Rollback new routing functionality (#1805)

client/internal/routemanager/systemops_nonlinux.go

@@ -1,23 +1,41 @@
-//go:build !linux && !ios
+//go:build !linux
+// +build !linux
 
 package routemanager
 
 import (
 	"net/netip"
+	"os/exec"
 	"runtime"
 
 	log "github.com/sirupsen/logrus"
 )
 
-func enableIPForwarding() error {
-	log.Infof("Enable IP forwarding is not implemented on %s", runtime.GOOS)
+func addToRouteTable(prefix netip.Prefix, addr string) error {
+	cmd := exec.Command("route", "add", prefix.String(), addr)
+	out, err := cmd.Output()
+	if err != nil {
+		return err
+	}
+	log.Debugf(string(out))
 	return nil
 }
 
-func addVPNRoute(prefix netip.Prefix, intf string) error {
-	return genericAddVPNRoute(prefix, intf)
+func removeFromRouteTable(prefix netip.Prefix, addr string) error {
+	args := []string{"delete", prefix.String()}
+	if runtime.GOOS == "darwin" {
+		args = append(args, addr)
+	}
+	cmd := exec.Command("route", args...)
+	out, err := cmd.Output()
+	if err != nil {
+		return err
+	}
+	log.Debugf(string(out))
+	return nil
 }
 
-func removeVPNRoute(prefix netip.Prefix, intf string) error {
-	return genericRemoveVPNRoute(prefix, intf)
+func enableIPForwarding() error {
+	log.Infof("enable IP forwarding is not implemented on %s", runtime.GOOS)
+	return nil
 }