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 "devauthservauthdevice_fuzzer.h"
17 #include "device_auth.h"
18 #include "device_auth_defines.h"
19 #include "hc_dev_info.h"
20 #include "hc_log.h"
21 #include "json_utils.h"
22 #include "securec.h"
23 #include <unistd.h>
24
25 #define TEST_APP_NAME "ohos.security.deviceauth"
26
27 namespace OHOS {
28 static char g_groupId[128] = { 0 };
29
OnError(int64_t requestId,int operationCode,int errorCode,const char * errorReturn)30 static void OnError(int64_t requestId, int operationCode, int errorCode, const char *errorReturn)
31 {
32 LOGE("error return: %s", errorReturn);
33 }
34
OnFinish(int64_t requestId,int operationCode,const char * authReturn)35 static void OnFinish(int64_t requestId, int operationCode, const char *authReturn)
36 {
37 LOGI("return value: %s", authReturn);
38 if (operationCode == GROUP_CREATE) {
39 CJson *json = CreateJsonFromString(authReturn);
40 if (json != nullptr) {
41 const char *data = GetStringFromJson(json, FIELD_GROUP_ID);
42 if (data != nullptr) {
43 (void)memcpy_s(g_groupId, sizeof(g_groupId), data, strlen(data));
44 g_groupId[strlen(data)] = 0;
45 }
46 FreeJson(json);
47 }
48 }
49 }
50
OnSessionKeyReturned(int64_t requestId,const uint8_t * sessionKey,uint32_t sessionKeyLen)51 static void OnSessionKeyReturned(int64_t requestId, const uint8_t *sessionKey, uint32_t sessionKeyLen) {}
52
OnTransmit(int64_t requestId,const uint8_t * data,uint32_t dataLen)53 static bool OnTransmit(int64_t requestId, const uint8_t *data, uint32_t dataLen)
54 {
55 return true;
56 }
57
OnRequest(int64_t requestId,int operationCode,const char * reqParam)58 static char *OnRequest(int64_t requestId, int operationCode, const char* reqParam)
59 {
60 return nullptr;
61 }
62
63 static DeviceAuthCallback g_devAuthCallback = {
64 .onTransmit = OnTransmit,
65 .onSessionKeyReturned = OnSessionKeyReturned,
66 .onFinish = OnFinish,
67 .onError = OnError,
68 .onRequest = OnRequest,
69 };
70
GenerateAuthParamsJson(CJson * json,const char * deviceId)71 static void GenerateAuthParamsJson(CJson *json, const char *deviceId)
72 {
73 AddStringToJson(json, FIELD_PEER_CONN_DEVICE_ID, deviceId);
74 AddStringToJson(json, FIELD_SERVICE_PKG_NAME, TEST_APP_NAME);
75 AddBoolToJson(json, FIELD_IS_CLIENT, true);
76 AddBoolToJson(json, FIELD_IS_DEVICE_LEVEL, true);
77 }
78
FuzzDoAuthDevice(const uint8_t * data,size_t size)79 bool FuzzDoAuthDevice(const uint8_t* data, size_t size)
80 {
81 if (data == nullptr) {
82 return false;
83 }
84 InitDeviceAuthService();
85 std::string appId(reinterpret_cast<const char *>(data), size);
86 const DeviceGroupManager *gmInstance = GetGmInstance();
87 gmInstance->regCallback(appId.c_str(), &g_devAuthCallback);
88 CJson *createJson = CreateJson();
89 AddStringToJson(createJson, FIELD_GROUP_NAME, appId.c_str());
90 char localUdid[INPUT_UDID_LEN] = { 0 };
91 HcGetUdid(reinterpret_cast<uint8_t *>(localUdid), INPUT_UDID_LEN);
92 AddStringToJson(createJson, FIELD_DEVICE_ID, localUdid);
93 AddIntToJson(createJson, FIELD_GROUP_TYPE, PEER_TO_PEER_GROUP);
94 char *createParams = PackJsonToString(createJson);
95 FreeJson(createJson);
96 int64_t reqId = 123;
97 gmInstance->createGroup(0, reqId, appId.c_str(), createParams);
98 sleep(1);
99 ClearAndFreeJsonString(createParams);
100 std::string deviceId(reinterpret_cast<const char *>(data), size);
101 CJson *authParamsJson = CreateJson();
102 GenerateAuthParamsJson(authParamsJson, deviceId.c_str());
103 char *authParams = PackJsonToString(authParamsJson);
104 FreeJson(authParamsJson);
105 LOGI("auth params str:%s", authParams);
106 const GroupAuthManager *gaInstance = GetGaInstance();
107 gaInstance->authDevice(0, reqId, authParams, &g_devAuthCallback);
108 sleep(1);
109 ClearAndFreeJsonString(authParams);
110 DestroyDeviceAuthService();
111 return true;
112 }
113 }
114
115 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)116 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
117 {
118 /* Run your code on data */
119 OHOS::FuzzDoAuthDevice(data, size);
120 return 0;
121 }
122
123