Merge pull request #8953 from ProofOfKeags/refactor/lnwallet-channel-channel-constraints-partition

[MICRO]: multi: break ChannelConstraints into two sub-structures

chanbackup/single_test.go

@@ -126,6 +126,64 @@ func genRandomOpenChannelShell() (*channeldb.OpenChannel, error) {
 
 	chanType := channeldb.ChannelType(rand.Intn(8))
 
+	localCfg := channeldb.ChannelConfig{
+		ChannelStateBounds: channeldb.ChannelStateBounds{},
+		CommitmentParams: channeldb.CommitmentParams{
+			CsvDelay: uint16(rand.Int63()),
+		},
+		MultiSigKey: keychain.KeyDescriptor{
+			KeyLocator: keychain.KeyLocator{
+				Family: keychain.KeyFamily(rand.Int63()),
+				Index:  uint32(rand.Int63()),
+			},
+		},
+		RevocationBasePoint: keychain.KeyDescriptor{
+			KeyLocator: keychain.KeyLocator{
+				Family: keychain.KeyFamily(rand.Int63()),
+				Index:  uint32(rand.Int63()),
+			},
+		},
+		PaymentBasePoint: keychain.KeyDescriptor{
+			KeyLocator: keychain.KeyLocator{
+				Family: keychain.KeyFamily(rand.Int63()),
+				Index:  uint32(rand.Int63()),
+			},
+		},
+		DelayBasePoint: keychain.KeyDescriptor{
+			KeyLocator: keychain.KeyLocator{
+				Family: keychain.KeyFamily(rand.Int63()),
+				Index:  uint32(rand.Int63()),
+			},
+		},
+		HtlcBasePoint: keychain.KeyDescriptor{
+			KeyLocator: keychain.KeyLocator{
+				Family: keychain.KeyFamily(rand.Int63()),
+				Index:  uint32(rand.Int63()),
+			},
+		},
+	}
+
+	remoteCfg := channeldb.ChannelConfig{
+		CommitmentParams: channeldb.CommitmentParams{
+			CsvDelay: uint16(rand.Int63()),
+		},
+		MultiSigKey: keychain.KeyDescriptor{
+			PubKey: pub,
+		},
+		RevocationBasePoint: keychain.KeyDescriptor{
+			PubKey: pub,
+		},
+		PaymentBasePoint: keychain.KeyDescriptor{
+			PubKey: pub,
+		},
+		DelayBasePoint: keychain.KeyDescriptor{
+			PubKey: pub,
+		},
+		HtlcBasePoint: keychain.KeyDescriptor{
+			PubKey: pub,
+		},
+	}
+
 	return &channeldb.OpenChannel{
 		ChainHash:       chainHash,
 		ChanType:        chanType,
@@ -134,63 +192,10 @@ func genRandomOpenChannelShell() (*channeldb.OpenChannel, error) {
 		ShortChannelID: lnwire.NewShortChanIDFromInt(
 			uint64(rand.Int63()),
 		),
-		ThawHeight:  rand.Uint32(),
+		ThawHeight:         rand.Uint32(),
-		IdentityPub: pub,
+		IdentityPub:        pub,
-		LocalChanCfg: channeldb.ChannelConfig{
+		LocalChanCfg:       localCfg,
-			ChannelConstraints: channeldb.ChannelConstraints{
+		RemoteChanCfg:      remoteCfg,
-				CsvDelay: uint16(rand.Int63()),
-			},
-			MultiSigKey: keychain.KeyDescriptor{
-				KeyLocator: keychain.KeyLocator{
-					Family: keychain.KeyFamily(rand.Int63()),
-					Index:  uint32(rand.Int63()),
-				},
-			},
-			RevocationBasePoint: keychain.KeyDescriptor{
-				KeyLocator: keychain.KeyLocator{
-					Family: keychain.KeyFamily(rand.Int63()),
-					Index:  uint32(rand.Int63()),
-				},
-			},
-			PaymentBasePoint: keychain.KeyDescriptor{
-				KeyLocator: keychain.KeyLocator{
-					Family: keychain.KeyFamily(rand.Int63()),
-					Index:  uint32(rand.Int63()),
-				},
-			},
-			DelayBasePoint: keychain.KeyDescriptor{
-				KeyLocator: keychain.KeyLocator{
-					Family: keychain.KeyFamily(rand.Int63()),
-					Index:  uint32(rand.Int63()),
-				},
-			},
-			HtlcBasePoint: keychain.KeyDescriptor{
-				KeyLocator: keychain.KeyLocator{
-					Family: keychain.KeyFamily(rand.Int63()),
-					Index:  uint32(rand.Int63()),
-				},
-			},
-		},
-		RemoteChanCfg: channeldb.ChannelConfig{
-			ChannelConstraints: channeldb.ChannelConstraints{
-				CsvDelay: uint16(rand.Int63()),
-			},
-			MultiSigKey: keychain.KeyDescriptor{
-				PubKey: pub,
-			},
-			RevocationBasePoint: keychain.KeyDescriptor{
-				PubKey: pub,
-			},
-			PaymentBasePoint: keychain.KeyDescriptor{
-				PubKey: pub,
-			},
-			DelayBasePoint: keychain.KeyDescriptor{
-				PubKey: pub,
-			},
-			HtlcBasePoint: keychain.KeyDescriptor{
-				PubKey: pub,
-			},
-		},
 		RevocationProducer: shaChainProducer,
 	}, nil
 }

channeldb/channel.go

@@ -395,19 +395,11 @@ func (c ChannelType) IsTaproot() bool {
 	return c&SimpleTaprootFeatureBit == SimpleTaprootFeatureBit
 }
 
