April 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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sms bugfix

by Dennis Wehrle

Hello Our goal was to send status sms via the vty interface. But all of our sms were cropped. In contrast sms from one MS to another MS are displayed correctly (despite the fact, that the text at the database contains several '@' at the end / the user_data contains several zero-octets). Therefore i have inspect the code and found several bugs. The main problem is that the "user_data_len" is not correctly used. As per GSM 03.40, 9.2.3.16 TP‑User‑Data‑Length (TP‑UDL): "If the TP‑User‑Data is coded using the GSM 7 bit default alphabet, the TP‑User‑Data‑Length field gives an integer representation of the number of septets within the TP‑User‑Data field to follow." Currently the "user_data_len" contains the number of octets (returned from gsm_7bit_encode(...) at gsm_utils.c (libosmocore)). The big problem here is that this information is not unique, e.g.: 1.) 46 non-extension characters + 1 extension character => (46 * 7 bit + (1 * (2 * 7 bit))) / 8 bit = 42 octets 2.) 47 non-extension characters => (47 * 7 bit) / 8 bit = 41,125 = 42 octets 3.) 48 non-extension characters => (48 * 7 bit) / 8 bit = 42 octects But the MS has to know the correct "user_data_len" to decode the correct number of characters. For this reason i updated the gsm_7bit_encode() function to return the correct number of septets. However sometimes it is needed to know the correct number of octets (e.g. at gsm_04_11.c: gsm340_gen_tpdu(...)) => i added a function to gsm_utils.c named: uint8_t get_octet_len(const uint8_t sept_len) I have also fixed the problem, that the sms are wrongly stored / displayed on the database. But the solution on the function *sms_from_result(...) (at db.c) is not really "beautiful". This is because there exists no "user_data_len" field at the database. To store the right value for "user_data_len" (which is further needed) i have to get the length from the "text" field. Unfortunately this is not enough. If the text contains extension characters like {[]} etc. then the "user_data_len" has to be bigger because these characters needs two septets. Therefore i use a switch statement so search for these characters. A better solution for that is to store the right "user_data_len" to the database (on the encoding / decoding procedure). But i don't know if this is a suitable solution for all of you (because you have to change your database structure etc.). Best Regards Dennis Wehrle

12 years, 9 months

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Licensing of the wiki

by Harald Welte

Hi all, so far we do not have any statement about the licensing of the content on our wiki. This means the default copyright rules apply: All the content is copyrighted, and nobody has any rgiht to reproduce it at all. I would like to propose an official license for the content in the wiki: Create Commons CC-BY-SA. The alternative would be to go for CC-BY-NC-SA, disallowing commercial use of the content. I'm not certain if NC is really what we want. After all, even somebody using OpenBSC in a commercial environment should be able to make copies of the reference documentation we have available - as long as he will releas the result again (which the SA part already covers). If the major contributors to the wiki would agree to a license, I would update the wiki accordingly. Thanks, 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)

12 years, 9 months

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[PATCH 0/3] new VTY commands to enable IPA proxy

by pablo＠gnumonks.org

From: Pablo Neira Ayuso <pablo(a)gnumonks.org> Hi! This patchset adds new VTY commands that allows to route IPA flows. Patch 3/3 includes one feature that changes the current default behaviour of OpenBSC since you explicity have to make a "ipa setup" to enable OML and RSL links. If you like it, I can make a similar patch for HSL femto, so the only initial open socket is the one at port 4242 for telnet configuration. BTW, the original command syntax was proposed by Harald. Successfully tested bootstrapping the nanoBTS. See the patches for more details. Comments welcome! Pablo Neira Ayuso (3): libcommon: add make_sock_stream_connect() libabis: add VTY commands to route IPA flows libabis: add IPA VTY command to setup ip.access nanoBTS OML and RSL links openbsc/include/openbsc/ipaccess.h | 3 + openbsc/include/openbsc/socket.h | 2 + openbsc/include/openbsc/vty.h | 1 + openbsc/src/ipaccess/Makefile.am | 4 +- openbsc/src/libabis/Makefile.am | 2 +- openbsc/src/libabis/e1_input.c | 2 + openbsc/src/libabis/input/ipaccess.c | 962 +++++++++++++++++++++++++++++- openbsc/src/libbsc/bsc_vty.c | 1 + openbsc/src/libcommon/socket.c | 54 ++ openbsc/src/openbsc.cfg.ipa-proxy | 18 + openbsc/src/openbsc.cfg.nanobts | 3 + openbsc/src/openbsc.cfg.nanobts.multitrx | 3 + openbsc/tests/db/Makefile.am | 5 +- 13 files changed, 1043 insertions(+), 17 deletions(-) create mode 100644 openbsc/src/openbsc.cfg.ipa-proxy -- 1.7.2.3

