How to make samba only allowing certain file extension to put on for example i will only allow .doc, .pdf, .exe and it will block everything else.

I know we can use veto files, but veto files work with blacklisting certain file extenstion i found it not effective lets say we only allow 5 file extension but will block every other files extension, then i have to write a long list of other file extension.

So, I want to know if there is any whitelisting command so it will only allow certain file extension but will block everything else.

I would rename all my files using allowed extensions, like this:
blocked_picture.doc
and now I can use that samba share. So I do not really understand what do you want to achieve by this.

From the other hand it looks like there is no simple way, you need to implement your own filter to do that (if possible at all).