February 2011 - OpenBSC - lists.osmocom.org

by jason mercury

I have some questions: 1) When I start bsc_hack bsc_init.c first establishes OML link and initializes the bts then it establishes RSL link and bts starts broadcasting. However, it takes so much time to start the bts. Instead of this I want to do the following: it establishes OML link at the beginning and only once, then when i want to start broadcasting it establishes just the RSL link and bts will start faster since i don't have to wait for OML link. What should be done for this? 2) If i send one or two word messages from telnet interface it is okay. But if i send a longer message the phone could't receive the end of the message correctly(last words may be incomplete). Did any one encounter with this problem? What is wrong with me? 3) Could I send SMS in which extension of the sender is text not integer. For example, i want to send an information SMS that this is a test network. For this purpose i want to send an SMS from 'OpenBSC'. I set the extension of the first subscriber in database as text and tried to send the SMS but SMS wasn't delivered. What should i do? 4) Can i add SMS externally to SMS table of database? Thanks. Jason

11 years, 4 months

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spec download

by Joe Eggleston

Hi all, Maybe I'm missing something, but I haven't found an easy way to download pdf versions of all the 3gpp specs. Why would you want to do that? Well, dealing with MS-Word format is a pain. And, there's no online full-text search of all the specs. So, I threw together a quick web scraper to pull down the latest version of all the 3GPP specs from the ETSI web site in pdf format. Thought it might be useful to others - http://monkey.org/~joe/files/fetch_3gpp.py Feel free to contact me if you have any trouble using it. -Joe

13 years, 1 month

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[PATCH] sms: introduce new command to trigger the sending process for specific subscribers only

by Nico Golde

Hi, I'm not sure how useful this patch is for others, I found it quite useful during my sms testing. See attached patch file. Cheers Nico

13 years, 2 months

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Timing Advance

by Nordin

Hello guys, I haven't been busy with openbsc for a while, however, I was following the mailing-list. I have the following question, is timing advance also implemented for the nanoBTS? Cause I don't really know where to look in the sources, thank you.

13 years, 2 months

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Re: How to download firmware and configure NanoBTS the first time...

by Ravi Shankar

Nothing required actually. The firmware is preloaded.Just configure the Nanobts using the installation CD given. Some jar file is there for configuring part. > https://lists.osmocom.org/mailman/listinfo/openbsc > or, via email, send a message with subject or body 'help' to > openbsc-request(a)lists.osmocom.org > > You can reach the person managing the list at > openbsc-owner(a)lists.osmocom.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of OpenBSC digest..." > > > Today's Topics: > > 1. Re: How to download firmware and configure NanoBTS the first > time... (Harald Welte) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 16 Feb 2011 22:52:33 +0100 > From: Harald Welte <laforge(a)gnumonks.org> > Subject: Re: How to download firmware and configure NanoBTS the first > time... > To: Omar Atia <omar.atia(a)its.ws> > Cc: 'Peter Hasse' <peter.hasse(a)fokus.fraunhofer.de>, > openbsc(a)lists.osmocom.org > Message-ID: <20110216215233.GO25856(a)prithivi.gnumonks.org> > Content-Type: text/plain; charset=us-ascii > > Omar, > > how should we know in what you get your particular nanoBTS units delivered? > > You have to talk to your supplier about that. > > For all I know, it is customary for the nanoBTS to ship with pre-installed > firmware. Based on your support contract with ip.access you may receive > firmware updates from time to time, which you can then apply either using > tools from ip.access or using our ipaccess-config. Our tool is of course > not officially recognized/authorized/recommended/endorsed for this purpose. > > Regards, > Harald > -- > - Harald Welte <laforge(a)gnumonks.org> > http://laforge.gnumonks.org/ > > ============================================================================ > "Privacy in residential applications is a desirable marketing option." > (ETSI EN 300 175-7 Ch. A6) > > > > ------------------------------ > > _______________________________________________ > OpenBSC mailing list > OpenBSC(a)lists.osmocom.org > https://lists.osmocom.org/mailman/listinfo/openbsc > > > End of OpenBSC Digest, Vol 26, Issue 15 > *************************************** >

