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Diffstat (limited to 'apps/nshlib/nsh_netinit.c')
-rw-r--r-- | apps/nshlib/nsh_netinit.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/apps/nshlib/nsh_netinit.c b/apps/nshlib/nsh_netinit.c new file mode 100644 index 000000000..5d74b30d7 --- /dev/null +++ b/apps/nshlib/nsh_netinit.c @@ -0,0 +1,170 @@ +/**************************************************************************** + * apps/nshlib/nsh_netinit.c + * + * Copyright (C) 2010-2012 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 <apps/netutils/uiplib.h> +#if defined(CONFIG_NSH_DHCPC) +# include <apps/netutils/resolv.h> +# include <apps/netutils/dhcpc.h> +#endif + +#include "nsh.h" + +#ifdef CONFIG_NET + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * 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) + uint8_t mac[IFHWADDRLEN]; +#endif + +/* Many embedded network interfaces must have a software assigned MAC */ + +#ifdef CONFIG_NSH_NOMAC + mac[0] = 0x00; + mac[1] = 0xe0; + mac[2] = 0xde; + mac[3] = 0xad; + mac[4] = 0xbe; + mac[5] = 0xef; + uip_setmacaddr("eth0", 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 + uip_sethostaddr("eth0", &addr); + + /* Set up the default router address */ + + addr.s_addr = HTONL(CONFIG_NSH_DRIPADDR); + uip_setdraddr("eth0", &addr); + + /* Setup the subnet mask */ + + addr.s_addr = HTONL(CONFIG_NSH_NETMASK); + uip_setnetmask("eth0", &addr); + +#if defined(CONFIG_NSH_DHCPC) + /* Set up the resolver */ + + resolv_init(); +#endif + +#if defined(CONFIG_NSH_DHCPC) + /* Get the MAC address of the NIC */ + + uip_getmacaddr("eth0", 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); + uip_sethostaddr("eth1", &ds.ipaddr); + if (ds.netmask.s_addr != 0) + { + uip_setnetmask("eth0", &ds.netmask); + } + if (ds.default_router.s_addr != 0) + { + uip_setdraddr("eth0", &ds.default_router); + } + if (ds.dnsaddr.s_addr != 0) + { + resolv_conf(&ds.dnsaddr); + } + dhcpc_close(handle); + } +#endif + return OK; +} + +#endif /* CONFIG_NET */ |