12 years, 11 months

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TODO: openbsc.cfg console logging options

by Harald Welte

Hi Pablo! I've recently received a bug report that somehow the config-file-stored configuration of which log levels/subsystems to enable on stderr don't work. This may be related to the legacy "-d DINP:DNM:... style log level specifications, e.g. we first read the config file and then set some default logging options usign the legacy version. Maybe you can find some time to investigate and fix the issue. Thanks in advance, 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)

12 years, 12 months

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problems with pysim-prog

by Pablo Neira Ayuso

Hi! I'm experiencing problems with pysim-prog. Using the example available in the README file. # ./pySim-prog.py -n 26C3 -c 49 -x 262 -y 42 -z lila -j 0 Insert card now (or CTRL-C to cancel) I get stuck here forever. The same message shows if I remove the supersim card from the reader. Running pysim inside strace shows: write(1, "Insert card now (or CTRL-C to cancel)\n", 38) = 38 ioctl(3, TIOCMBIS, [TIOCM_RTS]) = 0 select(0, NULL, NULL, NULL, {0, 100000}) = 0 (Timeout) ioctl(3, TCFLSH, 0) = 0 ioctl(3, TIOCMBIC, [TIOCM_RTS]) = 0 select(4, [3], [], [], {1, 0}) = 0 (Timeout) select(0, NULL, NULL, NULL, {0, 500000}) = 0 (Timeout) ioctl(3, TIOCMBIS, [TIOCM_RTS]) = 0 select(0, NULL, NULL, NULL, {0, 100000}) = 0 (Timeout) ioctl(3, TCFLSH, 0) = 0 ioctl(3, TIOCMBIC, [TIOCM_RTS]) = 0 ... [and so on] The pl2303 module is loaded correctly, and I have used it before to access some embedded devices via serial line: pl2303 2-2:1.0: pl2303 converter detected usb 2-2: pl2303 converter now attached to ttyUSB0 usb 2-2: USB disconnect, device number 11 pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0 Any clue on what's wrong? Thanks!

12 years, 12 months

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Your http://openbsc.mciroembedded.com/ site

by Harald Welte

Hi "Mr. Unknown", it has come to my attention that you are running a copy of our OpenBSC website (http://openbsc.osmocom.org/) at http://openbsc.microembedded.com/ We appreciate your enthusiasm for OpenBSC and like to thank you for your work on the Chinese translation. However, it would have been good to coordinate about this with us. Making a copy of the website as a sub-domain to your company "MicroEmbedded" may seem to some people as if you were representing the OpenBSC project (which you are not), or that OpenBSC is somehow a work of your MicroEmbedded company. After some checking, it seems that the final line on each page "注： BscHack （英文原文出处，以上翻译整理仅供 OpenBSC 爱好者参考! email: support(a)microembedded.com ）" provides a link to the orignal page at bs11-abis.gnumonks.org. Once again in this link you provide your e-mail address, followed by the company footer of your web-page. The contents of the OpenBSC website has copyright, and we do not think it is appropriate for you to associate your company in this way with OpenBSC. You are not a member of the project, you have not contributed to the OpenBSC software, and you have not contacted us about obtainign permission to make such a translated copy. Furthermore, there are several problems with your website: 1) it is out of date, as you have used a very old version of the OpenBSC website to translate. As a result, quite some of your links back to the original OpenBSC site are broken. 2) You have introduced capitalization changes like "$ Sqlite" which will not work, as the command is "$ sqlite" If your intentions in running a translated OpenBSC site are honest, I would like to invite you to do so in working together with us. We can provide you with the respective space on the official homepage, and you can contribute your translated content there. In return, we may put a "thank you" link to microembedded.com in the Thanks section at http://openbsc.osmocom.org/trac/wiki#Thanks We hope this is acceptable to you. In any case, we hope you can understand that we will not tolerate you putting your company name next to a copy of the OpenBSC wiki. 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)

