Discussion:
AuthSAE problem between Kernel 3.10 & 3.15
Lukas Göstl
2014-07-14 14:01:45 UTC
Permalink
Hi,

i succesfully build up a secure Mesh Network with AuthSAE with the Kernel-Version 3.10. Now I installed the Kernel-Version 3.15 on my device. I noticed that the secure Mode is only working when both devices have the same kernel-version. The peers with different Kernel-Versions are not seeing each other and I get no output of "iw dev mesh0 station dump". The open80211 without AuthSAE is working perfectly between different Kernel-Versions.

So my question is why the secure Mesh Network with AuthSAE only works with devices which have the same kernel-version and what can I do to fix it?


Thanks,
Lukas
Bob Copeland
2014-07-14 14:13:13 UTC
Permalink
Post by Lukas Göstl
Hi,
i succesfully build up a secure Mesh Network with AuthSAE with the
Kernel-Version 3.10. Now I installed the Kernel-Version 3.15 on my
device. I noticed that the secure Mode is only working when both
devices have the same kernel-version. The peers with different
Kernel-Versions are not seeing each other and I get no output of "iw
dev mesh0 station dump". The open80211 without AuthSAE is working
perfectly between different Kernel-Versions.
So my question is why the secure Mesh Network with AuthSAE only works
with devices which have the same kernel-version and what can I do to
fix it?
Hmm, I'm not aware of the actual problem -- but that description might
explain the issues I was having with wpa_supplicant over the weekend.

As the first step of authentication, the userspace daemons register with
the kernel to get notification when any new peers are available. It's
possible that the checks for which peers are acceptable changed somehow
between the kernel versions and so the notifications aren't delivered.

The best bet is to try to bisect it: try 3.13 on one device, then either
3.12 or 3.14, to try to narrow down when the change/regression was
introduced.
--
Bob Copeland %% www.bobcopeland.com
François Gervais
2014-07-14 14:54:16 UTC
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