Feature: resolve ip with a proxy adapter

README.md

@@ -36,6 +36,37 @@
 Documentations are now moved to [GitHub Wiki](https://github.com/Dreamacro/clash/wiki).
 
 ## Advanced usage for this branch
+### DNS configuration
+Support resolve ip with a proxy tunnel.
+
+Support `geosite` with `fallback-filter`.
+ ```yaml
+ dns:
+   enable: true
+   use-hosts: true
+   ipv6: false
+   enhanced-mode: fake-ip
+   fake-ip-range: 198.18.0.1/16
+   listen: 127.0.0.1:6868
+   default-nameserver:
+     - 119.29.29.29
+     - 114.114.114.114
+   nameserver:
+     - https://doh.pub/dns-query
+     - tls://223.5.5.5:853
+   fallback:
+     - 'https://1.0.0.1/dns-query#Proxy'  # append the proxy adapter name to the end of DNS URL with '#' prefix.
+     - 'tls://8.8.4.4:853#Proxy'
+   fallback-filter:
+     geoip: false
+     geosite:
+       - gfw  # `geosite` filter only use fallback server to resolve ip, prevent DNS leaks to unsafe DNS providers.
+     domain:
+       - +.example.com
+     ipcidr:
+       - 0.0.0.0/32
+ ```
+
 ### TUN configuration
 Supports macOS, Linux and Windows.
 
@@ -86,7 +117,7 @@ rules:
   #- GEOIP,!cn,PROXY
     
   # source IPCIDR condition for all rules in gateway proxy
-  #- GEOIP,!cn,PROXY,192.168.1.88/32,192.168.1.99/32
+  #- GEOSITE,geolocation-!cn,REJECT,192.168.1.88/32,192.168.1.99/32
 
   - MATCH,PROXY
 ```
@@ -103,22 +134,9 @@ proxies:
     port: 443
     uuid: uuid
     network: tcp
-    servername: example.com # AKA SNI
+    servername: example.com
     # flow: xtls-rprx-direct # xtls-rprx-origin  # enable XTLS
     # skip-cert-verify: true
-    
-  - name: "vless-ws"
-    type: vless
-    server: server
-    port: 443
-    uuid: uuid
-    udp: true
-    network: ws
-    servername: example.com # priority over wss host
-    # skip-cert-verify: true
-    ws-path: /path
-    ws-headers:
-      Host: example.com
 ```
 
 ### IPTABLES auto-configuration

component/dialer/dialer.go

@@ -9,6 +9,19 @@ import (
 )
 
 func DialContext(ctx context.Context, network, address string, options ...Option) (net.Conn, error) {
+	opt := &option{
+		interfaceName: DefaultInterface.Load(),
+		routingMark:   int(DefaultRoutingMark.Load()),
+	}
+
+	for _, o := range DefaultOptions {
+		o(opt)
+	}
+
+	for _, o := range options {
+		o(opt)
+	}
+
 	switch network {
 	case "tcp4", "tcp6", "udp4", "udp6":
 		host, port, err := net.SplitHostPort(address)
@@ -19,17 +32,25 @@ func DialContext(ctx context.Context, network, address string, options ...Option
 		var ip net.IP
 		switch network {
 		case "tcp4", "udp4":
+			if opt.interfaceName != "" {
+				ip, err = resolver.ResolveIPv4WithMain(host)
+			} else {
 				ip, err = resolver.ResolveIPv4(host)
+			}
 		default:
+			if opt.interfaceName != "" {
+				ip, err = resolver.ResolveIPv6WithMain(host)
+			} else {
 				ip, err = resolver.ResolveIPv6(host)
 			}
+		}
 		if err != nil {
 			return nil, err
 		}
 
-		return dialContext(ctx, network, ip, port, options)
+		return dialContext(ctx, network, ip, port, opt)
 	case "tcp", "udp":
-		return dualStackDialContext(ctx, network, address, options)
+		return dualStackDialContext(ctx, network, address, opt)
 	default:
 		return nil, errors.New("network invalid")
 	}
@@ -67,20 +88,7 @@ func ListenPacket(ctx context.Context, network, address string, options ...Optio
 	return lc.ListenPacket(ctx, network, address)
 }
 
