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 
10 void nf_send_unreach(struct sk_buff *skb_in, int code, int hook);
11 void nf_send_reset(struct net *net, struct sock *, struct sk_buff *oldskb,
12 		   int hook);
13 const struct tcphdr *nf_reject_ip_tcphdr_get(struct sk_buff *oldskb,
14 					     struct tcphdr *_oth, int hook);
15 struct iphdr *nf_reject_iphdr_put(struct sk_buff *nskb,
16 				  const struct sk_buff *oldskb,
17 				  __u8 protocol, int ttl);
18 void nf_reject_ip_tcphdr_put(struct sk_buff *nskb, const struct sk_buff *oldskb,
19 			     const struct tcphdr *oth);
20 
21 struct 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);
25 struct 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