# \[PATCH 60/98\] include/uapi/linux/netfilter/xt\_osf.h: include linux/ip.h and linux/tcp.h

- From: Mikko Rapeli \<hidden\>
- Date: 2015-05-30 16:11:33 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2015/05/4505583
- Thread: https://ratatoskr.run/netfilter-devel/2015/05/4505583/t.md

```text
Fixes userspace compilation errors:

error: ‘MAX_IPOPTLEN’ undeclared here (not in a function)
error: field ‘ip’ has incomplete type
error: field ‘tcp’ has incomplete type

Signed-off-by: Mikko Rapeli <redacted>
---
 include/uapi/linux/netfilter/xt_osf.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/uapi/linux/netfilter/xt_osf.h b/include/uapi/linux/netfilter/xt_osf.h
index 5d66cae..e615995 100644
--- a/include/uapi/linux/netfilter/xt_osf.h
+++ b/include/uapi/linux/netfilter/xt_osf.h
@@ -20,6 +20,8 @@
 #define _XT_OSF_H
 
 #include <linux/types.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
 
 #define MAXGENRELEN		32
 
-- 
2.1.4
```