IRC log for #neo900 on 20150223

00:01.36OksanaTimezap?.. I am actually thinking that if a filesystem stored a file as set of time-marked ++--edits (like: created at X/Y/Z, added line ABC at X/Y/Z, edited line ABC to CBA at Χ/Υ/Ζ, and so on), then it would become possible to have time-turner low-level "feature" when you edit files and leave _false timestep_ of edit. Of course, it only works as long as there is no paradox...
00:02.31Palihttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772705
00:02.38Palithere are bugs in TZ parser, nice..
00:03.46OksanaFor example: if there were 11 lines in the file, then some program read the file and put "11" into a different file, then you go time-turn to "the past", add new line to the file, but anybody who knows where to find number of lines (11) will know that time-travelling happened, and increased number of lines by one.
00:04.03Oksanais reading about TZ...
00:05.13Palithis is perfect bug :D if sudoers is configued to allow run as root at least one program, then bugs in TZ parser can be used to obtain root shell
00:05.21Palianother reason to uninstall sudo
00:06.56dos1no root shell so far for this one, just a crash that might be (or not) exploitable
00:07.10Paliuntil somebody find bug in tz parser
00:07.50Palibasically *any* bug which can be triggered by ENV is problematic for sudo
00:08.01kerioyeah and if you find a kernel bug in the linux ip stack you can run code with kernel privs
00:08.09dos1reminds me of ubuntu bug affecting sudo and their pam plugin I've found together with my colleague
00:08.29dos1that was really fun one :)
00:08.38Paliyes, but this is purely bug in sudo
00:08.48dos1http://www.ubuntu.com/usn/usn-1766-1/
00:08.49Palisudo is broken by design
00:09.10dos1pam-xdg-support was calling "rm" when the session was closing
00:09.38Paliin sudo was lot of bugs...
00:09.52dos1so if you have permissions to run something by sudo, you chould point PATH to folder with something called "rm" which would be executed as root
00:09.53Paliand looks like there will be more :D
00:11.45Palihttp://launchpadlibrarian.net/134293866/pam-xdg-support_0.2-0ubuntu1_0.2-0ubuntu1.1.diff.gz
00:11.54Palinow I see that :D
00:13.15Oksanarootsh isn't sudo, I hope?
00:13.23dos1we found it after our sysadmin removed our root accesses we gained earlier. colleague gained it earlier when admin logged in as root on his pc and forgot to logout ;)
00:13.57OksanaFunny...
00:14.16Pali:D
00:14.51PaliI remember days when I copied from network windows NT hashes of login passwords
00:14.55dos1he just added himself to sudoers, while I've added suid-surprises in different places, so I still had my root :D
00:15.02kerioLOL
00:15.11Paliand then with rainbow tables I broke them...
00:15.28keriodoesn't openbsd have sudo
00:22.55Palihttp://blog.erratasec.com/2015/02/extracting-superfish-certificate.html
00:23.08Palilooks like cracking real SSL PEM certificate is not problem :D
00:24.52kerionot when the password is a 7 letters dictionary word
00:44.49DocScrutinizer05IT is mere fun
00:49.11DocScrutinizer05anyway sorry Oksana I'm too tired for interview now. dos1 please use a nonce word for update of webpage, we will provide quite some news later on this very week. Teaser: http://neo900.org/hidden/werner/tmp/hb-20150222.pdf
00:49.25wpwrakwell, but he cheated. he used arcane knowledge. that obscure program called "strings". that sort of stuff should be prohibited.
00:50.06DocScrutinizer05strings? LOL, we had a CVE with that a year ago already, no?
