Re: IWD 1.27 with brcmfmac not working for roaming

[James Prestwood <prestwoj@gmail.com>]

Denis,

On 10/22/24 11:44 AM, Denis Kenzior wrote:
> Hi James, Arend,
>
>> errors out as its unsupported. I don't believe there is any way for 
>> IWD to check if OWE is supported by the driver, and we just assume it 
>> is (Arend, maybe you know of a way to check this?). It appears that 
>> what you need is a new IWD option 
>
> Indeed, there's no explicit way of checking supported AKMs.  The 
> NL80211 API isn't much help either:
>
> /**
>  * DOC: OWE DH IE handling offload
>  *
>  * By setting @NL80211_EXT_FEATURE_OWE_OFFLOAD flag, drivers can indicate
>  * kernel/application space to avoid DH IE handling. When this flag is
>  * advertised, the driver/device will take care of DH IE inclusion and
>  * processing of peer DH IE to generate PMK.
>  */
>
> Perhaps for FullMAC, iwd should start checking for 
> EXT_FEATURE_OWE_OFFLOAD presence, and if not present, do not use OWE.  
> Too bad no upstream driver actually sets this bit. Unless... maybe OWE 
> works with other FullMAC devices and we'd break things for those...?  
> Kernel folks really need to chime in here.
For an explicit option what about the transition disable stuff? I know 
you set those options based on AP capabilities IIRC, but could we allow 
a profile to set those manually? It appears that is checked for in 
network_can_connect_bss() but I need to refresh myself on how that all 
works.
>
> Regards,
> -Denis