Add dns client

option/config.go

@@ -12,6 +12,7 @@ type _Options struct {
 	Log       *LogOption    `json:"log,omitempty"`
 	Inbounds  []Inbound     `json:"inbounds,omitempty"`
 	Outbounds []Outbound    `json:"outbounds,omitempty"`
+	DNS       *DNSOptions   `json:"dns,omitempty"`
 	Route     *RouteOptions `json:"route,omitempty"`
 }
 

option/dns.go

@@ -0,0 +1,12 @@
+package option
+
+type DNSOptions struct {
+	Servers []DNSServerOptions `json:"servers,omitempty"`
+}
+
+type DNSServerOptions struct {
+	Tag             string `json:"tag,omitempty"`
+	Address         string `json:"address"`
+	Detour          string `json:"detour,omitempty"`
+	AddressResolver string `json:"address_resolver,omitempty"`
+}

option/route.go

@@ -101,9 +101,7 @@ type DefaultRule struct {
 	IPCIDR        Listable[string] `json:"ip_cidr,omitempty"`
 	SourcePort    Listable[uint16] `json:"source_port,omitempty"`
 	Port          Listable[uint16] `json:"port,omitempty"`
-	// ProcessName   Listable[string] `json:"process_name,omitempty"`
-	// ProcessPath   Listable[string] `json:"process_path,omitempty"`
-	Outbound string `json:"outbound,omitempty"`
+	Outbound      string           `json:"outbound,omitempty"`
 }
 
 func (r DefaultRule) IsValid() bool {

option/types.go

@@ -90,3 +90,47 @@ func (l *Listable[T]) UnmarshalJSON(content []byte) error {
 	*l = []T{singleItem}
 	return nil
 }
+
+type DomainStrategy C.DomainStrategy
+
+func (s DomainStrategy) MarshalJSON() ([]byte, error) {
+	var value string
+	switch C.DomainStrategy(s) {
+	case C.DomainStrategyAsIS:
+		value = "AsIS"
+	case C.DomainStrategyPreferIPv4:
+		value = "PreferIPv4"
+	case C.DomainStrategyPreferIPv6:
+		value = "PreferIPv6"
+	case C.DomainStrategyUseIPv4:
+		value = "UseIPv4"
+	case C.DomainStrategyUseIPv6:
+		value = "UseIPv6"
+	default:
+		return nil, E.New("unknown domain strategy: ", s)
+	}
+	return json.Marshal(value)
+}
+
+func (s *DomainStrategy) UnmarshalJSON(bytes []byte) error {
+	var value string
+	err := json.Unmarshal(bytes, &value)
+	if err != nil {
+		return err
+	}
+	switch value {
+	case "AsIS":
+		*s = DomainStrategy(C.DomainStrategyAsIS)
+	case "PreferIPv4":
+		*s = DomainStrategy(C.DomainStrategyPreferIPv4)
+	case "PreferIPv6":
+		*s = DomainStrategy(C.DomainStrategyPreferIPv6)
+	case "UseIPv4":
+		*s = DomainStrategy(C.DomainStrategyUseIPv4)
+	case "UseIPv6":
+		*s = DomainStrategy(C.DomainStrategyUseIPv6)
+	default:
+		return E.New("unknown domain strategy: ", value)
+	}
+	return nil
+}