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Signed-off-by: David Goulet <dgoulet@torproject.org>
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With this commit, we will only report a general overload state if we've
seen more than X% of DNS timeout errors over Y seconds. Previous
behavior was to report when a single timeout occured which is really too
small of a threshold.
The value X is a consensus parameters called
"overload_dns_timeout_scale_percent" which is a scaled percentage
(factor of 1000) so we can represent decimal points for X like 0.5% for
instance. Its default is 1000 which ends up being 1%.
The value Y is a consensus parameters called
"overload_dns_timeout_period_secs" which is the time period for which
will gather DNS errors and once over, we assess if that X% has been
reached ultimately triggering a general overload signal.
Closes #40491
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Now that we don't have version 2, it gives us:
[warn] HiddenServiceVersion must be between 3 and 3, not 2.
This commit changes it to:
[warn] HiddenServiceVersion must be 3, not 2.
Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Some tests were removed because they were testing something not usable
anymore.
Some tests remains to make sure that things are indeed disabled.
Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Relay do not accept both stores and lookups of version 2 descriptor.
This effectively disable version 2 HSDir supports for relays.
Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Upon receiving a v2 introduction request, the relay will close the
circuit and send back a tor protocol error.
Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
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The minimum service version is raised from 2 to 3 which effectively
disable loading or creating an onion service v2.
As for ADD_ONION, for version 2, a 551 error is returned:
"551 Failed to add Onion Service"
Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This effectively turns off the ability of tor to use HSv2 as a client by
invalidating the v2 onion hostname passed through a SOCKS request.
Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Closes #40474
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Closes #40474
Signed-off-by: David Goulet <dgoulet@torproject.org>
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When a directory request fails, we flag the relay as non Running so we
don't use it anymore.
This can be problematic with onion services because there are cases
where a tor instance could have a lot of services, ephemeral ones, and
keeps failing to upload descriptors, let say due to a bad network, and
thus flag a lot of nodes as non Running which then in turn can not be
used for circuit building.
This commit makes it that we never flag nodes as non Running on a onion
service directory request (upload or fetch) failure as to keep the
hashring intact and not affect other parts of tor.
Fortunately, the onion service hashring is _not_ selected by looking at
the Running flag but since we do a 3-hop circuit to the HSDir, other
services on the same instance can influence each other by removing nodes
from the consensus for path selection.
This was made apparent with a small network that ran out of nodes to
used due to rapid succession of onion services uploading and failing.
See #40434 for details.
Fixes #40434
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This will hopefully solve an issue where our gmtime related tests are
failing on 32-bit builds.
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Since we merged 40383, we don't expect these to give the same
warning on every platform.
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Fixes bug 40078.
As reported by hdevalence our batch verification logic can cause an assert
crash.
The assert happens because when the batch verification of ed25519-donna fails,
the code in `ed25519_checksig_batch()` falls back to doing a single
verification for each signature.
The crash occurs because batch verification failed, but then all signatures
individually verified just fine.
That's because batch verification and single verification use a different
equation which means that there are sigs that can pass single verification
but fail batch verification.
Fixing this would require modding ed25519-donna which is not in scope for
this ticket, and will be soon deprecated in favor of arti and
ed25519-dalek, so my branch instead removes batch verification.
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New list for all stable releases.
Closes #40447
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Fixes #40301
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Fixes #40301
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Continue having a tor_gmtime_impl() unit test so that we can detect
any problems in our replacement function; add a new test function to
make sure that gmtime<->timegm are a round-trip on now-ish times.
This is a fix for bug #40383, wherein we ran into trouble because
tor_timegm() does not believe that time_t should include a count of
leap seconds, but FreeBSD's gmtime believes that it should. This
disagreement meant that for a certain amount of time each day,
instead of calculating the most recent midnight, our voting-schedule
functions would calculate the second-most-recent midnight, and lead
to an assertion failure.
I am calling this a bugfix on 0.2.0.3-alpha when we first started
calculating our voting schedule in this way.
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My clang doesn't like it when we write code like this:
char *list[] = {
"abc",
"def",
"ghi"
"jkl"
}
It wonders whether we meant to put a comma between "ghi" and "jkl"
or not, and gives a warning.
To suppress this warning (since in this case, we did mean to omit
the comma), we just wrap the two strings in parentheses.
Closes #40426; bugfix on 0.4.0.4-rc.
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Fixes #40421
Signed-off-by: David Goulet <dgoulet@torproject.org>
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