rvf-ebpf compiles real BPF C programs with clang and embeds them into .rvf files as EBPF_SEG segments. These programs provide kernel-level acceleration for vector operations.

Included Programs

Program	Type	Description
`xdp_distance.c`	XDP	L2 vector distance computation with LRU vector cache using BPF maps
`socket_filter.c`	Socket Filter	Port-based allow-list access control with per-CPU counters
`tc_query_route.c`	TC Classifier	Query priority routing (hot/warm/cold traffic classes)

Usage

use rvf_ebpf::{EbpfCompiler, programs};

// Access real BPF C source
println!("{}", programs::XDP_DISTANCE);
println!("{}", programs::SOCKET_FILTER);
println!("{}", programs::TC_QUERY_ROUTE);

// Compile with clang (requires clang installed)
let compiler = EbpfCompiler::new()?;
let program = compiler.compile_source(
    programs::SOCKET_FILTER,
    EbpfProgramType::SocketFilter,
)?;

// Embed compiled ELF into RVF
store.embed_ebpf(
    program.program_type as u8,
    program.attach_type as u8,
    1536,
    &program.elf_bytes,
    program.btf_bytes.as_deref(),
)?;

Requirements

clang with BPF target support (for compilation)
Programs can also be pre-compiled and embedded as raw ELF bytes

Tests

cargo test -p rvf-ebpf  # 17 tests

License

MIT OR Apache-2.0