server: Add max value in flight to server

pilot.go

@@ -106,6 +106,7 @@ func (c *chanController) OpenChannel(target *btcec.PublicKey,
 		private:         c.private,
 		remoteCsvDelay:  0,
 		minConfs:        c.minConfs,
+		maxValueInFlight: 0,
 	}
 
 	updateStream, errChan := c.server.OpenChannel(req)

rpcserver.go

@@ -1710,6 +1710,7 @@ func (r *rpcServer) parseOpenChannelReq(in *lnrpc.OpenChannelRequest,
 	remoteInitialBalance := btcutil.Amount(in.PushSat)
 	minHtlcIn := lnwire.MilliSatoshi(in.MinHtlcMsat)
 	remoteCsvDelay := uint16(in.RemoteCsvDelay)
+	maxValue := lnwire.MilliSatoshi(in.MaxValueInFlight)
 
 	// Ensure that the initial balance of the remote party (if pushing
 	// satoshis) does not exceed the amount the local party has requested
@@ -1812,16 +1813,17 @@ func (r *rpcServer) parseOpenChannelReq(in *lnrpc.OpenChannelRequest,
 	// open a new channel. A stream is returned in place, this stream will
 	// be used to consume updates of the state of the pending channel.
 	return &openChanReq{
-		targetPubkey:    nodePubKey,
+		targetPubkey:     nodePubKey,
-		chainHash:       *activeNetParams.GenesisHash,
+		chainHash:        *activeNetParams.GenesisHash,
-		localFundingAmt: localFundingAmt,
+		localFundingAmt:  localFundingAmt,
-		pushAmt:         lnwire.NewMSatFromSatoshis(remoteInitialBalance),
+		pushAmt:          lnwire.NewMSatFromSatoshis(remoteInitialBalance),
-		minHtlcIn:       minHtlcIn,
+		minHtlcIn:        minHtlcIn,
-		fundingFeePerKw: feeRate,
+		fundingFeePerKw:  feeRate,
-		private:         in.Private,
+		private:          in.Private,
-		remoteCsvDelay:  remoteCsvDelay,
+		remoteCsvDelay:   remoteCsvDelay,
-		minConfs:        minConfs,
+		minConfs:         minConfs,
-		shutdownScript:  script,
+		shutdownScript:   script,
+		maxValueInFlight: maxValue,
 	}, nil
 }
 

server.go

@@ -3179,6 +3179,10 @@ type openChanReq struct {
 	// This value is optional, so may be nil.
 	shutdownScript lnwire.DeliveryAddress
 
+	// maxValueInFlight is the maximum amount of coins in millisatoshi that can
+	// be pending within the channel. It only applies to the remote party.
+	maxValueInFlight lnwire.MilliSatoshi
+
 	// TODO(roasbeef): add ability to specify channel constraints as well
 
 	// chanFunder is an optional channel funder that allows the caller to