diff --git a/interfaces/innerkits/fs_manager/BUILD.gn b/interfaces/innerkits/fs_manager/BUILD.gn
index 1722527e5..af22a6d89 100755
--- a/interfaces/innerkits/fs_manager/BUILD.gn
+++ b/interfaces/innerkits/fs_manager/BUILD.gn
@@ -33,6 +33,7 @@ ohos_static_library("libfsmanager_static") {
       "//base/startup/init/interfaces/innerkits/include",
       "//third_party/bounds_checking_function/include",
       "//base/startup/init/interfaces/innerkits/include/param",
+      "//base/startup/init/interfaces/innerkits/init_module_engine/include",
       "//base/startup/init/services/log",
       "//base/startup/init/services/param/include",
     ]
diff --git a/interfaces/innerkits/fs_manager/fstab_mount.c b/interfaces/innerkits/fs_manager/fstab_mount.c
index 36cf64b3a..7a5e19ae7 100755
--- a/interfaces/innerkits/fs_manager/fstab_mount.c
+++ b/interfaces/innerkits/fs_manager/fstab_mount.c
@@ -30,6 +30,7 @@
 #ifdef SUPPORT_HVB
 #include "dm_verity.h"
 #endif
+#include "init_filesystems.h"
 
 #ifdef __cplusplus
 #if __cplusplus
@@ -58,20 +59,45 @@ __attribute__((weak)) void InitPostMount(const char *mountPoint, int rc)
 {
 }
 
+static const SUPPORTED_FILE_SYSTEM supportedFileSystems[] = {
+    { "ext4", 0 },
+    { "f2fs", 1 },
+    { "overlay", 0 },
+    { NULL, 0 }
+};
+
+static void **extendedFileSystems_ = NULL;
+
+void InitSetExtendedFileSystems(const SUPPORTED_FILE_SYSTEM *extendedFileSystems[])
+{
+    extendedFileSystems_ = (void **)extendedFileSystems;
+}
+
+static const SUPPORTED_FILE_SYSTEM *GetSupportedFileSystemInfo(const char *fsType)
+{
+    return (const SUPPORTED_FILE_SYSTEM *)OH_ExtendableStrDictGet((void **)supportedFileSystems,
+           sizeof(SUPPORTED_FILE_SYSTEM), fsType, 0, extendedFileSystems_);
+}
+
+static bool IsSupportedDataType(const char *fsType)
+{
+    const SUPPORTED_FILE_SYSTEM *item = GetSupportedFileSystemInfo(fsType);
+    if (item == NULL) {
+        return false;
+    }
+    if (item->for_userdata) {
+        return true;
+    }
+    return false;
+}
+
 bool IsSupportedFilesystem(const char *fsType)
 {
-    bool supported = false;
-    if (fsType != NULL) {
-        static const char *supportedFilesystem[] = {"ext4", "f2fs", "overlay", NULL};
-        int index = 0;
-        while (supportedFilesystem[index] != NULL) {
-            if (strcmp(supportedFilesystem[index++], fsType) == 0) {
-                supported = true;
-                break;
-            }
-        }
+    const SUPPORTED_FILE_SYSTEM *item = GetSupportedFileSystemInfo(fsType);
+    if (item == NULL) {
+        return false;
     }
-    return supported;
+    return true;
 }
 
 static int ExecCommand(int argc, char **argv)
@@ -118,7 +144,7 @@ int DoFormat(const char *devPath, const char *fsType)
         int argc = ARRAY_LENGTH(formatCmds);
         char **argv = (char **)formatCmds;
         ret = ExecCommand(argc, argv);
-    } else if (strcmp(fsType, "f2fs") == 0) {
+    } else if (IsSupportedDataType(fsType)) {
 #ifdef __MUSL__
         char *formatCmds[] = {
             "/bin/mkfs.f2fs", "-d1", "-O", "encrypt", "-O", "quota", "-O", "verity", "-O", "project_quota,extra_attr",
@@ -356,7 +382,7 @@ int MountOneItem(FstabItem *item)
         WaitForFile(item->deviceName, WAIT_MAX_SECOND);
     }
 
