p2p_buf_add_group_info - attr/ie_len limit

Janusz Dziedzic janusz.dziedzic at tieto.com
Sat Mar 14 05:39:58 EDT 2015


On 14 March 2015 at 09:58, Jouni Malinen <j at w1.fi> wrote:
> On Wed, Mar 11, 2015 at 04:43:41PM +0100, Janusz Dziedzic wrote:
>> Seems group_info is limited to single p2p_ie (len=255). We reproduce
>> problem when more than 5 p2p_clients connected (for sure device names
>> are quite long).
>> How should we fix this correctly. Adding additional p2p information
>> element(s) to probe response when adding group_info and pass over IE
>> len limit?
>
> How did you determine that a single P2P IE would be the limit?
> wpa_supplicant fragments the group info into multiple P2P IEs when
> needed.
>
Wireshark show such p2p ie is corrupted after we connect more than 5 clients.
So, will check this while this could be wireshark bug ??

BR
Janusz

> --
> Jouni Malinen                                            PGP id EFC895FA
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