Legends never die (#1725)

go.mod

@@ -19,7 +19,6 @@ require (
 	github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb
 	github.com/stretchr/testify v1.8.2
 	github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e
-	github.com/xtls/go v0.0.0-20230107031059-4610f88d00f3
 	github.com/xtls/reality v0.0.0-20230227192902-524506d97551
 	go.starlark.net v0.0.0-20230128213706-3f75dec8e403
 	golang.org/x/crypto v0.6.0

go.sum

@@ -189,8 +189,6 @@ github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e h1:5QefA066A1tF
 github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e/go.mod h1:5t19P9LBIrNamL6AcMQOncg/r10y3Pc01AbHeMhwlpU=
 github.com/viant/assertly v0.4.8/go.mod h1:aGifi++jvCrUaklKEKT0BU95igDNaqkvz+49uaYMPRU=
 github.com/viant/toolbox v0.24.0/go.mod h1:OxMCG57V0PXuIP2HNQrtJf2CjqdmbrOx5EkMILuUhzM=
-github.com/xtls/go v0.0.0-20230107031059-4610f88d00f3 h1:a3Y4WVjCxwoyO4E2xdNvq577tW8lkSBgyrA8E9+2NtM=
-github.com/xtls/go v0.0.0-20230107031059-4610f88d00f3/go.mod h1:YJTRELIWrGxR1s8xcEBgxcxBfwQfMGjdvNLTjN9XFgY=
 github.com/xtls/reality v0.0.0-20230227192902-524506d97551 h1:zOP9NvpCMa1Y58UmA9EhbWs5/FNKvqwD5EyDLVit2LI=
 github.com/xtls/reality v0.0.0-20230227192902-524506d97551/go.mod h1:rkuAY1S9F8eI8gDiPDYvACE8e2uwkyg8qoOTuwWov7Y=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=

infra/conf/transport_internet.go

@@ -26,7 +26,6 @@ import (
 	"github.com/xtls/xray-core/transport/internet/tcp"
 	"github.com/xtls/xray-core/transport/internet/tls"
 	"github.com/xtls/xray-core/transport/internet/websocket"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 var (
@@ -416,117 +415,6 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 	return config, nil
 }
 
-type XTLSCertConfig struct {
-	CertFile       string   `json:"certificateFile"`
-	CertStr        []string `json:"certificate"`
-	KeyFile        string   `json:"keyFile"`
-	KeyStr         []string `json:"key"`
-	Usage          string   `json:"usage"`
-	OcspStapling   uint64   `json:"ocspStapling"`
-	OneTimeLoading bool     `json:"oneTimeLoading"`
-}
-
-// Build implements Buildable.
-func (c *XTLSCertConfig) Build() (*xtls.Certificate, error) {
-	certificate := new(xtls.Certificate)
-	cert, err := readFileOrString(c.CertFile, c.CertStr)
-	if err != nil {
-		return nil, newError("failed to parse certificate").Base(err)
-	}
-	certificate.Certificate = cert
-	certificate.CertificatePath = c.CertFile
-
-	if len(c.KeyFile) > 0 || len(c.KeyStr) > 0 {
-		key, err := readFileOrString(c.KeyFile, c.KeyStr)
-		if err != nil {
-			return nil, newError("failed to parse key").Base(err)
-		}
-		certificate.Key = key
-		certificate.KeyPath = c.KeyFile
-	}
-
-	switch strings.ToLower(c.Usage) {
-	case "encipherment":
-		certificate.Usage = xtls.Certificate_ENCIPHERMENT
-	case "verify":
-		certificate.Usage = xtls.Certificate_AUTHORITY_VERIFY
-	case "issue":
-		certificate.Usage = xtls.Certificate_AUTHORITY_ISSUE
-	default:
-		certificate.Usage = xtls.Certificate_ENCIPHERMENT
-	}
-	if certificate.KeyPath == "" && certificate.CertificatePath == "" {
-		certificate.OneTimeLoading = true
-	} else {
-		certificate.OneTimeLoading = c.OneTimeLoading
-	}
-	certificate.OcspStapling = c.OcspStapling
-
-	return certificate, nil
-}
-
-type XTLSConfig struct {
-	Insecure                         bool              `json:"allowInsecure"`
-	Certs                            []*XTLSCertConfig `json:"certificates"`
-	ServerName                       string            `json:"serverName"`
-	ALPN                             *StringList       `json:"alpn"`
-	EnableSessionResumption          bool              `json:"enableSessionResumption"`
-	DisableSystemRoot                bool              `json:"disableSystemRoot"`
-	MinVersion                       string            `json:"minVersion"`
-	MaxVersion                       string            `json:"maxVersion"`
-	CipherSuites                     string            `json:"cipherSuites"`
-	PreferServerCipherSuites         bool              `json:"preferServerCipherSuites"`
-	Fingerprint                      string            `json:"fingerprint"`
-	RejectUnknownSNI                 bool              `json:"rejectUnknownSni"`
-	PinnedPeerCertificateChainSha256 *[]string         `json:"pinnedPeerCertificateChainSha256"`
-}
-
-// Build implements Buildable.
-func (c *XTLSConfig) Build() (proto.Message, error) {
-	config := new(xtls.Config)
-	config.Certificate = make([]*xtls.Certificate, len(c.Certs))
-	for idx, certConf := range c.Certs {
-		cert, err := certConf.Build()
-		if err != nil {
-			return nil, err
-		}
-		config.Certificate[idx] = cert
-	}
-	serverName := c.ServerName
-	config.AllowInsecure = c.Insecure
-	if len(c.ServerName) > 0 {
-		config.ServerName = serverName
-	}
-	if c.ALPN != nil && len(*c.ALPN) > 0 {
-		config.NextProtocol = []string(*c.ALPN)
-	}
-	config.EnableSessionResumption = c.EnableSessionResumption
-	config.DisableSystemRoot = c.DisableSystemRoot
-	config.MinVersion = c.MinVersion
-	config.MaxVersion = c.MaxVersion
-	config.CipherSuites = c.CipherSuites
-	config.PreferServerCipherSuites = c.PreferServerCipherSuites
-	if c.Fingerprint != "" {
-		return nil, newError(`Old version of XTLS does not support fingerprint. Please use flow "xtls-rprx-vision" with "tls & tlsSettings" instead.`)
-	}
-	config.RejectUnknownSni = c.RejectUnknownSNI
-
-	if c.PinnedPeerCertificateChainSha256 != nil {
-		config.PinnedPeerCertificateChainSha256 = [][]byte{}
-		for _, v := range *c.PinnedPeerCertificateChainSha256 {
-			hashValue, err := base64.StdEncoding.DecodeString(v)
-			if err != nil {
-				return nil, err
-			}
-			config.PinnedPeerCertificateChainSha256 = append(config.PinnedPeerCertificateChainSha256, hashValue)
-		}
-	}
-
-	newError(`You are using an old version of XTLS, which is deprecated now and will be removed soon. Please use flow "xtls-rprx-vision" with "tls & tlsSettings" instead.`).AtWarning().WriteToLog()
-
-	return config, nil
-}
-
 type REALITYConfig struct {
 	Show         bool            `json:"show"`
 	Dest         json.RawMessage `json:"dest"`
@@ -788,7 +676,6 @@ type StreamConfig struct {
 	Network         *TransportProtocol  `json:"network"`
 	Security        string              `json:"security"`
 	TLSSettings     *TLSConfig          `json:"tlsSettings"`
-	XTLSSettings    *XTLSConfig         `json:"xtlsSettings"`
 	REALITYSettings *REALITYConfig      `json:"realitySettings"`
 	TCPSettings     *TCPConfig          `json:"tcpSettings"`
 	KCPSettings     *KCPConfig          `json:"kcpSettings"`
@@ -816,9 +703,6 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 	if strings.EqualFold(c.Security, "tls") {
 		tlsSettings := c.TLSSettings
 		if tlsSettings == nil {
-			if c.XTLSSettings != nil {
-				return nil, newError(`TLS: Please use "tlsSettings" instead of "xtlsSettings".`)
-			}
 			tlsSettings = &TLSConfig{}
 		}
 		ts, err := tlsSettings.Build()
@@ -829,25 +713,6 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 		config.SecuritySettings = append(config.SecuritySettings, tm)
 		config.SecurityType = tm.Type
 	}
-	if strings.EqualFold(c.Security, "xtls") {
-		if config.ProtocolName != "tcp" && config.ProtocolName != "mkcp" && config.ProtocolName != "domainsocket" {
-			return nil, newError("XTLS only supports TCP, mKCP and DomainSocket for now.")
-		}
-		xtlsSettings := c.XTLSSettings
-		if xtlsSettings == nil {
-			if c.TLSSettings != nil {
-				return nil, newError(`XTLS: Please use "xtlsSettings" instead of "tlsSettings".`)
-			}
-			xtlsSettings = &XTLSConfig{}
-		}
-		ts, err := xtlsSettings.Build()
-		if err != nil {
-			return nil, newError("Failed to build XTLS config.").Base(err)
-		}
-		tm := serial.ToTypedMessage(ts)
-		config.SecuritySettings = append(config.SecuritySettings, tm)
-		config.SecurityType = tm.Type
-	}
 	if strings.EqualFold(c.Security, "reality") {
 		if config.ProtocolName != "tcp" && config.ProtocolName != "http" && config.ProtocolName != "grpc" && config.ProtocolName != "domainsocket" {
 			return nil, newError("REALITY only supports TCP, H2, gRPC and DomainSocket for now.")

