This reverts commit d31634c3.

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.

Those functions modify a global char array (a string).

Let's pass a buffer to those functions, so that it's
thread safe. The caller has been modified, with hopefully
a buffer big enough (still bigger than what was there before,
so should not break more than it did).

- fix OPc key
- clear EHPLMN_LIST, UE does not start the RA procedure when set
  to be fixed

Guess what happens when we return from the function...

The case instance == INSTANCE_DEFAULT should normally not happen,
but let's be a bit verbose if it does.

oaisim is not functional with several UEs.
This fixes one issue. (It's still not functional for other reasons.)

It was not setting emm_data->eplmn.plmn[X], only emm_data->eplmn.n_plmns,
leading to the UE to dig for PLMN 00000.

(It's not the end of the story, seems like the PLMN selection
does not work, the UE only tries one from what I've seen, but
I didn't dig much, may be wrong.)

Adapt calling sites too.

When data comes from the user, it is good to check that
what we read is correct and warn the user if it's not.

Also included some source files not related to this branch.

	modified:   openair1/PHY/LTE_ESTIMATION/lte_dl_bf_channel_estimation.c
	modified:   openair1/PHY/LTE_TRANSPORT/pilots_ue_spec.c
	modified:   openair1/PHY/MODULATION/beamforming.c
	modified:   openair1/PHY/TOOLS/twiddle18432.h
	modified:   openair1/SIMULATION/LTE_PHY/dlsim_tm7.c
	modified:   openair3/NAS/TOOLS/nvram.c
	modified:   openair3/NAS/TOOLS/usim.c
	modified:   openair3/NAS/UE/user_defs.h

That's not the end of the story though.

I am not sure if it's the right way to solve the
problem, so I keep the definitions here and
put them inside #if 0 #endif

Imad ALAWE authored 8 years ago and FredericLeroy committed 8 years ago

In openairinterface5g many definitions in many layers of UE or eNB NB_MAX.
We created a file called openairinterface5g_limits.h
located at openairinterface5g_dir/targets/COMMON/ declaring the number max
of UE and eNB to be used in ALL layers depending on launching conditions
(LARGE_SCALE for example).

This remove the old static lists

There was a side effect corrupting data because hplmn_index was not computed.