From a3e8e972fa7f6aaa82d01d4c5a34e9e1f1a129b6 Mon Sep 17 00:00:00 2001
From: Roardom <roardom@protonmail.com>
Date: Mon, 1 Jul 2024 05:18:06 +0000
Subject: [PATCH] fix: block system reserved ports

---
 src/tracker/blacklisted_port.rs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/tracker/blacklisted_port.rs b/src/tracker/blacklisted_port.rs
index 2d6395e..66a3b39 100644
--- a/src/tracker/blacklisted_port.rs
+++ b/src/tracker/blacklisted_port.rs
@@ -7,7 +7,7 @@ pub struct Set(IndexSet<u16>);
 impl Default for Set {
     #[rustfmt::skip]
     fn default() -> Set {
-        Set(IndexSet::from([
+        let mut set = IndexSet::from([
             // SSH Port
             22,
             // DNS queries
@@ -34,7 +34,14 @@ impl Default for Set {
             6347,
             // Port used by p2p software, such as WinMX, Napster.
             6699,
-        ]))
+        ]);
+
+        // Block system-reserved ports since 99.9% of the time they're fake and thus not connectable
+        for system_reserved_port in 0..1024 {
+            set.insert(system_reserved_port);
+        }
+
+        Set(set)
     }
 }