1/*
2 * Copyright (c) 2021-2022 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 * miscservices under the License is miscservices 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 "screenlockmanager_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#include "message_parcel.h"
22#include "screenlock_app_manager.h"
23#include "screenlock_callback.h"
24#include "screenlock_manager.h"
25#include "screenlock_manager_interface.h"
26#include "screenlock_system_ability.h"
27#include "screenlock_system_ability_callback.h"
28
29using namespace OHOS::ScreenLock;
30
31namespace OHOS {
32constexpr size_t THRESHOLD = 10;
33constexpr int32_t OFFSET = 4;
34constexpr size_t LENGTH = 1;
35constexpr size_t RANDNUM_ZERO = 0;
36constexpr size_t RANDNUM_ONE = 1;
37constexpr size_t RANDNUM_TWO = 2;
38
39uint32_t ConvertToUint32(const uint8_t *ptr)
40{
41    if (ptr == nullptr) {
42        return 0;
43    }
44    uint32_t bigvar = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
45    return bigvar;
46}
47
48bool FuzzScreenlockManager(const uint8_t *rawData, size_t size)
49{
50    uint32_t code = ConvertToUint32(rawData);
51    EventListener eventListener;
52    if (code == RANDNUM_ZERO) {
53        return ScreenLockManager::GetInstance()->IsScreenLocked();
54    }
55    if (code == RANDNUM_ONE) {
56        return ScreenLockManager::GetInstance()->GetSecure();
57    }
58    if (code == RANDNUM_TWO) {
59        sptr<ScreenlockCallback> listener_ = new ScreenlockCallback(eventListener);
60        int32_t ret = ScreenLockManager::GetInstance()->Lock(listener_);
61        return ret == E_SCREENLOCK_OK;
62    }
63    return true;
64}
65
66bool UnlockFuzzTest(const uint8_t *rawData, size_t size)
67{
68    EventListener eventListener;
69    sptr<ScreenlockCallback> listener_ = new ScreenlockCallback(eventListener);
70    if (size < LENGTH) {
71        return true;
72    }
73    int32_t ret = ScreenLockManager::GetInstance()->Unlock(static_cast<Action>(rawData[0] % 3), listener_);
74    return ret == E_SCREENLOCK_OK;
75}
76
77bool IsLockedFuzzTest(const uint8_t *rawData, size_t size)
78{
79    if (size < LENGTH) {
80        return true;
81    }
82    bool isLocked = static_cast<bool>(rawData[0] % 2);
83    int32_t ret = ScreenLockManager::GetInstance()->IsLocked(isLocked);
84    return ret == E_SCREENLOCK_OK;
85}
86
87bool FuzzScreenlockAppManager(const uint8_t *rawData, size_t size)
88{
89    uint32_t code = ConvertToUint32(rawData);
90    rawData = rawData + OFFSET;
91    size = size - OFFSET;
92    EventListener eventListener;
93    if (code == RANDNUM_ZERO) {
94        sptr<ScreenlockSystemAbilityCallback> listener_ = new ScreenlockSystemAbilityCallback(eventListener);
95        int32_t ret = ScreenLockAppManager::GetInstance()->OnSystemEvent(listener_);
96        return ret == E_SCREENLOCK_OK;
97    }
98    if (code == RANDNUM_ONE) {
99        int param = 0;
100        std::string event(reinterpret_cast<const char *>(rawData), size);
101        int32_t ret = ScreenLockAppManager::GetInstance()->SendScreenLockEvent(event, param);
102        return ret == E_SCREENLOCK_OK;
103    }
104    return true;
105}
106
107bool FuzzScreenlockIsDisabled(const uint8_t *rawData, size_t size)
108{
109    if (size < LENGTH) {
110        return true;
111    }
112    int32_t userId = 100;
113    bool isDisabled = static_cast<bool>(rawData[0] % 2);
114    int32_t ret = ScreenLockAppManager::GetInstance()->IsScreenLockDisabled(userId, isDisabled);
115    return ret == E_SCREENLOCK_OK;
116}
117
118bool FuzzScreenlockSetDisabled(const uint8_t *rawData, size_t size)
119{
120    if (size < LENGTH) {
121        return true;
122    }
123    int32_t userId = 100;
124    bool isDisabled = static_cast<bool>(rawData[0] % 2);
125    int32_t ret = ScreenLockAppManager::GetInstance()->SetScreenLockDisabled(isDisabled, userId);
126    return ret == E_SCREENLOCK_OK;
127}
128
129bool FuzzScreenlockSetAuthState(const uint8_t *rawData, size_t size)
130{
131    if (size < LENGTH) {
132        return true;
133    }
134    int32_t userId = 100;
135    int32_t authState = 2;
136    std::string authToken = "test";
137    int32_t ret = ScreenLockAppManager::GetInstance()->SetScreenLockAuthState(authState, userId, authToken);
138    return ret == E_SCREENLOCK_OK;
139}
140
141bool FuzzScreenlockGetAuthState(const uint8_t *rawData, size_t size)
142{
143    if (size < LENGTH) {
144        return true;
145    }
146    int32_t userId = 100;
147    int32_t authState = 2;
148    int32_t ret = ScreenLockAppManager::GetInstance()->GetScreenLockAuthState(userId, authState);
149    return ret == E_SCREENLOCK_OK;
150}
151
152bool FuzzScreenlockRequestStrongAuth(const uint8_t *rawData, size_t size)
153{
154    if (size < LENGTH) {
155        return true;
156    }
157    int32_t userId = 100;
158    int reasonFlag = 1;
159    int32_t ret = ScreenLockAppManager::GetInstance()->RequestStrongAuth(reasonFlag, userId);
160    return ret == E_SCREENLOCK_OK;
161}
162
163bool FuzzScreenlockGetStrongAuth(const uint8_t *rawData, size_t size)
164{
165    if (size < LENGTH) {
166        return true;
167    }
168    int32_t userId = 100;
169    int reasonFlag = 1;
170    int32_t ret = ScreenLockAppManager::GetInstance()->GetStrongAuth(userId, reasonFlag);
171    return ret == E_SCREENLOCK_OK;
172}
173
174} // namespace OHOS
175
176/* Fuzzer entry point */
177extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
178{
179    if (size < OHOS::THRESHOLD) {
180        return 0;
181    }
182
183    /* Run your code on data */
184    OHOS::FuzzScreenlockManager(data, size);
185    OHOS::UnlockFuzzTest(data, size);
186    OHOS::IsLockedFuzzTest(data, size);
187    OHOS::FuzzScreenlockAppManager(data, size);
188    OHOS::FuzzScreenlockIsDisabled(data, size);
189    OHOS::FuzzScreenlockSetDisabled(data, size);
190    OHOS::FuzzScreenlockSetAuthState(data, size);
191    OHOS::FuzzScreenlockGetAuthState(data, size);
192    OHOS::FuzzScreenlockRequestStrongAuth(data, size);
193    OHOS::FuzzScreenlockGetStrongAuth(data, size);
194    return 0;
195}