018c9420ac
Change-Id: Iea3c0b8f91b0d6d8ececcd3932d8756a9d021608 Signed-off-by: chao.an <anchao@xiaomi.com>
153 lines
4.4 KiB
C
153 lines
4.4 KiB
C
/****************************************************************************
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* examples/dhcpd/dhcpd_daemon.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include "netutils/netlib.h"
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#include "netutils/dhcpd.h"
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/****************************************************************************
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* Preprocessor Definitions
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****************************************************************************/
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/* Configuration Checks *****************************************************/
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/* BEWARE:
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* There are other configuration settings needed in netutils/dhcpd/dhcpdc.c,
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* but there are default values for those so we cannot check them here.
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*/
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#ifndef CONFIG_EXAMPLES_DHCPD_IPADDR
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# error "You must define CONFIG_EXAMPLES_DHCPD_IPADDR"
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#endif
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#ifndef CONFIG_EXAMPLES_DHCPD_DRIPADDR
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# error "You must define CONFIG_EXAMPLES_DHCPD_DRIPADDR"
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#endif
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#ifndef CONFIG_EXAMPLES_DHCPD_NETMASK
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# error "You must define CONFIG_EXAMPLES_DHCPD_NETMASK"
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#endif
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#ifndef CONFIG_NET
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# error "You must define CONFIG_NET"
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#endif
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#ifndef CONFIG_NET_UDP
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# error "You must define CONFIG_NET_UDP"
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#endif
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#ifndef CONFIG_NET_BROADCAST
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# error "You must define CONFIG_NET_BROADCAST"
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* dhcpd_showusage
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****************************************************************************/
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static void dhcpd_showusage(FAR const char *progname, int exitcode)
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{
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fprintf(stderr, "Usage: %s <device-name>\n", progname);
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exit(exitcode);
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: dhcpd_daemon
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****************************************************************************/
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int dhcpd_daemon(int argc, FAR char *argv[], bool daemon)
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{
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FAR const char *devname;
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struct in_addr addr;
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#if defined(CONFIG_EXAMPLES_DHCPD_NOMAC)
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uint8_t mac[IFHWADDRLEN];
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#endif
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/* One and only one argument is expected: The network device name. */
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if (argc != 2)
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{
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fprintf(stderr, "ERROR: Invalid number of arguments\n");
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dhcpd_showusage(argv[0], EXIT_FAILURE);
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}
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devname = argv[1];
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/* Many embedded network interfaces must have a software assigned MAC */
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#ifdef CONFIG_EXAMPLES_DHCPD_NOMAC
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mac[0] = 0x00;
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mac[1] = 0xe0;
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mac[2] = 0xde;
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mac[3] = 0xad;
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mac[4] = 0xbe;
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mac[5] = 0xef;
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netlib_setmacaddr(devname, mac);
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#endif
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/* Set up our host address */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_DHCPD_IPADDR);
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netlib_set_ipv4addr(devname, &addr);
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/* Set up the default router address */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_DHCPD_DRIPADDR);
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netlib_set_dripv4addr(devname, &addr);
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/* Setup the subnet mask */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_DHCPD_NETMASK);
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netlib_set_ipv4netmask(devname, &addr);
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/* New versions of netlib_set_ipvXaddr will not bring the network up,
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* So ensure the network is really up at this point.
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*/
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netlib_ifup(devname);
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/* Then start the dhcpd */
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if (daemon)
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{
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return dhcpd_run(devname);
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}
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return dhcpd_start(devname);
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}
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