Merge pull request #4018 from breez/intercept-forward-htlc
Intercept forward htlc
This commit is contained in:
Joost Jager
GitHub
commit
8f2a2fc5da
170
htlcswitch/interceptable_switch.go
Normal file
170
htlcswitch/interceptable_switch.go
Normal file
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@ -0,0 +1,170 @@
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package htlcswitch
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import (
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"fmt"
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"sync"
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"github.com/go-errors/errors"
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"github.com/lightningnetwork/lnd/channeldb"
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"github.com/lightningnetwork/lnd/htlcswitch/hop"
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"github.com/lightningnetwork/lnd/lntypes"
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"github.com/lightningnetwork/lnd/lnwire"
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)
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var (
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// ErrFwdNotExists is an error returned when the caller tries to resolve
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// a forward that doesn't exist anymore.
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ErrFwdNotExists = errors.New("forward does not exist")
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)
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// InterceptableSwitch is an implementation of ForwardingSwitch interface.
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// This implementation is used like a proxy that wraps the switch and
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// intercepts forward requests. A reference to the Switch is held in order
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// to communicate back the interception result where the options are:
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// Resume - forwards the original request to the switch as is.
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// Settle - routes UpdateFulfillHTLC to the originating link.
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// Fail - routes UpdateFailHTLC to the originating link.
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type InterceptableSwitch struct {
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sync.RWMutex
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// htlcSwitch is the underline switch
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htlcSwitch *Switch
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// fwdInterceptor is the callback that is called for each forward of
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// an incoming htlc. It should return true if it is interested in handling
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// it.
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fwdInterceptor ForwardInterceptor
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}
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// NewInterceptableSwitch returns an instance of InterceptableSwitch.
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func NewInterceptableSwitch(s *Switch) *InterceptableSwitch {
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return &InterceptableSwitch{htlcSwitch: s}
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}
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// SetInterceptor sets the ForwardInterceptor to be used.
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func (s *InterceptableSwitch) SetInterceptor(
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interceptor ForwardInterceptor) {
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s.Lock()
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defer s.Unlock()
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s.fwdInterceptor = interceptor
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}
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// ForwardPackets attempts to forward the batch of htlcs through the
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// switch, any failed packets will be returned to the provided
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// ChannelLink. The link's quit signal should be provided to allow
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// cancellation of forwarding during link shutdown.
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func (s *InterceptableSwitch) ForwardPackets(linkQuit chan struct{},
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packets ...*htlcPacket) error {
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var interceptor ForwardInterceptor
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s.Lock()
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interceptor = s.fwdInterceptor
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s.Unlock()
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// Optimize for the case we don't have an interceptor.
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if interceptor == nil {
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return s.htlcSwitch.ForwardPackets(linkQuit, packets...)
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}
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var notIntercepted []*htlcPacket
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for _, p := range packets {
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if !s.interceptForward(p, interceptor, linkQuit) {
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notIntercepted = append(notIntercepted, p)
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}
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}
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return s.htlcSwitch.ForwardPackets(linkQuit, notIntercepted...)
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}
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// interceptForward checks if there is any external interceptor interested in
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// this packet. Currently only htlc type of UpdateAddHTLC that are forwarded
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// are being checked for interception. It can be extended in the future given
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// the right use case.
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func (s *InterceptableSwitch) interceptForward(packet *htlcPacket,
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interceptor ForwardInterceptor, linkQuit chan struct{}) bool {
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switch htlc := packet.htlc.(type) {
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case *lnwire.UpdateAddHTLC:
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// We are not interested in intercepting initated payments.
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if packet.incomingChanID == hop.Source {
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return false
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}
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intercepted := &interceptedForward{
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linkQuit: linkQuit,
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htlc: htlc,
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packet: packet,
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htlcSwitch: s.htlcSwitch,
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}
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// If this htlc was intercepted, don't handle the forward.
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return interceptor(intercepted)
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default:
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return false
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}
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}
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// interceptedForward implements the InterceptedForward interface.
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// It is passed from the switch to external interceptors that are interested
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// in holding forwards and resolve them manually.
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type interceptedForward struct {
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linkQuit chan struct{}
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htlc *lnwire.UpdateAddHTLC
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packet *htlcPacket
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htlcSwitch *Switch
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}
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// Packet returns the intercepted htlc packet.
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func (f *interceptedForward) Packet() lnwire.UpdateAddHTLC {
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return *f.htlc
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}
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// CircuitKey returns the circuit key for the intercepted htlc.
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func (f *interceptedForward) CircuitKey() channeldb.CircuitKey {
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return channeldb.CircuitKey{
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ChanID: f.packet.incomingChanID,
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HtlcID: f.packet.incomingHTLCID,
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}
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}
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// Resume resumes the default behavior as if the packet was not intercepted.
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func (f *interceptedForward) Resume() error {
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return f.htlcSwitch.ForwardPackets(f.linkQuit, f.packet)
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}
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// Fail forward a failed packet to the switch.
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func (f *interceptedForward) Fail() error {
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reason, err := f.packet.obfuscator.EncryptFirstHop(lnwire.NewTemporaryChannelFailure(nil))
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if err != nil {
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return fmt.Errorf("failed to encrypt failure reason %v", err)
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}
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return f.resolve(&lnwire.UpdateFailHTLC{
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Reason: reason,
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})
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}
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// Settle forwards a settled packet to the switch.
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func (f *interceptedForward) Settle(preimage lntypes.Preimage) error {
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if !preimage.Matches(f.htlc.PaymentHash) {
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return errors.New("preimage does not match hash")
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}
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return f.resolve(&lnwire.UpdateFulfillHTLC{
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PaymentPreimage: preimage,
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})
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}
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// resolve is used for both Settle and Fail and forwards the message to the
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// switch.
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func (f *interceptedForward) resolve(message lnwire.Message) error {
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pkt := &htlcPacket{
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incomingChanID: f.packet.incomingChanID,
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incomingHTLCID: f.packet.incomingHTLCID,
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outgoingChanID: f.packet.outgoingChanID,
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outgoingHTLCID: f.packet.outgoingHTLCID,
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isResolution: true,
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circuit: f.packet.circuit,
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htlc: message,
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obfuscator: f.packet.obfuscator,
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}
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return f.htlcSwitch.mailOrchestrator.Deliver(pkt.incomingChanID, pkt)
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}
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@ -185,6 +185,46 @@ type TowerClient interface {
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BackupState(*lnwire.ChannelID, *lnwallet.BreachRetribution, bool) error
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}
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// InterceptableHtlcForwarder is the interface to set the interceptor
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// implementation that intercepts htlc forwards.
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type InterceptableHtlcForwarder interface {
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// SetInterceptor sets a ForwardInterceptor.
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SetInterceptor(interceptor ForwardInterceptor)
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}
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// ForwardInterceptor is a function that is invoked from the switch for every
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// incoming htlc that is intended to be forwarded. It is passed with the
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// InterceptedForward that contains the information about the packet and a way
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// to resolve it manually later in case it is held.
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// The return value indicates if this handler will take control of this forward
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// and resolve it later or let the switch execute its default behavior.
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type ForwardInterceptor func(InterceptedForward) bool
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// InterceptedForward is passed to the ForwardInterceptor for every forwarded
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// htlc. It contains all the information about the packet which accordingly
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// the interceptor decides if to hold or not.
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// In addition this interface allows a later resolution by calling either
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// Resume, Settle or Fail.
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type InterceptedForward interface {
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// CircuitKey returns the intercepted packet.
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CircuitKey() channeldb.CircuitKey
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// Packet returns the intercepted packet.
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Packet() lnwire.UpdateAddHTLC
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// Resume notifies the intention to resume an existing hold forward. This
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// basically means the caller wants to resume with the default behavior for
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// this htlc which usually means forward it.
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Resume() error
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// Settle notifies the intention to settle an existing hold
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// forward with a given preimage.
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Settle(lntypes.Preimage) error
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// Fails notifies the intention to fail an existing hold forward
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Fail() error
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}
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// htlcNotifier is an interface which represents the input side of the
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// HtlcNotifier which htlc events are piped through. This interface is intended
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// to allow for mocking of the htlcNotifier in tests, so is unexported because
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@ -135,10 +135,10 @@ type ChannelLinkConfig struct {
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Switch *Switch
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// ForwardPackets attempts to forward the batch of htlcs through the
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// switch, any failed packets will be returned to the provided
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// ChannelLink. The link's quit signal should be provided to allow
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// switch. The function returns and error in case it fails to send one or
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// more packets. The link's quit signal should be provided to allow
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// cancellation of forwarding during link shutdown.
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ForwardPackets func(chan struct{}, ...*htlcPacket) chan error
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ForwardPackets func(chan struct{}, ...*htlcPacket) error
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// DecodeHopIterators facilitates batched decoding of HTLC Sphinx onion
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// blobs, which are then used to inform how to forward an HTLC.
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@ -2971,8 +2971,10 @@ func (l *channelLink) forwardBatch(packets ...*htlcPacket) {
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filteredPkts = append(filteredPkts, pkt)
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}
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errChan := l.cfg.ForwardPackets(l.quit, filteredPkts...)
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go handleBatchFwdErrs(errChan, l.log)
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if err := l.cfg.ForwardPackets(l.quit, filteredPkts...); err != nil {
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log.Errorf("Unhandled error while reforwarding htlc "+
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"settle/fail over htlcswitch: %v", err)
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}
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}
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// sendHTLCError functions cancels HTLC and send cancel message back to the
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@ -86,7 +86,7 @@ type mailBoxConfig struct {
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// forwardPackets send a varidic number of htlcPackets to the switch to
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// be routed. A quit channel should be provided so that the call can
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// properly exit during shutdown.
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forwardPackets func(chan struct{}, ...*htlcPacket) chan error
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forwardPackets func(chan struct{}, ...*htlcPacket) error
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// clock is a time source for the mailbox.
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clock clock.Clock
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@ -680,8 +680,10 @@ func (m *memoryMailBox) FailAdd(pkt *htlcPacket) {
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},
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}
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errChan := m.cfg.forwardPackets(m.quit, failPkt)
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go handleBatchFwdErrs(errChan, log)
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if err := m.cfg.forwardPackets(m.quit, failPkt); err != nil {
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log.Errorf("Unhandled error while reforwarding packets "+
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"settle/fail over htlcswitch: %v", err)
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}
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}
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// MessageOutBox returns a channel that any new messages ready for delivery
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@ -734,7 +736,7 @@ type mailOrchConfig struct {
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// forwardPackets send a varidic number of htlcPackets to the switch to
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// be routed. A quit channel should be provided so that the call can
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// properly exit during shutdown.
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forwardPackets func(chan struct{}, ...*htlcPacket) chan error
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forwardPackets func(chan struct{}, ...*htlcPacket) error
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// fetchUpdate retreives the most recent channel update for the channel
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// this mailbox belongs to.
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@ -218,16 +218,13 @@ func newMailboxContext(t *testing.T, startTime time.Time,
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}
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func (c *mailboxContext) forward(_ chan struct{},
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pkts ...*htlcPacket) chan error {
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pkts ...*htlcPacket) error {
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for _, pkt := range pkts {
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c.forwards <- pkt
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}
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errChan := make(chan error)
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close(errChan)
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return errChan
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return nil
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}
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func (c *mailboxContext) sendAdds(start, num int) []*htlcPacket {
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@ -555,12 +552,8 @@ func TestMailOrchestrator(t *testing.T) {
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}, nil
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},
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forwardPackets: func(_ chan struct{},
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pkts ...*htlcPacket) chan error {
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// Close the channel immediately so the goroutine
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// logging errors can exit.
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errChan := make(chan error)
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close(errChan)
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return errChan
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pkts ...*htlcPacket) error {
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return nil
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},
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clock: clock.NewTestClock(time.Now()),
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expiry: testExpiry,
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@ -9,7 +9,6 @@ import (
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"time"
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"github.com/btcsuite/btcd/wire"
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"github.com/btcsuite/btclog"
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"github.com/btcsuite/btcutil"
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"github.com/davecgh/go-spew/spew"
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"github.com/lightningnetwork/lnd/chainntnfs"
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@ -548,24 +547,14 @@ func (s *Switch) IsForwardedHTLC(chanID lnwire.ShortChannelID,
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// given to forward them through the router. The sending link's quit channel is
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// used to prevent deadlocks when the switch stops a link in the midst of
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// forwarding.
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//
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// NOTE: This method guarantees that the returned err chan will eventually be
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// closed. The receiver should read on the channel until receiving such a
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// signal.
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func (s *Switch) ForwardPackets(linkQuit chan struct{},
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packets ...*htlcPacket) chan error {
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packets ...*htlcPacket) error {
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var (
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// fwdChan is a buffered channel used to receive err msgs from
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// the htlcPlex when forwarding this batch.
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fwdChan = make(chan error, len(packets))
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// errChan is a buffered channel returned to the caller, that is
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// proxied by the fwdChan. This method guarantees that errChan
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// will be closed eventually to alert the receiver that it can
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// stop reading from the channel.
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errChan = make(chan error, len(packets))
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// numSent keeps a running count of how many packets are
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// forwarded to the switch, which determines how many responses
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// we will wait for on the fwdChan..
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@ -574,8 +563,7 @@ func (s *Switch) ForwardPackets(linkQuit chan struct{},
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// No packets, nothing to do.
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if len(packets) == 0 {
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close(errChan)
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return errChan
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return nil
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}
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// Setup a barrier to prevent the background tasks from processing
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@ -590,18 +578,13 @@ func (s *Switch) ForwardPackets(linkQuit chan struct{},
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// it is already in the process of shutting down.
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select {
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case <-linkQuit:
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close(errChan)
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return errChan
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return nil
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case <-s.quit:
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close(errChan)
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return errChan
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return nil
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default:
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// Spawn a goroutine the proxy the errs back to the returned err
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// chan. This is done to ensure the err chan returned to the
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// caller closed properly, alerting the receiver of completion
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// or shutdown.
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// Spawn a goroutine to log the errors returned from failed packets.
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s.wg.Add(1)
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go s.proxyFwdErrs(&numSent, &wg, fwdChan, errChan)
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go s.logFwdErrs(&numSent, &wg, fwdChan)
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}
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// Make a first pass over the packets, forwarding any settles or fails.
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@ -619,7 +602,7 @@ func (s *Switch) ForwardPackets(linkQuit chan struct{},
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default:
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err := s.routeAsync(packet, fwdChan, linkQuit)
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if err != nil {
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return errChan
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return fmt.Errorf("failed to forward packet %v", err)
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}
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numSent++
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}
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@ -628,7 +611,7 @@ func (s *Switch) ForwardPackets(linkQuit chan struct{},
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// If this batch did not contain any circuits to commit, we can return
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// early.
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if len(circuits) == 0 {
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return errChan
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return nil
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}
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// Write any circuits that we found to disk.
