channeldb: add TheirDustLimit and OurDustLimit fields in OpenChannel

lnwallet/parameters.go

@@ -0,0 +1,12 @@
+package lnwallet
+
+import (
+	"github.com/roasbeef/btcwallet/wallet/txrules"
+	"github.com/roasbeef/btcutil"
+)
+
+// DefaultDustLimit is used to calculate the dust HTLC amount which will be
+// proposed to other node during channel creation.
+func DefaultDustLimit() btcutil.Amount {
+	return txrules.GetDustThreshold(P2WSHSize, txrules.DefaultRelayFeePerKb)
+}