Commit Graph

74 Commits

Author SHA1 Message Date
Johan T. Halseth
db0ec12412
breacharbiter: broadcast "splitted" justice tx if spend all not
confirming

In case 4 block passes without our justice tx confirming, we'll "split"
it up, and separately sweep the commitment outs, and HTLC outs.
2021-05-12 12:32:29 +02:00
Johan T. Halseth
2d710154c4
breacharbiter: create split variants of justice tx
We define a new struct justiceTxVariants, which holds three different
justice transactions:

1. The "normal" justice tx that spends all breached outputs
2. A tx that spends only the breached to_local output and to_remote output
   (can be nil if none of these exist)
3. A tx that spends all the breached HTLC outputs (can be nil if no HTLC
   outputs exist)

This will later be used to sweep the time sensitive outputs separately,
in case the normal justice tx doesn't confirm in time.
2021-05-12 12:32:29 +02:00
Johan T. Halseth
783d1f9578
breacharbiter: remove justiceTx finalization
Now that we don't rely on the justice tx TXID anymore, we can remove
finalization of it. Instead we'll recreate the transaction when needed
from the persisted retribution info.
2021-05-12 12:32:29 +02:00
Johan T. Halseth
3be9b74694
breacharbiter: replace justice tx conf check with spend check
Since we want to potentially broadcast multiple versions of the justice
TX, instead of waiting for confirmation of a specific TXID, we instead
wait for the breached outputs to be spent.
2021-05-12 12:32:29 +02:00
Johan T. Halseth
c3b2791158
breacharbiter: don't transition to second level if own spend 2021-05-12 12:32:29 +02:00
Johan T. Halseth
e7ee5ad51f
breacharbiter_test: extract sweep tx creation into method 2021-05-12 12:32:29 +02:00
Johan T. Halseth
a192718807
breacharbiter_test: distinguish spending transactions from justice tx
inputs

Since we want to test more complex combinations of spends of the
breached outputs, we use two maps tracking

1. which transaction will spend the outpoint
2. which outpoints we expect the breacharbiter to include in the justice
   tx

This let us trigger spends of the individual outputs, and depending on
what we want to test check whether the breacharbiter sweeps the expected
outpoints.
2021-05-12 12:32:28 +02:00
Johan T. Halseth
bdc1f3100d
breachabirter+contraccourt: convert ProcessACK to function closure 2021-05-06 12:37:11 +02:00
eugene
bc238ee84c
lnd+lnwallet: make capacity check stricter by adding fee
Also patches breacharbiter tests by using the correct commitment
fee and balances.
2021-02-22 12:07:21 -05:00
eugene
f8b98a1d3b
lntest/channels: introduce subpackage to deduplicate static structs 2021-01-25 14:04:39 -05:00
Andras Banki-Horvath
2a358327f4
multi: add reset closure to kvdb.View
This commit adds a reset() closure to the kvdb.View function which will
be called before each retry (including the first) of the view
transaction. The reset() closure can be used to reset external state
(eg slices or maps) where the view closure puts intermediate results.
2020-11-05 17:57:12 +01:00
eugene
9ce89c1b46 lnd: delete mock.go, move mockSpendNotifier to lntest/mock 2020-08-31 20:06:11 -04:00
eugene
c7cbacc35b multi: move mockChainIO, mockNotifier to lntest/mock 2020-08-31 19:41:09 -04:00
eugene
49d8f04197 multi: migrate instances of mockSigner to the mock package
This commit moves all localized instances of mock implementations of
the Signer interface to the lntest/mock package. This allows us to
remove a lot of code and have it housed under a single interface in
many cases.
2020-08-28 15:43:51 -04:00
Matheus Degiovani
c76356e7be breacharbiter: fix flaky race condition in test
This fixes a possible race condition during TestBreachSpends that could
cause the test to fail in a flaky way.

The error returned in PublishTransaction (publErr) could be modified by
the main test goroutine before PublishTransaction had a chance to
return, causing the wrong error value to be returned.

This was mostly visible as a flake during TestBreachSpends/all_spends
where adding a one second delay in the old code between the send in
publTx and the call to publMtx.Lock() would cause the last iteration of
the test loop to fail.

This is fixed by moving the lock and locally storing the expected error
value to before the send so that each call to PublishTransaction is
guaranteed to return the correct error value.
2020-06-09 10:40:22 -03:00
carla
75370ce6b4
multi: update WalletController PublishTransaction to include label
Add label parameter to PublishTransaction in WalletController
interface. A labels package is added to store generic labels that are
used for the different types of transactions that are published by lnd.

To keep commit size down, the two endpoints that require a label
parameter be passed down have a todo added, which will be removed in
subsequent commits.
2020-05-19 13:30:00 +02:00
Johan T. Halseth
5e3718a1b5
lnwallet: use channel type to derive keys
We abstract away how keys are generated for the different channel types
types (currently tweak(less)).

