/****************************************************************************
* apps/nshlib/nsh_netinit.c
*
* Copyright (C) 2010-2012, 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* This is influenced by similar logic from uIP:
*
* Author: Adam Dunkels <adam@sics.se>
* Copyright (c) 2003, Adam Dunkels.
* All rights reserved.
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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 <debug.h>
#include <net/if.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <apps/netutils/netlib.h>
#if defined(CONFIG_NSH_DHCPC) || defined(CONFIG_NSH_DNS)
# include <apps/netutils/dnsclient.h>
# include <apps/netutils/dhcpc.h>
#endif
#include "nsh.h"
#ifdef CONFIG_NET
/****************************************************************************
* Definitions
****************************************************************************/
#if defined(CONFIG_NSH_DRIPADDR) && !defined(CONFIG_NSH_DNSIPADDR)
# define CONFIG_NSH_DNSIPADDR CONFIG_NSH_DRIPADDR
#endif
/* SLIP-specific configuration
*
* REVISIT: How will we handle Ethernet and SLIP networks together? In the
* future, NSH will need to be extended to handle multiple networks with
* mixed transports.
*/
#ifdef CONFIG_NET_SLIP
# define NET_DEVNAME "sl0"
# ifndef CONFIG_NSH_NOMAC
# error "CONFIG_NSH_NOMAC must be defined for SLIP"
# endif
#else
# define NET_DEVNAME "eth0"
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_netinit
*
* Description:
* Initialize the network per the selected NuttX configuration
*
****************************************************************************/
int nsh_netinit(void)
{
struct in_addr addr;
#if defined(CONFIG_NSH_DHCPC)
FAR void *handle;
#endif
#if (defined(CONFIG_NSH_DHCPC) || defined(CONFIG_NSH_NOMAC)) && !defined(CONFIG_NET_SLIP)
uint8_t mac[IFHWADDRLEN];
#endif
/* Many embedded network interfaces must have a software assigned MAC */
#if defined(CONFIG_NSH_NOMAC) && !defined(CONFIG_NET_SLIP)
mac[0] = 0x00;
mac[1] = 0xe0;
mac[2] = 0xde;
mac[3] = 0xad;
mac[4] = 0xbe;
mac[5] = 0xef;
netlib_setmacaddr(NET_DEVNAME, mac);
#endif
/* Set up our host address */
#if !defined(CONFIG_NSH_DHCPC)
addr.s_addr = HTONL(CONFIG_NSH_IPADDR);
#else
addr.s_addr = 0;
#endif
netlib_sethostaddr(NET_DEVNAME, &addr);
/* Set up the default router address */
addr.s_addr = HTONL(CONFIG_NSH_DRIPADDR);
netlib_setdraddr(NET_DEVNAME, &addr);
/* Setup the subnet mask */
addr.s_addr = HTONL(CONFIG_NSH_NETMASK);
netlib_setnetmask(NET_DEVNAME, &addr);
#if defined(CONFIG_NSH_DHCPC) || defined(CONFIG_NSH_DNS)
/* Set up the resolver */
dns_bind();
#if defined(CONFIG_NSH_DNS)
addr.s_addr = HTONL(CONFIG_NSH_DNSIPADDR);
dns_setserver(&addr);
#endif
#endif
#if defined(CONFIG_NSH_DHCPC)
/* Get the MAC address of the NIC */
netlib_getmacaddr(NET_DEVNAME, mac);
/* Set up the DHCPC modules */
handle = dhcpc_open(&mac, IFHWADDRLEN);
/* Get an IP address. Note that there is no logic for renewing the IP address in this
* example. The address should be renewed in ds.lease_time/2 seconds.
*/
if (handle)
{
struct dhcpc_state ds;
(void)dhcpc_request(handle, &ds);
netlib_sethostaddr(NET_DEVNAME, &ds.ipaddr);
if (ds.netmask.s_addr != 0)
{
netlib_setnetmask(NET_DEVNAME, &ds.netmask);
}
if (ds.default_router.s_addr != 0)
{
netlib_setdraddr(NET_DEVNAME, &ds.default_router);
}
if (ds.dnsaddr.s_addr != 0)
{
dns_setserver(&ds.dnsaddr);
}
dhcpc_close(handle);
}
#endif
return OK;
}
#endif /* CONFIG_NET */
