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 "abilityinterfacesappmgrabilitydebugresponseproxy_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "ability_debug_response_proxy.h"
23 #include "ability_debug_response_interface.h"
24 #undef private
25
26 #include "securec.h"
27 #include "parcel.h"
28 #include "ability_record.h"
29
30 using namespace OHOS::AAFwk;
31 using namespace OHOS::AppExecFwk;
32
33 namespace OHOS {
34 namespace {
35 constexpr int INPUT_ZERO = 0;
36 constexpr int INPUT_ONE = 1;
37 constexpr int INPUT_TWO = 2;
38 constexpr int INPUT_THREE = 3;
39 constexpr size_t U32_AT_SIZE = 4;
40 constexpr size_t OFFSET_ZERO = 24;
41 constexpr size_t OFFSET_ONE = 16;
42 constexpr size_t OFFSET_TWO = 8;
43 constexpr uint8_t ENABLE = 2;
44 }
45 const std::u16string AMSMGR_INTERFACE_TOKEN = u"ohos.appexecfwk.IAmsMgr";
GetU32Data(const char * ptr)46 uint32_t GetU32Data(const char* ptr)
47 {
48 // convert fuzz input data to an integer
49 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
50 ptr[INPUT_THREE];
51 }
52
GetFuzzAbilityToken()53 sptr<Token> GetFuzzAbilityToken()
54 {
55 sptr<Token> token = nullptr;
56 AbilityRequest abilityRequest;
57 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
58 abilityRequest.abilityInfo.name = "MainAbility";
59 abilityRequest.abilityInfo.type = AbilityType::DATA;
60 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
61 if (abilityRecord) {
62 token = abilityRecord->GetToken();
63 }
64 return token;
65 }
66
DoSomethingInterestingWithMyAPI(const char * data,size_t size)67 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
68 {
69 sptr<IRemoteObject> impl;
70 std::shared_ptr<AbilityDebugResponseProxy> infosProxy = std::make_shared<AbilityDebugResponseProxy>(impl);
71 std::vector<sptr<IRemoteObject>> tokens;
72 infosProxy->OnAbilitysDebugStarted(tokens);
73 infosProxy->OnAbilitysDebugStoped(tokens);
74 bool isAssertDebug = *data % ENABLE;
75 infosProxy->OnAbilitysAssertDebugChange(tokens, isAssertDebug);
76 MessageParcel parcels;
77 parcels.WriteInterfaceToken(AMSMGR_INTERFACE_TOKEN);
78 parcels.WriteBuffer(data, size);
79 parcels.RewindRead(0);
80 infosProxy->WriteInterfaceToken(parcels);
81 IAbilityDebugResponse::Message message = IAbilityDebugResponse::Message::ON_ABILITYS_DEBUG_STARTED;
82 infosProxy->SendRequest(message, tokens);
83 message = IAbilityDebugResponse::Message::ON_ABILITYS_DEBUG_STOPED;
84 infosProxy->SendRequest(message, tokens);
85 message = IAbilityDebugResponse::Message::ON_ABILITYS_ASSERT_DEBUG;
86 infosProxy->SendRequest(message, tokens);
87 return true;
88 }
89 }
90
91 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)92 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
93 {
94 /* Run your code on data */
95 if (data == nullptr) {
96 std::cout << "invalid data" << std::endl;
97 return 0;
98 }
99
100 /* Validate the length of size */
101 if (size < OHOS::U32_AT_SIZE) {
102 return 0;
103 }
104
105 char* ch = static_cast<char*>(malloc(size + 1));
106 if (ch == nullptr) {
107 std::cout << "malloc failed." << std::endl;
108 return 0;
109 }
110
111 (void)memset_s(ch, size + 1, 0x00, size + 1);
112 if (memcpy_s(ch, size + 1, data, size) != EOK) {
113 std::cout << "copy failed." << std::endl;
114 free(ch);
115 ch = nullptr;
116 return 0;
117 }
118
119 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
120 free(ch);
121 ch = nullptr;
122 return 0;
123 }
124
125