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#ifndef _IPV6_H
#define _IPV6_H
#include <asm/types.h>
#include <linux/in6.h>
#include <endian.h>
#include <byteswap.h>
/* The latest drafts declared increase in minimal mtu up to 1280. */
#define IPV6_MIN_MTU 1280
/*
* Advanced API
* source interface/address selection, source routing, etc...
* *under construction*
*/
struct in6_pktinfo {
struct in6_addr ipi6_addr;
int ipi6_ifindex;
};
struct in6_ifreq {
struct in6_addr ifr6_addr;
__u32 ifr6_prefixlen;
int ifr6_ifindex;
};
#define IPV6_SRCRT_STRICT 0x01 /* this hop must be a neighbor */
#define IPV6_SRCRT_TYPE_0 0 /* IPv6 type 0 Routing Header */
/*
* routing header
*/
struct ipv6_rt_hdr {
__u8 nexthdr;
__u8 hdrlen;
__u8 type;
__u8 segments_left;
/*
* type specific data
* variable length field
*/
};
struct ipv6_opt_hdr {
__u8 nexthdr;
__u8 hdrlen;
/*
* TLV encoded option data follows.
*/
};
#define ipv6_destopt_hdr ipv6_opt_hdr
#define ipv6_hopopt_hdr ipv6_opt_hdr
/*
* routing header type 0 (used in cmsghdr struct)
*/
struct rt0_hdr {
struct ipv6_rt_hdr rt_hdr;
__u32 bitmap; /* strict/loose bit map */
struct in6_addr addr[0];
#define rt0_type rt_hdr.type;
};
/*
* IPv6 fixed header
*
* BEWARE, it is incorrect. The first 4 bits of flow_lbl
* are glued to priority now, forming "class".
*/
struct ipv6hdr {
#if defined(__LITTLE_ENDIAN)
__u8 priority:4,
version:4;
#elif defined(__BIG_ENDIAN)
__u8 version:4,
priority:4;
#endif
__u8 flow_lbl[3];
__u16 payload_len;
__u8 nexthdr;
__u8 hop_limit;
struct in6_addr saddr;
struct in6_addr daddr;
};
#endif
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