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996 commits

Author SHA1 Message Date
Nick Mathewson
babbd3ff08 Merge remote-tracking branch 'public/feature9777_024_squashed' 
Conflicts:
	src/or/circuitbuild.c
 2014-02-07 10:47:34 -05:00
Nick Mathewson
1068e50aec Discard circuit paths on which nobody supports ntor 
Right now this accounts for about 1% of circuits over all, but if you
pick a guard that's running 0.2.3, it will be about 6% of the circuits
running through that guard.

Making sure that every circuit has at least one ntor link means that
we're getting plausibly good forward secrecy on every circuit.

This implements ticket 9777,
 2014-02-07 10:45:34 -05:00
Nick Mathewson
12dc55f487 Merge branch 'prop221_squashed_024' 
Conflicts:
	src/or/or.h
 2013-11-01 10:28:01 -04:00
Nick Mathewson
0de71bf8eb Implement proposal 221: Stop sending CREATE_FAST 
This makes FastFirstHopPK an AUTOBOOL; makes the default "auto"; and
makes the behavior of "auto" be "look at the consensus."
 2013-11-01 10:04:48 -04:00
Nick Mathewson
5cba0ddfc4 Make circpathbias and circuitbuild compile. 
That was the tricky part
 2013-10-31 14:28:49 -04:00
Nick Mathewson
b4ebf8421a Move pathbias functions into a new file. 
Does not compile yet.  This is the "no code changed" diff.
 2013-10-31 14:17:49 -04:00
Nick Mathewson
c8c2298015 Simply route length generation code. 
The old code had logic to use a shorter path length if we didn't
have enough nodes. But we don't support 2-node networks anwyay.

Fix for #9926.  I'm not calling this a bugfix on any particular
version, since a 2-node network would fail to work for you for a lot
of other reasons too, and it's not clear to me when that began, or if
2-node networks would ever have worked.
 2013-10-08 11:48:33 -04:00
Nick Mathewson
775c491502 Separate mutable/const accessors for circuit_build_times 
(These have proved invaluable for other global accessors.)
 2013-08-22 10:15:56 -04:00
Nick Mathewson
e1c9b43b8e Rename get_circuit_nbuild_* to end with _ms 2013-08-22 10:15:56 -04:00
vagrant
4834641dce Make circ_times static and add accessor functions. 
Change the global circ_times to a static variable and use
accessor functions throughout the code, instead of
accessing it directly.
 2013-08-22 10:15:56 -04:00
Nick Mathewson
a3ffa1f76e Rename circuit_get_global_list to remove trailing _ 2013-08-15 15:37:23 -04:00
Marek Majkowski
1555876d5f Fix #9108 - make global_circuitlist a doubly linked list 2013-06-20 16:56:54 +01:00
Marek Majkowski
d7538b57b4 Don't access global_circuitlist variable directly. Use a getter instead. 2013-06-20 16:40:05 +01:00
Mike Perry
2170f89a93 Bug 8235: Fix scaling adjustments. 
We need to subtract both the current built circuits *and* the attempted
circuits from the attempt count during scaling, since *both* have already been
counted there.
 2013-04-24 22:03:02 -04:00
Nick Mathewson
33b7083f26 Fix a wide line 2013-04-03 09:36:37 -04:00
Mike Perry
56e7dff7bd Add additional checks for Path Bias scaling. 
Just in case more issues remain with scaling, it would be nice to pin-point
them as such.
 2013-04-03 09:32:15 -04:00
Mike Perry
9117b14218 Bug #8196: Demote a path bias notice that can be caused by controllers. 
We didn't see this in normal usage anyway.
 2013-03-29 12:21:28 -04:00
Mike Perry
a7d6683629 Bug 8230: Mark circuits as opened before reachability testing. 
Should silence two path bias Bug messages seen on relays at startup.
 2013-03-29 12:20:54 -04:00
Nick Mathewson
7f8098d2d0 Add some missing case values to please clang 
It seems that some versions of clang that would prefer the
-Wswitch-enum compiler flag to warn about switch statements with
missing enum values, even if those switch statements have a
default.

Fixes bug 8598; bugfix on 0.2.4.10-alpha.
 2013-03-27 21:04:08 -04:00
Mike Perry
914bfe765d Bug 7065: Use $ for idhex instead of = 2013-03-26 18:49:41 -07:00
Nick Mathewson
597cd893c5 Merge remote-tracking branch 'public/bug6174' into maint-0.2.4 2013-03-18 16:36:25 -04:00
Nick Mathewson
26639b7798 Merge remote-tracking branch 'public/no_dup_guards' into maint-0.2.4 2013-03-18 14:50:01 -04:00
Nick Mathewson
339df5df08 Fix 8447: use %u to format circid_t. 
Now that circid_t is 4 bytes long, the default integer promotions will
leave it alone when sizeof(int) == 4, which will leave us formatting an
unsigned as an int.  That's technically undefined behavior.

Fixes bug 8447 on bfffc1f0fc.  Bug not
in any released Tor.
 2013-03-10 19:52:06 -04:00
Nick Mathewson
7bb51fdd89 Rename circuit_expire_all_dirty_circs 
The new name is circuit_mark_all_dirty_circs_as_unusable.

