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2017-01-08VIRT-PHY: Added functionality to cooperate with osmocom-bb virt-phy.Sebastian Stumpf28-391/+1640
This patch improves the virtual physical layer designed to replace the air interface. The purpose is to get rid of the hardware requirements and be able to start testing and implementing layer 2 communication functionality on one machine. Multicast sockets are used to enable bidirectional communication between the BTS and the MS process. The GSMTAP protocol designed for wireshark capturing is used to encapsulate the payload on the virtual physical layer. * Working mcast socket communication and extraction of its functionality. * Fixed OML and RSL startup sequences. * Icludes tests for mcast socket and virtual UM. * Ecapsulation and parsing methods to and from GSMTAP messages. * Basic handlers for file descriptor callbacks from incoming mcast messages. * Multiplexing to different channels based on GSMTAP header channel type.
2017-01-05WIP: Initial check-in of a new virtual BTSHarald Welte13-1/+1586
2016-12-22Integrate Debian packaging changesMax3-7/+29
debian/control: * restructure to make it easier to incorporate further changes * update package descriptions * update project URL debian/rules: * use proper hardening syntax * restructure to make it easier to incorporate further changes * remove useless comment * add cleanup and test overrides debian/compat: update compatibility version Change-Id: Ibf62448eee1df914d21834f5b54831e3f642b79c Related: OS#1694
2016-12-22Fix some spelling errorsRuben Undheim1-1/+1
Change-Id: I5b57102f961f8fd7fb0689ceeaa37dd021535b17
2016-12-22DTX: don't always perform AMR HR specific checkJean-Francois Dionne1-6/+8
Disable check specific to AMR HR if not DTX is enabled. Change-Id: I8af1daffbd7e59fef6e671dbd9b820497f82d354 Fixes: OS#1892
2016-12-16Optionally use adaptive RTP jitter bufferingMax4-9/+34
* add vty option to manually enable adaptive RTP jitter buffering (disabled by default) on per-bts level * use this setting on per-lchan level when setting jitter parameters via vty at runtime * check and log result of osmo_rtp_socket_set_param() * note: older libosmo-abis will ignore this setting which will be properly detected via return value * if jitter buffer is disabled by configuring "rtp jitter-buffer 0" than adaptive buffering is disabled as well but it will be used if jitter buffer is set to different value for a givel lchan via vty Change-Id: I489f3c419039f40b57c2ef0641c176478b8d3566
2016-12-15DTX: fix TS adjustment for ONSETMax1-5/+15
Previously timestamp was always adjusted according to FN difference. In case of ONSET event this causes unnecessary TS gap with subsequent speech packet. Fix this by checking Marker bit before performing adjustment. Change-Id: I9bf4b45aa990dd4014334dd846f43f793366056c Related: OS#1801
2016-12-12osmo-bts-trx: fix lchan deactivationMax1-2/+4
Use chan_nr for deactivating lchan instead of lchan->nr: chan_nr is the RSL Channel Number IE value, a bitfield aggregation of lchan type bits (cbits) and lchan number (lowest three bits). The error was introduced in 36153239bfd0b633c4d259a9de0a759f41197a2b. Change-Id: I6dd7060422ab9d18743c1ff2ab419e3e7299d74d
2016-12-09Save RTP metadata in Control BufferMax2-3/+18
Having RTP metadata is useful for debugging - save Sequence Number and Timestamp next to Marker bit from RTP header. Change-Id: I359b3bcb74fbfc071547fe2f9d837829374fe997
2016-12-08DTX: add explicit check if DTX enabledMax1-0/+3
Check explicitly if DTX is enabled for AMR before checking if SID frame repetition is optional. Change-Id: I660688d56505798cade1495c30338fd6806a3259 Related: OS#1801
2016-12-05TRX: prevent segfault upon phy initMax2-7/+13
Previously if multiply phy instances were configured but not used osmo-bts-trx would segfault. Terminate with clear error message instead so user can correct configuration. Example configuration which caused problem: ... phy 0 instance 0 instance 1 ... trx 0 phy 0 instance 0 Note the 2nd instance of phy 0 which is not used in trx later on. Change-Id: Id979506731ea92401458f1060e87aeb690901539
