refine domain socket transport

app/proxyman/config.pb.go

@@ -6,7 +6,6 @@ import math "math"
 import v2ray_core_common_net "v2ray.com/core/common/net"
 import v2ray_core_common_net1 "v2ray.com/core/common/net"
 import v2ray_core_transport_internet "v2ray.com/core/transport/internet"
-import v2ray_core_internet_domainsocket "v2ray.com/core/transport/internet/domainsocket"
 import v2ray_core_common_serial "v2ray.com/core/common/serial"
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -157,7 +156,9 @@ func (m *AllocationStrategy_AllocationStrategyRefresh) GetValue() uint32 {
 }
 
 type ReceiverConfig struct {
-	PortRange                  *v2ray_core_common_net1.PortRange           `protobuf:"bytes,1,opt,name=port_range,json=portRange" json:"port_range,omitempty"`
+	// PortRange specifies the ports which the Receiver should listen on.
+	PortRange *v2ray_core_common_net1.PortRange `protobuf:"bytes,1,opt,name=port_range,json=portRange" json:"port_range,omitempty"`
+	// Listen specifies the IP address that the Receiver should listen on.
 	Listen                     *v2ray_core_common_net.IPOrDomain           `protobuf:"bytes,2,opt,name=listen" json:"listen,omitempty"`
 	AllocationStrategy         *AllocationStrategy                         `protobuf:"bytes,3,opt,name=allocation_strategy,json=allocationStrategy" json:"allocation_strategy,omitempty"`
 	StreamSettings             *v2ray_core_transport_internet.StreamConfig `protobuf:"bytes,4,opt,name=stream_settings,json=streamSettings" json:"stream_settings,omitempty"`
@@ -212,38 +213,6 @@ func (m *ReceiverConfig) GetDomainOverride() []KnownProtocols {
 	return nil
 }
 
-type UnixReceiverConfig struct {
-	DomainSockSettings *v2ray_core_internet_domainsocket.DomainSocketSettings `protobuf:"bytes,2,opt,name=domainSockSettings" json:"domainSockSettings,omitempty"`
-	StreamSettings     *v2ray_core_transport_internet.StreamConfig            `protobuf:"bytes,4,opt,name=stream_settings,json=streamSettings" json:"stream_settings,omitempty"`
-	DomainOverride     []KnownProtocols                                       `protobuf:"varint,7,rep,packed,name=domain_override,json=domainOverride,enum=v2ray.core.app.proxyman.KnownProtocols" json:"domain_override,omitempty"`
-}
-
-func (m *UnixReceiverConfig) Reset()                    { *m = UnixReceiverConfig{} }
-func (m *UnixReceiverConfig) String() string            { return proto.CompactTextString(m) }
-func (*UnixReceiverConfig) ProtoMessage()               {}
-func (*UnixReceiverConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
-
-func (m *UnixReceiverConfig) GetDomainSockSettings() *v2ray_core_internet_domainsocket.DomainSocketSettings {
-	if m != nil {
-		return m.DomainSockSettings
-	}
-	return nil
-}
-
-func (m *UnixReceiverConfig) GetStreamSettings() *v2ray_core_transport_internet.StreamConfig {
-	if m != nil {
-		return m.StreamSettings
-	}
-	return nil
-}
-
-func (m *UnixReceiverConfig) GetDomainOverride() []KnownProtocols {
-	if m != nil {
-		return m.DomainOverride
-	}
-	return nil
-}
-
 type InboundHandlerConfig struct {
 	Tag              string                                 `protobuf:"bytes,1,opt,name=tag" json:"tag,omitempty"`
 	ReceiverSettings *v2ray_core_common_serial.TypedMessage `protobuf:"bytes,2,opt,name=receiver_settings,json=receiverSettings" json:"receiver_settings,omitempty"`
@@ -253,7 +222,7 @@ type InboundHandlerConfig struct {
 func (m *InboundHandlerConfig) Reset()                    { *m = InboundHandlerConfig{} }
 func (m *InboundHandlerConfig) String() string            { return proto.CompactTextString(m) }
 func (*InboundHandlerConfig) ProtoMessage()               {}
-func (*InboundHandlerConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
+func (*InboundHandlerConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
 
 func (m *InboundHandlerConfig) GetTag() string {
 	if m != nil {
@@ -282,7 +251,7 @@ type OutboundConfig struct {
 func (m *OutboundConfig) Reset()                    { *m = OutboundConfig{} }
 func (m *OutboundConfig) String() string            { return proto.CompactTextString(m) }
 func (*OutboundConfig) ProtoMessage()               {}
-func (*OutboundConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
+func (*OutboundConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
 
 type SenderConfig struct {
 	// Send traffic through the given IP. Only IP is allowed.
@@ -295,7 +264,7 @@ type SenderConfig struct {
 func (m *SenderConfig) Reset()                    { *m = SenderConfig{} }
 func (m *SenderConfig) String() string            { return proto.CompactTextString(m) }
 func (*SenderConfig) ProtoMessage()               {}
-func (*SenderConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
+func (*SenderConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
 
 func (m *SenderConfig) GetVia() *v2ray_core_common_net.IPOrDomain {
 	if m != nil {
@@ -325,46 +294,6 @@ func (m *SenderConfig) GetMultiplexSettings() *MultiplexingConfig {
 	return nil
 }
 
-type UnixSenderConfig struct {
-	DomainSockSettings *v2ray_core_internet_domainsocket.DomainSocketSettings `protobuf:"bytes,1,opt,name=domainSockSettings" json:"domainSockSettings,omitempty"`
-	StreamSettings     *v2ray_core_transport_internet.StreamConfig            `protobuf:"bytes,2,opt,name=stream_settings,json=streamSettings" json:"stream_settings,omitempty"`
-	ProxySettings      *v2ray_core_transport_internet.ProxyConfig             `protobuf:"bytes,3,opt,name=proxy_settings,json=proxySettings" json:"proxy_settings,omitempty"`
-	MultiplexSettings  *MultiplexingConfig                                    `protobuf:"bytes,4,opt,name=multiplex_settings,json=multiplexSettings" json:"multiplex_settings,omitempty"`
-}
-
-func (m *UnixSenderConfig) Reset()                    { *m = UnixSenderConfig{} }
-func (m *UnixSenderConfig) String() string            { return proto.CompactTextString(m) }
-func (*UnixSenderConfig) ProtoMessage()               {}
-func (*UnixSenderConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{7} }
-
-func (m *UnixSenderConfig) GetDomainSockSettings() *v2ray_core_internet_domainsocket.DomainSocketSettings {
-	if m != nil {
-		return m.DomainSockSettings
-	}
-	return nil
-}
-
-func (m *UnixSenderConfig) GetStreamSettings() *v2ray_core_transport_internet.StreamConfig {
-	if m != nil {
-		return m.StreamSettings
-	}
-	return nil
-}
-
-func (m *UnixSenderConfig) GetProxySettings() *v2ray_core_transport_internet.ProxyConfig {
-	if m != nil {
-		return m.ProxySettings
-	}
-	return nil
-}
-
-func (m *UnixSenderConfig) GetMultiplexSettings() *MultiplexingConfig {
-	if m != nil {
-		return m.MultiplexSettings
-	}
-	return nil
-}
-
 type MultiplexingConfig struct {
 	// Whether or not Mux is enabled.
 	Enabled bool `protobuf:"varint,1,opt,name=enabled" json:"enabled,omitempty"`
@@ -375,7 +304,7 @@ type MultiplexingConfig struct {
 func (m *MultiplexingConfig) Reset()                    { *m = MultiplexingConfig{} }
 func (m *MultiplexingConfig) String() string            { return proto.CompactTextString(m) }
 func (*MultiplexingConfig) ProtoMessage()               {}
-func (*MultiplexingConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{8} }
+func (*MultiplexingConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
 
 func (m *MultiplexingConfig) GetEnabled() bool {
 	if m != nil {
@@ -397,11 +326,9 @@ func init() {
 	proto.RegisterType((*AllocationStrategy_AllocationStrategyConcurrency)(nil), "v2ray.core.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency")
 	proto.RegisterType((*AllocationStrategy_AllocationStrategyRefresh)(nil), "v2ray.core.app.proxyman.AllocationStrategy.AllocationStrategyRefresh")
 	proto.RegisterType((*ReceiverConfig)(nil), "v2ray.core.app.proxyman.ReceiverConfig")
-	proto.RegisterType((*UnixReceiverConfig)(nil), "v2ray.core.app.proxyman.UnixReceiverConfig")
 	proto.RegisterType((*InboundHandlerConfig)(nil), "v2ray.core.app.proxyman.InboundHandlerConfig")
 	proto.RegisterType((*OutboundConfig)(nil), "v2ray.core.app.proxyman.OutboundConfig")
 	proto.RegisterType((*SenderConfig)(nil), "v2ray.core.app.proxyman.SenderConfig")
-	proto.RegisterType((*UnixSenderConfig)(nil), "v2ray.core.app.proxyman.UnixSenderConfig")
 	proto.RegisterType((*MultiplexingConfig)(nil), "v2ray.core.app.proxyman.MultiplexingConfig")
 	proto.RegisterEnum("v2ray.core.app.proxyman.KnownProtocols", KnownProtocols_name, KnownProtocols_value)
 	proto.RegisterEnum("v2ray.core.app.proxyman.AllocationStrategy_Type", AllocationStrategy_Type_name, AllocationStrategy_Type_value)
@@ -410,60 +337,54 @@ func init() {
 func init() { proto.RegisterFile("v2ray.com/core/app/proxyman/config.proto", fileDescriptor0) }
 
