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use ::std::collections::{BTreeMap, HashMap};
use ::std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
use crate::network::{Connection, LocalSocket, Utilization};
static BANDWIDTH_DECAY_FACTOR: f32 = 0.5;
pub trait Bandwidth {
fn get_total_bytes_downloaded(&self) -> u128;
fn get_total_bytes_uploaded(&self) -> u128;
fn get_avg_bytes_downloaded(&self) -> u128;
fn get_avg_bytes_uploaded(&self) -> u128;
}
#[derive(Default)]
pub struct NetworkData {
pub total_bytes_downloaded: u128,
pub total_bytes_uploaded: u128,
pub prev_total_bytes_downloaded: u128,
pub prev_total_bytes_uploaded: u128,
pub connection_count: u128,
}
#[derive(Default)]
pub struct ConnectionData {
pub total_bytes_downloaded: u128,
pub total_bytes_uploaded: u128,
pub prev_total_bytes_downloaded: u128,
pub prev_total_bytes_uploaded: u128,
pub process_name: String,
pub interface_name: String,
}
fn calc_avg_bandwidth(prev_bandwidth: u128, curr_bandwidth: u128) -> u128 {
if prev_bandwidth == 0 {
curr_bandwidth
} else {
(prev_bandwidth as f32 * BANDWIDTH_DECAY_FACTOR
+ (1.0 - BANDWIDTH_DECAY_FACTOR) * curr_bandwidth as f32) as u128
}
}
impl Bandwidth for ConnectionData {
fn get_total_bytes_uploaded(&self) -> u128 {
self.total_bytes_uploaded
}
fn get_total_bytes_downloaded(&self) -> u128 {
self.total_bytes_downloaded
}
fn get_avg_bytes_uploaded(&self) -> u128 {
calc_avg_bandwidth(self.prev_total_bytes_uploaded, self.total_bytes_uploaded)
}
fn get_avg_bytes_downloaded(&self) -> u128 {
calc_avg_bandwidth(
self.prev_total_bytes_downloaded,
self.total_bytes_downloaded,
)
}
}
impl Bandwidth for NetworkData {
fn get_total_bytes_uploaded(&self) -> u128 {
self.total_bytes_uploaded
}
fn get_total_bytes_downloaded(&self) -> u128 {
self.total_bytes_downloaded
}
fn get_avg_bytes_uploaded(&self) -> u128 {
calc_avg_bandwidth(self.prev_total_bytes_uploaded, self.total_bytes_uploaded)
}
fn get_avg_bytes_downloaded(&self) -> u128 {
calc_avg_bandwidth(
self.prev_total_bytes_downloaded,
self.total_bytes_downloaded,
)
}
}
#[derive(Default)]
pub struct UIState {
pub processes: BTreeMap<String, NetworkData>,
pub remote_addresses: BTreeMap<Ipv4Addr, NetworkData>,
pub connections: BTreeMap<Connection, ConnectionData>,
pub total_bytes_downloaded: u128,
pub total_bytes_uploaded: u128,
}
impl UIState {
fn get_proc_name<'a>(
connections_to_procs: &'a HashMap<LocalSocket, String>,
local_socket: &LocalSocket,
) -> Option<&'a String> {
if let Some(process_name) = connections_to_procs.get(local_socket) {
Some(process_name)
} else if let Some(process_name) = connections_to_procs.get(&LocalSocket {
ip: IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)),
port: local_socket.port,
protocol: local_socket.protocol,
}) {
Some(process_name)
} else {
connections_to_procs.get(&LocalSocket {
ip: IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0)),
port: local_socket.port,
protocol: local_socket.protocol,
})
}
}
pub fn new(
connections_to_procs: HashMap<LocalSocket, String>,
network_utilization: Utilization,
old_state: &UIState,
) -> Self {
let mut processes: BTreeMap<String, NetworkData> = BTreeMap::new();
let mut remote_addresses: BTreeMap<Ipv4Addr, NetworkData> = BTreeMap::new();
let mut connections: BTreeMap<Connection, ConnectionData> = BTreeMap::new();
let mut total_bytes_downloaded: u128 = 0;
let mut total_bytes_uploaded: u128 = 0;
for (connection, connection_info) in network_utilization.connections {
let connection_data = connections.entry(connection).or_default();
let data_for_remote_address = remote_addresses
.entry(connection.remote_socket.ip)
.or_default();
connection_data.total_bytes_downloaded += connection_info.total_bytes_downloaded;
connection_data.total_bytes_uploaded += connection_info.total_bytes_uploaded;
connection_data.interface_name = connection_info.interface_name;
data_for_remote_address.total_bytes_downloaded +=
connection_info.total_bytes_downloaded;
data_for_remote_address.total_bytes_uploaded += connection_info.total_bytes_uploaded;
data_for_remote_address.connection_count += 1;
total_bytes_downloaded += connection_info.total_bytes_downloaded;
total_bytes_uploaded += connection_info.total_bytes_uploaded;
if let Some(process_name) =
UIState::get_proc_name(&connections_to_procs, &connection.local_socket)
{
let data_for_process = processes.entry(process_name.clone()).or_default();
data_for_process.total_bytes_downloaded += connection_info.total_bytes_downloaded;
data_for_process.total_bytes_uploaded += connection_info.total_bytes_uploaded;
data_for_process.connection_count += 1;
connection_data.process_name = process_name.clone();
// Record bandwidth data of last iteration
if let Some(prev_connection_info) = old_state.connections.get(&connection) {
// Using previous round's weighted average. Exponential decay
let prev_bytes_downloaded = prev_connection_info.get_avg_bytes_downloaded();
let prev_bytes_uploaded = prev_connection_info.get_avg_bytes_uploaded();
connection_data.prev_total_bytes_downloaded += prev_bytes_downloaded;
connection_data.prev_total_bytes_uploaded += prev_bytes_uploaded;
data_for_process.prev_total_bytes_downloaded += prev_bytes_downloaded;
data_for_process.prev_total_bytes_uploaded += prev_bytes_uploaded;
data_for_remote_address.prev_total_bytes_downloaded += prev_bytes_downloaded;
data_for_remote_address.prev_total_bytes_uploaded += prev_bytes_uploaded;
}
} else {
connection_data.process_name = String::from("<UNKNOWN>");
}
}
UIState {
processes,
remote_addresses,
connections,
total_bytes_downloaded,
total_bytes_uploaded,
}
}
}
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