!810 add fuzz testcases to improve cover

Merge pull request !810 from wangpggg/master

test/fuzztest/BUILD.gn

@@ -29,6 +29,9 @@ group("user_file_service_fuzz_test") {
     "externalfileaccessrename_fuzzer:ExternalFileAccessRenameFuzzTest",
     "externalfileaccessscanfile_fuzzer:ExternalFileAccessScanFileFuzzTest",
     "fileaccessextstub_fuzzer:FileAccessExtStubFuzzTest",
+    "fileaccessserviceproxy_fuzzer:FileAccessServiceProxyFuzzTest",
     "fileaccessservicestub_fuzzer:FileAccessServiceStubFuzzTest",
+    "fileinfosharedmemory_fuzzer:FileInfoSharedMemoryFuzzTest",
+    "useraccesscommonutils_fuzzer:UserAccessCommonUtilsFuzzTest",
   ]
 }

test/fuzztest/fileaccessserviceproxy_fuzzer/BUILD.gn

@@ -0,0 +1,56 @@
+# Copyright (c) 2024 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.
+
+#####################hydra-fuzz###################
+import("//build/config/features.gni")
+import("//build/test.gni")
+import("//foundation/filemanagement/user_file_service/filemanagement_aafwk.gni")
+ohos_fuzztest("FileAccessServiceProxyFuzzTest") {
+  module_out_path = "user_file_service/user_file_service"
+  fuzz_config_file =
+      "${user_file_service_path}/test/fuzztest/fileaccessserviceproxy_fuzzer"
+  include_dirs = [
+    "${ability_runtime_path}/interfaces/kits/native/appkit/ability_runtime/context",
+    "${user_file_service_path}/interfaces/inner_api/file_access/include",
+    "${user_file_service_path}/services/native/file_access_service/include",
+    "${user_file_service_path}/interfaces/kits/js/src/common",
+    "${user_file_service_path}/utils",
+  ]
+  cflags = [
+    "-g",
+    "-O0",
+    "-Wno-unused-variable",
+    "-fno-omit-frame-pointer",
+  ]
+  sources = [
+    "${user_file_service_path}/services/native/file_access_service/src/file_access_service_proxy.cpp",
+    "${user_file_service_path}/services/native/file_access_service/src/file_access_service_stub.cpp",
+    "${user_file_service_path}/test/fuzztest/fileaccessserviceproxy_fuzzer/fileaccessserviceproxy_fuzzer.cpp",
+  ]
+
+  external_deps = [
+    "ability_base:want",
+    "ability_base:zuri",
+    "ability_runtime:ability_manager",
+    "access_token:libaccesstoken_sdk",
+    "bundle_framework:appexecfwk_core",
+    "c_utils:utils",
+    "hilog:libhilog",
+    "hitrace:hitrace_meter",
+    "ipc:ipc_core",
+    "napi:ace_napi",
+    "safwk:system_ability_fwk",
+  ]
+
+  defines = [ "private=public" ]
+}

test/fuzztest/fileaccessserviceproxy_fuzzer/corpus/init

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2024 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.
+ */
+
+FUZZ

test/fuzztest/fileaccessserviceproxy_fuzzer/fileaccessservicemock.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2024 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 FILE_ACCESS_SERVICE_MOCK_H
+#define FILE_ACCESS_SERVICE_MOCK_H
+
+#include "file_access_service_stub.h"
+
+namespace OHOS {
+namespace FileAccessFwk {
+class FileAccessServiceMock final : public FileAccessServiceStub {
+public:
+    virtual ~FileAccessServiceMock() = default;
+
+    int32_t OnChange(Uri uri, NotifyType notifyType) override { return 0; }
+    int32_t RegisterNotify(Uri uri, bool notifyForDescendants, const sptr<IFileAccessObserver> &observer,
+        const std::shared_ptr<ConnectExtensionInfo> &info) override { return 0; }
+    int32_t UnregisterNotify(Uri uri, const sptr<IFileAccessObserver> &observer,
+        const std::shared_ptr<ConnectExtensionInfo> &info) override { return 0; }
+    int32_t GetExensionProxy(const std::shared_ptr<ConnectExtensionInfo> &info,
+        sptr<IFileAccessExtBase> &extensionProxy) override { return 0; }
+    int32_t CleanAllNotify(Uri uri, const std::shared_ptr<ConnectExtensionInfo> &info) override { return 0; }
+};
+} // namespace FileAccessFwk
+} // namespace OHOS
+#endif // FILE_ACCESS_SERVICE_MOCK_H

