Update version 1.5.7

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 {
+	conn.Close()
-		newError("failed to close connection").Base(err).WriteToLog(session.ExportIDToError(ctx))
-	}
 }
 
 func (w *tcpWorker) Proxy() proxy.Inbound {

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
 }

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
+}

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
+}

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
 }
 

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.
+	// Unwrap returns the underlying error of this one.
-	Inner() error
+	Unwrap() error
 }
 
 type hasSeverity interface {
@@ -72,8 +71,8 @@ func (err *Error) Error() string {
 	return builder.String()
 }
 
-// Inner implements hasInnerError.Inner()
+// Unwrap implements hasInnerError.Unwrap()
-func (err *Error) Inner() error {
+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()
+			err = inner.Unwrap()
-		case *os.PathError:
-			if inner.Err == nil {
-				break L
-			}
-			err = inner.Err
-		case *os.SyscallError:
-			if inner.Err == nil {
-				break L
-			}
-			err = inner.Err
 		default:
 			break L
 		}

core/core.go

@@ -18,7 +18,7 @@ import (
 )
 
 var (
-	version  = "1.5.6"
+	version  = "1.5.7"
 	build    = "Custom"
 	codename = "Xray, Penetrates Everything."
 	intro    = "A unified platform for anti-censorship."

go.mod

@@ -16,18 +16,18 @@ require (
 	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 v0.0.0-20220605012533-e0f722558141
-	github.com/sagernet/sing-shadowsocks v0.0.0-20220528022643-c8403614f554
+	github.com/sagernet/sing-shadowsocks v0.0.0-20220605012719-1e22882ea853
 	github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb
 	github.com/stretchr/testify v1.7.1
 	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/net v0.0.0-20220531201128-c960675eff93
-	golang.org/x/sync v0.0.0-20220513210516-0976fa681c29
+	golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f
 	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a
-	google.golang.org/grpc v1.46.2
+	google.golang.org/grpc v1.47.0
 	google.golang.org/protobuf v1.28.0
 	h12.io/socks v1.0.3
 )

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=
@@ -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 v0.0.0-20220605012533-e0f722558141 h1:YN9EeHRIFYKei1woz2OucLTSpiNrULAHH+jl6upDemQ=
-github.com/sagernet/sing v0.0.0-20220528022605-7ba6439364fa/go.mod h1:w2HnJzXKHpD6F5Z/9XlSD4qbcpHY2RSZuQnFzqgELMg=
+github.com/sagernet/sing v0.0.0-20220605012533-e0f722558141/go.mod h1:w2HnJzXKHpD6F5Z/9XlSD4qbcpHY2RSZuQnFzqgELMg=
-github.com/sagernet/sing-shadowsocks v0.0.0-20220528022643-c8403614f554 h1:YpkHkuWrjHZ5m/Qd4RRwqCwyXEXH9pOMxZCHbvlxAXw=
+github.com/sagernet/sing-shadowsocks v0.0.0-20220605012719-1e22882ea853 h1:t1pn8v3kPvlaST/fY7GsPV8yIUFJDXzNcmSYQ+nrbEM=
-github.com/sagernet/sing-shadowsocks v0.0.0-20220528022643-c8403614f554/go.mod h1:7tXTkaw26rZAWgwg9owPUvkmZMeluxk7ntQChLJia4o=
+github.com/sagernet/sing-shadowsocks v0.0.0-20220605012719-1e22882ea853/go.mod h1:Afu8UIFlEwxTnlidTMSWqWHIduAWOrwY0tFr2LxBACQ=
 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=
@@ -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 v0.0.0-20220531201128-c960675eff93 h1:MYimHLfoXEpOhqd/zgoA/uoXzHB86AEky4LAx5ij9xA=
-golang.org/x/net v0.0.0-20220524220425-1d687d428aca/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
+golang.org/x/net v0.0.0-20220531201128-c960675eff93/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-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/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 v0.0.0-20220601150217-0de741cfad7f h1:Ax0t5p6N38Ga0dThY21weqDEyz2oklo4IvDkpigvkD8=
-golang.org/x/sync v0.0.0-20220513210516-0976fa681c29/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+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=
@@ -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=