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@ -664,7 +647,7 @@ func (s *Switch) ForwardPackets(linkQuit chan struct{},
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for _, packet := range addedPackets {
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err := s.routeAsync(packet, fwdChan, linkQuit)
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if err != nil {
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return errChan
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return fmt.Errorf("failed to forward packet %v", err)
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}
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numSent++
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}
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@ -693,21 +676,12 @@ func (s *Switch) ForwardPackets(linkQuit chan struct{},
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}
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}
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return errChan
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return nil
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}
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// proxyFwdErrs transmits any errors received on `fwdChan` back to `errChan`,
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// and guarantees that the `errChan` will be closed after 1) all errors have
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// been sent, or 2) the switch has received a shutdown. The `errChan` should be
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// buffered with at least the value of `num` after the barrier has been
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// released.
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//
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// NOTE: The receiver of `errChan` should read until the channel closed, since
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// this proxying guarantees that the close will happen.
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func (s *Switch) proxyFwdErrs(num *int, wg *sync.WaitGroup,
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fwdChan, errChan chan error) {
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// logFwdErrs logs any errors received on `fwdChan`
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func (s *Switch) logFwdErrs(num *int, wg *sync.WaitGroup, fwdChan chan error) {
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defer s.wg.Done()
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defer close(errChan)
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// Wait here until the outer function has finished persisting
|
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// and routing the packets. This guarantees we don't read from num until
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@ -718,7 +692,10 @@ func (s *Switch) proxyFwdErrs(num *int, wg *sync.WaitGroup,
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for i := 0; i < numSent; i++ {
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select {
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case err := <-fwdChan:
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errChan <- err
|
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if err != nil {
|
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log.Errorf("Unhandled error while reforwarding htlc "+
|
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"settle/fail over htlcswitch: %v", err)
|
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}
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case <-s.quit:
|
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log.Errorf("unable to forward htlc packet " +
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"htlc switch was stopped")
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@ -1925,28 +1902,10 @@ func (s *Switch) reforwardSettleFails(fwdPkgs []*channeldb.FwdPkg) {
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// Since this send isn't tied to a specific link, we pass a nil
|
||||
// link quit channel, meaning the send will fail only if the
|
||||
// switch receives a shutdown request.
|
||||
errChan := s.ForwardPackets(nil, switchPackets...)
|
||||
go handleBatchFwdErrs(errChan, log)
|
||||
}
|
||||
}
|
||||
|
||||
// handleBatchFwdErrs waits on the given errChan until it is closed, logging the
|
||||
// errors returned from any unsuccessful forwarding attempts.
|
||||
func handleBatchFwdErrs(errChan chan error, l btclog.Logger) {
|
||||
for {
|
||||
err, ok := <-errChan
|
||||
if !ok {
|
||||
// Err chan has been drained or switch is shutting down.
|
||||
// Either way, return.
|
||||
return
|
||||
if err := s.ForwardPackets(nil, switchPackets...); err != nil {
|
||||
log.Errorf("Unhandled error while reforwarding packets "+
|
||||
"settle/fail over htlcswitch: %v", err)
|
||||
}
|
||||
|
||||
if err == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
l.Errorf("Unhandled error while reforwarding htlc "+
|
||||
"settle/fail over htlcswitch: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -11,6 +11,7 @@ import (
|
|||
"time"
|
||||
|
||||
"github.com/btcsuite/btcutil"
|
||||
"github.com/btcsuite/fastsha256"
|
||||
"github.com/davecgh/go-spew/spew"
|
||||
"github.com/lightningnetwork/lnd/channeldb"
|
||||
"github.com/lightningnetwork/lnd/htlcswitch/hop"
|
||||
|
|
@ -172,6 +173,13 @@ func TestSwitchSendPending(t *testing.T) {
|
|||
t.Fatalf("unable to create alice server: %v", err)
|
||||
}
|
||||
|
||||
bobPeer, err := newMockServer(
|
||||
t, "bob", testStartingHeight, nil, testDefaultDelta,
|
||||
)
|
||||
if err != nil {
|
||||
t.Fatalf("unable to create bob server: %v", err)
|
||||
}
|
||||
|
||||
s, err := initSwitchWithDB(testStartingHeight, nil)
|
||||
if err != nil {
|
||||
t.Fatalf("unable to init switch: %v", err)
|
||||
|
|
@ -181,7 +189,7 @@ func TestSwitchSendPending(t *testing.T) {
|
|||
}
|
||||
defer s.Stop()
|
||||
|
||||
chanID1, _, aliceChanID, bobChanID := genIDs()
|
||||
chanID1, chanID2, aliceChanID, bobChanID := genIDs()
|
||||
|
||||
pendingChanID := lnwire.ShortChannelID{}
|
||||
|
||||
|
|
@ -192,6 +200,13 @@ func TestSwitchSendPending(t *testing.T) {
|
|||
t.Fatalf("unable to add alice link: %v", err)
|
||||
}
|
||||
|
||||
bobChannelLink := newMockChannelLink(
|
||||
s, chanID2, bobChanID, bobPeer, true,
|
||||
)
|
||||
if err := s.AddLink(bobChannelLink); err != nil {
|
||||
t.Fatalf("unable to add bob link: %v", err)
|
||||
}
|
||||
|
||||
// Create request which should is being forwarded from Bob channel
|
||||
// link to Alice channel link.
|
||||
preimage, err := genPreimage()
|
||||
|
|
@ -212,7 +227,17 @@ func TestSwitchSendPending(t *testing.T) {
|
|||
|
||||
// Send the ADD packet, this should not be forwarded out to the link
|
||||
// since there are no eligible links.
|
||||
err = forwardPackets(t, s, packet)
|
||||
if err = s.ForwardPackets(nil, packet); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
select {
|
||||
case p := <-bobChannelLink.packets:
|
||||
if p.linkFailure != nil {
|
||||
err = p.linkFailure
|
||||
}
|
||||
case <-time.After(time.Second):
|
||||
t.Fatal("no timely reply from switch")
|
||||
}
|
||||
linkErr, ok := err.(*LinkError)
|
||||
if !ok {
|
||||
t.Fatalf("expected link error, got: %T", err)
|
||||
|
|
@ -248,7 +273,7 @@ func TestSwitchSendPending(t *testing.T) {
|
|||
packet.incomingHTLCID++
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, packet); err != nil {
|
||||
if err := s.ForwardPackets(nil, packet); err != nil {
|
||||
t.Fatalf("unexpected forward failure: %v", err)
|
||||
}
|
||||
|
||||
|
|
@ -321,7 +346,7 @@ func TestSwitchForward(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, packet); err != nil {
|
||||
if err := s.ForwardPackets(nil, packet); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -355,7 +380,7 @@ func TestSwitchForward(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that payment circuit works properly.
|
||||
if err := forwardPackets(t, s, packet); err != nil {
|
||||
if err := s.ForwardPackets(nil, packet); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -450,7 +475,7 @@ func TestSwitchForwardFailAfterFullAdd(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, ogPacket); err != nil {
|
||||
if err := s.ForwardPackets(nil, ogPacket); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -538,7 +563,7 @@ func TestSwitchForwardFailAfterFullAdd(t *testing.T) {
|
|||
}
|
||||
|
||||
// Send the fail packet from the remote peer through the switch.
|
||||
if err := <-s2.ForwardPackets(nil, fail); err != nil {
|
||||
if err := s2.ForwardPackets(nil, fail); err != nil {
|
||||
t.Fatalf(err.Error())
|
||||
}
|
||||
|
||||
|
|
@ -562,9 +587,13 @@ func TestSwitchForwardFailAfterFullAdd(t *testing.T) {
|
|||
}
|
||||
|
||||
// Send the fail packet from the remote peer through the switch.
|
||||
if err := <-s2.ForwardPackets(nil, fail); err == nil {
|
||||
t.Fatalf("expected failure when sending duplicate fail " +
|
||||
"with no pending circuit")
|
||||
if err := s.ForwardPackets(nil, fail); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
select {
|
||||
case <-aliceChannelLink.packets:
|
||||
t.Fatalf("expected duplicate fail to not arrive at the destination")
|
||||
case <-time.After(time.Second):
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -645,7 +674,7 @@ func TestSwitchForwardSettleAfterFullAdd(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, ogPacket); err != nil {
|
||||
if err := s.ForwardPackets(nil, ogPacket); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -735,7 +764,7 @@ func TestSwitchForwardSettleAfterFullAdd(t *testing.T) {
|
|||
}
|
||||
|
||||
// Send the settle packet from the remote peer through the switch.
|
||||
if err := <-s2.ForwardPackets(nil, settle); err != nil {
|
||||
if err := s2.ForwardPackets(nil, settle); err != nil {
|
||||
t.Fatalf(err.Error())
|
||||
}
|
||||
|
||||
|
|
@ -759,10 +788,14 @@ func TestSwitchForwardSettleAfterFullAdd(t *testing.T) {
|
|||
t.Fatalf("wrong amount of circuits")
|
||||
}
|
||||
|
||||
// Send the settle packet again, which should fail.
|
||||
if err := <-s2.ForwardPackets(nil, settle); err != nil {
|
||||
t.Fatalf("expected success when sending duplicate settle " +
|
||||
"with no pending circuit")
|
||||
// Send the settle packet again, which not arrive at destination.
|
||||
if err := s2.ForwardPackets(nil, settle); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
select {
|
||||
case <-bobChannelLink.packets:
|
||||
t.Fatalf("expected duplicate fail to not arrive at the destination")
|
||||
case <-time.After(time.Second):
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -843,7 +876,7 @@ func TestSwitchForwardDropAfterFullAdd(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, ogPacket); err != nil {
|
||||
if err := s.ForwardPackets(nil, ogPacket); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -916,7 +949,7 @@ func TestSwitchForwardDropAfterFullAdd(t *testing.T) {
|
|||
|
||||
// Resend the failed htlc. The packet will be dropped silently since the
|
||||
// switch will detect that it has been half added previously.
|
||||
if err := <-s2.ForwardPackets(nil, ogPacket); err != nil {
|
||||
if err := s2.ForwardPackets(nil, ogPacket); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -1008,7 +1041,7 @@ func TestSwitchForwardFailAfterHalfAdd(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, ogPacket); err != nil {
|
||||
if err := s.ForwardPackets(nil, ogPacket); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -1076,7 +1109,7 @@ func TestSwitchForwardFailAfterHalfAdd(t *testing.T) {
|
|||
|
||||
// Resend the failed htlc, it should be returned to alice since the
|
||||
// switch will detect that it has been half added previously.
|
||||
err = <-s2.ForwardPackets(nil, ogPacket)
|
||||
err = s2.ForwardPackets(nil, ogPacket)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
|
@ -1174,7 +1207,7 @@ func TestSwitchForwardCircuitPersistence(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, ogPacket); err != nil {
|
||||
if err := s.ForwardPackets(nil, ogPacket); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -1264,7 +1297,7 @@ func TestSwitchForwardCircuitPersistence(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that payment circuit works properly.
|
||||
if err := <-s2.ForwardPackets(nil, ogPacket); err != nil {
|
||||
if err := s2.ForwardPackets(nil, ogPacket); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -1414,7 +1447,17 @@ func TestCircularForwards(t *testing.T) {
|
|||
|
||||
// Attempt to forward the packet and check for the expected
|
||||
// error.
|
||||
err = forwardPackets(t, s, packet)
|
||||
if err = s.ForwardPackets(nil, packet); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
select {
|
||||
case p := <-aliceChannelLink.packets:
|
||||
if p.linkFailure != nil {
|
||||
err = p.linkFailure
|
||||
}
|
||||
case <-time.After(time.Second):
|
||||
t.Fatal("no timely reply from switch")
|
||||
}
|
||||
if !reflect.DeepEqual(err, test.expectedErr) {
|
||||
t.Fatalf("expected: %v, got: %v",
|
||||
test.expectedErr, err)
|
||||
|
|
@ -1634,18 +1677,33 @@ func testSkipIneligibleLinksMultiHopForward(t *testing.T,
|
|||
}
|
||||
|
||||
// The request to forward should fail as
|
||||
err = forwardPackets(t, s, packet)
|
||||
if err := s.ForwardPackets(nil, packet); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
// We select from all links and extract the error if exists.
|
||||
// The packet must be selected but we don't always expect a link error.
|
||||
var linkError *LinkError
|
||||
select {
|
||||
case p := <-aliceChannelLink.packets:
|
||||
linkError = p.linkFailure
|
||||
case p := <-bobChannelLink1.packets:
|
||||
linkError = p.linkFailure
|
||||
case p := <-bobChannelLink2.packets:
|
||||
linkError = p.linkFailure
|
||||
case <-time.After(time.Second):
|
||||
t.Fatal("no timely reply from switch")
|
||||
}
|
||||
failure := obfuscator.(*mockObfuscator).failure
|
||||
if testCase.expectedReply == lnwire.CodeNone {
|
||||
if err != nil {
|
||||
if linkError != nil {
|
||||
t.Fatalf("forwarding should have succeeded")
|
||||
}
|
||||
if failure != nil {
|
||||
t.Fatalf("unexpected failure %T", failure)
|
||||
}
|
||||
} else {
|
||||
if err == nil {
|
||||
if linkError == nil {
|
||||
t.Fatalf("forwarding should have failed due to " +
|
||||
"inactive link")
|
||||
}
|
||||
|
|
@ -1793,7 +1851,7 @@ func TestSwitchCancel(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, request); err != nil {
|
||||
if err := s.ForwardPackets(nil, request); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -1825,7 +1883,7 @@ func TestSwitchCancel(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that payment circuit works properly.
|
||||
if err := forwardPackets(t, s, request); err != nil {
|
||||
if err := s.ForwardPackets(nil, request); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -1908,7 +1966,7 @@ func TestSwitchAddSamePayment(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, request); err != nil {
|
||||
if err := s.ForwardPackets(nil, request); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -1938,7 +1996,7 @@ func TestSwitchAddSamePayment(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that bob channel link received it.
|
||||
if err := forwardPackets(t, s, request); err != nil {
|
||||
if err := s.ForwardPackets(nil, request); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -1967,7 +2025,7 @@ func TestSwitchAddSamePayment(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that payment circuit works properly.
|
||||
if err := forwardPackets(t, s, request); err != nil {
|
||||
if err := s.ForwardPackets(nil, request); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -1993,7 +2051,7 @@ func TestSwitchAddSamePayment(t *testing.T) {
|
|||
}
|
||||
|
||||
// Handle the request and checks that payment circuit works properly.
|
||||
if err := forwardPackets(t, s, request); err != nil {
|
||||
if err := s.ForwardPackets(nil, request); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
|
|
@ -2136,7 +2194,7 @@ func TestSwitchSendPayment(t *testing.T) {
|
|||
},
|
||||
}
|
||||
|
||||
if err := forwardPackets(t, s, packet); err != nil {
|
||||
if err := s.ForwardPackets(nil, packet); err != nil {
|
||||
t.Fatalf("can't forward htlc packet: %v", err)
|
||||
}
|
||||
|
||||
|
|
@ -2631,7 +2689,7 @@ func TestInvalidFailure(t *testing.T) {
|
|||
},
|
||||
}
|
||||
|
||||
if err := forwardPackets(t, s, packet); err != nil {
|
||||
if err := s.ForwardPackets(nil, packet); err != nil {
|
||||
t.Fatalf("can't forward htlc packet: %v", err)
|
||||
}
|
||||
|
||||
|
|
@ -3058,16 +3116,185 @@ func getThreeHopEvents(channels *clusterChannels, htlcID uint64,
|
|||
return aliceEvents, bobEvents, carolEvents
|
||||
}
|
||||
|
||||
// forwardPackets forwards packets to the switch and enforces a timeout on the
|
||||
// reply.
