netdev - Advice on user space application integration with tc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAHV_CwaAF-tDqEpPT1LL04tqTLE14qqqhxZtsB+d-ndKot8_UQ@mail.gmail.com>
Date:   Thu, 11 May 2017 13:45:48 -0700
From:   Morgan Yang <morgan.yang1982@...il.com>
To:     netdev@...r.kernel.org
Subject: Advice on user space application integration with tc

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