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 "devauthservgetgroupinfo_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 namespace OHOS {
26 static char g_groupId[128] = { 0 };
27
OnError(int64_t requestId,int operationCode,int errorCode,const char * errorReturn)28 static void OnError(int64_t requestId, int operationCode, int errorCode, const char *errorReturn)
29 {
30 LOGE("error return: %s", errorReturn);
31 }
32
OnFinish(int64_t requestId,int operationCode,const char * authReturn)33 static void OnFinish(int64_t requestId, int operationCode, const char *authReturn)
34 {
35 LOGI("return value: %s", authReturn);
36 if (operationCode == GROUP_CREATE) {
37 CJson *json = CreateJsonFromString(authReturn);
38 if (json != nullptr) {
39 const char *data = GetStringFromJson(json, FIELD_GROUP_ID);
40 if (data != nullptr) {
41 (void)memcpy_s(g_groupId, strlen(data), data, strlen(data));
42 g_groupId[strlen(data)] = 0;
43 }
44 FreeJson(json);
45 }
46 }
47 }
48
OnSessionKeyReturned(int64_t requestId,const uint8_t * sessionKey,uint32_t sessionKeyLen)49 static void OnSessionKeyReturned(int64_t requestId, const uint8_t *sessionKey, uint32_t sessionKeyLen) {}
50
OnTransmit(int64_t requestId,const uint8_t * data,uint32_t dataLen)51 static bool OnTransmit(int64_t requestId, const uint8_t *data, uint32_t dataLen)
52 {
53 return true;
54 }
55
OnRequest(int64_t requestId,int operationCode,const char * reqParam)56 static char *OnRequest(int64_t requestId, int operationCode, const char* reqParam)
57 {
58 return nullptr;
59 }
60
61 static DeviceAuthCallback g_gmCallback = {
62 .onTransmit = OnTransmit,
63 .onSessionKeyReturned = OnSessionKeyReturned,
64 .onFinish = OnFinish,
65 .onError = OnError,
66 .onRequest = OnRequest,
67 };
68
GenerateReqJson(CJson * json,const char * appId)69 static void GenerateReqJson(CJson *json, const char *appId)
70 {
71 AddStringToJson(json, FIELD_GROUP_ID, g_groupId);
72 AddStringToJson(json, FIELD_GROUP_NAME, appId);
73 AddStringToJson(json, FIELD_GROUP_OWNER, appId);
74 AddIntToJson(json, FIELD_GROUP_TYPE, PEER_TO_PEER_GROUP);
75 }
76
FuzzDoGetGroupInfo(const uint8_t * data,size_t size)77 bool FuzzDoGetGroupInfo(const uint8_t* data, size_t size)
78 {
79 if (data == nullptr) {
80 return false;
81 }
82 InitDeviceAuthService();
83 std::string appId(reinterpret_cast<const char *>(data), size);
84 const DeviceGroupManager *gmInstance = GetGmInstance();
85 gmInstance->regCallback(appId.c_str(), &g_gmCallback);
86 CJson *createJson = CreateJson();
87 AddStringToJson(createJson, FIELD_GROUP_NAME, appId.c_str());
88 char localUdid[INPUT_UDID_LEN] = { 0 };
89 HcGetUdid(reinterpret_cast<uint8_t *>(localUdid), INPUT_UDID_LEN);
90 AddStringToJson(createJson, FIELD_DEVICE_ID, localUdid);
91 AddIntToJson(createJson, FIELD_GROUP_TYPE, PEER_TO_PEER_GROUP);
92 char *createParams = PackJsonToString(createJson);
93 FreeJson(createJson);
94 int64_t reqId = 123;
95 gmInstance->createGroup(0, reqId, appId.c_str(), createParams);
96 sleep(1);
97 ClearAndFreeJsonString(createParams);
98 CJson *reqJson = CreateJson();
99 GenerateReqJson(reqJson, appId.c_str());
100 char *reqJsonStr = PackJsonToString(reqJson);
101 FreeJson(reqJson);
102 char *returnGroupVec = nullptr;
103 uint32_t groupNum = 0;
104 gmInstance->getGroupInfo(0, appId.c_str(), reqJsonStr, &returnGroupVec, &groupNum);
105 if (returnGroupVec != nullptr) {
106 gmInstance->destroyInfo(&returnGroupVec);
107 }
108 ClearAndFreeJsonString(reqJsonStr);
109 DestroyDeviceAuthService();
110 return true;
111 }
112 }
113
114 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)115 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
116 {
117 /* Run your code on data */
118 OHOS::FuzzDoGetGroupInfo(data, size);
119 return 0;
120 }
121
122