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use std::net::Ipv4Addr;
use rusqlite::Connection;
use std::sync::{Arc, Mutex, MutexGuard};
use crate::templates::*;
use crate::fields::*;
use crate::sql::*;
use crate::utils::*;
#[derive(Clone)]
pub struct NetflowSender {
pub ip_addr: Ipv4Addr,
pub active_template: NetflowTemplate,
pub flow_packets: Vec<NetflowTemplate>,
pub flow_stats: Vec<NetFlow>,
}
impl NetflowSender {
// pub fn new(new_sender_ip: Ipv4Addr, template: NetflowTemplate) -> Self {
// NetflowSender {
// ip_addr: new_sender_ip,
// active_template: template,
// flow_packets: Vec::new(),
// flow_stats: Vec::new(),
// }
// }
pub fn report_flow_stats(&self) {
//look for existing flow and update
for flow in &self.flow_stats {
println!("Start flow data...");
println!("Src IP is {} and Dst IP is {}", flow.src_and_dst_ip.0, flow.src_and_dst_ip.1 );
println!("Src Port is {} and Dst Port is {}", flow.src_and_dst_port.0, flow.src_and_dst_port.1);
println!("Protocol is {}", flow.protocol);
println!("Bytes/octets are {}", flow.in_octets );
println!("Packets are {}", flow.in_packets);
println!("End flow data");
}
}
pub fn parse_packet_to_flow(&mut self) {
while let Some(pkt) = self.flow_packets.pop() {
//println!("parsing packet to flow");
//get tuple
//Need to handle optional variants
let proto: u8 = match pkt.protocol {
Some(U8Field::Value(v)) => { v },
_ => 0,
};
let oct: u32 = match pkt.in_octets {
Some(U32Field::Value(v)) => { v },
_ => 0,
};
let pk: u32 = match pkt.in_packets {
Some(U32Field::Value(v)) => { v },
_ => 0,
};
let s_and_d_ip: (Ipv4Addr, Ipv4Addr) = (
match pkt.src_addr {
Some(Ipv4Field::Value(v)) => { v },
_ => Ipv4Addr::UNSPECIFIED,
},
match pkt.dst_addr {
Some(Ipv4Field::Value(v)) => { v },
_ => Ipv4Addr::UNSPECIFIED,
}
);
let s_and_d_port: (u16, u16) = (
match pkt.src_port {
Some(U16Field::Value(v)) => { v },
_ => 0,
},
match pkt.dst_port {
Some(U16Field::Value(v)) => { v },
_ => 0,
}
);
let cast: TrafficType = match pkt.in_dst_mac {
Some(U64Field::Value(v)) => {
let field_array: [u8; 8] = v.to_be_bytes();
//let field_array: [u8; 6] = field_array_64[..6];
let pkt_cast = handle_traffic_type_in_flow(s_and_d_ip.0, s_and_d_ip.1);
if pkt_cast == TrafficType::Unicast && field_array[0] == 0xFF && field_array[1] == 0xFF
&& field_array[2] == 0xFF && field_array[3] == 0xFF && field_array[4] == 0xFF && field_array[5] == 0xFF {
TrafficType::Broadcast
}
else {
pkt_cast
}
},
_ => {
handle_traffic_type_in_flow(s_and_d_ip.0, s_and_d_ip.1)
},
};
let mut updated_flow = false;
//look for existing flow and update
for flow in &mut self.flow_stats {
if is_flow_match(flow.src_and_dst_ip, s_and_d_ip, flow.src_and_dst_port, s_and_d_port) {
//println!("updating existing flow");
flow.in_octets += oct;
flow.in_packets += pk;
updated_flow = true;
break;
}
}
//no flows
//create new flow
if !updated_flow {
//println!("flow_stats is empty, creating new flow");
let new_flow = NetFlow {
src_and_dst_ip: s_and_d_ip,
src_and_dst_port: s_and_d_port,
protocol: proto,
//Need to handle optional variants
in_octets: oct,
in_packets: pk,
in_db: false,
traffic_type: cast,
};
self.flow_stats.push(new_flow)
}
// None => {
// //println!("Can't parse empty packet in parse_stats_on_packet, skipping");
// return;
// }
}
}
pub fn prepare_and_update_flow_in_db(&mut self, db_conn: &mut Arc<Mutex<Connection>>) {
let sender_ip: String = String::from(&self.ip_addr.to_string());
let mut db_conn_unlocked: MutexGuard<Connection> = db_conn.lock().unwrap();
for flow in &mut self.flow_stats {
flow.in_db = check_if_flow_exists_in_db(&mut db_conn_unlocked, flow);
if !flow.in_db {
create_flow_in_db(&mut db_conn_unlocked, flow, &sender_ip);
flow.in_db = true;
}
else {
update_flow_in_db(&mut db_conn_unlocked, flow, &sender_ip);
}
}
}
}
pub fn merge_senders(received_senders: &Vec<NetflowSender>, global_senders: &mut Vec<NetflowSender>) {
if global_senders.is_empty() {
for s in received_senders {
global_senders.push(s.clone());
}
}
else {
let mut temp_senders: Vec<NetflowSender> = Vec::new();
for s in received_senders {
let mut found = false;
for g in &mut *global_senders {
if s.ip_addr == g.ip_addr {
found = true;
//copy all flow packets into g.flow_packets vec to parse later
for pkt in &s.flow_packets {
g.flow_packets.push(pkt.clone());
}
// no longer need to look at global_senders
break;
}
}
if !found {
temp_senders.push(s.clone());
}
}
if !temp_senders.is_empty() {
global_senders.append(&mut temp_senders);
}
}
}