nfnetlink_osf.h (967B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _NFOSF_H 3#define _NFOSF_H 4 5#include <uapi/linux/netfilter/nfnetlink_osf.h> 6 7enum osf_fmatch_states { 8 /* Packet does not match the fingerprint */ 9 FMATCH_WRONG = 0, 10 /* Packet matches the fingerprint */ 11 FMATCH_OK, 12 /* Options do not match the fingerprint, but header does */ 13 FMATCH_OPT_WRONG, 14}; 15 16extern struct list_head nf_osf_fingers[2]; 17 18struct nf_osf_finger { 19 struct rcu_head rcu_head; 20 struct list_head finger_entry; 21 struct nf_osf_user_finger finger; 22}; 23 24struct nf_osf_data { 25 const char *genre; 26 const char *version; 27}; 28 29bool nf_osf_match(const struct sk_buff *skb, u_int8_t family, 30 int hooknum, struct net_device *in, struct net_device *out, 31 const struct nf_osf_info *info, struct net *net, 32 const struct list_head *nf_osf_fingers); 33 34bool nf_osf_find(const struct sk_buff *skb, 35 const struct list_head *nf_osf_fingers, 36 const int ttl_check, struct nf_osf_data *data); 37 38#endif /* _NFOSF_H */