SASL handshake failed

[HyP3r-]

Hello, we are using azure-uamqp-c as part of the Python Package azure-iothub-service-client (which is part of the azure-iot-sdk-python which is part of the azure-iot-sdk-c).

Now I was trying to change the Share Access Polices from iothubowner to service in my code to imporve the security. But with the service Share Access Polices I get following error:

Error: Time:Wed Jun 20 15:14:29 2018 File:C:\Release\iot-sdks-internals\release\python\automation\aziotsdk_pytools\src\c\uamqp\src\saslclientio.c Func:_on_sasl_frame_received_callback Line:901 SASL handshake failed with code 02

For troubleshooting I granted the service Share Access Polices the same IoT Hub permissions as the iothubowner but I still get this error. Why?

[dcristoloveanu]

Hi @HyP3r-

Thanks for filing the issue. Per the AMQP standard a response of 2 (sys) in the SASL handshake indicates a server error when processing the request (Connection authentication failed due to a system error.).

This error gets indicated to the user of uamqp (azure-iothub-service-client) so unfortunately I think the issue lies either in that layer or some other error happened on the server side.

I am adding @zolvarga here who owns the azure-iot-sdk-python and has all the knowledge of how service client sets up the SASL handshake and I would encourage opening an issue in that repo if not open already. @zolvarga, could you investigate this one further?

Thanks, /Dan

[zolvarga]

@HyP3r-

I will move (close here and copy paste to there) this issue to the azure-iot-sdk-python repo and follow up on that there.

Best Regards, Zoltan

[zolvarga]

@HyP3r-

This is the new issue t ofollow up: https://github.com/Azure/azure-iot-sdk-python/issues/149

Best Regards, Zoltan