-// ChannelConstraints represents a set of constraints meant to allow a node to
+// ChannelStateBounds are the parameters from OpenChannel and AcceptChannel
-// limit their exposure, enact flow control and ensure that all HTLCs are
+// that are responsible for providing bounds on the state space of the abstract
-// economically relevant. This struct will be mirrored for both sides of the
+// channel state. These values must be remembered for normal channel operation
-// channel, as each side will enforce various constraints that MUST be adhered
+// but they do not impact how we compute the commitment transactions themselves.
-// to for the life time of the channel. The parameters for each of these
+type ChannelStateBounds struct {
-// constraints are static for the duration of the channel, meaning the channel
-// must be torn down for them to change.
-type ChannelConstraints struct {
-	// DustLimit is the threshold (in satoshis) below which any outputs
-	// should be trimmed. When an output is trimmed, it isn't materialized
-	// as an actual output, but is instead burned to miner's fees.
-	DustLimit btcutil.Amount
-
 	// ChanReserve is an absolute reservation on the channel for the
 	// owner of this set of constraints. This means that the current
 	// settled balance for this node CANNOT dip below the reservation
@@ -433,6 +425,19 @@ type ChannelConstraints struct {
 	// acted upon in the case of a unilateral channel closure or a contract
 	// breach.
 	MaxAcceptedHtlcs uint16
+}
+
+// CommitmentParams are the parameters from OpenChannel and
+// AcceptChannel that are required to render an abstract channel state to a
+// concrete commitment transaction. These values are necessary to (re)compute
+// the commitment transaction. We treat these differently than the state space
+// bounds because their history needs to be stored in order to properly handle
+// chain resolution.
+type CommitmentParams struct {
+	// DustLimit is the threshold (in satoshis) below which any outputs
+	// should be trimmed. When an output is trimmed, it isn't materialized
+	// as an actual output, but is instead burned to miner's fees.
+	DustLimit btcutil.Amount
 
 	// CsvDelay is the relative time lock delay expressed in blocks. Any
 	// settled outputs that pay to the owner of this channel configuration
@@ -448,12 +453,17 @@ type ChannelConstraints struct {
 // nature of HTLC's allotted, the keys to be used for delivery, and relative
 // time lock parameters.
 type ChannelConfig struct {
-	// ChannelConstraints is the set of constraints that must be upheld for
+	// ChannelStateBounds is the set of constraints that must be
-	// the duration of the channel for the owner of this channel
+	// upheld for the duration of the channel for the owner of this channel
 	// configuration. Constraints govern a number of flow control related
 	// parameters, also including the smallest HTLC that will be accepted
 	// by a participant.
-	ChannelConstraints
+	ChannelStateBounds
+
+	// CommitmentParams is an embedding of the parameters
+	// required to render an abstract channel state into a concrete
+	// commitment transaction.
+	CommitmentParams
 
 	// MultiSigKey is the key to be used within the 2-of-2 output script
 	// for the owner of this channel config.

channeldb/channel_test.go

@@ -235,15 +235,21 @@ func createTestChannelState(t *testing.T, cdb *ChannelStateDB) *OpenChannel {
 		}
 	}
 
+	localStateBounds := ChannelStateBounds{
+		MaxPendingAmount: lnwire.MilliSatoshi(rand.Int63()),
+		ChanReserve:      btcutil.Amount(rand.Int63()),
+		MinHTLC:          lnwire.MilliSatoshi(rand.Int63()),
+		MaxAcceptedHtlcs: uint16(rand.Int31()),
+	}
+
+	localRenderingParams := CommitmentParams{
+		DustLimit: btcutil.Amount(rand.Int63()),
+		CsvDelay:  uint16(rand.Int31()),
+	}
+
 	localCfg := ChannelConfig{
-		ChannelConstraints: ChannelConstraints{
+		ChannelStateBounds: localStateBounds,
-			DustLimit:        btcutil.Amount(rand.Int63()),
+		CommitmentParams:   localRenderingParams,
-			MaxPendingAmount: lnwire.MilliSatoshi(rand.Int63()),
-			ChanReserve:      btcutil.Amount(rand.Int63()),
-			MinHTLC:          lnwire.MilliSatoshi(rand.Int63()),
-			MaxAcceptedHtlcs: uint16(rand.Int31()),
-			CsvDelay:         uint16(rand.Int31()),
-		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: privKey.PubKey(),
 		},
@@ -260,15 +266,22 @@ func createTestChannelState(t *testing.T, cdb *ChannelStateDB) *OpenChannel {
 			PubKey: privKey.PubKey(),
 		},
 	}
+
+	remoteStateBounds := ChannelStateBounds{
+		MaxPendingAmount: lnwire.MilliSatoshi(rand.Int63()),
+		ChanReserve:      btcutil.Amount(rand.Int63()),
+		MinHTLC:          lnwire.MilliSatoshi(rand.Int63()),
+		MaxAcceptedHtlcs: uint16(rand.Int31()),
+	}
+
+	remoteRenderingParams := CommitmentParams{
+		DustLimit: btcutil.Amount(rand.Int63()),
+		CsvDelay:  uint16(rand.Int31()),
+	}
+
 	remoteCfg := ChannelConfig{
-		ChannelConstraints: ChannelConstraints{
+		ChannelStateBounds: remoteStateBounds,
-			DustLimit:        btcutil.Amount(rand.Int63()),
+		CommitmentParams:   remoteRenderingParams,
-			MaxPendingAmount: lnwire.MilliSatoshi(rand.Int63()),
-			ChanReserve:      btcutil.Amount(rand.Int63()),
-			MinHTLC:          lnwire.MilliSatoshi(rand.Int63()),
-			MaxAcceptedHtlcs: uint16(rand.Int31()),
-			CsvDelay:         uint16(rand.Int31()),
-		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: privKey.PubKey(),
 			KeyLocator: keychain.KeyLocator{

channeldb/db_test.go

@@ -292,6 +292,10 @@ func genRandomChannelShell() (*ChannelShell, error) {
 	}
 	shaChainProducer := shachain.NewRevocationProducer(*revRoot)
 
