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 "scsiinquiry_fuzzer.h"
17 #include <cstring>
18 #include <securec.h>
19 #include <scsi/sg.h>
20 #include "hdf_log.h"
21 #include "scsicommonfunction_fuzzer.h"
22 #define HDF_LOG_TAG scsi_ddk_fuzzer
23
24 using namespace OHOS::HDI::Usb::ScsiDdk::V1_0;
25
26 namespace OHOS {
27 namespace SCSI {
28 constexpr uint32_t DEVICE_MEM_MAP_SIZE = 1024;
ConstructParamsFromData(ScsiPeripheralInquiryRequest & request,const uint8_t * data,size_t size)29 static void ConstructParamsFromData(ScsiPeripheralInquiryRequest& request, const uint8_t* data, size_t size)
30 {
31 if (data == nullptr || size < sizeof(uint8_t)) {
32 return;
33 }
34
35 request.pageCode = *(data);
36 size_t offset = sizeof(uint8_t);
37
38 if (size >= offset + sizeof(uint16_t)) {
39 (void)memcpy_s(&request.allocationLength, sizeof(uint16_t), data + offset, sizeof(uint16_t));
40 offset += sizeof(uint16_t);
41 }
42
43 if (size >= offset + sizeof(uint8_t)) {
44 request.control = *(data + offset);
45 offset += sizeof(uint8_t);
46 }
47
48 if (size >= offset + sizeof(uint8_t)) {
49 request.byte1 = *(data + offset);
50 offset += sizeof(uint8_t);
51 }
52
53 if (size >= offset + sizeof(uint32_t)) {
54 (void)memcpy_s(&request.timeout, sizeof(uint32_t), data + offset, sizeof(uint32_t));
55 }
56 }
57
ScsiInquiryFuzzTest(const uint8_t * data,size_t size)58 bool ScsiInquiryFuzzTest(const uint8_t *data, size_t size)
59 {
60 sptr<IScsiPeripheralDdk> scsiPeripheralDdk = IScsiPeripheralDdk::Get();
61 if (scsiPeripheralDdk == nullptr) {
62 HDF_LOGE("%{public}s: get ddk failed", __func__);
63 return false;
64 }
65 int32_t ret = scsiPeripheralDdk->Init();
66 if (ret != HDF_SUCCESS) {
67 HDF_LOGE("%{public}s: init failed, ret = %{public}d", __func__, ret);
68 return false;
69 }
70 ScsiPeripheralDevice device;
71 ret = ScsiFuzzTestHostModeInit(scsiPeripheralDdk, device);
72 if (ret != HDF_SUCCESS) {
73 HDF_LOGE("%{public}s: scsi peripheral open device failed, ret = %{public}d", __func__, ret);
74 return false;
75 }
76
77 ScsiPeripheralInquiryRequest request = {};
78 ConstructParamsFromData(request, data, size);
79 request.memMapSize = DEVICE_MEM_MAP_SIZE;
80 ScsiPeripheralInquiryInfo inquiryInfo;
81 ScsiPeripheralResponse response;
82 ret = scsiPeripheralDdk->Inquiry(device, request, inquiryInfo, response);
83
84 ret = scsiPeripheralDdk->Close(device);
85 if (ret != HDF_SUCCESS) {
86 HDF_LOGE("%{public}s: close device failed", __func__);
87 scsiPeripheralDdk->Release();
88 return false;
89 }
90 ret = scsiPeripheralDdk->Release();
91 if (ret != HDF_SUCCESS) {
92 HDF_LOGE("%{public}s: release failed", __func__);
93 return false;
94 }
95 return true;
96 }
97 } // namespace SCSI
98 } // namespace OHOS
99
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)100 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
101 {
102 OHOS::SCSI::ScsiInquiryFuzzTest(data, size);
103 return 0;
104 }