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1193 commits

Author SHA1 Message Date
Nick Mathewson
088c0367a2 Initial backend for an ntor-v3 implementation. 
This code is based directly on the specification, without looking at
the reference implementation or the implementation in Arti.
Nonetheless, it is now passing with the test vectors generated by
the reference implementation.
 2021-08-26 15:09:56 -04:00
Mike Perry
5c3021be85 Make inbuf and outbuf len check params const 2021-07-30 12:57:31 -04:00
Mike Perry
a0368b3759 MAKEFILE: include new CC algs in makefile 2021-07-30 12:57:31 -04:00
Mike Perry
ed1e91ffc2 TOR_NOLA: Implement a pure BDP tracking CC alg 
How come no one ever named a congestion control algorithm after New Orleans?
 2021-07-30 12:57:31 -04:00
Mike Perry
663cd052b5 TOR_VEGAS: Implement Prop#324 TOR_VEGAS. 2021-07-30 12:57:30 -04:00
Mike Perry
33cd92922a TOR_WESTWOOD: Implement Prop#324 TOR_WESTWOOD 2021-07-30 12:57:30 -04:00
Mike Perry
66f975e4e6 Prop#324: Free congestion control object on circ and cpath 2021-07-30 12:57:30 -04:00
Mike Perry
4d8c6d5701 Prop#324: Hook up CC window checks for relay cell packaging 2021-07-30 12:57:30 -04:00
Mike Perry
31fc7591a1 Prop#324: Hook up CC algs to main sendme callpoints 2021-07-30 12:57:30 -04:00
Mike Perry
802d7e22c5 Prop#324: Add congestion control state to structs 2021-07-30 12:57:30 -04:00
Mike Perry
f1d0c2d826 Prop#324: Common RTT, BDP, and blocked channel signal support 2021-07-30 12:57:30 -04:00
George Kadianakis
4f68fe3e6c Merge branch 'vanguards-lite-dev-rebased' 2021-07-28 12:00:37 +03:00
George Kadianakis
72aa23a9fd circpad: Be smarter on when to send back STOP cells. 2021-07-22 15:03:56 +03:00
George Kadianakis
30a97d9bb3 Increase frequency of vg-lite callback to 15 minutes 2021-07-20 13:03:32 +03:00
George Kadianakis
7f701794e7 Add a switch to toggle the feature on/off 2021-07-12 12:22:58 +03:00
George Kadianakis
7ec9a68477 Service intro circuits are now 4-hop to avoid linkability by intro 
Now the circuits look like this:

	 client rend:   C -> G -> L2 -> Rend
	 client intro:  C -> G -> L2 -> M -> Intro
	 client hsdir:  C -> G -> L2 -> M -> HSDir
	 service rend:  C -> G -> L2 -> M -> Rend
	 service intro: C -> G -> L2 -> M -> Intro
	 service hsdir: C -> G -> L2 -> M -> HSDir
 2021-07-12 11:24:58 +03:00
George Kadianakis
e79d73de9b Merge remote-tracking branch 'tor-gitlab/mr/406' 2021-07-07 13:02:11 +03:00
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
David Goulet
301ffb71a6 hs: Send back 0xF6 for a v2 onion address 
Fixes #40421

Signed-off-by: David Goulet <dgoulet@torproject.org>
 2021-06-29 09:56:44 -04:00
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