Signed-off-by: David Goulet <dgoulet@torproject.org>
Signed-off-by: George Kadianakis <desnacked@riseup.net>

This commit makes it that tor now uses the shared random protocol by
initializing the subsystem.

Signed-off-by: David Goulet <dgoulet@torproject.org>
Signed-off-by: George Kadianakis <desnacked@riseup.net>

One of the last piece that parses the votes and consensus in order to update
our state and make decision for the SR values.

We need to inform the SR subsystem when we set the current consensus because
this can be called when loaded from file or downloaded from other authorities
or computed.

The voting schedule is used for the SR timings since we are bound to the
voting system.

Signed-off-by: David Goulet <dgoulet@torproject.org>
Signed-off-by: George Kadianakis <desnacked@riseup.net>

This commit adds the commit(s) line in the vote as well as the SR values. It
also has the mechanism to add the majority SRVs in the consensus.

Signed-off-by: George Kadianakis <desnacked@riseup.net>
Signed-off-by: David Goulet <dgoulet@torproject.org>

This adds the logic of commit and SR values generation. Furthermore, the
concept of a protocol run is added that is commit is generated at the right
time as well as SR values which are also rotated before a new protocol run.

Signed-off-by: George Kadianakis <desnacked@riseup.net>
Signed-off-by: David Goulet <dgoulet@torproject.org>

This commit introduces two new files with their header.

"shared_random.c" contains basic functions to initialize the state and allow
commit decoding for the disk state to be able to parse them from disk.

"shared_random_state.c" contains everything that has to do with the state
for both our memory and disk. Lots of helper functions as well as a
mechanism to query the state in a synchronized way.

Signed-off-by: David Goulet <dgoulet@torproject.org>
Signed-off-by: George Kadianakis <desnacked@riseup.net>

David Goulet authored 9 years ago and David Goulet committed 8 years ago

Signed-off-by: David Goulet <dgoulet@ev0ke.net>

Make sure to memset(0) the destination buffer so we don't leave any
uninitialized data.

Fixes #19462

Signed-off-by: David Goulet <dgoulet@torproject.org>

This hack provides a way to make sure we can see coverage from
test-switch-id.  If you set OVERRIDE_GCDA_PERMISSIONS_HACK, we
temporarily make the .gcda files mode 0666 before we run the
test scripts, and then we set them to 0644 again afterwards.

That's necessary because the test_switch_id.sh script does a
setuid() to 'nobody' part way through, and drops the ability to
change its mind back.

Yes, HURD lacks PATH_MAX.  But we already limited the maximum buffer
to 4096, so why not just use that?

Slow system can sometime take more than 10 seconds to reach the test
callsite resulting in the unit test failing when using time in the future or
in the past.

Fixes #19465

Signed-off-by: David Goulet <dgoulet@torproject.org>

nikkolasg authored 8 years ago and Nick Mathewson committed 8 years ago

base16_decodes() now returns the number of decoded bytes. It's interface
changes from returning a "int" to a "ssize_t". Every callsite now checks the
returned value.

Fixes #14013

Signed-off-by: David Goulet <dgoulet@torproject.org>

realloc()ing a thing in order to try to save memory on it just
doesn't make sense with today's allocators.  Instead, let's use the
fact that whenever we decompress something, either it isn't too big,
or we chop it up, or we reallocate it.

zlib 1.2 came out in 2003; earlier versions should be dead by now.

Our workaround code was only preventing us from using the gzip
encoding (if we decide to do so), and having some dead code linger
around in torgzip.c

Fixes bug 19153; patch from "U+039b", who is apparently an uppercase
lambda?

David Goulet authored 8 years ago and Nick Mathewson committed 8 years ago

Signed-off-by: David Goulet <dgoulet@torproject.org>

David Goulet authored 9 years ago and Nick Mathewson committed 8 years ago

Fixes #18280

Signed-off-by: David Goulet <dgoulet@ev0ke.net>

cypherpunks authored 8 years ago and Nick Mathewson committed 8 years ago

The Autoconf macro AC_USE_SYSTEM_EXTENSIONS defines preprocessor macros
which turn on extensions to C and POSIX. The macro also makes it easier
for developers to use the extensions without needing (or forgetting) to
define them manually.

The macro can be safely used because it was introduced in Autoconf 2.60
and Tor requires Autoconf 2.63 and above.

All of our code just uses parse_config_line_from_str_verbose.

Also, add tests for it in case someday it does become reachable.

I'm not angry, Windows: just very disappointed.

When deleting an ephemeral HS, we were only iterating on circuit with an
OPEN state. However, it could be possible that an intro point circuit didn't
reached the open state yet.

This commit makes it that we close the circuit regardless of its state
except if it was already marked for close.

Fixes #18604

Signed-off-by: David Goulet <dgoulet@torproject.org>