13 years, 2 months

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[PATCH] sms: introduce new command to trigger the sending process for specific subscribers only

by Nico Golde

--- openbsc/src/vty_interface_layer3.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-) diff --git a/openbsc/src/vty_interface_layer3.c b/openbsc/src/vty_interface_layer3.c index a575274..6cb9cbf 100644 --- a/openbsc/src/vty_interface_layer3.c +++ b/openbsc/src/vty_interface_layer3.c @@ -206,6 +206,24 @@ DEFUN(show_subscr, return CMD_SUCCESS; } +DEFUN(subscriber_send_pending_sms, + subscriber_send_pending_sms_cmd, + "subscriber " SUBSCR_TYPES " ID sms pending send", + SUBSCR_HELP "SMS Operations\n" "Send pending SMS\n") +{ + struct gsm_network *gsmnet = gsmnet_from_vty(vty); + struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]); + struct gsm_sms *sms; + + sms = db_sms_get_unsent_by_subscr(gsmnet, subscr->id, UINT_MAX); + if(sms) + gsm411_send_sms_subscr(sms->receiver, sms); + + subscr_put(subscr); + + return CMD_SUCCESS; +} + DEFUN(subscriber_send_sms, subscriber_send_sms_cmd, "subscriber " SUBSCR_TYPES " ID sms send .LINE", @@ -766,6 +784,7 @@ int bsc_vty_init_extra(void) install_element(ENABLE_NODE, &smsqueue_max_cmd); install_element(ENABLE_NODE, &smsqueue_clear_cmd); install_element(ENABLE_NODE, &smsqueue_fail_cmd); + install_element(ENABLE_NODE, &subscriber_send_pending_sms_cmd); return 0; } -- 1.7.4.1 --fdj2RfSjLxBAspz7--

13 years, 2 months

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AW: fix of chan_lcr / new socket interface for openbsc

by Andreas.Eversberg

hi harald, i would also suggest to combine mncc.h of openbsc and osmocom-bb first, and move it to libosmocore. this way the LCR (or other mncc_socket client) does not depend on any files of openbsc and osmocom-bb, just on libosmocore. because i like to use the same socket interface for osmocom-bb, i would suggest to to put mncc_sock.c into libosmocore too, so it must not be implemented twice. then i would make lcr to be able to connect to both osmocom-bb and openbsc sockets. finally there is no more polling of file descriptor required at lcr. if you agree, can you move the code to libosmocore? i will work on the socket configuration and see what i can do with the versioning. andreas -----Ursprüngliche Nachricht----- Von: Harald Welte [mailto:laforge@gnumonks.org] Gesendet: Dienstag, 22. Februar 2011 13:22 An: Andreas.Eversberg Cc: openbsc(a)lists.gnumonks.org Betreff: Re: fix of chan_lcr / new socket interface for openbsc Andreas, thanks for integrating the mncc socket patch into lcr. I would personally like to see the following improvements: * add some (preferrable automatically computed) version to the mncc, to make sure you cannot run lcr + bsc_hack built from a different mncc.h file. We could do something like a md5sum over the header at compilation time, stored in both openbsc and lcr. Once they connect the mncc socket, they request the remote side md5-value and compare it with the local-side value. If they don't match, print an error message and exit the program. * make the socket path configurable, which is required for running multiple instances of openbsc+lcr on the same machine. If you (or anyone else on this list) happens to have some time to work on that, it would be greatly appreciated. Regards, Harald