|
||||
func forwardPackets(t *testing.T, s *Switch, packets ...*htlcPacket) error {
|
||||
type mockForwardInterceptor struct {
|
||||
intercepted InterceptedForward
|
||||
}
|
||||
|
||||
select {
|
||||
case err := <-s.ForwardPackets(nil, packets...):
|
||||
return err
|
||||
func (m *mockForwardInterceptor) InterceptForwardHtlc(intercepted InterceptedForward) bool {
|
||||
|
||||
case <-time.After(time.Second):
|
||||
t.Fatal("no timely reply from switch")
|
||||
return nil
|
||||
m.intercepted = intercepted
|
||||
return true
|
||||
}
|
||||
|
||||
func (m *mockForwardInterceptor) settle(preimage lntypes.Preimage) error {
|
||||
return m.intercepted.Settle(preimage)
|
||||
}
|
||||
|
||||
func (m *mockForwardInterceptor) fail() error {
|
||||
return m.intercepted.Fail()
|
||||
}
|
||||
|
||||
func (m *mockForwardInterceptor) resume() error {
|
||||
return m.intercepted.Resume()
|
||||
}
|
||||
|
||||
func assertNumCircuits(t *testing.T, s *Switch, pending, opened int) {
|
||||
if s.circuits.NumPending() != pending {
|
||||
t.Fatal("wrong amount of half circuits")
|
||||
}
|
||||
if s.circuits.NumOpen() != opened {
|
||||
t.Fatal("wrong amount of circuits")
|
||||
}
|
||||
}
|
||||
|
||||
func assertOutgoingLinkReceive(t *testing.T, targetLink *mockChannelLink,
|
||||
expectReceive bool) {
|
||||
|
||||
// Pull packet from targetLink link.
|
||||
select {
|
||||
case packet := <-targetLink.packets:
|
||||
if !expectReceive {
|
||||
t.Fatal("forward was intercepted, shouldn't land at bob link")
|
||||
} else if err := targetLink.completeCircuit(packet); err != nil {
|
||||
t.Fatalf("unable to complete payment circuit: %v", err)
|
||||
}
|
||||
|
||||
case <-time.After(time.Second):
|
||||
if expectReceive {
|
||||
t.Fatal("request was not propagated to destination")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestSwitchHoldForward(t *testing.T) {
|
||||
t.Parallel()
|
||||
|
||||
chanID1, chanID2, aliceChanID, bobChanID := genIDs()
|
||||
|
||||
alicePeer, err := newMockServer(
|
||||
t, "alice", testStartingHeight, nil, testDefaultDelta,
|
||||
)
|
||||
if err != nil {
|
||||
t.Fatalf("unable to create alice server: %v", err)
|
||||
}
|
||||
bobPeer, err := newMockServer(
|
||||
t, "bob", testStartingHeight, nil, testDefaultDelta,
|
||||
)
|
||||
if err != nil {
|
||||
t.Fatalf("unable to create bob server: %v", err)
|
||||
}
|
||||
|
||||
tempPath, err := ioutil.TempDir("", "circuitdb")
|
||||
if err != nil {
|
||||
t.Fatalf("unable to temporary path: %v", err)
|
||||
}
|
||||
|
||||
cdb, err := channeldb.Open(tempPath)
|
||||
if err != nil {
|
||||
t.Fatalf("unable to open channeldb: %v", err)
|
||||
}
|
||||
|
||||
s, err := initSwitchWithDB(testStartingHeight, cdb)
|
||||
if err != nil {
|
||||
t.Fatalf("unable to init switch: %v", err)
|
||||
}
|
||||
if err := s.Start(); err != nil {
|
||||
t.Fatalf("unable to start switch: %v", err)
|
||||
}
|
||||
|
||||
defer func() {
|
||||
if err := s.Stop(); err != nil {
|
||||
t.Fatalf(err.Error())
|
||||
}
|
||||
}()
|
||||
|
||||
aliceChannelLink := newMockChannelLink(
|
||||
s, chanID1, aliceChanID, alicePeer, true,
|
||||
)
|
||||
bobChannelLink := newMockChannelLink(
|
||||
s, chanID2, bobChanID, bobPeer, true,
|
||||
)
|
||||
if err := s.AddLink(aliceChannelLink); err != nil {
|
||||
t.Fatalf("unable to add alice link: %v", err)
|
||||
}
|
||||
if err := s.AddLink(bobChannelLink); err != nil {
|
||||
t.Fatalf("unable to add bob link: %v", err)
|
||||
}
|
||||
|
||||
// Create request which should be forwarded from Alice channel link to
|
||||
// bob channel link.
|
||||
preimage := [sha256.Size]byte{1}
|
||||
rhash := fastsha256.Sum256(preimage[:])
|
||||
ogPacket := &htlcPacket{
|
||||
incomingChanID: aliceChannelLink.ShortChanID(),
|
||||
incomingHTLCID: 0,
|
||||
outgoingChanID: bobChannelLink.ShortChanID(),
|
||||
obfuscator: NewMockObfuscator(),
|
||||
htlc: &lnwire.UpdateAddHTLC{
|
||||
PaymentHash: rhash,
|
||||
Amount: 1,
|
||||
},
|
||||
}
|
||||
|
||||
forwardInterceptor := &mockForwardInterceptor{}
|
||||
switchForwardInterceptor := NewInterceptableSwitch(s)
|
||||
switchForwardInterceptor.SetInterceptor(forwardInterceptor.InterceptForwardHtlc)
|
||||
linkQuit := make(chan struct{})
|
||||
|
||||
// Test resume a hold forward
|
||||
assertNumCircuits(t, s, 0, 0)
|
||||
if err := switchForwardInterceptor.ForwardPackets(linkQuit, ogPacket); err != nil {
|
||||
t.Fatalf("can't forward htlc packet: %v", err)
|
||||
}
|
||||
assertNumCircuits(t, s, 0, 0)
|
||||
assertOutgoingLinkReceive(t, bobChannelLink, false)
|
||||
|
||||
if err := forwardInterceptor.resume(); err != nil {
|
||||
t.Fatalf("failed to resume forward")
|
||||
}
|
||||
assertOutgoingLinkReceive(t, bobChannelLink, true)
|
||||
assertNumCircuits(t, s, 1, 1)
|
||||
|
||||
// settling the htlc to close the circuit.
|
||||
settle := &htlcPacket{
|
||||
outgoingChanID: bobChannelLink.ShortChanID(),
|
||||
outgoingHTLCID: 0,
|
||||
amount: 1,
|
||||
htlc: &lnwire.UpdateFulfillHTLC{
|
||||
PaymentPreimage: preimage,
|
||||
},
|
||||
}
|
||||
if err := switchForwardInterceptor.ForwardPackets(linkQuit, settle); err != nil {
|
||||
t.Fatalf("can't forward htlc packet: %v", err)
|
||||
}
|
||||
assertOutgoingLinkReceive(t, aliceChannelLink, true)
|
||||
assertNumCircuits(t, s, 0, 0)
|
||||
|
||||
// Test failing a hold forward
|
||||
if err := switchForwardInterceptor.ForwardPackets(linkQuit, ogPacket); err != nil {
|
||||
t.Fatalf("can't forward htlc packet: %v", err)
|
||||
}
|
||||
assertNumCircuits(t, s, 0, 0)
|
||||
assertOutgoingLinkReceive(t, bobChannelLink, false)
|
||||
|
||||
if err := forwardInterceptor.fail(); err != nil {
|
||||
t.Fatalf("failed to cancel forward %v", err)
|
||||
}
|
||||
assertOutgoingLinkReceive(t, bobChannelLink, false)
|
||||
assertOutgoingLinkReceive(t, aliceChannelLink, true)
|
||||
assertNumCircuits(t, s, 0, 0)
|
||||
|
||||
// Test settling a hold forward
|
||||
if err := switchForwardInterceptor.ForwardPackets(linkQuit, ogPacket); err != nil {
|
||||
t.Fatalf("can't forward htlc packet: %v", err)
|
||||
}
|
||||
assertNumCircuits(t, s, 0, 0)
|
||||
assertOutgoingLinkReceive(t, bobChannelLink, false)
|
||||
|
||||
if err := forwardInterceptor.settle(preimage); err != nil {
|
||||
t.Fatal("failed to cancel forward")
|
||||
}
|
||||
assertOutgoingLinkReceive(t, bobChannelLink, false)
|
||||
assertOutgoingLinkReceive(t, aliceChannelLink, true)
|
||||
assertNumCircuits(t, s, 0, 0)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -211,6 +211,8 @@ http:
|
|||
# deprecated, no REST endpoint
|
||||
- selector: routerrpc.Router.TrackPayment
|
||||
# deprecated, no REST endpoint
|
||||
- selector: routerrpc.HtlcInterceptor
|
||||
# request streaming RPC, REST not supported
|
||||
|
||||
# signrpc/signer.proto
|
||||
- selector: signrpc.Signer.SignOutputRaw
|
||||
|
|
|
|||
217
lnrpc/routerrpc/forward_interceptor.go
Normal file
217
lnrpc/routerrpc/forward_interceptor.go
Normal file
|
|
@ -0,0 +1,217 @@
|
|||
package routerrpc
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"sync"
|
||||
|
||||
"github.com/lightningnetwork/lnd/channeldb"
|
||||
"github.com/lightningnetwork/lnd/htlcswitch"
|
||||
"github.com/lightningnetwork/lnd/lntypes"
|
||||
"github.com/lightningnetwork/lnd/lnwire"
|
||||
)
|
||||
|
||||
var (
|
||||
// ErrFwdNotExists is an error returned when the caller tries to resolve
|
||||
// a forward that doesn't exist anymore.
|
||||
ErrFwdNotExists = errors.New("forward does not exist")
|
||||
|
||||
// ErrMissingPreimage is an error returned when the caller tries to settle
|
||||
// a forward and doesn't provide a preimage.
|
||||
ErrMissingPreimage = errors.New("missing preimage")
|
||||
)
|
||||
|
||||
// forwardInterceptor is a helper struct that handles the lifecycle of an rpc
|
||||
// interceptor streaming session.
|
||||
// It is created when the stream opens and disconnects when the stream closes.
|
||||
type forwardInterceptor struct {
|
||||
// server is the Server reference
|
||||
server *Server
|
||||
|
||||
// holdForwards is a map of current hold forwards and their corresponding
|
||||
// ForwardResolver.
|
||||
holdForwards map[channeldb.CircuitKey]htlcswitch.InterceptedForward
|
||||
|
||||
// stream is the bidirectional RPC stream
|
||||
stream Router_HtlcInterceptorServer
|
||||
|
||||
// quit is a channel that is closed when this forwardInterceptor is shutting
|
||||
// down.
|
||||
quit chan struct{}
|
||||
|
||||
// intercepted is where we stream all intercepted packets coming from
|
||||
// the switch.
|
||||
intercepted chan htlcswitch.InterceptedForward
|
||||
|
||||
wg sync.WaitGroup
|
||||
}
|
||||
|
||||
// newForwardInterceptor creates a new forwardInterceptor.
|
||||
func newForwardInterceptor(server *Server, stream Router_HtlcInterceptorServer) *forwardInterceptor {
|
||||
return &forwardInterceptor{
|
||||
server: server,
|
||||
stream: stream,
|
||||
holdForwards: make(
|
||||
map[channeldb.CircuitKey]htlcswitch.InterceptedForward),
|
||||
quit: make(chan struct{}),
|
||||
intercepted: make(chan htlcswitch.InterceptedForward),
|
||||
}
|
||||
}
|
||||
|
||||
// run sends the intercepted packets to the client and receives the
|
||||
// corersponding responses. On one hand it regsitered itself as an interceptor
|
||||
// that receives the switch packets and on the other hand launches a go routine
|
||||
// to read from the client stream.
|
||||
// To coordinate all this and make sure it is safe for concurrent access all
|
||||
// packets are sent to the main where they are handled.
|
||||
func (r *forwardInterceptor) run() error {
|
||||
// make sure we disconnect and resolves all remaining packets if any.
|
||||
defer r.onDisconnect()
|
||||
|
||||
// Register our interceptor so we receive all forwarded packets.
|
||||
interceptableForwarder := r.server.cfg.RouterBackend.InterceptableForwarder
|
||||
interceptableForwarder.SetInterceptor(r.onIntercept)
|
||||
defer interceptableForwarder.SetInterceptor(nil)
|
||||
|
||||
// start a go routine that reads client resolutions.
|
||||
errChan := make(chan error)
|
||||
resolutionRequests := make(chan *ForwardHtlcInterceptResponse)
|
||||
r.wg.Add(1)
|
||||
go r.readClientResponses(resolutionRequests, errChan)
|
||||
|
||||
// run the main loop that synchronizes both sides input into one go routine.
|
||||
for {
|
||||
select {
|
||||
case intercepted := <-r.intercepted:
|
||||
log.Tracef("sending intercepted packet to client %v", intercepted)
|
||||
// in case we couldn't forward we exit the loop and drain the
|
||||
// current interceptor as this indicates on a connection problem.
|
||||
if err := r.holdAndForwardToClient(intercepted); err != nil {
|
||||
return err
|
||||
}
|
||||
case resolution := <-resolutionRequests:
|
||||
log.Tracef("resolving intercepted packet %v", resolution)
|
||||
// in case we couldn't resolve we just add a log line since this
|
||||
// does not indicate on any connection problem.
|
||||
if err := r.resolveFromClient(resolution); err != nil {
|
||||
log.Warnf("client resolution of intercepted "+
|
||||
"packet failed %v", err)
|
||||
}
|
||||
case err := <-errChan:
|
||||
return err
|
||||
case <-r.server.quit:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// onIntercept is the function that is called by the switch for every forwarded
|
||||
// packet. Our interceptor makes sure we hold the packet and then signal to the
|
||||
// main loop to handle the packet. We only return true if we were able
|
||||
// to deliver the packet to the main loop.
|
||||
func (r *forwardInterceptor) onIntercept(p htlcswitch.InterceptedForward) bool {
|
||||
select {
|
||||
case r.intercepted <- p:
|
||||
return true
|
||||
case <-r.quit:
|
||||
return false
|
||||
case <-r.server.quit:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
func (r *forwardInterceptor) readClientResponses(
|
||||
resolutionChan chan *ForwardHtlcInterceptResponse, errChan chan error) {
|
||||
|
||||
defer r.wg.Done()
|
||||
for {
|
||||
resp, err := r.stream.Recv()
|
||||
if err != nil {
|
||||
errChan <- err
|
||||
return
|
||||
}
|
||||
|
||||
// Now that we have the response from the RPC client, send it to
|
||||
// the responses chan.
|
||||
select {
|
||||
case resolutionChan <- resp:
|
||||
case <-r.quit:
|
||||
return
|
||||
case <-r.server.quit:
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// holdAndForwardToClient forwards the intercepted htlc to the client.
|
||||
func (r *forwardInterceptor) holdAndForwardToClient(
|
||||
forward htlcswitch.InterceptedForward) error {
|
||||
|
||||
htlc := forward.Packet()
|
||||
inKey := forward.CircuitKey()
|
||||
|
||||
// First hold the forward, then send to client.
