tree f263bc4328886718615139809af9d13ac4b39a1b
parent b997f8444313ff7ab99d66b400fc79cae8302166
author Max <msuraev@sysmocom.de> 1467799158 +0200
committer Harald Welte <laforge@gnumonks.org> 1468711078 +0000

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