Comments (3)
as per SPDM spec SPDM Responders have the capability to trigger END_SESSION.
No. Currently END_SESSION
cannot be encapsulated :
Only certain requests can be encapsulated in any encapsulated request flow. Their corresponding responses, including ERROR, can also be encapsulated. Additionally, these requests are only allowed in certain flows as described in various parts of this specification. This consolidated list shall be the requests that are allowed to be encapsulated:
- CHALLENGE
- GET_CERTIFICATE
- GET_DIGESTS
- KEY_UPDATE
- SUBSCRIBE_EVENT_TYPES
- SEND_EVENT
- GET_SUPPORTED_EVENT_TYPES
- GET_ENDPOINT_INFO
A Responder can internally terminate its session, and then reply with DecryptError
to request messages. This will signal to the Requester that the session is over. That is being tracked in #2309.
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Yes I agree END_SESSION
cannot be encapsulated.
But spec allows SPDM Responders to send END_SESSION right ? So in case spdm requester gets END_SESSION
command from SPDM Responder we dont have mechanism to handle in libspdm
from libspdm.
But spec allows SPDM Responders to send END_SESSION right ?
An asynchronous (non-encapsulated) transmission from Responder to Requester? No. Only a subset of the encapsulated requests can be sent asynchronously by the Responder:
- KEY_UPDATE
- SUBSCRIBE_EVENT_TYPES
- SEND_EVENT
- GET_SUPPORTED_EVENT_TYPES
- GET_ENDPOINT_INFO
For those SPDM (and application) messages that are supported #498 tracks that issue.
from libspdm.
Related Issues (20)
- Add assertions after `libspdm_measurement_collection` HOT 1
- `libspdm_verify_set_cert_leaf_cert_basic_constraints` needs to be updated for SPDM 1.3
- libspdm mandating `OpaqueData` to be set to `SPDM_ALGORITHMS_OPAQUE_DATA_FORMAT_1` HOT 17
- Add support for DSP0277 1.2
- Need add check before assigning the actual value size to spdm_request_size
- Fix code scanning alert - Comparison of narrow type with wide type in loop condition HOT 3
- Move `LIBSPDM_MAX_MEASUREMENT_EXTENSION_LOG_SIZE`
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- Check state of send / receive buffers at end of unit tests
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- Core libraries must not zeroize the receive buffer
- Removal of disclaimer that libspdm is not fit for production HOT 3
- Incorrect use of logical negation in unit tests HOT 1
- Need add `FINISH_RSP` test case to cover the scenario: either the Requester or the Responder set `HANDSHAKE_IN_THE_CLEAR_CAP` to 0.
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