diff --git a/BUILD.gn b/BUILD.gn
old mode 100755
new mode 100644
index 5082f8b4f480fbf282e190706d2a27d3e84ffb47..15dd462f68ba0fb6643c72352089146cb6cc1d3d
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (C) 2021 Huawei Device Co., Ltd.
+# Copyright (C) 2021-2022 Huawei Device Co., Ltd.
 # Licensed 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
diff --git a/LICENSE b/LICENSE
old mode 100755
new mode 100644
diff --git a/README.md b/README.md
old mode 100755
new mode 100644
diff --git a/bundle.json b/bundle.json
old mode 100755
new mode 100644
diff --git a/figures/dataclassification.png b/figures/dataclassification.png
old mode 100755
new mode 100644
diff --git a/figures/dataclassification_zh.png b/figures/dataclassification_zh.png
old mode 100755
new mode 100644
diff --git a/frameworks/datatransmitmgr/dev_slinfo_adpt.c b/frameworks/datatransmitmgr/dev_slinfo_adpt.c
index 58b7226dab887c22fcf8acfb1eb85569fca39c91..e332f03b8fa1824421068424cc805e5102035d9e 100644
--- a/frameworks/datatransmitmgr/dev_slinfo_adpt.c
+++ b/frameworks/datatransmitmgr/dev_slinfo_adpt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022 Huawei Device Co., Ltd.
  * Licensed 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
@@ -131,7 +131,7 @@ void FinishDevslEnv(void)
     return;
 }
 
-int32_t GetDeviceSecLevelByUdid(uint8_t *udid, uint32_t udidLen, int32_t *devLevel)
+int32_t GetDeviceSecLevelByUdid(const uint8_t *udid, uint32_t udidLen, int32_t *devLevel)
 {
     DATA_SEC_LOG_INFO("Enter GetDeviceSecLevelByUdid...");
     if (g_deviceSecEnv.requestDeviceSecurityInfo == NULL) {
@@ -232,7 +232,7 @@ void OnApiDeviceSecInfoCallback(const DeviceIdentify *identify, struct DeviceSec
     DATA_SEC_LOG_INFO("OnApiDeviceSecInfoCallback done!");
 }
 
-int32_t GetDeviceSecLevelByUdidAsync(uint8_t *udid, uint32_t udidLen)
+int32_t GetDeviceSecLevelByUdidAsync(const uint8_t *udid, uint32_t udidLen)
 {
     DATA_SEC_LOG_INFO("Enter GetDeviceSecLevelByUdidAsync...");
     if (g_deviceSecEnv.requestDeviceSecurityInfoAsync == NULL) {
@@ -299,7 +299,7 @@ int32_t GetDataSecLevelByDevSecLevel(int32_t devLevel)
         }
     }
     if (i >= n) {
-        DATA_SEC_LOG_WARN("GetDataSecLevelBySecLevel, unknow device level tag: %d", devLevel);
+        DATA_SEC_LOG_WARN("GetDataSecLevelBySecLevel, unknown device level tag: %d", devLevel);
     }
     return DATA_SEC_LEVEL0;
 }
diff --git a/frameworks/datatransmitmgr/dev_slinfo_list.c b/frameworks/datatransmitmgr/dev_slinfo_list.c
index 832902dae1fb7b89d4f26e60957b91c0d3bd0c15..1955a2ceb03adaf87ac7e871963d1320bcb8e164 100644
--- a/frameworks/datatransmitmgr/dev_slinfo_list.c
+++ b/frameworks/datatransmitmgr/dev_slinfo_list.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022 Huawei Device Co., Ltd.
  * Licensed 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
@@ -35,12 +35,13 @@ struct DATASLListParams* InitList(void)
     return list;
 }
 
-static void UpdateListNode(struct DATASLListParams *new, struct DATASLListParams *prev, struct DATASLListParams *next)
+static void UpdateListNode(struct DATASLListParams *newListNode,
+    struct DATASLListParams *prevListNode, struct DATASLListParams *nextListNode)
 {
-    next->prev = new;
-    new->next = next;
-    new->prev = prev;
-    prev->next = new;
+    nextListNode->prev = newListNode;
+    newListNode->next = nextListNode;
+    newListNode->prev = prevListNode;
+    prevListNode->next = newListNode;
 }
 
 int32_t PushListNode(struct DATASLListParams *list, struct DATASLCallbackParams *callbackParams)
@@ -53,7 +54,7 @@ int32_t PushListNode(struct DATASLListParams *list, struct DATASLCallbackParams
     }
 
