- initial import

2018-06-05 11:05:37 +03:00
commit e1a4931375
4673 changed files with 1383093 additions and 0 deletions
--- a/src/engine/helper/HL_NetworkFrame.h
+++ b/src/engine/helper/HL_NetworkFrame.h
@@ -0,0 +1,114 @@
+#ifndef _HL_NETWORK_FRAME_H
+#define _HL_NETWORK_FRAME_H
+
+#include <stdint.h>
+#include "HL_InternetAddress.h"
+
+class NetworkFrame
+{
+public:
+  struct PacketData
+  {
+    const uint8_t* mData;
+    int mLength;
+
+    PacketData(const uint8_t* data, int length)
+      :mData(data), mLength(length)
+    {}
+
+    PacketData()
+      :mData(nullptr), mLength(0)
+    {}
+  };
+
+  static PacketData GetUdpPayloadForEthernet(PacketData& packet, InternetAddress& source, InternetAddress& destination);
+  static PacketData GetUdpPayloadForIp4(PacketData& packet, InternetAddress& source, InternetAddress& destination);
+  static PacketData GetUdpPayloadForIp6(PacketData& packet, InternetAddress& source, InternetAddress& destination);
+  static PacketData GetUdpPayloadForSLL(PacketData& packet, InternetAddress& source, InternetAddress& destination);
+
+  struct EthernetHeader
+  {
+    /* Ethernet addresses are 6 bytes */
+    static const int AddressLength = 6;
+    uint8_t   mEtherDHost[AddressLength]; /* Destination host address */
+    uint8_t   mEtherSHost[AddressLength]; /* Source host address */
+    uint16_t  mEtherType; /* IP? ARP? RARP? etc */
+  };
+
+  struct __attribute__((packed)) LinuxSllHeader
+  {
+    uint16_t mPacketType;
+    uint16_t mARPHRD;
+    uint16_t mAddressLength;
+    uint64_t mAddress;
+    uint16_t mProtocolType;
+  };
+
+  struct VlanHeader
+  {
+    uint16_t mMagicId;
+    uint16_t mData;
+  };
+
+  struct Ip4Header 
+  {
+    uint8_t   mVhl;		                      /* version << 4 | header length >> 2 */
+    uint8_t   mTos;		                      /* type of service */
+    uint16_t  mLen;		                      /* total length */
+    uint16_t  mId;		                      /* identification */
+    uint16_t  mOffset;		                  /* 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 */
+    uint8_t   mTtl;		                      /* time to live */
+    uint8_t   mProtocol;		                /* protocol */
+    uint16_t  mChecksum;		/* checksum */
+    in_addr   mSource, 
+              mDestination; /* source and dest address */
+
+    int headerLength() const 
+    {
+      return (mVhl & 0x0f) * 4;
+    }
+
+    int version() const
+    {
+      return mVhl >> 4;
+    }
+  };
+
+  struct UdpHeader
+  {
+    uint16_t	mSourcePort;		        /* source port */
+    uint16_t  mDestinationPort;
+    uint16_t	mDatagramLength;		    /* datagram length */
+    uint16_t  mDatagramChecksum;			/* datagram checksum */
+  };
+
+
+  struct TcpHeader
+  {
+    uint16_t mSourcePort;	/* source port */
+    uint16_t mDestinationPort;	/* destination port */
+    uint32_t mSeqNo;		/* sequence number */
+    uint32_t mAckNo;		/* acknowledgement number */
+    uint32_t mDataOffset;	/* data offset, rsvd */
+#define TH_OFF(th)	(((th)->th_offx2 & 0xf0) >> 4)
+    uint8_t  mFlags;
+#define TH_FIN 0x01
+#define TH_SYN 0x02
+#define TH_RST 0x04
+#define TH_PUSH 0x08
+#define TH_ACK 0x10
+#define TH_URG 0x20
+#define TH_ECE 0x40
+#define TH_CWR 0x80
+#define TH_FLAGS (TH_FIN|TH_SYN|TH_RST|TH_ACK|TH_URG|TH_ECE|TH_CWR)
+    uint16_t mWindow;		/* window */
+    uint16_t mChecksum;		/* checksum */
+    uint16_t mUrgentPointer;		/* urgent pointer */
+  };
+
+};
+#endif