Explore BPF/eBPF Language and Capabilities

MatrixAI / Overwatch

Distributed Infrastructure Telemetry

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Explore BPF/eBPF Language and Capabilities #15

Open nzhang-zh opened 5 years ago

nzhang-zh commented 5 years ago

Explore the language feature and characteristics of BPF/eBPF as well as its capabilities before we move on to consider what and how to automatically generate BPF/eBPF code for protocol specification verification and QoS metrics measurement.

nzhang-zh commented 5 years ago

Some detailed steps to figure out.

[x] Simple packet filter demo with classic BPF
- Write assembly in C and directly attach to socket with setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, ...)
[x] HTTP monitor demo with python BCC
- Write restricted C for extended BPF, and attach with BCC.
- Use eBPF maps to store states and pass data to userspace.
[ ] Compile eBPF object files with LLVM and attach with C