[Components] Change license to Apache License v2.0

31 files changed, 222 insertions, 415 deletions

diff --git a/components/dfs/include/dfs.h b/components/dfs/include/dfs.h
index f17458bd69..7fdcb1cfda 100644
--- a/components/dfs/include/dfs.h
+++ b/components/dfs/include/dfs.h
@@ -1,21 +1,7 @@
 /*
- * File      : dfs.h
- * This file is part of Device File System in RT-Thread RTOS
- * COPYRIGHT (C) 2004-2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/dfs/include/dfs_file.h b/components/dfs/include/dfs_file.h
index 5dc3946899..7ef681a247 100644
--- a/components/dfs/include/dfs_file.h
+++ b/components/dfs/include/dfs_file.h
@@ -1,21 +1,7 @@
 /*
- * File      : dfs_file.h
- * This file is part of Device File System in RT-Thread RTOS
- * COPYRIGHT (C) 2004-2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/dfs/include/dfs_fs.h b/components/dfs/include/dfs_fs.h
index 38d8766ee1..711771a137 100644
--- a/components/dfs/include/dfs_fs.h
+++ b/components/dfs/include/dfs_fs.h
@@ -1,21 +1,7 @@
 /*
- * File      : dfs_fs.h
- * This file is part of Device File System in RT-Thread RTOS
- * COPYRIGHT (C) 2004-2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/dfs/include/dfs_poll.h b/components/dfs/include/dfs_poll.h
index cfdf74fbe4..3728b86248 100644
--- a/components/dfs/include/dfs_poll.h
+++ b/components/dfs/include/dfs_poll.h
@@ -1,3 +1,12 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
+
 #ifndef DFS_POLL_H__
 #define DFS_POLL_H__
 
@@ -34,4 +43,3 @@ int poll(struct pollfd *fds, nfds_t nfds, int timeout);
 #endif
 
 #endif
-
diff --git a/components/dfs/include/dfs_posix.h b/components/dfs/include/dfs_posix.h
index b751f1ed17..79607fc8b4 100644
--- a/components/dfs/include/dfs_posix.h
+++ b/components/dfs/include/dfs_posix.h
@@ -1,21 +1,7 @@
 /*
- * File      : dfs_posix.h
- * This file is part of Device File System in RT-Thread RTOS
- * COPYRIGHT (C) 2004-2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/dfs/include/dfs_private.h b/components/dfs/include/dfs_private.h
index 43be0db00e..e20680d9df 100644
--- a/components/dfs/include/dfs_private.h
+++ b/components/dfs/include/dfs_private.h
@@ -1,3 +1,12 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
+
 #ifndef DFS_PRIVATE_H__
 #define DFS_PRIVATE_H__
 
diff --git a/components/dfs/include/dfs_select.h b/components/dfs/include/dfs_select.h
index 1c51b1df38..3ac5817874 100644
--- a/components/dfs/include/dfs_select.h
+++ b/components/dfs/include/dfs_select.h
@@ -1,3 +1,12 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
+
 #ifndef DFS_SELECT_H__
 #define DFS_SELECT_H__
 
diff --git a/components/dfs/src/dfs.c b/components/dfs/src/dfs.c
index 5a98883549..d8cd09baa2 100644
--- a/components/dfs/src/dfs.c
+++ b/components/dfs/src/dfs.c
@@ -1,21 +1,7 @@
 /*
- * File      : dfs.c
- * This file is part of Device File System in RT-Thread RTOS
- * COPYRIGHT (C) 2004-2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/dfs/src/dfs_file.c b/components/dfs/src/dfs_file.c
index 76cf419c0a..89e4bff5dd 100644
--- a/components/dfs/src/dfs_file.c
+++ b/components/dfs/src/dfs_file.c
@@ -1,22 +1,8 @@
 /*
- * File      : dfs_file.c
- * This file is part of Device File System in RT-Thread RTOS
- * COPYRIGHT (C) 2004-2011, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
+ * SPDX-License-Identifier: Apache-2.0
+ * 
  * Change Logs:
  * Date           Author       Notes
  * 2005-02-22     Bernard      The first version.
diff --git a/components/dfs/src/dfs_fs.c b/components/dfs/src/dfs_fs.c
index 66740d647e..fb970488dd 100644
--- a/components/dfs/src/dfs_fs.c
+++ b/components/dfs/src/dfs_fs.c
@@ -1,21 +1,7 @@
 /*
- * File      : dfs_fs.c
- * This file is part of Device File System in RT-Thread RTOS
- * COPYRIGHT (C) 2004-2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/dfs/src/dfs_posix.c b/components/dfs/src/dfs_posix.c
index 898488a2aa..59acde1f8c 100644
--- a/components/dfs/src/dfs_posix.c
+++ b/components/dfs/src/dfs_posix.c
@@ -1,21 +1,7 @@
 /*
- * File      : dfs_posix.c
- * This file is part of Device File System in RT-Thread RTOS
- * COPYRIGHT (C) 2004-2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/dfs/src/poll.c b/components/dfs/src/poll.c
index f2f3fc4c76..6655a8a667 100644
--- a/components/dfs/src/poll.c
+++ b/components/dfs/src/poll.c
@@ -1,21 +1,7 @@
 /*
- * File      : poll.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/dfs/src/select.c b/components/dfs/src/select.c
index cbbd159557..b9a444fe44 100644
--- a/components/dfs/src/select.c
+++ b/components/dfs/src/select.c
@@ -1,21 +1,7 @@
 /*
- * File      : select.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/net/SConscript b/components/net/SConscript
index b930821bd8..35b5fe46f9 100644
--- a/components/net/SConscript
+++ b/components/net/SConscript
@@ -8,7 +8,7 @@ cwd = GetCurrentDir()
 list = os.listdir(cwd)
 
 # the default version of LWIP is 2.0.2
-if not GetDepend('RT_USING_LWIP132') and not GetDepend('RT_USING_LWIP141') and not GetDepend('RT_USING_LWIP202'):
+if not GetDepend('RT_USING_LWIP141') and not GetDepend('RT_USING_LWIP202'):
     AddDepend('RT_USING_LWIP202')
 
 for d in list:
diff --git a/components/net/lwip-1.4.1/src/arch/sys_arch.c b/components/net/lwip-1.4.1/src/arch/sys_arch.c
index d480242cd0..45c09e6137 100644
--- a/components/net/lwip-1.4.1/src/arch/sys_arch.c
+++ b/components/net/lwip-1.4.1/src/arch/sys_arch.c
@@ -1,11 +1,28 @@
 /*
- * File      : sys_arch.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012, RT-Thread Development Team
+ * COPYRIGHT (C) 2006-2018, RT-Thread Development Team
+ * All rights reserved.
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/net/lwip-1.4.1/src/netif/ethernetif.c b/components/net/lwip-1.4.1/src/netif/ethernetif.c
index ddebaf347e..943d95f9ed 100644
--- a/components/net/lwip-1.4.1/src/netif/ethernetif.c
+++ b/components/net/lwip-1.4.1/src/netif/ethernetif.c
@@ -1,24 +1,6 @@
 /*
- * File      : ethernetif.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2010, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-07-07     Bernard      fix send mail to mailbox issue.
- * 2011-07-30     mbbill       port lwIP 1.4.0 to RT-Thread
- * 2012-04-10     Bernard      add more compatible with RT-Thread.
- * 2012-11-12     Bernard      The network interface can be initialized
- *                             after lwIP initialization.
- * 2013-02-28     aozima       fixed list_tcps bug: ipaddr_ntoa isn't reentrant.
- */
-
-/*
  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * COPYRIGHT (C) 2006-2010, RT-Thread Development Team
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
@@ -47,6 +29,14 @@
  *
  * Author: Adam Dunkels <[email protected]>
  *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-07-07     Bernard      fix send mail to mailbox issue.
+ * 2011-07-30     mbbill       port lwIP 1.4.0 to RT-Thread
+ * 2012-04-10     Bernard      add more compatible with RT-Thread.
+ * 2012-11-12     Bernard      The network interface can be initialized
+ *                             after lwIP initialization.
+ * 2013-02-28     aozima       fixed list_tcps bug: ipaddr_ntoa isn't reentrant.
  */
 