-func dialContext(ctx context.Context, network string, destination net.IP, port string, options []Option) (net.Conn, error) {
+func dialContext(ctx context.Context, network string, destination net.IP, port string, opt *option) (net.Conn, error) {
-	opt := &option{
-		interfaceName: DefaultInterface.Load(),
-		routingMark:   int(DefaultRoutingMark.Load()),
-	}
-
-	for _, o := range DefaultOptions {
-		o(opt)
-	}
-
-	for _, o := range options {
-		o(opt)
-	}
-
 	dialer := &net.Dialer{}
 	if opt.interfaceName != "" {
 		if err := bindIfaceToDialer(opt.interfaceName, dialer, network, destination); err != nil {
@@ -94,7 +102,7 @@ func dialContext(ctx context.Context, network string, destination net.IP, port s
 	return dialer.DialContext(ctx, network, net.JoinHostPort(destination.String(), port))
 }
 
-func dualStackDialContext(ctx context.Context, network, address string, options []Option) (net.Conn, error) {
+func dualStackDialContext(ctx context.Context, network, address string, opt *option) (net.Conn, error) {
 	host, port, err := net.SplitHostPort(address)
 	if err != nil {
 		return nil, err
@@ -127,16 +135,24 @@ func dualStackDialContext(ctx context.Context, network, address string, options
 
 		var ip net.IP
 		if ipv6 {
+			if opt.interfaceName != "" {
+				ip, result.error = resolver.ResolveIPv6WithMain(host)
+			} else {
 				ip, result.error = resolver.ResolveIPv6(host)
+			}
+		} else {
+			if opt.interfaceName != "" {
+				ip, result.error = resolver.ResolveIPv4WithMain(host)
 			} else {
 				ip, result.error = resolver.ResolveIPv4(host)
 			}
+		}
 		if result.error != nil {
 			return
 		}
 		result.resolved = true
 
-		result.Conn, result.error = dialContext(ctx, network, ip, port, options)
+		result.Conn, result.error = dialContext(ctx, network, ip, port, opt)
 	}
 
 	go startRacer(ctx, network+"4", host, false)

component/geodata/utils.go

@@ -0,0 +1,30 @@
+package geodata
+
+import (
+	"github.com/Dreamacro/clash/component/geodata/router"
+)
+
+func LoadGeoSiteMatcher(countryCode string) (*router.DomainMatcher, int, error) {
+	geoLoaderName := "standard"
+	geoLoader, err := GetGeoDataLoader(geoLoaderName)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	domains, err := geoLoader.LoadGeoSite(countryCode)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	/**
+	linear: linear algorithm
+	matcher, err := router.NewDomainMatcher(domains)
+	mph：minimal perfect hash algorithm
+	*/
+	matcher, err := router.NewMphMatcherGroup(domains)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	return matcher, len(domains), nil
+}

component/resolver/resolver.go

@@ -15,6 +15,9 @@ var (
 	// DefaultResolver aim to resolve ip
 	DefaultResolver Resolver
 
+	// MainResolver resolve ip with main domain server
+	MainResolver Resolver
+
 	// DisableIPv6 means don't resolve ipv6 host
 	// default value is true
 	DisableIPv6 = true
@@ -40,6 +43,14 @@ type Resolver interface {
 
 // ResolveIPv4 with a host, return ipv4
 func ResolveIPv4(host string) (net.IP, error) {
+	return ResolveIPv4WithResolver(host, DefaultResolver)
+}
+
+func ResolveIPv4WithMain(host string) (net.IP, error) {
+	return ResolveIPv4WithResolver(host, MainResolver)
+}
+
+func ResolveIPv4WithResolver(host string, r Resolver) (net.IP, error) {
 	if node := DefaultHosts.Search(host); node != nil {
 		if ip := node.Data.(net.IP).To4(); ip != nil {
 			return ip, nil
@@ -54,8 +65,8 @@ func ResolveIPv4(host string) (net.IP, error) {
 		return nil, ErrIPVersion
 	}
 
