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Enhance DNS and Dialer (#341)

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This commit is contained in:
Jim Han 2021-03-07 00:29:17 +08:00 committed by GitHub
parent ad1807dd99
commit db32ce6fd9
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GPG key ID: 4AEE18F83AFDEB23
22 changed files with 682 additions and 290 deletions
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95
app/dns/dohdns.go
View file

@ -13,6 +13,7 @@ import (
"time"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/log"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/net/cnc"
"github.com/xtls/xray-core/common/protocol/dns"
@ -47,6 +48,56 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, clientIP net.
s := baseDOHNameServer(url, "DOH", clientIP)
s.dispatcher = dispatcher
tr := &http.Transport{
MaxIdleConns: 30,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 30 * time.Second,
ForceAttemptHTTP2: true,
DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
dispatcherCtx := context.Background()
if inbound := session.InboundFromContext(ctx); inbound != nil {
dispatcherCtx = session.ContextWithInbound(dispatcherCtx, inbound)
}
if content := session.ContentFromContext(ctx); content != nil {
dispatcherCtx = session.ContextWithContent(dispatcherCtx, content)
}
dispatcherCtx = internet.ContextWithLookupDomain(dispatcherCtx, internet.LookupDomainFromContext(ctx))
dest, err := net.ParseDestination(network + ":" + addr)
if err != nil {
return nil, err
}
dispatcherCtx = log.ContextWithAccessMessage(dispatcherCtx, &log.AccessMessage{
From: "DoH",
To: s.dohURL,
Status: log.AccessAccepted,
Reason: "",
})
link, err := s.dispatcher.Dispatch(dispatcherCtx, dest)
if err != nil {
return nil, err
}
cc := common.ChainedClosable{}
if cw, ok := link.Writer.(common.Closable); ok {
cc = append(cc, cw)
}
if cr, ok := link.Reader.(common.Closable); ok {
cc = append(cc, cr)
}
return cnc.NewConnection(
cnc.ConnectionInputMulti(link.Writer),
cnc.ConnectionOutputMulti(link.Reader),
cnc.ConnectionOnClose(cc),
), nil
},
}
s.httpClient = &http.Client{
Timeout: time.Second * 180,
Transport: tr,
}
return s, nil
}
@ -64,6 +115,12 @@ func NewDoHLocalNameServer(url *url.URL, clientIP net.IP) *DoHNameServer {
return nil, err
}
conn, err := internet.DialSystem(ctx, dest, nil)
log.Record(&log.AccessMessage{
From: "DoH",
To: s.dohURL,
Status: log.AccessAccepted,
Detour: "local",
})
if err != nil {
return nil, err
}
@ -249,41 +306,6 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
hc := s.httpClient
// Dispatched connection will be closed (interrupted) after each request
// This makes DOH inefficient without a keep-alived connection
// See: core/app/proxyman/outbound/handler.go:113
// Using mux (https request wrapped in a stream layer) improves the situation.
// Recommend to use NewDoHLocalNameServer (DOHL:) if xray instance is running on
// a normal network eg. the server side of xray
if s.dispatcher != nil {
tr := &http.Transport{
MaxIdleConns: 30,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 30 * time.Second,
ForceAttemptHTTP2: true,
DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
dest, err := net.ParseDestination(network + ":" + addr)
if err != nil {
return nil, err
}
link, err := s.dispatcher.Dispatch(ctx, dest)
if err != nil {
return nil, err
}
return cnc.NewConnection(
cnc.ConnectionInputMulti(link.Writer),
cnc.ConnectionOutputMulti(link.Reader),
), nil
},
}
hc = &http.Client{
Timeout: time.Second * 180,
Transport: tr,
}
}
resp, err := hc.Do(req.WithContext(ctx))
if err != nil {
return nil, err
@ -347,6 +369,7 @@ func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option IPOpt
ips, err := s.findIPsForDomain(fqdn, option)
if err != errRecordNotFound {
newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
log.Record(&log.DNSLog{s.name, domain, ips, log.DNSCacheHit, 0, err})
return ips, err
}
@ -377,10 +400,12 @@ func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option IPOpt
close(done)
}()
s.sendQuery(ctx, fqdn, option)
start := time.Now()
for {
ips, err := s.findIPsForDomain(fqdn, option)
if err != errRecordNotFound {
log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
return ips, err
}

2
app/dns/server.go
View file

@ -22,6 +22,7 @@ import (
"github.com/xtls/xray-core/features"
"github.com/xtls/xray-core/features/dns"
"github.com/xtls/xray-core/features/routing"
"github.com/xtls/xray-core/transport/internet"
)
// Server is a DNS rely server.
@ -301,6 +302,7 @@ func (s *Server) queryIPTimeout(idx int, client Client, domain string, option IP
Tag: s.tag,
})
}
ctx = internet.ContextWithLookupDomain(ctx, Fqdn(domain))
ips, err := client.QueryIP(ctx, domain, option)
cancel()

