Merge pull request #4645 from Crypt-iQ/peer_messageconn
peer: abstractions to aid in unit testing
This commit is contained in:
Eugene
GitHub
commit
0a8f06651a
224
peer/brontide.go
224
peer/brontide.go
@ -17,20 +17,28 @@ import (
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"github.com/btcsuite/btcd/wire"
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"github.com/davecgh/go-spew/spew"
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"github.com/lightningnetwork/lnd/brontide"
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"github.com/lightningnetwork/lnd/buffer"
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"github.com/lightningnetwork/lnd/chainntnfs"
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"github.com/lightningnetwork/lnd/channeldb"
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"github.com/lightningnetwork/lnd/channelnotifier"
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"github.com/lightningnetwork/lnd/contractcourt"
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"github.com/lightningnetwork/lnd/discovery"
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"github.com/lightningnetwork/lnd/feature"
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"github.com/lightningnetwork/lnd/htlcswitch"
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"github.com/lightningnetwork/lnd/htlcswitch/hodl"
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"github.com/lightningnetwork/lnd/htlcswitch/hop"
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"github.com/lightningnetwork/lnd/input"
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"github.com/lightningnetwork/lnd/invoices"
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"github.com/lightningnetwork/lnd/lnpeer"
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"github.com/lightningnetwork/lnd/lnwallet"
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"github.com/lightningnetwork/lnd/lnwallet/chainfee"
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"github.com/lightningnetwork/lnd/lnwallet/chancloser"
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"github.com/lightningnetwork/lnd/lnwire"
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"github.com/lightningnetwork/lnd/netann"
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"github.com/lightningnetwork/lnd/pool"
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"github.com/lightningnetwork/lnd/queue"
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"github.com/lightningnetwork/lnd/ticker"
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"github.com/lightningnetwork/lnd/watchtower/wtclient"
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)
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const (
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@ -112,6 +120,209 @@ type TimestampedError struct {
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Timestamp time.Time
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}
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// Config defines configuration fields that are necessary for a peer object
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// to function.
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type Config struct {
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// Conn is the underlying network connection for this peer.
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Conn MessageConn
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// ConnReq stores information related to the persistent connection request
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// for this peer.
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ConnReq *connmgr.ConnReq
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// PubKeyBytes is the serialized, compressed public key of this peer.
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PubKeyBytes [33]byte
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// Addr is the network address of the peer.
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Addr *lnwire.NetAddress
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// Inbound indicates whether or not the peer is an inbound peer.
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Inbound bool
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// Features is the set of features that we advertise to the remote party.
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Features *lnwire.FeatureVector
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// LegacyFeatures is the set of features that we advertise to the remote
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// peer for backwards compatibility. Nodes that have not implemented
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// flat features will still be able to read our feature bits from the
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// legacy global field, but we will also advertise everything in the
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// default features field.
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LegacyFeatures *lnwire.FeatureVector
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// OutgoingCltvRejectDelta defines the number of blocks before expiry of
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// an htlc where we don't offer it anymore.
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OutgoingCltvRejectDelta uint32
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// ChanActiveTimeout specifies the duration the peer will wait to request
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// a channel reenable, beginning from the time the peer was started.
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ChanActiveTimeout time.Duration
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// ErrorBuffer stores a set of errors related to a peer. It contains error
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// messages that our peer has recently sent us over the wire and records of
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// unknown messages that were sent to us so that we can have a full track
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// record of the communication errors we have had with our peer. If we
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// choose to disconnect from a peer, it also stores the reason we had for
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// disconnecting.
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ErrorBuffer *queue.CircularBuffer
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// WritePool is the task pool that manages reuse of write buffers. Write
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// tasks are submitted to the pool in order to conserve the total number of
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// write buffers allocated at any one time, and decouple write buffer
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// allocation from the peer life cycle.
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WritePool *pool.Write
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// ReadPool is the task pool that manages reuse of read buffers.
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ReadPool *pool.Read
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// Switch is a pointer to the htlcswitch. It is used to setup, get, and
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// tear-down ChannelLinks.
