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Chore: refactor TUN

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This commit is contained in:
yaling888
2022-03-09 05:08:35 +08:00
parent d49871224c
commit 8333815e95
64 changed files with 2227 additions and 2699 deletions
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97
hub/executor/executor.go
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@ -24,7 +24,6 @@ import (
P "github.com/Dreamacro/clash/listener"
authStore "github.com/Dreamacro/clash/listener/auth"
"github.com/Dreamacro/clash/listener/tproxy"
"github.com/Dreamacro/clash/listener/tun/dev"
"github.com/Dreamacro/clash/log"
"github.com/Dreamacro/clash/tunnel"
)
@ -79,9 +78,10 @@ func ApplyConfig(cfg *config.Config, force bool) {
updateRules(cfg.Rules)
updateHosts(cfg.Hosts)
updateProfile(cfg)
updateIPTables(cfg.DNS, cfg.General)
updateDNS(cfg.DNS, cfg.General)
updateDNS(cfg.DNS, cfg.Tun)
updateGeneral(cfg.General, force)
updateIPTables(cfg.DNS, cfg.General.TProxyPort, cfg.General.Interface, cfg.Tun.Enable)
updateTun(cfg.Tun)
updateExperimental(cfg)
log.SetLevel(cfg.General.LogLevel)
@ -101,7 +101,6 @@ func GetGeneral() *config.General {
RedirPort: ports.RedirPort,
TProxyPort: ports.TProxyPort,
MixedPort: ports.MixedPort,
Tun: P.Tun(),
Authentication: authenticator,
AllowLan: P.AllowLan(),
BindAddress: P.BindAddress(),
@ -116,15 +115,7 @@ func GetGeneral() *config.General {
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
}
func updateDNS(c *config.DNS, t *config.Tun) {
cfg := dns.Config{
Main: c.NameServer,
Fallback: c.Fallback,
@ -155,9 +146,22 @@ func updateDNS(c *config.DNS, general *config.General) {
resolver.DefaultResolver = r
resolver.MainResolver = mr
resolver.DefaultHostMapper = m
resolver.DefaultLocalServer = dns.NewLocalServer(r, m)
dns.ReCreateServer(c.Listen, r, m)
if t.Enable {
resolver.DefaultLocalServer = dns.NewLocalServer(r, m)
}
if c.Enable {
dns.ReCreateServer(c.Listen, r, m)
} else {
if !t.Enable {
resolver.DefaultResolver = nil
resolver.MainResolver = nil
resolver.DefaultHostMapper = nil
resolver.DefaultLocalServer = nil
}
dns.ReCreateServer("", nil, nil)
}
}
func updateHosts(tree *trie.DomainTrie) {
@ -172,29 +176,24 @@ func updateRules(rules []C.Rule) {
tunnel.UpdateRules(rules)
}
func updateTun(tun *config.Tun) {
P.ReCreateTun(tun, tunnel.TCPIn(), tunnel.UDPIn())
}
func updateGeneral(general *config.General, force bool) {
tunnel.SetMode(general.Mode)
resolver.DisableIPv6 = !general.IPv6
if (general.Tun.Enable || general.TProxyPort != 0) && general.Interface == "" {
autoDetectInterfaceName, err := dev.GetAutoDetectInterface()
if err == nil {
if autoDetectInterfaceName != "" && autoDetectInterfaceName != "<nil>" {
general.Interface = autoDetectInterfaceName
} else {
log.Debugln("Auto detect interface name is empty.")
}
} else {
log.Debugln("Can not find auto detect interface. %s", err.Error())
}
dialer.DefaultInterface.Store(general.Interface)
if dialer.DefaultInterface.Load() != "" {
log.Infoln("Use interface name: %s", general.Interface)
}
log.Infoln("Use interface name: %s", general.Interface)
dialer.DefaultInterface.Store(general.Interface)
if general.RoutingMark > 0 {
if general.RoutingMark > 0 || (general.RoutingMark == 0 && general.TProxyPort == 0) {
dialer.DefaultRoutingMark.Store(int32(general.RoutingMark))
if general.RoutingMark > 0 {
log.Infoln("Use routing mark: %#x", general.RoutingMark)
}
}
iface.FlushCache()
@ -217,7 +216,6 @@ func updateGeneral(general *config.General, force bool) {
P.ReCreateRedir(general.RedirPort, tcpIn, udpIn)
P.ReCreateTProxy(general.TProxyPort, tcpIn, udpIn)
P.ReCreateMixed(general.MixedPort, tcpIn, udpIn)
P.ReCreateTun(general.Tun, tcpIn, udpIn)
}
func updateUsers(users []auth.AuthUser) {
@ -263,8 +261,28 @@ func patchSelectGroup(proxies map[string]C.Proxy) {
}
}
func updateIPTables(dns *config.DNS, general *config.General) {
if runtime.GOOS != "linux" || dns.Listen == "" || general.TProxyPort == 0 || general.Tun.Enable {
func updateIPTables(dns *config.DNS, tProxyPort int, interfaceName string, tunEnable bool) {
tproxy.CleanUpTProxyLinuxIPTables()
if runtime.GOOS != "linux" || tProxyPort == 0 {
return
}
var err error
defer func() {
if err != nil {
log.Errorln("Setting iptables failed: %s", err.Error())
os.Exit(2)
}
}()
if !dns.Enable || dns.Listen == "" {
err = fmt.Errorf("DNS server must be enable")
return
}
if tunEnable {
err = fmt.Errorf("TUN device must be disabe")
return
}
@ -278,23 +296,14 @@ func updateIPTables(dns *config.DNS, general *config.General) {
return
}
tproxy.CleanUpTProxyLinuxIPTables()
if dialer.DefaultRoutingMark.Load() == 0 {
dialer.DefaultRoutingMark.Store(2158)
}
err = tproxy.SetTProxyLinuxIPTables(general.Interface, general.TProxyPort, dnsPort)
if err != nil {
log.Errorln("Can not setting iptables for TProxy on linux, %s", err.Error())
os.Exit(2)
}
err = tproxy.SetTProxyLinuxIPTables(interfaceName, tProxyPort, dnsPort)
}
func Cleanup() {
P.Cleanup()
if runtime.GOOS == "linux" {
tproxy.CleanUpTProxyLinuxIPTables()
}