12
app/dns/udpns.go
View file

@ -2,12 +2,14 @@ package dns
import (
"context"
"github.com/xtls/xray-core/transport/internet"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/log"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/protocol/dns"
udp_proto "github.com/xtls/xray-core/common/protocol/udp"
@ -190,9 +192,16 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option
if inbound := session.InboundFromContext(ctx); inbound != nil {
udpCtx = session.ContextWithInbound(udpCtx, inbound)
}
udpCtx = internet.ContextWithLookupDomain(udpCtx, internet.LookupDomainFromContext(ctx))
udpCtx = session.ContextWithContent(udpCtx, &session.Content{
Protocol: "dns",
})
udpCtx = log.ContextWithAccessMessage(udpCtx, &log.AccessMessage{
From: "DNS",
To: s.address,
Status: log.AccessAccepted,
Reason: "",
})
s.udpServer.Dispatch(udpCtx, s.address, b)
}
}
@ -241,6 +250,7 @@ func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option I
ips, err := s.findIPsForDomain(fqdn, option)
if err != errRecordNotFound {
newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
log.Record(&log.DNSLog{s.name, domain, ips, log.DNSCacheHit, 0, err})
return ips, err
}
@ -271,10 +281,12 @@ func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option I
close(done)
}()
s.sendQuery(ctx, fqdn, option)
start := time.Now()
for {
ips, err := s.findIPsForDomain(fqdn, option)
if err != errRecordNotFound {
log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
return ips, err
}

30
app/log/config.pb.go
View file

@ -88,6 +88,7 @@ type Config struct {
ErrorLogPath string `protobuf:"bytes,3,opt,name=error_log_path,json=errorLogPath,proto3" json:"error_log_path,omitempty"`
AccessLogType LogType `protobuf:"varint,4,opt,name=access_log_type,json=accessLogType,proto3,enum=xray.app.log.LogType" json:"access_log_type,omitempty"`
AccessLogPath string `protobuf:"bytes,5,opt,name=access_log_path,json=accessLogPath,proto3" json:"access_log_path,omitempty"`
EnableDnsLog bool `protobuf:"varint,6,opt,name=enable_dns_log,json=enableDnsLog,proto3" json:"enable_dns_log,omitempty"`
}
func (x *Config) Reset() {
@ -157,13 +158,20 @@ func (x *Config) GetAccessLogPath() string {
return ""
}
func (x *Config) GetEnableDnsLog() bool {
if x != nil {
return x.EnableDnsLog
}
return false
}
var File_app_log_config_proto protoreflect.FileDescriptor
var file_app_log_config_proto_rawDesc = []byte{
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@ -181,15 +189,17 @@ var file_app_log_config_proto_rawDesc = []byte{
0x65, 0x73, 0x73, 0x4c, 0x6f, 0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x26, 0x0a, 0x0f, 0x61, 0x63,
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}
var (

1
app/log/config.proto
View file

@ -22,4 +22,5 @@ message Config {
LogType access_log_type = 4;
string access_log_path = 5;
bool enable_dns_log = 6;
}

6
app/log/log.go
View file

@ -17,6 +17,7 @@ type Instance struct {
accessLogger log.Handler
errorLogger log.Handler
active bool
dns bool
}
// New creates a new log.Instance based on the given config.
@ -24,6 +25,7 @@ func New(ctx context.Context, config *Config) (*Instance, error) {
g := &Instance{
config: config,
active: false,
dns: config.EnableDnsLog,
}
log.RegisterHandler(g)
@ -103,6 +105,10 @@ func (g *Instance) Handle(msg log.Message) {
if g.accessLogger != nil {
g.accessLogger.Handle(msg)
}
case *log.DNSLog:
if g.dns && g.accessLogger != nil {
g.accessLogger.Handle(msg)
}
case *log.GeneralMessage:
if g.errorLogger != nil && msg.Severity <= g.config.ErrorLogLevel {
g.errorLogger.Handle(msg)

59
common/log/dns.go Normal file
View file

@ -0,0 +1,59 @@
package log
import (
"net"
"strings"
"time"
)
type DNSLog struct {
Server string
Domain string
Result []net.IP
Status dnsStatus
Elapsed time.Duration
Error error
}
func (l *DNSLog) String() string {
builder := &strings.Builder{}
// Server got answer: domain -> [ip1, ip2] 23ms
builder.WriteString(l.Server)
builder.WriteString(" ")
builder.WriteString(string(l.Status))
builder.WriteString(" ")
builder.WriteString(l.Domain)
builder.WriteString(" -> [")
builder.WriteString(joinNetIP(l.Result))
builder.WriteString("]")
if l.Elapsed > 0 {
builder.WriteString(" ")
builder.WriteString(l.Elapsed.String())
}
if l.Error != nil {
builder.WriteString(" <")
builder.WriteString(l.Error.Error())
builder.WriteString(">")
}
return builder.String()
}
type dnsStatus string
var (
DNSQueried = dnsStatus("got answer:")
DNSCacheHit = dnsStatus("cache HIT:")
)
func joinNetIP(ips []net.IP) string {
if len(ips) == 0 {
return ""
}
sips := make([]string, 0, len(ips))
for _, ip := range ips {
sips = append(sips, ip.String())
}
return strings.Join(sips, ", ")
}

