maemo.org - Talk - Nokia N900 A-GPS Not Working Anymore

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- - Nokia N900 A-GPS Not Working Anymore (https://talk.maemo.org/showthread.php?t=90651)

Re: Nokia N900 A-GPS Not Working Anymore

more than 1 minute if you have good/working networking = no A-GPS

Re: Nokia N900 A-GPS Not Working Anymore

You need to update certificates from last cssu-devel|testing as supl server has problems...

Re: Nokia N900 A-GPS Not Working Anymore

@jonwil - for some reason my A-GPS is not working again.
Installed package versions:

Code:

~ $ dpkg -l *maemosec*

Desired=Unknown/Install/Remove/Purge/Hold

| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend

|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)

||/ Name                        Version                     Description

+++-===========================-===========================-======================================================================

ii  libmaemosec-certman-applet0 0.1.5                       Certificate manager external UI library.

ii  libmaemosec-certman0        0.2.9                       Maemo certificate manager shared library

ii  libmaemosec0                0.2.9                       Maemo security base library

ii  maemosec-certman-applet     0.1.5                       Control Panel Certificate Manager plugin

ii  maemosec-certman-common-ca  0.2.9                       Common CA certificates

ii  maemosec-certman-tools      0.2.9                       Maemo certificate manager runtime tools

cmcli output:

Code:

~ $ cmcli -T common-ca -v supl.nokia.com:7275

1ad16dd494e161abd39bd94ed94bf8eafe4ede28 supl.nokia.com

 trust chain(1):

   b677fa6948479f5312d5c2ea07327607d1970719 VeriSign Universal Root Certification Authority

Verified OK

~ $ cmcli -T location-proxy -v supl.nokia.com:7275

1ad16dd494e161abd39bd94ed94bf8eafe4ede28 supl.nokia.com

 Verification failed: self signed certificate

I don't know what has happened here. Is it possible that somehow 'Nokia' has removed the old root cert which we worked around by using a different cert-store? My guess is that location-proxy checks in its cert store BEFORE it checks the common-ca store, since I assume it should succeed if it looked in common-ca as well, if the above cmcli output is anything to go by.

I'll downgrade the maemosec packages when I find time to see what happens.

Re: Nokia N900 A-GPS Not Working Anymore

uploading /etc/secure & /etc/certs for testing

Re: Nokia N900 A-GPS Not Working Anymore

If anyone else is having problems with AGPS, try 52.22.201.16 for the IP address in /etc/hosts and see if that works. If that doesn't fix it (or if 52.22.201.16 is already what you have in /etc/hosts), check what version of maemosec-certman-common-ca you are running (via dpkg -l). If you are running anything older than 0.2.9 you should upgrade to 0.2.9.

Easiest way to upgrade (with minimal risk) is to go to http://maemo.merlin1991.at/cssu/comm...curity-certman then download and install (via dpkg -i) libmaemosec-certman0_0.2.9_armel.deb, libmaemosec0_0.2.9_armel.deb, maemosec-certman-common-ca_0.2.9_all.deb and maemosec-certman-tools_0.2.9_armel.deb.

If you are already running 0.2.9 and have checked that your IP address is correct and its still not working, try downloading maemosec-certman-common-ca_0.2.9_all.deb from the above repository URL and reinstalling it with dpkg -i

In sicelo's case downloading and reinstalling maemosec-certman-common-ca_0.2.9_all.deb was what fixed it (he was already running 0.2.9)

Re: Nokia N900 A-GPS Not Working Anymore

I have found more information regarding the issue - it turns out that my certificates were NOT corrupted in any way. (for those not following IRC, a day or two after the fix mentioned above, the problem re-occurred).

TL;DR - if you have had a time update since the device was up, and A-GPS doesn't lock, while you have all the prerequisites mentioned by jonwil in previous post, stop and restart location-proxy

Code:

~# stop location-proxy

~# start location-proxy

I do not set time when my N900 boots up from battery out condition (I used the tweak that bypasses the prompt to set time). My time is then set via ntpdate as soon as I have a working network connection.

I know from syslog that location-proxy starts automatically when the device boots, and it would therefore seem that somehow location-proxy 'primes' itself ahead of time and having already decided (at bootup) that the time is incorrect, does not realize that the time is correct.

My conclusion might be wrong however, as it doesn't make sense to me how location-proxy manages to fail when running cmcli or openssl, when both of them report good certs when run manually. Either way, the behavior is reproducible.

In the meantime, stopping and restarting location-proxy works reliably for me thus far. And of course, the battery-out condition does not happen too often :)

Re: Nokia N900 A-GPS Not Working Anymore

Quote:

Originally Posted by sicelo (Post 1533892)

...
TL;DR - if you have had a time update since the device was up, and A-GPS doesn't lock, while you have all the prerequisites mentioned by jonwil in previous post, stop and restart location-proxy

Code:

~# stop location-proxy

~# start location-proxy

...
My conclusion might be wrong however, as it doesn't make sense to me how location-proxy manages to fail when running cmcli or openssl, when both of them report good certs when run manually. Either way, the behavior is reproducible.

:)

To you/me/us... :D

Well spotted, thanks!

Re: Nokia N900 A-GPS Not Working Anymore

a-gps seems non-functional again. working for you @jonwil, or anyone else?
i haven't the time to troubleshoot yet. will do proper tests soon as i get a chance.

Re: Nokia N900 A-GPS Not Working Anymore

Ok, for one thing, the IP address has changed,
https://www.whatsmydns.net/#A/supl.nokia.com

Re: Nokia N900 A-GPS Not Working Anymore

Quote:

Originally Posted by sicelo (Post 1543411)

Ok, for one thing, the IP address has changed,
https://www.whatsmydns.net/#A/supl.nokia.com

Hmm... recently I was using supl.google.com - don't ask why; I read somewhere this solution when I had trouble with positioning last time. Anyway I checked and it did not work either (I was in a house though)...