Update version 1.5.8

Fix DoS attack vulnerability in VMess Option Processing
Add shadowsocks 2022 relay service
2025-08-22 17:46:48 +08:00 · 2022-06-19 19:14:53 -04:00 · 2022-06-19 19:13:37 -04:00 · 2022-06-19 22:17:23 +08:00 · 2022-06-11 08:01:30 -04:00 · 2022-06-10 15:53:05 +08:00
26 changed files with 1058 additions and 377 deletions
--- a/README.md
+++ b/README.md
@@ -49,6 +49,7 @@
  - [Kitsunebi](https://github.com/rurirei/Kitsunebi/tree/release_xtls)
 - iOS & macOS (with M1 chip)
  - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
+  - [Stash](https://apps.apple.com/app/stash/id1596063349)
 - macOS (Intel chip & M1 chip)
  - [Qv2ray](https://github.com/Qv2ray/Qv2ray) (This project had been archived and currently inactive)
  - [V2RayXS](https://github.com/tzmax/V2RayXS)
--- a/app/proxyman/inbound/worker.go
+++ b/app/proxyman/inbound/worker.go
@@ -108,9 +108,7 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 		newError("connection ends").Base(err).WriteToLog(session.ExportIDToError(ctx))
 	}
 	cancel()
-	if err := conn.Close(); err != nil {
-		newError("failed to close connection").Base(err).WriteToLog(session.ExportIDToError(ctx))
-	}
+	conn.Close()
 }

 func (w *tcpWorker) Proxy() proxy.Inbound {
--- a/app/proxyman/outbound/handler.go
+++ b/app/proxyman/outbound/handler.go
@@ -2,6 +2,9 @@ package outbound

 import (
 	"context"
+	"errors"
+	"io"
+	"os"

 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
@@ -141,7 +144,13 @@ func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 			common.Interrupt(link.Writer)
 		}
 	} else {
-		if err := h.proxy.Process(ctx, link, h); err != nil {
+		err := h.proxy.Process(ctx, link, h)
+		if err != nil {
+			if errors.Is(err, io.EOF) || errors.Is(err, io.ErrClosedPipe) || errors.Is(err, context.Canceled) {
+				err = nil
+			}
+		}
+		if err != nil {
 			// Ensure outbound ray is properly closed.
 			err := newError("failed to process outbound traffic").Base(err)
 			session.SubmitOutboundErrorToOriginator(ctx, err)
@@ -202,6 +211,10 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 		}
 	}

+	if conn, err := h.getUoTConnection(ctx, dest); err != os.ErrInvalid {
+		return conn, err
+	}
+
 	conn, err := internet.Dial(ctx, dest, h.streamSettings)
 	return h.getStatCouterConnection(conn), err
 }
--- a/app/proxyman/outbound/uot.go
+++ b/app/proxyman/outbound/uot.go
@@ -0,0 +1,25 @@
+//go:build go1.18
+
+package outbound
+
+import (
+	"context"
+	"os"
+
+	"github.com/sagernet/sing/common/uot"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/transport/internet"
+	"github.com/xtls/xray-core/transport/internet/stat"
+)
+
+func (h *Handler) getUoTConnection(ctx context.Context, dest net.Destination) (stat.Connection, error) {
+	if !dest.Address.Family().IsDomain() || dest.Address.Domain() != uot.UOTMagicAddress {
+		return nil, os.ErrInvalid
+	}
+	packetConn, err := internet.ListenSystemPacket(ctx, &net.UDPAddr{IP: net.AnyIP.IP(), Port: 0}, h.streamSettings.SocketSettings)
+	if err != nil {
+		return nil, newError("unable to listen socket").Base(err)
+	}
+	conn := uot.NewServerConn(packetConn)
+	return h.getStatCouterConnection(conn), nil
+}
--- a/app/proxyman/outbound/uot_stub.go
+++ b/app/proxyman/outbound/uot_stub.go
@@ -0,0 +1,15 @@
+//go:build !go1.18
+
+package outbound
+
+import (
+	"context"
+	"os"
+
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/transport/internet/stat"
+)
+
+func (h *Handler) getUoTConnection(ctx context.Context, dest net.Destination) (stat.Connection, error) {
+	return nil, os.ErrInvalid
+}
--- a/common/buf/copy.go
+++ b/common/buf/copy.go
@@ -48,7 +48,7 @@ func (e readError) Error() string {
 	return e.error.Error()
 }

-func (e readError) Inner() error {
+func (e readError) Unwrap() error {
 	return e.error
 }

@@ -66,7 +66,7 @@ func (e writeError) Error() string {
 	return e.error.Error()
 }

-func (e writeError) Inner() error {
+func (e writeError) Unwrap() error {
 	return e.error
 }

--- a/common/errors/errors.go
+++ b/common/errors/errors.go
@@ -2,7 +2,6 @@
 package errors // import "github.com/xtls/xray-core/common/errors"

 import (
-	"os"
 	"reflect"
 	"strings"

@@ -13,8 +12,8 @@ import (
 const trim = len("github.com/xtls/xray-core/")

 type hasInnerError interface {
-	// Inner returns the underlying error of this one.
-	Inner() error
+	// Unwrap returns the underlying error of this one.
+	Unwrap() error
 }

 type hasSeverity interface {
@@ -72,8 +71,8 @@ func (err *Error) Error() string {
 	return builder.String()
 }

-// Inner implements hasInnerError.Inner()
-func (err *Error) Inner() error {
+// Unwrap implements hasInnerError.Unwrap()
+func (err *Error) Unwrap() error {
 	if err.inner == nil {
 		return nil
 	}
@@ -171,20 +170,10 @@ L:
 	for {
 		switch inner := err.(type) {
 		case hasInnerError:
-			if inner.Inner() == nil {
+			if inner.Unwrap() == nil {
 				break L
 			}
-			err = inner.Inner()
-		case *os.PathError:
-			if inner.Err == nil {
-				break L
-			}
-			err = inner.Err
-		case *os.SyscallError:
-			if inner.Err == nil {
-				break L
-			}
-			err = inner.Err
+			err = inner.Unwrap()
 		default:
 			break L
 		}
--- a/core/core.go
+++ b/core/core.go
@@ -18,7 +18,7 @@ import (
 )