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+	0x6a, 0xf7, 0x1b, 0xf8, 0xe4, 0xc9, 0xe3, 0xa0, 0x03, 0x78, 0x3d, 0x27, 0xd1, 0x4c, 0xa5, 0xd6,
+	0xc6, 0xea, 0xa3, 0xfb, 0x35, 0x7c, 0xb8, 0x13, 0xbe, 0xdd, 0xd2, 0xff, 0x0a, 0xea, 0x79, 0x8a,
+	0x08, 0xa0, 0x71, 0x16, 0xdd, 0x93, 0x2c, 0x35, 0x5f, 0xe5, 0x6b, 0x4c, 0x98, 0xcf, 0x63, 0x53,
+	0x43, 0x6f, 0xa1, 0x75, 0xf1, 0x90, 0x37, 0x04, 0x89, 0xcc, 0x5a, 0xff, 0x5f, 0x1d, 0x0c, 0x4c,
+	0x3d, 0x1a, 0xce, 0xa9, 0x50, 0x55, 0x45, 0xdf, 0x01, 0xe4, 0x6d, 0xe3, 0x0a, 0xc2, 0x02, 0xc5,
+	0xde, 0x1b, 0xf6, 0x56, 0xe3, 0x50, 0x9d, 0x62, 0x31, 0x2a, 0x2d, 0x87, 0x0b, 0x89, 0x73, 0x1d,
+	0x7e, 0x93, 0x54, 0x4b, 0xf4, 0x2d, 0x34, 0xa2, 0x30, 0x95, 0x94, 0x95, 0x45, 0xfb, 0x74, 0x87,
+	0xf9, 0xca, 0x19, 0x8b, 0x73, 0x1e, 0x93, 0x90, 0xe1, 0xd2, 0x80, 0x7e, 0x83, 0x0f, 0xc8, 0xe2,
+	0xbe, 0x6e, 0x5a, 0x5e, 0xb8, 0xac, 0xc9, 0x97, 0xcf, 0xa8, 0x09, 0x46, 0x64, 0xb3, 0x31, 0xa7,
+	0xb0, 0x9f, 0x4a, 0x41, 0x49, 0xec, 0xa6, 0x54, 0xca, 0x90, 0x05, 0x69, 0xa7, 0xbe, 0x49, 0x5e,
+	0x3c, 0x1c, 0xab, 0x7a, 0x38, 0xd6, 0xa4, 0x70, 0xa9, 0x7c, 0xb0, 0xa1, 0x18, 0x93, 0x12, 0x81,
+	0xbe, 0x87, 0x8f, 0x85, 0x4a, 0xd0, 0xe5, 0x22, 0x0c, 0x42, 0x46, 0x22, 0xd7, 0xa7, 0xa9, 0x0c,
+	0x59, 0xb1, 0x7b, 0xe7, 0x75, 0x4f, 0x1b, 0xb4, 0x70, 0xb7, 0xd4, 0x8c, 0x4b, 0xc9, 0xf9, 0x52,
+	0x81, 0x1c, 0xd8, 0xf7, 0x8b, 0x1c, 0x5c, 0x3e, 0xa7, 0x42, 0x84, 0x3e, 0xed, 0x34, 0x7b, 0xfa,
+	0xc0, 0x18, 0x1e, 0xed, 0xbc, 0xf1, 0x4f, 0x8c, 0xdf, 0x33, 0x27, 0x7f, 0x96, 0x1e, 0x8f, 0x52,
+	0x6c, 0x28, 0xff, 0xb8, 0xb4, 0xff, 0x58, 0x6f, 0x35, 0xcc, 0x66, 0xff, 0x1f, 0x0d, 0x0e, 0xca,
+	0x17, 0x7b, 0x49, 0x98, 0x1f, 0x2d, 0x4a, 0x6c, 0x82, 0x2e, 0x49, 0x50, 0xd4, 0xf6, 0x0d, 0xce,
+	0x97, 0x68, 0x02, 0xef, 0xca, 0x03, 0x8a, 0x65, 0x38, 0xaa, 0x7c, 0x5f, 0x6c, 0x29, 0x9f, 0x9a,
+	0x12, 0xc5, 0x73, 0xf5, 0xaf, 0xd5, 0x90, 0xc0, 0x66, 0x05, 0x58, 0x24, 0x73, 0x0d, 0x46, 0x71,
+	0xe0, 0x25, 0x51, 0x7f, 0x16, 0xb1, 0x5d, 0xb8, 0x2b, 0x5c, 0xdf, 0x04, 0x63, 0x3c, 0x93, 0xab,
+	0x03, 0xe8, 0xef, 0x1a, 0xbc, 0x9d, 0x50, 0xe6, 0x2f, 0x2e, 0x76, 0x0a, 0xfa, 0x3c, 0x24, 0x65,
+	0xd3, 0xbe, 0x47, 0xdf, 0xe5, 0xea, 0x6d, 0x6d, 0x51, 0x7b, 0x79, 0x5b, 0xfc, 0xb2, 0xe3, 0xf2,
+	0xc7, 0xff, 0x03, 0x75, 0x72, 0x53, 0xc9, 0x5c, 0x0f, 0x00, 0xdd, 0x00, 0x8a, 0x67, 0x91, 0x0c,
+	0x93, 0x88, 0x3e, 0x3c, 0xd9, 0xc2, 0x6b, 0xad, 0x72, 0x5d, 0x59, 0x42, 0x16, 0x94, 0xdc, 0x77,
+	0x0b, 0xcc, 0x22, 0x5c, 0x07, 0xd0, 0xa6, 0x10, 0x75, 0xa0, 0x49, 0x19, 0xb9, 0x8d, 0xa8, 0x5f,
+	0x64, 0xda, 0xc2, 0xd5, 0x27, 0xea, 0x6d, 0x8e, 0xe7, 0xf6, 0xda, 0x4c, 0x3d, 0xfe, 0x0c, 0x8c,
+	0xf5, 0x2e, 0x45, 0x2d, 0xa8, 0x5f, 0x4e, 0xa7, 0x8e, 0xf9, 0x0a, 0x35, 0x41, 0x9f, 0xfe, 0x3c,
+	0x31, 0xb5, 0x1f, 0x46, 0xf0, 0x91, 0xc7, 0xe3, 0x5d, 0x67, 0x77, 0xb4, 0x9b, 0x56, 0xb5, 0xfe,
+	0xb3, 0x76, 0xf8, 0xeb, 0x10, 0x93, 0xcc, 0x1a, 0xe5, 0xaa, 0xb3, 0x24, 0x51, 0x49, 0xc5, 0x84,
+	0xdd, 0x36, 0x8a, 0xdf, 0xa7, 0xd3, 0xff, 0x02, 0x00, 0x00, 0xff, 0xff, 0x6a, 0xe5, 0x6f, 0xed,
+	0x95, 0x07, 0x00, 0x00,
 }

app/proxyman/config.proto

@@ -9,7 +9,6 @@ option java_multiple_files = true;
 import "v2ray.com/core/common/net/address.proto";
 import "v2ray.com/core/common/net/port.proto";
 import "v2ray.com/core/transport/internet/config.proto";
-import "v2ray.com/core/transport/internet/domainsocket/config.proto";
 import "v2ray.com/core/common/serial/typed_message.proto";
 
 message InboundConfig {
@@ -53,7 +52,9 @@ enum KnownProtocols {
 }
 
 message ReceiverConfig {
+  // PortRange specifies the ports which the Receiver should listen on.
   v2ray.core.common.net.PortRange port_range = 1;
+  // Listen specifies the IP address that the Receiver should listen on.
   v2ray.core.common.net.IPOrDomain listen = 2;
   AllocationStrategy allocation_strategy = 3;
   v2ray.core.transport.internet.StreamConfig stream_settings = 4;
@@ -62,15 +63,6 @@ message ReceiverConfig {
   repeated KnownProtocols domain_override = 7;
 }
 
