1 /*
2 * Copyright (C) 2022-2023 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 "datatransmitmgr_fuzzer.h"
17
18 #include <stddef.h>
19 #include <stdint.h>
20
21 #include "securec.h"
22 #include "dev_slinfo_mgr.h"
23 #include "softbus_bus_center.h"
24 #include "nativetoken_kit.h"
25 #include "token_setproc.h"
26 #include "accesstoken_kit.h"
27
28 namespace OHOS {
tmpCallback(DEVSLQueryParams * queryParams,int32_t result,uint32_t levelInfo)29 static void tmpCallback(DEVSLQueryParams *queryParams, int32_t result, uint32_t levelInfo)
30 {
31 return;
32 }
33
GetLocalUdid(DEVSLQueryParams * queryParams)34 static void GetLocalUdid(DEVSLQueryParams *queryParams)
35 {
36 const char *pkgName = "ohos.dslm";
37 NodeBasicInfo info;
38 (void)GetLocalNodeDeviceInfo(pkgName, &info);
39 if (GetNodeKeyInfo(pkgName, info.networkId, NODE_KEY_UDID, (uint8_t *)(queryParams->udid), UDID_BUF_LEN) != 0) {
40 return;
41 }
42 queryParams->udidLen = MAX_UDID_LENGTH;
43 }
44
FuzzDoDataTransmitMgr(const uint8_t * data,size_t size)45 void FuzzDoDataTransmitMgr(const uint8_t* data, size_t size)
46 {
47 if (data == nullptr) {
48 return;
49 }
50 if (size < MAX_UDID_LENGTH) {
51 return;
52 }
53 uint32_t levelInfo = 0;
54 DEVSLQueryParams queryParams;
55 (void)memset_s(&queryParams, sizeof(DEVSLQueryParams), 0, sizeof(DEVSLQueryParams));
56 queryParams.udidLen = MAX_UDID_LENGTH;
57 (void)memcpy_s(queryParams.udid, queryParams.udidLen, data, MAX_UDID_LENGTH);
58
59 int32_t ret = DATASL_OnStart();
60 if (ret != DEVSL_SUCCESS) {
61 return;
62 }
63 (void)DATASL_GetHighestSecLevelAsync(&queryParams, tmpCallback);
64 (void)DATASL_GetHighestSecLevelAsync(nullptr, tmpCallback);
65 (void)DATASL_GetHighestSecLevelAsync(&queryParams, nullptr);
66 (void)DATASL_GetHighestSecLevel(&queryParams, &levelInfo);
67 (void)DATASL_GetHighestSecLevel(nullptr, &levelInfo);
68 (void)DATASL_GetHighestSecLevel(&queryParams, nullptr);
69 GetLocalUdid(&queryParams);
70 (void)DATASL_GetHighestSecLevelAsync(&queryParams, tmpCallback);
71 (void)DATASL_GetHighestSecLevel(&queryParams, &levelInfo);
72 DATASL_OnStop();
73 }
74 }
75
NativeTokenGetFUZZ()76 static void NativeTokenGetFUZZ()
77 {
78 uint64_t tokenId;
79 const char **perms = new const char *[1];
80 perms[0] = "ohos.permission.DISTRIBUTED_DATASYNC";
81 NativeTokenInfoParams infoInstance = {
82 .acls = nullptr,
83 .dcaps = nullptr,
84 .aclsNum = 0,
85 .dcapsNum = 0,
86 .permsNum = 1,
87 .perms = perms,
88 .aplStr = "system_basic",
89 };
90
91 infoInstance.processName = "DataTransmitMgrFuzzTest";
92 tokenId = GetAccessTokenId(&infoInstance);
93 SetSelfTokenID(tokenId);
94 OHOS::Security::AccessToken::AccessTokenKit::ReloadNativeTokenInfo();
95 delete[] perms;
96 }
97
98 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)99 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
100 {
101 /* Run your code on data */
102 NativeTokenGetFUZZ();
103 OHOS::FuzzDoDataTransmitMgr(data, size);
104 return 0;
105 }