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path: root/openbsc/src/libmsc/gsm_04_08.c
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2012-12-29gsm_04_08: Display debug message correctly on DETACH INDICATIONdaniel/channel-ho-wipDaniel Willmann1-3/+5
Log messages would get mangled before if we receive detach by TMSI or IMSI.
2012-12-26handover: Fix the handover signalling for IP based BTSesHolger Hans Peter Freyther1-13/+20
This was reported by Kevin when he was testing handover. The problem is the order of the signal handlers for S_ABISIP_CRCX_ACK. Right now the handover signal handler is called before the one inside the libmsc gsm_04_08.c. This means S_HANDOVER_ACK is signalled _before_ there is a rtp socket created for the channel. The result is that the MDCX will never be sent and the called will not be properly switched _after_ the handover detection. I do not want to play with the order of signal handlers, remove the CRCX ack handling from the handover_logic.c and force the NITB (and later the BSC) to check if the lchan is involved with a handover and do the switching in there. This means right now we do what two signal handlers did in one. Reproduced and tested with the FakeBTS Handover test. Log message: <0004> abis_rsl.c:1954 (bts=1,trx=0,ts=3,ss=0) IPAC_CRCX_ACK ... <000c> gsm_04_08.c:1400 no RTP socket for new_lchan <001a> rtp_proxy.c:533 rtp_socket_create(): success <001a> rtp_proxy.c:615 rtp_socket_bind(rs=0x48703c8, IP=0.0.0.0): ...
2012-12-22libmsc: Avoid a crash on lchan release during call controlHolger Hans Peter Freyther1-5/+16
If subscriber A is calling B and has sent a CC Setup message we will allocate the MO and MT transaction and link them together. When the BTS or the lchan is failing the BSC API will send a clear request, as part of the clear request all pending transactions will be released. As part of taking down the transaction, the remote leg will be informed and will send a MNCC_REL_REQ. This results in a call to trans_free. The llist_for_each_entry_safe does not handle removing other elements from the list and we would segfault. One way to fix this is to move the transaction list into the subscriber connection. This might require to create the subscriber connection for MT handling earlier. Otherwise one could have one transaction list inside the subscriber connection and a global list for MT- transactions.
2012-12-16nitb: Do not crash on IMSI Detach messages from a phoneHolger Hans Peter Freyther1-1/+0
This has been reported and analyzed by Tobias Engel. The IMSI Detach is dispatched as part of the complete layer3 message. I had patched the code to release the anchor and call msc_release_connection to release the connection as fast as possible (otherwise the anchor would trigger in a couple of seconds). With commit 70ae5d3000edd12aee38497a6f541595a8c7dee8 I made this more generic to release the connection immediately if there are no operations, no transaction and no silent call. This leads to the subscriber connection being released twice and eventually causing a segfault. Remove the msc_release_connection invocation from the IMSI Detach code as the connection will be taken down by the BSC API. This has been tested using the FakeBTS and an IMSI Detach message. The channel is released immediately and the nitb does not crash.
2012-09-11misc: Address compiler warning on unused variablesHolger Hans Peter Freyther1-4/+3
abis_nm.c: In function ‘abis_nm_get_attr’: abis_nm.c:1380:11: warning: unused variable ‘cur’ [-Wunused-variable] abis_nm.c: In function ‘ipac_parse_bcch_info’: abis_nm.c:2588:11: warning: variable ‘len’ set but not used [-Wunused-but-set-variable] bts_nokia_site.c:1310:6: warning: variable ‘constructed’ set but not used [-Wunused-but-set-variable] bts_nokia_site.c: At top level: bts_nokia_site.c:1364:12: warning: ‘dump_elements’ defined but not used [-Wunused-function] gsm_04_08.c: In function ‘mm_rx_loc_upd_req’: gsm_04_08.c:521:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] osmo_msc.c: In function ‘msc_ciph_m_compl’: osmo_msc.c:122:7: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] bts_hsl_femtocell.c: In function ‘hslfemto_bootstrap_om’: bts_hsl_femtocell.c:101:11: warning: variable ‘cur’ set but not used [-Wunused-but-set-variable] bts_hsl_femtocell.c: In function ‘hsl_drop_oml’: bts_hsl_femtocell.c:232:21: warning: variable ‘line’ set but not used [-Wunused-but-set-variable] handover_logic.c: In function ‘ho_chan_activ_ack’: handover_logic.c:197:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]
2012-07-16MSC 04.08: RRLP messages are DRR, not DNM !Harald Welte1-1/+1
2012-07-12move BTS-specific timezone override into sub-structureHarald Welte1-7/+7
Group all three structure members involved in bts-specific timezone handling into a sub-structure.
