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 "setabilitycontroller_fuzzer.h"
17  
18  #include <cstddef>
19  #include <cstdint>
20  
21  #include "ability_manager_client.h"
22  #include "ability_record.h"
23  #include "iability_controller.h"
24  
25  using namespace OHOS::AAFwk;
26  using namespace OHOS::AppExecFwk;
27  
28  namespace OHOS {
29  namespace {
30  constexpr size_t FOO_MAX_LEN = 1024;
31  constexpr size_t U32_AT_SIZE = 4;
32  constexpr uint8_t ENABLE = 2;
33  }
34  class AbilityControllerFuzz : public IRemoteStub<IAbilityController> {
35  public:
36      AbilityControllerFuzz();
37      virtual ~AbilityControllerFuzz();
38      virtual bool AllowAbilityStart(const Want& want, const std::string& bundleName) override;
39      virtual bool AllowAbilityBackground(const std::string& bundleName) override;
40  };
DoSomethingInterestingWithMyAPI(const char * data,size_t size)41  bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
42  {
43      auto abilitymgr = AbilityManagerClient::GetInstance();
44      if (!abilitymgr) {
45          return false;
46      }
47  
48      sptr<AbilityControllerFuzz> abilityController;
49      bool imAStabilityTest = *data % ENABLE;
50      if (abilitymgr->SetAbilityController(abilityController, imAStabilityTest) != 0) {
51          return false;
52      }
53  
54      return true;
55  }
56  }
57  
58  /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)59  extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
60  {
61      /* Run your code on data */
62      if (data == nullptr) {
63          std::cout << "invalid data" << std::endl;
64          return 0;
65      }
66  
67      /* Validate the length of size */
68      if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
69          return 0;
70      }
71  
72      char* ch = static_cast<char*>(malloc(size + 1));
73      if (ch == nullptr) {
74          std::cout << "malloc failed." << std::endl;
75          return 0;
76      }
77  
78      (void)memset_s(ch, size + 1, 0x00, size + 1);
79      if (memcpy_s(ch, size, data, size) != EOK) {
80          std::cout << "copy failed." << std::endl;
81          free(ch);
82          ch = nullptr;
83          return 0;
84      }
85  
86      OHOS::DoSomethingInterestingWithMyAPI(ch, size);
87      free(ch);
88      ch = nullptr;
89      return 0;
90  }
91  
92