openbsc.git branch sysmocom/ipa_nano3G updated. 0.15.0-559-g14d527a

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gitosis at osmocom.org gitosis at osmocom.org
Mon Oct 10 23:19:00 UTC 2016


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The branch, sysmocom/ipa_nano3G has been updated
  discards  bfaa4d6e64bdc42baa684ec2586861a93466c4c8 (commit)
       via  14d527a0243e9e268d7505a03e1b6d970b4d4f15 (commit)
       via  20e97facea65eb9b25662a1f43de256940176134 (commit)
       via  c358b5ec1b686efd2702180e52566f873d9e95c1 (commit)

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http://cgit.osmocom.org/openbsc/commit/?id=14d527a0243e9e268d7505a03e1b6d970b4d4f15

commit 14d527a0243e9e268d7505a03e1b6d970b4d4f15
Author: Neels Hofmeyr <nhofmeyr at sysmocom.de>
Date:   Mon Apr 25 15:40:54 2016 +0200

    RAB Assignment: IuPS + IuCS: use shorter 32 bit IP address format
    
    This is needed for the ip.access nano3G femto cell.
    
    Change-Id: I80fe96505c24cf8730e48f24a34004a51e95ee32

http://cgit.osmocom.org/openbsc/commit/?id=20e97facea65eb9b25662a1f43de256940176134

commit 20e97facea65eb9b25662a1f43de256940176134
Author: Neels Hofmeyr <nhofmeyr at sysmocom.de>
Date:   Tue Oct 11 00:50:05 2016 +0200

    IuCS: fix: no paging when conn is already open
    
    The 2G paradigm is to close a subscriber connection as soon as nothing else is
    pending. Hence the code frequently calls msc_release_connection() to see
    whether a conn can be discarded.
    
    In 3G however, we so far don't actively release IuCS connections from the MSC
    side, but wait until the IuCS is released from the UE side. So the IuCS often
    stays open and valid even though msc_release_connection() has already discarded
    the gsm_subscriber_connection for it. Thus, when further events occured, we
    would try to page the subscriber even though the UE expects to already be
    connected, with auth and ciphering established.
    
    To fix, never discard gsm_subscriber_connections when msc_release_connection()
    is called.
    
    An alternative fix would be to actively send an Iu Release when
    msc_release_connection() is invoked, so that auth and ciphering is
    re-established for the next pending event (which might be better, even).
    
    Change-Id: I012378cfa432d791146db387554ec1909de05297

http://cgit.osmocom.org/openbsc/commit/?id=c358b5ec1b686efd2702180e52566f873d9e95c1

commit c358b5ec1b686efd2702180e52566f873d9e95c1
Author: Neels Hofmeyr <nhofmeyr at sysmocom.de>
Date:   Tue Oct 11 01:05:22 2016 +0200

    IuCS: detect whether a conn is already secure
    
    If a CM Service Request is received on an already secure IuCS connection,
    we so far didn't notice and started to authenticate again. The UE would
    readily renew its authentication, but then our state got stuck since
    ciphering was already established. Instead, don't authenticate again when
    integrity protection is already established.
    
    Change-Id: I3c01fe58276ba0ad918f2cd30cc3dca7c6663e68

-----------------------------------------------------------------------

Summary of changes:
 openbsc/src/libmsc/gsm_04_08.c | 4 ++++
 openbsc/src/libmsc/osmo_msc.c  | 4 ++++
 2 files changed, 8 insertions(+)


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