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mod config;
use std::{collections::HashMap, net::{SocketAddr, TcpListener, TcpStream, UdpSocket}, sync::{Arc, Mutex}};
use iso13400_2::{response, *};
use crate::DoIpError;
#[derive(Debug)]
pub struct DoIpServer {
version: Version,
address: LogicAddress,
udp_socket: UdpSocket,
tcp_listener: TcpListener,
tcp_streams: Arc<Mutex<HashMap<SocketAddr, TcpStream>>>,
}
impl DoIpServer {
pub fn new(addr: &str, version: Version, address: LogicAddress) -> Result<Self, DoIpError> {
let udp_socket = UdpSocket::bind(format!("{addr}:{}", UDP_SERVER_PORT))
.map_err(DoIpError::IoError)?;
let tcp_listener = TcpListener::bind(format!("{addr}:{}", UDP_SERVER_PORT))
.map_err(DoIpError::IoError)?;
Ok(Self {
version,
address,
udp_socket,
tcp_listener,
tcp_streams: Default::default(),
})
}
fn udp_service(&self) -> Result<(), DoIpError> {
loop {
let mut buffer = [0; 1024];
if let Ok(size) = self.udp_socket.recv(&mut buffer) {
if size > 0 {
match Message::try_from(&buffer[..size]) {
Ok(message) => {
let version = self.version;
if version != self.version
&& version != Version::Default {
let response = Message {
version: self.version.clone(),
payload: Payload::Response(ResponsePayload::HeaderNegative(
response::HeaderNegative::new(HeaderNegativeCode::IncorrectPatternFormat)
))
};
self.udp_send(response)?;
continue;
}
match message.payload {
Payload::Request(req) => match req {
RequestPayload::VehicleId(_) => {
let response = Message {
version: self.version.clone(),
payload: Payload::Response(ResponsePayload::HeaderNegative(
response::HeaderNegative::new(HeaderNegativeCode::IncorrectPatternFormat)
))
};
}
RequestPayload::VehicleWithEid(v) => {}
RequestPayload::VehicleWithVIN(v) => {}
RequestPayload::EntityStatue(v) => {}
RequestPayload::DiagPowerMode(v) => {}
// RequestPayload::RoutingActive(_) => {}
// RequestPayload::AliveCheck(_) => {}
// RequestPayload::Diagnostic(_) => {}
_ => {
let response = Message {
version: self.version.clone(),
payload: Payload::Response(ResponsePayload::HeaderNegative(
response::HeaderNegative::new(HeaderNegativeCode::UnknownPayloadTYpe)
))
};
self.udp_send(response)?;
}
},
Payload::Response(_) => {
let response = Message {
version: self.version.clone(),
payload: Payload::Response(ResponsePayload::HeaderNegative(
response::HeaderNegative::new(HeaderNegativeCode::UnknownPayloadTYpe)
))
};
self.udp_send(response)?;
}
}
},
Err(error) => {
if let Some(code) = match error{
Iso13400Error::InvalidLength { .. } => Some(HeaderNegativeCode::IncorrectPatternFormat),
Iso13400Error::InvalidDataLen { .. } => Some(HeaderNegativeCode::InvalidPayloadLength),
Iso13400Error::InvalidVersion { .. } => Some(HeaderNegativeCode::IncorrectPatternFormat),
Iso13400Error::InvalidPayloadType(..) => Some(HeaderNegativeCode::UnknownPayloadTYpe),
_ => None
} {
match code {
HeaderNegativeCode::IncorrectPatternFormat |
HeaderNegativeCode::InvalidPayloadLength => {
// self
},
_ => {}
}
}
}
}
}
}
}
}
fn tcp_service(&mut self) -> Result<(), DoIpError> {
loop {
if let Ok((tcp_stream, addr)) = self.tcp_listener.accept() {
log::info!("Connection established with {}", addr);
match self.tcp_streams.lock() {
Ok(mut streams) => {
streams.remove(&addr);
streams.insert(addr, tcp_stream);
},
Err(_) => {
},
}
}
}
}
fn udp_send(&self, message: Message) -> Result<(), DoIpError> {
let data: Vec<_> = message.into();
let size = self.udp_socket.send(&data)
.map_err(DoIpError::IoError)?;
let data_len = data.len();
if size < data_len {
log::warn!("DoIPServer - udp send size: {}, expect: {}", size, data_len);
}
Ok(())
}
}