8
core/config.pb.go
View file

@ -9,7 +9,7 @@ package core
import (
proto "github.com/golang/protobuf/proto"
serial "github.com/xtls/xray-core/common/serial"
transport "github.com/xtls/xray-core/transport"
"github.com/xtls/xray-core/transport/global"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
@ -48,7 +48,7 @@ type Config struct {
// config. Date to remove: 2020-01-13
//
// Deprecated: Do not use.
Transport *transport.Config `protobuf:"bytes,5,opt,name=transport,proto3" json:"transport,omitempty"`
Transport *global.Config `protobuf:"bytes,5,opt,name=transport,proto3" json:"transport,omitempty"`
// Configuration for extensions. The config may not work if corresponding
// extension is not loaded into Xray. Xray will ignore such config during
// initialization.
@ -109,7 +109,7 @@ func (x *Config) GetApp() []*serial.TypedMessage {
}
// Deprecated: Do not use.
func (x *Config) GetTransport() *transport.Config {
func (x *Config) GetTransport() *global.Config {
if x != nil {
return x.Transport
}
@ -356,7 +356,7 @@ var file_core_config_proto_goTypes = []interface{}{
(*InboundHandlerConfig)(nil), // 1: xray.core.InboundHandlerConfig
(*OutboundHandlerConfig)(nil), // 2: xray.core.OutboundHandlerConfig
(*serial.TypedMessage)(nil), // 3: xray.common.serial.TypedMessage
(*transport.Config)(nil), // 4: xray.transport.Config
(*global.Config)(nil), // 4: xray.transport.Config
}
var file_core_config_proto_depIdxs = []int32{
1, // 0: xray.core.Config.inbound:type_name -> xray.core.InboundHandlerConfig

9
core/xray.go
View file

@ -16,6 +16,7 @@ import (
"github.com/xtls/xray-core/features/policy"
"github.com/xtls/xray-core/features/routing"
"github.com/xtls/xray-core/features/stats"
"github.com/xtls/xray-core/transport/internet"
)
// Server is an instance of Xray. At any time, there must be at most one Server instance running.
@ -223,6 +224,14 @@ func initInstanceWithConfig(config *Config, server *Instance) (bool, error) {
}
}
internet.InitSystemDialer(
server.GetFeature(dns.ClientType()).(dns.Client),
func() outbound.Manager {
obm, _ := server.GetFeature(outbound.ManagerType()).(outbound.Manager)
return obm
}(),
)
if server.featureResolutions != nil {
return true, newError("not all dependency are resolved.")
}

2
infra/conf/log.go
View file

@ -19,6 +19,7 @@ type LogConfig struct {
AccessLog string `json:"access"`
ErrorLog string `json:"error"`
LogLevel string `json:"loglevel"`
DNSLog bool `json:"dnsLog"`
}
func (v *LogConfig) Build() *log.Config {
@ -28,6 +29,7 @@ func (v *LogConfig) Build() *log.Config {
config := &log.Config{
ErrorLogType: log.LogType_Console,
AccessLogType: log.LogType_Console,
EnableDnsLog: v.DNSLog,
}
if v.AccessLog == "none" {

6
infra/conf/transport.go
View file

@ -2,7 +2,7 @@ package conf
import (
"github.com/xtls/xray-core/common/serial"
"github.com/xtls/xray-core/transport"
"github.com/xtls/xray-core/transport/global"
"github.com/xtls/xray-core/transport/internet"
)
@ -16,8 +16,8 @@ type TransportConfig struct {
}
// Build implements Buildable.
func (c *TransportConfig) Build() (*transport.Config, error) {
config := new(transport.Config)
func (c *TransportConfig) Build() (*global.Config, error) {
config := new(global.Config)
if c.TCPConfig != nil {
ts, err := c.TCPConfig.Build()

20
infra/conf/transport_internet.go
View file

@ -455,6 +455,8 @@ type SocketConfig struct {
TFO interface{} `json:"tcpFastOpen"`
TProxy string `json:"tproxy"`
AcceptProxyProtocol bool `json:"acceptProxyProtocol"`
DomainStrategy string `json:"domainStrategy"`
DialerProxy string `json:"dialerProxy"`
}
// Build implements Buildable.
@ -487,11 +489,23 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
tproxy = internet.SocketConfig_Off
}
var dStrategy = internet.DomainStrategy_AS_IS
switch strings.ToLower(c.DomainStrategy) {
case "useip", "use_ip":
dStrategy = internet.DomainStrategy_USE_IP
case "useip4", "useipv4", "use_ipv4", "use_ip_v4", "use_ip4":
dStrategy = internet.DomainStrategy_USE_IP4
case "useip6", "useipv6", "use_ipv6", "use_ip_v6", "use_ip6":
dStrategy = internet.DomainStrategy_USE_IP6
}
return &internet.SocketConfig{
Mark: c.Mark,
Tfo: tfo,
Tproxy: tproxy,
DomainStrategy: dStrategy,
AcceptProxyProtocol: c.AcceptProxyProtocol,
DialerProxy: c.DialerProxy,
}, nil
}
@ -628,6 +642,9 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
type ProxyConfig struct {
Tag string `json:"tag"`
// TransportLayerProxy: For compatibility.
TransportLayerProxy bool `json:"transportLayer"`
}
// Build implements Buildable.
@ -636,6 +653,7 @@ func (v *ProxyConfig) Build() (*internet.ProxyConfig, error) {
return nil, newError("Proxy tag is not set.")
}
return &internet.ProxyConfig{
Tag: v.Tag,
Tag: v.Tag,
TransportLayerProxy: v.TransportLayerProxy,
}, nil
}