00:51.55wpwrakyeha, that too :)
00:54.53DocScrutinizer05dos1: <highlight> 2 lines up
00:57.55wpwraknow i just wish freescale would respond to my question about SPI inter-byte delay ... they have a jolly mess of different SPI implementations, possibly even confusing themselves
00:58.23DocScrutinizer05*sigh*
00:58.26DocScrutinizer05industry
00:58.49DocScrutinizer05even freescale still is evil indistry
00:58.57DocScrutinizer05s/u/a
00:59.05DocScrutinizer05meh
00:59.08DocScrutinizer05n8
00:59.24wpwrakone of the highlights is that the KL25 has a "simple" SPI (no FIFO, only 8 bits) while the KL26 has a more advanced one. now, the registers are clearly designed to be compatible. same structure, same names, and so on. problem: my code didn't work.
00:59.34DocScrutinizer05got an appointment with train in ~4h
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01:00.40DocScrutinizer05surprise that code designed for raw direct register access didn't work on a fifo
01:00.51DocScrutinizer05;-)
01:01.20wpwraknaw, the FIFO is a) kinda transparent, and b) you can disable it and i didn't even turn it on
01:01.44DocScrutinizer05seems there still are tiny nasty semantic differences
01:01.54wpwrakwell, i eventually discovered that they had shuffled the register addresses between KL25 and KL26.
01:02.02DocScrutinizer05or the TRM is fubar at large
01:02.16DocScrutinizer05ooh, so the latter
01:02.18wpwrakonce i fixed that, the code ran beautifully, as it should
01:04.04DocScrutinizer05anyway seeya folks, I'm wasted from doing nothing, maybe tomorrow I'm more productive
01:04.23DocScrutinizer05n8
01:04.29wpwraksweet dreams ! :)
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03:06.36dal2Hi, is it still possible to donate to reserve future phones, and if so, whom can I pm? :)
04:28.55Oksanadal2: Yes, it is possible. Take a look here: http://neo900.org/donate Whom to contact? IRC - #neo900 on Freenode - look for DocScrutinizer05, dos1 or wpwrak http://neo900.org/contact
04:31.38OksanaTo donors of 100 EUR or more special conditions are offered. [Aka: donation of 100 EUR or more can be counted as 1 pre-order; donation of 200 EUR or more can be counted as 2 pre-orders, if you specify it; and so on]
04:33.42OksanaI donated through SEPA/IBAN bank transfer and included amount into pre-orders into the email I sent afterwards. If you choose Paypal, you are probably going to put amount of pre-orders into payment notes, along with your country...
04:34.11Oksanaamount of* pre-orders
04:49.46dal2Oksana: Thanks.
04:50.42OksanaNo problem
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05:50.43joecoolyou guys still alive?
05:56.42joecoolo i see forum thread, doc got the ebola
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07:22.35wpwrakwhat, all those years of top-notch research and we still don't have anything worse than ebola ? still no disease that spreads by explosion of the very-soon-to-be cadaver ?
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12:41.15DocScrutinizer05offtopic: twinkle revived https://forums.gentoo.org/viewtopic-p-7691090.html#7691090
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17:14.59wpwrakfun, for when triangulation is just too old school: https://www.schneier.com/blog/archives/2015/02/cell_phones_lea.html
17:15.34DocScrutinizer05ugh, that headline...
