2d7a3b276b
For better traceroute/mtr support for SIT and GRE tunnels, we translate IPV4 ICMP ICMP_TIME_EXCEEDED to ICMPV6_TIME_EXCEED We also have to translate the IPv4 source IP address of ICMP message to IPv6 v4mapped. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
#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 <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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extern void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info);
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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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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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int ip6_err_gen_icmpv6_unreach(struct sk_buff *skb, int nhs, int type);
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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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#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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#endif
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