add pkgs from core

registry/bypass.go

@@ -0,0 +1,40 @@
+package registry
+
+import (
+	"github.com/go-gost/core/bypass"
+)
+
+type bypassRegistry struct {
+	registry
+}
+
+func (r *bypassRegistry) Register(name string, v bypass.Bypass) error {
+	return r.registry.Register(name, v)
+}
+
+func (r *bypassRegistry) Get(name string) bypass.Bypass {
+	if name != "" {
+		return &bypassWrapper{name: name, r: r}
+	}
+	return nil
+}
+
+func (r *bypassRegistry) get(name string) bypass.Bypass {
+	if v := r.registry.Get(name); v != nil {
+		return v.(bypass.Bypass)
+	}
+	return nil
+}
+
+type bypassWrapper struct {
+	name string
+	r    *bypassRegistry
+}
+
+func (w *bypassWrapper) Contains(addr string) bool {
+	bp := w.r.get(w.name)
+	if bp == nil {
+		return false
+	}
+	return bp.Contains(addr)
+}