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[/] [openrisc/] [trunk/] [bootloaders/] [orpmon/] [services/] [rarp.c] - Diff between revs 175 and 406

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Rev 175 Rev 406
/*
/*
 * (C) Copyright 2000
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 *
 * See file CREDITS for list of people who contributed to this
 * See file CREDITS for list of people who contributed to this
 * project.
 * project.
 *
 *
 * This program is free software; you can redistribute it and/or
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 * the License, or (at your option) any later version.
 *
 *
 * This program is distributed in the hope that it will be useful,
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * GNU General Public License for more details.
 *
 *
 * You should have received a copy of the GNU General Public License
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 * MA 02111-1307 USA
 */
 */
 
 
#include "common.h"
#include "common.h"
#include "net.h"
#include "net.h"
#include "bootp.h"
#include "bootp.h"
#include "rarp.h"
#include "rarp.h"
#include "tftp.h"
#include "tftp.h"
 
 
#if (CONFIG_COMMANDS & CFG_CMD_NET)
#if (CONFIG_COMMANDS & CFG_CMD_NET)
 
 
#define TIMEOUT         5               /* Seconds before trying BOOTP again */
#define TIMEOUT         5       /* Seconds before trying BOOTP again */
#define TIMEOUT_COUNT   1               /* # of timeouts before giving up    */
#define TIMEOUT_COUNT   1       /* # of timeouts before giving up    */
 
 
 
 
int             RarpTry;
int             RarpTry;
 
 
/*
/*
 *      Handle a RARP received packet.
 *      Handle a RARP received packet.
 */
 */
static void
static void
RarpHandler(uchar * dummi0, unsigned dummi1, unsigned dummi2, unsigned dummi3)
RarpHandler(uchar * dummi0, unsigned dummi1, unsigned dummi2, unsigned dummi3)
{
{
#ifdef  DEBUG
#ifdef  DEBUG
        printf("Got good RARP\n");
        printf("Got good RARP\n");
#endif
#endif
        TftpStart ();
        TftpStart();
}
}
 
 
 
 
/*
/*
 *      Timeout on BOOTP request.
 *      Timeout on BOOTP request.
 */
 */
static void
static void RarpTimeout(void)
RarpTimeout(void)
 
{
{
        if (RarpTry >= TIMEOUT_COUNT) {
        if (RarpTry >= TIMEOUT_COUNT) {
                puts ("\nRetry count exceeded; starting again\n");
                puts("\nRetry count exceeded; starting again\n");
                NetStartAgain ();
                NetStartAgain();
        } else {
        } else {
                NetSetTimeout (TIMEOUT * CFG_HZ, RarpTimeout);
                NetSetTimeout(TIMEOUT * CFG_HZ, RarpTimeout);
                RarpRequest ();
                RarpRequest();
        }
        }
}
}
 
 
 
void RarpRequest(void)
void
 
RarpRequest (void)
 
{
{
        int i;
        int i;
        volatile uchar *pkt;
        volatile uchar *pkt;
        ARP_t * rarp;
        ARP_t *rarp;
 
 
        printf("RARP broadcast %d\n", ++RarpTry);
        printf("RARP broadcast %d\n", ++RarpTry);
        pkt = NetTxPacket;
        pkt = NetTxPacket;
 
 
        NetSetEther(pkt, NetBcastAddr, PROT_RARP);
        NetSetEther(pkt, NetBcastAddr, PROT_RARP);
        pkt += ETHER_HDR_SIZE;
        pkt += ETHER_HDR_SIZE;
 
 
        rarp = (ARP_t *)pkt;
        rarp = (ARP_t *) pkt;
 
 
        rarp->ar_hrd = ARP_ETHER;
        rarp->ar_hrd = ARP_ETHER;
        rarp->ar_pro = PROT_IP;
        rarp->ar_pro = PROT_IP;
        rarp->ar_hln = 6;
        rarp->ar_hln = 6;
        rarp->ar_pln = 4;
        rarp->ar_pln = 4;
        rarp->ar_op  = RARPOP_REQUEST;
        rarp->ar_op = RARPOP_REQUEST;
        NetCopyEther(&rarp->ar_data[0], NetOurEther);    /* source ET addr */
        NetCopyEther(&rarp->ar_data[0], NetOurEther);    /* source ET addr */
        *(IPaddr_t *)(&rarp->ar_data[6]) = NetOurIP;    /* source IP addr */
        *(IPaddr_t *) (&rarp->ar_data[6]) = NetOurIP;   /* source IP addr */
        NetCopyEther(&rarp->ar_data[10], NetOurEther);  /* dest ET addr = source ET addr ??*/
        NetCopyEther(&rarp->ar_data[10], NetOurEther);  /* dest ET addr = source ET addr ?? */
        /* dest. IP addr set to broadcast */
        /* dest. IP addr set to broadcast */
        for (i = 0; i <= 3; i++) {
        for (i = 0; i <= 3; i++) {
                rarp->ar_data[16 + i] = 0xff;
                rarp->ar_data[16 + i] = 0xff;
        }
        }
 
 
        NetSendPacket(NetTxPacket, ETHER_HDR_SIZE + ARP_HDR_SIZE);
        NetSendPacket(NetTxPacket, ETHER_HDR_SIZE + ARP_HDR_SIZE);
 
 
        NetSetTimeout(TIMEOUT * CFG_HZ, RarpTimeout);
        NetSetTimeout(TIMEOUT * CFG_HZ, RarpTimeout);
        NetSetHandler(RarpHandler);
        NetSetHandler(RarpHandler);
}
}
 
 
#endif /* CFG_CMD_NET */
#endif /* CFG_CMD_NET */
 
 

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