tpmproxy

type Exchanger struct {
	// Src is the exchange source.
	Src io.ReadWriter
	// Dst is the exchange destination.
	Dst io.ReadWriter
	// HandlerFactory is the factory that creates RequestResponseHandlers.
	HandlerFactory RequestResponseHandlerFactory
}

type Forwarder io.ReadWriteCloser

type ForwarderFactory interface {
	NewForwarder() (Forwarder, error)
}

type Interceptor interface {
	// HandleRequest handles a request and returns a modified request.
	HandleRequest(request *Request) []byte
	// HandleResponse handles a response and returns a modified response.
	HandleResponse(request *Request, response []byte) []byte
}

type IoForwarder struct {
	Fd int
}

type IoForwarderFactory struct {
	Path string
}

type NopRequestResponseHandler struct {
}

type NopRequestResponseHandlerFactory struct {
	Handler NopRequestResponseHandler
}

type QemuCtrlRelayer struct {
	CtrlSockFile         string
	ForwarderFactory     ForwarderFactory
	CtrlForwarderFactory ForwarderFactory
	TerminateOnClose     bool
	Interceptor          Interceptor
	Terminate            chan interface{}
}

type Request struct {
	// Hdr is the TPM command header.
	Hdr *tpm2.TPMCmdHeader
	// Raw is the raw command.
	Raw []byte
}

type RequestResponseHandler interface {
	// HandleRequest handles a request and returns a modified request.
	// The request is a byte slice that contains the raw request.
	HandleRequest(request []byte) []byte
	// HandleResponse handles a response and returns a modified response.
	// The response is a byte slice that contains the raw response.
	HandleResponse(response []byte) []byte
}

type RequestResponseHandlerFactory interface {
	// NewRequestResponseHandler creates a new RequestResponseHandler.
	NewRequestResponseHandler() RequestResponseHandler
}

type RoughParser struct {
	RawRequest  []byte
	RawResponse []byte

	// Cmd is the command structure pointer
	Cmd any
	// Rsp is the response structure pointer
	Rsp    any
	CmdHdr *tpm2.TPMCmdHeader

	// CmdParameterOffset is the offset of the command parameters
	CmdParameterOffset int
	// RspParameterOffset is the offset of the response parameters
	RspParameterOffset int
}

type TcpForwarderFactory struct {
	Addr string
}

type TcpRelayer struct {
	Addr             string
	ForwarderFactory ForwarderFactory
	TerminateOnClose bool
	Interceptor      Interceptor
	Terminate        chan interface{}
}

type TpmRequestResponseHandler struct {
	Interceptor Interceptor
	Request     Request
}

type TpmRequestResponseHandlerFactory struct {
	// Interceptor is the Interceptor that intercepts requests and responses.
	Interceptor Interceptor
}