add router handler & connector

router/router_linux.go

@@ -2,6 +2,7 @@ package router
 
 import (
 	"fmt"
+	"net"
 
 	"github.com/go-gost/core/router"
 	"github.com/vishvananda/netlink"
@@ -9,10 +10,18 @@ import (
 
 func (p *localRouter) setSysRoutes(routes ...*router.Route) error {
 	for _, route := range routes {
+		if route.Net == nil {
+			continue
+		}
+		gw := net.ParseIP(route.Gateway)
+		if gw == nil {
+			continue
+		}
+
 		p.options.logger.Debugf("ip route replace %s via %s", route.Net, route.Gateway)
 		r := netlink.Route{
 			Dst: route.Net,
-			Gw:  route.Gateway,
+			Gw:  gw,
 		}
 		if err := netlink.RouteReplace(&r); err != nil {
 			return fmt.Errorf("set route %v %v: %v", r.Dst, r.Gw, err)