 #include <rtthread.h>
diff --git a/components/net/lwip-2.0.2/src/arch/sys_arch.c b/components/net/lwip-2.0.2/src/arch/sys_arch.c
index 97d962e63e..7a92170886 100644
--- a/components/net/lwip-2.0.2/src/arch/sys_arch.c
+++ b/components/net/lwip-2.0.2/src/arch/sys_arch.c
@@ -1,11 +1,28 @@
 /*
- * File      : sys_arch.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012, RT-Thread Development Team
+ * COPYRIGHT (C) 2006-2018, RT-Thread Development Team
+ * All rights reserved.
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/net/lwip-2.0.2/src/netif/ethernetif.c b/components/net/lwip-2.0.2/src/netif/ethernetif.c
index 8ab1727bd3..8b05e592d4 100644
--- a/components/net/lwip-2.0.2/src/netif/ethernetif.c
+++ b/components/net/lwip-2.0.2/src/netif/ethernetif.c
@@ -1,25 +1,6 @@
 /*
- * File      : ethernetif.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2010, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-07-07     Bernard      fix send mail to mailbox issue.
- * 2011-07-30     mbbill       port lwIP 1.4.0 to RT-Thread
- * 2012-04-10     Bernard      add more compatible with RT-Thread.
- * 2012-11-12     Bernard      The network interface can be initialized
- *                             after lwIP initialization.
- * 2013-02-28     aozima       fixed list_tcps bug: ipaddr_ntoa isn't reentrant.
- * 2016-08-18     Bernard      port to lwIP 2.0.0
- */
-
-/*
  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * COPYRIGHT (C) 2006-2018, RT-Thread Development Team
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
@@ -48,13 +29,15 @@
  *
  * Author: Adam Dunkels <[email protected]>
  *
- */
-
-/*
- * This file is a skeleton for developing Ethernet network interface
- * drivers for lwIP. Add code to the low_level functions and do a
- * search-and-replace for the word "ethernetif" to replace it with
- * something that better describes your network interface.
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-07-07     Bernard      fix send mail to mailbox issue.
+ * 2011-07-30     mbbill       port lwIP 1.4.0 to RT-Thread
+ * 2012-04-10     Bernard      add more compatible with RT-Thread.
+ * 2012-11-12     Bernard      The network interface can be initialized
+ *                             after lwIP initialization.
+ * 2013-02-28     aozima       fixed list_tcps bug: ipaddr_ntoa isn't reentrant.
+ * 2016-08-18     Bernard      port to lwIP 2.0.0
  */
 