13 years, 2 months

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fix of chan_lcr / new socket interface for openbsc

by Andreas.Eversberg

hi, the broken chan_lcr is now fixed in the "develop" branch of lcr git. i have tested it with asterisk 1.8.1. the locking seems to be improved in this asterisk version. i could not run it in a deadlock, as i could with asterisk 1.6. i would suggest to try this out, but please keep your current asterisk and lcr sources. if all works fine, i would like to merge the "develop" branch into the "master" branch soon. for the gsm users: the second change in the "develop" branch is the socket interface between openbsc and lcr. thanks to harald welte for providing this patch. instead of linking openbsc to lcr, openbsc runs it's own process. (using bsc_hack as usual) lcr connects to a socket of openbsc. with it, the gsm.conf became obsolte and has been removed from lcr. in order to run lcr with openbsc ("master" branch of openbsc) : bsc_hack -P -m -l <sqlite-database> -c <openbsc-config> -P is required to enable rtp proxy for use with ipaccess bts. -m is required to allow call control via socket interface to get lcr from "develop" branch, do: git-clone git://git.misdn.org/git/lcr.git/ cd lcr sh checkout-branch.sh develop regards, andreas

13 years, 2 months

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New utility for drawing protocol ladder diagrams

by Harald Welte

Hi! With the help of graphviz, I have written a small perl-based tool that allows you to generate ladder diagrams. It can be found at git://git.osmocom.org/gen_ladder.git For your reference, I'm attaching a sample input and output file. The bent/curved arrows are a result of graphviz trying to indicate that the message is between e.g. MS and MSC and 'bypasses' BTS and BSC. I'm still waiting for somebody with more graphviz skills to make this an option. Hope this is useful for some of you... -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

13 years, 2 months

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Possible error in libosmocore

by Daniel Willmann

Hello, I just stumbled over the following change in libosmocore diff --git a/src/vty/Makefile.am b/src/vty/Makefile.am index 7353ab8..8d730c3 100644 --- a/src/vty/Makefile.am +++ b/src/vty/Makefile.am @@ -10,5 +10,5 @@ lib_LTLIBRARIES = libosmovty.la libosmovty_la_SOURCES = buffer.c command.c vty.c vector.c utils.c \ telnet_interface.c logging_vty.c -libosmovty_la_LIBADD = $(top_builddir)/src/libosmocore.la +libosmovty_la_LIBADD = -losmocore $(top_builddir)/src/libosmocore.la endif from commit 2822296d The -losmocore seems wrong as it is the library we're building here and it's not necessarily already installed. If I remove that part libosmocore builds for me again. Regards, Daniel Willmann

13 years, 2 months

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Legal usage without a carrier-licence?

by Jay R. Worthington

Hi, as probably for most of us an official (testing) licence is out of reach, is there a "workaround" for this problem? - Is there some part of the official gsm bands that overlaps with local ISM or other not-so-tightly-regulated frequencies? (i.e, GSM1900 seems to have a small part that's not used by DECT...) - Are there any "standard" gsm handsets that could be modified (preferably in software) to work at 2,4GHz? - Is UMA/GAN (http://en.wikipedia.org/wiki/Generic_Access_Network) something that could be used with OpenBSC? As far as i understand the specification, UMA is GSM Layer 3 over an GPRS/IPSEC tunnel to the BSC, so all the GSM-Goodies should be there. I realize the first two options would not exactly make it legal, but i'd prefer the wrath of my neighbors over the suicide-squad from a carrier or regulatory agency ;). Any comments? Regards, Jay

13 years, 2 months

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Re:How to run openbsc on nanoBTS

by Ravi Shankar

Dear sir I am new to openbsc.I have two NanoBTS(165cu).I'm facing some difficulty which I'm summarizing below I'm using Ubuntu10.04 1) Can we proceed with one nanobts.? 2)I've configured bts ip,unit id, oml ip of one bts.But not able to get the firmware. How to get it and configure for NanoBTS?? 3)how to run openbsc ?? Please suggest the procedure to run the openbsc. Thanks