infra/conf/trojan.go

@@ -53,11 +53,7 @@ func (c *TrojanClientConfig) Build() (proto.Message, error) {
 		}
 
 		switch account.Flow {
-		case "", "xtls-rprx-origin", "xtls-rprx-origin-udp443", "xtls-rprx-direct", "xtls-rprx-direct-udp443":
-		case "xtls-rprx-splice", "xtls-rprx-splice-udp443":
-			if runtime.GOOS != "linux" && runtime.GOOS != "android" {
-				return nil, newError(`Trojan servers: "` + account.Flow + `" only support linux in this version`)
-			}
+		case "":
 		default:
 			return nil, newError(`Trojan servers: "flow" doesn't support "` + account.Flow + `" in this version`)
 		}
@@ -119,9 +115,7 @@ func (c *TrojanServerConfig) Build() (proto.Message, error) {
 		}
 
 		switch account.Flow {
-		case "", "xtls-rprx-origin", "xtls-rprx-direct":
-		case "xtls-rprx-splice":
-			return nil, newError(`Trojan clients: inbound doesn't support "xtls-rprx-splice" in this version, please use "xtls-rprx-direct" instead`)
+		case "":
 		default:
 			return nil, newError(`Trojan clients: "flow" doesn't support "` + account.Flow + `" in this version`)
 		}

infra/conf/vless.go

@@ -62,9 +62,7 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 			}
 		}
 		switch accountFlow {
-		case "", vless.XRO, vless.XRD, vless.XRV:
-		case vless.XRS:
-			return nil, newError(`VLESS clients: inbound doesn't support "xtls-rprx-splice" in this version, please use "xtls-rprx-direct" instead`)
+		case "", vless.XRV:
 		default:
 			return nil, newError(`VLESS clients: "flow" doesn't support "` + account.Flow + `" in this version`)
 		}
@@ -191,11 +189,7 @@ func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 			account.Id = u.String()
 
 			switch account.Flow {
-			case "", vless.XRO, vless.XRO + "-udp443", vless.XRD, vless.XRD + "-udp443", vless.XRV, vless.XRV + "-udp443":
-			case vless.XRS, vless.XRS + "-udp443":
-				if runtime.GOOS != "linux" && runtime.GOOS != "android" {
-					return nil, newError(`VLESS users: "` + account.Flow + `" only support linux in this version`)
-				}
+			case "", vless.XRV, vless.XRV + "-udp443":
 			default:
 				return nil, newError(`VLESS users: "flow" doesn't support "` + account.Flow + `" in this version`)
 			}

infra/conf/vless_test.go

@@ -26,7 +26,7 @@ func TestVLessOutbound(t *testing.T) {
 					"users": [
 						{
 							"id": "27848739-7e62-4138-9fd3-098a63964b6b",
-							"flow": "xtls-rprx-direct-udp443",
+							"flow": "xtls-rprx-vision-udp443",
 							"encryption": "none",
 							"level": 0
 						}
@@ -47,7 +47,7 @@ func TestVLessOutbound(t *testing.T) {
 							{
 								Account: serial.ToTypedMessage(&vless.Account{
 									Id:         "27848739-7e62-4138-9fd3-098a63964b6b",
-									Flow:       "xtls-rprx-direct-udp443",
+									Flow:       "xtls-rprx-vision-udp443",
 									Encryption: "none",
 								}),
 								Level: 0,
@@ -71,7 +71,7 @@ func TestVLessInbound(t *testing.T) {
 				"clients": [
 					{
 						"id": "27848739-7e62-4138-9fd3-098a63964b6b",
-						"flow": "xtls-rprx-direct",
+						"flow": "xtls-rprx-vision",
 						"level": 0,
 						"email": "[email protected]"
 					}
@@ -98,7 +98,7 @@ func TestVLessInbound(t *testing.T) {
 					{
 						Account: serial.ToTypedMessage(&vless.Account{
 							Id:   "27848739-7e62-4138-9fd3-098a63964b6b",
-							Flow: "xtls-rprx-direct",
+							Flow: "xtls-rprx-vision",
 						}),
 						Level: 0,
 						Email: "[email protected]",

infra/conf/xray.go

@@ -13,7 +13,6 @@ import (
 	"github.com/xtls/xray-core/common/serial"
 	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/transport/internet"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 var (
@@ -236,9 +235,6 @@ func (c *InboundDetourConfig) Build() (*core.InboundHandlerConfig, error) {
 		if err != nil {
 			return nil, err
 		}
-		if ss.SecurityType == serial.GetMessageType(&xtls.Config{}) && !strings.EqualFold(c.Protocol, "vless") && !strings.EqualFold(c.Protocol, "trojan") {
-			return nil, newError("XTLS doesn't supports " + c.Protocol + " for now.")
-		}
 		receiverSettings.StreamSettings = ss
 	}
 	if c.SniffingConfig != nil {
@@ -319,9 +315,6 @@ func (c *OutboundDetourConfig) Build() (*core.OutboundHandlerConfig, error) {
 		if err != nil {
 			return nil, err
 		}
-		if ss.SecurityType == serial.GetMessageType(&xtls.Config{}) && !strings.EqualFold(c.Protocol, "vless") && !strings.EqualFold(c.Protocol, "trojan") {
-			return nil, newError("XTLS doesn't supports " + c.Protocol + " for now.")
-		}
 		senderSettings.StreamSettings = ss
 	}
 
@@ -346,15 +339,7 @@ func (c *OutboundDetourConfig) Build() (*core.OutboundHandlerConfig, error) {
 	}
 
 	if c.MuxSettings != nil {
-		ms := c.MuxSettings.Build()
-		if ms != nil && ms.Enabled {
-			if ss := senderSettings.StreamSettings; ss != nil {
-				if ss.SecurityType == serial.GetMessageType(&xtls.Config{}) {
-					return nil, newError("XTLS doesn't support Mux for now.")
-				}
-			}
-		}
-		senderSettings.MultiplexSettings = ms
+		senderSettings.MultiplexSettings = c.MuxSettings.Build()
 	}
 
 	settings := []byte("{}")

main/distro/all/all.go

@@ -61,7 +61,6 @@ import (
 	_ "github.com/xtls/xray-core/transport/internet/tls"
 	_ "github.com/xtls/xray-core/transport/internet/udp"
 	_ "github.com/xtls/xray-core/transport/internet/websocket"
-	_ "github.com/xtls/xray-core/transport/internet/xtls"
 
 	// Transport headers
 	_ "github.com/xtls/xray-core/transport/internet/headers/http"

proxy/trojan/client.go

@@ -2,14 +2,12 @@ package trojan
 
 import (
 	"context"
-	"syscall"
 	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/retry"
 	"github.com/xtls/xray-core/common/session"
@@ -17,11 +15,9 @@ import (
 	"github.com/xtls/xray-core/common/task"
 	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/policy"
-	"github.com/xtls/xray-core/features/stats"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/stat"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 // Client is a inbound handler for trojan protocol
@@ -97,49 +93,6 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 		Flow: account.Flow,
 	}
 
-	var rawConn syscall.RawConn
-	var sctx context.Context
-
-	allowUDP443 := false
-	switch connWriter.Flow {
-	case XRO + "-udp443", XRD + "-udp443", XRS + "-udp443":
-		allowUDP443 = true
-		connWriter.Flow = connWriter.Flow[:16]
-		fallthrough
-	case XRO, XRD, XRS:
-		if destination.Address.Family().IsDomain() && destination.Address.Domain() == muxCoolAddress {
-			return newError(connWriter.Flow + " doesn't support Mux").AtWarning()
-		}
-		if destination.Network == net.Network_UDP {
-			if !allowUDP443 && destination.Port == 443 {
-				return newError(connWriter.Flow + " stopped UDP/443").AtInfo()
-			}
-			connWriter.Flow = ""
-		} else { // enable XTLS only if making TCP request
-			if xtlsConn, ok := iConn.(*xtls.Conn); ok {
-				xtlsConn.RPRX = true
-				xtlsConn.SHOW = xtls_show
-				xtlsConn.MARK = "XTLS"
-				if connWriter.Flow == XRS {
-					sctx = ctx
-					connWriter.Flow = XRD
-				}
-				if connWriter.Flow == XRD {
-					xtlsConn.DirectMode = true
-					if sc, ok := xtlsConn.NetConn().(syscall.Conn); ok {
-						rawConn, _ = sc.SyscallConn()
-					}
-				}
-			} else {
-				return newError(`failed to use ` + connWriter.Flow + `, maybe "security" is not "xtls"`).AtWarning()
-			}
-		}
-	default:
-		if _, ok := iConn.(*xtls.Conn); ok {
-			panic(`To avoid misunderstanding, you must fill in Trojan "flow" when using XTLS.`)
-		}
-	}
-
 	sessionPolicy := c.policyManager.ForLevel(user.Level)
 	ctx, cancel := context.WithCancel(ctx)
 	timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
@@ -193,13 +146,6 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 		} else {
 			reader = buf.NewReader(conn)
 		}
-		if rawConn != nil {
-			var counter stats.Counter
-			if statConn != nil {
-				counter = statConn.ReadCounter
-			}
-			return ReadV(reader, link.Writer, timer, iConn.(*xtls.Conn), rawConn, counter, sctx)
-		}
 		return buf.Copy(reader, link.Writer, buf.UpdateActivity(timer))
 	}
 
@@ -215,11 +161,4 @@ func init() {
 	common.Must(common.RegisterConfig((*ClientConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		return NewClient(ctx, config.(*ClientConfig))
 	}))
-
-	const defaultFlagValue = "NOT_DEFINED_AT_ALL"
-
-	xtlsShow := platform.NewEnvFlag("xray.trojan.xtls.show").GetValue(func() string { return defaultFlagValue })
-	if xtlsShow == "true" {
-		xtls_show = true
-	}
 }

proxy/trojan/protocol.go

@@ -1,22 +1,12 @@
 package trojan
 
 import (
-	"context"
 	"encoding/binary"
-	fmt "fmt"
 	"io"
-	"runtime"
-	"syscall"
 
 	"github.com/xtls/xray-core/common/buf"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
-	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/common/signal"
-	"github.com/xtls/xray-core/features/stats"
-	"github.com/xtls/xray-core/transport/internet/stat"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 var (
@@ -27,25 +17,13 @@ var (
 		protocol.AddressFamilyByte(0x04, net.AddressFamilyIPv6),
 		protocol.AddressFamilyByte(0x03, net.AddressFamilyDomain),
 	)
-
-	xtls_show = false
 )
 
 const (
 	maxLength = 8192
-	// XRS is constant for XTLS splice mode
-	XRS = "xtls-rprx-splice"
-	// XRD is constant for XTLS direct mode
-	XRD = "xtls-rprx-direct"
-	// XRO is constant for XTLS origin mode
-	XRO = "xtls-rprx-origin"
 
 	commandTCP byte = 1
 	commandUDP byte = 3
-
-	// for XTLS
-	commandXRD byte = 0xf0 // XTLS direct mode
-	commandXRO byte = 0xf1 // XTLS origin mode
 )
 
 // ConnWriter is TCP Connection Writer Wrapper for trojan protocol
@@ -90,10 +68,6 @@ func (c *ConnWriter) writeHeader() error {
 	command := commandTCP
 	if c.Target.Network == net.Network_UDP {
 		command = commandUDP
-	} else if c.Flow == XRD {
-		command = commandXRD
-	} else if c.Flow == XRO {
-		command = commandXRO
 	}
 
 	if _, err := buffer.Write(c.Account.Key); err != nil {
@@ -201,10 +175,6 @@ func (c *ConnReader) ParseHeader() error {
 	network := net.Network_TCP
 	if command[0] == commandUDP {
 		network = net.Network_UDP
-	} else if command[0] == commandXRD {
-		c.Flow = XRD
-	} else if command[0] == commandXRO {
-		c.Flow = XRO
 	}
 
 	addr, port, err := addrParser.ReadAddressPort(nil, c.Reader)
@@ -288,66 +258,3 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 
 	return mb, nil
 }
-
-func ReadV(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, conn *xtls.Conn, rawConn syscall.RawConn, counter stats.Counter, sctx context.Context) error {
-	err := func() error {
-		var ct stats.Counter
-		for {
-			if conn.DirectIn {
-				conn.DirectIn = false
-				if sctx != nil {
-					if inbound := session.InboundFromContext(sctx); inbound != nil && inbound.Conn != nil {
-						iConn := inbound.Conn
-						statConn, ok := iConn.(*stat.CounterConnection)
-						if ok {
-							iConn = statConn.Connection
-						}
-						if xc, ok := iConn.(*xtls.Conn); ok {
-							iConn = xc.NetConn()
-						}
-						if tc, ok := iConn.(*net.TCPConn); ok {
-							if conn.SHOW {
-								fmt.Println(conn.MARK, "Splice")
-							}
-							runtime.Gosched() // necessary
-							w, err := tc.ReadFrom(conn.NetConn())
-							if counter != nil {
-								counter.Add(w)
-							}
-							if statConn != nil && statConn.WriteCounter != nil {
-								statConn.WriteCounter.Add(w)
-							}
-							return err
-						} else {
-							panic("XTLS Splice: not TCP inbound")
-						}
-					} else {
-						// panic("XTLS Splice: nil inbound or nil inbound.Conn")
-					}
-				}
-				reader = buf.NewReadVReader(conn.NetConn(), rawConn, nil)
-				ct = counter
-				if conn.SHOW {
-					fmt.Println(conn.MARK, "ReadV")
-				}
-			}
-			buffer, err := reader.ReadMultiBuffer()
-			if !buffer.IsEmpty() {
-				if ct != nil {
-					ct.Add(int64(buffer.Len()))
-				}
-				timer.Update()
-				if werr := writer.WriteMultiBuffer(buffer); werr != nil {
-					return werr
-				}
-			}
-			if err != nil {
-				return err
-			}
-		}
-	}()
-	if err != nil && errors.Cause(err) != io.EOF {
-		return err
-	}
-	return nil
-}

proxy/trojan/server.go

@@ -5,7 +5,6 @@ import (
 	"io"
 	"strconv"
 	"strings"
-	"syscall"
 	"time"
 