+	commitParams := CommitmentParams{
+		CsvDelay: uint16(rand.Int63()),
+	}
+
 	return &ChannelShell{
 		NodeAddrs: []net.Addr{&net.TCPAddr{
 			IP:   net.ParseIP("127.0.0.1"),
@@ -306,9 +310,7 @@ func genRandomChannelShell() (*ChannelShell, error) {
 			),
 			IdentityPub: pub,
 			LocalChanCfg: ChannelConfig{
-				ChannelConstraints: ChannelConstraints{
+				CommitmentParams: commitParams,
-					CsvDelay: uint16(rand.Int63()),
-				},
 				PaymentBasePoint: keychain.KeyDescriptor{
 					KeyLocator: keychain.KeyLocator{
 						Family: keychain.KeyFamily(rand.Int63()),

contractcourt/breach_arbitrator_test.go

@@ -2178,13 +2178,15 @@ func createInitChannels(t *testing.T) (
 	fundingTxIn := wire.NewTxIn(prevOut, nil, nil)
 
 	aliceCfg := channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
-			DustLimit:        aliceDustLimit,
 			MaxPendingAmount: lnwire.MilliSatoshi(rand.Int63()),
 			ChanReserve:      0,
 			MinHTLC:          0,
 			MaxAcceptedHtlcs: uint16(rand.Int31()),
-			CsvDelay:         uint16(csvTimeoutAlice),
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: aliceDustLimit,
+			CsvDelay:  uint16(csvTimeoutAlice),
 		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: aliceKeyPub,
@@ -2203,13 +2205,15 @@ func createInitChannels(t *testing.T) (
 		},
 	}
 	bobCfg := channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
-			DustLimit:        bobDustLimit,
 			MaxPendingAmount: lnwire.MilliSatoshi(rand.Int63()),
 			ChanReserve:      0,
 			MinHTLC:          0,
 			MaxAcceptedHtlcs: uint16(rand.Int31()),
-			CsvDelay:         uint16(csvTimeoutBob),
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: bobDustLimit,
+			CsvDelay:  uint16(csvTimeoutBob),
 		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: bobKeyPub,

funding/manager.go

@@ -1671,16 +1671,18 @@ func (f *Manager) fundeeProcessOpenChannel(peer lnpeer.Peer,
 
 	// We'll also validate and apply all the constraints the initiating
 	// party is attempting to dictate for our commitment transaction.
-	channelConstraints := &channeldb.ChannelConstraints{
+	stateBounds := &channeldb.ChannelStateBounds{
-		DustLimit:        msg.DustLimit,
 		ChanReserve:      msg.ChannelReserve,
 		MaxPendingAmount: msg.MaxValueInFlight,
 		MinHTLC:          msg.HtlcMinimum,
 		MaxAcceptedHtlcs: msg.MaxAcceptedHTLCs,
-		CsvDelay:         msg.CsvDelay,
+	}
+	commitParams := &channeldb.CommitmentParams{
+		DustLimit: msg.DustLimit,
+		CsvDelay:  msg.CsvDelay,
 	}
 	err = reservation.CommitConstraints(
-		channelConstraints, f.cfg.MaxLocalCSVDelay, true,
+		stateBounds, commitParams, f.cfg.MaxLocalCSVDelay, true,
 	)
 	if err != nil {
 		log.Errorf("Unacceptable channel constraints: %v", err)
@@ -1780,7 +1782,7 @@ func (f *Manager) fundeeProcessOpenChannel(peer lnpeer.Peer,
 	// interactively.
 	ourContribution := reservation.OurContribution()
 	forwardingPolicy := f.defaultForwardingPolicy(
-		ourContribution.ChannelConstraints,
+		ourContribution.ChannelStateBounds,
 	)
 
 	// Once the reservation has been created successfully, we add it to
@@ -1810,37 +1812,41 @@ func (f *Manager) fundeeProcessOpenChannel(peer lnpeer.Peer,
 	// Update the timestamp once the fundingOpenMsg has been handled.
 	defer resCtx.updateTimestamp()
 
+	cfg := channeldb.ChannelConfig{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
+			MaxPendingAmount: remoteMaxValue,
+			ChanReserve:      chanReserve,
+			MinHTLC:          minHtlc,
+			MaxAcceptedHtlcs: maxHtlcs,
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: msg.DustLimit,
+			CsvDelay:  remoteCsvDelay,
+		},
+		MultiSigKey: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.FundingKey),
+		},
+		RevocationBasePoint: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.RevocationPoint),
+		},
+		PaymentBasePoint: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.PaymentPoint),
+		},
+		DelayBasePoint: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.DelayedPaymentPoint),
+		},
+		HtlcBasePoint: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.HtlcPoint),
+		},
+	}
+
 	// With our parameters set, we'll now process their contribution so we
 	// can move the funding workflow ahead.
 	remoteContribution := &lnwallet.ChannelContribution{
 		FundingAmount:        amt,
 		FirstCommitmentPoint: msg.FirstCommitmentPoint,
-		ChannelConfig: &channeldb.ChannelConfig{
+		ChannelConfig:        &cfg,
-			ChannelConstraints: channeldb.ChannelConstraints{
+		UpfrontShutdown:      msg.UpfrontShutdownScript,
-				DustLimit:        msg.DustLimit,
-				MaxPendingAmount: remoteMaxValue,
-				ChanReserve:      chanReserve,
-				MinHTLC:          minHtlc,
-				MaxAcceptedHtlcs: maxHtlcs,
-				CsvDelay:         remoteCsvDelay,
-			},
-			MultiSigKey: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.FundingKey),
-			},
-			RevocationBasePoint: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.RevocationPoint),
-			},
-			PaymentBasePoint: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.PaymentPoint),
-			},
-			DelayBasePoint: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.DelayedPaymentPoint),
-			},
-			HtlcBasePoint: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.HtlcPoint),
-			},
-		},
-		UpfrontShutdown: msg.UpfrontShutdownScript,
 	}
 
