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2017-07-12move openbsc/* to repos rootNeels Hofmeyr1-994/+0
This is the first step in creating this repository from the legacy openbsc.git. Like all other Osmocom repositories, keep the autoconf and automake files in the repository root. openbsc.git has been the sole exception, which ends now. Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7
2017-06-18Add vty command "radio-link-timeout infinite" for uplink rx testingHarald Welte1-0/+2
When we are performing Rx sensitivity testing on a BTS, we want to deactivate the connection failure criterion / radio link timeout, i.e. no matter how many SACCH frames in uplink are failed to decode, the BTS should never close the channel. OsmoBTS Change-Id I736f21f6528db5c16fa80cdb905af20673797be5 covers a way how this behavior can be requested from the BTS via an OML attribute. This patch adds support to the BSC to actually set that attribute. Do not use this in production networks, as the BTS will keep open radio channels indefinitely even if the phone is gone and no longer transmitting anything. This is a pure testing feature. Change-Id: I6cb94e0f024934f7baeeb728ca9ed3042fbf16d2
2017-06-15Update SI data structures and generationMax1-7/+9
To support segmented SI2quater as per 3GPP TS 44.018 we'll have to support multiple SI messages (up to 16 for SI2q) for a given type in contrast to existing 1:1 mapping: * expand storage space to hold up to 16 SI messages (spec limit) * add assertions for budget calculations * generate multiple SI2q messages * adjust SI2q-related tests * use precise check for number of SIq messages instead of approximate estimation Change-Id: Ic516ec9f0b821557d9461ae9f1c0afdd786f3b05 Related: OS#1660
2017-06-15Move SI-related definesMax1-0/+7
* move SI2quater related defines to shared header * add define from OsmoBTS which checks for presence of a given SI message in gsm_bts struct. Rename it to avoid conflicts with OsmoBTS code and to match naming conventions of similar macros. Change-Id: I11432c93c772d1ead6d45a7bb0f1d13d492c82f1 Related: OS#1660
2017-06-09Get TRX attributesMax1-0/+1
Request per-TRX attributes in addition to BTS attributes. Change-Id: I2b61131b9930afd03357c0b66947ee856d58cc46 Related: OS#1614
2017-05-31Add remote BTS feature storage and helpersMax1-0/+22
In addition to compile-time defined BTS model features we also need run-time BTS features reported by BTS via OML. This should be shared by BSC and BTS. To accommodate for this, add following: * features bitvec to gsm_bts struct * features descriptions * comments to avoid confusion between 2 feature sets * helper functions to set/query particular feature * upper boundary on number of supported features and assertion for it Change-Id: I02bd317097ba66585c50ebd4e8fc348f6dc3dad9 Related: OS#1614
2017-05-29libbsc: Create pcu-socket only as specified in config fileHarald Welte1-0/+1
Since commit b4999b60d48bcbb5aa575973d068e07ab672e095 we created PCU sockets at hard-coded paths in the filesystem by default for all BTSs. This is inflexible and prevents the use of multiple BSC instances on a single filesystem, or the placement of the sockets in a more secure location than /tmp. The new approach with this patch is that * no PCU sockets are created by default * only for those BTSs where a 'pcu-socket' is configured via VTY, the socket will actually be created Change-Id: Ie9079470584777dcc31f85f9bf0808f479156ccb Closes: OS#2293
2017-05-25pcu_sock: add basic pcu interface supportPhilipp Maier1-0/+3