 var (
-	version  = "1.5.6"
+	version  = "1.5.8"
 	build    = "Custom"
 	codename = "Xray, Penetrates Everything."
 	intro    = "A unified platform for anti-censorship."
--- a/go.mod
+++ b/go.mod
@@ -8,26 +8,26 @@ require (
 	github.com/golang/protobuf v1.5.2
 	github.com/google/go-cmp v0.5.8
 	github.com/gorilla/websocket v1.5.0
-	github.com/lucas-clemente/quic-go v0.27.1
+	github.com/lucas-clemente/quic-go v0.27.2
 	github.com/marten-seemann/qtls-go1-16 v0.1.5
-	github.com/marten-seemann/qtls-go1-17 v0.1.1
-	github.com/marten-seemann/qtls-go1-18 v0.1.1
+	github.com/marten-seemann/qtls-go1-17 v0.1.2
+	github.com/marten-seemann/qtls-go1-18 v0.1.2
 	github.com/miekg/dns v1.1.49
 	github.com/pelletier/go-toml v1.9.5
 	github.com/pires/go-proxyproto v0.6.2
 	github.com/refraction-networking/utls v1.1.0
-	github.com/sagernet/sing v0.0.0-20220528022605-7ba6439364fa
-	github.com/sagernet/sing-shadowsocks v0.0.0-20220528022643-c8403614f554
+	github.com/sagernet/sing v0.0.0-20220619130320-8793fe5e067d
+	github.com/sagernet/sing-shadowsocks v0.0.0-20220619134218-830a2f478eb1
 	github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb
-	github.com/stretchr/testify v1.7.1
+	github.com/stretchr/testify v1.7.2
 	github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e
 	github.com/xtls/go v0.0.0-20210920065950-d4af136d3672
 	go.starlark.net v0.0.0-20220328144851-d1966c6b9fcd
 	golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e
-	golang.org/x/net v0.0.0-20220526153639-5463443f8c37
-	golang.org/x/sync v0.0.0-20220513210516-0976fa681c29
-	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a
-	google.golang.org/grpc v1.46.2
+	golang.org/x/net v0.0.0-20220607020251-c690dde0001d
+	golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f
+	golang.org/x/sys v0.0.0-20220615213510-4f61da869c0c
+	google.golang.org/grpc v1.47.0
 	google.golang.org/protobuf v1.28.0
 	h12.io/socks v1.0.3
 )
--- a/go.sum
+++ b/go.sum
@@ -24,7 +24,6 @@ github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDk
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI=
-github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
@@ -40,7 +39,6 @@ github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymF
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
 github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
-github.com/envoyproxy/go-control-plane v0.9.10-0.20210907150352-cf90f659a021/go.mod h1:AFq3mo9L8Lqqiid3OhADV3RfLJnjiw63cSpi+fDTRC0=
 github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.mod h1:KJwIaB5Mv44NWtYuAOFCVOjcI94vtpEz2JU/D2v6IjE=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
@@ -48,8 +46,6 @@ github.com/francoispqt/gojay v1.2.13 h1:d2m3sFjloqoIUQU3TsHBgj6qg/BVGlTBeHDUmyJn
 github.com/francoispqt/gojay v1.2.13/go.mod h1:ehT5mTG4ua4581f1++1WLG0vPdaA9HaiDsoyrBGkyDY=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
-github.com/fsnotify/fsnotify v1.5.3 h1:vNFpj2z7YIbwh2bw7x35sqYpp2wfuq+pivKbWG09B8c=
-github.com/fsnotify/fsnotify v1.5.3/go.mod h1:T3375wBYaZdLLcVNkcVbzGHY7f1l/uK5T5Ai1i3InKU=
 github.com/fsnotify/fsnotify v1.5.4 h1:jRbGcIw6P2Meqdwuo0H1p6JVLbL5DHKAKlYndzMwVZI=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
@@ -122,17 +118,17 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/pty v1.1.3/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/lucas-clemente/quic-go v0.27.1 h1:sOw+4kFSVrdWOYmUjufQ9GBVPqZ+tu+jMtXxXNmRJyk=
-github.com/lucas-clemente/quic-go v0.27.1/go.mod h1:AzgQoPda7N+3IqMMMkywBKggIFo2KT6pfnlrQ2QieeI=
+github.com/lucas-clemente/quic-go v0.27.2 h1:zsMwwniyybb8B/UDNXRSYee7WpQJVOcjQEGgpw2ikXs=
+github.com/lucas-clemente/quic-go v0.27.2/go.mod h1:vXgO/11FBSKM+js1NxoaQ/bPtVFYfB7uxhfHXyMhl1A=
 github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
 github.com/mailru/easyjson v0.0.0-20190312143242-1de009706dbe/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/marten-seemann/qpack v0.2.1/go.mod h1:F7Gl5L1jIgN1D11ucXefiuJS9UMVP2opoCp2jDKb7wc=
 github.com/marten-seemann/qtls-go1-16 v0.1.5 h1:o9JrYPPco/Nukd/HpOHMHZoBDXQqoNtUCmny98/1uqQ=
 github.com/marten-seemann/qtls-go1-16 v0.1.5/go.mod h1:gNpI2Ol+lRS3WwSOtIUUtRwZEQMXjYK+dQSBFbethAk=
-github.com/marten-seemann/qtls-go1-17 v0.1.1 h1:DQjHPq+aOzUeh9/lixAGunn6rIOQyWChPSI4+hgW7jc=
-github.com/marten-seemann/qtls-go1-17 v0.1.1/go.mod h1:C2ekUKcDdz9SDWxec1N/MvcXBpaX9l3Nx67XaR84L5s=
-github.com/marten-seemann/qtls-go1-18 v0.1.1 h1:qp7p7XXUFL7fpBvSS1sWD+uSqPvzNQK43DH+/qEkj0Y=
-github.com/marten-seemann/qtls-go1-18 v0.1.1/go.mod h1:mJttiymBAByA49mhlNZZGrH5u1uXYZJ+RW28Py7f4m4=
+github.com/marten-seemann/qtls-go1-17 v0.1.2 h1:JADBlm0LYiVbuSySCHeY863dNkcpMmDR7s0bLKJeYlQ=
+github.com/marten-seemann/qtls-go1-17 v0.1.2/go.mod h1:C2ekUKcDdz9SDWxec1N/MvcXBpaX9l3Nx67XaR84L5s=
+github.com/marten-seemann/qtls-go1-18 v0.1.2 h1:JH6jmzbduz0ITVQ7ShevK10Av5+jBEKAHMntXmIV7kM=
+github.com/marten-seemann/qtls-go1-18 v0.1.2/go.mod h1:mJttiymBAByA49mhlNZZGrH5u1uXYZJ+RW28Py7f4m4=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=
 github.com/miekg/dns v1.1.49 h1:qe0mQU3Z/XpFeE+AEBo2rqaS1IPBJ3anmqZ4XiZJVG8=
@@ -176,10 +172,10 @@ github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 h1:f/FNXud6gA3MNr
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3/go.mod h1:HgjTstvQsPGkxUsCd2KWxErBblirPizecHcpD3ffK+s=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
-github.com/sagernet/sing v0.0.0-20220528022605-7ba6439364fa h1:h6VfxGy7dxiLn65xilHfETBYuA3UiS//iHCs0YZldnc=
-github.com/sagernet/sing v0.0.0-20220528022605-7ba6439364fa/go.mod h1:w2HnJzXKHpD6F5Z/9XlSD4qbcpHY2RSZuQnFzqgELMg=
-github.com/sagernet/sing-shadowsocks v0.0.0-20220528022643-c8403614f554 h1:YpkHkuWrjHZ5m/Qd4RRwqCwyXEXH9pOMxZCHbvlxAXw=
-github.com/sagernet/sing-shadowsocks v0.0.0-20220528022643-c8403614f554/go.mod h1:7tXTkaw26rZAWgwg9owPUvkmZMeluxk7ntQChLJia4o=
+github.com/sagernet/sing v0.0.0-20220619130320-8793fe5e067d h1:zr8y4wmNIxv6Kkvgqysx8Piy82ATAThEj1jaEf23YQs=
+github.com/sagernet/sing v0.0.0-20220619130320-8793fe5e067d/go.mod h1:I67R/q5f67xDExL2kL3RLIP7kGJBOPkYXkpRAykgC+E=
+github.com/sagernet/sing-shadowsocks v0.0.0-20220619134218-830a2f478eb1 h1:3GEdnWbuSX4XwSKnxLUB/1rMXUxSVKeyRhEeT7k7N1Q=
+github.com/sagernet/sing-shadowsocks v0.0.0-20220619134218-830a2f478eb1/go.mod h1:xk8Hh1hQiTeiY6jHCQjaxxN8M6B94JoGaNx5q61naE8=
 github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb h1:XfLJSPIOUX+osiMraVgIrMR27uMXnRJWGm1+GL8/63U=
 github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb/go.mod h1:bR6DqgcAl1zTcOX8/pE2Qkj9XO00eCNqmKb7lXP8EAg=
 github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
@@ -212,8 +208,8 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
-github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.2 h1:4jaiDzPyXQvSd7D0EjG45355tLlV3VOECpq10pLC+8s=
+github.com/stretchr/testify v1.7.2/go.mod h1:R6va5+xMeoiuVRoj+gSkQ7d3FALtqAAGI1FQKckRals=
 github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
 github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e h1:5QefA066A1tF8gHIiADmOVOV5LS43gt3ONnlEl3xkwI=
 github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e/go.mod h1:5t19P9LBIrNamL6AcMQOncg/r10y3Pc01AbHeMhwlpU=
@@ -264,10 +260,8 @@ golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
 golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.0.0-20220524220425-1d687d428aca h1:xTaFYiPROfpPhqrfTIDXj0ri1SpfueYT951s4bAuDO8=
-golang.org/x/net v0.0.0-20220524220425-1d687d428aca/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
-golang.org/x/net v0.0.0-20220526153639-5463443f8c37 h1:lUkvobShwKsOesNfWWlCS5q7fnbG1MEliIzwu886fn8=
-golang.org/x/net v0.0.0-20220526153639-5463443f8c37/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
+golang.org/x/net v0.0.0-20220607020251-c690dde0001d h1:4SFsTMi4UahlKoloni7L4eYzhFRifURQLw+yv0QDCx8=
+golang.org/x/net v0.0.0-20220607020251-c690dde0001d/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -281,8 +275,8 @@ golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20220513210516-0976fa681c29 h1:w8s32wxx3sY+OjLlv9qltkLU5yvJzxjjgiHWLjdIcw4=
-golang.org/x/sync v0.0.0-20220513210516-0976fa681c29/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f h1:Ax0t5p6N38Ga0dThY21weqDEyz2oklo4IvDkpigvkD8=
+golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181029174526-d69651ed3497/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -305,8 +299,8 @@ golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220412211240-33da011f77ad/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a h1:dGzPydgVsqGcTRVwiLJ1jVbufYwmzD3LfVPLKsKg+0k=
-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220615213510-4f61da869c0c h1:aFV+BgZ4svzjfabn8ERpuB4JI4N6/rdy1iusx77G3oU=
+golang.org/x/sys v0.0.0-20220615213510-4f61da869c0c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -336,8 +330,6 @@ golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f h1:GGU+dLjvlC3qDwqYgL6UgRmHXhOOgns0bZu2Ty5mm6U=
-golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20220517211312-f3a8303e98df h1:5Pf6pFKu98ODmgnpvkJ3kFUOQGGLIzLIkbzUHp47618=
 golang.org/x/xerrors v0.0.0-20220517211312-f3a8303e98df/go.mod h1:K8+ghG5WaK9qNqU5K3HdILfMLy1f3aNYFI/wnl100a8=
 google.golang.org/api v0.0.0-20180910000450-7ca32eb868bf/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
@@ -355,8 +347,6 @@ google.golang.org/genproto v0.0.0-20190306203927-b5d61aea6440/go.mod h1:VzzqZJRn
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
-google.golang.org/genproto v0.0.0-20220422154200-b37d22cd5731 h1:nquqdM9+ps0JZcIiI70+tqoaIFS5Ql4ZuK8UXnz3HfE=
-google.golang.org/genproto v0.0.0-20220422154200-b37d22cd5731/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
 google.golang.org/genproto v0.0.0-20220527130721-00d5c0f3be58 h1:a221mAAEAzq4Lz6ZWRkcS8ptb2mxoxYSt4N68aRyQHM=
 google.golang.org/genproto v0.0.0-20220527130721-00d5c0f3be58/go.mod h1:yKyY4AMRwFiC8yMMNaMi+RkCnjZJt9LoWuvhXjMs+To=
 google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
@@ -368,9 +358,9 @@ google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQ
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.45.0/go.mod h1:lN7owxKUQEqMfSyQikvvk5tf/6zMPsrK+ONuO11+0rQ=
-google.golang.org/grpc v1.46.2 h1:u+MLGgVf7vRdjEYZ8wDFhAVNmhkbJ5hmrA1LMWK1CAQ=
 google.golang.org/grpc v1.46.2/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
+google.golang.org/grpc v1.47.0 h1:9n77onPX5F3qfFCqjy9dhn8PbNQsIKeVU04J9G7umt8=
+google.golang.org/grpc v1.47.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -401,8 +391,6 @@ gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
--- a/infra/conf/shadowsocks.go
+++ b/infra/conf/shadowsocks.go
@@ -1,3 +1,5 @@
+//go:build go1.18
+
 package conf

 import (
@@ -134,6 +136,7 @@ type ShadowsocksServerTarget struct {
 	Email    string   `json:"email"`
 	Level    byte     `json:"level"`
 	IVCheck  bool     `json:"ivCheck"`
+	UoT      bool     `json:"uot"`
 }

