1/************************************
  2* 	Protocol.h
  3*************************************/
  4#ifndef	__PROTOCOL_H__
  5#define	__PROTOCOL_H__
  6
  7
  8#define IPV4				4
  9#define IPV6                6
 10
 11
 12struct ArpHeader {
 13    struct arphdr       arp;
 14    unsigned char       ar_sha[ETH_ALEN];   /* sender hardware address  */
 15    unsigned char       ar_sip[4];      /* sender IP address        */
 16    unsigned char       ar_tha[ETH_ALEN];   /* target hardware address  */
 17    unsigned char       ar_tip[4];      /* target IP address        */
 18}/*__attribute__((packed))*/;
 19
 20
 21struct TransportHeaderT
 22{
 23	union
 24	{
 25		struct udphdr uhdr;
 26		struct tcphdr thdr;
 27	};
 28} __attribute__((packed));
 29typedef struct TransportHeaderT xporthdr;
 30
 31
 32typedef enum _E_NWPKT_IPFRAME_TYPE
 33{
 34	eNonIPPacket,
 35	eIPv4Packet,
 36	eIPv6Packet
 37}E_NWPKT_IPFRAME_TYPE;
 38
 39typedef enum _E_NWPKT_ETHFRAME_TYPE
 40{
 41	eEthUnsupportedFrame,
 42	eEth802LLCFrame,
 43	eEth802LLCSNAPFrame,
 44	eEth802QVLANFrame,
 45	eEthOtherFrame
 46} E_NWPKT_ETHFRAME_TYPE;
 47
 48typedef struct _S_ETHCS_PKT_INFO
 49{
 50	E_NWPKT_IPFRAME_TYPE eNwpktIPFrameType;
 51	E_NWPKT_ETHFRAME_TYPE eNwpktEthFrameType;
 52	USHORT	usEtherType;
 53	UCHAR	ucDSAP;
 54}S_ETHCS_PKT_INFO,*PS_ETHCS_PKT_INFO;
 55
 56typedef struct _ETH_CS_802_Q_FRAME
 57{
 58	ETH_HEADER_STRUC EThHdr;
 59	USHORT UserPriority:3;
 60	USHORT CFI:1;
 61	USHORT VLANID:12;
 62	USHORT EthType;
 63} __attribute__((packed)) ETH_CS_802_Q_FRAME;
 64
 65typedef struct _ETH_CS_802_LLC_FRAME
 66{
 67	ETH_HEADER_STRUC EThHdr;
 68	unsigned char DSAP;
 69	unsigned char SSAP;
 70	unsigned char Control;
 71}__attribute__((packed)) ETH_CS_802_LLC_FRAME;
 72
 73typedef struct _ETH_CS_802_LLC_SNAP_FRAME
 74{
 75	ETH_HEADER_STRUC EThHdr;
 76	unsigned char DSAP;
 77	unsigned char SSAP;
 78	unsigned char Control;
 79	unsigned char OUI[3];
 80	unsigned short usEtherType;
 81} __attribute__((packed)) ETH_CS_802_LLC_SNAP_FRAME;
 82
 83typedef struct _ETH_CS_ETH2_FRAME
 84{
 85	ETH_HEADER_STRUC EThHdr;
 86} __attribute__((packed)) ETH_CS_ETH2_FRAME;
 87
 88#define ETHERNET_FRAMETYPE_IPV4		ntohs(0x0800)
 89#define ETHERNET_FRAMETYPE_IPV6 	ntohs(0x86dd)
 90#define ETHERNET_FRAMETYPE_802QVLAN 	ntohs(0x8100)
 91
 92//Per SF CS Specification Encodings
 93typedef enum _E_SERVICEFLOW_CS_SPEC_
 94{
 95	eCSSpecUnspecified =0,
 96	eCSPacketIPV4,
 97	eCSPacketIPV6,
 98	eCS802_3PacketEthernet,
 99	eCS802_1QPacketVLAN,
100	eCSPacketIPV4Over802_3Ethernet,
101	eCSPacketIPV6Over802_3Ethernet,
102	eCSPacketIPV4Over802_1QVLAN,
103	eCSPacketIPV6Over802_1QVLAN,
104	eCSPacketUnsupported
105}E_SERVICEFLOW_CS_SPEC;
106
107
108#define	IP6_HEADER_LEN	40
109
110#define IP_VERSION(byte)        (((byte&0xF0)>>4))
111
112
113
114#define MAC_ADDRESS_SIZE	6
115#define	ETH_AND_IP_HEADER_LEN	14 + 20
116#define L4_SRC_PORT_LEN 2
117#define L4_DEST_PORT_LEN 2
118
119
120
121#define	CTRL_PKT_LEN		8 + ETH_AND_IP_HEADER_LEN
122
123#define	ETH_ARP_FRAME			0x806
124#define	ETH_IPV4_FRAME			0x800
125#define	ETH_IPV6_FRAME			0x86DD
126#define UDP 					0x11
127#define TCP         			0x06
128
129#define	ARP_OP_REQUEST			0x01
130#define	ARP_OP_REPLY			0x02
131#define	ARP_PKT_SIZE			60
132
133// This is the format for the TCP packet header
134typedef struct _TCP_HEADER
135{
136	USHORT usSrcPort;
137	USHORT usDestPort;
138	ULONG  ulSeqNumber;
139	ULONG  ulAckNumber;
140	UCHAR  HeaderLength;
141    UCHAR  ucFlags;
142	USHORT usWindowsSize;
143	USHORT usChkSum;
144	USHORT usUrgetPtr;
145} TCP_HEADER,*PTCP_HEADER;
146#define TCP_HEADER_LEN  	sizeof(TCP_HEADER)
147#define TCP_ACK             0x10  //Bit 4 in tcpflags field.
148#define GET_TCP_HEADER_LEN(byte) ((byte&0xF0)>>4)
149
150
151#endif //__PROTOCOL_H__