1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _IPV4_NF_REJECT_H
3#define _IPV4_NF_REJECT_H
4
5#include <linux/skbuff.h>
6#include <net/ip.h>
7#include <net/icmp.h>
8#include <net/netfilter/nf_reject.h>
9
10void nf_send_unreach(struct sk_buff *skb_in, int code, int hook);
11void nf_send_reset(struct net *net, struct sock *, struct sk_buff *oldskb,
12		   int hook);
13const struct tcphdr *nf_reject_ip_tcphdr_get(struct sk_buff *oldskb,
14					     struct tcphdr *_oth, int hook);
15struct iphdr *nf_reject_iphdr_put(struct sk_buff *nskb,
16				  const struct sk_buff *oldskb,
17				  __u8 protocol, int ttl);
18void nf_reject_ip_tcphdr_put(struct sk_buff *nskb, const struct sk_buff *oldskb,
19			     const struct tcphdr *oth);
20
21struct sk_buff *nf_reject_skb_v4_unreach(struct net *net,
22                                         struct sk_buff *oldskb,
23                                         const struct net_device *dev,
24                                         int hook, u8 code);
25struct sk_buff *nf_reject_skb_v4_tcp_reset(struct net *net,
26					   struct sk_buff *oldskb,
27					   const struct net_device *dev,
28					   int hook);
29
30
31#endif /* _IPV4_NF_REJECT_H */
32