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Dependents:   oldheating gps motorhome heating

tcp/tcb.h

Committer:
andrewboyson
Date:
2018-12-02
Revision:
93:580fc113d9e9
Parent:
83:08c983006a6e
Child:
126:62edacc9f14d

File content as of revision 93:580fc113d9e9:

#ifndef TCB_H
#define TCB_H

#include <stdint.h>
#include <stdbool.h>

#define TCB_EMPTY          0
#define TCB_SYN_RECEIVED   1
#define TCB_ESTABLISHED    2
#define TCB_CLOSE_FIN_WAIT 3

struct tcb
{
    int      state;
    uint32_t timeSendsBeingAcked; //Used for RTO
    int      countSendsNotAcked;  //Used for RTO
    uint32_t timeLastRcvd;        //Used for detect idle links
    int      ipType;
    int      remArIndex;          //Unique per remote ip when taken with the ipType
    int      locIpScope;          //Unique per local ip
    uint16_t remPort;
    uint16_t locPort;
    uint32_t remMss;
    uint32_t window;
    
    uint32_t remIsn;
    uint32_t bytesRcvdFromRem;
    uint32_t bytesAckdToRem;
    bool     rcvdFin;
    
     int32_t todo;
    
    uint32_t locIsn;
    uint32_t bytesSentToRem;
    uint32_t bytesAckdByRem;
    bool     sentFin;
};

extern uint32_t    TcbGetIsn(void);
extern struct tcb* TcbGetExisting(int ipType, int remArIndex, int locIpScope, uint16_t remPort, uint16_t locPort);
extern struct tcb* TcbGetEmpty(void);
extern struct tcb* TcbGetNext(struct tcb* pTcb);
extern void        TcbInit(void);

#endif