|
||||
r.holdForwards[forward.CircuitKey()] = forward
|
||||
interceptionRequest := &ForwardHtlcInterceptRequest{
|
||||
IncomingCircuitKey: &CircuitKey{
|
||||
ChanId: inKey.ChanID.ToUint64(),
|
||||
HtlcId: inKey.HtlcID,
|
||||
},
|
||||
HtlcPaymentHash: htlc.PaymentHash[:],
|
||||
AmountMsat: uint64(htlc.Amount),
|
||||
Expiry: htlc.Expiry,
|
||||
}
|
||||
|
||||
return r.stream.Send(interceptionRequest)
|
||||
}
|
||||
|
||||
// resolveFromClient handles a resolution arrived from the client.
|
||||
func (r *forwardInterceptor) resolveFromClient(
|
||||
in *ForwardHtlcInterceptResponse) error {
|
||||
|
||||
circuitKey := channeldb.CircuitKey{
|
||||
ChanID: lnwire.NewShortChanIDFromInt(in.IncomingCircuitKey.ChanId),
|
||||
HtlcID: in.IncomingCircuitKey.HtlcId,
|
||||
}
|
||||
var interceptedForward htlcswitch.InterceptedForward
|
||||
interceptedForward, ok := r.holdForwards[circuitKey]
|
||||
if !ok {
|
||||
return ErrFwdNotExists
|
||||
}
|
||||
delete(r.holdForwards, circuitKey)
|
||||
|
||||
switch in.Action {
|
||||
case ResolveHoldForwardAction_RESUME:
|
||||
return interceptedForward.Resume()
|
||||
case ResolveHoldForwardAction_FAIL:
|
||||
return interceptedForward.Fail()
|
||||
case ResolveHoldForwardAction_SETTLE:
|
||||
if in.Preimage == nil {
|
||||
return ErrMissingPreimage
|
||||
}
|
||||
preimage, err := lntypes.MakePreimage(in.Preimage)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return interceptedForward.Settle(preimage)
|
||||
default:
|
||||
return fmt.Errorf("unrecognized resolve action %v", in.Action)
|
||||
}
|
||||
}
|
||||
|
||||
// onDisconnect removes all previousely held forwards from
|
||||
// the store. Before they are removed it ensure to resume as the default
|
||||
// behavior.
|
||||
func (r *forwardInterceptor) onDisconnect() {
|
||||
// Then close the channel so all go routine will exit.
|
||||
close(r.quit)
|
||||
|
||||
log.Infof("RPC interceptor disconnected, resolving held packets")
|
||||
for key, forward := range r.holdForwards {
|
||||
if err := forward.Resume(); err != nil {
|
||||
log.Errorf("failed to resume hold forward %v", err)
|
||||
}
|
||||
delete(r.holdForwards, key)
|
||||
}
|
||||
r.wg.Wait()
|
||||
}
|
||||
|
|
@ -169,6 +169,34 @@ func (PaymentState) EnumDescriptor() ([]byte, []int) {
|
|||
return fileDescriptor_7a0613f69d37b0a5, []int{1}
|
||||
}
|
||||
|
||||
type ResolveHoldForwardAction int32
|
||||
|
||||
const (
|
||||
ResolveHoldForwardAction_SETTLE ResolveHoldForwardAction = 0
|
||||
ResolveHoldForwardAction_FAIL ResolveHoldForwardAction = 1
|
||||
ResolveHoldForwardAction_RESUME ResolveHoldForwardAction = 2
|
||||
)
|
||||
|
||||
var ResolveHoldForwardAction_name = map[int32]string{
|
||||
0: "SETTLE",
|
||||
1: "FAIL",
|
||||
2: "RESUME",
|
||||
}
|
||||
|
||||
var ResolveHoldForwardAction_value = map[string]int32{
|
||||
"SETTLE": 0,
|
||||
"FAIL": 1,
|
||||
"RESUME": 2,
|
||||
}
|
||||
|
||||
func (x ResolveHoldForwardAction) String() string {
|
||||
return proto.EnumName(ResolveHoldForwardAction_name, int32(x))
|
||||
}
|
||||
|
||||
func (ResolveHoldForwardAction) EnumDescriptor() ([]byte, []int) {
|
||||
return fileDescriptor_7a0613f69d37b0a5, []int{2}
|
||||
}
|
||||
|
||||
type HtlcEvent_EventType int32
|
||||
|
||||
const (
|
||||
|
|
@ -1727,9 +1755,196 @@ func (m *PaymentStatus) GetHtlcs() []*lnrpc.HTLCAttempt {
|
|||
return nil
|
||||
}
|
||||
|
||||
type CircuitKey struct {
|
||||
/// The id of the channel that the is part of this circuit.
|
||||
ChanId uint64 `protobuf:"varint,1,opt,name=chan_id,json=chanId,proto3" json:"chan_id,omitempty"`
|
||||
/// The index of the incoming htlc in the incoming channel.
|
||||
HtlcId uint64 `protobuf:"varint,2,opt,name=htlc_id,json=htlcId,proto3" json:"htlc_id,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *CircuitKey) Reset() { *m = CircuitKey{} }
|
||||
func (m *CircuitKey) String() string { return proto.CompactTextString(m) }
|
||||
func (*CircuitKey) ProtoMessage() {}
|
||||
func (*CircuitKey) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_7a0613f69d37b0a5, []int{24}
|
||||
}
|
||||
|
||||
func (m *CircuitKey) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_CircuitKey.Unmarshal(m, b)
|
||||
}
|
||||
func (m *CircuitKey) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_CircuitKey.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *CircuitKey) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_CircuitKey.Merge(m, src)
|
||||
}
|
||||
func (m *CircuitKey) XXX_Size() int {
|
||||
return xxx_messageInfo_CircuitKey.Size(m)
|
||||
}
|
||||
func (m *CircuitKey) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_CircuitKey.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_CircuitKey proto.InternalMessageInfo
|
||||
|
||||
func (m *CircuitKey) GetChanId() uint64 {
|
||||
if m != nil {
|
||||
return m.ChanId
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *CircuitKey) GetHtlcId() uint64 {
|
||||
if m != nil {
|
||||
return m.HtlcId
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
type ForwardHtlcInterceptRequest struct {
|
||||
//
|
||||
//The key of this forwarded htlc. It defines the incoming channel id and
|
||||
//the index in this channel.
|
||||
IncomingCircuitKey *CircuitKey `protobuf:"bytes,1,opt,name=incoming_circuit_key,json=incomingCircuitKey,proto3" json:"incoming_circuit_key,omitempty"`
|
||||
//
|
||||
//The htlc payment hash. This value is not guaranteed to be unique per
|
||||
//request.
|
||||
HtlcPaymentHash []byte `protobuf:"bytes,2,opt,name=htlc_payment_hash,json=htlcPaymentHash,proto3" json:"htlc_payment_hash,omitempty"`
|
||||
/// The htlc amount.
|
||||
AmountMsat uint64 `protobuf:"varint,3,opt,name=amount_msat,json=amountMsat,proto3" json:"amount_msat,omitempty"`
|
||||
/// The htlc expiry.
|
||||
Expiry uint32 `protobuf:"varint,4,opt,name=expiry,proto3" json:"expiry,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *ForwardHtlcInterceptRequest) Reset() { *m = ForwardHtlcInterceptRequest{} }
|
||||
func (m *ForwardHtlcInterceptRequest) String() string { return proto.CompactTextString(m) }
|
||||
func (*ForwardHtlcInterceptRequest) ProtoMessage() {}
|
||||
func (*ForwardHtlcInterceptRequest) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_7a0613f69d37b0a5, []int{25}
|
||||
}
|
||||
|
||||
func (m *ForwardHtlcInterceptRequest) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_ForwardHtlcInterceptRequest.Unmarshal(m, b)
|
||||
}
|
||||
func (m *ForwardHtlcInterceptRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_ForwardHtlcInterceptRequest.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *ForwardHtlcInterceptRequest) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_ForwardHtlcInterceptRequest.Merge(m, src)
|
||||
}
|
||||
func (m *ForwardHtlcInterceptRequest) XXX_Size() int {
|
||||
return xxx_messageInfo_ForwardHtlcInterceptRequest.Size(m)
|
||||
}
|
||||
func (m *ForwardHtlcInterceptRequest) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_ForwardHtlcInterceptRequest.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_ForwardHtlcInterceptRequest proto.InternalMessageInfo
|
||||
|
||||
func (m *ForwardHtlcInterceptRequest) GetIncomingCircuitKey() *CircuitKey {
|
||||
if m != nil {
|
||||
return m.IncomingCircuitKey
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *ForwardHtlcInterceptRequest) GetHtlcPaymentHash() []byte {
|
||||
if m != nil {
|
||||
return m.HtlcPaymentHash
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *ForwardHtlcInterceptRequest) GetAmountMsat() uint64 {
|
||||
if m != nil {
|
||||
return m.AmountMsat
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *ForwardHtlcInterceptRequest) GetExpiry() uint32 {
|
||||
if m != nil {
|
||||
return m.Expiry
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
//*
|
||||
//ForwardHtlcInterceptResponse enables the caller to resolve a previously hold forward.
|
||||
//The caller can choose either to:
|
||||
//- `Resume`: Execute the default behavior (usually forward).
|
||||
//- `Reject`: Fail the htlc backwards.
|
||||
//- `Settle`: Settle this htlc with a given preimage.
|
||||
type ForwardHtlcInterceptResponse struct {
|
||||
//*
|
||||
//The key of this forwarded htlc. It defines the incoming channel id and
|
||||
//the index in this channel.
|
||||
IncomingCircuitKey *CircuitKey `protobuf:"bytes,1,opt,name=incoming_circuit_key,json=incomingCircuitKey,proto3" json:"incoming_circuit_key,omitempty"`
|
||||
// The resolve action for this intercepted htlc.
|
||||
Action ResolveHoldForwardAction `protobuf:"varint,2,opt,name=action,proto3,enum=routerrpc.ResolveHoldForwardAction" json:"action,omitempty"`
|
||||
// The preimage in case the resolve action is Settle.
|
||||
Preimage []byte `protobuf:"bytes,3,opt,name=preimage,proto3" json:"preimage,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *ForwardHtlcInterceptResponse) Reset() { *m = ForwardHtlcInterceptResponse{} }
|
||||
func (m *ForwardHtlcInterceptResponse) String() string { return proto.CompactTextString(m) }
|
||||
func (*ForwardHtlcInterceptResponse) ProtoMessage() {}
|
||||
func (*ForwardHtlcInterceptResponse) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_7a0613f69d37b0a5, []int{26}
|
||||
}
|
||||
|
||||
func (m *ForwardHtlcInterceptResponse) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_ForwardHtlcInterceptResponse.Unmarshal(m, b)
|
||||
}
|
||||
func (m *ForwardHtlcInterceptResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_ForwardHtlcInterceptResponse.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *ForwardHtlcInterceptResponse) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_ForwardHtlcInterceptResponse.Merge(m, src)
|
||||
}
|
||||
func (m *ForwardHtlcInterceptResponse) XXX_Size() int {
|
||||
return xxx_messageInfo_ForwardHtlcInterceptResponse.Size(m)
|
||||
}
|
||||
func (m *ForwardHtlcInterceptResponse) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_ForwardHtlcInterceptResponse.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_ForwardHtlcInterceptResponse proto.InternalMessageInfo
|
||||
|
||||
func (m *ForwardHtlcInterceptResponse) GetIncomingCircuitKey() *CircuitKey {
|
||||
if m != nil {
|
||||
return m.IncomingCircuitKey
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *ForwardHtlcInterceptResponse) GetAction() ResolveHoldForwardAction {
|
||||
if m != nil {
|
||||
return m.Action
|
||||
}
