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manager: also store initial time lock delta and HTLC settings

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This will allow us to also set the TimeLockDelta and HTLC settings
when creating the channel. We leave the actual implementation of
the RPC and CLI changes to another PR, this is just to make
things more consistent.
This commit is contained in:
Oliver Gugger 2023-07-17 12:53:19 +02:00
parent 5b9aa63cec
commit 4770cb0aaf
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GPG Key ID: 8E4256593F177720
1 changed files with 21 additions and 11 deletions
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32
funding/manager.go
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@ -1750,7 +1750,10 @@ func (f *Manager) handleFundingOpen(peer lnpeer.Peer,
// If we are handling a FundingOpen request then we need to specify the
// default channel fees since they are not provided by the responder
// interactively.
forwardingPolicy := f.defaultForwardingPolicy()
ourContribution := reservation.OurContribution()
forwardingPolicy := f.defaultForwardingPolicy(
ourContribution.ChannelConstraints,
)
// Once the reservation has been created successfully, we add it to
// this peer's map of pending reservations to track this particular
@ -1825,7 +1828,6 @@ func (f *Manager) handleFundingOpen(peer lnpeer.Peer,
// With the initiator's contribution recorded, respond with our
// contribution in the next message of the workflow.
ourContribution := reservation.OurContribution()
fundingAccept := lnwire.AcceptChannel{
PendingChannelID: msg.PendingChannelID,
DustLimit: ourContribution.DustLimit,
@ -4279,10 +4281,16 @@ func (f *Manager) handleInitFundingMsg(msg *InitFundingMsg) {
maxHtlcs = f.cfg.RequiredRemoteMaxHTLCs(capacity)
}
// Once the reservation has been created, and indexed, queue a funding
// request to the remote peer, kicking off the funding workflow.
ourContribution := reservation.OurContribution()
// Prepare the optional channel fee values from the initFundingMsg. If
// useBaseFee or useFeeRate are false the client did not provide fee
// values hence we assume default fee settings from the config.
forwardingPolicy := f.defaultForwardingPolicy()
forwardingPolicy := f.defaultForwardingPolicy(
ourContribution.ChannelConstraints,
)
if baseFee != nil {
forwardingPolicy.BaseFee = lnwire.MilliSatoshi(*baseFee)
}
@ -4291,10 +4299,6 @@ func (f *Manager) handleInitFundingMsg(msg *InitFundingMsg) {
forwardingPolicy.FeeRate = lnwire.MilliSatoshi(*feeRate)
}
// Once the reservation has been created, and indexed, queue a funding
// request to the remote peer, kicking off the funding workflow.
ourContribution := reservation.OurContribution()
// Fetch our dust limit which is part of the default channel
// constraints, and log it.
ourDustLimit := ourContribution.DustLimit
@ -4614,11 +4618,17 @@ func copyPubKey(pub *btcec.PublicKey) *btcec.PublicKey {
return btcec.NewPublicKey(&tmp.X, &tmp.Y)
}
// defaultForwardingPolicy returns the default forwarding policy.
func (f *Manager) defaultForwardingPolicy() *htlcswitch.ForwardingPolicy {
// defaultForwardingPolicy returns the default forwarding policy based on the
// default routing policy and our local channel constraints.
func (f *Manager) defaultForwardingPolicy(
constraints channeldb.ChannelConstraints) *htlcswitch.ForwardingPolicy {
return &htlcswitch.ForwardingPolicy{
BaseFee: f.cfg.DefaultRoutingPolicy.BaseFee,
FeeRate: f.cfg.DefaultRoutingPolicy.FeeRate,
MinHTLCOut: constraints.MinHTLC,
MaxHTLC: constraints.MaxPendingAmount,
BaseFee: f.cfg.DefaultRoutingPolicy.BaseFee,
FeeRate: f.cfg.DefaultRoutingPolicy.FeeRate,
TimeLockDelta: f.cfg.DefaultRoutingPolicy.TimeLockDelta,
}
}