Commit Graph

66 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
2faafbcd93
breacharbiter: properly account for second-level spends during breach remedy
In this commit, we address an un accounted for case during the breach
remedy process. If the remote node actually went directly to the second
layer during a channel breach attempt, then we wouldn’t properly be
able to sweep with out justice transaction, as some HTLC inputs may
actually be spent at that point.

In order to address this case, we’ll now catch the transaction
rejection, then check to see which input was spent, promote that to a
second level spend, and repeat as necessary. At the end of this loop,
any inputs which have been spent to the second level will have had the
prevouts and witnesses updated.

In order to perform this transition, we now also store the second level
witness script in the database. This allow us to modify the sign desc
with the proper input value, as well as witness script.
2018-01-22 19:20:01 -08:00
Olaoluwa Osuntokun
0d75dde153
breacharbiter: also listen for the co-op chan close signal 2018-01-22 19:19:55 -08:00
Olaoluwa Osuntokun
94504a9d41
breacharbiter: notify the ChainArbitrator of fresh signals for a channel on startup 2018-01-22 19:19:37 -08:00
Conner Fromknecht
ff3a1389e5
breacharbiter_test: remove channel close summary fields 2018-01-05 13:47:16 -08:00
Matt Drollette
adf0d98194 multi: fix several typos in godoc comments 2017-12-17 18:40:05 -08:00
Olaoluwa Osuntokun
841f4f73cf
breacharbiter: update tests to add chainHash to retributionInfo in test data 2017-11-10 19:51:09 -08:00
Conner Fromknecht
4c19320ea0
breacharbiter_test: updated test vectors for new retInfo struct 2017-09-25 18:57:03 -07:00
Conner Fromknecht
7ee7bf840a
breacharbiter_test: properly assigns SignDescriptor w/o ptr 2017-09-19 19:18:20 -07:00
Conner Fromknecht
9cc9977f95
breacharbiter_test: modify test vectors to support new structs 2017-09-19 19:18:19 -07:00
Olaoluwa Osuntokun
2c556d11c7
build: update travis config to use go 1.9 and 1.8.3 2017-08-30 20:37:47 -07:00
Conner Fromknecht
501e1dae23 breacharbiter_test: improves documentation for ba test cases 2017-08-25 17:56:50 -07:00
Conner Fromknecht
ce17d18249 breacharbiter_test: adds RetributionStore persistence unit tests 2017-08-25 17:56:50 -07:00
Conner Fromknecht
c3736e6893 breacharbiter: adds persistence to retribution flow
This commit introduces a RetributionStore interface, which
  establishes the methods used to access persisted information
  regarding breached channels. A RetributionStore is used to
  persist retributionInfo regarding all channels for which
  the wallet has signaled a breach.

  The current design could be improved by moving certain
  functionality, e.g. closing channels and htlc links, such
  that they are handled by upstream by their respective
  subsystems. This was investigated, but deemed preferable to
  postpone to a later update to prevent the current
  implementation from sprawling amongst too many packages.

  The test suite creates a mockRetributionStore and ensures that
  it exhibits the same behavior as the retribution store backed
  by a channeldb.DB.
2017-08-25 17:56:50 -07:00
Conner Fromknecht
8698085e35 breacharbiter: reverts retributionInfo naming and realign diffs 2017-08-25 17:56:50 -07:00
Philip Hayes
ce411f8e22 lint: fix linter complaints 2017-08-25 17:56:50 -07:00
Philip Hayes
b19c483a04 breacharbiter: add retribution state persistence
This commit adds a breached contract retribution storage layer using
boltdb to the breach arbiter. The breach arbiter now stores retribution
state on disk between detecting a contract breach, broadcasting a
justice transaction that sweeps the channel, and finally witnessing the
justice transaction confirm on the blockchain. It is critical that such
state is persisted on disk, so that if our node restarts at any point
during the retribution procedure, we can recover and continue from the
persisted state.
2017-08-25 17:56:50 -07:00