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Author SHA1 Message Date
George Kadianakis
52c5b8aa12 Simplify cannibalization logic now that all HS is vanguards 
Co-authored-by: Mike Perry <mikeperry-git@torproject.org>
 2021-07-01 18:15:55 +03:00
George Kadianakis
9afd9d0940 Special vanguard L3 increased path length does not apply for vanguards-lite 
Co-authored-by: Mike Perry <mikeperry-git@torproject.org>
 2021-07-01 18:15:55 +03:00
George Kadianakis
0240c00929 Preemptive circuits for HSes should now be vanguard circuits 
Co-authored-by: Mike Perry <mikeperry-git@torproject.org>
 2021-07-01 18:15:55 +03:00
George Kadianakis
e23947716e Use L2 vanguards during path selection 
Co-authored-by: Mike Perry <mikeperry-git@torproject.org>
 2021-07-01 18:15:55 +03:00
George Kadianakis
314a6b42c5 Introduce vanguards-lite subsystem and some of its entry points 
Co-authored-by: Mike Perry <mikeperry-git@torproject.org>
 2021-07-01 18:15:55 +03:00
Nick Mathewson
0667eaa9bf Merge branch 'maint-0.4.6' 2021-06-10 09:55:55 -04:00
Nick Mathewson
7be37a26ac Merge branch 'maint-0.4.5' into maint-0.4.6 2021-06-10 09:55:55 -04:00
Nick Mathewson
ae2254e490 Merge branch 'maint-0.4.4' into maint-0.4.5 2021-06-10 09:55:55 -04:00
Nick Mathewson
014345ed6a Resolve remaining merge conflicts in relay.c 
(My bad!)
 2021-06-10 09:55:35 -04:00
Nick Mathewson
8734eea31b Merge branch 'maint-0.4.6' 2021-06-10 08:53:07 -04:00
Nick Mathewson
3260d323a6 Merge branch 'maint-0.4.5' into maint-0.4.6 2021-06-10 08:53:07 -04:00
Nick Mathewson
ec696a95e5 Merge branch 'maint-0.4.4' into maint-0.4.5 2021-06-10 08:53:07 -04:00
Nick Mathewson
0f2d45328d Merge branch 'maint-0.3.5' into maint-0.4.4 
Conflicts resolved:
	src/core/or/relay.c
 2021-06-10 08:52:39 -04:00
David Goulet
adb248b6d6 TROVE-2021-003: Check layer_hint before half-closed end and resolve cells 
This issue was reported by Jann Horn part of Google's Project Zero.

Jann's one-sentence summary: entry/middle relays can spoof RELAY_END cells on
half-closed streams, which can lead to stream confusion between OP and
exit.

Fixes #40389
 2021-06-10 08:50:05 -04:00
Nick Mathewson
d9edf143ab Merge branch 'maint-0.4.6' 2021-06-10 08:42:15 -04:00
Nick Mathewson
69bd4a8a2d Merge branch 'maint-0.4.5' into maint-0.4.6 2021-06-10 08:42:15 -04:00
Nick Mathewson
1da8621c0a Merge branch 'maint-0.4.4' into maint-0.4.5 2021-06-10 08:42:15 -04:00
Nick Mathewson
31eaa81f59 Merge branch 'maint-0.3.5' into maint-0.4.4 2021-06-10 08:42:15 -04:00
Roger Dingledine
896ab165d9 clarify three comments 
based on code-spelunking with nickm
 2021-05-27 14:22:22 -04:00
Nick Mathewson
4c06c619fa Use a more secure hash function for the circuitmux hashtable. 
Fixes bug 40931; bugfix on 0.2.4.4-alpha. Also tracked as
TROVE-2021-005.

This issue was reported by Jann Horn from Google's Project Zero.
 2021-05-18 08:40:09 -04:00
Nick Mathewson
fbd47a5078 Merge branch 'maint-0.4.5' into maint-0.4.6 2021-05-17 09:04:22 -04:00
Nick Mathewson
af560f21ec Merge branch 'maint-0.4.6' 2021-05-17 09:04:22 -04:00
David Goulet
5f009a59da conn: MetricsPort listener is a listener port 
The connection type for the listener part was missing from the "is
connection a listener" function.

This lead to our periodic event that retries our listeners to keep
trying to bind() again on an already opened MetricsPort.

Closes #40370

Signed-off-by: David Goulet <dgoulet@torproject.org>
 2021-05-12 15:13:50 -04:00
David Goulet
22861c2f40 relay: Add TCP port exhaustion metrics 
Signed-off-by: David Goulet <dgoulet@torproject.org>
 2021-05-12 11:58:25 -04:00
David Goulet
9c2fa34982 relay: Add the OOM invocation metrics 
With this commit, a relay now emits metrics event on the MetricsPort
related to the OOM invocation for:

  - DNS cache
  - GeoIP database
  - Cell queues
  - HSDir caches

Everytime the OOM is invoked, the number of bytes is added to the
metrics counter for that specific type of invocation.

