1 /*
2 * Copyright (c) 2025 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 "formhosttaskmgr_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_host/form_host_task_mgr.h"
24 #undef private
25 #undef protected
26 #include "securec.h"
27
28 using namespace OHOS::AppExecFwk;
29
30 namespace OHOS {
31 constexpr size_t U32_AT_SIZE = 4;
GetU32Data(const char * ptr)32 uint32_t GetU32Data(const char* ptr)
33 {
34 // convert fuzz input data to an integer
35 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
36 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)37 void DoSomethingInterestingWithMyAPI(const char* data, size_t size)
38 {
39 FormHostTaskMgr formTaskMgr;
40 int64_t formId = static_cast<int64_t>(GetU32Data(data));
41 sptr<IRemoteObject> remoteObject = nullptr;
42 FormRecord record;
43 formTaskMgr.PostAcquireTaskToHost(formId, record, remoteObject);
44 formTaskMgr.PostUpdateTaskToHost(formId, record, remoteObject);
45 std::vector<int64_t> formIds;
46 formIds.emplace_back(formId);
47 formTaskMgr.PostUninstallTaskToHost(formIds, remoteObject);
48 AppExecFwk::FormState state = AppExecFwk::FormState::UNKNOWN;
49 AAFwk::Want wants;
50 formTaskMgr.PostAcquireStateTaskToHost(state, wants, remoteObject);
51 AAFwk::WantParams wantParams;
52 int64_t requestCode = 1;
53 formTaskMgr.PostAcquireDataTaskToHost(wantParams, requestCode, remoteObject);
54 formTaskMgr.PostEnableFormsTaskToHost(formIds, false, remoteObject);
55 formTaskMgr.PostLockFormsTaskToHost(formIds, false, remoteObject);
56 formTaskMgr.PostFrsDiedTaskToHost(remoteObject);
57 sptr<IRemoteObject> remoteHost = nullptr;
58 formTaskMgr.PostHostDiedTask(remoteHost);
59 formTaskMgr.AcquireTaskToHost(formId, record, remoteObject);
60 formTaskMgr.UpdateTaskToHost(formId, record, remoteObject);
61 formTaskMgr.FormUninstall(formIds, remoteObject);
62 formTaskMgr.AcquireStateBack(state, wants, remoteObject);
63 formTaskMgr.AcquireFormDataBack(wantParams, requestCode, remoteObject);
64 formTaskMgr.EnableFormsTaskToHost(formIds, false, remoteObject);
65 formTaskMgr.LockFormsTaskToHost(formIds, false, remoteObject);
66 formTaskMgr.FrsDiedTaskToHost(remoteObject);
67 formTaskMgr.HostDied(remoteHost);
68 }
69 }
70
71 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)72 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
73 {
74 /* Run your code on data */
75 if (data == nullptr) {
76 return 0;
77 }
78
79 if (size < OHOS::U32_AT_SIZE) {
80 return 0;
81 }
82
83 char* ch = static_cast<char*>(malloc(size + 1));
84 if (ch == nullptr) {
85 return 0;
86 }
87
88 (void)memset_s(ch, size + 1, 0x00, size + 1);
89 if (memcpy_s(ch, size + 1, data, size) != EOK) {
90 free(ch);
91 ch = nullptr;
92 return 0;
93 }
94
95 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
96 free(ch);
97 ch = nullptr;
98 return 0;
99 }
100
101