A reader of my blog discussed with the article about the BPF with me. He wanted to use the BPF for his own project and had read the HowTo but several problems could not be solved.
During this e-mail discussion I found several flaws in the
article and in the "IMR" demo program (concerning the
use of the BPF_WORDALIGN macro). Hence, I updated
the original
article and IMR.
I hope these new versions will become even more useful as their predecessors.