14
infra/conf/transport_test.go
View file

@ -8,7 +8,7 @@ import (
"github.com/xtls/xray-core/common/protocol"
"github.com/xtls/xray-core/common/serial"
. "github.com/xtls/xray-core/infra/conf"
"github.com/xtls/xray-core/transport"
"github.com/xtls/xray-core/transport/global"
"github.com/xtls/xray-core/transport/internet"
"github.com/xtls/xray-core/transport/internet/headers/http"
"github.com/xtls/xray-core/transport/internet/headers/noop"
@ -34,12 +34,16 @@ func TestSocketConfig(t *testing.T) {
{
Input: `{
"mark": 1,
"tcpFastOpen": true
"tcpFastOpen": true,
"domainStrategy": "UseIP",
"dialerProxy": "tag"
}`,
Parser: createParser(),
Output: &internet.SocketConfig{
Mark: 1,
Tfo: 256,
Mark: 1,
Tfo: 256,
DomainStrategy: internet.DomainStrategy_USE_IP,
DialerProxy: "tag",
},
},
})
@ -119,7 +123,7 @@ func TestTransportConfig(t *testing.T) {
}
}`,
Parser: createParser(),
Output: &transport.Config{
Output: &global.Config{
TransportSettings: []*internet.TransportConfig{
{
ProtocolName: "tcp",

26
infra/conf/xray.go
View file

@ -2,6 +2,7 @@ package conf
import (
"encoding/json"
"github.com/xtls/xray-core/transport/internet"
"log"
"os"
"strings"
@ -267,9 +268,22 @@ type OutboundDetourConfig struct {
MuxSettings *MuxConfig `json:"mux"`
}
func (c *OutboundDetourConfig) checkChainProxyConfig() error {
if c.StreamSetting == nil || c.ProxySettings == nil || c.StreamSetting.SocketSettings == nil {
return nil
}
if len(c.ProxySettings.Tag) > 0 && len(c.StreamSetting.SocketSettings.DialerProxy) > 0 {
return newError("proxySettings.tag is conflicted with sockopt.dialerProxy").AtWarning()
}
return nil
}
// Build implements Buildable.
func (c *OutboundDetourConfig) Build() (*core.OutboundHandlerConfig, error) {
senderSettings := &proxyman.SenderConfig{}
if err := c.checkChainProxyConfig(); err != nil {
return nil, err
}
if c.SendThrough != nil {
address := c.SendThrough
@ -295,6 +309,18 @@ func (c *OutboundDetourConfig) Build() (*core.OutboundHandlerConfig, error) {
if err != nil {
return nil, newError("invalid outbound detour proxy settings.").Base(err)
}
if ps.TransportLayerProxy {
if senderSettings.StreamSettings != nil {
if senderSettings.StreamSettings.SocketSettings != nil {
senderSettings.StreamSettings.SocketSettings.DialerProxy = ps.Tag
} else {
senderSettings.StreamSettings.SocketSettings = &internet.SocketConfig{DialerProxy: ps.Tag}
}
} else {
senderSettings.StreamSettings = &internet.StreamConfig{SocketSettings: &internet.SocketConfig{DialerProxy: ps.Tag}}
}
ps = nil
}
senderSettings.ProxySettings = ps
}

165
transport/config.pb.go
View file

@ -1,165 +0,0 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.25.0
// protoc v3.14.0
// source: transport/config.proto
package transport
import (
proto "github.com/golang/protobuf/proto"
internet "github.com/xtls/xray-core/transport/internet"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// This is a compile-time assertion that a sufficiently up-to-date version
// of the legacy proto package is being used.
const _ = proto.ProtoPackageIsVersion4
// Global transport settings. This affects all type of connections that go
// through Xray. Deprecated. Use each settings in StreamConfig.
//
// Deprecated: Do not use.
type Config struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
TransportSettings []*internet.TransportConfig `protobuf:"bytes,1,rep,name=transport_settings,json=transportSettings,proto3" json:"transport_settings,omitempty"`
}
func (x *Config) Reset() {
*x = Config{}
if protoimpl.UnsafeEnabled {
mi := &file_transport_config_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Config) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Config) ProtoMessage() {}
func (x *Config) ProtoReflect() protoreflect.Message {
mi := &file_transport_config_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Config.ProtoReflect.Descriptor instead.
func (*Config) Descriptor() ([]byte, []int) {
return file_transport_config_proto_rawDescGZIP(), []int{0}
}
func (x *Config) GetTransportSettings() []*internet.TransportConfig {
if x != nil {
return x.TransportSettings
}
return nil
}
var File_transport_config_proto protoreflect.FileDescriptor
var file_transport_config_proto_rawDesc = []byte{
0x0a, 0x16, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2f, 0x63, 0x6f, 0x6e, 0x66,
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0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
}
var (
file_transport_config_proto_rawDescOnce sync.Once
file_transport_config_proto_rawDescData = file_transport_config_proto_rawDesc
)
func file_transport_config_proto_rawDescGZIP() []byte {
file_transport_config_proto_rawDescOnce.Do(func() {
file_transport_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_transport_config_proto_rawDescData)
})
return file_transport_config_proto_rawDescData
}
var file_transport_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_transport_config_proto_goTypes = []interface{}{
(*Config)(nil), // 0: xray.transport.Config
(*internet.TransportConfig)(nil), // 1: xray.transport.internet.TransportConfig
}
var file_transport_config_proto_depIdxs = []int32{
1, // 0: xray.transport.Config.transport_settings:type_name -> xray.transport.internet.TransportConfig
1, // [1:1] is the sub-list for method output_type
1, // [1:1] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_transport_config_proto_init() }
func file_transport_config_proto_init() {
if File_transport_config_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_transport_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Config); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_transport_config_proto_rawDesc,
NumEnums: 0,
NumMessages: 1,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_transport_config_proto_goTypes,
DependencyIndexes: file_transport_config_proto_depIdxs,
MessageInfos: file_transport_config_proto_msgTypes,
}.Build()
File_transport_config_proto = out.File
file_transport_config_proto_rawDesc = nil
file_transport_config_proto_goTypes = nil
file_transport_config_proto_depIdxs = nil
}