-message UnixReceiverConfig {
-  reserved 1;
-  v2ray.core.internet.domainsocket.DomainSocketSettings domainSockSettings = 2;
-  reserved 3;
-  v2ray.core.transport.internet.StreamConfig stream_settings = 4;
-  reserved 5,6;
-  repeated KnownProtocols domain_override = 7;
-}
-
 message InboundHandlerConfig {
   string tag = 1;
   v2ray.core.common.serial.TypedMessage receiver_settings = 2;
@@ -89,14 +81,6 @@ message SenderConfig {
   MultiplexingConfig multiplex_settings = 4;
 }
 
-
-message UnixSenderConfig {
-  v2ray.core.internet.domainsocket.DomainSocketSettings domainSockSettings = 1;
-  v2ray.core.transport.internet.StreamConfig stream_settings = 2;
-  v2ray.core.transport.internet.ProxyConfig proxy_settings = 3;
-  MultiplexingConfig multiplex_settings = 4;
-}
-
 message MultiplexingConfig {
   // Whether or not Mux is enabled.
   bool enabled = 1;

app/proxyman/inbound/inbound.go

@@ -134,10 +134,6 @@ func NewHandler(ctx context.Context, config *core.InboundHandlerConfig) (core.In
 
 	receiverSettings, ok := rawReceiverSettings.(*proxyman.ReceiverConfig)
 	if !ok {
-		receiverSettings, ok := rawReceiverSettings.(*proxyman.UnixReceiverConfig)
-		if ok {
-			return NewUnixInboundHandler(ctx, tag, receiverSettings, proxySettings)
-		}
 		return nil, newError("not a ReceiverConfig").AtError()
 	}
 

app/proxyman/inbound/unix.go

@@ -1,100 +0,0 @@
-package inbound
-
-import (
-	"context"
-
-	"v2ray.com/core/app/proxyman"
-	"v2ray.com/core/app/proxyman/mux"
-	"v2ray.com/core/common"
-	"v2ray.com/core/common/net"
-	"v2ray.com/core/proxy"
-	"v2ray.com/core/transport/internet/domainsocket"
-)
-
-type UnixInboundHandler struct {
-	tag            string
-	listenerHolder *domainsocket.Listener
-	ctx            context.Context
-	path           string
-	proxy          proxy.Inbound
-	mux            *mux.Server
-	additional     *proxyman.UnixReceiverConfig
-}
-
-func (uih *UnixInboundHandler) Start() error {
-	var err error
-	uih.listenerHolder, err = domainsocket.ListenDS(uih.ctx, uih.path)
-	if err != nil {
-		return newError(err).AtError()
-	}
-	err = uih.listenerHolder.LowerUP()
-	if err != nil {
-		return newError(err).AtError()
-	}
-	nchan := make(chan net.Conn, 2)
-	err = uih.listenerHolder.UP(nchan, false)
-	if err != nil {
-		return newError(err).AtError()
-	}
-	go uih.progressTraffic(nchan)
-	return nil
-}
-func (uih *UnixInboundHandler) progressTraffic(rece <-chan net.Conn) {
-
-	for {
-		conn, notclosed := <-rece
-		if !notclosed {
-			return
-		}
-		go func(conn net.Conn) {
-			ctx, cancel := context.WithCancel(uih.ctx)
-			if len(uih.tag) > 0 {
-				ctx = proxy.ContextWithInboundTag(ctx, uih.tag)
-			}
-			if err := uih.proxy.Process(ctx, net.Network_TCP, conn, uih.mux); err != nil {
-				newError("connection ends").Base(err).WriteToLog()
-			}
-			cancel()
-			conn.Close()
-		}(conn)
-	}
-}
-func (uih *UnixInboundHandler) Close() error {
-	if uih.listenerHolder != nil {
-		uih.listenerHolder.Down()
-		return nil
-	}
-	return newError("Called UnixInboundHandler.Close while listenerHolder is nil")
-
-}
-func (uih *UnixInboundHandler) Tag() string {
-	return uih.tag
-}
-
-func (uih *UnixInboundHandler) GetRandomInboundProxy() (interface{}, net.Port, int) {
-	//It makes bo sense to support it
-	return nil, 0, 0
-}
-
-func NewUnixInboundHandler(ctx context.Context, tag string, receiverConfig *proxyman.UnixReceiverConfig, proxyConfig interface{}) (*UnixInboundHandler, error) {
-	rawProxy, err := common.CreateObject(ctx, proxyConfig)
-	if err != nil {
-		return nil, err
-	}
-	p, ok := rawProxy.(proxy.Inbound)
-	if !ok {
-		return nil, newError("not an inbound proxy.")
-	}
-
-	h := &UnixInboundHandler{
-		proxy:      p,
-		mux:        mux.NewServer(ctx),
-		tag:        tag,
-		ctx:        ctx,
-		path:       receiverConfig.DomainSockSettings.GetPath(),
-		additional: receiverConfig,
-	}
-
-	return h, nil
-
-}

app/proxyman/outbound/handler.go

@@ -36,8 +36,6 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (core.O
 		switch s := senderSettings.(type) {
 		case *proxyman.SenderConfig:
 			h.senderSettings = s
-		case *proxyman.UnixSenderConfig:
-			return NewUnixHandler(ctx, config)
 		default:
 			return nil, newError("settings is not SenderConfig")
 		}

app/proxyman/outbound/unix.go

@@ -1,132 +0,0 @@
-package outbound
-
-import (
-	"context"
-	"io"
-
-	"v2ray.com/core"
-	"v2ray.com/core/app/proxyman"
-	"v2ray.com/core/app/proxyman/mux"
-	"v2ray.com/core/common"
-	"v2ray.com/core/common/errors"
-	"v2ray.com/core/common/net"
-	"v2ray.com/core/proxy"
-	"v2ray.com/core/transport/internet"
-	"v2ray.com/core/transport/internet/domainsocket"
-	"v2ray.com/core/transport/ray"
-)
-
-type UnixHandler struct {
-	config          *core.OutboundHandlerConfig
-	senderSettings  *proxyman.UnixSenderConfig
-	proxy           proxy.Outbound
-	outboundManager core.OutboundHandlerManager
-	mux             *mux.ClientManager
-}
-
-func NewUnixHandler(ctx context.Context, config *core.OutboundHandlerConfig) (core.OutboundHandler, error) {
-	v := core.FromContext(ctx)
-	if v == nil {
-		return nil, newError("V is not in context")
-	}
-	h := &UnixHandler{
-		config:          config,
-		outboundManager: v.OutboundHandlerManager(),
-	}
-
-	if config.SenderSettings != nil {
-		senderSettings, err := config.SenderSettings.GetInstance()
-		if err != nil {
-			return nil, err
-		}
-		switch s := senderSettings.(type) {
-		case *proxyman.UnixSenderConfig:
-			h.senderSettings = s
-		default:
-			return nil, newError("settings is not UnixSenderConfig")
-		}
-	}
-
-	proxyConfig, err := config.ProxySettings.GetInstance()
-	if err != nil {
-		return nil, err
-	}
-
-	rawProxyHandler, err := common.CreateObject(ctx, proxyConfig)
-	if err != nil {
-		return nil, err
-	}
-
-	proxyHandler, ok := rawProxyHandler.(proxy.Outbound)
-	if !ok {
-		return nil, newError("not an outbound handler")
-	}
-
-	if h.senderSettings != nil && h.senderSettings.MultiplexSettings != nil && h.senderSettings.MultiplexSettings.Enabled {
-		config := h.senderSettings.MultiplexSettings
-		if config.Concurrency < 1 || config.Concurrency > 1024 {
-			return nil, newError("invalid mux concurrency: ", config.Concurrency).AtWarning()
-		}
-		h.mux = mux.NewClientManager(proxyHandler, h, config)
-	}
-
-	h.proxy = proxyHandler
-	return h, nil
-}
-
-// Tag implements core.OutboundHandler.
-func (h *UnixHandler) Tag() string {
-	return h.config.Tag
-}
-
-// Dispatch implements proxy.Outbound.Dispatch.
-func (h *UnixHandler) Dispatch(ctx context.Context, outboundRay ray.OutboundRay) {
-	if h.mux != nil {
-		err := h.mux.Dispatch(ctx, outboundRay)
-		if err != nil {
-			newError("failed to process outbound traffic").Base(err).WriteToLog()
-			outboundRay.OutboundOutput().CloseError()
-		}
-	} else {
-		err := h.proxy.Process(ctx, outboundRay, h)
-		// Ensure outbound ray is properly closed.
-		if err != nil && errors.Cause(err) != io.EOF {
-			newError("failed to process outbound traffic").Base(err).WriteToLog()
-			outboundRay.OutboundOutput().CloseError()
-		} else {
-			outboundRay.OutboundOutput().Close()
-		}
-		outboundRay.OutboundInput().CloseError()
-	}
-}
-
-// Dial implements proxy.Dialer.Dial().
-func (h *UnixHandler) Dial(ctx context.Context, dest net.Destination) (internet.Connection, error) {
-	if h.senderSettings != nil {
-		if h.senderSettings.ProxySettings.HasTag() {
-			newError("Unix domain socket does not support redirect").AtWarning().WriteToLog()
-		}
-
-		if h.senderSettings.StreamSettings != nil {
-			newError("Unix domain socket does not support stream setting").AtWarning().WriteToLog()
-		}
-	}
-
-	return domainsocket.DialDS(ctx, h.senderSettings.GetDomainSockSettings().GetPath())
-}
-
-// GetOutbound implements proxy.GetOutbound.
-func (h *UnixHandler) GetOutbound() proxy.Outbound {
-	return h.proxy
-}
-
-// Start implements common.Runnable.
-func (h *UnixHandler) Start() error {
-	return nil
-}
-
-// Close implements common.Runnable.
-func (h *UnixHandler) Close() error {
-	common.Close(h.mux)
-	return nil
-}

