netaddrs.c

基于东南大学开发的SEP3203的ARM7中的所有驱动

/*****************************************************************************

* netaddrs.c

*

* portions Copyright (c) 2001 by Cognizant Pty Ltd.

*

* The authors hereby grant permission to use, copy, modify, distribute,

* and license this software and its documentation for any purpose, provided

* that existing copyright notices are retained in all copies and that this

* notice and the following disclaimer are included verbatim in any 

* distributions. No written agreement, license, or royalty fee is required

* for any of the authorized uses.

*

* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR

* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 

* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*

******************************************************************************

* REVISION HISTORY (please don't use tabs!)

*

* Robert Dickenson <[e-mail]>, Cognizant Pty Ltd.

* 2001-04-05  initial IP and MAC address support routines.

*

*****************************************************************************/



#include "netconf.h"

//#define HOME

#include "netaddrs.h"







EthernetAdress bcMAC   = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};   // BROADCAST MAC

EthernetAdress nullMAC = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

EthernetAdress myMAC   = {0x00, 0xE0, 0x4C, 0xE3, 0xD0, 0x7B};

InternetAdress myIP    = {211,   65  ,  48,   178};

//InternetAdress myIP    = {192,   168,  0,   250};





/***********************************************************************************

 *

 * Function:    CompareIP(InternetAdress* ip1, InternetAdress* ip2)

 * Description: Compare two IP adresses and return true or false

 *

 **********************************************************************************/

unsigned char  CompareIP(InternetAdress* ip1, InternetAdress* ip2)

{

    if ((ip1->ip1 == ip2->ip1) && (ip1->ip2 == ip2->ip2) && 

        (ip1->ip3 == ip2->ip3) && (ip1->ip4 == ip2->ip4))

        return(1);

    else

        return(0);

}



/***********************************************************************************

 *

 * Function:    CompareEA(EthernetAdress* ea1, EthernetAdress* ea2)

 * Description: Compare two Ethernet Adresses (MAC) and return true if equal.

 *

 **********************************************************************************/

unsigned char CompareEA(EthernetAdress* ea1, EthernetAdress* ea2)

{

    if ((ea1->mac1 == ea2->mac1) && (ea1->mac2 == ea2->mac2) &&

        (ea1->mac3 == ea2->mac3) && (ea1->mac4 == ea2->mac4) &&

        (ea1->mac5 == ea2->mac5) && (ea1->mac6 == ea2->mac6))

        return(1);

    else

        return(0);

}



/***********************************************************************************

 *

 * Function:    CopyEA(EthernetAdress* SourcePtr, EthernetAdress* DestPtr)

 * Description: This function simply copies the Ethernet adress from the source

 *              pointer to the destination pointer.

 *

 **********************************************************************************/

void CopyEA(EthernetAdress* SourcePtr, EthernetAdress* DestPtr)

{

    DestPtr->mac1 = SourcePtr->mac1;

    DestPtr->mac2 = SourcePtr->mac2;

    DestPtr->mac3 = SourcePtr->mac3;

    DestPtr->mac4 = SourcePtr->mac4;

    DestPtr->mac5 = SourcePtr->mac5;

    DestPtr->mac6 = SourcePtr->mac6;

}



/***********************************************************************************

 *

 * Function:    CopyIP(InternetAdress *SourcePtr, InternetAdress *DestPtr)

 * Description: This function copies the internet adress from the source pointer to

 *              the destination pointer.

 *

 **********************************************************************************/

void CopyIP(InternetAdress* SourcePtr, InternetAdress* DestPtr)

{

    DestPtr->ip1 = SourcePtr->ip1;

    DestPtr->ip2 = SourcePtr->ip2;

    DestPtr->ip3 = SourcePtr->ip3;

    DestPtr->ip4 = SourcePtr->ip4;

}



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