Hi All:
I want to build a solution that leverages the filtering and actions of tc in kernel space, but have the ability to hook to a userspace application that can additional packet processing (such as payload masking). I'm curious what are the best ways to go about doing that? I have been looking into tc-skbmod and tc-pedit, but as good as they are, they would require newer kernels. I have also tried using tc to mirror filterd packets to a dummy or tap interface, and have the userspace application pick up there, but the performance has been supar. I'm hoping to have a solution that avoids the extra mirroring. Much Thanks Morgan Yang