[X] I have read the component documentation ESP-IDF Components and the issue is not addressed there.
[X] I am using target and esp-idf version as defined in component's idf_component.yml
[X] I have searched the issue tracker for a similar issue and not found any related issue.
Which component are you using? If you choose Other, provide details in More Information.
coap
ESP-IDF version.
5.2.1
Development Kit.
Seeed XIAO ESP32C3
Used Component version.
4.3.4~1
More Information.
The component page lists RFC9177 as supported, but in reality that is not the case. The corresponding upstream libcoap version does support it, but that support is always disabled in the ESP-IDF component. I can see the relevant macro (COAP_Q_BLOCK_SUPPORT) is defined in port/include/coap_config.h, but the corresponding configuration option is not present in the Kconfig file, so the functionality cannot be enabled (at least not without using some dirty tricks to inject the macro when building the component).
Answers checklist.
Which component are you using? If you choose Other, provide details in More Information.
coap
ESP-IDF version.
5.2.1
Development Kit.
Seeed XIAO ESP32C3
Used Component version.
4.3.4~1
More Information.
The component page lists RFC9177 as supported, but in reality that is not the case. The corresponding upstream libcoap version does support it, but that support is always disabled in the ESP-IDF component. I can see the relevant macro (
COAP_Q_BLOCK_SUPPORT) is defined inport/include/coap_config.h, but the corresponding configuration option is not present in theKconfigfile, so the functionality cannot be enabled (at least not without using some dirty tricks to inject the macro when building the component).