Intention is that more of the logic that is unique for each commitment
type lives in commitment.go, making the channel state machine oblivious
to the keys and outputs being created on the commitment tx for a given
channel state.
2020-01-06 12:08:05 +01:00
Olaoluwa Osuntokun
4592f87033
Merge pull request #3653 from Roasbeef/external-funding-chainfees
chainfees: create new chainfees package extracting fees from lnwallet
2019-10-31 17:44:00 -07:00
Olaoluwa Osuntokun
777ed104a3
chainfee: create new chainfee package extracting fees from lnwallet
In this commit, we create a new chainfee package, that houses all fee
related functionality used within the codebase. The creation of this new
package furthers our long-term goal of extracting functionality from the
bloated `lnwallet` package into new distinct packages. Additionally,
this new packages resolves a class of import cycle that could arise if a
new package that was imported by something in `lnwallet` wanted to use
the existing fee related functions in the prior `lnwallet` package.
2019-10-31 16:41:57 -07:00
Olaoluwa Osuntokun
a73ee28e46
multi: convert the existing channeldb.ChannelType uint8 into a bit field
In this commit, we convert the existing `channeldb.ChannelType` type
into a _bit field_. This doesn't require us to change the current
serialization or interpretation or the type as it is, since all the
current defined values us a distinct bit. This PR lays the ground work
for any future changes that may introduce new channel types (like anchor
outputs), and also any changes that may modify the existing invariants
around channels (if we're the initiator, we always have the funding
transaction).
2019-10-31 16:34:37 -07:00
Olaoluwa Osuntokun
a58cfa65ff
lnwallet+breacharbiter: update breach logic to be aware of new commitment format
In this commit, we update the brar logic in the channel state machine,
and also the brar itself to be aware of the new commitment format.
Similar to the unilateral close summary, we'll now blank out the
SingleTweak field in `NewBreachRetribution` if it's a tweakless
commitment. The brar will then use this to properly identify the
commitment type, to ensure we use the proper witness generation function
when we're handling our own breach.
2019-09-25 18:25:58 -07:00
Olaoluwa Osuntokun
0b62126067
multi: update funding workflow to be aware of new tweakless commits
In this commit, we update the funding workflow to be aware of the new
channel type that doesn't tweak the remote party's output within the
non-delay script on their commitment transaction. To do this, we now
allow the caller of `InnitChannelReservation` to signal if they want the
old or new (tweakless) commitment style.

The funding tests are also updated to test both funding variants, as
we'll still need to understand the legacy format for older nodes.
2019-09-25 18:25:46 -07:00
Conner Fromknecht
1d41d4d666
multi: move WaitPredicate, WaitNoError, WaitInvariant to lntest/wait 2019-09-19 12:46:29 -07:00
Lars Lehtonen
3b29ecb921 routing: Fix dropped errors in tests.
lnd: Fix dropped errors in tests.

contractcourt: Fix dropped errors in tests.

htlcswitch: Fix dropped errors in tests.

invoices: Fix dropped error in tests.

lnwallet: Fix dropped errors in tests.

macaroons: Fix dropped error in tests.
2019-09-13 06:28:05 +00:00
Joost Jager
3d7de2ad39
multi: remove dead code 2019-09-10 17:21:59 +02:00
Olaoluwa Osuntokun
5f0fad85be multi: address lingering TODO by no longer wiping out local HTLCs on remote close
In this commit, we fix a lingering TOOD statement in the channel arb.
Before this commitment, we would simply wipe our our local HTLC set of
the HTLC set that was on the remote commitment transaction on force
close. This was incorrect as if our commitment transaction had an HTLC
that the remote commitment didn't, then we would fail to cancel that
back, and cause both channels to time out on chain.

In order to remedy this, we introduce a new `HtlcSetKey` struct to track
all 3 possible in-flight set of HTLCs: ours, theirs, and their pending.

We also we start to tack on additional data to all the unilateral close
messages we send to subscribers. This new data is the CommitSet, or the
set of valid commitments at channel closure time. This new information
will be used by the channel arb in an upcoming commit to ensure it will
cancel back HTLCs in the case of split commitment state.

Finally, we start to thread through an optional *CommitSet to the
advanceState method. This additional information will give the channel
arb addition information it needs to ensure it properly cancels back
HTLCs that are about to time out or may time out depending on which
commitment is played.

Within the htlcswitch pakage, we modify the `SignNextCommitment` method
to return the new set of pending HTLCs for the remote party's commitment
transaction and `ReceiveRevocation` to return the latest set of
commitment transactions on the remote party's commitment as well. This
is a preparatory change which is part of a larger change to address a
lingering TODO in the cnct.

