How to enable FILS feature on Raspberry Pi 3b+ platform

Xiao Ma max8612 at gmail.com
Mon Sep 9 20:53:02 PDT 2019


Hey Jouni,

Thanks much for reply! BTW, would you mind to recommend certain
specific hardware platform/commercial product which already integrates
FILS feature successfully? That would be great if I can buy one to
setup the testing environment directly.

Thanks,
Xiao

Jouni Malinen <j at w1.fi> 于2019年9月9日周一 下午9:52写道:
>
> On Mon, Aug 12, 2019 at 04:45:04PM +0900, Xiao Ma wrote:
> > I would like to have a check if it's possible to enable FILS feature
> > on Raspberry Pi 3b+ platform and create a wireless network with FILS
> > feature, if so I can verify the authentication and HLP features.
>
> > if my understanding is correct from reading the IEEE80211ai standard,
> > AP which can support FILS capability would broadcast Beacon frame with
> > FILS Indication element (element ID: 240) and also set FILS Capability
> > bit (bit 72) in the Extended Capabilities element. I can observe the
> > FILS indication element bytes from the output log of hostapd, like
> > below:
> >
> > nl80211: Beacon head - hexdump(len=57): 80 00 00 00 ff ff ff ff ff ff
> > b8 27 eb 70 e9 b0 b8 27 eb 70 e9 b0 00 00 00 00 00 00 00 00 00 00 64
> > 00 31 04 00 06 50 69 34 2d 41 50 01 08 82 84 8b 96 0c 12 18 24 03 01
> > 0b
> > nl80211: Beacon tail - hexdump(len=39): 2a 01 00 32 04 30 48 60 6c 30
> > 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 f0 06
> > 80 02 12 34 d4 c9
> >
> > the last 8 bytes: f0 06 80 02 12 34 d4 c9, I believe that's FILS
> > indication elements.
>
> So hostapd side seems to be working..
>
> > However, when I use wireshark to capture the packet over the air, I
> > didn't notice these kind of information appeared in the Beacon frame
> > sent from AP (Raspberry Pi 3b+). Not sure if the nl80211 driver on
> > Raspberry Pi does't support FILS feature yet or something else.
>
> .. but the driver does not. This would be more of a question to whoever
> maintains that driver since this sounds like a driver-specific
> constraint.
>
> --
> Jouni Malinen                                            PGP id EFC895FA



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