2
transport/config.go → transport/global/config.go
View file

@ -1,4 +1,4 @@
package transport
package global
import (
"github.com/xtls/xray-core/transport/internet"

167
transport/global/config.pb.go Normal file
View file

@ -0,0 +1,167 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.25.0
// protoc v3.14.0
// source: transport/global/config.proto
package global
import (
proto "github.com/golang/protobuf/proto"
internet "github.com/xtls/xray-core/transport/internet"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// This is a compile-time assertion that a sufficiently up-to-date version
// of the legacy proto package is being used.
const _ = proto.ProtoPackageIsVersion4
// Global transport settings. This affects all type of connections that go
// through Xray. Deprecated. Use each settings in StreamConfig.
//
// Deprecated: Do not use.
type Config struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
TransportSettings []*internet.TransportConfig `protobuf:"bytes,1,rep,name=transport_settings,json=transportSettings,proto3" json:"transport_settings,omitempty"`
}
func (x *Config) Reset() {
*x = Config{}
if protoimpl.UnsafeEnabled {
mi := &file_transport_global_config_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Config) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Config) ProtoMessage() {}
func (x *Config) ProtoReflect() protoreflect.Message {
mi := &file_transport_global_config_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Config.ProtoReflect.Descriptor instead.
func (*Config) Descriptor() ([]byte, []int) {
return file_transport_global_config_proto_rawDescGZIP(), []int{0}
}
func (x *Config) GetTransportSettings() []*internet.TransportConfig {
if x != nil {
return x.TransportSettings
}
return nil
}
var File_transport_global_config_proto protoreflect.FileDescriptor
var file_transport_global_config_proto_rawDesc = []byte{
0x0a, 0x1d, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2f, 0x67, 0x6c, 0x6f, 0x62,
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0x6f, 0x33,
}
var (
file_transport_global_config_proto_rawDescOnce sync.Once
file_transport_global_config_proto_rawDescData = file_transport_global_config_proto_rawDesc
)
func file_transport_global_config_proto_rawDescGZIP() []byte {
file_transport_global_config_proto_rawDescOnce.Do(func() {
file_transport_global_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_transport_global_config_proto_rawDescData)
})
return file_transport_global_config_proto_rawDescData
}
var file_transport_global_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_transport_global_config_proto_goTypes = []interface{}{
(*Config)(nil), // 0: xray.transport.Config
(*internet.TransportConfig)(nil), // 1: xray.transport.internet.TransportConfig
}
var file_transport_global_config_proto_depIdxs = []int32{
1, // 0: xray.transport.Config.transport_settings:type_name -> xray.transport.internet.TransportConfig
1, // [1:1] is the sub-list for method output_type
1, // [1:1] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_transport_global_config_proto_init() }
func file_transport_global_config_proto_init() {
if File_transport_global_config_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_transport_global_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Config); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_transport_global_config_proto_rawDesc,
NumEnums: 0,
NumMessages: 1,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_transport_global_config_proto_goTypes,
DependencyIndexes: file_transport_global_config_proto_depIdxs,
MessageInfos: file_transport_global_config_proto_msgTypes,
}.Build()
File_transport_global_config_proto = out.File
file_transport_global_config_proto_rawDesc = nil
file_transport_global_config_proto_goTypes = nil
file_transport_global_config_proto_depIdxs = nil
}

6
transport/config.proto → transport/global/config.proto
View file

@ -1,9 +1,9 @@
syntax = "proto3";
package xray.transport;
option csharp_namespace = "Xray.Transport";
option go_package = "github.com/xtls/xray-core/transport";
option java_package = "com.xray.transport";
option csharp_namespace = "Xray.Transport.Global";
option go_package = "github.com/xtls/xray-core/transport/global";
option java_package = "com.xray.transport.global";
option java_multiple_files = true;
import "transport/internet/config.proto";

