Signed-off-by: lovechinamo <wangdongqi2@huawei.com>

Changes to be committed:

bundle.json

@@ -131,7 +131,8 @@
       ],
       "test": [
         "//base/miscservices/inputmethod/unitest:InputMethodControllerTest",
-        "//base/miscservices/inputmethod/unitest:InputMethodAbilityTest"
+        "//base/miscservices/inputmethod/unitest:InputMethodAbilityTest",
+        "//base/miscservices/inputmethod/test/fuzztest:fuzztest"
       ]
     }
   }

test/fuzztest/BUILD.gn

@@ -0,0 +1,22 @@
+# 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
+#
+#     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.
+
+import("//base/miscservices/inputmethod/inputmethod.gni")
+
+group("fuzztest") {
+  testonly = true
+
+  deps = [
+    "inputclientstub_fuzzer:fuzztest",
+  ]
+}

test/fuzztest/inputclientstub_fuzzer/BUILD.gn

@@ -0,0 +1,61 @@
+# 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.
+
+#####################hydra-fuzz###################
+import("//build/config/features.gni")
+import("//build/ohos.gni")
+import("//build/test.gni")
+
+##############################fuzztest##########################################
+ohos_fuzztest("InputClientStubFuzzTest") {
+
+module_out_path = "miscservices/inputmethod"
+
+fuzz_config_file = "//base/miscservices/inputmethod/test/fuzztest/inputclientstub_fuzzer"
+
+include_dirs = ["//base/miscservices/inputmethod/frameworks/inputmethod_controller/include",
+                "//base/miscservices/inputmethod/frameworks/inputmethod_controller/src",
+                "//base/miscservices/inputmethod/frameworks/inputmethod_ability/include",
+                "//base/miscservices/inputmethod/services/include",
+                "//base/hiviewdfx/hilog/interfaces/native/innerkits/include",
+                "//foundation/communication/ipc/interfaces/innerkits/ipc_core/include",
+                "//foundation/multimodalinput/input/interfaces/native/innerkits/event/include",
+                "//utils/native/base/include",]
+ 
+cflags = ["-g","-O0","-Wno-unused-variable","-fno-omit-frame-pointer"]
+  
+sources = [ "inputclientstub_fuzzer.cpp"]
+
+deps = [
+                "//foundation/communication/ipc/interfaces/innerkits/ipc_core:ipc_core",
+                "//foundation/communication/ipc/interfaces/innerkits/ipc_single:ipc_single",
+                "//foundation/distributedschedule/safwk/interfaces/innerkits/safwk:system_ability_fwk",
+                "//foundation/distributedschedule/samgr/interfaces/innerkits/samgr_proxy:samgr_proxy",
+                "//foundation/multimodalinput/input/frameworks/proxy:libmmi-common",
+                "//utils/native/base:utils",
+                "//base/miscservices/inputmethod/services:inputmethod_service",
+                "//base/miscservices/inputmethod/frameworks/inputmethod_controller:inputmethod_client",
+           ]
+
+external_deps = [ "hiviewdfx_hilog_native:libhilog",]
+}
+###############################################################################
+group("fuzztest") {
+  testonly = true
+  deps = []
+  deps += [
+    # deps file
+    ":InputClientStubFuzzTest",
+  ]
+}
+###############################################################################

test/fuzztest/inputclientstub_fuzzer/corpus/init

@@ -0,0 +1 @@
+FUZZ

test/fuzztest/inputclientstub_fuzzer/inputclientstub_fuzzer.cpp

@@ -0,0 +1,70 @@
+/*
+ * 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 <stddef.h>
+#include <stdint.h>
+
+#include "inputclientstub_fuzzer.h"
+#include "input_client_stub.h"
+#include "global.h"
+
+#include "message_parcel.h"
+
+using namespace OHOS::MiscServices;
+namespace OHOS {
+    constexpr size_t THRESHOLD = 10;
+    constexpr int32_t OFFSET = 4;
+    const std::u16string ICS_INTERFACE_TOKEN = u"ohos.miscservices.InputClientStub";
+
+    uint32_t ConvertToUint32(const uint8_t *ptr)
+    {
+        if (ptr == nullptr)
+        {
+            return 0;
+        }
+        return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
+    }
+    bool FuzzInputClientStub(const uint8_t* rawData, size_t size)
+    {
+        uint32_t code = ConvertToUint32(rawData);
+        rawData = rawData + OFFSET;
+        size = size - OFFSET;
+
+        MessageParcel data;
+        data.WriteInterfaceToken(ICS_INTERFACE_TOKEN);
+        data.WriteBuffer(rawData, size);
+        data.RewindRead(0);
+        MessageParcel reply;
+        MessageOption option;
+
+        sptr<InputClientStub> mClient = new InputClientStub;
+        mClient->OnRemoteRequest(code, data, reply, option);
+
+        return true;
+    }
+}
+/* Fuzzer entry point */
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    if (size < OHOS::THRESHOLD)
+    {
+        return -1;
+    }
+    /* Run your code on data */
+    OHOS::FuzzInputClientStub(data, size);
+    return 0;
+}
+

test/fuzztest/inputclientstub_fuzzer/inputclientstub_fuzzer.h

@@ -0,0 +1,21 @@
+/*
+ * 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.
+ */
+
+#ifndef TEST_FUZZTEST_ICS_FUZZER_ICS_FUZZER_H
+#define TEST_FUZZTEST_ICS_FUZZER_ICS_FUZZER_H
+
+#define FUZZ_PROJECT_NAME "inputclientstub_fuzzer"
+
+#endif // TEST_FUZZTEST_ICS_FUZZER_ICS_FUZZER_H

test/fuzztest/inputclientstub_fuzzer/project.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+<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>