renamed client and package to relay

pkg/relay/handler-forward.go

@@ -0,0 +1,33 @@
+package relay
+
+import (
+	"git-indra.lan/indra-labs/lnd/lnd/lnwire"
+
+	"git-indra.lan/indra-labs/indra/pkg/onion/layers/crypt"
+	"git-indra.lan/indra-labs/indra/pkg/onion/layers/forward"
+	"git-indra.lan/indra-labs/indra/pkg/types"
+	"git-indra.lan/indra-labs/indra/pkg/util/slice"
+)
+
+func (en *Engine) forward(on *forward.Layer, b slice.Bytes,
+	c *slice.Cursor, prev types.Onion) {
+
+	// forward the whole buffer received onwards. Usually there will be a
+	// crypt.Layer under this which will be unwrapped by the receiver.
+	if on.AddrPort.String() == en.Node.AddrPort.String() {
+		// it is for us, we want to unwrap the next part.
+		en.handleMessage(BudgeUp(b, *c), on)
+	} else {
+		switch on1 := prev.(type) {
+		case *crypt.Layer:
+			sess := en.FindSessionByHeader(on1.ToPriv)
+			if sess != nil {
+				log.D.Ln(on.AddrPort.String(), "forward forward")
+				en.DecSession(sess.ID,
+					en.RelayRate*lnwire.MilliSatoshi(len(b))/1024/1024)
+			}
+		}
+		// we need to forward this message onion.
+		en.Send(on.AddrPort, b)
+	}
+}