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Switch *htlcswitch.Switch
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// InterceptSwitch is a pointer to the InterceptableSwitch, a wrapper around
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// the regular Switch. We only export it here to pass ForwardPackets to the
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// ChannelLinkConfig.
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InterceptSwitch *htlcswitch.InterceptableSwitch
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// ChannelDB is used to fetch opened channels, and closed channels.
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ChannelDB *channeldb.DB
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// ChannelGraph is a pointer to the channel graph which is used to
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// query information about the set of known active channels.
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ChannelGraph *channeldb.ChannelGraph
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// ChainArb is used to subscribe to channel events, update contract signals,
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// and force close channels.
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ChainArb *contractcourt.ChainArbitrator
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// AuthGossiper is needed so that the Brontide impl can register with the
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// gossiper and process remote channel announcements.
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AuthGossiper *discovery.AuthenticatedGossiper
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// ChanStatusMgr is used to set or un-set the disabled bit in channel
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// updates.
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ChanStatusMgr *netann.ChanStatusManager
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// ChainIO is used to retrieve the best block.
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ChainIO lnwallet.BlockChainIO
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// FeeEstimator is used to compute our target ideal fee-per-kw when
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// initializing the coop close process.
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FeeEstimator chainfee.Estimator
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// Signer is used when creating *lnwallet.LightningChannel instances.
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Signer input.Signer
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// SigPool is used when creating *lnwallet.LightningChannel instances.
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SigPool *lnwallet.SigPool
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// Wallet is used to publish transactions and generate delivery scripts
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// during the coop close process.
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Wallet *lnwallet.LightningWallet
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// ChainNotifier is used to receive confirmations of a coop close
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// transaction.
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ChainNotifier chainntnfs.ChainNotifier
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// RoutingPolicy is used to set the forwarding policy for links created by
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// the Brontide.
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RoutingPolicy htlcswitch.ForwardingPolicy
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// Sphinx is used when setting up ChannelLinks so they can decode sphinx
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// onion blobs.
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Sphinx *hop.OnionProcessor
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// WitnessBeacon is used when setting up ChannelLinks so they can add any
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// preimages that they learn.
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WitnessBeacon contractcourt.WitnessBeacon
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// Invoices is passed to the ChannelLink on creation and handles all
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// invoice-related logic.
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Invoices *invoices.InvoiceRegistry
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// ChannelNotifier is used by the link to notify other sub-systems about
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// channel-related events and by the Brontide to subscribe to
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// ActiveLinkEvents.
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ChannelNotifier *channelnotifier.ChannelNotifier
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// HtlcNotifier is used when creating a ChannelLink.
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HtlcNotifier *htlcswitch.HtlcNotifier
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// TowerClient is used when creating a ChannelLink.
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TowerClient wtclient.Client
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// DisconnectPeer is used to disconnect this peer if the cooperative close
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// process fails.
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DisconnectPeer func(*btcec.PublicKey) error
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// GenNodeAnnouncement is used to send our node announcement to the remote
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// on startup.
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GenNodeAnnouncement func(bool,
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...netann.NodeAnnModifier) (lnwire.NodeAnnouncement, error)
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// PrunePersistentPeerConnection is used to remove all internal state
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// related to this peer in the server.
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PrunePersistentPeerConnection func([33]byte)
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// FetchLastChanUpdate fetches our latest channel update for a target
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// channel.
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FetchLastChanUpdate func(lnwire.ShortChannelID) (*lnwire.ChannelUpdate,
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error)
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// ProcessFundingOpen is used to hand off an OpenChannel message to the
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// funding manager.
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ProcessFundingOpen func(*lnwire.OpenChannel, lnpeer.Peer)
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// ProcessFundingAccept is used to hand off an AcceptChannel message to the
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// funding manager.
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ProcessFundingAccept func(*lnwire.AcceptChannel, lnpeer.Peer)
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// ProcessFundingCreated is used to hand off a FundingCreated message to
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// the funding manager.
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ProcessFundingCreated func(*lnwire.FundingCreated, lnpeer.Peer)
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// ProcessFundingSigned is used to hand off a FundingSigned message to the
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// funding manager.