 	"github.com/xtls/xray-core/common"
@@ -13,7 +12,6 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/common/protocol"
 	udp_proto "github.com/xtls/xray-core/common/protocol/udp"
 	"github.com/xtls/xray-core/common/retry"
@@ -23,25 +21,16 @@ import (
 	"github.com/xtls/xray-core/core"
 	"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/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
 	"github.com/xtls/xray-core/transport/internet/udp"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 func init() {
 	common.Must(common.RegisterConfig((*ServerConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		return NewServer(ctx, config.(*ServerConfig))
 	}))
-
-	const defaultFlagValue = "NOT_DEFINED_AT_ALL"
-
-	xtlsShow := platform.NewEnvFlag("xray.trojan.xtls.show").GetValue(func() string { return defaultFlagValue })
-	if xtlsShow == "true" {
-		xtls_show = true
-	}
 }
 
 // Server is an inbound connection handler that handles messages in trojan protocol.
@@ -235,39 +224,6 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Con
 		return s.handleUDPPayload(ctx, &PacketReader{Reader: clientReader}, &PacketWriter{Writer: conn}, dispatcher)
 	}
 
-	// handle tcp request
-	account, ok := user.Account.(*MemoryAccount)
-	if !ok {
-		return newError("user account is not valid")
-	}
-
-	var rawConn syscall.RawConn
-
-	switch clientReader.Flow {
-	case XRO, XRD:
-		if account.Flow == clientReader.Flow {
-			if destination.Address.Family().IsDomain() && destination.Address.Domain() == muxCoolAddress {
-				return newError(clientReader.Flow + " doesn't support Mux").AtWarning()
-			}
-			if xtlsConn, ok := iConn.(*xtls.Conn); ok {
-				xtlsConn.RPRX = true
-				xtlsConn.SHOW = xtls_show
-				xtlsConn.MARK = "XTLS"
-				if clientReader.Flow == XRD {
-					xtlsConn.DirectMode = true
-					if sc, ok := xtlsConn.NetConn().(syscall.Conn); ok {
-						rawConn, _ = sc.SyscallConn()
-					}
-				}
-			} else {
-				return newError(`failed to use ` + clientReader.Flow + `, maybe "security" is not "xtls"`).AtWarning()
-			}
-		} else {
-			return newError(account.Password + " is not able to use " + clientReader.Flow).AtWarning()
-		}
-	case "":
-	}
-
 	ctx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
 		From:   conn.RemoteAddr(),
 		To:     destination,
@@ -277,7 +233,7 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Con
 	})
 
 	newError("received request for ", destination).WriteToLog(sid)
-	return s.handleConnection(ctx, sessionPolicy, destination, clientReader, buf.NewWriter(conn), dispatcher, iConn, rawConn, statConn)
+	return s.handleConnection(ctx, sessionPolicy, destination, clientReader, buf.NewWriter(conn), dispatcher, iConn, statConn)
 }
 
 func (s *Server) handleUDPPayload(ctx context.Context, clientReader *PacketReader, clientWriter *PacketWriter, dispatcher routing.Dispatcher) error {
@@ -343,7 +299,7 @@ func (s *Server) handleUDPPayload(ctx context.Context, clientReader *PacketReade
 func (s *Server) handleConnection(ctx context.Context, sessionPolicy policy.Session,
 	destination net.Destination,
 	clientReader buf.Reader,
-	clientWriter buf.Writer, dispatcher routing.Dispatcher, iConn stat.Connection, rawConn syscall.RawConn, statConn *stat.CounterConnection,
+	clientWriter buf.Writer, dispatcher routing.Dispatcher, iConn stat.Connection, statConn *stat.CounterConnection,
 ) error {
 	ctx, cancel := context.WithCancel(ctx)
 	timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
@@ -356,18 +312,7 @@ func (s *Server) handleConnection(ctx context.Context, sessionPolicy policy.Sess
 
 	requestDone := func() error {
 		defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
-
-		var err error
-		if rawConn != nil {
-			var counter stats.Counter
-			if statConn != nil {
-				counter = statConn.ReadCounter
-			}
-			err = ReadV(clientReader, link.Writer, timer, iConn.(*xtls.Conn), rawConn, counter, nil)
-		} else {
-			err = buf.Copy(clientReader, link.Writer, buf.UpdateActivity(timer))
-		}
-		if err != nil {
+		if buf.Copy(clientReader, link.Writer, buf.UpdateActivity(timer)) != nil {
 			return newError("failed to transfer request").Base(err)
 		}
 		return nil
@@ -406,12 +351,6 @@ func (s *Server) fallback(ctx context.Context, sid errors.ExportOption, err erro
 		alpn = cs.NegotiatedProtocol
 		newError("realName = " + name).AtInfo().WriteToLog(sid)
 		newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
-	} else if xtlsConn, ok := iConn.(*xtls.Conn); ok {
-		cs := xtlsConn.ConnectionState()
-		name = cs.ServerName
-		alpn = cs.NegotiatedProtocol
-		newError("realName = " + name).AtInfo().WriteToLog(sid)
-		newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
 	} else if realityConn, ok := iConn.(*reality.Conn); ok {
 		cs := realityConn.ConnectionState()
 		name = cs.ServerName

proxy/vless/account.go

@@ -22,7 +22,7 @@ func (a *Account) AsAccount() (protocol.Account, error) {
 type MemoryAccount struct {
 	// ID of the account.
 	ID *protocol.ID
-	// Flow of the account. May be "xtls-rprx-direct".
+	// Flow of the account. May be "xtls-rprx-vision".
 	Flow string
 	// Encryption of the account. Used for client connections, and only accepts "none" for now.
 	Encryption string

proxy/vless/account.pb.go

@@ -27,7 +27,7 @@ type Account struct {
 
 	// ID of the account, in the form of a UUID, e.g., "66ad4540-b58c-4ad2-9926-ea63445a9b57".
 	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-	// Flow settings. May be "xtls-rprx-direct".
+	// Flow settings. May be "xtls-rprx-vision".
 	Flow string `protobuf:"bytes,2,opt,name=flow,proto3" json:"flow,omitempty"`
 	// Encryption settings. Only applies to client side, and only accepts "none" for now.
 	Encryption string `protobuf:"bytes,3,opt,name=encryption,proto3" json:"encryption,omitempty"`

proxy/vless/account.proto

@@ -9,7 +9,7 @@ option java_multiple_files = true;
 message Account {
   // ID of the account, in the form of a UUID, e.g., "66ad4540-b58c-4ad2-9926-ea63445a9b57".
   string id = 1;
-  // Flow settings. May be "xtls-rprx-direct".
+  // Flow settings. May be "xtls-rprx-vision".
   string flow = 2;
   // Encryption settings. Only applies to client side, and only accepts "none" for now.
   string encryption = 3;

proxy/vless/encoding/addons.go

@@ -11,7 +11,7 @@ import (
 
 func EncodeHeaderAddons(buffer *buf.Buffer, addons *Addons) error {
 	switch addons.Flow {
-	case vless.XRO, vless.XRD, vless.XRV:
+	case vless.XRV:
 		bytes, err := proto.Marshal(addons)
 		if err != nil {
 			return newError("failed to marshal addons protobuf value").Base(err)

proxy/vless/encoding/encoding.go

@@ -6,7 +6,6 @@ import (
 	"bytes"
 	"context"
 	"crypto/rand"
-	"fmt"
 	"io"
 	"math/big"
 	"runtime"
@@ -24,7 +23,6 @@ import (
 	"github.com/xtls/xray-core/proxy/vless"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 const (
@@ -206,65 +204,6 @@ func DecodeResponseHeader(reader io.Reader, request *protocol.RequestHeader) (*A
 	return responseAddons, nil
 }
 
-func ReadV(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, conn *xtls.Conn, rawConn syscall.RawConn, counter stats.Counter, ctx context.Context) error {
-	err := func() error {
-		var ct stats.Counter
-		for {
-			if conn.DirectIn {
-				conn.DirectIn = false
-				if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Conn != nil {
-					iConn := inbound.Conn
-					statConn, ok := iConn.(*stat.CounterConnection)
-					if ok {
-						iConn = statConn.Connection
-					}
-					if xc, ok := iConn.(*xtls.Conn); ok {
-						iConn = xc.NetConn()
-					}
-					if tc, ok := iConn.(*net.TCPConn); ok {
-						if conn.SHOW {
-							fmt.Println(conn.MARK, "Splice")
-						}
-						runtime.Gosched() // necessary
-						w, err := tc.ReadFrom(conn.NetConn())
-						if counter != nil {
-							counter.Add(w)
-						}
-						if statConn != nil && statConn.WriteCounter != nil {
-							statConn.WriteCounter.Add(w)
-						}
-						return err
-					} else {
-						panic("XTLS Splice: not TCP inbound")
-					}
-				}
-				reader = buf.NewReadVReader(conn.NetConn(), rawConn, nil)
-				ct = counter
-				if conn.SHOW {
-					fmt.Println(conn.MARK, "ReadV")
-				}
-			}
-			buffer, err := reader.ReadMultiBuffer()
-			if !buffer.IsEmpty() {
-				if ct != nil {
-					ct.Add(int64(buffer.Len()))
-				}
-				timer.Update()
-				if werr := writer.WriteMultiBuffer(buffer); werr != nil {
-					return werr
-				}
-			}
-			if err != nil {
-				return err
-			}
-		}
-	}()
-	if err != nil && errors.Cause(err) != io.EOF {
-		return err
-	}
-	return nil
-}
-
 // XtlsRead filter and read xtls protocol
 func XtlsRead(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, conn net.Conn, rawConn syscall.RawConn,
 	input *bytes.Reader, rawInput *bytes.Buffer,

proxy/vless/inbound/inbound.go

@@ -20,7 +20,6 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/retry"
 	"github.com/xtls/xray-core/common/session"
@@ -37,11 +36,8 @@ import (
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
-var xtls_show = false
-
 func init() {
 	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		var dc dns.Client
@@ -53,13 +49,6 @@ func init() {
 		}
 		return New(ctx, config.(*Config), dc)
 	}))
-
-	const defaultFlagValue = "NOT_DEFINED_AT_ALL"
-
-	xtlsShow := platform.NewEnvFlag("xray.vless.xtls.show").GetValue(func() string { return defaultFlagValue })
-	if xtlsShow == "true" {
-		xtls_show = true
-	}
 }
 
