Migration towards new ASN compiler

[panyogesh]

Problem

The current compiler used in Magma has several shortcomings and is occasionally unable to generate code capable of parsing messages sent by gNB #14125 and #12846. Additionally, there are several other messages that failed to parse due to the compiler.

Solution

In order to address the existing limitations and to overcome future obstacles, we are proposing a transition to a new compiler that includes pre-generated files for both 4G (S1-MME) and 5G (NGAP).

Non-goals

Move towards new compiler

Proposal link

[panyogesh]

Current 1.9 release will be using the existing compiler.

[lucasgonze]

I agree that we need to migrate away from the old compiler, which isn't well maintained.

@jorgevargasmor Feel like a taking a look at the security of Mouse07410?

[panyogesh]

@lucasgonze @jorgevargasmor: We have checked Mouse07410. As such there is no security specific framework that's present.
Few advantage we can see is :

• Actively Maintained
• Supported by other open sources
• Support till release 17.

I guess we need to conclude on how to proceed.

[lucasgonze]

Problem: there are a number of unfixed issues in the proposed new compiler. These are severe enough to matter. The question is whether these are any worse than known issues in the old compiler. We need to find the issue queue for it.

Update: the community around the new compiler is actively working on a fix.

[lucasgonze]

Updates:

1. OAI has also switched to the mouse compiler
2. The mouse community has pushed a fix to their buffer overflow

[rdefosse]

Updates:

1. OAI has also switched to the mouse compiler

2. The mouse community has pushed a fix to their buffer overflow

Confirmed.

And we also considered the Nokia version.

[rdefosse]

I agree to the move.

[lucasgonze]

I agree to the move.