use pnet::datalink::{Channel, DataLinkReceiver, DataLinkSender, NetworkInterface, channel, interfaces};
use std::{io::{Error, ErrorKind}, net::{IpAddr, Ipv4Addr}};
#[derive(Clone, PartialEq, Eq, Debug, Hash)]
pub struct Interface {
network_interface: Option<NetworkInterface>,
}
impl Interface {
pub fn new() -> Self {
Interface {
network_interface: Interface::get_interface_by_guess(),
}
}
pub fn new_by_name(interface_name: &str) -> Option<Self> {
let iface = Interface::get_interface_by_name(&interface_name);
match iface {
Some(_) => Some(Interface {
network_interface: iface,
}),
None => None,
}
}
pub fn get_ip(&self) -> Option<Ipv4Addr> {
self.network_interface
.as_ref()
.unwrap()
.ips
.iter()
.find(|ip| ip.is_ipv4())
.map(|ip| match ip.ip() {
IpAddr::V4(ip) => Some(ip),
_ => None
})
.unwrap()
}
pub fn get_mac(&self) -> MacAddr {
self.network_interface.as_ref().unwrap().mac.unwrap().into()
}
pub fn get_raw_interface(&self) -> &NetworkInterface {
&self.network_interface.as_ref().unwrap()
}
pub fn create_tx_rx_channels(&self) -> Result<(Box<dyn DataLinkSender>, Box<dyn DataLinkReceiver>), Error> {
match channel(&self.get_raw_interface(), Default::default()) {
Ok(Channel::Ethernet(tx, rx)) => Ok((tx, rx)),
Ok(_) => return Err(Error::new(ErrorKind::Other, "Unknown channel type")),
Err(err) => return Err(err),
}
}
fn get_all_interfaces() -> Vec<NetworkInterface> {
interfaces()
}
fn get_interface_by_guess() -> Option<NetworkInterface> {
let considered_ifaces = Interface::get_all_interfaces()
.into_iter()
.filter(|iface| !iface.is_loopback() && iface.is_up() && !iface.ips.is_empty())
.collect::<Vec<NetworkInterface>>();
match considered_ifaces.first() {
Some(iface) => Some(iface.clone()),
None => None,
}
}
fn get_interface_by_name(name: &str) -> Option<NetworkInterface> {
let considered_ifaces = Interface::get_all_interfaces()
.into_iter()
.filter(|iface| iface.name == *name)
.collect::<Vec<NetworkInterface>>();
match considered_ifaces.first() {
Some(iface) => Some(iface.clone()),
None => None,
}
}
}
#[derive(PartialEq, Eq, Clone, Copy)]
pub struct MacAddr(pub u8, pub u8, pub u8, pub u8, pub u8, pub u8);
impl MacAddr {
pub fn new(a: u8, b: u8, c: u8, d: u8, e: u8, f: u8) -> Self {
MacAddr(a, b, c, d, e, f)
}
}
impl std::fmt::Display for MacAddr {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(
f,
"{:02x}:{:02x}:{:02x}:{:02x}:{:02x}:{:02x}",
self.0, self.1, self.2, self.3, self.4, self.5
)
}
}
impl From<pnet::util::MacAddr> for MacAddr {
fn from(pnet_mac_addr: pnet::util::MacAddr) -> Self {
MacAddr(
pnet_mac_addr.0,
pnet_mac_addr.1,
pnet_mac_addr.2,
pnet_mac_addr.3,
pnet_mac_addr.4,
pnet_mac_addr.5,
)
}
}
impl From<MacAddr> for pnet::util::MacAddr {
fn from(mac_addr: MacAddr) -> Self {
pnet::util::MacAddr(
mac_addr.0, mac_addr.1, mac_addr.2, mac_addr.3, mac_addr.4, mac_addr.5,
)
}
}