 	if resCtx.reservation.IsTaproot() {
@@ -1867,8 +1873,12 @@ func (f *Manager) fundeeProcessOpenChannel(peer lnpeer.Peer,
 
 	log.Infof("Sending fundingResp for pending_id(%x)",
 		msg.PendingChannelID)
-	log.Debugf("Remote party accepted commitment constraints: %v",
+	bounds := remoteContribution.ChannelConfig.ChannelStateBounds
-		spew.Sdump(remoteContribution.ChannelConfig.ChannelConstraints))
+	log.Debugf("Remote party accepted channel state space bounds: %v",
+		lnutils.SpewLogClosure(bounds))
+	params := remoteContribution.ChannelConfig.CommitmentParams
+	log.Debugf("Remote party accepted commitment rendering params: %v",
+		lnutils.SpewLogClosure(params))
 
 	// With the initiator's contribution recorded, respond with our
 	// contribution in the next message of the workflow.
@@ -2036,16 +2046,18 @@ func (f *Manager) funderProcessAcceptChannel(peer lnpeer.Peer,
 	// required confirmations, and also the set of channel constraints
 	// they've specified for commitment states we can create.
 	resCtx.reservation.SetNumConfsRequired(uint16(minDepth))
-	channelConstraints := &channeldb.ChannelConstraints{
+	bounds := channeldb.ChannelStateBounds{
-		DustLimit:        msg.DustLimit,
 		ChanReserve:      msg.ChannelReserve,
 		MaxPendingAmount: msg.MaxValueInFlight,
 		MinHTLC:          msg.HtlcMinimum,
 		MaxAcceptedHtlcs: msg.MaxAcceptedHTLCs,
-		CsvDelay:         msg.CsvDelay,
+	}
+	commitParams := channeldb.CommitmentParams{
+		DustLimit: msg.DustLimit,
+		CsvDelay:  msg.CsvDelay,
 	}
 	err = resCtx.reservation.CommitConstraints(
-		channelConstraints, resCtx.maxLocalCsv, false,
+		&bounds, &commitParams, resCtx.maxLocalCsv, false,
 	)
 	if err != nil {
 		log.Warnf("Unacceptable channel constraints: %v", err)
@@ -2053,38 +2065,42 @@ func (f *Manager) funderProcessAcceptChannel(peer lnpeer.Peer,
 		return
 	}
 
+	cfg := channeldb.ChannelConfig{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
+			MaxPendingAmount: resCtx.remoteMaxValue,
+			ChanReserve:      resCtx.remoteChanReserve,
+			MinHTLC:          resCtx.remoteMinHtlc,
+			MaxAcceptedHtlcs: resCtx.remoteMaxHtlcs,
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: msg.DustLimit,
+			CsvDelay:  resCtx.remoteCsvDelay,
+		},
+		MultiSigKey: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.FundingKey),
+		},
+		RevocationBasePoint: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.RevocationPoint),
+		},
+		PaymentBasePoint: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.PaymentPoint),
+		},
+		DelayBasePoint: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.DelayedPaymentPoint),
+		},
+		HtlcBasePoint: keychain.KeyDescriptor{
+			PubKey: copyPubKey(msg.HtlcPoint),
+		},
+	}
+
 	// The remote node has responded with their portion of the channel
 	// contribution. At this point, we can process their contribution which
 	// allows us to construct and sign both the commitment transaction, and
 	// the funding transaction.
 	remoteContribution := &lnwallet.ChannelContribution{
 		FirstCommitmentPoint: msg.FirstCommitmentPoint,
-		ChannelConfig: &channeldb.ChannelConfig{
+		ChannelConfig:        &cfg,
-			ChannelConstraints: channeldb.ChannelConstraints{
+		UpfrontShutdown:      msg.UpfrontShutdownScript,
-				DustLimit:        msg.DustLimit,
-				MaxPendingAmount: resCtx.remoteMaxValue,
-				ChanReserve:      resCtx.remoteChanReserve,
-				MinHTLC:          resCtx.remoteMinHtlc,
-				MaxAcceptedHtlcs: resCtx.remoteMaxHtlcs,
-				CsvDelay:         resCtx.remoteCsvDelay,
-			},
-			MultiSigKey: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.FundingKey),
-			},
-			RevocationBasePoint: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.RevocationPoint),
-			},
-			PaymentBasePoint: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.PaymentPoint),
-			},
-			DelayBasePoint: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.DelayedPaymentPoint),
-			},
-			HtlcBasePoint: keychain.KeyDescriptor{
-				PubKey: copyPubKey(msg.HtlcPoint),
-			},
-		},
-		UpfrontShutdown: msg.UpfrontShutdownScript,
 	}
 
 	if resCtx.reservation.IsTaproot() {
@@ -2149,8 +2165,12 @@ func (f *Manager) funderProcessAcceptChannel(peer lnpeer.Peer,
 	log.Infof("pendingChan(%x): remote party proposes num_confs=%v, "+
 		"csv_delay=%v", pendingChanID[:], msg.MinAcceptDepth,
 		msg.CsvDelay)
-	log.Debugf("Remote party accepted commitment constraints: %v",
+	bounds = remoteContribution.ChannelConfig.ChannelStateBounds
-		spew.Sdump(remoteContribution.ChannelConfig.ChannelConstraints))
+	log.Debugf("Remote party accepted channel state space bounds: %v",
+		lnutils.SpewLogClosure(bounds))
+	commitParams = remoteContribution.ChannelConfig.CommitmentParams
+	log.Debugf("Remote party accepted commitment rendering params: %v",
+		lnutils.SpewLogClosure(commitParams))
 