13 years, 2 months

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Proposed OpenBSC application interface

by Harald Welte

Hi! Collin Mulliner, Tobias Engel and myself have been meeting yesterday to discuss a generic application interface for OpenBSC. They are both doing security analysis and want to achieve a clean way how an external application can get access to a more or less transparent communication channel to the phone. The purpose of this is to be able to send intentionally malformed packets to the mobile phone GSM stack at various different levels within the stack. As of now, they have both hacked some custom code into openbsc that gets them half way where they want to be - but not quite all the way. The requirements can be summarized as follows: 1) Ability to establish a SDCCH or TCH channel by paging the phone As of now, the 'silent call' feature from the VTY already does this. 2) Ability to send arbitrary layer3 protocol messages to the phone Adding this is relatively easy (use rsl_sendmsg on the lchan from the silent call) 3) Ability to receive responses from the phone, as well as error conditions such as 'readio link failure'. We don't have a solution for this yet, and we also have no clean way to identify what might be a response from the phone to the external app, and what might be a message from the phone to the normal network code in OpenBSC 4) Ability to selectively disable partial protocol handling in OpenBSC. Let's say you want to play with the mobile phone call control implementation. In this case, you want to make sure all CC related messages go from/to the external program and not from the regular OpenBSC network code. So what I've been thinking of as a solution to the problem: * store a bypass_flags bitmask related to the subscriber structure, where we indicate values such as BYPASS_RR, BYPASS_MM, BYPASS_CC, BYPASS_SAPI3. * if we process an incoming message from the MS in gsm0408_rcvmsg(), we check if a bypass flag matching the message is found. If yes, forward the message to the external program * if we want to send a message from our own protocol stack to the MS, we check if a bypass flag matching the message is found. If yes, we drop the message that we were about to send. * any messages received from the application will be forwarded to the MS The application interface protocol will likely have a close resemblance to RSL RLL. We need to exchange the following primitives with the application, like: * ESTABLISH REQUEST -- app requests a channel be established to MS (by IMSI) * ESTABLISH CONFIRM -- network confirms a channel has been established * ESTABLISH INDICATION -- network tells app connection was made by MS * [UNIT] DATA REQUEST -- app requests data to be sent to MS * [UNIT] DATA INDICATION -- network indicates data was received from MS * ERROR INDICATION -- network tells app something went wrong * RELEASE REQUEST -- app asks network to release channel * RELEASE CONFIRM -- net tells app that channel was released (as rqd) * RELEASE INDICATION -- net tells app that channel was released (by MS) The channel_number of RSL (indicating on-air timeslot) doesn't make much sense in this context, of course. The link_identifier on the other hand is great as it allows the app to indicate SDCCH/FACCH or SACCH as well as the SAPI. The actual RSL-like protocol would be encapsulated by UDP and available on a socket of the MSC. What do you think? Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

13 years, 2 months

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"Dial up networking" config

by Chris Rankine

For our ongoing experiment, we are hoping to tether some laptops onto the EDGE connection, either through a USB style dongle or a USB cord into a phone that allows it to be treated like a modem (And for some old school phones, maybe even a Serial port connection). These situations require a number to be dialed, what I believe is a USSD code, and sometimes a username and password to be entered. I am not talking about newer smart phones where the connection is sometimes shared using advanced drivers. Has anyone been able to do this with OpenBSC? Chris Rankine

13 years, 2 months

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Ericsson RBS2308 support / Status on LAPD

