Exemple #1
0
// NewTPMContext initialises a new TPM context and sets up the
// internal TSS structures.
func NewTPMContext() (*TPMContext, error) {
	var result C.TSS_RESULT
	var ctx TPMContext

	C.Tspi_Context_Create(&ctx.ctx)
	result = C.Tspi_Context_Connect(ctx.ctx, nil)
	if result != C.TSS_SUCCESS {
		switch result {
		case C.TSS_E_INVALID_HANDLE:
			return nil, ErrInvalidHandle
		case C.TSS_E_INTERNAL_ERROR:
			return nil, ErrInternalError
		default:
			return nil, ErrUnknown
		}
	}
	result = C.Tspi_Context_GetTpmObject(ctx.ctx, &ctx.tpm)
	if result != C.TSS_SUCCESS {
		switch result {
		case C.TSS_E_INVALID_HANDLE:
			return nil, ErrInvalidHandle
		case C.TSS_E_INTERNAL_ERROR:
			return nil, ErrInternalError
		case C.TSS_E_BAD_PARAMETER:
			return nil, ErrBadParameter
		default:
			return nil, ErrUnknown

		}
	}
	return &ctx, nil
}
Exemple #2
0
// Connect opens a connection between the context and the TSS daemon. It
// returns an error on failure.
func (context *Context) Connect() error {
	var tpmhandle C.TSS_HTPM
	err := tspiError(C.Tspi_Context_Connect(context.context, nil))
	if err != nil {
		return err
	}
	C.Tspi_Context_GetTpmObject(context.context, &tpmhandle)
	context.tpm = TPM{handle: tpmhandle, context: context.context}
	return nil
}
Exemple #3
0
func NewContext() (*Context, error) {
	c := new(Context)
	if result := C.Tspi_Context_Create(&c.ctx); isError(result) {
		return nil, Error{result}
	}
	if result := C.Tspi_Context_Connect(c.ctx, nil /* local TPM */); isError(result) {
		return nil, Error{result}
	}
	if result := C.Tspi_Context_GetTpmObject(c.ctx, &c.tpm); isError(result) {
		return nil, Error{result}
	}

	return c, nil
}