 	// If the user requested funding through a PSBT, we cannot directly
 	// continue now and need to wait for the fully funded and signed PSBT
@@ -4070,7 +4090,7 @@ func (f *Manager) ensureInitialForwardingPolicy(chanID lnwire.ChannelID,
 			"falling back to default values: %v", err)
 
 		forwardingPolicy = f.defaultForwardingPolicy(
-			channel.LocalChanCfg.ChannelConstraints,
+			channel.LocalChanCfg.ChannelStateBounds,
 		)
 		needDBUpdate = true
 	}
@@ -4695,7 +4715,7 @@ func (f *Manager) handleInitFundingMsg(msg *InitFundingMsg) {
 	// useBaseFee or useFeeRate are false the client did not provide fee
 	// values hence we assume default fee settings from the config.
 	forwardingPolicy := f.defaultForwardingPolicy(
-		ourContribution.ChannelConstraints,
+		ourContribution.ChannelStateBounds,
 	)
 	if baseFee != nil {
 		forwardingPolicy.BaseFee = lnwire.MilliSatoshi(*baseFee)
@@ -4750,16 +4770,18 @@ func (f *Manager) handleInitFundingMsg(msg *InitFundingMsg) {
 	defer resCtx.updateTimestamp()
 
 	// Check the sanity of the selected channel constraints.
-	channelConstraints := &channeldb.ChannelConstraints{
+	bounds := &channeldb.ChannelStateBounds{
-		DustLimit:        ourDustLimit,
 		ChanReserve:      chanReserve,
 		MaxPendingAmount: maxValue,
 		MinHTLC:          minHtlcIn,
 		MaxAcceptedHtlcs: maxHtlcs,
-		CsvDelay:         remoteCsvDelay,
+	}
+	commitParams := &channeldb.CommitmentParams{
+		DustLimit: ourDustLimit,
+		CsvDelay:  remoteCsvDelay,
 	}
 	err = lnwallet.VerifyConstraints(
-		channelConstraints, resCtx.maxLocalCsv, capacity,
+		bounds, commitParams, resCtx.maxLocalCsv, capacity,
 	)
 	if err != nil {
 		_, reserveErr := f.cancelReservationCtx(peerKey, chanID, false)
@@ -5032,11 +5054,11 @@ func copyPubKey(pub *btcec.PublicKey) *btcec.PublicKey {
 // defaultForwardingPolicy returns the default forwarding policy based on the
 // default routing policy and our local channel constraints.
 func (f *Manager) defaultForwardingPolicy(
-	constraints channeldb.ChannelConstraints) *models.ForwardingPolicy {
+	bounds channeldb.ChannelStateBounds) *models.ForwardingPolicy {
 
 	return &models.ForwardingPolicy{
-		MinHTLCOut:    constraints.MinHTLC,
+		MinHTLCOut:    bounds.MinHTLC,
-		MaxHTLC:       constraints.MaxPendingAmount,
+		MaxHTLC:       bounds.MaxPendingAmount,
 		BaseFee:       f.cfg.DefaultRoutingPolicy.BaseFee,
 		FeeRate:       f.cfg.DefaultRoutingPolicy.FeeRate,
 		TimeLockDelta: f.cfg.DefaultRoutingPolicy.TimeLockDelta,

htlcswitch/test_utils.go

@@ -138,24 +138,28 @@ func createTestChannel(t *testing.T, alicePrivKey, bobPrivKey []byte,
 	csvTimeoutBob := uint32(4)
 	isAliceInitiator := true
 
-	aliceConstraints := &channeldb.ChannelConstraints{
+	aliceBounds := channeldb.ChannelStateBounds{
-		DustLimit: btcutil.Amount(200),
 		MaxPendingAmount: lnwire.NewMSatFromSatoshis(
 			channelCapacity),
 		ChanReserve:      aliceReserve,
 		MinHTLC:          0,
 		MaxAcceptedHtlcs: input.MaxHTLCNumber / 2,
-		CsvDelay:         uint16(csvTimeoutAlice),
+	}
+	aliceCommitParams := channeldb.CommitmentParams{
+		DustLimit: btcutil.Amount(200),
+		CsvDelay:  uint16(csvTimeoutAlice),
 	}
 
-	bobConstraints := &channeldb.ChannelConstraints{
+	bobBounds := channeldb.ChannelStateBounds{
-		DustLimit: btcutil.Amount(800),
 		MaxPendingAmount: lnwire.NewMSatFromSatoshis(
 			channelCapacity),
 		ChanReserve:      bobReserve,
 		MinHTLC:          0,
 		MaxAcceptedHtlcs: input.MaxHTLCNumber / 2,
-		CsvDelay:         uint16(csvTimeoutBob),
+	}
+	bobCommitParams := channeldb.CommitmentParams{
+		DustLimit: btcutil.Amount(800),
+		CsvDelay:  uint16(csvTimeoutBob),
 	}
 
 	var hash [sha256.Size]byte
@@ -172,7 +176,8 @@ func createTestChannel(t *testing.T, alicePrivKey, bobPrivKey []byte,
 	fundingTxIn := wire.NewTxIn(prevOut, nil, nil)
 
 	aliceCfg := channeldb.ChannelConfig{
-		ChannelConstraints: *aliceConstraints,
+		ChannelStateBounds: aliceBounds,
+		CommitmentParams:   aliceCommitParams,
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: aliceKeyPub,
 		},
@@ -190,7 +195,8 @@ func createTestChannel(t *testing.T, alicePrivKey, bobPrivKey []byte,
 		},
 	}
 	bobCfg := channeldb.ChannelConfig{
-		ChannelConstraints: *bobConstraints,
+		ChannelStateBounds: bobBounds,
+		CommitmentParams:   bobCommitParams,
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: bobKeyPub,
 		},

lnwallet/reservation.go

@@ -501,29 +501,34 @@ func (r *ChannelReservation) IsTaproot() bool {
 // of satoshis that can be transferred in a single commitment. This function
 // will also attempt to verify the constraints for sanity, returning an error
 // if the parameters are seemed unsound.
-func (r *ChannelReservation) CommitConstraints(c *channeldb.ChannelConstraints,
+func (r *ChannelReservation) CommitConstraints(
-	maxLocalCSVDelay uint16, responder bool) error {
+	bounds *channeldb.ChannelStateBounds,
+	commitParams *channeldb.CommitmentParams,
+	maxLocalCSVDelay uint16,
+	responder bool) error {
 
 	r.Lock()
 	defer r.Unlock()
 