17:16.35DocScrutinizer05>>use more power to reach a given cell tower the farther it travels from that tower, or when obstacles like buildings or mountains block its signal<< or... your hand ;-P
17:16.56DocScrutinizer05"sorry we cannot locate. User is holding it incorrectly" LOL
17:17.36wpwrakseems that they can filter all that out
17:19.25DocScrutinizer05meh, only in lab testbed conditions. The whole research is basically a hoax
17:21.31DocScrutinizer05>>That correlation [...]  is strong enough that momentary power drains like a phone conversation [...] can be filtered out" - that's bullshit since only a "phone conversation" (or data traffic) would actually create a power demand that's related in any way to the TX power the phone uses
17:22.55DocScrutinizer05so they cannot filter out phone calls, they need them as they are the only more or less (less since there's still silence-detection and no TX during such periods) constant power usage related to that "distance from BTS" they want to calculate
17:24.15DocScrutinizer05for data which also causes TX, it's highly depending on the amount of data and frequency of bursts the usage pattern creates, so no way to use that for detecting "distance to BTS" from battery discharge rate
17:24.31DocScrutinizer05it's a silly hoax, no value for RL
17:26.18DocScrutinizer05<PROTECTED>
17:27.08DocScrutinizer05they did a research under clean testbed conditions
17:29.55DocScrutinizer05they as well could try to detect the "fingerprint" of a location by measuring the accelerometer and detecting pace and jitter of user's steps while walking
17:31.16DocScrutinizer05since "user will walk slower when walking uphil than when walking downhill. And in a crown jitter increases, also when user passing by points of interest which attract attention"
17:31.39DocScrutinizer05s/crown/crowd/
17:32.33DocScrutinizer05traffic signs would create very unique signature too
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19:18.19ShadowJKI find that the power use correlates morr strongly with how many cell towers my operator has fucked up today
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19:25.18DocScrutinizer05hehe
19:28.23bencoh:]
19:32.15DocScrutinizer05it's kinda worrying that Schneier considers it "interesting" and didn't instantly spot the flawed foundation assumptions all this is based on
19:36.34wpwraknaw, i think he's quite right. this is a common pattern: 1) someone discovers a new leak, makes a lab proof of concept, without much real-world relevance. 2) others pick up the idea and refine it. 3) some years later the world finds out about yet another massive espionage operation
19:37.26DocScrutinizer05the concept of this will not fly
19:37.50dal2Hi. I'd like to donate to reserve some phones, a little more than 100 Euro per, too, so that I can help you all out more
19:37.59DocScrutinizer05it cannot get "refined"
19:38.57DocScrutinizer05dal2: that's great and highly appreciated :-) Thanks a lot
19:39.31dal2I have a quick question - I had to take the battery out of my Samsung galaxy once to stop a gsm attack
19:39.55dal2With the hot swap on this one...how long would it take for the power to die out completely? i.e. approx how long will the hot swap capability stay hot?
19:40.03dal2or is there some way to disable the hot swap
19:40.05DocScrutinizer05actually we're about to increase the funds we need to raise (aka "down payments") since we want to source risk parts like the 1GB RAM PoP chip, LEDs which are rare and hard to find, etc
19:41.12DocScrutinizer05dal2: you won't need to remove battery to stop any attack via GSM, the Neo900 can power down the modem reliably without removing battery
19:42.08DocScrutinizer05dal2: anyway hotswap is very very short, only will work when using "magic speed battery swapping" which takes less than 1 second to remove old battery and insret new one
19:42.49dos1dal2: see http://neo900.org/stuff/batswap-quick-procedure.gif
19:43.06DocScrutinizer05http://neo900.org/stuff/media/video/battswap/fastbattswap_slomo.MOV
19:43.53dal2Okay, thanks. So basically, taking the battery out kills the power entirely after like 5 seconds or even less?
19:44.18DocScrutinizer05yes
19:44.40dal2okay cool, that solves my problem :)
19:45.26DocScrutinizer05anyway Neo900 can "kill power entirely" in 0 seconds, for modem
19:46.05dal2cool :)
19:46.15DocScrutinizer05this feature is meant particularly for situations where commonly a "take out battery from any phones you carry" is advised
19:47.18DocScrutinizer05we not only cut the power to modem, we even monitor that it is actually cut and modem is inactive. We do in several independent ways
19:47.59dal2Ah okay.
19:48.54x29adal2: howd u know you were beeing gsm attacked?
19:49.25dal2x29a: I was at HOPE X. Presented on the Project PM panel--Barrett Brown's research group, if you're familiar
19:49.37x29aah
19:49.38dal2x29a: After the phone was hacked, took an image of the phone, got it to a forensics guy
19:49.54dal2x29a: The forensics guy isn't finished yet :( working in his spare time and such, but said it was gsm
19:50.07dal2x29a: he ruled out anything like old malware suddenly turning on, etc.
19:50.29dal2x29a: the phone was taking screenshots and such while being hacked. I was hanging out at the FSF booth too!
