static int lib_dns_query(FAR const char *hostname,
                         FAR struct sockaddr *addr, socklen_t *addrlen)
{
  int sd;
  int ret;

  /* Create and bind a socket to the DNS server */

  sd = dns_bind();
  if (sd < 0)
    {
      return sd;
    }

  /* Perform the query to get the IP address */

  ret = dns_query(sd, hostname, addr, addrlen);

  /* Release the socket */

  close(sd);
  return ret;
}
Example #2
0
int discover_main(int argc, char *argv[])
{
  /* If this task is excecutated as an NSH built-in function, then the
   * network has already been configured by NSH's start-up logic.
   */

#ifndef CONFIG_NSH_BUILTIN_APPS
  struct in_addr addr;
#if defined(CONFIG_EXAMPLES_DISCOVER_DHCPC) || defined(CONFIG_EXAMPLES_DISCOVER_NOMAC)
  uint8_t mac[IFHWADDRLEN];
#endif
#ifdef CONFIG_EXAMPLES_DISCOVER_DHCPC
  void *handle;
#endif

/* Many embedded network interfaces must have a software assigned MAC */

#ifdef CONFIG_EXAMPLES_DISCOVER_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 */

#ifdef CONFIG_EXAMPLES_DISCOVER_DHCPC
  addr.s_addr = 0;
#else
  addr.s_addr = HTONL(CONFIG_EXAMPLES_DISCOVER_IPADDR);
#endif
  uip_sethostaddr("eth0", &addr);

  /* Set up the default router address */

  addr.s_addr = HTONL(CONFIG_EXAMPLES_DISCOVER_DRIPADDR);
  uip_setdraddr("eth0", &addr);

  /* Setup the subnet mask */

  addr.s_addr = HTONL(CONFIG_EXAMPLES_DISCOVER_NETMASK);
  uip_setnetmask("eth0", &addr);

#ifdef CONFIG_EXAMPLES_DISCOVER_DHCPC
  /* Set up the resolver */

  dns_bind();

  /* 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:  there is no logic here for renewing the address in this
   * example.  The address should be renewed in ds.lease_time/2 seconds.
   */

  printf("Getting IP address\n");
  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)
        {
          dns_setserver(&ds.dnsaddr);
        }

      dhcpc_close(handle);
      printf("IP: %s\n", inet_ntoa(ds.ipaddr));
    }

#endif /* CONFIG_EXAMPLES_DISCOVER_DHCPC */
#endif /* CONFIG_NSH_BUILTIN_APPS */

  if (discover_start(NULL) < 0)
    {
      ndbg("Could not start discover daemon.\n");
      return ERROR;
    }

  return OK;
}
static int tcpecho_netsetup()
{
  /* If this task is excecutated as an NSH built-in function, then the
   * network has already been configured by NSH's start-up logic.
   */

#ifndef CONFIG_NSH_BUILTIN_APPS
  struct in_addr addr;
#if defined(CONFIG_EXAMPLES_TCPECHO_DHCPC) || defined(CONFIG_EXAMPLES_TCPECHO_NOMAC)
  uint8_t mac[IFHWADDRLEN];
#endif
#ifdef CONFIG_EXAMPLES_TCPECHO_DHCPC
  struct dhcpc_state ds;
  void *handle;
#endif

/* Many embedded network interfaces must have a software assigned MAC */

#ifdef CONFIG_EXAMPLES_TCPECHO_NOMAC
  mac[0] = 0x00;
  mac[1] = 0xe0;
  mac[2] = 0xde;
  mac[3] = 0xad;
  mac[4] = 0xbe;
  mac[5] = 0xef;
  netlib_setmacaddr("eth0", mac);
#endif

  /* Set up our host address */

#ifdef CONFIG_EXAMPLES_TCPECHO_DHCPC
  addr.s_addr = 0;
#else
  addr.s_addr = HTONL(CONFIG_EXAMPLES_TCPECHO_IPADDR);
#endif
  netlib_sethostaddr("eth0", &addr);