by Harald Welte

Hi all, Some people have been working together in order to finally start with support of the Ericsson RBS2308 (and similar models) in OpenBSC. The biggest issue so far is bringing up the actualy LAPD on the E1/T1 link. It seems Ericsson is using some dynamic timeslot configuration between BSC and BTS, so unlike e.g. Siemens, you cannot explicitly configure the OML E1 timeslot on the BTS using local configuration tools. The current working assumption is: Somehow the BSC produces bit-patterns on the E1 link and uses them to let the BTS know where to start LAPD for OML. One contributor was friendly enough to do raw bit-traces of a Racal 6113 connected to the Ericsson RBS, and they look like this: Racal to BTS Initialization openbsc:/etc/dahdi# cat /dev/dahdi/1 | hexdump 0000000 aaaa aaaa aaaa aaaa aaaa aaaa aaaa aaaa * 00092e0 aaaa aaaa aaaa aaaa aaaa aaaa aaaa 55aa 00092f0 ffff ffff ffff ffff ffff ffff ffff ffff * 0009600 ffff ffff ffff ffff ffff ffff ffff 7e7e 0009610 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e * 00096b0 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e 5f7e 00096c0 3e5f 49ce cfef cfcf cfcf cfcf cfcf cfcf 00096d0 cfcf cfcf cfcf cfcf cfcf cfcf cfcf cfcf * I've written a small C program to do soft-hdlc decode. * a pattern of alternating bits (0xaa) * a pattern of all-1 bits(0xff) * a sequence of FLAG symbols (01111110) * a HDLC message FA 7D 7F 4E F2, which is a TEI=62/SAPI=62 SABME (SAPI 62 / TEI62 is configured for OML on the BTS) The interesting part is: 1) this is a SABME from BSC to BTS, whereas GSM 08.56 specifically says the BTS is the TE and the BSC the NT 2) we have not seen any TEI manager related messages(L2ML) Keep alives afterwards, about every 8 seconds 001d5e0 cfcf cfcf cfcf ebcb 04e4 a805 f323 f3f3 001d5f0 f3f3 f3f3 f3f3 f3f3 f3f3 f3f3 f3f3 f3f3 * 0031630 f3f3 f2f3 f9fa 0101 086a fcfc fcfc fcfc 0031640 fcfc fcfc fcfc fcfc fcfc fcfc fcfc fcfc * 0045680 fcfc fcfc fcfc fcfc fcfc fcfc bebe 4040 0045690 825a 3f3f 3f3f 3f3f 3f3f 3f3f 3f3f 3f3f 00456a0 3f3f 3f3f 3f3f 3f3f 3f3f 3f3f 3f3f 3f3f * 00596e0 3f3f 2f3f 90af 1610 8fa0 cfcf cfcf cfcf 00596f0 cfcf cfcf cfcf cfcf cfcf cfcf cfcf cfcf * 006d730 cfcf cfcf cfcf cfcf cbcf e4eb 0504 23a8 006d740 f3f3 f3f3 f3f3 f3f3 f3f3 f3f3 f3f3 f3f3 * 0081790 faf2 01f9 6a01 fc08 fcfc fcfc fcfc fcfc 00817a0 fcfc fcfc fcfc fcfc fcfc fcfc fcfc fcfc * 00957e0 fcfc fcfc fcfc befc 40be 5a40 3f82 3f3f 00957f0 3f3f 3f3f 3f3f 3f3f 3f3f 3f3f 3f3f 3f3f If you decode this, you get FA 7D 01 01 AD 20 (LAPD RR) FA 7D 01 01 21 AC (LAPD RR) FA 7D 01 01 AD 20 (LAPD RR) FA 7D 01 01 AD 20 (LAPD RR) FA 7D 01 01 AD 20 (LAPD RR) FA 7D 01 01 AD 20 (LAPD RR) FA 7D 01 01 AD 20 (LAPD RR) If we look at the BTS to Racal 6113 side: Initialization openbsc:/etc/dahdi# cat /dev/dahdi/1 | hexdump 0000000 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 * 000fe00 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 e5e7 f3f5 000fe10 1039 f971 f9f9 f9f9 f9f9 f9f9 f9f9 f9f9 000fe20 f9f9 f9f9 f9f9 f9f9 f9f9 f9f9 f9f9 f9f9 * Keep Alives, every 8 seconds 0023e40 f9f9 f9f9 f9f9 f9f9 f9f9 7c7d 8080 04b5 0023e50 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e * 0037ea0 5f5f 2020 412d 9f1f 9f9f 9f9f 9f9f 9f9f 0037eb0 9f9f 9f9f 9f9f 9f9f 9f9f 9f9f 9f9f 9f9f * 004bef0 9f9f 9f9f 9f9f 9f9f 979f c8d7 0b08 4750 004bf00 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 * 005ff40 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 f5e5 005ff50 02f2 d402 f911 f9f9 f9f9 f9f9 f9f9 f9f9 005ff60 f9f9 f9f9 f9f9 f9f9 f9f9 f9f9 f9f9 f9f9 * 0073fa0 f9f9 f9f9 f9f9 7c7d 8080 04b5 7e7e 7e7e 0073fb0 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e * 0087ff0 7e7e 7e7e 7e7e 7e7e 7e7e 7e7e 5f7e 205f 0088000 2d20 1f41 9f9f 9f9f 9f9f 9f9f 9f9f 9f9f 0088010 9f9f 9f9f 9f9f 9f9f 9f9f 9f9f 9f9f 9f9f * 009c050 9f9f 9f9f 979f c8d7 0b08 4750 e7e7 e7e7 009c060 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 e7e7 * Decoded, we get: FA 7D 73 60 3A (LAPD UA) FA 7D 01 01 AD 20 (LAPD RR) FA 7D 25 25 AD 20 (LAPD unknown??) FA 7D 01 01 AD 20 (LAPD RR) FA 7D 01 01 AD 20 (LAPD RR) FA 7D 01 01 AD 20 (LAPD RR) FA 7D 01 01 AD 20 (LAPD RR) FA 7D 01 01 AD 20 (LAPD RR) So as a summary, it seems that 1) the BSC applies some magic pattern (0xaa / 0xff) 2) the BSC establishes the LAPD session for OML TEI/SAPI 3) there is no L2ML, contrary to lots of Ericsson Abis documentation that you can find online. We'll continue our attempts and see if we can get the OML up... -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

