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Nick Mathewson f5acfe6723 Add a sandbox workaround for Glibc 2.33
This change permits the newfstatat() system call, and fixes issues
40382 (and 40381).

This isn't a free change.  From the commit:

    // Libc 2.33 uses this syscall to implement both fstat() and stat().
    //
    // The trouble is that to implement fstat(fd, &st), it calls:
    //     newfstatat(fs, "", &st, AT_EMPTY_PATH)
    // We can't detect this usage in particular, because "" is a pointer
    // we don't control.  And we can't just look for AT_EMPTY_PATH, since
    // AT_EMPTY_PATH only has effect when the path string is empty.
    //
    // So our only solution seems to be allowing all fstatat calls, which
    // means that an attacker can stat() anything on the filesystem. That's
    // not a great solution, but I can't find a better one.
2021-05-07 12:12:11 -04:00
changes Add a sandbox workaround for Glibc 2.33 2021-05-07 12:12:11 -04:00
contrib Bump to 0.4.5.8. 2021-05-07 09:39:33 -04:00
doc Fix documentation formatting for VirtualAddrNetworkIPv6 2021-03-08 11:17:24 -05:00
m4 Fix typos. 2020-11-12 11:44:09 -05:00
scripts scripts/build/combine_libs: use $AR rather than ar 2021-04-19 11:28:20 -04:00
src Add a sandbox workaround for Glibc 2.33 2021-05-07 12:12:11 -04:00
.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 Merge branch 'maint-0.4.4' into maint-0.4.5 2021-01-21 16:18:43 -05:00
.gitlab-ci.yml Fix typos. 2020-11-12 11:44:09 -05:00
.gitmodules Update the .gitmodules to refer to project-level tor-rust-dependencies 2018-02-21 11:53:04 -05:00
.travis.yml Add test for torrc %include functionality and seccomp sandbox 2020-07-15 22:01:08 +01:00
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 Correct EOL date for 0.4.3.x 2020-11-12 09:42:54 -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 0.4.5.8. 2021-05-07 09:39:33 -04:00
CONTRIBUTING Add CODE_OF_CONDUCT file 2018-07-05 11:22:33 +03:00
Doxyfile.in Add correct exclusions to Doxyfile.in. 2020-07-07 10:24:24 -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 Merge branch 'maint-0.4.4' into maint-0.4.5 2021-01-21 16:07:16 -05:00
Makefile.nmake Clean up the MVSC nmake files so they work again. 2014-09-09 10:27:05 -04:00
README Use correct URL for CoreTorReleases in README. 2020-08-11 18:43:33 -04:00
ReleaseNotes Correct EOL date for 0.4.3.x 2020-11-12 09:42:54 -05:00
warning_flags.in Try @warning_flags to avoid bloating verbose make logs 2018-12-21 10:00:23 -05:00

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://gitlab.torproject.org/legacy/trac/-/wikis/doc/TorifyHOWTO

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

Release timeline:
        https://gitlab.torproject.org/tpo/core/team/-/wikis/NetworkTeam/CoreTorReleases

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