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Micah Elizabeth Scott 3036bedf30 Update CI builds to Debian Bullseye, fix associated compatibility bugs 
This is a change intended for 0.4.7 maintenance as well as main.

The CI builds use Debian Buster which is now end of life, and I was
experiencing inconsistent CI failures with accessing its security update
server. I wanted to update CI to a distro that isn't EOL, and Bullseye
is the current stable release of Debian.

This opened up a small can of worms that this commit also deals with.
In particular there's a docker engine bug that we work around by
removing the docker-specific apt cleanup script if it exists, and
there's a new incompatibility between tracing and sandbox support.

The tracing/sandbox incompatibility itself had two parts:

  - The membarrier() syscall is used to deliver inter-processor
    synchronization events, and the external "userspace-rcu"
    data structure library would make assumptions that if membarrier
    is available at initialization it always will be. This caused
    segfaults in some cases when running trace + sandbox. Resolved this
    by allowing membarrier entirely, in the sandbox.

  - userspace-rcu also assumes it can block signals, and fails
    hard if this can't be done. We already include a similar carveout
    to allow this in the sandbox for fragile-hardening, so I extended
    that to cover tracing as well.

Addresses issue #40799

Signed-off-by: Micah Elizabeth Scott <beth@torproject.org>
2023-05-31 11:08:27 -07:00
.gitlab/issue_templates Remove Proposal.md. 2021-02-12 20:39:48 +00:00
changes Merge branch 'tor-gitlab/mr/687' into maint-0.4.7 2023-01-26 13:11:18 -05:00
contrib version: Bump version to 0.4.7.13-dev 2023-01-12 12:09:34 -05:00
doc man: Fix typo for AuthDirMiddleOnly option 2022-08-09 11:01:12 -04:00
m4 Add the compiler name, version and libs used to compile 2020-11-17 10:43:00 +01:00
scripts shellcheck: Fix new warnings 2023-01-10 09:11:58 -05:00
src Update CI builds to Debian Bullseye, fix associated compatibility bugs 2023-05-31 11:08:27 -07:00
.appveyor.yml CI: Remove VS2015 AppVeyor build 2020-08-12 14:09:32 +03:00
.clang-format Add a dire warning about not reformatting the whole codebase yet. 2020-02-12 18:52:35 -05:00
.editorconfig Add .editorconfig to follow coding standards style 2018-06-17 19:24:40 -04:00
.gitignore rust: Remove Rust support from tree 2021-10-06 15:12:04 -04:00
.gitlab-ci.yml Update CI builds to Debian Bullseye, fix associated compatibility bugs 2023-05-31 11:08:27 -07:00
.travis.yml rust: Remove Rust support from tree 2021-10-06 15:12:04 -04:00
acinclude.m4 m4: Change LIBS order of TOR_SEARCH_LIBRARY() 2021-01-13 09:52:10 -05:00
autogen.sh Cleanup shellcheck warnings in autogen.sh 2019-01-18 13:49:30 +02:00
ChangeLog release: ChangeLog and ReleaseNotes for 0.4.7.8 2022-06-17 10:10:16 -04:00
CODE_OF_CONDUCT Add CODE_OF_CONDUCT file 2018-07-05 11:22:33 +03:00
configure.ac version: Bump version to 0.4.7.13-dev 2023-01-12 12:09:34 -05:00
CONTRIBUTING Add CODE_OF_CONDUCT file 2018-07-05 11:22:33 +03:00
Doxyfile.in Remove last artifacts of Rust related code 2021-10-06 15:12:04 -04:00
INSTALL Remove old instructions from INSTALL 2018-07-03 16:34:52 +03:00
LICENSE Merge branch 'maint-0.3.5' into maint-0.4.4 2021-03-12 11:36:34 -05:00
Makefile.am makefile: New README.md file name 2022-02-07 10:07:33 -05:00
Makefile.nmake Clean up the MVSC nmake files so they work again. 2014-09-09 10:27:05 -04:00
README.md readme: Fix sentence in Releases section 2022-03-09 14:13:34 -05:00
ReleaseNotes release: ChangeLog and ReleaseNotes for 0.4.7.8 2022-06-17 10:10:16 -04:00
warning_flags.in Try @warning_flags to avoid bloating verbose make logs 2018-12-21 10:00:23 -05:00

README.md

Tor protects your privacy on the internet by hiding the connection between your Internet address and the services you use. We believe Tor is reasonably secure, but please ensure you read the instructions and configure it properly.

Build

To build Tor from source:

./configure
make
make install

To build Tor from a just-cloned git repository:

./autogen.sh
./configure
make
make install

Releases

The tarballs, checksums and signatures can be found here: https://dist.torproject.org

  • Checksum: <tarball-name>.sha256sum
  • Signatures: <tarball-name>.sha256sum.asc

Schedule

You can find our release schedule here:

Keys that CAN sign a release

The following keys are the maintainers of this repository. One or many of these keys can sign the releases, do NOT expect them all:

Development

See our hacking documentation in doc/HACKING/.

Resources

Home page:

Download new versions:

Documentation, including links to installation and setup instructions:

Frequently Asked Questions: