luckyimnotanigger/tun2proxy
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fix memory exhaustion

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ssrlive 2023-10-06 23:12:06 +08:00
parent 81db9cb181
commit 2c9ac6f3a9
1 changed files with 6 additions and 0 deletions
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6
src/tun2proxy.rs
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@ -174,6 +174,7 @@ const CLIENT_WRITE_CLOSED: u8 = 2;
const UDP_ASSO_TIMEOUT: u64 = 10; // seconds
const DNS_PORT: u16 = 53;
const IP_PACKAGE_MAX_SIZE: usize = 0xFFFF;
struct ConnectionState {
smoltcp_handle: SocketHandle,
@ -436,6 +437,11 @@ impl<'a> TunToProxy<'a> {
let socket = self.sockets.get_mut::<tcp::Socket>(state.smoltcp_handle);
let mut error = Ok(());
while socket.can_recv() && error.is_ok() {
let dir = Direction::Outgoing(OutgoingDirection::ToServer);
if state.proxy_handler.data_len(dir) >= IP_PACKAGE_MAX_SIZE {
break;
}
socket.recv(|data| {
let event = IncomingDataEvent {
direction: IncomingDirection::FromClient,