Date: Wed, 12 Aug 2020 00:48:34 +0530 From: Ankur Kothiwal <ankur@freebsd.org> To: soc-status@freebsd.org, rstone@freebsd.org Subject: [GSoC'20 Weekly Update - Week 8 and 9] eBPF XDP Hook Message-ID: <CA%2BQRpiHNP5eBDYNHnqpk2_9NFnLx0%2BbNDLVyW1oZ2kspR98QEQ@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 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 : - write an eBPF program to process (currently drop and pass) ICMP traffic - write a loader function to load the ICMP filter program to the kernel - add XDP prog write an eBPF program to process ICMP traffictype to eBPF infrastructure Currently: - The ICMP filter loads successfully but it's not filtering packets as desired due to some complications in XDP implementation. So this week the goal will be to fix this and get the filter work as desired. Project GSoC Wiki: https://wiki.freebsd.org/SummerOfCodeIdeas#eBPF_XDP_Hooks Github repo including the changes : https://github.com/Ankurk99/freebsd/tree/ebpf-import Github Repo for the original code: https://github.com/rysto32/freebsd/tree/ebpf-import Thank you for reading. Please feel free to share feedback. Thanks and Regards Ankur Kothiwal
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