chore: cleanup dns policy match code

rules/provider/domain_set.go

@@ -19,10 +19,7 @@ func (d *DomainSet) RuleType() C.RuleType {
 }
 
 func (d *DomainSet) Match(metadata *C.Metadata) (bool, string) {
-	if d.domainSet == nil {
-		return false, ""
-	}
-	return d.domainSet.Has(metadata.RuleHost()), d.adapter
+	return d.domainStrategy.Match(metadata), d.adapter
 }
 
 func (d *DomainSet) Adapter() string {

rules/provider/ipcidr_set.go

@@ -0,0 +1,40 @@
+package provider
+
+import (
+	"github.com/metacubex/mihomo/component/cidr"
+	C "github.com/metacubex/mihomo/constant"
+)
+
+type IpCidrSet struct {
+	*ipcidrStrategy
+	adapter string
+}
+
+func (d *IpCidrSet) ProviderNames() []string {
+	return nil
+}
+
+func (d *IpCidrSet) RuleType() C.RuleType {
+	return C.IpCidrSet
+}
+
+func (d *IpCidrSet) Match(metadata *C.Metadata) (bool, string) {
+	return d.ipcidrStrategy.Match(metadata), d.adapter
+}
+
+func (d *IpCidrSet) Adapter() string {
+	return d.adapter
+}
+
+func (d *IpCidrSet) Payload() string {
+	return ""
+}
+
+func NewIpCidrSet(cidrSet *cidr.IpCidrSet, adapter string) *IpCidrSet {
+	return &IpCidrSet{
+		ipcidrStrategy: &ipcidrStrategy{cidrSet: cidrSet},
+		adapter:        adapter,
+	}
+}
+
+var _ C.Rule = (*IpCidrSet)(nil)