openbsc.git branch jerlbeck/wip/gprs-patching updated. 0.13.0-882-g47c7031

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http://cgit.osmocom.org/openbsc/commit/?id=47c7031e8374c7f62fee4302ea4542db337dd805

commit 47c7031e8374c7f62fee4302ea4542db337dd805
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Tue Sep 30 13:53:26 2014 +0200

    sgsn: Added TODOs (TODO)
    
    TODO:
      - fix and remove TODOs
      - add test cases for Detach(reattach)
      - add test cases for PDP context deletion (OW#1311)
      - add test cases for Cancel pending timer in sgsn_mm_ctx_free
      - implement age based MM context expiry
      - remove this commit
    
    Sponsored-by: On-Waves ehf

http://cgit.osmocom.org/openbsc/commit/?id=a6f76044db12fad60f40df8711d5405956c9d121

commit a6f76044db12fad60f40df8711d5405956c9d121
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Fri Oct 17 10:08:02 2014 +0200

    sgsn: Do not die in _bssgp_tx_dl_ud on TLLI mismatch (TODO)
    
    Currently an OSMO_ASSERT fails, if the message's and the mmctx's
    TLLIs do not match.
    
    This commit turns the assertion into an ERROR log message and uses
    the default values for IMSI, DRX, and RA CAP instead of the MM
    context values in this case.
    
    TODO:
      - find the real source for the problem
      - add test cases derived from what is being described in the ticket
    
    Ticket: OW#1322
    Sponsored-by: On-Waves ehf

http://cgit.osmocom.org/openbsc/commit/?id=be80c25828ed77525f4c16c8d4355aa082b549c7

commit be80c25828ed77525f4c16c8d4355aa082b549c7
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Wed Dec 17 14:03:35 2014 +0100

    sgsn: Add PDP info to subscriber data (TODO)
    
    TODO:
      - commit message
      - raw binary representation ???
      - tests
    
    Sponsored-by: On-Waves ehf

http://cgit.osmocom.org/openbsc/commit/?id=de0a00f169dea08e6a9382d8c0b0954ee4d4dfbc

commit de0a00f169dea08e6a9382d8c0b0954ee4d4dfbc
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Fri Dec 19 19:11:20 2014 +0100

    sgsn: Add logging to connect_timer_cb (TODO)
    
    TODO:
      - LOGLevel ?
    
    Sponsored-by: On-Waves ehf

http://cgit.osmocom.org/openbsc/commit/?id=de07f985b57ac534764d9020bac4d2e9550f3cb1

commit de07f985b57ac534764d9020bac4d2e9550f3cb1
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Thu Jan 15 18:51:31 2015 +0100

    sgsn: Fix P-TMSI generator's distance of equal values
    
    Currently sgsn_alloc_ptmsi uses rand() to get a new P-TMSI and then
    sets to upper 2 MSB. Therefore there is no lower limit of the
    distance between 2 identical P-TMSI.
    
    This patch changes the implementation to discard any random value
    above 2^30 and to generate a new random number in that case until a
    fitting number is found (or a repetition limit is reached). This way,
    all number below 2^30 within the PRNG's period are used.
    
    Ticket: OW#1362
    Sponsored-by: On-Waves ehf

http://cgit.osmocom.org/openbsc/commit/?id=bb23b837207f293b8e375f44fe5c24a1172036f5

commit bb23b837207f293b8e375f44fe5c24a1172036f5
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Thu Jan 8 15:29:01 2015 +0100

    gprs: Support the full cancellation procedure
    
    Currently no GSUP LocationCancellationResult message is sent back to
    the peer (HLR), if the procedure succeeded at the SGSN's side.
    
    This patch adds the missing message and put the whole request
    handling of this procedure into a separate function.
    
    Ticket: OW#1338
    Sponsored-by: On-Waves ehf

http://cgit.osmocom.org/openbsc/commit/?id=209b4e36e3e642b0986bbacf3f41c496e4a27a43

commit 209b4e36e3e642b0986bbacf3f41c496e4a27a43
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Thu Jan 15 17:50:16 2015 +0100

    gprs: Don't create a subscr entry on InsertSubscriberData
    
    Currently gprs_subscr_rx_gsup_message creates a subscriber entry if
    such an entry doesn't exist for the IMSI within an
    InsertSubscriberData GSUP message. This behaviour is not compliant to
    GSM 09.02, 20.3.3.2 (Subscriber data management/SGSN) where it is
    defined, that an error ("Unidentified subscriber") shall be returned.
    
    This patch removes the case distinction, so that an existing
    subscriber entry is required for all incoming GSUP messages.
    
    Sponsored-by: On-Waves ehf

http://cgit.osmocom.org/openbsc/commit/?id=4a1139a07134956d1c68472381b6bebc5d29bb93

commit 4a1139a07134956d1c68472381b6bebc5d29bb93
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Thu Jan 15 17:08:30 2015 +0100

    gprs: Add replies for all GSUP requests
    
    Currently, an incoming GSUP request message isn't answered at all if
    it is not handled due to an error or missing implementation.
    
    This patch adds GSUP error replies for these requests (and only for
    requests). It also adds tests for these cases.
    
    Note that several of these tests check for
    GMM_CAUSE_MSGT_NOTEXIST_NOTIMPL, which will have to be changed, when
    the features are implemented.
    
    Sponsored-by: On-Waves ehf

http://cgit.osmocom.org/openbsc/commit/?id=435ac559683d4813c6f4ae9896deae60dc6d7f09

commit 435ac559683d4813c6f4ae9896deae60dc6d7f09
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Thu Jan 8 16:23:25 2015 +0100

    gprs: Block other GSUP procedures during PURGE_MS
    
    GSM 09.02, 19.4.1.4 mandates that no other MAP procedures shall be
    started until the PURGE_MS procedure has been completed.
    
    This patch implements this by adding corresponding state and checks
    to gprs_subscr_purge, gprs_subscr_location_update, and
    gprs_subscr_update_auth_info. If an Update Location or a Send Auth
    Info Req procedure is not started because of blocking, the retry
    mechanism is aborted to shorten the blocking time. The outstanding
    Purge MS procedure itself is not aborted.
    
    Sponsored-by: On-Waves ehf

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

Summary of changes:
 openbsc/include/openbsc/gprs_sgsn.h |  4 ++
 openbsc/src/gprs/gprs_subscriber.c  | 54 ++++++++++++----------
 openbsc/tests/sgsn/sgsn_test.c      | 92 +++++++++++++++++++++++++++++++++++++
 openbsc/tests/sgsn/sgsn_test.ok     |  1 +
 4 files changed, 126 insertions(+), 25 deletions(-)


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