spdm_responder_lib cannot identify capability conflict of DATA_TRANSFER_SIZE and MAX_SPDM_MSG_SIZE for SPDM version 1.0 & 1.1 about spdm-emu

[steven-bellock]

What SPDM version(s) does the Requester support? If it's the https://github.com/DMTF/SPDM-Responder-Validator then it cannot talk to a 1.3-only Responder since we haven't updated Responder Validator to 1.3 yet.

[owen126315]

The problem still here even responder is 1.2.

[owen126315]

I guess the root cause is can both requester and responder support chunk, not SPDM version. the DATA_TRANSFER_SIZE and MAX_SPDM_MSG_SIZE must be equal if chunk is not support.
And libspdm_get_response_capabilities never check these two parameters when request.version = 1.0.

[steven-bellock]

Those two fields, and chunking, did not exist until SPDM 1.2.