P2P provision discovery request check

Jouni Malinen j
Thu Jul 31 07:18:59 PDT 2014

On Sun, Jul 13, 2014 at 08:02:38PM +0800, Awk Jiang wrote:
> In the P2P spec, it doesn't mention that whether to accept a
> provision discovery request from a P2P Device should be decided by
> the P2P group id. But in p2p_build_prov_disc_resp(), the P2P group id
> should be matched to be accepted, is it reasonable?

Are you referring to the Wi-Fi Display handling in
p2p_build_prov_disc_resp()? p2p_process_prov_disc_req() is the main
place where P2P Group ID is used to determine whether to accept a PD

The P2P specification requires the P2P Group ID attribute to be included
in the PD Request frame for the use case of joining an already operating
group. As such, it is reasonable to use this information to confirm that
the peer is referring to a group that exists.

Jouni Malinen                                            PGP id EFC895FA

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