12 years, 12 months

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[PATCH] include: fix missing extern in osmo_panic* declarations

by pablo＠gnumonks.org

From: Pablo Neira Ayuso <pablo(a)gnumonks.orgt> This patch adds the missing extern to osmo_panic* declarations. --- include/osmocom/core/panic.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/osmocom/core/panic.h b/include/osmocom/core/panic.h index c5a8377..c28a844 100644 --- a/include/osmocom/core/panic.h +++ b/include/osmocom/core/panic.h @@ -5,7 +5,7 @@ typedef void (*osmo_panic_handler_t)(const char *fmt, va_list args); -void osmo_panic(const char *fmt, ...); -void osmo_set_panic_handler(osmo_panic_handler_t h); +extern void osmo_panic(const char *fmt, ...); +extern void osmo_set_panic_handler(osmo_panic_handler_t h); #endif -- 1.7.2.3

13 years

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Strange nanoBTS Behavior

by Max Marbler

Dear List, I'm a long time listener, first time caller - but have been enjoying experimenting with OpenBSC for a little while now. I've come across a new (to me) nanoBTS with some strange behavior: it seems to come up normally and pull an IP over DHCP, and interacts as expected with the ipaccess-find and ipaccess-config tools, but *never* attempts to establish an OML link. After provisioning the correct settings with ipaccess-config, the unit reboots and slow-flashes the orange light (no OML) and there is *no* network traffic initiated by the nanoBTS past the DHCP exchange; however, I can ping the unit using ipaccess-find and ping. After running a reset with the dongle and a repeat of the above, I get the same results. Any ideas? Thank You, -MM

13 years

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intra BSC Handover

by Christopher HENARD

Hello all, I want a confirmation. I 've seen in openBSC features that openBSC handles handover between cells inside one BSC. So I think it's possible to connect several nanoBTS to openBSC and move from one cell to another without losing the outgoing call. Am I right ? Thank you. Chris

13 years

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SIM programmer recommendations?

by David A. Burgess

All - I am looking for a full-card SIM programmer to use with pySim and GR-Card SIMs. By full-card I mean it accepts a full-size smart-card with the SIM still attached. I have tried the Bludrive II unit provided by GR-Card under both Mac OS X and Ubuntu with no luck. (And yes, I tried downloading and installing the drivers.) Can anyone recommend something that is known to work with pySim under Linux or OS X? Or is there some other driver that I need to install or configure? -- David

13 years

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nanoBTS

by Ammar Naamat Hameed

Hi All, I wanna buy a nanoBTS, can you help with that please. from where can I buy it and how much does it cost ? Thanks, Ammar

13 years

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bsc_hack

by Christopher HENARD

Hi everyone, I have successfully compiled and installed openBSC-0.9.13, but there isn't the program bsc_hack. However, in src/osmo-nitb, there's bsc_hack source code and object (.c and .o) and an executable osmo-nitb. Has bsc_hack been replaced by osmo-nitb ? Thanks. Christopher Hénard

13 years

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Blocks OpenBSC the calls to 112?

by Luca Bertoncello

Hi, List! Just a question, does OpenBSC block the connection to special number such 112? I connected OpenBSC to Asterisk and in Asterisk I have an extension 112 (now just as test), an 110 and an 115. If I call the 110 or 115 I can see that Asterisk will be asked to connect the phone and the VoIP-phone with the number will be called. If I call the 112 the connection terminates and I can't see OpenBSC sending any signal to Asterisk. Could you confirm me, that OpenBSC blocks this number? And, maybe, suggest me how to delete this block... :) Thanks a lot! Luca Bertoncello -- _______________________________________________________________________ Luca Bertoncello Entwicklung Mail: bertoncello(a)netzing.de NETZING Solutions AG Tel.: 0351/41381 - 23 Fröbelstr. 57, 01159 Dresden Fax: 0351/41381 - 12 _______________________________________________________________________ Impressum: NETZING Solutions AG - Fröbelstraße 57 - 01159 Dresden Sitz der Gesellschaft Amtsgericht Dresden HRB 18926 Vorstand Dieter Schneider - Aufsichtsratsvorsitzender Volker Kanitz USt.Id DE211326547 Mail: netzing.ag(a)netzing.de