 	// First, verify the sanity of the channel constraints.
-	err := VerifyConstraints(c, maxLocalCSVDelay, r.partialState.Capacity)
+	err := VerifyConstraints(
+		bounds, commitParams, maxLocalCSVDelay, r.partialState.Capacity,
+	)
 	if err != nil {
 		return err
 	}
 
 	// Our dust limit should always be less than or equal to our proposed
 	// channel reserve.
-	if responder && r.ourContribution.DustLimit > c.ChanReserve {
+	if responder && r.ourContribution.DustLimit > bounds.ChanReserve {
-		r.ourContribution.DustLimit = c.ChanReserve
+		r.ourContribution.DustLimit = bounds.ChanReserve
 	}
 
-	r.ourContribution.ChanReserve = c.ChanReserve
+	r.ourContribution.ChanReserve = bounds.ChanReserve
-	r.ourContribution.MaxPendingAmount = c.MaxPendingAmount
+	r.ourContribution.MaxPendingAmount = bounds.MaxPendingAmount
-	r.ourContribution.MinHTLC = c.MinHTLC
+	r.ourContribution.MinHTLC = bounds.MinHTLC
-	r.ourContribution.MaxAcceptedHtlcs = c.MaxAcceptedHtlcs
+	r.ourContribution.MaxAcceptedHtlcs = bounds.MaxAcceptedHtlcs
-	r.ourContribution.CsvDelay = c.CsvDelay
+	r.ourContribution.CsvDelay = commitParams.CsvDelay
 
 	return nil
 }
@@ -805,62 +810,75 @@ func (r *ChannelReservation) Cancel() error {
 
 // VerifyConstraints is a helper function that can be used to check the sanity
 // of various channel constraints.
-func VerifyConstraints(c *channeldb.ChannelConstraints,
+func VerifyConstraints(bounds *channeldb.ChannelStateBounds,
-	maxLocalCSVDelay uint16, channelCapacity btcutil.Amount) error {
+	commitParams *channeldb.CommitmentParams, maxLocalCSVDelay uint16,
+	channelCapacity btcutil.Amount) error {
 
 	// Fail if the csv delay for our funds exceeds our maximum.
-	if c.CsvDelay > maxLocalCSVDelay {
+	if commitParams.CsvDelay > maxLocalCSVDelay {
-		return ErrCsvDelayTooLarge(c.CsvDelay, maxLocalCSVDelay)
+		return ErrCsvDelayTooLarge(
+			commitParams.CsvDelay, maxLocalCSVDelay,
+		)
 	}
 
 	// The channel reserve should always be greater or equal to the dust
 	// limit. The reservation request should be denied if otherwise.
-	if c.DustLimit > c.ChanReserve {
+	if commitParams.DustLimit > bounds.ChanReserve {
-		return ErrChanReserveTooSmall(c.ChanReserve, c.DustLimit)
+		return ErrChanReserveTooSmall(
+			bounds.ChanReserve, commitParams.DustLimit,
+		)
 	}
 
 	// Validate against the maximum-sized witness script dust limit, and
 	// also ensure that the DustLimit is not too large.
 	maxWitnessLimit := DustLimitForSize(input.UnknownWitnessSize)
-	if c.DustLimit < maxWitnessLimit || c.DustLimit > 3*maxWitnessLimit {
+	if commitParams.DustLimit < maxWitnessLimit ||
-		return ErrInvalidDustLimit(c.DustLimit)
+		commitParams.DustLimit > 3*maxWitnessLimit {
+
+		return ErrInvalidDustLimit(commitParams.DustLimit)
 	}
 
 	// Fail if we consider the channel reserve to be too large.  We
 	// currently fail if it is greater than 20% of the channel capacity.
 	maxChanReserve := channelCapacity / 5
-	if c.ChanReserve > maxChanReserve {
+	if bounds.ChanReserve > maxChanReserve {
-		return ErrChanReserveTooLarge(c.ChanReserve, maxChanReserve)
+		return ErrChanReserveTooLarge(
+			bounds.ChanReserve, maxChanReserve,
+		)
 	}
 
 	// Fail if the minimum HTLC value is too large. If this is too large,
 	// the channel won't be useful for sending small payments. This limit
 	// is currently set to maxValueInFlight, effectively letting the remote
 	// setting this as large as it wants.
-	if c.MinHTLC > c.MaxPendingAmount {
+	if bounds.MinHTLC > bounds.MaxPendingAmount {
-		return ErrMinHtlcTooLarge(c.MinHTLC, c.MaxPendingAmount)
+		return ErrMinHtlcTooLarge(
+			bounds.MinHTLC, bounds.MaxPendingAmount,
+		)
 	}
 
 	// Fail if maxHtlcs is above the maximum allowed number of 483.  This
 	// number is specified in BOLT-02.
-	if c.MaxAcceptedHtlcs > uint16(input.MaxHTLCNumber/2) {
+	if bounds.MaxAcceptedHtlcs > uint16(input.MaxHTLCNumber/2) {
 		return ErrMaxHtlcNumTooLarge(
-			c.MaxAcceptedHtlcs, uint16(input.MaxHTLCNumber/2),
+			bounds.MaxAcceptedHtlcs, uint16(input.MaxHTLCNumber/2),
 		)
 	}
 
