1 /*
2 * Copyright (c) 2023 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 "camera_fwk_metadata_utils_fuzzer.h"
17 #include "hstream_capture.h"
18 #include "message_parcel.h"
19 #include "nativetoken_kit.h"
20 #include "token_setproc.h"
21 #include "accesstoken_kit.h"
22 #include "camera_metadata_info.h"
23 #include "metadata_utils.h"
24
25 namespace {
26
27 const int32_t LIMITSIZE = 16;
28
29 }
30
31 namespace OHOS {
32 namespace CameraStandard {
33
34 bool CameraFwkMetadataUtilsFuzzer::hasPermission = false;
35
CheckPermission()36 void CameraFwkMetadataUtilsFuzzer::CheckPermission()
37 {
38 if (!hasPermission) {
39 uint64_t tokenId;
40 const char *perms[0];
41 perms[0] = "ohos.permission.CAMERA";
42 NativeTokenInfoParams infoInstance = { .dcapsNum = 0, .permsNum = 1, .aclsNum = 0, .dcaps = NULL,
43 .perms = perms, .acls = NULL, .processName = "camera_capture", .aplStr = "system_basic",
44 };
45 tokenId = GetAccessTokenId(&infoInstance);
46 SetSelfTokenID(tokenId);
47 OHOS::Security::AccessToken::AccessTokenKit::ReloadNativeTokenInfo();
48 hasPermission = true;
49 }
50 }
51
Test(uint8_t * rawData,size_t size)52 void CameraFwkMetadataUtilsFuzzer::Test(uint8_t *rawData, size_t size)
53 {
54 if (rawData == nullptr || size < LIMITSIZE) {
55 return;
56 }
57 CheckPermission();
58
59 MessageParcel data;
60 data.WriteRawData(rawData, size);
61
62 std::shared_ptr<OHOS::Camera::CameraMetadata> srcMetadata;
63 std::shared_ptr<OHOS::Camera::CameraMetadata> dstMetadata;
64
65 data.RewindRead(0);
66 srcMetadata->addEntry(data.ReadUint32(), rawData, size);
67 CameraFwkMetadataUtils::MergeMetadata(srcMetadata, dstMetadata);
68
69 std::shared_ptr<OHOS::Camera::CameraMetadata> metadata = CameraFwkMetadataUtils::CopyMetadata(srcMetadata);
70
71 CameraFwkMetadataUtils::LogFormatCameraMetadata(metadata);
72
73 CameraFwkMetadataUtils::RecreateMetadata(metadata);
74
75 data.RewindRead(0);
76 camera_metadata_item_t item = {
77 data.ReadUint32(),
78 data.ReadUint32(),
79 data.ReadUint32(),
80 data.ReadUint32(),
81 };
82 camera_metadata_item_t srcItem = item;
83
84 CameraFwkMetadataUtils::UpdateMetadataTag(srcItem, dstMetadata);
85 CameraFwkMetadataUtils::DumpMetadataItemInfo(item);
86 CameraFwkMetadataUtils::DumpMetadataInfo(srcMetadata);
87 }
88
89 } // namespace CameraStandard
90 } // namespace OHOS
91
92 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(uint8_t * data,size_t size)93 extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size)
94 {
95 /* Run your code on data */
96 OHOS::CameraStandard::CameraFwkMetadataUtilsFuzzer::Test(data, size);
97 return 0;
98 }