19:50.44dal2x29a: I showed it to the sysadmin behind the booth, who said Yep your phone is getting hacked
19:50.48dal2x29a: so then I ripped the battery out
19:50.52x29ai c
19:51.06dal2x29a: I don't know if it was just some hacker screwing around, or the spy contractors who showed up to watch our panel
19:51.22dal2x29a: the contractors recognized some of my work (they snickered at certain parts), so :)
19:51.29dal2*some of my journalism work
19:51.40dal2DocScrutinizer05: sent you a pm
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20:23.35dal2Do LTE modems fall back on GSM if LTE is not available?
20:28.56DocScrutinizer05yes
20:29.13DocScrutinizer05actually they first try UMTS fallback
20:29.38DocScrutinizer05in default config (user can configure this very precisely)
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20:49.48joecooldal2: t-mobile US is actually good example of this in action.... only their branded devices appear to be allowed on the voLTE network... any other phones have to fallback to UMTS or GSM
20:50.12joecooland there are many rural areas that were converted from GSM/EDGE-only to 5mhz width LTE so they could re-use the antennas
20:50.29joecoolin these areas phone needs to send sms and calls over the gsm network
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20:53.19dal2I'm gonna get the Neo900 regardless but another thing I was wondering -
20:53.33dal2on Android, there is an app to auto-record incoming/outgoing calls, something I need as a journalist
20:53.39keriorecaller
20:53.44dal2wonder if something like this exists for Replicant or some other compatible OS
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21:03.19dal2ah cool, recaller, yes thanks
21:12.09DocScrutinizer05another happy cistomer. \o/
21:12.17DocScrutinizer05customer*
21:13.04DocScrutinizer05PP arrived
21:18.27dal2yay! :)
21:18.55dal2Incidentally if anyone's curious, I heard about the Neo900 from that FSF booth at HOPE X
21:19.50DocScrutinizer05FSF? oh wow!
21:20.05DocScrutinizer05didn't think they really noticed us
21:20.09dal2It was a sysadmin named Lisa I think. Not sure if she's still there
21:20.20dal2wasn't a FSF recommendation per se, just hers
21:20.27kerioFSF-senpai noticed us ^_^
21:20.59dal2she was the one working the booth
21:28.33DocScrutinizer05apropos FSF and the much wanted "FOSS radio telephony stack": There's a guy calling himself spacefalcon who is working on Calypso modem chipset and already provides a somewhat working FOSS firmware for it (though of arguable origin). The calypso is a GSM-only chipset the Openmoko Neo Freerunner used. Spacefalcon aiui plans to build his own modem module and it seems plausible he'd use a footprint for such module that would be compatible
21:28.35DocScrutinizer05with the P*S8 modem series we use in Neo900
21:29.59kerioGSM-only, tho
21:30.16DocScrutinizer05so if somebody was really interested in a phone that can do GSM voice, text, data only (not even EDGE), but has a FOSS firmware, they might want to order a Neo900 sans modem and fit a Spacefalcon's FreeCalypso modem in
21:31.40DocScrutinizer05nota bene: Spacefalcon's project is quite a few months behind of Neo900, I don't expect those calypso modems to get available this year
21:32.05DocScrutinizer05actually I dunno at all if this is a serious project
21:32.56DocScrutinizer05Openmoko and Neo900 UG received several mails from spacefalcon where he explained his plans, but don't call _me_ out on it
21:38.34bencohDocScrutinizer05: hmm ... osmocom ?
21:38.49bencoh(is he or his project related in some way ?)