 type ShadowsocksClientConfig struct {
@@ -163,6 +166,7 @@ func (v *ShadowsocksClientConfig) Build() (proto.Message, error) {
 			config.Port = uint32(server.Port)
 			config.Method = server.Cipher
 			config.Key = server.Password
+			config.UdpOverTcp = server.UoT
 			return config, nil
 		}
 	}
--- a/infra/conf/shadowsocks_legacy.go
+++ b/infra/conf/shadowsocks_legacy.go
@@ -0,0 +1,154 @@
+//go:build !go1.18
+
+package conf
+
+import (
+	"strings"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/xtls/xray-core/common/protocol"
+	"github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/proxy/shadowsocks"
+)
+
+func cipherFromString(c string) shadowsocks.CipherType {
+	switch strings.ToLower(c) {
+	case "aes-128-gcm", "aead_aes_128_gcm":
+		return shadowsocks.CipherType_AES_128_GCM
+	case "aes-256-gcm", "aead_aes_256_gcm":
+		return shadowsocks.CipherType_AES_256_GCM
+	case "chacha20-poly1305", "aead_chacha20_poly1305", "chacha20-ietf-poly1305":
+		return shadowsocks.CipherType_CHACHA20_POLY1305
+	case "xchacha20-poly1305", "aead_xchacha20_poly1305", "xchacha20-ietf-poly1305":
+		return shadowsocks.CipherType_XCHACHA20_POLY1305
+	case "none", "plain":
+		return shadowsocks.CipherType_NONE
+	default:
+		return shadowsocks.CipherType_UNKNOWN
+	}
+}
+
+type ShadowsocksUserConfig struct {
+	Cipher   string `json:"method"`
+	Password string `json:"password"`
+	Level    byte   `json:"level"`
+	Email    string `json:"email"`
+}
+
+type ShadowsocksServerConfig struct {
+	Cipher      string                   `json:"method"`
+	Password    string                   `json:"password"`
+	Level       byte                     `json:"level"`
+	Email       string                   `json:"email"`
+	Users       []*ShadowsocksUserConfig `json:"clients"`
+	NetworkList *NetworkList             `json:"network"`
+	IVCheck     bool                     `json:"ivCheck"`
+}
+
+func (v *ShadowsocksServerConfig) Build() (proto.Message, error) {
+	config := new(shadowsocks.ServerConfig)
+	config.Network = v.NetworkList.Build()
+
+	if v.Users != nil {
+		for _, user := range v.Users {
+			account := &shadowsocks.Account{
+				Password:   user.Password,
+				CipherType: cipherFromString(user.Cipher),
+				IvCheck:    v.IVCheck,
+			}
+			if account.Password == "" {
+				return nil, newError("Shadowsocks password is not specified.")
+			}
+			if account.CipherType < shadowsocks.CipherType_AES_128_GCM ||
+				account.CipherType > shadowsocks.CipherType_XCHACHA20_POLY1305 {
+				return nil, newError("unsupported cipher method: ", user.Cipher)
+			}
+			config.Users = append(config.Users, &protocol.User{
+				Email:   user.Email,
+				Level:   uint32(user.Level),
+				Account: serial.ToTypedMessage(account),
+			})
+		}
+	} else {
+		account := &shadowsocks.Account{
+			Password:   v.Password,
+			CipherType: cipherFromString(v.Cipher),
+			IvCheck:    v.IVCheck,
+		}
+		if account.Password == "" {
+			return nil, newError("Shadowsocks password is not specified.")
+		}
+		if account.CipherType == shadowsocks.CipherType_UNKNOWN {
+			return nil, newError("unknown cipher method: ", v.Cipher)
+		}
+		config.Users = append(config.Users, &protocol.User{
+			Email:   v.Email,
+			Level:   uint32(v.Level),
+			Account: serial.ToTypedMessage(account),
+		})
+	}
+
+	return config, nil
+}
+
+type ShadowsocksServerTarget struct {
+	Address  *Address `json:"address"`
+	Port     uint16   `json:"port"`
+	Cipher   string   `json:"method"`
+	Password string   `json:"password"`
+	Email    string   `json:"email"`
+	Level    byte     `json:"level"`
+	IVCheck  bool     `json:"ivCheck"`
+	UoT      bool     `json:"uot"`
+}
+
+type ShadowsocksClientConfig struct {
+	Servers []*ShadowsocksServerTarget `json:"servers"`
+}
+
+func (v *ShadowsocksClientConfig) Build() (proto.Message, error) {
+	if len(v.Servers) == 0 {
+		return nil, newError("0 Shadowsocks server configured.")
+	}
+
+	config := new(shadowsocks.ClientConfig)
+	serverSpecs := make([]*protocol.ServerEndpoint, len(v.Servers))
+	for idx, server := range v.Servers {
+		if server.Address == nil {
+			return nil, newError("Shadowsocks server address is not set.")
+		}
+		if server.Port == 0 {
+			return nil, newError("Invalid Shadowsocks port.")
+		}
+		if server.Password == "" {
+			return nil, newError("Shadowsocks password is not specified.")
+		}
+		account := &shadowsocks.Account{
+			Password: server.Password,
+		}
+		account.CipherType = cipherFromString(server.Cipher)
+		if account.CipherType == shadowsocks.CipherType_UNKNOWN {
+			return nil, newError("unknown cipher method: ", server.Cipher)
+		}
+
+		account.IvCheck = server.IVCheck
+
+		ss := &protocol.ServerEndpoint{
+			Address: server.Address.Build(),
+			Port:    uint32(server.Port),
+			User: []*protocol.User{
+				{
+					Level:   uint32(server.Level),
+					Email:   server.Email,
+					Account: serial.ToTypedMessage(account),
+				},
+			},
+		}
+
+		serverSpecs[idx] = ss
+	}
+
+	config.Server = serverSpecs
+
+	return config, nil
+}
--- a/proxy/shadowsocks_2022/config.pb.go
+++ b/proxy/shadowsocks_2022/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.0
-// 	protoc        v3.20.1
+// 	protoc        v3.21.1
 // source: proxy/shadowsocks_2022/config.proto

 package shadowsocks_2022
@@ -171,6 +171,156 @@ func (x *MultiUserServerConfig) GetNetwork() []net.Network {
 	return nil
 }

+type RelayDestination struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Key     string          `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
+	Address *net.IPOrDomain `protobuf:"bytes,2,opt,name=address,proto3" json:"address,omitempty"`
+	Port    uint32          `protobuf:"varint,3,opt,name=port,proto3" json:"port,omitempty"`
+	Email   string          `protobuf:"bytes,4,opt,name=email,proto3" json:"email,omitempty"`
+	Level   int32           `protobuf:"varint,5,opt,name=level,proto3" json:"level,omitempty"`
+}
+
+func (x *RelayDestination) Reset() {
+	*x = RelayDestination{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RelayDestination) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RelayDestination) ProtoMessage() {}
+
+func (x *RelayDestination) ProtoReflect() protoreflect.Message {
+	mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[2]
+	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 RelayDestination.ProtoReflect.Descriptor instead.
+func (*RelayDestination) Descriptor() ([]byte, []int) {
+	return file_proxy_shadowsocks_2022_config_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *RelayDestination) GetKey() string {
+	if x != nil {
+		return x.Key
+	}
+	return ""
+}
+
+func (x *RelayDestination) GetAddress() *net.IPOrDomain {
+	if x != nil {
+		return x.Address
+	}
+	return nil
+}
+
+func (x *RelayDestination) GetPort() uint32 {
+	if x != nil {
+		return x.Port
+	}
+	return 0
+}
+
+func (x *RelayDestination) GetEmail() string {
+	if x != nil {
+		return x.Email
+	}
+	return ""
+}
+
+func (x *RelayDestination) GetLevel() int32 {
+	if x != nil {
+		return x.Level
+	}
+	return 0
+}
+
+type RelayServerConfig struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Method       string              `protobuf:"bytes,1,opt,name=method,proto3" json:"method,omitempty"`
+	Key          string              `protobuf:"bytes,2,opt,name=key,proto3" json:"key,omitempty"`
+	Destinations []*RelayDestination `protobuf:"bytes,3,rep,name=destinations,proto3" json:"destinations,omitempty"`
+	Network      []net.Network       `protobuf:"varint,4,rep,packed,name=network,proto3,enum=xray.common.net.Network" json:"network,omitempty"`
+}
+
+func (x *RelayServerConfig) Reset() {
+	*x = RelayServerConfig{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RelayServerConfig) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RelayServerConfig) ProtoMessage() {}
+
+func (x *RelayServerConfig) ProtoReflect() protoreflect.Message {
+	mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[3]
+	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 RelayServerConfig.ProtoReflect.Descriptor instead.
+func (*RelayServerConfig) Descriptor() ([]byte, []int) {
+	return file_proxy_shadowsocks_2022_config_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *RelayServerConfig) GetMethod() string {
+	if x != nil {
+		return x.Method
+	}
+	return ""
+}
+
+func (x *RelayServerConfig) GetKey() string {
+	if x != nil {
+		return x.Key
+	}
+	return ""
+}
+
+func (x *RelayServerConfig) GetDestinations() []*RelayDestination {
+	if x != nil {
+		return x.Destinations
+	}
+	return nil
+}
+
+func (x *RelayServerConfig) GetNetwork() []net.Network {
+	if x != nil {
+		return x.Network
+	}
+	return nil
+}
+
 type User struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -184,7 +334,7 @@ type User struct {
 func (x *User) Reset() {
 	*x = User{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[2]
+		mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -197,7 +347,7 @@ func (x *User) String() string {
 func (*User) ProtoMessage() {}

 func (x *User) ProtoReflect() protoreflect.Message {
-	mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[2]
+	mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -210,7 +360,7 @@ func (x *User) ProtoReflect() protoreflect.Message {

 // Deprecated: Use User.ProtoReflect.Descriptor instead.
 func (*User) Descriptor() ([]byte, []int) {
-	return file_proxy_shadowsocks_2022_config_proto_rawDescGZIP(), []int{2}
+	return file_proxy_shadowsocks_2022_config_proto_rawDescGZIP(), []int{4}
 }

 func (x *User) GetKey() string {
@@ -239,16 +389,17 @@ type ClientConfig struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields

-	Address *net.IPOrDomain `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
-	Port    uint32          `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
-	Method  string          `protobuf:"bytes,3,opt,name=method,proto3" json:"method,omitempty"`
-	Key     string          `protobuf:"bytes,4,opt,name=key,proto3" json:"key,omitempty"`
+	Address    *net.IPOrDomain `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+	Port       uint32          `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
+	Method     string          `protobuf:"bytes,3,opt,name=method,proto3" json:"method,omitempty"`
+	Key        string          `protobuf:"bytes,4,opt,name=key,proto3" json:"key,omitempty"`
+	UdpOverTcp bool            `protobuf:"varint,5,opt,name=udp_over_tcp,json=udpOverTcp,proto3" json:"udp_over_tcp,omitempty"`
 }

 func (x *ClientConfig) Reset() {
 	*x = ClientConfig{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[3]
+		mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -261,7 +412,7 @@ func (x *ClientConfig) String() string {
 func (*ClientConfig) ProtoMessage() {}

 func (x *ClientConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[3]
+	mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -274,7 +425,7 @@ func (x *ClientConfig) ProtoReflect() protoreflect.Message {

 // Deprecated: Use ClientConfig.ProtoReflect.Descriptor instead.
 func (*ClientConfig) Descriptor() ([]byte, []int) {
-	return file_proxy_shadowsocks_2022_config_proto_rawDescGZIP(), []int{3}
+	return file_proxy_shadowsocks_2022_config_proto_rawDescGZIP(), []int{5}
 }

 func (x *ClientConfig) GetAddress() *net.IPOrDomain {
@@ -305,6 +456,13 @@ func (x *ClientConfig) GetKey() string {
 	return ""
 }

+func (x *ClientConfig) GetUdpOverTcp() bool {
+	if x != nil {
+		return x.UdpOverTcp
+	}
+	return false
+}
+
 var File_proxy_shadowsocks_2022_config_proto protoreflect.FileDescriptor

 var file_proxy_shadowsocks_2022_config_proto_rawDesc = []byte{
@@ -336,27 +494,52 @@ var file_proxy_shadowsocks_2022_config_proto_rawDesc = []byte{
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+	0x33,
 }

 var (
@@ -371,25 +554,30 @@ func file_proxy_shadowsocks_2022_config_proto_rawDescGZIP() []byte {
 	return file_proxy_shadowsocks_2022_config_proto_rawDescData
 }

