include/net/netfilter/ipv4/nf_reject.h

   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 */