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
 		}
 	}

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
+}

proxy/shadowsocks_2022/config.pb.go

@@ -239,10 +239,11 @@ type ClientConfig struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Address *net.IPOrDomain `protobuf:"bytes,1,opt,name=address,proto3" json:"address,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"`
+	Port       uint32          `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
-	Method  string          `protobuf:"bytes,3,opt,name=method,proto3" json:"method,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"`
+	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() {
@@ -305,6 +306,13 @@ 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{
@@ -340,7 +348,7 @@ var file_proxy_shadowsocks_2022_config_proto_rawDesc = []byte{
 	0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14, 0x0a, 0x05,
 	0x65, 0x6d, 0x61, 0x69, 0x6c, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x65, 0x6d, 0x61,
 	0x69, 0x6c, 0x12, 0x14, 0x0a, 0x05, 0x6c, 0x65, 0x76, 0x65, 0x6c, 0x18, 0x03, 0x20, 0x01, 0x28,
-	0x05, 0x52, 0x05, 0x6c, 0x65, 0x76, 0x65, 0x6c, 0x22, 0x83, 0x01, 0x0a, 0x0c, 0x43, 0x6c, 0x69,
+	0x05, 0x52, 0x05, 0x6c, 0x65, 0x76, 0x65, 0x6c, 0x22, 0xa5, 0x01, 0x0a, 0x0c, 0x43, 0x6c, 0x69,
 	0x65, 0x6e, 0x74, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x35, 0x0a, 0x07, 0x61, 0x64, 0x64,
 	0x72, 0x65, 0x73, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1b, 0x2e, 0x78, 0x72, 0x61,
 	0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x49, 0x50, 0x4f,
@@ -348,15 +356,17 @@ var file_proxy_shadowsocks_2022_config_proto_rawDesc = []byte{
 	0x12, 0x12, 0x0a, 0x04, 0x70, 0x6f, 0x72, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x04,
 	0x70, 0x6f, 0x72, 0x74, 0x12, 0x16, 0x0a, 0x06, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x18, 0x03,
 	0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x12, 0x10, 0x0a, 0x03,
-	0x6b, 0x65, 0x79, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x42, 0x72,
+	0x6b, 0x65, 0x79, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x20,
-	0x0a, 0x1f, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79,
+	0x0a, 0x0c, 0x75, 0x64, 0x70, 0x5f, 0x6f, 0x76, 0x65, 0x72, 0x5f, 0x74, 0x63, 0x70, 0x18, 0x05,
-	0x2e, 0x73, 0x68, 0x61, 0x64, 0x6f, 0x77, 0x73, 0x6f, 0x63, 0x6b, 0x73, 0x5f, 0x32, 0x30, 0x32,
+	0x20, 0x01, 0x28, 0x08, 0x52, 0x0a, 0x75, 0x64, 0x70, 0x4f, 0x76, 0x65, 0x72, 0x54, 0x63, 0x70,
-	0x32, 0x50, 0x01, 0x5a, 0x30, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
+	0x42, 0x72, 0x0a, 0x1f, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f,
-	0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70,
+	0x78, 0x79, 0x2e, 0x73, 0x68, 0x61, 0x64, 0x6f, 0x77, 0x73, 0x6f, 0x63, 0x6b, 0x73, 0x5f, 0x32,
-	0x72, 0x6f, 0x78, 0x79, 0x2f, 0x73, 0x68, 0x61, 0x64, 0x6f, 0x77, 0x73, 0x6f, 0x63, 0x6b, 0x73,
+	0x30, 0x32, 0x32, 0x50, 0x01, 0x5a, 0x30, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f,
-	0x5f, 0x32, 0x30, 0x32, 0x32, 0xaa, 0x02, 0x1a, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f,
+	0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65,
-	0x78, 0x79, 0x2e, 0x53, 0x68, 0x61, 0x64, 0x6f, 0x77, 0x73, 0x6f, 0x63, 0x6b, 0x73, 0x32, 0x30,
+	0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x73, 0x68, 0x61, 0x64, 0x6f, 0x77, 0x73, 0x6f, 0x63,
-	0x32, 0x32, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x6b, 0x73, 0x5f, 0x32, 0x30, 0x32, 0x32, 0xaa, 0x02, 0x1a, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50,
+	0x72, 0x6f, 0x78, 0x79, 0x2e, 0x53, 0x68, 0x61, 0x64, 0x6f, 0x77, 0x73, 0x6f, 0x63, 0x6b, 0x73,
+	0x32, 0x30, 0x32, 0x32, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

proxy/shadowsocks_2022/config.proto

@@ -35,4 +35,5 @@ message ClientConfig {
   uint32 port = 2;
   string method = 3;
   string key = 4;
+  bool udp_over_tcp = 5;
 }

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()
 }
 

proxy/shadowsocks_2022/inbound_multi.go

@@ -1,3 +1,5 @@
+//go:build go1.18
+
 package shadowsocks_2022
 
 import (
@@ -8,6 +10,7 @@ import (
 	"github.com/sagernet/sing-shadowsocks/shadowaead_2022"
 	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"
@@ -91,20 +94,23 @@ 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 +174,8 @@ 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()
 }

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())
@@ -127,7 +135,7 @@ 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 {
@@ -143,7 +151,12 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
 			}
 		}
 
-		serverConn := o.method.DialPacketConn(connection)
+		if o.uot {
-		return bufio.CopyPacketConn(ctx, packetConn, serverConn)
+			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))
+		}
 	}
 }

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
+}

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)
+	}
+}

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)
-	}
-}

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()