-    if (strcmp(item->fsType, "f2fs") == 0 && strcmp(item->mountPoint, "/data") == 0) {
+    if (strcmp(item->mountPoint, "/data") == 0 && IsSupportedDataType(item->fsType)) {
         int ret = DoResizeF2fs(item->deviceName, 0, item->fsManagerFlags);
         if (ret != 0) {
             BEGET_LOGE("Failed to resize.f2fs dir %s , ret = %d", item->deviceName, ret);
diff --git a/interfaces/innerkits/include/init_utils.h b/interfaces/innerkits/include/init_utils.h
index 842364071..754b42523 100644
--- a/interfaces/innerkits/include/init_utils.h
+++ b/interfaces/innerkits/include/init_utils.h
@@ -103,7 +103,69 @@ int GetParameterFromCmdLine(const char *paramName, char *value, size_t valueLen)
  * @param ignoreCase 0 means exact match, others mean ignore case
  * @return return 0 if succeed; other values if failed.
  */
-int StrArrayGetIndex(const char *strArray[], const char *target, int ignoreCase);
+int OH_StrArrayGetIndex(const char *strArray[], const char *target, int ignoreCase);
+
+/**
+ * @brief Get string index from a string array with extended strings
+ *
+ * @param strArray string array
+ *     Attension: last item in the array must be NULL, for example:
+ *     const char *strArray[] = { "val1", "val2", NULL }
+ * @param target string to be matched
+ * @param ignoreCase 0 means exact match, others mean ignore case
+ * @param extend optional extended strings array, last string must be NULL
+ * @return return 0 if succeed; other values if failed.
+ */
+int OH_ExtendableStrArrayGetIndex(const char *strArray[], const char *target, int ignoreCase, const char *extend[]);
+
+/**
+ * @brief Get string dictionary from a string dictionary array
+ *
+ * @param strDict string dictionary array
+ *     Attension: last item in the array must be NULL, for example:
+ *     Each item must be a structure with "const char *" as the first element
+ *     For example:
+ *     typedef {
+ *         const char *key;   // First element must be "const char *"
+ *         const char *value; // Arbitrary elements
+ *         // Optionally add more elements
+ *     } STRING_DICT_ST;
+ * @param target string to be matched
+ * @param ignoreCase 0 means exact match, others mean ignore case
+ * @return return item pointer if succeed; NULL if failed
+ * @example
+ * // Define a name-value pair as dictionary item
+ * typedef struct {
+ *     const char *name;
+ *     const char *value;
+ * } NAME_VALUE_ST;
+
+ * // Fill the dictionary values
+ * NAME_VALUE_ST dict[] = { { "key1", "val1" }, { "key2", "val2" }};
+
+ * // Find by key name
+ * NAME_VALUE_ST *found = (NAME_VALUE_ST *)StrDictGetIndex((void **)dict, sizeof(NAME_VALUE_ST), "key1", FALSE);
+ */
+void *OH_StrDictGet(void **strDict, int dictSize, const char *target, int ignoreCase);
+
+/**
+ * @brief Get string dictionary from a string dictionary array and extended string dictionary
+ *
+ * @param strDict string dictionary array
+ *     Attension: last item in the array must be NULL, for example:
+ *     Each item must be a structure with "const char *" as the first element
+ *     For example:
+ *     typedef {
+ *         const char *key;   // First element must be "const char *"
+ *         const char *value; // Arbitrary elements
+ *         // Optionally add more elements
+ *     } STRING_DICT_ST;
+ * @param target string to be matched
+ * @param ignoreCase 0 means exact match, others mean ignore case
+ * @param extendStrDict optional extended strings dictionary array, last item must be NULL
+ * @return return item pointer if succeed; NULL if failed.
+ */
+void *OH_ExtendableStrDictGet(void **strDict, int dictSize, const char *target, int ignoreCase, void **extendStrDict);
 