test/fuzztest/fileaccessserviceproxy_fuzzer/fileaccessserviceproxy_fuzzer.cpp

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2024 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 "fileaccessserviceproxy_fuzzer.h"
+
+#include <cstring>
+#include <memory>
+
+#include "file_access_service_proxy.h"
+#include "fileaccessservicemock.h"
+#include "iservice_registry.h"
+#include "refbase.h"
+
+namespace OHOS {
+using namespace std;
+using namespace FileAccessFwk;
+
+SystemAbilityManagerClient& SystemAbilityManagerClient::GetInstance()
+{
+    static auto instance = new SystemAbilityManagerClient();
+    return *instance;
+}
+
+sptr<ISystemAbilityManager> SystemAbilityManagerClient::GetSystemAbilityManager()
+{
+    return nullptr;
+}
+
+void SystemAbilityManagerClient::DestroySystemAbilityManagerObject()
+{}
+
+template<class T>
+T TypeCast(const uint8_t *data, int *pos = nullptr)
+{
+    if (pos) {
+        *pos += sizeof(T);
+    }
+    return *(reinterpret_cast<const T*>(data));
+}
+
+bool OnChangeFuzzTest(shared_ptr<FileAccessServiceProxy> proxy, const uint8_t *data, size_t size)
+{
+    if (data == nullptr || size < sizeof(NotifyType)) {
+        return true;
+    }
+
+    int pos = 0;
+    NotifyType notifyType = TypeCast<NotifyType>(data, &pos);
+    Uri uri(string(reinterpret_cast<const char*>(data + pos), size - pos));
+
+    proxy->OnChange(uri, notifyType);
+    return true;
+}
+
+bool RegisterNotifyFuzzTest(shared_ptr<FileAccessServiceProxy> proxy, const uint8_t *data, size_t size)
+{
+    if (data == nullptr || size < sizeof(bool)) {
+        return true;
+    }
+
+    int pos = 0;
+    auto info = make_shared<ConnectExtensionInfo>();
+    bool notifyForDescendants = TypeCast<bool>(data, &pos);
+    Uri uri(string(reinterpret_cast<const char*>(data + pos), size - pos));
+
+    proxy->RegisterNotify(uri, notifyForDescendants, nullptr, info);
+    return true;
+}
+
+bool UnregisterNotifyFuzzTest(shared_ptr<FileAccessServiceProxy> proxy, const uint8_t *data, size_t size)
+{
+    auto info = make_shared<ConnectExtensionInfo>();
+    Uri uri(string(reinterpret_cast<const char*>(data), size));
+
+    proxy->UnregisterNotify(uri, nullptr, info);
+    return true;
+}
+
+bool GetExensionProxyFuzzTest(shared_ptr<FileAccessServiceProxy> proxy, const uint8_t *data, size_t size)
+{
+    auto info = make_shared<ConnectExtensionInfo>();
+    sptr<IFileAccessExtBase> extensionProxy = nullptr;
+
+    proxy->GetExensionProxy(info, extensionProxy);
+    return true;
+}
+} // namespace OHOS
+
+/* Fuzzer entry point */
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+    auto impl = std::make_unique<OHOS::FileAccessFwk::FileAccessServiceMock>();
+    auto proxy = std::make_shared<OHOS::FileAccessFwk::FileAccessServiceProxy>(OHOS::sptr(impl.release()));
+    if (proxy == nullptr || impl == nullptr) {
+        return 0;
+    }
+
+    OHOS::OnChangeFuzzTest(proxy, data, size);
+    OHOS::RegisterNotifyFuzzTest(proxy, data, size);
+    OHOS::UnregisterNotifyFuzzTest(proxy, data, size);
+    OHOS::GetExensionProxyFuzzTest(proxy, data, size);
+
+    return 0;
+}

