Commit Graph

901 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
a6cf6f4237
lnwallet+peer: remove unnecessary MaxPendingAmount method
We don't need this method, as we can directly access it from the peer
via public fields with its current usage.
2019-02-25 12:51:31 -03:00
Valentine Wallace
20b3114100 htlcswitch+lnwallet+peer: default max htlc in fwding policy of new chans
In this commit, we set a default max HTLC in the forwarding
policies of newly open channels.

The ForwardingPolicy's MaxHTLC field (added in this commit)
will later be used to decide whether an HTLC satisfies our policy before
forwarding it.

To ensure the ForwardingPolicy's MaxHTLC default matches the max HTLC
advertised in the ChannelUpdate sent out for this channel,  we also add
a MaxPendingAmount() function to the lnwallet.Channel.
2019-02-21 18:39:32 -08:00
Conner Fromknecht
29f07a58cb
cnct+lnwl+hswc: use lntypes.Preimage for witness beacon 2019-02-19 17:06:00 -08:00
Conner Fromknecht
30f61b7630
multi: make AddPreimage variadic, optimistically compute key
In this commit, we modify the WitnessCache's
AddPreimage method to accept a variadic number
of preimages. This enables callers to batch
preimage writes in performance critical areas
of the codebase, e.g. the htlcswitch.

Additionally, we lift the computation of the
witnesses' keys outside of the db transaction.
This saves us from having to do hashing inside
and blocking other callers, and limits extraneous
blocking at the call site.
2019-02-19 17:05:04 -08:00
Olaoluwa Osuntokun
948646b58b
Merge pull request #2481 from joostjager/move-input
multi: move input to separate package
2019-01-31 16:48:31 -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
Joost Jager
667474db75
lnwallet: move code to transactions files 2019-01-31 13:24:39 +01:00
Johan T. Halseth
47918bd6ce
lnwallet/channel: add restoration sanity check
To avoid more bugs slipping through where the logIndex is not set, we
panic to catch this. This was earlier done for Adds and the htlcCounter,
which did lead us to find the resulting retoration bug.
2019-01-31 09:24:50 +01:00
Johan T. Halseth
9a0f87fd8e
lnwallet/channel_test: add TestFeeUpdateOldDiskFormat
TestFeeUpdateOldDiskFormat tests that we properly recover FeeUpdates
written to disk using the old format, where the logIndex was not
written.
2019-01-31 09:24:50 +01:00
Johan T. Halseth
b593c1c7c7
lnwallet/channel: set logIndex for restored FeeUpdate
Earlier versions did not write the log index to disk for fee updates, so
they will be unset. To account for this we set them to to current update
log index.
2019-01-31 09:24:49 +01:00
Olaoluwa Osuntokun
1863dcef1f
Merge pull request #2371 from Roasbeef/static-chan-backups-channeldb
channeldb: prepatory modifications for full SCB implementation
2019-01-30 14:40:27 -08:00
Olaoluwa Osuntokun
b220c47ce7
Revert "funding+lnwallet: ensure max_htlc_value_in_flight smaller than capacity"
This reverts commit 4aa52d267f000f84caf912c62fc14a5b8e7cacb5.