-	if DefaultResolver != nil {
+	if r != nil {
-		return DefaultResolver.ResolveIPv4(host)
+		return r.ResolveIPv4(host)
 	}
 
 	ctx, cancel := context.WithTimeout(context.Background(), DefaultDNSTimeout)
@@ -72,6 +83,14 @@ func ResolveIPv4(host string) (net.IP, error) {
 
 // ResolveIPv6 with a host, return ipv6
 func ResolveIPv6(host string) (net.IP, error) {
+	return ResolveIPv6WithResolver(host, DefaultResolver)
+}
+
+func ResolveIPv6WithMain(host string) (net.IP, error) {
+	return ResolveIPv6WithResolver(host, MainResolver)
+}
+
+func ResolveIPv6WithResolver(host string, r Resolver) (net.IP, error) {
 	if DisableIPv6 {
 		return nil, ErrIPv6Disabled
 	}
@@ -90,8 +109,8 @@ func ResolveIPv6(host string) (net.IP, error) {
 		return nil, ErrIPVersion
 	}
 
-	if DefaultResolver != nil {
+	if r != nil {
-		return DefaultResolver.ResolveIPv6(host)
+		return r.ResolveIPv6(host)
 	}
 
 	ctx, cancel := context.WithTimeout(context.Background(), DefaultDNSTimeout)
@@ -138,3 +157,8 @@ func ResolveIPWithResolver(host string, r Resolver) (net.IP, error) {
 func ResolveIP(host string) (net.IP, error) {
 	return ResolveIPWithResolver(host, DefaultResolver)
 }
+
+// ResolveIPWithMainResolver with a host, use main resolver, return ip
+func ResolveIPWithMainResolver(host string) (net.IP, error) {
+	return ResolveIPWithResolver(host, MainResolver)
+}

config/config.go

@@ -15,6 +15,8 @@ import (
 	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/component/auth"
 	"github.com/Dreamacro/clash/component/fakeip"
+	"github.com/Dreamacro/clash/component/geodata"
+	"github.com/Dreamacro/clash/component/geodata/router"
 	"github.com/Dreamacro/clash/component/trie"
 	C "github.com/Dreamacro/clash/constant"
 	providerTypes "github.com/Dreamacro/clash/constant/provider"
@@ -78,6 +80,7 @@ type FallbackFilter struct {
 	GeoIPCode string                  `yaml:"geoip-code"`
 	IPCIDR    []*net.IPNet            `yaml:"ipcidr"`
 	Domain    []string                `yaml:"domain"`
+	GeoSite   []*router.DomainMatcher `yaml:"geosite"`
 }
 
 // Profile config
@@ -131,6 +134,7 @@ type RawFallbackFilter struct {
 	GeoIPCode string   `yaml:"geoip-code"`
 	IPCIDR    []string `yaml:"ipcidr"`
 	Domain    []string `yaml:"domain"`
+	GeoSite   []string `yaml:"geosite"`
 }
 
 type RawConfig struct {
@@ -198,6 +202,7 @@ func UnmarshalRawConfig(buf []byte) (*RawConfig, error) {
 				GeoIP:     true,
 				GeoIPCode: "CN",
 				IPCIDR:    []string{},
+				GeoSite:   []string{},
 			},
 			DefaultNameserver: []string{
 				"114.114.114.114",
@@ -247,7 +252,7 @@ func ParseRawConfig(rawCfg *RawConfig) (*Config, error) {
 	}
 	config.Hosts = hosts
 
-	dnsCfg, err := parseDNS(rawCfg, hosts)
+	dnsCfg, err := parseDNS(rawCfg, hosts, rules)
 	if err != nil {
 		return nil, err
 	}
@@ -535,6 +540,7 @@ func parseNameServer(servers []string) ([]dns.NameServer, error) {
 			dns.NameServer{
 				Net:          dnsNetType,
 				Addr:         addr,
+				ProxyAdapter: u.Fragment,
 			},
 		)
 	}
@@ -572,7 +578,37 @@ func parseFallbackIPCIDR(ips []string) ([]*net.IPNet, error) {
 	return ipNets, nil
 }
 
