Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/include/linux/netfilter/nfnetlink_osf.h b/include/linux/netfilter/nfnetlink_osf.h
new file mode 100644
index 000000000..788613f36
--- /dev/null
+++ b/include/linux/netfilter/nfnetlink_osf.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _NFOSF_H
+#define _NFOSF_H
+
+#include <uapi/linux/netfilter/nfnetlink_osf.h>
+
+enum osf_fmatch_states {
+	/* Packet does not match the fingerprint */
+	FMATCH_WRONG = 0,
+	/* Packet matches the fingerprint */
+	FMATCH_OK,
+	/* Options do not match the fingerprint, but header does */
+	FMATCH_OPT_WRONG,
+};
+
+extern struct list_head nf_osf_fingers[2];
+
+struct nf_osf_finger {
+	struct rcu_head			rcu_head;
+	struct list_head		finger_entry;
+	struct nf_osf_user_finger	finger;
+};
+
+struct nf_osf_data {
+	const char *genre;
+	const char *version;
+};
+
+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);
+
+bool nf_osf_find(const struct sk_buff *skb,
+		 const struct list_head *nf_osf_fingers,
+		 const int ttl_check, struct nf_osf_data *data);
+
+#endif /* _NFOSF_H */