13 years

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Re: Re: Blocks OpenBSC the calls to 112?

by 246tnt＠gmail.com

> Does it mean, that it is not possible for me to have a 112 number b > called in my network? No, it's not possible. You should avoid anything starting by '1' and anything starting by '9' in your dialplan ... Cheers, Sylvain

13 years

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Using openBSC as MSC

by Ammar Naamat Hameed

Dear All, Is it possible to use openbsc as MSC, VLR and HLR without using nanBTS as i'm trying to develop an SMSC.In other words, to make it work as MSC,HLR emulator with dummy subscribers? Regards, Ammar

13 years

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Re: nanoBTS multi-TRX setup

by Dieter Spaar

Hello Konrad, On Wed, 13 Apr 2011 16:16:01 +0200, "Konrad Meier" <meierk(a)informatik.uni-freiburg.de> wrote: > > Any idea what the NWL connector is for? Its the Rx Antenna for the "Network Listen" feature of the nanoBTS, its used for receiving the downlink of other basestations. Best regards, Dieter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de

13 years

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Re: nanoBTS multi-TRX setup

by Dieter Spaar

Hello Konrad, On Wed, 13 Apr 2011 13:10:54 +0200, "Konrad Meier" <meierk(a)informatik.uni-freiburg.de> wrote: > > 1. What is the purpose of the "RF cable"? > Is the TX port of the master BTS looped through the second BTS? Or hase > every nanoBTS his own TRX/RX? The RF cable is used to route TX from the rear unit to the AUX connector of the front unit. The SMB socket at the back and AUX are directly connected, there is nothing special about them. So in a stacked two-units assembly the front unit also has the TRX antenna of the rear unit at the AUX connector. Most certainly the idea is to improve transmission of the rear unit or to better separate the two TRX antennas. So TX is looped through one unit but the two TX signals are not combined. Best regards, Dieter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de

13 years

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How can I calibrate the clock of nanobts?

by Seungju Kim

How can I calibrate the clock of the nanobts? I looked through the mailing list and all I have found is that it is not implemented.... Sent from my iPhone

13 years

2
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nanoBTS multi-TRX setup

by Konrad Meier

Hi all, I was just reading the wiki page about the nanoBTS multi-TRX setup. Two things are not clear to me. 1. What is the purpose of the "RF cable"? Is the TX port of the master BTS looped through the second BTS? Or hase every nanoBTS his own TRX/RX? I am asking because I would like to use a nanoBTS-Booster with the multi-TRX setup and therefore require a combined RF signal. 2. The example example "openbsc.cfg" configures the trx 1 as follows: timeslot 0 phys_chan_config CCCH+SDCCH4 timeslot 1 phys_chan_config SDCCH8 Is this really needed? My first idea was to configure the second trx to TCH/F only. Best regards Konrad Meier

13 years

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Any plan to fork OpenBTS and/or merge with Osmocom code?

by Fabio Pietrosanti (naif)

Hi all, this email don't want to be a provocative email but just an opinion related to the creation of value for GSM TLC stack into the opensource environment. As we know currently there are several different projects growing into the GSM (then tetra and in future 3G?) opensource ecosystem. The first "pratical" base has been OpenBTS as a simplified GSM um interface for VoIP. The second major implementations was around the osmocom project that build-up a complete and well designed GSM stack with all the modular interfaces and protocols for communications between BTS and BSC, with MSC, HLR, GGSN, SGSN and major GSM network components. Additionally, if i understood correctly osmocom is much more advanced with broad scope and better design than OpenBTS. It seems to me that OpenBTS it's almost stalled due to the "commercial fork" of the OpenSource project and only fairwaves is contributing to the opensource branch. I personally really dislike the "Commercial fork" approach where the community is used only in the early phase of the project to improve it and from a certain point the community doesn't get almost any added value. I like much more the dual-licensed approach like AGPL/Commercial (like http://pjsip.org) where all the value of the code is publicly released. However, my post was related to a question: - How complex would be, leveraging existing public OpenBTS code, to integrate into the Osmocom project? I mean, having a sort of lightweight BTS component speaking A-Bis over IP to OpenBSC like the cheap nano ip.access BTS does. For what i read now Osmocom have 2 software BTS (Osmo-BTS and Soft-BTS), communicating with the A-BIS over IP interface to OpenBSC: http://lists.gnumonks.org/pipermail/openbsc/2011-March/002529.html http://lists.gnumonks.org/pipermail/openbsc/2010-April/001508.html I've read that only a lot of time ago (2009) there was a discussion about OpenBTS to OpenBSC integration: http://lists.gnumonks.org/pipermail/openbsc/2009-October/000955.html At the current stage of development (2011), with Osmocom finally getting a Software-BTS part communicating to the Software-BSC side, how really complex it would be to integrate the GSM-um related part of OpenBTS into the project? With that approach the 'GSM-um' interface would be a very simplified module of the overall system and osmocom would completely replace OpenBTS all-in-one project. Am i right? -naif p.s. Sorry for the cross-posting, i just wanted to explain the idea and get the communities feedbacks to understand 'at which point' we are in order to think 'what would be required to be done' to achieve that goal.

