Cedric Roux
76574a1ac0
This reverts commit d31634c358.
Laurent Thomas had a problem on one machine with the build_oai
way of checking for nettle.
The problem with the alternative solution of including nettle/bignum.h
is that it is very unclear.
The problem with nettle is that the file nettle/config.h does not
exist for version 2. It was introduced in version 3.
We want to support both versions, but there is an API incompatibility.
So we need an #if #else mechanism.
The file nettle/bignum.h is present in both versions 2 and 3 and it
includes nettle/version.h in the version 3.
So by including this file, we can check for the existence of
NETTLE_VERSION_MAJOR (that comes from nettle/config.h) in the
code.
But as you can see, the reasoning is way too complex.
So it's better to keep the check in cmake_targets/CMakeLists.txt.
As long as we support version 2 this will be the way to go.
It is possible to force a given version in specific non-generic
customized environments.
OAISIM Security Algorithms v0.1 Dependencies: - nettle >= 2.5 - openssl >= 1.0.1 Compilation: When compiling oaisim, add SECU=1 to enable security features. The makefile will check for required dependencies and disable this feature if not all dependencies are met. OSA is based on 3GPP TS 33.401. Note that only EEA2 and EIA2 algorithms are supported, SNOW-3G is not implemented. Currently the kenb used to derive kRRCint, kRRCenc and kUPenc is composed of the UE_id. In the future this parameter can be either obtained by deriving KASME received from core epc (in the S1AP initial context setup request) or configurable via command line or XML file.