Initial revision
diff --git a/net/rarp.c b/net/rarp.c
new file mode 100644
index 0000000..279e650
--- /dev/null
+++ b/net/rarp.c
@@ -0,0 +1,106 @@
+/*
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <net.h>
+#include "bootp.h"
+#include "rarp.h"
+#include "tftp.h"
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+
+#define TIMEOUT 5 /* Seconds before trying BOOTP again */
+#ifndef CONFIG_NET_RETRY_COUNT
+# define TIMEOUT_COUNT 5 /* # of timeouts before giving up */
+#else
+# define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT)
+#endif
+
+
+int RarpTry;
+
+/*
+ * Handle a RARP received packet.
+ */
+static void
+RarpHandler(uchar * dummi0, unsigned dummi1, unsigned dummi2, unsigned dummi3)
+{
+#ifdef DEBUG
+ printf("Got good RARP\n");
+#endif
+ TftpStart ();
+}
+
+
+/*
+ * Timeout on BOOTP request.
+ */
+static void
+RarpTimeout(void)
+{
+ if (RarpTry >= TIMEOUT_COUNT) {
+ puts ("\nRetry count exceeded; starting again\n");
+ NetStartAgain ();
+ } else {
+ NetSetTimeout (TIMEOUT * CFG_HZ, RarpTimeout);
+ RarpRequest ();
+ }
+}
+
+
+void
+RarpRequest (void)
+{
+ int i;
+ volatile uchar *pkt;
+ ARP_t * rarp;
+
+ printf("RARP broadcast %d\n", ++RarpTry);
+ pkt = NetTxPacket;
+
+ NetSetEther(pkt, NetBcastAddr, PROT_RARP);
+ pkt += ETHER_HDR_SIZE;
+
+ rarp = (ARP_t *)pkt;
+
+ rarp->ar_hrd = ARP_ETHER;
+ rarp->ar_pro = PROT_IP;
+ rarp->ar_hln = 6;
+ rarp->ar_pln = 4;
+ rarp->ar_op = RARPOP_REQUEST;
+ memcpy (&rarp->ar_data[0], NetOurEther, 6); /* source ET addr */
+ memcpy (&rarp->ar_data[6], &NetOurIP, 4); /* source IP addr */
+ memcpy (&rarp->ar_data[10], NetOurEther, 6); /* dest ET addr = source ET addr ??*/
+ /* dest. IP addr set to broadcast */
+ for (i = 0; i <= 3; i++) {
+ rarp->ar_data[16 + i] = 0xff;
+ }
+
+ NetSendPacket(NetTxPacket, ETHER_HDR_SIZE + ARP_HDR_SIZE);
+
+ NetSetTimeout(TIMEOUT * CFG_HZ, RarpTimeout);
+ NetSetHandler(RarpHandler);
+}
+
+#endif /* CFG_CMD_NET */