1 /*
2 * Copyright (c) 2024 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 "rstransactionipc_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <securec.h>
21
22 #include "platform/ohos/rs_irender_service_connection_ipc_interface_code_access_verifier.h"
23 #include "transaction/rs_render_service_connection_stub.h"
24
25 namespace OHOS {
26 namespace Rosen {
27 namespace {
28 const uint8_t* DATA = nullptr;
29 size_t g_size = 0;
30 size_t g_pos;
31 } // namespace
32
33 template<class T>
GetData()34 T GetData()
35 {
36 T object {};
37 size_t objectSize = sizeof(object);
38 if (DATA == nullptr || objectSize > g_size - g_pos) {
39 return object;
40 }
41 errno_t ret = memcpy_s(&object, objectSize, DATA + g_pos, objectSize);
42 if (ret != EOK) {
43 return {};
44 }
45 g_pos += objectSize;
46 return object;
47 }
48
RSITransactionIpcInterFaceCodeAccessVerifierFuzztest001(const uint8_t * data,size_t size)49 bool RSITransactionIpcInterFaceCodeAccessVerifierFuzztest001(const uint8_t* data, size_t size)
50 {
51 if (data == nullptr) {
52 return false;
53 }
54 // initialize
55 DATA = data;
56 g_size = size;
57 g_pos = 0;
58
59 // get data
60 uint32_t code = GetData<uint32_t>();
61
62 RSIRenderServiceConnectionInterfaceCodeAccessVerifier verifier;
63 verifier.IsExclusiveVerificationPassed(code);
64 #ifdef ENABLE_IPC_SECURITY
65 uint32_t times = GetData<uint32_t>();
66 verifier.AddRSIRenderServiceConnectionInterfaceCodePermission();
67 verifier.IsAccessTimesVerificationPassed(code, times);
68 #endif
69 return true;
70 }
71
RSITransactionIpcInterFaceCodeAccessVerifierFuzztest002(const uint8_t * data,size_t size)72 bool RSITransactionIpcInterFaceCodeAccessVerifierFuzztest002(const uint8_t* data, size_t size)
73 {
74 if (data == nullptr) {
75 return false;
76 }
77 // initialize
78 DATA = data;
79 g_size = size;
80 g_pos = 0;
81
82 // get data
83 RSIRenderServiceConnectionInterfaceCodeAccessVerifier verifier;
84 uint32_t code = static_cast<CodeUnderlyingType>(
85 RSIRenderServiceConnectionInterfaceCodeAccessVerifier::CodeEnumType::SET_REFRESH_RATE_MODE);
86 verifier.IsExclusiveVerificationPassed(code);
87 code = static_cast<CodeUnderlyingType>(
88 RSIRenderServiceConnectionInterfaceCodeAccessVerifier::CodeEnumType::GET_SHOW_REFRESH_RATE_ENABLED);
89 verifier.IsExclusiveVerificationPassed(code);
90 code = static_cast<CodeUnderlyingType>(
91 RSIRenderServiceConnectionInterfaceCodeAccessVerifier::CodeEnumType::SET_SHOW_REFRESH_RATE_ENABLED);
92 verifier.IsExclusiveVerificationPassed(code);
93 code = static_cast<CodeUnderlyingType>(
94 RSIRenderServiceConnectionInterfaceCodeAccessVerifier::CodeEnumType::TAKE_SURFACE_CAPTURE);
95 verifier.IsExclusiveVerificationPassed(code);
96 code = static_cast<CodeUnderlyingType>(
97 RSIRenderServiceConnectionInterfaceCodeAccessVerifier::CodeEnumType::GET_MEMORY_GRAPHICS);
98 verifier.IsExclusiveVerificationPassed(code);
99 code = static_cast<CodeUnderlyingType>(
100 RSIRenderServiceConnectionInterfaceCodeAccessVerifier::CodeEnumType::SET_SCREEN_POWER_STATUS);
101 verifier.IsExclusiveVerificationPassed(code);
102 #ifdef ENABLE_IPC_SECURITY
103 uint32_t times = GetData<uint32_t>();
104 PermissionType permission = PermissionType::CAPTURE_SCREEN;
105 verifier.permissionRSIRenderServiceInterfaceMappings_.emplace(code, permission);
106 verifier.permissionRSIRenderServiceInterfaceMappings_.emplace(code + 1, "unknown");
107 verifier.AddRSIRenderServiceConnectionInterfaceCodePermission();
108 verifier.accessRSIRenderServiceInterfaceTimesRestrictions_.emplace(code, code);
109 verifier.IsAccessTimesVerificationPassed(code, times);
110 #endif
111 return true;
112 }
113
114 } // namespace Rosen
115 } // namespace OHOS
116
117 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)118 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
119 {
120 /* Run your code on data */
121 OHOS::Rosen::RSITransactionIpcInterFaceCodeAccessVerifierFuzztest001(data, size);
122 OHOS::Rosen::RSITransactionIpcInterFaceCodeAccessVerifierFuzztest002(data, size);
123 return 0;
124 }
125