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Protocol.h
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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 
12 struct 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 
21 struct TransportHeaderT
22 {
23  union
24  {
25  struct udphdr uhdr;
26  struct tcphdr thdr;
27  };
28 } __attribute__((packed));
29 typedef struct TransportHeaderT xporthdr;
30 
31 
32 typedef enum _E_NWPKT_IPFRAME_TYPE
33 {
34  eNonIPPacket,
35  eIPv4Packet,
36  eIPv6Packet
37 }E_NWPKT_IPFRAME_TYPE;
38 
39 typedef enum _E_NWPKT_ETHFRAME_TYPE
40 {
41  eEthUnsupportedFrame,
42  eEth802LLCFrame,
43  eEth802LLCSNAPFrame,
44  eEth802QVLANFrame,
45  eEthOtherFrame
46 } E_NWPKT_ETHFRAME_TYPE;
47 
48 typedef 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 
56 typedef struct _ETH_CS_802_Q_FRAME
57 {
58  struct bcm_eth_header 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 
65 typedef struct _ETH_CS_802_LLC_FRAME
66 {
67  struct bcm_eth_header EThHdr;
68  unsigned char DSAP;
69  unsigned char SSAP;
70  unsigned char Control;
71 }__attribute__((packed)) ETH_CS_802_LLC_FRAME;
72 
73 typedef struct _ETH_CS_802_LLC_SNAP_FRAME
74 {
75  struct bcm_eth_header 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 
83 typedef struct _ETH_CS_ETH2_FRAME
84 {
85  struct bcm_eth_header 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
93 typedef 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
134 typedef 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__
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