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 "nmeamessagecallbackhost_fuzzer.h"
17
18 #include "accesstoken_kit.h"
19 #include "if_system_ability_manager.h"
20 #include "iservice_registry.h"
21 #include "message_option.h"
22 #include "message_parcel.h"
23 #include "nativetoken_kit.h"
24 #include "system_ability_definition.h"
25 #include "token_setproc.h"
26 #include "locator_ability.h"
27
28 #ifdef FEATURE_GNSS_SUPPORT
29 #include "nmea_message_callback_napi.h"
30 #endif
31
32 namespace OHOS {
33 using namespace OHOS::Location;
34 const int32_t MAX_MEM_SIZE = 4 * 1024 * 1024;
35
ParseData(const uint8_t * data,size_t size)36 char* ParseData(const uint8_t* data, size_t size)
37 {
38 if (data == nullptr) {
39 return nullptr;
40 }
41
42 if (size > MAX_MEM_SIZE) {
43 return nullptr;
44 }
45
46 char* ch = (char *)malloc(size + 1);
47 if (ch == nullptr) {
48 return nullptr;
49 }
50
51 (void)memset_s(ch, size + 1, 0x00, size + 1);
52 if (memcpy_s(ch, size, data, size) != EOK) {
53 free(ch);
54 ch = nullptr;
55 return nullptr;
56 }
57 return ch;
58 }
59
60 #ifdef FEATURE_GNSS_SUPPORT
NmeaMessageCallbackHostFuzzTest(const char * data,size_t size)61 bool NmeaMessageCallbackHostFuzzTest(const char* data, size_t size)
62 {
63 MessageParcel requestParcel;
64 requestParcel.WriteInterfaceToken(u"location.INmeaMessageCallback");
65 requestParcel.WriteBuffer(data, size);
66 requestParcel.RewindRead(0);
67
68 MessageParcel reply;
69 MessageOption option;
70 auto callback = sptr<NmeaMessageCallbackNapi>(new (std::nothrow) NmeaMessageCallbackNapi());
71 callback->OnRemoteRequest(INmeaMessageCallback::RECEIVE_NMEA_MESSAGE_EVENT, requestParcel, reply, option);
72 return true;
73 }
74 #endif
75 } // namespace OHOS
76
77 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)78 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
79 {
80 char* ch = OHOS::ParseData(data, size);
81 if (ch != nullptr) {
82 #ifdef FEATURE_GNSS_SUPPORT
83 OHOS::NmeaMessageCallbackHostFuzzTest(ch, size);
84 #endif
85 free(ch);
86 ch = nullptr;
87 }
88 return 0;
89 }
90
91