RENDEZVOUS1 cell is 84 bytes long in v3 and 168 bytes long in v2 so this
commit pads with random bytes the v3 cells up to 168 bytes so they all look
alike at the rendezvous point.
Closes#23420
Signed-off-by: David Goulet <dgoulet@torproject.org>
This warning is caused by a different tv_usec data type on macOS
compared to the system on which the patch was developed.
Fixes 23575 on 0.3.2.1-alpha.
An unnecessary routerlist check in the NETINFO clock skew detection in
channel_tls_process_netinfo_cell() was preventing clients from
reporting NETINFO clock skew to controllers.
This patch replaces a few calls to router_get_by_id_digest ("do we
have a routerinfo?") with connection_or_digest_is_known_relay ("do
we know this relay to be in the consensus, or have been there some
time recently?").
Found while doing the 21585 audit; fixes bug 23533. Bugfix on
0.3.0.1-alpha.
Make download status next attempts reported over the control port
consistent with the time used by tor. This issue only occurs if a
download status has not been reset before it is queried over the
control port.
Fixes 23525, not in any released version of tor.
If future code asks if there are any running bridges, without checking
if bridges are enabled, log a BUG warning rather than crashing.
Fixes 23524 on 0.3.0.1-alpha
Directory servers now include a "Date:" http header for response
codes other than 200. Clients starting with a skewed clock and a
recent consensus were getting "304 Not modified" responses from
directory authorities, so without a Date header the client would
never hear about a wrong clock.
Fixes bug 23499; bugfix on 0.0.8rc1.
This change refactors find_dl_schedule() to only call dependent functions
as needed. In particular, directory_fetches_from_authorities() only needs
to be called on clients.
Stopping spurious directory_fetches_from_authorities() calls on every
download on public relays has the following impacts:
* fewer address resolution attempts, particularly those mentioned in 21789
* fewer descriptor rebuilds
* fewer log messages, particularly those limited in 20610
Fixes 23470 in 0.2.8.1-alpha.
The original bug was introduced in commit 35bbf2e as part of prop210.
OpenBSD doesn't like tricks where you use a too-wide sscanf argument
for a too-narrow array, even when you know the input string
statically. The fix here is just to use bigger buffers.
Fixes 15582; bugfix on a3dafd3f58 in 0.2.6.2-alpha.
But when clients are just starting, make them try each bridge a few times
before giving up on it.
These changes make the bridge download schedules more explicit: before
17750, they relied on undocumented behaviour and specific schedule
entries. (And between 17750 and this fix, they were broken.)
Fixes 23347, not in any released version of tor.
The download schedule tells Tor to wait 15 minutes before downloading
bridge descriptors. But 17750 made Tor ignore that and start immediately.
Since we fixed 17750, Tor waits 15 minutes for bridge client bootstrap,
like the schedule says.
This fixes the download schedule to start immediately, and to try each
bridge 3 times in the first 30 seconds. This should make bridge bootstraps
more reliable.
Fixes 23347.
When option validation or transition is happening, there are no
"current options" -- only "old options" and "maybe new options".
Looking at get_options() is likely a mistake, so have a nonfatal
assertion let us know if we do that.
Closes 22281.
Undeprecate it;
rename it to TestingClientDNSRejectInternalAddresses;
add the old name as an alias;
reject configurations where it is set but TestingTorNetwork is not;
change the documentation accordingly.
Closes tickets 21031 and 21522.
There are two reasons this is likeliest to happen -- no kernel
support, and some bug in Tor. We'll ask people to check the former
before they report. Closes 23090.
The chdir() call in RunAsDaemon makes the behavior here surprising,
and either way of trying to resolve the surprise seems sure to
startle a significant fraction of users. Instead, let's refuse to
guess, and refuse these configurations.
Closes ticket 22731.
The function was never returning an error code on failure to parse the
OutboundAddress* options.
In the process, it was making our test_options_validate__outbound_addresses()
not test the right thing.
Fixes#23366
Signed-off-by: David Goulet <dgoulet@torproject.org>
Some parentheses were missing making the rend_max_intro_circs_per_period()
return a lower value than it was suppose to.
The calculation is that a service at most will open a number of intro points
that it wants which is 3 by default or HiddenServiceNumIntroductionPoints. Two
extra are launched for performance reason. Finally, this can happen twice for
two descriptors for the current and next time period.
From:
2 * n_intro_wanted + 2
...which resulted in 8 for 3 intro points, this commit fixes it to:
(n_intro_wanted + 2) * 2
... resulting in 12 possible intro point circuit which is the correct maximum
intro circuit allowed per period.
Last, this commit rate limits the the log message if we ever go above that
limit else over a INTRO_CIRC_RETRY_PERIOD, we can print it often!
Fixes#22159
Signed-off-by: David Goulet <dgoulet@torproject.org>
We removed this documentation in 607724c696, when we removed
Naming Authoritative Directories, but actually this file is still
used by authorities to indicate rejected and invalid fingerprints.
Closes ticket 21148.
This change should improve overhead for downloading small numbers of
descriptors and microdescriptors by improving compression
performance and lowering directory request overhead.
Closes ticket 23220.