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ProcessFundingSigned func(*lnwire.FundingSigned, lnpeer.Peer)
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// ProcessFundingLocked is used to hand off a FundingLocked message to the
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// funding manager.
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ProcessFundingLocked func(*lnwire.FundingLocked, lnpeer.Peer)
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// ProcessFundingError is used to hand off an Error message to the funding
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// manager.
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ProcessFundingError func(*lnwire.Error, *btcec.PublicKey)
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// IsPendingChannel is used to determine whether to send an Error message
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// to the funding manager or not.
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IsPendingChannel func([32]byte, *btcec.PublicKey) bool
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// Hodl is used when creating ChannelLinks to specify HodlFlags as
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// breakpoints in dev builds.
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Hodl *hodl.Config
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// UnsafeReplay is used when creating ChannelLinks to specify whether or
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// not to replay adds on its commitment tx.
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UnsafeReplay bool
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// MaxOutgoingCltvExpiry is used when creating ChannelLinks and is the max
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// number of blocks that funds could be locked up for when forwarding
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// payments.
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MaxOutgoingCltvExpiry uint32
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// MaxChannelFeeAllocation is used when creating ChannelLinks and is the
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// maximum percentage of total funds that can be allocated to a channel's
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// commitment fee. This only applies for the initiator of the channel.
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MaxChannelFeeAllocation float64
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// ServerPubKey is the serialized, compressed public key of our lnd node.
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// It is used to determine which policy (channel edge) to pass to the
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// ChannelLink.
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ServerPubKey [33]byte
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// Quit is the server's quit channel. If this is closed, we halt operation.
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Quit chan struct{}
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}
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// Brontide is an active peer on the Lightning Network. This struct is responsible
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// for managing any channel state related to this peer. To do so, it has
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// several helper goroutines to handle events such as HTLC timeouts, new
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@ -693,11 +904,7 @@ func (p *Brontide) String() string {
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// readNextMessage reads, and returns the next message on the wire along with
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// any additional raw payload.
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func (p *Brontide) readNextMessage() (lnwire.Message, error) {
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noiseConn, ok := p.cfg.Conn.(*brontide.Conn)
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if !ok {
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return nil, fmt.Errorf("brontide.Conn required to read messages")
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}
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noiseConn := p.cfg.Conn
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err := noiseConn.SetReadDeadline(time.Time{})
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if err != nil {
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return nil, err
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@ -1516,10 +1723,7 @@ func (p *Brontide) writeMessage(msg lnwire.Message) error {
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p.logWireMessage(msg, false)
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}
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noiseConn, ok := p.cfg.Conn.(*brontide.Conn)
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if !ok {
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return fmt.Errorf("brontide.Conn required to write messages")
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}
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noiseConn := p.cfg.Conn
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flushMsg := func() error {
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// Ensure the write deadline is set before we attempt to send
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231
peer/config.go
231
peer/config.go
@ -1,231 +0,0 @@
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package peer
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import (
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"net"
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"time"
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"github.com/btcsuite/btcd/btcec"
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"github.com/btcsuite/btcd/connmgr"
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"github.com/lightningnetwork/lnd/chainntnfs"
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"github.com/lightningnetwork/lnd/channeldb"
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"github.com/lightningnetwork/lnd/channelnotifier"
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"github.com/lightningnetwork/lnd/contractcourt"
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"github.com/lightningnetwork/lnd/discovery"
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"github.com/lightningnetwork/lnd/htlcswitch"
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"github.com/lightningnetwork/lnd/htlcswitch/hodl"
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"github.com/lightningnetwork/lnd/htlcswitch/hop"
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"github.com/lightningnetwork/lnd/input"
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"github.com/lightningnetwork/lnd/invoices"
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"github.com/lightningnetwork/lnd/lnpeer"
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"github.com/lightningnetwork/lnd/lnwallet"
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"github.com/lightningnetwork/lnd/lnwallet/chainfee"
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"github.com/lightningnetwork/lnd/lnwire"
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"github.com/lightningnetwork/lnd/netann"
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"github.com/lightningnetwork/lnd/pool"
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"github.com/lightningnetwork/lnd/queue"
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"github.com/lightningnetwork/lnd/watchtower/wtclient"
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)
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// Config defines configuration fields that are necessary for a peer object
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// to function.