 // Handler is an inbound connection handler that handles messages in VLess protocol.
@@ -241,12 +230,6 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 				alpn = cs.NegotiatedProtocol
 				newError("realName = " + name).AtInfo().WriteToLog(sid)
 				newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
-			} else if xtlsConn, ok := iConn.(*xtls.Conn); ok {
-				cs := xtlsConn.ConnectionState()
-				name = cs.ServerName
-				alpn = cs.NegotiatedProtocol
-				newError("realName = " + name).AtInfo().WriteToLog(sid)
-				newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
 			} else if realityConn, ok := iConn.(*reality.Conn); ok {
 				cs := realityConn.ConnectionState()
 				name = cs.ServerName
@@ -479,7 +462,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		}
 	}
 	switch requestAddons.Flow {
-	case vless.XRO, vless.XRD, vless.XRV:
+	case vless.XRV:
 		if accountFlow == requestAddons.Flow {
 			switch request.Command {
 			case protocol.RequestCommandMux:
@@ -487,51 +470,35 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 			case protocol.RequestCommandUDP:
 				return newError(requestAddons.Flow + " doesn't support UDP").AtWarning()
 			case protocol.RequestCommandTCP:
-				if requestAddons.Flow == vless.XRV {
-					var t reflect.Type
-					var p uintptr
-					if tlsConn, ok := iConn.(*tls.Conn); ok {
-						if tlsConn.ConnectionState().Version != gotls.VersionTLS13 {
-							return newError(`failed to use `+requestAddons.Flow+`, found outer tls version `, tlsConn.ConnectionState().Version).AtWarning()
-						}
-						netConn = tlsConn.NetConn()
-						t = reflect.TypeOf(tlsConn.Conn).Elem()
-						p = uintptr(unsafe.Pointer(tlsConn.Conn))
-					} else if realityConn, ok := iConn.(*reality.Conn); ok {
-						netConn = realityConn.NetConn()
-						t = reflect.TypeOf(realityConn.Conn).Elem()
-						p = uintptr(unsafe.Pointer(realityConn.Conn))
-					} else if _, ok := iConn.(*tls.UConn); ok {
-						return newError("XTLS only supports UTLS fingerprint for the outbound.").AtWarning()
-					} else if _, ok := iConn.(*xtls.Conn); ok {
-						return newError(`failed to use ` + requestAddons.Flow + `, vision "security" must be "tls" or "reality"`).AtWarning()
-					} else {
-						return newError("XTLS only supports TCP, mKCP and DomainSocket for now.").AtWarning()
-					}
-					if pc, ok := netConn.(*proxyproto.Conn); ok {
-						netConn = pc.Raw()
-						// 8192 > 4096, there is no need to process pc's bufReader
-					}
-					if sc, ok := netConn.(syscall.Conn); ok {
-						rawConn, _ = sc.SyscallConn()
-					}
-					i, _ := t.FieldByName("input")
-					r, _ := t.FieldByName("rawInput")
-					input = (*bytes.Reader)(unsafe.Pointer(p + i.Offset))
-					rawInput = (*bytes.Buffer)(unsafe.Pointer(p + r.Offset))
-				} else if xtlsConn, ok := iConn.(*xtls.Conn); ok {
-					xtlsConn.RPRX = true
-					xtlsConn.SHOW = xtls_show
-					xtlsConn.MARK = "XTLS"
-					if requestAddons.Flow == vless.XRD {
-						xtlsConn.DirectMode = true
-						if sc, ok := xtlsConn.NetConn().(syscall.Conn); ok {
-							rawConn, _ = sc.SyscallConn()
-						}
+				var t reflect.Type
+				var p uintptr
+				if tlsConn, ok := iConn.(*tls.Conn); ok {
+					if tlsConn.ConnectionState().Version != gotls.VersionTLS13 {
+						return newError(`failed to use `+requestAddons.Flow+`, found outer tls version `, tlsConn.ConnectionState().Version).AtWarning()
 					}
+					netConn = tlsConn.NetConn()
+					t = reflect.TypeOf(tlsConn.Conn).Elem()
+					p = uintptr(unsafe.Pointer(tlsConn.Conn))
+				} else if realityConn, ok := iConn.(*reality.Conn); ok {
+					netConn = realityConn.NetConn()
+					t = reflect.TypeOf(realityConn.Conn).Elem()
+					p = uintptr(unsafe.Pointer(realityConn.Conn))
+				} else if _, ok := iConn.(*tls.UConn); ok {
+					return newError("XTLS only supports UTLS fingerprint for the outbound.").AtWarning()
 				} else {
-					return newError(`failed to use ` + requestAddons.Flow + `, maybe "security" is not "xtls"`).AtWarning()
+					return newError("XTLS only supports TCP, mKCP and DomainSocket for now.").AtWarning()
+				}
+				if pc, ok := netConn.(*proxyproto.Conn); ok {
+					netConn = pc.Raw()
+					// 8192 > 4096, there is no need to process pc's bufReader
 				}
+				if sc, ok := netConn.(syscall.Conn); ok {
+					rawConn, _ = sc.SyscallConn()
+				}
+				i, _ := t.FieldByName("input")
+				r, _ := t.FieldByName("rawInput")
+				input = (*bytes.Reader)(unsafe.Pointer(p + i.Offset))
+				rawInput = (*bytes.Buffer)(unsafe.Pointer(p + r.Offset))
 			}
 		} else {
 			return newError(account.ID.String() + " is not able to use " + requestAddons.Flow).AtWarning()
@@ -589,12 +556,8 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 			}
 			// TODO enable splice
 			ctx = session.ContextWithInbound(ctx, nil)
-			if requestAddons.Flow == vless.XRV {
-				err = encoding.XtlsRead(clientReader, serverWriter, timer, netConn, rawConn, input, rawInput, counter, ctx, account.ID.Bytes(),
-					&numberOfPacketToFilter, &enableXtls, &isTLS12orAbove, &isTLS, &cipher, &remainingServerHello)
-			} else {
-				err = encoding.ReadV(clientReader, serverWriter, timer, iConn.(*xtls.Conn), rawConn, counter, ctx)
-			}
+			err = encoding.XtlsRead(clientReader, serverWriter, timer, netConn, rawConn, input, rawInput, counter, ctx, account.ID.Bytes(),
+			&numberOfPacketToFilter, &enableXtls, &isTLS12orAbove, &isTLS, &cipher, &remainingServerHello)
 		} else {
 			// from clientReader.ReadMultiBuffer to serverWriter.WriteMultiBufer
 			err = buf.Copy(clientReader, serverWriter, buf.UpdateActivity(timer))

proxy/vless/outbound/outbound.go

@@ -15,7 +15,6 @@ import (
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/retry"
 	"github.com/xtls/xray-core/common/session"
@@ -32,22 +31,12 @@ import (
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
-var xtls_show = false
-
 func init() {
 	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		return New(ctx, config.(*Config))
 	}))
-
-	const defaultFlagValue = "NOT_DEFINED_AT_ALL"
-
-	xtlsShow := platform.NewEnvFlag("xray.vless.xtls.show").GetValue(func() string { return defaultFlagValue })
-	if xtlsShow == "true" {
-		xtls_show = true
-	}
 }
 
 // Handler is an outbound connection handler for VLess protocol.
@@ -140,11 +129,11 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 	var rawInput *bytes.Buffer
 	allowUDP443 := false
 	switch requestAddons.Flow {
-	case vless.XRO + "-udp443", vless.XRD + "-udp443", vless.XRS + "-udp443", vless.XRV + "-udp443":
+	case vless.XRV + "-udp443":
 		allowUDP443 = true
 		requestAddons.Flow = requestAddons.Flow[:16]
 		fallthrough
-	case vless.XRO, vless.XRD, vless.XRS, vless.XRV:
+	case vless.XRV:
 		switch request.Command {
 		case protocol.RequestCommandMux:
 			return newError(requestAddons.Flow + " doesn't support Mux").AtWarning()
@@ -154,53 +143,30 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 			}
 			requestAddons.Flow = ""
 		case protocol.RequestCommandTCP:
-			if requestAddons.Flow == vless.XRV {
-				var t reflect.Type
-				var p uintptr
-				if tlsConn, ok := iConn.(*tls.Conn); ok {
-					netConn = tlsConn.NetConn()
-					t = reflect.TypeOf(tlsConn.Conn).Elem()
-					p = uintptr(unsafe.Pointer(tlsConn.Conn))
-				} else if utlsConn, ok := iConn.(*tls.UConn); ok {
-					netConn = utlsConn.NetConn()
-					t = reflect.TypeOf(utlsConn.Conn).Elem()
-					p = uintptr(unsafe.Pointer(utlsConn.Conn))
-				} else if realityConn, ok := iConn.(*reality.UConn); ok {
-					netConn = realityConn.NetConn()
-					t = reflect.TypeOf(realityConn.Conn).Elem()
-					p = uintptr(unsafe.Pointer(realityConn.Conn))
-				} else if _, ok := iConn.(*xtls.Conn); ok {
-					return newError(`failed to use ` + requestAddons.Flow + `, vision "security" must be "tls" or "reality"`).AtWarning()
-				} else {
-					return newError("XTLS only supports TCP, mKCP and DomainSocket for now.").AtWarning()
-				}
-				if sc, ok := netConn.(syscall.Conn); ok {
-					rawConn, _ = sc.SyscallConn()
-				}
-				i, _ := t.FieldByName("input")
-				r, _ := t.FieldByName("rawInput")
-				input = (*bytes.Reader)(unsafe.Pointer(p + i.Offset))
-				rawInput = (*bytes.Buffer)(unsafe.Pointer(p + r.Offset))
-			} else if xtlsConn, ok := iConn.(*xtls.Conn); ok {
-				xtlsConn.RPRX = true
-				xtlsConn.SHOW = xtls_show
-				xtlsConn.MARK = "XTLS"
-				if requestAddons.Flow == vless.XRS {
-					requestAddons.Flow = vless.XRD
-				}
-				if requestAddons.Flow == vless.XRD {
-					xtlsConn.DirectMode = true
-					if sc, ok := xtlsConn.NetConn().(syscall.Conn); ok {
-						rawConn, _ = sc.SyscallConn()
-					}
-				}
+			var t reflect.Type
+			var p uintptr
+			if tlsConn, ok := iConn.(*tls.Conn); ok {
+				netConn = tlsConn.NetConn()
+				t = reflect.TypeOf(tlsConn.Conn).Elem()
+				p = uintptr(unsafe.Pointer(tlsConn.Conn))
+			} else if utlsConn, ok := iConn.(*tls.UConn); ok {
+				netConn = utlsConn.NetConn()
+				t = reflect.TypeOf(utlsConn.Conn).Elem()
+				p = uintptr(unsafe.Pointer(utlsConn.Conn))
+			} else if realityConn, ok := iConn.(*reality.UConn); ok {
+				netConn = realityConn.NetConn()
+				t = reflect.TypeOf(realityConn.Conn).Elem()
+				p = uintptr(unsafe.Pointer(realityConn.Conn))
 			} else {
-				return newError(`failed to use ` + requestAddons.Flow + `, maybe "security" is not "xtls"`).AtWarning()
+				return newError("XTLS only supports TCP, mKCP and DomainSocket for now.").AtWarning()
 			}
-		}
-	default:
-		if _, ok := iConn.(*xtls.Conn); ok {
-			panic(`To avoid misunderstanding, you must fill in VLESS "flow" when using XTLS.`)
+			if sc, ok := netConn.(syscall.Conn); ok {
+				rawConn, _ = sc.SyscallConn()
+			}
+			i, _ := t.FieldByName("input")
+			r, _ := t.FieldByName("rawInput")
+			input = (*bytes.Reader)(unsafe.Pointer(p + i.Offset))
+			rawInput = (*bytes.Buffer)(unsafe.Pointer(p + r.Offset))
 		}
 	}
 
