1/*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include "abilityinterfacesappmgrnativechildnotifyproxy_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#define private public
22#include "native_child_notify_proxy.h"
23#include "native_child_notify_interface.h"
24#undef private
25
26#include "securec.h"
27#include "parcel.h"
28#include "ability_record.h"
29
30using namespace OHOS::AAFwk;
31using namespace OHOS::AppExecFwk;
32
33namespace OHOS {
34namespace {
35constexpr int INPUT_ZERO = 0;
36constexpr int INPUT_ONE = 1;
37constexpr int INPUT_TWO = 2;
38constexpr int INPUT_THREE = 3;
39constexpr size_t FOO_MAX_LEN = 1024;
40constexpr size_t U32_AT_SIZE = 4;
41constexpr size_t OFFSET_ZERO = 24;
42constexpr size_t OFFSET_ONE = 16;
43constexpr size_t OFFSET_TWO = 8;
44constexpr uint8_t ENABLE = 2;
45}
46const std::u16string AMSMGR_INTERFACE_TOKEN = u"ohos.appexecfwk.IAmsMgr";
47uint32_t GetU32Data(const char* ptr)
48{
49    // convert fuzz input data to an integer
50    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
51        ptr[INPUT_THREE];
52}
53
54sptr<Token> GetFuzzAbilityToken()
55{
56    sptr<Token> token = nullptr;
57    AbilityRequest abilityRequest;
58    abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
59    abilityRequest.abilityInfo.name = "MainAbility";
60    abilityRequest.abilityInfo.type = AbilityType::DATA;
61    std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
62    if (abilityRecord) {
63        token = abilityRecord->GetToken();
64    }
65    return token;
66}
67
68bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
69{
70    sptr<IRemoteObject> impl;
71    std::shared_ptr<NativeChildNotifyProxy> infosProxy = std::make_shared<NativeChildNotifyProxy>(impl);
72    sptr<IRemoteObject> nativeChild;
73    infosProxy->OnNativeChildStarted(nativeChild);
74    int32_t errCode = static_cast<int32_t>(GetU32Data(data));
75    infosProxy->OnError(errCode);
76    MessageParcel parcel;
77    parcel.WriteInterfaceToken(AMSMGR_INTERFACE_TOKEN);
78    parcel.WriteBuffer(data, size);
79    parcel.RewindRead(0);
80    MessageParcel parcels;
81    parcels.WriteInterfaceToken(AMSMGR_INTERFACE_TOKEN);
82    parcels.WriteBuffer(data, size);
83    parcels.RewindRead(0);
84    infosProxy->WriteInterfaceToken(parcels);
85    uint32_t codeOne = static_cast<uint32_t>(INPUT_ZERO);
86    MessageParcel reply;
87    MessageOption option;
88    infosProxy->SendRequest(codeOne, parcel, reply, option);
89    uint32_t codeTwo = static_cast<uint32_t>(INPUT_ONE);
90    infosProxy->SendRequest(codeTwo, parcel, reply, option);
91    return true;
92}
93}
94
95/* Fuzzer entry point */
96extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
97{
98    /* Run your code on data */
99    if (data == nullptr) {
100        std::cout << "invalid data" << std::endl;
101        return 0;
102    }
103
104    /* Validate the length of size */
105    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
106        return 0;
107    }
108
109    char* ch = (char*)malloc(size + 1);
110    if (ch == nullptr) {
111        std::cout << "malloc failed." << std::endl;
112        return 0;
113    }
114
115    (void)memset_s(ch, size + 1, 0x00, size + 1);
116    if (memcpy_s(ch, size + 1, data, size) != EOK) {
117        std::cout << "copy failed." << std::endl;
118        free(ch);
119        ch = nullptr;
120        return 0;
121    }
122
123    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
124    free(ch);
125    ch = nullptr;
126    return 0;
127}
128
129