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common-tools-tcpdump-mesa/mesa_net.h

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支持-g参数, 可以按最内层IP,PORT过滤, 支持BPF过滤规则.
2018-11-14 21:09:41 +08:00
#ifndef _MESA_NET_H_
#define _MESA_NET_H_
#include <stdio.h>
#include <endian.h>
#include <netinet/in_systm.h>
#include "netdissect.h"
#include "ip.h"
#include "ip6.h"
#include "tcp.h"
#include "udp.h"
#ifdef __cplusplus
extern "C"
{
#endif
#define BYTE_ALIGNED(n) __attribute__((packed, aligned(n)))
#define SENDPACKET_ARP_H 0x1c /* ARP header: 28 bytes */
#define SENDPACKET_ETH_H 0xe /* Etherner header: 14 bytes */
#define SENDPACKET_IP_H 0x14 /* IP header: 20 bytes */
/* See sendpacket-ospf.h for OSPF related header sizes */
#define SENDPACKET_RIP_H 0x18 /* RIP header base: 24 bytes */
#define SENDPACKET_TCP_H 0x14 /* TCP header: 20 bytes */
#define SENDPACKET_UDP_H 0x8 /* UDP header: 8 bytes */
/*
* Ethernet packet header prototype. Too many O/S's define this differently.
* Easy enough to solve that and define it here.
*/
#ifndef ETHER_ADDR_LEN
#define ETHER_ADDR_LEN 6
#endif
#define ETHERTYPE_PUP 0x0200 /* PUP protocol */
#define ETHERTYPE_IP 0x0800 /* IP protocol */
#define ETHERTYPE_IPv6 0x86dd /* IPv6 protocol */
#define ETHERTYPE_ARP 0x0806 /* Addr. resolution protocol */
#define ETHERTYPE_REVARP 0x8035 /* reverse Addr. resolution protocol */
#define ETHERTYPE_VLAN 0x8100 /* IEEE 802.1Q VLAN tagging */
#define ETHERTYPE_LOOPBACK 0x9000 /* used to test interfaces */
#define ETH_P_MAC_IN_MAC 0x88A8 /* pangu<67><75>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD>88a8<61><38><EFBFBD><EFBFBD>, <20><><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD>MAC_IN_MAC<41><43><EFBFBD>ݰ<EFBFBD> */
#define ETHERTYPE_PANGU_MAC_IN_MAC 0x88A8 /* 2018-08-16 lijia add, for pangu MAC-in-MAC */
#if 0
#define ETHERTYPE_IP_NET 0x0008 /* IP protocol network order */
#define ETHERTYPE_IPv6_NET 0xdd86 /* IPv6 protocol network order */
#define ETHERTYPE_VLAN_NET 0x0081 /* IEEE 802.1Q VLAN tagging network order*/
#define ETH_P_PPP_SES_NET 0x6488 /* PPPoE session messages network order */
#define ETH_P_MPLS_UC_NET 0x4788 /* MPLS Unicast traffic network order */
#define ETH_P_ARP_NET 0x0608 /* Address Resolution packet network order */
#endif
#define ETHERNET_HDR_LEN (14)
struct mesa_ethernet_hdr
{
u_int8_t ether_dhost[ETHER_ADDR_LEN]; /* destination ethernet address */
u_int8_t ether_shost[ETHER_ADDR_LEN]; /* source ethernet address */
u_int16_t ether_type; /* packet type ID */
}BYTE_ALIGNED(1);
/*
* IPv4 packet header prototype.
