libosmocore.git branch master updated. 0.9.0-255-ga95ee5e

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gitosis at osmocom.org gitosis at osmocom.org
Wed Oct 12 09:27:08 UTC 2016


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The branch, master has been updated
       via  a95ee5e6e192d274d5d2c03fbe47edbc62c38beb (commit)
      from  ed9d6da5df98538adc70aa03cb569eb9505d04b6 (commit)

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http://cgit.osmocom.org/libosmocore/commit/?id=a95ee5e6e192d274d5d2c03fbe47edbc62c38beb

commit a95ee5e6e192d274d5d2c03fbe47edbc62c38beb
Author: Neels Hofmeyr <nhofmeyr at sysmocom.de>
Date:   Mon Oct 10 22:46:20 2016 +0200

    fix USSD: SS message type mask should be 0x3f, not 0xbf
    
    See 04.80[1], section 3.4: the highest two bits are used as counter or ignored
    and do not contribute to the SS "Miscellaneous message group". Previous mask of
    0xbf included the highest bit, fix to 0x3f.
    
    Observed a value of 0xbb that should mean 0x3b="Register" during testing of 3G
    USSD requests, which seem to be the first to send a nonzero highest bit to our
    code. The erratic mask of 0xbf lead to an unhandled message type of 0xbb.
    
    [1] 3GPP TS 24.080 version 7.2.0 Release 7 / ETSI TS 124 080 V7.2.0 (2006-09)
    
    Change-Id: I299001a9e36c16f55622a0acd5d4a55ca49d0055

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

Summary of changes:
 src/gsm/gsm0480.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


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An utility library for Open Source Mobile Communications



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