moip.h

MONA是为数不多的C++语言编写的一个很小的操作系统

/*!
    \file  MoIp.h
    \brief IP僾儘僩僐儖幚憰僋儔僗 僿僢僟

    Copyright (c) 2004 Yamami
    All rights reserved.
    License=MIT/X Licnese

    \author  Yamami 
    \version $Revision: 1.2 $
    \date   create:2004/09/20 update:$Date: 2004/10/31 14:29:43 $
*/
#ifndef _MONA_MOIP_
#define _MONA_MOIP_

#include <sys/types.h>
#include <sys/HashMap.h>
#include <monapi.h>

#include "MoPacUtl.h"
#include "MonesDefine.h"
#include "AbstractMonic.h"


// Yamami ??偙偺愰尵偙偙偱偄偄丠
/*! 
 *  \struct IP_HEADER
 *  \brief IP僿僢僟峔憿懱
 */
typedef struct{
    byte  verhead;  /* 僶乕僕儑儞丄僿僢僟挿丅 */
    byte  tos;      /* TOS. */
    word len;       /* 僩乕僞儖挿丅 */
    word id;        /* 幆暿斣崋丅 */
    word frag;      /* 僼儔僌丄僼儔僌儊儞僩僆僼僙僢僩丅 */
    byte  ttl;      /* Time to Live. */
    byte  prot;     /* 僾儘僩僐儖斣崋丅 */
    word chksum;    /* 僿僢僟僠僃僢僋僒儉丅 */
    dword srcip;        /* 憲傝尦IP丅 */
    dword dstip;        /* 埗愭IP丅 */
    char     data[0];
}IP_HEADER;


enum{
    IP_HEAD_VERSION=4<<4,

    IP_HEAD_FRAG_ON= 0x2000,    /* 僼儔僌儊儞僩僨乕僞偁傝僼儔僌丅 */
    IP_HEAD_FRAG_NOT=0x4000,    /* 僼儔僌儊儞僩晄壜僼儔僌丅 */
};

/*! 
 *  \struct TRANS_BUF_INFO
 *  \brief IP憲怣僶僢僼傽峔憿懱
 */
typedef struct{
    char  *data[3];     /* 憲怣僼儗乕儉傾僪儗僗丅 */
    int    size[3];     /* 僨乕僞僼儗乕儉僒僀僘丅 */
    word type;        /* 僼儗乕儉僞僀僾丅 */
    dword  ipType;      /* IP僾儘僩僐儖僞僀僾丅 */
}TRANS_BUF_INFO;


/*!
    MoIp class
*/
class MoIp
{
    
  public:
    
    //僐儞僗僩儔僋僞
    MoIp();
    ~MoIp();
    void initIp(AbstractMonic*);

    int receiveIp(IP_HEADER*);
    int transIp(TRANS_BUF_INFO*, dword , byte , int );

  private:
    int ipRouting(dword ,dword*);
    
    //NIC僪儔僀僶
    AbstractMonic* insAbstractNic;

};

#endif