 long long GetUptimeInMicroSeconds(const struct timespec *uptime);
 
diff --git a/interfaces/innerkits/init_module_engine/include/init_filesystems.h b/interfaces/innerkits/init_module_engine/include/init_filesystems.h
new file mode 100755
index 000000000..f79b7c372
--- /dev/null
+++ b/interfaces/innerkits/init_module_engine/include/init_filesystems.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2023 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
+ *
+ * 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 STARTUP_INIT_SUPPORTED_FILE_SYSTEMS_H
+#define STARTUP_INIT_SUPPORTED_FILE_SYSTEMS_H
+
+#ifdef __cplusplus
+#if __cplusplus
+extern "C" {
+#endif
+#endif
+
+typedef struct tagSUPPORTED_FILE_SYSTEM {
+    const char *fs_name;
+    int for_userdata;
+} SUPPORTED_FILE_SYSTEM;
+
+void InitSetExtendedFileSystems(const SUPPORTED_FILE_SYSTEM *extendedFileSystems[]);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif
+#endif
+#endif
diff --git a/interfaces/innerkits/init_module_engine/include/init_module_engine.h b/interfaces/innerkits/init_module_engine/include/init_module_engine.h
index 64e29dbb1..8a1bd582f 100755
--- a/interfaces/innerkits/init_module_engine/include/init_module_engine.h
+++ b/interfaces/innerkits/init_module_engine/include/init_module_engine.h
@@ -23,6 +23,7 @@
 #include "init_modulemgr.h"
 #include "init_cmdexecutor.h"
 #include "init_running_hooks.h"
+#include "init_filesystems.h"
 
 #ifdef __cplusplus
 #if __cplusplus
diff --git a/interfaces/innerkits/init_module_engine/stub/libinit.stub.json b/interfaces/innerkits/init_module_engine/stub/libinit.stub.json
index 33e5b4030..eceaff307 100644
--- a/interfaces/innerkits/init_module_engine/stub/libinit.stub.json
+++ b/interfaces/innerkits/init_module_engine/stub/libinit.stub.json
@@ -6,6 +6,7 @@
     { "name": "AddCmdExecutor" },
     { "name": "RemoveCmdExecutor" },
     { "name": "HookMgrAdd" },
+    { "name": "HookMgrAddEx" },
     { "name": "HookMgrDel" },
     { "name": "GetBootStageHookMgr"},
     { "name": "InitAddGlobalInitHook" },
@@ -15,6 +16,7 @@
     { "name": "InitAddPostCfgLoadHook" },
     { "name": "InitModuleMgrInstall" },
     { "name": "InitModuleMgrUnInstall" },
+    { "name": "InitSetExtendedFileSystems" },
     { "name": "AutorunModuleMgrUnInstall" },
     { "name": "StartupLog" },
     { "name": "DoJobNow" },
@@ -82,5 +84,10 @@
     { "name": "InitAddServiceParseHook" },
     { "name": "InitAddJobParseHook" },
     { "name": "InitAddPostPersistParamLoadHook"},
-    { "name": "InitServiceRestartHook" }
+    { "name": "InitServiceRestartHook" },
+    { "name": "OH_StrArrayGetIndex" },
+    { "name": "OH_ExtendableStrArrayGetIndex" },
+    { "name": "OH_StrDictGet" },
+    { "name": "OH_ExtendableStrDictGet" },
+    { "name": "GetUptimeInMicroSeconds" }
 ]
diff --git a/interfaces/innerkits/libbegetutil.versionscript b/interfaces/innerkits/libbegetutil.versionscript
index 3b32a5c45..4f1d947ab 100644
--- a/interfaces/innerkits/libbegetutil.versionscript
+++ b/interfaces/innerkits/libbegetutil.versionscript
@@ -148,6 +148,10 @@
     GetDistributionOSApiVersion;
     GetDistributionOSReleaseType;
     SaveParameters;
+    OH_StrArrayGetIndex;
+    OH_ExtendableStrArrayGetIndex;
+    OH_StrDictGet;
+    OH_ExtendableStrDictGet;
   local:
     *;
-};
\ No newline at end of file
+};
diff --git a/services/utils/init_utils.c b/services/utils/init_utils.c
index 678d5931f..8871de374 100644
--- a/services/utils/init_utils.c
+++ b/services/utils/init_utils.c
@@ -711,31 +711,86 @@ uint32_t IntervalTime(struct timespec *startTime, struct timespec *endTime)
     return diff;
 }
 