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type Config struct {
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// Conn is the underlying network connection for this peer.
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Conn net.Conn
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// ConnReq stores information related to the persistent connection request
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// for this peer.
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ConnReq *connmgr.ConnReq
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// PubKeyBytes is the serialized, compressed public key of this peer.
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PubKeyBytes [33]byte
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// Addr is the network address of the peer.
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Addr *lnwire.NetAddress
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// Inbound indicates whether or not the peer is an inbound peer.
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Inbound bool
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// Features is the set of features that we advertise to the remote party.
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Features *lnwire.FeatureVector
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// LegacyFeatures is the set of features that we advertise to the remote
|
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// peer for backwards compatibility. Nodes that have not implemented
|
||||
// flat features will still be able to read our feature bits from the
|
||||
// legacy global field, but we will also advertise everything in the
|
||||
// default features field.
|
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LegacyFeatures *lnwire.FeatureVector
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// OutgoingCltvRejectDelta defines the number of blocks before expiry of
|
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// an htlc where we don't offer it anymore.
|
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OutgoingCltvRejectDelta uint32
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|
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// ChanActiveTimeout specifies the duration the peer will wait to request
|
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// a channel reenable, beginning from the time the peer was started.
|
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ChanActiveTimeout time.Duration
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|
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// ErrorBuffer stores a set of errors related to a peer. It contains error
|
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// messages that our peer has recently sent us over the wire and records of
|
||||
// unknown messages that were sent to us so that we can have a full track
|
||||
// record of the communication errors we have had with our peer. If we
|
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// choose to disconnect from a peer, it also stores the reason we had for
|
||||
// disconnecting.
|
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ErrorBuffer *queue.CircularBuffer
|
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|
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// WritePool is the task pool that manages reuse of write buffers. Write
|
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// tasks are submitted to the pool in order to conserve the total number of
|
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// write buffers allocated at any one time, and decouple write buffer
|
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// allocation from the peer life cycle.
|
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WritePool *pool.Write
|
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|
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// ReadPool is the task pool that manages reuse of read buffers.
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ReadPool *pool.Read
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|
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// Switch is a pointer to the htlcswitch. It is used to setup, get, and
|
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// tear-down ChannelLinks.
|
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Switch *htlcswitch.Switch
|
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|
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// InterceptSwitch is a pointer to the InterceptableSwitch, a wrapper around
|
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// the regular Switch. We only export it here to pass ForwardPackets to the
|
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// ChannelLinkConfig.
|
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InterceptSwitch *htlcswitch.InterceptableSwitch
|
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|
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// ChannelDB is used to fetch opened channels, and closed channels.
|
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ChannelDB *channeldb.DB
|
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|
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// ChannelGraph is a pointer to the channel graph which is used to
|
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// query information about the set of known active channels.
|
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ChannelGraph *channeldb.ChannelGraph
|
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|
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// ChainArb is used to subscribe to channel events, update contract signals,
|
||||
// and force close channels.
|
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ChainArb *contractcourt.ChainArbitrator
|
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|
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// AuthGossiper is needed so that the Brontide impl can register with the
|
||||
// gossiper and process remote channel announcements.
|
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AuthGossiper *discovery.AuthenticatedGossiper
|
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|
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// ChanStatusMgr is used to set or un-set the disabled bit in channel
|
||||
// updates.
|
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ChanStatusMgr *netann.ChanStatusManager
|
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|
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// ChainIO is used to retrieve the best block.
|
||||
ChainIO lnwallet.BlockChainIO
|
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|
||||
// FeeEstimator is used to compute our target ideal fee-per-kw when
|
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// initializing the coop close process.
|
||||
FeeEstimator chainfee.Estimator
|
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|
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// Signer is used when creating *lnwallet.LightningChannel instances.
|
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Signer input.Signer
|
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|
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// SigPool is used when creating *lnwallet.LightningChannel instances.
