modify nuttx bug of lack of files

2021-06-11 11:25:07 +08:00
parent 4a7f51a5e9
commit 6d0f2ca39a
6752 changed files with 1528133 additions and 0 deletions
--- a/Ubiquitous/Nuttx/nuttx/net/netdev/netdev_default.c
+++ b/Ubiquitous/Nuttx/nuttx/net/netdev/netdev_default.c
@@ -0,0 +1,86 @@
+/****************************************************************************
+ * net/netdev/netdev_default.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/net/netdev.h>
+
+#include "utils/utils.h"
+#include "netdev/netdev.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: netdev_default
+ *
+ * Description:
+ *   Return the default network device.  REVISIT:  At present this function
+ *   arbitrarily returns the first UP device at the head of the device
+ *   list.  Perhaps the default device should be a device name
+ *   configuration option?
+ *
+ *   So why is this here:  It represents my current though for what to do
+ *   if a socket is connected with INADDY_ANY.  In this case, I suppose we
+ *   should use the IP address associated with some default device???
+ *
+ * Input Parameters:
+ *   NULL
+ *
+ * Returned Value:
+ *  Pointer to default network driver on success; null on failure
+ *
+ ****************************************************************************/
+
+FAR struct net_driver_s *netdev_default(void)
+{
+  FAR struct net_driver_s *ret = NULL;
+  FAR struct net_driver_s *dev;
+
+  /* Examine each registered network device */
+
+  net_lock();
+  for (dev = g_netdevices; dev; dev = dev->flink)
+    {
+      /* Is the interface in the "up" state? */
+
+      if ((dev->d_flags & IFF_UP) != 0)
+        {
+          /* Return a reference to the first device that we find in the UP
+           * state (but not the loopback device unless it is the only
+           * device).
+           */
+
+          ret = dev;
+          if (dev->d_lltype != NET_LL_LOOPBACK)
+            {
+              break;
+            }
+        }
+    }
+
+  net_unlock();
+  return ret;
+}