nata 0.1.0

Network packet manipulation toolkit
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58

use hexlit::hex;
use nata::datalink::PacketWrite;
use nata::datalink::{pcap::Pcap, Interface};
use nata::is_layer;
use nata::layer::ether::{Ether, EtherType, MacAddress};
use nata::layer::icmp::{Icmp4, IcmpType};
use nata::layer::ip::{IpProtocol, Ipv4};
use nata::packet::Packet;
use std::env;
use std::net::Ipv4Addr;
use std::str::FromStr;

fn main() {
    let args: Vec<String> = env::args().collect();
    let interface = args.get(1).expect("expected a network interface");
    let ip_addr = args.get(2).expect("expected an ipv4 address as argument");

    // Initiate a read/write channel on the network interface using libpcap
    let mut int = Interface::init::<Pcap>(interface).unwrap();
    let mac_addr = int.mac_address().cloned().unwrap();
    println!("mac_addr: {:x?}", mac_addr);
    let (mut rx, mut tx) = int.split();

    // Create a ICMP Echo Request packet
    let mut echo_request = Packet::from_layers(vec![
        Box::new(Ether {
            dst: MacAddress(hex!("ec086b507d58")), // Gateway mac
            src: mac_addr,
            ether_type: EtherType::IPv4,
        }),
        Box::new(Ipv4 {
            src: Ipv4Addr::from_str("192.168.1.106").unwrap().into(), // Src Ip
            dst: Ipv4Addr::from_str(ip_addr).unwrap().into(),
            ttl: 124,
            protocol: IpProtocol::ICMP,
            identification: 0x3716,
            flags: 0b0100,
            ..Default::default()
        }),
        Box::new(Icmp4 {
            icmp_type: IcmpType::EchoRequest,
            data: vec![0xFF, 0xFF],
            message: 0xDFADBEFF,
            ..Default::default()
        }),
    ]);

    echo_request.finalize().unwrap();

    tx.write(echo_request).unwrap();
    for pkt in &mut rx {
        for l in pkt.layers() {
            if is_layer!(l, Icmp4) {
                println!("Packet: {:?}", pkt);
            }
        }
    }
}