Break out mobile and dummy adapter

src/dummy/dummy.go

@@ -0,0 +1,57 @@
+package dummy
+
+import (
+	"github.com/gologme/log"
+	"github.com/yggdrasil-network/yggdrasil-go/src/config"
+	"github.com/yggdrasil-network/yggdrasil-go/src/util"
+	"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
+)
+
+type DummyAdapter struct {
+	yggdrasil.Adapter
+	send   chan<- []byte
+	recv   <-chan []byte
+	reject <-chan yggdrasil.RejectedPacket
+}
+
+// Init initialises the TUN/TAP adapter.
+func (m *DummyAdapter) Init(config *config.NodeState, log *log.Logger, send chan<- []byte, recv <-chan []byte, reject <-chan yggdrasil.RejectedPacket) {
+	m.Adapter.Init(config, log, send, recv, reject)
+}
+
+// Name returns the name of the adapter, e.g. "tun0". On Windows, this may
+// return a canonical adapter name instead.
+func (m *DummyAdapter) Name() string {
+	return "dummy"
+}
+
+// MTU gets the adapter's MTU. This can range between 1280 and 65535, although
+// the maximum value is determined by your platform. The returned value will
+// never exceed that of MaximumMTU().
+func (m *DummyAdapter) MTU() int {
+	return 65535
+}
+
+// IsTAP returns true if the adapter is a TAP adapter (Layer 2) or false if it
+// is a TUN adapter (Layer 3).
+func (m *DummyAdapter) IsTAP() bool {
+	return false
+}
+
+// Wait for a packet from the router. You will use this when implementing a
+// dummy adapter in place of real TUN - when this call returns a packet, you
+// will probably want to give it to the OS to write to TUN.
+func (m *DummyAdapter) Recv() ([]byte, error) {
+	packet := <-m.recv
+	return packet, nil
+}
+
+// Send a packet to the router. You will use this when implementing a
+// dummy adapter in place of real TUN - when the operating system tells you
+// that a new packet is available from TUN, call this function to give it to
+// Yggdrasil.
+func (m *DummyAdapter) Send(buf []byte) error {
+	packet := append(util.GetBytes(), buf[:]...)
+	m.send <- packet
+	return nil
+}