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more informational error

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Darien Raymond 2018-03-26 16:56:19 +02:00
parent 1dadd54502
commit e44394ade5
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GPG Key ID: 7251FFA14BB18169
1 changed files with 10 additions and 5 deletions
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15
proxy/socks/protocol.go
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@ -135,16 +135,21 @@ func (s *ServerSession) Handshake(reader io.Reader, writer io.Writer) (*protocol
} }
cmd := buffer.Byte(1) cmd := buffer.Byte(1)
if cmd == cmdTCPBind || (cmd == cmdUDPPort && !s.config.UdpEnabled) {
writeSocks5Response(writer, statusCmdNotSupport, net.AnyIP, net.Port(0))
return nil, newError("unsupported command: ", cmd)
}
switch cmd { switch cmd {
case cmdTCPConnect: case cmdTCPConnect:
request.Command = protocol.RequestCommandTCP request.Command = protocol.RequestCommandTCP
case cmdUDPPort: case cmdUDPPort:
if !s.config.UdpEnabled {
writeSocks5Response(writer, statusCmdNotSupport, net.AnyIP, net.Port(0))
return nil, newError("UDP is not enabled.")
}
request.Command = protocol.RequestCommandUDP request.Command = protocol.RequestCommandUDP
case cmdTCPBind:
writeSocks5Response(writer, statusCmdNotSupport, net.AnyIP, net.Port(0))
return nil, newError("TCP bind is not supported.")
default:
writeSocks5Response(writer, statusCmdNotSupport, net.AnyIP, net.Port(0))
return nil, newError("unknown command ", cmd)
} }
buffer.Clear() buffer.Clear()