feat: Waku v2 bridge

Issue #12610

vendor/github.com/pion/turn/v2/internal/proto/rsrvtoken.go

@@ -0,0 +1,39 @@
+package proto
+
+import "github.com/pion/stun"
+
+// ReservationToken represents RESERVATION-TOKEN attribute.
+//
+// The RESERVATION-TOKEN attribute contains a token that uniquely
+// identifies a relayed transport address being held in reserve by the
+// server. The server includes this attribute in a success response to
+// tell the client about the token, and the client includes this
+// attribute in a subsequent Allocate request to request the server use
+// that relayed transport address for the allocation.
+//
+// RFC 5766 Section 14.9
+type ReservationToken []byte
+
+const reservationTokenSize = 8 // 8 bytes
+
+// AddTo adds RESERVATION-TOKEN to message.
+func (t ReservationToken) AddTo(m *stun.Message) error {
+	if err := stun.CheckSize(stun.AttrReservationToken, len(t), reservationTokenSize); err != nil {
+		return err
+	}
+	m.Add(stun.AttrReservationToken, t)
+	return nil
+}
+
+// GetFrom decodes RESERVATION-TOKEN from message.
+func (t *ReservationToken) GetFrom(m *stun.Message) error {
+	v, err := m.Get(stun.AttrReservationToken)
+	if err != nil {
+		return err
+	}
+	if err = stun.CheckSize(stun.AttrReservationToken, len(v), reservationTokenSize); err != nil {
+		return err
+	}
+	*t = v
+	return nil
+}