2016-12-02bursts test: test_pdtch: pre-init result memNeels Hofmeyr1-0/+2
Fixes: CID#57943 Change-Id: I4547f47c4150759d5c4ab790e34e91b784b03b39
2016-12-01Fix AGCH/PCH proportional allocationMax10-50/+44
Do not assume that 1 == BS_AG_BLKS_RES but take that information from SI3. Note: due to current implementation quirks we activate channels before SI3 obtained, than we deactivate channels upon receiving SI3 and activate them again. This might not be necessary once we migrate to proper OML state machines. This affects lc15 and sysmo hw. Change-Id: I11377b12680ac3b2f77f80e742b6f0af63fc9c1e Related: OS#1575
2016-12-01cosmetic: vty prompts: add space after '#'Neels Hofmeyr1-4/+4
Typically, our VTY prompts have space after the '#', but some of the osmo-bts VTY prompts don't: OsmoBTS# configure terminal OsmoBTS(config)# bts 0 OsmoBTS(bts)#gsmtap-sapi ccch Add spaces after the '#' to yield e.g. OsmoBTS(bts)# gsmtap-sapi ccch Change-Id: If0591a359e77f01abb76c4113181af7a7733ddd4
2016-12-01Remove duplicated codeMax11-21/+45
Remove lchan deactivation related code duplication to facilitate future use for dynamic CCCH re-activation. Change-Id: Id0d3b19dbfaa16d1734321a07a6eb0355bfd77c9
2016-12-01DTX DL AMR: rewrite FSM recursionMax8-137/+270
Add explicit state for recursion (sending the different payload data in response to the RTS request for same FN) and corresponding transition. Remove ST_FACCH_V as with new explicit recursion handling it becomes unreacheable. This makes it easier to maintain preemption (interruption of current procedure due to FACCH or Inhibition). This also reduces the number of possible transitions out of each state thus reducing graph's cyclomatic complexity. Change-Id: If39b68083d23a4a35f468a5d75f54eb733ebfd14
2016-12-01trx: Add "maxdlynb" VTY command to control max TA for Normal Bursts.Alexander Chemeris5-1/+68
Originally `maxdly` command in osmo-trx was contrlling max TA for Normal Bursts. This was not a proper behaviour, because it was used to "control maximum distance a handset can attach from" which is controlled by Access Bursts max TA. Osmo-trx was corrected to apply `maxdly` to Access Bursts and a new command was introduced to contrl max TA for Normal Bursts - `maxdlynb`. This patch adds support for this configuration command into osmo-bts-trx. If you wonder why would you need that - some test equipment (namely R&S CMD57) has really bad timing sync and can generate signal a few symbols off. That prevents osmo-trx from properly receiving otherwise perfectly good bursts generated by CMD57. This configuration is a solution for this. Change-Id: Ib5d255299668ac1ef9f0ce95e016f55ba3c82277
2016-11-30jenkins: add jenkins_bts_model.shNeels Hofmeyr1-0/+33
Change-Id: Ie7c32e68f789414fdf3c407c0da06cbf983f751a
2016-11-30add jenkins_oct_and_bts_trx.shNeels Hofmeyr1-0/+65
Change-Id: Ib656d4592f5210e2c180f511a1c955d14397bd03
2016-11-30add jenkins_bts_trx.shNeels Hofmeyr1-0/+49
Change-Id: Ie27ffb72140cb37e6a05bffd90551197f1e9b5fc
2016-11-29osmo-bts-trx: remove obsolete include of netif/rtp.hNeels Hofmeyr1-2/+0
Change-Id: Idf364fd7d69446a7a996062f71d701d9c6cca84c
2016-11-27octphy: multi-trx support: fix AC_CHECK orderPhilipp1-1/+1
The header file octphy/octvc1/gsm/octvc1_gsm_default.h is not visible to the configure script when the octphy header files are referenced via --with-octsdr-2g instead having them installed in /usr/local/include. This results in a failed AC_CHECK_MEMBER check for tOCTVC1_GSM_TRX_CONFIG.usCentreArfcn, even if header files with multi-trx support are used. The configure.ac script manipulates the CPPFLAGS in order to make the octphy include files visible to AC_CHECK_ and restores the original CPPFLAGS when done. This is required when --with-octsdr-2g is used. AC_CHECK_MEMBER is executed before the CPPFLAGS are manipulated. This causes no issues if the headers are properly installed to /usr/local/include, but does not work when --with-octsdr-2g is used. This commit moves the AC_CHECK_MEMBER command into the section where the manipulated CPPFLAGS are valid in order to fix the problem described above See also commit: f5494e84e898f947190466d30d5f932bac0fadf9 Change-Id: I7bdfa4449cd6061c395cce315b372c2833520e37