Adds a basic version of a pcu socket interface, similar to the one that can be found in osmo-bts. Change-Id: Ib13cb4099d12fa71e9e0b8727e19ab29e11909b2
2017-05-25gsm_data_shared: add value strings for gsm_chreqPhilipp Maier1-0/+1
Change-Id: I23d3be5610a5a46098d2b12feed4245828599aae
2017-05-18Remove errorneous includeMax1-1/+0
The gsm_data_shared.h header is installable and used by OsmoBTS so it should not include any private (non-installable headers) to avoid OsmoBTS' build failures. Change-Id: Ic25031101fc01bd732fe691132c081ad05fa6a4b
2017-05-15Restructure SI2quater generationMax1-2/+7
In preparation for extended SI2q messages: * add SI2q-specific accessor macro * add *_offset variables to gsm_bts struct * internalize memory check while generating rest octets - introduce budget concept (number of bits available in a given message) * internalize *arfcn_size() functions as they are not needed outside of si2q_num() anymore * change rest octets generation to work with gsm_bts struct directly * do not generate rest octets if no SI2q is necessary * adjust unit tests accordingly (cosmetic changes only to avoid regressions) Requires: I92e12e91605bdab9916a3f665705287572434f74 in libosmocore Change-Id: Ib554cf7ffc949a321571e1ae2ada1160e1b35fa6 Related: RT#8792
2017-05-15Prepare for BTS attribute reporting via OMLMax1-0/+4
* use define for number of attributes instead of magic number * add sub_model to gsm_bts struct * expand number of BTS features * mark attributes parameter to abis_nm_get_attr() as const Change-Id: I7ecb0c4339530d3a8354a2f94b34063dda87e030 Related: OS#1614
2017-05-10Use define for limit on number of BTS featuresMax1-1/+3
Change-Id: Ief81db0b3653fec180e60776ff9bcb0ac1357217 Related: OS#1614
2017-05-09Make BTS type and variant converters shareableMax1-0/+14
* move value_string definition and corresponding functions for BTS type to shared header to make it re-usable by OsmoBTS * use consistent function naming * add similar functions for BTS variant * add enum to be used by OML Attribute Reporting to distinguish between type, variant and other info Change-Id: Ida94725a6fce968443541e3526f48f13758031fd Related: OS#1614
2017-04-28Add gsm_bts_type_variant to gsm_bts structMax1-0/+1
Previously it was only in gsm_bts_model which is not initialized on BTS side. It's more convenient to have it in the struct which is available to BTS as well. Change-Id: I54fde8c4ccd5d994af08074f5864446e79a93a25 Related: OS#1614
2017-04-28Prepare for extended SI2quater supportMax1-1/+5
Supporting SI2quater as per 3GPP TS 44.018 will require chnages to the way System Information is stored because it uses 1:n instead of 1:1 mapping between SI type and generated SI content. This should not affect other SI types though. To facilitate this transition: * convert the code to always use GSM_BTS_SI helper instead of accessing buffer directly * make helper more robust by adding extra parenthesis * add similar helper for gsm_lchan * add function estimating number of SI2quater message to hold configured number of (U|E)ARFCNs * add SI2q index/count fields and pass them to rest_octets generator explicitly * internalize buffer access in generate_si* functions Change-Id: I74e4e3cb86364cec869a1472a41b4a95af0d50dd Related: RT#8792
2017-04-10gsm_bts: add version and variant detailsMax1-1/+18
* add version string to gsm_bts * add PCU version string to gsm_bts * rename GSM_BTS_TYPE_OSMO_SYSMO -> GSM_BTS_OSMOBTS to avoid confusion between BTS model and variant * add variant enum to gsm_bts_model using enum with variants for each hw vendor of OsmoBTS * show connected PCU version (if available) in vty via 'show bts' This will come in handy when logging details regarding particular BTS reported via OML, see: Related: OS#1614 Change-Id: I6710d53115f34634a7b70969cc05fd5c72ff8ab2