13 years, 2 months

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data

by Hans Witvliet

This is probably completely off-topic, but can thoses nano-bts also be used for data, instead of voice? I don't mean sms, but access to email and so-on. It is not about performance, but being able to test gsm-dongles for wireless internet. (not wifi) Hans

13 years, 2 months

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creating primary trx

by Thomas Ansorg

hello my 2nd bs-11(bts 1) has a defective trx0, so no c0 can be created. lets have a look at gsm_bts_trx_alloc in gsm_data.c: i changed trx->bts = bts; trx->nr = bts->num_trx++; trx->nm_state.administrative = NM_STATE_UNLOCKED; to trx->bts = bts; if(bts->nr == 1) {trx->nr = 1;} else {trx->nr = bts->num_trx++;} trx->nm_state.administrative = NM_STATE_UNLOCKED; in gsm_bts_alloc, the primary trx should be created then, in the case of bts 1 starting at trx1, since trx0 dont exist unfortunately, i get a general protection fault :-( hints very velcome! T. -- Wer Rechtschreibfehler findet, darf sie behalten!

13 years, 2 months

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CCCH on C0?

by Thomas Ansorg

hi list, i came over line 523 in gsm_data.h: /* CCCH is on C0 */ struct gsm_bts_trx *c0; could this be the reason why a bs-11 without aktivated trx0 dont work / isnt seen by handy? T. -- Wer Rechtschreibfehler findet, darf sie behalten!

13 years, 2 months

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Question about Dahdi system.conf

by Gus Bourg

Hi, I've been playing with Dahdi and OpenBSC (I have an old T100P card) and something I'm a little confused about is what is the proper configuration for system.conf? Does dahdi itself take care of the hdlc/lapd signalling (in which case I'd expect the signalling channel to be set as dchan in /etc/dahdi/system.conf) or is openbsc taking care of the hdlc/lapd signalling (in which case I'd expect the signalling channel to be set as clear)? Thanks, Gus Bourg

13 years, 2 months

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OpenBSC DAHDI support now in master

by Harald Welte

Hi! Today I've been working on improving + cleaning up the DAHDI work that had been done last year by Xavier Carcelle and Matthew Fredrickson, which in turn uses some simplistic LAPD implementation by Oystein Homelien. It now seems to be working fine, at least for my TE110P card and a BS-11 in 2-TRX configuration. Haven't tried multi-drop yet. All you need to do is to * make sure your dahdi/user.h is found in the include path * build openbsc * configure your /etc/dahdi/system.conf according to your T1/E1 physical setup * check that dahdi_tool shows no Alarms for the physical line * use e.g. openbsc.cfg.1-1 as sample and change 'e1_line 0 driver misdn' to 'e1_line 0 driver dahdi' Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

