typedef struct sTCPHeader tTCPHeader;
typedef struct sTCPListener tTCPListener;
+typedef struct sTCPStoredPacket tTCPStoredPacket;
typedef struct sTCPConnection tTCPConnection;
struct sTCPHeader
Uint32 SequenceNumber;
Uint32 AcknowlegementNumber;
#if 0
- struct {
+ struct { // Lowest to highest
unsigned Reserved: 4;
unsigned DataOffset: 4; // Size of the header in 32-bit words
} __attribute__ ((packed));
struct sTCPListener
{
- struct sTCPListener *Next;
- Uint16 Port;
- tInterface *Interface;
- tVFS_Node Node;
- int NextID;
- tTCPConnection *Connections;
+ struct sTCPListener *Next; //!< Next server in the list
+ Uint16 Port; //!< Listening port (0 disables the server)
+ tInterface *Interface; //!< Listening Interface
+ tVFS_Node Node; //!< Server Directory node
+ int NextID; //!< Name of the next connection
+ tSpinlock lConnections; //!< Spinlock for connections
+ tTCPConnection *Connections; //!< Connections (linked list)
+ tTCPConnection *volatile NewConnections;
+ tTCPConnection *ConnectionsTail;
+};
+
+struct sTCPStoredPacket
+{
+ struct sTCPStoredPacket *Next;
+ size_t Length;
+ Uint32 Sequence;
+ Uint8 Data[];
};
struct sTCPConnection
{
struct sTCPConnection *Next;
- int State;
- Uint16 LocalPort;
- Uint16 RemotePort;
- tVFS_Node Node;
+ int State; //!< Connection state (see ::eTCPConnectionState)
+ Uint16 LocalPort; //!< Local port
+ Uint16 RemotePort; //!< Remote port
+ tInterface *Interface; //!< Listening Interface
+ tVFS_Node Node; //!< Node
- int NextSequenceSend;
- int NextSequenceRcv;
+ Uint32 NextSequenceSend; //!< Next sequence value for outbound packets
+ Uint32 NextSequenceRcv; //!< Next expected sequence value for inbound
- int nQueuedPackets;
- struct {
- int Sequence;
- void *Data;
- } *QueuedPackets;
+ /**
+ * \brief Non-ACKed packets
+ * \note FIFO list
+ * \{
+ */
+ tSpinlock lQueuedPackets;
+ tTCPStoredPacket *QueuedPackets; //!< Non-ACKed packets
+ /**
+ * \}
+ */
+ /**
+ * \brief Unread Packets
+ * \note Ring buffer
+ * \{
+ */
+ tSpinlock lRecievedPackets;
+ tRingBuffer *RecievedBuffer;
+ /**
+ * \}
+ */
- int nFuturePackets;
- struct {
- int SequenceNum;
- void *Data;
- } **FuturePackets;
+ /**
+ * \brief Out of sequence packets
+ * \note Sorted list to improve times
+ * \{
+ */
+ tSpinlock lFuturePackets; //!< Future packets spinlock
+ tTCPStoredPacket *FuturePackets; //!< Out of sequence packets
+ /**
+ * \}
+ */
- tInterface *Interface;
union {
tIPv4 v4;
tIPv6 v6;
- } RemoteIP; // Type is determined by LocalInterface->Type
+ } RemoteIP; //!< Remote IP Address
+ // Type is determined by LocalInterface->Type
};
enum eTCPConnectionState
{
TCP_ST_CLOSED,
+ TCP_ST_SYN_SENT,
TCP_ST_HALFOPEN,
- TCP_ST_OPEN
+ TCP_ST_OPEN,
+ TCP_ST_FIN_SENT,
+ TCP_ST_FINISHED
};
#endif