eBPF Summit 2024

Miundombinu

  • Linux Kernel

    eBPF Runtime

    The Linux kernel contains the eBPF runtime required to run eBPF programs. It implements the bpf(2) system call for interacting with programs, maps, BTF and various attachment points where eBPF programs can be executed from. The kernel contains a eBPF verifier in order to check programs for safety and a JIT compiler to translate programs to native machine code. User space tooling such as bpftool and libbpf are also maintained as part of the upstream kernel.

  • LLVM Compiler

    eBPF Backend

    The LLVM compiler infrastructure contains the eBPF backend required to translate programs written in a C-like syntax to eBPF instructions. LLVM generates eBPF ELF files which contain program code, map descriptions, relocation information and BTF meta data. These ELF files contain all necessary information for eBPF loaders such as libbpf to prepare and load programs into the Linux kernel. The LLVM project also contains additional developer tools such as an eBPF object file disassembler.

  • GCC Compiler

    eBPF Backend

    The GCC compiler comes with an eBPF backend starting from GCC 10. Up to that point, LLVM has been the only compiler which supports generating eBPF ELF files. The GCC port is roughly equivalent to the LLVM eBPF support. There are some missing bits of functionality but the GCC community is working to close these gaps over time. GCC also contains eBPF binutils as well as eBPF gdb support for debugging of eBPF code that is traditionally consumed by the Linux kernel. Included as part of this is an eBPF simulator for gdb.

  • bpftool

    Command-line tool to inspect and manage eBPF objects

    Powered by libbpf, bpftool is the reference utility to quickly inspect and manage BPF objects on a Linux system. Use it to list, dump, or load eBPF programs and maps, to generate skeletons for eBPF applications, to statically link eBPF programs from different object files, or to perform various other eBPF-related tasks.

  • C++

    • libbpf

      libbpf is a C/C++ based library which is maintained as part of the upstream Linux kernel. It contains an eBPF loader which takes over processing LLVM generated eBPF ELF files for loading into the kernel. libbpf received a major boost in capabilities and sophistication and closed many existing gaps with BCC as a library. It also supports important features not available in BCC such as global variables and BPF skeletons.

  • Golang

    • eBPF

      eBPF is designed as a pure Go library that provides utilities for loading, compiling, and debugging eBPF programs. It has minimal external dependencies and is intended to be used in long running processes.

    • libbpfgo

      libbpfgo is a Go wrapper around libbpf. It supports BPF CO-RE and its goal is to be a complete implementation of libbpf APIs. It uses CGo to call into linked versions of libbpf.

  • Rust

    • aya

      aya is an eBPF library built with a focus on operability and developer experience. It allows for both eBPF programs and their userspace programs to be written in Rust.

    • libbpf-rs is a safe, idiomatic, and opinionated wrapper API around libbpf written in Rust. libbpf-rs, together with libbpf-cargo (libbpf cargo plugin) allows to write 'compile once run everywhere' (CO-RE) eBPF programs.

  • Utilities for use with XDP

    libxdp is an XDP-specific library that sits on top of libbpf and implements a couple of XDP features: it supports loading of multiple programs to run in sequence on the same interface, and it contains helper functions for configuring AF_XDP sockets as well as reading and writing packets from these sockets.

  • PcapPlusPlus

    C++ library for capturing, parsing and crafting network packets

    PcapPlusPlus is a multi-platform C++ library for capturing, parsing and crafting network packets. It is designed to be efficient, powerful and easy to use. PcapPlusPlus enables capturing and sending network packets through a variaty of packet processing engines, one of them is eBPF AF_XDP sockets. It features an easy-to-use C++ interface for creating AF_XDP sockets, making it easy to send and receive packets through them.

  • Je, miradi hii iko chini ya Msingi wa eBPF?

    • Ukurasa huu unataja idadi ya miradi ya chanzo wazi inayotumia eBPF kama teknolojia ya msingi. Miradi hii yote haijarudi chini ya Msingi wa eBPF lakini inatajwa hapa kama utafiti wa taswira ya mradi wa eBPF leo.
  • Ongeza mradi wako

    1. Hakikisha kuwa mradi unakidhi mahitaji ya kuingizwa. Tazama hapo chini.
    2. Fungua ombi la uchukuzi na toa habari zinazohitajika. Tumia mradi ulioorodheshwa tayari kama kiolezo. Mpangilio wa maombi unategemea idadi ya Nyota za Github (kutoka juu hadi chini), zinazorekebishwa kila robo.
    3. Ombi la uchukuzi litapitiwa na jamii na kuunganishwa na mmoja wa wahifadhi. Ikiwa una maswali yoyote, jisikie huru kuuliza kwenye Slack.
  • Je, unasimamia mradi ulioorodheshwa?

    • Ikiwa unasimamia moja ya miradi iliyoorodheshwa na ungependa kurekebisha maudhui. Wasiliana kwenye Slack au fungua ombi la kuchukuliwa moja kwa moja.
  • Mahitaji kwa mradi kuingizwa

    Miradi inaweza kuorodheshwa kwenye ukurasa huu kama "Kubwa" au "Inayojitokeza". Mahitaji ya kuorodheshwa kama "Inayojitokeza" ni kama ifuatavyo:

    • Mradi lazima uwe wa chanzo wazi. Kila msimbo wa chanzo lazima uwe na leseni ya chanzo wazi. Nyaraka yoyote lazima iwe na leseni ya wazi.
    • Mradi lazima utumie eBPF kama teknolojia yake ya msingi (kwa maneno mengine, mradi ungepoteza kusudi lake ikiwa sehemu za eBPF ziondolewa) au kusaidia kuharakisha usambazaji wa eBPF katika uzalishaji.
    • Mradi lazima uwe unahifadhiwa kwa shughuli.
    • Mradi lazima uwe wazi kwa ushirikiano na uwe na mfano wa utawala unaozingatia mazoea bora ya chanzo wazi.

    Ili kuorodheshwa kama "Kubwa," mradi lazima ukidhi mahitaji yote hapo juu, pamoja na:

    • Mradi lazima uwe na zaidi ya wachangiaji 50.
    • Mradi lazima utumiwe katika mazingira yanayofanana na uzalishaji na idadi kubwa ya watumiaji. Tangu habari kama hiyo inaweza isiwe rahisi kupatikana kutoka kwa kiungo kwenye mradi, habari kama hiyo inapaswa kuwa sehemu ya maelezo ya ombi la uchukuzi.