|
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SigPool *lnwallet.SigPool
|
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|
||||
// Wallet is used to publish transactions and generate delivery scripts
|
||||
// during the coop close process.
|
||||
Wallet *lnwallet.LightningWallet
|
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|
||||
// ChainNotifier is used to receive confirmations of a coop close
|
||||
// transaction.
|
||||
ChainNotifier chainntnfs.ChainNotifier
|
||||
|
||||
// RoutingPolicy is used to set the forwarding policy for links created by
|
||||
// the Brontide.
|
||||
RoutingPolicy htlcswitch.ForwardingPolicy
|
||||
|
||||
// Sphinx is used when setting up ChannelLinks so they can decode sphinx
|
||||
// onion blobs.
|
||||
Sphinx *hop.OnionProcessor
|
||||
|
||||
// WitnessBeacon is used when setting up ChannelLinks so they can add any
|
||||
// preimages that they learn.
|
||||
WitnessBeacon contractcourt.WitnessBeacon
|
||||
|
||||
// Invoices is passed to the ChannelLink on creation and handles all
|
||||
// invoice-related logic.
|
||||
Invoices *invoices.InvoiceRegistry
|
||||
|
||||
// ChannelNotifier is used by the link to notify other sub-systems about
|
||||
// channel-related events and by the Brontide to subscribe to
|
||||
// ActiveLinkEvents.
|
||||
ChannelNotifier *channelnotifier.ChannelNotifier
|
||||
|
||||
// HtlcNotifier is used when creating a ChannelLink.
|
||||
HtlcNotifier *htlcswitch.HtlcNotifier
|
||||
|
||||
// TowerClient is used when creating a ChannelLink.
|
||||
TowerClient wtclient.Client
|
||||
|
||||
// DisconnectPeer is used to disconnect this peer if the cooperative close
|
||||
// process fails.
|
||||
DisconnectPeer func(*btcec.PublicKey) error
|
||||
|
||||
// GenNodeAnnouncement is used to send our node announcement to the remote
|
||||
// on startup.
|
||||
GenNodeAnnouncement func(bool,
|
||||
...netann.NodeAnnModifier) (lnwire.NodeAnnouncement, error)
|
||||
|
||||
// PrunePersistentPeerConnection is used to remove all internal state
|
||||
// related to this peer in the server.
|
||||
PrunePersistentPeerConnection func([33]byte)
|
||||
|
||||
// FetchLastChanUpdate fetches our latest channel update for a target
|
||||
// channel.
|
||||
FetchLastChanUpdate func(lnwire.ShortChannelID) (*lnwire.ChannelUpdate,
|
||||
error)
|
||||
|
||||
// ProcessFundingOpen is used to hand off an OpenChannel message to the
|
||||
// funding manager.
|
||||
ProcessFundingOpen func(*lnwire.OpenChannel, lnpeer.Peer)
|
||||
|
||||
// ProcessFundingAccept is used to hand off an AcceptChannel message to the
|
||||
// funding manager.
|
||||
ProcessFundingAccept func(*lnwire.AcceptChannel, lnpeer.Peer)
|
||||
|
||||
// ProcessFundingCreated is used to hand off a FundingCreated message to
|
||||
// the funding manager.
|
||||
ProcessFundingCreated func(*lnwire.FundingCreated, lnpeer.Peer)
|
||||
|
||||
// ProcessFundingSigned is used to hand off a FundingSigned message to the
|
||||
// funding manager.
|
||||
ProcessFundingSigned func(*lnwire.FundingSigned, lnpeer.Peer)
|
||||
|
||||
// ProcessFundingLocked is used to hand off a FundingLocked message to the
|
||||
// funding manager.
|
||||
ProcessFundingLocked func(*lnwire.FundingLocked, lnpeer.Peer)
|
||||
|
||||
// ProcessFundingError is used to hand off an Error message to the funding
|
||||
// manager.
|
||||
ProcessFundingError func(*lnwire.Error, *btcec.PublicKey)
|
||||
|
||||
// IsPendingChannel is used to determine whether to send an Error message
|
||||
// to the funding manager or not.
