Socket API (TCP): support for serialization and for any messaging library?

[piachristel]

I use the Socket API (TCP) to setup a TA running a socket client which connects to a remote socket server.

Is there any library for serializing (encoding/decoding) the data (protobuf, nanopb or others) supported by OP-TEE?
The only information I have found are two issues related to protobuf (#2960 and #901)...

Is there any client-server framework (gRPC, ZeroMQ or others) supported by OP-TEE?

[jenswi-linaro]

I'm afraid the answer is no and no.

[jbech-linaro]

Hi Christina,

Is there any library for serializing (encoding/decoding) the data (protobuf, nanopb or others) supported by OP-TEE?

Unfortunately no, so in those places where we've have serialized things (xtest, Keymaster) it's been an "ad-hoc" solution. It's works, but it's rather hardcoded for the rest of the code, i.e, no generic serializer.

Is there any client-server framework (gRPC, ZeroMQ or others) supported by OP-TEE?

The answer is no there too, sorry!

[piachristel]

Thank you for your fast reply!
It's great how you care about answering the issues!