Jon Shallow 0b41ee0511 cache_response: Cache the latest response to a CON request ...

If the ACK (not empty) response gets lost, the repeated CON request will just
get the cached response without invoking further analysis.

This stops things like OSCORE reporting retry issues.

This functionality needs to be enabled by setting the COAP_BLOCK_CACHE_RESPONSE
bit when calling coap_context_set_block_mode().  If not enabled, then, for OSCORE
the response is sent as a separate response (empty ACK followed by CON response),
which is how code previous to this PR works.

2025-02-03 08:51:31 +00:00

..

coap3

cache_response: Cache the latest response to a CON request

2025-02-03 08:51:31 +00:00

oscore

coap_oscore.c: Process queued OSCORE Observe responses after de-registration

2024-10-28 14:33:34 +00:00