     UpdateListNode(newList, list->prev, list);
-    newList->callbackParams = (struct DATASLCallbackParams*)callbackParams;
+    newList->callbackParams = callbackParams;
     pthread_mutex_unlock(&gMutex);
     return DEVSL_SUCCESS;
 }
diff --git a/frameworks/datatransmitmgr/dev_slinfo_mgr.c b/frameworks/datatransmitmgr/dev_slinfo_mgr.c
index f55165b4398226dd85103ebc86ea030aa5621dbc..cad497643b462e4283f932aa62e941844fd780f3 100644
--- a/frameworks/datatransmitmgr/dev_slinfo_mgr.c
+++ b/frameworks/datatransmitmgr/dev_slinfo_mgr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022 Huawei Device Co., Ltd.
  * Licensed 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
@@ -12,6 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 #include "dev_slinfo_list.h"
 #include "dev_slinfo_adpt.h"
 #include "dev_slinfo_log.h"
diff --git a/interfaces/innerkits/datatransmitmgr/BUILD.gn b/interfaces/innerkits/datatransmitmgr/BUILD.gn
index 137b0d3323af050a4cc8115e1c3bf578b270968d..b3875a469a0a8ca11fbe29a915efe70e591dd364 100644
--- a/interfaces/innerkits/datatransmitmgr/BUILD.gn
+++ b/interfaces/innerkits/datatransmitmgr/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021-2022 Huawei Device Co., Ltd.
+# Copyright (C) 2022 Huawei Device Co., Ltd.
 # Licensed 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
@@ -9,7 +9,7 @@
 # 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.
+# limitations under the License.
 
 import("//build/ohos.gni")
 
diff --git a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_adpt.h b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_adpt.h
index b93f9f8ce07e193b11367ed62ef7b832a6fdd156..437225c3a6138a72fae2209e02d4c4b362f1a451 100644
--- a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_adpt.h
+++ b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_adpt.h
@@ -54,11 +54,11 @@ int32_t StartDevslEnv(void);
 
 void FinishDevslEnv(void);
 
-int32_t GetDeviceSecLevelByUdid(uint8_t *udid, uint32_t udidLen, int32_t *devLevel);
+int32_t GetDeviceSecLevelByUdid(const uint8_t *udid, uint32_t udidLen, int32_t *devLevel);
 
 int32_t CompareUdid(DEVSLQueryParams *queryParamsL, DEVSLQueryParams *queryParamsR);
 
-int32_t GetDeviceSecLevelByUdidAsync(uint8_t *udid, uint32_t udidLen);
+int32_t GetDeviceSecLevelByUdidAsync(const uint8_t *udid, uint32_t udidLen);
 
 int32_t GetDataSecLevelByDevSecLevel(int32_t devLevel);
 
diff --git a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_list.h b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_list.h
index 11ee1db4c27adbfb196b33413dff1b6e218d2c0b..d2a76a435803d527edd8472a9cb1e5bde1980ce5 100644
--- a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_list.h
+++ b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_list.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022 Huawei Device Co., Ltd.
  * Licensed 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
diff --git a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_log.h b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_log.h
index 3d3f7a9ea964489e9674fdc2b96294a598a4486a..e572d9af354d92643f85f235a508b5f51564e2f2 100644
--- a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_log.h
+++ b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_log.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022 Huawei Device Co., Ltd.
  * Licensed 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
diff --git a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_mgr.h b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_mgr.h
index ccac98d821164d8d30e0bde6ec3178e606ee912d..10dc2f28bc3869a93b8767ec7f1d68d459b7cd80 100644
--- a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_mgr.h
+++ b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_mgr.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022 Huawei Device Co., Ltd.
  * Licensed 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
diff --git a/test/unittest/datatransmitmgr/BUILD.gn b/test/unittest/datatransmitmgr/BUILD.gn
index 062bc3cfd149cfe66926de79d25c1d5597645ad1..32e47cb29377d3b4c3c78b59006563e83cbba0bc 100644
--- a/test/unittest/datatransmitmgr/BUILD.gn
+++ b/test/unittest/datatransmitmgr/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (C) 2021-2022 Huawei Device Co., Ltd.
+# Copyright (C) 2022 Huawei Device Co., Ltd.
 # Licensed 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
@@ -9,7 +9,7 @@
 # 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.
+# limitations under the License.
 
 import("//build/test.gni")
 module_output_path = "dataclassification/datasecuritylevel"
diff --git a/test/unittest/datatransmitmgr/DevSLMgrTest.cpp b/test/unittest/datatransmitmgr/DevSLMgrTest.cpp
index b3f14b4fc061ecb98a35998af2ad46db9053f20a..5255e4165eb8b599d965e292b144ac7594869682 100644
--- a/test/unittest/datatransmitmgr/DevSLMgrTest.cpp
+++ b/test/unittest/datatransmitmgr/DevSLMgrTest.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022 Huawei Device Co., Ltd.
  * Licensed 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
diff --git a/test/unittest/datatransmitmgr/DevSLMgrTest.h b/test/unittest/datatransmitmgr/DevSLMgrTest.h
index 45ea6022b4f2b2d6ae7264a7836d766e3499f8cb..09baf0b8131e54141fcc5fe23b36a247f5e5c090 100644
--- a/test/unittest/datatransmitmgr/DevSLMgrTest.h
+++ b/test/unittest/datatransmitmgr/DevSLMgrTest.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022 Huawei Device Co., Ltd.
  * Licensed 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