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https://github.com/lightningnetwork/lnd.git
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15978a8691
In this commit, we add support for the new musig2 channel funding flow. This flow is identical to the existing flow, but not both sides need to exchange local nonces up front, and then signatures sent are now partial signatures instead of regular signatures. The funding manager also gains some new state of the local nonces it needs to generate in order to send the funding locked message, and also process the funding locked message from the remote party. In order to allow the funding manger to generate the nonces that need to be applied to each channel, then AddNewChannel method has been modified to accept a set of options that the peer will then use to bind the nonces to a new channel.
78 lines
3.0 KiB
Go
78 lines
3.0 KiB
Go
package lnpeer
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import (
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"net"
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"github.com/btcsuite/btcd/btcec/v2"
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"github.com/btcsuite/btcd/wire"
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"github.com/lightningnetwork/lnd/channeldb"
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"github.com/lightningnetwork/lnd/lnwallet"
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"github.com/lightningnetwork/lnd/lnwire"
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)
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// NewChannel is a newly funded channel. This struct couples a channel along
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// with the set of channel options that may change how the channel is created.
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// This can be used to pass along the nonce state needed for taproot channels.
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type NewChannel struct {
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*channeldb.OpenChannel
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// ChanOpts can be used to change how the channel is created.
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ChanOpts []lnwallet.ChannelOpt
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}
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// Peer is an interface which represents a remote lightning node.
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type Peer interface {
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// SendMessage sends a variadic number of high-priority message to
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// remote peer. The first argument denotes if the method should block
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// until the messages have been sent to the remote peer or an error is
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// returned, otherwise it returns immediately after queuing.
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SendMessage(sync bool, msgs ...lnwire.Message) error
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// SendMessageLazy sends a variadic number of low-priority message to
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// remote peer. The first argument denotes if the method should block
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// until the messages have been sent to the remote peer or an error is
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// returned, otherwise it returns immediately after queueing.
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SendMessageLazy(sync bool, msgs ...lnwire.Message) error
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// AddNewChannel adds a new channel to the peer. The channel should fail
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// to be added if the cancel channel is closed.
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AddNewChannel(newChan *NewChannel, cancel <-chan struct{}) error
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// AddPendingChannel adds a pending open channel ID to the peer. The
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// channel should fail to be added if the cancel chan is closed.
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AddPendingChannel(cid lnwire.ChannelID, cancel <-chan struct{}) error
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// RemovePendingChannel removes a pending open channel ID to the peer.
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RemovePendingChannel(cid lnwire.ChannelID) error
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// WipeChannel removes the channel uniquely identified by its channel
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// point from all indexes associated with the peer.
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WipeChannel(*wire.OutPoint)
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// PubKey returns the serialized public key of the remote peer.
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PubKey() [33]byte
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// IdentityKey returns the public key of the remote peer.
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IdentityKey() *btcec.PublicKey
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// Address returns the network address of the remote peer.
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Address() net.Addr
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// QuitSignal is a method that should return a channel which will be
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// sent upon or closed once the backing peer exits. This allows callers
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// using the interface to cancel any processing in the event the backing
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// implementation exits.
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QuitSignal() <-chan struct{}
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// LocalFeatures returns the set of features that has been advertised by
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// the us to the remote peer. This allows sub-systems that use this
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// interface to gate their behavior off the set of negotiated feature
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// bits.
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LocalFeatures() *lnwire.FeatureVector
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// RemoteFeatures returns the set of features that has been advertised
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// by the remote peer. This allows sub-systems that use this interface
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// to gate their behavior off the set of negotiated feature bits.
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RemoteFeatures() *lnwire.FeatureVector
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}
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