-var file_proxy_shadowsocks_2022_config_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_proxy_shadowsocks_2022_config_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
 var file_proxy_shadowsocks_2022_config_proto_goTypes = []interface{}{
 	(*ServerConfig)(nil),          // 0: xray.proxy.shadowsocks_2022.ServerConfig
 	(*MultiUserServerConfig)(nil), // 1: xray.proxy.shadowsocks_2022.MultiUserServerConfig
-	(*User)(nil),                  // 2: xray.proxy.shadowsocks_2022.User
-	(*ClientConfig)(nil),          // 3: xray.proxy.shadowsocks_2022.ClientConfig
-	(net.Network)(0),              // 4: xray.common.net.Network
-	(*net.IPOrDomain)(nil),        // 5: xray.common.net.IPOrDomain
+	(*RelayDestination)(nil),      // 2: xray.proxy.shadowsocks_2022.RelayDestination
+	(*RelayServerConfig)(nil),     // 3: xray.proxy.shadowsocks_2022.RelayServerConfig
+	(*User)(nil),                  // 4: xray.proxy.shadowsocks_2022.User
+	(*ClientConfig)(nil),          // 5: xray.proxy.shadowsocks_2022.ClientConfig
+	(net.Network)(0),              // 6: xray.common.net.Network
+	(*net.IPOrDomain)(nil),        // 7: xray.common.net.IPOrDomain
 }
 var file_proxy_shadowsocks_2022_config_proto_depIdxs = []int32{
-	4, // 0: xray.proxy.shadowsocks_2022.ServerConfig.network:type_name -> xray.common.net.Network
-	2, // 1: xray.proxy.shadowsocks_2022.MultiUserServerConfig.users:type_name -> xray.proxy.shadowsocks_2022.User
-	4, // 2: xray.proxy.shadowsocks_2022.MultiUserServerConfig.network:type_name -> xray.common.net.Network
-	5, // 3: xray.proxy.shadowsocks_2022.ClientConfig.address:type_name -> xray.common.net.IPOrDomain
-	4, // [4:4] is the sub-list for method output_type
-	4, // [4:4] is the sub-list for method input_type
-	4, // [4:4] is the sub-list for extension type_name
-	4, // [4:4] is the sub-list for extension extendee
-	0, // [0:4] is the sub-list for field type_name
+	6, // 0: xray.proxy.shadowsocks_2022.ServerConfig.network:type_name -> xray.common.net.Network
+	4, // 1: xray.proxy.shadowsocks_2022.MultiUserServerConfig.users:type_name -> xray.proxy.shadowsocks_2022.User
+	6, // 2: xray.proxy.shadowsocks_2022.MultiUserServerConfig.network:type_name -> xray.common.net.Network
+	7, // 3: xray.proxy.shadowsocks_2022.RelayDestination.address:type_name -> xray.common.net.IPOrDomain
+	2, // 4: xray.proxy.shadowsocks_2022.RelayServerConfig.destinations:type_name -> xray.proxy.shadowsocks_2022.RelayDestination
+	6, // 5: xray.proxy.shadowsocks_2022.RelayServerConfig.network:type_name -> xray.common.net.Network
+	7, // 6: xray.proxy.shadowsocks_2022.ClientConfig.address:type_name -> xray.common.net.IPOrDomain
+	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
 }

 func init() { file_proxy_shadowsocks_2022_config_proto_init() }
@@ -423,7 +611,7 @@ func file_proxy_shadowsocks_2022_config_proto_init() {
 			}
 		}
 		file_proxy_shadowsocks_2022_config_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*User); i {
+			switch v := v.(*RelayDestination); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -435,6 +623,30 @@ func file_proxy_shadowsocks_2022_config_proto_init() {
 			}
 		}
 		file_proxy_shadowsocks_2022_config_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RelayServerConfig); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proxy_shadowsocks_2022_config_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*User); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proxy_shadowsocks_2022_config_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ClientConfig); i {
 			case 0:
 				return &v.state
@@ -453,7 +665,7 @@ func file_proxy_shadowsocks_2022_config_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proxy_shadowsocks_2022_config_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   4,
+			NumMessages:   6,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
--- a/proxy/shadowsocks_2022/config.proto
+++ b/proxy/shadowsocks_2022/config.proto
@@ -24,6 +24,21 @@ message MultiUserServerConfig {
  repeated xray.common.net.Network network = 4;
 }

+message RelayDestination {
+  string key = 1;
+  xray.common.net.IPOrDomain address = 2;
+  uint32 port = 3;
+  string email = 4;
+  int32 level = 5;
+}
+
+message RelayServerConfig {
+  string method = 1;
+  string key = 2;
+  repeated RelayDestination destinations = 3;
+  repeated xray.common.net.Network network = 4;
+}
+
 message User {
  string key = 1;
  string email = 2;
@@ -35,4 +50,5 @@ message ClientConfig {
  uint32 port = 2;
  string method = 3;
  string key = 4;
+  bool udp_over_tcp = 5;
 }
--- a/proxy/shadowsocks_2022/inbound.go
+++ b/proxy/shadowsocks_2022/inbound.go
@@ -1,3 +1,5 @@
+//go:build go1.18
+
 package shadowsocks_2022

 import (
@@ -8,6 +10,7 @@ import (
 	C "github.com/sagernet/sing/common"
 	B "github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/xtls/xray-core/common"
@@ -72,20 +75,23 @@ func (i *Inbound) Process(ctx context.Context, network net.Network, connection s
 	ctx = session.ContextWithDispatcher(ctx, dispatcher)

 	if network == net.Network_TCP {
-		return i.service.NewConnection(ctx, connection, metadata)
+		return returnError(i.service.NewConnection(ctx, connection, metadata))
 	} else {
 		reader := buf.NewReader(connection)
 		pc := &natPacketConn{connection}
 		for {
 			mb, err := reader.ReadMultiBuffer()
 			if err != nil {
-				return err
+				buf.ReleaseMulti(mb)
+				return returnError(err)
 			}
 			for _, buffer := range mb {
-				err = i.service.NewPacket(ctx, pc, B.As(buffer.Bytes()), metadata)
+				err = i.service.NewPacket(ctx, pc, B.As(buffer.Bytes()).ToOwned(), metadata)
 				if err != nil {
+					buf.ReleaseMulti(mb)
 					return err
 				}
+				buffer.Release()
 			}
 		}
 	}
@@ -145,6 +151,9 @@ func (i *Inbound) NewPacketConnection(ctx context.Context, conn N.PacketConn, me
 }

 func (i *Inbound) HandleError(err error) {
+	if E.IsClosed(err) {
+		return
+	}
 	newError(err).AtWarning().WriteToLog()
 }

--- a/proxy/shadowsocks_2022/inbound_multi.go
+++ b/proxy/shadowsocks_2022/inbound_multi.go
@@ -1,13 +1,18 @@
+//go:build go1.18
+
 package shadowsocks_2022

 import (
 	"context"
 	"encoding/base64"
+	"strconv"

 	"github.com/sagernet/sing-shadowsocks"
 	"github.com/sagernet/sing-shadowsocks/shadowaead_2022"
+	C "github.com/sagernet/sing/common"
 	B "github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/xtls/xray-core/common"
@@ -60,17 +65,16 @@ func NewMultiServer(ctx context.Context, config *MultiUserServerConfig) (*MultiU
 	for i, user := range config.Users {
 		if user.Email == "" {
 			u := uuid.New()
-			user.Email = "(user with empty email - " + u.String() + ")"
-		}
-		uPSK, err := base64.StdEncoding.DecodeString(user.Key)
-		if err != nil {
-			return nil, newError("parse user key for ", user.Email).Base(err)
-		}
-		err = service.AddUser(i, uPSK)
-		if err != nil {
-			return nil, newError("add user").Base(err)
+			user.Email = "unnamed-user-" + strconv.Itoa(i) + "-" + u.String()
 		}
 	}
+	err = service.UpdateUsersWithPasswords(
+		C.MapIndexed(config.Users, func(index int, it *User) int { return index }),
+		C.Map(config.Users, func(it *User) string { return it.Key }),
+	)
+	if err != nil {
+		return nil, newError("create service").Base(err)
+	}

 	inbound.service = service
 	return inbound, nil
@@ -91,20 +95,23 @@ func (i *MultiUserInbound) Process(ctx context.Context, network net.Network, con
 	ctx = session.ContextWithDispatcher(ctx, dispatcher)

 	if network == net.Network_TCP {
-		return i.service.NewConnection(ctx, connection, metadata)
+		return returnError(i.service.NewConnection(ctx, connection, metadata))
 	} else {
 		reader := buf.NewReader(connection)
 		pc := &natPacketConn{connection}
 		for {
 			mb, err := reader.ReadMultiBuffer()
 			if err != nil {
-				return err
+				buf.ReleaseMulti(mb)
+				return returnError(err)
 			}
 			for _, buffer := range mb {
-				err = i.service.NewPacket(ctx, pc, B.As(buffer.Bytes()), metadata)
+				err = i.service.NewPacket(ctx, pc, B.As(buffer.Bytes()).ToOwned(), metadata)
 				if err != nil {
+					buf.ReleaseMulti(mb)
 					return err
 				}
+				buffer.Release()
 			}
 		}
 	}
@@ -168,5 +175,8 @@ func (i *MultiUserInbound) NewPacketConnection(ctx context.Context, conn N.Packe
 }