-func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie) (*DNS, error) {
+func parseFallbackGeoSite(countries []string, rules []C.Rule) ([]*router.DomainMatcher, error) {
+	sites := []*router.DomainMatcher{}
+
+	for _, country := range countries {
+		found := false
+		for _, rule := range rules {
+			if rule.RuleType() == C.GEOSITE {
+				if strings.EqualFold(country, rule.Payload()) {
+					found = true
+					sites = append(sites, rule.(C.RuleGeoSite).GetDomainMatcher())
+					log.Infoln("Start initial GeoSite dns fallback filter from rule `%s`", country)
+				}
+			}
+		}
+
+		if !found {
+			matcher, recordsCount, err := geodata.LoadGeoSiteMatcher(country)
+			if err != nil {
+				return nil, err
+			}
+
+			sites = append(sites, matcher)
+
+			log.Infoln("Start initial GeoSite dns fallback filter `%s`, records: %d", country, recordsCount)
+		}
+	}
+	runtime.GC()
+	return sites, nil
+}
+
+func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie, rules []C.Rule) (*DNS, error) {
 	cfg := rawCfg.DNS
 	if cfg.Enable && len(cfg.NameServer) == 0 {
 		return nil, fmt.Errorf("if DNS configuration is turned on, NameServer cannot be empty")
@@ -585,6 +621,7 @@ func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie) (*DNS, error) {
 		EnhancedMode: cfg.EnhancedMode,
 		FallbackFilter: FallbackFilter{
 			IPCIDR:  []*net.IPNet{},
+			GeoSite: []*router.DomainMatcher{},
 		},
 	}
 	var err error
@@ -629,6 +666,18 @@ func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie) (*DNS, error) {
 			}
 		}
 
+		if len(dnsCfg.Fallback) != 0 {
+			if host == nil {
+				host = trie.New()
+			}
+			for _, fb := range dnsCfg.Fallback {
+				if net.ParseIP(fb.Addr) != nil {
+					continue
+				}
+				host.Insert(fb.Addr, true)
+			}
+		}
+
 		pool, err := fakeip.New(fakeip.Options{
 			IPNet:       ipnet,
 			Size:        1000,
@@ -642,12 +691,19 @@ func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie) (*DNS, error) {
 		dnsCfg.FakeIPRange = pool
 	}
 
+	if len(cfg.Fallback) != 0 {
 		dnsCfg.FallbackFilter.GeoIP = cfg.FallbackFilter.GeoIP
 		dnsCfg.FallbackFilter.GeoIPCode = cfg.FallbackFilter.GeoIPCode
 		if fallbackip, err := parseFallbackIPCIDR(cfg.FallbackFilter.IPCIDR); err == nil {
 			dnsCfg.FallbackFilter.IPCIDR = fallbackip
 		}
 		dnsCfg.FallbackFilter.Domain = cfg.FallbackFilter.Domain
+		fallbackGeoSite, err := parseFallbackGeoSite(cfg.FallbackFilter.GeoSite, rules)
+		if err != nil {
+			return nil, fmt.Errorf("load GeoSite dns fallback filter error, %w", err)
+		}
+		dnsCfg.FallbackFilter.GeoSite = fallbackGeoSite
+	}
 
 	if cfg.UseHosts {
 		dnsCfg.Hosts = hosts

constant/rule.go

@@ -1,7 +1,5 @@
 package constant
 
-import "net"
-
 // Rule Type
 const (
 	Domain RuleType = iota
@@ -56,5 +54,3 @@ type Rule interface {
 	ShouldResolveIP() bool
 	RuleExtra() *RuleExtra
 }
-
-var TunBroadcastAddr = net.IPv4(198, 18, 255, 255)

constant/rule_extra.go

@@ -1,6 +1,12 @@
 package constant
 
-import "net"
+import (
+	"net"
+
+	"github.com/Dreamacro/clash/component/geodata/router"
+)
+
+var TunBroadcastAddr = net.IPv4(198, 18, 255, 255)
 
 type RuleExtra struct {
 	Network   NetWork
@@ -23,3 +29,7 @@ func (re *RuleExtra) NotMatchSourceIP(srcIP net.IP) bool {
 	}
 	return true
 }
+
+type RuleGeoSite interface {
+	GetDomainMatcher() *router.DomainMatcher
+}