*/
#ifndef IP_RF
#define IP_RF 0x8000 /* reserved fragment flag */
#endif
#ifndef IP_DF
#define IP_DF 0x4000 /* dont fragment flag */
#endif
#ifndef IP_MF
#define IP_MF 0x2000 /* more fragments flag */
#endif
#ifndef IP_OFFMASK
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
#endif
#define IPPROTO_L2TPV3 (115) /* L2TPv3, RFC3931-page17 */
struct mesa_ip4_hdr
{
#if __BYTE_ORDER == __LITTLE_ENDIAN
u_int8_t ip_hl:4, /* header length */
ip_v:4; /* version */
#elif __BYTE_ORDER == __BIG_ENDIAN
u_int8_t ip_v:4, /* version */
ip_hl:4; /* header length */
#else
#error "Please check <endian.h>"
#endif
u_int8_t ip_tos; /* type of service */
u_int16_t ip_len; /* total length */
u_int16_t ip_id; /* identification */
u_int16_t ip_off;
u_int8_t ip_ttl; /* time to live */
u_int8_t ip_p; /* protocol */
u_int16_t ip_sum; /* checksum */
struct in_addr ip_src, ip_dst; /* source and dest address */
};
/*
* ARP packet header prototype. Too many O/S's define this differently.
* Easy enough to solve that and define it here.
*/
#define ARPOP_REQUEST 1 /* req to resolve address */
#define ARPOP_REPLY 2 /* resp to previous request */
#define ARPOP_REVREQUEST 3 /* req protocol address given hardware */
#define ARPOP_REVREPLY 4 /* resp giving protocol address */
#define ARPOP_INVREQUEST 8 /* req to identify peer */
#define ARPOP_INVREPLY 9 /* resp identifying peer */
#define ARPHRD_ETHER 1 /* ethernet hardware format */
struct mesa_arp_hdr
{
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 */
};
/*
* IPv6 packet header prototype, add by LiJia 2012-03-19.
*/
struct mesa_ip6_hdr
{
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 */
};
struct mesa_icmp_echo_hdr{
unsigned char icmp_type;
unsigned char icmp_code;
unsigned short icmp_cksum;
unsigned short icd_id;
unsigned short icd_seq;
//char echo_data[];
};
/*
* ICMP packet header prototype. // from libnet-headers.h
*/
struct mesa_icmp_hdr
{
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;
};
/*
* TCP packet header prototype.
*/
#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
struct mesa_tcp_hdr
{
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 */
};
/*
* UDP packet header prototype.
*/
struct mesa_udp_hdr
{
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 */
};
#define PPPOE_HDR_LEN (sizeof(struct mesa_pppoe_session_hdr))
#define PPP_PROTOCOL_PAD (0x0001)
#define PPP_PROTOCOL_IPv4 (0x0021)
#define PPP_PROTOCOL_PAP (0xC023)
#define PPP_PROTOCOL_CHAP (0xC223)
#define PPP_PROTOCOL_IPv6 (0x0057)
#define PPP_COMPRESS_DATA (0x00FD)
#define PPP_PROTOCOL_LCP (0xC021)
#define PPP_PROTOCOL_CCP (0x80FD)
#define PPP_PROTOCOL_IPCP (0x8021)
struct mesa_pppoe_session_hdr{
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned int ver:4;
unsigned int type:4;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned int type:4;
unsigned int ver:4;
#else
#error "Please check <endian.h>"
#endif
unsigned char code;
unsigned short session_id;
unsigned short len;
/* to do:
pppӦ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ϊ<EFBFBD>˼򻯴<EFBFBD><EFBFBD><EFBFBD>, ǿ<EFBFBD>ƽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>PPPOE_SES<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>,
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>PPPЭ<EFBFBD>̹<EFBFBD><EFBFBD><EFBFBD>, <EFBFBD>˽ṹ<EFBFBD><EFBFBD>Ҫ<EFBFBD>Ķ<EFBFBD>.