-int StrArrayGetIndex(const char *strArray[], const char *target, int ignoreCase)
+typedef int (*str_compare)(const char *s1, const char *s2);
+int OH_ExtendableStrArrayGetIndex(const char *strArray[], const char *target, int ignoreCase, const char *extend[])
 {
     int i;
+    int idx;
+    str_compare cmp = strcmp;
 
-    if ((target == NULL) || (target[0] == '\0')) {
+    if ((strArray == NULL) || (target == NULL) || (target[0] == '\0')) {
         return -1;
     }
 
     if (ignoreCase) {
-        for (i = 0; strArray[i] != NULL; i++) {
-            if (strcasecmp(strArray[i], target) == 0) {
-                return i;
-            }
-        }
-        return -1;
+        cmp = strcasecmp;
     }
 
     for (i = 0; strArray[i] != NULL; i++) {
-        if (strcmp(strArray[i], target) == 0) {
+        if (cmp(strArray[i], target) == 0) {
             return i;
         }
     }
+    if (extend == NULL) {
+        return -1;
+    }
+    idx = 0;
+    while (extend[idx] != NULL) {
+        if (cmp(extend[idx], target) == 0) {
+            return i + idx;
+        }
+        idx++;
+    }
     return -1;
 }
 
+int OH_StrArrayGetIndex(const char *strArray[], const char *target, int ignoreCase)
+{
+    return OH_ExtendableStrArrayGetIndex(strArray, target, ignoreCase, NULL);
+}
+
+void *OH_ExtendableStrDictGet(void **strDict, int dictSize, const char *target, int ignoreCase, void **extendStrDict)
+{
+    int i;
+    const char *pos;
+    str_compare cmp = strcmp;
+
+    if ((strDict == NULL) || (dictSize < sizeof(const char *)) || (target == NULL) || (target[0] == '\0')) {
+        return NULL;
+    }
+
+    if (ignoreCase) {
+        cmp = strcasecmp;
+    }
+
+    i = 0;
+    pos = (const char *)strDict;
+    while (*pos != '\0') {
+        if (cmp(*(const char **)pos, target) == 0) {
+            return (void *)pos;
+        }
+        i++;
+        pos = pos + dictSize;
+    }
+    if (extendStrDict == NULL) {
+        return NULL;
+    }
+    pos = (const char *)extendStrDict;
+    while (*pos != '\0') {
+        if (cmp(*(const char **)pos, target) == 0) {
+            return (void *)pos;
+        }
+        i++;
+        pos = pos + dictSize;
+    }
+    return NULL;
+}
+
+void *OH_StrDictGet(void **strDict, int dictSize, const char *target, int ignoreCase)
+{
+    return OH_ExtendableStrDictGet(strDict, dictSize, target, ignoreCase, NULL);
+}
+
 long long GetUptimeInMicroSeconds(const struct timespec *uptime)
 {
     struct timespec now;
diff --git a/test/unittest/BUILD.gn b/test/unittest/BUILD.gn
index dea00104a..43097261e 100644
--- a/test/unittest/BUILD.gn
+++ b/test/unittest/BUILD.gn
@@ -211,6 +211,7 @@ ohos_unittest("init_unittest") {
     "//base/startup/init/interfaces/innerkits/syspara/param_wrapper.cpp",
     "innerkits/hookmgr_unittest.cpp",
     "innerkits/modulemgr_unittest.cpp",
+    "innerkits/strutil_unittest.cpp",
   ]
 
