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 "assertfaultcallbackdeathmgr_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "assert_fault_callback_death_mgr.h"
22 #include "securec.h"
23
24 using namespace OHOS::AAFwk;
25 using namespace OHOS::AppExecFwk;
26 using namespace OHOS::AbilityRuntime;
27
28 namespace OHOS {
29 namespace {
30 constexpr int INPUT_ZERO = 0;
31 constexpr int INPUT_ONE = 1;
32 constexpr int INPUT_THREE = 3;
33 constexpr size_t U32_AT_SIZE = 4;
34 constexpr uint8_t ENABLE = 2;
35 constexpr size_t OFFSET_ZERO = 24;
36 constexpr size_t OFFSET_ONE = 16;
37 constexpr size_t OFFSET_TWO = 8;
38 }
GetU32Data(const char * ptr)39 uint32_t GetU32Data(const char* ptr)
40 {
41 // convert fuzz input data to an integer
42 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
43 ptr[INPUT_THREE];
44 }
45
DoSomethingInterestingWithMyAPI(const char * data,size_t size)46 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
47 {
48 sptr<IRemoteObject> remote;
49 wptr<IRemoteObject> remotes;
50 time_t timeParam = static_cast<time_t>(GetU32Data(data));
51 uint64_t u64Param = static_cast<uint64_t>(GetU32Data(data));
52 AbilityRuntime::AssertFaultCallbackDeathMgr::CallbackTask callback;
53 bool boolParam = *data % ENABLE;
54 auto assertFaultCallbackDeathMgr = std::make_shared<AssertFaultCallbackDeathMgr>();
55 assertFaultCallbackDeathMgr->AddAssertFaultCallback(remote, callback);
56 assertFaultCallbackDeathMgr->RemoveAssertFaultCallback(remotes, boolParam);
57 remote = nullptr;
58 assertFaultCallbackDeathMgr->AddAssertFaultCallback(remote, callback);
59 AAFwk::UserStatus status = AAFwk::UserStatus::ASSERT_TERMINATE;
60 assertFaultCallbackDeathMgr->CallAssertFaultCallback(u64Param, status);
61 return true;
62 }
63 } // namespace OHOS
64
65 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)66 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
67 {
68 /* Run your code on data */
69 if (data == nullptr) {
70 std::cout << "invalid data" << std::endl;
71 return 0;
72 }
73
74 /* Validate the length of size */
75 if (size < OHOS::U32_AT_SIZE) {
76 return 0;
77 }
78
79 char* ch = static_cast<char*>(malloc(size + 1));
80 if (ch == nullptr) {
81 std::cout << "malloc failed." << std::endl;
82 return 0;
83 }
84
85 (void)memset_s(ch, size + 1, 0x00, size + 1);
86 if (memcpy_s(ch, size + 1, data, size) != EOK) {
87 std::cout << "copy failed." << std::endl;
88 free(ch);
89 ch = nullptr;
90 return 0;
91 }
92
93 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
94 free(ch);
95 ch = nullptr;
96 return 0;
97 }
98
99