OpenBSC March 2010

openbsc@lists.osmocom.org

23 participants
36 discussions

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15 Mar '10

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GSM overview
by Andreas.Eversberg 14 Mar '10

14 Mar '10

hi, i just found some valuable information this weekend at www.informatik.hu-berlin.de/~goeller/isdn/ an introduction into gsm tracing in german http://www.informatik.hu-berlin.de/~goeller/isdn/DieGSMDmKanaele.pdf and the same in english http://www.informatik.hu-berlin.de/~goeller/isdn/GSMDmChannels.pdf it gives a rough history of GSM development, GSM network structure, framing, encryption, coding, and services - in just 100 pages. for me it is usefull to verify my parsing of SYSTEM INFORMATION messages. it describes traces of the most importaint messages. andreas

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OpenBSC unsubscribe notification
by mailman-bounces＠lists.gnumonks.org 14 Mar '10

14 Mar '10

2b00042(a)gmx.com has been removed from OpenBSC.

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WG: again compilation of lcr
by Andreas.Eversberg 12 Mar '10

12 Mar '10

>. /lcr: symbol lookup error: ./lcr: undefined symbol: init_af_isdn pull lcr again. the mISDNuser header paths have changed. i changed more stuff. also try to remove the /usr/include/mISDNuser directory. it is obsolete. now compat_af_isdn.h can be removed from openbsc also. todo so, replace the include of this file by: #include <mISDN/mISDNcompat.h> int __af_isdn = MISDN_AF_ISDN; maybe it is better to use "static int", so it will not conflict when linking to lcr... we will see. the function call init_af_isdn(); can be removed.

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AW: again compilation of lcr
by Andreas.Eversberg 11 Mar '10

11 Mar '10

> am still getting this error: try the patch i added to my last mail. it is not yet committed to GIT. go into your osmocore GIT directiory, say "patch -p1" and paste the following. (end with CTRL+d) ---- diff --git a/include/osmocore/gsm48.h b/include/osmocore/gsm48.h index 6356379..787cdd0 100644 --- a/include/osmocore/gsm48.h +++ b/include/osmocore/gsm48.h @@ -6,7 +6,7 @@ extern const struct tlv_definition gsm48_att_tlvdef; extern const char *cc_state_names[32]; -const char *gsm48_cc_msg_names[0x40]; +extern const char *gsm48_cc_msg_names[0x40]; const char *rr_cause_name(uint8_t cause); void gsm48_generate_lai(struct gsm48_loc_area_id *lai48, uint16_t mcc, ----

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again compilation of lcr
by Andreas.Eversberg 11 Mar '10

11 Mar '10

hi, now after changing code of lcr, it compiles with libosmocom and openbsc. all packets are the latest (mISDN, mISDNuser, libosmocom, openbsc, lcr) i have started it without crashing, but i could not test it. please change to "develop" branch of LCR. be sure to add links to openbsc and libosmocore to the LCR source directories: libosmocore -> ../libosmocore/ openbsc -> ../openbsc/openbsc/ also i found some little problems while compiling osmocore and openbsc: the 'extern' is missing: diff --git a/include/osmocore/gsm48.h b/include/osmocore/gsm48.h index 6356379..787cdd0 100644 --- a/include/osmocore/gsm48.h +++ b/include/osmocore/gsm48.h @@ -6,7 +6,7 @@ extern const struct tlv_definition gsm48_att_tlvdef; extern const char *cc_state_names[32]; -const char *gsm48_cc_msg_names[0x40]; +extern const char *gsm48_cc_msg_names[0x40]; const char *rr_cause_name(uint8_t cause); void gsm48_generate_lai(struct gsm48_loc_area_id *lai48, uint16_t mcc, an here is a warning i did not analyse yet: /usr/lib/gcc/i686-pc-linux-gnu/4.3.4/../../../../i686-pc-linux-gnu/bin/l d: Warning: size of symbol `rsl_rlm_cause_strs' changed from 8 in ./openbsc/src/libbsc.a(abis_rsl.o) to 120 in /usr/local/lib/libosmocore.so regards, andreas

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AW: missing mncc.h?
by Andreas.Eversberg 11 Mar '10

