Merge from remote branch

dns/filters.go

@@ -16,11 +16,13 @@ type fallbackIPFilter interface {
 	Match(net.IP) bool
 }
 
-type geoipFilter struct{}
+type geoipFilter struct {
+	code string
+}
 
 func (gf *geoipFilter) Match(ip net.IP) bool {
 	if multiGeoIPMatcher == nil {
-		countryCodeCN := "cn"
+		countryCodeCN := gf.code
 		countryCodePrivate := "private"
 		geoLoader, err := geodata.GetGeoDataLoader("standard")
 		if err != nil {

dns/resolver.go

@@ -302,9 +302,10 @@ type NameServer struct {
 }
 
 type FallbackFilter struct {
-	GeoIP  bool
-	IPCIDR []*net.IPNet
-	Domain []string
+	GeoIP     bool
+	GeoIPCode string
+	IPCIDR    []*net.IPNet
+	Domain    []string
 }
 
 type Config struct {
@@ -344,7 +345,9 @@ func NewResolver(config Config) *Resolver {
 
 	fallbackIPFilters := []fallbackIPFilter{}
 	if config.FallbackFilter.GeoIP {
-		fallbackIPFilters = append(fallbackIPFilters, &geoipFilter{})
+		fallbackIPFilters = append(fallbackIPFilters, &geoipFilter{
+			code: config.FallbackFilter.GeoIPCode,
+		})
 	}
 	for _, ipnet := range config.FallbackFilter.IPCIDR {
 		fallbackIPFilters = append(fallbackIPFilters, &ipnetFilter{ipnet: ipnet})