*/
unsigned short ppp_protocol;
}BYTE_ALIGNED(1);
struct mesa_ppp_hdr{
unsigned char address;
unsigned char control;
unsigned short protocol;
}BYTE_ALIGNED(1);
#define PPP_LCP_CODE_REQUEST (1)
#define PPP_LCP_CODE_ACK (2)
#define PPP_LCP_CODE_NAK (3)
#define PPP_LCP_CODE_REJECT (4)
#define PPP_LCP_CODE_TERMINATE_REQ (5)
#define PPP_LCP_CODE_TERMINATE_ACK (6)
/* refer to RFC1661 */
#define PPP_LCP_OPT_RESERVED (0)
#define PPP_LCP_OPT_MAX_RCV_UNIT (1)
#define PPP_LCP_OPT_AUTH_PRO (3)
#define PPP_LCP_OPT_QA_PRO (4)
#define PPP_LCP_OPT_MAGIC (5)
#define PPP_LCP_OPT_PRO_FIELD_COMPRESS (7)
#define PPP_LCP_OPT_ADDR_CTRL_FIELD_COMPRESS (8)
#define PPP_LCP_OPT_AUTH_PRO_PAP (0xC023)
#define PPP_LCP_OPT_AUTH_PRO_CHAP (0xC223)
#define PPP_LCP_OPT_AUTH_PRO_CHAP_ALGO_MS_CHAP_V2 (0x81)
#define PPP_LCP_OPT_AUTH_PRO_CHAP_ALGO_CHAP_MD5 (0x05)
/* refer to RFC1962 Page6 */
#define PPP_CCP_OPT_OUI (0)
#define PPP_CCP_OPT_MS_PPC (18)
struct mesa_ppp_lcp_ack_hdr{ /* RFC1661-Page29 */
unsigned char code;
unsigned char identifier;
unsigned short length;
}BYTE_ALIGNED(1);
struct mesa_ppp_ccp_ack_hdr{ /* RFC1661-Page29 */
unsigned char code;
unsigned char identifier;
unsigned short length;
}BYTE_ALIGNED(1);
#define PPP_CHAP_CHALLENGE (1)
#define PPP_CHAP_RESPONSE (2)
#define PPP_CHAP_SUCCESS (3)
#define PPP_CHAP_FAILURE (4)
struct mesa_ppp_chap_hdr{
unsigned char code;
unsigned char identifier;
unsigned short length;
}BYTE_ALIGNED(1);
struct mesa_ppp_ipcp_ack_hdr{
unsigned char code;
unsigned char identifier;
unsigned short length;
}BYTE_ALIGNED(1);
enum pptp_control_message_type{
PPTP_CTRL_START_CONN_REQ = 1,
PPTP_CTRL_START_CONN_REPLY = 2,
PPTP_CTRL_STOP_CONN_REQ = 3,
PPTP_CTRL_STOP_CONN_REPLY = 4,
PPTP_CTRL_ECHO_REQ = 5,
PPTP_CTRL_ECHO_REPLY = 6,
PPTP_CTRL_OUT_GO_REQ = 7,
PPTP_CTRL_OUT_GO_REPLY = 8,
PPTP_CTRL_IN_CALL_REQ = 9,
PPTP_CTRL_IN_CALL_REPLY = 10,
PPTP_CTRL_IN_CALL_CONN = 11,
PPTP_CTRL_CALL_CLEAR_REQ = 12,
PPTP_CTRL_CALL_DISCONN_NOTIFY = 13,
PPTP_CTRL_WAN_ERROR_NOTIFY = 14,
PPTP_CTRL_SET_LINK_INFO = 15,
};
struct mesa_pptp_control_hdr{
unsigned short length; /* ȫ<><C8AB><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7> */
unsigned short pptp_message_type;
unsigned int magic_cookie;
unsigned short control_message_type;
char ignore_bytes[0]; /* <20><><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><D6B6>ݲ<EFBFBD><DDB2><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>һ<EFBFBD><D2BB> */
};
struct mesa_vlan_hdr{
unsigned short pri_cfi_id;
unsigned short type;
};
struct mesa_vlan_detail_hdr{
unsigned int priority:3;
unsigned int del_flag:1;
unsigned int vlan_id:12;
unsigned short type;
};
/* 2018-08-28 lijia add, for pangu <20><>Ŀmac_in_mac<61><63><EFBFBD><EFBFBD> */
struct mesa_mac_in_mac_net_hdr{
unsigned int route_dir:1;
unsigned int link_id:3;
unsigned int dev_id:6;
unsigned int region_id:5;
unsigned int __pad1:1;
unsigned int encap_type:4;
unsigned int __pad2:20;
unsigned int __pad3:8;
