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#ifndef __DEAL_IPV6_H_
#define __DEAL_IPV6_H_
#include <netinet/ip6.h>
#define IPV6_DEBUG (0)
#define IPV6_FRAG_DUMP (1 && IPV6_DEBUG)
#define IPV6_MAXPLEN (65535)
#define IPV6_FRAG_RESERVED_HDR_LEN (40) /* Ԥ����һ��IPv6��Ƭͷ������ */
//#define IPV6_FRAG_TIMEOUT (60) /* ���鳬ʱʱ�� */
/*
2015-12-02 lijia modify,
��ȻRFC�涨, 60�������з�Ƭ������ɾ��ǺϷ���,
���ʵ�����, IPv6��Ƭ�����10���ڻ�δ�������, ����Ϊ�ǹ�����Ϊ��, ֱ��free.
*/
#define IPV6_FRAG_TIMEOUT (10) /* ���鳬ʱʱ�� */
#define IPV6_FRAG_MEM_FREE_ONCE (512*1024) /* ÿ���ͷ��ڴ����� */
#define IPV6_FRAG_MEM_HIGH_THRESH (16*1024*1024) /* �ڴ����� */
#define IPV6_FRAG_NUM_PER_IPQ (100) /* ͬһIPQ����Ƭ���� */
#if IPV6_DEBUG
#define IPV6_PRINT(fmt, args...) printf(fmt, ##args)
#else
#define IPV6_PRINT(fmt, args...)
#endif
struct simple_ip6_hdr
{
unsigned char ip6_flags[4]; /* version, traffic-class, flow-label */
u_int16_t ip6_payload_len; /* payload length, not contain header */
unsigned char ip6_nxt_hdr; /* next header, same as protocol in IPv4 */
unsigned char ip6_hop; /* hop limit, same as TTL in IPv4 */
struct in6_addr ip6_src; /* source address */
struct in6_addr ip6_dst; /* dest address */
};
/*
* NextHeader field of IPv6 header
*/
#define NEXTHDR_HOP 0 /* Hop-by-hop option header. */
#define NEXTHDR_IPIP 4 /* IPIP header. */
#define NEXTHDR_TCP 6 /* TCP segment. */
#define NEXTHDR_UDP 17 /* UDP message. */
#define NEXTHDR_IPV6 41 /* IPv6 in IPv6 */
#define NEXTHDR_ROUTING 43 /* Routing header. */
#define NEXTHDR_FRAGMENT 44 /* Fragmentation/reassembly header. */
#define NEXTHDR_ESP 50 /* Encapsulating security payload. */
#define NEXTHDR_AUTH 51 /* Authentication header. */
#define NEXTHDR_ICMP 58 /* ICMP for IPv6. */
#define NEXTHDR_NONE 59 /* No next header */
#define NEXTHDR_DEST 60 /* Destination options header. */
#define NEXTHDR_MOBILITY 135 /* Mobility header. */
struct ipv6_opt_hdr{
unsigned char nexthdr;
unsigned char hdrlen;
/*
* TLV encoded option data follows.
*/
} __attribute__((packed)); /* required for some archs */
/*
* Hop-By-Hop header
*/
struct ipv6_hop_hdr{
unsigned char nexthdr;
unsigned char hdrlen;
};
/*
* fragmentation header
*/
#define IPv6_FRAG_ISF (1) /* ������һ����Ƭ�� */
#define IPv6_FRAG_NEW (2) /* ���յ����з�Ƭ��������ɵ��°� */
#define IP6_MF (0x0001)
struct ipv6_frag_hdr{
unsigned char nexthdr;
unsigned char reserved;
unsigned short frag_off;
unsigned int identification;
};
struct ipv6_frag_key{
unsigned int identification; /* ���п��ܲ�ͬ��ֵ���ڽṹ��ǰ�棬�Ƚ�ʱ���һЩ */
int __pad__; /* ����ṹ8�ֽڶ��� */
struct in6_addr ip6_src; /* source address */
struct in6_addr ip6_dst; /* dest address */
struct streaminfo_private *pfstream_pr;
};
struct ipv6_frag_private{
unsigned char raw_next_hdr; /* ԭʼIP���ĵ�һ���ɷ�Ƭ����ͷ������ */
int unfragmentable_len; /* ԭʼIP���IJ��ɷ�Ƭ���ֳ��� */
};
#endif
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