openbsc.git branch neels/vlr updated. 0.15.0-688-g91ff08fbb

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

commit 91ff08fbbdcc35a2b2e864bc17caa9c0efaa4973
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 7a207af53f94f9d47b55273fb782a4fc514b8443
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

commit 578a13718461f8b22da53071a8f5b53495647c95
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Sun Feb 12 00:34:35 2017 +0100

    reject concurrency test
    Change-Id: I5c04b1cf0ad302c35968e0f8dfb122997f3f7bf1

commit c7c8f6889d02f0868bf2d57bcdf427b513d8e013
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 44dd71339171ddab86fa42d9668bc7f5e65f1830
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 11c49cf7096c2e969527d62cf0420069ab15cb67
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 98f69177268d142d30b7f068f6fad1c19f135168
Author: Harald Welte <laforge at>
Date:   Fri May 6 13:49:49 2016 +0200

    WIP: Handle Authentication Failure from MS
    Change-Id: I71f51eff089cf05f32a6ef408c4606880fc2e4a5
    Related: OS#1592

commit 3cb29a7bc307d4d7fd8e5742494523784adee10d
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Thu Feb 2 01:07:28 2017 +0100

    subscriber conn: add indicator for originating interface
    Add via_iface to gsm_subscriber_connection to indicate whether a conn is coming
    in via 2G (IFACE_A) or 3G (IFACE_IU). Prepares for Iu support, but also for
    libvlr to decide between GSM or R99 (UMTS) Authentication.
    Until actual Iu support is merged to master, this indicator will aid VLR unit
    Change-Id: I93b870522f725170e4265a5543f6b680383d7465

commit abd414de9da7a701fd705ddde9459713fe4f4b04
Author: Harald Welte <laforge at>
Date:   Thu May 5 22:52:41 2016 +0200

    SGSN: Integrate basic support for UMTS AKA
    We already had almost all the parts in place before:
    * GSUP with capability to send us auth_vectors that contain
      either triplets or quintuples
    * mm_context that holds such auth_vectors
    All that we need to add in this patch is the capability to send
    the AUTN parameter in the GMM AUTH REQ and parse the extended RES
    in the GMM AUTH RESP.
    TODO: Implement SQN re-synchronoization mechanism (Auth Fail: Sync Err)
    Related: OS#1592
    Tweaked-by: nhofmeyr
    Change-Id: Ie6a0cefba5e4e7f02cc2eaf6ec006ac07d5c1816

commit 3912c8fff0445fdc22712cfb5e68092f60ae78f3
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 eadef96f88f38ee437085ec7a9572e7ed6fab0a1
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Thu Jan 26 02:05:29 2017 +0100

    log: disable imsi filter
    gsm_subscriber will soon be split in separate BSC, GPRS and VLR structs, and
    making the IMSI filter work with these changes is currently not worth the
    effort. The IMSI filter doesn't work well and new libvlr will allow specific
    subscribers' FSMs to be put in debug mode. We may want to re-add something
    similar later on, but for now just drop it.
    Change-Id: Ifecc3c55ae7c050ee53553d6f85d9afbede66ee3

commit c57255a84f0d7922f11ad55655a61d62fabb67e1
Author: Neels Hofmeyr <nhofmeyr at>
Date:   Mon Jan 9 22:02:21 2017 +0100

    add struct bsc_sub, separating libbsc from gsm_subscriber
    Prepare for replacing gsm_subscriber with vlr_subscriber. vlr_subscriber will
    no longer make sense to be used in libbsc, so have a dedicated BSC subscriber
    Related: #1592, #1594
    Change-Id: Ia61cc00e8bb186b976939a4fc8f7cf9ce6aa3d8e


Summary of changes:

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

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