 func (i *MultiUserInbound) HandleError(err error) {
+	if E.IsClosed(err) {
+		return
+	}
 	newError(err).AtWarning().WriteToLog()
 }
--- a/proxy/shadowsocks_2022/inbound_relay.go
+++ b/proxy/shadowsocks_2022/inbound_relay.go
@@ -0,0 +1,181 @@
+package shadowsocks_2022
+
+import (
+	"context"
+	"strconv"
+	"strings"
+
+	"github.com/sagernet/sing-shadowsocks"
+	"github.com/sagernet/sing-shadowsocks/shadowaead_2022"
+	C "github.com/sagernet/sing/common"
+	B "github.com/sagernet/sing/common/buf"
+	"github.com/sagernet/sing/common/bufio"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/log"
+	"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/uuid"
+	"github.com/xtls/xray-core/features/routing"
+	"github.com/xtls/xray-core/transport/internet/stat"
+)
+
+func init() {
+	common.Must(common.RegisterConfig((*RelayServerConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
+		return NewRelayServer(ctx, config.(*RelayServerConfig))
+	}))
+}
+
+type RelayInbound struct {
+	networks     []net.Network
+	destinations []*RelayDestination
+	service      *shadowaead_2022.RelayService[int]
+}
+
+func NewRelayServer(ctx context.Context, config *RelayServerConfig) (*RelayInbound, error) {
+	networks := config.Network
+	if len(networks) == 0 {
+		networks = []net.Network{
+			net.Network_TCP,
+			net.Network_UDP,
+		}
+	}
+	inbound := &RelayInbound{
+		networks:     networks,
+		destinations: config.Destinations,
+	}
+	if !C.Contains(shadowaead_2022.List, config.Method) || !strings.Contains(config.Method, "aes") {
+		return nil, newError("unsupported method ", config.Method)
+	}
+	service, err := shadowaead_2022.NewRelayServiceWithPassword[int](config.Method, config.Key, 500, inbound)
+	if err != nil {
+		return nil, newError("create service").Base(err)
+	}
+
+	for i, destination := range config.Destinations {
+		if destination.Email == "" {
+			u := uuid.New()
+			destination.Email = "unnamed-destination-" + strconv.Itoa(i) + "-" + u.String()
+		}
+	}
+	err = service.UpdateUsersWithPasswords(
+		C.MapIndexed(config.Destinations, func(index int, it *RelayDestination) int { return index }),
+		C.Map(config.Destinations, func(it *RelayDestination) string { return it.Key }),
+		C.Map(config.Destinations, func(it *RelayDestination) M.Socksaddr {
+			return toSocksaddr(net.Destination{
+				Address: it.Address.AsAddress(),
+				Port:    net.Port(it.Port),
+			})
+		}),
+	)
+	if err != nil {
+		return nil, newError("create service").Base(err)
+	}
+	inbound.service = service
+	return inbound, nil
+}
+
+func (i *RelayInbound) Network() []net.Network {
+	return i.networks
+}
+
+func (i *RelayInbound) Process(ctx context.Context, network net.Network, connection stat.Connection, dispatcher routing.Dispatcher) error {
+	inbound := session.InboundFromContext(ctx)
+
+	var metadata M.Metadata
+	if inbound.Source.IsValid() {
+		metadata.Source = M.ParseSocksaddr(inbound.Source.NetAddr())
+	}
+
+	ctx = session.ContextWithDispatcher(ctx, dispatcher)
+
+	if network == net.Network_TCP {
+		return returnError(i.service.NewConnection(ctx, connection, metadata))
+	} else {
+		reader := buf.NewReader(connection)
+		pc := &natPacketConn{connection}
+		for {
+			mb, err := reader.ReadMultiBuffer()
+			if err != nil {
+				buf.ReleaseMulti(mb)
+				return returnError(err)
+			}
+			for _, buffer := range mb {
+				err = i.service.NewPacket(ctx, pc, B.As(buffer.Bytes()).ToOwned(), metadata)
+				if err != nil {
+					buf.ReleaseMulti(mb)
+					return err
+				}
+				buffer.Release()
+			}
+		}
+	}
+}
+
+func (i *RelayInbound) NewConnection(ctx context.Context, conn net.Conn, metadata M.Metadata) error {
+	userCtx := ctx.(*shadowsocks.UserContext[int])
+	inbound := session.InboundFromContext(ctx)
+	user := i.destinations[userCtx.User]
+	inbound.User = &protocol.MemoryUser{
+		Email: user.Email,
+		Level: uint32(user.Level),
+	}
+	ctx = log.ContextWithAccessMessage(userCtx.Context, &log.AccessMessage{
+		From:   metadata.Source,
+		To:     metadata.Destination,
+		Status: log.AccessAccepted,
+		Email:  user.Email,
+	})
+	newError("tunnelling request to tcp:", metadata.Destination).WriteToLog(session.ExportIDToError(ctx))
+	dispatcher := session.DispatcherFromContext(ctx)
+	link, err := dispatcher.Dispatch(ctx, toDestination(metadata.Destination, net.Network_TCP))
+	if err != nil {
+		return err
+	}
+	outConn := &pipeConnWrapper{
+		&buf.BufferedReader{Reader: link.Reader},
+		link.Writer,
+		conn,
+	}
+	return bufio.CopyConn(ctx, conn, outConn)
+}
+
+func (i *RelayInbound) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata M.Metadata) error {
+	userCtx := ctx.(*shadowsocks.UserContext[int])
+	inbound := session.InboundFromContext(ctx)
+	user := i.destinations[userCtx.User]
+	inbound.User = &protocol.MemoryUser{
+		Email: user.Email,
+		Level: uint32(user.Level),
+	}
+	ctx = log.ContextWithAccessMessage(userCtx.Context, &log.AccessMessage{
+		From:   metadata.Source,
+		To:     metadata.Destination,
+		Status: log.AccessAccepted,
+		Email:  user.Email,
+	})
+	newError("tunnelling request to udp:", metadata.Destination).WriteToLog(session.ExportIDToError(ctx))
+	dispatcher := session.DispatcherFromContext(ctx)
+	destination := toDestination(metadata.Destination, net.Network_UDP)
+	link, err := dispatcher.Dispatch(ctx, destination)
+	if err != nil {
+		return err
+	}
+	outConn := &packetConnWrapper{
+		Reader: link.Reader,
+		Writer: link.Writer,
+		Dest:   destination,
+	}
+	return bufio.CopyPacketConn(ctx, conn, outConn)
+}
+
+func (i *RelayInbound) HandleError(err error) {
+	if E.IsClosed(err) {
+		return
+	}
+	newError(err).AtWarning().WriteToLog()
+}
--- a/proxy/shadowsocks_2022/outbound.go
+++ b/proxy/shadowsocks_2022/outbound.go
@@ -1,3 +1,5 @@
+//go:build go1.18
+
 package shadowsocks_2022

 import (
@@ -11,7 +13,9 @@ import (
 	C "github.com/sagernet/sing/common"
 	B "github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
+	"github.com/sagernet/sing/common/uot"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/net"
@@ -30,6 +34,7 @@ type Outbound struct {
 	ctx    context.Context
 	server net.Destination
 	method shadowsocks.Method
+	uot    bool
 }

 func NewClient(ctx context.Context, config *ClientConfig) (*Outbound, error) {
@@ -40,6 +45,7 @@ func NewClient(ctx context.Context, config *ClientConfig) (*Outbound, error) {
 			Port:    net.Port(config.Port),
 			Network: net.Network_TCP,
 		},
+		uot: config.UdpOverTcp,
 	}
 	if C.Contains(shadowaead_2022.List, config.Method) {
 		if config.Key == "" {
@@ -67,16 +73,17 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
 	if outbound == nil || !outbound.Target.IsValid() {
 		return newError("target not specified")
 	}
-	/*if statConn, ok := inboundConn.(*internet.StatCounterConn); ok {
-		inboundConn = statConn.Connection
-	}*/
 	destination := outbound.Target
 	network := destination.Network

 	newError("tunneling request to ", destination, " via ", o.server.NetAddr()).WriteToLog(session.ExportIDToError(ctx))

 	serverDestination := o.server
-	serverDestination.Network = network
+	if o.uot {
+		serverDestination.Network = net.Network_TCP
+	} else {
+		serverDestination.Network = network
+	}
 	connection, err := dialer.Dial(ctx, serverDestination)
 	if err != nil {
 		return newError("failed to connect to server").Base(err)
@@ -92,6 +99,7 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
 			}
 			_payload := B.StackNew()
 			payload := C.Dup(_payload)
+			defer payload.Release()
 			for {
 				payload.FullReset()
 				nb, n := buf.SplitBytes(mb, payload.FreeBytes())
@@ -127,13 +135,13 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
 			conn.R = &buf.BufferedReader{Reader: link.Reader}
 		}

-		return bufio.CopyConn(ctx, conn, serverConn)
+		return returnError(bufio.CopyConn(ctx, conn, serverConn))
 	} else {
 		var packetConn N.PacketConn
 		if pc, isPacketConn := inboundConn.(N.PacketConn); isPacketConn {
 			packetConn = pc
 		} else if nc, isNetPacket := inboundConn.(net.PacketConn); isNetPacket {
-			packetConn = &bufio.PacketConnWrapper{PacketConn: nc}
+			packetConn = bufio.NewPacketConn(nc)
 		} else {
 			packetConn = &packetConnWrapper{
 				Reader: link.Reader,
@@ -143,7 +151,12 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
 			}
 		}

-		serverConn := o.method.DialPacketConn(connection)
-		return bufio.CopyPacketConn(ctx, packetConn, serverConn)
+		if o.uot {
+			serverConn := o.method.DialEarlyConn(connection, M.Socksaddr{Fqdn: uot.UOTMagicAddress})
+			return returnError(bufio.CopyPacketConn(ctx, packetConn, uot.NewClientConn(serverConn)))
+		} else {
+			serverConn := o.method.DialPacketConn(connection)
+			return returnError(bufio.CopyPacketConn(ctx, packetConn, serverConn))
+		}
 	}
 }
--- a/proxy/shadowsocks_2022/shadowsocks_2022.go
+++ b/proxy/shadowsocks_2022/shadowsocks_2022.go
@@ -1,11 +1,13 @@
+//go:build go1.18
+
 package shadowsocks_2022

 import (
 	"io"

 	B "github.com/sagernet/sing/common/buf"
+	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
-	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/net"
 )
@@ -47,9 +49,6 @@ type pipeConnWrapper struct {
 }

 func (w *pipeConnWrapper) Close() error {
-	common.Interrupt(w.R)
-	common.Interrupt(w.W)
-	common.Close(w.Conn)
 	return nil
 }

@@ -136,8 +135,13 @@ func (w *packetConnWrapper) WritePacket(buffer *B.Buffer, destination M.Socksadd
 }

 func (w *packetConnWrapper) Close() error {
-	common.Interrupt(w.Reader)
-	common.Close(w.Conn)
 	buf.ReleaseMulti(w.cached)
 	return nil
 }
+
+func returnError(err error) error {
+	if E.IsClosed(err) {
+		return nil
+	}
+	return err
+}
--- a/proxy/vmess/encoding/client.go
+++ b/proxy/vmess/encoding/client.go
@@ -136,31 +136,35 @@ func (c *ClientSession) EncodeRequestHeader(header *protocol.RequestHeader, writ
 	return nil
 }

-func (c *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, writer io.Writer) buf.Writer {
+func (c *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, writer io.Writer) (buf.Writer, error) {
 	var sizeParser crypto.ChunkSizeEncoder = crypto.PlainChunkSizeParser{}
 	if request.Option.Has(protocol.RequestOptionChunkMasking) {
 		sizeParser = NewShakeSizeParser(c.requestBodyIV[:])
 	}
 	var padding crypto.PaddingLengthGenerator
 	if request.Option.Has(protocol.RequestOptionGlobalPadding) {
-		padding = sizeParser.(crypto.PaddingLengthGenerator)
+		var ok bool
+		padding, ok = sizeParser.(crypto.PaddingLengthGenerator)
+		if !ok {
+			return nil, newError("invalid option: RequestOptionGlobalPadding")
+		}
 	}

 	switch request.Security {
 	case protocol.SecurityType_NONE:
 		if request.Option.Has(protocol.RequestOptionChunkStream) {
 			if request.Command.TransferType() == protocol.TransferTypeStream {
-				return crypto.NewChunkStreamWriter(sizeParser, writer)
+				return crypto.NewChunkStreamWriter(sizeParser, writer), nil
 			}
 			auth := &crypto.AEADAuthenticator{
 				AEAD:                    new(NoOpAuthenticator),
 				NonceGenerator:          crypto.GenerateEmptyBytes(),
 				AdditionalDataGenerator: crypto.GenerateEmptyBytes(),
 			}
-			return crypto.NewAuthenticationWriter(auth, sizeParser, writer, protocol.TransferTypePacket, padding)
+			return crypto.NewAuthenticationWriter(auth, sizeParser, writer, protocol.TransferTypePacket, padding), nil
 		}

-		return buf.NewWriter(writer)
+		return buf.NewWriter(writer), nil
 	case protocol.SecurityType_LEGACY:
 		aesStream := crypto.NewAesEncryptionStream(c.requestBodyKey[:], c.requestBodyIV[:])
 		cryptionWriter := crypto.NewCryptionWriter(aesStream, writer)
@@ -170,10 +174,10 @@ func (c *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, write
 				NonceGenerator:          crypto.GenerateEmptyBytes(),
 				AdditionalDataGenerator: crypto.GenerateEmptyBytes(),
 			}
-			return crypto.NewAuthenticationWriter(auth, sizeParser, cryptionWriter, request.Command.TransferType(), padding)
+			return crypto.NewAuthenticationWriter(auth, sizeParser, cryptionWriter, request.Command.TransferType(), padding), nil
 		}