   configs = [ "//base/startup/init/test/unittest:utest_config" ]
diff --git a/test/unittest/innerkits/strutil_unittest.cpp b/test/unittest/innerkits/strutil_unittest.cpp
new file mode 100755
index 000000000..a0adf7908
--- /dev/null
+++ b/test/unittest/innerkits/strutil_unittest.cpp
@@ -0,0 +1,416 @@
+/*
+ * Copyright (c) 2021 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
+ *
+ * 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 <cinttypes>
+#include <gtest/gtest.h>
+#include "init_utils.h"
+
+using namespace testing::ext;
+using namespace std;
+
+namespace init_ut {
+class StrUtilUnitTest : public testing::Test {
+public:
+    static void SetUpTestCase(void) {};
+    static void TearDownTestCase(void) {};
+    void SetUp() {};
+    void TearDown() {};
+};
+
+HWTEST_F(StrUtilUnitTest, StrArrayGetIndex_unit_test, TestSize.Level1)
+{
+    int ret;
+    const char *strArray[] = { "a1", "a2", "a3", NULL};
+
+    // Invalid arguments test
+    ret = OH_StrArrayGetIndex(NULL, "test", 0);
+    EXPECT_EQ(ret, -1);
+    ret = OH_StrArrayGetIndex(NULL, NULL, 0);
+    EXPECT_EQ(ret, -1);
+    ret = OH_StrArrayGetIndex(strArray, NULL, 0);
+    EXPECT_EQ(ret, -1);
+
+    // Matched
+    ret = OH_StrArrayGetIndex(strArray, "a1", 0);
+    EXPECT_EQ(ret, 0);
+    ret = OH_StrArrayGetIndex(strArray, "a2", 0);
+    EXPECT_EQ(ret, 1);
+    ret = OH_StrArrayGetIndex(strArray, "a3", 0);
+    EXPECT_EQ(ret, 2);
+
+    // Not matched
+    ret = OH_StrArrayGetIndex(strArray, "aa1", 0);
+    EXPECT_EQ(ret, -1);
+    ret = OH_StrArrayGetIndex(strArray, "A1", 0);
+    EXPECT_EQ(ret, -1);
+    ret = OH_StrArrayGetIndex(strArray, "A2", 0);
+    EXPECT_EQ(ret, -1);
+    ret = OH_StrArrayGetIndex(strArray, "A3", 0);
+    EXPECT_EQ(ret, -1);
+
+    // Ignore case
+    ret = OH_StrArrayGetIndex(strArray, "A1", 1);
+    EXPECT_EQ(ret, 0);
+    ret = OH_StrArrayGetIndex(strArray, "A2", 2);
+    EXPECT_EQ(ret, 1);
+    ret = OH_StrArrayGetIndex(strArray, "A3", 3);
+    EXPECT_EQ(ret, 2);
+}
+
+HWTEST_F(StrUtilUnitTest, OH_ExtendableStrArrayGetIndex_unitest, TestSize.Level1)
+{
+    int ret;
+    const char *strArray[] = { "a1", "a2", "a3", NULL};
+    const char *extendStrArray[] = { "a4", "a5", "a6", NULL};
+
+    // Matched
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "a4", 0, extendStrArray);
+    EXPECT_EQ(ret, 3);
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "a5", 0, extendStrArray);
+    EXPECT_EQ(ret, 4);
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "a6", 0, extendStrArray);
+    EXPECT_EQ(ret, 5);
+
+    // Not matched
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "aa1", 0, extendStrArray);
+    EXPECT_EQ(ret, -1);
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "A4", 0, extendStrArray);
+    EXPECT_EQ(ret, -1);
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "A5", 0, extendStrArray);
+    EXPECT_EQ(ret, -1);
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "A6", 0, extendStrArray);
+    EXPECT_EQ(ret, -1);
+
+    // Ignore case
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "A4", 1, extendStrArray);
+    EXPECT_EQ(ret, 3);
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "A5", 2, extendStrArray);
+    EXPECT_EQ(ret, 4);
+    ret = OH_ExtendableStrArrayGetIndex(strArray, "A6", 3, extendStrArray);
+    EXPECT_EQ(ret, 5);
+}
+
+HWTEST_F(StrUtilUnitTest, StrDictGet_unit_test_str_array, TestSize.Level1)
+{
+    int ret;
+    void *res;
+    const char *strArray[] = { "a1", "a2", "a3", NULL};
+
+    // Invalid arguments test
+    res = OH_StrDictGet(NULL, 0, "test", 0);
+    EXPECT_EQ(res, NULL);
+    res = OH_StrDictGet(NULL, 0, NULL, 0);
+    EXPECT_EQ(res, NULL);
+    res = OH_StrDictGet((void **)strArray, 1, NULL, 0);
+    EXPECT_EQ(res, NULL);
+    res = OH_StrDictGet((void **)strArray, 3, NULL, 0);
+    EXPECT_EQ(res, NULL);
+
+    // Matched
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "a1", 0);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(*(const char **)res, "a1");
+    EXPECT_EQ(ret, 0);
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "a2", 0);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(*(const char **)res, "a2");
+    EXPECT_EQ(ret, 0);
