tree 714824807233bc013977d51adf5b266e72c616be
parent 86a8031e9cf0b8660d4c34079d0aec1505b4823f
author Harald Welte <laforge@gnumonks.org> 1514046618 +0100
committer Philipp Maier <pmaier@sysmocom.de> 1519036987 +0100

Permit set of multiple different A5 ciphers

So far, the administrator had to pick one particular cipher which
would then be used throughout all subscribers/phones. This is a bit
impractical, as e.g. not all phones support A5/3.  Extend the VTY
command syntax in a backwards-compatible way to permit for multiple
ciphers.

The bit-mask of permitted ciphers from the MSC (sent in ASSIGNMENT
COMMAND) is intersected with the vty-configured mask a the BSC.
Finally, the best (highest) possible cipher is chosen.

Change-Id: I1d1c8131855bcab2392b4f27f6216bdb2fae10e0
Closes: OS#2461