Commit Graph

10 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
e942e70651
lnwallet: extend the SignDescriptor to include a PrivateTweak
This commit extends the SignDescriptor with a single attribute, the
‘PrivateTweak’. The duties of the Signer interface have also been
augmented to properly derive a private key using the specified tweak,
iff it’s non-nil.

As currently defined in order to generate the proper private key based
off of a PrivateTweak, the signer is to add the tweak value to the
private key for the specified public key. This generated value is to be
used for signing within the specified context.

This change paves the way for automatic revoked output sweeping with
signatures generated directly by the Signer interface, maintaining the
structure of the abstraction.

A test has been added at the interface level in order to excerise each
WalletController’s implementation of the key derivation as currently
defined.
2016-11-18 17:12:58 -08:00
andrew.shvv
e515710a7d multi: use witnessScript everywhere instead of redeemScript
This commit consists of a mass variable renaming to call the pkScript being executed for segwit outputs the `witnessScript` instead of `redeemScript`. The latter naming convention is generally considered to be reserved for the context of BIP 16 execution. With segwit to be deployed soon, we should be using the correct terminology uniformly through the codebase. 

In addition some minor typos throughout the codebase has been fixed.
2016-10-15 16:02:09 -07:00
Olaoluwa Osuntokun
2eb1936cce
lnwallet: extend the WalletController with a new txn pub/sub client
This commit adds a new simple interface related to the WalletController
which allows for subscribing to new notifications as transactions
relevant to the wallet are seen on at the network and/or mined. The
TransactionSubscription interface will prove useful for building higher
level UI’s on-top of the daemon which update the presentation layer in
response to received notifications.
2016-10-15 14:07:24 -07:00
Olaoluwa Osuntokun
78cfcc28b7
lnwallet: add method to list relevant txns to WalletController interface 2016-10-14 20:14:15 -07:00
Olaoluwa Osuntokun
d0353b2864
lnwallet: add ability to trigger a force closure within channel state machine
This commit introduces the concept of a manually initiated “force”
closer within the channel state machine. A force closure is a closure
initiated by a  local subsystem which broadcasts the current commitment
state directly on-chain rather than attempting to cooperatively
negotiate a closure with the remote party.

A force closure returns a ForceCloseSummary which includes all the
details required for claiming all rightfully owned outputs within the
broadcast commitment transaction.

Additionally two new publicly exported channels are introduced, one
which is closed due a locally initiated force closure, and the other
which is closed once we detect that the remote party has executed a
unilateral closure by broadcasting their version of the commitment
transaction.
2016-09-12 19:07:35 -07:00
Olaoluwa Osuntokun
5449ba2b34
lnwallet: revamp interfaces, add BlockChainIO and Singer
This commit revamps the previous WalletController interface, edging it
closer to a more complete version.

Additionally, this commit also introduces two new interfaces:
BlockchainIO, and Singer along with a new factor driver struct, the
WalletDriver.

This BlockChainIO abstracts read-only access to the blockchain, while
the Singer interface abstracts the signing of inputs from the base
wallet paving the way to hardware wallets, air-gapped signing, etc.

Finally, in order to provide an easy method for selecting a particular
concrete implementation of a WalletController interface, the concept of
registering “WalletDriver”s has been introduced. A wallet driver is
essentially the encapsulation of a factory function capable of create a
new instance of a Wallet Controller.
2016-09-08 12:25:28 -07:00
Olaoluwa Osuntokun
8bbd010f74
lnwallet: use the ChainNotifier interface throughout instead of BtcdNotifier
This commit refactors the code within lnwallet interacting with the
ChainNotifier to accept, and call against the implementation rather
than a single concrete implementation.

LightningWallet no longer creates it’s own BtcdNotifier implementation
doing construction, now instead accepting a pre-started `ChainNotifier`
interface.  All imports have been updated to reflect the new naming
scheme.
2016-09-01 19:13:19 -07:00
Olaoluwa Osuntokun
fcff17c336
multi: change all imports to roasbeef's forks
This commit will allow the general public to build lnd without jumping
through hoops setting up their local git branches nicely with all of
our forks.
2016-05-15 17:22:37 +03:00
Olaoluwa Osuntokun
f9a8dcbc9c lnwallet: add ListUnspentWitness to WalletController
This method has been added in order to allow lnd to collect eligible
unspent witness programs outputs from the wallet controller for use as
inputs to the funding transaction.

Additionally, the change address functions now also specify whether the
generated change address should be payable to a witness program or not.
2016-04-12 21:36:41 -07:00
Olaoluwa Osuntokun
10d52611cd lnwallet: introduce WalletController interface as a "base wallet"
The WalletController will serve as a layer of separation between “base”
Bitcoin wallet logic, and the higher level Lightning Network logic. As
a result LightningWallet will no behave as an overly wallet, relying on
the lower wallet for basic services such as new address, signing etc.

Within this higher level lies the awareness of channel types, chain
monitoring, HTLCs, and so on.
2016-03-24 16:19:57 -07:00