]>
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1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_ICMPV6_H
3 #define _LINUX_ICMPV6_H
5 #include <linux/skbuff.h>
6 #include <linux/ipv6.h>
7 #include <uapi/linux/icmpv6.h>
9 static inline struct icmp6hdr
*icmp6_hdr(const struct sk_buff
*skb
)
11 return (struct icmp6hdr
*)skb_transport_header(skb
);
14 #include <linux/netdevice.h>
16 #if IS_ENABLED(CONFIG_IPV6)
18 typedef void ip6_icmp_send_t(struct sk_buff
*skb
, u8 type
, u8 code
, __u32 info
,
19 const struct in6_addr
*force_saddr
,
20 const struct inet6_skb_parm
*parm
);
21 void icmp6_send(struct sk_buff
*skb
, u8 type
, u8 code
, __u32 info
,
22 const struct in6_addr
*force_saddr
,
23 const struct inet6_skb_parm
*parm
);
24 #if IS_BUILTIN(CONFIG_IPV6)
25 static inline void __icmpv6_send(struct sk_buff
*skb
, u8 type
, u8 code
, __u32 info
,
26 const struct inet6_skb_parm
*parm
)
28 icmp6_send(skb
, type
, code
, info
, NULL
, parm
);
30 static inline int inet6_register_icmp_sender(ip6_icmp_send_t
*fn
)
32 BUILD_BUG_ON(fn
!= icmp6_send
);
35 static inline int inet6_unregister_icmp_sender(ip6_icmp_send_t
*fn
)
37 BUILD_BUG_ON(fn
!= icmp6_send
);
41 extern void __icmpv6_send(struct sk_buff
*skb
, u8 type
, u8 code
, __u32 info
,
42 const struct inet6_skb_parm
*parm
);
43 extern int inet6_register_icmp_sender(ip6_icmp_send_t
*fn
);
44 extern int inet6_unregister_icmp_sender(ip6_icmp_send_t
*fn
);
47 static inline void icmpv6_send(struct sk_buff
*skb
, u8 type
, u8 code
, __u32 info
)
49 __icmpv6_send(skb
, type
, code
, info
, IP6CB(skb
));
52 int ip6_err_gen_icmpv6_unreach(struct sk_buff
*skb
, int nhs
, int type
,
53 unsigned int data_len
);
55 #if IS_ENABLED(CONFIG_NF_NAT)
56 void icmpv6_ndo_send(struct sk_buff
*skb_in
, u8 type
, u8 code
, __u32 info
);
58 static inline void icmpv6_ndo_send(struct sk_buff
*skb_in
, u8 type
, u8 code
, __u32 info
)
60 struct inet6_skb_parm parm
= { 0 };
61 __icmpv6_send(skb_in
, type
, code
, info
, &parm
);
67 static inline void icmpv6_send(struct sk_buff
*skb
,
68 u8 type
, u8 code
, __u32 info
)
72 static inline void icmpv6_ndo_send(struct sk_buff
*skb
,
73 u8 type
, u8 code
, __u32 info
)
78 extern int icmpv6_init(void);
79 extern int icmpv6_err_convert(u8 type
, u8 code
,
81 extern void icmpv6_cleanup(void);
82 extern void icmpv6_param_prob(struct sk_buff
*skb
,
87 extern void icmpv6_flow_init(struct sock
*sk
,
90 const struct in6_addr
*saddr
,
91 const struct in6_addr
*daddr
,