Add dhcp6c module

Signed-off-by: songlinzhang <songlinzhang@xiaomi.com>

include/netutils/dhcp6c.h

@@ -0,0 +1,76 @@
+/****************************************************************************
+ * apps/include/netutils/dhcp6c.h
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#ifndef __APPS_INCLUDE_NETUTILS_DHCP6C_H
+#define __APPS_INCLUDE_NETUTILS_DHCP6C_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <netinet/in.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct dhcp6c_state
+{
+  struct in6_addr addr;
+  struct in6_addr pd;       /* prefix address */
+  struct in6_addr dns;
+  struct in6_addr netmask;
+  uint8_t pl;               /* prefix len */
+  uint32_t t1;
+  uint32_t t2;
+};
+
+typedef void (*dhcp6c_callback_t)(FAR struct dhcp6c_state *presult);
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+FAR void *dhcp6c_open(FAR const char *interface);
+int dhcp6c_request(FAR void *handle, FAR struct dhcp6c_state *presult);
+int dhcp6c_request_async(FAR void *handle, dhcp6c_callback_t callback);
+void dhcp6c_cancel(FAR void *handle);
+void dhcp6c_close(FAR void *handle);
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __APPS_INCLUDE_NETUTILS_DHCP6C_H */

netutils/dhcp6c/Kconfig

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+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+config NETUTILS_DHCP6C
+    bool "DHCPv6 client"
+    default n
+    depends on NET_IPv6
+    depends on NET_UDP && NET_UDP_CHECKSUMS
+
+if NETUTILS_DHCP6C
+
+config NETUTILS_DHCP6C_REQUEST_TIMEOUT
+    int "Default single request timeout in second"
+    default 6
+
+endif

netutils/dhcp6c/Make.defs

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+# apps/netutils/dhcp6c/Make.defs
+#
+# 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.
+#
+############################################################################
+
+ifeq ($(CONFIG_NETUTILS_DHCP6C), y)
+CONFIGURED_APPS += $(APPDIR)/netutils/dhcp6c
+endif

netutils/dhcp6c/Makefile

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+############################################################################
+# apps/netutils/dhcp6c/Makefile
+#
+# 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.
+#
+############################################################################
+
+include $(APPDIR)/Make.defs
+
+ifeq ($(CONFIG_NETUTILS_DHCP6C),y)
+CSRCS += dhcp6c.c
+endif
+
+include $(APPDIR)/Application.mk