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Toke Høiland-Jørgensen 070715cf1c Add pkt-loop-filter example

Add an example to filter looping packets on (for instance) a bond
interface, by recording the egress MAC+VLAN and dropping any packets that
come in on other (related) interfaces with the same MAC+VLAN.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>

2022-05-20 14:53:14 +02:00

AF_XDP-interaction

refactor code test02_should_fail

2022-04-22 12:21:35 +02:00

bpf-link-hang

bpf-link-hang: Add bpftrace invocation to show hang in synchronize_rcu_tasks

2021-03-23 13:07:36 +01:00

BTF-playground

BTF-playground: Handle error and free resources explicitly

2022-03-09 09:04:38 +08:00

dhcp-relay

Add DHCP relay program.

2021-06-21 22:51:57 +02:00

encap-forward

encap-forward: Don't redefine AF_INET

2022-04-27 13:05:26 +02:00

headers

Update headers/linux/btf.h

2022-01-17 13:12:53 +01:00

include

xdp/parsing_helpers: Check IP protocol version when parsing

2021-06-18 00:56:08 +02:00

ktrace-CO-RE

ktrace-CO-RE/ktrace01_kern: kprobe changed name to .isra.0

2021-09-10 13:45:42 +02:00

lib

Fix xdp-tools submodule to work with libbpf submodule

2022-04-26 22:03:08 +02:00

lsm-nobpf

lsm-nobpf: Stop using deprecated helper

2022-01-17 13:11:27 +01:00

MTU-tests

MTU-tests: BPF-helper did make it upstream and in libbpf

2021-10-26 16:10:57 +02:00

nat64-bpf

nat64-bpf: Use logging helpers and add verbose option

2022-04-20 13:25:27 +02:00

pkt-loop-filter

Add pkt-loop-filter example

2022-05-20 14:53:14 +02:00

pping

pping: Guard local definitions of AF_* constants in pping_kern.c

2022-04-14 21:29:32 +02:00

preserve-dscp

preserve-dscp: Add a warning about data leakage to the README

2021-06-18 01:30:36 +02:00

tc-basic-classifier

Adding a basic TC eBPF Qdisc classifier example

2021-03-17 02:26:58 +01:00

tc-policy

tc-policy: Update README with info on inspecting loaded BPF-progs

2022-02-01 15:30:17 +01:00

traffic-pacing-edt

traffic-pacing-edt: Prepare that rate can come from BPF-map

2021-02-09 14:28:45 +01:00

.gitignore

Ignore lib/libbpf-install/

2022-03-06 21:54:01 +08:00

.gitmodules

Integrate libxdp as a submodule

2022-04-20 13:12:45 +02:00

configure

configure: Make sure libxdp is before libbpf in linker arguments

2022-04-27 00:43:02 +02:00

Makefile

Makefile: clean target should also call clean for lib directory

2021-01-13 18:09:09 +01:00

README.md

readme: fix typos

2021-11-06 12:33:09 +00:00

README.md

Practical BPF examples

This git repository contains a diverse set of practical BPF examples that solve (or demonstrate) a specific use-case using BPF.

It is meant to ease doing rapid prototyping and development, writing C-code BPF programs using libbpf. The goal is to make it easier for developers to get started coding.

Many developers struggle to get a working BPF build environment. The repo enviroment makes it easy to build/compile BPF programs by doing the necessary libbpf setup transparently and detect missing compile dependencies (via the configure script). It is a declared goal to make BPF programming more consumable by detecting and reporting issues (when possible).