Discard incoming segments that contain an RST, when state is CLOSED

narrowlink · Apr 16, 2024 · 2cadc16 · 2cadc16
1 parent 79510f4
commit 2cadc16
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/Cargo.toml b/Cargo.toml
@@ -38,7 +38,7 @@ udp-stream = { version = "0.0", default-features = false }
 criterion = { version = "0.5" }
 
 #tun2.rs example
-tun2 = { version = "1.2", features = ["async"] }
+tun2 = { version = "1.3", features = ["async"] }
 
 #tun_wintun.rs example
 [target.'cfg(any(target_os = "linux", target_os = "macos"))'.dev-dependencies]

diff --git a/src/stream/tcp.rs b/src/stream/tcp.rs
@@ -84,7 +84,9 @@ impl IpStackTcpStream {
             write_notify: None,
         };
         if !tcp.inner().syn {
-            _ = pkt_sender.send(stream.create_rev_packet(RST | ACK, TTL, None, Vec::new())?);
+            if !tcp.inner().rst {
+                _ = pkt_sender.send(stream.create_rev_packet(RST | ACK, TTL, None, Vec::new())?);
+            }
             Err(IpStackError::InvalidTcpPacket)
         } else {
             Ok(stream)