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#ifndef _FLWD_NET_H_
#define _FLWD_NET_H_ 1
#include <stdint.h>
#include <sys/types.h>
#include <linux/if_ether.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <netinet/ip6.h>
#include <netinet/ip_icmp.h>
#include <netinet/in_systm.h>
#include <linux/ppp_defs.h>
/* ����һ��flwdģ�����õ�ͷ�ļ�, ��linux BSD������һ�� */
struct flwd_eth_hdr{
unsigned char h_dest[ETH_ALEN]; /* destination ethernet address */
unsigned char h_source[ETH_ALEN]; /* source ethernet address */
unsigned short h_proto; /* packet type ID */
}__attribute__((packed));
typedef struct flwd_eth_hdr flwd_eth_hdr_t;
typedef struct {
u_short ar_hrd; /* format of hardware address */
u_short ar_pro; /* format of protocol address */
u_char ar_hln; /* length of hardware address */
u_char ar_pln; /* length of protocol addres */
u_short ar_op; /* operation type */
/*
* These should implementation defined but I've hardcoded eth/IP.
*/
u_char ar_sha[6]; /* sender hardware address */
u_char ar_spa[4]; /* sender protocol address */
u_char ar_tha[6]; /* target hardware address */
u_char ar_tpa[4]; /* target protocol address */
}flwd_arp_hdr_t;
/*
* Structure of an internet header, naked of options.
*/
typedef struct
{
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned int ip_hl:4; /* header length */
unsigned int ip_v:4; /* version */
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned int ip_v:4; /* version */
unsigned int ip_hl:4; /* header length */
#endif
u_int8_t ip_tos; /* type of service */
u_short ip_len; /* total length */
u_short ip_id; /* identification */
u_short ip_off; /* fragment offset field */
#define IP_RF 0x8000 /* reserved fragment flag */
#define IP_DF 0x4000 /* dont fragment flag */
#define IP_MF 0x2000 /* more fragments flag */
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
u_int8_t ip_ttl; /* time to live */
u_int8_t ip_p; /* protocol */
u_short ip_sum; /* checksum */
struct in_addr ip_src, ip_dst; /* source and dest address */
}flwd_ipv4_hdr_t;
/*
* IPv6 packet header prototype, add by LiJia 2012-03-19.
*/
typedef struct{
u_int8_t ip6_flags[4]; /* version, traffic-class, flow-label */
u_int16_t ip6_payload_len; /* payload length, not contain header */
u_int8_t ip6_nxt_hdr; /* next header, same as protocol in IPv4 */
u_int8_t ip6_hop; /* hop limit, same as TTL in IPv4 */
struct in6_addr ip6_src; /* source address */
struct in6_addr ip6_dst; /* dest address */
}flwd_ipv6_hdr_t;
#define FLWD_IPV4_MULTICAST_ADDR(addr) (((addr&0xF0000000)==0xE0000000)?1:0)
/*
* ICMP packet header prototype. // from libnet-headers.h
*/
typedef struct
{
u_char icmp_type;
/*
* ICMP types.
*/
#ifndef ICMP_ECHOREPLY
#define ICMP_ECHOREPLY 0
#endif
#ifndef ICMP_UNREACH
#define ICMP_UNREACH 3
#endif
#ifndef ICMP_SOURCEQUENCH
#define ICMP_SOURCEQUENCH 4
#endif
#ifndef ICMP_REDIRECT
#define ICMP_REDIRECT 5
#endif
#ifndef ICMP_ECHO
#define ICMP_ECHO 8
#endif
#ifndef ICMP_ROUTERADVERT
#define ICMP_ROUTERADVERT 9
#endif
#ifndef ICMP_ROUTERSOLICIT
#define ICMP_ROUTERSOLICIT 10
#endif
#ifndef ICMP_TIMXCEED
#define ICMP_TIMXCEED 11
#endif
#ifndef ICMP_PARAMPROB
#define ICMP_PARAMPROB 12
#endif
#ifndef ICMP_TSTAMP
#define ICMP_TSTAMP 13
#endif
#ifndef ICMP_TSTAMPREPLY
#define ICMP_TSTAMPREPLY 14
#endif
#ifndef ICMP_IREQ
#define ICMP_IREQ 15
#endif
#ifndef ICMP_IREQREPLY
#define ICMP_IREQREPLY 16
#endif
#ifndef ICMP_MASKREQ
#define ICMP_MASKREQ 17
#endif
#ifndef ICMP_MASKREPLY
#define ICMP_MASKREPLY 18
#endif
u_char icmp_code;
/*
* ICMP codes.