2016-11-25vty: Ensure to not use negative (error) sapi valueHarald Welte1-0/+2
Change-Id: I282311de8514c1cc0a1b716e97e90ddf48863bb4 Fixes: Coverity CID 57617 Fixes: Coverity CID 57618
2016-11-23cosmetic: tweak READMENeels Hofmeyr1-20/+21
I noticed that the README is prominently shown on github, so it makes sense to get rid of the worst typos and misinformation there. Change-Id: I60defef6224a78bb84d7d0b57bc8da17ad7877bb
2016-11-16vty: Add commands to manually activate/deactivate a channel.Alexander Chemeris1-0/+60
This is the easiest way I found to make BTS level loopback to work. Another way to implement this is to have BSC/NITB to send the OML command, but it's a longer path with no clear benefits. Note, that the current code hardcodes the channel to be TCH/F with v1 speech, which is what we need for the basic BER testing. We may want to extend this later to support more channel types. Change-Id: Ia2734afeff023e5b3d6b934c7e8b1ed95a071b72
2016-11-14l1sap: Fix use-after-free in loopback mode.Alexander Chemeris1-0/+3
By default l1sap_tch_ind() returns 0 which signals to its caller that message has been processed and can be freed. In case of loopback we're forwarding the message to dl_tch_queue who will free it later. Returning 1 from l1sap_tch_ind() prevents caller from freeing message. Change-Id: I1e065075baa51c88fa717f132e1f0a83df68be02
2016-11-11Replace link_id constant with defineMax6-53/+57
Instead of using constant for link_id directly, use shared define value. Change-Id: Ibf3d439d8893bd994ba089796175b6c635db2cf8
2016-11-11Remove duplicated codeMax1-13/+11
Having duplicated code to fill in fn & tn values makes it harder to read and modify static gsmtap_p* functions. Fix this by removing the duplication and moving the common code one level up. Change-Id: I0e67bf7423424cc11435bc0a5a1110297eeee383
2016-11-09fix 'osmo-bts-* --version' segfaultNeels Hofmeyr1-1/+1
Call vty_init() before handle_options() to make sure the host.app_info is populated before --version potentially tries to print it. Change-Id: Ic87b5498b57b2f0f876171a15e769b74c28348c1
2016-11-08dtx_check.gawk: add check for repetitive SID FIRSTMax1-0/+4
Change-Id: Id7acdfae7880fb488b65435ab8d33f2874499967
2016-11-08Add libosmocodec for octphy buildMax1-2/+2
Similar to 45822227577cba5c6c4a4d4d61a7a9e8b4992c25 fix build by linking with libosmocodec explicitly. Change-Id: Ib52135936ae02d804b60f61088b4bdd227a71aa0
2016-11-08DTX: wrap FSM signal dispatchingMax3-6/+12
Make wrapper function which checks that DTX is enabled for lchan before dispatching any events. Change-Id: Id8b519c4af6d505ec9a4b9aadd5107bf7af53d66
2016-11-08DTX DL: tighten check for enabled operationMax7-9/+19
Introduce dtx_dl_amr_enabled() function which checks that DTX is enabled and FSM is allocated and use it for all corresponding checks. Change-Id: Ifa68b641265ed14f242765c85e40da2d1021a541
2016-11-08Fix tests linking with libosmocodecMax3-6/+6
Change-Id: I051302f867d70dfbc39bd52d75101eb262f87459
2016-11-08dtx_check.gawk: Fix false-positives in DTX checkMax1-3/+3
Previously, if ONSET happened exactly at the place where next SID FIRST or UPDATE should be it was incorrectly detected as error. Similarly, continuos FACCH was misinterpreted as error. Change-Id: I43fdbceea0dbdb0833c3b1cf0fc3b825803ed30e
2016-11-08Initialize parameters in osmo-trx for 11bit RACHbhargava1-0/+4
The parameters related to support 11bit RACH are initialized in osmo-trx. These parameter determaine the type of the RACH received in osmo-pcu. Change-Id: I164d449303373d0757719d5204f4716975fb517a
2016-11-03DTX fix ONSET handlingMax9-32/+66
* re-introduce ST_ONSET_F to guard from repetitive ONSET messages in case multiple FACCH occur duriing DTX silence period. * produce ONSET event after both SID FIRST and UPDATE in case of AMR FR. * always dispatch E_SID_F (SID FIRST) signal if in talkspurt. * allow E_SID_* right after ONSET (zero-length talkspurt). * add missing E_ONSET signal description. * fix FSM transitions for AMR HR *Inhibited and First P*. * fix incorrect return from l1if_tch_encode() in ONSET FACCH with incoming SID UPDATE Change-Id: I0e9033c5f169da46aed9a0d1295faff489778dcf Related: OS#1801
