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mirror repository of the tor core protocol in case of issues
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David Goulet bbe90e3ec1 hs-v2: Always check rend_cache validity before using it 
When looking up an entry in the rend_cache, stop asserting that it exists but
rather confirm it exists and if not, return that no entry was found.

The reason for that is because the hs_circ_cleanup_on_free() function (which
can end up looking at the rend_cache) can be called from the
circuit_free_all() function that is called _after_ the rend cache is cleaned
up in tor_free_all().

We could fix the free all ordering but then it will just hide a future bug.
Instead, handle a missing rend_cache as a valid use case as in while we are in
the cleanup process.

As Tor becomes more modular, it is getting more and more difficult to ensure
subsystem callstack ordering thus this fix aims at making the HSv2 subsystem
more robust at being called while tor is pretty much in any kind of state.

Fixes #32847.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-01-13 09:25:26 -05:00
changes Merge branch 'disable_ns_macro' 2020-01-09 16:02:41 -05:00
contrib python: Add __future__ imports for python 3 compatibility 2019-12-12 15:58:51 +10:00
doc Merge branch 'ticket22029_attempt_squashed' 2020-01-09 15:27:32 -05:00
m4 Print summary at the end of the configure script 2019-10-17 10:08:34 -04:00
scripts Makefile/git scripts: Add comments to keep owned file lists in sync 2019-12-20 09:35:18 +10:00
src hs-v2: Always check rend_cache validity before using it 2020-01-13 09:25:26 -05:00
.appveyor.yml Merge branch 'maint-0.3.5' into maint-0.4.0 2019-11-11 14:19:39 +10:00
.editorconfig Add .editorconfig to follow coding standards style 2018-06-17 19:24:40 -04:00
.gitignore Move unit-parsing code to src/lib/confmgt 2019-06-24 15:11:57 -04:00
.gitlab-ci.yml Fix spelling mistakes corresponding to ticket #23650 2018-02-07 10:41:57 -05:00
.gitmodules Update the .gitmodules to refer to project-level tor-rust-dependencies 2018-02-21 11:53:04 -05:00
.travis.yml Merge branch 'maint-0.4.0' into maint-0.4.1 2019-12-20 10:12:43 +10:00
acinclude.m4 Bump copyright date to 2019 2019-01-16 12:33:22 -05:00
autogen.sh Cleanup shellcheck warnings in autogen.sh 2019-01-18 13:49:30 +02:00
ChangeLog Copy forward the changelogs and releasenotes for today's releases. 2019-12-09 11:55:14 -05:00
CODE_OF_CONDUCT Add CODE_OF_CONDUCT file 2018-07-05 11:22:33 +03:00
config.rust.in Make the rust tests link. 2018-07-31 19:46:00 -04:00
configure.ac bump to 0.4.2.5-dev 2019-12-09 16:03:31 -05:00
CONTRIBUTING Add CODE_OF_CONDUCT file 2018-07-05 11:22:33 +03:00
Doxyfile.in Doxyfile: skip CHECK_PRINTF() 2019-12-08 22:40:00 -06:00
INSTALL Remove old instructions from INSTALL 2018-07-03 16:34:52 +03:00
LICENSE clarify that tor's license is free software 2019-08-23 21:52:33 -04:00
Makefile.am Makefile/git scripts: Add comments to keep owned file lists in sync 2019-12-20 09:35:18 +10:00
Makefile.nmake Clean up the MVSC nmake files so they work again. 2014-09-09 10:27:05 -04:00
README doc: Put the release timeline link in README 2017-11-08 10:44:00 -05:00
ReleaseNotes Copy forward the changelogs and releasenotes for today's releases. 2019-12-09 11:55:14 -05:00
warning_flags.in Try @warning_flags to avoid bloating verbose make logs 2018-12-21 10:00:23 -05:00

README 

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.

To build Tor from source:
        ./configure && make && make install

To build Tor from a just-cloned git repository:
        sh autogen.sh && ./configure && make && make install

Home page:
        https://www.torproject.org/

Download new versions:
        https://www.torproject.org/download/download.html

Documentation, including links to installation and setup instructions:
        https://www.torproject.org/docs/documentation.html

Making applications work with Tor:
        https://wiki.torproject.org/projects/tor/wiki/doc/TorifyHOWTO

Frequently Asked Questions:
        https://www.torproject.org/docs/faq.html


To get started working on Tor development:
        See the doc/HACKING directory.

Release timeline:
         https://trac.torproject.org/projects/tor/wiki/org/teams/NetworkTeam/CoreTorReleases