openbsc.git branch lynxis/rbs2000 updated. 0.15.0-573-gb0a32e5

gitosis at osmocom.org gitosis at osmocom.org
Fri Dec 16 15:12:34 UTC 2016


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The branch, lynxis/rbs2000 has been updated
       via  b0a32e58d11f7dd79272a178eef838980b980d41 (commit)
      from  74cf9351db7997996b9b0b0886796c3aead712cd (commit)

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http://cgit.osmocom.org/openbsc/commit/?id=b0a32e58d11f7dd79272a178eef838980b980d41

commit b0a32e58d11f7dd79272a178eef838980b980d41
Author: Philipp <pmaier at sysmocom.de>
Date:   Fri Dec 16 16:03:28 2016 +0100

    sndcp: Allow empty SNDCP-XID indications
    
    In some rare cases the modem might send a xid indication that does
    not contain anything except the version number field. The sgsn
    ignors such SNDCP-XID indications by stripping the entire field
    from the response. We found a modem in the wild that started to
    act problematic when the empty SNDCP-XID was missing in the
    response. This patch changes the XID negotiation behaviour in
    a way that if a modem should send empty SNDCP-XID indications,
    the reply will also contain an empty SNDCP-XID indication. Apart
    from that the SNDCP-XID version number is now parsed and echoed
    in the response. This ensures that we always reply with the version
    number that the modem expects. (The version was 0 in all cases we
    observed so far)

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

Summary of changes:
 openbsc/include/openbsc/gprs_sndcp_xid.h | 14 +++++----
 openbsc/src/gprs/gprs_llc.c              | 14 ++++-----
 openbsc/src/gprs/gprs_sndcp.c            | 25 +++++++--------
 openbsc/src/gprs/gprs_sndcp_xid.c        | 54 +++++++++++++++++++++-----------
 openbsc/tests/sndcp_xid/sndcp_xid_test.c | 10 +++---
 5 files changed, 68 insertions(+), 49 deletions(-)


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