openbsc.git branch jerlbeck/wip/gprs-patching updated. 0.13.0-816-g9fb4588

gitosis at osmocom.org gitosis at osmocom.org
Mon Dec 22 17:08:33 UTC 2014


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http://cgit.osmocom.org/openbsc/commit/?id=9fb4588727df8284b71ebc14946f024daefb1652

commit 9fb4588727df8284b71ebc14946f024daefb1652
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date:   Mon Dec 22 17:58:18 2014 +0100

    sgsn: Be more tolerant with state and SUSPEND/RESUME
    
    Currently, when a BSSGP SUSPEND is received and the corresponding MM
    context is already in the state GMM_REGISTERED_SUSPENDED, a
    SUSPEND_NACK is returned which is not covered by GSM 08.18, 7.4.1.
    The same goes for RESUME in the state GMM_REGISTERED_NORMAL.
    
    This commit changes gprs_gmm_rx_suspend and gprs_gmm_rx_resume to not
    complain (and thus answer a NACK) when the MM context is either in
    GMM_REGISTERED_SUSPENDED or GMM_REGISTERED_NORMAL.
    
    Note that GSM 08.18, 7.4.1 and 7.5.1 only mention to send an NACK if
    the MS is not known. Even with this patch, the SGSN returns a NACK if
    either the MS is unknown _or_ the MM context ist not in one of the
    state GMM_REGISTERED_SUSPENDED and GMM_REGISTERED_NORMAL.
    
    Sponsored-by: On-Waves ehf

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

Summary of changes:
 openbsc/src/gprs/gprs_gmm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)


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