feat: Waku v2 bridge

Issue #12610

vendor/github.com/pion/transport/vnet/interface.go

@@ -0,0 +1,40 @@
+package vnet
+
+import (
+	"errors"
+	"net"
+)
+
+var errNoAddressAssigned = errors.New("no address assigned")
+
+// See: https://play.golang.org/p/nBO9KGYEziv
+
+// InterfaceBase ...
+type InterfaceBase net.Interface
+
+// Interface ...
+type Interface struct {
+	InterfaceBase
+	addrs []net.Addr
+}
+
+// NewInterface ...
+func NewInterface(ifc net.Interface) *Interface {
+	return &Interface{
+		InterfaceBase: InterfaceBase(ifc),
+		addrs:         nil,
+	}
+}
+
+// AddAddr ...
+func (ifc *Interface) AddAddr(addr net.Addr) {
+	ifc.addrs = append(ifc.addrs, addr)
+}
+
+// Addrs ...
+func (ifc *Interface) Addrs() ([]net.Addr, error) {
+	if len(ifc.addrs) == 0 {
+		return nil, errNoAddressAssigned
+	}
+	return ifc.addrs, nil
+}