XDP in userspace eBPF with DPDK

The repo is moved to https://github.com/userspace-xdp/userspace-xdp

XDP examples: libbpf-bootstrap

Use libbpf-bootsrap to load xdp program in userspace.

Run xdp-observer

Run in kernel

make -C xdp-observer
# xdp-observer/main ens33
Source IP, Destination IP, Source Port, Destination Port, SIN, FIN, RST, PSH, ACK 
10.0.0.1 10.0.0.10 44698 8000 1 0 0 0 0
10.0.0.1 10.0.0.10 44698 8000 1 0 0 0 0
10.0.0.1 10.0.0.10 44698 8000 1 0 0 0 0
10.0.0.1 10.0.0.10 44698 8000 1 0 0 0 0

Run in userspace with bpftime

# LD_PRELOAD=build-bpftime/bpftime/runtime/syscall-server/libbpftime-syscall-server.so SPDLOG_LEVEL=error xdp-observer/main veth0 xdp-observer/userspace.btf
Successfully started! Please Ctrl+C to stop.
Source IP, Destination IP, Source Port, Destination Port, SIN, FIN, RST, PSH, ACK 
10.0.0.1 10.0.0.10 44698 8000 1 0 0 0 0
10.0.0.1 10.0.0.10 44698 8000 1 0 0 0 0
10.0.0.1 10.0.0.10 44698 8000 1 0 0 0 0
10.0.0.1 10.0.0.10 44698 8000 1 0 0 0 0
^CTerminating

Test

Compile and run

To get and build dpdk from the root project directory:

(Also add bpftime in the directory)

git submodule update --init --recursive
make dpdk

build bpftime library

export PKG_CONFIG_PATH=<the path of the pkgconfig directory inside dpdk>
cmake -B build-bpftime .
make -C  build-bpftime

To build the dpdk-based server:

export PKG_CONFIG_PATH=<the path of the pkgconfig directory inside dpdk>
# e.g. export PKG_CONFIG_PATH=/home/yunwei37/XDP-eBPF-in-DPDK/external/dpdk/install-dir/lib/x86_64-linux-gnu/pkgconfig
make build

To run a very simple test:

In one terminal window

sudo ./build/base-server -l 0 --vdev=net_tap0,iface=tapdpdk

In another terminal window:

sudo ./scripts/testbed-setup.sh
sudo arping -i veth0 1.2.3.4

clean up share memory

sudo build-bpftime/bpftime/tools/bpftimetool/bpftimetool remove