|
||||
return ResolveHoldForwardAction_SETTLE
|
||||
}
|
||||
|
||||
func (m *ForwardHtlcInterceptResponse) GetPreimage() []byte {
|
||||
if m != nil {
|
||||
return m.Preimage
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func init() {
|
||||
proto.RegisterEnum("routerrpc.FailureDetail", FailureDetail_name, FailureDetail_value)
|
||||
proto.RegisterEnum("routerrpc.PaymentState", PaymentState_name, PaymentState_value)
|
||||
proto.RegisterEnum("routerrpc.ResolveHoldForwardAction", ResolveHoldForwardAction_name, ResolveHoldForwardAction_value)
|
||||
proto.RegisterEnum("routerrpc.HtlcEvent_EventType", HtlcEvent_EventType_name, HtlcEvent_EventType_value)
|
||||
proto.RegisterType((*SendPaymentRequest)(nil), "routerrpc.SendPaymentRequest")
|
||||
proto.RegisterMapType((map[uint64][]byte)(nil), "routerrpc.SendPaymentRequest.DestCustomRecordsEntry")
|
||||
|
|
@ -1756,155 +1971,172 @@ func init() {
|
|||
proto.RegisterType((*SettleEvent)(nil), "routerrpc.SettleEvent")
|
||||
proto.RegisterType((*LinkFailEvent)(nil), "routerrpc.LinkFailEvent")
|
||||
proto.RegisterType((*PaymentStatus)(nil), "routerrpc.PaymentStatus")
|
||||
proto.RegisterType((*CircuitKey)(nil), "routerrpc.CircuitKey")
|
||||
proto.RegisterType((*ForwardHtlcInterceptRequest)(nil), "routerrpc.ForwardHtlcInterceptRequest")
|
||||
proto.RegisterType((*ForwardHtlcInterceptResponse)(nil), "routerrpc.ForwardHtlcInterceptResponse")
|
||||
}
|
||||
|
||||
func init() { proto.RegisterFile("routerrpc/router.proto", fileDescriptor_7a0613f69d37b0a5) }
|
||||
|
||||
var fileDescriptor_7a0613f69d37b0a5 = []byte{
|
||||
// 2283 bytes of a gzipped FileDescriptorProto
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0xb8, 0xe7, 0x4f, 0xae, 0xba, 0x1c, 0x34, 0x7e, 0x90, 0x45, 0x68, 0xec, 0x8b, 0xb3, 0xfe, 0x8b,
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0xd7, 0x6b, 0xd4, 0x82, 0x9d, 0x99, 0xed, 0xb8, 0xab, 0x20, 0x12, 0x5c, 0x89, 0x82, 0x4c, 0xa2,
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0x38, 0x22, 0x1b, 0x0f, 0xa0, 0x81, 0x69, 0x48, 0xd9, 0xa9, 0x13, 0x86, 0x8e, 0xef, 0x75, 0x7c,
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0x45, 0x83, 0xeb, 0xed, 0x9b, 0xbf, 0x81, 0xfd, 0xad, 0x54, 0xa5, 0xff, 0x27, 0x90, 0x5d, 0xda,
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0x10, 0x65, 0xb3, 0x78, 0x58, 0xbb, 0x71, 0x76, 0xd7, 0x66, 0x36, 0x8e, 0x78, 0x5e, 0x64, 0xf2,
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0x69, 0x3d, 0xf3, 0x22, 0x93, 0xcf, 0xe8, 0xd9, 0x17, 0x99, 0x7c, 0x56, 0xcf, 0xbd, 0xc8, 0xe4,
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0x73, 0xfa, 0x8e, 0xf1, 0x0f, 0x0d, 0xf2, 0x11, 0x37, 0xd7, 0x84, 0x5f, 0x29, 0xe1, 0x71, 0xa1,
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0x82, 0x29, 0xcf, 0x81, 0xb1, 0xb3, 0xa0, 0xa8, 0x09, 0x25, 0x41, 0x4c, 0x86, 0x28, 0x70, 0xac,
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0x2d, 0xc2, 0x54, 0xd4, 0xf3, 0x88, 0x43, 0xc4, 0x63, 0x46, 0xd5, 0x73, 0xc9, 0x12, 0xb5, 0xa4,
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0x70, 0x35, 0x99, 0xd0, 0x30, 0x94, 0xa7, 0x64, 0x25, 0x8b, 0xc2, 0xc4, 0x41, 0x8f, 0xa0, 0x1a,
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0xb1, 0x44, 0x67, 0xe5, 0x64, 0xbc, 0x2a, 0x58, 0x1d, 0xd7, 0x02, 0x3d, 0xce, 0xb7, 0xd8, 0x74,
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0x90, 0xca, 0x86, 0x91, 0x1f, 0x2a, 0x8d, 0x37, 0x7e, 0x03, 0xf7, 0x85, 0x2b, 0x87, 0x81, 0x7f,
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0x61, 0x5f, 0x38, 0xae, 0xc3, 0xae, 0xa3, 0x20, 0xe7, 0x86, 0x07, 0xfe, 0x82, 0xf0, 0xbb, 0x8d,
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0x5c, 0xc0, 0x81, 0xbe, 0x3f, 0xa5, 0xdc, 0x05, 0xcc, 0x97, 0x24, 0xe5, 0x02, 0xe6, 0x0b, 0x42,
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0xbc, 0xf3, 0xa6, 0x13, 0x9d, 0xd7, 0xb8, 0x82, 0xfa, 0xed, 0xb3, 0x54, 0xcc, 0x34, 0xa1, 0xb8,
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0xdc, 0xc0, 0xe2, 0x38, 0x0d, 0xc7, 0xa1, 0xb8, 0x6f, 0x53, 0x6f, 0xf7, 0xad, 0xf1, 0x47, 0x0d,
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0x76, 0x8f, 0x56, 0x8e, 0x3b, 0x4d, 0x24, 0x6e, 0x5c, 0x3b, 0x2d, 0xf9, 0x2e, 0xd8, 0xd6, 0xf4,
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0x53, 0x5b, 0x9b, 0xfe, 0x27, 0x5b, 0x1a, 0x6b, 0x5a, 0x34, 0xd6, 0xd4, 0x96, 0xb6, 0xfa, 0x3e,
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0x14, 0x37, 0x5d, 0x32, 0xac, 0x67, 0x9a, 0xe9, 0x56, 0x09, 0xc3, 0x3c, 0x6a, 0x91, 0xa1, 0xf1,
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0x39, 0xa0, 0xb8, 0xa2, 0xea, 0x42, 0xd6, 0xf5, 0x43, 0xbb, 0xbb, 0x7e, 0x3c, 0x80, 0xc6, 0x68,
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0x75, 0x11, 0x4e, 0x02, 0xe7, 0x82, 0x9e, 0x30, 0x77, 0x62, 0xbe, 0xa2, 0x1e, 0x0b, 0xa3, 0x2c,
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0xfd, 0x57, 0x06, 0x0a, 0x6b, 0x94, 0x97, 0x67, 0xc7, 0x9b, 0xf8, 0x8b, 0x48, 0x69, 0x8f, 0xba,
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||||
0x5c, 0x6f, 0xd9, 0x14, 0x76, 0x23, 0x52, 0x47, 0x52, 0xac, 0x29, 0xe7, 0x4f, 0x18, 0xa9, 0xf8,
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0x53, 0x92, 0x3f, 0x6e, 0xa3, 0xe4, 0x6f, 0x81, 0xbe, 0x96, 0x3f, 0x67, 0xee, 0x64, 0x7d, 0x29,
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0xb8, 0x12, 0xe1, 0x5c, 0x19, 0xc9, 0xb9, 0x96, 0x1c, 0x71, 0x66, 0x24, 0x67, 0x84, 0x2b, 0xce,
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0x0f, 0xa0, 0xc4, 0xf3, 0x21, 0x64, 0xf6, 0x62, 0x49, 0xbc, 0x50, 0xe4, 0x45, 0x06, 0x17, 0xd7,
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0x58, 0x3f, 0x44, 0x5f, 0x01, 0x50, 0x6e, 0x1f, 0x61, 0xd7, 0x4b, 0x2a, 0x52, 0xa2, 0x72, 0xf8,
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0x5e, 0x2c, 0x30, 0xd6, 0x17, 0x70, 0x20, 0xfe, 0x8e, 0xaf, 0x97, 0x14, 0x17, 0x68, 0xf4, 0x89,
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||||
0xbe, 0x86, 0xf2, 0xcc, 0x0f, 0x5e, 0xdb, 0xc1, 0x94, 0x08, 0x50, 0x95, 0x8d, 0xfb, 0x31, 0x09,
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0xc7, 0x92, 0x2e, 0xb6, 0x9f, 0xbc, 0x83, 0x4b, 0xb3, 0xd8, 0x1a, 0xbd, 0x04, 0x14, 0xed, 0x17,
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0x59, 0x2e, 0x85, 0xe4, 0x85, 0x90, 0xfd, 0xdb, 0x42, 0x78, 0x91, 0x8e, 0x04, 0xe9, 0xb3, 0x1b,
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||||
0x18, 0xfa, 0x02, 0x4a, 0x21, 0x65, 0xcc, 0xa5, 0x4a, 0x4c, 0x41, 0x88, 0xd9, 0x4b, 0xbc, 0x69,
|
||||
0x38, 0x39, 0x92, 0x50, 0x0c, 0x37, 0x4b, 0x74, 0x04, 0x55, 0xd7, 0xf1, 0xae, 0xe2, 0x6a, 0x80,
|
||||
0xd8, 0x5f, 0x8f, 0xed, 0xef, 0x39, 0xde, 0x55, 0x5c, 0x87, 0xb2, 0x1b, 0x07, 0x8c, 0x2f, 0xa1,
|
||||
0xb0, 0xbe, 0x25, 0x54, 0x84, 0x9d, 0xb3, 0xfe, 0xcb, 0xfe, 0xe0, 0xdb, 0xbe, 0xfe, 0x0e, 0xca,
|
||||
0x43, 0x66, 0x64, 0xf6, 0xbb, 0xba, 0xc6, 0x61, 0x6c, 0x76, 0x4c, 0xeb, 0xdc, 0xd4, 0x53, 0x7c,
|
||||
0x71, 0x3c, 0xc0, 0xdf, 0xb6, 0x71, 0x57, 0x4f, 0x1f, 0xed, 0x40, 0x56, 0x9c, 0x6b, 0xfc, 0x59,
|
||||
0x83, 0xbc, 0xf0, 0xa0, 0x37, 0xf3, 0xd1, 0xff, 0xc3, 0x3a, 0xb8, 0x44, 0x71, 0xe3, 0x0d, 0x57,
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||||
0x44, 0x5d, 0x19, 0xaf, 0x03, 0x66, 0xac, 0x70, 0xce, 0xbc, 0x0e, 0x8d, 0x35, 0x73, 0x4a, 0x32,
|
||||
0x47, 0x84, 0x35, 0xf3, 0x93, 0x98, 0xe4, 0x44, 0xc9, 0xc9, 0xe0, 0x6a, 0x44, 0x88, 0x2a, 0x6c,
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||||
0xfc, 0x6d, 0x9b, 0xa8, 0xc4, 0xb1, 0xb7, 0xad, 0xe2, 0x35, 0x7e, 0x0e, 0xa5, 0xb8, 0xcf, 0xd1,
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||||
0x63, 0xc8, 0x38, 0xde, 0xcc, 0x57, 0x89, 0x58, 0xbb, 0x11, 0x5c, 0xdc, 0x48, 0x2c, 0x18, 0x0c,
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||||
0x04, 0xfa, 0x4d, 0x3f, 0x1b, 0x65, 0x28, 0xc6, 0x9c, 0x66, 0xfc, 0x5d, 0x83, 0x72, 0xc2, 0x09,
|
||||
0xff, 0xb1, 0x74, 0xf4, 0x15, 0x94, 0x5e, 0x3b, 0x01, 0x25, 0xf1, 0xf6, 0x5f, 0x39, 0x6c, 0x24,
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||||
0xdb, 0x7f, 0xf4, 0xbf, 0xe3, 0x4f, 0x29, 0x2e, 0x72, 0x7e, 0x05, 0xa0, 0x5f, 0x42, 0x45, 0xed,
|
||||
0x24, 0x53, 0xca, 0x6c, 0xc7, 0x15, 0x57, 0x55, 0x49, 0x84, 0x87, 0xe2, 0xed, 0x0a, 0x3a, 0x2e,
|
||||
0xcf, 0xe2, 0x4b, 0xf4, 0xf1, 0x46, 0x40, 0xc8, 0x02, 0xc7, 0xbb, 0x14, 0xf7, 0x57, 0x58, 0xb3,
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||||
0x8d, 0x04, 0xc8, 0x1b, 0x79, 0x59, 0x3d, 0x1e, 0x47, 0xcc, 0x66, 0xab, 0x10, 0x7d, 0x0a, 0xd9,
|
||||
0x90, 0xd9, 0xaa, 0x92, 0x55, 0x12, 0xb9, 0x15, 0x63, 0xa4, 0x58, 0x72, 0x25, 0x5e, 0x3f, 0xa9,
|
||||
0x5b, 0xaf, 0x9f, 0x2c, 0xaf, 0x18, 0xb2, 0x8a, 0x16, 0x0f, 0x91, 0x32, 0xfe, 0x64, 0xdc, 0xeb,
|
||||
0xb4, 0x19, 0xa3, 0x8b, 0x25, 0xc3, 0x92, 0x41, 0x75, 0xb7, 0xaf, 0x01, 0x3a, 0x4e, 0x30, 0x59,
|
||||
0x39, 0xec, 0x25, 0xbd, 0xe6, 0x3d, 0x2b, 0x2a, 0xd7, 0xb2, 0xec, 0xe5, 0x26, 0xb2, 0x44, 0xdf,
|
||||
0x87, 0x9d, 0xa8, 0x10, 0xc9, 0xfa, 0x96, 0x9b, 0x8b, 0x02, 0x64, 0xfc, 0x4d, 0x83, 0x7d, 0xe5,
|
||||
0x52, 0xe9, 0x0d, 0x46, 0x83, 0x09, 0x5d, 0xae, 0x9f, 0xc5, 0xcf, 0xe1, 0xde, 0xa6, 0xa8, 0xca,
|
||||
0x83, 0x48, 0xf4, 0xd4, 0x2e, 0x1e, 0xbe, 0x1b, 0xb3, 0x74, 0xa3, 0x06, 0x46, 0xeb, 0x62, 0xbb,
|
||||
0x51, 0xed, 0x09, 0xec, 0x0a, 0x0d, 0x12, 0xaf, 0x4a, 0x69, 0x7d, 0x95, 0x13, 0x86, 0xb1, 0x97,
|
||||
0xe5, 0xfb, 0x50, 0xb4, 0x17, 0xfe, 0xca, 0x4b, 0x44, 0x3c, 0x48, 0x48, 0x04, 0xfb, 0x1e, 0xe4,
|
||||
0xe8, 0x8f, 0x4b, 0x27, 0xb8, 0x16, 0x1e, 0x2a, 0x63, 0xb5, 0x32, 0xfe, 0xa2, 0xc1, 0x83, 0xed,
|
||||
0xd6, 0xa8, 0x9e, 0xf3, 0x3f, 0x33, 0xe7, 0x0b, 0xc8, 0xd9, 0x13, 0xe6, 0xf8, 0x9e, 0x8a, 0xd2,
|
||||
0x0f, 0x63, 0x5b, 0x31, 0x0d, 0x7d, 0xf7, 0x15, 0x3d, 0xf1, 0xdd, 0xa9, 0x52, 0xa6, 0x2d, 0x58,
|
||||
0xb1, 0xda, 0x92, 0x08, 0x80, 0x74, 0x32, 0x00, 0x9e, 0xfc, 0x2e, 0x03, 0xe5, 0x44, 0x94, 0x26,
|
||||
0xcb, 0x54, 0x19, 0x0a, 0xfd, 0x01, 0xe9, 0x9a, 0xe3, 0xb6, 0xd5, 0xd3, 0x35, 0xa4, 0x43, 0x69,
|
||||
0xd0, 0xb7, 0x06, 0x7d, 0xd2, 0x35, 0x3b, 0x83, 0x2e, 0x2f, 0x58, 0xef, 0xc2, 0x6e, 0xcf, 0xea,
|
||||
0xbf, 0x24, 0xfd, 0xc1, 0x98, 0x98, 0x3d, 0xeb, 0xb9, 0x75, 0xd4, 0x33, 0xf5, 0x34, 0xba, 0x07,
|
||||
0xfa, 0xa0, 0x4f, 0x3a, 0x27, 0x6d, 0xab, 0x4f, 0xc6, 0xd6, 0xa9, 0x39, 0x38, 0x1b, 0xeb, 0x19,
|
||||
0x8e, 0xf2, 0xc8, 0x22, 0xe6, 0x77, 0x1d, 0xd3, 0xec, 0x8e, 0xc8, 0x69, 0xfb, 0x3b, 0x3d, 0x8b,
|
||||
0xea, 0x70, 0xcf, 0xea, 0x8f, 0xce, 0x8e, 0x8f, 0xad, 0x8e, 0x65, 0xf6, 0xc7, 0xe4, 0xa8, 0xdd,
|
||||