11 Mar '10

hi holger, i still can't see it. regards, andreas >git pull in libosmocore please. We are still moving stuff out of OpenBSC into >libosmocore and if you update the one you should update the other. My >libosmocore contains a mncc.h file. root@nuedel libosmocore # git pull Already up-to-date. root@nuedel libosmocore # ls include/osmocore/ -R include/osmocore/: Makefile bitvec.h gsm_utils.h msgb.h rxlev_stat.h statistics.h tlv.h Makefile.am comp128.h gsmtap.h protocol select.h talloc.h utils.h Makefile.in gsm48.h linuxlist.h rsl.h signal.h timer.h write_queue.h include/osmocore/protocol: Makefile Makefile.am Makefile.in gsm_04_08.h gsm_04_11.h gsm_04_80.h gsm_08_58.h gsm_12_21.h

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missing mncc.h?
by Andreas.Eversberg 11 Mar '10

11 Mar '10

hi, i got some problems with missing mncc.h at osmocore include directory. i am in the master branch. any idea? thanx, andreas make[2]: Entering directory `/root/gsm/openbsc/openbsc/src' gcc -DHAVE_CONFIG_H -I. -I.. -I../include -Wall -I/usr/local/include/ -g -O2 -MT abis_rsl.o -MD -MP -MF .deps/abis_rsl.Tpo -c -o abis_rsl.o abis_rsl.c In file included from ../include/openbsc/gsm_data.h:46, from abis_rsl.c:31: ../include/openbsc/mncc.h:29:27: error: osmocore/mncc.h: No such file or directory In file included from ../include/openbsc/gsm_data.h:46, from abis_rsl.c:31: ../include/openbsc/mncc.h:122: error: field 'bearer_cap' has incomplete type ../include/openbsc/mncc.h:123: error: field 'called' has incomplete type ../include/openbsc/mncc.h:124: error: field 'calling' has incomplete type ../include/openbsc/mncc.h:125: error: field 'redirecting' has incomplete type ../include/openbsc/mncc.h:126: error: field 'connected' has incomplete type ../include/openbsc/mncc.h:127: error: field 'cause' has incomplete type ../include/openbsc/mncc.h:128: error: field 'progress' has incomplete type ../include/openbsc/mncc.h:129: error: field 'useruser' has incomplete type ../include/openbsc/mncc.h:130: error: field 'facility' has incomplete type ../include/openbsc/mncc.h:131: error: field 'cccap' has incomplete type ../include/openbsc/mncc.h:132: error: field 'ssversion' has incomplete type make[2]: *** [abis_rsl.o] Error 1 make[2]: Leaving directory `/root/gsm/openbsc/openbsc/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/root/gsm/openbsc/openbsc' make: *** [all] Error 2

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Error compiling openbsc
by Nordin Bouchtaoui 09 Mar '10

09 Mar '10

Hello guys, I installed a newly fresh Debian Lenny, downloaded openbsc project using git. But when running ./configure after autoreconf -i (which went well), I get the following message: ./configure: line 3551: syntax error near unexpected token `LIBOSMOCORE,' ./configure: line 3551: `PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore)' I know the osmocomBB project has a bit of the focus now and that some sources in openbsc are also used in osmocomBB, hence the libosmocore? But can someone helping me out to get the openbsc build? Thank you.

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wireshark help
by ken 05 Mar '10

05 Mar '10

Hi, I have the OpenBSC up and running with a nanobts at 900MHz. I would require some help with the following issues. 1) I'm able to view most of the air interface messages on wireshark but not able to view the gsm system information blocks. Is there any patches I should add on wireshark and is it possible to provide instructions on how to apply the patches ? 2) I'm able to see the rrlp request made to the mobile on wireshark. However I'm not see any rrlp response from the mobile on wireshark. I'm sure my mobile suppot ms-based rrlp request. Again, what are the patches to wireshark I should apply? Appreciate if details on how to apply the patches are provided. 3) I have copied out the gprs branch and am able to run the gprs OpenBSC codes without any problems. Just that at this stage, my mobile (i-phone 3Gs) does not seem to be able to do a gprs attach and have the OpenBSC allocate it a P-TMSI. Is there any thing I should do to get my i-phone 3Gs to do a gprs attach on the OpenBSC? (For my i-phone 3Gs, the settings is gsm mode only) 4) Also in the OpenBSC folder, there's this rrlp-ephemeris folder, if possible, would like to have further details on the purpose of the rrlp-ephemeris folder. Appreciate any kind advise and help. Thanks so much Ken

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OpenBSC March 2010