216
transport/internet/config.pb.go
View file

@ -84,6 +84,58 @@ func (TransportProtocol) EnumDescriptor() ([]byte, []int) {
return file_transport_internet_config_proto_rawDescGZIP(), []int{0}
}
type DomainStrategy int32
const (
DomainStrategy_AS_IS DomainStrategy = 0
DomainStrategy_USE_IP DomainStrategy = 1
DomainStrategy_USE_IP4 DomainStrategy = 2
DomainStrategy_USE_IP6 DomainStrategy = 3
)
// Enum value maps for DomainStrategy.
var (
DomainStrategy_name = map[int32]string{
0: "AS_IS",
1: "USE_IP",
2: "USE_IP4",
3: "USE_IP6",
}
DomainStrategy_value = map[string]int32{
"AS_IS": 0,
"USE_IP": 1,
"USE_IP4": 2,
"USE_IP6": 3,
}
)
func (x DomainStrategy) Enum() *DomainStrategy {
p := new(DomainStrategy)
*p = x
return p
}
func (x DomainStrategy) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (DomainStrategy) Descriptor() protoreflect.EnumDescriptor {
return file_transport_internet_config_proto_enumTypes[1].Descriptor()
}
func (DomainStrategy) Type() protoreflect.EnumType {
return &file_transport_internet_config_proto_enumTypes[1]
}
func (x DomainStrategy) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use DomainStrategy.Descriptor instead.
func (DomainStrategy) EnumDescriptor() ([]byte, []int) {
return file_transport_internet_config_proto_rawDescGZIP(), []int{1}
}
type SocketConfig_TProxyMode int32
const (
@ -120,11 +172,11 @@ func (x SocketConfig_TProxyMode) String() string {
}
func (SocketConfig_TProxyMode) Descriptor() protoreflect.EnumDescriptor {
return file_transport_internet_config_proto_enumTypes[1].Descriptor()
return file_transport_internet_config_proto_enumTypes[2].Descriptor()
}
func (SocketConfig_TProxyMode) Type() protoreflect.EnumType {
return &file_transport_internet_config_proto_enumTypes[1]
return &file_transport_internet_config_proto_enumTypes[2]
}
func (x SocketConfig_TProxyMode) Number() protoreflect.EnumNumber {
@ -305,7 +357,8 @@ type ProxyConfig struct {
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
TransportLayerProxy bool `protobuf:"varint,2,opt,name=transportLayerProxy,proto3" json:"transportLayerProxy,omitempty"`
}
func (x *ProxyConfig) Reset() {
@ -347,6 +400,13 @@ func (x *ProxyConfig) GetTag() string {
return ""
}
func (x *ProxyConfig) GetTransportLayerProxy() bool {
if x != nil {
return x.TransportLayerProxy
}
return false
}
// SocketConfig is options to be applied on network sockets.
type SocketConfig struct {
state protoimpl.MessageState
@ -361,10 +421,12 @@ type SocketConfig struct {
Tproxy SocketConfig_TProxyMode `protobuf:"varint,3,opt,name=tproxy,proto3,enum=xray.transport.internet.SocketConfig_TProxyMode" json:"tproxy,omitempty"`
// ReceiveOriginalDestAddress is for enabling IP_RECVORIGDSTADDR socket
// option. This option is for UDP only.
ReceiveOriginalDestAddress bool `protobuf:"varint,4,opt,name=receive_original_dest_address,json=receiveOriginalDestAddress,proto3" json:"receive_original_dest_address,omitempty"`
BindAddress []byte `protobuf:"bytes,5,opt,name=bind_address,json=bindAddress,proto3" json:"bind_address,omitempty"`
BindPort uint32 `protobuf:"varint,6,opt,name=bind_port,json=bindPort,proto3" json:"bind_port,omitempty"`
AcceptProxyProtocol bool `protobuf:"varint,7,opt,name=accept_proxy_protocol,json=acceptProxyProtocol,proto3" json:"accept_proxy_protocol,omitempty"`
ReceiveOriginalDestAddress bool `protobuf:"varint,4,opt,name=receive_original_dest_address,json=receiveOriginalDestAddress,proto3" json:"receive_original_dest_address,omitempty"`
BindAddress []byte `protobuf:"bytes,5,opt,name=bind_address,json=bindAddress,proto3" json:"bind_address,omitempty"`
BindPort uint32 `protobuf:"varint,6,opt,name=bind_port,json=bindPort,proto3" json:"bind_port,omitempty"`
AcceptProxyProtocol bool `protobuf:"varint,7,opt,name=accept_proxy_protocol,json=acceptProxyProtocol,proto3" json:"accept_proxy_protocol,omitempty"`
DomainStrategy DomainStrategy `protobuf:"varint,8,opt,name=domain_strategy,json=domainStrategy,proto3,enum=xray.transport.internet.DomainStrategy" json:"domain_strategy,omitempty"`
DialerProxy string `protobuf:"bytes,9,opt,name=dialer_proxy,json=dialerProxy,proto3" json:"dialer_proxy,omitempty"`
}
func (x *SocketConfig) Reset() {
@ -448,6 +510,20 @@ func (x *SocketConfig) GetAcceptProxyProtocol() bool {
return false