test/fuzztest/fileaccessserviceproxy_fuzzer/fileaccessserviceproxy_fuzzer.h

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2024 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 FILE_ACCESS_SERVICE_PROXY_FUZZER_H
+#define FILE_ACCESS_SERVICE_PROXY_FUZZER_H
+
+#define FUZZ_PROJECT_NAME "fileaccessserviceproxy_fuzzer"
+
+#endif

test/fuzztest/fileaccessserviceproxy_fuzzer/project.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2024 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.
+
+-->
+<fuzz_config>
+  <fuzztest>
+    <!-- maximum length of a test input -->
+    <max_len>1000</max_len>
+    <!-- maximum total time in seconds to run the fuzzer -->
+    <max_total_time>300</max_total_time>
+    <!-- memory usage limit in Mb -->
+    <rss_limit_mb>4096</rss_limit_mb>
+  </fuzztest>
+</fuzz_config>

test/fuzztest/fileaccessservicestub_fuzzer/fileaccessservicemock.h

@@ -24,14 +24,14 @@ class FileAccessServiceMock final : public FileAccessServiceStub {
 public:
     virtual ~FileAccessServiceMock() = default;
 
-    virtual int32_t OnChange(Uri uri, NotifyType notifyType) override { return 0; }
-    virtual int32_t RegisterNotify(Uri uri, bool notifyForDescendants, const sptr<IFileAccessObserver> &observer,
+    int32_t OnChange(Uri uri, NotifyType notifyType) override { return 0; }
+    int32_t RegisterNotify(Uri uri, bool notifyForDescendants, const sptr<IFileAccessObserver> &observer,
         const std::shared_ptr<ConnectExtensionInfo> &info) override { return 0; }
-    virtual int32_t UnregisterNotify(Uri uri, const sptr<IFileAccessObserver> &observer,
+    int32_t UnregisterNotify(Uri uri, const sptr<IFileAccessObserver> &observer,
         const std::shared_ptr<ConnectExtensionInfo> &info) override { return 0; }
-    virtual int32_t GetExensionProxy(const std::shared_ptr<ConnectExtensionInfo> &info,
+    int32_t GetExensionProxy(const std::shared_ptr<ConnectExtensionInfo> &info,
         sptr<IFileAccessExtBase> &extensionProxy) override { return 0; }
-    virtual int32_t CleanAllNotify(Uri uri, const std::shared_ptr<ConnectExtensionInfo> &info) override { return 0; }
+    int32_t CleanAllNotify(Uri uri, const std::shared_ptr<ConnectExtensionInfo> &info) override { return 0; }
 };
 } // namespace FileAccessFwk
 } // namespace OHOS

test/fuzztest/fileinfosharedmemory_fuzzer/BUILD.gn

@@ -0,0 +1,44 @@
+# Copyright (c) 2024 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.
+
+#####################hydra-fuzz###################
+import("//build/config/features.gni")
+import("//build/test.gni")
+import("//foundation/filemanagement/user_file_service/filemanagement_aafwk.gni")
+ohos_fuzztest("FileInfoSharedMemoryFuzzTest") {
+  module_out_path = "user_file_service/user_file_service"
+  fuzz_config_file =
+      "${user_file_service_path}/test/fuzztest/fileinfosharedmemory_fuzzer"
+  include_dirs = [
+    "${user_file_service_path}/interfaces/inner_api/file_access/include",
+    "${user_file_service_path}/interfaces/kits/js/src/common",
+    "${user_file_service_path}/utils",
+  ]
+  cflags = [
+    "-g",
+    "-O0",
+    "-Wno-unused-variable",
+    "-fno-omit-frame-pointer",
+  ]
+  sources = [ "${user_file_service_path}/test/fuzztest/fileinfosharedmemory_fuzzer/fileinfosharedmemory_fuzzer.cpp" ]
+
+  external_deps = [
+    "ability_base:want",
+    "ability_base:zuri",
+    "c_utils:utils",
+    "hilog:libhilog",
+    "ipc:ipc_core",
+  ]
+
+  defines = [ "private=public" ]
+}