 #include "lwip/opt.h"
diff --git a/components/net/lwip_dhcpd/dhcp_server.c b/components/net/lwip_dhcpd/dhcp_server.c
index 3f0e7a6daf..c548ecfa98 100644
--- a/components/net/lwip_dhcpd/dhcp_server.c
+++ b/components/net/lwip_dhcpd/dhcp_server.c
@@ -2,23 +2,31 @@
  * File      : dhcp_server.c
  *             A simple DHCP server implementation
  *
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2013-2015, Shanghai Real-Thread Technology Co., Ltd
+ * COPYRIGHT (C) 2011-2018, Shanghai Real-Thread Technology Co., Ltd
  * http://www.rt-thread.com
+ * All rights reserved.
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
  *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/net/lwip_dhcpd/dhcp_server.h b/components/net/lwip_dhcpd/dhcp_server.h
index 910d0c4bf1..a8056540ec 100644
--- a/components/net/lwip_dhcpd/dhcp_server.h
+++ b/components/net/lwip_dhcpd/dhcp_server.h
@@ -2,23 +2,31 @@
  * File      : dhcp_server.h
  *             A simple DHCP server implementation
  *
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2013-2015, Shanghai Real-Thread Technology Co., Ltd
+ * COPYRIGHT (C) 2011-2018, Shanghai Real-Thread Technology Co., Ltd
  * http://www.rt-thread.com
+ * All rights reserved.
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
  *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/net/lwip_dhcpd/dhcp_server_raw.c b/components/net/lwip_dhcpd/dhcp_server_raw.c
index 061bd88097..6b359eea4e 100644
--- a/components/net/lwip_dhcpd/dhcp_server_raw.c
+++ b/components/net/lwip_dhcpd/dhcp_server_raw.c
@@ -1,25 +1,32 @@
 /*
  * File      : dhcp_server_raw.c
  *             A simple DHCP server implementation
- *
- * This file is part of RT-Thread RTOS
  * COPYRIGHT (C) 2011-2018, Shanghai Real-Thread Technology Co., Ltd
  * http://www.rt-thread.com
+ * All rights reserved.
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
  *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
  *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ * 
  * Change Logs:
  * Date           Author       Notes
  * 2014-04-01     Ren.Haibo    the first version
diff --git a/components/net/lwip_nat/ipv4_nat.c b/components/net/lwip_nat/ipv4_nat.c
index bf8c934976..e42311d28f 100644
--- a/components/net/lwip_nat/ipv4_nat.c
+++ b/components/net/lwip_nat/ipv4_nat.c
@@ -1,8 +1,8 @@
 /**
  * NAT - NAT implementation for lwIP supporting TCP/UDP and ICMP.
  * Copyright (c) 2009 Christian Walter, ?Embedded Solutions, Vienna 2009.
- *
  * Copyright (c) 2010 lwIP project ;-)
+ * COPYRIGHT (C) 2015, RT-Thread Development Team
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
@@ -27,28 +27,6 @@
  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  * OF SUCH DAMAGE.
  *
- * This file is part of the lwIP TCP/IP stack.
- */
-
-/*
- * File      : ipv4_nat.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2015, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  * Change Logs:
  * Date           Author       Notes
  * 2015-01-26     Hichard      porting to RT-Thread
diff --git a/components/net/lwip_nat/ipv4_nat.h b/components/net/lwip_nat/ipv4_nat.h
index b30ed98428..6b856f3c6d 100644
--- a/components/net/lwip_nat/ipv4_nat.h
+++ b/components/net/lwip_nat/ipv4_nat.h
@@ -1,8 +1,8 @@
 /**
  * NAT - NAT implementation for lwIP supporting TCP/UDP and ICMP.
  * Copyright (c) 2009 Christian Walter, ?Embedded Solutions, Vienna 2009.
- *
  * Copyright (c) 2010 lwIP project ;-)
+ * COPYRIGHT (C) 2015, RT-Thread Development Team
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
@@ -27,28 +27,6 @@
  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  * OF SUCH DAMAGE.
  *
- * This file is part of the lwIP TCP/IP stack.
- */
-
-/*
- * File      : ipv4_nat.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2015, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  * Change Logs:
  * Date           Author       Notes
  * 2015-01-26     Hichard      porting to RT-Thread
diff --git a/components/utilities/ymodem/ymodem.c b/components/utilities/ymodem/ymodem.c
index a1f21cf6c6..899ee56ac8 100644
--- a/components/utilities/ymodem/ymodem.c
+++ b/components/utilities/ymodem/ymodem.c
@@ -1,6 +1,8 @@
 /*
- * File      : ymodem.c
- * COPYRIGHT (C) 2012, Shanghai Real-Thread Technology Co., Ltd
+ * COPYRIGHT (C) 2012, Real-Thread Information Technology Ltd
+ * All rights reserved
+ *
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/utilities/ymodem/ymodem.h b/components/utilities/ymodem/ymodem.h
index 6de5acc8fc..45e8f2272e 100644
--- a/components/utilities/ymodem/ymodem.h
+++ b/components/utilities/ymodem/ymodem.h
@@ -1,14 +1,17 @@
-#ifndef __YMODEM_H__
-#define __YMODEM_H__
 /*
- * File      : ymodem.h
- * COPYRIGHT (C) 2012, Shanghai Real-Thread Technology Co., Ltd
+ * COPYRIGHT (C) 2012, Real-Thread Information Technology Ltd
+ * All rights reserved
+ *
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  * 2013-04-14     Grissiom     initial implementation
  */
 
