435 lines
10 KiB
Go
435 lines
10 KiB
Go
package executor
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import (
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"fmt"
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"github.com/Dreamacro/clash/listener/inner"
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"net/netip"
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"os"
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"runtime"
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"sync"
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"github.com/Dreamacro/clash/adapter"
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"github.com/Dreamacro/clash/adapter/outboundgroup"
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"github.com/Dreamacro/clash/component/auth"
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"github.com/Dreamacro/clash/component/dialer"
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G "github.com/Dreamacro/clash/component/geodata"
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"github.com/Dreamacro/clash/component/iface"
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"github.com/Dreamacro/clash/component/profile"
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"github.com/Dreamacro/clash/component/profile/cachefile"
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"github.com/Dreamacro/clash/component/resolver"
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SNI "github.com/Dreamacro/clash/component/sniffer"
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"github.com/Dreamacro/clash/component/trie"
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"github.com/Dreamacro/clash/config"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/constant/provider"
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"github.com/Dreamacro/clash/dns"
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P "github.com/Dreamacro/clash/listener"
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authStore "github.com/Dreamacro/clash/listener/auth"
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"github.com/Dreamacro/clash/listener/tproxy"
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"github.com/Dreamacro/clash/log"
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"github.com/Dreamacro/clash/tunnel"
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)
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var mux sync.Mutex
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func readConfig(path string) ([]byte, error) {
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if _, err := os.Stat(path); os.IsNotExist(err) {
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return nil, err
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}
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data, err := os.ReadFile(path)
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if err != nil {
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return nil, err
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}
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if len(data) == 0 {
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return nil, fmt.Errorf("configuration file %s is empty", path)
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}
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return data, err
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}
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// Parse config with default config path
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func Parse() (*config.Config, error) {
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return ParseWithPath(C.Path.Config())
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}
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// ParseWithPath parse config with custom config path
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func ParseWithPath(path string) (*config.Config, error) {
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buf, err := readConfig(path)
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if err != nil {
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return nil, err
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}
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return ParseWithBytes(buf)
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}
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// ParseWithBytes config with buffer
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func ParseWithBytes(buf []byte) (*config.Config, error) {
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return config.Parse(buf)
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}
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// ApplyConfig dispatch configure to all parts
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func ApplyConfig(cfg *config.Config, force bool) {
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mux.Lock()
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defer mux.Unlock()
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updateUsers(cfg.Users)
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updateProxies(cfg.Proxies, cfg.Providers)
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updateRules(cfg.Rules, cfg.RuleProviders)
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updateSniffer(cfg.Sniffer)
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updateHosts(cfg.Hosts)
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initInnerTcp()
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updateDNS(cfg.DNS)
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loadProxyProvider(cfg.Providers)
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updateProfile(cfg)
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loadRuleProvider(cfg.RuleProviders)
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updateGeneral(cfg.General, force)
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updateIPTables(cfg)
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updateTun(cfg.Tun, cfg.DNS)
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updateExperimental(cfg)
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log.SetLevel(cfg.General.LogLevel)
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}
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func initInnerTcp() {
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inner.New(tunnel.TCPIn())
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}
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func GetGeneral() *config.General {
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ports := P.GetPorts()
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var authenticator []string
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if auth := authStore.Authenticator(); auth != nil {
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authenticator = auth.Users()
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}
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general := &config.General{
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Inbound: config.Inbound{
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Port: ports.Port,
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SocksPort: ports.SocksPort,
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RedirPort: ports.RedirPort,
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TProxyPort: ports.TProxyPort,
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MixedPort: ports.MixedPort,
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Authentication: authenticator,
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AllowLan: P.AllowLan(),
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BindAddress: P.BindAddress(),
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},
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Mode: tunnel.Mode(),
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LogLevel: log.Level(),
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IPv6: !resolver.DisableIPv6,
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GeodataLoader: G.LoaderName(),
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Tun: P.GetTunConf(),
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}
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return general
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}
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func updateExperimental(c *config.Config) {}
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func updateDNS(c *config.DNS) {
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if !c.Enable {
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resolver.DefaultResolver = nil
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resolver.DefaultHostMapper = nil
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resolver.DefaultLocalServer = nil
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dns.ReCreateServer("", nil, nil)
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return
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}
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cfg := dns.Config{
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Main: c.NameServer,
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Fallback: c.Fallback,
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IPv6: c.IPv6,
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EnhancedMode: c.EnhancedMode,