0x6b, 0xf7, 0x3b, 0xa6, 0x9e, 0x43, 0x7b, 0x80, 0xac, 0x7e, 0x67, 0x70, 0x3a, 0xec, 0x99, 0x63,
|
||||
0x93, 0x44, 0x85, 0x71, 0x07, 0xd5, 0xa0, 0x2a, 0xe4, 0xb4, 0xbb, 0x5d, 0x72, 0xdc, 0xb6, 0x7a,
|
||||
0x66, 0x57, 0xcf, 0x73, 0x4d, 0x14, 0xc7, 0x88, 0x74, 0xad, 0x51, 0xfb, 0x88, 0xc3, 0x05, 0x7e,
|
||||
0xa6, 0xd5, 0x3f, 0x1f, 0x58, 0x1d, 0x93, 0x74, 0xb8, 0x58, 0x8e, 0x02, 0x67, 0x8e, 0xd0, 0xb3,
|
||||
0x7e, 0xd7, 0xc4, 0xc3, 0xb6, 0xd5, 0xd5, 0x8b, 0x68, 0x1f, 0xee, 0x47, 0xb0, 0xf9, 0xdd, 0xd0,
|
||||
0xc2, 0xdf, 0x93, 0xf1, 0x60, 0x40, 0x46, 0x83, 0x41, 0x5f, 0x2f, 0xc5, 0x25, 0x71, 0x6b, 0x07,
|
||||
0x43, 0xb3, 0xaf, 0x97, 0xd1, 0x7d, 0xa8, 0x9d, 0x0e, 0x87, 0x24, 0xa2, 0x44, 0xc6, 0x56, 0x38,
|
||||
0x7b, 0xbb, 0xdb, 0xc5, 0xe6, 0x68, 0x44, 0x4e, 0xad, 0xd1, 0x69, 0x7b, 0xdc, 0x39, 0xd1, 0xab,
|
||||
0xdc, 0xa4, 0x91, 0x39, 0x26, 0xe3, 0xc1, 0xb8, 0xdd, 0xdb, 0xe0, 0x3a, 0x57, 0x68, 0x83, 0xf3,
|
||||
0x43, 0x7b, 0x83, 0x6f, 0xf5, 0x5d, 0x7e, 0xe1, 0x1c, 0x1e, 0x9c, 0x2b, 0x15, 0x11, 0xb7, 0x5d,
|
||||
0xb9, 0x27, 0x3a, 0x53, 0xaf, 0x71, 0xd0, 0xea, 0x9f, 0xb7, 0x7b, 0x56, 0x97, 0xbc, 0x34, 0xbf,
|
||||
0x17, 0x8d, 0xe5, 0x1e, 0x07, 0xa5, 0x66, 0x64, 0x88, 0x07, 0xcf, 0xb9, 0x22, 0xfa, 0xbb, 0x08,
|
||||
0x41, 0xa5, 0x63, 0xe1, 0xce, 0x59, 0xaf, 0x8d, 0x09, 0x1e, 0x9c, 0x8d, 0x4d, 0x7d, 0xef, 0xc9,
|
||||
0x9f, 0x34, 0x28, 0xc5, 0x0b, 0x07, 0xf7, 0xba, 0xd5, 0x27, 0xc7, 0x3d, 0xeb, 0xf9, 0xc9, 0x58,
|
||||
0x06, 0xc1, 0xe8, 0xac, 0xc3, 0x5d, 0x66, 0xf2, 0x86, 0x85, 0xa0, 0x22, 0x2f, 0x7d, 0x6d, 0x6c,
|
||||
0x8a, 0x9f, 0xa5, 0xb0, 0xfe, 0x40, 0xc9, 0x4d, 0x73, 0xe5, 0x15, 0x68, 0x62, 0x3c, 0xc0, 0x7a,
|
||||
0x06, 0x7d, 0x04, 0x4d, 0x85, 0x70, 0xbf, 0x62, 0x6c, 0x76, 0xc6, 0x64, 0xd8, 0xfe, 0xfe, 0x94,
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||||
0xbb, 0x5d, 0x06, 0xd9, 0x48, 0xcf, 0xa2, 0xf7, 0x61, 0x7f, 0xcd, 0xb5, 0x2d, 0x2e, 0x9e, 0x7c,
|
||||
0x09, 0xf5, 0xbb, 0x82, 0x1e, 0x01, 0xe4, 0x46, 0xe6, 0x78, 0xdc, 0x33, 0x65, 0x93, 0x3d, 0x96,
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||||
0x81, 0x0b, 0x90, 0xc3, 0xe6, 0xe8, 0xec, 0xd4, 0xd4, 0x53, 0x87, 0x7f, 0xcd, 0x43, 0x4e, 0xbc,
|
||||
0xfa, 0x02, 0xf4, 0x2b, 0x28, 0xc7, 0x7e, 0xd5, 0x38, 0x3f, 0x44, 0x0f, 0xdf, 0xf8, 0x7b, 0x47,
|
||||
0x23, 0x9a, 0x0d, 0x15, 0xfc, 0x4c, 0x43, 0x47, 0x50, 0x89, 0x8f, 0xf7, 0xe7, 0x87, 0x28, 0xfe,
|
||||
0x58, 0xda, 0x32, 0xf9, 0x6f, 0x91, 0xf1, 0x12, 0x74, 0x33, 0x64, 0xce, 0x82, 0xd7, 0x6c, 0x35,
|
||||
0x80, 0xa3, 0x46, 0x3c, 0xc1, 0x93, 0x53, 0x7d, 0x63, 0x7f, 0x2b, 0x4d, 0x95, 0x9c, 0x6f, 0x78,
|
||||
0x7f, 0x5c, 0x8f, 0xc0, 0xb7, 0x0c, 0x4a, 0xce, 0xdd, 0x8d, 0xf7, 0xee, 0x22, 0xab, 0xb1, 0x35,
|
||||
0xfd, 0xfb, 0x14, 0xb7, 0xb1, 0x1c, 0xa3, 0x6d, 0xb9, 0xa5, 0x1b, 0x42, 0xb7, 0x74, 0x11, 0x34,
|
||||
0x85, 0xda, 0x96, 0xf1, 0x18, 0x7d, 0x9c, 0xac, 0x63, 0x77, 0x0c, 0xd7, 0x8d, 0x47, 0x6f, 0x63,
|
||||
0x53, 0xc6, 0x4f, 0xa1, 0xb6, 0x65, 0x8e, 0x4e, 0x9c, 0x72, 0xf7, 0x14, 0x9e, 0x38, 0xe5, 0x4d,
|
||||
0xe3, 0xf8, 0x0f, 0xa0, 0xdf, 0x1c, 0xbb, 0x90, 0x71, 0x73, 0xef, 0xed, 0xf9, 0xaf, 0xf1, 0xe1,
|
||||
0x1b, 0x79, 0x94, 0x70, 0x0b, 0x60, 0x33, 0xbc, 0xa0, 0x07, 0xb1, 0x2d, 0xb7, 0x86, 0xaf, 0xc6,
|
||||
0xc3, 0x3b, 0xa8, 0x4a, 0xd4, 0x18, 0x6a, 0x5b, 0xa6, 0x99, 0xc4, 0x6d, 0xdc, 0x3d, 0xed, 0x34,
|
||||
0xee, 0x6d, 0x7b, 0xf4, 0x3f, 0xd3, 0xd0, 0xa9, 0x0c, 0xb0, 0xe8, 0xa7, 0xba, 0xb7, 0x64, 0x4c,
|
||||
0x7d, 0xfb, 0xe3, 0x64, 0x15, 0x8a, 0xd0, 0x7a, 0xa6, 0xa1, 0x01, 0x94, 0xe2, 0x59, 0xf2, 0xd6,
|
||||
0xf4, 0x79, 0xab, 0xc0, 0x19, 0x54, 0x13, 0xcd, 0xd8, 0x0f, 0xd0, 0xe3, 0xdb, 0x83, 0xc3, 0xd6,
|
||||
0x7e, 0x9d, 0x88, 0x80, 0x37, 0x3c, 0x53, 0x5a, 0xda, 0x33, 0xed, 0xe8, 0xb3, 0x5f, 0x3f, 0xbd,
|
||||
0x74, 0xd8, 0x7c, 0x75, 0x71, 0x30, 0xf1, 0x17, 0x4f, 0xc5, 0x2f, 0x71, 0x9e, 0xe3, 0x5d, 0x7a,
|
||||
0x94, 0xbd, 0xf6, 0x83, 0xab, 0xa7, 0xae, 0x37, 0x7d, 0x2a, 0xd2, 0xe0, 0xe9, 0x5a, 0xe4, 0x45,
|
||||
0x4e, 0xfc, 0x10, 0xff, 0x93, 0x7f, 0x07, 0x00, 0x00, 0xff, 0xff, 0x33, 0x56, 0x83, 0xe8, 0xb8,
|
||||
0x17, 0x00, 0x00,
|
||||
}
|
||||
|
||||
// Reference imports to suppress errors if they are not otherwise used.
|
||||
|
|
@ -1975,6 +2207,13 @@ type RouterClient interface {
|
|||
//Deprecated, use TrackPaymentV2. TrackPayment returns an update stream for
|
||||
//the payment identified by the payment hash.
|
||||
TrackPayment(ctx context.Context, in *TrackPaymentRequest, opts ...grpc.CallOption) (Router_TrackPaymentClient, error)
|
||||
//*
|
||||
//HtlcInterceptor dispatches a bi-directional streaming RPC in which
|
||||
//Forwarded HTLC requests are sent to the client and the client responds with
|
||||
//a boolean that tells LND if this htlc should be intercepted.
|
||||
//In case of interception, the htlc can be either settled, cancelled or
|
||||
//resumed later by using the ResolveHoldForward endpoint.
|
||||
HtlcInterceptor(ctx context.Context, opts ...grpc.CallOption) (Router_HtlcInterceptorClient, error)
|
||||
}
|
||||
|
||||
type routerClient struct {
|
||||
|
|
@ -2211,6 +2450,37 @@ func (x *routerTrackPaymentClient) Recv() (*PaymentStatus, error) {
|
|||
return m, nil
|
||||
}
|
||||
|
||||
func (c *routerClient) HtlcInterceptor(ctx context.Context, opts ...grpc.CallOption) (Router_HtlcInterceptorClient, error) {
|
||||
stream, err := c.cc.NewStream(ctx, &_Router_serviceDesc.Streams[5], "/routerrpc.Router/HtlcInterceptor", opts...)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
x := &routerHtlcInterceptorClient{stream}
|
||||
return x, nil
|
||||
}
|
||||
|
||||
type Router_HtlcInterceptorClient interface {
|
||||
Send(*ForwardHtlcInterceptResponse) error
|
||||
Recv() (*ForwardHtlcInterceptRequest, error)
|
||||
grpc.ClientStream
|
||||
}
|
||||
|
||||
type routerHtlcInterceptorClient struct {
|
||||
grpc.ClientStream
|
||||
}
|
||||
|
||||
func (x *routerHtlcInterceptorClient) Send(m *ForwardHtlcInterceptResponse) error {
|
||||
return x.ClientStream.SendMsg(m)
|
||||
}
|
||||
|
||||
func (x *routerHtlcInterceptorClient) Recv() (*ForwardHtlcInterceptRequest, error) {
|
||||
m := new(ForwardHtlcInterceptRequest)
|
||||
if err := x.ClientStream.RecvMsg(m); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return m, nil
|
||||
}
|
||||
|
||||
// RouterServer is the server API for Router service.
|
||||
type RouterServer interface {
|
||||
//
|
||||
|
|
@ -2269,6 +2539,13 @@ type RouterServer interface {
|
|||
//Deprecated, use TrackPaymentV2. TrackPayment returns an update stream for
|
||||
//the payment identified by the payment hash.
|
||||
TrackPayment(*TrackPaymentRequest, Router_TrackPaymentServer) error
|
||||
//*
|
||||
//HtlcInterceptor dispatches a bi-directional streaming RPC in which
|
||||
//Forwarded HTLC requests are sent to the client and the client responds with
|
||||
//a boolean that tells LND if this htlc should be intercepted.
|
||||
//In case of interception, the htlc can be either settled, cancelled or
|
||||
//resumed later by using the ResolveHoldForward endpoint.
|
||||
HtlcInterceptor(Router_HtlcInterceptorServer) error
|
||||
}
|
||||
|
||||
// UnimplementedRouterServer can be embedded to have forward compatible implementations.
|
||||
|
|
@ -2311,6 +2588,9 @@ func (*UnimplementedRouterServer) SendPayment(req *SendPaymentRequest, srv Route
|
|||
func (*UnimplementedRouterServer) TrackPayment(req *TrackPaymentRequest, srv Router_TrackPaymentServer) error {
|
||||
return status.Errorf(codes.Unimplemented, "method TrackPayment not implemented")
|
||||
}
|
||||
func (*UnimplementedRouterServer) HtlcInterceptor(srv Router_HtlcInterceptorServer) error {
|
||||
return status.Errorf(codes.Unimplemented, "method HtlcInterceptor not implemented")
|
||||
}
|
||||
|
||||
func RegisterRouterServer(s *grpc.Server, srv RouterServer) {
|
||||
s.RegisterService(&_Router_serviceDesc, srv)
|
||||
|
|
@ -2547,6 +2827,32 @@ func (x *routerTrackPaymentServer) Send(m *PaymentStatus) error {
|
|||
return x.ServerStream.SendMsg(m)
|
||||
}
|
||||
|
||||
func _Router_HtlcInterceptor_Handler(srv interface{}, stream grpc.ServerStream) error {
|
||||
return srv.(RouterServer).HtlcInterceptor(&routerHtlcInterceptorServer{stream})
|
||||
}
|
||||
|
||||
type Router_HtlcInterceptorServer interface {
|
||||
Send(*ForwardHtlcInterceptRequest) error
|
||||
Recv() (*ForwardHtlcInterceptResponse, error)
|
||||
grpc.ServerStream
|
||||
}
|
||||
|
||||
type routerHtlcInterceptorServer struct {
|
||||
grpc.ServerStream
|
||||
}
|
||||
|
||||
func (x *routerHtlcInterceptorServer) Send(m *ForwardHtlcInterceptRequest) error {
|
||||
return x.ServerStream.SendMsg(m)
|
||||
}
|
||||
|
||||
func (x *routerHtlcInterceptorServer) Recv() (*ForwardHtlcInterceptResponse, error) {
|
||||
m := new(ForwardHtlcInterceptResponse)
|
||||
if err := x.ServerStream.RecvMsg(m); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return m, nil
|
||||
}
|
||||
|
||||
var _Router_serviceDesc = grpc.ServiceDesc{
|
||||
ServiceName: "routerrpc.Router",
|
||||
HandlerType: (*RouterServer)(nil),
|
||||
|
|
@ -2606,6 +2912,12 @@ var _Router_serviceDesc = grpc.ServiceDesc{
|
|||
Handler: _Router_TrackPayment_Handler,
|
||||
ServerStreams: true,
|
||||
},
|
||||
{
|
||||
StreamName: "HtlcInterceptor",
|
||||
Handler: _Router_HtlcInterceptor_Handler,
|
||||
ServerStreams: true,
|
||||
ClientStreams: true,
|
||||
},
|
||||
},
|
||||
Metadata: "routerrpc/router.proto",
|
||||
}
|
||||
|
|
|
|||
|
|
@ -98,6 +98,15 @@ service Router {
|
|||
rpc TrackPayment (TrackPaymentRequest) returns (stream PaymentStatus) {
|
||||
option deprecated = true;
|
||||
}
|
||||
|
||||
/**
|
||||
HtlcInterceptor dispatches a bi-directional streaming RPC in which
|
||||
Forwarded HTLC requests are sent to the client and the client responds with
|
||||
a boolean that tells LND if this htlc should be intercepted.
|
||||
In case of interception, the htlc can be either settled, cancelled or
|
||||
resumed later by using the ResolveHoldForward endpoint.
|
||||
*/
|
||||
rpc HtlcInterceptor (stream ForwardHtlcInterceptResponse) returns (stream ForwardHtlcInterceptRequest);
|
||||
}
|
||||
|
||||
message SendPaymentRequest {
|
||||
|
|
@ -579,3 +588,59 @@ message PaymentStatus {
|
|||
*/
|
||||
repeated lnrpc.HTLCAttempt htlcs = 4;
|
||||
}
|
||||
|
||||
message CircuitKey {
|
||||
/// The id of the channel that the is part of this circuit.
|
||||
uint64 chan_id = 1;
|
||||
|
||||
/// The index of the incoming htlc in the incoming channel.
