chore: temporary update general in ParseRawConfig and rollback before…

… its return

config/config.go

@@ -9,6 +9,7 @@ import (
 	"net/url"
 	"strings"
 	"time"
+	_ "unsafe"
 
 	"github.com/metacubex/mihomo/adapter"
 	"github.com/metacubex/mihomo/adapter/outbound"
@@ -19,12 +20,9 @@ import (
 	"github.com/metacubex/mihomo/component/cidr"
 	"github.com/metacubex/mihomo/component/fakeip"
 	"github.com/metacubex/mihomo/component/geodata"
-	mihomoHttp "github.com/metacubex/mihomo/component/http"
 	P "github.com/metacubex/mihomo/component/process"
 	"github.com/metacubex/mihomo/component/resolver"
-	"github.com/metacubex/mihomo/component/resource"
 	"github.com/metacubex/mihomo/component/sniffer"
-	tlsC "github.com/metacubex/mihomo/component/tls"
 	"github.com/metacubex/mihomo/component/trie"
 	C "github.com/metacubex/mihomo/constant"
 	providerTypes "github.com/metacubex/mihomo/constant/provider"
@@ -588,10 +586,11 @@ func ParseRawConfig(rawCfg *RawConfig) (*Config, error) {
 	}
 	config.General = general
 
-	if len(config.General.GlobalClientFingerprint) != 0 {
-		log.Debugln("GlobalClientFingerprint: %s", config.General.GlobalClientFingerprint)
-		tlsC.SetGlobalUtlsClient(config.General.GlobalClientFingerprint)
-	}
+	// We need to temporarily apply some configuration in general and roll back after parsing the complete configuration.
+	// The loading and downloading of geodata in the parseRules and parseRuleProviders rely on these.
+	// This implementation is very disgusting, but there is currently no better solution
+	rollback := temporaryUpdateGeneral(config.General)
+	defer rollback()
 
 	controller, err := parseController(rawCfg)
 	if err != nil {
@@ -707,17 +706,10 @@ func ParseRawConfig(rawCfg *RawConfig) (*Config, error) {
 	return config, nil
 }
 
-func parseGeneral(cfg *RawConfig) (*General, error) {
-	geodata.SetGeodataMode(cfg.GeodataMode)
-	geodata.SetLoader(cfg.GeodataLoader)
-	geodata.SetSiteMatcher(cfg.GeositeMatcher)
-	geodata.SetGeoIpUrl(cfg.GeoXUrl.GeoIp)
-	geodata.SetGeoSiteUrl(cfg.GeoXUrl.GeoSite)
-	geodata.SetMmdbUrl(cfg.GeoXUrl.Mmdb)
-	geodata.SetASNUrl(cfg.GeoXUrl.ASN)
-	mihomoHttp.SetUA(cfg.GlobalUA)
-	resource.SetETag(cfg.ETagSupport)
+//go:linkname temporaryUpdateGeneral
+func temporaryUpdateGeneral(general *General) func()
 
+func parseGeneral(cfg *RawConfig) (*General, error) {
 	return &General{
 		Inbound: Inbound{
 			Port:              cfg.Port,
@@ -751,6 +743,7 @@ func parseGeneral(cfg *RawConfig) (*General, error) {
 		GeoUpdateInterval:       cfg.GeoUpdateInterval,
 		GeodataMode:             cfg.GeodataMode,
 		GeodataLoader:           cfg.GeodataLoader,
+		GeositeMatcher:          cfg.GeositeMatcher,
 		TCPConcurrent:           cfg.TCPConcurrent,
 		FindProcessMode:         cfg.FindProcessMode,
 		GlobalClientFingerprint: cfg.GlobalClientFingerprint,
@@ -1265,10 +1258,9 @@ func parseNameServer(servers []string, respectRules bool, preferH3 bool) ([]dns.
 	return nameservers, nil
 }
 
-func init() {
-	dns.ParseNameServer = func(servers []string) ([]dns.NameServer, error) { // using by wireguard
-		return parseNameServer(servers, false, false)
-	}
+//go:linkname dnsParseNameServer github.com/metacubex/mihomo/dns.ParseNameServer
+func dnsParseNameServer(servers []string) ([]dns.NameServer, error) { // using by wireguard
+	return parseNameServer(servers, false, false)
 }
 
 func parsePureDNSServer(server string) string {

dns/resolver.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"net/netip"
 	"time"
+	_ "unsafe"
 
 	"github.com/metacubex/mihomo/common/arc"
 	"github.com/metacubex/mihomo/common/lru"
@@ -571,4 +572,5 @@ func NewResolver(config Config) (rs Resolvers) {
 	return
 }
 
-var ParseNameServer func(servers []string) ([]NameServer, error) // define in config/config.go
+//go:linkname ParseNameServer
+func ParseNameServer(servers []string) ([]NameServer, error) // define in config/config.go

hub/executor/executor.go

@@ -9,14 +9,15 @@ import (
 	"strconv"
 	"sync"
 	"time"
+	_ "unsafe"
 
