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Collect stats and possible padding (previously Vision Reader Writer) to all traffic

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This commit is contained in:
yuhan6665 2024-04-17 16:09:01 -04:00
parent 9b48673725
commit 68881b531e
4 changed files with 21 additions and 28 deletions
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15
proxy/proxy.go
View file

@ -142,8 +142,8 @@ type OutboundState struct {
UplinkWriterDirectCopy bool
}
func NewTrafficState(userUUID []byte) *TrafficState {
return &TrafficState{
func NewTrafficState(userUUID []byte, flow string) *TrafficState {
var state = TrafficState{
UserUUID: userUUID,
StartTime: time.Time{},
ByteSent: 0,
@ -157,26 +157,29 @@ func NewTrafficState(userUUID []byte) *TrafficState {
Cipher: 0,
RemainingServerHello: -1,
Inbound: InboundState{
WithinPaddingBuffers: true,
UplinkReaderDirectCopy: false,
RemainingCommand: -1,
RemainingContent: -1,
RemainingPadding: -1,
CurrentCommand: 0,
IsPadding: true,
DownlinkWriterDirectCopy: false,
},
Outbound: OutboundState{
WithinPaddingBuffers: true,
DownlinkReaderDirectCopy: false,
RemainingCommand: -1,
RemainingContent: -1,
RemainingPadding: -1,
CurrentCommand: 0,
IsPadding: true,
UplinkWriterDirectCopy: false,
},
}
if len(flow) > 0 {
state.Inbound.IsPadding = true;
state.Outbound.IsPadding = true;
state.Inbound.WithinPaddingBuffers = true;
state.Outbound.WithinPaddingBuffers = true;
}
return &state
}
// VisionReader is used to read xtls vision protocol

16
proxy/vless/encoding/addons.go
View file

@ -55,23 +55,21 @@ func DecodeHeaderAddons(buffer *buf.Buffer, reader io.Reader) (*Addons, error) {
}
// EncodeBodyAddons returns a Writer that auto-encrypt content written by caller.
func EncodeBodyAddons(writer io.Writer, request *protocol.RequestHeader, requestAddons *Addons, state *proxy.TrafficState, isUplink bool, context context.Context) buf.Writer {
func EncodeBodyAddons(writer buf.Writer, request *protocol.RequestHeader, requestAddons *Addons, state *proxy.TrafficState, isUplink bool, context context.Context) buf.Writer {
w := proxy.NewVisionWriter(writer, state, isUplink, context)
if request.Command == protocol.RequestCommandUDP {
return NewMultiLengthPacketWriter(writer.(buf.Writer))
}
w := buf.NewWriter(writer)
if requestAddons.Flow == vless.XRV {
w = proxy.NewVisionWriter(w, state, isUplink, context)
return NewMultiLengthPacketWriter(w)
}
return w
}
// DecodeBodyAddons returns a Reader from which caller can fetch decrypted body.
func DecodeBodyAddons(reader io.Reader, request *protocol.RequestHeader, addons *Addons) buf.Reader {
func DecodeBodyAddons(reader io.Reader, request *protocol.RequestHeader, addons *Addons, state *proxy.TrafficState, isUplink bool, context context.Context) buf.Reader {
r := proxy.NewVisionReader(buf.NewReader(reader), state, isUplink, context)
if request.Command == protocol.RequestCommandUDP {
return NewLengthPacketReader(reader)
return NewLengthPacketReader(&buf.BufferedReader{Reader: r})
}
return buf.NewReader(reader)
return r
}
func NewMultiLengthPacketWriter(writer buf.Writer) *MultiLengthPacketWriter {

5
proxy/vless/inbound/inbound.go
View file

@ -531,18 +531,17 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
serverReader := link.Reader // .(*pipe.Reader)
serverWriter := link.Writer // .(*pipe.Writer)
trafficState := proxy.NewTrafficState(account.ID.Bytes())
trafficState := proxy.NewTrafficState(account.ID.Bytes(), account.Flow)
postRequest := func() error {
defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
// default: clientReader := reader
clientReader := encoding.DecodeBodyAddons(reader, request, requestAddons)
clientReader := encoding.DecodeBodyAddons(reader, request, requestAddons, trafficState, true, ctx)
var err error
if requestAddons.Flow == vless.XRV {
ctx1 := session.ContextWithInbound(ctx, nil) // TODO enable splice
clientReader = proxy.NewVisionReader(clientReader, trafficState, true, ctx1)
err = encoding.XtlsRead(clientReader, serverWriter, timer, connection, input, rawInput, trafficState, nil, true, ctx1)
} else {
// from clientReader.ReadMultiBuffer to serverWriter.WriteMultiBuffer

13
proxy/vless/outbound/outbound.go
View file

@ -179,7 +179,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
clientReader := link.Reader // .(*pipe.Reader)
clientWriter := link.Writer // .(*pipe.Writer)
trafficState := proxy.NewTrafficState(account.ID.Bytes())
trafficState := proxy.NewTrafficState(account.ID.Bytes(), account.Flow)
if request.Command == protocol.RequestCommandUDP && (requestAddons.Flow == vless.XRV || (h.cone && request.Port != 53 && request.Port != 443)) {
request.Command = protocol.RequestCommandMux
request.Address = net.DomainAddress("v1.mux.cool")
@ -260,16 +260,9 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
}
// default: serverReader := buf.NewReader(conn)
serverReader := encoding.DecodeBodyAddons(conn, request, responseAddons)
if requestAddons.Flow == vless.XRV {
serverReader = proxy.NewVisionReader(serverReader, trafficState, false, ctx)
}
serverReader := encoding.DecodeBodyAddons(conn, request, responseAddons, trafficState, false, ctx)
if request.Command == protocol.RequestCommandMux && request.Port == 666 {
if requestAddons.Flow == vless.XRV {
serverReader = xudp.NewPacketReader(&buf.BufferedReader{Reader: serverReader})
} else {
serverReader = xudp.NewPacketReader(conn)
}
serverReader = xudp.NewPacketReader(&buf.BufferedReader{Reader: serverReader})
}
if requestAddons.Flow == vless.XRV {