Support for ERROR (ResponseNotReady)?

[imlk0]

The SPDM doc mentioned that if a Responder is not ready to return response, it may return a ERROR (ResponseNotReady) message.

548 10.13 RESPOND_IF_READY request message format

and

Figure 14 — RESPOND_IF_READY flow leading to completion

For example, the Requester may receive a ERROR (ResponseNotReady) when a CHALLENGE_AUTH response is expected. However, this this mechanism does not seem to be implemented in spdm-rs.

spdm-rs/test/spdm-requester-emu/src/main.rs

Lines 283 to 292 in a2aa7a6

	if context
	.send_receive_spdm_challenge(
	0,
	SpdmMeasurementSummaryHashType::SpdmMeasurementSummaryHashTypeNone,
	)
	.await
	.is_err()
	{
	panic!("send_receive_spdm_challenge failed!");
	}

[jyao1]

It is not supported yet.
Do you want to propose a patch?