dns/client.go

@@ -19,6 +19,7 @@ type client struct {
 	port         string
 	host         string
 	iface        string
+	proxyAdapter string
 }
 
 func (c *client) Exchange(m *D.Msg) (*D.Msg, error) {
@@ -50,7 +51,14 @@ func (c *client) ExchangeContext(ctx context.Context, m *D.Msg) (*D.Msg, error)
 	if c.iface != "" {
 		options = append(options, dialer.WithInterface(c.iface))
 	}
-	conn, err := dialer.DialContext(ctx, network, net.JoinHostPort(ip.String(), c.port), options...)
+
+	var conn net.Conn
+	if c.proxyAdapter == "" {
+		conn, err = dialer.DialContext(ctx, network, net.JoinHostPort(ip.String(), c.port), options...)
+	} else {
+		conn, err = dialContextWithProxyAdapter(ctx, c.proxyAdapter, network, ip, c.port, options...)
+	}
+
 	if err != nil {
 		return nil, err
 	}

dns/doh.go

@@ -20,6 +20,7 @@ const (
 
 type dohClient struct {
 	url          string
+	proxyAdapter string
 	transport    *http.Transport
 }
 
@@ -79,9 +80,10 @@ func (dc *dohClient) doRequest(req *http.Request) (msg *D.Msg, err error) {
 	return msg, err
 }
 
-func newDoHClient(url string, r *Resolver) *dohClient {
+func newDoHClient(url string, r *Resolver, proxyAdapter string) *dohClient {
 	return &dohClient{
 		url:          url,
+		proxyAdapter: proxyAdapter,
 		transport: &http.Transport{
 			ForceAttemptHTTP2: true,
 			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
@@ -95,7 +97,11 @@ func newDoHClient(url string, r *Resolver) *dohClient {
 					return nil, err
 				}
 
+				if proxyAdapter == "" {
 					return dialer.DialContext(ctx, "tcp", net.JoinHostPort(ip.String(), port))
+				} else {
+					return dialContextWithProxyAdapter(ctx, proxyAdapter, "tcp", ip, port)
+				}
 			},
 		},
 	}

dns/filters.go

@@ -4,6 +4,7 @@ import (
 	"net"
 	"strings"
 
+	"github.com/Dreamacro/clash/component/geodata/router"
 	"github.com/Dreamacro/clash/component/mmdb"
 	"github.com/Dreamacro/clash/component/trie"
 	C "github.com/Dreamacro/clash/constant"
@@ -49,3 +50,16 @@ func NewDomainFilter(domains []string) *domainFilter {
 func (df *domainFilter) Match(domain string) bool {
 	return df.tree.Search(domain) != nil
 }
+
+type geoSiteFilter struct {
+	matchers []*router.DomainMatcher
+}
+
+func (gsf *geoSiteFilter) Match(domain string) bool {
+	for _, matcher := range gsf.matchers {
+		if matcher.ApplyDomain(domain) {
+			return true
+		}
+	}
+	return false
+}

dns/resolver.go

@@ -12,6 +12,7 @@ import (
 	"github.com/Dreamacro/clash/common/cache"
 	"github.com/Dreamacro/clash/common/picker"
 	"github.com/Dreamacro/clash/component/fakeip"
+	"github.com/Dreamacro/clash/component/geodata/router"
 	"github.com/Dreamacro/clash/component/resolver"
 	"github.com/Dreamacro/clash/component/trie"
 	C "github.com/Dreamacro/clash/constant"
@@ -230,13 +231,12 @@ func (r *Resolver) ipExchange(ctx context.Context, m *D.Msg) (msg *D.Msg, err er
 
 	msgCh := r.asyncExchange(ctx, r.main, m)
 
-	if r.fallback == nil { // directly return if no fallback servers are available
+	if r.fallback == nil || len(r.fallback) == 0 { // directly return if no fallback servers are available
 		res := <-msgCh
 		msg, err = res.Msg, res.Error
 		return
 	}
 
-	fallbackMsg := r.asyncExchange(ctx, r.fallback, m)
 	res := <-msgCh
 	if res.Error == nil {
 		if ips := msgToIP(res.Msg); len(ips) != 0 {
@@ -248,7 +248,7 @@ func (r *Resolver) ipExchange(ctx context.Context, m *D.Msg) (msg *D.Msg, err er
 		}
 	}
 
