diff --git a/LICENSE b/LICENSE
index 4a7fb367894ca1a5b4fb567e220c41a8725d00fe..04199a45c8a87865a975360c8b630ef708e97b97 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,7 +1,12 @@
 NewIP - New IP Stack
 Copyright (c) 2022 Huawei Device Co., Ltd. All rights reserved.
 
-you can use it under the terms of the GPL V2 and the BSD2 license.
+NewIP is dual licensed: you can use it under the terms of the GPL V2 and the BSD2 license.
+
+The code/linux/ subdirectorie is licensed under the GPL V2 License.
+The code/ommon/ subdirectorie is licensed under 2-Clause BSD License.
+The examples/ subdirectorie is licensed under 2-Clause BSD License.
+
 a) GNU General Public License version 2, (https://opensource.org/licenses/GPL-2.0)
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License as
diff --git a/OAT.xml b/OAT.xml
index 256ed4367b0011650881f4210d850fcc173713be..0ed7809d475eed5c83412b424581009f77e05a11 100644
--- a/OAT.xml
+++ b/OAT.xml
@@ -55,29 +55,22 @@ Note:If the text contains special characters, please escape them according to th
 -->
 <configuration>
 	<oatconfig>
-		<licensefile>COPYING</licensefile>
 		<policylist>
 			<policy name="projectPolicy" desc="">
-				<policyitem type="compatibility" name="GPL-1.0+"                 path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="GPL-2.0+"                 path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="SPDX:LGPL-2.1"            path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="SPDX:GPL-2.0+"            path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="GPLStyleLicense"          path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="Linux-OpenIB"             path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="SPDX:Zlib"                path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="SPDX:X11"                 path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="Unicode-TOU"              path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="HPND-sell-variant"        path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="zlib-acknowledgement"     path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="Linux-syscall-note"       path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="LGPLStyleLicense"         path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="MPL-1.1"                  path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="GCC-exception-2.0"        path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="GPL-COMPATIBLE-ID"        path=".*" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="BSD-2-Clause"             path="code/common/.*"      desc="NewIP common code"/>
-				<policyitem type="compatibility" name="Linux-syscall-note"       path="examples/nip_uapi.h" desc="linux kernel license"/>
-				<policyitem type="compatibility" name="BSD-2-Clause"             path="examples/.*"         desc="NewIP examples code"/>
-				<policyitem type="copyright"     name="Huawei Device Co., Ltd."  path="code/.*"             desc="huawei copyright"/>
+				<policyitem type="license" name="GPL" path="code\linux\.*"                        desc="linux kernel"/>
+				<policyitem type="license" name="BSD" path="code\common\.*"                       desc="NewIP common code"/>
+				<policyitem type="license" name="BSD" path="code\linux\net\newip\nip_checksum.c"  desc="NewIP common code (soft link file)"/>
+				<policyitem type="license" name="BSD" path="code\linux\net\newip\nip_checksum.h"  desc="NewIP common code (soft link file)"/>
+				<policyitem type="license" name="BSD" path="code\linux\net\newip\nip_addr.c"      desc="NewIP common code (soft link file)"/>
+				<policyitem type="license" name="BSD" path="code\linux\net\newip\nip_addr.h"      desc="NewIP common code (soft link file)"/>
+				<policyitem type="license" name="BSD" path="code\linux\net\newip\nip_hdr_decap.c" desc="NewIP common code (soft link file)"/>
+				<policyitem type="license" name="BSD" path="code\linux\net\newip\nip_hdr_encap.c" desc="NewIP common code (soft link file)"/>
+				<policyitem type="license" name="BSD" path="code\linux\net\newip\nip_hdr.h"       desc="NewIP common code (soft link file)"/>
+				<policyitem type="license" name="GPL" path="examples\nip_uapi.h"                  desc="GPL-2.0 WITH Linux-syscall-note"/>
+				<policyitem type="license" name="BSD" path="examples\.*"                          desc="NewIP examples code"/>
+				<policyitem type="copyright" name="Huawei Device Co., Ltd." path="code/.*"        desc="huawei copyright"/>
+				<policyitem type="license" name="GPL" path="LICENSE"                              desc="GPL and BSD dual license"/>
+				<policyitem type="license" name="BSD" path="LICENSE"                              desc="GPL and BSD dual license"/>
 			</policy>
 		</policylist>
 		<filefilterlist>
diff --git a/code/linux/include/trace/hooks/nip_hooks.h b/code/linux/include/trace/hooks/nip_hooks.h
index 9d8c14df698279c1cf4995963f0a205b8fc2bab3..eea8c11fc51006745026083e5f455d1b83f65507 100644
--- a/code/linux/include/trace/hooks/nip_hooks.h
+++ b/code/linux/include/trace/hooks/nip_hooks.h
@@ -2,7 +2,7 @@
 /*
  * NewIP Hooks
  *
- * Copyright (c) 2022, Huawei Tech. Co., Ltd.
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
  */
 #ifdef CONFIG_NEWIP_HOOKS