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "a3", 0);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(*(const char **)res, "a3");
+    EXPECT_EQ(ret, 0);
+
+    // Not matched
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "aa1", 0);
+    EXPECT_EQ(res, nullptr);
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "A1", 0);
+    EXPECT_EQ(res, nullptr);
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "A2", 0);
+    EXPECT_EQ(res, nullptr);
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "A3", 0);
+    EXPECT_EQ(res, nullptr);
+
+    // Ignore case
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "A1", 1);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(*(const char **)res, "a1");
+    EXPECT_EQ(ret, 0);
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "A2", 2);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(*(const char **)res, "a2");
+    EXPECT_EQ(ret, 0);
+    res = OH_StrDictGet((void **)strArray, sizeof(const char *), "A3", 3);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(*(const char **)res, "a3");
+    EXPECT_EQ(ret, 0);
+}
+
+using STRING_INT_DICT = struct {
+    const char *key;
+    int val;
+};
+
+HWTEST_F(StrUtilUnitTest, StrDictGet_unit_test_str_int_dict, TestSize.Level1)
+{
+    const STRING_INT_DICT *res;
+    const STRING_INT_DICT strIntDict[] = {
+        {"a1", 1},
+        {"a2", 2},
+        {"a3", 3},
+        {NULL, 0}
+    };
+
+    // Matched
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "a1", 0);
+    ASSERT_NE(res, nullptr);
+    EXPECT_EQ(res->val, 1);
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "a2", 0);
+    ASSERT_NE(res, nullptr);
+    EXPECT_EQ(res->val, 2);
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "a3", 0);
+    ASSERT_NE(res, nullptr);
+    EXPECT_EQ(res->val, 3);
+
+    // Not matched
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "aa1", 0);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "A1", 0);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "A2", 0);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "A3", 0);
+    EXPECT_EQ(res, nullptr);
+
+    // Ignore case
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "A1", 3);
+    ASSERT_NE(res, nullptr);
+    EXPECT_EQ(res->val, 1);
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "A2", 2);
+    ASSERT_NE(res, nullptr);
+    EXPECT_EQ(res->val, 2);
+    res = (const STRING_INT_DICT *)OH_StrDictGet((void **)strIntDict, sizeof(STRING_INT_DICT), "A3", 1);
+    ASSERT_NE(res, nullptr);
+    EXPECT_EQ(res->val, 3);
+}
+
+using STRING_STRING_DICT = struct {
+    const char *key;
+    const char *val;
+};
+
+HWTEST_F(StrUtilUnitTest, StrDictGet_unit_test_str_str_dict, TestSize.Level1)
+{
+    int ret;
+    const STRING_STRING_DICT *res;
+    const STRING_STRING_DICT strStrDict[] = {
+        {"a1", "val1"},
+        {"a2", "val2"},
+        {"a3", "val3"},
+        {NULL, NULL}
+    };
+
+    // Matched
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "a1", 0);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val1");
+    EXPECT_EQ(ret, 0);
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "a2", 0);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val2");
+    EXPECT_EQ(ret, 0);
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "a3", 0);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val3");
+    EXPECT_EQ(ret, 0);
+
+    // Not matched
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "aa1", 0);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "A1", 0);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "A2", 0);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "A3", 0);
+    EXPECT_EQ(res, nullptr);
+
+    // Ignore case
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "A1", 3);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val1");
+    EXPECT_EQ(ret, 0);
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "A2", 2);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val2");
+    EXPECT_EQ(ret, 0);
+    res = (const STRING_STRING_DICT *)OH_StrDictGet((void **)strStrDict,
+        sizeof(STRING_STRING_DICT), "A3", 1);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val3");
+    EXPECT_EQ(ret, 0);
+}
