xref: /foundation/ability/form_fwk/test/fuzztest/formmgrstub_fuzzer/formmgrstub_fuzzer.cpp

/*
 * 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.
 */

#include "formmgrstub_fuzzer.h"

#include <cstddef>
#include <cstdint>

#include "form_mgr_stub.h"
#include "message_parcel.h"
#include "securec.h"

using namespace OHOS::AppExecFwk;

#define DISABLE_FUZZ
namespace OHOS {
constexpr size_t FOO_MAX_LEN = 1024;
constexpr size_t U32_AT_SIZE = 4;
const std::u16string FORMMGR_INTERFACE_TOKEN = u"ohos.appexecfwk.FormMgr";

class FormMgrStubFuzzTest : public FormMgrStub {
public:
    FormMgrStubFuzzTest() = default;
    virtual ~FormMgrStubFuzzTest() = default;
    int AddForm(const int64_t formId, const Want &want,
        const sptr<IRemoteObject> &callerToken, FormJsInfo &formInfo) override
    {
        return 0;
    }
    int DeleteForm(const int64_t formId, const sptr<IRemoteObject> &callerToken) override
    {
        return 0;
    }
    int ReleaseForm(const int64_t formId, const sptr<IRemoteObject> &callerToken, const bool delCache) override
    {
        return 0;
    }
    int UpdateForm(const int64_t formId, const FormProviderData &formProviderData) override
    {
        return 0;
    }
    int SetNextRefreshTime(const int64_t formId, const int64_t nextTime) override
    {
        return 0;
    }
    ErrCode RequestPublishForm(Want &want, bool withFormBindingData,
        std::unique_ptr<FormProviderData> &formBindingData, int64_t &formId) override
    {
        return 0;
    }
    int LifecycleUpdate(const std::vector<int64_t> &formIds,
        const sptr<IRemoteObject> &callerToken, bool updateType) override
    {
        return 0;
    }
    int RequestForm(const int64_t formId, const sptr<IRemoteObject> &callerToken, const Want &want) override
    {
        return 0;
    }
    int NotifyWhetherVisibleForms(const std::vector<int64_t> &formIds,
        const sptr<IRemoteObject> &callerToken, const int32_t formVisibleType) override
    {
        return 0;
    }
    int CastTempForm(const int64_t formId, const sptr<IRemoteObject> &callerToken) override
    {
        return 0;
    }
    int DumpStorageFormInfos(std::string &formInfos) override
    {
        return 0;
    }
    int DumpFormInfoByBundleName(const std::string &bundleName, std::string &formInfos) override
    {
        return 0;
    }
    int DumpFormInfoByFormId(const std::int64_t formId, std::string &formInfo) override
    {
        return 0;
    }
    int DumpFormTimerByFormId(const std::int64_t formId, std::string &isTimingService) override
    {
        return 0;
    }
    int MessageEvent(const int64_t formId, const Want &want, const sptr<IRemoteObject> &callerToken) override
    {
        return 0;
    }
    int RouterEvent(const int64_t formId, Want &want, const sptr<IRemoteObject> &callerToken) override
    {
        return 0;
    }
    int BackgroundEvent(const int64_t formId, Want &want, const sptr<IRemoteObject> &callerToken) override
    {
        return 0;
    }
    int DeleteInvalidForms(const std::vector<int64_t> &formIds,
        const sptr<IRemoteObject> &callerToken, int32_t &numFormsDeleted) override
    {
        return 0;
    }
    int AcquireFormState(const Want &want,
        const sptr<IRemoteObject> &callerToken, FormStateInfo &stateInfo) override
    {
        return 0;
    }
    int NotifyFormsVisible(const std::vector<int64_t> &formIds, bool isVisible,
        const sptr<IRemoteObject> &callerToken) override
    {
        return 0;
    }
    int NotifyFormsPrivacyProtected(const std::vector<int64_t> &formIds,
        bool isProtected, const sptr<IRemoteObject> &callerToken) override
    {
        return 0;
    }
    int NotifyFormsEnableUpdate(const std::vector<int64_t> &formIds, bool isEnableUpdate,
        const sptr<IRemoteObject> &callerToken) override
    {
        return 0;
    }
    int GetAllFormsInfo(std::vector<FormInfo> &formInfos) override
    {
        return 0;
    }
    int GetFormsInfoByApp(std::string &bundleName, std::vector<FormInfo> &formInfos) override
    {
        return 0;
    }
    int GetFormsInfoByModule(std::string &bundleName,
        std::string &moduleName, std::vector<FormInfo> &formInfos) override
    {
        return 0;
    }
    int32_t GetFormsInfo(const FormInfoFilter &filter, std::vector<FormInfo> &formInfos) override
    {
        return 0;
    }
    bool IsRequestPublishFormSupported() override
    {
        return 0;
    }
    int32_t StartAbility(const Want &want, const sptr<IRemoteObject> &callerToken) override
    {
        return 0;
    }
    int32_t ShareForm(int64_t formId, const std::string &deviceId,
        const sptr<IRemoteObject> &callerToken, int64_t requestCode) override
    {
        return 0;
    }
    int32_t RecvFormShareInfoFromRemote(const FormShareInfo &info) override
    {
        return 0;
    }
    bool CheckFMSReady() override
    {
        return false;
    }
};

uint32_t GetU32Data(const char* ptr)
{
    // 将第0个数字左移24位，将第1个数字左移16位，将第2个数字左移8位，第3个数字不左移
    return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
}

bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
{
    uint32_t code = GetU32Data(data);
    MessageParcel datas;
    datas.WriteInterfaceToken(FORMMGR_INTERFACE_TOKEN);
    datas.WriteBuffer(data, size);
    datas.RewindRead(0);
    MessageParcel reply;
    MessageOption option;
    std::shared_ptr<FormMgrStub> formmgrstub = std::make_shared<FormMgrStubFuzzTest>();
    formmgrstub->OnRemoteRequest(code, datas, reply, option);
    return true;
}
}

/* Fuzzer entry point */
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
{
    /* Run your code on data */
    if (data == nullptr) {
        return 0;
    }

    if (size < OHOS::U32_AT_SIZE) {
        return 0;
    }

    /* Validate the length of size */
    if (size == 0 || size > OHOS::FOO_MAX_LEN) {
        return 0;
    }

    char* ch = (char *)malloc(size + 1);
    if (ch == nullptr) {
        return 0;
    }

    (void)memset_s(ch, size + 1, 0x00, size + 1);
    if (memcpy_s(ch, size, data, size) != EOK) {
        free(ch);
        ch = nullptr;
        return 0;
    }

#ifndef DISABLE_FUZZ
    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
#endif
    free(ch);
    ch = nullptr;
    return 0;
}