It turns out that the other implementations set values for this field
which aren't based on the actual capacity of the channel. As a result,
we'll no reject most of their channel offerings, since they may offer a
value of a max `uint64` or something else hard coded that's above the
size of the channel. As a result, we're reverting this check for now to
maintain proper compatibility.
2019-01-29 17:58:04 -08:00
Olaoluwa Osuntokun
9e5723e1bc
lnwallet: modify ForceClose to disallow closing if local data loss
In this commit, we ensure that if a channel is detected to have local
data loss, then we don't allow a force close attempt, as this may not be
possible, or cause us to play an invalid state.
2019-01-28 20:24:42 -08:00
Wilmer Paulino
93754f8d37
lnwallet: add HtlcPoint() resolution helper methods
Co-authored-by: Joost Jager <joost.jager@gmail.com>
2019-01-22 20:47:13 -08:00
Johan T. Halseth
4aa52d267f
funding+lnwallet: ensure max_htlc_value_in_flight smaller than capacity
Return an error to the remote if larger.
2019-01-22 08:42:29 +01:00
Wilmer Paulino
c72da48111
multi: update to latest ChainNotifier impl New method 2019-01-21 13:57:43 -08:00
Olaoluwa Osuntokun
509bed614c
Merge pull request #2198 from Roasbeef/sendall-rpc
multi: add ability to sweep all coins in the the wallet to an addr to sendcoins
2019-01-15 14:49:17 -08:00
Olaoluwa Osuntokun
9c59ac4383
Merge pull request #2397 from halseth/reject-commitment-expected-fee-reset-bug
[bugfix] Process fee updates as any other update message
2019-01-14 17:06:27 -08:00
Olaoluwa Osuntokun
815c4a9e0d
Merge pull request #2275 from wpaulino/funding-max-confs
fundingmanager: rejects funding requests with number of confirmations too large
2019-01-14 17:04:28 -08:00
Wilmer Paulino
4f953afeee
lnwallet+fundingmanager: enforce max MinAcceptDepth within funding proposals 2019-01-11 17:05:35 -08:00
Wilmer Paulino
71410f6a08
lnwallet+fundingmanager: use ChannelConstraints struct with CommitConstraints 2019-01-11 17:01:27 -08:00
Wilmer Paulino
b951f06456
multi: move CsvDelay into ChannelConstraints 2019-01-11 16:58:15 -08:00
Olaoluwa Osuntokun
400a1d3282
Merge pull request #2431 from cfromknecht/keyring-remote-delay-retribution
lnwallet: Add keyring and remote CSV delay to BreachRetribution
2019-01-11 15:33:16 -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
Johan T. Halseth
e6ee835bbe
lnwallet/channel_test: assert FeeUpdate is removed from logs after lock-in 2019-01-10 12:31:12 +01:00
Johan T. Halseth
dadfcefc07
lnwallet/channel: don't return feePerKw from computeView
Since the feerate is part of the computed view now, we don't have to
pass the found feerate as a distinct parameter.
2019-01-10 12:31:12 +01:00
Johan T. Halseth
7e015258cd
lnwallet/channel test: add TestUpdateFeeConcurrentSig
This tests make sure we don't reset our expected fee upate after signing
our next commitment. This test would fail without the previous set of
commits.
2019-01-10 12:31:12 +01:00
Johan T. Halseth
6ffd354d63
lnwallet/channel: add fee updates to update logs
Instead of special casing the UpdateFee messages, we instead add them to
the update logs like any other HTLC update message. This lets us avoid
having to keep an extra set of variables to keep track of the fee
updates, and instead reuse the commit/ack logic used for other updates.

This fixes a bug where we would reset the pendingFeeUpdate variable
after signing our next commitment, which would make us calculate the new
fee incorrectly if the remote sent a commitment concurrently.

When restoring state logs, we also make sure to re-add any fee updates.
2019-01-10 12:31:12 +01:00
Johan T. Halseth
810c56cdb9
lnwallet/channel: process FeeUpdate found in update log
This commit makes the evaluateHTLCView method process any found
FeeUpdates in the logs, by returning the last set feerate.
2019-01-10 12:31:11 +01:00
Johan T. Halseth
277949cb0e
lnwallet/channel: remove FeeUpdates when compacting logs
When compacting the update logs we remove any fee updates when they
remove height is passed. We do this since we'll assume fee updates are
added and removed at the same commit height, as they will apply for all
commitments following the fee update.
2019-01-10 12:26:41 +01:00
Johan T. Halseth
480f43f1dc
lnwallet/channel: add lnwire<->PaymentDescriptor FeeUpdate conversion
This commit adds conversion between the lnwire.UpdateFee message and the
new FeeUpdate PaymentDescriptor. We re-purpose the existing Amount field
in the PaymentDescriptor stuct to hold the feerate.
2019-01-10 12:26:33 +01:00
Johan T. Halseth
36857a1042
lnwallet/channel: add new PaymentDescriptor type FeeUpdate
This commit adds a new updateType that can be used for
PaymentDescriptors: FeeUpdate. We repurpose the fields of the existing
PaymentDescriptor struct such that we can easily re-use the commit/ack
logic used for other update types also for fee updates.
2019-01-10 12:23:56 +01:00
Olaoluwa Osuntokun
4b316d97c8
lnwallet: add new WithCoinSelectLock method to fix coin select race conditions
In this commit, we add a new method WithCoinSelectLock. This method will
allow us to fix bugs in the project atm that can arise if a channel
funding is attempted (either manually or by autopilot) while a users is
attempting to send an on-chain transaction. If this happens
concurrently, then both contexts will grab the set of UTXOs and attempt
to lock them one by one. However, since they didn't obtain an exclusive
snapshot of the UTXO set of the wallet, they may both attempt to lock
the same input.