@@ -320,15 +286,8 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 			if statConn != nil {
 				counter = statConn.ReadCounter
 			}
-			if requestAddons.Flow == vless.XRV {
-				err = encoding.XtlsRead(serverReader, clientWriter, timer, netConn, rawConn, input, rawInput, counter, ctx, account.ID.Bytes(),
-					&numberOfPacketToFilter, &enableXtls, &isTLS12orAbove, &isTLS, &cipher, &remainingServerHello)
-			} else {
-				if requestAddons.Flow != vless.XRS {
-					ctx = session.ContextWithInbound(ctx, nil)
-				}
-				err = encoding.ReadV(serverReader, clientWriter, timer, iConn.(*xtls.Conn), rawConn, counter, ctx)
-			}
+			err = encoding.XtlsRead(serverReader, clientWriter, timer, netConn, rawConn, input, rawInput, counter, ctx, account.ID.Bytes(),
+			&numberOfPacketToFilter, &enableXtls, &isTLS12orAbove, &isTLS, &cipher, &remainingServerHello)
 		} else {
 			// from serverReader.ReadMultiBuffer to clientWriter.WriteMultiBufer
 			err = buf.Copy(serverReader, clientWriter, buf.UpdateActivity(timer))

proxy/vless/vless.go

@@ -8,8 +8,5 @@ package vless
 //go:generate go run github.com/xtls/xray-core/common/errors/errorgen
 
 const (
-	XRO = "xtls-rprx-origin"
-	XRD = "xtls-rprx-direct"
-	XRS = "xtls-rprx-splice"
 	XRV = "xtls-rprx-vision"
 )

transport/internet/domainsocket/dial.go

@@ -12,7 +12,6 @@ import (
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.MemoryStreamConfig) (stat.Connection, error) {
@@ -29,8 +28,6 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 
 	if config := tls.ConfigFromStreamSettings(streamSettings); config != nil {
 		return tls.Client(conn, config.GetTLSConfig(tls.WithDestination(dest))), nil
-	} else if config := xtls.ConfigFromStreamSettings(streamSettings); config != nil {
-		return xtls.Client(conn, config.GetXTLSConfig(xtls.WithDestination(dest))), nil
 	} else if config := reality.ConfigFromStreamSettings(streamSettings); config != nil {
 		return reality.UClient(conn, config, ctx, dest)
 	}

transport/internet/domainsocket/listener.go

@@ -9,7 +9,6 @@ import (
 	"os"
 	"strings"
 
-	goxtls "github.com/xtls/go"
 	goreality "github.com/xtls/reality"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
@@ -17,7 +16,6 @@ import (
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 	"golang.org/x/sys/unix"
 )
 
@@ -25,7 +23,6 @@ type Listener struct {
 	addr          *net.UnixAddr
 	ln            net.Listener
 	tlsConfig     *gotls.Config
-	xtlsConfig    *goxtls.Config
 	realityConfig *goreality.Config
 	config        *Config
 	addConn       internet.ConnHandler
@@ -64,9 +61,6 @@ func Listen(ctx context.Context, address net.Address, port net.Port, streamSetti
 	if config := tls.ConfigFromStreamSettings(streamSettings); config != nil {
 		ln.tlsConfig = config.GetTLSConfig()
 	}
-	if config := xtls.ConfigFromStreamSettings(streamSettings); config != nil {
-		ln.xtlsConfig = config.GetXTLSConfig()
-	}
 	if config := reality.ConfigFromStreamSettings(streamSettings); config != nil {
 		ln.realityConfig = config.GetREALITYConfig()
 	}
@@ -100,8 +94,6 @@ func (ln *Listener) run() {
 		go func() {
 			if ln.tlsConfig != nil {
 				conn = tls.Server(conn, ln.tlsConfig)
-			} else if ln.xtlsConfig != nil {
-				conn = xtls.Server(conn, ln.xtlsConfig)
 			} else if ln.realityConfig != nil {
 				if conn, err = reality.Server(conn, ln.realityConfig); err != nil {
 					newError(err).AtInfo().WriteToLog()

transport/internet/kcp/dialer.go

@@ -12,7 +12,6 @@ import (
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 var globalConv = uint32(dice.RollUint16())
@@ -87,8 +86,6 @@ func DialKCP(ctx context.Context, dest net.Destination, streamSettings *internet
 
 	if config := tls.ConfigFromStreamSettings(streamSettings); config != nil {
 		iConn = tls.Client(iConn, config.GetTLSConfig(tls.WithDestination(dest)))
-	} else if config := xtls.ConfigFromStreamSettings(streamSettings); config != nil {
-		iConn = xtls.Client(iConn, config.GetXTLSConfig(xtls.WithDestination(dest)))
 	}
 
 	return iConn, nil

transport/internet/kcp/listener.go

@@ -6,7 +6,6 @@ import (
 	gotls "crypto/tls"
 	"sync"
 
-	goxtls "github.com/xtls/go"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/net"
@@ -14,7 +13,6 @@ import (
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
 	"github.com/xtls/xray-core/transport/internet/udp"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 type ConnectionID struct {
@@ -29,7 +27,6 @@ type Listener struct {
 	sessions   map[ConnectionID]*Connection
 	hub        *udp.Hub
 	tlsConfig  *gotls.Config
-	xtlsConfig *goxtls.Config
 	config     *Config
 	reader     PacketReader
 	header     internet.PacketHeader
@@ -62,9 +59,6 @@ func NewListener(ctx context.Context, address net.Address, port net.Port, stream
 	if config := tls.ConfigFromStreamSettings(streamSettings); config != nil {
 		l.tlsConfig = config.GetTLSConfig()
 	}
-	if config := xtls.ConfigFromStreamSettings(streamSettings); config != nil {
-		l.xtlsConfig = config.GetXTLSConfig()
-	}
 
 	hub, err := udp.ListenUDP(ctx, address, port, streamSettings, udp.HubCapacity(1024))
 	if err != nil {
@@ -137,8 +131,6 @@ func (l *Listener) OnReceive(payload *buf.Buffer, src net.Destination) {
 		var netConn stat.Connection = conn
 		if l.tlsConfig != nil {
 			netConn = tls.Server(conn, l.tlsConfig)
-		} else if l.xtlsConfig != nil {
-			netConn = xtls.Server(conn, l.xtlsConfig)
 		}
 
 		l.addConn(netConn)

transport/internet/tcp/dialer.go

@@ -10,7 +10,6 @@ import (
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 // Dial dials a new TCP connection to the given destination.
@@ -31,9 +30,6 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 		} else {
 			conn = tls.Client(conn, tlsConfig)
 		}
-	} else if config := xtls.ConfigFromStreamSettings(streamSettings); config != nil {
-		xtlsConfig := config.GetXTLSConfig(xtls.WithDestination(dest))
-		conn = xtls.Client(conn, xtlsConfig)
 	} else if config := reality.ConfigFromStreamSettings(streamSettings); config != nil {
 		if conn, err = reality.UClient(conn, config, ctx, dest); err != nil {
 			return nil, err

transport/internet/tcp/hub.go

@@ -6,7 +6,6 @@ import (
 	"strings"
 	"time"
 
-	goxtls "github.com/xtls/go"
 	goreality "github.com/xtls/reality"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
@@ -15,14 +14,12 @@ import (
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 // Listener is an internet.Listener that listens for TCP connections.
 type Listener struct {
 	listener      net.Listener
 	tlsConfig     *gotls.Config
-	xtlsConfig    *goxtls.Config
 	realityConfig *goreality.Config
 	authConfig    internet.ConnectionAuthenticator
 	config        *Config
@@ -78,9 +75,6 @@ func ListenTCP(ctx context.Context, address net.Address, port net.Port, streamSe
 	if config := tls.ConfigFromStreamSettings(streamSettings); config != nil {
 		l.tlsConfig = config.GetTLSConfig()
 	}
-	if config := xtls.ConfigFromStreamSettings(streamSettings); config != nil {
-		l.xtlsConfig = config.GetXTLSConfig()
-	}
 	if config := reality.ConfigFromStreamSettings(streamSettings); config != nil {
 		l.realityConfig = config.GetREALITYConfig()
 	}
@@ -118,8 +112,6 @@ func (v *Listener) keepAccepting() {
 		go func() {
 			if v.tlsConfig != nil {
 				conn = tls.Server(conn, v.tlsConfig)
-			} else if v.xtlsConfig != nil {
-				conn = xtls.Server(conn, v.xtlsConfig)
 			} else if v.realityConfig != nil {
 				if conn, err = reality.Server(conn, v.realityConfig); err != nil {
 					newError(err).AtInfo().WriteToLog()

