It seems we forgot the release announcement in early August:
The Osmocom project has released new version of the CNI (Cellular Network Infrastructure) software, including OsmoTRX, OsmoBTS, OsmoBSC, OsmoMGW, OsmoMSC, OsmoHLR, OsmoSGSN, OsmoGGSN.
Those new tagged/released versions contain four months of work since the previous versions released during April 2019. The primary focus was on bug-fixing and stabilization as well as some major new features, such as inter-MSC-handover support in osmo-msc.
You can find pre-compiled binary packages of our latest release for a variety of Debian and Ubuntu GNU/Linux versions at Latest_Builds.
List of tagged versions and link to related ChangeLog¶
Noteworthy Changes¶
Misc / Common¶
- debian packages now have
-doc sub-packages containing the corresponding user and VTY reference manuals of each program.
- various robustness fixes
- support LAPDm payloads with more than 200 bytes
- fsm: Allow millisecond granularity in osmo_fsm built-in timer
- CBSP (Cell Broadcast Service Protocol) implementatin in libosmogsm
- vty parser fixes: don't pass incomplete arguments to vty funcs
- work around gcc bug with gcc < 7.3.0 on ARM related to thread-local storage
- shared IPA keep-alive FSM in libosmocore; use it wherever possible
- libosmo-netif Stream client: fix disconnection logic
- new protocol (TRXDv1) support, mainly for passing C/I value from TRX->BTS->PCU for rate adaptation
- proper counting of under/overruns
- LimeSuite stability improvements (recovery / re-synchronization after drop-outs)
- various internal refactoring / code de-duplication
- fix ARM VFP4 convolution
- LimeSuite: automatic detection of device type and device specific gains
- Various Abis OML protocol conformance fixes
- handling of GPRS SUSPEND (from DCCH -> PCU)
- Full CBCH (Cell Broadcast Channel) support, both basic and extended
- RSL CBCH LOAD INDICATION for CBCH flow control
- RSL BS POWER CONTROL support
- Fix RACH load percentage computation
- clear GPRS indicator form SI3 when PCU is not connected
- fix (so far ignored) MS power control in RSL CHANNEL ACTIVATION
- osmo-bts-oc2g specificx
- systemd service file + example config installation
- status LED fixes
- nominal transmit power fix
- generate failure event report if calibration data missing
- osmo-bts-trx specifics
- TRXDv1 protocol support
- 11-bit RACH support
- Various AMR rate handling related fixes between AoIP and Abis
- AMR: Signal usage of octet-aligned or bandwith-efficient mode to MSC
- various inter-BSC hand-over related fixes for AoIP
- various manual updates, including documentation for 3G/4G neighbor cells, OSMUX, ...
- always default to octet-aligned AMR mode
- keep per-BTS statistics about RACH utilization
- re-introduce support for IPA-encapsulated MGCP (used with osmo-bsc_nat)
- OSMUX support with AoIP (we only supported it with SCCPlite so far)
- support assigning TCH/x in signaling mode
- Add SGs interface for CSFB (circuit switched fall-back) and SMS-over-SGs
- various SMS and USSD handling related fixes
- include libsmpp34 memory allocations in talloc reports
- Fix SMS transmission over Iu (use SAPI3)
- allow user to disable retrieval of IMEISV early
- allow transmission of IMEI to HLR (for subscriber-create-on-demand)
- support inter-BSC hand-over
- support inter-MSC hand-over
- do not force encryption on UTRAN/Iu
- OSMUX support with AoIP
- document
--db-upgrade command line argument
- optionally store IMEI in subscriber table (for non-standard subscriber-create-on-demand)
- support routing of GSUP messages between clients (MSCs) for inter-MSC hand-over
OsmoMGW (and libosmo-mgcp-client)¶
- Add config option to use RFC5593 for GSM HR frames (we normally use ETSI TS 101318 format)
- SDP parsing related fixes
- Support OSMUX configuration via MGCP (activated via BSC and MSC)
- support international Caller-ID
- support emergency calling
- handle SIP re-invite
- support MNCC HOLD/RETRIEVE
OsmoSTP (and libosmo-sigtran)¶
- enable statsd export
- fix bug when saving config file (pointcode+mask of route)
- enable memory usage debugging via talloc introspection
- various parser correctness imporvements for LLC
- send Iu Release Command upon Attach Complete
- send Service Reject when no PDP contexts available
- fix GTP echo behavior
- require GMM authentication by default
- various PCO handling related improvements/fixes
- minimalistic PAP support during PDP context activation
- fix missing GTP-C re-transmission
- Introduce new pdp APIs (and deprecate old ones) to support multiple GSN
Thanks to the great support of the OpenSuSE Build Service, Osmocom is now offering binary package feeds for the popular Raspbian distribution, Version 9.
As a result, running Osmocom CNI (Cellular Network Infrastructure) on Raspbery Pi embedded computers is easier than ever: Just add the Latest_Builds
or Nightly_Builds feed to /etc/apt/sources.list[.d] and run your Osmocom based 2G and/or 3G cellular network.
The feeds are available from
The Osmocom project has released new version of the CNI (Cellular Network Infrastructure) software, including OsmoTRX, OsmoBTS, OsmoBSC, OsmoMGW, OsmoMSC, OsmoHLR, OsmoSGSN, OsmoGGSN.
Those new tagged/released versions contain half a year of work since the previous versions released during summer 2018. The primary focus was on bug-fixing and stabilization as well as some major new features, such as inter-BSC-handover support in osmo-bsc.
You can find pre-compiled binary packages of our latest release for a variety of Debian and Ubuntu GNU/Linux versions at Latest_Builds.
List of tagged versions and link to related ChangeLog¶
Noteworthy Changes¶
Misc¶
- the asciidoc source of the user manuals + VTY reference manuals is now always kept inside the respective repository: osmo-bts.git contains the osmo-bts manual. Before this, we used to have all manuals in osmo-gsm-manuals.git.
- logging vty: deprecate the 'everything' keyword
- various logging related improvements
- various improvements of osmo_fsm
- new osmo-config-merge utility
- SGsAP protocol encoding/decoding (SGsAP not yet part of osmo-msc!)
- GSMTAP definitions for LTE RRC and NAS sub-types
- introduce osmo_timerfd support as part of libosmocore (recurring timers)
- Introduce OsmoTRX user manual
- Direct support of LimeSuite as
osmo-trx-lms without the detour of uhd+soapy-uhd+soapysdr
- split device-specific parts into their own classes + binaries: osmo-trx-{uhd,lms,usrp1}
- make better use of diferent logging sub-systems / log levels
- various correctness fixes related to advanced SACCH FILL scenarios with different SI5/SI6 per channel/subscriber
- various fixes to bit-rotten CBCH support; related generalization
- CBCH support for osmo-bts-trx
- extend precision of TOA mesaurement reports to 1/256 symbol duration
- make RTP port range configurable
- extensive fixes on correctness of computed + reported measurement reports
- Fix build against gpsd >= 3.18
- Allocate TRX for BTS dynamically, deprecate "-t" command line option
- Initial support for OpenCellular OC-2G BTS model/PHY
- inter-BSC hand-over support (AoIP and SCCPlite)
- large refactoring: use FSMs for lchans; timeslots; MGCP endpoints; ...
- Implement RR Classmark Enquiry in case
- various LCLS related fixes
- various codec / channel type related fixes during ASSIGNMENT
- interop tested against 3rd party MSCs for both AoIP and SCCPlite
- Implementation of MSC-originated CLASSMARK inquiry procedure for MS/UE without early classmark sending to allow A5/3 encryption
- mncc: fix byte ordering of IP-Address in mncc
- various improvements on state introspection via VTY
- forward SS / USSD messages via GSUP to HLR rather than processing it in MSC
- optional forward of SMS via GSUP to/from HLR rather than using internal SMSC
- fix Classmark Update without VLR subscriber
- vty: add SCCP related vty commands
- GSUP client: send CN domain IE on LU request
- vty: add command to show all known BSC
- Add GSUP message router
- Add concept of Internal (IUSE) and external (EUSE) USSD handlers
- Implement handling of USSD received from OsmoMSC via GSUP
- Introduce shared libosmo-gsup-client library for client programs connecting to OsmoHLR (like OsmoMSC, OsmoSGSN).
OsmoMGW (and libosmo-mgcp-client)¶
- Remove libosmo-legacy-mgcp and osmo-bsc-mgcp (they live in deprecated openbsc.git)
- various OSMUX related fixes
- use IETF-allocated port number for call-agent side as default
- introduce the concept of payload type maps
- rewrite/translate payload type numbers as per the ptmap
- make MGCP parser more tolerant (and interoperable)
- add extensive statistics / counters and improve VTY introspection
- various logging improvements (more strings, less numbers)
- better SIP/MNCC cause mapping
OsmoSTP (and libosmo-sigtran)¶
- make SCCP timers configurable (required for some SCCPlite peers)
- osmo-stp: add SCCP related VTY commands
- allow less characters for SCCP address book entries
- skip simple-client default as/asp when saving VTY config
- fix ipa_asp_fsm down state transition
- gprs_gmm: introduce a GMM Attach Request FSM
- sgsn_ggsn_ctx_drop_pdp: protect against nullpointer when MM is gone
- gprs_gmm: dont answer unknown IMSI/TMSI on Service Requests NET_FAIL
- gprs_gmm: Fix missing Security Command for 3G when attaching
- sgsn_libgtp: fix a potential memleak when the GGSN is not reachable
- gb_proxy: Add ctrl interface and nsvc-state, gbproxy-state commands
- osmo-sgsn: ping GGSN periodically and check for restart counter
- Disarm T3395 when dettaching mmctx from pdpctx
- sgsn: cdr: Fix uninitialized string access if ggsn is detached
- gbproxy: Add VTY parameter: link stored-msgs-max-length
- gbproxy: Add new VTY-managed timer: link-list clean-stale-timer
- Remove local libgsupclient; Use libosmo-gsup-client from osmo-hlr
- ggsn: ctrl iface: listen on IP configured by VTY
- gtp: Allow recv DEL CTX REQ in sgsn and DEL CTX RSP in ggsn
- gtp: Log ignore CTX DEL REQ due to no teardown and only 1 ctx active
- gtp: Add new API to avoid freeing pdp contexts during DEL CTX REQ
- fix support for multiple IPCP in PDP protocol configuration options
The Osmocom project has released new version of the CNI (Cellular Network Infrastructure) software, including OsmoBTS, OsmoBSC, OsmoMGW, OsmoMSC, OsmoHLR, OsmoSGSN, OsmoGGSN.
Those new tagged/released versions contain half a year of work since the previous versions released in early November 2017. The primary focus was on bug-fixing and stabilization. Many bugs were introduced during the split of the NITB into individual network elements during 2017, and even more bugs exposed by our ever-growing test coverage, particularly in the Osmocom TTCN-3 test suites.
All-in-all, the post-NITB stack has gained a lot in terms of spec compliance, robustness, stability and features during this period.
You can find pew-compiled binary packages of our latest release for a variety of Debian and Ubuntu GNU/Linux versions at
Latest_Builds.
The developer performing the release related work was Pau Espin. Thanks!
List of tagged versions and link to related ChangeLog¶
Noteworthy Changes¶
Misc¶
- GnuTLS fall-back for obtaining randomness
- support for three-digit MNC throguhout the code-base
- add talloc introspection via VTY
- tighter CRTL input parsing
- stricter VTY config file parsing
- allow to print only basename of source code file in logging
- print log level with color-keying of the level name
- OsmoTRX has now a VTY interface and uses Osmocom-style logging + config file
- use GNU autotest, like other osmocom projects
- re-introduce support for USRP1 devices
- build multiple binaries rather than selecting UHD / USRP1 at compile time
- EFR decoding fixes
- fix dynamic detection/use of CPU optimization (SSE3 vs SSSE3)
- various parsing/encoding fixes for trx-control interface
- add example config file for USRP B200
- higher accuracy reporting of time of arrival
- fix LAPDm UA memory leak
- put useful information into RTCP SDES packets
- fix AMR DTX FSM related crash
- many fixes related to measurement processing + reporting
- more robust RSL message parsing + error reporting
- implement DELETE INDICATION on AGCH overflow
- fix crashes in IPA DLCX processing
- fix operation without System Information Type 1
- support all types of Cell Identifier Lists in BSSMAP PAGING
- fix intra-BSC hand-over (used to work in NITB)
- fix various error paths in hand-over logic
- introduce new "handover 2" algorithm from Andreas Eversberg
- introduce load-based hand-over to balance channel load between overlapping BTSs
- implement SI2ter + SI2bis rest octets
- switch to osmo-mgw for handling media/user plane (instead of old osmo-bsc_mgcp)
- introduce osmo_fsm for subscriber_connection
- reduce several GSM timers to more reasonable default values (T3113, T3109, T3101, ...)
- permit codec list with both TCH/F and TCH/H channels
- permit network supporting more than one A5 cipher
- fix missing L2 pseudo-length in SI5/SI6 messages
- introduce Access Control Class (ACC) ramping to deal with overload situations on network power-up
- switch to "late assignment" by default (we used to do early / very early assignment)
- many fixes related to 3GPP spec / protocol compliance
- fix various use-after-free in GSUP and CC
- fix GSM-MILENAGE in presence of 2G keys
- cancel all paging on IMSI DETACH
- many fixes related to 3GPP spec / protocol compliance
- permit network supporting more than one A5 cipher
- properly pass bearer capabilities between MNCC and CC
- switch to osmo-mgw for handling media/user plane (instead of old osmo-bsc_mgcp)
- use dynamic MGCP endpoint allocation using wildcard
- migrate away from openssl to new libosmocore rand abstraction
- fixes related to SMS validity time
- delete expired SMS automatically
- fix transmission of MM INFO messages
- fix SMS to non-local subscriber
- fix various crashes
- fix response to PURGE_MS
- notify GSUP clients (MSC, SGSN) when HLR subscriber information changes
OsmoMGW (and libosmo-mgcp-client)¶
- Introduce osmo_fsm client API
- various fixes of SDP parser
- significantly improved compliance with MGCP spec
- wildcarded endpoint allocation in CRCX
- integrate libsofia-sip logging with libosmocore logging
- add systemd service file
OsmoSTP (and libosmo-sigtran)¶
- fix various memory leaks
- introduce IPA/SCCPlite support (allows translation of SCCPlite to M3UA/SUA)
- fix some crashes
- migrate away from openssl to new libosmocore rand abstraction
- fix display of GTP addresses in VTY
- re-introduce support for kernel GTP acceleration (was temporarily removed when migrating from OpenGGSN)
- fix byte-order of IPCP IPv4 DNS server addresses
- add support for IPv4v6 End User Addresses
- Validate packet src addr from MS
- various sgsnemu fixes
As Ubuntu 18.04 (Bionic Beaver) has been released two days ago, Osmocom has enabled Binary_Packages builds for this new distribution in both nightly and latest. As a result, you can now use our binary package feeds on this most recent incarnation of Ubuntu just like on the other supported distributions.
This was relatively easy due to the openSUSE Build Service (OBS) immediately adding support for Ubuntu 18.04. so all we had to o is enable it, and fix up some minor failures. Thanks to OBS for making supporting new distributions very easy!
A team of Osmocom volunteers has continued the tradition of operating an experimental test network at the annual Chaos Communication Congress 34C3 held in Leipzig (Germany) from December 27 through December 30, 2017.
You can find some more information about this network at the GSM page in the 34C3 wiki and the report by tsaitgaist as part of the 34C3 infrastructure review (from minute 35 onwards of http://live.dus.c3voc.de/relive//34c3/8911/muxed.mp4)
Osmocom thanks
- Deutsche Telekom for providing us with 3 ARFCN in the 1800 MHz band
- Bundesnetzagentur for providing the experimental license for UMTS in the 850 MHz band
- The team of volunteers working on the setup and operation of the network
The Outreachy project has selected work on Debian packaging for Osmocom for the Dec 2017 to Mar 2018 Outreachy Interns
You can read the related announcement at the outreachy announce mailing list
Kira "kobr" Obrezkova will be working on this, with Debian developer Thorsten Alteholz as mentor.
Congratulations, Kira! Thanks to Thorsten Alteholz for mentoring as well as to Outreachy and its sponsors!
In Osmocom, we have made tremendous progress during 2016 and 2017 in re-structuring our code base, with a proper 3GPP AoIP interface between BSC and MSC, the split-up of OsmoNITB, the externalization of the HLR and full 3G integration. This has had lots of fall-out in terms of packaging, and it's important to have the new post-NITB architecture packaged properly in upstream Debian.
Outreachy provides three-month internships for people from groups traditionally underrepresented in tech. Interns are paid a stipend of $5,500 and have a $500 travel stipend available to them. Interns work remotely with mentors from Free and Open Source Software (FOSS) communities on projects ranging from programming, user experience, documentation, illustration and graphical design, to data science.
