Thanks for the detailed analysis. Could you file this as a bug under https://bugzilla.mozilla.org/enter_bug.cgi?product=Core&component=Geolocation
Thanks, Hanno On 19.03.2014, at 21:00 , Wesley Hardman <[email protected]> wrote: > Ok, I figured out what was causing this. When connected to an access point, > some wireless adapters go into a "low scan" state (actually, most probably do > to a degree). Meaning they don't actually pay attention to access points > unless requested to. I switched to a different adapter and I get more access > points. I tested the wlanapi, and if you call WlanScan and wait for it to > scan, it will return all access points, but if you just call > WlanGetNetworkBssList, it returns whatever it happens to notice at that time. > Firefox never actually performs a scan, only a cursory glance at what > happens to be detected. > > On 2014-03-19 10:51, Wesley Hardman wrote: >> NetworkGeolocationProvider.js is only receiving 2 APs. Something is either >> filtering or lumping them together before it gets there. I'm going to try a >> build with WLAN api version 2 (Vista) and see if it makes a difference. >> >> On 2014-03-19 08:32, Wesley Hardman wrote: >>> *** WIFI GEO: Filtering out AP1 >>> *** WIFI GEO: Filtering out AP2 >>> >>> Is it filtering out duplicates? The only place "Filtering out" exists in >>> the source code, is for the _nomap filter. Then again, shouldn't have >>> filtered ~8? I'll see if I can add additional logging. >>> >>> On 2014-03-19 05:38, Hanno Schlichting wrote: >>>> On 17.03.2014, at 21:30 , Wesley Hardman <[email protected]> wrote: >>>>> How does Firefox determine the BSSID list to send for geolocation? I >>>>> posted in "GeoIP support, was: Erroneous location" about not getting a >>>>> result for 2 APs. The response is that the service requires 3. That's >>>>> fine, but as I was thinking about it, why is Firefox only sending 2? >>>>> >>>>> The setup is: >>>>> 3 physical access points (2 with decent stable signal) >>>>> each access point broadcasts 2 SSIDs each on 2.4GHz and 5GHz. >>>>> >>>>> This results in 12 visible access points, with 12 unique BSSIDs, 8 having >>>>> a stable signal. Shouldn't it be returning 8 APs? >>>> >>>> There is apparently a debug mode for WiFi. Steps to activate it: >>>> >>>> - go to about:config >>>> - add a new boolean key named “geo.wifi.logging.enabled” >>>> - set it to true >>>> - end Firefox >>>> - start Firefox from a shell, so you can see stdout (shell output) >>>> (I had to start /Applications/FirefoxAurora.app/Contents/MacOS/firefox-bin >>>> on a Mac) >>>> - go to a website using the HTML5 Geolocation API and allow it to do the >>>> request >>>> - watch shell output >>>> >>>> It should give you output like: >>>> >>>> *** WIFI GEO: startup called. testing mode isfalse >>>> *** WIFI GEO: watch called >>>> *** WIFI GEO: setting highAccuracy to TRUE >>>> *** WIFI GEO: onChange called, highAccuracy = TRUE >>>> *** WIFI GEO: ************************************* Sending request: <url> >>>> *** WIFI GEO: ************************************* ------>>>> sending >>>> {"wifiAccessPoints”:[<wifis>]} >>>> *** WIFI GEO: gls returned status: 200 --> {"location":{"lat”: <lat> >>>> ,"lng”: <lon>},"accuracy”:<accuracy>} >>>> *** WIFI GEO: setting highAccuracy to FALSE >>>> *** WIFI GEO: shutdown called >>>> >>>> The various <…> should be filled with real data. >>>> >>>> Hope this makes it easier to debug, >>>> Hanno >>>> >>> >> > > _______________________________________________ > dev-geolocation mailing list > [email protected] > https://lists.mozilla.org/listinfo/dev-geolocation _______________________________________________ dev-geolocation mailing list [email protected] https://lists.mozilla.org/listinfo/dev-geolocation