+#ifndef __YMODEM_H__
+#define __YMODEM_H__
+
 #include "rtthread.h"
 
 /* The word "RYM" is stand for "Real-YModem". */
diff --git a/components/vmm/vmm.c b/components/vmm/vmm.c
index 3905d6fbd2..19cbed6810 100644
--- a/components/vmm/vmm.c
+++ b/components/vmm/vmm.c
@@ -1,26 +1,10 @@
 /*
  *  VMM startup file.
  *
- * COPYRIGHT (C) 2013-2014, Shanghai Real-Thread Technology Co., Ltd
- *
- *  This file is part of RT-Thread (http://www.rt-thread.org)
- *  Maintainer: bernard.xiong <bernard.xiong at gmail.com>
- *
- *  All rights reserved.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * All rights reserved
+ * 
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/vmm/vmm.h b/components/vmm/vmm.h
index a9582e1a90..83773617dd 100644
--- a/components/vmm/vmm.h
+++ b/components/vmm/vmm.h
@@ -1,26 +1,10 @@
 /*
  *  VMM startup file.
  *
- * COPYRIGHT (C) 2013, Shanghai Real-Thread Technology Co., Ltd
- *
- *  This file is part of RT-Thread (http://www.rt-thread.org)
- *  Maintainer: bernard.xiong <bernard.xiong at gmail.com>
- *
- *  All rights reserved.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * All rights reserved
+ * 
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/vmm/vmm_context.c b/components/vmm/vmm_context.c
index c39644901c..91641a483a 100644
--- a/components/vmm/vmm_context.c
+++ b/components/vmm/vmm_context.c
@@ -1,25 +1,8 @@
 /*
- * guest context on VMM
- *
- * COPYRIGHT (C) 2013-2014, Shanghai Real-Thread Technology Co., Ltd
- *
- *  This file is part of RT-Thread (http://www.rt-thread.org)
- *
- *  All rights reserved.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * All rights reserved
+ * 
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/vmm/vmm_context.h b/components/vmm/vmm_context.h
index 07abea3c73..019b681459 100644
--- a/components/vmm/vmm_context.h
+++ b/components/vmm/vmm_context.h
@@ -1,3 +1,14 @@
+/*
+ * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * All rights reserved
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2013-11-04     Grissiom     add comment
+ */
+
 #ifndef __VMM_CONTEXT_H__
 #define __VMM_CONTEXT_H__
 
diff --git a/components/vmm/vmm_iomap.c b/components/vmm/vmm_iomap.c
index ec292ae616..55bd1ac36e 100644
--- a/components/vmm/vmm_iomap.c
+++ b/components/vmm/vmm_iomap.c
@@ -1,26 +1,10 @@
 /*
  *  VMM IO map table
  *
- * COPYRIGHT (C) 2013, Shanghai Real-Thread Technology Co., Ltd
- *
- *  This file is part of RT-Thread (http://www.rt-thread.org)
- *  Maintainer: bernard.xiong <bernard.xiong at gmail.com>
- *
- *  All rights reserved.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * All rights reserved
+ * 
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/components/vmm/vmm_vector.c b/components/vmm/vmm_vector.c
index 41cc39d282..d7909607ce 100644
--- a/components/vmm/vmm_vector.c
+++ b/components/vmm/vmm_vector.c
@@ -1,26 +1,10 @@
 /*
  *  VMM vector handle
- *
- * COPYRIGHT (C) 2013-2014, Shanghai Real-Thread Technology Co., Ltd
- *
- *  This file is part of RT-Thread (http://www.rt-thread.org)
- *  Maintainer: bernard.xiong <bernard.xiong at gmail.com>
- *
- *  All rights reserved.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * All rights reserved
+ * 
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes