openbsc.git branch neels/iu updated. 0.15.0-745-g5859963b3

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Thu Mar 16 15:18:48 UTC 2017

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- Log -----------------------------------------------------------------

commit 5859963b3483f7bd584c659668e3e8046d676b23
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Thu Mar 9 16:51:58 2017 +0100

    vlr: allow setting assign_tmsi per-subscriber
    Change-Id: I7469da0ed19e1e8b292422aadfd3ae2ebc2afd57

commit 83b33695d9628fb322c4d58a3e8ed48fc7c3a418
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Mon May 30 15:09:47 2016 +0200

    temporary dev: set debug log level almost everywhere
    Change-Id: I0d5a36560e7edde27497de57e579f5b1d00eb525

commit 72623354fb7eb13d1508e6447e90f70d9febf606
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Fri Mar 10 02:15:20 2017 +0100

    log protocol discriminators and message types by name
    Depends: libosmocore change-id I0fca8e95ed5c2148b1a7440eff3fc9c7583898df
    Change-Id: If1c49faf6e1757cb16b383dd2db87b48bc94eee6

commit b428e7692a98a48de90a370597fa2ce135eda83b
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Thu Mar 16 16:14:34 2017 +0100

    mgcp: hack RAB success from nano3G: patch first RTP payload
    The ip.access nano3G needs the first RTP payload's first two bytes to read hex
    'e400', or it will reject the RAB assignment. Add flag
    patched_first_rtp_payload to mgcp_rtp_state to detect the first RTP payload on
    a stream, and overwrite its first bytes with e400. This should probably be
    configurable, but seems to not harm other femto cells (as long as we patch only
    the first RTP payload in each stream). Only do this when sending to the BTS
    Change-Id: I31a4475f42d59fd5704d52ee6e473e270db6d779

commit 93245796fb988bebf30d63820df7e35fa3de99f0
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Fri May 20 21:59:55 2016 +0200

    Implement IuCS (large refactoring and addition)
    osmo-nitb becomes osmo-msc
    add DIUCS debug log constant
    add iucs.[hc]
    add msc vty, remove nitb vty
    add libiudummy, to avoid linking Iu deps in tests
    Use new msc_tx_dtap() instead of gsm0808_submit_dtap()
    libmgcp: add mgcpgw client API
    bridge calls via mgcpgw
    mgcp: hack RAB success from nano3G: patch first RTP payload
    The ip.access nano3G needs the first RTP payload's first two bytes to read hex
    'e400', or it will reject the RAB assignment. Add flag
    patched_first_rtp_payload to mgcp_rtp_state to detect the first RTP payload on
    a stream, and overwrite its first bytes with e400. This should probably be
    configurable, but seems to not harm other femto cells (as long as we patch only
    the first RTP payload in each stream). Only do this when sending to the BTS

commit 37f094866cc553798319d23565b34e1ccded74b9
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Mon May 30 15:21:52 2016 +0200

    remove handle_abisip_signal()
    Change-Id: I9cf80f9c2c8a53a29e42f000029e680a9922cb41

commit 454e07228d7ba7e28d96907bde6ae9739ca7e1c8
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Wed May 11 17:13:28 2016 +0200

    remove unneccessary linking from some tests
    The recent shifts and cuts have made some library linking for bsc, channel and
    db tests unnecessary.

commit 87d7ffe92115c5a1a1ac6442508cac09ab70f73d
Author: Harald Welte <laforge at>
Date:   Thu Dec 24 17:06:42 2015 +0100

    mscsplit: various preparations to separate MSC from BSC
    Disable large parts of the code that depend on BSC presence.
    Don't set msg->lchan nor msg->dst.
    Don't use lchan in libmsc.
    Decouple lac from bts.
    Prepare entry/exit point for MSC -> BSC and MSC -> RNC communication:
    Add msc_ifaces.[hc], a_iface.c, with a general msc_tx_dtap() to redirect to
    different interfaces depending on the actual subscriber connection.
    While iu_tx() is going to be functional fairly soon, the a_tx() is going to be
    just a dummy for some time (see comment).
    Add Iu specific fields in gsm_subscriber_connection: the UE connection pointer
    and an indicator for the Integrity Protection status on Iu (to be fully
    implemented in later commits).
    Add lac member to gsm_subscriber_connection, to allow decoupling from
    bts->location_area_code. The conn->lac will actually be set in iu.c in an
    upcoming commit ("add iucs.[hc]").
    move to libcommon-cs: gsm48_extract_mi(), gsm48_paging_extract_mi().
    libmsc: duplicate gsm0808 / gsm48 functions (towards BSC).
    In osmo-nitb, libmsc would directly call the functions on the BSC level, not
    always via the bsc_api. When separating libmsc from libbsc, some functions are
    missing from the linkage.
    Hence duplicate these functions to libmsc, add an msc_ prefix for clarity, also
    add a _tx to gsm0808_cipher_mode():
    * add msc_gsm0808_tx_cipher_mode() (dummy/stub)
    * add msc_gsm48_tx_mm_serv_ack()
    * add msc_gsm48_tx_mm_serv_rej()
    Call these from libmsc instead of
    * gsm0808_cipher_mode()
    * gsm48_tx_mm_serv_ack()
    * gsm48_tx_mm_serv_rej()
    Also add a comment related to msc_gsm0808_tx_cipher_mode() in two places.
    Temporarily disable all paging to be able to link libmsc without libbsc.
    Skip the paging part of channel_test because the paging is now disabled.
    In osmo-nitb, paging is done on BSC level and MSC level "at the same time".
    When the new MSC is fully operational, paging will be controlled separately on
    the MSC level, and the BSC (RNC) level will be instructed over an IuCS or
    A-interface to negotiate paging with the MS (UE). This MSC level paging does
    not yet exist and will be added in subsequent commits.
    msc_compl_l3(): publish in .h, tweak return value.  Use new libmsc enum values
    for return val, to avoid dependency on libbsc headers.  Make callable from
    other scopes: publish in osmo_msc.h and remove 'static' in osmo_msc.c
    add gsm_encr to subscr_conn
    move subscr_request to gsm_subscriber.h
    subscr_request_channel() -> subscr_request_conn()
    move to libmsc: osmo_stats_vty_add_cmds()
    gsm_04_08: remove apply_codec_restrictions()
    gsm0408_test: use NULL for root ctx
    move to libbsc: gsm_bts_neighbor()
    move to libbsc: lchan_next_meas_rep()
    move vty config for t3212 to network level (periodic lu)

commit 40c6b177748193003a26e387488a705eb0adc5b6
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Mon May 9 13:18:03 2016 +0200

    LU counters: count completion and failure, not messages sent
    From a human admin viewpoint it doesn't make sense to count the messages sent:
    When we use TMSIs, we first send a LU Accept with a new TMSI, and then expect
    the MS to respond with a TMSI Realloc Complete message. When that fails to come
    through, the LU actually ends in failure, even though a LU Accept was sent.
    In 3G, if a UE sends an Iu Release during LU (e.g. user enables flight mode),
    we cancel the LU without sending any reply at all, so nothing would be counted.
    Instead, count Location Updating results, i.e. completion and failures.

commit a81fbf00918e742d9a4f5ac47eca875918043c2f
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Wed Oct 12 02:53:55 2016 +0200

    IuPS: cosmetic: explicitly check RAN type; move comment
    Change-Id: I8375ba42dd47d7ccd9ce9290767d6f8653a23b94

commit 7a4632c67cd6abe114d4c4094272b7493cd3c57a
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Wed Oct 12 03:30:48 2016 +0200

    sgsn init: pass sgsn_config pointer to sgsn_vty_init(), not sgsn_parse_config
    It makes sense semantically, and prepares for an upcoming commit that uses
    the internal global config pointer in sgsn_vty_init(), which would not
    be defined yet without this.
    Change-Id: Ie4cf1c0a1c9e6330a134ff4b7b2e6d5699c12bd7

commit 1802ff99cfa9c085793448cbcf0f760d284cb2a9
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Thu Sep 22 20:00:16 2016 +0200

    sgsn_ranap_iu_event: handle some events without valid MM context
    Change-Id: Ia7e74087d56996104b6d3935b1cf12166ff67f3a

commit ec6465a0733f2f895d8ae4ca7e5c326d4ac7ea19
Author: Harald Welte <laforge at>
Date:   Mon May 2 08:34:57 2016 +0200

    SGSN: Don't indicate GERAN in Iu mode PDP CTX ACT REQ to GGSN

commit 1ca587aab009da261f99b65e37ccd217a6b94a58
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Sat Mar 4 03:34:50 2017 +0100

    vlr: fix: don't send CM Service Accept after Ciphering Command
    Ciphering Mode Command is an implicit CM Service Accept, if we're sending
    both we're confusing the MS.
    Change-Id: I3a04debe9b01c086e7f44b6139cb8796fcc71d38

commit 6da3bc7c0afd0352fb46b271b9e6a01aaa3c5cfe
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Sat Mar 4 21:09:12 2017 +0100

    fix: vlr: clear last_tuple when receiving auth tuples
    When receiving more than one auth tuple during AUTS resync, the VLR would go on
    to send the second tuple instead of the first. The unit test didn't catch that
    because its fake HLR message contained only one tuple.
    Adjust the test to send two tuples to catch this error.
    Fix the code to clear vlr_subscr->last_tuple whenever new auth tuples are
    Change-Id: I1f84e7d2619aa8d9a0dcdfb50745feeb040264b9

commit 9267123b882d1e35a4cb6a3bf746d33c4e84c8ce
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Sat Mar 4 03:15:53 2017 +0100

    gsup_client: allow passing a unit id to identify with HLR
    Before, each GSUP client would contact the HLR with an identical unit id, i.e.
    "SGSN-00-00-00-00-00-00", with the result that some messages were sucked off by
    the wrong client.
    Pass explicit unit name from each gsup client user, so that OsmoMSC is "MSC"
    and OsmoSGSN is "SGSN". Hence the HLR can properly route the messages.
    Todo: also set some values instead of the zeros.
    Change-Id: I3f8d6dd47c7013920e2a4bde006ed77afd974e80

commit 615ce2437f1bfe66278101903e86d2f367b3174a
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Wed Feb 22 02:27:59 2017 +0100

    SI3: indicate R99+ MSC to GSM MS to enable UMTS AKA
    Change-Id: Iaf11218327f139e8cabfbc5f9916505c66eadbd8

commit ac5f9276c443c01f0cf1f4dc6d04ba1d2b09d422
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Wed Feb 15 00:20:44 2017 +0100

    vlr: get SMS working, by SMS recipient MSISDN round-robin
    The SQL based lookup of SMS for attached subscribers no longer works since the
    SQL database no longer has the subscriber data. Replace with a round-robin on
    the SMS recipient MSISDNs paired with a VLR subscriber RAM lookup whether the
    subscriber is currently attached.
    If there are many SMS for not-attached subscribers in the SMS database, this
    will become inefficient: a DB hit returns a pending SMS, the RAM lookup will
    reveal that the subscriber is not attached, after which the DB is hit for the
    next SMS. It would become more efficient e.g. by having an MSISDN based hash
    list for the VLR subscribers and by marking non-attached SMS recipients in the
    SMS database so that they can be excluded with the SQL query already.
    There is a sanity limit to do at most 100 db hits per attempt to find a pending
    SMS. So if there are more than 100 stored SMS waiting for their recipients to
    actually attach to the MSC, it may take more than one SMS queue trigger to
    deliver SMS for subscribers that are actually attached.
    This is not very beautiful, but is merely intended to carry us over to a time
    when we have a proper separate SMSC entity.
    Change-Id: I1acf9debb6ba9164e6edcfd5bc5e48e8c98f2b01

commit d36144d6c98bfcf4db106a4596f4238524ec3eab
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Sun Feb 12 00:34:35 2017 +0100

    msc_vlr tests: add tests to reject concurrenct conns
    Change-Id: I5c04b1cf0ad302c35968e0f8dfb122997f3f7bf1

commit f71b1168b6f3e1887e0d156821b144164ca9fd96
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Wed Jan 25 15:04:16 2017 +0100

    Add msc_vlr test suite for MSC+VLR end-to-end tests
    Change-Id: Ic073f3a069a7f5e7e421e0e56140f069ee9b10b8

commit d20e7483d0872270a38d83efe1b7a14e87fe37de
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Fri Feb 3 02:42:47 2017 +0100

    Use libvlr in libmsc (large refactoring)
    Original libvlr code is by Harald Welte <laforge at>,
    polished and tweaked by Neels Hofmeyr <nhofmeyr at>.
    This is a long series of development collapsed in one patch. The original
    history may still be available as branch neels/vlr_orig.
    TODO: This commit may be split in several smaller changes before merging to
    Related: OS#1592
    Change-Id: I702ba504ce2de93507312c28eca8d11f09f4ee8b

commit 067991aeb2b404f120678bd618ebd15614de3446
Author: Harald Welte <laforge at>
Date:   Fri Jun 17 00:06:42 2016 +0200

    Add libvlr implementation
    Original libvlr code is by Harald Welte <laforge at>,
    polished and tweaked by Neels Hofmeyr <nhofmeyr at>.
    This is a long series of development collapsed in one patch. The original
    history may still be available as branch neels/vlr_orig.
    Related: OS#1592
    Change-Id: I3f75de5f0cc2ff77f276fd39832dd3621309c4b9

commit e005619dc6cbfcbd260cab6b2535d10eb0e75c6d
Author: Harald Welte <laforge at>
Date:   Sun Jun 19 18:06:02 2016 +0200

    Introduce subscriber_connection ref-counting
    This introduces a reference count for gsm_subscriber_connection. Every
    user of the connection needs to hold a reference until done.  Once the
    reference count dorps to zero, the connection is cleared towards the
    BSC (which subsequently will clear any logical channels associated with
    Related: OS#1592
    Change-Id: I8c05e6c81f246ff8b5bf91312f80410b1a85f15e

commit 7564acac242e6112b70b493b314a74baaca1f6e8
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Tue Feb 14 17:42:25 2017 +0100

    logging: auth request: use hexdump without spaces for RAND, AUTN
    Change-Id: I656d8619a1adc93e2f627f4e1ba21512a7374279


Summary of changes:
 openbsc/src/libbsc/abis_om2000.c   | 46 ++++++++++++++++++++------------------
 openbsc/src/libcommon/oap_client.c |  2 +-
 2 files changed, 25 insertions(+), 23 deletions(-)

The OpenBSC GSM Base Station Controller (+MSC/HLR/SGSN)

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