Additionally, rather than just send of the set of HTLCs after the we
revoke, we'll also send of the set of HTLCs after the remote party
revokes, and we create a pending commitment state for it.
2019-05-27 14:34:13 -07:00
Joost Jager
d55a8b7b29
channel+cnct: remove preimage from channel and resolution
Now that the success resolver preimage field is always populated by the
incoming contest resolver, preimage lookups earlier in the
process (channel and channel arbitrator) can mostly be removed.
2019-05-15 14:41:49 +02:00
Johan T. Halseth
b53899c43c
lnd: rename package main->lnd 2019-04-23 20:57:33 +02:00
Conner Fromknecht
9523b420bc
breacharbiter_test: add table-driven breach spend tests 2019-03-19 19:25:57 -07:00
Conner Fromknecht
29f07a58cb
cnct+lnwl+hswc: use lntypes.Preimage for witness beacon 2019-02-19 17:06:00 -08:00
Joost Jager
9e012ecc93
multi: move Input interface and related code
This commit is a step to split the lnwallet package. It puts the Input
interface and implementations in a separate package along with all their
dependencies from lnwallet.
2019-01-31 13:25:33 +01:00
Olaoluwa Osuntokun
821de3e107
test: remove FullSync call from breacharbiter_test.go
In this commit, we remove an extra openChannel.FullSync() call from
breacharbiter_test.go. Before this collective diff, calling
SyncPending() then FullSync() didn't result in an error. However, a
prior commit now makes this an error to ensure we don't attempt to
override any existing channels. This is the only area in the codebase
that we made this mistake which in this case, was benign.
2019-01-28 20:24:43 -08:00
Wilmer Paulino
b951f06456
multi: move CsvDelay into ChannelConstraints 2019-01-11 16:58:15 -08:00
Conner Fromknecht
eb2f5cecf6
multi: remove breach tx arg from NewBreachRetribution args
This commit removes the breach transaction from the
arguments passed to NewBreachRetribution. We already
keep all prior remote commitments on disk in the
commitment log, and load that transaction from disk
inside the method. In practice, the one loaded from
disk will be the same one that is passed in by the
caller, so there should be no change in behavior
as we've already derived the appropriate state number.

This changes makes integration with the watchtower
client simpler, since we no longer need to acquire
the breaching commitment transaction to be able to
construct the BreachRetribution. This simplifies
not only the logic surrounding transient backsups,
but also on startup (and later, retroactively
backing up historic updates).
2019-01-10 13:13:38 -08:00
Joost Jager
91f3df07e4
lnwallet: prevent static fee estimator fees from being modified
Modifying the static fees is not thread safe. In this commit the fees
are made immutable.
2018-12-18 10:50:05 +01:00
Olaoluwa Osuntokun
fa160f559c
multi: replace per channel sigPool with global daemon level sigPool
In this commit, we remove the per channel `sigPool` within the
`lnwallet.LightningChannel` struct. With this change, we ensure that as
the number of channels grows, the number of gouroutines idling in the
sigPool stays constant. It's the case that currently on the daemon, most
channels are likely inactive, with only a hand full actually
consistently carrying out channel updates. As a result, this change
should reduce the amount of idle CPU usage, as we have less active
goroutines in select loops.

In order to make this change, the `SigPool` itself has been publicly
exported such that outside callers can make a `SigPool` and pass it into
newly created channels. Since the sig pool now lives outside the
channel, we were also able to do away with the Stop() method on the
channel all together.

Finally, the server is the sub-system that is currently responsible for
managing the `SigPool` within lnd.
2018-12-16 15:40:14 -08:00
Olaoluwa Osuntokun
1fd3aac925
multi: switch from bolt packge to bbolt package for all imports 2018-11-29 20:33:49 -08:00
Conner Fromknecht
10b35a8f20
main: remove disable log in testing + clean up imports 2018-10-05 13:04:45 +09:00
Wilmer Paulino
9d2eeb6304
multi: update to latest fee estimation interface 2018-08-09 17:29:52 -07:00
Conner Fromknecht
cf2c371042
multi: fix linting errors 2018-08-02 18:20:50 -07:00
Olaoluwa Osuntokun
067db8572c
test+lnd: update unit test mocks to adhere to new interface API's 2018-07-31 21:28:58 -07:00
Olaoluwa Osuntokun
2d421b8e3c
breacharbiter: update breachArbiter to register for conf's using pkScripts 2018-07-31 21:28:51 -07:00
Olaoluwa Osuntokun
6f60f139f4 multi: switch over import paths from roasbeef/* to btcsuite/* 2018-07-13 17:05:39 -07:00
Johan T. Halseth
e0560741b4
breacharbiter test: add TestBreachSecondLevelTransfer 2018-06-15 12:11:13 +02:00
Johan T. Halseth
9aa55b164e
breacharbiter test: extract common init logic 2018-06-15 12:11:13 +02:00
Conner Fromknecht
f963f91a3c
multi: use mutex-guarded ShortChanID() on OpenChannel 2018-05-09 16:06:49 -07:00
Johan T. Halseth
690992043b
breacharbiter_test: add double handoff event 2018-05-02 08:43:32 +02:00
Johan T. Halseth
55ac8735b6
breacharbiter_test: use ContractBreaches channel 2018-05-02 08:43:30 +02:00
Johan T. Halseth
634e23720e
breacharbiter_test: use RemoteUnilateralCloseSummary and LocalForceCloseSummary 2018-04-25 09:37:23 +02:00
Olaoluwa Osuntokun
4253b85309
test: ensure tests convert from BTC to SAT properly
This commit is a follow up to the prior commit which fixed a rounding
error bug in lnwallet. For uniformity, we also fix other occurrences in
the breach arbiter, as well as the integration tests.
2018-03-25 19:17:01 -07:00