+
+using STRING_HYBRID_DICT = struct {
+    const char *key;
+    int cnt;
+    const char *val;
+};
+
+HWTEST_F(StrUtilUnitTest, StrDictGet_unit_test_str_hybrid_dict, TestSize.Level1)
+{
+    int ret;
+    const STRING_HYBRID_DICT *res;
+    const STRING_HYBRID_DICT strHybridDict[] = {
+        {"a1", 1, "val1"},
+        {"a2", 2, "val2"},
+        {"a3", 3, "val3"},
+        {NULL, 0, NULL}
+    };
+
+    // string array Matched
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "a1", 0);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val1");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 1);
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "a2", 0);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val2");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 2);
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "a3", 0);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val3");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 3);
+
+    // Not matched
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "aa1", 0);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A1", 0);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A2", 0);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A3", 0);
+    EXPECT_EQ(res, nullptr);
+
+    // Ignore case
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A1", 3);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val1");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 1);
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A2", 2);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val2");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 2);
+    res = (const STRING_HYBRID_DICT *)OH_StrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A3", 1);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val3");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 3);
+}
+
+HWTEST_F(StrUtilUnitTest, ExtendableStrDictGet_unit_test, TestSize.Level1)
+{
+    int ret;
+    const STRING_HYBRID_DICT *res;
+    const STRING_HYBRID_DICT strHybridDict[] = {
+        {"a1", 1, "val1"},
+        {"a2", 2, "val2"},
+        {"a3", 3, "val3"},
+        {NULL, 0, NULL}
+    };
+    const STRING_HYBRID_DICT extendHybridDict[] = {
+        {"a4", 4, "val4"},
+        {"a5", 5, "val5"},
+        {"a6", 6, "val6"},
+        {NULL, 0, NULL}
+    };
+
+    // string array Matched
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "a4", 0, (void **)extendHybridDict);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val4");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 4);
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "a5", 0, (void **)extendHybridDict);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val5");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 5);
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "a6", 0, (void **)extendHybridDict);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val6");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 6);
+
+    // Not matched
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "aa1", 0, (void **)extendHybridDict);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A4", 0, (void **)extendHybridDict);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A5", 0, (void **)extendHybridDict);
+    EXPECT_EQ(res, nullptr);
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A6", 0, (void **)extendHybridDict);
+    EXPECT_EQ(res, nullptr);
+
+    // Ignore case
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A4", 3, (void **)extendHybridDict);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val4");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 4);
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A5", 2, (void **)extendHybridDict);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val5");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 5);
+    res = (const STRING_HYBRID_DICT *)OH_ExtendableStrDictGet((void **)strHybridDict,
+        sizeof(STRING_HYBRID_DICT), "A6", 1, (void **)extendHybridDict);
+    ASSERT_NE(res, nullptr);
+    ret = strcmp(res->val, "val6");
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(res->cnt, 6);
+}
+} // namespace init_ut