Commit Graph

28430 Commits

Author SHA1 Message Date
Nick Mathewson
285e7c98fd Distinguish true clock jumps from idleness
Since we're going to be disabling the second-elapsed callback, we're
going to sometimes have long periods when no events file, and so the
current second is not updated.  Handle that by having a better means
to detect "clock jumps" as opposed to "being idle for a while".
Tolerate far more of the latter.

Part of #26009.
2018-05-09 14:01:00 -04:00
Nick Mathewson
83137275a7 Add update_current_time() calls to periodic and event-driven callbacks
This is part of 26009, where we're going to keep track of the
current time and its jumps without having to do so in
second_elapsed_callback.
2018-05-03 12:02:10 -04:00
Nick Mathewson
1d16b7124f Basic unit tests for update_current_time().
This function is about to get more complicated, so we should track
how it's working.
2018-05-03 12:02:10 -04:00
Nick Mathewson
b0598f2a12 Move the "update the current second" code from second_elapsed_callback
This now happens in a new function, with the intent of having it
invoked from our callbacks.  This is one step on the way to 26009.
2018-05-03 12:02:10 -04:00
Nick Mathewson
5e0316142f Merge remote-tracking branch 'github/ticket25952' 2018-05-03 11:59:53 -04:00
Nick Mathewson
ed636de4cc Merge remote-tracking branch 'github/ticket25951' 2018-05-03 11:59:31 -04:00
Nick Mathewson
be9f0e5f20 Merge remote-tracking branch 'github/ticket25949' 2018-05-03 11:57:09 -04:00
David Goulet
319505d38c hs-v3: Remove extra white-space and clarify comment
From Neel's latest patch on optimizing the hs_circ_service_get_intro_circ()
digest calculation, remove an extra white-space and clarify a comment of the
legacy key digest to inform when to use it.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-03 09:34:50 -04:00
David Goulet
2e8eb1d5e3 Merge remote-tracking branch 'asn/bug23107' 2018-05-03 09:33:42 -04:00
Nick Mathewson
eb00eff09d Merge branch 'ticket25997' 2018-05-02 16:03:57 -04:00
Nick Mathewson
e386d61c9b Make hs_get_responsible_hsdirs() deterministic.
This test was using the current time to pick the time period number,
and a randomly generated hs key.  Therefore, it sometimes picked an
index that would wrap around the example dht, and sometimes would
not.

The fix here is just to fix the time period and the public key.

Fixes bug 25997; bugfix on 0.3.2.1-alpha.
2018-05-02 10:17:46 -04:00
David Goulet
1ef1ed76d8 dirvote: Fix typo in comment
Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-02 09:06:40 -04:00
Nick Mathewson
8625f36de1 Merge branch 'maint-0.3.3' 2018-05-02 08:46:28 -04:00
Nick Mathewson
c66b512671 Merge branch 'maint-0.3.2' into maint-0.3.3 2018-05-02 08:46:28 -04:00
Nick Mathewson
246765342e Merge branch 'maint-0.3.1' into maint-0.3.2 2018-05-02 08:46:28 -04:00
Nick Mathewson
993e314c6f Merge branch 'maint-0.2.9' into maint-0.3.1 2018-05-02 08:46:28 -04:00
Nick Mathewson
f26d6ead21 Merge branch 'ticket25996' 2018-05-02 08:45:35 -04:00
teor
d465bd27ed
Stop logging stack contents when reading a zero-length bandwidth file
When directory authorities read a zero-byte bandwidth file, they log
a warning with the contents of an uninitialised buffer. Log a warning
about the empty file instead.

Fixes bug 26007; bugfix on 0.2.2.1-alpha.
2018-05-02 22:36:23 +10:00
Georg Koppen
da8996d611 Bug 26000: Fix missing ";" 2018-05-02 07:46:05 -04:00
George Kadianakis
0c346bdd68 squash! Optimize legacy intro point digest calculation. 2018-05-02 14:09:15 +03:00
Neel Chauhan
af70d3c459 Optimize legacy intro point digest calculation. 2018-05-02 14:08:28 +03:00
Nick Mathewson
a2b53c1d0b coverage: Repeat the test for avoiding failed intro points
This test, in test_client_pick_intro(), will have different coverage
depending on whether it selects a good intro point the first time or
whether it has to try a few times.  Since it produces the shorter
coverage with P=1/4, repeat this test 64 times so that it only
provides reduced coverage with P=1/2^128.  The performance cost is
negligible.

Closes ticket 25996.  This test was introduced in 0.3.2.1-alpha.
2018-05-01 19:58:39 -04:00
Nick Mathewson
60fad8d41f Stop using approx_time() in circuitmux_ewma.
It doesn't match with the tick-count code any longer.

Bug not in any released Tor.
2018-05-01 18:28:01 -04:00
Nick Mathewson
5c5392fea7 Merge remote-tracking branch 'github/eliminate_gettimeofday_cached' 2018-05-01 13:27:02 -04:00
Nick Mathewson
b396e4e429 Move unreachable port warnings to a periodic event.
Arguably, the conditions under which these events happen should be a
bit different, but the rules are complex enough here that I've tried
to have this commit be pure refactoring.

Closes ticket 25952.

