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diondokter / nrf-modem

Apache License 2.0
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DtlsSocket security_tags empty cases Invalid argument during connect #25

Open dragonnn opened 2 hours ago

dragonnn commented 2 hours ago

Hi! I got back to my old project add more functionality to it and I update all my libs including nrf-modem and then tried creating a DtlsSocket. I am pretty sure that works working fine before but now I did get Unknown error code -1 in SocketOptionError. I narrowed it down to having empty security_tags, at first I don't fully understand what are those for so I left them empty. I found that https://developer.nordicsemi.com/nRF_Connect_SDK/doc/v1.6-branch/nrfxlib/nrf_modem/doc/tls_dtls_configuration.html And set it currently to 0xC014 and stuff started working! I think that needs a more ergonomic way of providing that options with isn't that error prone. For nrf9160 as far I see all the values are listed here https://www.nordicsemi.com/Products/nRF9160/Download#infotabs So providing an enum with all those options (and eventually a "Custom" option to have user provide whatever they wont) would be better? Not sure about other chips. Or at least a huge red warning in defmt (or even a panic) to not provide empty security_tags.

diondokter commented 2 hours ago

Yeah, I'd definitely welcome changes there! Providing an enum with the available options sounds great and the custom fallback is nice too.

Good to hear you figured out the problem.