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Pool: c.FakeIPRange,
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Hosts: c.Hosts,
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FallbackFilter: dns.FallbackFilter{
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GeoIP: c.FallbackFilter.GeoIP,
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GeoIPCode: c.FallbackFilter.GeoIPCode,
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IPCIDR: c.FallbackFilter.IPCIDR,
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Domain: c.FallbackFilter.Domain,
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GeoSite: c.FallbackFilter.GeoSite,
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},
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Default: c.DefaultNameserver,
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Policy: c.NameServerPolicy,
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ProxyServer: c.ProxyServerNameserver,
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}
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resolver.DisableIPv6 = !cfg.IPv6
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r := dns.NewResolver(cfg)
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pr := dns.NewProxyServerHostResolver(r)
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m := dns.NewEnhancer(cfg)
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// reuse cache of old host mapper
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if old := resolver.DefaultHostMapper; old != nil {
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m.PatchFrom(old.(*dns.ResolverEnhancer))
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}
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resolver.DefaultResolver = r
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resolver.DefaultHostMapper = m
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resolver.DefaultLocalServer = dns.NewLocalServer(r, m)
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if pr.HasProxyServer() {
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resolver.ProxyServerHostResolver = pr
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}
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dns.ReCreateServer(c.Listen, r, m)
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}
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func updateHosts(tree *trie.DomainTrie[netip.Addr]) {
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resolver.DefaultHosts = tree
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}
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func updateProxies(proxies map[string]C.Proxy, providers map[string]provider.ProxyProvider) {
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tunnel.UpdateProxies(proxies, providers)
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}
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func updateRules(rules []C.Rule, ruleProviders map[string]provider.RuleProvider) {
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tunnel.UpdateRules(rules, ruleProviders)
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}
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func loadProvider(pv provider.Provider) {
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if pv.VehicleType() == provider.Compatible {
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log.Infoln("Start initial compatible provider %s", pv.Name())
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} else {
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log.Infoln("Start initial provider %s", (pv).Name())
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}
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if err := pv.Initial(); err != nil {
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switch pv.Type() {
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case provider.Proxy:
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{
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log.Warnln("initial proxy provider %s error: %v", (pv).Name(), err)
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}
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case provider.Rule:
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{
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log.Warnln("initial rule provider %s error: %v", (pv).Name(), err)
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}
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}
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}
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}
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func loadRuleProvider(ruleProviders map[string]provider.RuleProvider) {
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wg := sync.WaitGroup{}
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ch := make(chan struct{}, concurrentCount)
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for _, ruleProvider := range ruleProviders {
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ruleProvider := ruleProvider
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wg.Add(1)
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ch <- struct{}{}
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go func() {
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defer func() { <-ch; wg.Done() }()
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loadProvider(ruleProvider)
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}()
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}
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wg.Wait()
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}
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func loadProxyProvider(proxyProviders map[string]provider.ProxyProvider) {
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// limit concurrent size
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wg := sync.WaitGroup{}
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ch := make(chan struct{}, concurrentCount)
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for _, proxyProvider := range proxyProviders {
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proxyProvider := proxyProvider
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wg.Add(1)
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ch <- struct{}{}
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go func() {
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defer func() { <-ch; wg.Done() }()
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loadProvider(proxyProvider)
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}()
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}
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wg.Wait()
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}
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func updateTun(tun *config.Tun, dns *config.DNS) {
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var tunAddressPrefix *netip.Prefix
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if dns.FakeIPRange != nil {
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tunAddressPrefix = dns.FakeIPRange.IPNet()
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}
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P.ReCreateTun(tun, tunAddressPrefix, tunnel.TCPIn(), tunnel.UDPIn())
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}
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func updateSniffer(sniffer *config.Sniffer) {
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if sniffer.Enable {
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dispatcher, err := SNI.NewSnifferDispatcher(sniffer.Sniffers, sniffer.ForceDomain, sniffer.SkipDomain, sniffer.Ports)
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if err != nil {
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log.Warnln("initial sniffer failed, err:%v", err)
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}
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tunnel.UpdateSniffer(dispatcher)
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log.Infoln("Sniffer is loaded and working")
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} else {
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dispatcher, err := SNI.NewCloseSnifferDispatcher()
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if err != nil {
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log.Warnln("initial sniffer failed, err:%v", err)
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}
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tunnel.UpdateSniffer(dispatcher)
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log.Infoln("Sniffer is closed")
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}
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}
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func updateGeneral(general *config.General, force bool) {
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log.SetLevel(general.LogLevel)
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tunnel.SetMode(general.Mode)
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dialer.DisableIPv6 = !general.IPv6
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if !dialer.DisableIPv6 {
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log.Infoln("Use IPv6")
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} else {
