Advice on Using Pure Go with eBPF

[Sharon Mafgaoker]

Hey Everyone,

Nice to e-meet you all! I'm new here and kindly asking for some advice on a topic I'm exploring.

While watching Rob Pike's videos about Go, I noticed he doesn't recommend using CGO due to potential issues when changing OS/architecture.

I have an idea to read incoming IPs, perform background checks, and validate them by harnessing the power of concurrency. To analyze packets faster, I want to use eBPF. However, I haven't found a way to load Go code directly into eBPF, and it seems like CGO is the only way.

Does anyone have advice on how to use pure Go with eBPF? Any insights or alternative approaches would be greatly appreciated.

Thank you!

Best regards,
Sharon

[burak serdar]

As far as I know, you cannot write ebpf code using Go. You can write C
code for ebpf filters, and then use Go to install it and interface
with it. Take a look at Cilium tools. You might also want to take a
look at https://github.com/kubeshark/tracer.

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[twp...@gmail.com]

For eBPF support in Go, see https://github.com/cilium/ebpf.

AFAIK at the moment you can't compile Go to eBPF. The most promising approach is probably to adapt TinyGo to generate eBPF. There's an issue that's been open for three years with no activity: https://github.com/tinygo-org/tinygo/issues/2017.

Regards,

Tom

[Mike Schinkel]

I for one would really like to see Go or TinyGo find a way to target eBPF similar to how it can target WASM. 

-Mike

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