2012-07-10msc: Attempt to release the lchan immediately on IMSI DetachHolger Hans Peter Freyther1-6/+6
The Nokia E71 sends a "IMSI Detach" this msc code does not immediately send the "RR Channel Release", the E71 is impatient and sends a DISC, the "RELEASE INDICATION" is handled by starting the channel release procedure. OpenBSC sends a "RR Channel Release" which will never be answered, during the early release there is no timer and the lchan will be in "RELEASE REQUESTED" forever. This commit removes the anchor operation and checks if the channel can be released immediately. Regarding the channel release handling there is already a branch that needs to be tested.
2012-07-02BSC: introduce new "sysmobts" BTS modelHarald Welte1-0/+3
so far, osmo-bts/sysmobts used to be entered as "sysmobts" type in the configuration file. However, there are some differences in the protocol/behaviour and we should reflect that by a new BTS plugin (with lots of code reuse from the nanobts driver).
2012-04-08introduce HAVE_TM_GMTOFF_IN_TMHarald Welte1-0/+7
Not all architectures have the tm.tm_gmtoff member. This fixes cygwin builds.
2012-01-23Move the bulk of RR processing from MSC into BSCHarald Welte1-107/+3
RR Messages like STATUS, GPRS SUSPEND, HANDOVER COMPLETE/FAIL, ... should be processed on the BSC side of things, not on the MSC side. This is among other things required in preparation of intra-BSC hand-over support in osmo-bsc.
2012-01-23Move processing of CLASSMARK CHANGE behind bsc_apiHarald Welte1-50/+0
This prevents osmo-bsc from sending RR messages to the MSC and rather process them inside the BSC and turn them into BSSAP CM UPDATE.
2011-12-02Add NITZ (timezone) support as part of MM INFOGus Bourg1-22/+52
The UTC offset from the operating system will be used by default to calculate the NITZ in MM INFO. However, a "timezone" vty command is added at the BTS level, allowing BTS-specific overrides, e.g. in case BTSs are distributed accross multiple timezones.
2011-11-07gsm0408: Print a message when the LU is timing out.Holger Hans Peter Freyther1-0/+1
2011-09-03Add VTY command to specify default speech codecHarald Welte1-0/+4
In order to have the MNCC application reliably decide on the codec type, it needs to know if we are running on a TCH/F or TCH/H. Thus, we pass lchan_mode as a new parameter to the 'struct gsm_mncc'
2011-08-19src: port openBSC over libosmo-abis0.9.15Pablo Neira Ayuso1-2/+2
This is a big patch that ports openBSC over libosmo-abis. Sorry, the changes that are included here are all dependent of libosmo-abis, splitting them into smaller pieces would leave the repository in some intermediate state, which is not desired. The main changes are: - The directory libabis/ has been removed as it now lives in libosmo-abis. - new configuration file format for nanoBTS and HSL femto, we need to define the virtual e1_line and attach it to the OML link. - all the existing BTS drivers (nanoBTS, hsl femto, Nokia site, BS11 and rbs2000) now use the new libosmo-abis framework. - use r232 input driver available in libosmo-abis for bs11_config. - use ipa_msg_recv instead of old ipaccess_read_msg function. - delete definition of gsm_e1_subslot and input_signal_data. These structures now lives in libosmo-abis. Most of this patch are deletions of libabis/ which has been moved to libosmo-abis. This patch also modifies openBSC to use all the new definitions available in libosmocore and libosmo-abis. In order to do that, we have replaced the following: - DINP, DMI, DMIB and DMUX by their respective DL* correspondences. - SS_GLOBAL by SS_L_GLOBAL - SS_INPUT by SS_L_INPUT - S_GLOBAL_SHUTDOWN by S_L_GLOBAL_SHUTDOWN - SS_INPUT by SS_L_INPUT - S_INP_* by S_L_INP_* sub-signals - E1INP_NODE by L_E1INP_NODE vty node This patch has been tested with: - one nanoBTS - the HSL femto with the examples available under libosmo-abis - BS11 with both dahdi and misdn drivers.
