include/linux/icmpv6.h

   1 #ifndef _LINUX_ICMPV6_H
   2 #define _LINUX_ICMPV6_H
   3
   4 #include <linux/skbuff.h>
   5 #include <uapi/linux/icmpv6.h>
   6
   7 static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb)
   8 {
   9         return (struct icmp6hdr *)skb_transport_header(skb);
  10 }
  11
  12 #include <linux/netdevice.h>
  13
  14 #if IS_ENABLED(CONFIG_IPV6)
  15 extern void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info);
  16
  17 typedef void ip6_icmp_send_t(struct sk_buff *skb, u8 type, u8 code, __u32 info,
  18                              const struct in6_addr *force_saddr);
  19 extern int inet6_register_icmp_sender(ip6_icmp_send_t *fn);
  20 extern int inet6_unregister_icmp_sender(ip6_icmp_send_t *fn);
  21 int ip6_err_gen_icmpv6_unreach(struct sk_buff *skb, int nhs, int type);
  22
  23 #else
  24
  25 static inline void icmpv6_send(struct sk_buff *skb,
  26                                u8 type, u8 code, __u32 info)
  27 {
  28
  29 }
  30 #endif
  31
  32 extern int                              icmpv6_init(void);
  33 extern int                              icmpv6_err_convert(u8 type, u8 code,
  34                                                            int *err);
  35 extern void                             icmpv6_cleanup(void);
  36 extern void                             icmpv6_param_prob(struct sk_buff *skb,
  37                                                           u8 code, int pos);
  38
  39 struct flowi6;
  40 struct in6_addr;
  41 extern void                             icmpv6_flow_init(struct sock *sk,
  42                                                          struct flowi6 *fl6,
  43                                                          u8 type,
  44                                                          const struct in6_addr *saddr,
  45                                                          const struct in6_addr *daddr,
  46                                                          int oif);
  47 #endif