conn: do not SO_REUSEADDR on linux

SO_REUSEADDR does not make sense for unicast UDP sockets. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
WireGuard · Dec 18, 2020 · 42de652 · 42de652
1 parent bdda4ac
commit 42de652
Showing 1 changed file with 0 additions and 19 deletions.
diff --git a/conn/conn_linux.go b/conn/conn_linux.go
@@ -326,15 +326,6 @@ func create4(port uint16) (int, uint16, error) {
 	// set sockopts and bind
 
 	if err := func() error {
-		if err := unix.SetsockoptInt(
-			fd,
-			unix.SOL_SOCKET,
-			unix.SO_REUSEADDR,
-			1,
-		); err != nil {
-			return err
-		}
-
 		if err := unix.SetsockoptInt(
 			fd,
 			unix.IPPROTO_IP,
@@ -379,16 +370,6 @@ func create6(port uint16) (int, uint16, error) {
 	}
 
 	if err := func() error {
-
-		if err := unix.SetsockoptInt(
-			fd,
-			unix.SOL_SOCKET,
-			unix.SO_REUSEADDR,
-			1,
-		); err != nil {
-			return err
-		}
-
 		if err := unix.SetsockoptInt(
 			fd,
 			unix.IPPROTO_IPV6,