13 years, 2 months

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[ANN] Config file change with mISDN / BS-11

by Harald Welte

Notice to all OpenBSC users with mISDN / BS-11: I've had to introduce some new config file statements in order for the upcoming DAHDI support. This means if you update beyond git revision 3016d9f299ea4cfc8961376d20862b9418cfb059, openbsc will not start with an old 'openbsc.cfg' file. You will have to add the following two lines to make it work again (like shonw in the new openbsc.cfg.1-1): ============== e1_input e1_line 0 driver misdn ============== Sorry for that inconvenience. Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

13 years, 2 months

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[semi-OT] iPhone SIM access via AT+CSIM

by Jens David

Hello all, I am trying to implement a bluetooth RSAP daemon for the iPhone platform. I read your description on http://openbsc.osmocom.org/trac/wiki/A5_GSM_AT_tricks . Unfortunately it does not seem to work on my phone. It always returns error code 0x6E00 for class 0xA0 (GSM application) commands: > AT+CSIM=14,"A0A40000023F00" > +CSIM: 4,"6E00" Which iPhone version and "baseband" firmware was used when doing these experiments? Any further tips? By the way, it is better to use one of the virtual serial lines, e.g. /dev/dlci.spi-baseband.extra_13 to access the X-Gold 608 when doing normal stuff rather than using the real UART interfaces (/dev/tty.debug etc.) because one does not need to unload CommCenter to have a reliable connection. --j -- Jens David, DG1KJD jens.david(a)jens-david-consulting.com http://www.jens-david-consulting.com

13 years, 2 months

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[PATCH] sms: introduce new command to trigger the sending process for specific subscribers only misc: remove unused rc variable in subscriber_send_sms_cmd

by Nico Golde

--- openbsc/src/vty_interface_layer3.c | 18 +++++++++++++++++- 1 files changed, 17 insertions(+), 1 deletions(-) diff --git a/openbsc/src/vty_interface_layer3.c b/openbsc/src/vty_interface_layer3.c index 526ae9e..b6ada71 100644 --- a/openbsc/src/vty_interface_layer3.c +++ b/openbsc/src/vty_interface_layer3.c @@ -206,6 +206,22 @@ DEFUN(show_subscr, return CMD_SUCCESS; } +DEFUN(subscriber_send_pending_sms, + subscriber_send_pending_sms_cmd, + "subscriber " SUBSCR_TYPES " ID sms pending send", + SUBSCR_HELP "SMS Operations\n" "Send pending SMS\n") +{ + struct gsm_network *gsmnet = gsmnet_from_vty(vty); + struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]); + struct gsm_sms *sms; + + sms = db_sms_get_unsent_by_subscr(gsmnet, subscr->id, UINT_MAX); + if(sms) + gsm411_send_sms_subscr(sms->receiver, sms); + + return CMD_SUCCESS; +} + DEFUN(subscriber_send_sms, subscriber_send_sms_cmd, "subscriber " SUBSCR_TYPES " ID sms send .LINE", @@ -340,7 +356,6 @@ DEFUN(subscriber_ussd_notify, struct gsm_subscriber_connection *conn; struct gsm_network *gsmnet = gsmnet_from_vty(vty); struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]); - int rc; int level; if (!subscr) { @@ -767,6 +782,7 @@ int bsc_vty_init_extra(void) install_element(ENABLE_NODE, &smsqueue_max_cmd); install_element(ENABLE_NODE, &smsqueue_clear_cmd); install_element(ENABLE_NODE, &smsqueue_fail_cmd); + install_element(ENABLE_NODE, &subscriber_send_pending_sms_cmd); return 0; } -- 1.7.2.3 --0OAP2g/MAC+5xKAE--

