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[ICMP6]: Introduce icmp6_hdr()

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For consistency with all the other skb->h.raw accessors.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-03-13 14:03:22 -03:00 • committed by David S. Miller
parent 2c0fd387b0
commit cc70ab261c
5 changed files with 18 additions and 9 deletions
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9
include/linux/icmpv6.h
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@ -75,6 +75,15 @@ struct icmp6hdr {
#define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref
};
#ifdef __KERNEL__
#include <linux/skbuff.h>
static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb)
{
return (struct icmp6hdr *)skb->h.raw;
}
#endif
#define ICMPV6_ROUTER_PREF_LOW 0x3
#define ICMPV6_ROUTER_PREF_MEDIUM 0x0
#define ICMPV6_ROUTER_PREF_HIGH 0x1