  /* Set up the default router address */

  addr.s_addr = HTONL(CONFIG_EXAMPLES_TCPECHO_DRIPADDR);
  netlib_setdraddr("eth0", &addr);

  /* Setup the subnet mask */

  addr.s_addr = HTONL(CONFIG_EXAMPLES_TCPECHO_NETMASK);
  netlib_setnetmask("eth0", &addr);

#ifdef CONFIG_EXAMPLES_TCPECHO_DHCPC
  /* Set up the resolver */

  dns_bind();

  /* Get the MAC address of the NIC */

  netlib_getmacaddr("eth0", mac);

  /* Set up the DHCPC modules */

  handle = dhcpc_open(&mac, IFHWADDRLEN);

  /* Get an IP address.  Note:  there is no logic here for renewing the address in this
   * example.  The address should be renewed in ds.lease_time/2 seconds.
   */

  if (!handle)
    {
      return ERROR;
    }

  if (dhcpc_request(handle, &ds) != OK)
    {
      return ERROR;
    }

  netlib_sethostaddr("eth1", &ds.ipaddr);

  if (ds.netmask.s_addr != 0)
    {
      netlib_setnetmask("eth0", &ds.netmask);
    }

  if (ds.default_router.s_addr != 0)
    {
      netlib_setdraddr("eth0", &ds.default_router);
    }

  if (ds.dnsaddr.s_addr != 0)
    {
      dns_setserver(&ds.dnsaddr);
    }

  dhcpc_close(handle);
  printf("IP: %s\n", inet_ntoa(ds.ipaddr));

#endif /* CONFIG_EXAMPLES_TCPECHO_DHCPC */
#endif /* CONFIG_NSH_BUILTIN_APPS */

  return OK;
}
Example #4
0
int uip_main(int argc, char *argv[])
{
  struct in_addr addr;
#if defined(CONFIG_EXAMPLES_UIP_DHCPC) || defined(CONFIG_EXAMPLES_UIP_NOMAC)
  uint8_t mac[IFHWADDRLEN];
#endif
#ifdef CONFIG_EXAMPLES_UIP_DHCPC
  void *handle;
#endif

/* Many embedded network interfaces must have a software assigned MAC */

#ifdef CONFIG_EXAMPLES_UIP_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 */

#ifdef CONFIG_EXAMPLES_UIP_DHCPC
  addr.s_addr = 0;
#else
  addr.s_addr = HTONL(CONFIG_EXAMPLES_UIP_IPADDR);
#endif
  uip_sethostaddr("eth0", &addr);

  /* Set up the default router address */

  addr.s_addr = HTONL(CONFIG_EXAMPLES_UIP_DRIPADDR);
  uip_setdraddr("eth0", &addr);

  /* Setup the subnet mask */

  addr.s_addr = HTONL(CONFIG_EXAMPLES_UIP_NETMASK);
  uip_setnetmask("eth0", &addr);

#ifdef CONFIG_EXAMPLES_UIP_DHCPC
  /* Set up the resolver */

  dns_bind();

  /* 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:  there is no logic here for renewing the address in this
   * example.  The address should be renewed in ds.lease_time/2 seconds.
   */

  printf("Getting IP address\n");
  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)
          {
            dns_setserver(&ds.dnsaddr);
          }

        dhcpc_close(handle);
        printf("IP: %s\n", inet_ntoa(ds.ipaddr));
    }
#endif

#ifdef CONFIG_NET_TCP
  printf("Starting webserver\n");
  httpd_init();
  cgi_register();
  httpd_listen();
#endif

  while (1)
    {
      sleep(3);
      printf("uip_main: Still running\n");
#if CONFIG_NFILE_DESCRIPTORS > 0
      fflush(stdout);
#endif
    }

  return 0;
}