2017-03-23OM2000: Send ALTCRQ for SuperChannel after receiving IS Enable Req AckHarald Welte1-0/+1
When the BTS is configured to use a SuperChannel and it is using a unix domain socket based transport towards the L2TP daemon, then we must instruct the L2TP daemon to instruct the SIU to change the Abis Lower Transport Mode using the ALTCRQ / ALTCRP L2TP signalling. Change-Id: I672bfaa09c42fbeb0c8459f24b2222b952de954b
2017-03-15libbsc: add chreq type for CHREQ_T_PDCH_ONE_PHASE & CHREQ_T_PDCH_TWO_PHASEAlexander Couzens1-0/+1
When using a BSC located PCU the BSC must understand PDCH requests. Change-Id: Ie7f4ed000cf1b40d269873cf0ddf5ff9f5bbc18a
2017-03-07Add MS time. offset to gsm_lchanMax1-0/+6
Add MS TIMING OFFSET (3GPP TS 48.058 § 8.4.8) and P offset (3GPP TS 45.010 § 1.2) which can be used to compute MS TO from known TA. This will be used by osmo-bts (see I4dfe5c48834a083e757d5de3236a02e15a238b28) to provide MS TO as part of RSL MEASUREMENT RESULT. Change-Id: I8bda57c8d6c15bbb803eca708931556dae118a00 Related: OS#1574
2017-01-27rsl: Fix dropping of LAPDm UA message.Minh-Quang Nguyen1-0/+2
In some cases, when successive mobile originated calls are made, the LAPDm UA message gets lost because the channel is relased to early. Too overcome the problem we do not send release indications immediately. Instead a flag will be set and the message stored and sent on the next TCH-RTS-IND. This commit adds the required flag and the msg-buffer to struct gsm_lchan. See also coresponding change in osmo-bts.git: Change-Id Ie4f70c75f0137b4bd72d579b3a32575bac2fca38 This patch is is a slightly improved/reformatted version of: https://gitlab.com/nrw_noa/osmo-bts/commit/95d1f15ad108c1c1869c1965144acd64c1395d8c Change-Id: I15fc1ef8e9e83f009bde96de9a8e95702cffbce6
2017-01-26Implement VTY configuration to control Early Classmark SendingHarald Welte1-0/+1
The SI3 rest octests contain a flag that indicates if early classmark sending is allowed in this cell or not. So far we always set this to one, now it is configurable using the 'early-classmark-sending' command at the VTY node. Change-Id: Ia0b1cc5ab45673f3da70c59ae8917eba343f9862
2016-12-09lchan release in error state: SACCH deact only for SACCH pchansNeels Hofmeyr1-0/+1
This is useful particularly in case where we deactivate PDCHs which don't have a SACCH associated. The existin code would always attempt to deactivate a SACCH even in those cases, leading to the BTS responsding with related error messages. Change-Id: Iaf46782329b38ba8f3d438e6c75c2d467b852734
2016-12-02Move timezone settings up to network levelNeels Hofmeyr1-8/+0
Time zone used to be configurable per-BTS. In the upcoming MSC-split, no BTS structures will be available on the MSC level. To simplify, drop the ability to manage several time zones in a core network and place the time zone config on the network VTY level, i.e. in gsm_network. If we are going to re-add fine grained time zone settings, it should probably be tied to the LAC. Adjust time zone VTY config code (to be moved to libcommon-cs in subsequent commit). Adjust time zone Ctrl Interface code. Change-Id: I69848887d92990f3d6f969be80f6ef91f6bdbbe8
2016-12-02factor out & introduce struct gsm_encr, in common_cs.hNeels Hofmeyr1-6/+3
Factor out encryption info from struct gsm_lchan as struct gsm_encr, placed in common_cs.h. Change-Id: I94015fb9dd511c37c1e3058a0963c780b3f700ac Future: this will be used by libmsc's subscriber connection, for osmo-cscn.
