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hexchen 2020-05-02 22:22:06 +00:00
parent 2ce8203628
commit 487d129443
1 changed files with 17 additions and 6 deletions
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23
src/main.rs
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@ -10,6 +10,7 @@ use pnet::packet::tcp::TcpPacket;
use pnet::packet::{MutablePacket, Packet}; use pnet::packet::{MutablePacket, Packet};
use pnet::util::MacAddr; use pnet::util::MacAddr;
use std::env; use std::env;
use std::net::Ipv4Addr;
fn main() { fn main() {
let interface_name = env::args().nth(1).unwrap(); let interface_name = env::args().nth(1).unwrap();
@ -31,8 +32,12 @@ fn main() {
loop { loop {
match rx.next() { match rx.next() {
Ok(packet) => { Ok(packet) => {
if handle_ethernet_frame(packet, own_mac).is_none() { match handle_ethernet_frame(packet, own_mac) {
println!("something broke. cool."); None => (),//println!("something broke. cool."),
Some(x) => {
println!("Sending out packet {:?}", &x);
tx.send_to(x.packet(), None);
}
} }
} }
Err(e) => { Err(e) => {
@ -64,8 +69,8 @@ fn handle_ethernet_frame(packet: &[u8], own_mac: MacAddr) -> Option<EthernetPack
_ => None, _ => None,
}; };
ret.map(|mut x| { ret.map(|mut x| {
x.set_destination(frame.get_source()); x.set_destination(MacAddr::new(0xdc, 0xa6, 0x32, 0x49, 0x87, 0xcd));
x.set_source(frame.get_destination()); //x.set_source(own_mac);
x.consume_to_immutable() x.consume_to_immutable()
}) })
} }
@ -80,6 +85,8 @@ fn handle_ipv4_frame<'a>(ether_frame: &EthernetPacket) -> Option<Ipv4Packet<'a>>
}; };
ret.map(|x| { ret.map(|x| {
clone.set_payload(x.packet()); clone.set_payload(x.packet());
clone.set_destination(Ipv4Addr::new(192, 168, 129, 12));
println!("{:?}", &clone);
clone.consume_to_immutable() clone.consume_to_immutable()
}) })
} }
@ -99,12 +106,16 @@ fn handle_ipv6_frame<'a>(ether_frame: &EthernetPacket) -> Option<Ipv6Packet<'a>>
} }
fn handle_tcp_frame<'a>(packet: &TcpPacket) -> Option<TcpPacket<'a>> { fn handle_tcp_frame<'a>(packet: &TcpPacket) -> Option<TcpPacket<'a>> {
println!("{:?}", packet);
match packet.get_destination() { match packet.get_destination() {
80 => { 80 => {
println!("it's HTTP! redirecting to sender!");
let vec: Vec<u8> = packet.packet().to_owned(); let vec: Vec<u8> = packet.packet().to_owned();
println!("{:?}", &packet);
TcpPacket::owned(vec) TcpPacket::owned(vec)
} }
_ => None, _ => {
//println!("{:?}", &packet);
None
},
} }
} }