Crate netgauze_pcap_reader

source ·
Expand description

Helper library to read pcap files, this library is not meant for production use but rather for testing purposes.

Example:

ⓘ
use std::{collections::HashMap, fs::File};

use bytes::BytesMut;
use pcap_parser::PcapNGReader;
use tokio_util::codec::Decoder;

use netgauze_bmp_pkt::codec::BmpCodec;
use netgauze_pcap_reader::{PcapIter, TransportProtocol};

let mut path = env!("CARGO_MANIFEST_DIR").to_owned();
path.push_str("/data/bmp.pcapng");
let file = File::open(path).unwrap();
let reader = PcapNGReader::new(165536, file).unwrap();
let reader = Box::new(reader);
let iter = PcapIter::new(reader);
let mut peers = HashMap::new();
for (src_ip, src_port, dst_ip, dst_port, protocol, value) in iter {
    if protocol != TransportProtocol::TCP {
        continue;
    }
    let key = (src_ip, src_port, dst_ip, dst_port);
    let (codec, buf) = peers
        .entry(key)
        .or_insert((BmpCodec::default(), BytesMut::new()));
    buf.extend_from_slice(value.as_slice());
    match codec.decode(buf) {
        Ok(Some(msg)) => println!("{}", serde_json::to_string(&msg).unwrap()),
        Ok(None) => {}
        Err(err) => println!("Error parsing BMP Message: {:?}", err),
    }
}

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