Finally, before this code goes away, take a moment to look at the
amazing way that we used to try to have an event happen
every N seconds:

      get_uptime() / N != (get_uptime()+seconds_elapsed) / N

Truly, it is a thing of wonder.  I'm glad we didn't start using this
pattern everywhere else.
2018-05-01 13:14:18 -04:00
Alexander Færøy
60a2c92d10 Build Tor without dirauth module in Travis.
See: https://bugs.torproject.org/25953
2018-05-01 12:11:09 -04:00
David Goulet
895d20ab4b Add changes file for #25610
Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 11:45:34 -04:00
David Goulet
2b6c13267f dirvote: Make tokens a const in dirvote_parse_sr_commits()
Part of #25988

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 11:45:34 -04:00
David Goulet
5db331e8fc Make find_opt_by_keyword() take a const smartlist
Part of #25988

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 11:45:34 -04:00
David Goulet
70c92c3366 sr: Rename shared_random_common.{c|h} to shared_random_client.{c|h}
No code behavior change.

Pars of #25988

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 11:45:34 -04:00
David Goulet
2d79d0155e vote: Move dirvote_recalculate_timing() to voting_schedule.c
By doing so, it is renamed to voting_schedule_recalculate_timing(). This
required a lot of changes to include voting_schedule.h everywhere that this
function was used.

This effectively now makes voting_schedule.{c|h} not include dirauth/dirvote.h
for that symbol and thus no dependency on the dirauth module anymore.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 11:45:34 -04:00
David Goulet
e504b1b358 vote: Namespace functions in voting_schedule.c
Rename them from dirvote_* to voting_schedule_*.

No code behavior change.

Part of #25988

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 11:43:23 -04:00
David Goulet
711ff6cdf7 Rename dirvote_common.{c|h} to voting_schedule.{c|h}
No code behavior change.

Part of #25988

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 11:43:23 -04:00
David Goulet
6452fe78c2 dirvote: Make dirvote_get_preferred_voting_intervals() static
This function doesn't need to be public from the dirvote common file (which
will get renamed in future commit) so move it to dirauth/dirvote.c and make it
static.

Part of #25988

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 11:43:23 -04:00
David Goulet
098b7fe25b ns: Move dirvote_get_voter_sig_by_alg() to networkstatus.c
It makes more sense to be in networkstatus.c so move it there and rename it
with the "networkstatus_" prefix.

Part of #25988

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 11:43:23 -04:00
Nick Mathewson
afd4fc689a Merge branch 'dirvote_act_refactor_v2_squashed' 2018-05-01 10:57:04 -04:00
Nick Mathewson
4a559e9960 Refactor to use safe_timer_diff. 2018-05-01 10:56:56 -04:00
Nick Mathewson
a73603653a Reschedule voting callback when any cfg option affecting it changes. 2018-05-01 10:54:54 -04:00
Nick Mathewson
234e317ef1 Ensure that voting is rescheduled whenever the schedule changes. 2018-05-01 10:54:54 -04:00
Nick Mathewson
6868398b69 Move responsibility for voting into a separate periodic callback.
Closes ticket25937.
2018-05-01 10:54:54 -04:00
Nick Mathewson
9870497f9d Update dirvote_act() to return the time of its next action.
This is remarkably simple, given the macros in the last commit.
2018-05-01 10:52:16 -04:00
Nick Mathewson
4f184415cc Start refactoring dirvote_act() towards self-scheduling
This change should have no behavioral effect: it just uses macros to
describe the current control flow.
2018-05-01 10:51:08 -04:00
Nick Mathewson
bbf0b92b1c Fix an assertion failure introduced by #25948
Apparently, we can decide our state is dirty before we create the
event to tell the mainloop that we should save it.  That's not a
problem, except for the assertion failure.
2018-05-01 10:47:44 -04:00
Nick Mathewson
9ece027d60 Merge remote-tracking branch 'ffmancera-1/bug20522' 2018-05-01 10:43:40 -04:00
Nick Mathewson
77b7eb2795 Remove responsibility for flushing log cbs from mainloop
This is now handled as-needed as the control module is flushing its
own callbacks.  Closes ticket 25951.
2018-05-01 10:38:46 -04:00
Nick Mathewson
d018bf199c Merge remote-tracking branch 'dgoulet/ticket25610_034_01-squashed' 2018-05-01 10:29:05 -04:00
Nick Mathewson
0d8604c763 Give queued_events_flush_all() responsibility for flushing log cbs
This requires that when a log cb happens, the event for flushing
queued events is scheduled, so we also add the necessary machinery
to have that happen.

Note that this doesn't actually help with logs from outside the main
thread, but those were already suppressed: see #25987 for a ticket
tracking that issue.
2018-05-01 10:26:04 -04:00
Nick Mathewson
b0224bf728 Add a mechanism for the logging system to report queued callbacks
Sometimes the logging system will queue a log message for later.
When it does this, the callback will either get flushed at the next
safe time, or from the second-elapsed callback.

But we're trying to eliminate the second-elapsed callback, so let's
make a way for the log system to tell its users about this.
2018-05-01 10:18:49 -04:00
David Goulet
d8509b450a vote: Return error when adding vote/signature if no dirauth module
Commit 0f3b765b3c added
tor_assert_nonfatal_unreached() to dirvote_add_vote() and
dirvote_add_signatures() when the dirauth module is disabled.

However, they need to return a value. Furthermore, the dirvote_add_vote()
needs to set the msg_out and status_out so it can be sent back. Else,
uninitialized values would be used.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 10:15:28 -04:00
David Goulet
15e8ce3937 Move back dirvote_authority_cert_dup to dirvote.c
Originally, it was made public outside of the dirauth module but it is no
longer needed. In doing so, we put it back in dirvote.c and reverted its name
to the original one:

dirvote_authority_cert_dup() --> authority_cert_dup()

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-01 10:07:09 -04:00