Nokia N900 A-GPS Not Working Anymore - Page 28 - maemo.org

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sicelo	2017-07-13 , 15:03
Community Council \| Posts: 691 \| Thanked: 1,240 times \| Joined on Sep 2010 @ Mbabane	#271

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

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pali	2017-07-15 , 08:59
Posts: 2,154 \| Thanked: 8,464 times \| Joined on May 2010	#272

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

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sicelo	2017-08-20 , 16:15
Community Council \| Posts: 691 \| Thanked: 1,240 times \| Joined on Sep 2010 @ Mbabane	#273

@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.

Last edited by sicelo; 2017-09-04 at 08:31. Reason: adding [code] blocks

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sicelo	2017-08-25 , 14:04
Community Council \| Posts: 691 \| Thanked: 1,240 times \| Joined on Sep 2010 @ Mbabane	#274

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

Attached Files

sicelo_certs.tar.gz (283.0 KB, 114 views)

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jonwil	2017-08-25 , 15:00
Posts: 567 \| Thanked: 2,966 times \| Joined on Oct 2009	#275

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)

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sicelo	2017-09-04 , 08:22
Community Council \| Posts: 691 \| Thanked: 1,240 times \| Joined on Sep 2010 @ Mbabane	#276

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

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	peterleinchen	2017-09-04 , 20:04
	Posts: 4,118 \| Thanked: 8,901 times \| Joined on Aug 2010 @ Ruhrgebiet, Germany	#277

Originally Posted by sicelo

...
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...

Well spotted, thanks!

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sicelo	2018-04-16 , 17:35
Community Council \| Posts: 691 \| Thanked: 1,240 times \| Joined on Sep 2010 @ Mbabane	#278

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.

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sicelo	2018-04-18 , 06:55
Community Council \| Posts: 691 \| Thanked: 1,240 times \| Joined on Sep 2010 @ Mbabane	#279

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

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justmemory	2018-04-18 , 08:28
Posts: 391 \| Thanked: 912 times \| Joined on Aug 2011 @ suncity	#280

Originally Posted by sicelo

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)...