-	res = <-fallbackMsg
+	res = <-r.asyncExchange(ctx, r.fallback, m)
 	msg, err = res.Msg, res.Error
 	return
 }
@@ -305,6 +305,7 @@ type NameServer struct {
 	Net          string
 	Addr         string
 	Interface    string
+	ProxyAdapter string
 }
 
 type FallbackFilter struct {
@@ -312,6 +313,7 @@ type FallbackFilter struct {
 	GeoIPCode string
 	IPCIDR    []*net.IPNet
 	Domain    []string
+	GeoSite   []*router.DomainMatcher
 }
 
 type Config struct {
@@ -360,10 +362,28 @@ func NewResolver(config Config) *Resolver {
 	}
 	r.fallbackIPFilters = fallbackIPFilters
 
+	fallbackDomainFilters := []fallbackDomainFilter{}
 	if len(config.FallbackFilter.Domain) != 0 {
-		fallbackDomainFilters := []fallbackDomainFilter{NewDomainFilter(config.FallbackFilter.Domain)}
+		fallbackDomainFilters = append(fallbackDomainFilters, NewDomainFilter(config.FallbackFilter.Domain))
-		r.fallbackDomainFilters = fallbackDomainFilters
 	}
 
+	if len(config.FallbackFilter.GeoSite) != 0 {
+		fallbackDomainFilters = append(fallbackDomainFilters, &geoSiteFilter{
+			matchers: config.FallbackFilter.GeoSite,
+		})
+	}
+	r.fallbackDomainFilters = fallbackDomainFilters
+
+	return r
+}
+
+func NewMainResolver(old *Resolver) *Resolver {
+	r := &Resolver{
+		ipv6:     old.ipv6,
+		main:     old.main,
+		lruCache: old.lruCache,
+		hosts:    old.hosts,
+		policy:   old.policy,
+	}
 	return r
 }

dns/util.go

@@ -1,12 +1,17 @@
 package dns
 
 import (
+	"context"
 	"crypto/tls"
+	"fmt"
 	"net"
 	"time"
 
 	"github.com/Dreamacro/clash/common/cache"
+	"github.com/Dreamacro/clash/component/dialer"
+	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/log"
+	"github.com/Dreamacro/clash/tunnel"
 
 	D "github.com/miekg/dns"
 )
@@ -51,7 +56,7 @@ func transform(servers []NameServer, resolver *Resolver) []dnsClient {
 	for _, s := range servers {
 		switch s.Net {
 		case "https":
-			ret = append(ret, newDoHClient(s.Addr, resolver))
+			ret = append(ret, newDoHClient(s.Addr, resolver, s.ProxyAdapter))
 			continue
 		case "dhcp":
 			ret = append(ret, newDHCPClient(s.Addr))
@@ -74,6 +79,7 @@ func transform(servers []NameServer, resolver *Resolver) []dnsClient {
 			host:         host,
 			iface:        s.Interface,
 			r:            resolver,
+			proxyAdapter: s.ProxyAdapter,
 		})
 	}
 	return ret
@@ -104,3 +110,63 @@ func msgToIP(msg *D.Msg) []net.IP {
 
