not sure how far along you are with SELinux intergration, so just to make sure you are on the same page...
In order for the policy to be useful you need SELinux kernel module and userspace tools.
It seems that Yocto already has SELinux layer (https://git.yoctoproject.org/cgit/cgit.cgi/meta-selinux/) providing all the necessary parts including policy (based on refpolicy https://github.com/SELinuxProject/refpolicy). I believe using this policy would be your best bet since you wouldn't be the first one trying to use it in a custom BSP.

As for your questions below:
selinux-policy-contrib hosts policy modules for specific services. They need the base policy (https://github.com/fedora-selinux/selinux-policy) to work. They are designed to work together, but you can choose which ones will be active in your system. As said, I believe you should start with refpolicy, but if you still want to use Fedora SELinux policy please let me know and I'll try to elaborate on the necessary steps.

If you want to learn more about SELinux, I recommend https://freecomputerbooks.com/books/The_SELinux_Notebook-4th_Edition.pdf (but you are still welcome to ask questions here)

Have a great day,

On 10/13/20 7:58 AM, Ashish Mishra wrote:
Hi All , 

Good Morning .

I was trying to get FEDORA SELINUX policy on our custom BSP 
Can the team please let me know their feedback / comments / inputs  on the same .

Below is the description of what i am trying to do :
1) We are having a custom BSP ( Yocto / Buildroot ) for one of our products. 
    This BSP doesn't have SELINUX on it as of now.

2) I can find the policy ".te" file at https://github.com/fedora-selinux/selinux-policy-contrib ( approx 1005 files )
    But unable to understand the process of adding these policies to my custom BSP.
    Is there any way we can add these Fedora SELINUX policies to our BSP ?

3) Is there any standard way of bifurcating these ".te" files or 
    one has to make use of all of these as a standard practice.

Please feel free to seek any details or clarification from my side . 
Also , do let me know if I am missing any aspect here or mis-understood something  completely . 

Thanks ,
Ashish Kumar Mishra 

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