13 years

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[PATCH 0/7] openbsc: cleanups for ipaccess tools (3/*)

by pablo＠gnumonks.org

From: Pablo Neira Ayuso <pablo(a)gnumonks.org> This patchset is the third in the series to cleanup code in ipaccess tools and drivers. They have been tested by bootstraping the nanoBTS successfully in a small setup with two laptops, one acting as proxy and another with osmo-nitb. They are available in the pablo/cleanups branch in openbsc git tree. BTW: I'm going to stop a bit with cleanups to add a VTY interface for ipaccess-proxy, as Harald suggested. Please, merge it! Thanks. Pablo Neira Ayuso (7): libabis: ipaccess: more robust ipaccess_idtag_name() src: more robust ipaccess_idtag_parse() libabis: ipaccess: use log instead of debug under errors in ipaccess_send() ipaccess-find: get rid of ipac_idtag_name() ipaccess-proxy: more robust option parsing and checking ipaccess-proxy: remove leftover option `--udp' ipaccess-proxy: get rid of make_gprs_sock() openbsc/include/openbsc/ipaccess.h | 2 +- openbsc/src/ipaccess/Makefile.am | 6 +++ openbsc/src/ipaccess/ipaccess-find.c | 22 +------------ openbsc/src/ipaccess/ipaccess-proxy.c | 56 +++++++++++++-------------------- openbsc/src/libabis/input/ipaccess.c | 18 ++++++---- openbsc/src/osmo-bsc_nat/bsc_nat.c | 8 ++++- openbsc/src/osmo-bsc_nat/bsc_ussd.c | 8 ++++- 7 files changed, 55 insertions(+), 65 deletions(-) -- 1.7.2.3

13 years

4
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wireshark: update of RSL dissector

by pablo＠gnumonks.org

From: Pablo Neira Ayuso <pablo(a)gnumonks.org> This patch includes some updates for the wireshark RSL dissector. See patch for details. This changes are available in the pablo/wireshark-rsl branch of openBSC. Please, merge it. Pablo Neira Ayuso (1): wireshark: update extension of RSL dissector with ip.access nanoBTS support wireshark/0004-rsl-ipaccess.patch | 228 ++++++++++++++++++++++--------------- 1 files changed, 134 insertions(+), 94 deletions(-) -- 1.7.2.3

13 years

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OpenBSC unsubscribe notification

by mailman-bounces＠lists.osmocom.org

so29(a)onlinehome.de has been removed from OpenBSC.

13 years

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GSM equipment auction

by Guy Taylor

Hi all Just to let everyone know about an auction that people may like to look into. Online Auction Closes 3pm* on Tuesday 19th April 2011 Extensive Electronic Test and Measurment Equipment to include Agilent /HP Telecom test, Spectrum Analysers, Frequency generators, Optical Test, Oscilloscopes, Programmable Power Supplies, Inspection Scopes, 19in Test rack syetems Equipment Transport, IT equipment and more. http://www.sweeney-kincaid.com/Sales/SaleDescription.aspx?SaleId=1640 guy

13 years

2
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ipaccess-config perforning tests is broken

by Holger Hans Peter Freyther

Hi Harald, I bisected this and I end at the commit that moves bsc_init.c code around and moves things to signals. Out of your head would you know if ipaccess-config needs to call some other init function or do something special? If not I will dig a bit more and come back with more details. holger

13 years

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handover errormessage

by Thomas Ansorg

hello, one abis_rsl-massage is: CONNECTION FAIL: RELEASE CAUSE=0x18(Siemens: T_MSRFPCI Expired) 01 and handover always ends in a segfault error what does that mean and how can i fix it? T.