}
func (x *SocketConfig) GetDomainStrategy() DomainStrategy {
if x != nil {
return x.DomainStrategy
}
return DomainStrategy_AS_IS
}
func (x *SocketConfig) GetDialerProxy() string {
if x != nil {
return x.DialerProxy
}
return ""
}
var File_transport_internet_config_proto protoreflect.FileDescriptor
var file_transport_internet_config_proto_rawDesc = []byte{
@ -495,44 +571,58 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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}
var (
@ -547,30 +637,32 @@ func file_transport_internet_config_proto_rawDescGZIP() []byte {
return file_transport_internet_config_proto_rawDescData
}
var file_transport_internet_config_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
var file_transport_internet_config_proto_enumTypes = make([]protoimpl.EnumInfo, 3)
var file_transport_internet_config_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
var file_transport_internet_config_proto_goTypes = []interface{}{
(TransportProtocol)(0), // 0: xray.transport.internet.TransportProtocol
(SocketConfig_TProxyMode)(0), // 1: xray.transport.internet.SocketConfig.TProxyMode
(*TransportConfig)(nil), // 2: xray.transport.internet.TransportConfig
(*StreamConfig)(nil), // 3: xray.transport.internet.StreamConfig
(*ProxyConfig)(nil), // 4: xray.transport.internet.ProxyConfig
(*SocketConfig)(nil), // 5: xray.transport.internet.SocketConfig
(*serial.TypedMessage)(nil), // 6: xray.common.serial.TypedMessage
(DomainStrategy)(0), // 1: xray.transport.internet.DomainStrategy
(SocketConfig_TProxyMode)(0), // 2: xray.transport.internet.SocketConfig.TProxyMode
(*TransportConfig)(nil), // 3: xray.transport.internet.TransportConfig
(*StreamConfig)(nil), // 4: xray.transport.internet.StreamConfig
(*ProxyConfig)(nil), // 5: xray.transport.internet.ProxyConfig
(*SocketConfig)(nil), // 6: xray.transport.internet.SocketConfig
(*serial.TypedMessage)(nil), // 7: xray.common.serial.TypedMessage
}
var file_transport_internet_config_proto_depIdxs = []int32{
0, // 0: xray.transport.internet.TransportConfig.protocol:type_name -> xray.transport.internet.TransportProtocol
6, // 1: xray.transport.internet.TransportConfig.settings:type_name -> xray.common.serial.TypedMessage
7, // 1: xray.transport.internet.TransportConfig.settings:type_name -> xray.common.serial.TypedMessage
0, // 2: xray.transport.internet.StreamConfig.protocol:type_name -> xray.transport.internet.TransportProtocol
2, // 3: xray.transport.internet.StreamConfig.transport_settings:type_name -> xray.transport.internet.TransportConfig
6, // 4: xray.transport.internet.StreamConfig.security_settings:type_name -> xray.common.serial.TypedMessage
5, // 5: xray.transport.internet.StreamConfig.socket_settings:type_name -> xray.transport.internet.SocketConfig
1, // 6: xray.transport.internet.SocketConfig.tproxy:type_name -> xray.transport.internet.SocketConfig.TProxyMode
7, // [7:7] is the sub-list for method output_type
7, // [7:7] is the sub-list for method input_type
7, // [7:7] is the sub-list for extension type_name
7, // [7:7] is the sub-list for extension extendee
0, // [0:7] is the sub-list for field type_name
3, // 3: xray.transport.internet.StreamConfig.transport_settings:type_name -> xray.transport.internet.TransportConfig
7, // 4: xray.transport.internet.StreamConfig.security_settings:type_name -> xray.common.serial.TypedMessage
6, // 5: xray.transport.internet.StreamConfig.socket_settings:type_name -> xray.transport.internet.SocketConfig
2, // 6: xray.transport.internet.SocketConfig.tproxy:type_name -> xray.transport.internet.SocketConfig.TProxyMode
1, // 7: xray.transport.internet.SocketConfig.domain_strategy:type_name -> xray.transport.internet.DomainStrategy
8, // [8:8] is the sub-list for method output_type
8, // [8:8] is the sub-list for method input_type
8, // [8:8] is the sub-list for extension type_name
8, // [8:8] is the sub-list for extension extendee
0, // [0:8] is the sub-list for field type_name
}
func init() { file_transport_internet_config_proto_init() }
@ -633,7 +725,7 @@ func file_transport_internet_config_proto_init() {
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_transport_internet_config_proto_rawDesc,
NumEnums: 2,
NumEnums: 3,
NumMessages: 4,
NumExtensions: 0,
NumServices: 0,

