Date: Tue, 28 Jul 2020 09:16:33 +0530 From: Ankur Kothiwal <ankur@freebsd.org> To: soc-status@freebsd.org, rstone@freebsd.org Subject: [GSoC'20 Weekly Update - Week 7] eBPF XDP Hook Message-ID: <CA%2BQRpiE5oQGCvqqrr6oGr1MrvOckpzU%2Bq0MeVYo-zo%2BMnOJUxw@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: - register the xdp hook and link it to the head - create a xdp_rx function which will pass the received packets to the ebpf program where the packets can be further processed. This function will return XDP actions like DROP and PASS. Currently: - write an eBPF program to process ICMP traffic 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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