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Code Issues Releases Wiki Activity

fix buffer usage in VMess

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This commit is contained in:
Darien Raymond 2016-01-04 12:01:32 +00:00
parent 5df40c31f0
commit 27b521d2aa
3 changed files with 8 additions and 17 deletions
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2
proxy/vmess/inbound/inbound.go
View File

@ -123,6 +123,7 @@ func (this *VMessInboundHandler) HandleConnection(connection *net.TCPConn) error
// Optimize for small response packet
buffer := alloc.NewLargeBuffer().Clear()
defer buffer.Release()
buffer.AppendBytes(request.ResponseHeader[0] ^ request.ResponseHeader[1])
buffer.AppendBytes(request.ResponseHeader[2] ^ request.ResponseHeader[3])
buffer.AppendBytes(byte(0), byte(0))
@ -131,7 +132,6 @@ func (this *VMessInboundHandler) HandleConnection(connection *net.TCPConn) error
buffer.Append(data.Value)
data.Release()
responseWriter.Write(buffer.Value)
buffer.Release()
go handleOutput(request, responseWriter, output, &writeFinish)
writeFinish.Lock()
}

13
proxy/vmess/outbound/outbound.go
View File

@ -39,7 +39,7 @@ func (this *VMessOutboundHandler) Dispatch(firstPacket v2net.Packet, ray ray.Out
}
buffer := alloc.NewSmallBuffer()
defer buffer.Release()
defer buffer.Release() // Buffer is released after communication finishes.
v2net.ReadAllBytes(rand.Reader, buffer.Value[:36]) // 16 + 16 + 4
request.RequestIV = buffer.Value[:16]
request.RequestKey = buffer.Value[16:32]
@ -185,17 +185,6 @@ func handleResponse(conn net.Conn, request *protocol.VMessRequest, output chan<-
return
}
type VMessOutboundHandlerFactory struct {
}
func (this *VMessOutboundHandlerFactory) Create(space app.Space, rawConfig interface{}) (proxy.OutboundConnectionHandler, error) {
vOutConfig := rawConfig.(Config)
return &VMessOutboundHandler{
space: space,
receiverManager: NewReceiverManager(vOutConfig.Receivers()),
}, nil
}
func init() {
if err := internal.RegisterOutboundConnectionHandlerFactory("vmess", func(space app.Space, rawConfig interface{}) (proxy.OutboundConnectionHandler, error) {
vOutConfig := rawConfig.(Config)

10
proxy/vmess/protocol/vmess.go
View File

@ -68,6 +68,7 @@ func NewVMessRequestReader(vUserSet user.UserSet) *VMessRequestReader {
// Read reads a VMessRequest from a byte stream.
func (this *VMessRequestReader) Read(reader io.Reader) (*VMessRequest, error) {
buffer := alloc.NewSmallBuffer()
defer buffer.Release()
nBytes, err := v2net.ReadAllBytes(reader, buffer.Value[:vmess.IDBytesLen])
if err != nil {
@ -102,9 +103,9 @@ func (this *VMessRequestReader) Read(reader io.Reader) (*VMessRequest, error) {
return nil, proxy.InvalidProtocolVersion
}
request.RequestIV = buffer.Value[1:17] // 16 bytes
request.RequestKey = buffer.Value[17:33] // 16 bytes
request.ResponseHeader = buffer.Value[33:37] // 4 bytes
request.RequestIV = append([]byte(nil), buffer.Value[1:17]...) // 16 bytes
request.RequestKey = append([]byte(nil), buffer.Value[17:33]...) // 16 bytes
request.ResponseHeader = append([]byte(nil), buffer.Value[33:37]...) // 4 bytes
request.Command = buffer.Value[37]
request.Port = v2net.PortFromBytes(buffer.Value[38:40])
@ -135,7 +136,8 @@ func (this *VMessRequestReader) Read(reader io.Reader) (*VMessRequest, error) {
return nil, err
}
bufferLen += 1 + domainLength
request.Address = v2net.DomainAddress(string(buffer.Value[42 : 42+domainLength]))
domainBytes := append([]byte(nil), buffer.Value[42 : 42+domainLength]...)
request.Address = v2net.DomainAddress(string(domainBytes))
}
_, err = v2net.ReadAllBytes(decryptor, buffer.Value[bufferLen:bufferLen+4])