fix(migtd/spdm): make session failures atomic - #1028
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Evaluate the responder message result before treating a removed session as a successful END_SESSION. This preserves VDM and policy failures when the handler tears down the session. Signed-off-by: Haitao Huang <haitaohuang@microsoft.com> Assisted-by: GitHub Copilot CLI:GPT-5.6-Sol [migtd-review]
Invalidate requester and responder sessions on every failure after key exchange, including timeout and transport-finalization paths. Always attempt transport shutdown while preserving the primary protocol error. Assisted-by: GitHub Copilot CLI:GPT-5.6-Sol [migtd-review] Signed-off-by: Haitao Huang <haitaohuang@microsoft.com>
Stage peer migration information during the SPDM VDM exchange and commit the negotiated version, MSK, and approved SERVTD_EXT hash only after END_SESSION and transport shutdown complete successfully. Preserve one-shot responder handling so a replay cannot replace staged state. Assisted-by: GitHub Copilot CLI:GPT-5.6-Sol [migtd-review] Signed-off-by: Haitao Huang <haitaohuang@microsoft.com>
haitaohuang
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It's a rather big change, I'll review next week |
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Summary
Harden SPDM migration and rebind failure atomicity across three ordered commits:
END_SESSION.END_SESSIONand transport shutdown. Responder exchange remains one-shot so replay cannot replace staged state.The change preserves the existing quote and TDREPORT binding paths and does not import policy-series refactors, one-hash/CoRIM/RTMR1 changes, test bypasses, or diagnostic logging.
Validation
bash sh_script/preparation.shcargo fmt --checkcargo checkcargo test -p migtd --lib(23 passed)main,stack-guard,vmcall-raw,spdm_attestation,policy_v2)stack-guard,virtio-vsock,virtio-serial,vmcall-interrupt)cargo deny check advisories,sources, andbanscargo xtask lib-buildandcargo xtask lib-testintegration-emu.ymlscenarios, run sequentially