13 years, 2 months

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GPRS - local and foreign TLLIs

by Luca Melette

Hello everybody, after setting up a nanoBTS with OpenBSC/SGSN/GGSN, I had some troubles trying to connect my smartphone to the GPRS cell. Investigating the BTS-to-SGSN traffic, I saw that the frames sent by the SGSN were all marked with the same N(U) value (at LLC layer), the value was 0. With some debug, I found that the there was a mismatch in the TLLI storage, used to keep the status of attached terminals. The mentioned code is contained in gprs_llc.c, involving LL Entity functions and gprs_llc_tx_ui(). /* look-up or create the LL Entity for this (TLLI, SAPI) tuple */ lle = lle_by_tlli_sapi(msgb_tlli(msg), sapi); if (!lle) { struct gprs_llc_llme *llme; LOGP(DLLC, LOGL_ERROR, "LLC TX: unknown TLLI 0x%08x, " "creating LLME on the fly\n", msgb_tlli(msg)); llme = llme_alloc(msgb_tlli(msg)); lle = &llme->lle[sapi]; } The TX function uses the previously received TLLI to lookup for the LLE. The lle_by_tlli_sapi() performs the search, but preliminary it applies a foreign2local TLLI conversion to ensure to have a local one. Since no valid entry for the searched TLLI is found, a new one is created. And the problem is here. The new entry has the foreign TLLI. Next time the lookup fails again, and a new entry is created. This way, the counter N(U) is always reset, and the mobile do not recognize the message sequence and no attach is possible. My question is about foreign and local TLLIs. I patched the lookup, avoiding the conversion, so that the LLE is found and everything works fine... but... What is the sense of the conversion? Should the TLLI be always stored as a local one? Can this problem be solved with another foreign2local while allocating new entries? Actually, my problem has been solved with that workaround. But I'm curious to know what is the right way. Hope somebody can answer :) Thanks. Cheers, LM

13 years, 2 months

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Re: An Enquiry

by Dieter Spaar

Hello Holger, On Wed, 02 Feb 2011 12:40:13 +0100, "Holger Hans Peter Freyther" <holger(a)freyther.de> wrote: > > OpenBSC does not support data calls. You could start implementing it though, > we should have all the enum values and structs that you need to send the right > messages to the MS. You mean CSD ? Then its most certainly also necessary to implement RLP (Radio Link Protocol) which is the protocol used for non-transparent CSD. At least I did not manage yet to get a reliable CSD connection between two phones by just connecting the data traffic between them (I tried transparent and non-transparent modes). Best regards, Dieter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de

13 years, 2 months

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isdnsync question

by Thomas Ansorg

hi list, have to sync one of my bs-11. got the hfc-s card and soldered the 2 wires. is any driver needed for the hfc-s? or is the clock always on c4io and f0io once the card is plugged in? the hfcmulti driver loads the e1 card, i have a bmask and a dmask parameter in modprobe.conf. should i remove them or just hang on the "type=0x00800"? i have only one try, so i want to clear all possible problems before T. -- Wer Rechtschreibfehler findet, darf sie behalten!

13 years, 2 months

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An Enquiry

by piyush.bhardwaj＠wipro.com

Hi, Can You please help me how to setup a session - packet or CS call session and capture trace messages - protocol traces , Alarms, Performance Management Counters and CDR? It will be very kind of you if you help me in this issue. Regards, Piyush Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com

13 years, 2 months

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How to obtain one of these HSL 2.75G Femtocells?

by ste7an

This Femtocell looks both from a pricing point of view as from a hardware point of view very interesting. Now that the integration in OpenBSC looks very promising it would become a good alternative for the more expensive ip.access picocells. It seems that these HSL femtocell can not be bought without first investing in the developers pack from HSL which cost as much as 7000$. Does anyone know how to obtain one of these cells for a reasonable price? Are they already deployed by operators? Looking at the internal hardware, it may even become a substitute for the USRP's....

13 years, 2 months

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OpenBSC February 2011