15
transport/internet/config.proto
View file

@ -17,6 +17,13 @@ enum TransportProtocol {
DomainSocket = 5;
}
enum DomainStrategy {
AS_IS = 0;
USE_IP = 1;
USE_IP4 = 2;
USE_IP6 = 3;
}
message TransportConfig {
// Type of network that this settings supports.
// Deprecated. Use the string form below.
@ -47,7 +54,10 @@ message StreamConfig {
SocketConfig socket_settings = 6;
}
message ProxyConfig { string tag = 1; }
message ProxyConfig {
string tag = 1;
bool transportLayerProxy = 2;
}
// SocketConfig is options to be applied on network sockets.
message SocketConfig {
@ -78,4 +88,7 @@ message SocketConfig {
uint32 bind_port = 6;
bool accept_proxy_protocol = 7;
DomainStrategy domain_strategy = 8;
string dialer_proxy = 9;
}

93
transport/internet/system_dialer.go
View file

@ -5,20 +5,35 @@ import (
"syscall"
"time"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/dice"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/net/cnc"
"github.com/xtls/xray-core/common/session"
"github.com/xtls/xray-core/features/dns"
"github.com/xtls/xray-core/features/outbound"
"github.com/xtls/xray-core/transport"
"github.com/xtls/xray-core/transport/pipe"
)
var (
effectiveSystemDialer SystemDialer = &DefaultSystemDialer{}
)
// InitSystemDialer: It's private method and you are NOT supposed to use this function.
func InitSystemDialer(dc dns.Client, om outbound.Manager) {
effectiveSystemDialer.init(dc, om)
}
type SystemDialer interface {
Dial(ctx context.Context, source net.Address, destination net.Destination, sockopt *SocketConfig) (net.Conn, error)
init(dc dns.Client, om outbound.Manager)
}
type DefaultSystemDialer struct {
controllers []controller
dns dns.Client
obm outbound.Manager
}
func resolveSrcAddr(network net.Network, src net.Address) net.Addr {
@ -43,7 +58,78 @@ func hasBindAddr(sockopt *SocketConfig) bool {
return sockopt != nil && len(sockopt.BindAddress) > 0 && sockopt.BindPort > 0
}
func (d *DefaultSystemDialer) lookupIP(domain string, strategy DomainStrategy, localAddr net.Address) ([]net.IP, error) {
if d.dns == nil {
return nil, nil
}
var lookup = d.dns.LookupIP
switch {
case strategy == DomainStrategy_USE_IP4 || (localAddr != nil && localAddr.Family().IsIPv4()):
if lookupIPv4, ok := d.dns.(dns.IPv4Lookup); ok {
lookup = lookupIPv4.LookupIPv4
}
case strategy == DomainStrategy_USE_IP6 || (localAddr != nil && localAddr.Family().IsIPv6()):
if lookupIPv4, ok := d.dns.(dns.IPv4Lookup); ok {
lookup = lookupIPv4.LookupIPv4
}
case strategy == DomainStrategy_AS_IS:
return nil, nil
}
return lookup(domain)
}
func (d *DefaultSystemDialer) canLookupIP(ctx context.Context, dst net.Destination, sockopt *SocketConfig) bool {
if sockopt == nil || dst.Address.Family().IsIP() || d.dns == nil {
return false
}
if dst.Address.Domain() == LookupDomainFromContext(ctx) {
newError("infinite loop detected").AtError().WriteToLog(session.ExportIDToError(ctx))
return false
}
return sockopt.DomainStrategy != DomainStrategy_AS_IS
}
func (d *DefaultSystemDialer) redirect(ctx context.Context, dst net.Destination, obt string) net.Conn {
newError("redirecting request " + dst.String() + " to " + obt).WriteToLog(session.ExportIDToError(ctx))
h := d.obm.GetHandler(obt)
ctx = session.ContextWithOutbound(ctx, &session.Outbound{dst, nil})
if h != nil {
ur, uw := pipe.New(pipe.OptionsFromContext(ctx)...)
dr, dw := pipe.New(pipe.OptionsFromContext(ctx)...)
go h.Dispatch(ctx, &transport.Link{ur, dw})
nc := cnc.NewConnection(
cnc.ConnectionInputMulti(uw),
cnc.ConnectionOutputMulti(dr),
cnc.ConnectionOnClose(common.ChainedClosable{uw, dw}),
)
return nc
}
return nil
}
func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest net.Destination, sockopt *SocketConfig) (net.Conn, error) {
newError("dialing to " + dest.String()).AtDebug().WriteToLog()
if d.obm != nil && sockopt != nil && len(sockopt.DialerProxy) > 0 {
nc := d.redirect(ctx, dest, sockopt.DialerProxy)
if nc != nil {
return nc, nil
}
}
if d.canLookupIP(ctx, dest, sockopt) {
ips, err := d.lookupIP(dest.Address.String(), sockopt.DomainStrategy, src)
if err == nil && len(ips) > 0 {
dest.Address = net.IPAddress(ips[dice.Roll(len(ips))])
newError("replace destination with " + dest.String()).AtInfo().WriteToLog()
} else if err != nil {
newError("failed to resolve ip").Base(err).AtWarning().WriteToLog()
}
}
if dest.Network == net.Network_UDP && !hasBindAddr(sockopt) {
srcAddr := resolveSrcAddr(net.Network_UDP, src)
if srcAddr == nil {
@ -98,6 +184,11 @@ func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest ne
return dialer.DialContext(ctx, dest.Network.SystemString(), dest.NetAddr())
}
func (d *DefaultSystemDialer) init(dc dns.Client, om outbound.Manager) {
d.dns = dc
d.obm = om
}
type PacketConnWrapper struct {
conn net.PacketConn
dest net.Addr
@ -158,6 +249,8 @@ func WithAdapter(dialer SystemDialerAdapter) SystemDialer {
}
}
func (v *SimpleSystemDialer) init(_ dns.Client, _ outbound.Manager) {}
func (v *SimpleSystemDialer) Dial(ctx context.Context, src net.Address, dest net.Destination, sockopt *SocketConfig) (net.Conn, error) {
return v.adapter.Dial(dest.Network.SystemString(), dest.NetAddr())
}

18
transport/internet/system_dialer_context.go Normal file
View file

@ -0,0 +1,18 @@
package internet
import "context"
type systemDialer int
const systemDialerKey systemDialer = 0
func ContextWithLookupDomain(ctx context.Context, domain string) context.Context {
return context.WithValue(ctx, systemDialerKey, domain)
}
func LookupDomainFromContext(ctx context.Context) string {
if domain, ok := ctx.Value(systemDialerKey).(string); ok {
return domain
}
return ""
}