transport/internet/xtls/config.go

@@ -1,377 +0,0 @@
-package xtls
-
-import (
-	"crypto/hmac"
-	"crypto/x509"
-	"encoding/base64"
-	"strings"
-	"sync"
-	"time"
-
-	xtls "github.com/xtls/go"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/ocsp"
-	"github.com/xtls/xray-core/common/platform/filesystem"
-	"github.com/xtls/xray-core/common/protocol/tls/cert"
-	"github.com/xtls/xray-core/transport/internet"
-	"github.com/xtls/xray-core/transport/internet/tls"
-)
-
-var globalSessionCache = xtls.NewLRUClientSessionCache(128)
-
-// ParseCertificate converts a cert.Certificate to Certificate.
-func ParseCertificate(c *cert.Certificate) *Certificate {
-	if c != nil {
-		certPEM, keyPEM := c.ToPEM()
-		return &Certificate{
-			Certificate: certPEM,
-			Key:         keyPEM,
-		}
-	}
-	return nil
-}
-
-func (c *Config) loadSelfCertPool() (*x509.CertPool, error) {
-	root := x509.NewCertPool()
-	for _, cert := range c.Certificate {
-		if !root.AppendCertsFromPEM(cert.Certificate) {
-			return nil, newError("failed to append cert").AtWarning()
-		}
-	}
-	return root, nil
-}
-
-// BuildCertificates builds a list of TLS certificates from proto definition.
-func (c *Config) BuildCertificates() []*xtls.Certificate {
-	certs := make([]*xtls.Certificate, 0, len(c.Certificate))
-	for _, entry := range c.Certificate {
-		if entry.Usage != Certificate_ENCIPHERMENT {
-			continue
-		}
-		keyPair, err := xtls.X509KeyPair(entry.Certificate, entry.Key)
-		if err != nil {
-			newError("ignoring invalid X509 key pair").Base(err).AtWarning().WriteToLog()
-			continue
-		}
-		keyPair.Leaf, err = x509.ParseCertificate(keyPair.Certificate[0])
-		if err != nil {
-			newError("ignoring invalid certificate").Base(err).AtWarning().WriteToLog()
-			continue
-		}
-		certs = append(certs, &keyPair)
-		if !entry.OneTimeLoading {
-			var isOcspstapling bool
-			hotReloadInterval := uint64(3600)
-			if entry.OcspStapling != 0 {
-				hotReloadInterval = entry.OcspStapling
-				isOcspstapling = true
-			}
-			index := len(certs) - 1
-			go func(entry *Certificate, cert *xtls.Certificate, index int) {
-				t := time.NewTicker(time.Duration(hotReloadInterval) * time.Second)
-				for {
-					if entry.CertificatePath != "" && entry.KeyPath != "" {
-						newCert, err := filesystem.ReadFile(entry.CertificatePath)
-						if err != nil {
-							newError("failed to parse certificate").Base(err).AtError().WriteToLog()
-							<-t.C
-							continue
-						}
-						newKey, err := filesystem.ReadFile(entry.KeyPath)
-						if err != nil {
-							newError("failed to parse key").Base(err).AtError().WriteToLog()
-							<-t.C
-							continue
-						}
-						if string(newCert) != string(entry.Certificate) && string(newKey) != string(entry.Key) {
-							newKeyPair, err := xtls.X509KeyPair(newCert, newKey)
-							if err != nil {
-								newError("ignoring invalid X509 key pair").Base(err).AtError().WriteToLog()
-								<-t.C
-								continue
-							}
-							if newKeyPair.Leaf, err = x509.ParseCertificate(newKeyPair.Certificate[0]); err != nil {
-								newError("ignoring invalid certificate").Base(err).AtError().WriteToLog()
-								<-t.C
-								continue
-							}
-							cert = &newKeyPair
-						}
-					}
-					if isOcspstapling {
-						if newOCSPData, err := ocsp.GetOCSPForCert(cert.Certificate); err != nil {
-							newError("ignoring invalid OCSP").Base(err).AtWarning().WriteToLog()
-						} else if string(newOCSPData) != string(cert.OCSPStaple) {
-							cert.OCSPStaple = newOCSPData
-						}
-					}
-					certs[index] = cert
-					<-t.C
-				}
-			}(entry, certs[index], index)
-		}
-	}
-	return certs
-}
-
-func isCertificateExpired(c *xtls.Certificate) bool {
-	if c.Leaf == nil && len(c.Certificate) > 0 {
-		if pc, err := x509.ParseCertificate(c.Certificate[0]); err == nil {
-			c.Leaf = pc
-		}
-	}
-
-	// If leaf is not there, the certificate is probably not used yet. We trust user to provide a valid certificate.
-	return c.Leaf != nil && c.Leaf.NotAfter.Before(time.Now().Add(-time.Minute))
-}
-
-func issueCertificate(rawCA *Certificate, domain string) (*xtls.Certificate, error) {
-	parent, err := cert.ParseCertificate(rawCA.Certificate, rawCA.Key)
-	if err != nil {
-		return nil, newError("failed to parse raw certificate").Base(err)
-	}
-	newCert, err := cert.Generate(parent, cert.CommonName(domain), cert.DNSNames(domain))
-	if err != nil {
-		return nil, newError("failed to generate new certificate for ", domain).Base(err)
-	}
-	newCertPEM, newKeyPEM := newCert.ToPEM()
-	cert, err := xtls.X509KeyPair(newCertPEM, newKeyPEM)
-	return &cert, err
-}
-
-func (c *Config) getCustomCA() []*Certificate {
-	certs := make([]*Certificate, 0, len(c.Certificate))
-	for _, certificate := range c.Certificate {
-		if certificate.Usage == Certificate_AUTHORITY_ISSUE {
-			certs = append(certs, certificate)
-		}
-	}
-	return certs
-}
-
-func getGetCertificateFunc(c *xtls.Config, ca []*Certificate) func(hello *xtls.ClientHelloInfo) (*xtls.Certificate, error) {
-	var access sync.RWMutex
-
-	return func(hello *xtls.ClientHelloInfo) (*xtls.Certificate, error) {
-		domain := hello.ServerName
-		certExpired := false
-
-		access.RLock()
-		certificate, found := c.NameToCertificate[domain]
-		access.RUnlock()
-
-		if found {
-			if !isCertificateExpired(certificate) {
-				return certificate, nil
-			}
-			certExpired = true
-		}
-
-		if certExpired {
-			newCerts := make([]xtls.Certificate, 0, len(c.Certificates))
-
-			access.Lock()
-			for _, certificate := range c.Certificates {
-				if !isCertificateExpired(&certificate) {
-					newCerts = append(newCerts, certificate)
-				}
-			}
-
-			c.Certificates = newCerts
-			access.Unlock()
-		}
-
-		var issuedCertificate *xtls.Certificate
-
-		// Create a new certificate from existing CA if possible
-		for _, rawCert := range ca {
-			if rawCert.Usage == Certificate_AUTHORITY_ISSUE {
-				newCert, err := issueCertificate(rawCert, domain)
-				if err != nil {
-					newError("failed to issue new certificate for ", domain).Base(err).WriteToLog()
-					continue
-				}
-
-				access.Lock()
-				c.Certificates = append(c.Certificates, *newCert)
-				issuedCertificate = &c.Certificates[len(c.Certificates)-1]
-				access.Unlock()
-				break
-			}
-		}
-
-		if issuedCertificate == nil {
-			return nil, newError("failed to create a new certificate for ", domain)
-		}
-
-		access.Lock()
-		c.BuildNameToCertificate()
-		access.Unlock()
-
-		return issuedCertificate, nil
-	}
-}
-
-func getNewGetCertificateFunc(certs []*xtls.Certificate, rejectUnknownSNI bool) func(hello *xtls.ClientHelloInfo) (*xtls.Certificate, error) {
-	return func(hello *xtls.ClientHelloInfo) (*xtls.Certificate, error) {
-		if len(certs) == 0 {
-			return nil, errNoCertificates
-		}
-		sni := strings.ToLower(hello.ServerName)
-		if !rejectUnknownSNI && (len(certs) == 1 || sni == "") {
-			return certs[0], nil
-		}
-		gsni := "*"
-		if index := strings.IndexByte(sni, '.'); index != -1 {
-			gsni += sni[index:]
-		}
-		for _, keyPair := range certs {
-			if keyPair.Leaf.Subject.CommonName == sni || keyPair.Leaf.Subject.CommonName == gsni {
-				return keyPair, nil
-			}
-			for _, name := range keyPair.Leaf.DNSNames {
-				if name == sni || name == gsni {
-					return keyPair, nil
-				}
-			}
-		}
-		if rejectUnknownSNI {
-			return nil, errNoCertificates
-		}
-		return certs[0], nil
-	}
-}
-
-func (c *Config) parseServerName() string {
-	return c.ServerName
-}
-
-func (c *Config) verifyPeerCert(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
-	if c.PinnedPeerCertificateChainSha256 != nil {
-		hashValue := tls.GenerateCertChainHash(rawCerts)
-		for _, v := range c.PinnedPeerCertificateChainSha256 {
-			if hmac.Equal(hashValue, v) {
-				return nil
-			}
-		}
-		return newError("peer cert is unrecognized: ", base64.StdEncoding.EncodeToString(hashValue))
-	}
-	return nil
-}
-
-// GetXTLSConfig converts this Config into xtls.Config.
-func (c *Config) GetXTLSConfig(opts ...Option) *xtls.Config {
-	root, err := c.getCertPool()
-	if err != nil {
-		newError("failed to load system root certificate").AtError().Base(err).WriteToLog()
-	}
-
-	if c == nil {
-		return &xtls.Config{
-			ClientSessionCache:     globalSessionCache,
-			RootCAs:                root,
-			InsecureSkipVerify:     false,
-			NextProtos:             nil,
-			SessionTicketsDisabled: true,
-		}
-	}
-
-	config := &xtls.Config{
-		ClientSessionCache:     globalSessionCache,
-		RootCAs:                root,
-		InsecureSkipVerify:     c.AllowInsecure,
-		NextProtos:             c.NextProtocol,
-		SessionTicketsDisabled: !c.EnableSessionResumption,
-		VerifyPeerCertificate:  c.verifyPeerCert,
-	}
-
-	for _, opt := range opts {
-		opt(config)
-	}
-
-	caCerts := c.getCustomCA()
-	if len(caCerts) > 0 {
-		config.GetCertificate = getGetCertificateFunc(config, caCerts)
-	} else {
-		config.GetCertificate = getNewGetCertificateFunc(c.BuildCertificates(), c.RejectUnknownSni)
-	}
-
-	if sn := c.parseServerName(); len(sn) > 0 {
-		config.ServerName = sn
-	}
-
-	if len(config.NextProtos) == 0 {
-		config.NextProtos = []string{"h2", "http/1.1"}
-	}
-
-	switch c.MinVersion {
-	case "1.0":
-		config.MinVersion = xtls.VersionTLS10
-	case "1.1":
-		config.MinVersion = xtls.VersionTLS11
-	case "1.2":
-		config.MinVersion = xtls.VersionTLS12
-	case "1.3":
-		config.MinVersion = xtls.VersionTLS13
-	}
-
-	switch c.MaxVersion {
-	case "1.0":
-		config.MaxVersion = xtls.VersionTLS10
-	case "1.1":
-		config.MaxVersion = xtls.VersionTLS11
-	case "1.2":
-		config.MaxVersion = xtls.VersionTLS12
-	case "1.3":
-		config.MaxVersion = xtls.VersionTLS13
-	}
-
-	if len(c.CipherSuites) > 0 {
-		id := make(map[string]uint16)
-		for _, s := range xtls.CipherSuites() {
-			id[s.Name] = s.ID
-		}
-		for _, n := range strings.Split(c.CipherSuites, ":") {
-			if id[n] != 0 {
-				config.CipherSuites = append(config.CipherSuites, id[n])
-			}
-		}
-	}
-
-	config.PreferServerCipherSuites = c.PreferServerCipherSuites
-
-	return config
-}
-
-// Option for building XTLS config.
-type Option func(*xtls.Config)
-
-// WithDestination sets the server name in XTLS config.
-func WithDestination(dest net.Destination) Option {
-	return func(config *xtls.Config) {
-		if dest.Address.Family().IsDomain() && config.ServerName == "" {
-			config.ServerName = dest.Address.Domain()
-		}
-	}
-}
-
-// WithNextProto sets the ALPN values in XTLS config.
-func WithNextProto(protocol ...string) Option {
-	return func(config *xtls.Config) {
-		if len(config.NextProtos) == 0 {
-			config.NextProtos = protocol
-		}
-	}
-}
-
-// ConfigFromStreamSettings fetches Config from stream settings. Nil if not found.
-func ConfigFromStreamSettings(settings *internet.MemoryStreamConfig) *Config {
-	if settings == nil {
-		return nil
-	}
-	config, ok := settings.SecuritySettings.(*Config)
-	if !ok {
-		return nil
-	}
-	return config
-}