2011-08-19src: use new msg->dst pointer instead of deprecated msg->trxPablo Neira Ayuso1-6/+13
This patch modifies openBSC code to use msg->dst which stores the pointer to the signalling link structure instead of the pointer to the transceiver structure. This patch prepares the introduction of libosmo-abis.
2011-08-10Fix MNCC for the NOKIA BTS typeHarald Welte1-0/+2
(thanks to Gus Bourg)
2011-08-10Initial version of Support for Nokia *Site BTSDieter Spaar1-0/+1
This includes the MetroSite, but also other Nokia BTS models.
2011-08-0904.08 / MNCC: elevate error messages to LOGL_ERRORHarald Welte1-5/+5
this way you can actually see them...
2011-05-07src: use namespace prefix osmo_* for misc utilsPablo Neira Ayuso1-4/+4
Summary of changes: s/bcd2char/osmo_bcd2char/g s/char2bcd/osmo_char2bcd/g s/hexparse/osmo_hexparse/g s/hexdump/osmo_hexdump/g s/hexdump_nospc/osmo_hexdump_nospc/g s/ubit_dump/osmo_ubit_dump/g s/static_assert/osmo_static_assert/g
2011-05-06src: use namespace prefix osmo_counter*Pablo Neira Ayuso1-10/+10
Summary of changes: s/struct counter/struct osmo_counter/g s/counter_inc/osmo_counter_inc/g s/counter_get/osmo_counter_get/g s/counter_reset/osmo_counter_reset/g s/counter_alloc/osmo_counter_alloc/g s/counter_free/osmo_counter_free
2011-05-06src: use namespace prefix osmo_signal*Pablo Neira Ayuso1-7/+7
Summary of changes: s/signal_cbfn/osmo_signal_cbfn/g s/register_signal_handler/osmo_signal_register_handler/g s/unregister_signal_handler/osmo_signal_unregister_handler/g s/dispatch_signal/osmo_signal_dispatch/g
2011-05-06src: use namespace prefix osmo_timer* for timer functionsPablo Neira Ayuso1-7/+7
Summary of changes: s/struct timer_list/struct osmo_timer_list/g s/bsc_add_timer/osmo_timer_add/g s/bsc_schedule_timer/osmo_timer_schedule/g s/bsc_del_timer/osmo_timer_del/g s/bsc_timer_pending/osmo_timer_pending/g s/bsc_nearest_timer/osmo_timers_nearest/g s/bsc_prepare_timers/osmo_timers_prepare/g s/bsc_update_timers/osmo_timers_update/g s/bsc_timer_check/osmo_timers_check/g
2011-04-18misc: Move from u_int to uint types of stdint.hHolger Hans Peter Freyther1-47/+47
This was done with sed on the files.
2011-03-23src: use new library libosmogsm and new path to headers in libosmocorePablo Neira Ayuso1-8/+8
libosmogsm is a new library that is distributed in the libosmocore. Now, openbsc depends on it. This patch gets openbsc with this change. This patch also rewrites all include path to the new osmocom/[gsm|core] Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
2011-03-20[RBS2000] Enable TRAU frame handling/muxing similar to BS11Harald Welte1-0/+3
Based on original patch by Gus Bourg <gus@bourg.net>
2011-03-04prefix sub-directories containing libraries with 'lib'Harald Welte1-0/+3345
... and make sure tests work again after restructuring
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