2016-11-08WIP: OM2000: Full state machine implementation using osmo_fsmHarald Welte1-0/+39
Our existing OM2000 code for initializing all Managed Objects of a BTS at startup was never complete. Rather than trying to fix the old-style code, introudce a hierarchy of osmo_fsm's reflecting the full protocol hand-shake and sequence of bringing up the individual MO's. If this works out well, it mihgt make sense to convert the TS 12.21 OML code for other BTS models, too. Change-Id: I3e11b28ba22b8c227e0401e6207fdda5381dda8c
2016-10-28DTX DL: Add FACCH cacheMax1-0/+3
When DL DTX is active and silent period is in progress dtx.cache is populated by SID UPDATE message which about to be scheduled next. If at that moment FACCH message arrives (which have higher priority) we have to send ONSET message to L1 but we can't invalidate cache with SID UPDATE as it will be used for SID FIRST message to resume silent period after FACCH transmission is over (provided there were no incoming voice in between). Hence the necessity for separate buffer to store content of FACCH message while we're sending ONSET to L1 while keeping SID UPDATE cached. Change-Id: I316e81af893b24766bf259baaed7a0be75a11694 Related: OS#1801
2016-10-18Replace magic number with defineMax1-0/+4
Value 4 used as magic number by both OpenBSC and OsmoBTS so it make sense to add it to shared header. See ebb483b69a5319e522ba5f713e9cb6f68a814a6a in osmo-bts for details. Change-Id: I9c6ad68f4c6aa72d39ec7e5a6968b36ec20e79f4
2016-10-12DTX DL: use FSM for AMRMax1-12/+9
- consolidate all DTX-specific things in a separate struct - rename struct fields to better reflect meaning - add pointer to DL FSM for AMR - remove unused flag - expand buffer to hold cached payload alongside with CMR/CMI Change-Id: Idac8609faf9b5ced818fde899ccfc6ed0c42e8fd
2016-10-05DTX: add flag for AMR HR P*Max1-0/+5
Add flag to explicitly track the state of DTX DL for AMR HR whe SID_FIRST_P1 has been sent to L1 already but no next frame available yet: this can be followed by SID_FIRST_P2 or SID_FIRST_INH depending on arrival of voice frame within next 60 ms. Change-Id: Id28b07b8e83cfe5e84de48a2f124084036580cd4
2016-10-05DTX: extend SID cacheMax1-1/+1
In addition to RTP payload SID cache got to store CMR/CMI prefix. Extend the buffer so it can fit in. Change-Id: Ibd4a63604a82cad3ce65f0752bffefa4b083e1b3 Fixes: Coverity CID#149508
2016-09-28dyn TS: fix: e1_config.c: switch(pchan) for dyn TSNeels Hofmeyr1-0/+1
Add ts_is_tch() in gsm_data_shared.h/.c and use it to replace a switch on the pchan in e1_config.c. This patch is not due to an actual observed failure. A general grep for switch on pchan turned up this instance that doesn't handle dyn TS properly. Hence this patch is not actually tested with real equipment. Change-Id: Ide4f156034bab77140d2d9a8c462d68ae6f0d6a6
2016-09-17Modify SI 13 field for control_ack_typeMax1-0/+1
Add vty function to explicitly set use of 4xRACH type of ack message for PACKET CONTROL ACKNOWLEDGMENT. Previous hardcoded value (use RLC/MAC control block) is used as a default. This is handy for debugging issues related to Timing Advance in context of GPRS. Change-Id: Ie869ac0a82055110f1e3b875e246750c4e113336 Related: OS#1526
2016-08-27move ts_sublots() to gsm_data_shared.c, it will be used by osmo-btsNeels Hofmeyr1-0/+2
Change-Id: I8ba06d7dd6e0ceab3d8d18bb565354d6ed461f7e
2016-07-28dyn TS: implement pchan switchover logicNeels Hofmeyr1-0/+2