*/
#ifndef ICMP_UNREACH_NET
#define ICMP_UNREACH_NET 0
#endif
#ifndef ICMP_UNREACH_HOST
#define ICMP_UNREACH_HOST 1
#endif
#ifndef ICMP_UNREACH_PROTOCOL
#define ICMP_UNREACH_PROTOCOL 2
#endif
#ifndef ICMP_UNREACH_PORT
#define ICMP_UNREACH_PORT 3
#endif
#ifndef ICMP_UNREACH_NEEDFRAG
#define ICMP_UNREACH_NEEDFRAG 4
#endif
#ifndef ICMP_UNREACH_SRCFAIL
#define ICMP_UNREACH_SRCFAIL 5
#endif
#ifndef ICMP_UNREACH_NET_UNKNOWN
#define ICMP_UNREACH_NET_UNKNOWN 6
#endif
#ifndef ICMP_UNREACH_HOST_UNKNOWN
#define ICMP_UNREACH_HOST_UNKNOWN 7
#endif
#ifndef ICMP_UNREACH_ISOLATED
#define ICMP_UNREACH_ISOLATED 8
#endif
#ifndef ICMP_UNREACH_NET_PROHIB
#define ICMP_UNREACH_NET_PROHIB 9
#endif
#ifndef ICMP_UNREACH_HOST_PROHIB
#define ICMP_UNREACH_HOST_PROHIB 10
#endif
#ifndef ICMP_UNREACH_TOSNET
#define ICMP_UNREACH_TOSNET 11
#endif
#ifndef ICMP_UNREACH_TOSHOST
#define ICMP_UNREACH_TOSHOST 12
#endif
#ifndef ICMP_UNREACH_FILTER_PROHIB
#define ICMP_UNREACH_FILTER_PROHIB 13
#endif
#ifndef ICMP_UNREACH_HOST_PRECEDENCE
#define ICMP_UNREACH_HOST_PRECEDENCE 14
#endif
#ifndef ICMP_UNREACH_PRECEDENCE_CUTOFF
#define ICMP_UNREACH_PRECEDENCE_CUTOFF 15
#endif
#ifndef ICMP_REDIRECT_NET
#define ICMP_REDIRECT_NET 0
#endif
#ifndef ICMP_REDIRECT_HOST
#define ICMP_REDIRECT_HOST 1
#endif
#ifndef ICMP_REDIRECT_TOSNET
#define ICMP_REDIRECT_TOSNET 2
#endif
#ifndef ICMP_REDIRECT_TOSHOST
#define ICMP_REDIRECT_TOSHOST 3
#endif
#ifndef ICMP_TIMXCEED_INTRANS
#define ICMP_TIMXCEED_INTRANS 0
#endif
#ifndef ICMP_TIMXCEED_REASS
#define ICMP_TIMXCEED_REASS 1
#endif
#ifndef ICMP_PARAMPROB_OPTABSENT
#define ICMP_PARAMPROB_OPTABSENT 1
#endif
u_short icmp_sum;
union
{
struct
{
u_short id;
u_short seq;
}echo;
#undef icmp_id
#undef icmp_seq
#define icmp_id hun.echo.id
#define icmp_seq hun.echo.seq
u_long gateway;
struct
{
u_short pad;
u_short mtu;
}frag;
}hun;
union
{
struct
{
n_time its_otime;
n_time its_rtime;
n_time its_ttime;
}ts;
struct
{
struct ip idi_ip;
/* options and then 64 bits of data */
}ip;
u_long mask;
char data[1];
#undef icmp_mask
#define icmp_mask dun.mask
#undef icmp_data
#define icmp_data dun.data
#undef icmp_otime
#define icmp_otime dun.ts.its_otime
#undef icmp_rtime
#define icmp_rtime dun.ts.its_rtime
#undef icmp_ttime
#define icmp_ttime dun.ts.its_ttime
}dun;
}flwd_icmp_hdr_t;
/* 2012-04-10 LiJia add,
��ICMPͷ��������ڸ��ӣ�
��ICMPЭ��ͷ���������������ECHO_REQUEST��ECHO_REPLAY.