app/stats/command/command.pb.go

@@ -5,8 +5,7 @@ import fmt "fmt"
 import math "math"
 
 import (
-	"context"
-
+	context "golang.org/x/net/context"
 	grpc "google.golang.org/grpc"
 )
 

common/net/system.go

@@ -10,6 +10,7 @@ var DialUnix = net.DialUnix
 var Listen = net.Listen
 var ListenTCP = net.ListenTCP
 var ListenUDP = net.ListenUDP
+var ListenUnix = net.ListenUnix
 
 var LookupIP = net.LookupIP
 
@@ -48,3 +49,5 @@ type Dialer = net.Dialer
 type Listener = net.Listener
 type TCPListener = net.TCPListener
 type UnixListener = net.UnixListener
+
+var ResolveUnixAddr = net.ResolveUnixAddr

testing/scenarios/unixtest/unix.go

@@ -1 +0,0 @@
-package unixtest

testing/scenarios/unixtest/unix_test.go

@@ -1,129 +0,0 @@
-package unixtest
-
-import (
-	"testing"
-
-	"v2ray.com/core"
-	"v2ray.com/core/app/log"
-	"v2ray.com/core/app/proxyman"
-	"v2ray.com/core/common"
-	clog "v2ray.com/core/common/log"
-	"v2ray.com/core/common/net"
-	"v2ray.com/core/common/serial"
-	"v2ray.com/core/proxy/dokodemo"
-	"v2ray.com/core/proxy/freedom"
-	. "v2ray.com/ext/assert"
-
-	"v2ray.com/core/testing/servers/tcp"
-
-	"v2ray.com/core/testing/scenarios"
-
-	"v2ray.com/core/transport/internet/domainsocket"
-)
-
-func xor(b []byte) []byte {
-	r := make([]byte, len(b))
-	for i, v := range b {
-		r[i] = v ^ 'c'
-	}
-	return r
-}
-
-func pickPort() net.Port {
-	listener, err := net.Listen("tcp4", "127.0.0.1:0")
-	common.Must(err)
-	defer listener.Close()
-
-	addr := listener.Addr().(*net.TCPAddr)
-	return net.Port(addr.Port)
-}
-
-func TestUnix2tcpS(t *testing.T) {
-	assert := With(t)
-	tcpServer := tcp.Server{
-		MsgProcessor: xor,
-	}
-	dest, err := tcpServer.Start()
-	assert(err, IsNil)
-	defer tcpServer.Close()
-
-	Server := &core.Config{
-		App: []*serial.TypedMessage{
-			serial.ToTypedMessage(&log.Config{
-				ErrorLogLevel: clog.Severity_Debug,
-				ErrorLogType:  log.LogType_Console,
-			}),
-		},
-		Inbound: []*core.InboundHandlerConfig{
-			{
-				ReceiverSettings: serial.ToTypedMessage(&proxyman.UnixReceiverConfig{
-					DomainSockSettings: &domainsocket.DomainSocketSettings{Path: "\x00v2raytest"},
-				}),
-				ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
-					Address: net.NewIPOrDomain(dest.Address),
-					Port:    uint32(dest.Port),
-					NetworkList: &net.NetworkList{
-						Network: []net.Network{net.Network_TCP},
-					},
-				}),
-			},
-		},
-		Outbound: []*core.OutboundHandlerConfig{
-			{ProxySettings: serial.ToTypedMessage(&freedom.Config{})},
-		},
-	}
-	serverPort := pickPort()
-	Client := &core.Config{
-		App: []*serial.TypedMessage{
-			serial.ToTypedMessage(&log.Config{
-				ErrorLogLevel: clog.Severity_Debug,
-				ErrorLogType:  log.LogType_Console,
-			}),
-		},
-		Outbound: []*core.OutboundHandlerConfig{
-			{
-				SenderSettings: serial.ToTypedMessage(&proxyman.UnixSenderConfig{
-					DomainSockSettings: &domainsocket.DomainSocketSettings{Path: "\x00v2raytest"},
-				}),
-				ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
-			},
-		},
-		Inbound: []*core.InboundHandlerConfig{
-			{ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
-				Address: net.NewIPOrDomain(dest.Address),
-				Port:    uint32(dest.Port),
-				NetworkList: &net.NetworkList{
-					Network: []net.Network{net.Network_TCP},
-				},
-			}),
-				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
-					PortRange: net.SinglePortRange(serverPort),
-					Listen:    net.NewIPOrDomain(net.LocalHostIP),
-				}),
-			},
-		},
-	}
-
-	servers, err := scenarios.InitializeServerConfigs(Server, Client)
-
-	port := serverPort
-
-	conn, err := net.DialTCP("tcp", nil, &net.TCPAddr{
-		IP:   []byte{127, 0, 0, 1},
-		Port: int(port),
-	})
-	assert(err, IsNil)
-
-	payload := "dokodemo request."
-	nBytes, err := conn.Write([]byte(payload))
-	assert(err, IsNil)
-	assert(nBytes, Equals, len(payload))
-
-	response := make([]byte, 1024)
-	nBytes, err = conn.Read(response)
-	assert(err, IsNil)
-	assert(response[:nBytes], Equals, xor([]byte(payload)))
-	assert(conn.Close(), IsNil)
-
-	scenarios.CloseAllServers(servers)
-}

transport/internet/config.pb.go

@@ -19,11 +19,12 @@ const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
 type TransportProtocol int32
 
 const (
-	TransportProtocol_TCP       TransportProtocol = 0
-	TransportProtocol_UDP       TransportProtocol = 1
-	TransportProtocol_MKCP      TransportProtocol = 2
-	TransportProtocol_WebSocket TransportProtocol = 3
-	TransportProtocol_HTTP      TransportProtocol = 4
+	TransportProtocol_TCP          TransportProtocol = 0
+	TransportProtocol_UDP          TransportProtocol = 1
+	TransportProtocol_MKCP         TransportProtocol = 2
+	TransportProtocol_WebSocket    TransportProtocol = 3
+	TransportProtocol_HTTP         TransportProtocol = 4
+	TransportProtocol_DomainSocket TransportProtocol = 5
 )
 
