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