|
||||
IsPendingChannel func([32]byte, *btcec.PublicKey) bool
|
||||
|
||||
// Hodl is used when creating ChannelLinks to specify HodlFlags as
|
||||
// breakpoints in dev builds.
|
||||
Hodl *hodl.Config
|
||||
|
||||
// UnsafeReplay is used when creating ChannelLinks to specify whether or
|
||||
// not to replay adds on its commitment tx.
|
||||
UnsafeReplay bool
|
||||
|
||||
// MaxOutgoingCltvExpiry is used when creating ChannelLinks and is the max
|
||||
// number of blocks that funds could be locked up for when forwarding
|
||||
// payments.
|
||||
MaxOutgoingCltvExpiry uint32
|
||||
|
||||
// MaxChannelFeeAllocation is used when creating ChannelLinks and is the
|
||||
// maximum percentage of total funds that can be allocated to a channel's
|
||||
// commitment fee. This only applies for the initiator of the channel.
|
||||
MaxChannelFeeAllocation float64
|
||||
|
||||
// ServerPubKey is the serialized, compressed public key of our lnd node.
|
||||
// It is used to determine which policy (channel edge) to pass to the
|
||||
// ChannelLink.
|
||||
ServerPubKey [33]byte
|
||||
|
||||
// Quit is the server's quit channel. If this is closed, we halt operation.
|
||||
Quit chan struct{}
|
||||
}
|
||||
@ -1,6 +1,11 @@
|
||||
package peer
|
||||
|
||||
import "github.com/lightningnetwork/lnd/lnwire"
|
||||
import (
|
||||
"net"
|
||||
"time"
|
||||
|
||||
"github.com/lightningnetwork/lnd/lnwire"
|
||||
)
|
||||
|
||||
// LinkUpdater is an interface implemented by most messages in BOLT 2 that are
|
||||
// allowed to update the channel state.
|
||||
@ -9,3 +14,43 @@ type LinkUpdater interface {
|
||||
// is intended.
|
||||
TargetChanID() lnwire.ChannelID
|
||||
}
|
||||
|
||||
// MessageConn is an interface implemented by anything that delivers
|
||||
// an lnwire.Message using a net.Conn interface.
|
||||
type MessageConn interface {
|
||||
// RemoteAddr returns the remote address on the other end of the connection.
|
||||
RemoteAddr() net.Addr
|
||||
|
||||
// LocalAddr returns the local address on our end of the connection.
|
||||
LocalAddr() net.Addr
|
||||
|
||||
// Read reads bytes from the connection.
|
||||
Read([]byte) (int, error)
|
||||
|
||||
// Write writes bytes to the connection.
|
||||
Write([]byte) (int, error)
|
||||
|
||||
// SetDeadline sets the deadline for the connection.
|
||||
SetDeadline(time.Time) error
|
||||
|
||||
// SetReadDeadline sets the read deadline.
|
||||
SetReadDeadline(time.Time) error
|
||||
|
||||
// SetWriteDeadline sets the write deadline.
|
||||
SetWriteDeadline(time.Time) error
|
||||
|
||||
// Close closes the connection.
|
||||
Close() error
|
||||
|
||||
// Flush attempts a flush.
|
||||
Flush() (int, error)
|
||||
|
||||
// WriteMessage writes the message.
|
||||
WriteMessage([]byte) error
|
||||
|
||||
// ReadNextHeader reads the next header.
|
||||
ReadNextHeader() (uint32, error)
|
||||
|
||||
// ReadNextBody reads the next body.
|
||||
ReadNextBody([]byte) ([]byte, error)
|
||||
}
|
||||
|
||||
@ -2946,7 +2946,7 @@ func (s *server) peerConnected(conn net.Conn, connReq *connmgr.ConnReq,
|
||||
// htlcs, an extra block is added to prevent the channel from being
|
||||
// closed when the htlc is outstanding and a new block comes in.
|
||||
pCfg := peer.Config{
|
||||
Conn: conn,
|
||||
Conn: brontideConn,
|
||||
ConnReq: connReq,
|
||||
Addr: peerAddr,
|
||||
Inbound: inbound,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user