 var TransportProtocol_name = map[int32]string{
@@ -32,13 +33,15 @@ var TransportProtocol_name = map[int32]string{
 	2: "MKCP",
 	3: "WebSocket",
 	4: "HTTP",
+	5: "DomainSocket",
 }
 var TransportProtocol_value = map[string]int32{
-	"TCP":       0,
-	"UDP":       1,
-	"MKCP":      2,
-	"WebSocket": 3,
-	"HTTP":      4,
+	"TCP":          0,
+	"UDP":          1,
+	"MKCP":         2,
+	"WebSocket":    3,
+	"HTTP":         4,
+	"DomainSocket": 5,
 }
 
 func (x TransportProtocol) String() string {
@@ -141,29 +144,30 @@ func init() {
 func init() { proto.RegisterFile("v2ray.com/core/transport/internet/config.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
-	// 379 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x91, 0x4f, 0x4b, 0xf3, 0x40,
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-	0x00, 0xff, 0xff, 0xf3, 0x7b, 0xd5, 0x57, 0x23, 0x03, 0x00, 0x00,
+	// 393 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x91, 0xcf, 0x6a, 0xdb, 0x40,
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+	0x01, 0x2f, 0xc1, 0x2e, 0xb8, 0x52, 0x69, 0x9e, 0x14, 0x13, 0x73, 0x66, 0x38, 0x03, 0xef, 0xcb,
+	0x31, 0xad, 0x51, 0x24, 0x8d, 0x22, 0x89, 0x2b, 0xc5, 0x75, 0x63, 0x18, 0xea, 0xb9, 0xf9, 0x83,
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+	0x07, 0xeb, 0x87, 0x55, 0xf9, 0x75, 0x03, 0xe3, 0x67, 0x87, 0xc1, 0x6f, 0xc1, 0x8a, 0xfd, 0x00,
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+	0xf4, 0xf9, 0x02, 0x63, 0x63, 0x77, 0xf5, 0xbd, 0x39, 0xfd, 0xeb, 0x85, 0xb4, 0x24, 0x7e, 0x95,
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+	0xff, 0xa2, 0xdf, 0xde, 0xa4, 0x35, 0x03, 0x00, 0x00,
 }

transport/internet/config.proto

@@ -14,6 +14,7 @@ enum TransportProtocol {
   MKCP = 2;
   WebSocket = 3;
   HTTP = 4;
+  DomainSocket = 5;
 }
 
 message TransportConfig {

transport/internet/domainsocket/config.go

@@ -0,0 +1,17 @@
+package domainsocket
+
+import "net"
+
+func (c *Config) GetUnixAddr() (*net.UnixAddr, error) {
+	path := c.Path
+	if len(path) == 0 {
+		return nil, newError("empty domain socket path")
+	}
+	if c.Abstract && path[0] != '\x00' {
+		path = "\x00" + path
+	}
+	return &net.UnixAddr{
+		Name: path,
+		Net:  "unix",
+	}, nil
+}

transport/internet/domainsocket/config.pb.go

@@ -15,114 +15,35 @@ var _ = math.Inf
 // proto package needs to be updated.
 const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
 
-// Flag Array
-type DomainSocketSecurityMode int32
-
-const (
-	DomainSocketSecurityMode_Danger DomainSocketSecurityMode = 0
-	// Verfify is Dialer have a pid or ppid match pid file
-	DomainSocketSecurityMode_VerifyPid DomainSocketSecurityMode = 1
-	// Do not tolerance ppid match
-	DomainSocketSecurityMode_DisqualifyPPIDMatch DomainSocketSecurityMode = 2
-	// Enforce Uid Verify On euid
-	DomainSocketSecurityMode_VerifyEUID DomainSocketSecurityMode = 4
-	// Enforce Uid Verify On ruid
-	DomainSocketSecurityMode_VerifyRUID DomainSocketSecurityMode = 8
-	// Does not allow same user exception
-	DomainSocketSecurityMode_DisqualifySameUser DomainSocketSecurityMode = 16
-	// Does not allow root user exception
-	DomainSocketSecurityMode_DisqualifyRootUser DomainSocketSecurityMode = 32
-)
-
-var DomainSocketSecurityMode_name = map[int32]string{
-	0:  "Danger",
-	1:  "VerifyPid",
-	2:  "DisqualifyPPIDMatch",
-	4:  "VerifyEUID",
-	8:  "VerifyRUID",
-	16: "DisqualifySameUser",
-	32: "DisqualifyRootUser",
-}
-var DomainSocketSecurityMode_value = map[string]int32{
-	"Danger":              0,
-	"VerifyPid":           1,
-	"DisqualifyPPIDMatch": 2,
-	"VerifyEUID":          4,
-	"VerifyRUID":          8,
-	"DisqualifySameUser":  16,
-	"DisqualifyRootUser":  32,
-}
-
-func (x DomainSocketSecurityMode) String() string {
-	return proto.EnumName(DomainSocketSecurityMode_name, int32(x))
-}
-func (DomainSocketSecurityMode) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-
-type DomainSocketSecurity struct {
-	// Flag Array Type, User can set an integer to define various configure
-	Mode DomainSocketSecurityMode `protobuf:"varint,1,opt,name=Mode,enum=v2ray.core.internet.domainsocket.DomainSocketSecurityMode" json:"Mode,omitempty"`
-	// Set pid files to be allowed
-	AllowedPid []string `protobuf:"bytes,2,rep,name=AllowedPid" json:"AllowedPid,omitempty"`
-	// Set uids to be allowed, either euid or ruid should match one of following
-	// uids AllowedUid, or user that v2ray is running or root.
-	AllowedUid []uint64 `protobuf:"varint,3,rep,packed,name=AllowedUid" json:"AllowedUid,omitempty"`
-}
-
-func (m *DomainSocketSecurity) Reset()                    { *m = DomainSocketSecurity{} }
-func (m *DomainSocketSecurity) String() string            { return proto.CompactTextString(m) }
-func (*DomainSocketSecurity) ProtoMessage()               {}
-func (*DomainSocketSecurity) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-
-func (m *DomainSocketSecurity) GetMode() DomainSocketSecurityMode {
-	if m != nil {
-		return m.Mode
-	}
-	return DomainSocketSecurityMode_Danger
-}
-
-func (m *DomainSocketSecurity) GetAllowedPid() []string {
-	if m != nil {
-		return m.AllowedPid
-	}
-	return nil
-}
-
-func (m *DomainSocketSecurity) GetAllowedUid() []uint64 {
-	if m != nil {
-		return m.AllowedUid
-	}
-	return nil
-}
-
-type DomainSocketSettings struct {
-	// Path we should listen/dial
-	Path     string                `protobuf:"bytes,1,opt,name=Path" json:"Path,omitempty"`
-	Security *DomainSocketSecurity `protobuf:"bytes,2,opt,name=Security" json:"Security,omitempty"`
+type Config struct {
+	// Path of the domain socket. This overrides the IP/Port parameter from upstream caller.
+	Path string `protobuf:"bytes,1,opt,name=path" json:"path,omitempty"`
+	// Abstract speicifies whether to use abstract namespace or not.
+	// Traditionally Unix domain socket is file system based. Abstract domain socket can be used without acquiring file lock.
+	Abstract bool `protobuf:"varint,2,opt,name=abstract" json:"abstract,omitempty"`
 }
 
-func (m *DomainSocketSettings) Reset()                    { *m = DomainSocketSettings{} }
-func (m *DomainSocketSettings) String() string            { return proto.CompactTextString(m) }
-func (*DomainSocketSettings) ProtoMessage()               {}
-func (*DomainSocketSettings) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+func (m *Config) Reset()                    { *m = Config{} }
+func (m *Config) String() string            { return proto.CompactTextString(m) }
+func (*Config) ProtoMessage()               {}
+func (*Config) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
 
-func (m *DomainSocketSettings) GetPath() string {
+func (m *Config) GetPath() string {
 	if m != nil {
 		return m.Path
 	}
 	return ""
 }
 
