Re: 11s mesh authentication problem

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Yeah, you're right and thanks for the reply!   I later realize I made
wrong conclusion.
I looked further and saw lots of timeout happened:
Aug  1 20:30:43  daemon.debug wpa_supplicant[2358]: wlan1:
ap_handle_timer: a0:76:2f:00:1f:04 flags=0xe00 timeout_next=0
Aug  1 20:30:43  daemon.debug wpa_supplicant[2358]: wlan1: Timeout,
sending disassociation info to STA a0:76:2f:00:1f:04

We did increase the SAE timeout from 30ms to 200ms but it didn't help.
Wonder whether this is triggered by a different timeout.  Will dig
further.

Thanks!


On Thu, Aug 2, 2018 at 7:00 PM, Bob Copeland <me@xxxxxxxxxxxxxxx> wrote:
> On Thu, Aug 02, 2018 at 01:22:59PM -0700, Joshua Zhao wrote:
>> Hi,
>> I'm running the open source 11s mesh with QCA Dakota radios. But as we
>> set up more spaces, say > 4 spaces, mesh authentication starts to
>> become difficult. As I look into the code, it appears to me that the
>> SAE state machine is not tracking/identifying the peers?  So when the
>> commit & confirm messages between multiple peers interleave each
>> other, the state machine either sees ECC/FFC mismatch or keeps
>> resetting the states.
>>
>> Is my observation correct?  And is this a known issue?
>
> The peers are tracked: this is what the sta parameter in sae_sm_step() is
> for.  What hardware is this?  Some devices have limits in terms of the
> number of peers or keys they can handle.
>
> --
> Bob Copeland %% https://bobcopeland.com/

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