The old implementation would fail with super-long inputs. We never
gave it any, but still, it's nicer to dtrt here.
Reported by Guido Vranken. Fixes bug 19281.
Fixes bug 23106; bugfix on 0.2.4.8-alpha.
Fortunately, we only support big-endian and little-endian platforms,
and on both of those, hton*() and ntoh*() behave the same. And if
we did start to support middle endian systems (haha, no), most of
_those_ have hton*(x) == ntoh*(x) too.
Since we start with desc_clean_since = 0, we should have been
starting with non-null desc_dirty_reason.
Fixes bug 22884; bugfix on 0.2.3.4-alpha when X-Desc-Gen-Reason was
added.
Patch from Vort; fixes bug 23081; bugfix on fd992deeea in
0.2.1.16-rc when set_main_thread() was introduced.
See the changes file for a list of all the symptoms this bug has
been causing when running Tor as a Windows Service.
The condition was always true meaning that we would reconsider updating our
directory information every 2 minutes.
If valid_until is 6am today, then now - 24h == 1pm yesterday which means that
"valid_until < (now - 24h)" is false. But at 6:01am tomorrow, "valid_until <
(now - 24h)" becomes true which is that point that we shouldn't trust the
consensus anymore.
Fixes#23091
Signed-off-by: David Goulet <dgoulet@torproject.org>
One log statement was a warning and has been forgotten. It is triggered for a
successful attempt at introducting from a client.
It has been reported here:
https://lists.torproject.org/pipermail/tor-relays/2017-August/012689.html
Three other log_warn() statement changed to protocol warning because they are
errors that basically can come from the network and thus triggered by anyone.
Fixes#23078.
Signed-off-by: David Goulet <dgoulet@torproject.org>
We don't actually want Coverity to complain when a BUG() check can
never fail, since such checks can prevent us from introducing bugs
later on.
Closes ticket 23054. Closes CID 1415720, 1415724.
Now that half the threads are permissive and half are strict, we
need to make sure we have at least two threads, so that we'll
have at least one of each kind.
Each piece of queued work now has an associated priority value; each
priority goes on a separate queue.
With probability (N-1)/N, the workers will take work from the highest
priority nonempty queue. Otherwise, they'll look for work in a
queue of lower priority. This behavior is meant to prevent
starvation for lower-priority tasks.
In the Linux kernel, the BUG() macro causes an instant panic. Our
BUG() macro is different, however: it generates a nonfatal assertion
failure, and is usable as an expression.
Additionally, this patch tells util_bug.h to make all assertion
failures into fatal conditions when we're building with a static
analysis tool, so that the analysis tool can look for instances
where they're reachable.
Fixes bug 23030.
Wow, it sure seems like some compilers can't implement isnan() and
friends in a way that pleases themselves!
Fixes bug 22915. Bug trigged by 0.2.8.1-alpha and later; caused by
clang 4.
We need to keep these around for TAP and old-style hidden services,
but they're obsolete, and we shouldn't encourage anyone to use them.
So I've added "obsolete" to their names, and a comment explaining
what the problem is.
Closes ticket 23026.
In zstd 1.3.0, once you have called ZSTD_endStream and been told
that your putput buffer is full, it really doesn't want you to call
ZSTD_compressStream again. ZSTD 1.2.0 didn't seem to mind about
this.
This patch fixes the issue by making sure never to call
ZSTD_endStream if there's any more data on the input buffer to
process, by flushing even when we're about to call "endStream", and
by never calling "compress" or "flush" after "endStream".
Fix for 22924. Bugfix on 0.2.9.1-alpha when the test was introducd
-- though it couldn't actually overflow until we fixed 17750.
Additionally, this only seems to overflow on 32-bit, and only when
the compiler doesn't re-order the (possibly dead) assignment out of
the way. We ran into it on a 32-bit ubuntu trusty builder.
Clang didn't like that we were passing uint64_t values to an API
that wanted uint32_t. GCC has either not cared, or has figured out
that the values in question were safe to cast to uint32_t.
Fixes bug22916; bugfix on 0.2.7.2-alpha.
These statistics were largely ununsed, and kept track of statistical information
on things like how many time we had done TLS or how many signatures we had
verified. This information is largely not useful, and would only be logged
after receiving a SIGUSR1 signal (but only if the logging severity level was
less than LOG_INFO).
* FIXES#19871.
* REMOVES note_crypto_pk_op(), dump_pk_op(), and pk_op_counts from
src/or/rephist.c.
* REMOVES every external call to these functions.
Relay operators (especially bridge operators) can use this to lower
or raise the number of consensuses that they're willing to hold for
diff generation purposes.
This enables a workaround for bug 22883.
This reverts part of commit 706c44a6ce.
It was a mistake to remove these includes: they were needed on
systems where we have openssl 1.1.0 *and* libscrypt, and where we
were validating the one against the other.
Fixes bug 22892; bugfix on 0.3.1.1-alpha.
This change prevents us from generating corrupt messages when we
are confused about codepage settings, and makes Windows errors
consistent with the rest of our logs.
Fixes bug 22520; bugfix on 0.1.2.8-alpha. Patch from "Vort".