|
||||
uint64 htlc_id = 2;
|
||||
}
|
||||
|
||||
message ForwardHtlcInterceptRequest {
|
||||
/*
|
||||
The key of this forwarded htlc. It defines the incoming channel id and
|
||||
the index in this channel.
|
||||
*/
|
||||
CircuitKey incoming_circuit_key = 1;
|
||||
|
||||
/*
|
||||
The htlc payment hash. This value is not guaranteed to be unique per
|
||||
request.
|
||||
*/
|
||||
bytes htlc_payment_hash = 2;
|
||||
|
||||
/// The htlc amount.
|
||||
uint64 amount_msat = 3;
|
||||
|
||||
/// The htlc expiry.
|
||||
uint32 expiry = 4;
|
||||
}
|
||||
|
||||
/**
|
||||
ForwardHtlcInterceptResponse enables the caller to resolve a previously hold forward.
|
||||
The caller can choose either to:
|
||||
- `Resume`: Execute the default behavior (usually forward).
|
||||
- `Reject`: Fail the htlc backwards.
|
||||
- `Settle`: Settle this htlc with a given preimage.
|
||||
*/
|
||||
message ForwardHtlcInterceptResponse {
|
||||
/**
|
||||
The key of this forwarded htlc. It defines the incoming channel id and
|
||||
the index in this channel.
|
||||
*/
|
||||
CircuitKey incoming_circuit_key = 1;
|
||||
|
||||
// The resolve action for this intercepted htlc.
|
||||
ResolveHoldForwardAction action = 2;
|
||||
|
||||
// The preimage in case the resolve action is Settle.
|
||||
bytes preimage = 3;
|
||||
}
|
||||
|
||||
enum ResolveHoldForwardAction {
|
||||
SETTLE = 0;
|
||||
FAIL = 1;
|
||||
RESUME = 2;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -844,6 +844,21 @@
|
|||
}
|
||||
}
|
||||
},
|
||||
"routerrpcCircuitKey": {
|
||||
"type": "object",
|
||||
"properties": {
|
||||
"chan_id": {
|
||||
"type": "string",
|
||||
"format": "uint64",
|
||||
"description": "/ The id of the channel that the is part of this circuit."
|
||||
},
|
||||
"htlc_id": {
|
||||
"type": "string",
|
||||
"format": "uint64",
|
||||
"description": "/ The index of the incoming htlc in the incoming channel."
|
||||
}
|
||||
}
|
||||
},
|
||||
"routerrpcFailureDetail": {
|
||||
"type": "string",
|
||||
"enum": [
|
||||
|
|
@ -885,6 +900,30 @@
|
|||
"routerrpcForwardFailEvent": {
|
||||
"type": "object"
|
||||
},
|
||||
"routerrpcForwardHtlcInterceptRequest": {
|
||||
"type": "object",
|
||||
"properties": {
|
||||
"incoming_circuit_key": {
|
||||
"$ref": "#/definitions/routerrpcCircuitKey",
|
||||
"description": "The key of this forwarded htlc. It defines the incoming channel id and\nthe index in this channel."
|
||||
},
|
||||
"htlc_payment_hash": {
|
||||
"type": "string",
|
||||
"format": "byte",
|
||||
"description": "The htlc payment hash. This value is not guaranteed to be unique per\nrequest."
|
||||
},
|
||||
"amount_msat": {
|
||||
"type": "string",
|
||||
"format": "uint64",
|
||||
"description": "/ The htlc amount."
|
||||
},
|
||||
"expiry": {
|
||||
"type": "integer",
|
||||
"format": "int64",
|
||||
"description": "/ The htlc expiry."
|
||||
}
|
||||
}
|
||||
},
|
||||
"routerrpcHtlcEvent": {
|
||||
"type": "object",
|
||||
"properties": {
|
||||
|
|
@ -1110,6 +1149,15 @@
|
|||
"routerrpcResetMissionControlResponse": {
|
||||
"type": "object"
|
||||
},
|
||||
"routerrpcResolveHoldForwardAction": {
|
||||
"type": "string",
|
||||
"enum": [
|
||||
"SETTLE",
|
||||
"FAIL",
|
||||
"RESUME"
|
||||
],
|
||||
"default": "SETTLE"
|
||||
},
|
||||
"routerrpcRouteFeeRequest": {
|
||||
"type": "object",
|
||||
"properties": {
|
||||
|
|
|
|||
|
|
@ -70,6 +70,10 @@ type RouterBackend struct {
|
|||
// SubscribeHtlcEvents returns a subscription client for the node's
|
||||
// htlc events.
|
||||
SubscribeHtlcEvents func() (*subscribe.Client, error)
|
||||
|
||||
// InterceptableForwarder exposes the ability to intercept forward events
|
||||
// by letting the router register a ForwardInterceptor.
|
||||
InterceptableForwarder htlcswitch.InterceptableHtlcForwarder
|
||||
}
|
||||
|
||||
// MissionControl defines the mission control dependencies of routerrpc.
|
||||
|
|
|
|||
|
|
@ -34,6 +34,11 @@ const (
|
|||
var (
|
||||
errServerShuttingDown = errors.New("routerrpc server shutting down")
|
||||
|
||||
// ErrInterceptorAlreadyExists is an error returned when the a new stream
|
||||
// is opened and there is already one active interceptor.
|
||||
// The user must disconnect prior to open another stream.
|
||||
ErrInterceptorAlreadyExists = errors.New("interceptor already exists")
|
||||
|
||||
// macaroonOps are the set of capabilities that our minted macaroon (if
|
||||
// it doesn't already exist) will have.
|
||||
macaroonOps = []bakery.Op{
|
||||
|
|
@ -97,6 +102,10 @@ var (
|
|||
Entity: "offchain",
|
||||
Action: "read",
|
||||
}},
|
||||
"/routerrpc.Router/HtlcInterceptor": {{
|
||||
Entity: "offchain",
|
||||
Action: "write",
|
||||
}},
|
||||
}
|
||||
|
||||
// DefaultRouterMacFilename is the default name of the router macaroon
|
||||
|
|
@ -108,8 +117,9 @@ var (
|
|||
// Server is a stand alone sub RPC server which exposes functionality that
|
||||
// allows clients to route arbitrary payment through the Lightning Network.
|
||||
type Server struct {
|
||||
started int32 // To be used atomically.
|
||||
shutdown int32 // To be used atomically.
|
||||
started int32 // To be used atomically.
|
||||
shutdown int32 // To be used atomically.
|
||||
forwardInterceptorActive int32 // To be used atomically.
|
||||
|
||||
cfg *Config
|
||||
|
||||
|
|
@ -609,3 +619,22 @@ func (s *Server) SubscribeHtlcEvents(req *SubscribeHtlcEventsRequest,
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
// HtlcInterceptor is a bidirectional stream for streaming interception
|
||||
// requests to the caller.
|
||||
// Upon connection it does the following:
|
||||
// 1. Check if there is already a live stream, if yes it rejects the request.
|
||||
// 2. Regsitered a ForwardInterceptor
|
||||
// 3. Delivers to the caller every √√ and detect his answer.
|
||||
// It uses a local implementation of holdForwardsStore to keep all the hold
|
||||
// forwards and find them when manual resolution is later needed.
|
||||
func (s *Server) HtlcInterceptor(stream Router_HtlcInterceptorServer) error {
|
||||
// We ensure there is only one interceptor at a time.
|
||||
if !atomic.CompareAndSwapInt32(&s.forwardInterceptorActive, 0, 1) {
|
||||
return ErrInterceptorAlreadyExists
|
||||
}
|
||||
defer atomic.CompareAndSwapInt32(&s.forwardInterceptorActive, 1, 0)
|
||||
|
||||
// run the forward interceptor.
|
||||
return newForwardInterceptor(s, stream).run()
|
||||
}
|
||||
|
|
|
|||
387
lntest/itest/lnd_forward_interceptor_test.go
Normal file
387
lntest/itest/lnd_forward_interceptor_test.go
Normal file
|
|
@ -0,0 +1,387 @@
|
|||
// +build rpctest
|
||||
|
||||
package itest
|
||||
|
||||
import (
|
||||
"context"
|
||||
"encoding/hex"
|
||||
"fmt"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/btcsuite/btcd/wire"
|
||||
"github.com/btcsuite/btcutil"
|
||||
"github.com/lightningnetwork/lnd"
|
||||
"github.com/lightningnetwork/lnd/lnrpc"
|
||||
"github.com/lightningnetwork/lnd/lnrpc/routerrpc"
|
||||
"github.com/lightningnetwork/lnd/lntest"
|
||||
"github.com/lightningnetwork/lnd/routing/route"
|
||||
"google.golang.org/grpc/codes"
|
||||
"google.golang.org/grpc/status"
|
||||
)
|
||||
|
||||
type interceptorTestCase struct {
|
||||
amountMsat int64
|
||||
invoice *lnrpc.Invoice
|
||||
shouldHold bool
|
||||
interceptorAction routerrpc.ResolveHoldForwardAction
|
||||
}
|
||||
|
||||
// testForwardInterceptor tests the forward interceptor RPC layer.
|
||||
// The test creates a cluster of 3 connected nodes: Alice -> Bob -> Carol
|
||||
// Alice sends 4 different payments to Carol while the interceptor handles
|
||||
// differently the htlcs.
|
||||
// The test ensures that:
|
||||
// 1. Intercepted failed htlcs result in no payment (invoice is not settled).
|
||||
// 2. Intercepted resumed htlcs result in a payment (invoice is settled).
|
||||
// 3. Intercepted held htlcs result in no payment (invoice is not settled).
|
||||
// 4. When Interceptor disconnects it resumes all held htlcs, which result in
|
||||
// valid payment (invoice is settled).
|
||||
func testForwardInterceptor(net *lntest.NetworkHarness, t *harnessTest) {
|
||||
// initialize the test context with 3 connected nodes.
|
||||
testContext := newInterceptorTestContext(t, net)
|
||||
defer testContext.shutdownNodes()
|
||||
|
||||
const (
|
||||
chanAmt = btcutil.Amount(300000)
|
||||
)
|
||||
|
||||
// Open and wait for channels.
|
||||
testContext.openChannel(testContext.alice, testContext.bob, chanAmt)
|
||||
testContext.openChannel(testContext.bob, testContext.carol, chanAmt)
|
||||
defer testContext.closeChannels()
|
||||
testContext.waitForChannels()
|
||||
|
||||
// Connect the interceptor.
|
||||
ctx := context.Background()
|
||||
ctxt, cancelInterceptor := context.WithTimeout(ctx, defaultTimeout)
|
||||
interceptor, err := testContext.bob.RouterClient.HtlcInterceptor(ctxt)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to create HtlcInterceptor %v", err)
|
||||
}
|
||||
|
||||
// Prepare the test cases.
|
||||
testCases, err := testContext.prepareTestCases()
|
||||
if err != nil {
|
||||
t.Fatalf("failed to prepare test cases")
|
||||
}
|
||||
|
||||
// A channel for the interceptor go routine to send the requested packets.
|
||||
interceptedChan := make(chan *routerrpc.ForwardHtlcInterceptRequest,
|
||||
len(testCases))
|
||||
|
||||
// Run the interceptor loop in its own go routine.
|
||||
var wg sync.WaitGroup
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
for {
|
||||
request, err := interceptor.Recv()
|
||||
if err != nil {
|
||||
// If it is just the error result of the context cancellation
|
||||
// the we exit silently.
|
||||
status, ok := status.FromError(err)
|
||||
if ok && status.Code() == codes.Canceled {
|
||||
return
|
||||
}
|
||||
// Otherwise it an unexpected error, we fail the test.
|
||||
t.t.Errorf("unexpected error in interceptor.Recv() %v", err)
|
||||
return
|
||||
}
|
||||
interceptedChan <- request
|
||||
}
|
||||
}()
|
||||
|
||||
// For each test case make sure we initiate a payment from Alice to Carol
|
||||
// routed through Bob. For each payment we also test its final status
|
||||
// according to the interceptorAction specified in the test case.
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
for _, tc := range testCases {
|
||||
attempt, err := testContext.sendAliceToCarolPayment(
|
||||
context.Background(), tc.invoice.ValueMsat, tc.invoice.RHash)
|
||||
|
||||
if t.t.Failed() {
|
||||
return
|
||||
}
|
||||
if err != nil {
|
||||
t.t.Errorf("failed to send payment %v", err)
|
||||
}
|
||||
|
||||
switch tc.interceptorAction {
|
||||
// For 'fail' interceptor action we make sure the payment failed.
|
||||
case routerrpc.ResolveHoldForwardAction_FAIL:
|
||||
if attempt.Status != lnrpc.HTLCAttempt_FAILED {
|
||||
t.t.Errorf("expected payment to fail, instead got %v", attempt.Status)
|
||||
}
|
||||
|
||||
// For settle and resume we make sure the payment is successfull.
|
||||
case routerrpc.ResolveHoldForwardAction_SETTLE:
|
||||
fallthrough
|
||||
|
||||
case routerrpc.ResolveHoldForwardAction_RESUME:
|
||||
if attempt.Status != lnrpc.HTLCAttempt_SUCCEEDED {
|
||||
t.t.Errorf("expected payment to succeed, instead got %v", attempt.Status)
|
||||
}
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
// We make sure here the interceptor has processed all packets before we
|
||||
// check the payment statuses.
|
||||
for i := 0; i < len(testCases); i++ {
|
||||
select {
|
||||
case request := <-interceptedChan:
|
||||
testCase := testCases[i]
|
||||
|
||||
// For held packets we ignore, keeping them in hold status.
|
||||
if testCase.shouldHold {
|
||||
continue
|
||||
}
|
||||
|
||||
// For all other packets we resolve according to the test case.
|
||||
interceptor.Send(&routerrpc.ForwardHtlcInterceptResponse{
|
||||
IncomingCircuitKey: request.IncomingCircuitKey,
|
||||
Action: testCase.interceptorAction,
|
||||
Preimage: testCase.invoice.RPreimage,
|
||||
})
|
||||
case <-time.After(defaultTimeout):
|
||||
t.Fatalf("response from interceptor was not received %v", i)
|
||||
}
|
||||
}
|
||||
|
||||
// At this point we are left with the held packets, we want to make sure
|
||||
// each one of them has a corresponding 'in-flight' payment at
|
||||
// Alice's node.
|
||||
payments, err := testContext.alice.ListPayments(context.Background(),
|
||||
&lnrpc.ListPaymentsRequest{IncludeIncomplete: true})
|
||||
if err != nil {
|
||||
t.Fatalf("failed to fetch payments")
|
||||
}
|
||||
for _, testCase := range testCases {
|
||||
if testCase.shouldHold {
|
||||
hashStr := hex.EncodeToString(testCase.invoice.RHash)
|
||||
var foundPayment *lnrpc.Payment
|
||||
expectedAmt := testCase.invoice.ValueMsat
|
||||
for _, p := range payments.Payments {
|
||||
if p.PaymentHash == hashStr {
|
||||
foundPayment = p
|
||||
break
|
||||
}
|
||||
}
|
||||
if foundPayment == nil {
|
||||
t.Fatalf("expected to find pending payment for held"+
|
||||
"htlc %v", hashStr)
|
||||
}
|
||||
if foundPayment.ValueMsat != expectedAmt ||
|
||||
foundPayment.Status != lnrpc.Payment_IN_FLIGHT {
|
||||
|
||||
t.Fatalf("expected to find in flight payment for"+
|
||||
"amount %v, %v", testCase.invoice.ValueMsat, foundPayment.Status)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Disconnect interceptor should cause resume held packets.
