todo rewrite client

2026-03-04 14:28:10 +07:00
parent 1f247073ca
commit 654d2af76e
14 changed files with 723 additions and 516 deletions
@@ -1,105 +0,0 @@
-use bytes::{Bytes, BytesMut};
-use smoltcp::phy::{ChecksumCapabilities, Device, DeviceCapabilities, Medium, RxToken, TxToken};
-use std::io::{Read, Write};
-use std::os::fd::RawFd;
-use std::os::unix::io::AsRawFd;
-
-pub struct TunDevice<T: Read + Write + AsRawFd> {
-    pub io: T, // Сюда мы запихнем или File (Android) или Tun-либу
-    mtu: usize,
-    read_buffer: BytesMut,
-}
-
-impl<T: Read + Write + AsRawFd> TunDevice<T> {
-    pub fn new(io: T, mtu: usize) -> Self {
-        let fd = io.as_raw_fd();
-        unsafe {
-            let flags = libc::fcntl(fd, libc::F_GETFL);
-            if flags == -1 {
-                panic!("Не удалось получить флаги файла");
-            }
-            libc::fcntl(fd, libc::F_SETFL, flags | libc::O_NONBLOCK);
-        }
-        Self {
-            io,
-            mtu,
-            read_buffer: BytesMut::with_capacity(mtu),
-        }
-    }
-}
-
-impl<T: Read + Write + AsRawFd> Device for TunDevice<T> {
-    type RxToken<'a>
-        = TunRxToken
-    where
-        Self: 'a;
-    type TxToken<'a>
-        = TunTxToken<'a, T>
-    where
-        Self: 'a;
-
-    fn capabilities(&self) -> DeviceCapabilities {
-        let mut caps = DeviceCapabilities::default();
-        caps.medium = Medium::Ip;
-        caps.max_transmission_unit = self.mtu;
-        caps.checksum = ChecksumCapabilities::ignored();
-        caps
-    }
-
-    fn receive(
-        &mut self,
-        _timestamp: smoltcp::time::Instant,
-    ) -> Option<(Self::RxToken<'_>, Self::TxToken<'_>)> {
-        let mut tmp_buf = [0u8; 2048];
-        match self.io.read(&mut tmp_buf) {
-            Ok(n) if n > 0 => {
-                let rx_data = Bytes::copy_from_slice(&tmp_buf[..n]);
-
-                let rx = TunRxToken { buffer: rx_data };
-                let tx = TunTxToken { io: &mut self.io };
-                Some((rx, tx))
-            }
-            _ => None,
-        }
-    }
-
-    fn transmit(&mut self, _timestamp: smoltcp::time::Instant) -> Option<Self::TxToken<'_>> {
-        Some(TunTxToken { io: &mut self.io })
-    }
-}
-
-pub struct TunRxToken {
-    buffer: Bytes,
-}
-
-impl RxToken for TunRxToken {
-    fn consume<R, F>(mut self, f: F) -> R
-    where
-        F: FnOnce(&[u8]) -> R,
-    {
-        f(&mut self.buffer)
-    }
-}
-
-pub struct TunTxToken<'a, T: Write> {
-    io: &'a mut T,
-}
-
-impl<'a, T: Write> TxToken for TunTxToken<'a, T> {
-    fn consume<R, F>(self, len: usize, f: F) -> R
-    where
-        F: FnOnce(&mut [u8]) -> R,
-    {
-        // ПРЯМАЯ ЗАПИСЬ БЕЗ ДОБАВЛЕНИЯ PI-ЗАГОЛОВКА
-        let mut buffer = vec![0u8; len];
-        let result = f(&mut buffer);
-        let _ = self.io.write_all(&buffer);
-        result
-    }
-}
-
-impl<T: Read + Write + AsRawFd> AsRawFd for TunDevice<T> {
-    fn as_raw_fd(&self) -> RawFd {
-        self.io.as_raw_fd()
-    }
-}