test/fuzztest/fileinfosharedmemory_fuzzer/corpus/init

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2024 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.
+ */
+
+FUZZ

test/fuzztest/fileinfosharedmemory_fuzzer/fileinfosharedmemory_fuzzer.cpp

@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2024 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 "fileinfosharedmemory_fuzzer.h"
+
+#include <cstring>
+#include <memory>
+
+#include "file_info_shared_memory.h"
+
+namespace OHOS {
+using namespace std;
+using namespace FileAccessFwk;
+
+template<class T>
+T TypeCast(const uint8_t *data, int *pos = nullptr)
+{
+    if (pos) {
+        *pos += sizeof(T);
+    }
+    return *(reinterpret_cast<const T*>(data));
+}
+
+bool MarshallingFuzzTest(shared_ptr<SharedMemoryInfo> info, const uint8_t *data, size_t size)
+{
+    if (data == nullptr || size < sizeof(int) + sizeof(uint64_t)) {
+        return true;
+    }
+
+    int pos = 0;
+    MessageParcel reply;
+    info->memFd = TypeCast<int>(data, &pos);
+    info->memSize = TypeCast<uint64_t>(data + pos);
+    info->Marshalling(reply);
+
+    return true;
+}
+
+bool UnmarshallingFuzzTest(shared_ptr<SharedMemoryInfo> info, const uint8_t *data, size_t size)
+{
+    MessageParcel reply;
+    info->Unmarshalling(reply);
+
+    return true;
+}
+
+bool CreateSharedMemoryFuzzTest(const uint8_t *data, size_t size)
+{
+    if (data == nullptr || size < sizeof(uint64_t)) {
+        return true;
+    }
+
+    int pos = 0;
+    uint64_t memSize = TypeCast<uint64_t>(data, &pos);
+    string memName(reinterpret_cast<const char*>(data + pos), size - pos);
+    SharedMemoryInfo memInfo;
+    SharedMemoryOperation::CreateSharedMemory(memName.c_str(), memSize, memInfo);
+    SharedMemoryOperation::DestroySharedMemory(memInfo);
+
+    return true;
+}
+
+bool ExpandSharedMemoryFuzzTest(const uint8_t *data, size_t size)
+{
+    if (data == nullptr || size < sizeof(uint64_t)) {
+        return true;
+    }
+
+    int pos = 0;
+    uint64_t memSize = TypeCast<uint64_t>(data, &pos);
+    string memName(reinterpret_cast<const char*>(data + pos), size - pos);
+    SharedMemoryInfo memInfo;
+    SharedMemoryOperation::CreateSharedMemory(memName.c_str(), memSize, memInfo);
+    SharedMemoryOperation::ExpandSharedMemory(memInfo);
+    SharedMemoryOperation::DestroySharedMemory(memInfo);
+
+    return true;
+}
+
+bool WriteFileInfosFuzzTest(const uint8_t *data, size_t size)
+{
+    FileInfo info;
+    vector<FileInfo> fileInfoVec;
+    fileInfoVec.emplace_back();
+    SharedMemoryInfo memInfo;
+    SharedMemoryOperation::WriteFileInfos(fileInfoVec, memInfo);
+    SharedMemoryOperation::ReadFileInfo(info, memInfo);
+
+    return true;
+}
+
+} // namespace OHOS
+
+/* Fuzzer entry point */
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+    auto sharedMemoryInfo = std::make_shared<OHOS::FileAccessFwk::SharedMemoryInfo>();
+    if (sharedMemoryInfo == nullptr) {
+        return 0;
+    }
+
+    OHOS::MarshallingFuzzTest(sharedMemoryInfo, data, size);
+    OHOS::UnmarshallingFuzzTest(sharedMemoryInfo, data, size);
+
+    OHOS::CreateSharedMemoryFuzzTest(data, size);
+    OHOS::ExpandSharedMemoryFuzzTest(data, size);
+    OHOS::WriteFileInfosFuzzTest(data, size);
+
+    return 0;
+}