13 years

2
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[PATCH 0/6] openbsc: cleanups for ipaccess tools (2/*)

by pablo＠gnumonks.org

From: Pablo Neira Ayuso <pablo(a)gnumonks.org> This patchset is the second in the series to cleanup redundant code in ipaccess tools. They have been tested by bootstraping the nanoBTS successfully in a small setup with two laptops, one acting as proxy and another with osmo-nitb. They are available in the pablo/cleanups branch in openbsc git tree. Please, merge it! Thanks. Pablo Neira Ayuso (6): ipaccess-proxy: get rid of make_listen_sock() and use make_sock() instead libabis: ipaccess: conclude new ipaccess_send_*() functions and use them libabis: ipaccess: export ipaccess_idtag_name() ipaccess-proxy: get rid of ipac_idtag_parse() libabis: ipaccess: export ipaccess_parse_unitid ipaccess-proxy: remove hardcoded IP for options `-l' and `-b' openbsc/include/openbsc/ipaccess.h | 3 + openbsc/src/ipaccess/Makefile.am | 7 +- openbsc/src/ipaccess/ipaccess-proxy.c | 188 ++++++--------------------------- openbsc/src/libabis/input/ipaccess.c | 75 +++++++++---- 4 files changed, 94 insertions(+), 179 deletions(-) -- 1.7.2.3

13 years

4
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[PATCH] ipaccess-proxy: remove hardcoded IP for options `-l' and `-b'

by Pablo Neira Ayuso

This patch removes the hardcoded IP addresses for options `-l' and `-b'. --- openbsc/src/ipaccess/ipaccess-proxy.c | 23 +++++++++++++++++++---- 1 files changed, 19 insertions(+), 4 deletions(-) diff --git a/openbsc/src/ipaccess/ipaccess-proxy.c b/openbsc/src/ipaccess/ipaccess-proxy.c index b6dcad1..55658cf 100644 --- a/openbsc/src/ipaccess/ipaccess-proxy.c +++ b/openbsc/src/ipaccess/ipaccess-proxy.c @@ -1120,11 +1120,19 @@ static void print_help() static void print_usage() { - printf("Usage: ipaccess-proxy\n"); + printf("Usage: ipaccess-proxy [options]\n"); } +enum { + IPA_PROXY_OPT_LISTEN_NONE = 0, + IPA_PROXY_OPT_LISTEN_IP = (1 << 0), + IPA_PROXY_OPT_BSC_IP = (1 << 1), +}; + static void handle_options(int argc, char** argv) { + int options_mask = 0; + while (1) { int option_index = 0, c; static struct option long_options[] = { @@ -1150,9 +1158,11 @@ static void handle_options(int argc, char** argv) exit(0); case 'l': listen_ipaddr = optarg; + options_mask |= IPA_PROXY_OPT_LISTEN_IP; break; case 'b': bsc_ipaddr = optarg; + options_mask |= IPA_PROXY_OPT_BSC_IP; break; case 'g': gprs_ns_ipaddr = optarg; @@ -1171,15 +1181,20 @@ static void handle_options(int argc, char** argv) break; } } + if ((options_mask & (IPA_PROXY_OPT_LISTEN_IP | IPA_PROXY_OPT_BSC_IP)) + != (IPA_PROXY_OPT_LISTEN_IP | IPA_PROXY_OPT_BSC_IP)) { + printf("ERROR: You have to specify `--listen' and `--bsc' " + "options at least.\n"); + print_usage(); + print_help(); + exit(EXIT_FAILURE); + } } int main(int argc, char **argv) { int rc; - listen_ipaddr = "192.168.100.11"; - bsc_ipaddr = "192.168.100.239"; - tall_bsc_ctx = talloc_named_const(NULL, 1, "ipaccess-proxy"); log_init(&log_info); -- 1.7.2.3 --------------020905060808020403000801--

13 years

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question msg_3 in bsc_init.c

by Thomas Ansorg

hello to enable handover function, do i have to change in data field msg_3 the corresponding values form 0x00h to 0x01h? does 0x01h enable where 0x00h disables? T.

