[Commotion-dev] OpenWRT AP not functioning

[Dan Staples]

On Fri 26 Jul 2013 08:29:43 AM EDT, Josh King wrote:
> Yes, we should definitely continue to go with wpad assuming we can
> identify a version that works reliably. Presumably, the space savings
> is why OpenWRT compiles hostapd and wpa_supplicant into the wpad
> multi-call binary in the first place. Will was building images with a
> new version pinning as well, as he suspected that the problem might be
> a mismatch between the nl80211 headers included in wpad vs. the version
> made available with the kernel. He'll send updates to the list.
>
> As an aside, something we should look into doing at some point is
> rolling our own version of wpad-mini that has the IBSS-RSN compile
> flags added. The addition of those flags are the only reason we
> switched from wpad-mini to wpad, but wpad also contains the whole
> WPA-Enterprise stack and we could potentially save up to 400-600KB by
> stripping that out, from what I recall.
>
> On Fri 26 Jul 2013 07:43:34 AM EDT, Dan Staples wrote:
>> On Thu 25 Jul 2013 11:31:20 PM EDT, Ben West wrote:
>>> I did notice approx 1.5 months ago that AA r36682+ did seem to cause
>>> IBSS-RSN to stop working entirely, at least with nodes that had
>>> packages hostapd and wpa_supplicant (but NOT wpad) installed.
>>>
>>> Right now, I have a collection of nodes running AA r36681 with JUST
>>> wpad, any they appear to be doing IBSS-RSN adhoc just fine.
>>>
>>> Stability issues notwithstanding, is there a reason to go with the
>>> full hostapd / wpa_supplicant packages?  I noticed you save
>>> 150-200kBytes in firmware size using wpad instead.
>>>
>>> On Thu, Jul 25, 2013 at 8:59 PM, Dan Staples
>>> <danstaples at opentechinstitute.org
>>> <mailto:danstaples at opentechinstitute.org>> wrote:
>>>
>>>
>>>     Update: turns out building w/ wpa_supplicant and hostapd as separate
>>>     packages (instead of wpad which combines them into one binary) solves
>>>     the problem. A newer version of wpad/hostapd/wpa_supplicant is
>>>     available
>>>     since we pinned AA to revisions from April, so Will and Jordan
>>>     experimented with using the new version.
>>>
>>>     I just built with OpenWRT pinned @36682 and the packages feed @36537,
>>>     and can confirm it fixes the problem, while including the newer
>>>     version
>>>     of wpad/hostapd/wpa_supplicant. IBSS-RSN works as well.
>>>
>>>     Thanks Will and Jordan for doing a lot of hard work investigating this
>>>     today!
>>>
>>>     --
>>>     Dan Staples
>>>
>>>     Open Technology Institute
>>>     https://commotionwireless.net
>>>     OpenPGP key: http://disman.tl/pgp.asc
>>>     Fingerprint: 2480 095D 4B16 436F 35AB 7305 F670 74ED BD86 43A9
>>>     _______________________________________________
>>>     Commotion-dev mailing list
>>>     Commotion-dev at lists.chambana.net
>>>     <mailto:Commotion-dev at lists.chambana.net>
>>>     https://lists.chambana.net/mailman/listinfo/commotion-dev
>>>
>>>
>>>
>>>
>>> --
>>> Ben West
>>> http://gowasabi.net
>>> ben at gowasabi.net <mailto:ben at gowasabi.net>
>>> 314-246-9434
>>
>> 150-200k seems like a good enough reason to go with wpad instead of
>> separate hostapd/wpa_supplicant, especially since we are tight on
>> space. And since AP mode and IBSS-RSN both work w/ wpad at the
>> revisions I tested, we might as well move our pinning up to that, don't
>> you think?
>>
>> --
>> Dan Staples
>>
>> Open Technology Institute
>> https://commotionwireless.net
>> OpenPGP key: http://disman.tl/pgp.asc
>> Fingerprint: 2480 095D 4B16 436F 35AB 7305 F670 74ED BD86 43A9
>> _______________________________________________
>> Commotion-dev mailing list
>> Commotion-dev at lists.chambana.net
>> https://lists.chambana.net/mailman/listinfo/commotion-dev
>>

Good idea, I can work on compiling wpad-mini w/ IBSS-RSN support today 
if that makes sense. Should we move the pin versions in the meantime, 
since the current version doesn't work?

--
Dan Staples

Open Technology Institute
https://commotionwireless.net
OpenPGP key: http://disman.tl/pgp.asc
Fingerprint: 2480 095D 4B16 436F 35AB 7305 F670 74ED BD86 43A9