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Diffstat (limited to 'inc/flwd_net.h')
| -rw-r--r-- | inc/flwd_net.h | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/inc/flwd_net.h b/inc/flwd_net.h new file mode 100644 index 0000000..2651021 --- /dev/null +++ b/inc/flwd_net.h @@ -0,0 +1,389 @@ +#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 + |