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http://cgit.osmocom.org/openbsc/commit/?id=82040101ebcc6350f53a9e0853418a9b…
commit 82040101ebcc6350f53a9e0853418a9bc597963a
Author: Max <msuraev(a)sysmocom.de>
Date: Wed Jul 6 11:59:18 2016 +0200
SGSN: encrypt/decrypt only necessary frames
According to 3GPP TS 24.008 § 4.7.1.2 some GMM frames are not supposed
to be ciphered. Propagate information about the necessity for
encryption between MM <-> LLC to ensure only proper frames are
encrypted/decrypted/dropped.
Change-Id: I0358905e60d1b182f75caec81bfcc72bbbbb2aa1
Related: OS#1582
-----------------------------------------------------------------------
Summary of changes:
openbsc/include/openbsc/gprs_gmm.h | 5 +++-
openbsc/include/openbsc/gprs_llc.h | 3 ++-
openbsc/src/gprs/gprs_gmm.c | 48 ++++++++++++++++++++++----------------
openbsc/src/gprs/gprs_llc.c | 22 ++++++++++-------
openbsc/src/gprs/gprs_sndcp.c | 5 ++--
openbsc/tests/sgsn/sgsn_test.c | 2 +-
6 files changed, 51 insertions(+), 34 deletions(-)
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The OpenBSC GSM Base Station Controller (+MSC/HLR/SGSN)