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 "assertfaultproxy_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#define private public
22#include "assert_fault_proxy.h"
23#undef private
24#include "ability_record.h"
25
26using namespace OHOS::AAFwk;
27using namespace OHOS::AppExecFwk;
28
29namespace OHOS {
30namespace {
31constexpr int INPUT_ZERO = 0;
32constexpr int INPUT_ONE = 1;
33constexpr int INPUT_THREE = 3;
34constexpr size_t FOO_MAX_LEN = 1024;
35constexpr size_t U32_AT_SIZE = 4;
36constexpr uint8_t ENABLE = 2;
37constexpr size_t OFFSET_ZERO = 24;
38constexpr size_t OFFSET_ONE = 16;
39constexpr size_t OFFSET_TWO = 8;
40}
41uint32_t GetU32Data(const char* ptr)
42{
43    // convert fuzz input data to an integer
44    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
45        ptr[INPUT_THREE];
46}
47
48bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
49{
50    AAFwk::UserStatus status = AAFwk::ASSERT_TERMINATE;
51    wptr<IRemoteObject> remote;
52    sptr<IRemoteObject> impl;
53    auto assertFaultProxy = std::make_shared<AbilityRuntime::AssertFaultProxy>(impl);
54    assertFaultProxy->NotifyDebugAssertResult(status);
55
56    AbilityRuntime::AssertFaultRemoteDeathRecipient::RemoteDiedHandler handler;
57    auto assertFaultRemoteDeathRecipient =
58        std::make_shared<AbilityRuntime::AssertFaultRemoteDeathRecipient>(handler);
59    assertFaultRemoteDeathRecipient->OnRemoteDied(remote);
60
61    auto modalSystemAssertUIExtension = std::make_shared<AbilityRuntime::ModalSystemAssertUIExtension>();
62    Want want;
63    modalSystemAssertUIExtension->CreateModalUIExtension(want);
64
65    auto assertDialogConnection =
66        std::make_shared<AbilityRuntime::ModalSystemAssertUIExtension::AssertDialogConnection>();
67    assertDialogConnection->SetReqeustAssertDialogWant(want);
68    AppExecFwk::ElementName element;
69    sptr<IRemoteObject> remoteObject;
70    int intParam = static_cast<int>(GetU32Data(data));
71    assertDialogConnection->OnAbilityConnectDone(element, remoteObject, intParam);
72    assertDialogConnection->OnAbilityDisconnectDone(element, intParam);
73    modalSystemAssertUIExtension->DisconnectSystemUI();
74    modalSystemAssertUIExtension->TryNotifyOneWaitingThread();
75    modalSystemAssertUIExtension->TryNotifyOneWaitingThreadInner();
76    modalSystemAssertUIExtension->GetConnection();
77    modalSystemAssertUIExtension->dialogConnectionCallback_ = nullptr;
78    modalSystemAssertUIExtension->GetConnection();
79
80    return true;
81}
82}  // namespace OHOS
83
84/* Fuzzer entry point */
85extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
86{
87    /* Run your code on data */
88    if (data == nullptr) {
89        std::cout << "invalid data" << std::endl;
90        return 0;
91    }
92
93    /* Validate the length of size */
94    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
95        return 0;
96    }
97
98    char* ch = (char*)malloc(size + 1);
99    if (ch == nullptr) {
100        std::cout << "malloc failed." << std::endl;
101        return 0;
102    }
103
104    (void)memset_s(ch, size + 1, 0x00, size + 1);
105    if (memcpy_s(ch, size + 1, data, size) != EOK) {
106        std::cout << "copy failed." << std::endl;
107        free(ch);
108        ch = nullptr;
109        return 0;
110    }
111
112    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
113    free(ch);
114    ch = nullptr;
115    return 0;
116}
117
118