21:40.50DocScrutinizer05anyway the Calypso is a nice example to explain the firmware update issue (FSF so far forbid firmware updates when the firmware shipped within the chip was non-FOSS). In Neo Freerunner (GTA02) the Calypso originally been considered non-update-able. FSF was happy. Then I published updater tool and MOKO11 firmware to fix some bugs. I guess FSF must have missed that or openmoko would have received some complaint from them. BUT... then the
21:40.51DocScrutinizer05OSMOCOM et al firmwares came up and they are "FOSS" of sorts, and suddenly calypso is a good chip and Freerunner a good phone again
21:41.07DocScrutinizer05bencoh: only faintly if at all
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21:45.32DocScrutinizer05with FSF strict RYF rules, the calypso in Freerunner wouldn't have been updateable based on some hw that forbid any such update, and neither the update to fix nasty bugs nor any FOSS firmware ever would've happened
21:54.09dos1spacefalcon's firmware is not FOSS though; it's based on leaked sources
21:54.25dos1it's FOSS in his point of view that disregards any laws at all :)
21:54.35DocScrutinizer05yes
21:55.01dos1of course osmocombb is "truly" FOSS
21:55.02DocScrutinizer05I named it "though of arguable origin"
21:57.08DocScrutinizer05osmocom is absolutely clean afaik
21:57.31DocScrutinizer05and from highly qualified folks who know their stuff
21:58.13DocScrutinizer05but not intended dor daily phone use anyway
21:58.17DocScrutinizer05for*
22:11.29OksanaMoin! ~~batswap quick procedure looks like the ways I change battery in my N900... Kukuku~~
22:11.31OksanaFreeCalypso sounds cool. Would it be possible to detach Calypso modem (ball-mounted, right?) with hot air or something, later, and put FreeCalypso onto Neo900? I understand that Calypso-open-source-firmware is of arguable origin, but would it be possible for FreeCalypso to have FOSS firmware (of non-arguable origin?). GSM voice, SMS, speaking-with-tower would be quite enough - it's not like...
22:11.33Oksana...I use cellular Internet - though cellular fax would be nice to have...
22:11.34Oksanaosmocombb - not intended dor daily phone use anyway - why?
22:14.18dos1Oksana: yup, FreeCalypso can have OsmocomBB, however, it's not designed as a daily phone; it's more done as a research and diagnostic tool
22:14.41dos1why? it's simple: you can't use it legally without proper permissions
22:15.40dos1so osmocombb project doesn't really care about "normal user everyday usage" (but of course if you insist you could do that)
22:16.45dos1one of the examples of such behaviour is that osmocombb doesn't really run its code in best possible places, implementing a lot of stuff in general cpu while original firmware uses dsps and coprocessors heavily
22:18.19DocScrutinizer05I don't know if OsmocomBB has a codec at al
22:18.23DocScrutinizer05all*
22:18.54DocScrutinizer05Oksana: Neo900 has no calypso modem, we use Gemalto/Cinterion P*S8
22:18.59dos1yeah, it might be even incomplete for such "normal usage"
22:19.04DocScrutinizer05just in case
22:19.42dos1oh, yeah, detaching Calypso to replace it with FreeCalypso doesn't make much sense :)
22:19.48DocScrutinizer05... re >>Would it be possible to detach Calypso modem<<
22:19.55dos1FreeCalypso is a spacefalcon's project which uses Calypso
22:20.17DocScrutinizer05Calypso is an ancient TI phone chipset
22:20.27DocScrutinizer05really ancient like stone
22:20.42dos1it was used in Openmoko Neo Freerunner
22:20.49DocScrutinizer05prlly older than 15 years
22:20.55dos1and earlier Neo1973
22:21.19dos1and some old line of Motorola dumbphones AFAIR
22:22.02dos1feature wise it was already pretty obsolete during Openmoko times
22:22.37DocScrutinizer05yes, Moto C112 or somesuch
22:23.21OksanaAh, confused with the names. Since Neo900 uses Gemalto, would its footprint be suitable for FreeCalypso to be attached in its place?
22:23.47DocScrutinizer05and yeah, EDGE was a breeze after using Freerunner for some time, on plain GPRS datarate
22:23.49OksanaSo, FreeCalypso isn't a new modem-hardware - it's new firmware for existing modem?
