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 "telephony_call_policy_plugin_fuzzer.h"
17 #include <system_ability_definition.h>
18
19 #define protected public
20 #define private public
21 #include "telephony_call_policy_plugin.h"
22 #undef protected
23 #undef private
24 #include "common_fuzzer.h"
25 #include "edm_ipc_interface_code.h"
26 #include "func_code.h"
27 #include "get_data_template.h"
28 #include "ienterprise_device_mgr.h"
29 #include "message_parcel.h"
30 #include "plugin_manager.h"
31 #include "usb_device_id.h"
32 #include "utils.h"
33
34 namespace OHOS {
35 namespace EDM {
36 constexpr size_t MIN_SIZE = 24;
37 constexpr int32_t WITHOUT_USERID = 0;
38
CheckPrivateFunction(const uint8_t * data,const size_t size,int32_t & pos)39 void CheckPrivateFunction(const uint8_t* data, const size_t size, int32_t &pos)
40 {
41 int32_t stringSize = size / 18;
42 int32_t policyFlag = size % 3;
43 TelephonyCallPolicyPlugin plugin;
44 std::vector<std::string> v1 {CommonFuzzer::GetString(data, pos, stringSize, size)};
45 std::vector<std::string> v2 {CommonFuzzer::GetString(data, pos, stringSize, size)};
46 plugin.MergeAndRemoveDuplicates(v1, v2);
47 TelephonyCallPolicyType info1 {v1, policyFlag};
48 TelephonyCallPolicyType info2 {v2, policyFlag};
49 std::string key = CommonFuzzer::GetString(data, pos, stringSize, size);
50 std::map<std::string, TelephonyCallPolicyType> dataMap1 = {{key, info1}};
51 std::map<std::string, TelephonyCallPolicyType> dataMap2 = {{key, info2}};
52 int32_t flag = CommonFuzzer::GetU32Data(data);
53 plugin.IsTrustBlockConflict(key, flag, dataMap1);
54 plugin.CheckIsLimit(key, flag, v2, dataMap1);
55 std::string adminName = CommonFuzzer::GetString(data, pos, stringSize, size);
56 std::string policyData = CommonFuzzer::GetString(data, pos, stringSize, size);
57 std::string mergeData = CommonFuzzer::GetString(data, pos, stringSize, size);
58 int32_t userId = CommonFuzzer::GetU32Data(data);
59 plugin.AddCurrentAndMergePolicy(dataMap1, dataMap2, key, flag, v1);
60 plugin.RemoveCurrentAndMergePolicy(dataMap1, dataMap2, key, flag, v1);
61 int32_t userId100 = 100;
62 plugin.GetOthersMergePolicyData(adminName, userId100, policyData);
63 plugin.OnAdminRemove(adminName, policyData, mergeData, userId);
64 plugin.OnOtherServiceStart(userId);
65 }
66
67 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)68 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
69 {
70 if (data == nullptr) {
71 return 0;
72 }
73 if (size < MIN_SIZE) {
74 return 0;
75 }
76 int32_t pos = 0;
77 int32_t stringSize = size / 18;
78 int32_t policyFlag = size % 3;
79 for (uint32_t operateType = static_cast<uint32_t>(FuncOperateType::GET);
80 operateType <= static_cast<uint32_t>(FuncOperateType::REMOVE); operateType++) {
81 uint32_t code = EdmInterfaceCode::DISALLOWED_SIM;
82 code = POLICY_FUNC_CODE(operateType, code);
83
84 AppExecFwk::ElementName admin;
85 admin.SetBundleName(CommonFuzzer::GetString(data, pos, stringSize, size));
86 admin.SetAbilityName(CommonFuzzer::GetString(data, pos, stringSize, size));
87 std::string callType = CommonFuzzer::GetString(data, pos, stringSize, size);
88 MessageParcel parcel;
89 parcel.WriteInterfaceToken(IEnterpriseDeviceMgrIdl::GetDescriptor());
90 parcel.WriteInt32(WITHOUT_USERID);
91 if (operateType) {
92 parcel.WriteParcelable(&admin);
93 parcel.WriteString("");
94 parcel.WriteString(callType);
95 parcel.WriteInt32(policyFlag);
96 std::vector<std::string> numbers {CommonFuzzer::GetString(data, pos, stringSize, size)};
97 parcel.WriteStringVector(numbers);
98 } else {
99 parcel.WriteString("");
100 parcel.WriteInt32(0);
101 parcel.WriteParcelable(&admin);
102 parcel.WriteString(callType);
103 parcel.WriteInt32(policyFlag);
104 }
105 CommonFuzzer::OnRemoteRequestFuzzerTest(code, data, size, parcel);
106 }
107
108 CheckPrivateFunction(data, size, pos);
109 return 0;
110 }
111 } // namespace EDM
112 } // namespace OHOS