Commit Graph

9 Commits

Author SHA1 Message Date
Nick Mathewson
beef6ed451 Assert that dircollator is collated when we're reading its output.
Fix for 17668.S2.
2016-03-21 13:24:09 -04:00
Nick Mathewson
fa07c60c67 Fix another case of 17668: Add NoEdConsensus
I had a half-built mechanism to track, during the voting process,
whether the Ed25519 value (or lack thereof) reflected a true
consensus among the authorities.  But we never actually inserted this
field in the consensus.

The key idea here is that we first attempt to match up votes by pairs
of <Ed,RSA>, where <Ed> can be NULL if we're told that there is no
Ed key.  If this succeeds, then we can treat all those votes as 'a
consensus for Ed'.  And we can include all other votes with a
matching RSA key and no statement about Ed keys as being "also about
the same relay."

After that, we look for RSA keys we haven't actually found an entry
for yet, and see if there are enough votes for them, NOT considering
Ed keys.  If there are, we match them as before, but we treat them
as "not a consensus about ed".

When we include an entry in a consensus, if it does not reflect a
consensus about ed keys, then we include a new NoEdConsensus flag on
it.

This is all only for consensus method 22 or later.

Also see corresponding dir-spec patch.
2016-03-21 13:24:09 -04:00
Nick Mathewson
6182e34628 Document dircollate.c (and remove an unused global) 2016-03-21 13:23:32 -04:00
Nick Mathewson
60efce445b Enable ed25519 collator in voting.
Previously, I had left in some debugging code with /*XXX*/ after it,
which nobody noticed.  Live and learn!  Next time I will use /*XXX
DO NOT COMMIT*/ or something.

We need to define a new consensus method for this; consensus method
21 shouldn't actually be used.

Fixes bug 17702; bugfix on 0.2.7.2-alpha.
2016-02-22 10:07:42 -05:00
Sebastian Hahn
63db8170ae Fix typo in double_digest_map type 2015-08-18 08:18:44 -04:00
Nick Mathewson
d31877c6bf Fix some memory leaks in ed25519 code and tests 2015-06-01 10:26:11 -04:00
Andrea Shepard
0e0b65db4f Appease make check-spaces 2015-06-01 12:59:14 +00:00
Nick Mathewson
d4a6b1a420 Implement ed25519 identity collation for voting.
This is a new collator type that follows proposal 220 for deciding
which identities to include.  The rule is (approximately):

  If a <ed,rsa> identity is listed by more than half of authorities,
  include it.  And include all <rsa> votes about that node as
  matching.

  Otherwise, if an <*,rsa> or <rsa> identity is listed by more than
  half of the authorities, and no <ed,rsa> has been listed, include
  it.
2015-05-28 10:42:29 -04:00
Nick Mathewson
6c564e6c08 Refactor code that matches up routers with the same identity in votes
This makes 'routerstatus collation' into a first-class concept, so
we can change how that works for prop220.
2015-05-28 10:42:29 -04:00