-		return &buf.SequentialWriter{Writer: cryptionWriter}
+		return &buf.SequentialWriter{Writer: cryptionWriter}, nil
 	case protocol.SecurityType_AES128_GCM:
 		aead := crypto.NewAesGcm(c.requestBodyKey[:])
 		auth := &crypto.AEADAuthenticator{
@@ -192,7 +196,7 @@ func (c *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, write
 			}
 			sizeParser = NewAEADSizeParser(lengthAuth)
 		}
-		return crypto.NewAuthenticationWriter(auth, sizeParser, writer, request.Command.TransferType(), padding)
+		return crypto.NewAuthenticationWriter(auth, sizeParser, writer, request.Command.TransferType(), padding), nil
 	case protocol.SecurityType_CHACHA20_POLY1305:
 		aead, err := chacha20poly1305.New(GenerateChacha20Poly1305Key(c.requestBodyKey[:]))
 		common.Must(err)
@@ -214,9 +218,9 @@ func (c *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, write
 			}
 			sizeParser = NewAEADSizeParser(lengthAuth)
 		}
-		return crypto.NewAuthenticationWriter(auth, sizeParser, writer, request.Command.TransferType(), padding)
+		return crypto.NewAuthenticationWriter(auth, sizeParser, writer, request.Command.TransferType(), padding), nil
 	default:
-		panic("Unknown security type.")
+		return nil, newError("invalid option: Security")
 	}
 }

@@ -305,21 +309,25 @@ func (c *ClientSession) DecodeResponseHeader(reader io.Reader) (*protocol.Respon
 	return header, nil
 }

-func (c *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, reader io.Reader) buf.Reader {
+func (c *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, reader io.Reader) (buf.Reader, error) {
 	var sizeParser crypto.ChunkSizeDecoder = crypto.PlainChunkSizeParser{}
 	if request.Option.Has(protocol.RequestOptionChunkMasking) {
 		sizeParser = NewShakeSizeParser(c.responseBodyIV[:])
 	}
 	var padding crypto.PaddingLengthGenerator
 	if request.Option.Has(protocol.RequestOptionGlobalPadding) {
-		padding = sizeParser.(crypto.PaddingLengthGenerator)
+		var ok bool
+		padding, ok = sizeParser.(crypto.PaddingLengthGenerator)
+		if !ok {
+			return nil, newError("invalid option: RequestOptionGlobalPadding")
+		}
 	}

 	switch request.Security {
 	case protocol.SecurityType_NONE:
 		if request.Option.Has(protocol.RequestOptionChunkStream) {
 			if request.Command.TransferType() == protocol.TransferTypeStream {
-				return crypto.NewChunkStreamReader(sizeParser, reader)
+				return crypto.NewChunkStreamReader(sizeParser, reader), nil
 			}

 			auth := &crypto.AEADAuthenticator{
@@ -328,10 +336,10 @@ func (c *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, read
 				AdditionalDataGenerator: crypto.GenerateEmptyBytes(),
 			}

-			return crypto.NewAuthenticationReader(auth, sizeParser, reader, protocol.TransferTypePacket, padding)
+			return crypto.NewAuthenticationReader(auth, sizeParser, reader, protocol.TransferTypePacket, padding), nil
 		}

-		return buf.NewReader(reader)
+		return buf.NewReader(reader), nil
 	case protocol.SecurityType_LEGACY:
 		if request.Option.Has(protocol.RequestOptionChunkStream) {
 			auth := &crypto.AEADAuthenticator{
@@ -339,10 +347,10 @@ func (c *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, read
 				NonceGenerator:          crypto.GenerateEmptyBytes(),
 				AdditionalDataGenerator: crypto.GenerateEmptyBytes(),
 			}
-			return crypto.NewAuthenticationReader(auth, sizeParser, c.responseReader, request.Command.TransferType(), padding)
+			return crypto.NewAuthenticationReader(auth, sizeParser, c.responseReader, request.Command.TransferType(), padding), nil
 		}

-		return buf.NewReader(c.responseReader)
+		return buf.NewReader(c.responseReader), nil
 	case protocol.SecurityType_AES128_GCM:
 		aead := crypto.NewAesGcm(c.responseBodyKey[:])

@@ -362,7 +370,7 @@ func (c *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, read
 			}
 			sizeParser = NewAEADSizeParser(lengthAuth)
 		}
-		return crypto.NewAuthenticationReader(auth, sizeParser, reader, request.Command.TransferType(), padding)
+		return crypto.NewAuthenticationReader(auth, sizeParser, reader, request.Command.TransferType(), padding), nil
 	case protocol.SecurityType_CHACHA20_POLY1305:
 		aead, _ := chacha20poly1305.New(GenerateChacha20Poly1305Key(c.responseBodyKey[:]))

@@ -383,9 +391,9 @@ func (c *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, read
 			}
 			sizeParser = NewAEADSizeParser(lengthAuth)
 		}
-		return crypto.NewAuthenticationReader(auth, sizeParser, reader, request.Command.TransferType(), padding)
+		return crypto.NewAuthenticationReader(auth, sizeParser, reader, request.Command.TransferType(), padding), nil
 	default:
-		panic("Unknown security type.")
+		return nil, newError("invalid option: Security")
 	}
 }

--- a/proxy/vmess/encoding/server.go
+++ b/proxy/vmess/encoding/server.go
@@ -310,21 +310,25 @@ func (s *ServerSession) DecodeRequestHeader(reader io.Reader, isDrain bool) (*pr
 }

 // DecodeRequestBody returns Reader from which caller can fetch decrypted body.
-func (s *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reader io.Reader) buf.Reader {
+func (s *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reader io.Reader) (buf.Reader, error) {
 	var sizeParser crypto.ChunkSizeDecoder = crypto.PlainChunkSizeParser{}
 	if request.Option.Has(protocol.RequestOptionChunkMasking) {
 		sizeParser = NewShakeSizeParser(s.requestBodyIV[:])
 	}
 	var padding crypto.PaddingLengthGenerator
 	if request.Option.Has(protocol.RequestOptionGlobalPadding) {
-		padding = sizeParser.(crypto.PaddingLengthGenerator)
+		var ok bool
+		padding, ok = sizeParser.(crypto.PaddingLengthGenerator)
+		if !ok {
+			return nil, newError("invalid option: RequestOptionGlobalPadding")
+		}
 	}

 	switch request.Security {
 	case protocol.SecurityType_NONE:
 		if request.Option.Has(protocol.RequestOptionChunkStream) {
 			if request.Command.TransferType() == protocol.TransferTypeStream {
-				return crypto.NewChunkStreamReader(sizeParser, reader)
+				return crypto.NewChunkStreamReader(sizeParser, reader), nil
 			}

 			auth := &crypto.AEADAuthenticator{
@@ -332,9 +336,9 @@ func (s *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reade
 				NonceGenerator:          crypto.GenerateEmptyBytes(),
 				AdditionalDataGenerator: crypto.GenerateEmptyBytes(),
 			}
-			return crypto.NewAuthenticationReader(auth, sizeParser, reader, protocol.TransferTypePacket, padding)
+			return crypto.NewAuthenticationReader(auth, sizeParser, reader, protocol.TransferTypePacket, padding), nil
 		}
-		return buf.NewReader(reader)
+		return buf.NewReader(reader), nil

 	case protocol.SecurityType_LEGACY:
 		aesStream := crypto.NewAesDecryptionStream(s.requestBodyKey[:], s.requestBodyIV[:])
@@ -345,9 +349,9 @@ func (s *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reade
 				NonceGenerator:          crypto.GenerateEmptyBytes(),
 				AdditionalDataGenerator: crypto.GenerateEmptyBytes(),
 			}
-			return crypto.NewAuthenticationReader(auth, sizeParser, cryptionReader, request.Command.TransferType(), padding)
+			return crypto.NewAuthenticationReader(auth, sizeParser, cryptionReader, request.Command.TransferType(), padding), nil
 		}
-		return buf.NewReader(cryptionReader)
+		return buf.NewReader(cryptionReader), nil

 	case protocol.SecurityType_AES128_GCM:
 		aead := crypto.NewAesGcm(s.requestBodyKey[:])
@@ -367,7 +371,7 @@ func (s *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reade
 			}
 			sizeParser = NewAEADSizeParser(lengthAuth)
 		}
-		return crypto.NewAuthenticationReader(auth, sizeParser, reader, request.Command.TransferType(), padding)
+		return crypto.NewAuthenticationReader(auth, sizeParser, reader, request.Command.TransferType(), padding), nil

 	case protocol.SecurityType_CHACHA20_POLY1305:
 		aead, _ := chacha20poly1305.New(GenerateChacha20Poly1305Key(s.requestBodyKey[:]))
@@ -389,10 +393,10 @@ func (s *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reade
 			}
 			sizeParser = NewAEADSizeParser(lengthAuth)
 		}
-		return crypto.NewAuthenticationReader(auth, sizeParser, reader, request.Command.TransferType(), padding)
+		return crypto.NewAuthenticationReader(auth, sizeParser, reader, request.Command.TransferType(), padding), nil

 	default:
-		panic("Unknown security type.")
+		return nil, newError("invalid option: Security")
 	}
 }

@@ -453,21 +457,25 @@ func (s *ServerSession) EncodeResponseHeader(header *protocol.ResponseHeader, wr
 }