};
struct mesa_gre_base_hdr_v0{
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned char recur:3;
unsigned char strict_src_route_flag:1;
unsigned char seq_flag:1;
unsigned char key_flag:1;
unsigned char route_flag:1;
unsigned char checksum_flag:1;
unsigned char version:3;
unsigned char flags:5; /* version 0 flags is 5 bit */
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned char checksum_flag:1;
unsigned char route_flag:1;
unsigned char key_flag:1;
unsigned char seq_flag:1;
unsigned char strict_src_route_flag:1;
unsigned char recur:3;
unsigned char flags:5; /* version 0 flags is 5 bit */
unsigned char version:3;
#else
#error "Please check <endian.h>"
#endif
unsigned short protocol;
};
struct mesa_gre_base_hdr_v1{
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned char recur:3;
unsigned char strict_src_route_flag:1;
unsigned char seq_flag:1;
unsigned char key_flag:1;
unsigned char route_flag:1;
unsigned char checksum_flag:1;
unsigned char version:3;
unsigned char flags:4; /* version 1 flags is 4 bit */
unsigned char ack_flag:1;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned char checksum_flag:1;
unsigned char route_flag:1;
unsigned char key_flag:1;
unsigned char seq_flag:1;
unsigned char strict_src_route_flag:1;
unsigned char recur:3;
unsigned char ack_flag:1;
unsigned char flags:4; /* version 1 flags is 4 bit */
unsigned char version:3;
#else
#error "Please check <endian.h>"
#endif
unsigned short protocol;
};
#define GRE_SRE_MAX_LEN (256) /* <20><><EFBFBD><EFBFBD><EFBFBD>Ϊһ<CEAA><D2BB><EFBFBD>ֽ<EFBFBD>, 256 */
struct gre_source_route_entry_hdr{
unsigned short address_family;
unsigned char sre_offset;
unsigned char sre_length;
unsigned char sre_entry_list[GRE_SRE_MAX_LEN];
};
/* <20><><EFBFBD>п<EFBFBD><D0BF>ܵ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>, <20><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>mesa_gre_base_hdr<64><72><EFBFBD><EFBFBD>bit<69><74>ֵ, <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ */
struct mesa_gre_extend_hdr{
unsigned short checksum; //version0
unsigned short offset; //version0, if checksum present, then offset also present
unsigned short payload_len; //version1
unsigned short call_id; //version1
unsigned int key; //version0
unsigned int seq_num; //version0 and version1
unsigned int ack_num; //version1
//struct gre_source_route_entry_hdr sre_list;
};
struct mesa_gre_hdr{
/* version0<6E><30>version1<6E><31>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>, version<6F>ֶ<EFBFBD>ʱһ<CAB1>µ<EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>, Ĭ<><C4AC>ʹ<EFBFBD><CAB9>v0<76><30>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD> */
struct mesa_gre_base_hdr_v0 gre_base;
struct mesa_gre_extend_hdr gre_extend;
};
#define MPLS_LABEL_MASK (0xFFFFF000)
#define MPLS_EXP_MASK (0x00000E00)
#define MPLS_BLS_MASK (0x00000100)
#define MPLS_TTL_MASK (0x000000FF)
struct mesa_mpls_hdr{
