IRC log of #maemo for Sunday, 2016-03-27

Palii2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len);00:00
PaliDocScrutinizer05: uboot uses 0x6D and BB_CFG00:00
Palis/and/as/00:00
infobotPali meant: DocScrutinizer05: uboot uses 0x6D as BB_CFG00:00
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Pali$ sudo i2cget -f -y 1 0x4b 0x6d b00:06
Pali0x1b00:06
Pali0x1b would mean 3.1V/1mA00:10
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DocScrutinizer05yes00:11
DocScrutinizer05http://paste.opensuse.org/604068100:13
DocScrutinizer05I wonder what the heck means      Physical Address  0x0000 006D-0x0000 006D00:17
DocScrutinizer05IroN900:/dev# i2cget -f -y 1 0x4b 0x6d b00:19
DocScrutinizer050x1b00:19
DocScrutinizer05oooh, you already said that00:20
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DocScrutinizer05WOW!00:24
DocScrutinizer05IroN900:/dev# i2cset -f -y 1 0x4b 0x6d 0x1f b; i2cget -f -y 1 0x4b 0x6d b; madc 900:24
DocScrutinizer050x1f00:24
DocScrutinizer05Channel 9: 73500:25
DocScrutinizer05IroN900:/dev# madc 900:25
DocScrutinizer05Channel 9: 73500:25
DocScrutinizer05IroN900:/dev# i2cset -f -y 1 0x4b 0x6d 0x1b b; i2cget -f -y 1 0x4b 0x6d b; madc 900:25
DocScrutinizer050x1b00:25
DocScrutinizer05Channel 9: 70900:25
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DocScrutinizer05I guess it's time for a hard reset00:26
DocScrutinizer05messed around with too many random registers of twl403000:26
DocScrutinizer05can't even find what's "physical address 0x12"00:28
DocScrutinizer05to make matters worse I also messed with 0x6b by typo00:28
DocScrutinizer05IroN900:/dev# i2cset -f -y 1 0x4b 0x6d 0x00 b; i2cget -f -y 1 0x4b 0x6d b; madc 900:29
DocScrutinizer050x0000:29
DocScrutinizer05Channel 9: 000:29
DocScrutinizer05my bupbat is a dummy00:29
DocScrutinizer05ooh wait, the ADC only works when BBCHEN00:30
DocScrutinizer05iirc00:30
DocScrutinizer05http://paste.opensuse.org/6410772900:35
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Paliso charging of backup battery is enabled by default01:04
DocScrutinizer05looks like01:06
DocScrutinizer051c01:06
DocScrutinizer05err 1b01:06
DocScrutinizer05wait... I forgot01:07
DocScrutinizer051b, right01:07
DocScrutinizer05and madc 9 clearly follows with zilch delay on my device01:07
DocScrutinizer05which means zilch buffering from bupbat?01:08
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Luke-JrDocScrutinizer05: any hope of Neo900 upgrading specs at all?02:52
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Palifreemangordon: v4.6-rc1-n900 branch is in linux-n900 tree13:49
freemangordonPali: great13:54
freemangordonPali: going to test it13:54
Paliok13:54
freemangordonPali: could you take a look at that gadget oops, I can't figure it out where it comes from13:56
freemangordonPali: I mean - why there is opps?13:57
freemangordon*oops13:57
Palican you send me link to that email thread?13:57
Palilooks like I was not CCed13:57
freemangordonlink?13:57
freemangordonit is on linux-omap13:58
freemangordonPali: http://www.spinics.net/lists/linux-usb/msg135412.html13:58
Pali"Unable to handle kernel paging request at virtual address 6c6c757a"14:00
Palithat?14:00
Palihmmm.... 6c6c757a = "lluz" or "zull"14:03
Palifreemangordon: looks like somebody freed pointer to common...14:07
Palifrom code around it looks like some race condition14:07
Palithis is multithread code14:07
Paliah :-(14:07
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freemangordonPali: yeah, but I was not able to figure out what happens15:05
freemangordonwho frees common and why15:06
freemangordonPali: fsg_unbind() is called twice for every lun15:06
freemangordonalso, I don;t see who terminates that thread15:07
freemangordonthat code is like spaghetti and being multithreaded doesn't help either :)15:07
freemangordonPali: hmm, wait, fsg_bind() is called 2 times as well, so the thread is created twice?!?15:09
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freemangordonPali: seems like  nokia_bind() is called twice, for some reason, so all gadgets are created 2 times15:33
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fishbulbis the yappari dude here?19:21
fishbulbI'm worried about the security of my phone19:21
fishbulband the texts and shit, if people can spend enough time and get shit off my linux machine19:22
fishbulbwhich they can and have19:26
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fishbulbhow hard is whatsapp to hack19:30