 // EncodeResponseBody returns a Writer that auto-encrypt content written by caller.
-func (s *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writer io.Writer) buf.Writer {
+func (s *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writer io.Writer) (buf.Writer, error) {
 	var sizeParser crypto.ChunkSizeEncoder = crypto.PlainChunkSizeParser{}
 	if request.Option.Has(protocol.RequestOptionChunkMasking) {
 		sizeParser = NewShakeSizeParser(s.responseBodyIV[:])
 	}
 	var padding crypto.PaddingLengthGenerator
 	if request.Option.Has(protocol.RequestOptionGlobalPadding) {
-		padding = sizeParser.(crypto.PaddingLengthGenerator)
+		var ok bool
+		padding, ok = sizeParser.(crypto.PaddingLengthGenerator)
+		if !ok {
+			return nil, newError("invalid option: RequestOptionGlobalPadding")
+		}
 	}

 	switch request.Security {
 	case protocol.SecurityType_NONE:
 		if request.Option.Has(protocol.RequestOptionChunkStream) {
 			if request.Command.TransferType() == protocol.TransferTypeStream {
-				return crypto.NewChunkStreamWriter(sizeParser, writer)
+				return crypto.NewChunkStreamWriter(sizeParser, writer), nil
 			}

 			auth := &crypto.AEADAuthenticator{
@@ -475,9 +483,9 @@ func (s *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writ
 				NonceGenerator:          crypto.GenerateEmptyBytes(),
 				AdditionalDataGenerator: crypto.GenerateEmptyBytes(),
 			}
-			return crypto.NewAuthenticationWriter(auth, sizeParser, writer, protocol.TransferTypePacket, padding)
+			return crypto.NewAuthenticationWriter(auth, sizeParser, writer, protocol.TransferTypePacket, padding), nil
 		}
-		return buf.NewWriter(writer)
+		return buf.NewWriter(writer), nil

 	case protocol.SecurityType_LEGACY:
 		if request.Option.Has(protocol.RequestOptionChunkStream) {
@@ -486,9 +494,9 @@ func (s *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writ
 				NonceGenerator:          crypto.GenerateEmptyBytes(),
 				AdditionalDataGenerator: crypto.GenerateEmptyBytes(),
 			}
-			return crypto.NewAuthenticationWriter(auth, sizeParser, s.responseWriter, request.Command.TransferType(), padding)
+			return crypto.NewAuthenticationWriter(auth, sizeParser, s.responseWriter, request.Command.TransferType(), padding), nil
 		}
-		return &buf.SequentialWriter{Writer: s.responseWriter}
+		return &buf.SequentialWriter{Writer: s.responseWriter}, nil

 	case protocol.SecurityType_AES128_GCM:
 		aead := crypto.NewAesGcm(s.responseBodyKey[:])
@@ -508,7 +516,7 @@ func (s *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writ
 			}
 			sizeParser = NewAEADSizeParser(lengthAuth)
 		}
-		return crypto.NewAuthenticationWriter(auth, sizeParser, writer, request.Command.TransferType(), padding)
+		return crypto.NewAuthenticationWriter(auth, sizeParser, writer, request.Command.TransferType(), padding), nil

 	case protocol.SecurityType_CHACHA20_POLY1305:
 		aead, _ := chacha20poly1305.New(GenerateChacha20Poly1305Key(s.responseBodyKey[:]))
@@ -530,9 +538,9 @@ func (s *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writ
 			}
 			sizeParser = NewAEADSizeParser(lengthAuth)
 		}
-		return crypto.NewAuthenticationWriter(auth, sizeParser, writer, request.Command.TransferType(), padding)
+		return crypto.NewAuthenticationWriter(auth, sizeParser, writer, request.Command.TransferType(), padding), nil

 	default:
-		panic("Unknown security type.")
+		return nil, newError("invalid option: Security")
 	}
 }
--- a/proxy/vmess/inbound/inbound.go
+++ b/proxy/vmess/inbound/inbound.go
@@ -184,8 +184,10 @@ func (h *Handler) RemoveUser(ctx context.Context, email string) error {
 func transferResponse(timer signal.ActivityUpdater, session *encoding.ServerSession, request *protocol.RequestHeader, response *protocol.ResponseHeader, input buf.Reader, output *buf.BufferedWriter) error {
 	session.EncodeResponseHeader(response, output)

-	bodyWriter := session.EncodeResponseBody(request, output)
-
+	bodyWriter, err := session.EncodeResponseBody(request, output)
+	if err != nil {
+		return newError("failed to start decoding response").Base(err)
+	}
 	{
 		// Optimize for small response packet
 		data, err := input.ReadMultiBuffer()
@@ -301,7 +303,10 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 	requestDone := func() error {
 		defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)

-		bodyReader := svrSession.DecodeRequestBody(request, reader)
+		bodyReader, err := svrSession.DecodeRequestBody(request, reader)
+		if err != nil {
+			return newError("failed to start decoding").Base(err)
+		}
 		if err := buf.Copy(bodyReader, link.Writer, buf.UpdateActivity(timer)); err != nil {
 			return newError("failed to transfer request").Base(err)
 		}
--- a/proxy/vmess/outbound/outbound.go
+++ b/proxy/vmess/outbound/outbound.go
@@ -158,7 +158,10 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 			return newError("failed to encode request").Base(err).AtWarning()
 		}

-		bodyWriter := session.EncodeRequestBody(request, writer)
+		bodyWriter, err := session.EncodeRequestBody(request, writer)
+		if err != nil {
+			return newError("failed to start encoding").Base(err)
+		}
 		bodyWriter2 := bodyWriter
 		if request.Command == protocol.RequestCommandMux && request.Port == 666 {
 			bodyWriter = xudp.NewPacketWriter(bodyWriter, target)
@@ -194,7 +197,10 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		}
 		h.handleCommand(rec.Destination(), header.Command)

-		bodyReader := session.DecodeResponseBody(request, reader)
+		bodyReader, err := session.DecodeResponseBody(request, reader)
+		if err != nil {
+			return newError("failed to start encoding response").Base(err)
+		}
 		if request.Command == protocol.RequestCommandMux && request.Port == 666 {
 			bodyReader = xudp.NewPacketReader(&buf.BufferedReader{Reader: bodyReader})
 		}
--- a/testing/scenarios/shadowsocks_2022_test.go
+++ b/testing/scenarios/shadowsocks_2022_test.go
@@ -0,0 +1,209 @@
+package scenarios
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"testing"
+	"time"
+
+	"github.com/sagernet/sing-shadowsocks/shadowaead_2022"
+	"github.com/xtls/xray-core/app/log"
+	"github.com/xtls/xray-core/app/proxyman"
+	"github.com/xtls/xray-core/common"
+	clog "github.com/xtls/xray-core/common/log"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/core"
+	"github.com/xtls/xray-core/proxy/dokodemo"
+	"github.com/xtls/xray-core/proxy/freedom"
+	"github.com/xtls/xray-core/proxy/shadowsocks_2022"
+	"github.com/xtls/xray-core/testing/servers/tcp"
+	"github.com/xtls/xray-core/testing/servers/udp"
+	"golang.org/x/sync/errgroup"
+)
+
+func TestShadowsocks2022Tcp(t *testing.T) {
+	for _, method := range shadowaead_2022.List {
+		password := make([]byte, 32)
+		rand.Read(password)
+		t.Run(method, func(t *testing.T) {
+			testShadowsocks2022Tcp(t, method, base64.StdEncoding.EncodeToString(password))
+		})
+	}
+}
+
+func TestShadowsocks2022Udp(t *testing.T) {
+	for _, method := range shadowaead_2022.List {
+		password := make([]byte, 32)
+		rand.Read(password)
+		t.Run(method, func(t *testing.T) {
+			testShadowsocks2022Udp(t, method, base64.StdEncoding.EncodeToString(password))
+		})
+	}
+}
+
+func testShadowsocks2022Tcp(t *testing.T, method string, password string) {
+	tcpServer := tcp.Server{
+		MsgProcessor: xor,
+	}
+	dest, err := tcpServer.Start()
+	common.Must(err)
+	defer tcpServer.Close()
+
+	serverPort := tcp.PickPort()
+	serverConfig := &core.Config{
+		App: []*serial.TypedMessage{
+			serial.ToTypedMessage(&log.Config{
+				ErrorLogLevel: clog.Severity_Debug,
+				ErrorLogType:  log.LogType_Console,
+			}),
+		},
+		Inbound: []*core.InboundHandlerConfig{
+			{
+				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
+					PortList: &net.PortList{Range: []*net.PortRange{net.SinglePortRange(serverPort)}},
+					Listen:   net.NewIPOrDomain(net.LocalHostIP),
+				}),
+				ProxySettings: serial.ToTypedMessage(&shadowsocks_2022.ServerConfig{
+					Method:  method,
+					Key:     password,
+					Network: []net.Network{net.Network_TCP},
+				}),
+			},
+		},
+		Outbound: []*core.OutboundHandlerConfig{
+			{
+				ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
+			},
+		},
+	}
+
+	clientPort := tcp.PickPort()
+	clientConfig := &core.Config{
+		App: []*serial.TypedMessage{
+			serial.ToTypedMessage(&log.Config{
+				ErrorLogLevel: clog.Severity_Debug,
+				ErrorLogType:  log.LogType_Console,
+			}),
+		},
+		Inbound: []*core.InboundHandlerConfig{
+			{
+				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
+					PortList: &net.PortList{Range: []*net.PortRange{net.SinglePortRange(clientPort)}},
+					Listen:   net.NewIPOrDomain(net.LocalHostIP),
+				}),
+				ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
+					Address:  net.NewIPOrDomain(dest.Address),
+					Port:     uint32(dest.Port),
+					Networks: []net.Network{net.Network_TCP},
+				}),
+			},
+		},
+		Outbound: []*core.OutboundHandlerConfig{
+			{
+				ProxySettings: serial.ToTypedMessage(&shadowsocks_2022.ClientConfig{
+					Address: net.NewIPOrDomain(net.LocalHostIP),
+					Port:    uint32(serverPort),
+					Method:  method,
+					Key:     password,
+				}),
+			},
+		},
+	}
+
+	servers, err := InitializeServerConfigs(serverConfig, clientConfig)
+	common.Must(err)
+	defer CloseAllServers(servers)
+
+	var errGroup errgroup.Group
+	for i := 0; i < 10; i++ {
+		errGroup.Go(testTCPConn(clientPort, 10240*1024, time.Second*20))
+	}
+
+	if err := errGroup.Wait(); err != nil {
+		t.Error(err)
+	}
+}
+
+func testShadowsocks2022Udp(t *testing.T, method string, password string) {
+	udpServer := udp.Server{
+		MsgProcessor: xor,
+	}
+	udpDest, err := udpServer.Start()
+	common.Must(err)
+	defer udpServer.Close()
+
+	serverPort := udp.PickPort()
+	serverConfig := &core.Config{
+		App: []*serial.TypedMessage{
+			serial.ToTypedMessage(&log.Config{
+				ErrorLogLevel: clog.Severity_Debug,
+				ErrorLogType:  log.LogType_Console,
+			}),
+		},
+		Inbound: []*core.InboundHandlerConfig{
+			{
+				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
+					PortList: &net.PortList{Range: []*net.PortRange{net.SinglePortRange(serverPort)}},
+					Listen:   net.NewIPOrDomain(net.LocalHostIP),
+				}),
+				ProxySettings: serial.ToTypedMessage(&shadowsocks_2022.ServerConfig{
+					Method:  method,
+					Key:     password,
+					Network: []net.Network{net.Network_UDP},
+				}),
+			},
+		},
+		Outbound: []*core.OutboundHandlerConfig{
+			{
+				ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
+			},
+		},
+	}
+
+	udpClientPort := udp.PickPort()
+	clientConfig := &core.Config{
+		App: []*serial.TypedMessage{
+			serial.ToTypedMessage(&log.Config{
+				ErrorLogLevel: clog.Severity_Debug,
+				ErrorLogType:  log.LogType_Console,
+			}),
+		},
+		Inbound: []*core.InboundHandlerConfig{
+			{
+				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
+					PortList: &net.PortList{Range: []*net.PortRange{net.SinglePortRange(udpClientPort)}},
+					Listen:   net.NewIPOrDomain(net.LocalHostIP),
+				}),
+				ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
+					Address:  net.NewIPOrDomain(udpDest.Address),
+					Port:     uint32(udpDest.Port),
+					Networks: []net.Network{net.Network_UDP},
+				}),
+			},
+		},
+		Outbound: []*core.OutboundHandlerConfig{
+			{
+				ProxySettings: serial.ToTypedMessage(&shadowsocks_2022.ClientConfig{
+					Address: net.NewIPOrDomain(net.LocalHostIP),
+					Port:    uint32(serverPort),
+					Method:  method,
+					Key:     password,
+				}),
+			},
+		},
+	}
+
+	servers, err := InitializeServerConfigs(serverConfig, clientConfig)
+	common.Must(err)
+	defer CloseAllServers(servers)
+
+	var errGroup errgroup.Group
+	for i := 0; i < 10; i++ {
+		errGroup.Go(testUDPConn(udpClientPort, 1024, time.Second*5))
+	}
+
+	if err := errGroup.Wait(); err != nil {
+		t.Error(err)
+	}
+}
--- a/testing/scenarios/shadowsocks_test.go
+++ b/testing/scenarios/shadowsocks_test.go
@@ -1,10 +1,6 @@
 package scenarios

 import (
-	"crypto/rand"
-	"encoding/base64"
-	"github.com/sagernet/sing-shadowsocks/shadowaead_2022"
-	"github.com/xtls/xray-core/proxy/shadowsocks_2022"
 	"testing"
 	"time"