 	// Fail if we consider maxHtlcs too small. If this is too small we
 	// cannot offer many HTLCs to the remote.
 	const minNumHtlc = 5
-	if c.MaxAcceptedHtlcs < minNumHtlc {
+	if bounds.MaxAcceptedHtlcs < minNumHtlc {
-		return ErrMaxHtlcNumTooSmall(c.MaxAcceptedHtlcs, minNumHtlc)
+		return ErrMaxHtlcNumTooSmall(
+			bounds.MaxAcceptedHtlcs, minNumHtlc,
+		)
 	}
 
 	// Fail if we consider maxValueInFlight too small. We currently require
 	// the remote to at least allow minNumHtlc * minHtlc in flight.
-	if c.MaxPendingAmount < minNumHtlc*c.MinHTLC {
+	if bounds.MaxPendingAmount < minNumHtlc*bounds.MinHTLC {
 		return ErrMaxValueInFlightTooSmall(
-			c.MaxPendingAmount, minNumHtlc*c.MinHTLC,
+			bounds.MaxPendingAmount, minNumHtlc*bounds.MinHTLC,
 		)
 	}
 

lnwallet/test/test_interface.go

@@ -422,16 +422,18 @@ func testDualFundingReservationWorkflow(miner *rpctest.Harness,
 	aliceChanReservation, err := alice.InitChannelReservation(aliceReq)
 	require.NoError(t, err, "unable to initialize funding reservation")
 	aliceChanReservation.SetNumConfsRequired(numReqConfs)
-	channelConstraints := &channeldb.ChannelConstraints{
+	bounds := &channeldb.ChannelStateBounds{
-		DustLimit:        lnwallet.DustLimitUnknownWitness(),
 		ChanReserve:      fundingAmount / 100,
 		MaxPendingAmount: lnwire.NewMSatFromSatoshis(fundingAmount),
 		MinHTLC:          1,
 		MaxAcceptedHtlcs: input.MaxHTLCNumber / 2,
-		CsvDelay:         csvDelay,
+	}
+	commitParams := &channeldb.CommitmentParams{
+		DustLimit: lnwallet.DustLimitUnknownWitness(),
+		CsvDelay:  csvDelay,
 	}
 	err = aliceChanReservation.CommitConstraints(
-		channelConstraints, defaultMaxLocalCsvDelay, false,
+		bounds, commitParams, defaultMaxLocalCsvDelay, false,
 	)
 	require.NoError(t, err, "unable to verify constraints")
 
@@ -463,7 +465,7 @@ func testDualFundingReservationWorkflow(miner *rpctest.Harness,
 	bobChanReservation, err := bob.InitChannelReservation(bobReq)
 	require.NoError(t, err, "bob unable to init channel reservation")
 	err = bobChanReservation.CommitConstraints(
-		channelConstraints, defaultMaxLocalCsvDelay, true,
+		bounds, commitParams, defaultMaxLocalCsvDelay, true,
 	)
 	require.NoError(t, err, "unable to verify constraints")
 	bobChanReservation.SetNumConfsRequired(numReqConfs)
@@ -827,16 +829,18 @@ func testSingleFunderReservationWorkflow(miner *rpctest.Harness,
 	aliceChanReservation, err := alice.InitChannelReservation(aliceReq)
 	require.NoError(t, err, "unable to init channel reservation")
 	aliceChanReservation.SetNumConfsRequired(numReqConfs)
-	channelConstraints := &channeldb.ChannelConstraints{
+	bounds := &channeldb.ChannelStateBounds{
-		DustLimit:        lnwallet.DustLimitUnknownWitness(),
 		ChanReserve:      fundingAmt / 100,
 		MaxPendingAmount: lnwire.NewMSatFromSatoshis(fundingAmt),
 		MinHTLC:          1,
 		MaxAcceptedHtlcs: input.MaxHTLCNumber / 2,
-		CsvDelay:         csvDelay,
+	}
+	commitParams := &channeldb.CommitmentParams{
+		DustLimit: lnwallet.DustLimitUnknownWitness(),
+		CsvDelay:  csvDelay,
 	}
 	err = aliceChanReservation.CommitConstraints(
-		channelConstraints, defaultMaxLocalCsvDelay, false,
+		bounds, commitParams, defaultMaxLocalCsvDelay, false,
 	)
 	require.NoError(t, err, "unable to verify constraints")
 
@@ -875,7 +879,7 @@ func testSingleFunderReservationWorkflow(miner *rpctest.Harness,
 	bobChanReservation, err := bob.InitChannelReservation(bobReq)
 	require.NoError(t, err, "unable to create bob reservation")
 	err = bobChanReservation.CommitConstraints(
-		channelConstraints, defaultMaxLocalCsvDelay, true,
+		bounds, commitParams, defaultMaxLocalCsvDelay, true,
 	)
 	require.NoError(t, err, "unable to verify constraints")
 	bobChanReservation.SetNumConfsRequired(numReqConfs)

lnwallet/test_utils.go

@@ -150,13 +150,15 @@ func CreateTestChannels(t *testing.T, chanType channeldb.ChannelType,
 	}
 
 	aliceCfg := channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
-			DustLimit:        aliceDustLimit,
 			MaxPendingAmount: lnwire.NewMSatFromSatoshis(channelCapacity),
 			ChanReserve:      channelCapacity / 100,
 			MinHTLC:          0,
 			MaxAcceptedHtlcs: input.MaxHTLCNumber / 2,
-			CsvDelay:         uint16(csvTimeoutAlice),
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: aliceDustLimit,
+			CsvDelay:  uint16(csvTimeoutAlice),
 		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: aliceKeys[0].PubKey(),
@@ -175,13 +177,15 @@ func CreateTestChannels(t *testing.T, chanType channeldb.ChannelType,
 		},
 	}
 	bobCfg := channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
-			DustLimit:        bobDustLimit,
 			MaxPendingAmount: lnwire.NewMSatFromSatoshis(channelCapacity),
 			ChanReserve:      channelCapacity / 100,
 			MinHTLC:          0,
 			MaxAcceptedHtlcs: input.MaxHTLCNumber / 2,
-			CsvDelay:         uint16(csvTimeoutBob),
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: bobDustLimit,
+			CsvDelay:  uint16(csvTimeoutBob),
 		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: bobKeys[0].PubKey(),

