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Update UoT protocol

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世界 2023-03-15 14:42:32 +08:00
parent f1e35ad9d4
commit f57ec13880
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GPG key ID: CD109927C34A63C4
7 changed files with 66 additions and 38 deletions
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24
proxy/shadowsocks_2022/outbound.go
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@ -11,7 +11,6 @@ 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"
@ -29,10 +28,10 @@ func init() {
}
type Outbound struct {
ctx context.Context
server net.Destination
method shadowsocks.Method
uot bool
ctx context.Context
server net.Destination
method shadowsocks.Method
uotClient *uot.Client
}
func NewClient(ctx context.Context, config *ClientConfig) (*Outbound, error) {
@ -43,7 +42,6 @@ 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 == "" {
@ -57,6 +55,9 @@ func NewClient(ctx context.Context, config *ClientConfig) (*Outbound, error) {
} else {
return nil, newError("unknown method ", config.Method)
}
if config.UdpOverTcp {
o.uotClient = &uot.Client{Version: uint8(config.UdpOverTcpVersion)}
}
return o, nil
}
@ -77,7 +78,7 @@ 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
if o.uot {
if o.uotClient != nil {
serverDestination.Network = net.Network_TCP
} else {
serverDestination.Network = network
@ -149,9 +150,12 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
}
}
if o.uot {
serverConn := o.method.DialEarlyConn(connection, M.Socksaddr{Fqdn: uot.UOTMagicAddress})
return returnError(bufio.CopyPacketConn(ctx, packetConn, uot.NewClientConn(serverConn)))
if o.uotClient != nil {
uConn, err := o.uotClient.DialEarlyConn(o.method.DialEarlyConn(connection, uot.RequestDestination(o.uotClient.Version)), false, toSocksaddr(destination))
if err != nil {
return err
}
return returnError(bufio.CopyPacketConn(ctx, packetConn, uConn))
} else {
serverConn := o.method.DialPacketConn(connection)
return returnError(bufio.CopyPacketConn(ctx, packetConn, serverConn))