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 <unistd.h>
17 #include <securec.h>
18 #include "codec_hcb_util.h"
19 #include "hdf_log.h"
20
21 #ifdef __OHOS_STANDARD_SYS__
22 #define HOST_CONFIG_PATH HDF_CONFIG_DIR
23 #define HOST_CHIP_PROD_CONFIG_PATH HDF_CHIP_PROD_CONFIG_DIR
24 #else
25 #define HOST_CONFIG_PATH "/system/etc/hdfconfig"
26 #endif
27 #define PRODUCT_PROPERTY "ro.build.product"
28 #define PRODUCT_NAME_MAX 128
29
GetConfigFilePath(const char * productName,char * configPath,size_t configPathLen)30 static bool GetConfigFilePath(const char *productName, char *configPath, size_t configPathLen)
31 {
32 static const char *adapterConfigPath[] = {
33 HOST_CONFIG_PATH,
34 HOST_CHIP_PROD_CONFIG_PATH,
35 };
36
37 size_t pathNum = sizeof(adapterConfigPath) / sizeof(adapterConfigPath[0]);
38 for (size_t i = 0; i < pathNum; ++i) {
39 if (sprintf_s(configPath, configPathLen - 1, "%s/hdf_%s.hcb", adapterConfigPath[i], productName) < 0) {
40 HDF_LOGE("failed to generate file path");
41 continue;
42 }
43
44 if (access(configPath, F_OK | R_OK) == 0) {
45 return true;
46 }
47 HDF_LOGD("invalid config file path or permission:%{public}s", configPath);
48 }
49 return false;
50 }
51
HdfGetHcsRootNode(void)52 const struct DeviceResourceNode *HdfGetHcsRootNode(void)
53 {
54 char productName[PRODUCT_NAME_MAX] = { 0 };
55 char configPath[PATH_MAX] = { 0 };
56
57 int ret = strcpy_s(productName, PRODUCT_NAME_MAX, "default");
58 if (ret != HDF_SUCCESS) {
59 return NULL;
60 }
61
62 if (!GetConfigFilePath(productName, configPath, PATH_MAX)) {
63 HDF_LOGE("failed to get config file path");
64 return NULL;
65 }
66
67 SetHcsBlobPath(configPath);
68 const struct DeviceResourceNode *mgrRoot = HcsGetRootNode();
69 return mgrRoot;
70 }
71