-func (m *DomainSocketSettings) GetSecurity() *DomainSocketSecurity {
+func (m *Config) GetAbstract() bool {
 	if m != nil {
-		return m.Security
+		return m.Abstract
 	}
-	return nil
+	return false
 }
 
 func init() {
-	proto.RegisterType((*DomainSocketSecurity)(nil), "v2ray.core.internet.domainsocket.DomainSocketSecurity")
-	proto.RegisterType((*DomainSocketSettings)(nil), "v2ray.core.internet.domainsocket.DomainSocketSettings")
-	proto.RegisterEnum("v2ray.core.internet.domainsocket.DomainSocketSecurityMode", DomainSocketSecurityMode_name, DomainSocketSecurityMode_value)
+	proto.RegisterType((*Config)(nil), "v2ray.core.transport.internet.domainsocket.Config")
 }
 
 func init() {
@@ -130,26 +51,17 @@ func init() {
 }
 
 var fileDescriptor0 = []byte{
-	// 323 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x9c, 0x92, 0x41, 0x4b, 0xf3, 0x40,
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-	0xa3, 0x28, 0x95, 0xb8, 0x10, 0xda, 0x94, 0x58, 0xdc, 0x2b, 0x4a, 0x0b, 0x34, 0x13, 0x3d, 0x4d,
-	0x96, 0x16, 0x09, 0x59, 0x54, 0x2d, 0x5b, 0x95, 0x54, 0xf1, 0xa4, 0x1e, 0xef, 0xbd, 0x7a, 0xb0,
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-	0xec, 0x08, 0xe0, 0x62, 0x3e, 0xc7, 0x27, 0x25, 0x73, 0x2d, 0xc3, 0x46, 0xd4, 0x8c, 0x3b, 0xbc,
-	0x46, 0x6a, 0xff, 0xc7, 0x5a, 0x86, 0xcd, 0xa8, 0x19, 0xfb, 0xbc, 0x46, 0x7a, 0xcf, 0x5f, 0x7b,
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-	0x31, 0xdf, 0xa0, 0x7c, 0x90, 0x0d, 0x05, 0x15, 0xb3, 0xa0, 0xc1, 0xba, 0x00, 0xef, 0xb9, 0xab,
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-	0x02, 0x00, 0x00,
+	// 189 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xb2, 0x2e, 0x33, 0x2a, 0x4a,
+	0xac, 0xd4, 0x4b, 0xce, 0xcf, 0xd5, 0x4f, 0xce, 0x2f, 0x4a, 0xd5, 0x2f, 0x29, 0x4a, 0xcc, 0x2b,
+	0x2e, 0xc8, 0x2f, 0x2a, 0xd1, 0xcf, 0xcc, 0x2b, 0x49, 0x2d, 0xca, 0x4b, 0x2d, 0xd1, 0x4f, 0xc9,
+	0xcf, 0x4d, 0xcc, 0xcc, 0x2b, 0xce, 0x4f, 0xce, 0x4e, 0x2d, 0xd1, 0x4f, 0xce, 0xcf, 0x4b, 0xcb,
+	0x4c, 0xd7, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0xd2, 0x82, 0x69, 0x2e, 0x4a, 0xd5, 0x83, 0x6b,
+	0xd4, 0x83, 0x69, 0xd4, 0x43, 0xd6, 0xa8, 0x64, 0xc1, 0xc5, 0xe6, 0x0c, 0xd6, 0x2b, 0x24, 0xc4,
+	0xc5, 0x52, 0x90, 0x58, 0x92, 0x21, 0xc1, 0xa8, 0xc0, 0xa8, 0xc1, 0x19, 0x04, 0x66, 0x0b, 0x49,
+	0x71, 0x71, 0x24, 0x26, 0x15, 0x97, 0x14, 0x25, 0x26, 0x97, 0x48, 0x30, 0x29, 0x30, 0x6a, 0x70,
+	0x04, 0xc1, 0xf9, 0x4e, 0xb9, 0x5c, 0x20, 0xe7, 0xe9, 0x11, 0x6f, 0x57, 0x00, 0x63, 0x14, 0x0f,
+	0x32, 0x7f, 0x15, 0x93, 0x56, 0x98, 0x51, 0x50, 0x62, 0xa5, 0x9e, 0x33, 0x48, 0x73, 0x08, 0x5c,
+	0xb3, 0x27, 0x4c, 0xb3, 0x0b, 0x58, 0x71, 0x30, 0x58, 0x71, 0x12, 0x1b, 0xd8, 0x6f, 0xc6, 0x80,
+	0x00, 0x00, 0x00, 0xff, 0xff, 0xb8, 0xb3, 0xe6, 0x90, 0x1a, 0x01, 0x00, 0x00,
 }

transport/internet/domainsocket/config.proto

@@ -1,42 +1,15 @@
 syntax = "proto3";
 
-package v2ray.core.internet.domainsocket;
-
+package v2ray.core.transport.internet.domainsocket;
+option csharp_namespace = "V2Ray.Core.Transport.Internet.DomainSocket";
 option go_package = "domainsocket";
-
-//Flag Array
-enum DomainSocketSecurityMode {
-  Danger = 0;
-  //Verfify is Dialer have a pid or ppid match pid file
-  VerifyPid = 1;
-  //Do not tolerance ppid match
-  DisqualifyPPIDMatch = 2;
-
-  //Enforce Uid Verify On euid
-  VerifyEUID = 4;
-
-  //Enforce Uid Verify On ruid
-  VerifyRUID = 8;
-
-  //Does not allow same user exception
-  DisqualifySameUser = 16;
-
-  //Does not allow root user exception
-  DisqualifyRootUser = 32;
-}
-
-message DomainSocketSecurity{
- //Flag Array Type, User can set an integer to define various configure
- DomainSocketSecurityMode Mode = 1;
- //Set pid files to be allowed
- repeated string AllowedPid = 2;
- //Set uids to be allowed, either euid or ruid should match one of following
- //uids AllowedUid, or user that v2ray is running or root.
- repeated uint64 AllowedUid = 3;
-}
-
-message DomainSocketSettings{
- //Path we should listen/dial
- string Path = 1;
- DomainSocketSecurity Security = 2;
+option java_package = "com.v2ray.core.transport.internet.domainsocket";
+option java_multiple_files = true;
+
+message Config {
+ // Path of the domain socket. This overrides the IP/Port parameter from upstream caller.
+ string path = 1;
+ // Abstract speicifies whether to use abstract namespace or not.
+ // Traditionally Unix domain socket is file system based. Abstract domain socket can be used without acquiring file lock. 
+ bool abstract = 2;
 }

transport/internet/domainsocket/dial.go

@@ -2,17 +2,44 @@ package domainsocket
 
 import (
 	"context"
-	"net"
+
+	"v2ray.com/core/common"
+	"v2ray.com/core/common/net"
+	"v2ray.com/core/transport/internet"
+	"v2ray.com/core/transport/internet/tls"
 )
 
-func DialDS(ctx context.Context, path string) (*net.UnixConn, error) {
-	resolvedAddress, err := net.ResolveUnixAddr("unix", path)
+func getSettingsFromContext(ctx context.Context) *Config {
+	rawSettings := internet.TransportSettingsFromContext(ctx)
+	if rawSettings == nil {
+		return nil
+	}
+	return rawSettings.(*Config)
+}
+
+func Dial(ctx context.Context, dest net.Destination) (internet.Connection, error) {
+	settings := getSettingsFromContext(ctx)
+	if settings == nil {
+		return nil, newError("domain socket settings is not specified.").AtError()
+	}
+
+	addr, err := settings.GetUnixAddr()
 	if err != nil {
 		return nil, err
 	}
-	dialedUnix, err := net.DialUnix("unix", nil, resolvedAddress)
+
+	conn, err := net.DialUnix("unix", nil, addr)
 	if err != nil {
-		return nil, err
+		return nil, newError("failed to dial unix: ", settings.Path).Base(err).AtWarning()
+	}
+
+	if config := tls.ConfigFromContext(ctx); config != nil {
+		return tls.Client(conn, config.GetTLSConfig(tls.WithDestination(dest))), nil
 	}
-	return dialedUnix, nil
+
+	return conn, nil
+}
+
+func init() {
+	common.Must(internet.RegisterTransportDialer(internet.TransportProtocol_DomainSocket, Dial))
 }

transport/internet/domainsocket/listener.go

@@ -2,216 +2,121 @@ package domainsocket
 
 import (
 	"context"
-	"net"
+	gotls "crypto/tls"
 	"os"
+	"strings"
 	"syscall"
-	"time"
 
-	"v2ray.com/core/common/bitmask"
+	"v2ray.com/core/common/net"
+	"v2ray.com/core/transport/internet"
+	"v2ray.com/core/transport/internet/tls"
 )
 
 type Listener struct {
-	ln           net.Listener
-	listenerChan chan<- net.Conn
-	ctx          context.Context
-	path         string
-	lockfile     *os.File
-	state        bitmask.Byte
-	cancal       func()
+	addr      *net.UnixAddr
+	ln        net.Listener
+	tlsConfig *gotls.Config
+	config    *Config
+	addConn   internet.ConnHandler
+	locker    *fileLocker
 }
 
