From 588061eacf1b67b4a98452f35a104bfba5afde77 Mon Sep 17 00:00:00 2001
From: Brandon Currell <brandon+git@currell.pw>
Date: Sun, 16 Feb 2025 19:32:40 +0000
Subject: [PATCH] Add check for bind-dev in DCO options

---
 src/openvpn/dco.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/openvpn/dco.c b/src/openvpn/dco.c
index c65aece7b38..b93dabaff2a 100644
--- a/src/openvpn/dco.c
+++ b/src/openvpn/dco.c
@@ -346,6 +346,12 @@ dco_check_startup_option(int msglevel, const struct options *o)
         }
     }
 
+    if (o->bind_dev)
+    {
+        msg(msglevel, "Note: bind-dev not supported with DCO, disabling data channel offload");
+        return false;
+    }
+
 #if defined(_WIN32)
     if ((o->mode == MODE_SERVER) && !dco_win_supports_multipeer())
     {