We also ensure that calls to SendMany cannot run into this issue by
using the WithCoinSelectLock synchronization when attempting to instruct
the internal wallet to send payments.
2019-01-09 15:55:24 -08:00
Olaoluwa Osuntokun
40f0dbb5e6
lnwallet: add witness generation functions for p2wkh and np2wkh types 2019-01-09 15:55:21 -08:00
Olaoluwa Osuntokun
c18e166e03
lnwallet+sweep: extend the WitnessGenerator type to return an InputScript
In this commit, we extend the WitnessGenerator type to now return an
InputScript. This allows it to be more encompassing, as now callers can
expect a sigScript to be populated if the input being swept requires a
sigScript field.

Along the way, we've also renamed input.BuildWitness to
input.CraftInputScript.  We also take a step towards allowing the
sweeper to sweep transactions for n2pwkh outputs. We do so by modifying
the BuiltWitness method to instead return an InputScript. Additionally,
when populating inputs if a sigScript is present, it will now be
populated.
2019-01-09 15:55:19 -08:00
Olaoluwa Osuntokun
bd9ebbd5af
lnwallet: add more godoc to InputScript rename ScriptSig field to SigScript 2019-01-09 15:55:18 -08:00
Conner Fromknecht
cd54625c2d
lnwallet/channel: add keyring + remote csv to breach info 2019-01-07 17:15:33 -08:00
Alex Bosworth
a78e13929e
lnwallet: fix trivial comment typo 2019-01-06 11:39:12 -08:00
Olaoluwa Osuntokun
bd0177ddc5
Merge pull request #2325 from federicobond/remove-unused-rootkey
Remove unused LightningWallet.rootKey field
2018-12-20 17:16:16 -08:00
Olaoluwa Osuntokun
3fd03b2f4a
lnwallet: add a String() method to WitnessType 2018-12-18 10:50:08 +01:00
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
Joost Jager
423dd8ab9b
lnwallet: expose relay fee on fee estimators 2018-12-18 10:50:04 +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
Federico Bond
cfe8c88d89 Remove unused LightningWallet.rootKey field 2018-12-13 11:40:29 -03:00
AdamISZ
9bb2a26948
Add listunspent RPC call
Returns a brief json summary of each utxo found by calling
ListUnspentWitness in the wallet. The two arguments are the
minimum and maximum number of conrfirmations (0=include
unconfirmed)
2018-12-11 15:26:38 +01:00
Olaoluwa Osuntokun
1fd3aac925
multi: switch from bolt packge to bbolt package for all imports 2018-11-29 20:33:49 -08:00
Olaoluwa Osuntokun
42c4597921
Merge pull request #1937 from halseth/data-loss-protect-resending
Data loss protect resending
2018-11-25 20:47:16 -06:00
Johan T. Halseth
5c294601f0
lnwallet/channel: remove startingHeight from commitmentChain
Field is not being used.
2018-11-23 08:58:45 +01:00
Johan T. Halseth
a9f93b2988
contractcourt/chain_watcher: add channel sync message to CloseChannelSummary 2018-11-21 10:28:56 +01:00
Johan T. Halseth
676a1b1407
lnwallet+link: make ChanSyncMsg take channel state as arg
This lets us get the channel reestablish message without creating the LightningChannel struct first.
2018-11-21 10:28:56 +01:00