transport/internet/xtls/config.pb.go

@@ -1,478 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
-// source: transport/internet/xtls/config.proto
-
-package xtls
-
-import (
-	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)
-)
-
-type Certificate_Usage int32
-
-const (
-	Certificate_ENCIPHERMENT     Certificate_Usage = 0
-	Certificate_AUTHORITY_VERIFY Certificate_Usage = 1
-	Certificate_AUTHORITY_ISSUE  Certificate_Usage = 2
-)
-
-// Enum value maps for Certificate_Usage.
-var (
-	Certificate_Usage_name = map[int32]string{
-		0: "ENCIPHERMENT",
-		1: "AUTHORITY_VERIFY",
-		2: "AUTHORITY_ISSUE",
-	}
-	Certificate_Usage_value = map[string]int32{
-		"ENCIPHERMENT":     0,
-		"AUTHORITY_VERIFY": 1,
-		"AUTHORITY_ISSUE":  2,
-	}
-)
-
-func (x Certificate_Usage) Enum() *Certificate_Usage {
-	p := new(Certificate_Usage)
-	*p = x
-	return p
-}
-
-func (x Certificate_Usage) String() string {
-	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
-}
-
-func (Certificate_Usage) Descriptor() protoreflect.EnumDescriptor {
-	return file_transport_internet_xtls_config_proto_enumTypes[0].Descriptor()
-}
-
-func (Certificate_Usage) Type() protoreflect.EnumType {
-	return &file_transport_internet_xtls_config_proto_enumTypes[0]
-}
-
-func (x Certificate_Usage) Number() protoreflect.EnumNumber {
-	return protoreflect.EnumNumber(x)
-}
-
-// Deprecated: Use Certificate_Usage.Descriptor instead.
-func (Certificate_Usage) EnumDescriptor() ([]byte, []int) {
-	return file_transport_internet_xtls_config_proto_rawDescGZIP(), []int{0, 0}
-}
-
-type Certificate struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// TLS certificate in x509 format.
-	Certificate []byte `protobuf:"bytes,1,opt,name=certificate,proto3" json:"certificate,omitempty"`
-	// TLS key in x509 format.
-	Key          []byte            `protobuf:"bytes,2,opt,name=key,proto3" json:"key,omitempty"`
-	Usage        Certificate_Usage `protobuf:"varint,3,opt,name=usage,proto3,enum=xray.transport.internet.xtls.Certificate_Usage" json:"usage,omitempty"`
-	OcspStapling uint64            `protobuf:"varint,4,opt,name=ocsp_stapling,json=ocspStapling,proto3" json:"ocsp_stapling,omitempty"`
-	// TLS certificate path
-	CertificatePath string `protobuf:"bytes,5,opt,name=certificate_path,json=certificatePath,proto3" json:"certificate_path,omitempty"`
-	// TLS Key path
-	KeyPath string `protobuf:"bytes,6,opt,name=key_path,json=keyPath,proto3" json:"key_path,omitempty"`
-	// If true, one-Time Loading
-	OneTimeLoading bool `protobuf:"varint,7,opt,name=One_time_loading,json=OneTimeLoading,proto3" json:"One_time_loading,omitempty"`
-}
-
-func (x *Certificate) Reset() {
-	*x = Certificate{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_transport_internet_xtls_config_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *Certificate) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Certificate) ProtoMessage() {}
-
-func (x *Certificate) ProtoReflect() protoreflect.Message {
-	mi := &file_transport_internet_xtls_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 Certificate.ProtoReflect.Descriptor instead.
-func (*Certificate) Descriptor() ([]byte, []int) {
-	return file_transport_internet_xtls_config_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *Certificate) GetCertificate() []byte {
-	if x != nil {
-		return x.Certificate
-	}
-	return nil
-}
-
-func (x *Certificate) GetKey() []byte {
-	if x != nil {
-		return x.Key
-	}
-	return nil
-}
-
-func (x *Certificate) GetUsage() Certificate_Usage {
-	if x != nil {
-		return x.Usage
-	}
-	return Certificate_ENCIPHERMENT
-}
-
-func (x *Certificate) GetOcspStapling() uint64 {
-	if x != nil {
-		return x.OcspStapling
-	}
-	return 0
-}
-
-func (x *Certificate) GetCertificatePath() string {
-	if x != nil {
-		return x.CertificatePath
-	}
-	return ""
-}
-
-func (x *Certificate) GetKeyPath() string {
-	if x != nil {
-		return x.KeyPath
-	}
-	return ""
-}
-
-func (x *Certificate) GetOneTimeLoading() bool {
-	if x != nil {
-		return x.OneTimeLoading
-	}
-	return false
-}
-
-type Config struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// Whether or not to allow self-signed certificates.
-	AllowInsecure bool `protobuf:"varint,1,opt,name=allow_insecure,json=allowInsecure,proto3" json:"allow_insecure,omitempty"`
-	// List of certificates to be served on server.
-	Certificate []*Certificate `protobuf:"bytes,2,rep,name=certificate,proto3" json:"certificate,omitempty"`
-	// Override server name.
-	ServerName string `protobuf:"bytes,3,opt,name=server_name,json=serverName,proto3" json:"server_name,omitempty"`
-	// Lists of string as ALPN values.
-	NextProtocol []string `protobuf:"bytes,4,rep,name=next_protocol,json=nextProtocol,proto3" json:"next_protocol,omitempty"`
-	// Whether or not to enable session (ticket) resumption.
-	EnableSessionResumption bool `protobuf:"varint,5,opt,name=enable_session_resumption,json=enableSessionResumption,proto3" json:"enable_session_resumption,omitempty"`
-	// If true, root certificates on the system will not be loaded for
-	// verification.
-	DisableSystemRoot bool `protobuf:"varint,6,opt,name=disable_system_root,json=disableSystemRoot,proto3" json:"disable_system_root,omitempty"`
-	// The minimum TLS version.
-	MinVersion string `protobuf:"bytes,7,opt,name=min_version,json=minVersion,proto3" json:"min_version,omitempty"`
-	// The maximum TLS version.
-	MaxVersion string `protobuf:"bytes,8,opt,name=max_version,json=maxVersion,proto3" json:"max_version,omitempty"`
-	// Specify cipher suites, except for TLS 1.3.
-	CipherSuites string `protobuf:"bytes,9,opt,name=cipher_suites,json=cipherSuites,proto3" json:"cipher_suites,omitempty"`
-	// Whether the server selects its most preferred ciphersuite.
-	PreferServerCipherSuites bool `protobuf:"varint,10,opt,name=prefer_server_cipher_suites,json=preferServerCipherSuites,proto3" json:"prefer_server_cipher_suites,omitempty"`
-	RejectUnknownSni         bool `protobuf:"varint,12,opt,name=reject_unknown_sni,json=rejectUnknownSni,proto3" json:"reject_unknown_sni,omitempty"`
-	// @Document A pinned certificate chain sha256 hash.
-	// @Document If the server's hash does not match this value, the connection will be aborted.
-	// @Document This value replace allow_insecure.
-	// @Critical
-	PinnedPeerCertificateChainSha256 [][]byte `protobuf:"bytes,13,rep,name=pinned_peer_certificate_chain_sha256,json=pinnedPeerCertificateChainSha256,proto3" json:"pinned_peer_certificate_chain_sha256,omitempty"`
-}
-
-func (x *Config) Reset() {
-	*x = Config{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_transport_internet_xtls_config_proto_msgTypes[1]
-		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_internet_xtls_config_proto_msgTypes[1]
-	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_internet_xtls_config_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *Config) GetAllowInsecure() bool {
-	if x != nil {
-		return x.AllowInsecure
-	}
-	return false
-}
-
-func (x *Config) GetCertificate() []*Certificate {
-	if x != nil {
-		return x.Certificate
-	}
-	return nil
-}
-
-func (x *Config) GetServerName() string {
-	if x != nil {
-		return x.ServerName
-	}
-	return ""
-}
-
-func (x *Config) GetNextProtocol() []string {
-	if x != nil {
-		return x.NextProtocol
-	}
-	return nil
-}
-
-func (x *Config) GetEnableSessionResumption() bool {
-	if x != nil {
-		return x.EnableSessionResumption
-	}
-	return false
-}
-
-func (x *Config) GetDisableSystemRoot() bool {
-	if x != nil {
-		return x.DisableSystemRoot
-	}
-	return false
-}
-
-func (x *Config) GetMinVersion() string {
-	if x != nil {
-		return x.MinVersion
-	}
-	return ""
-}
-
-func (x *Config) GetMaxVersion() string {
-	if x != nil {
-		return x.MaxVersion
-	}
-	return ""
-}
-
-func (x *Config) GetCipherSuites() string {
-	if x != nil {
-		return x.CipherSuites
-	}
-	return ""
-}
-
-func (x *Config) GetPreferServerCipherSuites() bool {
-	if x != nil {
-		return x.PreferServerCipherSuites
-	}
-	return false
-}
-
-func (x *Config) GetRejectUnknownSni() bool {
-	if x != nil {
-		return x.RejectUnknownSni
-	}
-	return false
-}
-
-func (x *Config) GetPinnedPeerCertificateChainSha256() [][]byte {
-	if x != nil {
-		return x.PinnedPeerCertificateChainSha256
-	}
-	return nil
-}
-
-var File_transport_internet_xtls_config_proto protoreflect.FileDescriptor
-
-var file_transport_internet_xtls_config_proto_rawDesc = []byte{
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-}
-
-var (
-	file_transport_internet_xtls_config_proto_rawDescOnce sync.Once
-	file_transport_internet_xtls_config_proto_rawDescData = file_transport_internet_xtls_config_proto_rawDesc
-)
-
-func file_transport_internet_xtls_config_proto_rawDescGZIP() []byte {
-	file_transport_internet_xtls_config_proto_rawDescOnce.Do(func() {
-		file_transport_internet_xtls_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_transport_internet_xtls_config_proto_rawDescData)
-	})
-	return file_transport_internet_xtls_config_proto_rawDescData
-}
-
-var file_transport_internet_xtls_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_transport_internet_xtls_config_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var file_transport_internet_xtls_config_proto_goTypes = []interface{}{
-	(Certificate_Usage)(0), // 0: xray.transport.internet.xtls.Certificate.Usage
-	(*Certificate)(nil),    // 1: xray.transport.internet.xtls.Certificate
-	(*Config)(nil),         // 2: xray.transport.internet.xtls.Config
-}
-var file_transport_internet_xtls_config_proto_depIdxs = []int32{
-	0, // 0: xray.transport.internet.xtls.Certificate.usage:type_name -> xray.transport.internet.xtls.Certificate.Usage
-	1, // 1: xray.transport.internet.xtls.Config.certificate:type_name -> xray.transport.internet.xtls.Certificate
-	2, // [2:2] is the sub-list for method output_type
-	2, // [2:2] is the sub-list for method input_type
-	2, // [2:2] is the sub-list for extension type_name
-	2, // [2:2] is the sub-list for extension extendee
-	0, // [0:2] is the sub-list for field type_name
-}
-
-func init() { file_transport_internet_xtls_config_proto_init() }
-func file_transport_internet_xtls_config_proto_init() {
-	if File_transport_internet_xtls_config_proto != nil {
-		return
-	}
-	if !protoimpl.UnsafeEnabled {
-		file_transport_internet_xtls_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Certificate); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_transport_internet_xtls_config_proto_msgTypes[1].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_internet_xtls_config_proto_rawDesc,
-			NumEnums:      1,
-			NumMessages:   2,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_transport_internet_xtls_config_proto_goTypes,
-		DependencyIndexes: file_transport_internet_xtls_config_proto_depIdxs,
-		EnumInfos:         file_transport_internet_xtls_config_proto_enumTypes,
-		MessageInfos:      file_transport_internet_xtls_config_proto_msgTypes,
-	}.Build()
-	File_transport_internet_xtls_config_proto = out.File
-	file_transport_internet_xtls_config_proto_rawDesc = nil
-	file_transport_internet_xtls_config_proto_goTypes = nil
-	file_transport_internet_xtls_config_proto_depIdxs = nil
-}