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ceenefishbulb: what do you want to know?20:13
fishbulbhow hard is it to "hack" yappari20:13
fishbulbfrom your point of view, realistically20:13
fishbulbor whatsapp or whatever. I mean my end isn't encrypted20:14
ceenewhatsapp is harder, as conversations are ciphered point to point20:14
ceenewith a protocol (textsecure) which, as far as i know, hasn't been broken20:14
ceeneyappari doesn't implement this, however20:14
fishbulbyeah I know20:15
ceeneso all security is based on SSL between your phone and WA servers20:15
ceeneso in that sense, it's as secure as any other ssl enabled website you visit20:15
fishbulbit's a wrapper for a website?20:15
bencohceene: what about key exchange (in textsecure)?20:15
fishbulbI didn't know that20:15
ceenefishbulb: it's not a wrapper, but all communication is done via ssl20:16
fishbulbor did you mean it's as secure.. ok20:16
ceeneyou can't use a browser or anything similar to it to connect to whatsapp20:16
fishbulbso from my end to the server is ssl20:16
ceenebencoh: i don't know how it's done exactly20:16
fishbulband everyone else is encrypted, there have been less problems with dropped messages recently20:17
fishbulbI noticed.20:17
ceeneTextSecure encryption protocol, which combines the Axolotl ratchet, prekeys, and a 3-DH handshake.[36] It uses Curve25519, AES-256, and HMAC-SHA256 as primitives20:18
fishbulbaes25620:18
fishbulbthat's pretty secure in theory20:18
ceeneif i'm not wrong, 3-DH is also what SSH uses to exchange keys20:18
ceeneweakest point on n900 is probably ssl support20:19
ceenecertificates20:19
ceeneand all that20:19
freemangordonPali: hmm, 4.6-rc1 seems pretty buggy :)20:19
freemangordondid you try to boot it on the device?20:19
Palionly in qemu20:20
freemangordonPali: http://pastebin.com/PYuw0SST20:21
Pali"omapfb: dma_declare_coherent_memory failed" is also in qemu20:22
freemangordonI had to disable et8ek8, otherwise it oopses20:22
bencohceene: the thing is, with ssh you either 1. have the remote fingerprint stored locally to check it, or 2. it's your first connection and you need to verify it manually (or blindly trust remote server)20:22
freemangordonbut why it fails?20:22
bencohceene: but I highly doubt whatsapp user are ever confronted to this :)20:23
bencohwhich means that ... they can mitm the first exchange any way they want20:23
bencoh(they == whatsapp)20:23
ceenei guess so, yes20:24
ceenei mean, i'm always talking about a 3rd party intercepting your conversations20:24
ceenei take it as a given that WA can read your messages if they want to20:24
ceenenot that i particularly believe they do, but that they do have the techinical ability is a given20:24
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ceenesince they control the client (well, most of them), they can disable/modify/tamper with the encryption whenever they want, and there's nothing you can do about it20:25
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bencohthat too20:26
freemangordonPali: seems like that one https://lists.01.org/pipermail/linux-nvdimm/2015-August/001796.html20:28
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fishbulbno, 3rd party20:33
fishbulbI don't give a shit about whatsapp reading anything20:33
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freemangordonPali: the bugger is 6b03ae0d42bfecf2536f7967d37e471d98c0b3d220:49
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Paliso need to remove DMA_MEMORY_MAP flag somehow?20:52
freemangordonchange it to DMA_MEMORY_IO20:53
freemangordonIt would've been really nice if someone explained what those flags are supposed to mean20:54
freemangordonPali: ^^^20:55
freemangordonwith that change there is no more error in qemu, going to test on the device20:55
freemangordonPali: did you see my comments ^^^ that g_nokia probe() is called twice?20:58
Paliyes20:58
Palibut do not know why....20:58
freemangordonPali: ok, the DMA_MEMORY_IO change works on the device as well, right now I have "9" playing in mediaplayer :)21:00
freemangordonwhich means tidspbridge works as well, to the extend it did with 4.5 ofc21:00
kerio\o/21:10
keriowho the man21:10
keriofreemangordon is21:10
DocScrutinizer05and Pali21:11
ceenewe are very lucky to have both of them working on n900 instead of something that'll make them rich and famous :)21:12
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