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned short mpls_label_low;
unsigned char mpls_bls:1; /* bottom of label stack */
unsigned char mpls_exp:3;
unsigned char mpls_label_high:4;
unsigned char mpls_ttl;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned char mpls_ttl;
unsigned char mpls_label_high:4;
unsigned char mpls_exp:3;
unsigned char mpls_bls:1; /* bottom of label stack */
unsigned short mpls_label_low;
#else
#error "Please check <endian.h>"
#endif
};
#define L2TP_REGISTERED_IP_PRO (115)
#define L2TP_REGISTERED_PORT (1701)
#define L2TP_HDR_TYPE_DATA (0)
#define L2TP_HDR_TYPE_CONTROL (1)
struct l2tp_hdr_v2{
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned char priority:1;
unsigned char offset_present:1;
unsigned char reserved2:1;
unsigned char seq_present:1;
unsigned char reserved1:2;
unsigned char length_present:1;
unsigned char type:1;
unsigned char version:4;
unsigned char reserved3:4;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned char reserved3:4;
unsigned char version:4;
unsigned char type:1;
unsigned char length_present:1;
unsigned char reserved1:2;
unsigned char seq_present:1;
unsigned char reserved2:1;
unsigned char offset_present:1;
unsigned char priority:1;
#else
#error "Please check <endian.h>"
#endif
};
/* refer to RFC2661-Page12 */
#define L2TP_CTRL_MSG_RESERVED0 (0)
#define L2TP_CTRL_MSG_SCCRQ (1)
#define L2TP_CTRL_MSG_SCCRP (2)
#define L2TP_CTRL_MSG_SCCCN (3)
#define L2TP_CTRL_MSG_STOP_CCN (4)
#define L2TP_CTRL_MSG_RESERVED5 (5)
#define L2TP_CTRL_MSG_HELLO (6)
#define L2TP_CTRL_MSG_OCRQ (7)
#define L2TP_CTRL_MSG_OCRP (8)
#define L2TP_CTRL_MSG_OCCN (9)
#define L2TP_CTRL_MSG_ICRQ (10)
#define L2TP_CTRL_MSG_ICRP (11)
#define L2TP_CTRL_MSG_ICCN (12)
#define L2TP_CTRL_MSG_RESERVED13 (13)
#define L2TP_CTRL_MSG_CDN (14)
#define L2TP_CTRL_MSG_WEN (15)
#define L2TP_CTRL_MSG_SLI (16)
#define L2TP_AVP_GET_LEN(u) (ntohs(u) & 0x3F)
struct l2tp_avp{
unsigned short M_H_rsvd_len_union;
unsigned short vendor_id;
unsigned short attribute_type;
}BYTE_ALIGNED(1);
/* RFC2408-Page23 */
#define ISAKMP_PAYLOAD_TYPE_NONE (0)
#define ISAKMP_PAYLOAD_TYPE_SA (1)
#define ISAKMP_PAYLOAD_TYPE_PROPOSAL (2)
#define ISAKMP_PAYLOAD_TYPE_TRANSFORM (3)
#define ISAKMP_PAYLOAD_TYPE_KEY_EXCHANGE (4)
#define ISAKMP_PAYLOAD_TYPE_ID (5)
#define ISAKMP_PAYLOAD_TYPE_CERT (6)
#define ISAKMP_PAYLOAD_TYPE_CR (7)
#define ISAKMP_PAYLOAD_TYPE_HASH (8)
#define ISAKMP_PAYLOAD_TYPE_SIG (9)
#define ISAKMP_PAYLOAD_TYPE_NONCE (10)
#define ISAKMP_PAYLOAD_TYPE_NOTIFY (11)
#define ISAKMP_PAYLOAD_TYPE_DELETE (12)
#define ISAKMP_PAYLOAD_TYPE_VENDOR_ID (13)
#define ISAKMP_PAYLOAD_TYPE_RESERVED_BEGIN (14) /* 14 - 127 */
#define ISAKMP_PAYLOAD_TYPE_RESERVED_END (127) /* 14 - 127 */
#define ISAKMP_PAYLOAD_TYPE_PRIVATE_USE_BEGIN (128) /* 128-255 */
#define ISAKMP_PAYLOAD_TYPE_PRIVATE_USE_END (255) /* 128-255 */
/* RFC2408-Page23 */
#define ISAKMP_EXCHANGE_TYPE_NONE (0)
#define ISAKMP_EXCHANGE_TYPE_BASE (1)