13 years

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T3103 value

by kobayashi_maru＠onlinehome.de

hello what's a suitable value for the 3103? T.

13 years

1
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[PATCH 0/3] openbsc: cleanups for ipaccess tools (1/*)

by pablo＠gnumonks.org

From: Pablo Neira Ayuso <pablo(a)gnumonks.org> This patchset is the first in the series to cleanup redundant code in ipaccess tools. They are available in the pablo/cleanups branch in openbsc git tree. Please, merge it! Thanks. Pablo Neira Ayuso (3): ipaccess-config: exit if no network interface is specified libcommon: socket: extend make_sock() prototype ipaccess-proxy: get rid of internal make_sock() implementation openbsc/include/openbsc/socket.h | 5 ++- openbsc/src/ipaccess/ipaccess-find.c | 1 + openbsc/src/ipaccess/ipaccess-proxy.c | 42 ++------------------------------ openbsc/src/libabis/input/hsl.c | 4 +- openbsc/src/libabis/input/ipaccess.c | 8 +++--- openbsc/src/libcommon/socket.c | 10 ++++--- openbsc/src/libgb/gprs_ns.c | 2 +- openbsc/src/libgb/gprs_ns_frgre.c | 2 +- openbsc/src/osmo-bsc_nat/bsc_ussd.c | 2 +- 9 files changed, 22 insertions(+), 54 deletions(-) -- 1.7.2.3

13 years

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alternative bts

by Hans Witvliet

Hi all, A thread on the asterisk mailing list re-triggerd my memory. Last november or so i asked if it might be possible to use a gsm/umts-dongle as a bts. afaicr the general consensus was that it was not possible because the proximity of TX and RX hardware. I have been discussing it with my colleges today and wonder where we were making the obvious thinking-mistake... 1) i know, that certainly at higher powers, the receiver becomes deaf in the vincinity of a (high powered) transmitter, due to cirtuit overload, but in our case we only needs a single miliwatt or even less.... 2) scanning for multiple devices/frequencies is not needed. [the idea is to connect to a single hand-held-device, that is only one meter away, and feed voice through an existing IP-connection] 3) if a dongle is not usable for above reasons as a BTS, why is that same dongle (more-or-less) capable as working as a handheld? Same problems should occur as such, not? http://wiki.e1550.mobi/doku.php If they can tap in the device for audio/sms-client, it should also be possible to do it the other way round, as a single-thread bts.... still puzzled, Hans

13 years

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Help understanding used power

by Luca Bertoncello

Hi, list! I'm trying to understand how the options "nominal power" and "max_power_red" work... Last Friday I tried to place 4 BTS in a rectangle of about 100x20 meter and then I examined the measurement reports of a mobile. They are very very bad, and oft it cannot see a cell. Then I tried to change the value of "nominal power" (max_power_red did not changed) and retry to check the measurement reports. No changes... :( Now I'm here in my office with a spectrum analyzer and try to change these values, but what I see in the spectrum analyzer is always the same... I restart OpenBSC after any change, of course! Could you please help me to understand what these values mean and how can I boost the signal? Thanks a lot in advance for your help! -- _______________________________________________________________________ Luca Bertoncello Entwicklung Mail: bertoncello(a)netzing.de NETZING Solutions AG Tel.: 0351/41381 - 23 Fröbelstr. 57, 01159 Dresden Fax: 0351/41381 - 12 _______________________________________________________________________ Impressum: NETZING Solutions AG - Fröbelstraße 57 - 01159 Dresden Sitz der Gesellschaft Amtsgericht Dresden HRB 18926 Vorstand Dieter Schneider - Aufsichtsratsvorsitzender Volker Kanitz USt.Id DE211326547 Mail: netzing.ag(a)netzing.de

13 years

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instruction manual for bs11

by Thomas Ansorg

hello is any instruction manual available? I need one. you may also send me a rs-link, if you think e-mail is too insecure T.

13 years

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rectangular signals on rx-ports

by Thomas Ansorg

hello what are the rectangular signals on the bs11 rx-ports? and what if the signal has ripples on unconnected bs11? T.

13 years

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OpenBSC April 2011