22:23.55DocScrutinizer05iirc
22:25.03DocScrutinizer05FreeCalypso might be what Spacefalcon calls his project consisting of building some pirated software/firmware and building a modem based on Calypso chipset
22:26.08DocScrutinizer05and I already elaborated that he received suggestion from my side to plan for a compatible footprint and we will plan for electrical compatibility
22:26.51DocScrutinizer05yes, you could unsolder the P*S8 though it would be wiser to order a phone without modem
22:27.08DocScrutinizer05since the modem definitely is junk after desoldering it
22:27.56OksanaSo FreeCalypso modem would be firmware compatible with Calypso and footprint compatible with Gemalto?
22:28.07DocScrutinizer05sort of
22:28.10DocScrutinizer05aiui
22:28.44DocScrutinizer05this spacefalkon guy is veeery talkative (mails tend to be a 1000 lines or more) and sometimes hard to follow his thoughts
22:29.16Oksanawill consider having one or two phones without modem, depending on progress of FreeCalypso by the time Neo900 is going to be manufactured
22:29.26DocScrutinizer05anyway he recently asked for PCB layout files of OM Freerunner, to copy the modem layout
22:29.41DocScrutinizer05Sean promised to share
22:30.16DocScrutinizer05(progress of FreeCalypso) don't hold your breath
22:34.16Oksana:-)
22:44.19DocScrutinizer05Oksana: would you feel like (co-)authoring a new newsletter?
22:45.30DocScrutinizer05Oksana: we (werner, me) are busy right in this very moment to prepare a HackerBus whitepaper to publish this week
22:46.33DocScrutinizer05Oksana: I also made some progress to source N900 for those customers who want a complete device
22:46.47Oksana:-)
22:50.15DocScrutinizer05we will also officially publish the new down payment amounts we need to proceed with sourcing all that stuff. Total for NeoN board (incl initial "donation") will be around 200EUR or 250. For N900 we need an additional 150 (though we hope to get the stuff cheaper than that. It's just the maximum and there won't be any "wasted money" since it all counts for the final invoice anyway)
22:53.09DocScrutinizer05so the regular customer who's interested in a complete device will get asked to upgrade his down payment to a total of ~400EUR, which should be ~50% +/- a few, of the final sales price
22:54.48OksanaOk, what should be in newsletter? Received camera switches; tested 1GB-RAM, and had to change xloader-uBoot to work with it - does it work now? Something up with IR-photodiode? HackerBus whitepaper going to be published soon? Approximate down-payments for pre-order (250EUR for NeoN board, 400 EUR for complete Neo900 device)?
22:54.53DocScrutinizer05ooh, and some time after that campaign finished, the preorder window will close quite naturally, since we start sourcing parts in needed quantities then
22:55.39OksanaHow many pre-orders are there already? How many more can fit in?
22:56.10DocScrutinizer05yes, that sounds all quite good. Maybe except the IR-photodiode stuff which isn't really newsworthy yet. We will publish an updated IR whitepaper quite soon though
22:57.56DocScrutinizer05that's a two questions, first is easy: around some 450. The second is almost impossible to answer since we don't know until it's "too late". We will try to keep preorder window open as long as possible and we also will source excess parts as seems economically reasonable
22:59.16DocScrutinizer05ooops, take that 450 figure with a grain of salt and please don't quote me on it, I haven't checked for so long now, I might have gotten it wrong
22:59.43dos1more like 400 I think
23:00.41DocScrutinizer05quite possible, yes
23:01.37DocScrutinizer05PP: 8 in Jan, 5 in Feb
23:01.45DocScrutinizer051 or 2 on bank account
23:02.06DocScrutinizer05Oksana added a 3 with one payment though
23:02.14DocScrutinizer05today 2 with one payment
23:09.07*** join/#neo900 phre4k (~phre4k@55d432b9.access.ecotel.net)
23:21.48*** join/#neo900 che12 (~che@p5B071053.dip0.t-ipconnect.de)
23:40.05*** join/#neo900 che12 (~che@n206.tum.vpn.lrz.de)
23:50.49Oksanathinks that Calypso as main processor is an odd goal - it's going to be as antique as floppy disk in 21st century...

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