 	return ips
 }
+
+type wrapPacketConn struct {
+	net.PacketConn
+	rAddr net.Addr
+}
+
+func (wpc *wrapPacketConn) Read(b []byte) (n int, err error) {
+	n, _, err = wpc.PacketConn.ReadFrom(b)
+	return n, err
+}
+
+func (wpc *wrapPacketConn) Write(b []byte) (n int, err error) {
+	return wpc.PacketConn.WriteTo(b, wpc.rAddr)
+}
+
+func (wpc *wrapPacketConn) RemoteAddr() net.Addr {
+	return wpc.rAddr
+}
+
+func dialContextWithProxyAdapter(ctx context.Context, adapterName string, network string, dstIP net.IP, port string, opts ...dialer.Option) (net.Conn, error) {
+	adapter, ok := tunnel.Proxies()[adapterName]
+	if !ok {
+		return nil, fmt.Errorf("proxy adapter [%s] not found", adapterName)
+	}
+
+	networkType := C.TCP
+	if network == "udp" {
+		if !adapter.SupportUDP() {
+			return nil, fmt.Errorf("proxy adapter [%s] UDP is not supported", adapterName)
+		}
+		networkType = C.UDP
+	}
+
+	addrType := C.AtypIPv4
+	if dstIP.To4() == nil {
+		addrType = C.AtypIPv6
+	}
+
+	metadata := &C.Metadata{
+		NetWork:  networkType,
+		AddrType: addrType,
+		Host:     "",
+		DstIP:    dstIP,
+		DstPort:  port,
+	}
+
+	if networkType == C.UDP {
+		packetConn, err := adapter.ListenPacketContext(ctx, metadata, opts...)
+		if err != nil {
+			return nil, err
+		}
+
+		return &wrapPacketConn{
+			PacketConn: packetConn,
+			rAddr:      metadata.UDPAddr(),
+		}, nil
+	}
+
+	return adapter.DialContext(ctx, metadata, opts...)
+}

hub/executor/executor.go

@@ -116,6 +116,7 @@ func updateExperimental(c *config.Config) {}
 func updateDNS(c *config.DNS, general *config.General) {
 	if !c.Enable {
 		resolver.DefaultResolver = nil
+		resolver.MainResolver = nil
 		resolver.DefaultHostMapper = nil
 		dns.ReCreateServer("", nil, nil)
 		return
@@ -133,12 +134,14 @@ func updateDNS(c *config.DNS, general *config.General) {
 			GeoIPCode: c.FallbackFilter.GeoIPCode,
 			IPCIDR:    c.FallbackFilter.IPCIDR,
 			Domain:    c.FallbackFilter.Domain,
+			GeoSite:   c.FallbackFilter.GeoSite,
 		},
 		Default: c.DefaultNameserver,
 		Policy:  c.NameServerPolicy,
 	}
 
 	r := dns.NewResolver(cfg)
+	mr := dns.NewMainResolver(r)
 	m := dns.NewEnhancer(cfg)
 
 	// reuse cache of old host mapper
@@ -147,6 +150,7 @@ func updateDNS(c *config.DNS, general *config.General) {
 	}
 
 	resolver.DefaultResolver = r
+	resolver.MainResolver = mr
 	resolver.DefaultHostMapper = m
 	if general.Tun.Enable && strings.EqualFold(general.Tun.Stack, "system") {
 		resolver.DefaultLocalServer = dns.NewLocalServer(r, m)

rule/geosite.go

@@ -46,29 +46,17 @@ func (gs *GEOSITE) RuleExtra() *C.RuleExtra {
 	return gs.ruleExtra
 }
 
+func (gs *GEOSITE) GetDomainMatcher() *router.DomainMatcher {
+	return gs.matcher
+}
+
 func NewGEOSITE(country string, adapter string, ruleExtra *C.RuleExtra) (*GEOSITE, error) {
-	geoLoaderName := "standard"
+	matcher, recordsCount, err := geodata.LoadGeoSiteMatcher(country)
-	geoLoader, err := geodata.GetGeoDataLoader(geoLoaderName)
 	if err != nil {
 		return nil, fmt.Errorf("load GeoSite data error, %s", err.Error())
 	}
 
-	domains, err := geoLoader.LoadGeoSite(country)
+	log.Infoln("Start initial GeoSite rule %s => %s, records: %d", country, adapter, recordsCount)
-	if err != nil {
-		return nil, fmt.Errorf("load GeoSite data error, %s", err.Error())
-	}
-
-	/**
-	linear: linear algorithm
-	matcher, err := router.NewDomainMatcher(domains)
-	mph：minimal perfect hash algorithm
-	*/
-	matcher, err := router.NewMphMatcherGroup(domains)
-	if err != nil {
-		return nil, fmt.Errorf("load GeoSite data error, %s", err.Error())
-	}
-
-	log.Infoln("Start initial GeoSite rule %s => %s, records: %d", country, adapter, len(domains))
 
 	geoSite := &GEOSITE{
 		country:   country,