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                                unsigned int data_len);
  23
  24 #else
  25
  26 static inline void icmpv6_send(struct sk_buff *skb,
  27                                u8 type, u8 code, __u32 info)
  28 {
  29
  30 }
  31 #endif
  32
  33 extern int                              icmpv6_init(void);
  34 extern int                              icmpv6_err_convert(u8 type, u8 code,
  35                                                            int *err);
  36 extern void                             icmpv6_cleanup(void);
  37 extern void                             icmpv6_param_prob(struct sk_buff *skb,
  38                                                           u8 code, int pos);
  39
  40 struct flowi6;
  41 struct in6_addr;
  42 extern void                             icmpv6_flow_init(struct sock *sk,
  43                                                          struct flowi6 *fl6,
  44                                                          u8 type,
  45                                                          const struct in6_addr *saddr,
  46                                                          const struct in6_addr *daddr,
  47                                                          int oif);
  48 #endif