*/
typedef struct{
unsigned char icmp_type;
unsigned char icmp_code;
unsigned short icmp_cksum;
unsigned short icd_id;
unsigned short icd_seq;
//char echo_data[......];
}flwd_simple_icmp_hdr_t;
#ifndef TH_FIN
#define TH_FIN 0x01
#endif
#ifndef TH_SYN
#define TH_SYN 0x02
#endif
#ifndef TH_RST
#define TH_RST 0x04
#endif
#ifndef TH_PUSH
#define TH_PUSH 0x08
#endif
#ifndef TH_ACK
#define TH_ACK 0x10
#endif
#ifndef TH_URG
#define TH_URG 0x20
#endif
typedef struct{
u_int16_t th_sport; /* source port */
u_int16_t th_dport; /* destination port */
u_int32_t th_seq; /* sequence number */
u_int32_t th_ack; /* acknowledgement number */
#if __BYTE_ORDER == __LITTLE_ENDIAN
u_int8_t th_x2:4, /* (unused) */
th_off:4; /* data offset */
#elif __BYTE_ORDER == __BIG_ENDIAN
u_int8_t th_off:4, /* data offset */
th_x2:4; /* (unused) */
#else
#error "Please check <endian.h>"
#endif
u_int8_t th_flags; /* control flags */
u_int16_t th_win; /* window */
u_int16_t th_sum; /* checksum */
u_int16_t th_urp; /* urgent pointer */
}flwd_tcp_hdr_t;
/*
* UDP packet header prototype.
*/
typedef struct{
u_int16_t uh_sport; /* soure port */
u_int16_t uh_dport; /* destination port */
u_int16_t uh_ulen; /* length */
u_int16_t uh_sum; /* checksum */
}flwd_udp_hdr_t;
/* ��vxlan���� */
typedef struct{
unsigned char flags;
/*------------byte delim -------*/
unsigned char reserved[3];
/*--------int delim -------*/
unsigned char vlan_id_half_high;
unsigned char link_layer_type : 4; /* ���㱨�ķ�װ��ʽ */
unsigned char vlan_id_half_low : 4;
unsigned int online_test : 1;
unsigned int link_id : 6;
unsigned int dir : 1;
unsigned int r7 : 1;
unsigned int r6 : 1;
unsigned int r5 : 1;
unsigned int r4 : 1;
unsigned int vni_flag : 1;
unsigned int r2 : 1;
unsigned int r1 : 1;
unsigned int r0 : 1;
}__vxlan_standard_hdr_t;
/*
�˽ṹ�������vxlan(RFC7348) __vxlan_standard_hdr_t ��ͬ, ʹ����ijЩԤ���ֶ�,
������access��forward����֮���ڲ�ͨѶ, ����������gdev���, ����ijЩֵ��������ʹ��.
*/
typedef struct{
unsigned char flags;
/*------------byte delim -------*/
unsigned char reserved[3];
/*--------int delim -------*/
unsigned char vlan_id_half_high;
unsigned char link_layer_type : 4; /* ���㱨�ķ�װ��ʽ */
unsigned char vlan_id_half_low : 4;
unsigned int online_test : 1;
unsigned int link_id : 6;
unsigned int dir : 1;
unsigned int r7 : 1;
unsigned int r6 : 1;
unsigned int r5 : 1;
unsigned int r4 : 1;
unsigned int vni_flag : 1;
unsigned int r2 : 1;
unsigned int r1 : 1;
unsigned int first_pkt_per_stream : 1; /* �˱�������, ��ʾ��һ�������װ�, ����access֪ͨfwd���� */
}flwd_vxlan_hdr_t;
#define FLWD_VXLAN_OUTER_PACKET_LEN (sizeof(flwd_eth_hdr_t)+sizeof(flwd_ipv4_hdr_t)+sizeof(flwd_udp_hdr_t) + sizeof(flwd_vxlan_hdr_t))
#endif
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