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bugfix(fake_tcp) do not RST packets that already have RST on them

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This commit is contained in:
Datong Sun 2021-09-16 21:35:34 -07:00 committed by Datong Sun
parent e869255785
commit ef9a2962df
1 changed files with 3 additions and 1 deletions
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4
src/fake_tcp/mod.rs
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@ -394,6 +394,7 @@ impl Stack {
assert!(shared.tuples.lock().unwrap().insert(tuple, Arc::new(incoming)).is_none()); assert!(shared.tuples.lock().unwrap().insert(tuple, Arc::new(incoming)).is_none());
tokio::spawn(sock.accept()); tokio::spawn(sock.accept());
} else { } else {
info!("Bad TCP SYN packet from {}, sending RST", remote_addr);
let buf = build_tcp_packet( let buf = build_tcp_packet(
local_addr, local_addr,
remote_addr, remote_addr,
@ -404,7 +405,8 @@ impl Stack {
); );
shared.outgoing.try_send(buf).unwrap(); shared.outgoing.try_send(buf).unwrap();
} }
} else { } else if (tcp_packet.get_flags() & tcp::TcpFlags::RST) == 0 {
info!("Bad TCP packet from {}, sending RST", remote_addr);
let buf = build_tcp_packet( let buf = build_tcp_packet(
local_addr, local_addr,
remote_addr, remote_addr,