magical names
with flags, and refactor "TestingTorNetwork" to use the
same default-option logic as the rest of Tor.
Closes ticket 30935.
- Numerous simplifications in configuration-handling logic: remove
duplicated macro definitions, replace magical names with flags,
and refactor "TestingTorNetwork" to use the same default-option
logic as the rest of Tor. Closes ticket 30935.
- Replace our ad-hoc set of flags for configuration variables and
configuration variable types with fine-grained orthogonal flags
corresponding to the actual behavior we want. Closes ticket 31625.
- Rework bootstrap tracking to use the new publish-subscribe
subsystem. Closes ticket 29976.
- Rewrite format_node_description() and router_get_verbose_nickname() to
use strlcpy() and strlcat(). The previous implementation used memcpy()
and pointer arithmetic, which was error-prone.
Closes ticket 31545. This is CID 1452819.
- Split extrainfo_dump_to_string() into smaller functions.
Closes ticket 30956.
- Use the ptrdiff_t type consistently for expressing variable offsets and
pointer differences. Previously we incorrectly (but harmlessly) used
int and sometimes off_t for these cases. Closes ticket 31532.
- Rewrite format_node_description() and router_get_verbose_nickname()
to use strlcpy() and strlcat(). The previous implementation used
memcpy() and pointer arithmetic, which was error-prone. Closes
ticket 31545. This is CID 1452819.
- Split extrainfo_dump_to_string() into smaller functions. Closes
ticket 30956.
- Use the ptrdiff_t type consistently for expressing variable
offsets and pointer differences. Previously we incorrectly (but
harmlessly) used int and sometimes off_t for these cases. Closes
ticket 31532.
- Use the subsystems mechanism to manage the main event loop code.
Closes ticket 30806.
- Various simplifications and minor improvements to the circuit padding
machines. Patch by Tobias Pulls. Closes tickets 31112 and 31098.
o Documentation (hard-coded directories):
- Improve the documentation for the DirAuthority and FallbackDir torrc
options. Closes ticket 30955.
o Documentation (tor.1 man page):
- Fix typo -help to --help in tor.1 man page. Fixes bug 31008; bugfix on
0.2.2.9-alpha.
- Various simplifications and minor improvements to the circuit
padding machines. Patch by Tobias Pulls. Closes tickets 31112
and 31098.
 
o Documentation:
- Include an example usage for IPv6 ORPort in our sample torrc.
Closes ticket 31320; patch from Ali Raheem.
- Use RFC 2397 data URL scheme to embed image into tor-exit-notice.html
so that operators would no longer have to host it themselves.
Closes ticket 31089.
o New system requirements (build system):
- Do not include the deprecated <sys/sysctl.h> on Linux or Windows system.
Closes 31673;
- Use RFC 2397 data URL scheme to embed image into tor-exit-
notice.html so that operators would no longer have to host it
themselves. Closes ticket 31089.
 
o Removed features:
- Remove torctl.in from contrib/dist directory. Resolves ticket 30550.
- Remove torctl.in from contrib/dist directory. Resolves
ticket 30550.
 
o Testing:
- Run shellcheck for all non-third-party shell scripts that are shipped
with Tor. Closes ticket 29533.
- Run shellcheck for all non-third-party shell scripts that are
shipped with Tor. Closes ticket 29533.
- When checking shell scripts, ignore any user-created directories.
Closes ticket 30967.
 
o Documentation (hard-coded directories):
- Improve the documentation for the DirAuthority and FallbackDir
torrc options. Closes ticket 30955.
o Documentation (tor.1 man page):
- Fix typo -help to --help in tor.1 man page. Fixes bug 31008;
bugfix on 0.2.2.9-alpha.
 
Changes in version 0.4.1.5 - 2019-08-20
This is the first stable release in the 0.4.1.x series. This series
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