This resolves an XXX024
 2013-02-19 18:37:03 -05:00
Nick Mathewson
3340d3279d Downgrade an assert to LD_BUG 
This should prevent crashes on further recurrence of 8065, and help
diagnose such if they occur
 2013-02-19 15:02:08 -05:00
Nick Mathewson
d6634001c9 Merge remote-tracking branch 'public/wide_circ_ids' 
Conflicts:
	src/or/channel.h
	src/or/connection_or.c
	src/or/cpuworker.c
 2013-02-15 16:23:43 -05:00
Nick Mathewson
0fa362cafa Merge remote-tracking branch 'public/feature4994-rebased' 2013-02-15 15:58:54 -05:00
Nick Mathewson
1070a720ad Be more robust when excluding existing nodes as new dirguards 
In addition to rejecting them post-hoc, avoid picking them in the
first place.  This makes us less likely to decide that we can't add
guards at all.
 2013-02-14 12:06:59 -05:00
Nick Mathewson
d7089ff228 Restore the entry/dirguard distinction. 
We shouldn't be calling choose_random_entry() for directory
conncetions; that's what choose_random_dirguard() is for.
 2013-02-12 16:23:12 -05:00
Nick Mathewson
f3835bcb37 Avoid null-pointer deref in pathbias_is_new_circ_attempt 
Coverity is worried about this (CID 980653).  It hasn't happened in
testing, but we might as well make sure it can't happen.
 2013-02-11 16:59:21 -05:00
Roger Dingledine
e1ec03f819 use router->addr for log messages and controller events 
(rather than router->address)
 2013-02-09 21:10:07 -05:00
Mike Perry
eb15be3d45 Mention a trac ticket relevant to an XXX comment. 2013-02-07 14:30:58 -05:00
Mike Perry
bbd38f293f Better document an XXX comment about refactoring. 2013-02-07 14:30:58 -05:00
Mike Perry
b03553737c Separate the flags for logging use bias. 
I think we want both sets of messages to appear independently to help us know
what needs tuning.
 2013-02-07 14:30:58 -05:00
Mike Perry
a99ebaf4c7 Lower path use bias thresholds. 
I noticed bad wifi networks can have low use success rates.
 2013-02-04 16:57:09 -08:00
Nick Mathewson
b64dc35b5c Reinstate some fixes/tweaks from 6e4a4002 
These seem to have gotten conflicted out of existence while mike was
working on path bias stuff.

Thanks to sysrqb for collecting these in a handy patch.
 2013-02-04 11:51:39 -05:00
Roger Dingledine
bce5019eff generalize choose_random_entry()'s dirinfo parameter 
Now we can specify to skip bridges that wouldn't be able to answer the
type of dir fetch we're launching.

It's still the responsibility of the rest of the code to prevent us from
launching a given dir fetch if we have no bridges that could handle it.
 2013-02-02 08:19:27 -08:00
Roger Dingledine
a8297cdbd3 use microdescriptors if *any* of our bridges can handle them 
Now as we move into a future where most bridges can handle microdescs
we will generally find ourselves using them, rather than holding back
just because one of our bridges doesn't use them.
 2013-02-02 08:04:20 -08:00
Nick Mathewson
996db755c2 Fix a couple of warnings on the 8081 branch. 2013-02-01 17:03:00 -05:00
Mike Perry
b3e57b760e Increment an informational counter for use failed state. 
This informational counter is probably now redundant, but might as well keep
it consistent I guess.
 2013-02-01 17:01:26 -05:00
Mike Perry
6e4610de02 Fix a log typo found by sysrqb. 2013-02-01 17:01:22 -05:00
Mike Perry
bce6714f99 Refactor code that rolls back the use state 
Also document it better.

Mention this refactoring in the comments for the path state machine.
 2013-02-01 17:01:16 -05:00
Mike Perry
3a63e5ef42 Refactor and rename pathbias rate evaluation. 2013-02-01 17:01:12 -05:00
Mike Perry
dfcfb5d17d Refactor the scaling parameter fetching into a single function. 
Also, deprecate the torrc options for the scaling values. It's unlikely anyone
but developers will ever tweak them, even if we provided a single ratio value.
 2013-02-01 17:01:12 -05:00
Mike Perry
2b2c7f23f5 Mark entry guard state dirty everwhere the pathbias code touches it. 2013-02-01 17:01:12 -05:00
Mike Perry
6828a19670 Add a tristate to guard against unexpected circ purpose transitions 2013-02-01 17:01:12 -05:00
Mike Perry
173ed05d2f Clarify state transition and related pathbias comments 2013-02-01 17:01:12 -05:00
Mike Perry
a78542f0c3 Bug 8024: Check for null/closed channel before probing. 2013-01-22 21:03:28 -08:00
Mike Perry
b810d322bf squash! Remove a source of error during path bias scaling 
Improve debug logs and fix a state fencepost error.
 2013-01-20 14:32:56 -08:00
Mike Perry
06a1d0b044 squash! Implement Path use bias accounting. 
Make a debug log more informative.
 2013-01-20 14:32:56 -08:00