transport/internet/xtls/config.proto

@@ -1,76 +0,0 @@
-syntax = "proto3";
-
-package xray.transport.internet.xtls;
-option csharp_namespace = "Xray.Transport.Internet.Xtls";
-option go_package = "github.com/xtls/xray-core/transport/internet/xtls";
-option java_package = "com.xray.transport.internet.xtls";
-option java_multiple_files = true;
-
-message Certificate {
-  // TLS certificate in x509 format.
-  bytes certificate = 1;
-
-  // TLS key in x509 format.
-  bytes key = 2;
-
-  enum Usage {
-    ENCIPHERMENT = 0;
-    AUTHORITY_VERIFY = 1;
-    AUTHORITY_ISSUE = 2;
-  }
-
-  Usage usage = 3;
-
-  uint64 ocsp_stapling = 4;
-
-  // TLS certificate path
-  string certificate_path = 5;
-
-  // TLS Key path
-  string key_path = 6;
-
-  // If true, one-Time Loading
-  bool One_time_loading = 7;
-}
-
-message Config {
-  // Whether or not to allow self-signed certificates.
-  bool allow_insecure = 1;
-
-  // List of certificates to be served on server.
-  repeated Certificate certificate = 2;
-
-  // Override server name.
-  string server_name = 3;
-
-  // Lists of string as ALPN values.
-  repeated string next_protocol = 4;
-
-  // Whether or not to enable session (ticket) resumption.
-  bool enable_session_resumption = 5;
-
-  // If true, root certificates on the system will not be loaded for
-  // verification.
-  bool disable_system_root = 6;
-
-  // The minimum TLS version.
-  string min_version = 7;
-
-  // The maximum TLS version.
-  string max_version = 8;
-
-  // Specify cipher suites, except for TLS 1.3.
-  string cipher_suites = 9;
-
-  // Whether the server selects its most preferred ciphersuite.
-  bool prefer_server_cipher_suites = 10;
-
-  bool reject_unknown_sni = 12;
-
-  /* @Document A pinned certificate chain sha256 hash.
-     @Document If the server's hash does not match this value, the connection will be aborted.
-     @Document This value replace allow_insecure.
-     @Critical
-  */
-  repeated bytes pinned_peer_certificate_chain_sha256 = 13;
-}

transport/internet/xtls/config_other.go

@@ -1,53 +0,0 @@
-//go:build !windows
-// +build !windows
-
-package xtls
-
-import (
-	"crypto/x509"
-	"sync"
-)
-
-type rootCertsCache struct {
-	sync.Mutex
-	pool *x509.CertPool
-}
-
-func (c *rootCertsCache) load() (*x509.CertPool, error) {
-	c.Lock()
-	defer c.Unlock()
-
-	if c.pool != nil {
-		return c.pool, nil
-	}
-
-	pool, err := x509.SystemCertPool()
-	if err != nil {
-		return nil, err
-	}
-	c.pool = pool
-	return pool, nil
-}
-
-var rootCerts rootCertsCache
-
-func (c *Config) getCertPool() (*x509.CertPool, error) {
-	if c.DisableSystemRoot {
-		return c.loadSelfCertPool()
-	}
-
-	if len(c.Certificate) == 0 {
-		return rootCerts.load()
-	}
-
-	pool, err := x509.SystemCertPool()
-	if err != nil {
-		return nil, newError("system root").AtWarning().Base(err)
-	}
-	for _, cert := range c.Certificate {
-		if !pool.AppendCertsFromPEM(cert.Certificate) {
-			return nil, newError("append cert to root").AtWarning().Base(err)
-		}
-	}
-	return pool, err
-}

transport/internet/xtls/config_test.go

@@ -1,97 +0,0 @@
-package xtls_test
-
-import (
-	"crypto/x509"
-	"testing"
-	"time"
-
-	xtls "github.com/xtls/go"
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/protocol/tls/cert"
-	. "github.com/xtls/xray-core/transport/internet/xtls"
-)
-
-func TestCertificateIssuing(t *testing.T) {
-	certificate := ParseCertificate(cert.MustGenerate(nil, cert.Authority(true), cert.KeyUsage(x509.KeyUsageCertSign)))
-	certificate.Usage = Certificate_AUTHORITY_ISSUE
-
-	c := &Config{
-		Certificate: []*Certificate{
-			certificate,
-		},
-	}
-
-	xtlsConfig := c.GetXTLSConfig()
-	xrayCert, err := xtlsConfig.GetCertificate(&xtls.ClientHelloInfo{
-		ServerName: "www.example.com",
-	})
-	common.Must(err)
-
-	x509Cert, err := x509.ParseCertificate(xrayCert.Certificate[0])
-	common.Must(err)
-	if !x509Cert.NotAfter.After(time.Now()) {
-		t.Error("NotAfter: ", x509Cert.NotAfter)
-	}
-}
-
-func TestExpiredCertificate(t *testing.T) {
-	caCert := cert.MustGenerate(nil, cert.Authority(true), cert.KeyUsage(x509.KeyUsageCertSign))
-	expiredCert := cert.MustGenerate(caCert, cert.NotAfter(time.Now().Add(time.Minute*-2)), cert.CommonName("www.example.com"), cert.DNSNames("www.example.com"))
-
-	certificate := ParseCertificate(caCert)
-	certificate.Usage = Certificate_AUTHORITY_ISSUE
-
-	certificate2 := ParseCertificate(expiredCert)
-
-	c := &Config{
-		Certificate: []*Certificate{
-			certificate,
-			certificate2,
-		},
-	}
-
-	xtlsConfig := c.GetXTLSConfig()
-	xrayCert, err := xtlsConfig.GetCertificate(&xtls.ClientHelloInfo{
-		ServerName: "www.example.com",
-	})
-	common.Must(err)
-
-	x509Cert, err := x509.ParseCertificate(xrayCert.Certificate[0])
-	common.Must(err)
-	if !x509Cert.NotAfter.After(time.Now()) {
-		t.Error("NotAfter: ", x509Cert.NotAfter)
-	}
-}
-
-func TestInsecureCertificates(t *testing.T) {
-	c := &Config{}
-
-	xtlsConfig := c.GetXTLSConfig()
-	if len(xtlsConfig.CipherSuites) > 0 {
-		t.Fatal("Unexpected tls cipher suites list: ", xtlsConfig.CipherSuites)
-	}
-}
-
-func BenchmarkCertificateIssuing(b *testing.B) {
-	certificate := ParseCertificate(cert.MustGenerate(nil, cert.Authority(true), cert.KeyUsage(x509.KeyUsageCertSign)))
-	certificate.Usage = Certificate_AUTHORITY_ISSUE
-
-	c := &Config{
-		Certificate: []*Certificate{
-			certificate,
-		},
-	}
-
-	xtlsConfig := c.GetXTLSConfig()
-	lenCerts := len(xtlsConfig.Certificates)
-
-	b.ResetTimer()
-
-	for i := 0; i < b.N; i++ {
-		_, _ = xtlsConfig.GetCertificate(&xtls.ClientHelloInfo{
-			ServerName: "www.example.com",
-		})
-		delete(xtlsConfig.NameToCertificate, "www.example.com")
-		xtlsConfig.Certificates = xtlsConfig.Certificates[:lenCerts]
-	}
-}

transport/internet/xtls/config_windows.go

@@ -1,14 +0,0 @@
-//go:build windows
-// +build windows
-
-package xtls
-
-import "crypto/x509"
-
-func (c *Config) getCertPool() (*x509.CertPool, error) {
-	if c.DisableSystemRoot {
-		return c.loadSelfCertPool()
-	}
-
-	return nil, nil
-}

transport/internet/xtls/errors.generated.go

@@ -1,9 +0,0 @@
-package xtls
-
-import "github.com/xtls/xray-core/common/errors"
-
-type errPathObjHolder struct{}
-
-func newError(values ...interface{}) *errors.Error {
-	return errors.New(values...).WithPathObj(errPathObjHolder{})
-}

transport/internet/xtls/unsafe.go

@@ -1,6 +0,0 @@
-package xtls
-
-import _ "unsafe"
-
-//go:linkname errNoCertificates github.com/xtls/go.errNoCertificates
-var errNoCertificates error

transport/internet/xtls/xtls.go

@@ -1,35 +0,0 @@
-package xtls
-
-import (
-	xtls "github.com/xtls/go"
-	"github.com/xtls/xray-core/common/net"
-)
-
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
-
-type Conn struct {
-	*xtls.Conn
-}
-
-func (c *Conn) HandshakeAddress() net.Address {
-	if err := c.Handshake(); err != nil {
-		return nil
-	}
-	state := c.ConnectionState()
-	if state.ServerName == "" {
-		return nil
-	}
-	return net.ParseAddress(state.ServerName)
-}
-
-// Client initiates a XTLS client handshake on the given connection.
-func Client(c net.Conn, config *xtls.Config) net.Conn {
-	xtlsConn := xtls.Client(c, config)
-	return &Conn{Conn: xtlsConn}
-}
-
-// Server initiates a XTLS server handshake on the given connection.
-func Server(c net.Conn, config *xtls.Config) net.Conn {
-	xtlsConn := xtls.Server(c, config)
-	return &Conn{Conn: xtlsConn}
-}