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280a97cbaa
Prior to this commit, taproot channels had a bug: - If a disconnect happened before peer.AddNewChannel was called, then the subsequent reconnect would call peer.AddNewChannel and attempt the ChannelReestablish dance. - peer.AddNewChannel would call NewLightningChannel with populated nonce ChannelOpts. This in turn would call InitRemoteMusigNonces which would create a new musig pair session and set the channel's pendingVerificationNonce to nil. - During the reestablish dance, ProcessChanSyncMsg would be called. This would also call InitRemoteMusigNonces, except it would fail since pendingVerificationNonce was set to nil in the previous invocation. To fix this, we add a new functional option to signal to the init logic that it doesn't need to call InitRemoteMusigNonces in in ProcessChanSyncMsg.
lnwallet
The lnwallet package implements an abstracted wallet controller that is able to drive channel funding workflows, a number of script utilities, witness generation functions for the various Lightning scripts, revocation key derivation, and the commitment update state machine.
The package is used within lnd as the core wallet of the daemon. The wallet
itself is composed of several distinct interfaces that decouple the
implementation of things like signing and blockchain access. This separation
allows new WalletController implementations to be easily dropped into
lnd without disrupting the code base. A series of integration tests at the
interface level are also in place to ensure conformance of the implementation
with the interface.
Installation and Updating
$ go get -u github.com/lightningnetwork/lnd/lnwallet