In struct gsm_lchan, add dyn.rqd_ref and dyn.rqd_ta. These save the Channel Requested details across the PDCH deactivation dance. abis_rsl.c: add static functions: * dyn_ts_switchover*() for the various stages of switchover between pchans. * pchan_for_lchant() to derive the desired pchan from the lchan type that was set during lchan_alloc(). * rsl_chan_activate_lchan_as_pdch() to compose the simpler RSL CHAN ACT message without introducing numerous special cases to the normal RSL CHAN ACT code. In rsl_chan_activate_lchan(), detect and initiate required pchan switchovers if requested pchan on a dyn TS differs. In rsl_rx_rf_chan_rel_ack(), initiate or continue pchan switchovers after a channel was released. In rsl_rx_chan_act_ack(), notice that a switchover is complete. In chan_alloc.c, add ts_subslots(): abis_rsl.c will need to know the number of subslots per pchan, to verify that all lchans are free before dyn TS switchover. The subslots_per_pchan[] array is static to lchan_alloc.c, and since we need a non-trivial check for dyn TS anyway, add public ts_subslots() to lchan_alloc.c, which also checks the current dyn pchan type. Change-Id: I5c6bce13092a10204113d84678c587c65e35e4fd
2016-07-28dyn TS: gsm_lchan2chan_nr(): decouple from ts->pchanNeels Hofmeyr1-1/+4
For upcoming dynamic TS, the pchan choice for RSL De-/Activation is not trivial. So in order to pass the desired pchan to generate the RSL chan_nr, introduce gsm_lchan_as_pchan2chan_nr(). To avoid code dup, this requires decoupling the gsm_ts2chan_nr() pchan from the actual ts struct, so refactor gsm_ts2chan_nr() to gsm_pchan2chan_nr() with explicit pchan, ts_nr and lchan_nr arguments. Change-Id: I1a40e8452fe8120d350a27973e56be0b8c8c517f
2016-07-28dyn TS: rename lchan->dyn_pdch to lchan->dynNeels Hofmeyr1-1/+1
This will also be used by the new dynamic TS type, so make the name more general. Change-Id: I2451b10519dff3e5cdf503b430574c0984d19000
2016-07-28Modify SI 13 field to support 11 bit RACHbhargava1-0/+1
System Information 13 field EGPRS PACKET CHANNEL REQUEST is modified to support 11 bit RACH. Further VTY configuration is added to enable/disable 11 bit RACH support in EGPRS. By default 11 bit RACH support is disabled. Change-Id: I51357bec936c28a26ab9ff5d59e0e30ca3363297
2016-07-25code dup: join [rsl_]lchan_lookup() from libbsc and osmo-btsNeels Hofmeyr1-0/+2
lchan_lookup in abis_rsl.c and rsl_lchan_lookup() from osmo-bts rsl.c are the same code, except for the log context, which is only set in abis_rsl.c. Factor out the common code to rsl_lchan_lookup() in gsm_data_shared.c. Openbsc and osmo-bts each define their own DRSL log constant, so add an int *rc return code argument and keep the logging part in abis_rsl.c's thin lchan_lookup() wrapper. Incidentally, this also removes code dup for logging. To avoid duplicate symbols, the rsl_lchan_lookup() implementation needs to be removed from osmo-bts, so older osmo-bts git revisions will not build with this. Change-Id: Ie89bc5bb9110a0e539d37991dedac6f913211b48
2016-07-25gsm_data_shared: add gsm_ts_and_pchan_name() for dyn ts loggingNeels Hofmeyr1-0/+1
Change-Id: I9b6be77c9e5fb9dffa2021a2da72293af15a03a0
2016-07-25dyn TS: add ts->dyn stateNeels Hofmeyr1-0/+6
Add state fields osmo_bts_trx_ts->dyn.* to record dynamic timeslot state. Initialize in gsm_bts_trx_alloc(). Change-Id: I0a4049df8500b4f7c864f1355c4e9238932d1b8f
2016-07-24fix ctrl test: dyn TS: use new GSM_PCHAN_TCH_F_TCH_H_PDCHNeels Hofmeyr1-2/+2