Related to #40367

Signed-off-by: David Goulet <dgoulet@torproject.org>
 2021-05-12 11:58:25 -04:00
Nick Mathewson
5acf18bfaa Merge branch 'maint-0.4.5' into maint-0.4.6 2021-05-07 10:41:34 -04:00
Nick Mathewson
7c86f34340 Merge branch 'maint-0.4.4' into maint-0.4.5 2021-05-07 10:41:34 -04:00
Nick Mathewson
48dd87933d Merge branch 'maint-0.3.5' into maint-0.4.4 2021-05-07 10:41:33 -04:00
Nick Mathewson
e2c1ac214c Reindent a few lines to fix a GCC warning. 
As of GCC 11.1.1, the compiler warns us about code like this:

     if (a)
         b;
         c;

and that's a good thing: we wouldn't want to "goto fail".  But we
had an instance if this in circuituse.c, which was making our
compilation sad.

Fixes bug 40380; bugfix on 0.3.0.1-alpha.
 2021-05-07 10:39:20 -04:00
George Kadianakis
80c404c4b7 Log warning when connecting to soon-to-be-deprecated v2 onions. 2021-05-07 08:44:36 -04:00
George Kadianakis
5e836eb80c Add warning when trying to connect to deprecated v2 onions. 2021-05-07 08:41:46 -04:00
George Kadianakis
f230beadf4 Prepare for #40373: Re-introduce parsing for v2 onion addresses. 
Welcome back ONION_V2_HOSTNAME! :)
 2021-05-05 11:05:45 +03:00
Roger Dingledine
962b15aa6f fix some tiny typos 2021-03-24 18:13:46 -04:00
Nick Mathewson
c359c3056b Merge branch 'maint-0.4.4' into maint-0.4.5 2021-03-24 12:25:05 -04:00
Nick Mathewson
f6af8e2021 Merge branch 'maint-0.4.5' 2021-03-24 12:25:05 -04:00
Nick Mathewson
37b16d7e19 Merge remote-tracking branch 'tor-gitlab/mr/339' 2021-03-24 12:23:30 -04:00
David Goulet
9ca2394d6b channel: Fix use after free in channel_do_open_actions() 
Fortunately, our tor_free() is setting the variable to NULL after so we were
in a situation where NULL was always used instead of the transport name.

This first appeared in 894ff2dc84 and results in
basically no bridge with a transport being able to use DoS defenses.

Fixes #40345

Signed-off-by: David Goulet <dgoulet@torproject.org>
 2021-03-23 09:19:41 -04:00
Nick Mathewson
0229d5f818 Add "Heartbeat" to the start of several heartbeat messages. 
Closes #40322.
 2021-03-19 13:33:56 -04:00
Roger Dingledine
6de09642f0 warn and reject reentering streams at client too 
Clients now check whether their streams are attempting to re-enter
the Tor network (i.e. to send Tor traffic over Tor), and they close
them preemptively if they think exit relays will refuse them.

See bug 2667 for details. Resolves ticket 40271.
 2021-03-17 13:04:23 -04:00
George Kadianakis
29f07a4e9d Merge branch 'mr/334' 2021-03-17 18:23:18 +02:00
George Kadianakis
e688580277 Implement rate limiting metrics. 2021-03-17 18:22:38 +02:00
George Kadianakis
faf1fe833e Implement port/file-descriptor exhaustion metric. 
This uses a heuristic that came up after a discussion with David.

I'm leaving this as a separate commit so that it can be discussed further if
needed.
 2021-03-17 18:22:38 +02:00
George Kadianakis
f493a12e89 Implement straightforward overload general metrics. 
- OOM metric
- onionskin overload metric
- DNS timeout metric
 2021-03-17 18:22:38 +02:00
David Goulet
15a95df376 Merge branch 'tor-gitlab/mr/337' 2021-03-17 11:53:14 -04:00
Nick Mathewson
066748c9cd Add a DormantTimeoutEnabled to disable dormant mode entirely 
(If you need to do this in an older version you can just set
DormantClientTimeout to something huge.)

Closes #40228.
 2021-03-17 11:53:09 -04:00
George Kadianakis
0ac03390e4 Merge branch 'maint-0.4.5' 2021-03-17 13:43:48 +02:00
Nick Mathewson
444233c15e Run "make autostyle" in advance of new series. 2021-03-12 11:40:48 -05:00
Nick Mathewson
b5d08ddc09 Update copyrights to 2021, using "make update-copyright" 2021-03-12 11:39:23 -05:00
Nick Mathewson
9409c7f2f5 Don't warn about missing guard state if controller picked first hop 
See comments about why this needs a new flag and we can't just use
CIRCUIT_PURPOSE_CONTROLLER.

Fixes #40285; bugfix on 0.3.2.1-alpha.
 2021-03-08 13:42:43 -05:00
Alexander Færøy
a497a97e4c Change %lu to %TOR_PRIuSZ in dos.c. 
This patch unbreaks the Windows build on master that was introduced in
99703eaca0.
 2021-02-26 18:16:08 +00:00