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 49