lnwallet/transactions_test.go

@@ -603,14 +603,14 @@ func testSpendValidation(t *testing.T, tweakless bool) {
 	dustLimit := DustLimitForSize(input.UnknownWitnessSize)
 
 	aliceChanCfg := &channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		CommitmentParams: channeldb.CommitmentParams{
 			DustLimit: dustLimit,
 			CsvDelay:  csvTimeout,
 		},
 	}
 
 	bobChanCfg := &channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		CommitmentParams: channeldb.CommitmentParams{
 			DustLimit: dustLimit,
 			CsvDelay:  csvTimeout,
 		},
@@ -834,15 +834,17 @@ func createTestChannelsForVectors(tc *testContext, chanType channeldb.ChannelTyp
 
 	// Define channel configurations.
 	remoteCfg := channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
-			DustLimit: tc.dustLimit,
 			MaxPendingAmount: lnwire.NewMSatFromSatoshis(
 				tc.fundingAmount,
 			),
 			ChanReserve:      0,
 			MinHTLC:          0,
 			MaxAcceptedHtlcs: input.MaxHTLCNumber / 2,
-			CsvDelay:         tc.localCsvDelay,
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: tc.dustLimit,
+			CsvDelay:  tc.localCsvDelay,
 		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: tc.remoteFundingPrivkey.PubKey(),
@@ -861,15 +863,17 @@ func createTestChannelsForVectors(tc *testContext, chanType channeldb.ChannelTyp
 		},
 	}
 	localCfg := channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
-			DustLimit: tc.dustLimit,
 			MaxPendingAmount: lnwire.NewMSatFromSatoshis(
 				tc.fundingAmount,
 			),
 			ChanReserve:      0,
 			MinHTLC:          0,
 			MaxAcceptedHtlcs: input.MaxHTLCNumber / 2,
-			CsvDelay:         tc.localCsvDelay,
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: tc.dustLimit,
+			CsvDelay:  tc.localCsvDelay,
 		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: tc.localFundingPrivkey.PubKey(),

lnwallet/wallet.go

@@ -1379,7 +1379,7 @@ func (l *LightningWallet) initOurContribution(reservation *ChannelReservation,
 	)
 
 	reservation.partialState.RevocationProducer = producer
-	reservation.ourContribution.ChannelConstraints.DustLimit =
+	reservation.ourContribution.CommitmentParams.DustLimit =
 		DustLimitUnknownWitness()
 
 	// If taproot channels are active, then we'll generate our verification

peer/test_utils.go

@@ -115,13 +115,15 @@ func createTestPeerWithChannel(t *testing.T, updateChan func(a,
 	)
 
 	aliceCfg := channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
-			DustLimit:        aliceDustLimit,
 			MaxPendingAmount: lnwire.MilliSatoshi(rand.Int63()),
 			ChanReserve:      btcutil.Amount(rand.Int63()),
 			MinHTLC:          lnwire.MilliSatoshi(rand.Int63()),
 			MaxAcceptedHtlcs: uint16(rand.Int31()),
-			CsvDelay:         uint16(csvTimeoutAlice),
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: aliceDustLimit,
+			CsvDelay:  uint16(csvTimeoutAlice),
 		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: aliceKeyPub,
@@ -140,13 +142,15 @@ func createTestPeerWithChannel(t *testing.T, updateChan func(a,
 		},
 	}
 	bobCfg := channeldb.ChannelConfig{
-		ChannelConstraints: channeldb.ChannelConstraints{
+		ChannelStateBounds: channeldb.ChannelStateBounds{
-			DustLimit:        bobDustLimit,
 			MaxPendingAmount: lnwire.MilliSatoshi(rand.Int63()),
 			ChanReserve:      btcutil.Amount(rand.Int63()),
 			MinHTLC:          lnwire.MilliSatoshi(rand.Int63()),
 			MaxAcceptedHtlcs: uint16(rand.Int31()),
-			CsvDelay:         uint16(csvTimeoutBob),
+		},
+		CommitmentParams: channeldb.CommitmentParams{
+			DustLimit: bobDustLimit,
+			CsvDelay:  uint16(csvTimeoutBob),
 		},
 		MultiSigKey: keychain.KeyDescriptor{
 			PubKey: bobKeyPub,

routing/localchans/manager.go

@@ -279,7 +279,7 @@ func (r *Manager) getHtlcAmtLimits(tx kvdb.RTx, chanPoint wire.OutPoint) (
 	// capacity AND less than or equal to the max in-flight HTLC value.
 	// Since the latter is always less than or equal to the former, just
 	// return the max in-flight value.
-	maxAmt := ch.LocalChanCfg.ChannelConstraints.MaxPendingAmount
+	maxAmt := ch.LocalChanCfg.ChannelStateBounds.MaxPendingAmount
 
 	return ch.LocalChanCfg.MinHTLC, maxAmt, nil
 }

routing/localchans/manager_test.go

@@ -125,14 +125,14 @@ func TestManager(t *testing.T) {
 			return &channeldb.OpenChannel{}, channeldb.ErrChannelNotFound
 		}
 
-		constraints := channeldb.ChannelConstraints{
+		bounds := channeldb.ChannelStateBounds{
 			MaxPendingAmount: maxPendingAmount,
 			MinHTLC:          minHTLC,
 		}
 
 		return &channeldb.OpenChannel{
 			LocalChanCfg: channeldb.ChannelConfig{
-				ChannelConstraints: constraints,
+				ChannelStateBounds: bounds,
 			},
 		}, nil
 	}