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+/****************************************************************************
+ * examples/dhcpd/target.c
+ *
+ * Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
+ * COPYRIGHT OWNER OR 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+
+#include <apps/netutils/uiplib.h>
+#include <apps/netutils/dhcpd.h>
+
+/****************************************************************************
+ * Preprocessor Definitions
+ ****************************************************************************/
+
+/* Configuation Checkes *****************************************************/
+/* BEWARE:
+ * There are other configuration settings needed in netutitls/dhcpd/dhcpdc.s,
+ * but there are default values for those so we cannot check them here.
+ */
+
+#ifndef CONFIG_EXAMPLE_DHCPD_IPADDR
+# error "You must define CONFIG_EXAMPLE_DHCPD_IPADDR"
+#endif
+
+#ifndef CONFIG_EXAMPLE_DHCPD_DRIPADDR
+# error "You must define "
+#endif
+
+#ifndef CONFIG_EXAMPLE_DHCPD_NETMASK
+# error "You must define CONFIG_EXAMPLE_DHCPD_NETMASK"
+#endif
+
+#ifndef CONFIG_NET
+# error "You must define CONFIG_NET"
+#endif
+
+#ifndef CONFIG_NET_UDP
+# error "You must define CONFIG_NET_UDP"
+#endif
+
+#ifndef CONFIG_NET_BROADCAST
+# error "You must define CONFIG_NET_BROADCAST"
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * user_initialize
+ ****************************************************************************/
+
+#ifndef CONFIG_HAVE_WEAKFUNCTIONS
+void user_initialize(void)
+{
+ /* Stub that must be provided only if the toolchain does not support weak
+ * functions.
+ */
+}
+#endif
+
+/****************************************************************************
+ * user_start
+ ****************************************************************************/
+
+int user_start(int argc, char *argv[])
+{
+ struct in_addr addr;
+#if defined(CONFIG_EXAMPLE_DHCPD_NOMAC)
+ uint8_t mac[IFHWADDRLEN];
+#endif
+
+/* Many embedded network interfaces must have a software assigned MAC */
+
+#ifdef CONFIG_EXAMPLE_DHCPD_NOMAC
+ mac[0] = 0x00;
+ mac[1] = 0xe0;
+ mac[2] = 0xb0;
+ mac[3] = 0x0b;
+ mac[4] = 0xba;
+ mac[5] = 0xbe;
+ uip_setmacaddr("eth0", mac);
+#endif
+
+ /* Set up our host address */
+
+ addr.s_addr = HTONL(CONFIG_EXAMPLE_DHCPD_IPADDR);
+ uip_sethostaddr("eth0", &addr);
+
+ /* Set up the default router address */
+
+ addr.s_addr = HTONL(CONFIG_EXAMPLE_DHCPD_DRIPADDR);
+ uip_setdraddr("eth0", &addr);
+
+ /* Setup the subnet mask */
+
+ addr.s_addr = HTONL(CONFIG_EXAMPLE_DHCPD_NETMASK);
+ uip_setnetmask("eth0", &addr);
+
+ /* Then start the server */
+
+ dhcpd_run();
+ return 0;
+}