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Add udp over tcp support for shadowsocks-2022

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This commit is contained in:
世界 2022-06-01 11:12:43 +08:00
parent 6f93ef7736
commit c3505632fd
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GPG key ID: CD109927C34A63C4
14 changed files with 119 additions and 33 deletions
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38
proxy/shadowsocks_2022/config.pb.go
View file

@ -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"`
Port uint32 `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
Method string `protobuf:"bytes,3,opt,name=method,proto3" json:"method,omitempty"`
Key string `protobuf:"bytes,4,opt,name=key,proto3" json:"key,omitempty"`
Address *net.IPOrDomain `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
Port uint32 `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
Method string `protobuf:"bytes,3,opt,name=method,proto3" json:"method,omitempty"`
Key string `protobuf:"bytes,4,opt,name=key,proto3" json:"key,omitempty"`
UdpOverTcp bool `protobuf:"varint,5,opt,name=udp_over_tcp,json=udpOverTcp,proto3" json:"udp_over_tcp,omitempty"`
}
func (x *ClientConfig) Reset() {
@ -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{
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@ -348,15 +356,17 @@ var file_proxy_shadowsocks_2022_config_proto_rawDesc = []byte{
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}
var (

1
proxy/shadowsocks_2022/config.proto
View file

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

13
proxy/shadowsocks_2022/inbound.go
View file

@ -10,6 +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"
@ -74,20 +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()
}
}
}
@ -147,6 +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()
}

13
proxy/shadowsocks_2022/inbound_multi.go
View file

@ -10,6 +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"
@ -93,20 +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()
}
}
}
@ -170,5 +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()
}

19
proxy/shadowsocks_2022/outbound.go
View file

@ -13,7 +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"
@ -32,6 +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) {
@ -42,6 +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 == "" {
@ -75,7 +79,11 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
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)
@ -143,7 +151,12 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
}
}
serverConn := o.method.DialPacketConn(connection)
return returnError(bufio.CopyPacketConn(ctx, packetConn, serverConn))
if o.uot {
serverConn := o.method.DialEarlyConn(connection, M.Socksaddr{Fqdn: uot.UOTMagicAddress})
return returnError(bufio.CopyPacketConn(ctx, packetConn, uot.NewClientConn(serverConn)))
} else {
serverConn := o.method.DialPacketConn(connection)
return returnError(bufio.CopyPacketConn(ctx, packetConn, serverConn))
}
}
}

4
proxy/shadowsocks_2022/shadowsocks_2022.go
View file

@ -3,10 +3,10 @@
package shadowsocks_2022
import (
"errors"
"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/buf"
"github.com/xtls/xray-core/common/net"
@ -140,7 +140,7 @@ func (w *packetConnWrapper) Close() error {
}
func returnError(err error) error {
if errors.Is(err, io.EOF) {
if E.IsClosed(err) {
return nil
}
return err