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resolver.DisableIPv6 = true
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}
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if general.TCPConcurrent {
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dialer.SetDial(general.TCPConcurrent)
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log.Infoln("Use tcp concurrent")
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}
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adapter.UnifiedDelay.Store(general.UnifiedDelay)
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dialer.DefaultInterface.Store(general.Interface)
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if dialer.DefaultInterface.Load() != "" {
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log.Infoln("Use interface name: %s", general.Interface)
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}
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dialer.DefaultRoutingMark.Store(int32(general.RoutingMark))
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if general.RoutingMark > 0 {
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log.Infoln("Use routing mark: %#x", general.RoutingMark)
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}
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iface.FlushCache()
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if !force {
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return
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}
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geodataLoader := general.GeodataLoader
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G.SetLoader(geodataLoader)
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allowLan := general.AllowLan
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P.SetAllowLan(allowLan)
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bindAddress := general.BindAddress
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P.SetBindAddress(bindAddress)
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tcpIn := tunnel.TCPIn()
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udpIn := tunnel.UDPIn()
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P.ReCreateHTTP(general.Port, tcpIn)
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P.ReCreateSocks(general.SocksPort, tcpIn, udpIn)
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P.ReCreateRedir(general.RedirPort, tcpIn, udpIn)
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P.ReCreateTProxy(general.TProxyPort, tcpIn, udpIn)
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P.ReCreateMixed(general.MixedPort, tcpIn, udpIn)
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}
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func updateUsers(users []auth.AuthUser) {
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authenticator := auth.NewAuthenticator(users)
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authStore.SetAuthenticator(authenticator)
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if authenticator != nil {
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log.Infoln("Authentication of local server updated")
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}
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}
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func updateProfile(cfg *config.Config) {
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profileCfg := cfg.Profile
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profile.StoreSelected.Store(profileCfg.StoreSelected)
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if profileCfg.StoreSelected {
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patchSelectGroup(cfg.Proxies)
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}
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}
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func patchSelectGroup(proxies map[string]C.Proxy) {
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mapping := cachefile.Cache().SelectedMap()
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if mapping == nil {
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return
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}
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for name, proxy := range proxies {
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outbound, ok := proxy.(*adapter.Proxy)
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if !ok {
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continue
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}
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selector, ok := outbound.ProxyAdapter.(*outboundgroup.Selector)
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if !ok {
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continue
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}
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selected, exist := mapping[name]
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if !exist {
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continue
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}
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selector.Set(selected)
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}
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}
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func updateIPTables(cfg *config.Config) {
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tproxy.CleanupTProxyIPTables()
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iptables := cfg.IPTables
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if runtime.GOOS != "linux" || !iptables.Enable {
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return
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}
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var err error
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defer func() {
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if err != nil {
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log.Errorln("[IPTABLES] setting iptables failed: %s", err.Error())
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os.Exit(2)
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}
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}()
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if cfg.Tun.Enable {
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err = fmt.Errorf("when tun is enabled, iptables cannot be set automatically")
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return
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}
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var (
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inboundInterface = "lo"
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bypass = iptables.Bypass
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tProxyPort = cfg.General.TProxyPort
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dnsCfg = cfg.DNS
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)
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if tProxyPort == 0 {
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err = fmt.Errorf("tproxy-port must be greater than zero")
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return
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}
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if !dnsCfg.Enable {
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err = fmt.Errorf("DNS server must be enable")
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return
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}
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dnsPort, err := netip.ParseAddrPort(dnsCfg.Listen)
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if err != nil {
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err = fmt.Errorf("DNS server must be correct")
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return
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}
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if iptables.InboundInterface != "" {
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inboundInterface = iptables.InboundInterface
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}
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if dialer.DefaultRoutingMark.Load() == 0 {
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dialer.DefaultRoutingMark.Store(2158)
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}
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err = tproxy.SetTProxyIPTables(inboundInterface, bypass, uint16(tProxyPort), dnsPort.Port())
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if err != nil {
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return
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}
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log.Infoln("[IPTABLES] Setting iptables completed")
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}
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func Shutdown() {
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P.Cleanup()
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tproxy.CleanupTProxyIPTables()
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resolver.StoreFakePoolState()
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log.Warnln("Clash shutting down")
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}
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