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-rw-r--r--include/linux/netfilter/nf_osf.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/netfilter/nf_osf.h b/include/linux/netfilter/nf_osf.h
index 0e114c492fb8..aee460fcbd31 100644
--- a/include/linux/netfilter/nf_osf.h
+++ b/include/linux/netfilter/nf_osf.h
@@ -1,3 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _NFOSF_H
+#define _NFOSF_H
+
#include <uapi/linux/netfilter/nf_osf.h>
/* Initial window size option state machine: multiple of mss, mtu or
@@ -31,3 +35,8 @@ bool nf_osf_match(const struct sk_buff *skb, u_int8_t family,
int hooknum, struct net_device *in, struct net_device *out,
const struct nf_osf_info *info, struct net *net,
const struct list_head *nf_osf_fingers);
+
+const char *nf_osf_find(const struct sk_buff *skb,
+ const struct list_head *nf_osf_fingers);
+
+#endif /* _NFOSF_H */