|
||||
// After that we wait for all go routines to finish, including the one
|
||||
// that tests the payment final status for the held payment.
|
||||
cancelInterceptor()
|
||||
wg.Wait()
|
||||
}
|
||||
|
||||
// interceptorTestContext is a helper struct to hold the test context and
|
||||
// provide the needed functionality.
|
||||
type interceptorTestContext struct {
|
||||
t *harnessTest
|
||||
net *lntest.NetworkHarness
|
||||
|
||||
// Keep a list of all our active channels.
|
||||
networkChans []*lnrpc.ChannelPoint
|
||||
closeChannelFuncs []func()
|
||||
|
||||
alice, bob, carol *lntest.HarnessNode
|
||||
nodes []*lntest.HarnessNode
|
||||
}
|
||||
|
||||
func newInterceptorTestContext(t *harnessTest,
|
||||
net *lntest.NetworkHarness) *interceptorTestContext {
|
||||
|
||||
ctxb := context.Background()
|
||||
|
||||
// Create a three-node context consisting of Alice, Bob and Carol
|
||||
carol, err := net.NewNode("carol", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("unable to create carol: %v", err)
|
||||
}
|
||||
|
||||
// Connect nodes
|
||||
nodes := []*lntest.HarnessNode{net.Alice, net.Bob, carol}
|
||||
for i := 0; i < len(nodes); i++ {
|
||||
for j := i + 1; j < len(nodes); j++ {
|
||||
ctxt, _ := context.WithTimeout(ctxb, defaultTimeout)
|
||||
if err := net.EnsureConnected(ctxt, nodes[i], nodes[j]); err != nil {
|
||||
t.Fatalf("unable to connect nodes: %v", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ctx := interceptorTestContext{
|
||||
t: t,
|
||||
net: net,
|
||||
alice: net.Alice,
|
||||
bob: net.Bob,
|
||||
carol: carol,
|
||||
nodes: nodes,
|
||||
}
|
||||
|
||||
return &ctx
|
||||
}
|
||||
|
||||
// prepareTestCases prepares 4 tests:
|
||||
// 1. failed htlc.
|
||||
// 2. resumed htlc.
|
||||
// 3. settling htlc externally.
|
||||
// 4. held htlc that is resumed later.
|
||||
func (c *interceptorTestContext) prepareTestCases() (
|
||||
[]*interceptorTestCase, error) {
|
||||
|
||||
cases := []*interceptorTestCase{
|
||||
&interceptorTestCase{amountMsat: 1000, shouldHold: false,
|
||||
interceptorAction: routerrpc.ResolveHoldForwardAction_FAIL},
|
||||
&interceptorTestCase{amountMsat: 1000, shouldHold: false,
|
||||
interceptorAction: routerrpc.ResolveHoldForwardAction_RESUME},
|
||||
&interceptorTestCase{amountMsat: 1000, shouldHold: false,
|
||||
interceptorAction: routerrpc.ResolveHoldForwardAction_SETTLE},
|
||||
&interceptorTestCase{amountMsat: 1000, shouldHold: true,
|
||||
interceptorAction: routerrpc.ResolveHoldForwardAction_RESUME},
|
||||
}
|
||||
|
||||
for _, t := range cases {
|
||||
addResponse, err := c.carol.AddInvoice(context.Background(), &lnrpc.Invoice{
|
||||
ValueMsat: t.amountMsat,
|
||||
})
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("unable to add invoice: %v", err)
|
||||
}
|
||||
invoice, err := c.carol.LookupInvoice(context.Background(), &lnrpc.PaymentHash{
|
||||
RHashStr: hex.EncodeToString(addResponse.RHash),
|
||||
})
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("unable to add invoice: %v", err)
|
||||
}
|
||||
t.invoice = invoice
|
||||
}
|
||||
return cases, nil
|
||||
}
|
||||
|
||||
func (c *interceptorTestContext) openChannel(from, to *lntest.HarnessNode, chanSize btcutil.Amount) {
|
||||
ctxb := context.Background()
|
||||
|
||||
ctxt, _ := context.WithTimeout(ctxb, defaultTimeout)
|
||||
err := c.net.SendCoins(ctxt, btcutil.SatoshiPerBitcoin, from)
|
||||
if err != nil {
|
||||
c.t.Fatalf("unable to send coins : %v", err)
|
||||
}
|
||||
|
||||
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
|
||||
chanPoint := openChannelAndAssert(
|
||||
ctxt, c.t, c.net, from, to,
|
||||
lntest.OpenChannelParams{
|
||||
Amt: chanSize,
|
||||
},
|
||||
)
|
||||
|
||||
c.closeChannelFuncs = append(c.closeChannelFuncs, func() {
|
||||
ctxt, _ := context.WithTimeout(ctxb, channelCloseTimeout)
|
||||
closeChannelAndAssert(
|
||||
ctxt, c.t, c.net, from, chanPoint, false,
|
||||
)
|
||||
})
|
||||
|
||||
c.networkChans = append(c.networkChans, chanPoint)
|
||||
}
|
||||
|
||||
func (c *interceptorTestContext) closeChannels() {
|
||||
for _, f := range c.closeChannelFuncs {
|
||||
f()
|
||||
}
|
||||
}
|
||||
|
||||
func (c *interceptorTestContext) shutdownNodes() {
|
||||
shutdownAndAssert(c.net, c.t, c.carol)
|
||||
}
|
||||
|
||||
func (c *interceptorTestContext) waitForChannels() {
|
||||
ctxb := context.Background()
|
||||
|
||||
// Wait for all nodes to have seen all channels.
|
||||
for _, chanPoint := range c.networkChans {
|
||||
for _, node := range c.nodes {
|
||||
txid, err := lnd.GetChanPointFundingTxid(chanPoint)
|
||||
if err != nil {
|
||||
c.t.Fatalf("unable to get txid: %v", err)
|
||||
}
|
||||
point := wire.OutPoint{
|
||||
Hash: *txid,
|
||||
Index: chanPoint.OutputIndex,
|
||||
}
|
||||
|
||||
ctxt, _ := context.WithTimeout(ctxb, defaultTimeout)
|
||||
err = node.WaitForNetworkChannelOpen(ctxt, chanPoint)
|
||||
if err != nil {
|
||||
c.t.Fatalf("(%d): timeout waiting for "+
|
||||
"channel(%s) open: %v",
|
||||
node.NodeID, point, err)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// sendAliceToCarolPayment sends a payment from alice to carol and make an
|
||||
// attempt to pay. The lnrpc.HTLCAttempt is returned.
|
||||
func (c *interceptorTestContext) sendAliceToCarolPayment(ctx context.Context,
|
||||
amtMsat int64, paymentHash []byte) (*lnrpc.HTLCAttempt, error) {
|
||||
|
||||
// Build a route from alice to carol.
|
||||
route, err := c.buildRoute(ctx, amtMsat, []*lntest.HarnessNode{c.bob, c.carol})
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
sendReq := &routerrpc.SendToRouteRequest{
|
||||
PaymentHash: paymentHash,
|
||||
Route: route,
|
||||
}
|
||||
|
||||
// Send the payment.
|
||||
return c.alice.RouterClient.SendToRouteV2(ctx, sendReq)
|
||||
}
|
||||
|
||||
// buildRoute is a helper function to build a route with given hops.
|
||||
func (c *interceptorTestContext) buildRoute(ctx context.Context, amtMsat int64, hops []*lntest.HarnessNode) (
|
||||
*lnrpc.Route, error) {
|
||||
|
||||
rpcHops := make([][]byte, 0, len(hops))
|
||||
for _, hop := range hops {
|
||||
k := hop.PubKeyStr
|
||||
pubkey, err := route.NewVertexFromStr(k)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("error parsing %v: %v",
|
||||
k, err)
|
||||
}
|
||||
rpcHops = append(rpcHops, pubkey[:])
|
||||
}
|
||||
|
||||
req := &routerrpc.BuildRouteRequest{
|
||||
AmtMsat: amtMsat,
|
||||
FinalCltvDelta: lnd.DefaultBitcoinTimeLockDelta,
|
||||
HopPubkeys: rpcHops,
|
||||
}
|
||||
|
||||
routeResp, err := c.alice.RouterClient.BuildRoute(ctx, req)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return routeResp.Route, nil
|
||||
}
|
||||
|
|
@ -14669,6 +14669,10 @@ var testsCases = []*testCase{
|
|||
name: "REST API",
|
||||
test: testRestApi,
|
||||
},
|
||||
{
|
||||
name: "intercept forwarded htlc packets",
|
||||
test: testForwardInterceptor,
|
||||
},
|
||||
}
|
||||
|
||||
// TestLightningNetworkDaemon performs a series of integration tests amongst a
|
||||
|
|
|
|||
|
|
@ -90,12 +90,12 @@
|
|||
<time> [ERR] HSWC: ChannelLink(<chan>): unhandled error while forwarding htlc packet over htlcswitch: insufficient bandwidth to route htlc
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): unhandled error while forwarding htlc packet over htlcswitch: node configured to disallow forwards
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): unhandled error while forwarding htlc packet over htlcswitch: UnknownNextPeer
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): Unhandled error while reforwarding htlc settle/fail over htlcswitch: AmountBelowMinimum(amt=<amt>, update=(lnwire.ChannelUpdate) {
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): Unhandled error while reforwarding htlc settle/fail over htlcswitch: circuit has already been closed
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): Unhandled error while reforwarding htlc settle/fail over htlcswitch: FeeInsufficient(htlc_amt==<amt>, update=(lnwire.ChannelUpdate) {
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): Unhandled error while reforwarding htlc settle/fail over htlcswitch: insufficient bandwidth to route htlc
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): Unhandled error while reforwarding htlc settle/fail over htlcswitch: node configured to disallow forwards
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): Unhandled error while reforwarding htlc settle/fail over htlcswitch: UnknownNextPeer
|
||||
<time> [ERR] HSWC: Unhandled error while reforwarding htlc settle/fail over htlcswitch: AmountBelowMinimum(amt=<amt>, update=(lnwire.ChannelUpdate) {
|
||||
<time> [ERR] HSWC: Unhandled error while reforwarding htlc settle/fail over htlcswitch: circuit has already been closed
|
||||
<time> [ERR] HSWC: Unhandled error while reforwarding htlc settle/fail over htlcswitch: FeeInsufficient(htlc_amt==<amt>, update=(lnwire.ChannelUpdate) {
|
||||
<time> [ERR] HSWC: Unhandled error while reforwarding htlc settle/fail over htlcswitch: insufficient bandwidth to route htlc
|
||||
<time> [ERR] HSWC: Unhandled error while reforwarding htlc settle/fail over htlcswitch: node configured to disallow forwards
|
||||
<time> [ERR] HSWC: Unhandled error while reforwarding htlc settle/fail over htlcswitch: UnknownNextPeer
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): failing link: unable to synchronize channel states: unable to send chan sync message for ChannelPoint(<chan_point>): set tcp <ip>: use of closed network connection with error: unable to resume channel, recovery required
|
||||
<time> [ERR] HSWC: FeeInsufficient(htlc_amt==<amt>, update=(lnwire.ChannelUpdate) {
|
||||
<time> [ERR] HSWC: insufficient bandwidth to route htlc
|
||||
|
|
@ -191,3 +191,4 @@
|
|||
<time> [ERR] FNDG: Unable to advance state(<chan_point>): failed adding to router graph: error sending channel announcement: gossiper is shutting down
|
||||
<time> [ERR] PEER: unable to close channel, ChannelID(<hex>) is unknown
|
||||
<time> [ERR] HSWC: ChannelLink(<chan>): unable to update signals
|
||||
<time> [ERR] RPCS: [/routerrpc.Router/HtlcInterceptor]: rpc error: code = Canceled desc = context canceled
|
||||
2
peer.go
2
peer.go
|
|
@ -660,7 +660,7 @@ func (p *peer) addLink(chanPoint *wire.OutPoint,
|
|||
Registry: p.server.invoices,
|
||||
Switch: p.server.htlcSwitch,
|
||||
Circuits: p.server.htlcSwitch.CircuitModifier(),
|
||||
ForwardPackets: p.server.htlcSwitch.ForwardPackets,
|
||||
ForwardPackets: p.server.interceptableSwitch.ForwardPackets,
|
||||
FwrdingPolicy: *forwardingPolicy,
|
||||
FeeEstimator: p.server.cc.feeEstimator,
|
||||
PreimageCache: p.server.witnessBeacon,
|
||||
|
|
|
|||
15
rpcserver.go
15
rpcserver.go
|
|
@ -549,13 +549,14 @@ func newRPCServer(cfg *Config, s *server, macService *macaroons.Service,
|
|||
|
||||
return info.NodeKey1Bytes, info.NodeKey2Bytes, nil
|
||||
},
|
||||
FindRoute: s.chanRouter.FindRoute,
|
||||
MissionControl: s.missionControl,
|
||||
ActiveNetParams: activeNetParams.Params,
|
||||
Tower: s.controlTower,
|
||||
MaxTotalTimelock: cfg.MaxOutgoingCltvExpiry,
|
||||
DefaultFinalCltvDelta: uint16(cfg.Bitcoin.TimeLockDelta),
|
||||
SubscribeHtlcEvents: s.htlcNotifier.SubscribeHtlcEvents,
|
||||
FindRoute: s.chanRouter.FindRoute,
|
||||
MissionControl: s.missionControl,
|
||||
ActiveNetParams: activeNetParams.Params,
|
||||
Tower: s.controlTower,
|
||||
MaxTotalTimelock: cfg.MaxOutgoingCltvExpiry,
|
||||
DefaultFinalCltvDelta: uint16(cfg.Bitcoin.TimeLockDelta),
|
||||
SubscribeHtlcEvents: s.htlcNotifier.SubscribeHtlcEvents,
|
||||
InterceptableForwarder: s.interceptableSwitch,
|
||||
}
|
||||
|
||||
genInvoiceFeatures := func() *lnwire.FeatureVector {
|
||||
|
|
|
|||
|
|
@ -207,6 +207,8 @@ type server struct {
|
|||
|
||||
htlcSwitch *htlcswitch.Switch
|
||||
|
||||
interceptableSwitch *htlcswitch.InterceptableSwitch
|
||||
|
||||
invoices *invoices.InvoiceRegistry
|
||||
|
||||
channelNotifier *channelnotifier.ChannelNotifier
|
||||
|
|
@ -515,6 +517,7 @@ func newServer(cfg *Config, listenAddrs []net.Addr, chanDB *channeldb.DB,
|
|||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
s.interceptableSwitch = htlcswitch.NewInterceptableSwitch(s.htlcSwitch)
|
||||
|
||||
chanStatusMgrCfg := &netann.ChanStatusConfig{
|
||||
ChanStatusSampleInterval: cfg.ChanStatusSampleInterval,
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user