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890 Commits

Author SHA1 Message Date
Nick Mathewson
4da083db3b Update the copyright date to 201. 2013-01-16 01:54:56 -05:00
Roger Dingledine
6e4a4002c5 Clean up odds and ends 2013-01-15 15:40:17 -05:00
Nick Mathewson
ebf30613ea Better log message to diagnose #7959 2013-01-15 00:25:07 -05:00
Mike Perry
d05ff310a5 Bug 7691 review fixes. 
Also add in the random nonce generation.
 2013-01-08 19:29:56 -08:00
Mike Perry
15fdfc2993 Bug 7691: Send a probe cell down certain types of circs. 
In general, if we tried to use a circ for a stream, but then decided to place
that stream on a different circuit, we need to probe the original circuit
before deciding it was a "success".

We also need to do the same for cannibalized circuits that go unused.
 2013-01-08 17:28:08 -08:00
Mike Perry
3458d904f6 Fix bug 7341. 
Fix cannibalize, rend circ and intro circ timeout handling.
 2013-01-08 17:21:05 -08:00
Nick Mathewson
b1bdecd703 Merge branch 'ntor-resquashed' 
Conflicts:
	src/or/cpuworker.c
	src/or/or.h
	src/test/bench.c
 2013-01-03 11:52:41 -05:00
Nick Mathewson
94cb7bd24d Complete all DOCDOC entries from the ntor branch 2013-01-03 11:29:48 -05:00
Nick Mathewson
b286373908 Enable the ntor handshake on the client side. 
"works for me"
 2013-01-03 11:29:47 -05:00
Nick Mathewson
5c68a1efaa Don't check create cells too much when we're relaying them 
We want to sanity-check our own create cells carefully, and other
people's loosely.
 2013-01-03 11:29:47 -05:00
Nick Mathewson
115e8fe9a5 Use created_cell_format where appropriate 2013-01-03 11:29:47 -05:00
Nick Mathewson
6c69b16c93 Use new wrappers for making,sending,processing create/extend cells 2013-01-03 11:29:47 -05:00
Nick Mathewson
2802ccaeb6 Teach cpuworker and others about create_cell_t and friends 
The unit of work sent to a cpuworker is now a create_cell_t; its
response is now a created_cell_t.  Several of the things that call or
get called by this chain of logic now take create_cell_t or
created_cell_t too.

Since all cpuworkers are forked or spawned by Tor, they don't need a
stable wire protocol, so we can just send structs.  This saves us some
insanity, and helps p
 2013-01-03 11:29:46 -05:00
Nick Mathewson
18c7d3f157 Rename handshake_digest to rend_circ_nonce 
The handshake_digest field was never meaningfully a digest *of* the
handshake, but rather is a digest *from* the handshake that we exapted
to prevent replays of ESTABLISH_INTRO cells.  The ntor handshake will
generate it as more key material rather than taking it from any part
of the circuit handshake reply..
 2013-01-03 11:29:46 -05:00
Nick Mathewson
f58d4dfcd6 Massive refactoring of the various handshake types 
The three handshake types are now accessed from a unified interface;
their state is abstracted from the rest of the cpath state, and so on.
 2013-01-03 11:29:46 -05:00
Nick Mathewson
5fa1c7484c Refactor the CREATE_FAST handshake code to match the others. 2013-01-03 11:29:02 -05:00
Nick Mathewson
f7e590df05 Split onion.[ch] into onion{,_fast,_tap}.[ch] 
I'm going to want a generic "onionskin" type and set of wrappers, and
for that, it will be helpful to isolate the different circuit creation
handshakes.  Now the original handshake is in onion_tap.[ch], the
CREATE_FAST handshake is in onion_fast.[ch], and onion.[ch] now
handles the onion queue.

