170 lines
5.3 KiB
C
170 lines
5.3 KiB
C
/****************************************************************************
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* examples/nsh/nsh_netinit.c
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*
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* Copyright (C) 2010 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* This is influenced by similar logic from uIP:
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*
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* Author: Adam Dunkels <adam@sics.se>
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* Copyright (c) 2003, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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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 <debug.h>
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#include <net/if.h>
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#include <net/uip/uip-lib.h>
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#if defined(CONFIG_EXAMPLES_NSH_DHCPC)
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# include <net/uip/resolv.h>
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# include <net/uip/dhcpc.h>
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#endif
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#include "nsh.h"
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#ifdef CONFIG_NET
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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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: nsh_netinit
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*
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* Description:
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* Initialize the network per the selected NuttX configuration
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*
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****************************************************************************/
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int nsh_netinit(void)
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{
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struct in_addr addr;
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#if defined(CONFIG_EXAMPLES_NSH_DHCPC)
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FAR void *handle;
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#endif
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#if defined(CONFIG_EXAMPLES_NSH_DHCPC) || defined(CONFIG_EXAMPLES_NSH_NOMAC)
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uint8_t mac[IFHWADDRLEN];
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#endif
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/* Many embedded network interfaces must have a software assigned MAC */
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#ifdef CONFIG_EXAMPLES_NSH_NOMAC
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mac[0] = 0x00;
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mac[1] = 0xe0;
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mac[2] = 0xb0;
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mac[3] = 0x0b;
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mac[4] = 0xba;
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mac[5] = 0xbe;
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uip_setmacaddr("eth0", mac);
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#endif
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/* Set up our host address */
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#if !defined(CONFIG_EXAMPLES_NSH_DHCPC)
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addr.s_addr = HTONL(CONFIG_EXAMPLES_NSH_IPADDR);
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#else
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addr.s_addr = 0;
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#endif
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uip_sethostaddr("eth0", &addr);
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/* Set up the default router address */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_NSH_DRIPADDR);
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uip_setdraddr("eth0", &addr);
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/* Setup the subnet mask */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_NSH_NETMASK);
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uip_setnetmask("eth0", &addr);
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#if defined(CONFIG_EXAMPLES_NSH_DHCPC)
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/* Set up the resolver */
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resolv_init();
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#endif
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#if defined(CONFIG_EXAMPLES_NSH_DHCPC)
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/* Get the MAC address of the NIC */
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uip_getmacaddr("eth0", mac);
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/* Set up the DHCPC modules */
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handle = dhcpc_open(&mac, IFHWADDRLEN);
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/* Get an IP address. Note that there is no logic for renewing the IP address in this
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* example. The address should be renewed in ds.lease_time/2 seconds.
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*/
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if (handle)
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{
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struct dhcpc_state ds;
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(void)dhcpc_request(handle, &ds);
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uip_sethostaddr("eth1", &ds.ipaddr);
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if (ds.netmask.s_addr != 0)
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{
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uip_setnetmask("eth0", &ds.netmask);
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}
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if (ds.default_router.s_addr != 0)
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{
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uip_setdraddr("eth0", &ds.default_router);
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}
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if (ds.dnsaddr.s_addr != 0)
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{
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resolv_conf(&ds.dnsaddr);
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}
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dhcpc_close(handle);
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}
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#endif
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return OK;
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}
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#endif /* CONFIG_NET */
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