platform: Fix check config

experimental/libbox/config.go

@@ -4,10 +4,19 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"net/netip"
+	"os"
 
 	"github.com/sagernet/sing-box"
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/common/process"
+	"github.com/sagernet/sing-box/experimental/libbox/platform"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-tun"
+	"github.com/sagernet/sing/common/control"
 	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	"github.com/sagernet/sing/common/x/list"
 )
 
 func parseConfig(configContent string) (option.Options, error) {
@@ -27,8 +36,9 @@ func CheckConfig(configContent string) error {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 	instance, err := box.New(box.Options{
-		Context: ctx,
-		Options: options,
+		Context:           ctx,
+		Options:           options,
+		PlatformInterface: (*platformInterfaceStub)(nil),
 	})
 	if err == nil {
 		instance.Close()
@@ -36,6 +46,92 @@ func CheckConfig(configContent string) error {
 	return err
 }
 
+type platformInterfaceStub struct{}
+
+func (s *platformInterfaceStub) Initialize(ctx context.Context, router adapter.Router) error {
+	return nil
+}
+
+func (s *platformInterfaceStub) UsePlatformAutoDetectInterfaceControl() bool {
+	return true
+}
+
+func (s *platformInterfaceStub) AutoDetectInterfaceControl() control.Func {
+	return nil
+}
+
+func (s *platformInterfaceStub) OpenTun(options *tun.Options, platformOptions option.TunPlatformOptions) (tun.Tun, error) {
+	return nil, os.ErrInvalid
+}
+
+func (s *platformInterfaceStub) UsePlatformDefaultInterfaceMonitor() bool {
+	return true
+}
+
+func (s *platformInterfaceStub) CreateDefaultInterfaceMonitor(logger logger.Logger) tun.DefaultInterfaceMonitor {
+	return (*interfaceMonitorStub)(nil)
+}
+
+func (s *platformInterfaceStub) UsePlatformInterfaceGetter() bool {
+	return true
+}
+
+func (s *platformInterfaceStub) Interfaces() ([]platform.NetworkInterface, error) {
+	return nil, os.ErrInvalid
+}
+
+func (s *platformInterfaceStub) UnderNetworkExtension() bool {
+	return false
+}
+
+func (s *platformInterfaceStub) ClearDNSCache() {
+}
+
+func (s *platformInterfaceStub) ReadWIFIState() adapter.WIFIState {
+	return adapter.WIFIState{}
+}
+
+func (s *platformInterfaceStub) FindProcessInfo(ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*process.Info, error) {
+	return nil, os.ErrInvalid
+}
+
+type interfaceMonitorStub struct{}
+
+func (s *interfaceMonitorStub) Start() error {
+	return os.ErrInvalid
+}
+
+func (s *interfaceMonitorStub) Close() error {
+	return os.ErrInvalid
+}
+
+func (s *interfaceMonitorStub) DefaultInterfaceName(destination netip.Addr) string {
+	return ""
+}
+
+func (s *interfaceMonitorStub) DefaultInterfaceIndex(destination netip.Addr) int {
+	return -1
+}
+
+func (s *interfaceMonitorStub) DefaultInterface(destination netip.Addr) (string, int) {
+	return "", -1
+}
+
+func (s *interfaceMonitorStub) OverrideAndroidVPN() bool {
+	return false
+}
+
+func (s *interfaceMonitorStub) AndroidVPNEnabled() bool {
+	return false
+}
+
+func (s *interfaceMonitorStub) RegisterCallback(callback tun.DefaultInterfaceUpdateCallback) *list.Element[tun.DefaultInterfaceUpdateCallback] {
+	return nil
+}
+
+func (s *interfaceMonitorStub) UnregisterCallback(element *list.Element[tun.DefaultInterfaceUpdateCallback]) {
+}
+
 func FormatConfig(configContent string) (string, error) {
 	options, err := parseConfig(configContent)
 	if err != nil {