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Date:      Wed, 1 Jul 2020 23:11:26 +0530
From:      Ankur Kothiwal <ankur@freebsd.org>
To:        soc-status@freebsd.org, hrs@freebsd.org, rstone@freebsd.org
Subject:   [GSoC'20 Weekly Update - Week 4] eBPF XDP Hook
Message-ID:  <CA%2BQRpiHHrvA=yn3ELpRubOe6VzNqNsCW0jTcG3_jrK_9nbxPPg@mail.gmail.com>

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Hi all,
Project: Implement eBPF XDP for FreeBSD by extending VirtIO ethernet
driver if_vtnet
The goal of this project is to extend an existing FreeBSD network
driver,VirtIO if_vtnet to be able to call into an eBPF program when
processing a newly received packet. The driver will perform the basic
actions of XDP like PASS and DROP the packet as specified by the
program. The project will also implement new map type and other eBPF
helper functions.The aim of this project is to add new probe sites
into the kernel that will call eBPF functions.

Mentor: Ryan Stone <rstone@> and Hiroki Sato <hrs@>

Progress made this week:
The probes were successfully listed but while activating probes we
were getting some errors, so the probes were not getting activated
correctly, which was resulting in kernel panic. This is fixed and now
the probes are successfully activated.

Currently I am on:
- XDP hook - This week's goal is to create a XDP hook using pfil framework.

Project GSoC Wiki: https://wiki.freebsd.org/SummerOfCodeIdeas#eBPF_XDP_Hooks
Github Repo for the code: https://github.com/rysto32/freebsd/tree/ebpf-import

For above related commits refer:
https://github.com/Ankurk99/freebsd/tree/ebpf-import

Thank you for reading. Please feel free to share your feedback and suggestions.

Thanks and Regards
Ankur Kothiwal



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