Add GSM_PCHAN_TCH_F_TCH_H_PDCH in gsm_pchant_names and gsm_pchant_descs: the VTY and CTRL can now handle the new pchan type. Adjust the CTRL iface test to expect the new PCHAN type in the output. Fixes make check with --enable-external-tests after libosmocore commit fd80f5a04239c2ab7b561401476dd89f2861748b that adds GSM_PCHAN_TCH_F_TCH_H_PDCH. Change-Id: I4ad9c972d7f76f7e20cf74d6fc3d1928b644a4f8
2016-06-18rm dup: use channel type names from libosmocoreNeels Hofmeyr1-1/+0
In gsm_lchant_name(enum gsm_chan_t), use the gsm_chan_t_names value strings from libosmocore instead of redefining the same strings. The list from libosmocore is also more complete, including CCCH and PDTCH. Add a todo comment to move to libosmocore. In consequence, libosmogsm linkage needs to be added to osmo-bsc_mgcp, mgcp_test, mgcp_transcoding_test and smpp_mirror, smpp_test. Change-Id: If65ee7c0619cbc0acb0a15045bd5a969442c93cc
2016-06-16dyn PDCH: TS flags: rename one, add three, as enumNeels Hofmeyr1-1/+8
Rename TS_F_PDCH_MODE to TS_F_PDCH_ACTIVE, to more accurately reflect the truth value's meaning. Add TS_F_PDCH_ACT_PENDING and TS_F_PDCH_DEACT_PENDING for sysmoBTS (and possibly other BTS implementations) to remember what to do when the PCU replies with a channel de/activation. Also add TS_F_PDCH_PENDING_MASK to test for both. Change from #define to an enum. Note: These flags are also used in the upcoming osmo-bts-sysmo dyn PDCH commits, so osmo-bts submission depends on this commit. Change-Id: I391a103ab599648b0c5d4f3ad613a6d7c48834b3
2016-06-14dyn PDCH: Automatically deactivate/activate PDCH on TCH/F+PDCH channelAndreas Eversberg1-0/+6
Handle shared TCH/F+PDCH channels as regular TCH/F channels. Prior to activation, deactivate PDCH mode. After deactivation, restore PDCH mode. Change-Id: I59712b8769cc3959ef114a6e12e77801816fe8b6
2016-06-12Add talkspurt indicator for gsm_lchanMax1-1/+2
Add bit which can be set on BTS side to indicate that next RTP frame should be marked as a beginning of speech. Change-Id: I355a5ae275a2743b29071924c916c4f68c3b3e80 Related: OS#1562
2016-06-10DTX: add data necessary for schedulingMax1-0/+5
DTXd: to schedule SID repetition we have to know when previous SID was sent (fn) and if it was UPDATE or FIRST SID (is_update). DTXu: to properly set Marker bit in outgoing RTP we have to know the beginning of talkspurt. For codecs without explicit ONSET event we can do it by setting the flag (ul_sid) upon receiving SID and unsetting it on speech frames. Change-Id: I79cbec3b6c6fed5de385f8e202ceaf0b13234778 Related: OS#22, OS#1701
2016-06-10Add DTXd indicator to gsm_lchanMax1-0/+2
It is necessary for proper reporting of DTXd status during the measurement period. Change-Id: I4a033b03fcd0deb4db7a38273b5407511dbf1d6c Related: OS#1701
2016-06-03Store last used FN for TCHMax1-0/+1
It's necessary to properly compute timestamp compensation for RTP packets in case of DTX (or heavy packet loss). Related: OS#22 Change-Id: Ib42c6a8614a4b73333a83181488dd4069cac14d7
2016-05-17Move DTX settings to BTSMax1-1/+5
* Add per-BTS DTX settings * Configure Uplink and Downlink DTX separately * Deprecate global DTX option (it was never tested/used anyway) * Use libosmocore function for DTX indicator in System Information (previously it was incorrectly assigned for half-rate channels) Related: OS#22 Change-Id: I3d55168475ad47044b6238b55846ea22bdd518a4 Reviewed-on: https://gerrit.osmocom.org/40 Tested-by: Jenkins Builder Reviewed-by: Holger Freyther <holger@freyther.de>
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