bpfasm

Berkley Packet Filter (BPF) assembler

Author: Alex Forster \ License: MIT OR Apache-2.0

crates.io version docs.rs

Example Usage

```rust let source = r#" ldh [12] ; load ethertype into accumulator jne #0x0800, drop ; if accumulator != 0x0800: goto drop ldb [23] ; load ipproto into accumulator jneq #0x06, drop ; if accumulator != 0x06: goto drop pass: ret #-1 ; pass drop: ret #0 ; drop "#;

let extensions = bpfasm::extensions::linux();

let instructions = bpfasm::assemble(source, &extensions).expect("syntax error");

println!( "{},{}", instructions.len(), instructions.iter().map(|s| s.to_string()).collect::>().join(",") );

// Output: // 6,40 0 0 12,21 0 3 2048,48 0 0 23,21 0 1 6,6 0 0 4294967295,6 0 0 0 ```