1 /*
2 * Copyright (c) 2025 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 "createosaccount_fuzzer.h"
17
18 #include <cstdint>
19 #include <string>
20 #include <vector>
21
22 #include "access_token.h"
23 #include "access_token_error.h"
24 #include "accesstoken_kit.h"
25 #include "account_log_wrapper.h"
26 #include "fuzz_data.h"
27 #include "nativetoken_kit.h"
28 #include "os_account_constants.h"
29 #include "os_account_manager.h"
30 #include "securec.h"
31 #include "token_setproc.h"
32
33 using namespace std;
34 using namespace OHOS::AccountSA;
35 using namespace OHOS::Security::AccessToken;
36
37 namespace OHOS {
38 constexpr uint32_t MAX_ACCOUNT_TYPE_COUNT = 5;
39
GetAccountType(FuzzData & fuzzData,bool useValid)40 OsAccountType GetAccountType(FuzzData& fuzzData, bool useValid)
41 {
42 if (useValid) {
43 return OsAccountType::NORMAL;
44 }
45 return static_cast<OsAccountType>(fuzzData.GetData<uint32_t>() % MAX_ACCOUNT_TYPE_COUNT);
46 }
47
CreateOsAccountFuzzTest(const uint8_t * data,size_t size)48 bool CreateOsAccountFuzzTest(const uint8_t* data, size_t size)
49 {
50 if ((data == nullptr) || (size == 0)) {
51 return false;
52 }
53
54 FuzzData fuzzData(data, size);
55 bool useValidParams = fuzzData.GetData<bool>();
56
57 OsAccountInfo osAccountInfoOne;
58 OsAccountType testType = GetAccountType(fuzzData, useValidParams);
59 std::string accountName = fuzzData.GenerateString();
60
61 int32_t result = OsAccountManager::CreateOsAccount(accountName, testType, osAccountInfoOne);
62 if (result == ERR_OK) {
63 ACCOUNT_LOGI("CreateOsAccountFuzzTest RemoveOsAccount");
64 OsAccountManager::RemoveOsAccount(osAccountInfoOne.GetLocalId());
65 }
66
67 return result == ERR_OK;
68 }
69
70 } // namespace OHOS
71
NativeTokenGet()72 void NativeTokenGet()
73 {
74 uint64_t tokenId;
75 const char **perms = new const char *[1];
76 perms[0] = "ohos.permission.MANAGE_LOCAL_ACCOUNTS";
77 NativeTokenInfoParams infoInstance = {
78 .dcapsNum = 0,
79 .permsNum = 1,
80 .aclsNum = 0,
81 .perms = perms,
82 .acls = nullptr,
83 .aplStr = "system_core",
84 };
85 infoInstance.processName = "RegisterInputer";
86 tokenId = GetAccessTokenId(&infoInstance);
87 SetSelfTokenID(tokenId);
88 AccessTokenKit::ReloadNativeTokenInfo();
89 delete[] perms;
90 }
91
92 /* Fuzzer entry point */
LLVMFuzzerInitialize(int * argc,char *** argv)93 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
94 {
95 NativeTokenGet();
96 return 0;
97 }
98
99 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)100 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
101 {
102 OHOS::CreateOsAccountFuzzTest(data, size);
103 return 0;
104 }