test/fuzztest/fileinfosharedmemory_fuzzer/fileinfosharedmemory_fuzzer.h

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2024 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 FILE_INFO_SHARED_MEMORY_FUZZER_H
+#define FILE_INFO_SHARED_MEMORY_FUZZER_H
+
+#define FUZZ_PROJECT_NAME "fileinfosharedmemory_fuzzer"
+
+#endif

test/fuzztest/fileinfosharedmemory_fuzzer/project.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2024 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.
+
+-->
+<fuzz_config>
+  <fuzztest>
+    <!-- maximum length of a test input -->
+    <max_len>1000</max_len>
+    <!-- maximum total time in seconds to run the fuzzer -->
+    <max_total_time>300</max_total_time>
+    <!-- memory usage limit in Mb -->
+    <rss_limit_mb>4096</rss_limit_mb>
+  </fuzztest>
+</fuzz_config>

test/fuzztest/useraccesscommonutils_fuzzer/BUILD.gn

@@ -0,0 +1,39 @@
+# Copyright (c) 2024 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.
+
+#####################hydra-fuzz###################
+import("//build/config/features.gni")
+import("//build/test.gni")
+import("//foundation/filemanagement/user_file_service/filemanagement_aafwk.gni")
+ohos_fuzztest("UserAccessCommonUtilsFuzzTest") {
+  module_out_path = "user_file_service/user_file_service"
+  fuzz_config_file =
+      "${user_file_service_path}/test/fuzztest/useraccesscommonutils_fuzzer"
+  include_dirs = [ "${user_file_service_path}/utils" ]
+  cflags = [
+    "-g",
+    "-O0",
+    "-Wno-unused-variable",
+    "-fno-omit-frame-pointer",
+  ]
+  sources = [ "${user_file_service_path}/test/fuzztest/useraccesscommonutils_fuzzer/useraccesscommonutils_fuzzer.cpp" ]
+
+  external_deps = [
+    "c_utils:utils",
+    "hilog:libhilog",
+    "init:libbegetutil",
+    "os_account:os_account_innerkits",
+  ]
+
+  defines = [ "private=public" ]
+}

test/fuzztest/useraccesscommonutils_fuzzer/corpus/init

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2024 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.
+ */
+
+FUZZ

test/fuzztest/useraccesscommonutils_fuzzer/project.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2024 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.
+
+-->
+<fuzz_config>
+  <fuzztest>
+    <!-- maximum length of a test input -->
+    <max_len>1000</max_len>
+    <!-- maximum total time in seconds to run the fuzzer -->
+    <max_total_time>300</max_total_time>
+    <!-- memory usage limit in Mb -->
+    <rss_limit_mb>4096</rss_limit_mb>
+  </fuzztest>
+</fuzz_config>

test/fuzztest/useraccesscommonutils_fuzzer/useraccesscommonutils_fuzzer.cpp

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2024 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 "useraccesscommonutils_fuzzer.h"
+
+#include <cstring>
+
+#include "hilog_wrapper.h"
+#include "user_access_common_utils.h"
+
+namespace OHOS {
+using namespace std;
+using namespace FileAccessFwk;
+
+bool GetDeviceTypeFuzzTest(const uint8_t *data, size_t size)
+{
+    string deviceType;
+    GetDeviceType(deviceType);
+    return true;
+}
+
+bool GetUserNameFuzzTest(const uint8_t *data, size_t size)
+{
+    string userName;
+    GetUserName(userName);
+    return true;
+}
+
+} // namespace OHOS
+
+/* Fuzzer entry point */
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+    OHOS::GetDeviceTypeFuzzTest(data, size);
+    OHOS::GetUserNameFuzzTest(data, size);
+
+    return 0;
+}

test/fuzztest/useraccesscommonutils_fuzzer/useraccesscommonutils_fuzzer.h

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2024 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 USER_ACCESS_COMMON_UTILS_FUZZER_H
+#define USER_ACCESS_COMMON_UTILS_FUZZER_H
+
+#define FUZZ_PROJECT_NAME "useraccesscommonutils_fuzzer"
+
+#endif