route_verification 0.7.1

Parse RPSL in the IRR to verify observed BGP routes
Documentation 
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use super::*;

/// Generate statistics for AS pairs.
/// Copy the content after running code from [`parse_bgp_lines`].
fn gen_as_pair_stats(query: QueryIr, mut bgp_lines: Vec<Line>, db: AsRelDb) {
    let start = Instant::now();
    let map: DashMap<(u32, u32), AsPairStats> = DashMap::new();
    bgp_lines.par_iter_mut().for_each(|l| {
        l.compare.as_pair_stats(&query, &db, &map);
    });
    let size = map.len();
    println!(
        "Generated stats of {size} AS pairs in {}ms.",
        start.elapsed().as_millis()
    );

    let mut file = BufWriter::new(File::create("as_pair_stats.csv").unwrap());
    file.write_all(b"from,to,");
    file.write_all(csv_header().as_bytes());
    file.write_all(b"relationship\n");
    for (
        (from, to),
        AsPairStats {
            route_stats,
            relationship,
        },
    ) in map.into_iter()
    {
        file.write_all(format!("{from},{to},").as_bytes());
        file.write_all(&route_stats.as_csv_bytes());
        file.write_all(b",");
        file.write_all(match relationship {
            Some(Relationship::P2C) => b"down",
            Some(Relationship::P2P) => b"peer",
            Some(Relationship::C2P) => b"up",
            None => b"other",
        });
        file.write_all(b"\n");
    }
    file.flush().unwrap();
    drop(file);
}

/// Generate statistics for up/downhill.
/// Copy the content after running code from [`parse_bgp_lines`].
fn gen_up_down_hill_stats(query: QueryIr, mut bgp_lines: Vec<Line>, db: AsRelDb) {
    let start = Instant::now();
    let up_down_hill_stats: UpDownHillStats = bgp_lines
        .par_iter_mut()
        .map(|l| l.compare.up_down_hill_stats(&query, &db))
        .reduce(UpDownHillStats::default, Add::add);
    let total = up_down_hill_stats.sum();
    println!(
        "Generated stats of {total} reports in {}ms.",
        start.elapsed().as_millis()
    );

    let mut up_down_hill_df: DataFrame = DataFrame::new(vec![
        Series::new(
            "quality",
            vec![
                "ok", "ok", "ok", "ok", "ok", "ok", "ok", "ok", "skip", "skip", "skip", "skip",
                "skip", "skip", "skip", "skip", "bad", "bad", "bad", "bad", "bad", "bad", "bad",
                "bad",
            ],
        ),
        Series::new(
            "hill",
            vec![
                "up", "down", "peer", "other", "up", "down", "peer", "other", "up", "down", "peer",
                "other", "up", "down", "peer", "other", "up", "down", "peer", "other", "up",
                "down", "peer", "other",
            ],
        ),
        Series::new(
            "port",
            vec![
                "import", "import", "import", "import", "export", "export", "export", "export",
                "import", "import", "import", "import", "export", "export", "export", "export",
                "import", "import", "import", "import", "export", "export", "export", "export",
            ],
        ),
        Series::new(
            "value",
            vec![
                up_down_hill_stats.ok_up_import,
                up_down_hill_stats.ok_down_import,
                up_down_hill_stats.ok_peer_import,
                up_down_hill_stats.ok_other_import,
                up_down_hill_stats.ok_up_export,
                up_down_hill_stats.ok_down_export,
                up_down_hill_stats.ok_peer_export,
                up_down_hill_stats.ok_other_export,
                up_down_hill_stats.skip_up_import,
                up_down_hill_stats.skip_down_import,
                up_down_hill_stats.skip_peer_import,
                up_down_hill_stats.skip_other_import,
                up_down_hill_stats.skip_up_export,
                up_down_hill_stats.skip_down_export,
                up_down_hill_stats.skip_peer_export,
                up_down_hill_stats.skip_other_export,
                up_down_hill_stats.bad_up_import,
                up_down_hill_stats.bad_down_import,
                up_down_hill_stats.bad_peer_import,
                up_down_hill_stats.bad_other_import,
                up_down_hill_stats.bad_up_export,
                up_down_hill_stats.bad_down_export,
                up_down_hill_stats.bad_peer_export,
                up_down_hill_stats.bad_other_export,
            ],
        ),
    ])
    .unwrap();
    CsvWriter::new(File::create("up_down_hill_stats.csv").unwrap())
        .finish(&mut up_down_hill_df)
        .unwrap();
}

/// Generate statistics for each AS.
/// Copy the content after running code from [`parse_bgp_lines`],
fn gen_as_stats(query: QueryIr, mut bgp_lines: Vec<Line>, db: AsRelDb) {
    let start = Instant::now();
    let map: DashMap<u32, RouteStats<u64>> = DashMap::new();
    bgp_lines.par_iter_mut().for_each(|l| {
        l.compare.as_stats(&query, &db, &map);
    });
    let size = map.len();
    println!(
        "Generated stats for {size} AS in {}ms.",
        start.elapsed().as_millis()
    );

    let mut file = BufWriter::new(File::create("as_stats.csv").unwrap());
    file.write_all(b"aut_num,");
    file.write_all(csv_header().trim_end_matches(',').as_bytes());
    file.write_all(b"\n");
    for (an, s) in map.into_iter() {
        file.write_all(an.to_string().as_bytes());
        file.write_all(b",");
        file.write_all(&s.as_csv_bytes());
        file.write_all(b"\n");
    }
    file.flush().unwrap();
    drop(file);
}