IRC log of #maemo for Tuesday, 2017-02-21

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jonwilI cant believe I finally found http://simalliance.org/wp-content/uploads/2015/03/SIMalliance_UICC_Device_Implementation_Guidelines-1.1.pdf which has all the juicy information about display of operator names and service provider names and things. Wish I had had that document when I was working on connui-home-cellular, it would have helped so much04:03
jonwilbut now I finally understand the inner workings of connui_cell_sim_get_service_provider, connui_cell_sim_is_network_in_service_provider_info and the related dbus calls (and for that matter what the fields in the ISI structure for the relavent calls actually mean)04:05
jonwiland I finally understand just how the code picks what to display for the operator name04:06
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jonwilYou can thank https://media.ccc.de/v/33c3-8151-dissecting_modern_3g_4g_cellular_modems for inspiring me to see if I could tell what OS the N900 cellmo is using (I couldn't) which lead me to checking some old ISI header files I had for isi message structures related to SIM operator name which lead me to the field name display_con_not_in_hplmn_or_spdi which lead me to google what spdi was...04:11
jonwil...which lead me to that PDF :)04:11
jonwilSo now another one of the mysteries of the N900 is solved04:12
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Vajbjonwil: goodjob!05:35
Vajbjonwil: now i have real reverse engineering idea. Rtcom-messaging-ui. It has a bug that silently drops sms if it has some special encoding (such as smileys).05:36
jonwilTo figure out that, we need to figure out where in the stack its being dropped. Its going to be one of 4 places. Cellular modem. libcsd-sms. telephony-ring. rtcom-messsaging-ui.05:39
jonwilIf its being dropped in cellular modem, we can forget fixing it.05:39
jonwilif its being dropped elsewhere we have a target for reverse engineering05:39
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Vajbjonwil: it has been solved, but it is just a patch. There was a thread in tmo about it.06:06
Vajbi didn't dare to try it my main device, but it has been said to work.06:07
jonwilok, so its a libsms-utils patch.06:08
jonwilLinks dont work though so I cant see what its patching06:09
Vajboh. I hope someone has them stored. I think there will eventually be day when all sms r dropped. Now there r just few devices from where that happens06:14
jonwilI found it on web.archive.org wayback machine06:19
Vajb:)06:23
jonwilIt just changes the parameter to a libc function (iconv_open)06:23
jonwilso there is no further reverse engineering required06:25
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Vajbhmm i see. Could it be then implemented in CSSU?06:29
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jonwilThat would be up to the CSSU maintainers06:33
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Vajbok06:38
Vajbi hope they will...06:39
Michael_a380Possible otterbox case for n900 available...06:41
Michael_a380http://talk.maemo.org/showpost.php?p=1523803&postcount=2706:42
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bencohjonwil, Vajb: sources for the "patch" are still available (or were not so long ago)09:35
jonwilI found the patch via web.archive.org and I see exactly how it works09:36
bencoh(and I successfully built itafaict)09:36
jonwilso whatever sources for that patch exist dont matter09:36
bencohwell actually it does, but anyway :)09:37
jonwiland in fact there is a better way to do it if you can somehow modify things to insert the string UTF-16 into the binary and modify one address to use that instead of the string UCS-209:37
jonwili.e. do that via a binary patch (much like my libsms.so binary patch for cbsns)09:38
Wizzupjonwil: Vajb link to said patch?10:02
bencohhttps://thp.io/2014/emojifix/10:05
bencohwell, https://github.com/harmattan/emojifix actually10:06
bencohI don't really understand why he dropped the old page10:06
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jonwilThat fix looks like its for Harmattan rather than Fremantle10:47
jonwilthe github repo anyway10:47
bencohit's for both10:47
jonwilok, now I see10:48
xesone day i should recheck/retry that patch. I still miss some message with a some kind of emoticon inside... i had to use dbus-script to save incoming sms events and raw messages10:59
bencohhm that's actually a good idea :)11:01
xes..but then the raw message is not easy do decode11:01
bencohindeed11:01
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bencohis it just me or the TMO (startcom class1 signed) certificate is considered as untrusted?11:40
Wizzupgnutls-cli complains, firefox does not11:50
WizzupIt's probably not chained properly11:51
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