Add address filter support for DNS rules

route/rule_item_rule_set.go

@@ -4,6 +4,7 @@ import (
 	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
 )
@@ -13,7 +14,7 @@ var _ RuleItem = (*RuleSetItem)(nil)
 type RuleSetItem struct {
 	router            adapter.Router
 	tagList           []string
-	setList           []adapter.HeadlessRule
+	setList           []adapter.RuleSet
 	ipcidrMatchSource bool
 }
 
@@ -46,6 +47,12 @@ func (r *RuleSetItem) Match(metadata *adapter.InboundContext) bool {
 	return false
 }
 
+func (r *RuleSetItem) ContainsIPCIDRRule() bool {
+	return common.Any(r.setList, func(ruleSet adapter.RuleSet) bool {
+		return ruleSet.Metadata().ContainsIPCIDRRule
+	})
+}
+
 func (r *RuleSetItem) String() string {
 	if len(r.tagList) == 1 {
 		return F.ToString("rule_set=", r.tagList[0])