Work on IP/TCP Stack

[tpg/acess2.git] / Modules / IPStack / tcp.h

diff --git a/Modules/IPStack/tcp.h b/Modules/IPStack/tcp.h
index 0b64195..cd6caf0 100644 (file)
--- a/Modules/IPStack/tcp.h
+++ b/Modules/IPStack/tcp.h
@@ -17,26 +17,46 @@ struct sTCPHeader
        Uint16  DestPort;
        Uint32  SequenceNumber;
        Uint32  AcknowlegementNumber;
+       #if 0
        struct {
-               unsigned DataOffset: 4; // Size of the header in 32-bit words
                unsigned Reserved:      4;
-       };
-       struct {
-               unsigned CWR:   1;      // Congestion Window Reduced
-               unsigned ECE:   1;      // ECN-Echo
-               unsigned URG:   1;      // Urgent pointer is significant
-               unsigned ACK:   1;      // Acknowlegement field is significant
-               unsigned PSH:   1;      // Push Function
-               unsigned RST:   1;      // Reset Connection
-               unsigned SYN:   1;      // Synchronise Sequence Numbers
+               unsigned DataOffset: 4; // Size of the header in 32-bit words
+       } __attribute__ ((packed));
+       #else
+       Uint8   DataOffset;
+       #endif
+       #if 0
+       struct {        // Lowest to Highest
                unsigned FIN:   1;      // Last packet
-       } Flags;
+               unsigned SYN:   1;      // Synchronise Sequence Numbers
+               unsigned RST:   1;      // Reset Connection
+               unsigned PSH:   1;      // Push Function
+               unsigned ACK:   1;      // Acknowlegement field is significant
+               unsigned URG:   1;      // Urgent pointer is significant
+               unsigned ECE:   1;      // ECN-Echo
+               unsigned CWR:   1;      // Congestion Window Reduced
+       } __attribute__ ((packed)) Flags;
+       #else
+       Uint8   Flags;
+       #endif
        Uint16  WindowSize;
        
        Uint16  Checksum;
        Uint16  UrgentPointer;
        
        Uint8   Options[];
+} __attribute__ ((packed));
+
+enum eTCPFlags
+{
+       TCP_FLAG_FIN    = 0x01,
+       TCP_FLAG_SYN    = 0x02,
+       TCP_FLAG_RST    = 0x04,
+       TCP_FLAG_PSH    = 0x08,
+       TCP_FLAG_ACK    = 0x10,
+       TCP_FLAG_URG    = 0x20,
+       TCP_FLAG_ECE    = 0x40,
+       TCP_FLAG_CWR    = 0x80
 };
 
 struct sTCPListener
@@ -44,6 +64,8 @@ struct sTCPListener
        struct sTCPListener     *Next;
        Uint16  Port;
        tInterface      *Interface;
+       tVFS_Node       Node;
+        int    NextID;
        tTCPConnection  *Connections;
 };
 
@@ -55,6 +77,22 @@ struct sTCPConnection
        Uint16  RemotePort;
        tVFS_Node       Node;
        
+        int    NextSequenceSend;
+        int    NextSequenceRcv;
+       
+        int    nQueuedPackets;
+       struct {
+                int    Sequence;
+               void    *Data;
+       }       *QueuedPackets;
+       
+       
+        int    nFuturePackets;
+       struct {
+                int    SequenceNum;
+               void    *Data;
+       }       **FuturePackets;
+       
        tInterface      *Interface;
        union {
                tIPv4   v4;