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 "formabilityconnection_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "form_ability_connection.h"
22 #define private public
23 #define protected public
24 #include "form_ams_helper.h"
25 #undef private
26 #undef protected
27 #include "securec.h"
28
29 using namespace OHOS::AppExecFwk;
30
31 namespace OHOS {
32 constexpr size_t FOO_MAX_LEN = 1024;
33 constexpr size_t U32_AT_SIZE = 4;
34 constexpr uint8_t ENABLE = 2;
GetU32Data(const char * ptr)35 uint32_t GetU32Data(const char* ptr)
36 {
37 // convert fuzz input data to an integer
38 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
39 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)40 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
41 {
42 FormAbilityConnection formAbilityConnection;
43 AppExecFwk::ElementName element;
44 sptr<IRemoteObject> remoteObjects = nullptr;
45 int resultCode = static_cast<int>(GetU32Data(data));
46 formAbilityConnection.OnAbilityConnectDone(element, remoteObjects, resultCode);
47 formAbilityConnection.GetProviderKey();
48 std::string bundleName(data, size);
49 std::string abilityName(data, size);
50 formAbilityConnection.SetProviderKey(bundleName, abilityName);
51 bool isFreeInstall = *data % ENABLE;
52 formAbilityConnection.SetFreeInstall(isFreeInstall);
53 int64_t formId = static_cast<int64_t>(GetU32Data(data));
54 formAbilityConnection.SetFormId(formId);
55 formAbilityConnection.GetFormId();
56 sptr<IRemoteObject> hostToken = nullptr;
57 formAbilityConnection.SetHostToken(hostToken);
58 formAbilityConnection.GetHostToken();
59 sptr<IRemoteObject> providerToken = nullptr;
60 formAbilityConnection.SetProviderToken(providerToken);
61 formAbilityConnection.GetProviderToken();
62 int32_t connectId = static_cast<int32_t>(GetU32Data(data));
63 formAbilityConnection.SetConnectId(connectId);
64 FormAmsHelper formAmsHelper;
65 formAmsHelper.GetAbilityManager();
66 Want want;
67 sptr<AAFwk::IAbilityConnection> connect = nullptr;
68 formAmsHelper.ConnectServiceAbility(want, connect);
69 formAmsHelper.DisconnectServiceAbility(connect);
70 formAmsHelper.DisconnectServiceAbilityDelay(connect);
71 sptr<AAFwk::IAbilityManager> abilityManager = nullptr;
72 formAmsHelper.SetAbilityManager(abilityManager);
73 formAmsHelper.DisconnectAbilityTask(connect);
74 int32_t userId = static_cast<int32_t>(GetU32Data(data));
75 formAmsHelper.StartAbility(want, userId);
76 return formAbilityConnection.GetConnectId();
77 }
78 }
79
80 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)81 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
82 {
83 /* Run your code on data */
84 if (data == nullptr) {
85 return 0;
86 }
87
88 if (size < OHOS::U32_AT_SIZE) {
89 return 0;
90 }
91
92 /* Validate the length of size */
93 if (size == 0 || size > OHOS::FOO_MAX_LEN) {
94 return 0;
95 }
96
97 char* ch = (char *)malloc(size + 1);
98 if (ch == nullptr) {
99 return 0;
100 }
101
102 (void)memset_s(ch, size + 1, 0x00, size + 1);
103 if (memcpy_s(ch, size, data, size) != EOK) {
104 free(ch);
105 ch = nullptr;
106 return 0;
107 }
108
109 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
110 free(ch);
111 ch = nullptr;
112 return 0;
113 }
114
115