This commit does nothing but move code and adjust header files.
 2013-01-02 14:11:14 -05:00
Nick Mathewson
8324824d8f Fix whitespace 2012-12-25 23:34:16 -05:00
Mike Perry
406d59a9c9 Nick's Code review #3 part 2. 2012-12-18 14:16:01 -08:00
Mike Perry
b0fc18c37e Changes from Nick's code review 'part 1' 
I think this is actually his third code review of this branch so far.
 2012-12-18 13:26:36 -08:00
Mike Perry
ccaeef22e1 Tags on relay cells can result in certain reason codes. 
Close the circuit (it's probably junk anyways), and make sure we don't probe
it/count it as a success.
 2012-12-11 17:49:12 -08:00
Mike Perry
af9011f824 Woops, this log message triggers with the 2-hop bias commit. 2012-12-11 17:19:39 -08:00
Mike Perry
c1bc6a1124 Add a missing comment. 2012-12-10 00:36:10 -08:00
Mike Perry
d409c8a90d More log message and space fixups. 2012-12-10 00:28:07 -08:00
Mike Perry
aa16d59ee7 Clean up some XXX comments. 2012-12-09 23:50:05 -08:00
Mike Perry
4590993ff3 Space fixes. 2012-12-09 23:47:04 -08:00
Mike Perry
b75880d7b3 Fix a rather serious use-count state bug. 
We need to use the success count or the use count depending on the consensus
parameter.
 2012-12-09 20:56:48 -08:00
Mike Perry
2dbb62f1b5 Convert to doubles for all pathbias state. 
Let's hope this solves the rounding error issue..
 2012-12-09 20:53:22 -08:00
Mike Perry
ab1fce5c19 Also shorten circuit_successes to circ_successes. 
For consistency and great justice.

Ok, mostly consistency.
 2012-12-09 20:24:50 -08:00
Mike Perry
a90f165b83 Rename first_hop to circ_attempt. 
Since we've generalized what we can count from (first or second hop), we
should generalize the variable and constant naming too.
 2012-12-09 20:24:22 -08:00
Mike Perry
04866055e8 Change from first hop accounting to 2nd hop accounting 
This has several advantages, including more resilience to ambient failure.

I still need to rename all the first_hop vars tho.. Saving that for a separate
commit.
 2012-12-09 20:02:41 -08:00
Mike Perry
930fbb2fec Flag cannibalized circs as used (non-ideal). 
Also add some comments.
 2012-12-09 19:18:04 -08:00
Mike Perry
686fc22259 Allow any valid 'end' cell to mean a circuit was used successfully. 
Also improve some log messages.
 2012-12-08 16:37:22 -08:00
Mike Perry
b599a6ed07 Sadly, we can't safely count client intro circ success 2012-12-08 14:16:29 -08:00
Mike Perry
5f733ccd73 Fix some hidden service edge cases. 2012-12-08 12:07:58 -08:00
Mike Perry
26fa47226c Refactor path use bias code into own function. 
Also, improve and log some failure cases.
 2012-12-07 17:47:23 -08:00
Mike Perry
7a28862d56 Fix another crash bug. 2012-12-07 15:28:38 -08:00
Mike Perry
c3028edba6 Remove n_chan codepaths for determinining guard. 
Cpath is apparently good enough.
 2012-12-07 15:28:38 -08:00
Mike Perry
7f8cbe389d Fix a crash due to NULL circ->n_chan. 
Is this redundant? Can we always rely on circ->cpath->extend_info
being present for origin circuits?
 2012-12-07 15:28:38 -08:00
Mike Perry
412ae099cb Prop 209: Add path bias counts for timeouts and other mechanisms. 
Turns out there's more than one way to block a tagged circuit.

This seems to successfully handle all of the normal exit circuits. Hidden
services need additional tweaks, still.
 2012-12-07 15:28:38 -08:00
Mike Perry
da5c398d79 Be explicit about units for timeout. 2012-12-07 15:28:37 -08:00
Mike Perry
ef1b830ef8 Fix an assert crash and an incorrectly placed return. 2012-12-07 15:28:37 -08:00
Mike Perry
bb548134cd Update with code review changes from Nick. 2012-12-07 15:28:37 -08:00
Mike Perry
192996690c Fix spaces. 2012-12-07 15:28:37 -08:00
Mike Perry
a54873648f Refactor pathbias functions to use pathbias_should_count. 2012-12-07 15:28:37 -08:00
Mike Perry
ab9c83c949 Update Path Bias log messages to match Proposal 209. 2012-12-07 15:28:37 -08:00
Mike Perry
9bf5582e73 Add log message checks for different rates. 
May want to squash this forward or back..
 2012-12-07 15:28:37 -08:00
Mike Perry
248fbc3619 Update pathbias parameters to match Proposal 209. 
Needs manpage update and testing still..
 2012-12-07 15:28:37 -08:00
Mike Perry
954f263ed5 Add the ability to count circuit timeouts for guards. 
This is purely for informational reasons for debugging.
 2012-12-07 15:28:36 -08:00
Mike Perry
42e3c04a7a Bug 3443: Don't count ORconn setup in circuit build time. 
Also, add a hack Roger suggested where we're more patient if no circuits are
opened yet.
 2012-12-07 10:34:09 -05:00