@@ -489,189 +485,3 @@ func TestShadowsocksNone(t *testing.T) {
 		t.Fatal(err)
 	}
 }
-
-func TestShadowsocks2022Tcp(t *testing.T) {
-	for _, method := range shadowaead_2022.List {
-		password := make([]byte, 32)
-		rand.Read(password)
-		t.Run(method, func(t *testing.T) {
-			testShadowsocks2022Tcp(t, method, base64.StdEncoding.EncodeToString(password))
-		})
-	}
-}
-
-func TestShadowsocks2022Udp(t *testing.T) {
-	for _, method := range shadowaead_2022.List {
-		password := make([]byte, 32)
-		rand.Read(password)
-		t.Run(method, func(t *testing.T) {
-			testShadowsocks2022Udp(t, method, base64.StdEncoding.EncodeToString(password))
-		})
-	}
-}
-
-func testShadowsocks2022Tcp(t *testing.T, method string, password string) {
-	tcpServer := tcp.Server{
-		MsgProcessor: xor,
-	}
-	dest, err := tcpServer.Start()
-	common.Must(err)
-	defer tcpServer.Close()
-
-	serverPort := tcp.PickPort()
-	serverConfig := &core.Config{
-		App: []*serial.TypedMessage{
-			serial.ToTypedMessage(&log.Config{
-				ErrorLogLevel: clog.Severity_Debug,
-				ErrorLogType:  log.LogType_Console,
-			}),
-		},
-		Inbound: []*core.InboundHandlerConfig{
-			{
-				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
-					PortList: &net.PortList{Range: []*net.PortRange{net.SinglePortRange(serverPort)}},
-					Listen:   net.NewIPOrDomain(net.LocalHostIP),
-				}),
-				ProxySettings: serial.ToTypedMessage(&shadowsocks_2022.ServerConfig{
-					Method:  method,
-					Key:     password,
-					Network: []net.Network{net.Network_TCP},
-				}),
-			},
-		},
-		Outbound: []*core.OutboundHandlerConfig{
-			{
-				ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
-			},
-		},
-	}
-
-	clientPort := tcp.PickPort()
-	clientConfig := &core.Config{
-		App: []*serial.TypedMessage{
-			serial.ToTypedMessage(&log.Config{
-				ErrorLogLevel: clog.Severity_Debug,
-				ErrorLogType:  log.LogType_Console,
-			}),
-		},
-		Inbound: []*core.InboundHandlerConfig{
-			{
-				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
-					PortList: &net.PortList{Range: []*net.PortRange{net.SinglePortRange(clientPort)}},
-					Listen:   net.NewIPOrDomain(net.LocalHostIP),
-				}),
-				ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
-					Address:  net.NewIPOrDomain(dest.Address),
-					Port:     uint32(dest.Port),
-					Networks: []net.Network{net.Network_TCP},
-				}),
-			},
-		},
-		Outbound: []*core.OutboundHandlerConfig{
-			{
-				ProxySettings: serial.ToTypedMessage(&shadowsocks_2022.ClientConfig{
-					Address: net.NewIPOrDomain(net.LocalHostIP),
-					Port:    uint32(serverPort),
-					Method:  method,
-					Key:     password,
-				}),
-			},
-		},
-	}
-
-	servers, err := InitializeServerConfigs(serverConfig, clientConfig)
-	common.Must(err)
-	defer CloseAllServers(servers)
-
-	var errGroup errgroup.Group
-	for i := 0; i < 10; i++ {
-		errGroup.Go(testTCPConn(clientPort, 10240*1024, time.Second*20))
-	}
-
-	if err := errGroup.Wait(); err != nil {
-		t.Error(err)
-	}
-}
-
-func testShadowsocks2022Udp(t *testing.T, method string, password string) {
-	udpServer := udp.Server{
-		MsgProcessor: xor,
-	}
-	udpDest, err := udpServer.Start()
-	common.Must(err)
-	defer udpServer.Close()
-
-	serverPort := udp.PickPort()
-	serverConfig := &core.Config{
-		App: []*serial.TypedMessage{
-			serial.ToTypedMessage(&log.Config{
-				ErrorLogLevel: clog.Severity_Debug,
-				ErrorLogType:  log.LogType_Console,
-			}),
-		},
-		Inbound: []*core.InboundHandlerConfig{
-			{
-				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
-					PortList: &net.PortList{Range: []*net.PortRange{net.SinglePortRange(serverPort)}},
-					Listen:   net.NewIPOrDomain(net.LocalHostIP),
-				}),
-				ProxySettings: serial.ToTypedMessage(&shadowsocks_2022.ServerConfig{
-					Method:  method,
-					Key:     password,
-					Network: []net.Network{net.Network_UDP},
-				}),
-			},
-		},
-		Outbound: []*core.OutboundHandlerConfig{
-			{
-				ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
-			},
-		},
-	}
-
-	udpClientPort := udp.PickPort()
-	clientConfig := &core.Config{
-		App: []*serial.TypedMessage{
-			serial.ToTypedMessage(&log.Config{
-				ErrorLogLevel: clog.Severity_Debug,
-				ErrorLogType:  log.LogType_Console,
-			}),
-		},
-		Inbound: []*core.InboundHandlerConfig{
-			{
-				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
-					PortList: &net.PortList{Range: []*net.PortRange{net.SinglePortRange(udpClientPort)}},
-					Listen:   net.NewIPOrDomain(net.LocalHostIP),
-				}),
-				ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
-					Address:  net.NewIPOrDomain(udpDest.Address),
-					Port:     uint32(udpDest.Port),
-					Networks: []net.Network{net.Network_UDP},
-				}),
-			},
-		},
-		Outbound: []*core.OutboundHandlerConfig{
-			{
-				ProxySettings: serial.ToTypedMessage(&shadowsocks_2022.ClientConfig{
-					Address: net.NewIPOrDomain(net.LocalHostIP),
-					Port:    uint32(serverPort),
-					Method:  method,
-					Key:     password,
-				}),
-			},
-		},
-	}
-
-	servers, err := InitializeServerConfigs(serverConfig, clientConfig)
-	common.Must(err)
-	defer CloseAllServers(servers)
-
-	var errGroup errgroup.Group
-	for i := 0; i < 10; i++ {
-		errGroup.Go(testUDPConn(udpClientPort, 1024, time.Second*5))
-	}
-
-	if err := errGroup.Wait(); err != nil {
-		t.Error(err)
-	}
-}
--- a/transport/internet/udp/dispatcher.go
+++ b/transport/internet/udp/dispatcher.go
@@ -2,6 +2,7 @@ package udp

 import (
 	"context"
+	"errors"
 	"io"
 	"sync"
 	"time"
@@ -107,7 +108,9 @@ func handleInput(ctx context.Context, conn *connEntry, dest net.Destination, cal

 		mb, err := input.ReadMultiBuffer()
 		if err != nil {
-			newError("failed to handle UDP input").Base(err).WriteToLog(session.ExportIDToError(ctx))
+			if !errors.Is(err, io.EOF) {
+				newError("failed to handle UDP input").Base(err).WriteToLog(session.ExportIDToError(ctx))
+			}
 			return
 		}
 		timer.Update()
Author	SHA1	Message	Date
yuhan6665	7d946562eb	Update version 1.5.8	2022-06-19 19:14:53 -04:00
Shelikhoo	d4f18b1342	Fix DoS attack vulnerability in VMess Option Processing	2022-06-19 19:13:37 -04:00
世界	ba4ce4c24f	Add shadowsocks 2022 relay service	2022-06-19 22:17:23 +08:00
Stash Networks	a1c3aed9d3	Add Stash to the iOS & macOS Client	2022-06-11 08:01:30 -04:00
世界	ec8904066a	Update dependencies	2022-06-10 15:53:05 +08:00
世界	def30a0882	Fix shadowsocks-2022 udp on 32-bit devices	2022-06-07 21:09:35 +08:00
世界	bd0cf955c7	Update shadowsocks-2022 multi-server usage	2022-06-07 11:17:08 +08:00
dependabot[bot]	e91f033c01	Bump github.com/marten-seemann/qtls-go1-18 from 0.1.1 to 0.1.2 Bumps [github.com/marten-seemann/qtls-go1-18](https://github.com/marten-seemann/qtls-go1-18) from 0.1.1 to 0.1.2. - [Release notes](https://github.com/marten-seemann/qtls-go1-18/releases) - [Commits](https://github.com/marten-seemann/qtls-go1-18/compare/v0.1.1...v0.1.2) --- updated-dependencies: - dependency-name: github.com/marten-seemann/qtls-go1-18 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-06-06 10:21:59 -04:00
dependabot[bot]	f1b70b4155	Bump github.com/marten-seemann/qtls-go1-17 from 0.1.1 to 0.1.2 Bumps [github.com/marten-seemann/qtls-go1-17](https://github.com/marten-seemann/qtls-go1-17) from 0.1.1 to 0.1.2. - [Release notes](https://github.com/marten-seemann/qtls-go1-17/releases) - [Commits](https://github.com/marten-seemann/qtls-go1-17/compare/v0.1.1...v0.1.2) --- updated-dependencies: - dependency-name: github.com/marten-seemann/qtls-go1-17 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-06-06 10:10:29 -04:00
yuhan6665	cc67e83a8f	Update version 1.5.7	2022-06-05 07:46:18 -04:00
世界	ea9246ec7f	Update dependencies	2022-06-05 09:35:52 +08:00
世界	0c9bd21b59	Fix disable invalidptr check	2022-06-05 09:35:32 +08:00
世界	34aab75484	Fix shadowsocks-2022 multi-user udp	2022-06-04 12:29:43 +08:00
世界	c3505632fd	Add udp over tcp support for shadowsocks-2022	2022-06-01 11:49:02 +08:00
世界	6f93ef7736	Remove useless error log	2022-06-01 11:11:53 +08:00
世界	c4a307e84d	Refactor to stdlib error unwrap method	2022-06-01 11:03:06 +08:00
世界	f1d753f069	Fix build in legacy golang version	2022-05-31 15:55:38 +08:00
世界	91ce752405	Fix close pipe	2022-05-31 11:44:32 +08:00