1 /*
2 * Copyright (c) 2022 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 "startusertest_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "ability_manager_client.h"
22 #include "parcel.h"
23 #include "want.h"
24 #include "iremote_object.h"
25 #include "bundle_info.h"
26 #include "app_launch_data.h"
27 #include "app_running_record.h"
28 #include "app_running_manager.h"
29 #include "test_observer.h"
30
31 using namespace OHOS::AAFwk;
32 using namespace OHOS::AppExecFwk;
33 namespace OHOS {
34 namespace {
35 constexpr size_t FOO_MAX_LEN = 1024;
36 constexpr size_t U32_AT_SIZE = 4;
37 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)38 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
39 {
40 auto abilityMgr = AbilityManagerClient::GetInstance();
41 if (!abilityMgr) {
42 std::cout << "Get ability manager client failed." << std::endl;
43 return false;
44 }
45
46 // get observer
47 sptr<TestObserver> observer = new (std::nothrow) TestObserver();
48
49 // fuzz for want
50 Parcel wantParcel;
51 Want *want = nullptr;
52 if (wantParcel.WriteBuffer(data, size)) {
53 want = Want::Unmarshalling(wantParcel);
54 if (want) {
55 abilityMgr->StartUserTest(*want, observer->AsObject());
56 }
57 }
58
59 if (want) {
60 delete want;
61 want = nullptr;
62 }
63
64 return true;
65 }
66 }
67
68 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)69 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
70 {
71 /* Run your code on data */
72 if (data == nullptr) {
73 std::cout << "invalid data" << std::endl;
74 return 0;
75 }
76
77 /* Validate the length of size */
78 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
79 return 0;
80 }
81
82 char* ch = (char *)malloc(size + 1);
83 if (ch == nullptr) {
84 std::cout << "malloc failed." << std::endl;
85 return 0;
86 }
87
88 (void)memset_s(ch, size + 1, 0x00, size + 1);
89 if (memcpy_s(ch, size, data, size) != EOK) {
90 std::cout << "copy failed." << std::endl;
91 free(ch);
92 ch = nullptr;
93 return 0;
94 }
95
96 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
97 free(ch);
98 ch = nullptr;
99 return 0;
100 }
101