-const (
-	STATE_UNDEFINED   = 0
-	STATE_INITIALIZED = 1 << iota
-	STATE_LOWERUP     = 1 << iota
-	STATE_UP          = 1 << iota
-	STATE_TAINT       = 1 << iota
-)
-
-func ListenDS(ctx context.Context, path string) (*Listener, error) {
-
-	vln := &Listener{path: path, state: STATE_INITIALIZED, ctx: ctx}
-	return vln, nil
-}
-
-func (ls *Listener) Down() error {
-	var err error
-	if !ls.state.Has(STATE_LOWERUP | STATE_UP) {
-		err = newError(ls.state).Base(newError("Invalid State:Down"))
-		if ___DEBUG_PANIC_WHEN_ENCOUNTED_IMPOSSIBLE_ERROR {
-			panic(err)
-		}
-		return err
+func Listen(ctx context.Context, address net.Address, port net.Port, handler internet.ConnHandler) (internet.Listener, error) {
+	settings := getSettingsFromContext(ctx)
+	if settings == nil {
+		return nil, newError("domain socket settings not specified.")
 	}
 
-	ls.cancal()
-	closeerr := ls.ln.Close()
-	var lockerr error
-	if isUnixDomainSocketFileSystemBased(ls.path) {
-		lockerr = giveupLock(ls.lockfile)
-	}
-	if closeerr != nil && lockerr != nil {
-		if ___DEBUG_PANIC_WHEN_ERROR_UNPROPAGATEABLE {
-			panic(closeerr.Error() + lockerr.Error())
-		}
+	addr, err := settings.GetUnixAddr()
+	if err != nil {
+		return nil, err
 	}
 
-	if closeerr != nil {
-		return newError("Cannot Close Unix domain socket listener").Base(closeerr)
-	}
-	if lockerr != nil {
-		return newError("Cannot release lock for Unix domain socket listener").Base(lockerr)
+	unixListener, err := net.ListenUnix("unix", addr)
+	if err != nil {
+		return nil, newError("failed to listen domain socket").Base(err).AtWarning()
 	}
-	ls.state.Clear(STATE_LOWERUP | STATE_UP)
-	return nil
-}
 
-//LowerUP Setup systen level Listener
-func (ls *Listener) LowerUP() error {
-	var err error
-
-	if !ls.state.Has(STATE_INITIALIZED) || ls.state.Has(STATE_LOWERUP) {
-		err = newError(ls.state).Base(newError("Invalid State:LowerUP"))
-		if ___DEBUG_PANIC_WHEN_ENCOUNTED_IMPOSSIBLE_ERROR {
-			panic(err)
-		}
-		return err
+	ln := &Listener{
+		addr:    addr,
+		ln:      unixListener,
+		config:  settings,
+		addConn: handler,
 	}
-	
-	//If the unix domain socket is filesystem based, an file lock must be used to claim the right for listening on respective file.
-	//https://gavv.github.io/blog/unix-socket-reuse/
-	if isUnixDomainSocketFileSystemBased(ls.path) && !___DEBUG_IGNORE_FLOCK {
-		ls.lockfile, err = acquireLock(ls.path + ".lock")
-		if err != nil {
-			newError(err).AtDebug().WriteToLog()
-			return newError("Unable to acquire lock for filesystem based unix domain socket").Base(err)
-		}
 
-		err = cleansePath(ls.path)
-		if err != nil {
-			return newError("Unable to cleanse path for the creation of unix domain socket").Base(err)
+	if !settings.Abstract {
+		ln.locker = &fileLocker{
+			path: settings.Path + ".lock",
+		}
+		if err := ln.locker.Acquire(); err != nil {
+			unixListener.Close()
+			return nil, err
 		}
 	}
 
-	addr := new(net.UnixAddr)
-	addr.Name = ls.path
-	addr.Net = "unix"
-	li, err := net.ListenUnix("unix", addr)
-	ls.ln = li
-	if err != nil {
-		return newError("Unable to listen unix domain socket").Base(err)
+	if config := tls.ConfigFromContext(ctx); config != nil {
+		ln.tlsConfig = config.GetTLSConfig()
 	}
 
-	ls.state.Set(STATE_LOWERUP)
+	go ln.run()
 
-	return nil
+	return ln, nil
 }
 
-func (ls *Listener) UP(listener chan<- net.Conn, allowkick bool) error {
-	var err error
-	if !ls.state.Has(STATE_INITIALIZED|STATE_LOWERUP) || (ls.state.Has(STATE_UP) && !allowkick) {
-		err = newError(ls.state).Base(newError("Invalid State:UP"))
-		if ___DEBUG_PANIC_WHEN_ENCOUNTED_IMPOSSIBLE_ERROR {
-			panic(err)
-		}
-		return err
-	}
-	ls.listenerChan = listener
-	if !ls.state.Has(STATE_UP) {
-		cctx, cancel := context.WithCancel(ls.ctx)
-		ls.cancal = cancel
-		go ls.uploop(cctx)
-	}
-	ls.state.Set(STATE_UP)
-	return nil
+func (ln *Listener) Addr() net.Addr {
+	return ln.addr
 }
 
-func (ls *Listener) uploop(cctx context.Context) {
-	var lasterror error
-	errortolerance := 5
-	for {
-		if cctx.Err() != nil {
-			close(ls.listenerChan)
-			return
-		}
-		conn, err := ls.ln.Accept()
+func (ln *Listener) Close() error {
+	ln.locker.Release()
+	return ln.ln.Close()
+}
 
+func (ln *Listener) run() {
+	for {
+		conn, err := ln.ln.Accept()
 		if err != nil {
-			newError("Cannot Accept socket from listener").Base(err).AtDebug().WriteToLog()
-			//Guard against too many open file error
-			if err == lasterror {
-				errortolerance--
-				if errortolerance == 0 {
-					newError("unix domain socket melt down as the error is repeating").Base(err).AtError().WriteToLog()
-					ls.cancal()
-				}
-				newError("unix domain socket listener is throttling accept as the error is repeating").Base(err).AtError().WriteToLog()
-				time.Sleep(time.Second * 5)
+			if strings.Contains(err.Error(), "closed") {
+				break
 			}
-			lasterror = err
+			newError("failed to accepted raw connections").Base(err).AtWarning().WriteToLog()
+			continue
 		}
 
-		ls.listenerChan <- conn
+		if ln.tlsConfig != nil {
+			conn = tls.Server(conn, ln.tlsConfig)
+		}
+
+		ln.addConn(internet.Connection(conn))
 	}
 }
 
-func isUnixDomainSocketFileSystemBased(path string) bool {
-	//No Branching
-	return path[0] != 0
+type fileLocker struct {
+	path string
+	file *os.File
 }
 
-func acquireLock(lockfilepath string) (*os.File, error) {
-	f, err := os.Create(lockfilepath)
+func (fl *fileLocker) Acquire() error {
+	f, err := os.Create(fl.path)
 	if err != nil {
-		newError(err).AtDebug().WriteToLog()
-		return f, err
+		return err
 	}
-	err = syscall.Flock(int(f.Fd()), syscall.LOCK_EX)
-	if err != nil {
-		newError(err).AtDebug().WriteToLog()
-		err = f.Close()
-		if err != nil {
-			if ___DEBUG_PANIC_WHEN_ENCOUNTED_IMPOSSIBLE_ERROR {
-				panic(err)
-			}
-			newError(err).AtDebug().WriteToLog()
-		}
-		return nil, err
+	if err := syscall.Flock(int(f.Fd()), syscall.LOCK_EX); err != nil {
+		f.Close()
+		return newError("failed to lock file: ", fl.path).Base(err)
 	}
-	return nil, err
+	fl.file = f
+	return nil
 }
 
