Fix possible blocker if the bind will be closed earlier then proxy

client/iface/wgproxy/bind/proxy.go

@@ -13,8 +13,14 @@ import (
 	"github.com/netbirdio/netbird/client/iface/bind"
 )
 
+type IceBind interface {
+	SetEndpoint(addr *net.UDPAddr, conn net.Conn) (*net.UDPAddr, error)
+	RemoveEndpoint(addr *net.UDPAddr)
+	Recv(ctx context.Context, msg bind.RecvMessage)
+}
+
 type ProxyBind struct {
-	bind *bind.ICEBind
+	bind IceBind
 
 	// wgEndpoint is a fake address that generated by the Bind.SetEndpoint based on the remote NetBird peer address
 	wgRelayedEndpoint *bind.Endpoint
@@ -30,7 +36,7 @@ type ProxyBind struct {
 	isStarted  bool
 }
 
-func NewProxyBind(bind *bind.ICEBind) *ProxyBind {
+func NewProxyBind(bind IceBind) *ProxyBind {
 	return &ProxyBind{
 		bind:       bind,
 		pausedCond: sync.NewCond(&sync.Mutex{}),
@@ -172,7 +178,7 @@ func (p *ProxyBind) proxyToLocal(ctx context.Context) {
 			Endpoint: p.wgCurrentUsed,
 			Buffer:   buf[:n],
 		}
-		p.bind.RecvChan <- msg
+		p.bind.Recv(ctx, msg)
 		p.pausedCond.L.Unlock()
 	}
 }