#define ISAKMP_EXCHANGE_TYPE_ID_PROT (2) /* RFC-2409 page8, main mode is instantiation os ISAKMP Identity Protect Exchange */
#define ISAKMP_EXCHANGE_TYPE_AUTH (3)
#define ISAKMP_EXCHANGE_TYPE_AGGRESS (4)/* RFC-2409 page8, Aggressive mode is instantiation os ISAKMP Aggressive Exchange */
#define ISAKMP_EXCHANGE_TYPE_INFO (5)
#define ISAKMP_EXCHANGE_TYPE_FEATURE_USE_BEGIN (6) /* 6-31<33><31>ֵ<EFBFBD>ݲ<EFBFBD><DDB2><EFBFBD><EFBFBD><EFBFBD> */
#define ISAKMP_EXCHANGE_TYPE_FEATURE_USE_END (31) /* 6-31<33><31>ֵ<EFBFBD>ݲ<EFBFBD><DDB2><EFBFBD><EFBFBD><EFBFBD> */
struct mesa_isakmp_hdr{ /* RFC2408-Page22 */
unsigned long long init_cookie;
unsigned long long resp_cookie;
unsigned char next_payload;
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned char minor_version:4;
unsigned char major_version:4;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned char major_version:4;
unsigned char minor_version:4;
#else
#error "Please check <endian.h>"
#endif
unsigned char exchange_type;
unsigned char flags;
unsigned int message_id;
unsigned int length;
};
struct mesa_isakmp_payload_hdr{ /* RFC2408-Page22 */
unsigned char next_payload;
unsigned char reserver;
unsigned short payload_len;
};
#define GTP_MSG_TYPE_T_PDU (0xFF)
struct gtp_hdr{
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned char flags;
unsigned char msg_type;
unsigned short len;
unsigned int teid;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned int teid;
unsigned short len;
unsigned char msg_type;
unsigned char flags;
#else
#error "Please check <endian.h>"
#endif
};
#define MAX_ADDR_TYPE_STRING_LEN (64)
#define MAX_ADDR_LIST_STRING_LEN (2048)
#define MAX_ADDR_EMBED_LAYER_NUM (20) /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַǶ<D6B7>ײ<EFBFBD><D7B2><EFBFBD> */
#define MAX_ADDR_BIN_VALUE_LEN (40) /* paddrʵ<72><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󳤶<EFBFBD>, Ŀǰ<C4BF><C7B0>tuple4v6<76> */
/* <20><><EFBFBD><EFBFBD>ģʽ<C4A3><CABD>, <20><>¼MAC<41><43>ַ<EFBFBD><D6B7><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD> */
struct packet_io_mac_addr{
struct mesa_ethernet_hdr eth_hdr;
char route_dir;
char __pad__; /* <20><><EFBFBD><EFBFBD><EFBFBD>ṹ8<E1B9B9>ֽڶ<D6BD><DAB6><EFBFBD> */
};
unsigned char net_layer_to_ipv4_protocol(int addr_type);
unsigned char net_layer_to_ipv6_protocol(int addr_type);
unsigned short net_layer_to_ethernet_protocol(int addr_type);
int net_common_build_send_mac(unsigned char *buf, const struct mesa_ethernet_hdr *raw_eth_hdr, int addr_type, int dir_reverse, int net_topology_mode);
int net_common_adjust_forward_mac(struct mesa_ethernet_hdr *raw_eth_hdr,int net_topology_mode);
const void *MESA_net_jump_to_layer(const void *raw_data, int raw_layer_type, int expect_layer_type);
const void *MESA_net_jump_to_layer_greedy(const void *raw_data, int raw_layer_type, int expect_layer_type);
char MESA_ascii_to_hex(char ascii);
#ifdef __cplusplus
}
#endif
#endif
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