2016-11-03DTX DL: add AMR HR support to scheduling checkMax2-19/+38
superfemto.sh: Expand log converter to use case-insensitive matching to accommodate for spelling differences in DSP logs. Add strings/events specific to AMR HR. dtx_check.gawk: Remove redundand variables from output. Add checks specific to AMR HR. Change-Id: Icce3178605f46bbf3cad15d4eaff18a4d164ad1a
2016-11-02Remove obsolete defineMax1-3/+0
It was moved to OpenBSC in 582e4f627674f46310a90d9061e82fb342051b42 as it's used by both projects. Change-Id: I8aba987e3cdaa840cf3e14913a8455b0ba759889
2016-10-28DTX DL: split ONSET state handlingMax7-35/+120
Handle ONSET cause by Voice and FACCH separately. In case of Voice we have RTP payload which we have to cache and send later on in next response to L1 RTS. FACCH have higher priority so it preempts both voice and silence alike - hence we can send ONSET immediately but still have to track previous state in order to get back to it gracefully. This affects lc15 and sysmo hw as there's no FSM-based DTX implementation for other models yet. Note: this requires patch for OpenBSC which adds FACCH buffer to tch.dtx struct. Change-Id: Idba14dcd0cb12cd7aee86391fcc152c49fcd7052 Related: OS#1802
2016-10-2711bit RACH support for osmo-bts-litecell15bhargava1-3/+40
Based on the indication from L1, number of bits in RACH and burst type is determined. Appropriate parameters are filled in osmo-bts-litecell15. These parameters are sent to osmo-pcu for processing of the RACH. Change-Id: Ie5207a15424fb287febf74e830297531232accde
2016-10-26Add tools to check DTX operationMax2-0/+176
* superfemto.sh can parse superfemto-compatible DSP log output to properly sort records into MT/MO and DL/UL parts * dtx_check.gawk can process output of superfemto.sh and check for common scheduling errors This allows to check lc15 and sysmo for errors in DTX DL scheduling. As dtx_check.gawk is generic it can be used with any other BTS hw (or virtual BTS) as long as raw logs from this hw can be converted to simple input format 'FN EVENT' per-line. Change-Id: Ib1c70c4543b24c2a05a7df8eec5ce3f4eda2c02e Related: OS#1801
2016-10-24Fix DTX DL AMR SIDscheduling logicMax1-9/+14
Previously SID UPDATE was sometimes scheduled incorrectly. Fix this by: * avoid rounding error when computing scheduling time difference from FN * properly saving and updating cached SID type and FN Change-Id: I7acffae4792e7bddc2ae19a2f04ee921dc194c36 Related: OS#1801
2016-10-24DTX HR - fix array size calculationMax1-1/+2
Use ARRAY_SIZE macro for each pointer separately. Fix suggested by Neels Hofmeyr <nhofmeyr@sysmocom.de>. Change-Id: I68ec1be33fb743977121d654187d85d6b8451e2b Fixes: Coverity CID 150132
2016-10-21Extend RTP RX callback parametersMax2-2/+4
Adopt to change in libosmo-abis to accept additional parameters in RTP RX callback function. Change-Id: Icf41e568f041e87b38e6192af0be90c42362bfee
2016-10-18jenkins-oct.sh: fix build: typo in deps pathNeels Hofmeyr1-1/+1
Change-Id: I05014e25ffc829fa2fc3973471baa28f7f5a62c9
2016-10-18Fix lc15 buildMax1-1/+1
The error seems to be introduced in 21142f789812553b56f493d79184f5a31ab7b1cd Change-Id: I620ac6774fb47479d74bc4470ccc6edd379600ba
2016-10-18Replace magic number with defineMax7-12/+18
SDCCH occupy lchan 0..3 in combined configuration so for CCCH we've always used lchan[4] - replace it with CCCH_LCHAN define and add comment. Change-Id: Ic5d742c292d638f119c6b4672120c1950adeb7f0
2016-10-17DTX AMR - fix buffer length checkMax1-1/+2
Consider AMR-specific prefix in computing max length to avoid triggering coverity check. Change-Id: I2fbc468caedf08f26893457db7c7fbacef5b860c Fixes: Coverity CID 150133
2016-10-14msgb ctx: use new msgb_talloc_ctx_init() in various main()sNeels Hofmeyr7-24/+7
Change-Id: I31d62d5e1f0b272985fdef5013270d385c4b988a