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#ifndef __NET_IPV6_WRAPPER_H
#define __NET_IPV6_WRAPPER_H 1
#include <linux/version.h>
#include_next <net/ipv6.h>
#ifndef NEXTHDR_SCTP
#define NEXTHDR_SCTP 132 /* Stream Control Transport Protocol */
#endif
#ifndef HAVE_IP6_FH_F_SKIP_RH
enum {
IP6_FH_F_FRAG = (1 << 0),
IP6_FH_F_AUTH = (1 << 1),
IP6_FH_F_SKIP_RH = (1 << 2),
};
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0)
#define ipv6_skip_exthdr rpl_ipv6_skip_exthdr
extern int ipv6_skip_exthdr(const struct sk_buff *skb, int start,
u8 *nexthdrp, __be16 *frag_offp);
#endif
/* This function is upstream, but not the version which skips routing
* headers with 0 segments_left. We fixed it when we introduced
* IP6_FH_F_SKIP_RH.
*/
#define ipv6_find_hdr rpl_ipv6_find_hdr
extern int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
int target, unsigned short *fragoff, int *fragflg);
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)
static inline u32 ipv6_addr_hash(const struct in6_addr *a)
{
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
const unsigned long *ul = (const unsigned long *)a;
unsigned long x = ul[0] ^ ul[1];
return (u32)(x ^ (x >> 32));
#else
return (__force u32)(a->s6_addr32[0] ^ a->s6_addr32[1] ^
a->s6_addr32[2] ^ a->s6_addr32[3]);
#endif
}
#endif
#endif
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