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