-func giveupLock(locker *os.File) error {
-	err := syscall.Flock(int(locker.Fd()), syscall.LOCK_UN)
-	if err != nil {
-		closeerr := locker.Close()
-		if err != nil {
-			if ___DEBUG_PANIC_WHEN_ERROR_UNPROPAGATEABLE {
-				panic(closeerr)
-			}
-			newError(closeerr).AtDebug().WriteToLog()
-		}
-		newError(err).AtDebug().WriteToLog()
-		return err
+func (fl *fileLocker) Release() {
+	if err := syscall.Flock(int(fl.file.Fd()), syscall.LOCK_UN); err != nil {
+		newError("failed to unlock file: ", fl.path).Base(err).WriteToLog()
 	}
-	closeerr := locker.Close()
-	if closeerr != nil {
-		newError(closeerr).AtDebug().WriteToLog()
-		return closeerr
+	if err := fl.file.Close(); err != nil {
+		newError("failed to close file: ", fl.path).Base(err).WriteToLog()
 	}
-	return closeerr
-}
-
-func cleansePath(path string) error {
-	_, err := os.Stat(path)
-	if err != nil {
-		return nil
+	if err := os.Remove(fl.path); err != nil {
+		newError("failed to remove file: ", fl.path).Base(err).WriteToLog()
 	}
-	err = os.Remove(path)
-	return err
 }
-
-//DEBUG CONSTS
-const ___DEBUG_IGNORE_FLOCK = false
-const ___DEBUG_PANIC_WHEN_ERROR_UNPROPAGATEABLE = false
-const ___DEBUG_PANIC_WHEN_ENCOUNTED_IMPOSSIBLE_ERROR = false

transport/internet/domainsocket/listener_test.go

@@ -2,131 +2,80 @@ package domainsocket_test
 
 import (
 	"context"
-	"net"
+	"runtime"
 	"testing"
-	"time"
 
-	"v2ray.com/core/transport/internet/domainsocket"
-	"v2ray.com/ext/assert"
+	"v2ray.com/core/common"
+	"v2ray.com/core/common/buf"
+	"v2ray.com/core/common/net"
+	"v2ray.com/core/transport/internet"
+	. "v2ray.com/core/transport/internet/domainsocket"
+	. "v2ray.com/ext/assert"
 )
 
-func TestListenAbstract(t *testing.T) {
-	listener, err := domainsocket.ListenDS(context.Background(), "\x00V2RayDimension/TestListenAbstract")
-	asrt := assert.With(t)
-	asrt(err, assert.IsNil)
-	asrt(listener, assert.IsNotNil)
-}
-
 func TestListen(t *testing.T) {
-	listener, err := domainsocket.ListenDS(context.Background(), "/tmp/ts3")
-	asrt := assert.With(t)
-	asrt(err, assert.IsNil)
-	asrt(listener, assert.IsNotNil)
-	errolu := listener.LowerUP()
-	asrt(errolu, assert.IsNil)
-	ctx, fin := context.WithCancel(context.Background())
-	chi := make(chan net.Conn, 2)
-	go func() {
-		for {
-			select {
-			case conn := <-chi:
-				test := make([]byte, 256)
-				nc, errc := conn.Read(test)
-				asrt(errc, assert.IsNil)
-				conn.Write(test[:nc])
-				time.Sleep(time.Second)
-				conn.Close()
-			case <-ctx.Done():
-				return
-			}
-		}
-	}()
-	listener.UP(chi, false)
-	con, erro := net.Dial("unix", "/tmp/ts3")
-	asrt(erro, assert.IsNil)
-	b := []byte("ABC")
-	c := []byte("XXX")
-	_, erron := con.Write(b)
-	asrt(erron, assert.IsNil)
-	con.Read(c)
-	con.Close()
-	asrt(b[0]-c[0] == 0, assert.IsTrue)
-	fin()
-	listener.Down()
-}
+	assert := With(t)
+
+	ctx := internet.ContextWithTransportSettings(context.Background(), &Config{
+		Path: "/tmp/ts3",
+	})
+	listener, err := Listen(ctx, nil, net.Port(0), func(conn internet.Connection) {
+		defer conn.Close()
+
+		b := buf.New()
+		common.Must(b.Reset(buf.ReadFrom(conn)))
+		assert(b.String(), Equals, "Request")
+
+		common.Must2(conn.Write([]byte("Response")))
+	})
+	assert(err, IsNil)
+	defer listener.Close()
+
+	conn, err := Dial(ctx, net.Destination{})
+	assert(err, IsNil)
+	defer conn.Close()
+
+	_, err = conn.Write([]byte("Request"))
+	assert(err, IsNil)
+
+	b := buf.New()
+	common.Must(b.Reset(buf.ReadFrom(conn)))
 
-func TestListenA(t *testing.T) {
-	listener, err := domainsocket.ListenDS(context.Background(), "\x00/tmp/ts2")
-	asrt := assert.With(t)
-	asrt(err, assert.IsNil)
-	asrt(listener, assert.IsNotNil)
-	errolu := listener.LowerUP()
-	asrt(errolu, assert.IsNil)
-	ctx, fin := context.WithCancel(context.Background())
-	chi := make(chan net.Conn, 2)
-	go func() {
-		for {
-			select {
-			case conn := <-chi:
-				test := make([]byte, 256)
-				nc, errc := conn.Read(test)
-				asrt(errc, assert.IsNil)
-				conn.Write(test[:nc])
-				time.Sleep(time.Second)
-				conn.Close()
-			case <-ctx.Done():
-				return
-			}
-		}
-	}()
-	listener.UP(chi, false)
-	con, erro := net.Dial("unix", "\x00/tmp/ts2")
-	asrt(erro, assert.IsNil)
-	b := []byte("ABC")
-	c := []byte("XXX")
-	_, erron := con.Write(b)
-	asrt(erron, assert.IsNil)
-	con.Read(c)
-	con.Close()
-	asrt(b[0]-c[0] == 0, assert.IsTrue)
-	fin()
-	listener.Down()
+	assert(b.String(), Equals, "Response")
 }
 
-func TestListenDial(t *testing.T) {
-	listener, err := domainsocket.ListenDS(context.Background(), "\x00/tmp/ts")
-	asrt := assert.With(t)
-	asrt(err, assert.IsNil)
-	asrt(listener, assert.IsNotNil)
-	errolu := listener.LowerUP()
-	asrt(errolu, assert.IsNil)
-	ctx, fin := context.WithCancel(context.Background())
-	chi := make(chan net.Conn, 2)
-	go func() {
-		for {
-			select {
-			case conn := <-chi:
-				test := make([]byte, 256)
-				nc, errc := conn.Read(test)
-				asrt(errc, assert.IsNil)
-				conn.Write(test[:nc])
-				time.Sleep(time.Second)
-				conn.Close()
-			case <-ctx.Done():
-				return
-			}
-		}
-	}()
-	listener.UP(chi, false)
-	con, erro := domainsocket.DialDS(context.Background(), "\x00/tmp/ts")
-	asrt(erro, assert.IsNil)
-	b := []byte("ABC")
-	c := []byte("XXX")
-	_, erron := con.Write(b)
-	asrt(erron, assert.IsNil)
-	con.Read(c)
-	con.Close()
-	asrt(b[0]-c[0] == 0, assert.IsTrue)
-	fin()
-	listener.Down()
+func TestListenAbstract(t *testing.T) {
+	if runtime.GOOS != "linux" {
+		return
+	}
+
+	assert := With(t)
+
+	ctx := internet.ContextWithTransportSettings(context.Background(), &Config{
+		Path:     "/tmp/ts3",
+		Abstract: true,
+	})
+	listener, err := Listen(ctx, nil, net.Port(0), func(conn internet.Connection) {
+		defer conn.Close()
+
+		b := buf.New()
+		common.Must(b.Reset(buf.ReadFrom(conn)))
+		assert(b.String(), Equals, "Request")
+
+		common.Must2(conn.Write([]byte("Response")))
+	})
+	assert(err, IsNil)
+	defer listener.Close()
+
+	conn, err := Dial(ctx, net.Destination{})
+	assert(err, IsNil)
+	defer conn.Close()
+
+	_, err = conn.Write([]byte("Request"))
+	assert(err, IsNil)
+
+	b := buf.New()
+	common.Must(b.Reset(buf.ReadFrom(conn)))
+
+	assert(b.String(), Equals, "Response")
 }

transport/internet/tcp/hub.go

@@ -30,8 +30,8 @@ func ListenTCP(ctx context.Context, address net.Address, port net.Port, handler
 		return nil, err
 	}
 	newError("listening TCP on ", address, ":", port).WithContext(ctx).WriteToLog()
-	networkSettings := internet.TransportSettingsFromContext(ctx)
-	tcpSettings := networkSettings.(*Config)
+
+	tcpSettings := getTCPSettingsFromContext(ctx)
 
 	l := &Listener{
 		listener: listener,