 	"github.com/metacubex/mihomo/adapter"
 	"github.com/metacubex/mihomo/adapter/inbound"
 	"github.com/metacubex/mihomo/adapter/outboundgroup"
 	"github.com/metacubex/mihomo/component/auth"
 	"github.com/metacubex/mihomo/component/ca"
 	"github.com/metacubex/mihomo/component/dialer"
-	G "github.com/metacubex/mihomo/component/geodata"
+	"github.com/metacubex/mihomo/component/geodata"
 	mihomoHttp "github.com/metacubex/mihomo/component/http"
 	"github.com/metacubex/mihomo/component/iface"
 	"github.com/metacubex/mihomo/component/keepalive"
@@ -101,7 +102,7 @@ func ApplyConfig(cfg *config.Config, force bool) {
 	updateRules(cfg.Rules, cfg.SubRules, cfg.RuleProviders)
 	updateSniffer(cfg.Sniffer)
 	updateHosts(cfg.Hosts)
-	updateGeneral(cfg.General)
+	updateGeneral(cfg.General, true)
 	updateNTP(cfg.NTP)
 	updateDNS(cfg.DNS, cfg.General.IPv6)
 	updateListeners(cfg.General, cfg.Listeners, force)
@@ -161,16 +162,16 @@ func GetGeneral() *config.General {
 		Interface:    dialer.DefaultInterface.Load(),
 		RoutingMark:  int(dialer.DefaultRoutingMark.Load()),
 		GeoXUrl: config.GeoXUrl{
-			GeoIp:   G.GeoIpUrl(),
-			Mmdb:    G.MmdbUrl(),
-			ASN:     G.ASNUrl(),
-			GeoSite: G.GeoSiteUrl(),
+			GeoIp:   geodata.GeoIpUrl(),
+			Mmdb:    geodata.MmdbUrl(),
+			ASN:     geodata.ASNUrl(),
+			GeoSite: geodata.GeoSiteUrl(),
 		},
 		GeoAutoUpdate:           updater.GeoAutoUpdate(),
 		GeoUpdateInterval:       updater.GeoUpdateInterval(),
-		GeodataMode:             G.GeodataMode(),
-		GeodataLoader:           G.LoaderName(),
-		GeositeMatcher:          G.SiteMatcherName(),
+		GeodataMode:             geodata.GeodataMode(),
+		GeodataLoader:           geodata.LoaderName(),
+		GeositeMatcher:          geodata.SiteMatcherName(),
 		TCPConcurrent:           dialer.GetTcpConcurrent(),
 		FindProcessMode:         tunnel.FindProcessMode(),
 		Sniffing:                tunnel.IsSniffing(),
@@ -408,13 +409,22 @@ func updateUpdater(cfg *config.Config) {
 	updater.DefaultUiUpdater.AutoDownloadUI()
 }
 
-func updateGeneral(general *config.General) {
+//go:linkname temporaryUpdateGeneral github.com/metacubex/mihomo/config.temporaryUpdateGeneral
+func temporaryUpdateGeneral(general *config.General) func() {
+	oldGeneral := GetGeneral()
+	updateGeneral(general, false)
+	return func() {
+		updateGeneral(oldGeneral, false)
+	}
+}
+
+func updateGeneral(general *config.General, logging bool) {
 	tunnel.SetMode(general.Mode)
 	tunnel.SetFindProcessMode(general.FindProcessMode)
 	resolver.DisableIPv6 = !general.IPv6
 
-	if general.TCPConcurrent {
-		dialer.SetTcpConcurrent(general.TCPConcurrent)
+	dialer.SetTcpConcurrent(general.TCPConcurrent)
+	if logging && general.TCPConcurrent {
 		log.Infoln("Use tcp concurrent")
 	}
 
@@ -429,13 +439,23 @@ func updateGeneral(general *config.General) {
 
 	dialer.DefaultInterface.Store(general.Interface)
 	dialer.DefaultRoutingMark.Store(int32(general.RoutingMark))
-	if general.RoutingMark > 0 {
+	if logging && general.RoutingMark > 0 {
 		log.Infoln("Use routing mark: %#x", general.RoutingMark)
 	}
 
 	iface.FlushCache()
-	G.SetLoader(general.GeodataLoader)
-	G.SetSiteMatcher(general.GeositeMatcher)
+
+	geodata.SetGeodataMode(general.GeodataMode)
+	geodata.SetLoader(general.GeodataLoader)
+	geodata.SetSiteMatcher(general.GeositeMatcher)
+	geodata.SetGeoIpUrl(general.GeoXUrl.GeoIp)
+	geodata.SetGeoSiteUrl(general.GeoXUrl.GeoSite)
+	geodata.SetMmdbUrl(general.GeoXUrl.Mmdb)
+	geodata.SetASNUrl(general.GeoXUrl.ASN)
+	mihomoHttp.SetUA(general.GlobalUA)
+	resource.SetETag(general.ETagSupport)
+
+	tlsC.SetGlobalUtlsClient(general.GlobalClientFingerprint)
 }
 
 func updateUsers(users []auth.AuthUser) {