152 lines
3.2 KiB
C
152 lines
3.2 KiB
C
/************************************
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* Protocol.h
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*************************************/
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#ifndef __PROTOCOL_H__
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#define __PROTOCOL_H__
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#define IPV4 4
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#define IPV6 6
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struct ArpHeader {
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struct arphdr arp;
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unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
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unsigned char ar_sip[4]; /* sender IP address */
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unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
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unsigned char ar_tip[4]; /* target IP address */
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}/*__attribute__((packed))*/;
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struct TransportHeaderT
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{
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union
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{
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struct udphdr uhdr;
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struct tcphdr thdr;
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};
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} __attribute__((packed));
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typedef struct TransportHeaderT xporthdr;
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typedef enum _E_NWPKT_IPFRAME_TYPE
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{
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eNonIPPacket,
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eIPv4Packet,
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eIPv6Packet
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}E_NWPKT_IPFRAME_TYPE;
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typedef enum _E_NWPKT_ETHFRAME_TYPE
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{
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eEthUnsupportedFrame,
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eEth802LLCFrame,
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eEth802LLCSNAPFrame,
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eEth802QVLANFrame,
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eEthOtherFrame
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} E_NWPKT_ETHFRAME_TYPE;
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typedef struct _S_ETHCS_PKT_INFO
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{
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E_NWPKT_IPFRAME_TYPE eNwpktIPFrameType;
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E_NWPKT_ETHFRAME_TYPE eNwpktEthFrameType;
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USHORT usEtherType;
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UCHAR ucDSAP;
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}S_ETHCS_PKT_INFO,*PS_ETHCS_PKT_INFO;
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typedef struct _ETH_CS_802_Q_FRAME
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{
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ETH_HEADER_STRUC EThHdr;
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USHORT UserPriority:3;
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USHORT CFI:1;
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USHORT VLANID:12;
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USHORT EthType;
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} __attribute__((packed)) ETH_CS_802_Q_FRAME;
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typedef struct _ETH_CS_802_LLC_FRAME
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{
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ETH_HEADER_STRUC EThHdr;
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unsigned char DSAP;
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unsigned char SSAP;
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unsigned char Control;
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}__attribute__((packed)) ETH_CS_802_LLC_FRAME;
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typedef struct _ETH_CS_802_LLC_SNAP_FRAME
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{
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ETH_HEADER_STRUC EThHdr;
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unsigned char DSAP;
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unsigned char SSAP;
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unsigned char Control;
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unsigned char OUI[3];
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unsigned short usEtherType;
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} __attribute__((packed)) ETH_CS_802_LLC_SNAP_FRAME;
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typedef struct _ETH_CS_ETH2_FRAME
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{
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ETH_HEADER_STRUC EThHdr;
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} __attribute__((packed)) ETH_CS_ETH2_FRAME;
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#define ETHERNET_FRAMETYPE_IPV4 ntohs(0x0800)
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#define ETHERNET_FRAMETYPE_IPV6 ntohs(0x86dd)
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#define ETHERNET_FRAMETYPE_802QVLAN 0x8100
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//Per SF CS Specification Encodings
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typedef enum _E_SERVICEFLOW_CS_SPEC_
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{
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eCSSpecUnspecified =0,
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eCSPacketIPV4,
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eCSPacketIPV6,
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eCS802_3PacketEthernet,
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eCS802_1QPacketVLAN,
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eCSPacketIPV4Over802_3Ethernet,
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eCSPacketIPV6Over802_3Ethernet,
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eCSPacketIPV4Over802_1QVLAN,
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eCSPacketIPV6Over802_1QVLAN,
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eCSPacketUnsupported
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}E_SERVICEFLOW_CS_SPEC;
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#define IP6_HEADER_LEN 40
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#define IP_VERSION(byte) (((byte&0xF0)>>4))
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#define MAC_ADDRESS_SIZE 6
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#define ETH_AND_IP_HEADER_LEN 14 + 20
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#define L4_SRC_PORT_LEN 2
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#define L4_DEST_PORT_LEN 2
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#define CTRL_PKT_LEN 8 + ETH_AND_IP_HEADER_LEN
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#define ETH_ARP_FRAME 0x806
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#define ETH_IPV4_FRAME 0x800
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#define ETH_IPV6_FRAME 0x86DD
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#define UDP 0x11
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#define TCP 0x06
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#define ARP_OP_REQUEST 0x01
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#define ARP_OP_REPLY 0x02
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#define ARP_PKT_SIZE 60
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// This is the format for the TCP packet header
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typedef struct _TCP_HEADER
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{
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USHORT usSrcPort;
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USHORT usDestPort;
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ULONG ulSeqNumber;
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ULONG ulAckNumber;
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UCHAR HeaderLength;
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UCHAR ucFlags;
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USHORT usWindowsSize;
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USHORT usChkSum;
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USHORT usUrgetPtr;
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} TCP_HEADER,*PTCP_HEADER;
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#define TCP_HEADER_LEN sizeof(TCP_HEADER)
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#define TCP_ACK 0x10 //Bit 4 in tcpflags field.
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#define GET_TCP_HEADER_LEN(byte) ((byte&0xF0)>>4)
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#endif //__PROTOCOL_H__
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