SCION XDP Border Router

This repository contains a BPF XDP application intended to accelerate the reference SCION border router by forwarding some common packet types directly in XDP.

[A more up to date development version is available at https://github.com/lschulz/bpf-experiments]

Overview

• /aes Implementation of AES-CMAC for use in XDP as required by SCION.
• /br The SCION XDP border router.
  • /br/evaluation contains some preliminary evaluation results.
• /libbpfpp C++ wrappers for libbpf
• /libbpfpy Python helpers for interfacing with libbpf
• /scion Some scripts for testing the XDP router in a dockerized local SCION topology.

Building

Clone with --recurse-submodules or initialize the submodules after cloning:

git submodule update --init

First build libbpf:

pushd libbpf/src
make
popd

Build the repository by invoking cmake directly

mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ ..
make

or run simply run make.

See the various subdirectories for instructions on how to run tests etc.