123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114 |
- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _LINUX_ICMPV6_H
- #define _LINUX_ICMPV6_H
- #include <linux/skbuff.h>
- #include <linux/ipv6.h>
- #include <uapi/linux/icmpv6.h>
- static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb)
- {
- return (struct icmp6hdr *)skb_transport_header(skb);
- }
- #include <linux/netdevice.h>
- #if IS_ENABLED(CONFIG_IPV6)
- typedef void ip6_icmp_send_t(struct sk_buff *skb, u8 type, u8 code, __u32 info,
- const struct in6_addr *force_saddr,
- const struct inet6_skb_parm *parm);
- void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info,
- const struct in6_addr *force_saddr,
- const struct inet6_skb_parm *parm);
- #if IS_BUILTIN(CONFIG_IPV6)
- static inline void __icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info,
- const struct inet6_skb_parm *parm)
- {
- icmp6_send(skb, type, code, info, NULL, parm);
- }
- static inline int inet6_register_icmp_sender(ip6_icmp_send_t *fn)
- {
- BUILD_BUG_ON(fn != icmp6_send);
- return 0;
- }
- static inline int inet6_unregister_icmp_sender(ip6_icmp_send_t *fn)
- {
- BUILD_BUG_ON(fn != icmp6_send);
- return 0;
- }
- #else
- extern void __icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info,
- const struct inet6_skb_parm *parm);
- extern int inet6_register_icmp_sender(ip6_icmp_send_t *fn);
- extern int inet6_unregister_icmp_sender(ip6_icmp_send_t *fn);
- #endif
- static inline void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
- {
- __icmpv6_send(skb, type, code, info, IP6CB(skb));
- }
- int ip6_err_gen_icmpv6_unreach(struct sk_buff *skb, int nhs, int type,
- unsigned int data_len);
- #if IS_ENABLED(CONFIG_NF_NAT)
- void icmpv6_ndo_send(struct sk_buff *skb_in, u8 type, u8 code, __u32 info);
- #else
- static inline void icmpv6_ndo_send(struct sk_buff *skb_in, u8 type, u8 code, __u32 info)
- {
- struct inet6_skb_parm parm = { 0 };
- __icmpv6_send(skb_in, type, code, info, &parm);
- }
- #endif
- #else
- static inline void icmpv6_send(struct sk_buff *skb,
- u8 type, u8 code, __u32 info)
- {
- }
- static inline void icmpv6_ndo_send(struct sk_buff *skb,
- u8 type, u8 code, __u32 info)
- {
- }
- #endif
- extern int icmpv6_init(void);
- extern int icmpv6_err_convert(u8 type, u8 code,
- int *err);
- extern void icmpv6_cleanup(void);
- extern void icmpv6_param_prob_reason(struct sk_buff *skb,
- u8 code, int pos,
- enum skb_drop_reason reason);
- struct flowi6;
- struct in6_addr;
- extern void icmpv6_flow_init(struct sock *sk,
- struct flowi6 *fl6,
- u8 type,
- const struct in6_addr *saddr,
- const struct in6_addr *daddr,
- int oif);
- static inline void icmpv6_param_prob(struct sk_buff *skb, u8 code, int pos)
- {
- icmpv6_param_prob_reason(skb, code, pos,
- SKB_DROP_REASON_NOT_SPECIFIED);
- }
- static inline bool icmpv6_is_err(int type)
- {
- switch (type) {
- case ICMPV6_DEST_UNREACH:
- case ICMPV6_PKT_TOOBIG:
- case ICMPV6_TIME_EXCEED:
- case ICMPV6_PARAMPROB:
- return true;
- }
- return false;
- }
- #endif
|